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authorEric Dumazet <dada1@cosmosbay.com>2007-03-26 07:14:49 +0200
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 07:24:21 +0200
commit92f37fd2ee805aa77925c1e64fd56088b46094fc (patch)
tree8251c38b83ab362116dac89d94412ce229b42831 /include
parent[UDP]: Use __skb_pull since we have checked it won't fail with pskb_may_pull (diff)
downloadlinux-92f37fd2ee805aa77925c1e64fd56088b46094fc.tar.xz
linux-92f37fd2ee805aa77925c1e64fd56088b46094fc.zip
[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support
Now that network timestamps use ktime_t infrastructure, we can add a new SOL_SOCKET sockopt SO_TIMESTAMPNS. This command is similar to SO_TIMESTAMP, but permits transmission of a 'timespec struct' instead of a 'timeval struct' control message. (nanosecond resolution instead of microsecond) Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are mutually exclusive. sock_recv_timestamp() became too big to be fully inlined so I added a __sock_recv_timestamp() helper function. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: linux-arch@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/asm-alpha/socket.h2
-rw-r--r--include/asm-arm/socket.h2
-rw-r--r--include/asm-arm26/socket.h2
-rw-r--r--include/asm-avr32/socket.h2
-rw-r--r--include/asm-cris/socket.h2
-rw-r--r--include/asm-frv/socket.h2
-rw-r--r--include/asm-h8300/socket.h2
-rw-r--r--include/asm-i386/socket.h2
-rw-r--r--include/asm-ia64/socket.h2
-rw-r--r--include/asm-m32r/socket.h2
-rw-r--r--include/asm-m68k/socket.h2
-rw-r--r--include/asm-mips/socket.h2
-rw-r--r--include/asm-parisc/socket.h2
-rw-r--r--include/asm-powerpc/socket.h2
-rw-r--r--include/asm-s390/socket.h2
-rw-r--r--include/asm-sh/socket.h2
-rw-r--r--include/asm-sparc/socket.h2
-rw-r--r--include/asm-sparc64/socket.h2
-rw-r--r--include/asm-v850/socket.h2
-rw-r--r--include/asm-x86_64/socket.h2
-rw-r--r--include/asm-xtensa/socket.h2
-rw-r--r--include/net/sock.h17
22 files changed, 49 insertions, 10 deletions
diff --git a/include/asm-alpha/socket.h b/include/asm-alpha/socket.h
index d22ab97ea72e..1fede7f92860 100644
--- a/include/asm-alpha/socket.h
+++ b/include/asm-alpha/socket.h
@@ -52,6 +52,8 @@
#define SO_PEERSEC 30
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 19
diff --git a/include/asm-arm/socket.h b/include/asm-arm/socket.h
index 19f7df702b06..65a1a64bf934 100644
--- a/include/asm-arm/socket.h
+++ b/include/asm-arm/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-arm26/socket.h b/include/asm-arm26/socket.h
index 19f7df702b06..65a1a64bf934 100644
--- a/include/asm-arm26/socket.h
+++ b/include/asm-arm26/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-avr32/socket.h b/include/asm-avr32/socket.h
index 543229de8173..a0d0507a5034 100644
--- a/include/asm-avr32/socket.h
+++ b/include/asm-avr32/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* __ASM_AVR32_SOCKET_H */
diff --git a/include/asm-cris/socket.h b/include/asm-cris/socket.h
index 01cfdf1d6d33..5b18dfdf1748 100644
--- a/include/asm-cris/socket.h
+++ b/include/asm-cris/socket.h
@@ -51,6 +51,8 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-frv/socket.h b/include/asm-frv/socket.h
index 31db18fc871f..a823befd11dd 100644
--- a/include/asm-frv/socket.h
+++ b/include/asm-frv/socket.h
@@ -49,6 +49,8 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-h8300/socket.h b/include/asm-h8300/socket.h
index ebc830fee0d0..39911d8c9684 100644
--- a/include/asm-h8300/socket.h
+++ b/include/asm-h8300/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-i386/socket.h b/include/asm-i386/socket.h
index 5755d57c4e95..99ca648b94c5 100644
--- a/include/asm-i386/socket.h
+++ b/include/asm-i386/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-ia64/socket.h b/include/asm-ia64/socket.h
index d638ef3d50c3..9e42ce43cfbe 100644
--- a/include/asm-ia64/socket.h
+++ b/include/asm-ia64/socket.h
@@ -58,5 +58,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_IA64_SOCKET_H */
diff --git a/include/asm-m32r/socket.h b/include/asm-m32r/socket.h
index acdf748fcdc8..793d5d30c850 100644
--- a/include/asm-m32r/socket.h
+++ b/include/asm-m32r/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_M32R_SOCKET_H */
diff --git a/include/asm-m68k/socket.h b/include/asm-m68k/socket.h
index a5966ec005ae..6d21b90863ad 100644
