/* packet-gtp.c
- *
+ *
* Routines for GTP dissection
* Copyright 2001, Michal Melerowicz <michal.melerowicz@nokia.com>
* Nicolas Balkota <balkota@mac.com>
*
- * $Id: packet-gtp.c,v 1.25 2002/04/08 20:30:52 gram Exp $
+ * $Id: packet-gtp.c,v 1.53 2003/02/07 19:57:19 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include <stdlib.h>
#include <string.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-
#include <glib.h>
-#ifdef NEED_SNPRINTF_H
-# include "snprintf.h"
-#endif
-
#include <epan/packet.h>
+#include "packet-gtp.h"
#include "packet-ipv6.h"
+#include "packet-ppp.h"
#include "prefs.h"
-/*
+/*
* All data related to GTP v0 (GPRS) uses "gtpv0" or "GTPv0",
* all data related to GTP v1 (UMTS) uses "gtpv1" or "GTPv1",
- * if there is any gtp alone statement it means that this data is common
+ * if there is any gtp alone statement it means that this data is common
* for both: GPRS and UMTS
*/
#define GTPv0_HDR_LENGTH 20
#define GTPv1_HDR_LENGTH 12
+#define GTP_PRIME_HDR_LENGTH 6
/* for function checking compliance with ETSI */
-#define MANDATORY 1
-#define OPTIONAL 2
-#define CONDITIONAL 4
+#define GTP_MANDATORY 1
+#define GTP_OPTIONAL 2
+#define GTP_CONDITIONAL 4
static int g_gtpv0_port = GTPv0_PORT;
static int g_gtpv1c_port = GTPv1C_PORT;
void proto_reg_handoff_gtp(void);
+static int proto_gtp = -1;
static int proto_gtpv0 = -1;
static int proto_gtpv1 = -1;
static int hf_gtpv0_flags_ver = -1;
static int hf_gtpv0_flags_pt = -1;
static int hf_gtpv0_flags_spare = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_flags_e = -1;
static int hf_gtpv0_flags_s = -1;
static int hf_gtpv0_flags_pn = -1;
+#endif
static int hf_gtpv0_flags_snn = -1;
static int hf_gtpv0_message_type = -1;
static int hf_gtpv0_length = -1;
static int hf_gtpv0_seq_number = -1;
static int hf_gtpv0_flow_label = -1;
static int hf_gtpv0_sndcp_number = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_npdu_number = -1;
+#endif
static int hf_gtpv0_tid = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_teid = -1;
static int hf_gtpv0_next = -1;
+#endif
static int hf_gtpv0_cause = -1;
static int hf_gtpv0_imsi = -1;
static int hf_gtpv0_rai_mcc = -1;
static int hf_gtpv0_recovery = -1;
static int hf_gtpv0_sel_mode = -1;
static int hf_gtpv0_ext_flow_label = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_teid_data = -1; /* 3G */
+#endif
static int hf_gtpv0_flow_sig = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_teid_cp = -1; /* 3G */
+#endif
static int hf_gtpv0_nsapi = -1;
static int hf_gtpv0_flow_ii = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_teid_ii = -1; /* 3G */
+#endif
static int hf_gtpv0_ms_reason = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_tear_ind = -1; /* 3G */
static int hf_gtpv0_ranap_cause = -1; /* 3G */
static int hf_gtpv0_rab_gtpu_dn = -1; /* 3G */
static int hf_gtpv0_chrg_char_r = -1; /* 3G */
static int hf_gtpv0_trace_ref = -1; /* 3G */
static int hf_gtpv0_trace_type = -1; /* 3G */
+#endif
static int hf_gtpv0_tr_comm = -1; /* charging */
static int hf_gtpv0_chrg_id = -1;
static int hf_gtpv0_user_ipv4 = -1;
static int hf_gtpv0_gsn_addr_type = -1;
static int hf_gtpv0_gsn_addr_len = -1;
static int hf_gtpv0_msisdn = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv0_qos_al_ret_priority = -1;
static int hf_gtpv0_qos_traf_class = -1;
static int hf_gtpv0_qos_del_order = -1;
static int hf_gtpv0_qos_guar_dl = -1;
static int hf_gtpv0_rnc_ipv4 = -1;
static int hf_gtpv0_rnc_ipv6 = -1;
+#endif
static int hf_gtpv0_chrg_ipv4 = -1;
static int hf_gtpv0_chrg_ipv6 = -1;
static int hf_gtpv0_node_ipv4 = -1;
static int hf_gtpv1_flags_e = -1;
static int hf_gtpv1_flags_s = -1;
static int hf_gtpv1_flags_pn = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv1_flags_snn = -1;
+#endif
static int hf_gtpv1_message_type = -1;
static int hf_gtpv1_length = -1;
static int hf_gtpv1_seq_number = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv1_flow_label = -1;
static int hf_gtpv1_sndcp_number = -1;
+#endif
static int hf_gtpv1_npdu_number = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv1_tid = -1;
+#endif
static int hf_gtpv1_teid = -1;
static int hf_gtpv1_next = -1;
static int hf_gtpv1_cause = -1;
static int hf_gtpv1_ms_valid = -1;
static int hf_gtpv1_recovery = -1;
static int hf_gtpv1_sel_mode = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv1_ext_flow_label = -1;
+#endif
static int hf_gtpv1_teid_data = -1; /* 3G */
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv1_flow_sig = -1;
+#endif
static int hf_gtpv1_teid_cp = -1; /* 3G */
static int hf_gtpv1_nsapi = -1;
+#ifdef GTP_UNUSED_HANDLES
static int hf_gtpv1_flow_ii = -1;
+#endif
static int hf_gtpv1_teid_ii = -1; /* 3G */
static int hf_gtpv1_ms_reason = -1;
static int hf_gtpv1_tear_ind = -1; /* 3G */
static int hf_gtpv1_qos_traf_handl_prio = -1;
static int hf_gtpv1_qos_guar_ul = -1;
static int hf_gtpv1_qos_guar_dl = -1;
+static int hf_gtpv1_tft_code = -1;
+static int hf_gtpv1_tft_spare = -1;
+static int hf_gtpv1_tft_number = -1;
+static int hf_gtpv1_tft_eval = -1;
static int hf_gtpv1_rnc_ipv4 = -1;
static int hf_gtpv1_rnc_ipv6 = -1;
static int hf_gtpv1_chrg_ipv4 = -1;
static gint ett_gtp_gsn_addr = -1;
static gint ett_gtp_tft = -1;
static gint ett_gtp_tft_pf = -1;
+static gint ett_gtp_tft_flags = -1;
static gint ett_gtp_rab_setup = -1;
static gint ett_gtp_hdr_list = -1;
static gint ett_gtp_chrg_addr = -1;
static int gtpv0_port = 0;
static int gtpv1c_port = 0;
static int gtpv1u_port = 0;
-static gboolean ppp_reorder = TRUE;
/* Definition of flags masks */
#define GTP_VER_MASK 0xE0
#define GTP_MASK_CHRG_CHAR_H 0x0100
#define GTP_MASK_CHRG_CHAR_R 0x00FF
+/* Traffic Flow Templates mask */
+#define GTPv1_TFT_CODE_MASK 0xE0
+#define GTPv1_TFT_SPARE_MASK 0x10
+#define GTPv1_TFT_NUMBER_MASK 0x0F
/* Definition of GSN Address masks */
#define GTP_EXT_GSN_ADDR_TYPE_MASK 0xC0
#define GTP_EXT_SEL_MODE 0x0F
#define GTP_EXT_16 0x10
-#define GTP_EXT_FLOW_LABEL 0x10
+#define GTP_EXT_FLOW_LABEL 0x10
#define GTP_EXT_TEID 0x10 /* 0xFF10 3G */
#define GTP_EXT_17 0x11
-#define GTP_EXT_FLOW_SIG 0x11
+#define GTP_EXT_FLOW_SIG 0x11
#define GTP_EXT_TEID_CP 0x11 /* 0xFF11 3G */
#define GTP_EXT_18 0x12
-#define GTP_EXT_FLOW_II 0x12
+#define GTP_EXT_FLOW_II 0x12
#define GTP_EXT_TEID_II 0x12 /* 0xFF12 3G*/
#define GTP_EXT_19 0x13
static const value_string gtp_val[] = {
{ GTP_EXT_CAUSE, "Cause of operation" },
- { GTP_EXT_IMSI, "IMSI " },
+ { GTP_EXT_IMSI, "IMSI" },
{ GTP_EXT_RAI, "Routing Area Identity" },
{ GTP_EXT_TLLI, "Temporary Logical Link Identity" },
{ GTP_EXT_PTMSI, "Packet TMSI" },
{ GTP_EXT_16, "Flow label data I" },
{ GTP_EXT_FLOW_LABEL, "Flow label data I" },
{ GTP_EXT_TEID, "Tunnel Endpoint Identifier Data I" }, /* 3G */
-
+
{ GTP_EXT_17, "Flow label signalling" },
{ GTP_EXT_FLOW_SIG, "Flow label signalling" },
{ GTP_EXT_TEID_CP, "Tunnel Endpoint Identifier Data Control Plane" }, /* 3G */
-
+
{ GTP_EXT_18, "Flow label data II" },
{ GTP_EXT_FLOW_II, "Flow label data II" },
{ GTP_EXT_TEID_II, "Tunnel Endpoint Identifier Data II" }, /* 3G */
-
+
{ GTP_EXT_19, "MS not reachable reason" },
{ GTP_EXT_MS_REASON, "MS not reachable reason" },
{ GTP_EXT_TEAR_IND, "Teardown ID" }, /* 3G */
-
+
{ GTP_EXT_NSAPI, "NSAPI" }, /* 3G */
{ GTP_EXT_RANAP_CAUSE, "RANAP cause" }, /* 3G */
{ GTP_EXT_RAB_CNTXT, "RAB context" }, /* 3G */
{ GTP_EXT_RP_SMS, "Radio Priority for MO SMS" }, /* 3G */
{ GTP_EXT_RP, "Radio Priority" }, /* 3G */
- { GTP_EXT_PKT_FLOW_ID, "Packet Flow ID " }, /* 3G */
+ { GTP_EXT_PKT_FLOW_ID, "Packet Flow ID" }, /* 3G */
{ GTP_EXT_CHRG_CHAR, "Charging characteristics" }, /* 3G */
{ GTP_EXT_TRACE_REF, "Trace references" }, /* 3G */
{ GTP_EXT_TRACE_TYPE, "Trace type" }, /* 3G */
{ GTPv1_EXT_MS_REASON, "MS not reachable reason" }, /* 3G */
{ GTP_EXT_TR_COMM, "Packet transfer command" }, /* charging */
{ GTP_EXT_CHRG_ID, "Charging ID" },
- { GTP_EXT_USER_ADDR, "End user address " },
+ { GTP_EXT_USER_ADDR, "End user address" },
{ GTP_EXT_MM_CNTXT, "MM context" },
{ GTP_EXT_PDP_CNTXT, "PDP context" },
{ GTP_EXT_APN, "Access Point Name" },
{ GTP_EXT_TARGET_ID, "Target (RNC) identification" }, /* 3G */
{ GTP_EXT_UTRAN_CONT, "UTRAN transparent field" }, /* 3G */
{ GTP_EXT_RAB_SETUP, "RAB setup information" }, /* 3G */
- { GTP_EXT_HDR_LIST, "Extension Header Types List " }, /* 3G */
- { GTP_EXT_TRIGGER_ID, "Trigger Id " }, /* 3G */
- { GTP_EXT_OMC_ID, "OMC Identity " }, /* 3G */
+ { GTP_EXT_HDR_LIST, "Extension Header Types List" }, /* 3G */
+ { GTP_EXT_TRIGGER_ID, "Trigger Id" }, /* 3G */
+ { GTP_EXT_OMC_ID, "OMC Identity" }, /* 3G */
{ GTP_EXT_REL_PACK, "Sequence numbers of released packets IE" }, /* charging */
{ GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE" }, /* charging */
{ GTP_EXT_CHRG_ADDR, "Charging Gateway address" },
{ GTP_EXT_DATA_REQ, "Data record packet" }, /* charging */
{ GTP_EXT_DATA_RESP, "Requests responded" }, /* charging */
{ GTP_EXT_NODE_ADDR, "Address of recommended node" }, /* charging */
- { GTP_EXT_PRIV_EXT, "Private Extension " },
+ { GTP_EXT_PRIV_EXT, "Private Extension" },
{ 0, NULL }
};
/* GPRS: 9.60 v7.6.0, page 37
- * UMTS: 29.060 v4.0, page 45
+ * UMTS: 29.060 v4.0, page 45
*/
static const value_string cause_type[] = {
{ 0, "Request IMSI" },
{ 0x07, "Up to 64 000 oct/s" },
{ 0x08, "Up to 128 000 oct/s" },
{ 0x09, "Up to 256 000 oct/s" },
-/* QoS Peak throughput classes from 0x0A to 0x0F (from 10 to 15) are subscribed */
+/* QoS Peak throughput classes from 0x0A to 0x0F (from 10 to 15) are subscribed */
{ 0x0A, "Reserved" },
{ 0x0B, "Reserved" },
{ 0x0C, "Reserved" },
static const value_string qos_max_sdu_size[] = {
{ 0x00, "Subscribed maximum SDU size (in MS to network direction" },
- /* For values from 0x01 to 0x96 (from 1 to 150), use a granularity of 10 octets */
+ /* For values from 0x01 to 0x96 (from 1 to 150), use a granularity of 10 octets */
{ 0x97, "1502 octets" },
{ 0x98, "1510 octets" },
{ 0x99, "1520 octets" },
{ 0x07, "1/10 = 1x10^-1" },
{ 0x0F, "Reserved" }, /* All other values are reserved */
{ 0, NULL }
-};
+};
static const value_string qos_traf_handl_prio[] = {
{ 0x00, "Subscribed traffic handling priority (in MS to network direction)" },
};
static const value_string sel_mode_type[] = {
- { 0, "MS or network provided APN, subscriber verified" },
+ { 0, "MS or network provided APN, subscribed verified" },
{ 1, "MS provided APN, subscription not verified" },
{ 2, "Network provided APN, subscription not verified" },
{ 3, "For future use (Network provided APN, subscription not verified" },/* Shall not be sent. If received, shall be sent as value 2 */
{ 0x30, "Configuration change command" },
{ 0x31, "Configuration change ack" },
{ 0x33, "Configuration change reject" },
-
+
{ 0x2E, "Assignment command" },
{ 0x29, "Assignment complete" },
{ 0x2F, "Assigment failure" },
{ 0x10, "Channel mode modify" },
{ 0x12, "RR status" },
{ 0x17, "Channel mode modify ack" },
- { 0x14, "Frequency redefinition " },
+ { 0x14, "Frequency redefinition" },
{ 0x15, "Measurement report" },
{ 0x16, "Classmark change" },
{ 0x13, "Classmark enquiry" },
{ 0, NULL }
};
-static const value_string mm_cc_mess[] = {
+static const value_string mm_cc_mess[] = {
{ 0x00, "escape to nationally specific" },
/*{ 0 x 0 0, "- - - Call establishment messages:" },*/
{ 0x01, "ALERTING" },
{ 7, "Abnormal" },
{ 0, NULL }
};
-
+
static dissector_handle_t ip_handle;
+static dissector_handle_t ipv6_handle;
static dissector_handle_t ppp_handle;
+static dissector_handle_t data_handle;
static int decode_gtp_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_imsi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_unknown (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
typedef struct _gtp_opt {
- int optcode;
+ int optcode;
/* char *name; */
int (*decode)(tvbuff_t *, int, packet_info *, proto_tree *);
} gtp_opt_t;
guint32 teid;
} _gtpv1_hdr;
-struct gcdr_ { /* GCDR 118B */
+static struct gcdr_ { /* GCDR 118B */
guint8 imsi[8];
guint32 ggsnaddr;
guint32 chrgid;
guint8 qos_neg[3];
} change_t;
-struct _scdr { /* SCDR 277B */
+static struct _scdr { /* SCDR 277B */
guint16 len;
guint8 netini;
guint8 anon;
guint8 omit[8];
} mmchange_t;
-struct _mcdr { /* MCDR 147B */
+static struct _mcdr { /* MCDR 147B */
guint16 len;
guint8 imsilen;
guint8 imsi[8];
guint32 seqno;
} mcdr;
-struct _socdr { /* SOCDR 80B */
+static struct _socdr { /* SOCDR 80B */
guint16 len;
guint8 imsilen;
guint8 imsi[8];
} socdr;
-struct _stcdr { /* STCDR 79B */
+static struct _stcdr { /* STCDR 79B */
guint16 len;
guint8 imsilen;
guint8 imsi[8];
guint32 time2;
guint16 smsres;
} stcdr;
-
- guint8 gtp_version = 0;
- char *yesno[] = { "False", "True" };
-
+
+static guint8 gtp_version = 0;
+static char *yesno[] = { "False", "True" };
+
static void
col_append_str_gtp(column_info *cinfo, gint el, gchar *proto_name) {
-
+
int i;
int max_len;
gchar _tmp[COL_MAX_LEN];
for (i = 0; i < cinfo->num_cols; i++) {
if (cinfo->fmt_matx[i][el]) {
if (cinfo->col_data[i] != cinfo->col_buf[i]) {
-
+
strncpy(cinfo->col_buf[i], cinfo->col_data[i], max_len);
cinfo->col_buf[i][max_len - 1] = '\0';
}
-
+
_tmp[0] = '\0';
strcat(_tmp, proto_name);
strcat(_tmp, " <");
static gchar *
id_to_str(const guint8 *ad) {
-
+
static gchar *str[17];
gchar *p;
guint8 bits8to5, bits4to1, i;
for (;;) {
bits8to5 = (ad[i] >> 4) & 0x0F;
bits4to1 = ad[i] & 0x0F;
- if (bits8to5 < 0xA) *--p = hex_digits[bits8to5];
+ if (bits8to5 < 0xA) *--p = hex_digits[bits8to5];
if (bits4to1 < 0xA) *--p = hex_digits[bits4to1];
if (i == 0) break;
i--;
return p;
}
+static gchar *
+imsi_to_str(const guint8 *ad) {
+
+ static gchar *str[16];
+ gchar *p;
+ guint8 i, j = 0;
+
+ p = (gchar *)&str[0];
+ for (i=0;i<8;i++) {
+ if ((ad[i] & 0x0F) <= 9) p[j++] = (ad[i] & 0x0F) + 0x30;
+ if (((ad[i] >> 4) & 0x0F) <= 9) p[j++] = ((ad[i] >> 4) & 0x0F) + 0x30;
+ }
+ p[j] = 0;
+
+ return p;
+}
+
static gchar *
msisdn_to_str(const guint8 *ad, int len) {
-
+
static gchar *str[17];
gchar *p;
guint8 bits8to5, bits4to1, i;
return (gchar *)&str[0];
}
-gchar *
+static gchar *
time_int_to_str (guint32 time)
{
return abs_time_to_str (&nstime);
}
-gchar *
+static gchar *
rel_time_int_to_str (guint32 time)
{
return rel_time_to_str (&nstime);
}
-/* Next definitions and function check_field_presence checks if given field
- * in GTP packet is compliant with ETSI
+/* Next definitions and function check_field_presence checks if given field
+ * in GTP packet is compliant with ETSI
*/
typedef struct _header {
guint8 code;
} _gtp_mess_items;
/* ---------------------
- * GPRS messages
+ * GPRS messages
* ---------------------*/
static _gtp_mess_items gprs_mess_items[] = {
{
- GTP_MSG_ECHO_REQ, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ GTP_MSG_ECHO_REQ, {
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_ECHO_RESP, {
- { GTP_EXT_RECOVER, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_RECOVER, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
},
{
GTP_MSG_NODE_ALIVE_REQ, {
- { GTP_EXT_NODE_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_NODE_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_NODE_ALIVE_RESP, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_REDIR_REQ, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_NODE_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_NODE_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_REDIR_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
-{
+{
GTP_MSG_CREATE_PDP_REQ, {
- { GTP_EXT_QOS_GPRS, MANDATORY },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_SEL_MODE, MANDATORY },
- { GTP_EXT_FLOW_LABEL, MANDATORY },
- { GTP_EXT_FLOW_SIG, MANDATORY },
- { GTP_EXT_MSISDN, MANDATORY },
- { GTP_EXT_USER_ADDR, MANDATORY },
- { GTP_EXT_APN, MANDATORY },
- { GTP_EXT_PROTO_CONF, OPTIONAL },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_QOS_GPRS, GTP_MANDATORY },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_SEL_MODE, GTP_MANDATORY },
+ { GTP_EXT_FLOW_LABEL, GTP_MANDATORY },
+ { GTP_EXT_FLOW_SIG, GTP_MANDATORY },
+ { GTP_EXT_MSISDN, GTP_MANDATORY },
+ { GTP_EXT_USER_ADDR, GTP_MANDATORY },
+ { GTP_EXT_APN, GTP_MANDATORY },
+ { GTP_EXT_PROTO_CONF, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
-{
+{
GTP_MSG_CREATE_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_QOS_GPRS, CONDITIONAL },
- { GTP_EXT_REORDER, CONDITIONAL },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_FLOW_LABEL, CONDITIONAL },
- { GTP_EXT_FLOW_SIG, CONDITIONAL },
- { GTP_EXT_CHRG_ID, CONDITIONAL },
- { GTP_EXT_USER_ADDR, CONDITIONAL },
- { GTP_EXT_PROTO_CONF, OPTIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_CHRG_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_QOS_GPRS, GTP_CONDITIONAL },
+ { GTP_EXT_REORDER, GTP_CONDITIONAL },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL },
+ { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ID, GTP_CONDITIONAL },
+ { GTP_EXT_USER_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_PROTO_CONF, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
-{
+{
GTP_MSG_UPDATE_PDP_REQ, {
- { GTP_EXT_QOS_GPRS, MANDATORY },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_FLOW_LABEL, MANDATORY },
- { GTP_EXT_FLOW_SIG, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_QOS_GPRS, GTP_MANDATORY },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_FLOW_LABEL, GTP_MANDATORY },
+ { GTP_EXT_FLOW_SIG, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 },
}
},
{
GTP_MSG_UPDATE_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_QOS_GPRS, CONDITIONAL },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_FLOW_LABEL, CONDITIONAL },
- { GTP_EXT_FLOW_SIG, CONDITIONAL },
- { GTP_EXT_CHRG_ID, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_CHRG_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_QOS_GPRS, GTP_CONDITIONAL },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL },
+ { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ID, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DELETE_PDP_REQ, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DELETE_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 },
}
},
{
GTP_MSG_CREATE_AA_PDP_REQ, {
- { GTP_EXT_QOS_GPRS, MANDATORY },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_SEL_MODE, MANDATORY },
- { GTP_EXT_FLOW_LABEL, MANDATORY },
- { GTP_EXT_FLOW_SIG, MANDATORY },
- { GTP_EXT_USER_ADDR, MANDATORY },
- { GTP_EXT_APN, MANDATORY },
- { GTP_EXT_PROTO_CONF, OPTIONAL },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_QOS_GPRS, GTP_MANDATORY },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_SEL_MODE, GTP_MANDATORY },
+ { GTP_EXT_FLOW_LABEL, GTP_MANDATORY },
+ { GTP_EXT_FLOW_SIG, GTP_MANDATORY },
+ { GTP_EXT_USER_ADDR, GTP_MANDATORY },
+ { GTP_EXT_APN, GTP_MANDATORY },
+ { GTP_EXT_PROTO_CONF, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
- GTP_MSG_CREATE_AA_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_QOS_GPRS, CONDITIONAL },
- { GTP_EXT_REORDER, CONDITIONAL },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_FLOW_LABEL, CONDITIONAL },
- { GTP_EXT_FLOW_SIG, CONDITIONAL },
- { GTP_EXT_CHRG_ID, CONDITIONAL },
- { GTP_EXT_USER_ADDR, CONDITIONAL },
- { GTP_EXT_PROTO_CONF, OPTIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_CHRG_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ GTP_MSG_CREATE_AA_PDP_RESP, {
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_QOS_GPRS, GTP_CONDITIONAL },
+ { GTP_EXT_REORDER, GTP_CONDITIONAL },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL },
+ { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ID, GTP_CONDITIONAL },
+ { GTP_EXT_USER_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_PROTO_CONF, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DELETE_AA_PDP_REQ, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DELETE_AA_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_ERR_IND, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_REQ, {
- { GTP_EXT_USER_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_USER_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
-{
+{
GTP_MSG_PDU_NOTIFY_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_REQ, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_USER_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_USER_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SEND_ROUT_INFO_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SEND_ROUT_INFO_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_MAP_CAUSE, OPTIONAL },
- { GTP_EXT_MS_REASON, OPTIONAL },
- { GTP_EXT_GSN_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL },
+ { GTP_EXT_MS_REASON, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FAIL_REP_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FAIL_REP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_MAP_CAUSE, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_MS_PRESENT_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_MS_PRESENT_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_IDENT_REQ, {
- { GTP_EXT_RAI, MANDATORY },
- { GTP_EXT_PTMSI, MANDATORY },
- { GTP_EXT_PTMSI_SIG, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_RAI, GTP_MANDATORY },
+ { GTP_EXT_PTMSI, GTP_MANDATORY },
+ { GTP_EXT_PTMSI_SIG, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_IDENT_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_AUTH_TRI, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_AUTH_TRI, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SGSN_CNTXT_REQ, {
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_RAI, MANDATORY },
- { GTP_EXT_TLLI, MANDATORY },
- { GTP_EXT_PTMSI_SIG, OPTIONAL },
- { GTP_EXT_MS_VALID, OPTIONAL },
- { GTP_EXT_FLOW_SIG, MANDATORY },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_RAI, GTP_MANDATORY },
+ { GTP_EXT_TLLI, GTP_MANDATORY },
+ { GTP_EXT_PTMSI_SIG, GTP_OPTIONAL },
+ { GTP_EXT_MS_VALID, GTP_OPTIONAL },
+ { GTP_EXT_FLOW_SIG, GTP_MANDATORY },
{ 0, 0 }
}
},
{
GTP_MSG_SGSN_CNTXT_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_FLOW_SIG, CONDITIONAL },
- { GTP_EXT_MM_CNTXT, CONDITIONAL },
- { GTP_EXT_PDP_CNTXT, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL },
+ { GTP_EXT_MM_CNTXT, GTP_CONDITIONAL },
+ { GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SGSN_CNTXT_ACK, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_FLOW_II, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_FLOW_II, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DATA_TRANSF_REQ, {
- { GTP_EXT_TR_COMM, MANDATORY },
- { GTP_EXT_DATA_REQ, CONDITIONAL },
- { GTP_EXT_REL_PACK, CONDITIONAL },
- { GTP_EXT_CAN_PACK, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_TR_COMM, GTP_MANDATORY },
+ { GTP_EXT_DATA_REQ, GTP_CONDITIONAL },
+ { GTP_EXT_REL_PACK, GTP_CONDITIONAL },
+ { GTP_EXT_CAN_PACK, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DATA_TRANSF_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_DATA_RESP, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_DATA_RESP, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
};
/* -----------------------------
- * UMTS messages
+ * UMTS messages
* -----------------------------*/
static _gtp_mess_items umts_mess_items[] = {
{
- GTP_MSG_ECHO_REQ, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ GTP_MSG_ECHO_REQ, {
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_ECHO_RESP, {
- { GTP_EXT_RECOVER, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_RECOVER, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
},
{
GTP_MSG_NODE_ALIVE_REQ, {
- { GTP_EXT_NODE_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_NODE_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_NODE_ALIVE_RESP, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_REDIR_REQ, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_NODE_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_NODE_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
},
{
GTP_MSG_CREATE_PDP_REQ, {
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_SEL_MODE, CONDITIONAL },
- { GTP_EXT_TEID, MANDATORY },
- { GTP_EXT_TEID_CP, CONDITIONAL },
- { GTP_EXT_NSAPI, MANDATORY },
- { GTP_EXT_NSAPI, CONDITIONAL },
- { GTP_EXT_CHRG_CHAR, OPTIONAL },
- { GTP_EXT_TRACE_REF, OPTIONAL },
- { GTP_EXT_TRACE_TYPE, OPTIONAL },
- { GTP_EXT_USER_ADDR, CONDITIONAL },
- { GTP_EXT_APN, CONDITIONAL },
- { GTP_EXT_PROTO_CONF, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_MSISDN, CONDITIONAL },
- { GTP_EXT_QOS_UMTS, MANDATORY },
- { GTP_EXT_TFT, CONDITIONAL },
- { GTP_EXT_TRIGGER_ID, OPTIONAL },
- { GTP_EXT_OMC_ID, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_SEL_MODE, GTP_CONDITIONAL },
+ { GTP_EXT_TEID, GTP_MANDATORY },
+ { GTP_EXT_TEID_CP, GTP_CONDITIONAL },
+ { GTP_EXT_NSAPI, GTP_MANDATORY },
+ { GTP_EXT_NSAPI, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_CHAR, GTP_OPTIONAL },
+ { GTP_EXT_TRACE_REF, GTP_OPTIONAL },
+ { GTP_EXT_TRACE_TYPE, GTP_OPTIONAL },
+ { GTP_EXT_USER_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_APN, GTP_CONDITIONAL },
+ { GTP_EXT_PROTO_CONF, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_MSISDN, GTP_CONDITIONAL },
+ { GTP_EXT_QOS_UMTS, GTP_MANDATORY },
+ { GTP_EXT_TFT, GTP_CONDITIONAL },
+ { GTP_EXT_TRIGGER_ID, GTP_OPTIONAL },
+ { GTP_EXT_OMC_ID, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_CREATE_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_REORDER, CONDITIONAL },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_TEID, CONDITIONAL },
- { GTP_EXT_TEID_CP, CONDITIONAL },
- { GTP_EXT_CHRG_ID, CONDITIONAL },
- { GTP_EXT_USER_ADDR, CONDITIONAL },
- { GTP_EXT_PROTO_CONF, OPTIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_QOS_UMTS, CONDITIONAL },
- { GTP_EXT_CHRG_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_REORDER, GTP_CONDITIONAL },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_TEID, GTP_CONDITIONAL },
+ { GTP_EXT_TEID_CP, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ID, GTP_CONDITIONAL },
