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 * Copyright 2015 Joyent, Inc.
25 */
26
27 #ifndef _INET_IPCLASSIFIER_H
28 #define _INET_IPCLASSIFIER_H
29
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33
34 #include <inet/common.h>
35 #include <inet/ip.h>
36 #include <inet/mi.h>
37 #include <inet/tcp.h>
38 #include <inet/ip6.h>
39 #include <netinet/in.h> /* for IPPROTO_* constants */
40 #include <sys/sdt.h>
41 #include <sys/socket_proto.h>
42 #include <sys/sunddi.h>
43 #include <sys/sunldi.h>
44
45 typedef void (*edesc_rpf)(void *, mblk_t *, void *, ip_recv_attr_t *);
46 struct icmph_s;
47 struct icmp6_hdr;
48 typedef boolean_t (*edesc_vpf)(conn_t *, void *, struct icmph_s *,
49 struct icmp6_hdr *, ip_recv_attr_t *);
50
51 /*
52 * ==============================
53 * = The CONNECTION =
54 * ==============================
55 */
56
57 /*
58 * The connection structure contains the common information/flags/ref needed.
59 * Implementation will keep the connection struct, the layers (with their
60 * respective data for event i.e. tcp_t if event was tcp_input_data) all in one
61 * contiguous memory location.
62 */
63
64 /* Conn Flags */
65 /* Unused 0x00020000 */
66 /* Unused 0x00040000 */
67 #define IPCL_FULLY_BOUND 0x00080000 /* Bound to correct squeue */
68 /* Unused 0x00100000 */
69 /* Unused 0x00200000 */
70 /* Unused 0x00400000 */
71 #define IPCL_CL_LISTENER 0x00800000 /* Cluster listener */
72 /* Unused 0x01000000 */
73 /* Unused 0x02000000 */
74 /* Unused 0x04000000 */
75 /* Unused 0x08000000 */
76 /* Unused 0x10000000 */
77 /* Unused 0x20000000 */
78 #define IPCL_CONNECTED 0x40000000 /* Conn in connected table */
79 #define IPCL_BOUND 0x80000000 /* Conn in bind table */
80
81 /* Flags identifying the type of conn */
82 #define IPCL_TCPCONN 0x00000001 /* From tcp_conn_cache */
83 #define IPCL_SCTPCONN 0x00000002 /* From sctp_conn_cache */
84 #define IPCL_IPCCONN 0x00000004 /* From ip_conn_cache */
85 #define IPCL_UDPCONN 0x00000008 /* From udp_conn_cache */
86 #define IPCL_RAWIPCONN 0x00000010 /* From rawip_conn_cache */
87 #define IPCL_RTSCONN 0x00000020 /* From rts_conn_cache */
88 /* Unused 0x00000040 */
89 #define IPCL_IPTUN 0x00000080 /* iptun module above us */
90
91 #define IPCL_NONSTR 0x00001000 /* A non-STREAMS socket */
92 /* Unused 0x10000000 */
93
94 #define IPCL_REMOVED 0x00000100
95 #define IPCL_REUSED 0x00000200
96
97 #define IPCL_IS_CONNECTED(connp) \
98 ((connp)->conn_flags & IPCL_CONNECTED)
99
100 #define IPCL_IS_BOUND(connp) \
101 ((connp)->conn_flags & IPCL_BOUND)
102
103 /*
104 * Can't use conn_proto since we need to tell difference
105 * between a real TCP socket and a SOCK_RAW, IPPROTO_TCP.
106 */
107 #define IPCL_IS_TCP(connp) \
108 ((connp)->conn_flags & IPCL_TCPCONN)
109
110 #define IPCL_IS_SCTP(connp) \
111 ((connp)->conn_flags & IPCL_SCTPCONN)
112
113 #define IPCL_IS_UDP(connp) \
114 ((connp)->conn_flags & IPCL_UDPCONN)
115
116 #define IPCL_IS_RAWIP(connp) \
117 ((connp)->conn_flags & IPCL_RAWIPCONN)
118
119 #define IPCL_IS_RTS(connp) \
120 ((connp)->conn_flags & IPCL_RTSCONN)
121
122 #define IPCL_IS_IPTUN(connp) \
123 ((connp)->conn_flags & IPCL_IPTUN)
124
125 #define IPCL_IS_NONSTR(connp) ((connp)->conn_flags & IPCL_NONSTR)
126
127 typedef struct connf_s connf_t;
128
129 typedef struct
130 {
131 int ctb_depth;
132 #define CONN_STACK_DEPTH 15
133 pc_t ctb_stack[CONN_STACK_DEPTH];
134 } conn_trace_t;
135
136 typedef struct ip_helper_minor_info_s {
137 dev_t ip_minfo_dev; /* Device */
138 vmem_t *ip_minfo_arena; /* Arena */
139 } ip_helper_minfo_t;
140
141 /*
142 * ip helper stream info
143 */
144 typedef struct ip_helper_stream_info_s {
145 ldi_handle_t iphs_handle;
146 queue_t *iphs_rq;
147 queue_t *iphs_wq;
148 ip_helper_minfo_t *iphs_minfo;
149 } ip_helper_stream_info_t;
150
151 /*
152 * Mandatory Access Control mode, in conn_t's conn_mac_mode field.
