1 | /* |
2 | * Copyright (c) 2000-2022 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * Copyright (c) 1982, 1986, 1990, 1993 |
30 | * The Regents of the University of California. All rights reserved. |
31 | * |
32 | * Redistribution and use in source and binary forms, with or without |
33 | * modification, are permitted provided that the following conditions |
34 | * are met: |
35 | * 1. Redistributions of source code must retain the above copyright |
36 | * notice, this list of conditions and the following disclaimer. |
37 | * 2. Redistributions in binary form must reproduce the above copyright |
38 | * notice, this list of conditions and the following disclaimer in the |
39 | * documentation and/or other materials provided with the distribution. |
40 | * 3. All advertising materials mentioning features or use of this software |
41 | * must display the following acknowledgement: |
42 | * This product includes software developed by the University of |
43 | * California, Berkeley and its contributors. |
44 | * 4. Neither the name of the University nor the names of its contributors |
45 | * may be used to endorse or promote products derived from this software |
46 | * without specific prior written permission. |
47 | * |
48 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
58 | * SUCH DAMAGE. |
59 | * |
60 | * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 |
61 | * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $ |
62 | */ |
63 | /* |
64 | * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce |
65 | * support for mandatory and extensible security protections. This notice |
66 | * is included in support of clause 2.2 (b) of the Apple Public License, |
67 | * Version 2.0. |
68 | */ |
69 | |
70 | #ifndef _NETINET_IN_PCB_H_ |
71 | #define _NETINET_IN_PCB_H_ |
72 | #include <sys/appleapiopts.h> |
73 | |
74 | #include <netinet/in.h> |
75 | #include <sys/socketvar.h> |
76 | #include <sys/types.h> |
77 | #include <sys/queue.h> |
78 | #ifdef BSD_KERNEL_PRIVATE |
79 | #include <sys/bitstring.h> |
80 | #include <sys/tree.h> |
81 | #include <kern/locks.h> |
82 | #include <kern/zalloc.h> |
83 | #include <netinet/in_stat.h> |
84 | #endif /* BSD_KERNEL_PRIVATE */ |
85 | #if !KERNEL |
86 | #include <TargetConditionals.h> |
87 | #endif |
88 | |
89 | #if IPSEC |
90 | #include <netinet6/ipsec.h> /* for IPSEC */ |
91 | #endif /* IPSEC */ |
92 | |
93 | #if NECP |
94 | #include <net/necp.h> |
95 | #endif |
96 | |
97 | #if SKYWALK |
98 | #include <skywalk/namespace/netns.h> |
99 | #endif /* SKYWALK */ |
100 | |
101 | #ifdef BSD_KERNEL_PRIVATE |
102 | /* |
103 | * struct inpcb is the common protocol control block structure used in most |
104 | * IP transport protocols. |
105 | * |
106 | * Pointers to local and foreign host table entries, local and foreign socket |
107 | * numbers, and pointers up (to a socket structure) and down (to a |
108 | * protocol-specific control block) are stored here. |
109 | */ |
110 | LIST_HEAD(inpcbhead, inpcb); |
111 | LIST_HEAD(inpcbporthead, inpcbport); |
112 | #endif /* BSD_KERNEL_PRIVATE */ |
113 | typedef u_quad_t inp_gen_t; |
114 | |
115 | /* |
116 | * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet. |
117 | * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing |
118 | * the following structure. |
119 | */ |
120 | struct in_addr_4in6 { |
121 | u_int32_t ia46_pad32[3]; |
122 | struct in_addr ia46_addr4; |
123 | }; |
124 | |
125 | #ifdef BSD_KERNEL_PRIVATE |
126 | /* |
127 | * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS |
128 | * of the structure. Therefore, it is important that the members in |
129 | * that position not contain any information which is required to be |
130 | * stable. |
131 | */ |
132 | struct icmp6_filter; |
133 | struct ifnet; |
134 | |
135 | struct inp_stat { |
136 | u_int64_t rxpackets; |
137 | u_int64_t rxbytes; |
138 | u_int64_t txpackets; |
139 | u_int64_t txbytes; |
140 | }; |
141 | |
142 | struct inp_necp_attributes { |
143 | char *inp_domain; |
144 | char *inp_account; |
145 | char *inp_domain_owner; |
146 | char *inp_tracker_domain; |
147 | char *inp_domain_context; |
148 | }; |
149 | |
150 | /* |
151 | * struct inpcb captures the network layer state for TCP, UDP and raw IPv6 |
152 | * and IPv6 sockets. In the case of TCP, further per-connection state is |
153 | * hung off of inp_ppcb most of the time. |
154 | */ |
155 | struct inpcb { |
156 | decl_lck_mtx_data(, inpcb_mtx); /* inpcb per-socket mutex */ |
157 | LIST_ENTRY(inpcb) inp_hash; /* hash list */ |
158 | LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ |
159 | void *inp_ppcb; /* pointer to per-protocol pcb */ |
