-/*
+/*
Unix SMB/CIFS implementation.
handle SMBsessionsetup
Copyright (C) Andrew Tridgell 1998-2001
Copyright (C) Andrew Bartlett 2001
Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
Copyright (C) Luke Howard 2003
+ Copyright (C) Volker Lendecke 2007
+ Copyright (C) Jeremy Allison 2007
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,
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, 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"
+extern struct auth_context *negprot_global_auth_context;
+extern bool global_encrypted_passwords_negotiated;
+extern bool global_spnego_negotiated;
+extern enum protocol_types Protocol;
+extern int max_send;
+
uint32 global_client_caps = 0;
/*
on a logon error possibly map the error to success if "map to guest"
is set approriately
*/
-static NTSTATUS do_map_to_guest(NTSTATUS status, auth_serversupplied_info **server_info,
+static NTSTATUS do_map_to_guest(NTSTATUS status,
+ auth_serversupplied_info **server_info,
const char *user, const char *domain)
{
if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
- if ((lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_USER) ||
+ if ((lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_USER) ||
(lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD)) {
DEBUG(3,("No such user %s [%s] - using guest account\n",
user, domain));
if (NT_STATUS_EQUAL(status, NT_STATUS_WRONG_PASSWORD)) {
if (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD) {
- DEBUG(3,("Registered username %s for guest access\n",user));
+ DEBUG(3,("Registered username %s for guest access\n",
+ user));
status = make_server_info_guest(server_info);
}
}
Add the standard 'Samba' signature to the end of the session setup.
****************************************************************************/
-static int add_signature(char *outbuf, char *p)
+static int push_signature(uint8 **outbuf)
{
- char *start = p;
- fstring lanman;
+ char *lanman;
+ int result, tmp;
+
+ result = 0;
+
+ tmp = message_push_string(outbuf, "Unix", STR_TERMINATE);
- fstr_sprintf( lanman, "Samba %s", SAMBA_VERSION_STRING);
+ if (tmp == -1) return -1;
+ result += tmp;
- p += srvstr_push(outbuf, p, "Unix", -1, STR_TERMINATE);
- p += srvstr_push(outbuf, p, lanman, -1, STR_TERMINATE);
- p += srvstr_push(outbuf, p, lp_workgroup(), -1, STR_TERMINATE);
+ if (asprintf(&lanman, "Samba %s", SAMBA_VERSION_STRING) != -1) {
+ tmp = message_push_string(outbuf, lanman, STR_TERMINATE);
+ SAFE_FREE(lanman);
+ }
+ else {
+ tmp = message_push_string(outbuf, "Samba", STR_TERMINATE);
+ }
+
+ if (tmp == -1) return -1;
+ result += tmp;
- return PTR_DIFF(p, start);
+ tmp = message_push_string(outbuf, lp_workgroup(), STR_TERMINATE);
+
+ if (tmp == -1) return -1;
+ result += tmp;
+
+ return result;
}
/****************************************************************************
- Send a security blob via a session setup reply.
+ Start the signing engine if needed. Don't fail signing here.
****************************************************************************/
-static BOOL reply_sesssetup_blob(connection_struct *conn, char *outbuf,
- DATA_BLOB blob, NTSTATUS nt_status)
+static void sessionsetup_start_signing_engine(
+ const auth_serversupplied_info *server_info,
+ const uint8 *inbuf)
{
- char *p;
-
- set_message(outbuf,4,0,True);
-
- nt_status = nt_status_squash(nt_status);
- SIVAL(outbuf, smb_rcls, NT_STATUS_V(nt_status));
- SSVAL(outbuf, smb_vwv0, 0xFF); /* no chaining possible */
- SSVAL(outbuf, smb_vwv3, blob.length);
- p = smb_buf(outbuf);
-
- /* should we cap this? */
- memcpy(p, blob.data, blob.length);
- p += blob.length;
+ if (!server_info->guest && !srv_signing_started()) {
+ /* We need to start the signing engine
+ * here but a W2K client sends the old
+ * "BSRSPYL " signature instead of the
+ * correct one. Subsequent packets will
+ * be correct.
+ */
+ srv_check_sign_mac((char *)inbuf, False);
+ }
+}
- p += add_signature( outbuf, p );
+/****************************************************************************
+ Send a security blob via a session setup reply.
+****************************************************************************/
- set_message_end(outbuf,p);
+static void reply_sesssetup_blob(struct smb_request *req,
+ DATA_BLOB blob,
+ NTSTATUS nt_status)
+{
+ if (!NT_STATUS_IS_OK(nt_status) &&
+ !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ reply_nterror(req, nt_status_squash(nt_status));
+ } else {
+ nt_status = nt_status_squash(nt_status);
+ SIVAL(req->outbuf, smb_rcls, NT_STATUS_V(nt_status));
+ SSVAL(req->outbuf, smb_vwv0, 0xFF); /* no chaining possible */
+ SSVAL(req->outbuf, smb_vwv3, blob.length);
+
+ if ((message_push_blob(&req->outbuf, blob) == -1)
+ || (push_signature(&req->outbuf) == -1)) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ }
+ }
- show_msg(outbuf);
- return send_smb(smbd_server_fd(),outbuf);
+ show_msg((char *)req->outbuf);
+ srv_send_smb(smbd_server_fd(),(char *)req->outbuf,req->encrypted);
+ TALLOC_FREE(req->outbuf);
}
/****************************************************************************
- Do a 'guest' logon, getting back the
+ Do a 'guest' logon, getting back the
****************************************************************************/
-static NTSTATUS check_guest_password(auth_serversupplied_info **server_info)
+static NTSTATUS check_guest_password(auth_serversupplied_info **server_info)
{
struct auth_context *auth_context;
auth_usersupplied_info *user_info = NULL;
-
+
NTSTATUS nt_status;
unsigned char chal[8];
DEBUG(3,("Got anonymous request\n"));
- if (!NT_STATUS_IS_OK(nt_status = make_auth_context_fixed(&auth_context, chal))) {
+ if (!NT_STATUS_IS_OK(nt_status = make_auth_context_fixed(&auth_context,
+ chal))) {
return nt_status;
}
(auth_context->free)(&auth_context);
return NT_STATUS_NO_MEMORY;
}
-
- nt_status = auth_context->check_ntlm_password(auth_context, user_info, server_info);
+
+ nt_status = auth_context->check_ntlm_password(auth_context,
+ user_info,
+ server_info);
(auth_context->free)(&auth_context);
free_user_info(&user_info);
return nt_status;
#ifdef HAVE_KRB5
+
+#if 0
+/* Experiment that failed. See "only happens with a KDC" comment below. */
/****************************************************************************
-reply to a session setup spnego negotiate packet for kerberos
+ Cerate a clock skew error blob for a Windows client.
****************************************************************************/
-static int reply_spnego_kerberos(connection_struct *conn,
- char *inbuf, char *outbuf,
- int length, int bufsize,
- DATA_BLOB *secblob)
+
+static bool make_krb5_skew_error(DATA_BLOB *pblob_out)
+{
+ krb5_context context = NULL;
+ krb5_error_code kerr = 0;
+ krb5_data reply;
+ krb5_principal host_princ = NULL;
+ char *host_princ_s = NULL;
+ bool ret = False;
+
+ *pblob_out = data_blob_null;
+
+ initialize_krb5_error_table();
+ kerr = krb5_init_context(&context);
+ if (kerr) {
+ return False;
+ }
+ /* Create server principal. */
+ asprintf(&host_princ_s, "%s$@%s", global_myname(), lp_realm());
+ if (!host_princ_s) {
+ goto out;
+ }
+ strlower_m(host_princ_s);
+
+ kerr = smb_krb5_parse_name(context, host_princ_s, &host_princ);
+ if (kerr) {
+ DEBUG(10,("make_krb5_skew_error: smb_krb5_parse_name failed "
+ "for name %s: Error %s\n",
+ host_princ_s, error_message(kerr) ));
+ goto out;
+ }
+
+ kerr = smb_krb5_mk_error(context, KRB5KRB_AP_ERR_SKEW,
+ host_princ, &reply);
+ if (kerr) {
+ DEBUG(10,("make_krb5_skew_error: smb_krb5_mk_error "
+ "failed: Error %s\n",
+ error_message(kerr) ));
+ goto out;
+ }
+
+ *pblob_out = data_blob(reply.data, reply.length);
+ kerberos_free_data_contents(context,&reply);
+ ret = True;
+
+ out:
+
+ if (host_princ_s) {
+ SAFE_FREE(host_princ_s);
+ }
+ if (host_princ) {
+ krb5_free_principal(context, host_princ);
+ }
+ krb5_free_context(context);
+ return ret;
+}
+#endif
+
+/****************************************************************************
+ Reply to a session setup spnego negotiate packet for kerberos.
