From 92f37fd2ee805aa77925c1e64fd56088b46094fc Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 25 Mar 2007 22:14:49 -0700 Subject: [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 CC: linux-arch@vger.kernel.org Signed-off-by: David S. Miller --- include/asm-alpha/socket.h | 2 ++ include/asm-arm/socket.h | 2 ++ include/asm-arm26/socket.h | 2 ++ include/asm-avr32/socket.h | 2 ++ include/asm-cris/socket.h | 2 ++ include/asm-frv/socket.h | 2 ++ include/asm-h8300/socket.h | 2 ++ include/asm-i386/socket.h | 2 ++ include/asm-ia64/socket.h | 2 ++ include/asm-m32r/socket.h | 2 ++ include/asm-m68k/socket.h | 2 ++ include/asm-mips/socket.h | 2 ++ include/asm-parisc/socket.h | 2 ++ include/asm-powerpc/socket.h | 2 ++ include/asm-s390/socket.h | 2 ++ include/asm-sh/socket.h | 2 ++ include/asm-sparc/socket.h | 2 ++ include/asm-sparc64/socket.h | 2 ++ include/asm-v850/socket.h | 2 ++ include/asm-x86_64/socket.h | 2 ++ include/asm-xtensa/socket.h | 2 ++ include/net/sock.h | 17 +++++++---------- 22 files changed, 49 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/asm-alpha/socket.h b/include/asm-alpha/socket.h index d22ab97ea72..1fede7f9286 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 19f7df702b0..65a1a64bf93 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 19f7df702b0..65a1a64bf93 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 543229de817..a0d0507a503 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 01cfdf1d6d3..5b18dfdf174 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 31db18fc871..a823befd11d 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 ebc830fee0d..39911d8c968 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 5755d57c4e9..99ca648b94c 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 d638ef3d50c..9e42ce43cfb 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 acdf748fcdc..793d5d30c85 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 a5966ec005a..6d21b90863a 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 36ebe4e186a..95945689b1c 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 ce2eae1708b..99e868f6a8f 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 c8b1da50e72..403e9fde2eb 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 1778a49a74c..1161ebe3dec 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 ca70362eb56..c48d6fc9da3 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 f6c4e5baf3f..7c1423997cf 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 754d46a50af..986441dcb8f 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 0dfe55ac2ef..a4c2493b025 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 b4670260793..90af60cf3c0 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 971d231be60..1f5aeacb9da 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 51246579592..390c0470059 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; } -- cgit v1.2.3