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AF_LINK sockaddr has to be attached to ifp->if_addrlist until the

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end, as many of the code assumes that TAILQ_FIRST(ifp->if_addrlist)
is non-null.

Submitted by:	itojun
This commit is contained in:
Hajimu UMEMOTO 2003-10-16 13:38:29 +00:00
parent 6c021c7220
commit 212bd869db
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=121135
1 changed files with 11 additions and 3 deletions
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14
sys/net/if.c
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@ -454,7 +454,7 @@ void
if_detach(ifp)
struct ifnet *ifp;
{
struct ifaddr *ifa;
struct ifaddr *ifa, *next;
struct radix_node_head *rnh;
int s;
int i;
@ -476,8 +476,11 @@ if_detach(ifp)
while (if_index > 0 && ifaddr_byindex(if_index) == NULL)
if_index--;
for (ifa = TAILQ_FIRST(&ifp->if_addrhead); ifa;
ifa = TAILQ_FIRST(&ifp->if_addrhead)) {
for (ifa = TAILQ_FIRST(&ifp->if_addrhead); ifa; ifa = next) {
next = TAILQ_NEXT(ifa, ifa_link);
if (ifa->ifa_addr->sa_family == AF_LINK)
continue;
#ifdef INET
/* XXX: Ugly!! ad hoc just for INET */
if (ifa->ifa_addr && ifa->ifa_addr->sa_family == AF_INET) {
@ -513,6 +516,11 @@ if_detach(ifp)
in6_ifdetach(ifp);
#endif
/* We can now free link ifaddr. */
ifa = TAILQ_FIRST(&ifp->if_addrhead);
TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link);
IFAFREE(ifa);
/*
* Delete all remaining routes using this interface
* Unfortuneatly the only way to do this is to slog through