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-rw-r--r--src/test/test-socket-util.c832
1 files changed, 832 insertions, 0 deletions
diff --git a/src/test/test-socket-util.c b/src/test/test-socket-util.c
new file mode 100644
index 0000000..07ff487
--- /dev/null
+++ b/src/test/test-socket-util.c
@@ -0,0 +1,832 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <grp.h>
+
+#include "alloc-util.h"
+#include "async.h"
+#include "escape.h"
+#include "exit-status.h"
+#include "fd-util.h"
+#include "in-addr-util.h"
+#include "io-util.h"
+#include "log.h"
+#include "macro.h"
+#include "missing_network.h"
+#include "process-util.h"
+#include "socket-util.h"
+#include "string-util.h"
+#include "tests.h"
+#include "tmpfile-util.h"
+#include "util.h"
+
+static void test_ifname_valid(void) {
+ log_info("/* %s */", __func__);
+
+ assert(ifname_valid("foo"));
+ assert(ifname_valid("eth0"));
+
+ assert(!ifname_valid("0"));
+ assert(!ifname_valid("99"));
+ assert(ifname_valid("a99"));
+ assert(ifname_valid("99a"));
+
+ assert(!ifname_valid(NULL));
+ assert(!ifname_valid(""));
+ assert(!ifname_valid(" "));
+ assert(!ifname_valid(" foo"));
+ assert(!ifname_valid("bar\n"));
+ assert(!ifname_valid("."));
+ assert(!ifname_valid(".."));
+ assert(ifname_valid("foo.bar"));
+ assert(!ifname_valid("x:y"));
+
+ assert(ifname_valid("xxxxxxxxxxxxxxx"));
+ assert(!ifname_valid("xxxxxxxxxxxxxxxx"));
+}
+
+static void test_socket_address_parse_one(const char *in, int ret, int family, const char *expected) {
+ SocketAddress a;
+ _cleanup_free_ char *out = NULL;
+ int r;
+
+ r = socket_address_parse(&a, in);
+ if (r >= 0)
+ assert_se(socket_address_print(&a, &out) >= 0);
+
+ log_info("\"%s\" → %s → \"%s\" (expect \"%s\")", in,
+ r >= 0 ? "✓" : "✗", empty_to_dash(out), r >= 0 ? expected ?: in : "-");
+ assert_se(r == ret);
+ if (r >= 0) {
+ assert_se(a.sockaddr.sa.sa_family == family);
+ assert_se(streq(out, expected ?: in));
+ }
+}
+
+#define SUN_PATH_LEN (sizeof(((struct sockaddr_un){}).sun_path))
+assert_cc(sizeof(((struct sockaddr_un){}).sun_path) == 108);
+
+static void test_socket_address_parse(void) {
+ log_info("/* %s */", __func__);
+
+ test_socket_address_parse_one("junk", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("192.168.1.1", -EINVAL, 0, NULL);
+ test_socket_address_parse_one(".168.1.1", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("989.168.1.1", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("192.168.1.1:65536", -ERANGE, 0, NULL);
+ test_socket_address_parse_one("192.168.1.1:0", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("0", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("65536", -ERANGE, 0, NULL);
+
+ const int default_family = socket_ipv6_is_supported() ? AF_INET6 : AF_INET;
+
+ test_socket_address_parse_one("65535", 0, default_family, "[::]:65535");
+
+ /* The checks below will pass even if ipv6 is disabled in
+ * kernel. The underlying glibc's inet_pton() is just a string
+ * parser and doesn't make any syscalls. */
+
+ test_socket_address_parse_one("[::1]", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("[::1]8888", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("::1", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("[::1]:0", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("[::1]:65536", -ERANGE, 0, NULL);
