+++ /dev/null
-/*
- * Copyright (c) 2014 Apple Inc. All Rights Reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-#include <stdbool.h>
-#include <sys/queue.h>
-#include <syslog.h>
-
-#include <CoreFoundation/CoreFoundation.h>
-#include <Security/SecItem.h>
-#include <Security/SecBasePriv.h>
-#include <Security/SecInternal.h>
-#include <Security/SecuritydXPC.h>
-
-#include <utilities/debugging.h>
-#include <utilities/SecCFError.h>
-#include <utilities/SecXPCError.h>
-#include <utilities/SecCFWrappers.h>
-#include <utilities/SecDispatchRelease.h>
-#include <utilities/SecDb.h> // TODO Fixme this gets us SecError().
-#include "swcagent_client.h"
-
-#include <xpc/private.h>
-
-
-CFStringRef sSWCAXPCErrorDomain = CFSTR("com.apple.security.swcagent");
-CFStringRef sSWCASecAttrServer = CFSTR("srvr");
-
-//
-// MARK: XPC IPC.
-//
-
-static xpc_connection_t swca_create_connection(const char *name) {
- if (!name)
- name = kSWCAXPCServiceName;
- xpc_connection_t connection;
- connection = xpc_connection_create_mach_service(name, NULL, 0);
- xpc_connection_set_event_handler(connection, ^(xpc_object_t event) {
- const char *description = xpc_dictionary_get_string(event, XPC_ERROR_KEY_DESCRIPTION);
- secnotice("xpc", "got event: %s", description);
- });
- xpc_connection_resume(connection);
- return connection;
-}
-
-static xpc_connection_t sSWCAConnection;
-
-static xpc_connection_t swca_connection(void) {
- static dispatch_once_t once;
- dispatch_once(&once, ^{
- sSWCAConnection = swca_create_connection(NULL);
- });
- return sSWCAConnection;
-}
-
-xpc_object_t
-swca_message_with_reply_sync(xpc_object_t message, CFErrorRef *error)
-{
- xpc_object_t reply = NULL;
- xpc_connection_t connection = swca_connection();
-
- const int max_tries = 4; // Per <rdar://problem/17829836> N61/12A342: Audio Playback... for why this needs to be at least 3, so we made it 4.
-
- unsigned int tries_left = max_tries;
- do {
- if (reply) xpc_release(reply);
- reply = xpc_connection_send_message_with_reply_sync(connection, message);
- } while (reply == XPC_ERROR_CONNECTION_INTERRUPTED && --tries_left > 0);
-
- if (xpc_get_type(reply) == XPC_TYPE_ERROR) {
- CFIndex code = 0;
- if (reply == XPC_ERROR_CONNECTION_INTERRUPTED || reply == XPC_ERROR_CONNECTION_INVALID)
- code = kSecXPCErrorConnectionFailed;
- else if (reply == XPC_ERROR_TERMINATION_IMMINENT)
- code = kSecXPCErrorUnknown;
- else
- code = kSecXPCErrorUnknown;
-
- char *conn_desc = xpc_copy_description(connection);
- const char *description = xpc_dictionary_get_string(reply, XPC_ERROR_KEY_DESCRIPTION);
- SecCFCreateErrorWithFormat(code, sSWCAXPCErrorDomain, NULL, error, NULL, CFSTR("%s: %s"), conn_desc, description);
- free(conn_desc);
- xpc_release(reply);
- reply = NULL;
- }
-
- return reply;
-}
-
-xpc_object_t swca_create_message(enum SWCAXPCOperation op, CFErrorRef* error)
-{
- xpc_object_t message = xpc_dictionary_create(NULL, NULL, 0);
- if (message) {
- xpc_dictionary_set_uint64(message, kSecXPCKeyOperation, op);
- } else {
- SecCFCreateError(kSecXPCErrorConnectionFailed, sSWCAXPCErrorDomain,
- CFSTR("xpc_dictionary_create returned NULL"), NULL, error);
- }
- return message;
-}
-
-// Return true if there is no error in message, return false and set *error if there is.
-bool swca_message_no_error(xpc_object_t message, CFErrorRef *error) {
- xpc_object_t xpc_error = xpc_dictionary_get_value(message, kSecXPCKeyError);
- if (xpc_error == NULL)
- return true;
-
- if (error) {
- *error = SecCreateCFErrorWithXPCObject(xpc_error);
- }
- return false;
-}
-
-// Return int value of message reply (or -1 if error)
-long swca_message_response(xpc_object_t replyMessage, CFErrorRef *error) {
- int32_t value = -1;
- CFTypeRef result = NULL;
- if (!swca_message_no_error(replyMessage, error) ||
- !SecXPCDictionaryCopyPListOptional(replyMessage, kSecXPCKeyResult, &result, error) ||
- !result) {
- return value;
- }
- CFTypeID typeID = CFGetTypeID(result);
- if (typeID == CFBooleanGetTypeID()) {
- value = (CFEqual((CFBooleanRef)result, kCFBooleanTrue)) ? 1 : 0;
- }
- else if (typeID == CFNumberGetTypeID()) {
- if (!CFNumberGetValue((CFNumberRef)result, kCFNumberSInt32Type, &value)) {
- value = -1;
- }
- }
- CFReleaseSafe(result);
- return value;
-}
-
-bool swca_autofill_enabled(const audit_token_t *auditToken)
-{
- bool result = false;
- CFErrorRef error = NULL;
- xpc_object_t message = swca_create_message(swca_enabled_request_id, &error);
- if (message) {
- xpc_dictionary_set_data(message, kSecXPCKeyClientToken, auditToken, sizeof(audit_token_t));
- xpc_object_t reply = swca_message_with_reply_sync(message, &error);
- if (reply) {
- long value = swca_message_response(reply, &error);
- result = (value > 0);
- xpc_release(reply);
- }
- xpc_release(message);
- }
- CFReleaseSafe(error);
- return result;
-}
-
-bool swca_confirm_operation(enum SWCAXPCOperation op,
- const audit_token_t *auditToken,
- CFTypeRef query,
- CFErrorRef *error,
- void (^add_negative_entry)(CFStringRef fqdn))
-{
- bool result = false;
- xpc_object_t message = swca_create_message(op, error);
- if (message) {
- xpc_dictionary_set_data(message, kSecXPCKeyClientToken, auditToken, sizeof(audit_token_t));
- if (SecXPCDictionarySetPList(message, kSecXPCKeyQuery, query, error)) {
- xpc_object_t reply = swca_message_with_reply_sync(message, error);
- if (reply) {
- long value = swca_message_response(reply, error);
- //
- // possible values (see CFUserNotification.h):
- // unable to get message response = -1
- // kCFUserNotificationDefaultResponse = 0 "Don't Allow" (i.e. permanently)
- // kCFUserNotificationAlternateResponse = 1 "OK"
- // kCFUserNotificationOtherResponse = 2 (no longer used)
- //
- result = (value == 1);
- if (value == 0 && add_negative_entry) {
- CFStringRef fqdn = CFDictionaryGetValue(query, sSWCASecAttrServer);
- add_negative_entry(fqdn);
- }
- xpc_release(reply);
- }
- }
- xpc_release(message);
- }
- return result;
-}
-
-// Return retained dictionary value of message reply (or NULL if error)
-CFTypeRef swca_message_copy_response(xpc_object_t replyMessage, CFErrorRef *error) {
- CFTypeRef result = NULL;
- if (!swca_message_no_error(replyMessage, error) ||
- !SecXPCDictionaryCopyPListOptional(replyMessage, kSecXPCKeyResult, &result, error)) {
- CFReleaseNull(result);
- }
- return result;
-}
-
-CFDictionaryRef swca_copy_selected_dictionary(enum SWCAXPCOperation op,
- const audit_token_t *auditToken,
- CFTypeRef items, // array of dictionaries
- CFErrorRef *error)
-{
- CFDictionaryRef result = NULL;
- xpc_object_t message = swca_create_message(op, error);
- if (message) {
- xpc_dictionary_set_data(message, kSecXPCKeyClientToken, auditToken, sizeof(audit_token_t));
- if (SecXPCDictionarySetPList(message, kSecXPCKeyQuery, items, error)) {
- xpc_object_t reply = swca_message_with_reply_sync(message, error);
- if (reply) {
- result = (CFDictionaryRef) swca_message_copy_response(reply, error);
- if (!(result && CFGetTypeID(result) == CFDictionaryGetTypeID())) {
- CFReleaseNull(result);
- }
- xpc_release(reply);
- }
- }
- xpc_release(message);
- }
- return result;
-}
-
-// Return retained array value of message reply (or NULL if error)
-CFArrayRef swca_copy_pairs(enum SWCAXPCOperation op,
- const audit_token_t *auditToken,
- CFErrorRef *error)
-{
- CFArrayRef result = NULL;
- xpc_object_t message = swca_create_message(op, error);
- if (message) {
- xpc_dictionary_set_data(message, kSecXPCKeyClientToken, auditToken, sizeof(audit_token_t));
- xpc_object_t reply = swca_message_with_reply_sync(message, error);
- if (reply) {
- result = (CFArrayRef) swca_message_copy_response(reply, error);
- if (!(result && CFGetTypeID(result) == CFArrayGetTypeID())) {
- CFReleaseNull(result);
- }
- xpc_release(reply);
- }
- xpc_release(message);
- }
- return result;
-}
-
-bool swca_set_selection(enum SWCAXPCOperation op,
- const audit_token_t *auditToken,
- CFTypeRef dictionary,
- CFErrorRef *error)
-{
- bool result = false;
- xpc_object_t message = swca_create_message(op, error);
- if (message) {
- xpc_dictionary_set_data(message, kSecXPCKeyClientToken, auditToken, sizeof(audit_token_t));
- if (SecXPCDictionarySetPList(message, kSecXPCKeyQuery, dictionary, error)) {
- xpc_object_t reply = swca_message_with_reply_sync(message, error);
- if (reply) {
- long value = swca_message_response(reply, error);
- if (value != 0) {
- result = true;
- };
- xpc_release(reply);
- }
- }
- xpc_release(message);
- }
- return result;
-}
-
-bool swca_send_sync_and_do(enum SWCAXPCOperation op, CFErrorRef *error,
- bool (^add_to_message)(xpc_object_t message, CFErrorRef* error),
- bool (^handle_response)(xpc_object_t response, CFErrorRef* error)) {
- xpc_object_t message = swca_create_message(op, error);
- bool ok = false;
- if (message) {
- if (!add_to_message || add_to_message(message, error)) {
- xpc_object_t response = swca_message_with_reply_sync(message, error);
- if (response) {
- if (swca_message_no_error(response, error)) {
- ok = (!handle_response || handle_response(response, error));
- }
- xpc_release(response);
- }
- }
- xpc_release(message);
- }
-
- return ok;
-}
-
-
-/* vi:set ts=4 sw=4 et: */
projects / apple / security.git / blobdiff