8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "lib.h"

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen#include "ioloop.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "array.h"

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen#include "hostpid.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "module-dir.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "restrict-access.h"

abf015c9682f0f723db87a7c97bc284ef814818fTimo Sirainen#include "eacces-error.h"

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen#include "ipwd.h"

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen#include "str.h"

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen#include "var-expand.h"

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen#include "dict.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "settings-parser.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "auth-master.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "master-service-private.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "master-service-settings.h"

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen#include "master-service-settings-cache.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "mail-user.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "mail-namespace.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "mail-storage.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include "mail-storage-service.h"

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include <stdlib.h>

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen#include <sys/stat.h>

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen#ifdef HAVE_SYS_TIME_H

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen# include <sys/time.h>

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen#endif

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen#ifdef HAVE_SYS_RESOURCE_H

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen# include <sys/resource.h>

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen#endif

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen#define MAX_TIME_BACKWARDS_SLEEP 5

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen#define MAX_NOWARN_FORWARD_SECS 10

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen#define ERRSTR_INVALID_USER_SETTINGS \

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen "Invalid user settings. Refer to server log for more information."

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenstruct mail_storage_service_privileges {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen uid_t uid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen gid_t gid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *uid_source, *gid_source;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *home;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *chroot;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen};

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenstruct mail_storage_service_ctx {

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen pool_t pool;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen struct master_service *service;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen const char *default_log_prefix;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

fa2433aebcf3fccfa30ca9eed9b1a9166cf92ee2Timo Sirainen struct auth_master_connection *conn;

fa2433aebcf3fccfa30ca9eed9b1a9166cf92ee2Timo Sirainen struct auth_master_user_list_ctx *auth_list;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const struct setting_parser_info **set_roots;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen enum mail_storage_service_flags flags;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen const char *set_cache_module, *set_cache_service;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen struct master_service_settings_cache *set_cache;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen pool_t userdb_next_pool;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen const char *const **userdb_next_fieldsp;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen unsigned int debug:1;

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen unsigned int log_initialized:1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen};

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenstruct mail_storage_service_user {

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen pool_t pool;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen struct mail_storage_service_ctx *service_ctx;

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen struct mail_storage_service_input input;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen enum mail_storage_service_flags flags;

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen struct ioloop_context *ioloop_ctx;

ab90f702ceedb7ba445a9a592be0b213b27cbafaStephan Bosch const char *log_prefix, *auth_token;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen const char *system_groups_user, *uid_source, *gid_source;

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen const struct mail_user_settings *user_set;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen const struct setting_parser_info *user_info;

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen struct setting_parser_context *set_parser;

e438c85a6b0f77889e25913bbbba808d6078282dStephan Bosch

e438c85a6b0f77889e25913bbbba808d6078282dStephan Bosch unsigned int anonymous:1;

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen};

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen

38f227941bcf673e0e523c1ac7267bca9cbcd2c4Timo Sirainenstruct module *mail_storage_service_modules = NULL;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainenstatic bool

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainenmail_user_set_get_mail_debug(const struct setting_parser_info *user_info,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen const struct mail_user_settings *user_set)

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen{

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen const struct mail_storage_settings *mail_set;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen mail_set = mail_user_set_get_driver_settings(user_info, user_set,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen MAIL_STORAGE_SET_DRIVER_NAME);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen return mail_set->mail_debug;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen}

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainenstatic void set_keyval(struct mail_storage_service_ctx *ctx,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen struct mail_storage_service_user *user,

2eb2cf8eeb763bd5ca9b6848dce32f0303e88ec1Timo Sirainen const char *key, const char *value)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen struct setting_parser_context *set_parser = user->set_parser;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const char *str;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (master_service_set_has_config_override(ctx->service, key)) {

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen /* this setting was already overridden with -o parameter */

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (mail_user_set_get_mail_debug(user->user_info,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen user->user_set)) {

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen i_debug("Ignoring overridden (-o) userdb setting: %s",

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen key);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen return;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen str = t_strconcat(key, "=", value, NULL);

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen if (settings_parse_line(set_parser, str) < 0) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen i_fatal("Invalid userdb input '%s': %s", str,

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen settings_parser_get_error(set_parser));

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainenstatic int set_line(struct mail_storage_service_ctx *ctx,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen struct mail_storage_service_user *user,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen const char *line)

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen{

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen struct setting_parser_context *set_parser = user->set_parser;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen bool mail_debug;

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen const char *key, *orig_key, *append_value = NULL;

7af5f78e9fee296e42430d94ef252ff0333d8024Timo Sirainen unsigned int len;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen int ret;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen mail_debug = mail_user_set_get_mail_debug(user->user_info,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen user->user_set);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (strchr(line, '=') == NULL)

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen line = t_strconcat(line, "=yes", NULL);

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen orig_key = key = t_strcut(line, '=');

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen

7af5f78e9fee296e42430d94ef252ff0333d8024Timo Sirainen len = strlen(key);

7af5f78e9fee296e42430d94ef252ff0333d8024Timo Sirainen if (len > 0 && key[len-1] == '+') {

7af5f78e9fee296e42430d94ef252ff0333d8024Timo Sirainen /* key+=value */

7af5f78e9fee296e42430d94ef252ff0333d8024Timo Sirainen append_value = line + len + 1;

7af5f78e9fee296e42430d94ef252ff0333d8024Timo Sirainen key = t_strndup(key, len-1);

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (!settings_parse_is_valid_key(set_parser, key)) {

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen /* assume it's a plugin setting */

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen key = t_strconcat("plugin/", key, NULL);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen line = t_strconcat("plugin/", line, NULL);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (master_service_set_has_config_override(ctx->service, key)) {

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen /* this setting was already overridden with -o parameter */

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (mail_debug) {

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen i_debug("Ignoring overridden (-o) userdb setting: %s",

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen key);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen return 1;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen if (append_value != NULL) {

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen const void *value;

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen enum setting_type type;

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen value = settings_parse_get_value(set_parser, key, &type);

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen if (type == SET_STR) {

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen const char *const *strp = value;

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen line = t_strdup_printf("%s=%s%s",

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen key, *strp, append_value);

1f5597beba229acd914e30a6da3c0e62d83b6e8fTimo Sirainen } else {

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen i_error("Ignoring %s userdb setting. "

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen "'+' can only be used for strings.", orig_key);

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen }

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen }

47569a4b2b4d3cc55e786177798c922c3c44233dTimo Sirainen

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen ret = settings_parse_line(set_parser, line);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (mail_debug && ret >= 0) {

417642ddac19708bea6dd2c2bbeaf6a9578d521bTimo Sirainen if (strstr(key, "pass") != NULL) {

417642ddac19708bea6dd2c2bbeaf6a9578d521bTimo Sirainen /* possibly a password field (e.g. imapc_password).

417642ddac19708bea6dd2c2bbeaf6a9578d521bTimo Sirainen line = t_strconcat(key, "=<hidden>", NULL);

417642ddac19708bea6dd2c2bbeaf6a9578d521bTimo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen i_debug(ret == 0 ?

