Move libcli/auth to the top level

1 files changed, 0 insertions, 603 deletions

diff --git a/source4/auth/ntlm/ntlm_check.c b/source4/auth/ntlm/ntlm_check.c
deleted file mode 100644
index 0805b1b043..0000000000
--- a/source4/auth/ntlm/ntlm_check.c
+++ /dev/null
@@ -1,603 +0,0 @@
-/* 
-   Unix SMB/CIFS implementation.
-   Password and authentication handling
-   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2004
-   Copyright (C) Gerald Carter                             2003
-   Copyright (C) Luke Kenneth Casson Leighton         1996-2000
-   
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-   
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-   
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "../lib/crypto/crypto.h"
-#include "librpc/gen_ndr/netlogon.h"
-#include "libcli/auth/libcli_auth.h"
-#include "auth/ntlm/ntlm_check.h"
-
-/****************************************************************************
- Core of smb password checking routine.
-****************************************************************************/
-
-static bool smb_pwd_check_ntlmv1(TALLOC_CTX *mem_ctx,
-				 const DATA_BLOB *nt_response,
-				 const uint8_t *part_passwd,
-				 const DATA_BLOB *sec_blob,
-				 DATA_BLOB *user_sess_key)
-{
-	/* Finish the encryption of part_passwd. */
-	uint8_t p24[24];
-	
-	if (part_passwd == NULL) {
-		DEBUG(10,("No password set - DISALLOWING access\n"));
-		/* No password set - always false ! */
-		return false;
-	}
-	
-	if (sec_blob->length != 8) {
-		DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challenge size (%lu)\n", 
-			  (unsigned long)sec_blob->length));
-		return false;
-	}
-	
-	if (nt_response->length != 24) {
-		DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect password length (%lu)\n", 
-			  (unsigned long)nt_response->length));
-		return false;
-	}
-
-	SMBOWFencrypt(part_passwd, sec_blob->data, p24);
-	
-#if DEBUG_PASSWORD
-	DEBUG(100,("Part password (P16) was |\n"));
-	dump_data(100, part_passwd, 16);
-	DEBUGADD(100,("Password from client was |\n"));
-	dump_data(100, nt_response->data, nt_response->length);
-	DEBUGADD(100,("Given challenge was |\n"));
-	dump_data(100, sec_blob->data, sec_blob->length);
-	DEBUGADD(100,("Value from encryption was |\n"));
-	dump_data(100, p24, 24);
-#endif
-	if (memcmp(p24, nt_response->data, 24) == 0) {
-		if (user_sess_key != NULL) {
-			*user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
-			SMBsesskeygen_ntv1(part_passwd, user_sess_key->data);
-		}
-		return true;
-	} 
-	return false;
-}
-
-/****************************************************************************
- Core of smb password checking routine. (NTLMv2, LMv2)
- Note:  The same code works with both NTLMv2 and LMv2.
-****************************************************************************/
-
-static bool smb_pwd_check_ntlmv2(TALLOC_CTX *mem_ctx,
-				 const DATA_BLOB *ntv2_response,
-				 const uint8_t *part_passwd,
-				 const DATA_BLOB *sec_blob,
-				 const char *user, const char *domain,
-				 bool upper_case_domain, /* should the domain be transformed into upper case? */
-				 DATA_BLOB *user_sess_key)
-{
-	/* Finish the encryption of part_passwd. */
-	uint8_t kr[16];
-	uint8_t value_from_encryption[16];
-	DATA_BLOB client_key_data;
-
-	if (part_passwd == NULL) {
-		DEBUG(10,("No password set - DISALLOWING access\n"));
-		/* No password set - always false */
-		return false;
-	}
-
-	if (sec_blob->length != 8) {
-		DEBUG(0, ("smb_pwd_check_ntlmv2: incorrect challenge size (%lu)\n", 
-			  (unsigned long)sec_blob->length));
-		return false;
-	}
-	
-	if (ntv2_response->length < 24) {
-		/* We MUST have more than 16 bytes, or the stuff below will go
-		   crazy.  No known implementation sends less than the 24 bytes
-		   for LMv2, let alone NTLMv2. */
-		DEBUG(0, ("smb_pwd_check_ntlmv2: incorrect password length (%lu)\n", 
-			  (unsigned long)ntv2_response->length));
-		return false;
-	}
-
-	client_key_data = data_blob_talloc(mem_ctx, ntv2_response->data+16, ntv2_response->length-16);
-	/* 
-	   todo:  should we be checking this for anything?  We can't for LMv2, 
-	   but for NTLMv2 it is meant to contain the current time etc.
-	*/
-
-	if (!ntv2_owf_gen(part_passwd, user, domain, upper_case_domain, kr)) {
-		return false;
-	}
-
-	SMBOWFencrypt_ntv2(kr, sec_blob, &client_key_data, value_from_encryption);
-
-#if DEBUG_PASSWORD
-	DEBUG(100,("Part password (P16) was |\n"));
-	dump_data(100, part_passwd, 16);
-	DEBUGADD(100,("Password from client was |\n"));
-	dump_data(100, ntv2_response->data, ntv2_response->length);
-	DEBUGADD(100,("Variable data from client was |\n"));
-	dump_data(100, client_key_data.data, client_key_data.length);
-	DEBUGADD(100,("Given challenge was |\n"));
-	dump_data(100, sec_blob->data, sec_blob->length);
-	DEBUGADD(100,("Value from encryption was |\n"));
-	dump_data(100, value_from_encryption, 16);
-#endif
-	data_blob_clear_free(&client_key_data);
-	if (memcmp(value_from_encryption, ntv2_response->data, 16) == 0) { 
-		if (user_sess_key != NULL) {
-			*user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
-			SMBsesskeygen_ntv2(kr, value_from_encryption, user_sess_key->data);
-		}
-		return true;
-	}
-	return false;
-}
-
-/****************************************************************************
- Core of smb password checking routine. (NTLMv2, LMv2)
- Note:  The same code works with both NTLMv2 and LMv2.
-****************************************************************************/
-
-static bool smb_sess_key_ntlmv2(TALLOC_CTX *mem_ctx,
-				const DATA_BLOB *ntv2_response,
-				const uint8_t *part_passwd,
-				const DATA_BLOB *sec_blob,
-				const char *user, const char *domain,
-				bool upper_case_domain, /* should the domain be transformed into upper case? */
-				DATA_BLOB *user_sess_key)
-{
-	/* Finish the encryption of part_passwd. */
-	uint8_t kr[16];
-	uint8_t value_from_encryption[16];
-	DATA_BLOB client_key_data;
-
-	if (part_passwd == NULL) {
-		DEBUG(10,("No password set - DISALLOWING access\n"));
-		/* No password set - always false */
-		return false;
-	}
-
-	if (sec_blob->length != 8) {
-		DEBUG(0, ("smb_sess_key_ntlmv2: incorrect challenge size (%lu)\n", 
-			  (unsigned long)sec_blob->length));
-		return false;
-	}
-	
-	if (ntv2_response->length < 24) {
-		/* We MUST have more than 16 bytes, or the stuff below will go
-		   crazy.  No known implementation sends less than the 24 bytes
-		   for LMv2, let alone NTLMv2. */
-		DEBUG(0, ("smb_sess_key_ntlmv2: incorrect password length (%lu)\n", 
-			  (unsigned long)ntv2_response->length));
-		return false;
-	}
-
-	client_key_data = data_blob_talloc(mem_ctx, ntv2_response->data+16, ntv2_response->length-16);
-
-	if (!ntv2_owf_gen(part_passwd, user, domain, upper_case_domain, kr)) {
-		return false;
-	}
-
-	SMBOWFencrypt_ntv2(kr, sec_blob, &client_key_data, value_from_encryption);
-	*user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
-	SMBsesskeygen_ntv2(kr, value_from_encryption, user_sess_key->data);
-	return true;
-}
-
-/**
- * Compare password hashes against those from the SAM
- *
- * @param mem_ctx talloc context
- * @param client_lanman LANMAN password hash, as supplied by the client
- * @param client_nt NT (MD4) password hash, as supplied by the client
- * @param username internal Samba username, for log messages
- * @param client_username username the client used
