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. 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: src/usr.sbin/inetd/inetd.h,v 1.4.2.4 2002/08/21 10:00:24 ume Exp $ 30 * $DragonFly: src/usr.sbin/inetd/inetd.h,v 1.3 2003/11/03 19:31:37 eirikn Exp $ 31 */ 32 33 #include <sys/time.h> 34 #include <sys/socket.h> 35 #include <sys/un.h> 36 #include <sys/queue.h> 37 38 #include <netinet/in.h> 39 40 #include <stdio.h> 41 42 #define BUFSIZE 8192 43 #define LINESIZ 72 44 45 #define NORM_TYPE 0 46 #define MUX_TYPE 1 47 #define MUXPLUS_TYPE 2 48 #define TTCP_TYPE 3 49 #define FAITH_TYPE 4 50 #define ISMUX(sep) (((sep)->se_type == MUX_TYPE) || \ 51 ((sep)->se_type == MUXPLUS_TYPE)) 52 #define ISMUXPLUS(sep) ((sep)->se_type == MUXPLUS_TYPE) 53 #define ISTTCP(sep) ((sep)->se_type == TTCP_TYPE) 54 55 struct procinfo { 56 LIST_ENTRY(procinfo) pr_link; 57 pid_t pr_pid; /* child pid */ 58 struct conninfo *pr_conn; 59 }; 60 61 struct conninfo { 62 LIST_ENTRY(conninfo) co_link; 63 struct sockaddr_storage co_addr; /* source address */ 64 int co_numchild; /* current number of children */ 65 struct procinfo **co_proc; /* array of child proc entry */ 66 }; 67 68 #define PERIPSIZE 256 69 70 struct servtab { 71 char *se_service; /* name of service */ 72 int se_socktype; /* type of socket to use */ 73 int se_family; /* address family */ 74 char *se_proto; /* protocol used */ 75 int se_maxchild; /* max number of children */ 76 int se_maxcpm; /* max connects per IP per minute */ 77 int se_numchild; /* current number of children */ 78 pid_t *se_pids; /* array of child pids */ 79 char *se_user; /* user name to run as */ 80 char *se_group; /* group name to run as */ 81 #ifdef LOGIN_CAP 82 char *se_class; /* login class name to run with */ 83 #endif 84 struct biltin *se_bi; /* if built-in, description */ 85 char *se_server; /* server program */ 86 char *se_server_name; /* server program without path */ 87 #define MAXARGV 20 88 char *se_argv[MAXARGV+1]; /* program arguments */ 89 #ifdef IPSEC 90 char *se_policy; /* IPsec policy string */ 91 #endif 92 int se_fd; /* open descriptor */ 93 union { /* bound address */ 94 struct sockaddr se_un_ctrladdr; 95 struct sockaddr_in se_un_ctrladdr4; 96 struct sockaddr_in6 se_un_ctrladdr6; 97 struct sockaddr_un se_un_ctrladdr_un; 98 } se_un; 99 #define se_ctrladdr se_un.se_un_ctrladdr 100 #define se_ctrladdr4 se_un.se_un_ctrladdr4 101 #define se_ctrladdr6 se_un.se_un_ctrladdr6 102 #define se_ctrladdr_un se_un.se_un_ctrladdr_un 103 socklen_t se_ctrladdr_size; 104 uid_t se_sockuid; /* Owner for unix domain socket */ 105 gid_t se_sockgid; /* Group for unix domain socket */ 106 mode_t se_sockmode; /* Mode for unix domain socket */ 107 u_char se_type; /* type: normal, mux, or mux+ */ 108 u_char se_checked; /* looked at during merge */ 109 u_char se_accept; /* i.e., wait/nowait mode */ 110 u_char se_rpc; /* ==1 if RPC service */ 111 int se_rpc_prog; /* RPC program number */ 112 u_int se_rpc_lowvers; /* RPC low version */ 113 u_int se_rpc_highvers; /* RPC high version */ 114 int se_count; /* number started since se_time */ 115 struct timeval se_time; /* start of se_count */ 116 struct servtab *se_next; 117 struct se_flags { 118 u_int se_nomapped : 1; 119 u_int se_reset : 1; 120 } se_flags; 121 int se_maxperip; /* max number of children per src */ 122 LIST_HEAD(, conninfo) se_conn[PERIPSIZE]; 123 }; 124 125 #define se_nomapped se_flags.se_nomapped 126 #define se_reset se_flags.se_reset 127 128 int check_loop(const struct sockaddr *, const struct servtab *sep); 129 int getvalue(const char *, int *, const char *); 130 char *newstr(const char *); 131 void inetd_setproctitle(const char *, int); 132 void print_service(const char *, const struct servtab *); 133 char *sskip(char **); 134 char *skip(char **); 135 struct servtab *tcpmux(int); 136 137 extern int debug; 138 extern struct servtab *servtab; 139 140 typedef void (bi_fn_t)(int, struct servtab *); 141 142 struct biltin { 143 const char *bi_service; /* internally provided service name */ 144 int bi_socktype; /* type of socket supported */ 145 short bi_fork; /* 1 if should fork before call */ 146 int bi_maxchild; /* max number of children, -1=default */ 147 bi_fn_t *bi_fn; /* function which performs it */ 148 }; 149