1 /* 2 * Copyright (c) 2016 Darren Tucker. All rights reserved. 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "includes.h" 18 19 #include <sys/types.h> 20 #if defined(HAVE_SYS_PRCTL_H) 21 #include <sys/prctl.h> /* For prctl() and PR_SET_DUMPABLE */ 22 #endif 23 #ifdef HAVE_PRIV_H 24 #include <priv.h> /* For setpflags() and __PROC_PROTECT */ 25 #endif 26 #include <stdarg.h> 27 28 #include "log.h" 29 30 void 31 platform_disable_tracing(int strict) 32 { 33 #if defined(HAVE_PRCTL) && defined(PR_SET_DUMPABLE) 34 /* Disable ptrace on Linux without sgid bit */ 35 if (prctl(PR_SET_DUMPABLE, 0) != 0 && strict) 36 fatal("unable to make the process undumpable"); 37 #endif 38 #if defined(HAVE_SETPFLAGS) && defined(__PROC_PROTECT) 39 /* On Solaris, we should make this process untraceable */ 40 if (setpflags(__PROC_PROTECT, 1) != 0 && strict) 41 fatal("unable to make the process untraceable"); 42 #endif 43 } 44