mail-storage-service.c revision 691f802ef6ec2105079d420ba26b21088402c6da
a8c5a86d183db25a57bf193c06b41e092ec2e151Timo Sirainen/* Copyright (c) 2009-2015 Dovecot authors, see the included COPYING file */
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#include "lib.h"
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen#include "ioloop.h"
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#include "array.h"
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#include "base64.h"
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen#include "hostpid.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "module-dir.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "restrict-access.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "eacces-error.h"
9e86ad9eb313004cd4c8b5427daeb4c241b57af6Timo Sirainen#include "ipwd.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "str.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "var-expand.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "dict.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "settings-parser.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "auth-master.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "master-service-private.h"
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#include "master-service-settings.h"
48f78a48f2e1cf299026544444666471ae16ad97Timo Sirainen#include "master-service-settings-cache.h"
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#include "mail-user.h"
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#include "mail-namespace.h"
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#include "mail-storage.h"
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#include "mail-storage-service.h"
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#include <stdlib.h>
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#include <sys/stat.h>
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#ifdef HAVE_SYS_TIME_H
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen# include <sys/time.h>
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#endif
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen#ifdef HAVE_SYS_RESOURCE_H
6e77746e501c2b45850b1c530836058ed75e09eeTimo Sirainen# include <sys/resource.h>
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen#endif
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen/* If time moves backwards more than this, kill ourself instead of sleeping. */
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen#define MAX_TIME_BACKWARDS_SLEEP 5
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen#define MAX_NOWARN_FORWARD_SECS 10
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen#define ERRSTR_INVALID_USER_SETTINGS \
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen "Invalid user settings. Refer to server log for more information."
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainenstruct mail_storage_service_privileges {
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen uid_t uid;
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen gid_t gid;
8c8f7ac580b661aee3d8b8dd37df4a9b41c77000Timo Sirainen const char *uid_source, *gid_source;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *home;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *chroot;
48f78a48f2e1cf299026544444666471ae16ad97Timo Sirainen};
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
48f78a48f2e1cf299026544444666471ae16ad97Timo Sirainenstruct mail_storage_service_ctx {
48f78a48f2e1cf299026544444666471ae16ad97Timo Sirainen pool_t pool;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen struct master_service *service;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen const char *default_log_prefix;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen struct auth_master_connection *conn, *iter_conn;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen struct auth_master_user_list_ctx *auth_list;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen const struct setting_parser_info **set_roots;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen enum mail_storage_service_flags flags;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *set_cache_module, *set_cache_service;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct master_service_settings_cache *set_cache;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen pool_t userdb_next_pool;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *const **userdb_next_fieldsp;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen unsigned int debug:1;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen unsigned int log_initialized:1;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen unsigned int config_permission_denied:1;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen};
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainenstruct mail_storage_service_user {
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen pool_t pool;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct mail_storage_service_ctx *service_ctx;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct mail_storage_service_input input;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen enum mail_storage_service_flags flags;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct ioloop_context *ioloop_ctx;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *log_prefix, *auth_token, *auth_user;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *system_groups_user, *uid_source, *gid_source;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const struct mail_user_settings *user_set;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const struct setting_parser_info *user_info;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct setting_parser_context *set_parser;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen unsigned int anonymous:1;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen unsigned int admin:1;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen};
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainenstruct module *mail_storage_service_modules = NULL;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainenstatic bool
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainenmail_user_set_get_mail_debug(const struct setting_parser_info *user_info,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const struct mail_user_settings *user_set)
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen{
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const struct mail_storage_settings *mail_set;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen mail_set = mail_user_set_get_driver_settings(user_info, user_set,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen MAIL_STORAGE_SET_DRIVER_NAME);
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen return mail_set->mail_debug;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen}
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainenstatic void set_keyval(struct mail_storage_service_ctx *ctx,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct mail_storage_service_user *user,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *key, const char *value)
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen{
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct setting_parser_context *set_parser = user->set_parser;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *str;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen if (master_service_set_has_config_override(ctx->service, key)) {
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen /* this setting was already overridden with -o parameter */
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen if (mail_user_set_get_mail_debug(user->user_info,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen user->user_set)) {
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen i_debug("Ignoring overridden (-o) userdb setting: %s",
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen key);
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen }
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen return;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen }
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen str = t_strconcat(key, "=", value, NULL);
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen if (settings_parse_line(set_parser, str) < 0) {
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen i_fatal("Invalid userdb input '%s': %s", str,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen settings_parser_get_error(set_parser));
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen }
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen}
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainenstatic int set_line(struct mail_storage_service_ctx *ctx,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct mail_storage_service_user *user,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *line)
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen{
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen struct setting_parser_context *set_parser = user->set_parser;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen bool mail_debug;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *key, *orig_key, *append_value = NULL;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen unsigned int len;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen int ret;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen mail_debug = mail_user_set_get_mail_debug(user->user_info,
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen user->user_set);
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen if (strchr(line, '=') == NULL)
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen line = t_strconcat(line, "=yes", NULL);
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen orig_key = key = t_strcut(line, '=');
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen len = strlen(key);
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen if (len > 0 && key[len-1] == '+') {
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen /* key+=value */
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen append_value = line + len + 1;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen key = t_strndup(key, len-1);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen if (!settings_parse_is_valid_key(set_parser, key)) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen /* assume it's a plugin setting */
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen key = t_strconcat("plugin/", key, NULL);
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen line = t_strconcat("plugin/", line, NULL);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (master_service_set_has_config_override(ctx->service, key)) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen /* this setting was already overridden with -o parameter */
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (mail_debug) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen i_debug("Ignoring overridden (-o) userdb setting: %s",
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen key);
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen return 1;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (append_value != NULL) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen const void *value;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen enum setting_type type;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen value = settings_parse_get_value(set_parser, key, &type);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (type == SET_STR) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *const *strp = value;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen line = t_strdup_printf("%s=%s%s",
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen key, *strp, append_value);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen } else {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen i_error("Ignoring %s userdb setting. "
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen "'+' can only be used for strings.", orig_key);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen ret = settings_parse_line(set_parser, line);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (mail_debug && ret >= 0) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (strstr(key, "pass") != NULL) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen /* possibly a password field (e.g. imapc_password).
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen hide the value. */
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen line = t_strconcat(key, "=<hidden>", NULL);
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen i_debug(ret == 0 ?
