1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #ifndef _INET_IPCLASSIFIER_H
27 #define _INET_IPCLASSIFIER_H
28
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32
33 #include <inet/common.h>
34 #include <inet/ip.h>
35 #include <inet/mi.h>
36 #include <inet/tcp.h>
37 #include <inet/ip6.h>
38 #include <netinet/in.h> /* for IPPROTO_* constants */
39 #include <sys/sdt.h>
40 #include <sys/socket_proto.h>
41 #include <sys/sunddi.h>
42 #include <sys/sunldi.h>
43
44 typedef void (*edesc_rpf)(void *, mblk_t *, void *, ip_recv_attr_t *);
45 struct icmph_s;
46 struct icmp6_hdr;
47 typedef boolean_t (*edesc_vpf)(conn_t *, void *, struct icmph_s *,
48 struct icmp6_hdr *, ip_recv_attr_t *);
49
50 /*
51 * ==============================
52 * = The CONNECTION =
53 * ==============================
54 */
55
56 /*
57 * The connection structure contains the common information/flags/ref needed.
58 * Implementation will keep the connection struct, the layers (with their
59 * respective data for event i.e. tcp_t if event was tcp_input_data) all in one
60 * contiguous memory location.
61 */
62
63 /* Conn Flags */
64 /* Unused 0x00020000 */
65 /* Unused 0x00040000 */
66 #define IPCL_FULLY_BOUND 0x00080000 /* Bound to correct squeue */
67 /* Unused 0x00100000 */
68 /* Unused 0x00200000 */
69 /* Unused 0x00400000 */
70 #define IPCL_CL_LISTENER 0x00800000 /* Cluster listener */
71 /* Unused 0x01000000 */
72 /* Unused 0x02000000 */
73 /* Unused 0x04000000 */
74 /* Unused 0x08000000 */
75 /* Unused 0x10000000 */
76 /* Unused 0x20000000 */
77 #define IPCL_CONNECTED 0x40000000 /* Conn in connected table */
78 #define IPCL_BOUND 0x80000000 /* Conn in bind table */
79
80 /* Flags identifying the type of conn */
81 #define IPCL_TCPCONN 0x00000001 /* From tcp_conn_cache */
82 #define IPCL_SCTPCONN 0x00000002 /* From sctp_conn_cache */
83 #define IPCL_IPCCONN 0x00000004 /* From ip_conn_cache */
84 #define IPCL_UDPCONN 0x00000008 /* From udp_conn_cache */
85 #define IPCL_RAWIPCONN 0x00000010 /* From rawip_conn_cache */
86 #define IPCL_RTSCONN 0x00000020 /* From rts_conn_cache */
87 /* Unused 0x00000040 */
88 #define IPCL_IPTUN 0x00000080 /* iptun module above us */
89
90 #define IPCL_NONSTR 0x00001000 /* A non-STREAMS socket */
91 /* Unused 0x10000000 */
92
93 #define IPCL_REMOVED 0x00000100
94 #define IPCL_REUSED 0x00000200
95
96 #define IPCL_IS_CONNECTED(connp) \
97 ((connp)->conn_flags & IPCL_CONNECTED)
98
99 #define IPCL_IS_BOUND(connp) \
100 ((connp)->conn_flags & IPCL_BOUND)
101
102 /*
103 * Can't use conn_proto since we need to tell difference
104 * between a real TCP socket and a SOCK_RAW, IPPROTO_TCP.
105 */
106 #define IPCL_IS_TCP(connp) \
107 ((connp)->conn_flags & IPCL_TCPCONN)
108
109 #define IPCL_IS_SCTP(connp) \
110 ((connp)->conn_flags & IPCL_SCTPCONN)
111
112 #define IPCL_IS_UDP(connp) \
113 ((connp)->conn_flags & IPCL_UDPCONN)
114
115 #define IPCL_IS_RAWIP(connp) \
116 ((connp)->conn_flags & IPCL_RAWIPCONN)
117
118 #define IPCL_IS_RTS(connp) \
119 ((connp)->conn_flags & IPCL_RTSCONN)
120
121 #define IPCL_IS_IPTUN(connp) \
122 ((connp)->conn_flags & IPCL_IPTUN)
123
124 #define IPCL_IS_NONSTR(connp) ((connp)->conn_flags & IPCL_NONSTR)
125
126 typedef struct connf_s connf_t;
127
128 typedef struct
129 {
130 int ctb_depth;
131 #define CONN_STACK_DEPTH 15
132 pc_t ctb_stack[CONN_STACK_DEPTH];
133 } conn_trace_t;
134
135 typedef struct ip_helper_minor_info_s {
136 dev_t ip_minfo_dev; /* Device */
137 vmem_t *ip_minfo_arena; /* Arena */
138 } ip_helper_minfo_t;
139
140 /*
141 * ip helper stream info
142 */
143 typedef struct ip_helper_stream_info_s {
144 ldi_handle_t iphs_handle;
145 queue_t *iphs_rq;
146 queue_t *iphs_wq;
147 ip_helper_minfo_t *iphs_minfo;
148 } ip_helper_stream_info_t;
149
150 /*
151 * Mandatory Access Control mode, in conn_t's conn_mac_mode field.
