inetd.h revision 154503
1/* 2 * Copyright (c) 1983, 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 * $FreeBSD: head/usr.sbin/inetd/inetd.h 154503 2006-01-18 07:47:46Z delphij $ 30 */ 31 32#include <sys/time.h> 33#include <sys/socket.h> 34#include <sys/un.h> 35#include <sys/queue.h> 36 37#include <netinet/in.h> 38 39#include <stdio.h> 40 41#define BUFSIZE 8192 42#define LINESIZ 72 43 44#define NORM_TYPE 0 45#define MUX_TYPE 1 46#define MUXPLUS_TYPE 2 47#define TTCP_TYPE 3 48#define FAITH_TYPE 4 49#define ISMUX(sep) (((sep)->se_type == MUX_TYPE) || \ 50 ((sep)->se_type == MUXPLUS_TYPE)) 51#define ISMUXPLUS(sep) ((sep)->se_type == MUXPLUS_TYPE) 52#define ISTTCP(sep) ((sep)->se_type == TTCP_TYPE) 53 54struct procinfo { 55 LIST_ENTRY(procinfo) pr_link; 56 pid_t pr_pid; /* child pid */ 57 struct conninfo *pr_conn; 58}; 59 60struct conninfo { 61 LIST_ENTRY(conninfo) co_link; 62 struct sockaddr_storage co_addr; /* source address */ 63 int co_numchild; /* current number of children */ 64 struct procinfo **co_proc; /* array of child proc entry */ 65}; 66 67#define PERIPSIZE 256 68 69struct servtab { 70 char *se_service; /* name of service */ 71 int se_socktype; /* type of socket to use */ 72 int se_family; /* address family */ 73 char *se_proto; /* protocol used */ 74 int se_maxchild; /* max number of children */ 75 int se_maxcpm; /* max connects per IP per minute */ 76 int se_numchild; /* current number of children */ 77 int se_free; /* free when numchild == 0 */ 78#ifdef SANITY_CHECK 79 pid_t *se_pids; /* array of child pids */ 80#endif 81 char *se_user; /* user name to run as */ 82 char *se_group; /* group name to run as */ 83#ifdef LOGIN_CAP 84 char *se_class; /* login class name to run with */ 85#endif 86 struct biltin *se_bi; /* if built-in, description */ 87 char *se_server; /* server program */ 88 char *se_server_name; /* server program without path */ 89#define MAXARGV 20 90 char *se_argv[MAXARGV+1]; /* program arguments */ 91#ifdef IPSEC 92 char *se_policy; /* IPsec policy string */ 93#endif 94 int se_fd; /* open descriptor */ 95 union { /* bound address */ 96 struct sockaddr se_un_ctrladdr; 97 struct sockaddr_in se_un_ctrladdr4; 98 struct sockaddr_in6 se_un_ctrladdr6; 99 struct sockaddr_un se_un_ctrladdr_un; 100 } se_un; 101#define se_ctrladdr se_un.se_un_ctrladdr 102#define se_ctrladdr4 se_un.se_un_ctrladdr4 103#define se_ctrladdr6 se_un.se_un_ctrladdr6 104#define se_ctrladdr_un se_un.se_un_ctrladdr_un 105 socklen_t se_ctrladdr_size; 106 uid_t se_sockuid; /* Owner for unix domain socket */ 107 gid_t se_sockgid; /* Group for unix domain socket */ 108 mode_t se_sockmode; /* Mode for unix domain socket */ 109 u_char se_type; /* type: normal, mux, or mux+ */ 110 u_char se_checked; /* looked at during merge */ 111 u_char se_accept; /* i.e., wait/nowait mode */ 112 u_char se_rpc; /* ==1 if RPC service */ 113 int se_rpc_prog; /* RPC program number */ 114 u_int se_rpc_lowvers; /* RPC low version */ 115 u_int se_rpc_highvers; /* RPC high version */ 116 int se_count; /* number started since se_time */ 117 struct timeval se_time; /* start of se_count */ 118 struct servtab *se_next; 119 struct se_flags { 120 u_int se_nomapped : 1; 121 u_int se_reset : 1; 122 } se_flags; 123 int se_maxperip; /* max number of children per src */ 124 LIST_HEAD(, conninfo) se_conn[PERIPSIZE]; 125}; 126 127#define se_nomapped se_flags.se_nomapped 128#define se_reset se_flags.se_reset 129 130int check_loop(const struct sockaddr *, const struct servtab *sep); 131int getvalue(const char *, int *, const char *); 132char *newstr(const char *); 133void inetd_setproctitle(const char *, int); 134void print_service(const char *, const struct servtab *); 135char *sskip(char **); 136char *skip(char **); 137struct servtab *tcpmux(int); 138 139extern int debug; 140extern struct servtab *servtab; 141 142typedef void (bi_fn_t)(int, struct servtab *); 143 144struct biltin { 145 const char *bi_service; /* internally provided service name */ 146 int bi_socktype; /* type of socket supported */ 147 short bi_fork; /* 1 if should fork before call */ 148 int bi_maxchild; /* max number of children, -1=default */ 149 bi_fn_t *bi_fn; /* function which performs it */ 150}; 151 152void watch(short, uintptr_t, void *, u_int, int); 153#define WATCH_SOCK(fd, data) watch(EVFILT_READ, fd, data, 0, 1) 154#define UNWATCH_SOCK(fd, data) watch(EVFILT_READ, fd, data, 0, 0) 155#define WATCH_SIG(sig, data) watch(EVFILT_SIGNAL, sig, data, 0, 1) 156#define UNWATCH_SIG(sig, data) watch(EVFILT_SIGNAL, sig, data, 0, 0) 157#define WATCH_PROC(proc, data) watch(EVFILT_PROC, proc, data, NOTE_EXIT, 1) 158#define UNWATCH_PROC(proc, data) watch(EVFILT_PROC, proc, data, NOTE_EXIT, 0) 159#define WATCH_FD(fd, data) watch(EVFILT_VNODE, fd, data, NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND|NOTE_RENAME, 1) 160#define UNWATCH_FD(fd, data) watch(EVFILT_VNODE, fd, data, NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND|NOTE_RENAME, 0) 161 162