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   1 /*
   2  * net/tipc/msg.c: TIPC message header routines
   3  *
   4  * Copyright (c) 2000-2006, Ericsson AB
   5  * Copyright (c) 2005, Wind River Systems
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  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.
  19  *
  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
  34  * POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #include "core.h"
  38 #include "addr.h"
  39 #include "dbg.h"
  40 #include "msg.h"
  41 #include "bearer.h"
  42
  43
  44 void msg_set_media_addr(struct tipc_msg *m, struct tipc_media_addr *a)
  45 {
  46         memcpy(&((int *)m)[5], a, sizeof(*a));
  47 }
  48
  49 void msg_get_media_addr(struct tipc_msg *m, struct tipc_media_addr *a)
  50 {
  51         memcpy(a, &((int*)m)[5], sizeof(*a));
  52 }
  53
  54
  55 void msg_print(struct print_buf *buf, struct tipc_msg *msg, const char *str)
  56 {
  57         u32 usr = msg_user(msg);
  58         tipc_printf(buf, str);
  59
  60         switch (usr) {
  61         case MSG_BUNDLER:
  62                 tipc_printf(buf, "BNDL::");
  63                 tipc_printf(buf, "MSGS(%u):", msg_msgcnt(msg));
  64                 break;
  65         case BCAST_PROTOCOL:
  66                 tipc_printf(buf, "BCASTP::");
  67                 break;
  68         case MSG_FRAGMENTER:
  69                 tipc_printf(buf, "FRAGM::");
  70                 switch (msg_type(msg)) {
  71                 case FIRST_FRAGMENT:
  72                         tipc_printf(buf, "FIRST:");
  73                         break;
  74                 case FRAGMENT:
  75                         tipc_printf(buf, "BODY:");
  76                         break;
  77                 case LAST_FRAGMENT:
  78                         tipc_printf(buf, "LAST:");
  79                         break;
  80                 default:
  81                         tipc_printf(buf, "UNKNOWN:%x",msg_type(msg));
  82
  83                 }
  84                 tipc_printf(buf, "NO(%u/%u):",msg_long_msgno(msg),
  85                             msg_fragm_no(msg));
  86                 break;
  87         case DATA_LOW:
  88         case DATA_MEDIUM:
  89         case DATA_HIGH:
  90         case DATA_CRITICAL:
  91                 tipc_printf(buf, "DAT%u:", msg_user(msg));
  92                 if (msg_short(msg)) {
  93                         tipc_printf(buf, "CON:");
  94                         break;
  95                 }
  96                 switch (msg_type(msg)) {
  97                 case TIPC_CONN_MSG:
  98                         tipc_printf(buf, "CON:");
  99                         break;
 100                 case TIPC_MCAST_MSG:
 101                         tipc_printf(buf, "MCST:");
 102                         break;
 103                 case TIPC_NAMED_MSG:
 104                         tipc_printf(buf, "NAM:");
 105                         break;
 106                 case TIPC_DIRECT_MSG:
 107                         tipc_printf(buf, "DIR:");
 108                         break;
 109                 default:
 110                         tipc_printf(buf, "UNKNOWN TYPE %u",msg_type(msg));
 111                 }
 112                 if (msg_routed(msg) && !msg_non_seq(msg))
 113                         tipc_printf(buf, "ROUT:");
 114                 if (msg_reroute_cnt(msg))
 115                         tipc_printf(buf, "REROUTED(%u):",
 116                                     msg_reroute_cnt(msg));
 117                 break;
 118         case NAME_DISTRIBUTOR:
 119                 tipc_printf(buf, "NMD::");
 120                 switch (msg_type(msg)) {
 121                 case PUBLICATION:
 122                         tipc_printf(buf, "PUBL(%u):", (msg_size(msg) - msg_hdr_sz(msg)) / 20);  /* Items */
 123                         break;
 124                 case WITHDRAWAL:
 125                         tipc_printf(buf, "WDRW:");
 126                         break;
 127                 default:
 128                         tipc_printf(buf, "UNKNOWN:%x",msg_type(msg));
 129                 }
 130                 if (msg_routed(msg))
 131                         tipc_printf(buf, "ROUT:");
 132                 if (msg_reroute_cnt(msg))
 133                         tipc_printf(buf, "REROUTED(%u):",
 134                                     msg_reroute_cnt(msg));
 135                 break;
 136         case CONN_MANAGER:
 137                 tipc_printf(buf, "CONN_MNG:");
 138                 switch (msg_type(msg)) {
 139                 case CONN_PROBE:
 140                         tipc_printf(buf, "PROBE:");
 141                         break;
 142                 case CONN_PROBE_REPLY:
 143                         tipc_printf(buf, "PROBE_REPLY:");
 144                         break;
 145                 case CONN_ACK:
 146                         tipc_printf(buf, "CONN_ACK:");
 147                         tipc_printf(buf, "ACK(%u):",msg_msgcnt(msg));
 148                         break;
 149                 default:
 150                         tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
 151                 }
 152                 if (msg_routed(msg))
 153                         tipc_printf(buf, "ROUT:");
 154                 if (msg_reroute_cnt(msg))
 155                         tipc_printf(buf, "REROUTED(%u):",msg_reroute_cnt(msg));
 156                 break;
 157         case LINK_PROTOCOL:
 158                 tipc_printf(buf, "PROT:TIM(%u):",msg_timestamp(msg));
 159                 switch (msg_type(msg)) {
 160                 case STATE_MSG:
 161                         tipc_printf(buf, "STATE:");
 162                         tipc_printf(buf, "%s:",msg_probe(msg) ? "PRB" :"");
 163                         tipc_printf(buf, "NXS(%u):",msg_next_sent(msg));
 164                         tipc_printf(buf, "GAP(%u):",msg_seq_gap(msg));
 165                         tipc_printf(buf, "LSTBC(%u):",msg_last_bcast(msg));
 166                         break;
 167                 case RESET_MSG:
 168                         tipc_printf(buf, "RESET:");
 169                         if (msg_size(msg) != msg_hdr_sz(msg))
 170                                 tipc_printf(buf, "BEAR:%s:",msg_data(msg));
 171                         break;
 172                 case ACTIVATE_MSG:
 173                         tipc_printf(buf, "ACTIVATE:");
 174                         break;
 175                 default:
 176                         tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
 177                 }
 178                 tipc_printf(buf, "PLANE(%c):",msg_net_plane(msg));
 179                 tipc_printf(buf, "SESS(%u):",msg_session(msg));
 180                 break;
 181         case CHANGEOVER_PROTOCOL:
 182                 tipc_printf(buf, "TUNL:");
 183                 switch (msg_type(msg)) {
 184                 case DUPLICATE_MSG:
 185                         tipc_printf(buf, "DUPL:");
 186                         break;
 187                 case ORIGINAL_MSG:
 188                         tipc_printf(buf, "ORIG:");
 189                         tipc_printf(buf, "EXP(%u)",msg_msgcnt(msg));
 190                         break;
 191                 default:
 192                         tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
 193                 }
 194                 break;
 195         case ROUTE_DISTRIBUTOR:
 196                 tipc_printf(buf, "ROUTING_MNG:");
 197                 switch (msg_type(msg)) {
 198                 case EXT_ROUTING_TABLE:
 199                         tipc_printf(buf, "EXT_TBL:");
 200                         tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
 201                         break;
 202                 case LOCAL_ROUTING_TABLE:
 203                         tipc_printf(buf, "LOCAL_TBL:");
 204                         tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
 205                         break;
 206                 case SLAVE_ROUTING_TABLE:
 207                         tipc_printf(buf, "DP_TBL:");
 208                         tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
 209                         break;
 210                 case ROUTE_ADDITION:
 211                         tipc_printf(buf, "ADD:");
 212                         tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
 213                         break;
 214                 case ROUTE_REMOVAL:
 215                         tipc_printf(buf, "REMOVE:");
 216                         tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
 217                         break;
 218                 default:
 219                         tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
 220                 }
 221                 break;
 222         case LINK_CONFIG:
 223                 tipc_printf(buf, "CFG:");
 224                 switch (msg_type(msg)) {
 225                 case DSC_REQ_MSG:
 226                         tipc_printf(buf, "DSC_REQ:");
 227                         break;
 228                 case DSC_RESP_MSG:
 229                         tipc_printf(buf, "DSC_RESP:");
 230                         break;
 231                 default:
 232                         tipc_printf(buf, "UNKNOWN TYPE:%x:",msg_type(msg));
 233                         break;
 234                 }
 235                 break;
 236         default:
 237                 tipc_printf(buf, "UNKNOWN USER:");
 238         }
 239
 240         switch (usr) {
 241         case CONN_MANAGER:
 242         case NAME_DISTRIBUTOR:
 243         case DATA_LOW:
 244         case DATA_MEDIUM:
 245         case DATA_HIGH:
 246         case DATA_CRITICAL:
 247                 if (msg_short(msg))
 248                         break;  /* No error */
 249                 switch (msg_errcode(msg)) {
 250                 case TIPC_OK:
 251                         break;
 252                 case TIPC_ERR_NO_NAME:
 253                         tipc_printf(buf, "NO_NAME:");
 254                         break;
 255                 case TIPC_ERR_NO_PORT:
 256                         tipc_printf(buf, "NO_PORT:");
 257                         break;
 258                 case TIPC_ERR_NO_NODE:
 259                         tipc_printf(buf, "NO_PROC:");
 260                         break;
 261                 case TIPC_ERR_OVERLOAD:
 262                         tipc_printf(buf, "OVERLOAD:");
 263                         break;
 264                 case TIPC_CONN_SHUTDOWN:
 265                         tipc_printf(buf, "SHUTDOWN:");
 266                         break;
 267                 default:
 268                         tipc_printf(buf, "UNKNOWN ERROR(%x):",
 269                                     msg_errcode(msg));
 270                 }
 271         default:{}
 272         }
 273
 274         tipc_printf(buf, "HZ(%u):", msg_hdr_sz(msg));
 275         tipc_printf(buf, "SZ(%u):", msg_size(msg));
 276         tipc_printf(buf, "SQNO(%u):", msg_seqno(msg));
 277
 278         if (msg_non_seq(msg))
 279                 tipc_printf(buf, "NOSEQ:");
 280         else {
 281                 tipc_printf(buf, "ACK(%u):", msg_ack(msg));
 282         }
 283         tipc_printf(buf, "BACK(%u):", msg_bcast_ack(msg));
 284         tipc_printf(buf, "PRND(%x)", msg_prevnode(msg));
 285
 286         if (msg_isdata(msg)) {
 287                 if (msg_named(msg)) {
 288                         tipc_printf(buf, "NTYP(%u):", msg_nametype(msg));
 289                         tipc_printf(buf, "NINST(%u)", msg_nameinst(msg));
 290                 }
 291         }
 292
 293         if ((usr != LINK_PROTOCOL) && (usr != LINK_CONFIG) &&
 294             (usr != MSG_BUNDLER)) {
 295                 if (!msg_short(msg)) {
 296                         tipc_printf(buf, ":ORIG(%x:%u):",
 297                                     msg_orignode(msg), msg_origport(msg));
 298                         tipc_printf(buf, ":DEST(%x:%u):",
 299                                     msg_destnode(msg), msg_destport(msg));
 300                 } else {
 301                         tipc_printf(buf, ":OPRT(%u):", msg_origport(msg));
 302                         tipc_printf(buf, ":DPRT(%u):", msg_destport(msg));
 303                 }
 304                 if (msg_routed(msg) && !msg_non_seq(msg))
 305                         tipc_printf(buf, ":TSEQN(%u)", msg_transp_seqno(msg));
 306         }
 307         if (msg_user(msg) == NAME_DISTRIBUTOR) {
 308                 tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg));
 309                 tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg));
 310                 if (msg_routed(msg)) {
 311                         tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg));
 312                 }
 313         }
 314
 315         if (msg_user(msg) ==  LINK_CONFIG) {
 316                 u32* raw = (u32*)msg;
 317                 struct tipc_media_addr* orig = (struct tipc_media_addr*)&raw[5];
 318                 tipc_printf(buf, ":REQL(%u):", msg_req_links(msg));
 319                 tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg));
 320                 tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg));
 321                 media_addr_printf(buf, orig);
 322         }
 323         if (msg_user(msg) == BCAST_PROTOCOL) {
 324                 tipc_printf(buf, "BCNACK:AFTER(%u):", msg_bcgap_after(msg));
 325                 tipc_printf(buf, "TO(%u):", msg_bcgap_to(msg));
 326         }
 327         tipc_printf(buf, "\n");
 328         if ((usr == CHANGEOVER_PROTOCOL) && (msg_msgcnt(msg))) {
 329                 msg_print(buf,msg_get_wrapped(msg),"      /");
 330         }
 331         if ((usr == MSG_FRAGMENTER) && (msg_type(msg) == FIRST_FRAGMENT)) {
 332                 msg_print(buf,msg_get_wrapped(msg),"      /");
 333         }
 334 }