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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@ */ /* * Copyright (c) 1982, 1986, 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $ */ /* * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */ #ifndef _NETINET_IN_PCB_H_ #define _NETINET_IN_PCB_H_ #include <sys/appleapiopts.h> #include <netinet/in.h> #include <sys/socketvar.h> #include <sys/types.h> #include <sys/queue.h> #ifdef BSD_KERNEL_PRIVATE #include <sys/bitstring.h> #include <sys/tree.h> #include <kern/locks.h> #include <kern/uipc_domain.h> #include <kern/zalloc.h> #include <netinet/in_stat.h> #include <net/if_ports_used.h> #endif /* BSD_KERNEL_PRIVATE */ #if !KERNEL #include <TargetConditionals.h> #endif #if IPSEC #include <netinet6/ipsec.h> /* for IPSEC */ #endif /* IPSEC */ #if NECP #include <net/necp.h> #endif #if SKYWALK #include <skywalk/namespace/netns.h> #endif /* SKYWALK */ #ifdef BSD_KERNEL_PRIVATE /* * struct inpcb is the common protocol control block structure used in most * IP transport protocols. * * Pointers to local and foreign host table entries, local and foreign socket * numbers, and pointers up (to a socket structure) and down (to a * protocol-specific control block) are stored here. */ LIST_HEAD(inpcbhead, inpcb); LIST_HEAD(inpcbporthead, inpcbport); #endif /* BSD_KERNEL_PRIVATE */ typedef u_quad_t inp_gen_t; /* * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet. * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing * the following structure. */ struct in_addr_4in6 { u_int32_t ia46_pad32[3]; struct in_addr ia46_addr4; }; #ifdef BSD_KERNEL_PRIVATE /* * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS * of the structure. Therefore, it is important that the members in * that position not contain any information which is required to be * stable. */ struct icmp6_filter; struct ifnet; typedef enum { stats_functional_type_untracked = 0, /* Deliberately ignored for detailed stats, e.g. loopback */ stats_functional_type_cell = 1, stats_functional_type_wifi_infra = 2, stats_functional_type_wifi_non_infra = 3, stats_functional_type_wired = 4, stats_functional_type_bluetooth = 5, stats_functional_type_unclassified = 6, /* Catch-all, appearance may need further investigation */ } stats_functional_type; struct inp_necp_attributes { char *inp_domain __null_terminated; char *inp_account __null_terminated; char *inp_domain_owner __null_terminated; char *inp_tracker_domain __null_terminated; char *inp_domain_context __null_terminated; }; /* * struct inpcb captures the network layer state for TCP, UDP and raw IPv6 * and IPv6 sockets. In the case of TCP, further per-connection state is * hung off of inp_ppcb most of the time. */ struct inpcb { decl_lck_mtx_data(, inpcb_mtx); /* inpcb per-socket mutex */ LIST_ENTRY(inpcb) inp_hash; /* hash list */ LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ void *inp_ppcb; /* pointer to per-protocol pcb */ struct inpcbinfo *inp_pcbinfo; /* PCB list info */ struct socket *inp_socket; /* back pointer to socket */ LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */ RB_ENTRY(inpcb) infc_link; /* link for flowhash RB tree */ struct inpcbport *inp_phd; /* head of this list */ inp_gen_t inp_gencnt; /* generation count of this instance */ int inp_hash_element; /* array index of pcb's hash list */ int inp_wantcnt; /* wanted count; atomically updated */ int inp_state; /* state (INUSE/CACHED/DEAD) */ u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ uint32_t inp_flags; /* generic IP/datagram flags */ uint32_t inp_flags2; /* generic IP/datagram flags #2 */ uint32_t inp_log_flags; uint32_t inp_flow; /* IPv6 flow information */ uint32_t inp_lifscope; /* IPv6 scope ID of the local address */ uint32_t inp_fifscope; /* IPv6 scope ID of the foreign address */ uint32_t inp_sndingprog_waiters;/* waiters for outstanding send */ u_char inp_sndinprog_cnt; /* outstanding send operations */ u_char inp_vflag; /* INP_IPV4 or INP_IPV6 */ u_char inp_ip_ttl; /* time to live proto */ u_char inp_ip_p; /* protocol proto */ struct ifnet *inp_boundifp; /* interface for INP_BOUND_IF */ struct ifnet *inp_last_outifp; /* last known outgoing interface */ uint32_t inp_flowhash; /* flow hash */ /* Protocol-dependent part */ union { /* foreign host table entry */ struct in_addr_4in6 inp46_foreign; struct in6_addr