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refactor: reuse existing functions & format code (#641)

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Integral 2024-09-18 12:20:37 +00:00 committed by GitHub
parent 3b2ae3add3
commit ff62fae5c5
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1 changed files with 13 additions and 11 deletions
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24
control/kern/tproxy.c
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@ -1639,17 +1639,23 @@ int tproxy_dae0_ingress(struct __sk_buff *skb)
struct redirect_tuple redirect_tuple = {};
if (skb->protocol == bpf_htons(ETH_P_IP)) {
bpf_skb_load_bytes(skb, ETH_HLEN + offsetof(struct iphdr, daddr),
bpf_skb_load_bytes(skb,
ETH_HLEN + offsetof(struct iphdr, daddr),
&redirect_tuple.sip.u6_addr32[3],
sizeof(redirect_tuple.sip.u6_addr32[3]));
bpf_skb_load_bytes(skb, ETH_HLEN + offsetof(struct iphdr, saddr),
bpf_skb_load_bytes(skb,
ETH_HLEN + offsetof(struct iphdr, saddr),
&redirect_tuple.dip.u6_addr32[3],
sizeof(redirect_tuple.dip.u6_addr32[3]));
} else {
bpf_skb_load_bytes(skb, ETH_HLEN + offsetof(struct ipv6hdr, daddr),
&redirect_tuple.sip, sizeof(redirect_tuple.sip));
bpf_skb_load_bytes(skb, ETH_HLEN + offsetof(struct ipv6hdr, saddr),
&redirect_tuple.dip, sizeof(redirect_tuple.dip));
bpf_skb_load_bytes(skb,
ETH_HLEN + offsetof(struct ipv6hdr, daddr),
&redirect_tuple.sip,
sizeof(redirect_tuple.sip));
bpf_skb_load_bytes(skb,
ETH_HLEN + offsetof(struct ipv6hdr, saddr),
&redirect_tuple.dip,
sizeof(redirect_tuple.dip));
}
struct redirect_entry *redirect_entry =
bpf_map_lookup_elem(&redirect_track, &redirect_tuple);
@ -1872,11 +1878,7 @@ int local_tcp_sockops(struct bpf_sock_ops *skops)
{
struct tuples_key rev_tuple = {};
rev_tuple.l4proto = IPPROTO_TCP;
rev_tuple.sport = tuple.dport;
rev_tuple.dport = tuple.sport;
__builtin_memcpy(&rev_tuple.sip, &tuple.dip, IPV6_BYTE_LENGTH);
__builtin_memcpy(&rev_tuple.dip, &tuple.sip, IPV6_BYTE_LENGTH);
copy_reversed_tuples(&tuple, &rev_tuple);
struct routing_result *routing_result;