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Diffstat (limited to 'src/charon/encoding/payloads/eap_payload.c')
-rw-r--r-- | src/charon/encoding/payloads/eap_payload.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/src/charon/encoding/payloads/eap_payload.c b/src/charon/encoding/payloads/eap_payload.c deleted file mode 100644 index 21f34a642..000000000 --- a/src/charon/encoding/payloads/eap_payload.c +++ /dev/null @@ -1,302 +0,0 @@ -/* - * Copyright (C) 2005-2010 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 "eap_payload.h" - -#include <daemon.h> - -typedef struct private_eap_payload_t private_eap_payload_t; - -/** - * Private data of an eap_payload_t object. - * - */ -struct private_eap_payload_t { - /** - * Public eap_payload_t interface. - */ - eap_payload_t public; - - /** - * Next payload type. - */ - u_int8_t next_payload; - - /** - * Critical flag. - */ - bool critical; - - /** - * Length of this payload. - */ - u_int16_t payload_length; - - /** - * EAP message data, if available - */ - chunk_t data; -}; - -/** - * Encoding rules to parse or generate a EAP payload. - * - * The defined offsets are the positions in a object of type - * private_eap_payload_t. - * - */ -static encoding_rule_t eap_payload_encodings[] = { - /* 1 Byte next payload type, stored in the field next_payload */ - { U_INT_8, offsetof(private_eap_payload_t, next_payload) }, - /* the critical bit */ - { FLAG, offsetof(private_eap_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_eap_payload_t, payload_length) }, - /* chunt to data, starting at "code" */ - { EAP_DATA, offsetof(private_eap_payload_t, data) }, -}; - -/* - 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 ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! Code ! Identifier ! Length ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! Type ! Type_Data... - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- -*/ - -METHOD(payload_t, verify, status_t, - private_eap_payload_t *this) -{ - u_int16_t length; - u_int8_t code; - - if (this->data.len < 4) - { - DBG1(DBG_ENC, "EAP payloads EAP message too short (%d)", this->data.len); - return FAILED; - } - length = untoh16(this->data.ptr + 2); - if (this->data.len != length) - { - DBG1(DBG_ENC, "EAP payload length (%d) does not match contained " - "message length (%d)", this->data.len, length); - return FAILED; - } - code = this->data.ptr[0]; - switch (code) - { - case EAP_REQUEST: - case EAP_RESPONSE: - { - if (this->data.len < 4) - { - DBG1(DBG_ENC, "EAP Request/Response does not have any data"); - return FAILED; - } - break; - } - case EAP_SUCCESS: - case EAP_FAILURE: - { - if (this->data.len != 4) - { - DBG1(DBG_ENC, "EAP Success/Failure has data"); - return FAILED; - } - break; - } - default: - return FAILED; - } - return SUCCESS; -} - -METHOD(payload_t, get_encoding_rules, void, - private_eap_payload_t *this, encoding_rule_t **rules, size_t *rule_count) -{ - *rules = eap_payload_encodings; - *rule_count = sizeof(eap_payload_encodings) / sizeof(encoding_rule_t); -} - -METHOD(payload_t, get_payload_type, payload_type_t, - private_eap_payload_t *this) -{ - return EXTENSIBLE_AUTHENTICATION; -} - -METHOD(payload_t, get_next_type, payload_type_t, - private_eap_payload_t *this) -{ - return (this->next_payload); -} - -METHOD(payload_t, set_next_type, void, - private_eap_payload_t *this, payload_type_t type) -{ - this->next_payload = type; -} - -METHOD(payload_t, get_length, size_t, - private_eap_payload_t *this) -{ - return this->payload_length; -} - -METHOD(eap_payload_t, get_data, chunk_t, - private_eap_payload_t *this) -{ - return this->data; -} - -METHOD(eap_payload_t, set_data, void, - private_eap_payload_t *this, chunk_t data) -{ - free(this->data.ptr); - this->data = chunk_clone(data); - this->payload_length = this->data.len + 4; -} - -METHOD(eap_payload_t, get_code, eap_code_t, - private_eap_payload_t *this) -{ - if (this->data.len > 0) - { - return this->data.ptr[0]; - } - /* should not happen, as it is verified */ - return 0; -} - -METHOD(eap_payload_t, get_identifier, u_int8_t, - private_eap_payload_t *this) -{ - if (this->data.len > 1) - { - return this->data.ptr[1]; - } - /* should not happen, as it is verified */ - return 0; -} - -METHOD(eap_payload_t, get_type, eap_type_t, - private_eap_payload_t *this, u_int32_t *vendor) -{ - eap_type_t type; - - *vendor = 0; - if (this->data.len > 4) - { - type = this->data.ptr[4]; - if (type != EAP_EXPANDED) - { - return type; - } - if (this->data.len >= 12) - { - *vendor = untoh32(this->data.ptr + 4) & 0x00FFFFFF; - return untoh32(this->data.ptr + 8); - } - } - return 0; -} - -METHOD2(payload_t, eap_payload_t, destroy, void, - private_eap_payload_t *this) -{ - chunk_free(&this->data); - free(this); -} - -/* - * Described in header - */ -eap_payload_t *eap_payload_create() -{ - private_eap_payload_t *this; - - INIT(this, - .public = { - .payload_interface = { - .verify = _verify, - .get_encoding_rules = _get_encoding_rules, - .get_length = _get_length, - .get_next_type = _get_next_type, - .set_next_type = _set_next_type, - .get_type = _get_payload_type, - .destroy = _destroy, - }, - .get_data = _get_data, - .set_data = _set_data, - .get_code = _get_code, - .get_identifier = _get_identifier, - .get_type = _get_type, - .destroy = _destroy, - }, - .next_payload = NO_PAYLOAD, - .payload_length = EAP_PAYLOAD_HEADER_LENGTH, - ); - return &this->public; -} - -/* - * Described in header - */ -eap_payload_t *eap_payload_create_data(chunk_t data) -{ - eap_payload_t *this = eap_payload_create(); - - this->set_data(this, data); - return this; -} - -/* - * Described in header - */ -eap_payload_t *eap_payload_create_code(eap_code_t code, u_int8_t identifier) -{ - chunk_t data; - - data = chunk_from_chars(code, identifier, 0, 0); - htoun16(data.ptr + 2, data.len); - return eap_payload_create_data(data); -} - -/* - * Described in header - */ -eap_payload_t *eap_payload_create_nak(u_int8_t identifier) -{ - chunk_t data; - - data = chunk_from_chars(EAP_RESPONSE, identifier, 0, 0, EAP_NAK); - htoun16(data.ptr + 2, data.len); - return eap_payload_create_data(data); -} - |