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-rw-r--r--source3/locking/brlock.c73
-rw-r--r--source3/locking/proto.h1
2 files changed, 74 insertions, 0 deletions
diff --git a/source3/locking/brlock.c b/source3/locking/brlock.c
index 9680b8ff87..865aaca1b4 100644
--- a/source3/locking/brlock.c
+++ b/source3/locking/brlock.c
@@ -32,6 +32,7 @@
#include "dbwrap/dbwrap_open.h"
#include "serverid.h"
#include "messages.h"
+#include "util_tdb.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_LOCKING
@@ -2152,3 +2153,75 @@ void brl_revalidate(struct messaging_context *msg_ctx,
TALLOC_FREE(state);
return;
}
+
+bool brl_cleanup_disconnected(struct file_id fid, uint64_t open_persistent_id)
+{
+ bool ret = false;
+ TALLOC_CTX *frame = talloc_stackframe();
+ TDB_DATA key, val;
+ struct db_record *rec;
+ struct lock_struct *lock;
+ unsigned n, num;
+ NTSTATUS status;
+
+ key = make_tdb_data((void*)&fid, sizeof(fid));
+
+ rec = dbwrap_fetch_locked(brlock_db, frame, key);
+ if (rec == NULL) {
+ DEBUG(5, ("brl_cleanup_disconnected: failed to fetch record "
+ "for file %s\n", file_id_string(frame, &fid)));
+ goto done;
+ }
+
+ val = dbwrap_record_get_value(rec);
+ lock = (struct lock_struct*)val.dptr;
+ num = val.dsize / sizeof(struct lock_struct);
+ if (lock == NULL) {
+ DEBUG(10, ("brl_cleanup_disconnected: no byte range locks for "
+ "file %s\n", file_id_string(frame, &fid)));
+ ret = true;
+ goto done;
+ }
+
+ for (n=0; n<num; n++) {
+ struct lock_context *ctx = &lock[n].context;
+
+ if (!server_id_is_disconnected(&ctx->pid)) {
+ DEBUG(5, ("brl_cleanup_disconnected: byte range lock "
+ "%s used by server %s, do not cleanup\n",
+ file_id_string(frame, &fid),
+ server_id_str(frame, &ctx->pid)));
+ goto done;
+ }
+
+ if (ctx->smblctx != open_persistent_id) {
+ DEBUG(5, ("brl_cleanup_disconnected: byte range lock "
+ "%s expected smblctx %llu but found %llu"
+ ", do not cleanup\n",
+ file_id_string(frame, &fid),
+ (unsigned long long)open_persistent_id,
+ (unsigned long long)ctx->smblctx));
+ goto done;
+ }
+ }
+
+ status = dbwrap_record_delete(rec);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(5, ("brl_cleanup_disconnected: failed to delete record "
+ "for file %s from %s, open %llu: %s\n",
+ file_id_string(frame, &fid), dbwrap_name(brlock_db),
+ (unsigned long long)open_persistent_id,
+ nt_errstr(status)));
+ goto done;
+ }
+
+ DEBUG(10, ("brl_cleanup_disconnected: "
+ "file %s cleaned up %u entries from open %llu\n",
+ file_id_string(frame, &fid), num,
+ (unsigned long long)open_persistent_id));
+
+ ret = true;
+done:
+ talloc_free(frame);
+ return ret;
+}
diff --git a/source3/locking/proto.h b/source3/locking/proto.h
index c170c73301..69c78e3233 100644
--- a/source3/locking/proto.h
+++ b/source3/locking/proto.h
@@ -97,6 +97,7 @@ void brl_revalidate(struct messaging_context *msg_ctx,
uint32_t msg_type,
struct server_id server_id,
DATA_BLOB *data);
+bool brl_cleanup_disconnected(struct file_id fid, uint64_t open_persistent_id);
/* The following definitions come from locking/locking.c */