1*199767f8SToomas Soome /*-
2*199767f8SToomas Soome * Copyright (c) 1982, 1986, 1990, 1993
3*199767f8SToomas Soome * The Regents of the University of California.
4*199767f8SToomas Soome * Copyright (c) 2010-2011 Juniper Networks, Inc.
5*199767f8SToomas Soome * All rights reserved.
6*199767f8SToomas Soome *
7*199767f8SToomas Soome * Portions of this software were developed by Robert N. M. Watson under
8*199767f8SToomas Soome * contract to Juniper Networks, Inc.
9*199767f8SToomas Soome *
10*199767f8SToomas Soome * Redistribution and use in source and binary forms, with or without
11*199767f8SToomas Soome * modification, are permitted provided that the following conditions
12*199767f8SToomas Soome * are met:
13*199767f8SToomas Soome * 1. Redistributions of source code must retain the above copyright
14*199767f8SToomas Soome * notice, this list of conditions and the following disclaimer.
15*199767f8SToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
16*199767f8SToomas Soome * notice, this list of conditions and the following disclaimer in the
17*199767f8SToomas Soome * documentation and/or other materials provided with the distribution.
18*199767f8SToomas Soome * 4. Neither the name of the University nor the names of its contributors
19*199767f8SToomas Soome * may be used to endorse or promote products derived from this software
20*199767f8SToomas Soome * without specific prior written permission.
21*199767f8SToomas Soome *
22*199767f8SToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23*199767f8SToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24*199767f8SToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25*199767f8SToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26*199767f8SToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27*199767f8SToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28*199767f8SToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29*199767f8SToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30*199767f8SToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31*199767f8SToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32*199767f8SToomas Soome * SUCH DAMAGE.
33*199767f8SToomas Soome *
34*199767f8SToomas Soome * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
35*199767f8SToomas Soome * $FreeBSD$
36*199767f8SToomas Soome */
37*199767f8SToomas Soome
38*199767f8SToomas Soome #ifndef _NETINET_IN_PCB_H_
39*199767f8SToomas Soome #define _NETINET_IN_PCB_H_
40*199767f8SToomas Soome
41*199767f8SToomas Soome #include <sys/queue.h>
42*199767f8SToomas Soome #include <sys/_lock.h>
43*199767f8SToomas Soome #include <sys/_mutex.h>
44*199767f8SToomas Soome #include <sys/_rwlock.h>
45*199767f8SToomas Soome
46*199767f8SToomas Soome #ifdef _KERNEL
47*199767f8SToomas Soome #include <sys/lock.h>
48*199767f8SToomas Soome #include <sys/rwlock.h>
49*199767f8SToomas Soome #include <net/vnet.h>
50*199767f8SToomas Soome #include <vm/uma.h>
51*199767f8SToomas Soome #endif
52*199767f8SToomas Soome
53*199767f8SToomas Soome #define in6pcb inpcb /* for KAME src sync over BSD*'s */
54*199767f8SToomas Soome #define in6p_sp inp_sp /* for KAME src sync over BSD*'s */
55*199767f8SToomas Soome struct inpcbpolicy;
56*199767f8SToomas Soome
57*199767f8SToomas Soome /*
58*199767f8SToomas Soome * struct inpcb is the common protocol control block structure used in most
59*199767f8SToomas Soome * IP transport protocols.
60*199767f8SToomas Soome *
61*199767f8SToomas Soome * Pointers to local and foreign host table entries, local and foreign socket
62*199767f8SToomas Soome * numbers, and pointers up (to a socket structure) and down (to a
63*199767f8SToomas Soome * protocol-specific control block) are stored here.
64*199767f8SToomas Soome */
65*199767f8SToomas Soome LIST_HEAD(inpcbhead, inpcb);
66*199767f8SToomas Soome LIST_HEAD(inpcbporthead, inpcbport);
67*199767f8SToomas Soome typedef u_quad_t inp_gen_t;
68*199767f8SToomas Soome
69*199767f8SToomas Soome /*
70*199767f8SToomas Soome * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
71*199767f8SToomas Soome * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing
72*199767f8SToomas Soome * the following structure.
73*199767f8SToomas Soome */
74*199767f8SToomas Soome struct in_addr_4in6 {
75*199767f8SToomas Soome u_int32_t ia46_pad32[3];
76*199767f8SToomas Soome struct in_addr ia46_addr4;
77*199767f8SToomas Soome };
78*199767f8SToomas Soome
79*199767f8SToomas Soome /*
80*199767f8SToomas Soome * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553. in_conninfo has
81*199767f8SToomas Soome * some extra padding to accomplish this.
82*199767f8SToomas Soome * NOTE 2: tcp_syncache.c uses first 5 32-bit words, which identify fport,
83*199767f8SToomas Soome * lport, faddr to generate hash, so these fields shouldn't be moved.
84*199767f8SToomas Soome */
85*199767f8SToomas Soome struct in_endpoints {
86*199767f8SToomas Soome u_int16_t ie_fport; /* foreign port */
87*199767f8SToomas Soome u_int16_t ie_lport; /* local port */
88*199767f8SToomas Soome /* protocol dependent part, local and foreign addr */
89*199767f8SToomas Soome union {
90*199767f8SToomas Soome /* foreign host table entry */
91*199767f8SToomas Soome struct in_addr_4in6 ie46_foreign;
92*199767f8SToomas Soome struct in6_addr ie6_foreign;
93*199767f8SToomas Soome } ie_dependfaddr;
94*199767f8SToomas Soome union {
95*199767f8SToomas Soome /* local host table entry */
96*199767f8SToomas Soome struct in_addr_4in6 ie46_local;
97*199767f8SToomas Soome struct in6_addr ie6_local;
98*199767f8SToomas Soome } ie_dependladdr;
99*199767f8SToomas Soome u_int32_t ie6_zoneid; /* scope zone id */
100*199767f8SToomas Soome };
101*199767f8SToomas Soome #define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4
102*199767f8SToomas Soome #define ie_laddr ie_dependladdr.ie46_local.ia46_addr4
103*199767f8SToomas Soome #define ie6_faddr ie_dependfaddr.ie6_foreign
104*199767f8SToomas Soome #define ie6_laddr ie_dependladdr.ie6_local
105*199767f8SToomas Soome
106*199767f8SToomas Soome /*
107*199767f8SToomas Soome * XXX The defines for inc_* are hacks and should be changed to direct
108*199767f8SToomas Soome * references.
109*199767f8SToomas Soome */
110*199767f8SToomas Soome struct in_conninfo {
111*199767f8SToomas Soome u_int8_t inc_flags;
112*199767f8SToomas Soome u_int8_t inc_len;
113*199767f8SToomas Soome u_int16_t inc_fibnum; /* XXX was pad, 16 bits is plenty */
114*199767f8SToomas Soome /* protocol dependent part */
115*199767f8SToomas Soome struct in_endpoints inc_ie;
116*199767f8SToomas Soome };
117*199767f8SToomas Soome
118*199767f8SToomas Soome /*
119*199767f8SToomas Soome * Flags for inc_flags.
