1 files changed, 564 insertions, 0 deletions

diff --git a/source4/smb_server/smb/negprot.c b/source4/smb_server/smb/negprot.c
new file mode 100644
index 0000000..cd2451d
--- /dev/null
+++ b/source4/smb_server/smb/negprot.c
@@ -0,0 +1,564 @@
+/* 
+   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 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "system/filesys.h"
+#include "auth/credentials/credentials.h"
+#include "auth/gensec/gensec.h"
+#include "auth/auth.h"
+#include "smb_server/smb_server.h"
+#include "libcli/smb2/smb2.h"
+#include "smb_server/smb2/smb2_server.h"
+#include "samba/service_stream.h"
+#include "lib/stream/packet.h"
+#include "param/param.h"
+
+
+/* initialise the auth_context for this server and return the cryptkey */
+static NTSTATUS get_challenge(struct smbsrv_connection *smb_conn, uint8_t buff[8]) 
+{
+	NTSTATUS nt_status;
+
+	/* muliple negprots are not premitted */
+	if (smb_conn->negotiate.auth_context) {
+		DEBUG(3,("get challenge: is this a secondary negprot?  auth_context is non-NULL!\n"));
+		return NT_STATUS_FOOBAR;
+	}
+
+	DEBUG(10, ("get challenge: creating negprot_global_auth_context\n"));
+
+	nt_status = auth_context_create(smb_conn, 
+					smb_conn->connection->event.ctx,
+					smb_conn->connection->msg_ctx,
+					smb_conn->lp_ctx,
+					&smb_conn->negotiate.auth_context);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(0, ("auth_context_create() returned %s", nt_errstr(nt_status)));
+		return nt_status;
+	}
+
+	nt_status = auth_get_challenge(smb_conn->negotiate.auth_context, buff);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(0, ("auth_get_challenge() returned %s", nt_errstr(nt_status)));
+		return nt_status;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Reply for the core protocol.
+****************************************************************************/
+static void reply_corep(struct smbsrv_request *req, uint16_t choice)
+{
+	smbsrv_setup_reply(req, 1, 0);
+
+	SSVAL(req->out.vwv, VWV(0), choice);
+
+	req->smb_conn->negotiate.protocol = PROTOCOL_CORE;
+
+	if (req->smb_conn->signing.mandatory_signing) {
+		smbsrv_terminate_connection(req->smb_conn, 
+					    "CORE does not support SMB signing, and it is mandatory\n");
+		return;
+	}
+
+	smbsrv_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 smbsrv_request *req, uint16_t choice)
+{
+	uint16_t raw;
+	if (lpcfg_async_smb_echo_handler(req->smb_conn->lp_ctx)) {
+		raw = 0;
+	} else {
+		raw = (lpcfg_read_raw(req->smb_conn->lp_ctx)?1:0) |
+		      (lpcfg_write_raw(req->smb_conn->lp_ctx)?2:0);
+	}
+
+	smbsrv_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_conn->negotiate.protocol = PROTOCOL_COREPLUS;
+
+	if (req->smb_conn->signing.mandatory_signing) {
+		smbsrv_terminate_connection(req->smb_conn, 
+					    "COREPLUS does not support SMB signing, and it is mandatory\n");
+		return;
+	}
+
+	smbsrv_send_reply(req);
+}
+
+/****************************************************************************
+ Reply for the lanman 1.0 protocol.
