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idmap_autorid: add idmap_autorid_delete_range_by_num()

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query and delete a mapping specified by the range number.

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
This commit is contained in:
Michael Adam 2013-09-12 23:59:15 +02:00
parent 6cdae0dd30
commit 1dd9218de9
2 changed files with 129 additions and 0 deletions
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10
source3/include/idmap_autorid_tdb.h
View File

@ -92,6 +92,16 @@ NTSTATUS idmap_autorid_delete_range_by_sid(struct db_context *db,
uint32_t domain_range_index,
bool force);
/**
* Delete a domain#index <-> range maping from the database.
* The mapping is specified by the range number.
* If force == true, invalid mapping records are deleted as far
* as possible, otherwise they are left untouched.
*/
NTSTATUS idmap_autorid_delete_range_by_num(struct db_context *db,
uint32_t rangenum,
bool force);
/**
* Initialize a specified HWM value to 0 if it is not
* yet present in the database.

119
source3/winbindd/idmap_autorid_tdb.c
View File

@ -524,6 +524,125 @@ NTSTATUS idmap_autorid_delete_range_by_sid(struct db_context *db,
return status;
}
/*
* Delete a domain#index <-> range mapping from the database.
* The mapping is specified by the range number.
* If force == true, invalid mapping records are deleted as far
* as possible, otherwise they are left untouched.
*/
struct idmap_autorid_delete_range_by_num_ctx {
uint32_t rangenum;
bool force;
};
static NTSTATUS idmap_autorid_delete_range_by_num_action(struct db_context *db,
void *private_data)
{
struct idmap_autorid_delete_range_by_num_ctx *ctx =
(struct idmap_autorid_delete_range_by_num_ctx *)private_data;
uint32_t rangenum;
char *keystr;
char *range_keystr;
TDB_DATA val;
NTSTATUS status;
TALLOC_CTX *frame = talloc_stackframe();
bool is_valid_range_mapping = true;
bool force;
rangenum = ctx->rangenum;
force = ctx->force;
range_keystr = talloc_asprintf(frame, "%"PRIu32, rangenum);
if (range_keystr == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
ZERO_STRUCT(val);
status = dbwrap_fetch_bystring(db, frame, range_keystr, &val);
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
DEBUG(10, ("Did not find range '%s' in database.\n",
range_keystr));
goto done;
} else if (!NT_STATUS_IS_OK(status)) {
DEBUG(5, ("Error fetching rang key: %s\n", nt_errstr(status)));
goto done;
}
if (val.dptr == NULL) {
DEBUG(1, ("Invalid mapping: %s -> empty value\n",
range_keystr));
is_valid_range_mapping = false;
} else {
uint32_t reverse_rangenum = 0;
keystr = (char *)val.dptr;
status = dbwrap_fetch_uint32_bystring(db, keystr,
&reverse_rangenum);
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
DEBUG(1, ("Incomplete mapping %s -> %s: "
"no backward mapping\n",
range_keystr, keystr));
is_valid_range_mapping = false;
} else if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Error fetching reverse mapping for "
"%s -> %s: %s\n",
range_keystr, keystr, nt_errstr(status)));
goto done;
} else if (rangenum != reverse_rangenum) {
is_valid_range_mapping = false;
}
}
if (!is_valid_range_mapping && !force) {
DEBUG(10, ("Not deleting invalid mapping, since not in force "
"mode.\n"));
status = NT_STATUS_FILE_INVALID;
goto done;
}
status = dbwrap_delete_bystring(db, range_keystr);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Deletion of '%s' failed: %s\n",
range_keystr, nt_errstr(status)));
goto done;
}
if (!is_valid_range_mapping) {
goto done;
}
status = dbwrap_delete_bystring(db, keystr);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Deletion of '%s' failed: %s\n",
keystr, nt_errstr(status)));
goto done;
}
DEBUG(10, ("Deleted range mapping %s <--> %s\n", range_keystr,
keystr));
done:
talloc_free(frame);
return status;
}
NTSTATUS idmap_autorid_delete_range_by_num(struct db_context *db,
uint32_t rangenum,
bool force)
{
NTSTATUS status;
struct idmap_autorid_delete_range_by_num_ctx ctx;
ctx.rangenum = rangenum;
ctx.force = force;
status = dbwrap_trans_do(db, idmap_autorid_delete_range_by_num_action,
&ctx);
return status;
}
/*
* open and initialize the database which stores the ranges for the domains