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Fix #2600

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This commit is contained in:
Max Lv
2020-01-19 18:13:18 +08:00
parent d31fba3deb
commit 4f577a0d31
1 changed files with 16 additions and 12 deletions
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src/udprelay.c
+16 -12
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@@ -150,6 +150,10 @@ set_nosigpipe(int socket_fd)
#define IP_TRANSPARENT 19
#endif
#ifndef IPV6_TRANSPARENT
#define IPV6_TRANSPARENT 75
#endif
#ifndef IP_RECVORIGDSTADDR
#ifdef IP_ORIGDSTADDR
#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
@@ -508,18 +512,17 @@ create_server_socket(const char *host, const char *port)
#endif
#ifdef MODULE_REDIR
if (setsockopt(server_sock, SOL_IP, IP_TRANSPARENT, &opt, sizeof(opt))) {
int sol = rp->ai_family == AF_INET ? SOL_IP : SOL_IPV6;
int flag_t = rp->ai_family == AF_INET ? IP_TRANSPARENT : IPV6_TRANSPARENT;
int flag_r = rp->ai_family == AF_INET ? IP_RECVORIGDSTADDR : IPV6_TRANSPARENT;
if (setsockopt(server_sock, sol, flag_t, &opt, sizeof(opt))) {
ERROR("[udp] setsockopt IP_TRANSPARENT");
exit(EXIT_FAILURE);
}
if (rp->ai_family == AF_INET) {
if (setsockopt(server_sock, SOL_IP, IP_RECVORIGDSTADDR, &opt, sizeof(opt))) {
FATAL("[udp] setsockopt IP_RECVORIGDSTADDR");
}
} else if (rp->ai_family == AF_INET6) {
if (setsockopt(server_sock, SOL_IPV6, IPV6_RECVORIGDSTADDR, &opt, sizeof(opt))) {
FATAL("[udp] setsockopt IPV6_RECVORIGDSTADDR");
}
if (setsockopt(server_sock, SOL_IP, flag_r, &opt, sizeof(opt))) {
FATAL("[udp] setsockopt IP_RECVORIGDSTADDR");
}
#endif
@@ -844,9 +847,10 @@ remote_recv_cb(EV_P_ ev_io *w, int revents)
ERROR("[udp] remote_recv_socket");
goto CLEAN_UP;
}
int opt = 1;
int sol = remote_ctx->src_addr.ss_family == AF_INET6 ? SOL_IPV6 : SOL_IP;
if (setsockopt(src_fd, sol, IP_TRANSPARENT, &opt, sizeof(opt))) {
int opt = 1;
int sol = remote_ctx->src_addr.ss_family == AF_INET6 ? SOL_IPV6 : SOL_IP;
int flag = remote_ctx->src_addr.ss_family == AF_INET6 ? IPV6_TRANSPARENT : IP_TRANSPARENT;
if (setsockopt(src_fd, sol, flag, &opt, sizeof(opt))) {
ERROR("[udp] remote_recv_setsockopt");
close(src_fd);
goto CLEAN_UP;