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[209.132.180.67]) by mx.google.com with ESMTP id 59-v6si3707451plp.87.2018.08.29.06.03.29; Wed, 29 Aug 2018 06:03:29 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of netdev-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of netdev-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728678AbeH2RAN (ORCPT + 10 others); Wed, 29 Aug 2018 13:00:13 -0400 Received: from mout.kundenserver.de ([212.227.17.10]:33593 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726848AbeH2RAN (ORCPT ); Wed, 29 Aug 2018 13:00:13 -0400 Received: from wuerfel.lan ([109.193.40.16]) by mrelayeu.kundenserver.de (mreue103 [212.227.15.145]) with ESMTPA (Nemesis) id 0Lb8B7-1fWxr62uSH-00kjAD; Wed, 29 Aug 2018 15:03:13 +0200 From: Arnd Bergmann To: netdev@vger.kernel.org, "David S . Miller" Cc: linux-arch@vger.kernel.org, y2038@lists.linaro.org, Arnd Bergmann , Eric Dumazet , Willem de Bruijn , linux-kernel@vger.kernel.org, linux-hams@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-can@vger.kernel.org, dccp@vger.kernel.org, linux-wpan@vger.kernel.org, linux-sctp@vger.kernel.org, linux-x25@vger.kernel.org Subject: [PATCH net-next 1/3] net: rework SIOCGSTAMP ioctl handling Date: Wed, 29 Aug 2018 14:59:10 +0200 Message-Id: <20180829130308.3504560-1-arnd@arndb.de> X-Mailer: git-send-email 2.18.0 X-Provags-ID: V03:K1:XPIQmOWbVM6/UTQuQI/4Pe+uIf1gWElm7JoDvrbY5kZp2+yHxOp V7ipyV7TqjCO2/SAuHbaG/EccfsJjgbAzikkm2dlrpkcVvzyb7BthsVi+mQGK3i/DkXg3mR h5RtxIbnWqQH2EMuG0ty2rzd3c+SbM3SmP2SuEknxhFJxfxZ+Np3XKnEz5rM0WzaWuhOrLR 6glJzQUOGcCAv54WutQ1g== X-UI-Out-Filterresults: notjunk:1; V01:K0:Eem8ZPIwqPQ=:4cKuQI/oIOZQs82MsUNPsr hxCEM2MPMhWYe+4Qx39/Xc+VR0XKv6quBARYVf1adH7RjcvNgBVNrz2R2fJA3qgGMp6FJ88nY m//zXQ6ArBXeoDkdb+4WWIbH+cbzIJL8NFKuSqDAnm0MkxujvadpopLAQmUM9VWaHJCl2w4E1 qpQHH0z6Dc8k5LqyF8yxUKpa8XBnfymPfJfUyreUvz+CO8kSYRqtKAVf+w4iD2EQiwovs4w/c WyILNHKh3/vftLLVgx/TVX9YVDx70noq35IJH1G4YNeohg8+/zF5IbFmUyqmF/iUH7TSNmk88 jxm+OzcVF6eM3kNNDR6c5CiTkPzArnKxb3zbNHKgRzMm62ZjKbEMjQ8Ar3RYNlJWJrIE5snU9 GBJGpg3Lky5SZVUZrQ9Uk22IuzWn+xLJOBoatrtkSh0OfpazO9vOE/GH6WgFXN9jiNSY8AQeL sKkte8QU7X7egQc1mNcHQM280HrgVuNhg+G+hKI9izessjaLiEX8AUDu/dKDYS28+Xyr7956M mJO0BtU47R2M1Fz2wHz++F5TD1T+MH+ZkwoWFJ1RLUMu2w/IKCiqfjVQUR+eTZB/g/rhVg23S wdPJ8VBcLE7hDPNJT6q3ihROKfDQ/KfhphvX2aQPwdUr3zBMnQsLdd63Kbn4qLuMf4Dminn/Y UlumtiZEXZHpTRPGz3E69j2J0u6/ceT6uAZRGpumg0DJfqe+zucF9xfulq7rn5esGLV0= Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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. Signed-off-by: Arnd Bergmann --- include/linux/net.h | 2 ++ include/net/compat.h | 3 -- include/net/sock.h | 4 +-- net/appletalk/ddp.c | 7 +---- net/atm/ioctl.c | 16 ----------- net/atm/pvc.c | 1 + net/atm/svc.c | 1 + net/ax25/af_ax25.c | 9 +----- net/bluetooth/af_bluetooth.c | 8 ------ net/bluetooth/l2cap_sock.c | 1 + net/bluetooth/rfcomm/sock.c | 1 + net/bluetooth/sco.c | 1 + net/can/af_can.c | 6 ---- net/can/bcm.c | 1 + net/can/raw.c | 1 + net/compat.c | 54 ------------------------------------ net/core/sock.c | 38 +++++++++++-------------- net/dccp/ipv4.c | 1 + net/dccp/ipv6.c | 1 + net/ieee802154/socket.c | 6 ++-- net/ipv4/af_inet.c | 9 ++---- net/ipv6/af_inet6.c | 8 ++---- net/ipv6/raw.c | 1 + net/l2tp/l2tp_ip.c | 1 + net/l2tp/l2tp_ip6.c | 1 + net/netrom/af_netrom.c | 14 +--------- net/packet/af_packet.c | 7 ++--- net/qrtr/qrtr.c | 4 +-- net/rose/af_rose.c | 7 +---- net/sctp/ipv6.c | 1 + net/sctp/protocol.c | 1 + net/socket.c | 48 ++++++++++---------------------- net/x25/af_x25.c | 27 +----------------- 33 files changed, 63 insertions(+), 228 deletions(-) -- 2.18.0 Acked-by: Stefan Schmidt diff --git a/include/linux/net.h b/include/linux/net.h index e0930678c8bf..2be3e9c772fe 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -155,6 +155,8 @@ struct proto_ops { int (*compat_ioctl) (struct socket *sock, unsigned int cmd, unsigned long arg); #endif + int (*gettstamp) (struct socket *sock, void __user *userstamp, + bool timeval, bool time32); int (*listen) (struct socket *sock, int len); int (*shutdown) (struct socket *sock, int flags); int (*setsockopt)(struct socket *sock, int level, diff --git a/include/net/compat.h b/include/net/compat.h index 4c6d75612b6c..f277653c7e17 100644 --- a/include/net/compat.h +++ b/include/net/compat.h @@ -30,9 +30,6 @@ struct compat_cmsghdr { compat_int_t