void write_crypto_cache(const char *dir, const char *progname, int port)
{
POOLMEM *fname = get_pool_memory(PM_FNAME);
Mmsg(&fname, "%s/%s.%d.cryptoc", dir, progname, port);
write_crypto_cache(fname);
free_pool_memory(fname);
}
/**
* Common routine for:
* dir_get_volume_info()
* and
* dir_find_next_appendable_volume()
*
* NOTE!!! All calls to this routine must be protected by
* locking vol_info_mutex before calling it so that
* we don't have one thread modifying the parameters
* and another reading them.
*
* Returns: true on success and vol info in dcr->VolCatInfo
* false on failure
*/
static bool do_get_volume_info(DCR *dcr)
{
JCR *jcr = dcr->jcr;
BSOCK *dir = jcr->dir_bsock;
VOLUME_CAT_INFO vol;
int n;
int32_t InChanger;
dcr->setVolCatInfo(false);
if (dir->recv() <= 0) {
Dmsg0(dbglvl, "getvolname error bnet_recv\n");
Mmsg(jcr->errmsg, _("Network error on bnet_recv in req_vol_info.\n"));
return false;
}
memset(&vol, 0, sizeof(vol));
Dmsg1(dbglvl, "<dird %s", dir->msg);
n = sscanf(dir->msg, OK_media, vol.VolCatName,
&vol.VolCatJobs, &vol.VolCatFiles,
&vol.VolCatBlocks, &vol.VolCatBytes,
&vol.VolCatMounts, &vol.VolCatErrors,
&vol.VolCatWrites, &vol.VolCatMaxBytes,
&vol.VolCatCapacityBytes, vol.VolCatStatus,
&vol.Slot, &vol.VolCatMaxJobs, &vol.VolCatMaxFiles,
&InChanger, &vol.VolReadTime, &vol.VolWriteTime,
&vol.EndFile, &vol.EndBlock, &vol.LabelType,
&vol.VolMediaId, vol.VolEncrKey,
&vol.VolMinBlocksize, &vol.VolMaxBlocksize);
if (n != 24) {
Dmsg3(dbglvl, "Bad response from Dir fields=%d, len=%d: %s",
n, dir->msglen, dir->msg);
Mmsg(jcr->errmsg, _("Error getting Volume info: %s"), dir->msg);
return false;
}
vol.InChanger = InChanger; /* bool in structure */
vol.is_valid = true;
unbash_spaces(vol.VolCatName);
bstrncpy(dcr->VolumeName, vol.VolCatName, sizeof(dcr->VolumeName));
dcr->VolCatInfo = vol; /* structure assignment */
/*
* If we received a new crypto key update the cache and write out the new cache on a change.
*/
if (*vol.VolEncrKey) {
if (update_crypto_cache(vol.VolCatName, vol.VolEncrKey)) {
write_crypto_cache(me->working_directory, "bareos-sd",
get_first_port_host_order(me->SDaddrs));
}
}
Dmsg4(dbglvl, "do_get_volume_info return true slot=%d Volume=%s, "
"VolminBlocksize=%u VolMaxBlocksize=%u\n",
vol.Slot, vol.VolCatName, vol.VolMinBlocksize, vol.VolMaxBlocksize);
Dmsg2(dbglvl, "setting dcr->VolMinBlocksize(%u) to vol.VolMinBlocksize(%u)\n",
dcr->VolMinBlocksize, vol.VolMinBlocksize);
Dmsg2(dbglvl, "setting dcr->VolMaxBlocksize(%u) to vol.VolMaxBlocksize(%u)\n",
dcr->VolMaxBlocksize, vol.VolMaxBlocksize);
/*
* Assign the volcatinfo to the dcr.