+ test_socket_address_parse_one("[a:b:1]:8888", -EINVAL, 0, NULL);
+
+ test_socket_address_parse_one("8888", 0, default_family, "[::]:8888");
+ test_socket_address_parse_one("[2001:0db8:0000:85a3:0000:0000:ac1f:8001]:8888", 0, AF_INET6,
+ "[2001:db8:0:85a3::ac1f:8001]:8888");
+ test_socket_address_parse_one("[::1]:8888", 0, AF_INET6, NULL);
+ test_socket_address_parse_one("192.168.1.254:8888", 0, AF_INET, NULL);
+ test_socket_address_parse_one("/foo/bar", 0, AF_UNIX, NULL);
+ test_socket_address_parse_one("/", 0, AF_UNIX, NULL);
+ test_socket_address_parse_one("@abstract", 0, AF_UNIX, NULL);
+
+ {
+ char aaa[SUN_PATH_LEN + 1] = "@";
+
+ memset(aaa + 1, 'a', SUN_PATH_LEN - 1);
+ char_array_0(aaa);
+
+ test_socket_address_parse_one(aaa, -EINVAL, 0, NULL);
+
+ aaa[SUN_PATH_LEN - 1] = '\0';
+ test_socket_address_parse_one(aaa, 0, AF_UNIX, NULL);
+ }
+
+ test_socket_address_parse_one("vsock:2:1234", 0, AF_VSOCK, NULL);
+ test_socket_address_parse_one("vsock::1234", 0, AF_VSOCK, NULL);
+ test_socket_address_parse_one("vsock:2:1234x", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("vsock:2x:1234", -EINVAL, 0, NULL);
+ test_socket_address_parse_one("vsock:2", -EINVAL, 0, NULL);
+}
+
+static void test_socket_print_unix_one(const char *in, size_t len_in, const char *expected) {
+ _cleanup_free_ char *out = NULL, *c = NULL;
+
+ SocketAddress a = { .sockaddr = { .un = { .sun_family = AF_UNIX } },
+ .size = offsetof(struct sockaddr_un, sun_path) + len_in,
+ .type = SOCK_STREAM,
+ };
+ memcpy(a.sockaddr.un.sun_path, in, len_in);
+
+ assert_se(socket_address_print(&a, &out) >= 0);
+ assert_se(c = cescape(in));
+ log_info("\"%s\" → \"%s\" (expect \"%s\")", in, out, expected);
+ assert_se(streq(out, expected));
+}
+
+static void test_socket_print_unix(void) {
+ log_info("/* %s */", __func__);
+
+ /* Some additional tests for abstract addresses which we don't parse */
+
+ test_socket_print_unix_one("\0\0\0\0", 4, "@\\000\\000\\000");
+ test_socket_print_unix_one("@abs", 5, "@abs");
+ test_socket_print_unix_one("\n", 2, "\\n");
+ test_socket_print_unix_one("", 1, "<unnamed>");
+ test_socket_print_unix_one("\0", 1, "<unnamed>");
+ test_socket_print_unix_one("\0_________________________there's 108 characters in this string_____________________________________________", 108,
+ "@_________________________there\\'s 108 characters in this string_____________________________________________");
+ test_socket_print_unix_one("////////////////////////////////////////////////////////////////////////////////////////////////////////////", 108,
+ "////////////////////////////////////////////////////////////////////////////////////////////////////////////");
+ test_socket_print_unix_one("////////////////////////////////////////////////////////////////////////////////////////////////////////////", 109,
+ "////////////////////////////////////////////////////////////////////////////////////////////////////////////");
+ test_socket_print_unix_one("\0\a\b\n\255", 6, "@\\a\\b\\n\\255\\000");
+}
+
+static void test_socket_address_parse_netlink(void) {
+ SocketAddress a;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socket_address_parse_netlink(&a, "junk") < 0);
+ assert_se(socket_address_parse_netlink(&a, "") < 0);
+
