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/*
* Copyright (c) 2006-2026, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "tc_af_unix.h"
static void tc_af_unix_rights_transfer(void)
{
char data;
char payload;
int message_flags;
int pipe_fds[2][2];
int received_fds[2];
int send_fds[2];
int sockets[2];
int type_index;
int types[2] = { SOCK_DGRAM, SOCK_STREAM };
size_t fd_count;
for (type_index = 0; type_index < 2; type_index++)
{
received_fds[0] = -1;
received_fds[1] = -1;
pipe_fds[0][0] = -1;
pipe_fds[0][1] = -1;
pipe_fds[1][0] = -1;
pipe_fds[1][1] = -1;
sockets[0] = -1;
sockets[1] = -1;
uassert_int_equal(socketpair(AF_UNIX, types[type_index], 0, sockets),
0);
uassert_int_equal(pipe(pipe_fds[0]), 0);
uassert_int_equal(pipe(pipe_fds[1]), 0);
if (sockets[0] < 0 || pipe_fds[0][0] < 0 || pipe_fds[1][0] < 0)
{
goto __iteration_exit;
}
uassert_int_equal(write(pipe_fds[0][1], "a", 1), 1);
uassert_int_equal(write(pipe_fds[1][1], "b", 1), 1);
send_fds[0] = pipe_fds[0][0];
send_fds[1] = pipe_fds[1][0];
uassert_int_equal(tc_af_unix_send_rights(sockets[0], send_fds, 2, 'r'),
1);
tc_af_unix_close(&pipe_fds[0][0]);
tc_af_unix_close(&pipe_fds[1][0]);
fd_count = 0;
message_flags = 0;
uassert_int_equal(tc_af_unix_receive_rights(
sockets[1], 0, CMSG_SPACE(2 * sizeof(int)),
received_fds, &fd_count, &message_flags,
&payload),
1);
uassert_int_equal(payload, 'r');
uassert_int_equal(fd_count, 2);
uassert_int_equal(message_flags & MSG_CTRUNC, 0);
uassert_int_equal(read(received_fds[0], &data, 1), 1);
uassert_int_equal(data, 'a');
uassert_int_equal(read(received_fds[1], &data, 1), 1);
uassert_int_equal(data, 'b');
__iteration_exit:
tc_af_unix_close(&received_fds[0]);
tc_af_unix_close(&received_fds[1]);
tc_af_unix_close(&pipe_fds[0][0]);
tc_af_unix_close(&pipe_fds[0][1]);
tc_af_unix_close(&pipe_fds[1][0]);
tc_af_unix_close(&pipe_fds[1][1]);
tc_af_unix_closesocket(&sockets[0]);
tc_af_unix_closesocket(&sockets[1]);
}
}
static void tc_af_unix_rights_truncation(void)
{
char payload;
int message_flags = 0;
int pipe_fds[2][2] = { { -1, -1 }, { -1, -1 } };
int received_fds[2] = { -1, -1 };
int send_fds[2];
int sockets[2] = { -1, -1 };
size_t fd_count = 0;
uassert_int_equal(socketpair(AF_UNIX, SOCK_DGRAM, 0, sockets), 0);
uassert_int_equal(pipe(pipe_fds[0]), 0);
uassert_int_equal(pipe(pipe_fds[1]), 0);
if (sockets[0] < 0 || pipe_fds[0][0] < 0 || pipe_fds[1][0] < 0)
{
goto __exit;
}
send_fds[0] = pipe_fds[0][0];
send_fds[1] = pipe_fds[1][0];
uassert_int_equal(tc_af_unix_send_rights(sockets[0], send_fds, 2, 't'), 1);
uassert_int_equal(tc_af_unix_receive_rights(sockets[1], 0, 0, received_fds,
&fd_count, &message_flags,
&payload),
1);
uassert_int_equal(fd_count, 0);
uassert_true((message_flags & MSG_CTRUNC) != 0);
__exit:
tc_af_unix_close(&received_fds[0]);
tc_af_unix_close(&pipe_fds[0][0]);
tc_af_unix_close(&pipe_fds[0][1]);
tc_af_unix_close(&pipe_fds[1][0]);
tc_af_unix_close(&pipe_fds[1][1]);
