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63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
#ifndef LIBLLARP_DNSD_HPP
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#define LIBLLARP_DNSD_HPP
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#include <llarp/ev.h> // for sockaadr
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#include <string>
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#include "dns.hpp" // question and dnsc
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#include "dnsc.hpp"
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struct dnsd_context;
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typedef ssize_t (*sendto_dns_hook_func)(void *sock, const struct sockaddr *from,
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const void *buffer, size_t length);
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struct dnsd_question_request
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{
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/// sock type
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void *user;
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// raw or llarp subsystem
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bool llarp;
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/// request id
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int id;
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/// question being asked
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dns_msg_question question;
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// request source socket
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struct sockaddr *from;
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sendto_dns_hook_func hook; // sendto hook tbh
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// maybe a reference to dnsd_context incase of multiple
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dnsd_context *context; // or you can access it via user (udp)
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};
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// we could have passed in the source sockaddr in case you wanted to
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// handle the response yourself
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typedef sockaddr *(*intercept_query_hook)(std::string name,
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struct dnsd_context *context);
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struct dnsd_context
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{
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/// DNS daemon socket to listen on
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struct llarp_udp_io udp;
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dnsc_context client;
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/// custom data for intercept query hook
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void *user;
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/// hook function for intercepting dns requests
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intercept_query_hook intercept;
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};
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void
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llarp_handle_dnsd_recvfrom(struct llarp_udp_io *udp,
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const struct sockaddr *paddr, const void *buf,
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ssize_t sz);
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/// initialize dns subsystem and bind socket
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/// returns true on bind success otherwise returns false
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bool
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llarp_dnsd_init(struct dnsd_context *dnsd, struct llarp_ev_loop *netloop,
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const char *dnsd_ifname, uint16_t dnsd_port,
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const char *dnsc_hostname, uint16_t dnsc_port);
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bool
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llarp_dnsd_stop(struct dnsd_context *dnsd);
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#endif
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