+****************************************************************************/
+static void reply_lanman1(struct smbsrv_request *req, uint16_t choice)
+{
+	int secword=0;
+	time_t t = req->request_time.tv_sec;
+	uint16_t raw;
+
+	if (lpcfg_async_smb_echo_handler(req->smb_conn->lp_ctx)) {
+		raw = 0;
+	} else {
+		raw = (lpcfg_read_raw(req->smb_conn->lp_ctx)?1:0) |
+		      (lpcfg_write_raw(req->smb_conn->lp_ctx)?2:0);
+	}
+
+	req->smb_conn->negotiate.encrypted_passwords = lpcfg_encrypt_passwords(req->smb_conn->lp_ctx);
+
+	if (req->smb_conn->negotiate.encrypted_passwords)
+		secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
+
+	req->smb_conn->negotiate.protocol = PROTOCOL_LANMAN1;
+
+	smbsrv_setup_reply(req, 13, req->smb_conn->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_conn->negotiate.max_recv);
+	SSVAL(req->out.vwv, VWV(3), lpcfg_max_mux(req->smb_conn->lp_ctx));
+	SSVAL(req->out.vwv, VWV(4), 1);
+	SSVAL(req->out.vwv, VWV(5), raw); 
+	SIVAL(req->out.vwv, VWV(6), req->smb_conn->connection->server_id.pid);
+	srv_push_dos_date(req->smb_conn, req->out.vwv, VWV(8), t);
+	SSVAL(req->out.vwv, VWV(10), req->smb_conn->negotiate.zone_offset/60);
+	SIVAL(req->out.vwv, VWV(11), 0); /* reserved */
+
+	/* Create a token value and add it to the outgoing packet. */
+	if (req->smb_conn->negotiate.encrypted_passwords) {
+		NTSTATUS nt_status;
+
+		SSVAL(req->out.vwv, VWV(11), 8);
+
+		nt_status = get_challenge(req->smb_conn, req->out.data);
+		if (!NT_STATUS_IS_OK(nt_status)) {
+			smbsrv_terminate_connection(req->smb_conn, "LANMAN1 get_challenge failed\n");
+			return;
+		}
+	}
+
+	if (req->smb_conn->signing.mandatory_signing) {
+		smbsrv_terminate_connection(req->smb_conn, 
+					    "LANMAN1 does not support SMB signing, and it is mandatory\n");
+		return;
+	}
+
+	smbsrv_send_reply(req);	
+}
+
+/****************************************************************************
+ Reply for the lanman 2.0 protocol.
+****************************************************************************/
+static void reply_lanman2(struct smbsrv_request *req, uint16_t choice)
+{
+	int secword=0;
+	time_t t = req->request_time.tv_sec;
+	uint16_t raw;
+	if (lpcfg_async_smb_echo_handler(req->smb_conn->lp_ctx)) {
+		raw = 0;
+	} else {
+		raw = (lpcfg_read_raw(req->smb_conn->lp_ctx)?1:0) |
+		      (lpcfg_write_raw(req->smb_conn->lp_ctx)?2:0);
+	}
+
+	req->smb_conn->negotiate.encrypted_passwords = lpcfg_encrypt_passwords(req->smb_conn->lp_ctx);
+  
+	if (req->smb_conn->negotiate.encrypted_passwords)
+		secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
+
+	req->smb_conn->negotiate.protocol = PROTOCOL_LANMAN2;
+
+	smbsrv_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_conn->negotiate.max_recv);
+	SSVAL(req->out.vwv, VWV(3), lpcfg_max_mux(req->smb_conn->lp_ctx));
+	SSVAL(req->out.vwv, VWV(4), 1);
+	SSVAL(req->out.vwv, VWV(5), raw); 
+	SIVAL(req->out.vwv, VWV(6), req->smb_conn->connection->server_id.pid);
+	srv_push_dos_date(req->smb_conn, req->out.vwv, VWV(8), t);
+	SSVAL(req->out.vwv, VWV(10), req->smb_conn->negotiate.zone_offset/60);
+	SIVAL(req->out.vwv, VWV(11), 0);
+
+	/* Create a token value and add it to the outgoing packet. */
+	if (req->smb_conn->negotiate.encrypted_passwords) {
+		SSVAL(req->out.vwv, VWV(11), 8);
+		req_grow_data(req, 8);
+		get_challenge(req->smb_conn, req->out.data);
+	}
+
+	req_push_str(req, NULL, lpcfg_workgroup(req->smb_conn->lp_ctx), -1, STR_TERMINATE);
+
+	if (req->smb_conn->signing.mandatory_signing) {
+		smbsrv_terminate_connection(req->smb_conn, 
+					    "LANMAN2 does not support SMB signing, and it is mandatory\n");
+		return;
+	}
+
+	smbsrv_send_reply(req);
+}
+
+static void reply_nt1_orig(struct smbsrv_request *req)
+{
+	/* Create a token value and add it to the outgoing packet. */
+	if (req->smb_conn->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_conn, req->out.ptr);
+		req->out.ptr += 8;
+		SCVAL(req->out.vwv+1, VWV(16), 8);
+	}
+	req_push_str(req, NULL, lpcfg_workgroup(req->smb_conn->lp_ctx), -1, STR_UNICODE|STR_TERMINATE|STR_NOALIGN);
+	req_push_str(req, NULL, lpcfg_netbios_name(req->smb_conn->lp_ctx), -1, STR_UNICODE|STR_TERMINATE|STR_NOALIGN);
+	DEBUG(3,("not using extended security (SPNEGO or NTLMSSP)\n"));
+}
+
+/*
+  try to determine if the filesystem supports large files
+*/
+static bool large_file_support(const char *path)
+{
+	int fd;
+	ssize_t ret;
+	char c;
+
+	fd = open(path, O_RDWR|O_CREAT, 0600);
+	unlink(path);
+	if (fd == -1) {
+		/* have to assume large files are OK */
+		return true;
+	}
+	ret = pread(fd, &c, 1, ((uint64_t)1)<<32);
+	close(fd);
+	return ret == 0;
+}
+
+/****************************************************************************
+ Reply for the nt protocol.
