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-rw-r--r--src/charon/config/proposal.c945
1 files changed, 0 insertions, 945 deletions
diff --git a/src/charon/config/proposal.c b/src/charon/config/proposal.c
deleted file mode 100644
index 6b3500b6e..000000000
--- a/src/charon/config/proposal.c
+++ /dev/null
@@ -1,945 +0,0 @@
-/*
- * Copyright (C) 2008-2009 Tobias Brunner
- * Copyright (C) 2006 Martin Willi
- * 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 "proposal.h"
-
-#include <daemon.h>
-#include <utils/linked_list.h>
-#include <utils/identification.h>
-#include <utils/lexparser.h>
-#include <crypto/transform.h>
-#include <crypto/prfs/prf.h>
-#include <crypto/crypters/crypter.h>
-#include <crypto/signers/signer.h>
-#include <crypto/proposal/proposal_keywords.h>
-
-ENUM(protocol_id_names, PROTO_NONE, PROTO_ESP,
- "PROTO_NONE",
- "IKE",
- "AH",
- "ESP",
-);
-
-ENUM(extended_sequence_numbers_names, NO_EXT_SEQ_NUMBERS, EXT_SEQ_NUMBERS,
- "NO_EXT_SEQ",
- "EXT_SEQ",
-);
-
-typedef struct private_proposal_t private_proposal_t;
-typedef struct algorithm_t algorithm_t;
-
-/**
- * Private data of an proposal_t object
- */
-struct private_proposal_t {
-
- /**
- * Public part
- */
- proposal_t public;
-
- /**
- * protocol (ESP or AH)
- */
- protocol_id_t protocol;
-
- /**
- * priority ordered list of encryption algorithms
- */
- linked_list_t *encryption_algos;
-
- /**
- * priority ordered list of integrity algorithms
- */
- linked_list_t *integrity_algos;
-
- /**
- * priority ordered list of pseudo random functions
- */
- linked_list_t *prf_algos;
-
- /**
- * priority ordered list of dh groups
- */
- linked_list_t *dh_groups;
-
- /**
- * priority ordered list of extended sequence number flags
- */
- linked_list_t *esns;
-
- /**
- * senders SPI
- */
- u_int64_t spi;
-};
-
-/**
- * Struct used to store different kinds of algorithms.
- */
-struct algorithm_t {
- /**
- * Value from an encryption_algorithm_t/integrity_algorithm_t/...
- */
- u_int16_t algorithm;
-
- /**
- * the associated key size in bits, or zero if not needed
- */
- u_int16_t key_size;
-};
-
-/**
- * Add algorithm/keysize to a algorithm list
- */
-static void add_algo(linked_list_t *list, u_int16_t algo, u_int16_t key_size)
-{
- algorithm_t *algo_key;
-
- algo_key = malloc_thing(algorithm_t);
- algo_key->algorithm = algo;
- algo_key->key_size = key_size;
- list->insert_last(list, (void*)algo_key);
-}
-
-/**
- * Implements proposal_t.add_algorithm
- */
-static void add_algorithm(private_proposal_t *this, transform_type_t type,
- u_int16_t algo, u_int16_t key_size)
-{
- switch (type)
- {
- case ENCRYPTION_ALGORITHM:
- add_algo(this->encryption_algos, algo, key_size);
- break;
- case INTEGRITY_ALGORITHM:
- add_algo(this->integrity_algos, algo, key_size);
- break;
- case PSEUDO_RANDOM_FUNCTION:
- add_algo(this->prf_algos, algo, key_size);
- break;
- case DIFFIE_HELLMAN_GROUP:
- add_algo(this->dh_groups, algo, 0);
- break;
- case EXTENDED_SEQUENCE_NUMBERS:
- add_algo(this->esns, algo, 0);
- break;
- default:
- break;
- }
-}
-
-/**
- * filter function for peer configs
- */
-static bool alg_filter(void *null, algorithm_t **in, u_int16_t *alg,
- void **unused, u_int16_t *key_size)
-{
- algorithm_t *algo = *in;
- *alg = algo->algorithm;
- if (key_size)
- {
- *key_size = algo->key_size;
- }
- return TRUE;
-}
-
-/**
- * Implements proposal_t.create_enumerator.