*/
dcr->VolMinBlocksize = vol.VolMinBlocksize;
dcr->VolMaxBlocksize = vol.VolMaxBlocksize;
return true;
}
int main(int argc, char *const *argv)
{
int retval = 0;
int ch, kfd, length;
bool base64_transform = false,
clear_encryption = false,
drive_encryption_status = false,
generate_passphrase = false,
populate_cache = false,
set_encryption = false,
show_keydata = false,
volume_encryption_status = false,
wrapped_keys = false;
char *keyfile = NULL;
char *cache_file = NULL;
char *wrap_keyfile = NULL;
char keydata[64];
char wrapdata[64];
setlocale(LC_ALL, "");
bindtextdomain("bareos", LOCALEDIR);
textdomain("bareos");
while ((ch = getopt(argc, argv, "bcd:eg:k:p:s:vw:?")) != -1) {
switch (ch) {
case 'b':
base64_transform = true;
break;
case 'c':
clear_encryption = true;
break;
case 'd':
debug_level = atoi(optarg);
if (debug_level <= 0) {
debug_level = 1;
}
break;
case 'e':
drive_encryption_status = true;
break;
case 'g':
generate_passphrase = true;
if (keyfile) {
usage();
goto bail_out;
}
keyfile = bstrdup(optarg);
break;
case 'k':
show_keydata = true;
if (keyfile) {
usage();
goto bail_out;
}
keyfile = bstrdup(optarg);
break;
case 'p':
populate_cache = true;
cache_file = bstrdup(optarg);
break;
case 's':
set_encryption = true;
if (keyfile) {
usage();
goto bail_out;
}
keyfile = bstrdup(optarg);
break;
case 'v':
volume_encryption_status = true;
break;
case 'w':
wrapped_keys = true;
wrap_keyfile = bstrdup(optarg);
break;
case '?':
default:
usage();
goto bail_out;
}
}
argc -= optind;
argv += optind;
if (!generate_passphrase && !show_keydata && !populate_cache && argc < 1) {
fprintf(stderr, _("Missing device_name argument for this option\n"));
usage();
retval = 1;
goto bail_out;
}
if (generate_passphrase && show_keydata) {
fprintf(stderr, _("Either use -g or -k not both\n"));
retval = 1;
goto bail_out;
}
if (clear_encryption && set_encryption) {
fprintf(stderr, _("Either use -c or -s not both\n"));
retval = 1;
goto bail_out;
}
if ((clear_encryption ||
set_encryption) &&
(drive_encryption_status ||
volume_encryption_status)) {
fprintf(stderr, _("Either set or clear the crypto key or ask for status not both\n"));
retval = 1;
goto bail_out;
}
if ((clear_encryption ||
set_encryption ||
drive_encryption_status ||
volume_encryption_status) &&
(generate_passphrase ||
show_keydata ||
populate_cache)) {
fprintf(stderr, _("Don't mix operations which are incompatible "
"e.g. generate/show vs set/clear etc.\n"));
retval = 1;
goto bail_out;
}
OSDependentInit();
init_msg(NULL, NULL);
if (populate_cache) {
char *VolumeName, *EncrKey;
char new_cache_entry[256];
/*
* Load any keys currently in the cache.
*/
read_crypto_cache(cache_file);
/*
* Read new entries from stdin and parse them to update
* the cache.
*/
fprintf(stdout, _("Enter cache entrie(s) (close with ^D): "));
fflush(stdout);
while (read(1, new_cache_entry, sizeof(new_cache_entry)) > 0) {
strip_trailing_junk(new_cache_entry);
/*
* Try to parse the entry.
*/
VolumeName = new_cache_entry;
EncrKey = strchr(new_cache_entry, '\t');
if (!EncrKey) {
break;
}
*EncrKey++ = '\0';
update_crypto_cache(VolumeName, EncrKey);
}
/*
* Write out the new cache entries.
*/
write_crypto_cache(cache_file);
goto bail_out;
}
memset(keydata, 0, sizeof(keydata));
memset(wrapdata, 0, sizeof(wrapdata));
if (wrapped_keys) {
/*
* Read the key bits from the keyfile.