160 | struct inpcbinfo *inp_pcbinfo; /* PCB list info */ |
161 | struct socket *inp_socket; /* back pointer to socket */ |
162 | LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */ |
163 | RB_ENTRY(inpcb) infc_link; /* link for flowhash RB tree */ |
164 | struct inpcbport *inp_phd; /* head of this list */ |
165 | inp_gen_t inp_gencnt; /* generation count of this instance */ |
166 | int inp_hash_element; /* array index of pcb's hash list */ |
167 | int inp_wantcnt; /* wanted count; atomically updated */ |
168 | int inp_state; /* state (INUSE/CACHED/DEAD) */ |
169 | u_short inp_fport; /* foreign port */ |
170 | u_short inp_lport; /* local port */ |
171 | uint32_t inp_flags; /* generic IP/datagram flags */ |
172 | uint32_t inp_flags2; /* generic IP/datagram flags #2 */ |
173 | uint32_t inp_log_flags; |
174 | uint32_t inp_flow; /* IPv6 flow information */ |
175 | uint32_t inp_lifscope; /* IPv6 scope ID of the local address */ |
176 | uint32_t inp_fifscope; /* IPv6 scope ID of the foreign address */ |
177 | |
178 | uint32_t inp_sndingprog_waiters;/* waiters for outstanding send */ |
179 | u_char inp_sndinprog_cnt; /* outstanding send operations */ |
180 | u_char inp_vflag; /* INP_IPV4 or INP_IPV6 */ |
181 | |
182 | u_char inp_ip_ttl; /* time to live proto */ |
183 | u_char inp_ip_p; /* protocol proto */ |
184 | |
185 | struct ifnet *inp_boundifp; /* interface for INP_BOUND_IF */ |
186 | struct ifnet *inp_last_outifp; /* last known outgoing interface */ |
187 | uint32_t inp_flowhash; /* flow hash */ |
188 | |
189 | /* Protocol-dependent part */ |
190 | union { |
191 | /* foreign host table entry */ |
192 | struct in_addr_4in6 inp46_foreign; |
193 | struct in6_addr inp6_foreign; |
194 | } inp_dependfaddr; |
195 | union { |
196 | /* local host table entry */ |
197 | struct in_addr_4in6 inp46_local; |
198 | struct in6_addr inp6_local; |
199 | } inp_dependladdr; |
200 | union { |
201 | /* placeholder for routing entry */ |
202 | struct route inp4_route; |
203 | struct route_in6 inp6_route; |
204 | } inp_dependroute; |
205 | struct { |
206 | /* type of service proto */ |
207 | u_char inp4_ip_tos; |
208 | /* IP options */ |
209 | struct mbuf *inp4_options; |
210 | /* IP multicast options */ |
211 | struct ip_moptions *inp4_moptions; |
212 | } inp_depend4; |
213 | struct { |
214 | /* IP options */ |
215 | struct mbuf *inp6_options; |
216 | /* IP6 options for outgoing packets */ |
217 | struct ip6_pktopts *inp6_outputopts; |
218 | /* IP multicast options */ |
219 | struct ip6_moptions *inp6_moptions; |
220 | /* ICMPv6 code type filter */ |
221 | struct icmp6_filter *inp6_icmp6filt; |
222 | /* IPV6_CHECKSUM setsockopt */ |
223 | int inp6_cksum; |
224 | short inp6_hops; |
225 | } inp_depend6; |
226 | |
227 | uint64_t inp_fadv_total_time; |
228 | uint64_t inp_fadv_start_time; |
229 | uint64_t inp_fadv_cnt; |
230 | |
231 | caddr_t inp_saved_ppcb; /* place to save pointer while cached */ |
232 | #if IPSEC |
233 | struct inpcbpolicy *inp_sp; /* for IPsec */ |
234 | #endif /* IPSEC */ |
235 | #if NECP |
236 | struct inp_necp_attributes inp_necp_attributes; |
237 | struct necp_inpcb_result inp_policyresult; |
238 | uuid_t necp_client_uuid; |
239 | necp_client_flow_cb necp_cb; |
240 | uint8_t *inp_resolver_signature; |
241 | size_t inp_resolver_signature_length; |
242 | #endif |
243 | #if SKYWALK |
244 | netns_token inp_netns_token; /* shared namespace state */ |
245 | /* optional IPv4 wildcard namespace reservation for an IPv6 socket */ |
246 | netns_token inp_wildcard_netns_token; |
247 | #endif /* SKYWALK */ |
248 | u_char *inp_keepalive_data; /* for keepalive offload */ |
249 | uint8_t inp_keepalive_datalen; /* keepalive data length */ |
250 | uint8_t inp_keepalive_type; /* type of application */ |
251 | uint16_t inp_keepalive_interval; /* keepalive interval */ |
252 | uint32_t inp_nstat_refcnt __attribute__((aligned(4))); |
253 | struct inp_stat *inp_stat; |
254 | struct inp_stat *inp_cstat; /* cellular data */ |
255 | struct inp_stat *inp_wstat; /* Wi-Fi data */ |
256 | struct inp_stat *inp_Wstat; /* Wired data */ |
257 | uint8_t inp_stat_store[sizeof(struct inp_stat) + sizeof(u_int64_t)]; |
258 | uint8_t inp_cstat_store[sizeof(struct inp_stat) + sizeof(u_int64_t)]; |
259 | uint8_t inp_wstat_store[sizeof(struct inp_stat) + sizeof(u_int64_t)]; |
260 | uint8_t inp_Wstat_store[sizeof(struct inp_stat) + sizeof(u_int64_t)]; |
261 | activity_bitmap_t inp_nw_activity; |
262 | uint64_t inp_start_timestamp; |
263 | uint64_t inp_connect_timestamp; |
264 | |
265 | char inp_last_proc_name[MAXCOMLEN + 1]; |
266 | char inp_e_proc_name[MAXCOMLEN + 1]; |
267 | }; |
268 | |
269 | #define INP_ADD_STAT(_inp, _cnt_cellular, _cnt_wifi, _cnt_wired, _a, _n) \ |
270 | do { \ |
271 | locked_add_64(&((_inp)->inp_stat->_a), (_n)); \ |
272 | if (_cnt_cellular) \ |
273 | locked_add_64(&((_inp)->inp_cstat->_a), (_n)); \ |
274 | if (_cnt_wifi) \ |
275 | locked_add_64(&((_inp)->inp_wstat->_a), (_n)); \ |
276 | if (_cnt_wired) \ |
277 | locked_add_64(&((_inp)->inp_Wstat->_a), (_n)); \ |
278 | } while (0); |
279 | #endif /* BSD_KERNEL_PRIVATE */ |
280 | |
281 | /* |
282 | * Interface exported to userland by various protocols which use |
283 | * inpcbs. Hack alert -- only define if struct xsocket is in scope. |
284 | */ |
285 | #pragma pack(4) |
286 | |
287 | #if defined(__LP64__) |
288 | struct _inpcb_list_entry { |
289 | u_int32_t le_next; |
290 | u_int32_t le_prev; |
291 | }; |
292 | #define _INPCB_PTR(x) u_int32_t |
293 | #define _INPCB_LIST_ENTRY(x) struct _inpcb_list_entry |
294 | #else /* !__LP64__ */ |
295 | #define _INPCB_PTR(x) x |
296 | #define _INPCB_LIST_ENTRY(x) LIST_ENTRY(x) |
297 | #endif /* !__LP64__ */ |
298 | |
299 | #ifdef XNU_KERNEL_PRIVATE |
300 | /* |
301 | * This is a copy of the inpcb as it shipped in Panther. This structure |
302 | * is filled out in a copy function. This allows the inpcb to change |
303 | * without breaking userland tools. |
304 | * |
305 | * CAUTION: Many fields may not be filled out. Fewer may be filled out |
306 | * in the future. Code defensively. |
307 | */ |
308 | struct inpcb_compat { |
309 | #else |
310 | struct inpcbinfo; |
311 | struct inpcbport; |
312 | struct mbuf; |
313 | struct ip6_pktopts; |
314 | struct ip6_moptions; |
315 | struct icmp6_filter; |
316 | struct inpcbpolicy; |
317 | |
318 | struct inpcb { |
319 | #endif /* KERNEL_PRIVATE */ |
320 | _INPCB_LIST_ENTRY(inpcb) inp_hash; /* hash list */ |
321 | struct in_addr reserved1; /* reserved */ |
322 | struct in_addr reserved2; /* reserved */ |
323 | u_short inp_fport; /* foreign port */ |
324 | u_short inp_lport; /* local port */ |
325 | _INPCB_LIST_ENTRY(inpcb) inp_list; /* list for all peer PCBs */ |
326 | _INPCB_PTR(caddr_t) inp_ppcb; /* per-protocol pcb */ |
327 | _INPCB_PTR(struct inpcbinfo *) inp_pcbinfo; /* PCB list info */ |
328 | _INPCB_PTR(void *) inp_socket; /* back pointer to socket */ |
329 | u_char nat_owner; /* Used to NAT TCP/UDP traffic */ |
330 | u_int32_t nat_cookie; /* Cookie stored and returned to NAT */ |
331 | _INPCB_LIST_ENTRY(inpcb) inp_portlist; /* this PCB's local port list */ |
332 | _INPCB_PTR(struct inpcbport *) inp_phd; /* head of this list */ |
333 | inp_gen_t inp_gencnt; /* generation count of this instance */ |
334 | int inp_flags; /* generic IP/datagram flags */ |
335 | u_int32_t inp_flow; |
336 | |
337 | u_char inp_vflag; |
338 | |
339 | u_char inp_ip_ttl; /* time to live proto */ |
340 | u_char inp_ip_p; /* protocol proto */ |
341 | /* protocol dependent part */ |
342 | union { |
343 | /* foreign host table entry */ |
344 | struct in_addr_4in6 inp46_foreign; |
345 | struct in6_addr inp6_foreign; |
346 | } inp_dependfaddr; |
347 | union { |
348 | /* local host table entry */ |
349 | struct in_addr_4in6 inp46_local; |
350 | struct in6_addr inp6_local; |
351 | } inp_dependladdr; |
352 | union { |
353 | /* placeholder for routing entry */ |
354 | u_char inp4_route[20]; |
355 | u_char inp6_route[32]; |
356 | } inp_dependroute; |
357 | struct { |
358 | /* type of service proto */ |
359 | u_char inp4_ip_tos; |
360 | /* IP options */ |
361 | _INPCB_PTR(struct mbuf *) inp4_options; |
362 | /* IP multicast options */ |
363 | _INPCB_PTR(struct ip_moptions *) inp4_moptions; |
364 | } inp_depend4; |
365 | |
366 | struct { |
367 | /* IP options */ |
368 | _INPCB_PTR(struct mbuf *) inp6_options; |
369 | u_int8_t inp6_hlim; |
370 | u_int8_t unused_uint8_1; |
371 | ushort unused_uint16_1; |
372 | /* IP6 options for outgoing packets */ |
373 | _INPCB_PTR(struct ip6_pktopts *) inp6_outputopts; |
374 | /* IP multicast options */ |
375 | _INPCB_PTR(struct ip6_moptions *) inp6_moptions; |
376 | /* ICMPv6 code type filter */ |
377 | _INPCB_PTR(struct icmp6_filter *) inp6_icmp6filt; |
378 | /* IPV6_CHECKSUM setsockopt */ |
379 | int inp6_cksum; |
380 | u_short inp6_ifindex; |
381 | short inp6_hops; |
382 | } inp_depend6; |
383 | |
384 | int hash_element; /* Array index of pcb's hash list */ |
385 | _INPCB_PTR(caddr_t) inp_saved_ppcb; /* pointer while cached */ |
386 | _INPCB_PTR(struct inpcbpolicy *) inp_sp; |
387 | u_int32_t reserved[3]; /* reserved */ |
388 | }; |
389 | |
390 | struct xinpcb { |
391 | u_int32_t xi_len; /* length of this structure */ |
392 | #ifdef XNU_KERNEL_PRIVATE |
393 | struct inpcb_compat xi_inp; |
394 | #else |
395 | struct inpcb xi_inp; |
396 | #endif |
397 | struct xsocket xi_socket; |
398 | u_quad_t xi_alignment_hack; |
399 | }; |
400 | |
401 | #if XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) |
402 | struct inpcb64_list_entry { |
403 | u_int64_t le_next; |
404 | u_int64_t le_prev; |
405 | }; |
406 | |
407 | struct xinpcb64 { |
408 | u_int64_t xi_len; /* length of this structure */ |
409 | u_int64_t xi_inpp; |
410 | u_short inp_fport; /* foreign port */ |
411 | u_short inp_lport; /* local port */ |
412 | struct inpcb64_list_entry inp_list; /* list for all PCBs */ |
413 | u_int64_t inp_ppcb; /* ptr to per-protocol PCB */ |
414 | u_int64_t inp_pcbinfo; /* PCB list info */ |
415 | struct inpcb64_list_entry inp_portlist; /* this PCB's local port list */ |
416 | u_int64_t inp_phd; /* head of this list */ |
417 | inp_gen_t inp_gencnt; /* current generation count */ |
418 | int inp_flags; /* generic IP/datagram flags */ |
419 | u_int32_t inp_flow; |
420 | u_char inp_vflag; |
421 | u_char inp_ip_ttl; /* time to live */ |
422 | u_char inp_ip_p; /* protocol */ |
423 | union { /* foreign host table entry */ |
424 | struct in_addr_4in6 inp46_foreign; |
425 | struct in6_addr inp6_foreign; |
426 | } inp_dependfaddr; |
427 | union { /* local host table entry */ |
428 | struct in_addr_4in6 inp46_local; |
429 | struct in6_addr inp6_local; |
430 | } inp_dependladdr; |
431 | struct { |
432 | u_char inp4_ip_tos; /* type of service */ |
433 | } inp_depend4; |
434 | struct { |
435 | u_int8_t inp6_hlim; |
436 | int inp6_cksum; |
437 | u_short inp6_ifindex; |
438 | short inp6_hops; |
439 | } inp_depend6; |
440 | struct xsocket64 xi_socket; |
441 | u_quad_t xi_alignment_hack; |
442 | }; |
443 | #endif /* XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */ |
444 | |
445 | #ifdef PRIVATE |
446 | struct xinpcb_list_entry { |
447 | u_int64_t le_next; |
448 | u_int64_t le_prev; |
449 | }; |
450 | |
451 | struct xinpcb_n { |
452 | u_int32_t xi_len; /* length of this structure */ |
453 | u_int32_t xi_kind; /* XSO_INPCB */ |
454 | u_int64_t xi_inpp; |
455 | u_short inp_fport; /* foreign port */ |
456 | u_short inp_lport; /* local port */ |
457 | u_int64_t inp_ppcb; /* pointer to per-protocol pcb */ |
458 | inp_gen_t inp_gencnt; /* generation count of this instance */ |
459 | int inp_flags; /* generic IP/datagram flags */ |
460 | u_int32_t inp_flow; |
461 | u_char inp_vflag; |
462 | u_char inp_ip_ttl; /* time to live */ |
463 | u_char inp_ip_p; /* protocol */ |
464 | union { /* foreign host table entry */ |
465 | struct in_addr_4in6 inp46_foreign; |
466 | struct in6_addr inp6_foreign; |
467 | } inp_dependfaddr; |
468 | union { /* local host table entry */ |
469 | struct in_addr_4in6 inp46_local; |
470 | struct in6_addr inp6_local; |
471 | } inp_dependladdr; |
472 | struct { |
473 | u_char inp4_ip_tos; /* type of service */ |
474 | } inp_depend4; |
475 | struct { |
476 | u_int8_t inp6_hlim; |
477 | int inp6_cksum; |
478 | u_short inp6_ifindex; |
479 | short inp6_hops; |
480 | } inp_depend6; |
481 | u_int32_t inp_flowhash; |
482 | u_int32_t inp_flags2; |
483 | }; |
484 | #endif /* PRIVATE */ |
485 | |
486 | struct xinpgen { |
487 | u_int32_t xig_len; /* length of this structure */ |
488 | u_int xig_count; /* number of PCBs at this time */ |
489 | inp_gen_t xig_gen; /* generation count at this time */ |
490 | so_gen_t xig_sogen; /* current socket generation count */ |
491 | }; |
492 | |
493 | #pragma pack() |
494 | |
495 | /* |
496 | * These defines are for use with the inpcb. |
497 | */ |
498 | #define INP_IPV4 0x1 |
499 | #define INP_IPV6 0x2 |
500 | #define INP_V4MAPPEDV6 0x4 |
501 | #define inp_faddr inp_dependfaddr.inp46_foreign.ia46_addr4 |
502 | #define inp_laddr inp_dependladdr.inp46_local.ia46_addr4 |
503 | #define in6p_faddr inp_dependfaddr.inp6_foreign |
504 | #define in6p_laddr inp_dependladdr.inp6_local |
505 | |
506 | #ifdef BSD_KERNEL_PRIVATE |
507 | #define inp_route inp_dependroute.inp4_route |
508 | #define inp_ip_tos inp_depend4.inp4_ip_tos |
509 | #define inp_options inp_depend4.inp4_options |
510 | #define inp_moptions inp_depend4.inp4_moptions |
511 | #define in6p_route inp_dependroute.inp6_route |
512 | #define in6p_ip6_hlim inp_depend6.inp6_hlim |
513 | #define in6p_hops inp_depend6.inp6_hops /* default hop limit */ |
514 | #define in6p_ip6_nxt inp_ip_p |
515 | #define in6p_vflag inp_vflag |
516 | #define in6p_options inp_depend6.inp6_options |
517 | #define in6p_outputopts inp_depend6.inp6_outputopts |
518 | #define in6p_moptions inp_depend6.inp6_moptions |
519 | #define in6p_icmp6filt inp_depend6.inp6_icmp6filt |
520 | #define in6p_cksum inp_depend6.inp6_cksum |
