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/*
* 'Guest' password backend for samba
* Copyright (C) Jelmer Vernooij 2002
* Copyright (C) Andrew Bartlett 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"
/******************************************************************
Lookup a name in the SAM database
******************************************************************/
static NTSTATUS guestsam_getsampwnam (struct pdb_methods *methods, SAM_ACCOUNT *user, const char *sname)
{
NTSTATUS nt_status;
struct passwd *pass;
const char *guest_account = lp_guestaccount();
if (!(guest_account && *guest_account)) {
DEBUG(1, ("NULL guest account!?!?\n"));
return NT_STATUS_UNSUCCESSFUL;
}
if (!methods) {
DEBUG(0,("invalid methods\n"));
return NT_STATUS_UNSUCCESSFUL;
}
if (!sname) {
DEBUG(0,("invalid name specified"));
return NT_STATUS_UNSUCCESSFUL;
}
if (!strequal(guest_account, sname)) {
return NT_STATUS_NO_SUCH_USER;
}
pass = getpwnam_alloc(guest_account);
nt_status = pdb_fill_sam_pw(user, pass);
passwd_free(&pass);
return nt_status;
}
/***************************************************************************
Search by rid
**************************************************************************/
static NTSTATUS guestsam_getsampwrid (struct pdb_methods *methods,
SAM_ACCOUNT *user, uint32 rid)
{
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
struct passwd *pass = NULL;
const char *guest_account = lp_guestaccount();
if (!(guest_account && *guest_account)) {
DEBUG(1, ("NULL guest account!?!?\n"));
return nt_status;
}
if (!methods) {
DEBUG(0,("invalid methods\n"));
return nt_status;
}
if (rid == DOMAIN_USER_RID_GUEST) {
pass = getpwnam_alloc(guest_account);
if (!pass) {
DEBUG(1, ("guest account %s does not seem to exist...\n", guest_account));
return NT_STATUS_NO_SUCH_USER;
}
} else {
return NT_STATUS_NO_SUCH_USER;
}
nt_status = pdb_fill_sam_pw(user, pass);
passwd_free(&pass);
return nt_status;
}
static NTSTATUS guestsam_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid)
{
uint32 rid;
if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid))
return NT_STATUS_NO_SUCH_USER;
return guestsam_getsampwrid(my_methods, user, rid);
}
static NTSTATUS pdb_init_guestsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
{
NTSTATUS nt_status;
if (!pdb_context) {
DEBUG(0, ("invalid pdb_context specified\n"));
return NT_STATUS_UNSUCCESSFUL;
}
if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
return nt_status;
}
(*pdb_method)->name = "guestsam";
(*pdb_method)->getsampwnam = guestsam_getsampwnam;
(*pdb_method)->getsampwsid = guestsam_getsampwsid;
/* There's not very much to initialise here */
return NT_STATUS_OK;
}
NTSTATUS pdb_guest_init(void)
{
NTSTATUS ret;
struct passdb_ops ops;
ZERO_STRUCT(ops);
/* fill in our name */
ops.name = "guestsam";
/* fill in all the operations */
ops.init = pdb_init_guestsam;
/* register ourselves with the PASSDB subsystem. */
ret = register_backend("passdb", &ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' PASSDB backend!\n",
ops.name));
return ret;
}
/* fill in our name */
ops.name = "guest";
/* fill in all the operations */
ops.init = pdb_init_guestsam;
/* register ourselves with the PASSDB subsystem. */
ret = register_backend("passdb", &ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' PASSDB backend!\n",
ops.name));
return ret;
}
return ret;
}
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