Annotation of embedaddon/strongswan/src/conftest/hooks/add_payload.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2010 Martin Willi
! 3: * Copyright (C) 2010 revosec AG
! 4: *
! 5: * This program is free software; you can redistribute it and/or modify it
! 6: * under the terms of the GNU General Public License as published by the
! 7: * Free Software Foundation; either version 2 of the License, or (at your
! 8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
! 9: *
! 10: * This program is distributed in the hope that it will be useful, but
! 11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
! 13: * for more details.
! 14: */
! 15:
! 16: #include "hook.h"
! 17:
! 18: #include <encoding/payloads/unknown_payload.h>
! 19:
! 20: typedef struct private_add_payload_t private_add_payload_t;
! 21:
! 22: /**
! 23: * Private data of an add_payload_t object.
! 24: */
! 25: struct private_add_payload_t {
! 26:
! 27: /**
! 28: * Implements the hook_t interface.
! 29: */
! 30: hook_t hook;
! 31:
! 32: /**
! 33: * Alter requests or responses?
! 34: */
! 35: bool req;
! 36:
! 37: /**
! 38: * ID of message to alter.
! 39: */
! 40: int id;
! 41:
! 42: /**
! 43: * Payload type
! 44: */
! 45: char *type;
! 46:
! 47: /**
! 48: * Payload data
! 49: */
! 50: char *data;
! 51:
! 52: /**
! 53: * Set critical bit of the payload
! 54: */
! 55: bool critical;
! 56:
! 57: /**
! 58: * True to replace existing payload of this type
! 59: */
! 60: bool replace;
! 61: };
! 62:
! 63: METHOD(listener_t, message, bool,
! 64: private_add_payload_t *this, ike_sa_t *ike_sa, message_t *message,
! 65: bool incoming, bool plain)
! 66: {
! 67: if (!incoming && plain &&
! 68: message->get_request(message) == this->req &&
! 69: message->get_message_id(message) == this->id)
! 70: {
! 71: unknown_payload_t *unknown;
! 72: payload_t *payload;
! 73: enumerator_t *enumerator;
! 74: chunk_t data = chunk_empty;
! 75: payload_type_t type;
! 76:
! 77: type = atoi(this->type);
! 78: if (!type)
! 79: {
! 80: if (!enum_from_name(payload_type_short_names, this->type, &type))
! 81: {
! 82: DBG1(DBG_CFG, "unknown payload: '%s', skipped", this->type);
! 83: return TRUE;
! 84: }
! 85: }
! 86: if (this->replace)
! 87: {
! 88: enumerator = message->create_payload_enumerator(message);
! 89: while (enumerator->enumerate(enumerator, &payload))
! 90: {
! 91: if (payload->get_type(payload) == type)
! 92: {
! 93: message->remove_payload_at(message, enumerator);
! 94: payload->destroy(payload);
! 95: break;
! 96: }
! 97: }
! 98: enumerator->destroy(enumerator);
! 99: }
! 100: if (strncaseeq(this->data, "0x", 2))
! 101: {
! 102: data = chunk_skip(chunk_create(this->data, strlen(this->data)), 2);
! 103: data = chunk_from_hex(data, NULL);
! 104: }
! 105: else if (strlen(this->data))
! 106: {
! 107: data = chunk_clone(chunk_create(this->data, strlen(this->data)));
! 108: }
! 109: unknown = unknown_payload_create_data(type, this->critical, data);
! 110: message->add_payload(message, &unknown->payload_interface);
! 111: }
! 112: return TRUE;
! 113: }
! 114:
! 115: METHOD(hook_t, destroy, void,
! 116: private_add_payload_t *this)
! 117: {
! 118: free(this);
! 119: }
! 120:
! 121: /**
! 122: * Create the IKE_AUTH fill hook
! 123: */
! 124: hook_t *add_payload_hook_create(char *name)
! 125: {
! 126: private_add_payload_t *this;
! 127:
! 128: INIT(this,
! 129: .hook = {
! 130: .listener = {
! 131: .message = _message,
! 132: },
! 133: .destroy = _destroy,
! 134: },
! 135: .req = conftest->test->get_bool(conftest->test,
! 136: "hooks.%s.request", TRUE, name),
! 137: .id = conftest->test->get_int(conftest->test,
! 138: "hooks.%s.id", 0, name),
! 139: .type = conftest->test->get_str(conftest->test,
! 140: "hooks.%s.type", "", name),
! 141: .data = conftest->test->get_str(conftest->test,
! 142: "hooks.%s.data", "", name),
! 143: .critical = conftest->test->get_bool(conftest->test,
! 144: "hooks.%s.critical", FALSE, name),
! 145: .replace = conftest->test->get_bool(conftest->test,
! 146: "hooks.%s.replace", FALSE, name),
! 147: );
! 148:
! 149: return &this->hook;
! 150: }
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