1/*
2 * Copyright (c) 1982, 1986, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
| 1/*
2 * Copyright (c) 1982, 1986, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
|
30 * $FreeBSD: head/sys/netinet/in_pcb.h 133128 2004-08-04 18:27:55Z rwatson $
| 30 * $FreeBSD: head/sys/netinet/in_pcb.h 133874 2004-08-16 18:32:07Z rwatson $
|
31 */
32
33#ifndef _NETINET_IN_PCB_H_
34#define _NETINET_IN_PCB_H_
35
36#include <sys/queue.h>
37#include <sys/_lock.h>
38#include <sys/_mutex.h>
39
40#include <net/route.h>
41
42#define in6pcb inpcb /* for KAME src sync over BSD*'s */
43#define in6p_sp inp_sp /* for KAME src sync over BSD*'s */
44struct inpcbpolicy;
45
46/*
47 * Common structure pcb for internet protocol implementation.
48 * Here are stored pointers to local and foreign host table
49 * entries, local and foreign socket numbers, and pointers
50 * up (to a socket structure) and down (to a protocol-specific)
51 * control block.
52 */
53LIST_HEAD(inpcbhead, inpcb);
54LIST_HEAD(inpcbporthead, inpcbport);
55typedef u_quad_t inp_gen_t;
56
57/*
58 * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
59 * So, AF_INET6 null laddr is also used as AF_INET null laddr,
60 * by utilize following structure. (At last, same as INRIA)
61 */
62struct in_addr_4in6 {
63 u_int32_t ia46_pad32[3];
64 struct in_addr ia46_addr4;
65};
66
67/*
68 * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553.
69 * in_conninfo has some extra padding to accomplish this.
70 */
71struct in_endpoints {
72 u_int16_t ie_fport; /* foreign port */
73 u_int16_t ie_lport; /* local port */
74 /* protocol dependent part, local and foreign addr */
75 union {
76 /* foreign host table entry */
77 struct in_addr_4in6 ie46_foreign;
78 struct in6_addr ie6_foreign;
79 } ie_dependfaddr;
80 union {
81 /* local host table entry */
82 struct in_addr_4in6 ie46_local;
83 struct in6_addr ie6_local;
84 } ie_dependladdr;
85#define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4
86#define ie_laddr ie_dependladdr.ie46_local.ia46_addr4
87#define ie6_faddr ie_dependfaddr.ie6_foreign
88#define ie6_laddr ie_dependladdr.ie6_local
89};
90
91/*
92 * XXX
93 * the defines for inc_* are hacks and should be changed to direct references
94 */
95struct in_conninfo {
96 u_int8_t inc_flags;
97 u_int8_t inc_len;
98 u_int16_t inc_pad; /* XXX alignment for in_endpoints */
99 /* protocol dependent part */
100 struct in_endpoints inc_ie;
101};
102#define inc_isipv6 inc_flags /* temp compatability */
103#define inc_fport inc_ie.ie_fport
104#define inc_lport inc_ie.ie_lport
105#define inc_faddr inc_ie.ie_faddr
106#define inc_laddr inc_ie.ie_laddr
107#define inc6_faddr inc_ie.ie6_faddr
108#define inc6_laddr inc_ie.ie6_laddr
109
110struct icmp6_filter;
111
112struct inpcb {
113 LIST_ENTRY(inpcb) inp_hash; /* hash list */
114 LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
115 u_int32_t inp_flow;
116
117 /* local and foreign ports, local and foreign addr */
118 struct in_conninfo inp_inc;
119
120 caddr_t inp_ppcb; /* pointer to per-protocol pcb */
121 struct inpcbinfo *inp_pcbinfo; /* PCB list info */
122 struct socket *inp_socket; /* back pointer to socket */
