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>
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29
hmp.c
29
hmp.c
@ -776,22 +776,6 @@ static void hmp_change_read_arg(Monitor *mon, const char *password,
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monitor_read_command(mon, 1);
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}
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static void cb_hmp_change_bdrv_pwd(Monitor *mon, const char *password,
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void *opaque)
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{
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Error *encryption_err = opaque;
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Error *err = NULL;
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const char *device;
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device = error_get_field(encryption_err, "device");
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qmp_block_passwd(device, password, &err);
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hmp_handle_error(mon, &err);
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error_free(encryption_err);
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monitor_read_command(mon, 1);
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}
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void hmp_change(Monitor *mon, const QDict *qdict)
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{
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const char *device = qdict_get_str(qdict, "device");
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@ -810,17 +794,8 @@ void hmp_change(Monitor *mon, const QDict *qdict)
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qmp_change(device, target, !!arg, arg, &err);
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if (error_is_type(err, QERR_DEVICE_ENCRYPTED)) {
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monitor_printf(mon, "%s (%s) is encrypted.\n",
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error_get_field(err, "device"),
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error_get_field(err, "filename"));
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if (!monitor_get_rs(mon)) {
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monitor_printf(mon,
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"terminal does not support password prompting\n");
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error_free(err);
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return;
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}
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readline_start(monitor_get_rs(mon), "Password: ", 1,
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cb_hmp_change_bdrv_pwd, err);
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error_free(err);
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monitor_read_block_device_key(mon, device, NULL, NULL);
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return;
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}
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hmp_handle_error(mon, &err);
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