Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2196 insertions, 0 deletions

diff --git a/epan/dissectors/packet-gadu-gadu.c b/epan/dissectors/packet-gadu-gadu.c
new file mode 100644
index 00000000..c073f9c9
--- /dev/null
+++ b/epan/dissectors/packet-gadu-gadu.c
@@ -0,0 +1,2196 @@
+/* packet-gadu-gadu.c
+ * Routines for Gadu-Gadu dissection
+ * Copyright 2011,2012, Jakub Zawadzki <darkjames-ws@darkjames.pl>
+ *
+ * Protocol documentation available at http://toxygen.net/libgadu/protocol/
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/prefs.h>
+#include "packet-tcp.h"
+
+void proto_register_gadu_gadu(void);
+void proto_reg_handoff_gadu_gadu(void);
+
+#define TCP_PORT_GADU_GADU 8074	/* assigned by IANA */
+
+/* desegmentation of Gadu-Gadu over TCP */
+static gboolean gadu_gadu_desegment = TRUE;
+
+static dissector_handle_t gadu_gadu_handle;
+
+static int proto_gadu_gadu = -1;
+
+static int hf_dcc_filename = -1;
+static int hf_dcc_id = -1;
+static int hf_dcc_type = -1;
+static int hf_dcc_uin_from = -1;
+static int hf_dcc_uin_to = -1;
+static int hf_gadu_gadu_contact_type = -1;
+static int hf_gadu_gadu_contact_uin = -1;
+static int hf_gadu_gadu_contact_uin_str = -1;
+static int hf_gadu_gadu_data = -1;
+static int hf_gadu_gadu_header_length = -1;
+static int hf_gadu_gadu_header_type_recv = -1;
+static int hf_gadu_gadu_header_type_send = -1;
+static int hf_gadu_gadu_login80_lang = -1;
+static int hf_gadu_gadu_login_hash = -1;
+static int hf_gadu_gadu_login_hash_type = -1;
+static int hf_gadu_gadu_login_local_ip = -1;
+static int hf_gadu_gadu_login_local_port = -1;
+static int hf_gadu_gadu_login_protocol = -1;
+static int hf_gadu_gadu_login_status = -1;
+static int hf_gadu_gadu_login_uin = -1;
+static int hf_gadu_gadu_login_version = -1;
+static int hf_gadu_gadu_msg80_offset_attr = -1;
+static int hf_gadu_gadu_msg80_offset_plain = -1;
+static int hf_gadu_gadu_msg_ack_recipient = -1;
+static int hf_gadu_gadu_msg_ack_seq = -1;
+static int hf_gadu_gadu_msg_ack_status = -1;
+static int hf_gadu_gadu_msg_class = -1;
+static int hf_gadu_gadu_msg_recipient = -1;
+static int hf_gadu_gadu_msg_sender = -1;
+static int hf_gadu_gadu_msg_seq = -1;
+static int hf_gadu_gadu_msg_text = -1;
+static int hf_gadu_gadu_msg_time = -1;
+static int hf_gadu_gadu_msg_uin = -1;
+static int hf_gadu_gadu_new_status_desc = -1;
+static int hf_gadu_gadu_new_status_status = -1;
+static int hf_gadu_gadu_pubdir_reply_seq = -1;
+static int hf_gadu_gadu_pubdir_reply_str = -1;
+static int hf_gadu_gadu_pubdir_reply_type = -1;
+static int hf_gadu_gadu_pubdir_request_seq = -1;
+static int hf_gadu_gadu_pubdir_request_str = -1;
+static int hf_gadu_gadu_pubdir_request_type = -1;
+static int hf_gadu_gadu_status_descr = -1;
+static int hf_gadu_gadu_status_img_size = -1;
+static int hf_gadu_gadu_status_ip = -1;
+static int hf_gadu_gadu_status_port = -1;
+static int hf_gadu_gadu_status_status = -1;
+static int hf_gadu_gadu_status_uin = -1;
+static int hf_gadu_gadu_status_version = -1;
+static int hf_gadu_gadu_typing_notify_type = -1;
+static int hf_gadu_gadu_typing_notify_uin = -1;
+static int hf_gadu_gadu_userdata_attr_name = -1;
+static int hf_gadu_gadu_userdata_attr_type = -1;
+static int hf_gadu_gadu_userdata_attr_value = -1;
+static int hf_gadu_gadu_userdata_uin = -1;
+static int hf_gadu_gadu_userlist = -1;
+static int hf_gadu_gadu_userlist_format = -1;
+static int hf_gadu_gadu_userlist_reply_type = -1;
+static int hf_gadu_gadu_userlist_request_type = -1;
+static int hf_gadu_gadu_userlist_version = -1;
+static int hf_gadu_gadu_welcome_seed = -1;
+
+static int ett_gadu_gadu = -1;
+static int ett_gadu_gadu_contact = -1;
+
+#define GG_ERA_OMNIX_MASK 0x04000000
+#define GG_HAS_AUDIO_MASK 0x40000000
+
+#define GG_WELCOME                  0x01
+#define GG_STATUS                   0x02
+#define GG_LOGIN_OK                 0x03
+#define GG_SEND_MSG_ACK             0x05
+#define GG_PONG                     0x07
+#define GG_PING                     0x08
+#define GG_LOGIN_FAILED             0x09
+#define GG_RECV_MSG                 0x0a
+#define GG_DISCONNECTING            0x0b
+#define GG_NOTIFY_REPLY             0x0c
+#define GG_DISCONNECT_ACK           0x0d
+#define GG_PUBDIR50_REPLY           0x0e
+#define GG_STATUS60                 0x0f
+#define GG_USERLIST_REPLY           0x10
+#define GG_NOTIFY_REPLY60           0x11
+#define GG_NEED_EMAIL               0x14
+#define GG_LOGIN_HASH_TYPE_INVALID  0x16
+#define GG_STATUS77                 0x17
+#define GG_NOTIFY_REPLY77           0x18
+#define GG_DCC7_INFO                0x1f
+#define GG_DCC7_NEW                 0x20
+#define GG_DCC7_ACCEPT              0x21
+#define GG_DCC7_REJECT              0x22
+#define GG_DCC7_ID_REPLY            0x23
+#define GG_DCC7_ID_ABORTED          0x25
+#define GG_XML_EVENT                0x27
+#define GG_STATUS80BETA             0x2a
+#define GG_NOTIFY_REPLY80BETA       0x2b
+#define GG_XML_ACTION               0x2c
+#define GG_RECV_MSG80               0x2e
+#define GG_USERLIST_REPLY80         0x30
+#define GG_LOGIN_OK80               0x35
+#define GG_STATUS80                 0x36
+#define GG_NOTIFY_REPLY80           0x37
+#define GG_USERLIST100_REPLY        0x41
+#define GG_LOGIN80_FAILED           0x43
+#define GG_USER_DATA                0x44
+#define GG_TYPING_NOTIFY            0x59
+#define GG_OWN_MESSAGE              0x5A
+#define GG_OWN_RESOURCE_INFO        0x5B
+#define GG_USERLIST100_VERSION      0x5C
+
+
+#define GG_TYPE_VS(x) { x, #x }
+
+/* original (GG_*) names likes in documentation (http://toxygen.net/libgadu/protocol/#ch1.16) */
+static const value_string gadu_gadu_packets_type_recv[] = {
+	GG_TYPE_VS(GG_WELCOME),
+	GG_TYPE_VS(GG_STATUS),
+	GG_TYPE_VS(GG_LOGIN_OK),
+	GG_TYPE_VS(GG_SEND_MSG_ACK),
+	GG_TYPE_VS(GG_PONG),
+	GG_TYPE_VS(GG_PING),
+	GG_TYPE_VS(GG_LOGIN_FAILED),
+	GG_TYPE_VS(GG_RECV_MSG),
+	GG_TYPE_VS(GG_DISCONNECTING),
+	GG_TYPE_VS(GG_NOTIFY_REPLY),
+	GG_TYPE_VS(GG_DISCONNECT_ACK),
+	GG_TYPE_VS(GG_PUBDIR50_REPLY),
+	GG_TYPE_VS(GG_STATUS60),
+	GG_TYPE_VS(GG_USERLIST_REPLY),
+	GG_TYPE_VS(GG_NOTIFY_REPLY60),
+	GG_TYPE_VS(GG_NEED_EMAIL),
+	GG_TYPE_VS(GG_LOGIN_HASH_TYPE_INVALID),
+	GG_TYPE_VS(GG_STATUS77),
+	GG_TYPE_VS(GG_NOTIFY_REPLY77),
+	GG_TYPE_VS(GG_DCC7_INFO),
+	GG_TYPE_VS(GG_DCC7_NEW),
+	GG_TYPE_VS(GG_DCC7_ACCEPT),
+	GG_TYPE_VS(GG_DCC7_REJECT),
+	GG_TYPE_VS(GG_DCC7_ID_REPLY),
+	GG_TYPE_VS(GG_DCC7_ID_ABORTED),
+	GG_TYPE_VS(GG_XML_EVENT),
+	GG_TYPE_VS(GG_STATUS80BETA),
+	GG_TYPE_VS(GG_NOTIFY_REPLY80BETA),
+	GG_TYPE_VS(GG_XML_ACTION),
+	GG_TYPE_VS(GG_RECV_MSG80),
+	GG_TYPE_VS(GG_USERLIST_REPLY80),
+	GG_TYPE_VS(GG_LOGIN_OK80),
+	GG_TYPE_VS(GG_STATUS80),
+	GG_TYPE_VS(GG_NOTIFY_REPLY80),
+	GG_TYPE_VS(GG_USERLIST100_REPLY),
+	GG_TYPE_VS(GG_LOGIN80_FAILED),
+	GG_TYPE_VS(GG_USER_DATA),
+	GG_TYPE_VS(GG_TYPING_NOTIFY),
+	GG_TYPE_VS(GG_OWN_MESSAGE),
+	GG_TYPE_VS(GG_OWN_RESOURCE_INFO),
+	GG_TYPE_VS(GG_USERLIST100_VERSION),
+	{ 0, NULL }
+};
+
+#define GG_NEW_STATUS           0x02
+#define GG_PONG                 0x07
+#define GG_PING                 0x08
+#define GG_SEND_MSG             0x0b
+#define GG_LOGIN                0x0c
+#define GG_ADD_NOTIFY           0x0d
+#define GG_REMOVE_NOTIFY        0x0e
+#define GG_NOTIFY_FIRST         0x0f
+#define GG_NOTIFY_LAST          0x10
+#define GG_LIST_EMPTY           0x12
+#define GG_LOGIN_EXT            0x13
+#define GG_PUBDIR50_REQUEST     0x14
+#define GG_LOGIN60              0x15
+#define GG_USERLIST_REQUEST     0x16