123 /* list for this PCB's local port */
124 struct label *inp_label; /* MAC label */
125 int inp_flags; /* generic IP/datagram flags */
126
127 struct inpcbpolicy *inp_sp; /* for IPSEC */
128 u_char inp_vflag; /* IP version flag (v4/v6) */
129#define INP_IPV4 0x1
130#define INP_IPV6 0x2
131#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */
132#define INP_TIMEWAIT 0x8 /* .. probably doesn't go here */
133#define INP_ONESBCAST 0x10 /* send all-ones broadcast */
134 u_char inp_ip_ttl; /* time to live proto */
135 u_char inp_ip_p; /* protocol proto */
136
137 /* protocol dependent part; options */
138 struct {
139 u_char inp4_ip_tos; /* type of service proto */
140 struct mbuf *inp4_options; /* IP options */
141 struct ip_moptions *inp4_moptions; /* IP multicast options */
142 } inp_depend4;
143#define inp_fport inp_inc.inc_fport
144#define inp_lport inp_inc.inc_lport
145#define inp_faddr inp_inc.inc_faddr
146#define inp_laddr inp_inc.inc_laddr
147#define inp_ip_tos inp_depend4.inp4_ip_tos
148#define inp_options inp_depend4.inp4_options
149#define inp_moptions inp_depend4.inp4_moptions
150 struct {
151 /* IP options */
152 struct mbuf *inp6_options;
153 /* IP6 options for outgoing packets */
154 struct ip6_pktopts *inp6_outputopts;
155 /* IP multicast options */
156 struct ip6_moptions *inp6_moptions;
157 /* ICMPv6 code type filter */
158 struct icmp6_filter *inp6_icmp6filt;
159 /* IPV6_CHECKSUM setsockopt */
160 int inp6_cksum;
161 u_short inp6_ifindex;
162 short inp6_hops;
163 } inp_depend6;
164 LIST_ENTRY(inpcb) inp_portlist;
165 struct inpcbport *inp_phd; /* head of this list */
166 inp_gen_t inp_gencnt; /* generation count of this instance */
167 struct mtx inp_mtx;
168
169#define in6p_faddr inp_inc.inc6_faddr
170#define in6p_laddr inp_inc.inc6_laddr
171#define in6p_ip6_hlim inp_depend6.inp6_hlim
172#define in6p_hops inp_depend6.inp6_hops /* default hop limit */
173#define in6p_ip6_nxt inp_ip_p
174#define in6p_flowinfo inp_flow
175#define in6p_vflag inp_vflag
176#define in6p_options inp_depend6.inp6_options
177#define in6p_outputopts inp_depend6.inp6_outputopts
178#define in6p_moptions inp_depend6.inp6_moptions
179#define in6p_icmp6filt inp_depend6.inp6_icmp6filt
180#define in6p_cksum inp_depend6.inp6_cksum
181#define inp6_ifindex inp_depend6.inp6_ifindex
182#define in6p_flags inp_flags /* for KAME src sync over BSD*'s */
183#define in6p_socket inp_socket /* for KAME src sync over BSD*'s */
184#define in6p_lport inp_lport /* for KAME src sync over BSD*'s */
185#define in6p_fport inp_fport /* for KAME src sync over BSD*'s */
186#define in6p_ppcb inp_ppcb /* for KAME src sync over BSD*'s */
187};
188/*
189 * The range of the generation count, as used in this implementation,
190 * is 9e19. We would have to create 300 billion connections per
191 * second for this number to roll over in a year. This seems sufficiently
192 * unlikely that we simply don't concern ourselves with that possibility.
193 */
194
195/*
196 * Interface exported to userland by various protocols which use
197 * inpcbs. Hack alert -- only define if struct xsocket is in scope.
