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 * $FreeBSD$ 34 */ 35 36 #include <sys/time.h> 37 #include <sys/socket.h> 38 39 #include <netinet/in.h> 40 41 #include <stdio.h> 42 43 #define BUFSIZE 8192 44 #define LINESIZ 72 45 46 #define NORM_TYPE 0 47 #define MUX_TYPE 1 48 #define MUXPLUS_TYPE 2 49 #define TTCP_TYPE 3 50 #define FAITH_TYPE 4 51 #define ISMUX(sep) (((sep)->se_type == MUX_TYPE) || \ 52 ((sep)->se_type == MUXPLUS_TYPE)) 53 #define ISMUXPLUS(sep) ((sep)->se_type == MUXPLUS_TYPE) 54 #define ISTTCP(sep) ((sep)->se_type == TTCP_TYPE) 55 56 struct servtab { 57 char *se_service; /* name of service */ 58 int se_socktype; /* type of socket to use */ 59 int se_family; /* address family */ 60 char *se_proto; /* protocol used */ 61 int se_maxchild; /* max number of children */ 62 int se_maxcpm; /* max connects per IP per minute */ 63 int se_numchild; /* current number of children */ 64 pid_t *se_pids; /* array of child pids */ 65 char *se_user; /* user name to run as */ 66 char *se_group; /* group name to run as */ 67 #ifdef LOGIN_CAP 68 char *se_class; /* login class name to run with */ 69 #endif 70 struct biltin *se_bi; /* if built-in, description */ 71 char *se_server; /* server program */ 72 char *se_server_name; /* server program without path */ 73 #define MAXARGV 20 74 char *se_argv[MAXARGV+1]; /* program arguments */ 75 #ifdef IPSEC 76 char *se_policy; /* IPsec policy string */ 77 #endif 78 int se_fd; /* open descriptor */ 79 union { /* bound address */ 80 struct sockaddr se_un_ctrladdr; 81 struct sockaddr_in se_un_ctrladdr4; 82 struct sockaddr_in6 se_un_ctrladdr6; 83 } se_un; 84 #define se_ctrladdr se_un.se_un_ctrladdr 85 #define se_ctrladdr4 se_un.se_un_ctrladdr4 86 #define se_ctrladdr6 se_un.se_un_ctrladdr6 87 socklen_t se_ctrladdr_size; 88 u_char se_type; /* type: normal, mux, or mux+ */ 89 u_char se_checked; /* looked at during merge */ 90 u_char se_accept; /* i.e., wait/nowait mode */ 91 u_char se_rpc; /* ==1 if RPC service */ 92 int se_rpc_prog; /* RPC program number */ 93 u_int se_rpc_lowvers; /* RPC low version */ 94 u_int se_rpc_highvers; /* RPC high version */ 95 int se_count; /* number started since se_time */ 96 struct timeval se_time; /* start of se_count */ 97 struct servtab *se_next; 98 struct se_flags { 99 u_int se_nomapped : 1; 100 u_int se_reset : 1; 101 } se_flags; 102 }; 103 104 #define se_nomapped se_flags.se_nomapped 105 #define se_reset se_flags.se_reset 106 107 void chargen_dg __P((int, struct servtab *)); 108 void chargen_stream __P((int, struct servtab *)); 109 void close_sep __P((struct servtab *)); 110 void flag_signal __P((int)); 111 void flag_config __P((int)); 112 void config __P((void)); 113 void daytime_dg __P((int, struct servtab *)); 114 void daytime_stream __P((int, struct servtab *)); 115 void discard_dg __P((int, struct servtab *)); 116 void discard_stream __P((int, struct servtab *)); 117 void echo_dg __P((int, struct servtab *)); 118 void echo_stream __P((int, struct servtab *)); 119 void endconfig __P((void)); 120 struct servtab *enter __P((struct servtab *)); 121 void freeconfig __P((struct servtab *)); 122 struct servtab *getconfigent __P((void)); 123 void iderror __P((int, int, int, char *)); 124 void ident_stream __P((int, struct servtab *)); 125 void machtime_dg __P((int, struct servtab *)); 126 void machtime_stream __P((int, struct servtab *)); 127 int matchservent __P((char *, char *, char *)); 128 char *newstr __P((char *)); 129 char *nextline __P((FILE *)); 130 void print_service __P((char *, struct servtab *)); 131 void addchild __P((struct servtab *, int)); 132 void flag_reapchild __P((int)); 133 void reapchild __P((void)); 134 void enable __P((struct servtab *)); 135 void disable __P((struct servtab *)); 136 void flag_retry __P((int)); 137 void retry __P((void)); 138 int setconfig __P((void)); 139 void setup __P((struct servtab *)); 140 #ifdef IPSEC 141 void ipsecsetup __P((struct servtab *)); 142 #endif 143 char *sskip __P((char **)); 144 char *skip __P((char **)); 145 struct servtab *tcpmux __P((int)); 146 int cpmip __P((struct servtab *, int)); 147 void inetd_setproctitle __P((char *, int)); 148 int check_loop __P((struct sockaddr *, struct servtab *sep)); 149 150 void unregisterrpc __P((register struct servtab *sep)); 151 152 struct biltin { 153 char *bi_service; /* internally provided service name */ 154 int bi_socktype; /* type of socket supported */ 155 short bi_fork; /* 1 if should fork before call */ 156 int bi_maxchild; /* max number of children, -1=default */ 157 void (*bi_fn)(); /* function which performs it */ 158 }; 159