init

.gitignore

@@ -0,0 +1,5 @@
+.vscode
+.idea
+*.o
+bpf_bpfeb.go
+bpf_bpfel.go

LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+  A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate.  Many developers of free software are heartened and
+encouraged by the resulting cooperation.  However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+  The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community.  It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server.  Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU Affero General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

Makefile

@@ -0,0 +1,20 @@
+#
+#  SPDX-License-Identifier: AGPL-3.0-only
+#  Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+#
+
+# The development version of clang is distributed as the 'clang' binary,
+# while stable/released versions have a version number attached.
+# Pin the default clang to a stable version.
+CLANG ?= clang
+STRIP ?= llvm-strip
+CFLAGS := -O2 -g -Wall -Werror $(CFLAGS)
+
+.PHONY: generate
+
+# $BPF_CLANG is used in go:generate invocations.
+generate: export BPF_CLANG := $(CLANG)
+generate: export BPF_STRIP := $(STRIP)
+generate: export BPF_CFLAGS := $(CFLAGS)
+generate:
+	go generate ./component/control/...

README.md

@@ -0,0 +1,10 @@
+# dae
+
+***dae***, means goose, is a lightweight and high-performance transparent proxy solution.
+
+In order to improve the traffic diversion performance as much as possible, dae runs the transparent proxy and traffic diversion suite in the linux kernel by eBPF. Therefore, we have the opportunity to make the direct traffic bypass the forwarding by proxy application and achieve true direct traffic through. Under such a magic trick, there is almost no performance loss and additional resource consumption for direct traffic.
+
+As a successor of [v2rayA](https://github.com/v2rayA/v2rayA), dae abandoned v2ray-core to meet the needs of users more freely. In the initial conception, dae will serve soft router users first, and may also serve desktop users later.
+
+<img src="https://github.com/v2rayA/dae/blob/main/logo.png" border="0">
+

common/assets/assets.go

@@ -0,0 +1,72 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package assets
+
+import (
+	"errors"
+	"github.com/adrg/xdg"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"runtime"
+)
+
+func GetLocationAsset(filename string) (path string, err error) {
+	// FIXME:
+	folder := "xray"
+	location := os.Getenv("DAE_LOCATION_ASSET")
+	// check if DAE_LOCATION_ASSET is set
+	if location != "" {
+		// add DAE_LOCATION_ASSET to search path
+		searchPaths := []string{
+			filepath.Join(location, filename),
+		}
+		// additional paths for non windows platforms
+		if runtime.GOOS != "windows" {
+			searchPaths = append(
+				searchPaths,
+				filepath.Join("/usr/local/share", folder, filename),
+				filepath.Join("/usr/share", folder, filename),
+			)
+		}
+		for _, searchPath := range searchPaths {
+			if _, err = os.Stat(searchPath); err != nil && errors.Is(err, fs.ErrNotExist) {
+				continue
+			}
+			// return the first path that exists
+			return searchPath, nil
+		}
+		// or download asset into DAE_LOCATION_ASSET
+		return searchPaths[0], nil
+	} else {
+		if runtime.GOOS != "windows" {
+			// search XDG data directories on non windows platform
+			// symlink all assets into XDG_RUNTIME_DIR
+			relpath := filepath.Join(folder, filename)
+			fullpath, err := xdg.SearchDataFile(relpath)
+			if err != nil {
+				fullpath, err = xdg.DataFile(relpath)
+				if err != nil {
+					return "", err
+				}
+			}
+			runtimepath, err := xdg.RuntimeFile(filepath.Join(folder, filename))
+			if err != nil {
+				return "", err
+			}
+			os.Remove(runtimepath)
+			err = os.Symlink(fullpath, runtimepath)
+			if err != nil {
+				return "", err
+			}
+			return fullpath, err
+		} else {
+			// fallback to the old behavior of using only config dir on Windows
+			// FIXME: conf.GetEnvironmentConfig().Config
+			return filepath.Join("./", filename), nil
+		}
+	}
+}

common/consts/dialer.go

@@ -0,0 +1,19 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package consts
+
+const (
+	TestUrl = "https://connectivitycheck.gstatic.com/generate_204"
+)
+
+type DialerSelectionPolicy string
+
+const (
+	DialerSelectionPolicy_Random                DialerSelectionPolicy = "random"
+	DialerSelectionPolicy_Fixed                 DialerSelectionPolicy = "fixed"
+	DialerSelectionPolicy_MinAverage10Latencies DialerSelectionPolicy = "min_avg10"
+	DialerSelectionPolicy_MinLastLatency        DialerSelectionPolicy = "min"
+)

common/consts/ebpf.go

@@ -0,0 +1,89 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package consts
+
+const (
+	AppName           = "dae"
+	MaxInterfaceIpNum = 8
+	BpfPinRoot        = "/sys/fs/bpf"
+
+	AddrHdrSize = 20
+)
+
+type ParamKey uint32
+
+const (
+	// Deprecated:
+	IpsLenKey ParamKey = iota
+	BigEndianTproxyPortKey
+	DisableL4TxChecksumKey
+	DisableL4RxChecksumKey
+	EpochKey
+	RoutingsLenKey
+)
+
+type DisableL4ChecksumPolicy uint32
+
+const (
+	DisableL4ChecksumPolicy_EnableL4Checksum DisableL4ChecksumPolicy = iota
+	DisableL4ChecksumPolicy_Restore
+	DisableL4ChecksumPolicy_SetZero
+)
+
+type RoutingType uint32
+
+const (
+	RoutingType_DomainSet RoutingType = iota
+	RoutingType_IpSet
+	RoutingType_SourceIpSet
+	RoutingType_Port
+	RoutingType_SourcePort
+	RoutingType_Network
+	RoutingType_IpVersion
+	RoutingType_Mac
+	RoutingType_Final
+)
+
+type OutboundIndex uint8
+
+const (
+	OutboundDirect            OutboundIndex = 0
+	OutboundControlPlaneRoute OutboundIndex = 0xFE
+	OutboundLogicalAnd        OutboundIndex = 0xFF
+)
+
+func (i OutboundIndex) String() string {
+	switch i {
+	case OutboundDirect:
+		return "direct"
+	case OutboundControlPlaneRoute:
+		return "<Control Plane Route>"
+	case OutboundLogicalAnd:
+		return "<AND>"
+	default:
+		return ""
+	}
+}
+
+const (
+	MaxRoutingLen = 96
+)
+
+type NetworkType uint8
+
+const (
+	NetworkType_TCP     NetworkType = 1
+	NetworkType_UDP     NetworkType = 2
+	NetworkType_TCP_UDP NetworkType = 3
+)
+
+type IpVersion uint8
+
+const (
+	IpVersion_4 IpVersion = 1
+	IpVersion_6 IpVersion = 2
+	IpVersion_X IpVersion = 3
+)

common/consts/routing.go

@@ -0,0 +1,16 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package consts
+
+const (
+	RoutingDomain_Full    = "full"
+	RoutingDomain_Keyword = "keyword"
+	RoutingDomain_Suffix  = "suffix"
+	RoutingDomain_Regex   = "regex"
+
+	Function_Domain = "domain"
+	Function_Ip     = "ip"
+)

common/utils.go

@@ -0,0 +1,80 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package common
+
+import (
+	"encoding/base64"
+	"encoding/binary"
+	"net/url"
+	"strings"
+)
+
+func CloneStrings(slice []string) []string {
+	c := make([]string, len(slice))
+	copy(c, slice)
+	return c
+}
+
+func ARangeU32(n uint32) []uint32 {
+	ret := make([]uint32, n)
+	for i := uint32(0); i < n; i++ {
+		ret[i] = i
+	}
+	return ret
+}
+
+func Ipv6ByteSliceToUint32Array(_ip []byte) (ip [4]uint32) {
+	for j := 0; j < 16; j += 4 {
+		ip[j/4] = binary.LittleEndian.Uint32(_ip[j : j+4])
+	}
+	return ip
+}
+
+func Deduplicate(list []string) []string {
+	res := make([]string, 0, len(list))
+	m := make(map[string]struct{})
+	for _, v := range list {
+		if _, ok := m[v]; ok {
+			continue
+		}
+		m[v] = struct{}{}
+		res = append(res, v)
+	}
+	return res
+}
+
+func Base64UrlDecode(s string) (string, error) {
+	s = strings.TrimSpace(s)
+	saver := s
+	if len(s)%4 > 0 {
+		s += strings.Repeat("=", 4-len(s)%4)
+	}
+	raw, err := base64.URLEncoding.DecodeString(s)
+	if err != nil {
+		return saver, err
+	}
+	return string(raw), nil
+}
+
+func Base64StdDecode(s string) (string, error) {
+	s = strings.TrimSpace(s)
+	saver := s
+	if len(s)%4 > 0 {
+		s += strings.Repeat("=", 4-len(s)%4)
+	}
+	raw, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return saver, err
+	}
+	return string(raw), nil
+}
+
+func SetValue(values *url.Values, key string, value string) {
+	if value == "" {
+		return
+	}
+	values.Set(key, value)
+}

component/control/control.go

@@ -0,0 +1,9 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+// $BPF_CLANG and $BPF_CFLAGS are set by the Makefile.
+//go:generate go run github.com/cilium/ebpf/cmd/bpf2go -cc $BPF_CLANG -strip $BPF_STRIP -cflags $BPF_CFLAGS bpf kern/tproxy.c -- -I../headers

component/control/control_plane.go

@@ -0,0 +1,376 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"foo/common"
+	"foo/common/consts"
+	"foo/component/outbound"
+	"foo/component/outbound/dialer"
+	"foo/component/routing"
+	"foo/pkg/pool"
+	"github.com/cilium/ebpf"
+	"github.com/cilium/ebpf/rlimit"
+	"github.com/sirupsen/logrus"
+	"github.com/vishvananda/netlink"
+	"golang.org/x/sys/unix"
+	"net"
+	"net/netip"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+type ControlPlane struct {
+	log *logrus.Logger
+
+	// TODO: add mutex?
+	outbounds       []*outbound.DialerGroup
+	outboundName2Id map[string]uint8
+	bpf             *bpfObjects
+
+	SimulatedLpmTries  [][]netip.Prefix
+	SimulatedDomainSet []DomainSet
+	Final              string
+
+	// mutex protects the dnsCache.
+	mutex    sync.Mutex
+	dnsCache map[string]*dnsCache
+	epoch    uint32
+
+	deferFuncs []func() error
+}
+
+func NewControlPlane(log *logrus.Logger, routingA string) (*ControlPlane, error) {
+	// Allow the current process to lock memory for eBPF resources.
+	if err := rlimit.RemoveMemlock(); err != nil {
+		return nil, fmt.Errorf("rlimit.RemoveMemlock:%v", err)
+	}
+	pinPath := filepath.Join(consts.BpfPinRoot, consts.AppName)
+	os.MkdirAll(pinPath, 0755)
+	// Load pre-compiled programs and maps into the kernel.
+	var bpf bpfObjects
+retry_load:
+	if err := loadBpfObjects(&bpf, &ebpf.CollectionOptions{
+		Maps: ebpf.MapOptions{
+			PinPath: pinPath,
+		},
+	}); err != nil {
+		if errors.Is(err, ebpf.ErrMapIncompatible) {
+			prefix := "use pinned map "
+			iPrefix := strings.Index(err.Error(), prefix)
+			if iPrefix == -1 {
+				return nil, fmt.Errorf("loading objects: bad format: %w", err)
+			}
+			mapName := strings.SplitN(err.Error()[iPrefix+len(prefix):], ":", 2)[0]
+			_ = os.Remove(filepath.Join(pinPath, mapName))
+			log.Warnf("New map format was incompatible with existing map %v, and the old one was removed.", mapName)
+			goto retry_load
+		}
+		return nil, fmt.Errorf("loading objects: %w", err)
+	}
+
+	// Flush dst_map.
+	//_ = os.Remove(filepath.Join(pinPath, "dst_map"))
+	//if err := bpf.ParamMap.Update(consts.IpsLenKey, uint32(1), ebpf.UpdateAny); err != nil {
+	//	return nil, err
+	//}
+	//if err := bpf.ParamMap.Update(consts.BigEndianTproxyPortKey, uint32(swap16(tproxyPort)), ebpf.UpdateAny); err != nil {
+	//	return nil, err
+	//}
+	if err := bpf.ParamMap.Update(consts.DisableL4TxChecksumKey, consts.DisableL4ChecksumPolicy_SetZero, ebpf.UpdateAny); err != nil {
+		return nil, err
+	}
+	if err := bpf.ParamMap.Update(consts.DisableL4RxChecksumKey, consts.DisableL4ChecksumPolicy_SetZero, ebpf.UpdateAny); err != nil {
+		return nil, err
+	}
+	var epoch uint32
+	bpf.ParamMap.Lookup(consts.EpochKey, &epoch)
+	epoch++
+	if err := bpf.ParamMap.Update(consts.EpochKey, epoch, ebpf.UpdateAny); err != nil {
+		return nil, err
+	}
+	//if err := bpf.ParamMap.Update(consts.InterfaceIpParamOff, binary.LittleEndian.Uint32([]byte{172, 17, 0, 1}), ebpf.UpdateAny); err != nil { // 172.17.0.1
+	//	return nil, err
+	//}
+	//if err := bpf.ParamMap.Update(InterfaceIpParamOff+1, binary.LittleEndian.Uint32([]byte{10, 249, 40, 166}), ebpf.UpdateAny); err != nil { // 10.249.40.166
+	//	log.Println(err)
+	//	return
+	//}
+	//if err := bpf.ParamMap.Update(InterfaceIpParamOff+2, binary.LittleEndian.Uint32([]byte{10, 250, 52, 180}), ebpf.UpdateAny); err != nil { // 10.250.52.180
+	//	log.Println(err)
+	//	return
+	//}
+
+	/**/
+
+	rules, final, err := routing.Parse(routingA)
+	if err != nil {
+		return nil, fmt.Errorf("routingA error: \n %w", err)
+	}
+	if rules, err = routing.ApplyRulesOptimizers(rules,
+		&routing.RefineFunctionParamKeyOptimizer{},
+		&routing.DatReaderOptimizer{Logger: log},
+		&routing.MergeAndSortRulesOptimizer{},
+		&routing.DeduplicateParamsOptimizer{},
+	); err != nil {
+		return nil, fmt.Errorf("ApplyRulesOptimizers error: \n %w", err)
+	}
+	if log.IsLevelEnabled(logrus.TraceLevel) {
+		var debugBuilder strings.Builder
+		for _, rule := range rules {
+			debugBuilder.WriteString(rule.String(true))
+		}
+		log.Tracef("RoutingA:\n%vfinal: %v\n", debugBuilder.String(), final)
+	}
+	// TODO:
+	d, err := dialer.NewFromLink("socks5://localhost:1080")
+	if err != nil {
+		return nil, err
+	}
+	outbounds := []*outbound.DialerGroup{
+		outbound.NewDialerGroup(log, consts.OutboundDirect.String(),
+			[]*dialer.Dialer{dialer.FullconeDirectDialer},
+			outbound.DialerSelectionPolicy{
+				Policy:     consts.DialerSelectionPolicy_Fixed,
+				FixedIndex: 0,
+			}),
+		outbound.NewDialerGroup(log, "proxy",
+			[]*dialer.Dialer{d},
+			outbound.DialerSelectionPolicy{
+				Policy: consts.DialerSelectionPolicy_MinAverage10Latencies,
+			}),
+	}
+	// Generate outboundName2Id from outbounds.
+	if len(outbounds) > 0xff {
+		return nil, fmt.Errorf("too many outbounds")
+	}
+	outboundName2Id := make(map[string]uint8)
+	for i, o := range outbounds {
+		outboundName2Id[o.Name] = uint8(i)
+	}
+	builder := NewRoutingMatcherBuilder(outboundName2Id, &bpf)
+	if err := routing.ApplyMatcherBuilder(builder, rules, final); err != nil {
+		return nil, fmt.Errorf("ApplyMatcherBuilder: %w", err)
+	}
+	if err := builder.Build(); err != nil {
+		return nil, fmt.Errorf("RoutingMatcherBuilder.Build: %w", err)
+	}
+	/**/
+
+	return &ControlPlane{
+		log:                log,
+		outbounds:          outbounds,
+		outboundName2Id:    outboundName2Id,
+		bpf:                &bpf,
+		SimulatedLpmTries:  builder.SimulatedLpmTries,
+		SimulatedDomainSet: builder.SimulatedDomainSet,
+		Final:              final,
+		mutex:              sync.Mutex{},
+		dnsCache:           make(map[string]*dnsCache),
+		epoch:              epoch,
+		deferFuncs:         []func() error{bpf.Close},
+	}, nil
+}
+
+func (c *ControlPlane) BindLink(ifname string) error {
+	link, err := netlink.LinkByName(ifname)
+	if err != nil {
+		return err
+	}
+	// Insert an elem into IfindexIpsMap.
+	// TODO: We should monitor IP change of the link.
+	ipnets, err := netlink.AddrList(link, netlink.FAMILY_ALL)
+	if err != nil {
+		return err
+	}
+	// TODO: If we monitor IP change of the link, we should remove code below.
+	if len(ipnets) == 0 {
+		return fmt.Errorf("interface %v has no ip", ifname)
+	}
+	var linkIp bpfIfIp
+	for _, ipnet := range ipnets {
+		ip, ok := netip.AddrFromSlice(ipnet.IP)
+		if !ok {
+			continue
+		}
+		if ip.IsLinkLocalUnicast() || ip.IsLinkLocalMulticast() {
+			continue
+		}
+		if (ip.Is6() && linkIp.HasIp6) ||
+			(ip.Is4() && linkIp.HasIp4) {
+			continue
+		}
+		ip6format := ip.As16()
+		if ip.Is4() {
+			linkIp.HasIp4 = true
+			linkIp.Ip4 = common.Ipv6ByteSliceToUint32Array(ip6format[:])
+		} else {
+			linkIp.HasIp6 = true
+			linkIp.Ip6 = common.Ipv6ByteSliceToUint32Array(ip6format[:])
+		}
+		if linkIp.HasIp4 && linkIp.HasIp6 {
+			break
+		}
+	}
+	if err := c.bpf.IfindexIpMap.Update(uint32(link.Attrs().Index), linkIp, ebpf.UpdateAny); err != nil {
+		return fmt.Errorf("update IfindexIpsMap: %w", err)
+	}
+
+	// Insert qdisc and filters.
+	qdisc := &netlink.GenericQdisc{
+		QdiscAttrs: netlink.QdiscAttrs{
+			LinkIndex: link.Attrs().Index,
+			Handle:    netlink.MakeHandle(0xffff, 0),
+			Parent:    netlink.HANDLE_CLSACT,
+		},
+		QdiscType: "clsact",
+	}
+	if err := netlink.QdiscAdd(qdisc); err != nil {
+		if os.IsExist(err) {
+			_ = netlink.QdiscDel(qdisc)
+			err = netlink.QdiscAdd(qdisc)
+		}
+
+		if err != nil {
+			return fmt.Errorf("cannot add clsact qdisc: %w", err)
+		}
+	}
+	c.deferFuncs = append(c.deferFuncs, func() error {
+		return netlink.QdiscDel(qdisc)
+	})
+
+	filter := &netlink.BpfFilter{
+		FilterAttrs: netlink.FilterAttrs{
+			LinkIndex: link.Attrs().Index,
+			Parent:    netlink.HANDLE_MIN_INGRESS,
+			Handle:    netlink.MakeHandle(0, 1),
+			Protocol:  unix.ETH_P_ALL,
+			Priority:  0,
+		},
+		Fd:           c.bpf.bpfPrograms.TproxyIngress.FD(),
+		Name:         consts.AppName + "_ingress",
+		DirectAction: true,
+	}
+	if err := netlink.FilterAdd(filter); err != nil {
+		return fmt.Errorf("cannot attach ebpf object to filter ingress: %w", err)
+	}
+	c.deferFuncs = append(c.deferFuncs, func() error {
+		return netlink.FilterDel(filter)
+	})
+	filterEgress := &netlink.BpfFilter{
+		FilterAttrs: netlink.FilterAttrs{
+			LinkIndex: link.Attrs().Index,
+			Parent:    netlink.HANDLE_MIN_EGRESS,
+			Handle:    netlink.MakeHandle(0, 1),
+			Protocol:  unix.ETH_P_ALL,
+			Priority:  0,
+		},
+		Fd:           c.bpf.bpfPrograms.TproxyEgress.FD(),
+		Name:         consts.AppName + "_egress",
+		DirectAction: true,
+	}
+	if err := netlink.FilterAdd(filterEgress); err != nil {
+		return fmt.Errorf("cannot attach ebpf object to filter ingress: %w", err)
+	}
+	c.deferFuncs = append(c.deferFuncs, func() error {
+		return netlink.FilterDel(filter)
+	})
+	return nil
+}
+
+func (c *ControlPlane) ListenAndServe(port uint16) (err error) {
+	// Listen.
+	listener, err := net.Listen("tcp", "0.0.0.0:"+strconv.Itoa(int(port)))
+	if err != nil {
+		return fmt.Errorf("listenTCP: %w", err)
+	}
+	defer listener.Close()
+	lConn, err := net.ListenUDP("udp", &net.UDPAddr{
+		IP:   net.IP{0, 0, 0, 0},
+		Port: int(port),
+	})
+	if err != nil {
+		return fmt.Errorf("listenUDP: %w", err)
+	}
+	defer lConn.Close()
+
+	// Serve.
+	if err := c.bpf.ParamMap.Update(consts.BigEndianTproxyPortKey, uint32(swap16(port)), ebpf.UpdateAny); err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	c.deferFuncs = append(c.deferFuncs, func() error {
+		cancel()
+		return nil
+	})
+	go func() {
+		defer cancel()
+		for {
+			lconn, err := listener.Accept()
+			if err != nil {
+				if !strings.Contains(err.Error(), "use of closed network connection") {
+					c.log.Errorf("Error when accept: %v", err)
+				}
+				break
+			}
+			go func() {
+				if err := c.handleConn(lconn); err != nil {
+					c.log.Warnln("handleConn:", err)
+				}
+			}()
+		}
+	}()
+	go func() {
+		defer cancel()
+		for {
+			var buf [65536]byte
+			n, lAddrPort, err := lConn.ReadFromUDPAddrPort(buf[:])
+			if err != nil {
+				if !strings.Contains(err.Error(), "use of closed network connection") {
+					c.log.Errorf("ReadFromUDPAddrPort: %v, %v", lAddrPort.String(), err)
+				}
+				break
+			}
+			addrHdr, dataOffset, err := ParseAddrHdr(buf[:n])
+			if err != nil {
+				c.log.Warnf("No AddrPort presented")
+				continue
+			}
+			newBuf := pool.Get(n - dataOffset)
+			copy(newBuf, buf[dataOffset:n])
+			go func(data []byte, lConn *net.UDPConn, lAddrPort netip.AddrPort, addrHdr *AddrHdr) {
+				if e := c.handlePkt(newBuf, lConn, lAddrPort, addrHdr); e != nil {
+					c.log.Warnln("handlePkt:", e)
+				}
+				pool.Put(newBuf)
+			}(newBuf, lConn, lAddrPort, addrHdr)
+		}
+	}()
+	<-ctx.Done()
+	return nil
+}
+
+func (c *ControlPlane) Close() (err error) {
+	// Invoke defer funcs in reverse order.
+	for i := len(c.deferFuncs) - 1; i >= 0; i-- {
+		if e := c.deferFuncs[i](); e != nil {
+			// Combine errors.
+			if err != nil {
+				err = fmt.Errorf("%w; %v", err, e)
+			} else {
+				err = e
+			}
+		}
+	}
+	return err
+}

component/control/dns.go

@@ -0,0 +1,163 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"fmt"
+	"foo/common"
+	"foo/common/consts"
+	"github.com/cilium/ebpf"
+	"golang.org/x/net/dns/dnsmessage"
+	"net/netip"
+	"strings"
+	"time"
+)
+
+type dnsCache struct {
+	DomainBitmap [consts.MaxRoutingLen / 32]uint32
+	Answers      []dnsmessage.Resource
+	Deadline     time.Time
+}
+
+func (c *dnsCache) FillInto(req *dnsmessage.Message) {
+	req.Answers = c.Answers
+	req.RCode = dnsmessage.RCodeSuccess
+	req.Response = true
+	req.RecursionAvailable = true
+	req.Truncated = false
+}
+
+// BatchUpdateDomainRouting update bpf map domain_routing. Since one IP may have multiple domains, this function should
+// be invoked every A/AAAA-record lookup.
+func (c *ControlPlane) BatchUpdateDomainRouting(cache *dnsCache) error {
+	// Parse ips from DNS resp answers.
+	var ips []netip.Addr
+	for _, ans := range cache.Answers {
+		switch ans.Header.Type {
+		case dnsmessage.TypeA:
+			ips = append(ips, netip.AddrFrom4(ans.Body.(*dnsmessage.AResource).A))
+		case dnsmessage.TypeAAAA:
+			ips = append(ips, netip.AddrFrom16(ans.Body.(*dnsmessage.AAAAResource).AAAA))
+		}
+	}
+
+	// Update bpf map.
+	// Construct keys and vals, and BatchUpdate.
+	var keys [][4]uint32
+	var vals []bpfDomainRouting
+	for _, ip := range ips {
+		ip6 := ip.As16()
+		keys = append(keys, common.Ipv6ByteSliceToUint32Array(ip6[:]))
+		vals = append(vals, bpfDomainRouting{
+			Bitmap: cache.DomainBitmap,
+			Epoch:  c.epoch,
+		})
+	}
+	if _, err := c.bpf.DomainRoutingMap.BatchUpdate(keys, vals, &ebpf.BatchOptions{
+		ElemFlags: uint64(ebpf.UpdateAny),
+	}); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (c *ControlPlane) LookupDnsRespCache(msg *dnsmessage.Message) (resp []byte) {
+	q := msg.Questions[0]
+	if msg.Response {
+		return nil
+	}
+	switch q.Type {
+	case dnsmessage.TypeA, dnsmessage.TypeAAAA:
+	default:
+		return nil
+	}
+	now := time.Now()
+	c.mutex.Lock()
+	cache, ok := c.dnsCache[strings.ToLower(q.Name.String())+q.Type.String()]
+	c.mutex.Unlock()
+	if ok && cache.Deadline.After(now) {
+		//c.log.Debugln("DNS cache hit:", q.Name, q.Type)
+		cache.FillInto(msg)
+		b, err := msg.Pack()
+		if err != nil {
+			return nil
+		}
+		if err = c.BatchUpdateDomainRouting(cache); err != nil {
+			c.log.Warnf("failed to BatchUpdateDomainRouting: %v", err)
+			return nil
+		}
+		return b
+	}
+	return nil
+}
+
+// DnsRespHandler handle DNS resp. This function should be invoked when cache miss.
+func (c *ControlPlane) DnsRespHandler(data []byte) (newData []byte, err error) {
+	var msg dnsmessage.Message
+	if err = msg.Unpack(data); err != nil {
+		return nil, fmt.Errorf("unpack dns pkt: %w", err)
+	}
+
+	// Check healthy.
+	if !msg.Response || msg.RCode != dnsmessage.RCodeSuccess {
+		return data, nil
+	}
+	// Check req type.
+	q := msg.Questions[0]
+	switch q.Type {
+	case dnsmessage.TypeA, dnsmessage.TypeAAAA:
+	default:
+		return data, nil
+	}
+
+	// Set ttl.
+	var ttl uint32
+	for i := range msg.Answers {
+		if ttl == 0 {
+			ttl = msg.Answers[i].Header.TTL
+		}
+		// Set TTL = zero. This requests applications must resend every request.
+		// However, it may be not defined in the standard.
+		msg.Answers[i].Header.TTL = 0
+	}
+
+	// Check if there is any A/AAAA record.
+	var hasIpRecord bool
+	for i := range msg.Answers {
+		switch msg.Answers[i].Header.Type {
+		case dnsmessage.TypeA, dnsmessage.TypeAAAA:
+			hasIpRecord = true
+		}
+	}
+	if !hasIpRecord {
+		return msg.Pack()
+	}
+
+	// Update dnsCache.
+	c.mutex.Lock()
+	fqdn := q.Name.String()
+	cacheKey := strings.ToLower(fqdn) + q.Type.String()
+	cache, ok := c.dnsCache[cacheKey]
+	if ok {
+		c.mutex.Unlock()
+		cache.Deadline = time.Now().Add(time.Duration(ttl) * time.Second)
+		cache.Answers = msg.Answers
+	} else {
+		cache = &dnsCache{
+			DomainBitmap: c.MatchDomainBitmap(strings.TrimSuffix(fqdn, ".")),
+			Answers:      msg.Answers,
+			Deadline:     time.Now().Add(time.Duration(ttl) * time.Second),
+		}
+		c.dnsCache[cacheKey] = cache
+		c.mutex.Unlock()
+	}
+	if err = c.BatchUpdateDomainRouting(cache); err != nil {
+		return nil, fmt.Errorf("BatchUpdateDomainRouting: %w", err)
+	}
+
+	// Pack to get newData.
+	return msg.Pack()
+}

