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/* $OpenBSD: cvsd.h,v 1.6 2004/11/09 20:51:33 krapht Exp $ */
/*
* Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CVSD_H
#define CVSD_H
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <pwd.h>
#include <grp.h>
#include <signal.h>
#include "cvs.h"
#define CVSD_USER "_cvsd"
#define CVSD_GROUP "_cvsd"
#define CVSD_CONF "/etc/cvsd.conf"
#define CVSD_CHILD_DEFMIN 3
#define CVSD_CHILD_DEFMAX 5
#define CVSD_FPERM (S_IRUSR | S_IWUSR)
#define CVSD_DPERM (S_IRWXU)
/* requests */
#define CVSD_MSG_GETUID 1
#define CVSD_MSG_GETUNAME 2
#define CVSD_MSG_GETGID 3
#define CVSD_MSG_GETGNAME 4
#define CVSD_MSG_PASSFD 5 /* server passes client file descriptor */
#define CVSD_MSG_SETIDLE 6 /* client has no further processing to do */
/* replies */
#define CVSD_MSG_UID 128
#define CVSD_MSG_UNAME 129
#define CVSD_MSG_GID 130
#define CVSD_MSG_GNAME 131
#define CVSD_MSG_SHUTDOWN 253
#define CVSD_MSG_OK 254
#define CVSD_MSG_ERROR 255
#define CVSD_MSG_MAXLEN 256
#define CVSD_SET_ROOT 1
#define CVSD_SET_CHMIN 2
#define CVSD_SET_CHMAX 3
#define CVSD_SET_ADDR 4
#define CVSD_SET_SOCK 5
#define CVSD_SET_USER 6
#define CVSD_SET_GROUP 7
#define CVSD_SET_MODDIR 8
#define CVSD_ST_UNKNOWN 0
#define CVSD_ST_IDLE 1
#define CVSD_ST_BUSY 2
#define CVSD_ST_DEAD 3
#define CVSD_ST_STOPPED 4
/* message structure to pass data between the parent and the chrooted child */
struct cvsd_msg {
u_int8_t cm_type;
u_int8_t cm_len; /* length of message data in bytes */
};
struct cvsd_addr {
sa_family_t ca_fam;
union {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
} ca_addr;
};
#define CVSD_SESS_LOCAL 0
#define CVSD_SESS_REMOTE 1
struct cvsd_sess {
int cs_fd;
int cs_type;
uid_t cs_uid; /* user ID of the session */
struct cvsd_addr cs_raddr; /* remote address */
};
struct cvsd_child {
pid_t ch_pid;
int ch_sock;
u_int ch_state;
struct cvsd_sess *ch_sess;
TAILQ_ENTRY(cvsd_child) ch_list;
};
extern uid_t cvsd_uid;
extern gid_t cvsd_gid;
int cvsd_set (int, ...);
int cvsd_checkperms (const char *);
int cvsd_child_fork (struct cvsd_child **);
struct cvsd_child* cvsd_child_get (void);
int cvsd_child_reap (void);
/* from conf.y */
int cvs_conf_read (const char *);
u_int cvs_acl_eval (struct cvs_op *);
/* from msg.c */
int cvsd_sendmsg (int, u_int, const void *, size_t);
int cvsd_recvmsg (int, u_int *, void *, size_t *);
int cvsd_sendfd (int, int);
int cvsd_recvfd (int);
struct cvsd_sess* cvsd_sess_alloc (int);
void cvsd_sess_free (struct cvsd_sess *);
#endif /* CVSD_H */
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