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| author | David Ahern <dsa@cumulusnetworks.com> | 2015-12-16 13:20:44 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-12-18 14:43:38 -0500 |
| commit | 6dd9a14e92e54895e143f10fef4d0b9abe109aa9 (patch) | |
| tree | bb02bd14741b26fc9ba0abcaeb9a7f01a8339e68 /net/ipv4/tcp_input.c | |
| parent | 1a8524794fc7c70f44ac28e3a6e8fd637bc41f14 (diff) | |
| download | lwn-6dd9a14e92e54895e143f10fef4d0b9abe109aa9.tar.gz lwn-6dd9a14e92e54895e143f10fef4d0b9abe109aa9.zip | |
net: Allow accepted sockets to be bound to l3mdev domain
Allow accepted sockets to derive their sk_bound_dev_if setting from the
l3mdev domain in which the packets originated. A sysctl setting is added
to control the behavior which is similar to sk_mark and
sysctl_tcp_fwmark_accept.
This effectively allow a process to have a "VRF-global" listen socket,
with child sockets bound to the VRF device in which the packet originated.
A similar behavior can be achieved using sk_mark, but a solution using marks
is incomplete as it does not handle duplicate addresses in different L3
domains/VRFs. Allowing sockets to inherit the sk_bound_dev_if from l3mdev
domain provides a complete solution.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 2d656eef7f8e..7b1fddc47019 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6204,7 +6204,7 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops, tcp_openreq_init(req, &tmp_opt, skb, sk); /* Note: tcp_v6_init_req() might override ir_iif for link locals */ - inet_rsk(req)->ir_iif = sk->sk_bound_dev_if; + inet_rsk(req)->ir_iif = inet_request_bound_dev_if(sk, skb); af_ops->init_req(req, sk, skb); |