521 | #define in6p_ifindex inp_depend6.inp6_ifindex |
522 | #define in6p_flags inp_flags |
523 | #define in6p_flags2 inp_flags2 |
524 | #define in6p_socket inp_socket |
525 | #define in6p_lport inp_lport |
526 | #define in6p_fport inp_fport |
527 | #define in6p_ppcb inp_ppcb |
528 | #define in6p_state inp_state |
529 | #define in6p_wantcnt inp_wantcnt |
530 | #define in6p_last_outifp inp_last_outifp |
531 | #define in6pcb inpcb |
532 | #if IPSEC |
533 | #define in6p_sp inp_sp |
534 | #endif /* IPSEC */ |
535 | #define INP_INC_IFNET_STAT(_inp_, _stat_) { \ |
536 | if ((_inp_)->inp_last_outifp != NULL) { \ |
537 | if ((_inp_)->inp_vflag & INP_IPV6) { \ |
538 | (_inp_)->inp_last_outifp->if_ipv6_stat->_stat_++;\ |
539 | } else { \ |
540 | (_inp_)->inp_last_outifp->if_ipv4_stat->_stat_++;\ |
541 | }\ |
542 | }\ |
543 | } |
544 | |
545 | struct inpcbport { |
546 | LIST_ENTRY(inpcbport) phd_hash; |
547 | struct inpcbhead phd_pcblist; |
548 | u_short phd_port; |
549 | }; |
550 | |
551 | struct intimercount { |
552 | u_int32_t intimer_lazy; /* lazy requests for timer scheduling */ |
553 | u_int32_t intimer_fast; /* fast requests, can be coalesced */ |
554 | u_int32_t intimer_nodelay; /* fast requests, never coalesced */ |
555 | }; |
556 | |
557 | typedef void (*inpcb_timer_func_t)(struct inpcbinfo *); |
558 | |
559 | /* |
560 | * Global data structure for each high-level protocol (UDP, TCP, ...) in both |
561 | * IPv4 and IPv6. Holds inpcb lists and information for managing them. Each |
562 | * pcbinfo is protected by a RW lock: ipi_lock. |
563 | * |
564 | * All INPCB pcbinfo entries are linked together via ipi_entry. |
565 | */ |
566 | struct inpcbinfo { |
567 | /* |
568 | * Glue to all PCB infos, as well as garbage collector and |
569 | * timer callbacks, protected by inpcb_lock. Callout request |
570 | * counts are atomically updated. |
571 | */ |
572 | TAILQ_ENTRY(inpcbinfo) ipi_entry; |
573 | inpcb_timer_func_t ipi_gc; |
574 | inpcb_timer_func_t ipi_timer; |
575 | struct intimercount ipi_gc_req; |
576 | struct intimercount ipi_timer_req; |
577 | |
578 | /* |
579 | * Per-protocol lock protecting pcb list, pcb count, etc. |
580 | */ |
581 | lck_rw_t ipi_lock; |
582 | |
583 | /* |
584 | * List and count of pcbs on the protocol. |
585 | */ |
586 | struct inpcbhead *ipi_listhead; |
587 | uint32_t ipi_count; |
588 | |
589 | /* |
590 | * Count of pcbs marked with INP2_TIMEWAIT flag. |
591 | */ |
592 | uint32_t ipi_twcount; |
593 | |
594 | /* |
595 | * Generation count -- incremented each time a connection is |
596 | * allocated or freed. |
597 | */ |
598 | uint64_t ipi_gencnt; |
599 | |
600 | /* |
601 | * Fields associated with port lookup and allocation. |
602 | */ |
603 | uint16_t ipi_lastport; |
604 | uint16_t ipi_lastlow; |
605 | uint16_t ipi_lasthi; |
606 | |
607 | /* |
608 | * Zone from which inpcbs are allocated for this protocol. |
609 | */ |
610 | #if BSD_KERNEL_PRIVATE |
611 | kalloc_type_view_t ipi_zone; |
612 | #else |
613 | struct zone *ipi_zone; |
614 | #endif |
615 | |
616 | /* |
617 | * Per-protocol hash of pcbs, hashed by local and foreign |
618 | * addresses and port numbers. |
619 | */ |
620 | struct inpcbhead *ipi_hashbase; |
621 | u_long ipi_hashmask; |
622 | |
623 | /* |
624 | * Per-protocol hash of pcbs, hashed by only local port number. |
625 | */ |
626 | struct inpcbporthead *ipi_porthashbase; |
627 | u_long ipi_porthashmask; |
628 | |
629 | /* |
630 | * Misc. |
631 | */ |
632 | lck_attr_t ipi_lock_attr; |
633 | lck_grp_t *ipi_lock_grp; |
634 | |
635 | #define INPCBINFO_UPDATE_MSS 0x1 |
636 | #define INPCBINFO_HANDLE_LQM_ABORT 0x2 |
637 | u_int32_t ipi_flags; |
638 | }; |
639 | |
640 | #define INP_PCBHASH(faddr, lport, fport, mask) \ |
641 | (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) |
642 | #define INP_PCBPORTHASH(lport, mask) \ |
643 | (ntohs((lport)) & (mask)) |
644 | |
645 | /* |
646 | * The following macro need to return a bool value |
647 | */ |
648 | #define INP_IS_FLOW_CONTROLLED(_inp_) \ |
649 | (((_inp_)->inp_flags & INP_FLOW_CONTROLLED) ? true : false) |
650 | #define INP_IS_FLOW_SUSPENDED(_inp_) \ |
651 | ((((_inp_)->inp_flags & INP_FLOW_SUSPENDED) || \ |
652 | ((_inp_)->inp_socket->so_flags & SOF_SUSPENDED)) ? true : false) |
653 | #define INP_WAIT_FOR_IF_FEEDBACK(_inp_) \ |
654 | (((_inp_)->inp_flags & (INP_FLOW_CONTROLLED | INP_FLOW_SUSPENDED)) != 0) |
655 | |
656 | #define INP_NO_CELLULAR(_inp) \ |
657 | (((_inp)->inp_flags & INP_NO_IFT_CELLULAR) ? true : false) |
658 | #define INP_NO_EXPENSIVE(_inp) \ |
659 | (((_inp)->inp_flags2 & INP2_NO_IFF_EXPENSIVE) ? true : false) |
660 | #define INP_NO_CONSTRAINED(_inp) \ |
