mirror of
https://github.com/PowerShell/Win32-OpenSSH.git
synced 2025-07-24 14:35:35 +02:00
5-12 C2
This commit is contained in:
parent
fedeacacf5
commit
a9f460a5c8
@ -37,7 +37,6 @@
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#include <Ntsecapi.h>
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#endif
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#include "LsaString.h"
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#ifdef __VS_BUILD__
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@ -89,8 +88,7 @@ fail:
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LsaApi.FreeLsaHeap((*lsaStr));
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}
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DBG_MSG("ERROR. Cannot allocate LSA UNICODE_STRING...\n");
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}
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return ntStat;
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@ -166,10 +164,6 @@ NTSTATUS FillUnicodeString(UNICODE_STRING *lsaStr, const Char *str)
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fail:
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if (ntStat)
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{
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DBG_MSG("ERROR. Cannot fill UNICODE_STRING...\n");
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}
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return ntStat;
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}
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@ -35,12 +35,8 @@
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#define UMDF_USING_NTSTATUS
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#include <Windows.h>
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#include <LsaLookup.h>
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#include <Ntsecapi.h>
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#endif
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#include "Ssh-lsa.h"
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#ifdef __cplusplus
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@ -98,8 +94,7 @@ NTSTATUS NTAPI LsaApInitializePackage(ULONG pkgId,
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PLSA_STRING confident,
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PLSA_STRING *pkgName)
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{
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DBG_ENTRY("LsaApInitializePackage");
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//
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// Save table with adresses of LSA API functions.
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//
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@ -110,8 +105,7 @@ NTSTATUS NTAPI LsaApInitializePackage(ULONG pkgId,
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// Allocate buffer for package name.
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//
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DBG_MSG("Allocating buffer for pkgName...\n");
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*pkgName = (PLSA_STRING) LsaApi.AllocateLsaHeap(sizeof(LSA_STRING));
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(*pkgName) -> Buffer = (PCHAR) LsaApi.AllocateLsaHeap(PKG_NAME_SIZE);
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@ -120,29 +114,14 @@ NTSTATUS NTAPI LsaApInitializePackage(ULONG pkgId,
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// Fill buffer with our name.
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//
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DBG_MSG("Setting up pkgName...\n");
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memcpy((*pkgName) -> Buffer, PKG_NAME, PKG_NAME_SIZE);
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(*pkgName) -> Length = PKG_NAME_SIZE - 1;
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(*pkgName) -> MaximumLength = PKG_NAME_SIZE;
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//
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// Initialize OpenSSL lib.
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//
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DBG_MSG("Initializing OpenSSL...\n");
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OPENSSL(SSL_library_init());
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DBG_MSG("Initializing OpenSSL digest table...\n");
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OPENSSL(OpenSSL_add_all_digests());
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DBG_LEAVE("LsaApInitializePackage");
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return STATUS_SUCCESS;
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}
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@ -175,8 +154,7 @@ fail:
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if (exitCode)
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{
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DBG_MSG("ERROR. Cannot to copy SID.\n");
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}
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}
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return exitCode;
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}
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@ -193,8 +171,7 @@ fail:
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Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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{
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DBG_ENTRY("LsaAllocTokenInfo");
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Int exitCode = 1;
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DWORD cbSize = 0;
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@ -215,8 +192,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// Allocate LSA_TOKEN_INFORMATION_V1 struct for output,
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//
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DBG_MSG("Allocating LSA_TOKEN_INFORMATION_V1 buffer...\n");
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tokenInfo = (PLSA_TOKEN_INFORMATION_V1)
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LsaApi.AllocateLsaHeap(sizeof(LSA_TOKEN_INFORMATION_V1));
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@ -228,8 +204,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// becouse SIDs must be allocated as separately memory blocks.
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//
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DBG_MSG("Copying TOKEN_USER...\n");
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GetTokenInformation(token, TokenUser, NULL, 0, &cbSize);
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pUserToken = (PTOKEN_USER) LocalAlloc(LPTR, cbSize);
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@ -245,8 +220,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// Copy TOKEN_GROUPS part from input token.
