handle NLTMSSP, server side
Copyright (C) Andrew Tridgell 2001
- Copyright (C) Andrew Bartlett 2001-2003
- Copyright (C) Andrew Bartlett 2005 (Updated from gensec).
+ Copyright (C) Andrew Bartlett 2001-2010
+ Copyright (C) Stefan Metzmacher 2005
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
*/
#include "includes.h"
-#include "ntlmssp.h"
+#include "../libcli/auth/ntlmssp.h"
+#include "../libcli/auth/ntlmssp_private.h"
#include "../libcli/auth/libcli_auth.h"
#include "../librpc/gen_ndr/ndr_ntlmssp.h"
#include "../libcli/auth/ntlmssp_ndr.h"
+#include "../lib/crypto/md5.h"
+#include "../lib/crypto/arcfour.h"
+#include "../lib/crypto/hmacmd5.h"
static NTSTATUS ntlmssp_client_initial(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx, /* Unused at this time */
DATA_BLOB reply, DATA_BLOB *next_request);
-static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB in, DATA_BLOB *out);
static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx, /* Unused at this time */
const DATA_BLOB reply, DATA_BLOB *next_request);
-static NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply);
-
/**
* Callbacks for NTLMSSP - for both client and server operating modes
*
enum ntlmssp_role role;
enum ntlmssp_message_type ntlmssp_command;
NTSTATUS (*fn)(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx,
DATA_BLOB in, DATA_BLOB *out);
} ntlmssp_callbacks[] = {
{NTLMSSP_CLIENT, NTLMSSP_INITIAL, ntlmssp_client_initial},
};
-/**
- * Print out the NTLMSSP flags for debugging
- * @param neg_flags The flags from the packet
- */
-
-void debug_ntlmssp_flags(uint32 neg_flags)
-{
- DEBUG(3,("Got NTLMSSP neg_flags=0x%08x\n", neg_flags));
-
- if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_UNICODE\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_OEM)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM\n"));
- if (neg_flags & NTLMSSP_REQUEST_TARGET)
- DEBUGADD(4, (" NTLMSSP_REQUEST_TARGET\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_SIGN)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_SEAL)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_DATAGRAM)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DATAGRAM\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_NETWARE)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NETWARE\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_NTLM)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
- if (neg_flags & NTLMSSP_REQUEST_NON_NT_SESSION_KEY)
- DEBUGADD(4, (" NTLMSSP_REQUEST_NON_NT_SESSION_KEY\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_TARGET_INFO)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_TARGET_INFO\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_VERSION)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_VERSION\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_128)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
- if (neg_flags & NTLMSSP_NEGOTIATE_56)
- DEBUGADD(4, (" NTLMSSP_NEGOTIATE_56\n"));
-}
-
/**
* Default challenge generation code.
