granicus.if.org Git - strace/blob - netlink_selinux.c

   1 /*
   2  * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
   3  * Copyright (c) 2017-2018 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: LGPL-2.1-or-later
   7  */
   8
   9 #include "defs.h"
  10 #include "netlink.h"
  11 #include "print_fields.h"
  12
  13 #include <linux/selinux_netlink.h>
  14
  15 bool
  16 decode_netlink_selinux(struct tcb *const tcp,
  17                        const struct nlmsghdr *const nlmsghdr,
  18                        const kernel_ulong_t addr,
  19                        const unsigned int len)
  20 {
  21         switch (nlmsghdr->nlmsg_type) {
  22         case SELNL_MSG_SETENFORCE: {
  23                 struct selnl_msg_setenforce msg;
  24
  25                 if (len < sizeof(msg))
  26                         printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
  27                 else if (!umove_or_printaddr(tcp, addr, &msg)) {
  28                         PRINT_FIELD_D("{", msg, val);
  29                         tprints("}");
  30                 }
  31                 break;
  32         }
  33         case SELNL_MSG_POLICYLOAD: {
  34                 struct selnl_msg_policyload msg;
  35
  36                 if (len < sizeof(msg))
  37                         printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
  38                 else if (!umove_or_printaddr(tcp, addr, &msg)) {
  39                         PRINT_FIELD_U("{", msg, seqno);
  40                         tprints("}");
  41                 }
  42                 break;
  43         }
  44         default:
  45                 return false;
  46         }
  47
  48         return true;
  49 }