inp6_foreign; } inp_dependfaddr; union { /* local host table entry */ struct in_addr_4in6 inp46_local; struct in6_addr inp6_local; } inp_dependladdr; union { /* placeholder for routing entry */ struct route inp4_route; struct route_in6 inp6_route; } inp_dependroute; struct { /* type of service proto */ u_char inp4_ip_tos; /* IP options */ struct mbuf *inp4_options; /* IP multicast options */ struct ip_moptions *inp4_moptions; } inp_depend4; struct { /* IP options */ struct mbuf *inp6_options; /* IP6 options for outgoing packets */ struct ip6_pktopts *inp6_outputopts; /* IP multicast options */ struct ip6_moptions *inp6_moptions; /* ICMPv6 code type filter */ struct icmp6_filter *inp6_icmp6filt; /* IPV6_CHECKSUM setsockopt */ int inp6_cksum; short inp6_hops; } inp_depend6; uint64_t inp_fadv_total_time; uint64_t inp_fadv_start_time; uint64_t inp_fadv_cnt; #if IPSEC struct inpcbpolicy *inp_sp; /* for IPsec */ #endif /* IPSEC */ #if NECP struct inp_necp_attributes inp_necp_attributes; struct necp_inpcb_result inp_policyresult; uuid_t necp_client_uuid; uint32_t inp_bind_in_progress_waiters; thread_t inp_bind_in_progress_last_waiter_thread; thread_t inp_bind_in_progress_thread; necp_client_flow_cb necp_cb; size_t inp_resolver_signature_length; uint8_t *inp_resolver_signature __sized_by(inp_resolver_signature_length); #endif #if SKYWALK netns_token inp_netns_token; /* shared namespace state */ /* optional IPv4 wildcard namespace reservation for an IPv6 socket */ netns_token inp_wildcard_netns_token; #endif /* SKYWALK */ u_char *__sized_by(inp_keepalive_datalen) inp_keepalive_data; /* for keepalive offload */ uint8_t inp_keepalive_datalen; /* keepalive data length */ uint8_t inp_keepalive_type; /* type of application */ uint16_t inp_keepalive_interval; /* keepalive interval */ struct nstat_sock_locus *inp_nstat_locus __attribute__((aligned(sizeof(u_int64_t)))); struct media_stats inp_mstat __attribute__((aligned(8))); /* All counts, total/cell/wifi etc */ uint64_t inp_start_timestamp; uint64_t inp_connect_timestamp; char inp_last_proc_name[MAXCOMLEN + 1]; char inp_e_proc_name[MAXCOMLEN + 1]; uint64_t inp_max_pacing_rate; /* Per-connection maximumg pacing rate to be enforced (Bytes/second) */ }; #define IFNET_COUNT_TYPE(_ifp) \ IFNET_IS_LOOPBACK(_ifp) ? stats_functional_type_untracked: \ IFNET_IS_CELLULAR(_ifp) ? stats_functional_type_cell: \ IFNET_IS_WIFI(_ifp) ? \ IFNET_IS_WIFI_INFRA(_ifp) ? stats_functional_type_wifi_infra: \ stats_functional_type_wifi_non_infra: \ IFNET_IS_WIRED(_ifp) ? stats_functional_type_wired: \ IFNET_IS_COMPANION_LINK_BLUETOOTH(_ifp)? stats_functional_type_bluetooth: stats_functional_type_unclassified; #define INP_ADD_RXSTAT(_inp, _stats_functional_type, _p, _b) \ do { \ locked_add_64(&((_inp)->inp_mstat.ms_total.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_total.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_total.ts_bitmap), net_uptime()); \ switch(_stats_functional_type) { \ case stats_functional_type_cell: \ locked_add_64(&((_inp)->inp_mstat.ms_cellular.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_cellular.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_cellular.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_wifi_infra: \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_infra.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_infra.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_wifi_infra.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_wifi_non_infra: \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_non_infra.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_non_infra.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_wifi_non_infra.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_wired: \ locked_add_64(&((_inp)->inp_mstat.ms_wired.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_wired.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_wired.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_bluetooth: \ locked_add_64(&((_inp)->inp_mstat.ms_bluetooth.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_bluetooth.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_bluetooth.