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g10: Add "key-attr" command for --card-edit.

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* g10/card-util.c (key_attr): New explicit command.
(generate_card_keys, card_generate_subkey): Don't ask key attr change.
(card_edit): Add for cmdKEYATTR.

--

GnuPG-bug-id: 3781
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2018-03-30 10:59:10 +09:00
parent 2969271876
commit 820380335a
1 changed files with 52 additions and 53 deletions
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105
g10/card-util.c
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@ -1435,7 +1435,7 @@ ask_card_keyattr (int keyno, const struct key_attr *current)
}
if (algo == 0)
got leave;
goto leave;
key_attr = xmalloc (sizeof (struct key_attr));
@ -1540,13 +1540,57 @@ do_change_keyattr (int keyno, const struct key_attr *key_attr)
}
static void
key_attr (void)
{
struct agent_card_info_s info;
gpg_error_t err;
int keyno;
err = get_info_for_key_operation (&info);
if (err)
{
log_error (_("error getting card info: %s\n"), gpg_strerror (err));
return;
}
if (!(info.is_v2 && info.extcap.aac))
{
log_error (_("This command is not supported by this card\n"));
goto leave;
}
for (keyno = 0; keyno < DIM (info.key_attr); keyno++)
{
struct key_attr *key_attr;
if ((key_attr = ask_card_keyattr (keyno, &info.key_attr[keyno])))
{
err = do_change_keyattr (keyno, key_attr);
xfree (key_attr);
if (err)
{
/* Error: Better read the default key attribute again. */
agent_release_card_info (&info);
if (get_info_for_key_operation (&info))
goto leave;
/* Ask again for this key. */
keyno--;
}
}
}
leave:
agent_release_card_info (&info);
}
static void
generate_card_keys (ctrl_t ctrl)
{
struct agent_card_info_s info;
int forced_chv1;
int want_backup;
int keyno;
if (get_info_for_key_operation (&info))
return;
@ -1594,32 +1638,6 @@ generate_card_keys (ctrl_t ctrl)
tty_printf ("\n");
}
/* If the cards features changeable key attributes, we ask for the
key size. */
if (info.is_v2 && info.extcap.aac)
{
for (keyno = 0; keyno < DIM (info.key_attr); keyno++)
{
struct key_attr *key_attr;
if ((key_attr = ask_card_keyattr (keyno, &info.key_attr[keyno])))
{
gpg_error_t err = do_change_keyattr (keyno, key_attr);
xfree (key_attr);
if (err)
{
/* Error: Better read the default key attribute again. */
agent_release_card_info (&info);
if (get_info_for_key_operation (&info))
goto leave;
/* Ask again for this key. */
keyno--;
}
}
}
/* Note that INFO has not be synced. However we will only use
the serialnumber and thus it won't harm. */
}
if (check_pin_for_key_operation (&info, &forced_chv1))
goto leave;
@ -1678,31 +1696,6 @@ card_generate_subkey (ctrl_t ctrl, kbnode_t pub_keyblock)
goto leave;
}
/* If the cards features changeable key attributes, we ask for the
key size. */
if (info.is_v2 && info.extcap.aac)
{
struct key_attr *key_attr;
ask_again:
if ((key_attr = ask_card_keyattr (keyno-1, &info.key_attr[keyno-1])))
{
err = do_change_keyattr (keyno-1, key_attr);
xfree (key_attr);
if (err)
{
/* Error: Better read the default key attribute again. */
agent_release_card_info (&info);
err = get_info_for_key_operation (&info);
if (err)
goto leave;
goto ask_again;
}
}
/* Note that INFO has not be synced. However we will only use
the serialnumber and thus it won't harm. */
}
err = check_pin_for_key_operation (&info, &forced_chv1);
if (err)
goto leave;
@ -2091,6 +2084,7 @@ enum cmdids
cmdNAME, cmdURL, cmdFETCH, cmdLOGIN, cmdLANG, cmdSEX, cmdCAFPR,
cmdFORCESIG, cmdGENERATE, cmdPASSWD, cmdPRIVATEDO, cmdWRITECERT,
cmdREADCERT, cmdUNBLOCK, cmdFACTORYRESET, cmdKDFSETUP,
cmdKEYATTR,
cmdINVCMD
};
@ -2124,6 +2118,7 @@ static struct
{ "unblock" , cmdUNBLOCK,0, N_("unblock the PIN using a Reset Code") },
{ "factory-reset", cmdFACTORYRESET, 1, N_("destroy all keys and data")},
{ "kdf-setup", cmdKDFSETUP, 1, N_("setup KDF for PIN authentication")},
{ "key-attr", cmdKEYATTR, 1, N_("change the key attribute")},
/* Note, that we do not announce these command yet. */
{ "privatedo", cmdPRIVATEDO, 0, NULL },
{ "readcert", cmdREADCERT, 0, NULL },
@ -2411,6 +2406,10 @@ card_edit (ctrl_t ctrl, strlist_t commands)
kdf_setup ();
break;
case cmdKEYATTR:
key_attr ();
break;
case cmdQUIT:
goto leave;