153 * CONN_MAC_DEFAULT: strict enforcement of MAC.
154 * CONN_MAC_AWARE: allows communications between unlabeled systems
155 * and privileged daemons
156 * CONN_MAC_IMPLICIT: allows communications without explicit labels
157 * on the wire with privileged daemons.
158 *
159 * CONN_MAC_IMPLICIT is intended specifically for labeled IPsec key management
160 * in networks which don't pass CIPSO-labeled packets.
161 */
162 #define CONN_MAC_DEFAULT 0
163 #define CONN_MAC_AWARE 1
164 #define CONN_MAC_IMPLICIT 2
165
166 /*
167 * conn receive ancillary definition.
168 *
169 * These are the set of socket options that make the receive side
170 * potentially pass up ancillary data items.
171 * We have a union with an integer so that we can quickly check whether
172 * any ancillary data items need to be added.
173 */
174 typedef struct crb_s {
175 union {
176 uint32_t crbu_all;
177 struct {
178 uint32_t
179 crbb_recvdstaddr : 1, /* IP_RECVDSTADDR option */
180 crbb_recvopts : 1, /* IP_RECVOPTS option */
181 crbb_recvif : 1, /* IP_RECVIF option */
182 crbb_recvslla : 1, /* IP_RECVSLLA option */
183
184 crbb_recvttl : 1, /* IP_RECVTTL option */
185 crbb_ip_recvpktinfo : 1, /* IP*_RECVPKTINFO option */
186 crbb_ipv6_recvhoplimit : 1, /* IPV6_RECVHOPLIMIT option */
187 crbb_ipv6_recvhopopts : 1, /* IPV6_RECVHOPOPTS option */
188
189 crbb_ipv6_recvdstopts : 1, /* IPV6_RECVDSTOPTS option */
190 crbb_ipv6_recvrthdr : 1, /* IPV6_RECVRTHDR option */
191 crbb_old_ipv6_recvdstopts : 1, /* old form of IPV6_DSTOPTS */
192 crbb_ipv6_recvrthdrdstopts : 1, /* IPV6_RECVRTHDRDSTOPTS */
193
194 crbb_ipv6_recvtclass : 1, /* IPV6_RECVTCLASS */
195 crbb_recvucred : 1, /* IP_RECVUCRED option */
196 crbb_timestamp : 1; /* SO_TIMESTAMP "socket" option */
197
198 } crbb;
199 } crbu;
200 } crb_t;
201
202 #define crb_all crbu.crbu_all
203 #define crb_recvdstaddr crbu.crbb.crbb_recvdstaddr
204 #define crb_recvopts crbu.crbb.crbb_recvopts
205 #define crb_recvif crbu.crbb.crbb_recvif
206 #define crb_recvslla crbu.crbb.crbb_recvslla
207 #define crb_recvttl crbu.crbb.crbb_recvttl
208 #define crb_ip_recvpktinfo crbu.crbb.crbb_ip_recvpktinfo
209 #define crb_ipv6_recvhoplimit crbu.crbb.crbb_ipv6_recvhoplimit
210 #define crb_ipv6_recvhopopts crbu.crbb.crbb_ipv6_recvhopopts
211 #define crb_ipv6_recvdstopts crbu.crbb.crbb_ipv6_recvdstopts
212 #define crb_ipv6_recvrthdr crbu.crbb.crbb_ipv6_recvrthdr
213 #define crb_old_ipv6_recvdstopts crbu.crbb.crbb_old_ipv6_recvdstopts
214 #define crb_ipv6_recvrthdrdstopts crbu.crbb.crbb_ipv6_recvrthdrdstopts
215 #define crb_ipv6_recvtclass crbu.crbb.crbb_ipv6_recvtclass
216 #define crb_recvucred crbu.crbb.crbb_recvucred
217 #define crb_timestamp crbu.crbb.crbb_timestamp
218
219 /*
220 * The initial fields in the conn_t are setup by the kmem_cache constructor,
221 * and are preserved when it is freed. Fields after that are bzero'ed when
222 * the conn_t is freed.
