From: Volker Lendecke <vl@samba.org>
Date: Tue, 13 Aug 2019 14:00:09 +0000 (+0200)
Subject: smbd: Add share_entry_stale_pid()
X-Git-Tag: talloc-2.3.1~814
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55e47ada9f85d5152b342d7d39226dc18bbaf162;p=thirdparty%2Fsamba.git

smbd: Add share_entry_stale_pid()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/source3/locking/locking.c b/source3/locking/locking.c
index 72235113fbb..0cb6c6ff2f3 100644
--- a/source3/locking/locking.c
+++ b/source3/locking/locking.c
@@ -713,6 +713,30 @@ static void remove_share_mode_lease(struct share_mode_data *d,
 	remove_lease_if_stale(d, &e->client_guid, &e->lease_key);
 }
 
+bool share_entry_stale_pid(struct share_mode_entry *e)
+{
+	struct server_id_buf buf;
+	bool exists;
+
+	if (e->stale) {
+		return true;
+	}
+
+	exists = serverid_exists(&e->pid);
+	if (exists) {
+		DBG_DEBUG("PID %s still exists\n",
+			  server_id_str_buf(e->pid, &buf));
+		return false;
+	}
+
+	DBG_DEBUG("PID %s does not exist anymore\n",
+		  server_id_str_buf(e->pid, &buf));
+
+	e->stale = true;
+
+	return true;
+}
+
 /*
  * In case d->share_modes[i] conflicts with something or otherwise is
  * being used, we need to make sure the corresponding process still
diff --git a/source3/locking/proto.h b/source3/locking/proto.h
index 7d2d28f4172..f60655eb590 100644
--- a/source3/locking/proto.h
+++ b/source3/locking/proto.h
@@ -169,6 +169,7 @@ void get_file_infos(struct file_id id,
 		    bool *delete_on_close,
 		    struct timespec *write_time);
 bool is_valid_share_mode_entry(const struct share_mode_entry *e);
+bool share_entry_stale_pid(struct share_mode_entry *e);
 bool share_mode_stale_pid(struct share_mode_data *d, uint32_t idx);
 bool set_share_mode(struct share_mode_lock *lck,
 		    struct files_struct *fsp,