diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-04-17 22:51:48 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-19 14:07:40 -0700 |
| commit | c7cbdbf29f488a19982cd9f4a109887f18028bbb (patch) | |
| tree | 74b39321c14b93411eda0939683dc9b8b713717b /net/ipv6 | |
| parent | 1ab839281cf72476988901a2606378d76530f99c (diff) | |
| download | linux-c7cbdbf29f488a19982cd9f4a109887f18028bbb.tar.bz2 | |
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.c | 8 | ||||
| -rw-r--r-- | net/ipv6/raw.c | 1 |
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 */ |