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
| #include <unistd.h>
| #include <sys/types.h>
| #include <fcntl.h>
| #include <stdlib.h>
| #include <stdio.h>
| #include <errno.h>
| #include <string.h>
| #include "selinux_internal.h"
| #include "policy.h"
| #include <limits.h>
|
| #define SELINUX_INITCON_DIR "/initial_contexts/"
|
| int security_get_initial_context_raw(const char * name, char ** con)
| {
| char path[PATH_MAX];
| char *buf;
| size_t size;
| int fd, ret;
|
| if (!selinux_mnt) {
| errno = ENOENT;
| return -1;
| }
|
| snprintf(path, sizeof path, "%s%s%s",
| selinux_mnt, SELINUX_INITCON_DIR, name);
| fd = open(path, O_RDONLY | O_CLOEXEC);
| if (fd < 0)
| return -1;
|
| size = selinux_page_size;
| buf = malloc(size);
| if (!buf) {
| ret = -1;
| goto out;
| }
| memset(buf, 0, size);
| ret = read(fd, buf, size - 1);
| if (ret < 0)
| goto out2;
|
| *con = strdup(buf);
| if (!(*con)) {
| ret = -1;
| goto out2;
| }
| ret = 0;
| out2:
| free(buf);
| out:
| close(fd);
| return ret;
| }
|
| hidden_def(security_get_initial_context_raw)
|
| int security_get_initial_context(const char * name, char ** con)
| {
| int ret;
| char * rcon;
|
| ret = security_get_initial_context_raw(name, &rcon);
| if (!ret) {
| ret = selinux_raw_to_trans_context(rcon, con);
| freecon(rcon);
| }
|
| return ret;
| }
|
| hidden_def(security_get_initial_context)
|
|