secur32: Cleanup InitializeSecurityContext (reduce indent and duplication).
This commit is contained in:
Mike McCormack
Alexandre Julliard
parent
d243b39c94
commit
4cd377d49c
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@ -395,312 +395,234 @@ static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
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PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
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PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
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{
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{
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SECURITY_STATUS ret;
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SECURITY_STATUS ret;
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PNegoHelper helper;
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ULONG ctxt_attr = 0;
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char* buffer;
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PBYTE bin;
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int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
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TRACE("%p %p %s %ld %ld %ld %p %ld %p %p %p %p\n", phCredential, phContext,
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TRACE("%p %p %s %ld %ld %ld %p %ld %p %p %p %p\n", phCredential, phContext,
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debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
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debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
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Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
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Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
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if(phCredential){
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if(!phCredential)
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/* As the server side of sspi never calls this, make sure that
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return SEC_E_INVALID_HANDLE;
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* the handler is a client handler.
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*/
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/* As the server side of sspi never calls this, make sure that
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PNegoHelper helper = (PNegoHelper)phCredential->dwLower;
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* the handler is a client handler.
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ULONG ctxt_attr = 0;
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*/
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if(helper->mode == NTLM_CLIENT)
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helper = (PNegoHelper)phCredential->dwLower;
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if(helper->mode != NTLM_CLIENT)
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{
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TRACE("Helper mode = %d\n", helper->mode);
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return SEC_E_INVALID_HANDLE;
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}
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/****************************************
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* When communicating with the client, there can be the
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* following reply packets:
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* YR <base64 blob> should be sent to the server
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* PW should be sent back to helper with
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* base64 encoded password
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* AF <base64 blob> client is done, blob should be
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* sent to server with KK prefixed
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* BH <char reason> something broke
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*/
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/* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
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if (pszTargetName)
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{
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TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
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}
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/* Handle all the flags */
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if(fContextReq & ISC_REQ_CONFIDENTIALITY)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_CONFIDENTIALITY stub\n");
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}
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if(fContextReq & ISC_REQ_CONNECTION)
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{
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/* This is default, so we'll enable it */
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ctxt_attr |= ISC_RET_CONNECTION;
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}
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if(fContextReq & ISC_REQ_EXTENDED_ERROR)
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FIXME("ISC_REQ_EXTENDED_ERROR\n");
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if(fContextReq & ISC_REQ_INTEGRITY)
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FIXME("ISC_REQ_INTEGRITY\n");
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if(fContextReq & ISC_REQ_MUTUAL_AUTH)
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FIXME("ISC_REQ_MUTUAL_AUTH\n");
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if(fContextReq & ISC_REQ_REPLAY_DETECT)
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FIXME("ISC_REQ_REPLAY_DETECT\n");
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if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
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FIXME("ISC_REQ_SEQUENCE_DETECT\n");
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if(fContextReq & ISC_REQ_STREAM)
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FIXME("ISC_REQ_STREAM\n");
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/* Done with the flags */
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if(TargetDataRep == SECURITY_NETWORK_DREP){
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FIXME("Don't know how to do SECURITY_NETWORK_DREP\n");
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return SEC_E_UNSUPPORTED_FUNCTION;
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}
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buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
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bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
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if((phContext == NULL) && (pInput == NULL))
