From 4cc7f68d65558f683c702d4fe3a5aac4c5227b97 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 4 Feb 2009 16:55:54 -0800 Subject: net: Reexport sock_alloc_send_pskb The function sock_alloc_send_pskb is completely useless if not exported since most of the code in it won't be used as is. In fact, this code has already been duplicated in the tun driver. Now that we need accounting in the tun driver, we can in fact use this function as is. So this patch marks it for export again. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/core/sock.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index f3a0d08cbb48..c64996f8a27a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1254,10 +1254,9 @@ static long sock_wait_for_wmem(struct sock * sk, long timeo) * Generic send/receive buffer handlers */ -static struct sk_buff *sock_alloc_send_pskb(struct sock *sk, - unsigned long header_len, - unsigned long data_len, - int noblock, int *errcode) +struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, + unsigned long data_len, int noblock, + int *errcode) { struct sk_buff *skb; gfp_t gfp_mask; @@ -1337,6 +1336,7 @@ failure: *errcode = err; return NULL; } +EXPORT_SYMBOL(sock_alloc_send_pskb); struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size, int noblock, int *errcode) -- cgit v1.2.3 From 20d4947353be60e909e6b1a79d241457edd6833f Mon Sep 17 00:00:00 2001 From: Patrick Ohly Date: Thu, 12 Feb 2009 05:03:38 +0000 Subject: net: socket infrastructure for SO_TIMESTAMPING The overlap with the old SO_TIMESTAMP[NS] options is handled so that time stamping in software (net_enable_timestamp()) is enabled when SO_TIMESTAMP[NS] and/or SO_TIMESTAMPING_RX_SOFTWARE is set. It's disabled if all of these are off. Signed-off-by: Patrick Ohly Signed-off-by: David S. Miller --- include/net/sock.h | 44 ++++++++++++++++++++++++++-- net/compat.c | 19 +++++++----- net/core/sock.c | 81 ++++++++++++++++++++++++++++++++++++++++++++-------- net/socket.c | 84 +++++++++++++++++++++++++++++++++++++++++------------- 4 files changed, 186 insertions(+), 42 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/net/sock.h b/include/net/sock.h index ded6854e3e4a..cc9d5bcb06f7 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -158,7 +158,7 @@ struct sock_common { * @sk_allocation: allocation mode * @sk_sndbuf: size of send buffer in bytes * @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, - * %SO_OOBINLINE settings + * %SO_OOBINLINE settings, %SO_TIMESTAMPING settings * @sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets * @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO) * @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4) @@ -488,6 +488,13 @@ enum sock_flags { SOCK_RCVTSTAMPNS, /* %SO_TIMESTAMPNS setting */ SOCK_LOCALROUTE, /* route locally only, %SO_DONTROUTE setting */ SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */ + SOCK_TIMESTAMPING_TX_HARDWARE, /* %SOF_TIMESTAMPING_TX_HARDWARE */ + SOCK_TIMESTAMPING_TX_SOFTWARE, /* %SOF_TIMESTAMPING_TX_SOFTWARE */ + SOCK_TIMESTAMPING_RX_HARDWARE, /* %SOF_TIMESTAMPING_RX_HARDWARE */ + SOCK_TIMESTAMPING_RX_SOFTWARE, /* %SOF_TIMESTAMPING_RX_SOFTWARE */ + SOCK_TIMESTAMPING_SOFTWARE, /* %SOF_TIMESTAMPING_SOFTWARE */ + SOCK_TIMESTAMPING_RAW_HARDWARE, /* %SOF_TIMESTAMPING_RAW_HARDWARE */ + SOCK_TIMESTAMPING_SYS_HARDWARE, /* %SOF_TIMESTAMPING_SYS_HARDWARE */ }; static inline void sock_copy_flags(struct sock *nsk, struct sock *osk) @@ -1346,13 +1353,44 @@ static __inline__ void sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) { ktime_t kt = skb->tstamp; + struct skb_shared_hwtstamps *hwtstamps = skb_hwtstamps(skb); - if (sock_flag(sk, SOCK_RCVTSTAMP)) + /* + * generate control messages if + * - receive time stamping in software requested (SOCK_RCVTSTAMP + * or SOCK_TIMESTAMPING_RX_SOFTWARE) + * - software time stamp available and wanted + * (SOCK_TIMESTAMPING_SOFTWARE) + * - hardware time stamps available and wanted + * (SOCK_TIMESTAMPING_SYS_HARDWARE or + * SOCK_TIMESTAMPING_RAW_HARDWARE) + */ + if (sock_flag(sk, SOCK_RCVTSTAMP) || + sock_flag(sk, SOCK_TIMESTAMPING_RX_SOFTWARE) || + (kt.tv64 && sock_flag(sk, SOCK_TIMESTAMPING_SOFTWARE)) || + (hwtstamps->hwtstamp.tv64 && + sock_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE)) || + (hwtstamps->syststamp.tv64 && + sock_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE))) __sock_recv_timestamp(msg, sk, skb); else sk->sk_stamp = kt; } +/** + * sock_tx_timestamp - checks whether the outgoing packet is to be time stamped + * @msg: outgoing packet + * @sk: socket sending this packet + * @shtx: filled with instructions for time stamping + * + * Currently only depends on SOCK_TIMESTAMPING* flags. Returns error code if + * parameters are invalid. + */ +extern int sock_tx_timestamp(struct msghdr *msg, + struct sock *sk, + union skb_shared_tx *shtx); + + /** * sk_eat_skb - Release a skb if it is no longer needed * @sk: socket to eat this skb from @@ -1421,7 +1459,7 @@ static inline struct sock *skb_steal_sock(struct sk_buff *skb) return NULL; } -extern void sock_enable_timestamp(struct sock *sk); +extern void sock_enable_timestamp(struct sock *sk, int flag); extern int sock_get_timestamp(struct sock *, struct timeval __user *); extern int sock_get_timestampns(struct sock *, struct timespec __user *); diff --git a/net/compat.c b/net/compat.c index a3a2ba0fac08..8d739053afe4 100644 --- a/net/compat.c +++ b/net/compat.c @@ -216,7 +216,7 @@ Efault: int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data) { struct compat_timeval ctv; - struct compat_timespec cts; + struct compat_timespec cts[3]; struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; struct compat_cmsghdr cmhdr; int cmlen; @@ -233,12 +233,17 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat data = &ctv; len = sizeof(ctv); } - if (level == SOL_SOCKET && type == SCM_TIMESTAMPNS) { + if (level == SOL_SOCKET && + (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { + int count = type == SCM_TIMESTAMPNS ? 1 : 3; + int i; struct timespec *ts = (struct timespec *)data; - cts.tv_sec = ts->tv_sec; - cts.tv_nsec = ts->tv_nsec; + for (i = 0; i < count; i++) { + cts[i].tv_sec = ts[i].tv_sec; + cts[i].tv_nsec = ts[i].tv_nsec; + } data = &cts; - len = sizeof(cts); + len = sizeof(cts[0]) * count; } cmlen = CMSG_COMPAT_LEN(len); @@ -455,7 +460,7 @@ int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) struct timeval tv; if (!sock_flag(sk, SOCK_TIMESTAMP)) - sock_enable_timestamp(sk); + sock_enable_timestamp(sk, SOCK_TIMESTAMP); tv = ktime_to_timeval(sk->sk_stamp); if (tv.tv_sec == -1) return err; @@ -479,7 +484,7 @@ int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *usersta struct timespec ts; if (!sock_flag(sk, SOCK_TIMESTAMP)) - sock_enable_timestamp(sk); + sock_enable_timestamp(sk, SOCK_TIMESTAMP); ts = ktime_to_timespec(sk->sk_stamp); if (ts.tv_sec == -1) return err; diff --git a/net/core/sock.c b/net/core/sock.c index 4c64be4f8765..40887e76652c 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -120,6 +120,7 @@ #include #include #include +#include #include #include @@ -255,11 +256,14 @@ static void sock_warn_obsolete_bsdism(const char *name) } } -static void sock_disable_timestamp(struct sock *sk) +static void sock_disable_timestamp(struct sock *sk, int flag) { - if (sock_flag(sk, SOCK_TIMESTAMP)) { - sock_reset_flag(sk, SOCK_TIMESTAMP); - net_disable_timestamp(); + if (sock_flag(sk, flag)) { + sock_reset_flag(sk, flag); + if (!sock_flag(sk, SOCK_TIMESTAMP) && + !sock_flag(sk, SOCK_TIMESTAMPING_RX_SOFTWARE)) { + net_disable_timestamp(); + } } } @@ -614,13 +618,38 @@ set_rcvbuf: else sock_set_flag(sk, SOCK_RCVTSTAMPNS); sock_set_flag(sk, SOCK_RCVTSTAMP); - sock_enable_timestamp(sk); + sock_enable_timestamp(sk, SOCK_TIMESTAMP); } else { sock_reset_flag(sk, SOCK_RCVTSTAMP); sock_reset_flag(sk, SOCK_RCVTSTAMPNS); } break; + case SO_TIMESTAMPING: + if (val & ~SOF_TIMESTAMPING_MASK) { + ret = EINVAL; + break; + } + sock_valbool_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE, + val & SOF_TIMESTAMPING_TX_HARDWARE); + sock_valbool_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE, + val & SOF_TIMESTAMPING_TX_SOFTWARE); + sock_valbool_flag(sk, SOCK_TIMESTAMPING_RX_HARDWARE, + val & SOF_TIMESTAMPING_RX_HARDWARE); + if (val & SOF_TIMESTAMPING_RX_SOFTWARE) + sock_enable_timestamp(sk, + SOCK_TIMESTAMPING_RX_SOFTWARE); + else + sock_disable_timestamp(sk, + SOCK_TIMESTAMPING_RX_SOFTWARE); + sock_valbool_flag(sk, SOCK_TIMESTAMPING_SOFTWARE, + val & SOF_TIMESTAMPING_SOFTWARE); + sock_valbool_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE, + val & SOF_TIMESTAMPING_SYS_HARDWARE); + sock_valbool_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE, + val & SOF_TIMESTAMPING_RAW_HARDWARE); + break; + case SO_RCVLOWAT: if (val < 0) val = INT_MAX; @@ -768,6 +797,24 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sock_flag(sk, SOCK_RCVTSTAMPNS); break; + case SO_TIMESTAMPING: + v.val = 0; + if (sock_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE)) + v.val |= SOF_TIMESTAMPING_TX_HARDWARE; + if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE)) + v.val |= SOF_TIMESTAMPING_TX_SOFTWARE; + if (sock_flag(sk, SOCK_TIMESTAMPING_RX_HARDWARE)) + v.val |= SOF_TIMESTAMPING_RX_HARDWARE; + if (sock_flag(sk, SOCK_TIMESTAMPING_RX_SOFTWARE)) + v.val |= SOF_TIMESTAMPING_RX_SOFTWARE; + if (sock_flag(sk, SOCK_TIMESTAMPING_SOFTWARE)) + v.val |= SOF_TIMESTAMPING_SOFTWARE; + if (sock_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE)) + v.val |= SOF_TIMESTAMPING_SYS_HARDWARE; + if (sock_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE)) + v.val |= SOF_TIMESTAMPING_RAW_HARDWARE; + break; + case SO_RCVTIMEO: lv=sizeof(struct timeval); if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) { @@ -969,7 +1016,8 @@ void sk_free(struct sock *sk) rcu_assign_pointer(sk->sk_filter, NULL); } - sock_disable_timestamp(sk); + sock_disable_timestamp(sk, SOCK_TIMESTAMP); + sock_disable_timestamp(sk, SOCK_TIMESTAMPING_RX_SOFTWARE); if (atomic_read(&sk->sk_omem_alloc)) printk(KERN_DEBUG "%s: optmem leakage (%d bytes) detected.\n", @@ -1787,7 +1835,7 @@ int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) { struct timeval tv; if (!sock_flag(sk, SOCK_TIMESTAMP)) - sock_enable_timestamp(sk); + sock_enable_timestamp(sk, SOCK_TIMESTAMP); tv = ktime_to_timeval(sk->sk_stamp); if (tv.tv_sec == -1) return -ENOENT; @@ -1803,7 +1851,7 @@ int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) { struct timespec ts; if (!sock_flag(sk, SOCK_TIMESTAMP)) - sock_enable_timestamp(sk); + sock_enable_timestamp(sk, SOCK_TIMESTAMP); ts = ktime_to_timespec(sk->sk_stamp); if (ts.tv_sec == -1) return -ENOENT; @@ -1815,11 +1863,20 @@ int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) } EXPORT_SYMBOL(sock_get_timestampns); -void sock_enable_timestamp(struct sock *sk) +void sock_enable_timestamp(struct sock *sk, int flag) { - if (!sock_flag(sk, SOCK_TIMESTAMP)) { - sock_set_flag(sk, SOCK_TIMESTAMP); - net_enable_timestamp(); + if (!sock_flag(sk, flag)) { + sock_set_flag(sk, flag); + /* + * we just set one of the two flags which require net + * time stamping, but time stamping might have been on + * already because of the other one + */ + if (!sock_flag(sk, + flag == SOCK_TIMESTAMP ? + SOCK_TIMESTAMPING_RX_SOFTWARE : + SOCK_TIMESTAMP)) + net_enable_timestamp(); } } diff --git a/net/socket.c b/net/socket.c index 35dd7371752a..47a3dc074eb0 100644 --- a/net/socket.c +++ b/net/socket.c @@ -545,6 +545,18 @@ void sock_release(struct socket *sock) sock->file = NULL; } +int sock_tx_timestamp(struct msghdr *msg, struct sock *sk, + union skb_shared_tx *shtx) +{ + shtx->flags = 0; + if (sock_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE)) + shtx->hardware = 1; + if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE)) + shtx->software = 1; + return 0; +} +EXPORT_SYMBOL(sock_tx_timestamp); + static inline int __sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size) { @@ -595,33 +607,65 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg, return