+ assert_se(socket_address_parse_netlink(&a, "route") >= 0);
+ assert_se(socket_address_parse_netlink(&a, "route 10") >= 0);
+ assert_se(a.sockaddr.sa.sa_family == AF_NETLINK);
+ assert_se(a.protocol == NETLINK_ROUTE);
+
+ /* With spaces and tabs */
+ assert_se(socket_address_parse_netlink(&a, " kobject-uevent ") >= 0);
+ assert_se(socket_address_parse_netlink(&a, " \t kobject-uevent \t 10 \t") >= 0);
+ assert_se(a.sockaddr.sa.sa_family == AF_NETLINK);
+ assert_se(a.protocol == NETLINK_KOBJECT_UEVENT);
+
+ assert_se(socket_address_parse_netlink(&a, "kobject-uevent\t10") >= 0);
+ assert_se(a.sockaddr.sa.sa_family == AF_NETLINK);
+ assert_se(a.protocol == NETLINK_KOBJECT_UEVENT);
+
+ /* oss-fuzz #6884 */
+ assert_se(socket_address_parse_netlink(&a, "\xff") < 0);
+}
+
+static void test_socket_address_equal(void) {
+ SocketAddress a, b;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_parse(&b, "192.168.1.1:888") >= 0);
+ assert_se(!socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_parse(&b, "192.16.1.1:8888") >= 0);
+ assert_se(!socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_parse(&b, "8888") >= 0);
+ assert_se(!socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_parse(&b, "/foo/bar/") >= 0);
+ assert_se(!socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_parse(&b, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "/foo/bar") >= 0);
+ assert_se(socket_address_parse(&b, "/foo/bar") >= 0);
+ assert_se(socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "[::1]:8888") >= 0);
+ assert_se(socket_address_parse(&b, "[::1]:8888") >= 0);
+ assert_se(socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "@abstract") >= 0);
+ assert_se(socket_address_parse(&b, "@abstract") >= 0);
+ assert_se(socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse_netlink(&a, "firewall") >= 0);
+ assert_se(socket_address_parse_netlink(&b, "firewall") >= 0);
+ assert_se(socket_address_equal(&a, &b));
+
+ assert_se(socket_address_parse(&a, "vsock:2:1234") >= 0);
+ assert_se(socket_address_parse(&b, "vsock:2:1234") >= 0);
+ assert_se(socket_address_equal(&a, &b));
+ assert_se(socket_address_parse(&b, "vsock:2:1235") >= 0);
+ assert_se(!socket_address_equal(&a, &b));
+ assert_se(socket_address_parse(&b, "vsock:3:1234") >= 0);
+ assert_se(!socket_address_equal(&a, &b));
+}
+
+static void test_socket_address_get_path(void) {
+ SocketAddress a;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(!socket_address_get_path(&a));
+
+ assert_se(socket_address_parse(&a, "@abstract") >= 0);
+ assert_se(!socket_address_get_path(&a));
+
+ assert_se(socket_address_parse(&a, "[::1]:8888") >= 0);
+ assert_se(!socket_address_get_path(&a));
+
+ assert_se(socket_address_parse(&a, "/foo/bar") >= 0);
+ assert_se(streq(socket_address_get_path(&a), "/foo/bar"));
+
+ assert_se(socket_address_parse(&a, "vsock:2:1234") >= 0);
+ assert_se(!socket_address_get_path(&a));
+}
+
+static void test_socket_address_is(void) {
+ SocketAddress a;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0);
+ assert_se(socket_address_is(&a, "192.168.1.1:8888", SOCK_STREAM));
+ assert_se(!socket_address_is(&a, "route", SOCK_STREAM));
+ assert_se(!socket_address_is(&a, "192.168.1.1:8888", SOCK_RAW));
+}
+
+static void test_socket_address_is_netlink(void) {
