319 lines
14 KiB
C
319 lines
14 KiB
C
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/*
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* Copyright (c) 2017-2023 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef _NET_IF_PORT_USED_H_
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#define _NET_IF_PORT_USED_H_
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#ifdef PRIVATE
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#include <sys/types.h>
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#include <stdint.h>
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#include <sys/proc.h>
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#include <sys/queue.h>
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#include <sys/_types/_timeval32.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <uuid/uuid.h>
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#include <stdbool.h>
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#define IP_PORTRANGE_SIZE 65536
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/*
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* The sysctl "net.link.generic.system.port_used.list" returns:
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* - one "struct xnpigen" as a preamble
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* - zero or more "struct net_port_info" according to xng_npi_count
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*
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* The list may contain information several interfaces if several drivers
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* queried the list of port to offload
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*
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* The same local port may have more than one "struct net_port_info" on
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* a given interface, for example when a local server has mutiple clients
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* connections
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*/
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struct xnpigen {
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uint32_t xng_len; /* length of this data structure */
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uint32_t xng_gen; /* how many times the list was built */
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uint32_t xng_npi_count; /* number of net_port_info following */
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uint32_t xng_npi_size; /* number of struct net_port_info */
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uuid_t xng_wakeuuid; /* WakeUUID when list was built */
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};
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union in_addr_4_6 {
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struct in_addr _in_a_4;
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struct in6_addr _in_a_6;
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};
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#define NPIF_IPV4 0x0001
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#define NPIF_IPV6 0x0002
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#define NPIF_TCP 0x0004
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#define NPIF_UDP 0x0008
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#define NPIF_DELEGATED 0x0010
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#define NPIF_SOCKET 0x0020
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#define NPIF_CHANNEL 0x0040
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#define NPIF_LISTEN 0x0080
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#define NPIF_WAKEPKT 0x0100
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#define NPIF_NOWAKE 0x0200 /* flow marked with SO_NOWAKEFROMSLEEP are normally excluded */
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#define NPIF_FRAG 0x0400 /* packet is pure fragment (i.e. no src and dst port) */
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#define NPIF_ESP 0x0800 /* for logging only */
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#define NPIF_COMPLINK 0x1000 /* interface is companion link */
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#define NPI_HAS_EFFECTIVE_UUID 1
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struct net_port_info {
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uint16_t npi_if_index;
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uint16_t npi_flags; /* NPIF_xxx */
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struct timeval32 npi_timestamp; /* when passed to driver */
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uuid_t npi_flow_uuid;
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in_port_t npi_local_port; /* network byte order */
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in_port_t npi_foreign_port; /* network byte order */
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union in_addr_4_6 npi_local_addr_;
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union in_addr_4_6 npi_foreign_addr_;
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pid_t npi_owner_pid;
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pid_t npi_effective_pid;
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char npi_owner_pname[MAXCOMLEN + 1];
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char npi_effective_pname[MAXCOMLEN + 1];
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uuid_t npi_owner_uuid;
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uuid_t npi_effective_uuid;
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};
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#define npi_local_addr_in npi_local_addr_._in_a_4
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#define npi_foreign_addr_in npi_foreign_addr_._in_a_4
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#define npi_local_addr_in6 npi_local_addr_._in_a_6
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#define npi_foreign_addr_in6 npi_foreign_addr_._in_a_6
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#define NPI_HAS_WAKE_EVENT_TUPLE 1
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#define NPI_HAS_PACKET_INFO 1
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#define NPI_HAS_PHYSICAL_LINK 1 /* npi_if_info and phy_if fields are present */
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/*
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* struct npi_if_info provides detailed information about the kind of interface
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*
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* See <net/if_private.h> for definitions of possible values of each field
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*
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* Note: the IFRTYPE_xxx values are the same as the IFNET_xxx used inside the kernel
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*/
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struct npi_if_info {
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uint32_t npi_if_family; /* IFRTYPE_FAMILY_xxx */
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uint32_t npi_if_subfamily; /* IFRTYPE_SUBFAMILY_xxx */
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uint32_t npi_if_functional_type; /* IFRTYPE_FUNCTIONAL_xxx */
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};