2767104d81e97a109f0aa9758792bfa1da325a97Timo Sirainen "Unknown userdb setting: %s" :
9e86ad9eb313004cd4c8b5427daeb4c241b57af6Timo Sirainen "Added userdb setting: %s", line);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen return ret;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen}
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
9e86ad9eb313004cd4c8b5427daeb4c241b57af6Timo Sirainenstatic bool validate_chroot(const struct mail_user_settings *user_set,
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen const char *dir)
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen{
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen const char *const *chroot_dirs;
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen if (*dir == '\0')
9e86ad9eb313004cd4c8b5427daeb4c241b57af6Timo Sirainen return FALSE;
9e86ad9eb313004cd4c8b5427daeb4c241b57af6Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (*user_set->valid_chroot_dirs == '\0')
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen return FALSE;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen chroot_dirs = t_strsplit(user_set->valid_chroot_dirs, ":");
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen while (*chroot_dirs != NULL) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (**chroot_dirs != '\0' &&
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen strncmp(dir, *chroot_dirs, strlen(*chroot_dirs)) == 0)
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen return TRUE;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen chroot_dirs++;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen return FALSE;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen}
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainenstatic int
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainenuser_reply_handle(struct mail_storage_service_ctx *ctx,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen struct mail_storage_service_user *user,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const struct auth_user_reply *reply,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char **error_r)
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen{
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *home = reply->home;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *chroot = reply->chroot;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *const *str, *line, *p;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen unsigned int i, count;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen int ret = 0;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (reply->uid != (uid_t)-1) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (reply->uid == 0) {
c2bb1764c359ce85a7f7f789ead11dd613ff9769Timo Sirainen *error_r = "userdb returned 0 as uid";
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen return -1;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
2767104d81e97a109f0aa9758792bfa1da325a97Timo Sirainen user->uid_source = "userdb lookup";
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen set_keyval(ctx, user, "mail_uid", dec2str(reply->uid));
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen }
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (reply->gid != (uid_t)-1) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen user->gid_source = "userdb lookup";
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen set_keyval(ctx, user, "mail_gid", dec2str(reply->gid));
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen }
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (home != NULL && chroot == NULL &&
301b1524a822cec7b79856e8c599112c754bc4c0Timo Sirainen *user->user_set->valid_chroot_dirs != '\0' &&
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen (p = strstr(home, "/./")) != NULL) {
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen /* wu-ftpd like <chroot>/./<home> - check only if there's even
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen a possibility of using them (non-empty valid_chroot_dirs) */
b5ff746939712c6a9bef71405fa786d5471cf177Timo Sirainen chroot = t_strdup_until(home, p);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen home = p + 2;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (home != NULL)
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen set_keyval(ctx, user, "mail_home", home);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (chroot != NULL) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (!validate_chroot(user->user_set, chroot)) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen *error_r = t_strdup_printf(
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen "userdb returned invalid chroot directory: %s "
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen "(see valid_chroot_dirs setting)", chroot);
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen return -1;
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen }
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen set_keyval(ctx, user, "mail_chroot", chroot);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen user->anonymous = reply->anonymous;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen str = array_get(&reply->extra_fields, &count);
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen for (i = 0; i < count; i++) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen line = str[i];
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (strncmp(line, "system_groups_user=", 19) == 0) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen user->system_groups_user =
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen p_strdup(user->pool, line + 19);
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen } else if (strncmp(line, "nice=", 5) == 0) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen#ifdef HAVE_SETPRIORITY
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen int n;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (str_to_int(line + 5, &n) < 0) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen i_error("userdb returned invalid nice value %s",
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen line + 5);
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen } else if (n != 0) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen if (setpriority(PRIO_PROCESS, 0, n) < 0)
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen i_error("setpriority(%d) failed: %m", n);
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen#endif
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen } else if (strncmp(line, "auth_token=", 11) == 0) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen user->auth_token = p_strdup(user->pool, line+11);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen } else if (strncmp(line, "auth_user=", 10) == 0) {
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen user->auth_user = p_strdup(user->pool, line+10);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen } else if (strncmp(line, "admin=", 6) == 0) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen user->admin = line[6] == 'y' || line[6] == 'Y' ||
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen line[6] == '1';
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen } else T_BEGIN {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen ret = set_line(ctx, user, line);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen } T_END;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (ret < 0)
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen break;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (ret < 0) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen *error_r = t_strdup_printf("Invalid userdb input '%s': %s",
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen str[i], settings_parser_get_error(user->set_parser));
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen return ret;
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen}
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainenstatic int
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainenservice_auth_userdb_lookup(struct mail_storage_service_ctx *ctx,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const struct mail_storage_service_input *input,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen pool_t pool, const char **user,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *const **fields_r,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char **error_r)
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen{
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen struct auth_user_info info;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen const char *new_username;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen int ret;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
0dc7891233a973829f00371b27810f849b987c66Timo Sirainen memset(&info, 0, sizeof(info));
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen info.service = input->service != NULL ? input->service :
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen ctx->service->name;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen info.local_ip = input->local_ip;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen info.remote_ip = input->remote_ip;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen info.local_port = input->local_port;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen info.remote_port = input->remote_port;
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen ret = auth_master_user_lookup(ctx->conn, *user, &info, pool,
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen &new_username, fields_r);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (ret > 0) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (strcmp(*user, new_username) != 0) {
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen if (ctx->debug)
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen i_debug("changed username to %s", new_username);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen *user = t_strdup(new_username);
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen }
d9fdacd5fb3e07997e5c389739d2054f0c8441d8Timo Sirainen *user = new_username;
} else if (ret == 0)
*error_r = "Unknown user";
else if (**fields_r != NULL) {
*error_r = t_strdup(**fields_r);
ret = -2;
} else {
*error_r = MAIL_ERRSTR_CRITICAL_MSG;
}
return ret;
}
static bool parse_uid(const char *str, uid_t *uid_r, const char **error_r)
{
struct passwd pw;
if (str_to_uid(str, uid_r) == 0)
return TRUE;
switch (i_getpwnam(str, &pw)) {
case -1:
*error_r = t_strdup_printf("getpwnam(%s) failed: %m", str);
return FALSE;
case 0:
*error_r = t_strconcat("Unknown UNIX UID user: ", str, NULL);
return FALSE;
default:
*uid_r = pw.pw_uid;
return TRUE;
}
}
static bool parse_gid(const char *str, gid_t *gid_r, const char **error_r)
{
struct group gr;
if (str_to_gid(str, gid_r) == 0)
return TRUE;
switch (i_getgrnam(str, &gr)) {
case -1:
*error_r = t_strdup_printf("getgrnam(%s) failed: %m", str);
return FALSE;
case 0:
*error_r = t_strconcat("Unknown UNIX GID group: ", str, NULL);
return FALSE;
default:
*gid_r = gr.gr_gid;
return TRUE;
}
}
static const struct var_expand_table *
get_var_expand_table(struct master_service *service,
struct mail_storage_service_user *user,
const struct mail_storage_service_input *input,
const struct mail_storage_service_privileges *priv)
{
static struct var_expand_table static_tab[] = {
{ 'u', NULL, "user" },
{ 'n', NULL, "username" },
{ 'd', NULL, "domain" },
{ 's', NULL, "service" },
{ 'l', NULL, "lip" },
{ 'r', NULL, "rip" },
{ 'p', NULL, "pid" },
{ 'i', NULL, "uid" },
{ '\0', NULL, "gid" },
{ '\0', NULL, "session" },
{ '\0', NULL, "auth_user" },
{ '\0', NULL, "auth_username" },
{ '\0', NULL, "auth_domain" },
{ '\0', NULL, NULL }
};
struct var_expand_table *tab;
tab = t_malloc(sizeof(static_tab));
memcpy(tab, static_tab, sizeof(static_tab));
tab[0].value = input->username;
tab[1].value = t_strcut(input->username, '@');
tab[2].value = strchr(input->username, '@');
if (tab[2].value != NULL) tab[2].value++;
tab[3].value = service->name;
tab[4].value = net_ip2addr(&input->local_ip);
tab[5].value = net_ip2addr(&input->remote_ip);
tab[6].value = my_pid;
tab[7].value = priv == NULL ? NULL :
dec2str(priv->uid == (uid_t)-1 ? geteuid() : priv->uid);
tab[8].value = priv == NULL ? NULL :
dec2str(priv->gid == (gid_t)-1 ? getegid() : priv->gid);
tab[9].value = input->session_id;
if (user == NULL || user->auth_user == NULL) {
tab[10].value = tab[0].value;
tab[11].value = tab[1].value;
tab[12].value = tab[2].value;
} else {
tab[10].value = user->auth_user;
tab[11].value = t_strcut(user->auth_user, '@');
tab[12].value = strchr(user->auth_user, '@');
}
return tab;
}
const struct var_expand_table *
mail_storage_service_get_var_expand_table(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_input *input)
{
struct mail_storage_service_privileges priv;
memset(&priv, 0, sizeof(priv));
priv.uid = (uid_t)-1;
priv.gid = (gid_t)-1;
return get_var_expand_table(ctx->service, NULL, input, &priv);
}
static const char *
user_expand_varstr(struct master_service *service,
struct mail_storage_service_user *user,
struct mail_storage_service_privileges *priv,
const char *str)
{
string_t *ret;
if (*str == SETTING_STRVAR_EXPANDED[0])
return str + 1;
i_assert(*str == SETTING_STRVAR_UNEXPANDED[0]);
ret = t_str_new(256);
var_expand(ret, str + 1,
get_var_expand_table(service, user, &user->input, priv));
return str_c(ret);
}
static int
service_parse_privileges(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
struct mail_storage_service_privileges *priv_r,
const char **error_r)
{
const struct mail_user_settings *set = user->user_set;
uid_t uid = (uid_t)-1;
gid_t gid = (gid_t)-1;
memset(priv_r, 0, sizeof(*priv_r));
if (*set->mail_uid != '\0') {
if (!parse_uid(set->mail_uid, &uid, error_r)) {
*error_r = t_strdup_printf("%s (from %s)", *error_r,
user->uid_source);
return -1;
}
if (uid < (uid_t)set->first_valid_uid ||
(set->last_valid_uid != 0 &&
uid > (uid_t)set->last_valid_uid)) {
*error_r = t_strdup_printf(
"Mail access for users with UID %s not permitted "
"(see first_valid_uid in config file, uid from %s).",
dec2str(uid), user->uid_source);
return -1;
}
}
priv_r->uid = uid;
priv_r->uid_source = user->uid_source;
if (*set->mail_gid != '\0') {
if (!parse_gid(set->mail_gid, &gid, error_r)) {
*error_r = t_strdup_printf("%s (from %s)", *error_r,
user->gid_source);
return -1;
}
if (gid < (gid_t)set->first_valid_gid ||
(set->last_valid_gid != 0 &&
gid > (gid_t)set->last_valid_gid)) {
*error_r = t_strdup_printf(
"Mail access for users with GID %s not permitted "
"(see first_valid_gid in config file, gid from %s).",
dec2str(gid), user->gid_source);
return -1;
}
}
priv_r->gid = gid;
priv_r->gid_source = user->gid_source;
/* variable strings are expanded in mail_user_init(),
but we need the home and chroot sooner so do them separately here. */
priv_r->home = user_expand_varstr(ctx->service, user, priv_r,
user->user_set->mail_home);
priv_r->chroot = user_expand_varstr(ctx->service, user, priv_r,
user->user_set->mail_chroot);
return 0;
}
static void mail_storage_service_seteuid_root(void)
{
if (seteuid(0) < 0) {
i_fatal("mail-storage-service: "
"Failed to restore temporarily dropped root privileges: "
"seteuid(0) failed: %m");
}
}
static int
service_drop_privileges(struct mail_storage_service_user *user,
struct mail_storage_service_privileges *priv,
bool disallow_root, bool keep_setuid_root,
bool setenv_only, const char **error_r)
{
const struct mail_user_settings *set = user->user_set;
struct restrict_access_settings rset;
uid_t current_euid, setuid_uid = 0;
const char *cur_chroot, *error;
current_euid = geteuid();
restrict_access_init(&rset);
restrict_access_get_env(&rset);
if (priv->uid != (uid_t)-1) {
rset.uid = priv->uid;
rset.uid_source = priv->uid_source;
} else if (rset.uid == (uid_t)-1 &&
disallow_root && current_euid == 0) {
*error_r = "User is missing UID (see mail_uid setting)";
return -1;
}
if (priv->gid != (gid_t)-1) {
rset.gid = priv->gid;
rset.gid_source = priv->gid_source;
} else if (rset.gid == (gid_t)-1 && disallow_root &&
set->first_valid_gid > 0 && getegid() == 0) {
*error_r = "User is missing GID (see mail_gid setting)";
return -1;
}
if (*set->mail_privileged_group != '\0') {
if (!parse_gid(set->mail_privileged_group, &rset.privileged_gid,
&error)) {
*error_r = t_strdup_printf(
"%s (in mail_privileged_group setting)", error);
return -1;
}
}
if (*set->mail_access_groups != '\0') {
rset.extra_groups = t_strconcat(set->mail_access_groups, ",",
rset.extra_groups, NULL);
}
rset.first_valid_gid = set->first_valid_gid;
rset.last_valid_gid = set->last_valid_gid;
rset.chroot_dir = *priv->chroot == '\0' ? NULL : priv->chroot;
rset.system_groups_user = user->system_groups_user;
cur_chroot = restrict_access_get_current_chroot();
if (cur_chroot != NULL) {
/* we're already chrooted. make sure the chroots are equal. */
if (rset.chroot_dir == NULL) {
*error_r = "Process is already chrooted, "
"can't un-chroot for this user";
return -1;
}
if (strcmp(rset.chroot_dir, cur_chroot) != 0) {
*error_r = t_strdup_printf(
"Process is already chrooted to %s, "
"can't chroot to %s", cur_chroot, priv->chroot);
return -1;
}
/* chrooting to same directory where we're already chrooted */
rset.chroot_dir = NULL;
}
if (disallow_root &&
(rset.uid == 0 || (rset.uid == (uid_t)-1 && current_euid == 0))) {
*error_r = "Mail access not allowed for root";
return -1;
}
if (keep_setuid_root) {
if (current_euid != rset.uid) {
if (current_euid != 0) {
/* we're changing the UID,
switch back to root first */
mail_storage_service_seteuid_root();
}
setuid_uid = rset.uid;
}
rset.uid = (uid_t)-1;
disallow_root = FALSE;
}
if (!setenv_only) {
restrict_access(&rset, *priv->home == '\0' ? NULL : priv->home,
disallow_root);
} else {
restrict_access_set_env(&rset);
}
if (setuid_uid != 0 && !setenv_only) {
if (seteuid(setuid_uid) < 0)
i_fatal("mail-storage-service: seteuid(%s) failed: %m",
dec2str(setuid_uid));
}
return 0;
}
static int
mail_storage_service_init_post(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
struct mail_storage_service_privileges *priv,
struct mail_user **mail_user_r,
const char **error_r)
{
const struct mail_storage_settings *mail_set;
const char *home = priv->home;
struct mail_user *mail_user;
/* NOTE: if more user initialization is added, add it also to
mail_user_dup() */
mail_user = mail_user_alloc(user->input.username, user->user_info,
user->user_set);
mail_user->_service_user = user;
mail_user_set_home(mail_user, *home == '\0' ? NULL : home);
mail_user_set_vars(mail_user, ctx->service->name,
&user->input.local_ip, &user->input.remote_ip);
mail_user->uid = priv->uid == (uid_t)-1 ? geteuid() : priv->uid;
mail_user->gid = priv->gid == (gid_t)-1 ? getegid() : priv->gid;
mail_user->anonymous = user->anonymous;
mail_user->admin = user->admin;
mail_user->auth_token = p_strdup(mail_user->pool, user->auth_token);
mail_user->auth_user = p_strdup(mail_user->pool, user->auth_user);
mail_user->session_id =
p_strdup(mail_user->pool, user->input.session_id);
mail_user->userdb_fields = user->input.userdb_fields == NULL ? NULL :
p_strarray_dup(mail_user->pool, user->input.userdb_fields);
mail_set = mail_user_set_get_storage_set(mail_user);
if (mail_set->mail_debug) {
string_t *str = t_str_new(64);
str_printfa(str, "Effective uid=%s, gid=%s, home=%s",
dec2str(geteuid()), dec2str(getegid()), home);
if (*priv->chroot != '\0')
str_printfa(str, ", chroot=%s", priv->chroot);
i_debug("%s", str_c(str));
}
if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0 &&
(user->flags & MAIL_STORAGE_SERVICE_FLAG_ENABLE_CORE_DUMPS) == 0) {
/* we don't want to write core files to any users' home
directories since they could contain information about other
users' mails as well. so do no chdiring to home. */
} else if (*home != '\0' &&
(user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_CHDIR) == 0) {
/* If possible chdir to home directory, so that core file
could be written in case we crash. */
if (chdir(home) < 0) {
if (errno == EACCES) {
i_error("%s", eacces_error_get("chdir",
t_strconcat(home, "/", NULL)));
} if (errno != ENOENT)
i_error("chdir(%s) failed: %m", home);
else if (mail_set->mail_debug)
i_debug("Home dir not found: %s", home);
}
}
if (mail_user_init(mail_user, error_r) < 0) {
mail_user_unref(&mail_user);
return -1;
}
if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_NAMESPACES) == 0) {
if (mail_namespaces_init(mail_user, error_r) < 0) {
mail_user_unref(&mail_user);
return -1;
}
}
*mail_user_r = mail_user;
return 0;
}
void mail_storage_service_io_activate_user(struct mail_storage_service_user *user)
{
i_set_failure_prefix("%s", user->log_prefix);
}
void mail_storage_service_io_deactivate_user(struct mail_storage_service_user *user)
{
i_set_failure_prefix("%s", user->service_ctx->default_log_prefix);
}
void mail_storage_service_io_deactivate(struct mail_storage_service_ctx *ctx)
{
i_set_failure_prefix("%s", ctx->default_log_prefix);
}
static const char *
mail_storage_service_input_var_userdb(const char *data, void *context)
{
struct mail_storage_service_user *user = context;
const char *field_name = data;
unsigned int i, field_name_len;
if (user == NULL || user->input.userdb_fields == NULL)
return NULL;
field_name_len = strlen(field_name);
for (i = 0; user->input.userdb_fields[i] != NULL; i++) {
if (strncmp(user->input.userdb_fields[i], field_name,
field_name_len) == 0 &&
user->input.userdb_fields[i][field_name_len] == '=')
return user->input.userdb_fields[i] + field_name_len+1;
}
return NULL;
}
static void
mail_storage_service_var_expand(struct mail_storage_service_ctx *ctx,
string_t *str, const char *format,
struct mail_storage_service_user *user,
const struct mail_storage_service_input *input,
const struct mail_storage_service_privileges *priv)
{
static const struct var_expand_func_table func_table[] = {
{ "userdb", mail_storage_service_input_var_userdb },
{ NULL, NULL }
};
var_expand_with_funcs(str, format,
get_var_expand_table(ctx->service, user, input, priv),
func_table, user);
}
static void
mail_storage_service_init_log(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
struct mail_storage_service_privileges *priv)
{
ctx->log_initialized = TRUE;
T_BEGIN {
string_t *str;
str = t_str_new(256);
mail_storage_service_var_expand(ctx, str,
user->user_set->mail_log_prefix,
user, &user->input, priv);
user->log_prefix = p_strdup(user->pool, str_c(str));
} T_END;
master_service_init_log(ctx->service, user->log_prefix);
if (master_service_get_client_limit(master_service) == 1)
i_set_failure_send_prefix(user->log_prefix);
user->ioloop_ctx = io_loop_context_new(current_ioloop);
io_loop_context_add_callbacks(user->ioloop_ctx,
mail_storage_service_io_activate_user,
mail_storage_service_io_deactivate_user,
user);
}
static void mail_storage_service_time_moved(time_t old_time, time_t new_time)
{
long diff = new_time - old_time;
if (diff > 0) {
if (diff > MAX_NOWARN_FORWARD_SECS)
i_warning("Time jumped forwards %ld seconds", diff);
return;
}
diff = -diff;
if (diff > MAX_TIME_BACKWARDS_SLEEP) {
i_fatal("Time just moved backwards by %ld seconds. "
"This might cause a lot of problems, "
"so I'll just kill myself now. "
"http://wiki2.dovecot.org/TimeMovedBackwards", diff);
} else {
i_error("Time just moved backwards by %ld seconds. "
"I'll sleep now until we're back in present. "
"http://wiki2.dovecot.org/TimeMovedBackwards", diff);
/* Sleep extra second to make sure usecs also grows. */
diff++;
while (diff > 0 && sleep(diff) != 0) {
/* don't use sleep()'s return value, because
it could get us to a long loop in case
interrupts just keep coming */
diff = old_time - time(NULL) + 1;
}
}
}
struct mail_storage_service_ctx *
mail_storage_service_init(struct master_service *service,
const struct setting_parser_info *set_roots[],
enum mail_storage_service_flags flags)
{
struct mail_storage_service_ctx *ctx;
const char *version;
pool_t pool;
unsigned int count;
version = master_service_get_version_string(service);
if (version != NULL && strcmp(version, PACKAGE_VERSION) != 0) {
i_fatal("Version mismatch: libdovecot-storage.so is '%s', "
"while the running Dovecot binary is '%s'",
PACKAGE_VERSION, version);
}
if ((flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0 &&
geteuid() != 0) {
/* service { user } isn't root. the permission drop can't be
temporary. */
flags &= ~MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP;
}
(void)umask(0077);
io_loop_set_time_moved_callback(current_ioloop,
mail_storage_service_time_moved);
mail_storage_init();
mail_storage_register_all();
mailbox_list_register_all();
pool = pool_alloconly_create("mail storage service", 2048);
ctx = p_new(pool, struct mail_storage_service_ctx, 1);
ctx->pool = pool;
ctx->service = service;
ctx->flags = flags;
/* @UNSAFE */
if (set_roots == NULL)
count = 0;
else
for (count = 0; set_roots[count] != NULL; count++) ;
ctx->set_roots =
p_new(pool, const struct setting_parser_info *, count + 2);
ctx->set_roots[0] = &mail_user_setting_parser_info;
if (set_roots != NULL) {
memcpy(ctx->set_roots + 1, set_roots,
sizeof(*ctx->set_roots) * count);
}
/* do all the global initialization. delay initializing plugins until
we drop privileges the first time. */
if ((flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) == 0) {
/* note: we may not have read any settings yet, so this logging
may still be going to wrong location */
ctx->default_log_prefix =
p_strconcat(pool, service->name, ": ", NULL);
master_service_init_log(service, ctx->default_log_prefix);
}
dict_drivers_register_builtin();
return ctx;
}
struct auth_master_connection *
mail_storage_service_get_auth_conn(struct mail_storage_service_ctx *ctx)
{
i_assert(ctx->conn != NULL);
return ctx->conn;
}
static enum mail_storage_service_flags
mail_storage_service_input_get_flags(struct mail_storage_service_ctx *ctx,
const struct mail_storage_service_input *input)
{
enum mail_storage_service_flags flags;
flags = (ctx->flags & ~input->flags_override_remove) |
input->flags_override_add;
if (input->no_userdb_lookup) {
/* FIXME: for API backwards compatibility only */
flags &= ~MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP;
}
return flags;
}
int mail_storage_service_read_settings(struct mail_storage_service_ctx *ctx,
const struct mail_storage_service_input *input,
pool_t pool,
const struct setting_parser_info **user_info_r,
const struct setting_parser_context **parser_r,
const char **error_r)
{
struct master_service_settings_input set_input;
const struct setting_parser_info *const *roots;
struct master_service_settings_output set_output;
const struct dynamic_settings_parser *dyn_parsers;
enum mail_storage_service_flags flags;
unsigned int i;
ctx->config_permission_denied = FALSE;
flags = input == NULL ? ctx->flags :
mail_storage_service_input_get_flags(ctx, input);
memset(&set_input, 0, sizeof(set_input));
set_input.roots = ctx->set_roots;
set_input.preserve_user = TRUE;
/* settings reader may exec doveconf, which is going to clear
environment, and if we're not doing a userdb lookup we want to
use $HOME */
set_input.preserve_home =
(flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) == 0;
set_input.use_sysexits =
(flags & MAIL_STORAGE_SERVICE_FLAG_USE_SYSEXITS) != 0;
if (input != NULL) {
set_input.module = input->module;
set_input.service = input->service;
set_input.username = input->username;
set_input.local_ip = input->local_ip;
set_input.remote_ip = input->remote_ip;
}
if (input == NULL) {
/* global settings read - don't create a cache for thi */
} else if (ctx->set_cache == NULL) {
ctx->set_cache_module = p_strdup(ctx->pool, set_input.module);
ctx->set_cache_service = p_strdup(ctx->pool, set_input.service);
ctx->set_cache = master_service_settings_cache_init(
ctx->service, set_input.module, set_input.service);
} else {
/* already looked up settings at least once.
we really shouldn't be execing anymore. */
set_input.never_exec = TRUE;
}
dyn_parsers = mail_storage_get_dynamic_parsers(pool);
if (null_strcmp(set_input.module, ctx->set_cache_module) == 0 &&
null_strcmp(set_input.service, ctx->set_cache_service) == 0 &&
ctx->set_cache != NULL) {
if (master_service_settings_cache_read(ctx->set_cache,
&set_input, dyn_parsers,
parser_r, error_r) < 0) {
*error_r = t_strdup_printf(
"Error reading configuration: %s", *error_r);
return -1;
}
} else {
settings_parser_dyn_update(pool, &set_input.roots, dyn_parsers);
if (master_service_settings_read(ctx->service, &set_input,
&set_output, error_r) < 0) {
*error_r = t_strdup_printf(
"Error reading configuration: %s", *error_r);
ctx->config_permission_denied =
set_output.permission_denied;
return -1;
}
*parser_r = ctx->service->set_parser;
}
roots = settings_parser_get_roots(*parser_r);
for (i = 0; roots[i] != NULL; i++) {
if (strcmp(roots[i]->module_name,
mail_user_setting_parser_info.module_name) == 0) {
*user_info_r = roots[i];
return 0;
}
}
i_unreached();
return -1;
}
void mail_storage_service_set_auth_conn(struct mail_storage_service_ctx *ctx,
struct auth_master_connection *conn)
{
i_assert(ctx->conn == NULL);
i_assert(mail_user_auth_master_conn == NULL);
ctx->conn = conn;
mail_user_auth_master_conn = conn;
}
static void
mail_storage_service_first_init(struct mail_storage_service_ctx *ctx,
const struct setting_parser_info *user_info,
const struct mail_user_settings *user_set)
{
enum auth_master_flags flags = 0;
ctx->debug = mail_user_set_get_mail_debug(user_info, user_set);
if (ctx->debug)
flags |= AUTH_MASTER_FLAG_DEBUG;
if ((ctx->flags & MAIL_STORAGE_SERVICE_FLAG_NO_IDLE_TIMEOUT) != 0)
flags |= AUTH_MASTER_FLAG_NO_IDLE_TIMEOUT;
mail_storage_service_set_auth_conn(ctx,
auth_master_init(user_set->auth_socket_path, flags));
}
static int
mail_storage_service_load_modules(struct mail_storage_service_ctx *ctx,
const struct setting_parser_info *user_info,
const struct mail_user_settings *user_set,
const char **error_r)
{
struct module_dir_load_settings mod_set;
if (*user_set->mail_plugins == '\0')
return 0;
if ((ctx->flags & MAIL_STORAGE_SERVICE_FLAG_NO_PLUGINS) != 0)
return 0;
memset(&mod_set, 0, sizeof(mod_set));
mod_set.abi_version = DOVECOT_ABI_VERSION;
mod_set.binary_name = master_service_get_name(ctx->service);
mod_set.setting_name = "mail_plugins";
mod_set.require_init_funcs = TRUE;
mod_set.debug = mail_user_set_get_mail_debug(user_info, user_set);
return module_dir_try_load_missing(&mail_storage_service_modules,
user_set->mail_plugin_dir,
user_set->mail_plugins,
&mod_set, error_r);
}
static int extra_field_key_cmp_p(const char *const *s1, const char *const *s2)
{
const char *p1 = *s1, *p2 = *s2;
for (; *p1 == *p2; p1++, p2++) {
if (*p1 == '\0')
return 0;
}
if (*p1 == '=')
return -1;
if (*p2 == '=')
return 1;
return *p1 - *p2;
}
static void
mail_storage_service_set_log_prefix(struct mail_storage_service_ctx *ctx,
const struct mail_user_settings *user_set,
struct mail_storage_service_user *user,
const struct mail_storage_service_input *input,
const struct mail_storage_service_privileges *priv)
{
string_t *str;
str = t_str_new(256);
mail_storage_service_var_expand(ctx, str, user_set->mail_log_prefix,
user, input, priv);
i_set_failure_prefix("%s", str_c(str));
}
static const char *mail_storage_service_generate_session_id(pool_t pool)
{
guid_128_t guid;
string_t *str = str_new(pool, MAX_BASE64_ENCODED_SIZE(sizeof(guid)));
guid_128_generate(guid);
base64_encode(guid, sizeof(guid), str);
/* remove the trailing "==" */
i_assert(str_data(str)[str_len(str)-2] == '=');
str_truncate(str, str_len(str)-2);
return str_c(str);
}
static int
mail_storage_service_lookup_real(struct mail_storage_service_ctx *ctx,
const struct mail_storage_service_input *input,
bool update_log_prefix,
struct mail_storage_service_user **user_r,
const char **error_r)
{
enum mail_storage_service_flags flags;
struct mail_storage_service_user *user;
const char *username = input->username;
const struct setting_parser_info *user_info;
const struct mail_user_settings *user_set;
const char *const *userdb_fields, *error;
struct auth_user_reply reply;
const struct setting_parser_context *set_parser;
void **sets;
pool_t user_pool, temp_pool;
int ret = 1;
user_pool = pool_alloconly_create(MEMPOOL_GROWING"mail storage service user", 1024*6);
flags = mail_storage_service_input_get_flags(ctx, input);
if ((flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0 &&
geteuid() != 0) {
/* we dropped privileges only temporarily. switch back to root
before reading settings, so we'll definitely have enough
permissions to connect to the config socket. */
mail_storage_service_seteuid_root();
}
if (mail_storage_service_read_settings(ctx, input, user_pool,
&user_info, &set_parser,
&error) < 0) {
if (ctx->config_permission_denied) {
/* just restart and maybe next time we will open the
config socket before dropping privileges */
i_fatal("%s", error);
}
i_error("%s", error);
pool_unref(&user_pool);
*error_r = MAIL_ERRSTR_CRITICAL_MSG;
return -1;
}
if ((flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) == 0 &&
!ctx->log_initialized) {
/* initialize logging again, in case we only read the
settings for the first above */
ctx->log_initialized = TRUE;
master_service_init_log(ctx->service,
t_strconcat(ctx->service->name, ": ", NULL));
update_log_prefix = TRUE;
}
sets = master_service_settings_parser_get_others(master_service,
set_parser);
user_set = sets[0];
if (update_log_prefix)
mail_storage_service_set_log_prefix(ctx, user_set, NULL, input, NULL);
if (ctx->conn == NULL)
mail_storage_service_first_init(ctx, user_info, user_set);
/* load global plugins */
if (mail_storage_service_load_modules(ctx, user_info, user_set, &error) < 0) {
i_error("%s", error);
pool_unref(&user_pool);
*error_r = MAIL_ERRSTR_CRITICAL_MSG;
return -1;
}
if (ctx->userdb_next_pool == NULL)
temp_pool = pool_alloconly_create("userdb lookup", 2048);
else {
temp_pool = ctx->userdb_next_pool;
ctx->userdb_next_pool = NULL;
pool_ref(temp_pool);
}
if ((flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) != 0) {
ret = service_auth_userdb_lookup(ctx, input, temp_pool,
&username, &userdb_fields,
error_r);
if (ret <= 0) {
pool_unref(&temp_pool);
pool_unref(&user_pool);
return ret;
}
if (ctx->userdb_next_fieldsp != NULL)
*ctx->userdb_next_fieldsp = userdb_fields;
} else {
userdb_fields = input->userdb_fields;
}
user = p_new(user_pool, struct mail_storage_service_user, 1);
user->service_ctx = ctx;
user->pool = user_pool;
user->input = *input;
user->input.userdb_fields = userdb_fields == NULL ? NULL :
p_strarray_dup(user_pool, userdb_fields);
user->input.username = p_strdup(user_pool, username);
user->input.session_id = p_strdup(user_pool, input->session_id);
if (user->input.session_id == NULL) {
user->input.session_id =
mail_storage_service_generate_session_id(user_pool);
}
user->user_info = user_info;
user->flags = flags;
user->set_parser = settings_parser_dup(set_parser, user_pool);
if (!settings_parser_check(user->set_parser, user_pool, &error))
i_panic("settings_parser_check() failed: %s", error);
sets = master_service_settings_parser_get_others(master_service,
user->set_parser);
user->user_set = sets[0];
user->gid_source = "mail_gid setting";
user->uid_source = "mail_uid setting";
if ((flags & MAIL_STORAGE_SERVICE_FLAG_DEBUG) != 0)
(void)settings_parse_line(user->set_parser, "mail_debug=yes");
if ((flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) == 0) {
const char *home = getenv("HOME");
if (home != NULL)
set_keyval(ctx, user, "mail_home", home);
}
if (userdb_fields != NULL) {
auth_user_fields_parse(userdb_fields, temp_pool, &reply);
array_sort(&reply.extra_fields, extra_field_key_cmp_p);
if (user_reply_handle(ctx, user, &reply, &error) < 0) {
i_error("Invalid settings in userdb: %s", error);
*error_r = ERRSTR_INVALID_USER_SETTINGS;
ret = -2;
}
}
pool_unref(&temp_pool);
/* load per-user plugins */
if (ret > 0) {
if (mail_storage_service_load_modules(ctx, user_info,
user->user_set,
&error) < 0) {
i_error("%s", error);
*error_r = MAIL_ERRSTR_CRITICAL_MSG;
ret = -2;
}
}
*user_r = user;
return ret;
}
int mail_storage_service_lookup(struct mail_storage_service_ctx *ctx,
const struct mail_storage_service_input *input,
struct mail_storage_service_user **user_r,
const char **error_r)
{
char *old_log_prefix = i_strdup(i_get_failure_prefix());
bool update_log_prefix;
int ret;
if (io_loop_get_current_context(current_ioloop) == NULL) {
/* no user yet. log prefix should be just "imap:" or something
equally unhelpful. we don't know the proper log format yet,
but initialize it to something better until we know it. */
i_set_failure_prefix("%s(%s%s,%s)",
master_service_get_name(ctx->service), input->username,
input->session_id == NULL ? "" :
t_strdup_printf(",%s", input->session_id),
input->remote_ip.family == 0 ? "" :
t_strdup_printf(",%s", net_ip2addr(&input->remote_ip)));
update_log_prefix = TRUE;
} else {
/* we might be here because we're doing a user lookup for a
shared user. the log prefix is likely already usable, so
just append our own without replacing the whole thing. */
i_set_failure_prefix("%suser-lookup(%s)",
old_log_prefix, input->username);
update_log_prefix = FALSE;
}
ret = mail_storage_service_lookup_real(ctx, input, update_log_prefix,
user_r, error_r);
i_set_failure_prefix("%s", old_log_prefix);
i_free(old_log_prefix);
return ret;
}
void mail_storage_service_save_userdb_fields(struct mail_storage_service_ctx *ctx,
pool_t pool, const char *const **userdb_fields_r)
{
i_assert(pool != NULL);
i_assert(userdb_fields_r != NULL);
ctx->userdb_next_pool = pool;
ctx->userdb_next_fieldsp = userdb_fields_r;
*userdb_fields_r = NULL;
}
static int
mail_storage_service_next_real(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
struct mail_user **mail_user_r)
{
struct mail_storage_service_privileges priv;
const char *error;
unsigned int len;
bool disallow_root =
(user->flags & MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT) != 0;
bool temp_priv_drop =
(user->flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0;
bool use_chroot;
if (service_parse_privileges(ctx, user, &priv, &error) < 0) {
i_error("%s", error);
return -2;
}
if (*priv.home != '/' && *priv.home != '\0') {
i_error("Relative home directory paths not supported: %s",
priv.home);
return -2;
}
/* we can't chroot if we want to switch between users. there's
not much point either (from security point of view). but if we're
already chrooted, we'll just have to continue and hope that the
current chroot is the same as the wanted chroot */
use_chroot = !temp_priv_drop ||
restrict_access_get_current_chroot() != NULL;
len = strlen(priv.chroot);
if (len > 2 && strcmp(priv.chroot + len - 2, "/.") == 0 &&
strncmp(priv.home, priv.chroot, len - 2) == 0) {
/* mail_chroot = /chroot/. means that the home dir already
contains the chroot dir. remove it from home. */
if (use_chroot) {
priv.home += len - 2;
if (*priv.home == '\0')
priv.home = "/";
priv.chroot = t_strndup(priv.chroot, len - 2);
set_keyval(ctx, user, "mail_home", priv.home);
set_keyval(ctx, user, "mail_chroot", priv.chroot);
}
} else if (len > 0 && !use_chroot) {
/* we're not going to chroot. fix home directory so we can
access it. */
if (*priv.home == '\0' || strcmp(priv.home, "/") == 0)
priv.home = priv.chroot;
else
priv.home = t_strconcat(priv.chroot, priv.home, NULL);
priv.chroot = "";
set_keyval(ctx, user, "mail_home", priv.home);
}
if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) == 0)
mail_storage_service_init_log(ctx, user, &priv);
if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_RESTRICT_ACCESS) == 0) {
if (service_drop_privileges(user, &priv,
disallow_root, temp_priv_drop,
FALSE, &error) < 0) {
i_error("Couldn't drop privileges: %s", error);
return -1;
}
if (!temp_priv_drop ||
