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Split raw socket logic from iptables kernel module, add udp over ipv6

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This commit is contained in:
Vadim Vetrov
2024-09-01 19:56:38 +03:00
parent 731da0dd50
commit 5e327497bb
8 changed files with 344 additions and 249 deletions
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10
mangle.c
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@@ -56,7 +56,7 @@ int process_packet(const uint8_t *raw_payload, uint32_t raw_payload_len) {
case IPPROTO_TCP:
return process_tcp_packet(raw_payload, raw_payload_len);
case IPPROTO_UDP:
return process_udp4_packet(raw_payload, raw_payload_len);
return process_udp_packet(raw_payload, raw_payload_len);
default:
goto accept;
}
@@ -290,15 +290,15 @@ drop:
return PKT_DROP;
}
int process_udp4_packet(const uint8_t *pkt, uint32_t pktlen) {
const struct iphdr *iph;
int process_udp_packet(const uint8_t *pkt, uint32_t pktlen) {
const void *iph;
uint32_t iph_len;
const struct udphdr *udph;
const uint8_t *data;
uint32_t dlen;
int ret = udp4_payload_split((uint8_t *)pkt, pktlen,
(struct iphdr **)&iph, &iph_len,
int ret = udp_payload_split((uint8_t *)pkt, pktlen,
(void **)&iph, &iph_len,
(struct udphdr **)&udph,
(uint8_t **)&data, &dlen);