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authorHangbin Liu <liuhangbin@gmail.com>2018-06-21 14:49:36 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-08-24 14:06:47 +0300
commita29d1c5ce570ba5ebf389d5e6fafa6b85f3e0b74 (patch)
treefaca0768f68680c4942ea930b0519a16ceebc7e4 /net
parentc826a9eaca6caca0399f1dce213bf29653c5f906 (diff)
downloadlinux-a29d1c5ce570ba5ebf389d5e6fafa6b85f3e0b74.tar.xz
ipv6: mcast: fix unsolicited report interval after receiving querys
[ Upstream commit 6c6da92808442908287fae8ebb0ca041a52469f4 ] After recieving MLD querys, we update idev->mc_maxdelay with max_delay from query header. This make the later unsolicited reports have the same interval with mc_maxdelay, which means we may send unsolicited reports with long interval time instead of default configured interval time. Also as we will not call ipv6_mc_reset() after device up. This issue will be there even after leave the group and join other groups. Fixes: fc4eba58b4c14 ("ipv6: make unsolicited report intervals configurable for mld") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/mcast.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 0604a737eecf..a23cfd922509 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -2081,7 +2081,8 @@ void ipv6_mc_dad_complete(struct inet6_dev *idev)
mld_send_initial_cr(idev);
idev->mc_dad_count--;
if (idev->mc_dad_count)
- mld_dad_start_timer(idev, idev->mc_maxdelay);
+ mld_dad_start_timer(idev,
+ unsolicited_report_interval(idev));
}
}
@@ -2093,7 +2094,8 @@ static void mld_dad_timer_expire(struct timer_list *t)
if (idev->mc_dad_count) {
idev->mc_dad_count--;
if (idev->mc_dad_count)
- mld_dad_start_timer(idev, idev->mc_maxdelay);
+ mld_dad_start_timer(idev,
+ unsolicited_report_interval(idev));
}
in6_dev_put(idev);
}
@@ -2451,7 +2453,8 @@ static void mld_ifc_timer_expire(struct timer_list *t)
if (idev->mc_ifc_count) {
idev->mc_ifc_count--;
if (idev->mc_ifc_count)
- mld_ifc_start_timer(idev, idev->mc_maxdelay);
+ mld_ifc_start_timer(idev,
+ unsolicited_report_interval(idev));
}
in6_dev_put(idev);
}