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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 *sam_account, const char *sname)
{
const char *guest_account = lp_guestaccount();
if (!sam_account || !sname) {
DEBUG(0,("invalid name specified"));
return NT_STATUS_UNSUCCESSFUL;
}
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 (!strequal(guest_account, sname)) {
return NT_STATUS_NO_SUCH_USER;
}
pdb_fill_default_sam(sam_account);
if (!pdb_set_username(sam_account, guest_account, PDB_SET))
return NT_STATUS_UNSUCCESSFUL;
if (!pdb_set_fullname(sam_account, guest_account, PDB_SET))
return NT_STATUS_UNSUCCESSFUL;
if (!pdb_set_domain(sam_account, get_global_sam_name(), PDB_DEFAULT))
return NT_STATUS_UNSUCCESSFUL;
if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT))
return NT_STATUS_UNSUCCESSFUL;
if (!pdb_set_user_sid_from_rid(sam_account, DOMAIN_USER_RID_GUEST, PDB_SET))
return NT_STATUS_UNSUCCESSFUL;
if (!pdb_set_group_sid_from_rid(sam_account, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT))
return NT_STATUS_UNSUCCESSFUL;
return NT_STATUS_OK;
}
/***************************************************************************
Search by rid
**************************************************************************/
static NTSTATUS guestsam_getsampwrid (struct pdb_methods *methods,
SAM_ACCOUNT *sam_account, uint32 rid)
{
if (rid != DOMAIN_USER_RID_GUEST) {
return NT_STATUS_NO_SUCH_USER;
}
if (!sam_account) {
return NT_STATUS_INVALID_PARAMETER;
}
return guestsam_getsampwnam (methods, sam_account, lp_guestaccount());
}
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);
}
/***************************************************************************
Updates a SAM_ACCOUNT
This isn't a particulary practical option for pdb_guest. We certainly don't
want to twidde the filesystem, so what should we do?
Current plan is to transparently add the account. It should appear
as if the pdb_guest version was modified, but its actually stored somehwere.
****************************************************************************/
static NTSTATUS guestsam_update_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *newpwd)
{
#if 0 /* JERRY */
return methods->parent->pdb_add_sam_account(methods->parent, newpwd);
#else
/* I don't think we should allow any modification of
the guest account as SID will could messed up with
the smbpasswd backend --jerry */
return NT_STATUS_NOT_IMPLEMENTED;
#endif
}
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;
(*pdb_method)->update_sam_account = guestsam_update_sam_account;
/* we should do no group mapping here */
(*pdb_method)->getgrsid = pdb_nop_getgrsid;
(*pdb_method)->getgrgid = pdb_nop_getgrgid;
(*pdb_method)->getgrnam = pdb_nop_getgrnam;
(*pdb_method)->add_group_mapping_entry = pdb_nop_add_group_mapping_entry;
(*pdb_method)->update_group_mapping_entry = pdb_nop_update_group_mapping_entry;
(*pdb_method)->delete_group_mapping_entry = pdb_nop_delete_group_mapping_entry;
(*pdb_method)->enum_group_mapping = pdb_nop_enum_group_mapping;
/* There's not very much to initialise here */
return NT_STATUS_OK;
}
NTSTATUS pdb_guest_init(void)
{
return smb_register_passdb(PASSDB_INTERFACE_VERSION, "guest", pdb_init_guestsam);
}
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