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#define NPI_IF_INFO_IS_ETHERNET(_npi) \
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((_npi)->npi_if_family == IFRTYPE_FAMILY_ETHERNET)
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#define NPI_IF_INFO_IS_ETHERNET_WIRED(_npi) \
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(NPI_IF_INFO_IS_ETHERNET(_npi) && \
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(_npi)->npi_if_subfamily != IFRTYPE_SUBFAMILY_WIFI)
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#define NPI_IF_INFO_IS_WIFI(_npi) \
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(NPI_IF_INFO_IS_ETHERNET(_npi) && \
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(_npi)->npi_if_subfamily == IFRTYPE_SUBFAMILY_WIFI)
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#define NPI_IF_INFO_IS_CELLULAR(_npi) \
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((_npi)->npi_if_family == IFRTYPE_FAMILY_CELLULAR)
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#define NPI_IF_INFO_IS_IPSEC(_npi) \
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((_npi)->npi_if_family == IFRTYPE_FAMILY_IPSEC)
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#define NPI_IF_INFO_IS_IPSEC_COMPANIONLINK(_npi) \
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((_npi)->npi_if_family == IFRTYPE_FAMILY_IPSEC && \
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(_npi)->npi_if_functional_type == IFRTYPE_FUNCTIONAL_COMPANIONLINK)
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#define NPI_IF_INFO_IS_IPSEC_COMPANIONLINK_BLUETOOTH(_npi) \
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(NPI_IF_INFO_IS_IPSEC_COMPANIONLINK(_npi) && \
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(_npi)->npi_if_subfamily == IFRTYPE_SUBFAMILY_BLUETOOTH)
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#define NPI_IF_INFO_IS_IPSEC_COMPANIONLINK_WIFI(_npi) \
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(NPI_IF_INFO_IS_IPSEC_COMPANIONLINK(_npi) && \
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(_npi)->npi_if_subfamily == IFRTYPE_SUBFAMILY_WIFI)
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#define NPI_IF_INFO_IS_IPSEC_COMPANIONLINK_QUICKRELAY(_npi) \
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(NPI_IF_INFO_IS_IPSEC_COMPANIONLINK(_npi) && \
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(_npi)->npi_if_subfamily == IFRTYPE_SUBFAMILY_QUICKRELAY)
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#define NPI_IF_INFO_IS_UTUN(_npi) \
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((_npi)->npi_if_family == IFRTYPE_FAMILY_UTUN)
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/*
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* Symbolic names for bits of wake_pkt_control_flags and una_wake_pkt_control_flags
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* When the protocol is TCP (flag NPIF_TCP set) the lower 8 bits correspond to the TCP header flag
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*/
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#define NPICF_TH_FIN 0x01
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#define NPICF_TH_SYN 0x02
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#define NPICF_TH_RST 0x04
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#define NPICF_TH_PUSH 0x08
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#define NPICF_TH_ACK 0x10
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#define NPICF_TH_URG 0x20
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#define NPICF_TH_ECE 0x40
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#define NPICF_TH_CWR 0x80
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#define NPICF_NOWAKE 0x1000
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/*
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* struct net_port_info_una_wake_event is the event data for KEV_POWER_WAKE_PACKE
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*
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* See <net/if_private.h> for definiton of values of these kinds of fields:
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* - xxx_if_family IFRTYPE_FAMILY_YYY
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* - xxx_if_subfamily IFRTYPE_SUBFAMILY_YYY
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* - xxx_if_functional_type IFRTYPE_FUNCTIONAL_YYY
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*/
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struct net_port_info_wake_event {
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uuid_t wake_uuid;
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struct timeval32 wake_pkt_timestamp; /* when processed by networking stack */
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uint16_t wake_pkt_if_index; /* interface of incoming wake packet */
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in_port_t wake_pkt_port; /* local port in network byte order */
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uint16_t wake_pkt_flags; /* NPIF_xxx */
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pid_t wake_pkt_owner_pid;
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pid_t wake_pkt_effective_pid;
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char wake_pkt_owner_pname[MAXCOMLEN + 1];
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char wake_pkt_effective_pname[MAXCOMLEN + 1];
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uuid_t wake_pkt_owner_uuid;
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uuid_t wake_pkt_effective_uuid;
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in_port_t wake_pkt_foreign_port; /* network byte order */
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union in_addr_4_6 wake_pkt_local_addr_;
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union in_addr_4_6 wake_pkt_foreign_addr_;
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char wake_pkt_ifname[IFNAMSIZ]; /* name + unit */
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/* Following fields added with NPI_HAS_PACKET_INFO */
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uint32_t wake_pkt_total_len; /* actual length of packet */
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uint32_t wake_pkt_data_len; /* exclude transport (TCP/UDP) header length */
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uint16_t wake_pkt_control_flags; /* see NPICF_xxx above */
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/* Followings fields added with NPI_HAS_PHYSICAL_LINK */
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struct npi_if_info wake_pkt_if_info; /* inner-most interface of TCP/UDP packet */
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char wake_pkt_phy_ifname[IFNAMSIZ]; /* name + unit */
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struct npi_if_info wake_pkt_phy_if_info; /* outer-most interface of wake packet */
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};
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/*
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* struct net_port_info_una_wake_event is the event data for KEV_POWER_UNATTRIBUTED_WAKE
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*
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* una_wake_pkt_proto is useful to track unexpected wake packets when NPIF_IPV4 or
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* NPIF_IPV6 is set this is the IP protocol -- see IPPROTO_x from netinet/in.h.
