The series introduces new socket timestamps that are y2038 safe.
The time data types used for the existing socket timestamp options: SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING are not y2038 safe. The series introduces SO_TIMESTAMP_NEW, SO_TIMESTAMPNS_NEW and SO_TIMESTAMPING_NEW to replace these. These new timestamps can be used on all architectures.
The alternative considered was to extend the sys_setsockopt() by using the flags. We did not receive any strong opinions about either of the approaches. Hence, this was chosen, as glibc folks preferred this.
The series does not deal with updating the internal kernel socket calls like rxrpc to make them y2038 safe. This will be dealt with separately.
Note that the timestamps behavior already does not match the man page specific behavior: SIOCGSTAMP This ioctl should only be used if the socket option SO_TIMESTAMP is not set on the socket. Otherwise, it returns the timestamp of the last packet that was received while SO_TIMESTAMP was not set, or it fails if no such packet has been received, (i.e., ioctl(2) returns -1 with errno set to ENOENT). The recommendation is to update the man page to remove the above statement.
The overview of the series is as below: 1. Delete asm specific socket.h when possible. 2. Support SO/SCM_TIMESTAMP* options only in userspace. 3. Rename current SO/SCM_TIMESTAMP* to SO/SCM_TIMESTAMP*_OLD. 3. Alter socket options so that SOCK_RCVTSTAMPNS does not rely on SOCK_RCVTSTAMP. 4. Introduce y2038 safe types for socket timestamp. 5. Introduce new y2038 safe socket options SO/SCM_TIMESTAMP*_NEW.
Changes since v2: * Removed extra functions to reduce diff churn as per code review
Changes since v1: * Dropped the change to disentangle sock flags * Renamed sock_timeval to __kernel_sock_timeval * Updated a few comments * Added documentation changes
Deepa Dinamani (8): arch: Use asm-generic/socket.h when possible sockopt: Rename SO_TIMESTAMP* to SO_TIMESTAMP*_OLD arch: sparc: Override struct __kernel_old_timeval socket: Use old_timeval types for socket timestamps socket: Add struct __kernel_sock_timeval socket: Add SO_TIMESTAMP[NS]_NEW socket: Add SO_TIMESTAMPING_NEW socket: Update timestamping Documentation
Documentation/networking/timestamping.txt | 43 +++++++- arch/alpha/include/uapi/asm/socket.h | 35 +++++-- arch/ia64/include/uapi/asm/Kbuild | 1 + arch/ia64/include/uapi/asm/socket.h | 120 --------------------- arch/mips/include/uapi/asm/socket.h | 34 ++++-- arch/parisc/include/uapi/asm/socket.h | 34 ++++-- arch/s390/include/uapi/asm/Kbuild | 1 + arch/s390/include/uapi/asm/socket.h | 117 --------------------- arch/sparc/include/uapi/asm/posix_types.h | 10 ++ arch/sparc/include/uapi/asm/socket.h | 36 +++++-- arch/x86/include/uapi/asm/Kbuild | 1 + arch/x86/include/uapi/asm/socket.h | 1 - arch/xtensa/include/asm/Kbuild | 1 + arch/xtensa/include/uapi/asm/Kbuild | 1 + arch/xtensa/include/uapi/asm/socket.h | 122 ---------------------- drivers/isdn/mISDN/socket.c | 2 +- include/linux/skbuff.h | 24 ++++- include/linux/socket.h | 8 ++ include/net/sock.h | 1 + include/uapi/asm-generic/socket.h | 35 +++++-- include/uapi/linux/errqueue.h | 4 + include/uapi/linux/time.h | 7 ++ net/bluetooth/hci_sock.c | 4 +- net/compat.c | 14 +-- net/core/scm.c | 27 +++++ net/core/sock.c | 43 ++++++-- net/ipv4/tcp.c | 61 +++++++---- net/rds/af_rds.c | 10 +- net/rds/recv.c | 18 +++- net/rxrpc/local_object.c | 2 +- net/smc/af_smc.c | 3 +- net/socket.c | 50 ++++++--- 32 files changed, 404 insertions(+), 466 deletions(-) delete mode 100644 arch/ia64/include/uapi/asm/socket.h delete mode 100644 arch/s390/include/uapi/asm/socket.h delete mode 100644 arch/x86/include/uapi/asm/socket.h delete mode 100644 arch/xtensa/include/uapi/asm/socket.h
base-commit: a4983672f9ca4c8393f26b6b80710e6c78886b8c
Many architectures maintain an arch specific copy of the file even though there are no differences with the asm-generic one. Allow these architectures to use the generic one instead.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: chris@zankel.net Cc: fenghua.yu@intel.com Cc: tglx@linutronix.de Cc: schwidefsky@de.ibm.com Cc: linux-ia64@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-s390@vger.kernel.org --- arch/ia64/include/uapi/asm/Kbuild | 1 + arch/ia64/include/uapi/asm/socket.h | 120 ------------------------- arch/s390/include/uapi/asm/Kbuild | 1 + arch/s390/include/uapi/asm/socket.h | 117 ------------------------ arch/x86/include/uapi/asm/Kbuild | 1 + arch/x86/include/uapi/asm/socket.h | 1 - arch/xtensa/include/asm/Kbuild | 1 + arch/xtensa/include/uapi/asm/Kbuild | 1 + arch/xtensa/include/uapi/asm/socket.h | 122 -------------------------- 9 files changed, 5 insertions(+), 360 deletions(-) delete mode 100644 arch/ia64/include/uapi/asm/socket.h delete mode 100644 arch/s390/include/uapi/asm/socket.h delete mode 100644 arch/x86/include/uapi/asm/socket.h delete mode 100644 arch/xtensa/include/uapi/asm/socket.h
diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild index ccce0ea65e05..37ea5ec1b94d 100644 --- a/arch/ia64/include/uapi/asm/Kbuild +++ b/arch/ia64/include/uapi/asm/Kbuild @@ -9,3 +9,4 @@ generic-y += msgbuf.h generic-y += poll.h generic-y += sembuf.h generic-y += shmbuf.h +generic-y += socket.h diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h deleted file mode 100644 index c872c4e6bafb..000000000000 --- a/arch/ia64/include/uapi/asm/socket.h +++ /dev/null @@ -1,120 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_IA64_SOCKET_H -#define _ASM_IA64_SOCKET_H - -/* - * Socket related defines. - * - * Based on <asm-i386/socket.h>. - * - * Modified 1998-2000 - * David Mosberger-Tang davidm@hpl.hp.com, Hewlett-Packard Co - */ - -#include <asm/sockios.h> - -/* For setsockopt(2) */ -#define SOL_SOCKET 1 - -#define SO_DEBUG 1 -#define SO_REUSEADDR 2 -#define SO_TYPE 3 -#define SO_ERROR 4 -#define SO_DONTROUTE 5 -#define SO_BROADCAST 6 -#define SO_SNDBUF 7 -#define SO_RCVBUF 8 -#define SO_SNDBUFFORCE 32 -#define SO_RCVBUFFORCE 33 -#define SO_KEEPALIVE 9 -#define SO_OOBINLINE 10 -#define SO_NO_CHECK 11 -#define SO_PRIORITY 12 -#define SO_LINGER 13 -#define SO_BSDCOMPAT 14 -#define SO_REUSEPORT 15 -#define SO_PASSCRED 16 -#define SO_PEERCRED 17 -#define SO_RCVLOWAT 18 -#define SO_SNDLOWAT 19 -#define SO_RCVTIMEO 20 -#define SO_SNDTIMEO 21 - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 22 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -#define SO_SECURITY_ENCRYPTION_NETWORK 24 - -#define SO_BINDTODEVICE 25 - -/* Socket filtering */ -#define SO_ATTACH_FILTER 26 -#define SO_DETACH_FILTER 27 -#define SO_GET_FILTER SO_ATTACH_FILTER - -#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_ACCEPTCONN 30 - -#define SO_PEERSEC 31 -#define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -#define SO_MARK 36 - -#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - -#define SO_PROTOCOL 38 -#define SO_DOMAIN 39 - -#define SO_RXQ_OVFL 40 - -#define SO_WIFI_STATUS 41 -#define SCM_WIFI_STATUS SO_WIFI_STATUS -#define SO_PEEK_OFF 42 - -/* Instruct lower device to use last 4-bytes of skb data as FCS */ -#define SO_NOFCS 43 - -#define SO_LOCK_FILTER 44 - -#define SO_SELECT_ERR_QUEUE 45 - -#define SO_BUSY_POLL 46 - -#define SO_MAX_PACING_RATE 47 - -#define SO_BPF_EXTENSIONS 48 - -#define SO_INCOMING_CPU 49 - -#define SO_ATTACH_BPF 50 -#define SO_DETACH_BPF