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//
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DBG_MSG("Copying TOKEN_GROUP...\n");
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GetTokenInformation(token, TokenGroups, NULL, 0, &cbSize);
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pGroupsToken = (PTOKEN_GROUPS) LocalAlloc(LPTR, cbSize);
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@ -275,8 +249,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// in this struct, so we can retrieve it directly to output buffer.
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//
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DBG_MSG("Retrieving TOKEN_PRIVILEGES directly...\n");
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GetTokenInformation(token, TokenPrivileges, NULL, 0, &cbSize);
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tokenInfo -> Privileges = (PTOKEN_PRIVILEGES) LsaApi.AllocateLsaHeap(cbSize);
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@ -288,8 +261,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// Copy TOKEN_OWNER part from input token.
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//
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DBG_MSG("Copying TOKEN_OWNER...\n");
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GetTokenInformation(token, TokenOwner, NULL, 0, &cbSize);
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pOwnerToken = (PTOKEN_OWNER) LocalAlloc(LPTR, cbSize);
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@ -303,8 +275,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// Copy TOKEN_PRIMARY_GROUP part from input token.
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//
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DBG_MSG("Copying TOKEN_PRIMARY_GROUP...\n");
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GetTokenInformation(token, TokenPrimaryGroup, NULL, 0, &cbSize);
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pPrimaryGroupToken = (PTOKEN_PRIMARY_GROUP) LocalAlloc(LPTR, cbSize);
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@ -319,8 +290,7 @@ Int LsaAllocTokenInfo(PLSA_TOKEN_INFORMATION_V1 &tokenInfo, HANDLE token)
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// Copy TOKEN_DEFAULT_DACL part from input token.
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//
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DBG_MSG("Retrieving TOKEN_DEFAULT_DACL...\n");
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//GetTokenInformation(token, TokenDefaultDacl, NULL, 0, &cbSize);
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//pDaclToken = (PTOKEN_DEFAULT_DACL) LocalAlloc(LPTR, cbSize);
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@ -352,153 +322,12 @@ fail:
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if (exitCode)
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{
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DBG_MSG("ERROR. Cannot allocate token information.\n");
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}
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DBG_LEAVE("LsaAllocTokenInfo");
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}
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return exitCode;
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}
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//
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// This function performs user authorization.
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//
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// homedir - user's home dir if authorized success (OUT)
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// token - handle to user access token (IN)
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// auth - SshLsaAuth struct with authorization data (IN)
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//
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// RETURNS: 0 if OK.
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//
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Int AuthorizeUser(wchar_t homeDir[MAX_PATH], HANDLE token, SshLsaAuth *auth)
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{
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DBG_ENTRY("AuthorizeUser");
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Int exitCode = 1;
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Int authorized = 0;
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PROFILEINFOW profile = {sizeof(PROFILEINFOW)};
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Key *key = NULL;
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wchar_t keyFileName[MAX_PATH];
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wchar_t *nextFile = NULL;
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//Char homeDir[MAX_PATH];
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DWORD homeDirSize = MAX_PATH;
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//
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// Compute adressess of SshLsaAuth fields.
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//
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BYTE *userPtr = (BYTE *) &(auth -> buf_);
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BYTE *signPtr = (BYTE *) userPtr + auth -> userSize_;
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BYTE *dataPtr = (BYTE *) signPtr + auth -> signSize_;
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BYTE *blobPtr = (BYTE *) dataPtr + auth -> dataSize_;
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BYTE *authPtr = (BYTE *) blobPtr + auth -> pkBlobSize_;
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//
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// Create Key struct from pkBlob.
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//
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DBG_MSG("Reproduce Key struct from blob...n");
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FAIL(KeyFromBlob(key, blobPtr, auth -> pkBlobSize_));
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FAIL(key == NULL);
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//
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// Retrieve user's home directory.
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//
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DBG_MSG("Retrieving user's homedir...");
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profile.lpUserName = (wchar_t *) userPtr;
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FAIL(LoadUserProfileW(token, &profile) == FALSE);
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FAIL(GetUserProfileDirectoryW(token, homeDir, &homeDirSize) == FALSE);
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//
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// Try authorize using authkey files given by ssh.
