97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
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// Code adapted from the NodeJS kerberos library:
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//
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// https://github.com/christkv/kerberos/tree/master/lib/win32/kerberos_sspi.c
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//
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// Under the terms of the Apache License, Version 2.0:
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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#include <stdlib.h>
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#include "sspi_windows.h"
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static HINSTANCE sspi_secur32_dll = NULL;
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int load_secur32_dll()
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{
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sspi_secur32_dll = LoadLibrary("secur32.dll");
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if (sspi_secur32_dll == NULL) {
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return GetLastError();
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}
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return 0;
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}
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SECURITY_STATUS SEC_ENTRY call_sspi_encrypt_message(PCtxtHandle phContext, unsigned long fQOP, PSecBufferDesc pMessage, unsigned long MessageSeqNo)
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{
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if (sspi_secur32_dll == NULL) {
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return -1;
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}
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encryptMessage_fn pfn_encryptMessage = (encryptMessage_fn) GetProcAddress(sspi_secur32_dll, "EncryptMessage");
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if (!pfn_encryptMessage) {
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return -2;
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}
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return (*pfn_encryptMessage)(phContext, fQOP, pMessage, MessageSeqNo);
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}
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SECURITY_STATUS SEC_ENTRY call_sspi_acquire_credentials_handle(
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LPSTR pszPrincipal, LPSTR pszPackage, unsigned long fCredentialUse,
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void *pvLogonId, void *pAuthData, SEC_GET_KEY_FN pGetKeyFn, void *pvGetKeyArgument,
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PCredHandle phCredential, PTimeStamp ptsExpiry)
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{
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if (sspi_secur32_dll == NULL) {
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return -1;
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}
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acquireCredentialsHandle_fn pfn_acquireCredentialsHandle;
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#ifdef _UNICODE
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pfn_acquireCredentialsHandle = (acquireCredentialsHandle_fn) GetProcAddress(sspi_secur32_dll, "AcquireCredentialsHandleW");
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#else
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pfn_acquireCredentialsHandle = (acquireCredentialsHandle_fn) GetProcAddress(sspi_secur32_dll, "AcquireCredentialsHandleA");
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#endif
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if (!pfn_acquireCredentialsHandle) {
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return -2;
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}
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return (*pfn_acquireCredentialsHandle)(
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pszPrincipal, pszPackage, fCredentialUse, pvLogonId, pAuthData,
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pGetKeyFn, pvGetKeyArgument, phCredential, ptsExpiry);
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}
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SECURITY_STATUS SEC_ENTRY call_sspi_initialize_security_context(
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PCredHandle phCredential, PCtxtHandle phContext, LPSTR pszTargetName,
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unsigned long fContextReq, unsigned long Reserved1, unsigned long TargetDataRep,
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PSecBufferDesc pInput, unsigned long Reserved2, PCtxtHandle phNewContext,
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PSecBufferDesc pOutput, unsigned long *pfContextAttr, PTimeStamp ptsExpiry)
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{
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if (sspi_secur32_dll == NULL) {
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return -1;
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}
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initializeSecurityContext_fn pfn_initializeSecurityContext;
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#ifdef _UNICODE
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pfn_initializeSecurityContext = (initializeSecurityContext_fn) GetProcAddress(sspi_secur32_dll, "InitializeSecurityContextW");
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#else
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pfn_initializeSecurityContext = (initializeSecurityContext_fn) GetProcAddress(sspi_secur32_dll, "InitializeSecurityContextA");
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#endif
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if (!pfn_initializeSecurityContext) {
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return -2;
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}
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return (*pfn_initializeSecurityContext)(
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phCredential, phContext, pszTargetName, fContextReq, Reserved1, TargetDataRep,
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pInput, Reserved2, phNewContext, pOutput, pfContextAttr, ptsExpiry);
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}
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SECURITY_STATUS SEC_ENTRY call_sspi_query_context_attributes(PCtxtHandle phContext, unsigned long ulAttribute, void *pBuffer)
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{
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if (sspi_secur32_dll == NULL) {
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return -1;
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}
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queryContextAttributes_fn pfn_queryContextAttributes;
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#ifdef _UNICODE
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pfn_queryContextAttributes = (queryContextAttributes_fn) GetProcAddress(sspi_secur32_dll, "QueryContextAttributesW");
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#else
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pfn_queryContextAttributes = (queryContextAttributes_fn) GetProcAddress(sspi_secur32_dll, "QueryContextAttributesA");
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#endif
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if (!pfn_queryContextAttributes) {
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return -2;
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}
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return (*pfn_queryContextAttributes)(phContext, ulAttribute, pBuffer);
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}
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