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 * $DragonFly: src/usr.sbin/inetd/inetd.h,v 1.3 2003/11/03 19:31:37 eirikn Exp $ 35 */ 36 37 #include <sys/time.h> 38 #include <sys/socket.h> 39 #include <sys/un.h> 40 #include <sys/queue.h> 41 42 #include <netinet/in.h> 43 44 #include <stdio.h> 45 46 #define BUFSIZE 8192 47 #define LINESIZ 72 48 49 #define NORM_TYPE 0 50 #define MUX_TYPE 1 51 #define MUXPLUS_TYPE 2 52 #define TTCP_TYPE 3 53 #define FAITH_TYPE 4 54 #define ISMUX(sep) (((sep)->se_type == MUX_TYPE) || \ 55 ((sep)->se_type == MUXPLUS_TYPE)) 56 #define ISMUXPLUS(sep) ((sep)->se_type == MUXPLUS_TYPE) 57 #define ISTTCP(sep) ((sep)->se_type == TTCP_TYPE) 58 59 struct procinfo { 60 LIST_ENTRY(procinfo) pr_link; 61 pid_t pr_pid; /* child pid */ 62 struct conninfo *pr_conn; 63 }; 64 65 struct conninfo { 66 LIST_ENTRY(conninfo) co_link; 67 struct sockaddr_storage co_addr; /* source address */ 68 int co_numchild; /* current number of children */ 69 struct procinfo **co_proc; /* array of child proc entry */ 70 }; 71 72 #define PERIPSIZE 256 73 74 struct servtab { 75 char *se_service; /* name of service */ 76 int se_socktype; /* type of socket to use */ 77 int se_family; /* address family */ 78 char *se_proto; /* protocol used */ 79 int se_maxchild; /* max number of children */ 80 int se_maxcpm; /* max connects per IP per minute */ 81 int se_numchild; /* current number of children */ 82 pid_t *se_pids; /* array of child pids */ 83 char *se_user; /* user name to run as */ 84 char *se_group; /* group name to run as */ 85 #ifdef LOGIN_CAP 86 char *se_class; /* login class name to run with */ 87 #endif 88 struct biltin *se_bi; /* if built-in, description */ 89 char *se_server; /* server program */ 90 char *se_server_name; /* server program without path */ 91 #define MAXARGV 20 92 char *se_argv[MAXARGV+1]; /* program arguments */ 93 #ifdef IPSEC 94 char *se_policy; /* IPsec policy string */ 95 #endif 96 int se_fd; /* open descriptor */ 97 union { /* bound address */ 98 struct sockaddr se_un_ctrladdr; 99 struct sockaddr_in se_un_ctrladdr4; 100 struct sockaddr_in6 se_un_ctrladdr6; 101 struct sockaddr_un se_un_ctrladdr_un; 102 } se_un; 103 #define se_ctrladdr se_un.se_un_ctrladdr 104 #define se_ctrladdr4 se_un.se_un_ctrladdr4 105 #define se_ctrladdr6 se_un.se_un_ctrladdr6 106 #define se_ctrladdr_un se_un.se_un_ctrladdr_un 107 socklen_t se_ctrladdr_size; 108 uid_t se_sockuid; /* Owner for unix domain socket */ 109 gid_t se_sockgid; /* Group for unix domain socket */ 110 mode_t se_sockmode; /* Mode for unix domain socket */ 111 u_char se_type; /* type: normal, mux, or mux+ */ 112 u_char se_checked; /* looked at during merge */ 113 u_char se_accept; /* i.e., wait/nowait mode */ 114 u_char se_rpc; /* ==1 if RPC service */ 115 int se_rpc_prog; /* RPC program number */ 116 u_int se_rpc_lowvers; /* RPC low version */ 117 u_int se_rpc_highvers; /* RPC high version */ 118 int se_count; /* number started since se_time */ 119 struct timeval se_time; /* start of se_count */ 120 struct servtab *se_next; 121 struct se_flags { 122 u_int se_nomapped : 1; 123 u_int se_reset : 1; 124 } se_flags; 125 int se_maxperip; /* max number of children per src */ 126 LIST_HEAD(, conninfo) se_conn[PERIPSIZE]; 127 }; 128 129 #define se_nomapped se_flags.se_nomapped 130 #define se_reset se_flags.se_reset 131 132 int check_loop(const struct sockaddr *, const struct servtab *sep); 133 int getvalue(const char *, int *, const char *); 134 char *newstr(const char *); 135 void inetd_setproctitle(const char *, int); 136 void print_service(const char *, const struct servtab *); 137 char *sskip(char **); 138 char *skip(char **); 139 struct servtab *tcpmux(int); 140 141 extern int debug; 142 extern struct servtab *servtab; 143 144 typedef void (bi_fn_t)(int, struct servtab *); 145 146 struct biltin { 147 const char *bi_service; /* internally provided service name */ 148 int bi_socktype; /* type of socket supported */ 149 short bi_fork; /* 1 if should fork before call */ 150 int bi_maxchild; /* max number of children, -1=default */ 151 bi_fn_t *bi_fn; /* function which performs it */ 152 }; 153