| #include <unistd.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include "selinux_internal.h" |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <limits.h> |
| #include <stdio.h> |
| #include "policy.h" |
| |
| int is_selinux_enabled(void) |
| { |
| /* init_selinuxmnt() gets called before this function. We |
| * will assume that if a selinux file system is mounted, then |
| * selinux is enabled. */ |
| return (selinux_mnt ? 1 : 0); |
| } |
| |
| hidden_def(is_selinux_enabled) |
| |
| /* |
| * Function: is_selinux_mls_enabled() |
| * Return: 1 on success |
| * 0 on failure |
| */ |
| int is_selinux_mls_enabled(void) |
| { |
| char buf[20], path[PATH_MAX]; |
| int fd, ret, enabled = 0; |
| |
| if (!selinux_mnt) |
| return enabled; |
| |
| snprintf(path, sizeof path, "%s/mls", selinux_mnt); |
| fd = open(path, O_RDONLY); |
| if (fd < 0) |
| return enabled; |
| |
| memset(buf, 0, sizeof buf); |
| |
| do { |
| ret = read(fd, buf, sizeof buf - 1); |
| } while (ret < 0 && errno == EINTR); |
| close(fd); |
| if (ret < 0) |
| return enabled; |
| |
| if (!strcmp(buf, "1")) |
| enabled = 1; |
| |
| return enabled; |
| } |
| |
| hidden_def(is_selinux_mls_enabled) |