20669300594

Committed 02 Jan 2026 09:00PM UTC coverage: 72.677% (-0.02%) from 72.697%

Build # 20669300594

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push

github

Committed by

web-flow

Commit Message

clang-tidy: Enable more warnings (#39910)

Run Details

25 of 27 new or added lines in 3 files covered. (92.59%)

5655 existing lines in 111 files now uncovered.

310023 of 426578 relevant lines covered (72.68%)

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96.77

/src/test/test-socket-util.c

/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include <fcntl.h>
#include <grp.h>
#include <unistd.h>

#include "alloc-util.h"
#include "escape.h"
#include "fd-util.h"
#include "fs-util.h"
#include "in-addr-util.h"
#include "iovec-util.h"
#include "log.h"
#include "path-util.h"
#include "pidref.h"
#include "process-util.h"
#include "random-util.h"
#include "rm-rf.h"
#include "socket-util.h"
#include "tests.h"
#include "tmpfile-util.h"
#include "user-util.h"

assert_cc(SUN_PATH_LEN == 108);

TEST(ifname_valid) {
        assert_se( ifname_valid("foo"));
        assert_se( ifname_valid("eth0"));

        assert_se(!ifname_valid("0"));
        assert_se(!ifname_valid("99"));
        assert_se( ifname_valid("a99"));
        assert_se( ifname_valid("99a"));

        assert_se(!ifname_valid(NULL));
        assert_se(!ifname_valid(""));
        assert_se(!ifname_valid(" "));
        assert_se(!ifname_valid(" foo"));
        assert_se(!ifname_valid("bar\n"));
        assert_se(!ifname_valid("."));
        assert_se(!ifname_valid(".."));
        assert_se(ifname_valid("foo.bar"));
        assert_se(!ifname_valid("x:y"));

        assert_se( ifname_valid_full("xxxxxxxxxxxxxxx", 0));
        assert_se(!ifname_valid_full("xxxxxxxxxxxxxxxx", 0));
        assert_se( ifname_valid_full("xxxxxxxxxxxxxxxx", IFNAME_VALID_ALTERNATIVE));
        assert_se( ifname_valid_full("xxxxxxxxxxxxxxxx", IFNAME_VALID_ALTERNATIVE));
        assert_se(!ifname_valid_full("999", IFNAME_VALID_ALTERNATIVE));
        assert_se( ifname_valid_full("999", IFNAME_VALID_ALTERNATIVE | IFNAME_VALID_NUMERIC));
        assert_se(!ifname_valid_full("0", IFNAME_VALID_ALTERNATIVE | IFNAME_VALID_NUMERIC));
}

static void test_socket_print_unix_one(const char *in, size_t len_in, const char *expected) {
        _cleanup_free_ char *out = NULL, *c = NULL;

        assert_se(len_in <= SUN_PATH_LEN);
        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_STREQ(out, expected);
}

TEST(socket_print_unix) {
        /* 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("\0\a\b\n\255", 6, "@\\a\\b\\n\\255\\000");
}

TEST(sockaddr_equal) {
        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,
        };

        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));
}

TEST(sockaddr_un_len) {
        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));
}

TEST(in_addr_is_multicast) {
        union in_addr_union a, b;
        int f;

        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);
}

TEST(getpeercred_getpeergroups) {
        int r;

        r = ASSERT_OK(pidref_safe_fork("(getpeercred)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));

        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] = EBADF_PAIR;

                if (geteuid() == 0 && !userns_has_single_user()) {
                        test_uid = 1;
                        test_gid = 2;
                        test_gids = (gid_t*) gids;
                        n_test_gids = ELEMENTSOF(gids);

                        assert_se(fully_set_uid_gid(test_uid, test_gid, test_gids, n_test_gids) >= 0);
                } else {
                        long ngroups_max;

                        test_uid = getuid();
                        test_gid = getgid();

                        ngroups_max = sysconf(_SC_NGROUPS_MAX);
                        assert_se(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);
        }
}

TEST(passfd_read) {
        static const char file_contents[] = "test contents for passfd";
        _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
        int r;

        assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);

        r = ASSERT_OK(pidref_safe_fork("(passfd_read)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));

        if (r == 0) {
                /* Child */
                pair[0] = safe_close(pair[0]);

                char tmpfile[] = "/tmp/test-socket-util-passfd-read-XXXXXX";
                assert_se(write_tmpfile(tmpfile, file_contents) == 0);

                _cleanup_close_ int 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_MAKE(buf, sizeof(buf)-1);
        _cleanup_close_ int fd = -EBADF;

        pair[1] = safe_close(pair[1]);

        assert_se(receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd) == 0);

        assert_se(fd >= 0);
        ssize_t n = read(fd, buf, sizeof(buf)-1);
        assert_se(n >= 0);
        buf[n] = 0;
        ASSERT_STREQ(buf, file_contents);
}

TEST(passfd_contents_read) {
        _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
        static const char file_contents[] = "test contents in the file";
        static const char wire_contents[] = "test contents on the wire";
        int r;

        assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);

        r = ASSERT_OK(pidref_safe_fork("(passfd_contents_read)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));

        if (r == 0) {
                /* Child */
                struct iovec iov = IOVEC_MAKE_STRING(wire_contents);
                char tmpfile[] = "/tmp/test-socket-util-passfd-contents-read-XXXXXX";

                pair[0] = safe_close(pair[0]);

                assert_se(write_tmpfile(tmpfile, file_contents) == 0);

                _cleanup_close_ int 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_MAKE(buf, sizeof(buf)-1);
        _cleanup_close_ int fd = -EBADF;
        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_STREQ(buf, wire_contents);

        assert_se(fd >= 0);
        r = read(fd, buf, sizeof(buf)-1);
        assert_se(r >= 0);
        buf[r] = 0;
        ASSERT_STREQ(buf, file_contents);
}