+****************************************************************************/
+static void reply_nt1(struct smbsrv_request *req, uint16_t choice)
+{
+	/* dual names + lock_and_read + nt SMBs + remote API calls */
+	int capabilities;
+	int secword=0;
+	time_t t = req->request_time.tv_sec;
+	NTTIME nttime;
+	bool negotiate_spnego = false;
+	char *large_test_path;
+
+	unix_to_nt_time(&nttime, t);
+
+	capabilities = 
+		CAP_NT_FIND | CAP_LOCK_AND_READ | 
+		CAP_LEVEL_II_OPLOCKS | CAP_NT_SMBS | CAP_RPC_REMOTE_APIS;
+
+	req->smb_conn->negotiate.encrypted_passwords = lpcfg_encrypt_passwords(req->smb_conn->lp_ctx);
+
+	/* do spnego in user level security if the client
+	   supports it and we can do encrypted passwords */
+	
+	if (req->smb_conn->negotiate.encrypted_passwords && 
+	    (req->flags2 & FLAGS2_EXTENDED_SECURITY)) {
+		negotiate_spnego = true; 
+		capabilities |= CAP_EXTENDED_SECURITY;
+	}
+	
+	if (lpcfg_large_readwrite(req->smb_conn->lp_ctx)) {
+		capabilities |= CAP_LARGE_READX | CAP_LARGE_WRITEX | CAP_W2K_SMBS;
+	}
+
+	large_test_path = lpcfg_lock_path(req, req->smb_conn->lp_ctx, "large_test.dat");
+	if (large_file_support(large_test_path)) {
+		capabilities |= CAP_LARGE_FILES;
+	}
+
+	if (!lpcfg_async_smb_echo_handler(req->smb_conn->lp_ctx) &&
+	    lpcfg_read_raw(req->smb_conn->lp_ctx) &&
+	    lpcfg_write_raw(req->smb_conn->lp_ctx)) {
+		capabilities |= CAP_RAW_MODE;
+	}
+	
+	/* allow for disabling unicode */
+	if (lpcfg_unicode(req->smb_conn->lp_ctx)) {
+		capabilities |= CAP_UNICODE;
+	}
+
+	if (lpcfg_nt_status_support(req->smb_conn->lp_ctx)) {
+		capabilities |= CAP_STATUS32;
+	}
+	
+	if (lpcfg_host_msdfs(req->smb_conn->lp_ctx)) {
+		capabilities |= CAP_DFS;
+	}
+	
+	secword |= NEGOTIATE_SECURITY_USER_LEVEL;
+
+	if (req->smb_conn->negotiate.encrypted_passwords) {
+		secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
+	}
+
+	if (req->smb_conn->signing.allow_smb_signing) {
+		secword |= NEGOTIATE_SECURITY_SIGNATURES_ENABLED;
+	}
+
+	if (req->smb_conn->signing.mandatory_signing) {
+		secword |= NEGOTIATE_SECURITY_SIGNATURES_REQUIRED;
+	}
+	
+	req->smb_conn->negotiate.protocol = PROTOCOL_NT1;
+
+	smbsrv_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), lpcfg_max_mux(req->smb_conn->lp_ctx));
+	SSVAL(req->out.vwv+1, VWV(2), 1); /* num vcs */
+	SIVAL(req->out.vwv+1, VWV(3), req->smb_conn->negotiate.max_recv);
+	SIVAL(req->out.vwv+1, VWV(5), 0x10000); /* raw size. full 64k */
+	SIVAL(req->out.vwv+1, VWV(7), req->smb_conn->connection->server_id.pid); /* session key */
+
+	SIVAL(req->out.vwv+1, VWV(9), capabilities);
+	push_nttime(req->out.vwv+1, VWV(11), nttime);
+	SSVALS(req->out.vwv+1,VWV(15), req->smb_conn->negotiate.zone_offset/60);
+	
+	if (!negotiate_spnego) {
+		reply_nt1_orig(req);
+	} else {
+		struct cli_credentials *server_credentials;
+		struct gensec_security *gensec_security;
+		DATA_BLOB null_data_blob = data_blob(NULL, 0);
+		DATA_BLOB blob = data_blob_null;
+		const char *oid;