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen "Unknown userdb setting: %s" :

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen "Added userdb setting: %s", line);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen }

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen return ret;

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen}

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainenstatic bool validate_chroot(const struct mail_user_settings *user_set,

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const char *dir)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const char *const *chroot_dirs;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (*dir == '\0')

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return FALSE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (*user_set->valid_chroot_dirs == '\0')

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return FALSE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen chroot_dirs = t_strsplit(user_set->valid_chroot_dirs, ":");

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen while (*chroot_dirs != NULL) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (**chroot_dirs != '\0' &&

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen strncmp(dir, *chroot_dirs, strlen(*chroot_dirs)) == 0)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return TRUE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen chroot_dirs++;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return FALSE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainenstatic int

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainenuser_reply_handle(struct mail_storage_service_ctx *ctx,

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen struct mail_storage_service_user *user,

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const struct auth_user_reply *reply,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen const char *home = reply->home;

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen const char *chroot = reply->chroot;

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen const char *const *str, *line, *p;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen unsigned int i, count;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen int ret = 0;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (reply->uid != (uid_t)-1) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (reply->uid == 0) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen *error_r = "userdb returned 0 as uid";

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return -1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen user->uid_source = "userdb lookup";

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen set_keyval(ctx, user, "mail_uid", dec2str(reply->uid));

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen if (reply->gid != (uid_t)-1) {

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen user->gid_source = "userdb lookup";

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen set_keyval(ctx, user, "mail_gid", dec2str(reply->gid));

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen if (home != NULL && chroot == NULL &&

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen *user->user_set->valid_chroot_dirs != '\0' &&

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen (p = strstr(home, "/./")) != NULL) {

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen /* wu-ftpd like <chroot>/./<home> - check only if there's even

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen chroot = t_strdup_until(home, p);

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen home = p + 2;

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen }

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen if (home != NULL)

e30b9e07f9657c35ca09ac36d57d60cbe2ebbc66Timo Sirainen set_keyval(ctx, user, "mail_home", home);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen if (chroot != NULL) {

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen if (!validate_chroot(user->user_set, chroot)) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen *error_r = t_strdup_printf(

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen "userdb returned invalid chroot directory: %s "

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen "(see valid_chroot_dirs setting)", chroot);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return -1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

002179a890bf4f1942cad6463787719eaa9fd6c0Timo Sirainen set_keyval(ctx, user, "mail_chroot", chroot);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

e438c85a6b0f77889e25913bbbba808d6078282dStephan Bosch user->anonymous = reply->anonymous;

e438c85a6b0f77889e25913bbbba808d6078282dStephan Bosch

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen str = array_get(&reply->extra_fields, &count);

4c261fb48e6e36570a0841aa51ca483024d6a0a6Timo Sirainen for (i = 0; i < count; i++) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen line = str[i];

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (strncmp(line, "system_groups_user=", 19) == 0) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen user->system_groups_user =

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen p_strdup(user->pool, line + 19);

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen } else if (strncmp(line, "nice=", 5) == 0) {

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen#ifdef HAVE_SETPRIORITY

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen int n = atoi(line + 5);

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen if (n != 0) {

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen if (setpriority(PRIO_PROCESS, 0, n) < 0)

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen i_error("setpriority(%d) failed: %m", n);

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen }

542e28b384a6b26695f3e8de38fd5727d06f3333Timo Sirainen#endif

ab90f702ceedb7ba445a9a592be0b213b27cbafaStephan Bosch } else if (strncmp(line, "auth_token=", 11) == 0) {

ab90f702ceedb7ba445a9a592be0b213b27cbafaStephan Bosch user->auth_token = p_strdup(user->pool, line+11);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen } else T_BEGIN {

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen ret = set_line(ctx, user, line);

18c209a06941ef583b08b173dadfbe4571995bf9Timo Sirainen } T_END;

4c261fb48e6e36570a0841aa51ca483024d6a0a6Timo Sirainen if (ret < 0)

4c261fb48e6e36570a0841aa51ca483024d6a0a6Timo Sirainen break;

18c209a06941ef583b08b173dadfbe4571995bf9Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (ret < 0) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen *error_r = t_strdup_printf("Invalid userdb input '%s': %s",

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen str[i], settings_parser_get_error(user->set_parser));

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return ret;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainenstatic int

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenservice_auth_userdb_lookup(struct mail_storage_service_ctx *ctx,

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen const struct mail_storage_service_input *input,

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen pool_t pool, const char **user,

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen const char *const **fields_r,

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen struct auth_user_info info;

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen const char *new_username;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen int ret;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen memset(&info, 0, sizeof(info));

b9dc21a94401638c00e40b695998875e1563ce77Timo Sirainen info.service = input->service != NULL ? input->service :

b9dc21a94401638c00e40b695998875e1563ce77Timo Sirainen ctx->service->name;

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen info.local_ip = input->local_ip;

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen info.remote_ip = input->remote_ip;

27ca6cb0548c6478005c77d04be641356ec7d83cTimo Sirainen info.local_port = input->local_port;

27ca6cb0548c6478005c77d04be641356ec7d83cTimo Sirainen info.remote_port = input->remote_port;

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen ret = auth_master_user_lookup(ctx->conn, *user, &info, pool,

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen &new_username, fields_r);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (ret > 0) {

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen if (strcmp(*user, new_username) != 0) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (ctx->debug)

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen i_debug("changed username to %s", new_username);

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen *user = t_strdup(new_username);

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen }

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen *user = new_username;

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen } else if (ret == 0)

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = "Unknown user";

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen else if (**fields_r != NULL) {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = t_strdup(**fields_r);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen ret = -2;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen } else {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = MAIL_ERRSTR_CRITICAL_MSG;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return ret;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainenstatic bool parse_uid(const char *str, uid_t *uid_r, const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen struct passwd pw;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

9261dbf0675204898c6557591c7aa376e23a52b2Timo Sirainen if (str_to_uid(str, uid_r) == 0)

9261dbf0675204898c6557591c7aa376e23a52b2Timo Sirainen return TRUE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen switch (i_getpwnam(str, &pw)) {

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen case -1:

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen *error_r = t_strdup_printf("getpwnam(%s) failed: %m", str);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return FALSE;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen case 0:

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen *error_r = t_strconcat("Unknown UNIX UID user: ", str, NULL);

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen return FALSE;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen default:

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen *uid_r = pw.pw_uid;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen return TRUE;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainenstatic bool parse_gid(const char *str, gid_t *gid_r, const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen struct group gr;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

9261dbf0675204898c6557591c7aa376e23a52b2Timo Sirainen if (str_to_gid(str, gid_r) == 0)

9261dbf0675204898c6557591c7aa376e23a52b2Timo Sirainen return TRUE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen switch (i_getgrnam(str, &gr)) {

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen case -1:

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen *error_r = t_strdup_printf("getgrnam(%s) failed: %m", str);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return FALSE;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen case 0:

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen *error_r = t_strconcat("Unknown UNIX GID group: ", str, NULL);

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen return FALSE;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen default:

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen *gid_r = gr.gr_gid;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen return TRUE;

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenstatic const struct var_expand_table *

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenget_var_expand_table(struct master_service *service,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_input *input,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges *priv)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen{

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen static struct var_expand_table static_tab[] = {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'u', NULL, "user" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'n', NULL, "username" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'd', NULL, "domain" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 's', NULL, "service" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'l', NULL, "lip" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'r', NULL, "rip" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'p', NULL, "pid" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { 'i', NULL, "uid" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { '\0', NULL, "gid" },

b55f914c0ade77252cfd798ea8eb9a84bda56315Timo Sirainen { '\0', NULL, "session" },

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen { '\0', NULL, NULL }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen };

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct var_expand_table *tab;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab = t_malloc(sizeof(static_tab));

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen memcpy(tab, static_tab, sizeof(static_tab));

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[0].value = input->username;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[1].value = t_strcut(input->username, '@');

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[2].value = strchr(input->username, '@');

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (tab[2].value != NULL) tab[2].value++;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[3].value = service->name;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[4].value = net_ip2addr(&input->local_ip);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[5].value = net_ip2addr(&input->remote_ip);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[6].value = my_pid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[7].value = dec2str(priv->uid == (uid_t)-1 ? geteuid() : priv->uid);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen tab[8].value = dec2str(priv->gid == (gid_t)-1 ? getegid() : priv->gid);

b55f914c0ade77252cfd798ea8eb9a84bda56315Timo Sirainen tab[9].value = input->session_id;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen return tab;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen}

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainenconst struct var_expand_table *

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainenmail_storage_service_get_var_expand_table(struct mail_storage_service_ctx *ctx,

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen struct mail_storage_service_input *input)

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen{

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen struct mail_storage_service_privileges priv;

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen memset(&priv, 0, sizeof(priv));

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen priv.uid = (uid_t)-1;

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen priv.gid = (gid_t)-1;

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen return get_var_expand_table(ctx->service, input, &priv);

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen}

19cadcc25c26af7afea1355d78e20ad64eaad263Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenstatic const char *

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenuser_expand_varstr(struct master_service *service,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_input *input,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges *priv,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *str)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen{

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen string_t *ret;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (*str == SETTING_STRVAR_EXPANDED[0])

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen return str + 1;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen i_assert(*str == SETTING_STRVAR_UNEXPANDED[0]);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen ret = t_str_new(256);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen var_expand(ret, str + 1, get_var_expand_table(service, input, priv));

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen return str_c(ret);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen}

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainenstatic int

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenservice_parse_privileges(struct mail_storage_service_ctx *ctx,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_user *user,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges *priv_r,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const struct mail_user_settings *set = user->user_set;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen uid_t uid = (uid_t)-1;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen gid_t gid = (gid_t)-1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen memset(priv_r, 0, sizeof(*priv_r));

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (*set->mail_uid != '\0') {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (!parse_uid(set->mail_uid, &uid, error_r)) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen *error_r = t_strdup_printf("%s (from %s)", *error_r,

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen user->uid_source);

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (uid < (uid_t)set->first_valid_uid ||

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen (set->last_valid_uid != 0 &&

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen uid > (uid_t)set->last_valid_uid)) {

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen *error_r = t_strdup_printf(

216cd45a5f47c9bd46fe67c1b3bd6b1a42f6e39cTimo Sirainen "Mail access for users with UID %s not permitted "

216cd45a5f47c9bd46fe67c1b3bd6b1a42f6e39cTimo Sirainen "(see first_valid_uid in config file, uid from %s).",

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen dec2str(uid), user->uid_source);

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv_r->uid = uid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv_r->uid_source = user->uid_source;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (*set->mail_gid != '\0') {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (!parse_gid(set->mail_gid, &gid, error_r)) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen *error_r = t_strdup_printf("%s (from %s)", *error_r,

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen user->gid_source);

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (gid < (gid_t)set->first_valid_gid ||

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen (set->last_valid_gid != 0 &&

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen gid > (gid_t)set->last_valid_gid)) {

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen *error_r = t_strdup_printf(

216cd45a5f47c9bd46fe67c1b3bd6b1a42f6e39cTimo Sirainen "Mail access for users with GID %s not permitted "

216cd45a5f47c9bd46fe67c1b3bd6b1a42f6e39cTimo Sirainen "(see first_valid_gid in config file, gid from %s).",

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen dec2str(gid), user->gid_source);

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv_r->gid = gid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv_r->gid_source = user->gid_source;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen /* variable strings are expanded in mail_user_init(),

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv_r->home = user_expand_varstr(ctx->service, &user->input, priv_r,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen user->user_set->mail_home);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv_r->chroot = user_expand_varstr(ctx->service, &user->input, priv_r,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen user->user_set->mail_chroot);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen return 0;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen}

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenstatic int

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainenservice_drop_privileges(struct mail_storage_service_user *user,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges *priv,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen bool disallow_root, bool keep_setuid_root,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen bool setenv_only, const char **error_r)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen{

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const struct mail_user_settings *set = user->user_set;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct restrict_access_settings rset;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen uid_t current_euid, setuid_uid = 0;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *cur_chroot, *error;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen current_euid = geteuid();

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen restrict_access_init(&rset);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen restrict_access_get_env(&rset);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (priv->uid != (uid_t)-1) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen rset.uid = priv->uid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen rset.uid_source = priv->uid_source;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen } else if (rset.uid == (uid_t)-1 &&

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen disallow_root && current_euid == 0) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen *error_r = "User is missing UID (see mail_uid setting)";

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen return -1;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen }

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (priv->gid != (gid_t)-1) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen rset.gid = priv->gid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen rset.gid_source = priv->gid_source;

7f472e15b5f19a3536634863950c80a88079da23Timo Sirainen } else if (rset.gid == (gid_t)-1 && disallow_root &&

7f472e15b5f19a3536634863950c80a88079da23Timo Sirainen set->first_valid_gid > 0 && getegid() == 0) {

0139fcb57a88f6ed27a1bb4a1bd537b04fd2b5d6Timo Sirainen *error_r = "User is missing GID (see mail_gid setting)";

0139fcb57a88f6ed27a1bb4a1bd537b04fd2b5d6Timo Sirainen return -1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (*set->mail_privileged_group != '\0') {

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen if (!parse_gid(set->mail_privileged_group, &rset.privileged_gid,

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen &error)) {

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen *error_r = t_strdup_printf(

70afae43cc78ea6ecca83f6c587072c442a15ec1Timo Sirainen "%s (in mail_privileged_group setting)", error);

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

9aceb071780a949f4e8bf41d3cf80735d9ac7fdfTimo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

1503ac7619d97193d6690292b5f9523552c5d6ceTimo Sirainen if (*set->mail_access_groups != '\0') {

1503ac7619d97193d6690292b5f9523552c5d6ceTimo Sirainen rset.extra_groups = t_strconcat(set->mail_access_groups, ",",

1503ac7619d97193d6690292b5f9523552c5d6ceTimo Sirainen rset.extra_groups, NULL);

1503ac7619d97193d6690292b5f9523552c5d6ceTimo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen rset.first_valid_gid = set->first_valid_gid;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen rset.last_valid_gid = set->last_valid_gid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen rset.chroot_dir = *priv->chroot == '\0' ? NULL : priv->chroot;

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen rset.system_groups_user = user->system_groups_user;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen cur_chroot = restrict_access_get_current_chroot();

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen if (cur_chroot != NULL) {

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen /* we're already chrooted. make sure the chroots are equal. */

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen if (rset.chroot_dir == NULL) {

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen *error_r = "Process is already chrooted, "

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen "can't un-chroot for this user";

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen return -1;

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen }

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen if (strcmp(rset.chroot_dir, cur_chroot) != 0) {

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen *error_r = t_strdup_printf(

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen "Process is already chrooted to %s, "

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen "can't chroot to %s", cur_chroot, priv->chroot);

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen return -1;

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen }

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen /* chrooting to same directory where we're already chrooted */

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen rset.chroot_dir = NULL;

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen }

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (disallow_root &&

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen (rset.uid == 0 || (rset.uid == (uid_t)-1 && current_euid == 0))) {

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen *error_r = "Mail access not allowed for root";

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen if (keep_setuid_root) {

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen if (current_euid != rset.uid) {

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen if (current_euid != 0) {

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen /* we're changing the UID,

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen if (seteuid(0) < 0)

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen i_fatal("seteuid(0) failed: %m");

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen }

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen setuid_uid = rset.uid;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen rset.uid = (uid_t)-1;

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen disallow_root = FALSE;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen if (!setenv_only) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen restrict_access(&rset, *priv->home == '\0' ? NULL : priv->home,

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen disallow_root);

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen } else {

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen restrict_access_set_env(&rset);

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen }

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen if (setuid_uid != 0 && !setenv_only) {

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen if (seteuid(setuid_uid) < 0)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen i_fatal("seteuid(%s) failed: %m", dec2str(setuid_uid));

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return 0;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainenstatic int

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenmail_storage_service_init_post(struct mail_storage_service_ctx *ctx,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen struct mail_storage_service_user *user,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges *priv,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_user **mail_user_r,

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen const struct mail_storage_settings *mail_set;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *home = priv->home;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen struct mail_user *mail_user;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen mail_user = mail_user_alloc(user->input.username, user->user_info,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen user->user_set);

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen mail_user_set_home(mail_user, *home == '\0' ? NULL : home);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen mail_user_set_vars(mail_user, ctx->service->name,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen &user->input.local_ip, &user->input.remote_ip);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen mail_user->uid = priv->uid == (uid_t)-1 ? geteuid() : priv->uid;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen mail_user->gid = priv->gid == (gid_t)-1 ? getegid() : priv->gid;

e438c85a6b0f77889e25913bbbba808d6078282dStephan Bosch mail_user->anonymous = user->anonymous;

ab90f702ceedb7ba445a9a592be0b213b27cbafaStephan Bosch mail_user->auth_token = p_strdup(mail_user->pool, user->auth_token);

e438c85a6b0f77889e25913bbbba808d6078282dStephan Bosch

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen mail_set = mail_user_set_get_storage_set(mail_user);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen if (mail_set->mail_debug) {

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen string_t *str = t_str_new(64);

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen str_printfa(str, "Effective uid=%s, gid=%s, home=%s",

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen dec2str(geteuid()), dec2str(getegid()), home);

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen if (*priv->chroot != '\0')

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen str_printfa(str, ", chroot=%s", priv->chroot);

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen i_debug("%s", str_c(str));

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen }

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0 &&

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (user->flags & MAIL_STORAGE_SERVICE_FLAG_ENABLE_CORE_DUMPS) == 0) {

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen /* we don't want to write core files to any users' home

02a6291366caff79793db35d479e2a062bec2af4Timo Sirainen } else if (*home != '\0' &&

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_CHDIR) == 0) {

47e9fdee55c2074425cf0316f4f64fbbb790301cTimo Sirainen /* If possible chdir to home directory, so that core file

573085b4b25b0bbae8d27969df2c91702eefa23eTimo Sirainen if (chdir(home) < 0) {

0ee3fdb5e94ae6f34cb873ca3c9858342621e55fTimo Sirainen if (errno == EACCES) {

0ee3fdb5e94ae6f34cb873ca3c9858342621e55fTimo Sirainen i_error("%s", eacces_error_get("chdir",

0ee3fdb5e94ae6f34cb873ca3c9858342621e55fTimo Sirainen t_strconcat(home, "/", NULL)));

0ee3fdb5e94ae6f34cb873ca3c9858342621e55fTimo Sirainen } if (errno != ENOENT)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen i_error("chdir(%s) failed: %m", home);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen else if (mail_set->mail_debug)

e5acc283bf030b0b5c79ca4e52d315c516a299faPascal Volk i_debug("Home dir not found: %s", home);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

1b04762685272a53643ac2179939537a44c7c044Timo Sirainen if (mail_user_init(mail_user, error_r) < 0) {

1b04762685272a53643ac2179939537a44c7c044Timo Sirainen mail_user_unref(&mail_user);

1b04762685272a53643ac2179939537a44c7c044Timo Sirainen return -1;

1b04762685272a53643ac2179939537a44c7c044Timo Sirainen }

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_NAMESPACES) == 0) {

303e375b7e76278f4ec541f49af0476d3e4ee710Timo Sirainen if (mail_namespaces_init(mail_user, error_r) < 0) {

303e375b7e76278f4ec541f49af0476d3e4ee710Timo Sirainen mail_user_unref(&mail_user);

303e375b7e76278f4ec541f49af0476d3e4ee710Timo Sirainen return -1;

303e375b7e76278f4ec541f49af0476d3e4ee710Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen *mail_user_r = mail_user;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen return 0;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

1388b590dbd85245b591346f860bc1319953318aTimo Sirainenstatic void mail_storage_service_io_activate(void *context)

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen{

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen struct mail_storage_service_user *user = context;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

ca4526e3b5fbf5ea3dd477a2098522a44c9ac52cTimo Sirainen i_set_failure_prefix("%s", user->log_prefix);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen}

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

1388b590dbd85245b591346f860bc1319953318aTimo Sirainenstatic void mail_storage_service_io_deactivate(void *context)

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen{

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen struct mail_storage_service_user *user = context;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

ca4526e3b5fbf5ea3dd477a2098522a44c9ac52cTimo Sirainen i_set_failure_prefix("%s", user->service_ctx->default_log_prefix);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen}

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainenstatic void

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainenmail_storage_service_init_log(struct mail_storage_service_ctx *ctx,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_user *user,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges *priv)

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen{

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen ctx->log_initialized = TRUE;

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen T_BEGIN {

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen string_t *str;

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen str = t_str_new(256);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen var_expand(str, user->user_set->mail_log_prefix,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen get_var_expand_table(ctx->service, &user->input, priv));

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen user->log_prefix = p_strdup(user->pool, str_c(str));

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen } T_END;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen master_service_init_log(ctx->service, user->log_prefix);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

8abe071cb14a622b9d84b00a9269f96d01a576f6Timo Sirainen if (master_service_get_client_limit(master_service) == 1)

8abe071cb14a622b9d84b00a9269f96d01a576f6Timo Sirainen i_set_failure_send_prefix(user->log_prefix);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen user->ioloop_ctx = io_loop_context_new(current_ioloop);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen io_loop_context_add_callbacks(user->ioloop_ctx,

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen mail_storage_service_io_activate,

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen mail_storage_service_io_deactivate,

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen user);

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen}

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainenstatic void mail_storage_service_time_moved(time_t old_time, time_t new_time)

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen{

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen long diff = new_time - old_time;

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen if (diff > 0) {

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen if (diff > MAX_NOWARN_FORWARD_SECS)

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen i_warning("Time jumped forwards %ld seconds", diff);

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen return;

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen }

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen diff = -diff;

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen if (diff > MAX_TIME_BACKWARDS_SLEEP) {

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen i_fatal("Time just moved backwards by %ld seconds. "

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen "This might cause a lot of problems, "

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen "so I'll just kill myself now. "

0992011130e9d0a498ca860ddbe4028398a530c5Timo Sirainen "http://wiki2.dovecot.org/TimeMovedBackwards", diff);

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen } else {

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen i_error("Time just moved backwards by %ld seconds. "

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen "I'll sleep now until we're back in present. "

0992011130e9d0a498ca860ddbe4028398a530c5Timo Sirainen "http://wiki2.dovecot.org/TimeMovedBackwards", diff);

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen /* Sleep extra second to make sure usecs also grows. */

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen diff++;

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen while (diff > 0 && sleep(diff) != 0) {

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen /* don't use sleep()'s return value, because

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen diff = old_time - time(NULL) + 1;

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen }

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen }

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen}

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenstruct mail_storage_service_ctx *

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenmail_storage_service_init(struct master_service *service,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const struct setting_parser_info *set_roots[],

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen enum mail_storage_service_flags flags)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_ctx *ctx;

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen const char *version;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen pool_t pool;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen unsigned int count;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen version = master_service_get_version_string(service);

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen if (version != NULL && strcmp(version, PACKAGE_VERSION) != 0) {

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen i_fatal("Version mismatch: libdovecot-storage.so is '%s', "

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen "while the running Dovecot binary is '%s'",

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen PACKAGE_VERSION, version);

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen }

3c932c0a21349f23dd38c50c12b3a24717dfbc28Timo Sirainen

1cb065514fcfe00b684ee274239e3f0390c7fc47Timo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0 &&

1cb065514fcfe00b684ee274239e3f0390c7fc47Timo Sirainen geteuid() != 0) {

1cb065514fcfe00b684ee274239e3f0390c7fc47Timo Sirainen /* service { user } isn't root. the permission drop can't be

1cb065514fcfe00b684ee274239e3f0390c7fc47Timo Sirainen flags &= ~MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP;

1cb065514fcfe00b684ee274239e3f0390c7fc47Timo Sirainen }

1cb065514fcfe00b684ee274239e3f0390c7fc47Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen (void)umask(0077);

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen io_loop_set_time_moved_callback(current_ioloop,

c3a636e4c9ae776e0eed06b6d7ad1ccfb6003afdTimo Sirainen mail_storage_service_time_moved);

f934b271c69c7b3e5e3bca23ff9b3ab6187262c2Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen mail_storage_init();

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen mail_storage_register_all();

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen mailbox_list_register_all();

f38485358ffc04c3466b917770575e29deef24c3Timo Sirainen

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen pool = pool_alloconly_create("mail storage service", 2048);

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen ctx = p_new(pool, struct mail_storage_service_ctx, 1);

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen ctx->pool = pool;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen ctx->service = service;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen ctx->flags = flags;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen /* @UNSAFE */

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (set_roots == NULL)

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen count = 0;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen else

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen for (count = 0; set_roots[count] != NULL; count++) ;

878a83a906e1be6354b563ead096955a22ad5fbeTimo Sirainen ctx->set_roots =

878a83a906e1be6354b563ead096955a22ad5fbeTimo Sirainen p_new(pool, const struct setting_parser_info *, count + 2);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen ctx->set_roots[0] = &mail_user_setting_parser_info;

b879ed8dd4b5850987e6b89a92f794d87c6be7d7Timo Sirainen if (set_roots != NULL) {

b879ed8dd4b5850987e6b89a92f794d87c6be7d7Timo Sirainen memcpy(ctx->set_roots + 1, set_roots,

b879ed8dd4b5850987e6b89a92f794d87c6be7d7Timo Sirainen sizeof(*ctx->set_roots) * count);

b879ed8dd4b5850987e6b89a92f794d87c6be7d7Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen /* do all the global initialization. delay initializing plugins until

705f6fbad395e6f014838e797b7dbcaceafd2f1dTimo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) == 0) {

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen /* note: we may not have read any settings yet, so this logging

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen ctx->default_log_prefix =

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen p_strconcat(pool, service->name, ": ", NULL);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen master_service_init_log(service, ctx->default_log_prefix);

8f5b34c22e4c3bfb35ca13c4744867eb5ddbd3d6Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen dict_drivers_register_builtin();

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return ctx;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenstruct auth_master_connection *

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenmail_storage_service_get_auth_conn(struct mail_storage_service_ctx *ctx)

2eb0402a28bd0422e0170160808c67d6c7274689Timo Sirainen{

97180ea9c26c4de0807daaad21e03c80643b09fdTimo Sirainen i_assert(ctx->conn != NULL);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return ctx->conn;

2eb0402a28bd0422e0170160808c67d6c7274689Timo Sirainen}

2eb0402a28bd0422e0170160808c67d6c7274689Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainenstatic enum mail_storage_service_flags

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainenmail_storage_service_input_get_flags(struct mail_storage_service_ctx *ctx,

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen const struct mail_storage_service_input *input)

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen{

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen enum mail_storage_service_flags flags;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen flags = (ctx->flags & ~input->flags_override_remove) |

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen input->flags_override_add;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if (input->no_userdb_lookup) {

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen /* FIXME: for API backwards compatibility only */

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen flags &= ~MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen }

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen return flags;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen}

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainenint mail_storage_service_read_settings(struct mail_storage_service_ctx *ctx,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen const struct mail_storage_service_input *input,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen pool_t pool,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen const struct setting_parser_info **user_info_r,

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen const struct setting_parser_context **parser_r,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen const char **error_r)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct master_service_settings_input set_input;

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen const struct setting_parser_info *const *roots;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen struct master_service_settings_output set_output;

dbe06905918a415a34c5621b9fdf45be0b9c8e64Timo Sirainen const struct dynamic_settings_parser *dyn_parsers;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen enum mail_storage_service_flags flags;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen unsigned int i;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

8d5c97bf940e43e8ec6e9f1ec8655f3b20edafbeTimo Sirainen flags = input == NULL ? ctx->flags :

8d5c97bf940e43e8ec6e9f1ec8655f3b20edafbeTimo Sirainen mail_storage_service_input_get_flags(ctx, input);

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen memset(&set_input, 0, sizeof(set_input));

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen set_input.roots = ctx->set_roots;

d5eb47a791ec56149fd711cd8e44efc8babeaae5Timo Sirainen set_input.preserve_user = TRUE;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen /* settings reader may exec doveconf, which is going to clear

