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/*
* difffile.h - nsd.diff file handling header file. Read/write diff files.
*
* Copyright (c) 2001-2006, NLnet Labs. All rights reserved.
*
* See LICENSE for the license.
*
*/
#ifndef DIFFFILE_H
#define DIFFFILE_H
#include "rbtree.h"
#include "namedb.h"
#include "options.h"
#include "udb.h"
struct nsd;
struct nsdst;
#define DIFF_PART_XXFR ('X'<<24 | 'X'<<16 | 'F'<<8 | 'R')
#define DIFF_PART_XFRF ('X'<<24 | 'F'<<16 | 'R'<<8 | 'F')
/* write an xfr packet data to the diff file, type=IXFR.
The diff file is created if necessary, with initial header(notcommitted). */
void diff_write_packet(const char* zone, const char* pat, uint32_t old_serial,
uint32_t new_serial, uint32_t seq_nr, uint8_t* data, size_t len,
struct nsd* nsd, uint64_t filenumber);
/*
* Overwrite header of diff file with committed vale and other data.
* append log string.
*/
void diff_write_commit(const char* zone, uint32_t old_serial,
uint32_t new_serial, uint32_t num_parts, uint8_t commit,
const char* log_msg, struct nsd* nsd, uint64_t filenumber);
/*
* These functions read parts of the diff file.
*/
int diff_read_32(FILE *in, uint32_t* result);
int diff_read_8(FILE *in, uint8_t* result);
int diff_read_str(FILE* in, char* buf, size_t len);
/* delete the RRs for a zone from memory */
void delete_zone_rrs(namedb_type* db, zone_type* zone);
/* delete an RR */
int delete_RR(namedb_type* db, const dname_type* dname,
uint16_t type, uint16_t klass,
buffer_type* packet, size_t rdatalen, zone_type *zone,
region_type* temp_region, struct udb_ptr* udbz, int* softfail);
/* add an RR */
int add_RR(namedb_type* db, const dname_type* dname,
uint16_t type, uint16_t klass, uint32_t ttl,
buffer_type* packet, size_t rdatalen, zone_type *zone,
struct udb_ptr* udbz, int* softfail);
/* task udb structure */
struct task_list_d {
/** next task in list */
udb_rel_ptr next;
/** task type */
enum {
/** expire or un-expire a zone */
task_expire,
/** apply an ixfr or axfr to a zone */
task_apply_xfr,
/** soa info for zone */
task_soa_info,
/** check mtime of zonefiles and read them, done on SIGHUP */
task_check_zonefiles,
/** write zonefiles (if changed) */
task_write_zonefiles,
/** set verbosity */
task_set_verbosity,
/** statistic info */
task_stat_info,
/** add a zone */
task_add_zone,
/** delete zone */
task_del_zone,
/** add TSIG key */
task_add_key,
/** delete TSIG key */
task_del_key,
/** add pattern */
task_add_pattern,
/** delete pattern */
task_del_pattern,
/** options change */
task_opt_change
} task_type;
uint32_t size; /* size of this struct */
/** soainfo: zonename dname, soaRR wireform */
/** expire: zonename, boolyesno */
/** apply_xfr: zonename, serials, yesno is filenamecounter */
uint32_t oldserial, newserial;
/** general variable. for some used to see if zname is present. */
uint64_t yesno;
struct dname zname[0];
};
#define TASKLIST(ptr) ((struct task_list_d*)UDB_PTR(ptr))
/** create udb for tasks */
struct udb_base* task_file_create(const char* file);
void task_remap(udb_base* udb);
void task_process_sync(udb_base* udb);
void task_clear(udb_base* udb);
void task_new_soainfo(udb_base* udb, udb_ptr* last, struct zone* z, int gone);
void task_new_expire(udb_base* udb, udb_ptr* last,
const struct dname* z, int expired);
void* task_new_stat_info(udb_base* udb, udb_ptr* last, struct nsdst* stat,
size_t child_count);
void task_new_check_zonefiles(udb_base* udb, udb_ptr* last,
const dname_type* zone);
void task_new_write_zonefiles(udb_base* udb, udb_ptr* last,
const dname_type* zone);
void task_new_set_verbosity(udb_base* udb, udb_ptr* last, int v);
void task_new_add_zone(udb_base* udb, udb_ptr* last, const char* zone,
const char* pattern);
void task_new_del_zone(udb_base* udb, udb_ptr* last, const dname_type* dname);
void task_new_add_key(udb_base* udb, udb_ptr* last, key_options_t* key);
void task_new_del_key(udb_base* udb, udb_ptr* last, const char* name);
void task_new_add_pattern(udb_base* udb, udb_ptr* last, pattern_options_t* p);
void task_new_del_pattern(udb_base* udb, udb_ptr* last, const char* name);
void task_new_opt_change(udb_base* udb, udb_ptr* last, nsd_options_t* opt);
int task_new_apply_xfr(udb_base* udb, udb_ptr* last, const dname_type* zone,
uint32_t old_serial, uint32_t new_serial, uint64_t filenumber);
void task_process_in_reload(struct nsd* nsd, udb_base* udb, udb_ptr *last_task,
udb_ptr* task);
void task_process_expire(namedb_type* db, struct task_list_d* task);
#endif /* DIFFFILE_H */
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