component/control/match.go

@@ -0,0 +1,41 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"foo/common/consts"
+	"strings"
+)
+
+func (c *ControlPlane) MatchDomainBitmap(domain string) (bitmap [consts.MaxRoutingLen / 32]uint32) {
+	// FIXME: high performance implementation.
+	for _, s := range c.SimulatedDomainSet {
+		for _, d := range s.Domains {
+			var hit bool
+			switch s.Key {
+			case consts.RoutingDomain_Suffix:
+				if strings.HasSuffix(domain, d) {
+					hit = true
+				}
+			case consts.RoutingDomain_Full:
+				if strings.EqualFold(domain, d) {
+					hit = true
+				}
+			case consts.RoutingDomain_Keyword:
+				if strings.Contains(strings.ToLower(domain), strings.ToLower(d)) {
+					hit = true
+				}
+			case consts.RoutingDomain_Regex:
+				c.log.Warnln("MatchDomainBitmap does not support regex yet")
+			}
+			if hit {
+				bitmap[s.RuleIndex/32] |= 1 << (s.RuleIndex % 32)
+				break
+			}
+		}
+	}
+	return bitmap
+}

component/control/routing_matcher_builder.go

@@ -0,0 +1,133 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"fmt"
+	"foo/common"
+	"foo/common/consts"
+	"foo/component/routing"
+	"github.com/cilium/ebpf"
+	"net/netip"
+	"strconv"
+)
+
+type DomainSet struct {
+	Key       string
+	RuleIndex int
+	Domains   []string
+}
+type RoutingMatcherBuilder struct {
+	*routing.DefaultMatcherBuilder
+	outboundName2Id    map[string]uint8
+	bpf                *bpfObjects
+	rules              []bpfRouting
+	SimulatedLpmTries  [][]netip.Prefix
+	SimulatedDomainSet []DomainSet
+	Final              string
+
+	err error
+}
+
+func NewRoutingMatcherBuilder(outboundName2Id map[string]uint8, bpf *bpfObjects) *RoutingMatcherBuilder {
+	return &RoutingMatcherBuilder{outboundName2Id: outboundName2Id, bpf: bpf}
+}
+
+func (b *RoutingMatcherBuilder) OutboundToId(outbound string) uint8 {
+	var outboundId uint8
+	if outbound == routing.FakeOutbound_AND {
+		outboundId = uint8(consts.OutboundLogicalAnd)
+	} else {
+		var ok bool
+		outboundId, ok = b.outboundName2Id[outbound]
+		if !ok {
+			b.err = fmt.Errorf("%v not in outboundName2Id", strconv.Quote(outbound))
+		}
+	}
+	return outboundId
+}
+
+func (b *RoutingMatcherBuilder) AddDomain(key string, values []string, outbound string) {
+	if b.err != nil {
+		return
+	}
+	switch key {
+	case consts.RoutingDomain_Regex,
+		consts.RoutingDomain_Full,
+		consts.RoutingDomain_Keyword,
+		consts.RoutingDomain_Suffix:
+	default:
+		b.err = fmt.Errorf("AddDomain: unsupported key: %v", key)
+		return
+	}
+	b.SimulatedDomainSet = append(b.SimulatedDomainSet, DomainSet{
+		Key:       key,
+		RuleIndex: len(b.rules),
+		Domains:   values,
+	})
+	b.rules = append(b.rules, bpfRouting{
+		Type:     uint8(consts.RoutingType_DomainSet),
+		Outbound: b.OutboundToId(outbound),
+	})
+}
+
+func (b *RoutingMatcherBuilder) AddIp(values []netip.Prefix, outbound string) {
+	if b.err != nil {
+		return
+	}
+	lpmTrieIndex := len(b.SimulatedLpmTries)
+	b.SimulatedLpmTries = append(b.SimulatedLpmTries, values)
+	b.rules = append(b.rules, bpfRouting{
+		Type:     uint8(consts.RoutingType_IpSet),
+		Value:    uint32(lpmTrieIndex),
+		Outbound: b.OutboundToId(outbound),
+	})
+}
+
+func (b *RoutingMatcherBuilder) AddFinal(outbound string) {
+	b.Final = outbound
+	b.rules = append(b.rules, bpfRouting{
+		Type:     uint8(consts.RoutingType_Final),
+		Outbound: b.OutboundToId(outbound),
+	})
+}
+
+func (b *RoutingMatcherBuilder) Build() (err error) {
+	if b.err != nil {
+		return b.err
+	}
+	// Update lpm_array_map.
+	for i, cidrs := range b.SimulatedLpmTries {
+		var keys []bpfLpmKey
+		var values []uint32
+		for _, cidr := range cidrs {
+			keys = append(keys, cidrToBpfLpmKey(cidr))
+			values = append(values, 1)
+		}
+		m, err := b.bpf.NewLpmMap(keys, values)
+		if err != nil {
+			return fmt.Errorf("NewLpmMap: %w", err)
+		}
+		// ebpf.Map cannot be BatchUpdate
+		if err = b.bpf.LpmArrayMap.Update(uint32(i), m, ebpf.UpdateAny); err != nil {
+			m.Close()
+			return fmt.Errorf("Update: %w", err)
+		}
+		m.Close()
+	}
+	// Update routings.
+	routingsLen := uint32(len(b.rules))
+	routingsKeys := common.ARangeU32(routingsLen)
+	if _, err = b.bpf.RoutingMap.BatchUpdate(routingsKeys, b.rules, &ebpf.BatchOptions{
+		ElemFlags: uint64(ebpf.UpdateAny),
+	}); err != nil {
+		return fmt.Errorf("BatchUpdate: %w", err)
+	}
+	if err = b.bpf.ParamMap.Update(consts.RoutingsLenKey, routingsLen, ebpf.UpdateAny); err != nil {
+		return fmt.Errorf("Update: %w", err)
+	}
+	return nil
+}

component/control/tcp.go

@@ -0,0 +1,94 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"foo/common"
+	"foo/common/consts"
+	"golang.org/x/sys/unix"
+	"io"
+	"net"
+	"net/netip"
+	"time"
+)
+
+func (c *ControlPlane) handleConn(lConn net.Conn) (err error) {
+	defer lConn.Close()
+	rAddr := lConn.RemoteAddr().(*net.TCPAddr).AddrPort()
+	ip6 := rAddr.Addr().As16()
+
+	var value bpfIpPortOutbound
+	if err := c.bpf.DstMap.Lookup(bpfIpPortProto{
+		Ip:    common.Ipv6ByteSliceToUint32Array(ip6[:]),
+		Port:  swap16(rAddr.Port()),
+		Proto: unix.IPPROTO_TCP,
+	}, &value); err != nil {
+		return fmt.Errorf("reading map: key %v: %w", rAddr.String(), err)
+	}
+	var dstIP [4]byte
+	binary.LittleEndian.PutUint32(dstIP[:], value.Ip[3])
+	dst := netip.AddrPortFrom(netip.AddrFrom4(dstIP), swap16(value.Port))
+
+	switch consts.OutboundIndex(value.Outbound) {
+	case consts.OutboundDirect:
+	case consts.OutboundControlPlaneRoute:
+		// FIXME: check and re-route.
+		value.Outbound = uint8(consts.OutboundDirect)
+		c.log.Debugf("outbound: %v => %v",
+			consts.OutboundControlPlaneRoute.String(),
+			consts.OutboundIndex(value.Outbound).String(),
+		)
+	default:
+	}
+	outbound := c.outbounds[value.Outbound]
+	// TODO: Set-up ip to domain mapping and show domain if possible.
+	c.log.Infof("TCP: %v <-[%v]-> %v", lConn.RemoteAddr(), outbound.Name, dst.String())
+	if value.Outbound < 0 || int(value.Outbound) >= len(c.outbounds) {
+		return fmt.Errorf("outbound id from bpf is out of range: %v not in [0, %v]", value.Outbound, len(c.outbounds)-1)
+	}
+	rConn, err := outbound.Dial("tcp", dst.String())
+	if err != nil {
+		return fmt.Errorf("failed to dial %v: %w", dst, err)
+	}
+	defer rConn.Close()
+	if err = RelayTCP(lConn, rConn); err != nil {
+		var netErr net.Error
+		if errors.As(err, &netErr) && netErr.Timeout() {
+			return nil // ignore i/o timeout
+		}
+		return fmt.Errorf("handleTCP relay error: %w", err)
+	}
+	return nil
+}
+
+type WriteCloser interface {
+	CloseWrite() error
+}
+
+func RelayTCP(lConn, rConn net.Conn) (err error) {
+	eCh := make(chan error, 1)
+	go func() {
+		_, e := io.Copy(rConn, lConn)
+		if rConn, ok := rConn.(WriteCloser); ok {
+			rConn.CloseWrite()
+		}
+		rConn.SetReadDeadline(time.Now().Add(10 * time.Second))
+		eCh <- e
+	}()
+	_, e := io.Copy(lConn, rConn)
+	if lConn, ok := lConn.(WriteCloser); ok {
+		lConn.CloseWrite()
+	}
+	lConn.SetReadDeadline(time.Now().Add(10 * time.Second))
+	if e != nil {
+		<-eCh
+		return e
+	}
+	return <-eCh
+}

component/control/udp.go

@@ -0,0 +1,145 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"encoding/binary"
+	"fmt"
+	"foo/common/consts"
+	"foo/pkg/pool"
+	"golang.org/x/net/dns/dnsmessage"
+	"net"
+	"net/netip"
+	"time"
+)
+
+const (
+	DefaultNatTimeout = 3 * time.Minute
+	DnsNatTimeout     = 17 * time.Second // RFC 5452
+)
+
+func ChooseNatTimeout(data []byte) (dmsg *dnsmessage.Message, timeout time.Duration) {
+	var dnsmsg dnsmessage.Message
+	if err := dnsmsg.Unpack(data); err == nil {
+		//log.Printf("DEBUG: lookup %v", dnsmsg.Questions[0].Name)
+		return &dnsmsg, DnsNatTimeout
+	}
+	return nil, DefaultNatTimeout
+}
+
+type AddrHdr struct {
+	Dest     netip.AddrPort
+	Outbound uint8
+}
+
+func ParseAddrHdr(data []byte) (hdr *AddrHdr, dataOffset int, err error) {
+	ipSize := 16
+	dataOffset = consts.AddrHdrSize
+	if len(data) < dataOffset {
+		return nil, 0, fmt.Errorf("data is too short to parse AddrHdr")
+	}
+	destAddr, _ := netip.AddrFromSlice(data[:ipSize])
+	port := binary.BigEndian.Uint16(data[ipSize:])
+	outbound := data[ipSize+2]
+	return &AddrHdr{
+		Dest:     netip.AddrPortFrom(destAddr, port),
+		Outbound: outbound,
+	}, dataOffset, nil
+}
+
+func (hdr *AddrHdr) ToBytesFromPool() []byte {
+	ipSize := 16
+	buf := pool.GetZero(consts.AddrHdrSize) // byte align to a multiple of 4
+	ip := hdr.Dest.Addr().As16()
+	copy(buf, ip[:])
+	binary.BigEndian.PutUint16(buf[ipSize:], hdr.Dest.Port())
+	buf[ipSize+2] = hdr.Outbound
+	return buf
+}
+
+func sendPktWithHdr(data []byte, from netip.AddrPort, lConn *net.UDPConn, to netip.AddrPort) error {
+	hdr := AddrHdr{
+		Dest:     from,
+		Outbound: 0, // Do not care.
+	}
+	bHdr := hdr.ToBytesFromPool()
+	defer pool.Put(bHdr)
+	buf := pool.Get(len(bHdr) + len(data))
+	defer pool.Put(buf)
+	copy(buf, bHdr)
+	copy(buf[len(bHdr):], data)
+	//log.Println("from", from, "to", to)
+	_, err := lConn.WriteToUDPAddrPort(buf, to)
+	return err
+}
+
+func (c *ControlPlane) RelayToUDP(lConn *net.UDPConn, to netip.AddrPort, isDNS bool) UdpHandler {
+	return func(data []byte, from netip.AddrPort) (err error) {
+		if isDNS {
+			data, err = c.DnsRespHandler(data)
+			if err != nil {
+				c.log.Warnf("DnsRespHandler: %v", err)
+			}
+		}
+		return sendPktWithHdr(data, from, lConn, to)
+	}
+}
+
+func (c *ControlPlane) handlePkt(data []byte, lConn *net.UDPConn, lAddrPort netip.AddrPort, addrHdr *AddrHdr) (err error) {
+	switch consts.OutboundIndex(addrHdr.Outbound) {
+	case consts.OutboundDirect:
+	case consts.OutboundControlPlaneRoute:
+		// FIXME: check and re-route.
+		addrHdr.Outbound = uint8(consts.OutboundDirect)
+
+		c.log.Debugf("outbound: %v => %v",
+			consts.OutboundControlPlaneRoute.String(),
+			consts.OutboundIndex(addrHdr.Outbound).String(),
+		)
+	default:
+	}
+	outbound := c.outbounds[addrHdr.Outbound]
+	dnsMessage, natTimeout := ChooseNatTimeout(data)
+	// We should cache DNS records and set record TTL to 0, in order to monitor the dns req and resp in real time.
+	isDns := dnsMessage != nil
+	if isDns {
+		if resp := c.LookupDnsRespCache(dnsMessage); resp != nil {
+			if err = sendPktWithHdr(resp, addrHdr.Dest, lConn, lAddrPort); err != nil {
+				return fmt.Errorf("failed to write cached DNS resp: %w", err)
+			}
+			q := dnsMessage.Questions[0]
+			c.log.Debugf("UDP(DNS) %v <-[%v]-> Cache: %v %v",
+				lAddrPort.String(), outbound.Name, q.Name, q.Type,
+			)
+			return nil
+		} else {
+			q := dnsMessage.Questions[0]
+			c.log.Debugf("UDP(DNS) %v <-[%v]-> %v: %v %v",
+				lAddrPort.String(), outbound.Name, addrHdr.Dest.String(), q.Name, q.Type,
+			)
+		}
+	} else {
+		// TODO: Set-up ip to domain mapping and show domain if possible.
+		c.log.Infof("UDP %v <-[%v]-> %v",
+			lAddrPort.String(), outbound.Name, addrHdr.Dest.String(),
+		)
+	}
+	ue, err := DefaultUdpEndpointPool.GetOrCreate(lAddrPort, &UdpEndpointOptions{
+		Handler:    c.RelayToUDP(lConn, lAddrPort, isDns),
+		NatTimeout: natTimeout,
+		Dialer:     outbound,
+		Target:     addrHdr.Dest,
+	})
+	if err != nil {
+		return fmt.Errorf("failed to GetOrCreate: %w", err)
+	}
+	//log.Printf("WriteToUDPAddrPort->%v", dest)
+	_, err = ue.WriteToUDPAddrPort(data, addrHdr.Dest)
+	if err != nil {
+		return fmt.Errorf("failed to write UDP packet req: %w", err)
+	}
+	return nil
+}

component/control/udp_endpoint.go

@@ -0,0 +1,127 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"fmt"
+	"foo/pkg/pool"
+	"golang.org/x/net/proxy"
+	"net"
+	"net/netip"
+	"sync"
+	"time"
+)
+
+type UdpHandler func(data []byte, from netip.AddrPort) error
+
+type UdpEndpoint struct {
+	conn net.PacketConn
+	// mu protects deadlineTimer
+	mu            sync.Mutex
+	deadlineTimer *time.Timer
+	handler       UdpHandler
+	NatTimeout    time.Duration
+}
+
+func (ue *UdpEndpoint) start() {
+	buf := pool.Get(0xffff)
+	defer pool.Put(buf)
+	for {
+		n, from, err := ue.conn.ReadFrom(buf[:])
+		if err != nil {
+			break
+		}
+		ue.mu.Lock()
+		ue.deadlineTimer.Reset(ue.NatTimeout)
+		ue.mu.Unlock()
+		if err = ue.handler(buf[:n], from.(*net.UDPAddr).AddrPort()); err != nil {
+			break
+		}
+	}
+	ue.mu.Lock()
+	ue.deadlineTimer.Stop()
+	ue.mu.Unlock()
+}
+
+func (ue *UdpEndpoint) WriteToUDPAddrPort(b []byte, addr netip.AddrPort) (int, error) {
+	return ue.conn.WriteTo(b, net.UDPAddrFromAddrPort(addr))
+}
+
+func (ue *UdpEndpoint) Close() error {
+	ue.mu.Lock()
+	if ue.deadlineTimer != nil {
+		ue.deadlineTimer.Stop()
+	}
+	ue.mu.Unlock()
+	return ue.conn.Close()
+}
+
+// UdpEndpointPool is a full-cone udp conn pool
+type UdpEndpointPool struct {
+	pool map[netip.AddrPort]*UdpEndpoint
+	mu   sync.Mutex
+}
+type UdpEndpointOptions struct {
+	Handler    UdpHandler
+	NatTimeout time.Duration
+	Dialer     proxy.Dialer
+	// Target is useful only if the underlay does not support Full-cone.
+	Target netip.AddrPort
+}
+
+var DefaultUdpEndpointPool = NewUdpEndpointPool()
+
+func NewUdpEndpointPool() *UdpEndpointPool {
+	return &UdpEndpointPool{
+		pool: make(map[netip.AddrPort]*UdpEndpoint),
+	}
+}
+
+func (p *UdpEndpointPool) GetOrCreate(lAddr netip.AddrPort, createOption *UdpEndpointOptions) (udpEndpoint *UdpEndpoint, err error) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	ue, ok := p.pool[lAddr]
+	if !ok {
+		// Create an UdpEndpoint.
+		if createOption == nil {
+			createOption = &UdpEndpointOptions{}
+		}
+		if createOption.NatTimeout == 0 {
+			createOption.NatTimeout = DefaultNatTimeout
+		}
+		if createOption.Handler == nil {
+			return nil, fmt.Errorf("createOption.Handler cannot be nil")
+		}
+
+		udpConn, err := createOption.Dialer.Dial("udp", createOption.Target.String())
+		//udpConn, err := net.ListenUDP("udp", nil)
+		if err != nil {
+			return nil, err
+		}
+		p.pool[lAddr] = &UdpEndpoint{
+			conn: udpConn.(net.PacketConn),
+			deadlineTimer: time.AfterFunc(createOption.NatTimeout, func() {
+				p.mu.Lock()
+				defer p.mu.Unlock()
+				if ue, ok := p.pool[lAddr]; ok {
+					ue.Close()
+					delete(p.pool, lAddr)
+				}
+			}),
+			handler:    createOption.Handler,
+			NatTimeout: createOption.NatTimeout,
+		}
+		ue = p.pool[lAddr]
+		// Receive UDP messages.
+		go ue.start()
+	} else {
+		// Postpone the deadline.
+		ue.mu.Lock()
+		ue.deadlineTimer.Reset(ue.NatTimeout)
+		ue.mu.Unlock()
+	}
+	return ue, nil
+}

component/control/utils.go

@@ -0,0 +1,46 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package control
+
+import (
+	"foo/common"
+	"github.com/cilium/ebpf"
+	"net/netip"
+)
+
+type bpfLpmKey struct {
+	PrefixLen uint32
+	Data      [4]uint32
+}
+
+func (o *bpfObjects) NewLpmMap(keys []bpfLpmKey, values []uint32) (m *ebpf.Map, err error) {
+	m, err = o.UnusedLpmType.Clone()
+	if err != nil {
+		return nil, err
+	}
+	if _, err = m.BatchUpdate(keys, values, &ebpf.BatchOptions{
+		ElemFlags: uint64(ebpf.UpdateAny),
+	}); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+func swap16(a uint16) uint16 {
+	return (a >> 8) + ((a & 0xFF) << 8)
+}
+
+func cidrToBpfLpmKey(prefix netip.Prefix) bpfLpmKey {
+	bits := prefix.Bits()
+	ip := prefix.Addr().As16()
+	if prefix.Addr().Is4() {
+		bits += 96
+	}
+	return bpfLpmKey{
+		PrefixLen: uint32(bits),
+		Data:      common.Ipv6ByteSliceToUint32Array(ip[:]),
+	}
+}

component/outbound/dialer/alive_dialer_set.go

@@ -0,0 +1,154 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package dialer
+
+import (
+	"foo/common/consts"
+	"github.com/mzz2017/softwind/pkg/fastrand"
+	"github.com/sirupsen/logrus"
+	"sync"
+	"time"
+)
+
+type minLatency struct {
+	latency time.Duration
+	dialer  *Dialer
+}
+
+// AliveDialerSet assumes mapping between index and dialer MUST remain unchanged.
+//
+// It is thread-safe.
+type AliveDialerSet struct {
+	log *logrus.Logger
+
+	mu                      sync.Mutex
+	dialerToIndex           map[*Dialer]int // *Dialer -> index of inorderedAliveDialerSet
+	dialerToLatency         map[*Dialer]time.Duration
+	inorderedAliveDialerSet []*Dialer
+
+	selectionPolicy consts.DialerSelectionPolicy
+	minLatency      minLatency
+}
+
+func NewAliveDialerSet(
+	log *logrus.Logger,
+	selectionPolicy consts.DialerSelectionPolicy,
+	dialers []*Dialer,
+	setAlive bool,
+) *AliveDialerSet {
+	a := &AliveDialerSet{
+		log:                     log,
+		dialerToIndex:           make(map[*Dialer]int),
+		dialerToLatency:         make(map[*Dialer]time.Duration),
+		inorderedAliveDialerSet: make([]*Dialer, 0, len(dialers)),
+		selectionPolicy:         selectionPolicy,
+		minLatency: minLatency{
+			// Initiate the latency with a very big value.
+			latency: time.Hour,
+		},
+	}
+	if setAlive && len(dialers) > 0 {
+		// Use first dialer if no dialer has alive state.
+		a.minLatency.dialer = dialers[0]
+	}
+	for _, d := range dialers {
+		a.dialerToIndex[d] = -1
+	}
+	for _, d := range dialers {
+		a.SetAlive(d, setAlive)
+	}
+	return a
+}
+
+func (a *AliveDialerSet) GetRand() *Dialer {
+	a.mu.Lock()
+	defer a.mu.Unlock()
+	if len(a.inorderedAliveDialerSet) == 0 {
+		return nil
+	}
+	ind := fastrand.Intn(len(a.inorderedAliveDialerSet))
+	return a.inorderedAliveDialerSet[ind]
+}
+
+// GetMinLatency acquires correct selectionPolicy.
+func (a *AliveDialerSet) GetMinLatency() *Dialer {
+	return a.minLatency.dialer
+}
+
+// SetAlive should be invoked when dialer every time latency and alive state changes.
+func (a *AliveDialerSet) SetAlive(dialer *Dialer, alive bool) {
+	a.mu.Lock()
+	defer a.mu.Unlock()
+	var (
+		latency    time.Duration
+		hasLatency bool
+	)
+
+	switch a.selectionPolicy {
+	case consts.DialerSelectionPolicy_MinLastLatency:
+		latency, hasLatency = dialer.Latencies10.LastLatency()
+	case consts.DialerSelectionPolicy_MinAverage10Latencies:
+		latency, hasLatency = dialer.Latencies10.AvgLatency()
+	}
+
+	if alive {
+		index := a.dialerToIndex[dialer]
+		if index >= 0 {
+			// This dialer is already alive.
+		} else {
+			// Not alive -> alive.
+			a.dialerToIndex[dialer] = len(a.inorderedAliveDialerSet)
+			a.inorderedAliveDialerSet = append(a.inorderedAliveDialerSet, dialer)
+		}
+	} else {
+		index := a.dialerToIndex[dialer]
+		if index >= 0 {
+			// Alive -> not alive.
+			// Remove the dialer from inorderedAliveDialerSet.
+			if index >= len(a.inorderedAliveDialerSet) {
+				a.log.Panicf("index:%v >= len(a.inorderedAliveDialerSet):%v", index, len(a.inorderedAliveDialerSet))
+			}
+			a.dialerToIndex[dialer] = -1
+			if index < len(a.inorderedAliveDialerSet)-1 {
+				// Swap this element with the last element.
+				dialerToSwap := a.inorderedAliveDialerSet[len(a.inorderedAliveDialerSet)-1]
+				if dialer == dialerToSwap {
+					a.log.Panicf("dialer[%p] == dialerToSwap[%p]", dialer, dialerToSwap)
+				}
+
+				a.dialerToIndex[dialerToSwap] = index
+				a.inorderedAliveDialerSet[index], a.inorderedAliveDialerSet[len(a.inorderedAliveDialerSet)-1] =
+					a.inorderedAliveDialerSet[len(a.inorderedAliveDialerSet)-1], a.inorderedAliveDialerSet[index]
+			}
+			// Pop the last element.
+			a.inorderedAliveDialerSet = a.inorderedAliveDialerSet[:len(a.inorderedAliveDialerSet)-1]
+		} else {
+			// This dialer is already not alive.
+		}
+	}
+
+	if hasLatency {
+		a.dialerToLatency[dialer] = latency
+		if latency < a.minLatency.latency {
+			a.minLatency.latency = latency
+			a.minLatency.dialer = dialer
+		} else if a.minLatency.dialer == dialer {
+			a.minLatency.latency = time.Hour
+			a.minLatency.dialer = nil
+			a.calcMinLatency()
+		}
+	}
+}
+
+func (a *AliveDialerSet) calcMinLatency() {
+	for _, d := range a.inorderedAliveDialerSet {
+		latency := a.dialerToLatency[d]
+		if latency < a.minLatency.latency {
+			a.minLatency.latency = latency
+			a.minLatency.dialer = d
+		}
+	}
+}

