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tcpdump/print-tipc.c
Guy Harris 7068209574 Use nd_ types in 802.x and FDDI headers. 
Use EXTRACT_U_1() as required by those changes.  Remove
no-longer-necessary & operators from other EXTRACT_ calls.

While we're at it, add MAC_ADDR_LEN to netdissect.h, and use it instead
of ETHER_ADDR_LEN; eliminate ETHER_ADDR_LEN.

Move the maximum Ethernet length field value to ethertype.h, under the
name MAX_ETHERNET_LENGTH_VAL.

Move the Ethernet header structure, and the #define for the Ethernet
header length, to print-ether.c; in non-Ethernet dissectors that were
using the Ethernet header structure, just declare two nd_mac_addr
variables for the source and destination MAC addresses and use them
instead of the Ethernet header (we don't need the type field there).

These changes leave nothing in ether.h, so eliminate it.
2017-12-12 10:36:21 -08:00

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/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* \summary: Transparent Inter-Process Communication (TIPC) protocol printer */
/*
* specification:
* http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html
* http://tipc.sourceforge.net/doc/tipc_message_formats.html
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <netdissect-stdinc.h>
#include "netdissect.h"
#include "ethertype.h"
#include "extract.h"
static const char tstr[] = "[|TIPC]";
#define TIPC_USER_LOW_IMPORTANCE 0
#define TIPC_USER_MEDIUM_IMPORTANCE 1
#define TIPC_USER_HIGH_IMPORTANCE 2
#define TIPC_USER_CRITICAL_IMPORTANCE 3
#define TIPC_USER_BCAST_PROTOCOL 5
#define TIPC_USER_MSG_BUNDLER 6
#define TIPC_USER_LINK_PROTOCOL 7
#define TIPC_USER_CONN_MANAGER 8
#define TIPC_USER_CHANGEOVER_PROTOCOL 10
#define TIPC_USER_NAME_DISTRIBUTOR 11
#define TIPC_USER_MSG_FRAGMENTER 12
#define TIPC_USER_LINK_CONFIG 13
#define TIPC_CONN_MSG 0
#define TIPC_DIRECT_MSG 1
#define TIPC_NAMED_MSG 2
#define TIPC_MCAST_MSG 3
#define TIPC_ZONE(addr) (((addr) >> 24) & 0xFF)
#define TIPC_CLUSTER(addr) (((addr) >> 12) & 0xFFF)
#define TIPC_NODE(addr) (((addr) >> 0) & 0xFFF)
struct tipc_pkthdr {
uint32_t w0;
uint32_t w1;
};
#define TIPC_VER(w0) (((w0) >> 29) & 0x07)
#define TIPC_USER(w0) (((w0) >> 25) & 0x0F)
#define TIPC_HSIZE(w0) (((w0) >> 21) & 0x0F)
#define TIPC_MSIZE(w0) (((w0) >> 0) & 0xFFFF)
#define TIPC_MTYPE(w1) (((w1) >> 29) & 0x07)
#define TIPC_BROADCAST_ACK(w1) (((w1) >> 0) & 0xFFFF)
#define TIPC_LINK_ACK(w2) (((w2) >> 16) & 0xFFFF)
#define TIPC_LINK_SEQ(w2) (((w2) >> 0) & 0xFFFF)
static const struct tok tipcuser_values[] = {
{ TIPC_USER_LOW_IMPORTANCE, "Low Importance Data payload" },
{ TIPC_USER_MEDIUM_IMPORTANCE, "Medium Importance Data payload" },
{ TIPC_USER_HIGH_IMPORTANCE, "High Importance Data payload" },
{ TIPC_USER_CRITICAL_IMPORTANCE, "Critical Importance Data payload" },
{ TIPC_USER_BCAST_PROTOCOL, "Broadcast Link Protocol internal" },
{ TIPC_USER_MSG_BUNDLER, "Message Bundler Protocol internal" },
{ TIPC_USER_LINK_PROTOCOL, "Link State Protocol internal" },
{ TIPC_USER_CONN_MANAGER, "Connection Manager internal" },
{ TIPC_USER_CHANGEOVER_PROTOCOL, "Link Changeover Protocol internal" },
{ TIPC_USER_NAME_DISTRIBUTOR, "Name Table Update Protocol internal" },
{ TIPC_USER_MSG_FRAGMENTER, "Message Fragmentation Protocol internal" },
{ TIPC_USER_LINK_CONFIG, "Neighbor Detection Protocol internal" },
{ 0, NULL }
};
static const struct tok tipcmtype_values[] = {
{ TIPC_CONN_MSG, "CONN_MSG" },
{ TIPC_DIRECT_MSG, "MCAST_MSG" },
{ TIPC_NAMED_MSG, "NAMED_MSG" },
