146 lines
5.2 KiB
C
146 lines
5.2 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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* 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 <sys/queue.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 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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struct procinfo {
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LIST_ENTRY(procinfo) pr_link;
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pid_t pr_pid; /* child pid */
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struct conninfo *pr_conn;
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};
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struct conninfo {
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LIST_ENTRY(conninfo) co_link;
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struct sockaddr_storage co_addr; /* source address */
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int co_numchild; /* current number of children */
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struct procinfo **co_proc; /* array of child proc entry */
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};
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#define PERIPSIZE 256
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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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int se_maxperip; /* max number of children per src */
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LIST_HEAD(, conninfo) se_conn[PERIPSIZE];
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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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int check_loop(const struct sockaddr *, const struct servtab *sep);
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int getvalue(const char *, int *, const char *);
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char *newstr(const char *);
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void inetd_setproctitle(const char *, int);
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void print_service(const char *, const struct servtab *);
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char *sskip(char **);
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char *skip(char **);
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struct servtab *tcpmux(int);
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extern int debug;
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extern struct servtab *servtab;
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typedef void (bi_fn_t)(int, struct servtab *);
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struct biltin {
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const 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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bi_fn_t *bi_fn; /* function which performs it */
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};
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