SO_DETACH_FILTER - -#define SO_ATTACH_REUSEPORT_CBPF 51 -#define SO_ATTACH_REUSEPORT_EBPF 52 - -#define SO_CNX_ADVICE 53 - -#define SCM_TIMESTAMPING_OPT_STATS 54 - -#define SO_MEMINFO 55 - -#define SO_INCOMING_NAPI_ID 56 - -#define SO_COOKIE 57 - -#define SCM_TIMESTAMPING_PKTINFO 58 - -#define SO_PEERGROUPS 59 - -#define SO_ZEROCOPY 60 - -#define SO_TXTIME 61 -#define SCM_TXTIME SO_TXTIME - -#endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild index dc38a90cf091..15bb61228b74 100644 --- a/arch/s390/include/uapi/asm/Kbuild +++ b/arch/s390/include/uapi/asm/Kbuild @@ -15,6 +15,7 @@ generic-y += poll.h generic-y += resource.h generic-y += sembuf.h generic-y += shmbuf.h +generic-y += socket.h generic-y += sockios.h generic-y += swab.h generic-y += termbits.h diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h deleted file mode 100644 index 39d901476ee5..000000000000 --- a/arch/s390/include/uapi/asm/socket.h +++ /dev/null @@ -1,117 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * S390 version - * - * Derived from "include/asm-i386/socket.h" - */ - -#ifndef _ASM_SOCKET_H -#define _ASM_SOCKET_H - -#include <asm/sockios.h> - -/* For setsockopt(2) */ -#define SOL_SOCKET 1 - -#define SO_DEBUG 1 -#define SO_REUSEADDR 2 -#define SO_TYPE 3 -#define SO_ERROR 4 -#define SO_DONTROUTE 5 -#define SO_BROADCAST 6 -#define SO_SNDBUF 7 -#define SO_RCVBUF 8 -#define SO_SNDBUFFORCE 32 -#define SO_RCVBUFFORCE 33 -#define SO_KEEPALIVE 9 -#define SO_OOBINLINE 10 -#define SO_NO_CHECK 11 -#define SO_PRIORITY 12 -#define SO_LINGER 13 -#define SO_BSDCOMPAT 14 -#define SO_REUSEPORT 15 -#define SO_PASSCRED 16 -#define SO_PEERCRED 17 -#define SO_RCVLOWAT 18 -#define SO_SNDLOWAT 19 -#define SO_RCVTIMEO 20 -#define SO_SNDTIMEO 21 - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 22 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -#define SO_SECURITY_ENCRYPTION_NETWORK 24 - -#define SO_BINDTODEVICE 25 - -/* Socket filtering */ -#define SO_ATTACH_FILTER 26 -#define SO_DETACH_FILTER 27 -#define SO_GET_FILTER SO_ATTACH_FILTER - -#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_ACCEPTCONN 30 - -#define SO_PEERSEC 31 -#define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -#define SO_MARK 36 - -#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - -#define SO_PROTOCOL 38 -#define SO_DOMAIN 39 - -#define SO_RXQ_OVFL 40 - -#define SO_WIFI_STATUS 41 -#define SCM_WIFI_STATUS SO_WIFI_STATUS -#define SO_PEEK_OFF 42 - -/* Instruct lower device to use last 4-bytes of skb data as FCS */ -#define SO_NOFCS 43 - -#define SO_LOCK_FILTER 44 - -#define SO_SELECT_ERR_QUEUE 45 - -#define SO_BUSY_POLL 46 - -#define SO_MAX_PACING_RATE 47 - -#define SO_BPF_EXTENSIONS 48 - -#define SO_INCOMING_CPU 49 - -#define SO_ATTACH_BPF 50 -#define SO_DETACH_BPF SO_DETACH_FILTER - -#define SO_ATTACH_REUSEPORT_CBPF 51 -#define SO_ATTACH_REUSEPORT_EBPF 52 - -#define SO_CNX_ADVICE 53 - -#define SCM_TIMESTAMPING_OPT_STATS 54 - -#define SO_MEMINFO 55 - -#define SO_INCOMING_NAPI_ID 56 - -#define SO_COOKIE 57 - -#define SCM_TIMESTAMPING_PKTINFO 58 - -#define SO_PEERGROUPS 59 - -#define SO_ZEROCOPY 60 - -#define SO_TXTIME 61 -#define SCM_TXTIME SO_TXTIME - -#endif /* _ASM_SOCKET_H */ diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild index 322681622d1e..a400e71a13ce 100644 --- a/arch/x86/include/uapi/asm/Kbuild +++ b/arch/x86/include/uapi/asm/Kbuild @@ -6,3 +6,4 @@ generated-y += unistd_32.h generated-y += unistd_64.h generated-y += unistd_x32.h generic-y += poll.h +generic-y += socket.h diff --git a/arch/x86/include/uapi/asm/socket.h b/arch/x86/include/uapi/asm/socket.h deleted file mode 100644 index 6b71384b9d8b..000000000000 --- a/arch/x86/include/uapi/asm/socket.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/socket.h> diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild index e255683cd520..809f39ce08c0 100644 --- a/arch/xtensa/include/asm/Kbuild +++ b/arch/xtensa/include/asm/Kbuild @@ -25,6 +25,7 @@ generic-y += percpu.h generic-y += preempt.h generic-y += rwsem.h generic-y += sections.h +generic-y += socket.h generic-y += topology.h generic-y += trace_clock.h generic-y += vga.h diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild index f95cad300369..fc2680dace55 100644 --- a/arch/xtensa/include/uapi/asm/Kbuild +++ b/arch/xtensa/include/uapi/asm/Kbuild @@ -10,5 +10,6 @@ generic-y += ioctl.h generic-y += kvm_para.h generic-y += resource.h generic-y += siginfo.h +generic-y += socket.h generic-y += statfs.h generic-y += termios.h diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h deleted file mode 100644 index 1de07a7f7680..000000000000 --- a/arch/xtensa/include/uapi/asm/socket.h +++ /dev/null @@ -1,122 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * include/asm-xtensa/socket.h - * - * Copied from i386. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _XTENSA_SOCKET_H -#define _XTENSA_SOCKET_H - -#include <asm/sockios.h> - -/* For setsockoptions(2) */ -#define SOL_SOCKET 1 - -#define SO_DEBUG 1 -#define SO_REUSEADDR 2 -#define SO_TYPE 3 -#define SO_ERROR 4 -#define SO_DONTROUTE 5 -#define SO_BROADCAST 6 -#define SO_SNDBUF 7 -#define SO_RCVBUF 8 -#define SO_SNDBUFFORCE 32 -#define SO_RCVBUFFORCE 33 -#define SO_KEEPALIVE 9 -#define SO_OOBINLINE 10 -#define SO_NO_CHECK 11 -#define SO_PRIORITY 12 -#define SO_LINGER 13 -#define SO_BSDCOMPAT 14 -#define SO_REUSEPORT 15 -#define SO_PASSCRED 16 -#define SO_PEERCRED 17 -#define SO_RCVLOWAT 18 -#define SO_SNDLOWAT 19 -#define SO_RCVTIMEO 20 -#define SO_SNDTIMEO 21 - -/* Security levels - as per NRL IPv6 - don't actually do anything */ - -#define SO_SECURITY_AUTHENTICATION 22 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -#define SO_SECURITY_ENCRYPTION_NETWORK 24 - -#define SO_BINDTODEVICE 25 - -/* Socket filtering */ - -#define SO_ATTACH_FILTER 26 -#define SO_DETACH_FILTER 27 -#define SO_GET_FILTER SO_ATTACH_FILTER - -#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_ACCEPTCONN 30 -#define SO_PEERSEC 31 -#define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -#define SO_MARK 36 - -#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - -#define SO_PROTOCOL 38 -#define SO_DOMAIN 39 - -#define SO_RXQ_OVFL 40 - -#define SO_WIFI_STATUS 41 -#define SCM_WIFI_STATUS SO_WIFI_STATUS -#define SO_PEEK_OFF 42 - -/* Instruct lower device to use last 4-bytes of skb data as FCS */ -#define SO_NOFCS 43 - -#define SO_LOCK_FILTER 44 - -#define SO_SELECT_ERR_QUEUE 45 - -#define SO_BUSY_POLL 46 - -#define SO_MAX_PACING_RATE 47 - -#define SO_BPF_EXTENSIONS 48 - -#define SO_INCOMING_CPU 49 - -#define SO_ATTACH_BPF 50 -#define SO_DETACH_BPF SO_DETACH_FILTER - -#define SO_ATTACH_REUSEPORT_CBPF 51 -#define SO_ATTACH_REUSEPORT_EBPF 52 - -#define SO_CNX_ADVICE 53 - -#define SCM_TIMESTAMPING_OPT_STATS 54 - -#define SO_MEMINFO 55 - -#define SO_INCOMING_NAPI_ID 56 - -#define SO_COOKIE 57 - -#define SCM_TIMESTAMPING_PKTINFO 58 - -#define SO_PEERGROUPS 59 - -#define SO_ZEROCOPY 60 - -#define SO_TXTIME 61 -#define SCM_TXTIME SO_TXTIME - -#endif /* _XTENSA_SOCKET_H */
SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING options, the way they are currently defined, are not y2038 safe. Subsequent patches in the series add new y2038 safe versions of these options which provide 64 bit timestamps on all architectures uniformly. Hence, rename existing options with OLD tag suffixes.
