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a204e42c2f
We no longer support versions of bind that have DLZ_DLOPEN_VERSION != 3, so we no longer need all these ifdefs. Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Autobuild-User(master): Andrew Bartlett <abartlet@samba.org> Autobuild-Date(master): Mon May 17 22:29:01 UTC 2021 on sn-devel-184
315 lines
8.2 KiB
C
315 lines
8.2 KiB
C
/*
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* Copyright (C) 2010 Andrew Tridgell
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
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* USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* This header is updated based on BIND 9.10.1 source.
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* contrib/dlz/modules/include/dlz_minimal.h
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*/
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#ifndef DLZ_MINIMAL_H
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#define DLZ_MINIMAL_H 1
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#include <stdint.h>
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#include <stdbool.h>
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#if defined (BIND_VERSION_9_8)
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# error Bind 9.8 is not supported!
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#elif defined (BIND_VERSION_9_9)
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# error Bind 9.9 is not supported!
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#elif defined (BIND_VERSION_9_10)
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# define DLZ_DLOPEN_VERSION 3
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# define DNS_CLIENTINFO_VERSION 1
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# define ISC_BOOLEAN_AS_BOOL 0
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#elif defined (BIND_VERSION_9_11)
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# define DLZ_DLOPEN_VERSION 3
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# define DNS_CLIENTINFO_VERSION 2
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# define ISC_BOOLEAN_AS_BOOL 0
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#elif defined (BIND_VERSION_9_12)
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# define DLZ_DLOPEN_VERSION 3
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# define DNS_CLIENTINFO_VERSION 2
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# define ISC_BOOLEAN_AS_BOOL 0
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#elif defined (BIND_VERSION_9_14)
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# define DLZ_DLOPEN_VERSION 3
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# define DNS_CLIENTINFO_VERSION 2
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#elif defined (BIND_VERSION_9_16)
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# define DLZ_DLOPEN_VERSION 3
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# define DNS_CLIENTINFO_VERSION 2
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#else
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# error Unsupported BIND version
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#endif
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#ifndef ISC_BOOLEAN_AS_BOOL
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#define ISC_BOOLEAN_AS_BOOL 1
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#endif
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# define DLZ_DLOPEN_AGE 0
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typedef unsigned int isc_result_t;
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#if ISC_BOOLEAN_AS_BOOL == 1
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typedef bool isc_boolean_t;
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#else
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typedef int isc_boolean_t;
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#endif
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typedef uint32_t dns_ttl_t;
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/* return these in flags from dlz_version() */
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#define DNS_SDLZFLAG_THREADSAFE 0x00000001U
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#define DNS_SDLZFLAG_RELATIVEOWNER 0x00000002U
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#define DNS_SDLZFLAG_RELATIVERDATA 0x00000004U
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/* result codes */
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#define ISC_R_SUCCESS 0
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#define ISC_R_NOMEMORY 1
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#define ISC_R_NOPERM 6
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#define ISC_R_NOSPACE 19
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#define ISC_R_NOTFOUND 23
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#define ISC_R_FAILURE 25
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#define ISC_R_NOTIMPLEMENTED 27
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#define ISC_R_NOMORE 29
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#define ISC_R_INVALIDFILE 30
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#define ISC_R_UNEXPECTED 34
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#define ISC_R_FILENOTFOUND 38
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/* boolean values */
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#if ISC_BOOLEAN_AS_BOOL == 1
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#define ISC_TRUE true
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#define ISC_FALSE false
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#else
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#define ISC_TRUE 1
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#define ISC_FALSE 0
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#endif
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/* log levels */
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#define ISC_LOG_INFO (-1)
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#define ISC_LOG_NOTICE (-2)
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#define ISC_LOG_WARNING (-3)
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#define ISC_LOG_ERROR (-4)
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#define ISC_LOG_CRITICAL (-5)
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#define ISC_LOG_DEBUG(level) (level)
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/* opaque structures */
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typedef void *dns_sdlzlookup_t;
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typedef void *dns_sdlzallnodes_t;
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typedef void *dns_view_t;
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typedef void *dns_dlzdb_t;
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/*
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* Method and type definitions needed for retrieval of client info
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* from the caller.