{ TIPC_MCAST_MSG, "DIRECT_MSG" },
{ 0, NULL }
};
static const struct tok tipc_linkconf_mtype_values[] = {
{ 0, "Link request" },
{ 1, "Link response" },
{ 0, NULL }
};
struct payload_tipc_pkthdr {
uint32_t w0;
uint32_t w1;
uint32_t w2;
uint32_t prev_node;
uint32_t orig_port;
uint32_t dest_port;
uint32_t orig_node;
uint32_t dest_node;
uint32_t name_type;
uint32_t w9;
uint32_t wA;
};
struct internal_tipc_pkthdr {
uint32_t w0;
uint32_t w1;
uint32_t w2;
uint32_t prev_node;
uint32_t w4;
uint32_t w5;
uint32_t orig_node;
uint32_t dest_node;
uint32_t trans_seq;
uint32_t w9;
};
#define TIPC_SEQ_GAP(w1) (((w1) >> 16) & 0x1FFF)
#define TIPC_BC_GAP_AFTER(w2) (((w2) >> 16) & 0xFFFF)
#define TIPC_BC_GAP_TO(w2) (((w2) >> 0) & 0xFFFF)
#define TIPC_LAST_SENT_FRAG(w4) (((w4) >> 16) & 0xFFFF)
#define TIPC_NEXT_SENT_FRAG(w4) (((w4) >> 0) & 0xFFFF)
#define TIPC_SESS_NO(w5) (((w5) >> 16) & 0xFFFF)
#define TIPC_MSG_CNT(w9) (((w9) >> 16) & 0xFFFF)
#define TIPC_LINK_TOL(w9) (((w9) >> 0) & 0xFFFF)
struct link_conf_tipc_pkthdr {
uint32_t w0;
uint32_t w1;
uint32_t dest_domain;
uint32_t prev_node;
uint32_t ntwrk_id;
uint32_t w5;
uint8_t media_address[16];
};
#define TIPC_NODE_SIG(w1) (((w1) >> 0) & 0xFFFF)
#define TIPC_MEDIA_ID(w5) (((w5) >> 0) & 0xFF)
static void
print_payload(netdissect_options *ndo, const struct payload_tipc_pkthdr *ap)
{
uint32_t w0, w1, w2;
u_int user;
u_int hsize;
u_int msize;
u_int mtype;
u_int broadcast_ack;
u_int link_ack;
u_int link_seq;
u_int prev_node;
u_int orig_port;
u_int dest_port;
u_int orig_node;
u_int dest_node;
ND_TCHECK(ap->dest_port);
w0 = EXTRACT_BE_U_4(&ap->w0);
user = TIPC_USER(w0);
hsize = TIPC_HSIZE(w0);
msize = TIPC_MSIZE(w0);
w1 = EXTRACT_BE_U_4(&ap->w1);
mtype = TIPC_MTYPE(w1);
prev_node = EXTRACT_BE_U_4(&ap->prev_node);
orig_port = EXTRACT_BE_U_4(&ap->orig_port);
dest_port = EXTRACT_BE_U_4(&ap->dest_port);
if (hsize <= 6) {
ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
TIPC_VER(w0),
TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
orig_port, dest_port,
hsize*4, msize,
tok2str(tipcuser_values, "unknown", user),
tok2str(tipcmtype_values, "Unknown", mtype)));
} else {
ND_TCHECK(ap->dest_node);
orig_node = EXTRACT_BE_U_4(&ap->orig_node);
dest_node = EXTRACT_BE_U_4(&ap->dest_node);
ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u.%u.%u:%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
TIPC_VER(w0),
TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
orig_port,
TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
dest_port,
hsize*4, msize,
tok2str(tipcuser_values, "unknown", user),
tok2str(tipcmtype_values, "Unknown", mtype)));
if (ndo->ndo_vflag) {
broadcast_ack = TIPC_BROADCAST_ACK(w1);
w2 = EXTRACT_BE_U_4(&ap->w2);
link_ack = TIPC_LINK_ACK(w2);
link_seq = TIPC_LINK_SEQ(w2);
ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Broadcast Ack %u, Link Ack %u, Link Sequence %u",
TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
broadcast_ack, link_ack, link_seq));
}
}
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
print_internal(netdissect_options *ndo, const struct internal_tipc_pkthdr *ap)
{
uint32_t w0, w1, w2, w4, w5, w9;
u_int user;
u_int hsize;
u_int msize;
u_int mtype;
u_int seq_gap;
u_int broadcast_ack;
u_int bc_gap_after;
u_int bc_gap_to;
u_int prev_node;
u_int last_sent_frag;
u_int next_sent_frag;
u_int sess_no;
u_int orig_node;
u_int dest_node;
u_int trans_seq;
u_int msg_cnt;
u_int link_tol;
ND_TCHECK(ap->dest_node);
w0 = EXTRACT_BE_U_4(&ap->w0);
user = TIPC_USER(w0);
hsize = TIPC_HSIZE(w0);
msize = TIPC_MSIZE(w0);
w1 = EXTRACT_BE_U_4(&ap->w1);
mtype = TIPC_MTYPE(w1);
orig_node = EXTRACT_BE_U_4(&ap->orig_node);
dest_node = EXTRACT_BE_U_4(&ap->dest_node);
ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s (0x%08x)",
TIPC_VER(w0),
TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
hsize*4, msize,
tok2str(tipcuser_values, "unknown", user),
tok2str(tipcmtype_values, "Unknown", mtype), w1));
if (ndo->ndo_vflag) {
ND_TCHECK(*ap);
seq_gap = TIPC_SEQ_GAP(w1);
broadcast_ack = TIPC_BROADCAST_ACK(w1);
w2 = EXTRACT_BE_U_4(&ap->w2);
bc_gap_after = TIPC_BC_GAP_AFTER(w2);
bc_gap_to = TIPC_BC_GAP_TO(w2);
prev_node = EXTRACT_BE_U_4(&ap->prev_node);
w4 = EXTRACT_BE_U_4(&ap->w4);
last_sent_frag = TIPC_LAST_SENT_FRAG(w4);
next_sent_frag = TIPC_NEXT_SENT_FRAG(w4);
w5 = EXTRACT_BE_U_4(&ap->w5);
sess_no = TIPC_SESS_NO(w5);
trans_seq = EXTRACT_BE_U_4(&ap->trans_seq);
w9 = EXTRACT_BE_U_4(&ap->w9);
msg_cnt = TIPC_MSG_CNT(w9);
link_tol = TIPC_LINK_TOL(w9);
ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Session No. %u, Broadcast Ack %u, Sequence Gap %u, Broadcast Gap After %u, Broadcast Gap To %u, Last Sent Packet No. %u, Next sent Packet No. %u, Transport Sequence %u, msg_count %u, Link Tolerance %u",
TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to,
last_sent_frag, next_sent_frag, trans_seq, msg_cnt,
link_tol));
}
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
print_link_conf(netdissect_options *ndo, const struct link_conf_tipc_pkthdr *ap)
{
uint32_t w0, w1, w5;
u_int user;
u_int hsize;
u_int msize;
u_int mtype;
u_int node_sig;
u_int prev_node;
u_int dest_domain;
u_int ntwrk_id;
u_int media_id;
ND_TCHECK(ap->prev_node);
w0 = EXTRACT_BE_U_4(&ap->w0);
user = TIPC_USER(w0);
hsize = TIPC_HSIZE(w0);
msize = TIPC_MSIZE(w0);
w1 = EXTRACT_BE_U_4(&ap->w1);
mtype = TIPC_MTYPE(w1);
dest_domain = EXTRACT_BE_U_4(&ap->dest_domain);
prev_node = EXTRACT_BE_U_4(&ap->prev_node);
ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
TIPC_VER(w0),
TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain),
hsize*4, msize,
tok2str(tipcuser_values, "unknown", user),
tok2str(tipc_linkconf_mtype_values, "Unknown", mtype)));
if (ndo->ndo_vflag) {
ND_TCHECK(ap->w5);
node_sig = TIPC_NODE_SIG(w1);
ntwrk_id = EXTRACT_BE_U_4(&ap->ntwrk_id);
w5 = EXTRACT_BE_U_4(&ap->w5);
media_id = TIPC_MEDIA_ID(w5);
ND_PRINT((ndo, "\n\tNodeSignature %u, network_id %u, media_id %u",
node_sig, ntwrk_id, media_id));
}
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
void
tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_,
u_int caplen _U_)
{
const struct tipc_pkthdr *ap;
uint32_t w0;
u_int user;
ap = (const struct tipc_pkthdr *)bp;
ND_TCHECK(ap->w0);
w0 = EXTRACT_BE_U_4(&ap->w0);
user = TIPC_USER(w0);
switch (user)
{
case TIPC_USER_LOW_IMPORTANCE:
case TIPC_USER_MEDIUM_IMPORTANCE:
case TIPC_USER_HIGH_IMPORTANCE:
case TIPC_USER_CRITICAL_IMPORTANCE:
case TIPC_USER_NAME_DISTRIBUTOR:
case TIPC_USER_CONN_MANAGER:
print_payload(ndo, (const struct payload_tipc_pkthdr *)bp);
break;
case TIPC_USER_LINK_CONFIG:
print_link_conf(ndo, (const struct link_conf_tipc_pkthdr *)bp);
break;
case TIPC_USER_BCAST_PROTOCOL:
case TIPC_USER_MSG_BUNDLER:
case TIPC_USER_LINK_PROTOCOL:
case TIPC_USER_CHANGEOVER_PROTOCOL:
case TIPC_USER_MSG_FRAGMENTER:
print_internal(ndo, (const struct internal_tipc_pkthdr *)bp);
break;
}
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
/*
* Local Variables:
* c-style: bsd
* End:
*/
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