*/
#include "includes.h"
+#include "system/filesys.h"
#include "winbindd.h"
#include "idmap.h"
#include "idmap_rw.h"
-#include "dbwrap.h"
+#include "dbwrap/dbwrap.h"
+#include "dbwrap/dbwrap_open.h"
+#include "../libcli/security/dom_sid.h"
+#include "util_tdb.h"
+#include "idmap_tdb_common.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_IDMAP
struct idmap_tdb2_context {
- struct db_context *db;
const char *script; /* script to provide idmaps */
- struct idmap_rw_ops *rw_ops;
};
/* High water mark keys */
#define HWM_GROUP "GROUP HWM"
#define HWM_USER "USER HWM"
-
/*
* check and initialize high/low water marks in the db
*/
static NTSTATUS idmap_tdb2_init_hwm(struct idmap_domain *dom)
{
- uint32 low_id;
- struct idmap_tdb2_context *ctx;
+ NTSTATUS status;
+ uint32_t low_id;
+ struct idmap_tdb_common_context *ctx;
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
+ ctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
/* Create high water marks for group and user id */
- low_id = dbwrap_fetch_int32(ctx->db, HWM_USER);
- if ((low_id == -1) || (low_id < dom->low_id)) {
- if (!NT_STATUS_IS_OK(dbwrap_trans_store_int32(
- ctx->db, HWM_USER,
- dom->low_id))) {
+ status = dbwrap_fetch_uint32_bystring(ctx->db, HWM_USER, &low_id);
+ if (!NT_STATUS_IS_OK(status) || (low_id < dom->low_id)) {
+ status = dbwrap_trans_store_uint32_bystring(ctx->db, HWM_USER,
+ dom->low_id);
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Unable to initialise user hwm in idmap "
- "database\n"));
+ "database: %s\n", nt_errstr(status)));
return NT_STATUS_INTERNAL_DB_ERROR;
}
}
- low_id = dbwrap_fetch_int32(ctx->db, HWM_GROUP);
- if ((low_id == -1) || (low_id < dom->low_id)) {
- if (!NT_STATUS_IS_OK(dbwrap_trans_store_int32(
- ctx->db, HWM_GROUP,
- dom->low_id))) {
+ status = dbwrap_fetch_uint32_bystring(ctx->db, HWM_GROUP, &low_id);
+ if (!NT_STATUS_IS_OK(status) || (low_id < dom->low_id)) {
+ status = dbwrap_trans_store_uint32_bystring(ctx->db, HWM_GROUP,
+ dom->low_id);
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Unable to initialise group hwm in idmap "
- "database\n"));
+ "database: %s\n", nt_errstr(status)));
return NT_STATUS_INTERNAL_DB_ERROR;
}
}
static NTSTATUS idmap_tdb2_open_db(struct idmap_domain *dom)
{
char *db_path;
- struct idmap_tdb2_context *ctx;
+ struct idmap_tdb_common_context *ctx;
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
+ ctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
if (ctx->db) {
/* its already open */
return NT_STATUS_OK;
}
- db_path = lp_parm_talloc_string(-1, "tdb", "idmap2.tdb", NULL);
- if (db_path == NULL) {
- /* fall back to the private directory, which, despite
- its name, is usually on shared storage */
- db_path = talloc_asprintf(NULL, "%s/idmap2.tdb", lp_private_dir());
- }
+ db_path = talloc_asprintf(NULL, "%s/idmap2.tdb", lp_private_dir());
NT_STATUS_HAVE_NO_MEMORY(db_path);
/* Open idmap repository */
- ctx->db = db_open(ctx, db_path, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0644);
+ ctx->db = db_open(ctx, db_path, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0644,
+ DBWRAP_LOCK_ORDER_1, DBWRAP_FLAG_NONE);
TALLOC_FREE(db_path);
if (ctx->db == NULL) {
return idmap_tdb2_init_hwm(dom);
}
-
-/*
- Allocate a new id.
-*/
-
-struct idmap_tdb2_allocate_id_context {
- const char *hwmkey;
- const char *hwmtype;
- uint32_t high_hwm;
- uint32_t hwm;
-};
-
-static NTSTATUS idmap_tdb2_allocate_id_action(struct db_context *db,
- void *private_data)
-{
- NTSTATUS ret;
- struct idmap_tdb2_allocate_id_context *state;
- uint32_t hwm;
-
- state = (struct idmap_tdb2_allocate_id_context *)private_data;
-
- hwm = dbwrap_fetch_int32(db, state->hwmkey);
- if (hwm == -1) {
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- goto done;
- }
-
- /* check it is in the range */
- if (hwm > state->high_hwm) {
- DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
- state->hwmtype, (unsigned long)state->high_hwm));
- ret = NT_STATUS_UNSUCCESSFUL;
- goto done;
- }
-
- /* fetch a new id and increment it */
- ret = dbwrap_trans_change_uint32_atomic(db, state->hwmkey, &hwm, 1);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(1, ("Fatal error while fetching a new %s value\n!",
- state->hwmtype));
- goto done;
- }
-
- /* recheck it is in the range */
- if (hwm > state->high_hwm) {
- DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
- state->hwmtype, (unsigned long)state->high_hwm));
- ret = NT_STATUS_UNSUCCESSFUL;
- goto done;
- }
-
- ret = NT_STATUS_OK;
- state->hwm = hwm;
-
-done:
- return ret;
-}
-
-static NTSTATUS idmap_tdb2_allocate_id(struct idmap_domain *dom,
- struct unixid *xid)
-{
- const char *hwmkey;
- const char *hwmtype;
- uint32_t high_hwm;
- uint32_t hwm = 0;
- NTSTATUS status;
- struct idmap_tdb2_allocate_id_context state;
- struct idmap_tdb2_context *ctx;
-
- status = idmap_tdb2_open_db(dom);
- NT_STATUS_NOT_OK_RETURN(status);
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
-
- /* Get current high water mark */
- switch (xid->type) {
-
- case ID_TYPE_UID:
- hwmkey = HWM_USER;
- hwmtype = "UID";
- break;
-
- case ID_TYPE_GID:
- hwmkey = HWM_GROUP;
- hwmtype = "GID";
- break;
-
- default:
- DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- high_hwm = dom->high_id;
-
- state.hwm = hwm;
- state.high_hwm = high_hwm;
- state.hwmtype = hwmtype;
- state.hwmkey = hwmkey;
-
- status = dbwrap_trans_do(ctx->db, idmap_tdb2_allocate_id_action,
- &state);
-
- if (NT_STATUS_IS_OK(status)) {
- xid->id = state.hwm;
- DEBUG(10,("New %s = %d\n", hwmtype, state.hwm));
- } else {
- DEBUG(1, ("Error allocating a new %s\n", hwmtype));
- }
-
- return status;
-}
-
-/**
- * Allocate a new unix-ID.
- * For now this is for the default idmap domain only.
- * Should be extended later on.
- */
-static NTSTATUS idmap_tdb2_get_new_id(struct idmap_domain *dom,
- struct unixid *id)
-{
- NTSTATUS ret;
-
- if (!strequal(dom->name, "*")) {
- DEBUG(3, ("idmap_tdb2_get_new_id: "
- "Refusing creation of mapping for domain'%s'. "
- "Currently only supported for the default "
- "domain \"*\".\n",
- dom->name));
- return NT_STATUS_NOT_IMPLEMENTED;
- }
-
- ret = idmap_tdb2_allocate_id(dom, id);
-
- return ret;
-}
-
-/*
- IDMAP MAPPING TDB BACKEND
-*/
-
-static NTSTATUS idmap_tdb2_set_mapping(struct idmap_domain *dom,
- const struct id_map *map);
-
-/*
- Initialise idmap database.
-*/
-static NTSTATUS idmap_tdb2_db_init(struct idmap_domain *dom,
- const char *params)
-{
- NTSTATUS ret;
- struct idmap_tdb2_context *ctx;
-
- ctx = talloc_zero(dom, struct idmap_tdb2_context);
- if ( ! ctx) {
- DEBUG(0, ("Out of memory!\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- if (strequal(dom->name, "*")) {
- ctx->script = lp_parm_const_string(-1, "idmap", "script", NULL);
- if (ctx->script) {
- DEBUG(1, ("using idmap script '%s'\n", ctx->script));
- }
- } else {
- char *config_option = NULL;
-
- config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
- if ( ! config_option) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- ctx->script = lp_parm_const_string(-1, config_option, "script", NULL);
- if (ctx->script) {
- DEBUG(1, ("using idmap script '%s'\n", ctx->script));
- }
-
- talloc_free(config_option);
- }
-
- ctx->rw_ops = talloc_zero(ctx, struct idmap_rw_ops);
- if (ctx->rw_ops == NULL) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- ctx->rw_ops->get_new_id = idmap_tdb2_get_new_id;
- ctx->rw_ops->set_mapping = idmap_tdb2_set_mapping;
-
- dom->private_data = ctx;
-
- ret = idmap_tdb2_open_db(dom);
- if (!NT_STATUS_IS_OK(ret)) {
- goto failed;
- }
-
- return NT_STATUS_OK;
-
-failed:
- talloc_free(ctx);
- return ret;
-}
-
-
/**
* store a mapping in the database.
*/
DEBUG(10, ("Storing %s <-> %s map\n", state->ksidstr, state->kidstr));
/* check wheter sid mapping is already present in db */
- data = dbwrap_fetch_bystring(db, tmp_ctx, state->ksidstr);
- if (data.dptr) {
+ ret = dbwrap_fetch_bystring(db, tmp_ctx, state->ksidstr, &data);
+ if (NT_STATUS_IS_OK(ret)) {
ret = NT_STATUS_OBJECT_NAME_COLLISION;
goto done;
}
struct idmap_tdb2_context *ctx;
NTSTATUS ret;
char *ksidstr, *kidstr;
+ struct idmap_tdb_common_context *commonctx;
struct idmap_tdb2_set_mapping_context state;
if (!map || !map->sid) {
/* TODO: should we filter a set_mapping using low/high filters ? */
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
+ commonctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
+
+ ctx = talloc_get_type(commonctx->private_data,
+ struct idmap_tdb2_context);
switch (map->xid.type) {
state.ksidstr = ksidstr;
state.kidstr = kidstr;
- ret = dbwrap_trans_do(ctx->db, idmap_tdb2_set_mapping_action,
+ ret = dbwrap_trans_do(commonctx->db, idmap_tdb2_set_mapping_action,
&state);
done:
return ret;
}
-/**
- * Create a new mapping for an unmapped SID, also allocating a new ID.
- * This should be run inside a transaction.
- *
- * TODO:
-* Properly integrate this with multi domain idmap config:
- * Currently, the allocator is default-config only.
- */
-static NTSTATUS idmap_tdb2_new_mapping(struct idmap_domain *dom, struct id_map *map)
-{
- NTSTATUS ret;
- struct idmap_tdb2_context *ctx;
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
-
- ret = idmap_rw_new_mapping(dom, ctx->rw_ops, map);
-
- return ret;
-}
-
-
/*
run a script to perform a mapping
SID:xxxx
ERR:xxxx
*/
+static NTSTATUS idmap_tdb2_script(struct idmap_tdb2_context *ctx,
+ struct id_map *map, const char *fmt, ...)
+ PRINTF_ATTRIBUTE(3,4);
+
static NTSTATUS idmap_tdb2_script(struct idmap_tdb2_context *ctx, struct id_map *map,
const char *fmt, ...)
{
TDB_DATA data;
char *keystr;
NTSTATUS status;
+ struct idmap_tdb_common_context *commonctx;
struct idmap_tdb2_context *ctx;
status = idmap_tdb2_open_db(dom);
NT_STATUS_NOT_OK_RETURN(status);
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
+ commonctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
+
+ ctx = talloc_get_type(commonctx->private_data,
+ struct idmap_tdb2_context);
/* apply filters before checking */
if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
return NT_STATUS_INVALID_PARAMETER;
}
- /* final SAFE_FREE safe */
- data.dptr = NULL;
-
if (keystr == NULL) {
DEBUG(0, ("Out of memory!\n"));
ret = NT_STATUS_NO_MEMORY;
DEBUG(10,("Fetching record %s\n", keystr));
/* Check if the mapping exists */
- data = dbwrap_fetch_bystring(ctx->db, keystr, keystr);
+ status = dbwrap_fetch_bystring(commonctx->db, keystr, keystr, &data);
- if (!data.dptr) {
+ if (!NT_STATUS_IS_OK(status)) {
char *sidstr;
struct idmap_tdb2_set_mapping_context store_state;
}
ret = idmap_tdb2_script(ctx, map, "IDTOSID %s", keystr);
-
- /* store it on shared storage */
if (!NT_STATUS_IS_OK(ret)) {
goto done;
}
store_state.ksidstr = sidstr;
store_state.kidstr = keystr;
- ret = dbwrap_trans_do(ctx->db, idmap_tdb2_set_mapping_action,
+ ret = dbwrap_trans_do(commonctx->db,
+ idmap_tdb2_set_mapping_action,
&store_state);
goto done;
}
TDB_DATA data;
char *keystr;
unsigned long rec_id = 0;
+ struct idmap_tdb_common_context *commonctx;
struct idmap_tdb2_context *ctx;
TALLOC_CTX *tmp_ctx = talloc_stackframe();
ret = idmap_tdb2_open_db(dom);
NT_STATUS_NOT_OK_RETURN(ret);
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
+ commonctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
+
+ ctx = talloc_get_type(commonctx->private_data,
+ struct idmap_tdb2_context);
keystr = sid_string_talloc(tmp_ctx, map->sid);
if (keystr == NULL) {
DEBUG(10,("Fetching record %s\n", keystr));
/* Check if sid is present in database */
- data = dbwrap_fetch_bystring(ctx->db, tmp_ctx, keystr);
- if (!data.dptr) {
+ ret = dbwrap_fetch_bystring(commonctx->db, tmp_ctx, keystr, &data);
+ if (!NT_STATUS_IS_OK(ret)) {
char *idstr;
struct idmap_tdb2_set_mapping_context store_state;
}
ret = idmap_tdb2_script(ctx, map, "SIDTOID %s", keystr);
- /* store it on shared storage */
if (!NT_STATUS_IS_OK(ret)) {
goto done;
}
store_state.ksidstr = keystr;
store_state.kidstr = idstr;
- ret = dbwrap_trans_do(ctx->db, idmap_tdb2_set_mapping_action,
+ ret = dbwrap_trans_do(commonctx->db,
+ idmap_tdb2_set_mapping_action,
&store_state);
goto done;
}
}
/*
- lookup a set of unix ids.
+ Initialise idmap database.
*/
-static NTSTATUS idmap_tdb2_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
+static NTSTATUS idmap_tdb2_db_init(struct idmap_domain *dom)
{
NTSTATUS ret;
- int i;
+ struct idmap_tdb_common_context *commonctx;
+ struct idmap_tdb2_context *ctx;
+ char *config_option = NULL;
+ const char * idmap_script = NULL;
- /* initialize the status to avoid suprise */
- for (i = 0; ids[i]; i++) {
- ids[i]->status = ID_UNKNOWN;
+ commonctx = talloc_zero(dom, struct idmap_tdb_common_context);
+ if(!commonctx) {
+ DEBUG(0, ("Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
}
- for (i = 0; ids[i]; i++) {
- ret = idmap_tdb2_id_to_sid(dom, ids[i]);
- if ( ! NT_STATUS_IS_OK(ret)) {
-
- /* if it is just a failed mapping continue */
- if (NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED)) {
-
- /* make sure it is marked as unmapped */
- ids[i]->status = ID_UNMAPPED;
- continue;
- }
-
- /* some fatal error occurred, return immediately */
- goto done;
- }
-
- /* all ok, id is mapped */
- ids[i]->status = ID_MAPPED;
+ commonctx->rw_ops = talloc_zero(commonctx, struct idmap_rw_ops);
+ if (commonctx->rw_ops == NULL) {
+ DEBUG(0, ("Out of memory!\n"));
+ ret = NT_STATUS_NO_MEMORY;
+ goto failed;
}
- ret = NT_STATUS_OK;
-
-done:
- return ret;
-}
-
-/*
- lookup a set of sids.