661 | (((_inp)->inp_flags2 & INP2_NO_IFF_CONSTRAINED) ? true : false) |
662 | #define INP_AWDL_UNRESTRICTED(_inp) \ |
663 | (((_inp)->inp_flags2 & INP2_AWDL_UNRESTRICTED) ? true : false) |
664 | #define INP_INTCOPROC_ALLOWED(_inp) \ |
665 | (((_inp)->inp_flags2 & INP2_INTCOPROC_ALLOWED) ? true : false) |
666 | /* A process that can access the INTCOPROC interface can also access the MANAGEMENT interface */ |
667 | #define INP_MANAGEMENT_ALLOWED(_inp) \ |
668 | (((_inp)->inp_flags2 & (INP2_MANAGEMENT_ALLOWED | INP2_INTCOPROC_ALLOWED)) ? true : false) |
669 | |
670 | #endif /* BSD_KERNEL_PRIVATE */ |
671 | |
672 | /* |
673 | * Flags for inp_flags. |
674 | * |
675 | * Some of these are publicly defined for legacy reasons, as they are |
676 | * (unfortunately) used by certain applications to determine, at compile |
677 | * time, whether or not the OS supports certain features. |
678 | */ |
679 | #ifdef BSD_KERNEL_PRIVATE |
680 | #define INP_RECVOPTS 0x00000001 /* receive incoming IP options */ |
681 | #define INP_RECVRETOPTS 0x00000002 /* receive IP options for reply */ |
682 | #define INP_RECVDSTADDR 0x00000004 /* receive IP dst address */ |
683 | #define INP_HDRINCL 0x00000008 /* user supplies entire IP header */ |
684 | #define INP_HIGHPORT 0x00000010 /* user wants "high" port binding */ |
685 | #define INP_LOWPORT 0x00000020 /* user wants "low" port binding */ |
686 | #endif /* BSD_KERNEL_PRIVATE */ |
687 | |
688 | #define INP_ANONPORT 0x00000040 /* port chosen for user */ |
689 | |
690 | #ifdef BSD_KERNEL_PRIVATE |
691 | #define INP_RECVIF 0x00000080 /* receive incoming interface */ |
692 | #define INP_MTUDISC 0x00000100 /* unused */ |
693 | #define INP_STRIPHDR 0x00000200 /* strip hdrs in raw_ip (for OT) */ |
694 | #define INP_RECV_ANYIF 0x00000400 /* don't restrict inbound iface */ |
695 | #define INP_INADDR_ANY 0x00000800 /* local address wasn't specified */ |
696 | #define INP_IN6ADDR_ANY INP_INADDR_ANY |
697 | #define INP_RECVTTL 0x00001000 /* receive incoming IP TTL */ |
698 | #define INP_UDP_NOCKSUM 0x00002000 /* turn off outbound UDP checksum */ |
699 | #define INP_BOUND_IF 0x00004000 /* bind socket to an interface */ |
700 | #endif /* BSD_KERNEL_PRIVATE */ |
701 | |
702 | #define IN6P_IPV6_V6ONLY 0x00008000 /* restrict AF_INET6 socket for v6 */ |
703 | |
704 | #ifdef BSD_KERNEL_PRIVATE |
705 | #define IN6P_PKTINFO 0x00010000 /* receive IP6 dst and I/F */ |
706 | #define IN6P_HOPLIMIT 0x00020000 /* receive hoplimit */ |
707 | #define IN6P_HOPOPTS 0x00040000 /* receive hop-by-hop options */ |
708 | #define IN6P_DSTOPTS 0x00080000 /* receive dst options after rthdr */ |
709 | #define IN6P_RTHDR 0x00100000 /* receive routing header */ |
710 | #define IN6P_RTHDRDSTOPTS 0x00200000 /* receive dstoptions before rthdr */ |
711 | #define IN6P_TCLASS 0x00400000 /* receive traffic class value */ |
712 | #define INP_RECVTOS IN6P_TCLASS /* receive incoming IP TOS */ |
713 | #define IN6P_AUTOFLOWLABEL 0x00800000 /* attach flowlabel automatically */ |
714 | #endif /* BSD_KERNEL_PRIVATE */ |
715 | |
716 | #define IN6P_BINDV6ONLY 0x01000000 /* do not grab IPv4 traffic */ |
717 | |
718 | #ifdef BSD_KERNEL_PRIVATE |
719 | #define IN6P_RFC2292 0x02000000 /* used RFC2292 API on the socket */ |
720 | #define IN6P_MTU 0x04000000 /* receive path MTU for IPv6 */ |
721 | #define INP_PKTINFO 0x08000000 /* rcv and snd PKTINFO for IPv4 */ |
722 | #define INP_FLOW_SUSPENDED 0x10000000 /* flow suspended */ |
723 | #define INP_NO_IFT_CELLULAR 0x20000000 /* do not use cellular interface */ |
724 | #define INP_FLOW_CONTROLLED 0x40000000 /* flow controlled */ |
725 | #define INP_FC_FEEDBACK 0x80000000 /* got interface flow adv feedback */ |
726 | |
727 | #define INP_CONTROLOPTS \ |
728 | (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|INP_RECVIF|INP_RECVTTL| \ |
729 | INP_PKTINFO|IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|IN6P_DSTOPTS| \ |
730 | IN6P_RTHDR|IN6P_RTHDRDSTOPTS|IN6P_TCLASS|IN6P_RFC2292|IN6P_MTU) |
731 | |
732 | #define INP_UNMAPPABLEOPTS \ |
733 | (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|IN6P_AUTOFLOWLABEL) |
734 | |
735 | /* |
736 | * Flags for inp_flags2. |
737 | * |
738 | * Overflowed INP flags; use INP2 prefix to avoid misuse. |
739 | */ |
740 | #define INP2_TIMEWAIT 0x00000001 /* in TIMEWAIT */ |
741 | #define INP2_IN_FCTREE 0x00000002 /* in inp_fc_tree */ |
742 | #define INP2_WANT_APP_POLICY 0x00000004 /* necp app policy check is desired */ |
743 | #define INP2_NO_IFF_EXPENSIVE 0x00000008 /* do not use expensive interface */ |
744 | #define INP2_INHASHLIST 0x00000010 /* pcb is in inp_hash list */ |
745 | #define INP2_AWDL_UNRESTRICTED 0x00000020 /* AWDL restricted mode allowed */ |