152 * CONN_MAC_DEFAULT: strict enforcement of MAC.
153 * CONN_MAC_AWARE: allows communications between unlabeled systems
154 * and privileged daemons
155 * CONN_MAC_IMPLICIT: allows communications without explicit labels
156 * on the wire with privileged daemons.
157 *
158 * CONN_MAC_IMPLICIT is intended specifically for labeled IPsec key management
159 * in networks which don't pass CIPSO-labeled packets.
160 */
161 #define CONN_MAC_DEFAULT 0
162 #define CONN_MAC_AWARE 1
163 #define CONN_MAC_IMPLICIT 2
164
165 /*
166 * conn receive ancillary definition.
167 *
168 * These are the set of socket options that make the receive side
169 * potentially pass up ancillary data items.
170 * We have a union with an integer so that we can quickly check whether
171 * any ancillary data items need to be added.
172 */
173 typedef struct crb_s {
174 union {
175 uint32_t crbu_all;
176 struct {
177 uint32_t
178 crbb_recvdstaddr : 1, /* IP_RECVDSTADDR option */
179 crbb_recvopts : 1, /* IP_RECVOPTS option */
180 crbb_recvif : 1, /* IP_RECVIF option */
181 crbb_recvslla : 1, /* IP_RECVSLLA option */
182
183 crbb_recvttl : 1, /* IP_RECVTTL option */
184 crbb_ip_recvpktinfo : 1, /* IP*_RECVPKTINFO option */
185 crbb_ipv6_recvhoplimit : 1, /* IPV6_RECVHOPLIMIT option */
186 crbb_ipv6_recvhopopts : 1, /* IPV6_RECVHOPOPTS option */
187
188 crbb_ipv6_recvdstopts : 1, /* IPV6_RECVDSTOPTS option */
189 crbb_ipv6_recvrthdr : 1, /* IPV6_RECVRTHDR option */
190 crbb_old_ipv6_recvdstopts : 1, /* old form of IPV6_DSTOPTS */
191 crbb_ipv6_recvrthdrdstopts : 1, /* IPV6_RECVRTHDRDSTOPTS */
192
193 crbb_ipv6_recvtclass : 1, /* IPV6_RECVTCLASS */
194 crbb_recvucred : 1, /* IP_RECVUCRED option */
195 crbb_timestamp : 1; /* SO_TIMESTAMP "socket" option */
196
197 } crbb;
198 } crbu;
199 } crb_t;
200
201 #define crb_all crbu.crbu_all
202 #define crb_recvdstaddr crbu.crbb.crbb_recvdstaddr
203 #define crb_recvopts crbu.crbb.crbb_recvopts
204 #define crb_recvif crbu.crbb.crbb_recvif
205 #define crb_recvslla crbu.crbb.crbb_recvslla
206 #define crb_recvttl crbu.crbb.crbb_recvttl
207 #define crb_ip_recvpktinfo crbu.crbb.crbb_ip_recvpktinfo
208 #define crb_ipv6_recvhoplimit crbu.crbb.crbb_ipv6_recvhoplimit
209 #define crb_ipv6_recvhopopts crbu.crbb.crbb_ipv6_recvhopopts
210 #define crb_ipv6_recvdstopts crbu.crbb.crbb_ipv6_recvdstopts
211 #define crb_ipv6_recvrthdr crbu.crbb.crbb_ipv6_recvrthdr
212 #define crb_old_ipv6_recvdstopts crbu.crbb.crbb_old_ipv6_recvdstopts
213 #define crb_ipv6_recvrthdrdstopts crbu.crbb.crbb_ipv6_recvrthdrdstopts
214 #define crb_ipv6_recvtclass crbu.crbb.crbb_ipv6_recvtclass
215 #define crb_recvucred crbu.crbb.crbb_recvucred
216 #define crb_timestamp crbu.crbb.crbb_timestamp
217
218 /*
219 * The initial fields in the conn_t are setup by the kmem_cache constructor,
220 * and are preserved when it is freed. Fields after that are bzero'ed when
221 * the conn_t is freed.
222 *
223 * Much of the conn_t is protected by conn_lock.
224 *
225 * conn_lock is also used by some ULPs (like UDP and RAWIP) to protect
226 * their state.
227 */
228 struct conn_s {
229 kmutex_t conn_lock;
230 uint32_t conn_ref; /* Reference counter */
231 uint32_t conn_flags; /* Conn Flags */
232
233 union {
234 tcp_t *cp_tcp; /* Pointer to the tcp struct */
235 struct udp_s *cp_udp; /* Pointer to the udp struct */
236 struct icmp_s *cp_icmp; /* Pointer to rawip struct */
237 struct rts_s *cp_rts; /* Pointer to rts struct */
238 struct iptun_s *cp_iptun; /* Pointer to iptun_t */
239 struct sctp_s *cp_sctp; /* For IPCL_SCTPCONN */
240 void *cp_priv;
241 } conn_proto_priv;
242 #define conn_tcp conn_proto_priv.cp_tcp
243 #define conn_udp conn_proto_priv.cp_udp
244 #define conn_icmp conn_proto_priv.cp_icmp
245 #define conn_rts conn_proto_priv.cp_rts
246 #define conn_iptun conn_proto_priv.cp_iptun
247 #define conn_sctp conn_proto_priv.cp_sctp
248 #define conn_priv conn_proto_priv.cp_priv
249
250 kcondvar_t conn_cv;
251 uint8_t conn_proto; /* protocol type */
252
253 edesc_rpf conn_recv; /* Pointer to recv routine */
254 edesc_rpf conn_recvicmp; /* For ICMP error */
255 edesc_vpf conn_verifyicmp; /* Verify ICMP error */
256
257 ip_xmit_attr_t *conn_ixa; /* Options if no ancil data */
258
259 /* Fields after this are bzero'ed when the conn_t is freed. */
260 #define conn_start_clr conn_recv_ancillary
261
262 /* Options for receive-side ancillary data */
263 crb_t conn_recv_ancillary;
264
265 squeue_t *conn_sqp; /* Squeue for processing */
266 uint_t conn_state_flags; /* IP state flags */
267
268 int conn_lingertime; /* linger time (in seconds) */
269
270 unsigned int
271 conn_on_sqp : 1, /* Conn is being processed */
272 conn_linger : 1, /* SO_LINGER state */
273 conn_useloopback : 1, /* SO_USELOOPBACK state */
274 conn_broadcast : 1, /* SO_BROADCAST state */
275
276 conn_reuseaddr : 1, /* SO_REUSEADDR state */
277 conn_keepalive : 1, /* SO_KEEPALIVE state */
278 conn_multi_router : 1, /* Wants all multicast pkts */
279 conn_unspec_src : 1, /* IP_UNSPEC_SRC */
280
281 conn_policy_cached : 1, /* Is policy cached/latched ? */
282 conn_in_enforce_policy : 1, /* Enforce Policy on inbound */
283 conn_out_enforce_policy : 1, /* Enforce Policy on outbound */
284 conn_debug : 1, /* SO_DEBUG */
285
286 conn_ipv6_v6only : 1, /* IPV6_V6ONLY */
287 conn_oobinline : 1, /* SO_OOBINLINE state */
288 conn_dgram_errind : 1, /* SO_DGRAM_ERRIND state */
289 conn_exclbind : 1, /* SO_EXCLBIND state */
290
291 conn_mdt_ok : 1, /* MDT is permitted */
292 conn_allzones : 1, /* SO_ALLZONES */
293 conn_ipv6_recvpathmtu : 1, /* IPV6_RECVPATHMTU */
294 conn_mcbc_bind : 1, /* Bound to multi/broadcast */
295
296 conn_pad_to_bit_31 : 12;
297
298 boolean_t conn_blocked; /* conn is flow-controlled */
299
300 squeue_t *conn_initial_sqp; /* Squeue at open time */
301 squeue_t *conn_final_sqp; /* Squeue after connect */
302 ill_t *conn_dhcpinit_ill; /* IP_DHCPINIT_IF */
303 ipsec_latch_t *conn_latch; /* latched IDS */
304 struct ipsec_policy_s *conn_latch_in_policy; /* latched policy (in) */
305 struct ipsec_action_s *conn_latch_in_action; /* latched action (in) */
306 uint_t conn_bound_if; /* IP*_BOUND_IF */
307 queue_t *conn_rq; /* Read queue */
