protocol.c
- Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+ Author: Pekka Riikonen <priikone@silcnet.org>
Copyright (C) 1997 - 2001 Pekka Riikonen
return TRUE;
}
+ /* XXX For now, accept server keys without verification too. We are
+ currently always doing mutual authentication so the proof of posession
+ of the private key is verified, and if server is authenticated in
+ conn auth protocol with public key we MUST have the key already. */
+ return TRUE;
+ /* Rest is unreachable code! */
+
memset(filename, 0, sizeof(filename));
memset(file, 0, sizeof(file));
snprintf(file, sizeof(file) - 1, "serverkey_%s_%d.pub", sock->hostname,
return FALSE;
}
+ if (!silc_hmac_alloc((char *)silc_hmac_get_name(hmac), NULL,
+ &idata->hmac_send)) {
+ silc_cipher_free(idata->send_key);
+ silc_cipher_free(idata->receive_key);
+ silc_free(conn_data);
+ return FALSE;
+ }
+
+ if (!silc_hmac_alloc((char *)silc_hmac_get_name(hmac), NULL,
+ &idata->hmac_receive)) {
+ silc_cipher_free(idata->send_key);
+ silc_cipher_free(idata->receive_key);
+ silc_hmac_free(idata->hmac_send);
+ silc_free(conn_data);
+ return FALSE;
+ }
+
if (is_responder == TRUE) {
silc_cipher_set_key(idata->send_key, keymat->receive_enc_key,
keymat->enc_key_len);
silc_cipher_set_key(idata->receive_key, keymat->send_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(idata->receive_key, keymat->send_iv);
+ silc_hmac_set_key(idata->hmac_send, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
+ silc_hmac_set_key(idata->hmac_receive, keymat->send_hmac_key,
+ keymat->hmac_key_len);
} else {
silc_cipher_set_key(idata->send_key, keymat->send_enc_key,
keymat->enc_key_len);
silc_cipher_set_key(idata->receive_key, keymat->receive_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(idata->receive_key, keymat->receive_iv);
+ silc_hmac_set_key(idata->hmac_send, keymat->send_hmac_key,
+ keymat->hmac_key_len);
+ silc_hmac_set_key(idata->hmac_receive, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
}
idata->rekey = silc_calloc(1, sizeof(*idata->rekey));
idata->rekey->pfs = TRUE;
idata->rekey->ske_group = silc_ske_group_get_number(group);
- /* Save the remote host's public key */
- silc_pkcs_public_key_decode(ske->ke1_payload->pk_data,
- ske->ke1_payload->pk_len, &idata->public_key);
-
/* Save the hash */
if (!silc_hash_alloc(hash->hash->name, &idata->hash)) {
silc_cipher_free(idata->send_key);
silc_cipher_free(idata->receive_key);
+ silc_hmac_free(idata->hmac_send);
+ silc_hmac_free(idata->hmac_receive);
silc_free(conn_data);
return FALSE;
}
- /* Save HMAC key to be used in the communication. */
- if (!silc_hmac_alloc(hmac->hmac->name, NULL, &idata->hmac_send)) {
- silc_cipher_free(idata->send_key);
- silc_cipher_free(idata->receive_key);
- silc_hash_free(idata->hash);
- silc_free(conn_data);
- return FALSE;
- }
- silc_hmac_set_key(idata->hmac_send, keymat->hmac_key, keymat->hmac_key_len);
- idata->hmac_receive = idata->hmac_send;
+ /* Save the remote host's public key */
+ silc_pkcs_public_key_decode(ske->ke1_payload->pk_data,
+ ske->ke1_payload->pk_len, &idata->public_key);
sock->user_data = (void *)conn_data;
+ SILC_LOG_INFO(("%s (%s) security properties: %s %s %s",
+ sock->hostname, sock->ip,
+ idata->send_key->cipher->name,
+ (char *)silc_hmac_get_name(idata->hmac_send),
+ idata->hash->hash->name));
+
return TRUE;
}
/* Check remote host version string */
SilcSKEStatus silc_ske_check_version(SilcSKE ske, unsigned char *version,
- uint32 len)
+ uint32 len, void *context)
{
SilcSKEStatus status = SILC_SKE_STATUS_OK;
char *cp;
if (maj != maj2)
status = SILC_SKE_STATUS_BAD_VERSION;
- if (min < min2)
+ if (min > min2)
+ status = SILC_SKE_STATUS_BAD_VERSION;
+
+ /* XXX < 0.6 is not allowed */
+ if (maj == 0 && min < 5)
status = SILC_SKE_STATUS_BAD_VERSION;
+ /* XXX backward support for 0.6.1 */
+ if (maj == 0 && min == 6 && build < 2)
+ ske->backward_version = 1;
+
return status;
}
SILC_LOG_DEBUG(("Start"));
if (ske->status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
- ske->status));
- SILC_LOG_DEBUG(("Error (type %d) during Key Exchange protocol",
- ske->status));
+ SILC_LOG_WARNING(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(ske->status)));
+ SILC_LOG_DEBUG(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(ske->status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
/* Send Ok to the other end. We will end the protocol as responder
sends Ok to us when we will take the new keys into use. */
if (ctx->responder == FALSE) {
- silc_ske_end(ctx->ske, silc_server_protocol_ke_send_packet, context);
+ silc_ske_end(ctx->ske);
/* End the protocol on the next round */
protocol->state = SILC_PROTOCOL_STATE_END;
function. */
if (ctx->responder == TRUE) {
protocol->state++;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 100000);
+ silc_protocol_execute(protocol, server->schedule, 0, 100000);
}
}
ctx->ske = ske;
ske->rng = server->rng;
+ silc_ske_set_callbacks(ske, silc_server_protocol_ke_send_packet, NULL,
+ silc_server_protocol_ke_verify_key,
+ silc_server_protocol_ke_continue,
+ silc_ske_check_version, context);
+
if (ctx->responder == TRUE) {
/* 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,
- ctx->packet->buffer, FALSE,
- NULL, NULL);
+ ctx->packet->buffer, TRUE);
} else {
SilcSKEStartPayload *start_payload;
/* Assemble security properties. */
- silc_ske_assemble_security_properties(ske, SILC_SKE_SP_FLAG_NONE,
+ silc_ske_assemble_security_properties(ske, SILC_SKE_SP_FLAG_MUTUAL,
silc_version_string,
&start_payload);
/* Start the key exchange by sending our security properties
to the remote end. */
status = silc_ske_initiator_start(ske, ctx->rng, ctx->sock,
- start_payload,
- silc_server_protocol_ke_send_packet,
- context);
+ start_payload);
}
/* Return now if the procedure is pending. */
return;
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
- status));
- SILC_LOG_DEBUG(("Error (type %d) during Key Exchange protocol",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
+ SILC_LOG_DEBUG(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
/* Advance protocol state and call the next state if we are responder */
protocol->state++;
if (ctx->responder == TRUE)
- silc_protocol_execute(protocol, server->timeout_queue, 0, 100000);
+ silc_protocol_execute(protocol, server->schedule, 0, 100000);
}
break;
case 2:
*/
if (ctx->responder == TRUE) {
/* Sends the selected security properties to the initiator. */
- status =
- silc_ske_responder_phase_1(ctx->ske,
- ctx->ske->start_payload,
- silc_server_protocol_ke_send_packet,
- context);
+ status = silc_ske_responder_phase_1(ctx->ske,
+ ctx->ske->start_payload);
} else {
/* Call Phase-1 function. This processes the Key Exchange Start
paylaod reply we just got from the responder. The callback
function will receive the processed payload where we will
save it. */
- status = silc_ske_initiator_phase_1(ctx->ske, ctx->packet->buffer,
- NULL, NULL);
+ status = silc_ske_initiator_phase_1(ctx->ske, ctx->packet->buffer);
}
/* Return now if the procedure is pending. */
return;
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
- status));
- SILC_LOG_DEBUG(("Error (type %d) during Key Exchange protocol",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