223 *
224 * Much of the conn_t is protected by conn_lock.
225 *
226 * conn_lock is also used by some ULPs (like UDP and RAWIP) to protect
227 * their state.
228 */
229 struct conn_s {
230 kmutex_t conn_lock;
231 uint32_t conn_ref; /* Reference counter */
232 uint32_t conn_flags; /* Conn Flags */
233
234 union {
235 tcp_t *cp_tcp; /* Pointer to the tcp struct */
236 struct udp_s *cp_udp; /* Pointer to the udp struct */
237 struct icmp_s *cp_icmp; /* Pointer to rawip struct */
238 struct rts_s *cp_rts; /* Pointer to rts struct */
239 struct iptun_s *cp_iptun; /* Pointer to iptun_t */
240 struct sctp_s *cp_sctp; /* For IPCL_SCTPCONN */
241 void *cp_priv;
242 } conn_proto_priv;
243 #define conn_tcp conn_proto_priv.cp_tcp
244 #define conn_udp conn_proto_priv.cp_udp
245 #define conn_icmp conn_proto_priv.cp_icmp
246 #define conn_rts conn_proto_priv.cp_rts
247 #define conn_iptun conn_proto_priv.cp_iptun
248 #define conn_sctp conn_proto_priv.cp_sctp
249 #define conn_priv conn_proto_priv.cp_priv
250
251 kcondvar_t conn_cv;
252 uint8_t conn_proto; /* protocol type */
253
254 edesc_rpf conn_recv; /* Pointer to recv routine */
255 edesc_rpf conn_recvicmp; /* For ICMP error */
256 edesc_vpf conn_verifyicmp; /* Verify ICMP error */
257
258 ip_xmit_attr_t *conn_ixa; /* Options if no ancil data */
259
260 /* Fields after this are bzero'ed when the conn_t is freed. */
261 #define conn_start_clr conn_recv_ancillary
262
263 /* Options for receive-side ancillary data */
264 crb_t conn_recv_ancillary;
265
266 squeue_t *conn_sqp; /* Squeue for processing */
267 uint_t conn_state_flags; /* IP state flags */
268
269 int conn_lingertime; /* linger time (in seconds) */
270
271 unsigned int
272 conn_on_sqp : 1, /* Conn is being processed */
273 conn_linger : 1, /* SO_LINGER state */
274 conn_useloopback : 1, /* SO_USELOOPBACK state */
275 conn_broadcast : 1, /* SO_BROADCAST state */
276
277 conn_reuseaddr : 1, /* SO_REUSEADDR state */
278 conn_keepalive : 1, /* SO_KEEPALIVE state */
279 conn_multi_router : 1, /* Wants all multicast pkts */
280 conn_unspec_src : 1, /* IP_UNSPEC_SRC */
281
282 conn_policy_cached : 1, /* Is policy cached/latched ? */
283 conn_in_enforce_policy : 1, /* Enforce Policy on inbound */
284 conn_out_enforce_policy : 1, /* Enforce Policy on outbound */
285 conn_debug : 1, /* SO_DEBUG */
286
287 conn_ipv6_v6only : 1, /* IPV6_V6ONLY */
288 conn_oobinline : 1, /* SO_OOBINLINE state */
289 conn_dgram_errind : 1, /* SO_DGRAM_ERRIND state */
290 conn_exclbind : 1, /* SO_EXCLBIND state */
291
292 conn_mdt_ok : 1, /* MDT is permitted */
293 conn_allzones : 1, /* SO_ALLZONES */
294 conn_ipv6_recvpathmtu : 1, /* IPV6_RECVPATHMTU */
295 conn_mcbc_bind : 1, /* Bound to multi/broadcast */
296
297 conn_reuseport : 1, /* SO_REUSEPORT state */
298 conn_pad_to_bit_31 : 11;
299
300 boolean_t conn_blocked; /* conn is flow-controlled */
301
302 squeue_t *conn_initial_sqp; /* Squeue at open time */
303 squeue_t *conn_final_sqp; /* Squeue after connect */
304 ill_t *conn_dhcpinit_ill; /* IP_DHCPINIT_IF */
305 ipsec_latch_t *conn_latch; /* latched IDS */
306 struct ipsec_policy_s *conn_latch_in_policy; /* latched policy (in) */
307 struct ipsec_action_s *conn_latch_in_action; /* latched action (in) */
308 uint_t conn_bound_if; /* IP*_BOUND_IF */
309 queue_t *conn_rq; /* Read queue */
