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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "system/network.h"
+#include "lib/tsocket/tsocket.h"
#include "auth/ntlmssp/ntlmssp.h"
-#include "auth/ntlmssp/msrpc_parse.h"
-#include "lib/crypto/crypto.h"
-#include "pstring.h"
-#include "system/filesys.h"
-#include "libcli/auth/libcli_auth.h"
-#include "auth/credentials/credentials.h"
+#include "../librpc/gen_ndr/ndr_ntlmssp.h"
+#include "../libcli/auth/ntlmssp_ndr.h"
+#include "../libcli/auth/ntlmssp_private.h"
+#include "../libcli/auth/libcli_auth.h"
+#include "../lib/crypto/crypto.h"
#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_proto.h"
#include "auth/auth.h"
-
-/**
- * Set a username on an NTLMSSP context - ensures it is talloc()ed
- *
- */
-
-static NTSTATUS ntlmssp_set_username(struct gensec_ntlmssp_state *gensec_ntlmssp_state, const char *user)
-{
- if (!user) {
- /* it should be at least "" */
- DEBUG(1, ("NTLMSSP failed to set username - cannot accept NULL username\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
- gensec_ntlmssp_state->user = talloc_strdup(gensec_ntlmssp_state, user);
- if (!gensec_ntlmssp_state->user) {
- return NT_STATUS_NO_MEMORY;
- }
- return NT_STATUS_OK;
-}
-
-/**
- * Set a domain on an NTLMSSP context - ensures it is talloc()ed
- *
- */
-static NTSTATUS ntlmssp_set_domain(struct gensec_ntlmssp_state *gensec_ntlmssp_state, const char *domain)
-{
- gensec_ntlmssp_state->domain = talloc_strdup(gensec_ntlmssp_state, domain);
- if (!gensec_ntlmssp_state->domain) {
- return NT_STATUS_NO_MEMORY;
- }
- return NT_STATUS_OK;
-}
-
-/**
- * Set a workstation on an NTLMSSP context - ensures it is talloc()ed
- *
- */
-static NTSTATUS ntlmssp_set_workstation(struct gensec_ntlmssp_state *gensec_ntlmssp_state, const char *workstation)
-{
- gensec_ntlmssp_state->workstation = talloc_strdup(gensec_ntlmssp_state, workstation);
- if (!gensec_ntlmssp_state->workstation) {
- return NT_STATUS_NO_MEMORY;
- }
- return NT_STATUS_OK;
-}
-
-/**
- * Determine correct target name flags for reply, given server role
- * and negotiated flags
- *
- * @param gensec_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 gensec_ntlmssp_state *gensec_ntlmssp_state,
- uint32_t neg_flags, uint32_t *chal_flags)
-{
- if (neg_flags & NTLMSSP_REQUEST_TARGET) {
- *chal_flags |= NTLMSSP_CHAL_TARGET_INFO;
- *chal_flags |= NTLMSSP_REQUEST_TARGET;
- if (gensec_ntlmssp_state->server_role == ROLE_STANDALONE) {
- *chal_flags |= NTLMSSP_TARGET_TYPE_SERVER;
- return gensec_ntlmssp_state->server_name;
- } else {
- *chal_flags |= NTLMSSP_TARGET_TYPE_DOMAIN;
- return gensec_ntlmssp_state->get_domain();
- };
- } else {
- return "";
- }
-}
-
-/*
- Andrew, please remove these totally bogus calls when you get time
-*/
-static BOOL get_myfullname(char *my_name)
-{
- pstring hostname;
-
- *hostname = 0;
-
- /* get my host name */
- if (gethostname(hostname, sizeof(hostname)) == -1) {
- DEBUG(0,("gethostname failed\n"));
- return False;
- }
-
- /* Ensure null termination. */
- hostname[sizeof(hostname)-1] = '\0';
-
- if (my_name)
- fstrcpy(my_name, hostname);
- return True;
-}
-
-static BOOL get_mydomname(char *my_domname)
-{
- pstring hostname;
- char *p;
-
- /* arrgh! relies on full name in system */
-
- *hostname = 0;
- /* get my host name */
- if (gethostname(hostname, sizeof(hostname)) == -1) {
- DEBUG(0,("gethostname failed\n"));
- return False;
- }
-
- /* Ensure null termination. */
- hostname[sizeof(hostname)-1] = '\0';
-
- p = strchr_m(hostname, '.');
-
- if (!p)
- return False;
-
- p++;
-
- if (my_domname)
- fstrcpy(my_domname, p);
-
- return True;
-}
-
-
+#include "param/param.h"
/**
- * Next state function for the Negotiate packet
- *
+ * Next state function for the Negotiate packet (GENSEC wrapper)
+ *
* @param gensec_security GENSEC state
* @param out_mem_ctx Memory context for *out
* @param in The request, as a DATA_BLOB. reply.data must be NULL
* @param out The reply, as an allocated DATA_BLOB, caller to free.