198 */
199#ifdef _SYS_SOCKETVAR_H_
200struct xinpcb {
201 size_t xi_len; /* length of this structure */
202 struct inpcb xi_inp;
203 struct xsocket xi_socket;
204 u_quad_t xi_alignment_hack;
205};
206
207struct xinpgen {
208 size_t xig_len; /* length of this structure */
209 u_int xig_count; /* number of PCBs at this time */
210 inp_gen_t xig_gen; /* generation count at this time */
211 so_gen_t xig_sogen; /* socket generation count at this time */
212};
213#endif /* _SYS_SOCKETVAR_H_ */
214
215struct inpcbport {
216 LIST_ENTRY(inpcbport) phd_hash;
217 struct inpcbhead phd_pcblist;
218 u_short phd_port;
219};
220
221struct inpcbinfo { /* XXX documentation, prefixes */
222 struct inpcbhead *hashbase;
223 u_long hashmask;
224 struct inpcbporthead *porthashbase;
225 u_long porthashmask;
226 struct inpcbhead *listhead;
227 u_short lastport;
228 u_short lastlow;
229 u_short lasthi;
230 struct uma_zone *ipi_zone; /* zone to allocate pcbs from */
231 u_int ipi_count; /* number of pcbs in this list */
232 u_quad_t ipi_gencnt; /* current generation count */
233 struct mtx ipi_mtx;
234};
235
236/*
237 * NB: We cannot enable assertions when IPv6 is configured as
238 * this code is shared by both IPv4 and IPv6 and IPv6 is
239 * not properly locked.
240 */
241#define INP_LOCK_INIT(inp, d, t) \
242 mtx_init(&(inp)->inp_mtx, (d), (t), MTX_DEF | MTX_RECURSE | MTX_DUPOK)
243#define INP_LOCK_DESTROY(inp) mtx_destroy(&(inp)->inp_mtx)
244#define INP_LOCK(inp) mtx_lock(&(inp)->inp_mtx)
245#define INP_UNLOCK(inp) mtx_unlock(&(inp)->inp_mtx)
246#define INP_LOCK_ASSERT(inp) do { \
247 mtx_assert(&(inp)->inp_mtx, MA_OWNED); \
248 NET_ASSERT_GIANT(); \
249} while (0)
250
251#define INP_INFO_LOCK_INIT(ipi, d) \
252 mtx_init(&(ipi)->ipi_mtx, (d), NULL, MTX_DEF | MTX_RECURSE)
253#define INP_INFO_RLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
254#define INP_INFO_WLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
255#define INP_INFO_RUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
256#define INP_INFO_WUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
257#define INP_INFO_RLOCK_ASSERT(ipi) do { \
258 mtx_assert(&(ipi)->ipi_mtx, MA_OWNED); \
259 NET_ASSERT_GIANT(); \
260} while (0)
261#define INP_INFO_WLOCK_ASSERT(ipi) do { \
262 mtx_assert(&(ipi)->ipi_mtx, MA_OWNED); \
263 NET_ASSERT_GIANT(); \
264} while (0)
265
266#define INP_PCBHASH(faddr, lport, fport, mask) \
267 (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
268#define INP_PCBPORTHASH(lport, mask) \
269 (ntohs((lport)) & (mask))
270
271/* flags in inp_flags: */
272#define INP_RECVOPTS 0x01 /* receive incoming IP options */
273#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
274#define INP_RECVDSTADDR 0x04 /* receive IP dst address */
275#define INP_HDRINCL 0x08 /* user supplies entire IP header */
276#define INP_HIGHPORT 0x10 /* user wants "high" port binding */
277#define INP_LOWPORT 0x20 /* user wants "low" port binding */
278#define INP_ANONPORT 0x40 /* port chosen for user */
279#define INP_RECVIF 0x80 /* receive incoming interface */
280#define INP_MTUDISC 0x100 /* user can do MTU discovery */
281#define INP_FAITH 0x200 /* accept FAITH'ed connections */
282#define INP_RECVTTL 0x400 /* receive incoming IP TTL */
283
284#define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */
285
286#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
287#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
288#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
289#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
290#define IN6P_RTHDR 0x100000 /* receive routing header */
291#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
292#define IN6P_TCLASS 0x400000 /* receive traffic class value */
293#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */
294#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */
295#define IN6P_MTU 0x80000000 /* receive path MTU */
296
297#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
298 INP_RECVIF|INP_RECVTTL|\
299 IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
300 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
301 IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
302 IN6P_MTU)
303#define INP_UNMAPPABLEOPTS (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
304 IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
305
306 /* for KAME src sync over BSD*'s */
307#define IN6P_HIGHPORT INP_HIGHPORT
308#define IN6P_LOWPORT INP_LOWPORT
309#define IN6P_ANONPORT INP_ANONPORT
310#define IN6P_RECVIF INP_RECVIF
311#define IN6P_MTUDISC INP_MTUDISC
312#define IN6P_FAITH INP_FAITH
313#define IN6P_CONTROLOPTS INP_CONTROLOPTS
314 /*
315 * socket AF version is {newer than,or include}
316 * actual datagram AF version
317 */
318
319#define INPLOOKUP_WILDCARD 1
320#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
321#define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */
322
323#define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
324
| 31 */
32
33#ifndef _NETINET_IN_PCB_H_
34#define _NETINET_IN_PCB_H_
35
36#include <sys/queue.h>
37#include <sys/_lock.h>
38#include <sys/_mutex.h>
39
40#include <net/route.h>
41
42#define in6pcb inpcb /* for KAME src sync over BSD*'s */
43#define in6p_sp inp_sp /* for KAME src sync over BSD*'s */
44struct inpcbpolicy;
45
46/*
47 * Common structure pcb for internet protocol implementation.
