// =========================================================================
// 函数功能：处理客户端对挑战信息的响应
// 输入参数：待交流的客户端cl
// 输出参数：
// 返回值 ：
// 说明 ：当响应消息失败时，3.7以上的版本会发送失败的原因，而3.7及其以下会直接
// 关闭客户端
// =========================================================================
void rfbAuthProcessClientMessage(rfbClientPtr cl)
{
char *passwd="123";
int n;
u8 response[CHALLENGESIZE];
u32 authResult;
if ((n = ReadExact(cl, (char *)response, CHALLENGESIZE)) <= 0) {
if (n != 0)
debug_printf("rfbAuthProcessClientMessage: read");
rfbCloseClient(cl);
return;
}
rfbEncryptBytes(cl->authChallenge, passwd);
if (memcmp(cl->authChallenge, response, CHALLENGESIZE) != 0) {
debug_printf("rfbAuthProcessClientMessage: authentication failed from %s\n",
cl->host);
authResult = Swap32IfLE(rfbVncAuthFailed);
if (WriteExact(cl, (char *)&authResult, 4) < 0) {
debug_printf("rfbAuthProcessClientMessage: write");
rfbClientSendString(cl,"challengdge failed\n");
}
rfbCloseClient(cl);
return;
}
else
{
debug_printf("challendge success ---cl=%s",cl->host);
}
authResult = Swap32IfLE(rfbVncAuthOK);
if (WriteExact(cl, (char *)&authResult, 4) < 0) {
debug_printf("rfbAuthProcessClientMessage: write");
rfbCloseClient(cl);
return;
}
cl->state = RFB_INITIALISATION;
}
static void
rfbSendSecurityTypeList(rfbClientPtr cl, int primaryType)
{
/* The size of the message is the count of security types +1,
* since the first byte is the number of types. */
int size = 1;
rfbSecurityHandler* handler;
#define MAX_SECURITY_TYPES 255
uint8_t buffer[MAX_SECURITY_TYPES+1];
/* Fill in the list of security types in the client structure. (NOTE: Not really in the client structure) */
switch (primaryType) {
case rfbSecTypeNone:
rfbRegisterSecurityHandler(&VncSecurityHandlerNone);
break;
case rfbSecTypeVncAuth:
rfbRegisterSecurityHandler(&VncSecurityHandlerVncAuth);
break;
}
for (handler = securityHandlers;
handler && size<MAX_SECURITY_TYPES; handler = handler->next) {
buffer[size] = handler->type;
size++;
}
buffer[0] = (unsigned char)size-1;
/* Send the list. */
if (rfbWriteExact(cl, (char *)buffer, size) < 0) {
rfbLogPerror("rfbSendSecurityTypeList: write");
rfbCloseClient(cl);
return;
}
/*
* if count is 0, we need to send the reason and close the connection.
*/
if(size <= 1) {
/* This means total count is Zero and so reason msg should be sent */
/* The execution should never reach here */
char* reason = "No authentication mode is registered!";
rfbClientSendString(cl, reason);
return;
}
/* Dispatch client input to rfbProcessClientSecurityType. */
cl->state = RFB_SECURITY_TYPE;
}
