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/*-
* Copyright (c) 2018, Juniper Networks, Inc.
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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 <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
#include <paths.h>
#include <err.h>
#include <syslog.h>
#include <libsecureboot.h>
#include <libveriexec.h>
#include "veriexec.h"
int dev_fd = -1;
int ForceFlags = 0;
int Verbose = 0;
int VeriexecVersion = 0;
const char *Cdir = NULL;
static int
veriexec_load(const char *manifest)
{
unsigned char *content;
int rc;
content = verify_signed(manifest, VEF_VERBOSE);
if (!content)
errx(EX_USAGE, "cannot verify %s", manifest);
if (manifest_open(manifest, content)) {
rc = yyparse();
} else {
err(EX_NOINPUT, "cannot load %s", manifest);
}
free(content);
return (rc);
}
int
main(int argc, char *argv[])
{
unsigned long ctl;
int c;
int x;
dev_fd = open(_PATH_DEV_VERIEXEC, O_WRONLY, 0);
while ((c = getopt(argc, argv, "C:i:xvz:")) != -1) {
switch (c) {
case 'C':
Cdir = optarg;
break;
case 'i':
if (dev_fd < 0) {
err(EX_UNAVAILABLE, "cannot open veriexec");
}
if (ioctl(dev_fd, VERIEXEC_GETSTATE, &x)) {
err(EX_UNAVAILABLE,
"Cannot get veriexec state");
}
switch (optarg[0]) {
case 'a': /* active */
ctl = VERIEXEC_STATE_ACTIVE;
break;
case 'e': /* enforce */
ctl = VERIEXEC_STATE_ENFORCE;
break;
case 'l': /* loaded/locked */
ctl = (strncmp(optarg, "lock", 4) == 0) ?
VERIEXEC_STATE_LOCKED :
VERIEXEC_STATE_LOADED;
break;
default:
errx(EX_USAGE, "unknown state %s", optarg);
break;
}
exit((x & ctl) == 0);
break;
case 'v':
Verbose++;
break;
case 'x':
/*
* -x says all other args are paths to check.
*/
for (x = 0; optind < argc; optind++) {
if (veriexec_check_path(argv[optind])) {
warn("%s", argv[optind]);
x = 2;
}
}
exit(x);
break;
case 'z':
switch (optarg[0]) {
case 'a': /* active */
ctl = VERIEXEC_ACTIVE;
break;
case 'd': /* debug* */
ctl = (strstr(optarg, "off")) ?
VERIEXEC_DEBUG_OFF : VERIEXEC_DEBUG_ON;
if (optind < argc && ctl == VERIEXEC_DEBUG_ON) {
x = atoi(argv[optind]);
if (x == 0)
ctl = VERIEXEC_DEBUG_OFF;
}
break;
case 'e': /* enforce */
ctl = VERIEXEC_ENFORCE;
break;
case 'g':
ctl = VERIEXEC_GETSTATE; /* get state */
break;
case 'l': /* lock */
ctl = VERIEXEC_LOCK;
break;
default:
errx(EX_USAGE, "unknown command %s", optarg);
break;
}
if (dev_fd < 0) {
err(EX_UNAVAILABLE, "cannot open veriexec");
}
if (ioctl(dev_fd, ctl, &x)) {
err(EX_UNAVAILABLE, "cannot %s veriexec", optarg);
}
if (ctl == VERIEXEC_DEBUG_ON ||
ctl == VERIEXEC_DEBUG_OFF) {
printf("debug is: %d\n", x);
} else if (ctl == VERIEXEC_GETSTATE) {
printf("%#o\n", x);
}
exit(EX_OK);
break;
}
}
openlog(getprogname(), LOG_PID, LOG_AUTH);
if (ve_trust_init() < 1)
errx(EX_OSFILE, "cannot initialize trust store");
#ifdef VERIEXEC_GETVERSION
if (ioctl(dev_fd, VERIEXEC_GETVERSION, &VeriexecVersion)) {
VeriexecVersion = 0; /* unknown */
}
#endif
for (; optind < argc; optind++) {
if (veriexec_load(argv[optind])) {
err(EX_DATAERR, "cannot load %s", argv[optind]);
}
}
exit(EX_OK);
}