+#define GG_LOGIN70              0x19
+#define GG_DCC7_INFO            0x1f
+#define GG_DCC7_NEW             0x20
+#define GG_DCC7_ACCEPT          0x21
+#define GG_DCC7_REJECT          0x22
+#define GG_DCC7_ID_REQUEST      0x23
+#define GG_DCC7_ID_DUNNO1       0x24
+#define GG_DCC7_ID_ABORT        0x25
+#define GG_NEW_STATUS80BETA     0x28
+#define GG_LOGIN80BETA          0x29
+#define GG_SEND_MSG80           0x2d
+#define GG_USERLIST_REQUEST80   0x2f
+#define GG_LOGIN80              0x31
+#define GG_NEW_STATUS80         0x38
+#define GG_USERLIST100_REQUEST  0x40
+#define GG_RECV_MSG_ACK         0x46
+#define GG_TYPING_NOTIFY        0x59
+#define GG_OWN_DISCONNECT       0x62
+#define GG_NEW_STATUS105        0x63
+#define GG_NOTIFY105            0x78
+#define GG_ADD_NOTIFY105        0x7b
+#define GG_REMOVE_NOTIFY105     0x7c
+#define GG_LOGIN105             0x83
+
+static const value_string gadu_gadu_packets_type_send[] = {
+	GG_TYPE_VS(GG_NEW_STATUS),
+	GG_TYPE_VS(GG_PONG),
+	GG_TYPE_VS(GG_PING),
+	GG_TYPE_VS(GG_SEND_MSG),
+	GG_TYPE_VS(GG_LOGIN),
+	GG_TYPE_VS(GG_ADD_NOTIFY),
+	GG_TYPE_VS(GG_REMOVE_NOTIFY),
+	GG_TYPE_VS(GG_NOTIFY_FIRST),
+	GG_TYPE_VS(GG_NOTIFY_LAST),
+	GG_TYPE_VS(GG_LIST_EMPTY),
+	GG_TYPE_VS(GG_LOGIN_EXT),
+	GG_TYPE_VS(GG_PUBDIR50_REQUEST),
+	GG_TYPE_VS(GG_LOGIN60),
+	GG_TYPE_VS(GG_USERLIST_REQUEST),
+	GG_TYPE_VS(GG_LOGIN70),
+	GG_TYPE_VS(GG_DCC7_INFO),
+	GG_TYPE_VS(GG_DCC7_NEW),
+	GG_TYPE_VS(GG_DCC7_ACCEPT),
+	GG_TYPE_VS(GG_DCC7_REJECT),
+	GG_TYPE_VS(GG_DCC7_ID_REQUEST),
+	GG_TYPE_VS(GG_DCC7_ID_DUNNO1),
+	GG_TYPE_VS(GG_DCC7_ID_ABORT),
+	GG_TYPE_VS(GG_NEW_STATUS80BETA),
+	GG_TYPE_VS(GG_LOGIN80BETA),
+	GG_TYPE_VS(GG_SEND_MSG80),
+	GG_TYPE_VS(GG_USERLIST_REQUEST80),
+	GG_TYPE_VS(GG_LOGIN80),
+	GG_TYPE_VS(GG_NEW_STATUS80),
+	GG_TYPE_VS(GG_USERLIST100_REQUEST),
+	GG_TYPE_VS(GG_RECV_MSG_ACK),
+	GG_TYPE_VS(GG_TYPING_NOTIFY),
+	GG_TYPE_VS(GG_OWN_DISCONNECT),
+	GG_TYPE_VS(GG_NEW_STATUS105),
+	GG_TYPE_VS(GG_NOTIFY105),
+	GG_TYPE_VS(GG_ADD_NOTIFY105),
+	GG_TYPE_VS(GG_REMOVE_NOTIFY105),
+	GG_TYPE_VS(GG_LOGIN105),
+	{ 0, NULL }
+};
+
+static const value_string gadu_gadu_msg_ack_status_vals[] = {
+	{ 0x01, "Message blocked" },
+	{ 0x02, "Message delivered" },
+	{ 0x03, "Message queued" },
+	{ 0x04, "Message not delivered (queue full)" },
+	{ 0x06, "CTCP Message not delivered" },
+	{ 0, NULL }
+};
+
+#define GG_STATUS_NOT_AVAIL         0x01
+#define GG_STATUS_NOT_AVAIL_DESCR   0x15
+#define GG_STATUS_FFC               0x17
+#define GG_STATUS_FFC_DESCR         0x18
+#define GG_STATUS_AVAIL             0x02
+#define GG_STATUS_AVAIL_DESCR       0x04
+#define GG_STATUS_BUSY              0x03
+#define GG_STATUS_BUSY_DESCR        0x05
+#define GG_STATUS_DND               0x21
+#define GG_STATUS_DND_DESCR         0x22
+#define GG_STATUS_INVISIBLE         0x14
+#define GG_STATUS_INVISIBLE_DESCR   0x16
+#define GG_STATUS_BLOCKED           0x06
+
+#define GG_LOGIN_HASH_GG32 0x01
+#define GG_LOGIN_HASH_SHA1 0x02
+
+static const value_string gadu_gadu_hash_type_vals[] = {
+	{ GG_LOGIN_HASH_GG32, "GG32 hash" },
+	{ GG_LOGIN_HASH_SHA1, "SHA1 hash" },
+	{ 0, NULL }
+};
+
+#define GG_USERLIST_PUT 0x00
+#define GG_USERLIST_PUT_MORE 0x01
+#define GG_USERLIST_GET 0x02
+
+static const value_string gadu_gadu_userlist_request_type_vals[] = {
+	{ GG_USERLIST_PUT, "Userlist put" },
+	{ GG_USERLIST_PUT_MORE, "Userlist put (more)" },
+	{ GG_USERLIST_GET, "Userlist get" },
+	{ 0, NULL }
+};
+
+#define GG_USERLIST_PUT_REPLY 0x00
+#define GG_USERLIST_PUT_MORE_REPLY 0x02
+#define GG_USERLIST_GET_REPLY 0x06
+#define GG_USERLIST_GET_MORE_REPLY 0x04
+
+static const value_string gadu_gadu_userlist_reply_type_vals[] = {
+	{ GG_USERLIST_PUT_REPLY, "Userlist put" },
+	{ GG_USERLIST_PUT_MORE_REPLY, "Userlist put (more)" },
+	{ GG_USERLIST_GET_REPLY, "Userlist get" },
+	{ GG_USERLIST_GET_MORE_REPLY, "Userlist get (more)" },
+	{ 0, NULL }
+};
+
+#define GG_USERLIST100_FORMAT_TYPE_NONE 0x00
+#define GG_USERLIST100_FORMAT_TYPE_GG70 0x01
+#define GG_USERLIST100_FORMAT_TYPE_GG100 0x02
+
+static const value_string gadu_gadu_userlist_request_format_vals[] = {
+	{ GG_USERLIST100_FORMAT_TYPE_NONE, "None" },
+	{ GG_USERLIST100_FORMAT_TYPE_GG70, "Classic (7.0)" },
+	{ GG_USERLIST100_FORMAT_TYPE_GG100, "XML (10.0)" },
+	{ 0, NULL }
+};
+
+/* XXX, add compatible libgadu versions? */
+static const value_string gadu_gadu_version_vals[] = {
+	{ 0x2e, "Gadu-Gadu 8.0 (build 8283)" },
+	{ 0x2d, "Gadu-Gadu 8.0 (build 4881)" },
+	{ 0x2a,	"Gadu-Gadu 7.7 (build 3315)" },
+	{ 0x29,	"Gadu-Gadu 7.6 (build 1688)" },
+	{ 0x28,	"Gadu-Gadu 7.5.0 (build 2201)" },
+	{ 0x27,	"Gadu-Gadu 7.0 (build 22)" },
+	{ 0x26,	"Gadu-Gadu 7.0 (build 20)" },
+	{ 0x25,	"Gadu-Gadu 7.0 (build 1)" },
+	{ 0x24,	"Gadu-Gadu 6.1 (build 155) or 7.6 (build 1359)" },
+	{ 0x22,	"Gadu-Gadu 6.0 (build 140)" },
+	{ 0x21,	"Gadu-Gadu 6.0 (build 133)" },
+	{ 0x20,	"Gadu-Gadu 6.0" },
+	{ 0x1e,	"Gadu-Gadu 5.7 beta (build 121)" },
+	{ 0x1c,	"Gadu_Gadu 5.7 beta" },
+	{ 0x1b,	"Gadu-Gadu 5.0.5" },
+	{ 0x19,	"Gadu-Gadu 5.0.3" },
+	{ 0x18,	"Gadu-Gadu 5.0.1, 5.0.0, 4.9.3" },
+	{ 0x17,	"Gadu-Gadu 4.9.2" },
+	{ 0x16,	"Gadu-Gadu 4.9.1" },
+	{ 0x15,	"Gadu-Gadu 4.8.9" },
+	{ 0x14,	"Gadu-Gadu 4.8.3, 4.8.1" },
+	{ 0x11,	"Gadu-Gadu 4.6.10, 4.6.1" },
+	{ 0x10,	"Gadu-Gadu 4.5.22, 4.5.21, 4.5.19, 4.5.17, 4.5.15" },
+	{ 0x0f,	"Gadu-Gadu 4.5.12" },
+	{ 0x0b,	"Gadu-Gadu 4.0.30, 4.0.29, 4.0.28, 4.0.25" },
+	{ 0, NULL }
+};
+
+static const value_string gadu_gadu_dcc_type_vals[] = {
+	{ 1, "Voice transmission" },
+	{ 4, "File transmission" },
+	{ 0, NULL }
+};
+
+static const value_string gadu_gadu_typing_notify_type_vals[] = {
+	{ 1, "Typing started" },
+	{ 0, "Typing stopped" },
+	{ 0, NULL }
+};
+
+static const value_string gadu_gadu_pubdir_type_vals[] = {
+	{ 1, "Public directory write" },
+	{ 2, "Public directory read" },
+	{ 3, "Public directory search" },
+	{ 0, NULL }
+};
+
+static dissector_handle_t xml_handle;
+
+struct gadu_gadu_conv_data {
+	guint32 uin;	/* uin from login packet */
+};
+
+static struct gadu_gadu_conv_data *
+gadu_gadu_create_conversation(packet_info *pinfo, guint32 uin)
+{
+	conversation_t *conv;
+	struct gadu_gadu_conv_data *gg_conv;
+
+	conv = find_or_create_conversation(pinfo);
+	gg_conv = (struct gadu_gadu_conv_data *)conversation_get_proto_data(conv, proto_gadu_gadu);
+	if (!gg_conv) {
+		gg_conv = wmem_new(wmem_file_scope(), struct gadu_gadu_conv_data);
+		gg_conv->uin = uin;
+
+		conversation_add_proto_data(conv, proto_gadu_gadu, gg_conv);
+	}
+	/* assert(gg_conv->uin == uin); */
+	return gg_conv;
+}
+
+static struct gadu_gadu_conv_data *
+gadu_gadu_get_conversation_data(packet_info *pinfo)
+{
+	conversation_t *conv;
+
+	conv = find_conversation_pinfo(pinfo, 0);
+	if (conv)
+		return (struct gadu_gadu_conv_data *)conversation_get_proto_data(conv, proto_gadu_gadu);
+	return NULL;
+}
+
+static gboolean
+gadu_gadu_status_has_descr(int status)
+{
+	return
+		(status == GG_STATUS_NOT_AVAIL_DESCR) ||
+		(status == GG_STATUS_FFC_DESCR) ||
+		(status == GG_STATUS_AVAIL_DESCR) ||
+		(status == GG_STATUS_BUSY_DESCR) ||
+		(status == GG_STATUS_DND_DESCR) ||
+		(status == GG_STATUS_INVISIBLE_DESCR);
+}
+
+/* like tvb_strsize() but return maximum length instead of throwing exception */
+static int
+gadu_gadu_strsize(tvbuff_t *tvb, const gint abs_offset)
+{
+	int nul_offset;
+
+	nul_offset = tvb_find_guint8(tvb, abs_offset, -1, 0);
+	if (nul_offset == -1)
+		nul_offset = tvb_captured_length(tvb) - 1;
+
+	return (nul_offset - abs_offset) + 1;