cmsg_type; }; -int compat_sock_get_timestamp(struct sock *, struct timeval __user *); -int compat_sock_get_timestampns(struct sock *, struct timespec __user *); - #else /* defined(CONFIG_COMPAT) */ /* * To avoid compiler warnings: diff --git a/include/net/sock.h b/include/net/sock.h index 433f45fc2d68..ef6c9409dc75 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1584,6 +1584,8 @@ int sock_setsockopt(struct socket *sock, int level, int op, int sock_getsockopt(struct socket *sock, int level, int op, char __user *optval, int __user *optlen); +int sock_gettstamp(struct socket *sock, void __user *userstamp, + bool timeval, bool time32); struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size, int noblock, int *errcode); struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, @@ -2423,8 +2425,6 @@ static inline bool sk_listener(const struct sock *sk) } void sock_enable_timestamp(struct sock *sk, int flag); -int sock_get_timestamp(struct sock *, struct timeval __user *); -int sock_get_timestampns(struct sock *, struct timespec __user *); int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, int level, int type); diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 9b6bc5abe946..a21a643997aa 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1806,12 +1806,6 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) rc = put_user(amount, (int __user *)argp); break; } - case SIOCGSTAMP: - rc = sock_get_timestamp(sk, argp); - break; - case SIOCGSTAMPNS: - rc = sock_get_timestampns(sk, argp); - break; /* Routing */ case SIOCADDRT: case SIOCDELRT: @@ -1871,6 +1865,7 @@ static const struct proto_ops atalk_dgram_ops = { .getname = atalk_getname, .poll = datagram_poll, .ioctl = atalk_ioctl, + .gettstamp = sock_gettstamp, #ifdef CONFIG_COMPAT .compat_ioctl = atalk_compat_ioctl, #endif diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c index 2ff0e5e470e3..d955b683aa7c 100644 --- a/net/atm/ioctl.c +++ b/net/atm/ioctl.c @@ -81,22 +81,6 @@ static int do_vcc_ioctl(struct socket *sock, unsigned int cmd, (int __user *)argp) ? -EFAULT : 0; goto done; } - case SIOCGSTAMP: /* borrowed from IP */ -#ifdef CONFIG_COMPAT - if (compat) - error = compat_sock_get_timestamp(sk, argp); - else -#endif - error = sock_get_timestamp(sk, argp); - goto done; - case SIOCGSTAMPNS: /* borrowed from IP */ -#ifdef CONFIG_COMPAT - if (compat) - error = compat_sock_get_timestampns(sk, argp); - else -#endif - error = sock_get_timestampns(sk, argp); - goto done; case ATM_SETSC: net_warn_ratelimited("ATM_SETSC is obsolete; used by %s:%d\n", current->comm, task_pid_nr(current)); diff --git a/net/atm/pvc.c b/net/atm/pvc.c index 2cb10af16afc..02bd2a436bdf 100644 --- a/net/atm/pvc.c +++ b/net/atm/pvc.c @@ -118,6 +118,7 @@ static const struct proto_ops pvc_proto_ops = { #ifdef CONFIG_COMPAT .compat_ioctl = vcc_compat_ioctl, #endif + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = pvc_shutdown, .setsockopt = pvc_setsockopt, diff --git a/net/atm/svc.c b/net/atm/svc.c index 2f91b766ac42..908cbb8654f5 100644 --- a/net/atm/svc.c +++ b/net/atm/svc.c @@ -641,6 +641,7 @@ static const struct proto_ops svc_proto_ops = { #ifdef CONFIG_COMPAT .compat_ioctl = svc_compat_ioctl, #endif + .gettstamp = sock_gettstamp, .listen = svc_listen, .shutdown = svc_shutdown, .setsockopt = svc_setsockopt, diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index c603d33d5410..121f7b877df9 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1707,14 +1707,6 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } - case SIOCGSTAMP: - res = sock_get_timestamp(sk, argp); - break; - - case SIOCGSTAMPNS: - res = sock_get_timestampns(sk, argp); - break; - case SIOCAX25ADDUID: /* Add a uid to the uid/call map table */ case SIOCAX25DELUID: /* Delete a uid from the uid/call map table */ case SIOCAX25GETUID: { @@ -1943,6 +1935,7 @@ static const struct proto_ops ax25_proto_ops = { .getname = ax25_getname, .poll = datagram_poll, .ioctl = ax25_ioctl, + .gettstamp = sock_gettstamp, .listen = ax25_listen, .shutdown = ax25_shutdown, .setsockopt = ax25_setsockopt, diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index deacc52d7ff1..34e15ca66779 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -511,14 +511,6 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) err = put_user(amount, (int __user *) arg); break; - case SIOCGSTAMP: - err = sock_get_timestamp(sk, (struct timeval __user *) arg); - break; - - case SIOCGSTAMPNS: - err = sock_get_timestampns(sk, (struct timespec __user *) arg); - break; - default: err = -ENOIOCTLCMD; break; diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 686bdc6b35b0..e8fed07a49d5 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1655,6 +1655,7 @@ static const struct proto_ops l2cap_sock_ops = { .recvmsg = l2cap_sock_recvmsg, .poll = bt_sock_poll, .ioctl = bt_sock_ioctl, + .gettstamp = sock_gettstamp, .mmap = sock_no_mmap, .socketpair = sock_no_socketpair, .shutdown = l2cap_sock_shutdown, diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index d606e9212291..a1dde6fab323 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -1049,6 +1049,7 @@ static const struct proto_ops rfcomm_sock_ops = { .setsockopt = rfcomm_sock_setsockopt, .getsockopt = rfcomm_sock_getsockopt, .ioctl = rfcomm_sock_ioctl, + .gettstamp = sock_gettstamp, .poll = bt_sock_poll, .socketpair = sock_no_socketpair, .mmap = sock_no_mmap diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 8f0f9279eac9..e7e5b3ed0394 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -1200,6 +1200,7 @@ static const struct proto_ops sco_sock_ops = { .recvmsg = sco_sock_recvmsg, .poll = bt_sock_poll, .ioctl = bt_sock_ioctl, + .gettstamp = sock_gettstamp, .mmap = sock_no_mmap, .socketpair = sock_no_socketpair, .shutdown = sco_sock_shutdown, diff --git a/net/can/af_can.c b/net/can/af_can.c index 1684ba5b51eb..e8fd5dc1780a 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -89,13 +89,7 @@ static atomic_t skbcounter = ATOMIC_INIT(0); int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { - struct sock *sk = sock->sk; - switch (cmd) { - - case SIOCGSTAMP: - return sock_get_timestamp(sk, (struct timeval __user *)arg); - default: return -ENOIOCTLCMD; } diff --git a/net/can/bcm.c b/net/can/bcm.c index 0af8f0db892a..db3e521b9f47 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1662,6 +1662,7 @@ static const struct proto_ops bcm_ops = { .getname = sock_no_getname, .poll = datagram_poll, .ioctl = can_ioctl, /* use can_ioctl() from af_can.c */ + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, diff --git a/net/can/raw.c b/net/can/raw.c index 1051eee82581..968f6f8082a1 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -845,6 +845,7 @@ static const struct proto_ops raw_ops = { .getname = raw_getname, .poll = datagram_poll, .ioctl = can_ioctl, /* use can_ioctl() from af_can.c */ + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = raw_setsockopt, diff --git a/net/compat.c b/net/compat.c index 47a614b370cd..e5456dd4c7a5 100644 --- a/net/compat.c +++ b/net/compat.c @@ -455,60 +455,6 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname, return sock_getsockopt(sock, level, optname, optval, optlen); } -int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) -{ - struct compat_timeval __user *ctv; - int err; - struct timeval tv; - - if (COMPAT_USE_64BIT_TIME) - return sock_get_timestamp(sk, userstamp); - - ctv = (struct compat_timeval __user *) userstamp; - err = -ENOENT; - sock_enable_timestamp(sk, SOCK_TIMESTAMP); - tv = ktime_to_timeval(sk->sk_stamp); - if (tv.tv_sec == -1) - return err; - if (tv.tv_sec == 0) { - sk->sk_stamp = ktime_get_real(); - tv = ktime_to_timeval(sk->sk_stamp); - } - err = 0; - if (put_user(tv.tv_sec, &ctv->tv_sec) || - put_user(tv.tv_usec, &ctv->tv_usec)) - err = -EFAULT; - return err; -} -EXPORT_SYMBOL(compat_sock_get_timestamp); - -int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) -{ - struct compat_timespec __user *ctv; - int err; - struct timespec ts; - - if (COMPAT_USE_64BIT_TIME) - return sock_get_timestampns (sk, userstamp); - - ctv = (struct compat_timespec __user *) userstamp; - err = -ENOENT; - sock_enable_timestamp(sk, SOCK_TIMESTAMP); - ts = ktime_to_timespec(sk->sk_stamp); - if (ts.tv_sec == -1) - return err; - if (ts.tv_sec == 0) { - sk->sk_stamp = ktime_get_real(); - ts = ktime_to_timespec(sk->sk_stamp); - } - err = 0; - if (put_user(ts.tv_sec, &ctv->tv_sec) || - put_user(ts.tv_nsec, &ctv->tv_nsec)) - err = -EFAULT; - return err; -} -EXPORT_SYMBOL(compat_sock_get_timestampns); - static int __compat_sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen) diff --git a/net/core/sock.c b/net/core/sock.c index 3730eb855095..df17bbfaca27 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2897,37 +2897,31 @@ bool lock_sock_fast(struct sock *sk) } EXPORT_SYMBOL(lock_sock_fast); -int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) +int sock_gettstamp(struct socket *sock, void __user *userstamp, + bool timeval, bool time32) { - struct timeval tv; - - sock_enable_timestamp(sk, SOCK_TIMESTAMP); - tv = ktime_to_timeval(sk->sk_stamp); - if (tv.tv_sec == -1) - return -ENOENT; - if (tv.tv_sec == 0) { - sk->sk_stamp = ktime_get_real(); - tv = ktime_to_timeval(sk->sk_stamp); - } - return copy_to_user(userstamp, &tv, sizeof(tv)) ? -EFAULT : 0; -} -EXPORT_SYMBOL(sock_get_timestamp); - -int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) -{ - struct timespec ts; + struct sock *sk = sock->sk; + struct timespec64 ts; sock_enable_timestamp(sk, SOCK_TIMESTAMP); - ts = ktime_to_timespec(sk->sk_stamp); + ts = ktime_to_timespec64(sk->sk_stamp); if (ts.tv_sec == -1) return -ENOENT; if (ts.tv_sec == 0) { sk->sk_stamp = ktime_get_real(); - ts = ktime_to_timespec(sk->sk_stamp); + ts = ktime_to_timespec64(sk->sk_stamp); } - return copy_to_user(userstamp, &ts, sizeof(ts)) ? -EFAULT : 0; + + if (timeval) + ts.tv_nsec /= 1000; +#ifdef CONFIG_COMPAT_32BIT_TIME + if (time32) + return put_old_timespec32(&ts, userstamp); +#endif + + return put_timespec64(&ts, userstamp); } -EXPORT_SYMBOL(sock_get_timestampns); +EXPORT_SYMBOL(sock_gettstamp); void sock_enable_timestamp(struct sock *sk, int flag) { diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index b08feb219b44..8103f3525773 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -986,6 +986,7 @@ static const struct proto_ops inet_dccp_ops = { /* FIXME: work on tcp_poll to rename it to inet_csk_poll */ .poll = dccp_poll, .ioctl = inet_ioctl, + .gettstamp = sock_gettstamp, /* FIXME: work on inet_listen to rename it to sock_common_listen */ .listen = inet_dccp_listen, .shutdown = inet_shutdown, diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 6344f1b18a6a..dacdb5b2638d 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1072,6 +1072,7 @@ static const struct proto_ops inet6_dccp_ops = { .getname = inet6_getname, .poll = dccp_poll, .ioctl = inet6_ioctl, + .gettstamp = sock_gettstamp, .listen = inet_dccp_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index bc6b912603f1..ce2dfb997537 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -164,10 +164,6 @@ static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd, struct sock *sk = sock->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 SIOCGIFADDR: case SIOCSIFADDR: return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg, @@ -426,6 +422,7 @@ static const struct proto_ops ieee802154_raw_ops = { .getname = sock_no_getname, .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, @@ -988,6 +985,7 @@ static const struct proto_ops ieee802154_dgram_ops = { .getname = sock_no_getname, .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 20fda8fb8ffd..3490275bab50 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -911,12 +911,6 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) struct rtentry rt; switch (cmd) { - case SIOCGSTAMP: - err = sock_get_timestamp(sk, (struct timeval __user *)arg); - break; - case SIOCGSTAMPNS: - err = sock_get_timestampns(sk, (struct timespec __user *)arg); - break; case SIOCADDRT: case SIOCDELRT: if (copy_from_user(&rt, p, sizeof(struct rtentry))) @@ -988,6 +982,7 @@ const struct proto_ops inet_stream_ops = { .getname = inet_getname, .poll = tcp_poll, .ioctl = inet_ioctl, + .gettstamp = sock_gettstamp, .listen = inet_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, @@ -1023,6 +1018,7 @@ const struct proto_ops inet_dgram_ops = { .getname = inet_getname, .poll = udp_poll, .ioctl = inet_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, @@ -1055,6 +1051,7 @@ static const struct proto_ops inet_sockraw_ops = { .getname = inet_getname, .poll = datagram_poll, .ioctl = inet_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 673bba31eb18..77f9716958a7 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -532,12 +532,6 @@ 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: @@ -570,6 +564,7 @@ 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 */ @@ -603,6 +598,7 @@ 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 413d98bf24f4..a913ccfff021 