diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/fib_lookup.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/fib_lookup.c | 83 |
1 files changed, 77 insertions, 6 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c index 2fd05649bad1..4ad4cd69152e 100644 --- a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c +++ b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c @@ -11,9 +11,13 @@ #define NS_TEST "fib_lookup_ns" #define IPV6_IFACE_ADDR "face::face" +#define IPV6_IFACE_ADDR_SEC "cafe::cafe" +#define IPV6_ADDR_DST "face::3" #define IPV6_NUD_FAILED_ADDR "face::1" #define IPV6_NUD_STALE_ADDR "face::2" #define IPV4_IFACE_ADDR "10.0.0.254" +#define IPV4_IFACE_ADDR_SEC "10.1.0.254" +#define IPV4_ADDR_DST "10.2.0.254" #define IPV4_NUD_FAILED_ADDR "10.0.0.1" #define IPV4_NUD_STALE_ADDR "10.0.0.2" #define IPV4_TBID_ADDR "172.0.0.254" @@ -31,6 +35,7 @@ struct fib_lookup_test { const char *desc; const char *daddr; int expected_ret; + const char *expected_src; int lookup_flags; __u32 tbid; __u8 dmac[6]; @@ -69,6 +74,22 @@ static const struct fib_lookup_test tests[] = { .daddr = IPV6_TBID_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, .lookup_flags = BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID, .tbid = 100, .dmac = DMAC_INIT2, }, + { .desc = "IPv4 set src addr from netdev", + .daddr = IPV4_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV4_IFACE_ADDR, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv6 set src addr from netdev", + .daddr = IPV6_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV6_IFACE_ADDR, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv4 set prefsrc addr from route", + .daddr = IPV4_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV4_IFACE_ADDR_SEC, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv6 set prefsrc addr route", + .daddr = IPV6_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV6_IFACE_ADDR_SEC, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, }; static int ifindex; @@ -97,6 +118,13 @@ static int setup_netns(void) SYS(fail, "ip neigh add %s dev veth1 nud failed", IPV4_NUD_FAILED_ADDR); SYS(fail, "ip neigh add %s dev veth1 lladdr %s nud stale", IPV4_NUD_STALE_ADDR, DMAC); + /* Setup for prefsrc IP addr selection */ + SYS(fail, "ip addr add %s/24 dev veth1", IPV4_IFACE_ADDR_SEC); + SYS(fail, "ip route add %s/32 dev veth1 src %s", IPV4_ADDR_DST, IPV4_IFACE_ADDR_SEC); + + SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_IFACE_ADDR_SEC); + SYS(fail, "ip route add %s/128 dev veth1 src %s", IPV6_ADDR_DST, IPV6_IFACE_ADDR_SEC); + /* Setup for tbid lookup tests */ SYS(fail, "ip addr add %s/24 dev veth2", IPV4_TBID_ADDR); SYS(fail, "ip route del %s/24 dev veth2", IPV4_TBID_NET); @@ -133,9 +161,12 @@ static int set_lookup_params(struct bpf_fib_lookup *params, const struct fib_loo if (inet_pton(AF_INET6, test->daddr, params->ipv6_dst) == 1) { params->family = AF_INET6; - ret = inet_pton(AF_INET6, IPV6_IFACE_ADDR, params->ipv6_src); - if (!ASSERT_EQ(ret, 1, "inet_pton(IPV6_IFACE_ADDR)")) - return -1; + if (!(test->lookup_flags & BPF_FIB_LOOKUP_SRC)) { + ret = inet_pton(AF_INET6, IPV6_IFACE_ADDR, params->ipv6_src); + if (!ASSERT_EQ(ret, 1, "inet_pton(IPV6_IFACE_ADDR)")) + return -1; + } + return 0; } @@ -143,9 +174,12 @@ static int set_lookup_params(struct bpf_fib_lookup *params, const struct fib_loo if (!ASSERT_EQ(ret, 1, "convert IP[46] address")) return -1; params->family = AF_INET; - ret = inet_pton(AF_INET, IPV4_IFACE_ADDR, ¶ms->ipv4_src); - if (!ASSERT_EQ(ret, 1, "inet_pton(IPV4_IFACE_ADDR)")) - return -1; + + if (!(test->lookup_flags & BPF_FIB_LOOKUP_SRC)) { + ret = inet_pton(AF_INET, IPV4_IFACE_ADDR, ¶ms->ipv4_src); + if (!ASSERT_EQ(ret, 1, "inet_pton(IPV4_IFACE_ADDR)")) + return -1; + } return 0; } @@ -156,6 +190,40 @@ static void mac_str(char *b, const __u8 *mac) mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); } +static void assert_src_ip(struct bpf_fib_lookup *fib_params, const char *expected_src) +{ + int ret; + __u32 src6[4]; + __be32 src4; + + switch (fib_params->family) { + case AF_INET6: + ret = inet_pton(AF_INET6, expected_src, src6); + ASSERT_EQ(ret, 1, "inet_pton(expected_src)"); + + ret = memcmp(src6, fib_params->ipv6_src, sizeof(fib_params->ipv6_src)); + if (!ASSERT_EQ(ret, 0, "fib_lookup ipv6 src")) { + char str_src6[64]; + + inet_ntop(AF_INET6, fib_params->ipv6_src, str_src6, + sizeof(str_src6)); + printf("ipv6 expected %s actual %s ", expected_src, + str_src6); + } + + break; + case AF_INET: + ret = inet_pton(AF_INET, expected_src, &src4); + ASSERT_EQ(ret, 1, "inet_pton(expected_src)"); + + ASSERT_EQ(fib_params->ipv4_src, src4, "fib_lookup ipv4 src"); + + break; + default: + PRINT_FAIL("invalid addr family: %d", fib_params->family); + } +} + void test_fib_lookup(void) { struct bpf_fib_lookup *fib_params; @@ -207,6 +275,9 @@ void test_fib_lookup(void) ASSERT_EQ(skel->bss->fib_lookup_ret, tests[i].expected_ret, "fib_lookup_ret"); + if (tests[i].expected_src) + assert_src_ip(fib_params, tests[i].expected_src); + ret = memcmp(tests[i].dmac, fib_params->dmac, sizeof(tests[i].dmac)); if (!ASSERT_EQ(ret, 0, "dmac not match")) { char expected[18], actual[18]; 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