- */
-static enumerator_t *create_enumerator(private_proposal_t *this,
- transform_type_t type)
-{
- linked_list_t *list;
-
- switch (type)
- {
- case ENCRYPTION_ALGORITHM:
- list = this->encryption_algos;
- break;
- case INTEGRITY_ALGORITHM:
- list = this->integrity_algos;
- break;
- case PSEUDO_RANDOM_FUNCTION:
- list = this->prf_algos;
- break;
- case DIFFIE_HELLMAN_GROUP:
- list = this->dh_groups;
- break;
- case EXTENDED_SEQUENCE_NUMBERS:
- list = this->esns;
- break;
- default:
- return NULL;
- }
- return enumerator_create_filter(list->create_enumerator(list),
- (void*)alg_filter, NULL, NULL);
-}
-
-/**
- * Implements proposal_t.get_algorithm.
- */
-static bool get_algorithm(private_proposal_t *this, transform_type_t type,
- u_int16_t *alg, u_int16_t *key_size)
-{
- enumerator_t *enumerator;
- bool found = FALSE;
-
- enumerator = create_enumerator(this, type);
- if (enumerator->enumerate(enumerator, alg, key_size))
- {
- found = TRUE;
- }
- enumerator->destroy(enumerator);
- return found;
-}
-
-/**
- * Implements proposal_t.has_dh_group
- */
-static bool has_dh_group(private_proposal_t *this, diffie_hellman_group_t group)
-{
- bool result = FALSE;
-
- if (this->dh_groups->get_count(this->dh_groups))
- {
- algorithm_t *current;
- enumerator_t *enumerator;
-
- enumerator = this->dh_groups->create_enumerator(this->dh_groups);
- while (enumerator->enumerate(enumerator, (void**)&current))
- {
- if (current->algorithm == group)
- {
- result = TRUE;
- break;
- }
- }
- enumerator->destroy(enumerator);
- }
- else if (group == MODP_NONE)
- {
- result = TRUE;
- }
- return result;
-}
-
-/**
- * Implementation of proposal_t.strip_dh.
- */
-static void strip_dh(private_proposal_t *this)
-{
- algorithm_t *alg;
-
- while (this->dh_groups->remove_last(this->dh_groups, (void**)&alg) == SUCCESS)
- {
- free(alg);
- }
-}
-
-/**
- * Returns true if the given alg is an authenticated encryption algorithm
- */
-static bool is_authenticated_encryption(u_int16_t alg)
-{
- switch(alg)
- {
- case ENCR_AES_CCM_ICV8:
- case ENCR_AES_CCM_ICV12:
- case ENCR_AES_CCM_ICV16:
- case ENCR_AES_GCM_ICV8:
- case ENCR_AES_GCM_ICV12:
- case ENCR_AES_GCM_ICV16:
- case ENCR_CAMELLIA_CCM_ICV8:
- case ENCR_CAMELLIA_CCM_ICV12:
- case ENCR_CAMELLIA_CCM_ICV16:
- return TRUE;
- }
- return FALSE;
-}
-
-/**
- * Find a matching alg/keysize in two linked lists
- */
-static bool select_algo(linked_list_t *first, linked_list_t *second, bool priv,
- bool *add, u_int16_t *alg, size_t *key_size)
-{
- enumerator_t *e1, *e2;
- algorithm_t *alg1, *alg2;
-
- /* if in both are zero algorithms specified, we HAVE a match */
- if (first->get_count(first) == 0 && second->get_count(second) == 0)
- {
- *add = FALSE;
- return TRUE;
- }
-
- e1 = first->create_enumerator(first);
- e2 = second->create_enumerator(second);
- /* compare algs, order of algs in "first" is preferred */
- while (e1->enumerate(e1, &alg1))
- {
- e2->destroy(e2);
- e2 = second->create_enumerator(second);
- while (e2->enumerate(e2, &alg2))
- {
- if (alg1->algorithm == alg2->algorithm &&
- alg1->key_size == alg2->key_size)
- {
- if (!priv && alg1->algorithm >= 1024)
- {
- /* accept private use algorithms only if requested */
- DBG1(DBG_CFG, "an algorithm from private space would match, "
- "but peer implementation is unknown, skipped");
- continue;
- }
- /* ok, we have an algorithm */
- *alg = alg1->algorithm;
- *key_size = alg1->key_size;
- *add = TRUE;
- e1->destroy(e1);
- e2->destroy(e2);
- return TRUE;
- }
- }
- }
- /* no match in all comparisons */
- e1->destroy(e1);
- e2->destroy(e2);
- return FALSE;
-}
-
-/**
- * Implements proposal_t.select.