+}
+
+static int
+dissect_gadu_gadu_stringz_cp1250(tvbuff_t *tvb, int hfindex, proto_tree *tree, const int offset)
+{
+	int len = gadu_gadu_strsize(tvb, offset);
+
+	proto_tree_add_item(tree, hfindex, tvb, offset, len, ENC_WINDOWS_1250 | ENC_NA);
+
+	return offset + len;
+}
+
+static int
+dissect_gadu_gadu_uint32_string_utf8(tvbuff_t *tvb, int hfindex, proto_tree *tree, int offset)
+{
+	const int org_offset = offset;
+
+	guint32 len;
+
+	len = tvb_get_letohl(tvb, offset);
+	offset += 4;
+
+	offset += len;
+
+	proto_tree_add_item(tree, hfindex, tvb, org_offset, offset - org_offset, ENC_UTF_8 | ENC_NA);
+
+	return offset;
+}
+
+
+static int
+dissect_gadu_gadu_disconnecting(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Disconnecting");
+
+	/* empty packet */
+
+	return offset;
+}
+
+
+static int
+dissect_gadu_gadu_disconnect_ack(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Disconnect acknowledge (< 10.0)");
+
+	/* empty packet */
+
+	return offset;
+}
+
+static void *
+_tvb_memcpy_reverse(tvbuff_t *tvb, void *target, gint offset, size_t length)
+{
+	guint8 *t = (guint8 *) target;
+
+	while (length > 0) {
+		length--;
+		t[length] = tvb_get_guint8(tvb, offset);
+		offset++;
+	}
+	return target;
+}
+
+static int
+dissect_gadu_gadu_login_protocol(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+	proto_item *ti;
+
+	guint32 protocol;
+
+	protocol = tvb_get_letohl(tvb, offset) & 0xff;
+	proto_tree_add_item(tree, hf_gadu_gadu_login_protocol, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	ti = proto_tree_add_string(tree, hf_gadu_gadu_login_version, tvb, offset, 4, val_to_str(protocol, gadu_gadu_version_vals, "Unknown (0x%x)"));
+	proto_item_set_generated(ti);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	proto_item *ti;
+
+	guint32 uin;
+	guint8 hash[4];
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Login request (< 6.0)");
+
+	uin = tvb_get_letohl(tvb, offset);
+	gadu_gadu_create_conversation(pinfo, uin);
+
+	proto_tree_add_uint(tree, hf_gadu_gadu_login_uin, tvb, offset, 4, uin);
+	offset += 4;
+
+	ti = proto_tree_add_uint(tree, hf_gadu_gadu_login_hash_type, tvb, 0, 0, GG_LOGIN_HASH_GG32);
+	proto_item_set_generated(ti);
+
+	/* hash is 32-bit number written in LE */
+	_tvb_memcpy_reverse(tvb, hash, offset, 4);
+	proto_tree_add_bytes_format_value(tree, hf_gadu_gadu_login_hash, tvb, offset, 4, hash, "0x%.8x", tvb_get_letohl(tvb, offset));
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_login_protocol(tvb, tree, offset);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_local_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_local_port, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+	offset += 2;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login_hash(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+	guint8 hash_type;
+
+	guint8 hash[4];
+	int i;
+
+	hash_type = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_login_hash_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	switch (hash_type) {
+		case GG_LOGIN_HASH_GG32:
+			/* hash is 32-bit number written in LE */
+			_tvb_memcpy_reverse(tvb, hash, offset, 4);
+			proto_tree_add_bytes_format_value(tree, hf_gadu_gadu_login_hash, tvb, offset, 4, hash, "0x%.8x", tvb_get_letohl(tvb, offset));
+			for (i = 4; i < 64; i++) {
+				if (tvb_get_guint8(tvb, offset+i)) {
+					proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset + 4, 64-4, ENC_NA);
+					break;
+				}
+			}
+			break;
+
+		case GG_LOGIN_HASH_SHA1:
+			proto_tree_add_item(tree, hf_gadu_gadu_login_hash, tvb, offset, 20, ENC_NA);
+			for (i = 20; i < 64; i++) {
+				if (tvb_get_guint8(tvb, offset+i)) {
+					proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset + 20, 64-20, ENC_NA);
+					break;
+				}
+			}
+			break;
+
+		default:
+			proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 64, ENC_NA);
+			break;
+	}
+	offset += 64;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login70(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint32 uin;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Login request (7.0)");
+
+	uin = tvb_get_letohl(tvb, offset) & ~(GG_ERA_OMNIX_MASK | GG_HAS_AUDIO_MASK);
+	gadu_gadu_create_conversation(pinfo, uin);
+
+	proto_tree_add_uint(tree, hf_gadu_gadu_login_uin, tvb, offset, 4, uin);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_login_hash(tvb, tree, offset);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_login_protocol(tvb, tree, offset);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA);	/* 00 */
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_local_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_local_port, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+	offset += 2;
+
+	/* XXX packet not fully dissected */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint32 uin;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Login request (8.0)");
+
+	uin = tvb_get_letohl(tvb, offset);
+	gadu_gadu_create_conversation(pinfo, uin);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login80_lang, tvb, offset, 2, ENC_ASCII | ENC_NA);
+	offset += 2;
+
+	offset = dissect_gadu_gadu_login_hash(tvb, tree, offset);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_login_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	/* XXX packet not fully dissected */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login_ok(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Login success (< 8.0)");
+
+	/* not empty packet, but content unknown */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login_failed(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Login fail (< 8.0)");
+
+	/* empty packet */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login_ok80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Login success (8.0)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 4, ENC_NA);	/* 01 00 00 00 */
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_login80_failed(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Login fail (8.0)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 4, ENC_NA);	/* 01 00 00 00 */
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_user_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint32 users_num;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Contact details");
+
+	/* XXX, add subtrees */
+
+	offset += 4;
+
+	users_num = tvb_get_letohl(tvb, offset);
+	offset += 4;
+
+	while (users_num--) {
+		guint32 attr_num;
+
+		proto_tree_add_item(tree, hf_gadu_gadu_userdata_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+		offset += 4;
+
+		attr_num = tvb_get_letohl(tvb, offset);
+		offset += 4;
+
+		while (attr_num--) {
+			guint32 name_size, val_size;
+			char *name, *val;
+	/* name */
+			name_size = tvb_get_letohl(tvb, offset);
+			offset += 4;
+
+			name = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, name_size, ENC_ASCII | ENC_NA);
+			proto_tree_add_string(tree, hf_gadu_gadu_userdata_attr_name, tvb, offset - 4, 4 + name_size, name);
+			offset += name_size;
+	/* type */
+			proto_tree_add_item(tree, hf_gadu_gadu_userdata_attr_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+			offset += 4;
+	/* value */
+			val_size = tvb_get_letohl(tvb, offset);
+			offset += 4;
+
+			val = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, val_size, ENC_ASCII | ENC_NA);
+			proto_tree_add_string(tree, hf_gadu_gadu_userdata_attr_value, tvb, offset - 4, 4 + val_size, val);
+			offset += val_size;
