ret = silc_socket_write(sock);
if (ret == -1) {
- SILC_LOG_ERROR(("Error sending packet, dropped"));
+ SILC_LOG_ERROR(("Error sending packet, dropped: %s",
+ strerror(errno)));
}
if (ret != -2)
return ret;
other process of HMAC computing and encryption is needed this function
cannot be used. */
-void silc_packet_encrypt(SilcCipher cipher, SilcHmac hmac, uint32 sequence,
- SilcBuffer buffer, uint32 len)
+void silc_packet_encrypt(SilcCipher cipher, SilcHmac hmac, SilcUInt32 sequence,
+ SilcBuffer buffer, SilcUInt32 len)
{
unsigned char mac[32];
- uint32 mac_len;
+ SilcUInt32 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
outgoing buffer in SilcSocketConnection object. */
void silc_packet_send_prepare(SilcSocketConnection sock,
- uint32 header_len,
- uint32 padlen,
- uint32 data_len)
+ SilcUInt32 header_len,
+ SilcUInt32 padlen,
+ SilcUInt32 data_len)
{
int totlen, oldlen;
******************************************************************************/
static int silc_packet_decrypt(SilcCipher cipher, SilcHmac hmac,
- uint32 sequence, SilcBuffer buffer,
+ SilcUInt32 sequence, SilcBuffer buffer,
bool normal);
/* Receives packet from network and reads the data into connection's
SilcPacketParserContext will indicate also whether the received
packet was normal or special packet. */
-void silc_packet_receive_process(SilcSocketConnection sock,
+bool silc_packet_receive_process(SilcSocketConnection sock,
bool local_is_router,
SilcCipher cipher, SilcHmac hmac,
- uint32 sequence,
+ SilcUInt32 sequence,
SilcPacketParserCallback parser,
void *parser_context)
{
/* Do not process for disconnected connection */
if (SILC_IS_DISCONNECTED(sock))
- return;
-
+ return TRUE;
+
if (sock->inbuf->len < SILC_PACKET_MIN_HEADER_LEN)
- return;
+ return TRUE;
if (hmac)
mac_len = silc_hmac_len(hmac);
if (sock->inbuf->len < SILC_PACKET_MIN_HEADER_LEN) {
SILC_LOG_DEBUG(("Partial packet in queue, waiting for the rest"));
- return;
+ return TRUE;
}
/* Decrypt first 16 bytes of the packet */
if (packetlen < SILC_PACKET_MIN_LEN) {
SILC_LOG_DEBUG(("Received invalid packet, dropped"));
silc_buffer_clear(sock->inbuf);
- return;
+ return FALSE;
}
if (sock->inbuf->len < paddedlen + mac_len) {
SILC_LOG_DEBUG(("Received partial packet, waiting for the rest"
"(%d < %d)", sock->inbuf->len, paddedlen + mac_len));
SILC_SET_INBUF_PENDING(sock);
- return;
+ return TRUE;
}
SILC_UNSET_INBUF_PENDING(sock);
}
if (cont == FALSE && sock->inbuf->len > 0)
- return;
+ return TRUE;
SILC_LOG_DEBUG(("Clearing inbound buffer"));
silc_buffer_clear(sock->inbuf);
+ return TRUE;
}
/* Checks MAC in the packet. Returns TRUE if MAC is Ok. This is called
after packet has been totally decrypted and parsed. */
static int silc_packet_check_mac(SilcHmac hmac, SilcBuffer buffer,
- uint32 sequence)
+ SilcUInt32 sequence)
{
/* Check MAC */
if (hmac) {
unsigned char mac[32], psn[4];
- uint32 mac_len;
+ SilcUInt32 mac_len;
SILC_LOG_DEBUG(("Verifying MAC"));
silc_hmac_final(hmac, mac, &mac_len);
/* Compare the HMAC's (buffer->tail has the packet's HMAC) */
- if (memcmp(mac, buffer->tail, mac_len)) {
+ if (memcmp(buffer->tail, mac, mac_len)) {
SILC_LOG_ERROR(("MAC failed"));
return FALSE;
}
{
/* Decrypt rest of the header plus padding */
if (cipher) {
- uint16 len;
+ SilcUInt16 len;
/* Pull MAC from packet before decryption */
if (hmac) {
/* padding length + src id len + dst id len + header length - 16
bytes already decrypted, gives the rest of the encrypted packet */
- len = (((uint8)buffer->data[4] + (uint8)buffer->data[6] +
- (uint8)buffer->data[7] + SILC_PACKET_HEADER_LEN) -
+ len = (((SilcUInt8)buffer->data[4] + (SilcUInt8)buffer->data[6] +
+ (SilcUInt8)buffer->data[7] + SILC_PACKET_HEADER_LEN) -
SILC_PACKET_MIN_HEADER_LEN);
silc_buffer_pull(buffer, SILC_PACKET_MIN_HEADER_LEN);
is special and requires special procesing. */
static int silc_packet_decrypt(SilcCipher cipher, SilcHmac hmac,
- uint32 sequence, SilcBuffer buffer,
+ SilcUInt32 sequence, SilcBuffer buffer,
bool normal)
{
/* If the packet type is not any special type lets decrypt rest
SilcPacketType silc_packet_parse(SilcPacketContext *ctx, SilcCipher cipher)
{
SilcBuffer buffer = ctx->buffer;
- uint8 tmp;
+ SilcUInt8 tmp;
int len, ret;
SILC_LOG_DEBUG(("Parsing incoming packet"));
SilcCipher cipher)
{
SilcBuffer buffer = ctx->buffer;
- uint8 tmp;
+ SilcUInt8 tmp;
int len, ret;
SILC_LOG_DEBUG(("Parsing incoming packet"));