120*199767f8SToomas Soome */
121*199767f8SToomas Soome #define INC_ISIPV6 0x01
122*199767f8SToomas Soome
123*199767f8SToomas Soome #define inc_isipv6 inc_flags /* temp compatability */
124*199767f8SToomas Soome #define inc_fport inc_ie.ie_fport
125*199767f8SToomas Soome #define inc_lport inc_ie.ie_lport
126*199767f8SToomas Soome #define inc_faddr inc_ie.ie_faddr
127*199767f8SToomas Soome #define inc_laddr inc_ie.ie_laddr
128*199767f8SToomas Soome #define inc6_faddr inc_ie.ie6_faddr
129*199767f8SToomas Soome #define inc6_laddr inc_ie.ie6_laddr
130*199767f8SToomas Soome #define inc6_zoneid inc_ie.ie6_zoneid
131*199767f8SToomas Soome
132*199767f8SToomas Soome struct icmp6_filter;
133*199767f8SToomas Soome
134*199767f8SToomas Soome /*-
135*199767f8SToomas Soome * struct inpcb captures the network layer state for TCP, UDP, and raw IPv4 and
136*199767f8SToomas Soome * IPv6 sockets. In the case of TCP and UDP, further per-connection state is
137*199767f8SToomas Soome * hung off of inp_ppcb most of the time. Almost all fields of struct inpcb
138*199767f8SToomas Soome * are static after creation or protected by a per-inpcb rwlock, inp_lock. A
139*199767f8SToomas Soome * few fields are protected by multiple locks as indicated in the locking notes
140*199767f8SToomas Soome * below. For these fields, all of the listed locks must be write-locked for
141*199767f8SToomas Soome * any modifications. However, these fields can be safely read while any one of
142*199767f8SToomas Soome * the listed locks are read-locked. This model can permit greater concurrency
143*199767f8SToomas Soome * for read operations. For example, connections can be looked up while only
144*199767f8SToomas Soome * holding a read lock on the global pcblist lock. This is important for
145*199767f8SToomas Soome * performance when attempting to find the connection for a packet given its IP
146*199767f8SToomas Soome * and port tuple.
147*199767f8SToomas Soome *
148*199767f8SToomas Soome * One noteworthy exception is that the global pcbinfo lock follows a different
149*199767f8SToomas Soome * set of rules in relation to the inp_list field. Rather than being
150*199767f8SToomas Soome * write-locked for modifications and read-locked for list iterations, it must
151*199767f8SToomas Soome * be read-locked during modifications and write-locked during list iterations.
152*199767f8SToomas Soome * This ensures that the relatively rare global list iterations safely walk a
153*199767f8SToomas Soome * stable snapshot of connections while allowing more common list modifications
154*199767f8SToomas Soome * to safely grab the pcblist lock just while adding or removing a connection
155*199767f8SToomas Soome * from the global list.
156*199767f8SToomas Soome *
157*199767f8SToomas Soome * Key:
158*199767f8SToomas Soome * (c) - Constant after initialization
159*199767f8SToomas Soome * (g) - Protected by the pcbgroup lock
160*199767f8SToomas Soome * (i) - Protected by the inpcb lock
161*199767f8SToomas Soome * (p) - Protected by the pcbinfo lock for the inpcb
162*199767f8SToomas Soome * (l) - Protected by the pcblist lock for the inpcb
163*199767f8SToomas Soome * (h) - Protected by the pcbhash lock for the inpcb
164*199767f8SToomas Soome * (s) - Protected by another subsystem's locks
165*199767f8SToomas Soome * (x) - Undefined locking
166*199767f8SToomas Soome *
167*199767f8SToomas Soome * A few other notes:
168*199767f8SToomas Soome *
169*199767f8SToomas Soome * When a read lock is held, stability of the field is guaranteed; to write
170*199767f8SToomas Soome * to a field, a write lock must generally be held.
171*199767f8SToomas Soome *
172*199767f8SToomas Soome * netinet/netinet6-layer code should not assume that the inp_socket pointer
173*199767f8SToomas Soome * is safe to dereference without inp_lock being held, even for protocols
174*199767f8SToomas Soome * other than TCP (where the inpcb persists during TIMEWAIT even after the
175*199767f8SToomas Soome * socket has been freed), or there may be close(2)-related races.
176*199767f8SToomas Soome *
177*199767f8SToomas Soome * The inp_vflag field is overloaded, and would otherwise ideally be (c).
178*199767f8SToomas Soome *
179*199767f8SToomas Soome * TODO: Currently only the TCP stack is leveraging the global pcbinfo lock
180*199767f8SToomas Soome * read-lock usage during modification, this model can be applied to other
181*199767f8SToomas Soome * protocols (especially SCTP).
182*199767f8SToomas Soome */
183*199767f8SToomas Soome struct inpcb {
184*199767f8SToomas Soome LIST_ENTRY(inpcb) inp_hash; /* (h/i) hash list */
185*199767f8SToomas Soome LIST_ENTRY(inpcb) inp_pcbgrouphash; /* (g/i) hash list */
186*199767f8SToomas Soome LIST_ENTRY(inpcb) inp_list; /* (p/l) list for all PCBs for proto */
187*199767f8SToomas Soome /* (p[w]) for list iteration */
188*199767f8SToomas Soome /* (p[r]/l) for addition/removal */
189*199767f8SToomas Soome void *inp_ppcb; /* (i) pointer to per-protocol pcb */
190*199767f8SToomas Soome struct inpcbinfo *inp_pcbinfo; /* (c) PCB list info */
191*199767f8SToomas Soome struct inpcbgroup *inp_pcbgroup; /* (g/i) PCB group list */
192*199767f8SToomas Soome LIST_ENTRY(inpcb) inp_pcbgroup_wild; /* (g/i/h) group wildcard entry */
193*199767f8SToomas Soome struct socket *inp_socket; /* (i) back pointer to socket */
194*199767f8SToomas Soome struct ucred *inp_cred; /* (c) cache of socket cred */
195*199767f8SToomas Soome u_int32_t inp_flow; /* (i) IPv6 flow information */
196*199767f8SToomas Soome int inp_flags; /* (i) generic IP/datagram flags */
197*199767f8SToomas Soome int inp_flags2; /* (i) generic IP/datagram flags #2*/
198*199767f8SToomas Soome u_char inp_vflag; /* (i) IP version flag (v4/v6) */
199*199767f8SToomas Soome u_char inp_ip_ttl; /* (i) time to live proto */
200*199767f8SToomas Soome u_char inp_ip_p; /* (c) protocol proto */
201*199767f8SToomas Soome u_char inp_ip_minttl; /* (i) minimum TTL or drop */