48 * Here are stored pointers to local and foreign host table
49 * entries, local and foreign socket numbers, and pointers
50 * up (to a socket structure) and down (to a protocol-specific)
51 * control block.
52 */
53LIST_HEAD(inpcbhead, inpcb);
54LIST_HEAD(inpcbporthead, inpcbport);
55typedef u_quad_t inp_gen_t;
56
57/*
58 * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
59 * So, AF_INET6 null laddr is also used as AF_INET null laddr,
60 * by utilize following structure. (At last, same as INRIA)
61 */
62struct in_addr_4in6 {
63 u_int32_t ia46_pad32[3];
64 struct in_addr ia46_addr4;
65};
66
67/*
68 * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553.
69 * in_conninfo has some extra padding to accomplish this.
70 */
71struct in_endpoints {
72 u_int16_t ie_fport; /* foreign port */
73 u_int16_t ie_lport; /* local port */
74 /* protocol dependent part, local and foreign addr */
75 union {
76 /* foreign host table entry */
77 struct in_addr_4in6 ie46_foreign;
78 struct in6_addr ie6_foreign;
79 } ie_dependfaddr;
80 union {
81 /* local host table entry */
82 struct in_addr_4in6 ie46_local;
83 struct in6_addr ie6_local;
84 } ie_dependladdr;
85#define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4
86#define ie_laddr ie_dependladdr.ie46_local.ia46_addr4
87#define ie6_faddr ie_dependfaddr.ie6_foreign
88#define ie6_laddr ie_dependladdr.ie6_local
89};
90
91/*
92 * XXX
93 * the defines for inc_* are hacks and should be changed to direct references
94 */
95struct in_conninfo {
96 u_int8_t inc_flags;
97 u_int8_t inc_len;
98 u_int16_t inc_pad; /* XXX alignment for in_endpoints */
99 /* protocol dependent part */
100 struct in_endpoints inc_ie;
101};
102#define inc_isipv6 inc_flags /* temp compatability */
103#define inc_fport inc_ie.ie_fport
104#define inc_lport inc_ie.ie_lport
105#define inc_faddr inc_ie.ie_faddr
106#define inc_laddr inc_ie.ie_laddr
107#define inc6_faddr inc_ie.ie6_faddr
108#define inc6_laddr inc_ie.ie6_laddr
109
110struct icmp6_filter;
111
112struct inpcb {
113 LIST_ENTRY(inpcb) inp_hash; /* hash list */
114 LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
115 u_int32_t inp_flow;
116
117 /* local and foreign ports, local and foreign addr */
118 struct in_conninfo inp_inc;
119
120 caddr_t inp_ppcb; /* pointer to per-protocol pcb */
121 struct inpcbinfo *inp_pcbinfo; /* PCB list info */
122 struct socket *inp_socket; /* back pointer to socket */
123 /* list for this PCB's local port */
124 struct label *inp_label; /* MAC label */
125 int inp_flags; /* generic IP/datagram flags */
126
127 struct inpcbpolicy *inp_sp; /* for IPSEC */
128 u_char inp_vflag; /* IP version flag (v4/v6) */
129#define INP_IPV4 0x1
130#define INP_IPV6 0x2
131#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */
132#define INP_TIMEWAIT 0x8 /* .. probably doesn't go here */
133#define INP_ONESBCAST 0x10 /* send all-ones broadcast */
134 u_char inp_ip_ttl; /* time to live proto */
135 u_char inp_ip_p; /* protocol proto */
136
137 /* protocol dependent part; options */
138 struct {
139 u_char inp4_ip_tos; /* type of service proto */
140 struct mbuf *inp4_options; /* IP options */
141 struct ip_moptions *inp4_moptions; /* IP multicast options */
142 } inp_depend4;
143#define inp_fport inp_inc.inc_fport
144#define inp_lport inp_inc.inc_lport
145#define inp_faddr inp_inc.inc_faddr
146#define inp_laddr inp_inc.inc_laddr
