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gpg: Take care to use pubring.kbx if it has ever been used.

Browse source 
* kbx/keybox-defs.h (struct keybox_handle): Add field for_openpgp.
* kbx/keybox-file.c (_keybox_write_header_blob): Set openpgp header
flag.
* kbx/keybox-blob.c (_keybox_update_header_blob): Add arg for_openpgp
and set header flag.
* kbx/keybox-init.c (keybox_new): Rename to do_keybox_new, make static
and add arg for_openpgp.
(keybox_new_openpgp, keybox_new_x509): New.  Use them instead of the
former keybox_new.
* kbx/keybox-update.c (blob_filecopy): Add arg for_openpgp and set the
openpgp header flags.

* g10/keydb.c (rt_from_file): New.  Factored out and extended from
keydb_add_resource.
(keydb_add_resource): Switch to the kbx file if it has the openpgp
flag set.

* kbx/keybox-dump.c (dump_header_blob): Print header flags.
--

The problem was reported by dkg on gnupg-devel (2014-10-07):

  I just discovered a new problem, though, which will affect people on
  systems that have gpg and gpg2 coinstalled:

   0) create a new keyring with gpg2, and use it exclusively with gpg2
  for a while.
   1) somehow (accidentally?) use gpg (1.4.x) again -- this creates
  ~/.gnupg/pubring.gpg
   2) future runs of gpg2 now only look at pubring.gpg and ignore
  pubring.kbx -- the keys you had accumulated in the keybox are no
  longer listed in the output of gpg2 --list-keys

Note that gpgsm has always used pubring.kbx and thus this file might
already be there but without gpg ever inserted a key.  The new flag in
the KBX header gives us an indication whether a KBX file has ever been
written by gpg >= 2.1.  If that is the case we will use it instead of
the default pubring.gpg.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2014-10-09 19:10:32 +02:00
parent d8c01d826f
commit ec332d58ef
9 changed files with 153 additions and 49 deletions
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19
kbx/keybox-dump.c
View file

@ -141,6 +141,25 @@ dump_header_blob (const byte *buffer, size_t length, FILE *fp)
return -1;
}
fprintf (fp, "Version: %d\n", buffer[5]);
n = get16 (buffer + 6);
fprintf( fp, "Flags: %04lX", n);
if (n)
{
int any = 0;
fputs (" (", fp);
if ((n & 2))
{
if (any)
putc (',', fp);
fputs ("openpgp", fp);
any++;
}
putc (')', fp);
}
putc ('\n', fp);
if ( memcmp (buffer+8, "KBXf", 4))
fprintf (fp, "[Error: invalid magic number]\n");