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-rw-r--r--source4/smbd/negprot.c526
1 files changed, 0 insertions, 526 deletions
diff --git a/source4/smbd/negprot.c b/source4/smbd/negprot.c
deleted file mode 100644
index caf3ce33b9..0000000000
--- a/source4/smbd/negprot.c
+++ /dev/null
@@ -1,526 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
- negprot reply code
- Copyright (C) Andrew Tridgell 1992-1998
-
- 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
- (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.
-*/
-
-#include "includes.h"
-
-/* initialise the auth_context for this server and return the cryptkey */
-static void get_challenge(struct server_context *smb, char buff[8])
-{
- NTSTATUS nt_status;
- const uint8 *cryptkey;
-
- /* muliple negprots are not premitted */
- if (smb->negotiate.auth_context) {
- DEBUG(3,("get challenge: is this a secondary negprot? auth_context is non-NULL!\n"));
- smb_panic("secondary negprot");
- }
-
- DEBUG(10, ("get challenge: creating negprot_global_auth_context\n"));
-
- nt_status = make_auth_context_subsystem(&smb->negotiate.auth_context);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(0, ("make_auth_context_subsystem returned %s", nt_errstr(nt_status)));
- smb_panic("cannot make_negprot_global_auth_context!\n");
- }
-
- DEBUG(10, ("get challenge: getting challenge\n"));
- cryptkey = smb->negotiate.auth_context->get_ntlm_challenge(smb->negotiate.auth_context);
- memcpy(buff, cryptkey, 8);
-}
-
-/****************************************************************************
- Reply for the core protocol.
-****************************************************************************/
-static void reply_corep(struct request_context *req, uint16 choice)
-{
- req_setup_reply(req, 1, 0);
-
- SSVAL(req->out.vwv, VWV(0), choice);
-
- req->smb->negotiate.protocol = PROTOCOL_CORE;
-
- req_send_reply(req);
-}
-
-/****************************************************************************
- Reply for the coreplus protocol.
-this is quite incomplete - we only fill in a small part of the reply, but as nobody uses
-this any more it probably doesn't matter
-****************************************************************************/
-static void reply_coreplus(struct request_context *req, uint16 choice)
-{
- uint16 raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
-
- req_setup_reply(req, 13, 0);
-
- /* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(req->out.hdr,HDR_FLG,
- CVAL(req->out.hdr, HDR_FLG) | FLAG_SUPPORT_LOCKREAD);
-
- SSVAL(req->out.vwv, VWV(0), choice);
- SSVAL(req->out.vwv, VWV(1), 0x1); /* user level security, don't encrypt */
-
- /* tell redirector we support
- readbraw and writebraw (possibly) */
- SSVAL(req->out.vwv, VWV(5), raw);
-
- req->smb->negotiate.protocol = PROTOCOL_COREPLUS;
-
- req_send_reply(req);
-}
-
-/****************************************************************************
- Reply for the lanman 1.0 protocol.
-****************************************************************************/
-static void reply_lanman1(struct request_context *req, uint16 choice)
-{
- int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
- int secword=0;
- time_t t = req->request_time.tv_sec;
-
- req->smb->negotiate.encrypted_passwords = lp_encrypted_passwords();
-
- if (lp_security() != SEC_SHARE)
- secword |= NEGOTIATE_SECURITY_USER_LEVEL;
-
- if (req->smb->negotiate.encrypted_passwords)
- secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
-
- req->smb->negotiate.protocol = PROTOCOL_LANMAN1;
-
- req_setup_reply(req, 13, req->smb->negotiate.encrypted_passwords ? 8 : 0);
-
- /* SMBlockread, SMBwritelock supported. */
- SCVAL(req->out.hdr,HDR_FLG,
- CVAL(req->out.hdr, HDR_FLG) | FLAG_SUPPORT_LOCKREAD);
-
- SSVAL(req->out.vwv, VWV(0), choice);
- SSVAL(req->out.vwv, VWV(1), secword);
- SSVAL(req->out.vwv, VWV(2), req->smb->negotiate.max_recv);
- SSVAL(req->out.vwv, VWV(3), lp_maxmux());
- SSVAL(req->out.vwv, VWV(4), 1);
- SSVAL(req->out.vwv, VWV(5), raw);
- SIVAL(req->out.vwv, VWV(6), req->smb->pid);
- put_dos_date(req->out.vwv, VWV(8), t);
- SSVAL(req->out.vwv, VWV(10), TimeDiff(t)/60);
-
- /* Create a token value and add it to the outgoing packet. */
- if (req->smb->negotiate.encrypted_passwords) {
- SSVAL(req->out.vwv, VWV(11), 8);
- get_challenge(req->smb, req->out.data);
- }
-
- req_send_reply(req);
-}
-
-/****************************************************************************
- Reply for the lanman 2.0 protocol.