308 queue_t *conn_wq; /* Write queue */
309 dev_t conn_dev; /* Minor number */
310 vmem_t *conn_minor_arena; /* Minor arena */
311 ip_helper_stream_info_t *conn_helper_info;
312
313 cred_t *conn_cred; /* Credentials */
314 pid_t conn_cpid; /* pid from open/connect */
315 uint64_t conn_open_time; /* time when this was opened */
316
317 connf_t *conn_g_fanout; /* Global Hash bucket head */
318 struct conn_s *conn_g_next; /* Global Hash chain next */
319 struct conn_s *conn_g_prev; /* Global Hash chain prev */
320 struct ipsec_policy_head_s *conn_policy; /* Configured policy */
321 in6_addr_t conn_bound_addr_v6; /* Address in bind() */
322 #define conn_bound_addr_v4 V4_PART_OF_V6(conn_bound_addr_v6)
323 connf_t *conn_fanout; /* Hash bucket we're part of */
324 struct conn_s *conn_next; /* Hash chain next */
325 struct conn_s *conn_prev; /* Hash chain prev */
326
327 struct {
328 in6_addr_t connua_laddr; /* Local address - match */
329 in6_addr_t connua_faddr; /* Remote address */
330 } connua_v6addr;
331 #define conn_laddr_v4 V4_PART_OF_V6(connua_v6addr.connua_laddr)
332 #define conn_faddr_v4 V4_PART_OF_V6(connua_v6addr.connua_faddr)
333 #define conn_laddr_v6 connua_v6addr.connua_laddr
334 #define conn_faddr_v6 connua_v6addr.connua_faddr
335 in6_addr_t conn_saddr_v6; /* Local address - source */
336 #define conn_saddr_v4 V4_PART_OF_V6(conn_saddr_v6)
337
338 union {
339 /* Used for classifier match performance */
340 uint32_t connu_ports2;
341 struct {
342 in_port_t connu_fport; /* Remote port */
343 in_port_t connu_lport; /* Local port */
344 } connu_ports;
345 } u_port;
346 #define conn_fport u_port.connu_ports.connu_fport
347 #define conn_lport u_port.connu_ports.connu_lport
348 #define conn_ports u_port.connu_ports2
349
350 uint_t conn_incoming_ifindex; /* IP{,V6}_BOUND_IF, scopeid */
351 ill_t *conn_oper_pending_ill; /* pending shared ioctl */
352
353 krwlock_t conn_ilg_lock; /* Protects conn_ilg_* */
354 ilg_t *conn_ilg; /* Group memberships */
355
356 kcondvar_t conn_refcv; /* For conn_oper_pending_ill */
357
358 struct conn_s *conn_drain_next; /* Next conn in drain list */
359 struct conn_s *conn_drain_prev; /* Prev conn in drain list */
360 idl_t *conn_idl; /* Ptr to the drain list head */
361 mblk_t *conn_ipsec_opt_mp; /* ipsec option mblk */
362 zoneid_t conn_zoneid; /* zone connection is in */
363 int conn_rtaware; /* RT_AWARE sockopt value */
364 kcondvar_t conn_sq_cv; /* For non-STREAMS socket IO */
365 sock_upcalls_t *conn_upcalls; /* Upcalls to sockfs */
366 sock_upper_handle_t conn_upper_handle; /* Upper handle: sonode * */
367
368 unsigned int
369 conn_mlp_type : 2, /* mlp_type_t; tsol/tndb.h */
370 conn_anon_mlp : 1, /* user wants anon MLP */
371 conn_anon_port : 1, /* user bound anonymously */
372
373 conn_mac_mode : 2, /* normal/loose/implicit MAC */
374 conn_anon_priv_bind : 1, /* *_ANON_PRIV_BIND state */
375 conn_zone_is_global : 1, /* GLOBAL_ZONEID */
376 conn_isvrrp : 1, /* VRRP control socket */
377 conn_spare : 23;
378
379 boolean_t conn_flow_cntrld;
380 netstack_t *conn_netstack; /* Corresponds to a netstack_hold */
381
382 /*
383 * IP format that packets received for this struct should use.
384 * Value can be IP4_VERSION or IPV6_VERSION.
385 * The sending version is encoded using IXAF_IS_IPV4.