+****************************************************************************/
+
+static void reply_spnego_kerberos(struct smb_request *req,
+ DATA_BLOB *secblob,
+ uint16 vuid,
+ bool *p_invalidate_vuid)
{
TALLOC_CTX *mem_ctx;
DATA_BLOB ticket;
fstring netbios_domain_name;
struct passwd *pw;
fstring user;
- int sess_vuid;
- NTSTATUS ret;
- PAC_DATA *pac_data;
+ int sess_vuid = req->vuid;
+ NTSTATUS ret = NT_STATUS_OK;
+ struct PAC_DATA *pac_data = NULL;
DATA_BLOB ap_rep, ap_rep_wrapped, response;
auth_serversupplied_info *server_info = NULL;
- DATA_BLOB session_key = data_blob(NULL, 0);
+ DATA_BLOB session_key = data_blob_null;
uint8 tok_id[2];
- DATA_BLOB nullblob = data_blob(NULL, 0);
+ DATA_BLOB nullblob = data_blob_null;
fstring real_username;
- BOOL map_domainuser_to_guest = False;
- PAC_LOGON_INFO *logon_info = NULL;
+ bool map_domainuser_to_guest = False;
+ bool username_was_mapped;
+ struct PAC_LOGON_INFO *logon_info = NULL;
ZERO_STRUCT(ticket);
- ZERO_STRUCT(pac_data);
ZERO_STRUCT(ap_rep);
ZERO_STRUCT(ap_rep_wrapped);
ZERO_STRUCT(response);
+ /* Normally we will always invalidate the intermediate vuid. */
+ *p_invalidate_vuid = True;
+
mem_ctx = talloc_init("reply_spnego_kerberos");
- if (mem_ctx == NULL)
- return ERROR_NT(NT_STATUS_NO_MEMORY);
+ if (mem_ctx == NULL) {
+ reply_nterror(req, nt_status_squash(NT_STATUS_NO_MEMORY));
+ return;
+ }
if (!spnego_parse_krb5_wrap(*secblob, &ticket, tok_id)) {
talloc_destroy(mem_ctx);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
+ return;
}
- ret = ads_verify_ticket(mem_ctx, lp_realm(), &ticket, &client, &pac_data, &ap_rep, &session_key);
+ ret = ads_verify_ticket(mem_ctx, lp_realm(), 0, &ticket,
+ &client, &pac_data, &ap_rep,
+ &session_key, True);
data_blob_free(&ticket);
if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(1,("Failed to verify incoming ticket!\n"));
+#if 0
+ /* Experiment that failed.
+ * See "only happens with a KDC" comment below. */
+
+ if (NT_STATUS_EQUAL(ret, NT_STATUS_TIME_DIFFERENCE_AT_DC)) {
+
+ /*
+ * Windows in this case returns
+ * NT_STATUS_MORE_PROCESSING_REQUIRED
+ * with a negTokenTarg blob containing an krb5_error
+ * struct ASN1 encoded containing KRB5KRB_AP_ERR_SKEW.
+ * The client then fixes its clock and continues rather
+ * than giving an error. JRA.
+ * -- Looks like this only happens with a KDC. JRA.
+ */
+
+ bool ok = make_krb5_skew_error(&ap_rep);
+ if (!ok) {
+ talloc_destroy(mem_ctx);
+ return ERROR_NT(nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ }
+ ap_rep_wrapped = spnego_gen_krb5_wrap(ap_rep,
+ TOK_ID_KRB_ERROR);
+ response = spnego_gen_auth_response(&ap_rep_wrapped,
+ ret, OID_KERBEROS5_OLD);
+ reply_sesssetup_blob(conn, inbuf, outbuf, response,
+ NT_STATUS_MORE_PROCESSING_REQUIRED);
+
+ /*
+ * In this one case we don't invalidate the
+ * intermediate vuid as we're expecting the client
+ * to re-use it for the next sessionsetupX packet. JRA.
+ */
+
+ *p_invalidate_vuid = False;
+
+ data_blob_free(&ap_rep);
+ data_blob_free(&ap_rep_wrapped);
+ data_blob_free(&response);
+ talloc_destroy(mem_ctx);
+ return -1; /* already replied */
+ }
+#else
+ if (!NT_STATUS_EQUAL(ret, NT_STATUS_TIME_DIFFERENCE_AT_DC)) {
+ ret = NT_STATUS_LOGON_FAILURE;
+ }
+#endif
+ DEBUG(1,("Failed to verify incoming ticket with error %s!\n",
+ nt_errstr(ret)));
talloc_destroy(mem_ctx);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ reply_nterror(req, nt_status_squash(ret));
+ return;
}
DEBUG(3,("Ticket name is [%s]\n", client));
data_blob_free(&session_key);
SAFE_FREE(client);
talloc_destroy(mem_ctx);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ reply_nterror(req,nt_status_squash(NT_STATUS_LOGON_FAILURE));
+ return;
}
*p = 0;
if (pac_data) {
logon_info = get_logon_info_from_pac(pac_data);
- netsamlogon_cache_store( client, &logon_info->info3 );
+ if (logon_info) {
+ netsamlogon_cache_store( client, &logon_info->info3 );
+ }
}
if (!strequal(p+1, lp_realm())) {
data_blob_free(&session_key);
SAFE_FREE(client);
talloc_destroy(mem_ctx);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ return;
}
}
domain = p+1;
- if (logon_info && logon_info->info3.hdr_logon_dom.uni_str_len) {
-
- unistr2_to_ascii(netbios_domain_name, &logon_info->info3.uni_logon_dom, -1);
+ if (logon_info && logon_info->info3.base.domain.string) {
+ fstrcpy(netbios_domain_name,
+ logon_info->info3.base.domain.string);
domain = netbios_domain_name;
DEBUG(10, ("Mapped to [%s] (using PAC)\n", domain));
name. And even w2k3 does use ntlmssp if you for example
connect to an ip address. */
- struct winbindd_request wb_request;
- struct winbindd_response wb_response;
- NSS_STATUS wb_result;
-
- ZERO_STRUCT(wb_request);
- ZERO_STRUCT(wb_response);
+ wbcErr wbc_status;
+ struct wbcDomainInfo *info = NULL;
DEBUG(10, ("Mapping [%s] to short name\n", domain));
- fstrcpy(wb_request.domain_name, domain);
-
- wb_result = winbindd_request_response(WINBINDD_DOMAIN_INFO,
- &wb_request, &wb_response);
+ wbc_status = wbcDomainInfo(domain, &info);
- if (wb_result == NSS_STATUS_SUCCESS) {
+ if (WBC_ERROR_IS_OK(wbc_status)) {
fstrcpy(netbios_domain_name,
- wb_response.data.domain_info.name);
- domain = netbios_domain_name;
+ info->short_name);
+ wbcFreeMemory(info);
+ domain = netbios_domain_name;
DEBUG(10, ("Mapped to [%s] (using Winbind)\n", domain));
} else {
- DEBUG(3, ("Could not find short name -- winbind "
- "not running?\n"));
+ DEBUG(3, ("Could not find short name: %s\n",
+ wbcErrorString(wbc_status)));
}
}
fstr_sprintf(user, "%s%c%s", domain, *lp_winbind_separator(), client);
-
+
/* lookup the passwd struct, create a new user if necessary */
- map_username( user );
+ username_was_mapped = map_username( user );
+
+ pw = smb_getpwnam( mem_ctx, user, real_username, True );
+
+ if (pw) {
+ /* if a real user check pam account restrictions */
+ /* only really perfomed if "obey pam restriction" is true */
+ /* do this before an eventual mappign to guest occurs */
+ ret = smb_pam_accountcheck(pw->pw_name);
+ if ( !NT_STATUS_IS_OK(ret)) {
+ DEBUG(1,("PAM account restriction "
+ "prevents user login\n"));
+ data_blob_free(&ap_rep);
+ data_blob_free(&session_key);
+ TALLOC_FREE(mem_ctx);
+ reply_nterror(req, nt_status_squash(ret));
+ return;
+ }
+ }
- pw = smb_getpwnam( user, real_username, True );
if (!pw) {
/* this was originally the behavior of Samba 2.2, if a user
- did not have a local uid but has been authenticated, then
+ did not have a local uid but has been authenticated, then
map them to a guest account */
- if (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID){
+ if (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID){
map_domainuser_to_guest = True;
fstrcpy(user,lp_guestaccount());
- pw = smb_getpwnam( user, real_username, True );
- }
+ pw = smb_getpwnam( mem_ctx, user, real_username, True );
+ }
/* extra sanity check that the guest account is valid */
if ( !pw ) {
- DEBUG(1,("Username %s is invalid on this system\n", user));
+ DEBUG(1,("Username %s is invalid on this system\n",
+ user));
SAFE_FREE(client);
data_blob_free(&ap_rep);
data_blob_free(&session_key);
- talloc_destroy(mem_ctx);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ TALLOC_FREE(mem_ctx);
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ return;
}
}
/* setup the string used by %U */
-
+
sub_set_smb_name( real_username );
reload_services(True);
+
if ( map_domainuser_to_guest ) {
make_server_info_guest(&server_info);
} else if (logon_info) {
- ret = make_server_info_pac(&server_info, real_username, pw, logon_info);
+ /* pass the unmapped username here since map_username()
+ will be called again from inside make_server_info_info3() */
+ ret = make_server_info_info3(mem_ctx, client, domain,
+ &server_info, &logon_info->info3);
if ( !NT_STATUS_IS_OK(ret) ) {
- DEBUG(1,("make_server_info_pac failed!\n"));
+ DEBUG(1,("make_server_info_info3 failed: %s!\n",
+ nt_errstr(ret)));
SAFE_FREE(client);
data_blob_free(&ap_rep);
data_blob_free(&session_key);
- passwd_free(&pw);
- talloc_destroy(mem_ctx);
- return ERROR_NT(ret);
+ TALLOC_FREE(mem_ctx);
+ reply_nterror(req, nt_status_squash(ret));
+ return;
}
} else {
ret = make_server_info_pw(&server_info, real_username, pw);
if ( !NT_STATUS_IS_OK(ret) ) {
- DEBUG(1,("make_server_info_from_pw failed!\n"));
+ DEBUG(1,("make_server_info_pw failed: %s!\n",
+ nt_errstr(ret)));
SAFE_FREE(client);
data_blob_free(&ap_rep);
data_blob_free(&session_key);
- passwd_free(&pw);
- talloc_destroy(mem_ctx);
- return ERROR_NT(ret);
+ TALLOC_FREE(mem_ctx);
+ reply_nterror(req, nt_status_squash(ret));
+ return;
}
- /* make_server_info_pw does not set the domain. Without this we end up
- * with the local netbios name in substitutions for %D. */
+ /* make_server_info_pw does not set the domain. Without this
+ * we end up with the local netbios name in substitutions for
+ * %D. */
if (server_info->sam_account != NULL) {
- pdb_set_domain(server_info->sam_account, domain, PDB_SET);
+ pdb_set_domain(server_info->sam_account,
+ domain, PDB_SET);
}
}
+ if (username_was_mapped) {
+ server_info->was_mapped = username_was_mapped;
+ }
- passwd_free(&pw);
+ /* we need to build the token for the user. make_server_info_guest()
+ already does this */
- /* register_vuid keeps the server info */
- /* register_vuid takes ownership of session_key, no need to free after this.
- A better interface would copy it.... */
- sess_vuid = register_vuid(server_info, session_key, nullblob, client);
+ if ( !server_info->ptok ) {
+ ret = create_local_token( server_info );
+ if ( !NT_STATUS_IS_OK(ret) ) {
+ DEBUG(10,("failed to create local token: %s\n",
+ nt_errstr(ret)));
+ SAFE_FREE(client);
+ data_blob_free(&ap_rep);
+ data_blob_free(&session_key);
+ TALLOC_FREE( mem_ctx );
+ TALLOC_FREE( server_info );
+ reply_nterror(req, nt_status_squash(ret));
+ return;
+ }
+ }
+
+ /* register_existing_vuid keeps the server info */
+ /* register_existing_vuid takes ownership of session_key on success,
+ * no need to free after this on success. A better interface would copy
+ * it.... */
+
+ if (!is_partial_auth_vuid(sess_vuid)) {
+ sess_vuid = register_initial_vuid();
+ }
+ sess_vuid = register_existing_vuid(sess_vuid,
+ server_info,
+ session_key,
+ nullblob,
+ client);
SAFE_FREE(client);
- if (sess_vuid == -1) {
+ reply_outbuf(req, 4, 0);
+ SSVAL(req->outbuf,smb_uid,sess_vuid);
+
+ if (sess_vuid == UID_FIELD_INVALID ) {
ret = NT_STATUS_LOGON_FAILURE;
+ data_blob_free(&session_key);
} else {
/* current_user_info is changed on new vuid */
reload_services( True );
- set_message(outbuf,4,0,True);
- SSVAL(outbuf, smb_vwv3, 0);
-
+ SSVAL(req->outbuf, smb_vwv3, 0);
+
if (server_info->guest) {
- SSVAL(outbuf,smb_vwv2,1);
- }
-
- SSVAL(outbuf, smb_uid, sess_vuid);
-
- if (!server_info->guest && !srv_signing_started()) {
- /* We need to start the signing engine
- * here but a W2K client sends the old
- * "BSRSPYL " signature instead of the
- * correct one. Subsequent packets will
- * be correct.
- */
- srv_check_sign_mac(inbuf, False);
+ SSVAL(req->outbuf,smb_vwv2,1);
}
+
+ SSVAL(req->outbuf, smb_uid, sess_vuid);
+
+ sessionsetup_start_signing_engine(server_info, req->inbuf);
+ /* Successful logon. Keep this vuid. */
+ *p_invalidate_vuid = False;
}
/* wrap that up in a nice GSS-API wrapping */
if (NT_STATUS_IS_OK(ret)) {
- ap_rep_wrapped = spnego_gen_krb5_wrap(ap_rep, TOK_ID_KRB_AP_REP);
+ ap_rep_wrapped = spnego_gen_krb5_wrap(ap_rep,
+ TOK_ID_KRB_AP_REP);
} else {
- ap_rep_wrapped = data_blob(NULL, 0);
+ ap_rep_wrapped = data_blob_null;
}
- response = spnego_gen_auth_response(&ap_rep_wrapped, ret, OID_KERBEROS5_OLD);
- reply_sesssetup_blob(conn, outbuf, response, ret);
+ response = spnego_gen_auth_response(&ap_rep_wrapped, ret,
+ OID_KERBEROS5_OLD);
+ reply_sesssetup_blob(req, response, ret);
data_blob_free(&ap_rep);
data_blob_free(&ap_rep_wrapped);
data_blob_free(&response);
- talloc_destroy(mem_ctx);
-
- return -1; /* already replied */
+ TALLOC_FREE(mem_ctx);
}
+
#endif
/****************************************************************************
leg of the NTLM auth steps.
***************************************************************************/
-static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *inbuf, char *outbuf,
+static void reply_spnego_ntlmssp(struct smb_request *req,
uint16 vuid,
AUTH_NTLMSSP_STATE **auth_ntlmssp_state,
- DATA_BLOB *ntlmssp_blob, NTSTATUS nt_status,
- BOOL wrap)
+ DATA_BLOB *ntlmssp_blob, NTSTATUS nt_status,
+ const char *OID,
+ bool wrap)
{
- BOOL ret;
DATA_BLOB response;
struct auth_serversupplied_info *server_info = NULL;
if (NT_STATUS_IS_OK(nt_status)) {
server_info = (*auth_ntlmssp_state)->server_info;
} else {
- nt_status = do_map_to_guest(nt_status,
- &server_info,
- (*auth_ntlmssp_state)->ntlmssp_state->user,
- (*auth_ntlmssp_state)->ntlmssp_state->domain);
+ nt_status = do_map_to_guest(nt_status,
+ &server_info,
+ (*auth_ntlmssp_state)->ntlmssp_state->user,
+ (*auth_ntlmssp_state)->ntlmssp_state->domain);
}
+ reply_outbuf(req, 4, 0);
+
+ SSVAL(req->outbuf, smb_uid, vuid);
+
if (NT_STATUS_IS_OK(nt_status)) {
- int sess_vuid;
- DATA_BLOB nullblob = data_blob(NULL, 0);
- DATA_BLOB session_key = data_blob((*auth_ntlmssp_state)->ntlmssp_state->session_key.data, (*auth_ntlmssp_state)->ntlmssp_state->session_key.length);
+ DATA_BLOB nullblob = data_blob_null;
+ DATA_BLOB session_key =
+ data_blob(
+ (*auth_ntlmssp_state)->ntlmssp_state->session_key.data,
+ (*auth_ntlmssp_state)->ntlmssp_state->session_key.length);
+
+ if (!is_partial_auth_vuid(vuid)) {
+ data_blob_free(&session_key);
+ nt_status = NT_STATUS_LOGON_FAILURE;
+ goto out;
+ }
+ /* register_existing_vuid keeps the server info */
+ if (register_existing_vuid(vuid,
+ server_info,
+ session_key, nullblob,
+ (*auth_ntlmssp_state)->ntlmssp_state->user) !=
+ vuid) {
+ data_blob_free(&session_key);
+ nt_status = NT_STATUS_LOGON_FAILURE;
+ goto out;
+ }
- /* register_vuid keeps the server info */
- sess_vuid = register_vuid(server_info, session_key, nullblob, (*auth_ntlmssp_state)->ntlmssp_state->user);
(*auth_ntlmssp_state)->server_info = NULL;
- if (sess_vuid == -1) {
- nt_status = NT_STATUS_LOGON_FAILURE;
- } else {
-
- /* current_user_info is changed on new vuid */
- reload_services( True );
-
- set_message(outbuf,4,0,True);
- SSVAL(outbuf, smb_vwv3, 0);
-
- if (server_info->guest) {
- SSVAL(outbuf,smb_vwv2,1);
- }
-
- SSVAL(outbuf,smb_uid,sess_vuid);
-
- if (!server_info->guest && !srv_signing_started()) {
- /* We need to start the signing engine
- * here but a W2K client sends the old
- * "BSRSPYL " signature instead of the
- * correct one. Subsequent packets will
- * be correct.
- */
-
- srv_check_sign_mac(inbuf, False);
- }
+ /* current_user_info is changed on new vuid */
+ reload_services( True );
+
+ SSVAL(req->outbuf, smb_vwv3, 0);
+
+ if (server_info->guest) {
+ SSVAL(req->outbuf,smb_vwv2,1);
}
+
+ sessionsetup_start_signing_engine(server_info,
+ (uint8 *)req->inbuf);
}
+ out:
+
if (wrap) {
- response = spnego_gen_auth_response(ntlmssp_blob, nt_status, OID_NTLMSSP);
+ response = spnego_gen_auth_response(ntlmssp_blob,
+ nt_status, OID);
} else {
response = *ntlmssp_blob;
}
- ret = reply_sesssetup_blob(conn, outbuf, response, nt_status);
+ reply_sesssetup_blob(req, response, nt_status);
if (wrap) {
data_blob_free(&response);
}
/* NT_STATUS_MORE_PROCESSING_REQUIRED from our NTLMSSP code tells us,
and the other end, that we are not finished yet. */
- if (!ret || !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
/* NB. This is *NOT* an error case. JRA */
auth_ntlmssp_end(auth_ntlmssp_state);
- /* Kill the intermediate vuid */
- invalidate_vuid(vuid);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ /* Kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ }
}
-
- return ret;
}
/****************************************************************************
- Reply to a session setup spnego negotiate packet.
+ Is this a krb5 mechanism ?
****************************************************************************/
-static int reply_spnego_negotiate(connection_struct *conn,
- char *inbuf,
- char *outbuf,
- uint16 vuid,
- int length, int bufsize,
- DATA_BLOB blob1,
- AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
+NTSTATUS parse_spnego_mechanisms(DATA_BLOB blob_in, DATA_BLOB *pblob_out,
+ bool *p_is_krb5)
{
char *OIDs[ASN1_MAX_OIDS];
- DATA_BLOB secblob;
int i;
- DATA_BLOB chal;
-#ifdef HAVE_KRB5
- BOOL got_kerberos_mechanism = False;
-#endif
- NTSTATUS nt_status;
- /* parse out the OIDs and the first sec blob */
- if (!parse_negTokenTarg(blob1, OIDs, &secblob)) {
- /* Kill the intermediate vuid */
- invalidate_vuid(vuid);
+ *p_is_krb5 = False;
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ /* parse out the OIDs and the first sec blob */
+ if (!parse_negTokenTarg(blob_in, OIDs, pblob_out)) {
+ return NT_STATUS_LOGON_FAILURE;
}
/* only look at the first OID for determining the mechToken --
- accoirding to RFC2478, we should choose the one we want
- and renegotiate, but i smell a client bug here..
-
- Problem observed when connecting to a member (samba box)
- of an AD domain as a user in a Samba domain. Samba member
- server sent back krb5/mskrb5/ntlmssp as mechtypes, but the
- client (2ksp3) replied with ntlmssp/mskrb5/krb5 and an
+ according to RFC2478, we should choose the one we want
+ and renegotiate, but i smell a client bug here..
+
+ Problem observed when connecting to a member (samba box)
+ of an AD domain as a user in a Samba domain. Samba member
+ server sent back krb5/mskrb5/ntlmssp as mechtypes, but the
+ client (2ksp3) replied with ntlmssp/mskrb5/krb5 and an
NTLMSSP mechtoken. --jerry */
-#ifdef HAVE_KRB5
+#ifdef HAVE_KRB5
if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 ||
strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
- got_kerberos_mechanism = True;
+ *p_is_krb5 = True;
}
#endif
-
+
for (i=0;OIDs[i];i++) {
- DEBUG(3,("Got OID %s\n", OIDs[i]));
+ DEBUG(5,("parse_spnego_mechanisms: Got OID %s\n", OIDs[i]));
free(OIDs[i]);
}
- DEBUG(3,("Got secblob of size %lu\n", (unsigned long)secblob.length));
+ return NT_STATUS_OK;
+}
-#ifdef HAVE_KRB5
- if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
- int ret = reply_spnego_kerberos(conn, inbuf, outbuf,
- length, bufsize, &secblob);
- data_blob_free(&secblob);
+/****************************************************************************
+ Fall back from krb5 to NTLMSSP.
+****************************************************************************/
+
+static void reply_spnego_downgrade_to_ntlmssp(struct smb_request *req,
+ uint16 vuid)
+{
+ DATA_BLOB response;
+
+ reply_outbuf(req, 4, 0);
+ SSVAL(req->outbuf,smb_uid,vuid);
+
+ DEBUG(3,("reply_spnego_downgrade_to_ntlmssp: Got krb5 ticket in SPNEGO "
+ "but set to downgrade to NTLMSSP\n"));
+
+ response = spnego_gen_auth_response(NULL,
+ NT_STATUS_MORE_PROCESSING_REQUIRED,
+ OID_NTLMSSP);
+ reply_sesssetup_blob(req, response, NT_STATUS_MORE_PROCESSING_REQUIRED);
+ data_blob_free(&response);
+}
+
+/****************************************************************************
+ Reply to a session setup spnego negotiate packet.
+****************************************************************************/
+
+static void reply_spnego_negotiate(struct smb_request *req,
+ uint16 vuid,
+ DATA_BLOB blob1,
+ AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
+{
+ DATA_BLOB secblob;
+ DATA_BLOB chal;
+ bool got_kerberos_mechanism = False;
+ NTSTATUS status;
+
+ status = parse_spnego_mechanisms(blob1, &secblob,
+ &got_kerberos_mechanism);
+ if (!NT_STATUS_IS_OK(status)) {
/* Kill the intermediate vuid */
invalidate_vuid(vuid);
+ reply_nterror(req, nt_status_squash(status));
+ return;
+ }
+
+ DEBUG(3,("reply_spnego_negotiate: Got secblob of size %lu\n",
+ (unsigned long)secblob.length));
- return ret;
+#ifdef HAVE_KRB5
+ if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) ||
+ lp_use_kerberos_keytab()) ) {
+ bool destroy_vuid = True;
+ reply_spnego_kerberos(req, &secblob, vuid,
+ &destroy_vuid);
+ data_blob_free(&secblob);
+ if (destroy_vuid) {
+ /* Kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ }
+ return;
}
#endif
auth_ntlmssp_end(auth_ntlmssp_state);
}
- nt_status = auth_ntlmssp_start(auth_ntlmssp_state);
- if (!NT_STATUS_IS_OK(nt_status)) {
+ if (got_kerberos_mechanism) {
+ data_blob_free(&secblob);
+ /* The mechtoken is a krb5 ticket, but
+ * we need to fall back to NTLM. */
+ reply_spnego_downgrade_to_ntlmssp(req,
+ vuid);
+ return;
+ }
+
+ status = auth_ntlmssp_start(auth_ntlmssp_state);
+ if (!NT_STATUS_IS_OK(status)) {
/* Kill the intermediate vuid */
invalidate_vuid(vuid);
-
- return ERROR_NT(nt_status);
+ reply_nterror(req, nt_status_squash(status));
+ return;
}
- nt_status = auth_ntlmssp_update(*auth_ntlmssp_state,
+ status = auth_ntlmssp_update(*auth_ntlmssp_state,
secblob, &chal);
data_blob_free(&secblob);
- reply_spnego_ntlmssp(conn, inbuf, outbuf, vuid, auth_ntlmssp_state,
- &chal, nt_status, True);
+ reply_spnego_ntlmssp(req, vuid, auth_ntlmssp_state,
+ &chal, status, OID_NTLMSSP, true);
data_blob_free(&chal);
/* already replied */
- return -1;
+ return;
}
-
+
/****************************************************************************
Reply to a session setup spnego auth packet.
****************************************************************************/
-static int reply_spnego_auth(connection_struct *conn, char *inbuf, char *outbuf,
- uint16 vuid,
- int length, int bufsize,
- DATA_BLOB blob1,
- AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
+static void reply_spnego_auth(struct smb_request *req,
+ uint16 vuid,
+ DATA_BLOB blob1,
+ AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
{
- DATA_BLOB auth, auth_reply;
- NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
+ DATA_BLOB auth = data_blob_null;
+ DATA_BLOB auth_reply = data_blob_null;
+ DATA_BLOB secblob = data_blob_null;
+ NTSTATUS status = NT_STATUS_LOGON_FAILURE;
if (!spnego_parse_auth(blob1, &auth)) {
#if 0
/* Kill the intermediate vuid */
invalidate_vuid(vuid);
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ return;
}
-
- if (!*auth_ntlmssp_state) {
- /* Kill the intermediate vuid */
- invalidate_vuid(vuid);
- /* auth before negotiatiate? */
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ if (auth.data[0] == ASN1_APPLICATION(0)) {
+ /* Might be a second negTokenTarg packet */
+
+ bool got_krb5_mechanism = False;
+ status = parse_spnego_mechanisms(auth, &secblob,
+ &got_krb5_mechanism);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ /* Kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ reply_nterror(req, nt_status_squash(status));
+ return;
+ }
+
+ DEBUG(3,("reply_spnego_auth: Got secblob of size %lu\n",
+ (unsigned long)secblob.length));
+#ifdef HAVE_KRB5
+ if ( got_krb5_mechanism && ((lp_security()==SEC_ADS) ||
+ lp_use_kerberos_keytab()) ) {
+ bool destroy_vuid = True;
+ reply_spnego_kerberos(req, &secblob,
+ vuid, &destroy_vuid);
+ data_blob_free(&secblob);
+ data_blob_free(&auth);
+ if (destroy_vuid) {
+ /* Kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ }
+ return;
+ }
+#endif
+ /* Can't blunder into NTLMSSP auth if we have
+ * a krb5 ticket. */
+
+ if (got_krb5_mechanism) {
+ /* Kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ DEBUG(3,("reply_spnego_auth: network "
+ "misconfiguration, client sent us a "
+ "krb5 ticket and kerberos security "
+ "not enabled"));
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ }
+ }
+
+ /* If we get here it wasn't a negTokenTarg auth packet. */
+ data_blob_free(&secblob);
+
+ if (!*auth_ntlmssp_state) {
+ status = auth_ntlmssp_start(auth_ntlmssp_state);
+ if (!NT_STATUS_IS_OK(status)) {
+ /* Kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ reply_nterror(req, nt_status_squash(status));
+ return;
+ }
}
-
- nt_status = auth_ntlmssp_update(*auth_ntlmssp_state,
+
+ status = auth_ntlmssp_update(*auth_ntlmssp_state,
auth, &auth_reply);
data_blob_free(&auth);
- reply_spnego_ntlmssp(conn, inbuf, outbuf, vuid,
+ /* Don't send the mechid as we've already sent this (RFC4178). */
+
+ reply_spnego_ntlmssp(req, vuid,
auth_ntlmssp_state,
- &auth_reply, nt_status, True);
-
+ &auth_reply, status, NULL, true);
+
data_blob_free(&auth_reply);
/* and tell smbd that we have already replied to this packet */
- return -1;
+ return;
+}
+
+/****************************************************************************
+ List to store partial SPNEGO auth fragments.
+****************************************************************************/
+
+static struct pending_auth_data *pd_list;
+
+/****************************************************************************
+ Delete an entry on the list.
+****************************************************************************/
+
+static void delete_partial_auth(struct pending_auth_data *pad)
+{
+ if (!pad) {
+ return;
+ }
+ DLIST_REMOVE(pd_list, pad);
+ data_blob_free(&pad->partial_data);
+ SAFE_FREE(pad);
+}
+
+/****************************************************************************
+ Search for a partial SPNEGO auth fragment matching an smbpid.
+****************************************************************************/
+
+static struct pending_auth_data *get_pending_auth_data(uint16 smbpid)
+{
+ struct pending_auth_data *pad;
+
+ for (pad = pd_list; pad; pad = pad->next) {
+ if (pad->smbpid == smbpid) {
+ break;
+ }
+ }
+ return pad;
+}
+
+/****************************************************************************
+ Check the size of an SPNEGO blob. If we need more return
+ NT_STATUS_MORE_PROCESSING_REQUIRED, else return NT_STATUS_OK. Don't allow
+ the blob to be more than 64k.
+****************************************************************************/
+
+static NTSTATUS check_spnego_blob_complete(uint16 smbpid, uint16 vuid,
+ DATA_BLOB *pblob)
+{
+ struct pending_auth_data *pad = NULL;
+ ASN1_DATA data;
+ size_t needed_len = 0;
+
+ pad = get_pending_auth_data(smbpid);
+
+ /* Ensure we have some data. */
+ if (pblob->length == 0) {
+ /* Caller can cope. */
+ DEBUG(2,("check_spnego_blob_complete: zero blob length !\n"));
+ delete_partial_auth(pad);
+ return NT_STATUS_OK;
+ }
+
+ /* Were we waiting for more data ? */
+ if (pad) {
+ DATA_BLOB tmp_blob;
+ size_t copy_len = MIN(65536, pblob->length);
+
+ /* Integer wrap paranoia.... */
+
+ if (pad->partial_data.length + copy_len <
+ pad->partial_data.length ||
+ pad->partial_data.length + copy_len < copy_len) {
+
+ DEBUG(2,("check_spnego_blob_complete: integer wrap "
+ "pad->partial_data.length = %u, "
+ "copy_len = %u\n",
+ (unsigned int)pad->partial_data.length,
+ (unsigned int)copy_len ));
+
+ delete_partial_auth(pad);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ DEBUG(10,("check_spnego_blob_complete: "
+ "pad->partial_data.length = %u, "
+ "pad->needed_len = %u, "
+ "copy_len = %u, "
+ "pblob->length = %u,\n",
+ (unsigned int)pad->partial_data.length,
+ (unsigned int)pad->needed_len,
+ (unsigned int)copy_len,
+ (unsigned int)pblob->length ));
+
+ tmp_blob = data_blob(NULL,
+ pad->partial_data.length + copy_len);
+
+ /* Concatenate the two (up to copy_len) bytes. */
+ memcpy(tmp_blob.data,
+ pad->partial_data.data,
+ pad->partial_data.length);
+ memcpy(tmp_blob.data + pad->partial_data.length,
+ pblob->data,
+ copy_len);
+
+ /* Replace the partial data. */
+ data_blob_free(&pad->partial_data);
+ pad->partial_data = tmp_blob;
+ ZERO_STRUCT(tmp_blob);
+
+ /* Are we done ? */
+ if (pblob->length >= pad->needed_len) {
+ /* Yes, replace pblob. */
+ data_blob_free(pblob);
+ *pblob = pad->partial_data;
+ ZERO_STRUCT(pad->partial_data);
+ delete_partial_auth(pad);
+ return NT_STATUS_OK;
+ }
+
+ /* Still need more data. */
+ pad->needed_len -= copy_len;
+ return NT_STATUS_MORE_PROCESSING_REQUIRED;
+ }
+
+ if ((pblob->data[0] != ASN1_APPLICATION(0)) &&
+ (pblob->data[0] != ASN1_CONTEXT(1))) {
+ /* Not something we can determine the
+ * length of.
+ */
+ return NT_STATUS_OK;
+ }
+
+ /* This is a new SPNEGO sessionsetup - see if
+ * the data given in this blob is enough.
+ */
+
+ asn1_load(&data, *pblob);
+ asn1_start_tag(&data, pblob->data[0]);
+ if (data.has_error || data.nesting == NULL) {
+ asn1_free(&data);
+ /* Let caller catch. */
+ return NT_STATUS_OK;
+ }
+
+ /* Integer wrap paranoia.... */
+
+ if (data.nesting->taglen + data.nesting->start < data.nesting->taglen ||
+ data.nesting->taglen + data.nesting->start < data.nesting->start) {
+
+ DEBUG(2,("check_spnego_blob_complete: integer wrap "
+ "data.nesting->taglen = %u, "
+ "data.nesting->start = %u\n",
+ (unsigned int)data.nesting->taglen,
+ (unsigned int)data.nesting->start ));
+
+ asn1_free(&data);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* Total length of the needed asn1 is the tag length
+ * plus the current offset. */
+
+ needed_len = data.nesting->taglen + data.nesting->start;
+ asn1_free(&data);
+
+ DEBUG(10,("check_spnego_blob_complete: needed_len = %u, "
+ "pblob->length = %u\n",
+ (unsigned int)needed_len,
+ (unsigned int)pblob->length ));
+
+ if (needed_len <= pblob->length) {
+ /* Nothing to do - blob is complete. */
+ return NT_STATUS_OK;
+ }
+
+ /* Refuse the blob if it's bigger than 64k. */
+ if (needed_len > 65536) {
+ DEBUG(2,("check_spnego_blob_complete: needed_len "
+ "too large (%u)\n",
+ (unsigned int)needed_len ));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* We must store this blob until complete. */
+ if (!(pad = SMB_MALLOC_P(struct pending_auth_data))) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ pad->needed_len = needed_len - pblob->length;
+ pad->partial_data = data_blob(pblob->data, pblob->length);
+ if (pad->partial_data.data == NULL) {
+ SAFE_FREE(pad);
+ return NT_STATUS_NO_MEMORY;
+ }
+ pad->smbpid = smbpid;
+ pad->vuid = vuid;
+ DLIST_ADD(pd_list, pad);
+
+ return NT_STATUS_MORE_PROCESSING_REQUIRED;
}
/****************************************************************************
Reply to a session setup command.
+ conn POINTER CAN BE NULL HERE !
****************************************************************************/
-static int reply_sesssetup_and_X_spnego(connection_struct *conn, char *inbuf,
- char *outbuf,
- int length,int bufsize)
+static void reply_sesssetup_and_X_spnego(struct smb_request *req)
{
uint8 *p;
DATA_BLOB blob1;
- int ret;
size_t bufrem;
fstring native_os, native_lanman, primary_domain;
- char *p2;
- uint16 data_blob_len = SVAL(inbuf, smb_vwv7);
+ const char *p2;
+ uint16 data_blob_len = SVAL(req->inbuf, smb_vwv7);
enum remote_arch_types ra_type = get_remote_arch();
- int vuid = SVAL(inbuf,smb_uid);
+ int vuid = SVAL(req->inbuf,smb_uid);
user_struct *vuser = NULL;
+ NTSTATUS status = NT_STATUS_OK;
+ uint16 smbpid = req->smbpid;
+ uint16 smb_flag2 = req->flags2;
DEBUG(3,("Doing spnego session setup\n"));
if (global_client_caps == 0) {
- global_client_caps = IVAL(inbuf,smb_vwv10);
+ global_client_caps = IVAL(req->inbuf,smb_vwv10);
if (!(global_client_caps & CAP_STATUS32)) {
remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
}
}
-
- p = (uint8 *)smb_buf(inbuf);
+
+ p = (uint8 *)smb_buf(req->inbuf);
if (data_blob_len == 0) {
/* an invalid request */
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
+ return;
}
- bufrem = smb_bufrem(inbuf, p);
+ bufrem = smb_bufrem(req->inbuf, p);
/* pull the spnego blob */
blob1 = data_blob(p, MIN(bufrem, data_blob_len));
file_save("negotiate.dat", blob1.data, blob1.length);
#endif
- p2 = inbuf + smb_vwv13 + data_blob_len;
- p2 += srvstr_pull_buf(inbuf, native_os, p2, sizeof(native_os), STR_TERMINATE);
- p2 += srvstr_pull_buf(inbuf, native_lanman, p2, sizeof(native_lanman), STR_TERMINATE);
- p2 += srvstr_pull_buf(inbuf, primary_domain, p2, sizeof(primary_domain), STR_TERMINATE);
- DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s] PrimaryDomain=[%s]\n",
+ p2 = (char *)req->inbuf + smb_vwv13 + data_blob_len;
+ p2 += srvstr_pull_buf(req->inbuf, smb_flag2, native_os, p2,
+ sizeof(native_os), STR_TERMINATE);
+ p2 += srvstr_pull_buf(req->inbuf, smb_flag2, native_lanman, p2,
+ sizeof(native_lanman), STR_TERMINATE);
+ p2 += srvstr_pull_buf(req->inbuf, smb_flag2, primary_domain, p2,
+ sizeof(primary_domain), STR_TERMINATE);
+ DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s] PrimaryDomain=[%s]\n",
native_os, native_lanman, primary_domain));
if ( ra_type == RA_WIN2K ) {
- /* Windows 2003 doesn't set the native lanman string,
+ /* Vista sets neither the OS or lanman strings */
+
+ if ( !strlen(native_os) && !strlen(native_lanman) )
+ set_remote_arch(RA_VISTA);
+
+ /* Windows 2003 doesn't set the native lanman string,
but does set primary domain which is a bug I think */
-
- if ( !strlen(native_lanman) )
+
+ if ( !strlen(native_lanman) ) {
ra_lanman_string( primary_domain );
- else
+ } else {
ra_lanman_string( native_lanman );
+ }
}
-
- vuser = get_partial_auth_user_struct(vuid);
- if (!vuser) {
- vuid = register_vuid(NULL, data_blob(NULL, 0), data_blob(NULL, 0), NULL);
- if (vuid == -1) {
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+
+ /* Did we get a valid vuid ? */
+ if (!is_partial_auth_vuid(vuid)) {
+ /* No, then try and see if this is an intermediate sessionsetup
+ * for a large SPNEGO packet. */
+ struct pending_auth_data *pad = get_pending_auth_data(smbpid);
+ if (pad) {
+ DEBUG(10,("reply_sesssetup_and_X_spnego: found "
+ "pending vuid %u\n",
+ (unsigned int)pad->vuid ));
+ vuid = pad->vuid;
}
-
- vuser = get_partial_auth_user_struct(vuid);
}
+ /* Do we have a valid vuid now ? */
+ if (!is_partial_auth_vuid(vuid)) {
+ /* No, start a new authentication setup. */
+ vuid = register_initial_vuid();
+ if (vuid == UID_FIELD_INVALID) {
+ data_blob_free(&blob1);
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_INVALID_PARAMETER));
+ return;
+ }
+ }
+
+ vuser = get_partial_auth_user_struct(vuid);
+ /* This MUST be valid. */
if (!vuser) {
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ smb_panic("reply_sesssetup_and_X_spnego: invalid vuid.");
}
-
- SSVAL(outbuf,smb_uid,vuid);
-
+
+ /* Large (greater than 4k) SPNEGO blobs are split into multiple
+ * sessionsetup requests as the Windows limit on the security blob
+ * field is 4k. Bug #4400. JRA.
+ */
+
+ status = check_spnego_blob_complete(smbpid, vuid, &blob1);
+ if (!NT_STATUS_IS_OK(status)) {
+ if (!NT_STATUS_EQUAL(status,
+ NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ /* Real error - kill the intermediate vuid */
+ invalidate_vuid(vuid);
+ }
+ data_blob_free(&blob1);
+ reply_nterror(req, nt_status_squash(status));
+ return;
+ }
+
if (blob1.data[0] == ASN1_APPLICATION(0)) {
+
/* its a negTokenTarg packet */
- ret = reply_spnego_negotiate(conn, inbuf, outbuf, vuid, length, bufsize, blob1,
- &vuser->auth_ntlmssp_state);
+
+ reply_spnego_negotiate(req, vuid, blob1,
+ &vuser->auth_ntlmssp_state);
data_blob_free(&blob1);
- return ret;
+ return;
}
if (blob1.data[0] == ASN1_CONTEXT(1)) {
+
/* its a auth packet */
- ret = reply_spnego_auth(conn, inbuf, outbuf, vuid, length, bufsize, blob1,
- &vuser->auth_ntlmssp_state);
+
+ reply_spnego_auth(req, vuid, blob1,
+ &vuser->auth_ntlmssp_state);
data_blob_free(&blob1);
- return ret;
+ return;
}
if (strncmp((char *)(blob1.data), "NTLMSSP", 7) == 0) {
DATA_BLOB chal;
- NTSTATUS nt_status;
+
if (!vuser->auth_ntlmssp_state) {
- nt_status = auth_ntlmssp_start(&vuser->auth_ntlmssp_state);
- if (!NT_STATUS_IS_OK(nt_status)) {
+ status = auth_ntlmssp_start(&vuser->auth_ntlmssp_state);
+ if (!NT_STATUS_IS_OK(status)) {
/* Kill the intermediate vuid */
invalidate_vuid(vuid);
-
- return ERROR_NT(nt_status);
+ data_blob_free(&blob1);
+ reply_nterror(req, nt_status_squash(status));
+ return;
}
}
- nt_status = auth_ntlmssp_update(vuser->auth_ntlmssp_state,
+ status = auth_ntlmssp_update(vuser->auth_ntlmssp_state,
blob1, &chal);
-
+
data_blob_free(&blob1);
-
- reply_spnego_ntlmssp(conn, inbuf, outbuf, vuid,
- &vuser->auth_ntlmssp_state,
- &chal, nt_status, False);
+
+ reply_spnego_ntlmssp(req, vuid,
+ &vuser->auth_ntlmssp_state,
+ &chal, status, OID_NTLMSSP, false);
data_blob_free(&chal);
- return -1;
+ return;
}
/* what sort of packet is this? */
data_blob_free(&blob1);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
}
/****************************************************************************
a new session setup with VC==0 is ignored.
****************************************************************************/
+static int shutdown_other_smbds(struct db_record *rec,
+ const struct connections_key *key,
+ const struct connections_data *crec,
+ void *private_data)
+{
+ const char *ip = (const char *)private_data;
+
+ if (!process_exists(crec->pid)) {
+ return 0;
+ }
+
+ if (procid_is_me(&crec->pid)) {
+ return 0;
+ }
+
+ if (strcmp(ip, crec->addr) != 0) {
+ return 0;
+ }
+
+ messaging_send(smbd_messaging_context(), crec->pid, MSG_SHUTDOWN,
+ &data_blob_null);
+ return 0;
+}
+
static void setup_new_vc_session(void)
{
- DEBUG(2,("setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.\n"));
+ char addr[INET6_ADDRSTRLEN];
+
+ DEBUG(2,("setup_new_vc_session: New VC == 0, if NT4.x "
+ "compatible we would close all old resources.\n"));
#if 0
conn_close_all();
invalidate_all_vuids();
#endif
+ if (lp_reset_on_zero_vc()) {
+ connections_forall(shutdown_other_smbds,
+ CONST_DISCARD(void *,
+ client_addr(get_client_fd(),addr,sizeof(addr))));
+ }
}
/****************************************************************************
Reply to a session setup command.
****************************************************************************/
-int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
- int length,int bufsize)
+void reply_sesssetup_and_X(struct smb_request *req)
{
int sess_vuid;
- int smb_bufsize;
+ int smb_bufsize;
DATA_BLOB lm_resp;
DATA_BLOB nt_resp;
DATA_BLOB plaintext_password;
fstring native_os;
fstring native_lanman;
fstring primary_domain;
- static BOOL done_sesssetup = False;
- extern BOOL global_encrypted_passwords_negotiated;
- extern BOOL global_spnego_negotiated;
- extern enum protocol_types Protocol;
- extern int max_send;
-
+ static bool done_sesssetup = False;
auth_usersupplied_info *user_info = NULL;
- extern struct auth_context *negprot_global_auth_context;
auth_serversupplied_info *server_info = NULL;
+ uint16 smb_flag2 = req->flags2;
NTSTATUS nt_status;
- BOOL doencrypt = global_encrypted_passwords_negotiated;
+ bool doencrypt = global_encrypted_passwords_negotiated;
DATA_BLOB session_key;
-
+
START_PROFILE(SMBsesssetupX);
ZERO_STRUCT(lm_resp);
ZERO_STRUCT(nt_resp);
ZERO_STRUCT(plaintext_password);
- DEBUG(3,("wct=%d flg2=0x%x\n", CVAL(inbuf, smb_wct), SVAL(inbuf, smb_flg2)));
+ DEBUG(3,("wct=%d flg2=0x%x\n", req->wct, req->flags2));
/* a SPNEGO session setup has 12 command words, whereas a normal
NT1 session setup has 13. See the cifs spec. */
- if (CVAL(inbuf, smb_wct) == 12 &&
- (SVAL(inbuf, smb_flg2) & FLAGS2_EXTENDED_SECURITY)) {
+ if (req->wct == 12 &&
+ (req->flags2 & FLAGS2_EXTENDED_SECURITY)) {
+
if (!global_spnego_negotiated) {
- DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt at SPNEGO session setup when it was not negoitiated.\n"));
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt "
+ "at SPNEGO session setup when it was not "
+ "negotiated.\n"));
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
- if (SVAL(inbuf,smb_vwv4) == 0) {
+ if (SVAL(req->inbuf,smb_vwv4) == 0) {
setup_new_vc_session();
}
- return reply_sesssetup_and_X_spnego(conn, inbuf, outbuf, length, bufsize);
+
+ reply_sesssetup_and_X_spnego(req);
+ END_PROFILE(SMBsesssetupX);
+ return;
}
- smb_bufsize = SVAL(inbuf,smb_vwv2);
+ smb_bufsize = SVAL(req->inbuf,smb_vwv2);
if (Protocol < PROTOCOL_NT1) {
- uint16 passlen1 = SVAL(inbuf,smb_vwv7);
+ uint16 passlen1 = SVAL(req->inbuf,smb_vwv7);
- /* Never do NT status codes with protocols before NT1 as we don't get client caps. */
+ /* Never do NT status codes with protocols before NT1 as we
+ * don't get client caps. */
remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
- if ((passlen1 > MAX_PASS_LEN) || (passlen1 > smb_bufrem(inbuf, smb_buf(inbuf)))) {
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ if ((passlen1 > MAX_PASS_LEN)
+ || (passlen1 > smb_bufrem(req->inbuf,
+ smb_buf(req->inbuf)))) {
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_INVALID_PARAMETER));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
if (doencrypt) {
- lm_resp = data_blob(smb_buf(inbuf), passlen1);
+ lm_resp = data_blob(smb_buf(req->inbuf), passlen1);
} else {
- plaintext_password = data_blob(smb_buf(inbuf), passlen1+1);
+ plaintext_password = data_blob(smb_buf(req->inbuf),
+ passlen1+1);
/* Ensure null termination */
plaintext_password.data[passlen1] = 0;
}
- srvstr_pull_buf(inbuf, user, smb_buf(inbuf)+passlen1, sizeof(user), STR_TERMINATE);
+ srvstr_pull_buf(req->inbuf, req->flags2, user,
+ smb_buf(req->inbuf)+passlen1, sizeof(user),
+ STR_TERMINATE);
*domain = 0;
} else {
- uint16 passlen1 = SVAL(inbuf,smb_vwv7);
- uint16 passlen2 = SVAL(inbuf,smb_vwv8);
+ uint16 passlen1 = SVAL(req->inbuf,smb_vwv7);
+ uint16 passlen2 = SVAL(req->inbuf,smb_vwv8);
enum remote_arch_types ra_type = get_remote_arch();
- char *p = smb_buf(inbuf);
- char *save_p = smb_buf(inbuf);
+ char *p = smb_buf(req->inbuf);
+ char *save_p = smb_buf(req->inbuf);
uint16 byte_count;
-
+
if(global_client_caps == 0) {
- global_client_caps = IVAL(inbuf,smb_vwv11);
-
+ global_client_caps = IVAL(req->inbuf,smb_vwv11);
+
if (!(global_client_caps & CAP_STATUS32)) {
- remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
+ remove_from_common_flags2(
+ FLAGS2_32_BIT_ERROR_CODES);
}
- /* client_caps is used as final determination if client is NT or Win95.
- This is needed to return the correct error codes in some
- circumstances.
+ /* client_caps is used as final determination if
+ * client is NT or Win95. This is needed to return
+ * the correct error codes in some circumstances.
*/
-
- if(ra_type == RA_WINNT || ra_type == RA_WIN2K || ra_type == RA_WIN95) {
- if(!(global_client_caps & (CAP_NT_SMBS | CAP_STATUS32))) {
+
+ if(ra_type == RA_WINNT || ra_type == RA_WIN2K ||
+ ra_type == RA_WIN95) {
+ if(!(global_client_caps & (CAP_NT_SMBS|
+ CAP_STATUS32))) {
set_remote_arch( RA_WIN95);
}
}
}
if (!doencrypt) {
- /* both Win95 and WinNT stuff up the password lengths for
- non-encrypting systems. Uggh.
-
- if passlen1==24 its a win95 system, and its setting the
- password length incorrectly. Luckily it still works with the
- default code because Win95 will null terminate the password
- anyway
-
- if passlen1>0 and passlen2>0 then maybe its a NT box and its
- setting passlen2 to some random value which really stuffs
- things up. we need to fix that one. */
-
- if (passlen1 > 0 && passlen2 > 0 && passlen2 != 24 && passlen2 != 1)
+ /* both Win95 and WinNT stuff up the password
+ * lengths for non-encrypting systems. Uggh.
+
+ if passlen1==24 its a win95 system, and its setting
+ the password length incorrectly. Luckily it still
+ works with the default code because Win95 will null
+ terminate the password anyway
+
+ if passlen1>0 and passlen2>0 then maybe its a NT box
+ and its setting passlen2 to some random value which
+ really stuffs things up. we need to fix that one. */
+
+ if (passlen1 > 0 && passlen2 > 0 && passlen2 != 24 &&
+ passlen2 != 1) {
passlen2 = 0;
+ }
}
-
+
/* check for nasty tricks */
- if (passlen1 > MAX_PASS_LEN || passlen1 > smb_bufrem(inbuf, p)) {
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ if (passlen1 > MAX_PASS_LEN
+ || passlen1 > smb_bufrem(req->inbuf, p)) {
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_INVALID_PARAMETER));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
- if (passlen2 > MAX_PASS_LEN || passlen2 > smb_bufrem(inbuf, p+passlen1)) {
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ if (passlen2 > MAX_PASS_LEN
+ || passlen2 > smb_bufrem(req->inbuf, p+passlen1)) {
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_INVALID_PARAMETER));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
/* Save the lanman2 password and the NT md4 password. */
-
+
if ((doencrypt) && (passlen1 != 0) && (passlen1 != 24)) {
doencrypt = False;
}
if (doencrypt) {
lm_resp = data_blob(p, passlen1);
nt_resp = data_blob(p+passlen1, passlen2);
- } else {
- pstring pass;
- BOOL unic=SVAL(inbuf, smb_flg2) & FLAGS2_UNICODE_STRINGS;
-
-#if 0
- /* This was the previous fix. Not sure if it's still valid. JRA. */
- if ((ra_type == RA_WINNT) && (passlen2 == 0) && unic && passlen1) {
- /* NT4.0 stuffs up plaintext unicode password lengths... */
- srvstr_pull(inbuf, pass, smb_buf(inbuf) + 1,
- sizeof(pass), passlen1, STR_TERMINATE);
-#endif
+ } else if (lp_security() != SEC_SHARE) {
+ char *pass = NULL;
+ bool unic= smb_flag2 & FLAGS2_UNICODE_STRINGS;
if (unic && (passlen2 == 0) && passlen1) {
/* Only a ascii plaintext password was sent. */
- srvstr_pull(inbuf, pass, smb_buf(inbuf), sizeof(pass),
- passlen1, STR_TERMINATE|STR_ASCII);
+ (void)srvstr_pull_talloc(talloc_tos(),
+ req->inbuf,
+ req->flags2,
+ &pass,
+ smb_buf(req->inbuf),
+ passlen1,
+ STR_TERMINATE|STR_ASCII);
} else {
- srvstr_pull(inbuf, pass, smb_buf(inbuf),
- sizeof(pass), unic ? passlen2 : passlen1,
- STR_TERMINATE);
+ (void)srvstr_pull_talloc(talloc_tos(),
+ req->inbuf,
+ req->flags2,
+ &pass,
+ smb_buf(req->inbuf),
+ unic ? passlen2 : passlen1,
+ STR_TERMINATE);
+ }
+ if (!pass) {
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_INVALID_PARAMETER));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
plaintext_password = data_blob(pass, strlen(pass)+1);
}
-
+
p += passlen1 + passlen2;
- p += srvstr_pull_buf(inbuf, user, p, sizeof(user), STR_TERMINATE);
- p += srvstr_pull_buf(inbuf, domain, p, sizeof(domain), STR_TERMINATE);
- p += srvstr_pull_buf(inbuf, native_os, p, sizeof(native_os), STR_TERMINATE);
- p += srvstr_pull_buf(inbuf, native_lanman, p, sizeof(native_lanman), STR_TERMINATE);
-
- /* not documented or decoded by Ethereal but there is one more string
- in the extra bytes which is the same as the PrimaryDomain when using
- extended security. Windows NT 4 and 2003 use this string to store
- the native lanman string. Windows 9x does not include a string here
- at all so we have to check if we have any extra bytes left */
-
- byte_count = SVAL(inbuf, smb_vwv13);
- if ( PTR_DIFF(p, save_p) < byte_count)
- p += srvstr_pull_buf(inbuf, primary_domain, p, sizeof(primary_domain), STR_TERMINATE);
- else
+ p += srvstr_pull_buf(req->inbuf, req->flags2, user, p,
+ sizeof(user), STR_TERMINATE);
+ p += srvstr_pull_buf(req->inbuf, req->flags2, domain, p,
+ sizeof(domain), STR_TERMINATE);
+ p += srvstr_pull_buf(req->inbuf, req->flags2, native_os,
+ p, sizeof(native_os), STR_TERMINATE);
+ p += srvstr_pull_buf(req->inbuf, req->flags2,
+ native_lanman, p, sizeof(native_lanman),
+ STR_TERMINATE);
+
+ /* not documented or decoded by Ethereal but there is one more
+ * string in the extra bytes which is the same as the
+ * PrimaryDomain when using extended security. Windows NT 4
+ * and 2003 use this string to store the native lanman string.
+ * Windows 9x does not include a string here at all so we have
+ * to check if we have any extra bytes left */
+
+ byte_count = SVAL(req->inbuf, smb_vwv13);
+ if ( PTR_DIFF(p, save_p) < byte_count) {
+ p += srvstr_pull_buf(req->inbuf, req->flags2,
+ primary_domain, p,
+ sizeof(primary_domain),
+ STR_TERMINATE);
+ } else {
fstrcpy( primary_domain, "null" );
+ }
- DEBUG(3,("Domain=[%s] NativeOS=[%s] NativeLanMan=[%s] PrimaryDomain=[%s]\n",
- domain, native_os, native_lanman, primary_domain));
+ DEBUG(3,("Domain=[%s] NativeOS=[%s] NativeLanMan=[%s] "
+ "PrimaryDomain=[%s]\n",
+ domain, native_os, native_lanman, primary_domain));
if ( ra_type == RA_WIN2K ) {
if ( strlen(native_lanman) == 0 )
}
- if (SVAL(inbuf,smb_vwv4) == 0) {
+ if (SVAL(req->inbuf,smb_vwv4) == 0) {
setup_new_vc_session();
}
- DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n", domain, user, get_remote_machine_name()));
+ DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n",
+ domain, user, get_remote_machine_name()));
if (*user) {
if (global_spnego_negotiated) {
-
- /* This has to be here, because this is a perfectly valid behaviour for guest logons :-( */
-
- DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt at 'normal' session setup after negotiating spnego.\n"));
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+
+ /* This has to be here, because this is a perfectly
+ * valid behaviour for guest logons :-( */
+
+ DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt "
+ "at 'normal' session setup after "
+ "negotiating spnego.\n"));
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
fstrcpy(sub_user, user);
} else {
sub_set_smb_name(sub_user);
reload_services(True);
-
+
if (lp_security() == SEC_SHARE) {
/* in share level we should ignore any passwords */
map_username(sub_user);
add_session_user(sub_user);
+ add_session_workgroup(domain);
/* Then force it to null for the benfit of the code below */
*user = 0;
}
-
+
if (!*user) {
nt_status = check_guest_password(&server_info);
} else if (doencrypt) {
if (!negprot_global_auth_context) {
- DEBUG(0, ("reply_sesssetup_and_X: Attempted encrypted session setup without negprot denied!\n"));
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ DEBUG(0, ("reply_sesssetup_and_X: Attempted encrypted "
+ "session setup without negprot denied!\n"));
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
- nt_status = make_user_info_for_reply_enc(&user_info, user, domain,
- lm_resp, nt_resp);
+ nt_status = make_user_info_for_reply_enc(&user_info, user,
+ domain,
+ lm_resp, nt_resp);
if (NT_STATUS_IS_OK(nt_status)) {
- nt_status = negprot_global_auth_context->check_ntlm_password(negprot_global_auth_context,
- user_info,
- &server_info);
+ nt_status = negprot_global_auth_context->check_ntlm_password(
+ negprot_global_auth_context,
+ user_info,
+ &server_info);
}
} else {
struct auth_context *plaintext_auth_context = NULL;
const uint8 *chal;
- if (NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&plaintext_auth_context))) {
- chal = plaintext_auth_context->get_ntlm_challenge(plaintext_auth_context);
-
- if (!make_user_info_for_reply(&user_info,
+
+ nt_status = make_auth_context_subsystem(
+ &plaintext_auth_context);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ chal = plaintext_auth_context->get_ntlm_challenge(
+ plaintext_auth_context);
+
+ if (!make_user_info_for_reply(&user_info,
user, domain, chal,
plaintext_password)) {
nt_status = NT_STATUS_NO_MEMORY;
}
-
+
if (NT_STATUS_IS_OK(nt_status)) {
- nt_status = plaintext_auth_context->check_ntlm_password(plaintext_auth_context,
- user_info,
- &server_info);
-
- (plaintext_auth_context->free)(&plaintext_auth_context);
+ nt_status = plaintext_auth_context->check_ntlm_password(
+ plaintext_auth_context,
+ user_info,
+ &server_info);
+
+ (plaintext_auth_context->free)(
+ &plaintext_auth_context);
}
}
}
free_user_info(&user_info);
-
+
if (!NT_STATUS_IS_OK(nt_status)) {
- nt_status = do_map_to_guest(nt_status, &server_info, user, domain);
+ nt_status = do_map_to_guest(nt_status, &server_info,
+ user, domain);
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ data_blob_free(&nt_resp);
+ data_blob_free(&lm_resp);
+ data_blob_clear_free(&plaintext_password);
+ reply_nterror(req, nt_status_squash(nt_status));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
-
+
+ /* Ensure we can't possible take a code path leading to a
+ * null defref. */
+ if (!server_info) {
+ reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
+ END_PROFILE(SMBsesssetupX);
+ return;
+ }
+
+ nt_status = create_local_token(server_info);
if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(10, ("create_local_token failed: %s\n",
+ nt_errstr(nt_status)));
data_blob_free(&nt_resp);
data_blob_free(&lm_resp);
data_blob_clear_free(&plaintext_password);
- return ERROR_NT(nt_status_squash(nt_status));
+ reply_nterror(req, nt_status_squash(nt_status));
+ END_PROFILE(SMBsesssetupX);
+ return;
}
if (server_info->user_session_key.data) {
- session_key = data_blob(server_info->user_session_key.data, server_info->user_session_key.length);
+ session_key = data_blob(server_info->user_session_key.data,
+ server_info->user_session_key.length);
} else {
- session_key = data_blob(NULL, 0);
+ session_key = data_blob_null;
}
data_blob_clear_free(&plaintext_password);
-
+
/* it's ok - setup a reply */
- set_message(outbuf,3,0,True);
+ reply_outbuf(req, 3, 0);
if (Protocol >= PROTOCOL_NT1) {
- char *p = smb_buf( outbuf );
- p += add_signature( outbuf, p );
- set_message_end( outbuf, p );
+ push_signature(&req->outbuf);
/* perhaps grab OS version here?? */
}
-
+
if (server_info->guest) {
- SSVAL(outbuf,smb_vwv2,1);
+ SSVAL(req->outbuf,smb_vwv2,1);
}
/* register the name and uid as being validated, so further connections
to a uid can get through without a password, on the same VC */
- /* register_vuid keeps the server info */
- sess_vuid = register_vuid(server_info, session_key, nt_resp.data ? nt_resp : lm_resp, sub_user);
- data_blob_free(&nt_resp);
- data_blob_free(&lm_resp);
+ if (lp_security() == SEC_SHARE) {
+ sess_vuid = UID_FIELD_INVALID;
+ data_blob_free(&session_key);
+ TALLOC_FREE(server_info);
+ } else {
+ /* Ignore the initial vuid. */
+ sess_vuid = register_initial_vuid();
+ if (sess_vuid == UID_FIELD_INVALID) {
+ data_blob_free(&nt_resp);
+ data_blob_free(&lm_resp);
+ data_blob_free(&session_key);
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ END_PROFILE(SMBsesssetupX);
+ return;
+ }
+ /* register_existing_vuid keeps the server info */
+ sess_vuid = register_existing_vuid(sess_vuid,
+ server_info,
+ session_key,
+ nt_resp.data ? nt_resp : lm_resp,
+ sub_user);
+ if (sess_vuid == UID_FIELD_INVALID) {
+ data_blob_free(&nt_resp);
+ data_blob_free(&lm_resp);
+ data_blob_free(&session_key);
+ reply_nterror(req, nt_status_squash(
+ NT_STATUS_LOGON_FAILURE));
+ END_PROFILE(SMBsesssetupX);
+ return;
+ }
+
+ /* current_user_info is changed on new vuid */
+ reload_services( True );
- if (sess_vuid == -1) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ sessionsetup_start_signing_engine(server_info, req->inbuf);
}
- /* current_user_info is changed on new vuid */
- reload_services( True );
+ data_blob_free(&nt_resp);
+ data_blob_free(&lm_resp);
- if (!server_info->guest && !srv_signing_started() && !srv_check_sign_mac(inbuf, True)) {
- exit_server("reply_sesssetup_and_X: bad smb signature");
- }
+ SSVAL(req->outbuf,smb_uid,sess_vuid);
+ SSVAL(req->inbuf,smb_uid,sess_vuid);
- SSVAL(outbuf,smb_uid,sess_vuid);
- SSVAL(inbuf,smb_uid,sess_vuid);
-
if (!done_sesssetup)
max_send = MIN(max_send,smb_bufsize);
-
+
done_sesssetup = True;
-
+
END_PROFILE(SMBsesssetupX);
- return chain_reply(inbuf,outbuf,length,bufsize);
+ chain_reply(req);
+ return;
}