gpg: First working support for keyboxes.

* g10/getkey.c (get_pubkey_fast): Improve the assertion.
* kbx/keybox.h: Include iobuf.h.
* kbx/keybox-blob.c (keyboxblob_uid): Add field OFF.
(KEYBOX_WITH_OPENPGP): Remove use of this macro.
(pgp_create_key_part_single): New.
(pgp_temp_store_kid): Change to use the keybox-openpgp parser.
(pgp_create_key_part): Ditto.
(pgp_create_uid_part): Ditto.
(pgp_create_sig_part): Ditto.
(pgp_create_blob_keyblock): Ditto.
(_keybox_create_openpgp_blob): Ditto.
* kbx/keybox-search.c (keybox_get_keyblock): New.
* kbx/keybox-update.c (keybox_insert_keyblock): New.
* g10/keydb.c (parse_keyblock_image):
(keydb_get_keyblock): Support keybox.
(build_keyblock_image): New.
(keydb_insert_keyblock): Support keybox.

* kbx/kbxutil.c (import_openpgp, main): Add option --dry-run and print
a kbx file to stdout.

* kbx/keybox-file.c (_keybox_read_blob2): Allow keyblocks up to 10^6
bytes.
--

Import and key listing does now work with the keybox format.  It is
still quite slow and signature caching is completely missing.

Increasing the maximum allowed length for a keyblock was required due
to a 700k keyblock which inhibited kbxutil to list the file.
kbxutil's option name --import-openpgp is not quite appropriate
because it only creates KBX blobs from OpenPGP data.

1 files changed, 35 insertions, 1 deletions

diff --git a/kbx/keybox-search.c b/kbx/keybox-search.c
index ef5cd953e..1e36be968 100644
--- a/kbx/keybox-search.c
+++ b/kbx/keybox-search.c
@@ -1,5 +1,5 @@
 /* keybox-search.c - Search operations
- * Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ * Copyright (C) 2001, 2002, 2003, 2004, 2012 Free Software Foundation, Inc.
  *
  * This file is part of GnuPG.
  *
@@ -958,6 +958,40 @@ keybox_search (KEYBOX_HANDLE hd, KEYBOX_SEARCH_DESC *desc, size_t ndesc)
    Functions to return a certificate or a keyblock.  To be used after
    a successful search operation.
 */
+
+
+/* Return the last found keyblock.  Returns 0 on success and stores a
+   new iobuf at R_IOBUF in that case.  */
+gpg_error_t
+keybox_get_keyblock (KEYBOX_HANDLE hd, iobuf_t *r_iobuf)
+{
+  const unsigned char *buffer;
+  size_t length;
+  size_t image_off, image_len;
+
+  *r_iobuf = NULL;
+
+  if (!hd)
+    return gpg_error (GPG_ERR_INV_VALUE);
+  if (!hd->found.blob)
+    return gpg_error (GPG_ERR_NOTHING_FOUND);
+
+  if (blob_get_type (hd->found.blob) != BLOBTYPE_PGP)
+    return gpg_error (GPG_ERR_WRONG_BLOB_TYPE);
+
+  buffer = _keybox_get_blob_image (hd->found.blob, &length);
+  if (length < 40)
+    return gpg_error (GPG_ERR_TOO_SHORT);
+  image_off = get32 (buffer+8);
+  image_len = get32 (buffer+12);
+  if (image_off+image_len > length)
+    return gpg_error (GPG_ERR_TOO_SHORT);
+
+  *r_iobuf = iobuf_temp_with_content (buffer+image_off, image_len);
+  return 0;
+}
+
+
 #ifdef KEYBOX_WITH_X509
 /*
   Return the last found cert.  Caller must free it.