+ SocketAddress a;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socket_address_parse_netlink(&a, "route 10") >= 0);
+ assert_se(socket_address_is_netlink(&a, "route 10"));
+ assert_se(!socket_address_is_netlink(&a, "192.168.1.1:8888"));
+ assert_se(!socket_address_is_netlink(&a, "route 1"));
+}
+
+static void test_in_addr_is_null(void) {
+ union in_addr_union i = {};
+
+ log_info("/* %s */", __func__);
+
+ assert_se(in_addr_is_null(AF_INET, &i) == true);
+ assert_se(in_addr_is_null(AF_INET6, &i) == true);
+
+ i.in.s_addr = 0x1000000;
+ assert_se(in_addr_is_null(AF_INET, &i) == false);
+ assert_se(in_addr_is_null(AF_INET6, &i) == false);
+
+ assert_se(in_addr_is_null(-1, &i) == -EAFNOSUPPORT);
+}
+
+static void test_in_addr_prefix_intersect_one(unsigned f, const char *a, unsigned apl, const char *b, unsigned bpl, int result) {
+ union in_addr_union ua, ub;
+
+ assert_se(in_addr_from_string(f, a, &ua) >= 0);
+ assert_se(in_addr_from_string(f, b, &ub) >= 0);
+
+ assert_se(in_addr_prefix_intersect(f, &ua, apl, &ub, bpl) == result);
+}
+
+static void test_in_addr_prefix_intersect(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 32, "255.255.255.254", 32, 0);
+ test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 0, "255.255.255.255", 32, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "0.0.0.0", 0, "47.11.8.15", 32, 1);
+
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.1", 24, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "2.2.2.2", 24, "1.1.1.1", 24, 0);
+
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 25, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 26, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.127", 25, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.255", 25, 0);
+
+ test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe", 128, 0);
+ test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "::", 0, "beef:beef:beef:beef:beef:beef:beef:beef", 128, 1);
+
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::2", 64, "1::2", 64, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "2::2", 64, "1::2", 64, 0);
+
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 121, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 122, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::007f", 121, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::00ff", 121, 0);
+}
+
+static void test_in_addr_prefix_next_one(unsigned f, const char *before, unsigned pl, const char *after) {
+ union in_addr_union ubefore, uafter, t;
+
+ assert_se(in_addr_from_string(f, before, &ubefore) >= 0);
+
+ t = ubefore;
+ assert_se((in_addr_prefix_next(f, &t, pl) > 0) == !!after);
+
+ if (after) {
+ assert_se(in_addr_from_string(f, after, &uafter) >= 0);
+ assert_se(in_addr_equal(f, &t, &uafter) > 0);
+ }
+}
+
+static void test_in_addr_prefix_next(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 24, "192.168.1.0");
+ test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 16, "192.169.0.0");
+ test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 20, "192.168.16.0");
+
+ test_in_addr_prefix_next_one(AF_INET, "0.0.0.0", 32, "0.0.0.1");
+ test_in_addr_prefix_next_one(AF_INET, "255.255.255.255", 32, NULL);
+ test_in_addr_prefix_next_one(AF_INET, "255.255.255.0", 24, NULL);
+
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 128, "4400::0001");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 120, "4400::0100");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 127, "4400::0002");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 8, "4500::");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 7, "4600::");
+
+ test_in_addr_prefix_next_one(AF_INET6, "::", 128, "::1");
+
+ test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, NULL);
+ test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00", 120, NULL);
+}
+
+static void test_in_addr_to_string_one(int f, const char *addr) {
+ union in_addr_union ua;
+ _cleanup_free_ char *r = NULL;
+
+ assert_se(in_addr_from_string(f, addr, &ua) >= 0);
+ assert_se(in_addr_to_string(f, &ua, &r) >= 0);
+ printf("test_in_addr_to_string_one: %s == %s\n", addr, r);
+ assert_se(streq(addr, r));
+}
+
+static void test_in_addr_to_string(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_to_string_one(AF_INET, "192.168.0.1");
+ test_in_addr_to_string_one(AF_INET, "10.11.12.13");
+ test_in_addr_to_string_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
+ test_in_addr_to_string_one(AF_INET6, "::1");
+ test_in_addr_to_string_one(AF_INET6, "fe80::");
+}
+
+static void test_in_addr_ifindex_to_string_one(int f, const char *a, int ifindex, const char *b) {
+ _cleanup_free_ char *r = NULL;
+ union in_addr_union ua, uuaa;
+ int ff, ifindex2;
+
+ assert_se(in_addr_from_string(f, a, &ua) >= 0);
+ assert_se(in_addr_ifindex_to_string(f, &ua, ifindex, &r) >= 0);
+ printf("test_in_addr_ifindex_to_string_one: %s == %s\n", b, r);
+ assert_se(streq(b, r));
+
+ assert_se(in_addr_ifindex_from_string_auto(b, &ff, &uuaa, &ifindex2) >= 0);
+ assert_se(ff == f);
+ assert_se(in_addr_equal(f, &ua, &uuaa));
+ assert_se(ifindex2 == ifindex || ifindex2 == 0);
+}
+
+static void test_in_addr_ifindex_to_string(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_ifindex_to_string_one(AF_INET, "192.168.0.1", 7, "192.168.0.1");
+ test_in_addr_ifindex_to_string_one(AF_INET, "10.11.12.13", 9, "10.11.12.13");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 10, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "::1", 11, "::1");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::", 12, "fe80::%12");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::", 0, "fe80::");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::14", 12, "fe80::14%12");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::15", -7, "fe80::15");
+ test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::16", LOOPBACK_IFINDEX, "fe80::16%1");
+}
+
+static void test_in_addr_ifindex_from_string_auto(void) {
+ int family, ifindex;
+ union in_addr_union ua;
+
+ log_info("/* %s */", __func__);
+ /* Most in_addr_ifindex_from_string_auto() invocations have already been tested above, but let's test some more */
+
+ assert_se(in_addr_ifindex_from_string_auto("fe80::17", &family, &ua, &ifindex) >= 0);
+ assert_se(family == AF_INET6);
+ assert_se(ifindex == 0);
+
+ assert_se(in_addr_ifindex_from_string_auto("fe80::18%19", &family, &ua, &ifindex) >= 0);
+ assert_se(family == AF_INET6);
+ assert_se(ifindex == 19);
+
+ assert_se(in_addr_ifindex_from_string_auto("fe80::18%lo", &family, &ua, &ifindex) >= 0);
+ assert_se(family == AF_INET6);
+ assert_se(ifindex == LOOPBACK_IFINDEX);
+
+ assert_se(in_addr_ifindex_from_string_auto("fe80::19%thisinterfacecantexist", &family, &ua, &ifindex) == -ENODEV);
+}
+
+static void test_sockaddr_equal(void) {
+ union sockaddr_union a = {
+ .in.sin_family = AF_INET,
+ .in.sin_port = 0,
+ .in.sin_addr.s_addr = htobe32(INADDR_ANY),
+ };
+ union sockaddr_union b = {
+ .in.sin_family = AF_INET,
+ .in.sin_port = 0,
+ .in.sin_addr.s_addr = htobe32(INADDR_ANY),
+ };
+ union sockaddr_union c = {
+ .in.sin_family = AF_INET,
+ .in.sin_port = 0,
+ .in.sin_addr.s_addr = htobe32(1234),
+ };
+ union sockaddr_union d = {
+ .in6.sin6_family = AF_INET6,
+ .in6.sin6_port = 0,
+ .in6.sin6_addr = IN6ADDR_ANY_INIT,
+ };
+ union sockaddr_union e = {
+ .vm.svm_family = AF_VSOCK,
+ .vm.svm_port = 0,
+ .vm.svm_cid = VMADDR_CID_ANY,
+ };
+
+ log_info("/* %s */", __func__);
+
+ assert_se(sockaddr_equal(&a, &a));
+ assert_se(sockaddr_equal(&a, &b));
+ assert_se(sockaddr_equal(&d, &d));
+ assert_se(sockaddr_equal(&e, &e));
+ assert_se(!sockaddr_equal(&a, &c));
+ assert_se(!sockaddr_equal(&b, &c));
+ assert_se(!sockaddr_equal(&a, &e));
+}
+
+static void test_sockaddr_un_len(void) {
+ log_info("/* %s */", __func__);
+
+ static const struct sockaddr_un fs = {
+ .sun_family = AF_UNIX,
+ .sun_path = "/foo/bar/waldo",
+ };
+
+ static const struct sockaddr_un abstract = {
+ .sun_family = AF_UNIX,
+ .sun_path = "\0foobar",
+ };
+
+ assert_se(SOCKADDR_UN_LEN(fs) == offsetof(struct sockaddr_un, sun_path) + strlen(fs.sun_path) + 1);
+ assert_se(SOCKADDR_UN_LEN(abstract) == offsetof(struct sockaddr_un, sun_path) + 1 + strlen(abstract.sun_path + 1));
+}
+
+static void test_in_addr_is_multicast(void) {
+ union in_addr_union a, b;
+ int f;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(in_addr_from_string_auto("192.168.3.11", &f, &a) >= 0);
+ assert_se(in_addr_is_multicast(f, &a) == 0);
+
+ assert_se(in_addr_from_string_auto("224.0.0.1", &f, &a) >= 0);
+ assert_se(in_addr_is_multicast(f, &a) == 1);
+
+ assert_se(in_addr_from_string_auto("FF01:0:0:0:0:0:0:1", &f, &b) >= 0);
+ assert_se(in_addr_is_multicast(f, &b) == 1);
+
+ assert_se(in_addr_from_string_auto("2001:db8::c:69b:aeff:fe53:743e", &f, &b) >= 0);
+ assert_se(in_addr_is_multicast(f, &b) == 0);
+}
+
+static void test_getpeercred_getpeergroups(void) {
+ int r;
+
+ log_info("/* %s */", __func__);
+
+ r = safe_fork("(getpeercred)", FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ static const gid_t gids[] = { 3, 4, 5, 6, 7 };
+ gid_t *test_gids;
+ size_t n_test_gids;
+ uid_t test_uid;
+ gid_t test_gid;
+ struct ucred ucred;
+ int pair[2];
+
+ if (geteuid() == 0) {
+ test_uid = 1;
+ test_gid = 2;
+ test_gids = (gid_t*) gids;
+ n_test_gids = ELEMENTSOF(gids);
+
+ assert_se(setgroups(n_test_gids, test_gids) >= 0);
+ assert_se(setresgid(test_gid, test_gid, test_gid) >= 0);
+ assert_se(setresuid(test_uid, test_uid, test_uid) >= 0);
+
+ } else {
+ long ngroups_max;
+
+ test_uid = getuid();
+ test_gid = getgid();
+
+ ngroups_max = sysconf(_SC_NGROUPS_MAX);
+ assert(ngroups_max > 0);
+
+ test_gids = newa(gid_t, ngroups_max);
+
+ r = getgroups(ngroups_max, test_gids);
+ assert_se(r >= 0);
+ n_test_gids = (size_t) r;
+ }
+
+ assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, pair) >= 0);
+
+ assert_se(getpeercred(pair[0], &ucred) >= 0);
+
+ assert_se(ucred.uid == test_uid);
