1*cf84ac9aSAndroid Build Coastguard Worker /*
2*cf84ac9aSAndroid Build Coastguard Worker * Force legacy printpath/umovestr using PR_SET_DUMPABLE.
3*cf84ac9aSAndroid Build Coastguard Worker *
4*cf84ac9aSAndroid Build Coastguard Worker * Copyright (c) 2017 Dmitry V. Levin <[email protected]>
5*cf84ac9aSAndroid Build Coastguard Worker * All rights reserved.
6*cf84ac9aSAndroid Build Coastguard Worker *
7*cf84ac9aSAndroid Build Coastguard Worker * Redistribution and use in source and binary forms, with or without
8*cf84ac9aSAndroid Build Coastguard Worker * modification, are permitted provided that the following conditions
9*cf84ac9aSAndroid Build Coastguard Worker * are met:
10*cf84ac9aSAndroid Build Coastguard Worker * 1. Redistributions of source code must retain the above copyright
11*cf84ac9aSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer.
12*cf84ac9aSAndroid Build Coastguard Worker * 2. Redistributions in binary form must reproduce the above copyright
13*cf84ac9aSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer in the
14*cf84ac9aSAndroid Build Coastguard Worker * documentation and/or other materials provided with the distribution.
15*cf84ac9aSAndroid Build Coastguard Worker * 3. The name of the author may not be used to endorse or promote products
16*cf84ac9aSAndroid Build Coastguard Worker * derived from this software without specific prior written permission.
17*cf84ac9aSAndroid Build Coastguard Worker *
18*cf84ac9aSAndroid Build Coastguard Worker * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19*cf84ac9aSAndroid Build Coastguard Worker * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20*cf84ac9aSAndroid Build Coastguard Worker * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21*cf84ac9aSAndroid Build Coastguard Worker * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22*cf84ac9aSAndroid Build Coastguard Worker * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23*cf84ac9aSAndroid Build Coastguard Worker * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24*cf84ac9aSAndroid Build Coastguard Worker * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25*cf84ac9aSAndroid Build Coastguard Worker * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26*cf84ac9aSAndroid Build Coastguard Worker * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27*cf84ac9aSAndroid Build Coastguard Worker * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*cf84ac9aSAndroid Build Coastguard Worker */
29*cf84ac9aSAndroid Build Coastguard Worker
30*cf84ac9aSAndroid Build Coastguard Worker #include "tests.h"
31*cf84ac9aSAndroid Build Coastguard Worker
32*cf84ac9aSAndroid Build Coastguard Worker #ifdef HAVE_PRCTL
33*cf84ac9aSAndroid Build Coastguard Worker # include <sys/prctl.h>
34*cf84ac9aSAndroid Build Coastguard Worker #endif
35*cf84ac9aSAndroid Build Coastguard Worker
36*cf84ac9aSAndroid Build Coastguard Worker #if defined HAVE_PRCTL && defined PR_SET_DUMPABLE
37*cf84ac9aSAndroid Build Coastguard Worker
38*cf84ac9aSAndroid Build Coastguard Worker # include <stdio.h>
39*cf84ac9aSAndroid Build Coastguard Worker # include <unistd.h>
40*cf84ac9aSAndroid Build Coastguard Worker
41*cf84ac9aSAndroid Build Coastguard Worker # include "test_ucopy.h"
42*cf84ac9aSAndroid Build Coastguard Worker
43*cf84ac9aSAndroid Build Coastguard Worker int
main(void)44*cf84ac9aSAndroid Build Coastguard Worker main(void)
45*cf84ac9aSAndroid Build Coastguard Worker {
46*cf84ac9aSAndroid Build Coastguard Worker if (!test_process_vm_readv())
47*cf84ac9aSAndroid Build Coastguard Worker perror_msg_and_skip("process_vm_readv");
48*cf84ac9aSAndroid Build Coastguard Worker
49*cf84ac9aSAndroid Build Coastguard Worker /*
50*cf84ac9aSAndroid Build Coastguard Worker * Clearing dumpable flag disallows process_vm_readv.
51*cf84ac9aSAndroid Build Coastguard Worker * If the kernel does not contain commit
52*cf84ac9aSAndroid Build Coastguard Worker * 84d77d3f06e7e8dea057d10e8ec77ad71f721be3, then
53*cf84ac9aSAndroid Build Coastguard Worker * PTRACE_PEEKDATA remains allowed.
54*cf84ac9aSAndroid Build Coastguard Worker */
55*cf84ac9aSAndroid Build Coastguard Worker if (prctl(PR_SET_DUMPABLE, 0))
56*cf84ac9aSAndroid Build Coastguard Worker perror_msg_and_skip("PR_SET_DUMPABLE 0");
57*cf84ac9aSAndroid Build Coastguard Worker
58*cf84ac9aSAndroid Build Coastguard Worker if (!test_ptrace_peekdata())
59*cf84ac9aSAndroid Build Coastguard Worker perror_msg_and_skip("PTRACE_PEEKDATA");
60*cf84ac9aSAndroid Build Coastguard Worker
61*cf84ac9aSAndroid Build Coastguard Worker test_printstrn(DEFAULT_STRLEN);
62*cf84ac9aSAndroid Build Coastguard Worker
63*cf84ac9aSAndroid Build Coastguard Worker puts("+++ exited with 0 +++");
64*cf84ac9aSAndroid Build Coastguard Worker return 0;
65*cf84ac9aSAndroid Build Coastguard Worker }
66*cf84ac9aSAndroid Build Coastguard Worker
67*cf84ac9aSAndroid Build Coastguard Worker #else
68*cf84ac9aSAndroid Build Coastguard Worker
69*cf84ac9aSAndroid Build Coastguard Worker SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_SET_DUMPABLE")
70*cf84ac9aSAndroid Build Coastguard Worker
71*cf84ac9aSAndroid Build Coastguard Worker #endif
72