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Diffstat (limited to 'source3/sam/idmap_tdb.c')
| -rw-r--r-- | source3/sam/idmap_tdb.c | 526 |
1 files changed, 0 insertions, 526 deletions
diff --git a/source3/sam/idmap_tdb.c b/source3/sam/idmap_tdb.c deleted file mode 100644 index ec365b603d..0000000000 --- a/source3/sam/idmap_tdb.c +++ /dev/null @@ -1,526 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - idmap TDB backend - - Copyright (C) Tim Potter 2000 - Copyright (C) Anthony Liguori 2003 - Copyright (C) Simo Sorce 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" - -#undef DBGC_CLASS -#define DBGC_CLASS DBGC_IDMAP - -/* High water mark keys */ -#define HWM_GROUP "GROUP HWM" -#define HWM_USER "USER HWM" - -/* idmap version determines auto-conversion */ -#define IDMAP_VERSION 2 - -/* Globals */ -static TDB_CONTEXT *idmap_tdb; - -static struct idmap_state { - - /* User and group id pool */ - - uid_t uid_low, uid_high; /* Range of uids to allocate */ - gid_t gid_low, gid_high; /* Range of gids to allocate */ -} idmap_state; - - -/* FIXME: let handle conversions when all things work ok. - I think it is better to handle the conversion at - upgrade time and leave the old db intact. - That would also make easier to go back to 2.2 if needed - ---SSS */ -#if 0 - -/* convert one record to the new format */ -static int tdb_convert_fn(TDB_CONTEXT * tdb, TDB_DATA key, TDB_DATA data, - void *ignored) -{ - struct winbindd_domain *domain; - char *p; - DOM_SID sid; - uint32 rid; - fstring keystr; - fstring dom_name; - TDB_DATA key2; - - p = strchr(key.dptr, '/'); - if (!p) - return 0; - - *p = 0; - fstrcpy(dom_name, key.dptr); - *p++ = '/'; - - domain = find_domain_from_name(dom_name); - if (!domain) { - /* We must delete the old record. */ - DEBUG(0, - ("winbindd: tdb_convert_fn : Unable to find domain %s\n", - dom_name)); - DEBUG(0, - ("winbindd: tdb_convert_fn : deleting record %s\n", - key.dptr)); - tdb_delete(idmap_tdb, key); - return 0; - } - - rid = atoi(p); - - sid_copy(&sid, &domain->sid); - sid_append_rid(&sid, rid); - - sid_to_string(keystr, &sid); - key2.dptr = keystr; - key2.dsize = strlen(keystr) + 1; - - if (tdb_store(idmap_tdb, key2, data, TDB_INSERT) != 0) { - /* not good! */ - DEBUG(0, - ("winbindd: tdb_convert_fn : Unable to update record %s\n", - key2.dptr)); - DEBUG(0, - ("winbindd: tdb_convert_fn : conversion failed - idmap corrupt ?\n")); - return -1; - } - - if (tdb_store(idmap_tdb, data, key2, TDB_REPLACE) != 0) { - /* not good! */ - DEBUG(0, - ("winbindd: tdb_convert_fn : Unable to update record %s\n", - data.dptr)); - DEBUG(0, - ("winbindd: tdb_convert_fn : conversion failed - idmap corrupt ?