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card: Run factory-reset in locked stated also in gpg-card.

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* tools/card-call-scd.c (scd_apdu): Add more pseudo APDUs.
* tools/card-misc.c (send_apdu): Handle them.
* tools/gpg-card.c (cmd_factoryreset): Use lock commands.
--

This is port of the code used with gpg-card-edit.  Note that the
command "apdu" now also understands some extra keywords.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-11-09 14:46:35 +01:00
parent 8fb0d5e3c7
commit 12fd10791f
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
4 changed files with 57 additions and 12 deletions
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5
g10/call-agent.c
View File

@ -974,8 +974,9 @@ agent_scd_keypairinfo (ctrl_t ctrl, const char *keyref, keypair_info_t *r_list)
/* Send an APDU to the current card. On success the status word is
* stored at R_SW. With HEXAPDU being NULL only a RESET command is
* send to scd. HEXAPDU may also be one of these special strings:
* stored at R_SW unless R_SQ is NULL. With HEXAPDU being NULL only a
* RESET command is send to scd. HEXAPDU may also be one of theseo
* special strings:
*
* "undefined" :: Send the command "SCD SERIALNO undefined"
* "lock" :: Send the command "SCD LOCK --wait"

33
tools/card-call-scd.c
View File

@ -421,9 +421,16 @@ store_serialno (const char *line)
/* Send an APDU to the current card. On success the status word is
* stored at R_SW inless R_SW is NULL. With HEXAPDU being NULL only a
* RESET command is send to scd. With HEXAPDU being the string
* "undefined" the command "SERIALNO undefined" is send to scd. If
* R_DATA is not NULL the data without the status code is stored
* RESET command is send to scd. HEXAPDU may also be one of theseo
* special strings:
*
* "undefined" :: Send the command "SCD SERIALNO undefined"
* "lock" :: Send the command "SCD LOCK --wait"
* "trylock" :: Send the command "SCD LOCK"
* "unlock" :: Send the command "SCD UNLOCK"
* "reset-keep-lock" :: Send the command "SCD RESET --keep-lock"
*
* If R_DATA is not NULL the data without the status code is stored
* there. Caller must release it. If OPTIONS is not NULL, this will
* be passed verbatim to the SCDaemon's APDU command. */
gpg_error_t
@ -447,6 +454,26 @@ scd_apdu (const char *hexapdu, const char *options, unsigned int *r_sw,
NULL, NULL, NULL, NULL, NULL, NULL);
}
else if (!strcmp (hexapdu, "reset-keep-lock"))
{
err = assuan_transact (agent_ctx, "SCD RESET --keep-lock",
NULL, NULL, NULL, NULL, NULL, NULL);
}
else if (!strcmp (hexapdu, "lock"))
{
err = assuan_transact (agent_ctx, "SCD LOCK --wait",
NULL, NULL, NULL, NULL, NULL, NULL);
}
else if (!strcmp (hexapdu, "trylock"))
{
err = assuan_transact (agent_ctx, "SCD LOCK",
NULL, NULL, NULL, NULL, NULL, NULL);
}
else if (!strcmp (hexapdu, "unlock"))
{
err = assuan_transact (agent_ctx, "SCD UNLOCK",
NULL, NULL, NULL, NULL, NULL, NULL);
}
else if (!strcmp (hexapdu, "undefined"))
{
err = assuan_transact (agent_ctx, "SCD SERIALNO undefined",

9
tools/card-misc.c
View File

@ -92,8 +92,13 @@ send_apdu (const char *hexapdu, const char *desc, unsigned int ignore,
if (err)
log_error ("sending card command %s failed: %s\n", desc,
gpg_strerror (err));
else if (!hexapdu || !strcmp (hexapdu, "undefined"))
;
else if (!hexapdu
|| !strcmp (hexapdu, "undefined")
|| !strcmp (hexapdu, "reset-keep-lock")
|| !strcmp (hexapdu, "lock")
|| !strcmp (hexapdu, "trylock")
|| !strcmp (hexapdu, "unlock"))
; /* Ignore pseudo APDUs. */
else if (ignore == 0xffff)
; /* Ignore all status words. */
else if (sw != 0x9000)

20
tools/gpg-card.c
View File

@ -2922,6 +2922,7 @@ cmd_factoryreset (card_info_t info)
int termstate = 0;
int any_apdu = 0;
int is_yubikey = 0;
int locked = 0;
int i;
@ -3026,7 +3027,7 @@ cmd_factoryreset (card_info_t info)
if (is_yubikey)
{
/* The PIV application si already selected, we only need to
/* If the PIV application is already selected, we only need to
* send the special reset APDU after having blocked PIN and
* PUK. Note that blocking the PUK is done using the
* unblock PIN command. */
@ -3044,9 +3045,15 @@ cmd_factoryreset (card_info_t info)
else /* OpenPGP card. */
{
any_apdu = 1;
/* We need to select a card application before we can send APDUs
* to the card without scdaemon doing anything on its own. */
err = send_apdu (NULL, "RESET", 0, NULL, NULL);
/* We need to select a card application before we can send
* APDUs to the card without scdaemon doing anything on its
* own. We then lock the connection so that other tools
* (e.g. Kleopatra) don't try a new select. */
err = send_apdu ("lock", "locking connection ", 0, NULL, NULL);
if (err)
goto leave;
locked = 1;
err = send_apdu ("reset-keep-lock", "reset", 0, NULL, NULL);
if (err)
goto leave;
err = send_apdu ("undefined", "dummy select ", 0, NULL, NULL);
@ -3095,6 +3102,9 @@ cmd_factoryreset (card_info_t info)
}
/* Finally we reset the card reader once more. */
if (locked)
err = send_apdu ("reset-keep-lock", "reset", 0, NULL, NULL);
else
err = send_apdu (NULL, "RESET", 0, NULL, NULL);
if (err)
goto leave;
@ -3123,6 +3133,8 @@ cmd_factoryreset (card_info_t info)
* scd serialno openpgp
*/
}
if (locked)
send_apdu ("unlock", "unlocking connection ", 0, NULL, NULL);
xfree (answer);
return err;
}