386 */
387 ushort_t conn_ipversion;
388
389 /* Written to only once at the time of opening the endpoint */
390 sa_family_t conn_family; /* Family from socket() call */
391 uint_t conn_so_type; /* Type from socket() call */
392
393 uint_t conn_sndbuf; /* SO_SNDBUF state */
394 uint_t conn_rcvbuf; /* SO_RCVBUF state */
395 uint_t conn_wroff; /* Current write offset */
396
397 uint_t conn_sndlowat; /* Send buffer low water mark */
398 uint_t conn_rcvlowat; /* Recv buffer low water mark */
399
400 uint8_t conn_default_ttl; /* Default TTL/hoplimit */
401
402 uint32_t conn_flowinfo; /* Connected flow id and tclass */
403
404 /*
405 * The most recent address for sendto. Initially set to zero
406 * which is always different than then the destination address
407 * since the send interprets zero as the loopback address.
408 */
409 in6_addr_t conn_v6lastdst;
410 #define conn_v4lastdst V4_PART_OF_V6(conn_v6lastdst)
411 ushort_t conn_lastipversion;
412 in_port_t conn_lastdstport;
413 uint32_t conn_lastflowinfo; /* IPv6-only */
414 uint_t conn_lastscopeid; /* IPv6-only */
415 uint_t conn_lastsrcid; /* Only for AF_INET6 */
416 /*
417 * When we are not connected conn_saddr might be unspecified.
418 * We track the source that was used with conn_v6lastdst here.
419 */
420 in6_addr_t conn_v6lastsrc;
421 #define conn_v4lastsrc V4_PART_OF_V6(conn_v6lastsrc)
422
423 /* Templates for transmitting packets */
424 ip_pkt_t conn_xmit_ipp; /* Options if no ancil data */
425
426 /*
427 * Header template - conn_ht_ulp is a pointer into conn_ht_iphc.
428 * Note that ixa_ip_hdr_length indicates the offset of ht_ulp in
429 * ht_iphc
430 *
431 * The header template is maintained for connected endpoints (and
432 * updated when sticky options are changed) and also for the lastdst.
433 * There is no conflict between those usages since SOCK_DGRAM and
434 * SOCK_RAW can not be used to specify a destination address (with
435 * sendto/sendmsg) if the socket has been connected.
436 */
437 uint8_t *conn_ht_iphc; /* Start of IP header */
438 uint_t conn_ht_iphc_allocated; /* Allocated buffer size */
439 uint_t conn_ht_iphc_len; /* IP+ULP size */
440 uint8_t *conn_ht_ulp; /* Upper-layer header */
441 uint_t conn_ht_ulp_len; /* ULP header len */
442
443 /* Checksum to compensate for source routed packets. Host byte order */
444 uint32_t conn_sum;
445
446 uint32_t conn_ioctlref; /* ioctl ref count */
447 #ifdef CONN_DEBUG
448 #define CONN_TRACE_MAX 10
449 int conn_trace_last; /* ndx of last used tracebuf */
450 conn_trace_t conn_trace_buf[CONN_TRACE_MAX];
451 #endif
452 };
453
454 /*
455 * connf_t - connection fanout data.
456 *
457 * The hash tables and their linkage (conn_t.{hashnextp, hashprevp} are
458 * protected by the per-bucket lock. Each conn_t inserted in the list
459 * points back at the connf_t that heads the bucket.