- * @param client_domain domain name the client used (may be mapped)
- * @param stored_lanman LANMAN password hash, as stored on the SAM
- * @param stored_nt NT (MD4) password hash, as stored on the SAM
- * @param user_sess_key User session key
- * @param lm_sess_key LM session key (first 8 bytes of the LM hash)
- */
-
-NTSTATUS hash_password_check(TALLOC_CTX *mem_ctx,
-				 bool lanman_auth,
-			     const struct samr_Password *client_lanman,
-			     const struct samr_Password *client_nt,
-			     const char *username, 
-			     const struct samr_Password *stored_lanman, 
-			     const struct samr_Password *stored_nt)
-{
-	if (stored_nt == NULL) {
-		DEBUG(3,("ntlm_password_check: NO NT password stored for user %s.\n", 
-			 username));
-	}
-
-	if (client_nt && stored_nt) {
-		if (memcmp(client_nt->hash, stored_nt->hash, sizeof(stored_nt->hash)) == 0) {
-			return NT_STATUS_OK;
-		} else {
-			DEBUG(3,("ntlm_password_check: Interactive logon: NT password check failed for user %s\n",
-				 username));
-			return NT_STATUS_WRONG_PASSWORD;
-		}
-
-	} else if (client_lanman && stored_lanman) {
-		if (!lanman_auth) {
-			DEBUG(3,("ntlm_password_check: Interactive logon: only LANMAN password supplied for user %s, and LM passwords are disabled!\n",
-				 username));
-			return NT_STATUS_WRONG_PASSWORD;
-		}
-		if (strchr_m(username, '@')) {
-			return NT_STATUS_NOT_FOUND;
-		}
-
-		if (memcmp(client_lanman->hash, stored_lanman->hash, sizeof(stored_lanman->hash)) == 0) {
-			return NT_STATUS_OK;
-		} else {
-			DEBUG(3,("ntlm_password_check: Interactive logon: LANMAN password check failed for user %s\n",
-				 username));
-			return NT_STATUS_WRONG_PASSWORD;
-		}
-	}
-	if (strchr_m(username, '@')) {
-		return NT_STATUS_NOT_FOUND;
-	}
-	return NT_STATUS_WRONG_PASSWORD;
-}
-
-/**
- * Check a challenge-response password against the value of the NT or
- * LM password hash.
- *
- * @param mem_ctx talloc context
- * @param challenge 8-byte challenge.  If all zero, forces plaintext comparison
- * @param nt_response 'unicode' NT response to the challenge, or unicode password
- * @param lm_response ASCII or LANMAN response to the challenge, or password in DOS code page
- * @param username internal Samba username, for log messages
- * @param client_username username the client used
- * @param client_domain domain name the client used (may be mapped)
- * @param stored_lanman LANMAN ASCII password from our passdb or similar
- * @param stored_nt MD4 unicode password from our passdb or similar
- * @param user_sess_key User session key
- * @param lm_sess_key LM session key (first 8 bytes of the LM hash)
- */
-
-NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
-				 bool lanman_auth,
-				 bool ntlm_auth,
-			     uint32_t logon_parameters,
-			     const DATA_BLOB *challenge,
-			     const DATA_BLOB *lm_response,
-			     const DATA_BLOB *nt_response,
-			     const char *username, 
-			     const char *client_username, 
-			     const char *client_domain,
-			     const struct samr_Password *stored_lanman, 
-			     const struct samr_Password *stored_nt, 
-			     DATA_BLOB *user_sess_key, 
-			     DATA_BLOB *lm_sess_key)
