*/
/* $Id$ */
-#include "clientlibincludes.h"
+#include "silcincludes.h"
+#include "silcclient.h"
#include "client_internal.h"
SILC_TASK_CALLBACK(silc_client_protocol_connection_auth);
void silc_client_protocol_ke_verify_key(SilcSKE ske,
unsigned char *pk_data,
- uint32 pk_len,
+ SilcUInt32 pk_len,
SilcSKEPKType pk_type,
void *context,
SilcSKEVerifyCbCompletion completion,
verify->completion_context = completion_context;
/* Verify public key from user. */
- client->ops->verify_public_key(client, ctx->sock->user_data,
- ctx->sock->type,
- pk_data, pk_len, pk_type,
- silc_client_verify_key_cb, verify);
+ 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. */
/* 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)
/* Checks the version string of the server. */
SilcSKEStatus silc_ske_check_version(SilcSKE ske, unsigned char *version,
- uint32 len, void *context)
+ SilcUInt32 len, void *context)
{
SilcClientConnection conn = (SilcClientConnection)ske->sock->user_data;
SilcClient client = (SilcClient)ske->user_data;
- SilcSKEStatus status = SILC_SKE_STATUS_OK;
- char *cp;
- int maj = 0, min = 0, build = 0, maj2 = 0, min2 = 0, build2 = 0;
-
- /* Check for initial version string */
- if (!strstr(version, "SILC-1.0-"))
- status = SILC_SKE_STATUS_BAD_VERSION;
-
- /* Check software version */
-
- cp = version + 9;
- if (!cp)
- status = SILC_SKE_STATUS_BAD_VERSION;
-
- maj = atoi(cp);
- cp = strchr(cp, '.');
- if (cp) {
- min = atoi(cp + 1);
- cp++;
+ SilcUInt32 l_protocol_version = 0, r_protocol_version = 0;
+
+ if (!silc_parse_version_string(version, &r_protocol_version, NULL, NULL,
+ NULL, NULL)) {
+ client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
+ "We don't support server version `%s'",
+ version);
+ return SILC_SKE_STATUS_BAD_VERSION;
}
- cp = strchr(cp, '.');
- if (cp)
- build = atoi(cp + 1);
-
- cp = client->silc_client_version + 9;
- if (!cp)
- status = SILC_SKE_STATUS_BAD_VERSION;
-
- maj2 = atoi(cp);
- cp = strchr(cp, '.');
- if (cp) {
- min2 = atoi(cp + 1);
- cp++;
+
+ if (!silc_parse_version_string(client->internal->silc_client_version,
+ &l_protocol_version, NULL, NULL,
+ NULL, NULL)) {
+ client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
+ "We don't support server version `%s'",
+ version);
+ return SILC_SKE_STATUS_BAD_VERSION;
}
- cp = strchr(cp, '.');
- if (cp)
- build2 = atoi(cp + 1);
- if (maj != maj2)
- status = SILC_SKE_STATUS_BAD_VERSION;
- if (min < min2)
- status = SILC_SKE_STATUS_BAD_VERSION;
+ /* If remote is too new, don't connect */
+ if (l_protocol_version < r_protocol_version) {
+ client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
+ "We don't support server version `%s'",
+ version);
+ return SILC_SKE_STATUS_BAD_VERSION;
+ }
- if (status != SILC_SKE_STATUS_OK)
- client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
- "We don't support server version `%s'", version);
+ ske->sock->version = r_protocol_version;
- return status;
+ return SILC_SKE_STATUS_OK;
}
/* Callback that is called by the SKE to indicate that it is safe to
SILC_LOG_DEBUG(("Start"));
if (ske->status != SILC_SKE_STATUS_OK) {
- if (ske->status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY) {
- 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, SILC_CLIENT_MESSAGE_AUDIT,
- "Remote host did not send its public key, even though "
- "it must send it");
- } else {
- client->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
- "Error during key exchange protocol with server %s",
- ctx->sock->hostname);
- }
-
+ /* 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;
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,
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,
- client->silc_client_version,
- ctx->packet->buffer, TRUE);
+ 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,
- client->silc_client_version,
- &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. */
*/
if (ctx->responder == TRUE) {
/* Sends the selected security properties to the initiator. */
- status =
- silc_ske_responder_phase_1(ctx->ske,
- ctx->ske->start_payload);
+ 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
Key Exhange 1 Payload to the responder. */
status = silc_ske_initiator_phase_2(ctx->ske,
client->public_key,
- client->private_key);
+ client->private_key,
+ SILC_SKE_PK_TYPE_SILC);
protocol->state++;
}
if (status != SILC_SKE_STATUS_OK) {
if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY) {
- client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
- "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, SILC_CLIENT_MESSAGE_AUDIT,
+ client->internal->ops->say(
+ client, conn, SILC_CLIENT_MESSAGE_AUDIT,
"Error during key exchange protocol with server %s",
ctx->sock->hostname);
}
silc_client_get_public_key_auth(SilcClient client,
SilcClientConnection conn,
unsigned char *auth_data,
- uint32 *auth_data_len,
+ SilcUInt32 *auth_data_len,
SilcSKE ske)
{
int len;
static void
silc_client_conn_auth_continue(unsigned char *auth_data,
- uint32 auth_data_len, void *context)
+ SilcUInt32 auth_data_len, void *context)
{
SilcProtocol protocol = (SilcProtocol)context;
SilcClientConnAuthInternalContext *ctx =
* to be authenticated.
*/
unsigned char *auth_data = NULL;
- uint32 auth_data_len = 0;
+ SilcUInt32 auth_data_len = 0;
unsigned char sign[1024];
switch(ctx->auth_meth) {
break;
}
- client->ops->say(client, conn, SILC_CLIENT_MESSAGE_INFO,
- "Password authentication required by server %s",
- ctx->sock->hostname);
- client->ops->ask_passphrase(client, conn,
- silc_client_conn_auth_continue,
- protocol);
+ 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;
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;
}
}
{
SilcClientConnection conn = (SilcClientConnection)ctx->sock->user_data;
SilcSKEKeyMaterial *keymat;
- uint32 key_len = silc_cipher_get_key_len(conn->send_key);
- uint32 hash_len = conn->hash->hash->hash_len;
+ SilcUInt32 key_len = silc_cipher_get_key_len(conn->send_key);
+ SilcUInt32 hash_len = conn->hash->hash->hash_len;
SILC_LOG_DEBUG(("Generating new %s session keys (no PFS)",
send ? "sending" : "receiving"));
{
SilcClientConnection conn = (SilcClientConnection)ctx->sock->user_data;
SilcSKEKeyMaterial *keymat;
- uint32 key_len = silc_cipher_get_key_len(conn->send_key);
- uint32 hash_len = conn->hash->hash->hash_len;
+ SilcUInt32 key_len = silc_cipher_get_key_len(conn->send_key);
+ SilcUInt32 hash_len = conn->hash->hash->hash_len;
unsigned char *tmpbuf;
- uint32 klen;
+ SilcUInt32 klen;
SILC_LOG_DEBUG(("Generating new %s session keys (with PFS)",
send ? "sending" : "receiving"));
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);
silc_ske_set_callbacks(ctx->ske,
* 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);
silc_ske_set_callbacks(ctx->ske,
NULL, NULL, NULL, silc_ske_check_version,
context);
- status = silc_ske_initiator_phase_2(ctx->ske, NULL, NULL);
+ 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));
projects / silc.git / blobdiff