460 */
461 struct connf_s {
462 struct conn_s *connf_head;
463 kmutex_t connf_lock;
464 };
465
466 #define CONN_INC_REF(connp) { \
467 mutex_enter(&(connp)->conn_lock); \
468 DTRACE_PROBE1(conn__inc__ref, conn_t *, connp); \
469 ASSERT(conn_trace_ref(connp)); \
470 (connp)->conn_ref++; \
471 ASSERT((connp)->conn_ref != 0); \
472 mutex_exit(&(connp)->conn_lock); \
473 }
474
475 #define CONN_INC_REF_LOCKED(connp) { \
476 DTRACE_PROBE1(conn__inc__ref, conn_t *, connp); \
477 ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \
478 ASSERT(conn_trace_ref(connp)); \
479 (connp)->conn_ref++; \
480 ASSERT((connp)->conn_ref != 0); \
481 }
482
483 #define CONN_DEC_REF(connp) { \
484 mutex_enter(&(connp)->conn_lock); \
485 DTRACE_PROBE1(conn__dec__ref, conn_t *, connp); \
486 /* \
487 * The squeue framework always does a CONN_DEC_REF after return \
488 * from TCP. Hence the refcnt must be at least 2 if conn_on_sqp \
489 * is B_TRUE and conn_ref is being decremented. This is to \
490 * account for the mblk being currently processed. \
491 */ \
492 if ((connp)->conn_ref == 0 || \
493 ((connp)->conn_ref == 1 && (connp)->conn_on_sqp)) \
494 cmn_err(CE_PANIC, "CONN_DEC_REF: connp(%p) has ref " \
495 "= %d\n", (void *)(connp), (connp)->conn_ref); \
496 ASSERT(conn_untrace_ref(connp)); \
497 (connp)->conn_ref--; \
498 if ((connp)->conn_ref == 0) { \
499 /* Refcnt can't increase again, safe to drop lock */ \
500 mutex_exit(&(connp)->conn_lock); \
501 ipcl_conn_destroy(connp); \
502 } else { \
503 cv_broadcast(&(connp)->conn_cv); \
504 mutex_exit(&(connp)->conn_lock); \
505 } \
506 }
507
508 /*
509 * For use with subsystems within ip which use ALL_ZONES as a wildcard
510 */
511 #define IPCL_ZONEID(connp) \
512 ((connp)->conn_allzones ? ALL_ZONES : (connp)->conn_zoneid)
513
514 /*
515 * For matching between a conn_t and a zoneid.
516 */
517 #define IPCL_ZONE_MATCH(connp, zoneid) \
518 (((connp)->conn_allzones) || \
519 ((zoneid) == ALL_ZONES) || \
520 (connp)->conn_zoneid == (zoneid))
521
522 /*
523 * On a labeled system, we must treat bindings to ports
524 * on shared IP addresses by sockets with MAC exemption
525 * privilege as being in all zones, as there's
526 * otherwise no way to identify the right receiver.
527 */
528
529 #define IPCL_CONNS_MAC(conn1, conn2) \
530 (((conn1)->conn_mac_mode != CONN_MAC_DEFAULT) || \
531 ((conn2)->conn_mac_mode != CONN_MAC_DEFAULT))
532
533 #define IPCL_BIND_ZONE_MATCH(conn1, conn2) \
534 (IPCL_CONNS_MAC(conn1, conn2) || \
535 IPCL_ZONE_MATCH(conn1, conn2->conn_zoneid) || \
536 IPCL_ZONE_MATCH(conn2, conn1->conn_zoneid))
537
538
539 #define _IPCL_V4_MATCH(v6addr, v4addr) \
540 (V4_PART_OF_V6((v6addr)) == (v4addr) && IN6_IS_ADDR_V4MAPPED(&(v6addr)))
541
542 #define _IPCL_V4_MATCH_ANY(addr) \
543 (IN6_IS_ADDR_V4MAPPED_ANY(&(addr)) || IN6_IS_ADDR_UNSPECIFIED(&(addr)))
544
545
546 /*
547 * IPCL_PROTO_MATCH() and IPCL_PROTO_MATCH_V6() only matches conns with
548 * the specified ira_zoneid or conn_allzones by calling conn_wantpacket.
549 */
550 #define IPCL_PROTO_MATCH(connp, ira, ipha) \
551 ((((connp)->conn_laddr_v4 == INADDR_ANY) || \
552 (((connp)->conn_laddr_v4 == ((ipha)->ipha_dst)) && \
553 (((connp)->conn_faddr_v4 == INADDR_ANY) || \
554 ((connp)->conn_faddr_v4 == ((ipha)->ipha_src))))) && \
555 conn_wantpacket((connp), (ira), (ipha)))
556
557 #define IPCL_PROTO_MATCH_V6(connp, ira, ip6h) \
558 ((IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6) || \
559 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &((ip6h)->ip6_dst)) && \
560 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_faddr_v6) || \
561 IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, &((ip6h)->ip6_src))))) && \
562 (conn_wantpacket_v6((connp), (ira), (ip6h))))
563
564 #define IPCL_CONN_HASH(src, ports, ipst) \
565 ((unsigned)(ntohl((src)) ^ ((ports) >> 24) ^ ((ports) >> 16) ^ \
566 ((ports) >> 8) ^ (ports)) % (ipst)->ips_ipcl_conn_fanout_size)
567
568 #define IPCL_CONN_HASH_V6(src, ports, ipst) \
569 IPCL_CONN_HASH(V4_PART_OF_V6((src)), (ports), (ipst))
570
571 #define IPCL_CONN_MATCH(connp, proto, src, dst, ports) \
