1 /* load_policy.c - Load a policy file
2 *
3 * Copyright 2015 The Android Open Source Project
4
5 USE_LOAD_POLICY(NEWTOY(load_policy, "<1>1", TOYFLAG_USR|TOYFLAG_SBIN))
6
7 config LOAD_POLICY
8 bool "load_policy"
9 depends on TOYBOX_SELINUX
10 default y
11 help
12 usage: load_policy FILE
13
14 Load the specified policy file.
15 */
16
17 #define FOR_load_policy
18 #include "toys.h"
19
load_policy_main(void)20 void load_policy_main(void)
21 {
22 char *path = *toys.optargs;
23 int fd = xopen(path, O_RDONLY);
24 off_t policy_len = fdlength(fd);
25 char *policy_data = mmap(0, policy_len, PROT_READ, MAP_PRIVATE, fd, 0);
26
27 close(fd);
28 if (!policy_data || security_load_policy(policy_data, policy_len) < 0)
29 perror_exit("Couldn't %s %s", policy_data ? "load" : "read", path);
30
31 munmap(policy_data, policy_len);
32 }
33