From patchwork Tue Mar 29 02:14:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishen Maloor X-Patchwork-Id: 12794392 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28BC220E6 for ; Tue, 29 Mar 2022 02:14:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648520085; x=1680056085; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=+o04xQLPfR6ph1mrN9TOLw9IIeTZ0vtmCqoGxs1NsH0=; b=BIYLiRNi5Rpjiz4lk7GHJRE+Kgz50SYahHRKnLL+fPOKzAJTq7CcPdhP 1BXEjIP2iJxS/T/+M1yRIYC+x88owdcFq4NWIzUDVuylyyw1AzpAURTy9 8cBtuEpUYb/cLWyxb2kreZmxSMpcBk9SCSEw5GACAZQ8osleixXNHQCfK WJezgTRM8ZfiGQbQETIjcPTVsQvpEkRphujgkkfNrL2X+zBPs1gImYOQ4 hIbMLR53egBUTqUXjOwVAVmL5O1pz0qbY3JzngTqvZI1hDevr5HcUzsa2 T+zzf4HA3B5wjy3nxMdfkCBclmesizN3ouRYE0D2PV2rSCcJ+VTjl7jfz g==; X-IronPort-AV: E=McAfee;i="6200,9189,10300"; a="258857998" X-IronPort-AV: E=Sophos;i="5.90,219,1643702400"; d="scan'208";a="258857998" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2022 19:14:43 -0700 X-IronPort-AV: E=Sophos;i="5.90,219,1643702400"; d="scan'208";a="564202908" Received: from otc-tsn-4.jf.intel.com ([10.23.153.135]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2022 19:14:42 -0700 From: Kishen Maloor To: kishen.maloor@intel.com, mptcp@lists.linux.dev Subject: [PATCH mptcp-next v6 11/14] selftests: mptcp: support MPTCP_PM_CMD_SUBFLOW_DESTROY Date: Mon, 28 Mar 2022 22:14:34 -0400 Message-Id: <20220329021437.1196552-12-kishen.maloor@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220329021437.1196552-1-kishen.maloor@intel.com> References: <20220329021437.1196552-1-kishen.maloor@intel.com> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This change updates the "pm_nl_ctl" testing sample with a "dsf" (destroy subflow) option to support the newly added netlink interface command MPTCP_PM_CMD_SUBFLOW_DESTROY over the chosen MPTCP connection. E.g. ./pm_nl_ctl dsf lip 10.0.2.1 lport 44567 rip 10.0.2.2 rport 56789 token 823274047 Signed-off-by: Kishen Maloor --- tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 115 ++++++++++++++++++ 1 file changed, 115 insertions(+) diff --git a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c index e2437bacd133..8d74fcb04929 100644 --- a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c +++ b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c @@ -30,6 +30,7 @@ static void syntax(char *argv[]) fprintf(stderr, "\tann id token [port ] [dev ]\n"); fprintf(stderr, "\trem id token \n"); fprintf(stderr, "\tcsf lip lid rip rport token \n"); + fprintf(stderr, "\tdsf lip lport rip rport token \n"); fprintf(stderr, "\tdel []\n"); fprintf(stderr, "\tget \n"); fprintf(stderr, "\tset [] [id ] flags [no]backup|[no]fullmesh [port ]\n"); @@ -174,6 +175,118 @@ static int resolve_mptcp_pm_netlink(int fd) return genl_parse_getfamily((void *)data); } +int dsf(int fd, int pm_family, int argc, char *argv[]) +{ + char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) + + NLMSG_ALIGN(sizeof(struct genlmsghdr)) + + 1024]; + struct rtattr *rta, *addr; + u_int16_t family, port; + struct nlmsghdr *nh; + u_int32_t token; + int addr_start; + int off = 0; + int arg; + + const char *params[5]; + + memset(params, 0, 5 * sizeof(const char *)); + + memset(data, 0, sizeof(data)); + nh = (void *)data; + off = init_genl_req(data, pm_family, MPTCP_PM_CMD_SUBFLOW_DESTROY, + MPTCP_PM_VER); + + if (argc < 12) + syntax(argv); + + /* Params recorded in this order: + * , , , , + */ + for (arg = 2; arg < argc; arg++) { + if (!strcmp(argv[arg], "lip")) { + if (++arg >= argc) + error(1, 0, " missing local IP"); + + params[0] = argv[arg]; + } else if (!strcmp(argv[arg], "lport")) { + if (++arg >= argc) + error(1, 0, " missing local port"); + + params[1] = argv[arg]; + } else if (!strcmp(argv[arg], "rip")) { + if (++arg >= argc) + error(1, 0, " missing remote IP"); + + params[2] = argv[arg]; + } else if (!strcmp(argv[arg], "rport")) { + if (++arg >= argc) + error(1, 0, " missing remote port"); + + params[3] = argv[arg]; + } else if (!strcmp(argv[arg], "token")) { + if (++arg >= argc) + error(1, 0, " missing token"); + + params[4] = argv[arg]; + } else + error(1, 0, "unknown keyword %s", argv[arg]); + } + + for (arg = 0; arg < 4; arg = arg + 2) { + /* addr header */ + addr_start = off; + addr = (void *)(data + off); + addr->rta_type = NLA_F_NESTED | + ((arg == 0) ? MPTCP_PM_ATTR_ADDR : MPTCP_PM_ATTR_ADDR_REMOTE); + addr->rta_len = RTA_LENGTH(0); + off += NLMSG_ALIGN(addr->rta_len); + + /* addr data */ + rta = (void *)(data + off); + if (inet_pton(AF_INET, params[arg], RTA_DATA(rta))) { + family = AF_INET; + rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4; + rta->rta_len = RTA_LENGTH(4); + } else if (inet_pton(AF_INET6, params[arg], RTA_DATA(rta))) { + family = AF_INET6; + rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6; + rta->rta_len = RTA_LENGTH(16); + } else + error(1, errno, "can't parse ip %s", params[arg]); + off += NLMSG_ALIGN(rta->rta_len); + + /* family */ + rta = (void *)(data + off); + rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY; + rta->rta_len = RTA_LENGTH(2); + memcpy(RTA_DATA(rta), &family, 2); + off += NLMSG_ALIGN(rta->rta_len); + + /* port */ + port = atoi(params[arg + 1]); + rta = (void *)(data + off); + rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT; + rta->rta_len = RTA_LENGTH(2); + memcpy(RTA_DATA(rta), &port, 2); + off += NLMSG_ALIGN(rta->rta_len); + + addr->rta_len = off - addr_start; + } + + /* token */ + token = atoi(params[4]); + rta = (void *)(data + off); + rta->rta_type = MPTCP_PM_ATTR_TOKEN; + rta->rta_len = RTA_LENGTH(4); + memcpy(RTA_DATA(rta), &token, 4); + off += NLMSG_ALIGN(rta->rta_len); + + do_nl_req(fd, nh, off, 0); + + return 0; +} + int csf(int fd, int pm_family, int argc, char *argv[]) { char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) + @@ -1098,6 +1211,8 @@ int main(int argc, char *argv[]) return remove_addr(fd, pm_family, argc, argv); else if (!strcmp(argv[1], "csf")) return csf(fd, pm_family, argc, argv); + else if (!strcmp(argv[1], "dsf")) + return dsf(fd, pm_family, argc, argv); else if (!strcmp(argv[1], "del")) return del_addr(fd, pm_family, argc, argv); else if (!strcmp(argv[1], "flush"))