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route: filter routes by family if it's specified 

Currently when we specify AF_INET6 when it is disabled, we will get
all routes.

For example, we can boot kernel with ipv6.disable=1 and try to get ipv6
routes:
$ ip -6 route show
default via 192.168.122.1 dev eth0  proto static  metric 100
192.168.122.0/24 dev eth0  proto kernel  scope link  src 192.168.122.141  metric 100

Here are ipv4 routes and this is unexpected behaviour.

Signed-off-by: Andrew Vagin <avagin@openvz.org>
This commit is contained in:
Andrew Vagin 2015-09-23 14:43:46 +03:00 committed by Stephen Hemminger
parent 6c19ff10b5
commit 5b9ac19029
1 changed files with 3 additions and 0 deletions
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3
ip/iproute.c
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@ -145,6 +145,9 @@ static int filter_nlmsg(struct nlmsghdr *n, struct rtattr **tb, int host_len)
table = rtm_get_table(r, tb);
if (preferred_family != AF_UNSPEC && r->rtm_family != preferred_family)
return 0;
if (r->rtm_family == AF_INET6 && table != RT_TABLE_MAIN)
ip6_multiple_tables = 1;