static void dissect_bat_batman_v5(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
struct batman_packet_v5 *batman_packeth;
const guint8 *old_orig_addr, *orig_addr;
guint32 old_orig, orig;
gint i;
tvbuff_t *next_tvb;
guint length_remaining;
int offset = 0;
batman_packeth = ep_alloc(sizeof(struct batman_packet_v5));
batman_packeth->version = tvb_get_guint8(tvb, 0);
batman_packeth->flags = tvb_get_guint8(tvb, 1);
batman_packeth->ttl = tvb_get_guint8(tvb, 2);
batman_packeth->gwflags = tvb_get_guint8(tvb, 3);
batman_packeth->seqno = tvb_get_ntohs(tvb, 4);
batman_packeth->gwport = tvb_get_ntohs(tvb, 6);
orig_addr = tvb_get_ptr(tvb, 8, 4);
orig = tvb_get_ipv4(tvb, 8);
SET_ADDRESS(&batman_packeth->orig, AT_IPv4, 4, orig_addr);
old_orig_addr = tvb_get_ptr(tvb, 12, 4);
old_orig = tvb_get_ipv4(tvb, 12);
SET_ADDRESS(&batman_packeth->old_orig, AT_IPv4, 4, old_orig_addr);
batman_packeth->tq = tvb_get_guint8(tvb, 16);
batman_packeth->hna_len = tvb_get_guint8(tvb, 17);
/* Set info column */
if (check_col(pinfo->cinfo, COL_INFO))
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
/* Set tree info */
if (tree) {
proto_item *ti = NULL, *tf, *tgw;
proto_tree *bat_batman_tree = NULL, *flag_tree = NULL;
if (PTREE_DATA(tree)->visible) {
ti = proto_tree_add_protocol_format(tree, proto_bat_plugin, tvb, 0, BATMAN_PACKET_V5_SIZE,
"B.A.T.M.A.N., Orig: %s (%s)",
get_hostname(orig), ip_to_str(batman_packeth->orig.data));
} else {
ti = proto_tree_add_item(tree, proto_bat_plugin, tvb, 0, BATMAN_PACKET_V5_SIZE, FALSE);
}
bat_batman_tree = proto_item_add_subtree(ti, ett_bat_batman);
/* items */
proto_tree_add_item(bat_batman_tree, hf_bat_batman_version, tvb, offset, 1, FALSE);
offset += 1;
tf = proto_tree_add_item(bat_batman_tree, hf_bat_batman_flags, tvb, offset, 1, FALSE);
/* <flags> */
flag_tree = proto_item_add_subtree(tf, ett_bat_batman_flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_unidirectional, tvb, offset, 1, batman_packeth->flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
/* </flags> */
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_ttl, tvb, offset, 1, FALSE);
offset += 1;
tgw = proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwflags, tvb, offset, 1, FALSE);
dissect_bat_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_seqno, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwport, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_orig, tvb, offset, 4, orig);
offset += 4;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_old_orig, tvb, offset, 4, old_orig);
offset += 4;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_tq, tvb, offset, 1, FALSE);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_hna_len, tvb, offset, 1, FALSE);
offset += 1;
tap_queue_packet(bat_tap, pinfo, batman_packeth);
for (i = 0; i < batman_packeth->hna_len; i++) {
next_tvb = tvb_new_subset(tvb, offset, 5, 5);
if (have_tap_listener(bat_follow_tap)) {
tap_queue_packet(bat_follow_tap, pinfo, next_tvb);
}
dissect_bat_hna(next_tvb, pinfo, bat_batman_tree);
offset += 5;
}
}
length_remaining = tvb_reported_length_remaining(tvb, offset);
if (length_remaining != 0) {
next_tvb = tvb_new_subset_remaining(tvb, offset);
if (have_tap_listener(bat_follow_tap)) {
tap_queue_packet(bat_follow_tap, pinfo, next_tvb);
}
dissect_bat_batman(next_tvb, pinfo, tree);
}
}
static int dissect_bat_batman_v5(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
{
proto_item *tf, *tgw;
proto_tree *bat_batman_tree = NULL, *flag_tree;
struct batman_packet_v5 *batman_packeth;
const guint8 *old_orig_addr, *orig_addr;
guint32 old_orig, orig;
gint i;
tvbuff_t *next_tvb;
batman_packeth = wmem_new(wmem_packet_scope(), struct batman_packet_v5);
batman_packeth->version = tvb_get_guint8(tvb, offset+0);
batman_packeth->flags = tvb_get_guint8(tvb, offset+1);
batman_packeth->ttl = tvb_get_guint8(tvb, offset+2);
batman_packeth->gwflags = tvb_get_guint8(tvb, offset+3);
batman_packeth->seqno = tvb_get_ntohs(tvb, offset+4);
batman_packeth->gwport = tvb_get_ntohs(tvb, offset+6);
orig_addr = tvb_get_ptr(tvb, offset+8, 4);
orig = tvb_get_ipv4(tvb, offset+8);
SET_ADDRESS(&batman_packeth->orig, AT_IPv4, 4, orig_addr);
old_orig_addr = tvb_get_ptr(tvb, offset+12, 4);
old_orig = tvb_get_ipv4(tvb, offset+12);
SET_ADDRESS(&batman_packeth->old_orig, AT_IPv4, 4, old_orig_addr);
batman_packeth->tq = tvb_get_guint8(tvb, offset+16);
batman_packeth->hna_len = tvb_get_guint8(tvb, offset+17);
/* Set info column */
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
/* Set tree info */
if (tree) {
proto_item *ti;
if (PTREE_DATA(tree)->visible) {
ti = proto_tree_add_protocol_format(tree, proto_bat_plugin, tvb, offset, BATMAN_PACKET_V5_SIZE,
"B.A.T.M.A.N., Orig: %s (%s)",
get_hostname(orig), ip_to_str((const guint8 *)batman_packeth->orig.data));
} else {
ti = proto_tree_add_item(tree, proto_bat_plugin, tvb, offset, BATMAN_PACKET_V5_SIZE, ENC_NA);
}
bat_batman_tree = proto_item_add_subtree(ti, ett_bat_batman);
}
/* items */
proto_tree_add_item(bat_batman_tree, hf_bat_batman_version, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tf = proto_tree_add_item(bat_batman_tree, hf_bat_batman_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
/* <flags> */
flag_tree = proto_item_add_subtree(tf, ett_bat_batman_flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_unidirectional, tvb, offset, 1, batman_packeth->flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
/* </flags> */
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_ttl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tgw = proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwflags, tvb, offset, 1, ENC_BIG_ENDIAN);
dissect_bat_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_seqno, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwport, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_orig, tvb, offset, 4, orig);
offset += 4;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_old_orig, tvb, offset, 4, old_orig);
offset += 4;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_tq, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_hna_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tap_queue_packet(bat_tap, pinfo, batman_packeth);
for (i = 0; i < batman_packeth->hna_len; i++) {
next_tvb = tvb_new_subset(tvb, offset, 5, 5);
if (have_tap_listener(bat_follow_tap)) {
tap_queue_packet(bat_follow_tap, pinfo, next_tvb);
}
dissect_bat_hna(next_tvb, pinfo, bat_batman_tree);
offset += 5;
}
return offset;
}
