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tcp, udp: Map source address to gateway for any traffic from 127.0.0.0/8
...instead of just 127.0.0.1. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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parent
9663378d6d
commit
8af961b85b
6
tcp.c
6
tcp.c
@ -2291,13 +2291,13 @@ static void tcp_conn_from_sock(struct ctx *c, union epoll_ref ref,
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tcp_hash_insert(c, conn, AF_INET6, &sa6->sin6_addr);
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tcp_hash_insert(c, conn, AF_INET6, &sa6->sin6_addr);
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} else {
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} else {
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struct sockaddr_in *sa4 = (struct sockaddr_in *)&sa;
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struct sockaddr_in *sa4 = (struct sockaddr_in *)&sa;
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in_addr_t s_addr = ntohl(sa4->sin_addr.s_addr);
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memset(&conn->a.a4.zero, 0, sizeof(conn->a.a4.zero));
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memset(&conn->a.a4.zero, 0, sizeof(conn->a.a4.zero));
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memset(&conn->a.a4.one, 0xff, sizeof(conn->a.a4.one));
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memset(&conn->a.a4.one, 0xff, sizeof(conn->a.a4.one));
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if (ntohl(sa4->sin_addr.s_addr) == INADDR_LOOPBACK ||
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if (s_addr >> IN_CLASSA_NSHIFT == IN_LOOPBACKNET ||
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ntohl(sa4->sin_addr.s_addr) == INADDR_ANY ||
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s_addr == INADDR_ANY || s_addr == c->addr4_seen)
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sa4->sin_addr.s_addr == c->addr4_seen)
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sa4->sin_addr.s_addr = c->gw4;
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sa4->sin_addr.s_addr = c->gw4;
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memcpy(&conn->a.a4.a, &sa4->sin_addr, sizeof(conn->a.a4.a));
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memcpy(&conn->a.a4.a, &sa4->sin_addr, sizeof(conn->a.a4.a));
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7
udp.c
7
udp.c
@ -728,15 +728,16 @@ void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
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for (i = 0; i < n; i++) {
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for (i = 0; i < n; i++) {
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struct udp4_l2_buf_t *b = &udp4_l2_buf[i];
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struct udp4_l2_buf_t *b = &udp4_l2_buf[i];
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size_t ip_len, iov_len;
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size_t ip_len, iov_len;
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in_addr_t s_addr;
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ip_len = udp4_l2_mh_sock[i].msg_len +
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ip_len = udp4_l2_mh_sock[i].msg_len +
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sizeof(b->iph) + sizeof(b->uh);
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sizeof(b->iph) + sizeof(b->uh);
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b->iph.tot_len = htons(ip_len);
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b->iph.tot_len = htons(ip_len);
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if (ntohl(b->s_in.sin_addr.s_addr) == INADDR_LOOPBACK ||
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s_addr = ntohl(b->s_in.sin_addr.s_addr);
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ntohl(b->s_in.sin_addr.s_addr) == INADDR_ANY ||
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if (s_addr >> IN_CLASSA_NSHIFT == IN_LOOPBACKNET ||
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b->s_in.sin_addr.s_addr == c->addr4_seen) {
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s_addr == INADDR_ANY || s_addr == c->addr4_seen) {
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in_port_t src = htons(b->s_in.sin_port);
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in_port_t src = htons(b->s_in.sin_port);
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b->iph.saddr = c->gw4;
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b->iph.saddr = c->gw4;
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