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{
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TRACE("First time in ISC()\n");
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/* Request a challenge request from ntlm_auth */
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if(helper->password == NULL)
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{
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{
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/****************************************
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FIXME("Using empty password for now.\n");
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* When communicating with the client, there can be the
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lstrcpynA(buffer, "PW AA==", max_len-1);
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* following reply packets:
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* YR <base64 blob> should be sent to the server
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* PW should be sent back to helper with
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* base64 encoded password
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* AF <base64 blob> client is done, blob should be
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* sent to server with KK prefixed
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* BH <char reason> something broke
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*/
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BOOL first = FALSE;
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/* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
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char* buffer = HeapAlloc(GetProcessHeap(), 0,
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sizeof(char) * NTLM_MAX_BUF);
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PBYTE bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) *
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NTLM_MAX_BUF);
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int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
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if((phContext == NULL) && (pInput == NULL))
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first = TRUE;
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if (pszTargetName)
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{
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TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
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}
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/* Handle all the flags */
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if(fContextReq & ISC_REQ_CONFIDENTIALITY)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_CONFIDENTIALITY stub\n");
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}
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if(fContextReq & ISC_REQ_CONNECTION)
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{
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/* This is default, so we'll enable it */
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ctxt_attr |= ISC_RET_CONNECTION;
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}
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if(fContextReq & ISC_REQ_EXTENDED_ERROR)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_EXTENDED_ERROR stub\n");
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}
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if(fContextReq & ISC_REQ_INTEGRITY)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_INTEGRITY stub\n");
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}
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if(fContextReq & ISC_REQ_MUTUAL_AUTH)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_MUTUAL_AUTH stub\n");
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}
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if(fContextReq & ISC_REQ_REPLAY_DETECT)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_REPLAY_DETECT stub\n");
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}
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if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_SEQUENCE_DETECT stub\n");
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}
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if(fContextReq & ISC_REQ_STREAM)
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{
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FIXME("InitializeSecurityContext(): ISC_REQ_STREAM stub\n");
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}
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/* Done with the flags */
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if(TargetDataRep == SECURITY_NETWORK_DREP){
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FIXME("Don't know how to do SECURITY_NETWORK_DREP\n");
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_UNSUPPORTED_FUNCTION;
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}
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if(first)
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{
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TRACE("First time in ISC()\n");
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/* Request a challenge request from ntlm_auth */
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if(helper->password == NULL)
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{
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FIXME("Using empty password for now.\n");
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lstrcpynA(buffer, "PW AA==", max_len-1);
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}
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else
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{
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lstrcpynA(buffer, "PW ", max_len-1);
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if((ret = encodeBase64((unsigned char*)helper->password,
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helper->pwlen-2, buffer+3,
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max_len-3, &buffer_len)) != SEC_E_OK)
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{
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TRACE("Deleting password!\n");
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memset(helper->password, 0, helper->pwlen-2);
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HeapFree(GetProcessHeap(), 0, helper->password);
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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}
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TRACE("Sending to helper: %s\n", debugstr_a(buffer));
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if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