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* When NPIF_IPV4 and NPIF_IPV6 are not set the cotent of una_wake_pkt can give clues
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* on the type of unexpected wake packet
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*/
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#define NPI_MAX_UNA_WAKE_PKT_LEN 102
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struct net_port_info_una_wake_event {
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uuid_t una_wake_uuid;
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struct timeval32 una_wake_pkt_timestamp; /* when processed by networking stack */
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uint16_t una_wake_pkt_if_index; /* interface of incoming wake packet */
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uint16_t una_wake_pkt_flags; /* NPIF_xxx */
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uint16_t _una_wake_pkt_reserved; /* not used */
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uint16_t una_wake_ptk_len; /* length of una_wake_pkt */
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uint8_t una_wake_pkt[NPI_MAX_UNA_WAKE_PKT_LEN]; /* initial portion of the IPv4/IPv6 packet */
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in_port_t una_wake_pkt_local_port; /* network byte order */
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in_port_t una_wake_pkt_foreign_port; /* network byte order */
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union in_addr_4_6 una_wake_pkt_local_addr_;
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union in_addr_4_6 una_wake_pkt_foreign_addr_;
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char una_wake_pkt_ifname[IFNAMSIZ]; /* name + unit */
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/* Following fields added with NPI_HAS_PACKET_INFO */
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uint32_t una_wake_pkt_total_len; /* actual length of packet */
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uint32_t una_wake_pkt_data_len; /* exclude transport (TCP/UDP) header length */
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uint16_t una_wake_pkt_control_flags; /* see NPICF_xxx above */
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uint16_t una_wake_pkt_proto; /* IPv4 or IPv6 protocol */
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/* Followings fields added with NPI_HAS_PHYSICAL_LINK */
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struct npi_if_info una_wake_pkt_if_info; /* inner-most interface for TCP/UDP tuple */
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char una_wake_pkt_phy_ifname[IFNAMSIZ]; /* name + unit */
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struct npi_if_info una_wake_pkt_phy_if_info; /* outer-most interface of wake packet */
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};
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#define IFPU_HAS_MATCH_WAKE_PKT_NO_FLAG 1 /* ifpu_match_wake_pkt_no_flag is defined */
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#define IF_PORTS_USED_STATS_LIST \
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X(uint64_t, ifpu_wakeuid_gen, "wakeuuid generation%s", "", "s") \
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X(uint64_t, ifpu_wakeuuid_not_set_count, "offload port list quer%s with wakeuuid not set", "y", "ies") \
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X(uint64_t, ifpu_npe_total, "total offload port entr%s created since boot", "y", "ies") \
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X(uint64_t, ifpu_npe_count, "current offload port entr%s", "y", "ies") \
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X(uint64_t, ifpu_npe_max, "max offload port entr%s", "y", "ies") \
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X(uint64_t, ifpu_npe_dup, "duplicate offload port entr%s", "y", "ies") \
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X(uint64_t, ifpu_npi_hash_search_total, "total table entry search%s", "", "es") \
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X(uint64_t, ifpu_npi_hash_search_max, "max hash table entry search%s", "", "es") \
