auth-request-handler.c revision e59faf65ce864fe95dc00f5d52b8323cdbd0608a
e59faf65ce864fe95dc00f5d52b8323cdbd0608aTimo Sirainen/* Copyright (c) 2005-2010 Dovecot authors, see the included COPYING file */
657afb33796f8216c568ad813627da89970760beTimo Sirainen
08d6658a4e2ec8104cd1307f6baa75fdb07a24f8Mark Washenberger#include "auth-common.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "ioloop.h"
a550b0fbcf7e876eeb88f4528209ed28cc416752Timo Sirainen#include "array.h"
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen#include "aqueue.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "base64.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "hash.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "str.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "str-sanitize.h"
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen#include "auth-penalty.h"
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include "auth-request.h"
ecb1b2d6236942bf82f822e8d0167f0e160b206dTimo Sirainen#include "auth-master-connection.h"
657afb33796f8216c568ad813627da89970760beTimo Sirainen#include "auth-request-handler.h"
657afb33796f8216c568ad813627da89970760beTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen#include <stdlib.h>
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
a3b3e5b452be15049a1f8bfd5b3bb640af41121cTimo Sirainen#define AUTH_FAILURE_DELAY_CHECK_MSECS 500
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstruct auth_request_handler {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen int refcount;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool_t pool;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct hash_table *requests;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth *auth;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int connect_uid, client_pid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_callback_t *master_callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen};
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstatic ARRAY_DEFINE(auth_failures_arr, struct auth_request *);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstatic struct aqueue *auth_failures;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic struct timeout *to_auth_failures;
657afb33796f8216c568ad813627da89970760beTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstatic void auth_failure_timeout(void *context);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
59151b71059df1190acd75d8717ed04a7920c862Timo Sirainen#undef auth_request_handler_create
657afb33796f8216c568ad813627da89970760beTimo Sirainenstruct auth_request_handler *
9b62bbaf33d4516b5dffb36c3ea32ce217e7fbb1Timo Sirainenauth_request_handler_create(struct auth *auth,
657afb33796f8216c568ad813627da89970760beTimo Sirainen auth_request_callback_t *callback, void *context,
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen auth_request_callback_t *master_callback)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool_t pool;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen pool = pool_alloconly_create("auth request handler", 4096);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler = p_new(pool, struct auth_request_handler, 1);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount = 1;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->pool = pool;
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen handler->requests = hash_table_create(default_pool, pool, 0, NULL, NULL);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->auth = auth;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback = callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->context = context;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->master_callback = master_callback;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return handler;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainenvoid auth_request_handler_unref(struct auth_request_handler **_handler)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen struct auth_request_handler *handler = *_handler;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct hash_iterate_context *iter;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *key, *value;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen *_handler = NULL;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_assert(handler->refcount > 0);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (--handler->refcount > 0)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen iter = hash_table_iterate_init(handler->requests);
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen while (hash_table_iterate(iter, &key, &value)) {
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen struct auth_request *auth_request = value;
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen auth_request_unref(&auth_request);
b1e6ea3323b4d753909f79226a8a98d854f819faTimo Sirainen }
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen hash_table_iterate_deinit(&iter);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* notify parent that we're done with all requests */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->callback(NULL, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen hash_table_destroy(&handler->requests);
648d24583c1574441c4fa0331a90bd4d6e7996c5Timo Sirainen pool_unref(&handler->pool);
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
70905e51a5148bd5613cb04720807177474a2496Timo Sirainenvoid auth_request_handler_set(struct auth_request_handler *handler,
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen unsigned int connect_uid,
70905e51a5148bd5613cb04720807177474a2496Timo Sirainen unsigned int client_pid)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->connect_uid = connect_uid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->client_pid = client_pid;
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_request_handler_remove(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen hash_table_remove(handler->requests, POINTER_CAST(request->id));
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen auth_request_unref(&request);
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
70905e51a5148bd5613cb04720807177474a2496Timo Sirainenvoid auth_request_handler_check_timeouts(struct auth_request_handler *handler)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct hash_iterate_context *iter;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen void *key, *value;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen iter = hash_table_iterate_init(handler->requests);
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen while (hash_table_iterate(iter, &key, &value)) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request = value;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
fda2c460c58f50bf035680187be606542a8c1dacTimo Sirainen if (request->last_access + AUTH_REQUEST_TIMEOUT < ioloop_time)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen hash_table_iterate_deinit(&iter);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainenstatic void get_client_extra_fields(struct auth_request *request,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen const char **fields, *extra_fields;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int src, dest;
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen bool seen_pass = FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
bbf81c8fc6f21382707673dc6bd7b87ffc27981bTimo Sirainen if (auth_stream_is_empty(request->extra_fields))
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen return;
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen
bbf81c8fc6f21382707673dc6bd7b87ffc27981bTimo Sirainen extra_fields = auth_stream_reply_export(request->extra_fields);
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen
bbf81c8fc6f21382707673dc6bd7b87ffc27981bTimo Sirainen if (!request->proxy) {
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen /* we only wish to remove all fields prefixed with "userdb_" */
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen if (strstr(extra_fields, "userdb_") == NULL) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_import(reply, extra_fields);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen return;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen }
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen fields = t_strsplit(extra_fields, "\t");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen for (src = dest = 0; fields[src] != NULL; src++) {
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen if (strncmp(fields[src], "userdb_", 7) != 0) {
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen if (!seen_pass && strncmp(fields[src], "pass=", 5) == 0)
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen seen_pass = TRUE;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_import(reply, fields[src]);
1e0bdb2d0fa7bbd0a0a254754680f6c6d0195333Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen if (request->proxy) {
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen /* we're proxying */
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen if (!seen_pass && request->mech_password != NULL) {
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen /* send back the password that was sent by user
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen (not the password in passdb). */
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen auth_stream_reply_add(reply, "pass",
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen request->mech_password);
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen }
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen if (request->master_user != NULL) {
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen /* the master username needs to be forwarded */
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen auth_stream_reply_add(reply, "master",
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen request->master_user);
ccef83820a01bb37ad48653a05a9c5aa6560826aTimo Sirainen }
662a9000b1788f1cdf765e6b1c89df9a42cc3e32Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenstatic void
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainenauth_request_handle_failure(struct auth_request *request,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply)
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen{
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen struct auth_request_handler *handler = request->context;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (request->delayed_failure) {
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen /* we came here from flush_failures() */
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->callback(reply, handler->context);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen return;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen }
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen /* remove the request from requests-list */
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_ref(request);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_handler_remove(handler, request);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (request->no_failure_delay) {
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen /* passdb specifically requested not to delay the
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen reply. */
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->callback(reply, handler->context);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_unref(&request);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen return;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen }
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen /* failure. don't announce it immediately to avoid
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen a) timing attacks, b) flooding */
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen request->delayed_failure = TRUE;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen handler->refcount++;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
f42581dd841281a4434e5c52488e0eda9716c891Timo Sirainen auth_penalty_update(request->auth->penalty, request,
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->last_penalty + 1);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen request->last_access = ioloop_time;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen aqueue_append(auth_failures, &request);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (to_auth_failures == NULL) {
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen to_auth_failures =
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen timeout_add(AUTH_FAILURE_DELAY_CHECK_MSECS,
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_failure_timeout, NULL);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen }
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen}
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_callback(struct auth_request *request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen enum auth_client_result result,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen const void *auth_reply, size_t reply_size)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler = request->context;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen string_t *str;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen switch (result) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case AUTH_CLIENT_RESULT_CONTINUE:
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "CONT", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen str = t_str_new(MAX_BASE64_ENCODED_SIZE(reply_size));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen base64_encode(auth_reply, reply_size, str);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, str_c(str));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen request->accept_input = TRUE;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->callback(reply, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case AUTH_CLIENT_RESULT_SUCCESS:
0fec6dfc23e568bae53f03c9491df7f64473dd67Timo Sirainen auth_request_proxy_finish(request, TRUE);
3d8f3c378de13e32018e2b116f6b67bd69cd28fbTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen if (request->last_penalty != 0) {
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen /* reset penalty */
f42581dd841281a4434e5c52488e0eda9716c891Timo Sirainen auth_penalty_update(request->auth->penalty, request, 0);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen }
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "OK", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "user", request->user);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (reply_size > 0) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen str = t_str_new(MAX_BASE64_ENCODED_SIZE(reply_size));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen base64_encode(auth_reply, reply_size, str);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "resp", str_c(str));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen get_client_extra_fields(request, reply);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->no_login || handler->master_callback == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* this request doesn't have to wait for master