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_unclassified: \ locked_add_64(&((_inp)->inp_mstat.ms_alternate.ts_rxpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_alternate.ts_rxbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_alternate.ts_bitmap), net_uptime()); \ break; \ default: \ break; \ }; \ } while (0); #define INP_ADD_TXSTAT(_inp, _stats_functional_type, _p, _b) \ do { \ locked_add_64(&((_inp)->inp_mstat.ms_total.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_total.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_total.ts_bitmap), net_uptime()); \ switch(_stats_functional_type) { \ case stats_functional_type_cell: \ locked_add_64(&((_inp)->inp_mstat.ms_cellular.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_cellular.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_cellular.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_wifi_infra: \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_infra.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_infra.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_wifi_infra.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_wifi_non_infra: \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_non_infra.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_wifi_non_infra.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_wifi_non_infra.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_wired: \ locked_add_64(&((_inp)->inp_mstat.ms_wired.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_wired.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_wired.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_bluetooth: \ locked_add_64(&((_inp)->inp_mstat.ms_bluetooth.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_bluetooth.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_bluetooth.ts_bitmap), net_uptime()); \ break; \ case stats_functional_type_unclassified: \ locked_add_64(&((_inp)->inp_mstat.ms_alternate.ts_txpackets), (_p)); \ locked_add_64(&((_inp)->inp_mstat.ms_alternate.ts_txbytes), (_b)); \ in_stat_set_activity_bitmap(&((_inp)->inp_mstat.ms_alternate.ts_bitmap), net_uptime()); \ break; \ default: \ break; \ }; \ } while (0); #endif /* BSD_KERNEL_PRIVATE */ /* * Interface exported to userland by various protocols which use * inpcbs. Hack alert -- only define if struct xsocket is in scope. */ #pragma pack(4) #if defined(__LP64__) struct _inpcb_list_entry { u_int32_t le_next; u_int32_t le_prev; }; #define _INPCB_PTR(x) u_int32_t #define _INPCB_LIST_ENTRY(x) struct _inpcb_list_entry #else /* !__LP64__ */ #define _INPCB_PTR(x) x #define _INPCB_LIST_ENTRY(x) LIST_ENTRY(x) #endif /* !__LP64__ */ #ifdef XNU_KERNEL_PRIVATE /* * This is a copy of the inpcb as it shipped in Panther. This structure * is filled out in a copy function. This allows the inpcb to change * without breaking userland tools. * * CAUTION: Many fields may not be filled out. Fewer may be filled out * in the future. Code defensively. */ struct inpcb_compat { #else struct inpcbinfo; struct inpcbport; struct mbuf; struct ip6_pktopts; struct ip6_moptions; struct icmp6_filter; struct inpcbpolicy; struct inpcb { #endif /* KERNEL_PRIVATE */ _INPCB_LIST_ENTRY(inpcb) inp_hash; /* hash list */ struct in_addr reserved1; /* reserved */ struct in_addr reserved2; /* reserved */ u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ _INPCB_LIST_ENTRY(inpcb) inp_list; /* list for all peer PCBs */ _INPCB_PTR(caddr_t) inp_ppcb; /* per-protocol pcb */ _INPCB_PTR(struct inpcbinfo *) inp_pcbinfo; /* PCB list info */ _INPCB_PTR(void *) inp_socket; /* back pointer to socket */ u_char nat_owner; /* Used to NAT TCP/UDP traffic */ u_int32_t nat_cookie; /* Cookie stored and returned to NAT */ _INPCB_LIST_ENTRY(inpcb) inp_portlist; /* this PCB's local port list */ _INPCB_PTR(struct inpcbport *) inp_phd; /* head of this list */ inp_gen_t inp_gencnt; /* generation count of this instance */ int inp_flags; /* generic IP/datagram flags */ u_int32_t inp_flow; u_char inp_vflag; u_char inp_ip_ttl; /* time to live proto */ u_char inp_ip_p; /* protocol proto */ /* protocol dependent part */ union { /* foreign host table entry */ struct in_addr_4in6 inp46_foreign; struct in6_addr inp6_foreign; } inp_dependfaddr; union { /* local host table entry */ struct in_addr_4in6 inp46_local; struct in6_addr inp6_local; } inp_dependladdr; union { /* placeholder for routing entry */ u_char inp4_route[20]; u_char inp6_route[32]; } inp_dependroute; struct { /* type of service proto */ u_char inp4_ip_tos; /* IP