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https://github.com/servalproject/serval-dna.git
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110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
/*
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Copyright (C) 2012 Serval Project.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SERVALD_MDP_CLIENT_H
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#define __SERVALD_MDP_CLIENT_H
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#include "serval.h"
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// define 3rd party mdp API without any structure padding
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#pragma pack(push, 1)
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struct mdp_sockaddr {
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sid_t sid;
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mdp_port_t port;
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};
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#define MDP_FLAG_NO_CRYPT (1<<0)
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#define MDP_FLAG_NO_SIGN (1<<1)
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#define MDP_FLAG_BIND (1<<2)
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#define MDP_FLAG_CLOSE (1<<3)
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#define MDP_FLAG_ERROR (1<<4)
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struct mdp_header {
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struct mdp_sockaddr local;
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struct mdp_sockaddr remote;
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uint8_t flags;
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uint8_t qos;
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uint8_t ttl;
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};
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#define BIND_PRIMARY SID_ANY
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#define BIND_ALL SID_BROADCAST
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#define TYPE_SID 1
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#define TYPE_PIN 2
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#define ACTION_LOCK 1
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#define ACTION_UNLOCK 2
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/* Port numbers for commands sent to the local daemon*/
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#define MDP_LISTEN 0
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/* lock and unlock identities from the local keyring
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* Requests start with an mdp_identity_request structure followed by a list of pins or SIDs
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*/
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#define MDP_IDENTITY 1
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/* Search unlocked identities from the running daemon
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* If the request is empty, all identities will be returned
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* if the request contains a packed tag / value, identities with a matching tag will be returned
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* if the value passed in is zero length, all identities with that tag and any value will be returned
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*/
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#define MDP_SEARCH_IDS 2
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// an identity request is sent to port MDP_IDENTITY, sid ANY
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struct mdp_identity_request{
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uint8_t action;
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uint8_t type;
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// the request is followed by a list of SID's or NULL terminated entry pins for the remainder of the payload
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};
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#pragma pack(pop)
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struct overlay_route_record{
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sid_t sid;
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char interface_name[256];
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int reachable;
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sid_t neighbour;
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};
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struct overlay_mdp_scan{
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struct in_addr addr;
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};
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/* low level V2 mdp interface */
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int mdp_socket(void);
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int mdp_close(int socket);
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int mdp_send(int socket, const struct mdp_header *header, const uint8_t *payload, size_t len);
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ssize_t mdp_recv(int socket, struct mdp_header *header, uint8_t *payload, ssize_t max_len);
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int mdp_poll(int socket, time_ms_t timeout_ms);
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/* Client-side MDP function */
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int overlay_mdp_client_socket(void);
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int overlay_mdp_client_close(int mdp_sockfd);
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int overlay_mdp_client_poll(int mdp_sockfd, time_ms_t timeout_ms);
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int overlay_mdp_getmyaddr(int mpd_sockfd, unsigned index, sid_t *sid);
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int overlay_mdp_bind(int mdp_sockfd, const sid_t *localaddr, mdp_port_t port) ;
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int overlay_mdp_recv(int mdp_sockfd, overlay_mdp_frame *mdp, mdp_port_t port, int *ttl);
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int overlay_mdp_send(int mdp_sockfd, overlay_mdp_frame *mdp, int flags, int timeout_ms);
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ssize_t overlay_mdp_relevant_bytes(overlay_mdp_frame *mdp);
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#endif
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