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-rw-r--r--AUTHORS3
-rw-r--r--epan/dissectors/Makefile.common1
-rw-r--r--epan/dissectors/packet-batadv.c1600
3 files changed, 1603 insertions, 1 deletions
diff --git a/AUTHORS b/AUTHORS
index c5e74135d7..515226c629 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -2818,8 +2818,9 @@ Shigeo Nakamura <naka_shigeo [AT] yahoo.co.jp> {
Xpress Transport Protocol dissector
}
-Sven Eckelmann <lazhur [AT] gmx.de> {
+Sven Eckelmann <sven.eckelmann [AT] gmx.de> {
B.A.T.M.A.N. dissector
+ B.A.T.M.A.N. Advanced dissector
}
Edward J. Paradise <pdice [AT] cisco.com> {
diff --git a/epan/dissectors/Makefile.common b/epan/dissectors/Makefile.common
index a372b037ea..7b41bab966 100644
--- a/epan/dissectors/Makefile.common
+++ b/epan/dissectors/Makefile.common
@@ -257,6 +257,7 @@ DISSECTOR_SRC = \
packet-bacnet.c \
packet-banana.c \
packet-bat.c \
+ packet-batadv.c \
packet-bctp.c \
packet-beep.c \
packet-ber.c \
diff --git a/epan/dissectors/packet-batadv.c b/epan/dissectors/packet-batadv.c
new file mode 100644
index 0000000000..2d250e13c5
--- /dev/null
+++ b/epan/dissectors/packet-batadv.c
@@ -0,0 +1,1600 @@
+/* packet-batadv.c
+ * Routines for B.A.T.M.A.N. Advanced dissection
+ * Copyright 2008-2009 Sven Eckelmann <sven.eckelmann@gmx.de>
+ *
+ * $Id$
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <epan/packet.h>
+#include <epan/prefs.h>
+#include <epan/tap.h>
+#include <epan/addr_resolv.h>
+
+/* Start content from packet-batadv.h */
+#define ETH_P_BATMAN 0x4305
+
+#define BATADV_PACKET 0x01
+#define BATADV_ICMP 0x02
+#define BATADV_UNICAST 0x03
+#define BATADV_BCAST 0x04
+#define BATADV_VIS 0x05
+
+#define ECHO_REPLY 0
+#define DESTINATION_UNREACHABLE 3
+#define ECHO_REQUEST 8
+#define TTL_EXCEEDED 11
+
+struct batman_packet_v5 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
+ guint8 ttl;
+ guint8 gwflags; /* flags related to gateway functions: gateway class */
+ guint8 tq;
+ guint16 seqno;
+ address orig;
+ address prev_sender;
+ guint8 num_hna;
+ guint8 pad;
+};
+#define BATMAN_PACKET_V5_SIZE 22
+
+struct batman_packet_v7 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
+ guint8 tq;
+ guint16 seqno;
+ address orig;
+ address prev_sender;
+ guint8 ttl;
+ guint8 num_hna;
+};
+#define BATMAN_PACKET_V7_SIZE 20
+
+struct batman_packet_v9 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
+ guint8 tq;
+ guint16 seqno;
+ address orig;
+ address prev_sender;
+ guint8 ttl;
+ guint8 num_hna;
+ guint8 gwflags;
+ guint8 pad;
+};
+#define BATMAN_PACKET_V9_SIZE 22
+
+struct icmp_packet_v6 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ guint8 msg_type; /* 0 = ECHO REPLY, 3 = DESTINATION_UNREACHABLE, 8 = ECHO_REQUEST, 11 = TTL exceeded */
+ address dst;
+ address orig;
+ guint8 ttl;
+ guint8 uid;
+ guint16 seqno;
+};
+#define ICMP_PACKET_V6_SIZE 19
+
+struct icmp_packet_v7 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ guint8 msg_type; /* 0 = ECHO REPLY, 3 = DESTINATION_UNREACHABLE, 8 = ECHO_REQUEST, 11 = TTL exceeded */
+ guint8 ttl;
+ address dst;
+ address orig;
+ guint16 seqno;
+ guint8 uid;
+};
+#define ICMP_PACKET_V7_SIZE 18
+
+struct unicast_packet_v6 {
+ guint8 packet_type;
+ guint8 version;
+ address dest;
+ guint8 ttl;
+};
+#define UNICAST_PACKET_V6_SIZE 9
+
+struct bcast_packet_v6 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ address orig;
+ guint16 seqno;
+};
+#define BCAST_PACKET_V6_SIZE 10
+
+struct vis_packet_v6 {
+ guint8 packet_type;
+ guint8 version; /* batman version field */
+ guint8 vis_type; /* which type of vis-participant sent this? */
+ guint8 seqno; /* sequence number */
+ guint8 entries; /* number of entries behind this struct */
+ guint8 ttl; /* TTL */
+ address vis_orig; /* originator that informs about its neighbours */
+ address target_orig; /* who should receive this packet */
+ address sender_orig; /* who sent or rebroadcasted this packet */
+};
+#define VIS_PACKET_V6_SIZE 24
+
+#define VIS_ENTRY_V6_SIZE 7
+#define VIS_ENTRY_V8_SIZE 13
+
+#define VIS_TYPE_SERVER_SYNC 0
+#define VIS_TYPE_CLIENT_UPDATE 1
+/* End content from packet-batadv.h */
+
+/* trees */
+static gint ett_batadv_batman = -1;
+static gint ett_batadv_batman_flags = -1;
+static gint ett_batadv_batman_gwflags = -1;
+static gint ett_batadv_batman_hna = -1;
+static gint ett_batadv_bcast = -1;
+static gint ett_batadv_icmp = -1;
+static gint ett_batadv_unicast = -1;
+static gint ett_batadv_vis = -1;
+static gint ett_batadv_vis_entry = -1;
+
+/* hfs */
+static int hf_batadv_packet_type = -1;
+
+static int hf_batadv_batman_version = -1;
+static int hf_batadv_batman_flags = -1;
+static int hf_batadv_batman_ttl = -1;
+static int hf_batadv_batman_gwflags = -1;
+static int hf_batadv_batman_tq = -1;
+static int hf_batadv_batman_seqno = -1;
+static int hf_batadv_batman_orig = -1;
+static int hf_batadv_batman_prev_sender = -1;
+static int hf_batadv_batman_num_hna = -1;
+static int hf_batadv_batman_pad = -1;
+static int hf_batadv_batman_hna = -1;
+
+static int hf_batadv_bcast_version = -1;
+static int hf_batadv_bcast_pad = -1;
+static int hf_batadv_bcast_orig = -1;
+static int hf_batadv_bcast_seqno = -1;
+
+static int hf_batadv_icmp_version = -1;
+static int hf_batadv_icmp_msg_type = -1;
+static int hf_batadv_icmp_dst = -1;
+static int hf_batadv_icmp_orig = -1;
+static int hf_batadv_icmp_ttl = -1;
+static int hf_batadv_icmp_uid = -1;
+static int hf_batadv_icmp_seqno = -1;
+
+static int hf_batadv_unicast_version = -1;
+static int hf_batadv_unicast_dst = -1;
+static int hf_batadv_unicast_ttl = -1;
+
+static int hf_batadv_vis_version = -1;
+static int hf_batadv_vis_type = -1;
+static int hf_batadv_vis_seqno = -1;
+static int hf_batadv_vis_entries = -1;
+static int hf_batadv_vis_ttl = -1;
+static int hf_batadv_vis_vis_orig = -1;
+static int hf_batadv_vis_target_orig = -1;
+static int hf_batadv_vis_sender_orig = -1;
+static int hf_batadv_vis_entry_src = -1;
+static int hf_batadv_vis_entry_dst = -1;
+static int hf_batadv_vis_entry_quality = -1;
+
+/* flags */
+static int hf_batadv_batman_flags_directlink = -1;
+static int hf_batadv_batman_flags_vis_server = -1;
+static int hf_batadv_batman_flags_primaries_first_hop = -1;
+
+static const value_string icmp_packettypenames[] = {
+ { ECHO_REPLY, "ECHO_REPLY" },
+ { DESTINATION_UNREACHABLE, "DESTINATION UNREACHABLE" },
+ { ECHO_REQUEST, "ECHO_REQUEST" },
+ { TTL_EXCEEDED, "TTL exceeded" },
+ { 0, NULL }
+};
+
+static const value_string vis_packettypenames[] = {
+ { VIS_TYPE_SERVER_SYNC, "SERVER_SYNC" },
+ { VIS_TYPE_CLIENT_UPDATE, "CLIENT_UPDATE" },
+ { 0, NULL }
+};
+
+
+/* forward declaration */
+void proto_register_batadv(void);
+void proto_reg_handoff_batadv(void);
+static void dissect_batman_plugin(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static dissector_handle_t batman_handle;
+
+/* supported packet dissectors */
+static void dissect_batadv_batman(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_batman_v5(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_batman_v7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_batman_v9(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+
+static void dissect_batadv_bcast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_bcast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+
+static void dissect_batadv_icmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_icmp_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_icmp_v7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+
+static void dissect_batadv_unicast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_unicast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+
+static void dissect_batadv_vis(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_batadv_vis_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+
+static void dissect_batadv_hna(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_vis_entry_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+static void dissect_vis_entry_v8(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
+
+/* other dissectors */
+static dissector_handle_t data_handle = NULL;
+static dissector_handle_t eth_handle = NULL;
+
+static int proto_batadv_plugin = -1;
+
+/* tap */
+static int batadv_tap = -1;
+static int batadv_follow_tap = -1;
+
+static unsigned int batadv_ethertype = ETH_P_BATMAN;
+
+static void dissect_batman_plugin(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 type;
+
+ type = tvb_get_guint8(tvb, 0);
+
+ switch (type) {
+ case BATADV_PACKET:
+ dissect_batadv_batman(tvb, pinfo, tree);
+ break;
+ case BATADV_ICMP:
+ dissect_batadv_icmp(tvb, pinfo, tree);
+ break;
+ case BATADV_UNICAST:
+ dissect_batadv_unicast(tvb, pinfo, tree);
+ break;
+ case BATADV_BCAST:
+ dissect_batadv_bcast(tvb, pinfo, tree);
+ break;
+ case BATADV_VIS:
+ dissect_batadv_vis(tvb, pinfo, tree);
+ break;
+ default:
+ /* dunno */
+ {
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+
+ length_remaining = tvb_length_remaining(tvb, 1);
+ next_tvb = tvb_new_subset(tvb, 0, length_remaining, -1);
+ call_dissector(data_handle, next_tvb, pinfo, tree);
+ break;
+ }
+ }
+}
+
+static void dissect_batadv_batman(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 version;
+
+ /* set protocol name */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_BATMAN");
+
+ version = tvb_get_guint8(tvb, 1);
+ switch (version) {
+ case 5:
+ case 6:
+ dissect_batadv_batman_v5(tvb, pinfo, tree);
+ break;
+ case 7:
+ case 8:
+ dissect_batadv_batman_v7(tvb, pinfo, tree);
+ break;
+ case 9:
+ dissect_batadv_batman_v9(tvb, pinfo, tree);
+ break;
+ default:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
+ }
+ call_dissector(data_handle, tvb, pinfo, tree);
+ break;
+ }
+}
+
+static void dissect_batadv_gwflags(tvbuff_t *tvb, guint8 gwflags, int offset, proto_item *tgw)
+{
+ proto_tree *gwflags_tree;
+ guint8 s = (gwflags & 0x80) >> 7;
+ guint8 downbits = (gwflags & 0x7C) >> 3;
+ guint8 upbits = (gwflags & 0x07);
+ guint down, up;
+
+ if (gwflags == 0) {
+ down = 0;
+ up = 0;
+ } else {
+ down = 32 * (s + 2) * (1 << downbits);
+ up = ((upbits + 1) * down) / 8;
+ }
+
+ gwflags_tree = proto_item_add_subtree(tgw, ett_batadv_batman_gwflags);
+ proto_tree_add_text(gwflags_tree, tvb, offset, 1, "Download Speed: %dkbit", down);
+ proto_tree_add_text(gwflags_tree, tvb, offset, 1, "Upload Speed: %dkbit", up);
+
+}
+
+static void dissect_batadv_batman_v5(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 type;
+ struct batman_packet_v5 *batman_packeth;
+ const guint8 *prev_sender_addr, *orig_addr;
+ gint i;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ batman_packeth = ep_alloc(sizeof(struct batman_packet_v5));
+
+ type = tvb_get_guint8(tvb, 0);
+ batman_packeth->version = tvb_get_guint8(tvb, 1);
+
+ /* don't interpret padding as B.A.T.M.A.N. advanced packet */
+ if (batman_packeth->version == 0 || type != BATADV_PACKET) {
+ return;
+ }
+
+ batman_packeth->flags = tvb_get_guint8(tvb, 2);
+ batman_packeth->ttl = tvb_get_guint8(tvb, 3);
+ batman_packeth->gwflags = tvb_get_guint8(tvb, 4);
+ batman_packeth->tq = tvb_get_guint8(tvb, 5);
+ batman_packeth->seqno = tvb_get_ntohs(tvb, 6);
+ orig_addr = tvb_get_ptr(tvb, 8, 6);
+ SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
+ prev_sender_addr = tvb_get_ptr(tvb, 14, 6);
+ SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
+ batman_packeth->num_hna = tvb_get_guint8(tvb, 20);
+ batman_packeth->pad = tvb_get_guint8(tvb, 21);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Seq=%u",
+ batman_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL, *tf, *tgw;
+ proto_tree *batadv_batman_tree = NULL, *flag_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, BATMAN_PACKET_V5_SIZE,
+ "B.A.T.M.A.N., Orig: %s (%s)",
+ get_ether_name(orig_addr), ether_to_str(orig_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, BATMAN_PACKET_V5_SIZE, FALSE);
+ }
+ batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
+ "Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
+ /* <flags> */
+ flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
+ /* </flags> */
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ tgw = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_gwflags, tvb, offset, 1, FALSE);
+ dissect_batadv_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ /* Hidden: proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_pad, tvb, offset, 1, FALSE); */
+ offset += 1;
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, batman_packeth);
+
+ for (i = 0; i < batman_packeth->num_hna; i++) {
+ next_tvb = tvb_new_subset(tvb, offset, 6, 6);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
+ offset += 6;
+ }
+ }
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+ if (length_remaining >= BATMAN_PACKET_V5_SIZE) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ dissect_batadv_batman_v5(next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_batman_v7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 type;
+ struct batman_packet_v7 *batman_packeth;
+ const guint8 *prev_sender_addr, *orig_addr;
+ gint i;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ batman_packeth = ep_alloc(sizeof(struct batman_packet_v7));
+
+ type = tvb_get_guint8(tvb, 0);
+ batman_packeth->version = tvb_get_guint8(tvb, 1);
+
+ /* don't interpret padding as B.A.T.M.A.N. advanced packet */
+ if (batman_packeth->version == 0 || type != BATADV_PACKET) {
+ return;
+ }
+
+ batman_packeth->flags = tvb_get_guint8(tvb, 2);
+ batman_packeth->tq = tvb_get_guint8(tvb, 3);
+ batman_packeth->seqno = tvb_get_ntohs(tvb, 4);
+ orig_addr = tvb_get_ptr(tvb, 6, 6);
+ SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
+ prev_sender_addr = tvb_get_ptr(tvb, 12, 6);
+ SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
+ batman_packeth->ttl = tvb_get_guint8(tvb, 18);
+ batman_packeth->num_hna = tvb_get_guint8(tvb, 19);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Seq=%u",
+ batman_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL, *tf;
+ proto_tree *batadv_batman_tree = NULL, *flag_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, BATMAN_PACKET_V7_SIZE,
+ "B.A.T.M.A.N., Orig: %s (%s)",
+ get_ether_name(orig_addr), ether_to_str(orig_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, BATMAN_PACKET_V7_SIZE, FALSE);
+ }
+ batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
+ "Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
+ /* <flags> */
+ flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
+ /* </flags> */
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, batman_packeth);
+
+ for (i = 0; i < batman_packeth->num_hna; i++) {
+ next_tvb = tvb_new_subset(tvb, offset, 6, 6);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
+ offset += 6;
+ }
+ }
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+ if (length_remaining >= BATMAN_PACKET_V7_SIZE) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ dissect_batadv_batman_v7(next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_batman_v9(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 type;
+ struct batman_packet_v9 *batman_packeth;
+ const guint8 *prev_sender_addr, *orig_addr;
+ gint i;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ batman_packeth = ep_alloc(sizeof(struct batman_packet_v9));
+
+ type = tvb_get_guint8(tvb, 0);
+ batman_packeth->version = tvb_get_guint8(tvb, 1);
+
+ /* don't interpret padding as B.A.T.M.A.N. advanced packet */
+ if (batman_packeth->version == 0 || type != BATADV_PACKET) {
+ return;
+ }
+
+ batman_packeth->flags = tvb_get_guint8(tvb, 2);
+ batman_packeth->tq = tvb_get_guint8(tvb, 3);
+ batman_packeth->seqno = tvb_get_ntohs(tvb, 4);
+ orig_addr = tvb_get_ptr(tvb, 6, 6);
+ SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
+ prev_sender_addr = tvb_get_ptr(tvb, 12, 6);
+ SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
+ batman_packeth->ttl = tvb_get_guint8(tvb, 18);
+ batman_packeth->num_hna = tvb_get_guint8(tvb, 19);
+ batman_packeth->gwflags = tvb_get_guint8(tvb, 20);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Seq=%u",
+ batman_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL, *tf, *tgw;
+ proto_tree *batadv_batman_tree = NULL, *flag_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, BATMAN_PACKET_V9_SIZE,
+ "B.A.T.M.A.N., Orig: %s (%s)",
+ get_ether_name(orig_addr), ether_to_str(orig_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, BATMAN_PACKET_V9_SIZE, FALSE);
+ }
+ batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
+ "Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
+ /* <flags> */
+ flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
+ proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_primaries_first_hop, tvb, offset, 1, batman_packeth->flags);
+ /* </flags> */
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ tgw = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_gwflags, tvb, offset, 1, FALSE);
+ dissect_batadv_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
+ offset += 1;
+
+ /* Hidden: proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_pad, tvb, offset, 1, FALSE); */
+ offset += 1;
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, batman_packeth);
+
+ for (i = 0; i < batman_packeth->num_hna; i++) {
+ next_tvb = tvb_new_subset(tvb, offset, 6, 6);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
+ offset += 6;
+ }
+ }
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+ if (length_remaining >= BATMAN_PACKET_V9_SIZE) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ dissect_batadv_batman_v9(next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_hna(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
+{
+ const guint8 *hna;
+
+ hna = tvb_get_ptr(tvb, 0, 6);
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_batman_hna_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, 6,
+ "B.A.T.M.A.N. HNA: %s (%s)",
+ get_ether_name(hna), ether_to_str(hna));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, 6, FALSE);
+ }
+ batadv_batman_hna_tree = proto_item_add_subtree(ti, ett_batadv_batman_hna);
+
+ proto_tree_add_ether(batadv_batman_hna_tree, hf_batadv_batman_hna, tvb, 0, 6, hna);
+ }
+}
+
+static void dissect_batadv_bcast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 version;
+
+ /* set protocol name */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_BCAST");
+
+ version = tvb_get_guint8(tvb, 1);
+ switch (version) {
+ case 6:
+ case 7:
+ case 8:
+ case 9:
+ dissect_batadv_bcast_v6(tvb, pinfo, tree);
+ break;
+ default:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
+ }
+ call_dissector(data_handle, tvb, pinfo, tree);
+ break;
+ }
+}
+
+static void dissect_batadv_bcast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ struct bcast_packet_v6 *bcast_packeth;
+ const guint8 *orig_addr;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ bcast_packeth = ep_alloc(sizeof(struct bcast_packet_v6));
+
+ bcast_packeth->version = tvb_get_ntohs(tvb, 1);
+ orig_addr = tvb_get_ptr(tvb, 2, 6);
+ SET_ADDRESS(&bcast_packeth->orig, AT_ETHER, 6, orig_addr);
+ bcast_packeth->seqno = tvb_get_ntohs(tvb, 8);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Seq=%u",
+ bcast_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_bcast_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, BCAST_PACKET_V6_SIZE,
+ "B.A.T.M.A.N. Bcast, Orig: %s (%s)",
+ get_ether_name(orig_addr), ether_to_str(orig_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, BCAST_PACKET_V6_SIZE, FALSE);
+ }
+ batadv_bcast_tree = proto_item_add_subtree(ti, ett_batadv_bcast);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_bcast_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_BCAST,
+ "Packet Type: %s (%u)", "BATADV_BCAST", BATADV_BCAST);
+ offset += 1;
+
+ proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_ether(batadv_bcast_tree, hf_batadv_bcast_orig, tvb, offset, 6, orig_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_seqno, tvb, offset, 2, FALSE);
+ offset += 2;
+ }
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, bcast_packeth);
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+
+ if (length_remaining != 0) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ call_dissector(eth_handle, next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_icmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 version;
+
+ /* set protocol name */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_ICMP");
+
+ version = tvb_get_guint8(tvb, 1);
+ switch (version) {
+ case 6:
+ dissect_batadv_icmp_v6(tvb, pinfo, tree);
+ break;
+ case 7:
+ case 8:
+ case 9:
+ dissect_batadv_icmp_v7(tvb, pinfo, tree);
+ break;
+ default:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
+ }
+ call_dissector(data_handle, tvb, pinfo, tree);
+ break;
+ }
+}
+
+static void dissect_batadv_icmp_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ struct icmp_packet_v6 *icmp_packeth;
+ const guint8 *dst_addr, *orig_addr;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ icmp_packeth = ep_alloc(sizeof(struct icmp_packet_v6));
+
+ icmp_packeth->version = tvb_get_guint8(tvb, 1);
+ icmp_packeth->msg_type = tvb_get_guint8(tvb, 2);
+ dst_addr = tvb_get_ptr(tvb, 3, 6);
+ SET_ADDRESS(&icmp_packeth->dst, AT_ETHER, 6, dst_addr);
+ orig_addr = tvb_get_ptr(tvb, 9, 6);
+ SET_ADDRESS(&icmp_packeth->orig, AT_ETHER, 6, orig_addr);
+ icmp_packeth->ttl = tvb_get_guint8(tvb, 15);
+ icmp_packeth->uid = tvb_get_guint8(tvb, 16);
+ icmp_packeth->seqno = tvb_get_ntohs(tvb, 17);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
+ val_to_str(icmp_packeth->msg_type, icmp_packettypenames, "Unknown (0x%02x)"),
+ icmp_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_icmp_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V6_SIZE,
+ "B.A.T.M.A.N. ICMP, Orig: %s (%s), Dst: %s (%s)",
+ get_ether_name(orig_addr), ether_to_str(orig_addr), get_ether_name(dst_addr), ether_to_str(dst_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V6_SIZE, FALSE);
+ }
+ batadv_icmp_tree = proto_item_add_subtree(ti, ett_batadv_icmp);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_icmp_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_ICMP,
+ "Packet Type: %s (%u)", "BATADV_ICMP", BATADV_ICMP);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_msg_type, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_dst, tvb, offset, 6, dst_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_orig, tvb, offset, 6, orig_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_uid, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_seqno, tvb, offset, 1, FALSE);
+ offset += 1;
+ }
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
+
+ SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, icmp_packeth);
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+
+ if (length_remaining != 0) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ call_dissector(data_handle, next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_icmp_v7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ struct icmp_packet_v7 *icmp_packeth;
+ const guint8 *dst_addr, *orig_addr;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ icmp_packeth = ep_alloc(sizeof(struct icmp_packet_v7));
+
+ icmp_packeth->version = tvb_get_guint8(tvb, 1);
+ icmp_packeth->msg_type = tvb_get_guint8(tvb, 2);
+ icmp_packeth->ttl = tvb_get_guint8(tvb, 3);
+ dst_addr = tvb_get_ptr(tvb, 4, 6);
+ SET_ADDRESS(&icmp_packeth->dst, AT_ETHER, 6, dst_addr);
+ orig_addr = tvb_get_ptr(tvb, 10, 6);
+ SET_ADDRESS(&icmp_packeth->orig, AT_ETHER, 6, orig_addr);
+ icmp_packeth->seqno = tvb_get_ntohs(tvb, 16);
+ icmp_packeth->uid = tvb_get_guint8(tvb, 17);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
+ val_to_str(icmp_packeth->msg_type, icmp_packettypenames, "Unknown (0x%02x)"),
+ icmp_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_icmp_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V7_SIZE,
+ "B.A.T.M.A.N. ICMP, Orig: %s (%s), Dst: %s (%s)",
+ get_ether_name(orig_addr), ether_to_str(orig_addr), get_ether_name(dst_addr), ether_to_str(dst_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V7_SIZE, FALSE);
+ }
+ batadv_icmp_tree = proto_item_add_subtree(ti, ett_batadv_icmp);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_icmp_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_ICMP,
+ "Packet Type: %s (%u)", "BATADV_ICMP", BATADV_ICMP);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_msg_type, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_dst, tvb, offset, 6, dst_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_orig, tvb, offset, 6, orig_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_seqno, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_uid, tvb, offset, 1, FALSE);
+ offset += 1;
+ }
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
+
+ SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, orig_addr);
+ SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, icmp_packeth);
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+
+ if (length_remaining != 0) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ call_dissector(data_handle, next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_unicast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 version;
+
+ /* set protocol name */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_UNICAST");
+
+ version = tvb_get_guint8(tvb, 1);
+ switch (version) {
+ case 6:
+ case 7:
+ case 8:
+ case 9:
+ dissect_batadv_unicast_v6(tvb, pinfo, tree);
+ break;
+ default:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
+ }
+ call_dissector(data_handle, tvb, pinfo, tree);
+ break;
+ }
+}
+
+static void dissect_batadv_unicast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ struct unicast_packet_v6 *unicast_packeth;
+ const guint8 *dest_addr;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining;
+ int offset = 0;
+
+ unicast_packeth = ep_alloc(sizeof(struct unicast_packet_v6));
+
+ unicast_packeth->version = tvb_get_guint8(tvb, 1);
+ dest_addr = tvb_get_ptr(tvb, 2, 6);
+ SET_ADDRESS(&unicast_packeth->dest, AT_ETHER, 6, dest_addr);
+ unicast_packeth->ttl = tvb_get_guint8(tvb, 8);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_unicast_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, UNICAST_PACKET_V6_SIZE,
+ "B.A.T.M.A.N. Unicast, Dst: %s (%s)",
+ get_ether_name(dest_addr), ether_to_str(dest_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, UNICAST_PACKET_V6_SIZE, FALSE);
+ }
+ batadv_unicast_tree = proto_item_add_subtree(ti, ett_batadv_unicast);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_unicast_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_UNICAST,
+ "Packet Type: %s (%u)", "BATADV_UNICAST", BATADV_UNICAST);
+ offset += 1;
+
+ proto_tree_add_item(batadv_unicast_tree, hf_batadv_unicast_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_ether(batadv_unicast_tree, hf_batadv_unicast_dst, tvb, offset, 6, dest_addr);
+ offset += 6;
+
+ proto_tree_add_item(batadv_unicast_tree, hf_batadv_unicast_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+ }
+
+ SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, dest_addr);
+ SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, dest_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, unicast_packeth);
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+
+ if (length_remaining != 0) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ call_dissector(eth_handle, next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_batadv_vis(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 version;
+
+ /* set protocol name */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_VIS");
+
+ version = tvb_get_guint8(tvb, 1);
+ switch (version) {
+ case 6:
+ case 7:
+ case 8:
+ case 9:
+ dissect_batadv_vis_v6(tvb, pinfo, tree);
+ break;
+ default:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
+ }
+ call_dissector(data_handle, tvb, pinfo, tree);
+ break;
+ }
+}
+
+static void dissect_batadv_vis_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ struct vis_packet_v6 *vis_packeth;
+ const guint8 *vis_orig_addr, *target_orig_addr, *sender_orig_addr;
+ proto_tree *batadv_vis_tree = NULL;
+
+ tvbuff_t *next_tvb;
+ guint length_remaining, entry_size;
+ int offset = 0, i;
+
+ vis_packeth = ep_alloc(sizeof(struct vis_packet_v6));
+
+ vis_packeth->version = tvb_get_guint8(tvb, 1);
+ vis_packeth->vis_type = tvb_get_guint8(tvb, 2);
+ vis_packeth->seqno = tvb_get_guint8(tvb, 3);
+ vis_packeth->entries = tvb_get_guint8(tvb, 4);
+ vis_packeth->ttl = tvb_get_guint8(tvb, 5);
+
+ vis_orig_addr = tvb_get_ptr(tvb, 6, 6);
+ SET_ADDRESS(&vis_packeth->vis_orig, AT_ETHER, 6, vis_orig_addr);
+ target_orig_addr = tvb_get_ptr(tvb, 12, 6);
+ SET_ADDRESS(&vis_packeth->target_orig, AT_ETHER, 6, target_orig_addr);
+ sender_orig_addr = tvb_get_ptr(tvb, 18, 6);
+ SET_ADDRESS(&vis_packeth->sender_orig, AT_ETHER, 6, sender_orig_addr);
+
+ /* Set info column */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
+ val_to_str(vis_packeth->vis_type, vis_packettypenames, "Unknown (0x%02x)"),
+ vis_packeth->seqno);
+ }
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_PACKET_V6_SIZE,
+ "B.A.T.M.A.N. Vis, Orig: %s (%s)",
+ get_ether_name(vis_orig_addr), ether_to_str(vis_orig_addr));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_PACKET_V6_SIZE, FALSE);
+ }
+ batadv_vis_tree = proto_item_add_subtree(ti, ett_batadv_vis);
+
+ /* items */
+ proto_tree_add_uint_format(batadv_vis_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_VIS,
+ "Packet Type: %s (%u)", "BATADV_VIS", BATADV_VIS);
+ offset += 1;
+
+ proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_version, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_type, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_seqno, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_entries, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_ttl, tvb, offset, 1, FALSE);
+ offset += 1;
+
+ proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_vis_orig, tvb, offset, 6, vis_orig_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_target_orig, tvb, offset, 6, target_orig_addr);
+ offset += 6;
+
+ proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_sender_orig, tvb, offset, 6, sender_orig_addr);
+ offset += 6;
+ }
+
+ SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, sender_orig_addr);
+ SET_ADDRESS(&pinfo->src, AT_ETHER, 6, vis_orig_addr);
+
+ SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, target_orig_addr);
+ SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, target_orig_addr);
+
+ tap_queue_packet(batadv_tap, pinfo, vis_packeth);
+
+ switch (vis_packeth->version) {
+ case 6:
+ case 7:
+ entry_size = VIS_ENTRY_V6_SIZE;
+ break;
+ default:
+ case 8:
+ case 9:
+ entry_size = VIS_ENTRY_V8_SIZE;
+ break;
+ }
+
+ for (i = 0; i < vis_packeth->entries; i++) {
+ next_tvb = tvb_new_subset(tvb, offset, entry_size, entry_size);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ if (batadv_vis_tree != NULL) {
+ switch (vis_packeth->version) {
+ case 6:
+ case 7:
+ dissect_vis_entry_v6(next_tvb, pinfo, batadv_vis_tree);
+ break;
+ default:
+ case 8:
+ case 9:
+ dissect_vis_entry_v8(next_tvb, pinfo, batadv_vis_tree);
+ break;
+ }
+ }
+
+ offset += entry_size;
+ }
+
+ length_remaining = tvb_length_remaining(tvb, offset);
+ if (length_remaining != 0) {
+ next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
+
+ if (have_tap_listener(batadv_follow_tap)) {
+ tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
+ }
+
+ call_dissector(data_handle, next_tvb, pinfo, tree);
+ }
+}
+
+static void dissect_vis_entry_v6(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
+{
+ const guint8 *dst;
+
+ dst = tvb_get_ptr(tvb, 0, 6);
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_vis_entry_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V6_SIZE,
+ "VIS Entry: %s (%s)",
+ get_ether_name(dst), ether_to_str(dst));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V6_SIZE, FALSE);
+ }
+ batadv_vis_entry_tree = proto_item_add_subtree(ti, ett_batadv_vis_entry);
+
+ proto_tree_add_ether(batadv_vis_entry_tree, hf_batadv_vis_entry_dst, tvb, 0, 6, dst);
+ proto_tree_add_item(batadv_vis_entry_tree, hf_batadv_vis_entry_quality, tvb, 6, 1, FALSE);
+ }
+}
+
+static void dissect_vis_entry_v8(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
+{
+ const guint8 *dst, *src;
+
+ src = tvb_get_ptr(tvb, 0, 6);
+ dst = tvb_get_ptr(tvb, 6, 6);
+
+ /* Set tree info */
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *batadv_vis_entry_tree = NULL;
+
+ if (PTREE_DATA(tree)->visible) {
+ ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V8_SIZE,
+ "VIS Entry: %s (%s)",
+ get_ether_name(dst), ether_to_str(dst));
+ } else {
+ ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V8_SIZE, FALSE);
+ }
+ batadv_vis_entry_tree = proto_item_add_subtree(ti, ett_batadv_vis_entry);
+
+ proto_tree_add_ether(batadv_vis_entry_tree, hf_batadv_vis_entry_src, tvb, 0, 6, src);
+ proto_tree_add_ether(batadv_vis_entry_tree, hf_batadv_vis_entry_dst, tvb, 6, 6, dst);
+ proto_tree_add_item(batadv_vis_entry_tree, hf_batadv_vis_entry_quality, tvb, 12, 1, FALSE);
+ }
+}
+
+void proto_register_batadv(void)
+{
+ module_t *batadv_module;
+
+ static hf_register_info hf[] = {
+ { &hf_batadv_packet_type,
+ { "Packet Type", "batadv.batman.packet_type",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_version,
+ { "Version", "batadv.batman.version",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_flags,
+ { "Flags", "batadv.batman.flags",
+ FT_UINT8, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_ttl,
+ { "Time to Live", "batadv.batman.ttl",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_gwflags,
+ { "Gateway Flags", "batadv.batman.gwflags",
+ FT_UINT8, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_tq,
+ { "Transmission Quality", "batadv.batman.tq",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_seqno,
+ { "Sequence number", "batadv.batman.seq",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_orig,
+ { "Originator", "batadv.batman.orig",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_prev_sender,
+ { "Received from", "batadv.batman.prev_sender",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_num_hna,
+ { "Number of HNAs", "batadv.batman.num_hna",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_pad,
+ { "Padding", "batadv.batman.pad",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_flags_directlink,
+ { "DirectLink", "batadv.batman.flags.directlink",
+ FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_flags_vis_server,
+ { "VIS_SERVER", "batadv.batman.flags.vis_server",
+ FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_flags_primaries_first_hop,
+ { "PRIMARIES_FIRST_HOP", "batadv.batman.flags.primaries_first_hop",
+ FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x10,
+ NULL, HFILL }
+ },
+ { &hf_batadv_batman_hna,
+ { "Host Network Announcement", "batadv.batman.hna",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_bcast_version,
+ { "Version", "batadv.bcast.version",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_bcast_pad,
+ { "Padding", "batadv.bcast.pad",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_bcast_orig,
+ { "Originator", "batadv.bcast.orig",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_bcast_seqno,
+ { "Sequence number", "batadv.bcast.seq",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_icmp_version,
+ { "Version", "batadv.icmp.version",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_icmp_msg_type,
+ { "Message Type", "batadv.icmp.msg_type",
+ FT_UINT8, BASE_DEC, VALS(icmp_packettypenames), 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_icmp_dst,
+ { "Destination", "batadv.icmp.dst",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_icmp_orig,
+ { "Originator", "batadv.icmp.orig",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_icmp_ttl,
+ { "Time to Live", "batadv.icmp.ttl",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ { &hf_batadv_icmp_uid,
+ { "UID", "batadv.icmp.uid",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ { &hf_batadv_icmp_seqno,
+ { "Sequence number", "batadv.icmp.seq",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ { &hf_batadv_unicast_version,
+ { "Version", "batadv.unicast.version",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_unicast_dst,
+ { "Destination", "batadv.unicast.dst",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_unicast_ttl,
+ { "Time to Live", "batadv.unicast.ttl",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_version,
+ { "Version", "batadv.vis.version",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_type,
+ { "Type", "batadv.vis.type",
+ FT_UINT8, BASE_DEC, VALS(vis_packettypenames), 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_seqno,
+ { "Sequence number", "batadv.vis.seq",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ { &hf_batadv_vis_entries,
+ { "Entries", "batadv.vis.entries",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ "Number of entries", HFILL}
+ },
+ { &hf_batadv_vis_ttl,
+ { "Time to Live", "batadv.vis.ttl",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ { &hf_batadv_vis_vis_orig,
+ { "Originator", "batadv.vis.vis_orig",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_target_orig,
+ { "Target Originator", "batadv.vis.target_orig",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_sender_orig,
+ { "Forwarding Originator", "batadv.vis.sender_orig",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_entry_src,
+ { "Source", "hf_batadv_vis_entry.src",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_entry_dst,
+ { "Destination", "hf_batadv_vis_entry.dst",
+ FT_ETHER, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_batadv_vis_entry_quality,
+ { "Quality", "batadv.vis.quality",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }
+ }
+ };
+
+ /* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_batadv_batman,
+ &ett_batadv_batman_flags,
+ &ett_batadv_batman_hna,
+ &ett_batadv_batman_gwflags,
+ &ett_batadv_bcast,
+ &ett_batadv_icmp,
+ &ett_batadv_unicast,
+ &ett_batadv_vis,
+ &ett_batadv_vis_entry
+ };
+
+ proto_batadv_plugin = proto_register_protocol(
+ "B.A.T.M.A.N. Advanced Protocol",
+ "BATADV", /* short name */
+ "batadv" /* abbrev */
+ );
+
+ batadv_module = prefs_register_protocol(proto_batadv_plugin,
+ proto_reg_handoff_batadv);
+
+ prefs_register_uint_preference(batadv_module, "batmanadv.ethertype",
+ "Ethertype",
+ "Ethertype used to indicate B.A.T.M.A.N. packet.",
+ 16, &batadv_ethertype);
+
+ proto_register_subtree_array(ett, array_length(ett));
+ proto_register_field_array(proto_batadv_plugin, hf, array_length(hf));
+}
+
+void proto_reg_handoff_batadv(void)
+{
+ static gboolean inited = FALSE;
+ static unsigned int old_batadv_ethertype;
+
+ if (!inited) {
+ batman_handle = create_dissector_handle(dissect_batman_plugin, proto_batadv_plugin);
+
+ data_handle = find_dissector("data");
+ eth_handle = find_dissector("eth");
+
+ batadv_tap = register_tap("batman");
+ batadv_follow_tap = register_tap("batman_follow");
+
+ inited = TRUE;
+ } else {
+ dissector_delete("ethertype", old_batadv_ethertype, batman_handle);
+ }
+
+ old_batadv_ethertype = batadv_ethertype;
+ dissector_add("ethertype", batadv_ethertype, batman_handle);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 13:59:30 +0000