-{
-	const static uint8_t zeros[8];
-	DATA_BLOB tmp_sess_key;
-
-	if (stored_nt == NULL) {
-		DEBUG(3,("ntlm_password_check: NO NT password stored for user %s.\n", 
-			 username));
-	}
-
-	*lm_sess_key = data_blob(NULL, 0);
-	*user_sess_key = data_blob(NULL, 0);
-
-	/* Check for cleartext netlogon. Used by Exchange 5.5. */
-	if ((logon_parameters & MSV1_0_CLEARTEXT_PASSWORD_ALLOWED)
-	    && challenge->length == sizeof(zeros) 
-	    && (memcmp(challenge->data, zeros, challenge->length) == 0 )) {
-		struct samr_Password client_nt;
-		struct samr_Password client_lm;
-		char *unix_pw = NULL;
-		bool lm_ok;
-
-		DEBUG(4,("ntlm_password_check: checking plaintext passwords for user %s\n",
-			 username));
-		mdfour(client_nt.hash, nt_response->data, nt_response->length);
-		
-		if (lm_response->length && 
-		    (convert_string_talloc(mem_ctx, CH_DOS, CH_UNIX, 
-					  lm_response->data, lm_response->length, 
-					   (void **)&unix_pw, NULL, false))) {
-			if (E_deshash(unix_pw, client_lm.hash)) {
-				lm_ok = true;
-			} else {
-				lm_ok = false;
-			}
-		} else {
-			lm_ok = false;
-		}
-		return hash_password_check(mem_ctx, 
-					   lanman_auth,
-					   lm_ok ? &client_lm : NULL, 
-					   nt_response->length ? &client_nt : NULL, 
-					   username,  
-					   stored_lanman, stored_nt);
-	}
-
-	if (nt_response->length != 0 && nt_response->length < 24) {
-		DEBUG(2,("ntlm_password_check: invalid NT password length (%lu) for user %s\n", 
-			 (unsigned long)nt_response->length, username));		
-	}
-	
-	if (nt_response->length > 24 && stored_nt) {
-		/* We have the NT MD4 hash challenge available - see if we can
-		   use it 
-		*/
-		DEBUG(4,("ntlm_password_check: Checking NTLMv2 password with domain [%s]\n", client_domain));
-		if (smb_pwd_check_ntlmv2(mem_ctx,
-					 nt_response, 
-					 stored_nt->hash, challenge, 
-					 client_username, 
-					 client_domain,
-					 false,
-					 user_sess_key)) {
-			*lm_sess_key = *user_sess_key;
-			if (user_sess_key->length) {
-				lm_sess_key->length = 8;
-			}
-			return NT_STATUS_OK;
-		}
-		
-		DEBUG(4,("ntlm_password_check: Checking NTLMv2 password with uppercased version of domain [%s]\n", client_domain));
-		if (smb_pwd_check_ntlmv2(mem_ctx,
-					 nt_response, 
-					 stored_nt->hash, challenge, 
-					 client_username, 
-					 client_domain,
-					 true,
-					 user_sess_key)) {
-			*lm_sess_key = *user_sess_key;
-			if (user_sess_key->length) {
-				lm_sess_key->length = 8;
-			}
-			return NT_STATUS_OK;
-		}
-		
-		DEBUG(4,("ntlm_password_check: Checking NTLMv2 password without a domain\n"));
-		if (smb_pwd_check_ntlmv2(mem_ctx,
-					 nt_response, 
-					 stored_nt->hash, challenge, 
-					 client_username, 
-					 "",
-					 false,
-					 user_sess_key)) {
-			*lm_sess_key = *user_sess_key;
-			if (user_sess_key->length) {
-				lm_sess_key->length = 8;
-			}
-			return NT_STATUS_OK;
-		} else {
-			DEBUG(3,("ntlm_password_check: NTLMv2 password check failed\n"));
-		}
-	} else if (nt_response->length == 24 && stored_nt) {
-		if (ntlm_auth) {		
-			/* We have the NT MD4 hash challenge available - see if we can
-			   use it (ie. does it exist in the smbpasswd file).