310 queue_t *conn_wq; /* Write queue */
311 dev_t conn_dev; /* Minor number */
312 vmem_t *conn_minor_arena; /* Minor arena */
313 ip_helper_stream_info_t *conn_helper_info;
314
315 cred_t *conn_cred; /* Credentials */
316 pid_t conn_cpid; /* pid from open/connect */
317 uint64_t conn_open_time; /* time when this was opened */
318
319 connf_t *conn_g_fanout; /* Global Hash bucket head */
320 struct conn_s *conn_g_next; /* Global Hash chain next */
321 struct conn_s *conn_g_prev; /* Global Hash chain prev */
322 struct ipsec_policy_head_s *conn_policy; /* Configured policy */
323 in6_addr_t conn_bound_addr_v6; /* Address in bind() */
324 #define conn_bound_addr_v4 V4_PART_OF_V6(conn_bound_addr_v6)
325 connf_t *conn_fanout; /* Hash bucket we're part of */
326 struct conn_s *conn_next; /* Hash chain next */
327 struct conn_s *conn_prev; /* Hash chain prev */
328
329 struct {
330 in6_addr_t connua_laddr; /* Local address - match */
331 in6_addr_t connua_faddr; /* Remote address */
332 } connua_v6addr;
333 #define conn_laddr_v4 V4_PART_OF_V6(connua_v6addr.connua_laddr)
334 #define conn_faddr_v4 V4_PART_OF_V6(connua_v6addr.connua_faddr)
335 #define conn_laddr_v6 connua_v6addr.connua_laddr
336 #define conn_faddr_v6 connua_v6addr.connua_faddr
337 in6_addr_t conn_saddr_v6; /* Local address - source */
338 #define conn_saddr_v4 V4_PART_OF_V6(conn_saddr_v6)
339
340 union {
341 /* Used for classifier match performance */
342 uint32_t connu_ports2;
343 struct {
344 in_port_t connu_fport; /* Remote port */
345 in_port_t connu_lport; /* Local port */
346 } connu_ports;
347 } u_port;
348 #define conn_fport u_port.connu_ports.connu_fport
349 #define conn_lport u_port.connu_ports.connu_lport
350 #define conn_ports u_port.connu_ports2
351
352 uint_t conn_incoming_ifindex; /* IP{,V6}_BOUND_IF, scopeid */
353 ill_t *conn_oper_pending_ill; /* pending shared ioctl */
354
355 krwlock_t conn_ilg_lock; /* Protects conn_ilg_* */
356 ilg_t *conn_ilg; /* Group memberships */
357
358 kcondvar_t conn_refcv; /* For conn_oper_pending_ill */
359
360 struct conn_s *conn_drain_next; /* Next conn in drain list */
361 struct conn_s *conn_drain_prev; /* Prev conn in drain list */
362 idl_t *conn_idl; /* Ptr to the drain list head */
363 mblk_t *conn_ipsec_opt_mp; /* ipsec option mblk */
364 zoneid_t conn_zoneid; /* zone connection is in */
365 int conn_rtaware; /* RT_AWARE sockopt value */
366 kcondvar_t conn_sq_cv; /* For non-STREAMS socket IO */
367 sock_upcalls_t *conn_upcalls; /* Upcalls to sockfs */
368 sock_upper_handle_t conn_upper_handle; /* Upper handle: sonode * */
369
370 unsigned int
371 conn_mlp_type : 2, /* mlp_type_t; tsol/tndb.h */
372 conn_anon_mlp : 1, /* user wants anon MLP */
373 conn_anon_port : 1, /* user bound anonymously */
374
375 conn_mac_mode : 2, /* normal/loose/implicit MAC */
376 conn_anon_priv_bind : 1, /* *_ANON_PRIV_BIND state */
377 conn_zone_is_global : 1, /* GLOBAL_ZONEID */
378 conn_isvrrp : 1, /* VRRP control socket */
379 conn_spare : 23;
380
381 boolean_t conn_flow_cntrld;
382 netstack_t *conn_netstack; /* Corresponds to a netstack_hold */
383
384 /*
385 * IP format that packets received for this struct should use.
386 * Value can be IP4_VERSION or IPV6_VERSION.
387 * The sending version is encoded using IXAF_IS_IPV4.