202*199767f8SToomas Soome uint32_t inp_flowid; /* (x) flow id / queue id */
203*199767f8SToomas Soome u_int inp_refcount; /* (i) refcount */
204*199767f8SToomas Soome void *inp_pspare[5]; /* (x) route caching / general use */
205*199767f8SToomas Soome uint32_t inp_flowtype; /* (x) M_HASHTYPE value */
206*199767f8SToomas Soome uint32_t inp_rss_listen_bucket; /* (x) overridden RSS listen bucket */
207*199767f8SToomas Soome u_int inp_ispare[4]; /* (x) route caching / user cookie /
208*199767f8SToomas Soome * general use */
209*199767f8SToomas Soome
210*199767f8SToomas Soome /* Local and foreign ports, local and foreign addr. */
211*199767f8SToomas Soome struct in_conninfo inp_inc; /* (i) list for PCB's local port */
212*199767f8SToomas Soome
213*199767f8SToomas Soome /* MAC and IPSEC policy information. */
214*199767f8SToomas Soome struct label *inp_label; /* (i) MAC label */
215*199767f8SToomas Soome struct inpcbpolicy *inp_sp; /* (s) for IPSEC */
216*199767f8SToomas Soome
217*199767f8SToomas Soome /* Protocol-dependent part; options. */
218*199767f8SToomas Soome struct {
219*199767f8SToomas Soome u_char inp4_ip_tos; /* (i) type of service proto */
220*199767f8SToomas Soome struct mbuf *inp4_options; /* (i) IP options */
221*199767f8SToomas Soome struct ip_moptions *inp4_moptions; /* (i) IP mcast options */
222*199767f8SToomas Soome } inp_depend4;
223*199767f8SToomas Soome struct {
224*199767f8SToomas Soome /* (i) IP options */
225*199767f8SToomas Soome struct mbuf *inp6_options;
226*199767f8SToomas Soome /* (i) IP6 options for outgoing packets */
227*199767f8SToomas Soome struct ip6_pktopts *inp6_outputopts;
228*199767f8SToomas Soome /* (i) IP multicast options */
229*199767f8SToomas Soome struct ip6_moptions *inp6_moptions;
230*199767f8SToomas Soome /* (i) ICMPv6 code type filter */
231*199767f8SToomas Soome struct icmp6_filter *inp6_icmp6filt;
232*199767f8SToomas Soome /* (i) IPV6_CHECKSUM setsockopt */
233*199767f8SToomas Soome int inp6_cksum;
234*199767f8SToomas Soome short inp6_hops;
235*199767f8SToomas Soome } inp_depend6;
236*199767f8SToomas Soome LIST_ENTRY(inpcb) inp_portlist; /* (i/h) */
237*199767f8SToomas Soome struct inpcbport *inp_phd; /* (i/h) head of this list */
238*199767f8SToomas Soome #define inp_zero_size offsetof(struct inpcb, inp_gencnt)
239*199767f8SToomas Soome inp_gen_t inp_gencnt; /* (c) generation count */
240*199767f8SToomas Soome struct llentry *inp_lle; /* cached L2 information */
241*199767f8SToomas Soome struct rtentry *inp_rt; /* cached L3 information */
242*199767f8SToomas Soome struct rwlock inp_lock;
243*199767f8SToomas Soome };
244*199767f8SToomas Soome #define inp_fport inp_inc.inc_fport
245*199767f8SToomas Soome #define inp_lport inp_inc.inc_lport
246*199767f8SToomas Soome #define inp_faddr inp_inc.inc_faddr
247*199767f8SToomas Soome #define inp_laddr inp_inc.inc_laddr
248*199767f8SToomas Soome #define inp_ip_tos inp_depend4.inp4_ip_tos
249*199767f8SToomas Soome #define inp_options inp_depend4.inp4_options
250*199767f8SToomas Soome #define inp_moptions inp_depend4.inp4_moptions
251*199767f8SToomas Soome
252*199767f8SToomas Soome #define in6p_faddr inp_inc.inc6_faddr
253*199767f8SToomas Soome #define in6p_laddr inp_inc.inc6_laddr
254*199767f8SToomas Soome #define in6p_zoneid inp_inc.inc6_zoneid
255*199767f8SToomas Soome #define in6p_hops inp_depend6.inp6_hops /* default hop limit */
256*199767f8SToomas Soome #define in6p_flowinfo inp_flow
257*199767f8SToomas Soome #define in6p_options inp_depend6.inp6_options
258*199767f8SToomas Soome #define in6p_outputopts inp_depend6.inp6_outputopts
259*199767f8SToomas Soome #define in6p_moptions inp_depend6.inp6_moptions
260*199767f8SToomas Soome #define in6p_icmp6filt inp_depend6.inp6_icmp6filt
261*199767f8SToomas Soome #define in6p_cksum inp_depend6.inp6_cksum
262*199767f8SToomas Soome
263*199767f8SToomas Soome #define inp_vnet inp_pcbinfo->ipi_vnet
264*199767f8SToomas Soome
265*199767f8SToomas Soome /*
266*199767f8SToomas Soome * The range of the generation count, as used in this implementation, is 9e19.
267*199767f8SToomas Soome * We would have to create 300 billion connections per second for this number
268*199767f8SToomas Soome * to roll over in a year. This seems sufficiently unlikely that we simply
269*199767f8SToomas Soome * don't concern ourselves with that possibility.
270*199767f8SToomas Soome */
271*199767f8SToomas Soome
272*199767f8SToomas Soome /*
273*199767f8SToomas Soome * Interface exported to userland by various protocols which use inpcbs. Hack
274*199767f8SToomas Soome * alert -- only define if struct xsocket is in scope.
275*199767f8SToomas Soome */
276*199767f8SToomas Soome #ifdef _SYS_SOCKETVAR_H_
277*199767f8SToomas Soome struct xinpcb {
278*199767f8SToomas Soome size_t xi_len; /* length of this structure */
279*199767f8SToomas Soome struct inpcb xi_inp;
280*199767f8SToomas Soome struct xsocket xi_socket;
281*199767f8SToomas Soome u_quad_t xi_alignment_hack;
282*199767f8SToomas Soome };
283*199767f8SToomas Soome
284*199767f8SToomas Soome struct xinpgen {
285*199767f8SToomas Soome size_t xig_len; /* length of this structure */
286*199767f8SToomas Soome u_int xig_count; /* number of PCBs at this time */
287*199767f8SToomas Soome inp_gen_t xig_gen; /* generation count at this time */
288*199767f8SToomas Soome so_gen_t xig_sogen; /* socket generation count at this time */
289*199767f8SToomas Soome };
290*199767f8SToomas Soome #endif /* _SYS_SOCKETVAR_H_ */
291*199767f8SToomas Soome
292*199767f8SToomas Soome struct inpcbport {
293*199767f8SToomas Soome LIST_ENTRY(inpcbport) phd_hash;
294*199767f8SToomas Soome struct inpcbhead phd_pcblist;
295*199767f8SToomas Soome u_short phd_port;
296*199767f8SToomas Soome };
297*199767f8SToomas Soome
298*199767f8SToomas Soome /*-
299*199767f8SToomas Soome * Global data structure for each high-level protocol (UDP, TCP, ...) in both
300*199767f8SToomas Soome * IPv4 and IPv6. Holds inpcb lists and information for managing them.
