From patchwork Mon Jan 24 12:28:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella X-Patchwork-Id: 50390 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 38CD83858000 for ; Mon, 24 Jan 2022 12:29:29 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 38CD83858000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1643027369; bh=NChMCIlaafgryf8fTqpRB38eoXsubbFDqIS3U5G7YUY=; 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=YsDyYu54jE/0l7pnrxi97tJZwtT+39NG7UzLgT9sZsp26VPU1/PImGc2Dellz6tlm DxCOLWcUhnDA3bqOyRvhlgv5qAEWa2R5Cw+Ke51TgGnQ+STMDMliU7ZQAHcC0enOx0 XxnWVtY/q5atKDandPXFakhZ3K3E/iy/fe8272OU= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-oi1-x236.google.com (mail-oi1-x236.google.com [IPv6:2607:f8b0:4864:20::236]) by sourceware.org (Postfix) with ESMTPS id B2BD33858C60 for ; Mon, 24 Jan 2022 12:28:26 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B2BD33858C60 Received: by mail-oi1-x236.google.com with SMTP id x193so25308652oix.0 for ; Mon, 24 Jan 2022 04:28:26 -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=NChMCIlaafgryf8fTqpRB38eoXsubbFDqIS3U5G7YUY=; b=zZ/AdMDk5YA6hMz80Ak2OepoBt5qD4CuLJJkL6rP6w9js2guVU601i4li7kCPhG60M b8WpD9O5RZYyWEMMLa0Y7jdLA925JMHyez3vJpk+sUtCr4M1BfHk3FdwlhdKbp+0eYSn epFSxTC4ctj3i6bCflOYaHJfCXkMyCVTn9MHTTcsrfyQAIOz/Wc3xfkVulYjhTvHHdWJ Wv+5GS73WItt+r0P9tLvINAut4vp4fUzuANzIRxrsZtUuEwiL9jRplC/7Pm45Aaf23PN bQ3F1weLNBfcxikOAbahLwO0w2RBJ/Dso95aZjTmrJrQGmTbIz15SMXYJ4IRgUXCTEqG qzGQ== X-Gm-Message-State: AOAM531cSTj87EItoC2LoL6g0iRv0g3MfPdGJgJVrOH2usJDUsQLnYBx dx0P4Kj3EwI3M7TgrTp2YmkSN7Iqj1oSPw== X-Google-Smtp-Source: ABdhPJz8GBTKULmWFPCep4xGpVsdMHp7oP7DD7WdLPxDlJjk9ongJWmGkbR/5ub4+AOmEtpNKbUC/w== X-Received: by 2002:a05:6808:242:: with SMTP id m2mr1137156oie.145.1643027305964; Mon, 24 Jan 2022 04:28:25 -0800 (PST) Received: from birita.. ([2804:431:c7cb:27f8:c505:63c0:de61:b716]) by smtp.gmail.com with ESMTPSA id k17sm5133289otk.80.2022.01.24.04.28.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jan 2022 04:28:25 -0800 (PST) To: libc-alpha@sourceware.org, Florian Weimer Subject: [PATCH v5 1/2] support: Add support_socket_so_timestamp_time64 Date: Mon, 24 Jan 2022 09:28:20 -0300 Message-Id: <20220124122821.1265965-2-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220124122821.1265965-1-adhemerval.zanella@linaro.org> References: <20220124122821.1265965-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-11.8 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 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. --- 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..f3911a4932 --- /dev/null +++ b/support/support_socket_so_timestamp_time64.c @@ -0,0 +1,48 @@ +/* Return whether socket supports 64-bit timestamps. + Copyright (C) 2021 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 +}