+ assert_se(ucred.gid == test_gid);
+ assert_se(ucred.pid == getpid_cached());
+
+ {
+ _cleanup_free_ gid_t *peer_groups = NULL;
+
+ r = getpeergroups(pair[0], &peer_groups);
+ assert_se(r >= 0 || IN_SET(r, -EOPNOTSUPP, -ENOPROTOOPT));
+
+ if (r >= 0) {
+ assert_se((size_t) r == n_test_gids);
+ assert_se(memcmp(peer_groups, test_gids, sizeof(gid_t) * n_test_gids) == 0);
+ }
+ }
+
+ safe_close_pair(pair);
+ _exit(EXIT_SUCCESS);
+ }
+}
+
+static void test_passfd_read(void) {
+ static const char file_contents[] = "test contents for passfd";
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ int r;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);
+
+ r = safe_fork("(passfd_read)", FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ /* Child */
+ char tmpfile[] = "/tmp/test-socket-util-passfd-read-XXXXXX";
+ _cleanup_close_ int tmpfd = -1;
+
+ pair[0] = safe_close(pair[0]);
+
+ tmpfd = mkostemp_safe(tmpfile);
+ assert_se(tmpfd >= 0);
+ assert_se(write(tmpfd, file_contents, strlen(file_contents)) == (ssize_t) strlen(file_contents));
+ tmpfd = safe_close(tmpfd);
+
+ tmpfd = open(tmpfile, O_RDONLY);
+ assert_se(tmpfd >= 0);
+ assert_se(unlink(tmpfile) == 0);
+
+ assert_se(send_one_fd(pair[1], tmpfd, MSG_DONTWAIT) == 0);
+ _exit(EXIT_SUCCESS);
+ }
+
+ /* Parent */
+ char buf[64];
+ struct iovec iov = IOVEC_INIT(buf, sizeof(buf)-1);
+ _cleanup_close_ int fd = -1;
+
+ pair[1] = safe_close(pair[1]);
+
+ assert_se(receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd) == 0);
+
+ assert_se(fd >= 0);
+ r = read(fd, buf, sizeof(buf)-1);
+ assert_se(r >= 0);
+ buf[r] = 0;
+ assert_se(streq(buf, file_contents));
+}
+
+static void test_passfd_contents_read(void) {
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ static const char file_contents[] = "test contents in the file";
+ static const char wire_contents[] = "test contents on the wire";
+ int r;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);
+
+ r = safe_fork("(passfd_contents_read)", FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ /* Child */
+ struct iovec iov = IOVEC_INIT_STRING(wire_contents);
+ char tmpfile[] = "/tmp/test-socket-util-passfd-contents-read-XXXXXX";
+ _cleanup_close_ int tmpfd = -1;
+
+ pair[0] = safe_close(pair[0]);
+
+ tmpfd = mkostemp_safe(tmpfile);
+ assert_se(tmpfd >= 0);
+ assert_se(write(tmpfd, file_contents, strlen(file_contents)) == (ssize_t) strlen(file_contents));
+ tmpfd = safe_close(tmpfd);
+
+ tmpfd = open(tmpfile, O_RDONLY);
+ assert_se(tmpfd >= 0);
+ assert_se(unlink(tmpfile) == 0);
+
+ assert_se(send_one_fd_iov(pair[1], tmpfd, &iov, 1, MSG_DONTWAIT) > 0);
+ _exit(EXIT_SUCCESS);
+ }
+
+ /* Parent */
+ char buf[64];
+ struct iovec iov = IOVEC_INIT(buf, sizeof(buf)-1);
+ _cleanup_close_ int fd = -1;
+ ssize_t k;
+
+ pair[1] = safe_close(pair[1]);
+
+ k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);
+ assert_se(k > 0);
+ buf[k] = 0;
+ assert_se(streq(buf, wire_contents));
+
+ assert_se(fd >= 0);
+ r = read(fd, buf, sizeof(buf)-1);
+ assert_se(r >= 0);
+ buf[r] = 0;
+ assert_se(streq(buf, file_contents));
+}
+
+static void test_receive_nopassfd(void) {
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ static const char wire_contents[] = "no fd passed here";
+ int r;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);
