SILC_TASK_CALLBACK(silc_client_protocol_key_exchange);
SILC_TASK_CALLBACK(silc_client_protocol_rekey);
-extern char *silc_version_string;
-
/*
* Key Exhange protocol functions
*/
/* Allocate cipher to be used in the communication */
silc_cipher_alloc(cipher->cipher->name, &conn->send_key);
silc_cipher_alloc(cipher->cipher->name, &conn->receive_key);
-
- conn->send_key->cipher->set_key(conn->send_key->context,
- keymat->send_enc_key,
- keymat->enc_key_len);
- conn->send_key->set_iv(conn->send_key, keymat->send_iv);
- conn->receive_key->cipher->set_key(conn->receive_key->context,
- keymat->receive_enc_key,
- keymat->enc_key_len);
- conn->receive_key->set_iv(conn->receive_key, keymat->receive_iv);
-
- /* Allocate PKCS to be used */
-#if 0
- /* XXX Do we ever need to allocate PKCS for the connection??
- If yes, we need to change KE protocol to get the initiators
- public key. */
- silc_pkcs_alloc(pkcs->pkcs->name, &conn->public_Key);
- silc_pkcs_set_public_key(conn->public_key, ske->ke2_payload->pk_data,
- ske->ke2_payload->pk_len);
-#endif
-
+ silc_hmac_alloc((char *)silc_hmac_get_name(hmac), NULL, &conn->hmac_send);
+ silc_hmac_alloc((char *)silc_hmac_get_name(hmac), NULL, &conn->hmac_receive);
+
+ silc_cipher_set_key(conn->send_key, keymat->send_enc_key,
+ keymat->enc_key_len);
+ silc_cipher_set_iv(conn->send_key, keymat->send_iv);
+ silc_cipher_set_key(conn->receive_key, keymat->receive_enc_key,
+ keymat->enc_key_len);
+ silc_cipher_set_iv(conn->receive_key, keymat->receive_iv);
+ silc_hmac_set_key(conn->hmac_send, keymat->send_hmac_key,
+ keymat->hmac_key_len);
+ silc_hmac_set_key(conn->hmac_receive, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
+
+ /* Rekey stuff */
conn->rekey = silc_calloc(1, sizeof(*conn->rekey));
conn->rekey->send_enc_key =
silc_calloc(keymat->enc_key_len / 8,
conn->rekey->pfs = TRUE;
conn->rekey->ske_group = silc_ske_group_get_number(group);
- /* Save HMAC key to be used in the communication. */
- silc_hmac_alloc(hmac->hmac->name, NULL, &conn->hmac_send);
- silc_hmac_set_key(conn->hmac_send, keymat->hmac_key, keymat->hmac_key_len);
- conn->hmac_receive = conn->hmac_send;
-
/* Save the HASH function */
silc_hash_alloc(hash->hash->name, &conn->hash);
}
if (cp)
build = atoi(cp + 1);
- cp = silc_version_string + 9;
+ cp = client->silc_client_version + 9;
if (!cp)
status = SILC_SKE_STATUS_BAD_VERSION;
status = SILC_SKE_STATUS_BAD_VERSION;
if (status != SILC_SKE_STATUS_OK)
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
"We don't support server version `%s'", version);
return status;
if (ske->status != SILC_SKE_STATUS_OK) {
if (ske->status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY) {
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
"Received unsupported server %s public key",
ctx->sock->hostname);
} else if (ske->status == SILC_SKE_STATUS_PUBLIC_KEY_NOT_PROVIDED) {
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
"Remote host did not send its public key, even though "
"it must send it");
} else {
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
"Error during key exchange protocol with server %s",
ctx->sock->hostname);
}
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
return;
}
function. */
if (ctx->responder == TRUE) {
protocol->state++;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 100000);
+ silc_protocol_execute(protocol, client->schedule, 0, 100000);
}
}
/* Start the key exchange by processing the received security
properties packet from initiator. */
status = silc_ske_responder_start(ske, ctx->rng, ctx->sock,
- silc_version_string,
+ client->silc_client_version,
ctx->packet->buffer, TRUE);
} else {
SilcSKEStartPayload *start_payload;
/* Assemble security properties. */
silc_ske_assemble_security_properties(ske, SILC_SKE_SP_FLAG_NONE,
- silc_version_string,
+ client->silc_client_version,
&start_payload);
/* Start the key exchange by sending our security properties
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
return;
}
/* Advance protocol state and call the next state if we are responder */
protocol->state++;
if (ctx->responder == TRUE)
- silc_protocol_execute(protocol, client->timeout_queue, 0, 100000);
+ silc_protocol_execute(protocol, client->schedule, 0, 100000);
}
break;
case 2:
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
return;
}
/* Advance protocol state and call next state if we are initiator */
protocol->state++;
if (ctx->responder == FALSE)
- silc_protocol_execute(protocol, client->timeout_queue, 0, 100000);
+ silc_protocol_execute(protocol, client->schedule, 0, 100000);
}
break;
case 3:
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
return;
}
}
if (status != SILC_SKE_STATUS_OK) {
if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY) {
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
"Received unsupported server %s public key",
ctx->sock->hostname);
} else {
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
"Error during key exchange protocol with server %s",
ctx->sock->hostname);
}
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
return;
}
}
keymat);
if (status != SILC_SKE_STATUS_OK) {
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
silc_ske_free_key_material(keymat);
return;
}
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(client->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(client->schedule, ctx->timeout_task);
