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-rw-r--r--tools/testing/selftests/kdbus/test-fd.c789
1 files changed, 0 insertions, 789 deletions
diff --git a/tools/testing/selftests/kdbus/test-fd.c b/tools/testing/selftests/kdbus/test-fd.c
deleted file mode 100644
index 2ae0f5ae8..000000000
--- a/tools/testing/selftests/kdbus/test-fd.c
+++ /dev/null
@@ -1,789 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <time.h>
-#include <fcntl.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <errno.h>
-#include <assert.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-
-#include "kdbus-api.h"
-#include "kdbus-test.h"
-#include "kdbus-util.h"
-#include "kdbus-enum.h"
-
-#define KDBUS_MSG_MAX_ITEMS 128
-#define KDBUS_USER_MAX_CONN 256
-
-/* maximum number of inflight fds in a target queue per user */
-#define KDBUS_CONN_MAX_FDS_PER_USER 16
-
-/* maximum number of memfd items per message */
-#define KDBUS_MSG_MAX_MEMFD_ITEMS 16
-
-static int make_msg_payload_dbus(uint64_t src_id, uint64_t dst_id,
- uint64_t msg_size,
- struct kdbus_msg **msg_dbus)
-{
- struct kdbus_msg *msg;
-
- msg = malloc(msg_size);
- ASSERT_RETURN_VAL(msg, -ENOMEM);
-
- memset(msg, 0, msg_size);
- msg->size = msg_size;
- msg->src_id = src_id;
- msg->dst_id = dst_id;
- msg->payload_type = KDBUS_PAYLOAD_DBUS;
-
- *msg_dbus = msg;
-
- return 0;
-}
-
-static void make_item_memfds(struct kdbus_item *item,
- int *memfds, size_t memfd_size)
-{
- size_t i;
-
- for (i = 0; i < memfd_size; i++) {
- item->type = KDBUS_ITEM_PAYLOAD_MEMFD;
- item->size = KDBUS_ITEM_HEADER_SIZE +
- sizeof(struct kdbus_memfd);
- item->memfd.fd = memfds[i];
- item->memfd.size = sizeof(uint64_t); /* const size */
- item = KDBUS_ITEM_NEXT(item);
- }
-}
-
-static void make_item_fds(struct kdbus_item *item,
- int *fd_array, size_t fd_size)
-{
- size_t i;
- item->type = KDBUS_ITEM_FDS;
- item->size = KDBUS_ITEM_HEADER_SIZE + (sizeof(int) * fd_size);
-
- for (i = 0; i < fd_size; i++)
- item->fds[i] = fd_array[i];
-}
-
-static int memfd_write(const char *name, void *buf, size_t bufsize)
-{
- ssize_t ret;
- int memfd;
-
- memfd = sys_memfd_create(name, 0);
- ASSERT_RETURN_VAL(memfd >= 0, memfd);
-
- ret = write(memfd, buf, bufsize);
- ASSERT_RETURN_VAL(ret == (ssize_t)bufsize, -EAGAIN);
-
- ret = sys_memfd_seal_set(memfd);
- ASSERT_RETURN_VAL(ret == 0, -errno);
-
- return memfd;
-}
-
-static int send_memfds(struct kdbus_conn *conn, uint64_t dst_id,
- int *memfds_array, size_t memfd_count)
-{
- struct kdbus_cmd_send cmd = {};
- struct kdbus_item *item;
- struct kdbus_msg *msg;
- uint64_t size;
- int ret;
-
- size = sizeof(struct kdbus_msg);
- size += memfd_count * KDBUS_ITEM_SIZE(sizeof(struct kdbus_memfd));
-
- if (dst_id == KDBUS_DST_ID_BROADCAST)
- size += KDBUS_ITEM_SIZE(sizeof(struct kdbus_bloom_filter)) + 64;
-
- ret = make_msg_payload_dbus(conn->id, dst_id, size, &msg);
- ASSERT_RETURN_VAL(ret == 0, ret);
-