options */ _INPCB_PTR(struct mbuf *) inp4_options; /* IP multicast options */ _INPCB_PTR(struct ip_moptions *) inp4_moptions; } inp_depend4; struct { /* IP options */ _INPCB_PTR(struct mbuf *) inp6_options; u_int8_t inp6_hlim; u_int8_t unused_uint8_1; ushort unused_uint16_1; /* IP6 options for outgoing packets */ _INPCB_PTR(struct ip6_pktopts *) inp6_outputopts; /* IP multicast options */ _INPCB_PTR(struct ip6_moptions *) inp6_moptions; /* ICMPv6 code type filter */ _INPCB_PTR(struct icmp6_filter *) inp6_icmp6filt; /* IPV6_CHECKSUM setsockopt */ int inp6_cksum; u_short inp6_ifindex; short inp6_hops; } inp_depend6; int hash_element; /* Array index of pcb's hash list */ _INPCB_PTR(caddr_t) inp_saved_ppcb; /* pointer while cached */ _INPCB_PTR(struct inpcbpolicy *) inp_sp; u_int32_t reserved[3]; /* reserved */ }; struct xinpcb { u_int32_t xi_len; /* length of this structure */ #ifdef XNU_KERNEL_PRIVATE struct inpcb_compat xi_inp; #else struct inpcb xi_inp; #endif struct xsocket xi_socket; u_quad_t xi_alignment_hack; }; #if XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) struct inpcb64_list_entry { u_int64_t le_next; u_int64_t le_prev; }; struct xinpcb64 { u_int64_t xi_len; /* length of this structure */ u_int64_t xi_inpp; u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ struct inpcb64_list_entry inp_list; /* list for all PCBs */ u_int64_t inp_ppcb; /* ptr to per-protocol PCB */ u_int64_t inp_pcbinfo; /* PCB list info */ struct inpcb64_list_entry inp_portlist; /* this PCB's local port list */ u_int64_t inp_phd; /* head of this list */ inp_gen_t inp_gencnt; /* current generation count */ int inp_flags; /* generic IP/datagram flags */ u_int32_t inp_flow; u_char inp_vflag; u_char inp_ip_ttl; /* time to live */ u_char inp_ip_p; /* protocol */ union { /* foreign host table entry */ struct in_addr_4in6 inp46_foreign; struct in6_addr inp6_foreign; } inp_dependfaddr; union { /* local host table entry */ struct in_addr_4in6 inp46_local; struct in6_addr inp6_local; } inp_dependladdr; struct { u_char inp4_ip_tos; /* type of service */ } inp_depend4; struct { u_int8_t inp6_hlim; int inp6_cksum; u_short inp6_ifindex; short inp6_hops; } inp_depend6; struct xsocket64 xi_socket; u_quad_t xi_alignment_hack; }; #endif /* XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */ #ifdef PRIVATE struct xinpcb_list_entry { u_int64_t le_next; u_int64_t le_prev; }; struct xinpcb_n { u_int32_t xi_len; /* length of this structure */ u_int32_t xi_kind; /* XSO_INPCB */ u_int64_t xi_inpp; u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ u_int64_t inp_ppcb; /* pointer to per-protocol pcb */ inp_gen_t inp_gencnt; /* generation count of this instance */ int inp_flags; /* generic IP/datagram flags */ u_int32_t inp_flow; u_char inp_vflag; u_char inp_ip_ttl; /* time to live */ u_char inp_ip_p; /* protocol */ union { /* foreign host table entry */ struct in_addr_4in6 inp46_foreign; struct in6_addr inp6_foreign; } inp_dependfaddr; union { /* local host table entry */ struct in_addr_4in6 inp46_local; struct in6_addr inp6_local; } inp_dependladdr; struct { u_char inp4_ip_tos; /* type of service */ } inp_depend4; struct { u_int8_t inp6_hlim; int inp6_cksum; u_short inp6_ifindex; short inp6_hops; } inp_depend6; u_int32_t inp_flowhash; u_int32_t inp_flags2; }; #endif /* PRIVATE */ struct xinpgen { u_int32_t xig_len; /* length of this structure */ u_int xig_count; /* number of PCBs at this time */ inp_gen_t xig_gen; /* generation count at this time */ so_gen_t xig_sogen; /* current socket generation count */ }; #pragma pack() /* * These defines are for use with the inpcb. */ #define INP_IPV4 0x1 #define INP_IPV6 0x2 #define INP_V4MAPPEDV6 0x4 #define inp_faddr inp_dependfaddr.inp46_foreign.ia46_addr4 #define inp_laddr inp_dependladdr.inp46_local.ia46_addr4 #define in6p_faddr inp_dependfaddr.inp6_foreign #define in6p_laddr inp_dependladdr.inp6_local #ifdef BSD_KERNEL_PRIVATE #define inp_route inp_dependroute.inp4_route #define inp_ip_tos inp_depend4.inp4_ip_tos #define inp_options inp_depend4.inp4_options #define inp_moptions inp_depend4.inp4_moptions #define in6p_route inp_dependroute.inp6_route #define in6p_ip6_hlim inp_depend6.inp6_hlim #define in6p_hops inp_depend6.inp6_hops /* default hop limit */ #define in6p_ip6_nxt inp_ip_p #define in6p_vflag inp_vflag #define in6p_options inp_depend6.inp6_options #define in6p_outputopts inp_depend6.inp6_outputopts #define in6p_moptions inp_depend6.inp6_moptions #define in6p_icmp6filt inp_depend6.inp6_icmp6filt #define in6p_cksum inp_depend6.inp6_cksum #define in6p_ifindex inp_depend6.inp6_ifindex #define in6p_flags inp_flags #define in6p_flags2 inp_flags2 #define in6p_socket inp_socket #define in6p_lport inp_lport #define in6p_fport inp_fport #define in6p_ppcb inp_ppcb #define in6p_state inp_state #define in6p_wantcnt inp_wantcnt #define in6p_last_outifp inp_last_outifp #define in6pcb inpcb #if IPSEC #define in6p_sp inp_sp #endif /* IPSEC */ #define INP_INC_IFNET_STAT(_inp_, _stat_) { \ if ((_inp_)->inp_last_outifp != NULL) { \ if ((_inp_)->inp_vflag & INP_IPV6) { \ (_inp_)->inp_last_outifp->if_ipv6_stat->_stat_++;\ } else { \ (_inp_)->inp_last_outifp->if_ipv4_stat->_stat_++;\ }\ }\ } struct inpcbport { LIST_ENTRY(inpcbport) phd_hash; struct inpcbhead phd_pcblist; u_short phd_port; }; struct intimercount { u_int32_t intimer_lazy; /* lazy requests for timer scheduling */ u_int32_t intimer_fast; /* fast requests, can be coalesced */ u_int32_t intimer_nodelay; /* fast requests, never coalesced */ }; typedef void (*inpcb_timer_func_t)(struct inpcbinfo *); /* * Global data structure for each high-level protocol (UDP, TCP, ...) in both * IPv4 and IPv6. Holds inpcb lists and information for managing them. Each * pcbinfo is protected by a RW lock: ipi_lock. * * All INPCB pcbinfo entries are linked together via ipi_entry. */ struct inpcbinfo { /* * Glue to all PCB infos, as well as garbage collector and * timer callbacks, protected by inpcb_lock. Callout request * counts are atomically updated. */ TAILQ_ENTRY(inpcbinfo) ipi_entry; inpcb_timer_func_t ipi_gc; inpcb_timer_func_t ipi_timer; struct intimercount ipi_gc_req; struct intimercount ipi_timer_req; /* * Per-protocol lock protecting pcb list, pcb count, etc. */ lck_rw_t ipi_lock; /* * List and count of pcbs on the protocol. */ struct inpcbhead *ipi_listhead; uint32_t ipi_count; /* * Count of pcbs marked with INP2_TIMEWAIT flag. */ uint32_t ipi_twcount; /* * Generation count -- incremented each time a connection is * allocated or freed. */ uint64_t ipi_gencnt; /* * Fields associated with port lookup and allocation. */ uint16_t ipi_lastport; uint16_t ipi_lastlow; uint16_t ipi_lasthi; /* * Zone from which inpcbs are allocated for this protocol. */ #if BSD_KERNEL_PRIVATE kalloc_type_view_t ipi_zone; #else struct zone *ipi_zone; #endif /* * Per-protocol hash of pcbs, hashed by local and foreign * addresses and port numbers. */ struct inpcbhead *__counted_by(ipi_hashbase_count) ipi_hashbase; size_t ipi_hashbase_count; u_long ipi_hashmask; /* * Per-protocol hash of pcbs, hashed by only local port number. */ struct inpcbporthead *__counted_by(ipi_porthashbase_count) ipi_porthashbase; size_t ipi_porthashbase_count; u_long ipi_porthashmask; /* * Misc. */ lck_attr_t ipi_lock_attr; lck_grp_t *ipi_lock_grp; #define INPCBINFO_UPDATE_MSS 0x1 #define INPCBINFO_HANDLE_LQM_ABORT 0x2 u_int32_t ipi_flags; }; #define INP_PCBHASH(faddr, lport, fport, mask) \ (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) #define INP_PCBPORTHASH(lport, mask) \ (ntohs((lport)) & (mask)) /* * 4-tuple for an IPv4/IPv6 endpoint */ union in_dependaddr { struct in_addr_4in6 id46_addr; struct in6_addr id6_addr; }; struct in_endpoints { in_port_t ie_fport; in_port_t ie_lport; union in_dependaddr ie_dependfaddr; union in_dependaddr ie_dependladdr; }; #define ie_faddr ie_dependfaddr.id46_addr.ia46_addr4 #define ie_laddr ie_dependladdr.id46_addr.ia46_addr4 #define ie6_faddr ie_dependfaddr.id6_addr #define ie6_laddr ie_dependladdr.id6_addr /* * The following macro need to return a bool value */ #define INP_IS_FLOW_CONTROLLED(_inp_) \ (((_inp_)->inp_flags & INP_FLOW_CONTROLLED) ? true : false) #define INP_IS_FLOW_SUSPENDED(_inp_) \ ((((_inp_)->inp_flags & INP_FLOW_SUSPENDED) || \ ((_inp_)->inp_socket->so_flags & SOF_SUSPENDED)) ? true : false) #define INP_WAIT_FOR_IF_FEEDBACK(_inp_) \ (((_inp_)->inp_flags & (INP_FLOW_CONTROLLED | INP_FLOW_SUSPENDED)) != 0) #define INP_NO_CELLULAR(_inp) \ (((_inp)->inp_flags & INP_NO_IFT_CELLULAR) ? true : false) #define INP_NO_EXPENSIVE(_inp) \ (((_inp)->inp_flags2 & INP2_NO_IFF_EXPENSIVE) ? true : false) #define INP_NO_CONSTRAINED(_inp) \ (((_inp)->inp_flags2 & INP2_NO_IFF_CONSTRAINED) ? true : false) #define INP_AWDL_UNRESTRICTED(_inp) \ (((_inp)->inp_flags2 & INP2_AWDL_UNRESTRICTED) ? true : false) #define INP_INTCOPROC_ALLOWED(_inp) \ (((_inp)->inp_flags2 & INP2_INTCOPROC_ALLOWED) ? true : false) /* A process that can access the INTCOPROC interface can also access the MANAGEMENT interface */ #define INP_MANAGEMENT_ALLOWED(_inp) \ (((_inp)->inp_flags2 & (INP2_MANAGEMENT_ALLOWED | INP2_INTCOPROC_ALLOWED)) ? true : false) #define INP_ULTRA_CONSTRAINED_ALLOWED(_inp) \ (((_inp)->inp_flags2 & INP2_ULTRA_CONSTRAINED_ALLOWED) ? true : false) #endif /* BSD_KERNEL_PRIVATE */ /* * Flags for inp_flags. * * Some of these are publicly defined for legacy reasons, as they are * (unfortunately) used by certain applications to determine, at compile * time, whether or not the OS supports certain features. */ #ifdef BSD_KERNEL_PRIVATE #define INP_RECVOPTS 0x00000001 /* receive incoming IP options */ #define INP_RECVRETOPTS 0x00000002 /* receive IP options for reply */ #define INP_RECVDSTADDR 0x00000004 /* receive IP dst address */ #define INP_HDRINCL 0x00000008 /* user supplies entire IP header */ #define INP_HIGHPORT 0x00000010 /* user wants "high" port binding */ #define INP_LOWPORT 0x00000020 /* user wants "low" port binding */ #endif /* BSD_KERNEL_PRIVATE */ #define INP_ANONPORT 0x00000040 /* port chosen for user */ #ifdef BSD_KERNEL_PRIVATE #define INP_RECVIF 0x00000080 /* receive incoming interface */ #define INP_MTUDISC 0x00000100 /* unused */ #define INP_STRIPHDR 0x00000200 /* strip hdrs in raw_ip (for OT) */ #define INP_RECV_ANYIF 0x00000400 /* don't restrict inbound iface */ #define INP_INADDR_ANY 0x00000800 /* local address wasn't specified */ #define INP_IN6ADDR_ANY INP_INADDR_ANY #define INP_RECVTTL 0x00001000 /* receive incoming IP TTL */ #define INP_UDP_NOCKSUM 0x00002000 /* turn off outbound UDP checksum */ #define INP_BOUND_IF 0x00004000 /* bind socket to an interface */ #endif /* BSD_KERNEL_PRIVATE */ #define IN6P_IPV6_V6ONLY 0x00008000 /* restrict AF_INET6 socket for v6 */ #ifdef BSD_KERNEL_PRIVATE #define IN6P_PKTINFO 0x00010000 /* receive IP6 dst and I/F */ #define IN6P_HOPLIMIT 0x00020000 /* receive hoplimit */ #define IN6P_HOPOPTS 0x00040000 /* receive hop-by-hop options */ #define IN6P_DSTOPTS 0x00080000 /* receive dst options after rthdr */ #define IN6P_RTHDR 0x00100000 /* receive routing header */ #define IN6P_RTHDRDSTOPTS 0x00200000 /* receive dstoptions before rthdr */ #define IN6P_TCLASS 0x00400000 /* receive traffic class value */ #define INP_RECVTOS IN6P_TCLASS /* receive incoming IP TOS */ #define IN6P_AUTOFLOWLABEL 0x00800000 /* attach flowlabel automatically */ #endif /* BSD_KERNEL_PRIVATE */ #define IN6P_BINDV6ONLY 0x01000000 /* do not grab IPv4 traffic */ #ifdef BSD_KERNEL_PRIVATE #define IN6P_RFC2292 0x02000000 /* used RFC2292 API on the socket */ #define IN6P_MTU 0x04000000 /* receive path MTU for IPv6 */ #define INP_PKTINFO 0x08000000 /* rcv and snd PKTINFO for IPv4 */ #define INP_FLOW_SUSPENDED 0x10000000 /* flow suspended */ #define INP_NO_IFT_CELLULAR 0x20000000 /* do not use cellular interface */ #define INP_FLOW_CONTROLLED 0x40000000 /* flow controlled */ #define INP_FC_FEEDBACK 0x80000000 /* got interface flow adv feedback */ #define INP_CONTROLOPTS \ (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|INP_RECVIF|INP_RECVTTL| \ INP_PKTINFO|IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|IN6P_DSTOPTS| \ IN6P_RTHDR|IN6P_RTHDRDSTOPTS|IN6P_TCLASS|IN6P_RFC2292|IN6P_MTU) #define INP_UNMAPPABLEOPTS \ (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|IN6P_AUTOFLOWLABEL) /* * Flags for inp_flags2. * * Overflowed INP flags; use INP2 prefix to avoid misuse. */ #define INP2_TIMEWAIT 0x00000001 /* in TIMEWAIT */ #define INP2_IN_FCTREE 0x00000002 /* in inp_fc_tree */ #define INP2_WANT_APP_POLICY 0x00000004 /* necp app policy check is desired */ #define INP2_NO_IFF_EXPENSIVE 0x00000008 /* do not use expensive interface */ #define INP2_INHASHLIST 0x00000010 /* pcb is in inp_hash list */ #define INP2_AWDL_UNRESTRICTED 0x00000020 /* AWDL restricted mode allowed */ #define INP2_KEEPALIVE_OFFLOAD 0x00000040 /* Enable UDP or TCP keepalive offload */ #define INP2_INTCOPROC_ALLOWED 0x00000080 /* Allow communication via internal co-processor interfaces */ #define INP2_CONNECT_IN_PROGRESS 0x00000100 /* A connect call is in progress, so binds are intermediate steps */ #define INP2_CLAT46_FLOW 0x00000200 /* The flow is going to use CLAT46 path */ #define INP2_EXTERNAL_PORT 0x00000400 /* The port is registered externally, for NECP listeners */ #define INP2_NO_IFF_CONSTRAINED 0x00000800 /* do not use constrained interface */ #define INP2_DONTFRAG 0x00001000 /* mark the DF bit in the IP header to avoid fragmentation */ #define INP2_SCOPED_BY_NECP 0x00002000 /* NECP scoped the pcb */ #define INP2_LOGGING_ENABLED 0x00004000 /* logging enabled for the socket */ #define INP2_LOGGED_SUMMARY 0x00008000 /* logged: the final summary */ #define INP2_MANAGEMENT_ALLOWED 0x00010000 /* Allow communication over a management interface */ #define INP2_MANAGEMENT_CHECKED 0x00020000 /* Checked entitlements for a management interface */ #define INP2_BIND_IN_PROGRESS 0x00040000 /* A bind call is in progress */ #define INP2_LAST_ROUTE_LOCAL 0x00080000 /* Last used route was local */ #define INP2_ULTRA_CONSTRAINED_ALLOWED 0x00100000 /* Allow communication over ultra-constrained interfaces */ #define INP2_ULTRA_CONSTRAINED_CHECKED 0x00200000 /* Checked entitlements for ultra-constrained interfaces */ #define INP2_RECV_LINK_ADDR_TYPE 0x00400000 /* receive the type of the link level address */ #define INP2_CONNECTION_IDLE 0x00800000 /* Connection is idle */ /* * Flags passed to in_pcblookup*() functions. */ #define INPLOOKUP_WILDCARD 1 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) #define sotoin6pcb(so) sotoinpcb(so) struct sysctl_req; extern int ipport_lowfirstauto; extern int ipport_lowlastauto; extern int ipport_firstauto; extern int ipport_lastauto; extern int ipport_hifirstauto; extern int ipport_hilastauto; extern int allow_udp_port_exhaustion; #define UDP_RANDOM_PORT_RESERVE 4096 /* freshly allocated PCB, it's in use */ #define INPCB_STATE_INUSE 0x1 /* this pcb is sitting in a a cache */ #define INPCB_STATE_CACHED 0x2 /* should treat as gone, will be garbage collected and freed */ #define INPCB_STATE_DEAD 0x3 /* marked as ready to be garbaged collected, should be treated as not found */ #define WNT_STOPUSING 0xffff /* that pcb is being acquired, do not recycle this time */ #define WNT_ACQUIRE 0x1 /* release acquired mode, can be garbage collected when wantcnt is null */ #define WNT_RELEASE 0x2 extern void in_pcbinit(void); extern void in_pcbinfo_attach(struct inpcbinfo *); extern int in_pcbinfo_detach(struct inpcbinfo *); /* type of timer to be scheduled by inpcb_gc_sched and inpcb_timer_sched */ enum { INPCB_TIMER_LAZY = 0x1, INPCB_TIMER_FAST, INPCB_TIMER_NODELAY }; extern void inpcb_gc_sched(struct inpcbinfo *, u_int32_t type); extern void inpcb_timer_sched(struct inpcbinfo *, u_int32_t type); extern void in_losing(struct inpcb *); extern void in_rtchange(struct inpcb *, int); extern int in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *); extern int in_pcbbind(struct inpcb *, struct sockaddr *, struct sockaddr *, struct proc *); extern int in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *, unsigned int, struct ifnet **); extern void in_pcbdetach(struct inpcb *); extern void in_pcbdispose(struct inpcb *); extern void in_pcbdisconnect(struct inpcb *); extern int in_pcbinshash(struct inpcb *, struct sockaddr *, int); extern int in_pcbladdr(struct inpcb *, struct sockaddr *, struct in_addr *, unsigned int, struct ifnet **, int); extern struct inpcb *in_pcblookup_local(struct inpcbinfo *, struct in_addr, u_int, int); extern struct inpcb *in_pcblookup_local_and_cleanup(struct inpcbinfo *, struct in_addr, u_int, int); extern struct inpcb *in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int, struct in_addr, u_int, int, struct ifnet *); extern struct inpcb *in_pcblookup_hash_try(struct inpcbinfo *pcbinfo, struct in_addr faddr, u_int fport_arg, struct in_addr laddr, u_int lport_arg, int wildcard, struct ifnet *ifp); extern int in_pcblookup_hash_exists(struct inpcbinfo *, struct in_addr, u_int, struct in_addr, u_int, int, uid_t *, gid_t *, struct ifnet *); extern void in_pcbnotifyall(struct inpcbinfo *, struct in_addr, int, void (*)(struct inpcb *, int)); extern void in_pcbrehash(struct inpcb *); extern int in_getpeeraddr(struct socket *, struct sockaddr **); extern int in_getsockaddr(struct socket *, struct sockaddr **); extern int in_getsockaddr_s(struct