-			*/
-			DEBUG(4,("ntlm_password_check: Checking NT MD4 password\n"));
-			if (smb_pwd_check_ntlmv1(mem_ctx, 
-						 nt_response, 
-						 stored_nt->hash, challenge,
-						 user_sess_key)) {
-				/* The LM session key for this response is not very secure, 
-				   so use it only if we otherwise allow LM authentication */
-				
-				if (lanman_auth && stored_lanman) {
-					*lm_sess_key = data_blob_talloc(mem_ctx, stored_lanman->hash, 8);
-				}
-				return NT_STATUS_OK;
-			} else {
-				DEBUG(3,("ntlm_password_check: NT MD4 password check failed for user %s\n",
-					 username));
-				return NT_STATUS_WRONG_PASSWORD;
-			}
-		} else {
-			DEBUG(2,("ntlm_password_check: NTLMv1 passwords NOT PERMITTED for user %s\n",
-				 username));			
-			/* no return, becouse we might pick up LMv2 in the LM field */
-		}
-	}
-	
-	if (lm_response->length == 0) {
-		DEBUG(3,("ntlm_password_check: NEITHER LanMan nor NT password supplied for user %s\n",
-			 username));
-		return NT_STATUS_WRONG_PASSWORD;
-	}
-	
-	if (lm_response->length < 24) {
-		DEBUG(2,("ntlm_password_check: invalid LanMan password length (%lu) for user %s\n", 
-			 (unsigned long)nt_response->length, username));		
-		return NT_STATUS_WRONG_PASSWORD;
-	}
-		
-	if (!lanman_auth) {
-		DEBUG(3,("ntlm_password_check: Lanman passwords NOT PERMITTED for user %s\n",
-			 username));
-	} else if (!stored_lanman) {
-		DEBUG(3,("ntlm_password_check: NO LanMan password set for user %s (and no NT password supplied)\n",
-			 username));
-	} else if (strchr_m(username, '@')) {
-		DEBUG(3,("ntlm_password_check: NO LanMan password allowed for username@realm logins (user: %s)\n",
-			 username));
-	} else {
-		DEBUG(4,("ntlm_password_check: Checking LM password\n"));
-		if (smb_pwd_check_ntlmv1(mem_ctx,
-					 lm_response, 
-					 stored_lanman->hash, challenge,
-					 NULL)) {
-			/* The session key for this response is still very odd.  
-			   It not very secure, so use it only if we otherwise 
-			   allow LM authentication */
-
-			if (lanman_auth && stored_lanman) {
-				uint8_t first_8_lm_hash[16];
-				memcpy(first_8_lm_hash, stored_lanman->hash, 8);
-				memset(first_8_lm_hash + 8, '\0', 8);
-				*user_sess_key = data_blob_talloc(mem_ctx, first_8_lm_hash, 16);
-				*lm_sess_key = data_blob_talloc(mem_ctx, stored_lanman->hash, 8);
-			}
-			return NT_STATUS_OK;
-		}
-	}
-	
-	if (!stored_nt) {
-		DEBUG(4,("ntlm_password_check: LM password check failed for user, no NT password %s\n",username));
-		return NT_STATUS_WRONG_PASSWORD;
-	}
-	
-	/* This is for 'LMv2' authentication.  almost NTLMv2 but limited to 24 bytes.
