File: seccomp.c

package info (click to toggle)
systemtap 4.8-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 39,000 kB
  • sloc: cpp: 78,785; ansic: 62,419; xml: 49,443; exp: 42,735; sh: 11,254; python: 3,062; perl: 2,252; tcl: 1,305; makefile: 1,072; lisp: 105; awk: 101; asm: 91; java: 56; sed: 16
file content (61 lines) | stat: -rw-r--r-- 1,516 bytes parent folder | download | duplicates (4)
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
/* COVERAGE: seccomp */

#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>

#ifdef __NR_seccomp

#include <linux/seccomp.h>
#include <linux/filter.h>
#include <linux/audit.h>
#include <linux/signal.h>
#include <sys/ptrace.h>

// Some versions of <linux/seccomp.h> don't define SECCOMP_SET_MODE_FILTER.
#ifndef SECCOMP_SET_MODE_FILTER
#define SECCOMP_SET_MODE_FILTER 1
#endif

struct sock_filter filter[] = {
    BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ALLOW),
};

struct sock_fprog prog = {
   .len = (unsigned short) (sizeof(filter) / sizeof(filter[0])),
   .filter = filter,
};

static inline int __seccomp(unsigned int operation, unsigned int flags, void *args)
{
    return syscall(__NR_seccomp, operation, flags, args);
}

int main()
{
    __seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog);
    //staptest// [[[[seccomp (SECCOMP_SET_MODE_FILTER, 0x0, XXXX)!!!!ni_syscall ()]]]] = NNNN

    // Limit testing

    __seccomp(-1, 0, NULL);
    //staptest// [[[[seccomp (0x[f]+, 0x0, 0x0)!!!!ni_syscall ()]]]] = -NNNN

    __seccomp(SECCOMP_SET_MODE_FILTER, -1, NULL);
    //staptest// [[[[seccomp (SECCOMP_SET_MODE_FILTER, 0x[f]+, 0x0)!!!!ni_syscall ()]]]] = -NNNN

    __seccomp(SECCOMP_SET_MODE_FILTER, 0, (void *)-1);
#ifdef __s390__
    //staptest// [[[[seccomp (SECCOMP_SET_MODE_FILTER, 0x0, 0x[7]?[f]+)!!!!ni_syscall ()]]]] = -NNNN
#else
    //staptest// [[[[seccomp (SECCOMP_SET_MODE_FILTER, 0x0, 0x[f]+)!!!!ni_syscall ()]]]] = -NNNN
#endif

    return 0;
}
#else
int main()
{
    return 0;
}
#endif