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X(uint64_t, ifpu_so_match_wake_pkt, "match so wake packet call%s", "", "s") \
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X(uint64_t, ifpu_ch_match_wake_pkt, "match ch wake packet call%s", "", "s") \
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X(uint64_t, ifpu_ipv4_wake_pkt, "IPv4 wake packet%s", "", "s") \
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X(uint64_t, ifpu_ipv6_wake_pkt, "IPv6 wake packet%s", "", "s") \
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X(uint64_t, ifpu_tcp_wake_pkt, "TCP wake packet%s", "", "s") \
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X(uint64_t, ifpu_udp_wake_pkt, "UDP wake packet%s", "", "s") \
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X(uint64_t, ifpu_isakmp_natt_wake_pkt, "ISAKMP NAT traversal wake packet%s", "", "s") \
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X(uint64_t, ifpu_esp_wake_pkt, "ESP wake packet%s", "", "s") \
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X(uint64_t, ifpu_bad_proto_wake_pkt, "bad protocol wake packet%s", "", "s") \
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X(uint64_t, ifpu_bad_family_wake_pkt, "bad family wake packet%s", "", "s") \
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X(uint64_t, ifpu_wake_pkt_event, "wake packet event%s", "", "s") \
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X(uint64_t, ifpu_dup_wake_pkt_event, "duplicate wake packet event%s in same wake cycle", "", "s") \
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X(uint64_t, ifpu_wake_pkt_event_error, "wake packet event%s undelivered", "", "s") \
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X(uint64_t, ifpu_unattributed_wake_event, "unattributed wake packet event%s", "", "s") \
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X(uint64_t, ifpu_dup_unattributed_wake_event, "duplicate unattributed wake packet event%s in same wake cycle", "", "s") \
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X(uint64_t, ifpu_unattributed_wake_event_error, "unattributed wake packet event%s undelivered", "", "s") \
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X(uint64_t, ifpu_unattributed_null_recvif, "unattributed wake packet%s received with null interface", "", "s") \
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X(uint64_t, ifpu_match_wake_pkt_no_flag, "bad packet%s without wake flag", "", "s") \
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X(uint64_t, ifpu_frag_wake_pkt, "pure fragment wake packet%s", "", "s") \
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X(uint64_t, ifpu_incomplete_tcp_hdr_pkt, "packet%s with incomplete TCP header", "", "s") \
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|
|
X(uint64_t, ifpu_incomplete_udp_hdr_pkt, "packet%s with incomplete UDP header", "", "s") \
|
||
|
|
X(uint64_t, ifpu_npi_not_added_no_wakeuuid, "port entr%s not added with wakeuuid not set", "y", "ies") \
|
||
|
|
X(uint64_t, ifpu_deferred_isakmp_natt_wake_pkt, "deferred matching of ISAKMP NAT traversal wake packet%s", "", "s") \
|
||
|
|
X(uint64_t, ifpu_spurious_wake_event, "spurious wake packet event%s", "", "s")
|
||
|
|
|
||
|
|
struct if_ports_used_stats {
|
||
|
|
#define X(_type, _field, ...) _type _field;
|
||
|
|
IF_PORTS_USED_STATS_LIST
|
||
|
|
#undef X
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef XNU_KERNEL_PRIVATE
|
||
|
|
|
||
|
|
extern int if_ports_used_verbose;
|
||
|
|
|
||
|
|
void if_ports_used_init(void);
|
||
|
|
|
||
|
|
void if_ports_used_update_wakeuuid(struct ifnet *);
|
||
|
|
|
||
|
|
struct inpcb;
|
||
|
|
bool if_ports_used_add_inpcb(const uint32_t ifindex, const struct inpcb *inp);
|
||
|
|
|
||
|
|
#if SKYWALK
|
||
|
|
struct ns_flow_info;
|
||
|
|
struct flow_entry;
|
||
|
|
bool if_ports_used_add_flow_entry(const struct flow_entry *fe, const uint32_t ifindex,
|
||
|
|
const struct ns_flow_info *nfi, uint32_t ns_flags);
|
||
|
|
void if_ports_used_match_pkt(struct ifnet *ifp, struct __kern_packet *pkt);
|
||
|
|
#endif /* SKYWALK */
|
||
|
|
|
||
|
|
void if_ports_used_match_mbuf(struct ifnet *ifp, protocol_family_t proto_family,
|
||
|
|
struct mbuf *m);
|
||
|
|
|
||
|
|
#endif /* XNU_KERNEL_PRIVATE */
|
||
|
|
#endif /* PRIVATE */
|
||
|
|
|
||
|
|
#endif /* _NET_IF_PORT_USED_H_ */
|