/*
* Copyright (c) 2024 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 "kpi_interface.h"
#include <stddef.h>
#include <net/dlil.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/domain.h>
#include <sys/user.h>
#include <kern/assert.h>
#include <kern/task.h>
#include <kern/thread.h>
#include <kern/sched_prim.h>
#include <kern/locks.h>
#include <kern/zalloc.h>
struct net_thread_marks { };
static const struct net_thread_marks net_thread_marks_base = { };
__private_extern__ const net_thread_marks_t net_thread_marks_none =
&net_thread_marks_base;
__private_extern__ net_thread_marks_t
net_thread_marks_push(u_int32_t push)
{
static const char *__unsafe_indexable const base = (const void*__single)&net_thread_marks_base;
u_int32_t pop = 0;
if (push != 0) {
struct uthread *uth = current_uthread();
pop = push & ~uth->uu_network_marks;
if (pop != 0) {
uth->uu_network_marks |= pop;
}
}
return __unsafe_forge_single(net_thread_marks_t, (base + pop));
}
__private_extern__ net_thread_marks_t
net_thread_unmarks_push(u_int32_t unpush)
{
static const char *__unsafe_indexable const base = (const void*__single)&net_thread_marks_base;
u_int32_t unpop = 0;
if (unpush != 0) {
struct uthread *uth = current_uthread();
unpop = unpush & uth->uu_network_marks;
if (unpop != 0) {
uth->uu_network_marks &= ~unpop;
}
}
return __unsafe_forge_single(net_thread_marks_t, (base + unpop));
}
__private_extern__ void
net_thread_marks_pop(net_thread_marks_t popx)
{
static const char *__unsafe_indexable const base = (const void*__single)&net_thread_marks_base;
const ptrdiff_t pop = (const char *)popx - (const char *)base;
if (pop != 0) {
static const ptrdiff_t ones = (ptrdiff_t)(u_int32_t)~0U;
struct uthread *uth = current_uthread();
VERIFY((pop & ones) == pop);
VERIFY((ptrdiff_t)(uth->uu_network_marks & pop) == pop);
uth->uu_network_marks &= ~pop;
}
}
__private_extern__ void
net_thread_unmarks_pop(net_thread_marks_t unpopx)
{
static const char *__unsafe_indexable const base = (const void*__single)&net_thread_marks_base;
ptrdiff_t unpop = (const char *)unpopx - (const char *)base;
if (unpop != 0) {
static const ptrdiff_t ones = (ptrdiff_t)(u_int32_t)~0U;
struct uthread *uth = current_uthread();
VERIFY((unpop & ones) == unpop);
VERIFY((ptrdiff_t)(uth->uu_network_marks & unpop) == 0);
uth->uu_network_marks |= (u_int32_t)unpop;
}
}
__private_extern__ u_int32_t
net_thread_is_marked(u_int32_t check)
{
if (check != 0) {
struct uthread *uth = current_uthread();
return uth->uu_network_marks & check;
} else {
return 0;
}
}
__private_extern__ u_int32_t
net_thread_is_unmarked(u_int32_t check)
{
if (check != 0) {
struct uthread *uth = current_uthread();
return ~uth->uu_network_marks & check;
} else {
return 0;
}
}