147#define inp_ip_tos inp_depend4.inp4_ip_tos
148#define inp_options inp_depend4.inp4_options
149#define inp_moptions inp_depend4.inp4_moptions
150 struct {
151 /* IP options */
152 struct mbuf *inp6_options;
153 /* IP6 options for outgoing packets */
154 struct ip6_pktopts *inp6_outputopts;
155 /* IP multicast options */
156 struct ip6_moptions *inp6_moptions;
157 /* ICMPv6 code type filter */
158 struct icmp6_filter *inp6_icmp6filt;
159 /* IPV6_CHECKSUM setsockopt */
160 int inp6_cksum;
161 u_short inp6_ifindex;
162 short inp6_hops;
163 } inp_depend6;
164 LIST_ENTRY(inpcb) inp_portlist;
165 struct inpcbport *inp_phd; /* head of this list */
166 inp_gen_t inp_gencnt; /* generation count of this instance */
167 struct mtx inp_mtx;
168
169#define in6p_faddr inp_inc.inc6_faddr
170#define in6p_laddr inp_inc.inc6_laddr
171#define in6p_ip6_hlim inp_depend6.inp6_hlim
172#define in6p_hops inp_depend6.inp6_hops /* default hop limit */
173#define in6p_ip6_nxt inp_ip_p
174#define in6p_flowinfo inp_flow
175#define in6p_vflag inp_vflag
176#define in6p_options inp_depend6.inp6_options
177#define in6p_outputopts inp_depend6.inp6_outputopts
178#define in6p_moptions inp_depend6.inp6_moptions
179#define in6p_icmp6filt inp_depend6.inp6_icmp6filt
180#define in6p_cksum inp_depend6.inp6_cksum
181#define inp6_ifindex inp_depend6.inp6_ifindex
182#define in6p_flags inp_flags /* for KAME src sync over BSD*'s */
183#define in6p_socket inp_socket /* for KAME src sync over BSD*'s */
184#define in6p_lport inp_lport /* for KAME src sync over BSD*'s */
185#define in6p_fport inp_fport /* for KAME src sync over BSD*'s */
186#define in6p_ppcb inp_ppcb /* for KAME src sync over BSD*'s */
187};
188/*
189 * The range of the generation count, as used in this implementation,
190 * is 9e19. We would have to create 300 billion connections per
191 * second for this number to roll over in a year. This seems sufficiently
192 * unlikely that we simply don't concern ourselves with that possibility.
193 */
194
195/*
196 * Interface exported to userland by various protocols which use
197 * inpcbs. Hack alert -- only define if struct xsocket is in scope.
198 */
199#ifdef _SYS_SOCKETVAR_H_
200struct xinpcb {
201 size_t xi_len; /* length of this structure */
202 struct inpcb xi_inp;
203 struct xsocket xi_socket;
204 u_quad_t xi_alignment_hack;
205};
206
207struct xinpgen {
208 size_t xig_len; /* length of this structure */
209 u_int xig_count; /* number of PCBs at this time */
210 inp_gen_t xig_gen; /* generation count at this time */
211 so_gen_t xig_sogen; /* socket generation count at this time */
212};
213#endif /* _SYS_SOCKETVAR_H_ */
214
215struct inpcbport {
216 LIST_ENTRY(inpcbport) phd_hash;
217 struct inpcbhead phd_pcblist;
218 u_short phd_port;
219};
220
221struct inpcbinfo { /* XXX documentation, prefixes */
222 struct inpcbhead *hashbase;
223 u_long hashmask;
224 struct inpcbporthead *porthashbase;
225 u_long porthashmask;
226 struct inpcbhead *listhead;
227 u_short lastport;
228 u_short lastlow;
229 u_short lasthi;
230 struct uma_zone *ipi_zone; /* zone to allocate pcbs from */
231 u_int ipi_count; /* number of pcbs in this list */
232 u_quad_t ipi_gencnt; /* current generation count */
233 struct mtx ipi_mtx;
234};
235
236/*
237 * NB: We cannot enable assertions when IPv6 is configured as
238 * this code is shared by both IPv4 and IPv6 and IPv6 is
239 * not properly locked.
