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Diffstat (limited to 'src/charon/encoding/payloads/transform_attribute.c')
-rw-r--r-- | src/charon/encoding/payloads/transform_attribute.c | 325 |
1 files changed, 0 insertions, 325 deletions
diff --git a/src/charon/encoding/payloads/transform_attribute.c b/src/charon/encoding/payloads/transform_attribute.c deleted file mode 100644 index 8bf2ddef4..000000000 --- a/src/charon/encoding/payloads/transform_attribute.c +++ /dev/null @@ -1,325 +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 <string.h> -#include <stddef.h> - -#include "transform_attribute.h" - -#include <encoding/payloads/encodings.h> -#include <library.h> - -typedef struct private_transform_attribute_t private_transform_attribute_t; - -/** - * Private data of an transform_attribute_t object. - * - */ -struct private_transform_attribute_t { - /** - * Public transform_attribute_t interface. - */ - transform_attribute_t public; - - /** - * Attribute Format Flag. - * - * - TRUE means value is stored in attribute_length_or_value - * - FALSE means value is stored in attribute_value - */ - bool attribute_format; - - /** - * Type of the attribute. - */ - u_int16_t attribute_type; - - /** - * Attribute Length if attribute_format is 0, attribute Value otherwise. - */ - u_int16_t attribute_length_or_value; - - /** - * Attribute value as chunk if attribute_format is 0 (FALSE). - */ - chunk_t attribute_value; -}; - - -ENUM_BEGIN(transform_attribute_type_name, ATTRIBUTE_UNDEFINED, ATTRIBUTE_UNDEFINED, - "ATTRIBUTE_UNDEFINED"); -ENUM_NEXT(transform_attribute_type_name, KEY_LENGTH, KEY_LENGTH, ATTRIBUTE_UNDEFINED, - "KEY_LENGTH"); -ENUM_END(transform_attribute_type_name, KEY_LENGTH); - -/** - * Encoding rules to parse or generate a Transform attribute. - * - * The defined offsets are the positions in a object of type - * private_transform_attribute_t. - * - */ -encoding_rule_t transform_attribute_encodings[] = { - /* Flag defining the format of this payload */ - { ATTRIBUTE_FORMAT, offsetof(private_transform_attribute_t, attribute_format) }, - /* type of the attribute as 15 bit unsigned integer */ - { ATTRIBUTE_TYPE, offsetof(private_transform_attribute_t, attribute_type) }, - /* Length or value, depending on the attribute format flag */ - { ATTRIBUTE_LENGTH_OR_VALUE, offsetof(private_transform_attribute_t, attribute_length_or_value) }, - /* Value of attribute if attribute format flag is zero */ - { ATTRIBUTE_VALUE, offsetof(private_transform_attribute_t, attribute_value) } -}; - -/* - 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 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - !A! Attribute Type ! AF=0 Attribute Length ! - !F! ! AF=1 Attribute Value ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! AF=0 Attribute Value ! - ! AF=1 Not Transmitted ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -*/ - -/** - * Implementation of payload_t.verify. - */ -static status_t verify(private_transform_attribute_t *this) -{ - if (this->attribute_type != KEY_LENGTH) - { - return FAILED; - } - - return SUCCESS; -} - -/** - * Implementation of payload_t.get_encoding_rules. - */ -static void get_encoding_rules(private_transform_attribute_t *this, encoding_rule_t **rules, size_t *rule_count) -{ - *rules = transform_attribute_encodings; - *rule_count = sizeof(transform_attribute_encodings) / sizeof(encoding_rule_t); -} - -/** - * Implementation of payload_t.get_type. - */ -static payload_type_t get_type(private_transform_attribute_t *this) -{ - return TRANSFORM_ATTRIBUTE; -} - -/** - * Implementation of payload_t.get_next_type. - */ -static payload_type_t get_next_type(private_transform_attribute_t *this) -{ - return (NO_PAYLOAD); -} - -/** - * Implementation of payload_t.set_next_type. - */ -static void set_next_type(private_transform_attribute_t *this,payload_type_t type) -{ -} - -/** - * Implementation of transform_attribute_t.get_length. - */ -static size_t get_length(private_transform_attribute_t *this) -{ - if (this->attribute_format == TRUE) - { - /*Attribute size is only 4 byte */ - return 4; - } - return (this->attribute_length_or_value + 4); -} - -/** - * Implementation of transform_attribute_t.set_value_chunk. - */ -static void set_value_chunk(private_transform_attribute_t *this, chunk_t value) -{ - if (this->attribute_value.ptr != NULL) - { - /* free existing value */ - free(this->attribute_value.ptr); - this->attribute_value.ptr = NULL; - this->attribute_value.len = 0; - - } - - if (value.len > 2) - { - this->attribute_value.ptr = clalloc(value.ptr,value.len); - this->attribute_value.len = value.len; - this->attribute_length_or_value = value.len; - /* attribute has not a fixed length */ - this->attribute_format = FALSE; - } - else - { - memcpy(&(this->attribute_length_or_value),value.ptr,value.len); - } -} - -/** - * Implementation of transform_attribute_t.set_value. - */ -static void set_value(private_transform_attribute_t *this, u_int16_t value) -{ - if (this->attribute_value.ptr != NULL) - { - /* free existing value */ - free(this->attribute_value.ptr); - this->attribute_value.ptr = NULL; - this->attribute_value.len = 0; - - } - this->attribute_length_or_value = value; -} - -/** - * Implementation of transform_attribute_t.get_value_chunk. - */ -static chunk_t get_value_chunk (private_transform_attribute_t *this) -{ - chunk_t value; - - if (this->attribute_format == FALSE) - { - value.ptr = this->attribute_value.ptr; - value.len = this->attribute_value.len; - } - else - { - value.ptr = (void *) &(this->attribute_length_or_value); - value.len = 2; - } - - return value; -} - -/** - * Implementation of transform_attribute_t.get_value. - */ -static u_int16_t get_value (private_transform_attribute_t *this) -{ - return this->attribute_length_or_value; -} - - -/** - * Implementation of transform_attribute_t.set_attribute_type. - */ -static void set_attribute_type (private_transform_attribute_t *this, u_int16_t type) -{ - this->attribute_type = type & 0x7FFF; -} - -/** - * Implementation of transform_attribute_t.get_attribute_type. - */ -static u_int16_t get_attribute_type (private_transform_attribute_t *this) -{ - return this->attribute_type; -} - -/** - * Implementation of transform_attribute_t.clone. - */ -static transform_attribute_t * _clone(private_transform_attribute_t *this) -{ - private_transform_attribute_t *new_clone; - - new_clone = (private_transform_attribute_t *) transform_attribute_create(); - - new_clone->attribute_format = this->attribute_format; - new_clone->attribute_type = this->attribute_type; - new_clone->attribute_length_or_value = this->attribute_length_or_value; - - if (!new_clone->attribute_format) - { - new_clone->attribute_value.ptr = clalloc(this->attribute_value.ptr,this->attribute_value.len); - new_clone->attribute_value.len = this->attribute_value.len; - } - - return (transform_attribute_t *) new_clone; -} - -/** - * Implementation of transform_attribute_t.destroy and payload_t.destroy. - */ -static void destroy(private_transform_attribute_t *this) -{ - if (this->attribute_value.ptr != NULL) - { - free(this->attribute_value.ptr); - } - free(this); -} - -/* - * Described in header. - */ -transform_attribute_t *transform_attribute_create() -{ - private_transform_attribute_t *this = malloc_thing(private_transform_attribute_t); - - /* payload interface */ - 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_type; - this->public.payload_interface.destroy = (void (*) (payload_t *))destroy; - - /* public functions */ - this->public.set_value_chunk = (void (*) (transform_attribute_t *,chunk_t)) set_value_chunk; - this->public.set_value = (void (*) (transform_attribute_t *,u_int16_t)) set_value; - this->public.get_value_chunk = (chunk_t (*) (transform_attribute_t *)) get_value_chunk; - this->public.get_value = (u_int16_t (*) (transform_attribute_t *)) get_value; - this->public.set_attribute_type = (void (*) (transform_attribute_t *,u_int16_t type)) set_attribute_type; - this->public.get_attribute_type = (u_int16_t (*) (transform_attribute_t *)) get_attribute_type; - this->public.clone = (transform_attribute_t * (*) (transform_attribute_t *)) _clone; - this->public.destroy = (void (*) (transform_attribute_t *)) destroy; - - /* set default values of the fields */ - this->attribute_format = TRUE; - this->attribute_type = 0; - this->attribute_length_or_value = 0; - this->attribute_value.ptr = NULL; - this->attribute_value.len = 0; - - return (&(this->public)); -} - -/* - * Described in header. - */ -transform_attribute_t *transform_attribute_create_key_length(u_int16_t key_length) -{ - transform_attribute_t *attribute = transform_attribute_create(); - attribute->set_attribute_type(attribute,KEY_LENGTH); - attribute->set_value(attribute,key_length); - return attribute; -} |