+		NTSTATUS nt_status;
+
+		server_credentials =
+			cli_credentials_init_server(req, req->smb_conn->lp_ctx);
+		if (server_credentials == NULL) {
+			DBG_DEBUG("Failed to obtain server credentials, "
+				  "perhaps a standalone server?\n");
+			/*
+			 * Create anon server credentials for for the
+			 * spoolss.notify test.
+			 */
+			server_credentials = cli_credentials_init_anon(req);
+			if (server_credentials == NULL) {
+				smbsrv_terminate_connection(req->smb_conn,
+					"Failed to init server credentials\n");
+				return;
+			}
+		}
+
+		nt_status = samba_server_gensec_start(req,
+						      req->smb_conn->connection->event.ctx,
+						      req->smb_conn->connection->msg_ctx,
+						      req->smb_conn->lp_ctx,
+						      server_credentials,
+						      "cifs",
+						      &gensec_security);
+
+		if (!NT_STATUS_IS_OK(nt_status)) {
+			DEBUG(0, ("Failed to start GENSEC: %s\n", nt_errstr(nt_status)));
+			smbsrv_terminate_connection(req->smb_conn, "Failed to start GENSEC\n");
+			return;
+		}
+
+		if (req->smb_conn->negotiate.auth_context) {
+			smbsrv_terminate_connection(req->smb_conn, "reply_nt1: is this a secondary negprot?  auth_context is non-NULL!\n");
+			return;
+		}
+		req->smb_conn->negotiate.server_credentials = talloc_reparent(req, req->smb_conn, server_credentials);
+
+		oid = GENSEC_OID_SPNEGO;
+		nt_status = gensec_start_mech_by_oid(gensec_security, oid);
+		
+		if (NT_STATUS_IS_OK(nt_status)) {
+			/* Get and push the proposed OID list into the packets */
+			nt_status = gensec_update(gensec_security, req,
+						  null_data_blob, &blob);
+
+			if (!NT_STATUS_IS_OK(nt_status) && !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+				DEBUG(1, ("Failed to get SPNEGO to give us the first token: %s\n", nt_errstr(nt_status)));
+			}
+		}
+
+		if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+			DEBUG(3,("using SPNEGO\n"));
+		} else {
+			DEBUG(5, ("Failed to start SPNEGO, falling back to NTLMSSP only: %s\n", nt_errstr(nt_status)));
+			oid = GENSEC_OID_NTLMSSP;
+			nt_status = gensec_start_mech_by_oid(gensec_security, oid);
+			
+			if (!NT_STATUS_IS_OK(nt_status)) {
+				DEBUG(0, ("Failed to start SPNEGO as well as NTLMSSP fallback: %s\n", nt_errstr(nt_status)));
+				reply_nt1_orig(req);
+				return;
+			}
+			/* NTLMSSP is a client-first exchange */
+			blob = data_blob(NULL, 0);
+			DEBUG(3,("using raw-NTLMSSP\n"));
+		}
+
+		req->smb_conn->negotiate.oid = oid;
+	
+		req_grow_data(req, blob.length + 16);
+		/* a NOT very random guid, perhaps we should get it
+		 * from the credentials (kitchen sink...) */
+		memset(req->out.ptr, '\0', 16);
+		req->out.ptr += 16;
+
+		memcpy(req->out.ptr, blob.data, blob.length);
+		SCVAL(req->out.vwv+1, VWV(16), blob.length + 16);
+		req->out.ptr += blob.length;
+	}
+	
+	smbsrv_send_reply_nosign(req);	
+}
+
+/****************************************************************************
+ Reply for the SMB2 2.001 protocol
+****************************************************************************/
+static void reply_smb2(struct smbsrv_request *req, uint16_t choice)
+{
+	struct smbsrv_connection *smb_conn = req->smb_conn;
+	NTSTATUS status;
+
+	talloc_free(smb_conn->sessions.idtree_vuid);
+	ZERO_STRUCT(smb_conn->sessions);
+	talloc_free(smb_conn->smb_tcons.idtree_tid);
+	ZERO_STRUCT(smb_conn->smb_tcons);
+	ZERO_STRUCT(smb_conn->signing);
+
+	/* reply with a SMB2 packet */
+	status = smbsrv_init_smb2_connection(smb_conn);
+	if (!NT_STATUS_IS_OK(status)) {
+		smbsrv_terminate_connection(smb_conn, nt_errstr(status));
+		talloc_free(req);
+		return;
+	}
+	packet_set_callback(smb_conn->packet, smbsrv_recv_smb2_request);
+	smb2srv_reply_smb_negprot(req);
+	req = NULL;
+}
+
+/* List of supported protocols, most desired first */
+static const struct {
+	const char *proto_name;
+	const char *short_name;
+	void (*proto_reply_fn)(struct smbsrv_request *req, uint16_t choice);
+	int protocol_level;
+} supported_protocols[] = {
+	{"SMB 2.002",			"SMB2",		reply_smb2,	PROTOCOL_SMB2_02},
+	{"NT LANMAN 1.0",		"NT1",		reply_nt1,	PROTOCOL_NT1},
+	{"NT LM 0.12",			"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},
+	{"Windows for Workgroups 3.1a",	"LANMAN1",	reply_lanman1,	PROTOCOL_LANMAN1},
+	{"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 smbsrv_reply_negprot(struct smbsrv_request *req)
+{
+	int protocol;
+	uint8_t *p;
+	uint32_t protos_count = 0;
+	const char **protos = NULL;
+
+	if (req->smb_conn->negotiate.done_negprot) {
+		smbsrv_terminate_connection(req->smb_conn, "multiple negprot's are not permitted");
+		return;
+	}
+	req->smb_conn->negotiate.done_negprot = true;
+
+	p = req->in.data;
+	while (true) {
+		size_t len;
+
+		protos = talloc_realloc(req, protos, const char *, protos_count + 1);
+		if (!protos) {
+			smbsrv_terminate_connection(req->smb_conn, nt_errstr(NT_STATUS_NO_MEMORY));
+			return;
+		}
+		protos[protos_count] = NULL;
+		len = req_pull_ascii4(&req->in.bufinfo, &protos[protos_count], p, STR_ASCII|STR_TERMINATE);
+		p += len;
+		if (len == 0 || !protos[protos_count]) break;
+
+		DEBUG(5,("Requested protocol [%d][%s]\n", protos_count, protos[protos_count]));
+		protos_count++;
+	}
+
+	/* Check for protocols, most desirable first */
+	for (protocol = 0; supported_protocols[protocol].proto_name; protocol++) {
+		int i;
+
+		if (supported_protocols[protocol].protocol_level > lpcfg_server_max_protocol(req->smb_conn->lp_ctx))
+			continue;
+		if (supported_protocols[protocol].protocol_level < lpcfg_server_min_protocol(req->smb_conn->lp_ctx))
+			continue;
+
+		for (i = 0; i < protos_count; i++) {
+			if (strcmp(supported_protocols[protocol].proto_name, protos[i]) != 0) continue;
+
+			supported_protocols[protocol].proto_reply_fn(req, i);
+			DEBUG(3,("Selected protocol [%d][%s]\n",
+				i, supported_protocols[protocol].proto_name));
+			return;
+		}
+	}
+
+	smbsrv_terminate_connection(req->smb_conn, "No protocol supported !");
+}