Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
- Copyright (C) 1997 - 2000 Pekka Riikonen
+ Copyright (C) 1997 - 2001 Pekka Riikonen
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
int silc_packet_send(SilcSocketConnection sock, int force_send)
{
+ SILC_LOG_DEBUG(("Sending packet to %s:%d [%s]", sock->hostname,
+ sock->port,
+ (sock->type == SILC_SOCKET_TYPE_UNKNOWN ? "Unknown" :
+ sock->type == SILC_SOCKET_TYPE_CLIENT ? "Client" :
+ sock->type == SILC_SOCKET_TYPE_SERVER ? "Server" :
+ "Router")));
+
/* Send now if forced to do so */
if (force_send == TRUE) {
int ret;
SilcBuffer buffer, unsigned int len)
{
unsigned char mac[32];
+ unsigned int mac_len;
/* Compute HMAC. This assumes that HMAC is created from the entire
data area thus this uses the length found in buffer, not the length
sent as argument. */
if (hmac) {
- silc_hmac_make(hmac, buffer->data, buffer->len, mac);
- silc_buffer_put_tail(buffer, mac, hmac->hash->hash->hash_len);
+ silc_hmac_make(hmac, buffer->data, buffer->len, mac, &mac_len);
+ silc_buffer_put_tail(buffer, mac, mac_len);
memset(mac, 0, sizeof(mac));
}
/* Pull the HMAC into the visible data area in the buffer */
if (hmac)
- silc_buffer_pull_tail(buffer, hmac->hash->hash->hash_len);
+ silc_buffer_pull_tail(buffer, mac_len);
}
/* Assembles a new packet to be ready for send out. The buffer sent as
/* Get random padding */
#if 1
- for (i = 0; i < ctx->padlen; i++) tmppad[i] = silc_rng_get_byte(ctx->rng);
+ for (i = 0; i < ctx->padlen; i++) tmppad[i] = silc_rng_global_get_byte();
#else
/* XXX: For testing - to be removed */
memset(tmppad, 65, sizeof(tmppad));
return;
if (hmac)
- mac_len = hmac->hash->hash->hash_len;
+ mac_len = hmac->hmac->len;
/* Parse the packets from the data */
count = 0;
{
int ret;
+ SILC_LOG_DEBUG(("Receiving packet from %s:%d [%s]", sock->hostname,
+ sock->port,
+ (sock->type == SILC_SOCKET_TYPE_UNKNOWN ? "Unknown" :
+ sock->type == SILC_SOCKET_TYPE_CLIENT ? "Client" :
+ sock->type == SILC_SOCKET_TYPE_SERVER ? "Server" :
+ "Router")));
+
/* Allocate the incoming data buffer if not done already. */
if (!sock->inbuf)
sock->inbuf = silc_buffer_alloc(SILC_PACKET_DEFAULT_SIZE);
-
+
/* Read some data from connection */
ret = silc_packet_read(sock->sock, sock->inbuf);
- /* Error */
- if (ret == -1) {
- SILC_LOG_ERROR(("Error reading packet, dropped"));
- }
-
return ret;
}
/* Check MAC */
if (hmac) {
unsigned char mac[32];
+ unsigned int mac_len;
SILC_LOG_DEBUG(("Verifying MAC"));
/* Compute HMAC of packet */
memset(mac, 0, sizeof(mac));
- silc_hmac_make(hmac, buffer->data, buffer->len, mac);
+ silc_hmac_make(hmac, buffer->data, buffer->len, mac, &mac_len);
/* Compare the HMAC's (buffer->tail has the packet's HMAC) */
- if (memcmp(mac, buffer->tail, hmac->hash->hash->hash_len)) {
+ if (memcmp(mac, buffer->tail, mac_len)) {
SILC_LOG_DEBUG(("MAC failed"));
return FALSE;
}
/* Pull MAC from packet before decryption */
if (hmac) {
- if ((buffer->len - hmac->hash->hash->hash_len) > SILC_PACKET_MIN_LEN) {
- silc_buffer_push_tail(buffer, hmac->hash->hash->hash_len);
+ if ((buffer->len - hmac->hmac->len) > SILC_PACKET_MIN_LEN) {
+ silc_buffer_push_tail(buffer, hmac->hmac->len);
} else {
SILC_LOG_DEBUG(("Bad MAC length in packet, packet dropped"));
return FALSE;
/* Pull MAC from packet before decryption */
if (hmac) {
- if ((buffer->len - hmac->hash->hash->hash_len) > SILC_PACKET_MIN_LEN) {
- silc_buffer_push_tail(buffer, hmac->hash->hash->hash_len);
+ if ((buffer->len - hmac->hmac->len) > SILC_PACKET_MIN_LEN) {
+ silc_buffer_push_tail(buffer, hmac->hmac->len);
} else {
SILC_LOG_DEBUG(("Bad MAC length in packet, packet dropped"));
return FALSE;