/* Protocol has ended, call the final callback */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
}
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(client->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(client->schedule, ctx->timeout_task);
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
static int
silc_client_get_public_key_auth(SilcClient client,
- char *filepath,
+ SilcClientConnection conn,
unsigned char *auth_data,
uint32 *auth_data_len,
SilcSKE ske)
int len;
SilcPKCS pkcs;
SilcBuffer auth;
- SilcPublicKey pub_key;
- if (!silc_pkcs_load_public_key(filepath,&pub_key, SILC_PKCS_FILE_PEM))
- if (!silc_pkcs_load_public_key(filepath, &pub_key, SILC_PKCS_FILE_BIN))
- return FALSE;
-
- silc_pkcs_alloc(pub_key->name, &pkcs);
- if (!silc_pkcs_public_key_set(pkcs, pub_key)) {
- silc_pkcs_free(pkcs);
- silc_pkcs_public_key_free(pub_key);
- return FALSE;
- }
+ /* Use our default key */
+ pkcs = client->pkcs;
/* Make the authentication data. Protocol says it is HASH plus
KE Start Payload. */
ske->start_payload_copy->len),
SILC_STR_END);
- if (silc_pkcs_sign(pkcs, auth->data, auth->len, auth_data, auth_data_len)) {
- silc_pkcs_free(pkcs);
+ if (silc_pkcs_sign_with_hash(pkcs, ske->prop->hash, auth->data,
+ auth->len, auth_data, auth_data_len)) {
silc_buffer_free(auth);
- silc_pkcs_public_key_free(pub_key);
return TRUE;
}
- silc_pkcs_free(pkcs);
silc_buffer_free(auth);
- silc_pkcs_public_key_free(pub_key);
return FALSE;
}
SILC_PACKET_CONNECTION_AUTH,
NULL, 0, NULL, NULL,
packet->data, packet->len, TRUE);
-
- if (auth_data) {
- memset(auth_data, 0, auth_data_len);
- silc_free(auth_data);
- }
silc_buffer_free(packet);
/* Next state is end of protocol */
*/
unsigned char *auth_data = NULL;
uint32 auth_data_len = 0;
+ unsigned char sign[1024];
switch(ctx->auth_meth) {
case SILC_AUTH_NONE:
break;
}
- client->ops->say(client, conn,
+ client->ops->say(client, conn, SILC_CLIENT_MESSAGE_INFO,
"Password authentication required by server %s",
ctx->sock->hostname);
client->ops->ask_passphrase(client, conn,
break;
case SILC_AUTH_PUBLIC_KEY:
- {
- unsigned char sign[1024];
-
+ if (!ctx->auth_data) {
/* Public key authentication */
- silc_client_get_public_key_auth(client, ctx->auth_data,
- sign, &auth_data_len,
+ silc_client_get_public_key_auth(client, conn, sign, &auth_data_len,
ctx->ske);
- auth_data = silc_calloc(auth_data_len, sizeof(*auth_data));
- memcpy(auth_data, sign, auth_data_len);
- break;
+ auth_data = sign;
+ } else {
+ auth_data = ctx->auth_data;
+ auth_data_len = ctx->auth_data_len;
}
+
+ break;
}
silc_client_conn_auth_continue(auth_data,
/* Protocol has ended, call the final callback */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
}
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
}
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
silc_cipher_set_key(conn->send_key, keymat->receive_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(conn->send_key, keymat->receive_iv);
+ silc_hmac_set_key(conn->hmac_send, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
} else {
silc_cipher_set_key(conn->receive_key, keymat->send_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(conn->receive_key, keymat->send_iv);
+ silc_hmac_set_key(conn->hmac_receive, keymat->send_hmac_key,
+ keymat->hmac_key_len);
}
} else {
if (send) {
silc_cipher_set_key(conn->send_key, keymat->send_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(conn->send_key, keymat->send_iv);
+ silc_hmac_set_key(conn->hmac_send, keymat->send_hmac_key,
+ keymat->hmac_key_len);
} else {
silc_cipher_set_key(conn->receive_key, keymat->receive_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(conn->receive_key, keymat->receive_iv);
+ silc_hmac_set_key(conn->hmac_receive, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
}
}
- if (send) {
- silc_hmac_alloc(conn->hmac_receive->hmac->name, NULL, &conn->hmac_send);
- silc_hmac_set_key(conn->hmac_send, keymat->hmac_key,
- keymat->hmac_key_len);
- } else {
- silc_hmac_free(conn->hmac_receive);
- conn->hmac_receive = conn->hmac_send;
- }
-
/* Save the current sending encryption key */
if (!send) {
memset(conn->rekey->send_enc_key, 0, conn->rekey->enc_key_len);
if (ctx->packet->type != SILC_PACKET_KEY_EXCHANGE_1) {
/* Error in protocol */
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
}
ctx->ske = silc_ske_alloc();
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
return;
}
/* Advance the protocol state */
protocol->state++;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
} else {
/*
* Do normal and simple re-key.
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
return;
}
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
return;
}
}
if (ctx->packet->type != SILC_PACKET_KEY_EXCHANGE_2) {
/* Error in protocol */
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
}
status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer);
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
return;
}
}
if (ctx->packet->type != SILC_PACKET_REKEY_DONE) {
/* Error in protocol */
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, client->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
}
/* We received the REKEY_DONE packet and all packets after this is
/* Protocol has ended, call the final callback */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, client->timeout_queue);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
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