+		}
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_typing_notify(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Typing notify");
+
+	/* XXX, when type > 1, it's length not type ! */
+	proto_tree_add_item(tree, hf_gadu_gadu_typing_notify_type, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+	offset += 2;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_typing_notify_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_msg_attr(tvbuff_t *tvb _U_, proto_tree *tree _U_, int offset)
+{
+	/* XXX, stub */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_recv_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	struct gadu_gadu_conv_data *conv;
+	proto_item *ti;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Receive message (< 8.0)");
+
+	if ((conv = gadu_gadu_get_conversation_data(pinfo))) {
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_recipient, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_uin, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+		proto_item_set_hidden(ti);
+	}
+
+	ti = proto_tree_add_item(tree, hf_gadu_gadu_msg_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	proto_item_set_hidden(ti);
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_sender, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_time, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_class, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_stringz_cp1250(tvb, hf_gadu_gadu_msg_text, tree, offset);
+
+	offset = dissect_gadu_gadu_msg_attr(tvb, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_send_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	struct gadu_gadu_conv_data *conv;
+	proto_item *ti;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Send message (< 8.0)");
+
+	ti = proto_tree_add_item(tree, hf_gadu_gadu_msg_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	proto_item_set_hidden(ti);
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_recipient, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	if ((conv = gadu_gadu_get_conversation_data(pinfo))) {
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_sender, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_uin, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+		proto_item_set_hidden(ti);
+	}
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	ti = proto_tree_add_time(tree, hf_gadu_gadu_msg_time, tvb, 0, 0, &(pinfo->abs_ts));
+	proto_item_set_generated(ti);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_class, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_stringz_cp1250(tvb, hf_gadu_gadu_msg_text, tree, offset);
+
+	offset = dissect_gadu_gadu_msg_attr(tvb, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_recv_msg80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	struct gadu_gadu_conv_data *conv;
+	proto_item *ti;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Receive message (8.0)");
+
+	if ((conv = gadu_gadu_get_conversation_data(pinfo))) {
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_recipient, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_uin, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+		proto_item_set_hidden(ti);
+	}
+
+	ti = proto_tree_add_item(tree, hf_gadu_gadu_msg_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	proto_item_set_hidden(ti);
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_sender, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_time, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_class, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg80_offset_plain, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg80_offset_attr, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	/* XXX packet not fully dissected */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_send_msg80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	struct gadu_gadu_conv_data *conv;
+	proto_item *ti;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Send message (8.0)");
+
+	ti = proto_tree_add_item(tree, hf_gadu_gadu_msg_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	proto_item_set_hidden(ti);
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_recipient, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	if ((conv = gadu_gadu_get_conversation_data(pinfo))) {
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_sender, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+
+		ti = proto_tree_add_uint(tree, hf_gadu_gadu_msg_uin, tvb, 0, 0, conv->uin);
+		proto_item_set_generated(ti);
+		proto_item_set_hidden(ti);
+	}
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	ti = proto_tree_add_time(tree, hf_gadu_gadu_msg_time, tvb, 0, 0, &(pinfo->abs_ts));
+	proto_item_set_generated(ti);
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_class, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg80_offset_plain, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg80_offset_attr, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	/* XXX packet not fully dissected */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_send_msg_ack(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Message acknowledge (server)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_ack_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_ack_recipient, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_ack_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_recv_msg_ack(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Message acknowledge (client)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_msg_ack_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_status60(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint32 uin;
+	guint8 status;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Receive status (6.0)");
+
+	uin = tvb_get_letohl(tvb, offset) & ~(GG_ERA_OMNIX_MASK | GG_HAS_AUDIO_MASK);
+	proto_tree_add_uint(tree, hf_gadu_gadu_status_uin, tvb, offset, 4, uin);
+	offset += 4;
+
+	status = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_status_status, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_port, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+	offset += 2;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_version, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_img_size, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA);	/* 00 */
+	offset += 1;
+
+	if (gadu_gadu_status_has_descr(status))
+		offset = dissect_gadu_gadu_stringz_cp1250(tvb, hf_gadu_gadu_status_descr, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_status77(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint32 uin;
+	guint8 status;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Receive status (7.7)");
+
+	uin = tvb_get_letohl(tvb, offset) & ~(GG_ERA_OMNIX_MASK | GG_HAS_AUDIO_MASK);
+	proto_tree_add_uint(tree, hf_gadu_gadu_status_uin, tvb, offset, 4, uin);
+	offset += 4;
+
+	status = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_status_status, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_port, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+	offset += 2;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_version, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_img_size, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA);	/* 00 */
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 4, ENC_NA);
+	offset += 4;
+
+	if (gadu_gadu_status_has_descr(status))