572 ((connp)->conn_proto == (proto) && \
573 (connp)->conn_ports == (ports) && \
574 _IPCL_V4_MATCH((connp)->conn_faddr_v6, (src)) && \
575 _IPCL_V4_MATCH((connp)->conn_laddr_v6, (dst)) && \
576 !(connp)->conn_ipv6_v6only)
577
578 #define IPCL_CONN_MATCH_V6(connp, proto, src, dst, ports) \
579 ((connp)->conn_proto == (proto) && \
580 (connp)->conn_ports == (ports) && \
581 IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, &(src)) && \
582 IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(dst)))
583
584 #define IPCL_PORT_HASH(port, size) \
585 ((((port) >> 8) ^ (port)) & ((size) - 1))
586
587 #define IPCL_BIND_HASH(lport, ipst) \
588 ((unsigned)(((lport) >> 8) ^ (lport)) % \
589 (ipst)->ips_ipcl_bind_fanout_size)
590
591 #define IPCL_BIND_MATCH(connp, proto, laddr, lport) \
592 ((connp)->conn_proto == (proto) && \
593 (connp)->conn_lport == (lport) && \
594 (_IPCL_V4_MATCH_ANY((connp)->conn_laddr_v6) || \
595 _IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr))) && \
596 !(connp)->conn_ipv6_v6only)
597
598 #define IPCL_BIND_MATCH_V6(connp, proto, laddr, lport) \
599 ((connp)->conn_proto == (proto) && \
600 (connp)->conn_lport == (lport) && \
601 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(laddr)) || \
602 IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6)))
603
604 /*
605 * We compare conn_laddr since it captures both connected and a bind to
606 * a multicast or broadcast address.
607 * The caller needs to match the zoneid and also call conn_wantpacket
608 * for multicast, broadcast, or when conn_incoming_ifindex is set.
609 */
610 #define IPCL_UDP_MATCH(connp, lport, laddr, fport, faddr) \
611 (((connp)->conn_lport == (lport)) && \
612 ((_IPCL_V4_MATCH_ANY((connp)->conn_laddr_v6) || \
613 (_IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr)) && \
614 (_IPCL_V4_MATCH_ANY((connp)->conn_faddr_v6) || \
615 (_IPCL_V4_MATCH((connp)->conn_faddr_v6, (faddr)) && \
616 (connp)->conn_fport == (fport)))))) && \
617 !(connp)->conn_ipv6_v6only)
618
619 /*
620 * We compare conn_laddr since it captures both connected and a bind to
621 * a multicast or broadcast address.
622 * The caller needs to match the zoneid and also call conn_wantpacket_v6
623 * for multicast or when conn_incoming_ifindex is set.
624 */
625 #define IPCL_UDP_MATCH_V6(connp, lport, laddr, fport, faddr) \
626 (((connp)->conn_lport == (lport)) && \
627 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6) || \
628 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(laddr)) && \
629 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_faddr_v6) || \
630 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, &(faddr)) && \
631 (connp)->conn_fport == (fport))))))
632
633 #define IPCL_IPTUN_HASH(laddr, faddr) \
634 ((ntohl(laddr) ^ ((ntohl(faddr) << 24) | (ntohl(faddr) >> 8))) % \
635 ipcl_iptun_fanout_size)
636
637 #define IPCL_IPTUN_HASH_V6(laddr, faddr) \
638 IPCL_IPTUN_HASH((laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \
639 (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3], \
640 (faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \
641 (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3])
642
643 #define IPCL_IPTUN_MATCH(connp, laddr, faddr) \
644 (_IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr)) && \
645 _IPCL_V4_MATCH((connp)->conn_faddr_v6, (faddr)))
646
647 #define IPCL_IPTUN_MATCH_V6(connp, laddr, faddr) \
648 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, (laddr)) && \
649 IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, (faddr)))
650
651 #define IPCL_UDP_HASH(lport, ipst) \
652 IPCL_PORT_HASH(lport, (ipst)->ips_ipcl_udp_fanout_size)
653
654 #define CONN_G_HASH_SIZE 1024
655
656 /* Raw socket hash function. */
657 #define IPCL_RAW_HASH(lport, ipst) \
658 IPCL_PORT_HASH(lport, (ipst)->ips_ipcl_raw_fanout_size)
659
660 /*
661 * This is similar to IPCL_BIND_MATCH except that the local port check
662 * is changed to a wildcard port check.
663 * We compare conn_laddr since it captures both connected and a bind to
664 * a multicast or broadcast address.
