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slirp: Bind support for host forwarding rules

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Extend the hostfwd rule format so that the user can specify on which
host interface qemu should listen for incoming connections. If omitted,
binding will takes place against all interfaces.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-06-24 14:42:28 +02:00 • committed by Anthony Liguori
parent f3546deb07
commit 3c6a05803c
11 changed files with 73 additions and 47 deletions
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11
slirp/slirp.c
View file

@ -757,7 +757,7 @@ void if_encap(const uint8_t *ip_data, int ip_data_len)
/* Unlistens a redirection
*
* Return value: number of redirs removed */
int slirp_remove_hostfwd(int is_udp, int host_port)
int slirp_remove_hostfwd(int is_udp, struct in_addr host_addr, int host_port)
{
struct socket *so;
struct socket *head = (is_udp ? &udb : &tcb);
@ -770,6 +770,7 @@ int slirp_remove_hostfwd(int is_udp, int host_port)
for (so = head->so_next; so != head; so = so->so_next) {
addr_len = sizeof(addr);
if (getsockname(so->s, (struct sockaddr *)&addr, &addr_len) == 0 &&
addr.sin_addr.s_addr == host_addr.s_addr &&
addr.sin_port == port) {
close(so->s);
sofree(so);
@ -781,19 +782,19 @@ int slirp_remove_hostfwd(int is_udp, int host_port)
return n;
}
int slirp_add_hostfwd(int is_udp, int host_port,
int slirp_add_hostfwd(int is_udp, struct in_addr host_addr, int host_port,
struct in_addr guest_addr, int guest_port)
{
if (!guest_addr.s_addr) {
guest_addr = vdhcp_startaddr;
}
if (is_udp) {
if (!udp_listen(htons(host_port), guest_addr.s_addr,
if (!udp_listen(host_addr.s_addr, htons(host_port), guest_addr.s_addr,
htons(guest_port), 0))
return -1;
} else {
if (!solisten(htons(host_port), guest_addr.s_addr,
htons(guest_port), 0))
if (!tcp_listen(host_addr.s_addr, htons(host_port), guest_addr.s_addr,
htons(guest_port), 0))
return -1;
}
return 0;