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authorNikolay Borisov <nborisov@suse.com>2017-08-09 14:38:04 +0300
committerDavid S. Miller <davem@davemloft.net>2017-08-09 22:46:44 -0700
commit1714020e42b17135032c8606f7185b3fb2ba5d78 (patch)
treefec93f563b4df008fcfcd198b78f001a24c9db3d /net/ipv4/igmp.c
parentgeneve: maximum value of VNI cannot be used (diff)
downloadlinux-dev-1714020e42b17135032c8606f7185b3fb2ba5d78.tar.xz
linux-dev-1714020e42b17135032c8606f7185b3fb2ba5d78.zip
igmp: Fix regression caused by igmp sysctl namespace code.
Commit dcd87999d415 ("igmp: net: Move igmp namespace init to correct file") moved the igmp sysctls initialization from tcp_sk_init to igmp_net_init. This function is only called as part of per-namespace initialization, only if CONFIG_IP_MULTICAST is defined, otherwise igmp_mc_init() call in ip_init is compiled out, casuing the igmp pernet ops to not be registerd and those sysctl being left initialized with 0. However, there are certain functions, such as ip_mc_join_group which are always compiled and make use of some of those sysctls. Let's do a partial revert of the aforementioned commit and move the sysctl initialization into inet_init_net, that way they will always have sane values. Fixes: dcd87999d415 ("igmp: net: Move igmp namespace init to correct file") Link: https://bugzilla.kernel.org/show_bug.cgi?id=196595 Reported-by: Gerardo Exequiel Pozzi <vmlinuz386@gmail.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/igmp.c')
-rw-r--r--net/ipv4/igmp.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 28f14afd0dd3..498706b072fb 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2974,12 +2974,6 @@ static int __net_init igmp_net_init(struct net *net)
goto out_sock;
}
- /* Sysctl initialization */
- net->ipv4.sysctl_igmp_max_memberships = 20;
- net->ipv4.sysctl_igmp_max_msf = 10;
- /* IGMP reports for link-local multicast groups are enabled by default */
- net->ipv4.sysctl_igmp_llm_reports = 1;
- net->ipv4.sysctl_igmp_qrv = 2;
return 0;
out_sock: