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authorArnd Bergmann <arnd@arndb.de>2019-04-17 23:51:48 +0300
committerDavid S. Miller <davem@davemloft.net>2019-04-20 00:07:40 +0300
commitc7cbdbf29f488a19982cd9f4a109887f18028bbb (patch)
tree74b39321c14b93411eda0939683dc9b8b713717b /net/ipv6
parent1ab839281cf72476988901a2606378d76530f99c (diff)
downloadlinux-c7cbdbf29f488a19982cd9f4a109887f18028bbb.tar.xz
net: rework SIOCGSTAMP ioctl handling
The SIOCGSTAMP/SIOCGSTAMPNS ioctl commands are implemented by many socket protocol handlers, and all of those end up calling the same sock_get_timestamp()/sock_get_timestampns() helper functions, which results in a lot of duplicate code. With the introduction of 64-bit time_t on 32-bit architectures, this gets worse, as we then need four different ioctl commands in each socket protocol implementation. To simplify that, let's add a new .gettstamp() operation in struct proto_ops, and move ioctl implementation into the common sock_ioctl()/compat_sock_ioctl_trans() functions that these all go through. We can reuse the sock_get_timestamp() implementation, but generalize it so it can deal with both native and compat mode, as well as timeval and timespec structures. Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://lore.kernel.org/lkml/CAK8P3a038aDQQotzua_QtKGhq8O9n+rdiz2=WDCp82ys8eUT+A@mail.gmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/af_inet6.c8
-rw-r--r--net/ipv6/raw.c1
2 files changed, 3 insertions, 6 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 3d1de28aaa9e..c04ae282f4e4 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -547,12 +547,6 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
struct net *net = sock_net(sk);
switch (cmd) {
- case SIOCGSTAMP:
- return sock_get_timestamp(sk, (struct timeval __user *)arg);
-
- case SIOCGSTAMPNS:
- return sock_get_timestampns(sk, (struct timespec __user *)arg);
-
case SIOCADDRT:
case SIOCDELRT:
@@ -585,6 +579,7 @@ const struct proto_ops inet6_stream_ops = {
.getname = inet6_getname,
.poll = tcp_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
+ .gettstamp = sock_gettstamp,
.listen = inet_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */
@@ -618,6 +613,7 @@ const struct proto_ops inet6_dgram_ops = {
.getname = inet6_getname,
.poll = udp_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
+ .gettstamp = sock_gettstamp,
.listen = sock_no_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 5a426226c762..84dbe21b71e5 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1356,6 +1356,7 @@ const struct proto_ops inet6_sockraw_ops = {
.getname = inet6_getname,
.poll = datagram_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
+ .gettstamp = sock_gettstamp,
.listen = sock_no_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */