src/master/master-settings.c

	master-settings.c revision d646fdbd060e799a7a3812e63ae66471cd4a9086
8900b9eb2514c07047541833286428572493a9fdStéphane Graber/* Copyright (C) 2002 Timo Sirainen */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include "common.h"
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include "istream.h"
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include "safe-mkdir.h"
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include "unlink-directory.h"
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include "settings.h"
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include <stdio.h>
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include <stddef.h>
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include <unistd.h>
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include <fcntl.h>
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#include <pwd.h>
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#define DEF(type, name) \
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    { type, #name, offsetof(struct settings, name) }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic struct setting_def setting_defs[] = {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* common */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, base_dir),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, log_path),
a5ba96715d4ef264c43d4f187251de491ba198c0KATOH Yasufumi    DEF(SET_STR, info_log_path),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, log_timestamp),
8900b9eb2514c07047541833286428572493a9fdStéphane Graber
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* general */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, protocols),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, imap_listen),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, imaps_listen),
faefa7f8584a7d1567df2e6f1f9240a28a6466abStéphane Graber    DEF(SET_STR, pop3_listen),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, pop3s_listen),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, ssl_disable),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, ssl_cert_file),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, ssl_key_file),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, ssl_parameters_file),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, ssl_parameters_regenerate),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, disable_plaintext_auth),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* login */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, login_dir),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, login_chroot),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* mail */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, valid_chroot_dirs),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, max_mail_processes),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, verbose_proctitle),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, first_valid_uid),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, last_valid_uid),
6127da6b3f5815028bee187ac98840cd94313841KATOH Yasufumi    DEF(SET_INT, first_valid_gid),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, last_valid_gid),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, default_mail_env),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mail_cache_fields),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mail_never_cache_fields),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mailbox_check_interval),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mail_save_crlf),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mail_read_mmaped),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, maildir_copy_with_hardlinks),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, maildir_check_content_changes),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mbox_locks),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mbox_read_dotlock),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mbox_lock_timeout),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mbox_dotlock_change_timeout),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, overwrite_incompatible_index),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, umask),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* imap */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, imap_executable),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, imap_process_size),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* pop3 */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, pop3_executable),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, pop3_process_size),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    { 0, NULL, 0 }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi};
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#undef DEF
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#define DEF(type, name) \
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    { type, #name, offsetof(struct login_settings, name) }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic struct setting_def login_setting_defs[] = {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, executable),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, user),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, process_per_connection),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, process_size),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, processes_count),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, max_processes_count),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, max_logging_users),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    { 0, NULL, 0 }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi};
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#undef DEF
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi#define DEF(type, name) \
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    { type, #name, offsetof(struct auth_settings, name) }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic struct setting_def auth_setting_defs[] = {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, mechanisms),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, realms),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, userdb),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, passdb),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, executable),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, user),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_STR, chroot),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, use_cyrus_sasl),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_BOOL, verbose),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, count),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    DEF(SET_INT, process_size),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    { 0, NULL, 0 }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi};
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistruct settings default_settings = {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* common */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(base_dir) PKG_RUNDIR,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(log_path) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(info_log_path) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(log_timestamp) DEFAULT_FAILURE_STAMP_FORMAT,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* general */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(protocols) "imap imaps",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(imap_listen) "*",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(imaps_listen) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(pop3_listen) "*",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(pop3s_listen) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(ssl_disable) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(ssl_cert_file) SSLDIR"/certs/dovecot.pem",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(ssl_key_file) SSLDIR"/private/dovecot.pem",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(ssl_parameters_file) "ssl-parameters.dat",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(ssl_parameters_regenerate) 24,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(disable_plaintext_auth) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* login */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(login_dir) "login",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(login_chroot) TRUE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* mail */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(valid_chroot_dirs) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(max_mail_processes) 1024,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(verbose_proctitle) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(first_valid_uid) 500,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(last_valid_uid) 0,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(first_valid_gid) 1,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(last_valid_gid) 0,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(default_mail_env) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mail_cache_fields) "MessagePart",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mail_never_cache_fields) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mailbox_check_interval) 0,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mail_save_crlf) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mail_read_mmaped) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(maildir_copy_with_hardlinks) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(maildir_check_content_changes) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mbox_locks) "dotlock fcntl flock",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mbox_read_dotlock) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mbox_lock_timeout) 300,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(mbox_dotlock_change_timeout) 30,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(overwrite_incompatible_index) FALSE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(umask) 0077,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* imap */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(imap_executable) PKG_LIBEXECDIR"/imap",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(imap_process_size) 256,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    /* pop3 */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(pop3_executable) PKG_LIBEXECDIR"/pop3",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(pop3_process_size) 256,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(login_gid) 0,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(auths) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(logins) NULL
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi};
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistruct login_settings default_login_settings = {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(next) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(name) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(executable) NULL,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(user) "dovecot",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(process_per_connection) TRUE,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(process_size) 16,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(processes_count) 3,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(max_processes_count) 128,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(max_logging_users) 256,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    MEMBER(uid) 0 /* generated */
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi};
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic pool_t settings_pool;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistruct settings *set = NULL;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic void fix_base_path(struct settings *set, const char **str)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi{
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (*str != NULL && **str != '\0' && **str != '/') {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        *str = p_strconcat(settings_pool,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi                   set->base_dir, "/", *str, NULL);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi}
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic void get_login_uid(struct settings *set,
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi              struct login_settings *login_set)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi{
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    struct passwd *pw;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if ((pw = getpwnam(login_set->user)) == NULL)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("Login user doesn't exist: %s", login_set->user);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (set->login_gid == 0)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        set->login_gid = pw->pw_gid;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    else if (set->login_gid != pw->pw_gid) {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("All login process users must belong to same group "
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi            "(%s vs %s)", dec2str(set->login_gid),
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi            dec2str(pw->pw_gid));
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    login_set->uid = pw->pw_uid;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi}
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic void auth_settings_verify(struct auth_settings *auth)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi{
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (access(auth->executable, X_OK) < 0)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("Can't use auth executable %s: %m", auth->executable);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    fix_base_path(set, &auth->chroot);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (auth->chroot != NULL && access(auth->chroot, X_OK) < 0) {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("Can't access auth chroot directory %s: %m",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi            auth->chroot);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi}
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic void login_settings_verify(struct login_settings *login)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi{
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (access(login->executable, X_OK) < 0)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("Can't use login executable %s: %m", login->executable);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (login->processes_count < 1)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("login_processes_count must be at least 1");
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (login->max_logging_users < 1)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        i_fatal("max_logging_users must be at least 1");
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi}
8900b9eb2514c07047541833286428572493a9fdStéphane Graber
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic const char *get_directory(const char *path)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi{
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    char *str, *p;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    str = t_strdup_noconst(path);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    p = strrchr(str, '/');
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (p == NULL)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        return ".";
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    else {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        *p = '\0';
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        return str;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi}
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumistatic void settings_verify(struct settings *set)
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi{
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    struct login_settings *login;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    struct auth_settings *auth;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    const char *const *str;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    const char *dir;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    int dotlock_got, fcntl_got, flock_got;
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    for (login = set->logins; login != NULL; login = login->next) {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        get_login_uid(set, login);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        login_settings_verify(login);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    if (strstr(set->protocols, "imap") != NULL) {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        if (access(set->imap_executable, X_OK) < 0) {
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi            i_fatal("Can't use imap executable %s: %m",
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi                set->imap_executable);
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi        }
57da8c32f85c0255efa61ee32e260068afdaa565KATOH Yasufumi    }

