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-rw-r--r--tools/testing/selftests/net/bind_wildcard.c809
1 files changed, 809 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/bind_wildcard.c b/tools/testing/selftests/net/bind_wildcard.c
new file mode 100644
index 000000000000..b7b54d646b93
--- /dev/null
+++ b/tools/testing/selftests/net/bind_wildcard.c
@@ -0,0 +1,809 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "../kselftest_harness.h"
+
+static const __u32 in4addr_any = INADDR_ANY;
+static const __u32 in4addr_loopback = INADDR_LOOPBACK;
+static const struct in6_addr in6addr_v4mapped_any = {
+ .s6_addr = {
+ 0, 0, 0, 0,
+ 0, 0, 0, 0,
+ 0, 0, 255, 255,
+ 0, 0, 0, 0
+ }
+};
+static const struct in6_addr in6addr_v4mapped_loopback = {
+ .s6_addr = {
+ 0, 0, 0, 0,
+ 0, 0, 0, 0,
+ 0, 0, 255, 255,
+ 127, 0, 0, 1
+ }
+};
+
+#define NR_SOCKETS 8
+
+FIXTURE(bind_wildcard)
+{
+ int fd[NR_SOCKETS];
+ socklen_t addrlen[NR_SOCKETS];
+ union {
+ struct sockaddr addr;
+ struct sockaddr_in addr4;
+ struct sockaddr_in6 addr6;
+ } addr[NR_SOCKETS];
+};
+
+FIXTURE_VARIANT(bind_wildcard)
+{
+ sa_family_t family[2];
+ const void *addr[2];
+ bool ipv6_only[2];
+
+ /* 6 bind() calls below follow two bind() for the defined 2 addresses:
+ *
+ * 0.0.0.0
+ * 127.0.0.1
+ * ::
+ * ::1
+ * ::ffff:0.0.0.0
+ * ::ffff:127.0.0.1
+ */
+ int expected_errno[NR_SOCKETS];
+ int expected_reuse_errno[NR_SOCKETS];
+};
+
+/* (IPv4, IPv4) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v4_local)
+{
+ .family = {AF_INET, AF_INET},
+ .addr = {&in4addr_any, &in4addr_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v4_any)
+{
+ .family = {AF_INET, AF_INET},
+ .addr = {&in4addr_loopback, &in4addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+/* (IPv4, IPv6) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_any)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_any, &in6addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_any_only)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_any, &in6addr_any},
+ .ipv6_only = {false, true},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_local)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_any, &in6addr_loopback},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_v4mapped_any)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_any, &in6addr_v4mapped_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_v4mapped_local)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_any, &in6addr_v4mapped_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_loopback, &in6addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any_only)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_loopback, &in6addr_any},
+ .ipv6_only = {false, true},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_local)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_loopback, &in6addr_loopback},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_v4mapped_any)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_loopback, &in6addr_v4mapped_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_v4mapped_local)
+{
+ .family = {AF_INET, AF_INET6},
+ .addr = {&in4addr_loopback, &in6addr_v4mapped_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+/* (IPv6, IPv4) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v4_any)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_any, &in4addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v4_any)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_any, &in4addr_any},
+ .ipv6_only = {true, false},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v4_local)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_any, &in4addr_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v4_local)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_any, &in4addr_loopback},
+ .ipv6_only = {true, false},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v4_any)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_loopback, &in4addr_any},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v4_local)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_loopback, &in4addr_loopback},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v4_any)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_v4mapped_any, &in4addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v4_local)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_v4mapped_any, &in4addr_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_local_v4_any)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_v4mapped_loopback, &in4addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_local_v4_local)
+{
+ .family = {AF_INET6, AF_INET},
+ .addr = {&in6addr_v4mapped_loopback, &in4addr_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+/* (IPv6, IPv6) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_any},
+ .ipv6_only = {true, false},
+ .expected_errno = {0, EADDRINUSE,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_any_only)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_any},
+ .ipv6_only = {false, true},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_any_only)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_any},
+ .ipv6_only = {true, true},
+ .expected_errno = {0, EADDRINUSE,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_loopback},
+ .ipv6_only = {true, false},
+ .expected_errno = {0, EADDRINUSE,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_v4mapped_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_v4mapped_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_v4mapped_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_v4mapped_any},
+ .ipv6_only = {true, false},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_v4mapped_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_v4mapped_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_v4mapped_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_any, &in6addr_v4mapped_loopback},
+ .ipv6_only = {true, false},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_loopback, &in6addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_any_only)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_loopback, &in6addr_any},
+ .ipv6_only = {false, true},
+ .expected_errno = {0, EADDRINUSE,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ 0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_v4mapped_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_loopback, &in6addr_v4mapped_any},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_v4mapped_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_loopback, &in6addr_v4mapped_loopback},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_any, &in6addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_any_only)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_any, &in6addr_any},
+ .ipv6_only = {false, true},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_any, &in6addr_loopback},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_v4mapped_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_any, &in6addr_v4mapped_loopback},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_loopback, &in6addr_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_any_only)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_loopback, &in6addr_any},
+ .ipv6_only = {false, true},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_local)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_loopback, &in6addr_loopback},
+ .expected_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_v4mapped_any)
+{
+ .family = {AF_INET6, AF_INET6},
+ .addr = {&in6addr_v4mapped_loopback, &in6addr_v4mapped_any},
+ .expected_errno = {0, EADDRINUSE,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+ .expected_reuse_errno = {0, 0,
+ EADDRINUSE, EADDRINUSE,
+ EADDRINUSE, 0,
+ EADDRINUSE, EADDRINUSE},
+};
+
+static void setup_addr(FIXTURE_DATA(bind_wildcard) *self, int i,
+ int family, const void *addr_const)
+{
+ if (family == AF_INET) {
+ struct sockaddr_in *addr4 = &self->addr[i].addr4;
+ const __u32 *addr4_const = addr_const;
+
+ addr4->sin_family = AF_INET;
+ addr4->sin_port = htons(0);
+ addr4->sin_addr.s_addr = htonl(*addr4_const);
+
+ self->addrlen[i] = sizeof(struct sockaddr_in);
+ } else {
+ struct sockaddr_in6 *addr6 = &self->addr[i].addr6;
+ const struct in6_addr *addr6_const = addr_const;
+
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_port = htons(0);
+ addr6->sin6_addr = *addr6_const;
+
+ self->addrlen[i] = sizeof(struct sockaddr_in6);
+ }
+}
+
+FIXTURE_SETUP(bind_wildcard)
+{
+ setup_addr(self, 0, variant->family[0], variant->addr[0]);
+ setup_addr(self, 1, variant->family[1], variant->addr[1]);
+
+ setup_addr(self, 2, AF_INET, &in4addr_any);
+ setup_addr(self, 3, AF_INET, &in4addr_loopback);
+
+ setup_addr(self, 4, AF_INET6, &in6addr_any);
+ setup_addr(self, 5, AF_INET6, &in6addr_loopback);
+ setup_addr(self, 6, AF_INET6, &in6addr_v4mapped_any);
+ setup_addr(self, 7, AF_INET6, &in6addr_v4mapped_loopback);
+}
+
+FIXTURE_TEARDOWN(bind_wildcard)
+{
+ int i;
+
+ for (i = 0; i < NR_SOCKETS; i++)
+ close(self->fd[i]);
+}
+
+void bind_socket(struct __test_metadata *_metadata,
+ FIXTURE_DATA(bind_wildcard) *self,
+ const FIXTURE_VARIANT(bind_wildcard) *variant,
+ int i, int reuse)
+{
+ int ret;
+
+ self->fd[i] = socket(self->addr[i].addr.sa_family, SOCK_STREAM, 0);
+ ASSERT_GT(self->fd[i], 0);
+
+ if (i < 2 && variant->ipv6_only[i]) {
+ ret = setsockopt(self->fd[i], SOL_IPV6, IPV6_V6ONLY, &(int){1}, sizeof(int));
+ ASSERT_EQ(ret, 0);
+ }
+
+ if (i < 2 && reuse) {
+ ret = setsockopt(self->fd[i], SOL_SOCKET, reuse, &(int){1}, sizeof(int));
+ ASSERT_EQ(ret, 0);
+ }
+
+ self->addr[i].addr4.sin_port = self->addr[0].addr4.sin_port;
+
+ ret = bind(self->fd[i], &self->addr[i].addr, self->addrlen[i]);
+
+ if (reuse) {
+ if (variant->expected_reuse_errno[i]) {
+ ASSERT_EQ(ret, -1);
+ ASSERT_EQ(errno, variant->expected_reuse_errno[i]);
+ } else {
+ ASSERT_EQ(ret, 0);
+ }
+ } else {
+ if (variant->expected_errno[i]) {
+ ASSERT_EQ(ret, -1);
+ ASSERT_EQ(errno, variant->expected_errno[i]);
+ } else {
+ ASSERT_EQ(ret, 0);
+ }
+ }
+
+ if (i == 0) {
+ ret = getsockname(self->fd[0], &self->addr[0].addr, &self->addrlen[0]);
+ ASSERT_EQ(ret, 0);
+ }
+}
+
+TEST_F(bind_wildcard, plain)
+{
+ int i;
+
+ for (i = 0; i < NR_SOCKETS; i++)
+ bind_socket(_metadata, self, variant, i, 0);
+}
+
+TEST_F(bind_wildcard, reuseaddr)
+{
+ int i;
+
+ for (i = 0; i < NR_SOCKETS; i++)
+ bind_socket(_metadata, self, variant, i, SO_REUSEADDR);
+}
+
+TEST_F(bind_wildcard, reuseport)
+{
+ int i;
+
+ for (i = 0; i < NR_SOCKETS; i++)
+ bind_socket(_metadata, self, variant, i, SO_REUSEPORT);
+}
+
+TEST_HARNESS_MAIN
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.