#include "config.h"#include "status.h"#include "signer/zone.h"#include "wire/buffer.h"#include "wire/edns.h"#include "wire/tsig.h"Go to the source code of this file.
Data Structures | |
| struct | query_struct |
| struct | response_struct |
Macros | |
| #define | UDP_MAX_MESSAGE_LEN 512 |
| #define | TCP_MAX_MESSAGE_LEN 65535 |
| #define | QUERY_RESPONSE_MAX_RRSET 10 /* should be enough */ |
Typedefs | |
| typedef enum query_enum | query_state |
| typedef struct query_struct | query_type |
| typedef struct response_struct | response_type |
Enumerations | |
| enum | query_enum { QUERY_PROCESSED = 0 , QUERY_DISCARDED , QUERY_AXFR , QUERY_IXFR } |
Functions | |
| query_type * | query_create (void) |
| void | query_prepare (query_type *q) |
| query_state | query_process (query_type *q, engine_type *engine) |
| void | query_reset (query_type *q, size_t maxlen, int is_tcp) |
| void | query_add_optional (query_type *q, engine_type *engine) |
| int | query_add_rr (query_type *q, ldns_rr *rr) |
| void | query_cleanup (query_type *q) |
Macro Definition Documentation
◆ QUERY_RESPONSE_MAX_RRSET
◆ TCP_MAX_MESSAGE_LEN
| #define TCP_MAX_MESSAGE_LEN 65535 |
Definition at line 43 of file query.h.
Referenced by sock_handle_tcp_read().
◆ UDP_MAX_MESSAGE_LEN
| #define UDP_MAX_MESSAGE_LEN 512 |
Typedef Documentation
◆ query_state
| typedef enum query_enum query_state |
◆ query_type
| typedef struct query_struct query_type |
◆ response_type
| typedef struct response_struct response_type |
Enumeration Type Documentation
◆ query_enum
| enum query_enum |
Function Documentation
◆ query_add_optional()
|
extern |
Add optional RRs to query.
- Parameters
-
[in] q query [in] engine signer engine
Add optional RRs to query.
First EDNS
Then TSIG
Definition at line 962 of file query.c.
References query_struct::buffer, buffer_pkt_arcount(), buffer_pkt_set_arcount(), buffer_position(), buffer_write(), edns_rr_struct::dnssec_ok, EDNS_ERROR, EDNS_NOT_PRESENT, EDNS_OK, query_struct::edns_rr, edns_data_struct::error, tsig_rr_struct::error_code, edns_data_struct::ok, OPT_LEN, OPT_RDATA, query_str, edns_data_struct::rdata_none, edns_rr_struct::status, tsig_rr_struct::status, TSIG_ERROR, TSIG_NOT_PRESENT, TSIG_OK, query_struct::tsig_prepare_it, query_struct::tsig_rr, tsig_rr_append(), tsig_rr_error(), tsig_rr_prepare(), tsig_rr_sign(), tsig_rr_update(), query_struct::tsig_sign_it, and query_struct::tsig_update_it.
Referenced by sock_handle_tcp_read(), sock_handle_tcp_write(), and sock_handle_udp().
◆ query_add_rr()
|
extern |
Add RR to query.
- Parameters
-
[in] q query [in] rr RR
- Returns
- int 1 if ok, 0 if overflow.
Add RR to query.
Definition at line 1041 of file query.c.
References query_struct::buffer, buffer_available(), buffer_position(), buffer_set_position(), buffer_skip(), buffer_write_rdf(), buffer_write_u16(), buffer_write_u16_at(), and buffer_write_u32().
Referenced by axfr(), ixfr(), and soa_request().
◆ query_cleanup()
|
extern |
Cleanup query.
- Parameters
-
[in] q query
Cleanup query.
Definition at line 1098 of file query.c.
References query_struct::axfr_fd, query_struct::buffer, buffer_cleanup(), query_struct::edns_rr, edns_rr_cleanup(), query_struct::tsig_rr, and tsig_rr_cleanup().
Referenced by dnshandler_cleanup(), query_create(), and sock_handle_tcp_accept().
◆ query_create()
|
extern |
Create query.
- Returns
- query_type* query
Create query.
Definition at line 48 of file query.c.
References query_struct::axfr_fd, query_struct::buffer, buffer_create(), query_struct::edns_rr, edns_rr_create(), PACKET_BUFFER_SIZE, query_cleanup(), query_reset(), query_struct::tsig_rr, tsig_rr_create(), and UDP_MAX_MESSAGE_LEN.
Referenced by dnshandler_create(), and sock_handle_tcp_accept().
◆ query_prepare()
|
extern |
Prepare response.
- Parameters
-
[in] q query
Prepare response.
Definition at line 612 of file query.c.
References query_struct::buffer, buffer_capacity(), buffer_clear(), buffer_limit(), buffer_pkt_flags(), buffer_pkt_set_flags(), buffer_set_limit(), buffer_set_position(), query_struct::edns_rr, edns_rr_reserved_space(), query_struct::reserved_space, query_struct::tsig_rr, and tsig_rr_reserved_space().
◆ query_process()
|
extern |
Process query.
- Parameters
-
[in] q query [in] engine signer engine
- Returns
- query_state state of the query
Process query.
Definition at line 842 of file query.c.
References query_struct::buffer, buffer_current(), buffer_limit(), BUFFER_PKT_HEADER_SIZE, buffer_pkt_qr(), buffer_remaining(), zone_struct::name, QUERY_DISCARDED, QUERY_PROCESSED, query_str, tsig_rr_struct::status, query_struct::tsig_rr, tsig_status2str(), zone_struct::zl_status, query_struct::zone, ZONE_ZL_ADDED, and zonelist_lookup_zone_by_dname().
Referenced by sock_handle_tcp_read(), and sock_handle_udp().
◆ query_reset()
|
extern |
Reset query.
- Parameters
-
[in] q query [in] maxlen maximum message length [in] is_tcp 1 if tcp query
Reset query.
Definition at line 80 of file query.c.
References query_struct::addr, query_struct::addrlen, query_struct::axfr_fd, query_struct::axfr_is_done, query_struct::buffer, buffer_clear(), query_struct::edns_rr, edns_rr_reset(), query_struct::maxlen, query_struct::reserved_space, query_struct::serial, query_struct::startpos, query_struct::tcp, query_struct::tsig_prepare_it, query_struct::tsig_rr, tsig_rr_reset(), query_struct::tsig_sign_it, query_struct::tsig_update_it, and query_struct::zone.
Referenced by query_create(), sock_handle_tcp_read(), and sock_handle_udp().
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