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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=a0ee3541483767e82bf26b8269693eec25c01cba&showmsg=1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?id=a0ee3541483767e82bf26b8269693eec25c01cba&showmsg=1'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4?id=a0ee3541483767e82bf26b8269693eec25c01cba&showmsg=1'>ipv4</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4/ip_output.c?id=a0ee3541483767e82bf26b8269693eec25c01cba&showmsg=1'>ip_output.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4/ip_output.c?id=a0ee3541483767e82bf26b8269693eec25c01cba'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2017-02-07 13:07:47 -0500'>2017-02-07</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/ip_output.c?id=0dec879f636f11b0ffda1cb5fd96a1754c59ead3'>net: use dst_confirm_neigh for UDP, RAW, ICMP, L2TP</a></td><td>Julian Anastasov</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+6</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
When same struct dst_entry can be used for many different
neighbours we can not use it for pending confirmations.
The datagram protocols can use MSG_CONFIRM to confirm the
neighbour. When used with MSG_PROBE we do not reach the
code where neighbour is confirmed, so we have to do the
same slow lookup by using the dst_confirm_neigh() helper.
When MSG_PROBE is not used, ip_append_data/ip6_append_data
will set the skb flag dst_pending_confirm.
Reported-by: YueHaibing <yuehaibing@huawei.com>
Fixes: 5110effee8fd ("net: Do delayed neigh confirmation.")
Fixes: f2bb4bedf35d ("ipv4: Cache output routes in fib_info nexthops.")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
</td></tr>
<tr class='logheader'><td><span title='2017-02-07 13:07:46 -0500'>2017-02-07</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/ip_output.c?id=4ff0620354f2b39b9fe2a91c22c4de9d1fba0c8e'>net: add dst_pending_confirm flag to skbuff</a></td><td>Julian Anastasov</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+4</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Add new skbuff flag to allow protocols to confirm neighbour.
When same struct dst_entry can be used for many different
neighbours we can not use it for pending confirmations.
Add sock_confirm_neigh() helper to confirm the neighbour and
use it for IPv4, IPv6 and VRF before dst_neigh_output.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
</td></tr>