- */
-static proposal_t *select_proposal(private_proposal_t *this,
- private_proposal_t *other, bool private)
-{
- proposal_t *selected;
- u_int16_t algo;
- size_t key_size;
- bool add;
-
- DBG2(DBG_CFG, "selecting proposal:");
-
- /* check protocol */
- if (this->protocol != other->protocol)
- {
- DBG2(DBG_CFG, " protocol mismatch, skipping");
- return NULL;
- }
-
- selected = proposal_create(this->protocol);
-
- /* select encryption algorithm */
- if (select_algo(this->encryption_algos, other->encryption_algos, private,
- &add, &algo, &key_size))
- {
- if (add)
- {
- selected->add_algorithm(selected, ENCRYPTION_ALGORITHM,
- algo, key_size);
- }
- }
- else
- {
- selected->destroy(selected);
- DBG2(DBG_CFG, " no acceptable %N found",
- transform_type_names, ENCRYPTION_ALGORITHM);
- return NULL;
- }
- /* select integrity algorithm */
- if (!is_authenticated_encryption(algo))
- {
- if (select_algo(this->integrity_algos, other->integrity_algos, private,
- &add, &algo, &key_size))
- {
- if (add)
- {
- selected->add_algorithm(selected, INTEGRITY_ALGORITHM,
- algo, key_size);
- }
- }
- else
- {
- selected->destroy(selected);
- DBG2(DBG_CFG, " no acceptable %N found",
- transform_type_names, INTEGRITY_ALGORITHM);
- return NULL;
- }
- }
- /* select prf algorithm */
- if (select_algo(this->prf_algos, other->prf_algos, private,
- &add, &algo, &key_size))
- {
- if (add)
- {
- selected->add_algorithm(selected, PSEUDO_RANDOM_FUNCTION,
- algo, key_size);
- }
- }
- else
- {
- selected->destroy(selected);
- DBG2(DBG_CFG, " no acceptable %N found",
- transform_type_names, PSEUDO_RANDOM_FUNCTION);
- return NULL;
- }
- /* select a DH-group */
- if (select_algo(this->dh_groups, other->dh_groups, private,
- &add, &algo, &key_size))
- {
- if (add)
- {
- selected->add_algorithm(selected, DIFFIE_HELLMAN_GROUP, algo, 0);
- }
- }
- else
- {
- selected->destroy(selected);
- DBG2(DBG_CFG, " no acceptable %N found",
- transform_type_names, DIFFIE_HELLMAN_GROUP);
- return NULL;
- }
- /* select if we use ESNs (has no private use space) */
- if (select_algo(this->esns, other->esns, TRUE, &add, &algo, &key_size))
- {
- if (add)
- {
- selected->add_algorithm(selected, EXTENDED_SEQUENCE_NUMBERS, algo, 0);
- }
- }
- else
- {
- selected->destroy(selected);
- DBG2(DBG_CFG, " no acceptable %N found",
- transform_type_names, EXTENDED_SEQUENCE_NUMBERS);
- return NULL;
- }
- DBG2(DBG_CFG, " proposal matches");
-
- /* apply SPI from "other" */
- selected->set_spi(selected, other->spi);
-
- /* everything matched, return new proposal */
- return selected;
-}
-
-/**
- * Implements proposal_t.get_protocols.
- */
-static protocol_id_t get_protocol(private_proposal_t *this)
-{
- return this->protocol;
-}
-
-/**
- * Implements proposal_t.set_spi.
- */
-static void set_spi(private_proposal_t *this, u_int64_t spi)
-{
- this->spi = spi;
-}
-
-/**
- * Implements proposal_t.get_spi.
- */
-static u_int64_t get_spi(private_proposal_t *this)
-{
- return this->spi;
-}
-
-/**
- * Clone a algorithm list
- */
-static void clone_algo_list(linked_list_t *list, linked_list_t *clone_list)
-{
- algorithm_t *algo, *clone_algo;
- enumerator_t *enumerator;
-
- enumerator = list->create_enumerator(list);
- while (enumerator->enumerate(enumerator, &algo))
- {
- clone_algo = malloc_thing(algorithm_t);
- memcpy(clone_algo, algo, sizeof(algorithm_t));
- clone_list->insert_last(clone_list, (void*)clone_algo);
- }
- enumerator->destroy(enumerator);
-}
-
-/**
- * check if an algorithm list equals
- */
-static bool algo_list_equals(linked_list_t *l1, linked_list_t *l2)
-{
- enumerator_t *e1, *e2;
- algorithm_t *alg1, *alg2;
- bool equals = TRUE;
-
- if (l1->get_count(l1) != l2->get_count(l2))
- {
- return FALSE;
- }
-
- e1 = l1->create_enumerator(l1);
- e2 = l2->create_enumerator(l2);
- while (e1->enumerate(e1, &alg1) && e2->enumerate(e2, &alg2))
- {
- if (alg1->algorithm != alg2->algorithm ||
- alg1->key_size != alg2->key_size)
- {
- equals = FALSE;
- break;
- }
- }
- e1->destroy(e1);
- e2->destroy(e2);
- return equals;
-}
-
-/**
- * Implementation of proposal_t.equals.
- */
-static bool equals(private_proposal_t *this, private_proposal_t *other)
-{
- if (this == other)
- {
- return TRUE;
- }
- if (this->public.equals != other->public.equals)
- {
- return FALSE;
- }
- return (
- algo_list_equals(this->encryption_algos, other->encryption_algos) &&
- algo_list_equals(this->integrity_algos, other->integrity_algos) &&
- algo_list_equals(this->prf_algos, other->prf_algos) &&
- algo_list_equals(this->dh_groups, other->dh_groups) &&
- algo_list_equals(this->esns, other->esns));
-}
-
-/**
- * Implements proposal_t.clone
- */
-static proposal_t *clone_(private_proposal_t *this)
-{
- private_proposal_t *clone = (private_proposal_t*)proposal_create(this->protocol);
-
- clone_algo_list(this->encryption_algos, clone->encryption_algos);
- clone_algo_list(this->integrity_algos, clone->integrity_algos);
- clone_algo_list(this->prf_algos, clone->prf_algos);
- clone_algo_list(this->dh_groups, clone->dh_groups);
- clone_algo_list(this->esns, clone->esns);
-
- clone->spi = this->spi;
-
- return &clone->public;
-}
-
-/**
- * Checks the proposal read from a string.
- */
-static void check_proposal(private_proposal_t *this)
-{
- enumerator_t *e;
- algorithm_t *alg;
- bool all_aead = TRUE;
-
- e = this->encryption_algos->create_enumerator(this->encryption_algos);
- while (e->enumerate(e, &alg))
- {
- if (!is_authenticated_encryption(alg->algorithm))
- {
- all_aead = FALSE;
- break;
- }
- }
- e->destroy(e);
-
- if (all_aead)
- {
- /* if all encryption algorithms in the proposal are authenticated encryption
- * algorithms we MUST NOT propose any integrity algorithms */
- while (this->integrity_algos->remove_last(this->integrity_algos,
- (void**)&alg) == SUCCESS)
- {
- free(alg);
- }
- }
-}
-
-/**
- * add a algorithm identified by a string to the proposal.
- */
-static status_t add_string_algo(private_proposal_t *this, chunk_t alg)
-{
- const proposal_token_t *token = proposal_get_token(alg.ptr, alg.len);
-
- if (token == NULL)
- {
- return FAILED;
- }
-
- add_algorithm(this, token->type, token->algorithm, token->keysize);
-
- if (this->protocol == PROTO_IKE && token->type == INTEGRITY_ALGORITHM)
- {
- pseudo_random_function_t prf;
-
- switch (token->algorithm)
- {
- case AUTH_HMAC_SHA1_96:
- prf = PRF_HMAC_SHA1;
- break;
- case AUTH_HMAC_SHA2_256_128:
- prf = PRF_HMAC_SHA2_256;
- break;
- case AUTH_HMAC_SHA2_384_192:
- prf = PRF_HMAC_SHA2_384;
- break;
- case AUTH_HMAC_SHA2_512_256:
- prf = PRF_HMAC_SHA2_512;
- break;
- case AUTH_HMAC_MD5_96:
- prf = PRF_HMAC_MD5;
- break;
- case AUTH_AES_XCBC_96:
- prf = PRF_AES128_XCBC;
- break;
- default:
- prf = PRF_UNDEFINED;
- }
- if (prf != PRF_UNDEFINED)
- {
- add_algorithm(this, PSEUDO_RANDOM_FUNCTION, prf, 0);
- }
- }
- return SUCCESS;
-}
-
-/**
- * print all algorithms of a kind to buffer
- */
-static int print_alg(private_proposal_t *this, char **dst, size_t *len,
- u_int kind, void *names, bool *first)
-{
- enumerator_t *enumerator;
- size_t written = 0;
- u_int16_t alg, size;
-
- enumerator = create_enumerator(this, kind);
- while (enumerator->enumerate(enumerator, &alg, &size))
- {
- if (*first)
- {
- written += print_in_hook(*dst, *len, "%N", names, alg);
- *first = FALSE;
- }
- else
- {
- written += print_in_hook(*dst, *len, "/%N", names, alg);
- }
- if (size)
- {
- written += print_in_hook(*dst, *len, "_%u", size);
- }
- }
- enumerator->destroy(enumerator);
- return written;
-}
-
-/**
- * Described in header.
- */
-int proposal_printf_hook(char *dst, size_t len, printf_hook_spec_t *spec,
- const void *const *args)
-{
- private_proposal_t *this = *((private_proposal_t**)(args[0]));
- linked_list_t *list = *((linked_list_t**)(args[0]));
- enumerator_t *enumerator;
- size_t written = 0;
- bool first = TRUE;
-
- if (this == NULL)
- {
- return print_in_hook(dst, len, "(null)");
- }
-
- if (spec->hash)
- {
- enumerator = list->create_enumerator(list);
- while (enumerator->enumerate(enumerator, &this))
- { /* call recursivly */
- if (first)
- {
- written += print_in_hook(dst, len, "%P", this);
- first = FALSE;
- }
- else
- {
- written += print_in_hook(dst, len, ", %P", this);
- }
- }
- enumerator->destroy(enumerator);
- return written;
- }
-
- written = print_in_hook(dst, len, "%N:", protocol_id_names, this->protocol);
- written += print_alg(this, &dst, &len, ENCRYPTION_ALGORITHM,
- encryption_algorithm_names, &first);
- written += print_alg(this, &dst, &len, INTEGRITY_ALGORITHM,
- integrity_algorithm_names, &first);
- written += print_alg(this, &dst, &len, PSEUDO_RANDOM_FUNCTION,
- pseudo_random_function_names, &first);
- written += print_alg(this, &dst, &len, DIFFIE_HELLMAN_GROUP,
- diffie_hellman_group_names, &first);
- written += print_alg(this, &dst, &len, EXTENDED_SEQUENCE_NUMBERS,
- extended_sequence_numbers_names, &first);
- return written;
-}
-
-/**
- * Implements proposal_t.destroy.