TEST(pass_many_fds_contents_read) {
        _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
        static const char file_contents[][STRLEN("test contents in the fileX") + 1] = {
                "test contents in the file0",
                "test contents in the file1",
                "test contents in the file2"
        };
        static const char wire_contents[] = "test contents on the wire";
        int r;

        assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);

        r = ASSERT_OK(pidref_safe_fork("(passfd_contents_read)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));

        if (r == 0) {
                /* Child */
                struct iovec iov = IOVEC_MAKE_STRING(wire_contents);
                char tmpfile[][STRLEN("/tmp/test-socket-util-passfd-contents-read-XXXXXX") + 1] = {
                        "/tmp/test-socket-util-passfd-contents-read-XXXXXX",
                        "/tmp/test-socket-util-passfd-contents-read-XXXXXX",
                        "/tmp/test-socket-util-passfd-contents-read-XXXXXX"
                };
                int tmpfds[3] = EBADF_TRIPLET;

                pair[0] = safe_close(pair[0]);

                for (size_t i = 0; i < 3; ++i) {
                        assert_se(write_tmpfile(tmpfile[i], file_contents[i]) == 0);
                        tmpfds[i] = open(tmpfile[i], O_RDONLY);
                        assert_se(tmpfds[i] >= 0);
                        assert_se(unlink(tmpfile[i]) == 0);
                }

                assert_se(send_many_fds_iov(pair[1], tmpfds, 3, &iov, 1, MSG_DONTWAIT) > 0);
                close_many(tmpfds, 3);
                _exit(EXIT_SUCCESS);
        }

        /* Parent */
        char buf[64];
        struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);
        _cleanup_free_ int *fds = NULL;
        size_t n_fds = 0;
        ssize_t k;

        pair[1] = safe_close(pair[1]);

        k = receive_many_fds_iov(pair[0], &iov, 1, &fds, &n_fds, MSG_DONTWAIT);
        assert_se(k > 0);
        buf[k] = 0;
        ASSERT_STREQ(buf, wire_contents);

        assert_se(n_fds == 3);

        for (size_t i = 0; i < 3; ++i) {
                assert_se(fds[i] >= 0);
                r = read(fds[i], buf, sizeof(buf)-1);
                assert_se(r >= 0);
                buf[r] = 0;
                ASSERT_STREQ(buf, file_contents[i]);
                safe_close(fds[i]);
        }
}

TEST(receive_nopassfd) {
        _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
        static const char wire_contents[] = "no fd passed here";
        int r;

        assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);

        r = ASSERT_OK(pidref_safe_fork("(receive_nopassfd)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));
        assert_se(r >= 0);

        if (r == 0) {
                /* Child */
                struct iovec iov = IOVEC_MAKE_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_MAKE(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_STREQ(buf, wire_contents);

        /* no fd passed here, confirm it was reset */
        assert_se(fd == -EBADF);
}

TEST(send_nodata_nofd) {
        _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
        int r;

        assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);

        r = ASSERT_OK(pidref_safe_fork("(send_nodata_nofd)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));

        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_MAKE(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);
}

TEST(send_emptydata) {
        _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
        int r;

        assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);

        r = ASSERT_OK(pidref_safe_fork("(send_emptydata)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT, NULL));

        if (r == 0) {
                /* Child */
                pair[0] = safe_close(pair[0]);

                /* This will succeed, since iov is set. */
                assert_se(send_one_fd_iov(pair[1], -1, &iovec_empty, 1, MSG_DONTWAIT) == 0);
                _exit(EXIT_SUCCESS);
        }

        /* Parent */
        char buf[64];
        struct iovec iov = IOVEC_MAKE(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);
}

TEST(flush_accept) {
        _cleanup_close_ int listen_stream, listen_dgram, listen_seqpacket, connect_stream, connect_dgram, connect_seqpacket;
        static const union sockaddr_union sa = { .un.sun_family = AF_UNIX };
        union sockaddr_union lsa;
        socklen_t l;

        listen_stream = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
        assert_se(listen_stream >= 0);

        listen_dgram = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
        assert_se(listen_dgram >= 0);

        listen_seqpacket = socket(AF_UNIX, SOCK_SEQPACKET|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
        assert_se(listen_seqpacket >= 0);

        assert_se(flush_accept(listen_stream) < 0);
        assert_se(flush_accept(listen_dgram) < 0);
        assert_se(flush_accept(listen_seqpacket) < 0);

        assert_se(bind(listen_stream, &sa.sa, sizeof(sa_family_t)) >= 0);
        assert_se(bind(listen_dgram, &sa.sa, sizeof(sa_family_t)) >= 0);
        assert_se(bind(listen_seqpacket, &sa.sa, sizeof(sa_family_t)) >= 0);

        assert_se(flush_accept(listen_stream) < 0);
        assert_se(flush_accept(listen_dgram) < 0);
        assert_se(flush_accept(listen_seqpacket) < 0);

        assert_se(listen(listen_stream, SOMAXCONN_DELUXE) >= 0);
        assert_se(listen(listen_dgram, SOMAXCONN_DELUXE) < 0);
        assert_se(listen(listen_seqpacket, SOMAXCONN_DELUXE) >= 0);

        assert_se(flush_accept(listen_stream) >= 0);
        assert_se(flush_accept(listen_dgram) < 0);
        assert_se(flush_accept(listen_seqpacket) >= 0);

        connect_stream = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
        assert_se(connect_stream >= 0);

        connect_dgram = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
        assert_se(connect_dgram >= 0);

