-/*
+/*
Unix SMB/CIFS implementation.
SMB parameters and setup
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Jeremy Allison 1995-2000.
Copyright (C) Luke Kennethc Casson Leighton 1996-2000.
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
-
+
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 "../libcli/auth/msrpc_parse.h"
#include "../lib/crypto/crypto.h"
#include "../libcli/auth/libcli_auth.h"
+#include "../librpc/gen_ndr/ntlmssp.h"
void SMBencrypt_hash(const uint8_t lm_hash[16], const uint8_t *c8, uint8_t p24[24])
{
/*
This implements the X/Open SMB password encryption
- It takes a password ('unix' string), a 8 byte "crypt key"
- and puts 24 bytes of encrypted password into p24
+ It takes a password ('unix' string), a 8 byte "crypt key"
+ and puts 24 bytes of encrypted password into p24
Returns False if password must have been truncated to create LM hash
*/
bool ret;
uint8_t lm_hash[16];
- ret = E_deshash(passwd, lm_hash);
+ ret = E_deshash(passwd, lm_hash);
SMBencrypt_hash(lm_hash, c8, p24);
return ret;
}
* @param passwd password in 'unix' charset.
* @param p16 return password hashed with md4, caller allocated 16 byte buffer
*/
-
+
bool E_md4hash(const char *passwd, uint8_t p16[16])
{
size_t len;
mdfour(p16, (const uint8_t *)passwd, strlen(passwd));
return false;
}
-
+
len -= 2;
mdfour(p16, (const uint8_t *)wpwd, len);
void E_md5hash(const uint8_t salt[16], const uint8_t nthash[16], uint8_t hash_out[16])
{
struct MD5Context tctx;
- uint8_t array[32];
-
- memset(hash_out, '\0', 16);
- memcpy(array, salt, 16);
- memcpy(&array[16], nthash, 16);
MD5Init(&tctx);
- MD5Update(&tctx, array, 32);
+ MD5Update(&tctx, salt, 16);
+ MD5Update(&tctx, nthash, 16);
MD5Final(hash_out, &tctx);
}
* @return false if password was > 14 characters, and therefore may be incorrect, otherwise true
* @note p16 is filled in regardless
*/
-
+
bool E_deshash(const char *passwd, uint8_t p16[16])
{
bool ret = true;
ret = false;
}
- ZERO_STRUCT(dospwd);
+ ZERO_STRUCT(dospwd);
return ret;
}
/**
- * Creates the MD4 and DES (LM) Hash of the users password.
+ * Creates the MD4 and DES (LM) Hash of the users password.
* MD4 is of the NT Unicode, DES is of the DOS UPPERCASE password.
* @param passwd password in 'unix' charset.
* @param nt_p16 return password hashed with md4, caller allocated 16 byte buffer
* @param p16 return password hashed with des, caller allocated 16 byte buffer
*/
-
+
/* Does both the NT and LM owfs of a user's password */
void nt_lm_owf_gen(const char *pwd, uint8_t nt_p16[16], uint8_t p16[16])
{
#ifdef DEBUG_PASSWORD
DEBUG(100,("nt_lm_owf_gen: pwd, nt#\n"));
- dump_data(120, (uint8_t *)pwd, strlen(pwd));
+ dump_data(120, (const uint8_t *)pwd, strlen(pwd));
dump_data(100, nt_p16, 16);
#endif
#ifdef DEBUG_PASSWORD
DEBUG(100,("nt_lm_owf_gen: pwd, lm#\n"));
- dump_data(120, (uint8_t *)pwd, strlen(pwd));
+ dump_data(120, (const uint8_t *)pwd, strlen(pwd));
dump_data(100, p16, 16);
#endif
}
uint8_t kr_buf[16])
{
