Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
Copyright (C) Jeremy Allison 2006
Copyright (C) Simo Sorce 2003-2006
+ Copyright (C) Michael Adam 2009-2010
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
*/
#include "includes.h"
+#include "system/filesys.h"
#include "winbindd.h"
+#include "idmap.h"
+#include "idmap_rw.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 {
+ const char *script; /* script to provide idmaps */
+};
+
/* High water mark keys */
#define HWM_GROUP "GROUP HWM"
#define HWM_USER "USER HWM"
-static struct idmap_tdb2_state {
- /* User and group id pool */
- uid_t low_uid, high_uid; /* Range of uids to allocate */
- gid_t low_gid, high_gid; /* Range of gids to allocate */
- const char *idmap_script;
-} idmap_tdb2_state;
-
-
-
-/* handle to the permanent tdb */
-static struct db_context *idmap_tdb2;
-
-static NTSTATUS idmap_tdb2_alloc_load(void);
-
-static NTSTATUS idmap_tdb2_load_ranges(void)
+/*
+ * check and initialize high/low water marks in the db
+ */
+static NTSTATUS idmap_tdb2_init_hwm(struct idmap_domain *dom)
{
- uid_t low_uid = 0;
- uid_t high_uid = 0;
- gid_t low_gid = 0;
- gid_t high_gid = 0;
-
- if (!lp_idmap_uid(&low_uid, &high_uid)) {
- DEBUG(1, ("idmap uid missing\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
+ NTSTATUS status;
+ uint32_t low_id;
+ struct idmap_tdb_common_context *ctx;
- if (!lp_idmap_gid(&low_gid, &high_gid)) {
- DEBUG(1, ("idmap gid missing\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
+ ctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
- idmap_tdb2_state.low_uid = low_uid;
- idmap_tdb2_state.high_uid = high_uid;
- idmap_tdb2_state.low_gid = low_gid;
- idmap_tdb2_state.high_gid = high_gid;
+ /* Create high water marks for group and user id */
- if (idmap_tdb2_state.high_uid <= idmap_tdb2_state.low_uid) {
- DEBUG(1, ("idmap uid range missing or invalid\n"));
- DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ 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: %s\n", nt_errstr(status)));
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
}
- if (idmap_tdb2_state.high_gid <= idmap_tdb2_state.low_gid) {
- DEBUG(1, ("idmap gid range missing or invalid\n"));
- DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ 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: %s\n", nt_errstr(status)));
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
}
return NT_STATUS_OK;
}
+
/*
open the permanent tdb
*/
-static NTSTATUS idmap_tdb2_open_db(void)
+static NTSTATUS idmap_tdb2_open_db(struct idmap_domain *dom)
{
char *db_path;
+ struct idmap_tdb_common_context *ctx;
- if (idmap_tdb2) {
+ 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 */
- idmap_tdb2 = db_open(NULL, 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 (idmap_tdb2 == NULL) {
+ if (ctx->db == NULL) {
DEBUG(0, ("Unable to open idmap_tdb2 database '%s'\n",
db_path));
return NT_STATUS_UNSUCCESSFUL;
}
- /* load the ranges and high/low water marks */
- return idmap_tdb2_alloc_load();
+ return idmap_tdb2_init_hwm(dom);
}
+/**
+ * store a mapping in the database.
+ */
-/*
- load the idmap allocation ranges and high/low water marks
-*/
-static NTSTATUS idmap_tdb2_alloc_load(void)
-{
- NTSTATUS status;
- uint32 low_id;
-
- /* see if a idmap script is configured */
- idmap_tdb2_state.idmap_script = lp_parm_const_string(-1, "idmap",
- "script", NULL);
-
- if (idmap_tdb2_state.idmap_script) {
- DEBUG(1, ("using idmap script '%s'\n",
- idmap_tdb2_state.idmap_script));
- }
-
- /* load ranges */
-
- status = idmap_tdb2_load_ranges();
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- /* Create high water marks for group and user id */
-
- low_id = dbwrap_fetch_int32(idmap_tdb2, HWM_USER);
- if ((low_id == -1) || (low_id < idmap_tdb2_state.low_uid)) {
- if (!NT_STATUS_IS_OK(dbwrap_trans_store_int32(
- idmap_tdb2, HWM_USER,
- idmap_tdb2_state.low_uid))) {
- DEBUG(0, ("Unable to initialise user hwm in idmap "
- "database\n"));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
- }
-
- low_id = dbwrap_fetch_int32(idmap_tdb2, HWM_GROUP);
- if ((low_id == -1) || (low_id < idmap_tdb2_state.low_gid)) {
- if (!NT_STATUS_IS_OK(dbwrap_trans_store_int32(
- idmap_tdb2, HWM_GROUP,
- idmap_tdb2_state.low_gid))) {
- DEBUG(0, ("Unable to initialise group hwm in idmap "
- "database\n"));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
- }
-
- return NT_STATUS_OK;
-}
-
-
-/*
- Initialise idmap alloc database.
-*/
-static NTSTATUS idmap_tdb2_alloc_init(const char *params)
-{
- /* nothing to do - we want to avoid opening the permanent
- database if possible. Instead we load the params when we
- first need it. */
- return NT_STATUS_OK;
-}
-
-
-/*
- Allocate a new id.
-*/
-
-struct idmap_tdb2_allocate_id_context {
- const char *hwmkey;
- const char *hwmtype;
- uint32_t high_hwm;
- uint32_t hwm;
+struct idmap_tdb2_set_mapping_context {
+ const char *ksidstr;
+ const char *kidstr;
};
-static NTSTATUS idmap_tdb2_allocate_id_action(struct db_context *db,
+static NTSTATUS idmap_tdb2_set_mapping_action(struct db_context *db,
void *private_data)
{
+ TDB_DATA data;
NTSTATUS ret;
- struct idmap_tdb2_allocate_id_context *state;
- uint32_t hwm;
+ struct idmap_tdb2_set_mapping_context *state;
+ TALLOC_CTX *tmp_ctx = talloc_stackframe();
- state = (struct idmap_tdb2_allocate_id_context *)private_data;
+ state = (struct idmap_tdb2_set_mapping_context *)private_data;
- hwm = dbwrap_fetch_int32(db, state->hwmkey);
- if (hwm == -1) {
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- goto done;
- }
+ DEBUG(10, ("Storing %s <-> %s map\n", state->ksidstr, state->kidstr));
- /* 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;
+ /* check wheter sid mapping is already present in db */
+ ret = dbwrap_fetch_bystring(db, tmp_ctx, state->ksidstr, &data);
+ if (NT_STATUS_IS_OK(ret)) {
+ ret = NT_STATUS_OBJECT_NAME_COLLISION;
goto done;
}
- /* fetch a new id and increment it */
- ret = dbwrap_trans_change_uint32_atomic(db, state->hwmkey, &hwm, 1);
+ ret = dbwrap_store_bystring(db, state->ksidstr,
+ string_term_tdb_data(state->kidstr),
+ TDB_INSERT);
if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(1, ("Fatal error while fetching a new %s value\n!",
- state->hwmtype));
+ DEBUG(0, ("Error storing SID -> ID: %s\n", nt_errstr(ret)));
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;
+ ret = dbwrap_store_bystring(db, state->kidstr,
+ string_term_tdb_data(state->ksidstr),
+ TDB_INSERT);
+ if (!NT_STATUS_IS_OK(ret)) {
+ DEBUG(0, ("Error storing ID -> SID: %s\n", nt_errstr(ret)));
+ /* try to remove the previous stored SID -> ID map */
+ dbwrap_delete_bystring(db, state->ksidstr);
goto done;
}
- ret = NT_STATUS_OK;
- state->hwm = hwm;
+ DEBUG(10,("Stored %s <-> %s\n", state->ksidstr, state->kidstr));
done:
+ talloc_free(tmp_ctx);
return ret;
}
-static NTSTATUS idmap_tdb2_allocate_id(struct unixid *xid)
+static NTSTATUS idmap_tdb2_set_mapping(struct idmap_domain *dom, const struct id_map *map)
{
- const char *hwmkey;
- const char *hwmtype;
- uint32_t high_hwm;
- uint32_t hwm = 0;
- NTSTATUS status;
- struct idmap_tdb2_allocate_id_context state;
-
- status = idmap_tdb2_open_db();
- NT_STATUS_NOT_OK_RETURN(status);
-
- /* Get current high water mark */
- switch (xid->type) {
-
- case ID_TYPE_UID:
- hwmkey = HWM_USER;
- hwmtype = "UID";
- high_hwm = idmap_tdb2_state.high_uid;
- break;
-
- case ID_TYPE_GID:
- hwmkey = HWM_GROUP;
- hwmtype = "GID";
- high_hwm = idmap_tdb2_state.high_gid;
- break;
+ struct idmap_tdb2_context *ctx;
+ NTSTATUS ret;
+ char *ksidstr, *kidstr;
+ struct idmap_tdb_common_context *commonctx;
+ struct idmap_tdb2_set_mapping_context state;
- default:
- DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
+ if (!map || !map->sid) {
return NT_STATUS_INVALID_PARAMETER;
}
- state.hwm = hwm;
- state.high_hwm = high_hwm;
- state.hwmtype = hwmtype;
- state.hwmkey = hwmkey;
-
- status = dbwrap_trans_do(idmap_tdb2, idmap_tdb2_allocate_id_action,
- &state);
-
- if (NT_STATUS_IS_OK(status)) {
- xid->id = state.hwm;
- DEBUG(10,("New %s = %d\n", hwmtype, hwm));
- } else {
- DEBUG(1, ("Error allocating a new %s\n", hwmtype));
- }
+ ksidstr = kidstr = NULL;
- return status;
-}
+ /* TODO: should we filter a set_mapping using low/high filters ? */
-/*
- Get current highest id.
-*/
-static NTSTATUS idmap_tdb2_get_hwm(struct unixid *xid)
-{
- const char *hwmkey;
- const char *hwmtype;
- uint32_t hwm;
- uint32_t high_hwm;
- NTSTATUS status;
+ commonctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
- status = idmap_tdb2_open_db();
- NT_STATUS_NOT_OK_RETURN(status);
+ ctx = talloc_get_type(commonctx->private_data,
+ struct idmap_tdb2_context);
- /* Get current high water mark */
- switch (xid->type) {
+ switch (map->xid.type) {
case ID_TYPE_UID:
- hwmkey = HWM_USER;
- hwmtype = "UID";
- high_hwm = idmap_tdb2_state.high_uid;
+ kidstr = talloc_asprintf(ctx, "UID %lu", (unsigned long)map->xid.id);
break;
case ID_TYPE_GID:
- hwmkey = HWM_GROUP;
- hwmtype = "GID";
- high_hwm = idmap_tdb2_state.high_gid;
+ kidstr = talloc_asprintf(ctx, "GID %lu", (unsigned long)map->xid.id);
break;
default:
+ DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
return NT_STATUS_INVALID_PARAMETER;
}
- if ((hwm = dbwrap_fetch_int32(idmap_tdb2, hwmkey)) == -1) {
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- xid->id = hwm;
-
- /* Warn if it is out of range */
- if (hwm >= high_hwm) {
- DEBUG(0, ("Warning: %s range full!! (max: %lu)\n",
- hwmtype, (unsigned long)high_hwm));
- }
-
- return NT_STATUS_OK;
-}
-
-/*
- Set high id.
-*/
-static NTSTATUS idmap_tdb2_set_hwm(struct unixid *xid)
-{
- /* not supported, or we would invalidate the cache tdb on
- other nodes */
- DEBUG(0,("idmap_tdb2_set_hwm not supported\n"));
- return NT_STATUS_NOT_SUPPORTED;
-}
-
-/*
- Close the alloc tdb
-*/
-static NTSTATUS idmap_tdb2_alloc_close(void)
-{
- /* don't actually close it */
- return NT_STATUS_OK;
-}
-
-/*
- IDMAP MAPPING TDB BACKEND
-*/
-struct idmap_tdb2_context {
- uint32_t filter_low_id;
- uint32_t filter_high_id;
-};
-
-/*
- Initialise idmap database.
-*/
-static NTSTATUS idmap_tdb2_db_init(struct idmap_domain *dom,
- const char *params)
-{
- NTSTATUS ret;
- struct idmap_tdb2_context *ctx;
- NTSTATUS status;
-
- status = idmap_tdb2_open_db();
- NT_STATUS_NOT_OK_RETURN(status);
-
- ctx = talloc(dom, struct idmap_tdb2_context);
- if ( ! ctx) {
- DEBUG(0, ("Out of memory!\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- if (strequal(dom->name, "*")) {
- uid_t low_uid = 0;
- uid_t high_uid = 0;
- gid_t low_gid = 0;
- gid_t high_gid = 0;
-
- ctx->filter_low_id = 0;
- ctx->filter_high_id = 0;
-
- if (lp_idmap_uid(&low_uid, &high_uid)) {
- ctx->filter_low_id = low_uid;
- ctx->filter_high_id = high_uid;
- } else {
- DEBUG(3, ("Warning: 'idmap uid' not set!\n"));
- }
-
- if (lp_idmap_gid(&low_gid, &high_gid)) {
- if ((low_gid != low_uid) || (high_gid != high_uid)) {
- DEBUG(1, ("Warning: 'idmap uid' and 'idmap gid'"
- " ranges do not agree -- building "
- "intersection\n"));
- ctx->filter_low_id = MAX(ctx->filter_low_id,
- low_gid);
- ctx->filter_high_id = MIN(ctx->filter_high_id,
- high_gid);
- }
- } else {
- DEBUG(3, ("Warning: 'idmap gid' not set!\n"));
- }
- } else {
- char *config_option = NULL;
- const char *range;
- 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;
- }
-
- range = lp_parm_const_string(-1, config_option, "range", NULL);
- if (( ! range) ||
- (sscanf(range, "%u - %u", &ctx->filter_low_id, &ctx->filter_high_id) != 2))
- {
- ctx->filter_low_id = 0;
- ctx->filter_high_id = 0;
- }
-
- talloc_free(config_option);
- }
-
- if (ctx->filter_low_id > ctx->filter_high_id) {
- ctx->filter_low_id = 0;
- ctx->filter_high_id = 0;
- }
-
- dom->private_data = ctx;
-
- return NT_STATUS_OK;
-
-failed:
- talloc_free(ctx);
- return ret;
-}
-
-struct idmap_tdb2_set_mapping_context {
- const char *ksidstr;
- const char *kidstr;
-};
-
-static NTSTATUS idmap_tdb2_set_mapping_action(struct db_context *db,
- void *private_data)
-{
- TDB_DATA data;
- NTSTATUS ret;
- struct idmap_tdb2_set_mapping_context *state;
- TALLOC_CTX *tmp_ctx = talloc_stackframe();
-
- state = (struct idmap_tdb2_set_mapping_context *)private_data;
-
- 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 = NT_STATUS_OBJECT_NAME_COLLISION;
+ if (kidstr == NULL) {
+ DEBUG(0, ("ERROR: Out of memory!\n"));
+ ret = NT_STATUS_NO_MEMORY;
goto done;
}
- ret = dbwrap_store_bystring(db, state->ksidstr,
- string_term_tdb_data(state->kidstr),
