static int
master_service_apply_config_overrides(struct master_service *service,
struct setting_parser_context *parser,
const char **error_r)
{
const char *const *overrides;
unsigned int i, count;
overrides = array_get(&service->config_overrides, &count);
for (i = 0; i < count; i++) {
if (settings_parse_line(parser, overrides[i]) < 0) {
*error_r = t_strdup_printf(
"Invalid -o parameter %s: %s", overrides[i],
settings_parser_get_error(parser));
return -1;
}
settings_parse_set_key_expandeded(parser, service->set_pool,
t_strcut(overrides[i], '='));
}
return 0;
}
static void set_keyval(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
const char *key, const char *value)
{
struct setting_parser_context *set_parser = user->set_parser;
const char *str;
if (master_service_set_has_config_override(ctx->service, key)) {
/* this setting was already overridden with -o parameter */
if (mail_user_set_get_mail_debug(user->user_info,
user->user_set)) {
i_debug("Ignoring overridden (-o) userdb setting: %s",
key);
}
return;
}
str = t_strconcat(key, "=", value, NULL);
if (settings_parse_line(set_parser, str) < 0) {
i_fatal("Invalid userdb input '%s': %s", str,
settings_parser_get_error(set_parser));
}
}
static int
user_reply_handle(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
const struct auth_user_reply *reply,
const char **error_r)
{
const char *home = reply->home;
const char *chroot = reply->chroot;
const char *const *str, *line, *p;
unsigned int i, count;
int ret = 0;
if (reply->uid != (uid_t)-1) {
if (reply->uid == 0) {
*error_r = "userdb returned 0 as uid";
return -1;
}
user->uid_source = "userdb lookup";
set_keyval(ctx, user, "mail_uid", dec2str(reply->uid));
}
if (reply->gid != (uid_t)-1) {
user->gid_source = "userdb lookup";
set_keyval(ctx, user, "mail_gid", dec2str(reply->gid));
}
if (home != NULL && chroot == NULL &&
*user->user_set->valid_chroot_dirs != '\0' &&
(p = strstr(home, "/./")) != NULL) {
/* wu-ftpd like <chroot>/./<home> - check only if there's even
a possibility of using them (non-empty valid_chroot_dirs) */
chroot = t_strdup_until(home, p);
home = p + 2;
}
if (home != NULL)
set_keyval(ctx, user, "mail_home", home);
if (chroot != NULL) {
if (!validate_chroot(user->user_set, chroot)) {
*error_r = t_strdup_printf(
"userdb returned invalid chroot directory: %s "
"(see valid_chroot_dirs setting)", chroot);
return -1;
}
set_keyval(ctx, user, "mail_chroot", chroot);
}
user->anonymous = reply->anonymous;
str = array_get(&reply->extra_fields, &count);
for (i = 0; i < count; i++) {
line = str[i];
if (strncmp(line, "system_groups_user="******"nice=", 5) == 0) {
#ifdef HAVE_SETPRIORITY
int n;
if (str_to_int(line + 5, &n) < 0) {
i_error("userdb returned invalid nice value %s",
line + 5);
} else if (n != 0) {
if (setpriority(PRIO_PROCESS, 0, n) < 0)
i_error("setpriority(%d) failed: %m", n);
}
#endif
} else if (strncmp(line, "auth_token=", 11) == 0) {
user->auth_token = p_strdup(user->pool, line+11);
} else if (strncmp(line, "auth_user="******"admin=", 6) == 0) {
user->admin = line[6] == 'y' || line[6] == 'Y' ||
line[6] == '1';
} else T_BEGIN {
ret = set_line(ctx, user, line);
} T_END;
if (ret < 0)
break;
}
if (ret < 0) {
*error_r = t_strdup_printf("Invalid userdb input '%s': %s",
str[i], settings_parser_get_error(user->set_parser));
}
return ret;
}
int master_service_settings_read(struct master_service *service,
const struct master_service_settings_input *input,
struct master_service_settings_output *output_r,
const char **error_r)
{
ARRAY(const struct setting_parser_info *) all_roots;
const struct setting_parser_info *tmp_root;
struct setting_parser_context *parser;
struct istream *istream;
const char *path = NULL, *error;
void **sets;
unsigned int i;
int ret, fd = -1;
time_t now, timeout;
bool use_environment, retry;
memset(output_r, 0, sizeof(*output_r));
if (getenv("DOVECONF_ENV") == NULL &&
(service->flags & MASTER_SERVICE_FLAG_NO_CONFIG_SETTINGS) == 0) {
retry = service->config_fd != -1;
for (;;) {
fd = master_service_open_config(service, input,
&path, error_r);
if (fd == -1) {
if (errno == EACCES)
output_r->permission_denied = TRUE;
return -1;
}
if (config_send_request(service, input, fd,
path, error_r) == 0)
break;
i_close_fd(&fd);
if (!retry) {
config_exec_fallback(service, input);
return -1;
}
/* config process died, retry connecting */
retry = FALSE;
}
}
if (service->set_pool != NULL) {
if (service->set_parser != NULL)
settings_parser_deinit(&service->set_parser);
p_clear(service->set_pool);
} else {
service->set_pool =
pool_alloconly_create("master service settings", 16384);
}
p_array_init(&all_roots, service->set_pool, 8);
tmp_root = &master_service_setting_parser_info;
array_append(&all_roots, &tmp_root, 1);
if (service->want_ssl_settings) {
tmp_root = &master_service_ssl_setting_parser_info;
array_append(&all_roots, &tmp_root, 1);
}
if (input->roots != NULL) {
for (i = 0; input->roots[i] != NULL; i++)
array_append(&all_roots, &input->roots[i], 1);
}
parser = settings_parser_init_list(service->set_pool,
array_idx(&all_roots, 0), array_count(&all_roots),
SETTINGS_PARSER_FLAG_IGNORE_UNKNOWN_KEYS);
if (fd != -1) {
istream = i_stream_create_fd(fd, (size_t)-1);
now = time(NULL);
timeout = now + CONFIG_READ_TIMEOUT_SECS;
do {
alarm(timeout - now);
ret = config_read_reply_header(istream, path,
service->set_pool, input,
output_r, error_r);
if (ret == 0) {
ret = settings_parse_stream_read(parser,
istream);
if (ret < 0)
*error_r = settings_parser_get_error(parser);
}
alarm(0);
if (ret <= 0)
break;
/* most likely timed out, but just in case some other
signal was delivered early check if we need to
continue */
now = time(NULL);
} while (now < timeout);
i_stream_unref(&istream);
if (ret != 0) {
if (ret > 0) {
*error_r = t_strdup_printf(
"Timeout reading config from %s", path);
}
i_close_fd(&fd);
config_exec_fallback(service, input);
settings_parser_deinit(&parser);
return -1;
}
if ((service->flags & MASTER_SERVICE_FLAG_KEEP_CONFIG_OPEN) != 0 &&
service->config_fd == -1 && input->config_path == NULL)
service->config_fd = fd;
else
i_close_fd(&fd);
use_environment = FALSE;
} else {
use_environment = TRUE;
}
if (use_environment || service->keep_environment) {
if (settings_parse_environ(parser) < 0) {
*error_r = t_strdup(settings_parser_get_error(parser));
settings_parser_deinit(&parser);
return -1;
}
}
if (array_is_created(&service->config_overrides)) {
if (master_service_apply_config_overrides(service, parser,
error_r) < 0) {
settings_parser_deinit(&parser);
return -1;
}
}
if (!settings_parser_check(parser, service->set_pool, &error)) {
*error_r = t_strdup_printf("Invalid settings: %s", error);
settings_parser_deinit(&parser);
return -1;
}
sets = settings_parser_get_list(parser);
service->set = sets[0];
service->set_parser = parser;
if (service->set->version_ignore &&
(service->flags & MASTER_SERVICE_FLAG_STANDALONE) != 0) {
/* running standalone. we want to ignore plugin versions. */
service->version_string = NULL;
}
if (service->set->shutdown_clients)
master_service_set_die_with_master(master_service, TRUE);
/* if we change any settings afterwards, they're in expanded form.
especially all settings from userdb are already expanded. */
settings_parse_set_expanded(service->set_parser, TRUE);
return 0;
}