smb_ucs2_t *user;
- smb_ucs2_t *domain;
+ smb_ucs2_t *domain;
size_t user_byte_len;
size_t domain_byte_len;
bool ret;
HMACMD5Context ctx;
- TALLOC_CTX *mem_ctx = talloc_init("ntv2_owf_gen for %s\\%s", domain_in, user_in);
+ TALLOC_CTX *mem_ctx = talloc_init("ntv2_owf_gen for %s\\%s", domain_in, user_in);
if (!mem_ctx) {
return false;
/* We don't want null termination */
user_byte_len = user_byte_len - 2;
domain_byte_len = domain_byte_len - 2;
-
+
hmac_md5_init_limK_to_64(owf, 16, &ctx);
hmac_md5_update((uint8_t *)user, user_byte_len, &ctx);
hmac_md5_update((uint8_t *)domain, domain_byte_len, &ctx);
uint8_t p21[21];
ZERO_STRUCT(p21);
-
- memcpy(p21, passwd, 16);
+
+ memcpy(p21, passwd, 16);
E_P24(p21, c8, p24);
}
/* Does the des encryption. */
-
+
void SMBNTencrypt_hash(const uint8_t nt_hash[16], uint8_t *c8, uint8_t *p24)
{
uint8_t p21[21];
-
+
memset(p21,'\0',21);
memcpy(p21, nt_hash, 16);
SMBOWFencrypt(p21, c8, p24);
void SMBNTencrypt(const char *passwd, uint8_t *c8, uint8_t *p24)
{
uint8_t nt_hash[16];
- E_md4hash(passwd, nt_hash);
+ E_md4hash(passwd, nt_hash);
SMBNTencrypt_hash(nt_hash, c8, p24);
}
const uint8_t * nt_resp, uint8_t sess_key[16])
{
/* a very nice, 128 bit, variable session key */
-
+
HMACMD5Context ctx;
hmac_md5_init_limK_to_64(kr, 16, &ctx);
void SMBsesskeygen_ntv1(const uint8_t kr[16], uint8_t sess_key[16])
{
- /* yes, this session key does not change - yes, this
+ /* yes, this session key does not change - yes, this
is a problem - but it is 128 bits */
-
+
mdfour((uint8_t *)sess_key, kr, 16);
#ifdef DEBUG_PASSWORD
}
void SMBsesskeygen_lm_sess_key(const uint8_t lm_hash[16],
- const uint8_t lm_resp[24], /* only uses 8 */
+ const uint8_t lm_resp[24], /* only uses 8 */
uint8_t sess_key[16])
{
/* Calculate the LM session key (effective length 40 bits,
but changes with each session) */
uint8_t p24[24];
uint8_t partial_lm_hash[14];
-
- memcpy(partial_lm_hash, lm_hash, 8);
+
+ memcpy(partial_lm_hash, lm_hash, 8);
memset(partial_lm_hash + 8, 0xbd, 6);
des_crypt56(p24, lm_resp, partial_lm_hash, 1);
#endif
}
-DATA_BLOB NTLMv2_generate_names_blob(TALLOC_CTX *mem_ctx,
- const char *hostname,
+DATA_BLOB NTLMv2_generate_names_blob(TALLOC_CTX *mem_ctx,
+ const char *hostname,
const char *domain)
{
DATA_BLOB names_blob = data_blob_talloc(mem_ctx, NULL, 0);
-
- msrpc_gen(mem_ctx, &names_blob,
- "aaa",
- NTLMSSP_NAME_TYPE_DOMAIN, domain,
- NTLMSSP_NAME_TYPE_SERVER, hostname,
- 0, "");
+
+ msrpc_gen(mem_ctx, &names_blob,
+ "aaa",
+ MsvAvNbDomainName, domain,
+ MsvAvNbComputerName, hostname,
+ MsvAvEOL, "");
return names_blob;
}
-static DATA_BLOB NTLMv2_generate_client_data(TALLOC_CTX *mem_ctx, const DATA_BLOB *names_blob)
+static DATA_BLOB NTLMv2_generate_client_data(TALLOC_CTX *mem_ctx, const DATA_BLOB *names_blob)
{
uint8_t client_chal[8];
DATA_BLOB response = data_blob(NULL, 0);
/* See http://www.ubiqx.org/cifs/SMB.html#SMB.8.5 */
- msrpc_gen(mem_ctx, &response, "ddbbdb",
+ msrpc_gen(mem_ctx, &response, "ddbbdb",
