net/tipc/msg.c

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