-****************************************************************************/
-static void reply_lanman2(struct request_context *req, uint16 choice)
-{
- int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
- int secword=0;
- time_t t = req->request_time.tv_sec;
-
- req->smb->negotiate.encrypted_passwords = lp_encrypted_passwords();
-
- if (lp_security() != SEC_SHARE)
- secword |= NEGOTIATE_SECURITY_USER_LEVEL;
-
- if (req->smb->negotiate.encrypted_passwords)
- secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
-
- req->smb->negotiate.protocol = PROTOCOL_LANMAN2;
-
- req_setup_reply(req, 13, 0);
-
- SSVAL(req->out.vwv, VWV(0), choice);
- SSVAL(req->out.vwv, VWV(1), secword);
- SSVAL(req->out.vwv, VWV(2), req->smb->negotiate.max_recv);
- SSVAL(req->out.vwv, VWV(3), lp_maxmux());
- SSVAL(req->out.vwv, VWV(4), 1);
- SSVAL(req->out.vwv, VWV(5), raw);
- SIVAL(req->out.vwv, VWV(6), req->smb->pid);
- put_dos_date(req->out.vwv, VWV(8), t);
- SSVAL(req->out.vwv, VWV(10), TimeDiff(t)/60);
-
- /* Create a token value and add it to the outgoing packet. */
- if (req->smb->negotiate.encrypted_passwords) {
- SSVAL(req->out.vwv, VWV(11), 8);
- req_grow_data(req, 8);
- get_challenge(req->smb, req->out.data);
- }
-
- req_push_str(req, NULL, lp_workgroup(), -1, STR_TERMINATE);
-
- req_send_reply(req);
-}
-
-
-#if 0
-/****************************************************************************
- Generate the spnego negprot reply blob. Return the number of bytes used.
-****************************************************************************/
-static DATA_BLOB negprot_spnego(struct server_context *smb)
-{
- DATA_BLOB blob;
- uint8 guid[16];
- const char *OIDs_krb5[] = {OID_KERBEROS5,
- OID_KERBEROS5_OLD,
- OID_NTLMSSP,
- NULL};
- const char *OIDs_plain[] = {OID_NTLMSSP, NULL};
- char *principal;
-
- smb->negotiate.spnego_negotiated = True;
-
- memset(guid, 0, 16);
- safe_strcpy((char *)guid, lp_netbios_name(), 16);
- strlower((char *)guid);
-
-#if 0
- /* strangely enough, NT does not send the single OID NTLMSSP when
- not a ADS member, it sends no OIDs at all
-
- we can't do this until we teach our sesssion setup parser to know
- about raw NTLMSSP (clients send no ASN.1 wrapping if we do this)
- */
- if (lp_security() != SEC_ADS) {
- memcpy(p, guid, 16);
- return 16;
- }
-#endif
- if (lp_security() != SEC_ADS) {
- blob = spnego_gen_negTokenInit(guid, OIDs_plain, "NONE");
- } else {
- asprintf(&principal, "%s$@%s", guid, lp_realm());
- blob = spnego_gen_negTokenInit(guid, OIDs_krb5, principal);
- free(principal);
- }
-
- return blob;
-}
-#endif
-
-/****************************************************************************
- Reply for the nt protocol.
-****************************************************************************/
-static void reply_nt1(struct request_context *req, uint16 choice)
-{
- /* dual names + lock_and_read + nt SMBs + remote API calls */
- int capabilities;
- int secword=0;
- time_t t = req->request_time.tv_sec;
- BOOL negotiate_spnego = False;
-
- capabilities =
- CAP_NT_FIND | CAP_LOCK_AND_READ |
- CAP_LEVEL_II_OPLOCKS | CAP_NT_SMBS | CAP_RPC_REMOTE_APIS;
-
- req->smb->negotiate.encrypted_passwords = lp_encrypted_passwords();
-
- /* do spnego in user level security if the client
- supports it and we can do encrypted passwords */
-
- if (req->smb->negotiate.encrypted_passwords &&
- (lp_security() != SEC_SHARE) &&
- lp_use_spnego() &&
- (req->flags2 & FLAGS2_EXTENDED_SECURITY)) {
-/* REWRITE negotiate_spnego = True;
- capabilities |= CAP_EXTENDED_SECURITY;
-*/
- }
-
- if (lp_unix_extensions()) {
- capabilities |= CAP_UNIX;
- }
-
- if (lp_large_readwrite() && (SMB_OFF_T_BITS == 64)) {
- capabilities |= CAP_LARGE_READX | CAP_LARGE_WRITEX | CAP_W2K_SMBS;
- }
-
- if (SMB_OFF_T_BITS >= 64) {
- capabilities |= CAP_LARGE_FILES;
- }
-
- if (lp_readraw() && lp_writeraw()) {
- capabilities |= CAP_RAW_MODE;
- }
-
- /* allow for disabling unicode */
- if (lp_unicode()) {
- capabilities |= CAP_UNICODE;
- }
-
- if (lp_nt_status_support()) {
- capabilities |= CAP_STATUS32;
- }
-
- if (lp_host_msdfs()) {
- capabilities |= CAP_DFS;
- }
-
- if (lp_security() != SEC_SHARE) {
- secword |= NEGOTIATE_SECURITY_USER_LEVEL;
- }
-
- if (req->smb->negotiate.encrypted_passwords) {
- secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
- }
-
- req->smb->negotiate.protocol = PROTOCOL_NT1;
-
- req_setup_reply(req, 17, 0);
-
- SSVAL(req->out.vwv, VWV(0), choice);
- SCVAL(req->out.vwv, VWV(1), secword);
-
- /* notice the strange +1 on vwv here? That's because
- this is the one and only SMB packet that is malformed in
- the specification - all the command words after the secword
- are offset by 1 byte */
- SSVAL(req->out.vwv+1, VWV(1), lp_maxmux());
- SSVAL(req->out.vwv+1, VWV(2), 1); /* num vcs */
- SIVAL(req->out.vwv+1, VWV(3), req->smb->negotiate.max_recv);
- SIVAL(req->out.vwv+1, VWV(5), 0x10000); /* raw size. full 64k */
- SIVAL(req->out.vwv+1, VWV(7), req->smb->pid); /* session key */
- SIVAL(req->out.vwv+1, VWV(9), capabilities);
- put_long_date(req->out.vwv + VWV(11) + 1, t);
- SSVALS(req->out.vwv+1,VWV(15), TimeDiff(t)/60);
-
- if (!negotiate_spnego) {
- /* Create a token value and add it to the outgoing packet. */
- if (req->smb->negotiate.encrypted_passwords) {
- req_grow_data(req, 8);
- /* note that we do not send a challenge at all if
- we are using plaintext */
- get_challenge(req->smb, req->out.ptr);
- req->out.ptr += 8;
- SCVAL(req->out.vwv+1, VWV(16), 8);
- }
- req_push_str(req, NULL, lp_workgroup(), -1, STR_UNICODE|STR_TERMINATE|STR_NOALIGN);
- DEBUG(3,("not using SPNEGO\n"));
- } else {
-#if 0
- DATA_BLOB blob = negprot_spnego(req->smb);
-
- req_grow_data(req, blob.length);
- memcpy(req->out.ptr, blob.data, blob.length);
- DEBUG(3,("using SPNEGO\n"));
-#else
- exit_server(req->smb, "no SPNEGO please");
-#endif
- }
-
- req_send_reply(req);
-}
-
-/* these are the protocol lists used for auto architecture detection:
-
-WinNT 3.51:
-protocol [PC NETWORK PROGRAM 1.0]
-protocol [XENIX CORE]
-protocol [MICROSOFT NETWORKS 1.03]
-protocol [LANMAN1.0]
-protocol [Windows for Workgroups 3.1a]
-protocol [LM1.2X002]
-protocol [LANMAN2.1]
-protocol [NT LM 0.12]
-
-Win95:
-protocol [PC NETWORK PROGRAM 1.0]
-protocol [XENIX CORE]
-protocol [MICROSOFT NETWORKS 1.03]
-protocol [LANMAN1.0]
-protocol [Windows for Workgroups 3.1a]
-protocol [LM1.2X002]
-protocol [LANMAN2.1]
-protocol [NT LM 0.12]
-
-Win2K:
-protocol [PC NETWORK PROGRAM 1.0]
-protocol [LANMAN1.0]
-protocol [Windows for Workgroups 3.1a]
-protocol [LM1.2X002]
-protocol [LANMAN2.1]
-protocol [NT LM 0.12]
-
-OS/2:
-protocol [PC NETWORK PROGRAM 1.0]
-protocol [XENIX CORE]
-protocol [LANMAN1.0]
-protocol [LM1.2X002]
-protocol [LANMAN2.1]
-*/
-
-/*
- * Modified to recognize the architecture of the remote machine better.
- *
- * This appears to be the matrix of which protocol is used by which
- * MS product.
- Protocol WfWg Win95 WinNT Win2K OS/2
- PC NETWORK PROGRAM 1.0 1 1 1 1 1
- XENIX CORE 2 2
- MICROSOFT NETWORKS 3.0 2 2
- DOS LM1.2X002 3 3
- MICROSOFT NETWORKS 1.03 3
- DOS LANMAN2.1 4 4
- LANMAN1.0 4 2 3
- Windows for Workgroups 3.1a 5 5 5 3
- LM1.2X002 6 4 4
- LANMAN2.1 7 5 5
- NT LM 0.12 6 8 6
- *
- * tim@fsg.com 09/29/95
- * Win2K added by matty 17/7/99
- */
-
-#define ARCH_WFWG 0x3 /* This is a fudge because WfWg is like Win95 */
-#define ARCH_WIN95 0x2
-#define ARCH_WINNT 0x4
-#define ARCH_WIN2K 0xC /* Win2K is like NT */
-#define ARCH_OS2 0x14 /* Again OS/2 is like NT */
-#define ARCH_SAMBA 0x20
-
-#define ARCH_ALL 0x3F
-
-/* List of supported protocols, most desired first */
-static const struct {
- const char *proto_name;
- const char *short_name;
- void (*proto_reply_fn)(struct request_context *req, uint16 choice);
- int protocol_level;
-} supported_protocols[] = {
- {"NT LANMAN 1.0", "NT1", reply_nt1, PROTOCOL_NT1},
- {"NT LM 0.12", "NT1", reply_nt1, PROTOCOL_NT1},
- {"LM1.2X002", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
- {"Samba", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
- {"DOS LM1.2X002", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
- {"LANMAN1.0", "LANMAN1", reply_lanman1, PROTOCOL_LANMAN1},
- {"MICROSOFT NETWORKS 3.0", "LANMAN1", reply_lanman1, PROTOCOL_LANMAN1},
- {"MICROSOFT NETWORKS 1.03", "COREPLUS", reply_coreplus, PROTOCOL_COREPLUS},
- {"PC NETWORK PROGRAM 1.0", "CORE", reply_corep, PROTOCOL_CORE},
- {NULL,NULL,NULL,0},
-};
-
-/****************************************************************************
- Reply to a negprot.
-****************************************************************************/
-
-void reply_negprot(struct request_context *req)
-{
- int Index=0;
- int choice = -1;
- int protocol;
- char *p;
- int arch = ARCH_ALL;
-
- if (req->smb->negotiate.done_negprot) {
- exit_server(req->smb, "multiple negprot's are not permitted");
- }
- req->smb->negotiate.done_negprot = True;
-
- p = req->in.data + 1;
-
- while (p < req->in.data + req->in.data_size) {
- Index++;
- DEBUG(3,("Requested protocol [%s]\n",p));
- if (strcmp(p,"Windows for Workgroups 3.1a") == 0)
- arch &= ( ARCH_WFWG | ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K );
- else if (strcmp(p,"DOS LM1.2X002") == 0)
- arch &= ( ARCH_WFWG | ARCH_WIN95 );
- else if (strcmp(p,"DOS LANMAN2.1") == 0)
- arch &= ( ARCH_WFWG | ARCH_WIN95 );
- else if (strcmp(p,"NT LM 0.12") == 0)
- arch &= ( ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K );
- else if (strcmp(p,"LANMAN2.1") == 0)
- arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
- else if (strcmp(p,"LM1.2X002") == 0)
- arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
- else if (strcmp(p,"MICROSOFT NETWORKS 1.03") == 0)
- arch &= ARCH_WINNT;
- else if (strcmp(p,"XENIX CORE") == 0)
- arch &= ( ARCH_WINNT | ARCH_OS2 );
- else if (strcmp(p,"Samba") == 0) {
- arch = ARCH_SAMBA;
- break;
- }
-
- p += strlen(p) + 2;
- }
-
- switch (arch) {
- case ARCH_SAMBA:
- set_remote_arch(req->smb, RA_SAMBA);
- break;
- case ARCH_WFWG:
- set_remote_arch(req->smb, RA_WFWG);
- break;
- case ARCH_WIN95:
- set_remote_arch(req->smb, RA_WIN95);
- break;
- case ARCH_WINNT:
- if (req->flags2==FLAGS2_WIN2K_SIGNATURE)
- set_remote_arch(req->smb, RA_WIN2K);
- else
- set_remote_arch(req->smb, RA_WINNT);
- break;
- case ARCH_WIN2K:
- set_remote_arch(req->smb, RA_WIN2K);
- break;
- case ARCH_OS2:
- set_remote_arch(req->smb, RA_OS2);
- break;
- default:
- set_remote_arch(req->smb, RA_UNKNOWN);
- break;
- }
-
- /* possibly reload - change of architecture */
- reload_services(req->smb, True);
-
- /* Check for protocols, most desirable first */
- for (protocol = 0; supported_protocols[protocol].proto_name; protocol++) {
- p = req->in.data+1;
- Index = 0;
- if ((supported_protocols[protocol].protocol_level <= lp_maxprotocol()) &&
- (supported_protocols[protocol].protocol_level >= lp_minprotocol()))
- while (p < (req->in.data + req->in.data_size)) {
- if (strequal(p,supported_protocols[protocol].proto_name))
- choice = Index;
- Index++;
- p += strlen(p) + 2;
- }
- if(choice != -1)
- break;
- }
-
- if(choice != -1) {
- sub_set_remote_proto(supported_protocols[protocol].short_name);
- reload_services(req->smb, True);
- supported_protocols[protocol].proto_reply_fn(req, choice);
- DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
- } else {
- DEBUG(0,("No protocol supported !\n"));
- }
-
- DEBUG(5,("negprot index=%d\n", choice));
-}
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