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*/
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typedef struct isc_sockaddr {
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union {
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struct sockaddr sa;
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struct sockaddr_in sin;
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struct sockaddr_in6 sin6;
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struct sockaddr_un sunix;
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} type;
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unsigned int length;
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void * link;
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} isc_sockaddr_t;
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#if DNS_CLIENTINFO_VERSION == 1
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typedef struct dns_clientinfo {
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uint16_t version;
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void *data;
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} dns_clientinfo_t;
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typedef isc_result_t (*dns_clientinfo_sourceip_t)(dns_clientinfo_t *client,
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isc_sockaddr_t **addrp);
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#define DNS_CLIENTINFOMETHODS_VERSION 1
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#define DNS_CLIENTINFOMETHODS_AGE 0
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typedef struct dns_clientinfomethods {
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uint16_t version;
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uint16_t age;
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dns_clientinfo_sourceip_t sourceip;
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} dns_clientinfomethods_t;
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#elif DNS_CLIENTINFO_VERSION == 2
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typedef struct dns_clientinfo {
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uint16_t version;
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void *data;
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void *dbversion;
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} dns_clientinfo_t;
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typedef isc_result_t (*dns_clientinfo_sourceip_t)(dns_clientinfo_t *client,
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isc_sockaddr_t **addrp);
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typedef isc_result_t (*dns_clientinfo_version_t)(dns_clientinfo_t *client,
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void **addrp);
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#define DNS_CLIENTINFOMETHODS_VERSION 2
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#define DNS_CLIENTINFOMETHODS_AGE 1
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typedef struct dns_clientinfomethods {
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uint16_t version;
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uint16_t age;
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dns_clientinfo_sourceip_t sourceip;
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dns_clientinfo_version_t dbversion;
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} dns_clientinfomethods_t;
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#endif /* DNS_CLIENTINFO_VERSION */
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/*
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* Method definitions for callbacks provided by the dlopen driver
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*/
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typedef void log_t(int level, const char *fmt, ...);
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typedef isc_result_t dns_sdlz_putrr_t(dns_sdlzlookup_t *lookup,
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const char *type,
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dns_ttl_t ttl,
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const char *data);
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typedef isc_result_t dns_sdlz_putnamedrr_t(dns_sdlzallnodes_t *allnodes,
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const char *name,
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const char *type,
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dns_ttl_t ttl,
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const char *data);
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typedef isc_result_t dns_dlz_writeablezone_t(dns_view_t *view,
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dns_dlzdb_t *dlzdb,
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const char *zone_name);
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/*
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* prototypes for the functions you can include in your module
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*/
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/*
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* dlz_version() is required for all DLZ external drivers. It should
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* return DLZ_DLOPEN_VERSION. 'flags' is updated to indicate capabilities
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* of the module. In particular, if the module is thread-safe then it
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* sets 'flags' to include DNS_SDLZFLAG_THREADSAFE. Other capability
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* flags may be added in the future.
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*/
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int
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dlz_version(unsigned int *flags);
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/*
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* dlz_create() is required for all DLZ external drivers.
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*/
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isc_result_t
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dlz_create(const char *dlzname, unsigned int argc, const char *argv[],
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void **dbdata, ...);
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/*
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* dlz_destroy() is optional, and will be called when the driver is
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* unloaded if supplied
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*/
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void
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dlz_destroy(void *dbdata);
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/*
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* dlz_findzonedb is required for all DLZ external drivers
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*/
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isc_result_t
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dlz_findzonedb(void *dbdata, const char *name,
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dns_clientinfomethods_t *methods,
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dns_clientinfo_t *clientinfo);
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/*
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* dlz_lookup is required for all DLZ external drivers
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*/
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isc_result_t
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dlz_lookup(const char *zone, const char *name, void *dbdata,
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dns_sdlzlookup_t *lookup,
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dns_clientinfomethods_t *methods,
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dns_clientinfo_t *clientinfo);
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/*
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* dlz_authority() is optional if dlz_lookup() supplies
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* authority information (i.e., SOA, NS) for the dns record
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*/
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isc_result_t
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dlz_authority(const char *zone, void *dbdata, dns_sdlzlookup_t *lookup);
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/*
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* dlz_allowzonexfr() is optional, and should be supplied if you want to
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* support zone transfers
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*/
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isc_result_t
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dlz_allowzonexfr(void *dbdata, const char *name, const char *client);
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/*
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* dlz_allnodes() is optional, but must be supplied if supply a
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* dlz_allowzonexfr() function
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*/
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isc_result_t
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dlz_allnodes(const char *zone, void *dbdata, dns_sdlzallnodes_t *allnodes);
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/*
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* dlz_newversion() is optional. It should be supplied if you want to
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* support dynamic updates.
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*/
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isc_result_t
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dlz_newversion(const char *zone, void *dbdata, void **versionp);
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/*
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* dlz_closeversion() is optional, but must be supplied if you supply a
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* dlz_newversion() function
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*/
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void
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dlz_closeversion(const char *zone, isc_boolean_t commit, void *dbdata,
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void **versionp);
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/*
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* dlz_configure() is optional, but must be supplied if you want to support
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* dynamic updates
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*/
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isc_result_t
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dlz_configure(dns_view_t *view, dns_dlzdb_t *dlzdb, void *dbdata);
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/*
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* dlz_ssumatch() is optional, but must be supplied if you want to support
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* dynamic updates
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*/
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isc_boolean_t
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dlz_ssumatch(const char *signer, const char *name, const char *tcpaddr,
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const char *type, const char *key, uint32_t keydatalen,
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uint8_t *keydata, void *dbdata);
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/*
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* dlz_addrdataset() is optional, but must be supplied if you want to
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* support dynamic updates
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*/
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isc_result_t
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dlz_addrdataset(const char *name, const char *rdatastr, void *dbdata,
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void *version);
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/*
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* dlz_subrdataset() is optional, but must be supplied if you want to
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* support dynamic updates
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*/
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isc_result_t
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dlz_subrdataset(const char *name, const char *rdatastr, void *dbdata,
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void *version);
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/*
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* dlz_delrdataset() is optional, but must be supplied if you want to
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* support dynamic updates
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*/
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isc_result_t
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dlz_delrdataset(const char *name, const char *type, void *dbdata,
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void *version);
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#endif /* DLZ_MINIMAL_H */
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