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linux-next/net/tipc/msg.c
Allan Stephens e0d4e3d0d7 tipc: Fix bugs in message error code display when debugging 
This patch corrects two problems in the display of error code
information in TIPC messages when debugging:
- no longer tries to display error code in NAME_DISTRIBUTOR
  messages, which don't have the error field
- now displays error code in 24 byte data messages, which do
  have the error field

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:29:09 -07:00

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/*
* net/tipc/msg.c: TIPC message header routines
*
* Copyright (c) 2000-2006, Ericsson AB
* Copyright (c) 2005, 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.
*/
#include "core.h"
#include "addr.h"
#include "dbg.h"
#include "msg.h"
#include "bearer.h"
#ifdef CONFIG_TIPC_DEBUG
void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str)
{
u32 usr = msg_user(msg);
tipc_printf(buf, str);
switch (usr) {
case MSG_BUNDLER:
tipc_printf(buf, "BNDL::");
tipc_printf(buf, "MSGS(%u):", msg_msgcnt(msg));
break;
case BCAST_PROTOCOL:
tipc_printf(buf, "BCASTP::");
break;
case MSG_FRAGMENTER:
tipc_printf(buf, "FRAGM::");
switch (msg_type(msg)) {
case FIRST_FRAGMENT:
tipc_printf(buf, "FIRST:");
break;
case FRAGMENT:
tipc_printf(buf, "BODY:");
break;
case LAST_FRAGMENT:
tipc_printf(buf, "LAST:");
break;
default:
tipc_printf(buf, "UNKNOWN:%x",msg_type(msg));
}
tipc_printf(buf, "NO(%u/%u):",msg_long_msgno(msg),
msg_fragm_no(msg));
break;
case TIPC_LOW_IMPORTANCE:
case TIPC_MEDIUM_IMPORTANCE:
case TIPC_HIGH_IMPORTANCE:
case TIPC_CRITICAL_IMPORTANCE:
tipc_printf(buf, "DAT%u:", msg_user(msg));
if (msg_short(msg)) {
tipc_printf(buf, "CON:");
break;
}
switch (msg_type(msg)) {
case TIPC_CONN_MSG:
tipc_printf(buf, "CON:");
break;
case TIPC_MCAST_MSG:
tipc_printf(buf, "MCST:");
break;
case TIPC_NAMED_MSG:
tipc_printf(buf, "NAM:");
break;
case TIPC_DIRECT_MSG:
tipc_printf(buf, "DIR:");
break;
default:
tipc_printf(buf, "UNKNOWN TYPE %u",msg_type(msg));
}
if (msg_routed(msg) && !msg_non_seq(msg))
tipc_printf(buf, "ROUT:");
if (msg_reroute_cnt(msg))
tipc_printf(buf, "REROUTED(%u):",
msg_reroute_cnt(msg));
break;
case NAME_DISTRIBUTOR:
tipc_printf(buf, "NMD::");
switch (msg_type(msg)) {
case PUBLICATION:
tipc_printf(buf, "PUBL(%u):", (msg_size(msg) - msg_hdr_sz(msg)) / 20); /* Items */
break;
case WITHDRAWAL:
tipc_printf(buf, "WDRW:");
break;
default:
tipc_printf(buf, "UNKNOWN:%x",msg_type(msg));
}
if (msg_routed(msg))
tipc_printf(buf, "ROUT:");
if (msg_reroute_cnt(msg))
tipc_printf(buf, "REROUTED(%u):",
msg_reroute_cnt(msg));
break;
case CONN_MANAGER:
tipc_printf(buf, "CONN_MNG:");
switch (msg_type(msg)) {
case CONN_PROBE:
tipc_printf(buf, "PROBE:");
break;
case CONN_PROBE_REPLY:
tipc_printf(buf, "PROBE_REPLY:");
break;
case CONN_ACK:
tipc_printf(buf, "CONN_ACK:");
tipc_printf(buf, "ACK(%u):",msg_msgcnt(msg));
break;
default:
tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
}
if (msg_routed(msg))
tipc_printf(buf, "ROUT:");
if (msg_reroute_cnt(msg))
tipc_printf(buf, "REROUTED(%u):",msg_reroute_cnt(msg));
break;
case LINK_PROTOCOL:
tipc_printf(buf, "PROT:TIM(%u):",msg_timestamp(msg));
switch (msg_type(msg)) {
case STATE_MSG:
tipc_printf(buf, "STATE:");
tipc_printf(buf, "%s:",msg_probe(msg) ? "PRB" :"");
tipc_printf(buf, "NXS(%u):",msg_next_sent(msg));
tipc_printf(buf, "GAP(%u):",msg_seq_gap(msg));
tipc_printf(buf, "LSTBC(%u):",msg_last_bcast(msg));
break;
case RESET_MSG:
tipc_printf(buf, "RESET:");
if (msg_size(msg) != msg_hdr_sz(msg))
tipc_printf(buf, "BEAR:%s:",msg_data(msg));
break;
case ACTIVATE_MSG:
tipc_printf(buf, "ACTIVATE:");
break;
default:
tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
}
tipc_printf(buf, "PLANE(%c):",msg_net_plane(msg));
tipc_printf(buf, "SESS(%u):",msg_session(msg));
break;
case CHANGEOVER_PROTOCOL:
