From patchwork Sun Jan 10 00:18:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Ahern X-Patchwork-Id: 12008821 X-Patchwork-Delegate: kuba@kernel.org 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=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 4DCB3C43381 for ; Sun, 10 Jan 2021 00:19:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2499D2388A for ; Sun, 10 Jan 2021 00:19:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726380AbhAJATi (ORCPT ); Sat, 9 Jan 2021 19:19:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:52656 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726321AbhAJATi (ORCPT ); Sat, 9 Jan 2021 19:19:38 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 08249239D3; Sun, 10 Jan 2021 00:18:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1610237937; bh=A7fICvUmlqY05fcclR5wKwuk/ao5eGVQ2x0uhWW8TTY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y1OSDIH/JOrOCFmW+8iMn6jijmMO85QsY2oe681ulxEM9qf4jskcT1KyQROYxrVrC Z8Fk2zOU1ONUFpB1ltfMIgNxEl0MZE0nXR6UxJLNMKz/InzQwDxo8mos3Y0Ifo+xQJ yEOvZXB964hTz40Gxv3Ctk6DOgZh5K6NKofALQYIW7BI45tBRNRDZhkkxTcokrLSAM fIH/1n4Q1rM0eMEetJWlQa1CWOza4CBhtvHzhGB7G+d5cHrxrW4CeYseBC6Le6QPiz NaiYVznzRRohBGLNXFH+xNvTdYtHwZmGlRCkopzxTYHtWFwTKzWrPYgfZ8ZMjTRyoA IqJGh1CtE0EKg== From: David Ahern To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, schoen@loyalty.org, David Ahern Subject: [PATCH net-next v2 03/11] selftests: Move address validation in nettest Date: Sat, 9 Jan 2021 17:18:44 -0700 Message-Id: <20210110001852.35653-4-dsahern@kernel.org> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20210110001852.35653-1-dsahern@kernel.org> References: <20210110001852.35653-1-dsahern@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: David Ahern IPv6 addresses can have a device name to declare a scope (e.g., fe80::5054:ff:fe12:3456%eth0). The next patch adds support to switch network namespace before running client or server code (or both), so move the address validation to the server and client functions. IPv4 multicast groups do not have the device scope in the address specification, so they can be validated inline with option parsing. Signed-off-by: David Ahern --- tools/testing/selftests/net/nettest.c | 60 +++++++++++++++++++-------- 1 file changed, 43 insertions(+), 17 deletions(-) diff --git a/tools/testing/selftests/net/nettest.c b/tools/testing/selftests/net/nettest.c index 337ae54e252d..3b083fad3577 100644 --- a/tools/testing/selftests/net/nettest.c +++ b/tools/testing/selftests/net/nettest.c @@ -43,12 +43,14 @@ struct sock_args { /* local address */ + const char *local_addr_str; union { struct in_addr in; struct in6_addr in6; } local_addr; /* remote address */ + const char *remote_addr_str; union { struct in_addr in; struct in6_addr in6; @@ -77,6 +79,7 @@ struct sock_args { const char *password; /* prefix for MD5 password */ + const char *md5_prefix_str; union { struct sockaddr_in v4; struct sockaddr_in6 v6; @@ -88,12 +91,14 @@ struct sock_args { int expected_ifindex; /* local address */ + const char *expected_laddr_str; union { struct in_addr in; struct in6_addr in6; } expected_laddr; /* remote address */ + const char *expected_raddr_str; union { struct in_addr in; struct in6_addr in6; @@ -753,6 +758,34 @@ static int convert_addr(struct sock_args *args, const char *_str, return rc; } +static int validate_addresses(struct sock_args *args) +{ + if (args->local_addr_str && + convert_addr(args, args->local_addr_str, ADDR_TYPE_LOCAL) < 0) + return 1; + + if (args->remote_addr_str && + convert_addr(args, args->remote_addr_str, ADDR_TYPE_REMOTE) < 0) + return 1; + + if (args->md5_prefix_str && + convert_addr(args, args->md5_prefix_str, + ADDR_TYPE_MD5_PREFIX) < 0) + return 1; + + if (args->expected_laddr_str && + convert_addr(args, args->expected_laddr_str, + ADDR_TYPE_EXPECTED_LOCAL)) + return 1; + + if (args->expected_raddr_str && + convert_addr(args, args->expected_raddr_str, + ADDR_TYPE_EXPECTED_REMOTE)) + return 1; + + return 0; +} + static int get_index_from_cmsg(struct msghdr *m) { struct cmsghdr *cm; @@ -1344,7 +1377,7 @@ static int do_server(struct sock_args *args) fd_set rfds; int rc; - if (resolve_devices(args)) + if (resolve_devices(args) || validate_addresses(args)) return 1; if (prog_timeout) @@ -1532,7 +1565,7 @@ static int do_client(struct sock_args *args) return 1; } - if (resolve_devices(args)) + if (resolve_devices(args) || validate_addresses(args)) return 1; if ((args->use_setsockopt || args->use_cmsg) && !args->ifindex) { @@ -1680,13 +1713,11 @@ int main(int argc, char *argv[]) break; case 'l': args.has_local_ip = 1; - if (convert_addr(&args, optarg, ADDR_TYPE_LOCAL) < 0) - return 1; + args.local_addr_str = optarg; break; case 'r': args.has_remote_ip = 1; - if (convert_addr(&args, optarg, ADDR_TYPE_REMOTE) < 0) - return 1; + args.remote_addr_str = optarg; break; case 'p': if (str_to_uint(optarg, 1, 65535, &tmp) != 0) { @@ -1733,8 +1764,7 @@ int main(int argc, char *argv[]) args.password = optarg; break; case 'm': - if (convert_addr(&args, optarg, ADDR_TYPE_MD5_PREFIX) < 0) - return 1; + args.md5_prefix_str = optarg; break; case 'S': args.use_setsockopt = 1; @@ -1762,16 +1792,11 @@ int main(int argc, char *argv[]) break; case '0': args.has_expected_laddr = 1; - if (convert_addr(&args, optarg, - ADDR_TYPE_EXPECTED_LOCAL)) - return 1; + args.expected_laddr_str = optarg; break; case '1': args.has_expected_raddr = 1; - if (convert_addr(&args, optarg, - ADDR_TYPE_EXPECTED_REMOTE)) - return 1; - + args.expected_raddr_str = optarg; break; case '2': args.expected_dev = optarg; @@ -1786,12 +1811,13 @@ int main(int argc, char *argv[]) } if (args.password && - ((!args.has_remote_ip && !args.prefix_len) || args.type != SOCK_STREAM)) { + ((!args.has_remote_ip && !args.md5_prefix_str) || + args.type != SOCK_STREAM)) { log_error("MD5 passwords apply to TCP only and require a remote ip for the password\n"); return 1; } - if (args.prefix_len && !args.password) { + if (args.md5_prefix_str && !args.password) { log_error("Prefix range for MD5 protection specified without a password\n"); return 1; }