handle SMBsessionsetup
Copyright (C) Andrew Tridgell 1998-2001
Copyright (C) Andrew Bartlett 2001
+ Copyright (C) Jim McDonough 2002
+ Copyright (C) Luke Howard 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "includes.h"
uint32 global_client_caps = 0;
-static struct auth_context *ntlmssp_auth_context = NULL;
+
+static struct auth_ntlmssp_state *global_ntlmssp_state;
/*
on a logon error possibly map the error to success if "map to guest"
(lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD)) {
DEBUG(3,("No such user %s [%s] - using guest account\n",
user, domain));
- make_server_info_guest(server_info);
- status = NT_STATUS_OK;
+ status = make_server_info_guest(server_info);
}
}
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));
- make_server_info_guest(server_info);
- status = NT_STATUS_OK;
+ status = make_server_info_guest(server_info);
}
}
return status;
}
-
/****************************************************************************
Add the standard 'Samba' signature to the end of the session setup.
****************************************************************************/
-static void add_signature(char *outbuf)
+
+static int add_signature(char *outbuf, char *p)
{
- char *p;
- p = smb_buf(outbuf);
+ char *start = p;
+ fstring lanman;
+
+ snprintf( lanman, sizeof(lanman), "Samba %s", VERSION );
+
p += srvstr_push(outbuf, p, "Unix", -1, STR_TERMINATE);
- p += srvstr_push(outbuf, p, "Samba", -1, STR_TERMINATE);
+ p += srvstr_push(outbuf, p, lanman, -1, STR_TERMINATE);
p += srvstr_push(outbuf, p, lp_workgroup(), -1, STR_TERMINATE);
+
+ return PTR_DIFF(p, start);
+}
+
+/****************************************************************************
+ Send a security blob via a session setup reply.
+****************************************************************************/
+
+static BOOL reply_sesssetup_blob(connection_struct *conn, char *outbuf,
+ DATA_BLOB blob, NTSTATUS nt_status)
+{
+ 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;
+
+ p += add_signature( outbuf, p );
+
set_message_end(outbuf,p);
+
+ return send_smb(smbd_server_fd(),outbuf);
}
/****************************************************************************
Do a 'guest' logon, getting back the
****************************************************************************/
+
static NTSTATUS check_guest_password(auth_serversupplied_info **server_info)
{
struct auth_context *auth_context;
int sess_vuid;
NTSTATUS ret;
DATA_BLOB auth_data;
+ DATA_BLOB ap_rep, ap_rep_wrapped, response;
auth_serversupplied_info *server_info = NULL;
ADS_STRUCT *ads;
+ uint8 session_key[16];
+ uint8 tok_id[2];
+ BOOL foreign = False;
+
+ ZERO_STRUCT(ticket);
+ ZERO_STRUCT(auth_data);
+ ZERO_STRUCT(ap_rep);
+ ZERO_STRUCT(ap_rep_wrapped);
+ ZERO_STRUCT(response);
- if (!spnego_parse_krb5_wrap(*secblob, &ticket)) {
+ if (!spnego_parse_krb5_wrap(*secblob, &ticket, tok_id)) {
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
ads->auth.realm = strdup(lp_realm());
- ret = ads_verify_ticket(ads, &ticket, &client, &auth_data);
+ ret = ads_verify_ticket(ads, &ticket, &client, &auth_data, &ap_rep, session_key);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(1,("Failed to verify incoming ticket!\n"));
ads_destroy(&ads);
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
+ data_blob_free(&auth_data);
+
DEBUG(3,("Ticket name is [%s]\n", client));
p = strchr_m(client, '@');
if (!p) {
DEBUG(3,("Doesn't look like a valid principal\n"));
ads_destroy(&ads);
+ data_blob_free(&ap_rep);
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
if (strcasecmp(p+1, ads->auth.realm) != 0) {
DEBUG(3,("Ticket for foreign realm %s@%s\n", client, p+1));
if (!lp_allow_trusted_domains()) {
+ data_blob_free(&ap_rep);
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
- /* this gives a fully qualified user name (ie. with full realm).
- that leads to very long usernames, but what else can we do? */
- asprintf(&user, "%s%s%s", p+1, lp_winbind_separator(), client);
- } else {
- user = strdup(client);
+ foreign = True;
}
- ads_destroy(&ads);
- /* the password is good - let them in */
- pw = smb_getpwnam(user,False);
- if (!pw && !strstr(user, lp_winbind_separator())) {
- char *user2;
- /* try it with a winbind domain prefix */
- asprintf(&user2, "%s%s%s", lp_workgroup(), lp_winbind_separator(), user);
- pw = smb_getpwnam(user2,False);
- if (pw) {
- free(user);
- user = user2;
- }
+ /* this gives a fully qualified user name (ie. with full realm).
+ that leads to very long usernames, but what else can we do? */
+ asprintf(&user, "%s%s%s", p+1, lp_winbind_separator(), client);
+
+ pw = Get_Pwnam(user);
+ if (!pw && !foreign) {
+ pw = Get_Pwnam(client);
+ SAFE_FREE(user);
+ user = smb_xstrdup(client);
}
+ ads_destroy(&ads);
+
+ /* setup the string used by %U */
+ sub_set_smb_name(user);
+
+ reload_services(True);
+
if (!pw) {
DEBUG(1,("Username %s is invalid on this system\n",user));
+ data_blob_free(&ap_rep);
return ERROR_NT(NT_STATUS_NO_SUCH_USER);
}
- if (!make_server_info_pw(&server_info,pw)) {
+ if (!NT_STATUS_IS_OK(ret = make_server_info_pw(&server_info,pw))) {
DEBUG(1,("make_server_info_from_pw failed!\n"));
- return ERROR_NT(NT_STATUS_NO_MEMORY);
+ data_blob_free(&ap_rep);
+ return ERROR_NT(ret);
}
-
+
+ /* Copy out the session key from the AP_REQ. */
+ memcpy(server_info->session_key, session_key, sizeof(session_key));
+
+ /* register_vuid keeps the server info */
sess_vuid = register_vuid(server_info, user);
free(user);
- free_server_info(&server_info);
if (sess_vuid == -1) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ ret = NT_STATUS_LOGON_FAILURE;
+ } else {
+ 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);
}
- set_message(outbuf,4,0,True);
- SSVAL(outbuf, smb_vwv3, 0);
- add_signature(outbuf);
-
- SSVAL(outbuf,smb_uid,sess_vuid);
- SSVAL(inbuf,smb_uid,sess_vuid);
-
- return chain_reply(inbuf,outbuf,length,bufsize);
+ /* 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);
+ } else {
+ ap_rep_wrapped = data_blob(NULL, 0);
+ }
+ response = spnego_gen_auth_response(&ap_rep_wrapped, ret, OID_KERBEROS5_OLD);
+ reply_sesssetup_blob(conn, outbuf, response, ret);
+
+ data_blob_free(&ap_rep);
+ data_blob_free(&ap_rep_wrapped);
+ data_blob_free(&response);
+
+ return -1; /* already replied */
}
#endif
-
/****************************************************************************
-send a security blob via a session setup reply
-****************************************************************************/
-static BOOL reply_sesssetup_blob(connection_struct *conn, char *outbuf,
- DATA_BLOB blob)
+ Send a session setup reply, wrapped in SPNEGO.
+ Get vuid and check first.
+ End the NTLMSSP exchange context if we are OK/complete fail
+***************************************************************************/
+
+static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *outbuf,
+ AUTH_NTLMSSP_STATE **auth_ntlmssp_state,
+ DATA_BLOB *ntlmssp_blob, NTSTATUS nt_status)
{
- char *p;
+ BOOL ret;
+ DATA_BLOB response;
+ struct auth_serversupplied_info *server_info = NULL;
- set_message(outbuf,4,0,True);
+ 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);
+ }
- /* we set NT_STATUS_MORE_PROCESSING_REQUIRED to tell the other end
- that we aren't finished yet */
+ if (NT_STATUS_IS_OK(nt_status)) {
+ int sess_vuid;
+ /* register_vuid keeps the server info */
+ sess_vuid = register_vuid(server_info, (*auth_ntlmssp_state)->ntlmssp_state->user);
+ (*auth_ntlmssp_state)->server_info = NULL;
- SIVAL(outbuf, smb_rcls, NT_STATUS_V(NT_STATUS_MORE_PROCESSING_REQUIRED));
- SSVAL(outbuf, smb_vwv0, 0xFF); /* no chaining possible */
- SSVAL(outbuf, smb_vwv3, blob.length);
- p = smb_buf(outbuf);
- memcpy(p, blob.data, blob.length);
- p += blob.length;
- p += srvstr_push(outbuf, p, "Unix", -1, STR_TERMINATE);
- p += srvstr_push(outbuf, p, "Samba", -1, STR_TERMINATE);
- p += srvstr_push(outbuf, p, lp_workgroup(), -1, STR_TERMINATE);
- set_message_end(outbuf,p);
-
- return send_smb(smbd_server_fd(),outbuf);
+ if (sess_vuid == -1) {
+ nt_status = NT_STATUS_LOGON_FAILURE;
+ } else {
+
+ 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);
+ }
+ }
+
+ response = spnego_gen_auth_response(ntlmssp_blob, nt_status, OID_NTLMSSP);
+ ret = reply_sesssetup_blob(conn, outbuf, response, nt_status);
+ 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)) {
+ auth_ntlmssp_end(auth_ntlmssp_state);
+ }
+
+ return ret;
}
/****************************************************************************
-reply to a session setup spnego negotiate packet
+ Reply to a session setup spnego negotiate packet.
****************************************************************************/
+
static int reply_spnego_negotiate(connection_struct *conn,
char *inbuf,
char *outbuf,
char *OIDs[ASN1_MAX_OIDS];
DATA_BLOB secblob;
int i;
- uint32 ntlmssp_command, neg_flags, chal_flags;
- DATA_BLOB chal, spnego_chal, extra_data;
- const uint8 *cryptkey;
+ DATA_BLOB chal;
BOOL got_kerberos = False;
NTSTATUS nt_status;
- extern pstring global_myname;
/* parse out the OIDs and the first sec blob */
if (!parse_negTokenTarg(blob1, OIDs, &secblob)) {
DEBUG(3,("Got secblob of size %d\n", secblob.length));
#ifdef HAVE_KRB5
- if (got_kerberos) {
+ if (got_kerberos && (SEC_ADS == lp_security())) {
int ret = reply_spnego_kerberos(conn, inbuf, outbuf,
length, bufsize, &secblob);
data_blob_free(&secblob);
}
#endif
- /* parse the NTLMSSP packet */
-#if 0
- file_save("secblob.dat", secblob.data, secblob.length);
-#endif
-
- if (!msrpc_parse(&secblob, "CddB",
- "NTLMSSP",
- &ntlmssp_command,
- &neg_flags,
- &extra_data)) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
- DEBUG(5, ("Extra data: \n"));
- dump_data(5, extra_data.data, extra_data.length);
-
- data_blob_free(&secblob);
- data_blob_free(&extra_data);
-
- if (ntlmssp_command != NTLMSSP_NEGOTIATE) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
- DEBUG(3,("Got neg_flags=0x%08x\n", neg_flags));
-
- debug_ntlmssp_flags(neg_flags);
-
- if (ntlmssp_auth_context) {
- (ntlmssp_auth_context->free)(&ntlmssp_auth_context);
+ if (global_ntlmssp_state) {
+ auth_ntlmssp_end(&global_ntlmssp_state);
}
- if (!NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&ntlmssp_auth_context))) {
+ nt_status = auth_ntlmssp_start(&global_ntlmssp_state);
+ if (!NT_STATUS_IS_OK(nt_status)) {
return ERROR_NT(nt_status);
}
- cryptkey = ntlmssp_auth_context->get_ntlm_challenge(ntlmssp_auth_context);
+ nt_status = auth_ntlmssp_update(global_ntlmssp_state,
+ secblob, &chal);
- /* Give them the challenge. For now, ignore neg_flags and just
- return the flags we want. Obviously this is not correct */
-
- chal_flags = NTLMSSP_NEGOTIATE_UNICODE |
- NTLMSSP_NEGOTIATE_LM_KEY |
- NTLMSSP_NEGOTIATE_NTLM |
- NTLMSSP_CHAL_TARGET_INFO;
-
- {
- DATA_BLOB domain_blob, netbios_blob, realm_blob;
-
- msrpc_gen(&domain_blob,
- "U",
- lp_workgroup());
+ data_blob_free(&secblob);
- msrpc_gen(&netbios_blob,
- "U",
- global_myname);
-
- msrpc_gen(&realm_blob,
- "U",
- lp_realm());
+ reply_spnego_ntlmssp(conn, outbuf, &global_ntlmssp_state,
+ &chal, nt_status);
-
- msrpc_gen(&chal, "CddddbBBBB",
- "NTLMSSP",
- NTLMSSP_CHALLENGE,
- 0,
- 0x30, /* ?? */
- chal_flags,
- cryptkey, 8,
- domain_blob.data, domain_blob.length,
- domain_blob.data, domain_blob.length,
- netbios_blob.data, netbios_blob.length,
- realm_blob.data, realm_blob.length);
-
- data_blob_free(&domain_blob);
- data_blob_free(&netbios_blob);
- data_blob_free(&realm_blob);
- }
-
- if (!spnego_gen_challenge(&spnego_chal, &chal, &chal)) {
- DEBUG(3,("Failed to generate challenge\n"));
- data_blob_free(&chal);
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
- /* now tell the client to send the auth packet */
- reply_sesssetup_blob(conn, outbuf, spnego_chal);
-
data_blob_free(&chal);
- data_blob_free(&spnego_chal);
- /* and tell smbd that we have already replied to this packet */
+ /* already replied */
return -1;
}
-
/****************************************************************************
-reply to a session setup spnego auth packet
+ Reply to a session setup spnego auth packet.