746 | #define INP2_KEEPALIVE_OFFLOAD 0x00000040 /* Enable UDP or TCP keepalive offload */ |
747 | #define INP2_INTCOPROC_ALLOWED 0x00000080 /* Allow communication via internal co-processor interfaces */ |
748 | #define INP2_CONNECT_IN_PROGRESS 0x00000100 /* A connect call is in progress, so binds are intermediate steps */ |
749 | #define INP2_CLAT46_FLOW 0x00000200 /* The flow is going to use CLAT46 path */ |
750 | #define INP2_EXTERNAL_PORT 0x00000400 /* The port is registered externally, for NECP listeners */ |
751 | #define INP2_NO_IFF_CONSTRAINED 0x00000800 /* do not use constrained interface */ |
752 | #define INP2_DONTFRAG 0x00001000 /* mark the DF bit in the IP header to avoid fragmentation */ |
753 | #define INP2_SCOPED_BY_NECP 0x00002000 /* NECP scoped the pcb */ |
754 | #define INP2_LOGGING_ENABLED 0x00004000 /* logging enabled for the socket */ |
755 | #define INP2_LOGGED_SUMMARY 0x00008000 /* logged: the final summary */ |
756 | #define INP2_MANAGEMENT_ALLOWED 0x00010000 /* Allow communication over a management interface */ |
757 | #define INP2_MANAGEMENT_CHECKED 0x00020000 /* Checked entitlements for a management interface */ |
758 | #define INP2_BIND_IN_PROGRESS 0x00040000 /* A bind call is in progress */ |
759 | #define INP2_LAST_ROUTE_LOCAL 0x00080000 /* Last used route was local */ |
760 | |
761 | /* |
762 | * Flags passed to in_pcblookup*() functions. |
763 | */ |
764 | #define INPLOOKUP_WILDCARD 1 |
765 | |
766 | #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) |
767 | #define sotoin6pcb(so) sotoinpcb(so) |
768 | |
769 | struct sysctl_req; |
770 | |
771 | extern int ipport_lowfirstauto; |
772 | extern int ipport_lowlastauto; |
773 | extern int ipport_firstauto; |
774 | extern int ipport_lastauto; |
775 | extern int ipport_hifirstauto; |
776 | extern int ipport_hilastauto; |
777 | extern int allow_udp_port_exhaustion; |
778 | #define UDP_RANDOM_PORT_RESERVE 4096 |
779 | |
780 | /* freshly allocated PCB, it's in use */ |
781 | #define INPCB_STATE_INUSE 0x1 |
782 | /* this pcb is sitting in a a cache */ |
783 | #define INPCB_STATE_CACHED 0x2 |
784 | /* should treat as gone, will be garbage collected and freed */ |
785 | #define INPCB_STATE_DEAD 0x3 |
786 | |
787 | /* marked as ready to be garbaged collected, should be treated as not found */ |
788 | #define WNT_STOPUSING 0xffff |
789 | /* that pcb is being acquired, do not recycle this time */ |
790 | #define WNT_ACQUIRE 0x1 |
791 | /* release acquired mode, can be garbage collected when wantcnt is null */ |
792 | #define WNT_RELEASE 0x2 |
793 | |
794 | extern void in_pcbinit(void); |
795 | extern void in_pcbinfo_attach(struct inpcbinfo *); |
796 | extern int in_pcbinfo_detach(struct inpcbinfo *); |
797 | |
798 | /* type of timer to be scheduled by inpcb_gc_sched and inpcb_timer_sched */ |
799 | enum { |
800 | INPCB_TIMER_LAZY = 0x1, |
801 | INPCB_TIMER_FAST, |
802 | INPCB_TIMER_NODELAY |
803 | }; |
804 | extern void inpcb_gc_sched(struct inpcbinfo *, u_int32_t type); |
805 | extern void inpcb_timer_sched(struct inpcbinfo *, u_int32_t type); |
806 | |
807 | extern void in_losing(struct inpcb *); |
808 | extern void in_rtchange(struct inpcb *, int); |
809 | extern int in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *); |
810 | extern int in_pcbbind(struct inpcb *, struct sockaddr *, struct proc *); |
811 | extern int in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *, |
812 | unsigned int, struct ifnet **); |
813 | extern void in_pcbdetach(struct inpcb *); |
814 | extern void in_pcbdispose(struct inpcb *); |
815 | extern void in_pcbdisconnect(struct inpcb *); |
816 | extern int in_pcbinshash(struct inpcb *, int); |
817 | extern int in_pcbladdr(struct inpcb *, struct sockaddr *, struct in_addr *, |
818 | unsigned int, struct ifnet **, int); |
819 | extern struct inpcb *in_pcblookup_local(struct inpcbinfo *, struct in_addr, |
820 | u_int, int); |
821 | extern struct inpcb *in_pcblookup_local_and_cleanup(struct inpcbinfo *, |
822 | struct in_addr, u_int, int); |
823 | extern struct inpcb *in_pcblookup_hash(struct inpcbinfo *, struct in_addr, |
824 | u_int, struct in_addr, u_int, int, struct ifnet *); |
825 | extern int in_pcblookup_hash_exists(struct inpcbinfo *, struct in_addr, |
826 | u_int, struct in_addr, u_int, int, uid_t *, gid_t *, struct ifnet *); |
827 | extern void in_pcbnotifyall(struct inpcbinfo *, struct in_addr, int, |
828 | void (*)(struct inpcb *, int)); |
829 | extern void in_pcbrehash(struct inpcb *); |
830 | extern int in_getpeeraddr(struct socket *, struct sockaddr **); |
831 | extern int in_getsockaddr(struct socket *, struct sockaddr **); |
