/*
Unix SMB/CIFS implementation.
Async helpers for blocking functions
Copyright (C) Volker Lendecke 2005
Copyright (C) Gerald Carter 2006
Copyright (C) Simo Sorce 2007
The helpers always consist of three functions:
* A request setup function that takes the necessary parameters together
with a continuation function that is to be called upon completion
* A private continuation function that is internal only. This is to be
called by the lower-level functions in do_async(). Its only task is to
properly call the continuation function named above.
* A worker function that is called inside the appropriate child process.
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 .
*/
#include "includes.h"
#include "winbindd.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
static const struct winbindd_child_dispatch_table idmap_dispatch_table[];
static struct winbindd_child static_idmap_child;
void init_idmap_child(void)
{
setup_domain_child(NULL,
&static_idmap_child,
idmap_dispatch_table,
"idmap");
}
struct winbindd_child *idmap_child(void)
{
return &static_idmap_child;
}
static void winbindd_set_mapping_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ) = (void (*)(void *, bool))c;
if (!success) {
DEBUG(5, ("Could not trigger idmap_set_mapping\n"));
cont(private_data, False);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("idmap_set_mapping returned an error\n"));
cont(private_data, False);
return;
}
cont(private_data, True);
}
void winbindd_set_mapping_async(TALLOC_CTX *mem_ctx, const struct id_map *map,
void (*cont)(void *private_data, bool success),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_SET_MAPPING;
request.data.dual_idmapset.id = map->xid.id;
request.data.dual_idmapset.type = map->xid.type;
sid_to_string(request.data.dual_idmapset.sid, map->sid);
do_async(mem_ctx, idmap_child(), &request, winbindd_set_mapping_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_set_mapping(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
struct id_map map;
DOM_SID sid;
NTSTATUS result;
DEBUG(3, ("[%5lu]: dual_idmapset\n", (unsigned long)state->pid));
if (!string_to_sid(&sid, state->request.data.dual_idmapset.sid))
return WINBINDD_ERROR;
map.sid = &sid;
map.xid.id = state->request.data.dual_idmapset.id;
map.xid.type = state->request.data.dual_idmapset.type;
map.status = ID_MAPPED;
result = idmap_set_mapping(&map);
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
static void winbindd_set_hwm_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ) = (void (*)(void *, bool))c;
if (!success) {
DEBUG(5, ("Could not trigger idmap_set_hwm\n"));
cont(private_data, False);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("idmap_set_hwm returned an error\n"));
cont(private_data, False);
return;
}
cont(private_data, True);
}
void winbindd_set_hwm_async(TALLOC_CTX *mem_ctx, const struct unixid *xid,
void (*cont)(void *private_data, bool success),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_SET_HWM;
request.data.dual_idmapset.id = xid->id;
request.data.dual_idmapset.type = xid->type;
do_async(mem_ctx, idmap_child(), &request, winbindd_set_hwm_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_set_hwm(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
struct unixid xid;
NTSTATUS result;
DEBUG(3, ("[%5lu]: dual_set_hwm\n", (unsigned long)state->pid));
xid.id = state->request.data.dual_idmapset.id;
xid.type = state->request.data.dual_idmapset.type;
switch (xid.type) {
case ID_TYPE_UID:
result = idmap_set_uid_hwm(&xid);
break;
case ID_TYPE_GID:
result = idmap_set_gid_hwm(&xid);
break;
default:
return WINBINDD_ERROR;
}
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
static void winbindd_sids2xids_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ, void *, int) =
(void (*)(void *, bool, void *, int))c;
if (!success) {
DEBUG(5, ("Could not trigger sids2xids\n"));
cont(private_data, False, NULL, 0);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("sids2xids returned an error\n"));
cont(private_data, False, NULL, 0);
return;
}
cont(private_data, True, response->extra_data.data, response->length - sizeof(response));
}
void winbindd_sids2xids_async(TALLOC_CTX *mem_ctx, void *sids, int size,
void (*cont)(void *private_data, bool success, void *data, int len),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_SIDS2XIDS;
request.extra_data.data = (char *)sids;
request.extra_len = size;
do_async(mem_ctx, idmap_child(), &request, winbindd_sids2xids_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_sids2xids(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
DOM_SID *sids;
struct unixid *xids;
