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hmp_change(): don't access DeviceEncrypted's data 

It's not needed. As the device name is already known, we can replace
the duplicated password prompting code by monitor_read_block_device_key().

This overly simplifies hmp_change().

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
master
Luiz Capitulino 2012-08-06 15:49:34 -03:00
parent 8b7f6fbbdc
commit eef5ad1086
1 changed files with 2 additions and 27 deletions
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29
hmp.c
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@ -776,22 +776,6 @@ static void hmp_change_read_arg(Monitor *mon, const char *password,
monitor_read_command(mon, 1);
}
static void cb_hmp_change_bdrv_pwd(Monitor *mon, const char *password,
void *opaque)
{
Error *encryption_err = opaque;
Error *err = NULL;
const char *device;
device = error_get_field(encryption_err, "device");
qmp_block_passwd(device, password, &err);
hmp_handle_error(mon, &err);
error_free(encryption_err);
monitor_read_command(mon, 1);
}
void hmp_change(Monitor *mon, const QDict *qdict)
{
const char *device = qdict_get_str(qdict, "device");
@ -810,17 +794,8 @@ void hmp_change(Monitor *mon, const QDict *qdict)
qmp_change(device, target, !!arg, arg, &err);
if (error_is_type(err, QERR_DEVICE_ENCRYPTED)) {
monitor_printf(mon, "%s (%s) is encrypted.\n",
error_get_field(err, "device"),
error_get_field(err, "filename"));
if (!monitor_get_rs(mon)) {
monitor_printf(mon,
"terminal does not support password prompting\n");
error_free(err);
return;
}
readline_start(monitor_get_rs(mon), "Password: ", 1,
cb_hmp_change_bdrv_pwd, err);
error_free(err);
monitor_read_block_device_key(mon, device, NULL, NULL);
return;
}
hmp_handle_error(mon, &err);