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