+		offset = dissect_gadu_gadu_stringz_cp1250(tvb, hf_gadu_gadu_status_descr, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_status80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Receive status (8.0)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 4, ENC_NA);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_port, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+	offset += 2;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_status_img_size, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 4, ENC_NA);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_uint32_string_utf8(tvb, hf_gadu_gadu_status_descr, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_notify_reply80(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Receive status list (8.0)");
+
+	/* XXX packet not fully dissected */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_new_status(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint32 status;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "New status (< 8.0)");
+
+	status = tvb_get_letohl(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_new_status_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	if (gadu_gadu_status_has_descr(status & 0xff))
+		offset = dissect_gadu_gadu_stringz_cp1250(tvb, hf_gadu_gadu_status_descr, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_new_status80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "New status (8.0)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_new_status_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 4, ENC_NA);
+	offset += 4;
+
+	offset = dissect_gadu_gadu_uint32_string_utf8(tvb, hf_gadu_gadu_new_status_desc, tree, offset);
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_list_empty(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list (empty)");
+
+	/* empty packet */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_add_notify(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list add");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_contact_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_contact_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_notify105_common(tvbuff_t *tvb, proto_tree *tree, int offset, char **puin)
+{
+	guint16 uin_len;
+	char *uin;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA); /* unknown 00 */
+	offset += 1;
+
+	uin_len = tvb_get_guint8(tvb, offset);
+	offset += 1;
+	uin = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, uin_len, ENC_ASCII | ENC_NA);
+	proto_tree_add_string(tree, hf_gadu_gadu_contact_uin_str, tvb, offset - 1, 1 + uin_len, uin);
+	offset += uin_len;
+	if (puin)
+		*puin = uin;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_contact_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_add_notify105(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list add (10.5)");
+
+	return dissect_gadu_gadu_notify105_common(tvb, tree, offset, NULL);
+}
+
+static int
+dissect_gadu_gadu_remove_notify(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list remove");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_contact_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_contact_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_remove_notify105(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list remove (10.5)");
+
+	return dissect_gadu_gadu_notify105_common(tvb, tree, offset, NULL);
+}
+
+static int
+dissect_gadu_gadu_notify_common(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
+{
+	proto_tree *contact_tree;
+
+	while (tvb_reported_length_remaining(tvb, offset) >= 4+1) {
+		guint32 uin = tvb_get_letohl(tvb, offset);
+
+		contact_tree = proto_tree_add_subtree_format(tree, tvb, offset, 5,
+								ett_gadu_gadu_contact, NULL, "Contact: %u", uin);
+
+		proto_tree_add_item(contact_tree, hf_gadu_gadu_contact_uin, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+		offset += 4;
+
+		proto_tree_add_item(contact_tree, hf_gadu_gadu_contact_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+		offset += 1;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_notify_first(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list");
+
+	return dissect_gadu_gadu_notify_common(tvb, pinfo, tree, offset);
+}
+
+static int
+dissect_gadu_gadu_notify_last(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list (last)");
+
+	return dissect_gadu_gadu_notify_common(tvb, pinfo, tree, offset);
+}
+
+static int
+dissect_gadu_gadu_notify105(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Notify list (10.5)");
+
+	while (tvb_reported_length_remaining(tvb, offset) >= 2) {
+		const int org_offset = offset;
+
+		proto_tree *contact_tree;
+		proto_item *ti;
+
+		char *uin;
+
+		contact_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_gadu_gadu_contact, &ti, "Contact: ");
+
+		offset = dissect_gadu_gadu_notify105_common(tvb, contact_tree, offset, &uin);
+		proto_item_append_text(ti, "%s", uin);
+
+		proto_item_set_len(ti, offset - org_offset);
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_ping(tvbuff_t *tvb _U_, packet_info *pinfo, proto_tree *tree _U_, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Ping");
+
+	/* empty packet */
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_welcome(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Welcome");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_welcome_seed, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_userlist_xml_compressed(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	int remain = tvb_reported_length_remaining(tvb, offset);
+	tvbuff_t *uncomp_tvb;
+
+	if (remain <= 0)
+		return offset;
+
+	if ((uncomp_tvb = tvb_child_uncompress(tvb, tvb, offset, remain))) {
+		proto_tree_add_bytes_format_value(tree, hf_gadu_gadu_userlist, tvb, offset, remain, NULL, "%s", "[Decompression succeeded]");
+
+		add_new_data_source(pinfo, uncomp_tvb, "Uncompressed userlist");
+
+		/* XXX add DTD (pinfo->match_string) */
+		call_dissector_only(xml_handle, uncomp_tvb, pinfo, tree, NULL);
+	} else
+		proto_tree_add_bytes_format_value(tree, hf_gadu_gadu_userlist, tvb, offset, remain, NULL, "%s", "[Error: Decompression failed] (or no zlib)");
+
+	offset += remain;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_userlist_request80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint8 type;
+	proto_item *ti;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Userlist request (8.0)");
+
+	type = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_request_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	ti = proto_tree_add_uint(tree, hf_gadu_gadu_userlist_format, tvb, 0, 0, GG_USERLIST100_FORMAT_TYPE_GG100);
+	proto_item_set_generated(ti);
+
+	switch (type) {
+		case GG_USERLIST_PUT:
+			offset = dissect_gadu_gadu_userlist_xml_compressed(tvb, pinfo, tree, offset);
+			break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_userlist_request100(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint8 type, format;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Userlist request (10.0)");
+
+	type = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_request_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	format = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_format, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA);	/* 01 */
+	offset += 1;
+
+	switch (type) {
+		case GG_USERLIST_PUT:
+			if (format == GG_USERLIST100_FORMAT_TYPE_GG100)
+				offset = dissect_gadu_gadu_userlist_xml_compressed(tvb, pinfo, tree, offset);