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1344,6 +1344,7 @@ 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 */ diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 35f6f86d4dcc..b7b844d9edec 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -615,6 +615,7 @@ static const struct proto_ops l2tp_ip_ops = { .getname = l2tp_ip_getname, .poll = datagram_poll, .ioctl = inet_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 237f1a4a0b0c..c379ebfa4cb7 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -751,6 +751,7 @@ static const struct proto_ops l2tp_ip6_ops = { .getname = l2tp_ip6_getname, .poll = datagram_poll, .ioctl = inet6_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 03f37c4e64fe..687103e0a3c8 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1194,7 +1194,6 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { struct sock *sk = sock->sk; void __user *argp = (void __user *)arg; - int ret; switch (cmd) { case TIOCOUTQ: { @@ -1220,18 +1219,6 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return put_user(amount, (int __user *)argp); } - case SIOCGSTAMP: - lock_sock(sk); - ret = sock_get_timestamp(sk, argp); - release_sock(sk); - return ret; - - case SIOCGSTAMPNS: - lock_sock(sk); - ret = sock_get_timestampns(sk, argp); - release_sock(sk); - return ret; - case SIOCGIFADDR: case SIOCSIFADDR: case SIOCGIFDSTADDR: @@ -1357,6 +1344,7 @@ static const struct proto_ops nr_proto_ops = { .getname = nr_getname, .poll = datagram_poll, .ioctl = nr_ioctl, + .gettstamp = sock_gettstamp, .listen = nr_listen, .shutdown = sock_no_shutdown, .setsockopt = nr_setsockopt, diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 5610061e7f2e..06097f1e060b 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4053,11 +4053,6 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd, spin_unlock_bh(&sk->sk_receive_queue.lock); return put_user(amount, (int __user *)arg); } - case SIOCGSTAMP: - return sock_get_timestamp(sk, (struct timeval __user *)arg); - case SIOCGSTAMPNS: - return sock_get_timestampns(sk, (struct timespec __user *)arg); - #ifdef CONFIG_INET case SIOCADDRT: case SIOCDELRT: @@ -4415,6 +4410,7 @@ static const struct proto_ops packet_ops_spkt = { .getname = packet_getname_spkt, .poll = datagram_poll, .ioctl = packet_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, @@ -4436,6 +4432,7 @@ static const struct proto_ops packet_ops = { .getname = packet_getname, .poll = packet_poll, .ioctl = packet_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = packet_setsockopt, diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index 86e1e37eb4e8..9da159f3fc2a 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -967,9 +967,6 @@ static int qrtr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } break; - case SIOCGSTAMP: - rc = sock_get_timestamp(sk, argp); - break; case SIOCADDRT: case SIOCDELRT: case SIOCSIFADDR: @@ -1032,6 +1029,7 @@ static const struct proto_ops qrtr_proto_ops = { .recvmsg = qrtr_recvmsg, .getname = qrtr_getname, .ioctl = qrtr_ioctl, + .gettstamp = sock_gettstamp, .poll = datagram_poll, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index d00a0ef39a56..64bcbb22c8f7 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1299,12 +1299,6 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return put_user(amount, (unsigned int __user *) argp); } - case SIOCGSTAMP: - return sock_get_timestamp(sk, (struct timeval __user *) argp); - - case SIOCGSTAMPNS: - return sock_get_timestampns(sk, (struct timespec __user *) argp); - case SIOCGIFADDR: case SIOCSIFADDR: case SIOCGIFDSTADDR: @@ -1472,6 +1466,7 @@ static const struct proto_ops rose_proto_ops = { .getname = rose_getname, .poll = datagram_poll, .ioctl = rose_ioctl, + .gettstamp = sock_gettstamp, .listen = rose_listen, .shutdown = sock_no_shutdown, .setsockopt = rose_setsockopt, diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index fc6c5e4bffa5..62da13b888e0 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -1028,6 +1028,7 @@ static const struct proto_ops inet6_seqpacket_ops = { .getname = sctp_getname, .poll = sctp_poll, .ioctl = inet6_ioctl, + .gettstamp = sock_gettstamp, .listen = sctp_inet_listen, .shutdown = inet_shutdown, .setsockopt = sock_common_setsockopt, diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index e948db29ab53..b640eeedc8b4 