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen process to pick it up. delete it */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->callback(reply, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen case AUTH_CLIENT_RESULT_FAILURE:
0fec6dfc23e568bae53f03c9491df7f64473dd67Timo Sirainen auth_request_proxy_finish(request, FALSE);
0fec6dfc23e568bae53f03c9491df7f64473dd67Timo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->user != NULL)
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "user", request->user);
708ea1c397d89586af66c97d74c907f3f2b95134Timo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->internal_failure)
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "temp", NULL);
708ea1c397d89586af66c97d74c907f3f2b95134Timo Sirainen else if (request->master_user != NULL) {
708ea1c397d89586af66c97d74c907f3f2b95134Timo Sirainen /* authentication succeeded, but we can't log in
708ea1c397d89586af66c97d74c907f3f2b95134Timo Sirainen as the wanted user */
708ea1c397d89586af66c97d74c907f3f2b95134Timo Sirainen auth_stream_reply_add(reply, "authz", NULL);
708ea1c397d89586af66c97d74c907f3f2b95134Timo Sirainen }
e5dec382163b476bed16dbf7eb470913a9bbdbe1Timo Sirainen if (request->no_failure_delay)
e5dec382163b476bed16dbf7eb470913a9bbdbe1Timo Sirainen auth_stream_reply_add(reply, "nodelay", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen get_client_extra_fields(request, reply);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_request_handle_failure(request, reply);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* NOTE: request may be destroyed now */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen auth_request_handler_unref(&handler);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenstatic void auth_request_handler_auth_fail(struct auth_request_handler *handler,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *reason)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_log_info(request, request->mech->mech_name, "%s", reason);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "reason", reason);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->callback(reply, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainenstatic void auth_request_penalty_finish(struct auth_request *request)
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen{
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen timeout_remove(&request->to_penalty);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_request_initial(request);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen}
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainenstatic void
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainenauth_penalty_callback(unsigned int penalty, struct auth_request *request)
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen{
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen unsigned int secs;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->last_penalty = penalty;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen if (penalty == 0)
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_request_initial(request);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen else {
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen secs = auth_penalty_to_secs(penalty);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->to_penalty = timeout_add(secs * 1000,
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen auth_request_penalty_finish,
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen }
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen}
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainenbool auth_request_handler_auth_begin(struct auth_request_handler *handler,
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen const char *args)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
7242e1ce7803b83bc82e239ef111b47c1c72dd4bAndrey Panin const struct mech_module *mech;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *const *list, *name, *arg, *initial_resp;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen void *initial_resp_data;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buffer_t *buf;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* <id> <mechanism> [...] */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen list = t_strsplit(args, "\t");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (list[0] == NULL || list[1] == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client %u "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "sent broken AUTH request", handler->client_pid);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen id = (unsigned int)strtoul(list[0], NULL, 10);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen mech = mech_module_find(list[1]);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (mech == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* unsupported mechanism */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client %u requested unsupported "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "authentication mechanism %s", handler->client_pid,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen str_sanitize(list[1], MAX_MECH_NAME_LEN));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request = auth_request_new(handler->auth, mech, auth_callback, handler);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->connect_uid = handler->connect_uid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->client_pid = handler->client_pid;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->id = id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* parse optional parameters */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen initial_resp = NULL;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen for (list += 2; *list != NULL; list++) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen arg = strchr(*list, '=');
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (arg == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen name = *list;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen arg = "";
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen } else {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen name = t_strdup_until(*list, arg);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen arg++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
70c181da837ed85fc5b0426c010b65609bda5329Timo Sirainen if (auth_request_import(request, name, arg))
70c181da837ed85fc5b0426c010b65609bda5329Timo Sirainen ;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen else if (strcmp(name, "resp") == 0) {
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen initial_resp = arg;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen /* this must be the last parameter */
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen list++;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen break;
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen }
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen }
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen if (*list != NULL) {
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen i_error("BUG: Authentication client %u "
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen "sent AUTH parameters after 'resp'",
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen handler->client_pid);
382c7aec3e3449ed8271c2a202b67cefaa31dc8eTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request->service == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client %u "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "didn't specify service in request",
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->client_pid);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen hash_table_insert(handler->requests, POINTER_CAST(id), request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (request->auth->set->ssl_require_client_cert &&
258ff7d4f03dd9d29eca3664e4acacdf7f528234Timo Sirainen !request->valid_client_cert) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* we fail without valid certificate */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Client didn't present valid SSL certificate");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
4f2248a8a70985c7295afc3bf91c848e81d740d9Timo Sirainen /* Empty initial response is a "=" base64 string. Completely empty
4f2248a8a70985c7295afc3bf91c848e81d740d9Timo Sirainen string shouldn't really be sent, but at least Exim does it,
4f2248a8a70985c7295afc3bf91c848e81d740d9Timo Sirainen so just allow it for backwards compatibility.. */
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen if (initial_resp != NULL && *initial_resp != '\0') {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen size_t len = strlen(initial_resp);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buf = buffer_create_dynamic(pool_datastack_create(),
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen MAX_BASE64_DECODED_SIZE(len));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (base64_decode(initial_resp, len, NULL, buf) < 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Invalid base64 data in initial response");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen initial_resp_data =
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen p_malloc(request->pool, I_MAX(buf->used, 1));
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen memcpy(initial_resp_data, buf->data, buf->used);
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->initial_response = initial_resp_data;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen request->initial_response_len = buf->used;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* handler is referenced until auth_callback is called. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen
e76073ebaf90fa29abfdc364873acf78983949aaTimo Sirainen /* before we start authenticating, see if we need to wait first */
f42581dd841281a4434e5c52488e0eda9716c891Timo Sirainen auth_penalty_lookup(request->auth->penalty, request,
f42581dd841281a4434e5c52488e0eda9716c891Timo Sirainen auth_penalty_callback);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainenbool auth_request_handler_auth_continue(struct auth_request_handler *handler,
6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen const char *args)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen const char *data;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen size_t data_len;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buffer_t *buf;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen unsigned int id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen data = strchr(args, '\t');
ccb77e2f63626ec46e5745ef4f38baa8e8e504fcTimo Sirainen if (data == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("BUG: Authentication client sent broken CONT request");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
ccb77e2f63626ec46e5745ef4f38baa8e8e504fcTimo Sirainen data++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen id = (unsigned int)strtoul(args, NULL, 10);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen request = hash_table_lookup(handler->requests, POINTER_CAST(id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request == NULL) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(id));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "reason", "Timeouted");
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->callback(reply, handler->context);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* accept input only once after mechanism has sent a CONT reply */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (!request->accept_input) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Unexpected continuation");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->accept_input = FALSE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen data_len = strlen(data);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen buf = buffer_create_dynamic(pool_datastack_create(),
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen MAX_BASE64_DECODED_SIZE(data_len));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (base64_decode(data, data_len, NULL, buf) < 0) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_auth_fail(handler, request,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "Invalid base64 data in continued response");
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* handler is referenced until auth_callback is called. */
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_continue(request, buf->data, buf->used);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return TRUE;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainenstatic void userdb_callback(enum userdb_result result,
137ea7ca34005345aa2304a940149b7f3774d727Timo Sirainen struct auth_request *request)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request_handler *handler = request->context;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen i_assert(request->state == AUTH_REQUEST_STATE_USERDB);
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen request->state = AUTH_REQUEST_STATE_FINISHED;
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen
6fabfb7bbfd88d0c1de66981e52850f26067623bTimo Sirainen if (request->userdb_lookup_failed)
6fabfb7bbfd88d0c1de66981e52850f26067623bTimo Sirainen result = USERDB_RESULT_INTERNAL_FAILURE;
6fabfb7bbfd88d0c1de66981e52850f26067623bTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen switch (result) {
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen case USERDB_RESULT_INTERNAL_FAILURE:
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "FAIL", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen break;
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen case USERDB_RESULT_USER_UNKNOWN:
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "NOTFOUND", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen break;
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen case USERDB_RESULT_OK:
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "USER", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(request->id));
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen if (request->master_user != NULL) {
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(request->userdb_reply,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen "master_user",
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen request->master_user);
7e078be0d6f12ca56860641d36e3c517e3046895Timo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_import(reply,
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_export(request->userdb_reply));
