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17926a79 DH |
1 | /* AF_RXRPC internal definitions |
2 | * | |
3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
be6e6707 | 12 | #include <linux/atomic.h> |
8496af50 | 13 | #include <linux/seqlock.h> |
2baec2c3 DH |
14 | #include <net/net_namespace.h> |
15 | #include <net/netns/generic.h> | |
e0e4d82f | 16 | #include <net/sock.h> |
be6e6707 | 17 | #include <net/af_rxrpc.h> |
ddc6c70f | 18 | #include "protocol.h" |
17926a79 DH |
19 | |
20 | #if 0 | |
21 | #define CHECK_SLAB_OKAY(X) \ | |
22 | BUG_ON(atomic_read((X)) >> (sizeof(atomic_t) - 2) == \ | |
23 | (POISON_FREE << 8 | POISON_FREE)) | |
24 | #else | |
b4f1342f | 25 | #define CHECK_SLAB_OKAY(X) do {} while (0) |
17926a79 DH |
26 | #endif |
27 | ||
17926a79 DH |
28 | #define FCRYPT_BSIZE 8 |
29 | struct rxrpc_crypt { | |
30 | union { | |
31 | u8 x[FCRYPT_BSIZE]; | |
91e916cf | 32 | __be32 n[2]; |
17926a79 DH |
33 | }; |
34 | } __attribute__((aligned(8))); | |
35 | ||
651350d1 DH |
36 | #define rxrpc_queue_work(WS) queue_work(rxrpc_workqueue, (WS)) |
37 | #define rxrpc_queue_delayed_work(WS,D) \ | |
38 | queue_delayed_work(rxrpc_workqueue, (WS), (D)) | |
39 | ||
cc8feb8e DH |
40 | struct rxrpc_connection; |
41 | ||
d001648e DH |
42 | /* |
43 | * Mark applied to socket buffers. | |
44 | */ | |
45 | enum rxrpc_skb_mark { | |
46 | RXRPC_SKB_MARK_DATA, /* data message */ | |
47 | RXRPC_SKB_MARK_FINAL_ACK, /* final ACK received message */ | |
48 | RXRPC_SKB_MARK_BUSY, /* server busy message */ | |
49 | RXRPC_SKB_MARK_REMOTE_ABORT, /* remote abort message */ | |
50 | RXRPC_SKB_MARK_LOCAL_ABORT, /* local abort message */ | |
51 | RXRPC_SKB_MARK_NET_ERROR, /* network error message */ | |
52 | RXRPC_SKB_MARK_LOCAL_ERROR, /* local error message */ | |
53 | RXRPC_SKB_MARK_NEW_CALL, /* local error message */ | |
54 | }; | |
55 | ||
17926a79 DH |
56 | /* |
57 | * sk_state for RxRPC sockets | |
58 | */ | |
59 | enum { | |
2341e077 DH |
60 | RXRPC_UNBOUND = 0, |
61 | RXRPC_CLIENT_UNBOUND, /* Unbound socket used as client */ | |
17926a79 | 62 | RXRPC_CLIENT_BOUND, /* client local address bound */ |
17926a79 | 63 | RXRPC_SERVER_BOUND, /* server local address bound */ |
28036f44 | 64 | RXRPC_SERVER_BOUND2, /* second server local address bound */ |
17926a79 | 65 | RXRPC_SERVER_LISTENING, /* server listening for connections */ |
210f0353 | 66 | RXRPC_SERVER_LISTEN_DISABLED, /* server listening disabled */ |
17926a79 DH |
67 | RXRPC_CLOSE, /* socket is being closed */ |
68 | }; | |
69 | ||
2baec2c3 DH |
70 | /* |
71 | * Per-network namespace data. | |
72 | */ | |
73 | struct rxrpc_net { | |
74 | struct proc_dir_entry *proc_net; /* Subdir in /proc/net */ | |
75 | u32 epoch; /* Local epoch for detecting local-end reset */ | |
76 | struct list_head calls; /* List of calls active in this namespace */ | |
77 | rwlock_t call_lock; /* Lock for ->calls */ | |
78 | ||
79 | struct list_head conn_proc_list; /* List of conns in this namespace for proc */ | |
80 | struct list_head service_conns; /* Service conns in this namespace */ | |
81 | rwlock_t conn_lock; /* Lock for ->conn_proc_list, ->service_conns */ | |
3d18cbb7 DH |
82 | struct work_struct service_conn_reaper; |
83 | struct timer_list service_conn_reap_timer; | |
2baec2c3 DH |
84 | |
85 | unsigned int nr_client_conns; | |
86 | unsigned int nr_active_client_conns; | |
87 | bool kill_all_client_conns; | |
f859ab61 | 88 | bool live; |
2baec2c3 DH |
89 | spinlock_t client_conn_cache_lock; /* Lock for ->*_client_conns */ |
90 | spinlock_t client_conn_discard_lock; /* Prevent multiple discarders */ | |
91 | struct list_head waiting_client_conns; | |
92 | struct list_head active_client_conns; | |
93 | struct list_head idle_client_conns; | |
3d18cbb7 DH |
94 | struct work_struct client_conn_reaper; |
95 | struct timer_list client_conn_reap_timer; | |
2baec2c3 DH |
96 | |
97 | struct list_head local_endpoints; | |
98 | struct mutex local_mutex; /* Lock for ->local_endpoints */ | |
99 | ||
100 | spinlock_t peer_hash_lock; /* Lock for ->peer_hash */ | |
101 | DECLARE_HASHTABLE (peer_hash, 10); | |
102 | }; | |
103 | ||
00e90712 DH |
104 | /* |
105 | * Service backlog preallocation. | |
106 | * | |
107 | * This contains circular buffers of preallocated peers, connections and calls | |
108 | * for incoming service calls and their head and tail pointers. This allows | |
109 | * calls to be set up in the data_ready handler, thereby avoiding the need to | |
110 | * shuffle packets around so much. | |
111 | */ | |
112 | struct rxrpc_backlog { | |
113 | unsigned short peer_backlog_head; | |
114 | unsigned short peer_backlog_tail; | |
115 | unsigned short conn_backlog_head; | |
116 | unsigned short conn_backlog_tail; | |
117 | unsigned short call_backlog_head; | |
118 | unsigned short call_backlog_tail; | |
119 | #define RXRPC_BACKLOG_MAX 32 | |
120 | struct rxrpc_peer *peer_backlog[RXRPC_BACKLOG_MAX]; | |
121 | struct rxrpc_connection *conn_backlog[RXRPC_BACKLOG_MAX]; | |
122 | struct rxrpc_call *call_backlog[RXRPC_BACKLOG_MAX]; | |
123 | }; | |
124 | ||
17926a79 DH |
125 | /* |
126 | * RxRPC socket definition | |
127 | */ | |
128 | struct rxrpc_sock { | |
129 | /* WARNING: sk has to be the first member */ | |
130 | struct sock sk; | |
d001648e | 131 | rxrpc_notify_new_call_t notify_new_call; /* Func to notify of new call */ |
00e90712 | 132 | rxrpc_discard_new_call_t discard_new_call; /* Func to discard a new call */ |
17926a79 | 133 | struct rxrpc_local *local; /* local endpoint */ |
00e90712 | 134 | struct rxrpc_backlog *backlog; /* Preallocation for services */ |
248f219c DH |
135 | spinlock_t incoming_lock; /* Incoming call vs service shutdown lock */ |
136 | struct list_head sock_calls; /* List of calls owned by this socket */ | |
137 | struct list_head to_be_accepted; /* calls awaiting acceptance */ | |
138 | struct list_head recvmsg_q; /* Calls awaiting recvmsg's attention */ | |
139 | rwlock_t recvmsg_lock; /* Lock for recvmsg_q */ | |
17926a79 DH |
140 | struct key *key; /* security for this socket */ |
141 | struct key *securities; /* list of server security descriptors */ | |
00e90712 | 142 | struct rb_root calls; /* User ID -> call mapping */ |
17926a79 | 143 | unsigned long flags; |
2341e077 | 144 | #define RXRPC_SOCK_CONNECTED 0 /* connect_srx is set */ |
17926a79 DH |
145 | rwlock_t call_lock; /* lock for calls */ |
146 | u32 min_sec_level; /* minimum security level */ | |
147 | #define RXRPC_SECURITY_MAX RXRPC_SECURITY_ENCRYPT | |
cc8feb8e | 148 | bool exclusive; /* Exclusive connection for a client socket */ |
28036f44 | 149 | u16 second_service; /* Additional service bound to the endpoint */ |
4722974d DH |
150 | struct { |
151 | /* Service upgrade information */ | |
152 | u16 from; /* Service ID to upgrade (if not 0) */ | |
153 | u16 to; /* service ID to upgrade to */ | |
154 | } service_upgrade; | |
cc8feb8e | 155 | sa_family_t family; /* Protocol family created with */ |
4722974d | 156 | struct sockaddr_rxrpc srx; /* Primary Service/local addresses */ |
2341e077 | 157 | struct sockaddr_rxrpc connect_srx; /* Default client address from connect() */ |
17926a79 DH |
158 | }; |
159 | ||
160 | #define rxrpc_sk(__sk) container_of((__sk), struct rxrpc_sock, sk) | |
161 | ||
0d12f8a4 DH |
162 | /* |
163 | * CPU-byteorder normalised Rx packet header. | |
164 | */ | |
165 | struct rxrpc_host_header { | |
166 | u32 epoch; /* client boot timestamp */ | |
167 | u32 cid; /* connection and channel ID */ | |
168 | u32 callNumber; /* call ID (0 for connection-level packets) */ | |
169 | u32 seq; /* sequence number of pkt in call stream */ | |
170 | u32 serial; /* serial number of pkt sent to network */ | |
171 | u8 type; /* packet type */ | |
172 | u8 flags; /* packet flags */ | |
173 | u8 userStatus; /* app-layer defined status */ | |
174 | u8 securityIndex; /* security protocol ID */ | |
175 | union { | |
176 | u16 _rsvd; /* reserved */ | |
177 | u16 cksum; /* kerberos security checksum */ | |
178 | }; | |
179 | u16 serviceId; /* service ID */ | |
180 | } __packed; | |
181 | ||
17926a79 DH |
182 | /* |
183 | * RxRPC socket buffer private variables | |
184 | * - max 48 bytes (struct sk_buff::cb) | |
185 | */ | |
186 | struct rxrpc_skb_priv { | |
248f219c | 187 | union { |
50235c4b | 188 | u8 nr_jumbo; /* Number of jumbo subpackets */ |
248f219c | 189 | }; |
17926a79 | 190 | union { |
17926a79 | 191 | int remain; /* amount of space remaining for next write */ |
17926a79 DH |
192 | }; |
193 | ||
0d12f8a4 | 194 | struct rxrpc_host_header hdr; /* RxRPC packet header from this packet */ |
17926a79 DH |
195 | }; |
196 | ||
197 | #define rxrpc_skb(__skb) ((struct rxrpc_skb_priv *) &(__skb)->cb) | |
198 | ||
17926a79 DH |
199 | /* |
200 | * RxRPC security module interface | |
201 | */ | |
202 | struct rxrpc_security { | |
17926a79 DH |
203 | const char *name; /* name of this service */ |
204 | u8 security_index; /* security type provided */ | |
205 | ||
648af7fc DH |
206 | /* Initialise a security service */ |
207 | int (*init)(void); | |
208 | ||
209 | /* Clean up a security service */ | |
210 | void (*exit)(void); | |
211 | ||
17926a79 DH |
212 | /* initialise a connection's security */ |
213 | int (*init_connection_security)(struct rxrpc_connection *); | |
214 | ||
215 | /* prime a connection's packet security */ | |
a263629d | 216 | int (*prime_packet_security)(struct rxrpc_connection *); |
17926a79 DH |
217 | |
218 | /* impose security on a packet */ | |
a263629d | 219 | int (*secure_packet)(struct rxrpc_call *, |
17926a79 DH |
220 | struct sk_buff *, |
221 | size_t, | |
222 | void *); | |
223 | ||
224 | /* verify the security on a received packet */ | |
5a42976d | 225 | int (*verify_packet)(struct rxrpc_call *, struct sk_buff *, |
248f219c DH |
226 | unsigned int, unsigned int, rxrpc_seq_t, u16); |
227 | ||
228 | /* Locate the data in a received packet that has been verified. */ | |
229 | void (*locate_data)(struct rxrpc_call *, struct sk_buff *, | |
230 | unsigned int *, unsigned int *); | |
17926a79 DH |
231 | |
232 | /* issue a challenge */ | |
233 | int (*issue_challenge)(struct rxrpc_connection *); | |
234 | ||
235 | /* respond to a challenge */ | |
236 | int (*respond_to_challenge)(struct rxrpc_connection *, | |
237 | struct sk_buff *, | |
238 | u32 *); | |
239 | ||
240 | /* verify a response */ | |
241 | int (*verify_response)(struct rxrpc_connection *, | |
242 | struct sk_buff *, | |
243 | u32 *); | |
244 | ||
245 | /* clear connection security */ | |
246 | void (*clear)(struct rxrpc_connection *); | |
247 | }; | |
248 | ||
249 | /* | |
4f95dd78 DH |
250 | * RxRPC local transport endpoint description |
251 | * - owned by a single AF_RXRPC socket | |
252 | * - pointed to by transport socket struct sk_user_data | |
17926a79 DH |
253 | */ |
254 | struct rxrpc_local { | |
4f95dd78 DH |
255 | struct rcu_head rcu; |
256 | atomic_t usage; | |
2baec2c3 | 257 | struct rxrpc_net *rxnet; /* The network ns in which this resides */ |
4f95dd78 | 258 | struct list_head link; |
17926a79 | 259 | struct socket *socket; /* my UDP socket */ |
4f95dd78 | 260 | struct work_struct processor; |
1e9e5c95 | 261 | struct rxrpc_sock __rcu *service; /* Service(s) listening on this endpoint */ |
17926a79 | 262 | struct rw_semaphore defrag_sem; /* control re-enablement of IP DF bit */ |
17926a79 | 263 | struct sk_buff_head reject_queue; /* packets awaiting rejection */ |
44ba0698 | 264 | struct sk_buff_head event_queue; /* endpoint event packets awaiting processing */ |
999b69f8 DH |
265 | struct rb_root client_conns; /* Client connections by socket params */ |
266 | spinlock_t client_conns_lock; /* Lock for client_conns */ | |
17926a79 DH |
267 | spinlock_t lock; /* access lock */ |
268 | rwlock_t services_lock; /* lock for services list */ | |
17926a79 | 269 | int debug_id; /* debug ID for printks */ |
4f95dd78 | 270 | bool dead; |
f859ab61 | 271 | bool service_closed; /* Service socket closed */ |
17926a79 DH |
272 | struct sockaddr_rxrpc srx; /* local address */ |
273 | }; | |
274 | ||
275 | /* | |
276 | * RxRPC remote transport endpoint definition | |
be6e6707 | 277 | * - matched by local endpoint, remote port, address and protocol type |
17926a79 DH |
278 | */ |
279 | struct rxrpc_peer { | |
be6e6707 DH |
280 | struct rcu_head rcu; /* This must be first */ |
281 | atomic_t usage; | |
282 | unsigned long hash_key; | |
283 | struct hlist_node hash_link; | |
284 | struct rxrpc_local *local; | |
f66d7490 DH |
285 | struct hlist_head error_targets; /* targets for net error distribution */ |
286 | struct work_struct error_distributor; | |
aa390bbe | 287 | struct rb_root service_conns; /* Service connections */ |
8496af50 | 288 | seqlock_t service_conn_lock; |
17926a79 | 289 | spinlock_t lock; /* access lock */ |
95c96174 ED |
290 | unsigned int if_mtu; /* interface MTU for this peer */ |
291 | unsigned int mtu; /* network MTU for this peer */ | |
292 | unsigned int maxdata; /* data size (MTU - hdrsize) */ | |
17926a79 DH |
293 | unsigned short hdrsize; /* header size (IP + UDP + RxRPC) */ |
294 | int debug_id; /* debug ID for printks */ | |
f66d7490 DH |
295 | int error_report; /* Net (+0) or local (+1000000) to distribute */ |
296 | #define RXRPC_LOCAL_ERROR_OFFSET 1000000 | |
17926a79 DH |
297 | struct sockaddr_rxrpc srx; /* remote address */ |
298 | ||
299 | /* calculated RTT cache */ | |
300 | #define RXRPC_RTT_CACHE_SIZE 32 | |
0d4b103c | 301 | ktime_t rtt_last_req; /* Time of last RTT request */ |
cf1a6474 DH |
302 | u64 rtt; /* Current RTT estimate (in nS) */ |
303 | u64 rtt_sum; /* Sum of cache contents */ | |
304 | u64 rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* Determined RTT cache */ | |
305 | u8 rtt_cursor; /* next entry at which to insert */ | |
306 | u8 rtt_usage; /* amount of cache actually used */ | |
f7aec129 DH |
307 | |
308 | u8 cong_cwnd; /* Congestion window size */ | |
17926a79 DH |
309 | }; |
310 | ||
19ffa01c DH |
311 | /* |
312 | * Keys for matching a connection. | |
313 | */ | |
314 | struct rxrpc_conn_proto { | |
e8d70ce1 DH |
315 | union { |
316 | struct { | |
317 | u32 epoch; /* epoch of this connection */ | |
318 | u32 cid; /* connection ID */ | |
319 | }; | |
320 | u64 index_key; | |
19ffa01c DH |
321 | }; |
322 | }; | |
323 | ||
324 | struct rxrpc_conn_parameters { | |
325 | struct rxrpc_local *local; /* Representation of local endpoint */ | |
326 | struct rxrpc_peer *peer; /* Remote endpoint */ | |
327 | struct key *key; /* Security details */ | |
328 | bool exclusive; /* T if conn is exclusive */ | |
4e255721 | 329 | bool upgrade; /* T if service ID can be upgraded */ |
19ffa01c DH |
330 | u16 service_id; /* Service ID for this connection */ |
331 | u32 security_level; /* Security level selected */ | |
332 | }; | |
333 | ||
bba304db DH |
334 | /* |
335 | * Bits in the connection flags. | |
336 | */ | |
337 | enum rxrpc_conn_flag { | |
338 | RXRPC_CONN_HAS_IDR, /* Has a client conn ID assigned */ | |
001c1122 DH |
339 | RXRPC_CONN_IN_SERVICE_CONNS, /* Conn is in peer->service_conns */ |
340 | RXRPC_CONN_IN_CLIENT_CONNS, /* Conn is in local->client_conns */ | |
45025bce DH |
341 | RXRPC_CONN_EXPOSED, /* Conn has extra ref for exposure */ |
342 | RXRPC_CONN_DONT_REUSE, /* Don't reuse this connection */ | |
343 | RXRPC_CONN_COUNTED, /* Counted by rxrpc_nr_client_conns */ | |
4e255721 | 344 | RXRPC_CONN_PROBING_FOR_UPGRADE, /* Probing for service upgrade */ |
3136ef49 DH |
345 | RXRPC_CONN_FINAL_ACK_0, /* Need final ACK for channel 0 */ |
346 | RXRPC_CONN_FINAL_ACK_1, /* Need final ACK for channel 1 */ | |
347 | RXRPC_CONN_FINAL_ACK_2, /* Need final ACK for channel 2 */ | |
348 | RXRPC_CONN_FINAL_ACK_3, /* Need final ACK for channel 3 */ | |
bba304db DH |
349 | }; |
350 | ||
3136ef49 DH |
351 | #define RXRPC_CONN_FINAL_ACK_MASK ((1UL << RXRPC_CONN_FINAL_ACK_0) | \ |
352 | (1UL << RXRPC_CONN_FINAL_ACK_1) | \ | |
353 | (1UL << RXRPC_CONN_FINAL_ACK_2) | \ | |
354 | (1UL << RXRPC_CONN_FINAL_ACK_3)) | |
355 | ||
bba304db DH |
356 | /* |
357 | * Events that can be raised upon a connection. | |
358 | */ | |
359 | enum rxrpc_conn_event { | |
360 | RXRPC_CONN_EV_CHALLENGE, /* Send challenge packet */ | |
361 | }; | |
362 | ||
45025bce DH |
363 | /* |
364 | * The connection cache state. | |
365 | */ | |
366 | enum rxrpc_conn_cache_state { | |
367 | RXRPC_CONN_CLIENT_INACTIVE, /* Conn is not yet listed */ | |
368 | RXRPC_CONN_CLIENT_WAITING, /* Conn is on wait list, waiting for capacity */ | |
369 | RXRPC_CONN_CLIENT_ACTIVE, /* Conn is on active list, doing calls */ | |
4e255721 | 370 | RXRPC_CONN_CLIENT_UPGRADE, /* Conn is on active list, probing for upgrade */ |
45025bce DH |
371 | RXRPC_CONN_CLIENT_CULLED, /* Conn is culled and delisted, doing calls */ |
372 | RXRPC_CONN_CLIENT_IDLE, /* Conn is on idle list, doing mostly nothing */ | |
363deeab | 373 | RXRPC_CONN__NR_CACHE_STATES |
45025bce DH |
374 | }; |
375 | ||
bba304db DH |
376 | /* |
377 | * The connection protocol state. | |
378 | */ | |
379 | enum rxrpc_conn_proto_state { | |
380 | RXRPC_CONN_UNUSED, /* Connection not yet attempted */ | |
381 | RXRPC_CONN_CLIENT, /* Client connection */ | |
00e90712 | 382 | RXRPC_CONN_SERVICE_PREALLOC, /* Service connection preallocation */ |
bba304db DH |
383 | RXRPC_CONN_SERVICE_UNSECURED, /* Service unsecured connection */ |
384 | RXRPC_CONN_SERVICE_CHALLENGING, /* Service challenging for security */ | |
385 | RXRPC_CONN_SERVICE, /* Service secured connection */ | |
386 | RXRPC_CONN_REMOTELY_ABORTED, /* Conn aborted by peer */ | |
387 | RXRPC_CONN_LOCALLY_ABORTED, /* Conn aborted locally */ | |
bba304db DH |
388 | RXRPC_CONN__NR_STATES |
389 | }; | |
390 | ||
17926a79 DH |
391 | /* |
392 | * RxRPC connection definition | |
aa390bbe | 393 | * - matched by { local, peer, epoch, conn_id, direction } |
17926a79 DH |
394 | * - each connection can only handle four simultaneous calls |
395 | */ | |
396 | struct rxrpc_connection { | |
19ffa01c DH |
397 | struct rxrpc_conn_proto proto; |
398 | struct rxrpc_conn_parameters params; | |
399 | ||
45025bce DH |
400 | atomic_t usage; |
401 | struct rcu_head rcu; | |
402 | struct list_head cache_link; | |
a1399f8b | 403 | |
45025bce DH |
404 | spinlock_t channel_lock; |
405 | unsigned char active_chans; /* Mask of active channels */ | |
406 | #define RXRPC_ACTIVE_CHANS_MASK ((1 << RXRPC_MAXCALLS) - 1) | |
407 | struct list_head waiting_calls; /* Calls waiting for channels */ | |
a1399f8b | 408 | struct rxrpc_channel { |
3136ef49 | 409 | unsigned long final_ack_at; /* Time at which to issue final ACK */ |
a1399f8b DH |
410 | struct rxrpc_call __rcu *call; /* Active call */ |
411 | u32 call_id; /* ID of current call */ | |
412 | u32 call_counter; /* Call ID counter */ | |
413 | u32 last_call; /* ID of last call */ | |
18bfeba5 | 414 | u8 last_type; /* Type of last packet */ |
18bfeba5 DH |
415 | union { |
416 | u32 last_seq; | |
417 | u32 last_abort; | |
418 | }; | |
a1399f8b | 419 | } channels[RXRPC_MAXCALLS]; |
999b69f8 | 420 | |
3136ef49 | 421 | struct timer_list timer; /* Conn event timer */ |
17926a79 | 422 | struct work_struct processor; /* connection event processor */ |
999b69f8 DH |
423 | union { |
424 | struct rb_node client_node; /* Node in local->client_conns */ | |
aa390bbe | 425 | struct rb_node service_node; /* Node in peer->service_conns */ |
999b69f8 | 426 | }; |
4d028b2c | 427 | struct list_head proc_link; /* link in procfs list */ |
17926a79 | 428 | struct list_head link; /* link in master connection list */ |
17926a79 | 429 | struct sk_buff_head rx_queue; /* received conn-level packets */ |
648af7fc | 430 | const struct rxrpc_security *security; /* applied security module */ |
17926a79 | 431 | struct key *server_key; /* security for this service */ |
1afe593b | 432 | struct crypto_skcipher *cipher; /* encryption handle */ |
17926a79 | 433 | struct rxrpc_crypt csum_iv; /* packet checksum base */ |
4a3388c8 | 434 | unsigned long flags; |
17926a79 | 435 | unsigned long events; |
f51b4480 | 436 | unsigned long idle_timestamp; /* Time at which last became idle */ |
17926a79 | 437 | spinlock_t state_lock; /* state-change lock */ |
cf13258f DH |
438 | enum rxrpc_conn_cache_state cache_state; |
439 | enum rxrpc_conn_proto_state state; /* current state of connection */ | |
dc44b3a0 DH |
440 | u32 local_abort; /* local abort code */ |
441 | u32 remote_abort; /* remote abort code */ | |
17926a79 | 442 | int debug_id; /* debug ID for printks */ |
17926a79 | 443 | atomic_t serial; /* packet serial number counter */ |
563ea7d5 | 444 | unsigned int hi_serial; /* highest serial number received */ |
5a924b89 | 445 | u32 security_nonce; /* response re-use preventer */ |
68d6d1ae | 446 | u16 service_id; /* Service ID, possibly upgraded */ |
17926a79 | 447 | u8 size_align; /* data size alignment (for security) */ |
17926a79 | 448 | u8 security_size; /* security header size */ |
17926a79 | 449 | u8 security_ix; /* security type */ |
17926a79 DH |
450 | u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */ |
451 | }; | |
452 | ||
5b8848d1 DH |
453 | /* |
454 | * Flags in call->flags. | |
455 | */ | |
456 | enum rxrpc_call_flag { | |
457 | RXRPC_CALL_RELEASED, /* call has been released - no more message to userspace */ | |
5b8848d1 | 458 | RXRPC_CALL_HAS_USERID, /* has a user ID attached */ |
dabe5a79 | 459 | RXRPC_CALL_IS_SERVICE, /* Call is service call */ |
45025bce | 460 | RXRPC_CALL_EXPOSED, /* The call was exposed to the world */ |
248f219c DH |
461 | RXRPC_CALL_RX_LAST, /* Received the last packet (at rxtx_top) */ |
462 | RXRPC_CALL_TX_LAST, /* Last packet in Tx buffer (at rxtx_top) */ | |
c038a58c | 463 | RXRPC_CALL_TX_LASTQ, /* Last packet has been queued */ |
a5af7e1f | 464 | RXRPC_CALL_SEND_PING, /* A ping will need to be sent */ |
8e83134d | 465 | RXRPC_CALL_PINGING, /* Ping in process */ |
57494343 | 466 | RXRPC_CALL_RETRANS_TIMEOUT, /* Retransmission due to timeout occurred */ |
5b8848d1 DH |
467 | }; |
468 | ||
469 | /* | |
470 | * Events that can be raised on a call. | |
471 | */ | |
472 | enum rxrpc_call_event { | |
4c198ad1 | 473 | RXRPC_CALL_EV_ACK, /* need to generate ACK */ |
4c198ad1 | 474 | RXRPC_CALL_EV_ABORT, /* need to generate abort */ |
4c198ad1 | 475 | RXRPC_CALL_EV_RESEND, /* Tx resend required */ |
a5af7e1f | 476 | RXRPC_CALL_EV_PING, /* Ping send required */ |
a158bdd3 | 477 | RXRPC_CALL_EV_EXPIRED, /* Expiry occurred */ |
bd1fdf8c | 478 | RXRPC_CALL_EV_ACK_LOST, /* ACK may be lost, send ping */ |
5b8848d1 DH |
479 | }; |
480 | ||
481 | /* | |
482 | * The states that a call can be in. | |
483 | */ | |
484 | enum rxrpc_call_state { | |
999b69f8 DH |
485 | RXRPC_CALL_UNINITIALISED, |
486 | RXRPC_CALL_CLIENT_AWAIT_CONN, /* - client waiting for connection to become available */ | |
5b8848d1 DH |
487 | RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */ |
488 | RXRPC_CALL_CLIENT_AWAIT_REPLY, /* - client awaiting reply */ | |
489 | RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */ | |
00e90712 | 490 | RXRPC_CALL_SERVER_PREALLOC, /* - service preallocation */ |
5b8848d1 DH |
491 | RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */ |
492 | RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */ | |
493 | RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */ | |
494 | RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */ | |
495 | RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */ | |
496 | RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */ | |
f5c17aae | 497 | RXRPC_CALL_COMPLETE, /* - call complete */ |
f5c17aae DH |
498 | NR__RXRPC_CALL_STATES |
499 | }; | |
500 | ||
57494343 DH |
501 | /* |
502 | * Call Tx congestion management modes. | |
503 | */ | |
504 | enum rxrpc_congest_mode { | |
505 | RXRPC_CALL_SLOW_START, | |
506 | RXRPC_CALL_CONGEST_AVOIDANCE, | |
507 | RXRPC_CALL_PACKET_LOSS, | |
508 | RXRPC_CALL_FAST_RETRANSMIT, | |
509 | NR__RXRPC_CONGEST_MODES | |
510 | }; | |
511 | ||
17926a79 DH |
512 | /* |
513 | * RxRPC call definition | |
514 | * - matched by { connection, call_id } | |
515 | */ | |
516 | struct rxrpc_call { | |
dee46364 | 517 | struct rcu_head rcu; |
17926a79 | 518 | struct rxrpc_connection *conn; /* connection carrying call */ |
df5d8bf7 | 519 | struct rxrpc_peer *peer; /* Peer record for remote address */ |
8d94aa38 | 520 | struct rxrpc_sock __rcu *socket; /* socket responsible */ |
540b1c48 | 521 | struct mutex user_mutex; /* User access mutex */ |
a158bdd3 | 522 | unsigned long ack_at; /* When deferred ACK needs to happen */ |
bd1fdf8c | 523 | unsigned long ack_lost_at; /* When ACK is figured as lost */ |
a158bdd3 DH |
524 | unsigned long resend_at; /* When next resend needs to happen */ |
525 | unsigned long ping_at; /* When next to send a ping */ | |
415f44e4 | 526 | unsigned long keepalive_at; /* When next to send a keepalive ping */ |
a158bdd3 DH |
527 | unsigned long expect_rx_by; /* When we expect to get a packet by */ |
528 | unsigned long expect_req_by; /* When we expect to get a request DATA packet by */ | |
529 | unsigned long expect_term_by; /* When we expect call termination by */ | |
530 | u32 next_rx_timo; /* Timeout for next Rx packet (jif) */ | |
531 | u32 next_req_timo; /* Timeout for next Rx request packet (jif) */ | |
248f219c DH |
532 | struct timer_list timer; /* Combined event timer */ |
533 | struct work_struct processor; /* Event processor */ | |
d001648e | 534 | rxrpc_notify_rx_t notify_rx; /* kernel service Rx notification function */ |
17926a79 | 535 | struct list_head link; /* link in master call list */ |
45025bce | 536 | struct list_head chan_wait_link; /* Link in conn->waiting_calls */ |
f66d7490 | 537 | struct hlist_node error_link; /* link in error distribution list */ |
248f219c DH |
538 | struct list_head accept_link; /* Link in rx->acceptq */ |
539 | struct list_head recvmsg_link; /* Link in rx->recvmsg_q */ | |
540 | struct list_head sock_link; /* Link in rx->sock_calls */ | |
541 | struct rb_node sock_node; /* Node in rx->calls */ | |
17926a79 | 542 | struct sk_buff *tx_pending; /* Tx socket buffer being filled */ |
45025bce | 543 | wait_queue_head_t waitq; /* Wait queue for channel or Tx */ |
e754eba6 | 544 | s64 tx_total_len; /* Total length left to be transmitted (or -1) */ |
a263629d | 545 | __be32 crypto_buf[2]; /* Temporary packet crypto buffer */ |
17926a79 | 546 | unsigned long user_call_ID; /* user-defined call ID */ |
17926a79 | 547 | unsigned long flags; |
17926a79 | 548 | unsigned long events; |
17926a79 | 549 | spinlock_t lock; |
20acbd9a | 550 | spinlock_t notify_lock; /* Kernel notification lock */ |
17926a79 | 551 | rwlock_t state_lock; /* lock for state transition */ |
f5c17aae DH |
552 | u32 abort_code; /* Local/remote abort code */ |
553 | int error; /* Local error incurred */ | |
cf13258f DH |
554 | enum rxrpc_call_state state; /* current state of call */ |
555 | enum rxrpc_call_completion completion; /* Call completion condition */ | |
17926a79 | 556 | atomic_t usage; |
dabe5a79 | 557 | u16 service_id; /* service ID */ |
278ac0cd | 558 | u8 security_ix; /* Security type */ |
dabe5a79 DH |
559 | u32 call_id; /* call ID on connection */ |
560 | u32 cid; /* connection ID plus channel index */ | |
561 | int debug_id; /* debug ID for printks */ | |
8e83134d DH |
562 | unsigned short rx_pkt_offset; /* Current recvmsg packet offset */ |
563 | unsigned short rx_pkt_len; /* Current recvmsg packet len */ | |
17926a79 | 564 | |
248f219c DH |
565 | /* Rx/Tx circular buffer, depending on phase. |
566 | * | |
567 | * In the Rx phase, packets are annotated with 0 or the number of the | |
568 | * segment of a jumbo packet each buffer refers to. There can be up to | |
569 | * 47 segments in a maximum-size UDP packet. | |
570 | * | |
571 | * In the Tx phase, packets are annotated with which buffers have been | |
572 | * acked. | |
573 | */ | |
574 | #define RXRPC_RXTX_BUFF_SIZE 64 | |
575 | #define RXRPC_RXTX_BUFF_MASK (RXRPC_RXTX_BUFF_SIZE - 1) | |
75e42126 | 576 | #define RXRPC_INIT_RX_WINDOW_SIZE 32 |
248f219c DH |
577 | struct sk_buff **rxtx_buffer; |
578 | u8 *rxtx_annotations; | |
579 | #define RXRPC_TX_ANNO_ACK 0 | |
580 | #define RXRPC_TX_ANNO_UNACK 1 | |
581 | #define RXRPC_TX_ANNO_NAK 2 | |
582 | #define RXRPC_TX_ANNO_RETRANS 3 | |
f07373ea | 583 | #define RXRPC_TX_ANNO_MASK 0x03 |
70790dbe DH |
584 | #define RXRPC_TX_ANNO_LAST 0x04 |
585 | #define RXRPC_TX_ANNO_RESENT 0x08 | |
586 | ||
248f219c DH |
587 | #define RXRPC_RX_ANNO_JUMBO 0x3f /* Jumbo subpacket number + 1 if not zero */ |
588 | #define RXRPC_RX_ANNO_JLAST 0x40 /* Set if last element of a jumbo packet */ | |
589 | #define RXRPC_RX_ANNO_VERIFIED 0x80 /* Set if verified and decrypted */ | |
590 | rxrpc_seq_t tx_hard_ack; /* Dead slot in buffer; the first transmitted but | |
591 | * not hard-ACK'd packet follows this. | |
592 | */ | |
593 | rxrpc_seq_t tx_top; /* Highest Tx slot allocated. */ | |
57494343 DH |
594 | |
595 | /* TCP-style slow-start congestion control [RFC5681]. Since the SMSS | |
596 | * is fixed, we keep these numbers in terms of segments (ie. DATA | |
597 | * packets) rather than bytes. | |
598 | */ | |
599 | #define RXRPC_TX_SMSS RXRPC_JUMBO_DATALEN | |
600 | u8 cong_cwnd; /* Congestion window size */ | |
601 | u8 cong_extra; /* Extra to send for congestion management */ | |
602 | u8 cong_ssthresh; /* Slow-start threshold */ | |
603 | enum rxrpc_congest_mode cong_mode:8; /* Congestion management mode */ | |
604 | u8 cong_dup_acks; /* Count of ACKs showing missing packets */ | |
605 | u8 cong_cumul_acks; /* Cumulative ACK count */ | |
606 | ktime_t cong_tstamp; /* Last time cwnd was changed */ | |
607 | ||
248f219c DH |
608 | rxrpc_seq_t rx_hard_ack; /* Dead slot in buffer; the first received but not |
609 | * consumed packet follows this. | |
17926a79 | 610 | */ |
248f219c DH |
611 | rxrpc_seq_t rx_top; /* Highest Rx slot allocated. */ |
612 | rxrpc_seq_t rx_expect_next; /* Expected next packet sequence number */ | |
613 | u8 rx_winsize; /* Size of Rx window */ | |
614 | u8 tx_winsize; /* Maximum size of Tx window */ | |
71f3ca40 | 615 | bool tx_phase; /* T if transmission phase, F if receive phase */ |
75e42126 | 616 | u8 nr_jumbo_bad; /* Number of jumbo dups/exceeds-windows */ |
17926a79 DH |
617 | |
618 | /* receive-phase ACK management */ | |
4e36a95e | 619 | u8 ackr_reason; /* reason to ACK */ |
563ea7d5 | 620 | u16 ackr_skew; /* skew on packet being ACK'd */ |
0d12f8a4 | 621 | rxrpc_serial_t ackr_serial; /* serial of packet being ACK'd */ |
248f219c | 622 | rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */ |
805b21b9 DH |
623 | rxrpc_seq_t ackr_consumed; /* Highest packet shown consumed */ |
624 | rxrpc_seq_t ackr_seen; /* Highest packet shown seen */ | |
a5af7e1f DH |
625 | |
626 | /* ping management */ | |
627 | rxrpc_serial_t ping_serial; /* Last ping sent */ | |
628 | ktime_t ping_time; /* Time last ping sent */ | |
17926a79 | 629 | |
248f219c | 630 | /* transmission-phase ACK management */ |
57494343 | 631 | ktime_t acks_latest_ts; /* Timestamp of latest ACK received */ |
248f219c | 632 | rxrpc_serial_t acks_latest; /* serial number of latest ACK received */ |
31a1b989 | 633 | rxrpc_seq_t acks_lowest_nak; /* Lowest NACK in the buffer (or ==tx_hard_ack) */ |
bd1fdf8c DH |
634 | rxrpc_seq_t acks_lost_top; /* tx_top at the time lost-ack ping sent */ |
635 | rxrpc_serial_t acks_lost_ping; /* Serial number of probe ACK */ | |
31a1b989 DH |
636 | }; |
637 | ||
638 | /* | |
57494343 | 639 | * Summary of a new ACK and the changes it made to the Tx buffer packet states. |
31a1b989 DH |
640 | */ |
641 | struct rxrpc_ack_summary { | |
642 | u8 ack_reason; | |
643 | u8 nr_acks; /* Number of ACKs in packet */ | |
644 | u8 nr_nacks; /* Number of NACKs in packet */ | |
645 | u8 nr_new_acks; /* Number of new ACKs in packet */ | |
646 | u8 nr_new_nacks; /* Number of new NACKs in packet */ | |
647 | u8 nr_rot_new_acks; /* Number of rotated new ACKs */ | |
648 | bool new_low_nack; /* T if new low NACK found */ | |
57494343 DH |
649 | bool retrans_timeo; /* T if reTx due to timeout happened */ |
650 | u8 flight_size; /* Number of unreceived transmissions */ | |
651 | /* Place to stash values for tracing */ | |
652 | enum rxrpc_congest_mode mode:8; | |
653 | u8 cwnd; | |
654 | u8 ssthresh; | |
655 | u8 dup_acks; | |
656 | u8 cumulative_acks; | |
17926a79 DH |
657 | }; |
658 | ||
48124178 DH |
659 | /* |
660 | * sendmsg() cmsg-specified parameters. | |
661 | */ | |
662 | enum rxrpc_command { | |
663 | RXRPC_CMD_SEND_DATA, /* send data message */ | |
664 | RXRPC_CMD_SEND_ABORT, /* request abort generation */ | |
665 | RXRPC_CMD_ACCEPT, /* [server] accept incoming call */ | |
666 | RXRPC_CMD_REJECT_BUSY, /* [server] reject a call as busy */ | |
667 | }; | |
668 | ||
669 | struct rxrpc_call_params { | |
670 | s64 tx_total_len; /* Total Tx data length (if send data) */ | |
671 | unsigned long user_call_ID; /* User's call ID */ | |
672 | struct { | |
673 | u32 hard; /* Maximum lifetime (sec) */ | |
674 | u32 idle; /* Max time since last data packet (msec) */ | |
675 | u32 normal; /* Max time since last call packet (msec) */ | |
676 | } timeouts; | |
677 | u8 nr_timeouts; /* Number of timeouts specified */ | |
678 | }; | |
679 | ||
680 | struct rxrpc_send_params { | |
681 | struct rxrpc_call_params call; | |
682 | u32 abort_code; /* Abort code to Tx (if abort) */ | |
683 | enum rxrpc_command command : 8; /* The command to implement */ | |
684 | bool exclusive; /* Shared or exclusive call */ | |
685 | bool upgrade; /* If the connection is upgradeable */ | |
686 | }; | |
687 | ||
df844fd4 DH |
688 | #include <trace/events/rxrpc.h> |
689 | ||
17926a79 | 690 | /* |
651350d1 | 691 | * af_rxrpc.c |
17926a79 | 692 | */ |
71f3ca40 | 693 | extern atomic_t rxrpc_n_tx_skbs, rxrpc_n_rx_skbs; |
651350d1 DH |
694 | extern atomic_t rxrpc_debug_id; |
695 | extern struct workqueue_struct *rxrpc_workqueue; | |
17926a79 DH |
696 | |
697 | /* | |
0d81a51a | 698 | * call_accept.c |
17926a79 | 699 | */ |
00e90712 DH |
700 | int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t); |
701 | void rxrpc_discard_prealloc(struct rxrpc_sock *); | |
248f219c DH |
702 | struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *, |
703 | struct rxrpc_connection *, | |
704 | struct sk_buff *); | |
4f95dd78 | 705 | void rxrpc_accept_incoming_calls(struct rxrpc_local *); |
d001648e DH |
706 | struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long, |
707 | rxrpc_notify_rx_t); | |
c1b1203d | 708 | int rxrpc_reject_call(struct rxrpc_sock *); |
17926a79 DH |
709 | |
710 | /* | |
0d81a51a | 711 | * call_event.c |
17926a79 | 712 | */ |
9c7ad434 DH |
713 | void rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool, bool, |
714 | enum rxrpc_propose_ack_trace); | |
c1b1203d | 715 | void rxrpc_process_call(struct work_struct *); |
17926a79 | 716 | |
a158bdd3 DH |
717 | static inline void rxrpc_reduce_call_timer(struct rxrpc_call *call, |
718 | unsigned long expire_at, | |
719 | unsigned long now, | |
720 | enum rxrpc_timer_trace why) | |
721 | { | |
722 | trace_rxrpc_timer(call, why, now); | |
723 | timer_reduce(&call->timer, expire_at); | |
724 | } | |
725 | ||
17926a79 | 726 | /* |
0d81a51a | 727 | * call_object.c |
17926a79 | 728 | */ |
f5c17aae DH |
729 | extern const char *const rxrpc_call_states[]; |
730 | extern const char *const rxrpc_call_completions[]; | |
dad8aff7 | 731 | extern unsigned int rxrpc_max_call_lifetime; |
17926a79 | 732 | extern struct kmem_cache *rxrpc_call_jar; |
17926a79 | 733 | |
2341e077 | 734 | struct rxrpc_call *rxrpc_find_call_by_user_ID(struct rxrpc_sock *, unsigned long); |
9faaff59 | 735 | struct rxrpc_call *rxrpc_alloc_call(struct rxrpc_sock *, gfp_t); |
2341e077 | 736 | struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *, |
19ffa01c | 737 | struct rxrpc_conn_parameters *, |
999b69f8 | 738 | struct sockaddr_rxrpc *, |
48124178 | 739 | struct rxrpc_call_params *, gfp_t); |
c038a58c DH |
740 | int rxrpc_retry_client_call(struct rxrpc_sock *, |
741 | struct rxrpc_call *, | |
742 | struct rxrpc_conn_parameters *, | |
743 | struct sockaddr_rxrpc *, | |
744 | gfp_t); | |
248f219c DH |
745 | void rxrpc_incoming_call(struct rxrpc_sock *, struct rxrpc_call *, |
746 | struct sk_buff *); | |
8d94aa38 | 747 | void rxrpc_release_call(struct rxrpc_sock *, struct rxrpc_call *); |
c038a58c | 748 | int rxrpc_prepare_call_for_retry(struct rxrpc_sock *, struct rxrpc_call *); |
c1b1203d | 749 | void rxrpc_release_calls_on_socket(struct rxrpc_sock *); |
8d94aa38 DH |
750 | bool __rxrpc_queue_call(struct rxrpc_call *); |
751 | bool rxrpc_queue_call(struct rxrpc_call *); | |
e34d4234 | 752 | void rxrpc_see_call(struct rxrpc_call *); |
fff72429 DH |
753 | void rxrpc_get_call(struct rxrpc_call *, enum rxrpc_call_trace); |
754 | void rxrpc_put_call(struct rxrpc_call *, enum rxrpc_call_trace); | |
00e90712 | 755 | void rxrpc_cleanup_call(struct rxrpc_call *); |
2baec2c3 | 756 | void rxrpc_destroy_all_calls(struct rxrpc_net *); |
17926a79 | 757 | |
dabe5a79 DH |
758 | static inline bool rxrpc_is_service_call(const struct rxrpc_call *call) |
759 | { | |
760 | return test_bit(RXRPC_CALL_IS_SERVICE, &call->flags); | |
761 | } | |
762 | ||
763 | static inline bool rxrpc_is_client_call(const struct rxrpc_call *call) | |
764 | { | |
765 | return !rxrpc_is_service_call(call); | |
766 | } | |
767 | ||
f5c17aae DH |
768 | /* |
769 | * Transition a call to the complete state. | |
770 | */ | |
771 | static inline bool __rxrpc_set_call_completion(struct rxrpc_call *call, | |
772 | enum rxrpc_call_completion compl, | |
773 | u32 abort_code, | |
774 | int error) | |
775 | { | |
776 | if (call->state < RXRPC_CALL_COMPLETE) { | |
777 | call->abort_code = abort_code; | |
778 | call->error = error; | |
779 | call->completion = compl, | |
780 | call->state = RXRPC_CALL_COMPLETE; | |
c0d058c2 | 781 | wake_up(&call->waitq); |
f5c17aae DH |
782 | return true; |
783 | } | |
784 | return false; | |
785 | } | |
786 | ||
787 | static inline bool rxrpc_set_call_completion(struct rxrpc_call *call, | |
788 | enum rxrpc_call_completion compl, | |
789 | u32 abort_code, | |
790 | int error) | |
791 | { | |
e8d6bbb0 | 792 | bool ret; |
f5c17aae DH |
793 | |
794 | write_lock_bh(&call->state_lock); | |
795 | ret = __rxrpc_set_call_completion(call, compl, abort_code, error); | |
796 | write_unlock_bh(&call->state_lock); | |
797 | return ret; | |
798 | } | |
799 | ||
800 | /* | |
801 | * Record that a call successfully completed. | |
802 | */ | |
e8d6bbb0 | 803 | static inline bool __rxrpc_call_completed(struct rxrpc_call *call) |
f5c17aae | 804 | { |
e8d6bbb0 | 805 | return __rxrpc_set_call_completion(call, RXRPC_CALL_SUCCEEDED, 0, 0); |
f5c17aae DH |
806 | } |
807 | ||
e8d6bbb0 | 808 | static inline bool rxrpc_call_completed(struct rxrpc_call *call) |
f5c17aae | 809 | { |
e8d6bbb0 DH |
810 | bool ret; |
811 | ||
f5c17aae | 812 | write_lock_bh(&call->state_lock); |
e8d6bbb0 | 813 | ret = __rxrpc_call_completed(call); |
f5c17aae | 814 | write_unlock_bh(&call->state_lock); |
e8d6bbb0 | 815 | return ret; |
f5c17aae DH |
816 | } |
817 | ||
818 | /* | |
819 | * Record that a call is locally aborted. | |
820 | */ | |
5a42976d DH |
821 | static inline bool __rxrpc_abort_call(const char *why, struct rxrpc_call *call, |
822 | rxrpc_seq_t seq, | |
f5c17aae DH |
823 | u32 abort_code, int error) |
824 | { | |
5a42976d DH |
825 | trace_rxrpc_abort(why, call->cid, call->call_id, seq, |
826 | abort_code, error); | |
248f219c DH |
827 | return __rxrpc_set_call_completion(call, RXRPC_CALL_LOCALLY_ABORTED, |
828 | abort_code, error); | |
f5c17aae DH |
829 | } |
830 | ||
5a42976d DH |
831 | static inline bool rxrpc_abort_call(const char *why, struct rxrpc_call *call, |
832 | rxrpc_seq_t seq, u32 abort_code, int error) | |
f5c17aae DH |
833 | { |
834 | bool ret; | |
835 | ||
836 | write_lock_bh(&call->state_lock); | |
5a42976d | 837 | ret = __rxrpc_abort_call(why, call, seq, abort_code, error); |
f5c17aae DH |
838 | write_unlock_bh(&call->state_lock); |
839 | return ret; | |
840 | } | |
841 | ||
fb46f6ee DH |
842 | /* |
843 | * Abort a call due to a protocol error. | |
844 | */ | |
845 | static inline bool __rxrpc_abort_eproto(struct rxrpc_call *call, | |
846 | struct sk_buff *skb, | |
847 | const char *eproto_why, | |
848 | const char *why, | |
849 | u32 abort_code) | |
850 | { | |
851 | struct rxrpc_skb_priv *sp = rxrpc_skb(skb); | |
852 | ||
853 | trace_rxrpc_rx_eproto(call, sp->hdr.serial, eproto_why); | |
854 | return rxrpc_abort_call(why, call, sp->hdr.seq, abort_code, -EPROTO); | |
855 | } | |
856 | ||
857 | #define rxrpc_abort_eproto(call, skb, eproto_why, abort_why, abort_code) \ | |
858 | __rxrpc_abort_eproto((call), (skb), tracepoint_string(eproto_why), \ | |
859 | (abort_why), (abort_code)) | |
860 | ||
4a3388c8 DH |
861 | /* |
862 | * conn_client.c | |
863 | */ | |
45025bce DH |
864 | extern unsigned int rxrpc_max_client_connections; |
865 | extern unsigned int rxrpc_reap_client_connections; | |
a158bdd3 DH |
866 | extern unsigned long rxrpc_conn_idle_client_expiry; |
867 | extern unsigned long rxrpc_conn_idle_client_fast_expiry; | |
4a3388c8 DH |
868 | extern struct idr rxrpc_client_conn_ids; |
869 | ||
eb9b9d22 | 870 | void rxrpc_destroy_client_conn_ids(void); |
c6d2b8d7 DH |
871 | int rxrpc_connect_call(struct rxrpc_call *, struct rxrpc_conn_parameters *, |
872 | struct sockaddr_rxrpc *, gfp_t); | |
45025bce DH |
873 | void rxrpc_expose_client_call(struct rxrpc_call *); |
874 | void rxrpc_disconnect_client_call(struct rxrpc_call *); | |
875 | void rxrpc_put_client_conn(struct rxrpc_connection *); | |
2baec2c3 DH |
876 | void rxrpc_discard_expired_client_conns(struct work_struct *); |
877 | void rxrpc_destroy_all_client_connections(struct rxrpc_net *); | |
4a3388c8 | 878 | |
17926a79 | 879 | /* |
0d81a51a DH |
880 | * conn_event.c |
881 | */ | |
882 | void rxrpc_process_connection(struct work_struct *); | |
0d81a51a DH |
883 | |
884 | /* | |
885 | * conn_object.c | |
17926a79 | 886 | */ |
dad8aff7 | 887 | extern unsigned int rxrpc_connection_expiry; |
f859ab61 | 888 | extern unsigned int rxrpc_closed_conn_expiry; |
17926a79 | 889 | |
c6d2b8d7 | 890 | struct rxrpc_connection *rxrpc_alloc_connection(gfp_t); |
8496af50 DH |
891 | struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *, |
892 | struct sk_buff *); | |
45025bce | 893 | void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *); |
999b69f8 | 894 | void rxrpc_disconnect_call(struct rxrpc_call *); |
45025bce | 895 | void rxrpc_kill_connection(struct rxrpc_connection *); |
363deeab DH |
896 | bool rxrpc_queue_conn(struct rxrpc_connection *); |
897 | void rxrpc_see_connection(struct rxrpc_connection *); | |
898 | void rxrpc_get_connection(struct rxrpc_connection *); | |
899 | struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *); | |
900 | void rxrpc_put_service_conn(struct rxrpc_connection *); | |
2baec2c3 DH |
901 | void rxrpc_service_connection_reaper(struct work_struct *); |
902 | void rxrpc_destroy_all_connections(struct rxrpc_net *); | |
17926a79 | 903 | |
19ffa01c DH |
904 | static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn) |
905 | { | |
906 | return conn->out_clientflag; | |
907 | } | |
908 | ||
909 | static inline bool rxrpc_conn_is_service(const struct rxrpc_connection *conn) | |
910 | { | |
e8d70ce1 | 911 | return !rxrpc_conn_is_client(conn); |
19ffa01c DH |
912 | } |
913 | ||
f51b4480 DH |
914 | static inline void rxrpc_put_connection(struct rxrpc_connection *conn) |
915 | { | |
45025bce DH |
916 | if (!conn) |
917 | return; | |
918 | ||
363deeab DH |
919 | if (rxrpc_conn_is_client(conn)) |
920 | rxrpc_put_client_conn(conn); | |
921 | else | |
922 | rxrpc_put_service_conn(conn); | |
5acbee46 DH |
923 | } |
924 | ||
3136ef49 DH |
925 | static inline void rxrpc_reduce_conn_timer(struct rxrpc_connection *conn, |
926 | unsigned long expire_at) | |
927 | { | |
928 | timer_reduce(&conn->timer, expire_at); | |
929 | } | |
930 | ||
7877a4a4 DH |
931 | /* |
932 | * conn_service.c | |
933 | */ | |
8496af50 DH |
934 | struct rxrpc_connection *rxrpc_find_service_conn_rcu(struct rxrpc_peer *, |
935 | struct sk_buff *); | |
2baec2c3 | 936 | struct rxrpc_connection *rxrpc_prealloc_service_connection(struct rxrpc_net *, gfp_t); |
4722974d DH |
937 | void rxrpc_new_incoming_connection(struct rxrpc_sock *, |
938 | struct rxrpc_connection *, struct sk_buff *); | |
001c1122 | 939 | void rxrpc_unpublish_service_conn(struct rxrpc_connection *); |
7877a4a4 | 940 | |
17926a79 | 941 | /* |
0d81a51a | 942 | * input.c |
17926a79 | 943 | */ |
0d81a51a | 944 | void rxrpc_data_ready(struct sock *); |
17926a79 DH |
945 | |
946 | /* | |
0d81a51a | 947 | * insecure.c |
17926a79 | 948 | */ |
0d81a51a | 949 | extern const struct rxrpc_security rxrpc_no_security; |
17926a79 DH |
950 | |
951 | /* | |
0d81a51a | 952 | * key.c |
17926a79 | 953 | */ |
0d81a51a DH |
954 | extern struct key_type key_type_rxrpc; |
955 | extern struct key_type key_type_rxrpc_s; | |
956 | ||
957 | int rxrpc_request_key(struct rxrpc_sock *, char __user *, int); | |
958 | int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int); | |
10674a03 | 959 | int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time64_t, |
0d81a51a | 960 | u32); |
17926a79 | 961 | |
87563616 DH |
962 | /* |
963 | * local_event.c | |
964 | */ | |
4f95dd78 | 965 | extern void rxrpc_process_local_events(struct rxrpc_local *); |
87563616 | 966 | |
17926a79 | 967 | /* |
0d81a51a | 968 | * local_object.c |
17926a79 | 969 | */ |
2baec2c3 | 970 | struct rxrpc_local *rxrpc_lookup_local(struct net *, const struct sockaddr_rxrpc *); |
4f95dd78 | 971 | void __rxrpc_put_local(struct rxrpc_local *); |
2baec2c3 | 972 | void rxrpc_destroy_all_locals(struct rxrpc_net *); |
17926a79 | 973 | |
4f95dd78 DH |
974 | static inline void rxrpc_get_local(struct rxrpc_local *local) |
975 | { | |
976 | atomic_inc(&local->usage); | |
977 | } | |
978 | ||
979 | static inline | |
980 | struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local) | |
981 | { | |
982 | return atomic_inc_not_zero(&local->usage) ? local : NULL; | |
983 | } | |
984 | ||
985 | static inline void rxrpc_put_local(struct rxrpc_local *local) | |
986 | { | |
5627cc8b | 987 | if (local && atomic_dec_and_test(&local->usage)) |
4f95dd78 DH |
988 | __rxrpc_put_local(local); |
989 | } | |
990 | ||
5acbee46 DH |
991 | static inline void rxrpc_queue_local(struct rxrpc_local *local) |
992 | { | |
993 | rxrpc_queue_work(&local->processor); | |
994 | } | |
995 | ||
17926a79 | 996 | /* |
0d81a51a | 997 | * misc.c |
17926a79 | 998 | */ |
0d81a51a | 999 | extern unsigned int rxrpc_max_backlog __read_mostly; |
a158bdd3 DH |
1000 | extern unsigned long rxrpc_requested_ack_delay; |
1001 | extern unsigned long rxrpc_soft_ack_delay; | |
1002 | extern unsigned long rxrpc_idle_ack_delay; | |
0d81a51a DH |
1003 | extern unsigned int rxrpc_rx_window_size; |
1004 | extern unsigned int rxrpc_rx_mtu; | |
1005 | extern unsigned int rxrpc_rx_jumbo_max; | |
a158bdd3 | 1006 | extern unsigned long rxrpc_resend_timeout; |
17926a79 | 1007 | |
0d81a51a DH |
1008 | extern const s8 rxrpc_ack_priority[]; |
1009 | ||
2baec2c3 DH |
1010 | /* |
1011 | * net_ns.c | |
1012 | */ | |
1013 | extern unsigned int rxrpc_net_id; | |
1014 | extern struct pernet_operations rxrpc_net_ops; | |
1015 | ||
1016 | static inline struct rxrpc_net *rxrpc_net(struct net *net) | |
1017 | { | |
1018 | return net_generic(net, rxrpc_net_id); | |
1019 | } | |
1020 | ||
17926a79 | 1021 | /* |
0d81a51a | 1022 | * output.c |
17926a79 | 1023 | */ |
bd1fdf8c | 1024 | int rxrpc_send_ack_packet(struct rxrpc_call *, bool, rxrpc_serial_t *); |
26cb02aa | 1025 | int rxrpc_send_abort_packet(struct rxrpc_call *); |
a1767077 | 1026 | int rxrpc_send_data_packet(struct rxrpc_call *, struct sk_buff *, bool); |
248f219c | 1027 | void rxrpc_reject_packets(struct rxrpc_local *); |
17926a79 DH |
1028 | |
1029 | /* | |
abe89ef0 | 1030 | * peer_event.c |
0d81a51a | 1031 | */ |
abe89ef0 | 1032 | void rxrpc_error_report(struct sock *); |
f66d7490 | 1033 | void rxrpc_peer_error_distributor(struct work_struct *); |
cf1a6474 DH |
1034 | void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace, |
1035 | rxrpc_serial_t, rxrpc_serial_t, ktime_t, ktime_t); | |
0d81a51a DH |
1036 | |
1037 | /* | |
1038 | * peer_object.c | |
17926a79 | 1039 | */ |
be6e6707 DH |
1040 | struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *, |
1041 | const struct sockaddr_rxrpc *); | |
1042 | struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *, | |
1043 | struct sockaddr_rxrpc *, gfp_t); | |
1044 | struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t); | |
248f219c DH |
1045 | struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *, |
1046 | struct rxrpc_peer *); | |
be6e6707 | 1047 | |
df5d8bf7 | 1048 | static inline struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer) |
be6e6707 DH |
1049 | { |
1050 | atomic_inc(&peer->usage); | |
df5d8bf7 | 1051 | return peer; |
be6e6707 DH |
1052 | } |
1053 | ||
1054 | static inline | |
1055 | struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer) | |
1056 | { | |
1057 | return atomic_inc_not_zero(&peer->usage) ? peer : NULL; | |
1058 | } | |
1059 | ||
1060 | extern void __rxrpc_put_peer(struct rxrpc_peer *peer); | |
1061 | static inline void rxrpc_put_peer(struct rxrpc_peer *peer) | |
1062 | { | |
5627cc8b | 1063 | if (peer && atomic_dec_and_test(&peer->usage)) |
be6e6707 DH |
1064 | __rxrpc_put_peer(peer); |
1065 | } | |
17926a79 DH |
1066 | |
1067 | /* | |
0d81a51a | 1068 | * proc.c |
17926a79 | 1069 | */ |
036c2e27 JE |
1070 | extern const struct file_operations rxrpc_call_seq_fops; |
1071 | extern const struct file_operations rxrpc_connection_seq_fops; | |
17926a79 DH |
1072 | |
1073 | /* | |
0d81a51a | 1074 | * recvmsg.c |
17926a79 | 1075 | */ |
248f219c | 1076 | void rxrpc_notify_socket(struct rxrpc_call *); |
1b784140 | 1077 | int rxrpc_recvmsg(struct socket *, struct msghdr *, size_t, int); |
17926a79 DH |
1078 | |
1079 | /* | |
0d81a51a DH |
1080 | * rxkad.c |
1081 | */ | |
1082 | #ifdef CONFIG_RXKAD | |
1083 | extern const struct rxrpc_security rxkad; | |
1084 | #endif | |
1085 | ||
1086 | /* | |
1087 | * security.c | |
17926a79 | 1088 | */ |
648af7fc DH |
1089 | int __init rxrpc_init_security(void); |
1090 | void rxrpc_exit_security(void); | |
c1b1203d JP |
1091 | int rxrpc_init_client_conn_security(struct rxrpc_connection *); |
1092 | int rxrpc_init_server_conn_security(struct rxrpc_connection *); | |
71a17de3 | 1093 | |
0b58b8a1 DH |
1094 | /* |
1095 | * sendmsg.c | |
1096 | */ | |
1097 | int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t); | |
17926a79 DH |
1098 | |
1099 | /* | |
0d81a51a | 1100 | * skbuff.c |
17926a79 | 1101 | */ |
d001648e | 1102 | void rxrpc_kernel_data_consumed(struct rxrpc_call *, struct sk_buff *); |
c1b1203d | 1103 | void rxrpc_packet_destructor(struct sk_buff *); |
71f3ca40 DH |
1104 | void rxrpc_new_skb(struct sk_buff *, enum rxrpc_skb_trace); |
1105 | void rxrpc_see_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
1106 | void rxrpc_get_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
1107 | void rxrpc_free_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
1108 | void rxrpc_lose_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
df844fd4 | 1109 | void rxrpc_purge_queue(struct sk_buff_head *); |
17926a79 | 1110 | |
5873c083 DH |
1111 | /* |
1112 | * sysctl.c | |
1113 | */ | |
1114 | #ifdef CONFIG_SYSCTL | |
1115 | extern int __init rxrpc_sysctl_init(void); | |
1116 | extern void rxrpc_sysctl_exit(void); | |
1117 | #else | |
1118 | static inline int __init rxrpc_sysctl_init(void) { return 0; } | |
1119 | static inline void rxrpc_sysctl_exit(void) {} | |
1120 | #endif | |
1121 | ||
be6e6707 DH |
1122 | /* |
1123 | * utils.c | |
1124 | */ | |
7b674e39 DH |
1125 | int rxrpc_extract_addr_from_skb(struct rxrpc_local *, struct sockaddr_rxrpc *, |
1126 | struct sk_buff *); | |
be6e6707 | 1127 | |
248f219c DH |
1128 | static inline bool before(u32 seq1, u32 seq2) |
1129 | { | |
1130 | return (s32)(seq1 - seq2) < 0; | |
1131 | } | |
1132 | static inline bool before_eq(u32 seq1, u32 seq2) | |
1133 | { | |
1134 | return (s32)(seq1 - seq2) <= 0; | |
1135 | } | |
1136 | static inline bool after(u32 seq1, u32 seq2) | |
1137 | { | |
1138 | return (s32)(seq1 - seq2) > 0; | |
1139 | } | |
1140 | static inline bool after_eq(u32 seq1, u32 seq2) | |
1141 | { | |
1142 | return (s32)(seq1 - seq2) >= 0; | |
1143 | } | |
1144 | ||
17926a79 DH |
1145 | /* |
1146 | * debug tracing | |
1147 | */ | |
95c96174 | 1148 | extern unsigned int rxrpc_debug; |
17926a79 DH |
1149 | |
1150 | #define dbgprintk(FMT,...) \ | |
9f389f4b | 1151 | printk("[%-6.6s] "FMT"\n", current->comm ,##__VA_ARGS__) |
17926a79 | 1152 | |
0dc47877 HH |
1153 | #define kenter(FMT,...) dbgprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__) |
1154 | #define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) | |
17926a79 DH |
1155 | #define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__) |
1156 | #define kproto(FMT,...) dbgprintk("### "FMT ,##__VA_ARGS__) | |
1157 | #define knet(FMT,...) dbgprintk("@@@ "FMT ,##__VA_ARGS__) | |
1158 | ||
1159 | ||
1160 | #if defined(__KDEBUG) | |
1161 | #define _enter(FMT,...) kenter(FMT,##__VA_ARGS__) | |
1162 | #define _leave(FMT,...) kleave(FMT,##__VA_ARGS__) | |
1163 | #define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__) | |
1164 | #define _proto(FMT,...) kproto(FMT,##__VA_ARGS__) | |
1165 | #define _net(FMT,...) knet(FMT,##__VA_ARGS__) | |
1166 | ||
1167 | #elif defined(CONFIG_AF_RXRPC_DEBUG) | |
1168 | #define RXRPC_DEBUG_KENTER 0x01 | |
1169 | #define RXRPC_DEBUG_KLEAVE 0x02 | |
1170 | #define RXRPC_DEBUG_KDEBUG 0x04 | |
1171 | #define RXRPC_DEBUG_KPROTO 0x08 | |
1172 | #define RXRPC_DEBUG_KNET 0x10 | |
1173 | ||
1174 | #define _enter(FMT,...) \ | |
1175 | do { \ | |
1176 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KENTER)) \ | |
1177 | kenter(FMT,##__VA_ARGS__); \ | |
1178 | } while (0) | |
1179 | ||
1180 | #define _leave(FMT,...) \ | |
1181 | do { \ | |
1182 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KLEAVE)) \ | |
1183 | kleave(FMT,##__VA_ARGS__); \ | |
1184 | } while (0) | |
1185 | ||
1186 | #define _debug(FMT,...) \ | |
1187 | do { \ | |
1188 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KDEBUG)) \ | |
1189 | kdebug(FMT,##__VA_ARGS__); \ | |
1190 | } while (0) | |
1191 | ||
1192 | #define _proto(FMT,...) \ | |
1193 | do { \ | |
1194 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KPROTO)) \ | |
1195 | kproto(FMT,##__VA_ARGS__); \ | |
1196 | } while (0) | |
1197 | ||
1198 | #define _net(FMT,...) \ | |
1199 | do { \ | |
1200 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KNET)) \ | |
1201 | knet(FMT,##__VA_ARGS__); \ | |
1202 | } while (0) | |
1203 | ||
1204 | #else | |
12fdff3f DH |
1205 | #define _enter(FMT,...) no_printk("==> %s("FMT")",__func__ ,##__VA_ARGS__) |
1206 | #define _leave(FMT,...) no_printk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) | |
1207 | #define _debug(FMT,...) no_printk(" "FMT ,##__VA_ARGS__) | |
1208 | #define _proto(FMT,...) no_printk("### "FMT ,##__VA_ARGS__) | |
1209 | #define _net(FMT,...) no_printk("@@@ "FMT ,##__VA_ARGS__) | |
17926a79 DH |
1210 | #endif |
1211 | ||
1212 | /* | |
1213 | * debug assertion checking | |
1214 | */ | |
1215 | #if 1 // defined(__KDEBUGALL) | |
1216 | ||
1217 | #define ASSERT(X) \ | |
1218 | do { \ | |
1219 | if (unlikely(!(X))) { \ | |
9b6d5398 | 1220 | pr_err("Assertion failed\n"); \ |
17926a79 DH |
1221 | BUG(); \ |
1222 | } \ | |
b4f1342f | 1223 | } while (0) |
17926a79 DH |
1224 | |
1225 | #define ASSERTCMP(X, OP, Y) \ | |
1226 | do { \ | |
cf13258f DH |
1227 | __typeof__(X) _x = (X); \ |
1228 | __typeof__(Y) _y = (__typeof__(X))(Y); \ | |
9b6d5398 | 1229 | if (unlikely(!(_x OP _y))) { \ |
cf13258f DH |
1230 | pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \ |
1231 | (unsigned long)_x, (unsigned long)_x, #OP, \ | |
1232 | (unsigned long)_y, (unsigned long)_y); \ | |
17926a79 DH |
1233 | BUG(); \ |
1234 | } \ | |
b4f1342f | 1235 | } while (0) |
17926a79 DH |
1236 | |
1237 | #define ASSERTIF(C, X) \ | |
1238 | do { \ | |
1239 | if (unlikely((C) && !(X))) { \ | |
9b6d5398 | 1240 | pr_err("Assertion failed\n"); \ |
17926a79 DH |
1241 | BUG(); \ |
1242 | } \ | |
b4f1342f | 1243 | } while (0) |
17926a79 DH |
1244 | |
1245 | #define ASSERTIFCMP(C, X, OP, Y) \ | |
1246 | do { \ | |
cf13258f DH |
1247 | __typeof__(X) _x = (X); \ |
1248 | __typeof__(Y) _y = (__typeof__(X))(Y); \ | |
9b6d5398 JP |
1249 | if (unlikely((C) && !(_x OP _y))) { \ |
1250 | pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \ | |
cf13258f DH |
1251 | (unsigned long)_x, (unsigned long)_x, #OP, \ |
1252 | (unsigned long)_y, (unsigned long)_y); \ | |
17926a79 DH |
1253 | BUG(); \ |
1254 | } \ | |
b4f1342f | 1255 | } while (0) |
17926a79 DH |
1256 | |
1257 | #else | |
1258 | ||
1259 | #define ASSERT(X) \ | |
1260 | do { \ | |
b4f1342f | 1261 | } while (0) |
17926a79 DH |
1262 | |
1263 | #define ASSERTCMP(X, OP, Y) \ | |
1264 | do { \ | |
b4f1342f | 1265 | } while (0) |
17926a79 DH |
1266 | |
1267 | #define ASSERTIF(C, X) \ | |
1268 | do { \ | |
b4f1342f | 1269 | } while (0) |
17926a79 DH |
1270 | |
1271 | #define ASSERTIFCMP(C, X, OP, Y) \ | |
1272 | do { \ | |
b4f1342f | 1273 | } while (0) |
17926a79 DH |
1274 | |
1275 | #endif /* __KDEBUGALL */ |