+ { GTP_EXT_USER_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_PROTO_CONF, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_QOS_UMTS, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{ /* checked, SGSN -> GGSN */
GTP_MSG_UPDATE_PDP_REQ, {
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_TEID, MANDATORY },
- { GTP_EXT_TEID_CP, CONDITIONAL },
- { GTP_EXT_NSAPI, MANDATORY },
- { GTP_EXT_TRACE_REF, OPTIONAL },
- { GTP_EXT_TRACE_TYPE, OPTIONAL },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_QOS_UMTS, MANDATORY },
- { GTP_EXT_TFT, OPTIONAL },
- { GTP_EXT_TRIGGER_ID, OPTIONAL },
- { GTP_EXT_OMC_ID, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_TEID, GTP_MANDATORY },
+ { GTP_EXT_TEID_CP, GTP_CONDITIONAL },
+ { GTP_EXT_NSAPI, GTP_MANDATORY },
+ { GTP_EXT_TRACE_REF, GTP_OPTIONAL },
+ { GTP_EXT_TRACE_TYPE, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_QOS_UMTS, GTP_MANDATORY },
+ { GTP_EXT_TFT, GTP_OPTIONAL },
+ { GTP_EXT_TRIGGER_ID, GTP_OPTIONAL },
+ { GTP_EXT_OMC_ID, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{ /* checked, GGSN -> SGSN */
GTP_MSG_UPDATE_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_RECOVER, OPTIONAL },
- { GTP_EXT_TEID, CONDITIONAL },
- { GTP_EXT_TEID_CP, CONDITIONAL },
- { GTP_EXT_CHRG_ID, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_QOS_UMTS, CONDITIONAL },
- { GTP_EXT_CHRG_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_RECOVER, GTP_OPTIONAL },
+ { GTP_EXT_TEID, GTP_CONDITIONAL },
+ { GTP_EXT_TEID_CP, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ID, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_QOS_UMTS, GTP_CONDITIONAL },
+ { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DELETE_PDP_REQ, {
- { GTP_EXT_TEAR_IND, CONDITIONAL },
- { GTP_EXT_NSAPI, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_TEAR_IND, GTP_CONDITIONAL },
+ { GTP_EXT_NSAPI, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_DELETE_PDP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_ERR_IND, {
- { GTP_EXT_TEID, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_TEID, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_TEID_CP, MANDATORY },
- { GTP_EXT_USER_ADDR, MANDATORY },
- { GTP_EXT_APN, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_TEID_CP, GTP_MANDATORY },
+ { GTP_EXT_USER_ADDR, GTP_MANDATORY },
+ { GTP_EXT_APN, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_REQ, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_TEID_CP, MANDATORY },
- { GTP_EXT_USER_ADDR, MANDATORY },
- { GTP_EXT_APN, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_TEID_CP, GTP_MANDATORY },
+ { GTP_EXT_USER_ADDR, GTP_MANDATORY },
+ { GTP_EXT_APN, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SUPP_EXT_HDR, {
- { GTP_EXT_HDR_LIST, MANDATORY },
+ { GTP_EXT_HDR_LIST, GTP_MANDATORY },
{ 0, 0 }
}
},
{
GTP_MSG_SEND_ROUT_INFO_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SEND_ROUT_INFO_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_MAP_CAUSE, OPTIONAL },
- { GTPv1_EXT_MS_REASON, OPTIONAL },
- { GTP_EXT_GSN_ADDR, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL },
+ { GTPv1_EXT_MS_REASON, GTP_OPTIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FAIL_REP_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FAIL_REP_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_MAP_CAUSE, OPTIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_MS_PRESENT_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_MS_PRESENT_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_IDENT_REQ, {
- { GTP_EXT_RAI, MANDATORY },
- { GTP_EXT_PTMSI, MANDATORY },
- { GTP_EXT_PTMSI_SIG, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_RAI, GTP_MANDATORY },
+ { GTP_EXT_PTMSI, GTP_MANDATORY },
+ { GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_IDENT_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_AUTH_TRI, CONDITIONAL },
- { GTP_EXT_AUTH_QUI, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_AUTH_TRI, GTP_CONDITIONAL },
+ { GTP_EXT_AUTH_QUI, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SGSN_CNTXT_REQ, {
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_RAI, MANDATORY },
- { GTP_EXT_TLLI, CONDITIONAL },
- { GTP_EXT_PTMSI, CONDITIONAL },
- { GTP_EXT_PTMSI_SIG, CONDITIONAL },
- { GTP_EXT_MS_VALID, OPTIONAL },
- { GTP_EXT_TEID_CP, MANDATORY },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_RAI, GTP_MANDATORY },
+ { GTP_EXT_TLLI, GTP_CONDITIONAL },
+ { GTP_EXT_PTMSI, GTP_CONDITIONAL },
+ { GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL },
+ { GTP_EXT_MS_VALID, GTP_OPTIONAL },
+ { GTP_EXT_TEID_CP, GTP_MANDATORY },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SGSN_CNTXT_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_IMSI, CONDITIONAL },
- { GTP_EXT_TEID_CP, CONDITIONAL },
- { GTP_EXT_RP_SMS, OPTIONAL },
- { GTP_EXT_RP, OPTIONAL },
- { GTP_EXT_PKT_FLOW_ID, OPTIONAL },
- { GTP_EXT_MM_CNTXT, CONDITIONAL },
- { GTP_EXT_PDP_CNTXT, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_IMSI, GTP_CONDITIONAL },
+ { GTP_EXT_TEID_CP, GTP_CONDITIONAL },
+ { GTP_EXT_RP_SMS, GTP_OPTIONAL },
+ { GTP_EXT_RP, GTP_OPTIONAL },
+ { GTP_EXT_PKT_FLOW_ID, GTP_OPTIONAL },
+ { GTP_EXT_MM_CNTXT, GTP_CONDITIONAL },
+ { GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_SGSN_CNTXT_ACK, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_TEID_II, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_TEID_II, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FORW_RELOC_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_TEID_CP, MANDATORY },
- { GTP_EXT_RANAP_CAUSE, MANDATORY },
- { GTP_EXT_MM_CNTXT, MANDATORY },
- { GTP_EXT_PDP_CNTXT, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, MANDATORY },
- { GTP_EXT_TARGET_ID, MANDATORY },
- { GTP_EXT_UTRAN_CONT, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_TEID_CP, GTP_MANDATORY },
+ { GTP_EXT_RANAP_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_MM_CNTXT, GTP_MANDATORY },
+ { GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_MANDATORY },
+ { GTP_EXT_TARGET_ID, GTP_MANDATORY },
+ { GTP_EXT_UTRAN_CONT, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FORW_RELOC_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_TEID_CP, CONDITIONAL },
- { GTP_EXT_RANAP_CAUSE, CONDITIONAL },
- { GTP_EXT_GSN_ADDR, CONDITIONAL },
- { GTP_EXT_UTRAN_CONT, OPTIONAL },
- { GTP_EXT_RAB_SETUP, CONDITIONAL },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_TEID_CP, GTP_CONDITIONAL },
+ { GTP_EXT_RANAP_CAUSE, GTP_CONDITIONAL },
+ { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL },
+ { GTP_EXT_UTRAN_CONT, GTP_OPTIONAL },
+ { GTP_EXT_RAB_SETUP, GTP_CONDITIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FORW_RELOC_COMP, {
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_RELOC_CANCEL_REQ, {
- { GTP_EXT_IMSI, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_IMSI, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_RELOC_CANCEL_RESP, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FORW_RELOC_ACK, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FORW_SRNS_CNTXT, {
- { GTP_EXT_RAB_CNTXT, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_RAB_CNTXT, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
{
GTP_MSG_FORW_SRNS_CNTXT_ACK, {
- { GTP_EXT_CAUSE, MANDATORY },
- { GTP_EXT_PRIV_EXT, OPTIONAL },
+ { GTP_EXT_CAUSE, GTP_MANDATORY },
+ { GTP_EXT_PRIV_EXT, GTP_OPTIONAL },
{ 0, 0 }
}
},
}
};
-static int
+static int
check_field_presence(guint8 message, guint8 field, int *position) {
-
+
guint i = 0;
_gtp_mess_items *mess_items;
switch(gtp_version) {
- case 0:
+ case 0:
mess_items = gprs_mess_items;
break;
- case 1:
+ case 1:
mess_items = umts_mess_items;
break;
default:
while (mess_items[i].code) {
if (mess_items[i].code == message) {
-
+
while (mess_items[i].fields[*position].code) {
if (mess_items[i].fields[*position].code == field) {
(*position)++;
return 0;
- } else {
- if (mess_items[i].fields[*position].presence == MANDATORY) {
+ } else {
+ if (mess_items[i].fields[*position].presence == GTP_MANDATORY) {
return mess_items[i].fields[(*position)++].code;
} else {
(*position)++;
return -1;
}
i++;
- }
+ }
return -2;
}
* UMTS: 29.060 v4.0, chapter
*/
static int
-decode_gtp_cause(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_cause(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint8 cause;
-
- cause = tvb_get_guint8(tvb, offset+1);
-
+
+ cause = tvb_get_guint8(tvb, offset+1);
+
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_cause : hf_gtpv0_cause, tvb, offset, 2, cause);
return 2;
/* GPRS: 9.60 v7.6.0, chapter 7.9.2
* UMTS: 29.060 v4.0, chapter 7.7.2
*/
-static int
-decode_gtp_imsi(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint8 tid_val[8];
- gchar *tid_str;
-
- tvb_memcpy(tvb, tid_val, offset+1, 8);
- tid_val[1] = tid_val[1] & 0x0F;
- tid_str = id_to_str(tid_val);
-
- proto_tree_add_string(tree, gtp_version ? hf_gtpv1_imsi : hf_gtpv0_imsi, tvb, offset, 9, tid_str);
+static int
+decode_gtp_imsi(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint8 imsi_val[8];
+ gchar *imsi_str;
+
+ tvb_memcpy(tvb, imsi_val, offset+1, 8);
+ imsi_str = imsi_to_str (imsi_val);
+
+ proto_tree_add_string(tree, gtp_version ? hf_gtpv1_imsi : hf_gtpv0_imsi, tvb, offset, 9, imsi_str);
return 9;
}
* TODO: Add details about MCC, MNC, LAC, RAC (show each digit) ?
*/
static int
-decode_gtp_rai(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_rai(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
proto_tree *ext_tree_rai;
proto_item *te;
guint8 byte[3];
-
- te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_RAI, gtp_val, "Unknown message"));
+
+ te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_RAI, gtp_val, "Unknown message"));
ext_tree_rai = proto_item_add_subtree(te, ett_gtp_rai);
-
+
/* tvb_memcpy (tvb, (guint8 *)&byte, offset + 1, 3); */
byte[1] = tvb_get_guint8 (tvb, offset + 1);
byte[2] = tvb_get_guint8 (tvb, offset + 2);
byte[3] = tvb_get_guint8 (tvb, offset + 3);
-
-
+
+
proto_tree_add_uint(ext_tree_rai, gtp_version ? hf_gtpv1_rai_mcc : hf_gtpv0_rai_mcc, tvb, offset+1, 2, (byte[1] & 0x0F) * 100 + ((byte[1] & 0xF0) >> 4) * 10 + (byte[2] & 0x0F ));
proto_tree_add_uint(ext_tree_rai, gtp_version ? hf_gtpv1_rai_mnc : hf_gtpv0_rai_mnc, tvb, offset+2, 2, ((byte[3] & 0xF0) >> 4 ) * 10 + (byte[3] & 0x0F));
proto_tree_add_uint(ext_tree_rai, gtp_version ? hf_gtpv1_rai_lac : hf_gtpv0_rai_lac, tvb, offset+4, 2, tvb_get_ntohs (tvb, offset+4));
* UMTS: 29.060 v4.0, chapter 7.7.4, page 47
*/
static int
-decode_gtp_tlli(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_tlli(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint32 tlli;
-
- tlli = tvb_get_ntohl(tvb, offset+1);
- proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_tlli : hf_gtpv0_tlli, tvb, offset, 5, tlli);
+
+ tlli = tvb_get_ntohl(tvb, offset+1);
+ proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_tlli : hf_gtpv0_tlli, tvb, offset, 5, tlli);
return 5;
}
* UMTS: 29.060 v4.0, chapter 7.7.5, page 47
*/
static int
-decode_gtp_ptmsi(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_ptmsi(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint32 ptmsi;
-
- ptmsi = tvb_get_ntohl(tvb, offset);
+
+ ptmsi = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_ptmsi : hf_gtpv0_ptmsi, tvb, offset, 5, ptmsi);
return 5;
}
-/* adjust - how many bytes before offset should be highlighted
+/* adjust - how many bytes before offset should be highlighted
*/
static int
decode_qos_gprs(tvbuff_t *tvb, int offset, proto_tree *tree, gchar* qos_str, guint8 adjust) {
-
+
guint8 spare1, delay, reliability, peak, spare2, precedence, spare3, mean;
proto_tree *ext_tree_qos;
proto_item *te;
-
+
spare1 = tvb_get_guint8(tvb, offset) & 0xC0;
delay = tvb_get_guint8(tvb, offset) & 0x38;
reliability = tvb_get_guint8(tvb, offset) & 0x07;
precedence = tvb_get_guint8(tvb, offset+1) & 0x07;
spare3 = tvb_get_guint8(tvb, offset+2) & 0xE0;
mean = tvb_get_guint8(tvb, offset+2) & 0x1F;
-
+
te = proto_tree_add_text(tree, tvb, offset-adjust, 3+adjust, "%s: delay: %u, reliability: %u, peak: %u, precedence: %u, mean: %u",
qos_str, delay, reliability, peak, precedence, mean);
ext_tree_qos = proto_item_add_subtree(te, ett_gtp_qos);
proto_tree_add_uint(ext_tree_qos, hf_gtpv0_qos_mean, tvb, offset+2, 1, mean);
}
- return 3;
+ return 3;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.6, page 39
* 4.08
* 3.60
* UMTS: not present
- * TODO: check if length is included: ETSI 4.08 vs 9.60
+ * TODO: check if length is included: ETSI 4.08 vs 9.60
*/
static int
-decode_gtp_qos_gprs(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_qos_gprs(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
return (1+decode_qos_gprs(tvb, offset+1, tree, "Quality of Service", 1));
-
+
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.7, page 39
* UMTS: 29.060 v4.0, chapter 7.7.6, page 47
*/
static int
-decode_gtp_reorder(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_reorder(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint8 reorder;