- * @return Errors or MORE_PROCESSING_REQUIRED if (normal) a reply is required.
- */
-
-NTSTATUS ntlmssp_server_negotiate(struct gensec_security *gensec_security,
- TALLOC_CTX *out_mem_ctx,
- const DATA_BLOB in, DATA_BLOB *out)
-{
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
- DATA_BLOB struct_blob;
- fstring dnsname, dnsdomname;
- uint32_t neg_flags = 0;
- uint32_t ntlmssp_command, chal_flags;
- const uint8_t *cryptkey;
- const char *target_name;
-
- /* parse the NTLMSSP packet */
-#if 0
- file_save("ntlmssp_negotiate.dat", request.data, request.length);
-#endif
-
- if (in.length) {
- if ((in.length < 16) || !msrpc_parse(out_mem_ctx, &in, "Cdd",
- "NTLMSSP",
- &ntlmssp_command,
- &neg_flags)) {
- DEBUG(1, ("ntlmssp_server_negotiate: failed to parse "
- "NTLMSSP Negotiate of length %u:\n",
- (unsigned int)in.length ));
- dump_data(2, in.data, in.length);
- return NT_STATUS_INVALID_PARAMETER;
- }
- debug_ntlmssp_flags(neg_flags);
- }
-
- ntlmssp_handle_neg_flags(gensec_ntlmssp_state, neg_flags, gensec_ntlmssp_state->allow_lm_key);
-
- /* Ask our caller what challenge they would like in the packet */
- cryptkey = gensec_ntlmssp_state->get_challenge(gensec_ntlmssp_state);
-
- /* Check if we may set the challenge */
- if (!gensec_ntlmssp_state->may_set_challenge(gensec_ntlmssp_state)) {
- gensec_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 = gensec_ntlmssp_state->neg_flags;
-
- /* get the right name to fill in as 'target' */
- target_name = ntlmssp_target_name(gensec_ntlmssp_state,
- neg_flags, &chal_flags);
- if (target_name == NULL)
- return NT_STATUS_INVALID_PARAMETER;
-
- gensec_ntlmssp_state->chal = data_blob_talloc(gensec_ntlmssp_state, cryptkey, 8);
- gensec_ntlmssp_state->internal_chal = data_blob_talloc(gensec_ntlmssp_state, cryptkey, 8);
-
- /* This should be a 'netbios domain -> DNS domain' mapping */
- dnsdomname[0] = '\0';
- get_mydomname(dnsdomname);
- strlower_m(dnsdomname);
-
- dnsname[0] = '\0';
- get_myfullname(dnsname);
-
- /* This creates the 'blob' of names that appears at the end of the packet */
- if (chal_flags & NTLMSSP_CHAL_TARGET_INFO)
- {
- const char *target_name_dns = "";
- if (chal_flags |= NTLMSSP_TARGET_TYPE_DOMAIN) {
- target_name_dns = dnsdomname;
- } else if (chal_flags |= NTLMSSP_TARGET_TYPE_SERVER) {
- target_name_dns = dnsname;
- }
-
- msrpc_gen(out_mem_ctx,
- &struct_blob, "aaaaa",
- NTLMSSP_NAME_TYPE_DOMAIN, target_name,
- NTLMSSP_NAME_TYPE_SERVER, gensec_ntlmssp_state->server_name,
- NTLMSSP_NAME_TYPE_DOMAIN_DNS, dnsdomname,
- NTLMSSP_NAME_TYPE_SERVER_DNS, dnsname,
- 0, "");
- } else {
- struct_blob = data_blob(NULL, 0);
- }
-
- {
- /* Marshel the packet in the right format, be it unicode or ASCII */
- const char *gen_string;
- if (gensec_ntlmssp_state->unicode) {
- gen_string = "CdUdbddB";
- } else {
- gen_string = "CdAdbddB";
- }
-
- msrpc_gen(out_mem_ctx,
- out, gen_string,
- "NTLMSSP",
- NTLMSSP_CHALLENGE,
- target_name,
- chal_flags,
- cryptkey, 8,
- 0, 0,
- struct_blob.data, struct_blob.length);
- }
-
- gensec_ntlmssp_state->expected_state = NTLMSSP_AUTH;
-
- return NT_STATUS_MORE_PROCESSING_REQUIRED;
-}
-
-/**
- * Next state function for the Authenticate packet
- *
- * @param gensec_ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB
- * @return Errors or NT_STATUS_OK.
- */
-
-static NTSTATUS ntlmssp_server_preauth(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
- const DATA_BLOB request)
-{
- uint32_t ntlmssp_command, auth_flags;
- NTSTATUS nt_status;
-
- uint8_t session_nonce_hash[16];
-
- const char *parse_string;
- char *domain = NULL;
- char *user = NULL;
- char *workstation = NULL;
-
-#if 0
- file_save("ntlmssp_auth.dat", request.data, request.length);
-#endif
-
- if (gensec_ntlmssp_state->unicode) {
- parse_string = "CdBBUUUBd";
- } else {
- parse_string = "CdBBAAABd";
- }
-
- /* zero these out */
- data_blob_free(&gensec_ntlmssp_state->lm_resp);
- data_blob_free(&gensec_ntlmssp_state->nt_resp);
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
-
- gensec_ntlmssp_state->user = NULL;
- gensec_ntlmssp_state->domain = NULL;
- gensec_ntlmssp_state->workstation = NULL;
-
- /* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(gensec_ntlmssp_state,
- &request, parse_string,
- "NTLMSSP",
- &ntlmssp_command,
- &gensec_ntlmssp_state->lm_resp,
- &gensec_ntlmssp_state->nt_resp,
- &domain,
- &user,
- &workstation,
- &gensec_ntlmssp_state->encrypted_session_key,
- &auth_flags)) {
- DEBUG(10, ("ntlmssp_server_auth: failed to parse NTLMSSP (nonfatal):\n"));
- dump_data(10, request.data, request.length);
-
- /* zero this out */
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
- auth_flags = 0;
-
- /* Try again with a shorter string (Win9X truncates this packet) */
- if (gensec_ntlmssp_state->unicode) {
- parse_string = "CdBBUUU";
- } else {
- parse_string = "CdBBAAA";
- }
-
- /* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(gensec_ntlmssp_state,
- &request, parse_string,
- "NTLMSSP",
- &ntlmssp_command,
- &gensec_ntlmssp_state->lm_resp,
- &gensec_ntlmssp_state->nt_resp,
- &domain,
- &user,
- &workstation)) {
- DEBUG(1, ("ntlmssp_server_auth: failed to parse NTLMSSP:\n"));
- dump_data(2, request.data, request.length);
-
- return NT_STATUS_INVALID_PARAMETER;
- }
- }
-
- if (auth_flags)
- ntlmssp_handle_neg_flags(gensec_ntlmssp_state, auth_flags, gensec_ntlmssp_state->allow_lm_key);
-
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_domain(gensec_ntlmssp_state, domain))) {
- /* zero this out */
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
- return nt_status;
- }
-
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_username(gensec_ntlmssp_state, user))) {
- /* zero this out */
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
- return nt_status;
- }
-
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_workstation(gensec_ntlmssp_state, workstation))) {
- /* zero this out */
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
- return nt_status;
- }
-
- DEBUG(3,("Got user=[%s] domain=[%s] workstation=[%s] len1=%lu len2=%lu\n",
- gensec_ntlmssp_state->user, gensec_ntlmssp_state->domain, gensec_ntlmssp_state->workstation, (unsigned long)gensec_ntlmssp_state->lm_resp.length, (unsigned long)gensec_ntlmssp_state->nt_resp.length));
-
-#if 0
- file_save("nthash1.dat", &gensec_ntlmssp_state->nt_resp.data, &gensec_ntlmssp_state->nt_resp.length);
- file_save("lmhash1.dat", &gensec_ntlmssp_state->lm_resp.data, &gensec_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 (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- if (gensec_ntlmssp_state->nt_resp.length == 24 && gensec_ntlmssp_state->lm_resp.length == 24) {
- struct MD5Context md5_session_nonce_ctx;
- SMB_ASSERT(gensec_ntlmssp_state->internal_chal.data
- && gensec_ntlmssp_state->internal_chal.length == 8);
-
- gensec_ntlmssp_state->doing_ntlm2 = True;
-
- memcpy(gensec_ntlmssp_state->crypt.ntlm2.session_nonce, gensec_ntlmssp_state->internal_chal.data, 8);
- memcpy(&gensec_ntlmssp_state->crypt.ntlm2.session_nonce[8], gensec_ntlmssp_state->lm_resp.data, 8);
-
- MD5Init(&md5_session_nonce_ctx);
- MD5Update(&md5_session_nonce_ctx, gensec_ntlmssp_state->crypt.ntlm2.session_nonce, 16);
- MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
-
- gensec_ntlmssp_state->chal = data_blob_talloc(gensec_ntlmssp_state,
- session_nonce_hash, 8);
-
- /* LM response is no longer useful, zero it out */
- data_blob_free(&gensec_ntlmssp_state->lm_resp);
-
- /* We changed the effective challenge - set it */
- if (!NT_STATUS_IS_OK(nt_status =
- gensec_ntlmssp_state->set_challenge(gensec_ntlmssp_state,
- &gensec_ntlmssp_state->chal))) {
- /* zero this out */
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
- return nt_status;
- }
-
- /* LM Key is incompatible... */
- gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
- }
- }
- return NT_STATUS_OK;
-}
-
-/**
- * Next state function for the Authenticate packet
- * (after authentication - figures out the session keys etc)
- *
- * @param gensec_ntlmssp_state NTLMSSP State
- * @return Errors or NT_STATUS_OK.
+ * @return Errors or MORE_PROCESSING_REQUIRED if (normal) a reply is required.
*/
-static NTSTATUS ntlmssp_server_postauth(struct gensec_security *gensec_security,
- DATA_BLOB *user_session_key,
- DATA_BLOB *lm_session_key)
+NTSTATUS gensec_ntlmssp_server_negotiate(struct gensec_security *gensec_security,
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB request, DATA_BLOB *reply)
{
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
- NTSTATUS nt_status;
- DATA_BLOB session_key = data_blob(NULL, 0);
-
- if (user_session_key)
- dump_data_pw("USER session key:\n", user_session_key->data, user_session_key->length);
-
- if (lm_session_key)
- dump_data_pw("LM first-8:\n", lm_session_key->data, lm_session_key->length);
-
- /* Handle the different session key derivation for NTLM2 */
- if (gensec_ntlmssp_state->doing_ntlm2) {
- if (user_session_key && user_session_key->data && user_session_key->length == 16) {
- session_key = data_blob_talloc(gensec_ntlmssp_state, NULL, 16);
- hmac_md5(user_session_key->data, gensec_ntlmssp_state->crypt.ntlm2.session_nonce,
- sizeof(gensec_ntlmssp_state->crypt.ntlm2.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, 0);
- }
- } else if ((gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
- /* Ensure we can never get here on NTLMv2 */
- && (gensec_ntlmssp_state->nt_resp.length == 0 || gensec_ntlmssp_state->nt_resp.length == 24)) {
-
- if (lm_session_key && lm_session_key->data && lm_session_key->length >= 8) {
- if (gensec_ntlmssp_state->lm_resp.data && gensec_ntlmssp_state->lm_resp.length == 24) {
- session_key = data_blob_talloc(gensec_ntlmssp_state, NULL, 16);
- SMBsesskeygen_lm_sess_key(lm_session_key->data, gensec_ntlmssp_state->lm_resp.data,
- session_key.data);
- DEBUG(10,("ntlmssp_server_auth: Created NTLM session key.\n"));
- dump_data_pw("LM session key:\n", session_key.data, session_key.length);
- } else {
-
- /* When there is no LM response, just use zeros */
- static const uint8_t zeros[24];
- session_key = data_blob_talloc(gensec_ntlmssp_state, NULL, 16);
- SMBsesskeygen_lm_sess_key(zeros, zeros,
- session_key.data);
- DEBUG(10,("ntlmssp_server_auth: Created NTLM session key.\n"));
- dump_data_pw("LM session key:\n", session_key.data, session_key.length);
- }
- } else {
- /* LM Key not selected */
- gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
-
- DEBUG(10,("ntlmssp_server_auth: Failed to create NTLM session key.\n"));
- session_key = data_blob(NULL, 0);
- }
-
- } else if (user_session_key && 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);
-
- /* LM Key not selected */
- gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
-
- } else if (lm_session_key && lm_session_key->data) {
- /* Very weird to have LM key, but no user session key, but anyway.. */
- 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);
-
- /* LM Key not selected */
- gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
-
- } else {
- DEBUG(10,("ntlmssp_server_auth: Failed to create unmodified session key.\n"));
- session_key = data_blob(NULL, 0);
-
- /* LM Key not selected */
- gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
- }
-
- /* With KEY_EXCH, the client supplies the proposed session key,
- but encrypts it with the long-term key */
- if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
- if (!gensec_ntlmssp_state->encrypted_session_key.data
- || gensec_ntlmssp_state->encrypted_session_key.length != 16) {
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
- DEBUG(1, ("Client-supplied KEY_EXCH session key was of invalid length (%u)!\n",
- (unsigned)gensec_ntlmssp_state->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)session_key.length));
- gensec_ntlmssp_state->session_key = session_key;
- } else {
- dump_data_pw("KEY_EXCH session key (enc):\n",
- gensec_ntlmssp_state->encrypted_session_key.data,
- gensec_ntlmssp_state->encrypted_session_key.length);
- arcfour_crypt(gensec_ntlmssp_state->encrypted_session_key.data,
- session_key.data,
- gensec_ntlmssp_state->encrypted_session_key.length);
- gensec_ntlmssp_state->session_key = data_blob_talloc(gensec_ntlmssp_state,
- gensec_ntlmssp_state->encrypted_session_key.data,
- gensec_ntlmssp_state->encrypted_session_key.length);
- dump_data_pw("KEY_EXCH session key:\n", gensec_ntlmssp_state->encrypted_session_key.data,
- gensec_ntlmssp_state->encrypted_session_key.length);
- }
- } else {
- gensec_ntlmssp_state->session_key = session_key;
- }
-
- /* keep the session key around on the new context */
- talloc_steal(gensec_ntlmssp_state, session_key.data);
-
- if ((gensec_security->want_features & GENSEC_FEATURE_SIGN)
- || (gensec_security->want_features & GENSEC_FEATURE_SEAL)) {
- nt_status = ntlmssp_sign_init(gensec_ntlmssp_state);
- } else {
- nt_status = NT_STATUS_OK;
- }
-
- data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
-
- /* allow arbitarily many authentications, but watch that this will cause a
- memory leak, until the gensec_ntlmssp_state is shutdown
- */
-
- if (gensec_ntlmssp_state->server_multiple_authentications) {
- gensec_ntlmssp_state->expected_state = NTLMSSP_AUTH;
- } else {
- gensec_ntlmssp_state->expected_state = NTLMSSP_DONE;
- }
-
- return nt_status;
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+ struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
+ return ntlmssp_server_negotiate(ntlmssp_state, out_mem_ctx, request, reply);
}
-
/**
- * Next state function for the Authenticate packet
- *
+ * Next state function for the Authenticate packet (GENSEC wrapper)
+ *
* @param gensec_security GENSEC state
* @param out_mem_ctx Memory context for *out
* @param in The request, as a DATA_BLOB. reply.data must be NULL
* @return Errors or NT_STATUS_OK if authentication sucessful
*/
-NTSTATUS ntlmssp_server_auth(struct gensec_security *gensec_security,
- TALLOC_CTX *out_mem_ctx,
- const DATA_BLOB in, DATA_BLOB *out)
-{
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
- DATA_BLOB user_session_key = data_blob(NULL, 0);
- DATA_BLOB lm_session_key = data_blob(NULL, 0);
- NTSTATUS nt_status;
-
- TALLOC_CTX *mem_ctx = talloc_new(out_mem_ctx);
- if (!mem_ctx) {
- return NT_STATUS_NO_MEMORY;
- }
-
- /* zero the outbound NTLMSSP packet */
- *out = data_blob_talloc(out_mem_ctx, NULL, 0);
-
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_server_preauth(gensec_ntlmssp_state, in))) {
- talloc_free(mem_ctx);
- return nt_status;
- }
-
- /*
- * 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 = gensec_ntlmssp_state->check_password(gensec_ntlmssp_state, mem_ctx,
- &user_session_key, &lm_session_key))) {
- talloc_free(mem_ctx);
- return nt_status;
- }
-
- if (gensec_security->want_features
- & (GENSEC_FEATURE_SIGN|GENSEC_FEATURE_SEAL|GENSEC_FEATURE_SESSION_KEY)) {
- nt_status = ntlmssp_server_postauth(gensec_security, &user_session_key, &lm_session_key);
- talloc_free(mem_ctx);
- return nt_status;
- } else {
- gensec_ntlmssp_state->session_key = data_blob(NULL, 0);
- talloc_free(mem_ctx);
- return NT_STATUS_OK;
- }
+NTSTATUS gensec_ntlmssp_server_auth(struct gensec_security *gensec_security,
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out)
+{
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+ struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
+ return ntlmssp_server_auth(ntlmssp_state, out_mem_ctx, in, out);
}
/**
* @return an 8 byte random challenge
*/
-static const uint8_t *auth_ntlmssp_get_challenge(const struct gensec_ntlmssp_state *gensec_ntlmssp_state)
+static NTSTATUS auth_ntlmssp_get_challenge(const struct ntlmssp_state *ntlmssp_state,
+ uint8_t chal[8])
{
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(ntlmssp_state->callback_private,
+ struct gensec_ntlmssp_context);
+ struct auth4_context *auth_context = gensec_ntlmssp->gensec_security->auth_context;
NTSTATUS status;
- const uint8_t *chal;
- status = auth_get_challenge(gensec_ntlmssp_state->auth_context, &chal);
+ status = auth_context->get_challenge(auth_context, chal);
if (!NT_STATUS_IS_OK(status)) {
- return NULL;