- item = msg->items;
-
- if (dst_id == KDBUS_DST_ID_BROADCAST) {
- item->type = KDBUS_ITEM_BLOOM_FILTER;
- item->size = KDBUS_ITEM_SIZE(sizeof(struct kdbus_bloom_filter)) + 64;
- item = KDBUS_ITEM_NEXT(item);
-
- msg->flags |= KDBUS_MSG_SIGNAL;
- }
-
- make_item_memfds(item, memfds_array, memfd_count);
-
- cmd.size = sizeof(cmd);
- cmd.msg_address = (uintptr_t)msg;
-
- ret = kdbus_cmd_send(conn->fd, &cmd);
- if (ret < 0) {
- kdbus_printf("error sending message: %d (%m)\n", ret);
- return ret;
- }
-
- free(msg);
- return 0;
-}
-
-static int send_fds(struct kdbus_conn *conn, uint64_t dst_id,
- int *fd_array, size_t fd_count)
-{
- struct kdbus_cmd_send cmd = {};
- struct kdbus_item *item;
- struct kdbus_msg *msg;
- uint64_t size;
- int ret;
-
- size = sizeof(struct kdbus_msg);
- size += KDBUS_ITEM_SIZE(sizeof(int) * fd_count);
-
- if (dst_id == KDBUS_DST_ID_BROADCAST)
- size += KDBUS_ITEM_SIZE(sizeof(struct kdbus_bloom_filter)) + 64;
-
- ret = make_msg_payload_dbus(conn->id, dst_id, size, &msg);
- ASSERT_RETURN_VAL(ret == 0, ret);
-
- item = msg->items;
-
- if (dst_id == KDBUS_DST_ID_BROADCAST) {
- item->type = KDBUS_ITEM_BLOOM_FILTER;
- item->size = KDBUS_ITEM_SIZE(sizeof(struct kdbus_bloom_filter)) + 64;
- item = KDBUS_ITEM_NEXT(item);
-
- msg->flags |= KDBUS_MSG_SIGNAL;
- }
-
- make_item_fds(item, fd_array, fd_count);
-
- cmd.size = sizeof(cmd);
- cmd.msg_address = (uintptr_t)msg;
-
- ret = kdbus_cmd_send(conn->fd, &cmd);
- if (ret < 0) {
- kdbus_printf("error sending message: %d (%m)\n", ret);
- return ret;
- }
-
- free(msg);
- return ret;
-}
-
-static int send_fds_memfds(struct kdbus_conn *conn, uint64_t dst_id,
- int *fds_array, size_t fd_count,
- int *memfds_array, size_t memfd_count)
-{
- struct kdbus_cmd_send cmd = {};
- struct kdbus_item *item;
- struct kdbus_msg *msg;
- uint64_t size;
- int ret;
-
- size = sizeof(struct kdbus_msg);
- size += memfd_count * KDBUS_ITEM_SIZE(sizeof(struct kdbus_memfd));
- size += KDBUS_ITEM_SIZE(sizeof(int) * fd_count);
-
- ret = make_msg_payload_dbus(conn->id, dst_id, size, &msg);
- ASSERT_RETURN_VAL(ret == 0, ret);
-
- item = msg->items;
-
- make_item_fds(item, fds_array, fd_count);
- item = KDBUS_ITEM_NEXT(item);
- make_item_memfds(item, memfds_array, memfd_count);
-
- cmd.size = sizeof(cmd);
- cmd.msg_address = (uintptr_t)msg;
-
- ret = kdbus_cmd_send(conn->fd, &cmd);
- if (ret < 0) {
- kdbus_printf("error sending message: %d (%m)\n", ret);
- return ret;
- }
-
- free(msg);
- return ret;
-}
-
-/* Return the number of received fds */
-static unsigned int kdbus_item_get_nfds(struct kdbus_msg *msg)
-{
- unsigned int fds = 0;
- const struct kdbus_item *item;
-
- KDBUS_ITEM_FOREACH(item, msg, items) {
- switch (item->type) {
- case KDBUS_ITEM_FDS: {
- fds += (item->size - KDBUS_ITEM_HEADER_SIZE) /
- sizeof(int);
- break;
- }
-
- case KDBUS_ITEM_PAYLOAD_MEMFD:
- fds++;
- break;
-
- default:
- break;
- }
- }
-
- return fds;
-}
-
-static struct kdbus_msg *
-get_kdbus_msg_with_fd(struct kdbus_conn *conn_src,
- uint64_t dst_id, uint64_t cookie, int fd)
-{
- int ret;
- uint64_t size;
- struct kdbus_item *item;
- struct kdbus_msg *msg;
-
- size = sizeof(struct kdbus_msg);
- if (fd >= 0)
- size += KDBUS_ITEM_SIZE(sizeof(int));
-
- ret = make_msg_payload_dbus(conn_src->id, dst_id, size, &msg);
- ASSERT_RETURN_VAL(ret == 0, NULL);
-
- msg->cookie = cookie;
-
- if (fd >= 0) {
- item = msg->items;
-
- make_item_fds(item, (int *)&fd, 1);
- }
-
- return msg;
-}
-
-static int kdbus_test_no_fds(struct kdbus_test_env *env,
- int *fds, int *memfd)
-{
- pid_t pid;
- int ret, status;
- uint64_t cookie;
- int connfd1, connfd2;
- struct kdbus_msg *msg, *msg_sync_reply;
- struct kdbus_cmd_hello hello;
- struct kdbus_conn *conn_src, *conn_dst, *conn_dummy;
- struct kdbus_cmd_send cmd = {};
- struct kdbus_cmd_free cmd_free = {};
-
- conn_src = kdbus_hello(env->buspath, 0, NULL, 0);
- ASSERT_RETURN(conn_src);
-
- connfd1 = open(env->buspath, O_RDWR|O_CLOEXEC);
- ASSERT_RETURN(connfd1 >= 0);
-
- connfd2 = open(env->buspath, O_RDWR|O_CLOEXEC);
- ASSERT_RETURN(connfd2 >= 0);
-
- /*
- * Create connections without KDBUS_HELLO_ACCEPT_FD
- * to test if send fd operations are blocked
- */
- conn_dst = malloc(sizeof(*conn_dst));
- ASSERT_RETURN(conn_dst);
-
- conn_dummy = malloc(sizeof(*conn_dummy));
- ASSERT_RETURN(conn_dummy);
-
- memset(&hello, 0, sizeof(hello));
- hello.size = sizeof(struct kdbus_cmd_hello);
- hello.pool_size = POOL_SIZE;
- hello.attach_flags_send = _KDBUS_ATTACH_ALL;
-
- ret = kdbus_cmd_hello(connfd1, &hello);
- ASSERT_RETURN(ret == 0);
-
- cmd_free.size = sizeof(cmd_free);
- cmd_free.offset = hello.offset;
- ret = kdbus_cmd_free(connfd1, &cmd_free);
- ASSERT_RETURN(ret >= 0);
-
- conn_dst->fd = connfd1;
- conn_dst->id = hello.id;
-
- memset(&hello, 0, sizeof(hello));
- hello.size = sizeof(struct kdbus_cmd_hello);
- hello.pool_size = POOL_SIZE;
- hello.attach_flags_send = _KDBUS_ATTACH_ALL;
-
- ret = kdbus_cmd_hello(connfd2, &hello);
- ASSERT_RETURN(ret == 0);
-
- cmd_free.size = sizeof(cmd_free);
- cmd_free.offset = hello.offset;
- ret = kdbus_cmd_free(connfd2, &cmd_free);
- ASSERT_RETURN(ret >= 0);
-
- conn_dummy->fd = connfd2;
- conn_dummy->id = hello.id;
-
- conn_dst->buf = mmap(NULL, POOL_SIZE, PROT_READ,
- MAP_SHARED, connfd1, 0);
- ASSERT_RETURN(conn_dst->buf != MAP_FAILED);
-
- conn_dummy->buf = mmap(NULL, POOL_SIZE, PROT_READ,
- MAP_SHARED, connfd2, 0);
- ASSERT_RETURN(conn_dummy->buf != MAP_FAILED);
-
- /*
- * Send fds to connection that do not accept fd passing
- */
- ret = send_fds(conn_src, conn_dst->id, fds, 1);
- ASSERT_RETURN(ret == -ECOMM);
-
- /*
- * memfd are kdbus payload
- */
- ret = send_memfds(conn_src, conn_dst->id, memfd, 1);
- ASSERT_RETURN(ret == 0);
-
- ret = kdbus_msg_recv_poll(conn_dst, 100, NULL, NULL);
- ASSERT_RETURN(ret == 0);
-
- cookie = time(NULL);
-
- pid = fork();
- ASSERT_RETURN_VAL(pid >= 0, pid);
-
- if (pid == 0) {
- struct timespec now;
-
- /*
- * A sync send/reply to a connection that do not
- * accept fds should fail if it contains an fd
- */
- msg_sync_reply = get_kdbus_msg_with_fd(conn_dst,
- conn_dummy->id,
- cookie, fds[0]);
- ASSERT_EXIT(msg_sync_reply);
-
- ret = clock_gettime(CLOCK_MONOTONIC_COARSE, &now);
- ASSERT_EXIT(ret == 0);
-
- msg_sync_reply->timeout_ns = now.tv_sec * 1000000000ULL +
- now.tv_nsec + 100000000ULL;
- msg_sync_reply->flags = KDBUS_MSG_EXPECT_REPLY;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.size = sizeof(cmd);
- cmd.msg_address = (uintptr_t)msg_sync_reply;
- cmd.flags = KDBUS_SEND_SYNC_REPLY;
-
- ret = kdbus_cmd_send(conn_dst->fd, &cmd);
- ASSERT_EXIT(ret == -ECOMM);
-
- /*
- * Now send a normal message, but the sync reply
- * will fail since it contains an fd that the
- * original sender do not want.
- *
- * The original sender will fail with -ETIMEDOUT
- */
- cookie++;
- ret = kdbus_msg_send_sync(conn_dst, NULL, cookie,
- KDBUS_MSG_EXPECT_REPLY,
- 5000000000ULL, 0, conn_src->id, -1);
- ASSERT_EXIT(ret == -EREMOTEIO);
-
- cookie++;
- ret = kdbus_msg_recv_poll(conn_dst, 100, &msg, NULL);
- ASSERT_EXIT(ret == 0);
- ASSERT_EXIT(msg->cookie == cookie);
-
- free(msg_sync_reply);
- kdbus_msg_free(msg);
-
- _exit(EXIT_SUCCESS);
- }
-
- ret = kdbus_msg_recv_poll(conn_dummy, 100, NULL, NULL);
- ASSERT_RETURN(ret == -ETIMEDOUT);
-
- cookie++;
- ret = kdbus_msg_recv_poll(conn_src, 100, &msg, NULL);
- ASSERT_RETURN(ret == 0 && msg->cookie == cookie);
-
- kdbus_msg_free(msg);
-
- /*
- * Try to reply with a kdbus connection handle, this should
- * fail with -EOPNOTSUPP
- */
- msg_sync_reply = get_kdbus_msg_with_fd(conn_src,
- conn_dst->id,
- cookie, conn_dst->fd);
- ASSERT_RETURN(msg_sync_reply);
-
- msg_sync_reply->cookie_reply = cookie;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.size = sizeof(cmd);
- cmd.msg_address = (uintptr_t)msg_sync_reply;
-
- ret = kdbus_cmd_send(conn_src->fd, &cmd);
- ASSERT_RETURN(ret == -EOPNOTSUPP);
-
- free(msg_sync_reply);
-
- /*
- * Try to reply with a normal fd, this should fail even
- * if the response is a sync reply
- *
- * From the sender view we fail with -ECOMM
- */
- msg_sync_reply = get_kdbus_msg_with_fd(conn_src,
- conn_dst->id,
- cookie, fds[0]);
- ASSERT_RETURN(msg_sync_reply);
-
- msg_sync_reply->cookie_reply = cookie;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.size = sizeof(cmd);
- cmd.msg_address = (uintptr_t)msg_sync_reply;
-
- ret = kdbus_cmd_send(conn_src->fd, &cmd);
- ASSERT_RETURN(ret == -ECOMM);
-
- free(msg_sync_reply);
-
- /*
- * Resend another normal message and check if the queue
- * is clear
- */
- cookie++;
- ret = kdbus_msg_send(conn_src, NULL, cookie, 0, 0, 0,
- conn_dst->id);
- ASSERT_RETURN(ret == 0);
-
- ret = waitpid(pid, &status, 0);
- ASSERT_RETURN_VAL(ret >= 0, ret);
-
- kdbus_conn_free(conn_dummy);
- kdbus_conn_free(conn_dst);
- kdbus_conn_free(conn_src);
-
- return (status == EXIT_SUCCESS) ? TEST_OK : TEST_ERR;
-}
-
-static int kdbus_send_multiple_fds(struct kdbus_conn *conn_src,
- struct kdbus_conn *conn_dst)
-{
- int ret, i;
- unsigned int nfds;
- int fds[KDBUS_CONN_MAX_FDS_PER_USER + 1];
- int memfds[KDBUS_MSG_MAX_ITEMS + 1];
- struct kdbus_msg *msg;
- uint64_t dummy_value;
-
- dummy_value = time(NULL);
-
- for (i = 0; i < KDBUS_CONN_MAX_FDS_PER_USER + 1; i++) {
- fds[i] = open("/dev/null", O_RDWR|O_CLOEXEC);
- ASSERT_RETURN_VAL(fds[i] >= 0, -errno);
- }
-
- /* Send KDBUS_CONN_MAX_FDS_PER_USER with one more fd */
- ret = send_fds(conn_src, conn_dst->id, fds,
- KDBUS_CONN_MAX_FDS_PER_USER + 1);
- ASSERT_RETURN(ret == -EMFILE);
-
- /* Retry with the correct KDBUS_CONN_MAX_FDS_PER_USER */
- ret = send_fds(conn_src, conn_dst->id, fds,
- KDBUS_CONN_MAX_FDS_PER_USER);
- ASSERT_RETURN(ret == 0);
-
- ret = kdbus_msg_recv(conn_dst, &msg, NULL);
- ASSERT_RETURN(ret == 0);
-
- /* Check we got the right number of fds */
- nfds = kdbus_item_get_nfds(msg);
- ASSERT_RETURN(nfds == KDBUS_CONN_MAX_FDS_PER_USER);
-
- kdbus_msg_free(msg);
-
- for (i = 0; i < KDBUS_MSG_MAX_ITEMS + 1; i++, dummy_value++) {
- memfds[i] = memfd_write("memfd-name",
- &dummy_value,
- sizeof(dummy_value));
- ASSERT_RETURN_VAL(memfds[i] >= 0, memfds[i]);
- }
-
- /* Send KDBUS_MSG_MAX_ITEMS with one more memfd */
- ret = send_memfds(conn_src, conn_dst->id,
- memfds, KDBUS_MSG_MAX_ITEMS + 1);
- ASSERT_RETURN(ret == -E2BIG);
-
- ret = send_memfds(conn_src, conn_dst->id,
- memfds, KDBUS_MSG_MAX_MEMFD_ITEMS + 1);
- ASSERT_RETURN(ret == -E2BIG);
-
- /* Retry with the correct KDBUS_MSG_MAX_ITEMS */
- ret = send_memfds(conn_src, conn_dst->id,
- memfds, KDBUS_MSG_MAX_MEMFD_ITEMS);
- ASSERT_RETURN(ret == 0);
-
- ret = kdbus_msg_recv(conn_dst, &msg, NULL);
- ASSERT_RETURN(ret == 0);
-
- /* Check we got the right number of fds */
- nfds = kdbus_item_get_nfds(msg);
- ASSERT_RETURN(nfds == KDBUS_MSG_MAX_MEMFD_ITEMS);
-
- kdbus_msg_free(msg);
-
-
- /*
- * Combine multiple KDBUS_CONN_MAX_FDS_PER_USER+1 fds and
- * 10 memfds
- */
- ret = send_fds_memfds(conn_src, conn_dst->id,
- fds, KDBUS_CONN_MAX_FDS_PER_USER + 1,
- memfds, 10);
- ASSERT_RETURN(ret == -EMFILE);
-
- ret = kdbus_msg_recv(conn_dst, NULL, NULL);
- ASSERT_RETURN(ret == -EAGAIN);
-
- /*
- * Combine multiple KDBUS_CONN_MAX_FDS_PER_USER fds and
- * (128 - 1) + 1 memfds, all fds take one item, while each
- * memfd takes one item
- */
- ret = send_fds_memfds(conn_src, conn_dst->id,
- fds, KDBUS_CONN_MAX_FDS_PER_USER,
- memfds, (KDBUS_MSG_MAX_ITEMS - 1) + 1);
- ASSERT_RETURN(ret == -E2BIG);
-
- ret = send_fds_memfds(conn_src, conn_dst->id,
- fds, KDBUS_CONN_MAX_FDS_PER_USER,
- memfds, KDBUS_MSG_MAX_MEMFD_ITEMS + 1);
- ASSERT_RETURN(ret == -E2BIG);
-
- ret = kdbus_msg_recv(conn_dst, NULL, NULL);
- ASSERT_RETURN(ret == -EAGAIN);
-
- /*
- * Send KDBUS_CONN_MAX_FDS_PER_USER fds +
- * KDBUS_MSG_MAX_MEMFD_ITEMS memfds
- */
- ret = send_fds_memfds(conn_src, conn_dst->id,
- fds, KDBUS_CONN_MAX_FDS_PER_USER,
- memfds, KDBUS_MSG_MAX_MEMFD_ITEMS);
- ASSERT_RETURN(ret == 0);
-
- ret = kdbus_msg_recv(conn_dst, &msg, NULL);
- ASSERT_RETURN(ret == 0);
-
- /* Check we got the right number of fds */
- nfds = kdbus_item_get_nfds(msg);
- ASSERT_RETURN(nfds == KDBUS_CONN_MAX_FDS_PER_USER +
- KDBUS_MSG_MAX_MEMFD_ITEMS);
-
- kdbus_msg_free(msg);
-
-
- /*
- * Re-send fds + memfds, close them, but do not receive them
- * and try to queue more
- */
- ret = send_fds_memfds(conn_src, conn_dst->id,
- fds, KDBUS_CONN_MAX_FDS_PER_USER,
- memfds, KDBUS_MSG_MAX_MEMFD_ITEMS);
- ASSERT_RETURN(ret == 0);
-
- /* close old references and get a new ones */
- for (i = 0; i < KDBUS_CONN_MAX_FDS_PER_USER + 1; i++) {
- close(fds[i]);
- fds[i] = open("/dev/null", O_RDWR|O_CLOEXEC);
- ASSERT_RETURN_VAL(fds[i] >= 0, -errno);
- }
-
- /* should fail since we have already fds in the queue */
- ret = send_fds(conn_src, conn_dst->id, fds,
- KDBUS_CONN_MAX_FDS_PER_USER);
- ASSERT_RETURN(ret == -EMFILE);
-
- /* This should succeed */
- ret = send_memfds(conn_src, conn_dst->id,
- memfds, KDBUS_MSG_MAX_MEMFD_ITEMS);
- ASSERT_RETURN(ret == 0);
-
- ret = kdbus_msg_recv(conn_dst, &msg, NULL);
- ASSERT_RETURN(ret == 0);
-
- nfds = kdbus_item_get_nfds(msg);
- ASSERT_RETURN(nfds == KDBUS_CONN_MAX_FDS_PER_USER +
- KDBUS_MSG_MAX_MEMFD_ITEMS);
-
- kdbus_msg_free(msg);
-
- ret = kdbus_msg_recv(conn_dst, &msg, NULL);
- ASSERT_RETURN(ret == 0);
-
- nfds = kdbus_item_get_nfds(msg);
- ASSERT_RETURN(nfds == KDBUS_MSG_MAX_MEMFD_ITEMS);
-
- kdbus_msg_free(msg);
-
- ret = kdbus_msg_recv(conn_dst, NULL, NULL);
- ASSERT_RETURN(ret == -EAGAIN);
-
- for (i = 0; i < KDBUS_CONN_MAX_FDS_PER_USER + 1; i++)
- close(fds[i]);
-
- for (i = 0; i < KDBUS_MSG_MAX_ITEMS + 1; i++)
- close(memfds[i]);
-
- return 0;
-}
-
-int kdbus_test_fd_passing(struct kdbus_test_env *env)
-{
- struct kdbus_conn *conn_src, *conn_dst;
- const char *str = "stackenblocken";
- const struct kdbus_item *item;
- struct kdbus_msg *msg;
- unsigned int i;
- uint64_t now;
- int fds_conn[2];
- int sock_pair[2];
- int fds[2];
- int memfd;
- int ret;
-
- now = (uint64_t) time(NULL);
-
- /* create two connections */
- conn_src = kdbus_hello(env->buspath, 0, NULL, 0);
- conn_dst = kdbus_hello(env->buspath, 0, NULL, 0);
- ASSERT_RETURN(conn_src && conn_dst);
-
- fds_conn[0] = conn_src->fd;
- fds_conn[1] = conn_dst->fd;
-
- ret = socketpair(AF_UNIX, SOCK_STREAM, 0, sock_pair);
- ASSERT_RETURN(ret == 0);
-
- /* Setup memfd */
- memfd = memfd_write("memfd-name", &now, sizeof(now));
- ASSERT_RETURN(memfd >= 0);
-
- /* Setup pipes */
- ret = pipe(fds);
- ASSERT_RETURN(ret == 0);
-
- i = write(fds[1], str, strlen(str));
- ASSERT_RETURN(i == strlen(str));
-
- /*
- * Try to ass the handle of a connection as message payload.
