slirp: Add sockaddr_equal, make solookup family-agnostic

This patch makes solookup() compatible with varying address
families, by using a new sockaddr_equal() function that compares
two sockaddr_storage.

This prepares for IPv6 support.

Signed-off-by: Guillaume Subiron <maethor@subiron.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Guillaume Subiron 2015-12-19 22:25:01 +01:00 committed by Jason Wang
parent a5fd24aa6d
commit 8a87f121ca
4 changed files with 51 additions and 27 deletions

View file

@ -227,6 +227,8 @@ tcp_input(struct mbuf *m, int iphlen, struct socket *inso)
int iss = 0;
u_long tiwin;
int ret;
struct sockaddr_storage lhost, fhost;
struct sockaddr_in *lhost4, *fhost4;
struct ex_list *ex_ptr;
Slirp *slirp;
@ -320,9 +322,16 @@ tcp_input(struct mbuf *m, int iphlen, struct socket *inso)
* Locate pcb for segment.
*/
findso:
so = solookup(&slirp->tcp_last_so, &slirp->tcb,
ti->ti_src, ti->ti_sport,
ti->ti_dst, ti->ti_dport);
lhost.ss_family = AF_INET;
lhost4 = (struct sockaddr_in *) &lhost;
lhost4->sin_addr = ti->ti_src;
lhost4->sin_port = ti->ti_sport;
fhost.ss_family = AF_INET;
fhost4 = (struct sockaddr_in *) &fhost;
fhost4->sin_addr = ti->ti_dst;
fhost4->sin_port = ti->ti_dport;
so = solookup(&slirp->tcp_last_so, &slirp->tcb, &lhost, &fhost);
/*
* If the state is CLOSED (i.e., TCB does not exist) then
@ -367,12 +376,8 @@ findso:
sbreserve(&so->so_snd, TCP_SNDSPACE);
sbreserve(&so->so_rcv, TCP_RCVSPACE);
so->so_lfamily = AF_INET;
so->so_laddr = ti->ti_src;
so->so_lport = ti->ti_sport;
so->so_ffamily = AF_INET;
so->so_faddr = ti->ti_dst;
so->so_fport = ti->ti_dport;
so->lhost.ss = lhost;
so->fhost.ss = fhost;
if ((so->so_iptos = tcp_tos(so)) == 0)
so->so_iptos = ((struct ip *)ti)->ip_tos;