+			break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_userlist_reply80(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint8 type;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Userlist reply (8.0)");
+
+	type = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_reply_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	switch (type) {
+		case GG_USERLIST_GET_REPLY:
+			offset = dissect_gadu_gadu_userlist_xml_compressed(tvb, pinfo, tree, offset);
+			break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_userlist_reply100(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint8 type, format;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Userlist reply (10.0)");
+
+	type = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_reply_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	format = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_format, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_data, tvb, offset, 1, ENC_NA);	/* 01 */
+	offset += 1;
+
+	switch (type) {
+		case GG_USERLIST_GET_REPLY:
+			if (format == GG_USERLIST100_FORMAT_TYPE_GG100)
+				offset = dissect_gadu_gadu_userlist_xml_compressed(tvb, pinfo, tree, offset);
+			break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_userlist_version100(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Userlist version (10.0)");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_userlist_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_dcc7_id_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Direct connection id request");
+
+	proto_tree_add_item(tree, hf_dcc_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_dcc7_id_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Direct connection id reply");
+
+	proto_tree_add_item(tree, hf_dcc_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_dcc_id, tvb, offset, 8, ENC_NA);
+	offset += 8;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_dcc7_new(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Direct connection new");
+
+	proto_tree_add_item(tree, hf_dcc_id, tvb, offset, 8, ENC_NA);
+	offset += 8;
+
+	proto_tree_add_item(tree, hf_dcc_uin_from, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_dcc_uin_to, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_dcc_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_dcc_filename, tvb, offset, 255, ENC_ASCII | ENC_NA);
+	offset += 255;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_dcc7_id_abort(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	col_set_str(pinfo->cinfo, COL_INFO, "Direct connection abort");
+
+	proto_tree_add_item(tree, hf_dcc_id, tvb, offset, 8, ENC_NA);
+	offset += 8;
+
+	proto_tree_add_item(tree, hf_dcc_uin_from, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	proto_tree_add_item(tree, hf_dcc_uin_to, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_pubdir50_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	int pos;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Public directory request");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_pubdir_request_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_pubdir_request_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+	/* XXX, link request sequence with reply sequence */
+
+	while ((pos = tvb_find_guint8(tvb, offset, -1, '\0')) > 0) {
+		/* XXX, display it better, field=value */
+		proto_tree_add_item(tree, hf_gadu_gadu_pubdir_request_str, tvb, offset, (pos - offset) + 1, ENC_NA | ENC_WINDOWS_1250);
+		offset = pos + 1;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_pubdir50_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	int pos;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "Public directory reply");
+
+	proto_tree_add_item(tree, hf_gadu_gadu_pubdir_reply_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_gadu_gadu_pubdir_reply_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+	/* XXX, link reply sequence with request sequence */
+
+	while ((pos = tvb_find_guint8(tvb, offset, -1, '\0')) > 0) {
+		/* XXX, display it better, field=value */
+		proto_tree_add_item(tree, hf_gadu_gadu_pubdir_reply_str, tvb, offset, (pos - offset) + 1, ENC_NA | ENC_WINDOWS_1250);
+		offset = pos + 1;
+	}
+
+	return offset;
+}
+
+static int
+dissect_gadu_gadu_xml_action(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	tvbuff_t *xml_tvb;
+	int ret;
+
+	col_set_str(pinfo->cinfo, COL_INFO, "XML action message");
+
+	xml_tvb = tvb_new_subset_remaining(tvb, offset);
+
+	/* XXX add DTD (pinfo->match_string) */
+	ret = call_dissector_only(xml_handle, xml_tvb, pinfo, tree, NULL);
+
+	return offset + ret;
+}
+
+static int
+dissect_gadu_gadu_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+	proto_tree *gadu_gadu_tree = NULL;
+
+	int offset = 0;
+	guint32 pkt_type;
+
+	col_clear(pinfo->cinfo, COL_INFO); /* XXX, remove, add separator when multiple PDU */
+
+	if (tree) {
+		proto_item *ti = proto_tree_add_item(tree, proto_gadu_gadu, tvb, 0, -1, ENC_NA);
+		gadu_gadu_tree = proto_item_add_subtree(ti, ett_gadu_gadu);
+	}
+
+	pkt_type = tvb_get_letohl(tvb, offset);
+	proto_tree_add_item(gadu_gadu_tree, (pinfo->p2p_dir == P2P_DIR_RECV) ? hf_gadu_gadu_header_type_recv : hf_gadu_gadu_header_type_send, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+	proto_tree_add_item(gadu_gadu_tree, hf_gadu_gadu_header_length, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	if (pinfo->p2p_dir == P2P_DIR_RECV) {
+		switch (pkt_type) {
+			case GG_DISCONNECTING:
+				offset = dissect_gadu_gadu_disconnecting(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_DISCONNECT_ACK:
+				offset = dissect_gadu_gadu_disconnect_ack(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LOGIN_OK:
+				offset = dissect_gadu_gadu_login_ok(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LOGIN_OK80:
+				offset = dissect_gadu_gadu_login_ok80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LOGIN_FAILED:
+				offset = dissect_gadu_gadu_login_failed(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LOGIN80_FAILED:
+				offset = dissect_gadu_gadu_login80_failed(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_USER_DATA:
+				offset = dissect_gadu_gadu_user_data(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_TYPING_NOTIFY:
+				offset = dissect_gadu_gadu_typing_notify(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_RECV_MSG:
+				offset = dissect_gadu_gadu_recv_msg(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_RECV_MSG80:
+				offset = dissect_gadu_gadu_recv_msg80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_SEND_MSG_ACK:
+				/* GG_SEND_MSG_ACK is received by client */
+				offset = dissect_gadu_gadu_send_msg_ack(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_STATUS60:
+				offset = dissect_gadu_gadu_status60(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_STATUS77:
+				offset = dissect_gadu_gadu_status77(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_STATUS80:
+				offset = dissect_gadu_gadu_status80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_NOTIFY_REPLY80:
+				offset = dissect_gadu_gadu_notify_reply80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_DCC7_ID_REPLY:
+				offset = dissect_gadu_gadu_dcc7_id_reply(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_WELCOME:
+				offset = dissect_gadu_gadu_welcome(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_USERLIST_REPLY80:
+				offset = dissect_gadu_gadu_userlist_reply80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_USERLIST100_REPLY:
