/* ccapi/server/ccs_ccache.c */ /* * Copyright 2006, 2007 Massachusetts Institute of Technology. * All Rights Reserved. * * Export of this software from the United States of America may * require a specific license from the United States Government. * It is the responsibility of any person or organization contemplating * export to obtain such a license before exporting. * * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and * distribute this software and its documentation for any purpose and * without fee is hereby granted, provided that the above copyright * notice appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, and that * the name of M.I.T. not be used in advertising or publicity pertaining * to distribution of the software without specific, written prior * permission. Furthermore if you modify this software you must label * your software as modified software and not distribute it in such a * fashion that it might be confused with the original M.I.T. software. * M.I.T. makes no representations about the suitability of * this software for any purpose. It is provided "as is" without express * or implied warranty. */ #include "ccs_common.h" #include "ccs_os_notify.h" struct ccs_ccache_d { cci_identifier_t identifier; ccs_lock_state_t lock_state; cc_uint32 creds_version; char *name; char *v5_principal; cc_time_t last_default_time; cc_time_t last_changed_time; cc_uint32 kdc_time_offset_v5_valid; cc_time_t kdc_time_offset_v5; ccs_credentials_list_t credentials; ccs_callback_array_t change_callbacks; }; struct ccs_ccache_d ccs_ccache_initializer = { NULL, NULL, 0, NULL, NULL, 0, 0, 0, 0, NULL, NULL }; /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_new (ccs_ccache_t *out_ccache, cc_uint32 in_creds_version, const char *in_name, const char *in_principal, ccs_ccache_list_t io_ccache_list) { cc_int32 err = ccNoError; ccs_ccache_t ccache = NULL; if (!out_ccache ) { err = cci_check_error (ccErrBadParam); } if (!in_name ) { err = cci_check_error (ccErrBadParam); } if (!in_principal) { err = cci_check_error (ccErrBadParam); } if (!err) { ccache = malloc (sizeof (*ccache)); if (ccache) { *ccache = ccs_ccache_initializer; } else { err = cci_check_error (ccErrNoMem); } } if (!err) { err = ccs_server_new_identifier (&ccache->identifier); } if (!err) { err = ccs_lock_state_new (&ccache->lock_state, ccErrInvalidCCache, ccErrCCacheLocked, ccErrCCacheUnlocked); } if (!err) { ccache->name = strdup (in_name); if (!ccache->name) { err = cci_check_error (ccErrNoMem); } } if (!err) { ccache->creds_version = in_creds_version; if (ccache->creds_version == cc_credentials_v5) { ccache->v5_principal = strdup (in_principal); if (!ccache->v5_principal) { err = cci_check_error (ccErrNoMem); } } else { err = cci_check_error (ccErrBadCredentialsVersion); } } if (!err) { err = ccs_credentials_list_new (&ccache->credentials); } if (!err) { err = ccs_callback_array_new (&ccache->change_callbacks); } if (!err) { cc_uint64 now = time (NULL); cc_uint64 count = 0; err = ccs_ccache_list_count (io_ccache_list, &count); if (!err) { /* first cache is default */ ccache->last_default_time = (count == 0) ? now : 0; cci_debug_printf ("%s ccache->last_default_time is %d.", __FUNCTION__, ccache->last_default_time); ccache->last_changed_time = now; } } if (!err) { /* Add self to the list of ccaches */ err = ccs_ccache_list_add (io_ccache_list, ccache); } if (!err) { *out_ccache = ccache; ccache = NULL; } ccs_ccache_release (ccache); return cci_check_error (err); } /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_reset (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, cc_uint32 in_creds_version, const char *in_principal) { cc_int32 err = ccNoError; char *v5_principal = NULL; ccs_credentials_list_t credentials = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_principal ) { err = cci_check_error (ccErrBadParam); } if (!err) { io_ccache->creds_version = in_creds_version; if (io_ccache->creds_version == cc_credentials_v5) { v5_principal = strdup (in_principal); if (!v5_principal) { err = cci_check_error (ccErrNoMem); } } else { err = cci_check_error (ccErrBadCredentialsVersion); } } if (!err) { err = ccs_credentials_list_new (&credentials); } if (!err) { io_ccache->kdc_time_offset_v5 = 0; io_ccache->kdc_time_offset_v5_valid = 0; if (io_ccache->v5_principal) { free (io_ccache->v5_principal); } io_ccache->v5_principal = v5_principal; v5_principal = NULL; /* take ownership */ ccs_credentials_list_release (io_ccache->credentials); io_ccache->credentials = credentials; credentials = NULL; /* take ownership */ err = ccs_ccache_changed (io_ccache, io_cache_collection); } free (v5_principal); ccs_credentials_list_release (credentials); return cci_check_error (err); } /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_swap_contents (ccs_ccache_t io_source_ccache, ccs_ccache_t io_destination_ccache, ccs_cache_collection_t io_cache_collection) { cc_int32 err = ccNoError; if (!io_source_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_destination_ccache) { err = cci_check_error (ccErrBadParam); } if (!err) { struct ccs_ccache_d temp_ccache = *io_destination_ccache; /* swap everything */ *io_destination_ccache = *io_source_ccache; *io_source_ccache = temp_ccache; /* swap back the name and identifier */ io_source_ccache->identifier = io_destination_ccache->identifier; io_destination_ccache->identifier = temp_ccache.identifier; io_source_ccache->name = io_destination_ccache->name; io_destination_ccache->name = temp_ccache.name; } if (!err) { err = ccs_ccache_changed (io_source_ccache, io_cache_collection); } if (!err) { err = ccs_ccache_changed (io_destination_ccache, io_cache_collection); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_release (ccs_ccache_t io_ccache) { cc_int32 err = ccNoError; if (!err && io_ccache) { cci_identifier_release (io_ccache->identifier); ccs_lock_state_release (io_ccache->lock_state); free (io_ccache->name); free (io_ccache->v5_principal); ccs_credentials_list_release (io_ccache->credentials); ccs_callback_array_release (io_ccache->change_callbacks); free (io_ccache); } return cci_check_error (err); } #ifdef TARGET_OS_MAC #pragma mark - #endif /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_compare_identifier (ccs_ccache_t in_ccache, cci_identifier_t in_identifier, cc_uint32 *out_equal) { cc_int32 err = ccNoError; if (!in_ccache ) { err = cci_check_error (ccErrBadParam); } if (!in_identifier) { err = cci_check_error (ccErrBadParam); } if (!out_equal ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = cci_identifier_compare (in_ccache->identifier, in_identifier, out_equal); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_compare_name (ccs_ccache_t in_ccache, const char *in_name, cc_uint32 *out_equal) { cc_int32 err = ccNoError; if (!in_ccache) { err = cci_check_error (ccErrBadParam); } if (!in_name ) { err = cci_check_error (ccErrBadParam); } if (!out_equal) { err = cci_check_error (ccErrBadParam); } if (!err) { *out_equal = (strcmp (in_ccache->name, in_name) == 0); } return cci_check_error (err); } #ifdef TARGET_OS_MAC #pragma mark - #endif /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_changed (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection) { cc_int32 err = ccNoError; k5_ipc_stream reply_data = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!err) { cc_time_t now = time (NULL); if (io_ccache->last_changed_time < now) { io_ccache->last_changed_time = now; } else { io_ccache->last_changed_time++; } } if (!err) { err = ccs_cache_collection_changed (io_cache_collection); } if (!err) { err = krb5int_ipc_stream_new (&reply_data); } if (!err) { err = krb5int_ipc_stream_write_time (reply_data, io_ccache->last_changed_time); } if (!err) { /* Loop over callbacks sending messages to them */ cc_uint64 i; cc_uint64 count = ccs_callback_array_count (io_ccache->change_callbacks); for (i = 0; !err && i < count; i++) { ccs_callback_t callback = ccs_callback_array_object_at_index (io_ccache->change_callbacks, i); err = ccs_callback_reply_to_client (callback, reply_data); if (!err) { cci_debug_printf ("%s: Removing callback reference %p.", __FUNCTION__, callback); err = ccs_callback_array_remove (io_ccache->change_callbacks, i); break; } } } if (!err) { err = ccs_os_notify_ccache_changed (io_cache_collection, io_ccache->name); } krb5int_ipc_stream_release (reply_data); return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_invalidate_change_callback (ccs_callback_owner_t io_ccache, ccs_callback_t in_callback) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!in_callback) { err = cci_check_error (ccErrBadParam); } if (!err) { /* Remove callback */ ccs_ccache_t ccache = (ccs_ccache_t) io_ccache; cc_uint64 i; cc_uint64 count = ccs_callback_array_count (ccache->change_callbacks); for (i = 0; !err && i < count; i++) { ccs_callback_t callback = ccs_callback_array_object_at_index (ccache->change_callbacks, i); if (callback == in_callback) { cci_debug_printf ("%s: Removing callback reference %p.", __FUNCTION__, callback); err = ccs_callback_array_remove (ccache->change_callbacks, i); break; } } } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_notify_default_state_changed (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, cc_uint32 in_new_default_state) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!err && in_new_default_state) { cc_time_t now = time (NULL); if (io_ccache->last_default_time < now) { io_ccache->last_default_time = now; } else { io_ccache->last_default_time++; } } if (!err) { err = ccs_ccache_changed (io_ccache, io_cache_collection); } return cci_check_error (err); } #ifdef TARGET_OS_MAC #pragma mark - #endif /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_find_credentials_iterator (ccs_ccache_t in_ccache, cci_identifier_t in_identifier, ccs_credentials_iterator_t *out_credentials_iterator) { cc_int32 err = ccNoError; if (!in_ccache ) { err = cci_check_error (ccErrBadParam); } if (!in_identifier ) { err = cci_check_error (ccErrBadParam); } if (!out_credentials_iterator) { err = cci_check_error (ccErrBadParam); } if (!err) { err = ccs_credentials_list_find_iterator (in_ccache->credentials, in_identifier, out_credentials_iterator); } // Don't report ccErrInvalidCredentials to the log file. Non-fatal. return (err == ccErrInvalidCredentials) ? err : cci_check_error (err); } #ifdef TARGET_OS_MAC #pragma mark - #endif /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_write (ccs_ccache_t in_ccache, k5_ipc_stream io_stream) { cc_int32 err = ccNoError; if (!in_ccache) { err = cci_check_error (ccErrBadParam); } if (!io_stream) { err = cci_check_error (ccErrBadParam); } if (!err) { err = cci_identifier_write (in_ccache->identifier, io_stream); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_write_name (ccs_ccache_t in_ccache, k5_ipc_stream io_stream) { cc_int32 err = ccNoError; if (!in_ccache) { err = cci_check_error (ccErrBadParam); } if (!io_stream) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_write_string (io_stream, in_ccache->name); } return cci_check_error (err); } #ifdef TARGET_OS_MAC #pragma mark - #pragma mark -- IPC Messages -- #endif /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_destroy (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = ccs_cache_collection_destroy_ccache (io_cache_collection, io_ccache->identifier); } if (!err) { /* ccache has been destroyed so just mark the cache collection */ err = ccs_cache_collection_changed (io_cache_collection); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_set_default (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = ccs_cache_collection_set_default_ccache (io_cache_collection, io_ccache->identifier); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_get_credentials_version (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_write_uint32 (io_reply_data, io_ccache->creds_version); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_get_name (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_write_string (io_reply_data, io_ccache->name); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_get_principal (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cc_uint32 version = 0; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &version); } if (!err) { if (version == cc_credentials_v5) { err = krb5int_ipc_stream_write_string (io_reply_data, io_ccache->v5_principal); } else { err = cci_check_error (ccErrBadCredentialsVersion); } } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_set_principal (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cc_uint32 version = 0; char *principal = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &version); } if (!err) { err = krb5int_ipc_stream_read_string (in_request_data, &principal); } if (!err) { /* reset KDC time offsets because they are per-KDC */ if (version == cc_credentials_v5) { io_ccache->kdc_time_offset_v5 = 0; io_ccache->kdc_time_offset_v5_valid = 0; if (io_ccache->v5_principal) { free (io_ccache->v5_principal); } io_ccache->v5_principal = principal; principal = NULL; /* take ownership */ } else { err = cci_check_error (ccErrBadCredentialsVersion); } } if (!err) { io_ccache->creds_version |= version; err = ccs_ccache_changed (io_ccache, io_cache_collection); } krb5int_ipc_stream_free_string (principal); return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_store_credentials (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; ccs_credentials_t credentials = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = ccs_credentials_new (&credentials, in_request_data, io_ccache->creds_version, io_ccache->credentials); } if (!err) { err = ccs_ccache_changed (io_ccache, io_cache_collection); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_remove_credentials (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cci_identifier_t credentials_identifier = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = cci_identifier_read (&credentials_identifier, in_request_data); } if (!err) { err = ccs_credentials_list_remove (io_ccache->credentials, credentials_identifier); } if (!err) { err = ccs_ccache_changed (io_ccache, io_cache_collection); } cci_identifier_release (credentials_identifier); return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_new_credentials_iterator (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, ccs_pipe_t in_client_pipe, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; ccs_credentials_iterator_t credentials_iterator = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = ccs_credentials_list_new_iterator (io_ccache->credentials, in_client_pipe, &credentials_iterator); } if (!err) { err = ccs_credentials_list_iterator_write (credentials_iterator, io_reply_data); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_move (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cci_identifier_t source_identifier = NULL; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { /* Note: message is sent as the destination ccache to avoid */ /* extra work on the server when deleting it the source ccache. */ err = cci_identifier_read (&source_identifier, in_request_data); } if (!err) { err = ccs_ccache_collection_move_ccache (io_cache_collection, source_identifier, io_ccache); } if (!err) { err = ccs_ccache_changed (io_ccache, io_cache_collection); } cci_identifier_release (source_identifier); return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_lock (ccs_pipe_t in_client_pipe, ccs_pipe_t in_reply_pipe, ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, cc_uint32 *out_will_block, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cc_uint32 lock_type; cc_uint32 block; if (!ccs_pipe_valid (in_client_pipe)) { err = cci_check_error (ccErrBadParam); } if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection ) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!out_will_block ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &lock_type); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &block); } if (!err) { err = ccs_lock_state_add (io_ccache->lock_state, in_client_pipe, in_reply_pipe, lock_type, block, out_will_block); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_unlock (ccs_pipe_t in_client_pipe, ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!ccs_pipe_valid (in_client_pipe)) { err = cci_check_error (ccErrBadParam); } if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection ) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = ccs_lock_state_remove (io_ccache->lock_state, in_client_pipe); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_get_last_default_time (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err && io_ccache->last_default_time == 0) { err = cci_check_error (ccErrNeverDefault); } if (!err) { err = krb5int_ipc_stream_write_time (io_reply_data, io_ccache->last_default_time); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_get_change_time (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_write_time (io_reply_data, io_ccache->last_changed_time); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_wait_for_change (ccs_pipe_t in_client_pipe, ccs_pipe_t in_reply_pipe, ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data, cc_uint32 *out_will_block) { cc_int32 err = ccNoError; cc_time_t last_wait_for_change_time = 0; cc_uint32 will_block = 0; if (!ccs_pipe_valid (in_client_pipe)) { err = cci_check_error (ccErrBadParam); } if (!ccs_pipe_valid (in_reply_pipe )) { err = cci_check_error (ccErrBadParam); } if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection ) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!out_will_block ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_time (in_request_data, &last_wait_for_change_time); } if (!err) { if (last_wait_for_change_time < io_ccache->last_changed_time) { cci_debug_printf ("%s returning immediately", __FUNCTION__); err = krb5int_ipc_stream_write_time (io_reply_data, io_ccache->last_changed_time); } else { ccs_callback_t callback = NULL; err = ccs_callback_new (&callback, ccErrInvalidCCache, in_client_pipe, in_reply_pipe, (ccs_callback_owner_t) io_ccache, ccs_ccache_invalidate_change_callback); if (!err) { err = ccs_callback_array_insert (io_ccache->change_callbacks, callback, ccs_callback_array_count (io_ccache->change_callbacks)); if (!err) { callback = NULL; /* take ownership */ } cci_debug_printf ("%s blocking", __FUNCTION__); will_block = 1; } ccs_callback_release (callback); } } if (!err) { *out_will_block = will_block; } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_get_kdc_time_offset (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cc_uint32 cred_vers = 0; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &cred_vers); } if (!err) { if (cred_vers == cc_credentials_v5) { if (io_ccache->kdc_time_offset_v5_valid) { err = krb5int_ipc_stream_write_time (io_reply_data, io_ccache->kdc_time_offset_v5); } else { err = cci_check_error (ccErrTimeOffsetNotSet); } } else { err = cci_check_error (ccErrBadCredentialsVersion); } } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_set_kdc_time_offset (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cc_uint32 cred_vers = 0; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &cred_vers); } if (!err) { if (cred_vers == cc_credentials_v5) { err = krb5int_ipc_stream_read_time (in_request_data, &io_ccache->kdc_time_offset_v5); if (!err) { io_ccache->kdc_time_offset_v5_valid = 1; } } else { err = cci_check_error (ccErrBadCredentialsVersion); } } if (!err) { err = ccs_ccache_changed (io_ccache, io_cache_collection); } return cci_check_error (err); } /* ------------------------------------------------------------------------ */ static cc_int32 ccs_ccache_clear_kdc_time_offset (ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, k5_ipc_stream in_request_data, k5_ipc_stream io_reply_data) { cc_int32 err = ccNoError; cc_uint32 cred_vers = 0; if (!io_ccache ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!io_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_read_uint32 (in_request_data, &cred_vers); } if (!err) { if (cred_vers == cc_credentials_v5) { io_ccache->kdc_time_offset_v5 = 0; io_ccache->kdc_time_offset_v5_valid = 0; } else { err = cci_check_error (ccErrBadCredentialsVersion); } } if (!err) { err = ccs_ccache_changed (io_ccache, io_cache_collection); } return cci_check_error (err); } #ifdef TARGET_OS_MAC #pragma mark - #endif /* ------------------------------------------------------------------------ */ cc_int32 ccs_ccache_handle_message (ccs_pipe_t in_client_pipe, ccs_pipe_t in_reply_pipe, ccs_ccache_t io_ccache, ccs_cache_collection_t io_cache_collection, enum cci_msg_id_t in_request_name, k5_ipc_stream in_request_data, cc_uint32 *out_will_block, k5_ipc_stream *out_reply_data) { cc_int32 err = ccNoError; cc_uint32 will_block = 0; k5_ipc_stream reply_data = NULL; if (!ccs_pipe_valid (in_client_pipe)) { err = cci_check_error (ccErrBadParam); } if (!ccs_pipe_valid (in_reply_pipe) ) { err = cci_check_error (ccErrBadParam); } if (!io_cache_collection ) { err = cci_check_error (ccErrBadParam); } if (!in_request_data ) { err = cci_check_error (ccErrBadParam); } if (!out_will_block ) { err = cci_check_error (ccErrBadParam); } if (!out_reply_data ) { err = cci_check_error (ccErrBadParam); } if (!err) { err = krb5int_ipc_stream_new (&reply_data); } if (!err) { if (in_request_name == cci_ccache_destroy_msg_id) { err = ccs_ccache_destroy (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_set_default_msg_id) { err = ccs_ccache_set_default (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_get_credentials_version_msg_id) { err = ccs_ccache_get_credentials_version (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_get_name_msg_id) { err = ccs_ccache_get_name (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_get_principal_msg_id) { err = ccs_ccache_get_principal (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_set_principal_msg_id) { err = ccs_ccache_set_principal (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_store_credentials_msg_id) { err = ccs_ccache_store_credentials (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_remove_credentials_msg_id) { err = ccs_ccache_remove_credentials (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_new_credentials_iterator_msg_id) { err = ccs_ccache_new_credentials_iterator (io_ccache, io_cache_collection, in_client_pipe, in_request_data, reply_data); } else if (in_request_name == cci_ccache_move_msg_id) { err = ccs_ccache_move (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_lock_msg_id) { err = ccs_ccache_lock (in_client_pipe, in_reply_pipe, io_ccache, io_cache_collection, in_request_data, &will_block, reply_data); } else if (in_request_name == cci_ccache_unlock_msg_id) { err = ccs_ccache_unlock (in_client_pipe, io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_get_last_default_time_msg_id) { err = ccs_ccache_get_last_default_time (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_get_change_time_msg_id) { err = ccs_ccache_get_change_time (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_wait_for_change_msg_id) { err = ccs_ccache_wait_for_change (in_client_pipe, in_reply_pipe, io_ccache, io_cache_collection, in_request_data, reply_data, &will_block); } else if (in_request_name == cci_ccache_get_kdc_time_offset_msg_id) { err = ccs_ccache_get_kdc_time_offset (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_set_kdc_time_offset_msg_id) { err = ccs_ccache_set_kdc_time_offset (io_ccache, io_cache_collection, in_request_data, reply_data); } else if (in_request_name == cci_ccache_clear_kdc_time_offset_msg_id) { err = ccs_ccache_clear_kdc_time_offset (io_ccache, io_cache_collection, in_request_data, reply_data); } else { err = ccErrBadInternalMessage; } } if (!err) { *out_will_block = will_block; if (!will_block) { *out_reply_data = reply_data; reply_data = NULL; /* take ownership */ } else { *out_reply_data = NULL; } } krb5int_ipc_stream_release (reply_data); return cci_check_error (err); }