1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* Copyright (C) 2014-2021 Firejail Authors
*
* This file is part of firejail project
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "jailcheck.h"
#define MAXBUF 4096
void seccomp_test(pid_t pid) {
char *file;
if (asprintf(&file, "/proc/%d/status", pid) == -1)
errExit("asprintf");
FILE *fp = fopen(file, "r");
if (!fp) {
printf(" Error: cannot open %s\n", file);
free(file);
return;
}
char buf[MAXBUF];
while (fgets(buf, MAXBUF, fp)) {
if (strncmp(buf, "Seccomp:", 8) == 0) {
int val = -1;
int rv = sscanf(buf + 8, "\t%d", &val);
if (rv != 1 || val == 0)
printf(" Warning: seccomp not enabled\n");
break;
}
}
fclose(fp);
free(file);
}
|