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1026,6 +1026,7 @@ static const struct proto_ops inet_seqpacket_ops = { .getname = inet_getname, /* Semantics are different. */ .poll = sctp_poll, .ioctl = inet_ioctl, + .gettstamp = sock_gettstamp, .listen = sctp_inet_listen, .shutdown = inet_shutdown, /* Looks harmless. */ .setsockopt = sock_common_setsockopt, /* IP_SOL IP_OPTION is a problem */ diff --git a/net/socket.c b/net/socket.c index b9d71b503720..6814e8dc8af1 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1069,6 +1069,15 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) err = open_related_ns(&net->ns, get_net_ns); break; + case SIOCGSTAMP: + case SIOCGSTAMPNS: + if (!sock->ops->gettstamp) { + err = -ENOIOCTLCMD; + break; + } + err = sock->ops->gettstamp(sock, argp, + cmd == SIOCGSTAMP, false); + break; default: err = sock_do_ioctl(net, sock, cmd, arg); break; @@ -2740,38 +2749,6 @@ void socket_seq_show(struct seq_file *seq) #endif /* CONFIG_PROC_FS */ #ifdef CONFIG_COMPAT -static int do_siocgstamp(struct net *net, struct socket *sock, - unsigned int cmd, void __user *up) -{ - mm_segment_t old_fs = get_fs(); - struct timeval ktv; - int err; - - set_fs(KERNEL_DS); - err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv); - set_fs(old_fs); - if (!err) - err = compat_put_timeval(&ktv, up); - - return err; -} - -static int do_siocgstampns(struct net *net, struct socket *sock, - unsigned int cmd, void __user *up) -{ - mm_segment_t old_fs = get_fs(); - struct timespec kts; - int err; - - set_fs(KERNEL_DS); - err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts); - set_fs(old_fs); - if (!err) - err = compat_put_timespec(&kts, up); - - return err; -} - static int compat_dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32) { struct compat_ifconf ifc32; @@ -3119,9 +3096,12 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCDELRT: return routing_ioctl(net, sock, cmd, argp); case SIOCGSTAMP: - return do_siocgstamp(net, sock, cmd, argp); case SIOCGSTAMPNS: - return do_siocgstampns(net, sock, cmd, argp); + if (!sock->ops->gettstamp) + return -ENOIOCTLCMD; + return sock->ops->gettstamp(sock, argp, cmd == SIOCGSTAMP, + !COMPAT_USE_64BIT_TIME); + case SIOCBONDSLAVEINFOQUERY: case SIOCBONDINFOQUERY: case SIOCSHWTSTAMP: diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index d49aa79b7997..fe2673d17009 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -1388,18 +1388,6 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } - case SIOCGSTAMP: - rc = -EINVAL; - if (sk) - rc = sock_get_timestamp(sk, - (struct timeval __user *)argp); - break; - case SIOCGSTAMPNS: - rc = -EINVAL; - if (sk) - rc = sock_get_timestampns(sk, - (struct timespec __user *)argp); - break; case SIOCGIFADDR: case SIOCSIFADDR: case SIOCGIFDSTADDR: @@ -1671,8 +1659,6 @@ static int compat_x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { void __user *argp = compat_ptr(arg); - struct sock *sk = sock->sk; - int rc = -ENOIOCTLCMD; switch(cmd) { @@ -1680,18 +1666,6 @@ static int compat_x25_ioctl(struct socket *sock, unsigned int cmd, case TIOCINQ: rc = x25_ioctl(sock, cmd, (unsigned long)argp); break; - case SIOCGSTAMP: - rc = -EINVAL; - if (sk) - rc = compat_sock_get_timestamp(sk, - (struct timeval __user*)argp); - break; - case SIOCGSTAMPNS: - rc = -EINVAL; - if (sk) - rc = compat_sock_get_timestampns(sk, - (struct timespec __user*)argp); - break; case SIOCGIFADDR: case SIOCSIFADDR: case SIOCGIFDSTADDR: @@ -1755,6 +1729,7 @@ static const struct proto_ops x25_proto_ops = { #ifdef CONFIG_COMPAT .compat_ioctl = compat_x25_ioctl, #endif + .gettstamp = sock_gettstamp, .listen = x25_listen, .shutdown = sock_no_shutdown, .setsockopt = x25_setsockopt, From patchwork Wed Aug 29 13:11:23 2018 Content-Type: text/plain; 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[209.132.180.67]) by mx.google.com with ESMTP id f89-v6si3620966plf.20.2018.08.29.06.11.48; Wed, 29 Aug 2018 06:11:48 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of netdev-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of netdev-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728365AbeH2RIk (ORCPT + 10 others); Wed, 29 Aug 2018 13:08:40 -0400 Received: from mout.kundenserver.de ([212.227.17.24]:40881 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727204AbeH2RIj (ORCPT ); Wed, 29 Aug 2018 13:08:39 -0400 Received: from wuerfel.lan ([109.193.40.16]) by mrelayeu.kundenserver.de (mreue105 [212.227.15.145]) with ESMTPA (Nemesis) id 0Lutsn-1fmRXB3jsn-0107VC; Wed, 29 Aug 2018 15:11:33 +0200 From: Arnd Bergmann To: netdev@vger.kernel.org, "David S . Miller" Cc: linux-arch@vger.kernel.org, y2038@lists.linaro.