240 */
241#define INP_LOCK_INIT(inp, d, t) \
242 mtx_init(&(inp)->inp_mtx, (d), (t), MTX_DEF | MTX_RECURSE | MTX_DUPOK)
243#define INP_LOCK_DESTROY(inp) mtx_destroy(&(inp)->inp_mtx)
244#define INP_LOCK(inp) mtx_lock(&(inp)->inp_mtx)
245#define INP_UNLOCK(inp) mtx_unlock(&(inp)->inp_mtx)
246#define INP_LOCK_ASSERT(inp) do { \
247 mtx_assert(&(inp)->inp_mtx, MA_OWNED); \
248 NET_ASSERT_GIANT(); \
249} while (0)
250
251#define INP_INFO_LOCK_INIT(ipi, d) \
252 mtx_init(&(ipi)->ipi_mtx, (d), NULL, MTX_DEF | MTX_RECURSE)
253#define INP_INFO_RLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
254#define INP_INFO_WLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
255#define INP_INFO_RUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
256#define INP_INFO_WUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
257#define INP_INFO_RLOCK_ASSERT(ipi) do { \
258 mtx_assert(&(ipi)->ipi_mtx, MA_OWNED); \
259 NET_ASSERT_GIANT(); \
260} while (0)
261#define INP_INFO_WLOCK_ASSERT(ipi) do { \
262 mtx_assert(&(ipi)->ipi_mtx, MA_OWNED); \
263 NET_ASSERT_GIANT(); \
264} while (0)
265
266#define INP_PCBHASH(faddr, lport, fport, mask) \
267 (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
268#define INP_PCBPORTHASH(lport, mask) \
269 (ntohs((lport)) & (mask))
270
271/* flags in inp_flags: */
272#define INP_RECVOPTS 0x01 /* receive incoming IP options */
273#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
274#define INP_RECVDSTADDR 0x04 /* receive IP dst address */
275#define INP_HDRINCL 0x08 /* user supplies entire IP header */
276#define INP_HIGHPORT 0x10 /* user wants "high" port binding */
277#define INP_LOWPORT 0x20 /* user wants "low" port binding */
278#define INP_ANONPORT 0x40 /* port chosen for user */
279#define INP_RECVIF 0x80 /* receive incoming interface */
280#define INP_MTUDISC 0x100 /* user can do MTU discovery */
281#define INP_FAITH 0x200 /* accept FAITH'ed connections */
282#define INP_RECVTTL 0x400 /* receive incoming IP TTL */
283
284#define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */
285
286#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
287#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
288#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
289#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
290#define IN6P_RTHDR 0x100000 /* receive routing header */
291#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
292#define IN6P_TCLASS 0x400000 /* receive traffic class value */
293#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */
294#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */
295#define IN6P_MTU 0x80000000 /* receive path MTU */
296
297#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
298 INP_RECVIF|INP_RECVTTL|\
299 IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
300 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
301 IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
302 IN6P_MTU)
303#define INP_UNMAPPABLEOPTS (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
304 IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
305
306 /* for KAME src sync over BSD*'s */
307#define IN6P_HIGHPORT INP_HIGHPORT
308#define IN6P_LOWPORT INP_LOWPORT
309#define IN6P_ANONPORT INP_ANONPORT
310#define IN6P_RECVIF INP_RECVIF
311#define IN6P_MTUDISC INP_MTUDISC
312#define IN6P_FAITH INP_FAITH
313#define IN6P_CONTROLOPTS INP_CONTROLOPTS
314 /*
315 * socket AF version is {newer than,or include}
316 * actual datagram AF version
317 */
318
319#define INPLOOKUP_WILDCARD 1
320#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
321#define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */
322
323#define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
