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/*-
* Copyright (c) 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <nv.h>
#include "msgio.h"
#include "libcapsicum.h"
#include "libcapsicum_impl.h"
#include "libcapsicum_service.h"
cap_channel_t *
cap_service_open(const cap_channel_t *chan, const char *name)
{
cap_channel_t *newchan;
nvlist_t *nvl;
int sock, error;
sock = -1;
nvl = nvlist_create(0);
nvlist_add_string(nvl, "cmd", "open");
nvlist_add_string(nvl, "service", name);
if (fd_is_valid(STDERR_FILENO))
nvlist_add_descriptor(nvl, "stderrfd", STDERR_FILENO);
nvl = cap_xfer_nvlist(chan, nvl);
if (nvl == NULL)
return (NULL);
error = (int)nvlist_get_number(nvl, "error");
if (error != 0) {
nvlist_destroy(nvl);
errno = error;
return (NULL);
}
sock = nvlist_take_descriptor(nvl, "chanfd");
assert(sock >= 0);
nvlist_destroy(nvl);
nvl = NULL;
if (cred_send(sock) == -1)
goto fail;
newchan = cap_wrap(sock);
if (newchan == NULL)
goto fail;
return (newchan);
fail:
error = errno;
close(sock);
errno = error;
return (NULL);
}
int
cap_service_limit(const cap_channel_t *chan, const char * const *names,
size_t nnames)
{
nvlist_t *limits;
unsigned int i;
limits = nvlist_create(0);
for (i = 0; i < nnames; i++)
nvlist_add_null(limits, names[i]);
return (cap_limit_set(chan, limits));
}
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