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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:
+ * https://web.archive.org/web/20150302152944/http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html
+ * https://web.archive.org/web/20161025110514/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"
+
+
+#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 {
+ nd_uint32_t w0;
+ nd_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) & 0x1FFFF)
+#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 {
+ nd_uint32_t w0;
+ nd_uint32_t w1;
+ nd_uint32_t w2;
+ nd_uint32_t prev_node;
+ nd_uint32_t orig_port;
+ nd_uint32_t dest_port;
+ nd_uint32_t orig_node;
+ nd_uint32_t dest_node;
+ nd_uint32_t name_type;
+ nd_uint32_t w9;
+ nd_uint32_t wA;
+};
+
+struct internal_tipc_pkthdr {
+ nd_uint32_t w0;
+ nd_uint32_t w1;
+ nd_uint32_t w2;
+ nd_uint32_t prev_node;
+ nd_uint32_t w4;
+ nd_uint32_t w5;
+ nd_uint32_t orig_node;
+ nd_uint32_t dest_node;
+ nd_uint32_t trans_seq;
+ nd_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 {
+ nd_uint32_t w0;
+ nd_uint32_t w1;
+ nd_uint32_t dest_domain;
+ nd_uint32_t prev_node;
+ nd_uint32_t ntwrk_id;
+ nd_uint32_t w5;
+ nd_byte 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;
+
+ w0 = GET_BE_U_4(ap->w0);
+ user = TIPC_USER(w0);
+ hsize = TIPC_HSIZE(w0);
+ msize = TIPC_MSIZE(w0);
+ w1 = GET_BE_U_4(ap->w1);
+ mtype = TIPC_MTYPE(w1);
+ prev_node = GET_BE_U_4(ap->prev_node);
+ orig_port = GET_BE_U_4(ap->orig_port);
+ dest_port = GET_BE_U_4(ap->dest_port);
+ if (hsize <= 6) {
+ ND_PRINT("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 {
+ orig_node = GET_BE_U_4(ap->orig_node);
+ dest_node = GET_BE_U_4(ap->dest_node);
+ ND_PRINT("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 = GET_BE_U_4(ap->w2);
+ link_ack = TIPC_LINK_ACK(w2);
+ link_seq = TIPC_LINK_SEQ(w2);
+ ND_PRINT("\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);
+ }
+ }
+}
+
+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;
+
+ w0 = GET_BE_U_4(ap->w0);
+ user = TIPC_USER(w0);
+ hsize = TIPC_HSIZE(w0);
+ msize = TIPC_MSIZE(w0);
+ w1 = GET_BE_U_4(ap->w1);
+ mtype = TIPC_MTYPE(w1);
+ orig_node = GET_BE_U_4(ap->orig_node);
+ dest_node = GET_BE_U_4(ap->dest_node);
+ ND_PRINT("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) {
+ seq_gap = TIPC_SEQ_GAP(w1);
+ broadcast_ack = TIPC_BROADCAST_ACK(w1);
+ w2 = GET_BE_U_4(ap->w2);
+ bc_gap_after = TIPC_BC_GAP_AFTER(w2);
+ bc_gap_to = TIPC_BC_GAP_TO(w2);
+ prev_node = GET_BE_U_4(ap->prev_node);
+ w4 = GET_BE_U_4(ap->w4);
+ last_sent_frag = TIPC_LAST_SENT_FRAG(w4);
+ next_sent_frag = TIPC_NEXT_SENT_FRAG(w4);
+ w5 = GET_BE_U_4(ap->w5);
+ sess_no = TIPC_SESS_NO(w5);
+ trans_seq = GET_BE_U_4(ap->trans_seq);
+ w9 = GET_BE_U_4(ap->w9);
+ msg_cnt = TIPC_MSG_CNT(w9);
+ link_tol = TIPC_LINK_TOL(w9);
+ ND_PRINT("\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);
+ }
+}
+
+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;
+
+ w0 = GET_BE_U_4(ap->w0);
+ user = TIPC_USER(w0);
+ hsize = TIPC_HSIZE(w0);
+ msize = TIPC_MSIZE(w0);
+ w1 = GET_BE_U_4(ap->w1);
+ mtype = TIPC_MTYPE(w1);
+ dest_domain = GET_BE_U_4(ap->dest_domain);
+ prev_node = GET_BE_U_4(ap->prev_node);
+
+ ND_PRINT("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) {
+ node_sig = TIPC_NODE_SIG(w1);
+ ntwrk_id = GET_BE_U_4(ap->ntwrk_id);
+ w5 = GET_BE_U_4(ap->w5);
+ media_id = TIPC_MEDIA_ID(w5);
+ ND_PRINT("\n\tNodeSignature %u, network_id %u, media_id %u",
+ node_sig, ntwrk_id, media_id);
+ }
+}
+
+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;
+
+ ndo->ndo_protocol = "tipc";
+ ap = (const struct tipc_pkthdr *)bp;
+ w0 = GET_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;
+
+ }
+}