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-rw-r--r--include/net/sctp/checksum.h2
-rw-r--r--include/net/sctp/constants.h1
-rw-r--r--include/net/sctp/structs.h20
-rw-r--r--include/net/sctp/ulpqueue.h1
-rw-r--r--include/net/sctp/user.h782
5 files changed, 4 insertions, 802 deletions
diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index befc8d2a1b9f..5a2110d3176d 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -77,7 +77,7 @@ static inline __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
77 return sctp_crc32c(crc32, buffer, length); 77 return sctp_crc32c(crc32, buffer, length);
78} 78}
79 79
80static inline __le32 sctp_end_cksum(__be32 crc32) 80static inline __le32 sctp_end_cksum(__u32 crc32)
81{ 81{
82 return cpu_to_le32(~crc32); 82 return cpu_to_le32(~crc32);
83} 83}
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index a7dd5c50df79..ca50e0751e47 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h
@@ -49,7 +49,6 @@
49 49
50#include <linux/sctp.h> 50#include <linux/sctp.h>
51#include <linux/ipv6.h> /* For ipv6hdr. */ 51#include <linux/ipv6.h> /* For ipv6hdr. */
52#include <net/sctp/user.h>
53#include <net/tcp_states.h> /* For TCP states used in sctp_sock_state_t */ 52#include <net/tcp_states.h> /* For TCP states used in sctp_sock_state_t */
54 53
55/* Value used for stream negotiation. */ 54/* Value used for stream negotiation. */
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 0e0f9d2322e3..1bd4c4144fe8 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -399,7 +399,6 @@ struct sctp_stream {
399struct sctp_ssnmap { 399struct sctp_ssnmap {
400 struct sctp_stream in; 400 struct sctp_stream in;
401 struct sctp_stream out; 401 struct sctp_stream out;
402 int malloced;
403}; 402};
404 403
405struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out, 404struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out,
@@ -715,8 +714,7 @@ struct sctp_packet {
715 has_sack:1, /* This packet contains a SACK chunk. */ 714 has_sack:1, /* This packet contains a SACK chunk. */
716 has_auth:1, /* This packet contains an AUTH chunk */ 715 has_auth:1, /* This packet contains an AUTH chunk */
717 has_data:1, /* This packet contains at least 1 DATA chunk */ 716 has_data:1, /* This packet contains at least 1 DATA chunk */
718 ipfragok:1, /* So let ip fragment this packet */ 717 ipfragok:1; /* So let ip fragment this packet */
719 malloced:1; /* Is it malloced? */
720}; 718};
721 719
722struct sctp_packet *sctp_packet_init(struct sctp_packet *, 720struct sctp_packet *sctp_packet_init(struct sctp_packet *,
@@ -780,10 +778,7 @@ struct sctp_transport {
780 hb_sent:1, 778 hb_sent:1,
781 779
782 /* Is the Path MTU update pending on this tranport */ 780 /* Is the Path MTU update pending on this tranport */
783 pmtu_pending:1, 781 pmtu_pending:1;
784
785 /* Is this structure kfree()able? */
786 malloced:1;
787 782
788 /* Has this transport moved the ctsn since we last sacked */ 783 /* Has this transport moved the ctsn since we last sacked */
789 __u32 sack_generation; 784 __u32 sack_generation;
@@ -992,8 +987,6 @@ struct sctp_inq {
992 * messages. 987 * messages.
993 */ 988 */
994 struct work_struct immediate; 989 struct work_struct immediate;
995
996 int malloced; /* Is this structure kfree()able? */
997}; 990};
998 991
999void sctp_inq_init(struct sctp_inq *); 992void sctp_inq_init(struct sctp_inq *);
@@ -1062,9 +1055,6 @@ struct sctp_outq {
1062 1055
1063 /* Is this structure empty? */ 1056 /* Is this structure empty? */
1064 char empty; 1057 char empty;
1065
1066 /* Are we kfree()able? */
1067 char malloced;
1068}; 1058};
1069 1059
1070void sctp_outq_init(struct sctp_association *, struct sctp_outq *); 1060void sctp_outq_init(struct sctp_association *, struct sctp_outq *);
@@ -1102,8 +1092,6 @@ struct sctp_bind_addr {
1102 * peer(s) in INIT and INIT ACK chunks. 1092 * peer(s) in INIT and INIT ACK chunks.
1103 */ 1093 */
1104 struct list_head address_list; 1094 struct list_head address_list;
1105
1106 int malloced; /* Are we kfree()able? */
1107}; 1095};
1108 1096
1109void sctp_bind_addr_init(struct sctp_bind_addr *, __u16 port); 1097void sctp_bind_addr_init(struct sctp_bind_addr *, __u16 port);
@@ -1174,11 +1162,9 @@ struct sctp_ep_common {
1174 /* Some fields to help us manage this object. 1162 /* Some fields to help us manage this object.
1175 * refcnt - Reference count access to this object. 1163 * refcnt - Reference count access to this object.
1176 * dead - Do not attempt to use this object. 1164 * dead - Do not attempt to use this object.
1177 * malloced - Do we need to kfree this object?
1178 */ 1165 */
1179 atomic_t refcnt; 1166 atomic_t refcnt;
1180 char dead; 1167 bool dead;
1181 char malloced;
1182 1168
1183 /* What socket does this endpoint belong to? */ 1169 /* What socket does this endpoint belong to? */
1184 struct sock *sk; 1170 struct sock *sk;
diff --git a/include/net/sctp/ulpqueue.h b/include/net/sctp/ulpqueue.h
index ff1b8ba73ab1..00e50ba3f24b 100644
--- a/include/net/sctp/ulpqueue.h
+++ b/include/net/sctp/ulpqueue.h
@@ -49,7 +49,6 @@
49 49
50/* A structure to carry information to the ULP (e.g. Sockets API) */ 50/* A structure to carry information to the ULP (e.g. Sockets API) */
51struct sctp_ulpq { 51struct sctp_ulpq {
52 char malloced;
53 char pd_mode; 52 char pd_mode;
54 struct sctp_association *asoc; 53 struct sctp_association *asoc;
55 struct sk_buff_head reasm; 54 struct sk_buff_head reasm;
diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h
deleted file mode 100644
index 9a0ae091366d..000000000000
--- a/include/net/sctp/user.h
+++ /dev/null
@@ -1,782 +0,0 @@
1/* SCTP kernel implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2002 Intel Corp.
6 *
7 * This file is part of the SCTP kernel implementation
8 *
9 * This header represents the structures and constants needed to support
10 * the SCTP Extension to the Sockets API.
11 *
12 * This SCTP implementation is free software;
13 * you can redistribute it and/or modify it under the terms of
14 * the GNU General Public License as published by
15 * the Free Software Foundation; either version 2, or (at your option)
16 * any later version.
17 *
18 * This SCTP implementation is distributed in the hope that it
19 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
20 * ************************
21 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
22 * See the GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with GNU CC; see the file COPYING. If not, write to
26 * the Free Software Foundation, 59 Temple Place - Suite 330,
27 * Boston, MA 02111-1307, USA.
28 *
29 * Please send any bug reports or fixes you make to the
30 * email address(es):
31 * lksctp developers <lksctp-developers@lists.sourceforge.net>
32 *
33 * Or submit a bug report through the following website:
34 * http://www.sf.net/projects/lksctp
35 *
36 * Written or modified by:
37 * La Monte H.P. Yarroll <piggy@acm.org>
38 * R. Stewart <randall@sctp.chicago.il.us>
39 * K. Morneau <kmorneau@cisco.com>
40 * Q. Xie <qxie1@email.mot.com>
41 * Karl Knutson <karl@athena.chicago.il.us>
42 * Jon Grimm <jgrimm@us.ibm.com>
43 * Daisy Chang <daisyc@us.ibm.com>
44 * Ryan Layer <rmlayer@us.ibm.com>
45 * Ardelle Fan <ardelle.fan@intel.com>
46 * Sridhar Samudrala <sri@us.ibm.com>
47 *
48 * Any bugs reported given to us we will try to fix... any fixes shared will
49 * be incorporated into the next SCTP release.
50 */
51
52#ifndef __net_sctp_user_h__
53#define __net_sctp_user_h__
54
55#include <linux/types.h>
56#include <linux/socket.h>
57
58typedef __s32 sctp_assoc_t;
59
60/* The following symbols come from the Sockets API Extensions for
61 * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>.
62 */
63#define SCTP_RTOINFO 0
64#define SCTP_ASSOCINFO 1
65#define SCTP_INITMSG 2
66#define SCTP_NODELAY 3 /* Get/set nodelay option. */
67#define SCTP_AUTOCLOSE 4
68#define SCTP_SET_PEER_PRIMARY_ADDR 5
69#define SCTP_PRIMARY_ADDR 6
70#define SCTP_ADAPTATION_LAYER 7
71#define SCTP_DISABLE_FRAGMENTS 8
72#define SCTP_PEER_ADDR_PARAMS 9
73#define SCTP_DEFAULT_SEND_PARAM 10
74#define SCTP_EVENTS 11
75#define SCTP_I_WANT_MAPPED_V4_ADDR 12 /* Turn on/off mapped v4 addresses */
76#define SCTP_MAXSEG 13 /* Get/set maximum fragment. */
77#define SCTP_STATUS 14
78#define SCTP_GET_PEER_ADDR_INFO 15
79#define SCTP_DELAYED_ACK_TIME 16
80#define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME
81#define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME
82#define SCTP_CONTEXT 17
83#define SCTP_FRAGMENT_INTERLEAVE 18
84#define SCTP_PARTIAL_DELIVERY_POINT 19 /* Set/Get partial delivery point */
85#define SCTP_MAX_BURST 20 /* Set/Get max burst */
86#define SCTP_AUTH_CHUNK 21 /* Set only: add a chunk type to authenticate */
87#define SCTP_HMAC_IDENT 22
88#define SCTP_AUTH_KEY 23
89#define SCTP_AUTH_ACTIVE_KEY 24
90#define SCTP_AUTH_DELETE_KEY 25
91#define SCTP_PEER_AUTH_CHUNKS 26 /* Read only */
92#define SCTP_LOCAL_AUTH_CHUNKS 27 /* Read only */
93#define SCTP_GET_ASSOC_NUMBER 28 /* Read only */
94#define SCTP_GET_ASSOC_ID_LIST 29 /* Read only */
95#define SCTP_AUTO_ASCONF 30
96#define SCTP_PEER_ADDR_THLDS 31
97
98/* Internal Socket Options. Some of the sctp library functions are
99 * implemented using these socket options.
100 */
101#define SCTP_SOCKOPT_BINDX_ADD 100 /* BINDX requests for adding addrs */
102#define SCTP_SOCKOPT_BINDX_REM 101 /* BINDX requests for removing addrs. */
103#define SCTP_SOCKOPT_PEELOFF 102 /* peel off association. */
104/* Options 104-106 are deprecated and removed. Do not use this space */
105#define SCTP_SOCKOPT_CONNECTX_OLD 107 /* CONNECTX old requests. */
106#define SCTP_GET_PEER_ADDRS 108 /* Get all peer address. */
107#define SCTP_GET_LOCAL_ADDRS 109 /* Get all local address. */
108#define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */
109#define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */
110#define SCTP_GET_ASSOC_STATS 112 /* Read only */
111
112/*
113 * 5.2.1 SCTP Initiation Structure (SCTP_INIT)
114 *
115 * This cmsghdr structure provides information for initializing new
116 * SCTP associations with sendmsg(). The SCTP_INITMSG socket option
117 * uses this same data structure. This structure is not used for
118 * recvmsg().
119 *
120 * cmsg_level cmsg_type cmsg_data[]
121 * ------------ ------------ ----------------------
122 * IPPROTO_SCTP SCTP_INIT struct sctp_initmsg
123 *
124 */
125struct sctp_initmsg {
126 __u16 sinit_num_ostreams;
127 __u16 sinit_max_instreams;
128 __u16 sinit_max_attempts;
129 __u16 sinit_max_init_timeo;
130};
131
132/*
133 * 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV)
134 *
135 * This cmsghdr structure specifies SCTP options for sendmsg() and
136 * describes SCTP header information about a received message through
137 * recvmsg().
138 *
139 * cmsg_level cmsg_type cmsg_data[]
140 * ------------ ------------ ----------------------
141 * IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo
142 *
143 */
144struct sctp_sndrcvinfo {
145 __u16 sinfo_stream;
146 __u16 sinfo_ssn;
147 __u16 sinfo_flags;
148 __u32 sinfo_ppid;
149 __u32 sinfo_context;
150 __u32 sinfo_timetolive;
151 __u32 sinfo_tsn;
152 __u32 sinfo_cumtsn;
153 sctp_assoc_t sinfo_assoc_id;
154};
155
156/*
157 * sinfo_flags: 16 bits (unsigned integer)
158 *
159 * This field may contain any of the following flags and is composed of
160 * a bitwise OR of these values.
161 */
162
163enum sctp_sinfo_flags {
164 SCTP_UNORDERED = 1, /* Send/receive message unordered. */
165 SCTP_ADDR_OVER = 2, /* Override the primary destination. */
166 SCTP_ABORT=4, /* Send an ABORT message to the peer. */
167 SCTP_SACK_IMMEDIATELY = 8, /* SACK should be sent without delay */
168 SCTP_EOF=MSG_FIN, /* Initiate graceful shutdown process. */
169};
170
171
172/* These are cmsg_types. */
173typedef enum sctp_cmsg_type {
174 SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */
175 SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */
176} sctp_cmsg_t;
177
178
179/*
180 * 5.3.1.1 SCTP_ASSOC_CHANGE
181 *
182 * Communication notifications inform the ULP that an SCTP association
183 * has either begun or ended. The identifier for a new association is
184 * provided by this notificaion. The notification information has the
185 * following format:
186 *
187 */
188struct sctp_assoc_change {
189 __u16 sac_type;
190 __u16 sac_flags;
191 __u32 sac_length;
192 __u16 sac_state;
193 __u16 sac_error;
194 __u16 sac_outbound_streams;
195 __u16 sac_inbound_streams;
196 sctp_assoc_t sac_assoc_id;
197 __u8 sac_info[0];
198};
199
200/*
201 * sac_state: 32 bits (signed integer)
202 *
203 * This field holds one of a number of values that communicate the
204 * event that happened to the association. They include:
205 *
206 * Note: The following state names deviate from the API draft as
207 * the names clash too easily with other kernel symbols.
208 */
209enum sctp_sac_state {
210 SCTP_COMM_UP,
211 SCTP_COMM_LOST,
212 SCTP_RESTART,
213 SCTP_SHUTDOWN_COMP,
214 SCTP_CANT_STR_ASSOC,
215};
216
217/*
218 * 5.3.1.2 SCTP_PEER_ADDR_CHANGE
219 *
220 * When a destination address on a multi-homed peer encounters a change
221 * an interface details event is sent. The information has the
222 * following structure:
223 */
224struct sctp_paddr_change {
225 __u16 spc_type;
226 __u16 spc_flags;
227 __u32 spc_length;
228 struct sockaddr_storage spc_aaddr;
229 int spc_state;
230 int spc_error;
231 sctp_assoc_t spc_assoc_id;
232} __attribute__((packed, aligned(4)));
233
234/*
235 * spc_state: 32 bits (signed integer)
236 *
237 * This field holds one of a number of values that communicate the
238 * event that happened to the address. They include:
239 */
240enum sctp_spc_state {
241 SCTP_ADDR_AVAILABLE,
242 SCTP_ADDR_UNREACHABLE,
243 SCTP_ADDR_REMOVED,
244 SCTP_ADDR_ADDED,
245 SCTP_ADDR_MADE_PRIM,
246 SCTP_ADDR_CONFIRMED,
247};
248
249
250/*
251 * 5.3.1.3 SCTP_REMOTE_ERROR
252 *
253 * A remote peer may send an Operational Error message to its peer.
254 * This message indicates a variety of error conditions on an
255 * association. The entire error TLV as it appears on the wire is
256 * included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP
257 * specification [SCTP] and any extensions for a list of possible
258 * error formats. SCTP error TLVs have the format:
259 */
260struct sctp_remote_error {
261 __u16 sre_type;
262 __u16 sre_flags;
263 __u32 sre_length;
264 __u16 sre_error;
265 sctp_assoc_t sre_assoc_id;
266 __u8 sre_data[0];
267};
268
269
270/*
271 * 5.3.1.4 SCTP_SEND_FAILED
272 *
273 * If SCTP cannot deliver a message it may return the message as a
274 * notification.
275 */
276struct sctp_send_failed {
277 __u16 ssf_type;
278 __u16 ssf_flags;
279 __u32 ssf_length;
280 __u32 ssf_error;
281 struct sctp_sndrcvinfo ssf_info;
282 sctp_assoc_t ssf_assoc_id;
283 __u8 ssf_data[0];
284};
285
286/*
287 * ssf_flags: 16 bits (unsigned integer)
288 *
289 * The flag value will take one of the following values
290 *
291 * SCTP_DATA_UNSENT - Indicates that the data was never put on
292 * the wire.
293 *
294 * SCTP_DATA_SENT - Indicates that the data was put on the wire.
295 * Note that this does not necessarily mean that the
296 * data was (or was not) successfully delivered.
297 */
298enum sctp_ssf_flags {
299 SCTP_DATA_UNSENT,
300 SCTP_DATA_SENT,
301};
302
303/*
304 * 5.3.1.5 SCTP_SHUTDOWN_EVENT
305 *
306 * When a peer sends a SHUTDOWN, SCTP delivers this notification to
307 * inform the application that it should cease sending data.
308 */
309struct sctp_shutdown_event {
310 __u16 sse_type;
311 __u16 sse_flags;
312 __u32 sse_length;
313 sctp_assoc_t sse_assoc_id;
314};
315
316/*
317 * 5.3.1.6 SCTP_ADAPTATION_INDICATION
318 *
319 * When a peer sends a Adaptation Layer Indication parameter , SCTP
320 * delivers this notification to inform the application
321 * that of the peers requested adaptation layer.
322 */
323struct sctp_adaptation_event {
324 __u16 sai_type;
325 __u16 sai_flags;
326 __u32 sai_length;
327 __u32 sai_adaptation_ind;
328 sctp_assoc_t sai_assoc_id;
329};
330
331/*
332 * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT
333 *
334 * When a receiver is engaged in a partial delivery of a
335 * message this notification will be used to indicate
336 * various events.
337 */
338struct sctp_pdapi_event {
339 __u16 pdapi_type;
340 __u16 pdapi_flags;
341 __u32 pdapi_length;
342 __u32 pdapi_indication;
343 sctp_assoc_t pdapi_assoc_id;
344};
345
346enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, };
347
348struct sctp_authkey_event {
349 __u16 auth_type;
350 __u16 auth_flags;
351 __u32 auth_length;
352 __u16 auth_keynumber;
353 __u16 auth_altkeynumber;
354 __u32 auth_indication;
355 sctp_assoc_t auth_assoc_id;
356};
357
358enum { SCTP_AUTH_NEWKEY = 0, };
359
360/*
361 * 6.1.9. SCTP_SENDER_DRY_EVENT
362 *
363 * When the SCTP stack has no more user data to send or retransmit, this
364 * notification is given to the user. Also, at the time when a user app
365 * subscribes to this event, if there is no data to be sent or
366 * retransmit, the stack will immediately send up this notification.
367 */
368struct sctp_sender_dry_event {
369 __u16 sender_dry_type;
370 __u16 sender_dry_flags;
371 __u32 sender_dry_length;
372 sctp_assoc_t sender_dry_assoc_id;
373};
374
375/*
376 * Described in Section 7.3
377 * Ancillary Data and Notification Interest Options
378 */
379struct sctp_event_subscribe {
380 __u8 sctp_data_io_event;
381 __u8 sctp_association_event;
382 __u8 sctp_address_event;
383 __u8 sctp_send_failure_event;
384 __u8 sctp_peer_error_event;
385 __u8 sctp_shutdown_event;
386 __u8 sctp_partial_delivery_event;
387 __u8 sctp_adaptation_layer_event;
388 __u8 sctp_authentication_event;
389 __u8 sctp_sender_dry_event;
390};
391
392/*
393 * 5.3.1 SCTP Notification Structure
394 *
395 * The notification structure is defined as the union of all
396 * notification types.
397 *
398 */
399union sctp_notification {
400 struct {
401 __u16 sn_type; /* Notification type. */
402 __u16 sn_flags;
403 __u32 sn_length;
404 } sn_header;
405 struct sctp_assoc_change sn_assoc_change;
406 struct sctp_paddr_change sn_paddr_change;
407 struct sctp_remote_error sn_remote_error;
408 struct sctp_send_failed sn_send_failed;
409 struct sctp_shutdown_event sn_shutdown_event;
410 struct sctp_adaptation_event sn_adaptation_event;
411 struct sctp_pdapi_event sn_pdapi_event;
412 struct sctp_authkey_event sn_authkey_event;
413 struct sctp_sender_dry_event sn_sender_dry_event;
414};
415
416/* Section 5.3.1
417 * All standard values for sn_type flags are greater than 2^15.
418 * Values from 2^15 and down are reserved.
419 */
420
421enum sctp_sn_type {
422 SCTP_SN_TYPE_BASE = (1<<15),
423 SCTP_ASSOC_CHANGE,
424 SCTP_PEER_ADDR_CHANGE,
425 SCTP_SEND_FAILED,
426 SCTP_REMOTE_ERROR,
427 SCTP_SHUTDOWN_EVENT,
428 SCTP_PARTIAL_DELIVERY_EVENT,
429 SCTP_ADAPTATION_INDICATION,
430 SCTP_AUTHENTICATION_EVENT,
431#define SCTP_AUTHENTICATION_INDICATION SCTP_AUTHENTICATION_EVENT
432 SCTP_SENDER_DRY_EVENT,
433};
434
435/* Notification error codes used to fill up the error fields in some
436 * notifications.
437 * SCTP_PEER_ADDRESS_CHAGE : spc_error
438 * SCTP_ASSOC_CHANGE : sac_error
439 * These names should be potentially included in the draft 04 of the SCTP
440 * sockets API specification.
441 */
442typedef enum sctp_sn_error {
443 SCTP_FAILED_THRESHOLD,
444 SCTP_RECEIVED_SACK,
445 SCTP_HEARTBEAT_SUCCESS,
446 SCTP_RESPONSE_TO_USER_REQ,
447 SCTP_INTERNAL_ERROR,
448 SCTP_SHUTDOWN_GUARD_EXPIRES,
449 SCTP_PEER_FAULTY,
450} sctp_sn_error_t;
451
452/*
453 * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO)
454 *
455 * The protocol parameters used to initialize and bound retransmission
456 * timeout (RTO) are tunable. See [SCTP] for more information on how
457 * these parameters are used in RTO calculation.
458 */
459struct sctp_rtoinfo {
460 sctp_assoc_t srto_assoc_id;
461 __u32 srto_initial;
462 __u32 srto_max;
463 __u32 srto_min;
464};
465
466/*
467 * 7.1.2 Association Parameters (SCTP_ASSOCINFO)
468 *
469 * This option is used to both examine and set various association and
470 * endpoint parameters.
471 */
472struct sctp_assocparams {
473 sctp_assoc_t sasoc_assoc_id;
474 __u16 sasoc_asocmaxrxt;
475 __u16 sasoc_number_peer_destinations;
476 __u32 sasoc_peer_rwnd;
477 __u32 sasoc_local_rwnd;
478 __u32 sasoc_cookie_life;
479};
480
481/*
482 * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR)
483 *
484 * Requests that the peer mark the enclosed address as the association
485 * primary. The enclosed address must be one of the association's
486 * locally bound addresses. The following structure is used to make a
487 * set primary request:
488 */
489struct sctp_setpeerprim {
490 sctp_assoc_t sspp_assoc_id;
491 struct sockaddr_storage sspp_addr;
492} __attribute__((packed, aligned(4)));
493
494/*
495 * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR)
496 *
497 * Requests that the local SCTP stack use the enclosed peer address as
498 * the association primary. The enclosed address must be one of the
499 * association peer's addresses. The following structure is used to
500 * make a set peer primary request:
501 */
502struct sctp_prim {
503 sctp_assoc_t ssp_assoc_id;
504 struct sockaddr_storage ssp_addr;
505} __attribute__((packed, aligned(4)));
506
507/*
508 * 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER)
509 *
510 * Requests that the local endpoint set the specified Adaptation Layer
511 * Indication parameter for all future INIT and INIT-ACK exchanges.
512 */
513struct sctp_setadaptation {
514 __u32 ssb_adaptation_ind;
515};
516
517/*
518 * 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS)
519 *
520 * Applications can enable or disable heartbeats for any peer address
521 * of an association, modify an address's heartbeat interval, force a
522 * heartbeat to be sent immediately, and adjust the address's maximum
523 * number of retransmissions sent before an address is considered
524 * unreachable. The following structure is used to access and modify an
525 * address's parameters:
526 */
527enum sctp_spp_flags {
528 SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/
529 SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/
530 SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE,
531 SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/
532 SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/
533 SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/
534 SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE,
535 SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/
536 SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/
537 SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE,
538 SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */
539};
540
541struct sctp_paddrparams {
542 sctp_assoc_t spp_assoc_id;
543 struct sockaddr_storage spp_address;
544 __u32 spp_hbinterval;
545 __u16 spp_pathmaxrxt;
546 __u32 spp_pathmtu;
547 __u32 spp_sackdelay;
548 __u32 spp_flags;
549} __attribute__((packed, aligned(4)));
550
551/*
552 * 7.1.18. Add a chunk that must be authenticated (SCTP_AUTH_CHUNK)
553 *
554 * This set option adds a chunk type that the user is requesting to be
555 * received only in an authenticated way. Changes to the list of chunks
556 * will only effect future associations on the socket.
557 */
558struct sctp_authchunk {
559 __u8 sauth_chunk;
560};
561
562/*
563 * 7.1.19. Get or set the list of supported HMAC Identifiers (SCTP_HMAC_IDENT)
564 *
565 * This option gets or sets the list of HMAC algorithms that the local
566 * endpoint requires the peer to use.
567*/
568struct sctp_hmacalgo {
569 __u32 shmac_num_idents;
570 __u16 shmac_idents[];
571};
572
573/*
574 * 7.1.20. Set a shared key (SCTP_AUTH_KEY)
575 *
576 * This option will set a shared secret key which is used to build an
577 * association shared key.
578 */
579struct sctp_authkey {
580 sctp_assoc_t sca_assoc_id;
581 __u16 sca_keynumber;
582 __u16 sca_keylength;
583 __u8 sca_key[];
584};
585
586/*
587 * 7.1.21. Get or set the active shared key (SCTP_AUTH_ACTIVE_KEY)
588 *
589 * This option will get or set the active shared key to be used to build
590 * the association shared key.
591 */
592
593struct sctp_authkeyid {
594 sctp_assoc_t scact_assoc_id;
595 __u16 scact_keynumber;
596};
597
598
599/*
600 * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK)
601 *
602 * This option will effect the way delayed acks are performed. This
603 * option allows you to get or set the delayed ack time, in
604 * milliseconds. It also allows changing the delayed ack frequency.
605 * Changing the frequency to 1 disables the delayed sack algorithm. If
606 * the assoc_id is 0, then this sets or gets the endpoints default
607 * values. If the assoc_id field is non-zero, then the set or get
608 * effects the specified association for the one to many model (the
609 * assoc_id field is ignored by the one to one model). Note that if
610 * sack_delay or sack_freq are 0 when setting this option, then the
611 * current values will remain unchanged.
612 */
613struct sctp_sack_info {
614 sctp_assoc_t sack_assoc_id;
615 uint32_t sack_delay;
616 uint32_t sack_freq;
617};
618
619struct sctp_assoc_value {
620 sctp_assoc_t assoc_id;
621 uint32_t assoc_value;
622};
623
624/*
625 * 7.2.2 Peer Address Information
626 *
627 * Applications can retrieve information about a specific peer address
628 * of an association, including its reachability state, congestion
629 * window, and retransmission timer values. This information is
630 * read-only. The following structure is used to access this
631 * information:
632 */
633struct sctp_paddrinfo {
634 sctp_assoc_t spinfo_assoc_id;
635 struct sockaddr_storage spinfo_address;
636 __s32 spinfo_state;
637 __u32 spinfo_cwnd;
638 __u32 spinfo_srtt;
639 __u32 spinfo_rto;
640 __u32 spinfo_mtu;
641} __attribute__((packed, aligned(4)));
642
643/* Peer addresses's state. */
644/* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x]
645 * calls.
646 * UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters.
647 * Not yet confirmed by a heartbeat and not available for data
648 * transfers.
649 * ACTIVE : Peer address confirmed, active and available for data transfers.
650 * INACTIVE: Peer address inactive and not available for data transfers.
651 */
652enum sctp_spinfo_state {
653 SCTP_INACTIVE,
654 SCTP_PF,
655 SCTP_ACTIVE,
656 SCTP_UNCONFIRMED,
657 SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */
658};
659
660/*
661 * 7.2.1 Association Status (SCTP_STATUS)
662 *
663 * Applications can retrieve current status information about an
664 * association, including association state, peer receiver window size,
665 * number of unacked data chunks, and number of data chunks pending
666 * receipt. This information is read-only. The following structure is
667 * used to access this information:
668 */
669struct sctp_status {
670 sctp_assoc_t sstat_assoc_id;
671 __s32 sstat_state;
672 __u32 sstat_rwnd;
673 __u16 sstat_unackdata;
674 __u16 sstat_penddata;
675 __u16 sstat_instrms;
676 __u16 sstat_outstrms;
677 __u32 sstat_fragmentation_point;
678 struct sctp_paddrinfo sstat_primary;
679};
680
681/*
682 * 7.2.3. Get the list of chunks the peer requires to be authenticated
683 * (SCTP_PEER_AUTH_CHUNKS)
684 *
685 * This option gets a list of chunks for a specified association that
686 * the peer requires to be received authenticated only.
687 */
688struct sctp_authchunks {
689 sctp_assoc_t gauth_assoc_id;
690 __u32 gauth_number_of_chunks;
691 uint8_t gauth_chunks[];
692};
693
694/*
695 * 8.2.6. Get the Current Identifiers of Associations
696 * (SCTP_GET_ASSOC_ID_LIST)
697 *
698 * This option gets the current list of SCTP association identifiers of
699 * the SCTP associations handled by a one-to-many style socket.
700 */
701struct sctp_assoc_ids {
702 __u32 gaids_number_of_ids;
703 sctp_assoc_t gaids_assoc_id[];
704};
705
706/*
707 * 8.3, 8.5 get all peer/local addresses in an association.
708 * This parameter struct is used by SCTP_GET_PEER_ADDRS and
709 * SCTP_GET_LOCAL_ADDRS socket options used internally to implement
710 * sctp_getpaddrs() and sctp_getladdrs() API.
711 */
712struct sctp_getaddrs_old {
713 sctp_assoc_t assoc_id;
714 int addr_num;
715 struct sockaddr __user *addrs;
716};
717struct sctp_getaddrs {
718 sctp_assoc_t assoc_id; /*input*/
719 __u32 addr_num; /*output*/
720 __u8 addrs[0]; /*output, variable size*/
721};
722
723/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves
724 * association stats. All stats are counts except sas_maxrto and
725 * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since
726 * the last call. Will return 0 when RTO was not update since last call
727 */
728struct sctp_assoc_stats {
729 sctp_assoc_t sas_assoc_id; /* Input */
730 /* Transport of observed max RTO */
731 struct sockaddr_storage sas_obs_rto_ipaddr;
732 __u64 sas_maxrto; /* Maximum Observed RTO for period */
733 __u64 sas_isacks; /* SACKs received */
734 __u64 sas_osacks; /* SACKs sent */
735 __u64 sas_opackets; /* Packets sent */
736 __u64 sas_ipackets; /* Packets received */
737 __u64 sas_rtxchunks; /* Retransmitted Chunks */
738 __u64 sas_outofseqtsns;/* TSN received > next expected */
739 __u64 sas_idupchunks; /* Dups received (ordered+unordered) */
740 __u64 sas_gapcnt; /* Gap Acknowledgements Received */
741 __u64 sas_ouodchunks; /* Unordered data chunks sent */
742 __u64 sas_iuodchunks; /* Unordered data chunks received */
743 __u64 sas_oodchunks; /* Ordered data chunks sent */
744 __u64 sas_iodchunks; /* Ordered data chunks received */
745 __u64 sas_octrlchunks; /* Control chunks sent */
746 __u64 sas_ictrlchunks; /* Control chunks received */
747};
748
749/* These are bit fields for msghdr->msg_flags. See section 5.1. */
750/* On user space Linux, these live in <bits/socket.h> as an enum. */
751enum sctp_msg_flags {
752 MSG_NOTIFICATION = 0x8000,
753#define MSG_NOTIFICATION MSG_NOTIFICATION
754};
755
756/*
757 * 8.1 sctp_bindx()
758 *
759 * The flags parameter is formed from the bitwise OR of zero or more of the
760 * following currently defined flags:
761 */
762#define SCTP_BINDX_ADD_ADDR 0x01
763#define SCTP_BINDX_REM_ADDR 0x02
764
765/* This is the structure that is passed as an argument(optval) to
766 * getsockopt(SCTP_SOCKOPT_PEELOFF).
767 */
768typedef struct {
769 sctp_assoc_t associd;
770 int sd;
771} sctp_peeloff_arg_t;
772
773/*
774 * Peer Address Thresholds socket option
775 */
776struct sctp_paddrthlds {
777 sctp_assoc_t spt_assoc_id;
778 struct sockaddr_storage spt_address;
779 __u16 spt_pathmaxrxt;
780 __u16 spt_pathpfthld;
781};
782#endif /* __net_sctp_user_h__ */
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