Add SO_TIMESTAMPING_NEW variant of socket timestamp options. This is the y2038 safe versions of the SO_TIMESTAMPING_OLD for all architectures.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: chris@zankel.net Cc: fenghua.yu@intel.com Cc: rth@twiddle.net Cc: tglx@linutronix.de Cc: ubraun@linux.ibm.com Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-s390@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: sparclinux@vger.kernel.org --- arch/alpha/include/uapi/asm/socket.h | 5 +- arch/mips/include/uapi/asm/socket.h | 5 +- arch/parisc/include/uapi/asm/socket.h | 5 +- arch/sparc/include/uapi/asm/socket.h | 8 +-- include/linux/socket.h | 7 +++ include/uapi/asm-generic/socket.h | 5 +- include/uapi/linux/errqueue.h | 4 ++ net/core/scm.c | 27 ++++++++++ net/core/sock.c | 73 +++++++++++++++------------ net/ipv4/tcp.c | 29 ++++++----- net/smc/af_smc.c | 3 +- net/socket.c | 16 +++--- 12 files changed, 122 insertions(+), 65 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 352e3dc0b3d9..8b9f6f7f8087 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -116,19 +116,20 @@
#define SO_TIMESTAMP_NEW 62 #define SO_TIMESTAMPNS_NEW 63 +#define SO_TIMESTAMPING_NEW 64
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 #define SO_TIMESTAMP SO_TIMESTAMP_OLD #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD #else #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW) #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW) +#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) #endif
-#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD - #define SCM_TIMESTAMP SO_TIMESTAMP #define SCM_TIMESTAMPNS SO_TIMESTAMPNS #define SCM_TIMESTAMPING SO_TIMESTAMPING diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index d1752e3f1248..9fc80c5d54e4 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -126,19 +126,20 @@
#define SO_TIMESTAMP_NEW 62 #define SO_TIMESTAMPNS_NEW 63 +#define SO_TIMESTAMPING_NEW 64
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 #define SO_TIMESTAMP SO_TIMESTAMP_OLD #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD #else #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW) #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW) +#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) #endif
-#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD - #define SCM_TIMESTAMP SO_TIMESTAMP #define SCM_TIMESTAMPNS SO_TIMESTAMPNS #define SCM_TIMESTAMPING SO_TIMESTAMPING diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index 0a45b668abd1..82f1c9447d6b 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -107,19 +107,20 @@
#define SO_TIMESTAMP_NEW 0x4037 #define SO_TIMESTAMPNS_NEW 0x4038 +#define SO_TIMESTAMPING_NEW 0x4039
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 #define SO_TIMESTAMP SO_TIMESTAMP_OLD #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD #else #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW) #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW) +#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) #endif
-#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD - #define SCM_TIMESTAMP SO_TIMESTAMP #define SCM_TIMESTAMPNS SO_TIMESTAMPNS #define SCM_TIMESTAMPING SO_TIMESTAMPING diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index dc8527cae5a7..5bdbb25c28d2 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -106,20 +106,22 @@ #define SO_TIMESTAMPNS_OLD 0x0021 #define SO_TIMESTAMPING_OLD 0x0023
-#define SO_TIMESTAMP_NEW 0x0040 -#define SO_TIMESTAMPNS_NEW 0x0041 +#define SO_TIMESTAMP_NEW 0x0041 +#define SO_TIMESTAMPNS_NEW 0x0042 +#define SO_TIMESTAMPING_NEW 0x0043
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 #define SO_TIMESTAMP SO_TIMESTAMP_OLD #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD #else #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW) #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW) +#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) #endif
-#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP #define SCM_TIMESTAMPNS SO_TIMESTAMPNS diff --git a/include/linux/socket.h b/include/linux/socket.h index 8b571e9b9f76..372fd77698a2 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -350,6 +350,13 @@ extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
struct timespec64;
+struct scm_timestamping_internal { + struct timespec64 ts[3]; +}; + +extern void put_cmsg_scm_timestamping64(struct msghdr *msg, struct scm_timestamping_internal *tss); +extern void put_cmsg_scm_timestamping(struct msghdr *msg, struct scm_timestamping_internal *tss); + /* The __sys_...msg variants allow MSG_CMSG_COMPAT iff * forbid_cmsg_compat==false */ diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 0b0fae6b57a9..2fdfb6126246 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -110,6 +110,7 @@
