diff options
| author | Ursula Braun <ubraun@linux.vnet.ibm.com> | 2017-01-09 18:55:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-10 00:07:37 +0300 |
| commit | 4b9d07a44015a0e940448fa3885b894349e8b162 (patch) | |
| tree | c812e6e8a8415b77dbd190e4609d40a1b307e243 | |
| parent | c8584b3fdf7429ed2a830dd1f7435bbf45122afa (diff) | |
| download | linux-4b9d07a44015a0e940448fa3885b894349e8b162.tar.xz | |
net: introduce keepalive function in struct proto
Direct call of tcp_set_keepalive() function from protocol-agnostic
sock_setsockopt() function in net/core/sock.c violates network
layering. And newly introduced protocol (SMC-R) will need its own
keepalive function. Therefore, add "keepalive" function pointer
to "struct proto", and call it from sock_setsockopt() via this pointer.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/sock.h | 1 | ||||
| -rw-r--r-- | net/core/sock.c | 7 | ||||
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 1 | ||||
| -rw-r--r-- | net/ipv4/tcp_timer.c | 1 | ||||
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 1 |
5 files changed, 6 insertions, 5 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index f0e867f58722..99deda67eba0 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1024,6 +1024,7 @@ struct proto { int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *option); + void (*keepalive)(struct sock *sk, int valbool); #ifdef CONFIG_COMPAT int (*compat_setsockopt)(struct sock *sk, int level, diff --git a/net/core/sock.c b/net/core/sock.c index f560e0826009..5018703ee2c2 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -762,11 +762,8 @@ set_rcvbuf: goto set_rcvbuf; case SO_KEEPALIVE: -#ifdef CONFIG_INET - if (sk->sk_protocol == IPPROTO_TCP && - sk->sk_type == SOCK_STREAM) - tcp_set_keepalive(sk, valbool); -#endif + if (sk->sk_prot->keepalive) + sk->sk_prot->keepalive(sk, valbool); sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool); break; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 7e4be4f361f3..56d756ecfb59 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2376,6 +2376,7 @@ struct proto tcp_prot = { .shutdown = tcp_shutdown, .setsockopt = tcp_setsockopt, .getsockopt = tcp_getsockopt, + .keepalive = tcp_set_keepalive, .recvmsg = tcp_recvmsg, .sendmsg = tcp_sendmsg, .sendpage = tcp_sendpage, diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 3705075f42c3..29a9bd5f1225 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -617,6 +617,7 @@ void tcp_set_keepalive(struct sock *sk, int val) else if (!val) inet_csk_delete_keepalive_timer(sk); } +EXPORT_SYMBOL_GPL(tcp_set_keepalive); static void tcp_keepalive_timer (unsigned long data) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index a4cdf6a34c30..228965dca3c5 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1889,6 +1889,7 @@ struct proto tcpv6_prot = { .shutdown = tcp_shutdown, .setsockopt = tcp_setsockopt, .getsockopt = tcp_getsockopt, + .keepalive = tcp_set_keepalive, .recvmsg = tcp_recvmsg, .sendmsg = tcp_sendmsg, .sendpage = tcp_sendpage, |