void tomoyo_load_policy(const char *filename) { static bool done; char *argv[2]; char *envp[3]; if (tomoyo_policy_loaded || done) return; if (!tomoyo_trigger) tomoyo_trigger = CONFIG_SECURITY_TOMOYO_ACTIVATION_TRIGGER; if (strcmp(filename, tomoyo_trigger)) return; if (!tomoyo_policy_loader_exists()) return; done = true; printk(KERN_INFO "Calling %s to load policy. Please wait.\n", tomoyo_loader); argv[0] = (char *) tomoyo_loader; argv[1] = NULL; envp[0] = "HOME=/"; envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; envp[2] = NULL; call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); tomoyo_check_profile(); }
/** * tomoyo_load_policy - Run external policy loader to load policy. * * @filename: The program about to start. * * This function checks whether @filename is /sbin/init , and if so * invoke /sbin/tomoyo-init and wait for the termination of /sbin/tomoyo-init * and then continues invocation of /sbin/init. * /sbin/tomoyo-init reads policy files in /etc/tomoyo/ directory and * writes to /sys/kernel/security/tomoyo/ interfaces. * * Returns nothing. */ void tomoyo_load_policy(const char *filename) { char *argv[2]; char *envp[3]; if (tomoyo_policy_loaded) return; /* * Check filename is /sbin/init or /sbin/tomoyo-start. * /sbin/tomoyo-start is a dummy filename in case where /sbin/init can't * be passed. * You can create /sbin/tomoyo-start by * "ln -s /bin/true /sbin/tomoyo-start". */ if (strcmp(filename, "/sbin/init") && strcmp(filename, "/sbin/tomoyo-start")) return; if (!tomoyo_policy_loader_exists()) return; printk(KERN_INFO "Calling %s to load policy. Please wait.\n", tomoyo_loader); argv[0] = (char *) tomoyo_loader; argv[1] = NULL; envp[0] = "HOME=/"; envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; envp[2] = NULL; call_usermodehelper(argv[0], argv, envp, 1); tomoyo_check_profile(); }