X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fresolve%2Fresolved-dns-query.h;h=67fe7f6e8f5b033a1b1d3aff676b42689c557e47;hb=02dd6e189a6d2b7f3884ad4cdb3d8c85e009c565;hp=864036acc73609675f24c60abf59d395155c156d;hpb=8ba9fd9cee0eef572f7b3ed7a8c3ed31160e93d3;p=elogind.git diff --git a/src/resolve/resolved-dns-query.h b/src/resolve/resolved-dns-query.h index 864036acc..67fe7f6e8 100644 --- a/src/resolve/resolved-dns-query.h +++ b/src/resolve/resolved-dns-query.h @@ -25,6 +25,7 @@ #include "sd-bus.h" #include "util.h" +#include "set.h" typedef struct DnsQuery DnsQuery; typedef struct DnsQueryTransaction DnsQueryTransaction; @@ -33,6 +34,9 @@ typedef struct DnsQueryTransaction DnsQueryTransaction; #include "resolved-dns-scope.h" #include "resolved-dns-rr.h" #include "resolved-dns-packet.h" +#include "resolved-dns-question.h" +#include "resolved-dns-answer.h" +#include "resolved-dns-stream.h" typedef enum DnsQueryState { DNS_QUERY_NULL, @@ -43,65 +47,82 @@ typedef enum DnsQueryState { DNS_QUERY_TIMEOUT, DNS_QUERY_ATTEMPTS_MAX, DNS_QUERY_INVALID_REPLY, - DNS_QUERY_RESOURCES + DNS_QUERY_RESOURCES, + DNS_QUERY_ABORTED, + _DNS_QUERY_STATE_MAX, + _DNS_QUERY_STATE_INVALID = -1 } DnsQueryState; struct DnsQueryTransaction { - DnsQuery *query; DnsScope *scope; + DnsQuestion *question; + DnsQueryState state; uint16_t id; + DnsPacket *sent, *received; + DnsAnswer *cached; + int cached_rcode; + sd_event_source *timeout_event_source; unsigned n_attempts; - DnsPacket *sent, *received; + /* TCP connection logic, if we need it */ + DnsStream *stream; - /* TCP connection logic */ - int tcp_fd; - sd_event_source *tcp_event_source; - size_t tcp_written, tcp_read; - be16_t tcp_read_size; + /* Queries this transaction is referenced by and that shall by + * notified about this specific transaction completing. */ + Set *queries; + + unsigned block_gc; - LIST_FIELDS(DnsQueryTransaction, transactions_by_query); LIST_FIELDS(DnsQueryTransaction, transactions_by_scope); }; struct DnsQuery { Manager *manager; - - DnsResourceKey *keys; - unsigned n_keys; + DnsQuestion *question; DnsQueryState state; - unsigned n_cname; + unsigned n_cname_redirects; sd_event_source *timeout_event_source; - DnsPacket *received; + /* Discovered data */ + DnsAnswer *answer; + int answer_ifindex; + int answer_rcode; /* Bus client information */ sd_bus_message *request; - unsigned char request_family; + int request_family; const char *request_hostname; union in_addr_union request_address; + /* Completion callback */ void (*complete)(DnsQuery* q); + unsigned block_ready; + + Set *transactions; - LIST_HEAD(DnsQueryTransaction, transactions); LIST_FIELDS(DnsQuery, queries); }; -int dns_query_new(Manager *m, DnsQuery **q, DnsResourceKey *keys, unsigned n_keys); +DnsQueryTransaction* dns_query_transaction_free(DnsQueryTransaction *t); +void dns_query_transaction_complete(DnsQueryTransaction *t, DnsQueryState state); + +void dns_query_transaction_process_reply(DnsQueryTransaction *t, DnsPacket *p); + +int dns_query_new(Manager *m, DnsQuery **q, DnsQuestion *question); DnsQuery *dns_query_free(DnsQuery *q); -int dns_query_start(DnsQuery *q); -int dns_query_follow_cname(DnsQuery *q, const char *name); -int dns_query_matches_rr(DnsQuery *q, DnsResourceRecord *rr); -int dns_query_matches_cname(DnsQuery *q, DnsResourceRecord *rr); -DnsQueryTransaction* dns_query_transaction_free(DnsQueryTransaction *t); -void dns_query_transaction_reply(DnsQueryTransaction *t, DnsPacket *p); -void dns_query_finish(DnsQuery *q); +int dns_query_go(DnsQuery *q); +void dns_query_ready(DnsQuery *q); + +int dns_query_cname_redirect(DnsQuery *q, const char *name); + +const char* dns_query_state_to_string(DnsQueryState p) _const_; +DnsQueryState dns_query_state_from_string(const char *s) _pure_; DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuery*, dns_query_free);