#define SO_TIMESTAMP_NEW 62 #define SO_TIMESTAMPNS_NEW 63 +#define SO_TIMESTAMPING_NEW 64
#if !defined(__KERNEL__)
@@ -117,13 +118,13 @@ /* on 64-bit and x32, avoid the ?: operator */ #define SO_TIMESTAMP SO_TIMESTAMP_OLD #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD #else #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW) #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW) +#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) #endif
-#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD - #define SCM_TIMESTAMP SO_TIMESTAMP #define SCM_TIMESTAMPNS SO_TIMESTAMPNS #define SCM_TIMESTAMPING SO_TIMESTAMPING diff --git a/include/uapi/linux/errqueue.h b/include/uapi/linux/errqueue.h index c0151200f7d1..d955b9e32288 100644 --- a/include/uapi/linux/errqueue.h +++ b/include/uapi/linux/errqueue.h @@ -41,6 +41,10 @@ struct scm_timestamping { struct timespec ts[3]; };
+struct scm_timestamping64 { + struct __kernel_timespec ts[3]; +}; + /* The type of scm_timestamping, passed in sock_extended_err ee_info. * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0] * is zero, then this is a hardware timestamp and recorded in ts[2]. diff --git a/net/core/scm.c b/net/core/scm.c index b1ff8a441748..52ef219cf6df 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -29,6 +29,7 @@ #include <linux/pid.h> #include <linux/nsproxy.h> #include <linux/slab.h> +#include <linux/errqueue.h>
#include <linux/uaccess.h>
@@ -252,6 +253,32 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) } EXPORT_SYMBOL(put_cmsg);
+void put_cmsg_scm_timestamping64(struct msghdr *msg, struct scm_timestamping_internal *tss_internal) +{ + struct scm_timestamping64 tss; + int i; + + for (i = 0; i < ARRAY_SIZE(tss.ts); i++) { + tss.ts[i].tv_sec = tss_internal->ts[i].tv_sec; + tss.ts[i].tv_nsec = tss_internal->ts[i].tv_nsec; + } + + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_NEW, sizeof(tss), &tss); +} +EXPORT_SYMBOL(put_cmsg_scm_timestamping64); + +void put_cmsg_scm_timestamping(struct msghdr *msg, struct scm_timestamping_internal *tss_internal) +{ + struct scm_timestamping tss; + int i; + + for (i = 0; i < ARRAY_SIZE(tss.ts); i++) + tss.ts[i] = timespec64_to_timespec(tss_internal->ts[i]); + + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_OLD, sizeof(tss), &tss); +} +EXPORT_SYMBOL(put_cmsg_scm_timestamping); + void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) { struct cmsghdr __user *cm diff --git a/net/core/sock.c b/net/core/sock.c index 7b485dfaa400..29cc1f0f0071 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -677,6 +677,45 @@ static void setsockopt_timestamp(struct sock *sk, int type, int val) sock_enable_timestamp(sk, SOCK_TIMESTAMP); }
+static int setsockopt_timestamping(struct sock *sk, int type, int val) +{ + if (type == SO_TIMESTAMPING_NEW) + sock_set_flag(sk, SOCK_TSTAMP_NEW); + + if (val & ~SOF_TIMESTAMPING_MASK) + return -EINVAL; + + if (val & SOF_TIMESTAMPING_OPT_ID && + !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) { + if (sk->sk_protocol == IPPROTO_TCP && + sk->sk_type == SOCK_STREAM) { + if ((1 << sk->sk_state) & + (TCPF_CLOSE | TCPF_LISTEN)) + return -EINVAL; + sk->sk_tskey = tcp_sk(sk)->snd_una; + } else { + sk->sk_tskey = 0; + } + } + + if (val & SOF_TIMESTAMPING_OPT_STATS && + !(val & SOF_TIMESTAMPING_OPT_TSONLY)) + return -EINVAL; + + sk->sk_tsflags = val; + if (val & SOF_TIMESTAMPING_RX_SOFTWARE) { + sock_enable_timestamp(sk, + SOCK_TIMESTAMPING_RX_SOFTWARE); + } else { + if (type == SO_TIMESTAMPING_NEW) + sock_reset_flag(sk, SOCK_TSTAMP_NEW); + sock_disable_timestamp(sk, + (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE)); + } + + return 0; +} + /* * This is meant for all protocols to use and covers goings on * at the socket level. Everything here is generic. @@ -852,39 +891,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break;
case SO_TIMESTAMPING_OLD: - if (val & ~SOF_TIMESTAMPING_MASK) { - ret = -EINVAL; - break; - } - - if (val & SOF_TIMESTAMPING_OPT_ID && - !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) { - if (sk->sk_protocol == IPPROTO_TCP && - sk->sk_type == SOCK_STREAM) { - if ((1 << sk->sk_state) & - (TCPF_CLOSE | TCPF_LISTEN)) { - ret = -EINVAL; - break; - } - sk->sk_tskey = tcp_sk(sk)->snd_una; - } else { - sk->sk_tskey = 0; - } - } - - if (val & SOF_TIMESTAMPING_OPT_STATS && - !(val & SOF_TIMESTAMPING_OPT_TSONLY)) { - ret = -EINVAL; - break; - } - - sk->sk_tsflags = val; - if (val & SOF_TIMESTAMPING_RX_SOFTWARE) - sock_enable_timestamp(sk, - SOCK_TIMESTAMPING_RX_SOFTWARE); - else - sock_disable_timestamp(sk, - (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE)); + ret = setsockopt_timestamping(sk, optname, val); break;