301*199767f8SToomas Soome *
302*199767f8SToomas Soome * Each pcbinfo is protected by three locks: ipi_lock, ipi_hash_lock and
303*199767f8SToomas Soome * ipi_list_lock:
304*199767f8SToomas Soome * - ipi_lock covering the global pcb list stability during loop iteration,
305*199767f8SToomas Soome * - ipi_hash_lock covering the hashed lookup tables,
306*199767f8SToomas Soome * - ipi_list_lock covering mutable global fields (such as the global
307*199767f8SToomas Soome * pcb list)
308*199767f8SToomas Soome *
309*199767f8SToomas Soome * The lock order is:
310*199767f8SToomas Soome *
311*199767f8SToomas Soome * ipi_lock (before)
312*199767f8SToomas Soome * inpcb locks (before)
313*199767f8SToomas Soome * ipi_list locks (before)
314*199767f8SToomas Soome * {ipi_hash_lock, pcbgroup locks}
315*199767f8SToomas Soome *
316*199767f8SToomas Soome * Locking key:
317*199767f8SToomas Soome *
318*199767f8SToomas Soome * (c) Constant or nearly constant after initialisation
319*199767f8SToomas Soome * (g) Locked by ipi_lock
320*199767f8SToomas Soome * (l) Locked by ipi_list_lock
321*199767f8SToomas Soome * (h) Read using either ipi_hash_lock or inpcb lock; write requires both
322*199767f8SToomas Soome * (p) Protected by one or more pcbgroup locks
323*199767f8SToomas Soome * (x) Synchronisation properties poorly defined
324*199767f8SToomas Soome */
325*199767f8SToomas Soome struct inpcbinfo {
326*199767f8SToomas Soome /*
327*199767f8SToomas Soome * Global lock protecting full inpcb list traversal
328*199767f8SToomas Soome */
329*199767f8SToomas Soome struct rwlock ipi_lock;
330*199767f8SToomas Soome
331*199767f8SToomas Soome /*
332*199767f8SToomas Soome * Global list of inpcbs on the protocol.
333*199767f8SToomas Soome */
334*199767f8SToomas Soome struct inpcbhead *ipi_listhead; /* (g/l) */
335*199767f8SToomas Soome u_int ipi_count; /* (l) */
336*199767f8SToomas Soome
337*199767f8SToomas Soome /*
338*199767f8SToomas Soome * Generation count -- incremented each time a connection is allocated
339*199767f8SToomas Soome * or freed.
340*199767f8SToomas Soome */
341*199767f8SToomas Soome u_quad_t ipi_gencnt; /* (l) */
342*199767f8SToomas Soome
343*199767f8SToomas Soome /*
344*199767f8SToomas Soome * Fields associated with port lookup and allocation.
345*199767f8SToomas Soome */
346*199767f8SToomas Soome u_short ipi_lastport; /* (x) */
347*199767f8SToomas Soome u_short ipi_lastlow; /* (x) */
348*199767f8SToomas Soome u_short ipi_lasthi; /* (x) */
349*199767f8SToomas Soome
350*199767f8SToomas Soome /*
351*199767f8SToomas Soome * UMA zone from which inpcbs are allocated for this protocol.
352*199767f8SToomas Soome */
353*199767f8SToomas Soome struct uma_zone *ipi_zone; /* (c) */
354*199767f8SToomas Soome
355*199767f8SToomas Soome /*
356*199767f8SToomas Soome * Connection groups associated with this protocol. These fields are
357*199767f8SToomas Soome * constant, but pcbgroup structures themselves are protected by
358*199767f8SToomas Soome * per-pcbgroup locks.
359*199767f8SToomas Soome */
360*199767f8SToomas Soome struct inpcbgroup *ipi_pcbgroups; /* (c) */
361*199767f8SToomas Soome u_int ipi_npcbgroups; /* (c) */
362*199767f8SToomas Soome u_int ipi_hashfields; /* (c) */
363*199767f8SToomas Soome
364*199767f8SToomas Soome /*
365*199767f8SToomas Soome * Global lock protecting non-pcbgroup hash lookup tables.
366*199767f8SToomas Soome */
367*199767f8SToomas Soome struct rwlock ipi_hash_lock;
368*199767f8SToomas Soome
369*199767f8SToomas Soome /*
370*199767f8SToomas Soome * Global hash of inpcbs, hashed by local and foreign addresses and
371*199767f8SToomas Soome * port numbers.
372*199767f8SToomas Soome */
373*199767f8SToomas Soome struct inpcbhead *ipi_hashbase; /* (h) */
374*199767f8SToomas Soome u_long ipi_hashmask; /* (h) */
375*199767f8SToomas Soome
376*199767f8SToomas Soome /*
377*199767f8SToomas Soome * Global hash of inpcbs, hashed by only local port number.
378*199767f8SToomas Soome */
379*199767f8SToomas Soome struct inpcbporthead *ipi_porthashbase; /* (h) */
380*199767f8SToomas Soome u_long ipi_porthashmask; /* (h) */
381*199767f8SToomas Soome
382*199767f8SToomas Soome /*
383*199767f8SToomas Soome * List of wildcard inpcbs for use with pcbgroups. In the past, was
384*199767f8SToomas Soome * per-pcbgroup but is now global. All pcbgroup locks must be held
385*199767f8SToomas Soome * to modify the list, so any is sufficient to read it.
386*199767f8SToomas Soome */
387*199767f8SToomas Soome struct inpcbhead *ipi_wildbase; /* (p) */
388*199767f8SToomas Soome u_long ipi_wildmask; /* (p) */
389*199767f8SToomas Soome
390*199767f8SToomas Soome /*
391*199767f8SToomas Soome * Pointer to network stack instance
392*199767f8SToomas Soome */
393*199767f8SToomas Soome struct vnet *ipi_vnet; /* (c) */
394*199767f8SToomas Soome
395*199767f8SToomas Soome /*
396*199767f8SToomas Soome * general use 2
397*199767f8SToomas Soome */
398*199767f8SToomas Soome void *ipi_pspare[2];
399*199767f8SToomas Soome
400*199767f8SToomas Soome /*
401*199767f8SToomas Soome * Global lock protecting global inpcb list, inpcb count, etc.
402*199767f8SToomas Soome */
403*199767f8SToomas Soome struct rwlock ipi_list_lock;
404*199767f8SToomas Soome };
405*199767f8SToomas Soome
406*199767f8SToomas Soome #ifdef _KERNEL
407*199767f8SToomas Soome /*
408*199767f8SToomas Soome * Connection groups hold sets of connections that have similar CPU/thread
409*199767f8SToomas Soome * affinity. Each connection belongs to exactly one connection group.