762e17079d29d9f1838114ff5fec9ceaba8eb6a8Timo Sirainen set_input.preserve_home =

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) == 0;

50349cd047ca9e7c100cbeb70acfe26672649959Timo Sirainen set_input.use_sysexits =

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (flags & MAIL_STORAGE_SERVICE_FLAG_USE_SYSEXITS) != 0;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (input != NULL) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen set_input.module = input->module;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen set_input.service = input->service;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen set_input.username = input->username;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen set_input.local_ip = input->local_ip;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen set_input.remote_ip = input->remote_ip;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen if (ctx->set_cache == NULL) {

674f541b16689c0ed090dac32db94463c5af3977Timo Sirainen ctx->set_cache_module = p_strdup(ctx->pool, set_input.module);

674f541b16689c0ed090dac32db94463c5af3977Timo Sirainen ctx->set_cache_service = p_strdup(ctx->pool, set_input.service);

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen ctx->set_cache = master_service_settings_cache_init(

674f541b16689c0ed090dac32db94463c5af3977Timo Sirainen ctx->service, set_input.module, set_input.service);

faca2afa3576c50caf28e0f009555325d2a49e0bTimo Sirainen } else {

faca2afa3576c50caf28e0f009555325d2a49e0bTimo Sirainen /* already looked up settings at least once.

faca2afa3576c50caf28e0f009555325d2a49e0bTimo Sirainen set_input.never_exec = TRUE;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen }

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen

dbe06905918a415a34c5621b9fdf45be0b9c8e64Timo Sirainen dyn_parsers = mail_storage_get_dynamic_parsers(pool);

674f541b16689c0ed090dac32db94463c5af3977Timo Sirainen if (null_strcmp(set_input.module, ctx->set_cache_module) == 0 &&

674f541b16689c0ed090dac32db94463c5af3977Timo Sirainen null_strcmp(set_input.service, ctx->set_cache_service) == 0) {

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen if (master_service_settings_cache_read(ctx->set_cache,

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen &set_input, dyn_parsers,

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen parser_r, error_r) < 0) {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = t_strdup_printf(

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen "Error reading configuration: %s", *error_r);

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen return -1;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen }

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen } else {

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen settings_parser_dyn_update(pool, &set_input.roots, dyn_parsers);

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen if (master_service_settings_read(ctx->service, &set_input,

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen &set_output, error_r) < 0) {

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen *error_r = t_strdup_printf(

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen "Error reading configuration: %s", *error_r);

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen return -1;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen }

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen *parser_r = ctx->service->set_parser;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen roots = settings_parser_get_roots(*parser_r);

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen for (i = 0; roots[i] != NULL; i++) {

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen if (strcmp(roots[i]->module_name,

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen mail_user_setting_parser_info.module_name) == 0) {

9b78c0d5e13141f4df6c6e483f854e5acb861288Timo Sirainen *user_info_r = roots[i];

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen return 0;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen }

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen }

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen i_unreached();

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen return -1;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenstatic void

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenmail_storage_service_first_init(struct mail_storage_service_ctx *ctx,

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen const struct setting_parser_info *user_info,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const struct mail_user_settings *user_set)

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen{

c5a6a6565be93224fc26522eda855b0990f256e8Timo Sirainen enum auth_master_flags flags = 0;

f934b271c69c7b3e5e3bca23ff9b3ab6187262c2Timo Sirainen

97180ea9c26c4de0807daaad21e03c80643b09fdTimo Sirainen i_assert(ctx->conn == NULL);

97180ea9c26c4de0807daaad21e03c80643b09fdTimo Sirainen

72f2a851238e5661695c63bff0e9a9e800ba577aTimo Sirainen ctx->debug = mail_user_set_get_mail_debug(user_info, user_set);

c5a6a6565be93224fc26522eda855b0990f256e8Timo Sirainen if (ctx->debug)

c5a6a6565be93224fc26522eda855b0990f256e8Timo Sirainen flags |= AUTH_MASTER_FLAG_DEBUG;

c5a6a6565be93224fc26522eda855b0990f256e8Timo Sirainen if ((ctx->flags & MAIL_STORAGE_SERVICE_FLAG_NO_IDLE_TIMEOUT) != 0)

c5a6a6565be93224fc26522eda855b0990f256e8Timo Sirainen flags |= AUTH_MASTER_FLAG_NO_IDLE_TIMEOUT;

c5a6a6565be93224fc26522eda855b0990f256e8Timo Sirainen ctx->conn = auth_master_init(user_set->auth_socket_path, flags);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen i_assert(mail_user_auth_master_conn == NULL);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen mail_user_auth_master_conn = ctx->conn;

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen}

fc464e5b2b2ab4d415a5d5b90ce4475d34620a75Timo Sirainen

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainenstatic void

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainenmail_storage_service_load_modules(struct mail_storage_service_ctx *ctx,

9ba7e76c20be775f368254e3059a6189fe789f16Timo Sirainen const struct setting_parser_info *user_info,

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen const struct mail_user_settings *user_set)

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen{

9ba7e76c20be775f368254e3059a6189fe789f16Timo Sirainen struct module_dir_load_settings mod_set;

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen if (*user_set->mail_plugins == '\0')

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen return;

705f6fbad395e6f014838e797b7dbcaceafd2f1dTimo Sirainen if ((ctx->flags & MAIL_STORAGE_SERVICE_FLAG_NO_PLUGINS) != 0)

b7835adbfddd8c92b51d6653fb759f963302fa78Timo Sirainen return;

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen

9ba7e76c20be775f368254e3059a6189fe789f16Timo Sirainen memset(&mod_set, 0, sizeof(mod_set));

bd63b5b860658b01b1f46f26d406e1e4a9dc019aTimo Sirainen mod_set.abi_version = DOVECOT_ABI_VERSION;

8552b0cad8ffe9ccb8270577ba28b8010c89af11Timo Sirainen mod_set.binary_name = master_service_get_name(ctx->service);

98c3aa2587ad3e81e1548a3a4f79b2a24566cec3Timo Sirainen mod_set.setting_name = "mail_plugins";

9ba7e76c20be775f368254e3059a6189fe789f16Timo Sirainen mod_set.require_init_funcs = TRUE;

72f2a851238e5661695c63bff0e9a9e800ba577aTimo Sirainen mod_set.debug = mail_user_set_get_mail_debug(user_info, user_set);

9ba7e76c20be775f368254e3059a6189fe789f16Timo Sirainen

38f227941bcf673e0e523c1ac7267bca9cbcd2c4Timo Sirainen mail_storage_service_modules =

38f227941bcf673e0e523c1ac7267bca9cbcd2c4Timo Sirainen module_dir_load_missing(mail_storage_service_modules,

38f227941bcf673e0e523c1ac7267bca9cbcd2c4Timo Sirainen user_set->mail_plugin_dir,

38f227941bcf673e0e523c1ac7267bca9cbcd2c4Timo Sirainen user_set->mail_plugins, &mod_set);

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen}

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainenstatic int extra_field_key_cmp_p(const char *const *s1, const char *const *s2)

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen{

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen const char *p1 = *s1, *p2 = *s2;