324
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325#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af)
| 325#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af)
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326
327#ifdef _KERNEL
328extern int ipport_lowfirstauto;
329extern int ipport_lowlastauto;
330extern int ipport_firstauto;
331extern int ipport_lastauto;
332extern int ipport_hifirstauto;
333extern int ipport_hilastauto;
334
335void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *);
336int in_pcballoc(struct socket *, struct inpcbinfo *, const char *);
337int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *);
338int in_pcbbind_setup(struct inpcb *, struct sockaddr *, in_addr_t *,
339 u_short *, struct ucred *);
340int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *);
341int in_pcbconnect_setup(struct inpcb *, struct sockaddr *, in_addr_t *,
342 u_short *, in_addr_t *, u_short *, struct inpcb **,
343 struct ucred *);
344void in_pcbdetach(struct inpcb *);
345void in_pcbdisconnect(struct inpcb *);
346int in_pcbinshash(struct inpcb *);
347struct inpcb *
348 in_pcblookup_local(struct inpcbinfo *,
349 struct in_addr, u_int, int);
350struct inpcb *
351 in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int,
352 struct in_addr, u_int, int, struct ifnet *);
353void in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr,
354 int, struct inpcb *(*)(struct inpcb *, int));
355void in_pcbrehash(struct inpcb *);
356void in_pcbsetsolabel(struct socket *so);
357int in_setpeeraddr(struct socket *so, struct sockaddr **nam, struct inpcbinfo *pcbinfo);
358int in_setsockaddr(struct socket *so, struct sockaddr **nam, struct inpcbinfo *pcbinfo);
359struct sockaddr *
360 in_sockaddr(in_port_t port, struct in_addr *addr);
361void in_pcbsosetlabel(struct socket *so);
362void in_pcbremlists(struct inpcb *inp);
363#endif /* _KERNEL */
364
365#endif /* !_NETINET_IN_PCB_H_ */
| 326
327#ifdef _KERNEL
328extern int ipport_lowfirstauto;
329extern int ipport_lowlastauto;
330extern int ipport_firstauto;
331extern int ipport_lastauto;
332extern int ipport_hifirstauto;
333extern int ipport_hilastauto;
334
335void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *);
336int in_pcballoc(struct socket *, struct inpcbinfo *, const char *);
337int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *);
338int in_pcbbind_setup(struct inpcb *, struct sockaddr *, in_addr_t *,
339 u_short *, struct ucred *);
340int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *);
341int in_pcbconnect_setup(struct inpcb *, struct sockaddr *, in_addr_t *,
342 u_short *, in_addr_t *, u_short *, struct inpcb **,
343 struct ucred *);
344void in_pcbdetach(struct inpcb *);
345void in_pcbdisconnect(struct inpcb *);
346int in_pcbinshash(struct inpcb *);
347struct inpcb *
348 in_pcblookup_local(struct inpcbinfo *,
349 struct in_addr, u_int, int);
350struct inpcb *
351 in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int,
352 struct in_addr, u_int, int, struct ifnet *);
353void in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr,
354 int, struct inpcb *(*)(struct inpcb *, int));
355void in_pcbrehash(struct inpcb *);
356void in_pcbsetsolabel(struct socket *so);
357int in_setpeeraddr(struct socket *so, struct sockaddr **nam, struct inpcbinfo *pcbinfo);
358int in_setsockaddr(struct socket *so, struct sockaddr **nam, struct inpcbinfo *pcbinfo);
359struct sockaddr *
360 in_sockaddr(in_port_t port, struct in_addr *addr);
361void in_pcbsosetlabel(struct socket *so);
362void in_pcbremlists(struct inpcb *inp);
363#endif /* _KERNEL */
364
365#endif /* !_NETINET_IN_PCB_H_ */
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