/*
* Some browsers use a hybrid SSLv2 "client hello"
*/
int process_sslv23_client_hello(SSL *ssl) {
uint8_t *buf = ssl->bm_data;
int bytes_needed = ((buf[0] & 0x7f) << 8) + buf[1];
int ret = SSL_OK;
/* we have already read 3 extra bytes so far */
// int read_len = SOCKET_READ(ssl->client_fd, buf, bytes_needed-3);
int read_len = pbuf_copy_partial(ssl->ssl_pbuf, buf, bytes_needed - 3, 0);
int cs_len = buf[1];
int id_len = buf[3];
int ch_len = buf[5];
int i, j, offset = 8; /* start at first cipher */
int random_offset = 0;
DISPLAY_BYTES(ssl, "received %d bytes", buf, read_len, read_len);
add_packet(ssl, buf, read_len);
/* connection has gone, so die */
if (bytes_needed < 0) {
return SSL_ERROR_CONN_LOST;
}
/* now work out what cipher suite we are going to use */
for (j = 0; j < NUM_PROTOCOLS; j++) {
for (i = 0; i < cs_len; i += 3) {
if (ssl_prot_prefs[j] == buf[offset + i]) {
ssl->cipher = ssl_prot_prefs[j];
goto server_hello;
}
}
}
/* ouch! protocol is not supported */
ret = SSL_ERROR_NO_CIPHER;
goto error;
server_hello:
/* get the session id */
offset += cs_len - 2; /* we've gone 2 bytes past the end */
#ifndef CONFIG_SSL_SKELETON_MODE
ssl->session = ssl_session_update(ssl->ssl_ctx->num_sessions,
ssl->ssl_ctx->ssl_sessions, ssl, id_len ? &buf[offset] : NULL);
#endif
/* get the client random data */
offset += id_len;
/* random can be anywhere between 16 and 32 bytes long - so it is padded
* with 0's to the left */
if (ch_len == 0x10) {
random_offset += 0x10;
}
memcpy(&ssl->dc->client_random[random_offset], &buf[offset], ch_len);
ret = send_server_hello_sequence(ssl);
error:
return ret;
}
/*
* Write the memory statistic information.
*
* IN:
* @mem_stats: The memory statistics information.
* @flag: The display flag.
*/
void write_mem_stats(cg_mem_stats* mem_stats, int flag) {
unsigned long long unit = 1024;
unsigned long long temp = 0;
printf(
" total used free shared buffers cached\n");
if (DISPLAY_BYTES(flag))
unit = 1;
else if (DISPLAY_MEGABYTES(flag))
unit = 1024 * 1024;
else if (DISPLAY_GIGABYTES(flag))
unit = 1024 * 1024 * 1024;
printf("Mem: %12.0f %12.0f %12.0f %12.0f %12.0f %12.0f\n",
((double) mem_stats->limit) / unit,
((double) mem_stats->usage) / unit,
((double) (mem_stats->limit - mem_stats->usage)) / unit, (double) 0,
(double) 0, ((double) mem_stats->stats->cache) / unit);
if (!DISPLAY_OLD(flag))
printf("-/+ buffers/cache: %12.0f %12.0f\n",
((double) (mem_stats->usage - mem_stats->stats->cache
- mem_stats->stats->inactive_anon
- mem_stats->stats->inactive_file)) / unit,
((double) (mem_stats->limit - mem_stats->usage
+ mem_stats->stats->cache)) / unit);
temp = mem_stats->mem_swap_limit - mem_stats->limit;
printf("Swap: %12.0f %12.0f %12.0f\n", ((double) (temp)) / unit,
((double) (mem_stats->mem_swap_usage - mem_stats->usage)) / unit,
temp ? ((double) (temp - mem_stats->mem_swap_usage
+ mem_stats->usage) / unit) :
0);
if (DISPLAY_TOTAL(flag))
printf("Total: %12.0f %12.0f %12.0f\n",
((double) mem_stats->mem_swap_limit) / unit,
((double) mem_stats->mem_swap_usage) / unit,
((double) (mem_stats->mem_swap_limit - mem_stats->mem_swap_usage))
/ unit);
}
