diff options
Diffstat (limited to '')
| -rw-r--r-- | print-tipc.c | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/print-tipc.c b/print-tipc.c new file mode 100644 index 0000000..54179a4 --- /dev/null +++ b/print-tipc.c @@ -0,0 +1,354 @@ +/* + * 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; + + } +} |