LCOV - code coverage report
Current view: top level - strace - netlink_selinux.c (source / functions) Hit Total Coverage
Test: strace-4.18.0.129.97bbb Code Coverage Lines: 12 12 100.0 %
Date: 2017-07-31 03:46:08 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 11 11 100.0 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
       3                 :            :  * Copyright (c) 2017 The strace developers.
       4                 :            :  * All rights reserved.
       5                 :            :  *
       6                 :            :  * Redistribution and use in source and binary forms, with or without
       7                 :            :  * modification, are permitted provided that the following conditions
       8                 :            :  * are met:
       9                 :            :  * 1. Redistributions of source code must retain the above copyright
      10                 :            :  *    notice, this list of conditions and the following disclaimer.
      11                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      12                 :            :  *    notice, this list of conditions and the following disclaimer in the
      13                 :            :  *    documentation and/or other materials provided with the distribution.
      14                 :            :  * 3. The name of the author may not be used to endorse or promote products
      15                 :            :  *    derived from this software without specific prior written permission.
      16                 :            :  *
      17                 :            :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      18                 :            :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      19                 :            :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      20                 :            :  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      21                 :            :  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      22                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      23                 :            :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      24                 :            :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      25                 :            :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      26                 :            :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      27                 :            :  */
      28                 :            : 
      29                 :            : #include "defs.h"
      30                 :            : #include "netlink.h"
      31                 :            : #include "print_fields.h"
      32                 :            : 
      33                 :            : #include <linux/selinux_netlink.h>
      34                 :            : 
      35                 :            : bool
      36                 :         14 : decode_netlink_selinux(struct tcb *const tcp,
      37                 :            :                        const struct nlmsghdr *const nlmsghdr,
      38                 :            :                        const kernel_ulong_t addr,
      39                 :            :                        const unsigned int len)
      40                 :            : {
      41      [ +  +  + ]:         14 :         switch (nlmsghdr->nlmsg_type) {
      42                 :            :         case SELNL_MSG_SETENFORCE: {
      43                 :            :                 struct selnl_msg_setenforce msg;
      44                 :            : 
      45         [ +  + ]:          6 :                 if (len < sizeof(msg))
      46                 :          2 :                         printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
      47         [ +  + ]:          4 :                 else if (!umove_or_printaddr(tcp, addr, &msg)) {
      48                 :          2 :                         PRINT_FIELD_D("{", msg, val);
      49                 :          6 :                         tprints("}");
      50                 :            :                 }
      51                 :            :                 break;
      52                 :            :         }
      53                 :            :         case SELNL_MSG_POLICYLOAD: {
      54                 :            :                 struct selnl_msg_policyload msg;
      55                 :            : 
      56         [ +  + ]:          6 :                 if (len < sizeof(msg))
      57                 :          2 :                         printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
      58         [ +  + ]:          4 :                 else if (!umove_or_printaddr(tcp, addr, &msg)) {
      59                 :          2 :                         PRINT_FIELD_U("{", msg, seqno);
      60                 :          6 :                         tprints("}");
      61                 :            :                 }
      62                 :            :                 break;
      63                 :            :         }
      64                 :            :         default:
      65                 :            :                 return false;
      66                 :            :         }
      67                 :            : 
      68                 :            :         return true;
      69                 :            : }

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