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Fix ebpf tcp ipv6

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This commit is contained in:
Vladimir Stoilov 2023-08-18 09:51:12 +03:00
parent f622f6c995
commit 18f884b757
3 changed files with 14 additions and 13 deletions
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firewall/interception/ebpf/bandwidth/bpf_bpfeb.o
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firewall/interception/ebpf/bandwidth/bpf_bpfel.o
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27
firewall/interception/ebpf/programs/bandwidth.c
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@ -76,24 +76,25 @@ int socket_operations(struct bpf_sock_ops *skops) {
bpf_map_update_elem(&pm_bandwidth_map, &key, &newInfo, BPF_ANY);
} else if(sk->family == AF_INET6){
// Generate key for IPv6
for(int i = 0; i < 4; i++) {
key.src_ip[i] = sk->src_ip6[i];
}
key.src_ip[0] = sk->src_ip6[0];
key.src_ip[1] = sk->src_ip6[1];
key.src_ip[2] = sk->src_ip6[2];
key.src_ip[3] = sk->src_ip6[3];
key.src_port = sk->src_port;
for(int i = 0; i < 4; i++) {
key.dst_ip[i] = sk->dst_ip6[i];
}
key.dst_ip[0] = sk->dst_ip6[0];
key.dst_ip[1] = sk->dst_ip6[1];
key.dst_ip[2] = sk->dst_ip6[2];
key.dst_ip[3] = sk->dst_ip6[3];
key.dst_port = __builtin_bswap16(sk->dst_port);
key.ipv6 = 1;
// FIXME: This should be added here too, but loading the ebpf module fails if we add it.
// This 100% the same thing as above. No clue, man.
struct sk_info newInfo = {0};
newInfo.rx = skops->bytes_received;
newInfo.tx = skops->bytes_acked;
// struct sk_info newInfo = {0};
// newInfo.rx = skops->bytes_received;
// newInfo.tx = skops->bytes_acked;
// bpf_map_update_elem(&pm_bandwidth_map, &key, &newInfo, BPF_ANY);
bpf_map_update_elem(&pm_bandwidth_map, &key, &newInfo, BPF_ANY);
}
return 0;