Commit | Line | Data |
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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
17926a79 DH |
2 | /* AF_RXRPC internal definitions |
3 | * | |
4 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
5 | * Written by David Howells (dhowells@redhat.com) | |
17926a79 DH |
6 | */ |
7 | ||
be6e6707 | 8 | #include <linux/atomic.h> |
8496af50 | 9 | #include <linux/seqlock.h> |
2baec2c3 DH |
10 | #include <net/net_namespace.h> |
11 | #include <net/netns/generic.h> | |
e0e4d82f | 12 | #include <net/sock.h> |
be6e6707 | 13 | #include <net/af_rxrpc.h> |
ddc6c70f | 14 | #include "protocol.h" |
17926a79 DH |
15 | |
16 | #if 0 | |
17 | #define CHECK_SLAB_OKAY(X) \ | |
18 | BUG_ON(atomic_read((X)) >> (sizeof(atomic_t) - 2) == \ | |
19 | (POISON_FREE << 8 | POISON_FREE)) | |
20 | #else | |
b4f1342f | 21 | #define CHECK_SLAB_OKAY(X) do {} while (0) |
17926a79 DH |
22 | #endif |
23 | ||
17926a79 DH |
24 | #define FCRYPT_BSIZE 8 |
25 | struct rxrpc_crypt { | |
26 | union { | |
27 | u8 x[FCRYPT_BSIZE]; | |
91e916cf | 28 | __be32 n[2]; |
17926a79 DH |
29 | }; |
30 | } __attribute__((aligned(8))); | |
31 | ||
651350d1 DH |
32 | #define rxrpc_queue_work(WS) queue_work(rxrpc_workqueue, (WS)) |
33 | #define rxrpc_queue_delayed_work(WS,D) \ | |
34 | queue_delayed_work(rxrpc_workqueue, (WS), (D)) | |
35 | ||
cc8feb8e DH |
36 | struct rxrpc_connection; |
37 | ||
d001648e | 38 | /* |
ece64fec DH |
39 | * Mark applied to socket buffers in skb->mark. skb->priority is used |
40 | * to pass supplementary information. | |
d001648e DH |
41 | */ |
42 | enum rxrpc_skb_mark { | |
ece64fec DH |
43 | RXRPC_SKB_MARK_REJECT_BUSY, /* Reject with BUSY */ |
44 | RXRPC_SKB_MARK_REJECT_ABORT, /* Reject with ABORT (code in skb->priority) */ | |
d001648e DH |
45 | }; |
46 | ||
17926a79 DH |
47 | /* |
48 | * sk_state for RxRPC sockets | |
49 | */ | |
50 | enum { | |
2341e077 DH |
51 | RXRPC_UNBOUND = 0, |
52 | RXRPC_CLIENT_UNBOUND, /* Unbound socket used as client */ | |
17926a79 | 53 | RXRPC_CLIENT_BOUND, /* client local address bound */ |
17926a79 | 54 | RXRPC_SERVER_BOUND, /* server local address bound */ |
28036f44 | 55 | RXRPC_SERVER_BOUND2, /* second server local address bound */ |
17926a79 | 56 | RXRPC_SERVER_LISTENING, /* server listening for connections */ |
210f0353 | 57 | RXRPC_SERVER_LISTEN_DISABLED, /* server listening disabled */ |
17926a79 DH |
58 | RXRPC_CLOSE, /* socket is being closed */ |
59 | }; | |
60 | ||
2baec2c3 DH |
61 | /* |
62 | * Per-network namespace data. | |
63 | */ | |
64 | struct rxrpc_net { | |
65 | struct proc_dir_entry *proc_net; /* Subdir in /proc/net */ | |
66 | u32 epoch; /* Local epoch for detecting local-end reset */ | |
67 | struct list_head calls; /* List of calls active in this namespace */ | |
68 | rwlock_t call_lock; /* Lock for ->calls */ | |
d3be4d24 | 69 | atomic_t nr_calls; /* Count of allocated calls */ |
2baec2c3 | 70 | |
31f5f9a1 | 71 | atomic_t nr_conns; |
2baec2c3 DH |
72 | struct list_head conn_proc_list; /* List of conns in this namespace for proc */ |
73 | struct list_head service_conns; /* Service conns in this namespace */ | |
74 | rwlock_t conn_lock; /* Lock for ->conn_proc_list, ->service_conns */ | |
3d18cbb7 DH |
75 | struct work_struct service_conn_reaper; |
76 | struct timer_list service_conn_reap_timer; | |
2baec2c3 DH |
77 | |
78 | unsigned int nr_client_conns; | |
79 | unsigned int nr_active_client_conns; | |
80 | bool kill_all_client_conns; | |
f859ab61 | 81 | bool live; |
2baec2c3 DH |
82 | spinlock_t client_conn_cache_lock; /* Lock for ->*_client_conns */ |
83 | spinlock_t client_conn_discard_lock; /* Prevent multiple discarders */ | |
84 | struct list_head waiting_client_conns; | |
85 | struct list_head active_client_conns; | |
86 | struct list_head idle_client_conns; | |
3d18cbb7 DH |
87 | struct work_struct client_conn_reaper; |
88 | struct timer_list client_conn_reap_timer; | |
2baec2c3 DH |
89 | |
90 | struct list_head local_endpoints; | |
91 | struct mutex local_mutex; /* Lock for ->local_endpoints */ | |
92 | ||
2baec2c3 | 93 | DECLARE_HASHTABLE (peer_hash, 10); |
ace45bec DH |
94 | spinlock_t peer_hash_lock; /* Lock for ->peer_hash */ |
95 | ||
96 | #define RXRPC_KEEPALIVE_TIME 20 /* NAT keepalive time in seconds */ | |
97 | u8 peer_keepalive_cursor; | |
330bdcfa DH |
98 | time64_t peer_keepalive_base; |
99 | struct list_head peer_keepalive[32]; | |
100 | struct list_head peer_keepalive_new; | |
ace45bec DH |
101 | struct timer_list peer_keepalive_timer; |
102 | struct work_struct peer_keepalive_work; | |
2baec2c3 DH |
103 | }; |
104 | ||
00e90712 DH |
105 | /* |
106 | * Service backlog preallocation. | |
107 | * | |
108 | * This contains circular buffers of preallocated peers, connections and calls | |
109 | * for incoming service calls and their head and tail pointers. This allows | |
110 | * calls to be set up in the data_ready handler, thereby avoiding the need to | |
111 | * shuffle packets around so much. | |
112 | */ | |
113 | struct rxrpc_backlog { | |
114 | unsigned short peer_backlog_head; | |
115 | unsigned short peer_backlog_tail; | |
116 | unsigned short conn_backlog_head; | |
117 | unsigned short conn_backlog_tail; | |
118 | unsigned short call_backlog_head; | |
119 | unsigned short call_backlog_tail; | |
120 | #define RXRPC_BACKLOG_MAX 32 | |
121 | struct rxrpc_peer *peer_backlog[RXRPC_BACKLOG_MAX]; | |
122 | struct rxrpc_connection *conn_backlog[RXRPC_BACKLOG_MAX]; | |
123 | struct rxrpc_call *call_backlog[RXRPC_BACKLOG_MAX]; | |
124 | }; | |
125 | ||
17926a79 DH |
126 | /* |
127 | * RxRPC socket definition | |
128 | */ | |
129 | struct rxrpc_sock { | |
130 | /* WARNING: sk has to be the first member */ | |
131 | struct sock sk; | |
d001648e | 132 | rxrpc_notify_new_call_t notify_new_call; /* Func to notify of new call */ |
00e90712 | 133 | rxrpc_discard_new_call_t discard_new_call; /* Func to discard a new call */ |
17926a79 | 134 | struct rxrpc_local *local; /* local endpoint */ |
00e90712 | 135 | struct rxrpc_backlog *backlog; /* Preallocation for services */ |
248f219c DH |
136 | spinlock_t incoming_lock; /* Incoming call vs service shutdown lock */ |
137 | struct list_head sock_calls; /* List of calls owned by this socket */ | |
138 | struct list_head to_be_accepted; /* calls awaiting acceptance */ | |
139 | struct list_head recvmsg_q; /* Calls awaiting recvmsg's attention */ | |
140 | rwlock_t recvmsg_lock; /* Lock for recvmsg_q */ | |
17926a79 DH |
141 | struct key *key; /* security for this socket */ |
142 | struct key *securities; /* list of server security descriptors */ | |
00e90712 | 143 | struct rb_root calls; /* User ID -> call mapping */ |
17926a79 | 144 | unsigned long flags; |
2341e077 | 145 | #define RXRPC_SOCK_CONNECTED 0 /* connect_srx is set */ |
17926a79 DH |
146 | rwlock_t call_lock; /* lock for calls */ |
147 | u32 min_sec_level; /* minimum security level */ | |
148 | #define RXRPC_SECURITY_MAX RXRPC_SECURITY_ENCRYPT | |
cc8feb8e | 149 | bool exclusive; /* Exclusive connection for a client socket */ |
28036f44 | 150 | u16 second_service; /* Additional service bound to the endpoint */ |
4722974d DH |
151 | struct { |
152 | /* Service upgrade information */ | |
153 | u16 from; /* Service ID to upgrade (if not 0) */ | |
154 | u16 to; /* service ID to upgrade to */ | |
155 | } service_upgrade; | |
cc8feb8e | 156 | sa_family_t family; /* Protocol family created with */ |
4722974d | 157 | struct sockaddr_rxrpc srx; /* Primary Service/local addresses */ |
2341e077 | 158 | struct sockaddr_rxrpc connect_srx; /* Default client address from connect() */ |
17926a79 DH |
159 | }; |
160 | ||
161 | #define rxrpc_sk(__sk) container_of((__sk), struct rxrpc_sock, sk) | |
162 | ||
0d12f8a4 DH |
163 | /* |
164 | * CPU-byteorder normalised Rx packet header. | |
165 | */ | |
166 | struct rxrpc_host_header { | |
167 | u32 epoch; /* client boot timestamp */ | |
168 | u32 cid; /* connection and channel ID */ | |
169 | u32 callNumber; /* call ID (0 for connection-level packets) */ | |
170 | u32 seq; /* sequence number of pkt in call stream */ | |
171 | u32 serial; /* serial number of pkt sent to network */ | |
172 | u8 type; /* packet type */ | |
173 | u8 flags; /* packet flags */ | |
174 | u8 userStatus; /* app-layer defined status */ | |
175 | u8 securityIndex; /* security protocol ID */ | |
176 | union { | |
177 | u16 _rsvd; /* reserved */ | |
178 | u16 cksum; /* kerberos security checksum */ | |
179 | }; | |
180 | u16 serviceId; /* service ID */ | |
181 | } __packed; | |
182 | ||
17926a79 DH |
183 | /* |
184 | * RxRPC socket buffer private variables | |
185 | * - max 48 bytes (struct sk_buff::cb) | |
186 | */ | |
187 | struct rxrpc_skb_priv { | |
248f219c | 188 | union { |
50235c4b | 189 | u8 nr_jumbo; /* Number of jumbo subpackets */ |
248f219c | 190 | }; |
17926a79 | 191 | union { |
17926a79 | 192 | int remain; /* amount of space remaining for next write */ |
17926a79 DH |
193 | }; |
194 | ||
0d12f8a4 | 195 | struct rxrpc_host_header hdr; /* RxRPC packet header from this packet */ |
17926a79 DH |
196 | }; |
197 | ||
198 | #define rxrpc_skb(__skb) ((struct rxrpc_skb_priv *) &(__skb)->cb) | |
199 | ||
17926a79 DH |
200 | /* |
201 | * RxRPC security module interface | |
202 | */ | |
203 | struct rxrpc_security { | |
17926a79 DH |
204 | const char *name; /* name of this service */ |
205 | u8 security_index; /* security type provided */ | |
206 | ||
648af7fc DH |
207 | /* Initialise a security service */ |
208 | int (*init)(void); | |
209 | ||
210 | /* Clean up a security service */ | |
211 | void (*exit)(void); | |
212 | ||
17926a79 DH |
213 | /* initialise a connection's security */ |
214 | int (*init_connection_security)(struct rxrpc_connection *); | |
215 | ||
216 | /* prime a connection's packet security */ | |
a263629d | 217 | int (*prime_packet_security)(struct rxrpc_connection *); |
17926a79 DH |
218 | |
219 | /* impose security on a packet */ | |
a263629d | 220 | int (*secure_packet)(struct rxrpc_call *, |
17926a79 DH |
221 | struct sk_buff *, |
222 | size_t, | |
223 | void *); | |
224 | ||
225 | /* verify the security on a received packet */ | |
5a42976d | 226 | int (*verify_packet)(struct rxrpc_call *, struct sk_buff *, |
248f219c DH |
227 | unsigned int, unsigned int, rxrpc_seq_t, u16); |
228 | ||
229 | /* Locate the data in a received packet that has been verified. */ | |
230 | void (*locate_data)(struct rxrpc_call *, struct sk_buff *, | |
231 | unsigned int *, unsigned int *); | |
17926a79 DH |
232 | |
233 | /* issue a challenge */ | |
234 | int (*issue_challenge)(struct rxrpc_connection *); | |
235 | ||
236 | /* respond to a challenge */ | |
237 | int (*respond_to_challenge)(struct rxrpc_connection *, | |
238 | struct sk_buff *, | |
239 | u32 *); | |
240 | ||
241 | /* verify a response */ | |
242 | int (*verify_response)(struct rxrpc_connection *, | |
243 | struct sk_buff *, | |
244 | u32 *); | |
245 | ||
246 | /* clear connection security */ | |
247 | void (*clear)(struct rxrpc_connection *); | |
248 | }; | |
249 | ||
250 | /* | |
4f95dd78 DH |
251 | * RxRPC local transport endpoint description |
252 | * - owned by a single AF_RXRPC socket | |
253 | * - pointed to by transport socket struct sk_user_data | |
17926a79 DH |
254 | */ |
255 | struct rxrpc_local { | |
4f95dd78 | 256 | struct rcu_head rcu; |
730c5fd4 DH |
257 | atomic_t active_users; /* Number of users of the local endpoint */ |
258 | atomic_t usage; /* Number of references to the structure */ | |
2baec2c3 | 259 | struct rxrpc_net *rxnet; /* The network ns in which this resides */ |
4f95dd78 | 260 | struct list_head link; |
17926a79 | 261 | struct socket *socket; /* my UDP socket */ |
4f95dd78 | 262 | struct work_struct processor; |
1e9e5c95 | 263 | struct rxrpc_sock __rcu *service; /* Service(s) listening on this endpoint */ |
17926a79 | 264 | struct rw_semaphore defrag_sem; /* control re-enablement of IP DF bit */ |
17926a79 | 265 | struct sk_buff_head reject_queue; /* packets awaiting rejection */ |
44ba0698 | 266 | struct sk_buff_head event_queue; /* endpoint event packets awaiting processing */ |
999b69f8 DH |
267 | struct rb_root client_conns; /* Client connections by socket params */ |
268 | spinlock_t client_conns_lock; /* Lock for client_conns */ | |
17926a79 DH |
269 | spinlock_t lock; /* access lock */ |
270 | rwlock_t services_lock; /* lock for services list */ | |
17926a79 | 271 | int debug_id; /* debug ID for printks */ |
4f95dd78 | 272 | bool dead; |
f859ab61 | 273 | bool service_closed; /* Service socket closed */ |
17926a79 DH |
274 | struct sockaddr_rxrpc srx; /* local address */ |
275 | }; | |
276 | ||
277 | /* | |
278 | * RxRPC remote transport endpoint definition | |
be6e6707 | 279 | * - matched by local endpoint, remote port, address and protocol type |
17926a79 DH |
280 | */ |
281 | struct rxrpc_peer { | |
be6e6707 DH |
282 | struct rcu_head rcu; /* This must be first */ |
283 | atomic_t usage; | |
284 | unsigned long hash_key; | |
285 | struct hlist_node hash_link; | |
286 | struct rxrpc_local *local; | |
f66d7490 | 287 | struct hlist_head error_targets; /* targets for net error distribution */ |
aa390bbe | 288 | struct rb_root service_conns; /* Service connections */ |
330bdcfa | 289 | struct list_head keepalive_link; /* Link in net->peer_keepalive[] */ |
ace45bec | 290 | time64_t last_tx_at; /* Last time packet sent here */ |
8496af50 | 291 | seqlock_t service_conn_lock; |
17926a79 | 292 | spinlock_t lock; /* access lock */ |
95c96174 ED |
293 | unsigned int if_mtu; /* interface MTU for this peer */ |
294 | unsigned int mtu; /* network MTU for this peer */ | |
295 | unsigned int maxdata; /* data size (MTU - hdrsize) */ | |
17926a79 DH |
296 | unsigned short hdrsize; /* header size (IP + UDP + RxRPC) */ |
297 | int debug_id; /* debug ID for printks */ | |
17926a79 DH |
298 | struct sockaddr_rxrpc srx; /* remote address */ |
299 | ||
300 | /* calculated RTT cache */ | |
301 | #define RXRPC_RTT_CACHE_SIZE 32 | |
c1e15b49 | 302 | spinlock_t rtt_input_lock; /* RTT lock for input routine */ |
0d4b103c | 303 | ktime_t rtt_last_req; /* Time of last RTT request */ |
cf1a6474 DH |
304 | u64 rtt; /* Current RTT estimate (in nS) */ |
305 | u64 rtt_sum; /* Sum of cache contents */ | |
306 | u64 rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* Determined RTT cache */ | |
307 | u8 rtt_cursor; /* next entry at which to insert */ | |
308 | u8 rtt_usage; /* amount of cache actually used */ | |
f7aec129 DH |
309 | |
310 | u8 cong_cwnd; /* Congestion window size */ | |
17926a79 DH |
311 | }; |
312 | ||
19ffa01c DH |
313 | /* |
314 | * Keys for matching a connection. | |
315 | */ | |
316 | struct rxrpc_conn_proto { | |
e8d70ce1 DH |
317 | union { |
318 | struct { | |
319 | u32 epoch; /* epoch of this connection */ | |
320 | u32 cid; /* connection ID */ | |
321 | }; | |
322 | u64 index_key; | |
19ffa01c DH |
323 | }; |
324 | }; | |
325 | ||
326 | struct rxrpc_conn_parameters { | |
327 | struct rxrpc_local *local; /* Representation of local endpoint */ | |
328 | struct rxrpc_peer *peer; /* Remote endpoint */ | |
329 | struct key *key; /* Security details */ | |
330 | bool exclusive; /* T if conn is exclusive */ | |
4e255721 | 331 | bool upgrade; /* T if service ID can be upgraded */ |
19ffa01c DH |
332 | u16 service_id; /* Service ID for this connection */ |
333 | u32 security_level; /* Security level selected */ | |
334 | }; | |
335 | ||
bba304db DH |
336 | /* |
337 | * Bits in the connection flags. | |
338 | */ | |
339 | enum rxrpc_conn_flag { | |
340 | RXRPC_CONN_HAS_IDR, /* Has a client conn ID assigned */ | |
001c1122 DH |
341 | RXRPC_CONN_IN_SERVICE_CONNS, /* Conn is in peer->service_conns */ |
342 | RXRPC_CONN_IN_CLIENT_CONNS, /* Conn is in local->client_conns */ | |
45025bce DH |
343 | RXRPC_CONN_EXPOSED, /* Conn has extra ref for exposure */ |
344 | RXRPC_CONN_DONT_REUSE, /* Don't reuse this connection */ | |
345 | RXRPC_CONN_COUNTED, /* Counted by rxrpc_nr_client_conns */ | |
4e255721 | 346 | RXRPC_CONN_PROBING_FOR_UPGRADE, /* Probing for service upgrade */ |
3136ef49 DH |
347 | RXRPC_CONN_FINAL_ACK_0, /* Need final ACK for channel 0 */ |
348 | RXRPC_CONN_FINAL_ACK_1, /* Need final ACK for channel 1 */ | |
349 | RXRPC_CONN_FINAL_ACK_2, /* Need final ACK for channel 2 */ | |
350 | RXRPC_CONN_FINAL_ACK_3, /* Need final ACK for channel 3 */ | |
bba304db DH |
351 | }; |
352 | ||
3136ef49 DH |
353 | #define RXRPC_CONN_FINAL_ACK_MASK ((1UL << RXRPC_CONN_FINAL_ACK_0) | \ |
354 | (1UL << RXRPC_CONN_FINAL_ACK_1) | \ | |
355 | (1UL << RXRPC_CONN_FINAL_ACK_2) | \ | |
356 | (1UL << RXRPC_CONN_FINAL_ACK_3)) | |
357 | ||
bba304db DH |
358 | /* |
359 | * Events that can be raised upon a connection. | |
360 | */ | |
361 | enum rxrpc_conn_event { | |
362 | RXRPC_CONN_EV_CHALLENGE, /* Send challenge packet */ | |
363 | }; | |
364 | ||
45025bce DH |
365 | /* |
366 | * The connection cache state. | |
367 | */ | |
368 | enum rxrpc_conn_cache_state { | |
369 | RXRPC_CONN_CLIENT_INACTIVE, /* Conn is not yet listed */ | |
370 | RXRPC_CONN_CLIENT_WAITING, /* Conn is on wait list, waiting for capacity */ | |
371 | RXRPC_CONN_CLIENT_ACTIVE, /* Conn is on active list, doing calls */ | |
4e255721 | 372 | RXRPC_CONN_CLIENT_UPGRADE, /* Conn is on active list, probing for upgrade */ |
45025bce DH |
373 | RXRPC_CONN_CLIENT_CULLED, /* Conn is culled and delisted, doing calls */ |
374 | RXRPC_CONN_CLIENT_IDLE, /* Conn is on idle list, doing mostly nothing */ | |
363deeab | 375 | RXRPC_CONN__NR_CACHE_STATES |
45025bce DH |
376 | }; |
377 | ||
bba304db DH |
378 | /* |
379 | * The connection protocol state. | |
380 | */ | |
381 | enum rxrpc_conn_proto_state { | |
382 | RXRPC_CONN_UNUSED, /* Connection not yet attempted */ | |
383 | RXRPC_CONN_CLIENT, /* Client connection */ | |
00e90712 | 384 | RXRPC_CONN_SERVICE_PREALLOC, /* Service connection preallocation */ |
bba304db DH |
385 | RXRPC_CONN_SERVICE_UNSECURED, /* Service unsecured connection */ |
386 | RXRPC_CONN_SERVICE_CHALLENGING, /* Service challenging for security */ | |
387 | RXRPC_CONN_SERVICE, /* Service secured connection */ | |
388 | RXRPC_CONN_REMOTELY_ABORTED, /* Conn aborted by peer */ | |
389 | RXRPC_CONN_LOCALLY_ABORTED, /* Conn aborted locally */ | |
bba304db DH |
390 | RXRPC_CONN__NR_STATES |
391 | }; | |
392 | ||
17926a79 DH |
393 | /* |
394 | * RxRPC connection definition | |
aa390bbe | 395 | * - matched by { local, peer, epoch, conn_id, direction } |
17926a79 DH |
396 | * - each connection can only handle four simultaneous calls |
397 | */ | |
398 | struct rxrpc_connection { | |
19ffa01c DH |
399 | struct rxrpc_conn_proto proto; |
400 | struct rxrpc_conn_parameters params; | |
401 | ||
45025bce DH |
402 | atomic_t usage; |
403 | struct rcu_head rcu; | |
404 | struct list_head cache_link; | |
a1399f8b | 405 | |
45025bce DH |
406 | spinlock_t channel_lock; |
407 | unsigned char active_chans; /* Mask of active channels */ | |
408 | #define RXRPC_ACTIVE_CHANS_MASK ((1 << RXRPC_MAXCALLS) - 1) | |
409 | struct list_head waiting_calls; /* Calls waiting for channels */ | |
a1399f8b | 410 | struct rxrpc_channel { |
3136ef49 | 411 | unsigned long final_ack_at; /* Time at which to issue final ACK */ |
a1399f8b | 412 | struct rxrpc_call __rcu *call; /* Active call */ |
4764c0da | 413 | unsigned int call_debug_id; /* call->debug_id */ |
a1399f8b DH |
414 | u32 call_id; /* ID of current call */ |
415 | u32 call_counter; /* Call ID counter */ | |
416 | u32 last_call; /* ID of last call */ | |
18bfeba5 | 417 | u8 last_type; /* Type of last packet */ |
18bfeba5 DH |
418 | union { |
419 | u32 last_seq; | |
420 | u32 last_abort; | |
421 | }; | |
a1399f8b | 422 | } channels[RXRPC_MAXCALLS]; |
999b69f8 | 423 | |
3136ef49 | 424 | struct timer_list timer; /* Conn event timer */ |
17926a79 | 425 | struct work_struct processor; /* connection event processor */ |
999b69f8 DH |
426 | union { |
427 | struct rb_node client_node; /* Node in local->client_conns */ | |
aa390bbe | 428 | struct rb_node service_node; /* Node in peer->service_conns */ |
999b69f8 | 429 | }; |
4d028b2c | 430 | struct list_head proc_link; /* link in procfs list */ |
17926a79 | 431 | struct list_head link; /* link in master connection list */ |
17926a79 | 432 | struct sk_buff_head rx_queue; /* received conn-level packets */ |
648af7fc | 433 | const struct rxrpc_security *security; /* applied security module */ |
17926a79 | 434 | struct key *server_key; /* security for this service */ |
69d826fa | 435 | struct crypto_sync_skcipher *cipher; /* encryption handle */ |
17926a79 | 436 | struct rxrpc_crypt csum_iv; /* packet checksum base */ |
4a3388c8 | 437 | unsigned long flags; |
17926a79 | 438 | unsigned long events; |
f51b4480 | 439 | unsigned long idle_timestamp; /* Time at which last became idle */ |
17926a79 | 440 | spinlock_t state_lock; /* state-change lock */ |
cf13258f DH |
441 | enum rxrpc_conn_cache_state cache_state; |
442 | enum rxrpc_conn_proto_state state; /* current state of connection */ | |
64753092 | 443 | u32 abort_code; /* Abort code of connection abort */ |
17926a79 | 444 | int debug_id; /* debug ID for printks */ |
17926a79 | 445 | atomic_t serial; /* packet serial number counter */ |
563ea7d5 | 446 | unsigned int hi_serial; /* highest serial number received */ |
5a924b89 | 447 | u32 security_nonce; /* response re-use preventer */ |
c1e15b49 | 448 | u32 service_id; /* Service ID, possibly upgraded */ |
17926a79 | 449 | u8 size_align; /* data size alignment (for security) */ |
17926a79 | 450 | u8 security_size; /* security header size */ |
17926a79 | 451 | u8 security_ix; /* security type */ |
17926a79 | 452 | u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */ |
64753092 | 453 | short error; /* Local error code */ |
17926a79 DH |
454 | }; |
455 | ||
dc71db34 DH |
456 | static inline bool rxrpc_to_server(const struct rxrpc_skb_priv *sp) |
457 | { | |
458 | return sp->hdr.flags & RXRPC_CLIENT_INITIATED; | |
459 | } | |
460 | ||
461 | static inline bool rxrpc_to_client(const struct rxrpc_skb_priv *sp) | |
462 | { | |
463 | return !rxrpc_to_server(sp); | |
464 | } | |
465 | ||
5b8848d1 DH |
466 | /* |
467 | * Flags in call->flags. | |
468 | */ | |
469 | enum rxrpc_call_flag { | |
470 | RXRPC_CALL_RELEASED, /* call has been released - no more message to userspace */ | |
5b8848d1 | 471 | RXRPC_CALL_HAS_USERID, /* has a user ID attached */ |
dabe5a79 | 472 | RXRPC_CALL_IS_SERVICE, /* Call is service call */ |
45025bce | 473 | RXRPC_CALL_EXPOSED, /* The call was exposed to the world */ |
248f219c DH |
474 | RXRPC_CALL_RX_LAST, /* Received the last packet (at rxtx_top) */ |
475 | RXRPC_CALL_TX_LAST, /* Last packet in Tx buffer (at rxtx_top) */ | |
a5af7e1f | 476 | RXRPC_CALL_SEND_PING, /* A ping will need to be sent */ |
8e83134d | 477 | RXRPC_CALL_PINGING, /* Ping in process */ |
57494343 | 478 | RXRPC_CALL_RETRANS_TIMEOUT, /* Retransmission due to timeout occurred */ |
c54e43d7 | 479 | RXRPC_CALL_BEGAN_RX_TIMER, /* We began the expect_rx_by timer */ |
1a025028 | 480 | RXRPC_CALL_RX_HEARD, /* The peer responded at least once to this call */ |
d0b35a42 | 481 | RXRPC_CALL_RX_UNDERRUN, /* Got data underrun */ |
b960a34b | 482 | RXRPC_CALL_IS_INTR, /* The call is interruptible */ |
5b8848d1 DH |
483 | }; |
484 | ||
485 | /* | |
486 | * Events that can be raised on a call. | |
487 | */ | |
488 | enum rxrpc_call_event { | |
4c198ad1 | 489 | RXRPC_CALL_EV_ACK, /* need to generate ACK */ |
4c198ad1 | 490 | RXRPC_CALL_EV_ABORT, /* need to generate abort */ |
4c198ad1 | 491 | RXRPC_CALL_EV_RESEND, /* Tx resend required */ |
a5af7e1f | 492 | RXRPC_CALL_EV_PING, /* Ping send required */ |
a158bdd3 | 493 | RXRPC_CALL_EV_EXPIRED, /* Expiry occurred */ |
bd1fdf8c | 494 | RXRPC_CALL_EV_ACK_LOST, /* ACK may be lost, send ping */ |
5b8848d1 DH |
495 | }; |
496 | ||
497 | /* | |
498 | * The states that a call can be in. | |
499 | */ | |
500 | enum rxrpc_call_state { | |
999b69f8 DH |
501 | RXRPC_CALL_UNINITIALISED, |
502 | RXRPC_CALL_CLIENT_AWAIT_CONN, /* - client waiting for connection to become available */ | |
5b8848d1 DH |
503 | RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */ |
504 | RXRPC_CALL_CLIENT_AWAIT_REPLY, /* - client awaiting reply */ | |
505 | RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */ | |
00e90712 | 506 | RXRPC_CALL_SERVER_PREALLOC, /* - service preallocation */ |
5b8848d1 DH |
507 | RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */ |
508 | RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */ | |
509 | RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */ | |
510 | RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */ | |
511 | RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */ | |
512 | RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */ | |
f5c17aae | 513 | RXRPC_CALL_COMPLETE, /* - call complete */ |
f5c17aae DH |
514 | NR__RXRPC_CALL_STATES |
515 | }; | |
516 | ||
e122d845 DH |
517 | /* |
518 | * Call completion condition (state == RXRPC_CALL_COMPLETE). | |
519 | */ | |
520 | enum rxrpc_call_completion { | |
521 | RXRPC_CALL_SUCCEEDED, /* - Normal termination */ | |
522 | RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */ | |
523 | RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */ | |
524 | RXRPC_CALL_LOCAL_ERROR, /* - call failed due to local error */ | |
525 | RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */ | |
526 | NR__RXRPC_CALL_COMPLETIONS | |
527 | }; | |
528 | ||
57494343 DH |
529 | /* |
530 | * Call Tx congestion management modes. | |
531 | */ | |
532 | enum rxrpc_congest_mode { | |
533 | RXRPC_CALL_SLOW_START, | |
534 | RXRPC_CALL_CONGEST_AVOIDANCE, | |
535 | RXRPC_CALL_PACKET_LOSS, | |
536 | RXRPC_CALL_FAST_RETRANSMIT, | |
537 | NR__RXRPC_CONGEST_MODES | |
538 | }; | |
539 | ||
17926a79 DH |
540 | /* |
541 | * RxRPC call definition | |
542 | * - matched by { connection, call_id } | |
543 | */ | |
544 | struct rxrpc_call { | |
dee46364 | 545 | struct rcu_head rcu; |
17926a79 | 546 | struct rxrpc_connection *conn; /* connection carrying call */ |
df5d8bf7 | 547 | struct rxrpc_peer *peer; /* Peer record for remote address */ |
8d94aa38 | 548 | struct rxrpc_sock __rcu *socket; /* socket responsible */ |
d3be4d24 | 549 | struct rxrpc_net *rxnet; /* Network namespace to which call belongs */ |
540b1c48 | 550 | struct mutex user_mutex; /* User access mutex */ |
a158bdd3 | 551 | unsigned long ack_at; /* When deferred ACK needs to happen */ |
bd1fdf8c | 552 | unsigned long ack_lost_at; /* When ACK is figured as lost */ |
a158bdd3 DH |
553 | unsigned long resend_at; /* When next resend needs to happen */ |
554 | unsigned long ping_at; /* When next to send a ping */ | |
415f44e4 | 555 | unsigned long keepalive_at; /* When next to send a keepalive ping */ |
a158bdd3 DH |
556 | unsigned long expect_rx_by; /* When we expect to get a packet by */ |
557 | unsigned long expect_req_by; /* When we expect to get a request DATA packet by */ | |
558 | unsigned long expect_term_by; /* When we expect call termination by */ | |
559 | u32 next_rx_timo; /* Timeout for next Rx packet (jif) */ | |
560 | u32 next_req_timo; /* Timeout for next Rx request packet (jif) */ | |
248f219c DH |
561 | struct timer_list timer; /* Combined event timer */ |
562 | struct work_struct processor; /* Event processor */ | |
d001648e | 563 | rxrpc_notify_rx_t notify_rx; /* kernel service Rx notification function */ |
17926a79 | 564 | struct list_head link; /* link in master call list */ |
45025bce | 565 | struct list_head chan_wait_link; /* Link in conn->waiting_calls */ |
f66d7490 | 566 | struct hlist_node error_link; /* link in error distribution list */ |
248f219c DH |
567 | struct list_head accept_link; /* Link in rx->acceptq */ |
568 | struct list_head recvmsg_link; /* Link in rx->recvmsg_q */ | |
569 | struct list_head sock_link; /* Link in rx->sock_calls */ | |
570 | struct rb_node sock_node; /* Node in rx->calls */ | |
17926a79 | 571 | struct sk_buff *tx_pending; /* Tx socket buffer being filled */ |
45025bce | 572 | wait_queue_head_t waitq; /* Wait queue for channel or Tx */ |
e754eba6 | 573 | s64 tx_total_len; /* Total length left to be transmitted (or -1) */ |
a263629d | 574 | __be32 crypto_buf[2]; /* Temporary packet crypto buffer */ |
17926a79 | 575 | unsigned long user_call_ID; /* user-defined call ID */ |
17926a79 | 576 | unsigned long flags; |
17926a79 | 577 | unsigned long events; |
17926a79 | 578 | spinlock_t lock; |
20acbd9a | 579 | spinlock_t notify_lock; /* Kernel notification lock */ |
17926a79 | 580 | rwlock_t state_lock; /* lock for state transition */ |
f5c17aae DH |
581 | u32 abort_code; /* Local/remote abort code */ |
582 | int error; /* Local error incurred */ | |
cf13258f DH |
583 | enum rxrpc_call_state state; /* current state of call */ |
584 | enum rxrpc_call_completion completion; /* Call completion condition */ | |
17926a79 | 585 | atomic_t usage; |
dabe5a79 | 586 | u16 service_id; /* service ID */ |
278ac0cd | 587 | u8 security_ix; /* Security type */ |
dabe5a79 DH |
588 | u32 call_id; /* call ID on connection */ |
589 | u32 cid; /* connection ID plus channel index */ | |
590 | int debug_id; /* debug ID for printks */ | |
8e83134d DH |
591 | unsigned short rx_pkt_offset; /* Current recvmsg packet offset */ |
592 | unsigned short rx_pkt_len; /* Current recvmsg packet len */ | |
17926a79 | 593 | |
248f219c DH |
594 | /* Rx/Tx circular buffer, depending on phase. |
595 | * | |
596 | * In the Rx phase, packets are annotated with 0 or the number of the | |
597 | * segment of a jumbo packet each buffer refers to. There can be up to | |
598 | * 47 segments in a maximum-size UDP packet. | |
599 | * | |
600 | * In the Tx phase, packets are annotated with which buffers have been | |
601 | * acked. | |
602 | */ | |
603 | #define RXRPC_RXTX_BUFF_SIZE 64 | |
604 | #define RXRPC_RXTX_BUFF_MASK (RXRPC_RXTX_BUFF_SIZE - 1) | |
4075295a | 605 | #define RXRPC_INIT_RX_WINDOW_SIZE 63 |
248f219c DH |
606 | struct sk_buff **rxtx_buffer; |
607 | u8 *rxtx_annotations; | |
608 | #define RXRPC_TX_ANNO_ACK 0 | |
609 | #define RXRPC_TX_ANNO_UNACK 1 | |
610 | #define RXRPC_TX_ANNO_NAK 2 | |
611 | #define RXRPC_TX_ANNO_RETRANS 3 | |
f07373ea | 612 | #define RXRPC_TX_ANNO_MASK 0x03 |
70790dbe DH |
613 | #define RXRPC_TX_ANNO_LAST 0x04 |
614 | #define RXRPC_TX_ANNO_RESENT 0x08 | |
615 | ||
248f219c DH |
616 | #define RXRPC_RX_ANNO_JUMBO 0x3f /* Jumbo subpacket number + 1 if not zero */ |
617 | #define RXRPC_RX_ANNO_JLAST 0x40 /* Set if last element of a jumbo packet */ | |
618 | #define RXRPC_RX_ANNO_VERIFIED 0x80 /* Set if verified and decrypted */ | |
619 | rxrpc_seq_t tx_hard_ack; /* Dead slot in buffer; the first transmitted but | |
620 | * not hard-ACK'd packet follows this. | |
621 | */ | |
622 | rxrpc_seq_t tx_top; /* Highest Tx slot allocated. */ | |
c7e86acf | 623 | u16 tx_backoff; /* Delay to insert due to Tx failure */ |
57494343 DH |
624 | |
625 | /* TCP-style slow-start congestion control [RFC5681]. Since the SMSS | |
626 | * is fixed, we keep these numbers in terms of segments (ie. DATA | |
627 | * packets) rather than bytes. | |
628 | */ | |
629 | #define RXRPC_TX_SMSS RXRPC_JUMBO_DATALEN | |
630 | u8 cong_cwnd; /* Congestion window size */ | |
631 | u8 cong_extra; /* Extra to send for congestion management */ | |
632 | u8 cong_ssthresh; /* Slow-start threshold */ | |
633 | enum rxrpc_congest_mode cong_mode:8; /* Congestion management mode */ | |
634 | u8 cong_dup_acks; /* Count of ACKs showing missing packets */ | |
635 | u8 cong_cumul_acks; /* Cumulative ACK count */ | |
636 | ktime_t cong_tstamp; /* Last time cwnd was changed */ | |
637 | ||
248f219c DH |
638 | rxrpc_seq_t rx_hard_ack; /* Dead slot in buffer; the first received but not |
639 | * consumed packet follows this. | |
17926a79 | 640 | */ |
248f219c DH |
641 | rxrpc_seq_t rx_top; /* Highest Rx slot allocated. */ |
642 | rxrpc_seq_t rx_expect_next; /* Expected next packet sequence number */ | |
1a025028 | 643 | rxrpc_serial_t rx_serial; /* Highest serial received for this call */ |
248f219c DH |
644 | u8 rx_winsize; /* Size of Rx window */ |
645 | u8 tx_winsize; /* Maximum size of Tx window */ | |
71f3ca40 | 646 | bool tx_phase; /* T if transmission phase, F if receive phase */ |
75e42126 | 647 | u8 nr_jumbo_bad; /* Number of jumbo dups/exceeds-windows */ |
17926a79 | 648 | |
c1e15b49 DH |
649 | spinlock_t input_lock; /* Lock for packet input to this call */ |
650 | ||
17926a79 | 651 | /* receive-phase ACK management */ |
4e36a95e | 652 | u8 ackr_reason; /* reason to ACK */ |
563ea7d5 | 653 | u16 ackr_skew; /* skew on packet being ACK'd */ |
0d12f8a4 | 654 | rxrpc_serial_t ackr_serial; /* serial of packet being ACK'd */ |
1a2391c3 | 655 | rxrpc_serial_t ackr_first_seq; /* first sequence number received */ |
248f219c | 656 | rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */ |
805b21b9 DH |
657 | rxrpc_seq_t ackr_consumed; /* Highest packet shown consumed */ |
658 | rxrpc_seq_t ackr_seen; /* Highest packet shown seen */ | |
a5af7e1f DH |
659 | |
660 | /* ping management */ | |
661 | rxrpc_serial_t ping_serial; /* Last ping sent */ | |
662 | ktime_t ping_time; /* Time last ping sent */ | |
17926a79 | 663 | |
248f219c | 664 | /* transmission-phase ACK management */ |
57494343 | 665 | ktime_t acks_latest_ts; /* Timestamp of latest ACK received */ |
248f219c | 666 | rxrpc_serial_t acks_latest; /* serial number of latest ACK received */ |
31a1b989 | 667 | rxrpc_seq_t acks_lowest_nak; /* Lowest NACK in the buffer (or ==tx_hard_ack) */ |
bd1fdf8c DH |
668 | rxrpc_seq_t acks_lost_top; /* tx_top at the time lost-ack ping sent */ |
669 | rxrpc_serial_t acks_lost_ping; /* Serial number of probe ACK */ | |
31a1b989 DH |
670 | }; |
671 | ||
672 | /* | |
57494343 | 673 | * Summary of a new ACK and the changes it made to the Tx buffer packet states. |
31a1b989 DH |
674 | */ |
675 | struct rxrpc_ack_summary { | |
676 | u8 ack_reason; | |
677 | u8 nr_acks; /* Number of ACKs in packet */ | |
678 | u8 nr_nacks; /* Number of NACKs in packet */ | |
679 | u8 nr_new_acks; /* Number of new ACKs in packet */ | |
680 | u8 nr_new_nacks; /* Number of new NACKs in packet */ | |
681 | u8 nr_rot_new_acks; /* Number of rotated new ACKs */ | |
682 | bool new_low_nack; /* T if new low NACK found */ | |
57494343 DH |
683 | bool retrans_timeo; /* T if reTx due to timeout happened */ |
684 | u8 flight_size; /* Number of unreceived transmissions */ | |
685 | /* Place to stash values for tracing */ | |
686 | enum rxrpc_congest_mode mode:8; | |
687 | u8 cwnd; | |
688 | u8 ssthresh; | |
689 | u8 dup_acks; | |
690 | u8 cumulative_acks; | |
17926a79 DH |
691 | }; |
692 | ||
48124178 DH |
693 | /* |
694 | * sendmsg() cmsg-specified parameters. | |
695 | */ | |
696 | enum rxrpc_command { | |
697 | RXRPC_CMD_SEND_DATA, /* send data message */ | |
698 | RXRPC_CMD_SEND_ABORT, /* request abort generation */ | |
699 | RXRPC_CMD_ACCEPT, /* [server] accept incoming call */ | |
700 | RXRPC_CMD_REJECT_BUSY, /* [server] reject a call as busy */ | |
701 | }; | |
702 | ||
703 | struct rxrpc_call_params { | |
704 | s64 tx_total_len; /* Total Tx data length (if send data) */ | |
705 | unsigned long user_call_ID; /* User's call ID */ | |
706 | struct { | |
707 | u32 hard; /* Maximum lifetime (sec) */ | |
708 | u32 idle; /* Max time since last data packet (msec) */ | |
709 | u32 normal; /* Max time since last call packet (msec) */ | |
710 | } timeouts; | |
711 | u8 nr_timeouts; /* Number of timeouts specified */ | |
b960a34b | 712 | bool intr; /* The call is interruptible */ |
48124178 DH |
713 | }; |
714 | ||
715 | struct rxrpc_send_params { | |
716 | struct rxrpc_call_params call; | |
717 | u32 abort_code; /* Abort code to Tx (if abort) */ | |
718 | enum rxrpc_command command : 8; /* The command to implement */ | |
719 | bool exclusive; /* Shared or exclusive call */ | |
720 | bool upgrade; /* If the connection is upgradeable */ | |
721 | }; | |
722 | ||
df844fd4 DH |
723 | #include <trace/events/rxrpc.h> |
724 | ||
17926a79 | 725 | /* |
651350d1 | 726 | * af_rxrpc.c |
17926a79 | 727 | */ |
71f3ca40 | 728 | extern atomic_t rxrpc_n_tx_skbs, rxrpc_n_rx_skbs; |
651350d1 | 729 | extern struct workqueue_struct *rxrpc_workqueue; |
17926a79 DH |
730 | |
731 | /* | |
0d81a51a | 732 | * call_accept.c |
17926a79 | 733 | */ |
00e90712 DH |
734 | int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t); |
735 | void rxrpc_discard_prealloc(struct rxrpc_sock *); | |
248f219c | 736 | struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *, |
0099dc58 | 737 | struct rxrpc_sock *, |
248f219c | 738 | struct sk_buff *); |
4f95dd78 | 739 | void rxrpc_accept_incoming_calls(struct rxrpc_local *); |
d001648e DH |
740 | struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long, |
741 | rxrpc_notify_rx_t); | |
c1b1203d | 742 | int rxrpc_reject_call(struct rxrpc_sock *); |
17926a79 DH |
743 | |
744 | /* | |
0d81a51a | 745 | * call_event.c |
17926a79 | 746 | */ |
9c7ad434 DH |
747 | void rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool, bool, |
748 | enum rxrpc_propose_ack_trace); | |
c1b1203d | 749 | void rxrpc_process_call(struct work_struct *); |
17926a79 | 750 | |
a158bdd3 DH |
751 | static inline void rxrpc_reduce_call_timer(struct rxrpc_call *call, |
752 | unsigned long expire_at, | |
753 | unsigned long now, | |
754 | enum rxrpc_timer_trace why) | |
755 | { | |
756 | trace_rxrpc_timer(call, why, now); | |
757 | timer_reduce(&call->timer, expire_at); | |
758 | } | |
759 | ||
17926a79 | 760 | /* |
0d81a51a | 761 | * call_object.c |
17926a79 | 762 | */ |
f5c17aae DH |
763 | extern const char *const rxrpc_call_states[]; |
764 | extern const char *const rxrpc_call_completions[]; | |
dad8aff7 | 765 | extern unsigned int rxrpc_max_call_lifetime; |
17926a79 | 766 | extern struct kmem_cache *rxrpc_call_jar; |
17926a79 | 767 | |
2341e077 | 768 | struct rxrpc_call *rxrpc_find_call_by_user_ID(struct rxrpc_sock *, unsigned long); |
a25e21f0 | 769 | struct rxrpc_call *rxrpc_alloc_call(struct rxrpc_sock *, gfp_t, unsigned int); |
2341e077 | 770 | struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *, |
19ffa01c | 771 | struct rxrpc_conn_parameters *, |
999b69f8 | 772 | struct sockaddr_rxrpc *, |
a25e21f0 DH |
773 | struct rxrpc_call_params *, gfp_t, |
774 | unsigned int); | |
248f219c DH |
775 | void rxrpc_incoming_call(struct rxrpc_sock *, struct rxrpc_call *, |
776 | struct sk_buff *); | |
8d94aa38 | 777 | void rxrpc_release_call(struct rxrpc_sock *, struct rxrpc_call *); |
c1b1203d | 778 | void rxrpc_release_calls_on_socket(struct rxrpc_sock *); |
8d94aa38 DH |
779 | bool __rxrpc_queue_call(struct rxrpc_call *); |
780 | bool rxrpc_queue_call(struct rxrpc_call *); | |
e34d4234 | 781 | void rxrpc_see_call(struct rxrpc_call *); |
fff72429 DH |
782 | void rxrpc_get_call(struct rxrpc_call *, enum rxrpc_call_trace); |
783 | void rxrpc_put_call(struct rxrpc_call *, enum rxrpc_call_trace); | |
00e90712 | 784 | void rxrpc_cleanup_call(struct rxrpc_call *); |
2baec2c3 | 785 | void rxrpc_destroy_all_calls(struct rxrpc_net *); |
17926a79 | 786 | |
dabe5a79 DH |
787 | static inline bool rxrpc_is_service_call(const struct rxrpc_call *call) |
788 | { | |
789 | return test_bit(RXRPC_CALL_IS_SERVICE, &call->flags); | |
790 | } | |
791 | ||
792 | static inline bool rxrpc_is_client_call(const struct rxrpc_call *call) | |
793 | { | |
794 | return !rxrpc_is_service_call(call); | |
795 | } | |
796 | ||
f5c17aae DH |
797 | /* |
798 | * Transition a call to the complete state. | |
799 | */ | |
800 | static inline bool __rxrpc_set_call_completion(struct rxrpc_call *call, | |
801 | enum rxrpc_call_completion compl, | |
802 | u32 abort_code, | |
803 | int error) | |
804 | { | |
805 | if (call->state < RXRPC_CALL_COMPLETE) { | |
806 | call->abort_code = abort_code; | |
807 | call->error = error; | |
808 | call->completion = compl, | |
809 | call->state = RXRPC_CALL_COMPLETE; | |
1bae5d22 | 810 | trace_rxrpc_call_complete(call); |
c0d058c2 | 811 | wake_up(&call->waitq); |
f5c17aae DH |
812 | return true; |
813 | } | |
814 | return false; | |
815 | } | |
816 | ||
817 | static inline bool rxrpc_set_call_completion(struct rxrpc_call *call, | |
818 | enum rxrpc_call_completion compl, | |
819 | u32 abort_code, | |
820 | int error) | |
821 | { | |
e8d6bbb0 | 822 | bool ret; |
f5c17aae DH |
823 | |
824 | write_lock_bh(&call->state_lock); | |
825 | ret = __rxrpc_set_call_completion(call, compl, abort_code, error); | |
826 | write_unlock_bh(&call->state_lock); | |
827 | return ret; | |
828 | } | |
829 | ||
830 | /* | |
831 | * Record that a call successfully completed. | |
832 | */ | |
e8d6bbb0 | 833 | static inline bool __rxrpc_call_completed(struct rxrpc_call *call) |
f5c17aae | 834 | { |
e8d6bbb0 | 835 | return __rxrpc_set_call_completion(call, RXRPC_CALL_SUCCEEDED, 0, 0); |
f5c17aae DH |
836 | } |
837 | ||
e8d6bbb0 | 838 | static inline bool rxrpc_call_completed(struct rxrpc_call *call) |
f5c17aae | 839 | { |
e8d6bbb0 DH |
840 | bool ret; |
841 | ||
f5c17aae | 842 | write_lock_bh(&call->state_lock); |
e8d6bbb0 | 843 | ret = __rxrpc_call_completed(call); |
f5c17aae | 844 | write_unlock_bh(&call->state_lock); |
e8d6bbb0 | 845 | return ret; |
f5c17aae DH |
846 | } |
847 | ||
848 | /* | |
849 | * Record that a call is locally aborted. | |
850 | */ | |
5a42976d DH |
851 | static inline bool __rxrpc_abort_call(const char *why, struct rxrpc_call *call, |
852 | rxrpc_seq_t seq, | |
f5c17aae DH |
853 | u32 abort_code, int error) |
854 | { | |
a25e21f0 | 855 | trace_rxrpc_abort(call->debug_id, why, call->cid, call->call_id, seq, |
5a42976d | 856 | abort_code, error); |
248f219c DH |
857 | return __rxrpc_set_call_completion(call, RXRPC_CALL_LOCALLY_ABORTED, |
858 | abort_code, error); | |
f5c17aae DH |
859 | } |
860 | ||
5a42976d DH |
861 | static inline bool rxrpc_abort_call(const char *why, struct rxrpc_call *call, |
862 | rxrpc_seq_t seq, u32 abort_code, int error) | |
f5c17aae DH |
863 | { |
864 | bool ret; | |
865 | ||
866 | write_lock_bh(&call->state_lock); | |
5a42976d | 867 | ret = __rxrpc_abort_call(why, call, seq, abort_code, error); |
f5c17aae DH |
868 | write_unlock_bh(&call->state_lock); |
869 | return ret; | |
870 | } | |
871 | ||
fb46f6ee DH |
872 | /* |
873 | * Abort a call due to a protocol error. | |
874 | */ | |
875 | static inline bool __rxrpc_abort_eproto(struct rxrpc_call *call, | |
876 | struct sk_buff *skb, | |
877 | const char *eproto_why, | |
878 | const char *why, | |
879 | u32 abort_code) | |
880 | { | |
881 | struct rxrpc_skb_priv *sp = rxrpc_skb(skb); | |
882 | ||
883 | trace_rxrpc_rx_eproto(call, sp->hdr.serial, eproto_why); | |
884 | return rxrpc_abort_call(why, call, sp->hdr.seq, abort_code, -EPROTO); | |
885 | } | |
886 | ||
887 | #define rxrpc_abort_eproto(call, skb, eproto_why, abort_why, abort_code) \ | |
888 | __rxrpc_abort_eproto((call), (skb), tracepoint_string(eproto_why), \ | |
889 | (abort_why), (abort_code)) | |
890 | ||
4a3388c8 DH |
891 | /* |
892 | * conn_client.c | |
893 | */ | |
45025bce DH |
894 | extern unsigned int rxrpc_max_client_connections; |
895 | extern unsigned int rxrpc_reap_client_connections; | |
a158bdd3 DH |
896 | extern unsigned long rxrpc_conn_idle_client_expiry; |
897 | extern unsigned long rxrpc_conn_idle_client_fast_expiry; | |
4a3388c8 DH |
898 | extern struct idr rxrpc_client_conn_ids; |
899 | ||
eb9b9d22 | 900 | void rxrpc_destroy_client_conn_ids(void); |
5e33a23b DH |
901 | int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_call *, |
902 | struct rxrpc_conn_parameters *, struct sockaddr_rxrpc *, | |
903 | gfp_t); | |
45025bce DH |
904 | void rxrpc_expose_client_call(struct rxrpc_call *); |
905 | void rxrpc_disconnect_client_call(struct rxrpc_call *); | |
906 | void rxrpc_put_client_conn(struct rxrpc_connection *); | |
2baec2c3 DH |
907 | void rxrpc_discard_expired_client_conns(struct work_struct *); |
908 | void rxrpc_destroy_all_client_connections(struct rxrpc_net *); | |
4a3388c8 | 909 | |
17926a79 | 910 | /* |
0d81a51a DH |
911 | * conn_event.c |
912 | */ | |
913 | void rxrpc_process_connection(struct work_struct *); | |
0d81a51a DH |
914 | |
915 | /* | |
916 | * conn_object.c | |
17926a79 | 917 | */ |
dad8aff7 | 918 | extern unsigned int rxrpc_connection_expiry; |
f859ab61 | 919 | extern unsigned int rxrpc_closed_conn_expiry; |
17926a79 | 920 | |
c6d2b8d7 | 921 | struct rxrpc_connection *rxrpc_alloc_connection(gfp_t); |
8496af50 | 922 | struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *, |
0099dc58 DH |
923 | struct sk_buff *, |
924 | struct rxrpc_peer **); | |
45025bce | 925 | void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *); |
999b69f8 | 926 | void rxrpc_disconnect_call(struct rxrpc_call *); |
45025bce | 927 | void rxrpc_kill_connection(struct rxrpc_connection *); |
363deeab DH |
928 | bool rxrpc_queue_conn(struct rxrpc_connection *); |
929 | void rxrpc_see_connection(struct rxrpc_connection *); | |
930 | void rxrpc_get_connection(struct rxrpc_connection *); | |
931 | struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *); | |
932 | void rxrpc_put_service_conn(struct rxrpc_connection *); | |
2baec2c3 DH |
933 | void rxrpc_service_connection_reaper(struct work_struct *); |
934 | void rxrpc_destroy_all_connections(struct rxrpc_net *); | |
17926a79 | 935 | |
19ffa01c DH |
936 | static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn) |
937 | { | |
938 | return conn->out_clientflag; | |
939 | } | |
940 | ||
941 | static inline bool rxrpc_conn_is_service(const struct rxrpc_connection *conn) | |
942 | { | |
e8d70ce1 | 943 | return !rxrpc_conn_is_client(conn); |
19ffa01c DH |
944 | } |
945 | ||
f51b4480 DH |
946 | static inline void rxrpc_put_connection(struct rxrpc_connection *conn) |
947 | { | |
45025bce DH |
948 | if (!conn) |
949 | return; | |
950 | ||
363deeab DH |
951 | if (rxrpc_conn_is_client(conn)) |
952 | rxrpc_put_client_conn(conn); | |
953 | else | |
954 | rxrpc_put_service_conn(conn); | |
5acbee46 DH |
955 | } |
956 | ||
3136ef49 DH |
957 | static inline void rxrpc_reduce_conn_timer(struct rxrpc_connection *conn, |
958 | unsigned long expire_at) | |
959 | { | |
960 | timer_reduce(&conn->timer, expire_at); | |
961 | } | |
962 | ||
7877a4a4 DH |
963 | /* |
964 | * conn_service.c | |
965 | */ | |
8496af50 DH |
966 | struct rxrpc_connection *rxrpc_find_service_conn_rcu(struct rxrpc_peer *, |
967 | struct sk_buff *); | |
2baec2c3 | 968 | struct rxrpc_connection *rxrpc_prealloc_service_connection(struct rxrpc_net *, gfp_t); |
4722974d DH |
969 | void rxrpc_new_incoming_connection(struct rxrpc_sock *, |
970 | struct rxrpc_connection *, struct sk_buff *); | |
001c1122 | 971 | void rxrpc_unpublish_service_conn(struct rxrpc_connection *); |
7877a4a4 | 972 | |
17926a79 | 973 | /* |
0d81a51a | 974 | * input.c |
17926a79 | 975 | */ |
5271953c | 976 | int rxrpc_input_packet(struct sock *, struct sk_buff *); |
17926a79 DH |
977 | |
978 | /* | |
0d81a51a | 979 | * insecure.c |
17926a79 | 980 | */ |
0d81a51a | 981 | extern const struct rxrpc_security rxrpc_no_security; |
17926a79 DH |
982 | |
983 | /* | |
0d81a51a | 984 | * key.c |
17926a79 | 985 | */ |
0d81a51a DH |
986 | extern struct key_type key_type_rxrpc; |
987 | extern struct key_type key_type_rxrpc_s; | |
988 | ||
989 | int rxrpc_request_key(struct rxrpc_sock *, char __user *, int); | |
990 | int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int); | |
10674a03 | 991 | int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time64_t, |
0d81a51a | 992 | u32); |
17926a79 | 993 | |
87563616 DH |
994 | /* |
995 | * local_event.c | |
996 | */ | |
4f95dd78 | 997 | extern void rxrpc_process_local_events(struct rxrpc_local *); |
87563616 | 998 | |
17926a79 | 999 | /* |
0d81a51a | 1000 | * local_object.c |
17926a79 | 1001 | */ |
2baec2c3 | 1002 | struct rxrpc_local *rxrpc_lookup_local(struct net *, const struct sockaddr_rxrpc *); |
09d2bf59 DH |
1003 | struct rxrpc_local *rxrpc_get_local(struct rxrpc_local *); |
1004 | struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *); | |
1005 | void rxrpc_put_local(struct rxrpc_local *); | |
730c5fd4 DH |
1006 | struct rxrpc_local *rxrpc_use_local(struct rxrpc_local *); |
1007 | void rxrpc_unuse_local(struct rxrpc_local *); | |
09d2bf59 | 1008 | void rxrpc_queue_local(struct rxrpc_local *); |
2baec2c3 | 1009 | void rxrpc_destroy_all_locals(struct rxrpc_net *); |
17926a79 DH |
1010 | |
1011 | /* | |
0d81a51a | 1012 | * misc.c |
17926a79 | 1013 | */ |
0d81a51a | 1014 | extern unsigned int rxrpc_max_backlog __read_mostly; |
a158bdd3 DH |
1015 | extern unsigned long rxrpc_requested_ack_delay; |
1016 | extern unsigned long rxrpc_soft_ack_delay; | |
1017 | extern unsigned long rxrpc_idle_ack_delay; | |
0d81a51a DH |
1018 | extern unsigned int rxrpc_rx_window_size; |
1019 | extern unsigned int rxrpc_rx_mtu; | |
1020 | extern unsigned int rxrpc_rx_jumbo_max; | |
a158bdd3 | 1021 | extern unsigned long rxrpc_resend_timeout; |
17926a79 | 1022 | |
0d81a51a DH |
1023 | extern const s8 rxrpc_ack_priority[]; |
1024 | ||
2baec2c3 DH |
1025 | /* |
1026 | * net_ns.c | |
1027 | */ | |
1028 | extern unsigned int rxrpc_net_id; | |
1029 | extern struct pernet_operations rxrpc_net_ops; | |
1030 | ||
1031 | static inline struct rxrpc_net *rxrpc_net(struct net *net) | |
1032 | { | |
1033 | return net_generic(net, rxrpc_net_id); | |
1034 | } | |
1035 | ||
17926a79 | 1036 | /* |
0d81a51a | 1037 | * output.c |
17926a79 | 1038 | */ |
bd1fdf8c | 1039 | int rxrpc_send_ack_packet(struct rxrpc_call *, bool, rxrpc_serial_t *); |
26cb02aa | 1040 | int rxrpc_send_abort_packet(struct rxrpc_call *); |
a1767077 | 1041 | int rxrpc_send_data_packet(struct rxrpc_call *, struct sk_buff *, bool); |
248f219c | 1042 | void rxrpc_reject_packets(struct rxrpc_local *); |
ace45bec | 1043 | void rxrpc_send_keepalive(struct rxrpc_peer *); |
17926a79 DH |
1044 | |
1045 | /* | |
abe89ef0 | 1046 | * peer_event.c |
0d81a51a | 1047 | */ |
abe89ef0 | 1048 | void rxrpc_error_report(struct sock *); |
cf1a6474 DH |
1049 | void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace, |
1050 | rxrpc_serial_t, rxrpc_serial_t, ktime_t, ktime_t); | |
ace45bec | 1051 | void rxrpc_peer_keepalive_worker(struct work_struct *); |
0d81a51a DH |
1052 | |
1053 | /* | |
1054 | * peer_object.c | |
17926a79 | 1055 | */ |
be6e6707 DH |
1056 | struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *, |
1057 | const struct sockaddr_rxrpc *); | |
5e33a23b | 1058 | struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *, struct rxrpc_local *, |
be6e6707 DH |
1059 | struct sockaddr_rxrpc *, gfp_t); |
1060 | struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t); | |
5e33a23b DH |
1061 | void rxrpc_new_incoming_peer(struct rxrpc_sock *, struct rxrpc_local *, |
1062 | struct rxrpc_peer *); | |
17226f12 | 1063 | void rxrpc_destroy_all_peers(struct rxrpc_net *); |
1159d4b4 DH |
1064 | struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *); |
1065 | struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *); | |
1066 | void rxrpc_put_peer(struct rxrpc_peer *); | |
60034d3d | 1067 | void rxrpc_put_peer_locked(struct rxrpc_peer *); |
17926a79 DH |
1068 | |
1069 | /* | |
0d81a51a | 1070 | * proc.c |
17926a79 | 1071 | */ |
c3506372 CH |
1072 | extern const struct seq_operations rxrpc_call_seq_ops; |
1073 | extern const struct seq_operations rxrpc_connection_seq_ops; | |
bc0e7cf4 | 1074 | extern const struct seq_operations rxrpc_peer_seq_ops; |
17926a79 DH |
1075 | |
1076 | /* | |
0d81a51a | 1077 | * recvmsg.c |
17926a79 | 1078 | */ |
248f219c | 1079 | void rxrpc_notify_socket(struct rxrpc_call *); |
1b784140 | 1080 | int rxrpc_recvmsg(struct socket *, struct msghdr *, size_t, int); |
17926a79 DH |
1081 | |
1082 | /* | |
0d81a51a DH |
1083 | * rxkad.c |
1084 | */ | |
1085 | #ifdef CONFIG_RXKAD | |
1086 | extern const struct rxrpc_security rxkad; | |
1087 | #endif | |
1088 | ||
1089 | /* | |
1090 | * security.c | |
17926a79 | 1091 | */ |
648af7fc DH |
1092 | int __init rxrpc_init_security(void); |
1093 | void rxrpc_exit_security(void); | |
c1b1203d JP |
1094 | int rxrpc_init_client_conn_security(struct rxrpc_connection *); |
1095 | int rxrpc_init_server_conn_security(struct rxrpc_connection *); | |
71a17de3 | 1096 | |
0b58b8a1 DH |
1097 | /* |
1098 | * sendmsg.c | |
1099 | */ | |
1100 | int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t); | |
17926a79 DH |
1101 | |
1102 | /* | |
0d81a51a | 1103 | * skbuff.c |
17926a79 | 1104 | */ |
d001648e | 1105 | void rxrpc_kernel_data_consumed(struct rxrpc_call *, struct sk_buff *); |
c1b1203d | 1106 | void rxrpc_packet_destructor(struct sk_buff *); |
71f3ca40 DH |
1107 | void rxrpc_new_skb(struct sk_buff *, enum rxrpc_skb_trace); |
1108 | void rxrpc_see_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
1109 | void rxrpc_get_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
1110 | void rxrpc_free_skb(struct sk_buff *, enum rxrpc_skb_trace); | |
df844fd4 | 1111 | void rxrpc_purge_queue(struct sk_buff_head *); |
17926a79 | 1112 | |
5873c083 DH |
1113 | /* |
1114 | * sysctl.c | |
1115 | */ | |
1116 | #ifdef CONFIG_SYSCTL | |
1117 | extern int __init rxrpc_sysctl_init(void); | |
1118 | extern void rxrpc_sysctl_exit(void); | |
1119 | #else | |
1120 | static inline int __init rxrpc_sysctl_init(void) { return 0; } | |
1121 | static inline void rxrpc_sysctl_exit(void) {} | |
1122 | #endif | |
1123 | ||
be6e6707 DH |
1124 | /* |
1125 | * utils.c | |
1126 | */ | |
5a790b73 | 1127 | int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *); |
be6e6707 | 1128 | |
248f219c DH |
1129 | static inline bool before(u32 seq1, u32 seq2) |
1130 | { | |
1131 | return (s32)(seq1 - seq2) < 0; | |
1132 | } | |
1133 | static inline bool before_eq(u32 seq1, u32 seq2) | |
1134 | { | |
1135 | return (s32)(seq1 - seq2) <= 0; | |
1136 | } | |
1137 | static inline bool after(u32 seq1, u32 seq2) | |
1138 | { | |
1139 | return (s32)(seq1 - seq2) > 0; | |
1140 | } | |
1141 | static inline bool after_eq(u32 seq1, u32 seq2) | |
1142 | { | |
1143 | return (s32)(seq1 - seq2) >= 0; | |
1144 | } | |
1145 | ||
17926a79 DH |
1146 | /* |
1147 | * debug tracing | |
1148 | */ | |
95c96174 | 1149 | extern unsigned int rxrpc_debug; |
17926a79 DH |
1150 | |
1151 | #define dbgprintk(FMT,...) \ | |
9f389f4b | 1152 | printk("[%-6.6s] "FMT"\n", current->comm ,##__VA_ARGS__) |
17926a79 | 1153 | |
0dc47877 HH |
1154 | #define kenter(FMT,...) dbgprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__) |
1155 | #define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) | |
17926a79 DH |
1156 | #define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__) |
1157 | #define kproto(FMT,...) dbgprintk("### "FMT ,##__VA_ARGS__) | |
1158 | #define knet(FMT,...) dbgprintk("@@@ "FMT ,##__VA_ARGS__) | |
1159 | ||
1160 | ||
1161 | #if defined(__KDEBUG) | |
1162 | #define _enter(FMT,...) kenter(FMT,##__VA_ARGS__) | |
1163 | #define _leave(FMT,...) kleave(FMT,##__VA_ARGS__) | |
1164 | #define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__) | |
1165 | #define _proto(FMT,...) kproto(FMT,##__VA_ARGS__) | |
1166 | #define _net(FMT,...) knet(FMT,##__VA_ARGS__) | |
1167 | ||
1168 | #elif defined(CONFIG_AF_RXRPC_DEBUG) | |
1169 | #define RXRPC_DEBUG_KENTER 0x01 | |
1170 | #define RXRPC_DEBUG_KLEAVE 0x02 | |
1171 | #define RXRPC_DEBUG_KDEBUG 0x04 | |
1172 | #define RXRPC_DEBUG_KPROTO 0x08 | |
1173 | #define RXRPC_DEBUG_KNET 0x10 | |
1174 | ||
1175 | #define _enter(FMT,...) \ | |
1176 | do { \ | |
1177 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KENTER)) \ | |
1178 | kenter(FMT,##__VA_ARGS__); \ | |
1179 | } while (0) | |
1180 | ||
1181 | #define _leave(FMT,...) \ | |
1182 | do { \ | |
1183 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KLEAVE)) \ | |
1184 | kleave(FMT,##__VA_ARGS__); \ | |
1185 | } while (0) | |
1186 | ||
1187 | #define _debug(FMT,...) \ | |
1188 | do { \ | |
1189 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KDEBUG)) \ | |
1190 | kdebug(FMT,##__VA_ARGS__); \ | |
1191 | } while (0) | |
1192 | ||
1193 | #define _proto(FMT,...) \ | |
1194 | do { \ | |
1195 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KPROTO)) \ | |
1196 | kproto(FMT,##__VA_ARGS__); \ | |
1197 | } while (0) | |
1198 | ||
1199 | #define _net(FMT,...) \ | |
1200 | do { \ | |
1201 | if (unlikely(rxrpc_debug & RXRPC_DEBUG_KNET)) \ | |
1202 | knet(FMT,##__VA_ARGS__); \ | |
1203 | } while (0) | |
1204 | ||
1205 | #else | |
12fdff3f DH |
1206 | #define _enter(FMT,...) no_printk("==> %s("FMT")",__func__ ,##__VA_ARGS__) |
1207 | #define _leave(FMT,...) no_printk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) | |
1208 | #define _debug(FMT,...) no_printk(" "FMT ,##__VA_ARGS__) | |
1209 | #define _proto(FMT,...) no_printk("### "FMT ,##__VA_ARGS__) | |
1210 | #define _net(FMT,...) no_printk("@@@ "FMT ,##__VA_ARGS__) | |
17926a79 DH |
1211 | #endif |
1212 | ||
1213 | /* | |
1214 | * debug assertion checking | |
1215 | */ | |
1216 | #if 1 // defined(__KDEBUGALL) | |
1217 | ||
1218 | #define ASSERT(X) \ | |
1219 | do { \ | |
1220 | if (unlikely(!(X))) { \ | |
9b6d5398 | 1221 | pr_err("Assertion failed\n"); \ |
17926a79 DH |
1222 | BUG(); \ |
1223 | } \ | |
b4f1342f | 1224 | } while (0) |
17926a79 DH |
1225 | |
1226 | #define ASSERTCMP(X, OP, Y) \ | |
1227 | do { \ | |
cf13258f DH |
1228 | __typeof__(X) _x = (X); \ |
1229 | __typeof__(Y) _y = (__typeof__(X))(Y); \ | |
9b6d5398 | 1230 | if (unlikely(!(_x OP _y))) { \ |
cf13258f DH |
1231 | pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \ |
1232 | (unsigned long)_x, (unsigned long)_x, #OP, \ | |
1233 | (unsigned long)_y, (unsigned long)_y); \ | |
17926a79 DH |
1234 | BUG(); \ |
1235 | } \ | |
b4f1342f | 1236 | } while (0) |
17926a79 DH |
1237 | |
1238 | #define ASSERTIF(C, X) \ | |
1239 | do { \ | |
1240 | if (unlikely((C) && !(X))) { \ | |
9b6d5398 | 1241 | pr_err("Assertion failed\n"); \ |
17926a79 DH |
1242 | BUG(); \ |
1243 | } \ | |
b4f1342f | 1244 | } while (0) |
17926a79 DH |
1245 | |
1246 | #define ASSERTIFCMP(C, X, OP, Y) \ | |
1247 | do { \ | |
cf13258f DH |
1248 | __typeof__(X) _x = (X); \ |
1249 | __typeof__(Y) _y = (__typeof__(X))(Y); \ | |
9b6d5398 JP |
1250 | if (unlikely((C) && !(_x OP _y))) { \ |
1251 | pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \ | |
cf13258f DH |
1252 | (unsigned long)_x, (unsigned long)_x, #OP, \ |
1253 | (unsigned long)_y, (unsigned long)_y); \ | |
17926a79 DH |
1254 | BUG(); \ |
1255 | } \ | |
b4f1342f | 1256 | } while (0) |
17926a79 DH |
1257 | |
1258 | #else | |
1259 | ||
1260 | #define ASSERT(X) \ | |
1261 | do { \ | |
b4f1342f | 1262 | } while (0) |
17926a79 DH |
1263 | |
1264 | #define ASSERTCMP(X, OP, Y) \ | |
1265 | do { \ | |
b4f1342f | 1266 | } while (0) |
17926a79 DH |
1267 | |
1268 | #define ASSERTIF(C, X) \ | |
1269 | do { \ | |
b4f1342f | 1270 | } while (0) |
17926a79 DH |
1271 | |
1272 | #define ASSERTIFCMP(C, X, OP, Y) \ | |
1273 | do { \ | |
b4f1342f | 1274 | } while (0) |
17926a79 DH |
1275 | |
1276 | #endif /* __KDEBUGALL */ |