/*
* Copyright (c) 2022 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <skywalk/os_skywalk_private.h>
#include <IOKit/IOBSD.h>
static int
nxioctl_check_entitlement(u_long cmd)
{
boolean_t entitled = FALSE;
if (kauth_cred_issuser(kauth_cred_get())) {
return 0;
}
switch (cmd) {
case NXIOC_ADD_TRAFFIC_RULE_INET:
case NXIOC_REMOVE_TRAFFIC_RULE:
entitled = IOCurrentTaskHasEntitlement(
NXCTL_TRAFFIC_RULE_WRITE_ENTITLEMENT);
break;
case NXIOC_GET_TRAFFIC_RULES:
entitled = IOCurrentTaskHasEntitlement(
NXCTL_TRAFFIC_RULE_READ_ENTITLEMENT);
break;
default:
SK_ERR("invalid command %x", cmd);
return ENOTSUP;
}
return entitled ? 0 : EPERM;
}
int
nxioctl(struct nxctl *nxctl, u_long cmd, caddr_t data, proc_t procp)
{
int err;
if ((err = nxioctl_check_entitlement(cmd)) != 0) {
return err;
}
switch (cmd) {
case NXIOC_ADD_TRAFFIC_RULE_INET:
return nxioctl_add_traffic_rule_inet(nxctl, data, procp);
case NXIOC_REMOVE_TRAFFIC_RULE:
return nxioctl_remove_traffic_rule(nxctl, data, procp);
case NXIOC_GET_TRAFFIC_RULES:
return nxioctl_get_traffic_rules(nxctl, data, procp);
default:
SK_ERR("invalid command %x", cmd);
return ENOTSUP;
}
}