410*199767f8SToomas Soome */
411*199767f8SToomas Soome struct inpcbgroup {
412*199767f8SToomas Soome /*
413*199767f8SToomas Soome * Per-connection group hash of inpcbs, hashed by local and foreign
414*199767f8SToomas Soome * addresses and port numbers.
415*199767f8SToomas Soome */
416*199767f8SToomas Soome struct inpcbhead *ipg_hashbase; /* (c) */
417*199767f8SToomas Soome u_long ipg_hashmask; /* (c) */
418*199767f8SToomas Soome
419*199767f8SToomas Soome /*
420*199767f8SToomas Soome * Notional affinity of this pcbgroup.
421*199767f8SToomas Soome */
422*199767f8SToomas Soome u_int ipg_cpu; /* (p) */
423*199767f8SToomas Soome
424*199767f8SToomas Soome /*
425*199767f8SToomas Soome * Per-connection group lock, not to be confused with ipi_lock.
426*199767f8SToomas Soome * Protects the hash table hung off the group, but also the global
427*199767f8SToomas Soome * wildcard list in inpcbinfo.
428*199767f8SToomas Soome */
429*199767f8SToomas Soome struct mtx ipg_lock;
430*199767f8SToomas Soome } __aligned(CACHE_LINE_SIZE);
431*199767f8SToomas Soome
432*199767f8SToomas Soome #define INP_LOCK_INIT(inp, d, t) \
433*199767f8SToomas Soome rw_init_flags(&(inp)->inp_lock, (t), RW_RECURSE | RW_DUPOK)
434*199767f8SToomas Soome #define INP_LOCK_DESTROY(inp) rw_destroy(&(inp)->inp_lock)
435*199767f8SToomas Soome #define INP_RLOCK(inp) rw_rlock(&(inp)->inp_lock)
436*199767f8SToomas Soome #define INP_WLOCK(inp) rw_wlock(&(inp)->inp_lock)
437*199767f8SToomas Soome #define INP_TRY_RLOCK(inp) rw_try_rlock(&(inp)->inp_lock)
438*199767f8SToomas Soome #define INP_TRY_WLOCK(inp) rw_try_wlock(&(inp)->inp_lock)
439*199767f8SToomas Soome #define INP_RUNLOCK(inp) rw_runlock(&(inp)->inp_lock)
440*199767f8SToomas Soome #define INP_WUNLOCK(inp) rw_wunlock(&(inp)->inp_lock)
441*199767f8SToomas Soome #define INP_TRY_UPGRADE(inp) rw_try_upgrade(&(inp)->inp_lock)
442*199767f8SToomas Soome #define INP_DOWNGRADE(inp) rw_downgrade(&(inp)->inp_lock)
443*199767f8SToomas Soome #define INP_WLOCKED(inp) rw_wowned(&(inp)->inp_lock)
444*199767f8SToomas Soome #define INP_LOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_LOCKED)
445*199767f8SToomas Soome #define INP_RLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_RLOCKED)
446*199767f8SToomas Soome #define INP_WLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_WLOCKED)
447*199767f8SToomas Soome #define INP_UNLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_UNLOCKED)
448*199767f8SToomas Soome
449*199767f8SToomas Soome /*
450*199767f8SToomas Soome * These locking functions are for inpcb consumers outside of sys/netinet,
451*199767f8SToomas Soome * more specifically, they were added for the benefit of TOE drivers. The
452*199767f8SToomas Soome * macros are reserved for use by the stack.
453*199767f8SToomas Soome */
454*199767f8SToomas Soome void inp_wlock(struct inpcb *);
455*199767f8SToomas Soome void inp_wunlock(struct inpcb *);
456*199767f8SToomas Soome void inp_rlock(struct inpcb *);
457*199767f8SToomas Soome void inp_runlock(struct inpcb *);
458*199767f8SToomas Soome
459*199767f8SToomas Soome #ifdef INVARIANTS
460*199767f8SToomas Soome void inp_lock_assert(struct inpcb *);
461*199767f8SToomas Soome void inp_unlock_assert(struct inpcb *);
462*199767f8SToomas Soome #else
463*199767f8SToomas Soome static __inline void
inp_lock_assert(struct inpcb * inp __unused)464*199767f8SToomas Soome inp_lock_assert(struct inpcb *inp __unused)
465*199767f8SToomas Soome {
466*199767f8SToomas Soome }
467*199767f8SToomas Soome
468*199767f8SToomas Soome static __inline void
inp_unlock_assert(struct inpcb * inp __unused)469*199767f8SToomas Soome inp_unlock_assert(struct inpcb *inp __unused)
470*199767f8SToomas Soome {
471*199767f8SToomas Soome }
472*199767f8SToomas Soome
473*199767f8SToomas Soome #endif
474*199767f8SToomas Soome
475*199767f8SToomas Soome void inp_apply_all(void (*func)(struct inpcb *, void *), void *arg);
476*199767f8SToomas Soome int inp_ip_tos_get(const struct inpcb *inp);
477*199767f8SToomas Soome void inp_ip_tos_set(struct inpcb *inp, int val);
478*199767f8SToomas Soome struct socket *
479*199767f8SToomas Soome inp_inpcbtosocket(struct inpcb *inp);
480*199767f8SToomas Soome struct tcpcb *
481*199767f8SToomas Soome inp_inpcbtotcpcb(struct inpcb *inp);
482*199767f8SToomas Soome void inp_4tuple_get(struct inpcb *inp, uint32_t *laddr, uint16_t *lp,
483*199767f8SToomas Soome uint32_t *faddr, uint16_t *fp);
484*199767f8SToomas Soome short inp_so_options(const struct inpcb *inp);
485*199767f8SToomas Soome
486*199767f8SToomas Soome #endif /* _KERNEL */
487*199767f8SToomas Soome
488*199767f8SToomas Soome #define INP_INFO_LOCK_INIT(ipi, d) \
489*199767f8SToomas Soome rw_init_flags(&(ipi)->ipi_lock, (d), RW_RECURSE)
490*199767f8SToomas Soome #define INP_INFO_LOCK_DESTROY(ipi) rw_destroy(&(ipi)->ipi_lock)
491*199767f8SToomas Soome #define INP_INFO_RLOCK(ipi) rw_rlock(&(ipi)->ipi_lock)