0x00000101, /* Header */
0, /* 'Reserved' */
long_date, 8, /* Timestamp */
return response;
}
-static DATA_BLOB NTLMv2_generate_response(TALLOC_CTX *out_mem_ctx,
+static DATA_BLOB NTLMv2_generate_response(TALLOC_CTX *out_mem_ctx,
const uint8_t ntlm_v2_hash[16],
const DATA_BLOB *server_chal,
const DATA_BLOB *names_blob)
uint8_t ntlmv2_response[16];
DATA_BLOB ntlmv2_client_data;
DATA_BLOB final_response;
-
- TALLOC_CTX *mem_ctx = talloc_named(out_mem_ctx, 0,
+
+ TALLOC_CTX *mem_ctx = talloc_named(out_mem_ctx, 0,
"NTLMv2_generate_response internal context");
if (!mem_ctx) {
return data_blob(NULL, 0);
}
-
+
/* NTLMv2 */
/* generate some data to pass into the response function - including
the hostname and domain name of the server */
/* Given that data, and the challenge from the server, generate a response */
SMBOWFencrypt_ntv2(ntlm_v2_hash, server_chal, &ntlmv2_client_data, ntlmv2_response);
-
+
final_response = data_blob_talloc(out_mem_ctx, NULL, sizeof(ntlmv2_response) + ntlmv2_client_data.length);
memcpy(final_response.data, ntlmv2_response, sizeof(ntlmv2_response));
- memcpy(final_response.data+sizeof(ntlmv2_response),
+ memcpy(final_response.data+sizeof(ntlmv2_response),
ntlmv2_client_data.data, ntlmv2_client_data.length);
talloc_free(mem_ctx);
return final_response;
}
-static DATA_BLOB LMv2_generate_response(TALLOC_CTX *mem_ctx,
+static DATA_BLOB LMv2_generate_response(TALLOC_CTX *mem_ctx,
const uint8_t ntlm_v2_hash[16],
const DATA_BLOB *server_chal)
{
uint8_t lmv2_response[16];
DATA_BLOB lmv2_client_data = data_blob_talloc(mem_ctx, NULL, 8);
DATA_BLOB final_response = data_blob_talloc(mem_ctx, NULL,24);
-
+
/* LMv2 */
/* client-supplied random data */
- generate_random_buffer(lmv2_client_data.data, lmv2_client_data.length);
+ generate_random_buffer(lmv2_client_data.data, lmv2_client_data.length);
/* Given that data, and the challenge from the server, generate a response */
SMBOWFencrypt_ntv2(ntlm_v2_hash, server_chal, &lmv2_client_data, lmv2_response);
memcpy(final_response.data, lmv2_response, sizeof(lmv2_response));
- /* after the first 16 bytes is the random data we generated above,
+ /* after the first 16 bytes is the random data we generated above,
so the server can verify us with it */
- memcpy(final_response.data+sizeof(lmv2_response),
+ memcpy(final_response.data+sizeof(lmv2_response),
lmv2_client_data.data, lmv2_client_data.length);
data_blob_free(&lmv2_client_data);
return final_response;
}
-bool SMBNTLMv2encrypt_hash(TALLOC_CTX *mem_ctx,
+bool SMBNTLMv2encrypt_hash(TALLOC_CTX *mem_ctx,
const char *user, const char *domain, const uint8_t nt_hash[16],
- const DATA_BLOB *server_chal,
+ const DATA_BLOB *server_chal,
const DATA_BLOB *names_blob,
- DATA_BLOB *lm_response, DATA_BLOB *nt_response,
- DATA_BLOB *lm_session_key, DATA_BLOB *user_session_key)
+ DATA_BLOB *lm_response, DATA_BLOB *nt_response,
+ DATA_BLOB *lm_session_key, DATA_BLOB *user_session_key)
{
uint8_t ntlm_v2_hash[16];
if (!ntv2_owf_gen(nt_hash, user, domain, true, ntlm_v2_hash)) {
return false;
}
-
+
if (nt_response) {
- *nt_response = NTLMv2_generate_response(mem_ctx,
+ *nt_response = NTLMv2_generate_response(mem_ctx,
ntlm_v2_hash, server_chal,
- names_blob);
+ names_blob);
if (user_session_key) {
*user_session_key = data_blob_talloc(mem_ctx, NULL, 16);
-
+
/* The NTLMv2 calculations also provide a session key, for signing etc later */
/* use only the first 16 bytes of nt_response for session key */
SMBsesskeygen_ntv2(ntlm_v2_hash, nt_response->data, user_session_key->data);
}
}
-
+
/* LMv2 */
-
+
if (lm_response) {
- *lm_response = LMv2_generate_response(mem_ctx,
+ *lm_response = LMv2_generate_response(mem_ctx,
ntlm_v2_hash, server_chal);
if (lm_session_key) {
*lm_session_key = data_blob_talloc(mem_ctx, NULL, 16);
-
+
/* The NTLMv2 calculations also provide a session key, for signing etc later */
/* use only the first 16 bytes of lm_response for session key */
SMBsesskeygen_ntv2(ntlm_v2_hash, lm_response->data, lm_session_key->data);
}
}
-
+
return true;
}
-bool SMBNTLMv2encrypt(TALLOC_CTX *mem_ctx,
- const char *user, const char *domain,
- const char *password,
- const DATA_BLOB *server_chal,
+bool SMBNTLMv2encrypt(TALLOC_CTX *mem_ctx,
+ const char *user, const char *domain,
+ const char *password,
+ const DATA_BLOB *server_chal,
const DATA_BLOB *names_blob,
- DATA_BLOB *lm_response, DATA_BLOB *nt_response,
- DATA_BLOB *lm_session_key, DATA_BLOB *user_session_key)
+ DATA_BLOB *lm_response, DATA_BLOB *nt_response,
+ DATA_BLOB *lm_session_key, DATA_BLOB *user_session_key)
{
uint8_t nt_hash[16];
E_md4hash(password, nt_hash);
- return SMBNTLMv2encrypt_hash(mem_ctx,
+ return SMBNTLMv2encrypt_hash(mem_ctx,
user, domain, nt_hash, server_chal, names_blob,
lm_response, nt_response, lm_session_key, user_session_key);
}
string_flags |= STR_NOALIGN;
new_pw_len = push_string(new_pw,
- password,
+ password,
sizeof(new_pw), string_flags);
-
+
memcpy(&buffer[512 - new_pw_len], new_pw, new_pw_len);
generate_random_buffer(buffer, 512 - new_pw_len);
- /*
+ /*
* The length of the new password is in the last 4 bytes of
* the data buffer.
*/
}
/* decode into the return buffer. */
- if (!convert_string_talloc(ctx, string_charset, CH_UNIX,
+ if (!convert_string_talloc(ctx, string_charset, CH_UNIX,
&in_buffer[512 - byte_len],
byte_len,
(void *)pp_new_pwrd,
- new_pw_len,
- false)) {
+ new_pw_len)) {
DEBUG(0, ("decode_pw_buffer: failed to convert incoming password\n"));
return false;
}
generate_random_buffer(buffer, 512 - password->length);
- /*
+ /*
* The length of the new password is in the last 4 bytes of
* the data buffer.
*/
decode a password buffer
*new_pw_size is the length in bytes of the extracted unicode password
************************************************************/
-bool extract_pw_from_buffer(TALLOC_CTX *mem_ctx,
+bool extract_pw_from_buffer(TALLOC_CTX *mem_ctx,
uint8_t in_buffer[516], DATA_BLOB *new_pass)
{
int byte_len=0;
git.samba.org / samba.git / blobdiff