case SO_RCVLOWAT: diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index b470f470343a..09ef0d8141fb 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1847,17 +1847,17 @@ static int tcp_zerocopy_receive(struct sock *sk, #endif
static void tcp_update_recv_tstamps(struct sk_buff *skb, - struct scm_timestamping *tss) + struct scm_timestamping_internal *tss) { if (skb->tstamp) - tss->ts[0] = ktime_to_timespec(skb->tstamp); + tss->ts[0] = ktime_to_timespec64(skb->tstamp); else - tss->ts[0] = (struct timespec) {0}; + tss->ts[0] = (struct timespec64) {0};
if (skb_hwtstamps(skb)->hwtstamp) - tss->ts[2] = ktime_to_timespec(skb_hwtstamps(skb)->hwtstamp); + tss->ts[2] = ktime_to_timespec64(skb_hwtstamps(skb)->hwtstamp); else - tss->ts[2] = (struct timespec) {0}; + tss->ts[2] = (struct timespec64) {0}; }
static void tcp_recv_sw_timestamp(struct msghdr *msg, const struct sock *sk, struct timespec64 *ts) @@ -1900,29 +1900,30 @@ static void tcp_recv_sw_timestamp(struct msghdr *msg, const struct sock *sk, str
/* Similar to __sock_recv_timestamp, but does not require an skb */ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, - struct scm_timestamping *tss) + struct scm_timestamping_internal *tss) { bool has_timestamping = false; - struct timespec64 ts = timespec_to_timespec64(tss->ts[0]);
- tcp_recv_sw_timestamp(msg, sk, &ts); + tcp_recv_sw_timestamp(msg, sk, &tss->ts[0]);
if (sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE) has_timestamping = true; else - tss->ts[0] = (struct timespec) {0}; + tss->ts[0] = (struct timespec64) {0};
if (tss->ts[2].tv_sec || tss->ts[2].tv_nsec) { if (sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) has_timestamping = true; else - tss->ts[2] = (struct timespec) {0}; + tss->ts[2] = (struct timespec64) {0}; }
if (has_timestamping) { - tss->ts[1] = (struct timespec) {0}; - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_OLD, - sizeof(*tss), tss); + tss->ts[1] = (struct timespec64) {0}; + if (sock_flag(sk, SOCK_TSTAMP_NEW)) + put_cmsg_scm_timestamping64(msg, tss); + else + put_cmsg_scm_timestamping(msg, tss); } }
@@ -1963,7 +1964,7 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, long timeo; struct sk_buff *skb, *last; u32 urg_hole = 0; - struct scm_timestamping tss; + struct scm_timestamping_internal tss; bool has_tss = false; bool has_cmsg;
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 80e2119f1c70..e588305e9cf4 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -280,7 +280,8 @@ static void smc_copy_sock_settings(struct sock *nsk, struct sock *osk, (1UL << SOCK_RXQ_OVFL) | \ (1UL << SOCK_WIFI_STATUS) | \ (1UL << SOCK_NOFCS) | \ - (1UL << SOCK_FILTER_LOCKED)) + (1UL << SOCK_FILTER_LOCKED) | \ + (1UL << SOCK_TSTAMP_NEW)) /* copy only relevant settings and flags of SOL_SOCKET level from smc to * clc socket (since smc is not called for these options from net/core) */ diff --git a/net/socket.c b/net/socket.c index 9abeb6bc9cfe..14fa6febfc3d 100644 --- a/net/socket.c +++ b/net/socket.c @@ -731,6 +731,7 @@ static void sock_recv_sw_timestamp(struct msghdr *msg, struct sock *sk, sizeof(ts), &ts); } } + /* * called from sock_recv_timestamp() if sock_flag(sk, SOCK_RCVTSTAMP) * or sock_flag(sk, SOCK_RCVTSTAMPNS) @@ -739,8 +740,8 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) { int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP) || sock_flag(sk, SOCK_RCVTSTAMPNS); - struct scm_timestamping tss; - int empty = 1, false_tstamp = 0; + struct scm_timestamping_internal tss; + int empty = 1, false_tstamp = 0, new_tstamp = 0; struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
@@ -756,20 +757,23 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
memset(&tss, 0, sizeof(tss)); if ((sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE) && - ktime_to_timespec_cond(skb->tstamp, tss.ts + 0)) + ktime_to_timespec64_cond(skb->tstamp, tss.ts + 0)) empty = 0; if (shhwtstamps && (sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) && !skb_is_swtx_tstamp(skb, false_tstamp) && - ktime_to_timespec_cond(shhwtstamps->hwtstamp, tss.ts + 2)) { + ktime_to_timespec64_cond(shhwtstamps->hwtstamp, tss.ts + 2)) { empty = 0; if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_PKTINFO) && !skb_is_err_queue(skb)) put_ts_pktinfo(msg, skb); } if (!empty) { - put_cmsg(msg, SOL_SOCKET, - SO_TIMESTAMPING_OLD, sizeof(tss), &tss); + new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); + if (new_tstamp) + put_cmsg_scm_timestamping64(msg, &tss); + else + put_cmsg_scm_timestamping(msg, &tss);
if (skb_is_err_queue(skb) && skb->len && SKB_EXT_ERR(skb)->opt_stats)