component/outbound/dialer/context_dialer.go

@@ -0,0 +1,39 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package dialer
+
+import (
+	"context"
+	"golang.org/x/net/proxy"
+	"net"
+)
+
+type ContextDialer struct {
+	Dialer proxy.Dialer
+}
+
+func (d *ContextDialer) DialContext(ctx context.Context, network, addr string) (c net.Conn, err error) {
+	var done = make(chan struct{})
+	go func() {
+		c, err = d.Dialer.Dial(network, addr)
+		if err != nil {
+			close(done)
+			return
+		}
+		select {
+		case <-ctx.Done():
+			_ = c.Close()
+		default:
+			close(done)
+		}
+	}()
+	select {
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	case <-done:
+		return c, err
+	}
+}

component/outbound/dialer/dialer.go

@@ -0,0 +1,179 @@
+package dialer
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"foo/common/consts"
+	"github.com/mzz2017/softwind/pkg/fastrand"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/net/proxy"
+	"net"
+	"net/http"
+	"path"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+var (
+	ConnectivityTestFailedErr = fmt.Errorf("connectivity test failed")
+	UnexpectedFieldErr        = fmt.Errorf("unexpected field")
+	InvalidParameterErr       = fmt.Errorf("invalid parameters")
+)
+
+type Dialer struct {
+	proxy.Dialer
+	supportUDP bool
+	name       string
+	protocol   string
+	link       string
+
+	Latencies10         *LatenciesN
+	aliveDialerSetSetMu sync.Mutex
+	// aliveDialerSetSet uses reference counting.
+	aliveDialerSetSet map[*AliveDialerSet]int
+
+	tickerMu sync.Mutex
+	ticker   *time.Ticker
+}
+
+// NewDialer is for register in general.
+func NewDialer(dialer proxy.Dialer, supportUDP bool, name string, protocol string, link string) *Dialer {
+	d := newDialer(dialer, supportUDP, name, protocol, link)
+	go d.aliveBackground()
+	return d
+}
+
+// newDialer does not run background tasks.
+func newDialer(dialer proxy.Dialer, supportUDP bool, name string, protocol string, link string) *Dialer {
+	d := &Dialer{
+		Dialer:      dialer,
+		supportUDP:  supportUDP,
+		name:        name,
+		protocol:    protocol,
+		link:        link,
+		Latencies10: NewLatenciesN(10),
+		// Set a very big cycle to wait for init.
+		ticker:            time.NewTicker(time.Hour),
+		aliveDialerSetSet: make(map[*AliveDialerSet]int),
+	}
+	return d
+}
+
+func (d *Dialer) aliveBackground() {
+	timeout := 10 * time.Second
+	cycle := 15 * time.Second
+	// Test once immediately.
+	go d.Test(timeout, consts.TestUrl)
+
+	// Sleep to avoid avalanche.
+	time.Sleep(time.Duration(fastrand.Int63n(int64(cycle))))
+	d.tickerMu.Lock()
+	d.ticker.Reset(cycle)
+	d.tickerMu.Unlock()
+	for range d.ticker.C {
+		// No need to test if there is no dialer selection policy using its latency.
+		if len(d.aliveDialerSetSet) > 0 {
+			d.Test(timeout, consts.TestUrl)
+		}
+	}
+}
+
+func (d *Dialer) Close() error {
+	d.tickerMu.Lock()
+	d.ticker.Stop()
+	d.tickerMu.Unlock()
+	return nil
+}
+
+// RegisterAliveDialerSet is thread-safe.
+func (d *Dialer) RegisterAliveDialerSet(a *AliveDialerSet) {
+	d.aliveDialerSetSetMu.Lock()
+	d.aliveDialerSetSet[a]++
+	d.aliveDialerSetSetMu.Unlock()
+}
+
+// UnregisterAliveDialerSet is thread-safe.
+func (d *Dialer) UnregisterAliveDialerSet(a *AliveDialerSet) {
+	d.aliveDialerSetSetMu.Lock()
+	defer d.aliveDialerSetSetMu.Unlock()
+	d.aliveDialerSetSet[a]--
+	if d.aliveDialerSetSet[a] <= 0 {
+		delete(d.aliveDialerSetSet, a)
+	}
+}
+
+func (d *Dialer) SupportUDP() bool {
+	return d.supportUDP
+}
+
+func (d *Dialer) Name() string {
+	return d.name
+}
+
+func (d *Dialer) Protocol() string {
+	return d.protocol
+}
+
+func (d *Dialer) Link() string {
+	return d.link
+}
+
+func (d *Dialer) Test(timeout time.Duration, url string) (ok bool, err error) {
+	ctx, cancel := context.WithTimeout(context.TODO(), timeout)
+	defer cancel()
+	start := time.Now()
+	// Calc latency.
+	defer func() {
+		var alive bool
+		if ok && err == nil {
+			// No error.
+			latency := time.Since(start)
+			// FIXME: Use log instead of logrus.
+			logrus.Debugf("Connectivity Test: %v: %v", d.name, latency)
+			d.Latencies10.AppendLatency(latency)
+			alive = true
+		} else {
+			// Append timeout if there is any error or unexpected status code.
+			if err != nil {
+				logrus.Debugf("Test [%v]: %v", d.name, err.Error())
+			}
+			d.Latencies10.AppendLatency(timeout)
+		}
+		// Inform DialerGroups to update state.
+		d.aliveDialerSetSetMu.Lock()
+		for a := range d.aliveDialerSetSet {
+			a.SetAlive(d, alive)
+		}
+		d.aliveDialerSetSetMu.Unlock()
+	}()
+
+	// HTTP(S) test.
+	cd := ContextDialer{d.Dialer}
+	cli := http.Client{
+		Transport: &http.Transport{
+			DialContext: cd.DialContext,
+		},
+		Timeout: timeout,
+	}
+	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+	if err != nil {
+		return false, fmt.Errorf("%v: %w", ConnectivityTestFailedErr, err)
+	}
+	resp, err := cli.Do(req)
+	if err != nil {
+		var netErr net.Error
+		if errors.As(err, &netErr); netErr.Timeout() {
+			err = fmt.Errorf("timeout")
+		}
+		return false, fmt.Errorf("%v: %w", ConnectivityTestFailedErr, err)
+	}
+	defer resp.Body.Close()
+	// Judge the status code.
+	if page := path.Base(req.URL.Path); strings.HasPrefix(page, "generate_") {
+		return strconv.Itoa(resp.StatusCode) == strings.TrimPrefix(page, "generate_"), nil
+	}
+	return resp.StatusCode >= 200 && resp.StatusCode < 400, nil
+}

component/outbound/dialer/direct.go

@@ -0,0 +1,76 @@
+package dialer
+
+import (
+	"golang.org/x/net/proxy"
+	"net"
+)
+
+var SymmetricDirect = NewDirect(false)
+var FullconeDirect = NewDirect(true)
+
+var SymmetricDirectDialer = newDialer(SymmetricDirect, true, "direct", "direct", "")
+var FullconeDirectDialer = newDialer(FullconeDirect, true, "direct", "direct", "")
+
+type direct struct {
+	proxy.Dialer
+	netDialer net.Dialer
+	fullCone  bool
+}
+
+func NewDirect(fullCone bool) proxy.Dialer {
+	return &direct{
+		netDialer: net.Dialer{},
+		fullCone:  fullCone,
+	}
+}
+
+func (d *direct) Dial(network, addr string) (c net.Conn, err error) {
+	switch network {
+	case "tcp":
+		return d.netDialer.Dial(network, addr)
+	case "udp":
+		if d.fullCone {
+			conn, err := net.ListenUDP(network, nil)
+			if err != nil {
+				return nil, err
+			}
+			return &directUDPConn{UDPConn: conn, FullCone: true}, nil
+		} else {
+			conn, err := d.netDialer.Dial(network, addr)
+			if err != nil {
+				return nil, err
+			}
+			return &directUDPConn{UDPConn: conn.(*net.UDPConn), FullCone: false}, nil
+		}
+	default:
+		return nil, net.UnknownNetworkError(network)
+	}
+}
+
+type directUDPConn struct {
+	*net.UDPConn
+	FullCone bool
+}
+
+func (c *directUDPConn) WriteTo(b []byte, addr net.Addr) (int, error) {
+	if !c.FullCone {
+		// FIXME: check the addr
+		return c.Write(b)
+	}
+	return c.UDPConn.WriteTo(b, addr)
+}
+
+func (c *directUDPConn) WriteMsgUDP(b, oob []byte, addr *net.UDPAddr) (n, oobn int, err error) {
+	if !c.FullCone {
+		n, err = c.Write(b)
+		return n, 0, err
+	}
+	return c.UDPConn.WriteMsgUDP(b, oob, addr)
+}
+
+func (c *directUDPConn) WriteToUDP(b []byte, addr *net.UDPAddr) (int, error) {
+	if !c.FullCone {
+		return c.Write(b)
+	}
+	return c.UDPConn.WriteToUDP(b, addr)
+}

component/outbound/dialer/http/http.go

@@ -0,0 +1,138 @@
+package http
+
+import (
+	"fmt"
+	"foo/component/outbound/dialer"
+	"github.com/mzz2017/softwind/protocol/http"
+	"gopkg.in/yaml.v3"
+	"net"
+	"net/url"
+	"strconv"
+)
+
+func init() {
+	dialer.FromLinkRegister("http", NewHTTP)
+	dialer.FromLinkRegister("https", NewHTTP)
+	dialer.FromClashRegister("http", NewSocks5FromClashObj)
+}
+
+type HTTP struct {
+	Name     string `json:"name"`
+	Server   string `json:"server"`
+	Port     int    `json:"port"`
+	Username string `json:"username"`
+	Password string `json:"password"`
+	SNI      string `json:"sni"`
+	Protocol string `json:"protocol"`
+}
+
+func NewHTTP(link string) (*dialer.Dialer, error) {
+	s, err := ParseHTTPURL(link)
+	if err != nil {
+		return nil, fmt.Errorf("%w: %v", dialer.InvalidParameterErr, err)
+	}
+	return s.Dialer()
+}
+
+func NewSocks5FromClashObj(o *yaml.Node) (*dialer.Dialer, error) {
+	s, err := ParseClash(o)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func ParseHTTPURL(link string) (data *HTTP, err error) {
+	u, err := url.Parse(link)
+	if err != nil || (u.Scheme != "http" && u.Scheme != "https") {
+		return nil, fmt.Errorf("%w: %v", dialer.InvalidParameterErr, err)
+	}
+	pwd, _ := u.User.Password()
+	strPort := u.Port()
+	if strPort == "" {
+		if u.Scheme == "http" {
+			strPort = "80"
+		} else if u.Scheme == "https" {
+			strPort = "443"
+		}
+	}
+	port, err := strconv.Atoi(strPort)
+	if err != nil {
+		return nil, fmt.Errorf("error when parsing port: %w", err)
+	}
+	return &HTTP{
+		Name:     u.Fragment,
+		Server:   u.Hostname(),
+		Port:     port,
+		Username: u.User.Username(),
+		Password: pwd,
+		SNI:      u.Query().Get("sni"),
+		Protocol: u.Scheme,
+	}, nil
+}
+
+func ParseClash(o *yaml.Node) (data *HTTP, err error) {
+	type HttpOption struct {
+		Name           string `yaml:"name"`
+		Server         string `yaml:"server"`
+		Port           int    `yaml:"port"`
+		UserName       string `yaml:"username,omitempty"`
+		Password       string `yaml:"password,omitempty"`
+		TLS            bool   `yaml:"tls,omitempty"`
+		SNI            string `yaml:"sni,omitempty"`
+		SkipCertVerify bool   `yaml:"skip-cert-verify,omitempty"`
+	}
+	var option HttpOption
+	if err = o.Decode(&option); err != nil {
+		return nil, err
+	}
+	scheme := "http"
+	if option.TLS {
+		scheme = "https"
+	}
+	if option.SkipCertVerify {
+		return nil, fmt.Errorf("%w: skip-cert-verify=true", dialer.UnexpectedFieldErr)
+	}
+	return &HTTP{
+		Name:     option.Name,
+		Server:   option.Server,
+		Port:     option.Port,
+		Username: option.UserName,
+		Password: option.Password,
+		SNI:      option.SNI,
+		Protocol: scheme,
+	}, nil
+}
+
+func (s *HTTP) Dialer() (*dialer.Dialer, error) {
+	u := s.URL()
+	d, err := http.NewHTTPProxy(&u, dialer.SymmetricDirect)
+	if err != nil {
+		return nil, err
+	}
+	return dialer.NewDialer(d, false, s.Name, s.Protocol, u.String()), nil
+}
+
+func (s *HTTP) URL() url.URL {
+	u := url.URL{
+		Scheme:   s.Protocol,
+		Host:     net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		Fragment: s.Name,
+	}
+	if s.SNI != "" {
+		u.RawQuery = url.Values{"sni": []string{s.SNI}}.Encode()
+	}
+	if s.Username != "" {
+		if s.Password != "" {
+			u.User = url.UserPassword(s.Username, s.Password)
+		} else {
+			u.User = url.User(s.Username)
+		}
+	}
+	return u
+}
+
+func (s *HTTP) ExportToURL() string {
+	u := s.URL()
+	return u.String()
+}

component/outbound/dialer/latencies_n.go

@@ -0,0 +1,61 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package dialer
+
+import (
+	"container/list"
+	"sync"
+	"time"
+)
+
+type LatenciesN struct {
+	N              int
+	LastNLatencies *list.List
+	SumNLatencies  time.Duration
+
+	mu sync.Mutex
+}
+
+func NewLatenciesN(n int) *LatenciesN {
+	return &LatenciesN{
+		N:              n,
+		LastNLatencies: list.New(),
+		SumNLatencies:  0,
+	}
+}
+
+// AppendLatency appends a new latency to the back and keep the number in the list. Appending a fixed duration for
+// failed or timeout situation is recommended.
+//
+// It is thread-safe.
+func (ln *LatenciesN) AppendLatency(l time.Duration) {
+	ln.mu.Lock()
+	defer ln.mu.Unlock()
+	if ln.LastNLatencies.Len() >= ln.N {
+		ln.SumNLatencies -= ln.LastNLatencies.Front().Value.(time.Duration)
+		ln.LastNLatencies.Remove(ln.LastNLatencies.Front())
+	}
+	ln.SumNLatencies += l
+	ln.LastNLatencies.PushBack(l)
+}
+
+func (ln *LatenciesN) LastLatency() (time.Duration, bool) {
+	ln.mu.Lock()
+	defer ln.mu.Unlock()
+	if ln.LastNLatencies.Len() == 0 {
+		return 0, false
+	}
+	return ln.LastNLatencies.Back().Value.(time.Duration), true
+}
+
+func (ln *LatenciesN) AvgLatency() (time.Duration, bool) {
+	ln.mu.Lock()
+	defer ln.mu.Unlock()
+	if ln.LastNLatencies.Len() == 0 {
+		return 0, false
+	}
+	return ln.SumNLatencies / time.Duration(ln.LastNLatencies.Len()), true
+}

component/outbound/dialer/register.go

@@ -0,0 +1,53 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package dialer
+
+import (
+	"fmt"
+	"gopkg.in/yaml.v3"
+	"net/url"
+)
+
+type FromLinkCreator func(link string) (dialer *Dialer, err error)
+
+var fromLinkCreators = make(map[string]FromLinkCreator)
+
+func FromLinkRegister(name string, creator FromLinkCreator) {
+	fromLinkCreators[name] = creator
+}
+
+func NewFromLink(link string) (dialer *Dialer, err error) {
+	u, err := url.Parse(link)
+	if err != nil {
+		return nil, err
+	}
+	if creator, ok := fromLinkCreators[u.Scheme]; ok {
+		return creator(link)
+	} else {
+		return nil, fmt.Errorf("unexpected link type: %v", u.Scheme)
+	}
+}
+
+type FromClashCreator func(clashObj *yaml.Node) (dialer *Dialer, err error)
+
+var fromClashCreators = make(map[string]FromClashCreator)
+
+func FromClashRegister(name string, creator FromClashCreator) {
+	fromClashCreators[name] = creator
+}
+
+func NewFromClash(clashObj *yaml.Node) (dialer *Dialer, err error) {
+	preUnload := make(map[string]interface{})
+	if err := clashObj.Decode(&preUnload); err != nil {
+		return nil, err
+	}
+	name, _ := preUnload["type"].(string)
+	if creator, ok := fromClashCreators[name]; ok {
+		return creator(clashObj)
+	} else {
+		return nil, fmt.Errorf("unexpected link type: %v", name)
+	}
+}

component/outbound/dialer/shadowsocks/shadowsocks.go

@@ -0,0 +1,279 @@
+package shadowsocks
+
+import (
+	"encoding/base64"
+	"fmt"
+	"foo/common"
+	"foo/component/outbound/dialer"
+	"foo/component/outbound/dialer/transport/simpleobfs"
+	"github.com/mzz2017/softwind/protocol"
+	"github.com/mzz2017/softwind/protocol/shadowsocks"
+	"gopkg.in/yaml.v3"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+func init() {
+	// Use random salt by default to decrease the boot time
+	shadowsocks.DefaultSaltGeneratorType = shadowsocks.RandomSaltGeneratorType
+
+	dialer.FromLinkRegister("shadowsocks", NewShadowsocksFromLink)
+	dialer.FromLinkRegister("ss", NewShadowsocksFromLink)
+	dialer.FromClashRegister("ss", NewShadowsocksFromClashObj)
+}
+
+type Shadowsocks struct {
+	Name     string `json:"name"`
+	Server   string `json:"server"`
+	Port     int    `json:"port"`
+	Password string `json:"password"`
+	Cipher   string `json:"cipher"`
+	Plugin   Sip003 `json:"plugin"`
+	UDP      bool   `json:"udp"`
+	Protocol string `json:"protocol"`
+}
+
+func NewShadowsocksFromLink(link string) (*dialer.Dialer, error) {
+	s, err := ParseSSURL(link)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func NewShadowsocksFromClashObj(o *yaml.Node) (*dialer.Dialer, error) {
+	s, err := ParseClash(o)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func (s *Shadowsocks) Dialer() (*dialer.Dialer, error) {
+	// FIXME: support plain/none.
+	switch s.Cipher {
+	case "aes-256-gcm", "aes-128-gcm", "chacha20-poly1305", "chacha20-ietf-poly1305":
+	default:
+		return nil, fmt.Errorf("unsupported shadowsocks encryption method: %v", s.Cipher)
+	}
+	supportUDP := s.UDP
+	d := dialer.SymmetricDirect
+	d, err := protocol.NewDialer("shadowsocks", d, protocol.Header{
+		ProxyAddress: net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		Cipher:       s.Cipher,
+		Password:     s.Password,
+		IsClient:     true,
+	})
+	if err != nil {
+		return nil, err
+	}
+	switch s.Plugin.Name {
+	case "simple-obfs":
+		uSimpleObfs := url.URL{
+			Scheme: "simple-obfs",
+			Host:   net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+			RawQuery: url.Values{
+				"obfs": []string{s.Plugin.Opts.Obfs},
+				"host": []string{s.Plugin.Opts.Host},
+				"uri":  []string{s.Plugin.Opts.Path},
+			}.Encode(),
+		}
+		d, err = simpleobfs.NewSimpleObfs(uSimpleObfs.String(), d)
+		if err != nil {
+			return nil, err
+		}
+		supportUDP = false
+	}
+	return dialer.NewDialer(d, supportUDP, s.Name, s.Protocol, s.ExportToURL()), nil
+}
+
+func ParseClash(o *yaml.Node) (data *Shadowsocks, err error) {
+	type simpleObfsOption struct {
+		Mode string `obfs:"mode,omitempty"`
+		Host string `obfs:"host,omitempty"`
+	}
+	type ShadowSocksOption struct {
+		Name       string           `yaml:"name"`
+		Server     string           `yaml:"server"`
+		Port       int              `yaml:"port"`
+		Password   string           `yaml:"password"`
+		Cipher     string           `yaml:"cipher"`
+		UDP        bool             `yaml:"udp,omitempty"`
+		Plugin     string           `yaml:"plugin,omitempty"`
+		PluginOpts simpleObfsOption `yaml:"plugin-opts,omitempty"`
+	}
+	var option ShadowSocksOption
+	if err = o.Decode(&option); err != nil {
+		return nil, err
+	}
+	data = &Shadowsocks{
+		Name:     option.Name,
+		Server:   option.Server,
+		Port:     option.Port,
+		Password: option.Password,
+		Cipher:   option.Cipher,
+		UDP:      option.UDP,
+		Protocol: "shadowsocks",
+	}
+	if option.Plugin == "obfs" {
+		data.Plugin.Name = "simple-obfs"
+		data.Plugin.Opts.Obfs = option.PluginOpts.Mode
+		data.Plugin.Opts.Host = data.Plugin.Opts.Host
+		if data.Plugin.Opts.Host == "" {
+			data.Plugin.Opts.Host = "bing.com"
+		}
+	}
+	return data, nil
+}
+
+func ParseSSURL(u string) (data *Shadowsocks, err error) {
+	// parse attempts to parse ss:// links
+	parse := func(content string) (v *Shadowsocks, ok bool) {
+		// try to parse in the format of ss://BASE64(method:password)@server:port/?plugin=xxxx#name
+		u, err := url.Parse(content)
+		if err != nil {
+			return nil, false
+		}
+		username := u.User.String()
+		username, _ = common.Base64UrlDecode(username)
+		arr := strings.SplitN(username, ":", 2)
+		if len(arr) != 2 {
+			return nil, false
+		}
+		cipher := arr[0]
+		password := arr[1]
+		var sip003 Sip003
+		plugin := u.Query().Get("plugin")
+		if len(plugin) > 0 {
+			sip003 = ParseSip003(plugin)
+		}
+		port, err := strconv.Atoi(u.Port())
+		if err != nil {
+			return nil, false
+		}
+		return &Shadowsocks{
+			Cipher:   strings.ToLower(cipher),
+			Password: password,
+			Server:   u.Hostname(),
+			Port:     port,
+			Name:     u.Fragment,
+			Plugin:   sip003,
+			UDP:      sip003.Name == "",
+			Protocol: "shadowsocks",
+		}, true
+	}
+	var (
+		v  *Shadowsocks
+		ok bool
+	)
+	content := u
+	// try to parse the ss:// link, if it fails, base64 decode first
+	if v, ok = parse(content); !ok {
+		// 进行base64解码，并unmarshal到VmessInfo上
+		t := content[5:]
+		var l, r string
+		if ind := strings.Index(t, "#"); ind > -1 {
+			l = t[:ind]
+			r = t[ind+1:]
+		} else {
+			l = t
+		}
+		l, err = common.Base64StdDecode(l)
+		if err != nil {
+			l, err = common.Base64UrlDecode(l)
+			if err != nil {
+				return
+			}
+		}
+		t = "ss://" + l
+		if len(r) > 0 {
+			t += "#" + r
+		}
+		v, ok = parse(t)
+	}
+	if !ok {
+		return nil, fmt.Errorf("%w: unrecognized ss address", dialer.InvalidParameterErr)
+	}
+	return v, nil
+}
+
+type Sip003 struct {
+	Name string     `json:"name"`
+	Opts Sip003Opts `json:"opts"`
+}
+type Sip003Opts struct {
+	Tls  string `json:"tls"` // for v2ray-plugin
+	Obfs string `json:"obfs"`
+	Host string `json:"host"`
+	Path string `json:"uri"`
+}
+
+func ParseSip003Opts(opts string) Sip003Opts {
+	var sip003Opts Sip003Opts
+	fields := strings.Split(opts, ";")
+	for i := range fields {
+		a := strings.Split(fields[i], "=")
+		if len(a) == 1 {
+			// to avoid panic
+			a = append(a, "")
+		}
+		switch a[0] {
+		case "tls":
+			sip003Opts.Tls = "tls"
+		case "obfs", "mode":
+			sip003Opts.Obfs = a[1]
+		case "obfs-path", "obfs-uri", "path":
+			if !strings.HasPrefix(a[1], "/") {
+				a[1] += "/"
+			}
+			sip003Opts.Path = a[1]
+		case "obfs-host", "host":
+			sip003Opts.Host = a[1]
+		}
+	}
+	return sip003Opts
+}
+func ParseSip003(plugin string) Sip003 {
+	var sip003 Sip003
+	fields := strings.SplitN(plugin, ";", 2)
+	switch fields[0] {
+	case "obfs-local", "simpleobfs":
+		sip003.Name = "simple-obfs"
+	default:
+		sip003.Name = fields[0]
+	}
+	sip003.Opts = ParseSip003Opts(fields[1])
+	return sip003
+}
+
+func (s *Sip003) String() string {
+	list := []string{s.Name}
+	if s.Opts.Obfs != "" {
+		list = append(list, "obfs="+s.Opts.Obfs)
+	}
+	if s.Opts.Host != "" {
+		list = append(list, "obfs-host="+s.Opts.Host)
+	}
+	if s.Opts.Path != "" {
+		list = append(list, "obfs-uri="+s.Opts.Path)
+	}
+	return strings.Join(list, ";")
+}
+
+func (s *Shadowsocks) ExportToURL() string {
+	// sip002
+	u := &url.URL{
+		Scheme:   "ss",
+		User:     url.User(strings.TrimSuffix(base64.URLEncoding.EncodeToString([]byte(s.Cipher+":"+s.Password)), "=")),
+		Host:     net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		Fragment: s.Name,
+	}
+	if s.Plugin.Name != "" {
+		q := u.Query()
+		q.Set("plugin", s.Plugin.String())
+		u.RawQuery = q.Encode()
+	}
+	return u.String()
+}