*
*
*/
NTSTATUS ntlmssp_set_hashes(struct ntlmssp_state *ntlmssp_state,
- const unsigned char lm_hash[16],
- const unsigned char nt_hash[16])
+ const uint8_t lm_hash[16],
+ const uint8_t nt_hash[16])
{
- ntlmssp_state->lm_hash = (unsigned char *)
+ ntlmssp_state->lm_hash = (uint8_t *)
TALLOC_MEMDUP(ntlmssp_state, lm_hash, 16);
- ntlmssp_state->nt_hash = (unsigned char *)
+ ntlmssp_state->nt_hash = (uint8_t *)
TALLOC_MEMDUP(ntlmssp_state, nt_hash, 16);
if (!ntlmssp_state->lm_hash || !ntlmssp_state->nt_hash) {
TALLOC_FREE(ntlmssp_state->lm_hash);
ntlmssp_state->lm_hash = NULL;
ntlmssp_state->nt_hash = NULL;
} else {
- unsigned char lm_hash[16];
- unsigned char nt_hash[16];
+ uint8_t lm_hash[16];
+ uint8_t nt_hash[16];
E_deshash(password, lm_hash);
E_md4hash(password, nt_hash);
* @param ntlmssp_state NTLMSSP state
* @param feature Bit flag specifying the requested feature
*/
-void ntlmssp_want_feature(struct ntlmssp_state *ntlmssp_state, uint32 feature)
+void ntlmssp_want_feature(struct ntlmssp_state *ntlmssp_state, uint32_t feature)
{
/* As per JRA's comment above */
if (feature & NTLMSSP_FEATURE_SESSION_KEY) {
NTSTATUS ntlmssp_update(struct ntlmssp_state *ntlmssp_state,
const DATA_BLOB input, DATA_BLOB *out)
{
- uint32 ntlmssp_command;
+ uint32_t ntlmssp_command;
int i;
if (ntlmssp_state->expected_state == NTLMSSP_DONE) {
for (i=0; ntlmssp_callbacks[i].fn; i++) {
if (ntlmssp_callbacks[i].role == ntlmssp_state->role
&& ntlmssp_callbacks[i].ntlmssp_command == ntlmssp_command) {
- return ntlmssp_callbacks[i].fn(ntlmssp_state, input, out);
+ return ntlmssp_callbacks[i].fn(ntlmssp_state, ntlmssp_state, input, out);
}
}
return NT_STATUS_INVALID_PARAMETER;
}
-/**
- * End an NTLMSSP state machine
- *
- * @param ntlmssp_state NTLMSSP State, free()ed by this function
- */
-
-void ntlmssp_end(struct ntlmssp_state **ntlmssp_state)
-{
- data_blob_free(&(*ntlmssp_state)->chal);
- data_blob_free(&(*ntlmssp_state)->lm_resp);
- data_blob_free(&(*ntlmssp_state)->nt_resp);
- TALLOC_FREE(*ntlmssp_state);
-
- *ntlmssp_state = NULL;
- return;
-}
-
-/**
- * Determine correct target name flags for reply, given server role
- * and negotiated flags
- *
- * @param ntlmssp_state NTLMSSP State
- * @param neg_flags The flags from the packet
- * @param chal_flags The flags to be set in the reply packet
- * @return The 'target name' string.
- */
-
-static const char *ntlmssp_target_name(struct ntlmssp_state *ntlmssp_state,
- uint32 neg_flags, uint32 *chal_flags)
-{
- if (neg_flags & NTLMSSP_REQUEST_TARGET) {
- *chal_flags |= NTLMSSP_NEGOTIATE_TARGET_INFO;
- *chal_flags |= NTLMSSP_REQUEST_TARGET;
- if (ntlmssp_state->server.is_standalone) {
- *chal_flags |= NTLMSSP_TARGET_TYPE_SERVER;
- return ntlmssp_state->server.netbios_name;
- } else {
- *chal_flags |= NTLMSSP_TARGET_TYPE_DOMAIN;
- return ntlmssp_state->server.netbios_domain;
- };
- } else {
- return "";
- }
-}
-
-static void ntlmssp_handle_neg_flags(struct ntlmssp_state *ntlmssp_state,
- uint32 neg_flags, bool allow_lm) {
- if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE) {
- ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_UNICODE;
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_OEM;
- ntlmssp_state->unicode = True;
- } else {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_UNICODE;
- ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_OEM;
- ntlmssp_state->unicode = False;
- }
-
- if ((neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) && allow_lm) {
- /* other end forcing us to use LM */
- ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_LM_KEY;
- ntlmssp_state->use_ntlmv2 = False;
- } else {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_NTLM2)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_NTLM2;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_128)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_128;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_56)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_56;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_KEY_EXCH;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_SIGN;
- }
-
- if (!(neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_SEAL;
- }
-
- /* Woop Woop - unknown flag for Windows compatibility...
