[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec re…

…solution Now network timestamps use ktime_t infrastructure, we can add a new ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'. User programs can thus access to nanosecond resolution. Signed-off-by: Eric Dumazet <[email protected]> CC: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
chewitt · Apr 26, 2007 · ae40eb1 · ae40eb1
1 parent cb69cc5
commit ae40eb1
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Showing 37 changed files with 146 additions and 22 deletions.
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
@@ -266,6 +266,23 @@ static int do_siocgstamp(unsigned int fd, unsigned int cmd, unsigned long arg)
 	return err;
 }
 
+static int do_siocgstampns(unsigned int fd, unsigned int cmd, unsigned long arg)
+{
+	struct compat_timespec __user *up = compat_ptr(arg);
+	struct timespec kts;
+	mm_segment_t old_fs = get_fs();
+	int err;
+
+	set_fs(KERNEL_DS);
+	err = sys_ioctl(fd, cmd, (unsigned long)&kts);
+	set_fs(old_fs);
+	if (!err) {
+		err = put_user(kts.tv_sec, &up->tv_sec);
+		err |= __put_user(kts.tv_nsec, &up->tv_nsec);
+	}
+	return err;
+}
+
 struct ifmap32 {
 	compat_ulong_t mem_start;
 	compat_ulong_t mem_end;
@@ -2437,6 +2454,7 @@ HANDLE_IOCTL(SIOCBRDELIF, dev_ifsioc)
 /* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
 HANDLE_IOCTL(SIOCRTMSG, ret_einval)
 HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp)
+HANDLE_IOCTL(SIOCGSTAMPNS, do_siocgstampns)
 #endif
 #ifdef CONFIG_BLOCK
 HANDLE_IOCTL(HDIO_GETGEO, hdio_getgeo)

diff --git a/include/asm-alpha/sockios.h b/include/asm-alpha/sockios.h
@@ -10,6 +10,7 @@
 #define SIOCSPGRP	_IOW('s', 8, pid_t)
 #define SIOCGPGRP	_IOR('s', 9, pid_t)
 
-#define SIOCGSTAMP	0x8906		/* Get stamp - linux-specific */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* _ASM_ALPHA_SOCKIOS_H */
diff --git a/include/asm-arm/sockios.h b/include/asm-arm/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-arm26/sockios.h b/include/asm-arm26/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-avr32/sockios.h b/include/asm-avr32/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* __ASM_AVR32_SOCKIOS_H */
diff --git a/include/asm-cris/sockios.h b/include/asm-cris/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-frv/sockios.h b/include/asm-frv/sockios.h
@@ -7,7 +7,8 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* _ASM_SOCKIOS__ */
 
diff --git a/include/asm-h8300/sockios.h b/include/asm-h8300/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* __ARCH_H8300_SOCKIOS__ */
diff --git a/include/asm-i386/sockios.h b/include/asm-i386/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-ia64/sockios.h b/include/asm-ia64/sockios.h
@@ -14,6 +14,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* _ASM_IA64_SOCKIOS_H */
diff --git a/include/asm-m32r/sockios.h b/include/asm-m32r/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif  /* _ASM_M32R_SOCKIOS_H */
diff --git a/include/asm-m68k/sockios.h b/include/asm-m68k/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* __ARCH_M68K_SOCKIOS__ */
diff --git a/include/asm-mips/sockios.h b/include/asm-mips/sockios.h
@@ -20,6 +20,7 @@
 #define SIOCSPGRP	_IOW('s', 8, pid_t)
 #define SIOCGPGRP	_IOR('s', 9, pid_t)
 
-#define SIOCGSTAMP	0x8906			/* Get stamp - linux-specific */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* _ASM_SOCKIOS_H */
diff --git a/include/asm-parisc/sockios.h b/include/asm-parisc/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-powerpc/sockios.h b/include/asm-powerpc/sockios.h
@@ -14,6 +14,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif	/* _ASM_POWERPC_SOCKIOS_H */
diff --git a/include/asm-s390/sockios.h b/include/asm-s390/sockios.h
@@ -15,6 +15,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-sh/sockios.h b/include/asm-sh/sockios.h
@@ -9,5 +9,6 @@
 #define SIOCSPGRP	_IOW('s', 8, pid_t)
 #define SIOCGPGRP	_IOR('s', 9, pid_t)
 
-#define SIOCGSTAMP	_IOR('s', 100, struct timeval) /* Get stamp - linux-specific */
+#define SIOCGSTAMP	_IOR('s', 100, struct timeval) /* Get stamp (timeval) */
+#define SIOCGSTAMPNS	_IOR('s', 101, struct timespec) /* Get stamp (timespec) */
 #endif /* __ASM_SH_SOCKIOS_H */
diff --git a/include/asm-sh64/sockios.h b/include/asm-sh64/sockios.h
@@ -20,5 +20,6 @@
 #define SIOCSPGRP	_IOW('s', 8, pid_t)
 #define SIOCGPGRP	_IOR('s', 9, pid_t)
 