    if (strstr(set->protocols, "pop3") != NULL) {
        if (access(set->pop3_executable, X_OK) < 0) {
            i_fatal("Can't use pop3 executable %s: %m",
                set->pop3_executable);
        }
    }

    if (set->log_path != NULL) {
        dir = get_directory(set->log_path);
        if (access(dir, W_OK) < 0)
            i_fatal("Can't access log directory %s: %m", dir);
    }

    if (set->info_log_path != NULL) {
        dir = get_directory(set->info_log_path);
        if (access(dir, W_OK) < 0)
            i_fatal("Can't access info log directory %s: %m", dir);
    }

#ifdef HAVE_SSL
    if (!set->ssl_disable) {
        if (access(set->ssl_cert_file, R_OK) < 0) {
            i_fatal("Can't use SSL certificate %s: %m",
                set->ssl_cert_file);
        }

        if (access(set->ssl_key_file, R_OK) < 0) {
            i_fatal("Can't use SSL key file %s: %m",
                set->ssl_key_file);
        }
    }
#endif

    /* fix relative paths */
    fix_base_path(set, &set->ssl_parameters_file);
    fix_base_path(set, &set->login_dir);

    /* since they're under /var/run by default, they may have been
       deleted. */
    if (safe_mkdir(set->base_dir, 0700, geteuid(), getegid()) == 0) {
        i_warning("Corrected permissions for base directory %s",
              PKG_RUNDIR);
    }