- What does this really do ? JRA. */
- if (!(neg_flags & NTLMSSP_NEGOTIATE_VERSION)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_VERSION;
- }
-
- if ((neg_flags & NTLMSSP_REQUEST_TARGET)) {
- ntlmssp_state->neg_flags |= NTLMSSP_REQUEST_TARGET;
- }
-}
-
-/**
- * Next state function for the Negotiate packet
- *
- * @param ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB
- * @param request The reply, as an allocated DATA_BLOB, caller to free.
- * @return Errors or MORE_PROCESSING_REQUIRED if a reply is sent.
- */
-
-static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply)
-{
- DATA_BLOB struct_blob;
- uint32 neg_flags = 0;
- uint32 ntlmssp_command, chal_flags;
- uint8_t cryptkey[8];
- const char *target_name;
- struct NEGOTIATE_MESSAGE negotiate;
- struct CHALLENGE_MESSAGE challenge;
- NTSTATUS status;
-
- /* parse the NTLMSSP packet */
-#if 0
- file_save("ntlmssp_negotiate.dat", request.data, request.length);
-#endif
-
- if (request.length) {
- if ((request.length < 16) || !msrpc_parse(ntlmssp_state, &request, "Cdd",
- "NTLMSSP",
- &ntlmssp_command,
- &neg_flags)) {
- DEBUG(1, ("ntlmssp_server_negotiate: failed to parse NTLMSSP Negotiate of length %u\n",
- (unsigned int)request.length));
- dump_data(2, request.data, request.length);
- return NT_STATUS_INVALID_PARAMETER;
- }
- debug_ntlmssp_flags(neg_flags);
-
- if (DEBUGLEVEL >= 10) {
- if (NT_STATUS_IS_OK(ntlmssp_pull_NEGOTIATE_MESSAGE(&request,
- ntlmssp_state,
- NULL,
- &negotiate)))
- {
- NDR_PRINT_DEBUG(NEGOTIATE_MESSAGE, &negotiate);
- }
- }
- }
-
- ntlmssp_handle_neg_flags(ntlmssp_state, neg_flags, lp_lanman_auth());
-
- /* Ask our caller what challenge they would like in the packet */
- status = ntlmssp_state->get_challenge(ntlmssp_state, cryptkey);
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- /* Check if we may set the challenge */
- if (!ntlmssp_state->may_set_challenge(ntlmssp_state)) {
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_NTLM2;
- }
-
- /* The flags we send back are not just the negotiated flags,
- * they are also 'what is in this packet'. Therfore, we
- * operate on 'chal_flags' from here on
- */
-
- chal_flags = ntlmssp_state->neg_flags;
-
- /* get the right name to fill in as 'target' */
- target_name = ntlmssp_target_name(ntlmssp_state,
- neg_flags, &chal_flags);
- if (target_name == NULL)
- return NT_STATUS_INVALID_PARAMETER;
-
- ntlmssp_state->chal = data_blob_talloc(ntlmssp_state, cryptkey, 8);
- ntlmssp_state->internal_chal = data_blob_talloc(ntlmssp_state,
- cryptkey, 8);
-
- /* This creates the 'blob' of names that appears at the end of the packet */
- if (chal_flags & NTLMSSP_NEGOTIATE_TARGET_INFO)
- {
- msrpc_gen(ntlmssp_state, &struct_blob, "aaaaa",
- MsvAvNbDomainName, target_name,
- MsvAvNbComputerName, ntlmssp_state->server.netbios_name,
- MsvAvDnsDomainName, ntlmssp_state->server.dns_domain,
- MsvAvDnsComputerName, ntlmssp_state->server.dns_name,
- MsvAvEOL, "");
- } else {
- struct_blob = data_blob_null;
- }
-
- {
- /* Marshel the packet in the right format, be it unicode or ASCII */
- const char *gen_string;
- if (ntlmssp_state->unicode) {
- gen_string = "CdUdbddB";
- } else {
- gen_string = "CdAdbddB";
- }
-
- msrpc_gen(ntlmssp_state, reply, gen_string,
- "NTLMSSP",
- NTLMSSP_CHALLENGE,
- target_name,
- chal_flags,
- cryptkey, 8,
- 0, 0,
- struct_blob.data, struct_blob.length);
-
- if (DEBUGLEVEL >= 10) {
- if (NT_STATUS_IS_OK(ntlmssp_pull_CHALLENGE_MESSAGE(reply,
- ntlmssp_state,
- NULL,
- &challenge)))
- {
- NDR_PRINT_DEBUG(CHALLENGE_MESSAGE, &challenge);
- }
- }
- }
-
- data_blob_free(&struct_blob);
-
- ntlmssp_state->expected_state = NTLMSSP_AUTH;
-
- return NT_STATUS_MORE_PROCESSING_REQUIRED;
-}
-
-/**
- * Next state function for the Authenticate packet
- *
- * @param ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB
- * @param request The reply, as an allocated DATA_BLOB, caller to free.
