From patchwork Mon Dec 13 14:36:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 48871 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 55E783858419 for ; Mon, 13 Dec 2021 14:37:54 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 55E783858419 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1639406274; bh=Ul3XuhWL+p0m79nG2K9b0xmpGfi8wFYi3d3XtlJrCQU=; 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=GiEUIIFeGW53+EhFeADVGuQGkKOacP481qyJ1Ryhw9/eCW4FrGjInpH4y4usUIs8G gACxYUwsEUc2uuhNzQwnnVDi5fXd2I3JOPazz+G8WeaJmD23c5WINePDmveLL6H/gl vkf/jIB2tZXdlTIibQjZSYFUlmtbRRNwkB//R6DE= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-qv1-xf2e.google.com (mail-qv1-xf2e.google.com [IPv6:2607:f8b0:4864:20::f2e]) by sourceware.org (Postfix) with ESMTPS id D949B3858429 for ; Mon, 13 Dec 2021 14:36:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org D949B3858429 Received: by mail-qv1-xf2e.google.com with SMTP id kl8so14536533qvb.3 for ; Mon, 13 Dec 2021 06:36:49 -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=Ul3XuhWL+p0m79nG2K9b0xmpGfi8wFYi3d3XtlJrCQU=; b=CnVDkCQM3TEdggvH7FihbCI51bt6EjuAi7wFWolee8K6PDVEu3WR0lTBWMSWSL/Lgq crco9hVfiuIxs6xI3eERMhkQPi1RTcVpPkvpiSKfE7vAvcxLKUqURVRrGmW0i49Xkp8f 0H0E0iWrgL8y41RDk3FPJfSnya84x3Kvwk32GImnYV4IE+Poy58eEMQwL9Eixttfsg2O ww0T8e/SeGNW7k1/Fi9t2WB2T837GT7Ul071J6MmsNxvh3PJRVV5qC/pzfPaKG8oGFvO nij3WxcZ8040eGZ+/XP2+tMXnxbdMyzRwpqPqTPExutLGsE4j1dVSYfVTWpgAxSIglNj xR8A== X-Gm-Message-State: AOAM532CtxYXn5h2OPp++Npibj4zcfLjuSE9BWQUwPrsyVKilVeCKkNC eIJCvjdAgmu9u2ox+fyRrfJ1xfGl+GhD8g== X-Google-Smtp-Source: ABdhPJxaasMrR4mzYejrIrow2XvMiUl1GxzA9oGvn8fftnjHRNAU/1w7HJA+HqGf9X9nMDtRhXYTcg== X-Received: by 2002:a05:6214:8e5:: with SMTP id dr5mr42669010qvb.28.1639406209020; Mon, 13 Dec 2021 06:36:49 -0800 (PST) Received: from birita.. ([2804:431:c7ca:a776:980f:2e90:a6d5:36a5]) by smtp.gmail.com with ESMTPSA id x16sm5933672qkp.67.2021.12.13.06.36.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Dec 2021 06:36:48 -0800 (PST) To: libc-alpha@sourceware.org, Florian Weimer Subject: [PATCH v3 1/2] support: Add support_socket_so_timestamp_time64 Date: Mon, 13 Dec 2021 11:36:42 -0300 Message-Id: <20211213143643.1182659-2-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211213143643.1182659-1-adhemerval.zanella@linaro.org> References: <20211213143643.1182659-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-11.9 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. --- support/Makefile | 1 + support/support.h | 4 ++ support/support_socket_so_timestamp_time64.c | 56 ++++++++++++++++++++ 3 files changed, 61 insertions(+) create mode 100644 support/support_socket_so_timestamp_time64.c diff --git a/support/Makefile b/support/Makefile index 984ec02dfe..073eb7bb4b 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 10a4a36848..28b1cbb304 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..eb8f8ef0cc --- /dev/null +++ b/support/support_socket_so_timestamp_time64.c @@ -0,0 +1,56 @@ +/* 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); +# ifdef __NR_socketcall + if (r == -1 && errno == ENOSYS) + { + long int args[] = { fd, level, optname, (long int) &optval, + sizeof (optval) }; + r = syscall (__NR_socketcall, 15 /* SOCKOP_getsockopt */ , args); + } +# endif + return r != -1; +# endif +#else + return false; +#endif +}