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/*
Unix SMB/CIFS implementation.
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
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"
/*
setup the OS, Lanman and domain portions of a session setup reply
*/
static void sesssetup_common_strings(struct request_context *req,
char **os, char **lanman, char **domain)
{
(*os) = talloc_asprintf(req->mem_ctx, "Unix");
(*lanman) = talloc_asprintf(req->mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
(*domain) = talloc_asprintf(req->mem_ctx, "%s", lp_workgroup());
}
/*
handler for old style session setup
*/
static NTSTATUS sesssetup_old(struct request_context *req, union smb_sesssetup *sess)
{
NTSTATUS status;
struct auth_usersupplied_info *user_info = NULL;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info;
DATA_BLOB null_blob;
if (!req->smb_ctx->negotiate.done_sesssetup) {
req->smb_ctx->negotiate.max_send = sess->old.in.bufsize;
}
null_blob.length = 0;
status = make_user_info_for_reply_enc(&user_info,
sess->old.in.user, sess->old.in.domain,
sess->old.in.password,
null_blob);
if (!NT_STATUS_IS_OK(status)) {
return NT_STATUS_ACCESS_DENIED;
}
status = req->smb_ctx->negotiate.auth_context->check_ntlm_password(req->smb_ctx->negotiate.auth_context,
user_info,
&server_info);
if (!NT_STATUS_IS_OK(status)) {
return nt_status_squash(status);
}
status = make_session_info(server_info, &session_info);
if (!NT_STATUS_IS_OK(status)) {
return nt_status_squash(status);
}
sess->old.out.action = 0;
sess->old.out.vuid = register_vuid(req->smb_ctx, session_info, sess->old.in.user);
sesssetup_common_strings(req,
&sess->old.out.os,
&sess->old.out.lanman,
&sess->old.out.domain);
return NT_STATUS_OK;
}
/*
handler for NT1 style session setup
*/
static NTSTATUS sesssetup_nt1(struct request_context *req, union smb_sesssetup *sess)
{
NTSTATUS status;
struct auth_usersupplied_info *user_info = NULL;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info;
if (!req->smb_ctx->negotiate.done_sesssetup) {
req->smb_ctx->negotiate.max_send = sess->nt1.in.bufsize;
req->smb_ctx->negotiate.client_caps = sess->nt1.in.capabilities;
}
status = make_user_info_for_reply_enc(&user_info,
sess->nt1.in.user, sess->nt1.in.domain,
sess->nt1.in.password1,
sess->nt1.in.password2);
if (!NT_STATUS_IS_OK(status)) {
return NT_STATUS_ACCESS_DENIED;
}
status = req->smb_ctx->negotiate.auth_context->check_ntlm_password(req->smb_ctx->negotiate.auth_context,
user_info,
&server_info);
if (!NT_STATUS_IS_OK(status)) {
return nt_status_squash(status);
}
status = make_session_info(server_info, &session_info);
if (!NT_STATUS_IS_OK(status)) {
return nt_status_squash(status);
}
sess->nt1.out.action = 0;
sess->nt1.out.vuid = register_vuid(req->smb_ctx, session_info, sess->old.in.user);
if (sess->nt1.out.vuid == UID_FIELD_INVALID) {
return NT_STATUS_ACCESS_DENIED;
}
sesssetup_common_strings(req,
&sess->nt1.out.os,
&sess->nt1.out.lanman,
&sess->nt1.out.domain);
srv_setup_signing(req->smb_ctx, &session_info->session_key, &sess->nt1.in.password2);
return NT_STATUS_OK;
}
/*
handler for SPNEGO style session setup
*/
static NTSTATUS sesssetup_spnego(struct request_context *req, union smb_sesssetup *sess)
{
/* defer this one for now */
return NT_STATUS_INVALID_LEVEL;
}
/*
backend for sessionsetup call - this takes all 3 variants of the call
*/
NTSTATUS sesssetup_backend(struct request_context *req,
union smb_sesssetup *sess)
{
switch (sess->generic.level) {
case RAW_SESSSETUP_OLD:
return sesssetup_old(req, sess);
case RAW_SESSSETUP_NT1:
return sesssetup_nt1(req, sess);
case RAW_SESSSETUP_SPNEGO:
return sesssetup_spnego(req, sess);
}
req->smb_ctx->negotiate.done_sesssetup = True;
return NT_STATUS_INVALID_LEVEL;
}
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