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qvm-backup: add options to specify custom hmac/enc algorithms

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This commit is contained in:
Marek Marczykowski-Górecki 2014-01-15 05:34:35 +01:00
parent adbec8e843
commit 8921df90d8
1 changed files with 15 additions and 1 deletions
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16
qvm-tools/qvm-backup
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@ -44,6 +44,14 @@ def main():
help="The AppVM to send backups to (implies -e)") help="The AppVM to send backups to (implies -e)")
parser.add_option ("-e", "--encrypt", action="store_true", dest="encrypt", default=False, parser.add_option ("-e", "--encrypt", action="store_true", dest="encrypt", default=False,
help="Encrypts the backup") help="Encrypts the backup")
parser.add_option ("-E", "--enc-algo", action="store",
dest="crypto_algorithm", default=None,
help="Specify non-default encryption algorithm. For list of supported algos execute 'openssl list-cipher-algorithms'")
parser.add_option ("-H", "--hmac-algo", action="store",
dest="hmac_algorithm", default=None,
help="Specify non-default hmac algorithm. For list of "
"supported algos execute 'openssl "
"list-message-digest-algorithms'")
parser.add_option ("-z", "--compress", action="store_true", dest="compress", default=False, parser.add_option ("-z", "--compress", action="store_true", dest="compress", default=False,
help="Compress the backup") help="Compress the backup")
@ -121,12 +129,18 @@ def main():
print >>sys.stderr, "ERROR: Password mismatch" print >>sys.stderr, "ERROR: Password mismatch"
exit(1) exit(1)
kwargs = {}
if options.hmac_algorithm:
kwargs['hmac_algorithm'] = options.hmac_algorithm
if options.crypto_algorithm:
kwargs['crypto_algorithm'] = options.crypto_algorithm
try: try:
backup_do(base_backup_dir, files_to_backup, passphrase, backup_do(base_backup_dir, files_to_backup, passphrase,
progress_callback=print_progress, progress_callback=print_progress,
encrypted=options.encrypt, encrypted=options.encrypt,
compressed=options.compress, compressed=options.compress,
appvm=appvm) appvm=appvm, **kwargs)
except QubesException as e: except QubesException as e:
print >>sys.stderr, "ERROR: %s" % str(e) print >>sys.stderr, "ERROR: %s" % str(e)
exit(1) exit(1)