strace/tests/netlink_selinux.c
JingPiao Chen 8ff8c5422d tests: check decoding of NETLINK_SELINUX protocol
* test_netlink.h (TEST_NETLINK_OBJECT): New macro.
* tests/netlink_selinux.c: Include "test_netlink.h"
instead of "netlink.h".
(test_selnl_msg_unspec, test_selnl_msg_setenforce,
test_selnl_msg_policyload): New functions.
(main): Use them.
2017-07-16 18:26:10 +00:00

108 lines
3.2 KiB
C

/*
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include "test_netlink.h"
#include <linux/selinux_netlink.h>
static void
test_nlmsg_type(const int fd)
{
long rc;
struct nlmsghdr nlh = {
.nlmsg_len = sizeof(nlh),
.nlmsg_type = SELNL_MSG_SETENFORCE,
.nlmsg_flags = NLM_F_REQUEST,
};
rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
printf("sendto(%d, {len=%u, type=SELNL_MSG_SETENFORCE"
", flags=NLM_F_REQUEST, seq=0, pid=0}"
", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
}
static void
test_selnl_msg_unspec(const int fd)
{
void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
TEST_NETLINK_(fd, nlh0,
0xffff, "0xffff /* SELNL_MSG_??? */",
NLM_F_REQUEST, "NLM_F_REQUEST",
4, "1234", 4,
printf("\"\\x31\\x32\\x33\\x34\""));
}
static void
test_selnl_msg_setenforce(const int fd)
{
void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
static const struct selnl_msg_setenforce msg = {
.val = 0xfbdcdfab
};
TEST_NETLINK_OBJECT(fd, nlh0,
SELNL_MSG_SETENFORCE, NLM_F_REQUEST, msg,
PRINT_FIELD_D("{", msg, val);
printf("}"));
}
static void
test_selnl_msg_policyload(const int fd)
{
void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
static const struct selnl_msg_policyload msg = {
.seqno = 0xabdcfabc
};
TEST_NETLINK_OBJECT(fd, nlh0,
SELNL_MSG_POLICYLOAD, NLM_F_REQUEST, msg,
PRINT_FIELD_U("{", msg, seqno);
printf("}"));
}
int main(void)
{
skip_if_unavailable("/proc/self/fd/");
int fd = create_nl_socket(NETLINK_SELINUX);
test_nlmsg_type(fd);
test_selnl_msg_unspec(fd);
test_selnl_msg_setenforce(fd);
test_selnl_msg_policyload(fd);
printf("+++ exited with 0 +++\n");
return 0;
}