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//
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nextFile = (wchar_t *) authPtr;
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for (Unsigned Int i = 0; Not(authorized) && i < auth -> authFilesCount_; i++)
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{
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wchar_t *fileToCheck = nextFile;
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DBG_MSG("Trying keys from [%ls]...\n", nextFile);
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//
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// Expand relative paths to user homedir like openssh do.
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//
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if (wcschr(nextFile, ':') == NULL)
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{
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DBG_MSG("Expanding relative path to user homedir.\n");
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#ifndef __VS_BUILD__
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snwprintf(keyFileName, sizeof(keyFileName),
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L"%ls\\%ls", homeDir, nextFile);
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#else
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_snwprintf(keyFileName, sizeof(keyFileName),
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L"%ls\\%ls", homeDir, nextFile);
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#endif
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fileToCheck = keyFileName;
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}
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//
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// Try to find key in next 'authorized_key' file.
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//
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if(FindKeyInFile(fileToCheck, key) == 0)
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{
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//
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// Verify given key.
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//
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DBG_MSG("Veryfing key...\n");
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authorized = (VerifyKey(key, signPtr, auth -> signSize_,
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dataPtr, auth -> dataSize_,
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auth -> dataFellow_) == 0);
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}
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//
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// Go to next file in list.
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//
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nextFile = wcschr(nextFile, 0) + sizeof(wchar_t);
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}
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FAIL(Not(authorized));
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exitCode = 0;
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fail:
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if (exitCode)
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{
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DBG_MSG("ERROR. Auhtorization failed (%u).\n", GetLastError());
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//
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// If authorization error clear homedir.
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//
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ZeroMemory(homeDir, MAX_PATH);
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}
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UnloadUserProfile(token, profile.hProfile);
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DBG_LEAVE("AuthorizeUser");
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return exitCode;
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}
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//
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// Called, when client logon process want logon user.
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@ -527,8 +356,7 @@ NTSTATUS NTAPI
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PLSA_UNICODE_STRING *accountName,
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PLSA_UNICODE_STRING *authority)
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{
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DBG_ENTRY("LsaApLogonUser");
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NTSTATUS ntStat = STATUS_LOGON_FAILURE;
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Int exitCode = 1;
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@ -538,8 +366,6 @@ NTSTATUS NTAPI
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//
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wchar_t *inUserName = NULL;
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SshLsaAuth *auth = (SshLsaAuth *) authData;
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//
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// Buffers used for retrieving user auth data from SAM database.
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@ -579,38 +405,20 @@ NTSTATUS NTAPI
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// Check are input args ok?
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//
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DBG_MSG("Checking input args...\n");
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inUserName = (wchar_t *) (((char*)authData)+4);
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FAIL(auth == NULL);
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FAIL(auth -> buf_ == NULL);
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inUserName = (wchar_t *) auth -> buf_;
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DBG_MSG("Checking SshLsaAuth size...\n");
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FAIL(auth -> totalSize_ != authDataSize);
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DBG_MSG("logonType = %u\n", logonType);
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DBG_MSG("userName = [%ls]\n", inUserName);
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//
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// Get info about client process.
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//
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DBG_MSG("Retreving info about client process...\n");
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NTFAIL(LsaApi.GetClientInfo(&clientInfo));
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DBG_MSG("Client info:\n");
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DBG_MSG(" LogonId : %d\n", clientInfo.LogonId);
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DBG_MSG(" ProcessID : %d\n", clientInfo.ProcessID);
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DBG_MSG(" ThreadID : %d\n", clientInfo.ThreadID);
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DBG_MSG(" HasTcbPrivilege : %d\n", clientInfo.HasTcbPrivilege);
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DBG_MSG(" Impersonating : %d\n", clientInfo.Impersonating);
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DBG_MSG(" Restricted : %d\n", clientInfo.Restricted);
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//
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// Fail if client has not got SeTcbPrivilege.
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//
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@ -621,8 +429,7 @@ NTSTATUS NTAPI
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// Allocate buffers.