(user->flags & MAIL_STORAGE_SERVICE_FLAG_ENABLE_CORE_DUMPS) != 0)
restrict_access_allow_coredumps(TRUE);
}
/* privileges are dropped. initialize plugins that haven't been
initialized yet. */
module_dir_init(mail_storage_service_modules);
if (mail_storage_service_init_post(ctx, user, &priv,
mail_user_r, &error) < 0) {
i_error("User initialization failed: %s", error);
return -2;
}
return 0;
}
int mail_storage_service_next(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user,
struct mail_user **mail_user_r)
{
char *old_log_prefix = i_strdup(i_get_failure_prefix());
int ret;
mail_storage_service_set_log_prefix(ctx, user->user_set, user,
&user->input, NULL);
i_set_failure_prefix("%s", old_log_prefix);
ret = mail_storage_service_next_real(ctx, user, mail_user_r);
if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) != 0)
i_set_failure_prefix("%s", old_log_prefix);
i_free(old_log_prefix);
return ret;
}
void mail_storage_service_restrict_setenv(struct mail_storage_service_ctx *ctx,
struct mail_storage_service_user *user)
{
struct mail_storage_service_privileges priv;
const char *error;
if (service_parse_privileges(ctx, user, &priv, &error) < 0)
i_fatal("user %s: %s", user->input.username, error);
if (service_drop_privileges(user, &priv,
FALSE, FALSE, TRUE, &error) < 0)
i_fatal("user %s: %s", user->input.username, error);
}
int mail_storage_service_lookup_next(struct mail_storage_service_ctx *ctx,
const struct mail_storage_service_input *input,
struct mail_storage_service_user **user_r,
struct mail_user **mail_user_r,
const char **error_r)
{
struct mail_storage_service_user *user;
int ret;
ret = mail_storage_service_lookup(ctx, input, &user, error_r);
if (ret <= 0)
return ret;
ret = mail_storage_service_next(ctx, user, mail_user_r);
if (ret < 0) {
mail_storage_service_user_free(&user);
*error_r = ret == -2 ? ERRSTR_INVALID_USER_SETTINGS :
MAIL_ERRSTR_CRITICAL_MSG;
return ret;
}
*user_r = user;
return 1;
}
void mail_storage_service_user_free(struct mail_storage_service_user **_user)
{
struct mail_storage_service_user *user = *_user;
*_user = NULL;
if (user->ioloop_ctx != NULL) {
io_loop_context_remove_callbacks(user->ioloop_ctx,
mail_storage_service_io_activate_user,
mail_storage_service_io_deactivate_user, user);
if (io_loop_get_current_context(current_ioloop) == user->ioloop_ctx)
mail_storage_service_io_deactivate_user(user);
io_loop_context_unref(&user->ioloop_ctx);
}
settings_parser_deinit(&user->set_parser);
pool_unref(&user->pool);
}
void mail_storage_service_init_settings(struct mail_storage_service_ctx *ctx,
const struct mail_storage_service_input *input)
{
const struct setting_parser_info *user_info;
const struct mail_user_settings *user_set;
const struct setting_parser_context *set_parser;
const char *error;
pool_t temp_pool;
void **sets;
if (ctx->conn != NULL)
return;
temp_pool = pool_alloconly_create("service all settings", 4096);
if (mail_storage_service_read_settings(ctx, input, temp_pool,
&user_info, &set_parser,
&error) < 0)
i_fatal("%s", error);
sets = master_service_settings_parser_get_others(master_service,
set_parser);
user_set = sets[0];
mail_storage_service_first_init(ctx, user_info, user_set);
pool_unref(&temp_pool);
}
static int
mail_storage_service_all_iter_deinit(struct mail_storage_service_ctx *ctx)
{
int ret = 0;
if (ctx->auth_list != NULL) {
ret = auth_master_user_list_deinit(&ctx->auth_list);
auth_master_deinit(&ctx->iter_conn);
}
return ret;
}
void mail_storage_service_all_init(struct mail_storage_service_ctx *ctx)
{
enum auth_master_flags flags = 0;
(void)mail_storage_service_all_iter_deinit(ctx);
mail_storage_service_init_settings(ctx, NULL);
/* create a new connection, because the iteration might take a while
and we might want to do USER lookups during it, which don't mix
well in the same connection. */
if (ctx->debug)
flags |= AUTH_MASTER_FLAG_DEBUG;
ctx->iter_conn = auth_master_init(auth_master_get_socket_path(ctx->conn),
flags);
ctx->auth_list = auth_master_user_list_init(ctx->iter_conn, "", NULL);
}
int mail_storage_service_all_next(struct mail_storage_service_ctx *ctx,
const char **username_r)
{
i_assert((ctx->flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) != 0);
*username_r = auth_master_user_list_next(ctx->auth_list);
if (*username_r != NULL)
return 1;
return mail_storage_service_all_iter_deinit(ctx);
}
void mail_storage_service_deinit(struct mail_storage_service_ctx **_ctx)
{
struct mail_storage_service_ctx *ctx = *_ctx;
*_ctx = NULL;
(void)mail_storage_service_all_iter_deinit(ctx);
if (ctx->conn != NULL) {
if (mail_user_auth_master_conn == ctx->conn)
mail_user_auth_master_conn = NULL;
auth_master_deinit(&ctx->conn);
}
if (ctx->set_cache != NULL)
master_service_settings_cache_deinit(&ctx->set_cache);
pool_unref(&ctx->pool);
module_dir_unload(&mail_storage_service_modules);
mail_storage_deinit();
dict_drivers_unregister_builtin();
}
void **mail_storage_service_user_get_set(struct mail_storage_service_user *user)
{
return master_service_settings_parser_get_others(master_service,
user->set_parser);
}
const struct mail_storage_settings *
mail_storage_service_user_get_mail_set(struct mail_storage_service_user *user)
{
return mail_user_set_get_driver_settings(
user->user_info, user->user_set,
MAIL_STORAGE_SET_DRIVER_NAME);
}
const struct mail_storage_service_input *
mail_storage_service_user_get_input(struct mail_storage_service_user *user)
{
return &user->input;
}
struct setting_parser_context *
mail_storage_service_user_get_settings_parser(struct mail_storage_service_user *user)
{
return user->set_parser;
}
struct mail_storage_service_ctx *
mail_storage_service_user_get_service_ctx(struct mail_storage_service_user *user)
{
return user->service_ctx;
}
void *mail_storage_service_get_settings(struct master_service *service)
{
void **sets, *set;
T_BEGIN {
sets = master_service_settings_get_others(service);
set = sets[1];
} T_END;
return set;
}