-
- reorder = tvb_get_guint8(tvb, offset+1) & 0x01;
- proto_tree_add_boolean(tree, gtp_version ? hf_gtpv1_reorder : hf_gtpv0_reorder, tvb, offset, 2, reorder);
+
+ reorder = tvb_get_guint8(tvb, offset+1) & 0x01;
+ proto_tree_add_boolean(tree, gtp_version ? hf_gtpv1_reorder : hf_gtpv0_reorder, tvb, offset, 2, reorder);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.8, page 40
- * 4.08 v7.1.2, chapter 10.5.3.1+
+ * 4.08 v7.1.2, chapter 10.5.3.1+
* UMTS: 29.060 v4.0, chapter 7.7.7
* TODO: Add blurb support by registering items in the protocol registration
*/
static int
-decode_gtp_auth_tri(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_auth_tri(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
proto_tree *ext_tree_auth_tri;
proto_item *te;
- guint32 rand[4], sres, kc[2];
-
- tvb_memcpy(tvb, (guint8 *)&rand, offset+1, 16);
- sres = tvb_get_ntohl(tvb, offset+17);
- tvb_memcpy(tvb, (guint8 *)&kc, offset+21, 16);
-
+
te = proto_tree_add_text(tree, tvb, offset, 29, val_to_str(GTP_EXT_AUTH_TRI, gtp_val, "Unknown message"));
ext_tree_auth_tri = proto_item_add_subtree(tree, ett_gtp_auth_tri);
-
- proto_tree_add_text(ext_tree_auth_tri, tvb, offset+1, 16, "RAND: %x%x%x%x", rand[0], rand[1], rand[2], rand[3]);
- proto_tree_add_text(ext_tree_auth_tri, tvb, offset+17, 4, "SRES: %x", sres);
- proto_tree_add_text(ext_tree_auth_tri, tvb, offset+21, 8, "Kc: %x%x", kc[0], kc[1]);
+
+ proto_tree_add_text(ext_tree_auth_tri, tvb, offset+1, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset+1, 16));
+ proto_tree_add_text(ext_tree_auth_tri, tvb, offset+17, 4, "SRES: %s", tvb_bytes_to_str(tvb, offset+17, 4));
+ proto_tree_add_text(ext_tree_auth_tri, tvb, offset+21, 8, "Kc: %s", tvb_bytes_to_str(tvb, offset+21, 8));
return 1+16+4+8;
}
* 29.002 v4.2.1, chapter 17.5, page 268
*/
static int
-decode_gtp_map_cause(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_map_cause(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 map_cause;
-
- map_cause = tvb_get_guint8(tvb, offset+1);
+
+ map_cause = tvb_get_guint8(tvb, offset+1);
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_map_cause : hf_gtpv0_map_cause, tvb, offset, 2, map_cause);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.9, page 48
*/
static int
-decode_gtp_ptmsi_sig(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_ptmsi_sig(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint32 ptmsi_sig;
-
- ptmsi_sig = tvb_get_ntoh24(tvb, offset+1);
+
+ ptmsi_sig = tvb_get_ntoh24(tvb, offset+1);
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_ptmsi_sig : hf_gtpv0_ptmsi_sig, tvb, offset, 4, ptmsi_sig);
return 4;
* UMTS: 29.060 v4.0, chapter 7.7.10, page 49
*/
static int
-decode_gtp_ms_valid(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_ms_valid(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 ms_valid;
-
- ms_valid = tvb_get_guint8(tvb, offset+1) & 0x01;
+
+ ms_valid = tvb_get_guint8(tvb, offset+1) & 0x01;
proto_tree_add_boolean(tree, gtp_version ? hf_gtpv1_ms_valid : hf_gtpv0_ms_valid, tvb, offset, 2, ms_valid);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.11, page 49
*/
static int
-decode_gtp_recovery(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_recovery(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 recovery;
-
- recovery = tvb_get_guint8(tvb, offset+1);
+
+ recovery = tvb_get_guint8(tvb, offset+1);
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_recovery : hf_gtpv0_recovery, tvb, offset, 2, recovery);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.12, page 49
*/
static int
-decode_gtp_sel_mode(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_sel_mode(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 sel_mode;
-
- sel_mode = tvb_get_guint8(tvb, offset+1) & 0x03;
+
+ sel_mode = tvb_get_guint8(tvb, offset+1) & 0x03;
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_sel_mode : hf_gtpv0_sel_mode, tvb, offset, 2, sel_mode);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.13, page 50
*/
static int
-decode_gtp_16(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint16 ext_flow_label;
+decode_gtp_16(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint16 ext_flow_label;
guint32 teid_data;
switch (gtp_version) {
case 0:
- ext_flow_label = tvb_get_ntohs(tvb, offset+1);
+ ext_flow_label = tvb_get_ntohs(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtpv0_ext_flow_label, tvb, offset, 3, ext_flow_label);
-
+
return 3;
case 1:
teid_data = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtpv1_teid_data, tvb, offset, 5, teid_data);
return 5;
- default:
+ default:
proto_tree_add_text(tree, tvb, offset, 1, "Flow label/TEID Data I : GTP version not supported");
-
+
return 3;
}
}
* UMTS: 29.060 v4.0, chapter 7.7.14, page 42
*/
static int
-decode_gtp_17(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_17(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 flow_sig;
guint32 teid_cp;
switch (gtp_version) {
case 0:
- flow_sig = tvb_get_ntohs(tvb, offset+1);
+ flow_sig = tvb_get_ntohs(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtpv0_flow_sig, tvb, offset, 3, flow_sig);
-
+
return 3;
case 1:
teid_cp = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtpv1_teid_cp, tvb, offset, 5, teid_cp);
-
+
return 5;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Flow label signalling/TEID control plane : GTP version not supported");
-
+
return 3;
}
}
* UMTS: 29.060 v4.0, chapter 7.7.15, page 51
*/
static int
-decode_gtp_18(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_18(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 flow_ii;
guint32 teid_ii;
case 0:
te = proto_tree_add_text(tree, tvb, offset, 4, val_to_str(GTP_EXT_FLOW_II, gtp_val, "Unknown message"));
ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_flow_ii);
-
+
proto_tree_add_uint(ext_tree_flow_ii, hf_gtpv0_nsapi, tvb, offset+1, 1, tvb_get_guint8(tvb, offset+1) & 0x0F);
-
- flow_ii = tvb_get_ntohs(tvb, offset+2);
+
+ flow_ii = tvb_get_ntohs(tvb, offset+2);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtpv0_flow_ii, tvb, offset+2, 2, flow_ii);
-
+
return 4;
- case 1:
+ case 1:
te = proto_tree_add_text(tree, tvb, offset, 6, val_to_str(GTP_EXT_TEID_II, gtp_val, "Unknown message"));
ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_flow_ii);
-
+
proto_tree_add_uint(ext_tree_flow_ii, hf_gtpv1_nsapi, tvb, offset+1, 1, tvb_get_guint8(tvb, offset+1) & 0x0F);
-
+
teid_ii = tvb_get_ntohl(tvb, offset+2);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtpv1_teid_ii, tvb, offset+2, 4, teid_ii);
-
+
return 6;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Flow data II/TEID Data II : GTP Version not supported");
-
+
return 4;
}
}
* Check if all ms_reason types are included
*/
static int
-decode_gtp_19(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint8 field19;
-
- field19 = tvb_get_guint8(tvb, offset+1);
-
+decode_gtp_19(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint8 field19;
+
+ field19 = tvb_get_guint8(tvb, offset+1);
+
switch (gtp_version) {
- case 0:
+ case 0:
proto_tree_add_uint(tree, hf_gtpv0_ms_reason, tvb, offset, 2, field19);
-
+
break;
case 1:
proto_tree_add_boolean(tree, hf_gtpv1_tear_ind, tvb, offset, 2, field19 & 0x01);
-
+
break;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Information Element Type = 19 : GTP Version not supported");
* UMTS: 29.060 v4.0, chapter 7.7.17, page 51
*/
static int
-decode_gtp_nsapi(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_nsapi(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 nsapi;
-
- nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
+
+ nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
proto_tree_add_uint(tree, hf_gtpv1_nsapi, tvb, offset, 2, nsapi);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.18, page 52
*/
static int
-decode_gtp_ranap_cause(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_ranap_cause(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 ranap;
-
+
ranap = tvb_get_guint8(tvb, offset+1);
if(ranap > 0 && ranap <=64)
* UMTS: 29.060 v4.0, chapter 7.7.19, page 52
*/
static int
-decode_gtp_rab_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_rab_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 nsapi, dl_pdcp_seq, ul_pdcp_seq;
guint16 dl_gtpu_seq, ul_gtpu_seq;
proto_tree *ext_tree_rab_cntxt;
proto_item *te;
-
+
te = proto_tree_add_text(tree, tvb, offset, 8, val_to_str(GTP_EXT_RAB_CNTXT, gtp_val, "Unknown message"));
ext_tree_rab_cntxt = proto_item_add_subtree(te, ett_gtp_rab_cntxt);
-
- nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
+
+ nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
dl_gtpu_seq = tvb_get_ntohs(tvb, offset+2);
ul_gtpu_seq = tvb_get_ntohs(tvb, offset+4);
dl_pdcp_seq = tvb_get_guint8(tvb, offset+6);
* UMTS: 29.060 v4.0, chapter 7.7.20, page 53
*/
static int
-decode_gtp_rp_sms(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_rp_sms(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint8 rp_sms;
-
- rp_sms = tvb_get_guint8(tvb, offset+1) & 0x07;
+
+ rp_sms = tvb_get_guint8(tvb, offset+1) & 0x07;
proto_tree_add_uint(tree, hf_gtpv1_rp_sms, tvb, offset, 2, rp_sms);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.21, page 53
*/
static int
-decode_gtp_rp(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_rp(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
proto_tree *ext_tree_rp;
proto_item *te;
guint8 nsapi, rp, spare;
-
+
nsapi = tvb_get_guint8(tvb, offset+1) & 0xF0;
spare = tvb_get_guint8(tvb, offset+1) & 0x08;
rp = tvb_get_guint8(tvb, offset+1) & 0x07;
* UMTS: 29.060 v4.0, chapter 7.7.22, page 53
*/
static int
-decode_gtp_pkt_flow_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_pkt_flow_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
proto_tree *ext_tree_pkt_flow_id;
proto_item *te;
guint8 nsapi, pkt_flow_id;
-
+
nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
pkt_flow_id = tvb_get_guint8(tvb, offset+2);
proto_tree_add_uint(ext_tree_pkt_flow_id, hf_gtpv1_nsapi, tvb, offset+1, 1, nsapi);
proto_tree_add_uint_format(ext_tree_pkt_flow_id, hf_gtpv1_pkt_flow_id, tvb, offset+2, 1, pkt_flow_id, "%s : %u", val_to_str(GTP_EXT_PKT_FLOW_ID, gtp_val, "Unknown message"), pkt_flow_id);
-
+
return 3;
}
* TODO: Differenciate these uints?
*/
static int
-decode_gtp_chrg_char(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_chrg_char(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 chrg_char;
proto_item *te;
proto_tree *ext_tree_chrg_char;
-
+
chrg_char = tvb_get_ntohs(tvb, offset+1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3, "%s: %x", val_to_str(GTP_EXT_CHRG_CHAR, gtp_val, "Unknown message"), chrg_char);
ext_tree_chrg_char = proto_item_add_subtree(te, ett_gtp_chrg_char);
-
+
proto_tree_add_uint(ext_tree_chrg_char, hf_gtpv1_chrg_char_s, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtpv1_chrg_char_n, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtpv1_chrg_char_p, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtpv1_chrg_char_f, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtpv1_chrg_char_h, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtpv1_chrg_char_r, tvb, offset+1, 2, chrg_char);
-
+
return 3;
}
/* GPRS: not present
- * UMTS: 29.060 v4.0, chapter 7.7.24, page
+ * UMTS: 29.060 v4.0, chapter 7.7.24, page
*/
static int
-decode_gtp_trace_ref(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_trace_ref(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 trace_ref;
-
+
trace_ref = tvb_get_ntohs(tvb, offset+1);
-
+
proto_tree_add_uint(tree, hf_gtpv1_trace_ref, tvb, offset, 3, trace_ref);
return 3;
}
/* GPRS: not present
- * UMTS: 29.060 v4.0, chapter 7.7.25, page
+ * UMTS: 29.060 v4.0, chapter 7.7.25, page
*/
static int
-decode_gtp_trace_type(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_trace_type(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 trace_type;
-
+
trace_type = tvb_get_ntohs(tvb, offset+1);
-
+
proto_tree_add_uint(tree, hf_gtpv1_trace_type, tvb, offset, 3, trace_type);
-
+
return 3;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.16A
- * UMTS: 29.060 v4.0, chapter 7.7.25A, page
+ * UMTS: 29.060 v4.0, chapter 7.7.25A, page
*/
static int
-decode_gtp_ms_reason(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint8 reason;
-
- reason = tvb_get_guint8(tvb, offset+1);
-
+decode_gtp_ms_reason(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint8 reason;
+
+ reason = tvb_get_guint8(tvb, offset+1);
+
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_ms_reason : hf_gtpv0_ms_reason, tvb, offset, 2, reason);
return 2;
}
-/* GPRS: 12.15
+/* GPRS: 12.15 v7.6.0, chapter 7.3.3, page 45
* UMTS: 33.015
*/
static int
-decode_gtp_tr_comm(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint8 tr_command;
-
- tr_command = tvb_get_ntohl(tvb, offset+1);
-
+decode_gtp_tr_comm(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint8 tr_command;
+
+ tr_command = tvb_get_guint8(tvb, offset+1);