- * @return Errors or NT_STATUS_OK.
- */
-
-static NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply)
-{
- DATA_BLOB encrypted_session_key = data_blob_null;
- DATA_BLOB user_session_key = data_blob_null;
- DATA_BLOB lm_session_key = data_blob_null;
- DATA_BLOB session_key = data_blob_null;
- uint32 ntlmssp_command, auth_flags;
- NTSTATUS nt_status = NT_STATUS_OK;
- struct AUTHENTICATE_MESSAGE authenticate;
-
- /* used by NTLM2 */
- bool doing_ntlm2 = False;
-
- uchar session_nonce[16];
- uchar session_nonce_hash[16];
-
- const char *parse_string;
-
- /* parse the NTLMSSP packet */
- *reply = data_blob_null;
-
-#if 0
- file_save("ntlmssp_auth.dat", request.data, request.length);
-#endif
-
- if (ntlmssp_state->unicode) {
- parse_string = "CdBBUUUBd";
- } else {
- parse_string = "CdBBAAABd";
- }
-
- data_blob_free(&ntlmssp_state->lm_resp);
- data_blob_free(&ntlmssp_state->nt_resp);
-
- ntlmssp_state->user = NULL;
- ntlmssp_state->domain = NULL;
-
- /* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(ntlmssp_state, &request, parse_string,
- "NTLMSSP",
- &ntlmssp_command,
- &ntlmssp_state->lm_resp,
- &ntlmssp_state->nt_resp,
- &ntlmssp_state->domain,
- &ntlmssp_state->user,
- &ntlmssp_state->client.netbios_name,
- &encrypted_session_key,
- &auth_flags)) {
- auth_flags = 0;
-
- /* Try again with a shorter string (Win9X truncates this packet) */
- if (ntlmssp_state->unicode) {
- parse_string = "CdBBUUU";
- } else {
- parse_string = "CdBBAAA";
- }
-
- /* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(ntlmssp_state, &request, parse_string,
- "NTLMSSP",
- &ntlmssp_command,
- &ntlmssp_state->lm_resp,
- &ntlmssp_state->nt_resp,
- &ntlmssp_state->domain,
- &ntlmssp_state->user,
- &ntlmssp_state->client.netbios_name)) {
- DEBUG(1, ("ntlmssp_server_auth: failed to parse NTLMSSP (tried both formats):\n"));
- dump_data(2, request.data, request.length);
-
- return NT_STATUS_INVALID_PARAMETER;
- }
- }
-
- if (auth_flags)
- ntlmssp_handle_neg_flags(ntlmssp_state, auth_flags, lp_lanman_auth());
-
- if (DEBUGLEVEL >= 10) {
- if (NT_STATUS_IS_OK(ntlmssp_pull_AUTHENTICATE_MESSAGE(&request,
- ntlmssp_state,
- NULL,
- &authenticate)))
- {
- NDR_PRINT_DEBUG(AUTHENTICATE_MESSAGE, &authenticate);
- }
- }
-
- DEBUG(3,("Got user=[%s] domain=[%s] workstation=[%s] len1=%lu len2=%lu\n",
- ntlmssp_state->user, ntlmssp_state->domain,
- ntlmssp_state->client.netbios_name,
- (unsigned long)ntlmssp_state->lm_resp.length,
- (unsigned long)ntlmssp_state->nt_resp.length));
-
-#if 0
- file_save("nthash1.dat", &ntlmssp_state->nt_resp.data, &ntlmssp_state->nt_resp.length);
- file_save("lmhash1.dat", &ntlmssp_state->lm_resp.data, &ntlmssp_state->lm_resp.length);
-#endif
-
- /* NTLM2 uses a 'challenge' that is made of up both the server challenge, and a
- client challenge
-
- However, the NTLM2 flag may still be set for the real NTLMv2 logins, be careful.
