diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/tc_links.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/tc_links.c | 87 |
1 files changed, 74 insertions, 13 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_links.c b/tools/testing/selftests/bpf/prog_tests/tc_links.c index bc9841144685..2186a24e7d8a 100644 --- a/tools/testing/selftests/bpf/prog_tests/tc_links.c +++ b/tools/testing/selftests/bpf/prog_tests/tc_links.c @@ -9,9 +9,11 @@ #define ping_cmd "ping -q -c1 -w1 127.0.0.1 > /dev/null" #include "test_tc_link.skel.h" + +#include "netlink_helpers.h" #include "tc_helpers.h" -void serial_test_tc_links_basic(void) +void test_ns_tc_links_basic(void) { LIBBPF_OPTS(bpf_prog_query_opts, optq); LIBBPF_OPTS(bpf_tcx_opts, optl); @@ -258,7 +260,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_before(void) +void test_ns_tc_links_before(void) { test_tc_links_before_target(BPF_TCX_INGRESS); test_tc_links_before_target(BPF_TCX_EGRESS); @@ -412,7 +414,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_after(void) +void test_ns_tc_links_after(void) { test_tc_links_after_target(BPF_TCX_INGRESS); test_tc_links_after_target(BPF_TCX_EGRESS); @@ -512,7 +514,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_revision(void) +void test_ns_tc_links_revision(void) { test_tc_links_revision_target(BPF_TCX_INGRESS); test_tc_links_revision_target(BPF_TCX_EGRESS); @@ -616,7 +618,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_chain_classic(void) +void test_ns_tc_links_chain_classic(void) { test_tc_chain_classic(BPF_TCX_INGRESS, false); test_tc_chain_classic(BPF_TCX_EGRESS, false); @@ -844,7 +846,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_replace(void) +void test_ns_tc_links_replace(void) { test_tc_links_replace_target(BPF_TCX_INGRESS); test_tc_links_replace_target(BPF_TCX_EGRESS); @@ -1156,7 +1158,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_invalid(void) +void test_ns_tc_links_invalid(void) { test_tc_links_invalid_target(BPF_TCX_INGRESS); test_tc_links_invalid_target(BPF_TCX_EGRESS); @@ -1312,7 +1314,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_prepend(void) +void test_ns_tc_links_prepend(void) { test_tc_links_prepend_target(BPF_TCX_INGRESS); test_tc_links_prepend_target(BPF_TCX_EGRESS); @@ -1468,7 +1470,7 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_append(void) +void test_ns_tc_links_append(void) { test_tc_links_append_target(BPF_TCX_INGRESS); test_tc_links_append_target(BPF_TCX_EGRESS); @@ -1566,7 +1568,7 @@ cleanup: ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed"); } -void serial_test_tc_links_dev_cleanup(void) +void test_ns_tc_links_dev_cleanup(void) { test_tc_links_dev_cleanup_target(BPF_TCX_INGRESS); test_tc_links_dev_cleanup_target(BPF_TCX_EGRESS); @@ -1670,7 +1672,7 @@ cleanup: test_tc_link__destroy(skel); } -void serial_test_tc_links_chain_mixed(void) +void test_ns_tc_links_chain_mixed(void) { test_tc_chain_mixed(BPF_TCX_INGRESS); test_tc_chain_mixed(BPF_TCX_EGRESS); @@ -1780,13 +1782,72 @@ cleanup: assert_mprog_count(target, 0); } -void serial_test_tc_links_ingress(void) +void test_ns_tc_links_ingress(void) { test_tc_links_ingress(BPF_TCX_INGRESS, true, true); test_tc_links_ingress(BPF_TCX_INGRESS, true, false); test_tc_links_ingress(BPF_TCX_INGRESS, false, false); } +struct qdisc_req { + struct nlmsghdr n; + struct tcmsg t; + char buf[1024]; +}; + +static int qdisc_replace(int ifindex, const char *kind, bool block) +{ + struct rtnl_handle rth = { .fd = -1 }; + struct qdisc_req req; + int err; + + err = rtnl_open(&rth, 0); + if (!ASSERT_OK(err, "open_rtnetlink")) + return err; + + memset(&req, 0, sizeof(req)); + req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)); + req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST; + req.n.nlmsg_type = RTM_NEWQDISC; + req.t.tcm_family = AF_UNSPEC; + req.t.tcm_ifindex = ifindex; + req.t.tcm_parent = 0xfffffff1; + + addattr_l(&req.n, sizeof(req), TCA_KIND, kind, strlen(kind) + 1); + if (block) + addattr32(&req.n, sizeof(req), TCA_INGRESS_BLOCK, 1); + + err = rtnl_talk(&rth, &req.n, NULL); + ASSERT_OK(err, "talk_rtnetlink"); + rtnl_close(&rth); + return err; +} + +void test_ns_tc_links_dev_chain0(void) +{ + int err, ifindex; + + ASSERT_OK(system("ip link add dev foo type veth peer name bar"), "add veth"); + ifindex = if_nametoindex("foo"); + ASSERT_NEQ(ifindex, 0, "non_zero_ifindex"); + err = qdisc_replace(ifindex, "ingress", true); + if (!ASSERT_OK(err, "attaching ingress")) + goto cleanup; + ASSERT_OK(system("tc filter add block 1 matchall action skbmod swap mac"), "add block"); + err = qdisc_replace(ifindex, "clsact", false); + if (!ASSERT_OK(err, "attaching clsact")) + goto cleanup; + /* Heuristic: kern_sync_rcu() alone does not work; a wait-time of ~5s + * triggered the issue without the fix reliably 100% of the time. + */ + sleep(5); + ASSERT_OK(system("tc filter add dev foo ingress matchall action skbmod swap mac"), "add filter"); +cleanup: + ASSERT_OK(system("ip link del dev foo"), "del veth"); + ASSERT_EQ(if_nametoindex("foo"), 0, "foo removed"); + ASSERT_EQ(if_nametoindex("bar"), 0, "bar removed"); +} + static void test_tc_links_dev_mixed(int target) { LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1); @@ -1894,7 +1955,7 @@ cleanup: ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed"); } -void serial_test_tc_links_dev_mixed(void) +void test_ns_tc_links_dev_mixed(void) { test_tc_links_dev_mixed(BPF_TCX_INGRESS); test_tc_links_dev_mixed(BPF_TCX_EGRESS); |