MDEV-7597 Expiration of user passwords

This patch adds support for expiring user passwords.
The following statements are extended:
  CREATE USER user@localhost PASSWORD EXPIRE [option]
  ALTER USER user@localhost PASSWORD EXPIRE [option]
If no option is specified, the password is expired with immediate
effect. If option is DEFAULT, global policy applies according to
the default_password_lifetime system var (if 0, password never
expires, if N, password expires every N days). If option is NEVER,
the password never expires and if option is INTERVAL N DAY, the
password expires every N days.
The feature also supports the disconnect_on_expired_password system
var and the --connect-expired-password client option.

Closes #1166

1 files changed, 1 insertions, 0 deletions

diff --git a/sql/sp_head.cc b/sql/sp_head.cc
index 11c1234e2db..53d65549574 100644
--- a/sql/sp_head.cc
+++ b/sql/sp_head.cc
@@ -538,6 +538,7 @@ sp_head::sp_head(sp_package *parent, const Sp_handler *sph)
   my_hash_init(&m_sptabs, system_charset_info, 0, 0, 0, sp_table_key, 0, 0);
   my_hash_init(&m_sroutines, system_charset_info, 0, 0, 0, sp_sroutine_key,
                0, 0);
+  m_security_ctx.init();
 
   DBUG_VOID_RETURN;
 }