Root/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
46void 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 TIPC_LOW_IMPORTANCE:
234    case TIPC_MEDIUM_IMPORTANCE:
235    case TIPC_HIGH_IMPORTANCE:
236    case TIPC_CRITICAL_IMPORTANCE:
237        switch (msg_errcode(msg)) {
238        case TIPC_OK:
239            break;
240        case TIPC_ERR_NO_NAME:
241            tipc_printf(buf, "NO_NAME:");
242            break;
243        case TIPC_ERR_NO_PORT:
244            tipc_printf(buf, "NO_PORT:");
245            break;
246        case TIPC_ERR_NO_NODE:
247            tipc_printf(buf, "NO_PROC:");
248            break;
249        case TIPC_ERR_OVERLOAD:
250            tipc_printf(buf, "OVERLOAD:");
251            break;
252        case TIPC_CONN_SHUTDOWN:
253            tipc_printf(buf, "SHUTDOWN:");
254            break;
255        default:
256            tipc_printf(buf, "UNKNOWN ERROR(%x):",
257                    msg_errcode(msg));
258        }
259    default:{}
260    }
261
262    tipc_printf(buf, "HZ(%u):", msg_hdr_sz(msg));
263    tipc_printf(buf, "SZ(%u):", msg_size(msg));
264    tipc_printf(buf, "SQNO(%u):", msg_seqno(msg));
265
266    if (msg_non_seq(msg))
267        tipc_printf(buf, "NOSEQ:");
268    else {
269        tipc_printf(buf, "ACK(%u):", msg_ack(msg));
270    }
271    tipc_printf(buf, "BACK(%u):", msg_bcast_ack(msg));
272    tipc_printf(buf, "PRND(%x)", msg_prevnode(msg));
273
274    if (msg_isdata(msg)) {
275        if (msg_named(msg)) {
276            tipc_printf(buf, "NTYP(%u):", msg_nametype(msg));
277            tipc_printf(buf, "NINST(%u)", msg_nameinst(msg));
278        }
279    }
280
281    if ((usr != LINK_PROTOCOL) && (usr != LINK_CONFIG) &&
282        (usr != MSG_BUNDLER)) {
283        if (!msg_short(msg)) {
284            tipc_printf(buf, ":ORIG(%x:%u):",
285                    msg_orignode(msg), msg_origport(msg));
286            tipc_printf(buf, ":DEST(%x:%u):",
287                    msg_destnode(msg), msg_destport(msg));
288        } else {
289            tipc_printf(buf, ":OPRT(%u):", msg_origport(msg));
290            tipc_printf(buf, ":DPRT(%u):", msg_destport(msg));
291        }
292        if (msg_routed(msg) && !msg_non_seq(msg))
293            tipc_printf(buf, ":TSEQN(%u)", msg_transp_seqno(msg));
294    }
295    if (msg_user(msg) == NAME_DISTRIBUTOR) {
296        tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg));
297        tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg));
298        if (msg_routed(msg)) {
299            tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg));
300        }
301    }
302
303    if (msg_user(msg) == LINK_CONFIG) {
304        u32* raw = (u32*)msg;
305        struct tipc_media_addr* orig = (struct tipc_media_addr*)&raw[5];
306        tipc_printf(buf, ":REQL(%u):", msg_req_links(msg));
307        tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg));
308        tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg));
309        tipc_media_addr_printf(buf, orig);
310    }
311    if (msg_user(msg) == BCAST_PROTOCOL) {
312        tipc_printf(buf, "BCNACK:AFTER(%u):", msg_bcgap_after(msg));
313        tipc_printf(buf, "TO(%u):", msg_bcgap_to(msg));
314    }
315    tipc_printf(buf, "\n");
316    if ((usr == CHANGEOVER_PROTOCOL) && (msg_msgcnt(msg))) {
317        tipc_msg_dbg(buf, msg_get_wrapped(msg), " /");
318    }
319    if ((usr == MSG_FRAGMENTER) && (msg_type(msg) == FIRST_FRAGMENT)) {
320        tipc_msg_dbg(buf, msg_get_wrapped(msg), " /");
321    }
322}
323
324#endif
325

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