    /* wipe out contents of login directory, if it exists */
    if (unlink_directory(set->login_dir, FALSE) < 0)
        i_fatal("unlink_directory() failed for %s: %m", set->login_dir);

    if (safe_mkdir(set->login_dir, 0750, geteuid(), set->login_gid) == 0) {
        i_warning("Corrected permissions for login directory %s",
              set->login_dir);
    }

    if (set->max_mail_processes < 1)
        i_fatal("max_mail_processes must be at least 1");

    if (set->last_valid_uid != 0 &&
        set->first_valid_uid > set->last_valid_uid)
        i_fatal("first_valid_uid can't be larger than last_valid_uid");
    if (set->last_valid_gid != 0 &&
        set->first_valid_gid > set->last_valid_gid)
        i_fatal("first_valid_gid can't be larger than last_valid_gid");

    dotlock_got = fcntl_got = flock_got = FALSE;
    for (str = t_strsplit(set->mbox_locks, " "); *str != NULL; str++) {
        if (strcasecmp(*str, "dotlock") == 0)
            dotlock_got = TRUE;
        else if (strcasecmp(*str, "fcntl") == 0)
            fcntl_got = TRUE;
        else if (strcasecmp(*str, "flock") == 0)
            flock_got = TRUE;
        else
            i_fatal("mbox_locks: Invalid value %s", *str);
    }

#ifndef HAVE_FLOCK
    if (fcntl_got && !dotlock_got && !flock_got) {
        i_fatal("mbox_locks: Only flock selected, "
            "and flock() isn't supported in this system");
    }
    flock_got = FALSE;
#endif

    if (!dotlock_got && !fcntl_got && !flock_got)
        i_fatal("mbox_locks: No mbox locking methods selected");

    if (dotlock_got && !set->mbox_read_dotlock &&
        !fcntl_got && !flock_got) {
        i_warning("mbox_locks: Only dotlock selected, forcing "
              "mbox_read_dotlock = yes to avoid corruption.");
                set->mbox_read_dotlock = TRUE;
    }

    for (auth = set->auths; auth != NULL; auth = auth->next)
        auth_settings_verify(auth);
}

static void auth_settings_new(struct settings *set, const char *name)
{
    struct auth_settings *auth;

    auth = p_new(settings_pool, struct auth_settings, 1);
    auth->name = p_strdup(settings_pool, name);
    auth->executable = p_strdup(settings_pool,
                    PKG_LIBEXECDIR"/dovecot-auth");
    auth->count = 1;

    auth->next = set->auths;
        set->auths = auth;
}

static const char *parse_new_auth(struct settings *set, const char *name)
{
    struct auth_settings *auth;

    if (strchr(name, '/') != NULL)
        return "Authentication process name must not contain '/'";

    for (auth = set->auths; auth != NULL; auth = auth->next) {
        if (strcmp(auth->name, name) == 0) {
            return "Authentication process already exists "
                "with the same name";
        }
    }

    auth_settings_new(set, name);
    return NULL;
}

static void login_settings_new(struct settings *set, const char *name)
{
    struct login_settings *login;

    login = p_new(settings_pool, struct login_settings, 1);

    /* copy defaults */
    *login = set->logins != NULL ? *set->logins :
        default_login_settings;

    if (strcasecmp(name, "imap") == 0) {
        login->name = "imap";
        login->executable = PKG_LIBEXECDIR"/imap-login";
    } else if (strcasecmp(name, "pop3") == 0) {
        login->name = "pop3";
        login->executable = PKG_LIBEXECDIR"/pop3-login";
    } else {
        i_fatal("Unknown login process type '%s'", name);
    }

    login->next = set->logins;
    set->logins = login;
}

static const char *parse_new_login(struct settings *set, const char *name)
{
    struct login_settings *login;

    for (login = set->logins; login != NULL; login = login->next) {
        if (strcmp(login->name, name) == 0) {
            return "Login process already exists "
                "with the same name";
        }
    }

    login_settings_new(set, name);
    return NULL;
}

static const char *parse_setting(const char *key, const char *value,
                 void *context)
{
    struct settings *set = context;
    const char *error;

    /* check defaults first, there's a few login_ settings defined in it
       which need to be checked before trying to feed it to login
       handler.. */
    error = parse_setting_from_defs(settings_pool, setting_defs,
                    set, key, value);
    if (error == NULL)
        return NULL;

    if (strcmp(key, "auth") == 0)
        return parse_new_auth(set, value);
    if (strncmp(key, "auth_", 5) == 0) {
        if (set->auths == NULL)
            return "Authentication process name not defined yet";

        return parse_setting_from_defs(settings_pool, auth_setting_defs,
                           set->auths, key + 5, value);
    }

    if (strcmp(key, "login") == 0)
        return parse_new_login(set, value);
    if (strncmp(key, "login_", 6) == 0) {
        if (set->logins == NULL)
            return "Login process name not defined yet";

        return parse_setting_from_defs(settings_pool,
                           login_setting_defs,
                           set->logins, key + 6, value);
    }

    return error;
}

void master_settings_read(const char *path)
{
    p_clear(settings_pool);
    set = p_new(settings_pool, struct settings, 1);
    *set = default_settings;

    settings_read(path, parse_setting, set);

        settings_verify(set);
}

void master_settings_init(void)
{
    settings_pool = pool_alloconly_create("settings", 1024);
}

void master_settings_deinit(void)
{
    pool_unref(settings_pool);
}