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen for (; *p1 == *p2; p1++, p2++) {

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen if (*p1 == '\0')

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen return 0;

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen }

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen if (*p1 == '=')

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen return -1;

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen if (*p2 == '=')

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen return 1;

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen return *p1 - *p2;

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen}

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenint mail_storage_service_lookup(struct mail_storage_service_ctx *ctx,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const struct mail_storage_service_input *input,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_user **user_r,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const char **error_r)

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen{

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen enum mail_storage_service_flags flags;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_user *user;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const char *username = input->username;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen const struct setting_parser_info *user_info;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const struct mail_user_settings *user_set;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen const char *const *userdb_fields, *error;

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen struct auth_user_reply reply;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen const struct setting_parser_context *set_parser;

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen void **sets;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen pool_t user_pool, temp_pool;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen int ret = 1;

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen

2984b6b095294c50c4626aef74a02d2e04472640Timo Sirainen user_pool = pool_alloconly_create("mail storage service user", 1024*6);

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen flags = mail_storage_service_input_get_flags(ctx, input);

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0 &&

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen geteuid() != 0) {

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen /* we dropped privileges only temporarily. switch back to root

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen if (seteuid(0) < 0)

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen i_fatal("seteuid(0) failed: %m");

984e5c91288139f8a2582be705ee7ef0d157a3f6Timo Sirainen }

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen if (mail_storage_service_read_settings(ctx, input, user_pool,

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen &user_info, &set_parser,

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen &error) < 0) {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen i_error("user %s: %s", username, error);

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen pool_unref(&user_pool);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = MAIL_ERRSTR_CRITICAL_MSG;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return -1;

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen }

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) == 0 &&

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen !ctx->log_initialized) {

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen /* initialize logging again, in case we only read the

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen ctx->log_initialized = TRUE;

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen master_service_init_log(ctx->service,

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen t_strconcat(ctx->service->name, ": ", NULL));

12797080b552a3c1727b73b61cc7427bec0c7472Timo Sirainen }

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen sets = master_service_settings_parser_get_others(master_service,

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen set_parser);

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen user_set = sets[0];

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (ctx->conn == NULL)

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen mail_storage_service_first_init(ctx, user_info, user_set);

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen /* load global plugins */

9ba7e76c20be775f368254e3059a6189fe789f16Timo Sirainen mail_storage_service_load_modules(ctx, user_info, user_set);

cf0ad1a0bddb0787f3d7b408a96d721a8b2a98a3Timo Sirainen

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen if (ctx->userdb_next_pool == NULL)

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen temp_pool = pool_alloconly_create("userdb lookup", 2048);

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen else {

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen temp_pool = ctx->userdb_next_pool;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen ctx->userdb_next_pool = NULL;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen pool_ref(temp_pool);

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen }

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) != 0) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen ret = service_auth_userdb_lookup(ctx, input, temp_pool,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen &username, &userdb_fields,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen error_r);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (ret <= 0) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen pool_unref(&temp_pool);

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen pool_unref(&user_pool);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return ret;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

6494ec1398bbc56e63beba727e2c4538ba5521a7Timo Sirainen if (ctx->userdb_next_fieldsp != NULL)

6494ec1398bbc56e63beba727e2c4538ba5521a7Timo Sirainen *ctx->userdb_next_fieldsp = userdb_fields;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen } else {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen userdb_fields = input->userdb_fields;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen user = p_new(user_pool, struct mail_storage_service_user, 1);

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen user->service_ctx = ctx;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen user->pool = user_pool;

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen user->input = *input;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen user->input.userdb_fields = NULL;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen user->input.username = p_strdup(user_pool, username);

2fb9ae42f9e36388ec6db24188b9108434043fd0Timo Sirainen user->user_info = user_info;

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen user->flags = flags;

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen user->set_parser = settings_parser_dup(set_parser, user_pool);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen if (!settings_parser_check(user->set_parser, user_pool, &error))

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen i_panic("settings_parser_check() failed: %s", error);

abb9b8f14e83baca887cf12210bfe480f6cde7a6Timo Sirainen

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen sets = master_service_settings_parser_get_others(master_service,

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen user->set_parser);

32b78da5dfbbf6a06b3dbdc9278c60b55714f9bcTimo Sirainen user->user_set = sets[0];

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen user->gid_source = "mail_gid setting";

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen user->uid_source = "mail_uid setting";

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_DEBUG) != 0)

44fea1d434a885f08b399459748b001a89f61c77Timo Sirainen (void)settings_parse_line(user->set_parser, "mail_debug=yes");

44fea1d434a885f08b399459748b001a89f61c77Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((flags & MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP) == 0) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const char *home = getenv("HOME");

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (home != NULL)

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen set_keyval(ctx, user, "mail_home", home);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen }

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen if (userdb_fields != NULL) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen auth_user_fields_parse(userdb_fields, temp_pool, &reply);

c56500d4363beba4ffa954069ab30f4401849156Timo Sirainen array_sort(&reply.extra_fields, extra_field_key_cmp_p);

c07d7eb3ca9754367697c98f5e66a3982a45d142Timo Sirainen if (user_reply_handle(ctx, user, &reply, &error) < 0) {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen i_error("user %s: Invalid settings in userdb: %s",

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen username, error);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = ERRSTR_INVALID_USER_SETTINGS;

57ff998a443881c8959a8e65f6325cf19fefc1d0Timo Sirainen ret = -2;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen }

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen pool_unref(&temp_pool);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen /* load per-user plugins */

57ff998a443881c8959a8e65f6325cf19fefc1d0Timo Sirainen if (ret > 0) {

57ff998a443881c8959a8e65f6325cf19fefc1d0Timo Sirainen mail_storage_service_load_modules(ctx, user_info,

57ff998a443881c8959a8e65f6325cf19fefc1d0Timo Sirainen user->user_set);

57ff998a443881c8959a8e65f6325cf19fefc1d0Timo Sirainen }

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen *user_r = user;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return ret;

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen}

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainenvoid mail_storage_service_save_userdb_fields(struct mail_storage_service_ctx *ctx,

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen pool_t pool, const char *const **userdb_fields_r)

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen{

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen i_assert(pool != NULL);

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen i_assert(userdb_fields_r != NULL);

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen ctx->userdb_next_pool = pool;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen ctx->userdb_next_fieldsp = userdb_fields_r;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen *userdb_fields_r = NULL;

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen}

3482fee0e3733456512ba110780824e6daa7ff9fTimo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenint mail_storage_service_next(struct mail_storage_service_ctx *ctx,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_user *user,

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen struct mail_user **mail_user_r)

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen{

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges priv;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *error;

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen unsigned int len;

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen bool disallow_root =

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (user->flags & MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT) != 0;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen bool temp_priv_drop =

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (user->flags & MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP) != 0;

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen bool use_chroot;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (service_parse_privileges(ctx, user, &priv, &error) < 0) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen i_error("user %s: %s", user->input.username, error);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen return -2;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen }

fa2a11210f20fb8998ed656f75e163191c8047e6Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (*priv.home != '/' && *priv.home != '\0') {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen i_error("user %s: "