- * This must fail.
- */
- ret = send_fds(conn_src, conn_dst->id, fds_conn, 2);
- ASSERT_RETURN(ret == -ENOTSUP);
-
- ret = send_fds(conn_dst, conn_src->id, fds_conn, 2);
- ASSERT_RETURN(ret == -ENOTSUP);
-
- ret = send_fds(conn_src, conn_dst->id, sock_pair, 2);
- ASSERT_RETURN(ret == -ENOTSUP);
-
- /*
- * Send fds and memfds to connection that do not accept fds
- */
- ret = kdbus_test_no_fds(env, fds, (int *)&memfd);
- ASSERT_RETURN(ret == 0);
-
- /* Try to broadcast file descriptors. This must fail. */
- ret = send_fds(conn_src, KDBUS_DST_ID_BROADCAST, fds, 1);
- ASSERT_RETURN(ret == -ENOTUNIQ);
-
- /* Try to broadcast memfd. This must succeed. */
- ret = send_memfds(conn_src, KDBUS_DST_ID_BROADCAST, (int *)&memfd, 1);
- ASSERT_RETURN(ret == 0);
-
- /* Open code this loop */
-loop_send_fds:
-
- /*
- * Send the read end of the pipe and close it.
- */
- ret = send_fds(conn_src, conn_dst->id, fds, 1);
- ASSERT_RETURN(ret == 0);
- close(fds[0]);
-
- ret = kdbus_msg_recv(conn_dst, &msg, NULL);
- ASSERT_RETURN(ret == 0);
-
- KDBUS_ITEM_FOREACH(item, msg, items) {
- if (item->type == KDBUS_ITEM_FDS) {
- char tmp[14];
- int nfds = (item->size - KDBUS_ITEM_HEADER_SIZE) /
- sizeof(int);
- ASSERT_RETURN(nfds == 1);
-
- i = read(item->fds[0], tmp, sizeof(tmp));
- if (i != 0) {
- ASSERT_RETURN(i == sizeof(tmp));
- ASSERT_RETURN(memcmp(tmp, str, sizeof(tmp)) == 0);
-
- /* Write EOF */
- close(fds[1]);
-
- /*
- * Resend the read end of the pipe,
- * the receiver still holds a reference
- * to it...
- */
- goto loop_send_fds;
- }
-
- /* Got EOF */
-
- /*
- * Close the last reference to the read end
- * of the pipe, other references are
- * automatically closed just after send.
- */
- close(item->fds[0]);
- }
- }
-
- /*
- * Try to resend the read end of the pipe. Must fail with
- * -EBADF since both the sender and receiver closed their
- * references to it. We assume the above since sender and
- * receiver are on the same process.
- */
- ret = send_fds(conn_src, conn_dst->id, fds, 1);
- ASSERT_RETURN(ret == -EBADF);
-
- /* Then we clear out received any data... */
- kdbus_msg_free(msg);
-
- ret = kdbus_send_multiple_fds(conn_src, conn_dst);
- ASSERT_RETURN(ret == 0);
-
- close(sock_pair[0]);
- close(sock_pair[1]);
- close(memfd);
-
- kdbus_conn_free(conn_src);
- kdbus_conn_free(conn_dst);
-
- return TEST_OK;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-12 10:12:28 +0000