[SCM] Samba Shared Repository - branch master updated -
4feafd7c7be947bb38856dee79f057b2671151f3
Stefan Metzmacher
metze at samba.org
Mon Jan 19 16:07:55 GMT 2009
The branch, master has been updated
via 4feafd7c7be947bb38856dee79f057b2671151f3 (commit)
via 535311d1875a4302a1c42d92046d2cdc8d3ef4ef (commit)
via a83b327f1bec10f18ebe59c2fde7fe74228149f2 (commit)
from aa79f76b0cfcf402bdf955cdf8356d619ace0b68 (commit)
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 4feafd7c7be947bb38856dee79f057b2671151f3
Author: Stefan Metzmacher <metze at samba.org>
Date: Tue Dec 16 21:14:36 2008 +0100
s3:idmap_tdb: convert to the dbwrap api
metze
commit 535311d1875a4302a1c42d92046d2cdc8d3ef4ef
Author: Stefan Metzmacher <metze at samba.org>
Date: Wed Dec 17 08:53:31 2008 +0100
s3:dbwrap: add dbwrap_delete(), dbwrap_store() and dbwrap_fetch()
The _bystring function are now just tiny wrappers.
metze
commit a83b327f1bec10f18ebe59c2fde7fe74228149f2
Author: Stefan Metzmacher <metze at samba.org>
Date: Wed Dec 17 08:35:35 2008 +0100
s3:dbwrap: add get_flags() hook to db_context
metze
-----------------------------------------------------------------------
Summary of changes:
source3/include/dbwrap.h | 6 +
source3/lib/dbwrap.c | 34 +++-
source3/lib/dbwrap_ctdb.c | 8 +
source3/lib/dbwrap_tdb.c | 9 +
source3/winbindd/idmap_tdb.c | 467 ++++++++++++++++++++----------------------
5 files changed, 272 insertions(+), 252 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source3/include/dbwrap.h b/source3/include/dbwrap.h
index 46833fa..aad4ccd 100644
--- a/source3/include/dbwrap.h
+++ b/source3/include/dbwrap.h
@@ -42,6 +42,7 @@ struct db_context {
void *private_data),
void *private_data);
int (*get_seqnum)(struct db_context *db);
+ int (*get_flags)(struct db_context *db);
int (*transaction_start)(struct db_context *db);
int (*transaction_commit)(struct db_context *db);
int (*transaction_cancel)(struct db_context *db);
@@ -82,6 +83,11 @@ struct db_context *db_open_file(TALLOC_CTX *mem_ctx,
int open_flags, mode_t mode);
+NTSTATUS dbwrap_delete(struct db_context *db, TDB_DATA key);
+NTSTATUS dbwrap_store(struct db_context *db, TDB_DATA key,
+ TDB_DATA data, int flags);
+TDB_DATA dbwrap_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
+ TDB_DATA key);
NTSTATUS dbwrap_delete_bystring(struct db_context *db, const char *key);
NTSTATUS dbwrap_store_bystring(struct db_context *db, const char *key,
TDB_DATA data, int flags);
diff --git a/source3/lib/dbwrap.c b/source3/lib/dbwrap.c
index 73c2761..a57b7c9 100644
--- a/source3/lib/dbwrap.c
+++ b/source3/lib/dbwrap.c
@@ -105,12 +105,12 @@ struct db_context *db_open(TALLOC_CTX *mem_ctx,
return result;
}
-NTSTATUS dbwrap_delete_bystring(struct db_context *db, const char *key)
+NTSTATUS dbwrap_delete(struct db_context *db, TDB_DATA key)
{
struct db_record *rec;
NTSTATUS status;
- rec = db->fetch_locked(db, talloc_tos(), string_term_tdb_data(key));
+ rec = db->fetch_locked(db, talloc_tos(), key);
if (rec == NULL) {
return NT_STATUS_NO_MEMORY;
}
@@ -119,13 +119,13 @@ NTSTATUS dbwrap_delete_bystring(struct db_context *db, const char *key)
return status;
}
-NTSTATUS dbwrap_store_bystring(struct db_context *db, const char *key,
- TDB_DATA data, int flags)
+NTSTATUS dbwrap_store(struct db_context *db, TDB_DATA key,
+ TDB_DATA data, int flags)
{
struct db_record *rec;
NTSTATUS status;
- rec = db->fetch_locked(db, talloc_tos(), string_term_tdb_data(key));
+ rec = db->fetch_locked(db, talloc_tos(), key);
if (rec == NULL) {