socket *, struct sockaddr_in *); extern int in_pcb_checkstate(struct inpcb *, int, int); extern void in_pcbremlists(struct inpcb *); extern void inpcb_to_compat(struct inpcb *, struct inpcb_compat *); #if XNU_TARGET_OS_OSX extern void inpcb_to_xinpcb64(struct inpcb *, struct xinpcb64 *); #endif /* XNU_TARGET_OS_OSX */ extern int get_pcblist_n(short, struct sysctl_req *, struct inpcbinfo *); extern void inpcb_get_ports_used(ifnet_t, int, u_int32_t, bitstr_t *__counted_by(bitstr_size(IP_PORTRANGE_SIZE)), struct inpcbinfo *); #define INPCB_OPPORTUNISTIC_THROTTLEON 0x0001 #define INPCB_OPPORTUNISTIC_SETCMD 0x0002 extern uint32_t inpcb_count_opportunistic(unsigned int, struct inpcbinfo *, u_int32_t); extern uint32_t inpcb_find_anypcb_byaddr(struct ifaddr *, struct inpcbinfo *); extern void inp_route_copyout(struct inpcb *, struct route *); extern void inp_route_copyin(struct inpcb *, struct route *); extern int inp_bindif(struct inpcb *, unsigned int, struct ifnet **); extern int inp_bindtodevice(struct inpcb *, const char *); extern void inp_set_nocellular(struct inpcb *); extern void inp_clear_nocellular(struct inpcb *); extern void inp_set_noexpensive(struct inpcb *); extern void inp_set_noconstrained(struct inpcb *); extern void inp_set_awdl_unrestricted(struct inpcb *); extern boolean_t inp_get_awdl_unrestricted(struct inpcb *); extern void inp_clear_awdl_unrestricted(struct inpcb *); extern void inp_set_intcoproc_allowed(struct inpcb *); extern boolean_t inp_get_intcoproc_allowed(struct inpcb *); extern void inp_clear_intcoproc_allowed(struct inpcb *); extern void inp_set_management_allowed(struct inpcb *); extern boolean_t inp_get_management_allowed(struct inpcb *); extern void inp_clear_management_allowed(struct inpcb *); extern void inp_set_ultra_constrained_allowed(struct inpcb *); #if NECP extern void inp_update_necp_policy(struct inpcb *, struct sockaddr *, struct sockaddr *, u_int); extern void inp_set_want_app_policy(struct inpcb *); extern void inp_clear_want_app_policy(struct inpcb *); #endif /* NECP */ extern u_int32_t inp_calc_flowhash(struct inpcb *); extern void inp_reset_fc_state(struct inpcb *); extern int inp_set_fc_state(struct inpcb *, int advcode); extern void inp_fc_unthrottle_tcp(struct inpcb *); extern void inp_fc_throttle_tcp(struct inpcb *inp); extern void inp_flowadv(uint32_t); extern int inp_flush(struct inpcb *, int); extern int inp_findinpcb_procinfo(struct inpcbinfo *, uint32_t, struct so_procinfo *); extern void inp_get_soprocinfo(struct inpcb *, struct so_procinfo *); extern int inp_update_policy(struct inpcb *); extern boolean_t inp_restricted_recv(struct inpcb *, struct ifnet *); extern boolean_t inp_restricted_send(struct inpcb *, struct ifnet *); extern void inp_incr_sndbytes_total(struct socket *, int); extern void inp_decr_sndbytes_total(struct socket *, int); extern void inp_count_sndbytes(struct inpcb *, u_int32_t); extern void inp_incr_sndbytes_unsent(struct socket *, int32_t); extern void inp_decr_sndbytes_unsent(struct socket *, int32_t); extern int32_t inp_get_sndbytes_allunsent(struct socket *, u_int32_t); extern void inp_decr_sndbytes_allunsent(struct socket *, u_int32_t); extern void inp_get_activity_bitmap(struct inpcb *inp, activity_bitmap_t *b); extern void inp_update_last_owner(struct socket *so, struct proc *p, struct proc *ep); extern void inp_copy_last_owner(struct socket *so, struct socket *head); extern void inp_enter_bind_in_progress(struct socket *so); extern void inp_exit_bind_in_progress(struct socket *so); #if SKYWALK extern void inp_update_netns_flags(struct socket *so); #endif /* SKYWALK */ #endif /* BSD_KERNEL_PRIVATE */ #ifdef KERNEL_PRIVATE /* exported for PPP */ extern void inp_clear_INP_INADDR_ANY(struct socket *); extern int inp_limit_companion_link(struct inpcbinfo *pcbinfo, u_int32_t limit); extern int inp_recover_companion_link(struct inpcbinfo *pcbinfo); extern void in_management_interface_check(void); extern void in_pcb_check_management_entitled(struct inpcb *inp); extern void in_pcb_check_ultra_constrained_entitled(struct inpcb *inp); extern char *inp_snprintf_tuple(struct inpcb *, char *__sized_by(buflen) buf, size_t buflen); extern int in_pcbsetport(struct in_addr, struct sockaddr *, struct inpcb *, struct proc *, int); #endif /* KERNEL_PRIVATE */ #endif /* !_NETINET_IN_PCB_H_ */ |