63fc74d46d781e87edb6388e51a5bf942c5f8eabTimo Sirainen "Relative home directory paths not supported: %s",

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen user->input.username, priv.home);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen return -2;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen /* we can't chroot if we want to switch between users. there's

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen use_chroot = !temp_priv_drop ||

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen restrict_access_get_current_chroot() != NULL;

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen len = strlen(priv.chroot);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (len > 2 && strcmp(priv.chroot + len - 2, "/.") == 0 &&

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen strncmp(priv.home, priv.chroot, len - 2) == 0) {

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen /* mail_chroot = /chroot/. means that the home dir already

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen if (use_chroot) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv.home += len - 2;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (*priv.home == '\0')

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv.home = "/";

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv.chroot = t_strndup(priv.chroot, len - 2);

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen set_keyval(ctx, user, "mail_home", priv.home);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen set_keyval(ctx, user, "mail_chroot", priv.chroot);

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen }

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen } else if (len > 0 && !use_chroot) {

b00c511e4675c4a1270d92924fc445cfb8631cf3Timo Sirainen /* we're not going to chroot. fix home directory so we can

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (*priv.home == '\0' || strcmp(priv.home, "/") == 0)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv.home = priv.chroot;

ba02cf1dae8acbe439f79085603bb93a870cce34Timo Sirainen else

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv.home = t_strconcat(priv.chroot, priv.home, NULL);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen priv.chroot = "";

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen set_keyval(ctx, user, "mail_home", priv.home);

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen }

3c652e7a569c2623d22b4ab30279aebddce4d396Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_LOG_INIT) == 0)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen mail_storage_service_init_log(ctx, user, &priv);

d1fff80640050631b06bfab904a34b2ad24601e8Timo Sirainen

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen if ((user->flags & MAIL_STORAGE_SERVICE_FLAG_NO_RESTRICT_ACCESS) == 0) {

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (service_drop_privileges(user, &priv,

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen disallow_root, temp_priv_drop,

f3e17726502b6cf1912f30aae7e283b5d31ea69cTimo Sirainen FALSE, &error) < 0) {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen i_error("user %s: Couldn't drop privileges: %s",

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen user->input.username, error);

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen return -1;

c06d6ea0766d0520af1a93e6000c0e73f350e0a2Timo Sirainen }

95d9395d15540b3a96f75c7f9fd73e6d8ad5e897Timo Sirainen if (!temp_priv_drop ||

b9b841558c5f91db7f5fc71c0ac62aad1bbf6418Timo Sirainen (user->flags & MAIL_STORAGE_SERVICE_FLAG_ENABLE_CORE_DUMPS) != 0)

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen restrict_access_allow_coredumps(TRUE);

1b04762685272a53643ac2179939537a44c7c044Timo Sirainen }

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen

48ada47cce07fb7195a3437224c7c25f542326b0Timo Sirainen /* privileges are dropped. initialize plugins that haven't been

38f227941bcf673e0e523c1ac7267bca9cbcd2c4Timo Sirainen module_dir_init(mail_storage_service_modules);

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (mail_storage_service_init_post(ctx, user, &priv,

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen mail_user_r, &error) < 0) {

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen i_error("user %s: Initialization failed: %s",

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen user->input.username, error);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen return -2;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen }

367e28a16854ee9f7247b2518f36f5e9163fcc10Timo Sirainen return 0;

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen}

8d3278a82b964217d95c340ec6f82037cdc59d19Timo Sirainen

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainenvoid mail_storage_service_restrict_setenv(struct mail_storage_service_ctx *ctx,

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen struct mail_storage_service_user *user)

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen{

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen struct mail_storage_service_privileges priv;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen const char *error;

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (service_parse_privileges(ctx, user, &priv, &error) < 0)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen i_fatal("user %s: %s", user->input.username, error);

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen if (service_drop_privileges(user, &priv,

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen FALSE, FALSE, TRUE, &error) < 0)

13b063ba3ea51256fd97d7fa883f14cb08842b0dTimo Sirainen i_fatal("user %s: %s", user->input.username, error);

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen}

62fc2fe221eccc834ac6b11b94b55335d5027cd1Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenint mail_storage_service_lookup_next(struct mail_storage_service_ctx *ctx,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const struct mail_storage_service_input *input,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_user **user_r,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_user **mail_user_r,

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen const char **error_r)

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen{

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_user *user;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen int ret;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen ret = mail_storage_service_lookup(ctx, input, &user, error_r);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen if (ret <= 0)

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return ret;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen ret = mail_storage_service_next(ctx, user, mail_user_r);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen if (ret < 0) {

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen mail_storage_service_user_free(&user);

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen *error_r = ret == -2 ? ERRSTR_INVALID_USER_SETTINGS :

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen MAIL_ERRSTR_CRITICAL_MSG;

3b22894b8805b186c73d8b754001e8d7e944be85Timo Sirainen return ret;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen }

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen *user_r = user;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen return 1;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen}

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainenvoid mail_storage_service_user_free(struct mail_storage_service_user **_user)

c99fe55d4535d839a6ad0735c4719e076a1adb2cTimo Sirainen{

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen struct mail_storage_service_user *user = *_user;

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen *_user = NULL;

1388b590dbd85245b591346f860bc1319953318aTimo Sirainen

6727b100f6afdde039efc755a7cf45c93362f347Timo Sirainen if (user->ioloop_ctx != NULL) {

ae800c8a965688ab17415397dbc759a429e78199Timo Sirainen io_loop_context_remove_callbacks(user->ioloop_ctx,

ae800c8a965688ab17415397dbc759a429e78199Timo Sirainen mail_storage_service_io_activate,

ae800c8a965688ab17415397dbc759a429e78199Timo Sirainen mail_storage_service_io_deactivate, user);

6727b100f6afdde039efc755a7cf45c93362f347Timo Sirainen io_loop_context_unref(&user->ioloop_ctx);

6727b100f6afdde039efc755a7cf45c93362f347Timo Sirainen }

c99fe55d4535d839a6ad0735c4719e076a1adb2cTimo Sirainen settings_parser_deinit(&user->set_parser);

4da8c6cdefabd31262318c32da3c13de1d9ea953Timo Sirainen pool_unref(&user->pool);

c99fe55d4535d839a6ad0735c4719e076a1adb2cTimo Sirainen}

c99fe55d4535d839a6ad0735c4719e076a1adb2cTimo Sirainen

97180ea9c26c4de0807daaad21e03c80643b09fdTimo Sirainenvoid mail_storage_service_init_settings(struct mail_storage_service_ctx *ctx,

97180ea9c26c4de0807daaad21e03c80643b09fdTimo Sirainen const struct mail_storage_service_input *input)

88b315f36ba082708ab6f53ea1924c54d9be0aefTimo Sirainen{

88b315f36ba082708ab6f53ea1924c54d9be0aefTimo Sirainen const struct setting_parser_info *user_info;

88b315f36ba082708ab6f53ea1924c54d9be0aefTimo Sirainen const struct mail_user_settings *user_set;

5d03d9f439e41c90215a3c938ffebe4c2a8ae257Timo Sirainen const struct setting_parser_context *set_parser;