static int kdbus_test_broadcast_quota(struct kdbus_test_env *env) { int ret; uint64_t offset; unsigned int i; struct kdbus_msg *msg; struct kdbus_conn *privileged_a; struct kdbus_conn *privileged_b; struct kdbus_conn *holder; struct kdbus_policy_access access = { .type = KDBUS_POLICY_ACCESS_WORLD, .id = getuid(), .access = KDBUS_POLICY_TALK, }; uint64_t expected_cookie = time(NULL) ^ 0xdeadbeef; holder = kdbus_hello_registrar(env->buspath, "com.example.a", &access, 1, KDBUS_HELLO_POLICY_HOLDER); ASSERT_RETURN(holder); privileged_a = kdbus_hello(env->buspath, 0, NULL, 0); ASSERT_RETURN(privileged_a); privileged_b = kdbus_hello(env->buspath, 0, NULL, 0); ASSERT_RETURN(privileged_b); /* Acquire name with access world so they can talk to us */ ret = kdbus_name_acquire(privileged_a, "com.example.a", NULL); ASSERT_RETURN(ret >= 0); /* Broadcast matches for privileged connections */ ret = kdbus_add_match_empty(privileged_a); ASSERT_RETURN(ret == 0); ret = kdbus_add_match_empty(privileged_b); ASSERT_RETURN(ret == 0); /* * We start accouting after KDBUS_CONN_MAX_MSGS_UNACCOUNTED * so the first sender will at least send * KDBUS_CONN_MAX_MSGS_UNACCOUNTED + KDBUS_CONN_MAX_MSGS_PER_USER */ ret = RUN_UNPRIVILEGED_CONN(unpriv, env->buspath, ({ unsigned int cnt; cnt = kdbus_fill_conn_queue(unpriv, KDBUS_DST_ID_BROADCAST, MAX_USER_TOTAL_MSGS); ASSERT_EXIT(cnt == MAX_USER_TOTAL_MSGS); /* * Another message that will trigger the lost count * * Broadcasts always succeed */ ret = kdbus_msg_send(unpriv, NULL, 0xdeadbeef, 0, 0, 0, KDBUS_DST_ID_BROADCAST); ASSERT_EXIT(ret == 0); }));
int kdbus_test_message_basic(struct kdbus_test_env *env) { struct kdbus_conn *conn; struct kdbus_conn *sender; struct kdbus_msg *msg; uint64_t cookie = 0x1234abcd5678eeff; uint64_t offset; int ret; sender = kdbus_hello(env->buspath, 0, NULL, 0); ASSERT_RETURN(sender != NULL); /* create a 2nd connection */ conn = kdbus_hello(env->buspath, 0, NULL, 0); ASSERT_RETURN(conn != NULL); ret = kdbus_add_match_empty(conn); ASSERT_RETURN(ret == 0); ret = kdbus_add_match_empty(sender); ASSERT_RETURN(ret == 0); /* send over 1st connection */ ret = kdbus_msg_send(sender, NULL, cookie, 0, 0, 0, KDBUS_DST_ID_BROADCAST); ASSERT_RETURN(ret == 0); /* Make sure that we do not get our own broadcasts */ ret = kdbus_msg_recv(sender, NULL, NULL); ASSERT_RETURN(ret == -EAGAIN); /* ... and receive on the 2nd */ ret = kdbus_msg_recv_poll(conn, 100, &msg, &offset); ASSERT_RETURN(ret == 0); ASSERT_RETURN(msg->cookie == cookie); kdbus_msg_free(msg); ret = kdbus_free(conn, offset); ASSERT_RETURN(ret == 0); kdbus_conn_free(sender); kdbus_conn_free(conn); return TEST_OK; }
int kdbus_test_byebye(struct kdbus_test_env *env) { struct kdbus_conn *conn; struct kdbus_cmd_recv recv = {}; int ret; /* create a 2nd connection */ conn = kdbus_hello(env->buspath, 0, NULL, 0); ASSERT_RETURN(conn != NULL); ret = kdbus_add_match_empty(conn); ASSERT_RETURN(ret == 0); ret = kdbus_add_match_empty(env->conn); ASSERT_RETURN(ret == 0); /* send over 1st connection */ ret = kdbus_msg_send(env->conn, NULL, 0, 0, 0, 0, KDBUS_DST_ID_BROADCAST); ASSERT_RETURN(ret == 0); /* say byebye on the 2nd, which must fail */ ret = ioctl(conn->fd, KDBUS_CMD_BYEBYE, 0); ASSERT_RETURN(ret == -1 && errno == EBUSY); /* receive the message */ ret = ioctl(conn->fd, KDBUS_CMD_MSG_RECV, &recv); ASSERT_RETURN(ret == 0); ret = kdbus_free(conn, recv.offset); ASSERT_RETURN(ret == 0); /* and try again */ ret = ioctl(conn->fd, KDBUS_CMD_BYEBYE, 0); ASSERT_RETURN(ret == 0); /* a 2nd try should result in -EALREADY */ ret = ioctl(conn->fd, KDBUS_CMD_BYEBYE, 0); ASSERT_RETURN(ret == -1 && errno == EOPNOTSUPP); kdbus_conn_free(conn); return TEST_OK; }
/** * Create new threads for receiving from multiple senders, * The 'conn_db' will be populated by newly created connections. * Caller should free all allocated connections. * * return 0 on success, negative errno on failure. */ static int kdbus_recv_in_threads(const char *bus, const char *name, struct kdbus_conn **conn_db) { int ret; unsigned int i, tid; unsigned long dst_id; unsigned long cookie = 1; unsigned int thread_nr = MAX_CONN - 1; pthread_t thread_id[MAX_CONN - 1] = {'\0'}; dst_id = name ? KDBUS_DST_ID_NAME : conn_db[0]->id; for (tid = 0, i = 1; tid < thread_nr; tid++, i++) { ret = pthread_create(&thread_id[tid], NULL, kdbus_recv_echo, (void *)conn_db[0]); if (ret < 0) { ret = -errno; kdbus_printf("error pthread_create: %d err %d (%m)\n", ret, errno); break; } /* just free before re-using */ kdbus_conn_free(conn_db[i]); conn_db[i] = NULL; /* We need to create connections here */ conn_db[i] = kdbus_hello(bus, 0, NULL, 0); if (!conn_db[i]) { ret = -errno; break; } ret = kdbus_add_match_empty(conn_db[i]); if (ret < 0) break; ret = kdbus_msg_send(conn_db[i], name, cookie++, 0, 0, 0, dst_id); if (ret < 0) break; } for (tid = 0; tid < thread_nr; tid++) { int thread_ret = 0; if (thread_id[tid]) { pthread_join(thread_id[tid], (void *)&thread_ret); if (thread_ret < 0 && ret == 0) ret = thread_ret; } } return ret; }
static int __kdbus_clone_userns_test(const char *bus, struct kdbus_conn *conn, uint64_t grandpa_pid, int signal_fd) { int clone_ret; int ret; struct kdbus_msg *msg = NULL; const struct kdbus_item *item; uint64_t cookie = time(NULL) ^ 0xdeadbeef; struct kdbus_conn *unpriv_conn = NULL; struct kdbus_pids parent_pids = { .pid = getppid(), .tid = getppid(), .ppid = grandpa_pid, }; ret = drop_privileges(UNPRIV_UID, UNPRIV_GID); ASSERT_EXIT(ret == 0); unpriv_conn = kdbus_hello(bus, 0, NULL, 0); ASSERT_EXIT(unpriv_conn); ret = kdbus_add_match_empty(unpriv_conn); ASSERT_EXIT(ret == 0); /* * ping privileged connection from this new unprivileged * one */ ret = kdbus_msg_send(unpriv_conn, NULL, cookie, 0, 0, 0, conn->id); ASSERT_EXIT(ret == 0); /* * Since we just dropped privileges, the dumpable flag * was just cleared which makes the /proc/$clone_child/uid_map * to be owned by root, hence any userns uid mapping will fail * with -EPERM since the mapping will be done by uid 65534. * * To avoid this set the dumpable flag again which makes * procfs update the /proc/$clone_child/ inodes owner to 65534. * * Using this we will be able write to /proc/$clone_child/uid_map * as uid 65534 and map the uid 65534 to 0 inside the user namespace. */ ret = prctl(PR_SET_DUMPABLE, SUID_DUMP_USER); ASSERT_EXIT(ret == 0); /* Make child privileged in its new userns and run tests */ ret = RUN_CLONE_CHILD(&clone_ret, SIGCHLD | CLONE_NEWUSER | CLONE_NEWPID, ({ 0; /* Clone setup, nothing */ }),
int kdbus_test_policy_ns(struct kdbus_test_env *env) { int i; int ret; struct kdbus_conn *activator = NULL; struct kdbus_conn *policy_holder = NULL; char *bus = env->buspath; ret = test_is_capable(CAP_SETUID, CAP_SETGID, -1); ASSERT_RETURN(ret >= 0); /* no enough privileges, SKIP test */ if (!ret) return TEST_SKIP; /* we require user-namespaces */ if (access("/proc/self/uid_map", F_OK) != 0) return TEST_SKIP; /* uids/gids must be mapped */ if (!all_uids_gids_are_mapped()) return TEST_SKIP; conn_db = calloc(MAX_CONN, sizeof(struct kdbus_conn *)); ASSERT_RETURN(conn_db); memset(conn_db, 0, MAX_CONN * sizeof(struct kdbus_conn *)); conn_db[0] = kdbus_hello(bus, 0, NULL, 0); ASSERT_RETURN(conn_db[0]); ret = kdbus_add_match_empty(conn_db[0]); ASSERT_RETURN(ret == 0); ret = kdbus_fork_test_by_id(bus, conn_db, -EPERM, -EPERM); ASSERT_EXIT(ret == 0); ret = kdbus_register_policy_holder(bus, POLICY_NAME, &policy_holder); ASSERT_RETURN(ret == 0); /* Try to register the same name with an activator */ ret = kdbus_register_same_activator(bus, POLICY_NAME, &activator); ASSERT_RETURN(ret == 0); /* Acquire POLICY_NAME */ ret = kdbus_name_acquire(conn_db[0], POLICY_NAME, NULL); ASSERT_RETURN(ret == 0); ret = kdbus_normal_test(bus, POLICY_NAME, conn_db); ASSERT_RETURN(ret == 0); ret = kdbus_list(conn_db[0], KDBUS_LIST_NAMES | KDBUS_LIST_UNIQUE | KDBUS_LIST_ACTIVATORS | KDBUS_LIST_QUEUED); ASSERT_RETURN(ret == 0); ret = kdbus_fork_test(bus, POLICY_NAME, conn_db, EXIT_SUCCESS); ASSERT_RETURN(ret == 0); /* * children connections are able to talk to conn_db[0] since * current POLICY_NAME TALK type is KDBUS_POLICY_ACCESS_WORLD, * so expect EXIT_SUCCESS when sending from child. However, * since the child's connection does not own any well-known * name, The parent connection conn_db[0] should fail with * -EPERM but since it is a privileged bus user the TALK is * allowed. */ ret = kdbus_fork_test_by_id(bus, conn_db, EXIT_SUCCESS, EXIT_SUCCESS); ASSERT_EXIT(ret == 0); /* * Connections that can talk are perhaps being destroyed now. * Restrict the policy and purge cache entries where the * conn_db[0] is the destination. * * Now only connections with uid == 0 are allowed to talk. */ ret = kdbus_set_policy_talk(policy_holder, POLICY_NAME, geteuid(), KDBUS_POLICY_ACCESS_USER); ASSERT_RETURN(ret == 0); /* * Testing connections (FORK+DROP) again: * After setting the policy re-check connections * we expect the children to fail with -EPERM */ ret = kdbus_fork_test(bus, POLICY_NAME, conn_db, -EPERM); ASSERT_RETURN(ret == 0); /* * Now expect that both parent and child to fail. * * Child should fail with -EPERM since we just restricted * the POLICY_NAME TALK to uid 0 and its uid is 65534. * * Since the parent's connection will timeout when receiving * from the child, we never continue. FWIW just put -EPERM. */ ret = kdbus_fork_test_by_id(bus, conn_db, -EPERM, -EPERM); ASSERT_EXIT(ret == 0); /* Check if the name can be reached in a new userns */ ret = kdbus_clone_userns_test(bus, POLICY_NAME, conn_db, -EPERM); ASSERT_RETURN(ret == 0); for (i = 0; i < MAX_CONN; i++) kdbus_conn_free(conn_db[i]); kdbus_conn_free(activator); kdbus_conn_free(policy_holder); free(conn_db); return ret; }
/* Return EXIT_SUCCESS, EXIT_FAILURE or negative errno */ static int __kdbus_clone_userns_test(const char *bus, const char *name, struct kdbus_conn **conn_db, int expected_status) { int efd; pid_t pid; int ret = 0; unsigned int uid = 65534; int status; ret = drop_privileges(uid, uid); ASSERT_RETURN_VAL(ret == 0, ret); /* * Since we just dropped privileges, the dumpable flag was just * cleared which makes the /proc/$clone_child/uid_map to be * owned by root, hence any userns uid mapping will fail with * -EPERM since the mapping will be done by uid 65534. * * To avoid this set the dumpable flag again which makes procfs * update the /proc/$clone_child/ inodes owner to 65534. * * Using this we will be able write to /proc/$clone_child/uid_map * as uid 65534 and map the uid 65534 to 0 inside the user * namespace. */ ret = prctl(PR_SET_DUMPABLE, SUID_DUMP_USER); ASSERT_RETURN_VAL(ret == 0, ret); /* sync parent/child */ efd = eventfd(0, EFD_CLOEXEC); ASSERT_RETURN_VAL(efd >= 0, efd); pid = syscall(__NR_clone, SIGCHLD|CLONE_NEWUSER, NULL); if (pid < 0) { ret = -errno; kdbus_printf("error clone: %d (%m)\n", ret); /* * Normal user not allowed to create userns, * so nothing to worry about ? */ if (ret == -EPERM) { kdbus_printf("-- CLONE_NEWUSER TEST Failed for uid: %u\n" "-- Make sure that your kernel do not allow " "CLONE_NEWUSER for unprivileged users\n" "-- Upstream Commit: " "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5eaf563e\n", uid); ret = 0; } return ret; } if (pid == 0) { struct kdbus_conn *conn_src; eventfd_t event_status = 0; ret = prctl(PR_SET_PDEATHSIG, SIGKILL); ASSERT_EXIT(ret == 0); ret = eventfd_read(efd, &event_status); ASSERT_EXIT(ret >= 0 && event_status == 1); /* ping connection from the new user namespace */ conn_src = kdbus_hello(bus, 0, NULL, 0); ASSERT_EXIT(conn_src); ret = kdbus_add_match_empty(conn_src); ASSERT_EXIT(ret == 0); ret = kdbus_msg_send(conn_src, name, 0xabcd1234, 0, 0, 0, KDBUS_DST_ID_NAME); kdbus_conn_free(conn_src); _exit(ret == expected_status ? EXIT_SUCCESS : EXIT_FAILURE); } ret = userns_map_uid_gid(pid, "0 65534 1", "0 65534 1"); ASSERT_RETURN_VAL(ret == 0, ret); /* Tell child we are ready */ ret = eventfd_write(efd, 1); ASSERT_RETURN_VAL(ret == 0, ret); ret = waitpid(pid, &status, 0); ASSERT_RETURN_VAL(ret >= 0, ret); close(efd); return status == EXIT_SUCCESS ? TEST_OK : TEST_ERR; }
static int kdbus_fork_test_by_id(const char *bus, struct kdbus_conn **conn_db, int parent_status, int child_status) { int ret; pid_t pid; uint64_t cookie = 0x9876ecba; struct kdbus_msg *msg = NULL; uint64_t offset = 0; int status = 0; /* * If the child_status is not EXIT_SUCCESS, then we expect * that sending from the child will fail, thus receiving * from parent must error with -ETIMEDOUT, and vice versa. */ bool parent_timedout = !!child_status; bool child_timedout = !!parent_status; pid = fork(); ASSERT_RETURN_VAL(pid >= 0, pid); if (pid == 0) { struct kdbus_conn *conn_src; ret = prctl(PR_SET_PDEATHSIG, SIGKILL); ASSERT_EXIT(ret == 0); ret = drop_privileges(65534, 65534); ASSERT_EXIT(ret == 0); conn_src = kdbus_hello(bus, 0, NULL, 0); ASSERT_EXIT(conn_src); ret = kdbus_add_match_empty(conn_src); ASSERT_EXIT(ret == 0); /* * child_status is always checked against send * operations, in case it fails always return * EXIT_FAILURE. */ ret = kdbus_msg_send(conn_src, NULL, cookie, 0, 0, 0, conn_db[0]->id); ASSERT_EXIT(ret == child_status); ret = kdbus_msg_recv_poll(conn_src, 100, NULL, NULL); kdbus_conn_free(conn_src); /* * Child kdbus_msg_recv_poll() should timeout since * the parent_status was set to a non EXIT_SUCCESS * value. */ if (child_timedout) _exit(ret == -ETIMEDOUT ? EXIT_SUCCESS : EXIT_FAILURE); _exit(ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } ret = kdbus_msg_recv_poll(conn_db[0], 100, &msg, &offset); /* * If parent_timedout is set then this should fail with * -ETIMEDOUT since the child_status was set to a non * EXIT_SUCCESS value. Otherwise, assume * that kdbus_msg_recv_poll() has succeeded. */ if (parent_timedout) { ASSERT_RETURN_VAL(ret == -ETIMEDOUT, TEST_ERR); /* timedout no need to continue, we don't have the * child connection ID, so just terminate. */ goto out; } else { ASSERT_RETURN_VAL(ret == 0, ret); } ret = kdbus_msg_send(conn_db[0], NULL, ++cookie, 0, 0, 0, msg->src_id); /* * parent_status is checked against send operations, * on failures always return TEST_ERR. */ ASSERT_RETURN_VAL(ret == parent_status, TEST_ERR); kdbus_msg_free(msg); kdbus_free(conn_db[0], offset); out: ret = waitpid(pid, &status, 0); ASSERT_RETURN_VAL(ret >= 0, ret); return (status == EXIT_SUCCESS) ? TEST_OK : TEST_ERR; }
/** * Create new threads for receiving from multiple senders, * The 'conn_db' will be populated by newly created connections. * Caller should free all allocated connections. * * return 0 on success, negative errno on failure. */ static int kdbus_recv_in_threads(const char *bus, const char *name, struct kdbus_conn **conn_db) { int ret; bool pool_full = false; unsigned int sent_packets = 0; unsigned int lost_packets = 0; unsigned int i, tid; unsigned long dst_id; unsigned long cookie = 1; unsigned int thread_nr = MAX_CONN - 1; pthread_t thread_id[MAX_CONN - 1] = {'\0'}; dst_id = name ? KDBUS_DST_ID_NAME : conn_db[0]->id; for (tid = 0, i = 1; tid < thread_nr; tid++, i++) { ret = pthread_create(&thread_id[tid], NULL, kdbus_recv_echo, (void *)conn_db[0]); if (ret < 0) { ret = -errno; kdbus_printf("error pthread_create: %d (%m)\n", ret); break; } /* just free before re-using */ kdbus_conn_free(conn_db[i]); conn_db[i] = NULL; /* We need to create connections here */ conn_db[i] = kdbus_hello(bus, 0, NULL, 0); if (!conn_db[i]) { ret = -errno; break; } ret = kdbus_add_match_empty(conn_db[i]); if (ret < 0) break; ret = kdbus_msg_send(conn_db[i], name, cookie++, 0, 0, 0, dst_id); if (ret < 0) { /* * Receivers are not reading their messages, * not scheduled ?! * * So set the pool full here, perhaps the * connection pool or queue was full, later * recheck receivers errors */ if (ret == -ENOBUFS || ret == -EXFULL) pool_full = true; break; } sent_packets++; } for (tid = 0; tid < thread_nr; tid++) { int thread_ret = 0; if (thread_id[tid]) { pthread_join(thread_id[tid], (void *)&thread_ret); if (thread_ret < 0) { /* Update only if send did not fail */ if (ret == 0) ret = thread_ret; lost_packets++; } } } /* * When sending if we did fail with -ENOBUFS or -EXFULL * then we should have set lost_packet and we should at * least have sent_packets set to KDBUS_CONN_MAX_MSGS_PER_USER */ if (pool_full) { ASSERT_RETURN(lost_packets > 0); /* * We should at least send KDBUS_CONN_MAX_MSGS_PER_USER * * For every send operation we create a thread to * recv the packet, so we keep the queue clean */ ASSERT_RETURN(sent_packets >= KDBUS_CONN_MAX_MSGS_PER_USER); /* * Set ret to zero since we only failed due to * the receiving threads that have not been * scheduled */ ret = 0; } return ret; }
int kdbus_test_activator(struct kdbus_test_env *env) { int ret; struct kdbus_conn *activator; struct pollfd fds[2]; bool activator_done = false; struct kdbus_policy_access access[2]; access[0].type = KDBUS_POLICY_ACCESS_USER; access[0].id = 1001; access[0].access = KDBUS_POLICY_OWN; access[1].type = KDBUS_POLICY_ACCESS_WORLD; access[1].access = KDBUS_POLICY_TALK; activator = kdbus_hello_activator(env->buspath, "foo.test.activator", access, 2); ASSERT_RETURN(activator); ret = kdbus_add_match_empty(env->conn); ASSERT_RETURN(ret == 0); ret = kdbus_name_list(env->conn, KDBUS_NAME_LIST_NAMES | KDBUS_NAME_LIST_UNIQUE | KDBUS_NAME_LIST_ACTIVATORS | KDBUS_NAME_LIST_QUEUED); ASSERT_RETURN(ret == 0); ret = kdbus_msg_send(env->conn, "foo.test.activator", 0xdeafbeef, 0, 0, 0, KDBUS_DST_ID_NAME); ASSERT_RETURN(ret == 0); fds[0].fd = activator->fd; fds[1].fd = env->conn->fd; kdbus_printf("-- entering poll loop ...\n"); for (;;) { int i, nfds = sizeof(fds) / sizeof(fds[0]); for (i = 0; i < nfds; i++) { fds[i].events = POLLIN | POLLPRI; fds[i].revents = 0; } ret = poll(fds, nfds, 3000); ASSERT_RETURN(ret >= 0); ret = kdbus_name_list(env->conn, KDBUS_NAME_LIST_NAMES); ASSERT_RETURN(ret == 0); if ((fds[0].revents & POLLIN) && !activator_done) { kdbus_printf("Starter was called back!\n"); ret = kdbus_name_acquire(env->conn, "foo.test.activator", KDBUS_NAME_REPLACE_EXISTING); ASSERT_RETURN(ret == 0); activator_done = true; } if (fds[1].revents & POLLIN) { kdbus_msg_recv(env->conn, NULL); break; } } kdbus_conn_free(activator); return TEST_OK; }
ASSERT_EXIT(ret == 0); /* Make child privileged in its new userns and run tests */ ret = RUN_CLONE_CHILD(&clone_ret, SIGCHLD | CLONE_NEWUSER | CLONE_NEWPID, ({ 0; /* Clone setup, nothing */ }), ({ eventfd_t event_status = 0; struct kdbus_conn *userns_conn; /* ping connection from the new user namespace */ userns_conn = kdbus_hello(bus, 0, NULL, 0); ASSERT_EXIT(userns_conn); ret = kdbus_add_match_empty(userns_conn); ASSERT_EXIT(ret == 0); cookie++; ret = kdbus_msg_send(userns_conn, NULL, cookie, 0, 0, 0, conn->id); ASSERT_EXIT(ret == 0); /* Parent did send */ ret = eventfd_read(signal_fd, &event_status); ASSERT_RETURN(ret >= 0 && event_status == 1); /* * Receive from privileged connection */ kdbus_printf("Privileged → unprivileged/privileged "
static int interrupt_sync(struct kdbus_conn *conn_src, struct kdbus_conn *conn_dst) { pid_t pid; int ret, status; struct kdbus_msg *msg = NULL; struct sigaction sa = { .sa_handler = nop_handler, .sa_flags = SA_NOCLDSTOP|SA_RESTART, }; cookie++; pid = fork(); ASSERT_RETURN_VAL(pid >= 0, pid); if (pid == 0) { ret = sigaction(SIGINT, &sa, NULL); ASSERT_EXIT(ret == 0); ret = kdbus_msg_send_sync(conn_dst, NULL, cookie, KDBUS_MSG_EXPECT_REPLY, 100000000ULL, 0, conn_src->id, -1); ASSERT_EXIT(ret == -ETIMEDOUT); _exit(EXIT_SUCCESS); } ret = kdbus_msg_recv_poll(conn_src, 100, &msg, NULL); ASSERT_RETURN(ret == 0 && msg->cookie == cookie); kdbus_msg_free(msg); ret = kill(pid, SIGINT); ASSERT_RETURN_VAL(ret == 0, ret); ret = waitpid(pid, &status, 0); ASSERT_RETURN_VAL(ret >= 0, ret); if (WIFSIGNALED(status)) return TEST_ERR; ret = kdbus_msg_recv_poll(conn_src, 100, NULL, NULL); ASSERT_RETURN(ret == -ETIMEDOUT); return (status == EXIT_SUCCESS) ? TEST_OK : TEST_ERR; } static int close_epipe_sync(const char *bus) { pid_t pid; int ret, status; struct kdbus_conn *conn_src; struct kdbus_conn *conn_dst; struct kdbus_msg *msg = NULL; conn_src = kdbus_hello(bus, 0, NULL, 0); ASSERT_RETURN(conn_src); ret = kdbus_add_match_empty(conn_src); ASSERT_RETURN(ret == 0); conn_dst = kdbus_hello(bus, 0, NULL, 0); ASSERT_RETURN(conn_dst); cookie++; pid = fork(); ASSERT_RETURN_VAL(pid >= 0, pid); if (pid == 0) { uint64_t dst_id; /* close our reference */ dst_id = conn_dst->id; kdbus_conn_free(conn_dst); ret = kdbus_msg_recv_poll(conn_src, 100, &msg, NULL); ASSERT_EXIT(ret == 0 && msg->cookie == cookie); ASSERT_EXIT(msg->src_id == dst_id); cookie++; ret = kdbus_msg_send_sync(conn_src, NULL, cookie, KDBUS_MSG_EXPECT_REPLY, 100000000ULL, 0, dst_id, -1); ASSERT_EXIT(ret == -EPIPE); _exit(EXIT_SUCCESS); } ret = kdbus_msg_send(conn_dst, NULL, cookie, 0, 0, 0, KDBUS_DST_ID_BROADCAST); ASSERT_RETURN(ret == 0); cookie++; ret = kdbus_msg_recv_poll(conn_dst, 100, &msg, NULL); ASSERT_RETURN(ret == 0 && msg->cookie == cookie); kdbus_msg_free(msg); /* destroy connection */ kdbus_conn_free(conn_dst); kdbus_conn_free(conn_src); ret = waitpid(pid, &status, 0); ASSERT_RETURN_VAL(ret >= 0, ret); if (!WIFEXITED(status)) return TEST_ERR; return (status == EXIT_SUCCESS) ? TEST_OK : TEST_ERR; }
int kdbus_test_chat(struct kdbus_test_env *env) { int ret, cookie; struct kdbus_conn *conn_a, *conn_b; struct pollfd fds[2]; uint64_t flags; int count; conn_a = kdbus_hello(env->buspath, 0, NULL, 0); conn_b = kdbus_hello(env->buspath, 0, NULL, 0); ASSERT_RETURN(conn_a && conn_b); flags = KDBUS_NAME_ALLOW_REPLACEMENT; ret = kdbus_name_acquire(conn_a, "foo.bar.test", &flags); ASSERT_RETURN(ret == 0); ret = kdbus_name_acquire(conn_a, "foo.bar.baz", NULL); ASSERT_RETURN(ret == 0); flags = KDBUS_NAME_QUEUE; ret = kdbus_name_acquire(conn_b, "foo.bar.baz", &flags); ASSERT_RETURN(ret == 0); ret = kdbus_name_acquire(conn_a, "foo.bar.double", NULL); ASSERT_RETURN(ret == 0); ret = kdbus_name_acquire(conn_a, "foo.bar.double", NULL); ASSERT_RETURN(ret == -EALREADY); ret = kdbus_name_release(conn_a, "foo.bar.double"); ASSERT_RETURN(ret == 0); ret = kdbus_name_release(conn_a, "foo.bar.double"); ASSERT_RETURN(ret == -ESRCH); ret = kdbus_list(conn_b, KDBUS_LIST_UNIQUE | KDBUS_LIST_NAMES | KDBUS_LIST_QUEUED | KDBUS_LIST_ACTIVATORS); ASSERT_RETURN(ret == 0); ret = kdbus_add_match_empty(conn_a); ASSERT_RETURN(ret == 0); ret = kdbus_add_match_empty(conn_b); ASSERT_RETURN(ret == 0); cookie = 0; ret = kdbus_msg_send(conn_b, NULL, 0xc0000000 | cookie, 0, 0, 0, KDBUS_DST_ID_BROADCAST); ASSERT_RETURN(ret == 0); fds[0].fd = conn_a->fd; fds[1].fd = conn_b->fd; kdbus_printf("-- entering poll loop ...\n"); for (count = 0;; count++) { int i, nfds = sizeof(fds) / sizeof(fds[0]); for (i = 0; i < nfds; i++) { fds[i].events = POLLIN | POLLPRI | POLLHUP; fds[i].revents = 0; } ret = poll(fds, nfds, 3000); ASSERT_RETURN(ret >= 0); if (fds[0].revents & POLLIN) { if (count > 2) kdbus_name_release(conn_a, "foo.bar.baz"); ret = kdbus_msg_recv(conn_a, NULL, NULL); ASSERT_RETURN(ret == 0); ret = kdbus_msg_send(conn_a, NULL, 0xc0000000 | cookie++, 0, 0, 0, conn_b->id); ASSERT_RETURN(ret == 0); } if (fds[1].revents & POLLIN) { ret = kdbus_msg_recv(conn_b, NULL, NULL); ASSERT_RETURN(ret == 0); ret = kdbus_msg_send(conn_b, NULL, 0xc0000000 | cookie++, 0, 0, 0, conn_a->id); ASSERT_RETURN(ret == 0); } ret = kdbus_list(conn_b, KDBUS_LIST_UNIQUE | KDBUS_LIST_NAMES | KDBUS_LIST_QUEUED | KDBUS_LIST_ACTIVATORS); ASSERT_RETURN(ret == 0); if (count > 10) break; } kdbus_printf("-- closing bus connections\n"); kdbus_conn_free(conn_a); kdbus_conn_free(conn_b); return TEST_OK; }