+				offset = dissect_gadu_gadu_userlist_reply100(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_USERLIST100_VERSION:
+				offset = dissect_gadu_gadu_userlist_version100(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_PUBDIR50_REPLY:
+				offset = dissect_gadu_gadu_pubdir50_reply(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_XML_ACTION:
+				offset = dissect_gadu_gadu_xml_action(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_STATUS:
+			case GG_PONG:
+			case GG_PING:
+			case GG_NOTIFY_REPLY:
+			case GG_USERLIST_REPLY:
+			case GG_NOTIFY_REPLY60:
+			case GG_NEED_EMAIL:
+			case GG_LOGIN_HASH_TYPE_INVALID:
+			case GG_NOTIFY_REPLY77:
+			case GG_DCC7_INFO:
+			case GG_DCC7_NEW:
+			case GG_DCC7_ACCEPT:
+			case GG_DCC7_REJECT:
+			case GG_DCC7_ID_ABORTED:
+			case GG_XML_EVENT:
+			case GG_STATUS80BETA:
+			case GG_NOTIFY_REPLY80BETA:
+			case GG_OWN_MESSAGE:
+			case GG_OWN_RESOURCE_INFO:
+			default:
+			{
+				const char *pkt_name = try_val_to_str(pkt_type, gadu_gadu_packets_type_recv);
+
+				if (pkt_name)
+					col_set_str(pinfo->cinfo, COL_INFO, pkt_name);
+				else
+					col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown recv packet: %.2x", pkt_type);
+				break;
+			}
+		}
+
+	} else {
+		switch (pkt_type) {
+			case GG_LOGIN:
+				offset = dissect_gadu_gadu_login(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LOGIN70:
+				offset = dissect_gadu_gadu_login70(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LOGIN80:
+				offset = dissect_gadu_gadu_login80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_LIST_EMPTY:
+				offset = dissect_gadu_gadu_list_empty(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_NOTIFY_FIRST:
+				offset = dissect_gadu_gadu_notify_first(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_NOTIFY_LAST:
+				offset = dissect_gadu_gadu_notify_last(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_NOTIFY105:
+				offset = dissect_gadu_gadu_notify105(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_ADD_NOTIFY:
+				offset = dissect_gadu_gadu_add_notify(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_ADD_NOTIFY105:
+				offset = dissect_gadu_gadu_add_notify105(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_REMOVE_NOTIFY:
+				offset = dissect_gadu_gadu_remove_notify(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_REMOVE_NOTIFY105:
+				offset = dissect_gadu_gadu_remove_notify105(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_PING:
+				offset = dissect_gadu_gadu_ping(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_TYPING_NOTIFY:
+				offset = dissect_gadu_gadu_typing_notify(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_SEND_MSG:
+				offset = dissect_gadu_gadu_send_msg(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_SEND_MSG80:
+				offset = dissect_gadu_gadu_send_msg80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_RECV_MSG_ACK:
+				/* GG_RECV_MSG_ACK is send by client */
+				offset = dissect_gadu_gadu_recv_msg_ack(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_NEW_STATUS:
+				offset = dissect_gadu_gadu_new_status(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_NEW_STATUS80:
+				offset = dissect_gadu_gadu_new_status80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_DCC7_ID_REQUEST:
+				offset = dissect_gadu_gadu_dcc7_id_request(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_DCC7_NEW:
+				offset = dissect_gadu_gadu_dcc7_new(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_DCC7_ID_ABORT:
+				offset = dissect_gadu_gadu_dcc7_id_abort(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_USERLIST_REQUEST80:
+				offset = dissect_gadu_gadu_userlist_request80(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_USERLIST100_REQUEST:
+				offset = dissect_gadu_gadu_userlist_request100(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_PUBDIR50_REQUEST:
+				offset = dissect_gadu_gadu_pubdir50_request(tvb, pinfo, gadu_gadu_tree, offset);
+				break;
+
+			case GG_PONG:
+			case GG_LOGIN_EXT:
+			case GG_LOGIN60:
+			case GG_USERLIST_REQUEST:
+			case GG_DCC7_INFO:
+			case GG_DCC7_ACCEPT:
+			case GG_DCC7_REJECT:
+			case GG_DCC7_ID_DUNNO1:
+			case GG_NEW_STATUS80BETA:
+			case GG_LOGIN80BETA:
+			case GG_OWN_DISCONNECT:
+			case GG_NEW_STATUS105:
+			case GG_LOGIN105:
+			default:
+			{
+				const char *pkt_name = try_val_to_str(pkt_type, gadu_gadu_packets_type_send);
+
+				if (pkt_name)
+					col_set_str(pinfo->cinfo, COL_INFO, pkt_name);
+				else
+					col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown send packet: %.2x", pkt_type);
+				break;
+			}
+		}
+	}
+
+	/* for now display rest of data as FT_BYTES. */
+	if (tvb_reported_length_remaining(tvb, offset) > 0) {
+		proto_tree_add_item(gadu_gadu_tree, hf_gadu_gadu_data, tvb, offset, -1, ENC_NA);
+	}
+
+	return tvb_captured_length(tvb);
+}
+
+static guint
+get_gadu_gadu_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb,
+                      int offset, void *data _U_)
+{
+	guint32 len = tvb_get_letohl(tvb, offset + 4);
+
+	return len + 8;
+}
+
+static int
+dissect_gadu_gadu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
+{
+	if (pinfo->srcport == pinfo->match_uint && pinfo->destport != pinfo->match_uint)
+		pinfo->p2p_dir = P2P_DIR_RECV;
+	else if (pinfo->srcport != pinfo->match_uint && pinfo->destport == pinfo->match_uint)
+		pinfo->p2p_dir = P2P_DIR_SENT;
+	else
+		return 0;
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "Gadu-Gadu");
+	col_clear(pinfo->cinfo, COL_INFO);
+
+	tcp_dissect_pdus(tvb, pinfo, tree, gadu_gadu_desegment, 8, get_gadu_gadu_pdu_len, dissect_gadu_gadu_pdu, data);
+	return tvb_captured_length(tvb);
+}
+
+void
+proto_register_gadu_gadu(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_gadu_gadu_header_type_recv,
+			{ "Packet Type", "gadu-gadu.recv",
+			  FT_UINT32, BASE_HEX, VALS(gadu_gadu_packets_type_recv), 0x0,
+			  "Packet Type (recv)", HFILL }
+		},
+		{ &hf_gadu_gadu_header_type_send,
+			{ "Packet Type", "gadu-gadu.send",
+			  FT_UINT32, BASE_HEX, VALS(gadu_gadu_packets_type_send), 0x0,
+			  "Packet Type (send)", HFILL }
+		},
+		{ &hf_gadu_gadu_header_length,
+			{ "Packet Length", "gadu-gadu.len",
+			  FT_UINT32, BASE_DEC, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_uin,
+			{ "Client UIN", "gadu-gadu.login.uin",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_hash_type,
+			{ "Login hash type", "gadu-gadu.login.hash_type",
+			  FT_UINT8, BASE_HEX, VALS(gadu_gadu_hash_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_hash,
+			{ "Login hash", "gadu-gadu.login.hash",
+			  FT_BYTES, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_status,
+			{ "Client status", "gadu-gadu.login.status",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_protocol,
+			{ "Client protocol", "gadu-gadu.login.protocol",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_version,
+			{ "Client version", "gadu-gadu.login.version",
+			  FT_STRING, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_local_ip,
+			{ "Client local IP", "gadu-gadu.login.local_ip",
+			  FT_IPv4, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login_local_port,
+			{ "Client local port", "gadu-gadu.login.local_port",
+			  FT_UINT16, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_login80_lang,
+			{ "Client language", "gadu-gadu.login80.lang",
+			  FT_STRING, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userdata_uin,
+			{ "UIN", "gadu-gadu.user_data.uin",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userdata_attr_name,
+			{ "Attribute name", "gadu-gadu.user_data.attr_name",
+			  FT_STRING, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userdata_attr_type,
+			{ "Attribute type", "gadu-gadu.user_data.attr_type",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userdata_attr_value,
+			{ "Attribute value", "gadu-gadu.user_data.attr_val",
+			  FT_STRING, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_typing_notify_type,
+			{ "Typing notify type", "gadu-gadu.typing_notify.type",
+			  FT_UINT16, BASE_HEX, VALS(gadu_gadu_typing_notify_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_typing_notify_uin,
+			{ "Typing notify recipient", "gadu-gadu.typing_notify.uin",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_uin,
+			{ "Message sender or recipient", "gadu-gadu.msg.uin",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_sender,
+			{ "Message sender", "gadu-gadu.msg.sender",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_recipient,
+			{ "Message recipient", "gadu-gadu.msg.recipient",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_seq,
+			{ "Message sequence number", "gadu-gadu.msg.seq",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_time,
+			{ "Message time", "gadu-gadu.msg.time",
+			  FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_class,
+			{ "Message class", "gadu-gadu.msg.class",
+			  FT_UINT32, BASE_HEX, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_text,
+			{ "Message text", "gadu-gadu.msg.text",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg80_offset_plain,
+			{ "Message plaintext offset", "gadu-gadu.msg80.offset_plain",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg80_offset_attr,
+			{ "Message attribute offset", "gadu-gadu.msg80.offset_attributes",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_ack_status,
+			{ "Message status", "gadu-gadu.msg_ack.status",
+			  FT_UINT32, BASE_HEX, VALS(gadu_gadu_msg_ack_status_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_ack_recipient,
+			{ "Message recipient", "gadu-gadu.msg_ack.recipient",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_msg_ack_seq,
+			{ "Message sequence number", "gadu-gadu.msg_ack.seq",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_status_uin,
+			{ "UIN", "gadu-gadu.status.uin",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_status_status,
+			{ "Status", "gadu-gadu.status.status",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_status_ip,
+			{ "IP", "gadu-gadu.status.remote_ip",
+			  FT_IPv4, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_status_port,
+			{ "Port", "gadu-gadu.status.remote_port",
+			  FT_UINT16, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_status_version,
+			{ "Version", "gadu-gadu.status.version",
+			  FT_UINT8, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_status_img_size,
+			{ "Image size", "gadu-gadu.status.image_size",
+			  FT_UINT8, BASE_DEC, NULL, 0x00,
+			  "Maximum image size in KB", HFILL }
+		},
+		{ &hf_gadu_gadu_status_descr,
+			{ "Description", "gadu-gadu.status.description",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_dcc_type,
+			{ "Direct connection type", "gadu-gadu.dcc.type",
+			  FT_UINT32, BASE_HEX, VALS(gadu_gadu_dcc_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_dcc_id,
+			{ "Direct connection id", "gadu-gadu.dcc.id",
+			  FT_BYTES, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_dcc_uin_to,
+			{ "Direct connection UIN target", "gadu-gadu.dcc.uin_to",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_dcc_uin_from,
+			{ "Direct connection UIN initiator", "gadu-gadu.dcc.uin_from",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_dcc_filename,
+			{ "Direct connection filename", "gadu-gadu.dcc.filename",
+			  FT_STRING, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_new_status_status,
+			{ "Status", "gadu-gadu.new_status.status",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_new_status_desc,
+			{ "Description", "gadu-gadu.new_status.description",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userlist_request_type,
+			{ "Request type", "gadu-gadu.userlist.request_type",
+			  FT_UINT32, BASE_HEX, VALS(gadu_gadu_userlist_request_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userlist_version,
+			{ "Userlist version", "gadu-gadu.userlist.version",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userlist_format,
+			{ "Userlist format", "gadu-gadu.userlist.format",
+			  FT_UINT8, BASE_HEX, VALS(gadu_gadu_userlist_request_format_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userlist_reply_type,
+			{ "Reply type", "gadu-gadu.userlist.reply_type",
+			  FT_UINT32, BASE_HEX, VALS(gadu_gadu_userlist_reply_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_userlist,
+			{ "Userlist XML data", "gadu-gadu.userlist",
+			  FT_BYTES, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_pubdir_request_type,
+			{ "Request type", "gadu-gadu.pubdir.request_type",
+			  FT_UINT8, BASE_HEX, VALS(gadu_gadu_pubdir_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_pubdir_request_seq,
+			{ "Request sequence", "gadu-gadu.pubdir.request_seq",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_pubdir_request_str,
+			{ "Request string", "gadu-gadu.pubdir.request_str",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_pubdir_reply_type,
+			{ "Reply type", "gadu-gadu.pubdir.reply_type",
+			  FT_UINT8, BASE_HEX, VALS(gadu_gadu_pubdir_type_vals), 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_pubdir_reply_seq,
+			{ "Reply sequence", "gadu-gadu.pubdir.reply_seq",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_pubdir_reply_str,
+			{ "Reply string", "gadu-gadu.pubdir.request_str",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_contact_uin,
+			{ "UIN", "gadu-gadu.contact.uin",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_contact_uin_str,
+			{ "UIN", "gadu-gadu.contact.uin_str",
+			  FT_STRING, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_contact_type,
+			{ "Type", "gadu-gadu.contact.type",
+			  FT_UINT8, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_welcome_seed,
+			{ "Seed", "gadu-gadu.welcome.seed",
+			  FT_UINT32, BASE_HEX, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_gadu_gadu_data,
+			{ "Packet Data", "gadu-gadu.data",
+			  FT_BYTES, BASE_NONE, NULL, 0x0,
+			  NULL, HFILL }
+		},
+	};
+
+	static gint *ett[] = {
+		&ett_gadu_gadu,
+		&ett_gadu_gadu_contact
+	};
+
+	module_t *gadu_gadu_module;
+
+	proto_gadu_gadu = proto_register_protocol("Gadu-Gadu Protocol", "Gadu-Gadu", "gadu-gadu");
+
+	gadu_gadu_module = prefs_register_protocol(proto_gadu_gadu, NULL);
+	prefs_register_bool_preference(gadu_gadu_module, "desegment",
+			"Reassemble Gadu-Gadu messages spanning multiple TCP segments",
+			"Whether the Gadu-Gadu dissector should reassemble messages spanning multiple TCP segments."
+			"To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
+			&gadu_gadu_desegment);
+
+	proto_register_field_array(proto_gadu_gadu, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	gadu_gadu_handle = register_dissector("gadugadu", dissect_gadu_gadu, proto_gadu_gadu);
+}
+
+void
+proto_reg_handoff_gadu_gadu(void)
+{
+	dissector_add_uint_with_preference("tcp.port", TCP_PORT_GADU_GADU, gadu_gadu_handle);
+
+	xml_handle = find_dissector_add_dependency("xml", proto_gadu_gadu);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */