diff options
Diffstat (limited to 'src/charon/encoding/payloads/delete_payload.c')
-rw-r--r-- | src/charon/encoding/payloads/delete_payload.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/src/charon/encoding/payloads/delete_payload.c b/src/charon/encoding/payloads/delete_payload.c deleted file mode 100644 index 97b4743b2..000000000 --- a/src/charon/encoding/payloads/delete_payload.c +++ /dev/null @@ -1,292 +0,0 @@ -/* - * Copyright (C) 2005-2006 Martin Willi - * Copyright (C) 2005 Jan Hutter - * Hochschule fuer Technik Rapperswil - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - */ - -#include <stddef.h> - -#include "delete_payload.h" - - -typedef struct private_delete_payload_t private_delete_payload_t; - -/** - * Private data of an delete_payload_t object. - * - */ -struct private_delete_payload_t { - /** - * Public delete_payload_t interface. - */ - delete_payload_t public; - - /** - * Next payload type. - */ - u_int8_t next_payload; - - /** - * Critical flag. - */ - bool critical; - - /** - * Length of this payload. - */ - u_int16_t payload_length; - - /** - * Protocol ID. - */ - u_int8_t protocol_id; - - /** - * SPI Size. - */ - u_int8_t spi_size; - - /** - * Number of SPI's. - */ - u_int16_t spi_count; - - /** - * The contained SPI's. - */ - chunk_t spis; - - /** - * List containing u_int32_t spis - */ - linked_list_t *spi_list; -}; - -/** - * Encoding rules to parse or generate a DELETE payload - * - * The defined offsets are the positions in a object of type - * private_delete_payload_t. - * - */ -encoding_rule_t delete_payload_encodings[] = { - /* 1 Byte next payload type, stored in the field next_payload */ - { U_INT_8, offsetof(private_delete_payload_t, next_payload) }, - /* the critical bit */ - { FLAG, offsetof(private_delete_payload_t, critical) }, - /* 7 Bit reserved bits, nowhere stored */ - { RESERVED_BIT, 0 }, - { RESERVED_BIT, 0 }, - { RESERVED_BIT, 0 }, - { RESERVED_BIT, 0 }, - { RESERVED_BIT, 0 }, - { RESERVED_BIT, 0 }, - { RESERVED_BIT, 0 }, - /* Length of the whole payload*/ - { PAYLOAD_LENGTH, offsetof(private_delete_payload_t, payload_length)}, - { U_INT_8, offsetof(private_delete_payload_t, protocol_id) }, - { U_INT_8, offsetof(private_delete_payload_t, spi_size) }, - { U_INT_16, offsetof(private_delete_payload_t, spi_count) }, - /* some delete data bytes, length is defined in PAYLOAD_LENGTH */ - { SPIS, offsetof(private_delete_payload_t, spis) } -}; - -/* - 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! Next Payload !C! RESERVED ! Payload Length ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! Protocol ID ! SPI Size ! # of SPIs ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! ! - ~ Security Parameter Index(es) (SPI) ~ - ! ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -*/ - -/** - * Implementation of payload_t.verify. - */ -static status_t verify(private_delete_payload_t *this) -{ - switch (this->protocol_id) - { - case PROTO_AH: - case PROTO_ESP: - if (this->spi_size != 4) - { - return FAILED; - } - break; - case PROTO_IKE: - case 0: - /* IKE deletion has no spi assigned! */ - if (this->spi_size != 0) - { - return FAILED; - } - break; - default: - return FAILED; - } - if (this->spis.len != (this->spi_count * this->spi_size)) - { - return FAILED; - } - return SUCCESS; -} - -/** - * Implementation of delete_payload_t.get_encoding_rules. - */ -static void get_encoding_rules(private_delete_payload_t *this, encoding_rule_t **rules, size_t *rule_count) -{ - *rules = delete_payload_encodings; - *rule_count = sizeof(delete_payload_encodings) / sizeof(encoding_rule_t); -} - -/** - * Implementation of payload_t.get_type. - */ -static payload_type_t get_payload_type(private_delete_payload_t *this) -{ - return DELETE; -} - -/** - * Implementation of payload_t.get_next_type. - */ -static payload_type_t get_next_type(private_delete_payload_t *this) -{ - return (this->next_payload); -} - -/** - * Implementation of payload_t.set_next_type. - */ -static void set_next_type(private_delete_payload_t *this,payload_type_t type) -{ - this->next_payload = type; -} - -/** - * Implementation of payload_t.get_length. - */ -static size_t get_length(private_delete_payload_t *this) -{ - return this->payload_length; -} - -/** - * Implementation of delete_payload_t.get_protocol_id. - */ -static protocol_id_t get_protocol_id (private_delete_payload_t *this) -{ - return (this->protocol_id); -} - -/** - * Implementation of delete_payload_t.add_spi. - */ -static void add_spi(private_delete_payload_t *this, u_int32_t spi) -{ - /* only add SPIs if AH|ESP, ignore others */ - if (this->protocol_id == PROTO_AH || this->protocol_id == PROTO_ESP) - { - this->spi_count += 1; - this->spis.len += this->spi_size; - this->spis.ptr = realloc(this->spis.ptr, this->spis.len); - *(u_int32_t*)(this->spis.ptr + (this->spis.len / this->spi_size - 1)) = spi; - if (this->spi_list) - { - /* reset SPI iterator list */ - this->spi_list->destroy(this->spi_list); - this->spi_list = NULL; - } - } -} - -/** - * Implementation of delete_payload_t.create_spi_iterator. - */ -static iterator_t* create_spi_iterator(private_delete_payload_t *this) -{ - int i; - - if (this->spi_list == NULL) - { - this->spi_list = linked_list_create(); - /* only parse SPIs if AH|ESP */ - if (this->protocol_id == PROTO_AH || this->protocol_id == PROTO_ESP) - { - for (i = 0; i < this->spi_count; i++) - { - this->spi_list->insert_last(this->spi_list, this->spis.ptr + i * - this->spi_size); - } - } - } - return this->spi_list->create_iterator(this->spi_list, TRUE); -} - -/** - * Implementation of payload_t.destroy and delete_payload_t.destroy. - */ -static void destroy(private_delete_payload_t *this) -{ - if (this->spis.ptr != NULL) - { - chunk_free(&this->spis); - } - if (this->spi_list) - { - this->spi_list->destroy(this->spi_list); - } - free(this); -} - -/* - * Described in header - */ -delete_payload_t *delete_payload_create(protocol_id_t protocol_id) -{ - private_delete_payload_t *this = malloc_thing(private_delete_payload_t); - - /* interface functions */ - this->public.payload_interface.verify = (status_t (*) (payload_t *))verify; - this->public.payload_interface.get_encoding_rules = (void (*) (payload_t *, encoding_rule_t **, size_t *) ) get_encoding_rules; - this->public.payload_interface.get_length = (size_t (*) (payload_t *)) get_length; - this->public.payload_interface.get_next_type = (payload_type_t (*) (payload_t *)) get_next_type; - this->public.payload_interface.set_next_type = (void (*) (payload_t *,payload_type_t)) set_next_type; - this->public.payload_interface.get_type = (payload_type_t (*) (payload_t *)) get_payload_type; - this->public.payload_interface.destroy = (void (*) (payload_t *))destroy; - - /* public functions */ - this->public.destroy = (void (*) (delete_payload_t *)) destroy; - this->public.get_protocol_id = (protocol_id_t (*) (delete_payload_t *)) get_protocol_id; - this->public.add_spi = (void (*) (delete_payload_t *,u_int32_t))add_spi; - this->public.create_spi_iterator = (iterator_t* (*) (delete_payload_t *)) create_spi_iterator; - - /* private variables */ - this->critical = FALSE; - this->next_payload = NO_PAYLOAD; - this->payload_length = DELETE_PAYLOAD_HEADER_LENGTH; - this->protocol_id = protocol_id; - this->spi_size = protocol_id == PROTO_AH || protocol_id == PROTO_ESP ? 4 : 0; - this->spi_count = 0; - this->spis = chunk_empty; - this->spi_list = NULL; - - return (&this->public); -} |