229831d19f
how to use this feature are in the man page. This is based on work by Lyndon Nerenberg. (The only difficult part about this patch is the fact that you can't fchown a unix domain socket, which means the sockets must be put in a secure directory). Reviewed by: dillon
165 lines
6.3 KiB
C
165 lines
6.3 KiB
C
/*
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* Copyright (c) 1983, 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#define BUFSIZE 8192
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#define LINESIZ 72
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#define NORM_TYPE 0
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#define MUX_TYPE 1
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#define MUXPLUS_TYPE 2
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#define TTCP_TYPE 3
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#define FAITH_TYPE 4
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#define ISMUX(sep) (((sep)->se_type == MUX_TYPE) || \
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((sep)->se_type == MUXPLUS_TYPE))
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#define ISMUXPLUS(sep) ((sep)->se_type == MUXPLUS_TYPE)
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#define ISTTCP(sep) ((sep)->se_type == TTCP_TYPE)
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struct servtab {
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char *se_service; /* name of service */
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int se_socktype; /* type of socket to use */
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int se_family; /* address family */
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char *se_proto; /* protocol used */
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int se_maxchild; /* max number of children */
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int se_maxcpm; /* max connects per IP per minute */
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int se_numchild; /* current number of children */
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pid_t *se_pids; /* array of child pids */
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char *se_user; /* user name to run as */
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char *se_group; /* group name to run as */
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#ifdef LOGIN_CAP
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char *se_class; /* login class name to run with */
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#endif
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struct biltin *se_bi; /* if built-in, description */
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char *se_server; /* server program */
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char *se_server_name; /* server program without path */
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#define MAXARGV 20
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char *se_argv[MAXARGV+1]; /* program arguments */
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#ifdef IPSEC
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char *se_policy; /* IPsec policy string */
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#endif
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int se_fd; /* open descriptor */
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union { /* bound address */
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struct sockaddr se_un_ctrladdr;
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struct sockaddr_in se_un_ctrladdr4;
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struct sockaddr_in6 se_un_ctrladdr6;
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struct sockaddr_un se_un_ctrladdr_un;
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} se_un;
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#define se_ctrladdr se_un.se_un_ctrladdr
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#define se_ctrladdr4 se_un.se_un_ctrladdr4
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#define se_ctrladdr6 se_un.se_un_ctrladdr6
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#define se_ctrladdr_un se_un.se_un_ctrladdr_un
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socklen_t se_ctrladdr_size;
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uid_t se_sockuid; /* Owner for unix domain socket */
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gid_t se_sockgid; /* Group for unix domain socket */
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mode_t se_sockmode; /* Mode for unix domain socket */
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u_char se_type; /* type: normal, mux, or mux+ */
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u_char se_checked; /* looked at during merge */
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u_char se_accept; /* i.e., wait/nowait mode */
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u_char se_rpc; /* ==1 if RPC service */
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int se_rpc_prog; /* RPC program number */
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u_int se_rpc_lowvers; /* RPC low version */
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u_int se_rpc_highvers; /* RPC high version */
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int se_count; /* number started since se_time */
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struct timeval se_time; /* start of se_count */
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struct servtab *se_next;
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struct se_flags {
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u_int se_nomapped : 1;
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u_int se_reset : 1;
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} se_flags;
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};
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#define se_nomapped se_flags.se_nomapped
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#define se_reset se_flags.se_reset
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void chargen_dg __P((int, struct servtab *));
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void chargen_stream __P((int, struct servtab *));
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void close_sep __P((struct servtab *));
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void flag_signal __P((int));
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void flag_config __P((int));
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void config __P((void));
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void daytime_dg __P((int, struct servtab *));
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void daytime_stream __P((int, struct servtab *));
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void discard_dg __P((int, struct servtab *));
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void discard_stream __P((int, struct servtab *));
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void echo_dg __P((int, struct servtab *));
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void echo_stream __P((int, struct servtab *));
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void endconfig __P((void));
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struct servtab *enter __P((struct servtab *));
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void freeconfig __P((struct servtab *));
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struct servtab *getconfigent __P((void));
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void iderror __P((int, int, int, char *));
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void ident_stream __P((int, struct servtab *));
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void machtime_dg __P((int, struct servtab *));
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void machtime_stream __P((int, struct servtab *));
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int matchservent __P((char *, char *, char *));
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char *newstr __P((char *));
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char *nextline __P((FILE *));
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void print_service __P((char *, struct servtab *));
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void addchild __P((struct servtab *, int));
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void flag_reapchild __P((int));
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void reapchild __P((void));
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void enable __P((struct servtab *));
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void disable __P((struct servtab *));
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void flag_retry __P((int));
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void retry __P((void));
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int setconfig __P((void));
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void setup __P((struct servtab *));
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#ifdef IPSEC
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void ipsecsetup __P((struct servtab *));
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#endif
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char *sskip __P((char **));
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char *skip __P((char **));
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struct servtab *tcpmux __P((int));
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int cpmip __P((struct servtab *, int));
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void inetd_setproctitle __P((char *, int));
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int check_loop __P((struct sockaddr *, struct servtab *sep));
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void unregisterrpc __P((register struct servtab *sep));
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struct biltin {
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char *bi_service; /* internally provided service name */
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int bi_socktype; /* type of socket supported */
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short bi_fork; /* 1 if should fork before call */
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int bi_maxchild; /* max number of children, -1=default */
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void (*bi_fn)(); /* function which performs it */
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};
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