return NT_STATUS_NO_MEMORY;
}
@@ -135,14 +135,32 @@ NTSTATUS dbwrap_store_bystring(struct db_context *db, const char *key,
return status;
}
-TDB_DATA dbwrap_fetch_bystring(struct db_context *db, TALLOC_CTX *mem_ctx,
- const char *key)
+TDB_DATA dbwrap_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
+ TDB_DATA key)
{
TDB_DATA result;
- if (db->fetch(db, mem_ctx, string_term_tdb_data(key), &result) == -1) {
+ if (db->fetch(db, mem_ctx, key, &result) == -1) {
return make_tdb_data(NULL, 0);
}
return result;
}
+
+NTSTATUS dbwrap_delete_bystring(struct db_context *db, const char *key)
+{
+ return dbwrap_delete(db, string_term_tdb_data(key));
+}
+
+NTSTATUS dbwrap_store_bystring(struct db_context *db, const char *key,
+ TDB_DATA data, int flags)
+{
+ return dbwrap_store(db, string_term_tdb_data(key), data, flags);
+}
+
+TDB_DATA dbwrap_fetch_bystring(struct db_context *db, TALLOC_CTX *mem_ctx,
+ const char *key)
+{
+ return dbwrap_fetch(db, mem_ctx, string_term_tdb_data(key));
+}
+
diff --git a/source3/lib/dbwrap_ctdb.c b/source3/lib/dbwrap_ctdb.c
index 38daa61..03667ff 100644
--- a/source3/lib/dbwrap_ctdb.c
+++ b/source3/lib/dbwrap_ctdb.c
@@ -1158,6 +1158,13 @@ static int db_ctdb_get_seqnum(struct db_context *db)
return tdb_get_seqnum(ctx->wtdb->tdb);
}
+static int db_ctdb_get_flags(struct db_context *db)
+{
+ struct db_ctdb_ctx *ctx = talloc_get_type_abort(db->private_data,
+ struct db_ctdb_ctx);
+ return tdb_get_flags(ctx->wtdb->tdb);
+}
+
struct db_context *db_open_ctdb(TALLOC_CTX *mem_ctx,
const char *name,
int hash_size, int tdb_flags,
@@ -1219,6 +1226,7 @@ struct db_context *db_open_ctdb(TALLOC_CTX *mem_ctx,
result->traverse = db_ctdb_traverse;
result->traverse_read = db_ctdb_traverse_read;
result->get_seqnum = db_ctdb_get_seqnum;
+ result->get_flags = db_ctdb_get_flags;
result->transaction_start = db_ctdb_transaction_start;
result->transaction_commit = db_ctdb_transaction_commit;
result->transaction_cancel = db_ctdb_transaction_cancel;
diff --git a/source3/lib/dbwrap_tdb.c b/source3/lib/dbwrap_tdb.c
index 4860c61..b5eb188 100644
--- a/source3/lib/dbwrap_tdb.c
+++ b/source3/lib/dbwrap_tdb.c
@@ -291,6 +291,14 @@ static int db_tdb_get_seqnum(struct db_context *db)
return tdb_get_seqnum(db_ctx->wtdb->tdb);
}
+static int db_tdb_get_flags(struct db_context *db)
+
+{
+ struct db_tdb_ctx *db_ctx =
+ talloc_get_type_abort(db->private_data, struct db_tdb_ctx);
+ return tdb_get_flags(db_ctx->wtdb->tdb);
+}
+
static int db_tdb_transaction_start(struct db_context *db)
{
struct db_tdb_ctx *db_ctx =
@@ -344,6 +352,7 @@ struct db_context *db_open_tdb(TALLOC_CTX *mem_ctx,
result->traverse = db_tdb_traverse;
result->traverse_read = db_tdb_traverse_read;
result->get_seqnum = db_tdb_get_seqnum;
+ result->get_flags = db_tdb_get_flags;
result->persistent = ((tdb_flags & TDB_CLEAR_IF_FIRST) == 0);
result->transaction_start = db_tdb_transaction_start;
result->transaction_commit = db_tdb_transaction_commit;
diff --git a/source3/winbindd/idmap_tdb.c b/source3/winbindd/idmap_tdb.c
index 4c8cceb..99821ae 100644
--- a/source3/winbindd/idmap_tdb.c
+++ b/source3/winbindd/idmap_tdb.c
@@ -40,41 +40,50 @@ static struct idmap_tdb_state {
} idmap_tdb_state;
+struct convert_fn_state {
+ struct db_context *db;
+ bool failed;
+};
+
/*****************************************************************************
For idmap conversion: convert one record to new format
Ancient versions (eg 2.2.3a) of winbindd_idmap.tdb mapped DOMAINNAME/rid
instead of the SID.
