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Lock interface address lists in in_pcbladdr() when searching for a

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source address for a connection and there's no route or now interface
for the route.

MFC after:	2 weeks
This commit is contained in:
Robert Watson 2009-04-19 22:25:09 +00:00
parent 8021456a24
commit 9317b04e46
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=191286
1 changed files with 12 additions and 1 deletions
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13
sys/netinet/in_pcb.c
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@ -605,6 +605,7 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
ifp = ia->ia_ifp;
ia = NULL;
IF_ADDR_LOCK(ifp);
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
sa = ifa->ifa_addr;
@ -618,8 +619,10 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
}
if (ia != NULL) {
laddr->s_addr = ia->ia_addr.sin_addr.s_addr;
IF_ADDR_UNLOCK(ifp);
goto done;
}
IF_ADDR_UNLOCK(ifp);
/* 3. As a last resort return the 'default' jail address. */
error = prison_get_ip4(cred, laddr);
@ -636,6 +639,7 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
* 3. as a last resort return the 'default' jail address.
*/
if ((sro.ro_rt->rt_ifp->if_flags & IFF_LOOPBACK) == 0) {
struct ifnet *ifp;
/* If not jailed, use the default returned. */
if (cred == NULL || !jailed(cred)) {
@ -657,7 +661,9 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
* 2. Check if we have any address on the outgoing interface
* belonging to this jail.
*/
TAILQ_FOREACH(ifa, &sro.ro_rt->rt_ifp->if_addrhead, ifa_link) {
ifp = sro.ro_rt->rt_ifp;
IF_ADDR_LOCK(ifp);
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
sa = ifa->ifa_addr;
if (sa->sa_family != AF_INET)
@ -670,8 +676,10 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
}
if (ia != NULL) {
laddr->s_addr = ia->ia_addr.sin_addr.s_addr;
IF_ADDR_UNLOCK(ifp);
goto done;
}
IF_ADDR_UNLOCK(ifp);
/* 3. As a last resort return the 'default' jail address. */
error = prison_get_ip4(cred, laddr);
@ -718,6 +726,7 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
ifp = ia->ia_ifp;
ia = NULL;
IF_ADDR_LOCK(ifp);
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
sa = ifa->ifa_addr;
@ -732,8 +741,10 @@ in_pcbladdr(struct inpcb *inp, struct in_addr *faddr, struct in_addr *laddr,
}
if (ia != NULL) {
laddr->s_addr = ia->ia_addr.sin_addr.s_addr;
IF_ADDR_UNLOCK(ifp);
goto done;
}
IF_ADDR_UNLOCK(ifp);
}
/* 3. As a last resort return the 'default' jail address. */