-#define SIOCGSTAMP	_IOR('s', 100, struct timeval) /* Get stamp - linux-specific */
+#define SIOCGSTAMP	_IOR('s', 100, struct timeval) /* Get stamp (timeval) */
+#define SIOCGSTAMPNS	_IOR('s', 101, struct timespec) /* Get stamp (timespec) */
 #endif /* __ASM_SH64_SOCKIOS_H */
diff --git a/include/asm-sparc/sockios.h b/include/asm-sparc/sockios.h
@@ -7,7 +7,8 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* !(_ASM_SPARC_SOCKIOS_H) */
 
diff --git a/include/asm-sparc64/sockios.h b/include/asm-sparc64/sockios.h
@@ -7,7 +7,8 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* !(_ASM_SPARC64_SOCKIOS_H) */
 
diff --git a/include/asm-v850/sockios.h b/include/asm-v850/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* __V850_SOCKIOS_H__ */
diff --git a/include/asm-x86_64/sockios.h b/include/asm-x86_64/sockios.h
@@ -7,6 +7,7 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif
diff --git a/include/asm-xtensa/sockios.h b/include/asm-xtensa/sockios.h
@@ -25,6 +25,7 @@
 #define SIOCSPGRP	_IOW('s', 8, pid_t)
 #define SIOCGPGRP	_IOR('s', 9, pid_t)
 
-#define SIOCGSTAMP	0x8906		/* Get stamp - linux-specific */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif	/* _XTENSA_SOCKIOS_H */
diff --git a/include/net/compat.h b/include/net/compat.h
@@ -25,6 +25,7 @@ struct compat_cmsghdr {
 };
 
 extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
+extern int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
 
 #else /* defined(CONFIG_COMPAT) */
 #define compat_msghdr	msghdr		/* to avoid compiler warnings */

diff --git a/include/net/sock.h b/include/net/sock.h
@@ -1329,6 +1329,7 @@ static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_e
 
 extern void sock_enable_timestamp(struct sock *sk);
 extern int sock_get_timestamp(struct sock *, struct timeval __user *);
+extern int sock_get_timestampns(struct sock *, struct timespec __user *);
 
 /* 
  *	Enable debug/info messages 

diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
@@ -1771,6 +1771,9 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		case SIOCGSTAMP:
 			rc = sock_get_timestamp(sk, argp);
 			break;
+		case SIOCGSTAMPNS:
+			rc = sock_get_timestampns(sk, argp);
+			break;
 		/* Routing */
 		case SIOCADDRT:
 		case SIOCDELRT:

diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
@@ -82,6 +82,9 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		case SIOCGSTAMP: /* borrowed from IP */
 			error = sock_get_timestamp(sk, argp);
 			goto done;
+		case SIOCGSTAMPNS: /* borrowed from IP */
+			error = sock_get_timestampns(sk, argp);
+			goto done;
 		case ATM_SETSC:
 			printk(KERN_WARNING "ATM_SETSC is obsolete\n");
 			error = 0;

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
@@ -1711,6 +1711,10 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		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: {

diff --git a/net/compat.c b/net/compat.c
@@ -564,6 +564,30 @@ int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 }
 EXPORT_SYMBOL(compat_sock_get_timestamp);
 
+int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
+{
+	struct compat_timespec __user *ctv =
+			(struct compat_timespec __user*) userstamp;
+	int err = -ENOENT;
+	struct timespec ts;
+
+	if (!sock_flag(sk, SOCK_TIMESTAMP))
+		sock_enable_timestamp(sk);
+	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);
+
 asmlinkage long 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
@@ -1567,6 +1567,22 @@ int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 }
 EXPORT_SYMBOL(sock_get_timestamp);
 
+int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
+{
+	struct timespec ts;
+	if (!sock_flag(sk, SOCK_TIMESTAMP))
+		sock_enable_timestamp(sk);
+	ts = ktime_to_timespec(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);
+	}
+	return copy_to_user(userstamp, &ts, sizeof(ts)) ? -EFAULT : 0;
+}
+EXPORT_SYMBOL(sock_get_timestampns);
+
 void sock_enable_timestamp(struct sock *sk)
 {
 	if (!sock_flag(sk, SOCK_TIMESTAMP)) {

diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
@@ -727,6 +727,9 @@ static int econet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg
 		case SIOCGSTAMP:
 			return sock_get_timestamp(sk, argp);
 
+		case SIOCGSTAMPNS:
+			return sock_get_timestampns(sk, argp);
+
 		case SIOCSIFADDR:
 		case SIOCGIFADDR:
 			return ec_dev_ioctl(sock, cmd, argp);

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
@@ -755,6 +755,9 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		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:
 		case SIOCRTMSG:

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
@@ -443,6 +443,9 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	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:
 

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
@@ -1209,6 +1209,12 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		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:

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
@@ -1545,6 +1545,8 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
 		}
 		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:

diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
@@ -1296,6 +1296,9 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	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: