SILC_TASK_CALLBACK(silc_client_protocol_key_exchange);
SILC_TASK_CALLBACK(silc_client_protocol_rekey);
-extern char *silc_version_string;
-
/*
* Key Exhange protocol functions
*/
packet->data, packet->len, TRUE);
}
-/* Callback that is called when we have received KE2 payload from
+/* Public key verification callback. Called by the application. */
+
+typedef struct {
+ SilcSKE ske;
+ SilcSKEVerifyCbCompletion completion;
+ void *completion_context;
+} *VerifyKeyContext;
+
+static void silc_client_verify_key_cb(bool success, void *context)
+{
+ VerifyKeyContext verify = (VerifyKeyContext)context;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ /* Call the completion callback back to the SKE */
+ verify->completion(verify->ske, success ? SILC_SKE_STATUS_OK :
+ SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY,
+ verify->completion_context);
+
+ silc_free(verify);
+}
+
+/* Callback that is called when we have received KE payload from
responder. We try to verify the public key now. */
-SilcSKEStatus silc_client_protocol_ke_verify_key(SilcSKE ske,
- unsigned char *pk_data,
- uint32 pk_len,
- SilcSKEPKType pk_type,
- void *context)
+void silc_client_protocol_ke_verify_key(SilcSKE ske,
+ unsigned char *pk_data,
+ uint32 pk_len,
+ SilcSKEPKType pk_type,
+ void *context,
+ SilcSKEVerifyCbCompletion completion,
+ void *completion_context)
{
SilcProtocol protocol = (SilcProtocol)context;
SilcClientKEInternalContext *ctx =
(SilcClientKEInternalContext *)protocol->context;
SilcClient client = (SilcClient)ctx->client;
+ VerifyKeyContext verify;
SILC_LOG_DEBUG(("Start"));
- /* Verify public key from user. */
- if (!client->ops->verify_public_key(client, ctx->sock->user_data,
- ctx->sock->type,
- pk_data, pk_len, pk_type))
- return SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY;
+ verify = silc_calloc(1, sizeof(*verify));
+ verify->ske = ske;
+ verify->completion = completion;
+ verify->completion_context = completion_context;
- return SILC_SKE_STATUS_OK;
+ /* Verify public key from user. */
+ client->internal->ops->verify_public_key(client, ctx->sock->user_data,
+ ctx->sock->type,
+ pk_data, pk_len, pk_type,
+ silc_client_verify_key_cb, verify);
}
/* Sets the negotiated key material into use for particular connection. */
SilcPKCS pkcs,
SilcHash hash,
SilcHmac hmac,
- SilcSKEDiffieHellmanGroup group)
+ SilcSKEDiffieHellmanGroup group,
+ bool is_responder)
{
SilcClientConnection conn = (SilcClientConnection)sock->user_data;
/* 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);
+ 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);
+
+ if (is_responder == TRUE) {
+ 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_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_send, keymat->receive_hmac_key,
+ keymat->hmac_key_len);
+ silc_hmac_set_key(conn->hmac_receive, keymat->send_hmac_key,
+ keymat->hmac_key_len);
+ } else {
+ 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);
+ }
- 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
-
+ /* Rekey stuff */
conn->rekey = silc_calloc(1, sizeof(*conn->rekey));
- conn->rekey->send_enc_key =
- silc_calloc(keymat->enc_key_len / 8,
- sizeof(*conn->rekey->send_enc_key));
- memcpy(conn->rekey->send_enc_key,
- keymat->send_enc_key, keymat->enc_key_len / 8);
+ conn->rekey->send_enc_key = silc_memdup(keymat->send_enc_key,
+ keymat->enc_key_len / 8);
conn->rekey->enc_key_len = keymat->enc_key_len / 8;
if (ske->start_payload->flags & SILC_SKE_SP_FLAG_PFS)
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);
}
/* Checks the version string of the server. */
SilcSKEStatus silc_ske_check_version(SilcSKE ske, unsigned char *version,
- uint32 len)
+ uint32 len, void *context)
{
SilcClientConnection conn = (SilcClientConnection)ske->sock->user_data;
SilcClient client = (SilcClient)ske->user_data;
if (cp)
build = atoi(cp + 1);
- cp = silc_version_string + 9;
+ cp = client->internal->silc_client_version + 9;
if (!cp)
status = SILC_SKE_STATUS_BAD_VERSION;
if (maj != maj2)
status = SILC_SKE_STATUS_BAD_VERSION;
- if (min < min2)
- status = SILC_SKE_STATUS_BAD_VERSION;
+
+ /* XXX backward support for 0.6.1 */
+ if (maj == 0 && min == 6 && build < 2)
+ ske->backward_version = 1;
if (status != SILC_SKE_STATUS_OK)
- client->ops->say(client, conn,
- "We don't support server version `%s'", version);
+ client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
+ "We don't support server version `%s'",
+ version);
return status;
}
+/* Callback that is called by the SKE to indicate that it is safe to
+ continue the execution of the protocol. Is given as argument to the
+ silc_ske_initiator_finish or silc_ske_responder_phase_2 functions.
+ This is called due to the fact that the public key verification
+ process is asynchronous and we must not continue the protocl until
+ the public key has been verified and this callback is called. */
+
+static void silc_client_protocol_ke_continue(SilcSKE ske,
+ void *context)
+{
+ SilcProtocol protocol = (SilcProtocol)context;
+ SilcClientKEInternalContext *ctx =
+ (SilcClientKEInternalContext *)protocol->context;
+ SilcClient client = (SilcClient)ctx->client;
+ SilcClientConnection conn = ctx->sock->user_data;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ if (ske->status != SILC_SKE_STATUS_OK) {
+ /* Call failure client operation */
+ client->internal->ops->failure(client, conn, protocol,
+ (void *)ske->status);
+ protocol->state = SILC_PROTOCOL_STATE_ERROR;
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
+ return;
+ }
+
+ /* Send Ok to the other end. We will end the protocol as server
+ sends Ok to us when we will take the new keys into use. Do this
+ if we are initiator. This is happens when this callback was sent
+ to silc_ske_initiator_finish function. */
+ if (ctx->responder == FALSE) {
+ silc_ske_end(ctx->ske);
+
+ /* End the protocol on the next round */
+ protocol->state = SILC_PROTOCOL_STATE_END;
+ }
+
+ /* Advance protocol state and call the next state if we are responder.
+ This happens when this callback was sent to silc_ske_responder_phase_2
+ function. */
+ if (ctx->responder == TRUE) {
+ protocol->state++;
+ silc_protocol_execute(protocol, client->schedule, 0, 100000);
+ }
+}
+
/* Performs key exchange protocol. This is used for both initiator
and responder key exchange. This may be called recursively. */
(SilcClientKEInternalContext *)protocol->context;
SilcClient client = (SilcClient)ctx->client;
SilcClientConnection conn = ctx->sock->user_data;
- SilcSKEStatus status = 0;
+ SilcSKEStatus status = SILC_SKE_STATUS_OK;
SILC_LOG_DEBUG(("Start"));
SilcSKE ske;
/* Allocate Key Exchange object */
- ske = silc_ske_alloc();
- ctx->ske = ske;
- ske->rng = client->rng;
- ske->user_data = (void *)client;
+ ctx->ske = ske = silc_ske_alloc(client->rng, client);
+
+ silc_ske_set_callbacks(ske, ctx->send_packet, NULL,
+ ctx->verify,
+ silc_client_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, TRUE,
- NULL, NULL);
+ status =
+ silc_ske_responder_start(ske, ctx->rng, ctx->sock,
+ client->internal->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,
- &start_payload);
+ silc_ske_assemble_security_properties(
+ ske, SILC_SKE_SP_FLAG_MUTUAL,
+ client->internal->silc_client_version,
+ &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,
- ctx->send_packet,
- context);
+ start_payload);
}
+ /* Return now if the procedure is pending */
+ if (status == SILC_SKE_STATUS_PENDING)
+ return;
+
if (status != SILC_SKE_STATUS_OK) {
SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
status));
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 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)
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 100000);
+ silc_protocol_execute(protocol, client->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,
- ctx->send_packet,
- context);
+ status = silc_ske_responder_phase_1(ctx->ske);
} 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);
}
if (status != SILC_SKE_STATUS_OK) {
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 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)
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 100000);
+ silc_protocol_execute(protocol, client->schedule, 0, 100000);
}
break;
case 3:
if (ctx->responder == TRUE) {
/* Process the received Key Exchange 1 Payload packet from
the initiator. This also creates our parts of the Diffie
- Hellman algorithm. */
- status = silc_ske_responder_phase_2(ctx->ske, ctx->packet->buffer,
- ctx->verify, context, NULL, NULL);
+ Hellman algorithm. The silc_client_protocol_ke_continue will
+ be called after the public key has been verified. */
+ 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
status = silc_ske_initiator_phase_2(ctx->ske,
client->public_key,
client->private_key,
- ctx->send_packet,
- context);
+ SILC_SKE_PK_TYPE_SILC);
+ protocol->state++;
}
+ /* Return now if the procedure is pending */
+ if (status == SILC_SKE_STATUS_PENDING)
+ return;
+
if (status != SILC_SKE_STATUS_OK) {
SILC_LOG_WARNING(("Error (type %d) during Key Exchange protocol",
status));
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 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)
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 100000);
}
break;
case 4:
status =
silc_ske_responder_finish(ctx->ske,
client->public_key, client->private_key,
- SILC_SKE_PK_TYPE_SILC,
- ctx->send_packet,
- context);
- status = 0;
+ SILC_SKE_PK_TYPE_SILC);
+
+ /* End the protocol on the next round */
+ protocol->state = SILC_PROTOCOL_STATE_END;
} else {
/* Finish the protocol. This verifies the Key Exchange 2 payload
- sent by responder. */
- status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer,
- ctx->verify, context, NULL, NULL);
+ sent by responder. The silc_client_protocol_ke_continue will
+ be called after the public key has been verified. */
+ status = silc_ske_initiator_finish(ctx->ske, ctx->packet->buffer);
}
- if (status != SILC_SKE_STATUS_OK) {
+ /* Return now if the procedure is pending */
+ if (status == SILC_SKE_STATUS_PENDING)
+ return;
+ if (status != SILC_SKE_STATUS_OK) {
if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY) {
- client->ops->say(client, conn,
- "Received unsupported server %s public key",
- ctx->sock->hostname);
+ client->internal->ops->say(
+ client, conn, SILC_CLIENT_MESSAGE_AUDIT,
+ "Received unsupported server %s public key",
+ ctx->sock->hostname);
} else {
- client->ops->say(client, conn,
+ client->internal->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;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
return;
}
-
- /* Send Ok to the other end. We will end the protocol as server
- sends Ok to us when we will take the new keys into use. */
- if (ctx->responder == FALSE)
- silc_ske_end(ctx->ske, ctx->send_packet, context);
-
- /* End the protocol on the next round */
- protocol->state = SILC_PROTOCOL_STATE_END;
}
break;
keymat);
if (status != SILC_SKE_STATUS_OK) {
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 300000);
+ silc_protocol_execute(protocol, client->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, ctx->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(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)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
}
*/
/* Send abort notification */
- silc_ske_abort(ctx->ske, ctx->ske->status,
- ctx->send_packet, context);
+ silc_ske_abort(ctx->ske, ctx->ske->status);
/* On error the final callback is always called. */
if (protocol->final_callback)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ 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)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ 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;
}
+/* Continues the connection authentication protocol. This funtion may
+ be called directly or used as SilcAskPassphrase callback. */
+
+static void
+silc_client_conn_auth_continue(unsigned char *auth_data,
+ uint32 auth_data_len, void *context)
+{
+ SilcProtocol protocol = (SilcProtocol)context;
+ SilcClientConnAuthInternalContext *ctx =
+ (SilcClientConnAuthInternalContext *)protocol->context;
+ SilcClient client = (SilcClient)ctx->client;
+ SilcBuffer packet;
+ int payload_len = 0;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ payload_len = 4 + auth_data_len;
+ packet = silc_buffer_alloc(payload_len);
+ silc_buffer_pull_tail(packet, SILC_BUFFER_END(packet));
+ silc_buffer_format(packet,
+ SILC_STR_UI_SHORT(payload_len),
+ SILC_STR_UI_SHORT(SILC_SOCKET_TYPE_CLIENT),
+ SILC_STR_UI_XNSTRING(auth_data, auth_data_len),
+ SILC_STR_END);
+
+ /* Send the packet to server */
+ silc_client_packet_send(client, ctx->sock,
+ SILC_PACKET_CONNECTION_AUTH,
+ NULL, 0, NULL, NULL,
+ packet->data, packet->len, TRUE);
+ silc_buffer_free(packet);
+
+ /* Next state is end of protocol */
+ protocol->state = SILC_PROTOCOL_STATE_END;
+}
+
SILC_TASK_CALLBACK(silc_client_protocol_connection_auth)
{
SilcProtocol protocol = (SilcProtocol)context;
* Start protocol. We send authentication data to the server
* to be authenticated.