+ SILC_LOG_DEBUG(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
/* Advance protocol state and call next state if we are initiator */
protocol->state++;
if (ctx->responder == FALSE)
- silc_protocol_execute(protocol, server->timeout_queue, 0, 100000);
+ silc_protocol_execute(protocol, server->schedule, 0, 100000);
}
break;
case 3:
the initiator. This also creates our parts of the Diffie
Hellman algorithm. The silc_server_protocol_ke_continue
will be called after the public key has been verified. */
- status =
- silc_ske_responder_phase_2(ctx->ske, ctx->packet->buffer,
- silc_server_protocol_ke_verify_key,
- context,
- silc_server_protocol_ke_continue,
- context);
+ status = silc_ske_responder_phase_2(ctx->ske, ctx->packet->buffer);
} else {
/* Call the Phase-2 function. This creates Diffie Hellman
key exchange parameters and sends our public part inside
Key Exhange 1 Payload to the responder. */
- status =
- silc_ske_initiator_phase_2(ctx->ske,
- server->public_key,
- server->private_key,
- silc_server_protocol_ke_send_packet,
- context);
+ status = silc_ske_initiator_phase_2(ctx->ske,
+ server->public_key,
+ server->private_key);
protocol->state++;
}
return;
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
- status));
- SILC_LOG_DEBUG(("Error (type %d) during Key Exchange protocol",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
+ SILC_LOG_DEBUG(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
}
if (ctx->responder == TRUE) {
/* This creates the key exchange material and sends our
public parts to the initiator inside Key Exchange 2 Payload. */
- status =
- silc_ske_responder_finish(ctx->ske,
- server->public_key, server->private_key,
- SILC_SKE_PK_TYPE_SILC,
- silc_server_protocol_ke_send_packet,
- context);
+ status = silc_ske_responder_finish(ctx->ske,
+ server->public_key,
+ server->private_key,
+ SILC_SKE_PK_TYPE_SILC);
/* End the protocol on the next round */
protocol->state = SILC_PROTOCOL_STATE_END;
/* Finish the protocol. This verifies the Key Exchange 2 payload
sent by responder. The silc_server_protocol_ke_continue will
be called after the public key has been verified. */
- status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer,
- silc_server_protocol_ke_verify_key,
- context,
- silc_server_protocol_ke_continue,
- context);
+ status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer);
}
/* Return now if the procedure is pending. */
return;
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
- status));
- SILC_LOG_DEBUG(("Error (type %d) during Key Exchange protocol",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
+ SILC_LOG_DEBUG(("Error (%s) during Key Exchange protocol",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
}
keymat);
if (status != SILC_SKE_STATUS_OK) {
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
silc_ske_free_key_material(keymat);
return;
}
/* Send Ok to the other end if we are responder. If we are initiator
we have sent this already. */
if (ctx->responder == TRUE)
- silc_ske_end(ctx->ske, silc_server_protocol_ke_send_packet, context);
+ silc_ske_end(ctx->ske);
/* Unregister the timeout task since the protocol has ended.
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(server->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(server->schedule, ctx->timeout_task);
/* Call the final callback */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
}
*/
/* Send abort notification */
- silc_ske_abort(ctx->ske, ctx->ske->status,
- silc_server_protocol_ke_send_packet,
- context);
+ silc_ske_abort(ctx->ske, ctx->ske->status);
/* Unregister the timeout task since the protocol has ended.
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(server->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(server->schedule, ctx->timeout_task);
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->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(server->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(server->schedule, ctx->timeout_task);
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
break;
SILC_STR_END);
/* Verify signature */
- if (silc_pkcs_verify(pkcs, sign, sign_len, auth->data, auth->len)) {
+ if (silc_pkcs_verify_with_hash(pkcs, ske->prop->hash, sign, sign_len,
+ auth->data, auth->len)) {
silc_pkcs_free(pkcs);
silc_buffer_free(auth);
return TRUE;
static int
silc_server_get_public_key_auth(SilcServer server,
- SilcPublicKey pub_key,
unsigned char *auth_data,
uint32 *auth_data_len,
SilcSKE ske)
SilcPKCS pkcs;
SilcBuffer auth;
- if (!pub_key)
- return FALSE;
-
- silc_pkcs_alloc(pub_key->name, &pkcs);
- if (!silc_pkcs_public_key_set(pkcs, pub_key)) {
- silc_pkcs_free(pkcs);
- return FALSE;
- }
+ pkcs = server->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);
return TRUE;
}
- silc_pkcs_free(pkcs);
silc_buffer_free(auth);
return FALSE;
}
if (ret == -1) {
SILC_LOG_DEBUG(("Bad payload in authentication packet"));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
if (payload_len != ctx->packet->buffer->len) {
SILC_LOG_DEBUG(("Bad payload in authentication packet"));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
conn_type > SILC_SOCKET_TYPE_ROUTER) {
SILC_LOG_ERROR(("Bad connection type %d", conn_type));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
if (ret == -1) {
SILC_LOG_DEBUG(("Bad payload in authentication packet"));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
}
SILC_LOG_DEBUG(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
break;
SILC_LOG_DEBUG(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
}
SILC_LOG_ERROR(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
}
SILC_LOG_DEBUG(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
break;
SILC_LOG_DEBUG(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
}
SILC_LOG_ERROR(("Remote connection not configured"));
SILC_LOG_ERROR(("Authentication failed"));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
silc_free(auth_data);
return;
SILC_LOG_DEBUG(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
break;
SILC_LOG_DEBUG(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
}
SILC_LOG_ERROR(("Authentication failed"));
silc_free(auth_data);
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue,
+ silc_protocol_execute(protocol, server->schedule,
0, 300000);
return;
}
/* Advance protocol state. */
protocol->state = SILC_PROTOCOL_STATE_END;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, server->schedule, 0, 0);
} else {
/*
unsigned char sign[1024];
/* Public key authentication */
- silc_server_get_public_key_auth(server, ctx->auth_data,
- sign, &auth_data_len,
+ silc_server_get_public_key_auth(server, sign, &auth_data_len,
ctx->ske);
auth_data = silc_calloc(auth_data_len, sizeof(*auth_data));
memcpy(auth_data, sign, auth_data_len);
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(server->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(server->schedule, ctx->timeout_task);
/* Protocol has ended, call the final callback */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
}
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(server->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(server->schedule, ctx->timeout_task);
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
}
This was the timeout task to be executed if the protocol is
not completed fast enough. */
if (ctx->timeout_task)
- silc_task_unregister(server->timeout_queue, ctx->timeout_task);
+ silc_schedule_task_del(server->schedule, ctx->timeout_task);
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
break;
silc_cipher_set_key(idata->send_key, keymat->receive_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(idata->send_key, keymat->receive_iv);
+ silc_hmac_set_key(idata->hmac_send, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
} else {
silc_cipher_set_key(idata->receive_key, keymat->send_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(idata->receive_key, keymat->send_iv);
+ silc_hmac_set_key(idata->hmac_receive, keymat->send_hmac_key,
+ keymat->hmac_key_len);
}
} else {
if (send) {
silc_cipher_set_key(idata->send_key, keymat->send_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(idata->send_key, keymat->send_iv);
+ silc_hmac_set_key(idata->hmac_send, keymat->send_hmac_key,
+ keymat->hmac_key_len);
} else {
silc_cipher_set_key(idata->receive_key, keymat->receive_enc_key,
keymat->enc_key_len);
silc_cipher_set_iv(idata->receive_key, keymat->receive_iv);
+ silc_hmac_set_key(idata->hmac_receive, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
}
}
- if (send) {
- silc_hmac_alloc(idata->hmac_send->hmac->name, NULL, &idata->hmac_send);
- silc_hmac_set_key(idata->hmac_send, keymat->hmac_key,
- keymat->hmac_key_len);
- } else {
- silc_hmac_free(idata->hmac_receive);
- idata->hmac_receive = idata->hmac_send;
- }
-
/* Save the current sending encryption key */
if (!send) {
memset(idata->rekey->send_enc_key, 0, idata->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, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
+ return;
}
ctx->ske = silc_ske_alloc();
silc_ske_get_group_by_number(idata->rekey->ske_group,
&ctx->ske->prop->group);
- status = silc_ske_responder_phase_2(ctx->ske, ctx->packet->buffer,
- NULL, NULL, NULL, NULL);
+ silc_ske_set_callbacks(ctx->ske,
+ silc_server_protocol_rekey_send_packet,
+ NULL, NULL, NULL, silc_ske_check_version,
+ context);
+
+ status = silc_ske_responder_phase_2(ctx->ske, ctx->packet->buffer);
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Re-key (PFS)",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Re-key (PFS)",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
/* Advance the protocol state */
protocol->state++;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, server->schedule, 0, 0);
} else {
/*
* Do normal and simple re-key.
silc_ske_get_group_by_number(idata->rekey->ske_group,
&ctx->ske->prop->group);
- status =
- silc_ske_initiator_phase_2(ctx->ske, NULL, NULL,
- silc_server_protocol_rekey_send_packet,
- context);
-
+ silc_ske_set_callbacks(ctx->ske,
+ silc_server_protocol_rekey_send_packet,
+ NULL, NULL, NULL, silc_ske_check_version,
+ context);
+
+ status = silc_ske_initiator_phase_2(ctx->ske, NULL, NULL);
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Re-key (PFS)",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Re-key (PFS)",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
return;
}
* Send our KE packe to the initiator now that we've processed
* the initiator's KE packet.
*/
- status =
- silc_ske_responder_finish(ctx->ske, NULL, NULL,
- SILC_SKE_PK_TYPE_SILC,
- silc_server_protocol_rekey_send_packet,
- context);
-
- if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Re-key (PFS)",
- status));
-
- protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
- return;
- }
+ status = silc_ske_responder_finish(ctx->ske, NULL, NULL,
+ SILC_SKE_PK_TYPE_SILC);
+ if (status != SILC_SKE_STATUS_OK) {
+ SILC_LOG_WARNING(("Error (%s) during Re-key (PFS)",
+ silc_ske_map_status(status)));
+
+ protocol->state = SILC_PROTOCOL_STATE_ERROR;
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
+ return;
+ }
}
} else {
if (ctx->packet->type != SILC_PACKET_KEY_EXCHANGE_2) {
/* Error in protocol */
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
+ return;
}
- status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer,
- NULL, NULL, NULL, NULL);
+ status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer);
if (status != SILC_SKE_STATUS_OK) {
- SILC_LOG_WARNING(("Error (type %d) during Re-key (PFS)",
- status));
+ SILC_LOG_WARNING(("Error (%s) during Re-key (PFS)",
+ silc_ske_map_status(status)));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- silc_protocol_execute(protocol, server->timeout_queue, 0, 300000);
+ silc_protocol_execute(protocol, server->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, server->timeout_queue, 0, 0);
+ silc_protocol_execute(protocol, server->schedule, 0, 300000);
+ return;
}
/* 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, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
break;
if (ctx->pfs == TRUE) {
/* Send abort notification */
- silc_ske_abort(ctx->ske, ctx->ske->status,
- silc_server_protocol_ke_send_packet,
- context);
+ silc_ske_abort(ctx->ske, ctx->ske->status);
}
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
break;
/* On error the final callback is always called. */
if (protocol->final_callback)
- silc_protocol_execute_final(protocol, server->timeout_queue);
+ silc_protocol_execute_final(protocol, server->schedule);
else
silc_protocol_free(protocol);
break;
silc_server_protocol_key_exchange);
silc_protocol_register(SILC_PROTOCOL_SERVER_REKEY,
silc_server_protocol_rekey);
+ silc_protocol_register(SILC_PROTOCOL_SERVER_BACKUP,
+ silc_server_protocol_backup);
}
/* Unregisters protocols */
silc_server_protocol_key_exchange);
silc_protocol_unregister(SILC_PROTOCOL_SERVER_REKEY,
silc_server_protocol_rekey);
+ silc_protocol_unregister(SILC_PROTOCOL_SERVER_BACKUP,
+ silc_server_protocol_backup);
}
projects / silc.git / blobdiff