[Qemu-devel] [PULL 12/17] slirp: Make udp_attach IPv6 compatible

[Jason Wang <jasowang@redhat.com>]

From: Guillaume Subiron <maethor@subiron.org>

A sa_family_t is now passed in argument to udp_attach instead of using a
hardcoded "AF_INET" to call qemu_socket().

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>
---
 slirp/ip_icmp.c | 2 +-
 slirp/udp.c     | 7 ++++---
 slirp/udp.h     | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/slirp/ip_icmp.c b/slirp/ip_icmp.c
index 3a29847..592f33a 100644
--- a/slirp/ip_icmp.c
+++ b/slirp/ip_icmp.c
@@ -162,7 +162,7 @@ icmp_input(struct mbuf *m, int hlen)
       if (icmp_send(so, m, hlen) == 0) {
         return;
       }
-      if(udp_attach(so) == -1) {
+      if (udp_attach(so, AF_INET) == -1) {
 	DEBUG_MISC((dfd,"icmp_input udp_attach errno = %d-%s\n",
 		    errno,strerror(errno)));
 	sofree(so);
diff --git a/slirp/udp.c b/slirp/udp.c
index 63776c0..94e19b7 100644
--- a/slirp/udp.c
+++ b/slirp/udp.c
@@ -169,7 +169,7 @@ udp_input(register struct mbuf *m, int iphlen)
 	  if (!so) {
 	      goto bad;
 	  }
-	  if(udp_attach(so) == -1) {
+	  if (udp_attach(so, AF_INET) == -1) {
 	    DEBUG_MISC((dfd," udp_attach errno = %d-%s\n",
 			errno,strerror(errno)));
 	    sofree(so);
@@ -277,9 +277,10 @@ int udp_output(struct socket *so, struct mbuf *m,
 }
 
 int
-udp_attach(struct socket *so)
+udp_attach(struct socket *so, sa_family_t af)
 {
-  if((so->s = qemu_socket(AF_INET,SOCK_DGRAM,0)) != -1) {
+  so->s = qemu_socket(af, SOCK_DGRAM, 0);
+  if (so->s != -1) {
     so->so_expire = curtime + SO_EXPIRE;
     insque(so, &so->slirp->udb);
   }
diff --git a/slirp/udp.h b/slirp/udp.h
index a04b8ce..15e73c1 100644
--- a/slirp/udp.h
+++ b/slirp/udp.h
@@ -76,7 +76,7 @@ struct mbuf;
 void udp_init(Slirp *);
 void udp_cleanup(Slirp *);
 void udp_input(register struct mbuf *, int);
-int udp_attach(struct socket *);
+int udp_attach(struct socket *, sa_family_t af);
 void udp_detach(struct socket *);
 struct socket * udp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
                            int);
-- 
2.5.0