-*/
-
-struct idmap_tdb2_sids_to_unixids_context {
- struct idmap_domain *dom;
- struct id_map **ids;
- bool allocate_unmapped;
-};
+ ctx = talloc_zero(commonctx, struct idmap_tdb2_context);
+ if (!ctx) {
+ DEBUG(0, ("Out of memory!\n"));
+ ret = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
-static NTSTATUS idmap_tdb2_sids_to_unixids_action(struct db_context *db,
- void *private_data)
-{
- struct idmap_tdb2_sids_to_unixids_context *state;
- int i;
- NTSTATUS ret = NT_STATUS_OK;
-
- state = (struct idmap_tdb2_sids_to_unixids_context *)private_data;
-
- DEBUG(10, ("idmap_tdb2_sids_to_unixids_action: "
- " domain: [%s], allocate: %s\n",
- state->dom->name,
- state->allocate_unmapped ? "yes" : "no"));
-
- for (i = 0; state->ids[i]; i++) {
- if ((state->ids[i]->status == ID_UNKNOWN) ||
- /* retry if we could not map in previous run: */
- (state->ids[i]->status == ID_UNMAPPED))
- {
- NTSTATUS ret2;
-
- ret2 = idmap_tdb2_sid_to_id(state->dom, state->ids[i]);
- if (!NT_STATUS_IS_OK(ret2)) {
-
- /* if it is just a failed mapping, continue */
- if (NT_STATUS_EQUAL(ret2, NT_STATUS_NONE_MAPPED)) {
-
- /* make sure it is marked as unmapped */
- state->ids[i]->status = ID_UNMAPPED;
- ret = STATUS_SOME_UNMAPPED;
- } else {
- /* some fatal error occurred, return immediately */
- ret = ret2;
- goto done;
- }
- } else {
- /* all ok, id is mapped */
- state->ids[i]->status = ID_MAPPED;
- }
- }
+ config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
+ if (config_option == NULL) {
+ DEBUG(0, ("Out of memory!\n"));
+ ret = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+ ctx->script = lp_parm_const_string(-1, config_option, "script", NULL);
+ talloc_free(config_option);
- if ((state->ids[i]->status == ID_UNMAPPED) &&
- state->allocate_unmapped)
- {
- ret = idmap_tdb2_new_mapping(state->dom, state->ids[i]);
- if (!NT_STATUS_IS_OK(ret)) {
- goto done;
- }
- }
+ idmap_script = lp_parm_const_string(-1, "idmap", "script", NULL);
+ if (idmap_script != NULL) {
+ DEBUG(0, ("Warning: 'idmap:script' is deprecated. "
+ " Please use 'idmap config * : script' instead!\n"));
}
-done:
- return ret;
-}
+ if (strequal(dom->name, "*") && ctx->script == NULL) {
+ /* fall back to idmap:script for backwards compatibility */
+ ctx->script = idmap_script;
+ }
-static NTSTATUS idmap_tdb2_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
-{
- NTSTATUS ret;
- int i;
- struct idmap_tdb2_sids_to_unixids_context state;
- struct idmap_tdb2_context *ctx;
+ if (ctx->script) {
+ DEBUG(1, ("using idmap script '%s'\n", ctx->script));
+ }
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
+ commonctx->max_id = dom->high_id;
+ commonctx->hwmkey_uid = HWM_USER;
+ commonctx->hwmkey_gid = HWM_GROUP;
- /* initialize the status to avoid suprise */
- for (i = 0; ids[i]; i++) {
- ids[i]->status = ID_UNKNOWN;
- }
+ commonctx->sid_to_unixid_fn = idmap_tdb2_sid_to_id;
+ commonctx->unixid_to_sid_fn = idmap_tdb2_id_to_sid;
- state.dom = dom;
- state.ids = ids;
- state.allocate_unmapped = false;
+ commonctx->rw_ops->get_new_id = idmap_tdb_common_get_new_id;
+ commonctx->rw_ops->set_mapping = idmap_tdb2_set_mapping;
- ret = idmap_tdb2_sids_to_unixids_action(ctx->db, &state);
+ commonctx->private_data = ctx;
+ dom->private_data = commonctx;
- if (NT_STATUS_EQUAL(ret, STATUS_SOME_UNMAPPED) && !dom->read_only) {
- state.allocate_unmapped = true;
- ret = dbwrap_trans_do(ctx->db,
- idmap_tdb2_sids_to_unixids_action,
- &state);
+ ret = idmap_tdb2_open_db(dom);
+ if (!NT_STATUS_IS_OK(ret)) {
+ goto failed;
}
+ return NT_STATUS_OK;
+
+failed:
+ talloc_free(commonctx);
return ret;
}
-/*
- Close the idmap tdb instance
-*/
-static NTSTATUS idmap_tdb2_close(struct idmap_domain *dom)
-{
- /* don't do anything */
- return NT_STATUS_OK;
-}
-
static struct idmap_methods db_methods = {
.init = idmap_tdb2_db_init,
- .unixids_to_sids = idmap_tdb2_unixids_to_sids,
- .sids_to_unixids = idmap_tdb2_sids_to_unixids,
- .allocate_id = idmap_tdb2_get_new_id,
- .close_fn = idmap_tdb2_close
+ .unixids_to_sids = idmap_tdb_common_unixids_to_sids,
+ .sids_to_unixids = idmap_tdb_common_sids_to_unixids,
+ .allocate_id = idmap_tdb_common_get_new_id
};
+static_decl_idmap;
NTSTATUS idmap_tdb2_init(void)
{
return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "tdb2", &db_methods);
git.samba.org / sfrench / samba-autobuild / .git / blobdiff