From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8B95131691C for ; Fri, 6 Mar 2026 02:09:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772762963; cv=none; b=KQn7ByL6gK6VaMdBApdWNhmZSAsdDBprWEh9HKnfXv2331wBo8FWQ74p0n5h4+g+3lRSuQyIyPq2ha9D4QAnN1UGMIKzG/dIKj8Obhi8+21S9hCEeo5ZpfjMEZHW2H2RBGGJnO/XmpDSzRj/8PE6bQ9wFMJjU0xhTyMWQQSodjw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772762963; c=relaxed/simple; bh=nXUcN5X+cKe56hrkjy5euSUQHG28cFoJC73XBJePk+w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=b6UFVpywCe/TplJ4RmTpV4rNmLB+U45ylREhkMsvi/MtGXnUNRY8KXQXnfUYy71kgWXQWGxWy5bqDFXzB2yCgqChOSUtCQOPu7JetMsVtuy8uMIv+jE9IrlIPU0ho1F9EXF/iiQGC4XzHmXEoRDt2UZbiflWk6JYJb6M4eCGn8A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FJROGz6N; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FJROGz6N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F3ED2C2BCB0; Fri, 6 Mar 2026 02:09:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772762963; bh=nXUcN5X+cKe56hrkjy5euSUQHG28cFoJC73XBJePk+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FJROGz6NBsouS063KR07hHb270V3WXzLgUbiOUs62gQacyw+xB0l2s7m/bN6xpoui NXPfRmLR+FMPEXm3qRl9pYtwEjWGJoHM6MSPQ4wn9zGQxEXfPFgWGgAQpVfhJMB60F Udv6QuJ1qqdILnncdfmvN10/XvxV4iU6YFlpqInyDEypQZJHvEwi0TSXvjb338UtxR qZTmC8qsyOMwg7TU6YHBlyKP2N2WvGbZa9zxowomTDAH2yHuRSZ9vXw3AAEwXj3qfH 4hQEQg7enEPRVyvtTqByJuYW7s2lggPawoGpfeiTWZ6/JFgb1hAWCLISUyHqcsu82T m4q9/KlvCgh2Q== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, donald.hunter@gmail.com, liuhangbin@gmail.com, matttbe@kernel.org, Jakub Kicinski Subject: [PATCH net-next 04/10] tools: ynl: convert rt-link sample to selftest Date: Thu, 5 Mar 2026 18:08:55 -0800 Message-ID: <20260306020901.524105-5-kuba@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260306020901.524105-1-kuba@kernel.org> References: <20260306020901.524105-1-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Convert rt-link.c to use kselftest_harness.h with FIXTURE/TEST_F. Move rt-link from BINS to TEST_GEN_PROGS. Output: TAP version 13 1..3 # Starting 3 tests from 1 test cases. # RUN rt_link.dump ... # 1: lo: mtu 65536 # 2: sit0: mtu 1480 kind sit # OK rt_link.dump ok 1 rt_link.dump # RUN rt_link.netkit ... # 4: nk1: mtu 1500 kind netkit primary 1 policy blackhole # OK rt_link.netkit ok 2 rt_link.netkit # RUN rt_link.netkit_err_msg ... # OK rt_link.netkit_err_msg ok 3 rt_link.netkit_err_msg # PASSED: 3 / 3 tests passed. # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Jakub Kicinski --- tools/net/ynl/tests/Makefile | 2 +- tools/net/ynl/tests/rt-link.c | 192 +++++++++++++++++++--------------- tools/net/ynl/tests/config | 1 + 3 files changed, 108 insertions(+), 87 deletions(-) diff --git a/tools/net/ynl/tests/Makefile b/tools/net/ynl/tests/Makefile index df9d37c8b2a4..08d1146d91ce 100644 --- a/tools/net/ynl/tests/Makefile +++ b/tools/net/ynl/tests/Makefile @@ -21,13 +21,13 @@ TEST_PROGS := \ TEST_GEN_PROGS := \ netdev \ ovs \ + rt-link \ # end of TEST_GEN_PROGS BINS := \ devlink \ ethtool \ rt-addr \ - rt-link \ rt-route \ tc \ tc-filter-add \ diff --git a/tools/net/ynl/tests/rt-link.c b/tools/net/ynl/tests/rt-link.c index acdd4b4a0f74..a55f7523dbe8 100644 --- a/tools/net/ynl/tests/rt-link.c +++ b/tools/net/ynl/tests/rt-link.c @@ -7,16 +7,21 @@ #include #include +#include + #include "rt-link-user.h" -static void rt_link_print(struct rt_link_getlink_rsp *r) +static void rt_link_print(struct __test_metadata *_metadata, + struct rt_link_getlink_rsp *r) { unsigned int i; - printf("%3d: ", r->_hdr.ifi_index); + EXPECT_TRUE((bool)r->_hdr.ifi_index); + ksft_print_msg("%3d: ", r->_hdr.ifi_index); + EXPECT_TRUE((bool)r->_len.ifname); if (r->_len.ifname) - printf("%16s: ", r->ifname); + printf("%6s: ", r->ifname); if (r->_present.mtu) printf("mtu %5d ", r->mtu); @@ -50,7 +55,7 @@ static void rt_link_print(struct rt_link_getlink_rsp *r) printf("\n"); } -static int rt_link_create_netkit(struct ynl_sock *ys) +static int netkit_create(struct ynl_sock *ys) { struct rt_link_getlink_ntf *ntf_gl; struct rt_link_newlink_req *req; @@ -58,49 +63,24 @@ static int rt_link_create_netkit(struct ynl_sock *ys) int ret; req = rt_link_newlink_req_alloc(); - if (!req) { - fprintf(stderr, "Can't alloc req\n"); + if (!req) return -1; - } - /* rtnetlink doesn't provide info about the created object. - * It expects us to set the ECHO flag and the dig the info out - * of the notifications... - */ rt_link_newlink_req_set_nlflags(req, NLM_F_CREATE | NLM_F_ECHO); - rt_link_newlink_req_set_linkinfo_kind(req, "netkit"); - - /* Test error messages */ - rt_link_newlink_req_set_linkinfo_data_netkit_policy(req, 10); - ret = rt_link_newlink(ys, req); - if (ret) { - printf("Testing error message for policy being bad:\n\t%s\n", ys->err.msg); - } else { - fprintf(stderr, "Warning: unexpected success creating netkit with bad attrs\n"); - goto created; - } - rt_link_newlink_req_set_linkinfo_data_netkit_policy(req, NETKIT_DROP); ret = rt_link_newlink(ys, req); -created: rt_link_newlink_req_free(req); - if (ret) { - fprintf(stderr, "YNL: %s\n", ys->err.msg); + if (ret) return -1; - } - if (!ynl_has_ntf(ys)) { - fprintf(stderr, - "Warning: interface created but received no notification, won't delete the interface\n"); + if (!ynl_has_ntf(ys)) return 0; - } ntf = ynl_ntf_dequeue(ys); - if (ntf->cmd != RTM_NEWLINK) { - fprintf(stderr, - "Warning: unexpected notification type, won't delete the interface\n"); + if (!ntf || ntf->cmd != RTM_NEWLINK) { + ynl_ntf_free(ntf); return 0; } ntf_gl = (void *)ntf; @@ -110,75 +90,115 @@ static int rt_link_create_netkit(struct ynl_sock *ys) return ret; } -static void rt_link_del(struct ynl_sock *ys, int ifindex) +static void netkit_delete(struct __test_metadata *_metadata, + struct ynl_sock *ys, int ifindex) { struct rt_link_dellink_req *req; req = rt_link_dellink_req_alloc(); - if (!req) { - fprintf(stderr, "Can't alloc req\n"); + if (!req) return; - } req->_hdr.ifi_index = ifindex; - if (rt_link_dellink(ys, req)) - fprintf(stderr, "YNL: %s\n", ys->err.msg); - else - fprintf(stderr, - "Trying to delete a Netkit interface (ifindex %d)\n", - ifindex); - + EXPECT_EQ(0, rt_link_dellink(ys, req)); rt_link_dellink_req_free(req); } -int main(int argc, char **argv) +FIXTURE(rt_link) +{ + struct ynl_sock *ys; +}; + +FIXTURE_SETUP(rt_link) +{ + struct ynl_error yerr; + + self->ys = ynl_sock_create(&ynl_rt_link_family, &yerr); + ASSERT_NE(NULL, self->ys) { + TH_LOG("failed to create rt-link socket: %s", yerr.msg); + } +} + +FIXTURE_TEARDOWN(rt_link) +{ + ynl_sock_destroy(self->ys); +} + +TEST_F(rt_link, dump) { struct rt_link_getlink_req_dump *req; struct rt_link_getlink_list *rsp; - struct ynl_error yerr; - struct ynl_sock *ys; - int created = 0; - - ys = ynl_sock_create(&ynl_rt_link_family, &yerr); - if (!ys) { - fprintf(stderr, "YNL: %s\n", yerr.msg); - return 1; - } - - if (argc > 1) { - fprintf(stderr, "Trying to create a Netkit interface\n"); - created = rt_link_create_netkit(ys); - if (created < 0) - goto err_destroy; - } req = rt_link_getlink_req_dump_alloc(); - if (!req) - goto err_del_ifc; - - rsp = rt_link_getlink_dump(ys, req); + rsp = rt_link_getlink_dump(self->ys, req); rt_link_getlink_req_dump_free(req); - if (!rsp) - goto err_close; + ASSERT_NE(NULL, rsp) { + TH_LOG("dump failed: %s", self->ys->err.msg); + } + ASSERT_FALSE(ynl_dump_empty(rsp)); - if (ynl_dump_empty(rsp)) - fprintf(stderr, "Error: no links reported\n"); ynl_dump_foreach(rsp, link) - rt_link_print(link); + rt_link_print(_metadata, link); + rt_link_getlink_list_free(rsp); - - if (created) - rt_link_del(ys, created); - - ynl_sock_destroy(ys); - return 0; - -err_close: - fprintf(stderr, "YNL: %s\n", ys->err.msg); -err_del_ifc: - if (created) - rt_link_del(ys, created); -err_destroy: - ynl_sock_destroy(ys); - return 2; } + +TEST_F(rt_link, netkit) +{ + struct rt_link_getlink_req_dump *dreq; + struct rt_link_getlink_list *rsp; + bool found = false; + int netkit_ifindex; + + /* Create netkit with valid policy */ + netkit_ifindex = netkit_create(self->ys); + ASSERT_GT(netkit_ifindex, 0) + TH_LOG("failed to create netkit: %s", self->ys->err.msg); + + /* Verify it appears in a dump */ + dreq = rt_link_getlink_req_dump_alloc(); + rsp = rt_link_getlink_dump(self->ys, dreq); + rt_link_getlink_req_dump_free(dreq); + ASSERT_NE(NULL, rsp) { + TH_LOG("dump failed: %s", self->ys->err.msg); + } + + ynl_dump_foreach(rsp, link) { + if (link->_hdr.ifi_index == netkit_ifindex) { + rt_link_print(_metadata, link); + found = true; + } + } + rt_link_getlink_list_free(rsp); + EXPECT_TRUE(found); + + netkit_delete(_metadata, self->ys, netkit_ifindex); +} + +TEST_F(rt_link, netkit_err_msg) +{ + struct rt_link_newlink_req *req; + int ret; + + /* Test creating netkit with bad policy - should fail */ + req = rt_link_newlink_req_alloc(); + rt_link_newlink_req_set_nlflags(req, NLM_F_CREATE); + rt_link_newlink_req_set_linkinfo_kind(req, "netkit"); + rt_link_newlink_req_set_linkinfo_data_netkit_policy(req, 10); + + ret = rt_link_newlink(self->ys, req); + rt_link_newlink_req_free(req); + EXPECT_NE(0, ret) { + TH_LOG("creating netkit with bad policy should fail"); + } + + /* Expect: + * Kernel error: 'Provided default xmit policy not supported' (bad attribute: .linkinfo.data(netkit).policy) + */ + EXPECT_NE(NULL, strstr(self->ys->err.msg, "bad attribute: .linkinfo.data(netkit).policy")) { + TH_LOG("expected extack msg not found: %s", + self->ys->err.msg); + } +} + +TEST_HARNESS_MAIN diff --git a/tools/net/ynl/tests/config b/tools/net/ynl/tests/config index 357b34611da4..b4c58d86a6c2 100644 --- a/tools/net/ynl/tests/config +++ b/tools/net/ynl/tests/config @@ -3,5 +3,6 @@ CONFIG_INET_DIAG=y CONFIG_IPV6=y CONFIG_NET_NS=y CONFIG_NETDEVSIM=m +CONFIG_NETKIT=y CONFIG_OPENVSWITCH=m CONFIG_VETH=m -- 2.53.0