From patchwork Thu Jan 27 20:15:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 50498 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 7275C3947411 for ; Thu, 27 Jan 2022 20:17:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7275C3947411 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1643314672; bh=NxoRY5ncVpp0Z0kQ2r44kaQQMwUw6Ifk+PT650AnukA=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=tbEVxSF77QtshfmmPy1asL+Mx8utJ+Cdv0ytEMbt2k4nVyk1Jd6KtVyH0aGcliVts CfmHKocEaWDgi1T7I97r1v5OLyQHFT44hIZT9/iEhrWDqGV753fp3s6Ox0bkyctFAA 8lbIJvNKZ7ty4/SttrY39m4+J+YAxlGEZvhMirLo= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-oi1-x230.google.com (mail-oi1-x230.google.com [IPv6:2607:f8b0:4864:20::230]) by sourceware.org (Postfix) with ESMTPS id 727CD3899047 for ; Thu, 27 Jan 2022 20:15:48 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 727CD3899047 Received: by mail-oi1-x230.google.com with SMTP id u129so8126826oib.4 for ; Thu, 27 Jan 2022 12:15:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=NxoRY5ncVpp0Z0kQ2r44kaQQMwUw6Ifk+PT650AnukA=; b=JOUkh2WpSKjcOR6fqqDbO78xovk4YpmI+t9b5X9lLnlMqStbUbhgxsVI86Cl3uke4N 4FmnfSFLNXjEarPmafN4aWbxBiEJeUS3WRB+OyWjP/zfjjxWM3Oj10KDhlRrPJQ5rnis U1kewA8lajyVKSRTGKu1923gHaKZRkNvuY/s6zECdAqvThQotj85ROMUQysGBGlWcMyI P4rcdPdlgh7m9onsY45C653VKErEgn8Aww7vw/IWuSEC8D8pF1u39tIgi9/aVme9bD7c T1AlIYHfkUpmk4afpIADZCSqn0Ut1dJPlJt4NvizrB157pKUAV8thkkAMZ8y0Bmdhuom D5Ow== X-Gm-Message-State: AOAM531AwxZG+F5U2HD0mMG3T3Gn7xdgQqAmbGmmfs8CrVY4RckGygvB UTavSij68VOwx5tsqtVY3InxsGj7Fm1vJA== X-Google-Smtp-Source: ABdhPJyew80MQy3tDo5+OjMpx8J4OIZRwtVCO7VLKQ1JseC5mcmlETIDgMgEgTnwIPDKQcM3Ot1vYA== X-Received: by 2002:a05:6808:30a7:: with SMTP id bl39mr8277642oib.341.1643314547764; Thu, 27 Jan 2022 12:15:47 -0800 (PST) Received: from birita.. ([2804:431:c7ca:709a:1507:9c68:3ec9:801]) by smtp.gmail.com with ESMTPSA id l22sm4928871otj.44.2022.01.27.12.15.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jan 2022 12:15:47 -0800 (PST) To: libc-alpha@sourceware.org, Florian Weimer , Carlos O'Donell Subject: [PATCH v5 1/3] support: Add support_socket_so_timestamp_time64 Date: Thu, 27 Jan 2022 17:15:40 -0300 Message-Id: <20220127201542.2306657-2-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220127201542.2306657-1-adhemerval.zanella@linaro.org> References: <20220127201542.2306657-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-11.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_NUMSUBJECT, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Adhemerval Zanella via Libc-alpha From: Adhemerval Zanella Netto Reply-To: Adhemerval Zanella Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" Check if the socket support 64-bit network packages timestamps (SO_TIMESTAMP and SO_TIMESTAMPNS). This will be used on recvmsg and recvmmsg tests to check if the timestamp should be generated. Reviewed-by: Florian Weimer --- support/Makefile | 1 + support/support.h | 4 ++ support/support_socket_so_timestamp_time64.c | 48 ++++++++++++++++++++ 3 files changed, 53 insertions(+) create mode 100644 support/support_socket_so_timestamp_time64.c diff --git a/support/Makefile b/support/Makefile index 6dc6c9d49a..5ddcb8d158 100644 --- a/support/Makefile +++ b/support/Makefile @@ -80,6 +80,7 @@ libsupport-routines = \ support_set_small_thread_stack_size \ support_shared_allocate \ support_small_stack_thread_attribute \ + support_socket_so_timestamp_time64 \ support_stat_nanoseconds \ support_subprocess \ support_test_compare_blob \ diff --git a/support/support.h b/support/support.h index ee27149d98..73b9fc48f0 100644 --- a/support/support.h +++ b/support/support.h @@ -183,6 +183,10 @@ extern bool support_select_modifies_timeout (void); tv_usec larger than 1000000. */ extern bool support_select_normalizes_timeout (void); +/* Return true if socket FD supports 64-bit timestamps with the SOL_SOCKET + and SO_TIMESTAMP/SO_TIMESTAMPNS. */ +extern bool support_socket_so_timestamp_time64 (int fd); + /* Create a timer that trigger after SEC seconds and NSEC nanoseconds. If REPEAT is true the timer will repeat indefinitely. If CALLBACK is not NULL, the function will be called when the timer expires; otherwise a diff --git a/support/support_socket_so_timestamp_time64.c b/support/support_socket_so_timestamp_time64.c new file mode 100644 index 0000000000..54bf3f4272 --- /dev/null +++ b/support/support_socket_so_timestamp_time64.c @@ -0,0 +1,48 @@ +/* Return whether socket supports 64-bit timestamps. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include +#include +#ifdef __linux__ +# include +#endif + +bool +support_socket_so_timestamp_time64 (int fd) +{ +#ifdef __linux__ +# if __LINUX_KERNEL_VERSION >= 0x050100 \ + || __WORDSIZE == 64 \ + || (defined __SYSCALL_WORDSIZE && __SYSCALL_WORDSIZE == 64) + return true; +# else + int level = SOL_SOCKET; + int optname = COMPAT_SO_TIMESTAMP_NEW; + int optval; + socklen_t len = sizeof (optval); + + int r = syscall (__NR_getsockopt, fd, level, optname, &optval, &len); + return r != -1; +# endif +#else + return false; +#endif +}