tipc_printf(buf, "TUNL:");
switch (msg_type(msg)) {
case DUPLICATE_MSG:
tipc_printf(buf, "DUPL:");
break;
case ORIGINAL_MSG:
tipc_printf(buf, "ORIG:");
tipc_printf(buf, "EXP(%u)",msg_msgcnt(msg));
break;
default:
tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
}
break;
case ROUTE_DISTRIBUTOR:
tipc_printf(buf, "ROUTING_MNG:");
switch (msg_type(msg)) {
case EXT_ROUTING_TABLE:
tipc_printf(buf, "EXT_TBL:");
tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
break;
case LOCAL_ROUTING_TABLE:
tipc_printf(buf, "LOCAL_TBL:");
tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
break;
case SLAVE_ROUTING_TABLE:
tipc_printf(buf, "DP_TBL:");
tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
break;
case ROUTE_ADDITION:
tipc_printf(buf, "ADD:");
tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
break;
case ROUTE_REMOVAL:
tipc_printf(buf, "REMOVE:");
tipc_printf(buf, "TO:%x:",msg_remote_node(msg));
break;
default:
tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg));
}
break;
case LINK_CONFIG:
tipc_printf(buf, "CFG:");
switch (msg_type(msg)) {
case DSC_REQ_MSG:
tipc_printf(buf, "DSC_REQ:");
break;
case DSC_RESP_MSG:
tipc_printf(buf, "DSC_RESP:");
break;
default:
tipc_printf(buf, "UNKNOWN TYPE:%x:",msg_type(msg));
break;
}
break;
default:
tipc_printf(buf, "UNKNOWN USER:");
}
switch (usr) {
case CONN_MANAGER:
case TIPC_LOW_IMPORTANCE:
case TIPC_MEDIUM_IMPORTANCE:
case TIPC_HIGH_IMPORTANCE:
case TIPC_CRITICAL_IMPORTANCE:
switch (msg_errcode(msg)) {
case TIPC_OK:
break;
case TIPC_ERR_NO_NAME:
tipc_printf(buf, "NO_NAME:");
break;
case TIPC_ERR_NO_PORT:
tipc_printf(buf, "NO_PORT:");
break;
case TIPC_ERR_NO_NODE:
tipc_printf(buf, "NO_PROC:");
break;
case TIPC_ERR_OVERLOAD:
tipc_printf(buf, "OVERLOAD:");
break;
case TIPC_CONN_SHUTDOWN:
tipc_printf(buf, "SHUTDOWN:");
break;
default:
tipc_printf(buf, "UNKNOWN ERROR(%x):",
msg_errcode(msg));
}
default:{}
}
tipc_printf(buf, "HZ(%u):", msg_hdr_sz(msg));
tipc_printf(buf, "SZ(%u):", msg_size(msg));
tipc_printf(buf, "SQNO(%u):", msg_seqno(msg));
if (msg_non_seq(msg))
tipc_printf(buf, "NOSEQ:");
else {
tipc_printf(buf, "ACK(%u):", msg_ack(msg));
}
tipc_printf(buf, "BACK(%u):", msg_bcast_ack(msg));
tipc_printf(buf, "PRND(%x)", msg_prevnode(msg));
if (msg_isdata(msg)) {
if (msg_named(msg)) {
tipc_printf(buf, "NTYP(%u):", msg_nametype(msg));
tipc_printf(buf, "NINST(%u)", msg_nameinst(msg));
}
}
if ((usr != LINK_PROTOCOL) && (usr != LINK_CONFIG) &&
(usr != MSG_BUNDLER)) {
if (!msg_short(msg)) {
tipc_printf(buf, ":ORIG(%x:%u):",
msg_orignode(msg), msg_origport(msg));
tipc_printf(buf, ":DEST(%x:%u):",
msg_destnode(msg), msg_destport(msg));
} else {
tipc_printf(buf, ":OPRT(%u):", msg_origport(msg));
tipc_printf(buf, ":DPRT(%u):", msg_destport(msg));
}
if (msg_routed(msg) && !msg_non_seq(msg))
tipc_printf(buf, ":TSEQN(%u)", msg_transp_seqno(msg));
}
if (msg_user(msg) == NAME_DISTRIBUTOR) {
tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg));
tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg));
if (msg_routed(msg)) {
tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg));
}
}
if (msg_user(msg) == LINK_CONFIG) {
u32* raw = (u32*)msg;
struct tipc_media_addr* orig = (struct tipc_media_addr*)&raw[5];
tipc_printf(buf, ":REQL(%u):", msg_req_links(msg));
tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg));
tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg));
tipc_media_addr_printf(buf, orig);
}
if (msg_user(msg) == BCAST_PROTOCOL) {
tipc_printf(buf, "BCNACK:AFTER(%u):", msg_bcgap_after(msg));
tipc_printf(buf, "TO(%u):", msg_bcgap_to(msg));
}
tipc_printf(buf, "\n");
if ((usr == CHANGEOVER_PROTOCOL) && (msg_msgcnt(msg))) {
tipc_msg_dbg(buf, msg_get_wrapped(msg), " /");
}
if ((usr == MSG_FRAGMENTER) && (msg_type(msg) == FIRST_FRAGMENT)) {
tipc_msg_dbg(buf, msg_get_wrapped(msg), " /");
}
}
#endif
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