- */
-static void destroy(private_proposal_t *this)
-{
- this->encryption_algos->destroy_function(this->encryption_algos, free);
- this->integrity_algos->destroy_function(this->integrity_algos, free);
- this->prf_algos->destroy_function(this->prf_algos, free);
- this->dh_groups->destroy_function(this->dh_groups, free);
- this->esns->destroy_function(this->esns, free);
- free(this);
-}
-
-/*
- * Describtion in header-file
- */
-proposal_t *proposal_create(protocol_id_t protocol)
-{
- private_proposal_t *this = malloc_thing(private_proposal_t);
-
- this->public.add_algorithm = (void (*)(proposal_t*,transform_type_t,u_int16_t,u_int16_t))add_algorithm;
- this->public.create_enumerator = (enumerator_t* (*)(proposal_t*,transform_type_t))create_enumerator;
- this->public.get_algorithm = (bool (*)(proposal_t*,transform_type_t,u_int16_t*,u_int16_t*))get_algorithm;
- this->public.has_dh_group = (bool (*)(proposal_t*,diffie_hellman_group_t))has_dh_group;
- this->public.strip_dh = (void(*)(proposal_t*))strip_dh;
- this->public.select = (proposal_t* (*)(proposal_t*,proposal_t*,bool))select_proposal;
- this->public.get_protocol = (protocol_id_t(*)(proposal_t*))get_protocol;
- this->public.set_spi = (void(*)(proposal_t*,u_int64_t))set_spi;
- this->public.get_spi = (u_int64_t(*)(proposal_t*))get_spi;
- this->public.equals = (bool(*)(proposal_t*, proposal_t *other))equals;
- this->public.clone = (proposal_t*(*)(proposal_t*))clone_;
- this->public.destroy = (void(*)(proposal_t*))destroy;
-
- this->spi = 0;
- this->protocol = protocol;
-
- this->encryption_algos = linked_list_create();
- this->integrity_algos = linked_list_create();
- this->prf_algos = linked_list_create();
- this->dh_groups = linked_list_create();
- this->esns = linked_list_create();
-
- return &this->public;
-}
-
-/**
- * Add supported IKE algorithms to proposal
- */
-static void proposal_add_supported_ike(private_proposal_t *this)
-{
- enumerator_t *enumerator;
- encryption_algorithm_t encryption;
- integrity_algorithm_t integrity;
- pseudo_random_function_t prf;
- diffie_hellman_group_t group;
-
- enumerator = lib->crypto->create_crypter_enumerator(lib->crypto);
- while (enumerator->enumerate(enumerator, &encryption))
- {
- switch (encryption)
- {
- case ENCR_AES_CBC:
- /* we assume that we support all AES sizes */
- add_algorithm(this, ENCRYPTION_ALGORITHM, encryption, 128);
- add_algorithm(this, ENCRYPTION_ALGORITHM, encryption, 192);
- add_algorithm(this, ENCRYPTION_ALGORITHM, encryption, 256);
- break;
- case ENCR_3DES:
- case ENCR_AES_CTR:
- case ENCR_AES_CCM_ICV8:
- case ENCR_AES_CCM_ICV12:
- case ENCR_AES_CCM_ICV16:
- case ENCR_AES_GCM_ICV8:
- case ENCR_AES_GCM_ICV12:
- case ENCR_AES_GCM_ICV16:
- add_algorithm(this, ENCRYPTION_ALGORITHM, encryption, 0);
- break;
- case ENCR_DES:
- /* no, thanks */
- break;
- default:
- break;
- }
- }
- enumerator->destroy(enumerator);
-
- enumerator = lib->crypto->create_signer_enumerator(lib->crypto);
- while (enumerator->enumerate(enumerator, &integrity))
- {
- switch (integrity)
- {
- case AUTH_HMAC_SHA1_96:
- case AUTH_HMAC_SHA2_256_128:
- case AUTH_HMAC_SHA2_384_192:
- case AUTH_HMAC_SHA2_512_256:
- case AUTH_HMAC_MD5_96:
- case AUTH_AES_XCBC_96:
- add_algorithm(this, INTEGRITY_ALGORITHM, integrity, 0);
