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/*-
* Copyright (c) 2012-2013 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Pawel Jakub Dawidek under sponsorship from
* the FreeBSD Foundation.
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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 AUTHORS OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef _LIBCAPSICUM_H_
#define _LIBCAPSICUM_H_
#ifndef _NVLIST_T_DECLARED
#define _NVLIST_T_DECLARED
struct nvlist;
typedef struct nvlist nvlist_t;
#endif
#ifndef _CAP_CHANNEL_T_DECLARED
#define _CAP_CHANNEL_T_DECLARED
struct cap_channel;
typedef struct cap_channel cap_channel_t;
#endif
/*
* The function opens unrestricted communication channel to Casper.
*/
cap_channel_t *cap_init(void);
/*
* The function creates cap_channel_t based on the given socket.
*/
cap_channel_t *cap_wrap(int sock);
/*
* The function returns communication socket and frees cap_channel_t.
*/
int cap_unwrap(cap_channel_t *chan);
/*
* The function clones the given capability.
*/
cap_channel_t *cap_clone(const cap_channel_t *chan);
/*
* The function closes the given capability.
*/
void cap_close(cap_channel_t *chan);
/*
* The function returns socket descriptor associated with the given
* cap_channel_t for use with select(2)/kqueue(2)/etc.
*/
int cap_sock(const cap_channel_t *chan);
/*
* The function limits the given capability.
* It always destroys 'limits' on return.
*/
int cap_limit_set(const cap_channel_t *chan, nvlist_t *limits);
/*
* The function returns current limits of the given capability.
*/
int cap_limit_get(const cap_channel_t *chan, nvlist_t **limitsp);
#ifdef TODO
/*
* The function registers a service within provided Casper's capability.
* It will run with the same privileges the process has at the time of
* calling this function.
*/
int cap_service_register(cap_channel_t *chan, const char *name,
cap_func_t *func);
#endif
/*
* Function sends nvlist over the given capability.
*/
int cap_send_nvlist(const cap_channel_t *chan, const nvlist_t *nvl);
/*
* Function receives nvlist over the given capability.
*/
nvlist_t *cap_recv_nvlist(const cap_channel_t *chan, int flags);
/*
* Function sends the given nvlist, destroys it and receives new nvlist in
* response over the given capability.
*/
nvlist_t *cap_xfer_nvlist(const cap_channel_t *chan, nvlist_t *nvl, int flags);
#endif /* !_LIBCAPSICUM_H_ */
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