- TDB_INSERT);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0, ("Error storing SID -> ID: %s\n", nt_errstr(ret)));
+ ksidstr = sid_string_talloc(ctx, map->sid);
+ if (ksidstr == NULL) {
+ DEBUG(0, ("Out of memory!\n"));
+ ret = NT_STATUS_NO_MEMORY;
goto done;
}
- ret = dbwrap_store_bystring(db, state->kidstr,
- string_term_tdb_data(state->ksidstr),
- TDB_INSERT);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0, ("Error storing ID -> SID: %s\n", nt_errstr(ret)));
- /* try to remove the previous stored SID -> ID map */
- dbwrap_delete_bystring(db, state->ksidstr);
- goto done;
- }
+ state.ksidstr = ksidstr;
+ state.kidstr = kidstr;
- DEBUG(10,("Stored %s <-> %s\n", state->ksidstr, state->kidstr));
+ ret = dbwrap_trans_do(commonctx->db, idmap_tdb2_set_mapping_action,
+ &state);
done:
- talloc_free(tmp_ctx);
+ talloc_free(ksidstr);
+ talloc_free(kidstr);
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, ...)
{
char line[64];
unsigned long v;
- cmd = talloc_asprintf(ctx, "%s ", idmap_tdb2_state.idmap_script);
+ cmd = talloc_asprintf(ctx, "%s ", ctx->script);
NT_STATUS_HAVE_NO_MEMORY(cmd);
va_start(ap, fmt);
} else if (strncmp(line, "SID:S-", 6) == 0) {
if (!string_to_sid(map->sid, &line[4])) {
DEBUG(0,("Bad SID in '%s' from idmap script %s\n",
- line, idmap_tdb2_state.idmap_script));
+ line, ctx->script));
return NT_STATUS_NONE_MAPPED;
}
} else {
DEBUG(0,("Bad reply '%s' from idmap script %s\n",
- line, idmap_tdb2_state.idmap_script));
+ line, ctx->script));
return NT_STATUS_NONE_MAPPED;
}
/*
Single id to sid lookup function.
*/
-static NTSTATUS idmap_tdb2_id_to_sid(struct idmap_tdb2_context *ctx, struct id_map *map)
+static NTSTATUS idmap_tdb2_id_to_sid(struct idmap_domain *dom, struct id_map *map)
{
NTSTATUS ret;
TDB_DATA data;
char *keystr;
NTSTATUS status;
+ struct idmap_tdb_common_context *commonctx;
+ struct idmap_tdb2_context *ctx;
- status = idmap_tdb2_open_db();
- NT_STATUS_NOT_OK_RETURN(status);
- if (!ctx || !map) {
+ if (!dom || !map) {
return NT_STATUS_INVALID_PARAMETER;
}
+ status = idmap_tdb2_open_db(dom);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ 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 ((ctx->filter_low_id && (map->xid.id < ctx->filter_low_id)) ||
- (ctx->filter_high_id && (map->xid.id > ctx->filter_high_id))) {
+ if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
- map->xid.id, ctx->filter_low_id, ctx->filter_high_id));
+ map->xid.id, dom->low_id, dom->high_id));
return NT_STATUS_NONE_MAPPED;
}
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(idmap_tdb2, 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;
DEBUG(10,("Record %s not found\n", keystr));
- if (idmap_tdb2_state.idmap_script == NULL) {
+ if (ctx->script == NULL) {
ret = NT_STATUS_NONE_MAPPED;
goto done;
}
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(idmap_tdb2, idmap_tdb2_set_mapping_action,
+ ret = dbwrap_trans_do(commonctx->db,
+ idmap_tdb2_set_mapping_action,
&store_state);
goto done;
}
/*
Single sid to id lookup function.
*/
-static NTSTATUS idmap_tdb2_sid_to_id(struct idmap_tdb2_context *ctx, struct id_map *map)
+static NTSTATUS idmap_tdb2_sid_to_id(struct idmap_domain *dom, struct id_map *map)
{
NTSTATUS ret;
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();
+ ret = idmap_tdb2_open_db(dom);
NT_STATUS_NOT_OK_RETURN(ret);
+ 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(0, ("Out of memory!\n"));
DEBUG(10,("Fetching record %s\n", keystr));
/* Check if sid is present in database */
- data = dbwrap_fetch_bystring(idmap_tdb2, 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;
DEBUG(10,(__location__ " Record %s not found\n", keystr));
- if (idmap_tdb2_state.idmap_script == NULL) {
+ if (ctx->script == NULL) {
ret = NT_STATUS_NONE_MAPPED;
goto done;
}
ret = idmap_tdb2_script(ctx, map, "SIDTOID %s", keystr);
- /* store it on shared storage */
if (!NT_STATUS_IS_OK(ret)) {
goto done;
}
+ /* apply filters before returning result */
+ if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
+ DEBUG(5, ("Script returned id (%u) out of range "
+ "(%u - %u). Filtered!\n",
+ map->xid.id, dom->low_id, dom->high_id));
+ ret = NT_STATUS_NONE_MAPPED;
+ goto done;
+ }
+
idstr = talloc_asprintf(tmp_ctx, "%cID %lu",
map->xid.type == ID_TYPE_UID?'U':'G',
(unsigned long)map->xid.id);
store_state.ksidstr = keystr;
store_state.kidstr = idstr;
- ret = dbwrap_trans_do(idmap_tdb2, idmap_tdb2_set_mapping_action,
+ ret = dbwrap_trans_do(commonctx->db,
+ idmap_tdb2_set_mapping_action,
&store_state);
goto done;
}
}
/* apply filters before returning result */
- if ((ctx->filter_low_id && (map->xid.id < ctx->filter_low_id)) ||
- (ctx->filter_high_id && (map->xid.id > ctx->filter_high_id))) {
+ if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
- map->xid.id, ctx->filter_low_id, ctx->filter_high_id));
+ map->xid.id, dom->low_id, dom->high_id));
ret = NT_STATUS_NONE_MAPPED;
}
}
/*
- 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)
{
- struct idmap_tdb2_context *ctx;
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;
}
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
-
- for (i = 0; ids[i]; i++) {
- ret = idmap_tdb2_id_to_sid(ctx, 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.
-*/
-static NTSTATUS idmap_tdb2_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
-{
- struct idmap_tdb2_context *ctx;
- NTSTATUS ret;
- int i;
-
- /* initialize the status to avoid suprise */
- for (i = 0; ids[i]; i++) {
- ids[i]->status = ID_UNKNOWN;
+ ctx = talloc_zero(commonctx, struct idmap_tdb2_context);
+ if (!ctx) {
+ DEBUG(0, ("Out of memory!\n"));
+ ret = NT_STATUS_NO_MEMORY;
+ goto failed;
}
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
-
- for (i = 0; ids[i]; i++) {
- ret = idmap_tdb2_sid_to_id(ctx, 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;
+ 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);
- ret = NT_STATUS_OK;
-
-done:
- return ret;
-}
-
-
-/*
- set a mapping.