- */
- if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- if (ntlmssp_state->nt_resp.length == 24 && ntlmssp_state->lm_resp.length == 24) {
- struct MD5Context md5_session_nonce_ctx;
- SMB_ASSERT(ntlmssp_state->internal_chal.data && ntlmssp_state->internal_chal.length == 8);
-
- doing_ntlm2 = True;
-
- memcpy(session_nonce, ntlmssp_state->internal_chal.data, 8);
- memcpy(&session_nonce[8], ntlmssp_state->lm_resp.data, 8);
-
- MD5Init(&md5_session_nonce_ctx);
- MD5Update(&md5_session_nonce_ctx, session_nonce, 16);
- MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
-
- ntlmssp_state->chal = data_blob_talloc(
- ntlmssp_state, session_nonce_hash, 8);
-
- /* LM response is no longer useful */
- data_blob_free(&ntlmssp_state->lm_resp);
-
- /* We changed the effective challenge - set it */
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_state->set_challenge(ntlmssp_state, &ntlmssp_state->chal))) {
- data_blob_free(&encrypted_session_key);
- return nt_status;
- }
-
- /* LM Key is incompatible. */
- ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
- }
- }
-
- /*
- * Note we don't check here for NTLMv2 auth settings. If NTLMv2 auth
- * is required (by "ntlm auth = no" and "lm auth = no" being set in the
- * smb.conf file) and no NTLMv2 response was sent then the password check
- * will fail here. JRA.
- */
-
- /* Finally, actually ask if the password is OK */
-
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_state->check_password(ntlmssp_state,
- &user_session_key, &lm_session_key))) {
- data_blob_free(&encrypted_session_key);
- return nt_status;
- }
-
- dump_data_pw("NT session key:\n", user_session_key.data, user_session_key.length);
- dump_data_pw("LM first-8:\n", lm_session_key.data, lm_session_key.length);
-
- /* Handle the different session key derivation for NTLM2 */
- if (doing_ntlm2) {
- if (user_session_key.data && user_session_key.length == 16) {
- session_key = data_blob_talloc(ntlmssp_state,
- NULL, 16);
- hmac_md5(user_session_key.data, session_nonce,
- sizeof(session_nonce), session_key.data);
- DEBUG(10,("ntlmssp_server_auth: Created NTLM2 session key.\n"));
- dump_data_pw("NTLM2 session key:\n", session_key.data, session_key.length);
-
- } else {
- DEBUG(10,("ntlmssp_server_auth: Failed to create NTLM2 session key.\n"));
- session_key = data_blob_null;
- }
- } else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) {
- if (lm_session_key.data && lm_session_key.length >= 8) {
- if (ntlmssp_state->lm_resp.data && ntlmssp_state->lm_resp.length == 24) {
- session_key = data_blob_talloc(ntlmssp_state,
- NULL, 16);
- if (session_key.data == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
- SMBsesskeygen_lm_sess_key(lm_session_key.data, ntlmssp_state->lm_resp.data,
- session_key.data);
- DEBUG(10,("ntlmssp_server_auth: Created NTLM session key.\n"));
- } else {
- static const uint8 zeros[24] = {0, };
- session_key = data_blob_talloc(
- ntlmssp_state, NULL, 16);
- if (session_key.data == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
