Esempio n. 1
0
static int
test_strtobool(int *ntests)
{
    struct strtobool_data *d;
    int errors = 0;
    int value;

    for (d = strtobool_data; d->bool_str != NULL; d++) {
	(*ntests)++;
	value = sudo_strtobool(d->bool_str);
	if (value != d->value) {
	    sudo_warnx_nodebug("FAIL: %s != %d", d->bool_str, d->value);
	    errors++;
	}
    }

    return errors;
}
Esempio n. 2
0
/*
 * Deserialize args, settings and user_info arrays.
 * Fills in struct sudo_user and other common sudoers state.
 */
int
sudoers_policy_deserialize_info(void *v, char **runas_user, char **runas_group)
{
    struct sudoers_policy_open_info *info = v;
    char * const *cur;
    const char *p, *errstr, *groups = NULL;
    const char *remhost = NULL;
    int flags = 0;
    debug_decl(sudoers_policy_deserialize_info, SUDOERS_DEBUG_PLUGIN)

#define MATCHES(s, v) (strncmp(s, v, sizeof(v) - 1) == 0)

    /* Parse sudo.conf plugin args. */
    if (info->plugin_args != NULL) {
	for (cur = info->plugin_args; *cur != NULL; cur++) {
	    if (MATCHES(*cur, "sudoers_file=")) {
		sudoers_file = *cur + sizeof("sudoers_file=") - 1;
		continue;
	    }
	    if (MATCHES(*cur, "sudoers_uid=")) {
		p = *cur + sizeof("sudoers_uid=") - 1;
		sudoers_uid = (uid_t) sudo_strtoid(p, NULL, NULL, &errstr);
		if (errstr != NULL) {
		    sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		    goto bad;
		}
		continue;
	    }
	    if (MATCHES(*cur, "sudoers_gid=")) {
		p = *cur + sizeof("sudoers_gid=") - 1;
		sudoers_gid = (gid_t) sudo_strtoid(p, NULL, NULL, &errstr);
		if (errstr != NULL) {
		    sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		    goto bad;
		}
		continue;
	    }
	    if (MATCHES(*cur, "sudoers_mode=")) {
		p = *cur + sizeof("sudoers_mode=") - 1;
		sudoers_mode = sudo_strtomode(p, &errstr);
		if (errstr != NULL) {
		    sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		    goto bad;
		}
		continue;
	    }
	    if (MATCHES(*cur, "ldap_conf=")) {
		path_ldap_conf = *cur + sizeof("ldap_conf=") - 1;
		continue;
	    }
	    if (MATCHES(*cur, "ldap_secret=")) {
		path_ldap_secret = *cur + sizeof("ldap_secret=") - 1;
		continue;
	    }
	}
    }

    /* Parse command line settings. */
    user_closefrom = -1;
    for (cur = info->settings; *cur != NULL; cur++) {
	if (MATCHES(*cur, "closefrom=")) {
	    errno = 0;
	    p = *cur + sizeof("closefrom=") - 1;
	    user_closefrom = strtonum(p, 4, INT_MAX, &errstr);
	    if (user_closefrom == 0) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
	if (MATCHES(*cur, "runas_user="******"runas_user="******"runas_group=")) {
	    *runas_group = *cur + sizeof("runas_group=") - 1;
	    sudo_user.flags |= RUNAS_GROUP_SPECIFIED;
	    continue;
	}
	if (MATCHES(*cur, "prompt=")) {
	    user_prompt = *cur + sizeof("prompt=") - 1;
	    def_passprompt_override = true;
	    continue;
	}
	if (MATCHES(*cur, "set_home=")) {
	    if (sudo_strtobool(*cur + sizeof("set_home=") - 1) == true)
		SET(flags, MODE_RESET_HOME);
	    continue;
	}
	if (MATCHES(*cur, "preserve_environment=")) {
	    if (sudo_strtobool(*cur + sizeof("preserve_environment=") - 1) == true)
		SET(flags, MODE_PRESERVE_ENV);
	    continue;
	}
	if (MATCHES(*cur, "run_shell=")) {
	    if (sudo_strtobool(*cur + sizeof("run_shell=") - 1) == true)
		SET(flags, MODE_SHELL);
	    continue;
	}
	if (MATCHES(*cur, "login_shell=")) {
	    if (sudo_strtobool(*cur + sizeof("login_shell=") - 1) == true) {
		SET(flags, MODE_LOGIN_SHELL);
		def_env_reset = true;
	    }
	    continue;
	}
	if (MATCHES(*cur, "implied_shell=")) {
	    if (sudo_strtobool(*cur + sizeof("implied_shell=") - 1) == true)
		SET(flags, MODE_IMPLIED_SHELL);
	    continue;
	}
	if (MATCHES(*cur, "preserve_groups=")) {
	    if (sudo_strtobool(*cur + sizeof("preserve_groups=") - 1) == true)
		SET(flags, MODE_PRESERVE_GROUPS);
	    continue;
	}
	if (MATCHES(*cur, "ignore_ticket=")) {
	    if (sudo_strtobool(*cur + sizeof("ignore_ticket=") - 1) == true)
		SET(flags, MODE_IGNORE_TICKET);
	    continue;
	}
	if (MATCHES(*cur, "noninteractive=")) {
	    if (sudo_strtobool(*cur + sizeof("noninteractive=") - 1) == true)
		SET(flags, MODE_NONINTERACTIVE);
	    continue;
	}
	if (MATCHES(*cur, "sudoedit=")) {
	    if (sudo_strtobool(*cur + sizeof("sudoedit=") - 1) == true)
		SET(flags, MODE_EDIT);
	    continue;
	}
	if (MATCHES(*cur, "login_class=")) {
	    login_class = *cur + sizeof("login_class=") - 1;
	    def_use_loginclass = true;
	    continue;
	}
#ifdef HAVE_PRIV_SET
	if (MATCHES(*cur, "runas_privs=")) {
	    def_privs = *cur + sizeof("runas_privs=") - 1;
	    continue;
	}
	if (MATCHES(*cur, "runas_limitprivs=")) {
	    def_limitprivs = *cur + sizeof("runas_limitprivs=") - 1;
	    continue;
	}
#endif /* HAVE_PRIV_SET */
#ifdef HAVE_SELINUX
	if (MATCHES(*cur, "selinux_role=")) {
	    user_role = *cur + sizeof("selinux_role=") - 1;
	    continue;
	}
	if (MATCHES(*cur, "selinux_type=")) {
	    user_type = *cur + sizeof("selinux_type=") - 1;
	    continue;
	}
#endif /* HAVE_SELINUX */
#ifdef HAVE_BSD_AUTH_H
	if (MATCHES(*cur, "bsdauth_type=")) {
	    login_style = *cur + sizeof("bsdauth_type=") - 1;
	    continue;
	}
#endif /* HAVE_BSD_AUTH_H */
	if (MATCHES(*cur, "network_addrs=")) {
	    interfaces_string = *cur + sizeof("network_addrs=") - 1;
	    set_interfaces(interfaces_string);
	    continue;
	}
	if (MATCHES(*cur, "max_groups=")) {
	    errno = 0;
	    p = *cur + sizeof("max_groups=") - 1;
	    sudo_user.max_groups = strtonum(p, 1, INT_MAX, &errstr);
	    if (sudo_user.max_groups == 0) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
	if (MATCHES(*cur, "remote_host=")) {
	    remhost = *cur + sizeof("remote_host=") - 1;
	    continue;
	}
    }

    for (cur = info->user_info; *cur != NULL; cur++) {
	if (MATCHES(*cur, "user="******"user="******"uid=")) {
	    p = *cur + sizeof("uid=") - 1;
	    user_uid = (uid_t) sudo_strtoid(p, NULL, NULL, &errstr);
	    if (errstr != NULL) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
	if (MATCHES(*cur, "gid=")) {
	    p = *cur + sizeof("gid=") - 1;
	    user_gid = (gid_t) sudo_strtoid(p, NULL, NULL, &errstr);
	    if (errstr != NULL) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
	if (MATCHES(*cur, "groups=")) {
	    groups = *cur + sizeof("groups=") - 1;
	    continue;
	}
	if (MATCHES(*cur, "cwd=")) {
	    user_cwd = sudo_estrdup(*cur + sizeof("cwd=") - 1);
	    continue;
	}
	if (MATCHES(*cur, "tty=")) {
	    user_tty = user_ttypath = sudo_estrdup(*cur + sizeof("tty=") - 1);
	    if (strncmp(user_tty, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
		user_tty += sizeof(_PATH_DEV) - 1;
	    continue;
	}
	if (MATCHES(*cur, "host=")) {
	    user_host = user_shost = sudo_estrdup(*cur + sizeof("host=") - 1);
	    if ((p = strchr(user_host, '.')))
		user_shost = sudo_estrndup(user_host, (size_t)(p - user_host));
	    continue;
	}
	if (MATCHES(*cur, "lines=")) {
	    errno = 0;
	    p = *cur + sizeof("lines=") - 1;
	    sudo_user.lines = strtonum(p, 1, INT_MAX, &errstr);
	    if (sudo_user.lines == 0) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
	if (MATCHES(*cur, "cols=")) {
	    errno = 0;
	    p = *cur + sizeof("cols=") - 1;
	    sudo_user.cols = strtonum(p, 1, INT_MAX, &errstr);
	    if (sudo_user.lines == 0) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
	if (MATCHES(*cur, "sid=")) {
	    p = *cur + sizeof("sid=") - 1;
	    sudo_user.sid = (pid_t) sudo_strtoid(p, NULL, NULL, &errstr);
	    if (errstr != NULL) {
		sudo_warnx(U_("%s: %s"), *cur, U_(errstr));
		goto bad;
	    }
	    continue;
	}
    }
    user_runhost = user_srunhost = sudo_estrdup(remhost ? remhost : user_host);
    if ((p = strchr(user_runhost, '.')))
	user_srunhost = sudo_estrndup(user_runhost, (size_t)(p - user_runhost));
    if (user_cwd == NULL)
	user_cwd = sudo_estrdup("unknown");
    if (user_tty == NULL)
	user_tty = sudo_estrdup("unknown"); /* user_ttypath remains NULL */

    if (groups != NULL && groups[0] != '\0') {
	/* sudo_parse_gids() will print a warning on error. */
	user_ngids = sudo_parse_gids(groups, &user_gid, &user_gids);
	if (user_ngids == -1)
	    goto bad;
    }

    /* Stash initial umask for later use. */
    user_umask = umask(SUDO_UMASK);
    umask(user_umask);

    /* Dump settings and user info (XXX - plugin args) */
    for (cur = info->settings; *cur != NULL; cur++)
	sudo_debug_printf(SUDO_DEBUG_INFO, "settings: %s", *cur);
    for (cur = info->user_info; *cur != NULL; cur++)
	sudo_debug_printf(SUDO_DEBUG_INFO, "user_info: %s", *cur);

#undef MATCHES
    debug_return_int(flags);

bad:
    debug_return_int(MODE_ERROR);
}