actube/src/capwap/dtls_openssl_bio.c

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#include <errno.h>
#include <arpa/inet.h>
#include "dtls_openssl.h"
#include "dtls.h"
#include "conn.h"
#include "log.h"
#include "dbg.h"
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;
return dtls_bio_write(conn,data,len);
}
int dtls_openssl_bio_read(BIO * b, char *out, int maxlen)
{
struct conn *conn = b->ptr;
return dtls_bio_read(conn,out,maxlen);
}
int dtls_openssl_bio_new(BIO * bi)
{
bi->init = 1;
bi->num = 0;
bi->flags = 0;
bi->ptr = NULL;
cw_dbg(DBG_DTLS_BIO, "SSL BIO new");
return 1;
}
int dtls_openssl_bio_puts(BIO * b, const char *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)
{
if (bio == NULL)
return 0;
return 1;
}
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;
//
// printf("BIO CONTROL cmd=%d,num=%d\n",cmd,num);
// exit(1);
switch (cmd) {
case BIO_CTRL_RESET:
case BIO_CTRL_EOF:
ret = 0;
break;
case BIO_CTRL_INFO:
ret = 0;
break;
case BIO_CTRL_GET_CLOSE:
ret = 0;
break;
case BIO_CTRL_SET_CLOSE:
break;
case BIO_CTRL_WPENDING:
ret = 0;
break;
case BIO_CTRL_PENDING:
ret = 0;
break;
case BIO_CTRL_DUP:
ret = 1;
break;
case BIO_CTRL_FLUSH:
ret = 1;
break;
case BIO_CTRL_PUSH:
ret = 0;
break;
case BIO_CTRL_POP:
ret = 0;
case BIO_CTRL_DGRAM_QUERY_MTU:
{
ret = 1300;
break;
/* sockopt_len = sizeof(sockopt_val);
if ((ret = getsockopt(pData->sock, IPPROTO_IP, IP_MTU, (void *)&sockopt_val, &sockopt_len)) < 0 || sockopt_val < 0)
{
ret = 0;
}
else
{
pData->nMtu = sockopt_val;
ret = sockopt_val;
}
break;
*/ }
case BIO_CTRL_DGRAM_GET_MTU:
ret = 1500;
// ret = pData->nMtu;
break;
case BIO_CTRL_DGRAM_SET_MTU:
// pData->nMtu = num;
// ret = num;
break;
default:
ret = 0;
break;
}
return ret;
}