\n")); - return -1; - } - - tdb_delete(idmap_tdb, key); - - return 0; -} - -/***************************************************************************** - Convert the idmap database from an older version. -*****************************************************************************/ -static BOOL tdb_idmap_convert(const char *idmap_name) -{ - int32 vers = tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION"); - BOOL bigendianheader = - (idmap_tdb->flags & TDB_BIGENDIAN) ? True : False; - - if (vers == IDMAP_VERSION) - return True; - - if (((vers == -1) && bigendianheader) - || (IREV(vers) == IDMAP_VERSION)) { - /* Arrggghh ! Bytereversed or old big-endian - make order independent ! */ - /* - * high and low records were created on a - * big endian machine and will need byte-reversing. - */ - - int32 wm; - - wm = tdb_fetch_int32(idmap_tdb, HWM_USER); - - if (wm != -1) { - wm = IREV(wm); - } else - wm = server_state.uid_low; - - if (tdb_store_int32(idmap_tdb, HWM_USER, wm) == -1) { - DEBUG(0, - ("tdb_idmap_convert: Unable to byteswap user hwm in idmap database\n")); - return False; - } - - wm = tdb_fetch_int32(idmap_tdb, HWM_GROUP); - if (wm != -1) { - wm = IREV(wm); - } else - wm = server_state.gid_low; - - if (tdb_store_int32(idmap_tdb, HWM_GROUP, wm) == -1) { - DEBUG(0, - ("tdb_idmap_convert: Unable to byteswap group hwm in idmap database\n")); - return False; - } - } - - /* the old format stored as DOMAIN/rid - now we store the SID direct */ - tdb_traverse(idmap_tdb, tdb_convert_fn, NULL); - - if (tdb_store_int32(idmap_tdb, "IDMAP_VERSION", IDMAP_VERSION) == - -1) { - DEBUG(0, - ("tdb_idmap_convert: Unable to byteswap group hwm in idmap database\n")); - return False; - } - - return True; -} -#endif - -/* Allocate either a user or group id from the pool */ -static NTSTATUS db_allocate_id(unid_t *id, int id_type) -{ - int hwm; - - if (!id) return NT_STATUS_INVALID_PARAMETER; - - /* Get current high water mark */ - switch (id_type & ID_TYPEMASK) { - case ID_USERID: - if ((hwm = tdb_fetch_int32(idmap_tdb, HWM_USER)) == -1) { - return NT_STATUS_INTERNAL_DB_ERROR; - } - - if (hwm > idmap_state.uid_high) { - DEBUG(0, ("idmap Fatal Error: UID range full!!\n")); - return NT_STATUS_UNSUCCESSFUL; - } - - (*id).uid = hwm++; - - /* Store new high water mark */ - tdb_store_int32(idmap_tdb, HWM_USER, hwm); - break; - case ID_GROUPID: - if ((hwm = tdb_fetch_int32(idmap_tdb, HWM_GROUP)) == -1) { - return NT_STATUS_INTERNAL_DB_ERROR; - } - - if (hwm > idmap_state.gid_high) { - DEBUG(0, ("idmap Fatal Error: GID range full!!\n")); - return NT_STATUS_UNSUCCESSFUL; - } - - (*id).gid = hwm++; - - /* Store new high water mark */ - tdb_store_int32(idmap_tdb, HWM_GROUP, hwm); - break; - default: - return NT_STATUS_INVALID_PARAMETER; - } - - return NT_STATUS_OK; -} - -/* Get a sid from an id */ -static NTSTATUS db_get_sid_from_id(DOM_SID *sid, unid_t id, int id_type) -{ - TDB_DATA key, data; - fstring keystr; - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - - if (!sid) return NT_STATUS_INVALID_PARAMETER; - - switch (id_type & ID_TYPEMASK) { - case ID_USERID: - slprintf(keystr, sizeof(keystr), "UID %d", id.uid); - break; - case ID_GROUPID: - slprintf(keystr, sizeof(keystr), "GID %d", id.gid); - break; - default: - return NT_STATUS_UNSUCCESSFUL; - } - - key.dptr = keystr; - key.dsize = strlen(keystr) + 1; - - data = tdb_fetch(idmap_tdb, key); - - if (data.dptr) { - if (string_to_sid(sid, data.dptr)) { - ret = NT_STATUS_OK; - } - SAFE_FREE(data.dptr); - } - - return ret; -} - -/* Get an id from a sid */ -static NTSTATUS db_get_id_from_sid(unid_t *id, int *id_type, const DOM_SID *sid) -{ - TDB_DATA data, key; - fstring keystr; - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - - if (!sid || !id || !id_type) return NT_STATUS_INVALID_PARAMETER; - - /* Check if sid is present in database */ - sid_to_string(keystr, sid); - - key.dptr = keystr; - key.dsize = strlen(keystr) + 1; - - data = tdb_fetch(idmap_tdb, key); - - if (data.dptr) { - int type = *id_type & ID_TYPEMASK; - fstring scanstr; - - if (type == ID_EMPTY || type == ID_USERID) { - /* Parse and return existing uid */ - fstrcpy(scanstr, "UID %d"); - - if (sscanf(data.dptr, scanstr, &((*id).uid)) == 1) { - /* uid ok? */ - if (type == ID_EMPTY) { - *id_type = ID_USERID; - } - ret = NT_STATUS_OK; - goto idok; - } - } - - if (type == ID_EMPTY || type == ID_GROUPID) { - /* Parse and return existing gid */ - fstrcpy(scanstr, "GID %d"); - - if (sscanf(data.dptr, scanstr, &((*id).gid)) == 1) { - /* gid ok? */ - if (type == ID_EMPTY) { - *id_type = ID_GROUPID; - } - ret = NT_STATUS_OK; - } - } -idok: - SAFE_FREE(data.dptr); - - } else if (!(*id_type & ID_NOMAP) && - (((*id_type & ID_TYPEMASK) == ID_USERID) - || (*id_type & ID_TYPEMASK) == ID_GROUPID)) { - - /* Allocate a new id for this sid */ - ret = db_allocate_id(id, *id_type); - if (NT_STATUS_IS_OK(ret)) { - fstring keystr2; - - /* Store new id */ - if (*id_type & ID_USERID) { - slprintf(keystr2, sizeof(keystr2), "UID %d", (*id).uid); - } else { - slprintf(keystr2, sizeof(keystr2), "GID %d", (*id).gid); - } - - data.dptr = keystr2; - data.dsize = strlen(keystr2) + 1; - - if (tdb_store(idmap_tdb, key, data, TDB_REPLACE) == -1) { - /* TODO: print tdb error !! */ - return NT_STATUS_UNSUCCESSFUL; - } - if (tdb_store(idmap_tdb, data, key, TDB_REPLACE) == -1) { - /* TODO: print tdb error !! */ - return NT_STATUS_UNSUCCESSFUL; - } - - ret = NT_STATUS_OK; - } - } - - return ret; -} - -static NTSTATUS db_set_mapping(DOM_SID *sid, unid_t id, int id_type) -{ - TDB_DATA ksid, kid; - fstring ksidstr; - fstring kidstr; - - if (!sid) return NT_STATUS_INVALID_PARAMETER; - - sid_to_string(ksidstr, sid); - - ksid.dptr = ksidstr; - ksid.dsize = strlen(ksidstr) + 1; - - id_type &= ID_TYPEMASK; - if (id_type & ID_USERID) { - slprintf(kidstr, sizeof(kidstr), "UID %d", id.uid); - } else if (id_type & ID_GROUPID) { - slprintf(kidstr, sizeof(kidstr), "GID %d", id.gid); - } else { - return NT_STATUS_INVALID_PARAMETER; - } - - kid.dptr = kidstr; - kid.dsize = strlen(kidstr) + 1; - - if (tdb_store(idmap_tdb, ksid, kid, TDB_INSERT) == -1) { - /* TODO: print tdb error !! */ - return NT_STATUS_UNSUCCESSFUL; - } - if (tdb_store(idmap_tdb, kid, ksid, TDB_INSERT) == -1) { - /* TODO: print tdb error !! */ - return NT_STATUS_UNSUCCESSFUL; - } - return NT_STATUS_OK; -} - -/***************************************************************************** - Initialise idmap database. -*****************************************************************************/ -static NTSTATUS db_idmap_init(const char *db_name) -{ - /* Open tdb cache */ - if (!