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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/usr.sbin/inetd/inetd.h,v 1.4.2.4 2002/08/21 10:00:24 ume Exp $ 34 */ 35 36 #include <sys/time.h> 37 #include <sys/socket.h> 38 #include <sys/un.h> 39 #include <sys/queue.h> 40 41 #include <netinet/in.h> 42 43 #include <stdio.h> 44 45 #define BUFSIZE 8192 46 #define LINESIZ 72 47 48 #define NORM_TYPE 0 49 #define MUX_TYPE 1 50 #define MUXPLUS_TYPE 2 51 #define TTCP_TYPE 3 52 #define FAITH_TYPE 4 53 #define ISMUX(sep) (((sep)->se_type == MUX_TYPE) || \ 54 ((sep)->se_type == MUXPLUS_TYPE)) 55 #define ISMUXPLUS(sep) ((sep)->se_type == MUXPLUS_TYPE) 56 #define ISTTCP(sep) ((sep)->se_type == TTCP_TYPE) 57 58 struct procinfo { 59 LIST_ENTRY(procinfo) pr_link; 60 pid_t pr_pid; /* child pid */ 61 struct conninfo *pr_conn; 62 }; 63 64 struct conninfo { 65 LIST_ENTRY(conninfo) co_link; 66 struct sockaddr_storage co_addr; /* source address */ 67 int co_numchild; /* current number of children */ 68 struct procinfo **co_proc; /* array of child proc entry */ 69 }; 70 71 #define PERIPSIZE 256 72 73 struct servtab { 74 char *se_service; /* name of service */ 75 int se_socktype; /* type of socket to use */ 76 int se_family; /* address family */ 77 char *se_proto; /* protocol used */ 78 int se_maxchild; /* max number of children */ 79 int se_maxcpm; /* max connects per IP per minute */ 80 int se_numchild; /* current number of children */ 81 pid_t *se_pids; /* array of child pids */ 82 char *se_user; /* user name to run as */ 83 char *se_group; /* group name to run as */ 84 #ifdef LOGIN_CAP 85 char *se_class; /* login class name to run with */ 86 #endif 87 struct biltin *se_bi; /* if built-in, description */ 88 char *se_server; /* server program */ 89 char *se_server_name; /* server program without path */ 90 #define MAXARGV 20 91 char *se_argv[MAXARGV+1]; /* program arguments */ 92 #ifdef IPSEC 93 char *se_policy; /* IPsec policy string */ 94 #endif 95 int se_fd; /* open descriptor */ 96 union { /* bound address */ 97 struct sockaddr se_un_ctrladdr; 98 struct sockaddr_in se_un_ctrladdr4; 99 struct sockaddr_in6 se_un_ctrladdr6; 100 struct sockaddr_un se_un_ctrladdr_un; 101 } se_un; 102 #define se_ctrladdr se_un.se_un_ctrladdr 103 #define se_ctrladdr4 se_un.se_un_ctrladdr4 104 #define se_ctrladdr6 se_un.se_un_ctrladdr6 105 #define se_ctrladdr_un se_un.se_un_ctrladdr_un 106 socklen_t se_ctrladdr_size; 107 uid_t se_sockuid; /* Owner for unix domain socket */ 108 gid_t se_sockgid; /* Group for unix domain socket */ 109 mode_t se_sockmode; /* Mode for unix domain socket */ 110 u_char se_type; /* type: normal, mux, or mux+ */ 111 u_char se_checked; /* looked at during merge */ 112 u_char se_accept; /* i.e., wait/nowait mode */ 113 u_char se_rpc; /* ==1 if RPC service */ 114 int se_rpc_prog; /* RPC program number */ 115 u_int se_rpc_lowvers; /* RPC low version */ 116 u_int se_rpc_highvers; /* RPC high version */ 117 int se_count; /* number started since se_time */ 118 struct timeval se_time; /* start of se_count */ 119 struct servtab *se_next; 120 struct se_flags { 121 u_int se_nomapped : 1; 122 u_int se_reset : 1; 123 } se_flags; 124 int se_maxperip; /* max number of children per src */ 125 LIST_HEAD(, conninfo) se_conn[PERIPSIZE]; 126 }; 127 128 #define se_nomapped se_flags.se_nomapped 129 #define se_reset se_flags.se_reset 130 131 int check_loop __P((const struct sockaddr *, const struct servtab *sep)); 132 int getvalue __P((const char *, int *, const char *)); 133 char *newstr __P((const char *)); 134 void inetd_setproctitle __P((const char *, int)); 135 void print_service __P((const char *, const struct servtab *)); 136 char *sskip __P((char **)); 137 char *skip __P((char **)); 138 struct servtab *tcpmux __P((int)); 139 140 extern int debug; 141 extern struct servtab *servtab; 142 143 typedef void (bi_fn_t) __P((int, struct servtab *)); 144 145 struct biltin { 146 const char *bi_service; /* internally provided service name */ 147 int bi_socktype; /* type of socket supported */ 148 short bi_fork; /* 1 if should fork before call */ 149 int bi_maxchild; /* max number of children, -1=default */ 150 bi_fn_t *bi_fn; /* function which performs it */ 151 }; 152