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New function to get BIO method. 

FossilOrigin-Name: c1bd435aaa298fa22bb42cc955e1e46d409eeb4a30e96b4ccb01fd112b16fca6
This commit is contained in:
7u83@mail.ru 2015-02-02 23:27:36 +00:00
parent 81c64922ca
commit 5008b12d8e
1 changed files with 67 additions and 48 deletions
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115
src/capwap/dtls_openssl_bio.c
View File

@ -5,93 +5,114 @@
#include "conn.h"
#include "cw_log.h"
int dtls_openssl_bio_write(BIO *b, const char *data, int len)
BIO_METHOD *dtls_openssl_bio_method()
{
static BIO_METHOD bio_methods;
bio_methods.type = BIO_TYPE_DGRAM;
bio_methods.name = "CW packet";
bio_methods.bwrite = dtls_openssl_bio_write;
bio_methods.bread = dtls_openssl_bio_read;
bio_methods.bputs = dtls_openssl_bio_puts;
bio_methods.bgets = 0;
bio_methods.ctrl = dtls_openssl_bio_ctrl;
bio_methods.create = dtls_openssl_bio_new;
bio_methods.destroy = dtls_openssl_bio_free;
bio_methods.callback_ctrl = 0;
return &bio_methods;
}
int dtls_openssl_bio_write(BIO * b, const char *data, int len)
{
struct conn * conn = b->ptr;
struct conn *conn = b->ptr;
uint8_t buffer[2048];
*((uint32_t*)buffer)=htonl(1<<24);
memcpy(buffer+4,data,len);
int rc = conn->send_packet(conn,buffer,len+4);
*((uint32_t *) buffer) = htonl(1 << 24);
memcpy(buffer + 4, data, len);
int rc = conn->send_packet(conn, buffer, len + 4);
cw_dbg(DBG_DTLS_BIO,"SSL BIO write: %d bytes, rc=%d, ptr: %p",len, rc, data);
if (rc<0)
cw_dbg(DBG_DTLS_BIO, "SSL BIO write: %d bytes, rc=%d, ptr: %p", len, rc, data);
if (rc < 0)
return rc;
return rc-4;
return rc - 4;
}
int dtls_openssl_bio_read(BIO *b, char *out, int maxlen)
int dtls_openssl_bio_read(BIO * b, char *out, int maxlen)
{
struct conn * conn = b->ptr;
struct dtls_openssl_data * dtls_data = conn->dtls_data;
if (dtls_data->len==0){
int len = conn->recv_packet(conn,dtls_data->buffer,2048);
cw_dbg(DBG_DTLS_BIO, "SSL BIO read: (maxlen = %d)", maxlen);
struct conn *conn = b->ptr;
struct dtls_openssl_data *dtls_data = conn->dtls_data;
if (dtls_data->len == 0) {
int len = conn->recv_packet(conn, dtls_data->buffer, 2048);
/* if (len == -1){
printf ("-1 ERRRRRRRRRRRRRRRRR %s\n",strerror(errno));
}
*/
if (len<4)
if (len < 4)
return 0;
dtls_data->len=len-4;
dtls_data->pos=4;
dtls_data->len = len - 4;
dtls_data->pos = 4;
}
if (dtls_data->len > maxlen)
{
memcpy(out,dtls_data->buffer+dtls_data->pos,maxlen);
dtls_data->len-=maxlen;
dtls_data->pos+=maxlen;
if (dtls_data->len > maxlen) {
memcpy(out, dtls_data->buffer + dtls_data->pos, maxlen);
dtls_data->len -= maxlen;
dtls_data->pos += maxlen;
return maxlen;
}
memcpy(out,dtls_data->buffer+dtls_data->pos,dtls_data->len);
memcpy(out, dtls_data->buffer + dtls_data->pos, dtls_data->len);
int ret = dtls_data->len;
dtls_data->len=0;
dtls_data->len = 0;
return ret;
}
int dtls_openssl_bio_new(BIO *bi)
int dtls_openssl_bio_new(BIO * bi)
{
bi->init = 1;
bi->num = 0;
bi->flags = 0;
bi->ptr = NULL;
bi->ptr = NULL;
cw_dbg(DBG_DTLS_BIO, "SSL BIO new");
return 1;
}
int dtls_openssl_bio_puts(BIO *b, const char *str)
int dtls_openssl_bio_puts(BIO * b, const char *str)
{
// printf("Bio puts: %s\n",str);
cw_dbg(DBG_DTLS_BIO, "SSL BIO puts: '%s'", str);
return dtls_openssl_bio_write(b, str, strlen(str));
}
int dtls_openssl_bio_free(BIO *bio)
int dtls_openssl_bio_free(BIO * bio)
{
if (bio == NULL)
if (bio == NULL)
return 0;
return 1;
}
long dtls_openssl_bio_ctrl(BIO *b, int cmd, long num, void *ptr)
long dtls_openssl_bio_ctrl(BIO * b, int cmd, long num, void *ptr)
{
long ret = 1;
// long sockopt_val = 0;
// unsigned int sockopt_len = 0;
// BIO_memory_data* pData = (BIO_memory_data*)b->ptr;
// long sockopt_val = 0;
// unsigned int sockopt_len = 0;
// BIO_memory_data* pData = (BIO_memory_data*)b->ptr;
//
// printf("BIO CONTROL cmd=%d,num=%d\n",cmd,num);
// exit(1);
// printf("BIO CONTROL cmd=%d,num=%d\n",cmd,num);
// exit(1);
switch (cmd)
{
switch (cmd) {
case BIO_CTRL_RESET:
case BIO_CTRL_EOF:
ret = 0;
@ -111,7 +132,7 @@ long dtls_openssl_bio_ctrl(BIO *b, int cmd, long num, void *ptr)
case BIO_CTRL_WPENDING:
ret = 0;
break;
case BIO_CTRL_PENDING:
ret = 0;
break;
@ -132,9 +153,9 @@ long dtls_openssl_bio_ctrl(BIO *b, int cmd, long num, void *ptr)
ret = 0;
case BIO_CTRL_DGRAM_QUERY_MTU:
{
ret = 1400;
break;
{
ret = 1400;
break;
/* sockopt_len = sizeof(sockopt_val);
if ((ret = getsockopt(pData->sock, IPPROTO_IP, IP_MTU, (void *)&sockopt_val, &sockopt_len)) < 0 || sockopt_val < 0)
@ -149,16 +170,16 @@ long dtls_openssl_bio_ctrl(BIO *b, int cmd, long num, void *ptr)
break;
*/ }
*/ }
case BIO_CTRL_DGRAM_GET_MTU:
ret = 1500;
// ret = pData->nMtu;
// ret = pData->nMtu;
break;
case BIO_CTRL_DGRAM_SET_MTU:
// pData->nMtu = num;
// ret = num;
// pData->nMtu = num;
// ret = num;
break;
default:
@ -168,5 +189,3 @@ long dtls_openssl_bio_ctrl(BIO *b, int cmd, long num, void *ptr)
return ret;
}