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Added a dcb_connect_SSL function which starts a client SSL connection.

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This commit is contained in:
Markus Makela 2015-06-02 09:15:08 +03:00
parent 08e0a31826
commit fc8918b1f2
2 changed files with 67 additions and 0 deletions
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66
server/core/dcb.c
View File

@ -2843,5 +2843,71 @@ int dcb_accept_SSL(DCB* dcb)
break;
}
return rval;
}
/**
* Initiate an SSL client connection to a server
*
* This functions starts an SSL client connection to a server which is expecting
* an SSL handshake. The DCB should already have a TCP connection to the server and
* this connection should be in a state that expects an SSL handshake.
* @param dcb DCB to connect
* @return 1 on success, -1 on error and 0 if the SSL handshake is still ongoing
*/
int dcb_connect_SSL(DCB* dcb)
{
int rval,errnum;
rval = SSL_connect(dcb->ssl);
switch(rval)
{
case 0:
errnum = SSL_get_error(dcb->ssl,rval);
LOGIF(LD,(skygw_log_write_flush(LD,"SSL_connect shutdown for %s@%s",
dcb->user,
dcb->remote)));
return -1;
break;
case 1:
rval = 1;
LOGIF(LD,(skygw_log_write_flush(LD,"SSL_connect done for %s@%s",
dcb->user,
dcb->remote)));
break;
case -1:
errnum = SSL_get_error(dcb->ssl,rval);
if(errnum == SSL_ERROR_WANT_READ || errnum == SSL_ERROR_WANT_WRITE ||
errnum == SSL_ERROR_WANT_X509_LOOKUP)
{
/** Not all of the data has been read. Go back to the poll
queue and wait for more.*/
rval = 0;
LOGIF(LD,(skygw_log_write_flush(LD,"SSL_connect ongoing for %s@%s",
dcb->user,
dcb->remote)));
}
else
{
rval = -1;
skygw_log_write_flush(LE,
"Error: Fatal error in SSL_connect for %s@%s: %s",
dcb->user,
dcb->remote,
ERR_error_string(errnum,NULL));
}
break;
default:
skygw_log_write_flush(LE,
"Error: Fatal error in SSL_connect, returned value was %d.",
rval);
break;
}
return rval;
}

1
server/include/dcb.h
View File

@ -343,6 +343,7 @@ size_t dcb_get_session_id(DCB* dcb);
bool dcb_get_ses_log_info(DCB* dcb, size_t* sesid, int* enabled_logs);
int dcb_create_SSL(DCB* dcb);
int dcb_accept_SSL(DCB* dcb);
int dcb_connect_SSL(DCB* dcb);
int gw_write_SSL(SSL* ssl, const void *buf, size_t nbytes);
int dcb_write_SSL(DCB *dcb,GWBUF *queue);
int dcb_read_SSL(DCB *dcb,GWBUF **head);