- SMBsesskeygen_lm_sess_key(
- lm_session_key.data, zeros,
- session_key.data);
- }
- dump_data_pw("LM session key:\n", session_key.data,
- session_key.length);
- } else {
- DEBUG(10,("ntlmssp_server_auth: Failed to create NTLM session key.\n"));
- session_key = data_blob_null;
- }
- } else if (user_session_key.data) {
- session_key = user_session_key;
- DEBUG(10,("ntlmssp_server_auth: Using unmodified nt session key.\n"));
- dump_data_pw("unmodified session key:\n", session_key.data, session_key.length);
- } else if (lm_session_key.data) {
- session_key = lm_session_key;
- DEBUG(10,("ntlmssp_server_auth: Using unmodified lm session key.\n"));
- dump_data_pw("unmodified session key:\n", session_key.data, session_key.length);
- } else {
- DEBUG(10,("ntlmssp_server_auth: Failed to create unmodified session key.\n"));
- session_key = data_blob_null;
- }
-
- /* With KEY_EXCH, the client supplies the proposed session key,
- but encrypts it with the long-term key */
- if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
- if (!encrypted_session_key.data || encrypted_session_key.length != 16) {
- data_blob_free(&encrypted_session_key);
- DEBUG(1, ("Client-supplied KEY_EXCH session key was of invalid length (%u)!\n",
- (unsigned int)encrypted_session_key.length));
- return NT_STATUS_INVALID_PARAMETER;
- } else if (!session_key.data || session_key.length != 16) {
- DEBUG(5, ("server session key is invalid (len == %u), cannot do KEY_EXCH!\n",
- (unsigned int)session_key.length));
- ntlmssp_state->session_key = session_key;
- } else {
- dump_data_pw("KEY_EXCH session key (enc):\n", encrypted_session_key.data, encrypted_session_key.length);
- arcfour_crypt_blob(encrypted_session_key.data,
- encrypted_session_key.length,
- &session_key);
- ntlmssp_state->session_key = data_blob_talloc(
- ntlmssp_state, encrypted_session_key.data,
- encrypted_session_key.length);
- dump_data_pw("KEY_EXCH session key:\n", encrypted_session_key.data,
- encrypted_session_key.length);
- }
- } else {
- ntlmssp_state->session_key = session_key;
- }
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- ntlmssp_state->session_key = data_blob_null;
- } else if (ntlmssp_state->session_key.length) {
- nt_status = ntlmssp_sign_init(ntlmssp_state);
- }
-
- data_blob_free(&encrypted_session_key);
-
- /* Only one authentication allowed per server state. */
- ntlmssp_state->expected_state = NTLMSSP_DONE;
-
- return nt_status;
-}
-
/**
* Create an NTLMSSP state machine
*
ntlmssp_state->expected_state = NTLMSSP_NEGOTIATE;
+ ntlmssp_state->allow_lm_key = lp_lanman_auth();
+
ntlmssp_state->neg_flags =
NTLMSSP_NEGOTIATE_128 |
NTLMSSP_NEGOTIATE_56 |
*/
static NTSTATUS ntlmssp_client_initial(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx, /* Unused at this time */
DATA_BLOB reply, DATA_BLOB *next_request)
{
- struct NEGOTIATE_MESSAGE negotiate;
-
if (ntlmssp_state->unicode) {
ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_UNICODE;
} else {
ntlmssp_state->client.netbios_name);
if (DEBUGLEVEL >= 10) {
- if (NT_STATUS_IS_OK(ntlmssp_pull_NEGOTIATE_MESSAGE(next_request,
- ntlmssp_state,
- NULL,
- &negotiate)))
- {
- NDR_PRINT_DEBUG(NEGOTIATE_MESSAGE, &negotiate);
+ struct NEGOTIATE_MESSAGE *negotiate = talloc(
+ talloc_tos(), struct NEGOTIATE_MESSAGE);
+ if (negotiate != NULL) {
+ NTSTATUS status;
+ status = ntlmssp_pull_NEGOTIATE_MESSAGE(
+ next_request, negotiate, negotiate);
+ if (NT_STATUS_IS_OK(status)) {
+ NDR_PRINT_DEBUG(NEGOTIATE_MESSAGE,
+ negotiate);
+ }
+ TALLOC_FREE(negotiate);
}
}
*/
static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx, /* Unused at this time */
const DATA_BLOB reply, DATA_BLOB *next_request)
{
- uint32 chal_flags, ntlmssp_command, unkn1, unkn2;
+ uint32_t chal_flags, ntlmssp_command, unkn1, unkn2;
DATA_BLOB server_domain_blob;
DATA_BLOB challenge_blob;
DATA_BLOB struct_blob = data_blob_null;
DATA_BLOB session_key = data_blob_null;
DATA_BLOB encrypted_session_key = data_blob_null;
NTSTATUS nt_status = NT_STATUS_OK;
- struct CHALLENGE_MESSAGE challenge;
- struct AUTHENTICATE_MESSAGE authenticate;
if (ntlmssp_state->use_ccache) {
struct wbcCredentialCacheParams params;
}
if (DEBUGLEVEL >= 10) {
- if (NT_STATUS_IS_OK(ntlmssp_pull_CHALLENGE_MESSAGE(&reply,
- ntlmssp_state,
- NULL,
- &challenge)))
- {
- NDR_PRINT_DEBUG(CHALLENGE_MESSAGE, &challenge);
+ struct CHALLENGE_MESSAGE *challenge = talloc(
+ talloc_tos(), struct CHALLENGE_MESSAGE);
+ if (challenge != NULL) {
+ NTSTATUS status;
+ challenge->NegotiateFlags = chal_flags;
+ status = ntlmssp_pull_CHALLENGE_MESSAGE(
+ &reply, challenge, challenge);
+ if (NT_STATUS_IS_OK(status)) {
+ NDR_PRINT_DEBUG(CHALLENGE_MESSAGE,
+ challenge);
+ }
+ TALLOC_FREE(challenge);
}
}
}
} else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
struct MD5Context md5_session_nonce_ctx;
- uchar session_nonce[16];
- uchar session_nonce_hash[16];
- uchar user_session_key[16];
+ uint8_t session_nonce[16];
+ uint8_t session_nonce_hash[16];
+ uint8_t user_session_key[16];
lm_response = data_blob_talloc(ntlmssp_state, NULL, 24);
generate_random_buffer(lm_response.data, 8);
the password-derived key */
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
/* Make up a new session key */
- uint8 client_session_key[16];
+ uint8_t client_session_key[16];
generate_random_buffer(client_session_key, sizeof(client_session_key));
/* Encrypt the new session key with the old one */
}
if (DEBUGLEVEL >= 10) {
- if (NT_STATUS_IS_OK(ntlmssp_pull_AUTHENTICATE_MESSAGE(next_request,
- ntlmssp_state,
- NULL,
- &authenticate)))
- {
- NDR_PRINT_DEBUG(AUTHENTICATE_MESSAGE, &authenticate);
+ struct AUTHENTICATE_MESSAGE *authenticate = talloc(
+ talloc_tos(), struct AUTHENTICATE_MESSAGE);
+ if (authenticate != NULL) {
+ NTSTATUS status;
+ authenticate->NegotiateFlags =
+ ntlmssp_state->neg_flags;
+ status = ntlmssp_pull_AUTHENTICATE_MESSAGE(
+ next_request, authenticate, authenticate);
+ if (NT_STATUS_IS_OK(status)) {
+ NDR_PRINT_DEBUG(AUTHENTICATE_MESSAGE,
+ authenticate);
+ }
+ TALLOC_FREE(authenticate);
}
}
git.samba.org / amitay / samba.git / blobdiff