*/
- SilcBuffer packet;
- int payload_len = 0;
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,
- "Password authentication required by server %s",
- ctx->sock->hostname);
- auth_data = client->ops->ask_passphrase(client, conn);
- auth_data_len = strlen(auth_data);
+ client->internal->ops->say(
+ client, conn, SILC_CLIENT_MESSAGE_INFO,
+ "Password authentication required by server %s",
+ ctx->sock->hostname);
+ client->internal->ops->ask_passphrase(client, conn,
+ silc_client_conn_auth_continue,
+ protocol);
+ return;
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;
}
- payload_len = 4 + auth_data_len;
- packet = silc_buffer_alloc(payload_len);
- silc_buffer_pull_tail(packet, SILC_BUFFER_END(packet));
- silc_buffer_format(packet,
- SILC_STR_UI_SHORT(payload_len),
- SILC_STR_UI_SHORT(SILC_SOCKET_TYPE_CLIENT),
- SILC_STR_UI_XNSTRING(auth_data, auth_data_len),
- SILC_STR_END);
-
- /* Send the packet to server */
- silc_client_packet_send(client, ctx->sock,
- 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 */
- protocol->state = SILC_PROTOCOL_STATE_END;
+ silc_client_conn_auth_continue(auth_data,
+ auth_data_len, protocol);
}
break;
/* Protocol has ended, call the final callback */
if (protocol->final_callback)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
}
/* On error the final callback is always called. */
if (protocol->final_callback)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
}
/* On error the final callback is always called. */
if (protocol->final_callback)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ 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);
silc_free(conn->rekey->send_enc_key);
- conn->rekey->send_enc_key =
- silc_calloc(keymat->enc_key_len / 8,
- sizeof(*conn->rekey->send_enc_key));
- memcpy(conn->rekey->send_enc_key, keymat->send_enc_key,
- keymat->enc_key_len / 8);
+ conn->rekey->send_enc_key = silc_memdup(keymat->send_enc_key,
+ keymat->enc_key_len / 8);
conn->rekey->enc_key_len = keymat->enc_key_len / 8;
}
}
if (ctx->packet->type != SILC_PACKET_KEY_EXCHANGE_1) {
/* Error in protocol */
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0, protocol, fd,
- 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
}
- ctx->ske = silc_ske_alloc();
- ctx->ske->rng = client->rng;
+ ctx->ske = silc_ske_alloc(client->rng, client);
ctx->ske->prop = silc_calloc(1, sizeof(*ctx->ske->prop));
- silc_ske_get_group_by_number(conn->rekey->ske_group,
+ silc_ske_group_get_by_number(conn->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_client_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));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0,
- protocol, fd, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
return;
}
/* Advance the protocol state */
protocol->state++;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 0);
+ silc_protocol_execute(protocol, client->schedule, 0, 0);
} else {
/*
* Do normal and simple re-key.
* Use Perfect Forward Secrecy, ie. negotiate the key material
* using the SKE protocol.
*/
- ctx->ske = silc_ske_alloc();
- ctx->ske->rng = client->rng;
+ ctx->ske = silc_ske_alloc(client->rng, client);
ctx->ske->prop = silc_calloc(1, sizeof(*ctx->ske->prop));
- silc_ske_get_group_by_number(conn->rekey->ske_group,
+ silc_ske_group_get_by_number(conn->rekey->ske_group,
&ctx->ske->prop->group);
- status =
- silc_ske_initiator_phase_2(ctx->ske, NULL, NULL,
- silc_client_protocol_rekey_send_packet,
- context);
-
+ silc_ske_set_callbacks(ctx->ske,
+ silc_client_protocol_rekey_send_packet,
+ NULL, NULL, NULL, silc_ske_check_version,
+ context);
+
+ status = silc_ske_initiator_phase_2(ctx->ske, NULL, NULL, 0);
if (status != SILC_SKE_STATUS_OK) {
SILC_LOG_WARNING(("Error (type %d) during Re-key (PFS)",
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0,
- protocol, fd, 0, 300000);
+ silc_protocol_execute(protocol, client->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_client_protocol_rekey_send_packet,
- context);
+ status = silc_ske_responder_finish(ctx->ske, NULL, NULL,
+ SILC_SKE_PK_TYPE_SILC);
if (status != SILC_SKE_STATUS_OK) {
SILC_LOG_WARNING(("Error (type %d) during Re-key (PFS)",
status));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0,
- protocol, fd, 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;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 0, 300000);
+ silc_protocol_execute(protocol, client->schedule, 0, 300000);
}
- 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));
protocol->state = SILC_PROTOCOL_STATE_ERROR;
- protocol->execute(client->timeout_queue, 0,
- protocol, fd, 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;
- protocol->execute(client->timeout_queue, 0, protocol, fd, 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)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
if (ctx->pfs == TRUE) {
/* Send abort notification */
- silc_ske_abort(ctx->ske, ctx->ske->status,
- silc_client_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)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ 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)
- protocol->execute_final(client->timeout_queue, 0, protocol, fd);
+ silc_protocol_execute_final(protocol, client->schedule);
else
silc_protocol_free(protocol);
break;
projects / silc.git / blobdiff