        connect_seqpacket = socket(AF_UNIX, SOCK_SEQPACKET|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
        assert_se(connect_seqpacket >= 0);

        l = sizeof(lsa);
        assert_se(getsockname(listen_stream, &lsa.sa, &l) >= 0);
        assert_se(connect(connect_stream, &lsa.sa, l) >= 0);

        l = sizeof(lsa);
        assert_se(getsockname(listen_dgram, &lsa.sa, &l) >= 0);
        assert_se(connect(connect_dgram, &lsa.sa, l) >= 0);

        l = sizeof(lsa);
        assert_se(getsockname(listen_seqpacket, &lsa.sa, &l) >= 0);
        assert_se(connect(connect_seqpacket, &lsa.sa, l) >= 0);

        assert_se(flush_accept(listen_stream) >= 0);
        assert_se(flush_accept(listen_dgram) < 0);
        assert_se(flush_accept(listen_seqpacket) >= 0);
}

TEST(ipv6_enabled) {
        log_info("IPv6 supported: %s", yes_no(socket_ipv6_is_supported()));
        log_info("IPv6 enabled: %s", yes_no(socket_ipv6_is_enabled()));
}

TEST(sockaddr_un_set_path) {
        _cleanup_(rm_rf_physical_and_freep) char *t = NULL;
        _cleanup_(unlink_and_freep) char *sh = NULL;
        _cleanup_free_ char *j = NULL;
        union sockaddr_union sa;
        _cleanup_close_ int fd1, fd2, fd3;

        assert_se(mkdtemp_malloc("/tmp/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaXXXXXX", &t) >= 0);
        assert_se(strlen(t) > SUN_PATH_LEN);

        assert_se(j = path_join(t, "sock"));
        assert_se(sockaddr_un_set_path(&sa.un, j) == -ENAMETOOLONG); /* too long for AF_UNIX socket */

        assert_se(asprintf(&sh, "/tmp/%" PRIx64, random_u64()) >= 0);
        assert_se(symlink(t, sh) >= 0); /* create temporary symlink, to access it anyway */

        free(j);
        assert_se(j = path_join(sh, "sock"));
        assert_se(sockaddr_un_set_path(&sa.un, j) >= 0);

        fd1 = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
        assert_se(fd1 >= 0);
        assert_se(bind(fd1, &sa.sa, sockaddr_len(&sa)) >= 0);
        assert_se(listen(fd1, 1) >= 0);

        sh = unlink_and_free(sh); /* remove temporary symlink */

        fd2 = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
        assert_se(fd2 >= 0);
        assert_se(connect(fd2, &sa.sa, sockaddr_len(&sa)) < 0);
        assert_se(errno == ENOENT); /* we removed the symlink, must fail */

        free(j);
        assert_se(j = path_join(t, "sock"));

        fd3 = open(j, O_CLOEXEC|O_PATH|O_NOFOLLOW);
        assert_se(fd3 > 0);
        assert_se(sockaddr_un_set_path(&sa.un, FORMAT_PROC_FD_PATH(fd3)) >= 0); /* connect via O_PATH instead, circumventing 108ch limit */

        assert_se(connect(fd2, &sa.sa, sockaddr_len(&sa)) >= 0);
}

TEST(getpeerpidref) {
        _cleanup_close_pair_ int fd[2] = EBADF_PAIR;

        ASSERT_OK(socketpair(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fd));

        _cleanup_(pidref_done) PidRef pidref0 = PIDREF_NULL, pidref1 = PIDREF_NULL, pidref_self = PIDREF_NULL, pidref_pid1 = PIDREF_NULL;
        ASSERT_OK(getpeerpidref(fd[0], &pidref0));
        ASSERT_OK(getpeerpidref(fd[1], &pidref1));

        ASSERT_OK(pidref_set_self(&pidref_self));
        ASSERT_OK(pidref_set_pid(&pidref_pid1, 1));

        ASSERT_TRUE(pidref_equal(&pidref0, &pidref1));
        ASSERT_TRUE(pidref_equal(&pidref0, &pidref_self));
        ASSERT_TRUE(pidref_equal(&pidref1, &pidref_self));

        ASSERT_TRUE(!pidref_equal(&pidref_self, &pidref_pid1));
        ASSERT_TRUE(!pidref_equal(&pidref1, &pidref_pid1));
        ASSERT_TRUE(!pidref_equal(&pidref0, &pidref_pid1));
}

DEFINE_TEST_MAIN(LOG_DEBUG);