+
+ r = safe_fork("(receive_nopassfd)", FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ /* Child */
+ struct iovec iov = IOVEC_INIT_STRING(wire_contents);
+
+ pair[0] = safe_close(pair[0]);
+
+ assert_se(send_one_fd_iov(pair[1], -1, &iov, 1, MSG_DONTWAIT) > 0);
+ _exit(EXIT_SUCCESS);
+ }
+
+ /* Parent */
+ char buf[64];
+ struct iovec iov = IOVEC_INIT(buf, sizeof(buf)-1);
+ int fd = -999;
+ ssize_t k;
+
+ pair[1] = safe_close(pair[1]);
+
+ k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);
+ assert_se(k > 0);
+ buf[k] = 0;
+ assert_se(streq(buf, wire_contents));
+
+ /* no fd passed here, confirm it was reset */
+ assert_se(fd == -1);
+}
+
+static void test_send_nodata_nofd(void) {
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ int r;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);
+
+ r = safe_fork("(send_nodata_nofd)", FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ /* Child */
+ pair[0] = safe_close(pair[0]);
+
+ assert_se(send_one_fd_iov(pair[1], -1, NULL, 0, MSG_DONTWAIT) == -EINVAL);
+ _exit(EXIT_SUCCESS);
+ }
+
+ /* Parent */
+ char buf[64];
+ struct iovec iov = IOVEC_INIT(buf, sizeof(buf)-1);
+ int fd = -999;
+ ssize_t k;
+
+ pair[1] = safe_close(pair[1]);
+
+ k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);
+ /* recvmsg() will return errno EAGAIN if nothing was sent */
+ assert_se(k == -EAGAIN);
+
+ /* receive_one_fd_iov returned error, so confirm &fd wasn't touched */
+ assert_se(fd == -999);
+}
+
+static void test_send_emptydata(void) {
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ int r;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);
+
+ r = safe_fork("(send_emptydata)", FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ /* Child */
+ struct iovec iov = IOVEC_INIT_STRING(""); /* zero-length iov */
+ assert_se(iov.iov_len == 0);
+
+ pair[0] = safe_close(pair[0]);
+
+ /* This will succeed, since iov is set. */
+ assert_se(send_one_fd_iov(pair[1], -1, &iov, 1, MSG_DONTWAIT) == 0);
+ _exit(EXIT_SUCCESS);
+ }
+
+ /* Parent */
+ char buf[64];
+ struct iovec iov = IOVEC_INIT(buf, sizeof(buf)-1);
+ int fd = -999;
+ ssize_t k;
+
+ pair[1] = safe_close(pair[1]);
+
+ k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);
+ /* receive_one_fd_iov() returns -EIO if an fd is not found and no data was returned. */
+ assert_se(k == -EIO);
+
+ /* receive_one_fd_iov returned error, so confirm &fd wasn't touched */
+ assert_se(fd == -999);
+}
+
+int main(int argc, char *argv[]) {
+ test_setup_logging(LOG_DEBUG);
+
+ test_ifname_valid();
+
+ test_socket_address_parse();
+ test_socket_print_unix();
+ test_socket_address_parse_netlink();
+ test_socket_address_equal();
+ test_socket_address_get_path();
+ test_socket_address_is();
+ test_socket_address_is_netlink();
+
+ test_in_addr_is_null();
+ test_in_addr_prefix_intersect();
+ test_in_addr_prefix_next();
+ test_in_addr_to_string();
+ test_in_addr_ifindex_to_string();
+ test_in_addr_ifindex_from_string_auto();
+
+ test_sockaddr_equal();
+
+ test_sockaddr_un_len();
+
+ test_in_addr_is_multicast();
+
+ test_getpeercred_getpeergroups();
+
+ test_passfd_read();
+ test_passfd_contents_read();
+ test_receive_nopassfd();
+ test_send_nodata_nofd();
+ test_send_emptydata();
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-13 11:21:21 +0000