From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2C74C282D8 for ; Fri, 1 Feb 2019 15:44:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8FBBB20855 for ; Fri, 1 Feb 2019 15:44:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="upDI238A" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730964AbfBAPoc (ORCPT ); Fri, 1 Feb 2019 10:44:32 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:37702 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728668AbfBAPo3 (ORCPT ); Fri, 1 Feb 2019 10:44:29 -0500 Received: by mail-pg1-f195.google.com with SMTP id c25so3114420pgb.4; Fri, 01 Feb 2019 07:44:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=d1oHH9qmXIiXpGCgUqQHpuh4pHPto/kVPpEYkxMtaPI=; b=upDI238Au5WzLUcbP0KPdIxH87BWPY3pfL/PyFa/sxwE/KkkNoZBWeAmH4VJemBCbJ hwNipV1oHGdiA28RwSGIgzNHBis9kluvGoGqsfqYUx9SbpEhKtGfIkVCEbTnQhbvUNxA AnBzqzq8hPgqcMfmucZIfPuD7VFhLFbP5/ayfqwYMgBEpoZib3amXefOMlwnFtE0k9SI 0PUCcovNyvoCpCIcykGN9RgKZICiq+YBTV2/PdKs2Ulsv/VzUrbKfW7WT01N561D53RK zk2E5CF5aW+S2VTLG/5faBCAHdi8L9bo/lgTJaq3Q2vQAdkFxAdfinE/TwMbBqafMlVV +a5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=d1oHH9qmXIiXpGCgUqQHpuh4pHPto/kVPpEYkxMtaPI=; b=oWgjCQtgFl4mNlzogGcMthxy5WgFUvEwoN67J4Fgz5eRNE87WIOZGBuR966a59DGcS ADCXWkp9Q8UdcHcH+N9GYlVbfOGlSL9YRuIcNUugI6fcW6YpWYyodSvBQEHs+eG3ireM XNKkN4dTZUmn823yGq5TkGYBx3zhMGoRNKdGj5rmALv1MvYPBzL4J5xk+vAoASFSHG3U VzaHLLqo0u7bsyzYrJxjGULxe+c2NvwR9qqeEOr8+QQOEz7qqZnqZnxtQjV3qCproavX HfPekrX0wW3ftb9BUF/aRHvDn0RLZnF5kDSybExI2+xAh1SMUtVVFUAy6PD+dG2qu86b Fc3Q== X-Gm-Message-State: AHQUAua0nvylYn3TJAZxnJTvOhotuJfgGhaLEeOvUvQZjGk6yUpuoZRY wrQ+a8P8FVA+eVd+70gSGaNd8S1dfxQ= X-Google-Smtp-Source: AHgI3IZ9lBl0FIUC8xg+/A8ZoaR7KDlu1nBSN4YjDV4BO0jel7leTN3+aF7knnr6wT2wtVfk7yzmOg== X-Received: by 2002:a63:5346:: with SMTP id t6mr2798384pgl.40.1549035867857; Fri, 01 Feb 2019 07:44:27 -0800 (PST) Received: from localhost.localdomain ([49.206.15.111]) by smtp.gmail.com with ESMTPSA id z9sm25886959pfd.99.2019.02.01.07.44.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Feb 2019 07:44:26 -0800 (PST) From: Deepa Dinamani To: davem@davemloft.net, linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org, arnd@arndb.de, y2038@lists.linaro.org Subject: [PATCH net-next v4 00/12] net: y2038-safe socket timestamps Date: Fri, 1 Feb 2019 07:43:44 -0800 Message-Id: <20190201154356.15536-1-deepa.kernel@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 socket timestamp 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. 6. Intorduce new y2038 safe socket timeout options. Changes since v3: * Rebased onto net-next and fixups as per review comments * Merged the socket timeout series * Integrated Arnd's patch to simplify compat handling of timeout syscalls 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 Arnd Bergmann (1): socket: move compat timeout handling into sock.c Deepa Dinamani (11): selftests: add missing include unistd 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 socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes sock: Add SO_RCVTIMEO_NEW and SO_SNDTIMEO_NEW Documentation/networking/timestamping.txt | 43 ++++- arch/alpha/include/uapi/asm/socket.h | 47 ++++-- arch/ia64/include/uapi/asm/Kbuild | 1 + arch/ia64/include/uapi/asm/socket.h | 122 -------------- arch/mips/include/uapi/asm/socket.h | 47 ++++-- arch/parisc/include/uapi/asm/socket.h | 46 ++++-- arch/powerpc/include/uapi/asm/socket.h | 4 +- arch/s390/include/uapi/asm/Kbuild | 1 + arch/s390/include/uapi/asm/socket.h | 119 -------------- arch/sparc/include/uapi/asm/posix_types.h | 10 ++ arch/sparc/include/uapi/asm/socket.h | 49 ++++-- 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 | 124 -------------- drivers/isdn/mISDN/socket.c | 2 +- fs/dlm/lowcomms.c | 4 +- include/linux/skbuff.h | 24 ++- include/linux/socket.h | 8 + include/net/sock.h | 1 + include/uapi/asm-generic/socket.h | 48 ++++-- include/uapi/linux/errqueue.h | 4 + include/uapi/linux/time.h | 7 + net/bluetooth/hci_sock.c | 4 +- net/compat.c | 78 +-------- net/core/scm.c | 27 ++++ net/core/sock.c | 151 +++++++++++++----- 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 ++++-- net/vmw_vsock/af_vsock.c | 4 +- .../networking/timestamping/rxtimestamp.c | 1 + 36 files changed, 541 insertions(+), 583 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 -- 2.17.1