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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* Copyright (C) 2014-2023 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 "firejail.h"
#include "../include/gcov_wrapper.h"
#include <sys/time.h>
#include <sys/resource.h>
void set_rlimits(void) {
EUID_ASSERT();
// resource limits
struct rlimit rl;
if (arg_rlimit_cpu) {
if (getrlimit(RLIMIT_CPU, &rl) == -1)
errExit("getrlimit");
if (cfg.rlimit_cpu > rl.rlim_max && getuid() != 0)
cfg.rlimit_cpu = rl.rlim_max;
// set the new limit
rl.rlim_cur = (rlim_t) cfg.rlimit_cpu;
rl.rlim_max = (rlim_t) cfg.rlimit_cpu;
__gcov_dump();
if (setrlimit(RLIMIT_CPU, &rl) == -1)
errExit("setrlimit");
if (arg_debug)
printf("Config rlimit: max cpu time %llu\n", cfg.rlimit_cpu);
}
if (arg_rlimit_nofile) {
if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
errExit("getrlimit");
if (cfg.rlimit_nofile > rl.rlim_max && getuid() != 0)
cfg.rlimit_nofile = rl.rlim_max;
// set the new limit
rl.rlim_cur = (rlim_t) cfg.rlimit_nofile;
rl.rlim_max = (rlim_t) cfg.rlimit_nofile;
// gcov-instrumented programs might crash at this point
__gcov_dump();
if (setrlimit(RLIMIT_NOFILE, &rl) == -1)
errExit("setrlimit");
if (arg_debug)
printf("Config rlimit: number of open file descriptors %llu\n", cfg.rlimit_nofile);
}
if (arg_rlimit_nproc) {
if (getrlimit(RLIMIT_NPROC, &rl) == -1)
errExit("getrlimit");
if (cfg.rlimit_nproc > rl.rlim_max && getuid() != 0)
cfg.rlimit_nproc = rl.rlim_max;
// set the new limit
rl.rlim_cur = (rlim_t) cfg.rlimit_nproc;
rl.rlim_max = (rlim_t) cfg.rlimit_nproc;
__gcov_dump();
if (setrlimit(RLIMIT_NPROC, &rl) == -1)
errExit("setrlimit");
if (arg_debug)
printf("Config rlimit: number of processes %llu\n", cfg.rlimit_nproc);
}
if (arg_rlimit_fsize) {
if (getrlimit(RLIMIT_FSIZE, &rl) == -1)
errExit("getrlimit");
if (cfg.rlimit_fsize > rl.rlim_max && getuid() != 0)
cfg.rlimit_fsize = rl.rlim_max;
// set the new limit
rl.rlim_cur = (rlim_t) cfg.rlimit_fsize;
rl.rlim_max = (rlim_t) cfg.rlimit_fsize;
__gcov_dump();
if (setrlimit(RLIMIT_FSIZE, &rl) == -1)
errExit("setrlimit");
if (arg_debug)
printf("Config rlimit: maximum file size %llu\n", cfg.rlimit_fsize);
}
if (arg_rlimit_sigpending) {
if (getrlimit(RLIMIT_SIGPENDING, &rl) == -1)
errExit("getrlimit");
if (cfg.rlimit_sigpending > rl.rlim_max && getuid() != 0)
cfg.rlimit_sigpending = rl.rlim_max;
// set the new limit
rl.rlim_cur = (rlim_t) cfg.rlimit_sigpending;
rl.rlim_max = (rlim_t) cfg.rlimit_sigpending;
__gcov_dump();
if (setrlimit(RLIMIT_SIGPENDING, &rl) == -1)
errExit("setrlimit");
if (arg_debug)
printf("Config rlimit: maximum number of signals pending %llu\n", cfg.rlimit_sigpending);
}
if (arg_rlimit_as) {
if (getrlimit(RLIMIT_AS, &rl) == -1)
errExit("getrlimit");
if (cfg.rlimit_as > rl.rlim_max && getuid() != 0)
cfg.rlimit_as = rl.rlim_max;
// set the new limit
rl.rlim_cur = (rlim_t) cfg.rlimit_as;
rl.rlim_max = (rlim_t) cfg.rlimit_as;
__gcov_dump();
if (setrlimit(RLIMIT_AS, &rl) == -1)
errExit("setrlimit");
if (arg_debug)
printf("Config rlimit: maximum virtual memory %llu\n", cfg.rlimit_as);
}
}
|