832 | extern int in_getsockaddr_s(struct socket *, struct sockaddr_in *); |
833 | extern int in_pcb_checkstate(struct inpcb *, int, int); |
834 | extern void in_pcbremlists(struct inpcb *); |
835 | extern void inpcb_to_compat(struct inpcb *, struct inpcb_compat *); |
836 | #if XNU_TARGET_OS_OSX |
837 | extern void inpcb_to_xinpcb64(struct inpcb *, struct xinpcb64 *); |
838 | #endif /* XNU_TARGET_OS_OSX */ |
839 | |
840 | extern int get_pcblist_n(short, struct sysctl_req *, struct inpcbinfo *); |
841 | |
842 | extern void inpcb_get_ports_used(ifnet_t, int, u_int32_t, bitstr_t *, |
843 | struct inpcbinfo *); |
844 | #define INPCB_OPPORTUNISTIC_THROTTLEON 0x0001 |
845 | #define INPCB_OPPORTUNISTIC_SETCMD 0x0002 |
846 | extern uint32_t inpcb_count_opportunistic(unsigned int, struct inpcbinfo *, |
847 | u_int32_t); |
848 | extern uint32_t inpcb_find_anypcb_byaddr(struct ifaddr *, struct inpcbinfo *); |
849 | extern void inp_route_copyout(struct inpcb *, struct route *); |
850 | extern void inp_route_copyin(struct inpcb *, struct route *); |
851 | extern int inp_bindif(struct inpcb *, unsigned int, struct ifnet **); |
852 | extern void inp_set_nocellular(struct inpcb *); |
853 | extern void inp_clear_nocellular(struct inpcb *); |
854 | extern void inp_set_noexpensive(struct inpcb *); |
855 | extern void inp_set_noconstrained(struct inpcb *); |
856 | extern void inp_set_awdl_unrestricted(struct inpcb *); |
857 | extern boolean_t inp_get_awdl_unrestricted(struct inpcb *); |
858 | extern void inp_clear_awdl_unrestricted(struct inpcb *); |
859 | extern void inp_set_intcoproc_allowed(struct inpcb *); |
860 | extern boolean_t inp_get_intcoproc_allowed(struct inpcb *); |
861 | extern void inp_clear_intcoproc_allowed(struct inpcb *); |
862 | extern void inp_set_management_allowed(struct inpcb *); |
863 | extern boolean_t inp_get_management_allowed(struct inpcb *); |
864 | extern void inp_clear_management_allowed(struct inpcb *); |
865 | #if NECP |
866 | extern void inp_update_necp_policy(struct inpcb *, struct sockaddr *, struct sockaddr *, u_int); |
867 | extern void inp_set_want_app_policy(struct inpcb *); |
868 | extern void inp_clear_want_app_policy(struct inpcb *); |
869 | #endif /* NECP */ |
870 | extern u_int32_t inp_calc_flowhash(struct inpcb *); |
871 | extern void inp_reset_fc_state(struct inpcb *); |
872 | extern int inp_set_fc_state(struct inpcb *, int advcode); |
873 | extern void inp_fc_unthrottle_tcp(struct inpcb *); |
874 | extern void inp_fc_throttle_tcp(struct inpcb *inp); |
875 | extern void inp_flowadv(uint32_t); |
876 | extern int inp_flush(struct inpcb *, int); |
877 | extern int inp_findinpcb_procinfo(struct inpcbinfo *, uint32_t, struct so_procinfo *); |
878 | extern void inp_get_soprocinfo(struct inpcb *, struct so_procinfo *); |
879 | extern int inp_update_policy(struct inpcb *); |
880 | extern boolean_t inp_restricted_recv(struct inpcb *, struct ifnet *); |
881 | extern boolean_t inp_restricted_send(struct inpcb *, struct ifnet *); |
882 | extern void inp_incr_sndbytes_total(struct socket *, int); |
883 | extern void inp_decr_sndbytes_total(struct socket *, int); |
884 | extern void inp_count_sndbytes(struct inpcb *, u_int32_t); |
885 | extern void inp_incr_sndbytes_unsent(struct socket *, int32_t); |
886 | extern void inp_decr_sndbytes_unsent(struct socket *, int32_t); |
887 | extern int32_t inp_get_sndbytes_allunsent(struct socket *, u_int32_t); |
888 | extern void inp_decr_sndbytes_allunsent(struct socket *, u_int32_t); |
889 | extern void inp_set_activity_bitmap(struct inpcb *inp); |
890 | extern void inp_get_activity_bitmap(struct inpcb *inp, activity_bitmap_t *b); |
891 | extern void inp_clear_activity_bitmap(struct inpcb *inpb); |
892 | extern void inp_update_last_owner(struct socket *so, struct proc *p, struct proc *ep); |
893 | extern void inp_copy_last_owner(struct socket *so, struct socket *head); |
894 | #if SKYWALK |
895 | extern void inp_update_netns_flags(struct socket *so); |
896 | #endif /* SKYWALK */ |
897 | #endif /* BSD_KERNEL_PRIVATE */ |
898 | #ifdef KERNEL_PRIVATE |
899 | /* exported for PPP */ |
900 | extern void inp_clear_INP_INADDR_ANY(struct socket *); |
901 | extern int inp_limit_companion_link(struct inpcbinfo *pcbinfo, u_int32_t limit); |
902 | extern int inp_recover_companion_link(struct inpcbinfo *pcbinfo); |
903 | extern void in_management_interface_check(void); |
904 | extern void in_pcb_check_management_entitled(struct inpcb *inp); |
905 | extern char *inp_snprintf_tuple(struct inpcb *, char *, size_t); |
906 | #endif /* KERNEL_PRIVATE */ |
907 | #endif /* !_NETINET_IN_PCB_H_ */ |
908 | |