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SEC_E_OK)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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TRACE("Helper returned %s\n", debugstr_a(buffer));
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lstrcpynA(buffer, "YR", max_len-1);
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if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
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SEC_E_OK)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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TRACE("%s\n", buffer);
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if(strncmp(buffer, "YR ", 3) != 0)
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{
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/* Something borked */
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TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INTERNAL_ERROR;
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}
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if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
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max_len-1, &bin_len)) != SEC_E_OK)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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/* put the decoded client blob into the out buffer */
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if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
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{
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if (pOutput)
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{
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pOutput->cBuffers = 1;
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pOutput->pBuffers[0].pvBuffer = SECUR32_ALLOC(bin_len);
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pOutput->pBuffers[0].cbBuffer = bin_len;
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}
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}
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if (!pOutput || !pOutput->cBuffers || pOutput->pBuffers[0].cbBuffer < bin_len)
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{
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TRACE("out buffer is NULL or has not enough space\n");
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_BUFFER_TOO_SMALL;
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}
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if (!pOutput->pBuffers[0].pvBuffer)
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{
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TRACE("out buffer is NULL\n");
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INTERNAL_ERROR;
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}
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pOutput->pBuffers[0].cbBuffer = bin_len;
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pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
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memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
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ret = SEC_I_CONTINUE_NEEDED;
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}
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else
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{
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/* handle second call here */
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/* encode server data to base64 */
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if (!pInput || !pInput->cBuffers)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INCOMPLETE_MESSAGE;
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}
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if (!pInput->pBuffers[0].pvBuffer)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INTERNAL_ERROR;
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}
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if(pInput->pBuffers[0].cbBuffer > max_len)
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{
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TRACE("pInput->pBuffers[0].cbBuffer is: %ld\n",
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pInput->pBuffers[0].cbBuffer);
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INVALID_TOKEN;
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}
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else
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bin_len = pInput->pBuffers[0].cbBuffer;
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memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
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lstrcpynA(buffer, "TT ", max_len-1);
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if((ret = encodeBase64(bin, bin_len, buffer+3,
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max_len-3, &buffer_len)) != SEC_E_OK)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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TRACE("Server sent: %s\n", debugstr_a(buffer));
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/* send TT base64 blob to ntlm_auth */
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if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
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SEC_E_OK)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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TRACE("Helper replied: %s\n", debugstr_a(buffer));
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if( (strncmp(buffer, "KK ", 3) != 0) &&
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(strncmp(buffer, "AF ", 3) !=0))
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{
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TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INVALID_TOKEN;
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}
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/* decode the blob and send it to server */
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if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
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&bin_len)) != SEC_E_OK)
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{
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return ret;
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}
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/* put the decoded client blob into the out buffer */
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if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
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{
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if (pOutput)
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{
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pOutput->cBuffers = 1;
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pOutput->pBuffers[0].pvBuffer = SECUR32_ALLOC(bin_len);
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pOutput->pBuffers[0].cbBuffer = bin_len;
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}
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}