Also note that kernel will not use the untagged SO_TIMESTAMP* and SCM_TIMESTAMP* options internally anymore.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: deller@gmx.de Cc: dhowells@redhat.com Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-afs@lists.infradead.org Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: sparclinux@vger.kernel.org --- arch/alpha/include/uapi/asm/socket.h | 23 ++++++++++++++++------- arch/mips/include/uapi/asm/socket.h | 23 ++++++++++++++++------- arch/parisc/include/uapi/asm/socket.h | 23 ++++++++++++++++------- arch/sparc/include/uapi/asm/socket.h | 24 ++++++++++++++++-------- include/uapi/asm-generic/socket.h | 23 ++++++++++++++++------- net/compat.c | 6 +++--- net/core/sock.c | 16 ++++++++-------- net/ipv4/tcp.c | 6 +++--- net/rds/af_rds.c | 2 +- net/rds/recv.c | 2 +- net/rxrpc/local_object.c | 2 +- net/socket.c | 8 ++++---- 12 files changed, 101 insertions(+), 57 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 065fb372e355..00e45c80e574 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -51,13 +51,9 @@ #define SO_GET_FILTER SO_ATTACH_FILTER
#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP
#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 @@ -66,9 +62,6 @@
#define SO_MARK 36
-#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - #define SO_RXQ_OVFL 40
#define SO_WIFI_STATUS 41 @@ -115,4 +108,20 @@ #define SO_TXTIME 61 #define SCM_TXTIME SO_TXTIME
+#define SO_TIMESTAMP_OLD 29 +#define SO_TIMESTAMPNS_OLD 35 +#define SO_TIMESTAMPING_OLD 37 + +#if !defined(__KERNEL__) + +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SCM_TIMESTAMP SO_TIMESTAMP +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS +#define SCM_TIMESTAMPING SO_TIMESTAMPING + +#endif + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index 71370fb3ceef..b9553f770346 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -65,21 +65,14 @@ #define SO_GET_FILTER SO_ATTACH_FILTER
#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP
#define SO_PEERSEC 30 #define SO_SNDBUFFORCE 31 #define SO_RCVBUFFORCE 33 #define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#define SO_MARK 36
-#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - #define SO_RXQ_OVFL 40
#define SO_WIFI_STATUS 41 @@ -126,4 +119,20 @@ #define SO_TXTIME 61 #define SCM_TXTIME SO_TXTIME
+#define SO_TIMESTAMP_OLD 29 +#define SO_TIMESTAMPNS_OLD 35 +#define SO_TIMESTAMPING_OLD 37 + +#if !defined(__KERNEL__) + +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SCM_TIMESTAMP SO_TIMESTAMP +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS +#define SCM_TIMESTAMPING SO_TIMESTAMPING + +#endif + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index 061b9cf2a779..37cdfe64bb27 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -34,10 +34,6 @@ #define SO_BSDCOMPAT 0x400e #define SO_PASSCRED 0x4010 #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 @@ -58,9 +54,6 @@
#define SO_MARK 0x401f
-#define SO_TIMESTAMPING 0x4020 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - #define SO_RXQ_OVFL 0x4021
#define SO_WIFI_STATUS 0x4022 @@ -107,4 +100,20 @@ #define SO_TXTIME 0x4036 #define SCM_TXTIME SO_TXTIME
+#define SO_TIMESTAMP_OLD 0x4012 +#define SO_TIMESTAMPNS_OLD 0x4013 +#define SO_TIMESTAMPING_OLD 0x4020 + +#if !defined(__KERNEL__) + +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SCM_TIMESTAMP SO_TIMESTAMP +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS +#define SCM_TIMESTAMPING SO_TIMESTAMPING + +#endif + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index 7ea35e5601b6..ca573641fc6c 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -33,7 +33,6 @@ #define SO_PROTOCOL 0x1028 #define SO_DOMAIN 0x1029
- /* Linux specific, keep the same. */ #define SO_NO_CHECK 0x000b #define SO_PRIORITY 0x000c @@ -45,19 +44,12 @@ #define SO_GET_FILTER SO_ATTACH_FILTER
#define SO_PEERNAME 0x001c -#define SO_TIMESTAMP 0x001d -#define SCM_TIMESTAMP SO_TIMESTAMP
#define SO_PEERSEC 0x001e #define SO_PASSSEC 0x001f -#define SO_TIMESTAMPNS 0x0021 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#define SO_MARK 0x0022
-#define SO_TIMESTAMPING 0x0023 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - #define SO_RXQ_OVFL 0x0024
#define SO_WIFI_STATUS 0x0025 @@ -109,4 +101,20 @@ #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 #define SO_SECURITY_ENCRYPTION_NETWORK 0x5004
+#define SO_TIMESTAMP_OLD 0x001d +#define SO_TIMESTAMPNS_OLD 0x0021 +#define SO_TIMESTAMPING_OLD 0x0023 + +#if !defined(__KERNEL__) + +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SCM_TIMESTAMP SO_TIMESTAMP +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS +#define SCM_TIMESTAMPING SO_TIMESTAMPING + +#endif + #endif /* _ASM_SOCKET_H */ diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index a12692e5f7a8..dc704e41203d 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -46,21 +46,14 @@ #define SO_GET_FILTER SO_ATTACH_FILTER
#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP
#define SO_ACCEPTCONN 30
#define SO_PEERSEC 31 #define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#define SO_MARK 36
-#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - #define SO_PROTOCOL 38 #define SO_DOMAIN 39
@@ -110,4 +103,20 @@ #define SO_TXTIME 61 #define SCM_TXTIME SO_TXTIME
+#define SO_TIMESTAMP_OLD 29 +#define SO_TIMESTAMPNS_OLD 35 +#define SO_TIMESTAMPING_OLD 37 + +#if !defined(__KERNEL__) + +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SCM_TIMESTAMP SO_TIMESTAMP +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS +#define SCM_TIMESTAMPING SO_TIMESTAMPING + +#endif + #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/compat.c b/net/compat.c index c3a2f868e8af..ad24c1c0f0a1 100644 --- a/net/compat.c +++ b/net/compat.c @@ -219,7 +219,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat }
if (!COMPAT_USE_64BIT_TIME) { - if (level == SOL_SOCKET && type == SCM_TIMESTAMP) { + if (level == SOL_SOCKET && type == SO_TIMESTAMP_OLD) { struct timeval *tv = (struct timeval *)data; ctv.tv_sec = tv->tv_sec; ctv.tv_usec = tv->tv_usec; @@ -227,8 +227,8 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat len = sizeof(ctv); } if (level == SOL_SOCKET && - (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { - int count = type == SCM_TIMESTAMPNS ? 1 : 3; + (type == SO_TIMESTAMPNS_OLD || type == SO_TIMESTAMPING_OLD)) { + int count = type == SO_TIMESTAMPNS_OLD ? 1 : 3; int i; struct timespec *ts = (struct timespec *)data; for (i = 0; i < count; i++) { diff --git a/net/core/sock.c b/net/core/sock.c index 6aa2e7e0b4fb..492a8407130a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -815,10 +815,10 @@ int sock_setsockopt(struct socket *sock, int level, int optname, clear_bit(SOCK_PASSCRED, &sock->flags); break;