492*199767f8SToomas Soome #define INP_INFO_WLOCK(ipi) rw_wlock(&(ipi)->ipi_lock)
493*199767f8SToomas Soome #define INP_INFO_TRY_RLOCK(ipi) rw_try_rlock(&(ipi)->ipi_lock)
494*199767f8SToomas Soome #define INP_INFO_TRY_WLOCK(ipi) rw_try_wlock(&(ipi)->ipi_lock)
495*199767f8SToomas Soome #define INP_INFO_TRY_UPGRADE(ipi) rw_try_upgrade(&(ipi)->ipi_lock)
496*199767f8SToomas Soome #define INP_INFO_WLOCKED(ipi) rw_wowned(&(ipi)->ipi_lock)
497*199767f8SToomas Soome #define INP_INFO_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_lock)
498*199767f8SToomas Soome #define INP_INFO_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_lock)
499*199767f8SToomas Soome #define INP_INFO_LOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_LOCKED)
500*199767f8SToomas Soome #define INP_INFO_RLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_RLOCKED)
501*199767f8SToomas Soome #define INP_INFO_WLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_WLOCKED)
502*199767f8SToomas Soome #define INP_INFO_UNLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_UNLOCKED)
503*199767f8SToomas Soome
504*199767f8SToomas Soome #define INP_LIST_LOCK_INIT(ipi, d) \
505*199767f8SToomas Soome rw_init_flags(&(ipi)->ipi_list_lock, (d), 0)
506*199767f8SToomas Soome #define INP_LIST_LOCK_DESTROY(ipi) rw_destroy(&(ipi)->ipi_list_lock)
507*199767f8SToomas Soome #define INP_LIST_RLOCK(ipi) rw_rlock(&(ipi)->ipi_list_lock)
508*199767f8SToomas Soome #define INP_LIST_WLOCK(ipi) rw_wlock(&(ipi)->ipi_list_lock)
509*199767f8SToomas Soome #define INP_LIST_TRY_RLOCK(ipi) rw_try_rlock(&(ipi)->ipi_list_lock)
510*199767f8SToomas Soome #define INP_LIST_TRY_WLOCK(ipi) rw_try_wlock(&(ipi)->ipi_list_lock)
511*199767f8SToomas Soome #define INP_LIST_TRY_UPGRADE(ipi) rw_try_upgrade(&(ipi)->ipi_list_lock)
512*199767f8SToomas Soome #define INP_LIST_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_list_lock)
513*199767f8SToomas Soome #define INP_LIST_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_list_lock)
514*199767f8SToomas Soome #define INP_LIST_LOCK_ASSERT(ipi) \
515*199767f8SToomas Soome rw_assert(&(ipi)->ipi_list_lock, RA_LOCKED)
516*199767f8SToomas Soome #define INP_LIST_RLOCK_ASSERT(ipi) \
517*199767f8SToomas Soome rw_assert(&(ipi)->ipi_list_lock, RA_RLOCKED)
518*199767f8SToomas Soome #define INP_LIST_WLOCK_ASSERT(ipi) \
519*199767f8SToomas Soome rw_assert(&(ipi)->ipi_list_lock, RA_WLOCKED)
520*199767f8SToomas Soome #define INP_LIST_UNLOCK_ASSERT(ipi) \
521*199767f8SToomas Soome rw_assert(&(ipi)->ipi_list_lock, RA_UNLOCKED)
522*199767f8SToomas Soome
523*199767f8SToomas Soome #define INP_HASH_LOCK_INIT(ipi, d) \
524*199767f8SToomas Soome rw_init_flags(&(ipi)->ipi_hash_lock, (d), 0)
525*199767f8SToomas Soome #define INP_HASH_LOCK_DESTROY(ipi) rw_destroy(&(ipi)->ipi_hash_lock)
526*199767f8SToomas Soome #define INP_HASH_RLOCK(ipi) rw_rlock(&(ipi)->ipi_hash_lock)
527*199767f8SToomas Soome #define INP_HASH_WLOCK(ipi) rw_wlock(&(ipi)->ipi_hash_lock)
528*199767f8SToomas Soome #define INP_HASH_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_hash_lock)
529*199767f8SToomas Soome #define INP_HASH_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_hash_lock)
530*199767f8SToomas Soome #define INP_HASH_LOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_hash_lock, \
531*199767f8SToomas Soome RA_LOCKED)
532*199767f8SToomas Soome #define INP_HASH_WLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_hash_lock, \
533*199767f8SToomas Soome RA_WLOCKED)
534*199767f8SToomas Soome
535*199767f8SToomas Soome #define INP_GROUP_LOCK_INIT(ipg, d) mtx_init(&(ipg)->ipg_lock, (d), NULL, \
536*199767f8SToomas Soome MTX_DEF | MTX_DUPOK)
537*199767f8SToomas Soome #define INP_GROUP_LOCK_DESTROY(ipg) mtx_destroy(&(ipg)->ipg_lock)
538*199767f8SToomas Soome
539*199767f8SToomas Soome #define INP_GROUP_LOCK(ipg) mtx_lock(&(ipg)->ipg_lock)
540*199767f8SToomas Soome #define INP_GROUP_LOCK_ASSERT(ipg) mtx_assert(&(ipg)->ipg_lock, MA_OWNED)
541*199767f8SToomas Soome #define INP_GROUP_UNLOCK(ipg) mtx_unlock(&(ipg)->ipg_lock)
542*199767f8SToomas Soome
543*199767f8SToomas Soome #define INP_PCBHASH(faddr, lport, fport, mask) \
544*199767f8SToomas Soome (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
545*199767f8SToomas Soome #define INP_PCBPORTHASH(lport, mask) \
546*199767f8SToomas Soome (ntohs((lport)) & (mask))
547*199767f8SToomas Soome #define INP6_PCBHASHKEY(faddr) ((faddr)->s6_addr32[3])
548*199767f8SToomas Soome
549*199767f8SToomas Soome /*
550*199767f8SToomas Soome * Flags for inp_vflags -- historically version flags only
551*199767f8SToomas Soome */
552*199767f8SToomas Soome #define INP_IPV4 0x1
553*199767f8SToomas Soome #define INP_IPV6 0x2
554*199767f8SToomas Soome #define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */
555*199767f8SToomas Soome
556*199767f8SToomas Soome /*
557*199767f8SToomas Soome * Flags for inp_flags.