-*/
-
-static NTSTATUS idmap_tdb2_set_mapping(struct idmap_domain *dom, const struct id_map *map)
-{
- struct idmap_tdb2_context *ctx;
- NTSTATUS ret;
- char *ksidstr, *kidstr;
- struct idmap_tdb2_set_mapping_context state;
-
- if (!map || !map->sid) {
- return NT_STATUS_INVALID_PARAMETER;
+ 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"));
}
- ksidstr = kidstr = NULL;
-
- /* TODO: should we filter a set_mapping using low/high filters ? */
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb2_context);
-
- switch (map->xid.type) {
-
- case ID_TYPE_UID:
- kidstr = talloc_asprintf(ctx, "UID %lu", (unsigned long)map->xid.id);
- break;
-
- case ID_TYPE_GID:
- kidstr = talloc_asprintf(ctx, "GID %lu", (unsigned long)map->xid.id);
- break;
-
- default:
- DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
- return NT_STATUS_INVALID_PARAMETER;
+ if (strequal(dom->name, "*") && ctx->script == NULL) {
+ /* fall back to idmap:script for backwards compatibility */
+ ctx->script = idmap_script;
}
- if (kidstr == NULL) {
- DEBUG(0, ("ERROR: Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
+ if (ctx->script) {
+ DEBUG(1, ("using idmap script '%s'\n", ctx->script));
}
- if (!(ksidstr = sid_string_talloc(ctx, map->sid))) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
+ commonctx->max_id = dom->high_id;
+ commonctx->hwmkey_uid = HWM_USER;
+ commonctx->hwmkey_gid = HWM_GROUP;
- state.ksidstr = ksidstr;
- state.kidstr = kidstr;
+ commonctx->sid_to_unixid_fn = idmap_tdb2_sid_to_id;
+ commonctx->unixid_to_sid_fn = idmap_tdb2_id_to_sid;
- ret = dbwrap_trans_do(idmap_tdb2, idmap_tdb2_set_mapping_action,
- &state);
+ commonctx->rw_ops->get_new_id = idmap_tdb_common_get_new_id;
+ commonctx->rw_ops->set_mapping = idmap_tdb2_set_mapping;
-done:
- talloc_free(ksidstr);
- talloc_free(kidstr);
- return ret;
-}
+ commonctx->private_data = ctx;
+ dom->private_data = commonctx;
-/*
- remove a mapping.
-*/
-static NTSTATUS idmap_tdb2_remove_mapping(struct idmap_domain *dom, const struct id_map *map)
-{
- /* not supported as it would invalidate the cache tdb on other
- nodes */
- DEBUG(0,("idmap_tdb2_remove_mapping not supported\n"));
- return NT_STATUS_NOT_SUPPORTED;
-}
+ ret = idmap_tdb2_open_db(dom);
+ if (!NT_STATUS_IS_OK(ret)) {
+ goto failed;
+ }
-/*
- Close the idmap tdb instance
-*/
-static NTSTATUS idmap_tdb2_close(struct idmap_domain *dom)
-{
- /* don't do anything */
return NT_STATUS_OK;
-}
-
-/*
- Dump all mappings out
-*/
-static NTSTATUS idmap_tdb2_dump_data(struct idmap_domain *dom, struct id_map **maps, int *num_maps)
-{
- DEBUG(0,("idmap_tdb2_dump_data not supported\n"));
- return NT_STATUS_NOT_SUPPORTED;
+failed:
+ talloc_free(commonctx);
+ return ret;
}
+
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,
- .set_mapping = idmap_tdb2_set_mapping,
- .remove_mapping = idmap_tdb2_remove_mapping,
- .dump_data = idmap_tdb2_dump_data,
- .close_fn = idmap_tdb2_close
-};
-
-static struct idmap_alloc_methods db_alloc_methods = {
- .init = idmap_tdb2_alloc_init,
- .allocate_id = idmap_tdb2_allocate_id,
- .get_id_hwm = idmap_tdb2_get_hwm,
- .set_id_hwm = idmap_tdb2_set_hwm,
- .close_fn = idmap_tdb2_alloc_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)
{
- NTSTATUS ret;
-
- /* register both backends */
- ret = smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "tdb2", &db_alloc_methods);
- if (! NT_STATUS_IS_OK(ret)) {
- DEBUG(0, ("Unable to register idmap alloc tdb2 module: %s\n", get_friendly_nt_error_msg(ret)));
- return ret;
- }
-
return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "tdb2", &db_methods);
}
git.samba.org / sfrench / samba-autobuild / .git / blobdiff