****************************************************************************/
+
static int reply_spnego_auth(connection_struct *conn, char *inbuf, char *outbuf,
int length, int bufsize,
DATA_BLOB blob1)
{
- DATA_BLOB auth;
- char *workgroup = NULL, *user = NULL, *machine = NULL;
- DATA_BLOB lmhash, nthash, sess_key;
- DATA_BLOB plaintext_password = data_blob(NULL, 0);
- uint32 ntlmssp_command, neg_flags;
- NTSTATUS nt_status;
- int sess_vuid;
- BOOL as_guest;
- uint32 auth_flags = AUTH_FLAG_NONE;
- auth_usersupplied_info *user_info = NULL;
- auth_serversupplied_info *server_info = NULL;
- extern fstring remote_machine;
-
- /* we must have setup the auth context by now */
- if (!ntlmssp_auth_context) {
- DEBUG(2,("ntlmssp_auth_context is NULL in reply_spnego_auth\n"));
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
+ DATA_BLOB auth, auth_reply;
+ NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
if (!spnego_parse_auth(blob1, &auth)) {
#if 0
file_save("auth.dat", blob1.data, blob1.length);
#endif
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
}
-
- /* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(&auth, "CdBBUUUBd",
- "NTLMSSP",
- &ntlmssp_command,
- &lmhash,
- &nthash,
- &workgroup,
- &user,
- &machine,
- &sess_key,
- &neg_flags)) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
- data_blob_free(&auth);
- data_blob_free(&sess_key);
- DEBUG(3,("Got user=[%s] workgroup=[%s] machine=[%s] len1=%d len2=%d\n",
- user, workgroup, machine, lmhash.length, nthash.length));
-
- /* the client has given us its machine name (which we otherwise would not get on port 445).
- we need to possibly reload smb.conf if smb.conf includes depend on the machine name */
- fstrcpy(remote_machine, machine);
- reload_services(True);
-
-#if 0
- file_save("nthash1.dat", nthash.data, nthash.length);
- file_save("lmhash1.dat", lmhash.data, lmhash.length);
-#endif
-
- if (lmhash.length) {
- auth_flags |= AUTH_FLAG_LM_RESP;
+ if (!global_ntlmssp_state) {
+ /* auth before negotiatiate? */
+ return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
}
-
- if (nthash.length == 24) {
- auth_flags |= AUTH_FLAG_NTLM_RESP;
- } else if (nthash.length > 24) {
- auth_flags |= AUTH_FLAG_NTLMv2_RESP;
- }
-
- if (!make_user_info_map(&user_info,
- user, workgroup,
- machine,
- lmhash, nthash,
- plaintext_password,
- auth_flags, True)) {
- return ERROR_NT(NT_STATUS_NO_MEMORY);
- }
-
- nt_status = ntlmssp_auth_context->check_ntlm_password(ntlmssp_auth_context, user_info, &server_info);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- nt_status = do_map_to_guest(nt_status, &server_info, user, workgroup);
- }
-
- SAFE_FREE(workgroup);
- SAFE_FREE(machine);
-
- (ntlmssp_auth_context->free)(&ntlmssp_auth_context);
-
- free_user_info(&user_info);
-
- data_blob_free(&lmhash);
- data_blob_free(&nthash);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- SAFE_FREE(user);
- return ERROR_NT(nt_status_squash(nt_status));
- }
-
- as_guest = server_info->guest;
-
- sess_vuid = register_vuid(server_info, user);
- free_server_info(&server_info);
+ nt_status = auth_ntlmssp_update(global_ntlmssp_state,
+ auth, &auth_reply);
- SAFE_FREE(user);
-
- if (sess_vuid == -1) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
- set_message(outbuf,4,0,True);
- SSVAL(outbuf, smb_vwv3, 0);
+ data_blob_free(&auth);
- if (as_guest) {
- SSVAL(outbuf,smb_vwv2,1);
- }
+ reply_spnego_ntlmssp(conn, outbuf, &global_ntlmssp_state,
+ &auth_reply, nt_status);
+
+ data_blob_free(&auth_reply);
- add_signature(outbuf);
-
- SSVAL(outbuf,smb_uid,sess_vuid);
- SSVAL(inbuf,smb_uid,sess_vuid);
-
- return chain_reply(inbuf,outbuf,length,bufsize);
+ /* and tell smbd that we have already replied to this packet */
+ return -1;
}
-
/****************************************************************************
-reply to a session setup spnego anonymous packet
+ Reply to a session setup command.
****************************************************************************/
-static int reply_spnego_anonymous(connection_struct *conn, char *inbuf, char *outbuf,
- int length, int bufsize)
-{
- int sess_vuid;
- auth_serversupplied_info *server_info = NULL;
- NTSTATUS nt_status;
-
- nt_status = check_guest_password(&server_info);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- return ERROR_NT(nt_status_squash(nt_status));
- }
-
- sess_vuid = register_vuid(server_info, lp_guestaccount());
-
- free_server_info(&server_info);
-
- if (sess_vuid == -1) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
- set_message(outbuf,4,0,True);
- SSVAL(outbuf, smb_vwv3, 0);
- add_signature(outbuf);
-
- SSVAL(outbuf,smb_uid,sess_vuid);
- SSVAL(inbuf,smb_uid,sess_vuid);
-
- return chain_reply(inbuf,outbuf,length,bufsize);
-}
-
-/****************************************************************************
-reply to a session setup command
-****************************************************************************/
-static int reply_sesssetup_and_X_spnego(connection_struct *conn, char *inbuf,char *outbuf,
+static int reply_sesssetup_and_X_spnego(connection_struct *conn, char *inbuf,
+ char *outbuf,
int length,int bufsize)
{
uint8 *p;
DATA_BLOB blob1;
int ret;
+ size_t bufrem;
+ fstring native_os, native_lanman;
+ char *p2;
+ uint16 data_blob_len = SVAL(inbuf, smb_vwv7);
+ enum remote_arch_types ra_type = get_remote_arch();
DEBUG(3,("Doing spnego session setup\n"));
p = (uint8 *)smb_buf(inbuf);
- if (SVAL(inbuf, smb_vwv7) == 0) {
- /* an anonymous request */
- return reply_spnego_anonymous(conn, inbuf, outbuf, length, bufsize);
+ if (data_blob_len == 0) {
+ /* an invalid request */
+ return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
+ bufrem = smb_bufrem(inbuf, p);
/* pull the spnego blob */
- blob1 = data_blob(p, SVAL(inbuf, smb_vwv7));
+ blob1 = data_blob(p, MIN(bufrem, data_blob_len));
#if 0
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);
+ DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s]\n", native_os, native_lanman));
+
+ if ( ra_type == RA_WIN2K )
+ ra_lanman_string( native_lanman );
+
if (blob1.data[0] == ASN1_APPLICATION(0)) {
/* its a negTokenTarg packet */
ret = reply_spnego_negotiate(conn, inbuf, outbuf, length, bufsize, blob1);
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
+/****************************************************************************
+ On new VC == 0, shutdown *all* old connections and users.
+ It seems that only NT4.x does this. At W2K and above (XP etc.).
+ a new session setup with VC==0 is ignored.
+****************************************************************************/
+
+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"));
+#if 0
+ conn_close_all();
+ invalidate_all_vuids();
+#endif
+}
/****************************************************************************
-reply to a session setup command
+ Reply to a session setup command.
****************************************************************************/
+
int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
int length,int bufsize)
{
DATA_BLOB lm_resp;
DATA_BLOB nt_resp;
DATA_BLOB plaintext_password;
- pstring user;
- pstring sub_user; /* Sainitised username for substituion */
+ fstring user;
+ fstring sub_user; /* Sainitised username for substituion */
fstring domain;
fstring native_os;
fstring native_lanman;
extern BOOL global_encrypted_passwords_negotiated;
extern BOOL global_spnego_negotiated;
extern int Protocol;
- extern fstring remote_machine;
- extern userdom_struct current_user_info;
extern int max_send;
auth_usersupplied_info *user_info = NULL;
NTSTATUS nt_status;
BOOL doencrypt = global_encrypted_passwords_negotiated;
-
+
START_PROFILE(SMBsesssetupX);
ZERO_STRUCT(lm_resp);
return ERROR_NT(NT_STATUS_UNSUCCESSFUL);
}
+ if (SVAL(inbuf,smb_vwv4) == 0) {
+ setup_new_vc_session();
+ }
return reply_sesssetup_and_X_spnego(conn, inbuf, outbuf, length, bufsize);
}
srvstr_pull_buf(inbuf, user, smb_buf(inbuf)+passlen1, sizeof(user), STR_TERMINATE);
*domain = 0;
-
+
} else {
uint16 passlen1 = SVAL(inbuf,smb_vwv7);
uint16 passlen2 = SVAL(inbuf,smb_vwv8);
set_remote_arch( RA_WIN95);
}
}
-
+
if (!doencrypt) {
/* both Win95 and WinNT stuff up the password lengths for
non-encrypting systems. Uggh.
nt_resp = data_blob(p+passlen1, passlen2);
} else {
pstring pass;
+ BOOL unic;
+ unic=SVAL(inbuf, smb_flg2) & FLAGS2_UNICODE_STRINGS;
srvstr_pull(inbuf, pass, smb_buf(inbuf),
- sizeof(pass), passlen1, STR_TERMINATE);
+ sizeof(pass), unic ? passlen2 : passlen1,
+ STR_TERMINATE);
plaintext_password = data_blob(pass, strlen(pass)+1);
}
p += srvstr_pull_buf(inbuf, native_lanman, p, sizeof(native_lanman), STR_TERMINATE);
DEBUG(3,("Domain=[%s] NativeOS=[%s] NativeLanMan=[%s]\n",
domain,native_os,native_lanman));
+
+ if ( ra_type == RA_WIN2K )
+ ra_lanman_string( native_lanman );
+
}
- /* don't allow for weird usernames or domains */
- alpha_strcpy(user, user, ". _-$", sizeof(user));
- alpha_strcpy(domain, domain, ". _-", sizeof(domain));
- if (strstr(user, "..") || strstr(domain,"..")) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
+ if (SVAL(inbuf,smb_vwv4) == 0) {
+ setup_new_vc_session();
}
- DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n", domain, user, remote_machine));
+ 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, becouse this is a perfectly valid behaviour for guest logons :-( */
+ /* 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_UNSUCCESSFUL);
}
- pstrcpy(sub_user, user);
+ fstrcpy(sub_user, user);
+
+ /* setup the string used by %U */
+ sub_set_smb_name(user);
} else {
- pstrcpy(sub_user, lp_guestaccount());
+ fstrcpy(sub_user, lp_guestaccount());
}
- pstrcpy(current_user_info.smb_name,sub_user);
+ sub_set_smb_name(sub_user);
reload_services(True);
nt_status = check_guest_password(&server_info);
} else if (doencrypt) {
- if (!make_user_info_for_reply_enc(&user_info,
- user, domain,
- lm_resp, nt_resp)) {
- nt_status = NT_STATUS_NO_MEMORY;
- } else {
+ 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);
+ }
+ 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);
}
/* it's ok - setup a reply */
- if (Protocol < PROTOCOL_NT1) {
- set_message(outbuf,3,0,True);
- } else {
- set_message(outbuf,3,0,True);
- add_signature(outbuf);
+ set_message(outbuf,3,0,True);
+ if (Protocol >= PROTOCOL_NT1) {
+ char *p = smb_buf( outbuf );
+ p += add_signature( outbuf, p );
+ set_message_end( outbuf, p );
/* perhaps grab OS version here?? */
}
/* 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, sub_user);
-
- free_server_info(&server_info);
if (sess_vuid == -1) {
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
-
SSVAL(outbuf,smb_uid,sess_vuid);
SSVAL(inbuf,smb_uid,sess_vuid);
git.samba.org / gd / samba-autobuild / .git / blobdiff