665 */
666 #define IPCL_RAW_MATCH(connp, proto, laddr) \
667 ((connp)->conn_proto == (proto) && \
668 (connp)->conn_lport == 0 && \
669 (_IPCL_V4_MATCH_ANY((connp)->conn_laddr_v6) || \
670 _IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr))))
671
672 #define IPCL_RAW_MATCH_V6(connp, proto, laddr) \
673 ((connp)->conn_proto == (proto) && \
674 (connp)->conn_lport == 0 && \
675 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6) || \
676 IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(laddr))))
677
678 /* Function prototypes */
679 extern void ipcl_g_init(void);
680 extern void ipcl_init(ip_stack_t *);
681 extern void ipcl_g_destroy(void);
682 extern void ipcl_destroy(ip_stack_t *);
683 extern conn_t *ipcl_conn_create(uint32_t, int, netstack_t *);
684 extern void ipcl_conn_destroy(conn_t *);
685
686 void ipcl_hash_insert_wildcard(connf_t *, conn_t *);
687 void ipcl_hash_remove(conn_t *);
688 void ipcl_hash_remove_locked(conn_t *connp, connf_t *connfp);
689
690 extern int ipcl_bind_insert(conn_t *);
691 extern int ipcl_bind_insert_v4(conn_t *);
692 extern int ipcl_bind_insert_v6(conn_t *);
693 extern int ipcl_conn_insert(conn_t *);
694 extern int ipcl_conn_insert_v4(conn_t *);
695 extern int ipcl_conn_insert_v6(conn_t *);
696 extern conn_t *ipcl_get_next_conn(connf_t *, conn_t *, uint32_t);
697
698 conn_t *ipcl_classify_v4(mblk_t *, uint8_t, uint_t, ip_recv_attr_t *,
699 ip_stack_t *);
700 conn_t *ipcl_classify_v6(mblk_t *, uint8_t, uint_t, ip_recv_attr_t *,
701 ip_stack_t *);
702 conn_t *ipcl_classify(mblk_t *, ip_recv_attr_t *, ip_stack_t *);
703 conn_t *ipcl_classify_raw(mblk_t *, uint8_t, uint32_t, ipha_t *,
704 ip6_t *, ip_recv_attr_t *, ip_stack_t *);
705 conn_t *ipcl_iptun_classify_v4(ipaddr_t *, ipaddr_t *, ip_stack_t *);
706 conn_t *ipcl_iptun_classify_v6(in6_addr_t *, in6_addr_t *, ip_stack_t *);
707 void ipcl_globalhash_insert(conn_t *);
708 void ipcl_globalhash_remove(conn_t *);
709 void ipcl_walk(pfv_t, void *, ip_stack_t *);
710 conn_t *ipcl_tcp_lookup_reversed_ipv4(ipha_t *, tcpha_t *, int, ip_stack_t *);
711 conn_t *ipcl_tcp_lookup_reversed_ipv6(ip6_t *, tcpha_t *, int, uint_t,
712 ip_stack_t *);
713 conn_t *ipcl_lookup_listener_v4(uint16_t, ipaddr_t, zoneid_t, ip_stack_t *);
714 conn_t *ipcl_lookup_listener_v6(uint16_t, in6_addr_t *, uint_t, zoneid_t,
715 ip_stack_t *);
716 int conn_trace_ref(conn_t *);
717 int conn_untrace_ref(conn_t *);
718 void ipcl_conn_cleanup(conn_t *);
719 extern uint_t conn_recvancillary_size(conn_t *, crb_t, ip_recv_attr_t *,
720 mblk_t *, ip_pkt_t *);
721 extern void conn_recvancillary_add(conn_t *, crb_t, ip_recv_attr_t *,
722 ip_pkt_t *, uchar_t *, uint_t);
723 conn_t *ipcl_conn_tcp_lookup_reversed_ipv4(conn_t *, ipha_t *, tcpha_t *,
724 ip_stack_t *);
725 conn_t *ipcl_conn_tcp_lookup_reversed_ipv6(conn_t *, ip6_t *, tcpha_t *,
726 ip_stack_t *);
727
728 extern int ip_create_helper_stream(conn_t *, ldi_ident_t);
729 extern void ip_free_helper_stream(conn_t *);
730 extern int ip_helper_stream_setup(queue_t *, dev_t *, int, int,
731 cred_t *, boolean_t);
732 extern mblk_t *conn_get_pid_mblk(conn_t *);
733
734 #ifdef __cplusplus
735 }
736 #endif
737
738 #endif /* _INET_IPCLASSIFIER_H */