1  /*
       2   * Check decoding of prctl PR_CAPBSET_READ/PR_CAPBSET_DROP operations.
       3   *
       4   * Copyright (c) 2021 The strace developers.
       5   * All rights reserved.
       6   *
       7   * SPDX-License-Identifier: GPL-2.0-or-later
       8   */
       9  
      10  #include "tests.h"
      11  #include "scno.h"
      12  #include <stdio.h>
      13  #include <unistd.h>
      14  #include <linux/prctl.h>
      15  #include <linux/capability.h>
      16  
      17  int
      18  main(void)
      19  {
      20  	long rc;
      21  
      22  	prctl_marker();
      23  
      24  	rc = syscall(__NR_prctl, PR_CAPBSET_READ, CAP_AUDIT_CONTROL);
      25  	printf("prctl(PR_CAPBSET_READ, CAP_AUDIT_CONTROL) = %s\n",
      26  		   sprintrc(rc));
      27  
      28  	rc = syscall(__NR_prctl, PR_CAPBSET_READ, CAP_NET_RAW);
      29  	printf("prctl(PR_CAPBSET_READ, CAP_NET_RAW) = %s\n",
      30  		   sprintrc(rc));
      31  
      32  	rc = syscall(__NR_prctl, PR_CAPBSET_READ, 0xff);
      33  	printf("prctl(PR_CAPBSET_READ, 0xff /* CAP_??? */) = %s\n",
      34  		   sprintrc(rc));
      35  
      36  	rc = syscall(__NR_prctl, PR_CAPBSET_DROP, CAP_AUDIT_CONTROL);
      37  	printf("prctl(PR_CAPBSET_DROP, CAP_AUDIT_CONTROL) = %s\n",
      38  		   sprintrc(rc));
      39  
      40  	rc = syscall(__NR_prctl, PR_CAPBSET_DROP, CAP_NET_RAW);
      41  	printf("prctl(PR_CAPBSET_DROP, CAP_NET_RAW) = %s\n",
      42  		   sprintrc(rc));
      43  
      44  	rc = syscall(__NR_prctl, PR_CAPBSET_DROP, 0xff);
      45  	printf("prctl(PR_CAPBSET_DROP, 0xff /* CAP_??? */) = %s\n",
      46  		   sprintrc(rc));
      47  
      48  	puts("+++ exited with 0 +++");
      49  	return 0;
      50  }