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, linux-sh@vger.kernel.org, viro@zeniv.linux.org.uk, tglx@linutronix.de, edumazet@google.com, Arnd Bergmann Subject: [PATCH net-next 3/3] net: socket: implement 64-bit timestamps Date: Wed, 29 Aug 2018 15:11:23 +0200 Message-Id: <20180829131123.3866959-1-arnd@arndb.de> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180829130308.3504560-1-arnd@arndb.de> References: <20180829130308.3504560-1-arnd@arndb.de> X-Provags-ID: V03:K1:b1U0VM3nN7jE7+NdbSu+AtFcHqE96sDDi89lEJSUmYMGzXptDTS i59dVytgCTqcyYT40EhNyPfbR5g2R5CeBwfu6lPrtYheP4AGmlXWkEVg25isBsX74wSHnGw b5k+faTgbVQ5EV9FMVy9S6BqGA7ALihzgXjj26ufaC3AA+84AcJtjygyQp0L69h1CxZTOrp 0azFUPiK7Blg0MKzTWhZw== X-UI-Out-Filterresults: notjunk:1; V01:K0:ZC369g1H0S8=:M6hYtpUabmEPQc0VdwgN1W gfxjYnleJ3wFp5BIlphc4b/G7y61Xeozhh9CjUlEl4sgAFBnmzqJCZAl2OfZ4YcxG/NbGn4KD 0II/r89pjN9EJxcMB3nI+4h7VwhSg7WKo2I2qZJLfG2+pWGIrgK7B6QKSptpxEfGy7DoC9ibS dFhEVqVcJSauuMNU45RI16GmkwphJC8pRiB7RdsaCmHo87hnMvuFwvNr2ellnAl1C+maPl36M WR03bxvsYi1vtP4UGlVMFtc3sD2UyQGLgvgAQVQagZJRJH8/PbXZIfL6biV+BRDPJ+Sj3Nnzo 71I+Q4+Fn3EdLxKQJB2bnYqAkZf2Ggi+c7nanTlzk/4aBFZWw7zgCcNZRCVGhpcPWYNLkV6eZ TWUL0jDPF1EJ7BZ753+sOcA2UQ/1BHdp8Jy0GKuY5FKI2ENA/QDy4mulI639XWs/XmIYtxdOe 7SB/Jxsolunv84fVmIIXianmHDiIgKKVFjDOl5E9PiJeEnFqOpw/DxIy7tX9hx8V12dx0XODo N0Hp/bf9JsLfL/ODcIttd+KI6KM7jLkcqD+24ILfBEm5i0n9YGPMc+5Lo8+fdZtomwcNY4HNf HucXZZcBHRqSqDNo6Cxtj7oqKOGvV3aqDYs15i7dzkBSlKVMbFNi6Un6Hmmxf6ZUCtt9Ht18n 3Sczb0L0XzegSQnymzT6wFz47glOb1Ug8YXmRNkes6ad99oIIB2rwivfGu2eqh6FFCUI= Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The 'timeval' and 'timespec' data structures used for socket timestamps are going to be redefined in user space based on 64-bit time_t in future versions of the C library to deal with the y2038 overflow problem, which breaks the ABI definition. Unlike many modern ioctl commands, SIOCGSTAMP and SIOCGSTAMPNS do not use the _IOR() macro to encode the size of the transferred data, so it remains ambiguous whether the application uses the old or new layout. The best workaround I could find is rather ugly: we redefine the command code based on the size of the respective data structure with a ternary operator. This lets it get evaluated as late as possible, hopefully after that structure is visible to the caller. We cannot use an #ifdef here, because inux/sockios.h might have been included before any libc header that could determine the size of time_t. The ioctl implementation now interprets the new command codes as always referring to the 64-bit structure on all architectures, while the old architecture specific command code still refers to the old architecture specific layout. The new command number is only used when they are actually different. Signed-off-by: Arnd Bergmann --- arch/alpha/include/uapi/asm/sockios.h | 4 ++-- arch/mips/include/uapi/asm/sockios.h | 4 ++-- arch/sh/include/uapi/asm/sockios.h | 5 +++-- arch/xtensa/include/uapi/asm/sockios.h | 4 ++-- include/uapi/asm-generic/sockios.h | 4 ++-- include/uapi/linux/sockios.h | 21 +++++++++++++++++++++ net/socket.c | 22 +++++++++++++++++----- 7 files changed, 49 insertions(+), 15 deletions(-) -- 2.18.0 diff --git a/arch/alpha/include/uapi/asm/sockios.h b/arch/alpha/include/uapi/asm/sockios.h index ba287e4b01bf..af92bc27c3be 100644 --- a/arch/alpha/include/uapi/asm/sockios.h +++ b/arch/alpha/include/uapi/asm/sockios.h @@ -11,7 +11,7 @@ #define SIOCSPGRP _IOW('s', 8, pid_t) #define SIOCGPGRP _IOR('s', 9, pid_t) -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ +#define SIOCGSTAMP_OLD 0x8906 /* Get stamp (timeval) */ +#define SIOCGSTAMPNS_OLD 0x8907 /* Get stamp (timespec) */ #endif /* _ASM_ALPHA_SOCKIOS_H */ diff --git a/arch/mips/include/uapi/asm/sockios.h b/arch/mips/include/uapi/asm/sockios.h index 5b40a88593fa..66f60234f290 100644 --- a/arch/mips/include/uapi/asm/sockios.h +++ b/arch/mips/include/uapi/asm/sockios.h @@ -21,7 +21,7 @@ #define SIOCSPGRP _IOW('s', 8, pid_t) #define SIOCGPGRP _IOR('s', 9, pid_t) -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ +#define