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//
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DBG_MSG("Allocating string buffers...\n");
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NTFAIL(LsaAllocUnicodeString(authority, MAX_ACCOUNT_NAME_SIZE));
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NTFAIL(LsaAllocUnicodeString(accountName, MAX_ACCOUNT_NAME_SIZE));
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NTFAIL(LsaAllocUnicodeString(&flatName, MAX_ACCOUNT_NAME_SIZE));
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@ -631,8 +438,7 @@ NTSTATUS NTAPI
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// Retrieve user data from SAM base.
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//
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DBG_MSG("GetAuthDataForUser()...\n");
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lstrcpyW(samUserBuf, inUserName);
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samUserBuf[MAX_ACCOUNT_NAME_SIZE] = 0x00;
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@ -642,14 +448,12 @@ NTSTATUS NTAPI
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NTFAIL(LsaApi.GetAuthDataForUser(&samUser, SecNameFlat, NULL,
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&userAuth, &userAuthSize, flatName));
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DBG_MSG("userAuthSize = %u\n", userAuthSize);
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//
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// Create token basing on SAM data.
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//
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DBG_MSG("ConvertAuthDataToToken()...\n");
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memcpy (tokenSource.SourceName, "_sshlsa_", 8);
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AllocateLocallyUniqueId(&tokenSource.SourceIdentifier);
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@ -664,28 +468,17 @@ NTSTATUS NTAPI
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// Print token info.
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//
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DBG_PRINT_TOKEN(token);
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//
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// Perform authorization and retrieve homeDir if success.
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//
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DBG_MSG("Performing authorization...\n");
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FAIL(AuthorizeUser(homeDir, token, auth));
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//
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// Allocate client buffer and copy home dir to it.
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//
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DBG_MSG("Filling profile buffer...\n");
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NTFAIL(LsaApi.AllocateClientBuffer(request, MAX_PATH * sizeof(wchar_t), profile));
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*profileSize = MAX_PATH;
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DBG_MSG("homeDir = %ls\n", homeDir);
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NTFAIL(LsaApi.CopyToClientBuffer(request, MAX_PATH * sizeof(wchar_t),
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*profile, homeDir));
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@ -695,8 +488,7 @@ NTSTATUS NTAPI
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// here.
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//
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DBG_MSG("Creating token infos for LSA output...\n");
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PLSA_TOKEN_INFORMATION_V1 outTokenInfo;
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FAIL(LsaAllocTokenInfo(outTokenInfo, token));
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@ -709,24 +501,9 @@ NTSTATUS NTAPI
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// Duplicate token from lsa space to client space.
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//
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DBG_MSG("Duplicating token into client space...\n");
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NTFAIL(LsaApi.DuplicateHandle(token, &clientToken));
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//
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// Create new logon session.
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//
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/*
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DBG_MSG("Creating new logon session...\n");
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FAIL(AllocateLocallyUniqueId(logonId) == FALSE);
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*subStat = LsaApi.CreateLogonSession(logonId);
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FAIL(*subStat);
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*/
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ntStat = STATUS_SUCCESS;
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exitCode = 0;
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@ -735,9 +512,6 @@ fail:
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if (exitCode)
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{
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DBG_MSG("ERROR. Cannot logon user "
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"(err = %u, ntStat = %x, subNtStat = %x).\n",
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GetLastError(), ntStat, *subStat);
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ntStat = STATUS_LOGON_FAILURE;
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@ -749,8 +523,7 @@ fail:
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}
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else
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{
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DBG_MSG("LsaApLogonUser : OK.\n");
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}
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}
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//
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// Cleanup temporary buffers.
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@ -758,12 +531,10 @@ fail:
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CloseHandle(token);
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DBG_MSG("Freeing temp buffers...\n");
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LsaFreeUnicodeString(flatName);
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DBG_LEAVE("LsaApLogonUser");
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return ntStat;
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}
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@ -775,8 +546,7 @@ fail:
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|
||||
VOID NTAPI LsaApLogonTerminated(PLUID logonId)
|
||||
{
|
||||
DBG_MSG("LsaApLogonTerminated(id = %d)...\n", *logonId);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
@ -800,18 +570,13 @@ BOOL APIENTRY DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpRes)
|
||||
// Initialize log.
|
||||
//
|
||||
|
||||
DBG_INIT(NULL);
|
||||
|
||||
DBG_MSG("DllMain -> DLL_PROCESS_ATTACH\n");
|
||||
|
||||
DBG_MSG("[SSH-LSA-%s]\n", VERSION);
|
||||
|
||||
|
||||
|
||||
//
|
||||
// Load 'ntdll.dll' module.
|
||||
//
|
||||
|
||||
DBG_MSG("Loading 'ntdll.dll' module...\n");
|
||||
|
||||
|
||||
NtDll = GetModuleHandle("ntdll.dll");
|
||||
|
||||
FAIL(NtDll == NULL);
|
||||
@ -820,80 +585,12 @@ BOOL APIENTRY DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpRes)
|
||||
// Load RtlInitUnicodeString() function from 'ntdll.dll'.
|
||||
//
|
||||
|
||||
DBG_MSG("Retrieving 'RtlInitUnicodeString' address...\n");
|
||||
|
||||
|
||||
RtlInitUnicodeString = (RtlInitUnicodeStringPtr)
|
||||
GetProcAddress(NtDll, "RtlInitUnicodeString");
|
||||
|
||||
FAIL(RtlInitUnicodeString == NULL);
|
||||
|
||||
//
|
||||
// This code is code for dynamic, 'on the fly' OpenSSL libs loading.
|
||||
//
|
||||
|
||||
#ifdef DYNAMIC_OPENSSL
|
||||
|
||||
//
|
||||
// Load 'libssl.dll' module.
|
||||
//
|
||||
|
||||
DBG_MSG("Loading 'libssl.dll' module...\n");
|
||||
|
||||
LibSSL = LoadLibrary("libssl.dll");
|
||||
|
||||
FAIL(LibSSL == NULL);
|
||||
|
||||
//
|
||||
// Load 'libcrypto.dll' module.
|
||||
//
|
||||
|
||||
DBG_MSG("Loading 'libcrypto.dll' module...\n");
|
||||
|
||||
LibCrypto = LoadLibrary("libcrypto.dll");
|
||||
|
||||
FAIL(LibCrypto == NULL);
|
||||
|
||||
//
|
||||
// Load 'libSSL.dll' functions.
|
||||
//
|
||||
|
||||
DynSSL.SSL_library_init = (SSL_library_init_Ptr) GetProcAddress(LibSSL, "SSL_library_init");
|
||||
|
||||
//
|
||||
// Load 'libcrypto.dll' functions.
|
||||
//
|
||||
|
||||
DynSSL.EVP_sha1 = (EVP_sha1_Ptr) GetProcAddress(LibCrypto, "EVP_sha1");
|
||||
DynSSL.EVP_DigestInit = (EVP_DigestInit_Ptr) GetProcAddress(LibCrypto, "EVP_DigestInit");
|
||||
DynSSL.EVP_DigestFinal = (EVP_DigestFinal_Ptr) GetProcAddress(LibCrypto, "EVP_DigestFinal");
|
||||
DynSSL.EVP_DigestUpdate = (EVP_DigestUpdate_Ptr) GetProcAddress(LibCrypto, "EVP_DigestUpdate");
|
||||
DynSSL.EVP_Digest = (EVP_Digest_Ptr) GetProcAddress(LibCrypto, "EVP_Digest");
|
||||
|
||||
DynSSL.EVP_get_digestbyname = (EVP_get_digestbyname_Ptr) GetProcAddress(LibCrypto, "EVP_get_digestbyname");
|
||||
|
||||
DynSSL.DSA_SIG_free = (DSA_SIG_free_Ptr) GetProcAddress(LibCrypto, "DSA_SIG_free");
|
||||
DynSSL.DSA_SIG_new = (DSA_SIG_new_Ptr) GetProcAddress(LibCrypto, "DSA_SIG_new");
|
||||
DynSSL.DSA_do_verify = (DSA_do_verify_Ptr) GetProcAddress(LibCrypto, "DSA_do_verify");
|
||||
DynSSL.DSA_new = (DSA_new_Ptr) GetProcAddress(LibCrypto, "DSA_new");
|
||||
DynSSL.DSA_free = (DSA_free_Ptr) GetProcAddress(LibCrypto, "DSA_free");
|
||||
|
||||
DynSSL.RSA_size = (RSA_size_Ptr) GetProcAddress(LibCrypto, "RSA_size");
|
