diff options
| author | jianghaoran <jianghaoran@kylinos.cn> | 2022-04-29 08:38:02 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-03 00:50:43 +0300 |
| commit | b52e1cce31ca721e937d517411179f9196ee6135 (patch) | |
| tree | ab11fff6918e573d25c686a5fd8e7146cfa480a3 /net/ipv6/addrconf.c | |
| parent | 829b7bdd70449c211eb6b2673fcbc597ce120939 (diff) | |
| download | linux-b52e1cce31ca721e937d517411179f9196ee6135.tar.xz | |
ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL
ARPHRD_TUNNEL interface can't process rs packets
and will generate TX errors
ex:
ip tunnel add ethn mode ipip local 192.168.1.1 remote 192.168.1.2
ifconfig ethn x.x.x.x
ethn: flags=209<UP,POINTOPOINT,RUNNING,NOARP> mtu 1480
inet x.x.x.x netmask 255.255.255.255 destination x.x.x.x
inet6 fe80::5efe:ac1e:3cdb prefixlen 64 scopeid 0x20<link>
tunnel txqueuelen 1000 (IPIP Tunnel)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 3 dropped 0 overruns 0 carrier 0 collisions 0
Signed-off-by: jianghaoran <jianghaoran@kylinos.cn>
Link: https://lore.kernel.org/r/20220429053802.246681-1-jianghaoran@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index f01b8a3e1952..7dee662d7019 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4219,7 +4219,8 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp, bool bump_id, send_rs = send_mld && ipv6_accept_ra(ifp->idev) && ifp->idev->cnf.rtr_solicits != 0 && - (dev->flags&IFF_LOOPBACK) == 0; + (dev->flags & IFF_LOOPBACK) == 0 && + (dev->type != ARPHRD_TUNNEL); read_unlock_bh(&ifp->idev->lock); /* While dad is in progress mld report's source address is in6_addrany. |