tc_af_unix_closesocket(&sockets[0]);
tc_af_unix_closesocket(&sockets[1]);
}
static void tc_af_unix_rights_peek_and_invalid(void)
{
char payload;
int error;
int invalid_fd = -1;
int message_flags = 0;
int pipe_fds[2] = { -1, -1 };
int received_fds[2] = { -1, -1 };
int result;
int sockets[2] = { -1, -1 };
size_t fd_count = 0;
uassert_int_equal(socketpair(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0,
sockets),
0);
uassert_int_equal(pipe(pipe_fds), 0);
if (sockets[0] < 0 || pipe_fds[0] < 0)
{
goto __exit;
}
result = tc_af_unix_send_rights(sockets[0], &invalid_fd, 1, 'x');
error = rt_get_errno();
uassert_int_equal(result, -1);
uassert_int_equal(error, EBADF);
uassert_int_equal(tc_af_unix_send_rights(sockets[0], pipe_fds, 1, 'p'), 1);
fd_count = 0;
uassert_int_equal(tc_af_unix_receive_rights(
sockets[1], MSG_PEEK, CMSG_SPACE(sizeof(int)),
received_fds, &fd_count, &message_flags, &payload),
1);
uassert_int_equal(payload, 'p');
uassert_int_equal(fd_count, 0);
fd_count = 0;
message_flags = 0;
uassert_int_equal(tc_af_unix_receive_rights(
sockets[1], 0, CMSG_SPACE(sizeof(int)),
received_fds, &fd_count, &message_flags, &payload),
1);
uassert_int_equal(fd_count, 1);
__exit:
tc_af_unix_close(&received_fds[0]);
tc_af_unix_close(&pipe_fds[0]);
tc_af_unix_close(&pipe_fds[1]);
tc_af_unix_closesocket(&sockets[0]);
tc_af_unix_closesocket(&sockets[1]);
}
static void tc_af_unix_rights_reject_socket(void)
{
char payload;
int carrier[2] = { -1, -1 };
int error;
int message_flags = 0;
int passed[2] = { -1, -1 };
int received_fds[2] = { -1, -1 };
int result;
size_t fd_count = 0;
uassert_int_equal(socketpair(AF_UNIX, SOCK_STREAM, 0, carrier), 0);
uassert_int_equal(socketpair(AF_UNIX, SOCK_DGRAM, 0, passed), 0);
if (carrier[0] < 0 || passed[0] < 0)
{
goto __exit;
}
result = tc_af_unix_send_rights(carrier[0], &passed[1], 1, 's');
error = rt_get_errno();
uassert_int_equal(result, -1);
uassert_int_equal(error, EOPNOTSUPP);
result = tc_af_unix_receive_rights(carrier[1], MSG_DONTWAIT,
CMSG_SPACE(sizeof(int)), received_fds,
&fd_count, &message_flags, &payload);
error = rt_get_errno();
uassert_int_equal(result, -1);
uassert_true(error == EAGAIN || error == EWOULDBLOCK);
uassert_int_equal(fd_count, 0);
uassert_int_equal(send(passed[0], "q", 1, 0), 1);
uassert_int_equal(recv(passed[1], &payload, 1, 0), 1);
uassert_int_equal(payload, 'q');
__exit:
tc_af_unix_close(&received_fds[0]);
tc_af_unix_closesocket(&passed[0]);
tc_af_unix_closesocket(&passed[1]);
tc_af_unix_closesocket(&carrier[0]);
tc_af_unix_closesocket(&carrier[1]);
}
static void tc_af_unix_rights_testcase(void)
{
UTEST_UNIT_RUN(tc_af_unix_rights_transfer);
UTEST_UNIT_RUN(tc_af_unix_rights_truncation);
UTEST_UNIT_RUN(tc_af_unix_rights_peek_and_invalid);
UTEST_UNIT_RUN(tc_af_unix_rights_reject_socket);
}
UTEST_TC_EXPORT(tc_af_unix_rights_testcase, "components.dfs.v2.af_unix.rights",
RT_NULL, RT_NULL, 15);
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