558*199767f8SToomas Soome */
559*199767f8SToomas Soome #define INP_RECVOPTS 0x00000001 /* receive incoming IP options */
560*199767f8SToomas Soome #define INP_RECVRETOPTS 0x00000002 /* receive IP options for reply */
561*199767f8SToomas Soome #define INP_RECVDSTADDR 0x00000004 /* receive IP dst address */
562*199767f8SToomas Soome #define INP_HDRINCL 0x00000008 /* user supplies entire IP header */
563*199767f8SToomas Soome #define INP_HIGHPORT 0x00000010 /* user wants "high" port binding */
564*199767f8SToomas Soome #define INP_LOWPORT 0x00000020 /* user wants "low" port binding */
565*199767f8SToomas Soome #define INP_ANONPORT 0x00000040 /* port chosen for user */
566*199767f8SToomas Soome #define INP_RECVIF 0x00000080 /* receive incoming interface */
567*199767f8SToomas Soome #define INP_MTUDISC 0x00000100 /* user can do MTU discovery */
568*199767f8SToomas Soome /* 0x000200 unused: was INP_FAITH */
569*199767f8SToomas Soome #define INP_RECVTTL 0x00000400 /* receive incoming IP TTL */
570*199767f8SToomas Soome #define INP_DONTFRAG 0x00000800 /* don't fragment packet */
571*199767f8SToomas Soome #define INP_BINDANY 0x00001000 /* allow bind to any address */
572*199767f8SToomas Soome #define INP_INHASHLIST 0x00002000 /* in_pcbinshash() has been called */
573*199767f8SToomas Soome #define INP_RECVTOS 0x00004000 /* receive incoming IP TOS */
574*199767f8SToomas Soome #define IN6P_IPV6_V6ONLY 0x00008000 /* restrict AF_INET6 socket for v6 */
575*199767f8SToomas Soome #define IN6P_PKTINFO 0x00010000 /* receive IP6 dst and I/F */
576*199767f8SToomas Soome #define IN6P_HOPLIMIT 0x00020000 /* receive hoplimit */
577*199767f8SToomas Soome #define IN6P_HOPOPTS 0x00040000 /* receive hop-by-hop options */
578*199767f8SToomas Soome #define IN6P_DSTOPTS 0x00080000 /* receive dst options after rthdr */
579*199767f8SToomas Soome #define IN6P_RTHDR 0x00100000 /* receive routing header */
580*199767f8SToomas Soome #define IN6P_RTHDRDSTOPTS 0x00200000 /* receive dstoptions before rthdr */
581*199767f8SToomas Soome #define IN6P_TCLASS 0x00400000 /* receive traffic class value */
582*199767f8SToomas Soome #define IN6P_AUTOFLOWLABEL 0x00800000 /* attach flowlabel automatically */
583*199767f8SToomas Soome #define INP_TIMEWAIT 0x01000000 /* in TIMEWAIT, ppcb is tcptw */
584*199767f8SToomas Soome #define INP_ONESBCAST 0x02000000 /* send all-ones broadcast */
585*199767f8SToomas Soome #define INP_DROPPED 0x04000000 /* protocol drop flag */
586*199767f8SToomas Soome #define INP_SOCKREF 0x08000000 /* strong socket reference */
587*199767f8SToomas Soome #define INP_RESERVED_0 0x10000000 /* reserved field */
588*199767f8SToomas Soome #define INP_RESERVED_1 0x20000000 /* reserved field */
589*199767f8SToomas Soome #define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */
590*199767f8SToomas Soome #define IN6P_MTU 0x80000000 /* receive path MTU */
591*199767f8SToomas Soome
592*199767f8SToomas Soome #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
593*199767f8SToomas Soome INP_RECVIF|INP_RECVTTL|INP_RECVTOS|\
594*199767f8SToomas Soome IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
595*199767f8SToomas Soome IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
596*199767f8SToomas Soome IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
597*199767f8SToomas Soome IN6P_MTU)
598*199767f8SToomas Soome
599*199767f8SToomas Soome /*
600*199767f8SToomas Soome * Flags for inp_flags2.
601*199767f8SToomas Soome */
602*199767f8SToomas Soome #define INP_LLE_VALID 0x00000001 /* cached lle is valid */
603*199767f8SToomas Soome #define INP_RT_VALID 0x00000002 /* cached rtentry is valid */
604*199767f8SToomas Soome #define INP_PCBGROUPWILD 0x00000004 /* in pcbgroup wildcard list */
605*199767f8SToomas Soome #define INP_REUSEPORT 0x00000008 /* SO_REUSEPORT option is set */
606*199767f8SToomas Soome #define INP_FREED 0x00000010 /* inp itself is not valid */
607*199767f8SToomas Soome #define INP_REUSEADDR 0x00000020 /* SO_REUSEADDR option is set */
608*199767f8SToomas Soome #define INP_BINDMULTI 0x00000040 /* IP_BINDMULTI option is set */
609*199767f8SToomas Soome #define INP_RSS_BUCKET_SET 0x00000080 /* IP_RSS_LISTEN_BUCKET is set */
610*199767f8SToomas Soome #define INP_RECVFLOWID 0x00000100 /* populate recv datagram with flow info */
611*199767f8SToomas Soome #define INP_RECVRSSBUCKETID 0x00000200 /* populate recv datagram with bucket id */
612*199767f8SToomas Soome
613*199767f8SToomas Soome /*
614*199767f8SToomas Soome * Flags passed to in_pcblookup*() functions.
615*199767f8SToomas Soome */
616*199767f8SToomas Soome #define INPLOOKUP_WILDCARD 0x00000001 /* Allow wildcard sockets. */
617*199767f8SToomas Soome #define INPLOOKUP_RLOCKPCB 0x00000002 /* Return inpcb read-locked. */
618*199767f8SToomas Soome #define INPLOOKUP_WLOCKPCB 0x00000004 /* Return inpcb write-locked. */
619*199767f8SToomas Soome
620*199767f8SToomas Soome #define INPLOOKUP_MASK (INPLOOKUP_WILDCARD | INPLOOKUP_RLOCKPCB | \
621*199767f8SToomas Soome INPLOOKUP_WLOCKPCB)
622*199767f8SToomas Soome
623*199767f8SToomas Soome #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
624*199767f8SToomas Soome #define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */
625*199767f8SToomas Soome
626*199767f8SToomas Soome #define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
627*199767f8SToomas Soome
628*199767f8SToomas Soome #define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af)
629*199767f8SToomas Soome
630*199767f8SToomas Soome /*
631*199767f8SToomas Soome * Constants for pcbinfo.ipi_hashfields.