-	   - related to Win9X, legacy NAS pass-though authentication
-	*/
-	DEBUG(4,("ntlm_password_check: Checking LMv2 password with domain %s\n", client_domain));
-	if (smb_pwd_check_ntlmv2(mem_ctx,
-				 lm_response, 
-				 stored_nt->hash, challenge, 
-				 client_username,
-				 client_domain,
-				 false,
-				 &tmp_sess_key)) {
-		if (nt_response->length > 24) {
-			/* If NTLMv2 authentication has preceeded us
-			 * (even if it failed), then use the session
-			 * key from that.  See the RPC-SAMLOGON
-			 * torture test */
-			smb_sess_key_ntlmv2(mem_ctx,
-					    nt_response, 
-					    stored_nt->hash, challenge, 
-					    client_username,
-					    client_domain,
-					    false,
-					    user_sess_key);
-		} else {
-			/* Otherwise, use the LMv2 session key */
-			*user_sess_key = tmp_sess_key;
-		}
-		*lm_sess_key = *user_sess_key;
-		if (user_sess_key->length) {
-			lm_sess_key->length = 8;
-		}
-		return NT_STATUS_OK;
-	}
-	
-	DEBUG(4,("ntlm_password_check: Checking LMv2 password with upper-cased version of domain %s\n", client_domain));
-	if (smb_pwd_check_ntlmv2(mem_ctx,
-				 lm_response, 
-				 stored_nt->hash, challenge, 
-				 client_username,
-				 client_domain,
-				 true,
-				 &tmp_sess_key)) {
-		if (nt_response->length > 24) {
-			/* If NTLMv2 authentication has preceeded us
-			 * (even if it failed), then use the session
-			 * key from that.  See the RPC-SAMLOGON
-			 * torture test */
-			smb_sess_key_ntlmv2(mem_ctx,
-					    nt_response, 
-					    stored_nt->hash, challenge, 
-					    client_username,
-					    client_domain,
-					    true,
-					    user_sess_key);
-		} else {
-			/* Otherwise, use the LMv2 session key */
-			*user_sess_key = tmp_sess_key;
-		}
-		*lm_sess_key = *user_sess_key;
-		if (user_sess_key->length) {
-			lm_sess_key->length = 8;
-		}
-		return NT_STATUS_OK;
-	}
-	
-	DEBUG(4,("ntlm_password_check: Checking LMv2 password without a domain\n"));
-	if (smb_pwd_check_ntlmv2(mem_ctx,
-				 lm_response, 
-				 stored_nt->hash, challenge, 
-				 client_username,
-				 "",
-				 false,
-				 &tmp_sess_key)) {
-		if (nt_response->length > 24) {
-			/* If NTLMv2 authentication has preceeded us
-			 * (even if it failed), then use the session
-			 * key from that.  See the RPC-SAMLOGON
-			 * torture test */
-			smb_sess_key_ntlmv2(mem_ctx,
-					    nt_response, 
-					    stored_nt->hash, challenge, 
-					    client_username,
-					    "",
-					    false,
-					    user_sess_key);
-		} else {
-			/* Otherwise, use the LMv2 session key */
-			*user_sess_key = tmp_sess_key;
-		}
-		*lm_sess_key = *user_sess_key;
-		if (user_sess_key->length) {
-			lm_sess_key->length = 8;
-		}
-		return NT_STATUS_OK;
-	}
-
-	/* Apparently NT accepts NT responses in the LM field
-	   - I think this is related to Win9X pass-though authentication
-	*/
-	DEBUG(4,("ntlm_password_check: Checking NT MD4 password in LM field\n"));
-	if (ntlm_auth) {
-		if (smb_pwd_check_ntlmv1(mem_ctx, 
-					 lm_response, 
-					 stored_nt->hash, challenge,
-					 NULL)) {
-			/* The session key for this response is still very odd.  
-			   It not very secure, so use it only if we otherwise 
-			   allow LM authentication */
-
-			if (lanman_auth && stored_lanman) {
-				uint8_t first_8_lm_hash[16];
-				memcpy(first_8_lm_hash, stored_lanman->hash, 8);
-				memset(first_8_lm_hash + 8, '\0', 8);
-				*user_sess_key = data_blob_talloc(mem_ctx, first_8_lm_hash, 16);
-				*lm_sess_key = data_blob_talloc(mem_ctx, stored_lanman->hash, 8);
-			}
-			return NT_STATUS_OK;
-		}
-		DEBUG(3,("ntlm_password_check: LM password, NT MD4 password in LM field and LMv2 failed for user %s\n",username));
-	} else {
-		DEBUG(3,("ntlm_password_check: LM password and LMv2 failed for user %s, and NT MD4 password in LM field not permitted\n",username));
-	}
-
-	/* Try and match error codes */
-	if (strchr_m(username, '@')) {
-		return NT_STATUS_NOT_FOUND;
-	}
-	return NT_STATUS_WRONG_PASSWORD;
-}
-