*****************************************************************************/
-static int convert_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *state)
+static int convert_fn(struct db_record *rec, void *private_data)
{
struct winbindd_domain *domain;
char *p;
+ NTSTATUS status;
DOM_SID sid;
uint32 rid;
fstring keystr;
fstring dom_name;
TDB_DATA key2;
- bool *failed = (bool *)state;
+ struct convert_fn_state *s = (struct convert_fn_state *)private_data;
- DEBUG(10,("Converting %s\n", (const char *)key.dptr));
+ DEBUG(10,("Converting %s\n", (const char *)rec->key.dptr));
- p = strchr((const char *)key.dptr, '/');
+ p = strchr((const char *)rec->key.dptr, '/');
if (!p)
return 0;
*p = 0;
- fstrcpy(dom_name, (const char *)key.dptr);
+ fstrcpy(dom_name, (const char *)rec->key.dptr);
*p++ = '/';
domain = find_domain_from_name(dom_name);
if (domain == NULL) {
/* We must delete the old record. */
DEBUG(0,("Unable to find domain %s\n", dom_name ));
- DEBUG(0,("deleting record %s\n", (const char *)key.dptr ));
-
- if (tdb_delete(tdb, key) != 0) {
- DEBUG(0, ("Unable to delete record %s\n", (const char *)key.dptr));
- *failed = True;
+ DEBUG(0,("deleting record %s\n", (const char *)rec->key.dptr ));
+
+ status = rec->delete_rec(rec);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Unable to delete record %s:%s\n",
+ (const char *)rec->key.dptr,
+ nt_errstr(status)));
+ s->failed = true;
return -1;
}
@@ -89,21 +98,30 @@ static int convert_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *state
sid_to_fstring(keystr, &sid);
key2 = string_term_tdb_data(keystr);
- if (tdb_store(tdb, key2, data, TDB_INSERT) != 0) {
- DEBUG(0,("Unable to add record %s\n", (const char *)key2.dptr ));
- *failed = True;
+ status = dbwrap_store(s->db, key2, rec->value, TDB_INSERT);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Unable to add record %s:%s\n",
+ (const char *)key2.dptr,
+ nt_errstr(status)));
+ s->failed = true;
return -1;
}
- if (tdb_store(tdb, data, key2, TDB_REPLACE) != 0) {
- DEBUG(0,("Unable to update record %s\n", (const char *)data.dptr ));
- *failed = True;
+ status = dbwrap_store(s->db, rec->value, key2, TDB_REPLACE);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Unable to update record %s:%s\n",
+ (const char *)rec->value.dptr,
+ nt_errstr(status)));
+ s->failed = true;
return -1;
}
- if (tdb_delete(tdb, key) != 0) {
- DEBUG(0,("Unable to delete record %s\n", (const char *)key.dptr ));
- *failed = True;
+ status = rec->delete_rec(rec);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Unable to delete record %s:%s\n",
+ (const char *)rec->key.dptr,
+ nt_errstr(status)));
+ s->failed = true;
return -1;
}
@@ -114,25 +132,17 @@ static int convert_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *state
Convert the idmap database from an older version.