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3	#include <fcntl.h>
4	#include <grp.h>
5	#include <unistd.h>
6
7	#include "alloc-util.h"
8	#include "escape.h"
9	#include "fd-util.h"
10	#include "fs-util.h"
11	#include "in-addr-util.h"
12	#include "iovec-util.h"
13	#include "log.h"
14	#include "path-util.h"
15	#include "pidref.h"
16	#include "process-util.h"
17	#include "random-util.h"
18	#include "rm-rf.h"
19	#include "socket-util.h"
20	#include "tests.h"
21	#include "tmpfile-util.h"
22	#include "user-util.h"
23
24	assert_cc(SUN_PATH_LEN == 108);
25
26	TEST(ifname_valid) {	1✔
27	assert_se( ifname_valid("foo"));	1✔
28	assert_se( ifname_valid("eth0"));	1✔
29
30	assert_se(!ifname_valid("0"));	1✔
31	assert_se(!ifname_valid("99"));	1✔
32	assert_se( ifname_valid("a99"));	1✔
33	assert_se( ifname_valid("99a"));	1✔
34
35	assert_se(!ifname_valid(NULL));	1✔
36	assert_se(!ifname_valid(""));	1✔
37	assert_se(!ifname_valid(" "));	1✔
38	assert_se(!ifname_valid(" foo"));	1✔
39	assert_se(!ifname_valid("bar\n"));	1✔
40	assert_se(!ifname_valid("."));	1✔
41	assert_se(!ifname_valid(".."));	1✔
42	assert_se(ifname_valid("foo.bar"));	1✔
43	assert_se(!ifname_valid("x:y"));	1✔
44
45	assert_se( ifname_valid_full("xxxxxxxxxxxxxxx", 0));	1✔
46	assert_se(!ifname_valid_full("xxxxxxxxxxxxxxxx", 0));	1✔
47	assert_se( ifname_valid_full("xxxxxxxxxxxxxxxx", IFNAME_VALID_ALTERNATIVE));	1✔
48	assert_se( ifname_valid_full("xxxxxxxxxxxxxxxx", IFNAME_VALID_ALTERNATIVE));	1✔
49	assert_se(!ifname_valid_full("999", IFNAME_VALID_ALTERNATIVE));	1✔
50	assert_se( ifname_valid_full("999", IFNAME_VALID_ALTERNATIVE \| IFNAME_VALID_NUMERIC));	1✔
51	assert_se(!ifname_valid_full("0", IFNAME_VALID_ALTERNATIVE \| IFNAME_VALID_NUMERIC));	1✔
52	}	1✔
53
54	static void test_socket_print_unix_one(const char in, size_t len_in, const char expected) {	8✔
55	_cleanup_free_ char out = NULL, c = NULL;	×
56
57	assert_se(len_in <= SUN_PATH_LEN);	8✔
58	SocketAddress a = { .sockaddr = { .un = { .sun_family = AF_UNIX } },	8✔
59	.size = offsetof(struct sockaddr_un, sun_path) + len_in,	8✔
60	.type = SOCK_STREAM,
61	};
62	memcpy(a.sockaddr.un.sun_path, in, len_in);	8✔
63
64	assert_se(socket_address_print(&a, &out) >= 0);	8✔
65	assert_se(c = cescape(in));	8✔
66	log_info("\"%s\" → \"%s\" (expect \"%s\")", in, out, expected);	8✔
67	ASSERT_STREQ(out, expected);	8✔
68	}	8✔
69
70	TEST(socket_print_unix) {	1✔
71	/* Some additional tests for abstract addresses which we don't parse */
72
73	test_socket_print_unix_one("\0\0\0\0", 4, "@\\000\\000\\000");	1✔
74	test_socket_print_unix_one("@abs", 5, "@abs");	1✔
75	test_socket_print_unix_one("\n", 2, "\\n");	1✔
76	test_socket_print_unix_one("", 1, "<unnamed>");	1✔
77	test_socket_print_unix_one("\0", 1, "<unnamed>");	1✔
78	test_socket_print_unix_one("\0_________________________there's 108 characters in this string_____________________________________________", 108,	1✔
79	"@_________________________there\\'s 108 characters in this string_____________________________________________");
80	test_socket_print_unix_one("////////////////////////////////////////////////////////////////////////////////////////////////////////////", 108,	1✔
81	"////////////////////////////////////////////////////////////////////////////////////////////////////////////");
82	test_socket_print_unix_one("\0\a\b\n\255", 6, "@\\a\\b\\n\\255\\000");	1✔
83	}	1✔
84
85	TEST(sockaddr_equal) {	1✔
86	union sockaddr_union a = {	1✔
87	.in.sin_family = AF_INET,
88	.in.sin_port = 0,
89	.in.sin_addr.s_addr = htobe32(INADDR_ANY),	1✔
90	};
91	union sockaddr_union b = {	1✔
92	.in.sin_family = AF_INET,
93	.in.sin_port = 0,
94	.in.sin_addr.s_addr = htobe32(INADDR_ANY),	1✔
95	};
96	union sockaddr_union c = {	1✔
97	.in.sin_family = AF_INET,
98	.in.sin_port = 0,
99	.in.sin_addr.s_addr = htobe32(1234),	1✔
100	};
101	union sockaddr_union d = {	1✔
102	.in6.sin6_family = AF_INET6,
103	.in6.sin6_port = 0,
104	.in6.sin6_addr = IN6ADDR_ANY_INIT,
105	};
106	union sockaddr_union e = {	1✔
107	.vm.svm_family = AF_VSOCK,
108	.vm.svm_port = 0,
109	.vm.svm_cid = VMADDR_CID_ANY,
110	};
111
112	assert_se(sockaddr_equal(&a, &a));	1✔
113	assert_se(sockaddr_equal(&a, &b));	1✔
114	assert_se(sockaddr_equal(&d, &d));	1✔
115	assert_se(sockaddr_equal(&e, &e));	1✔
116	assert_se(!sockaddr_equal(&a, &c));	1✔
117	assert_se(!sockaddr_equal(&b, &c));	1✔
118	assert_se(!sockaddr_equal(&a, &e));	1✔
119	}	1✔
120
121	TEST(sockaddr_un_len) {	1✔
122	static const struct sockaddr_un fs = {	1✔
123	.sun_family = AF_UNIX,
124	.sun_path = "/foo/bar/waldo",
125	};
126
127	static const struct sockaddr_un abstract = {	1✔
128	.sun_family = AF_UNIX,
129	.sun_path = "\0foobar",
130	};
131
132	assert_se(sockaddr_un_len(&fs) == offsetof(struct sockaddr_un, sun_path) + strlen(fs.sun_path) + 1);	1✔
133	assert_se(sockaddr_un_len(&abstract) == offsetof(struct sockaddr_un, sun_path) + 1 + strlen(abstract.sun_path + 1));	1✔
134	}	1✔
135
136	TEST(in_addr_is_multicast) {	1✔
137	union in_addr_union a, b;	1✔
138	int f;	1✔
139
140	assert_se(in_addr_from_string_auto("192.168.3.11", &f, &a) >= 0);	1✔
141	assert_se(in_addr_is_multicast(f, &a) == 0);	1✔
142
143	assert_se(in_addr_from_string_auto("224.0.0.1", &f, &a) >= 0);	1✔
144	assert_se(in_addr_is_multicast(f, &a) == 1);	1✔
145
146	assert_se(in_addr_from_string_auto("FF01:0:0:0:0:0:0:1", &f, &b) >= 0);	1✔
147	assert_se(in_addr_is_multicast(f, &b) == 1);	1✔
148
149	assert_se(in_addr_from_string_auto("2001:db8::c:69b:aeff:fe53:743e", &f, &b) >= 0);	1✔
150	assert_se(in_addr_is_multicast(f, &b) == 0);	1✔
151	}	1✔
152
153	TEST(getpeercred_getpeergroups) {	1✔
154	int r;	1✔
155
156	r = ASSERT_OK(pidref_safe_fork("(getpeercred)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
157
158	if (r == 0) {	2✔
159	static const gid_t gids[] = { 3, 4, 5, 6, 7 };	1✔
160	gid_t *test_gids;	1✔
161	size_t n_test_gids;	1✔
162	uid_t test_uid;	1✔
163	gid_t test_gid;	1✔
164	struct ucred ucred;	1✔
165	int pair[2] = EBADF_PAIR;	1✔
166
167	if (geteuid() == 0 && !userns_has_single_user()) {	1✔
168	test_uid = 1;	1✔
169	test_gid = 2;	1✔
170	test_gids = (gid_t*) gids;	1✔
171	n_test_gids = ELEMENTSOF(gids);	1✔
172
173	assert_se(fully_set_uid_gid(test_uid, test_gid, test_gids, n_test_gids) >= 0);	1✔
174	} else {
UNCOV 175	long ngroups_max;	×
176
UNCOV 177	test_uid = getuid();	×
178	test_gid = getgid();	×
179
UNCOV 180	ngroups_max = sysconf(_SC_NGROUPS_MAX);	×
181	assert_se(ngroups_max > 0);	×
182
UNCOV 183	test_gids = newa(gid_t, ngroups_max);	×
184
UNCOV 185	r = getgroups(ngroups_max, test_gids);	×
186	assert_se(r >= 0);	×
187	n_test_gids = (size_t) r;	×
188	}
189
190	assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, pair) >= 0);	1✔
191
192	assert_se(getpeercred(pair[0], &ucred) >= 0);	1✔
193
194	assert_se(ucred.uid == test_uid);	1✔
195	assert_se(ucred.gid == test_gid);	1✔
196	assert_se(ucred.pid == getpid_cached());	1✔
197
198	{
199	_cleanup_free_ gid_t *peer_groups = NULL;	2✔
200
201	r = getpeergroups(pair[0], &peer_groups);	1✔
202	assert_se(r >= 0 \|\| IN_SET(r, -EOPNOTSUPP, -ENOPROTOOPT));	1✔
203
UNCOV 204	if (r >= 0) {	×
205	assert_se((size_t) r == n_test_gids);	1✔
206	assert_se(memcmp(peer_groups, test_gids, sizeof(gid_t) * n_test_gids) == 0);	1✔
207	}
208	}
209
210	safe_close_pair(pair);	1✔
211	_exit(EXIT_SUCCESS);	1✔
212	}
213	}	1✔
214
215	TEST(passfd_read) {	1✔
216	static const char file_contents[] = "test contents for passfd";	1✔
217	_cleanup_close_pair_ int pair[2] = EBADF_PAIR;	2✔
218	int r;	1✔
219
220	assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);	1✔
221
222	r = ASSERT_OK(pidref_safe_fork("(passfd_read)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
223
224	if (r == 0) {	2✔
225	/* Child */
226	pair[0] = safe_close(pair[0]);	1✔
227
228	char tmpfile[] = "/tmp/test-socket-util-passfd-read-XXXXXX";	1✔
229	assert_se(write_tmpfile(tmpfile, file_contents) == 0);	1✔
230
231	_cleanup_close_ int tmpfd = open(tmpfile, O_RDONLY);	1✔
232	assert_se(tmpfd >= 0);	1✔
233	assert_se(unlink(tmpfile) == 0);	1✔
234
235	assert_se(send_one_fd(pair[1], tmpfd, MSG_DONTWAIT) == 0);	1✔
236	_exit(EXIT_SUCCESS);	1✔
237	}
238
239	/* Parent */
240	char buf[64];	1✔
241	struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);	1✔
242	_cleanup_close_ int fd = -EBADF;	1✔
243
244	pair[1] = safe_close(pair[1]);	1✔
245
246	assert_se(receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd) == 0);	1✔
247
248	assert_se(fd >= 0);	1✔
249	ssize_t n = read(fd, buf, sizeof(buf)-1);	1✔
250	assert_se(n >= 0);	1✔
251	buf[n] = 0;	1✔
252	ASSERT_STREQ(buf, file_contents);	1✔
253	}	1✔
254
255	TEST(passfd_contents_read) {	1✔
256	_cleanup_close_pair_ int pair[2] = EBADF_PAIR;	2✔
257	static const char file_contents[] = "test contents in the file";	1✔
258	static const char wire_contents[] = "test contents on the wire";	1✔
259	int r;	1✔
260
261	assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);	1✔
262
263	r = ASSERT_OK(pidref_safe_fork("(passfd_contents_read)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
264
265	if (r == 0) {	2✔
266	/* Child */
267	struct iovec iov = IOVEC_MAKE_STRING(wire_contents);	1✔
268	char tmpfile[] = "/tmp/test-socket-util-passfd-contents-read-XXXXXX";	1✔
269
270	pair[0] = safe_close(pair[0]);	1✔
271
272	assert_se(write_tmpfile(tmpfile, file_contents) == 0);	1✔
273
274	_cleanup_close_ int tmpfd = open(tmpfile, O_RDONLY);	1✔
275	assert_se(tmpfd >= 0);	1✔
276	assert_se(unlink(tmpfile) == 0);	1✔
277
278	assert_se(send_one_fd_iov(pair[1], tmpfd, &iov, 1, MSG_DONTWAIT) > 0);	1✔
279	_exit(EXIT_SUCCESS);	1✔
280	}
281
282	/* Parent */
283	char buf[64];	1✔
284	struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);	1✔
285	_cleanup_close_ int fd = -EBADF;	1✔
286	ssize_t k;	1✔
287
288	pair[1] = safe_close(pair[1]);	1✔
289
290	k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);	1✔
291	assert_se(k > 0);	1✔
292	buf[k] = 0;	1✔
293	ASSERT_STREQ(buf, wire_contents);	1✔
294
295	assert_se(fd >= 0);	1✔
296	r = read(fd, buf, sizeof(buf)-1);	1✔
297	assert_se(r >= 0);	1✔
298	buf[r] = 0;	1✔
299	ASSERT_STREQ(buf, file_contents);	1✔
300	}	1✔
301
302	TEST(pass_many_fds_contents_read) {	1✔
303	_cleanup_close_pair_ int pair[2] = EBADF_PAIR;	2✔
304	static const char file_contents[][STRLEN("test contents in the fileX") + 1] = {	1✔
305	"test contents in the file0",
306	"test contents in the file1",
307	"test contents in the file2"
308	};
309	static const char wire_contents[] = "test contents on the wire";	1✔
310	int r;	1✔
311
312	assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);	1✔
313
314	r = ASSERT_OK(pidref_safe_fork("(passfd_contents_read)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
315
316	if (r == 0) {	2✔
317	/* Child */
318	struct iovec iov = IOVEC_MAKE_STRING(wire_contents);	1✔
319	char tmpfile[][STRLEN("/tmp/test-socket-util-passfd-contents-read-XXXXXX") + 1] = {	1✔
320	"/tmp/test-socket-util-passfd-contents-read-XXXXXX",
321	"/tmp/test-socket-util-passfd-contents-read-XXXXXX",
322	"/tmp/test-socket-util-passfd-contents-read-XXXXXX"
323	};
324	int tmpfds[3] = EBADF_TRIPLET;	1✔
325
326	pair[0] = safe_close(pair[0]);	1✔
327
328	for (size_t i = 0; i < 3; ++i) {	4✔
329	assert_se(write_tmpfile(tmpfile[i], file_contents[i]) == 0);	3✔
330	tmpfds[i] = open(tmpfile[i], O_RDONLY);	3✔
331	assert_se(tmpfds[i] >= 0);	3✔
332	assert_se(unlink(tmpfile[i]) == 0);	3✔
333	}
334
335	assert_se(send_many_fds_iov(pair[1], tmpfds, 3, &iov, 1, MSG_DONTWAIT) > 0);	1✔
336	close_many(tmpfds, 3);	1✔
337	_exit(EXIT_SUCCESS);	1✔
338	}
339
340	/* Parent */
341	char buf[64];	1✔
342	struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);	1✔
343	_cleanup_free_ int *fds = NULL;	1✔
344	size_t n_fds = 0;	1✔
345	ssize_t k;	1✔
346
347	pair[1] = safe_close(pair[1]);	1✔
348
349	k = receive_many_fds_iov(pair[0], &iov, 1, &fds, &n_fds, MSG_DONTWAIT);	1✔
350	assert_se(k > 0);	1✔
351	buf[k] = 0;	1✔
352	ASSERT_STREQ(buf, wire_contents);	1✔
353
354	assert_se(n_fds == 3);	1✔
355
356	for (size_t i = 0; i < 3; ++i) {	4✔
357	assert_se(fds[i] >= 0);	3✔
358	r = read(fds[i], buf, sizeof(buf)-1);	3✔
359	assert_se(r >= 0);	3✔
360	buf[r] = 0;	3✔
361	ASSERT_STREQ(buf, file_contents[i]);	3✔
362	safe_close(fds[i]);	3✔
363	}
364	}	1✔
365
366	TEST(receive_nopassfd) {	1✔
367	_cleanup_close_pair_ int pair[2] = EBADF_PAIR;	2✔
368	static const char wire_contents[] = "no fd passed here";	1✔
369	int r;	1✔
370
371	assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);	1✔
372
373	r = ASSERT_OK(pidref_safe_fork("(receive_nopassfd)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
374	assert_se(r >= 0);	2✔
375
376	if (r == 0) {	2✔
377	/* Child */
378	struct iovec iov = IOVEC_MAKE_STRING(wire_contents);	1✔
379
380	pair[0] = safe_close(pair[0]);	1✔
381
382	assert_se(send_one_fd_iov(pair[1], -1, &iov, 1, MSG_DONTWAIT) > 0);	1✔
383	_exit(EXIT_SUCCESS);	1✔
384	}
385
386	/* Parent */
387	char buf[64];	1✔
388	struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);	1✔
389	int fd = -999;	1✔
390	ssize_t k;	1✔
391
392	pair[1] = safe_close(pair[1]);	1✔
393
394	k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);	1✔
395	assert_se(k > 0);	1✔
396	buf[k] = 0;	1✔
397	ASSERT_STREQ(buf, wire_contents);	1✔
398
399	/* no fd passed here, confirm it was reset */
400	assert_se(fd == -EBADF);	1✔
401	}	1✔
402
403	TEST(send_nodata_nofd) {	1✔
404	_cleanup_close_pair_ int pair[2] = EBADF_PAIR;	2✔
405	int r;	1✔
406
407	assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);	1✔
408
409	r = ASSERT_OK(pidref_safe_fork("(send_nodata_nofd)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
410
411	if (r == 0) {	2✔
412	/* Child */
413	pair[0] = safe_close(pair[0]);	1✔
414
415	assert_se(send_one_fd_iov(pair[1], -1, NULL, 0, MSG_DONTWAIT) == -EINVAL);	1✔
416	_exit(EXIT_SUCCESS);	1✔
417	}
418
419	/* Parent */
420	char buf[64];	1✔
421	struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);	1✔
422	int fd = -999;	1✔
423	ssize_t k;	1✔
424
425	pair[1] = safe_close(pair[1]);	1✔
426
427	k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);	1✔
428	/* recvmsg() will return errno EAGAIN if nothing was sent */
429	assert_se(k == -EAGAIN);	1✔
430
431	/* receive_one_fd_iov returned error, so confirm &fd wasn't touched */
432	assert_se(fd == -999);	1✔
433	}	1✔
434
435	TEST(send_emptydata) {	1✔
436	_cleanup_close_pair_ int pair[2] = EBADF_PAIR;	2✔
437	int r;	1✔
438
439	assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) >= 0);	1✔
440
441	r = ASSERT_OK(pidref_safe_fork("(send_emptydata)", FORK_DEATHSIG_SIGTERM\|FORK_LOG\|FORK_WAIT, NULL));	1✔
442
443	if (r == 0) {	2✔
444	/* Child */
445	pair[0] = safe_close(pair[0]);	1✔
446
447	/* This will succeed, since iov is set. */
448	assert_se(send_one_fd_iov(pair[1], -1, &iovec_empty, 1, MSG_DONTWAIT) == 0);	1✔
449	_exit(EXIT_SUCCESS);	1✔
450	}
451
452	/* Parent */
453	char buf[64];	1✔
454	struct iovec iov = IOVEC_MAKE(buf, sizeof(buf)-1);	1✔
455	int fd = -999;	1✔
456	ssize_t k;	1✔
457
458	pair[1] = safe_close(pair[1]);	1✔
459
460	k = receive_one_fd_iov(pair[0], &iov, 1, MSG_DONTWAIT, &fd);	1✔
461	/* receive_one_fd_iov() returns -EIO if an fd is not found and no data was returned. */
462	assert_se(k == -EIO);	1✔
463
464	/* receive_one_fd_iov returned error, so confirm &fd wasn't touched */
465	assert_se(fd == -999);	1✔
466	}	1✔
467
468	TEST(flush_accept) {	1✔
469	_cleanup_close_ int listen_stream, listen_dgram, listen_seqpacket, connect_stream, connect_dgram, connect_seqpacket;	5✔
470	static const union sockaddr_union sa = { .un.sun_family = AF_UNIX };	1✔
471	union sockaddr_union lsa;	1✔
472	socklen_t l;	1✔
473
474	listen_stream = socket(AF_UNIX, SOCK_STREAM\|SOCK_CLOEXEC\|SOCK_NONBLOCK, 0);	1✔
475	assert_se(listen_stream >= 0);	1✔
476
477	listen_dgram = socket(AF_UNIX, SOCK_DGRAM\|SOCK_CLOEXEC\|SOCK_NONBLOCK, 0);	1✔
478	assert_se(listen_dgram >= 0);	1✔
479
480	listen_seqpacket = socket(AF_UNIX, SOCK_SEQPACKET\|SOCK_CLOEXEC\|SOCK_NONBLOCK, 0);	1✔
481	assert_se(listen_seqpacket >= 0);	1✔
482
483	assert_se(flush_accept(listen_stream) < 0);	1✔
484	assert_se(flush_accept(listen_dgram) < 0);	1✔
485	assert_se(flush_accept(listen_seqpacket) < 0);	1✔
486
487	assert_se(bind(listen_stream, &sa.sa, sizeof(sa_family_t)) >= 0);	1✔
488	assert_se(bind(listen_dgram, &sa.sa, sizeof(sa_family_t)) >= 0);	1✔
489	assert_se(bind(listen_seqpacket, &sa.sa, sizeof(sa_family_t)) >= 0);	1✔
490
491	assert_se(flush_accept(listen_stream) < 0);	1✔
492	assert_se(flush_accept(listen_dgram) < 0);	1✔
493	assert_se(flush_accept(listen_seqpacket) < 0);	1✔
494
495	assert_se(listen(listen_stream, SOMAXCONN_DELUXE) >= 0);	1✔
496	assert_se(listen(listen_dgram, SOMAXCONN_DELUXE) < 0);	1✔
497	assert_se(listen(listen_seqpacket, SOMAXCONN_DELUXE) >= 0);	1✔
498
499	assert_se(flush_accept(listen_stream) >= 0);	1✔
500	assert_se(flush_accept(listen_dgram) < 0);	1✔
501	assert_se(flush_accept(listen_seqpacket) >= 0);	1✔
502
503	connect_stream = socket(AF_UNIX, SOCK_STREAM\|SOCK_CLOEXEC\|SOCK_NONBLOCK, 0);	1✔
504	assert_se(connect_stream >= 0);	1✔
505
506	connect_dgram = socket(AF_UNIX, SOCK_DGRAM\|SOCK_CLOEXEC\|SOCK_NONBLOCK, 0);	1✔
507	assert_se(connect_dgram >= 0);	1✔
508
509	connect_seqpacket = socket(AF_UNIX, SOCK_SEQPACKET\|SOCK_CLOEXEC\|SOCK_NONBLOCK, 0);	1✔
510	assert_se(connect_seqpacket >= 0);	1✔
511
512	l = sizeof(lsa);	1✔
513	assert_se(getsockname(listen_stream, &lsa.sa, &l) >= 0);	1✔
514	assert_se(connect(connect_stream, &lsa.sa, l) >= 0);	1✔
515
516	l = sizeof(lsa);	1✔
517	assert_se(getsockname(listen_dgram, &lsa.sa, &l) >= 0);	1✔
518	assert_se(connect(connect_dgram, &lsa.sa, l) >= 0);	1✔
519
520	l = sizeof(lsa);	1✔
521	assert_se(getsockname(listen_seqpacket, &lsa.sa, &l) >= 0);	1✔
522	assert_se(connect(connect_seqpacket, &lsa.sa, l) >= 0);	1✔
523
524	assert_se(flush_accept(listen_stream) >= 0);	1✔
525	assert_se(flush_accept(listen_dgram) < 0);	1✔
526	assert_se(flush_accept(listen_seqpacket) >= 0);	1✔
527	}	1✔
528
529	TEST(ipv6_enabled) {	1✔
530	log_info("IPv6 supported: %s", yes_no(socket_ipv6_is_supported()));	2✔
531	log_info("IPv6 enabled: %s", yes_no(socket_ipv6_is_enabled()));	2✔
532	}	1✔
533
534	TEST(sockaddr_un_set_path) {	1✔
535	_cleanup_(rm_rf_physical_and_freep) char *t = NULL;	1✔
UNCOV 536	_cleanup_(unlink_and_freep) char *sh = NULL;	×
537	_cleanup_free_ char *j = NULL;	1✔
538	union sockaddr_union sa;	1✔
539	_cleanup_close_ int fd1, fd2, fd3;	3✔
540
541	assert_se(mkdtemp_malloc("/tmp/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaXXXXXX", &t) >= 0);	1✔
542	assert_se(strlen(t) > SUN_PATH_LEN);	1✔
543
544	assert_se(j = path_join(t, "sock"));	1✔
545	assert_se(sockaddr_un_set_path(&sa.un, j) == -ENAMETOOLONG); /* too long for AF_UNIX socket */	1✔
546
547	assert_se(asprintf(&sh, "/tmp/%" PRIx64, random_u64()) >= 0);	1✔
548	assert_se(symlink(t, sh) >= 0); /* create temporary symlink, to access it anyway */	1✔
549
550	free(j);	1✔
551	assert_se(j = path_join(sh, "sock"));	1✔
552	assert_se(sockaddr_un_set_path(&sa.un, j) >= 0);	1✔
553
554	fd1 = socket(AF_UNIX, SOCK_STREAM\|SOCK_CLOEXEC, 0);	1✔
555	assert_se(fd1 >= 0);	1✔
556	assert_se(bind(fd1, &sa.sa, sockaddr_len(&sa)) >= 0);	1✔
557	assert_se(listen(fd1, 1) >= 0);	1✔
558
559	sh = unlink_and_free(sh); /* remove temporary symlink */	1✔
560
561	fd2 = socket(AF_UNIX, SOCK_STREAM\|SOCK_CLOEXEC, 0);	1✔
562	assert_se(fd2 >= 0);	1✔
563	assert_se(connect(fd2, &sa.sa, sockaddr_len(&sa)) < 0);	1✔
564	assert_se(errno == ENOENT); /* we removed the symlink, must fail */	1✔
565
566	free(j);	1✔
567	assert_se(j = path_join(t, "sock"));	1✔
568
569	fd3 = open(j, O_CLOEXEC\|O_PATH\|O_NOFOLLOW);	1✔
570	assert_se(fd3 > 0);	1✔
571	assert_se(sockaddr_un_set_path(&sa.un, FORMAT_PROC_FD_PATH(fd3)) >= 0); /* connect via O_PATH instead, circumventing 108ch limit */	1✔
572
573	assert_se(connect(fd2, &sa.sa, sockaddr_len(&sa)) >= 0);	1✔
574	}	1✔
575
576	TEST(getpeerpidref) {	1✔
577	_cleanup_close_pair_ int fd[2] = EBADF_PAIR;	2✔
578
579	ASSERT_OK(socketpair(AF_UNIX, SOCK_STREAM\|SOCK_CLOEXEC, 0, fd));	1✔
580
581	_cleanup_(pidref_done) PidRef pidref0 = PIDREF_NULL, pidref1 = PIDREF_NULL, pidref_self = PIDREF_NULL, pidref_pid1 = PIDREF_NULL;	1✔
582	ASSERT_OK(getpeerpidref(fd[0], &pidref0));	1✔
583	ASSERT_OK(getpeerpidref(fd[1], &pidref1));	1✔
584
585	ASSERT_OK(pidref_set_self(&pidref_self));	1✔
586	ASSERT_OK(pidref_set_pid(&pidref_pid1, 1));	1✔
587
588	ASSERT_TRUE(pidref_equal(&pidref0, &pidref1));	1✔
589	ASSERT_TRUE(pidref_equal(&pidref0, &pidref_self));	1✔
590	ASSERT_TRUE(pidref_equal(&pidref1, &pidref_self));	1✔
591
592	ASSERT_TRUE(!pidref_equal(&pidref_self, &pidref_pid1));	1✔
593	ASSERT_TRUE(!pidref_equal(&pidref1, &pidref_pid1));	1✔
594	ASSERT_TRUE(!pidref_equal(&pidref0, &pidref_pid1));	1✔
595	}	1✔
596
597	DEFINE_TEST_MAIN(LOG_DEBUG);	1✔

systemd / systemd / 20669300594

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