SIOCGSTAMP_OLD 0x8906 /* Get stamp (timeval) */ +#define SIOCGSTAMPNS_OLD 0x8907 /* Get stamp (timespec) */ #endif /* _ASM_SOCKIOS_H */ diff --git a/arch/sh/include/uapi/asm/sockios.h b/arch/sh/include/uapi/asm/sockios.h index 17313d2c3527..ef18a668456d 100644 --- a/arch/sh/include/uapi/asm/sockios.h +++ b/arch/sh/include/uapi/asm/sockios.h @@ -10,6 +10,7 @@ #define SIOCSPGRP _IOW('s', 8, pid_t) #define SIOCGPGRP _IOR('s', 9, pid_t) -#define SIOCGSTAMP _IOR('s', 100, struct timeval) /* Get stamp (timeval) */ -#define SIOCGSTAMPNS _IOR('s', 101, struct timespec) /* Get stamp (timespec) */ +#define SIOCGSTAMP_OLD _IOR('s', 100, struct timeval) /* Get stamp (timeval) */ +#define SIOCGSTAMPNS_OLD _IOR('s', 101, struct timespec) /* Get stamp (timespec) */ + #endif /* __ASM_SH_SOCKIOS_H */ diff --git a/arch/xtensa/include/uapi/asm/sockios.h b/arch/xtensa/include/uapi/asm/sockios.h index fb8ac3607189..1a1f58f4b75a 100644 --- a/arch/xtensa/include/uapi/asm/sockios.h +++ b/arch/xtensa/include/uapi/asm/sockios.h @@ -26,7 +26,7 @@ #define SIOCSPGRP _IOW('s', 8, pid_t) #define SIOCGPGRP _IOR('s', 9, pid_t) -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ +#define SIOCGSTAMP_OLD 0x8906 /* Get stamp (timeval) */ +#define SIOCGSTAMPNS_OLD 0x8907 /* Get stamp (timespec) */ #endif /* _XTENSA_SOCKIOS_H */ diff --git a/include/uapi/asm-generic/sockios.h b/include/uapi/asm-generic/sockios.h index 64f658c7cec2..44fa3ed70483 100644 --- a/include/uapi/asm-generic/sockios.h +++ b/include/uapi/asm-generic/sockios.h @@ -8,7 +8,7 @@ #define FIOGETOWN 0x8903 #define SIOCGPGRP 0x8904 #define SIOCATMARK 0x8905 -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ +#define SIOCGSTAMP_OLD 0x8906 /* Get stamp (timeval) */ +#define SIOCGSTAMPNS_OLD 0x8907 /* Get stamp (timespec) */ #endif /* __ASM_GENERIC_SOCKIOS_H */ diff --git a/include/uapi/linux/sockios.h b/include/uapi/linux/sockios.h index d393e9ed3964..7d1bccbbef78 100644 --- a/include/uapi/linux/sockios.h +++ b/include/uapi/linux/sockios.h @@ -19,6 +19,7 @@ #ifndef _LINUX_SOCKIOS_H #define _LINUX_SOCKIOS_H +#include #include /* Linux-specific socket ioctls */ @@ -27,6 +28,26 @@ #define SOCK_IOC_TYPE 0x89 +/* + * the timeval/timespec data structure layout is defined by libc, + * so we need to cover both possible versions on 32-bit. + */ +/* Get stamp (timeval) */ +#define SIOCGSTAMP_NEW _IOR(SOCK_IOC_TYPE, 0x06, long long[2]) +/* Get stamp (timespec) */ +#define SIOCGSTAMPNS_NEW _IOR(SOCK_IOC_TYPE, 0x07, long long[2]) + +#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__)) +/* on 64-bit and x32, avoid the ?: operator */ +#define SIOCGSTAMP SIOCGSTAMP_OLD +#define SIOCGSTAMPNS SIOCGSTAMPNS_OLD +#else +#define SIOCGSTAMP ((sizeof(struct timeval)) == 8 ? \ + SIOCGSTAMP_OLD : SIOCGSTAMP_NEW) +#define SIOCGSTAMPNS ((sizeof(struct timespec)) == 8 ? \ + SIOCGSTAMPNS_OLD : SIOCGSTAMPNS_NEW) +#endif + /* Routing table calls. */ #define SIOCADDRT 0x890B /* add routing table entry */ #define SIOCDELRT 0x890C /* delete routing table entry */ diff --git a/net/socket.c b/net/socket.c index 6814e8dc8af1..9762e7d5378b 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1069,14 +1069,24 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) err = open_related_ns(&net->ns, get_net_ns); break; - case SIOCGSTAMP: - case SIOCGSTAMPNS: + case SIOCGSTAMP_OLD: + case SIOCGSTAMPNS_OLD: if (!sock->ops->gettstamp) { err = -ENOIOCTLCMD; break; } err = sock->ops->gettstamp(sock, argp, - cmd == SIOCGSTAMP, false); + cmd == SIOCGSTAMP_OLD, + !IS_ENABLED(CONFIG_64BIT)); + case SIOCGSTAMP_NEW: + case SIOCGSTAMPNS_NEW: + if (!sock->ops->gettstamp) { + err = -ENOIOCTLCMD; + break; + } + err = sock->ops->gettstamp(sock, argp, + cmd == SIOCGSTAMP_NEW, + false); break; default: err = sock_do_ioctl(net, sock, cmd, arg); @@ -3095,8 +3105,8 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCADDRT: case SIOCDELRT: return routing_ioctl(net, sock, cmd, argp); - case SIOCGSTAMP: - case SIOCGSTAMPNS: + case SIOCGSTAMP_OLD: + case SIOCGSTAMPNS_OLD: if (!sock->ops->gettstamp) return -ENOIOCTLCMD; return sock->ops->gettstamp(sock, argp, cmd == SIOCGSTAMP, @@ -3119,6 +3129,8 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCADDDLCI: case SIOCDELDLCI: case SIOCGSKNS: + case SIOCGSTAMP_NEW: + case SIOCGSTAMPNS_NEW: return sock_ioctl(file, cmd, arg); case SIOCGIFFLAGS: