Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * net/tipc/msg.h: Include file for TIPC message header routines |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 3 | * |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 4 | * Copyright (c) 2000-2007, 2014-2017 Ericsson AB |
Allan Stephens | 741de3e | 2011-01-25 13:33:31 -0500 | [diff] [blame] | 5 | * Copyright (c) 2005-2008, 2010-2011, Wind River Systems |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 6 | * All rights reserved. |
| 7 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 8 | * Redistribution and use in source and binary forms, with or without |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. Neither the names of the copyright holders nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 19 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 20 | * Alternatively, this software may be distributed under the terms of the |
| 21 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 22 | * Software Foundation. |
| 23 | * |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 34 | * POSSIBILITY OF SUCH DAMAGE. |
| 35 | */ |
| 36 | |
| 37 | #ifndef _TIPC_MSG_H |
| 38 | #define _TIPC_MSG_H |
| 39 | |
Ying Xue | 1da4656 | 2015-01-09 15:27:07 +0800 | [diff] [blame] | 40 | #include <linux/tipc.h> |
Jon Paul Maloy | d999297 | 2015-07-16 16:54:31 -0400 | [diff] [blame] | 41 | #include "core.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 42 | |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 43 | /* |
| 44 | * Constants and routines used to read and write TIPC payload message headers |
| 45 | * |
| 46 | * Note: Some items are also used with TIPC internal message headers |
| 47 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 48 | #define TIPC_VERSION 2 |
Jon Paul Maloy | c637c10 | 2015-02-05 08:36:41 -0500 | [diff] [blame] | 49 | struct plist; |
Allan Stephens | 06d82c9 | 2008-03-06 15:06:55 -0800 | [diff] [blame] | 50 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 51 | /* |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 52 | * Payload message users are defined in TIPC's public API: |
| 53 | * - TIPC_LOW_IMPORTANCE |
| 54 | * - TIPC_MEDIUM_IMPORTANCE |
| 55 | * - TIPC_HIGH_IMPORTANCE |
| 56 | * - TIPC_CRITICAL_IMPORTANCE |
| 57 | */ |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 58 | #define TIPC_SYSTEM_IMPORTANCE 4 |
| 59 | |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 60 | |
| 61 | /* |
| 62 | * Payload message types |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 63 | */ |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 64 | #define TIPC_CONN_MSG 0 |
| 65 | #define TIPC_MCAST_MSG 1 |
| 66 | #define TIPC_NAMED_MSG 2 |
| 67 | #define TIPC_DIRECT_MSG 3 |
Jon Maloy | ae236fb | 2017-10-13 11:04:25 +0200 | [diff] [blame] | 68 | #define TIPC_GRP_MEMBER_EVT 4 |
| 69 | #define TIPC_GRP_BCAST_MSG 5 |
Jon Maloy | 5b8dddb | 2017-10-13 11:04:29 +0200 | [diff] [blame] | 70 | #define TIPC_GRP_MCAST_MSG 6 |
| 71 | #define TIPC_GRP_UCAST_MSG 7 |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 72 | |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 73 | /* |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 74 | * Internal message users |
| 75 | */ |
| 76 | #define BCAST_PROTOCOL 5 |
| 77 | #define MSG_BUNDLER 6 |
| 78 | #define LINK_PROTOCOL 7 |
| 79 | #define CONN_MANAGER 8 |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 80 | #define GROUP_PROTOCOL 9 |
Jon Paul Maloy | dff29b1 | 2015-04-02 09:33:01 -0400 | [diff] [blame] | 81 | #define TUNNEL_PROTOCOL 10 |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 82 | #define NAME_DISTRIBUTOR 11 |
| 83 | #define MSG_FRAGMENTER 12 |
| 84 | #define LINK_CONFIG 13 |
Tuong Lien | 1ef6f7c | 2020-09-18 08:17:28 +0700 | [diff] [blame] | 85 | #define MSG_CRYPTO 14 |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 86 | #define SOCK_WAKEUP 14 /* pseudo user */ |
Jon Maloy | 14c0449 | 2017-10-13 11:04:17 +0200 | [diff] [blame] | 87 | #define TOP_SRV 15 /* pseudo user */ |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 88 | |
| 89 | /* |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 90 | * Message header sizes |
| 91 | */ |
Allan Stephens | 741d9eb | 2011-05-31 15:03:18 -0400 | [diff] [blame] | 92 | #define SHORT_H_SIZE 24 /* In-cluster basic payload message */ |
| 93 | #define BASIC_H_SIZE 32 /* Basic payload message */ |
| 94 | #define NAMED_H_SIZE 40 /* Named payload message */ |
| 95 | #define MCAST_H_SIZE 44 /* Multicast payload message */ |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 96 | #define GROUP_H_SIZE 44 /* Group payload message */ |
Allan Stephens | 06d82c9 | 2008-03-06 15:06:55 -0800 | [diff] [blame] | 97 | #define INT_H_SIZE 40 /* Internal messages */ |
| 98 | #define MIN_H_SIZE 24 /* Smallest legal TIPC header size */ |
| 99 | #define MAX_H_SIZE 60 /* Largest possible TIPC header size */ |
| 100 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 101 | #define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE) |
Jon Maloy | 4c94cc2 | 2017-11-30 16:47:25 +0100 | [diff] [blame] | 102 | #define FB_MTU 3744 |
Erik Hugne | 91e2eb5 | 2015-02-27 08:56:57 +0100 | [diff] [blame] | 103 | #define TIPC_MEDIA_INFO_OFFSET 5 |
Allan Stephens | 3d749a6 | 2011-10-07 15:19:11 -0400 | [diff] [blame] | 104 | |
Ying Xue | 859fc7c | 2015-01-09 15:27:01 +0800 | [diff] [blame] | 105 | struct tipc_skb_cb { |
Tuong Lien | fc1b6d6 | 2019-11-08 12:05:11 +0700 | [diff] [blame] | 106 | union { |
| 107 | struct { |
| 108 | struct sk_buff *tail; |
| 109 | unsigned long nxt_retr; |
| 110 | unsigned long retr_stamp; |
| 111 | u32 bytes_read; |
| 112 | u32 orig_member; |
| 113 | u16 chain_imp; |
| 114 | u16 ackers; |
| 115 | u16 retr_cnt; |
| 116 | } __packed; |
| 117 | #ifdef CONFIG_TIPC_CRYPTO |
| 118 | struct { |
| 119 | struct tipc_crypto *rx; |
| 120 | struct tipc_aead *last; |
| 121 | u8 recurs; |
| 122 | } tx_clone_ctx __packed; |
| 123 | #endif |
| 124 | } __packed; |
| 125 | union { |
| 126 | struct { |
| 127 | u8 validated:1; |
| 128 | #ifdef CONFIG_TIPC_CRYPTO |
| 129 | u8 encrypted:1; |
| 130 | u8 decrypted:1; |
Tuong Lien | daef1ee | 2020-09-18 08:17:27 +0700 | [diff] [blame] | 131 | #define SKB_PROBING 1 |
| 132 | #define SKB_GRACING 2 |
| 133 | u8 xmit_type:2; |
Tuong Lien | fc1b6d6 | 2019-11-08 12:05:11 +0700 | [diff] [blame] | 134 | u8 tx_clone_deferred:1; |
| 135 | #endif |
| 136 | }; |
| 137 | u8 flags; |
| 138 | }; |
| 139 | u8 reserved; |
| 140 | #ifdef CONFIG_TIPC_CRYPTO |
| 141 | void *crypto_ctx; |
| 142 | #endif |
| 143 | } __packed; |
Ying Xue | 859fc7c | 2015-01-09 15:27:01 +0800 | [diff] [blame] | 144 | |
| 145 | #define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0])) |
| 146 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 147 | struct tipc_msg { |
| 148 | __be32 hdr[15]; |
| 149 | }; |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 150 | |
Tuong Lien | 9195948 | 2019-04-04 11:09:51 +0700 | [diff] [blame] | 151 | /* struct tipc_gap_ack - TIPC Gap ACK block |
| 152 | * @ack: seqno of the last consecutive packet in link deferdq |
| 153 | * @gap: number of gap packets since the last ack |
| 154 | * |
| 155 | * E.g: |
| 156 | * link deferdq: 1 2 3 4 10 11 13 14 15 20 |
| 157 | * --> Gap ACK blocks: <4, 5>, <11, 1>, <15, 4>, <20, 0> |
| 158 | */ |
| 159 | struct tipc_gap_ack { |
| 160 | __be16 ack; |
| 161 | __be16 gap; |
| 162 | }; |
| 163 | |
| 164 | /* struct tipc_gap_ack_blks |
| 165 | * @len: actual length of the record |
Tuong Lien | d7626b5 | 2020-05-26 16:38:34 +0700 | [diff] [blame] | 166 | * @ugack_cnt: number of Gap ACK blocks for unicast (following the broadcast |
| 167 | * ones) |
| 168 | * @start_index: starting index for "valid" broadcast Gap ACK blocks |
| 169 | * @bgack_cnt: number of Gap ACK blocks for broadcast in the record |
Tuong Lien | 9195948 | 2019-04-04 11:09:51 +0700 | [diff] [blame] | 170 | * @gacks: array of Gap ACK blocks |
Tuong Lien | d7626b5 | 2020-05-26 16:38:34 +0700 | [diff] [blame] | 171 | * |
| 172 | * 31 16 15 0 |
| 173 | * +-------------+-------------+-------------+-------------+ |
| 174 | * | bgack_cnt | ugack_cnt | len | |
| 175 | * +-------------+-------------+-------------+-------------+ - |
| 176 | * | gap | ack | | |
| 177 | * +-------------+-------------+-------------+-------------+ > bc gacks |
| 178 | * : : : | |
| 179 | * +-------------+-------------+-------------+-------------+ - |
| 180 | * | gap | ack | | |
| 181 | * +-------------+-------------+-------------+-------------+ > uc gacks |
| 182 | * : : : | |
| 183 | * +-------------+-------------+-------------+-------------+ - |
Tuong Lien | 9195948 | 2019-04-04 11:09:51 +0700 | [diff] [blame] | 184 | */ |
| 185 | struct tipc_gap_ack_blks { |
| 186 | __be16 len; |
Tuong Lien | d7626b5 | 2020-05-26 16:38:34 +0700 | [diff] [blame] | 187 | union { |
| 188 | u8 ugack_cnt; |
| 189 | u8 start_index; |
| 190 | }; |
| 191 | u8 bgack_cnt; |
Tuong Lien | 9195948 | 2019-04-04 11:09:51 +0700 | [diff] [blame] | 192 | struct tipc_gap_ack gacks[]; |
| 193 | }; |
| 194 | |
Tuong Lien | d7626b5 | 2020-05-26 16:38:34 +0700 | [diff] [blame] | 195 | #define MAX_GAP_ACK_BLKS 128 |
Gustavo A. R. Silva | e034c6d | 2020-06-18 08:35:00 -0500 | [diff] [blame] | 196 | #define MAX_GAP_ACK_BLKS_SZ (sizeof(struct tipc_gap_ack_blks) + \ |
| 197 | sizeof(struct tipc_gap_ack) * MAX_GAP_ACK_BLKS) |
Tuong Lien | 9195948 | 2019-04-04 11:09:51 +0700 | [diff] [blame] | 198 | |
Ying Xue | 859fc7c | 2015-01-09 15:27:01 +0800 | [diff] [blame] | 199 | static inline struct tipc_msg *buf_msg(struct sk_buff *skb) |
| 200 | { |
| 201 | return (struct tipc_msg *)skb->data; |
| 202 | } |
| 203 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 204 | static inline u32 msg_word(struct tipc_msg *m, u32 pos) |
| 205 | { |
| 206 | return ntohl(m->hdr[pos]); |
| 207 | } |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 208 | |
| 209 | static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) |
| 210 | { |
| 211 | m->hdr[w] = htonl(val); |
| 212 | } |
| 213 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 214 | static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) |
| 215 | { |
| 216 | return (msg_word(m, w) >> pos) & mask; |
| 217 | } |
| 218 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 219 | static inline void msg_set_bits(struct tipc_msg *m, u32 w, |
| 220 | u32 pos, u32 mask, u32 val) |
| 221 | { |
Allan Stephens | 1f9eda7 | 2007-04-24 14:51:55 -0700 | [diff] [blame] | 222 | val = (val & mask) << pos; |
Al Viro | becf3da | 2008-04-26 22:42:14 -0700 | [diff] [blame] | 223 | mask = mask << pos; |
| 224 | m->hdr[w] &= ~htonl(mask); |
| 225 | m->hdr[w] |= htonl(val); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 226 | } |
| 227 | |
Allan Stephens | 40aecb1 | 2008-06-04 17:54:48 -0700 | [diff] [blame] | 228 | static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b) |
| 229 | { |
| 230 | u32 temp = msg->hdr[a]; |
| 231 | |
| 232 | msg->hdr[a] = msg->hdr[b]; |
| 233 | msg->hdr[b] = temp; |
| 234 | } |
| 235 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 236 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 237 | * Word 0 |
| 238 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 239 | static inline u32 msg_version(struct tipc_msg *m) |
| 240 | { |
| 241 | return msg_bits(m, 0, 29, 7); |
| 242 | } |
| 243 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 244 | static inline void msg_set_version(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 245 | { |
Allan Stephens | 3769542 | 2008-03-06 15:07:42 -0800 | [diff] [blame] | 246 | msg_set_bits(m, 0, 29, 7, TIPC_VERSION); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | static inline u32 msg_user(struct tipc_msg *m) |
| 250 | { |
| 251 | return msg_bits(m, 0, 25, 0xf); |
| 252 | } |
| 253 | |
| 254 | static inline u32 msg_isdata(struct tipc_msg *m) |
| 255 | { |
Eric Dumazet | a02cec2 | 2010-09-22 20:43:57 +0000 | [diff] [blame] | 256 | return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 257 | } |
| 258 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 259 | static inline void msg_set_user(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 260 | { |
| 261 | msg_set_bits(m, 0, 25, 0xf, n); |
| 262 | } |
| 263 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 264 | static inline u32 msg_hdr_sz(struct tipc_msg *m) |
| 265 | { |
| 266 | return msg_bits(m, 0, 21, 0xf) << 2; |
| 267 | } |
| 268 | |
Allan Stephens | 0e65967 | 2010-12-31 18:59:32 +0000 | [diff] [blame] | 269 | static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 270 | { |
| 271 | msg_set_bits(m, 0, 21, 0xf, n>>2); |
| 272 | } |
| 273 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 274 | static inline u32 msg_size(struct tipc_msg *m) |
| 275 | { |
| 276 | return msg_bits(m, 0, 0, 0x1ffff); |
| 277 | } |
| 278 | |
Jon Maloy | 5b8dddb | 2017-10-13 11:04:29 +0200 | [diff] [blame] | 279 | static inline u32 msg_blocks(struct tipc_msg *m) |
| 280 | { |
| 281 | return (msg_size(m) / 1024) + 1; |
| 282 | } |
| 283 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 284 | static inline u32 msg_data_sz(struct tipc_msg *m) |
| 285 | { |
| 286 | return msg_size(m) - msg_hdr_sz(m); |
| 287 | } |
| 288 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 289 | static inline int msg_non_seq(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 290 | { |
| 291 | return msg_bits(m, 0, 20, 1); |
| 292 | } |
| 293 | |
Allan Stephens | 40aecb1 | 2008-06-04 17:54:48 -0700 | [diff] [blame] | 294 | static inline void msg_set_non_seq(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 295 | { |
Allan Stephens | 40aecb1 | 2008-06-04 17:54:48 -0700 | [diff] [blame] | 296 | msg_set_bits(m, 0, 20, 1, n); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 297 | } |
| 298 | |
Jon Maloy | 25b9221 | 2018-09-28 20:23:21 +0200 | [diff] [blame] | 299 | static inline int msg_is_syn(struct tipc_msg *m) |
| 300 | { |
| 301 | return msg_bits(m, 0, 17, 1); |
| 302 | } |
| 303 | |
| 304 | static inline void msg_set_syn(struct tipc_msg *m, u32 d) |
| 305 | { |
| 306 | msg_set_bits(m, 0, 17, 1, d); |
| 307 | } |
| 308 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 309 | static inline int msg_dest_droppable(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 310 | { |
| 311 | return msg_bits(m, 0, 19, 1); |
| 312 | } |
| 313 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 314 | static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 315 | { |
| 316 | msg_set_bits(m, 0, 19, 1, d); |
| 317 | } |
| 318 | |
Jon Maloy | 8d6e79d | 2017-11-08 09:59:26 +0100 | [diff] [blame] | 319 | static inline int msg_is_keepalive(struct tipc_msg *m) |
| 320 | { |
| 321 | return msg_bits(m, 0, 19, 1); |
| 322 | } |
| 323 | |
| 324 | static inline void msg_set_is_keepalive(struct tipc_msg *m, u32 d) |
| 325 | { |
| 326 | msg_set_bits(m, 0, 19, 1, d); |
| 327 | } |
| 328 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 329 | static inline int msg_src_droppable(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 330 | { |
| 331 | return msg_bits(m, 0, 18, 1); |
| 332 | } |
| 333 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 334 | static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 335 | { |
| 336 | msg_set_bits(m, 0, 18, 1, d); |
| 337 | } |
| 338 | |
Jon Maloy | c0bceb9 | 2019-10-30 14:00:41 +0100 | [diff] [blame] | 339 | static inline int msg_ack_required(struct tipc_msg *m) |
| 340 | { |
| 341 | return msg_bits(m, 0, 18, 1); |
| 342 | } |
| 343 | |
Tuong Lien | 0a3e060 | 2020-05-26 16:38:38 +0700 | [diff] [blame] | 344 | static inline void msg_set_ack_required(struct tipc_msg *m) |
Jon Maloy | c0bceb9 | 2019-10-30 14:00:41 +0100 | [diff] [blame] | 345 | { |
Tuong Lien | 0a3e060 | 2020-05-26 16:38:38 +0700 | [diff] [blame] | 346 | msg_set_bits(m, 0, 18, 1, 1); |
| 347 | } |
| 348 | |
| 349 | static inline int msg_nagle_ack(struct tipc_msg *m) |
| 350 | { |
| 351 | return msg_bits(m, 0, 18, 1); |
| 352 | } |
| 353 | |
| 354 | static inline void msg_set_nagle_ack(struct tipc_msg *m) |
| 355 | { |
| 356 | msg_set_bits(m, 0, 18, 1, 1); |
Jon Maloy | c0bceb9 | 2019-10-30 14:00:41 +0100 | [diff] [blame] | 357 | } |
| 358 | |
Hoang Le | c55c8ed | 2019-03-19 18:49:50 +0700 | [diff] [blame] | 359 | static inline bool msg_is_rcast(struct tipc_msg *m) |
| 360 | { |
| 361 | return msg_bits(m, 0, 18, 0x1); |
| 362 | } |
| 363 | |
| 364 | static inline void msg_set_is_rcast(struct tipc_msg *m, bool d) |
| 365 | { |
| 366 | msg_set_bits(m, 0, 18, 0x1, d); |
| 367 | } |
| 368 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 369 | static inline void msg_set_size(struct tipc_msg *m, u32 sz) |
| 370 | { |
| 371 | m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz); |
| 372 | } |
| 373 | |
Jon Paul Maloy | 3127a02 | 2015-03-25 12:07:25 -0400 | [diff] [blame] | 374 | static inline unchar *msg_data(struct tipc_msg *m) |
| 375 | { |
| 376 | return ((unchar *)m) + msg_hdr_sz(m); |
| 377 | } |
| 378 | |
Jon Maloy | a7dc51a | 2019-06-25 19:37:00 +0200 | [diff] [blame] | 379 | static inline struct tipc_msg *msg_inner_hdr(struct tipc_msg *m) |
Jon Paul Maloy | 3127a02 | 2015-03-25 12:07:25 -0400 | [diff] [blame] | 380 | { |
| 381 | return (struct tipc_msg *)msg_data(m); |
| 382 | } |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 383 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 384 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 385 | * Word 1 |
| 386 | */ |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 387 | static inline u32 msg_type(struct tipc_msg *m) |
| 388 | { |
| 389 | return msg_bits(m, 1, 29, 0x7); |
| 390 | } |
| 391 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 392 | static inline void msg_set_type(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 393 | { |
| 394 | msg_set_bits(m, 1, 29, 0x7, n); |
| 395 | } |
| 396 | |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 397 | static inline int msg_in_group(struct tipc_msg *m) |
| 398 | { |
Jon Maloy | ae236fb | 2017-10-13 11:04:25 +0200 | [diff] [blame] | 399 | int mtyp = msg_type(m); |
| 400 | |
Jon Maloy | 27bd9ec | 2017-10-13 11:04:27 +0200 | [diff] [blame] | 401 | return mtyp >= TIPC_GRP_MEMBER_EVT && mtyp <= TIPC_GRP_UCAST_MSG; |
Jon Maloy | ae236fb | 2017-10-13 11:04:25 +0200 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | static inline bool msg_is_grp_evt(struct tipc_msg *m) |
| 405 | { |
| 406 | return msg_type(m) == TIPC_GRP_MEMBER_EVT; |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 407 | } |
| 408 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 409 | static inline u32 msg_named(struct tipc_msg *m) |
| 410 | { |
| 411 | return msg_type(m) == TIPC_NAMED_MSG; |
| 412 | } |
| 413 | |
| 414 | static inline u32 msg_mcast(struct tipc_msg *m) |
| 415 | { |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 416 | int mtyp = msg_type(m); |
| 417 | |
Jon Maloy | 5b8dddb | 2017-10-13 11:04:29 +0200 | [diff] [blame] | 418 | return ((mtyp == TIPC_MCAST_MSG) || (mtyp == TIPC_GRP_BCAST_MSG) || |
| 419 | (mtyp == TIPC_GRP_MCAST_MSG)); |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | static inline u32 msg_connected(struct tipc_msg *m) |
| 423 | { |
| 424 | return msg_type(m) == TIPC_CONN_MSG; |
| 425 | } |
| 426 | |
Hoang Le | 8b1e5b0a | 2020-03-26 09:50:29 +0700 | [diff] [blame] | 427 | static inline u32 msg_direct(struct tipc_msg *m) |
| 428 | { |
| 429 | return msg_type(m) == TIPC_DIRECT_MSG; |
| 430 | } |
| 431 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 432 | static inline u32 msg_errcode(struct tipc_msg *m) |
| 433 | { |
| 434 | return msg_bits(m, 1, 25, 0xf); |
| 435 | } |
| 436 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 437 | static inline void msg_set_errcode(struct tipc_msg *m, u32 err) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 438 | { |
| 439 | msg_set_bits(m, 1, 25, 0xf, err); |
| 440 | } |
| 441 | |
Hoang Huu Le | cad2929 | 2020-06-17 13:56:05 +0700 | [diff] [blame] | 442 | static inline void msg_set_bulk(struct tipc_msg *m) |
| 443 | { |
| 444 | msg_set_bits(m, 1, 28, 0x1, 1); |
| 445 | } |
| 446 | |
| 447 | static inline u32 msg_is_bulk(struct tipc_msg *m) |
| 448 | { |
| 449 | return msg_bits(m, 1, 28, 0x1); |
| 450 | } |
| 451 | |
| 452 | static inline void msg_set_last_bulk(struct tipc_msg *m) |
| 453 | { |
| 454 | msg_set_bits(m, 1, 27, 0x1, 1); |
| 455 | } |
| 456 | |
| 457 | static inline u32 msg_is_last_bulk(struct tipc_msg *m) |
| 458 | { |
| 459 | return msg_bits(m, 1, 27, 0x1); |
| 460 | } |
| 461 | |
| 462 | static inline void msg_set_non_legacy(struct tipc_msg *m) |
| 463 | { |
| 464 | msg_set_bits(m, 1, 26, 0x1, 1); |
| 465 | } |
| 466 | |
| 467 | static inline u32 msg_is_legacy(struct tipc_msg *m) |
| 468 | { |
| 469 | return !msg_bits(m, 1, 26, 0x1); |
| 470 | } |
| 471 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 472 | static inline u32 msg_reroute_cnt(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 473 | { |
| 474 | return msg_bits(m, 1, 21, 0xf); |
| 475 | } |
| 476 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 477 | static inline void msg_incr_reroute_cnt(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 478 | { |
| 479 | msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1); |
| 480 | } |
| 481 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 482 | static inline void msg_reset_reroute_cnt(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 483 | { |
| 484 | msg_set_bits(m, 1, 21, 0xf, 0); |
| 485 | } |
| 486 | |
| 487 | static inline u32 msg_lookup_scope(struct tipc_msg *m) |
| 488 | { |
| 489 | return msg_bits(m, 1, 19, 0x3); |
| 490 | } |
| 491 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 492 | static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 493 | { |
| 494 | msg_set_bits(m, 1, 19, 0x3, n); |
| 495 | } |
| 496 | |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 497 | static inline u16 msg_bcast_ack(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 498 | { |
| 499 | return msg_bits(m, 1, 0, 0xffff); |
| 500 | } |
| 501 | |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 502 | static inline void msg_set_bcast_ack(struct tipc_msg *m, u16 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 503 | { |
| 504 | msg_set_bits(m, 1, 0, 0xffff, n); |
| 505 | } |
| 506 | |
Tuong Lien | 91986ee | 2019-02-11 13:29:43 +0700 | [diff] [blame] | 507 | /* Note: reusing bits in word 1 for ACTIVATE_MSG only, to re-synch |
| 508 | * link peer session number |
| 509 | */ |
| 510 | static inline bool msg_dest_session_valid(struct tipc_msg *m) |
| 511 | { |
| 512 | return msg_bits(m, 1, 16, 0x1); |
| 513 | } |
| 514 | |
| 515 | static inline void msg_set_dest_session_valid(struct tipc_msg *m, bool valid) |
| 516 | { |
| 517 | msg_set_bits(m, 1, 16, 0x1, valid); |
| 518 | } |
| 519 | |
| 520 | static inline u16 msg_dest_session(struct tipc_msg *m) |
| 521 | { |
| 522 | return msg_bits(m, 1, 0, 0xffff); |
| 523 | } |
| 524 | |
| 525 | static inline void msg_set_dest_session(struct tipc_msg *m, u16 n) |
| 526 | { |
| 527 | msg_set_bits(m, 1, 0, 0xffff, n); |
| 528 | } |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 529 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 530 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 531 | * Word 2 |
| 532 | */ |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 533 | static inline u16 msg_ack(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 534 | { |
| 535 | return msg_bits(m, 2, 16, 0xffff); |
| 536 | } |
| 537 | |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 538 | static inline void msg_set_ack(struct tipc_msg *m, u16 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 539 | { |
| 540 | msg_set_bits(m, 2, 16, 0xffff, n); |
| 541 | } |
| 542 | |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 543 | static inline u16 msg_seqno(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 544 | { |
| 545 | return msg_bits(m, 2, 0, 0xffff); |
| 546 | } |
| 547 | |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 548 | static inline void msg_set_seqno(struct tipc_msg *m, u16 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 549 | { |
| 550 | msg_set_bits(m, 2, 0, 0xffff, n); |
| 551 | } |
| 552 | |
Allan Stephens | 40aecb1 | 2008-06-04 17:54:48 -0700 | [diff] [blame] | 553 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 554 | * Words 3-10 |
| 555 | */ |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 556 | static inline u32 msg_importance(struct tipc_msg *m) |
| 557 | { |
Jon Paul Maloy | f21e897 | 2015-05-14 10:46:17 -0400 | [diff] [blame] | 558 | int usr = msg_user(m); |
| 559 | |
| 560 | if (likely((usr <= TIPC_CRITICAL_IMPORTANCE) && !msg_errcode(m))) |
| 561 | return usr; |
| 562 | if ((usr == MSG_FRAGMENTER) || (usr == MSG_BUNDLER)) |
Jon Paul Maloy | dde4b5a | 2015-10-14 09:23:18 -0400 | [diff] [blame] | 563 | return msg_bits(m, 9, 0, 0x7); |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 564 | return TIPC_SYSTEM_IMPORTANCE; |
| 565 | } |
| 566 | |
| 567 | static inline void msg_set_importance(struct tipc_msg *m, u32 i) |
| 568 | { |
Jon Paul Maloy | f21e897 | 2015-05-14 10:46:17 -0400 | [diff] [blame] | 569 | int usr = msg_user(m); |
| 570 | |
| 571 | if (likely((usr == MSG_FRAGMENTER) || (usr == MSG_BUNDLER))) |
Jon Paul Maloy | dde4b5a | 2015-10-14 09:23:18 -0400 | [diff] [blame] | 572 | msg_set_bits(m, 9, 0, 0x7, i); |
Jon Paul Maloy | f21e897 | 2015-05-14 10:46:17 -0400 | [diff] [blame] | 573 | else if (i < TIPC_SYSTEM_IMPORTANCE) |
Jon Paul Maloy | e3eea1e | 2015-03-13 16:08:11 -0400 | [diff] [blame] | 574 | msg_set_user(m, i); |
| 575 | else |
| 576 | pr_warn("Trying to set illegal importance in message\n"); |
| 577 | } |
| 578 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 579 | static inline u32 msg_prevnode(struct tipc_msg *m) |
| 580 | { |
| 581 | return msg_word(m, 3); |
| 582 | } |
| 583 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 584 | static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 585 | { |
| 586 | msg_set_word(m, 3, a); |
| 587 | } |
| 588 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 589 | static inline u32 msg_origport(struct tipc_msg *m) |
| 590 | { |
Jon Paul Maloy | 3127a02 | 2015-03-25 12:07:25 -0400 | [diff] [blame] | 591 | if (msg_user(m) == MSG_FRAGMENTER) |
Jon Maloy | a7dc51a | 2019-06-25 19:37:00 +0200 | [diff] [blame] | 592 | m = msg_inner_hdr(m); |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 593 | return msg_word(m, 4); |
| 594 | } |
| 595 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 596 | static inline void msg_set_origport(struct tipc_msg *m, u32 p) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 597 | { |
| 598 | msg_set_word(m, 4, p); |
| 599 | } |
| 600 | |
Hoang Huu Le | cad2929 | 2020-06-17 13:56:05 +0700 | [diff] [blame] | 601 | static inline u16 msg_named_seqno(struct tipc_msg *m) |
| 602 | { |
| 603 | return msg_bits(m, 4, 0, 0xffff); |
| 604 | } |
| 605 | |
| 606 | static inline void msg_set_named_seqno(struct tipc_msg *m, u16 n) |
| 607 | { |
| 608 | msg_set_bits(m, 4, 0, 0xffff, n); |
| 609 | } |
| 610 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 611 | static inline u32 msg_destport(struct tipc_msg *m) |
| 612 | { |
| 613 | return msg_word(m, 5); |
| 614 | } |
| 615 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 616 | static inline void msg_set_destport(struct tipc_msg *m, u32 p) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 617 | { |
| 618 | msg_set_word(m, 5, p); |
| 619 | } |
| 620 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 621 | static inline u32 msg_mc_netid(struct tipc_msg *m) |
| 622 | { |
| 623 | return msg_word(m, 5); |
| 624 | } |
| 625 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 626 | static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 627 | { |
| 628 | msg_set_word(m, 5, p); |
| 629 | } |
| 630 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 631 | static inline int msg_short(struct tipc_msg *m) |
| 632 | { |
Allan Stephens | 741d9eb | 2011-05-31 15:03:18 -0400 | [diff] [blame] | 633 | return msg_hdr_sz(m) == SHORT_H_SIZE; |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | static inline u32 msg_orignode(struct tipc_msg *m) |
| 637 | { |
| 638 | if (likely(msg_short(m))) |
| 639 | return msg_prevnode(m); |
| 640 | return msg_word(m, 6); |
| 641 | } |
| 642 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 643 | static inline void msg_set_orignode(struct tipc_msg *m, u32 a) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 644 | { |
| 645 | msg_set_word(m, 6, a); |
| 646 | } |
| 647 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 648 | static inline u32 msg_destnode(struct tipc_msg *m) |
| 649 | { |
| 650 | return msg_word(m, 7); |
| 651 | } |
| 652 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 653 | static inline void msg_set_destnode(struct tipc_msg *m, u32 a) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 654 | { |
| 655 | msg_set_word(m, 7, a); |
| 656 | } |
| 657 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 658 | static inline u32 msg_nametype(struct tipc_msg *m) |
| 659 | { |
| 660 | return msg_word(m, 8); |
| 661 | } |
| 662 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 663 | static inline void msg_set_nametype(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 664 | { |
| 665 | msg_set_word(m, 8, n); |
| 666 | } |
| 667 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 668 | static inline u32 msg_nameinst(struct tipc_msg *m) |
| 669 | { |
| 670 | return msg_word(m, 9); |
| 671 | } |
| 672 | |
| 673 | static inline u32 msg_namelower(struct tipc_msg *m) |
| 674 | { |
| 675 | return msg_nameinst(m); |
| 676 | } |
| 677 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 678 | static inline void msg_set_namelower(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 679 | { |
| 680 | msg_set_word(m, 9, n); |
| 681 | } |
| 682 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 683 | static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 684 | { |
| 685 | msg_set_namelower(m, n); |
| 686 | } |
| 687 | |
Allan Stephens | d265fef | 2010-11-30 12:00:53 +0000 | [diff] [blame] | 688 | static inline u32 msg_nameupper(struct tipc_msg *m) |
| 689 | { |
| 690 | return msg_word(m, 10); |
| 691 | } |
| 692 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 693 | static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 694 | { |
| 695 | msg_set_word(m, 10, n); |
| 696 | } |
| 697 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 698 | /* |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 699 | * Constants and routines used to read and write TIPC internal message headers |
| 700 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 701 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 702 | /* |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 703 | * Connection management protocol message types |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 704 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 705 | #define CONN_PROBE 0 |
| 706 | #define CONN_PROBE_REPLY 1 |
| 707 | #define CONN_ACK 2 |
| 708 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 709 | /* |
Allan Stephens | cc4c435 | 2011-04-08 10:50:52 -0400 | [diff] [blame] | 710 | * Name distributor message types |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 711 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 712 | #define PUBLICATION 0 |
| 713 | #define WITHDRAWAL 1 |
| 714 | |
Allan Stephens | 92138d1 | 2011-04-08 11:04:15 -0400 | [diff] [blame] | 715 | /* |
| 716 | * Segmentation message types |
| 717 | */ |
Allan Stephens | 92138d1 | 2011-04-08 11:04:15 -0400 | [diff] [blame] | 718 | #define FIRST_FRAGMENT 0 |
| 719 | #define FRAGMENT 1 |
| 720 | #define LAST_FRAGMENT 2 |
| 721 | |
| 722 | /* |
| 723 | * Link management protocol message types |
| 724 | */ |
Allan Stephens | 92138d1 | 2011-04-08 11:04:15 -0400 | [diff] [blame] | 725 | #define STATE_MSG 0 |
| 726 | #define RESET_MSG 1 |
| 727 | #define ACTIVATE_MSG 2 |
| 728 | |
| 729 | /* |
| 730 | * Changeover tunnel message types |
| 731 | */ |
Jon Paul Maloy | dff29b1 | 2015-04-02 09:33:01 -0400 | [diff] [blame] | 732 | #define SYNCH_MSG 0 |
| 733 | #define FAILOVER_MSG 1 |
Allan Stephens | 92138d1 | 2011-04-08 11:04:15 -0400 | [diff] [blame] | 734 | |
| 735 | /* |
| 736 | * Config protocol message types |
| 737 | */ |
Allan Stephens | 92138d1 | 2011-04-08 11:04:15 -0400 | [diff] [blame] | 738 | #define DSC_REQ_MSG 0 |
| 739 | #define DSC_RESP_MSG 1 |
Jon Maloy | 25b0b9c | 2018-03-22 20:42:51 +0100 | [diff] [blame] | 740 | #define DSC_TRIAL_MSG 2 |
| 741 | #define DSC_TRIAL_FAIL_MSG 3 |
Allan Stephens | 92138d1 | 2011-04-08 11:04:15 -0400 | [diff] [blame] | 742 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 743 | /* |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 744 | * Group protocol message types |
| 745 | */ |
| 746 | #define GRP_JOIN_MSG 0 |
| 747 | #define GRP_LEAVE_MSG 1 |
Jon Maloy | b7d4263 | 2017-10-13 11:04:26 +0200 | [diff] [blame] | 748 | #define GRP_ADV_MSG 2 |
Jon Maloy | 2f48771 | 2017-10-13 11:04:31 +0200 | [diff] [blame] | 749 | #define GRP_ACK_MSG 3 |
Jon Maloy | 04d7b57 | 2017-10-13 11:04:34 +0200 | [diff] [blame] | 750 | #define GRP_RECLAIM_MSG 4 |
| 751 | #define GRP_REMIT_MSG 5 |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 752 | |
Tuong Lien | 1ef6f7c | 2020-09-18 08:17:28 +0700 | [diff] [blame] | 753 | /* Crypto message types */ |
| 754 | #define KEY_DISTR_MSG 0 |
| 755 | |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 756 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 757 | * Word 1 |
| 758 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 759 | static inline u32 msg_seq_gap(struct tipc_msg *m) |
| 760 | { |
Allan Stephens | bd78453 | 2008-06-04 17:47:30 -0700 | [diff] [blame] | 761 | return msg_bits(m, 1, 16, 0x1fff); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) |
| 765 | { |
Allan Stephens | bd78453 | 2008-06-04 17:47:30 -0700 | [diff] [blame] | 766 | msg_set_bits(m, 1, 16, 0x1fff, n); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 767 | } |
| 768 | |
Allan Stephens | fc0eea6 | 2011-10-28 16:26:41 -0400 | [diff] [blame] | 769 | static inline u32 msg_node_sig(struct tipc_msg *m) |
| 770 | { |
| 771 | return msg_bits(m, 1, 0, 0xffff); |
| 772 | } |
| 773 | |
| 774 | static inline void msg_set_node_sig(struct tipc_msg *m, u32 n) |
| 775 | { |
| 776 | msg_set_bits(m, 1, 0, 0xffff, n); |
| 777 | } |
| 778 | |
Jon Paul Maloy | 7764d6e | 2015-03-13 16:08:05 -0400 | [diff] [blame] | 779 | static inline u32 msg_node_capabilities(struct tipc_msg *m) |
| 780 | { |
| 781 | return msg_bits(m, 1, 15, 0x1fff); |
| 782 | } |
| 783 | |
| 784 | static inline void msg_set_node_capabilities(struct tipc_msg *m, u32 n) |
| 785 | { |
| 786 | msg_set_bits(m, 1, 15, 0x1fff, n); |
| 787 | } |
| 788 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 789 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 790 | * Word 2 |
| 791 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 792 | static inline u32 msg_dest_domain(struct tipc_msg *m) |
| 793 | { |
| 794 | return msg_word(m, 2); |
| 795 | } |
| 796 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 797 | static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 798 | { |
| 799 | msg_set_word(m, 2, n); |
| 800 | } |
| 801 | |
| 802 | static inline u32 msg_bcgap_after(struct tipc_msg *m) |
| 803 | { |
| 804 | return msg_bits(m, 2, 16, 0xffff); |
| 805 | } |
| 806 | |
| 807 | static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n) |
| 808 | { |
| 809 | msg_set_bits(m, 2, 16, 0xffff, n); |
| 810 | } |
| 811 | |
| 812 | static inline u32 msg_bcgap_to(struct tipc_msg *m) |
| 813 | { |
| 814 | return msg_bits(m, 2, 0, 0xffff); |
| 815 | } |
| 816 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 817 | static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 818 | { |
| 819 | msg_set_bits(m, 2, 0, 0xffff, n); |
| 820 | } |
| 821 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 822 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 823 | * Word 4 |
| 824 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 825 | static inline u32 msg_last_bcast(struct tipc_msg *m) |
| 826 | { |
| 827 | return msg_bits(m, 4, 16, 0xffff); |
| 828 | } |
| 829 | |
Jon Paul Maloy | 5266698 | 2015-10-22 08:51:41 -0400 | [diff] [blame] | 830 | static inline u32 msg_bc_snd_nxt(struct tipc_msg *m) |
| 831 | { |
| 832 | return msg_last_bcast(m) + 1; |
| 833 | } |
| 834 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 835 | static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n) |
| 836 | { |
| 837 | msg_set_bits(m, 4, 16, 0xffff, n); |
| 838 | } |
| 839 | |
Tuong Lien | 2320bcd | 2019-07-24 08:56:12 +0700 | [diff] [blame] | 840 | static inline u32 msg_nof_fragms(struct tipc_msg *m) |
| 841 | { |
| 842 | return msg_bits(m, 4, 0, 0xffff); |
| 843 | } |
| 844 | |
| 845 | static inline void msg_set_nof_fragms(struct tipc_msg *m, u32 n) |
| 846 | { |
| 847 | msg_set_bits(m, 4, 0, 0xffff, n); |
| 848 | } |
| 849 | |
| 850 | static inline u32 msg_fragm_no(struct tipc_msg *m) |
| 851 | { |
| 852 | return msg_bits(m, 4, 16, 0xffff); |
| 853 | } |
| 854 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 855 | static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n) |
| 856 | { |
| 857 | msg_set_bits(m, 4, 16, 0xffff, n); |
| 858 | } |
| 859 | |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 860 | static inline u16 msg_next_sent(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 861 | { |
| 862 | return msg_bits(m, 4, 0, 0xffff); |
| 863 | } |
| 864 | |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 865 | static inline void msg_set_next_sent(struct tipc_msg *m, u16 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 866 | { |
| 867 | msg_set_bits(m, 4, 0, 0xffff, n); |
| 868 | } |
| 869 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 870 | static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n) |
| 871 | { |
| 872 | msg_set_bits(m, 4, 0, 0xffff, n); |
| 873 | } |
| 874 | |
| 875 | static inline u32 msg_bc_netid(struct tipc_msg *m) |
| 876 | { |
| 877 | return msg_word(m, 4); |
| 878 | } |
| 879 | |
| 880 | static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id) |
| 881 | { |
| 882 | msg_set_word(m, 4, id); |
| 883 | } |
| 884 | |
| 885 | static inline u32 msg_link_selector(struct tipc_msg *m) |
| 886 | { |
Jon Paul Maloy | a853e4c | 2017-01-18 13:50:52 -0500 | [diff] [blame] | 887 | if (msg_user(m) == MSG_FRAGMENTER) |
| 888 | m = (void *)msg_data(m); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 889 | return msg_bits(m, 4, 0, 1); |
| 890 | } |
| 891 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 892 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 893 | * Word 5 |
| 894 | */ |
Jon Paul Maloy | d999297 | 2015-07-16 16:54:31 -0400 | [diff] [blame] | 895 | static inline u16 msg_session(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 896 | { |
| 897 | return msg_bits(m, 5, 16, 0xffff); |
| 898 | } |
| 899 | |
Jon Paul Maloy | d999297 | 2015-07-16 16:54:31 -0400 | [diff] [blame] | 900 | static inline void msg_set_session(struct tipc_msg *m, u16 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 901 | { |
| 902 | msg_set_bits(m, 5, 16, 0xffff, n); |
| 903 | } |
| 904 | |
| 905 | static inline u32 msg_probe(struct tipc_msg *m) |
| 906 | { |
| 907 | return msg_bits(m, 5, 0, 1); |
| 908 | } |
| 909 | |
| 910 | static inline void msg_set_probe(struct tipc_msg *m, u32 val) |
| 911 | { |
Allan Stephens | 7eb878e | 2011-05-25 13:28:27 -0400 | [diff] [blame] | 912 | msg_set_bits(m, 5, 0, 1, val); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 913 | } |
| 914 | |
| 915 | static inline char msg_net_plane(struct tipc_msg *m) |
| 916 | { |
| 917 | return msg_bits(m, 5, 1, 7) + 'A'; |
| 918 | } |
| 919 | |
| 920 | static inline void msg_set_net_plane(struct tipc_msg *m, char n) |
| 921 | { |
| 922 | msg_set_bits(m, 5, 1, 7, (n - 'A')); |
| 923 | } |
| 924 | |
| 925 | static inline u32 msg_linkprio(struct tipc_msg *m) |
| 926 | { |
| 927 | return msg_bits(m, 5, 4, 0x1f); |
| 928 | } |
| 929 | |
| 930 | static inline void msg_set_linkprio(struct tipc_msg *m, u32 n) |
| 931 | { |
| 932 | msg_set_bits(m, 5, 4, 0x1f, n); |
| 933 | } |
| 934 | |
| 935 | static inline u32 msg_bearer_id(struct tipc_msg *m) |
| 936 | { |
| 937 | return msg_bits(m, 5, 9, 0x7); |
| 938 | } |
| 939 | |
| 940 | static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n) |
| 941 | { |
| 942 | msg_set_bits(m, 5, 9, 0x7, n); |
| 943 | } |
| 944 | |
| 945 | static inline u32 msg_redundant_link(struct tipc_msg *m) |
| 946 | { |
| 947 | return msg_bits(m, 5, 12, 0x1); |
| 948 | } |
| 949 | |
Allan Stephens | 77f167f | 2011-02-28 15:30:20 -0500 | [diff] [blame] | 950 | static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 951 | { |
Allan Stephens | 77f167f | 2011-02-28 15:30:20 -0500 | [diff] [blame] | 952 | msg_set_bits(m, 5, 12, 0x1, r); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 953 | } |
| 954 | |
Jon Paul Maloy | 634696b | 2016-04-15 13:33:03 -0400 | [diff] [blame] | 955 | static inline u32 msg_peer_stopping(struct tipc_msg *m) |
| 956 | { |
| 957 | return msg_bits(m, 5, 13, 0x1); |
| 958 | } |
| 959 | |
| 960 | static inline void msg_set_peer_stopping(struct tipc_msg *m, u32 s) |
| 961 | { |
| 962 | msg_set_bits(m, 5, 13, 0x1, s); |
| 963 | } |
| 964 | |
Jon Paul Maloy | 06bd2b1 | 2016-10-27 18:51:55 -0400 | [diff] [blame] | 965 | static inline bool msg_bc_ack_invalid(struct tipc_msg *m) |
| 966 | { |
| 967 | switch (msg_user(m)) { |
| 968 | case BCAST_PROTOCOL: |
| 969 | case NAME_DISTRIBUTOR: |
| 970 | case LINK_PROTOCOL: |
| 971 | return msg_bits(m, 5, 14, 0x1); |
| 972 | default: |
| 973 | return false; |
| 974 | } |
| 975 | } |
| 976 | |
| 977 | static inline void msg_set_bc_ack_invalid(struct tipc_msg *m, bool invalid) |
| 978 | { |
| 979 | msg_set_bits(m, 5, 14, 0x1, invalid); |
| 980 | } |
| 981 | |
Allan Stephens | 3d749a6 | 2011-10-07 15:19:11 -0400 | [diff] [blame] | 982 | static inline char *msg_media_addr(struct tipc_msg *m) |
| 983 | { |
Erik Hugne | 91e2eb5 | 2015-02-27 08:56:57 +0100 | [diff] [blame] | 984 | return (char *)&m->hdr[TIPC_MEDIA_INFO_OFFSET]; |
Allan Stephens | 3d749a6 | 2011-10-07 15:19:11 -0400 | [diff] [blame] | 985 | } |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 986 | |
Jon Paul Maloy | 02d11ca | 2016-09-01 13:52:49 -0400 | [diff] [blame] | 987 | static inline u32 msg_bc_gap(struct tipc_msg *m) |
| 988 | { |
| 989 | return msg_bits(m, 8, 0, 0x3ff); |
| 990 | } |
| 991 | |
| 992 | static inline void msg_set_bc_gap(struct tipc_msg *m, u32 n) |
| 993 | { |
| 994 | msg_set_bits(m, 8, 0, 0x3ff, n); |
| 995 | } |
| 996 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 997 | /* |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 998 | * Word 9 |
| 999 | */ |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 1000 | static inline u16 msg_msgcnt(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1001 | { |
| 1002 | return msg_bits(m, 9, 16, 0xffff); |
| 1003 | } |
| 1004 | |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 1005 | static inline void msg_set_msgcnt(struct tipc_msg *m, u16 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1006 | { |
| 1007 | msg_set_bits(m, 9, 16, 0xffff, n); |
| 1008 | } |
| 1009 | |
Tuong Lien | 4929a93 | 2019-07-24 08:56:11 +0700 | [diff] [blame] | 1010 | static inline u16 msg_syncpt(struct tipc_msg *m) |
| 1011 | { |
| 1012 | return msg_bits(m, 9, 16, 0xffff); |
| 1013 | } |
| 1014 | |
| 1015 | static inline void msg_set_syncpt(struct tipc_msg *m, u16 n) |
| 1016 | { |
| 1017 | msg_set_bits(m, 9, 16, 0xffff, n); |
| 1018 | } |
| 1019 | |
Jon Paul Maloy | 10724cc | 2016-05-02 11:58:47 -0400 | [diff] [blame] | 1020 | static inline u32 msg_conn_ack(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1021 | { |
| 1022 | return msg_bits(m, 9, 16, 0xffff); |
| 1023 | } |
| 1024 | |
Jon Paul Maloy | 10724cc | 2016-05-02 11:58:47 -0400 | [diff] [blame] | 1025 | static inline void msg_set_conn_ack(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1026 | { |
| 1027 | msg_set_bits(m, 9, 16, 0xffff, n); |
| 1028 | } |
| 1029 | |
Jon Maloy | b7d4263 | 2017-10-13 11:04:26 +0200 | [diff] [blame] | 1030 | static inline u16 msg_adv_win(struct tipc_msg *m) |
Jon Paul Maloy | 10724cc | 2016-05-02 11:58:47 -0400 | [diff] [blame] | 1031 | { |
| 1032 | return msg_bits(m, 9, 0, 0xffff); |
| 1033 | } |
| 1034 | |
Jon Maloy | b7d4263 | 2017-10-13 11:04:26 +0200 | [diff] [blame] | 1035 | static inline void msg_set_adv_win(struct tipc_msg *m, u16 n) |
Jon Paul Maloy | 10724cc | 2016-05-02 11:58:47 -0400 | [diff] [blame] | 1036 | { |
| 1037 | msg_set_bits(m, 9, 0, 0xffff, n); |
| 1038 | } |
| 1039 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 1040 | static inline u32 msg_max_pkt(struct tipc_msg *m) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1041 | { |
Eric Dumazet | a02cec2 | 2010-09-22 20:43:57 +0000 | [diff] [blame] | 1042 | return msg_bits(m, 9, 16, 0xffff) * 4; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1043 | } |
| 1044 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 1045 | static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1046 | { |
| 1047 | msg_set_bits(m, 9, 16, 0xffff, (n / 4)); |
| 1048 | } |
| 1049 | |
| 1050 | static inline u32 msg_link_tolerance(struct tipc_msg *m) |
| 1051 | { |
| 1052 | return msg_bits(m, 9, 0, 0xffff); |
| 1053 | } |
| 1054 | |
| 1055 | static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n) |
| 1056 | { |
| 1057 | msg_set_bits(m, 9, 0, 0xffff, n); |
| 1058 | } |
| 1059 | |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 1060 | static inline u16 msg_grp_bc_syncpt(struct tipc_msg *m) |
| 1061 | { |
| 1062 | return msg_bits(m, 9, 16, 0xffff); |
| 1063 | } |
| 1064 | |
| 1065 | static inline void msg_set_grp_bc_syncpt(struct tipc_msg *m, u16 n) |
| 1066 | { |
| 1067 | msg_set_bits(m, 9, 16, 0xffff, n); |
| 1068 | } |
| 1069 | |
Jon Maloy | 2f48771 | 2017-10-13 11:04:31 +0200 | [diff] [blame] | 1070 | static inline u16 msg_grp_bc_acked(struct tipc_msg *m) |
| 1071 | { |
| 1072 | return msg_bits(m, 9, 16, 0xffff); |
| 1073 | } |
| 1074 | |
| 1075 | static inline void msg_set_grp_bc_acked(struct tipc_msg *m, u16 n) |
| 1076 | { |
| 1077 | msg_set_bits(m, 9, 16, 0xffff, n); |
| 1078 | } |
| 1079 | |
Jon Maloy | 04d7b57 | 2017-10-13 11:04:34 +0200 | [diff] [blame] | 1080 | static inline u16 msg_grp_remitted(struct tipc_msg *m) |
| 1081 | { |
| 1082 | return msg_bits(m, 9, 16, 0xffff); |
| 1083 | } |
| 1084 | |
| 1085 | static inline void msg_set_grp_remitted(struct tipc_msg *m, u16 n) |
| 1086 | { |
| 1087 | msg_set_bits(m, 9, 16, 0xffff, n); |
| 1088 | } |
| 1089 | |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 1090 | /* Word 10 |
| 1091 | */ |
Jon Maloy | ae236fb | 2017-10-13 11:04:25 +0200 | [diff] [blame] | 1092 | static inline u16 msg_grp_evt(struct tipc_msg *m) |
| 1093 | { |
| 1094 | return msg_bits(m, 10, 0, 0x3); |
| 1095 | } |
| 1096 | |
| 1097 | static inline void msg_set_grp_evt(struct tipc_msg *m, int n) |
| 1098 | { |
| 1099 | msg_set_bits(m, 10, 0, 0x3, n); |
| 1100 | } |
| 1101 | |
Jon Maloy | 2f48771 | 2017-10-13 11:04:31 +0200 | [diff] [blame] | 1102 | static inline u16 msg_grp_bc_ack_req(struct tipc_msg *m) |
| 1103 | { |
| 1104 | return msg_bits(m, 10, 0, 0x1); |
| 1105 | } |
| 1106 | |
| 1107 | static inline void msg_set_grp_bc_ack_req(struct tipc_msg *m, bool n) |
| 1108 | { |
| 1109 | msg_set_bits(m, 10, 0, 0x1, n); |
| 1110 | } |
| 1111 | |
Jon Maloy | 75da216 | 2017-10-13 11:04:23 +0200 | [diff] [blame] | 1112 | static inline u16 msg_grp_bc_seqno(struct tipc_msg *m) |
| 1113 | { |
| 1114 | return msg_bits(m, 10, 16, 0xffff); |
| 1115 | } |
| 1116 | |
| 1117 | static inline void msg_set_grp_bc_seqno(struct tipc_msg *m, u32 n) |
| 1118 | { |
| 1119 | msg_set_bits(m, 10, 16, 0xffff, n); |
| 1120 | } |
| 1121 | |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 1122 | static inline bool msg_peer_link_is_up(struct tipc_msg *m) |
Jon Paul Maloy | d999297 | 2015-07-16 16:54:31 -0400 | [diff] [blame] | 1123 | { |
| 1124 | if (likely(msg_user(m) != LINK_PROTOCOL)) |
| 1125 | return true; |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 1126 | if (msg_type(m) == STATE_MSG) |
| 1127 | return true; |
| 1128 | return false; |
Jon Paul Maloy | d999297 | 2015-07-16 16:54:31 -0400 | [diff] [blame] | 1129 | } |
| 1130 | |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 1131 | static inline bool msg_peer_node_is_up(struct tipc_msg *m) |
Jon Paul Maloy | 1a20cc2 | 2015-07-16 16:54:30 -0400 | [diff] [blame] | 1132 | { |
Jon Paul Maloy | 6e49815 | 2015-07-30 18:24:19 -0400 | [diff] [blame] | 1133 | if (msg_peer_link_is_up(m)) |
| 1134 | return true; |
Jon Paul Maloy | 1a20cc2 | 2015-07-16 16:54:30 -0400 | [diff] [blame] | 1135 | return msg_redundant_link(m); |
| 1136 | } |
| 1137 | |
Jon Paul Maloy | 5b7066c | 2016-04-07 10:09:14 -0400 | [diff] [blame] | 1138 | static inline bool msg_is_reset(struct tipc_msg *hdr) |
| 1139 | { |
| 1140 | return (msg_user(hdr) == LINK_PROTOCOL) && (msg_type(hdr) == RESET_MSG); |
| 1141 | } |
| 1142 | |
Hoang Le | f73b128 | 2019-10-29 07:51:21 +0700 | [diff] [blame] | 1143 | /* Word 13 |
| 1144 | */ |
| 1145 | static inline void msg_set_peer_net_hash(struct tipc_msg *m, u32 n) |
| 1146 | { |
| 1147 | msg_set_word(m, 13, n); |
| 1148 | } |
| 1149 | |
| 1150 | static inline u32 msg_peer_net_hash(struct tipc_msg *m) |
| 1151 | { |
| 1152 | return msg_word(m, 13); |
| 1153 | } |
| 1154 | |
| 1155 | /* Word 14 |
| 1156 | */ |
Jon Maloy | 25b0b9c | 2018-03-22 20:42:51 +0100 | [diff] [blame] | 1157 | static inline u32 msg_sugg_node_addr(struct tipc_msg *m) |
| 1158 | { |
| 1159 | return msg_word(m, 14); |
| 1160 | } |
| 1161 | |
| 1162 | static inline void msg_set_sugg_node_addr(struct tipc_msg *m, u32 n) |
| 1163 | { |
| 1164 | msg_set_word(m, 14, n); |
| 1165 | } |
| 1166 | |
| 1167 | static inline void msg_set_node_id(struct tipc_msg *hdr, u8 *id) |
| 1168 | { |
| 1169 | memcpy(msg_data(hdr), id, 16); |
| 1170 | } |
| 1171 | |
| 1172 | static inline u8 *msg_node_id(struct tipc_msg *hdr) |
| 1173 | { |
| 1174 | return (u8 *)msg_data(hdr); |
| 1175 | } |
| 1176 | |
Parthasarathy Bhuvaragan | 57d5f64 | 2017-01-13 15:46:25 +0100 | [diff] [blame] | 1177 | struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp); |
Jon Maloy | d618d09 | 2017-11-15 21:23:56 +0100 | [diff] [blame] | 1178 | bool tipc_msg_validate(struct sk_buff **_skb); |
Jon Paul Maloy | bcd3ffd | 2015-07-22 10:11:19 -0400 | [diff] [blame] | 1179 | bool tipc_msg_reverse(u32 own_addr, struct sk_buff **skb, int err); |
Jon Maloy | 64ac5f5 | 2017-10-13 11:04:20 +0200 | [diff] [blame] | 1180 | void tipc_skb_reject(struct net *net, int err, struct sk_buff *skb, |
| 1181 | struct sk_buff_head *xmitq); |
Jon Paul Maloy | c589863 | 2015-02-05 08:36:36 -0500 | [diff] [blame] | 1182 | void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type, |
Ying Xue | 3474753 | 2015-01-09 15:27:10 +0800 | [diff] [blame] | 1183 | u32 hsize, u32 destnode); |
Jon Paul Maloy | e3a7756 | 2015-02-05 08:36:39 -0500 | [diff] [blame] | 1184 | struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz, |
| 1185 | uint data_sz, u32 dnode, u32 onode, |
| 1186 | u32 dport, u32 oport, int errcode); |
Jon Paul Maloy | 37e2216 | 2014-05-14 05:39:12 -0400 | [diff] [blame] | 1187 | int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf); |
Tuong Lien | 06e7c70 | 2019-11-01 09:58:57 +0700 | [diff] [blame] | 1188 | bool tipc_msg_try_bundle(struct sk_buff *tskb, struct sk_buff **skb, u32 mss, |
| 1189 | u32 dnode, bool *new_bundle); |
Jon Paul Maloy | c637c10 | 2015-02-05 08:36:41 -0500 | [diff] [blame] | 1190 | bool tipc_msg_extract(struct sk_buff *skb, struct sk_buff **iskb, int *pos); |
Tuong Lien | 2320bcd | 2019-07-24 08:56:12 +0700 | [diff] [blame] | 1191 | int tipc_msg_fragment(struct sk_buff *skb, const struct tipc_msg *hdr, |
| 1192 | int pktmax, struct sk_buff_head *frags); |
Jon Paul Maloy | c589863 | 2015-02-05 08:36:36 -0500 | [diff] [blame] | 1193 | int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, |
Ying Xue | 3474753 | 2015-01-09 15:27:10 +0800 | [diff] [blame] | 1194 | int offset, int dsz, int mtu, struct sk_buff_head *list); |
Jon Maloy | c0bceb9 | 2019-10-30 14:00:41 +0100 | [diff] [blame] | 1195 | int tipc_msg_append(struct tipc_msg *hdr, struct msghdr *m, int dlen, |
| 1196 | int mss, struct sk_buff_head *txq); |
Jon Paul Maloy | cda3696 | 2015-07-22 10:11:20 -0400 | [diff] [blame] | 1197 | bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err); |
Jon Maloy | 4c94cc2 | 2017-11-30 16:47:25 +0100 | [diff] [blame] | 1198 | bool tipc_msg_assemble(struct sk_buff_head *list); |
Jon Paul Maloy | 2f56612 | 2015-10-22 08:51:39 -0400 | [diff] [blame] | 1199 | bool tipc_msg_reassemble(struct sk_buff_head *list, struct sk_buff_head *rcvq); |
Jon Paul Maloy | a853e4c | 2017-01-18 13:50:52 -0500 | [diff] [blame] | 1200 | bool tipc_msg_pskb_copy(u32 dst, struct sk_buff_head *msg, |
| 1201 | struct sk_buff_head *cpy); |
Tuong Lien | 03b6fef | 2020-05-26 16:38:37 +0700 | [diff] [blame] | 1202 | bool __tipc_skb_queue_sorted(struct sk_buff_head *list, u16 seqno, |
Jon Paul Maloy | 8306f99 | 2015-10-15 14:52:43 -0400 | [diff] [blame] | 1203 | struct sk_buff *skb); |
Tung Nguyen | 6787927 | 2018-09-28 20:23:22 +0200 | [diff] [blame] | 1204 | bool tipc_msg_skb_clone(struct sk_buff_head *msg, struct sk_buff_head *cpy); |
Jon Paul Maloy | 078bec8 | 2014-07-16 20:41:00 -0400 | [diff] [blame] | 1205 | |
Jon Paul Maloy | e4bf4f7 | 2015-05-14 10:46:14 -0400 | [diff] [blame] | 1206 | static inline u16 buf_seqno(struct sk_buff *skb) |
| 1207 | { |
| 1208 | return msg_seqno(buf_msg(skb)); |
| 1209 | } |
| 1210 | |
Jon Maloy | d618d09 | 2017-11-15 21:23:56 +0100 | [diff] [blame] | 1211 | static inline int buf_roundup_len(struct sk_buff *skb) |
| 1212 | { |
| 1213 | return (skb->len / 1024 + 1) * 1024; |
| 1214 | } |
| 1215 | |
Jon Paul Maloy | cb1b728 | 2015-02-05 08:36:44 -0500 | [diff] [blame] | 1216 | /* tipc_skb_peek(): peek and reserve first buffer in list |
| 1217 | * @list: list to be peeked in |
| 1218 | * Returns pointer to first buffer in list, if any |
| 1219 | */ |
| 1220 | static inline struct sk_buff *tipc_skb_peek(struct sk_buff_head *list, |
| 1221 | spinlock_t *lock) |
| 1222 | { |
| 1223 | struct sk_buff *skb; |
| 1224 | |
| 1225 | spin_lock_bh(lock); |
| 1226 | skb = skb_peek(list); |
| 1227 | if (skb) |
| 1228 | skb_get(skb); |
| 1229 | spin_unlock_bh(lock); |
| 1230 | return skb; |
| 1231 | } |
| 1232 | |
Jon Paul Maloy | c637c10 | 2015-02-05 08:36:41 -0500 | [diff] [blame] | 1233 | /* tipc_skb_peek_port(): find a destination port, ignoring all destinations |
| 1234 | * up to and including 'filter'. |
| 1235 | * Note: ignoring previously tried destinations minimizes the risk of |
| 1236 | * contention on the socket lock |
| 1237 | * @list: list to be peeked in |
| 1238 | * @filter: last destination to be ignored from search |
| 1239 | * Returns a destination port number, of applicable. |
| 1240 | */ |
| 1241 | static inline u32 tipc_skb_peek_port(struct sk_buff_head *list, u32 filter) |
| 1242 | { |
| 1243 | struct sk_buff *skb; |
| 1244 | u32 dport = 0; |
| 1245 | bool ignore = true; |
| 1246 | |
| 1247 | spin_lock_bh(&list->lock); |
| 1248 | skb_queue_walk(list, skb) { |
| 1249 | dport = msg_destport(buf_msg(skb)); |
| 1250 | if (!filter || skb_queue_is_last(list, skb)) |
| 1251 | break; |
| 1252 | if (dport == filter) |
| 1253 | ignore = false; |
| 1254 | else if (!ignore) |
| 1255 | break; |
| 1256 | } |
| 1257 | spin_unlock_bh(&list->lock); |
| 1258 | return dport; |
| 1259 | } |
| 1260 | |
| 1261 | /* tipc_skb_dequeue(): unlink first buffer with dest 'dport' from list |
| 1262 | * @list: list to be unlinked from |
| 1263 | * @dport: selection criteria for buffer to unlink |
| 1264 | */ |
| 1265 | static inline struct sk_buff *tipc_skb_dequeue(struct sk_buff_head *list, |
| 1266 | u32 dport) |
| 1267 | { |
| 1268 | struct sk_buff *_skb, *tmp, *skb = NULL; |
| 1269 | |
| 1270 | spin_lock_bh(&list->lock); |
| 1271 | skb_queue_walk_safe(list, _skb, tmp) { |
| 1272 | if (msg_destport(buf_msg(_skb)) == dport) { |
| 1273 | __skb_unlink(_skb, list); |
| 1274 | skb = _skb; |
| 1275 | break; |
| 1276 | } |
| 1277 | } |
| 1278 | spin_unlock_bh(&list->lock); |
| 1279 | return skb; |
| 1280 | } |
| 1281 | |
Jon Paul Maloy | 598411d | 2015-07-30 18:24:23 -0400 | [diff] [blame] | 1282 | /* tipc_skb_queue_splice_tail - append an skb list to lock protected list |
| 1283 | * @list: the new list to append. Not lock protected |
| 1284 | * @head: target list. Lock protected. |
| 1285 | */ |
| 1286 | static inline void tipc_skb_queue_splice_tail(struct sk_buff_head *list, |
| 1287 | struct sk_buff_head *head) |
| 1288 | { |
| 1289 | spin_lock_bh(&head->lock); |
| 1290 | skb_queue_splice_tail(list, head); |
| 1291 | spin_unlock_bh(&head->lock); |
| 1292 | } |
| 1293 | |
| 1294 | /* tipc_skb_queue_splice_tail_init - merge two lock protected skb lists |
| 1295 | * @list: the new list to add. Lock protected. Will be reinitialized |
| 1296 | * @head: target list. Lock protected. |
| 1297 | */ |
| 1298 | static inline void tipc_skb_queue_splice_tail_init(struct sk_buff_head *list, |
| 1299 | struct sk_buff_head *head) |
| 1300 | { |
| 1301 | struct sk_buff_head tmp; |
| 1302 | |
| 1303 | __skb_queue_head_init(&tmp); |
| 1304 | |
| 1305 | spin_lock_bh(&list->lock); |
| 1306 | skb_queue_splice_tail_init(list, &tmp); |
| 1307 | spin_unlock_bh(&list->lock); |
| 1308 | tipc_skb_queue_splice_tail(&tmp, head); |
| 1309 | } |
| 1310 | |
Tuong Lien | 382f598 | 2019-04-04 11:09:52 +0700 | [diff] [blame] | 1311 | /* __tipc_skb_dequeue() - dequeue the head skb according to expected seqno |
| 1312 | * @list: list to be dequeued from |
| 1313 | * @seqno: seqno of the expected msg |
| 1314 | * |
| 1315 | * returns skb dequeued from the list if its seqno is less than or equal to |
| 1316 | * the expected one, otherwise the skb is still hold |
| 1317 | * |
| 1318 | * Note: must be used with appropriate locks held only |
| 1319 | */ |
| 1320 | static inline struct sk_buff *__tipc_skb_dequeue(struct sk_buff_head *list, |
| 1321 | u16 seqno) |
| 1322 | { |
| 1323 | struct sk_buff *skb = skb_peek(list); |
| 1324 | |
| 1325 | if (skb && less_eq(buf_seqno(skb), seqno)) { |
| 1326 | __skb_unlink(skb, list); |
| 1327 | return skb; |
| 1328 | } |
| 1329 | return NULL; |
| 1330 | } |
| 1331 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1332 | #endif |