*****************************************************************************/
-static bool idmap_tdb_upgrade(const char *idmap_name)
+static bool idmap_tdb_upgrade(struct db_context *db)
{
int32 vers;
bool bigendianheader;
- bool failed = False;
- TDB_CONTEXT *idmap_tdb;
+ struct convert_fn_state s;
DEBUG(0, ("Upgrading winbindd_idmap.tdb from an old version\n"));
- if (!(idmap_tdb = tdb_open_log(idmap_name, 0,
- TDB_DEFAULT, O_RDWR,
- 0600))) {
- DEBUG(0, ("Unable to open idmap database\n"));
- return False;
- }
-
- bigendianheader = (tdb_get_flags(idmap_tdb) & TDB_BIGENDIAN) ? True : False;
+ bigendianheader = (db->get_flags(db) & TDB_BIGENDIAN) ? True : False;
- vers = tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION");
+ vers = dbwrap_fetch_int32(db, "IDMAP_VERSION");
if (((vers == -1) && bigendianheader) || (IREV(vers) == IDMAP_VERSION)) {
/* Arrggghh ! Bytereversed or old big-endian - make order independent ! */
@@ -143,7 +153,7 @@ static bool idmap_tdb_upgrade(const char *idmap_name)
int32 wm;
- wm = tdb_fetch_int32(idmap_tdb, HWM_USER);
+ wm = dbwrap_fetch_int32(db, HWM_USER);
if (wm != -1) {
wm = IREV(wm);
@@ -151,66 +161,87 @@ static bool idmap_tdb_upgrade(const char *idmap_name)
wm = idmap_tdb_state.low_uid;
}
- if (tdb_store_int32(idmap_tdb, HWM_USER, wm) == -1) {
+ if (dbwrap_store_int32(db, HWM_USER, wm) == -1) {
DEBUG(0, ("Unable to byteswap user hwm in idmap database\n"));
- tdb_close(idmap_tdb);
return False;
}
- wm = tdb_fetch_int32(idmap_tdb, HWM_GROUP);
+ wm = dbwrap_fetch_int32(db, HWM_GROUP);
if (wm != -1) {
wm = IREV(wm);
} else {
wm = idmap_tdb_state.low_gid;
}
- if (tdb_store_int32(idmap_tdb, HWM_GROUP, wm) == -1) {
+ if (dbwrap_store_int32(db, HWM_GROUP, wm) == -1) {
DEBUG(0, ("Unable to byteswap group hwm in idmap database\n"));
- tdb_close(idmap_tdb);
return False;
}
}
+ s.db = db;
+ s.failed = false;
+
/* the old format stored as DOMAIN/rid - now we store the SID direct */
- tdb_traverse(idmap_tdb, convert_fn, &failed);
+ db->traverse(db, convert_fn, &s);
- if (failed) {
+ if (s.failed) {
DEBUG(0, ("Problem during conversion\n"));
- tdb_close(idmap_tdb);
return False;
}
- if (tdb_store_int32(idmap_tdb, "IDMAP_VERSION", IDMAP_VERSION) == -1) {
+ if (dbwrap_store_int32(db, "IDMAP_VERSION", IDMAP_VERSION) == -1) {
DEBUG(0, ("Unable to dtore idmap version in databse\n"));
- tdb_close(idmap_tdb);
return False;
}
- tdb_close(idmap_tdb);
return True;
}
-/* WARNING: We can't open a tdb twice inthe same process, for that reason
- * I'm going to use a hack with open ref counts to open the winbindd_idmap.tdb
- * only once. We will later decide whether to split the db in multiple files
- * or come up with a better solution to share them. */
-
-static TDB_CONTEXT *idmap_tdb_common_ctx;
-static int idmap_tdb_open_ref_count = 0;
-
-static NTSTATUS idmap_tdb_open_db(TALLOC_CTX *memctx, TDB_CONTEXT **tdbctx)
+static NTSTATUS idmap_tdb_open_db(TALLOC_CTX *memctx,
+ bool check_config,
+ struct db_context **dbctx)
{
NTSTATUS ret;
TALLOC_CTX *ctx;
- SMB_STRUCT_STAT stbuf;
char *tdbfile = NULL;
- int32 version;
- bool tdb_is_new = False;
+ struct db_context *db = NULL;
+ int32_t version;
+ uid_t low_uid = 0;
+ uid_t high_uid = 0;
+ gid_t low_gid = 0;
+ gid_t high_gid = 0;
+ bool config_error = false;
- if (idmap_tdb_open_ref_count) { /* the tdb has already been opened */
- idmap_tdb_open_ref_count++;
- *tdbctx = idmap_tdb_common_ctx;
- return NT_STATUS_OK;
+ /* load ranges */
+ if (!lp_idmap_uid(&low_uid, &high_uid)
+ || !lp_idmap_gid(&low_gid, &high_gid)) {
