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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include "private.h"
static int all_restrict_cb(Xentoolcore__Active_Handle *ah, domid_t domid) {
xencall_handle *xcall = CONTAINER_OF(ah, *xcall, tc_ah);
int rc;
rc = xentoolcore__restrict_by_dup2_null(xcall->buf_fd);
if ( rc )
goto out;
rc = xentoolcore__restrict_by_dup2_null(xcall->fd);
out:
return rc;
}
xencall_handle *xencall_open(xentoollog_logger *logger, unsigned open_flags)
{
xencall_handle *xcall = malloc(sizeof(*xcall));
int rc;
if (!xcall) return NULL;
xcall->fd = -1;
xcall->buf_fd = -1;
xcall->tc_ah.restrict_callback = all_restrict_cb;
xentoolcore__register_active_handle(&xcall->tc_ah);
xcall->flags = open_flags;
xcall->buffer_cache_nr = 0;
xcall->buffer_total_allocations = 0;
xcall->buffer_total_releases = 0;
xcall->buffer_current_allocations = 0;
xcall->buffer_maximum_allocations = 0;
xcall->buffer_cache_hits = 0;
xcall->buffer_cache_misses = 0;
xcall->buffer_cache_toobig = 0;
xcall->logger = logger;
xcall->logger_tofree = NULL;
if (!xcall->logger) {
xcall->logger = xcall->logger_tofree =
(xentoollog_logger*)
xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
if (!xcall->logger) goto err;
}
rc = osdep_xencall_open(xcall);
if ( rc < 0 ) goto err;
return xcall;
err:
xentoolcore__deregister_active_handle(&xcall->tc_ah);
osdep_xencall_close(xcall);
xtl_logger_destroy(xcall->logger_tofree);
free(xcall);
return NULL;
}
int xencall_close(xencall_handle *xcall)
{
int rc;
if ( !xcall )
return 0;
xentoolcore__deregister_active_handle(&xcall->tc_ah);
rc = osdep_xencall_close(xcall);
buffer_release_cache(xcall);
xtl_logger_destroy(xcall->logger_tofree);
free(xcall);
return rc;
}
int xencall_fd(xencall_handle *xcall)
{
return xcall->fd;
}
int xencall0(xencall_handle *xcall, unsigned int op)
{
privcmd_hypercall_t call = {
.op = op,
};
return osdep_hypercall(xcall, &call);
}
int xencall1(xencall_handle *xcall, unsigned int op,
uint64_t arg1)
{
privcmd_hypercall_t call = {
.op = op,
.arg = { arg1 },
};
return osdep_hypercall(xcall, &call);
}
int xencall2(xencall_handle *xcall, unsigned int op,
uint64_t arg1, uint64_t arg2)
{
privcmd_hypercall_t call = {
.op = op,
.arg = { arg1, arg2 },
};
return osdep_hypercall(xcall, &call);
}
long xencall2L(xencall_handle *xcall, unsigned int op,
uint64_t arg1, uint64_t arg2)
{
privcmd_hypercall_t call = {
.op = op,
.arg = { arg1, arg2 },
};
return osdep_hypercall(xcall, &call);
}
int xencall3(xencall_handle *xcall, unsigned int op,
uint64_t arg1, uint64_t arg2, uint64_t arg3)
{
privcmd_hypercall_t call = {
.op = op,
.arg = { arg1, arg2, arg3},
};
return osdep_hypercall(xcall, &call);
}
int xencall4(xencall_handle *xcall, unsigned int op,
uint64_t arg1, uint64_t arg2, uint64_t arg3,
uint64_t arg4)
{
privcmd_hypercall_t call = {
.op = op,
.arg = { arg1, arg2, arg3, arg4 },
};
return osdep_hypercall(xcall, &call);
}
int xencall5(xencall_handle *xcall, unsigned int op,
uint64_t arg1, uint64_t arg2, uint64_t arg3,
uint64_t arg4, uint64_t arg5)
{
privcmd_hypercall_t call = {
.op = op,
.arg = { arg1, arg2, arg3, arg4, arg5 },
};
return osdep_hypercall(xcall, &call);
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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