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if (!pOutput || !pOutput->cBuffers || pOutput->pBuffers[0].cbBuffer < bin_len)
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{
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TRACE("out buffer is NULL or has not enough space\n");
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_BUFFER_TOO_SMALL;
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}
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if (!pOutput->pBuffers[0].pvBuffer)
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{
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TRACE("out buffer is NULL\n");
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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return SEC_E_INTERNAL_ERROR;
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}
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pOutput->pBuffers[0].cbBuffer = bin_len;
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pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
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memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
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ret = SEC_E_OK;
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phNewContext->dwUpper = ctxt_attr;
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phNewContext->dwLower = ret;
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}
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HeapFree(GetProcessHeap(), 0, buffer);
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HeapFree(GetProcessHeap(), 0, bin);
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if(ret != SEC_I_CONTINUE_NEEDED)
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{
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TRACE("Deleting password!\n");
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if(helper->password)
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memset(helper->password, 0, helper->pwlen-2);
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|
||||||
HeapFree(GetProcessHeap(), 0, helper->password);
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
ret = SEC_E_INVALID_HANDLE;
|
lstrcpynA(buffer, "PW ", max_len-1);
|
||||||
TRACE("Helper mode = %d\n", helper->mode);
|
if((ret = encodeBase64((unsigned char*)helper->password,
|
||||||
|
helper->pwlen-2, buffer+3,
|
||||||
|
max_len-3, &buffer_len)) != SEC_E_OK)
|
||||||
|
{
|
||||||
|
TRACE("Deleting password!\n");
|
||||||
|
memset(helper->password, 0, helper->pwlen-2);
|
||||||
|
HeapFree(GetProcessHeap(), 0, helper->password);
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
TRACE("Sending to helper: %s\n", debugstr_a(buffer));
|
||||||
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
||||||
|
goto end;
|
||||||
|
|
||||||
|
TRACE("Helper returned %s\n", debugstr_a(buffer));
|
||||||
|
lstrcpynA(buffer, "YR", max_len-1);
|
||||||
|
|
||||||
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
||||||
|
goto end;
|
||||||
|
|
||||||
|
TRACE("%s\n", buffer);
|
||||||
|
|
||||||
|
if(strncmp(buffer, "YR ", 3) != 0)
|
||||||
|
{
|
||||||
|
/* Something borked */
|
||||||
|
TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
|
||||||
|
ret = SEC_E_INTERNAL_ERROR;
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
|
||||||
|
max_len-1, &bin_len)) != SEC_E_OK)
|
||||||
|
goto end;
|
||||||
|
|
||||||
|
/* put the decoded client blob into the out buffer */
|
||||||
|
|
||||||
|
ret = SEC_I_CONTINUE_NEEDED;
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
ret = SEC_E_INVALID_HANDLE;
|
/* handle second call here */
|
||||||
|
/* encode server data to base64 */
|
||||||
|
if (!pInput || !pInput->cBuffers)
|
||||||
|
{
|
||||||
|
ret = SEC_E_INCOMPLETE_MESSAGE;
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!pInput->pBuffers[0].pvBuffer)
|
||||||
|
{
|
||||||
|
ret = SEC_E_INTERNAL_ERROR;
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
|
||||||
|
if(pInput->pBuffers[0].cbBuffer > max_len)
|
||||||
|
{
|
||||||
|
TRACE("pInput->pBuffers[0].cbBuffer is: %ld\n",
|
||||||
|
pInput->pBuffers[0].cbBuffer);
|
||||||
|
ret = SEC_E_INVALID_TOKEN;
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
bin_len = pInput->pBuffers[0].cbBuffer;
|
||||||
|
|
||||||
|
memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
|
||||||
|
|
||||||
|
lstrcpynA(buffer, "TT ", max_len-1);
|
||||||
|
|
||||||
|
if((ret = encodeBase64(bin, bin_len, buffer+3,
|
||||||
|
max_len-3, &buffer_len)) != SEC_E_OK)
|
||||||
|
goto end;
|
||||||
|
|
||||||
|
TRACE("Server sent: %s\n", debugstr_a(buffer));
|
||||||
|
|
||||||
|
/* send TT base64 blob to ntlm_auth */
|
||||||
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
||||||
|
goto end;
|
||||||
|
|
||||||
|
TRACE("Helper replied: %s\n", debugstr_a(buffer));
|
||||||
|
|
||||||
|
if( (strncmp(buffer, "KK ", 3) != 0) &&
|
||||||
|
(strncmp(buffer, "AF ", 3) !=0))
|
||||||
|
{
|
||||||
|
TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
|
||||||
|
HeapFree(GetProcessHeap(), 0, buffer);
|
||||||
|
HeapFree(GetProcessHeap(), 0, bin);
|
||||||
|
return SEC_E_INVALID_TOKEN;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* decode the blob and send it to server */
|
||||||
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
|
||||||
|
&bin_len)) != SEC_E_OK)
|
||||||
|
{
|
||||||
|
HeapFree(GetProcessHeap(), 0, buffer);
|
||||||
|
HeapFree(GetProcessHeap(), 0, bin);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
phNewContext->dwUpper = ctxt_attr;
|
||||||
|
phNewContext->dwLower = ret;
|
||||||
|
|
||||||
|
ret = SEC_E_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* put the decoded client blob into the out buffer */
|
||||||
|
|
||||||
|
if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
|
||||||
|
{
|
||||||
|
if (pOutput)
|
||||||
|
{
|
||||||
|
pOutput->cBuffers = 1;
|
||||||
|
pOutput->pBuffers[0].pvBuffer = SECUR32_ALLOC(bin_len);
|
||||||
|
pOutput->pBuffers[0].cbBuffer = bin_len;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!pOutput || !pOutput->cBuffers || pOutput->pBuffers[0].cbBuffer < bin_len)
|
||||||
|
{
|
||||||
|
TRACE("out buffer is NULL or has not enough space\n");
|
||||||
|
ret = SEC_E_BUFFER_TOO_SMALL;
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!pOutput->pBuffers[0].pvBuffer)
|
||||||
|
{
|
||||||
|
TRACE("out buffer is NULL\n");
|
||||||
|
ret = SEC_E_INTERNAL_ERROR;
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
|
||||||
|
pOutput->pBuffers[0].cbBuffer = bin_len;
|
||||||
|
pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
|
||||||
|
memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
|
||||||
|
|
||||||
|
if(ret != SEC_I_CONTINUE_NEEDED)
|
||||||
|
{
|
||||||
|
TRACE("Deleting password!\n");
|
||||||
|
if(helper->password)
|
||||||
|
memset(helper->password, 0, helper->pwlen-2);
|
||||||
|
HeapFree(GetProcessHeap(), 0, helper->password);
|
||||||
|
}
|
||||||
|
end:
|
||||||
|
HeapFree(GetProcessHeap(), 0, buffer);
|
||||||
|
HeapFree(GetProcessHeap(), 0, bin);
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue