/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
negprot reply code
Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Volker Lendecke 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,
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 int Protocol;
+extern fstring remote_proto;
+extern enum protocol_types Protocol;
extern int max_recv;
-extern fstring global_myworkgroup;
-extern fstring remote_machine;
-BOOL global_encrypted_passwords_negotiated = False;
-BOOL global_spnego_negotiated = False;
+
+bool global_encrypted_passwords_negotiated = False;
+bool global_spnego_negotiated = False;
struct auth_context *negprot_global_auth_context = NULL;
-static void get_challange(char buff[8])
+static void get_challenge(uint8 buff[8])
{
NTSTATUS nt_status;
const uint8 *cryptkey;
- /* We might be called more than once, muliple negprots are premitted */
+ /* We might be called more than once, multiple negprots are
+ * permitted */
if (negprot_global_auth_context) {
- DEBUG(3, ("get challange: is this a secondary negprot? negprot_global_auth_context is non-NULL!\n"));
+ DEBUG(3, ("get challenge: is this a secondary negprot? negprot_global_auth_context is non-NULL!\n"));
(negprot_global_auth_context->free)(&negprot_global_auth_context);
}
- DEBUG(10, ("get challange: creating negprot_global_auth_context\n"));
+ DEBUG(10, ("get challenge: creating negprot_global_auth_context\n"));
if (!NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&negprot_global_auth_context))) {
- DEBUG(0, ("make_auth_context_subsystem returned %s", get_nt_error_msg(nt_status)));
- smb_panic("cannot make_negprot_global_auth_context!\n");
+ DEBUG(0, ("make_auth_context_subsystem returned %s", nt_errstr(nt_status)));
+ smb_panic("cannot make_negprot_global_auth_context!");
}
- DEBUG(10, ("get challange: getting challange\n"));
+ DEBUG(10, ("get challenge: getting challenge\n"));
cryptkey = negprot_global_auth_context->get_ntlm_challenge(negprot_global_auth_context);
memcpy(buff, cryptkey, 8);
}
/****************************************************************************
-reply for the core protocol
+ Reply for the core protocol.
****************************************************************************/
-static int reply_corep(char *inbuf, char *outbuf)
+
+static void reply_corep(struct smb_request *req, uint16 choice)
{
- int outsize = set_message(outbuf,1,0,True);
+ reply_outbuf(req, 1, 0);
+ SSVAL(req->outbuf, smb_vwv0, choice);
Protocol = PROTOCOL_CORE;
-
- return outsize;
}
-
/****************************************************************************
-reply for the coreplus protocol
+ Reply for the coreplus protocol.
****************************************************************************/
-static int reply_coreplus(char *inbuf, char *outbuf)
-{
- int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
- int outsize = set_message(outbuf,13,0,True);
- SSVAL(outbuf,smb_vwv5,raw); /* tell redirector we support
- readbraw and writebraw (possibly) */
- /* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
- SSVAL(outbuf,smb_vwv1,0x1); /* user level security, don't encrypt */
-
- Protocol = PROTOCOL_COREPLUS;
- return outsize;
+static void reply_coreplus(struct smb_request *req, uint16 choice)
+{
+ int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
+
+ reply_outbuf(req, 13, 0);
+
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SSVAL(req->outbuf,smb_vwv5,raw); /* tell redirector we support
+ readbraw and writebraw (possibly) */
+ /* Reply, SMBlockread, SMBwritelock supported. */
+ SCVAL(req->outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
+ SSVAL(req->outbuf,smb_vwv1,0x1); /* user level security, don't
+ * encrypt */
+ Protocol = PROTOCOL_COREPLUS;
}
-
/****************************************************************************
-reply for the lanman 1.0 protocol
+ Reply for the lanman 1.0 protocol.
****************************************************************************/
-static int reply_lanman1(char *inbuf, char *outbuf)
+
+static void reply_lanman1(struct smb_request *req, uint16 choice)
{
- int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
- int secword=0;
- time_t t = time(NULL);
+ int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
+ int secword=0;
+ time_t t = time(NULL);
- global_encrypted_passwords_negotiated = lp_encrypted_passwords();
+ global_encrypted_passwords_negotiated = lp_encrypted_passwords();
- if (lp_security()>=SEC_USER) secword |= 1;
- if (global_encrypted_passwords_negotiated) secword |= 2;
+ if (lp_security()>=SEC_USER)
+ secword |= NEGOTIATE_SECURITY_USER_LEVEL;
+ if (global_encrypted_passwords_negotiated)
+ secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
- set_message(outbuf,13,global_encrypted_passwords_negotiated?8:0,True);
- SSVAL(outbuf,smb_vwv1,secword);
- /* Create a token value and add it to the outgoing packet. */
- if (global_encrypted_passwords_negotiated) {
- get_challange(smb_buf(outbuf));
- }
+ reply_outbuf(req, 13, global_encrypted_passwords_negotiated?8:0);
- Protocol = PROTOCOL_LANMAN1;
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SSVAL(req->outbuf,smb_vwv1,secword);
+ /* Create a token value and add it to the outgoing packet. */
+ if (global_encrypted_passwords_negotiated) {
+ get_challenge((uint8 *)smb_buf(req->outbuf));
+ SSVAL(req->outbuf,smb_vwv11, 8);
+ }
- /* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
- SSVAL(outbuf,smb_vwv2,max_recv);
- SSVAL(outbuf,smb_vwv3,lp_maxmux()); /* maxmux */
- SSVAL(outbuf,smb_vwv4,1);
- SSVAL(outbuf,smb_vwv5,raw); /* tell redirector we support
- readbraw writebraw (possibly) */
- SIVAL(outbuf,smb_vwv6,sys_getpid());
- SSVAL(outbuf,smb_vwv10, TimeDiff(t)/60);
+ Protocol = PROTOCOL_LANMAN1;
- put_dos_date(outbuf,smb_vwv8,t);
+ /* Reply, SMBlockread, SMBwritelock supported. */
+ SCVAL(req->outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
+ SSVAL(req->outbuf,smb_vwv2,max_recv);
+ SSVAL(req->outbuf,smb_vwv3,lp_maxmux()); /* maxmux */
+ SSVAL(req->outbuf,smb_vwv4,1);
+ SSVAL(req->outbuf,smb_vwv5,raw); /* tell redirector we support
+ readbraw writebraw (possibly) */
+ SIVAL(req->outbuf,smb_vwv6,sys_getpid());
+ SSVAL(req->outbuf,smb_vwv10, set_server_zone_offset(t)/60);
- return (smb_len(outbuf)+4);
-}
+ srv_put_dos_date((char *)req->outbuf,smb_vwv8,t);
+ return;
+}
/****************************************************************************
-reply for the lanman 2.0 protocol
+ Reply for the lanman 2.0 protocol.
****************************************************************************/
-static int reply_lanman2(char *inbuf, char *outbuf)
+
+static void reply_lanman2(struct smb_request *req, uint16 choice)
{
- int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
- int secword=0;
- time_t t = time(NULL);
+ int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
+ int secword=0;
+ time_t t = time(NULL);
- global_encrypted_passwords_negotiated = lp_encrypted_passwords();
+ global_encrypted_passwords_negotiated = lp_encrypted_passwords();
- if (lp_security()>=SEC_USER) secword |= 1;
- if (global_encrypted_passwords_negotiated) secword |= 2;
-
- set_message(outbuf,13,global_encrypted_passwords_negotiated?8:0,True);
- SSVAL(outbuf,smb_vwv1,secword);
- SIVAL(outbuf,smb_vwv6,sys_getpid());
-
- /* Create a token value and add it to the outgoing packet. */
- if (global_encrypted_passwords_negotiated) {
- get_challange(smb_buf(outbuf));
- }
-
- Protocol = PROTOCOL_LANMAN2;
-
- /* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
- SSVAL(outbuf,smb_vwv2,max_recv);
- SSVAL(outbuf,smb_vwv3,lp_maxmux());
- SSVAL(outbuf,smb_vwv4,1);
- SSVAL(outbuf,smb_vwv5,raw); /* readbraw and/or writebraw */
- SSVAL(outbuf,smb_vwv10, TimeDiff(t)/60);
- put_dos_date(outbuf,smb_vwv8,t);
-
- return (smb_len(outbuf)+4);
-}
+ if (lp_security()>=SEC_USER)
+ secword |= NEGOTIATE_SECURITY_USER_LEVEL;
+ if (global_encrypted_passwords_negotiated)
+ secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
+ reply_outbuf(req, 13, global_encrypted_passwords_negotiated?8:0);
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SSVAL(req->outbuf,smb_vwv1,secword);
+ SIVAL(req->outbuf,smb_vwv6,sys_getpid());
-/*
- generate the spnego negprot reply blob. Return the number of bytes used
-*/
-static int negprot_spnego(char *p)
+ /* Create a token value and add it to the outgoing packet. */
+ if (global_encrypted_passwords_negotiated) {
+ get_challenge((uint8 *)smb_buf(req->outbuf));
+ SSVAL(req->outbuf,smb_vwv11, 8);
+ }
+
+ Protocol = PROTOCOL_LANMAN2;
+
+ /* Reply, SMBlockread, SMBwritelock supported. */
+ SCVAL(req->outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
+ SSVAL(req->outbuf,smb_vwv2,max_recv);
+ SSVAL(req->outbuf,smb_vwv3,lp_maxmux());
+ SSVAL(req->outbuf,smb_vwv4,1);
+ SSVAL(req->outbuf,smb_vwv5,raw); /* readbraw and/or writebraw */
+ SSVAL(req->outbuf,smb_vwv10, set_server_zone_offset(t)/60);
+ srv_put_dos_date((char *)req->outbuf,smb_vwv8,t);
+}
+
+/****************************************************************************
+ Generate the spnego negprot reply blob. Return the number of bytes used.
+****************************************************************************/
+
+static DATA_BLOB negprot_spnego(void)
{
DATA_BLOB blob;
- extern pstring global_myname;
- uint8 guid[16];
- const char *OIDs_krb5[] = {OID_NTLMSSP,
- OID_KERBEROS5,
+ nstring dos_name;
+ fstring unix_name;
+#ifdef DEVELOPER
+ size_t slen;
+#endif
+ char guid[17];
+ const char *OIDs_krb5[] = {OID_KERBEROS5,
OID_KERBEROS5_OLD,
+ OID_NTLMSSP,
NULL};
const char *OIDs_plain[] = {OID_NTLMSSP, NULL};
- char *principal;
- int len;
global_spnego_negotiated = True;
- memset(guid, 0, 16);
- safe_strcpy((char *)guid, global_myname, 16);
- strlower((char *)guid);
+ memset(guid, '\0', sizeof(guid));
+
+ safe_strcpy(unix_name, global_myname(), sizeof(unix_name)-1);
+ strlower_m(unix_name);
+ push_ascii_nstring(dos_name, unix_name);
+ safe_strcpy(guid, dos_name, sizeof(guid)-1);
+
+#ifdef DEVELOPER
+ /* Fix valgrind 'uninitialized bytes' issue. */
+ slen = strlen(dos_name);
+ if (slen < sizeof(guid)) {
+ memset(guid+slen, '\0', sizeof(guid) - slen);
+ }
+#endif
-#if 0
/* strangely enough, NT does not sent 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)
+ OLD COMMENT : "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)"
+
+ Our sessionsetup code now handles raw NTLMSSP connects, so we can go
+ back to doing what W2K3 does here. This is needed to make PocketPC 2003
+ CIFS connections work with SPNEGO. See bugzilla bugs #1828 and #3133
+ for details. JRA.
+
*/
- if (lp_security() != SEC_ADS) {
- memcpy(p, guid, 16);
- return 16;
- }
+
+ if (lp_security() != SEC_ADS && !lp_use_kerberos_keytab()) {
+#if 0
+ /* Code for PocketPC client */
+ blob = data_blob(guid, 16);
+#else
+ /* Code for standalone WXP client */
+ blob = spnego_gen_negTokenInit(guid, OIDs_plain, "NONE");
#endif
- {
- ADS_STRUCT *ads;
- ads = ads_init(NULL, NULL, NULL, NULL);
-
- /* win2000 uses host$@REALM, which we will probably use eventually,
- but for now this works */
- asprintf(&principal, "HOST/%s@%s", guid, ads->realm);
- blob = spnego_gen_negTokenInit(guid,
- lp_security()==SEC_ADS ? OIDs_krb5 : OIDs_plain,
- principal);
- free(principal);
- ads_destroy(&ads);
+ } else {
+ fstring myname;
+ char *host_princ_s = NULL;
+ name_to_fqdn(myname, global_myname());
+ strlower_m(myname);
+ if (asprintf(&host_princ_s, "cifs/%s@%s", myname, lp_realm())
+ == -1) {
+ return data_blob_null;
+ }
+ blob = spnego_gen_negTokenInit(guid, OIDs_krb5, host_princ_s);
+ SAFE_FREE(host_princ_s);
}
- memcpy(p, blob.data, blob.length);
- len = blob.length;
- data_blob_free(&blob);
- return len;
-}
-
+ return blob;
+}
/****************************************************************************
-reply for the nt protocol
+ Reply for the nt protocol.
****************************************************************************/
-static int reply_nt1(char *inbuf, char *outbuf)
+
+static void reply_nt1(struct smb_request *req, uint16 choice)
{
/* dual names + lock_and_read + nt SMBs + remote API calls */
int capabilities = CAP_NT_FIND|CAP_LOCK_AND_READ|
- CAP_LEVEL_II_OPLOCKS|CAP_STATUS32;
+ CAP_LEVEL_II_OPLOCKS;
int secword=0;
- time_t t = time(NULL);
char *p, *q;
- BOOL negotiate_spnego = False;
+ bool negotiate_spnego = False;
+ time_t t = time(NULL);
+ ssize_t ret;
global_encrypted_passwords_negotiated = lp_encrypted_passwords();
+ /* Check the flags field to see if this is Vista.
+ WinXP sets it and Vista does not. But we have to
+ distinguish from NT which doesn't set it either. */
+
+ if ( (req->flags2 & FLAGS2_EXTENDED_SECURITY) &&
+ ((req->flags2 & FLAGS2_UNKNOWN_BIT4) == 0) )
+ {
+ if (get_remote_arch() != RA_SAMBA) {
+ set_remote_arch( RA_VISTA );
+ }
+ }
+
+ reply_outbuf(req,17,0);
+
/* do spnego in user level security if the client
supports it and we can do encrypted passwords */
if (global_encrypted_passwords_negotiated &&
(lp_security() != SEC_SHARE) &&
lp_use_spnego() &&
- (SVAL(inbuf, smb_flg2) & FLAGS2_EXTENDED_SECURITY)) {
+ (req->flags2 & FLAGS2_EXTENDED_SECURITY)) {
negotiate_spnego = True;
capabilities |= CAP_EXTENDED_SECURITY;
+ add_to_common_flags2(FLAGS2_EXTENDED_SECURITY);
+ /* Ensure FLAGS2_EXTENDED_SECURITY gets set in this reply
+ (already partially constructed. */
+ SSVAL(req->outbuf, smb_flg2,
+ req->flags2 | FLAGS2_EXTENDED_SECURITY);
}
- capabilities |= CAP_NT_SMBS|CAP_RPC_REMOTE_APIS;
+ capabilities |= CAP_NT_SMBS|CAP_RPC_REMOTE_APIS|CAP_UNICODE;
+
+ if (lp_unix_extensions()) {
+ capabilities |= CAP_UNIX;
+ }
- if (lp_large_readwrite() && (SMB_OFF_T_BITS == 64)) {
+ 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) {
+ if (SMB_OFF_T_BITS == 64)
capabilities |= CAP_LARGE_FILES;
- }
-
- if (lp_readraw() && lp_writeraw()) {
+
+ 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_USER) secword |= 1;
- if (global_encrypted_passwords_negotiated) secword |= 2;
-
- set_message(outbuf,17,0,True);
+ if (lp_security() >= SEC_USER)
+ secword |= NEGOTIATE_SECURITY_USER_LEVEL;
+ if (global_encrypted_passwords_negotiated)
+ secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
- CVAL(outbuf,smb_vwv1) = secword;
+ if (lp_server_signing()) {
+ if (lp_security() >= SEC_USER) {
+ secword |= NEGOTIATE_SECURITY_SIGNATURES_ENABLED;
+ /* No raw mode with smb signing. */
+ capabilities &= ~CAP_RAW_MODE;
+ if (lp_server_signing() == Required)
+ secword |=NEGOTIATE_SECURITY_SIGNATURES_REQUIRED;
+ srv_set_signing_negotiated();
+ } else {
+ DEBUG(0,("reply_nt1: smb signing is incompatible with share level security !\n"));
+ if (lp_server_signing() == Required) {
+ exit_server_cleanly("reply_nt1: smb signing required and share level security selected.");
+ }
+ }
+ }
+
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SCVAL(req->outbuf,smb_vwv1,secword);
Protocol = PROTOCOL_NT1;
- SSVAL(outbuf,smb_vwv1+1,lp_maxmux()); /* maxmpx */
- SSVAL(outbuf,smb_vwv2+1,1); /* num vcs */
- SIVAL(outbuf,smb_vwv3+1,0xffff); /* max buffer. LOTS! */
- SIVAL(outbuf,smb_vwv5+1,0x10000); /* raw size. full 64k */
- SIVAL(outbuf,smb_vwv7+1,sys_getpid()); /* session key */
- SIVAL(outbuf,smb_vwv9+1,capabilities); /* capabilities */
- put_long_date(outbuf+smb_vwv11+1,t);
- SSVALS(outbuf,smb_vwv15+1,TimeDiff(t)/60);
+ SSVAL(req->outbuf,smb_vwv1+1,lp_maxmux()); /* maxmpx */
+ SSVAL(req->outbuf,smb_vwv2+1,1); /* num vcs */
+ SIVAL(req->outbuf,smb_vwv3+1,max_recv); /* max buffer. LOTS! */
+ SIVAL(req->outbuf,smb_vwv5+1,0x10000); /* raw size. full 64k */
+ SIVAL(req->outbuf,smb_vwv7+1,sys_getpid()); /* session key */
+ SIVAL(req->outbuf,smb_vwv9+1,capabilities); /* capabilities */
+ put_long_date((char *)req->outbuf+smb_vwv11+1,t);
+ SSVALS(req->outbuf,smb_vwv15+1,set_server_zone_offset(t)/60);
- p = q = smb_buf(outbuf);
+ p = q = smb_buf(req->outbuf);
if (!negotiate_spnego) {
/* Create a token value and add it to the outgoing packet. */
if (global_encrypted_passwords_negotiated) {
- get_challange(p);
+ uint8 chal[8];
+ /* note that we do not send a challenge at all if
+ we are using plaintext */
+ get_challenge(chal);
+ ret = message_push_blob(
+ &req->outbuf, data_blob_const(chal, sizeof(chal)));
+ if (ret == -1) {
+ DEBUG(0, ("Could not push challenge\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ SCVAL(req->outbuf, smb_vwv16+1, ret);
+ p += ret;
+ }
+ ret = message_push_string(&req->outbuf, lp_workgroup(),
+ STR_UNICODE|STR_TERMINATE
+ |STR_NOALIGN);
+ if (ret == -1) {
+ DEBUG(0, ("Could not push challenge\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
}
- SSVALS(outbuf,smb_vwv16+1,8);
- p += 8;
- p += srvstr_push(outbuf, p, global_myworkgroup, -1,
- STR_UNICODE|STR_TERMINATE|STR_NOALIGN);
DEBUG(3,("not using SPNEGO\n"));
} else {
- int len = negprot_spnego(p);
-
- SSVALS(outbuf,smb_vwv16+1,len);
- p += len;
+ DATA_BLOB spnego_blob = negprot_spnego();
+
+ if (spnego_blob.data == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+
+ ret = message_push_blob(&req->outbuf, spnego_blob);
+ if (ret == -1) {
+ DEBUG(0, ("Could not push spnego blob\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ p += ret;
+ data_blob_free(&spnego_blob);
+
+ SCVAL(req->outbuf,smb_vwv16+1, 0);
DEBUG(3,("using SPNEGO\n"));
}
- SSVAL(outbuf,smb_vwv17, p - q); /* length of challenge+domain strings */
- set_message_end(outbuf, p);
-
- return (smb_len(outbuf)+4);
+ SSVAL(req->outbuf,smb_vwv17, p - q); /* length of challenge+domain
+ * strings */
+
+ return;
}
/* these are the protocol lists used for auto architecture detection:
protocol [LANMAN2.1]
protocol [NT LM 0.12]
+Vista:
+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]
+protocol [SMB 2.001]
+
OS/2:
protocol [PC NETWORK PROGRAM 1.0]
protocol [XENIX CORE]
*
* 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
+ Protocol WfWg Win95 WinNT Win2K OS/2 Vista
+ PC NETWORK PROGRAM 1.0 1 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
+ LANMAN1.0 4 2 3 2
+ Windows for Workgroups 3.1a 5 5 5 3 3
+ LM1.2X002 6 4 4 4
+ LANMAN2.1 7 5 5 5
+ NT LM 0.12 6 8 6 6
+ SMB 2.001 7
*
* tim@fsg.com 09/29/95
* Win2K added by matty 17/7/99
#define ARCH_WIN2K 0xC /* Win2K is like NT */
#define ARCH_OS2 0x14 /* Again OS/2 is like NT */
#define ARCH_SAMBA 0x20
+#define ARCH_CIFSFS 0x40
+#define ARCH_VISTA 0x8C /* Vista is like XP/2K */
-#define ARCH_ALL 0x3F
+#define ARCH_ALL 0x7F
/* List of supported protocols, most desired first */
-static struct {
- char *proto_name;
- char *short_name;
- int (*proto_reply_fn)(char *, char *);
- int protocol_level;
+static const struct {
+ const char *proto_name;
+ const char *short_name;
+ void (*proto_reply_fn)(struct smb_request *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},
+ {"NT LANMAN 1.0", "NT1", reply_nt1, PROTOCOL_NT1},
+ {"NT LM 0.12", "NT1", reply_nt1, PROTOCOL_NT1},
+ {"POSIX 2", "NT1", reply_nt1, PROTOCOL_NT1},
+ {"LANMAN2.1", "LANMAN2", reply_lanman2, PROTOCOL_LANMAN2},
+ {"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
+ Reply to a negprot.
+ conn POINTER CAN BE NULL HERE !
****************************************************************************/
-int reply_negprot(connection_struct *conn,
- char *inbuf,char *outbuf, int dum_size,
- int dum_buffsize)
+
+void reply_negprot(struct smb_request *req)
{
- int outsize = set_message(outbuf,1,0,True);
- int Index=0;
- int choice= -1;
- int protocol;
- char *p;
- int bcc = SVAL(smb_buf(inbuf),-2);
- int arch = ARCH_ALL;
- START_PROFILE(SMBnegprot);
-
- p = smb_buf(inbuf)+1;
- while (p < (smb_buf(inbuf) + bcc))
- {
- Index++;
- DEBUG(3,("Requested protocol [%s]\n",p));
- if (strcsequal(p,"Windows for Workgroups 3.1a"))
- arch &= ( ARCH_WFWG | ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K );
- else if (strcsequal(p,"DOS LM1.2X002"))
- arch &= ( ARCH_WFWG | ARCH_WIN95 );
- else if (strcsequal(p,"DOS LANMAN2.1"))
- arch &= ( ARCH_WFWG | ARCH_WIN95 );
- else if (strcsequal(p,"NT LM 0.12"))
- arch &= ( ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K );
- else if (strcsequal(p,"LANMAN2.1"))
- arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
- else if (strcsequal(p,"LM1.2X002"))
- arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
- else if (strcsequal(p,"MICROSOFT NETWORKS 1.03"))
- arch &= ARCH_WINNT;
- else if (strcsequal(p,"XENIX CORE"))
- arch &= ( ARCH_WINNT | ARCH_OS2 );
- else if (strcsequal(p,"Samba")) {
- arch = ARCH_SAMBA;
- break;
- }
-
- p += strlen(p) + 2;
- }
-
- switch ( arch ) {
- case ARCH_SAMBA:
- set_remote_arch(RA_SAMBA);
- break;
- case ARCH_WFWG:
- set_remote_arch(RA_WFWG);
- break;
- case ARCH_WIN95:
- set_remote_arch(RA_WIN95);
- break;
- case ARCH_WINNT:
- if(SVAL(inbuf,smb_flg2)==FLAGS2_WIN2K_SIGNATURE)
- set_remote_arch(RA_WIN2K);
- else
- set_remote_arch(RA_WINNT);
- break;
- case ARCH_WIN2K:
- set_remote_arch(RA_WIN2K);
- break;
- case ARCH_OS2:
- set_remote_arch(RA_OS2);
- break;
- default:
- set_remote_arch(RA_UNKNOWN);
- break;
- }
+ size_t size = smb_len(req->inbuf) + 4;
+ int choice= -1;
+ int protocol;
+ char *p;
+ int bcc = SVAL(smb_buf(req->inbuf),-2);
+ int arch = ARCH_ALL;
+ int num_cliprotos;
+ char **cliprotos;
+ int i;
+
+ static bool done_negprot = False;
+
+ START_PROFILE(SMBnegprot);
+
+ if (done_negprot) {
+ END_PROFILE(SMBnegprot);
+ exit_server_cleanly("multiple negprot's are not permitted");
+ }
+ done_negprot = True;
+
+ if (req->inbuf[size-1] != '\0') {
+ DEBUG(0, ("negprot protocols not 0-terminated\n"));
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ END_PROFILE(SMBnegprot);
+ return;
+ }
+
+ p = smb_buf(req->inbuf) + 1;
+
+ num_cliprotos = 0;
+ cliprotos = NULL;
+
+ while (p < (smb_buf(req->inbuf) + bcc)) {
+
+ char **tmp;
+
+ tmp = TALLOC_REALLOC_ARRAY(talloc_tos(), cliprotos, char *,
+ num_cliprotos+1);
+ if (tmp == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(cliprotos);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ END_PROFILE(SMBnegprot);
+ return;
+ }
+
+ cliprotos = tmp;
+
+ if (pull_ascii_talloc(cliprotos, &cliprotos[num_cliprotos], p)
+ == (size_t)-1) {
+ DEBUG(0, ("pull_ascii_talloc failed\n"));
+ TALLOC_FREE(cliprotos);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ END_PROFILE(SMBnegprot);
+ return;
+ }
+
+ DEBUG(3, ("Requested protocol [%s]\n",
+ cliprotos[num_cliprotos]));
+
+ num_cliprotos += 1;
+ p += strlen(p) + 2;
+ }
+
+ for (i=0; i<num_cliprotos; i++) {
+ if (strcsequal(cliprotos[i], "Windows for Workgroups 3.1a"))
+ arch &= ( ARCH_WFWG | ARCH_WIN95 | ARCH_WINNT
+ | ARCH_WIN2K );
+ else if (strcsequal(cliprotos[i], "DOS LM1.2X002"))
+ arch &= ( ARCH_WFWG | ARCH_WIN95 );
+ else if (strcsequal(cliprotos[i], "DOS LANMAN2.1"))
+ arch &= ( ARCH_WFWG | ARCH_WIN95 );
+ else if (strcsequal(cliprotos[i], "NT LM 0.12"))
+ arch &= ( ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K
+ | ARCH_CIFSFS);
+ else if (strcsequal(cliprotos[i], "SMB 2.001"))
+ arch = ARCH_VISTA;
+ else if (strcsequal(cliprotos[i], "LANMAN2.1"))
+ arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
+ else if (strcsequal(cliprotos[i], "LM1.2X002"))
+ arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
+ else if (strcsequal(cliprotos[i], "MICROSOFT NETWORKS 1.03"))
+ arch &= ARCH_WINNT;
+ else if (strcsequal(cliprotos[i], "XENIX CORE"))
+ arch &= ( ARCH_WINNT | ARCH_OS2 );
+ else if (strcsequal(cliprotos[i], "Samba")) {
+ arch = ARCH_SAMBA;
+ break;
+ } else if (strcsequal(cliprotos[i], "POSIX 2")) {
+ arch = ARCH_CIFSFS;
+ break;
+ }
+ }
+
+ /* CIFSFS can send one arch only, NT LM 0.12. */
+ if (i == 1 && (arch & ARCH_CIFSFS)) {
+ arch = ARCH_CIFSFS;
+ }
+
+ switch ( arch ) {
+ case ARCH_CIFSFS:
+ set_remote_arch(RA_CIFSFS);
+ break;
+ case ARCH_SAMBA:
+ set_remote_arch(RA_SAMBA);
+ break;
+ case ARCH_WFWG:
+ set_remote_arch(RA_WFWG);
+ break;
+ case ARCH_WIN95:
+ set_remote_arch(RA_WIN95);
+ break;
+ case ARCH_WINNT:
+ if(req->flags2 == FLAGS2_WIN2K_SIGNATURE)
+ set_remote_arch(RA_WIN2K);
+ else
+ set_remote_arch(RA_WINNT);
+ break;
+ case ARCH_WIN2K:
+ /* Vista may have been set in the negprot so don't
+ override it here */
+ if ( get_remote_arch() != RA_VISTA )
+ set_remote_arch(RA_WIN2K);
+ break;
+ case ARCH_VISTA:
+ set_remote_arch(RA_VISTA);
+ break;
+ case ARCH_OS2:
+ set_remote_arch(RA_OS2);
+ break;
+ default:
+ set_remote_arch(RA_UNKNOWN);
+ break;
+ }
- /* possibly reload - change of architecture */
- reload_services(True);
+ /* possibly reload - change of architecture */
+ reload_services(True);
+
+ /* moved from the netbios session setup code since we don't have that
+ when the client connects to port 445. Of course there is a small
+ window where we are listening to messages -- jerry */
+
+ claim_connection(
+ NULL,"",FLAG_MSG_GENERAL|FLAG_MSG_SMBD|FLAG_MSG_PRINT_GENERAL);
- /* Check for protocols, most desirable first */
- for (protocol = 0; supported_protocols[protocol].proto_name; protocol++)
- {
- p = smb_buf(inbuf)+1;
- Index = 0;
- if ((supported_protocols[protocol].protocol_level <= lp_maxprotocol()) &&
- (supported_protocols[protocol].protocol_level >= lp_minprotocol()))
- while (p < (smb_buf(inbuf) + bcc))
- {
- if (strequal(p,supported_protocols[protocol].proto_name))
- choice = Index;
- Index++;
- p += strlen(p) + 2;
- }
- if(choice != -1)
- break;
- }
+ /* Check for protocols, most desirable first */
+ for (protocol = 0; supported_protocols[protocol].proto_name; protocol++) {
+ i = 0;
+ if ((supported_protocols[protocol].protocol_level <= lp_maxprotocol()) &&
+ (supported_protocols[protocol].protocol_level >= lp_minprotocol()))
+ while (i < num_cliprotos) {
+ if (strequal(cliprotos[i],supported_protocols[protocol].proto_name))
+ choice = i;
+ i++;
+ }
+ if(choice != -1)
+ break;
+ }
- SSVAL(outbuf,smb_vwv0,choice);
- if(choice != -1) {
- extern fstring remote_proto;
- fstrcpy(remote_proto,supported_protocols[protocol].short_name);
- reload_services(True);
- outsize = supported_protocols[protocol].proto_reply_fn(inbuf, outbuf);
- DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
- }
- else {
- DEBUG(0,("No protocol supported !\n"));
- }
- SSVAL(outbuf,smb_vwv0,choice);
+ if(choice != -1) {
+ fstrcpy(remote_proto,supported_protocols[protocol].short_name);
+ reload_services(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"));
+ reply_outbuf(req, 1, 0);
+ SSVAL(req->outbuf, smb_vwv0, choice);
+ }
- DEBUG( 5, ( "negprot index=%d\n", choice ) );
+ DEBUG( 5, ( "negprot index=%d\n", choice ) );
- END_PROFILE(SMBnegprot);
- return(outsize);
-}
+ if ((lp_server_signing() == Required) && (Protocol < PROTOCOL_NT1)) {
+ exit_server_cleanly("SMB signing is required and "
+ "client negotiated a downlevel protocol");
+ }
+ TALLOC_FREE(cliprotos);
+ END_PROFILE(SMBnegprot);
+ return;
+}
git.samba.org / ira / wip.git / blobdiff