- case SO_TIMESTAMP: - case SO_TIMESTAMPNS: + case SO_TIMESTAMP_OLD: + case SO_TIMESTAMPNS_OLD: if (valbool) { - if (optname == SO_TIMESTAMP) + if (optname == SO_TIMESTAMP_OLD) sock_reset_flag(sk, SOCK_RCVTSTAMPNS); else sock_set_flag(sk, SOCK_RCVTSTAMPNS); @@ -830,7 +830,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, } break;
- case SO_TIMESTAMPING: + case SO_TIMESTAMPING_OLD: if (val & ~SOF_TIMESTAMPING_MASK) { ret = -EINVAL; break; @@ -1186,16 +1186,16 @@ int sock_getsockopt(struct socket *sock, int level, int optname, sock_warn_obsolete_bsdism("getsockopt"); break;
- case SO_TIMESTAMP: + case SO_TIMESTAMP_OLD: v.val = sock_flag(sk, SOCK_RCVTSTAMP) && !sock_flag(sk, SOCK_RCVTSTAMPNS); break;
- case SO_TIMESTAMPNS: + case SO_TIMESTAMPNS_OLD: v.val = sock_flag(sk, SOCK_RCVTSTAMPNS); break;
- case SO_TIMESTAMPING: + case SO_TIMESTAMPING_OLD: v.val = sk->sk_tsflags; break;
@@ -2122,7 +2122,7 @@ int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg, return -EINVAL; sockc->mark = *(u32 *)CMSG_DATA(cmsg); break; - case SO_TIMESTAMPING: + case SO_TIMESTAMPING_OLD: if (cmsg->cmsg_len != CMSG_LEN(sizeof(u32))) return -EINVAL;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 27e2f6837062..95eebe94ecf0 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1870,13 +1870,13 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) { if (sock_flag(sk, SOCK_RCVTSTAMP)) { if (sock_flag(sk, SOCK_RCVTSTAMPNS)) { - put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, sizeof(tss->ts[0]), &tss->ts[0]); } else { tv.tv_sec = tss->ts[0].tv_sec; tv.tv_usec = tss->ts[0].tv_nsec / 1000;
- put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, sizeof(tv), &tv); } } @@ -1896,7 +1896,7 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
if (has_timestamping) { tss->ts[1] = (struct timespec) {0}; - put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPING, + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_OLD, sizeof(*tss), tss); } } diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index 65387e1e6964..eeb4639adbe5 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -430,7 +430,7 @@ static int rds_setsockopt(struct socket *sock, int level, int optname, ret = rds_set_transport(rs, optval, optlen); release_sock(sock->sk); break; - case SO_TIMESTAMP: + case SO_TIMESTAMP_OLD: lock_sock(sock->sk); ret = rds_enable_recvtstamp(sock->sk, optval, optlen); release_sock(sock->sk); diff --git a/net/rds/recv.c b/net/rds/recv.c index 727639dac8a7..04e30d63a159 100644 --- a/net/rds/recv.c +++ b/net/rds/recv.c @@ -550,7 +550,7 @@ static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg, if ((inc->i_rx_tstamp != 0) && sock_flag(rds_rs_to_sk(rs), SOCK_RCVTSTAMP)) { struct timeval tv = ktime_to_timeval(inc->i_rx_tstamp); - ret = put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, + ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, sizeof(tv), &tv); if (ret) goto out; diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 0906e51d3cfb..15cf42d5b53a 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -202,7 +202,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
/* We want receive timestamps. */ opt = 1; - ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS, + ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS_OLD, (char *)&opt, sizeof(opt)); if (ret < 0) { _debug("setsockopt failed"); diff --git a/net/socket.c b/net/socket.c index e89884e2197b..5087f9e40f3a 100644 --- a/net/socket.c +++ b/net/socket.c @@ -669,7 +669,7 @@ static bool skb_is_err_queue(const struct sk_buff *skb) * before the software timestamp is received, a hardware TX timestamp may be * returned only if there is no software TX timestamp. Ignore false software * timestamps, which may be made in the __sock_recv_timestamp() call when the - * option SO_TIMESTAMP(NS) is enabled on the socket, even when the skb has a + * option SO_TIMESTAMP_OLD(NS) is enabled on the socket, even when the skb has a * hardware timestamp. */ static bool skb_is_swtx_tstamp(const struct sk_buff *skb, int false_tstamp) @@ -721,12 +721,12 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) { struct timeval tv; skb_get_timestamp(skb, &tv); - put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, sizeof(tv), &tv); } else { struct timespec ts; skb_get_timestampns(skb, &ts); - put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, sizeof(ts), &ts); } } @@ -746,7 +746,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, } if (!empty) { put_cmsg(msg, SOL_SOCKET, - SCM_TIMESTAMPING, sizeof(tss), &tss); + SO_TIMESTAMPING_OLD, sizeof(tss), &tss);
if (skb_is_err_queue(skb) && skb->len && SKB_EXT_ERR(skb)->opt_stats)
struct __kernel_old_timeval is supposed to have the same layout as struct timeval. But, it was inadvarently missed that __kernel_suseconds has a different definition for sparc64. Provide an asm-specific override that fixes it.
Reported-by: Arnd Bergmann arnd@arndb.de Suggested-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: sparclinux@vger.kernel.org --- arch/sparc/include/uapi/asm/posix_types.h | 10 ++++++++++ include/uapi/linux/time.h | 2 ++ 2 files changed, 12 insertions(+)
diff --git a/arch/sparc/include/uapi/asm/posix_types.h b/arch/sparc/include/uapi/asm/posix_types.h index fec499d6efb7..f139e0048628 100644 --- a/arch/sparc/include/uapi/asm/posix_types.h +++ b/arch/sparc/include/uapi/asm/posix_types.h @@ -19,6 +19,16 @@ typedef unsigned short __kernel_old_gid_t; typedef int __kernel_suseconds_t; #define __kernel_suseconds_t __kernel_suseconds_t
+typedef long __kernel_long_t; +typedef unsigned long __kernel_ulong_t; +#define __kernel_long_t __kernel_long_t + +struct __kernel_old_timeval { + __kernel_long_t tv_sec; + __kernel_suseconds_t tv_usec; +}; +#define __kernel_old_timeval __kernel_old_timeval + #else /* sparc 32 bit */
diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h index 6b56a2208be7..04d5587f30d3 100644 --- a/include/uapi/linux/time.h +++ b/include/uapi/linux/time.h @@ -63,10 +63,12 @@ struct __kernel_itimerspec { * here, this is probably because it is not y2038 safe and needs to * be changed to use another interface. */ +#ifndef __kernel_old_timeval struct __kernel_old_timeval { __kernel_long_t tv_sec; __kernel_long_t tv_usec; }; +#endif
/* * The IDs of the various system clocks (for POSIX.1b interval timers):
As part of y2038 solution, all internal uses of struct timeval are replaced by struct __kernel_old_timeval and struct compat_timeval by struct old_timeval32. Make socket timestamps use these new types.
