1 /*- 2 * Copyright (c) 2009-2010 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Pawel Jakub Dawidek under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _PROTO_IMPL_H_ 31 #define _PROTO_IMPL_H_ 32 33 #include <sys/queue.h> 34 35 #include <stdbool.h> /* bool */ 36 #include <stdlib.h> /* size_t */ 37 38 #define __constructor __attribute__((constructor)) 39 40 struct proto_conn; 41 42 typedef int prt_connect_t(const char *, const char *, int, void **); 43 typedef int prt_connect_wait_t(void *, int); 44 typedef int prt_server_t(const char *, void **); 45 typedef int prt_accept_t(void *, void **); 46 typedef int prt_wrap_t(int, bool, void **); 47 typedef int prt_send_t(void *, const unsigned char *, size_t, int); 48 typedef int prt_recv_t(void *, unsigned char *, size_t, int *); 49 typedef int prt_descriptor_t(const void *); 50 typedef bool prt_address_match_t(const void *, const char *); 51 typedef void prt_local_address_t(const void *, char *, size_t); 52 typedef void prt_remote_address_t(const void *, char *, size_t); 53 typedef void prt_close_t(void *); 54 typedef int prt_exec_t(int, char *[]); 55 56 struct proto { 57 const char *prt_name; 58 prt_connect_t *prt_connect; 59 prt_connect_wait_t *prt_connect_wait; 60 prt_server_t *prt_server; 61 prt_accept_t *prt_accept; 62 prt_wrap_t *prt_wrap; 63 prt_send_t *prt_send; 64 prt_recv_t *prt_recv; 65 prt_descriptor_t *prt_descriptor; 66 prt_address_match_t *prt_address_match; 67 prt_local_address_t *prt_local_address; 68 prt_remote_address_t *prt_remote_address; 69 prt_close_t *prt_close; 70 prt_exec_t *prt_exec; 71 TAILQ_ENTRY(proto) prt_next; 72 }; 73 74 void proto_register(struct proto *proto, bool isdefault); 75 76 int proto_wrap(const char *protoname, bool client, int fd, 77 struct proto_conn **newconnp); 78 79 int proto_common_send(int sock, const unsigned char *data, size_t size, int fd); 80 int proto_common_recv(int sock, unsigned char *data, size_t size, int *fdp); 81 82 #endif /* !_PROTO_IMPL_H_ */ 83