- break;
- default:
- break;
- }
- }
- enumerator->destroy(enumerator);
-
- enumerator = lib->crypto->create_prf_enumerator(lib->crypto);
- while (enumerator->enumerate(enumerator, &prf))
- {
- switch (prf)
- {
- case PRF_HMAC_SHA1:
- case PRF_HMAC_SHA2_256:
- case PRF_HMAC_SHA2_384:
- case PRF_HMAC_SHA2_512:
- case PRF_HMAC_MD5:
- case PRF_AES128_XCBC:
- add_algorithm(this, PSEUDO_RANDOM_FUNCTION, prf, 0);
- break;
- default:
- break;
- }
- }
- enumerator->destroy(enumerator);
-
- enumerator = lib->crypto->create_dh_enumerator(lib->crypto);
- while (enumerator->enumerate(enumerator, &group))
- {
- switch (group)
- {
- case MODP_NULL:
- /* only for testing purposes */
- break;
- case MODP_768_BIT:
- /* weak */
- break;
- case MODP_1024_BIT:
- case MODP_1536_BIT:
- case MODP_2048_BIT:
- case MODP_4096_BIT:
- case MODP_8192_BIT:
- case ECP_256_BIT:
- case ECP_384_BIT:
- case ECP_521_BIT:
- case ECP_192_BIT:
- case ECP_224_BIT:
- add_algorithm(this, DIFFIE_HELLMAN_GROUP, group, 0);
- break;
- default:
- break;
- }
- }
- enumerator->destroy(enumerator);
-}
-
-/*
- * Describtion in header-file
- */
-proposal_t *proposal_create_default(protocol_id_t protocol)
-{
- private_proposal_t *this = (private_proposal_t*)proposal_create(protocol);
-
- switch (protocol)
- {
- case PROTO_IKE:
- proposal_add_supported_ike(this);
- break;
- case PROTO_ESP:
- add_algorithm(this, ENCRYPTION_ALGORITHM, ENCR_AES_CBC, 128);
- add_algorithm(this, ENCRYPTION_ALGORITHM, ENCR_AES_CBC, 192);
- add_algorithm(this, ENCRYPTION_ALGORITHM, ENCR_AES_CBC, 256);
- add_algorithm(this, ENCRYPTION_ALGORITHM, ENCR_3DES, 0);
- add_algorithm(this, ENCRYPTION_ALGORITHM, ENCR_BLOWFISH, 256);
- add_algorithm(this, INTEGRITY_ALGORITHM, AUTH_HMAC_SHA1_96, 0);
- add_algorithm(this, INTEGRITY_ALGORITHM, AUTH_AES_XCBC_96, 0);
- add_algorithm(this, INTEGRITY_ALGORITHM, AUTH_HMAC_MD5_96, 0);
- add_algorithm(this, EXTENDED_SEQUENCE_NUMBERS, NO_EXT_SEQ_NUMBERS, 0);
- break;
- case PROTO_AH:
- add_algorithm(this, INTEGRITY_ALGORITHM, AUTH_HMAC_SHA1_96, 0);
- add_algorithm(this, INTEGRITY_ALGORITHM, AUTH_AES_XCBC_96, 0);
- add_algorithm(this, INTEGRITY_ALGORITHM, AUTH_HMAC_MD5_96, 0);
- add_algorithm(this, EXTENDED_SEQUENCE_NUMBERS, NO_EXT_SEQ_NUMBERS, 0);
- break;
- default:
- break;
- }
- return &this->public;
-}
-
-/*
- * Describtion in header-file
- */
-proposal_t *proposal_create_from_string(protocol_id_t protocol, const char *algs)
-{
- private_proposal_t *this = (private_proposal_t*)proposal_create(protocol);
- chunk_t string = {(void*)algs, strlen(algs)};
- chunk_t alg;
- status_t status = SUCCESS;
-
- eat_whitespace(&string);
- if (string.len < 1)
- {
- destroy(this);
- return NULL;
- }
-
- /* get all tokens, separated by '-' */
- while (extract_token(&alg, '-', &string))
- {
- status |= add_string_algo(this, alg);
- }
- if (string.len)
- {
- status |= add_string_algo(this, string);
- }
- if (status != SUCCESS)
- {
- destroy(this);
- return NULL;
- }
-
- check_proposal(this);
-
- if (protocol == PROTO_AH || protocol == PROTO_ESP)
- {
- add_algorithm(this, EXTENDED_SEQUENCE_NUMBERS, NO_EXT_SEQ_NUMBERS, 0);
- }
- return &this->public;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 03:11:44 +0000