This is mainly to be able to verify that the kernel build is y2038 safe when such non y2038 safe types are not supported anymore.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: isdn@linux-pingi.de --- drivers/isdn/mISDN/socket.c | 2 +- include/linux/skbuff.h | 6 +++--- net/bluetooth/hci_sock.c | 4 ++-- net/compat.c | 8 ++++---- net/ipv4/tcp.c | 2 +- net/rds/recv.c | 2 +- net/socket.c | 2 +- 7 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 15d3ca37669a..4ab8b1b6608f 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -103,7 +103,7 @@ mISDN_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) static inline void mISDN_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) { - struct timeval tv; + struct __kernel_old_timeval tv;
if (_pms(sk)->cmask & MISDN_TIME_STAMP) { skb_get_timestamp(skb, &tv); diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 93f56fddd92a..85f6226d106f 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3480,16 +3480,16 @@ static inline ktime_t skb_get_ktime(const struct sk_buff *skb) /** * skb_get_timestamp - get timestamp from a skb * @skb: skb to get stamp from - * @stamp: pointer to struct timeval to store stamp in + * @stamp: pointer to struct __kernel_old_timeval to store stamp in * * Timestamps are stored in the skb as offsets to a base timestamp. * This function converts the offset back to a struct timeval and stores * it in stamp. */ static inline void skb_get_timestamp(const struct sk_buff *skb, - struct timeval *stamp) + struct __kernel_old_timeval *stamp) { - *stamp = ktime_to_timeval(skb->tstamp); + *stamp = ns_to_kernel_old_timeval(skb->tstamp); }
static inline void skb_get_timestampns(const struct sk_buff *skb, diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 1506e1632394..65228bfa4487 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1383,9 +1383,9 @@ static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
if (mask & HCI_CMSG_TSTAMP) { #ifdef CONFIG_COMPAT - struct compat_timeval ctv; + struct old_timeval32 ctv; #endif - struct timeval tv; + struct __kernel_old_timeval tv; void *data; int len;
diff --git a/net/compat.c b/net/compat.c index ad24c1c0f0a1..b6ff0899e424 100644 --- a/net/compat.c +++ b/net/compat.c @@ -209,8 +209,8 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat { struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; struct compat_cmsghdr cmhdr; - struct compat_timeval ctv; - struct compat_timespec cts[3]; + struct old_timeval32 ctv; + struct old_timespec32 cts[3]; int cmlen;
if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) { @@ -220,7 +220,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
if (!COMPAT_USE_64BIT_TIME) { if (level == SOL_SOCKET && type == SO_TIMESTAMP_OLD) { - struct timeval *tv = (struct timeval *)data; + struct __kernel_old_timeval *tv = (struct __kernel_old_timeval *)data; ctv.tv_sec = tv->tv_sec; ctv.tv_usec = tv->tv_usec; data = &ctv; @@ -425,7 +425,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname, mm_segment_t old_fs; int len, err;
- up = (struct compat_timeval __user *) optval; + up = (struct compat_timeval __user *)optval; if (get_user(len, optlen)) return -EFAULT; if (len < sizeof(*up)) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 95eebe94ecf0..e6e2ea0ac0f4 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1864,7 +1864,7 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb, static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, struct scm_timestamping *tss) { - struct timeval tv; + struct __kernel_old_timeval tv; bool has_timestamping = false;
if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) { diff --git a/net/rds/recv.c b/net/rds/recv.c index 04e30d63a159..435bf2320cd3 100644 --- a/net/rds/recv.c +++ b/net/rds/recv.c @@ -549,7 +549,7 @@ static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg,
if ((inc->i_rx_tstamp != 0) && sock_flag(rds_rs_to_sk(rs), SOCK_RCVTSTAMP)) { - struct timeval tv = ktime_to_timeval(inc->i_rx_tstamp); + struct __kernel_old_timeval tv = ns_to_kernel_old_timeval(inc->i_rx_tstamp); ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, sizeof(tv), &tv); if (ret) diff --git a/net/socket.c b/net/socket.c index 5087f9e40f3a..9cc281cdb9d9 100644 --- a/net/socket.c +++ b/net/socket.c @@ -719,7 +719,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
if (need_software_tstamp) { if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) { - struct timeval tv; + struct __kernel_old_timeval tv; skb_get_timestamp(skb, &tv); put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, sizeof(tv), &tv);
The new type is meant to be used as a y2038 safe structure to be used as part of cmsg data. Presently the SO_TIMESTAMP socket option uses struct timeval for timestamps. This is not y2038 safe. Subsequent patches in the series add new y2038 safe socket option to be used in the place of SO_TIMESTAMP_OLD. struct __kernel_sock_timeval will be used as the timestamp format at that time.
struct __kernel_sock_timeval also maintains the same layout across 32 bit and 64 bit ABIs.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com --- include/uapi/linux/time.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h index 04d5587f30d3..b8ad1b86b942 100644 --- a/include/uapi/linux/time.h +++ b/include/uapi/linux/time.h @@ -70,6 +70,11 @@ struct __kernel_old_timeval { }; #endif
+struct __kernel_sock_timeval { + __s64 tv_sec; + __s64 tv_usec; +}; + /* * The IDs of the various system clocks (for POSIX.1b interval timers): */
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of socket timestamp options. These are the y2038 safe versions of the SO_TIMESTAMP_OLD and SO_TIMESTAMPNS_OLD for all architectures.
Note that the format of scm_timestamping.ts[0] is not changed in this patch.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: sparclinux@vger.kernel.org --- arch/alpha/include/uapi/asm/socket.h | 15 ++++++++++-- arch/mips/include/uapi/asm/socket.h | 14 +++++++++-- arch/parisc/include/uapi/asm/socket.h | 14 +++++++++-- arch/sparc/include/uapi/asm/socket.h | 14 +++++++++-- include/linux/skbuff.h | 18 ++++++++++++++ include/net/sock.h | 1 + include/uapi/asm-generic/socket.h | 15 ++++++++++-- net/core/sock.c | 21 ++++++++++++++-- net/ipv4/tcp.c | 35 +++++++++++++++++++++------ net/rds/af_rds.c | 8 ++++-- net/rds/recv.c | 16 ++++++++++-- net/socket.c | 35 +++++++++++++++++++++------ 12 files changed, 174 insertions(+), 32 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 00e45c80e574..352e3dc0b3d9 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -3,6 +3,7 @@ #define _UAPI_ASM_SOCKET_H
#include <asm/sockios.h> +#include <asm/bitsperlong.h>
/* For setsockopt(2) */ /* @@ -110,12 +111,22 @@
#define SO_TIMESTAMP_OLD 29 #define SO_TIMESTAMPNS_OLD 35 + #define SO_TIMESTAMPING_OLD 37
+#define SO_TIMESTAMP_NEW 62 +#define SO_TIMESTAMPNS_NEW 63 + #if !defined(__KERNEL__)
-#define SO_TIMESTAMP SO_TIMESTAMP_OLD -#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#if __BITS_PER_LONG == 64 +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_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) +#endif + #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index b9553f770346..d1752e3f1248 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -11,6 +11,7 @@ #define _UAPI_ASM_SOCKET_H
#include <asm/sockios.h> +#include <asm/bitsperlong.h>
/* * For setsockopt(2) @@ -123,10 +124,19 @@ #define SO_TIMESTAMPNS_OLD 35 #define SO_TIMESTAMPING_OLD 37
+#define SO_TIMESTAMP_NEW 62 +#define SO_TIMESTAMPNS_NEW 63 + #if !defined(__KERNEL__)
-#define SO_TIMESTAMP SO_TIMESTAMP_OLD -#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#if __BITS_PER_LONG == 64 +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_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) +#endif + #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index 37cdfe64bb27..0a45b668abd1 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -3,6 +3,7 @@ #define _UAPI_ASM_SOCKET_H
#include <asm/sockios.h> +#include <asm/bitsperlong.h>
/* For setsockopt(2) */ #define SOL_SOCKET 0xffff @@ -104,10 +105,19 @@ #define SO_TIMESTAMPNS_OLD 0x4013 #define SO_TIMESTAMPING_OLD 0x4020
+#define SO_TIMESTAMP_NEW 0x4037 +#define SO_TIMESTAMPNS_NEW 0x4038 + #if !defined(__KERNEL__)
-#define SO_TIMESTAMP SO_TIMESTAMP_OLD -#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#if __BITS_PER_LONG == 64 +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_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) +#endif + #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index ca573641fc6c..dc8527cae5a7 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -3,6 +3,7 @@ #define _ASM_SOCKET_H
#include <asm/sockios.h> +#include <asm/bitsperlong.h>
/* For setsockopt(2) */ #define SOL_SOCKET 0xffff @@ -105,10 +106,19 @@ #define SO_TIMESTAMPNS_OLD 0x0021 #define SO_TIMESTAMPING_OLD 0x0023
+#define SO_TIMESTAMP_NEW 0x0040 +#define SO_TIMESTAMPNS_NEW 0x0041 + #if !defined(__KERNEL__)
-#define SO_TIMESTAMP SO_TIMESTAMP_OLD -#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#if __BITS_PER_LONG == 64 +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_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) +#endif + #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 85f6226d106f..31c45d4f3896 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3492,12 +3492,30 @@ static inline void skb_get_timestamp(const struct sk_buff *skb, *stamp = ns_to_kernel_old_timeval(skb->tstamp); }
+static inline void skb_get_new_timestamp(const struct sk_buff *skb, + struct __kernel_sock_timeval *stamp) +{ + struct timespec64 ts = ktime_to_timespec64(skb->tstamp); + + stamp->tv_sec = ts.tv_sec; + stamp->tv_usec = ts.tv_nsec / 1000; +} + static inline void skb_get_timestampns(const struct sk_buff *skb, struct timespec *stamp) { *stamp = ktime_to_timespec(skb->tstamp); }
+static inline void skb_get_new_timestampns(const struct sk_buff *skb, + struct __kernel_timespec *stamp) +{ + struct timespec64 ts = ktime_to_timespec64(skb->tstamp); + + stamp->tv_sec = ts.tv_sec; + stamp->tv_nsec = ts.tv_nsec; +} + static inline void __net_timestamp(struct sk_buff *skb) { skb->tstamp = ktime_get_real(); diff --git a/include/net/sock.h b/include/net/sock.h index 2b229f7be8eb..6679f3c120b0 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -805,6 +805,7 @@ enum sock_flags { SOCK_RCU_FREE, /* wait rcu grace period in sk_destruct() */ SOCK_TXTIME, SOCK_XDP, /* XDP is attached */ + SOCK_TSTAMP_NEW, /* Indicates 64 bit timestamps always */ };
#define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE)) diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index dc704e41203d..0b0fae6b57a9 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -3,6 +3,7 @@ #define __ASM_GENERIC_SOCKET_H
#include <asm/sockios.h> +#include <asm/bitsperlong.h>
/* For setsockopt(2) */ #define SOL_SOCKET 1 @@ -107,10 +108,20 @@ #define SO_TIMESTAMPNS_OLD 35 #define SO_TIMESTAMPING_OLD 37
+#define SO_TIMESTAMP_NEW 62 +#define SO_TIMESTAMPNS_NEW 63 + #if !defined(__KERNEL__)
-#define SO_TIMESTAMP SO_TIMESTAMP_OLD -#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__)) +/* on 64-bit and x32, avoid the ?: operator */ +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_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) +#endif + #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/net/core/sock.c b/net/core/sock.c index 492a8407130a..35c7cd9b2793 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -816,9 +816,16 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break;
case SO_TIMESTAMP_OLD: + case SO_TIMESTAMP_NEW: case SO_TIMESTAMPNS_OLD: + case SO_TIMESTAMPNS_NEW: if (valbool) { - if (optname == SO_TIMESTAMP_OLD) + if (optname == SO_TIMESTAMP_NEW || optname == SO_TIMESTAMPNS_NEW) + sock_set_flag(sk, SOCK_TSTAMP_NEW); + else + sock_reset_flag(sk, SOCK_TSTAMP_NEW); + + if (optname == SO_TIMESTAMP_OLD || optname == SO_TIMESTAMP_NEW) sock_reset_flag(sk, SOCK_RCVTSTAMPNS); else sock_set_flag(sk, SOCK_RCVTSTAMPNS); @@ -827,6 +834,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, } else { sock_reset_flag(sk, SOCK_RCVTSTAMP); sock_reset_flag(sk, SOCK_RCVTSTAMPNS); + sock_reset_flag(sk, SOCK_TSTAMP_NEW); } break;
@@ -1188,11 +1196,20 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
case SO_TIMESTAMP_OLD: v.val = sock_flag(sk, SOCK_RCVTSTAMP) && + !sock_flag(sk, SOCK_TSTAMP_NEW) && !sock_flag(sk, SOCK_RCVTSTAMPNS); break;
case SO_TIMESTAMPNS_OLD: - v.val = sock_flag(sk, SOCK_RCVTSTAMPNS); + v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && !sock_flag(sk, SOCK_TSTAMP_NEW); + break; + + case SO_TIMESTAMP_NEW: + v.val = sock_flag(sk, SOCK_RCVTSTAMP) && sock_flag(sk, SOCK_TSTAMP_NEW); + break; + + case SO_TIMESTAMPNS_NEW: + v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && sock_flag(sk, SOCK_TSTAMP_NEW); break;
case SO_TIMESTAMPING_OLD: diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index e6e2ea0ac0f4..44fe307af09c 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1864,20 +1864,39 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb, static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, struct scm_timestamping *tss) { - struct __kernel_old_timeval tv; bool has_timestamping = false; + int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) { if (sock_flag(sk, SOCK_RCVTSTAMP)) { if (sock_flag(sk, SOCK_RCVTSTAMPNS)) { - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, - sizeof(tss->ts[0]), &tss->ts[0]); - } else { - tv.tv_sec = tss->ts[0].tv_sec; - tv.tv_usec = tss->ts[0].tv_nsec / 1000; + if (new_tstamp) { + struct __kernel_timespec kts = {tss->ts[0].tv_sec, tss->ts[0].tv_nsec}; + + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW, + sizeof(kts), &kts); + } else { + struct timespec ts_old = tss->ts[0];
- put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, - sizeof(tv), &tv); + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, + sizeof(ts_old), &ts_old); + } + } else { + if (new_tstamp) { + struct __kernel_sock_timeval stv; + + stv.tv_sec = tss->ts[0].tv_sec; + stv.tv_usec = tss->ts[0].tv_nsec / 1000; + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW, + sizeof(stv), &stv); + } else { + struct __kernel_old_timeval tv; + + tv.tv_sec = tss->ts[0].tv_sec; + tv.tv_usec = tss->ts[0].tv_nsec / 1000; + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, + sizeof(tv), &tv); + } } }
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index eeb4639adbe5..65571a6273c3 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -348,7 +348,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval, }
static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, - int optlen) + int optlen, int optname) { int val, valbool;
@@ -360,6 +360,9 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval,
valbool = val ? 1 : 0;
+ if (optname == SO_TIMESTAMP_NEW) + sock_set_flag(sk, SOCK_TSTAMP_NEW); + if (valbool) sock_set_flag(sk, SOCK_RCVTSTAMP); else @@ -431,8 +434,9 @@ static int rds_setsockopt(struct socket *sock, int level, int optname, release_sock(sock->sk); break; case SO_TIMESTAMP_OLD: + case SO_TIMESTAMP_NEW: lock_sock(sock->sk); - ret = rds_enable_recvtstamp(sock->sk, optval, optlen); + ret = rds_enable_recvtstamp(sock->sk, optval, optlen, optname); release_sock(sock->sk); break; case SO_RDS_MSG_RXPATH_LATENCY: diff --git a/net/rds/recv.c b/net/rds/recv.c index 435bf2320cd3..6bb6b16ca270 100644 --- a/net/rds/recv.c +++ b/net/rds/recv.c @@ -550,8 +550,20 @@ static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg, if ((inc->i_rx_tstamp != 0) && sock_flag(rds_rs_to_sk(rs), SOCK_RCVTSTAMP)) { struct __kernel_old_timeval tv = ns_to_kernel_old_timeval(inc->i_rx_tstamp); - ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, - sizeof(tv), &tv); + + if (!sock_flag(rds_rs_to_sk(rs), SOCK_TSTAMP_NEW)) { + ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, + sizeof(tv), &tv); + } else { + struct __kernel_sock_timeval sk_tv; + + sk_tv.tv_sec = tv.tv_sec; + sk_tv.tv_usec = tv.tv_usec; + + ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW, + sizeof(sk_tv), &sk_tv); + } + if (ret) goto out; } diff --git a/net/socket.c b/net/socket.c index 9cc281cdb9d9..1de96abd78d3 100644 --- a/net/socket.c +++ b/net/socket.c @@ -705,6 +705,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) { int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP); + int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); struct scm_timestamping tss; int empty = 1, false_tstamp = 0; struct skb_shared_hwtstamps *shhwtstamps = @@ -719,15 +720,33 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
