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Fixes longstanding issue with interfaces staying in IF_TMP_DOWN.

Browse source 
Thanks to Pierluigi Rolando and others for the bugreport.
This commit is contained in:
Ondrej Zajicek 2014-02-26 12:52:00 +01:00
parent d776540811
commit 3216eb03dd
2 changed files with 23 additions and 9 deletions
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16
sysdep/bsd/krt-sock.c
View file

@ -535,7 +535,7 @@ krt_read_ifannounce(struct ks_msg *msg)
}
static void
krt_read_ifinfo(struct ks_msg *msg)
krt_read_ifinfo(struct ks_msg *msg, int scan)
{
struct if_msghdr *ifm = (struct if_msghdr *)&msg->rtm;
void *body = (void *)(ifm + 1);
@ -608,11 +608,14 @@ krt_read_ifinfo(struct ks_msg *msg)
else
f.flags |= IF_MULTIACCESS; /* NBMA */
if_update(&f);
iface = if_update(&f);
if (!scan)
if_end_partial_update(iface);
}
static void
krt_read_addr(struct ks_msg *msg)
krt_read_addr(struct ks_msg *msg, int scan)
{
struct ifa_msghdr *ifam = (struct ifa_msghdr *)&msg->rtm;
void *body = (void *)(ifam + 1);
@ -715,6 +718,9 @@ krt_read_addr(struct ks_msg *msg)
ifa_update(&ifa);
else
ifa_delete(&ifa);
if (!scan)
if_end_partial_update(iface);
}
static void
@ -734,11 +740,11 @@ krt_read_msg(struct proto *p, struct ks_msg *msg, int scan)
krt_read_ifannounce(msg);
break;
case RTM_IFINFO:
krt_read_ifinfo(msg);
krt_read_ifinfo(msg, scan);
break;
case RTM_NEWADDR:
case RTM_DELADDR:
krt_read_addr(msg);
krt_read_addr(msg, scan);
break;
default:
break;

16
sysdep/linux/netlink.c
View file

@ -437,12 +437,16 @@ nl_parse_link(struct nlmsghdr *h, int scan)
f.flags |= IF_MULTIACCESS | IF_BROADCAST | IF_MULTICAST;
else
f.flags |= IF_MULTIACCESS; /* NBMA */
if_update(&f);
ifi = if_update(&f);
if (!scan)
if_end_partial_update(ifi);
}
}
static void
nl_parse_addr(struct nlmsghdr *h)
nl_parse_addr(struct nlmsghdr *h, int scan)
{
struct ifaddrmsg *i;
struct rtattr *a[IFA_ANYCAST+1];
@ -542,10 +546,14 @@ nl_parse_addr(struct nlmsghdr *h)
ifi->index, ifi->name,
new ? "added" : "removed",
ifa.ip, ifa.flags, ifa.prefix, ifa.pxlen, ifa.brd, ifa.opposite);
if (new)
ifa_update(&ifa);
else
ifa_delete(&ifa);
if (!scan)
if_end_partial_update(ifi);
}
void
@ -565,7 +573,7 @@ kif_do_scan(struct kif_proto *p UNUSED)
nl_request_dump(RTM_GETADDR);
while (h = nl_get_scan())
if (h->nlmsg_type == RTM_NEWADDR || h->nlmsg_type == RTM_DELADDR)
nl_parse_addr(h);
nl_parse_addr(h, 1);
else
log(L_DEBUG "nl_scan_ifaces: Unknown packet received (type=%d)", h->nlmsg_type);
@ -967,7 +975,7 @@ nl_async_msg(struct nlmsghdr *h)
case RTM_NEWADDR:
case RTM_DELADDR:
DBG("KRT: Received async address notification (%d)\n", h->nlmsg_type);
nl_parse_addr(h);
nl_parse_addr(h, 0);
break;
default:
DBG("KRT: Received unknown async notification (%d)\n", h->nlmsg_type);