mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 10:11:27 +01:00
Matthew Daley
c07134ccca
Patch generated by the following semantic patch (http://coccinelle.lip6.fr/): @@ expression *P; @@ - if(P) free(P); + free(P); ...and then by filtering through the following command: filterdiff -p1 -x 'stubdom/*' -x 'tools/firmware/*' -x 'tools/qemu-*' -x 'tools/blktap*' Signed-off-by: Matthew Daley <mattjd@gmail.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/*
|
|
*
|
|
* Authors: Michael LeMay, <mdlemay@epoch.ncsc.mil>
|
|
* George Coker, <gscoker@alpha.ncsc.mil>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2,
|
|
* as published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <xenctrl.h>
|
|
#include <fcntl.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/stat.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#define USE_MMAP
|
|
|
|
static void usage (int argCnt, const char *args[])
|
|
{
|
|
fprintf(stderr, "Usage: %s <policy.file>\n", args[0]);
|
|
exit(1);
|
|
}
|
|
|
|
int main (int argCnt, const char *args[])
|
|
{
|
|
const char *polFName;
|
|
int polFd = 0;
|
|
void *polMem = NULL;
|
|
void *polMemCp = NULL;
|
|
struct stat info;
|
|
int ret;
|
|
xc_interface *xch = 0;
|
|
|
|
if (argCnt != 2)
|
|
usage(argCnt, args);
|
|
|
|
polFName = args[1];
|
|
polFd = open(polFName, O_RDONLY);
|
|
if ( polFd < 0 )
|
|
{
|
|
fprintf(stderr, "Error occurred opening policy file '%s': %s\n",
|
|
polFName, strerror(errno));
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = stat(polFName, &info);
|
|
if ( ret < 0 )
|
|
{
|
|
fprintf(stderr, "Error occurred retrieving information about"
|
|
"policy file '%s': %s\n", polFName, strerror(errno));
|
|
goto cleanup;
|
|
}
|
|
|
|
polMemCp = malloc(info.st_size);
|
|
|
|
#ifdef USE_MMAP
|
|
polMem = mmap(NULL, info.st_size, PROT_READ, MAP_SHARED, polFd, 0);
|
|
if ( !polMem )
|
|
{
|
|
fprintf(stderr, "Error occurred mapping policy file in memory: %s\n",
|
|
strerror(errno));
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
|
|
xch = xc_interface_open(0,0,0);
|
|
if ( !xch )
|
|
{
|
|
fprintf(stderr, "Unable to create interface to xenctrl: %s\n",
|
|
strerror(errno));
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
|
|
memcpy(polMemCp, polMem, info.st_size);
|
|
#else
|
|
ret = read(polFd, polMemCp, info.st_size);
|
|
if ( ret < 0 )
|
|
{
|
|
fprintf(stderr, "Unable to read new Flask policy file: %s\n",
|
|
strerror(errno));
|
|
goto cleanup;
|
|
}
|
|
else
|
|
{
|
|
printf("Read %d bytes from policy file '%s'.\n", ret, polFName);
|
|
}
|
|
#endif
|
|
|
|
ret = xc_flask_load(xch, polMemCp, info.st_size);
|
|
if ( ret < 0 )
|
|
{
|
|
errno = -ret;
|
|
fprintf(stderr, "Unable to load new Flask policy: %s\n",
|
|
strerror(errno));
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
else
|
|
{
|
|
printf("Successfully loaded policy.\n");
|
|
}
|
|
|
|
done:
|
|
free(polMemCp);
|
|
if ( polMem )
|
|
{
|
|
ret = munmap(polMem, info.st_size);
|
|
if ( ret < 0 )
|
|
fprintf(stderr, "Unable to unmap policy memory: %s\n", strerror(errno));
|
|
}
|
|
if ( polFd )
|
|
close(polFd);
|
|
if ( xch )
|
|
xc_interface_close(xch);
|
|
|
|
return ret;
|
|
|
|
cleanup:
|
|
goto done;
|
|
}
|