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/*
* Check decoding of sockname family syscalls.
*
* Copyright (c) 2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2016-2022 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "secontext.h"
#ifndef TEST_SYSCALL_NAME
# error TEST_SYSCALL_NAME must be defined
#endif
#ifndef TEST_SYSCALL_STR
# define TEST_SYSCALL_STR STRINGIFY_VAL(TEST_SYSCALL_NAME)
#endif
#define TEST_SOCKET TEST_SYSCALL_STR ".socket"
#ifdef TEST_SYSCALL_PREPARE
# define PREPARE_TEST_SYSCALL_INVOCATION do { TEST_SYSCALL_PREPARE; } while (0)
#else
# define PREPARE_TEST_SYSCALL_INVOCATION do {} while (0)
#endif
#ifndef PREFIX_S_ARGS
# define PREFIX_S_ARGS
#endif
#ifndef PREFIX_F_ARGS
# define PREFIX_F_ARGS
#endif
#ifndef PREFIX_S_STR
# define PREFIX_S_STR ""
#endif
#ifndef PREFIX_F_STR
# define PREFIX_F_STR ""
#endif
#ifndef SUFFIX_ARGS
# define SUFFIX_ARGS
#endif
#ifndef SUFFIX_STR
# define SUFFIX_STR ""
#endif
static void
test_sockname_syscall(const int fd)
{
TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, plen);
*plen = sizeof(struct sockaddr_un);
struct sockaddr_un *addr = tail_alloc(*plen);
char *my_secontext = SECONTEXT_PID_MY();
char *fd_secontext = SECONTEXT_FD(fd);
PREPARE_TEST_SYSCALL_INVOCATION;
int rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
plen SUFFIX_ARGS);
if (rc < 0)
perror_msg_and_skip(TEST_SYSCALL_STR);
printf("%s%s(%d%s%s, {sa_family=AF_UNIX, sun_path=\"%s\"%s}"
", [%d => %d]%s) = %d\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_S_STR,
addr->sun_path, SECONTEXT_FILE(addr->sun_path),
(int) sizeof(struct sockaddr_un), (int) *plen, SUFFIX_STR, rc);
memset(addr, 0, sizeof(*addr));
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
plen SUFFIX_ARGS);
if (rc < 0)
perror_msg_and_skip(TEST_SYSCALL_STR);
printf("%s%s(%d%s%s, {sa_family=AF_UNIX, sun_path=\"%s\"%s}"
", [%d]%s) = %d\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_S_STR,
addr->sun_path, SECONTEXT_FILE(addr->sun_path),
(int) *plen, SUFFIX_STR, rc);
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr, 0 SUFFIX_ARGS);
printf("%s%s(%d%s%s, %p, NULL%s) = %s\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_F_STR,
addr, SUFFIX_STR, sprintrc(rc));
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, 0, 0 SUFFIX_ARGS);
printf("%s%s(%d%s%s, NULL, NULL%s) = %s\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext,
rc == -1 ? PREFIX_F_STR : PREFIX_S_STR,
SUFFIX_STR, sprintrc(rc));
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr,
plen + 1 SUFFIX_ARGS);
printf("%s%s(%d%s%s, %p, %p%s) = %s\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_F_STR, addr,
plen + 1, SUFFIX_STR, sprintrc(rc));
const size_t offsetof_sun_path = offsetof(struct sockaddr_un, sun_path);
*plen = offsetof_sun_path;
memset(addr->sun_path, 'A', sizeof(addr->sun_path));
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
plen SUFFIX_ARGS);
if (rc < 0)
perror_msg_and_skip(TEST_SYSCALL_STR);
printf("%s%s(%d%s%s, {sa_family=AF_UNIX}, [%d => %d]%s) = %d\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_S_STR,
(int) offsetof_sun_path, (int) *plen, SUFFIX_STR, rc);
++addr;
*plen = sizeof(struct sockaddr);
addr = (void *) addr - *plen;
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
plen SUFFIX_ARGS);
if (rc < 0)
perror_msg_and_skip(TEST_SYSCALL_STR);
printf("%s%s(%d%s%s, {sa_family=AF_UNIX, sun_path=\"%.*s\"%s}"
", [%d => %d]%s) = %d\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_S_STR,
(int) (sizeof(struct sockaddr) - offsetof_sun_path),
addr->sun_path, SECONTEXT_FILE(addr->sun_path),
(int) sizeof(struct sockaddr), (int) *plen, SUFFIX_STR, rc);
PREPARE_TEST_SYSCALL_INVOCATION;
rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr,
plen SUFFIX_ARGS);
printf("%s%s(%d%s%s, %p, [%d]%s) = %s\n",
my_secontext,
TEST_SYSCALL_STR, fd, fd_secontext, PREFIX_F_STR, addr,
*plen, SUFFIX_STR, sprintrc(rc));
}
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