| /* |
| * net/tipc/msg.h: Include file for TIPC message header routines |
| * |
| * Copyright (c) 2000-2007, Ericsson AB |
| * Copyright (c) 2005-2008, Wind River Systems |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the names of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef _TIPC_MSG_H |
| #define _TIPC_MSG_H |
| |
| #include "bearer.h" |
| |
| #define TIPC_VERSION 2 |
| |
| /* |
| * TIPC user data message header format, version 2: |
| * |
| * |
| * 1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0 |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w0:|vers | user |hdr sz |n|d|s|-| message size | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w1:|mstyp| error |rer cnt|lsc|opt p| broadcast ack no | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w2:| link level ack no | broadcast/link level seq no | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w3:| previous node | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w4:| originating port | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w5:| destination port | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w6:| originating node | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w7:| destination node | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w8:| name type / transport sequence number | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * w9:| name instance/multicast lower bound | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * wA:| multicast upper bound | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * / / |
| * \ options \ |
| * / / |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * |
| */ |
| |
| #define TIPC_CONN_MSG 0 |
| #define TIPC_MCAST_MSG 1 |
| #define TIPC_NAMED_MSG 2 |
| #define TIPC_DIRECT_MSG 3 |
| |
| |
| #define SHORT_H_SIZE 24 /* Connected, in-cluster messages */ |
| #define DIR_MSG_H_SIZE 32 /* Directly addressed messages */ |
| #define LONG_H_SIZE 40 /* Named messages */ |
| #define MCAST_H_SIZE 44 /* Multicast messages */ |
| #define INT_H_SIZE 40 /* Internal messages */ |
| #define MIN_H_SIZE 24 /* Smallest legal TIPC header size */ |
| #define MAX_H_SIZE 60 /* Largest possible TIPC header size */ |
| |
| #define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE) |
| |
| |
| struct tipc_msg { |
| __be32 hdr[15]; |
| }; |
| |
| |
| static inline u32 msg_word(struct tipc_msg *m, u32 pos) |
| { |
| return ntohl(m->hdr[pos]); |
| } |
| |
| static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) |
| { |
| m->hdr[w] = htonl(val); |
| } |
| |
| static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) |
| { |
| return (msg_word(m, w) >> pos) & mask; |
| } |
| |
| static inline void msg_set_bits(struct tipc_msg *m, u32 w, |
| u32 pos, u32 mask, u32 val) |
| { |
| val = (val & mask) << pos; |
| mask = mask << pos; |
| m->hdr[w] &= ~htonl(mask); |
| m->hdr[w] |= htonl(val); |
| } |
| |
| static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b) |
| { |
| u32 temp = msg->hdr[a]; |
| |
| msg->hdr[a] = msg->hdr[b]; |
| msg->hdr[b] = temp; |
| } |
| |
| /* |
| * Word 0 |
| */ |
| |
| static inline u32 msg_version(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 29, 7); |
| } |
| |
| static inline void msg_set_version(struct tipc_msg *m) |
| { |
| msg_set_bits(m, 0, 29, 7, TIPC_VERSION); |
| } |
| |
| static inline u32 msg_user(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 25, 0xf); |
| } |
| |
| static inline u32 msg_isdata(struct tipc_msg *m) |
| { |
| return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; |
| } |
| |
| static inline void msg_set_user(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 0, 25, 0xf, n); |
| } |
| |
| static inline u32 msg_importance(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 25, 0xf); |
| } |
| |
| static inline void msg_set_importance(struct tipc_msg *m, u32 i) |
| { |
| msg_set_user(m, i); |
| } |
| |
| static inline u32 msg_hdr_sz(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 21, 0xf) << 2; |
| } |
| |
| static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 0, 21, 0xf, n>>2); |
| } |
| |
| static inline u32 msg_size(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 0, 0x1ffff); |
| } |
| |
| static inline u32 msg_data_sz(struct tipc_msg *m) |
| { |
| return msg_size(m) - msg_hdr_sz(m); |
| } |
| |
| static inline int msg_non_seq(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 20, 1); |
| } |
| |
| static inline void msg_set_non_seq(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 0, 20, 1, n); |
| } |
| |
| static inline int msg_dest_droppable(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 19, 1); |
| } |
| |
| static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d) |
| { |
| msg_set_bits(m, 0, 19, 1, d); |
| } |
| |
| static inline int msg_src_droppable(struct tipc_msg *m) |
| { |
| return msg_bits(m, 0, 18, 1); |
| } |
| |
| static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d) |
| { |
| msg_set_bits(m, 0, 18, 1, d); |
| } |
| |
| static inline void msg_set_size(struct tipc_msg *m, u32 sz) |
| { |
| m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz); |
| } |
| |
| |
| /* |
| * Word 1 |
| */ |
| |
| static inline u32 msg_type(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 29, 0x7); |
| } |
| |
| static inline void msg_set_type(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 1, 29, 0x7, n); |
| } |
| |
| static inline u32 msg_named(struct tipc_msg *m) |
| { |
| return msg_type(m) == TIPC_NAMED_MSG; |
| } |
| |
| static inline u32 msg_mcast(struct tipc_msg *m) |
| { |
| return msg_type(m) == TIPC_MCAST_MSG; |
| } |
| |
| static inline u32 msg_connected(struct tipc_msg *m) |
| { |
| return msg_type(m) == TIPC_CONN_MSG; |
| } |
| |
| static inline u32 msg_errcode(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 25, 0xf); |
| } |
| |
| static inline void msg_set_errcode(struct tipc_msg *m, u32 err) |
| { |
| msg_set_bits(m, 1, 25, 0xf, err); |
| } |
| |
| static inline u32 msg_reroute_cnt(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 21, 0xf); |
| } |
| |
| static inline void msg_incr_reroute_cnt(struct tipc_msg *m) |
| { |
| msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1); |
| } |
| |
| static inline void msg_reset_reroute_cnt(struct tipc_msg *m) |
| { |
| msg_set_bits(m, 1, 21, 0xf, 0); |
| } |
| |
| static inline u32 msg_lookup_scope(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 19, 0x3); |
| } |
| |
| static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 1, 19, 0x3, n); |
| } |
| |
| static inline u32 msg_bcast_ack(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 0, 0xffff); |
| } |
| |
| static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 1, 0, 0xffff, n); |
| } |
| |
| |
| /* |
| * Word 2 |
| */ |
| |
| static inline u32 msg_ack(struct tipc_msg *m) |
| { |
| return msg_bits(m, 2, 16, 0xffff); |
| } |
| |
| static inline void msg_set_ack(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 2, 16, 0xffff, n); |
| } |
| |
| static inline u32 msg_seqno(struct tipc_msg *m) |
| { |
| return msg_bits(m, 2, 0, 0xffff); |
| } |
| |
| static inline void msg_set_seqno(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 2, 0, 0xffff, n); |
| } |
| |
| /* |
| * TIPC may utilize the "link ack #" and "link seq #" fields of a short |
| * message header to hold the destination node for the message, since the |
| * normal "dest node" field isn't present. This cache is only referenced |
| * when required, so populating the cache of a longer message header is |
| * harmless (as long as the header has the two link sequence fields present). |
| * |
| * Note: Host byte order is OK here, since the info never goes off-card. |
| */ |
| |
| static inline u32 msg_destnode_cache(struct tipc_msg *m) |
| { |
| return m->hdr[2]; |
| } |
| |
| static inline void msg_set_destnode_cache(struct tipc_msg *m, u32 dnode) |
| { |
| m->hdr[2] = dnode; |
| } |
| |
| /* |
| * Words 3-10 |
| */ |
| |
| |
| static inline u32 msg_prevnode(struct tipc_msg *m) |
| { |
| return msg_word(m, 3); |
| } |
| |
| static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) |
| { |
| msg_set_word(m, 3, a); |
| } |
| |
| static inline u32 msg_origport(struct tipc_msg *m) |
| { |
| return msg_word(m, 4); |
| } |
| |
| static inline void msg_set_origport(struct tipc_msg *m, u32 p) |
| { |
| msg_set_word(m, 4, p); |
| } |
| |
| static inline u32 msg_destport(struct tipc_msg *m) |
| { |
| return msg_word(m, 5); |
| } |
| |
| static inline void msg_set_destport(struct tipc_msg *m, u32 p) |
| { |
| msg_set_word(m, 5, p); |
| } |
| |
| static inline u32 msg_mc_netid(struct tipc_msg *m) |
| { |
| return msg_word(m, 5); |
| } |
| |
| static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) |
| { |
| msg_set_word(m, 5, p); |
| } |
| |
| static inline int msg_short(struct tipc_msg *m) |
| { |
| return msg_hdr_sz(m) == 24; |
| } |
| |
| static inline u32 msg_orignode(struct tipc_msg *m) |
| { |
| if (likely(msg_short(m))) |
| return msg_prevnode(m); |
| return msg_word(m, 6); |
| } |
| |
| static inline void msg_set_orignode(struct tipc_msg *m, u32 a) |
| { |
| msg_set_word(m, 6, a); |
| } |
| |
| static inline u32 msg_destnode(struct tipc_msg *m) |
| { |
| return msg_word(m, 7); |
| } |
| |
| static inline void msg_set_destnode(struct tipc_msg *m, u32 a) |
| { |
| msg_set_word(m, 7, a); |
| } |
| |
| static inline int msg_is_dest(struct tipc_msg *m, u32 d) |
| { |
| return msg_short(m) || (msg_destnode(m) == d); |
| } |
| |
| static inline u32 msg_routed(struct tipc_msg *m) |
| { |
| if (likely(msg_short(m))) |
| return 0; |
| return (msg_destnode(m) ^ msg_orignode(m)) >> 11; |
| } |
| |
| static inline u32 msg_nametype(struct tipc_msg *m) |
| { |
| return msg_word(m, 8); |
| } |
| |
| static inline void msg_set_nametype(struct tipc_msg *m, u32 n) |
| { |
| msg_set_word(m, 8, n); |
| } |
| |
| static inline u32 msg_transp_seqno(struct tipc_msg *m) |
| { |
| return msg_word(m, 8); |
| } |
| |
| static inline void msg_set_timestamp(struct tipc_msg *m, u32 n) |
| { |
| msg_set_word(m, 8, n); |
| } |
| |
| static inline u32 msg_timestamp(struct tipc_msg *m) |
| { |
| return msg_word(m, 8); |
| } |
| |
| static inline void msg_set_transp_seqno(struct tipc_msg *m, u32 n) |
| { |
| msg_set_word(m, 8, n); |
| } |
| |
| static inline u32 msg_nameinst(struct tipc_msg *m) |
| { |
| return msg_word(m, 9); |
| } |
| |
| static inline u32 msg_namelower(struct tipc_msg *m) |
| { |
| return msg_nameinst(m); |
| } |
| |
| static inline void msg_set_namelower(struct tipc_msg *m, u32 n) |
| { |
| msg_set_word(m, 9, n); |
| } |
| |
| static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) |
| { |
| msg_set_namelower(m, n); |
| } |
| |
| static inline u32 msg_nameupper(struct tipc_msg *m) |
| { |
| return msg_word(m, 10); |
| } |
| |
| static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) |
| { |
| msg_set_word(m, 10, n); |
| } |
| |
| static inline unchar *msg_data(struct tipc_msg *m) |
| { |
| return ((unchar *)m) + msg_hdr_sz(m); |
| } |
| |
| static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) |
| { |
| return (struct tipc_msg *)msg_data(m); |
| } |
| |
| |
| /* |
| TIPC internal message header format, version 2 |
| |
| 1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0 |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w0:|vers |msg usr|hdr sz |n|resrv| packet size | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w1:|m typ| sequence gap | broadcast ack no | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w2:| link level ack no/bc_gap_from | seq no / bcast_gap_to | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w3:| previous node | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w4:| next sent broadcast/fragm no | next sent pkt/ fragm msg no | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w5:| session no |rsv=0|r|berid|link prio|netpl|p| |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w6:| originating node | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w7:| destination node | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w8:| transport sequence number | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| w9:| msg count / bcast tag | link tolerance | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| \ \ |
| / User Specific Data / |
| \ \ |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| |
| NB: CONN_MANAGER use data message format. LINK_CONFIG has own format. |
| */ |
| |
| /* |
| * Internal users |
| */ |
| |
| #define BCAST_PROTOCOL 5 |
| #define MSG_BUNDLER 6 |
| #define LINK_PROTOCOL 7 |
| #define CONN_MANAGER 8 |
| #define ROUTE_DISTRIBUTOR 9 /* obsoleted */ |
| #define CHANGEOVER_PROTOCOL 10 |
| #define NAME_DISTRIBUTOR 11 |
| #define MSG_FRAGMENTER 12 |
| #define LINK_CONFIG 13 |
| #define DSC_H_SIZE 40 |
| |
| /* |
| * Connection management protocol messages |
| */ |
| |
| #define CONN_PROBE 0 |
| #define CONN_PROBE_REPLY 1 |
| #define CONN_ACK 2 |
| |
| /* |
| * Name distributor messages |
| */ |
| |
| #define PUBLICATION 0 |
| #define WITHDRAWAL 1 |
| |
| |
| /* |
| * Word 1 |
| */ |
| |
| static inline u32 msg_seq_gap(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 16, 0x1fff); |
| } |
| |
| static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 1, 16, 0x1fff, n); |
| } |
| |
| static inline u32 msg_req_links(struct tipc_msg *m) |
| { |
| return msg_bits(m, 1, 16, 0xfff); |
| } |
| |
| static inline void msg_set_req_links(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 1, 16, 0xfff, n); |
| } |
| |
| |
| /* |
| * Word 2 |
| */ |
| |
| static inline u32 msg_dest_domain(struct tipc_msg *m) |
| { |
| return msg_word(m, 2); |
| } |
| |
| static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n) |
| { |
| msg_set_word(m, 2, n); |
| } |
| |
| static inline u32 msg_bcgap_after(struct tipc_msg *m) |
| { |
| return msg_bits(m, 2, 16, 0xffff); |
| } |
| |
| static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 2, 16, 0xffff, n); |
| } |
| |
| static inline u32 msg_bcgap_to(struct tipc_msg *m) |
| { |
| return msg_bits(m, 2, 0, 0xffff); |
| } |
| |
| static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 2, 0, 0xffff, n); |
| } |
| |
| |
| /* |
| * Word 4 |
| */ |
| |
| static inline u32 msg_last_bcast(struct tipc_msg *m) |
| { |
| return msg_bits(m, 4, 16, 0xffff); |
| } |
| |
| static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 4, 16, 0xffff, n); |
| } |
| |
| |
| static inline u32 msg_fragm_no(struct tipc_msg *m) |
| { |
| return msg_bits(m, 4, 16, 0xffff); |
| } |
| |
| static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 4, 16, 0xffff, n); |
| } |
| |
| |
| static inline u32 msg_next_sent(struct tipc_msg *m) |
| { |
| return msg_bits(m, 4, 0, 0xffff); |
| } |
| |
| static inline void msg_set_next_sent(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 4, 0, 0xffff, n); |
| } |
| |
| |
| static inline u32 msg_long_msgno(struct tipc_msg *m) |
| { |
| return msg_bits(m, 4, 0, 0xffff); |
| } |
| |
| static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 4, 0, 0xffff, n); |
| } |
| |
| static inline u32 msg_bc_netid(struct tipc_msg *m) |
| { |
| return msg_word(m, 4); |
| } |
| |
| static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id) |
| { |
| msg_set_word(m, 4, id); |
| } |
| |
| static inline u32 msg_link_selector(struct tipc_msg *m) |
| { |
| return msg_bits(m, 4, 0, 1); |
| } |
| |
| static inline void msg_set_link_selector(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 4, 0, 1, (n & 1)); |
| } |
| |
| /* |
| * Word 5 |
| */ |
| |
| static inline u32 msg_session(struct tipc_msg *m) |
| { |
| return msg_bits(m, 5, 16, 0xffff); |
| } |
| |
| static inline void msg_set_session(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 5, 16, 0xffff, n); |
| } |
| |
| static inline u32 msg_probe(struct tipc_msg *m) |
| { |
| return msg_bits(m, 5, 0, 1); |
| } |
| |
| static inline void msg_set_probe(struct tipc_msg *m, u32 val) |
| { |
| msg_set_bits(m, 5, 0, 1, (val & 1)); |
| } |
| |
| static inline char msg_net_plane(struct tipc_msg *m) |
| { |
| return msg_bits(m, 5, 1, 7) + 'A'; |
| } |
| |
| static inline void msg_set_net_plane(struct tipc_msg *m, char n) |
| { |
| msg_set_bits(m, 5, 1, 7, (n - 'A')); |
| } |
| |
| static inline u32 msg_linkprio(struct tipc_msg *m) |
| { |
| return msg_bits(m, 5, 4, 0x1f); |
| } |
| |
| static inline void msg_set_linkprio(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 5, 4, 0x1f, n); |
| } |
| |
| static inline u32 msg_bearer_id(struct tipc_msg *m) |
| { |
| return msg_bits(m, 5, 9, 0x7); |
| } |
| |
| static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 5, 9, 0x7, n); |
| } |
| |
| static inline u32 msg_redundant_link(struct tipc_msg *m) |
| { |
| return msg_bits(m, 5, 12, 0x1); |
| } |
| |
| static inline void msg_set_redundant_link(struct tipc_msg *m) |
| { |
| msg_set_bits(m, 5, 12, 0x1, 1); |
| } |
| |
| static inline void msg_clear_redundant_link(struct tipc_msg *m) |
| { |
| msg_set_bits(m, 5, 12, 0x1, 0); |
| } |
| |
| |
| /* |
| * Word 9 |
| */ |
| |
| static inline u32 msg_msgcnt(struct tipc_msg *m) |
| { |
| return msg_bits(m, 9, 16, 0xffff); |
| } |
| |
| static inline void msg_set_msgcnt(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 9, 16, 0xffff, n); |
| } |
| |
| static inline u32 msg_bcast_tag(struct tipc_msg *m) |
| { |
| return msg_bits(m, 9, 16, 0xffff); |
| } |
| |
| static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 9, 16, 0xffff, n); |
| } |
| |
| static inline u32 msg_max_pkt(struct tipc_msg *m) |
| { |
| return msg_bits(m, 9, 16, 0xffff) * 4; |
| } |
| |
| static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 9, 16, 0xffff, (n / 4)); |
| } |
| |
| static inline u32 msg_link_tolerance(struct tipc_msg *m) |
| { |
| return msg_bits(m, 9, 0, 0xffff); |
| } |
| |
| static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n) |
| { |
| msg_set_bits(m, 9, 0, 0xffff, n); |
| } |
| |
| /* |
| * Routing table message data |
| */ |
| |
| |
| static inline u32 msg_remote_node(struct tipc_msg *m) |
| { |
| return msg_word(m, msg_hdr_sz(m)/4); |
| } |
| |
| static inline void msg_set_remote_node(struct tipc_msg *m, u32 a) |
| { |
| msg_set_word(m, msg_hdr_sz(m)/4, a); |
| } |
| |
| /* |
| * Segmentation message types |
| */ |
| |
| #define FIRST_FRAGMENT 0 |
| #define FRAGMENT 1 |
| #define LAST_FRAGMENT 2 |
| |
| /* |
| * Link management protocol message types |
| */ |
| |
| #define STATE_MSG 0 |
| #define RESET_MSG 1 |
| #define ACTIVATE_MSG 2 |
| |
| /* |
| * Changeover tunnel message types |
| */ |
| #define DUPLICATE_MSG 0 |
| #define ORIGINAL_MSG 1 |
| |
| /* |
| * Routing table message types |
| */ |
| #define EXT_ROUTING_TABLE 0 |
| #define LOCAL_ROUTING_TABLE 1 /* obsoleted */ |
| #define SLAVE_ROUTING_TABLE 2 |
| #define ROUTE_ADDITION 3 |
| #define ROUTE_REMOVAL 4 |
| |
| /* |
| * Config protocol message types |
| */ |
| |
| #define DSC_REQ_MSG 0 |
| #define DSC_RESP_MSG 1 |
| |
| u32 tipc_msg_tot_importance(struct tipc_msg *m); |
| void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, |
| u32 hsize, u32 destnode); |
| int tipc_msg_calc_data_size(struct iovec const *msg_sect, u32 num_sect); |
| int tipc_msg_build(struct tipc_msg *hdr, |
| struct iovec const *msg_sect, u32 num_sect, |
| int max_size, int usrmem, struct sk_buff **buf); |
| |
| static inline void msg_set_media_addr(struct tipc_msg *m, struct tipc_media_addr *a) |
| { |
| memcpy(&((int *)m)[5], a, sizeof(*a)); |
| } |
| |
| static inline void msg_get_media_addr(struct tipc_msg *m, struct tipc_media_addr *a) |
| { |
| memcpy(a, &((int *)m)[5], sizeof(*a)); |
| } |
| |
| #endif |