+ DEBUG(1, ("auth_ntlmssp_get_challenge: failed to get challenge: %s\n",
+ nt_errstr(status)));
+ return status;
}
- return chal;
+ return NT_STATUS_OK;
}
/**
*
* @return If the effective challenge used by the auth subsystem may be modified
*/
-static BOOL auth_ntlmssp_may_set_challenge(const struct gensec_ntlmssp_state *gensec_ntlmssp_state)
+static bool auth_ntlmssp_may_set_challenge(const struct ntlmssp_state *ntlmssp_state)
{
- return auth_challenge_may_be_modified(gensec_ntlmssp_state->auth_context);
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(ntlmssp_state->callback_private,
+ struct gensec_ntlmssp_context);
+ struct auth4_context *auth_context = gensec_ntlmssp->gensec_security->auth_context;
+
+ return auth_context->challenge_may_be_modified(auth_context);
}
/**
* NTLM2 authentication modifies the effective challenge,
* @param challenge The new challenge value
*/
-static NTSTATUS auth_ntlmssp_set_challenge(struct gensec_ntlmssp_state *gensec_ntlmssp_state, DATA_BLOB *challenge)
+static NTSTATUS auth_ntlmssp_set_challenge(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge)
{
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(ntlmssp_state->callback_private,
+ struct gensec_ntlmssp_context);
+ struct auth4_context *auth_context = gensec_ntlmssp->gensec_security->auth_context;
NTSTATUS nt_status;
- struct auth_context *auth_context = gensec_ntlmssp_state->auth_context;
const uint8_t *chal;
if (challenge->length != 8) {
chal = challenge->data;
- nt_status = auth_context_set_challenge(auth_context, chal, "NTLMSSP callback (NTLM2)");
+ nt_status = auth_context->set_challenge(auth_context,
+ chal,
+ "NTLMSSP callback (NTLM2)");
return nt_status;
}
* Return the session keys used on the connection.
*/
-static NTSTATUS auth_ntlmssp_check_password(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
+static NTSTATUS auth_ntlmssp_check_password(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
{
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(ntlmssp_state->callback_private,
+ struct gensec_ntlmssp_context);
+ struct auth4_context *auth_context = gensec_ntlmssp->gensec_security->auth_context;
NTSTATUS nt_status;
- struct auth_usersupplied_info *user_info = talloc(mem_ctx, struct auth_usersupplied_info);
+ struct auth_usersupplied_info *user_info;
+
+ user_info = talloc_zero(ntlmssp_state, struct auth_usersupplied_info);
if (!user_info) {
return NT_STATUS_NO_MEMORY;
}
user_info->logon_parameters = MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT;
user_info->flags = 0;
- user_info->mapped_state = False;
- user_info->client.account_name = gensec_ntlmssp_state->user;
- user_info->client.domain_name = gensec_ntlmssp_state->domain;
- user_info->workstation_name = gensec_ntlmssp_state->workstation;
- user_info->remote_host = gensec_get_peer_addr(gensec_ntlmssp_state->gensec_security);
+ user_info->mapped_state = false;
+ user_info->client.account_name = ntlmssp_state->user;
+ user_info->client.domain_name = ntlmssp_state->domain;
+ user_info->workstation_name = ntlmssp_state->client.netbios_name;
+ user_info->remote_host = gensec_get_remote_address(gensec_ntlmssp->gensec_security);
user_info->password_state = AUTH_PASSWORD_RESPONSE;
- user_info->password.response.lanman = gensec_ntlmssp_state->lm_resp;
- user_info->password.response.lanman.data = talloc_steal(user_info, gensec_ntlmssp_state->lm_resp.data);
- user_info->password.response.nt = gensec_ntlmssp_state->nt_resp;
- user_info->password.response.nt.data = talloc_steal(user_info, gensec_ntlmssp_state->nt_resp.data);
-
- nt_status = auth_check_password(gensec_ntlmssp_state->auth_context, mem_ctx,
- user_info, &gensec_ntlmssp_state->server_info);
+ user_info->password.response.lanman = ntlmssp_state->lm_resp;
+ user_info->password.response.lanman.data = talloc_steal(user_info, ntlmssp_state->lm_resp.data);
+ user_info->password.response.nt = ntlmssp_state->nt_resp;
+ user_info->password.response.nt.data = talloc_steal(user_info, ntlmssp_state->nt_resp.data);
+
+ nt_status = auth_context->check_password(auth_context,
+ gensec_ntlmssp,
+ user_info,
+ &gensec_ntlmssp->user_info_dc);
talloc_free(user_info);
NT_STATUS_NOT_OK_RETURN(nt_status);
- talloc_steal(gensec_ntlmssp_state, gensec_ntlmssp_state->server_info);
-
- if (gensec_ntlmssp_state->server_info->user_session_key.length) {
- DEBUG(10, ("Got NT session key of length %u\n",
- (unsigned)gensec_ntlmssp_state->server_info->user_session_key.length));
- if (!talloc_reference(mem_ctx, gensec_ntlmssp_state->server_info->user_session_key.data)) {
- return NT_STATUS_NO_MEMORY;
- }
-
- *user_session_key = gensec_ntlmssp_state->server_info->user_session_key;
+ if (gensec_ntlmssp->user_info_dc->user_session_key.length) {
+ DEBUG(10, ("Got NT session key of length %u\n",
+ (unsigned)gensec_ntlmssp->user_info_dc->user_session_key.length));
+ *user_session_key = gensec_ntlmssp->user_info_dc->user_session_key;
+ talloc_steal(mem_ctx, user_session_key->data);
+ gensec_ntlmssp->user_info_dc->user_session_key = data_blob_null;
}
- if (gensec_ntlmssp_state->server_info->lm_session_key.length) {
- DEBUG(10, ("Got LM session key of length %u\n",
- (unsigned)gensec_ntlmssp_state->server_info->lm_session_key.length));
- if (!talloc_reference(mem_ctx, gensec_ntlmssp_state->server_info->lm_session_key.data)) {
- return NT_STATUS_NO_MEMORY;
- }
-
- *lm_session_key = gensec_ntlmssp_state->server_info->lm_session_key;
+ if (gensec_ntlmssp->user_info_dc->lm_session_key.length) {
+ DEBUG(10, ("Got LM session key of length %u\n",
+ (unsigned)gensec_ntlmssp->user_info_dc->lm_session_key.length));
+ *lm_session_key = gensec_ntlmssp->user_info_dc->lm_session_key;
+ talloc_steal(mem_ctx, lm_session_key->data);
+ gensec_ntlmssp->user_info_dc->lm_session_key = data_blob_null;
}
return nt_status;
}
*/
NTSTATUS gensec_ntlmssp_session_info(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
struct auth_session_info **session_info)
{
NTSTATUS nt_status;
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
-
- nt_status = auth_generate_session_info(gensec_ntlmssp_state, gensec_ntlmssp_state->server_info, session_info);
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+ struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
+
+ nt_status = gensec_generate_session_info(mem_ctx,
+ gensec_security,
+ gensec_ntlmssp->user_info_dc,
+ session_info);
NT_STATUS_NOT_OK_RETURN(nt_status);
- (*session_info)->session_key = data_blob_talloc(*session_info,
- gensec_ntlmssp_state->session_key.data,
- gensec_ntlmssp_state->session_key.length);
-
- return NT_STATUS_OK;
+ return gensec_ntlmssp_session_key(gensec_security, *session_info,
+ &(*session_info)->session_key);
}
/**
NTSTATUS gensec_ntlmssp_server_start(struct gensec_security *gensec_security)
{
NTSTATUS nt_status;
- struct gensec_ntlmssp_state *gensec_ntlmssp_state;
+ struct ntlmssp_state *ntlmssp_state;
+ struct gensec_ntlmssp_context *gensec_ntlmssp;
nt_status = gensec_ntlmssp_start(gensec_security);
NT_STATUS_NOT_OK_RETURN(nt_status);
- gensec_ntlmssp_state = gensec_security->private_data;
-
- gensec_ntlmssp_state->role = NTLMSSP_SERVER;
-
- gensec_ntlmssp_state->workstation = NULL;
- gensec_ntlmssp_state->server_name = lp_netbios_name();
+ gensec_ntlmssp = talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+ ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
- gensec_ntlmssp_state->get_domain = lp_workgroup;
+ ntlmssp_state->role = NTLMSSP_SERVER;
- gensec_ntlmssp_state->expected_state = NTLMSSP_NEGOTIATE;
+ ntlmssp_state->expected_state = NTLMSSP_NEGOTIATE;
- gensec_ntlmssp_state->allow_lm_key = (lp_lanman_auth()
- && lp_parm_bool(-1, "ntlmssp_server", "allow_lm_key", False));
+ ntlmssp_state->allow_lm_key = (lpcfg_lanman_auth(gensec_security->settings->lp_ctx)
+ && gensec_setting_bool(gensec_security->settings, "ntlmssp_server", "allow_lm_key", false));
- gensec_ntlmssp_state->server_multiple_authentications = False;
-
- gensec_ntlmssp_state->neg_flags =
- NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_UNKNOWN_02000000;
+ ntlmssp_state->neg_flags =
+ NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_VERSION;
- gensec_ntlmssp_state->lm_resp = data_blob(NULL, 0);
- gensec_ntlmssp_state->nt_resp = data_blob(NULL, 0);
- gensec_ntlmssp_state->encrypted_session_key = data_blob(NULL, 0);
+ ntlmssp_state->lm_resp = data_blob(NULL, 0);
+ ntlmssp_state->nt_resp = data_blob(NULL, 0);
- if (lp_parm_bool(-1, "ntlmssp_server", "128bit", True)) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_128;
+ if (gensec_setting_bool(gensec_security->settings, "ntlmssp_server", "128bit", true)) {
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_128;
}
- if (lp_parm_bool(-1, "ntlmssp_server", "56bit", True)) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_56;
+ if (gensec_setting_bool(gensec_security->settings, "ntlmssp_server", "56bit", true)) {
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_56;
}
- if (lp_parm_bool(-1, "ntlmssp_server", "keyexchange", True)) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_KEY_EXCH;
+ if (gensec_setting_bool(gensec_security->settings, "ntlmssp_server", "keyexchange", true)) {
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_KEY_EXCH;
}
- if (lp_parm_bool(-1, "ntlmssp_server", "alwayssign", True)) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
+ if (gensec_setting_bool(gensec_security->settings, "ntlmssp_server", "alwayssign", true)) {
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
}
- if (lp_parm_bool(-1, "ntlmssp_server", "ntlm2", True)) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_NTLM2;
+ if (gensec_setting_bool(gensec_security->settings, "ntlmssp_server", "ntlm2", true)) {
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_NTLM2;
}
if (gensec_security->want_features & GENSEC_FEATURE_SIGN) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
}
if (gensec_security->want_features & GENSEC_FEATURE_SEAL) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SEAL;
+ ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SEAL;
}
- nt_status = auth_context_create(gensec_ntlmssp_state,
- gensec_security->event_ctx,
- gensec_security->msg_ctx,
- &gensec_ntlmssp_state->auth_context);
- NT_STATUS_NOT_OK_RETURN(nt_status);
+ ntlmssp_state->get_challenge = auth_ntlmssp_get_challenge;
+ ntlmssp_state->may_set_challenge = auth_ntlmssp_may_set_challenge;
+ ntlmssp_state->set_challenge = auth_ntlmssp_set_challenge;
+ ntlmssp_state->check_password = auth_ntlmssp_check_password;
+ if (lpcfg_server_role(gensec_security->settings->lp_ctx) == ROLE_STANDALONE) {
+ ntlmssp_state->server.is_standalone = true;
+ } else {
+ ntlmssp_state->server.is_standalone = false;
+ }
- gensec_ntlmssp_state->get_challenge = auth_ntlmssp_get_challenge;
- gensec_ntlmssp_state->may_set_challenge = auth_ntlmssp_may_set_challenge;
- gensec_ntlmssp_state->set_challenge = auth_ntlmssp_set_challenge;
- gensec_ntlmssp_state->check_password = auth_ntlmssp_check_password;
- gensec_ntlmssp_state->server_role = lp_server_role();
+ ntlmssp_state->server.netbios_name = lpcfg_netbios_name(gensec_security->settings->lp_ctx);
+
+ ntlmssp_state->server.netbios_domain = lpcfg_workgroup(gensec_security->settings->lp_ctx);
+
+ {
+ const char *dnsdomain = lpcfg_dnsdomain(gensec_security->settings->lp_ctx);
+ char *dnsname, *lower_netbiosname;
+ lower_netbiosname = strlower_talloc(ntlmssp_state, ntlmssp_state->server.netbios_name);
+
+ /* Find out the DNS host name */
+ if (dnsdomain && dnsdomain[0] != '\0') {
+ dnsname = talloc_asprintf(ntlmssp_state, "%s.%s",
+ lower_netbiosname,
+ dnsdomain);
+ talloc_free(lower_netbiosname);
+ ntlmssp_state->server.dns_name = dnsname;
+ } else {
+ ntlmssp_state->server.dns_name = lower_netbiosname;
+ }
+
+ NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->server.dns_name);
+
+ ntlmssp_state->server.dns_domain
+ = talloc_strdup(ntlmssp_state,
+ lpcfg_dnsdomain(gensec_security->settings->lp_ctx));
+ NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->server.dns_domain);
+ }
return NT_STATUS_OK;
}
git.samba.org / idra / samba.git / blobdiff