if (need_software_tstamp) { if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) { - struct __kernel_old_timeval tv; - skb_get_timestamp(skb, &tv); - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, - sizeof(tv), &tv); + if (new_tstamp) { + struct __kernel_sock_timeval tv; + + skb_get_new_timestamp(skb, &tv); + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW, + sizeof(tv), &tv); + } else { + struct __kernel_old_timeval tv; + + skb_get_timestamp(skb, &tv); + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, + sizeof(tv), &tv); + } } else { - struct timespec ts; - skb_get_timestampns(skb, &ts); - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, - sizeof(ts), &ts); + if (new_tstamp) { + struct __kernel_timespec ts; + + skb_get_new_timestampns(skb, &ts); + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW, + sizeof(ts), &ts); + } else { + struct timespec ts; + + skb_get_timestampns(skb, &ts); + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, + sizeof(ts), &ts); + } } }
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 | 8 ++++++++ include/uapi/asm-generic/socket.h | 5 +++-- include/uapi/linux/errqueue.h | 4 ++++ net/core/scm.c | 27 ++++++++++++++++++++++++++ net/core/sock.c | 8 +++++++- net/ipv4/tcp.c | 28 ++++++++++++++------------- net/smc/af_smc.c | 3 ++- net/socket.c | 13 ++++++++----- 12 files changed, 88 insertions(+), 31 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 352e3dc0b3d9..da08412bd49f 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..1e48f67f1052 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..e8d6cf20f9a4 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..fc65bf6b6440 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 ab2041a00e01..a47e60a1cfdf 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -351,6 +351,14 @@ extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
struct __kernel_timespec; struct old_timespec32; +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..94e618a4a43f 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 35c7cd9b2793..78df5228ffbd 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -838,6 +838,8 @@ int sock_setsockopt(struct socket *sock, int level, int optname, } break;
+ case SO_TIMESTAMPING_NEW: + sock_set_flag(sk, SOCK_TSTAMP_NEW); case SO_TIMESTAMPING_OLD: if (val & ~SOF_TIMESTAMPING_MASK) { ret = -EINVAL; @@ -869,9 +871,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname, if (val & SOF_TIMESTAMPING_RX_SOFTWARE) sock_enable_timestamp(sk, SOCK_TIMESTAMPING_RX_SOFTWARE); - else + else { + if (optname == SO_TIMESTAMPING_NEW) + sock_reset_flag(sk, SOCK_TSTAMP_NEW); + sock_disable_timestamp(sk, (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE)); + } break;
case SO_RCVLOWAT: diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 44fe307af09c..9cdd3d72aecd 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1847,22 +1847,22 @@ 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}; }
/* 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; int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); @@ -1876,7 +1876,7 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW, sizeof(kts), &kts); } else { - struct timespec ts_old = tss->ts[0]; + struct timespec ts_old = timespec64_to_timespec(tss->ts[0]);
put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, sizeof(ts_old), &ts_old); @@ -1903,20 +1903,22 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, 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); } }
@@ -1957,7 +1959,7 @@ 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 c4da4a78d369..c1ce35d36eef 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -289,7 +289,8 @@ 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 1de96abd78d3..d51930689b98 100644 --- a/net/socket.c +++ b/net/socket.c @@ -706,7 +706,8 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, { int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP); int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); - struct scm_timestamping tss; + struct scm_timestamping_internal tss; + int empty = 1, false_tstamp = 0; struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); @@ -752,20 +753,22 @@ 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); + if (sock_flag(sk, SOCK_TSTAMP_NEW)) + 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)
With the new y2038 safe timestamping options added, update the documentation to reflect the changes.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Acked-by: Willem de Bruijn willemb@google.com --- Documentation/networking/timestamping.txt | 43 ++++++++++++++++++++--- 1 file changed, 38 insertions(+), 5 deletions(-)
diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt index 1be0b6f9e0cb..67e4ab3cdb86 100644 --- a/Documentation/networking/timestamping.txt +++ b/Documentation/networking/timestamping.txt @@ -6,11 +6,21 @@ The interfaces for receiving network packages timestamps are: * SO_TIMESTAMP Generates a timestamp for each incoming packet in (not necessarily monotonic) system time. Reports the timestamp via recvmsg() in a - control message as struct timeval (usec resolution). + control message in usec resolution. + SO_TIMESTAMP is defined as SO_TIMESTAMP_NEW or SO_TIMESTAMP_OLD + based on the architecture type and time_t representation of libc. + Control message format is in struct __kernel_old_timeval for + SO_TIMESTAMP_OLD and in struct __kernel_sock_timeval for + SO_TIMESTAMP_NEW options respectively.
* SO_TIMESTAMPNS Same timestamping mechanism as SO_TIMESTAMP, but reports the - timestamp as struct timespec (nsec resolution). + timestamp as struct timespec in nsec resolution. + SO_TIMESTAMPNS is defined as SO_TIMESTAMPNS_NEW or SO_TIMESTAMPNS_OLD + based on the architecture type and time_t representation of libc. + Control message format is in struct timespec for SO_TIMESTAMPNS_OLD + and in struct __kernel_timespec for SO_TIMESTAMPNS_NEW options + respectively.
* IP_MULTICAST_LOOP + SO_TIMESTAMP[NS] Only for multicast:approximate transmit timestamp obtained by @@ -22,7 +32,7 @@ The interfaces for receiving network packages timestamps are: timestamps for stream sockets.
-1.1 SO_TIMESTAMP: +1.1 SO_TIMESTAMP (also SO_TIMESTAMP_OLD and SO_TIMESTAMP_NEW):
This socket option enables timestamping of datagrams on the reception path. Because the destination socket, if any, is not known early in @@ -31,15 +41,25 @@ same is true for all early receive timestamp options.
For interface details, see `man 7 socket`.
+Always use SO_TIMESTAMP_NEW timestamp to always get timestamp in +struct __kernel_sock_timeval format.
-1.2 SO_TIMESTAMPNS: +SO_TIMESTAMP_OLD returns incorrect timestamps after the year 2038 +on 32 bit machines. + +1.2 SO_TIMESTAMPNS (also SO_TIMESTAMPNS_OLD and SO_TIMESTAMPNS_NEW):
This option is identical to SO_TIMESTAMP except for the returned data type. Its struct timespec allows for higher resolution (ns) timestamps than the timeval of SO_TIMESTAMP (ms).
+Always use SO_TIMESTAMPNS_NEW timestamp to always get timestamp in +struct __kernel_timespec format. + +SO_TIMESTAMPNS_OLD returns incorrect timestamps after the year 2038 +on 32 bit machines.
-1.3 SO_TIMESTAMPING: +1.3 SO_TIMESTAMPING (also SO_TIMESTAMPING_OLD and SO_TIMESTAMPING_NEW):
Supports multiple types of timestamp requests. As a result, this socket option takes a bitmap of flags, not a boolean. In @@ -323,10 +343,23 @@ SO_TIMESTAMP and SO_TIMESTAMPNS records can be retrieved. These timestamps are returned in a control message with cmsg_level SOL_SOCKET, cmsg_type SCM_TIMESTAMPING, and payload of type
+For SO_TIMESTAMPING_OLD: + struct scm_timestamping { struct timespec ts[3]; };
+For SO_TIMESTAMPING_NEW: + +struct scm_timestamping64 { + struct __kernel_timespec ts[3]; + +Always use SO_TIMESTAMPING_NEW timestamp to always get timestamp in +struct scm_timestamping64 format. + +SO_TIMESTAMPING_OLD returns incorrect timestamps after the year 2038 +on 32 bit machines. + The structure can return up to three timestamps. This is a legacy feature. At least one field is non-zero at any time. Most timestamps are passed in ts[0]. Hardware timestamps are passed in ts[2].
On Mon, Jan 7, 2019 at 7:28 PM Deepa Dinamani deepa.kernel@gmail.com wrote:
Many architectures maintain an arch specific copy of the file even though there are no differences with the asm-generic one. Allow these architectures to use the generic one instead.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: chris@zankel.net Cc: fenghua.yu@intel.com Cc: tglx@linutronix.de Cc: schwidefsky@de.ibm.com Cc: linux-ia64@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-s390@vger.kernel.org
arch/ia64/include/uapi/asm/Kbuild | 1 + arch/ia64/include/uapi/asm/socket.h | 120 ------------------------- arch/s390/include/uapi/asm/Kbuild | 1 + arch/s390/include/uapi/asm/socket.h | 117 ------------------------ arch/x86/include/uapi/asm/Kbuild | 1 + arch/x86/include/uapi/asm/socket.h | 1 - arch/xtensa/include/asm/Kbuild | 1 + arch/xtensa/include/uapi/asm/Kbuild | 1 + arch/xtensa/include/uapi/asm/socket.h | 122 -------------------------- 9 files changed, 5 insertions(+), 360 deletions(-) delete mode 100644 arch/ia64/include/uapi/asm/socket.h delete mode 100644 arch/s390/include/uapi/asm/socket.h delete mode 100644 arch/x86/include/uapi/asm/socket.h delete mode 100644 arch/xtensa/include/uapi/asm/socket.h
For xtensa: Acked-by: Max Filippov jcmvbkbc@gmail.com
On Mon, Jan 07, 2019 at 07:26:50PM -0800, Deepa Dinamani wrote:
Many architectures maintain an arch specific copy of the file even though there are no differences with the asm-generic one. Allow these architectures to use the generic one instead.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com
arch/s390/include/uapi/asm/Kbuild | 1 + arch/s390/include/uapi/asm/socket.h | 117 ------------------------
For the s390 bits:
Acked-by: Heiko Carstens heiko.carstens@de.ibm.com
On Mon, Jan 7, 2019 at 10:29 PM Deepa Dinamani deepa.kernel@gmail.com wrote:
The series introduces new socket timestamps that are y2038 safe.
The time data types used for the existing socket timestamp options: SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING are not y2038 safe. The series introduces SO_TIMESTAMP_NEW, SO_TIMESTAMPNS_NEW and SO_TIMESTAMPING_NEW to replace these. These new timestamps can be used on all architectures.
The alternative considered was to extend the sys_setsockopt() by using the flags. We did not receive any strong opinions about either of the approaches. Hence, this was chosen, as glibc folks preferred this.
The series does not deal with updating the internal kernel socket calls like rxrpc to make them y2038 safe. This will be dealt with separately.
Note that the timestamps behavior already does not match the man page specific behavior: SIOCGSTAMP This ioctl should only be used if the socket option SO_TIMESTAMP is not set on the socket. Otherwise, it returns the timestamp of the last packet that was received while SO_TIMESTAMP was not set, or it fails if no such packet has been received, (i.e., ioctl(2) returns -1 with errno set to ENOENT).
The recommendation is to update the man page to remove the above statement.
The overview of the series is as below:
- Delete asm specific socket.h when possible.
- Support SO/SCM_TIMESTAMP* options only in userspace.
- Rename current SO/SCM_TIMESTAMP* to SO/SCM_TIMESTAMP*_OLD.
- Alter socket options so that SOCK_RCVTSTAMPNS does not rely on SOCK_RCVTSTAMP.
- Introduce y2038 safe types for socket timestamp.
- Introduce new y2038 safe socket options SO/SCM_TIMESTAMP*_NEW.
Changes since v2:
- Removed extra functions to reduce diff churn as per code review
Thanks, Deepa. This set looks great to me.
One issue, it does not apply cleanly to current davem-net-next/master for me. A conflict on patch 7. It does apply cleanly on davem-net master. Please rebase and also send with [PATCH net-next].
Perhaps also run the selftests in tools/testing/selftests/networking/timestamping/txtimestamp.sh, just to be sure.
Since you have a to resend anyway, a few minor nits inline, as well.
On Mon, Jan 7, 2019 at 10:29 PM Deepa Dinamani deepa.kernel@gmail.com wrote:
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
--- 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
nit: unnecessary? perhaps need to get indentation consistent immediately in the previous patch in this series that introduces SO_TIMESTAMP_NEW
On Mon, Jan 7, 2019 at 10:29 PM Deepa Dinamani deepa.kernel@gmail.com wrote:
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of socket timestamp options. These are the y2038 safe versions of the SO_TIMESTAMP_OLD and SO_TIMESTAMPNS_OLD for all architectures.
Note that the format of scm_timestamping.ts[0] is not changed in this patch.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: sparclinux@vger.kernel.org
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 00e45c80e574..352e3dc0b3d9 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -3,6 +3,7 @@ #define _UAPI_ASM_SOCKET_H
#include <asm/sockios.h> +#include <asm/bitsperlong.h>
/* For setsockopt(2) */ /* @@ -110,12 +111,22 @@
#define SO_TIMESTAMP_OLD 29 #define SO_TIMESTAMPNS_OLD 35
nit: unnecessary whitespace line
@@ -1864,20 +1864,39 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb, static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, struct scm_timestamping *tss) {
struct __kernel_old_timeval tv; bool has_timestamping = false;
int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) { if (sock_flag(sk, SOCK_RCVTSTAMP)) { if (sock_flag(sk, SOCK_RCVTSTAMPNS)) {
put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,sizeof(tss->ts[0]), &tss->ts[0]);} else {tv.tv_sec = tss->ts[0].tv_sec;tv.tv_usec = tss->ts[0].tv_nsec / 1000;
if (new_tstamp) {struct __kernel_timespec kts = {tss->ts[0].tv_sec, tss->ts[0].tv_nsec};put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW,sizeof(kts), &kts);} else {struct timespec ts_old = tss->ts[0];
nit: intermediate variable not needed as tss->ts[0] is also of type struct timespec.
On Tue, Jan 8, 2019 at 8:37 AM Willem de Bruijn willemdebruijn.kernel@gmail.com wrote:
On Mon, Jan 7, 2019 at 10:29 PM Deepa Dinamani deepa.kernel@gmail.com wrote:
The series introduces new socket timestamps that are y2038 safe.
The time data types used for the existing socket timestamp options: SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING are not y2038 safe. The series introduces SO_TIMESTAMP_NEW, SO_TIMESTAMPNS_NEW and SO_TIMESTAMPING_NEW to replace these. These new timestamps can be used on all architectures.
The alternative considered was to extend the sys_setsockopt() by using the flags. We did not receive any strong opinions about either of the approaches. Hence, this was chosen, as glibc folks preferred this.
The series does not deal with updating the internal kernel socket calls like rxrpc to make them y2038 safe. This will be dealt with separately.
Note that the timestamps behavior already does not match the man page specific behavior: SIOCGSTAMP This ioctl should only be used if the socket option SO_TIMESTAMP is not set on the socket. Otherwise, it returns the timestamp of the last packet that was received while SO_TIMESTAMP was not set, or it fails if no such packet has been received, (i.e., ioctl(2) returns -1 with errno set to ENOENT).
The recommendation is to update the man page to remove the above statement.
The overview of the series is as below:
- Delete asm specific socket.h when possible.
- Support SO/SCM_TIMESTAMP* options only in userspace.
- Rename current SO/SCM_TIMESTAMP* to SO/SCM_TIMESTAMP*_OLD.
- Alter socket options so that SOCK_RCVTSTAMPNS does not rely on SOCK_RCVTSTAMP.
- Introduce y2038 safe types for socket timestamp.
- Introduce new y2038 safe socket options SO/SCM_TIMESTAMP*_NEW.
Changes since v2:
- Removed extra functions to reduce diff churn as per code review
Thanks, Deepa. This set looks great to me.
One issue, it does not apply cleanly to current davem-net-next/master for me. A conflict on patch 7. It does apply cleanly on davem-net master. Please rebase and also send with [PATCH net-next].
to be clear, with the version, so this will be [PATCH net-next v4].
On Mon, Jan 7, 2019 at 10:29 PM Deepa Dinamani deepa.kernel@gmail.com wrote:
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of socket timestamp options. These are the y2038 safe versions of the SO_TIMESTAMP_OLD and SO_TIMESTAMPNS_OLD for all architectures.
Note that the format of scm_timestamping.ts[0] is not changed in this patch.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: sparclinux@vger.kernel.org
@@ -1864,20 +1864,39 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb, static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, struct scm_timestamping *tss) {
struct __kernel_old_timeval tv; bool has_timestamping = false;
int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
nit: move above has_timestamping to maintain reverse christmas tree ordering
From: Deepa Dinamani deepa.kernel@gmail.com Date: Mon, 7 Jan 2019 19:26:49 -0800
The series introduces new socket timestamps that are y2038 safe.
Great discussion, but this is definitely net-next material and the net-next tree is not open at this time.
-
David Miller -
Deepa Dinamani -
Heiko Carstens -
Max Filippov -
Willem de Bruijn