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zebra: Fix zebra to exit on recvmsg buffer overrun

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When zebra receives a recvmsg buffer from the kernel
silently exit so that watchquagga will notice and then
restart zebra.

Ticket: CM-11130
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-05-23 17:22:24 -04:00
parent 116bd4e9ff
commit 99d8325e9a
1 changed files with 6 additions and 0 deletions
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6
zebra/rt_netlink.c
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@ -327,6 +327,12 @@ netlink_parse_info (int (*filter) (struct sockaddr_nl *, struct nlmsghdr *,
break; break;
zlog (NULL, LOG_ERR, "%s recvmsg overrun: %s", zlog (NULL, LOG_ERR, "%s recvmsg overrun: %s",
nl->name, safe_strerror(errno)); nl->name, safe_strerror(errno));
/*
* In this case we are screwed.
* There is no good way to
* recover zebra at this point.
*/
exit (-1);
continue; continue;
} }