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g13: Consider g13tab for a mount command.

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* g13/sh-cmd.c (cmd_getkeyblob): New.
(register_commands): Register it.
* g13/call-syshelp.c (getkeyblob_data_cb): New.
(call_syshelp_get_keyblob): New.
* g13/mount.c: Include callsyshelp.h.
(g13_mount_container): Ask syshelp whether the filename is managed by
g13tab.  Call syshelp to get the encrypted keyblob in this case.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-08-13 19:27:28 +02:00
parent 37e932658c
commit 7009206402
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
4 changed files with 132 additions and 14 deletions
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46
g13/call-syshelp.c
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@ -234,6 +234,52 @@ call_syshelp_find_device (ctrl_t ctrl, const char *name, char **r_blockdev)
}
static gpg_error_t
getkeyblob_data_cb (void *opaque, const void *data, size_t datalen)
{
membuf_t *mb = opaque;
if (data)
put_membuf (mb, data, datalen);
return 0;
}
/* Send the GTEKEYBLOB command to the syshelper. On success the
* encrypted keyblpob is stored at (R_ENCKEYBLOB,R_ENCKEYBLOBLEN). */
gpg_error_t
call_syshelp_get_keyblob (ctrl_t ctrl,
void **r_enckeyblob, size_t *r_enckeybloblen)
{
gpg_error_t err;
assuan_context_t ctx;
membuf_t mb;
*r_enckeyblob = NULL;
*r_enckeybloblen = 0;
init_membuf (&mb, 512);
err = start_syshelp (ctrl, &ctx);
if (err)
goto leave;
err = assuan_transact (ctx, "GETKEYBLOB",
getkeyblob_data_cb, &mb,
NULL, NULL, NULL, NULL);
if (err)
goto leave;
*r_enckeyblob = get_membuf (&mb, r_enckeybloblen);
if (!*r_enckeyblob)
err = gpg_error_from_syserror ();
leave:
xfree (get_membuf (&mb, NULL));
return err;
}
/* Send the DEVICE command to the syshelper. FNAME is the name of the
device. */