388 */
389 ushort_t conn_ipversion;
390
391 /* Written to only once at the time of opening the endpoint */
392 sa_family_t conn_family; /* Family from socket() call */
393 uint_t conn_so_type; /* Type from socket() call */
394
395 uint_t conn_sndbuf; /* SO_SNDBUF state */
396 uint_t conn_rcvbuf; /* SO_RCVBUF state */
397 uint_t conn_wroff; /* Current write offset */
398
399 uint_t conn_sndlowat; /* Send buffer low water mark */
400 uint_t conn_rcvlowat; /* Recv buffer low water mark */
401
402 uint8_t conn_default_ttl; /* Default TTL/hoplimit */
403
404 uint32_t conn_flowinfo; /* Connected flow id and tclass */
405
406 /*
407 * The most recent address for sendto. Initially set to zero
408 * which is always different than then the destination address
409 * since the send interprets zero as the loopback address.
410 */
411 in6_addr_t conn_v6lastdst;
412 #define conn_v4lastdst V4_PART_OF_V6(conn_v6lastdst)
413 ushort_t conn_lastipversion;
414 in_port_t conn_lastdstport;
415 uint32_t conn_lastflowinfo; /* IPv6-only */
416 uint_t conn_lastscopeid; /* IPv6-only */
417 uint_t conn_lastsrcid; /* Only for AF_INET6 */
418 /*
419 * When we are not connected conn_saddr might be unspecified.
420 * We track the source that was used with conn_v6lastdst here.
421 */
422 in6_addr_t conn_v6lastsrc;
423 #define conn_v4lastsrc V4_PART_OF_V6(conn_v6lastsrc)
424
425 /* Templates for transmitting packets */
426 ip_pkt_t conn_xmit_ipp; /* Options if no ancil data */
427
428 /*
429 * Header template - conn_ht_ulp is a pointer into conn_ht_iphc.
430 * Note that ixa_ip_hdr_length indicates the offset of ht_ulp in
431 * ht_iphc
432 *
433 * The header template is maintained for connected endpoints (and
434 * updated when sticky options are changed) and also for the lastdst.
435 * There is no conflict between those usages since SOCK_DGRAM and
436 * SOCK_RAW can not be used to specify a destination address (with
437 * sendto/sendmsg) if the socket has been connected.
438 */
439 uint8_t *conn_ht_iphc; /* Start of IP header */
440 uint_t conn_ht_iphc_allocated; /* Allocated buffer size */
441 uint_t conn_ht_iphc_len; /* IP+ULP size */
442 uint8_t *conn_ht_ulp; /* Upper-layer header */
443 uint_t conn_ht_ulp_len; /* ULP header len */
444
445 /* Checksum to compensate for source routed packets. Host byte order */
446 uint32_t conn_sum;
447
448 uint32_t conn_ioctlref; /* ioctl ref count */
449 #ifdef CONN_DEBUG
450 #define CONN_TRACE_MAX 10
451 int conn_trace_last; /* ndx of last used tracebuf */
452 conn_trace_t conn_trace_buf[CONN_TRACE_MAX];
453 #endif
454 };
455
456 /*
457 * connf_t - connection fanout data.
458 *
459 * The hash tables and their linkage (conn_t.{hashnextp, hashprevp} are
460 * protected by the per-bucket lock. Each conn_t inserted in the list
461 * points back at the connf_t that heads the bucket.
462 */
463 struct connf_s {
464 struct conn_s *connf_head;
465 kmutex_t connf_lock;
466 };
467
468 #define CONN_INC_REF(connp) { \
469 mutex_enter(&(connp)->conn_lock); \
470 DTRACE_PROBE1(conn__inc__ref, conn_t *, connp); \
471 ASSERT(conn_trace_ref(connp)); \
472 (connp)->conn_ref++; \
473 ASSERT((connp)->conn_ref != 0); \
474 mutex_exit(&(connp)->conn_lock); \
475 }
476
477 #define CONN_INC_REF_LOCKED(connp) { \
478 DTRACE_PROBE1(conn__inc__ref, conn_t *, connp); \
479 ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \
480 ASSERT(conn_trace_ref(connp)); \
481 (connp)->conn_ref++; \
482 ASSERT((connp)->conn_ref != 0); \
483 }
484
485 #define CONN_DEC_REF(connp) { \
486 mutex_enter(&(connp)->conn_lock); \
487 DTRACE_PROBE1(conn__dec__ref, conn_t *, connp); \
488 /* \
489 * The squeue framework always does a CONN_DEC_REF after return \
490 * from TCP. Hence the refcnt must be at least 2 if conn_on_sqp \
491 * is B_TRUE and conn_ref is being decremented. This is to \
492 * account for the mblk being currently processed. \
493 */ \
494 if ((connp)->conn_ref == 0 || \
495 ((connp)->conn_ref == 1 && (connp)->conn_on_sqp)) \
496 cmn_err(CE_PANIC, "CONN_DEC_REF: connp(%p) has ref " \
497 "= %d\n", (void *)(connp), (connp)->conn_ref); \
498 ASSERT(conn_untrace_ref(connp)); \
499 (connp)->conn_ref--; \
500 if ((connp)->conn_ref == 0) { \
501 /* Refcnt can't increase again, safe to drop lock */ \
502 mutex_exit(&(connp)->conn_lock); \
503 ipcl_conn_destroy(connp); \
504 } else { \
505 cv_broadcast(&(connp)->conn_cv); \
506 mutex_exit(&(connp)->conn_lock); \
507 } \
508 }
509
510 /*
511 * For use with subsystems within ip which use ALL_ZONES as a wildcard
512 */
513 #define IPCL_ZONEID(connp) \
514 ((connp)->conn_allzones ? ALL_ZONES : (connp)->conn_zoneid)
515
516 /*
517 * For matching between a conn_t and a zoneid.
518 */
519 #define IPCL_ZONE_MATCH(connp, zoneid) \
520 (((connp)->conn_allzones) || \
521 ((zoneid) == ALL_ZONES) || \
522 (connp)->conn_zoneid == (zoneid))
523
524 /*
525 * On a labeled system, we must treat bindings to ports
526 * on shared IP addresses by sockets with MAC exemption
527 * privilege as being in all zones, as there's
528 * otherwise no way to identify the right receiver.
529 */
530
531 #define IPCL_CONNS_MAC(conn1, conn2) \
532 (((conn1)->conn_mac_mode != CONN_MAC_DEFAULT) || \
533 ((conn2)->conn_mac_mode != CONN_MAC_DEFAULT))
534
535 #define IPCL_BIND_ZONE_MATCH(conn1, conn2) \
536 (IPCL_CONNS_MAC(conn1, conn2) || \
537 IPCL_ZONE_MATCH(conn1, conn2->conn_zoneid) || \
538 IPCL_ZONE_MATCH(conn2, conn1->conn_zoneid))
539
540
541 #define _IPCL_V4_MATCH(v6addr, v4addr) \
542 (V4_PART_OF_V6((v6addr)) == (v4addr) && IN6_IS_ADDR_V4MAPPED(&(v6addr)))
543
544 #define _IPCL_V4_MATCH_ANY(addr) \
545 (IN6_IS_ADDR_V4MAPPED_ANY(&(addr)) || IN6_IS_ADDR_UNSPECIFIED(&(addr)))
546
547
548 /*
549 * IPCL_PROTO_MATCH() and IPCL_PROTO_MATCH_V6() only matches conns with
550 * the specified ira_zoneid or conn_allzones by calling conn_wantpacket.
551 */
552 #define IPCL_PROTO_MATCH(connp, ira, ipha) \
553 ((((connp)->conn_laddr_v4 == INADDR_ANY) || \
554 (((connp)->conn_laddr_v4 == ((ipha)->ipha_dst)) && \
555 (((connp)->conn_faddr_v4 == INADDR_ANY) || \
556 ((connp)->conn_faddr_v4 == ((ipha)->ipha_src))))) && \
557 conn_wantpacket((connp), (ira), (ipha)))
558
559 #define IPCL_PROTO_MATCH_V6(connp, ira, ip6h) \
560 ((IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6) || \
561 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &((ip6h)->ip6_dst)) && \
562 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_faddr_v6) || \
563 IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, &((ip6h)->ip6_src))))) && \
564 (conn_wantpacket_v6((connp), (ira), (ip6h))))
565
566 #define IPCL_CONN_HASH(src, ports, ipst) \
567 ((unsigned)(ntohl((src)) ^ ((ports) >> 24) ^ ((ports) >> 16) ^ \
568 ((ports) >> 8) ^ (ports)) % (ipst)->ips_ipcl_conn_fanout_size)
569
570 #define IPCL_CONN_HASH_V6(src, ports, ipst) \
571 IPCL_CONN_HASH(V4_PART_OF_V6((src)), (ports), (ipst))
572
573 #define IPCL_CONN_MATCH(connp, proto, src, dst, ports) \
574 ((connp)->conn_proto == (proto) && \
575 (connp)->conn_ports == (ports) && \
576 _IPCL_V4_MATCH((connp)->conn_faddr_v6, (src)) && \
577 _IPCL_V4_MATCH((connp)->conn_laddr_v6, (dst)) && \
578 !(connp)->conn_ipv6_v6only)
579
580 #define IPCL_CONN_MATCH_V6(connp, proto, src, dst, ports) \
581 ((connp)->conn_proto == (proto) && \
582 (connp)->conn_ports == (ports) && \
583 IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, &(src)) && \
584 IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(dst)))
585
586 #define IPCL_PORT_HASH(port, size) \
587 ((((port) >> 8) ^ (port)) & ((size) - 1))
588
589 #define IPCL_BIND_HASH(lport, ipst) \
590 ((unsigned)(((lport) >> 8) ^ (lport)) % \
591 (ipst)->ips_ipcl_bind_fanout_size)
592
593 #define IPCL_BIND_MATCH(connp, proto, laddr, lport) \
594 ((connp)->conn_proto == (proto) && \
595 (connp)->conn_lport == (lport) && \
596 (_IPCL_V4_MATCH_ANY((connp)->conn_laddr_v6) || \
597 _IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr))) && \
598 !(connp)->conn_ipv6_v6only)
599
600 #define IPCL_BIND_MATCH_V6(connp, proto, laddr, lport) \
601 ((connp)->conn_proto == (proto) && \
602 (connp)->conn_lport == (lport) && \
603 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(laddr)) || \
604 IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6)))
605
606 /*
607 * We compare conn_laddr since it captures both connected and a bind to
608 * a multicast or broadcast address.
609 * The caller needs to match the zoneid and also call conn_wantpacket
610 * for multicast, broadcast, or when conn_incoming_ifindex is set.
611 */
612 #define IPCL_UDP_MATCH(connp, lport, laddr, fport, faddr) \
613 (((connp)->conn_lport == (lport)) && \
614 ((_IPCL_V4_MATCH_ANY((connp)->conn_laddr_v6) || \
615 (_IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr)) && \
616 (_IPCL_V4_MATCH_ANY((connp)->conn_faddr_v6) || \
617 (_IPCL_V4_MATCH((connp)->conn_faddr_v6, (faddr)) && \
618 (connp)->conn_fport == (fport)))))) && \
619 !(connp)->conn_ipv6_v6only)
620
621 /*
622 * We compare conn_laddr since it captures both connected and a bind to
623 * a multicast or broadcast address.
624 * The caller needs to match the zoneid and also call conn_wantpacket_v6
625 * for multicast or when conn_incoming_ifindex is set.
626 */
627 #define IPCL_UDP_MATCH_V6(connp, lport, laddr, fport, faddr) \
628 (((connp)->conn_lport == (lport)) && \
629 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6) || \
630 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(laddr)) && \
631 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_faddr_v6) || \
632 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, &(faddr)) && \
633 (connp)->conn_fport == (fport))))))
634
635 #define IPCL_IPTUN_HASH(laddr, faddr) \
636 ((ntohl(laddr) ^ ((ntohl(faddr) << 24) | (ntohl(faddr) >> 8))) % \
637 ipcl_iptun_fanout_size)
638
639 #define IPCL_IPTUN_HASH_V6(laddr, faddr) \
640 IPCL_IPTUN_HASH((laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \
641 (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3], \
642 (faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \
643 (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3])
644
645 #define IPCL_IPTUN_MATCH(connp, laddr, faddr) \
646 (_IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr)) && \
647 _IPCL_V4_MATCH((connp)->conn_faddr_v6, (faddr)))
648
649 #define IPCL_IPTUN_MATCH_V6(connp, laddr, faddr) \
650 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, (laddr)) && \
651 IN6_ARE_ADDR_EQUAL(&(connp)->conn_faddr_v6, (faddr)))
652
653 #define IPCL_UDP_HASH(lport, ipst) \
654 IPCL_PORT_HASH(lport, (ipst)->ips_ipcl_udp_fanout_size)
655
656 #define CONN_G_HASH_SIZE 1024
657
658 /* Raw socket hash function. */
659 #define IPCL_RAW_HASH(lport, ipst) \
660 IPCL_PORT_HASH(lport, (ipst)->ips_ipcl_raw_fanout_size)
661
662 /*
663 * This is similar to IPCL_BIND_MATCH except that the local port check
664 * is changed to a wildcard port check.
665 * We compare conn_laddr since it captures both connected and a bind to
666 * a multicast or broadcast address.
667 */
668 #define IPCL_RAW_MATCH(connp, proto, laddr) \
669 ((connp)->conn_proto == (proto) && \
670 (connp)->conn_lport == 0 && \
671 (_IPCL_V4_MATCH_ANY((connp)->conn_laddr_v6) || \
672 _IPCL_V4_MATCH((connp)->conn_laddr_v6, (laddr))))
673
674 #define IPCL_RAW_MATCH_V6(connp, proto, laddr) \
675 ((connp)->conn_proto == (proto) && \
676 (connp)->conn_lport == 0 && \
677 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_laddr_v6) || \
678 IN6_ARE_ADDR_EQUAL(&(connp)->conn_laddr_v6, &(laddr))))
679
680 /* Function prototypes */
681 extern void ipcl_g_init(void);
682 extern void ipcl_init(ip_stack_t *);
683 extern void ipcl_g_destroy(void);
684 extern void ipcl_destroy(ip_stack_t *);
685 extern conn_t *ipcl_conn_create(uint32_t, int, netstack_t *);
686 extern void ipcl_conn_destroy(conn_t *);
687
688 void ipcl_hash_insert_wildcard(connf_t *, conn_t *);
689 void ipcl_hash_remove(conn_t *);
690 void ipcl_hash_remove_locked(conn_t *connp, connf_t *connfp);
691
692 extern int ipcl_bind_insert(conn_t *);
693 extern int ipcl_bind_insert_v4(conn_t *);
694 extern int ipcl_bind_insert_v6(conn_t *);
695 extern int ipcl_conn_insert(conn_t *);
696 extern int ipcl_conn_insert_v4(conn_t *);
697 extern int ipcl_conn_insert_v6(conn_t *);
698 extern conn_t *ipcl_get_next_conn(connf_t *, conn_t *, uint32_t);
699
700 conn_t *ipcl_classify_v4(mblk_t *, uint8_t, uint_t, ip_recv_attr_t *,
701 ip_stack_t *);
702 conn_t *ipcl_classify_v6(mblk_t *, uint8_t, uint_t, ip_recv_attr_t *,
703 ip_stack_t *);
704 conn_t *ipcl_classify(mblk_t *, ip_recv_attr_t *, ip_stack_t *);
705 conn_t *ipcl_classify_raw(mblk_t *, uint8_t, uint32_t, ipha_t *,
706 ip6_t *, ip_recv_attr_t *, ip_stack_t *);
707 conn_t *ipcl_iptun_classify_v4(ipaddr_t *, ipaddr_t *, ip_stack_t *);
708 conn_t *ipcl_iptun_classify_v6(in6_addr_t *, in6_addr_t *, ip_stack_t *);
709 void ipcl_globalhash_insert(conn_t *);
710 void ipcl_globalhash_remove(conn_t *);
711 void ipcl_walk(pfv_t, void *, ip_stack_t *);
712 conn_t *ipcl_tcp_lookup_reversed_ipv4(ipha_t *, tcpha_t *, int, ip_stack_t *);
713 conn_t *ipcl_tcp_lookup_reversed_ipv6(ip6_t *, tcpha_t *, int, uint_t,
714 ip_stack_t *);
715 conn_t *ipcl_lookup_listener_v4(uint16_t, ipaddr_t, zoneid_t, ip_stack_t *);
716 conn_t *ipcl_lookup_listener_v6(uint16_t, in6_addr_t *, uint_t, zoneid_t,
717 ip_stack_t *);
718 int conn_trace_ref(conn_t *);
719 int conn_untrace_ref(conn_t *);
720 void ipcl_conn_cleanup(conn_t *);
721 extern uint_t conn_recvancillary_size(conn_t *, crb_t, ip_recv_attr_t *,
722 mblk_t *, ip_pkt_t *);
723 extern void conn_recvancillary_add(conn_t *, crb_t, ip_recv_attr_t *,
724 ip_pkt_t *, uchar_t *, uint_t);
725 conn_t *ipcl_conn_tcp_lookup_reversed_ipv4(conn_t *, ipha_t *, tcpha_t *,
726 ip_stack_t *);
727 conn_t *ipcl_conn_tcp_lookup_reversed_ipv6(conn_t *, ip6_t *, tcpha_t *,
728 ip_stack_t *);
729
730 extern int ip_create_helper_stream(conn_t *, ldi_ident_t);
731 extern void ip_free_helper_stream(conn_t *);
732 extern int ip_helper_stream_setup(queue_t *, dev_t *, int, int,
733 cred_t *, boolean_t);
734
735 #ifdef __cplusplus
736 }
737 #endif
738
739 #endif /* _INET_IPCLASSIFIER_H */