632*199767f8SToomas Soome */
633*199767f8SToomas Soome #define IPI_HASHFIELDS_NONE 0
634*199767f8SToomas Soome #define IPI_HASHFIELDS_2TUPLE 1
635*199767f8SToomas Soome #define IPI_HASHFIELDS_4TUPLE 2
636*199767f8SToomas Soome
637*199767f8SToomas Soome #ifdef _KERNEL
638*199767f8SToomas Soome VNET_DECLARE(int, ipport_reservedhigh);
639*199767f8SToomas Soome VNET_DECLARE(int, ipport_reservedlow);
640*199767f8SToomas Soome VNET_DECLARE(int, ipport_lowfirstauto);
641*199767f8SToomas Soome VNET_DECLARE(int, ipport_lowlastauto);
642*199767f8SToomas Soome VNET_DECLARE(int, ipport_firstauto);
643*199767f8SToomas Soome VNET_DECLARE(int, ipport_lastauto);
644*199767f8SToomas Soome VNET_DECLARE(int, ipport_hifirstauto);
645*199767f8SToomas Soome VNET_DECLARE(int, ipport_hilastauto);
646*199767f8SToomas Soome VNET_DECLARE(int, ipport_randomized);
647*199767f8SToomas Soome VNET_DECLARE(int, ipport_randomcps);
648*199767f8SToomas Soome VNET_DECLARE(int, ipport_randomtime);
649*199767f8SToomas Soome VNET_DECLARE(int, ipport_stoprandom);
650*199767f8SToomas Soome VNET_DECLARE(int, ipport_tcpallocs);
651*199767f8SToomas Soome
652*199767f8SToomas Soome #define V_ipport_reservedhigh VNET(ipport_reservedhigh)
653*199767f8SToomas Soome #define V_ipport_reservedlow VNET(ipport_reservedlow)
654*199767f8SToomas Soome #define V_ipport_lowfirstauto VNET(ipport_lowfirstauto)
655*199767f8SToomas Soome #define V_ipport_lowlastauto VNET(ipport_lowlastauto)
656*199767f8SToomas Soome #define V_ipport_firstauto VNET(ipport_firstauto)
657*199767f8SToomas Soome #define V_ipport_lastauto VNET(ipport_lastauto)
658*199767f8SToomas Soome #define V_ipport_hifirstauto VNET(ipport_hifirstauto)
659*199767f8SToomas Soome #define V_ipport_hilastauto VNET(ipport_hilastauto)
660*199767f8SToomas Soome #define V_ipport_randomized VNET(ipport_randomized)
661*199767f8SToomas Soome #define V_ipport_randomcps VNET(ipport_randomcps)
662*199767f8SToomas Soome #define V_ipport_randomtime VNET(ipport_randomtime)
663*199767f8SToomas Soome #define V_ipport_stoprandom VNET(ipport_stoprandom)
664*199767f8SToomas Soome #define V_ipport_tcpallocs VNET(ipport_tcpallocs)
665*199767f8SToomas Soome
666*199767f8SToomas Soome void in_pcbinfo_destroy(struct inpcbinfo *);
667*199767f8SToomas Soome void in_pcbinfo_init(struct inpcbinfo *, const char *, struct inpcbhead *,
668*199767f8SToomas Soome int, int, char *, uma_init, uma_fini, uint32_t, u_int);
669*199767f8SToomas Soome
670*199767f8SToomas Soome int in_pcbbind_check_bindmulti(const struct inpcb *ni,
671*199767f8SToomas Soome const struct inpcb *oi);
672*199767f8SToomas Soome
673*199767f8SToomas Soome struct inpcbgroup *
674*199767f8SToomas Soome in_pcbgroup_byhash(struct inpcbinfo *, u_int, uint32_t);
675*199767f8SToomas Soome struct inpcbgroup *
676*199767f8SToomas Soome in_pcbgroup_byinpcb(struct inpcb *);
677*199767f8SToomas Soome struct inpcbgroup *
678*199767f8SToomas Soome in_pcbgroup_bytuple(struct inpcbinfo *, struct in_addr, u_short,
679*199767f8SToomas Soome struct in_addr, u_short);
680*199767f8SToomas Soome void in_pcbgroup_destroy(struct inpcbinfo *);
681*199767f8SToomas Soome int in_pcbgroup_enabled(struct inpcbinfo *);
682*199767f8SToomas Soome void in_pcbgroup_init(struct inpcbinfo *, u_int, int);
683*199767f8SToomas Soome void in_pcbgroup_remove(struct inpcb *);
684*199767f8SToomas Soome void in_pcbgroup_update(struct inpcb *);
685*199767f8SToomas Soome void in_pcbgroup_update_mbuf(struct inpcb *, struct mbuf *);
686*199767f8SToomas Soome
687*199767f8SToomas Soome void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *);
688*199767f8SToomas Soome int in_pcballoc(struct socket *, struct inpcbinfo *);
689*199767f8SToomas Soome int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *);
690*199767f8SToomas Soome int in_pcb_lport(struct inpcb *, struct in_addr *, u_short *,
691*199767f8SToomas Soome struct ucred *, int);
692*199767f8SToomas Soome int in_pcbbind_setup(struct inpcb *, struct sockaddr *, in_addr_t *,
693*199767f8SToomas Soome u_short *, struct ucred *);
694*199767f8SToomas Soome int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *);
695*199767f8SToomas Soome int in_pcbconnect_mbuf(struct inpcb *, struct sockaddr *, struct ucred *,
696*199767f8SToomas Soome struct mbuf *);
697*199767f8SToomas Soome int in_pcbconnect_setup(struct inpcb *, struct sockaddr *, in_addr_t *,
698*199767f8SToomas Soome u_short *, in_addr_t *, u_short *, struct inpcb **,
699*199767f8SToomas Soome struct ucred *);
700*199767f8SToomas Soome void in_pcbdetach(struct inpcb *);
701*199767f8SToomas Soome void in_pcbdisconnect(struct inpcb *);
702*199767f8SToomas Soome void in_pcbdrop(struct inpcb *);
703*199767f8SToomas Soome void in_pcbfree(struct inpcb *);
704*199767f8SToomas Soome int in_pcbinshash(struct inpcb *);
705*199767f8SToomas Soome int in_pcbinshash_nopcbgroup(struct inpcb *);
706*199767f8SToomas Soome int in_pcbladdr(struct inpcb *, struct in_addr *, struct in_addr *,
707*199767f8SToomas Soome struct ucred *);
708*199767f8SToomas Soome struct inpcb *
709*199767f8SToomas Soome in_pcblookup_local(struct inpcbinfo *,
710*199767f8SToomas Soome struct in_addr, u_short, int, struct ucred *);
711*199767f8SToomas Soome struct inpcb *
712*199767f8SToomas Soome in_pcblookup(struct inpcbinfo *, struct in_addr, u_int,
713*199767f8SToomas Soome struct in_addr, u_int, int, struct ifnet *);
714*199767f8SToomas Soome struct inpcb *
715*199767f8SToomas Soome in_pcblookup_mbuf(struct inpcbinfo *, struct in_addr, u_int,
716*199767f8SToomas Soome struct in_addr, u_int, int, struct ifnet *, struct mbuf *);
717*199767f8SToomas Soome void in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr,
718*199767f8SToomas Soome int, struct inpcb *(*)(struct inpcb *, int));
719*199767f8SToomas Soome void in_pcbref(struct inpcb *);
720*199767f8SToomas Soome void in_pcbrehash(struct inpcb *);
721*199767f8SToomas Soome void in_pcbrehash_mbuf(struct inpcb *, struct mbuf *);
722*199767f8SToomas Soome int in_pcbrele(struct inpcb *);
723*199767f8SToomas Soome int in_pcbrele_rlocked(struct inpcb *);
724*199767f8SToomas Soome int in_pcbrele_wlocked(struct inpcb *);
725*199767f8SToomas Soome void in_pcbsetsolabel(struct socket *so);
726*199767f8SToomas Soome int in_getpeeraddr(struct socket *so, struct sockaddr **nam);
727*199767f8SToomas Soome int in_getsockaddr(struct socket *so, struct sockaddr **nam);
728*199767f8SToomas Soome struct sockaddr *
729*199767f8SToomas Soome in_sockaddr(in_port_t port, struct in_addr *addr);
730*199767f8SToomas Soome void in_pcbsosetlabel(struct socket *so);
731*199767f8SToomas Soome #endif /* _KERNEL */
732*199767f8SToomas Soome
733*199767f8SToomas Soome #endif /* !_NETINET_IN_PCB_H_ */
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