1  /*
       2   * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
       3   * Copyright (c) 2017-2021 The strace developers.
       4   * All rights reserved.
       5   *
       6   * SPDX-License-Identifier: GPL-2.0-or-later
       7   */
       8  
       9  #include "tests.h"
      10  #include <stdio.h>
      11  #include <string.h>
      12  #include <stdint.h>
      13  #include <unistd.h>
      14  #include <sys/socket.h>
      15  #include "netlink.h"
      16  #include <linux/xfrm.h>
      17  
      18  static void
      19  test_nlmsg_type(const int fd)
      20  {
      21  	long rc;
      22  	struct nlmsghdr nlh = {
      23  		.nlmsg_len = sizeof(nlh),
      24  		.nlmsg_type = XFRM_MSG_NEWSA,
      25  		.nlmsg_flags = NLM_F_REQUEST,
      26  	};
      27  
      28  	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
      29  	printf("sendto(%d, {nlmsg_len=%u, nlmsg_type=XFRM_MSG_NEWSA"
      30  	       ", nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=0, nlmsg_pid=0}"
      31  	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
      32  	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
      33  }
      34  
      35  static void
      36  test_nlmsg_flags(const int fd)
      37  {
      38  	long rc;
      39  	struct nlmsghdr nlh = {
      40  		.nlmsg_len = sizeof(nlh),
      41  	};
      42  
      43  	nlh.nlmsg_type = XFRM_MSG_GETSA;
      44  	nlh.nlmsg_flags = NLM_F_DUMP;
      45  	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
      46  	printf("sendto(%d, {nlmsg_len=%u, nlmsg_type=XFRM_MSG_GETSA"
      47  	       ", nlmsg_flags=NLM_F_DUMP, nlmsg_seq=0, nlmsg_pid=0}"
      48  	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
      49  	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
      50  
      51  	nlh.nlmsg_type = XFRM_MSG_NEWSA;
      52  	nlh.nlmsg_flags = NLM_F_REPLACE;
      53  	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
      54  	printf("sendto(%d, {nlmsg_len=%u, nlmsg_type=XFRM_MSG_NEWSA"
      55  	       ", nlmsg_flags=NLM_F_REPLACE, nlmsg_seq=0, nlmsg_pid=0}"
      56  	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
      57  	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
      58  
      59  	nlh.nlmsg_type = XFRM_MSG_DELSA;
      60  	nlh.nlmsg_flags = NLM_F_ECHO | NLM_F_NONREC;
      61  	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
      62  	printf("sendto(%d, {nlmsg_len=%u, nlmsg_type=XFRM_MSG_DELSA"
      63  	       ", nlmsg_flags=NLM_F_ECHO|NLM_F_NONREC, nlmsg_seq=0"
      64  	       ", nlmsg_pid=0}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
      65  	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
      66  
      67  	nlh.nlmsg_type = XFRM_MSG_ALLOCSPI;
      68  	nlh.nlmsg_flags = NLM_F_ECHO | NLM_F_REPLACE;
      69  	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
      70  	printf("sendto(%d, {nlmsg_len=%u, nlmsg_type=XFRM_MSG_ALLOCSPI"
      71  	       ", nlmsg_flags=NLM_F_ECHO|%#x, nlmsg_seq=0, nlmsg_pid=0}"
      72  	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
      73  	       fd, nlh.nlmsg_len, NLM_F_REPLACE,
      74  	       (unsigned) sizeof(nlh), sprintrc(rc));
      75  }
      76  
      77  int main(void)
      78  {
      79  	skip_if_unavailable("/proc/self/fd/");
      80  
      81  	int fd = create_nl_socket(NETLINK_XFRM);
      82  
      83  	test_nlmsg_type(fd);
      84  	test_nlmsg_flags(fd);
      85  
      86  	printf("+++ exited with 0 +++\n");
      87  
      88  	return 0;
      89  }