/* * xfrd-notify.h - notify sending routines. * * Copyright (c) 2006, NLnet Labs. All rights reserved. * * See LICENSE for the license. * */ #ifndef XFRD_NOTIFY_H #define XFRD_NOTIFY_H #ifndef USE_MINI_EVENT # ifdef HAVE_EVENT_H # include <event.h> # else # include <event2/event.h> # include "event2/event_struct.h" # include "event2/event_compat.h" # endif #else # include "mini_event.h" #endif #include "tsig.h" #include "rbtree.h" struct nsd; struct region; struct xfrd_zone; struct zone_options; struct zone; struct xfrd_soa; struct acl_options; struct xfrd_state; /** * This struct keeps track of outbound notifies for a zone. */ struct notify_zone_t { rbnode_t node; /* name of the zone */ const dname_type* apex; const char* apex_str; tsig_record_type notify_tsig; /* tsig state for notify */ struct zone_options* options; struct xfrd_soa *current_soa; /* current SOA in NSD */ /* notify sending handler */ /* Not saved on disk (i.e. kill of daemon stops notifies) */ int notify_send_enable; struct event notify_send_handler; struct timeval notify_timeout; struct acl_options* notify_current; /* current slave to notify */ uint8_t notify_restart; /* restart notify after repattern */ uint8_t notify_retry; /* how manieth retry in sending to current */ uint16_t notify_query_id; /* is this notify waiting for a socket? */ uint8_t is_waiting; /* the double linked waiting list for the udp sockets */ struct notify_zone_t* waiting_next; struct notify_zone_t* waiting_prev; }; /* initialise outgoing notifies */ void init_notify_send(rbtree_t* tree, region_type* region, struct zone_options* options); /* delete notify zone */ void xfrd_del_notify(struct xfrd_state* xfrd, const dname_type* dname); /* send notifications to all in the notify list */ void xfrd_send_notify(rbtree_t* tree, const struct dname* apex, struct xfrd_soa* new_soa); /* start notifications, if not started already (does not clobber SOA) */ void xfrd_notify_start(struct notify_zone_t* zone, struct xfrd_state* xfrd); /* handle soa update notify for a master zone. newsoa can be NULL. Makes sure that the soa (serial) has changed. Or drops notify. */ void notify_handle_master_zone_soainfo(rbtree_t* tree, const dname_type* apex, struct xfrd_soa* new_soa); /* close fds in use for notification sending */ void close_notify_fds(rbtree_t* tree); /* stop send of notify */ void notify_disable(struct notify_zone_t* zone); #endif /* XFRD_NOTIFY_H */