result; } +static int ktime2ts(ktime_t kt, struct timespec *ts) +{ + if (kt.tv64) { + *ts = ktime_to_timespec(kt); + return 1; + } else { + return 0; + } +} + /* * called from sock_recv_timestamp() if sock_flag(sk, SOCK_RCVTSTAMP) */ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) { - ktime_t kt = skb->tstamp; - - if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) { - 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, SCM_TIMESTAMP, sizeof(tv), &tv); - } else { - struct timespec ts; - /* 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; - ts = ktime_to_timespec(kt); - put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, sizeof(ts), &ts); + int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP); + struct timespec ts[3]; + int empty = 1; + struct skb_shared_hwtstamps *shhwtstamps = + skb_hwtstamps(skb); + + /* Race occurred between timestamp enabling and packet + receiving. Fill in the current time for now. */ + if (need_software_tstamp && skb->tstamp.tv64 == 0) + __net_timestamp(skb); + + if (need_software_tstamp) { + if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) { + struct timeval tv; + skb_get_timestamp(skb, &tv); + put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, + sizeof(tv), &tv); + } else { + struct timespec ts; + skb_get_timestampns(skb, &ts); + put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, + sizeof(ts), &ts); + } + } + + + memset(ts, 0, sizeof(ts)); + if (skb->tstamp.tv64 && + sock_flag(sk, SOCK_TIMESTAMPING_SOFTWARE)) { + skb_get_timestampns(skb, ts + 0); + empty = 0; + } + if (shhwtstamps) { + if (sock_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE) && + ktime2ts(shhwtstamps->syststamp, ts + 1)) + empty = 0; + if (sock_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE) && + ktime2ts(shhwtstamps->hwtstamp, ts + 2)) + empty = 0; } + if (!empty) + put_cmsg(msg, SOL_SOCKET, + SCM_TIMESTAMPING, sizeof(ts), &ts); } EXPORT_SYMBOL_GPL(__sock_recv_timestamp); -- cgit v1.2.3 From cbd151bfc7b619b59c44c3697e901cb7152f418e Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Thu, 26 Feb 2009 23:43:19 -0800 Subject: RDS: Add RDS to AF key strings Signed-off-by: Andy Grover Signed-off-by: David S. Miller --- net/core/sock.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index 8ee734ea5229..0620046e4eba 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -150,7 +150,7 @@ static const char *af_family_key_strings[AF_MAX+1] = { "sk_lock-AF_DECnet", "sk_lock-AF_NETBEUI" , "sk_lock-AF_SECURITY" , "sk_lock-AF_KEY" , "sk_lock-AF_NETLINK" , "sk_lock-AF_PACKET" , "sk_lock-AF_ASH" , "sk_lock-AF_ECONET" , "sk_lock-AF_ATMSVC" , - "sk_lock-21" , "sk_lock-AF_SNA" , "sk_lock-AF_IRDA" , + "sk_lock-AF_RDS" , "sk_lock-AF_SNA" , "sk_lock-AF_IRDA" , "sk_lock-AF_PPPOX" , "sk_lock-AF_WANPIPE" , "sk_lock-AF_LLC" , "sk_lock-27" , "sk_lock-28" , "sk_lock-AF_CAN" , "sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV" , @@ -165,7 +165,7 @@ static const char *af_family_slock_key_strings[AF_MAX+1] = { "slock-AF_DECnet", "slock-AF_NETBEUI" , "slock-AF_SECURITY" , "slock-AF_KEY" , "slock-AF_NETLINK" , "slock-AF_PACKET" , "slock-AF_ASH" , "slock-AF_ECONET" , "slock-AF_ATMSVC" , - "slock-21" , "slock-AF_SNA" , "slock-AF_IRDA" , + "slock-AF_RDS" , "slock-AF_SNA" , "slock-AF_IRDA" , "slock-AF_PPPOX" , "slock-AF_WANPIPE" , "slock-AF_LLC" , "slock-27" , "slock-28" , "slock-AF_CAN" , "slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" , @@ -180,7 +180,7 @@ static const char *af_family_clock_key_strings[AF_MAX+1] = { "clock-AF_DECnet", "clock-AF_NETBEUI" , "clock-AF_SECURITY" , "clock-AF_KEY" , "clock-AF_NETLINK" , "clock-AF_PACKET" , "clock-AF_ASH" , "clock-AF_ECONET" , "clock-AF_ATMSVC" , - "clock-21" , "clock-AF_SNA" , "clock-AF_IRDA" , + "clock-AF_RDS" , "clock-AF_SNA" , "clock-AF_IRDA" , "clock-AF_PPPOX" , "clock-AF_WANPIPE" , "clock-AF_LLC" , "clock-27" , "clock-28" , "clock-AF_CAN" , "clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_IUCV" , -- cgit v1.2.3