0f39a57760d93cddbce3ca43096d78e0fe2f42fdTimo Sirainen break;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->master_callback(reply, request->master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
ecb1b2d6236942bf82f822e8d0167f0e160b206dTimo Sirainen auth_master_connection_unref(&request->master);
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen auth_request_unref(&request);
d5cebe7f98e63d4e2822863ef2faa4971e8b3a5dTimo Sirainen auth_request_handler_unref(&handler);
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
657afb33796f8216c568ad813627da89970760beTimo Sirainenvoid auth_request_handler_master_request(struct auth_request_handler *handler,
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen struct auth_master_connection *master,
657afb33796f8216c568ad813627da89970760beTimo Sirainen unsigned int id,
657afb33796f8216c568ad813627da89970760beTimo Sirainen unsigned int client_id)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen struct auth_request *request;
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen struct auth_stream_reply *reply;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen reply = auth_stream_reply_init(pool_datastack_create());
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
3ccab0bac68040f179a7de45c516cec258e28fdbTimo Sirainen request = hash_table_lookup(handler->requests, POINTER_CAST(client_id));
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen if (request == NULL) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("Master request %u.%u not found",
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->client_pid, client_id);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "NOTFOUND", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(id));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->master_callback(reply, master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen return;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_ref(request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_handler_remove(handler, request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen if (request->state != AUTH_REQUEST_STATE_FINISHED ||
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen !request->successful) {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen i_error("Master requested unfinished authentication request "
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen "%u.%u", handler->client_pid, client_id);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, "NOTFOUND", NULL);
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen auth_stream_reply_add(reply, NULL, dec2str(id));
226259ee6fb9830dafc1a5ba1e95bf5a4345b406Timo Sirainen handler->master_callback(reply, master);
0a8ec3c561c26c492a50511692650ea302cc8c14Timo Sirainen auth_request_unref(&request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen } else {
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen /* the request isn't being referenced anywhere anymore,
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen so we can do a bit of kludging.. replace the request's
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen old client_id with master's id. */
615c4aba4cc0b17eefba3263b85972adaba04586Timo Sirainen request->state = AUTH_REQUEST_STATE_USERDB;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->id = id;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen request->context = handler;
ad49932dae8ba31e07544b66bbc4f4de707a751cTimo Sirainen request->master = master;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
ecb1b2d6236942bf82f822e8d0167f0e160b206dTimo Sirainen /* master and handler are referenced until userdb_callback i
ecb1b2d6236942bf82f822e8d0167f0e160b206dTimo Sirainen s called. */
ecb1b2d6236942bf82f822e8d0167f0e160b206dTimo Sirainen auth_master_connection_ref(master);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen handler->refcount++;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen auth_request_lookup_user(request, userdb_callback);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainenvoid auth_request_handler_flush_failures(bool flush_all)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen struct auth_request **auth_requests, *auth_request;
a550b0fbcf7e876eeb88f4528209ed28cc416752Timo Sirainen unsigned int i, count;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen time_t diff;
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen count = aqueue_count(auth_failures);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (count == 0) {
a3b3e5b452be15049a1f8bfd5b3bb640af41121cTimo Sirainen if (to_auth_failures != NULL)
a3b3e5b452be15049a1f8bfd5b3bb640af41121cTimo Sirainen timeout_remove(&to_auth_failures);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen return;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen }
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_requests = array_idx_modifiable(&auth_failures_arr, 0);
a550b0fbcf7e876eeb88f4528209ed28cc416752Timo Sirainen for (i = 0; i < count; i++) {
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request = auth_requests[aqueue_idx(auth_failures, 0)];
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen /* FIXME: assumess that failure_delay is always the same. */
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen diff = ioloop_time - auth_request->last_access;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (diff < (time_t)auth_request->auth->set->failure_delay &&
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen !flush_all)
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen break;
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen aqueue_delete_tail(auth_failures);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen i_assert(auth_request->state == AUTH_REQUEST_STATE_FINISHED);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request->callback(auth_request,
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen AUTH_CLIENT_RESULT_FAILURE, NULL, 0);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_unref(&auth_request);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen }
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
43d32cbe60fdaef2699d99f1ca259053e9350411Timo Sirainenstatic void auth_failure_timeout(void *context ATTR_UNUSED)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_handler_flush_failures(FALSE);
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenvoid auth_request_handler_init(void)
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainen{
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen i_array_init(&auth_failures_arr, 128);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_failures = aqueue_init(&auth_failures_arr.arr);
657afb33796f8216c568ad813627da89970760beTimo Sirainen}
657afb33796f8216c568ad813627da89970760beTimo Sirainen
66d2db642fe24d555d113ba463e446b038d476efTimo Sirainenvoid auth_request_handler_deinit(void)
657afb33796f8216c568ad813627da89970760beTimo Sirainen{
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen auth_request_handler_flush_failures(TRUE);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen array_free(&auth_failures_arr);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen aqueue_deinit(&auth_failures);
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen if (to_auth_failures != NULL)
2872c818f9c6704609f4d67d984b033a63e3a108Timo Sirainen timeout_remove(&to_auth_failures);
657afb33796f8216c568ad813627da89970760beTimo Sirainen}