(idmap_tdb = tdb_open_log(lock_path(db_name), 0, - TDB_DEFAULT, O_RDWR | O_CREAT, - 0600))) { - DEBUG(0, ("idmap_init: Unable to open idmap database\n")); - return NT_STATUS_UNSUCCESSFUL; - } - -#if 0 - /* possibly convert from an earlier version */ - if (!tdb_idmap_convert(lock_path("winbind_idmap.tdb"))) { - DEBUG(0, - ("idmap_init: Unable to open old idmap database\n")); - return False; - } -#endif - - /* Create high water marks for group and user id */ - if (tdb_fetch_int32(idmap_tdb, HWM_USER) == -1) { - if (tdb_store_int32(idmap_tdb, HWM_USER, idmap_state.uid_low) == -1) { - DEBUG(0, ("idmap_init: Unable to initialise user hwm in idmap database\n")); - return NT_STATUS_INTERNAL_DB_ERROR; - } - } - - if (tdb_fetch_int32(idmap_tdb, HWM_GROUP) == -1) { - if (tdb_store_int32(idmap_tdb, HWM_GROUP, idmap_state.gid_low) == -1) { - DEBUG(0, ("idmap_init: Unable to initialise group hwm in idmap database\n")); - return NT_STATUS_INTERNAL_DB_ERROR; - } - } - - return NT_STATUS_OK; -} - -/* Close the tdb */ -static NTSTATUS db_idmap_close(void) -{ - if (idmap_tdb) { - if (tdb_close(idmap_tdb) == 0) { - return NT_STATUS_OK; - } else { - return NT_STATUS_UNSUCCESSFUL; - } - } - return NT_STATUS_OK; -} - - -/* Dump status information to log file. Display different stuff based on - the debug level: - - Debug Level Information Displayed - ================================================================= - 0 Percentage of [ug]id range allocated - 0 High water marks (next allocated ids) -*/ - -#define DUMP_INFO 0 - -static void db_idmap_status(void) -{ - int user_hwm, group_hwm; - - DEBUG(0, ("winbindd idmap status:\n")); - - /* Get current high water marks */ - - if ((user_hwm = tdb_fetch_int32(idmap_tdb, HWM_USER)) == -1) { - DEBUG(DUMP_INFO, - ("\tCould not get userid high water mark!\n")); - } - - if ((group_hwm = tdb_fetch_int32(idmap_tdb, HWM_GROUP)) == -1) { - DEBUG(DUMP_INFO, - ("\tCould not get groupid high water mark!\n")); - } - - /* Display next ids to allocate */ - - if (user_hwm != -1) { - DEBUG(DUMP_INFO, - ("\tNext userid to allocate is %d\n", user_hwm)); - } - - if (group_hwm != -1) { - DEBUG(DUMP_INFO, - ("\tNext groupid to allocate is %d\n", group_hwm)); - } - - /* Display percentage of id range already allocated. */ - - if (user_hwm != -1) { - int num_users = user_hwm - idmap_state.uid_low; - int total_users = - idmap_state.uid_high - idmap_state.uid_low; - - DEBUG(DUMP_INFO, - ("\tUser id range is %d%% full (%d of %d)\n", - num_users * 100 / total_users, num_users, - total_users)); - } - - if (group_hwm != -1) { - int num_groups = group_hwm - idmap_state.gid_low; - int total_groups = - idmap_state.gid_high - idmap_state.gid_low; - - DEBUG(DUMP_INFO, - ("\tGroup id range is %d%% full (%d of %d)\n", - num_groups * 100 / total_groups, num_groups, - total_groups)); - } - - /* Display complete mapping of users and groups to rids */ -} - -struct idmap_methods db_methods = { - - db_idmap_init, - db_get_sid_from_id, - db_get_id_from_sid, - db_set_mapping, - db_idmap_close, - db_idmap_status - -}; - -NTSTATUS idmap_reg_tdb(struct idmap_methods **meth) -{ - *meth = &db_methods; - - return NT_STATUS_OK; -} - |