--- a/include/asm-m68k/socket.h
+++ b/include/asm-m68k/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-mips/socket.h b/include/asm-mips/socket.h
index 36ebe4e186a7..95945689b1c6 100644
--- a/include/asm-mips/socket.h
+++ b/include/asm-mips/socket.h
@@ -70,6 +70,8 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */
#define SO_SNDBUFFORCE 31
#define SO_RCVBUFFORCE 33
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#ifdef __KERNEL__
diff --git a/include/asm-parisc/socket.h b/include/asm-parisc/socket.h
index ce2eae1708b5..99e868f6a8f5 100644
--- a/include/asm-parisc/socket.h
+++ b/include/asm-parisc/socket.h
@@ -33,6 +33,8 @@
#define SO_PEERCRED 0x4011
#define SO_TIMESTAMP 0x4012
#define SCM_TIMESTAMP SO_TIMESTAMP
+#define SO_TIMESTAMPNS 0x4013
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x4016
diff --git a/include/asm-powerpc/socket.h b/include/asm-powerpc/socket.h
index c8b1da50e72d..403e9fde2eb5 100644
--- a/include/asm-powerpc/socket.h
+++ b/include/asm-powerpc/socket.h
@@ -56,5 +56,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_POWERPC_SOCKET_H */
diff --git a/include/asm-s390/socket.h b/include/asm-s390/socket.h
index 1778a49a74c5..1161ebe3dec9 100644
--- a/include/asm-s390/socket.h
+++ b/include/asm-s390/socket.h
@@ -57,5 +57,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-sh/socket.h b/include/asm-sh/socket.h
index ca70362eb563..c48d6fc9da38 100644
--- a/include/asm-sh/socket.h
+++ b/include/asm-sh/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* __ASM_SH_SOCKET_H */
diff --git a/include/asm-sparc/socket.h b/include/asm-sparc/socket.h
index f6c4e5baf3f7..7c1423997cf0 100644
--- a/include/asm-sparc/socket.h
+++ b/include/asm-sparc/socket.h
@@ -49,6 +49,8 @@
#define SO_PEERSEC 0x001e
#define SO_PASSSEC 0x001f
+#define SO_TIMESTAMPNS 0x0021
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
diff --git a/include/asm-sparc64/socket.h b/include/asm-sparc64/socket.h
index 754d46a50af3..986441dcb8f0 100644
--- a/include/asm-sparc64/socket.h
+++ b/include/asm-sparc64/socket.h
@@ -49,6 +49,8 @@
#define SO_PEERSEC 0x001e
#define SO_PASSSEC 0x001f
+#define SO_TIMESTAMPNS 0x0021
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
diff --git a/include/asm-v850/socket.h b/include/asm-v850/socket.h
index 0dfe55ac2ef2..a4c2493b025f 100644
--- a/include/asm-v850/socket.h
+++ b/include/asm-v850/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* __V850_SOCKET_H__ */
diff --git a/include/asm-x86_64/socket.h b/include/asm-x86_64/socket.h
index b46702607933..90af60cf3c0e 100644
--- a/include/asm-x86_64/socket.h
+++ b/include/asm-x86_64/socket.h
@@ -49,5 +49,7 @@
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-xtensa/socket.h b/include/asm-xtensa/socket.h
index 971d231be60e..1f5aeacb9da2 100644
--- a/include/asm-xtensa/socket.h
+++ b/include/asm-xtensa/socket.h
@@ -60,5 +60,7 @@
#define SO_ACCEPTCONN 30
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _XTENSA_SOCKET_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index 51246579592e..390c04700590 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -390,6 +390,7 @@ enum sock_flags {
SOCK_USE_WRITE_QUEUE, /* whether to call sk->sk_write_space in sock_wfree */
SOCK_DBG, /* %SO_DEBUG setting */
SOCK_RCVTSTAMP, /* %SO_TIMESTAMP setting */
+ SOCK_RCVTSTAMPNS, /* %SO_TIMESTAMPNS setting */
SOCK_LOCALROUTE, /* route locally only, %SO_DONTROUTE setting */
SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */
};
@@ -1283,21 +1284,17 @@ static inline int sock_intr_errno(long timeo)
return timeo == MAX_SCHEDULE_TIMEOUT ? -ERESTARTSYS : -EINTR;
}
+extern void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb);
+
static __inline__ void
sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
{
ktime_t kt = skb->tstamp;
- if (sock_flag(sk, SOCK_RCVTSTAMP)) {
- struct timeval tv;
- /* Race occurred between timestamp enabling and packet
- receiving. Fill in the current time for now. */
- if (kt.tv64 == 0)
- kt = ktime_get_real();
- skb->tstamp = kt;
- tv = ktime_to_timeval(kt);
- put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP, sizeof(tv), &tv);
- } else
+ if (sock_flag(sk, SOCK_RCVTSTAMP))
+ __sock_recv_timestamp(msg, sk, skb);
+ else
sk->sk_stamp = kt;
}
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