+ DEBUG(1, ("idmap uid or idmap gid missing\n"));
+ config_error = true;
+ if (check_config) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ }
+
+ idmap_tdb_state.low_uid = low_uid;
+ idmap_tdb_state.high_uid = high_uid;
+ idmap_tdb_state.low_gid = low_gid;
+ idmap_tdb_state.high_gid = high_gid;
+
+ if (idmap_tdb_state.high_uid <= idmap_tdb_state.low_uid) {
+ DEBUG(1, ("idmap uid range missing or invalid\n"));
+ config_error = true;
+ if (check_config) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ }
+
+ if (idmap_tdb_state.high_gid <= idmap_tdb_state.low_gid) {
+ DEBUG(1, ("idmap gid range missing or invalid\n"));
+ config_error = true;
+ if (check_config) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
}
/* use our own context here */
@@ -228,52 +259,47 @@ static NTSTATUS idmap_tdb_open_db(TALLOC_CTX *memctx, TDB_CONTEXT **tdbctx)
goto done;
}
- if (!file_exist_stat(tdbfile, &stbuf)) {
- tdb_is_new = True;
- }
-
DEBUG(10,("Opening tdbfile %s\n", tdbfile ));
/* Open idmap repository */
- if (!(idmap_tdb_common_ctx = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644))) {
+ db = db_open(ctx, tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644);
+ if (!db) {
DEBUG(0, ("Unable to open idmap database\n"));
ret = NT_STATUS_UNSUCCESSFUL;
goto done;
}
- if (tdb_is_new) {
- /* the file didn't existed before opening it, let's
- * store idmap version as nobody else yet opened and
- * stored it. I do not like this method but didn't
- * found a way to understand if an opened tdb have
- * been just created or not --- SSS */
- tdb_store_int32(idmap_tdb_common_ctx, "IDMAP_VERSION", IDMAP_VERSION);
- }
-
/* check against earlier versions */
- version = tdb_fetch_int32(idmap_tdb_common_ctx, "IDMAP_VERSION");
+ version = dbwrap_fetch_int32(db, "IDMAP_VERSION");
if (version != IDMAP_VERSION) {
-
- /* backup_tdb expects the tdb not to be open */
- tdb_close(idmap_tdb_common_ctx);
+ if (config_error) {
+ DEBUG(0,("Upgrade of IDMAP_VERSION from %d to %d is not "
+ "possible with incomplete configuration\n",
+ version, IDMAP_VERSION));
+ ret = NT_STATUS_UNSUCCESSFUL;
+ goto done;
+ }
+ if (db->transaction_start(db) != 0) {
+ DEBUG(0, ("Unable to start upgrade transaction!\n"));
+ ret = NT_STATUS_INTERNAL_DB_ERROR;
+ goto done;
+ }
- if ( ! idmap_tdb_upgrade(tdbfile)) {
-
+ if (!idmap_tdb_upgrade(db)) {
+ db->transaction_cancel(db);
DEBUG(0, ("Unable to open idmap database, it's in an old formati, and upgrade failed!\n"));
ret = NT_STATUS_INTERNAL_DB_ERROR;
goto done;
}
- /* Re-Open idmap repository */
- if (!(idmap_tdb_common_ctx = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644))) {
- DEBUG(0, ("Unable to open idmap database\n"));
- ret = NT_STATUS_UNSUCCESSFUL;
+ if (db->transaction_commit(db) != 0) {
+ DEBUG(0, ("Unable to commit upgrade transaction!\n"));
+ ret = NT_STATUS_INTERNAL_DB_ERROR;
goto done;
}
}
- *tdbctx = idmap_tdb_common_ctx;
- idmap_tdb_open_ref_count++;
+ *dbctx = talloc_move(memctx, &db);
ret = NT_STATUS_OK;
done:
@@ -281,29 +307,11 @@ done:
return ret;
}
- /* NEVER use tdb_close() except for the conversion routines that are guaranteed
- * to run only when the database is opened the first time, always use this function. */
-
-bool idmap_tdb_tdb_close(TDB_CONTEXT *tdbctx)
-{
- if (tdbctx != idmap_tdb_common_ctx) {
- DEBUG(0, ("ERROR: Invalid tdb context!"));
- return False;
- }
-
- idmap_tdb_open_ref_count--;
- if (idmap_tdb_open_ref_count) {
- return True;
- }
--
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