1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2013 The FreeBSD Foundation
5  * Copyright (c) 2015 Mariusz Zaborski <oshogbo@FreeBSD.org>
6  * All rights reserved.
7  *
8  * This software was developed by Pawel Jakub Dawidek under sponsorship from
9  * the FreeBSD Foundation.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #ifndef	_LIBCASPER_IMPL_H_
34 #define	_LIBCASPER_IMPL_H_
35 
36 #include <stdbool.h>
37 
38 #include "libcasper.h"
39 #include "libcasper_service.h"
40 
41 struct service;
42 struct service_connection;
43 
44 bool fd_is_valid(int fd);
45 void fd_fix_environment(int *fdp);
46 
47 /* Private service functions. */
48 struct service	*service_alloc(const char *name,
49 		    service_limit_func_t *limitfunc,
50 		    service_command_func_t *commandfunc, uint64_t flags);
51 void		 service_free(struct service *service);
52 void		 service_message(struct service *service,
53 		    struct service_connection *sconn);
54 void		 service_start(struct service *service, int sock, int procfd);
55 const char	*service_name(struct service *service);
56 int		 service_get_channel_flags(struct service *service);
57 
58 /* Private service connection functions. */
59 struct service_connection	*service_connection_add(struct service *service,
60 				    int sock, const nvlist_t *limits);
61 void				 service_connection_remove(
62 				    struct service *service,
63 				    struct service_connection *sconn);
64 int				 service_connection_clone(
65 				    struct service *service,
66 				    struct service_connection *sconn);
67 struct service_connection	*service_connection_first(
68 				    struct service *service);
69 struct service_connection	*service_connection_next(
70 				    struct service_connection *sconn);
71 cap_channel_t			*service_connection_get_chan(
72 				    const struct service_connection *sconn);
73 int				 service_connection_get_sock(
74 				    const struct service_connection *sconn);
75 const nvlist_t			*service_connection_get_limits(
76 				    const struct service_connection *sconn);
77 void				 service_connection_set_limits(
78 				    struct service_connection *sconn,
79 				    nvlist_t *limits);
80 
81 /* Private libcasper functions. */
82 void	casper_main_loop(int fd);
83 
84 #endif	/* !_LIBCASPER_IMPL_H_ */
85