component/outbound/dialer/shadowsocksr/shadowsocksr.go

@@ -0,0 +1,186 @@
+package shadowsocksr
+
+import (
+	"encoding/base64"
+	"fmt"
+	"foo/common"
+	"foo/component/outbound/dialer"
+	ssr "github.com/v2rayA/shadowsocksR/client"
+	"gopkg.in/yaml.v3"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+func init() {
+	dialer.FromLinkRegister("shadowsocksr", NewShadowsocksR)
+	dialer.FromLinkRegister("ssr", NewShadowsocksR)
+	dialer.FromClashRegister("ssr", NewShadowsocksRFromClashObj)
+}
+
+type ShadowsocksR struct {
+	Name       string `json:"name"`
+	Server     string `json:"server"`
+	Port       int    `json:"port"`
+	Password   string `json:"password"`
+	Cipher     string `json:"cipher"`
+	Proto      string `json:"proto"`
+	ProtoParam string `json:"protoParam"`
+	Obfs       string `json:"obfs"`
+	ObfsParam  string `json:"obfsParam"`
+	Protocol   string `json:"protocol"`
+}
+
+func NewShadowsocksR(link string) (*dialer.Dialer, error) {
+	s, err := ParseSSRURL(link)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func NewShadowsocksRFromClashObj(o *yaml.Node) (*dialer.Dialer, error) {
+	s, err := ParseClash(o)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func (s *ShadowsocksR) Dialer() (*dialer.Dialer, error) {
+	u := url.URL{
+		Scheme: "ssr",
+		User:   url.UserPassword(s.Cipher, s.Password),
+		Host:   net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		RawQuery: url.Values{
+			"protocol":       []string{s.Proto},
+			"protocol_param": []string{s.ProtoParam},
+			"obfs":           []string{s.Obfs},
+			"obfs_param":     []string{s.ObfsParam},
+		}.Encode(),
+	}
+	d, err := ssr.NewSSR(u.String(), dialer.SymmetricDirect, nil)
+	if err != nil {
+		return nil, err
+	}
+	return dialer.NewDialer(d, false, s.Name, s.Protocol, s.ExportToURL()), nil
+}
+
+func ParseClash(o *yaml.Node) (data *ShadowsocksR, err error) {
+	type ShadowSocksROption struct {
+		Name          string `yaml:"name"`
+		Server        string `yaml:"server"`
+		Port          int    `yaml:"port"`
+		Password      string `yaml:"password"`
+		Cipher        string `yaml:"cipher"`
+		Obfs          string `yaml:"obfs"`
+		ObfsParam     string `yaml:"obfs-param,omitempty"`
+		Protocol      string `yaml:"protocol"`
+		ProtocolParam string `yaml:"protocol-param,omitempty"`
+		UDP           bool   `yaml:"udp,omitempty"`
+	}
+	var option ShadowSocksROption
+	if err = o.Decode(&option); err != nil {
+		return nil, err
+	}
+	return &ShadowsocksR{
+		Name:       option.Name,
+		Server:     option.Server,
+		Port:       option.Port,
+		Password:   option.Password,
+		Cipher:     option.Cipher,
+		Proto:      option.Protocol,
+		ProtoParam: option.ProtocolParam,
+		Obfs:       option.Obfs,
+		ObfsParam:  option.ObfsParam,
+		Protocol:   "shadowsocksr",
+	}, nil
+}
+
+func ParseSSRURL(u string) (data *ShadowsocksR, err error) {
+	// parse attempts to parse ss:// links
+	parse := func(content string) (v ShadowsocksR, ok bool) {
+		arr := strings.Split(content, "/?")
+		if strings.Contains(content, ":") && len(arr) < 2 {
+			content += "/?remarks=&protoparam=&obfsparam="
+			arr = strings.Split(content, "/?")
+		} else if len(arr) != 2 {
+			return v, false
+		}
+		pre := strings.Split(arr[0], ":")
+		if len(pre) > 6 {
+			//if the length is more than 6, it means that the host contains the characters:,
+			//re-merge the first few groups into the host
+			pre[len(pre)-6] = strings.Join(pre[:len(pre)-5], ":")
+			pre = pre[len(pre)-6:]
+		} else if len(pre) < 6 {
+			return v, false
+		}
+		q, err := url.ParseQuery(arr[1])
+		if err != nil {
+			return v, false
+		}
+		pswd, _ := common.Base64UrlDecode(pre[5])
+		add, _ := common.Base64UrlDecode(pre[0])
+		remarks, _ := common.Base64UrlDecode(q.Get("remarks"))
+		protoparam, _ := common.Base64UrlDecode(q.Get("protoparam"))
+		obfsparam, _ := common.Base64UrlDecode(q.Get("obfsparam"))
+		port, err := strconv.Atoi(pre[1])
+		if err != nil {
+			return v, false
+		}
+		v = ShadowsocksR{
+			Name:       remarks,
+			Server:     add,
+			Port:       port,
+			Password:   pswd,
+			Cipher:     pre[3],
+			Proto:      pre[2],
+			ProtoParam: protoparam,
+			Obfs:       pre[4],
+			ObfsParam:  obfsparam,
+			Protocol:   "shadowsocksr",
+		}
+		return v, true
+	}
+	content := u[6:]
+	var (
+		info ShadowsocksR
+		ok   bool
+	)
+	// try parsing the ssr:// link, if it fails, base64 decode first
+	if info, ok = parse(content); !ok {
+		// perform base64 decoding and parse again
+		content, err = common.Base64StdDecode(content)
+		if err != nil {
+			content, err = common.Base64UrlDecode(content)
+			if err != nil {
+				return
+			}
+		}
+		info, ok = parse(content)
+	}
+	if !ok {
+		err = fmt.Errorf("%w: unrecognized ssr address", dialer.InvalidParameterErr)
+		return
+	}
+	return &info, nil
+}
+
+func (s *ShadowsocksR) ExportToURL() string {
+	/* ssr://server:port:proto:method:obfs:URLBASE64(password)/?remarks=URLBASE64(remarks)&protoparam=URLBASE64(protoparam)&obfsparam=URLBASE64(obfsparam)) */
+	return fmt.Sprintf("ssr://%v", strings.TrimSuffix(base64.URLEncoding.EncodeToString([]byte(
+		fmt.Sprintf(
+			"%v:%v:%v:%v:%v/?remarks=%v&protoparam=%v&obfsparam=%v",
+			net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+			s.Proto,
+			s.Cipher,
+			s.Obfs,
+			base64.URLEncoding.EncodeToString([]byte(s.Password)),
+			base64.URLEncoding.EncodeToString([]byte(s.Name)),
+			base64.URLEncoding.EncodeToString([]byte(s.ProtoParam)),
+			base64.URLEncoding.EncodeToString([]byte(s.ObfsParam)),
+		),
+	)), "="))
+}

component/outbound/dialer/socks/socks.go

@@ -0,0 +1,138 @@
+package socks
+
+import (
+	"fmt"
+	"foo/component/outbound/dialer"
+	"github.com/nadoo/glider/proxy"
+	"github.com/nadoo/glider/proxy/socks4"
+	"github.com/nadoo/glider/proxy/socks5"
+	"gopkg.in/yaml.v3"
+	"net"
+	"net/url"
+	"strconv"
+)
+
+func init() {
+	dialer.FromLinkRegister("socks", NewSocks) // socks -> socks5
+	dialer.FromLinkRegister("socks4", NewSocks)
+	dialer.FromLinkRegister("socks4a", NewSocks)
+	dialer.FromLinkRegister("socks5", NewSocks)
+	dialer.FromClashRegister("socks5", NewSocks5FromClashObj)
+}
+
+type Socks struct {
+	Name     string `json:"name"`
+	Server   string `json:"server"`
+	Port     int    `json:"port"`
+	Username string `json:"username"`
+	Password string `json:"password"`
+	Protocol string `json:"protocol"`
+}
+
+func NewSocks(link string) (*dialer.Dialer, error) {
+	s, err := ParseSocksURL(link)
+	if err != nil {
+		return nil, dialer.InvalidParameterErr
+	}
+	return s.Dialer()
+}
+
+func NewSocks5FromClashObj(o *yaml.Node) (*dialer.Dialer, error) {
+	s, err := ParseClashSocks5(o)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func (s *Socks) Dialer() (*dialer.Dialer, error) {
+	link := s.ExportToURL()
+	switch s.Protocol {
+	case "", "socks", "socks5":
+		d, err := socks5.NewSocks5Dialer(link, &proxy.Direct{})
+		if err != nil {
+			return nil, err
+		}
+		return dialer.NewDialer(d, true, s.Name, s.Protocol, link), nil
+	case "socks4", "socks4a":
+		d, err := socks4.NewSocks4Dialer(link, &proxy.Direct{})
+		if err != nil {
+			return nil, err
+		}
+		return dialer.NewDialer(d, false, s.Name, s.Protocol, link), nil
+	default:
+		return nil, fmt.Errorf("unexpected protocol: %v", s.Protocol)
+	}
+}
+
+func ParseClashSocks5(o *yaml.Node) (data *Socks, err error) {
+	type Socks5Option struct {
+		Name           string `yaml:"name"`
+		Server         string `yaml:"server"`
+		Port           int    `yaml:"port"`
+		UserName       string `yaml:"username,omitempty"`
+		Password       string `yaml:"password,omitempty"`
+		TLS            bool   `yaml:"tls,omitempty"`
+		UDP            bool   `yaml:"udp,omitempty"`
+		SkipCertVerify bool   `yaml:"skip-cert-verify,omitempty"`
+	}
+	var option Socks5Option
+	if err = o.Decode(&option); err != nil {
+		return nil, err
+	}
+	if option.TLS {
+		return nil, fmt.Errorf("%w: tls=true", dialer.UnexpectedFieldErr)
+	}
+	if option.SkipCertVerify {
+		return nil, fmt.Errorf("%w: skip-cert-verify=true", dialer.UnexpectedFieldErr)
+	}
+	return &Socks{
+		Name:     option.Name,
+		Server:   option.Server,
+		Port:     option.Port,
+		Username: option.UserName,
+		Password: option.Password,
+		Protocol: "socks5",
+	}, nil
+}
+
+func ParseSocksURL(link string) (data *Socks, err error) {
+	u, err := url.Parse(link)
+	if err != nil {
+		return nil, dialer.InvalidParameterErr
+	}
+	pwd, _ := u.User.Password()
+	strPort := u.Port()
+	port, err := strconv.Atoi(strPort)
+	if err != nil {
+		return nil, err
+	}
+	// socks -> socks5
+	if u.Scheme == "socks" {
+		u.Scheme = "socks5"
+	}
+	return &Socks{
+		Name:     u.Fragment,
+		Server:   u.Hostname(),
+		Port:     port,
+		Username: u.User.Username(),
+		Password: pwd,
+		Protocol: u.Scheme,
+	}, nil
+}
+
+func (s *Socks) ExportToURL() string {
+	var user *url.Userinfo
+	if s.Password != "" {
+		user = url.UserPassword(s.Username, s.Password)
+	} else {
+		user = url.User(s.Username)
+	}
+	u := url.URL{
+		Scheme:   s.Protocol,
+		User:     user,
+		Host:     net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		Fragment: s.Name,
+	}
+	return u.String()
+}

component/outbound/dialer/transport/simpleobfs/http.go

@@ -0,0 +1,101 @@
+// from https://github.com/Dreamacro/clash/blob/master/component/simple-obfs/http.go
+
+package simpleobfs
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"github.com/mzz2017/softwind/pool"
+	"io"
+	"math/rand"
+	"net"
+	"net/http"
+	"strings"
+)
+
+// HTTPObfs is shadowsocks http simple-obfs implementation
+type HTTPObfs struct {
+	net.Conn
+	host          string
+	port          string
+	path          string
+	buf           []byte
+	offset        int
+	firstRequest  bool
+	firstResponse bool
+}
+
+func (ho *HTTPObfs) Read(b []byte) (int, error) {
+	if ho.buf != nil {
+		n := copy(b, ho.buf[ho.offset:])
+		ho.offset += n
+		if ho.offset == len(ho.buf) {
+			pool.Put(ho.buf)
+			ho.buf = nil
+		}
+		return n, nil
+	}
+
+	if ho.firstResponse {
+		buf := pool.Get(1 << 15)
+		n, err := ho.Conn.Read(buf)
+		if err != nil {
+			pool.Put(buf)
+			return 0, err
+		}
+		idx := bytes.Index(buf[:n], []byte("\r\n\r\n"))
+		if idx == -1 {
+			pool.Put(buf)
+			return 0, io.EOF
+		}
+		ho.firstResponse = false
+		length := n - (idx + 4)
+		n = copy(b, buf[idx+4:n])
+		if length > n {
+			ho.buf = buf[:idx+4+length]
+			ho.offset = idx + 4 + n
+		} else {
+			pool.Put(buf)
+		}
+		return n, nil
+	}
+	return ho.Conn.Read(b)
+}
+
+func (ho *HTTPObfs) Write(b []byte) (int, error) {
+	if ho.firstRequest {
+		randBytes := make([]byte, 16)
+		rand.Read(randBytes)
+		req, _ := http.NewRequest("GET", fmt.Sprintf("http://%s%s", ho.host, ho.path), bytes.NewBuffer(b[:]))
+		req.Header.Set("User-Agent", fmt.Sprintf("curl/7.%d.%d", rand.Int()%54, rand.Int()%2))
+		req.Header.Set("Upgrade", "websocket")
+		req.Header.Set("Connection", "Upgrade")
+		req.Host = ho.host
+		if ho.port != "80" {
+			req.Host = fmt.Sprintf("%s:%s", ho.host, ho.port)
+		}
+		req.Header.Set("Sec-WebSocket-Key", base64.URLEncoding.EncodeToString(randBytes))
+		req.ContentLength = int64(len(b))
+		err := req.Write(ho.Conn)
+		ho.firstRequest = false
+		return len(b), err
+	}
+
+	return ho.Conn.Write(b)
+}
+
+// NewHTTPObfs return a HTTPObfs
+func NewHTTPObfs(conn net.Conn, host string, port string, path string) net.Conn {
+	if !strings.HasPrefix(path, "/") {
+		path = "/" + path
+	}
+	return &HTTPObfs{
+		Conn:          conn,
+		firstRequest:  true,
+		firstResponse: true,
+		host:          host,
+		port:          port,
+		path:          path,
+	}
+}

component/outbound/dialer/transport/simpleobfs/simpleobfs.go

@@ -0,0 +1,83 @@
+package simpleobfs
+
+import (
+	"fmt"
+	"golang.org/x/net/proxy"
+	"net"
+	"net/url"
+	"strings"
+)
+
+type ObfsType int
+
+const (
+	HTTP ObfsType = iota
+	TLS
+)
+
+// SimpleObfs is a base http-obfs struct
+type SimpleObfs struct {
+	dialer   proxy.Dialer
+	obfstype ObfsType
+	addr     string
+	path     string
+	host     string
+}
+
+// NewSimpleobfs returns a simpleobfs proxy.
+func NewSimpleObfs(s string, d proxy.Dialer) (*SimpleObfs, error) {
+	u, err := url.Parse(s)
+	if err != nil {
+		return nil, fmt.Errorf("simpleobfs: %w", err)
+	}
+
+	t := &SimpleObfs{
+		dialer: d,
+		addr:   u.Host,
+	}
+	query := u.Query()
+	obfstype := query.Get("type")
+	if obfstype == "" {
+		obfstype = query.Get("obfs")
+	}
+	switch strings.ToLower(obfstype) {
+	case "http":
+		t.obfstype = HTTP
+	case "tls":
+		t.obfstype = TLS
+	default:
+		return nil, fmt.Errorf("unsupported obfs type %v", obfstype)
+	}
+	t.host = query.Get("host")
+	t.path = query.Get("path")
+	if t.path == "" {
+		t.path = query.Get("uri")
+	}
+	return t, nil
+}
+
+// Dial connects to the address addr on the network net via the proxy.
+func (s *SimpleObfs) Dial(network, addr string) (c net.Conn, err error) {
+	if network == "udp" {
+		return nil, fmt.Errorf("simple-obfs does not support UDP")
+	}
+
+	rc, err := s.dialer.Dial("tcp", s.addr)
+	if err != nil {
+		return nil, fmt.Errorf("[simpleobfs]: dial to %s: %w", s.addr, err)
+	}
+	switch s.obfstype {
+	case HTTP:
+		rs := strings.Split(s.addr, ":")
+		var port string
+		if len(rs) == 1 {
+			port = "80"
+		} else {
+			port = rs[1]
+		}
+		c = NewHTTPObfs(rc, rs[0], port, s.path)
+	case TLS:
+		c = NewTLSObfs(rc, s.host)
+	}
+	return c, err
+}

component/outbound/dialer/transport/simpleobfs/tls.go

@@ -0,0 +1,192 @@
+// from https://github.com/Dreamacro/clash/blob/master/component/simple-obfs/tls.go
+
+package simpleobfs
+
+import (
+	"bytes"
+	"encoding/binary"
+	"github.com/mzz2017/softwind/pkg/fastrand"
+	"io"
+	"net"
+	"time"
+)
+
+const (
+	chunkSize = 1 << 14 // 2 ** 14 == 16 * 1024
+)
+
+// TLSObfs is shadowsocks tls simple-obfs implementation
+type TLSObfs struct {
+	net.Conn
+	server        string
+	remain        int
+	firstRequest  bool
+	firstResponse bool
+}
+
+func (to *TLSObfs) read(b []byte, discardN int) (int, error) {
+	buf := make([]byte, discardN)
+	_, err := io.ReadFull(to.Conn, buf)
+	if err != nil {
+		return 0, err
+	}
+	sizeBuf := make([]byte, 2)
+	_, err = io.ReadFull(to.Conn, sizeBuf)
+	if err != nil {
+		return 0, nil
+	}
+
+	length := int(binary.BigEndian.Uint16(sizeBuf))
+	if length > len(b) {
+		n, err := to.Conn.Read(b)
+		if err != nil {
+			return n, err
+		}
+		to.remain = length - n
+		return n, nil
+	}
+
+	return io.ReadFull(to.Conn, b[:length])
+}
+
+func (to *TLSObfs) Read(b []byte) (int, error) {
+	if to.remain > 0 {
+		length := to.remain
+		if length > len(b) {
+			length = len(b)
+		}
+
+		n, err := io.ReadFull(to.Conn, b[:length])
+		to.remain -= n
+		return n, err
+	}
+
+	if to.firstResponse {
+		// type + ver + lensize + 91 = 96
+		// type + ver + lensize + 1 = 6
+		// type + ver = 3
+		to.firstResponse = false
+		return to.read(b, 105)
+	}
+
+	// type + ver = 3
+	return to.read(b, 3)
+}
+func (to *TLSObfs) Write(b []byte) (int, error) {
+	length := len(b)
+	for i := 0; i < length; i += chunkSize {
+		end := i + chunkSize
+		if end > length {
+			end = length
+		}
+
+		n, err := to.write(b[i:end])
+		if err != nil {
+			return n, err
+		}
+	}
+	return length, nil
+}
+
+func (to *TLSObfs) write(b []byte) (int, error) {
+	if to.firstRequest {
+		helloMsg := makeClientHelloMsg(b, to.server)
+		_, err := to.Conn.Write(helloMsg)
+		to.firstRequest = false
+		return len(b), err
+	}
+
+	buf := &bytes.Buffer{}
+	buf.Write([]byte{0x17, 0x03, 0x03})
+	binary.Write(buf, binary.BigEndian, uint16(len(b)))
+	buf.Write(b)
+	_, err := to.Conn.Write(buf.Bytes())
+	return len(b), err
+}
+
+// NewTLSObfs return a SimpleObfs
+func NewTLSObfs(conn net.Conn, server string) net.Conn {
+	return &TLSObfs{
+		Conn:          conn,
+		server:        server,
+		firstRequest:  true,
+		firstResponse: true,
+	}
+}
+
+func makeClientHelloMsg(data []byte, server string) []byte {
+	random := make([]byte, 28)
+	sessionID := make([]byte, 32)
+	fastrand.Read(random)
+	fastrand.Read(sessionID)
+
+	buf := &bytes.Buffer{}
+
+	// handshake, TLS 1.0 version, length
+	buf.WriteByte(22)
+	buf.Write([]byte{0x03, 0x01})
+	length := uint16(212 + len(data) + len(server))
+	buf.WriteByte(byte(length >> 8))
+	buf.WriteByte(byte(length & 0xff))
+
+	// clientHello, length, TLS 1.2 version
+	buf.WriteByte(1)
+	buf.WriteByte(0)
+	binary.Write(buf, binary.BigEndian, uint16(208+len(data)+len(server)))
+	buf.Write([]byte{0x03, 0x03})
+
+	// random with timestamp, sid len, sid
+	binary.Write(buf, binary.BigEndian, uint32(time.Now().Unix()))
+	buf.Write(random)
+	buf.WriteByte(32)
+	buf.Write(sessionID)
+
+	// cipher suites
+	buf.Write([]byte{0x00, 0x38})
+	buf.Write([]byte{
+		0xc0, 0x2c, 0xc0, 0x30, 0x00, 0x9f, 0xcc, 0xa9, 0xcc, 0xa8, 0xcc, 0xaa, 0xc0, 0x2b, 0xc0, 0x2f,
+		0x00, 0x9e, 0xc0, 0x24, 0xc0, 0x28, 0x00, 0x6b, 0xc0, 0x23, 0xc0, 0x27, 0x00, 0x67, 0xc0, 0x0a,
+		0xc0, 0x14, 0x00, 0x39, 0xc0, 0x09, 0xc0, 0x13, 0x00, 0x33, 0x00, 0x9d, 0x00, 0x9c, 0x00, 0x3d,
+		0x00, 0x3c, 0x00, 0x35, 0x00, 0x2f, 0x00, 0xff,
+	})
+
+	// compression
+	buf.Write([]byte{0x01, 0x00})
+
+	// extension length
+	binary.Write(buf, binary.BigEndian, uint16(79+len(data)+len(server)))
+
+	// session ticket
+	buf.Write([]byte{0x00, 0x23})
+	binary.Write(buf, binary.BigEndian, uint16(len(data)))
+	buf.Write(data)
+
+	// server name
+	buf.Write([]byte{0x00, 0x00})
+	binary.Write(buf, binary.BigEndian, uint16(len(server)+5))
+	binary.Write(buf, binary.BigEndian, uint16(len(server)+3))
+	buf.WriteByte(0)
+	binary.Write(buf, binary.BigEndian, uint16(len(server)))
+	buf.Write([]byte(server))
+
+	// ec_point
+	buf.Write([]byte{0x00, 0x0b, 0x00, 0x04, 0x03, 0x01, 0x00, 0x02})
+
+	// groups
+	buf.Write([]byte{0x00, 0x0a, 0x00, 0x0a, 0x00, 0x08, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x19, 0x00, 0x18})
+
+	// signature
+	buf.Write([]byte{
+		0x00, 0x0d, 0x00, 0x20, 0x00, 0x1e, 0x06, 0x01, 0x06, 0x02, 0x06, 0x03, 0x05,
+		0x01, 0x05, 0x02, 0x05, 0x03, 0x04, 0x01, 0x04, 0x02, 0x04, 0x03, 0x03, 0x01,
+		0x03, 0x02, 0x03, 0x03, 0x02, 0x01, 0x02, 0x02, 0x02, 0x03,
+	})
+
+	// encrypt then mac
+	buf.Write([]byte{0x00, 0x16, 0x00, 0x00})
+
+	// extended master secret
+	buf.Write([]byte{0x00, 0x17, 0x00, 0x00})
+
+	return buf.Bytes()
+}

component/outbound/dialer/transport/tls/tls.go

@@ -0,0 +1,62 @@
+package tls
+
+import (
+	"crypto/tls"
+	"fmt"
+	"golang.org/x/net/proxy"
+	"net"
+	"net/url"
+)
+
+// Tls is a base Tls struct
+type Tls struct {
+	dialer     proxy.Dialer
+	addr       string
+	serverName string
+	skipVerify bool
+	tlsConfig  *tls.Config
+}
+
+// NewTls returns a Tls infra.
+func NewTls(s string, d proxy.Dialer) (*Tls, error) {
+	u, err := url.Parse(s)
+	if err != nil {
+		return nil, fmt.Errorf("NewTls: %w", err)
+	}
+
+	t := &Tls{
+		dialer: d,
+		addr:   u.Host,
+	}
+
+	query := u.Query()
+	t.serverName = query.Get("sni")
+
+	// skipVerify
+	if query.Get("allowInsecure") == "true" || query.Get("allowInsecure") == "1" ||
+		query.Get("skipVerify") == "true" || query.Get("skipVerify") == "1" {
+		t.skipVerify = true
+	}
+	if t.serverName == "" {
+		t.serverName = u.Hostname()
+	}
+	t.tlsConfig = &tls.Config{
+		ServerName:         t.serverName,
+		InsecureSkipVerify: t.skipVerify,
+	}
+
+	return t, nil
+}
+
+func (s *Tls) Dial(network, addr string) (conn net.Conn, err error) {
+	rc, err := s.dialer.Dial("tcp", addr)
+	if err != nil {
+		return nil, fmt.Errorf("[Tls]: dial to %s: %w", s.addr, err)
+	}
+
+	tlsConn := tls.Client(rc, s.tlsConfig)
+	if err := tlsConn.Handshake(); err != nil {
+		return nil, err
+	}
+	return tlsConn, err
+}

component/outbound/dialer/transport/ws/conn.go

@@ -0,0 +1,42 @@
+package ws
+
+import (
+	"bytes"
+	"github.com/gorilla/websocket"
+	"time"
+)
+
+type conn struct {
+	*websocket.Conn
+	readBuffer bytes.Buffer
+}
+
+func newConn(wsc *websocket.Conn) *conn {
+	return &conn{
+		Conn: wsc,
+	}
+}
+
+func (c *conn) Read(b []byte) (n int, err error) {
+	if c.readBuffer.Len() > 0 {
+		return c.readBuffer.Read(b)
+	}
+	_, msg, err := c.Conn.ReadMessage()
+	if err != nil {
+		return 0, err
+	}
+	n = copy(b, msg)
+	if n < len(msg) {
+		c.readBuffer.Write(msg[n:])
+	}
+	return n, nil
+
+}
+func (c *conn) Write(b []byte) (n int, err error) {
+	return len(b), c.Conn.WriteMessage(websocket.BinaryMessage, b)
+}
+
+func (c *conn) SetDeadline(t time.Time) error {
+	_ = c.Conn.SetReadDeadline(t)
+	return c.Conn.SetWriteDeadline(t)
+}

component/outbound/dialer/transport/ws/ws.go

@@ -0,0 +1,67 @@
+package ws
+
+import (
+	"crypto/tls"
+	"fmt"
+	"github.com/gorilla/websocket"
+	"golang.org/x/net/proxy"
+	"net"
+	"net/http"
+	"net/url"
+)
+
+// Ws is a base Ws struct
+type Ws struct {
+	dialer   proxy.Dialer
+	wsAddr   string
+	header   http.Header
+	wsDialer *websocket.Dialer
+}
+
+// NewWs returns a Ws infra.
+func NewWs(s string, d proxy.Dialer) (*Ws, error) {
+	u, err := url.Parse(s)
+	if err != nil {
+		return nil, fmt.Errorf("NewWs: %w", err)
+	}
+
+	t := &Ws{
+		dialer: d,
+	}
+
+	query := u.Query()
+	host := query.Get("host")
+	if host == "" {
+		host = u.Hostname()
+	}
+	t.header = http.Header{}
+	t.header.Set("Host", host)
+
+	wsUrl := url.URL{
+		Scheme: u.Scheme,
+		Host:   u.Host,
+		Path:   u.Path,
+	}
+	t.wsAddr = wsUrl.String()
+	t.wsDialer = &websocket.Dialer{
+		NetDial:      d.Dial,
+		//Subprotocols: []string{"binary"},
+	}
+	if u.Scheme == "wss" {
+		if u.Query().Get("sni") != "" {
+			t.wsDialer.TLSClientConfig = &tls.Config{
+				ServerName: u.Query().Get("sni"),
+			}
+		}
+	}
+	return t, nil
+}
+
+// Dial connects to the address addr on the network net via the infra.
+func (s *Ws) Dial(network, addr string) (net.Conn, error) {
+	rc, _, err := s.wsDialer.Dial(s.wsAddr, s.header)
+	if err != nil {
+		return nil, fmt.Errorf("[Ws]: dial to %s: %w", s.wsAddr, err)
+	}
+	return newConn(rc), err
+}

component/outbound/dialer/trojan/trojan.go

@@ -0,0 +1,232 @@
+package trojan
+
+import (
+	"fmt"
+	"foo/common"
+	"foo/component/outbound/dialer"
+	"foo/component/outbound/dialer/transport/tls"
+	"foo/component/outbound/dialer/transport/ws"
+	"github.com/mzz2017/softwind/protocol"
+	"github.com/mzz2017/softwind/transport/grpc"
+	"gopkg.in/yaml.v3"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+func init() {
+	dialer.FromLinkRegister("trojan", NewTrojan)
+	dialer.FromLinkRegister("trojan-go", NewTrojan)
+	dialer.FromClashRegister("trojan", NewTrojanFromClashObj)
+}
+
+type Trojan struct {
+	Name          string `json:"name"`
+	Server        string `json:"server"`
+	Port          int    `json:"port"`
+	Password      string `json:"password"`
+	Sni           string `json:"sni"`
+	Type          string `json:"type"`
+	Encryption    string `json:"encryption"`
+	Host          string `json:"host"`
+	Path          string `json:"path"`
+	ServiceName   string `json:"serviceName"`
+	AllowInsecure bool   `json:"allowInsecure"`
+	Protocol      string `json:"protocol"`
+}
+
+func NewTrojan(link string) (*dialer.Dialer, error) {
+	s, err := ParseTrojanURL(link)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func NewTrojanFromClashObj(o *yaml.Node) (*dialer.Dialer, error) {
+	s, err := ParseClash(o)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func (s *Trojan) Dialer() (*dialer.Dialer, error) {
+	d := dialer.SymmetricDirect
+	u := url.URL{
+		Scheme: "tls",
+		Host:   net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		RawQuery: url.Values{
+			"sni": []string{s.Sni},
+		}.Encode(),
+	}
+	var err error
+	if s.Type != "grpc" {
+		// grpc contains tls
+		if d, err = tls.NewTls(u.String(), d); err != nil {
+			return nil, err
+		}
+	}
+	// "tls,ws,ss,trojanc"
+	switch s.Type {
+	case "ws":
+		u = url.URL{
+			Scheme: "ws",
+			Host:   net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+			RawQuery: url.Values{
+				"host": []string{s.Host},
+				"path": []string{s.Path},
+			}.Encode(),
+		}
+		if d, err = ws.NewWs(u.String(), d); err != nil {
+			return nil, err
+		}
+	case "grpc":
+		serviceName := s.ServiceName
+		if serviceName == "" {
+			serviceName = "GunService"
+		}
+		d = &grpc.Dialer{
+			NextDialer:  &protocol.DialerConverter{Dialer: d},
+			ServiceName: serviceName,
+			ServerName:  s.Sni,
+		}
+	}
+	if strings.HasPrefix(s.Encryption, "ss;") {
+		fields := strings.SplitN(s.Encryption, ";", 3)
+		if d, err = protocol.NewDialer("shadowsocks", d, protocol.Header{
+			ProxyAddress: net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+			Cipher:       fields[1],
+			Password:     fields[2],
+			IsClient:     false,
+		}); err != nil {
+			return nil, err
+		}
+	}
+	if d, err = protocol.NewDialer("trojanc", d, protocol.Header{
+		ProxyAddress: net.JoinHostPort(s.Server, strconv.Itoa(s.Port)),
+		Password:     s.Password,
+		IsClient:     true,
+	}); err != nil {
+		return nil, err
+	}
+	return dialer.NewDialer(d, true, s.Name, s.Protocol, s.ExportToURL()), nil
+}
+
+func ParseTrojanURL(u string) (data *Trojan, err error) {
+	//trojan://password@server:port#escape(remarks)
+	t, err := url.Parse(u)
+	if err != nil {
+		err = fmt.Errorf("invalid trojan format")
+		return
+	}
+	allowInsecure := t.Query().Get("allowInsecure")
+	sni := t.Query().Get("peer")
+	if sni == "" {
+		sni = t.Query().Get("sni")
+	}
+	if sni == "" {
+		sni = t.Hostname()
+	}
+	port, err := strconv.Atoi(t.Port())
+	if err != nil {
+		return nil, dialer.InvalidParameterErr
+	}
+	data = &Trojan{
+		Name:          t.Fragment,
+		Server:        t.Hostname(),
+		Port:          port,
+		Password:      t.User.Username(),
+		Sni:           sni,
+		AllowInsecure: allowInsecure == "1" || allowInsecure == "true",
+		Protocol:      "trojan",
+	}
+	if t.Query().Get("type") != "" {
+		t.Scheme = "trojan-go"
+	}
+	if t.Scheme == "trojan-go" {
+		data.Protocol = "trojan-go"
+		data.Encryption = t.Query().Get("encryption")
+		data.Host = t.Query().Get("host")
+		data.Path = t.Query().Get("path")
+		data.Type = t.Query().Get("type")
+		data.ServiceName = t.Query().Get("serviceName")
+		if data.Type == "grpc" && data.ServiceName == "" {
+			data.ServiceName = data.Path
+		}
+		data.AllowInsecure = false
+	}
+	return data, nil
+}
+
+func ParseClash(o *yaml.Node) (data *Trojan, err error) {
+	type WSOptions struct {
+		Path                string            `yaml:"path,omitempty"`
+		Headers             map[string]string `yaml:"headers,omitempty"`
+		MaxEarlyData        int               `yaml:"max-early-data,omitempty"`
+		EarlyDataHeaderName string            `yaml:"early-data-header-name,omitempty"`
+	}
+	type GrpcOptions struct {
+		GrpcServiceName string `proxy:"grpc-service-name,omitempty"`
+	}
+	type TrojanOption struct {
+		Name           string      `yaml:"name"`
+		Server         string      `yaml:"server"`
+		Port           int         `yaml:"port"`
+		Password       string      `yaml:"password"`
+		ALPN           []string    `yaml:"alpn,omitempty"`
+		SNI            string      `yaml:"sni,omitempty"`
+		SkipCertVerify bool        `yaml:"skip-cert-verify,omitempty"`
+		UDP            bool        `yaml:"udp,omitempty"`
+		Network        string      `yaml:"network,omitempty"`
+		GrpcOpts       GrpcOptions `yaml:"grpc-opts,omitempty"`
+		WSOpts         WSOptions   `yaml:"ws-opts,omitempty"`
+	}
+	var option TrojanOption
+	if err = o.Decode(&option); err != nil {
+		return nil, err
+	}
+	proto := "trojan"
+	if option.Network != "" && option.Network != "origin" {
+		proto = "trojan-go"
+	}
+	return &Trojan{
+		Name:          option.Name,
+		Server:        option.Server,
+		Port:          option.Port,
+		Password:      option.Password,
+		Sni:           option.SNI,
+		Type:          option.Network,
+		Encryption:    "",
+		Host:          option.WSOpts.Headers["Host"],
+		Path:          option.WSOpts.Path,
+		AllowInsecure: option.SkipCertVerify,
+		ServiceName:   option.GrpcOpts.GrpcServiceName,
+		Protocol:      proto,
+	}, nil
+}
+
+func (t *Trojan) ExportToURL() string {
+	u := &url.URL{
+		Scheme:   "trojan",
+		User:     url.User(t.Password),
+		Host:     net.JoinHostPort(t.Server, strconv.Itoa(t.Port)),
+		Fragment: t.Name,
+	}
+	q := u.Query()
+	if t.AllowInsecure {
+		q.Set("allowInsecure", "1")
+	}
+	common.SetValue(&q, "sni", t.Sni)
+
+	if t.Protocol == "trojan-go" {
+		u.Scheme = "trojan-go"
+		common.SetValue(&q, "host", t.Host)
+		common.SetValue(&q, "encryption", t.Encryption)
+		common.SetValue(&q, "type", t.Type)
+		common.SetValue(&q, "path", t.Path)
+	}
+	u.RawQuery = q.Encode()
+	return u.String()
+}

component/outbound/dialer/v2ray/v2ray.go

@@ -0,0 +1,402 @@
+package v2ray
+
+import (
+	"encoding/base64"
+	"fmt"
+	"foo/common"
+	"foo/component/outbound/dialer"
+	"foo/component/outbound/dialer/transport/tls"
+	"foo/component/outbound/dialer/transport/ws"
+	jsoniter "github.com/json-iterator/go"
+	"github.com/mzz2017/softwind/protocol"
+	"github.com/mzz2017/softwind/transport/grpc"
+	"gopkg.in/yaml.v3"
+	"net"
+	"net/url"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+func init() {
+	dialer.FromLinkRegister("vmess", NewV2Ray)
+	dialer.FromLinkRegister("vless", NewV2Ray)
+	dialer.FromClashRegister("vmess", NewVMessFromClashObj)
+}
+
+type V2Ray struct {
+	Ps            string `json:"ps"`
+	Add           string `json:"add"`
+	Port          string `json:"port"`
+	ID            string `json:"id"`
+	Aid           string `json:"aid"`
+	Net           string `json:"net"`
+	Type          string `json:"type"`
+	Host          string `json:"host"`
+	SNI           string `json:"sni"`
+	Path          string `json:"path"`
+	TLS           string `json:"tls"`
+	Flow          string `json:"flow,omitempty"`
+	Alpn          string `json:"alpn,omitempty"`
+	AllowInsecure bool   `json:"allowInsecure"`
+	V             string `json:"v"`
+	Protocol      string `json:"protocol"`
+}
+
+func NewV2Ray(link string) (*dialer.Dialer, error) {
+	var (
+		s   *V2Ray
+		err error
+	)
+	switch {
+	case strings.HasPrefix(link, "vmess://"):
+		s, err = ParseVmessURL(link)
+		if err != nil {
+			return nil, err
+		}
+		if s.Aid != "0" && s.Aid != "" {
+			return nil, fmt.Errorf("%w: aid: %v, we only support AEAD encryption", dialer.UnexpectedFieldErr, s.Aid)
+		}
+	case strings.HasPrefix(link, "vless://"):
+		s, err = ParseVlessURL(link)
+		if err != nil {
+			return nil, err
+		}
+	default:
+		return nil, dialer.InvalidParameterErr
+	}
+	return s.Dialer()
+}
+
+func NewVMessFromClashObj(o *yaml.Node) (*dialer.Dialer, error) {
+	s, err := ParseClashVMess(o)
+	if err != nil {
+		return nil, err
+	}
+	return s.Dialer()
+}
+
+func (s *V2Ray) Dialer() (data *dialer.Dialer, err error) {
+	var (
+		d = dialer.SymmetricDirect
+	)
+
+	switch strings.ToLower(s.Net) {
+	case "ws":
+		scheme := "ws"
+		if s.TLS == "tls" || s.TLS == "xtls" {
+			scheme = "wss"
+		}
+		sni := s.SNI
+		if sni == "" {
+			sni = s.Host
+		}
+		u := url.URL{
+			Scheme: scheme,
+			Host:   net.JoinHostPort(s.Add, s.Port),
+			Path:   s.Path,
+			RawQuery: url.Values{
+				"host": []string{s.Host},
+				"sni":  []string{sni},
+			}.Encode(),
+		}
+		d, err = ws.NewWs(u.String(), d)
+		if err != nil {
+			return nil, err
+		}
+	case "tcp":
+		if s.TLS == "tls" || s.TLS == "xtls" {
+			sni := s.SNI
+			if sni == "" {
+				sni = s.Host
+			}
+			u := url.URL{
+				Scheme: "tls",
+				Host:   net.JoinHostPort(s.Add, s.Port),
+				RawQuery: url.Values{
+					"sni": []string{sni},
+				}.Encode(),
+			}
+			d, err = tls.NewTls(u.String(), d)
+			if err != nil {
+				return nil, err
+			}
+		}
+		if s.Type != "none" && s.Type != "" {
+			return nil, fmt.Errorf("%w: type: %v", dialer.UnexpectedFieldErr, s.Type)
+		}
+	case "grpc":
+		sni := s.SNI
+		if sni == "" {
+			sni = s.Host
+		}
+		serviceName := s.Path
+		if serviceName == "" {
+			serviceName = "GunService"
+		}
+		d = &grpc.Dialer{
+			NextDialer:  &protocol.DialerConverter{Dialer: d},
+			ServiceName: serviceName,
+			ServerName:  sni,
+		}
+	default:
+		return nil, fmt.Errorf("%w: network: %v", dialer.UnexpectedFieldErr, s.Net)
+	}
+
+	if d, err = protocol.NewDialer(s.Protocol, d, protocol.Header{
+		ProxyAddress: net.JoinHostPort(s.Add, s.Port),
+		Cipher:       "aes-128-gcm",
+		Password:     s.ID,
+		IsClient:     true,
+	}); err != nil {
+		return nil, err
+	}
+	return dialer.NewDialer(d, true, s.Ps, s.Protocol, s.ExportToURL()), nil
+}
+
+func ParseClashVMess(o *yaml.Node) (data *V2Ray, err error) {
+	type WSOptions struct {
+		Path                string            `yaml:"path,omitempty"`
+		Headers             map[string]string `yaml:"headers,omitempty"`
+		MaxEarlyData        int               `yaml:"max-early-data,omitempty"`
+		EarlyDataHeaderName string            `yaml:"early-data-header-name,omitempty"`
+	}
+	type GrpcOptions struct {
+		GrpcServiceName string `proxy:"grpc-service-name,omitempty"`
+	}
+	type HTTP2Options struct {
+		Host []string `proxy:"host,omitempty"`
+		Path string   `proxy:"path,omitempty"`
+	}
+	type VmessOption struct {
+		Name           string       `yaml:"name"`
+		Server         string       `yaml:"server"`
+		Port           int          `yaml:"port"`
+		UUID           string       `yaml:"uuid"`
+		AlterID        int          `yaml:"alterId"`
+		Cipher         string       `yaml:"cipher"`
+		UDP            bool         `yaml:"udp,omitempty"`
+		Network        string       `yaml:"network,omitempty"`
+		TLS            bool         `yaml:"tls,omitempty"`
+		SkipCertVerify bool         `yaml:"skip-cert-verify,omitempty"`
+		ServerName     string       `yaml:"servername,omitempty"`
+		HTTPOpts       interface{}  `yaml:"http-opts,omitempty"`
+		HTTP2Opts      HTTP2Options `yaml:"h2-opts,omitempty"`
+		GrpcOpts       GrpcOptions  `yaml:"grpc-opts,omitempty"`
+		WSOpts         WSOptions    `yaml:"ws-opts,omitempty"`
+	}
+	var option VmessOption
+	if err = o.Decode(&option); err != nil {
+		return nil, err
+	}
+
+	if option.Network == "" {
+		option.Network = "tcp"
+	}
+	var (
+		path string
+		host string
+		alpn string
+	)
+	switch option.Network {
+	case "ws":
+		path = option.WSOpts.Path
+		host = option.WSOpts.Headers["Host"]
+		alpn = "http/1.1"
+	case "grpc":
+		path = option.GrpcOpts.GrpcServiceName
+	case "h2":
+		host = strings.Join(option.HTTP2Opts.Host, ",")
+		path = option.HTTP2Opts.Path
+		alpn = "h2"
+	case "http":
+		// TODO
+	}
+	s := &V2Ray{
+		Ps:            option.Name,
+		Add:           option.Server,
+		Port:          strconv.Itoa(option.Port),
+		ID:            option.UUID,
+		Aid:           strconv.Itoa(option.AlterID),
+		Net:           option.Network,
+		Type:          "none", // FIXME
+		Host:          host,
+		SNI:           option.ServerName,
+		Path:          path,
+		AllowInsecure: false,
+		Alpn:          alpn,
+		V:             "2",
+		Protocol:      "vmess",
+	}
+	if option.SkipCertVerify {
+		return nil, fmt.Errorf("%w: skip-cert-verify=true", dialer.UnexpectedFieldErr)
+	}
+	if option.TLS {
+		s.TLS = "tls"
+	}
+	return s, nil
+}
+func ParseVlessURL(vless string) (data *V2Ray, err error) {
+	u, err := url.Parse(vless)
+	if err != nil {
+		return nil, err
+	}
+	data = &V2Ray{
+		Ps:       u.Fragment,
+		Add:      u.Hostname(),
+		Port:     u.Port(),
+		ID:       u.User.String(),
+		Net:      u.Query().Get("type"),
+		Type:     u.Query().Get("headerType"),
+		SNI:      u.Query().Get("sni"),
+		Host:     u.Query().Get("host"),
+		Path:     u.Query().Get("path"),
+		TLS:      u.Query().Get("security"),
+		Flow:     u.Query().Get("flow"),
+		Alpn:     u.Query().Get("alpn"),
+		Protocol: "vless",
+	}
+	if data.Net == "" {
+		data.Net = "tcp"
+	}
+	if data.Net == "grpc" {
+		data.Path = u.Query().Get("serviceName")
+	}
+	if data.Type == "" {
+		data.Type = "none"
+	}
+	if data.TLS == "" {
+		data.TLS = "none"
+	}
+	if data.Flow == "" {
+		data.Flow = "xtls-rprx-direct"
+	}
+	if data.Type == "mkcp" || data.Type == "kcp" {
+		data.Path = u.Query().Get("seed")
+	}
+	return data, nil
+}
+
+func ParseVmessURL(vmess string) (data *V2Ray, err error) {
+	var info V2Ray
+	// perform base64 decoding and unmarshal to VmessInfo
+	raw, err := common.Base64StdDecode(vmess[8:])
+	if err != nil {
+		raw, err = common.Base64UrlDecode(vmess[8:])
+	}
+	if err != nil {
+		// not in json format, try to resolve as vmess://BASE64(Security:ID@Add:Port)?remarks=Ps&obfsParam=Host&Path=Path&obfs=Net&tls=TLS
+		var u *url.URL
+		u, err = url.Parse(vmess)
+		if err != nil {
+			return
+		}
+		re := regexp.MustCompile(`.*:(.+)@(.+):(\d+)`)
+		s := strings.Split(vmess[8:], "?")[0]
+		s, err = common.Base64StdDecode(s)
+		if err != nil {
+			s, err = common.Base64UrlDecode(s)
+		}
+		subMatch := re.FindStringSubmatch(s)
+		if subMatch == nil {
+			err = fmt.Errorf("unrecognized vmess address")
+			return
+		}
+		q := u.Query()
+		ps := q.Get("remarks")
+		if ps == "" {
+			ps = q.Get("remark")
+		}
+		obfs := q.Get("obfs")
+		obfsParam := q.Get("obfsParam")
+		path := q.Get("path")
+		if obfs == "kcp" || obfs == "mkcp" {
+			m := make(map[string]string)
+			//cater to v2rayN definition
+			_ = jsoniter.Unmarshal([]byte(obfsParam), &m)
+			path = m["seed"]
+			obfsParam = ""
+		}
+		aid := q.Get("alterId")
+		if aid == "" {
+			aid = q.Get("aid")
+		}
+		info = V2Ray{
+			ID:            subMatch[1],
+			Add:           subMatch[2],
+			Port:          subMatch[3],
+			Ps:            ps,
+			Host:          obfsParam,
+			Path:          path,
+			Net:           obfs,
+			Aid:           aid,
+			TLS:           map[string]string{"1": "tls"}[q.Get("tls")],
+			AllowInsecure: false,
+		}
+		if info.Net == "websocket" {
+			info.Net = "ws"
+		}
+	} else {
+		err = jsoniter.Unmarshal([]byte(raw), &info)
+		if err != nil {
+			return
+		}
+	}
+	// correct the wrong vmess as much as possible
+	if strings.HasPrefix(info.Host, "/") && info.Path == "" {
+		info.Path = info.Host
+		info.Host = ""
+	}
+	if info.Aid == "" {
+		info.Aid = "0"
+	}
+	info.Protocol = "vmess"
+	return &info, nil
+}
+
+func (s *V2Ray) ExportToURL() string {
+	switch s.Protocol {
+	case "vless":
+		// https://github.com/XTLS/Xray-core/issues/91
+		var query = make(url.Values)
+		common.SetValue(&query, "type", s.Net)
+		common.SetValue(&query, "security", s.TLS)
+		switch s.Net {
+		case "websocket", "ws", "http", "h2":
+			common.SetValue(&query, "path", s.Path)
+			common.SetValue(&query, "host", s.Host)
+		case "mkcp", "kcp":
+			common.SetValue(&query, "headerType", s.Type)
+			common.SetValue(&query, "seed", s.Path)
+		case "tcp":
+			common.SetValue(&query, "headerType", s.Type)
+			common.SetValue(&query, "host", s.Host)
+			common.SetValue(&query, "path", s.Path)
+		case "grpc":
+			common.SetValue(&query, "serviceName", s.Path)
+		}
+		//TODO: QUIC
+		if s.TLS != "none" {
+			common.SetValue(&query, "sni", s.Host) // FIXME: it may be different from ws's host
+			common.SetValue(&query, "alpn", s.Alpn)
+		}
+		if s.TLS == "xtls" {
+			common.SetValue(&query, "flow", s.Flow)
+		}
+
+		U := url.URL{
+			Scheme:   "vless",
+			User:     url.User(s.ID),
+			Host:     net.JoinHostPort(s.Add, s.Port),
+			RawQuery: query.Encode(),
+			Fragment: s.Ps,
+		}
+		return U.String()
+	case "vmess":
+		s.V = "2"
+		b, _ := jsoniter.Marshal(s)
+		return "vmess://" + strings.TrimSuffix(base64.StdEncoding.EncodeToString(b), "=")
+	}
+	//log.Warn("unexpected protocol: %v", v.Protocol)
+	return ""
+}

component/outbound/dialer_group.go

@@ -0,0 +1,125 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package outbound
+
+import (
+	"fmt"
+	"foo/common/consts"
+	"foo/component/outbound/dialer"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/net/proxy"
+	"net"
+)
+
+type DialerSelectionPolicy struct {
+	Policy     consts.DialerSelectionPolicy
+	FixedIndex int
+}
+
+type DialerGroup struct {
+	proxy.Dialer
+
+	log  *logrus.Logger
+	Name string
+
+	Dialers []*dialer.Dialer
+
+	registeredAliveDialerSet bool
+	AliveDialerSet           *dialer.AliveDialerSet
+
+	selectionPolicy *DialerSelectionPolicy
+}
+
+func NewDialerGroup(log *logrus.Logger, name string, dialers []*dialer.Dialer, p DialerSelectionPolicy) *DialerGroup {
+	var registeredAliveDialerSet bool
+	a := dialer.NewAliveDialerSet(log, p.Policy, dialers, true)
+
+	switch p.Policy {
+	case consts.DialerSelectionPolicy_Random,
+		consts.DialerSelectionPolicy_MinLastLatency,
+		consts.DialerSelectionPolicy_MinAverage10Latencies:
+		// Need to know the alive state or latency.
+		for _, d := range dialers {
+			d.RegisterAliveDialerSet(a)
+		}
+		registeredAliveDialerSet = true
+
+	case consts.DialerSelectionPolicy_Fixed:
+		// No need to know if the dialer is alive.
+
+	default:
+		log.Panicf("Unexpected dialer selection policy: %v", p.Policy)
+	}
+
+	return &DialerGroup{
+		log:                      log,
+		Name:                     name,
+		Dialers:                  dialers,
+		AliveDialerSet:           a,
+		registeredAliveDialerSet: registeredAliveDialerSet,
+		selectionPolicy:          &p,
+	}
+}
+
+func (g *DialerGroup) Close() error {
+	if g.registeredAliveDialerSet {
+		for _, d := range g.Dialers {
+			d.UnregisterAliveDialerSet(g.AliveDialerSet)
+		}
+	}
+	return nil
+}
+
+func (g *DialerGroup) SetSelectionPolicy(policy DialerSelectionPolicy) {
+	// TODO:
+	g.selectionPolicy = &policy
+}
+
+// Select selects a dialer from group according to selectionPolicy.
+func (g *DialerGroup) Select() (*dialer.Dialer, error) {
+	if len(g.Dialers) == 0 {
+		return nil, fmt.Errorf("no dialer in this group")
+	}
+
+	switch g.selectionPolicy.Policy {
+	case consts.DialerSelectionPolicy_Random:
+		d := g.AliveDialerSet.GetRand()
+		if d == nil {
+			// No alive dialer.
+			// TODO: Should we throw an error to block the connection in this condition?
+			g.log.Warnf("No alive dialer in DialerGroup %v, use DIRECT. It may cause IP leaking.", g.Name)
+			return dialer.FullconeDirectDialer, nil
+		}
+		return d, nil
+
+	case consts.DialerSelectionPolicy_Fixed:
+		if g.selectionPolicy.FixedIndex < 0 || g.selectionPolicy.FixedIndex >= len(g.Dialers) {
+			return nil, fmt.Errorf("selected dialer index is out of range")
+		}
+		return g.Dialers[g.selectionPolicy.FixedIndex], nil
+
+	case consts.DialerSelectionPolicy_MinLastLatency, consts.DialerSelectionPolicy_MinAverage10Latencies:
+		d := g.AliveDialerSet.GetMinLatency()
+		if d == nil {
+			// No alive dialer.
+			// TODO: Should we throw an error to block the connection in this condition?
+			g.log.Warnf("No alive dialer in DialerGroup %v, use DIRECT. It may cause IP leaking.", g.Name)
+			return dialer.FullconeDirectDialer, nil
+		}
+		return d, nil
+
+	default:
+		return nil, fmt.Errorf("unsupported DialerSelectionPolicy: %v", g.selectionPolicy)
+	}
+}
+
+func (g *DialerGroup) Dial(network string, addr string) (c net.Conn, err error) {
+	d, err := g.Select()
+	if err != nil {
+		return nil, err
+	}
+	return d.Dial(network, addr)
+}

component/outbound/dialer_group_test.go

@@ -0,0 +1,183 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package outbound
+
+import (
+	"foo/common/consts"
+	"foo/component/outbound/dialer"
+	"foo/pkg/logger"
+	"github.com/mzz2017/softwind/pkg/fastrand"
+	"testing"
+	"time"
+)
+
+func TestDialerGroup_Select_Fixed(t *testing.T) {
+	log := logger.NewLogger(2)
+	dialers := []*dialer.Dialer{
+		dialer.SymmetricDirectDialer,
+		dialer.FullconeDirectDialer,
+	}
+	fixedIndex := 1
+	g := NewDialerGroup(log, "test-group", dialers, DialerSelectionPolicy{
+		Policy:     consts.DialerSelectionPolicy_Fixed,
+		FixedIndex: fixedIndex,
+	})
+	for i := 0; i < 10; i++ {
+		d, err := g.Select()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if d != dialers[fixedIndex] {
+			t.Fail()
+		}
+	}
+
+	fixedIndex = 0
+	g.selectionPolicy.FixedIndex = fixedIndex
+	for i := 0; i < 10; i++ {
+		d, err := g.Select()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if d != dialers[fixedIndex] {
+			t.Fail()
+		}
+	}
+}
+
+func TestDialerGroup_Select_MinLastLatency(t *testing.T) {
+	log := logger.NewLogger(2)
+	dialers := []*dialer.Dialer{
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+	}
+	g := NewDialerGroup(log, "test-group", dialers, DialerSelectionPolicy{
+		Policy: consts.DialerSelectionPolicy_MinLastLatency,
+	})
+
+	// Test 1000 times.
+	for i := 0; i < 1000; i++ {
+		var minLatency time.Duration
+		jMinLatency := -1
+		for j, d := range dialers {
+			// Simulate a latency test.
+			var (
+				latency time.Duration
+				alive   bool
+			)
+			// 20% chance for timeout.
+			if fastrand.Intn(5) == 0 {
+				// Simulate a timeout test.
+				latency = 1000 * time.Millisecond
+				alive = false
+			} else {
+				// Simulate a normal test.
+				latency = time.Duration(fastrand.Int63n(int64(1000 * time.Millisecond)))
+				alive = true
+			}
+			d.Latencies10.AppendLatency(latency)
+			if jMinLatency == -1 || latency < minLatency {
+				jMinLatency = j
+				minLatency = latency
+			}
+			g.AliveDialerSet.SetAlive(d, alive)
+		}
+		d, err := g.Select()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if d != dialers[jMinLatency] {
+			// Get index of d.
+			indexD := -1
+			for j := range dialers {
+				if d == dialers[j] {
+					indexD = j
+					break
+				}
+			}
+			t.Errorf("dialers[%v] expected, but dialers[%v] selected", jMinLatency, indexD)
+		}
+	}
+}
+
+func TestDialerGroup_Select_Random(t *testing.T) {
+	log := logger.NewLogger(2)
+	dialers := []*dialer.Dialer{
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+	}
+	g := NewDialerGroup(log, "test-group", dialers, DialerSelectionPolicy{
+		Policy: consts.DialerSelectionPolicy_Random,
+	})
+	count := make([]int, len(dialers))
+	for i := 0; i < 100; i++ {
+		d, err := g.Select()
+		if err != nil {
+			t.Fatal(err)
+		}
+		for j, dd := range dialers {
+			if d == dd {
+				count[j]++
+				break
+			}
+		}
+	}
+	for i, c := range count {
+		if c == 0 {
+			t.Fail()
+		}
+		t.Logf("count[%v]: %v", i, c)
+	}
+}
+
+func TestDialerGroup_SetAlive(t *testing.T) {
+	log := logger.NewLogger(2)
+	dialers := []*dialer.Dialer{
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+		dialer.NewDialer(dialer.SymmetricDirect, true, "direct", "direct", ""),
+	}
+	g := NewDialerGroup(log, "test-group", dialers, DialerSelectionPolicy{
+		Policy: consts.DialerSelectionPolicy_Random,
+	})
+	zeroTarget := 3
+	g.AliveDialerSet.SetAlive(dialers[zeroTarget], false)
+	count := make([]int, len(dialers))
+	for i := 0; i < 100; i++ {
+		d, err := g.Select()
+		if err != nil {
+			t.Fatal(err)
+		}
+		for j, dd := range dialers {
+			if d == dd {
+				count[j]++
+				break
+			}
+		}
+	}
+	for i, c := range count {
+		if c == 0 && i != zeroTarget {
+			t.Fail()
+		}
+		t.Logf("count[%v]: %v", i, c)
+	}
+	if count[zeroTarget] != 0 {
+		t.Fail()
+	}
+}

component/outbound/outbound.go

@@ -0,0 +1,19 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package outbound
+
+import (
+	_ "foo/component/outbound/dialer/http"
+	_ "foo/component/outbound/dialer/shadowsocks"
+	_ "foo/component/outbound/dialer/shadowsocksr"
+	_ "foo/component/outbound/dialer/socks"
+	_ "foo/component/outbound/dialer/trojan"
+	_ "foo/component/outbound/dialer/v2ray"
+	_ "github.com/mzz2017/softwind/protocol/shadowsocks"
+	_ "github.com/mzz2017/softwind/protocol/trojanc"
+	_ "github.com/mzz2017/softwind/protocol/vless"
+	_ "github.com/mzz2017/softwind/protocol/vmess"
+)

component/routing/error.go

@@ -0,0 +1,91 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package routing
+
+import (
+	"fmt"
+	"github.com/antlr/antlr4/runtime/Go/antlr"
+	"reflect"
+	"strings"
+)
+
+type ErrorType string
+
+const (
+	ErrorType_Unsupported ErrorType = "is not supported"
+	ErrorType_NotSet      ErrorType = "is not set"
+)
+
+type ConsoleErrorListener struct {
+	ErrorBuilder strings.Builder
+}
+
+func NewConsoleErrorListener() *ConsoleErrorListener {
+	return &ConsoleErrorListener{}
+}
+
+func (d *ConsoleErrorListener) SyntaxError(recognizer antlr.Recognizer, offendingSymbol interface{}, line, column int, msg string, e antlr.RecognitionException) {
+	// Do not accumulate errors.
+	if d.ErrorBuilder.Len() > 0 {
+		return
+	}
+	backtrack := column
+	if backtrack > 30 {
+		backtrack = 30
+	}
+	starting := fmt.Sprintf("line %v:%v ", line, column)
+	offset := len(starting) + backtrack
+	var (
+		simplyWrite bool
+		token       antlr.Token
+	)
+	if offendingSymbol == nil {
+		simplyWrite = true
+	} else {
+		token = offendingSymbol.(antlr.Token)
+		simplyWrite = token.GetTokenType() == -1
+	}
+	if simplyWrite {
+		d.ErrorBuilder.WriteString(fmt.Sprintf("%v%v", starting, msg))
+		return
+	}
+
+	beginOfLine := token.GetStart() - backtrack
+	strPeek := token.GetInputStream().GetText(beginOfLine, token.GetStop()+30)
+	wrap := strings.IndexByte(strPeek, '\n')
+	if wrap == -1 {
+		wrap = token.GetStop() + 30
+	} else {
+		wrap += beginOfLine - 1
+	}
+	strLine := token.GetInputStream().GetText(beginOfLine, wrap)
+	d.ErrorBuilder.WriteString(fmt.Sprintf("%v%v\n%v%v: %v\n", starting, strLine, strings.Repeat(" ", offset), strings.Repeat("^", token.GetStop()-token.GetStart()+1), msg))
+}
+func (d *ConsoleErrorListener) ReportAmbiguity(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex int, exact bool, ambigAlts *antlr.BitSet, configs antlr.ATNConfigSet) {
+}
+
+func (d *ConsoleErrorListener) ReportAttemptingFullContext(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex int, conflictingAlts *antlr.BitSet, configs antlr.ATNConfigSet) {
+}
+
+func (d *ConsoleErrorListener) ReportContextSensitivity(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex, prediction int, configs antlr.ATNConfigSet) {
+}
+
+func BaseContext(ctx interface{}) (baseCtx *antlr.BaseParserRuleContext) {
+	val := reflect.ValueOf(ctx)
+	for val.Kind() == reflect.Pointer && val.Type() != reflect.TypeOf(&antlr.BaseParserRuleContext{}) {
+		val = val.Elem()
+	}
+	if val.Type() == reflect.TypeOf(&antlr.BaseParserRuleContext{}) {
+		baseCtx = val.Interface().(*antlr.BaseParserRuleContext)
+	} else {
+		baseCtxVal := val.FieldByName("BaseParserRuleContext")
+		if !baseCtxVal.IsValid() {
+			panic("has no field BaseParserRuleContext")
+		}
+		baseCtx = baseCtxVal.Interface().(*antlr.BaseParserRuleContext)
+	}
+	return baseCtx
+}

component/routing/matcher_builder.go

@@ -0,0 +1,101 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package routing
+
+import (
+	"fmt"
+	consts2 "foo/common/consts"
+	"net/netip"
+	"strings"
+)
+
+var FakeOutbound_AND = consts2.OutboundLogicalAnd.String()
+
+type MatcherBuilder interface {
+	AddDomain(key string, values []string, outbound string)
+	AddIp(values []netip.Prefix, outbound string)
+	AddPort(values [][2]int, outbound string)
+	AddSource(values []netip.Prefix, outbound string)
+	AddSourcePort(values [][2]int, outbound string)
+	AddNetwork(values consts2.NetworkType, outbound string)
+	AddIpVersion(values consts2.IpVersion, outbound string)
+	AddMac(values [][6]byte, outbound string)
+	AddFinal(outbound string)
+	AddAnyBefore(key string, values []string, outbound string)
+	AddAnyAfter(key string, values []string, outbound string)
+	Build() (err error)
+}
+
+func GroupParamValuesByKey(params []*Param) map[string][]string {
+	groups := make(map[string][]string)
+	for _, param := range params {
+		groups[param.Key] = append(groups[param.Key], param.Val)
+	}
+	return groups
+}
+
+func ParsePrefixes(values []string) (cidrs []netip.Prefix, err error) {
+	for _, value := range values {
+		toParse := value
+		if strings.LastIndexByte(value, '/') == -1 {
+			toParse += "/32"
+		}
+		prefix, err := netip.ParsePrefix(toParse)
+		if err != nil {
+			return nil, fmt.Errorf("cannot parse %v: %w", value, err)
+		}
+		cidrs = append(cidrs, prefix)
+	}
+	return cidrs, nil
+}
+
+func ApplyMatcherBuilder(builder MatcherBuilder, rules []RoutingRule, finalOutbound string) (err error) {
+	for _, rule := range rules {
+		// rule is like: domain(domain:baidu.com) && port(443) -> proxy
+		for iFunc, f := range rule.AndFunctions {
+			// f is like: domain(domain:baidu.com)
+			paramValueGroups := GroupParamValuesByKey(f.Params)
+			for key, paramValueGroup := range paramValueGroups {
+				// Preprocess the outbound and pass FakeOutbound_AND to all but the last function.
+				outbound := FakeOutbound_AND
+				if iFunc == len(rule.AndFunctions)-1 {
+					outbound = rule.Outbound
+				}
+				builder.AddAnyBefore(key, paramValueGroup, outbound)
+				switch f.Name {
+				case "domain":
+					builder.AddDomain(key, paramValueGroup, outbound)
+				case "ip":
+					cidrs, err := ParsePrefixes(paramValueGroup)
+					if err != nil {
+						return err
+					}
+					builder.AddIp(cidrs, outbound)
+				}
+				builder.AddAnyAfter(key, paramValueGroup, outbound)
+			}
+		}
+	}
+	builder.AddAnyBefore("", nil, finalOutbound)
+	builder.AddFinal(finalOutbound)
+	builder.AddAnyAfter("", nil, finalOutbound)
+	return nil
+}
+
+type DefaultMatcherBuilder struct{}
+
+func (d *DefaultMatcherBuilder) AddDomain(values []string, outbound string)                {}
+func (d *DefaultMatcherBuilder) AddIp(values []netip.Prefix, outbound string)              {}
+func (d *DefaultMatcherBuilder) AddPort(values [][2]int, outbound string)                  {}
+func (d *DefaultMatcherBuilder) AddSource(values []netip.Prefix, outbound string)          {}
+func (d *DefaultMatcherBuilder) AddSourcePort(values [][2]int, outbound string)            {}
+func (d *DefaultMatcherBuilder) AddNetwork(values consts2.NetworkType, outbound string)    {}
+func (d *DefaultMatcherBuilder) AddIpVersion(values consts2.IpVersion, outbound string)    {}
+func (d *DefaultMatcherBuilder) AddMac(values [][6]byte, outbound string)                  {}
+func (d *DefaultMatcherBuilder) AddFinal(outbound string)                                  {}
+func (d *DefaultMatcherBuilder) AddAnyBefore(key string, values []string, outbound string) {}
+func (d *DefaultMatcherBuilder) AddAnyAfter(key string, values []string, outbound string)  {}
+func (d *DefaultMatcherBuilder) Build() (err error)                                        { return nil }

component/routing/optimizer.go

@@ -0,0 +1,261 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package routing
+
+import (
+	"fmt"
+	"foo/common/assets"
+	"foo/common/consts"
+	"foo/pkg/geodata"
+	"github.com/sirupsen/logrus"
+	"net/netip"
+	"sort"
+	"strings"
+)
+import "github.com/mohae/deepcopy"
+
+type RulesOptimizer interface {
+	Optimize(rules []RoutingRule) ([]RoutingRule, error)
+}
+
+func DeepCloneRules(rules []RoutingRule) (newRules []RoutingRule) {
+	return deepcopy.Copy(rules).([]RoutingRule)
+}
+
+func ApplyRulesOptimizers(rules []RoutingRule, optimizers ...RulesOptimizer) ([]RoutingRule, error) {
+	rules = DeepCloneRules(rules)
+	var err error
+	for _, opt := range optimizers {
+		if rules, err = opt.Optimize(rules); err != nil {
+			return nil, err
+		}
+	}
+	return rules, err
+}
+
+type RefineFunctionParamKeyOptimizer struct {
+}
+
+func (o *RefineFunctionParamKeyOptimizer) Optimize(rules []RoutingRule) ([]RoutingRule, error) {
+	for _, rule := range rules {
+		for _, function := range rule.AndFunctions {
+			for _, param := range function.Params {
+				switch function.Name {
+				case "domain":
+					// Rewrite to authoritative key name.
+					switch param.Key {
+					case "", "domain":
+						param.Key = consts.RoutingDomain_Suffix
+					case "contains":
+						param.Key = consts.RoutingDomain_Keyword
+					default:
+					}
+				}
+			}
+		}
+	}
+	return rules, nil
+}
+
+type MergeAndSortRulesOptimizer struct {
+}
+
+func (o *MergeAndSortRulesOptimizer) Optimize(rules []RoutingRule) ([]RoutingRule, error) {
+	if len(rules) == 0 {
+		return rules, nil
+	}
+	// Sort AndFunctions by FunctionName.
+	for _, rule := range rules {
+		sort.SliceStable(rule.AndFunctions, func(i, j int) bool {
+			return rule.AndFunctions[i].Name < rule.AndFunctions[j].Name
+		})
+	}
+	// Merge singleton rules with the same outbound.
+	var newRules []RoutingRule
+	mergingRule := rules[0]
+	for i := 1; i < len(rules); i++ {
+		if len(mergingRule.AndFunctions) == 1 &&
+			len(rules[i].AndFunctions) == 1 &&
+			mergingRule.AndFunctions[0].Name == rules[i].AndFunctions[0].Name &&
+			rules[i].Outbound == mergingRule.Outbound {
+			mergingRule.AndFunctions[0].Params = append(mergingRule.AndFunctions[0].Params, rules[i].AndFunctions[0].Params...)
+		} else {
+			newRules = append(newRules, mergingRule)
+			mergingRule = rules[i]
+		}
+	}
+	newRules = append(newRules, mergingRule)
+	// Sort ParamList.
+	for i := range newRules {
+		for _, function := range newRules[i].AndFunctions {
+			if function.Name == "ip" {
+				// Sort by IPv4, IPv6, vals.
+				sort.SliceStable(function.Params, func(i, j int) bool {
+					vi, vj := 4, 4
+					if strings.Contains(function.Params[i].Val, ":") {
+						vi = 6
+					}
+					if strings.Contains(function.Params[j].Val, ":") {
+						vj = 6
+					}
+					if vi == vj {
+						return function.Params[i].Val < function.Params[j].Val
+					}
+					return vi < vj
+				})
+			} else {
+				// Sort by keys, vals.
+				sort.SliceStable(function.Params, func(i, j int) bool {
+					if function.Params[i].Key == function.Params[j].Key {
+						return function.Params[i].Val < function.Params[j].Val
+					}
+					return function.Params[i].Key < function.Params[j].Key
+				})
+			}
+		}
+	}
+	return newRules, nil
+}
+
+type DeduplicateParamsOptimizer struct {
+}
+
+func deduplicateParams(list []*Param) []*Param {
+	res := make([]*Param, 0, len(list))
+	m := make(map[Param]struct{})
+	for _, v := range list {
+		if _, ok := m[*v]; ok {
+			continue
+		}
+		m[*v] = struct{}{}
+		res = append(res, v)
+	}
+	return res
+}
+
+func (o *DeduplicateParamsOptimizer) Optimize(rules []RoutingRule) ([]RoutingRule, error) {
+	for _, rule := range rules {
+		for _, f := range rule.AndFunctions {
+			f.Params = deduplicateParams(f.Params)
+		}
+	}
+	return rules, nil
+}
+
+type DatReaderOptimizer struct {
+	Logger *logrus.Logger
+}
+
+func (o *DatReaderOptimizer) loadGeoSite(filename string, code string) (params []*Param, err error) {
+	if !strings.HasSuffix(filename, ".dat") {
+		filename += ".dat"
+	}
+	filePath, err := assets.GetLocationAsset(filename)
+	if err != nil {
+		o.Logger.Debugf("Failed to read geosite \"%v:%v\": %v", filename, code, err)
+		return nil, err
+	}
+	o.Logger.Debugf("Read geosite \"%v:%v\" from %v", filename, code, filePath)
+	geoSite, err := geodata.UnmarshalGeoSite(o.Logger, filePath, code)
+	if err != nil {
+		return nil, err
+	}
+	for _, item := range geoSite.Domain {
+		switch item.Type {
+		case geodata.Domain_Full:
+			// Full.
+			params = append(params, &Param{
+				Key: consts.RoutingDomain_Full,
+				Val: item.Value,
+			})
+		case geodata.Domain_RootDomain:
+			// Suffix.
+			params = append(params, &Param{
+				Key: consts.RoutingDomain_Suffix,
+				Val: item.Value,
+			})
+		case geodata.Domain_Plain:
+			// Keyword.
+			params = append(params, &Param{
+				Key: consts.RoutingDomain_Keyword,
+				Val: item.Value,
+			})
+		case geodata.Domain_Regex:
+			// Regex.
+			params = append(params, &Param{
+				Key: consts.RoutingDomain_Regex,
+				Val: item.Value,
+			})
+		}
+	}
+	return params, nil
+}
+
+func (o *DatReaderOptimizer) loadGeoIp(filename string, code string) (params []*Param, err error) {
+	if !strings.HasSuffix(filename, ".dat") {
+		filename += ".dat"
+	}
+	filePath, err := assets.GetLocationAsset(filename)
+	if err != nil {
+		o.Logger.Debugf("Failed to read geoip \"%v:%v\": %v", filename, code, err)
+		return nil, err
+	}
+	o.Logger.Debugf("Read geoip \"%v:%v\" from %v", filename, code, filePath)
+	geoIp, err := geodata.UnmarshalGeoIp(o.Logger, filePath, code)
+	if err != nil {
+		return nil, err
+	}
+	if err != nil {
+		return nil, err
+	}
+	for _, item := range geoIp.Cidr {
+		ip, ok := netip.AddrFromSlice(item.Ip)
+		if !ok {
+			return nil, fmt.Errorf("bad geoip file: %v", filename)
+		}
+		params = append(params, &Param{
+			Key: "",
+			Val: netip.PrefixFrom(ip, int(item.Prefix)).String(),
+		})
+	}
+	return params, nil
+}
+
+func (o *DatReaderOptimizer) Optimize(rules []RoutingRule) ([]RoutingRule, error) {
+	var err error
+	for _, rule := range rules {
+		for _, f := range rule.AndFunctions {
+			var newParams []*Param
+			for _, param := range f.Params {
+				// Parse this param and replace it with more.
+				var params []*Param
+				switch param.Key {
+				case "geosite":
+					params, err = o.loadGeoSite("geosite", param.Val)
+				case "geoip":
+					params, err = o.loadGeoIp("geoip", param.Val)
+				case "dat":
+					fields := strings.SplitN(param.Val, ":", 2)
+					switch f.Name {
+					case consts.Function_Domain:
+						params, err = o.loadGeoSite(fields[0], fields[1])
+					case consts.Function_Ip:
+						params, err = o.loadGeoIp(fields[0], fields[1])
+					}
+				default:
+					// Keep this param.
+					params = []*Param{param}
+				}
+				if err != nil {
+					return nil, err
+				}
+				newParams = append(newParams, params...)
+				f.Params = newParams
+			}
+		}
+	}
+	return rules, nil
+}

component/routing/routingA.go

@@ -0,0 +1,34 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package routing
+
+import (
+	"fmt"
+	"github.com/antlr/antlr4/runtime/Go/antlr"
+	"github.com/v2rayA/RoutingA-dist/go/routingA"
+)
+
+func Parse(in string) (routingRules []RoutingRule, finalOutbound string, err error) {
+	errorListener := NewConsoleErrorListener()
+	lexer := routingA.NewroutingALexer(antlr.NewInputStream(in))
+	lexer.RemoveErrorListeners()
+	lexer.AddErrorListener(errorListener)
+	input := antlr.NewCommonTokenStream(lexer, 0)
+
+	parser := routingA.NewroutingAParser(input)
+	parser.RemoveErrorListeners()
+	parser.AddErrorListener(errorListener)
+	parser.BuildParseTrees = true
+	tree := parser.Start()
+
+	walker := NewRoutingAWalker(parser)
+	antlr.ParseTreeWalkerDefault.Walk(walker, tree)
+	if errorListener.ErrorBuilder.Len() != 0 {
+		return nil, "", fmt.Errorf("%v", errorListener.ErrorBuilder.String())
+	}
+
+	return walker.RoutingRules, walker.FinalOutbound, nil
+}

component/routing/walker.go

@@ -0,0 +1,236 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package routing
+
+import (
+	"fmt"
+	"foo/common/consts"
+	"github.com/antlr/antlr4/runtime/Go/antlr"
+	"github.com/v2rayA/RoutingA-dist/go/routingA"
+	"strconv"
+	"strings"
+)
+
+type RoutingAWalker struct {
+	*routingA.BaseroutingAListener
+	parser        antlr.Parser
+	FinalOutbound string
+	RoutingRules  []RoutingRule
+}
+
+func NewRoutingAWalker(parser antlr.Parser) *RoutingAWalker {
+	return &RoutingAWalker{
+		parser: parser,
+	}
+}
+
+type RoutingRule struct {
+	AndFunctions []*Function
+	Outbound     string
+}
+
+func (r *RoutingRule) String(calcN bool) string {
+	var builder strings.Builder
+	var n int
+	for _, f := range r.AndFunctions {
+		if builder.Len() != 0 {
+			builder.WriteString(" && ")
+		}
+		var paramBuilder strings.Builder
+		n += len(f.Params)
+		for _, p := range f.Params {
+			if paramBuilder.Len() != 0 {
+				paramBuilder.WriteString(", ")
+			}
+			if p.Key != "" {
+				paramBuilder.WriteString(p.Key + ": " + p.Val)
+			} else {
+				paramBuilder.WriteString(p.Val)
+			}
+		}
+		builder.WriteString(fmt.Sprintf("%v(%v)", f.Name, paramBuilder.String()))
+	}
+	builder.WriteString(" -> " + r.Outbound)
+	if calcN {
+		builder.WriteString(" [n = " + strconv.Itoa(n) + "]")
+	}
+	builder.WriteString("\n")
+	return builder.String()
+}
+
+type Function struct {
+	Name   string
+	Params []*Param
+}
+type Param struct {
+	Key string
+	Val string
+}
+type paramParser struct {
+	list []*Param
+}
+
+func getValueFromLiteral(literal *routingA.LiteralContext) string {
+	quote := literal.Quote_literal()
+	if quote == nil {
+		return literal.GetText()
+	}
+	text := quote.GetText()
+	return text[1 : len(text)-1]
+}
+
+func (p *paramParser) parseParam(ctx *routingA.ParameterContext) *Param {
+	children := ctx.GetChildren()
+	if len(children) == 3 {
+		return &Param{
+			Key: children[0].(*antlr.TerminalNodeImpl).GetText(),
+			Val: getValueFromLiteral(children[2].(*routingA.LiteralContext)),
+		}
+	} else if len(children) == 1 {
+		return &Param{
+			Key: "",
+			Val: getValueFromLiteral(children[0].(*routingA.LiteralContext)),
+		}
+	}
+	panic("unexpected")
+}
+func (p *paramParser) parseNonEmptyParamList(ctx *routingA.NonEmptyParameterListContext) {
+	children := ctx.GetChildren()
+	if len(children) == 3 {
+		p.list = append(p.list, p.parseParam(children[2].(*routingA.ParameterContext)))
+		p.parseNonEmptyParamList(children[0].(*routingA.NonEmptyParameterListContext))
+	} else if len(children) == 1 {
+		p.list = append(p.list, p.parseParam(children[0].(*routingA.ParameterContext)))
+	}
+}
+
+func (s *RoutingAWalker) parseNonEmptyParamList(list *routingA.NonEmptyParameterListContext) []*Param {
+	paramParser := new(paramParser)
+	paramParser.parseNonEmptyParamList(list)
+	return paramParser.list
+}
+
+func (s *RoutingAWalker) reportKeyUnsupportedError(ctx interface{}, keyName, funcName string) {
+	s.ReportError(ctx, ErrorType_Unsupported, fmt.Sprintf("key %v in %v()", strconv.Quote(keyName), funcName))
+}
+
+func (s *RoutingAWalker) parseFunctionPrototype(ctx *routingA.FunctionPrototypeContext) *Function {
+	children := ctx.GetChildren()
+	funcName := children[0].(*antlr.TerminalNodeImpl).GetText()
+	paramList := children[2].(*routingA.ParameterListContext)
+	children = paramList.GetChildren()
+	if len(children) == 0 {
+		s.ReportError(ctx, ErrorType_Unsupported, "empty parameter list")
+		return nil
+	}
+	nonEmptyParamList := children[0].(*routingA.NonEmptyParameterListContext)
+	params := s.parseNonEmptyParamList(nonEmptyParamList)
+	// Validate function name and param keys.
+	for _, param := range params {
+		switch funcName {
+		case "domain":
+			switch param.Key {
+			case "", "domain", consts.RoutingDomain_Suffix,
+				consts.RoutingDomain_Keyword,
+				"contains",
+				consts.RoutingDomain_Full,
+				consts.RoutingDomain_Regex,
+				"geosite":
+			default:
+				s.reportKeyUnsupportedError(ctx, param.Key, funcName)
+				return nil
+			}
+		case "ip":
+			switch param.Key {
+			case "",
+				"geoip":
+			default:
+				s.reportKeyUnsupportedError(ctx, param.Key, funcName)
+				return nil
+			}
+		case "port", "source", "sourcePort", "network", "ipVersion":
+			if param.Key != "" {
+				s.reportKeyUnsupportedError(ctx, param.Key, funcName)
+				return nil
+			}
+		default:
+			s.ReportError(ctx, ErrorType_Unsupported)
+			return nil
+		}
+	}
+	return &Function{
+		Name:   funcName,
+		Params: params,
+	}
+}
+
+func (s *RoutingAWalker) ReportError(ctx interface{}, errorType ErrorType, target ...string) {
+	bCtx := BaseContext(ctx)
+	tgt := strconv.Quote(bCtx.GetStart().GetText())
+	if len(target) != 0 {
+		tgt = target[0]
+	}
+	if errorType == ErrorType_NotSet {
+		s.parser.NotifyErrorListeners(fmt.Sprintf("%v %v.", tgt, errorType), nil, nil)
+		return
+	}
+	s.parser.NotifyErrorListeners(fmt.Sprintf("%v %v.", tgt, errorType), bCtx.GetStart(), nil)
+}
+
+func (s *RoutingAWalker) EnterDeclaration(ctx *routingA.DeclarationContext) {
+	children := ctx.GetChildren()
+	key := children[0].(*antlr.TerminalNodeImpl).GetText()
+	switch valueCtx := children[2].(type) {
+	case *routingA.LiteralContext:
+		value := getValueFromLiteral(valueCtx)
+		if key == "default" {
+			s.FinalOutbound = value
+		} else {
+			s.ReportError(ctx, ErrorType_Unsupported)
+			return
+		}
+	case *routingA.AssignmentExpressionContext:
+		s.ReportError(valueCtx, ErrorType_Unsupported)
+		return
+	default:
+		s.ReportError(valueCtx, ErrorType_Unsupported)
+		return
+	}
+}
+
+func (s *RoutingAWalker) EnterRoutingRule(ctx *routingA.RoutingRuleContext) {
+	children := ctx.GetChildren()
+	left, ok := children[0].(*routingA.FunctionPrototypeExpressionContext)
+	if !ok {
+		s.ReportError(ctx, ErrorType_Unsupported)
+		return
+	}
+	outbound := children[2].(*routingA.Bare_literalContext).GetText()
+	// Parse functions.
+	var andFunctions []*Function
+	children = left.GetChildren()
+	for _, child := range children {
+		// And rules.
+		if child, ok := child.(*routingA.FunctionPrototypeContext); ok {
+			function := s.parseFunctionPrototype(child)
+			andFunctions = append(andFunctions, function)
+		}
+	}
+	s.RoutingRules = append(s.RoutingRules, RoutingRule{
+		AndFunctions: andFunctions,
+		Outbound:     outbound,
+	})
+}
+
+func (s *RoutingAWalker) EnterRoutingRuleOrDeclarationList(ctx *routingA.RoutingRuleOrDeclarationListContext) {
+	s.ReportError(ctx, ErrorType_Unsupported)
+}
+
+func (s *RoutingAWalker) ExitStart(ctx *routingA.StartContext) {
+	if s.FinalOutbound == "" {
+		s.ReportError(ctx, ErrorType_NotSet, `"default"`)
+	}
+}

go.mod

@@ -0,0 +1,52 @@
+module foo
+
+go 1.19
+
+require (
+	github.com/adrg/xdg v0.4.0
+	github.com/antlr/antlr4/runtime/Go/antlr v1.4.10
+	github.com/cilium/ebpf v0.9.3
+	github.com/gorilla/websocket v1.5.0
+	github.com/json-iterator/go v1.1.12
+	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
+	github.com/mzz2017/softwind v0.0.0-20221204151826-2987e0b05820
+	github.com/nadoo/glider v0.16.2
+	github.com/sagernet/sing-box v1.1.4
+	github.com/sirupsen/logrus v1.9.0
+	github.com/v2fly/v2ray-core/v5 v5.2.1
+	github.com/v2rayA/RoutingA-dist v0.0.1
+	github.com/v2rayA/shadowsocksR v1.0.4
+	github.com/vishvananda/netlink v1.1.0
+	golang.org/x/net v0.5.0
+	golang.org/x/sys v0.4.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/dgryski/go-camellia v0.0.0-20191119043421-69a8a13fb23d // indirect
+	github.com/dgryski/go-idea v0.0.0-20170306091226-d2fb45a411fb // indirect
+	github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165 // indirect
+	github.com/dgryski/go-rc2 v0.0.0-20150621095337-8a9021637152 // indirect
+	github.com/eknkc/basex v1.0.1 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/miekg/dns v1.1.50 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/mzz2017/disk-bloom v1.0.1 // indirect
+	github.com/oschwald/maxminddb-golang v1.10.0 // indirect
+	github.com/sagernet/sing v0.1.6-0.20230113035014-620a4e75cda6 // indirect
+	github.com/sagernet/sing-dns v0.1.2-0.20230113035038-f980624c0c4a // indirect
+	github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb // indirect
+	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
+	gitlab.com/yawning/chacha20.git v0.0.0-20190903091407-6d1cb28dc72c // indirect
+	golang.org/x/crypto v0.5.0 // indirect
+	golang.org/x/mod v0.6.0 // indirect
+	golang.org/x/text v0.6.0 // indirect
+	golang.org/x/tools v0.2.0 // indirect
+	google.golang.org/genproto v0.0.0-20210828152312-66f60bf46e71 // indirect
+	google.golang.org/grpc v1.51.0 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)
+
+replace github.com/mzz2017/softwind => /home/mzz/goProjects/softwind

go.sum

@@ -0,0 +1,254 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/adrg/xdg v0.4.0 h1:RzRqFcjH4nE5C6oTAxhBtoE2IRyjBSa62SCbyPidvls=
+github.com/adrg/xdg v0.4.0/go.mod h1:N6ag73EX4wyxeaoeHctc1mas01KZgsj5tYiAIwqJE/E=
+github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
+github.com/antlr/antlr4/runtime/Go/antlr v1.4.10 h1:yL7+Jz0jTC6yykIK/Wh74gnTJnrGr5AyrNMXuA0gves=
+github.com/antlr/antlr4/runtime/Go/antlr v1.4.10/go.mod h1:F7bn7fEU90QkQ3tnmaTx3LTKLEDqnwWODIYppRQ5hnY=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
+github.com/cilium/ebpf v0.9.3 h1:5KtxXZU+scyERvkJMEm16TbScVvuuMrlhPly78ZMbSc=
+github.com/cilium/ebpf v0.9.3/go.mod h1:w27N4UjpaQ9X/DGrSugxUG+H+NhgntDuPb5lCzxCn8A=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
+github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgryski/go-camellia v0.0.0-20191119043421-69a8a13fb23d h1:CPqTNIigGweVPT4CYb+OO2E6XyRKFOmvTHwWRLgCAlE=
+github.com/dgryski/go-camellia v0.0.0-20191119043421-69a8a13fb23d/go.mod h1:QX5ZVULjAfZJux/W62Y91HvCh9hyW6enAwcrrv/sLj0=
+github.com/dgryski/go-idea v0.0.0-20170306091226-d2fb45a411fb h1:zXpN5126w/mhECTkqazBkrOJIMatbPP71aSIDR5UuW4=
+github.com/dgryski/go-idea v0.0.0-20170306091226-d2fb45a411fb/go.mod h1:F7WkpqJj9t98ePxB/WJGQTIDeOVPuSJ3qdn6JUjg170=
+github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165 h1:BS21ZUJ/B5X2UVUbczfmdWH7GapPWAhxcMsDnjJTU1E=
+github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165/go.mod h1:c9O8+fpSOX1DM8cPNSkX/qsBWdkD4yd2dpciOWQjpBw=
+github.com/dgryski/go-rc2 v0.0.0-20150621095337-8a9021637152 h1:ED31mPIxDJnrLt9W9dH5xgd/6KjzEACKHBVGQ33czc0=
+github.com/dgryski/go-rc2 v0.0.0-20150621095337-8a9021637152/go.mod h1:I9fhc/EvSg88cDxmfQ47v35Ssz9rlFunL/KY0A1JAYI=
+github.com/ebfe/rc2 v0.0.0-20131011165748-24b9757f5521 h1:fBHFH+Y/GPGFGo7LIrErQc3p2MeAhoIQNgaxPWYsSxk=
+github.com/ebfe/rc2 v0.0.0-20131011165748-24b9757f5521/go.mod h1:ucvhdsUCE3TH0LoLRb6ShHiJl8e39dGlx6A4g/ujlow=
+github.com/eknkc/basex v1.0.1 h1:TcyAkqh4oJXgV3WYyL4KEfCMk9W8oJCpmx1bo+jVgKY=
+github.com/eknkc/basex v1.0.1/go.mod h1:k/F/exNEHFdbs3ZHuasoP2E7zeWwZblG84Y7Z59vQRo=
+github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
+github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
+github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
+github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
+github.com/frankban/quicktest v1.14.0 h1:+cqqvzZV87b4adx/5ayVOaYZ2CrvM4ejQvUdBzPPUss=
+github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
+github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
+github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
+github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
+github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
+github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
+github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
+github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/miekg/dns v1.1.50 h1:DQUfb9uc6smULcREF09Uc+/Gd46YWqJd5DbpPE9xkcA=
+github.com/miekg/dns v1.1.50/go.mod h1:e3IlAVfNqAllflbibAZEWOXOQ+Ynzk/dDozDxY7XnME=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
+github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 h1:RWengNIwukTxcDr9M+97sNutRR1RKhG96O6jWumTTnw=
+github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826/go.mod h1:TaXosZuwdSHYgviHp1DAtfrULt5eUgsSMsZf+YrPgl8=
+github.com/mzz2017/disk-bloom v1.0.1 h1:rEF9MiXd9qMW3ibRpqcerLXULoTgRlM21yqqJl1B90M=
+github.com/mzz2017/disk-bloom v1.0.1/go.mod h1:JLHETtUu44Z6iBmsqzkOtFlRvXSlKnxjwiBRDapizDI=
+github.com/nadoo/glider v0.16.2 h1:lF+Bj+Q58UwFcO4cna0lSjemxaN0bc96OdIOndcFNJM=
+github.com/nadoo/glider v0.16.2/go.mod h1:TfmgWSCINk+zrgiu4AW09Z5+4pzTXJdPq4+ifIV2ALw=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
+github.com/oschwald/maxminddb-golang v1.10.0 h1:Xp1u0ZhqkSuopaKmk1WwHtjF0H9Hd9181uj2MQ5Vndg=
+github.com/oschwald/maxminddb-golang v1.10.0/go.mod h1:Y2ELenReaLAZ0b400URyGwvYxHV1dLIxBuyOsyYjHK0=
+github.com/pires/go-proxyproto v0.6.2 h1:KAZ7UteSOt6urjme6ZldyFm4wDe/z0ZUP0Yv0Dos0d8=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
+github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
+github.com/sagernet/sing v0.1.6-0.20230113035014-620a4e75cda6 h1:VlpXOb/DsjjB2QaVVrHNiuonc8P6BKqIWXZp+6ay0Mw=
+github.com/sagernet/sing v0.1.6-0.20230113035014-620a4e75cda6/go.mod h1:JLSXsPTGRJFo/3X7EcAOCUgJH2/gAoxSJgBsnCZRp/w=
+github.com/sagernet/sing-box v1.1.4 h1:r0aH6O+FRXOXuFT883m7oDAEnsHVA07/IUv4G+sp9Vg=
+github.com/sagernet/sing-box v1.1.4/go.mod h1:WPeqli4FXJCm2huw/1/0I14y6lV2JHB55APrDfaShg0=
+github.com/sagernet/sing-dns v0.1.2-0.20230113035038-f980624c0c4a h1:ihqacX1CPMep5bu9eKpciDuhn0qGQYLpFwHBKZbvalw=
+github.com/sagernet/sing-dns v0.1.2-0.20230113035038-f980624c0c4a/go.mod h1:53DucMQB2L/ABsj6F5LvhxH0OzVSKet+uRmvoMNrw1I=
+github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb h1:XfLJSPIOUX+osiMraVgIrMR27uMXnRJWGm1+GL8/63U=
+github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb/go.mod h1:bR6DqgcAl1zTcOX8/pE2Qkj9XO00eCNqmKb7lXP8EAg=
+github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
+github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
+github.com/v2fly/v2ray-core/v5 v5.2.1 h1:bWc0cxvzCbbcsIE7/C+NFeUytQJYWgjtcRMG242I2Rs=
+github.com/v2fly/v2ray-core/v5 v5.2.1/go.mod h1:7MBSerlH+Wyq9Bvm90txc8Ey9C9MAwkM+ZtkMbKT0Zo=
+github.com/v2rayA/RoutingA-dist v0.0.1 h1:ri/57XeFl9JxbJu74s3Rl+7gpDluDU0Gd0nfz37alJk=
+github.com/v2rayA/RoutingA-dist v0.0.1/go.mod h1:i4NF2C9rK5CYt/6Bi6jUwO4Siba3YwRuzZITgqJBSYw=
+github.com/v2rayA/shadowsocksR v1.0.4 h1:65Ltdy+I/DnlkQTJj+R+X85zhZ63ORE1Roy+agAcF/s=
+github.com/v2rayA/shadowsocksR v1.0.4/go.mod h1:CyOhDLy8/AKedsi16xRYAMmkxSCH1ukJPaacaTdRfQg=
+github.com/vishvananda/netlink v1.1.0 h1:1iyaYNBLmP6L0220aDnYQpo1QEV4t4hJ+xEEhhJH8j0=
+github.com/vishvananda/netlink v1.1.0/go.mod h1:cTgwzPIzzgDAYoQrMm0EdrjRUBkTqKYppBueQtXaqoE=
+github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df/go.mod h1:JP3t17pCcGlemwknint6hfoeCVQrEMVwxRLRjXpq+BU=
+github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 h1:gga7acRE695APm9hlsSMoOoE65U4/TcqNj90mc69Rlg=
+github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+gitlab.com/yawning/chacha20.git v0.0.0-20190903091407-6d1cb28dc72c h1:yrfrd1u7MWIwWIulet2TZPEkeNQhQ/GcPLdPXgiEEr0=
+gitlab.com/yawning/chacha20.git v0.0.0-20190903091407-6d1cb28dc72c/go.mod h1:3x6b94nWCP/a2XB/joOPMiGYUBvqbLfeY/BkHLeDs6s=
+go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
+golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE=
+golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
+golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
+golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.6.0 h1:b9gGHsz9/HhJ3HF5DHQytPpuwocVTChQJK3AvoLRD5I=
+golang.org/x/mod v0.6.0/go.mod h1:4mET923SAdbXp2ki8ey+zGs1SLqsuM2Y0uvdZR/fUNI=
+golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.5.0 h1:GyT4nK/YDHSqa1c4753ouYCDajOYKTja9Xb/OHtgvSw=
+golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
+golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20220907140024-f12130a52804 h1:0SH2R3f1b1VmIMG7BXbEZCBUu2dKmHschSmjqGUrW8A=
+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190902133755-9109b7679e13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200217220822-9197077df867/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201202213521-69691e467435/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
+golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.6.0 h1:3XmdazWV+ubf7QgHSTWeykHOci5oeekaGJBLkrkaw4k=
+golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
+golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
+google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210828152312-66f60bf46e71 h1:z+ErRPu0+KS02Td3fOAgdX+lnPDh/VyaABEJPD4JRQs=
+google.golang.org/genproto v0.0.0-20210828152312-66f60bf46e71/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
+google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
+google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
+google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
+google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b h1:QRR6H1YWRnHb4Y/HeNFCTJLFVxaq6wH4YuVdsUOr75U=
+gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

insert.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+dev=docker0
+
+sudo tc qdisc add dev $dev clsact > /dev/null 2>&1
+
+set -ex
+
+# clang -fno-stack-protector -O2 -g -emit-llvm -c component/control/kern/tproxy.c -o - | llc -march=bpf -mcpu=probe -filetype=obj -o foo.o
+clang -O2 -g -Wall -Werror -c component/control/kern/tproxy.c -target bpf -o foo.o
+sudo tc filter del dev $dev ingress
+sudo tc filter add dev $dev ingress bpf direct-action obj foo.o sec tc/ingress
+sudo tc filter del dev $dev egress
+sudo tc filter add dev $dev egress bpf direct-action obj foo.o sec tc/egress
+
+exit 0

main.go

@@ -0,0 +1,49 @@
+//go:build linux
+
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package main
+
+import (
+	"foo/component/control"
+	"foo/pkg/logger"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func main() {
+	const (
+		tproxyPort = 12345
+		ifname     = "docker0"
+	)
+	log := logger.NewLogger(2)
+	log.Println("Running")
+	t, err := control.NewControlPlane(log, `
+default:proxy
+ip(geoip:cn) -> direct
+domain(geosite:cn, domain:"ip.sb") -> direct
+ip("91.105.192.0/23","91.108.4.0/22","91.108.8.0/21","91.108.16.0/21","91.108.56.0/22","95.161.64.0/20","149.154.160.0/20","185.76.151.0/24")->proxy
+`)
+	if err != nil {
+		panic(err)
+	}
+	if err = t.BindLink(ifname); err != nil {
+		panic(err)
+	}
+	sigs := make(chan os.Signal, 1)
+	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGKILL, syscall.SIGILL)
+	go func() {
+		if err := t.ListenAndServe(tproxyPort); err != nil {
+			log.Errorln("ListenAndServe:", err)
+			sigs <- nil
+		}
+	}()
+	<-sigs
+	if e := t.Close(); e != nil {
+		log.Errorln("Close control plane:", err)
+	}
+}

pkg/geodata/common.pb.go

@@ -0,0 +1,801 @@
+// Copied from https://github.com/v2fly/v2ray-core/blob/42b166760b2ba8d984e514b830fcd44e23728e43/app/router/routercommon
+
+package geodata
+
+import (
+	_ "github.com/v2fly/v2ray-core/v5/common/protoext"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// Type of domain value.
+type Domain_Type int32
+
+const (
+	// The value is used as is.
+	Domain_Plain Domain_Type = 0
+	// The value is used as a regular expression.
+	Domain_Regex Domain_Type = 1
+	// The value is a root domain.
+	Domain_RootDomain Domain_Type = 2
+	// The value is a domain.
+	Domain_Full Domain_Type = 3
+)
+
+// Enum value maps for Domain_Type.
+var (
+	Domain_Type_name = map[int32]string{
+		0: "Plain",
+		1: "Regex",
+		2: "RootDomain",
+		3: "Full",
+	}
+	Domain_Type_value = map[string]int32{
+		"Plain":      0,
+		"Regex":      1,
+		"RootDomain": 2,
+		"Full":       3,
+	}
+)
+
+func (x Domain_Type) Enum() *Domain_Type {
+	p := new(Domain_Type)
+	*p = x
+	return p
+}
+
+func (x Domain_Type) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Domain_Type) Descriptor() protoreflect.EnumDescriptor {
+	return file_app_router_routercommon_common_proto_enumTypes[0].Descriptor()
+}
+
+func (Domain_Type) Type() protoreflect.EnumType {
+	return &file_app_router_routercommon_common_proto_enumTypes[0]
+}
+
+func (x Domain_Type) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Domain_Type.Descriptor instead.
+func (Domain_Type) EnumDescriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{0, 0}
+}
+
+// Domain for routing decision.
+type Domain struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Domain matching type.
+	Type Domain_Type `protobuf:"varint,1,opt,name=type,proto3,enum=v2ray.core.app.router.routercommon.Domain_Type" json:"type,omitempty"`
+	// Domain value.
+	Value string `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
+	// Attributes of this domain. May be used for filtering.
+	Attribute []*Domain_Attribute `protobuf:"bytes,3,rep,name=attribute,proto3" json:"attribute,omitempty"`
+}
+
+func (x *Domain) Reset() {
+	*x = Domain{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Domain) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Domain) ProtoMessage() {}
+
+func (x *Domain) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Domain.ProtoReflect.Descriptor instead.
+func (*Domain) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Domain) GetType() Domain_Type {
+	if x != nil {
+		return x.Type
+	}
+	return Domain_Plain
+}
+
+func (x *Domain) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *Domain) GetAttribute() []*Domain_Attribute {
+	if x != nil {
+		return x.Attribute
+	}
+	return nil
+}
+
+// IP for routing decision, in CIDR form.
+type CIDR struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// IP address, should be either 4 or 16 bytes.
+	Ip []byte `protobuf:"bytes,1,opt,name=ip,proto3" json:"ip,omitempty"`
+	// Number of leading ones in the network mask.
+	Prefix uint32 `protobuf:"varint,2,opt,name=prefix,proto3" json:"prefix,omitempty"`
+	IpAddr string `protobuf:"bytes,68000,opt,name=ip_addr,json=ipAddr,proto3" json:"ip_addr,omitempty"`
+}
+
+func (x *CIDR) Reset() {
+	*x = CIDR{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CIDR) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CIDR) ProtoMessage() {}
+
+func (x *CIDR) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CIDR.ProtoReflect.Descriptor instead.
+func (*CIDR) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *CIDR) GetIp() []byte {
+	if x != nil {
+		return x.Ip
+	}
+	return nil
+}
+
+func (x *CIDR) GetPrefix() uint32 {
+	if x != nil {
+		return x.Prefix
+	}
+	return 0
+}
+
+func (x *CIDR) GetIpAddr() string {
+	if x != nil {
+		return x.IpAddr
+	}
+	return ""
+}
+
+type GeoIP struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CountryCode  string  `protobuf:"bytes,1,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
+	Cidr         []*CIDR `protobuf:"bytes,2,rep,name=cidr,proto3" json:"cidr,omitempty"`
+	InverseMatch bool    `protobuf:"varint,3,opt,name=inverse_match,json=inverseMatch,proto3" json:"inverse_match,omitempty"`
+	// resource_hash instruct simplified config converter to load domain from geo file.
+	ResourceHash []byte `protobuf:"bytes,4,opt,name=resource_hash,json=resourceHash,proto3" json:"resource_hash,omitempty"`
+	Code         string `protobuf:"bytes,5,opt,name=code,proto3" json:"code,omitempty"`
+	FilePath     string `protobuf:"bytes,68000,opt,name=file_path,json=filePath,proto3" json:"file_path,omitempty"`
+}
+
+func (x *GeoIP) Reset() {
+	*x = GeoIP{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoIP) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoIP) ProtoMessage() {}
+
+func (x *GeoIP) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GeoIP.ProtoReflect.Descriptor instead.
+func (*GeoIP) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *GeoIP) GetCountryCode() string {
+	if x != nil {
+		return x.CountryCode
+	}
+	return ""
+}
+
+func (x *GeoIP) GetCidr() []*CIDR {
+	if x != nil {
+		return x.Cidr
+	}
+	return nil
+}
+
+func (x *GeoIP) GetInverseMatch() bool {
+	if x != nil {
+		return x.InverseMatch
+	}
+	return false
+}
+
+func (x *GeoIP) GetResourceHash() []byte {
+	if x != nil {
+		return x.ResourceHash
+	}
+	return nil
+}
+
+func (x *GeoIP) GetCode() string {
+	if x != nil {
+		return x.Code
+	}
+	return ""
+}
+
+func (x *GeoIP) GetFilePath() string {
+	if x != nil {
+		return x.FilePath
+	}
+	return ""
+}
+
+type GeoIPList struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Entry []*GeoIP `protobuf:"bytes,1,rep,name=entry,proto3" json:"entry,omitempty"`
+}
+
+func (x *GeoIPList) Reset() {
+	*x = GeoIPList{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoIPList) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoIPList) ProtoMessage() {}
+
+func (x *GeoIPList) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GeoIPList.ProtoReflect.Descriptor instead.
+func (*GeoIPList) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *GeoIPList) GetEntry() []*GeoIP {
+	if x != nil {
+		return x.Entry
+	}
+	return nil
+}
+
+type GeoSite struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CountryCode string    `protobuf:"bytes,1,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
+	Domain      []*Domain `protobuf:"bytes,2,rep,name=domain,proto3" json:"domain,omitempty"`
+	// resource_hash instruct simplified config converter to load domain from geo file.
+	ResourceHash []byte `protobuf:"bytes,3,opt,name=resource_hash,json=resourceHash,proto3" json:"resource_hash,omitempty"`
+	Code         string `protobuf:"bytes,4,opt,name=code,proto3" json:"code,omitempty"`
+	FilePath     string `protobuf:"bytes,68000,opt,name=file_path,json=filePath,proto3" json:"file_path,omitempty"`
+}
+
+func (x *GeoSite) Reset() {
+	*x = GeoSite{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoSite) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoSite) ProtoMessage() {}
+
+func (x *GeoSite) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GeoSite.ProtoReflect.Descriptor instead.
+func (*GeoSite) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *GeoSite) GetCountryCode() string {
+	if x != nil {
+		return x.CountryCode
+	}
+	return ""
+}
+
+func (x *GeoSite) GetDomain() []*Domain {
+	if x != nil {
+		return x.Domain
+	}
+	return nil
+}
+
+func (x *GeoSite) GetResourceHash() []byte {
+	if x != nil {
+		return x.ResourceHash
+	}
+	return nil
+}
+
+func (x *GeoSite) GetCode() string {
+	if x != nil {
+		return x.Code
+	}
+	return ""
+}
+
+func (x *GeoSite) GetFilePath() string {
+	if x != nil {
+		return x.FilePath
+	}
+	return ""
+}
+
+type GeoSiteList struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Entry []*GeoSite `protobuf:"bytes,1,rep,name=entry,proto3" json:"entry,omitempty"`
+}
+
+func (x *GeoSiteList) Reset() {
+	*x = GeoSiteList{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoSiteList) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoSiteList) ProtoMessage() {}
+
+func (x *GeoSiteList) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GeoSiteList.ProtoReflect.Descriptor instead.
+func (*GeoSiteList) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *GeoSiteList) GetEntry() []*GeoSite {
+	if x != nil {
+		return x.Entry
+	}
+	return nil
+}
+
+type Domain_Attribute struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
+	// Types that are assignable to TypedValue:
+	//
+	//	*Domain_Attribute_BoolValue
+	//	*Domain_Attribute_IntValue
+	TypedValue isDomain_Attribute_TypedValue `protobuf_oneof:"typed_value"`
+}
+
+func (x *Domain_Attribute) Reset() {
+	*x = Domain_Attribute{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_router_routercommon_common_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Domain_Attribute) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Domain_Attribute) ProtoMessage() {}
+
+func (x *Domain_Attribute) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_routercommon_common_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Domain_Attribute.ProtoReflect.Descriptor instead.
+func (*Domain_Attribute) Descriptor() ([]byte, []int) {
+	return file_app_router_routercommon_common_proto_rawDescGZIP(), []int{0, 0}
+}
+
+func (x *Domain_Attribute) GetKey() string {
+	if x != nil {
+		return x.Key
+	}
+	return ""
+}
+
+func (m *Domain_Attribute) GetTypedValue() isDomain_Attribute_TypedValue {
+	if m != nil {
+		return m.TypedValue
+	}
+	return nil
+}
+
+func (x *Domain_Attribute) GetBoolValue() bool {
+	if x, ok := x.GetTypedValue().(*Domain_Attribute_BoolValue); ok {
+		return x.BoolValue
+	}
+	return false
+}
+
+func (x *Domain_Attribute) GetIntValue() int64 {
+	if x, ok := x.GetTypedValue().(*Domain_Attribute_IntValue); ok {
+		return x.IntValue
+	}
+	return 0
+}
+
+type isDomain_Attribute_TypedValue interface {
+	isDomain_Attribute_TypedValue()
+}
+
+type Domain_Attribute_BoolValue struct {
+	BoolValue bool `protobuf:"varint,2,opt,name=bool_value,json=boolValue,proto3,oneof"`
+}
+
+type Domain_Attribute_IntValue struct {
+	IntValue int64 `protobuf:"varint,3,opt,name=int_value,json=intValue,proto3,oneof"`
+}
+
+func (*Domain_Attribute_BoolValue) isDomain_Attribute_TypedValue() {}
+
+func (*Domain_Attribute_IntValue) isDomain_Attribute_TypedValue() {}
+
+var File_app_router_routercommon_common_proto protoreflect.FileDescriptor
+
+var file_app_router_routercommon_common_proto_rawDesc = []byte{
+	0x0a, 0x24, 0x61, 0x70, 0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2f, 0x72, 0x6f, 0x75,
+	0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,
+	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x22, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f,
+	0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x72, 0x6f,
+	0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x1a, 0x20, 0x63, 0x6f, 0x6d, 0x6d,
+	0x6f, 0x6e, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x65, 0x78, 0x74, 0x2f, 0x65, 0x78, 0x74, 0x65,
+	0x6e, 0x73, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xdd, 0x02, 0x0a,
+	0x06, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x43, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18,
+	0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x2f, 0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f,
+	0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x72, 0x6f,
+	0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x2e, 0x54, 0x79, 0x70, 0x65, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x14, 0x0a, 0x05,
+	0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c,
+	0x75, 0x65, 0x12, 0x52, 0x0a, 0x09, 0x61, 0x74, 0x74, 0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x18,
+	0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x34, 0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f,
+	0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x72, 0x6f,
+	0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x2e, 0x41, 0x74, 0x74, 0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x52, 0x09, 0x61, 0x74, 0x74,
+	0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x1a, 0x6c, 0x0a, 0x09, 0x41, 0x74, 0x74, 0x72, 0x69, 0x62,
+	0x75, 0x74, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x1f, 0x0a, 0x0a, 0x62, 0x6f, 0x6f, 0x6c, 0x5f, 0x76, 0x61,
+	0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x08, 0x48, 0x00, 0x52, 0x09, 0x62, 0x6f, 0x6f,
+	0x6c, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x12, 0x1d, 0x0a, 0x09, 0x69, 0x6e, 0x74, 0x5f, 0x76, 0x61,
+	0x6c, 0x75, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x03, 0x48, 0x00, 0x52, 0x08, 0x69, 0x6e, 0x74,
+	0x56, 0x61, 0x6c, 0x75, 0x65, 0x42, 0x0d, 0x0a, 0x0b, 0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x76,
+	0x61, 0x6c, 0x75, 0x65, 0x22, 0x36, 0x0a, 0x04, 0x54, 0x79, 0x70, 0x65, 0x12, 0x09, 0x0a, 0x05,
+	0x50, 0x6c, 0x61, 0x69, 0x6e, 0x10, 0x00, 0x12, 0x09, 0x0a, 0x05, 0x52, 0x65, 0x67, 0x65, 0x78,
+	0x10, 0x01, 0x12, 0x0e, 0x0a, 0x0a, 0x52, 0x6f, 0x6f, 0x74, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e,
+	0x10, 0x02, 0x12, 0x08, 0x0a, 0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x03, 0x22, 0x53, 0x0a, 0x04,
+	0x43, 0x49, 0x44, 0x52, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x70, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c,
+	0x52, 0x02, 0x69, 0x70, 0x12, 0x16, 0x0a, 0x06, 0x70, 0x72, 0x65, 0x66, 0x69, 0x78, 0x18, 0x02,
+	0x20, 0x01, 0x28, 0x0d, 0x52, 0x06, 0x70, 0x72, 0x65, 0x66, 0x69, 0x78, 0x12, 0x23, 0x0a, 0x07,
+	0x69, 0x70, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x18, 0xa0, 0x93, 0x04, 0x20, 0x01, 0x28, 0x09, 0x42,
+	0x08, 0x82, 0xb5, 0x18, 0x04, 0x3a, 0x02, 0x69, 0x70, 0x52, 0x06, 0x69, 0x70, 0x41, 0x64, 0x64,
+	0x72, 0x22, 0xfa, 0x01, 0x0a, 0x05, 0x47, 0x65, 0x6f, 0x49, 0x50, 0x12, 0x21, 0x0a, 0x0c, 0x63,
+	0x6f, 0x75, 0x6e, 0x74, 0x72, 0x79, 0x5f, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x0b, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x72, 0x79, 0x43, 0x6f, 0x64, 0x65, 0x12, 0x3c,
+	0x0a, 0x04, 0x63, 0x69, 0x64, 0x72, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x28, 0x2e, 0x76,
+	0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f,
+	0x75, 0x74, 0x65, 0x72, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f,
+	0x6e, 0x2e, 0x43, 0x49, 0x44, 0x52, 0x52, 0x04, 0x63, 0x69, 0x64, 0x72, 0x12, 0x23, 0x0a, 0x0d,
+	0x69, 0x6e, 0x76, 0x65, 0x72, 0x73, 0x65, 0x5f, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x08, 0x52, 0x0c, 0x69, 0x6e, 0x76, 0x65, 0x72, 0x73, 0x65, 0x4d, 0x61, 0x74, 0x63,
+	0x68, 0x12, 0x23, 0x0a, 0x0d, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x5f, 0x68, 0x61,
+	0x73, 0x68, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x0c, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72,
+	0x63, 0x65, 0x48, 0x61, 0x73, 0x68, 0x12, 0x12, 0x0a, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x05,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x12, 0x32, 0x0a, 0x09, 0x66, 0x69,
+	0x6c, 0x65, 0x5f, 0x70, 0x61, 0x74, 0x68, 0x18, 0xa0, 0x93, 0x04, 0x20, 0x01, 0x28, 0x09, 0x42,
+	0x13, 0x82, 0xb5, 0x18, 0x0f, 0x32, 0x0d, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x5f,
+	0x68, 0x61, 0x73, 0x68, 0x52, 0x08, 0x66, 0x69, 0x6c, 0x65, 0x50, 0x61, 0x74, 0x68, 0x22, 0x4c,
+	0x0a, 0x09, 0x47, 0x65, 0x6f, 0x49, 0x50, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x3f, 0x0a, 0x05, 0x65,
+	0x6e, 0x74, 0x72, 0x79, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x29, 0x2e, 0x76, 0x32, 0x72,
+	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74,
+	0x65, 0x72, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e,
+	0x47, 0x65, 0x6f, 0x49, 0x50, 0x52, 0x05, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x22, 0xdd, 0x01, 0x0a,
+	0x07, 0x47, 0x65, 0x6f, 0x53, 0x69, 0x74, 0x65, 0x12, 0x21, 0x0a, 0x0c, 0x63, 0x6f, 0x75, 0x6e,
+	0x74, 0x72, 0x79, 0x5f, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b,
+	0x63, 0x6f, 0x75, 0x6e, 0x74, 0x72, 0x79, 0x43, 0x6f, 0x64, 0x65, 0x12, 0x42, 0x0a, 0x06, 0x64,
+	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x2a, 0x2e, 0x76, 0x32,
+	0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75,
+	0x74, 0x65, 0x72, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,
+	0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x52, 0x06, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12,
+	0x23, 0x0a, 0x0d, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x5f, 0x68, 0x61, 0x73, 0x68,
+	0x18, 0x03, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x0c, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65,
+	0x48, 0x61, 0x73, 0x68, 0x12, 0x12, 0x0a, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01,
+	0x28, 0x09, 0x52, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x12, 0x32, 0x0a, 0x09, 0x66, 0x69, 0x6c, 0x65,
+	0x5f, 0x70, 0x61, 0x74, 0x68, 0x18, 0xa0, 0x93, 0x04, 0x20, 0x01, 0x28, 0x09, 0x42, 0x13, 0x82,
+	0xb5, 0x18, 0x0f, 0x32, 0x0d, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x5f, 0x68, 0x61,
+	0x73, 0x68, 0x52, 0x08, 0x66, 0x69, 0x6c, 0x65, 0x50, 0x61, 0x74, 0x68, 0x22, 0x50, 0x0a, 0x0b,
+	0x47, 0x65, 0x6f, 0x53, 0x69, 0x74, 0x65, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x41, 0x0a, 0x05, 0x65,
+	0x6e, 0x74, 0x72, 0x79, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x2b, 0x2e, 0x76, 0x32, 0x72,
+	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74,
+	0x65, 0x72, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e,
+	0x47, 0x65, 0x6f, 0x53, 0x69, 0x74, 0x65, 0x52, 0x05, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x42, 0x87,
+	0x01, 0x0a, 0x26, 0x63, 0x6f, 0x6d, 0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72,
+	0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x72, 0x6f, 0x75,
+	0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x50, 0x01, 0x5a, 0x36, 0x67, 0x69, 0x74,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x76, 0x32, 0x66, 0x6c, 0x79, 0x2f, 0x76, 0x32,
+	0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x76, 0x35, 0x2f, 0x61, 0x70, 0x70, 0x2f,
+	0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x63, 0x6f, 0x6d,
+	0x6d, 0x6f, 0x6e, 0xaa, 0x02, 0x22, 0x56, 0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72, 0x65,
+	0x2e, 0x41, 0x70, 0x70, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x52, 0x6f, 0x75, 0x74,
+	0x65, 0x72, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_app_router_routercommon_common_proto_rawDescOnce sync.Once
+	file_app_router_routercommon_common_proto_rawDescData = file_app_router_routercommon_common_proto_rawDesc
+)
+
+func file_app_router_routercommon_common_proto_rawDescGZIP() []byte {
+	file_app_router_routercommon_common_proto_rawDescOnce.Do(func() {
+		file_app_router_routercommon_common_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_router_routercommon_common_proto_rawDescData)
+	})
+	return file_app_router_routercommon_common_proto_rawDescData
+}
+
+var file_app_router_routercommon_common_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_app_router_routercommon_common_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_app_router_routercommon_common_proto_goTypes = []interface{}{
+	(Domain_Type)(0),         // 0: v2ray.core.app.router.routercommon.Domain.Type
+	(*Domain)(nil),           // 1: v2ray.core.app.router.routercommon.Domain
+	(*CIDR)(nil),             // 2: v2ray.core.app.router.routercommon.CIDR
+	(*GeoIP)(nil),            // 3: v2ray.core.app.router.routercommon.GeoIP
+	(*GeoIPList)(nil),        // 4: v2ray.core.app.router.routercommon.GeoIPList
+	(*GeoSite)(nil),          // 5: v2ray.core.app.router.routercommon.GeoSite
+	(*GeoSiteList)(nil),      // 6: v2ray.core.app.router.routercommon.GeoSiteList
+	(*Domain_Attribute)(nil), // 7: v2ray.core.app.router.routercommon.Domain.Attribute
+}
+var file_app_router_routercommon_common_proto_depIdxs = []int32{
+	0, // 0: v2ray.core.app.router.routercommon.Domain.type:type_name -> v2ray.core.app.router.routercommon.Domain.Type
+	7, // 1: v2ray.core.app.router.routercommon.Domain.attribute:type_name -> v2ray.core.app.router.routercommon.Domain.Attribute
+	2, // 2: v2ray.core.app.router.routercommon.GeoIP.cidr:type_name -> v2ray.core.app.router.routercommon.CIDR
+	3, // 3: v2ray.core.app.router.routercommon.GeoIPList.entry:type_name -> v2ray.core.app.router.routercommon.GeoIP
+	1, // 4: v2ray.core.app.router.routercommon.GeoSite.domain:type_name -> v2ray.core.app.router.routercommon.Domain
+	5, // 5: v2ray.core.app.router.routercommon.GeoSiteList.entry:type_name -> v2ray.core.app.router.routercommon.GeoSite
+	6, // [6:6] is the sub-list for method output_type
+	6, // [6:6] is the sub-list for method input_type
+	6, // [6:6] is the sub-list for extension type_name
+	6, // [6:6] is the sub-list for extension extendee
+	0, // [0:6] is the sub-list for field type_name
+}
+
+func init() { file_app_router_routercommon_common_proto_init() }
+func file_app_router_routercommon_common_proto_init() {
+	if File_app_router_routercommon_common_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_router_routercommon_common_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Domain); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_router_routercommon_common_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CIDR); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_router_routercommon_common_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoIP); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_router_routercommon_common_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoIPList); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_router_routercommon_common_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoSite); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_router_routercommon_common_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoSiteList); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_router_routercommon_common_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Domain_Attribute); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_app_router_routercommon_common_proto_msgTypes[6].OneofWrappers = []interface{}{
+		(*Domain_Attribute_BoolValue)(nil),
+		(*Domain_Attribute_IntValue)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_app_router_routercommon_common_proto_rawDesc,
+			NumEnums:      1,
+			NumMessages:   7,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_app_router_routercommon_common_proto_goTypes,
+		DependencyIndexes: file_app_router_routercommon_common_proto_depIdxs,
+		EnumInfos:         file_app_router_routercommon_common_proto_enumTypes,
+		MessageInfos:      file_app_router_routercommon_common_proto_msgTypes,
+	}.Build()
+	File_app_router_routercommon_common_proto = out.File
+	file_app_router_routercommon_common_proto_rawDesc = nil
+	file_app_router_routercommon_common_proto_goTypes = nil
+	file_app_router_routercommon_common_proto_depIdxs = nil
+}

pkg/geodata/decode.go

@@ -0,0 +1,111 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+// Modified from https://github.com/v2fly/v2ray-core/blob/42b166760b2ba8d984e514b830fcd44e23728e43/infra/conf/geodata/memconservative
+
+package geodata
+
+import (
+	"errors"
+	"fmt"
+	"google.golang.org/protobuf/encoding/protowire"
+	"io"
+	"os"
+	"strings"
+)
+
+var (
+	errFailedToReadBytes            = errors.New("failed to read bytes")
+	errFailedToReadExpectedLenBytes = errors.New("failed to read expected length of bytes")
+	errInvalidGeodataFile           = errors.New("invalid geodata file")
+	errInvalidGeodataVarintLength   = errors.New("invalid geodata varint length")
+	errCodeNotFound                 = errors.New("code not found")
+)
+
+func emitBytes(f io.ReadSeeker, code string) ([]byte, error) {
+	count := 1
+	isInner := false
+	tempContainer := make([]byte, 0, 5)
+
+	var result []byte
+	var advancedN uint64 = 1
+	var geoDataVarintLength, codeVarintLength, varintLenByteLen uint64 = 0, 0, 0
+
+Loop:
+	for {
+		container := make([]byte, advancedN)
+		bytesRead, err := f.Read(container)
+		if err == io.EOF {
+			return nil, errCodeNotFound
+		}
+		if err != nil {
+			return nil, errFailedToReadBytes
+		}
+		if bytesRead != len(container) {
+			return nil, errFailedToReadExpectedLenBytes
+		}
+
+		switch count {
+		case 1, 3: // data type ((field_number << 3) | wire_type)
+			if container[0] != 10 { // byte `0A` equals to `10` in decimal
+				return nil, errInvalidGeodataFile
+			}
+			advancedN = 1
+			count++
+		case 2, 4: // data length
+			tempContainer = append(tempContainer, container...)
+			if container[0] > 127 { // max one-byte-length byte `7F`(0FFF FFFF) equals to `127` in decimal
+				advancedN = 1
+				goto Loop
+			}
+			lenVarint, n := protowire.ConsumeVarint(tempContainer)
+			if n < 0 {
+				return nil, errInvalidGeodataVarintLength
+			}
+			tempContainer = nil
+			if !isInner {
+				isInner = true
+				geoDataVarintLength = lenVarint
+				advancedN = 1
+			} else {
+				isInner = false
+				codeVarintLength = lenVarint
+				varintLenByteLen = uint64(n)
+				advancedN = codeVarintLength
+			}
+			count++
+		case 5: // data value
+			if strings.EqualFold(string(container), code) {
+				count++
+				offset := -(1 + int64(varintLenByteLen) + int64(codeVarintLength))
+				f.Seek(offset, 1)               // back to the start of GeoIP or GeoSite varint
+				advancedN = geoDataVarintLength // the number of bytes to be read in next round
+			} else {
+				count = 1
+				offset := int64(geoDataVarintLength) - int64(codeVarintLength) - int64(varintLenByteLen) - 1
+				f.Seek(offset, 1) // skip the unmatched GeoIP or GeoSite varint
+				advancedN = 1     // the next round will be the start of another GeoIPList or GeoSiteList
+			}
+		case 6: // matched GeoIP or GeoSite varint
+			result = container
+			break Loop
+		}
+	}
+	return result, nil
+}
+
+func Decode(filename, code string) ([]byte, error) {
+	f, err := os.Open(filename)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open file: %v: %w", filename, err)
+	}
+	defer f.Close()
+
+	geoBytes, err := emitBytes(f, code)
+	if err != nil {
+		return nil, err
+	}
+	return geoBytes, nil
+}

pkg/geodata/geodata.go

@@ -0,0 +1,90 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+// Modified from https://github.com/v2fly/v2ray-core/blob/42b166760b2ba8d984e514b830fcd44e23728e43/infra/conf/geodata/memconservative
+
+package geodata
+
+import (
+	"fmt"
+	"github.com/sirupsen/logrus"
+	"google.golang.org/protobuf/proto"
+	"os"
+	"strings"
+)
+
+func UnmarshalGeoIp(log *logrus.Logger, filepath, code string) (*GeoIP, error) {
+	geoipBytes, err := Decode(filepath, code)
+	switch err {
+	case nil:
+		var geoip GeoIP
+		if err := proto.Unmarshal(geoipBytes, &geoip); err != nil {
+			return nil, err
+		}
+		return &geoip, nil
+
+	case errCodeNotFound:
+		return nil, fmt.Errorf("country code %v not found in %v", code, filepath)
+
+	case errFailedToReadBytes, errFailedToReadExpectedLenBytes,
+		errInvalidGeodataFile, errInvalidGeodataVarintLength:
+		log.Warnln("failed to decode geoip file: ", filepath, ", fallback to the original ReadFile method")
+		geoipBytes, err = os.ReadFile(filepath)
+		if err != nil {
+			return nil, err
+		}
+		var geoipList GeoIPList
+		if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
+			return nil, err
+		}
+		for _, geoip := range geoipList.GetEntry() {
+			if strings.EqualFold(code, geoip.GetCountryCode()) {
+				return geoip, nil
+			}
+		}
+
+	default:
+		return nil, err
+	}
+
+	return nil, fmt.Errorf("country code %v not found in %v", code, filepath)
+}
+
+func UnmarshalGeoSite(log *logrus.Logger, filepath, code string) (*GeoSite, error) {
+	geositeBytes, err := Decode(filepath, code)
+	switch err {
+	case nil:
+		var geosite GeoSite
+		if err := proto.Unmarshal(geositeBytes, &geosite); err != nil {
+			return nil, err
+		}
+		return &geosite, nil
+
+	case errCodeNotFound:
+		return nil, fmt.Errorf("list %V not found in %v", code, filepath)
+
+	case errFailedToReadBytes, errFailedToReadExpectedLenBytes,
+		errInvalidGeodataFile, errInvalidGeodataVarintLength:
+		log.Warnln("failed to decode geoip file: ", filepath, ", fallback to the original ReadFile method")
+		geositeBytes, err = os.ReadFile(filepath)
+		if err != nil {
+			return nil, err
+		}
+		var geositeList GeoSiteList
+		if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
+			return nil, err
+		}
+		for _, geosite := range geositeList.GetEntry() {
+			if strings.EqualFold(code, geosite.GetCountryCode()) {
+				return geosite, nil
+			}
+		}
+
+	default:
+		return nil, err
+	}
+
+	return nil, fmt.Errorf("list %v not found in %v", code, filepath)
+}

pkg/logger/logger.go

@@ -0,0 +1,25 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2023, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+package logger
+
+import "github.com/sirupsen/logrus"
+
+func NewLogger(verbose int) *logrus.Logger {
+	log := logrus.New()
+
+	var level logrus.Level
+	switch verbose {
+	case 0:
+		level = logrus.WarnLevel
+	case 1:
+		level = logrus.InfoLevel
+	default:
+		level = logrus.TraceLevel
+	}
+	log.SetLevel(level)
+
+	return log
+}

pkg/pool/pool.go

@@ -0,0 +1,72 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) since 2022, mzz2017 (mzz@tuta.io). All rights reserved.
+ */
+
+// modified from https://github.com/nadoo/glider/blob/master/pool/buffer.go
+
+package pool
+
+import (
+	"math/bits"
+	"sync"
+)
+
+const (
+	// number of pools.
+	num     = 17
+	maxsize = 1 << (num - 1)
+)
+
+var (
+	sizes [num]int
+	pools [num]sync.Pool
+)
+
+func init() {
+	for i := 0; i < num; i++ {
+		size := 1 << i
+		sizes[i] = size
+		pools[i].New = func() interface{} {
+			return make([]byte, size)
+		}
+	}
+}
+
+func GetClosestN(need int) (n int) {
+	// if need is exactly 2^n, return n-1
+	if need&(need-1) == 0 {
+		return bits.Len32(uint32(need)) - 1
+	}
+	// or return its closest n
+	return bits.Len32(uint32(need))
+}
+
+// Get gets a buffer from pool, size should in range: [1, 65536],
+// otherwise, this function will call make([]byte, size) directly.
+func Get(size int) []byte {
+	if size >= 1 && size <= maxsize {
+		i := GetClosestN(size)
+		return pools[i].Get().([]byte)[:size]
+	}
+	return make([]byte, size)
+}
+
+// GetZero returns buffer and set all the values to 0
+func GetZero(size int) []byte {
+	b := Get(size)
+	for i := range b {
+		b[i] = 0
+	}
+	return b
+}
+
+// Put puts a buffer into pool.
+func Put(buf []byte) {
+	if size := cap(buf); size >= 1 && size <= maxsize {
+		i := GetClosestN(size)
+		if i < num {
+			pools[i].Put(buf)
+		}
+	}
+}