||||
DynSSL.RSA_new = (RSA_new_Ptr) GetProcAddress(LibCrypto, "RSA_new");
|
||||
DynSSL.RSA_free = (RSA_free_Ptr) GetProcAddress(LibCrypto, "RSA_free");
|
||||
|
||||
DynSSL.BN_new = (BN_new_Ptr) GetProcAddress(LibCrypto, "BN_new");
|
||||
DynSSL.BN_bin2bn = (BN_bin2bn_Ptr) GetProcAddress(LibCrypto, "BN_bin2bn");
|
||||
DynSSL.BN_num_bits = (BN_num_bits_Ptr) GetProcAddress(LibCrypto, "BN_num_bits");
|
||||
DynSSL.BN_cmp = (BN_cmp_Ptr) GetProcAddress(LibCrypto, "BN_cmp");
|
||||
|
||||
DynSSL.RSA_public_decrypt = (RSA_public_decrypt_Ptr) GetProcAddress(LibCrypto, "RSA_public_decrypt");
|
||||
|
||||
DynSSL.OBJ_nid2sn = (OBJ_nid2sn_Ptr) GetProcAddress(LibCrypto, "OBJ_nid2sn");
|
||||
|
||||
DynSSL.OpenSSL_add_all_digests = (OpenSSL_add_all_digests_Ptr) GetProcAddress(LibCrypto, "OpenSSL_add_all_digests");
|
||||
|
||||
#endif
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
@ -903,18 +600,8 @@ BOOL APIENTRY DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpRes)
|
||||
|
||||
case DLL_PROCESS_DETACH:
|
||||
{
|
||||
DBG_MSG("DllMain -> DLL_PROCESS_DETACH\n");
|
||||
|
||||
|
||||
FreeModule(NtDll);
|
||||
|
||||
|
||||
#ifdef DYNAMIC_OPENSSL
|
||||
|
||||
FreeModule(LibCrypto);
|
||||
|
||||
FreeModule(LibSSL);
|
||||
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
@ -924,18 +611,8 @@ fail:
|
||||
|
||||
if (exitCode == FALSE)
|
||||
{
|
||||
DBG_MSG("ERROR. Cannot initialize DLL (%u).\n", GetLastError());
|
||||
|
||||
|
||||
FreeModule(NtDll);
|
||||
|
||||
|
||||
#ifdef DYNAMIC_OPENSSL
|
||||
|
||||
FreeModule(LibCrypto);
|
||||
|
||||
FreeModule(LibSSL);
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
return exitCode;
|
||||
@ -953,9 +630,7 @@ NTSTATUS NTAPI LsaApCallPackagePassthrough(PLSA_CLIENT_REQUEST request,
|
||||
PULONG outBufSize,
|
||||
PNTSTATUS status)
|
||||
{
|
||||
DBG_ENTRY("LsaApCallPackagePassthrough(");
|
||||
DBG_LEAVE("LsaApCallPackagePassthrough(");
|
||||
|
||||
|
||||
return STATUS_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
@ -971,9 +646,7 @@ NTSTATUS NTAPI LsaApCallPackageUntrusted(PLSA_CLIENT_REQUEST request,
|
||||
PULONG outBufSize,
|
||||
PNTSTATUS status)
|
||||
{
|
||||
DBG_ENTRY("LsaApCallPackageUntrusted");
|
||||
DBG_LEAVE("LsaApCallPackageUntrusted");
|
||||
|
||||
|
||||
return STATUS_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
@ -986,9 +659,7 @@ NTSTATUS NTAPI LsaApCallPackage(PLSA_CLIENT_REQUEST request, PVOID submitBuf,
|
||||
PVOID *outBuf, PULONG outBufSize,
|
||||
PNTSTATUS status)
|
||||
{
|
||||
DBG_ENTRY("LsaApCallPackage");
|
||||
DBG_LEAVE("LsaApCallPackage");
|
||||
|
||||
|
||||
return STATUS_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
Loading…
x
Reference in New Issue
Block a user