* - == stdin
*/
if (bstrcmp(wrap_keyfile, "-")) {
kfd = 0;
fprintf(stdout, _("Enter Key Encryption Key: "));
fflush(stdout);
} else {
kfd = open(wrap_keyfile, O_RDONLY);
if (kfd < 0) {
fprintf(stderr, _("Cannot open keyfile %s\n"), wrap_keyfile);
retval = 1;
goto bail_out;
}
}
read(kfd, wrapdata, sizeof(wrapdata));
if (kfd > 0) {
close(kfd);
}
strip_trailing_junk(wrapdata);
Dmsg1(10, "Wrapped keydata = %s\n", wrapdata);
}
/*
* Generate a new passphrase allow it to be wrapped using the given wrapkey
* and base64 if specified or when wrapped.
*/
if (generate_passphrase) {
int cnt;
char *passphrase;
passphrase = generate_crypto_passphrase(DEFAULT_PASSPHRASE_LENGTH);
if (!passphrase) {
retval = 1;
goto bail_out;
}
Dmsg1(10, "Generated passphrase = %s\n", passphrase);
/*
* See if we need to wrap the passphrase.
*/
if (wrapped_keys) {
char *wrapped_passphrase;
length = DEFAULT_PASSPHRASE_LENGTH + 8;
wrapped_passphrase = (char *)malloc(length);
memset(wrapped_passphrase, 0, length);
aes_wrap((unsigned char *)wrapdata,
DEFAULT_PASSPHRASE_LENGTH / 8,
(unsigned char *)passphrase,
(unsigned char *)wrapped_passphrase);
free(passphrase);
passphrase = wrapped_passphrase;
} else {
length = DEFAULT_PASSPHRASE_LENGTH;
}
/*
* See where to write the key.
* - == stdout
*/
if (bstrcmp(keyfile, "-")) {
kfd = 1;
} else {
kfd = open(keyfile, O_WRONLY | O_CREAT, 0644);
if (kfd < 0) {
fprintf(stderr, _("Cannot open keyfile %s\n"), keyfile);
free(passphrase);
retval = 1;
goto bail_out;
}
}
if (base64_transform || wrapped_keys) {
cnt = bin_to_base64(keydata, sizeof(keydata), passphrase, length, true);
if (write(kfd, keydata, cnt) != cnt) {
fprintf(stderr, _("Failed to write %d bytes to keyfile %s\n"), cnt, keyfile);
}
} else {
cnt = DEFAULT_PASSPHRASE_LENGTH;
if (write(kfd, passphrase, cnt) != cnt) {
fprintf(stderr, _("Failed to write %d bytes to keyfile %s\n"), cnt, keyfile);
}
}
Dmsg1(10, "Keydata = %s\n", keydata);
if (kfd > 1) {
close(kfd);
} else {
write(kfd, "\n", 1);
}
free(passphrase);
goto bail_out;
}
if (show_keydata) {
char *passphrase;
/*
* Read the key bits from the keyfile.
* - == stdin
*/
if (bstrcmp(keyfile, "-")) {
kfd = 0;
fprintf(stdout, _("Enter Encryption Key: "));
fflush(stdout);
} else {
kfd = open(keyfile, O_RDONLY);
if (kfd < 0) {
fprintf(stderr, _("Cannot open keyfile %s\n"), keyfile);
retval = 1;
goto bail_out;
}
}
read(kfd, keydata, sizeof(keydata));
if (kfd > 0) {
close(kfd);
}
strip_trailing_junk(keydata);
Dmsg1(10, "Keydata = %s\n", keydata);
/*
* See if we need to unwrap the passphrase.
*/
if (wrapped_keys) {
char *wrapped_passphrase;
/*
* A wrapped key is base64 encoded after it was wrapped so first
* convert it from base64 to bin. As we first go from base64 to bin
* and the base64_to_bin has a check if the decoded string will fit
* we need to alocate some more bytes for the decoded buffer to be
* sure it will fit.
*/
length = DEFAULT_PASSPHRASE_LENGTH + 12;
wrapped_passphrase = (char *)malloc(length);
memset(wrapped_passphrase, 0, length);
if (base64_to_bin(wrapped_passphrase, length,
keydata, strlen(keydata)) == 0) {
fprintf(stderr,
_("Failed to base64 decode the keydata read from %s, aborting...\n"),
keyfile);
free(wrapped_passphrase);
goto bail_out;
}
length = DEFAULT_PASSPHRASE_LENGTH;
passphrase = (char *)malloc(length);
memset(passphrase, 0, length);
if (aes_unwrap((unsigned char *)wrapdata,
length / 8,
(unsigned char *)wrapped_passphrase,
(unsigned char *)passphrase) == -1) {
fprintf(stderr,
_("Failed to aes unwrap the keydata read from %s using the wrap data from %s, aborting...\n"),
keyfile, wrap_keyfile);
free(wrapped_passphrase);
goto bail_out;
}
free(wrapped_passphrase);
} else {
if (base64_transform) {
/*
* As we first go from base64 to bin and the base64_to_bin has a check
* if the decoded string will fit we need to alocate some more bytes
* for the decoded buffer to be sure it will fit.
*/
length = DEFAULT_PASSPHRASE_LENGTH + 4;
passphrase = (char *)malloc(length);
memset(passphrase, 0, length);
base64_to_bin(passphrase, length, keydata, strlen(keydata));
} else {
length = DEFAULT_PASSPHRASE_LENGTH;
passphrase = (char *)malloc(length);
memset(passphrase, 0, length);
bstrncpy(passphrase, keydata, length);
}
}
Dmsg1(10, "Unwrapped passphrase = %s\n", passphrase);
fprintf(stdout, "%s\n", passphrase);
free(passphrase);
goto bail_out;
}
/*
* Clear the loaded encryption key of the given drive.
*/
if (clear_encryption) {
if (clear_scsi_encryption_key(-1, argv[0])) {
goto bail_out;
} else {
retval = 1;
goto bail_out;
}
}
/*
* Get the drive encryption status of the given drive.
*/
if (drive_encryption_status) {
POOLMEM *encryption_status = get_pool_memory(PM_MESSAGE);
if (get_scsi_drive_encryption_status(-1, argv[0], encryption_status, 0)) {
fprintf(stdout, "%s", encryption_status);
free_pool_memory(encryption_status);
} else {
retval = 1;
free_pool_memory(encryption_status);
goto bail_out;
}
}
/*
* Load a new encryption key onto the given drive.
*/
if (set_encryption) {
/*
* Read the key bits from the keyfile.
* - == stdin
*/
if (bstrcmp(keyfile, "-")) {
kfd = 0;
fprintf(stdout, _("Enter Encryption Key (close with ^D): "));
fflush(stdout);
} else {
kfd = open(keyfile, O_RDONLY);
if (kfd < 0) {
fprintf(stderr, _("Cannot open keyfile %s\n"), keyfile);
retval = 1;
goto bail_out;
}
}
read(kfd, keydata, sizeof(keydata));
if (kfd > 0) {
close(kfd);
}
strip_trailing_junk(keydata);
if (set_scsi_encryption_key(-1, argv[0], keydata)) {
goto bail_out;
} else {
retval = 1;
goto bail_out;
}
}
/*
* Get the volume encryption status of volume currently loaded in the given drive.
*/
if (volume_encryption_status) {
POOLMEM *encryption_status = get_pool_memory(PM_MESSAGE);
if (get_scsi_volume_encryption_status(-1, argv[0], encryption_status, 0)) {
fprintf(stdout, "%s", encryption_status);
free_pool_memory(encryption_status);
} else {
retval = 1;
free_pool_memory(encryption_status);
goto bail_out;
}
}
bail_out:
if (cache_file) {
free(cache_file);
}
if (keyfile) {
free(keyfile);
}
if (wrap_keyfile) {
free(wrap_keyfile);
}
exit(retval);
}