struct id_map **ids;
NTSTATUS result;
int num, i;
DEBUG(3, ("[%5lu]: sids to unix ids\n", (unsigned long)state->pid));
if (state->request.extra_len == 0) {
DEBUG(0, ("Invalid buffer size!\n"));
return WINBINDD_ERROR;
}
sids = (DOM_SID *)state->request.extra_data.data;
num = state->request.extra_len / sizeof(DOM_SID);
ids = TALLOC_ZERO_ARRAY(state->mem_ctx, struct id_map *, num + 1);
if ( ! ids) {
DEBUG(0, ("Out of memory!\n"));
return WINBINDD_ERROR;
}
for (i = 0; i < num; i++) {
ids[i] = TALLOC_P(ids, struct id_map);
if ( ! ids[i]) {
DEBUG(0, ("Out of memory!\n"));
talloc_free(ids);
return WINBINDD_ERROR;
}
ids[i]->sid = &sids[i];
}
result = idmap_sids_to_unixids(ids);
if (NT_STATUS_IS_OK(result)) {
xids = SMB_MALLOC_ARRAY(struct unixid, num);
if ( ! xids) {
DEBUG(0, ("Out of memory!\n"));
talloc_free(ids);
return WINBINDD_ERROR;
}
for (i = 0; i < num; i++) {
if (ids[i]->status == ID_MAPPED) {
xids[i].type = ids[i]->xid.type;
xids[i].id = ids[i]->xid.id;
} else {
xids[i].type = -1;
}
}
state->response.length = sizeof(state->response) + (sizeof(struct unixid) * num);
state->response.extra_data.data = xids;
} else {
DEBUG (2, ("idmap_sids_to_unixids returned an error: 0x%08x\n", NT_STATUS_V(result)));
talloc_free(ids);
return WINBINDD_ERROR;
}
talloc_free(ids);
return WINBINDD_OK;
}
static void winbindd_sid2uid_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ, uid_t uid) =
(void (*)(void *, bool, uid_t))c;
if (!success) {
DEBUG(5, ("Could not trigger sid2uid\n"));
cont(private_data, False, 0);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("sid2uid returned an error\n"));
cont(private_data, False, 0);
return;
}
cont(private_data, True, response->data.uid);
}
void winbindd_sid2uid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
void (*cont)(void *private_data, bool success, uid_t uid),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_SID2UID;
sid_to_string(request.data.dual_sid2id.sid, sid);
do_async(mem_ctx, idmap_child(), &request, winbindd_sid2uid_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_sid2uid(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
DOM_SID sid;
NTSTATUS result;
DEBUG(3, ("[%5lu]: sid to uid %s\n", (unsigned long)state->pid,
state->request.data.dual_sid2id.sid));
if (!string_to_sid(&sid, state->request.data.dual_sid2id.sid)) {
DEBUG(1, ("Could not get convert sid %s from string\n",
state->request.data.dual_sid2id.sid));
return WINBINDD_ERROR;
}
/* Find uid for this sid and return it, possibly ask the slow remote idmap */
result = idmap_sid_to_uid(&sid, &(state->response.data.uid));
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
static void winbindd_sid2gid_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ, gid_t gid) =
(void (*)(void *, bool, gid_t))c;
if (!success) {
DEBUG(5, ("Could not trigger sid2gid\n"));
cont(private_data, False, 0);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("sid2gid returned an error\n"));
cont(private_data, False, 0);
return;
}
cont(private_data, True, response->data.gid);
}
void winbindd_sid2gid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
void (*cont)(void *private_data, bool success, gid_t gid),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_SID2GID;
sid_to_string(request.data.dual_sid2id.sid, sid);
DEBUG(7,("winbindd_sid2gid_async: Resolving %s to a gid\n",
request.data.dual_sid2id.sid));
do_async(mem_ctx, idmap_child(), &request, winbindd_sid2gid_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_sid2gid(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
DOM_SID sid;
NTSTATUS result;
DEBUG(3, ("[%5lu]: sid to gid %s\n", (unsigned long)state->pid,
state->request.data.dual_sid2id.sid));
if (!string_to_sid(&sid, state->request.data.dual_sid2id.sid)) {
DEBUG(1, ("Could not get convert sid %s from string\n",
state->request.data.dual_sid2id.sid));
return WINBINDD_ERROR;
}
/* Find gid for this sid and return it, possibly ask the slow remote idmap */
result = idmap_sid_to_gid(&sid, &state->response.data.gid);
DEBUG(10, ("winbindd_dual_sid2gid: 0x%08x - %s - %u\n", NT_STATUS_V(result), sid_string_static(&sid), state->response.data.gid));
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
/* The following uid2sid/gid2sid functions has been contributed by
* Keith Reynolds */
static void winbindd_uid2sid_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ, const char *sid) =
(void (*)(void *, bool, const char *))c;
if (!success) {
DEBUG(5, ("Could not trigger uid2sid\n"));
cont(private_data, False, NULL);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("uid2sid returned an error\n"));
cont(private_data, False, NULL);
return;
}
cont(private_data, True, response->data.sid.sid);
}
void winbindd_uid2sid_async(TALLOC_CTX *mem_ctx, uid_t uid,
void (*cont)(void *private_data, bool success, const char *sid),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_UID2SID;
request.data.uid = uid;
do_async(mem_ctx, idmap_child(), &request, winbindd_uid2sid_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_uid2sid(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
DOM_SID sid;
NTSTATUS result;
DEBUG(3,("[%5lu]: uid to sid %lu\n",
(unsigned long)state->pid,
(unsigned long) state->request.data.uid));
/* Find sid for this uid and return it, possibly ask the slow remote idmap */
result = idmap_uid_to_sid(&sid, state->request.data.uid);
if (NT_STATUS_IS_OK(result)) {
sid_to_string(state->response.data.sid.sid, &sid);
state->response.data.sid.type = SID_NAME_USER;
return WINBINDD_OK;
}
return WINBINDD_ERROR;
}
static void winbindd_gid2sid_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ, const char *sid) =
(void (*)(void *, bool, const char *))c;
if (!success) {
DEBUG(5, ("Could not trigger gid2sid\n"));
cont(private_data, False, NULL);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("gid2sid returned an error\n"));
cont(private_data, False, NULL);
return;
}
cont(private_data, True, response->data.sid.sid);
}
void winbindd_gid2sid_async(TALLOC_CTX *mem_ctx, gid_t gid,
void (*cont)(void *private_data, bool success, const char *sid),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_GID2SID;
request.data.gid = gid;
do_async(mem_ctx, idmap_child(), &request, winbindd_gid2sid_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_gid2sid(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
DOM_SID sid;
NTSTATUS result;
DEBUG(3,("[%5lu]: gid %lu to sid\n",
(unsigned long)state->pid,
(unsigned long) state->request.data.gid));
/* Find sid for this gid and return it, possibly ask the slow remote idmap */
result = idmap_gid_to_sid(&sid, state->request.data.gid);
if (NT_STATUS_IS_OK(result)) {
sid_to_string(state->response.data.sid.sid, &sid);
DEBUG(10, ("[%5lu]: retrieved sid: %s\n",
(unsigned long)state->pid,
state->response.data.sid.sid));
state->response.data.sid.type = SID_NAME_DOM_GRP;
return WINBINDD_OK;
}
return WINBINDD_ERROR;
}
static void winbindd_dump_id_maps_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
{
void (*cont)(void *priv, bool succ) =
(void (*)(void *, bool))c;
if (!success) {
DEBUG(5, ("Could not trigger a map dump\n"));
cont(private_data, False);
return;
}
if (response->result != WINBINDD_OK) {
DEBUG(5, ("idmap dump maps returned an error\n"));
cont(private_data, False);
return;
}
cont(private_data, True);
}
void winbindd_dump_maps_async(TALLOC_CTX *mem_ctx, const char *logfile,
void (*cont)(void *private_data, bool success),
void *private_data)
{
struct winbindd_request request;
ZERO_STRUCT(request);
request.cmd = WINBINDD_DUAL_DUMP_MAPS;
request.extra_data.data = discard_const(logfile);
request.extra_len = strlen(logfile)+1;
do_async(mem_ctx, idmap_child(), &request, winbindd_dump_id_maps_recv,
(void *)cont, private_data);
}
enum winbindd_result winbindd_dual_dump_maps(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
DEBUG(3, ("[%5lu]: dual dump maps\n", (unsigned long)state->pid));
idmap_dump_maps((char *)state->request.extra_data.data);
return WINBINDD_OK;
}
static const struct winbindd_child_dispatch_table idmap_dispatch_table[] = {
{
.name = "DUAL_SID2UID",
.struct_cmd = WINBINDD_DUAL_SID2UID,
.struct_fn = winbindd_dual_sid2uid,
},{
.name = "DUAL_SID2GID",
.struct_cmd = WINBINDD_DUAL_SID2GID,
.struct_fn = winbindd_dual_sid2gid,
#if 0 /* DISABLED until we fix the interface in Samba 3.0.26 --jerry */
},{
.name = "DUAL_SIDS2XIDS",
.struct_cmd = WINBINDD_DUAL_SIDS2XIDS,
.struct_fn = winbindd_dual_sids2xids,
#endif /* end DISABLED */
},{
.name = "DUAL_UID2SID",
.struct_cmd = WINBINDD_DUAL_UID2SID,
.struct_fn = winbindd_dual_uid2sid,
},{
.name = "DUAL_GID2SID",
.struct_cmd = WINBINDD_DUAL_GID2SID,
.struct_fn = winbindd_dual_gid2sid,
},{
.name = "DUAL_SET_MAPPING",
.struct_cmd = WINBINDD_DUAL_SET_MAPPING,
.struct_fn = winbindd_dual_set_mapping,
},{
.name = "DUAL_SET_HWMS",
.struct_cmd = WINBINDD_DUAL_SET_HWM,
.struct_fn = winbindd_dual_set_hwm,
},{
.name = "DUAL_DUMP_MAPS",
.struct_cmd = WINBINDD_DUAL_DUMP_MAPS,
.struct_fn = winbindd_dual_dump_maps,
},{
.name = "ALLOCATE_UID",
.struct_cmd = WINBINDD_ALLOCATE_UID,
.struct_fn = winbindd_dual_allocate_uid,
},{
.name = "ALLOCATE_GID",
.struct_cmd = WINBINDD_ALLOCATE_GID,
.struct_fn = winbindd_dual_allocate_gid,
},{
.name = NULL,
}
};