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/*
Unix SMB/CIFS implementation.
Winbind daemon - sid related functions
Copyright (C) Tim Potter 2000
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 "winbindd.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
/* Convert a string */
enum winbindd_result winbindd_lookupsid(struct winbindd_cli_state *state)
{
extern DOM_SID global_sid_Builtin;
enum SID_NAME_USE type;
DOM_SID sid, tmp_sid;
uint32 rid;
fstring name;
fstring dom_name;
/* Ensure null termination */
state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
DEBUG(3, ("[%5lu]: lookupsid %s\n", (unsigned long)state->pid,
state->request.data.sid));
/* Lookup sid from PDC using lsa_lookup_sids() */
if (!string_to_sid(&sid, state->request.data.sid)) {
DEBUG(5, ("%s not a SID\n", state->request.data.sid));
return WINBINDD_ERROR;
}
/* Don't look up BUILTIN sids */
sid_copy(&tmp_sid, &sid);
sid_split_rid(&tmp_sid, &rid);
if (sid_equal(&tmp_sid, &global_sid_Builtin)) {
return WINBINDD_ERROR;
}
/* Lookup the sid */
if (!winbindd_lookup_name_by_sid(&sid, dom_name, name, &type)) {
return WINBINDD_ERROR;
}
fstrcpy(state->response.data.name.dom_name, dom_name);
fstrcpy(state->response.data.name.name, name);
state->response.data.name.type = type;
return WINBINDD_OK;
}
/**
* Look up the SID for a qualified name.
**/
enum winbindd_result winbindd_lookupname(struct winbindd_cli_state *state)
{
enum SID_NAME_USE type;
fstring sid_str;
char *name_domain, *name_user;
DOM_SID sid;
struct winbindd_domain *domain;
/* Ensure null termination */
state->request.data.sid[sizeof(state->request.data.name.dom_name)-1]='\0';
/* Ensure null termination */
state->request.data.sid[sizeof(state->request.data.name.name)-1]='\0';
DEBUG(3, ("[%5lu]: lookupname %s%s%s\n", (unsigned long)state->pid,
state->request.data.name.dom_name,
lp_winbind_separator(),
state->request.data.name.name));
name_domain = state->request.data.name.dom_name;
name_user = state->request.data.name.name;
if ((domain = find_domain_from_name(name_domain)) == NULL) {
DEBUG(0, ("could not find domain entry for domain %s\n",
name_domain));
return WINBINDD_ERROR;
}
/* Lookup name from PDC using lsa_lookup_names() */
if (!winbindd_lookup_sid_by_name(domain, name_user, &sid, &type)) {
return WINBINDD_ERROR;
}
sid_to_string(sid_str, &sid);
fstrcpy(state->response.data.sid.sid, sid_str);
state->response.data.sid.type = type;
return WINBINDD_OK;
}
/* Convert a sid to a uid. We assume we only have one rid attached to the
sid. */
enum winbindd_result winbindd_sid_to_uid(struct winbindd_cli_state *state)
{
DOM_SID sid;
uint32 flags = 0x0;
/* Ensure null termination */
state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
DEBUG(3, ("[%5lu]: sid to uid %s\n", (unsigned long)state->pid,
state->request.data.sid));
/* Split sid into domain sid and user rid */
if (!string_to_sid(&sid, state->request.data.sid)) {
DEBUG(1, ("Could not get convert sid %s from string\n", state->request.data.sid));
return WINBINDD_ERROR;
}
if ( state->request.flags & WBFLAG_QUERY_ONLY )
flags = ID_QUERY_ONLY;
/* Find uid for this sid and return it */
if ( !NT_STATUS_IS_OK(idmap_sid_to_uid(&sid, &(state->response.data.uid), flags)) ) {
DEBUG(1, ("Could not get uid for sid %s\n", state->request.data.sid));
return WINBINDD_ERROR;
}
return WINBINDD_OK;
}
/* Convert a sid to a gid. We assume we only have one rid attached to the
sid.*/
enum winbindd_result winbindd_sid_to_gid(struct winbindd_cli_state *state)
{
DOM_SID sid;
uint32 flags = 0x0;
/* Ensure null termination */
state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
DEBUG(3, ("[%5lu]: sid to gid %s\n", (unsigned long)state->pid,
state->request.data.sid));
if (!string_to_sid(&sid, state->request.data.sid)) {
DEBUG(1, ("Could not cvt string to sid %s\n", state->request.data.sid));
return WINBINDD_ERROR;
}
if ( state->request.flags & WBFLAG_QUERY_ONLY )
flags = ID_QUERY_ONLY;
/* Find gid for this sid and return it */
if ( !NT_STATUS_IS_OK(idmap_sid_to_gid(&sid, &(state->response.data.gid), flags)) ) {
DEBUG(1, ("Could not get gid for sid %s\n", state->request.data.sid));
return WINBINDD_ERROR;
}
return WINBINDD_OK;
}
/* Convert a uid to a sid */
enum winbindd_result winbindd_uid_to_sid(struct winbindd_cli_state *state)
{
DOM_SID sid;
#if 0 /* JERRY */
/* we cannot do this check this anymore since a domain member of
a Samba domain may share unix accounts via NIS or LDAP. In this
case the uid/gid will be out of winbindd's range but still might
be resolved to a SID via an ldap idmap backend */
if ((state->request.data.uid < server_state.uid_low ) ||
(state->request.data.uid > server_state.uid_high)) {
return WINBINDD_ERROR;
}
#endif
DEBUG(3, ("[%5lu]: uid to sid %lu\n", (unsigned long)state->pid,
(unsigned long)state->request.data.uid));
/* Lookup rid for this uid */
if (!NT_STATUS_IS_OK(idmap_uid_to_sid(&sid, state->request.data.uid))) {
DEBUG(1, ("Could not convert uid %lu to rid\n",
(unsigned long)state->request.data.uid));
return WINBINDD_ERROR;
}
sid_to_string(state->response.data.sid.sid, &sid);
state->response.data.sid.type = SID_NAME_USER;
return WINBINDD_OK;
}
/* Convert a gid to a sid */
enum winbindd_result winbindd_gid_to_sid(struct winbindd_cli_state *state)
{
DOM_SID sid;
#if 0 /* JERRY */
/* we cannot do this check this anymore since a domain member of
a Samba domain may share unix accounts via NIS or LDAP. In this
case the uid/gid will be out of winbindd's range but still might
be resolved to a SID via an ldap idmap backend */
if ((state->request.data.gid < server_state.gid_low) ||
(state->request.data.gid > server_state.gid_high)) {
return WINBINDD_ERROR;
}
#endif
DEBUG(3, ("[%5lu]: gid to sid %lu\n", (unsigned long)state->pid,
(unsigned long)state->request.data.gid));
/* Lookup sid for this uid */
if (!NT_STATUS_IS_OK(idmap_gid_to_sid(&sid, state->request.data.gid))) {
DEBUG(1, ("Could not convert gid %lu to sid\n",
(unsigned long)state->request.data.gid));
return WINBINDD_ERROR;
}
/* Construct sid and return it */
sid_to_string(state->response.data.sid.sid, &sid);
state->response.data.sid.type = SID_NAME_DOM_GRP;
return WINBINDD_OK;
}
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