1 /* 2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao (at) 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 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 switch (nlmsghdr->nlmsg_type) { 42 case SELNL_MSG_SETENFORCE: { 43 struct selnl_msg_setenforce msg; 44 45 if (len < sizeof(msg)) 46 printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX); 47 else if (!umove_or_printaddr(tcp, addr, &msg)) { 48 PRINT_FIELD_D("{", msg, val); 49 tprints("}"); 50 } 51 break; 52 } 53 case SELNL_MSG_POLICYLOAD: { 54 struct selnl_msg_policyload msg; 55 56 if (len < sizeof(msg)) 57 printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX); 58 else if (!umove_or_printaddr(tcp, addr, &msg)) { 59 PRINT_FIELD_U("{", msg, seqno); 60 tprints("}"); 61 } 62 break; 63 } 64 default: 65 return false; 66 } 67 68 return true; 69 } 70