+
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_tr_comm : hf_gtpv0_tr_comm, tvb, offset, 2, tr_command);
return 2;
* UMTS: 29.060 v4.0, chapter 7.7.26, page 55
*/
static int
-decode_gtp_chrg_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint32 chrg_id;
-
- chrg_id = tvb_get_ntohl(tvb, offset+1);
+decode_gtp_chrg_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint32 chrg_id;
+
+ chrg_id = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, gtp_version ? hf_gtpv1_chrg_id : hf_gtpv0_chrg_id, tvb, offset, 5, chrg_id);
return 5;
* UMTS: 29.060 v4.0, chapter 7.7.27, page 55
*/
static int
-decode_gtp_user_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_user_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 length;
- guint8 pdp_typ, pdp_org;
+ guint8 pdp_typ, pdp_org;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_user;
proto_item *te;
-
-
+
+
length = tvb_get_ntohs(tvb, offset+1);
pdp_org = tvb_get_guint8(tvb, offset+3) & 0x0F;
pdp_typ = tvb_get_guint8(tvb, offset+4);
val_to_str(pdp_org, pdp_org_type, "Unknown PDP Organization"),
val_to_str(pdp_typ, pdp_type, "Unknown PDP Type"));
ext_tree_user = proto_item_add_subtree(te, ett_gtp_user);
-
+
proto_tree_add_text(ext_tree_user, tvb, offset+1, 2, "Length : %u", length);
proto_tree_add_uint(ext_tree_user, gtp_version ? hf_gtpv1_user_addr_pdp_org : hf_gtpv0_user_addr_pdp_org, tvb, offset+3, 1, pdp_org);
proto_tree_add_uint(ext_tree_user, gtp_version ? hf_gtpv1_user_addr_pdp_type : hf_gtpv0_user_addr_pdp_type, tvb, offset+4, 1, pdp_typ);
-
+
if (length == 2) {
if (pdp_org == 0 && pdp_typ == 1)
proto_item_append_text(te, " (Point to Point Protocol)");
}
} else
proto_item_append_text(te, " : empty PDP Address");
-
+
return 3+length;
}
static int
decode_triplet(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 count) {
-
+
proto_tree *ext_tree_trip;
proto_item *te_trip;
- guint32 rand[4], sres, kc[2];
guint16 i;
-
- for (i=0;i<count;i++) {
-
- tvb_memcpy(tvb, (guint8 *)&rand, offset+i*28, 16);
- sres = tvb_get_ntohl(tvb, offset+i*28+16);
- tvb_memcpy(tvb, (guint8 *)&kc, offset+i*28+20, 8);
+ for (i=0;i<count;i++) {
te_trip = proto_tree_add_text(tree, tvb, offset+i*28, 28, "Triplet no%x", i);
ext_tree_trip = proto_item_add_subtree(te_trip, ett_gtp_trip);
-
- proto_tree_add_text(ext_tree_trip, tvb, offset+i*28, 16, "RAND: %x%x%x%x", rand[0], rand[1], rand[2], rand[3]);
- proto_tree_add_text(ext_tree_trip, tvb, offset+i*28+16, 4, "SRES: %x", sres);
- proto_tree_add_text(ext_tree_trip, tvb, offset+i*28+20, 8, "Kc: %x%x", kc[0], kc[1]);
+
+ proto_tree_add_text(ext_tree_trip, tvb, offset+i*28, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset+i*28, 16));
+ proto_tree_add_text(ext_tree_trip, tvb, offset+i*28+16, 4, "SRES: %s", tvb_bytes_to_str(tvb, offset+i*28+16, 4));
+ proto_tree_add_text(ext_tree_trip, tvb, offset+i*28+20, 8, "Kc: %s", tvb_bytes_to_str(tvb, offset+i*28+20, 8));
}
-
+
return count*28;
}
*/
static int
decode_quintuplet(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 count, guint8 adjust) {
-
+
proto_tree *ext_tree_quint;
proto_item *te_quint;
- guint32 rand[4], q_ck[4], q_ik[4];
guint16 q_len, xres_len, auth_len, q_offset, i;
q_offset = 0;
-
- for (i=0;i<count;i++) {
-
+
+ for (i=0;i<count;i++) {
+
offset = offset + q_offset;
-
+
q_len = tvb_get_ntohs(tvb, offset);
-
- tvb_memcpy(tvb, (guint8 *)&rand, offset+2, 16);
- xres_len = tvb_get_ntohs(tvb, offset+18);
-/* xres = tvb_get_ptr(tvb, offset+20, xres_len);*/
- tvb_memcpy(tvb, (guint8 *)&q_ck, offset+20+xres_len, 16);
- tvb_memcpy(tvb, (guint8 *)&q_ik, offset+36+xres_len, 16);
- auth_len = tvb_get_ntohs(tvb, offset+52+xres_len);
-/* auth = tvb_get_ptr(tvb, offset+54+xres_len, auth_len);*/
te_quint = proto_tree_add_text(tree, tvb, offset-adjust, q_len+adjust, "Quintuplet #%x", i);
ext_tree_quint = proto_item_add_subtree(te_quint, ett_gtp_quint);
-
+
proto_tree_add_text(ext_tree_quint, tvb, offset, 2, "Length: %x", q_len);
- proto_tree_add_text(ext_tree_quint, tvb, offset+2, 16, "RAND: %x%x%x%x", rand[0], rand[1], rand[2], rand[3]);
- proto_tree_add_text(ext_tree_quint, tvb, offset+18, 2, "XRES length: %x", xres_len);
- proto_tree_add_text(ext_tree_quint, tvb, offset+20, xres_len, "XRES");
- proto_tree_add_text(ext_tree_quint, tvb, offset+20+xres_len, 16, "Quintuplet ciphering key: %x%x%x%x", q_ck[0], q_ck[1], q_ck[2], q_ck[3]);
- proto_tree_add_text(ext_tree_quint, tvb, offset+36+xres_len, 16, "Quintuplet integrity key: %x%x%x%x", q_ik[0], q_ik[1], q_ik[2], q_ik[3]);
- proto_tree_add_text(ext_tree_quint, tvb, offset+52+xres_len, 2, "Authentication length: %x", auth_len);
- proto_tree_add_text(ext_tree_quint, tvb, offset+54+xres_len, auth_len, "AUTH");
+ proto_tree_add_text(ext_tree_quint, tvb, offset+2, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset+2, 16));
+ xres_len = tvb_get_ntohs(tvb, offset+18);
+ proto_tree_add_text(ext_tree_quint, tvb, offset+18, 2, "XRES length: %u", xres_len);
+ proto_tree_add_text(ext_tree_quint, tvb, offset+20, xres_len, "XRES: %s", tvb_bytes_to_str(tvb, offset+20, xres_len));
+ proto_tree_add_text(ext_tree_quint, tvb, offset+20+xres_len, 16, "Quintuplet ciphering key: %s", tvb_bytes_to_str(tvb, offset+20+xres_len, 16));
+ proto_tree_add_text(ext_tree_quint, tvb, offset+36+xres_len, 16, "Quintuplet integrity key: %s", tvb_bytes_to_str(tvb, offset+36+xres_len, 16));
+ auth_len = tvb_get_ntohs(tvb, offset+52+xres_len);
+ proto_tree_add_text(ext_tree_quint, tvb, offset+52+xres_len, 2, "Authentication length: %u", auth_len);
+ proto_tree_add_text(ext_tree_quint, tvb, offset+54+xres_len, auth_len, "AUTH: %s", tvb_bytes_to_str(tvb, offset+54+xres_len, auth_len));
q_offset = q_offset + q_len + 2;
}
-
+
return q_offset;
}
-/* GPRS: 9.60 v7.6.0, chapter 7.9.19 page
+/* GPRS: 9.60 v7.6.0, chapter 7.9.19 page
* UMTS: 29.060 v4.0, chapter 7.7.28 page 57
* TODO: - check if for quintuplets first 2 bytes are length, according to AuthQuint
* - finish displaying last 3 parameters
*/
static int
-decode_gtp_mm_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint16 length, quint_len, net_cap, con_len;
+decode_gtp_mm_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint16 length, quint_len, net_cap, con_len;
guint8 cksn, count, sec_mode, cipher, trans_id, proto_disc, message, drx_split, drx_len, drx_ccch, non_drx_timer;
- guint32 kc[4], ik[4];
proto_tree *ext_tree_mm;
proto_item *te;
-
+
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_MM_CNTXT, gtp_val, "Unknown message"));
ext_tree_mm = proto_item_add_subtree(te, ett_gtp_mm);
-
+
length = tvb_get_ntohs(tvb, offset+1);
if (length < 1) return 3;
-
+
cksn = tvb_get_guint8(tvb, offset+3) & 0x07;
sec_mode = (tvb_get_guint8(tvb, offset+4) >> 6) & 0x03;
count = (tvb_get_guint8(tvb, offset+4) >> 3) & 0x07;
cipher = tvb_get_guint8(tvb, offset+4) & 0x07;
-
+
proto_tree_add_text(ext_tree_mm, tvb, offset+1, 2, "Length: %x", length);
proto_tree_add_text(ext_tree_mm, tvb, offset+3, 1, "Ciphering Key Sequence Number: %u", cksn);
if (gtp_version != 0) {
} else {
sec_mode = 1;
}
-
+
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "No of triplets: %u", count);
switch (sec_mode) {
- case 0:
+ case 0:
if (cipher == 0) {
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: no ciphering");
} else {
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: GEA/%u", cipher);
}
- tvb_memcpy(tvb, (guint8 *)&kc, offset+5, 16);
- proto_tree_add_text(ext_tree_mm, tvb, offset+5, 16, "Ciphering key CK: %x%x%x%x", kc[0], kc[1], kc[2], kc[3]);
- tvb_memcpy(tvb, (guint8 *)&ik, offset+21, 16);
- proto_tree_add_text(ext_tree_mm, tvb, offset+21, 16, "Integrity key CK: %x%x%x%x", ik[0], ik[1], ik[2], ik[3]);
+ proto_tree_add_text(ext_tree_mm, tvb, offset+5, 16, "Ciphering key CK: %s", tvb_bytes_to_str(tvb, offset+5, 16));
+ proto_tree_add_text(ext_tree_mm, tvb, offset+21, 16, "Integrity key CK: %s", tvb_bytes_to_str(tvb, offset+21, 16));
quint_len = tvb_get_ntohs(tvb, offset+37);
proto_tree_add_text(ext_tree_mm, tvb, offset+37, 2, "Quintuplets length: %x", quint_len);
offset = offset + decode_quintuplet(tvb, offset+39, ext_tree_mm, count, 0) + 39;
-
-
+
+
break;
- case 1:
+ case 1:
if (cipher == 0) {
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: no ciphering");
} else {
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: GEA/%u", cipher);
}
- tvb_memcpy(tvb, (guint8 *)&kc, offset+5, 8);
- proto_tree_add_text(ext_tree_mm, tvb, offset+5, 8, "Ciphering key Kc: %x%x", kc[0], kc[1]);
+ proto_tree_add_text(ext_tree_mm, tvb, offset+5, 8, "Ciphering key Kc: %s", tvb_bytes_to_str(tvb, offset+5, 8));
offset = offset + decode_triplet(tvb, offset+13, ext_tree_mm, count) + 13;
break;
- case 2:
- tvb_memcpy(tvb, (guint8 *)&kc, offset+5, 16);
- proto_tree_add_text(ext_tree_mm, tvb, offset+5, 16, "Ciphering key CK: %x%x%x%x", kc[0], kc[1], kc[2], kc[3]);
- tvb_memcpy(tvb, (guint8 *)&ik, offset+21, 16);
- proto_tree_add_text(ext_tree_mm, tvb, offset+21, 16, "Integrity key CK: %x%x%x%x", ik[0], ik[1], ik[2], ik[3]);
+ case 2:
+ proto_tree_add_text(ext_tree_mm, tvb, offset+5, 16, "Ciphering key CK: %s", tvb_bytes_to_str(tvb, offset+5, 16));
+ proto_tree_add_text(ext_tree_mm, tvb, offset+21, 16, "Integrity key CK: %s", tvb_bytes_to_str(tvb, offset+21, 16));
quint_len = tvb_get_ntohs(tvb, offset+37);
proto_tree_add_text(ext_tree_mm, tvb, offset+37, 2, "Quintuplets length: %x", quint_len);
-
+
offset = offset + decode_quintuplet(tvb, offset+39, ext_tree_mm, count, 0) + 39;
-
+
break;
- case 3:
+ case 3:
if (cipher == 0) {
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: no ciphering");
} else {
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: GEA/%u", cipher);
}
- tvb_memcpy(tvb, (guint8 *)&kc, offset+5, 8);
- proto_tree_add_text(ext_tree_mm, tvb, offset+5, 8, "Ciphering key Kc: %x%x", kc[0], kc[1]);
+ proto_tree_add_text(ext_tree_mm, tvb, offset+5, 8, "Ciphering key Kc: %s", tvb_bytes_to_str(tvb, offset+5, 8));
quint_len = tvb_get_ntohs(tvb, offset+13);
proto_tree_add_text(ext_tree_mm, tvb, offset+13, 2, "Quintuplets length: %x", quint_len);
offset = offset + decode_quintuplet(tvb, offset+15, ext_tree_mm, count, 0) + 15;
-
+
break;
default:
break;
}
-
-
+
+
drx_split = tvb_get_guint8(tvb, offset);
drx_len = (tvb_get_guint8(tvb, offset+1) >> 4) & 0x0F;
drx_ccch = (tvb_get_guint8(tvb, offset+1) >> 3) & 0x01;
net_cap = tvb_get_ntohs(tvb, offset+2);
con_len = tvb_get_ntohs(tvb, offset+4);
-
+
proto_tree_add_text(ext_tree_mm, tvb, offset, 1, "DRX: split PG cycle code: %u", drx_split);
proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: CN specific DRX cycle length coefficient: %u", drx_len);
proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: split PG cycle on CCCH supported by MS: %s", yesno[drx_ccch]);
} else {
proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: max sec non-DRX mode after transfer state: 2^%u", non_drx_timer-1);
}
-
+
proto_tree_add_text(ext_tree_mm, tvb, offset+2, 2, "MS network capability: %u", net_cap);
proto_tree_add_text(ext_tree_mm, tvb, offset+4, 2, "Container length: %u", con_len);
-
+
if (con_len > 0) {
trans_id = (tvb_get_guint8(tvb, offset+6) >> 4) & 0x0F;
proto_disc = tvb_get_guint8(tvb, offset+6) & 0x0F;
return 3+length;
}
+/* Function to extract the value of an hexadecimal octet. Only the lower
+ * nybble will be non-zero in the output.
+ * */
+static guint8 hex2dec (guint8 x)
+{
+ if ((x >= 'a') && (x <= 'f'))
+ x = x - 'a' + 10;
+ else if ((x >= 'A') && (x <= 'F'))
+ x = x - 'A' + 10;
+ else if ((x >= '0') && (x <= '9'))
+ x = x - '0';
+ else
+ x = 0;
+ return x;
+}
+
+/* Wrapper function to add UTF-8 decoding for QoS attributes in
+ * RADIUS messages.
+ * */
+static guint8 wrapped_tvb_get_guint8(
+ tvbuff_t *tvb, int offset, int type)
+{
+ if (type == 2)
+ return (hex2dec(tvb_get_guint8(tvb, offset)) << 4
+ | hex2dec(tvb_get_guint8(tvb, offset + 1)));
+ else
+ return tvb_get_guint8(tvb, offset);
+}
+
/* WARNING : actually length is coded on 2 octets for QoS profile but on 1 octet for PDP Context!
* so type means length of length :-)
+ *
+ * WARNING :) type does not mean length of length any more... see below for
+ * type = 3!
*/
-static int
+int
decode_qos_umts(tvbuff_t *tvb, int offset, proto_tree *tree, gchar* qos_str, guint8 type) {
guint8 length;
proto_item *te;
int mss, mu, md, gu, gd;
+ /* Will keep if the input is UTF-8 encoded (as in RADIUS messages).
+ * If 1, input is *not* UTF-8 encoded (i.e. each input octet corresponds
+ * to one byte to be dissected).
+ * If 2, input is UTF-8 encoded (i.e. each *couple* of input octets
+ * corresponds to one byte to be dissected)
+ * */
+ guint8 utf8_type = 1;
+
+ /* In RADIUS messages the QoS has a version field of two octets prepended.
+ * As of 29.061 v.3.a.0, there is an hyphen between "Release Indicator" and
+ * <release specific QoS IE UTF-8 encoding>. Even if it sounds rather
+ * inconsistent and unuseful, I will check hyphen presence here and
+ * will signal its presence.
+ * */
+ guint8 version_buffer[2];
+ guint8 hyphen;
+
+ /* Will keep the value that will be returned
+ * */
+ int retval = 0;
+
switch (type) {
case 1:
length = tvb_get_guint8 (tvb, offset);
te = proto_tree_add_text (tree, tvb, offset, length + 1, "%s", qos_str);
ext_tree_qos = proto_item_add_subtree (te, ett_gtp_qos);
proto_tree_add_text (ext_tree_qos, tvb, offset, 1, "Length: %u", length);
+ offset++;
+ retval = length + 1;
break;
case 2:
length = tvb_get_ntohs (tvb, offset + 1);
te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", qos_str);
ext_tree_qos = proto_item_add_subtree (te, ett_gtp_qos);
proto_tree_add_text (ext_tree_qos, tvb, offset + 1, 2, "Length: %u", length);
- type++; /* +1 because of first 0x86 byte for UMTS QoS */
+ offset += 3; /* +1 because of first 0x86 byte for UMTS QoS */
+ retval = length + 3;
+ break;
+ case 3:
+ /* For QoS inside RADIUS Client messages from GGSN */
+ utf8_type = 2;
+
+ /* The field in the RADIUS message starts one byte before :) */
+ length = tvb_get_guint8 (tvb, offset);
+ te = proto_tree_add_text (tree, tvb, offset - 1, length, "%s", qos_str);
+
+ ext_tree_qos = proto_item_add_subtree (te, ett_gtp_qos);
+ version_buffer[0] = tvb_get_guint8(tvb, offset + 1);
+ version_buffer[1] = tvb_get_guint8(tvb, offset + 2);
+ proto_tree_add_text (ext_tree_qos, tvb, offset + 1, 2, "Version: %c%c", version_buffer[0], version_buffer[1]);
+
+ /* Hyphen handling */
+ hyphen = tvb_get_guint8(tvb, offset + 3);
+ if (hyphen == ((guint8) '-'))
+ {
+ /* Hyphen is present, put in protocol tree */
+ proto_tree_add_text (ext_tree_qos, tvb, offset + 3, 1, "Hyphen separator: -");
+ offset++; /* "Get rid" of hyphen */
+ }
+
+ /* Now, we modify offset here and in order to use type later
+ * effectively.*/
+ offset += 2;
+ retval = length + 3; /* Actually, will be ignored. */
break;
default:
/* XXX - what should we do with the length here? */
length = 0;
+ retval = 0;
ext_tree_qos = NULL;
break;
}
-
- offset += type;
-
+
+ /* In RADIUS messages there is no allocation-retention priority
+ * so I don't need to wrap the following call to tvb_get_guint8
+ * */
al_ret_priority = tvb_get_guint8 (tvb, offset);
- spare1 = tvb_get_guint8(tvb, offset+1) & 0xC0;
- delay = tvb_get_guint8(tvb, offset+1) & 0x38;
- reliability = tvb_get_guint8(tvb, offset+1) & 0x07;
- peak = tvb_get_guint8(tvb, offset+2) & 0xF0;
- spare2 = tvb_get_guint8(tvb, offset+2) & 0x08;
- precedence = tvb_get_guint8(tvb, offset+2) & 0x07;
- spare3 = tvb_get_guint8(tvb, offset+3) & 0xE0;
- mean = tvb_get_guint8(tvb, offset+3) & 0x1F;
-
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_al_ret_priority, tvb, offset, 1, al_ret_priority);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_spare1, tvb, offset+1, 1, spare1);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_delay, tvb, offset+1, 1, delay);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_reliability, tvb, offset+1, 1, reliability);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_peak, tvb, offset+2, 1, peak);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_spare2, tvb, offset+2, 1, spare2);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_precedence, tvb, offset+2, 1, precedence);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_spare3, tvb, offset+3, 1, spare3);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_mean, tvb, offset+3, 1, mean);
+ /* All calls are wrapped to take into account the possibility that the
+ * input is UTF-8 encoded. If utf8_type is equal to 1, the final value
+ * of the offset will be the same as in the previous version of this
+ * dissector, and the wrapped function will serve as a dumb wrapper;
+ * otherwise, if utf_8_type is 2, the offset is correctly shifted by
+ * two bytes for needed shift, and the wrapped function will unencode
+ * two values from the input.
+ * */
+ spare1 = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0xC0;
+ delay = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0x38;
+ reliability = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0x07;
+ peak = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0xF0;
+ spare2 = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0x08;
+ precedence = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0x07;
+ spare3 = wrapped_tvb_get_guint8(tvb, offset+(3 - 1) * utf8_type + 1, utf8_type) & 0xE0;
+ mean = wrapped_tvb_get_guint8(tvb, offset+(3 - 1) * utf8_type + 1, utf8_type) & 0x1F;
+
+ /* In RADIUS messages there is no allocation-retention priority */
+ if (type != 3)
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_al_ret_priority, tvb, offset, 1, al_ret_priority);
+
+ /* All additions must take care of the fact that QoS fields in RADIUS
+ * messages are UTF-8 encoded, so we have to use the same trick as above.
+ * */
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_spare1, tvb, offset+(1 - 1) * utf8_type + 1, utf8_type, spare1);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_delay, tvb, offset+(1 - 1) * utf8_type + 1, utf8_type, delay);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_reliability, tvb, offset+(1 - 1) * utf8_type + 1, utf8_type, reliability);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_peak, tvb, offset+(2 - 1) * utf8_type + 1, utf8_type, peak);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_spare2, tvb, offset+(2 - 1) * utf8_type + 1, utf8_type, spare2);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_precedence, tvb, offset+(2 - 1) * utf8_type + 1, utf8_type, precedence);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_spare3, tvb, offset+(3 - 1) * utf8_type + 1, utf8_type, spare3);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_mean, tvb, offset+(3 - 1) * utf8_type + 1, utf8_type, mean);
if (length > 4) {
-
- traf_class = tvb_get_guint8(tvb, offset+4) & 0xE0;
- del_order = tvb_get_guint8(tvb, offset+4) & 0x18;
- del_err_sdu = tvb_get_guint8(tvb, offset+4) & 0x07;
- max_sdu_size = tvb_get_guint8(tvb, offset+5);
- max_dl = tvb_get_guint8(tvb, offset+6);
- max_ul = tvb_get_guint8(tvb, offset+7);
- res_ber = tvb_get_guint8(tvb, offset+8) & 0xF0;
- sdu_err_ratio = tvb_get_guint8(tvb, offset+8) & 0x0F;
- trans_delay = tvb_get_guint8(tvb, offset+9) & 0xFC;
- traf_handl_prio = tvb_get_guint8(tvb, offset+9) & 0x03;
- guar_ul = tvb_get_guint8(tvb, offset+10);
- guar_dl = tvb_get_guint8(tvb, offset+11);
-
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_traf_class, tvb, offset+4, 1, traf_class);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_del_order, tvb, offset+4, 1, del_order);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_del_err_sdu, tvb, offset+4, 1, del_err_sdu);
+
+ /* See above for the need of wrapping
+ * */
+ traf_class = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0xE0;
+ del_order = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0x18;
+ del_err_sdu = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0x07;
+ max_sdu_size = wrapped_tvb_get_guint8(tvb, offset+(5 - 1) * utf8_type + 1, utf8_type);
+ max_ul = wrapped_tvb_get_guint8(tvb, offset+(6 - 1) * utf8_type + 1, utf8_type);
+ max_dl = wrapped_tvb_get_guint8(tvb, offset+(7 - 1) * utf8_type + 1, utf8_type);
+ res_ber = wrapped_tvb_get_guint8(tvb, offset+(8 - 1) * utf8_type + 1, utf8_type) & 0xF0;
+ sdu_err_ratio = wrapped_tvb_get_guint8(tvb, offset+(8 - 1) * utf8_type + 1, utf8_type) & 0x0F;
+ trans_delay = wrapped_tvb_get_guint8(tvb, offset+(9 - 1) * utf8_type + 1, utf8_type) & 0xFC;
+ traf_handl_prio = wrapped_tvb_get_guint8(tvb, offset+(9 - 1) * utf8_type + 1, utf8_type) & 0x03;
+ guar_ul = wrapped_tvb_get_guint8(tvb, offset+(10 - 1) * utf8_type + 1, utf8_type);
+ guar_dl = wrapped_tvb_get_guint8(tvb, offset+(11 - 1) * utf8_type + 1, utf8_type);
+
+ /* See above comments for the changes
+ * */
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_traf_class, tvb, offset+(4 - 1) * utf8_type + 1, utf8_type, traf_class);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_del_order, tvb, offset+(4 - 1) * utf8_type + 1, utf8_type, del_order);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_del_err_sdu, tvb, offset+(4 - 1) * utf8_type + 1, utf8_type, del_err_sdu);
if (max_sdu_size == 0 || max_sdu_size > 150)
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_max_sdu_size, tvb, offset+5, 1, max_sdu_size);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_max_sdu_size, tvb, offset+(5 - 1) * utf8_type + 1, utf8_type, max_sdu_size);
if (max_sdu_size > 0 && max_sdu_size <= 150) {
mss = max_sdu_size*10;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_sdu_size, tvb, offset+5, 1, mss, "Maximum SDU size : %u octets", mss);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_sdu_size, tvb, offset+(5 - 1) * utf8_type + 1, utf8_type, mss, "Maximum SDU size : %u octets", mss);
}
if(max_ul == 0 || max_ul == 255)
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+6, 1, max_ul);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, max_ul);
if(max_ul > 0 && max_ul <= 63)
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+6, 1, max_ul, "Maximum bit rate for uplink : %u kbps", max_ul);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, max_ul, "Maximum bit rate for uplink : %u kbps", max_ul);
if(max_ul > 63 && max_ul <=127) {
mu = 64 + ( max_ul - 64 ) * 8;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+6, 1, mu, "Maximum bit rate for uplink : %u kbps", mu);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, mu, "Maximum bit rate for uplink : %u kbps", mu);
}
-
+
if(max_ul > 127 && max_ul <=254) {
mu = 576 + ( max_ul - 128 ) * 64;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+6, 1, mu, "Maximum bit rate for uplink : %u kbps", mu);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, mu, "Maximum bit rate for uplink : %u kbps", mu);
}
if(max_dl == 0 || max_dl == 255)
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+7, 1, max_dl);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, max_dl);
if(max_dl > 0 && max_dl <= 63)
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+7, 1, max_dl, "Maximum bit rate for downlink : %u kbps", max_dl);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, max_dl, "Maximum bit rate for downlink : %u kbps", max_dl);
if(max_dl > 63 && max_dl <=127) {
md = 64 + ( max_dl - 64 ) * 8;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+7, 1, md, "Maximum bit rate for downlink : %u kbps", md);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, md, "Maximum bit rate for downlink : %u kbps", md);
}
if(max_dl > 127 && max_dl <=254) {
md = 576 + ( max_dl - 128 ) * 64;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+7, 1, md, "Maximum bit rate for downlink : %u kbps", md);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, md, "Maximum bit rate for downlink : %u kbps", md);
}
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_res_ber, tvb, offset+8, 1, res_ber);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_sdu_err_ratio, tvb, offset+8, 1, sdu_err_ratio);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_trans_delay, tvb, offset+9, 1, trans_delay);
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_traf_handl_prio, tvb, offset+9, 1, traf_handl_prio);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_res_ber, tvb, offset+(8 - 1) * utf8_type + 1, utf8_type, res_ber);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_sdu_err_ratio, tvb, offset+(8 - 1) * utf8_type + 1, utf8_type, sdu_err_ratio);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_trans_delay, tvb, offset+(9 - 1) * utf8_type + 1, utf8_type, trans_delay);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_traf_handl_prio, tvb, offset+(9 - 1) * utf8_type + 1, utf8_type, traf_handl_prio);
if(guar_ul == 0 || guar_ul == 255)
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+10, 1, guar_ul);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, guar_ul);
if(guar_ul > 0 && guar_ul <= 63)
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+10, 1, guar_ul, "Guaranteed bit rate for uplink : %u kbps", guar_ul);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, guar_ul, "Guaranteed bit rate for uplink : %u kbps", guar_ul);
if(guar_ul > 63 && guar_ul <=127) {
gu = 64 + ( guar_ul - 64 ) * 8;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+10, 1, gu, "Guaranteed bit rate for uplink : %u kbps", gu);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, gu, "Guaranteed bit rate for uplink : %u kbps", gu);
}
if(guar_ul > 127 && guar_ul <=254) {
gu = 576 + ( guar_ul - 128 ) * 64;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+10, 1, gu, "Guaranteed bit rate for uplink : %u kbps", gu);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, gu, "Guaranteed bit rate for uplink : %u kbps", gu);
}
if(guar_dl == 0 || guar_dl == 255)
- proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+11, 1, guar_dl);
+ proto_tree_add_uint(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, guar_dl);
if(guar_dl > 0 && guar_dl <= 63)
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+11, 1, guar_dl, "Guaranteed bit rate for downlink : %u kbps", guar_dl);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, guar_dl, "Guaranteed bit rate for downlink : %u kbps", guar_dl);
if(guar_dl > 63 && guar_dl <=127) {
gd = 64 + ( guar_dl - 64 ) * 8;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+11, 1, gd, "Guaranteed bit rate for downlink : %u kbps", gd);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, gd, "Guaranteed bit rate for downlink : %u kbps", gd);
}
if(guar_dl > 127 && guar_dl <=254) {
gd = 576 + ( guar_dl - 128 ) * 64;
- proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+11, 1, gd, "Guaranteed bit rate for downlink : %u kbps", gd);
+ proto_tree_add_uint_format(ext_tree_qos, hf_gtpv1_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, gd, "Guaranteed bit rate for downlink : %u kbps", gd);
}
-
+
}
-
- return length + type;
+ return retval;
}
static void
} else {
tvb_memcpy (tvb, apn, offset, length);
}
-
+
apn[length-1] = '\0';
proto_tree_add_string(tree, gtp_version ? hf_gtpv1_apn : hf_gtpv0_apn, tvb, offset, length, apn);
g_free(apn);
/* GPRS: 9.60 v7.6.0, chapter 7.9.20
* UMTS: 29.060 v4.0, chapter 7.7.29
- * TODO: unify addr functions
+ * TODO: unify addr functions
*/
static int
-decode_gtp_pdp_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_pdp_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint8 ggsn_addr_len, apn_len, trans_id, vaa, order, nsapi, sapi, pdu_send_no, pdu_rec_no, pdp_cntxt_id,
pdp_type_org, pdp_type_num, pdp_addr_len;
guint16 length, sn_down, sn_up, up_flow;
guint32 addr_ipv4, up_teid, up_teid_cp;
- struct e_in6_addr addr_ipv6;
+ struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_pdp;
proto_item *te;
-
+
length = tvb_get_ntohs(tvb, offset+1);
-
+
te = proto_tree_add_text(tree, tvb, offset, length+3, val_to_str(GTP_EXT_PDP_CNTXT, gtp_val, "Unknown message"));
ext_tree_pdp = proto_item_add_subtree(te, ett_gtp_pdp);
-
+
vaa = (tvb_get_guint8(tvb, offset+3) >> 6) & 0x01;
order = (tvb_get_guint8(tvb, offset+3) >> 4) & 0x01;
nsapi = tvb_get_guint8(tvb, offset+3) & 0x0F;
sapi = tvb_get_guint8(tvb, offset+4) & 0x0F;
-
+
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "VPLMN address allowed: %s", yesno[vaa]);
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "Reordering required: %s", yesno[order]);
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "NSAPI: %u", nsapi);
proto_tree_add_text(ext_tree_pdp, tvb, offset+4, 1, "SAPI: %u", sapi);
-
+
switch (gtp_version) {
- case 0:
+ case 0:
decode_qos_gprs(tvb, offset+5, ext_tree_pdp, "QoS subscribed", 0);
decode_qos_gprs(tvb, offset+8, ext_tree_pdp, "QoS requested", 0);
decode_qos_gprs(tvb, offset+11, ext_tree_pdp, "QoS negotiated", 0);
offset = offset + 14;
break;
- case 1:
+ case 1:
offset = offset + 5;
offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS subscribed", 1);
offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS requested", 1);
default:
break;
}
-
+
sn_down = tvb_get_ntohs(tvb, offset);
sn_up = tvb_get_ntohs(tvb, offset+2);
pdu_send_no = tvb_get_guint8(tvb, offset+4);
pdu_rec_no = tvb_get_guint8(tvb, offset+5);
-
+
proto_tree_add_text(ext_tree_pdp, tvb, offset, 2, "Sequence number down: %u", sn_down);
proto_tree_add_text(ext_tree_pdp, tvb, offset+2, 2, "Sequence number up: %u", sn_up);
proto_tree_add_text(ext_tree_pdp, tvb, offset+4, 1, "Send N-PDU number: %u", pdu_send_no);
proto_tree_add_text(ext_tree_pdp, tvb, offset+5, 1, "Receive N-PDU number: %u", pdu_rec_no);
-
+
switch (gtp_version) {
case 0:
up_flow = tvb_get_ntohs(tvb, offset+6);
pdp_type_org = tvb_get_guint8(tvb, offset) & 0x0F;
pdp_type_num = tvb_get_guint8(tvb, offset+1);
pdp_addr_len = tvb_get_guint8(tvb, offset+2);
-
+
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "PDP organization: %s", val_to_str(pdp_type_org, pdp_type, "Unknown PDP org"));
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 1, "PDP type: %s", val_to_str(pdp_type_num, pdp_org_type, "Unknown PDP type"));
proto_tree_add_text(ext_tree_pdp, tvb, offset+2, 1, "PDP address length: %u", pdp_addr_len);
break;
}
}
-
+
offset = offset + 3 + pdp_addr_len;
ggsn_addr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN address length: %u", ggsn_addr_len);
-
+
switch (ggsn_addr_len) {
- case 4:
+ case 4:
tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+1, sizeof addr_ipv4);
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 4, "GGSN address: %s", ip_to_str((guint8 *)&addr_ipv4));
break;
- case 16:
+ case 16:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+1, sizeof addr_ipv6);
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 16, "GGSN address: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
break;
default:
break;
}
-
+
offset = offset + 1 + ggsn_addr_len;
-
+
if (gtp_version == 1) {
ggsn_addr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN 2 address length: %u", ggsn_addr_len);
-
+
switch (ggsn_addr_len) {
- case 4:
+ case 4:
tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+1, sizeof addr_ipv4);
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 4, "GGSN 2 address: %s", ip_to_str((guint8 *)&addr_ipv4));
break;
- case 16:
+ case 16:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+1, sizeof addr_ipv6);
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 16, "GGSN 2 address: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
break;
break;
}
offset = offset + 1 + ggsn_addr_len;
-
+
}
-
+
apn_len = tvb_get_guint8(tvb, offset);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "APN length: %u", apn_len);
decode_apn(tvb, offset+1, apn_len, ext_tree_pdp);
offset = offset + 1 + apn_len;
-
+
trans_id = tvb_get_guint8(tvb, offset);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "Transaction identifier: %u", trans_id);
* UMTS: 29.060, v4.0, chapter 7.7.30
*/
static int
-decode_gtp_apn(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_apn(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length;
proto_tree *ext_tree_apn;
proto_item *te;
-
- length = tvb_get_ntohs(tvb, offset+1);
+
+ length = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, length+3, val_to_str(GTP_EXT_APN, gtp_val, "Unknown field"));
ext_tree_apn = proto_item_add_subtree(te, ett_gtp_apn);
-
+
proto_tree_add_text(ext_tree_apn, tvb, offset+1, 2, "APN length : %u", length);
decode_apn(tvb, offset+3, length, ext_tree_apn);
* 4.08 v. 7.1.2, chapter 10.5.6.3 (p.580)
* UMTS: 29.060 v4.0, chapter 7.7.31
* 24.008, v4.2, chapter 10.5.6.3
- * TODO: check if length is 8 or 16 bits
- * - proto_conf in 3G */
+ */
int
decode_gtp_proto_conf(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length, proto_offset;
- guint8 *ptr, conf, proto_len, tmp, msg;
+ guint16 proto_id;
+ guint8 conf, proto_len, cnt = 1;
tvbuff_t *next_tvb;
proto_tree *ext_tree_proto;
proto_item *te;
+ gboolean save_writable;
length = tvb_get_ntohs(tvb, offset + 1);
if (length < 1) return 3;
- conf = tvb_get_guint8(tvb, offset + 3) & 0x07;
+ conf = tvb_get_guint8 (tvb, offset + 3) & 0x07;
+ proto_tree_add_text (ext_tree_proto, tvb, offset + 3, 1, "Configuration protocol (00000xxx): %u", conf);
+
proto_offset = 1; /* ... 1st byte is conf */
+ offset += 4;
for (;;) {
if (proto_offset >= length) break;
- proto_len = tvb_get_guint8(tvb, offset + 6);
- proto_offset += proto_len + 3;
-
- if ((proto_len > 0) && ppp_reorder) {
-
- /* this part changes layout of GTP payload:
- * it swaps "length field" with "protocol header" */
-
- ptr = (guint8 *)tvb_get_ptr(tvb, offset + 4, 3);
-
- tmp = ptr[2];
- ptr[2] = ptr[1];
- ptr[1] = ptr[0];
- ptr[0] = tmp;
-
- next_tvb = tvb_new_subset(tvb, offset + 5, proto_len + 2, proto_len + 2);
- call_dissector(ppp_handle, next_tvb, pinfo, ext_tree_proto);
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP");
-
- if (check_col(pinfo->cinfo, COL_INFO)) {
-
- msg = tvb_get_guint8(tvb, 1);
-
- col_set_str(pinfo->cinfo, COL_INFO, val_to_str(msg, message_type, "Unknown"));
- }
- }
+ proto_id = tvb_get_ntohs (tvb, offset);
+ proto_len = tvb_get_guint8 (tvb, offset + 2);
+ proto_offset += proto_len + 3; /* 3 = proto id + length byte */
+
+ if (proto_len > 0) {
+
+ proto_tree_add_text (ext_tree_proto, tvb, offset, 2, "Protocol %u ID: %s (0x%04x)",
+ cnt, val_to_str(proto_id, ppp_vals, "Unknown"),
+ proto_id);
+ proto_tree_add_text (ext_tree_proto, tvb, offset+2, 1, "Protocol %u length: %u", cnt, proto_len);
+
+ /*
+ * Don't allow the dissector for the configuration
+ * protocol in question to update the columns - this
+ * is GTP, not PPP.
+ */
+ save_writable = col_get_writable(pinfo->cinfo);
+ col_set_writable(pinfo->cinfo, FALSE);
+
+ /*
+ * XXX - should we have our own dissector table,
+ * solely for configuration protocols, so that bogus
+ * values don't cause us to dissect the protocol
+ * data as, for example, IP?
+ */
+ next_tvb = tvb_new_subset (tvb, offset + 3, proto_len, proto_len);
+ if (!dissector_try_port(ppp_subdissector_table,
+ proto_id, next_tvb, pinfo, ext_tree_proto)) {
+ call_dissector(data_handle, next_tvb, pinfo,
+ ext_tree_proto);
+ }
+
+ col_set_writable(pinfo->cinfo, save_writable);
+ }
+
+ offset += proto_len + 3;
+ cnt++;
}
return 3 + length;
* UMTS: 29.060 v4.0, chapter 7.7.32
*/
static int
-decode_gtp_gsn_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint8 addr_type, addr_len;
- guint16 length;
+decode_gtp_gsn_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint8 addr_type, addr_len;
+ guint16 length;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_gsn_addr;
proto_item *te;
-
+
length = tvb_get_ntohs(tvb, offset+1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3+length, "GSN address : ");
ext_tree_gsn_addr = proto_item_add_subtree(te, ett_gtp_gsn_addr);
-
+
switch (length) {
case 4:
proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length);
proto_tree_add_ipv4(ext_tree_gsn_addr, gtp_version ? hf_gtpv1_gsn_ipv4 : hf_gtpv0_gsn_ipv4, tvb, offset+4, 4, addr_ipv4);
break;
case 16:
- proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length);
+ proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length);
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6);
proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
proto_tree_add_ipv6(ext_tree_gsn_addr, gtp_version ? hf_gtpv1_gsn_ipv6 : hf_gtpv0_gsn_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6);
break;
- case 17:
+ case 17:
proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address Information Element length : %u", length);
addr_type = tvb_get_guint8(tvb, offset+3) & 0xC0;
proto_tree_add_uint(ext_tree_gsn_addr, gtp_version ? hf_gtpv1_gsn_addr_type : hf_gtpv0_gsn_addr_type, tvb, offset+3, 1, addr_type);
proto_item_append_text(te, "unknown type or wrong length");
break;
}
-
+
return 3+length;
}
* UMTS: 29.060 v4.0, chapter 7.7.33
*/
static int
-decode_gtp_msisdn(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_msisdn(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
const guint8 *msisdn_val;
gchar *msisdn_str;
guint16 length;
-
+
length = tvb_get_ntohs(tvb, offset+1);
-
+
if (length < 1) return 3;
-
+
msisdn_val = tvb_get_ptr(tvb, offset+3, length);
msisdn_str = msisdn_to_str(msisdn_val, length);
-
+
proto_tree_add_string(tree, gtp_version ? hf_gtpv1_msisdn : hf_gtpv0_msisdn, tvb, offset, 3+length, msisdn_str);
-
+
return 3+length;
}
* 24.008 v4.2, chapter 10.5.6.5
*/
static int
-decode_gtp_qos_umts(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_qos_umts(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
return decode_qos_umts(tvb, offset, tree, "Quality of Service", 2);
}
* UMTS: 29.060 v4.0, chapter 7.7.35
*/
static int
-decode_gtp_auth_qui(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_auth_qui(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
return (1 + decode_quintuplet(tvb, offset+1, tree, 1, 1));
}
* 24.008 v4.2, chapter 10.5.6.12
*/
static int
-decode_gtp_tft(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_tft(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length, port1, port2, tos;
- guint8 tft_code, no_packet_filters, i, pf_id, pf_eval, pf_len, pf_content_id, pf_offset, proto;
- guint32 addr_ipv4, ipsec_id, label;
- struct e_in6_addr addr_ipv6;
- proto_tree *ext_tree_tft, *ext_tree_tft_pf;
- proto_item *te, *tee;
-
+ guint8 tft_flags, tft_code, no_packet_filters, i, pf_id, pf_eval, pf_len, pf_content_id, proto, spare;
+ guint pf_offset;
+ guint32 mask_ipv4, addr_ipv4, ipsec_id, label;
+ struct e_in6_addr addr_ipv6, mask_ipv6;
+ proto_tree *ext_tree_tft, *ext_tree_tft_pf, *ext_tree_tft_flags;
+ proto_item *te, *tee, *tef;
+
length = tvb_get_ntohs(tvb, offset+1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3+length, "Traffic flow template");
ext_tree_tft = proto_item_add_subtree(te, ett_gtp_tft);
-
- tft_code = (tvb_get_guint8(tvb, offset+3) >> 5) & 0x07;
- no_packet_filters = tvb_get_guint8(tvb, offset+3) & 0x0F;
-
+
+ tft_flags = tvb_get_guint8(tvb, offset+3);
+ tft_code = (tft_flags >> 5) & 0x07;
+ spare = (tft_flags >> 4) & 0x01;
+ no_packet_filters = tft_flags & 0x0F;
+
proto_tree_add_text(ext_tree_tft, tvb, offset+1, 2, "TFT length: %u", length);
- proto_tree_add_text(ext_tree_tft, tvb, offset+3, 1, "TFT operation code: %u", tft_code);
- proto_tree_add_text(ext_tree_tft, tvb, offset+3, 1, "Number of packet filters: %u", no_packet_filters);
+
+ tef = proto_tree_add_text (ext_tree_tft, tvb, offset + 3, 1, "TFT flags");
+ ext_tree_tft_flags = proto_item_add_subtree (tef, ett_gtp_tft_flags);
+ proto_tree_add_uint (ext_tree_tft_flags, hf_gtpv1_tft_code, tvb, offset + 3, 1, tft_flags);
+ proto_tree_add_uint (ext_tree_tft_flags, hf_gtpv1_tft_spare, tvb, offset + 3, 1, tft_flags);
+ proto_tree_add_uint (ext_tree_tft_flags, hf_gtpv1_tft_number, tvb, offset + 3, 1, tft_flags);
offset = offset + 4;
-
+
for (i=0;i<no_packet_filters;i++) {
-
+
pf_id = tvb_get_guint8(tvb, offset);
-
- tee = proto_tree_add_text(ext_tree_tft, tvb, offset, 1, "Packet filter id: %u", pf_id);
- ext_tree_tft_pf = proto_item_add_subtree(tee, ett_gtp_tft_pf);
-
+
+ tee = proto_tree_add_text (ext_tree_tft, tvb, offset, 1, "Packet filter id: %u", pf_id);
+ ext_tree_tft_pf = proto_item_add_subtree (tee, ett_gtp_tft_pf);
+ offset++;
+
if (tft_code != 2) {
-
- pf_eval = tvb_get_guint8(tvb, offset+1);
- pf_len = tvb_get_guint8(tvb, offset+2);
-
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+1, 1, "Evaluation precedence: %u", pf_eval);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+2, 1, "Contents length: %u", pf_len);
- offset = offset + 3;
- pf_offset = 0;
-
- while (pf_offset < pf_len) {
-
- pf_content_id = tvb_get_guint8(tvb, offset + pf_offset);
-
+ pf_eval = tvb_get_guint8(tvb, offset);
+ pf_len = tvb_get_guint8(tvb, offset + 1);
+
+ proto_tree_add_uint (ext_tree_tft_pf, hf_gtpv1_tft_eval, tvb, offset, 1, pf_eval);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset+1, 1, "Content length: %u", pf_len);
+
+ offset = offset + 2;
+ pf_offset = 0;
+
+ while (pf_offset < pf_len) {
+
+ pf_content_id = tvb_get_guint8 (tvb, offset + pf_offset);
+
switch (pf_content_id) {
/* address IPv4 and mask = 8 bytes*/
- case 0x10:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 1, "Address IPv4 and mask (0x10)");
- tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset + pf_offset + 1, sizeof addr_ipv4);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 4, "\tAddress: %s", ip_to_str((guint8 *)&addr_ipv4));
- tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset + pf_offset + 5, sizeof addr_ipv4);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 5, 4, "\tNetmask: %s", ip_to_str((guint8 *)&addr_ipv4));
+ case 0x10:
+ tvb_memcpy (tvb, (guint8 *)&addr_ipv4, offset + pf_offset + 1, sizeof addr_ipv4);
+ tvb_memcpy (tvb, (guint8 *)&mask_ipv4, offset + pf_offset + 5, sizeof mask_ipv4);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 9, "ID 0x10: IPv4/mask: %s/%s", ip_to_str ((guint8 *)&addr_ipv4), ip_to_str ((guint8 *)&mask_ipv4));
pf_offset = pf_offset + 9;
break;
/* address IPv6 and mask = 32 bytes*/
- case 0x20:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Address IPv6 and mask (0x20)");
- tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+pf_offset+1, sizeof addr_ipv6);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+offset+1, 16, "\tAddress: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
- tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+pf_offset+17, sizeof addr_ipv6);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+offset+17, 16, "\tNetmask: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
+ case 0x20:
+ tvb_memcpy (tvb, (guint8 *)&addr_ipv6, offset+pf_offset+1, sizeof addr_ipv6);
+ tvb_memcpy (tvb, (guint8 *)&mask_ipv6, offset+pf_offset+17, sizeof mask_ipv6);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset+pf_offset, 33, "ID 0x20: IPv6/mask: %s/%s", ip6_to_str ((struct e_in6_addr*)&addr_ipv6), ip6_to_str ((struct e_in6_addr*)&mask_ipv6));
pf_offset = pf_offset + 33;
break;
/* protocol identifier/next header type = 1 byte*/
case 0x30:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 1, "IPv4 protocol identifier/IPv6 next header (0x30)");
- proto = tvb_get_guint8(tvb, offset + pf_offset + 1);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 1, "\t%u", proto);
+ proto = tvb_get_guint8 (tvb, offset + pf_offset + 1);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 2, "ID 0x30: IPv4 protocol identifier/IPv6 next header: %u (%x)", proto, proto);
pf_offset = pf_offset + 2;
break;
/* single destination port type = 2 bytes */
case 0x40:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 1, "Destination port (0x40)");
- port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 2, "\t%u", port1);
+ port1 = tvb_get_ntohs (tvb, offset + pf_offset + 1);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 3, "ID 0x40: destination port: %u", port1);
pf_offset = pf_offset + 3;
break;
/* destination port range type = 4 bytes */
case 0x41:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Destination port range (0x41)");
- port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
- port2 = tvb_get_ntohs(tvb, offset + pf_offset + 3);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 4, "\t%u-%u", port1, port2);
+ port1 = tvb_get_ntohs (tvb, offset + pf_offset + 1);
+ port2 = tvb_get_ntohs (tvb, offset + pf_offset + 3);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 5, "ID 0x41: destination port range: %u - %u", port1, port2);
pf_offset = pf_offset + 5;
break;
/* single source port type = 2 bytes */
case 0x50:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Source port (0x50)");
- port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 2, "\t%u", port1);
+ port1 = tvb_get_ntohs (tvb, offset + pf_offset + 1);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 3, "ID 0x50: source port: %u", port1);
pf_offset = pf_offset + 3;
break;
/* source port range type = 4 bytes */
case 0x51:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Source port range (0x51)");
- port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
- port2 = tvb_get_ntohs(tvb, offset + pf_offset + 3);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 4, "\t%u-%u", port1, port2);
+ port1 = tvb_get_ntohs (tvb, offset + pf_offset + 1);
+ port2 = tvb_get_ntohs (tvb, offset + pf_offset + 3);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 5, "ID 0x51: source port range: %u - %u", port1, port2);
pf_offset = pf_offset + 5;
break;
/* security parameter index type = 4 bytes */
case 0x60:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Security parameter index (0x60)");
- ipsec_id = tvb_get_ntohl(tvb, offset + pf_offset + 1);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 4, "\t%x", ipsec_id);
+ ipsec_id = tvb_get_ntohl (tvb, offset + pf_offset + 1);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 5, "ID 0x60: security parameter index: %x", ipsec_id);
pf_offset = pf_offset + 5;
break;
/* type of service/traffic class type = 2 bytes */
case 0x70:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Type of Service/Traffic Class (0x70)");
- tos = tvb_get_ntohs(tvb, offset + pf_offset + 1);
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 2, "\t%u", tos);
+ tos = tvb_get_ntohs (tvb, offset + pf_offset + 1);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 2, "ID 0x70: Type of Service/Traffic Class: %u (%x)", tos, tos);
pf_offset = pf_offset + 3;
break;
/* flow label type = 3 bytes */
case 0x80:
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset+pf_offset, 1, "Flow label (0x80)");
label = tvb_get_ntoh24(tvb, offset + pf_offset + 1) & 0x0FFFFF;;
- proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 3, "\t%x", label);
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 4, "ID 0x80: Flow Label: %u (%x)", label, label);
pf_offset = pf_offset + 4;
break;
-
- default:
+
+ default:
+ proto_tree_add_text (ext_tree_tft_pf, tvb, offset + pf_offset, 1, "Unknown value: %x ", pf_content_id);
+ pf_offset++; /* to avoid infinite loop */
break;
}
}
- }
+
+ offset = offset + pf_offset;
+ }
}
-
+
return 3 + length;
}
* 25.413 v3.4, chapter ???
*/
static int
-decode_gtp_target_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_target_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length;
length = tvb_get_ntohs(tvb, offset + 1);
proto_tree_add_text(tree, tvb, offset, 3 + length, "Targer Identification");
-
+
return 3 + length;
}
* UMTS: 29.060 v4.0, chapter 7.7.38
*/
static int
-decode_gtp_utran_cont(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_utran_cont(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length;
return 3 + length;
}
-
+
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.39
*/
static int
-decode_gtp_rab_setup(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_rab_setup(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint32 teid, addr_ipv4;
guint16 length;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_rab_setup;
proto_item *te;
-
+
length = tvb_get_ntohs(tvb, offset + 1);
nsapi = tvb_get_guint8(tvb, offset + 3) & 0x0F;
proto_tree_add_uint(ext_tree_rab_setup, hf_gtpv1_nsapi, tvb, offset+3, 1, nsapi);
if (length > 1) {
-
+
teid = tvb_get_ntohl(tvb, offset + 4);
proto_tree_add_uint(ext_tree_rab_setup, hf_gtpv1_teid_data, tvb, offset+4, 4, teid);
-
+
switch (length) {
case 12:
tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+8, sizeof addr_ipv4);
proto_tree_add_ipv4(ext_tree_rab_setup, hf_gtpv1_rnc_ipv4, tvb, offset+8, 4, addr_ipv4);
break;
- case 24:
+ case 24:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+8, sizeof addr_ipv6);
proto_tree_add_ipv6(ext_tree_rab_setup, hf_gtpv1_rnc_ipv6, tvb, offset+8, 16, (guint8 *)&addr_ipv6);
break;
* UMTS: 29.060 v4.0, chapter 7.7.40
*/
static int
-decode_gtp_hdr_list(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_hdr_list(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
int i;
guint8 length, hdr;
proto_tree *ext_tree_hdr_list;
proto_item *te;
-
+
length = tvb_get_guint8(tvb, offset + 1);
te = proto_tree_add_text(tree, tvb, offset, 2+length, "%s", val_to_str(GTP_EXT_HDR_LIST, gtp_val, "Unknown"));
ext_tree_hdr_list = proto_item_add_subtree(te, ett_gtp_hdr_list);
-
+
proto_tree_add_text(ext_tree_hdr_list, tvb, offset+1, 1, "Number of Extension Header Types in list (i.e., length) : %u", length);
for(i=0 ; i<length ; i++) {
* TODO: find TriggerID description
*/
static int
-decode_gtp_trigger_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_trigger_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length;
* TODO: find OMC-ID description
*/
static int
-decode_gtp_omc_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_omc_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length;
* UMTS: 29.060 v4.0, chapter 7.7.43
*/
static int
-decode_gtp_chrg_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint16 length;
+decode_gtp_chrg_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint16 length;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_chrg_addr;
proto_item *te;
-
+
length = tvb_get_ntohs(tvb, offset+1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s : ", val_to_str(GTP_EXT_CHRG_ADDR, gtp_val, "Unknown"));
ext_tree_chrg_addr = proto_item_add_subtree(te, ett_gtp_chrg_addr);
-
+
proto_tree_add_text(ext_tree_chrg_addr, tvb, offset+1, 2, "%s length : %u", val_to_str(GTP_EXT_CHRG_ADDR, gtp_val, "Unknown"), length);
-
+
switch (length) {
case 4:
tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+3, sizeof addr_ipv4);
proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4));
proto_tree_add_ipv4(ext_tree_chrg_addr, gtp_version ? hf_gtpv1_chrg_ipv4 : hf_gtpv0_chrg_ipv4, tvb, offset+3, 4, addr_ipv4);
break;
- case 16:
+ case 16:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6);
proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
proto_tree_add_ipv6(ext_tree_chrg_addr, gtp_version ? hf_gtpv1_chrg_ipv6 : hf_gtpv0_chrg_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6);
* UMTS: 33.015
*/
static int
-decode_gtp_rel_pack(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_rel_pack(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 length, n, number;
proto_tree *ext_tree_rel_pack;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of released packets IE");
ext_tree_rel_pack = proto_item_add_subtree(te, ett_gtp_rel_pack);
-
+
n = 0;
-
+
while (n < length) {
number = tvb_get_ntohs(tvb, offset + 3 + n);
n = n + 2;
}
-
+
return 3 + length;
}
* UMTS: 33.015
*/
static int
-decode_gtp_can_pack(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_can_pack(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 length, n, number;
proto_tree *ext_tree_can_pack;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of cancelled packets IE");
ext_tree_can_pack = proto_item_add_subtree(te, ett_gtp_can_pack);
-
+
n = 0;
-
+
while (n < length) {
number = tvb_get_ntohs(tvb, offset + 3 + n);
n = n + 2;
}
-
+
return 3 + length;
}
/* CDRs dissector */
static int
-decode_gtp_data_req(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_data_req(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 length, format_ver, data_len, i, j;
guint8 no, format, rectype;
proto_tree *ext_tree, *cdr_tree;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_DATA_REQ, gtp_val, "Unknown message"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext);
-
+
length = tvb_get_ntohs(tvb, offset + 1);
no = tvb_get_guint8(tvb, offset + 3);
format = tvb_get_guint8(tvb, offset + 4);
format_ver = tvb_get_ntohs(tvb, offset + 5);
-
+
proto_tree_add_text(ext_tree, tvb, offset+1, 2, "Length: %u", length);
proto_tree_add_text(ext_tree, tvb, offset+3, 1, "Number of data records: %u", no);
proto_tree_add_text(ext_tree, tvb, offset+4, 1, "Data record format: %u", format);
offset = offset + 7;
if (gtpv0_cdr_as != DONT_DISSECT_CDRS) {
-
+
for (i = 0; i < no; i++) {
data_len = tvb_get_ntohs(tvb, offset);
rectype = tvb_get_guint8(tvb, offset+2);
switch (rectype) {
- case 0x13: /* GCDR */
+ case 0x13: /* GCDR */
if (tvb_length_remaining(tvb, offset) < 3 + 118) {
proto_tree_add_text(ext_tree, tvb, offset, tvb_length_remaining(tvb, offset), "GCDR fragmented, can't dissect");
break;
}
-
- tvb_memcpy(tvb, gcdr.imsi, offset+3, 8);
+
+ tvb_memcpy(tvb, gcdr.imsi, offset+3, 8);
tvb_memcpy(tvb, (guint8 *)&gcdr.ggsnaddr, offset+11, sizeof gcdr.ggsnaddr);
gcdr.chrgid = tvb_get_ntohl(tvb, offset+15);
tvb_memcpy(tvb, (guint8 *)&gcdr.sgsnaddr, offset+19, sizeof gcdr.sgsnaddr);
gcdr.duration = tvb_get_ntohl(tvb, offset+112);
gcdr.closecause = tvb_get_guint8(tvb, offset+116);
gcdr.seqno = tvb_get_ntohl(tvb, offset+117);
-
+
ce = proto_tree_add_text(ext_tree, tvb, offset, data_len + 2, "GCDR (0x13), sequence number: %u", gcdr.seqno);
cdr_tree = proto_item_add_subtree(ce, ett_gtp_ext);
proto_tree_add_text(cdr_tree, tvb, offset, 2, "Length: %u", data_len);
proto_tree_add_text(cdr_tree, tvb, offset+112, 4, "Duration: %s", rel_time_int_to_str(gcdr.duration));
proto_tree_add_text(cdr_tree, tvb, offset+116, 1, "Cause for close: %s (%u)", val_to_str(gcdr.closecause, cdr_close_type, "Unknown cause"), gcdr.closecause);
proto_tree_add_text(cdr_tree, tvb, offset+117, 4, "Sequence number: %u", gcdr.seqno);
-
+
if (data_len > 119) {
tvb_memcpy (tvb, gcdr.msisdn, offset + 121, 9);
proto_tree_add_text(cdr_tree, tvb, offset+121, 9, "MSISDN: %s", msisdn_to_str (gcdr.msisdn, 9));
}
-
+
break;
case 0x12: /* SCDR */
proto_tree_add_text(ext_tree, tvb, offset, tvb_length_remaining(tvb, offset), "SCDR fragmented, can't dissect");
break;
}
-
+
scdr.len = tvb_get_letohs(tvb, offset+3);
scdr.netini = tvb_get_guint8(tvb, offset+5);
scdr.anon = tvb_get_guint8(tvb, offset+6);
proto_tree_add_text(cdr_tree, tvb, offset+35, 4, "SGSN address: %s", ip_to_str((guint8 *)&scdr.sgsnaddr));
proto_tree_add_text(cdr_tree, tvb, offset+39, 12, "(not used)");
proto_tree_add_text(cdr_tree, tvb, offset+51, 1, "MS network capability length: %u", scdr.msclass_caplen);
-
+
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+52, 1, "MS network capability: %u", scdr.msclass_cap);
cap_tree = proto_item_add_subtree(cap_id, ett_chrg_cap);
proto_tree_add_uint(cap_tree, hf_gtpv0_chrg_cap_gea, tvb, offset+52, 1, scdr.cap);
proto_tree_add_text(cdr_tree, tvb, offset+152+23*j, 4, "Downlink: %x", scdr.change[j].downlink);
decode_qos_gprs(tvb, offset+156, cdr_tree, "QoS requested", 0);
decode_qos_gprs(tvb, offset+159, cdr_tree, "QoS negotiated", 0);
- }
+ }
proto_tree_add_text(cdr_tree, tvb, offset+254, 4, "Timestamp: %s", time_int_to_str(scdr.timestamp));
proto_tree_add_text(cdr_tree, tvb, offset+258, 4, "Opening: %s", time_int_to_str(scdr.opening));
proto_tree_add_text(cdr_tree, tvb, offset+262, 4, "Duration: %s", rel_time_int_to_str(scdr.duration));
proto_tree_add_text(cdr_tree, tvb, offset+33, 4, "SGSN address: %s", ip_to_str((guint8 *)&mcdr.sgsnaddr));
proto_tree_add_text(cdr_tree, tvb, offset+37, 12, "(not used)");
proto_tree_add_text(cdr_tree, tvb, offset+49, 1, "MS network capability length: %u", mcdr.msclass_caplen);
-
+
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+50, 1, "MS network capability: %u", mcdr.msclass_cap);
cap_tree = proto_item_add_subtree(cap_id, ett_chrg_cap);
proto_tree_add_uint(cap_tree, hf_gtpv0_chrg_cap_gea, tvb, offset+50, 1, mcdr.cap);
proto_tree_add_text(cdr_tree, tvb, offset+23, 10, "MSISDN: %s", msisdn_to_str(socdr.msisdn, 10));
proto_tree_add_text(cdr_tree, tvb, offset+33, 12, "(not used)");
proto_tree_add_text(cdr_tree, tvb, offset+45, 1, "MS network capability length: %u", socdr.msclass_caplen);
-
+
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+46, 1, "MS network capability: %u", socdr.msclass_cap);
cap_tree = proto_item_add_subtree(cap_id, ett_chrg_cap);
proto_tree_add_uint(cap_tree, hf_gtpv0_chrg_cap_gea, tvb, offset+46, 1, socdr.cap);
proto_tree_add_text(cdr_tree, tvb, offset+23, 10, "MSISDN: %s", msisdn_to_str(stcdr.msisdn, 10));
proto_tree_add_text(cdr_tree, tvb, offset+33, 12, "(not used)");
proto_tree_add_text(cdr_tree, tvb, offset+45, 1, "MS network capability length: %u", stcdr.msclass_caplen);
-
+
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+46, 1, "MS network capability: %u", stcdr.msclass_cap);
cap_tree = proto_item_add_subtree(cap_id, ett_chrg_cap);
proto_tree_add_uint(cap_tree, hf_gtpv0_chrg_cap_gea, tvb, offset+46, 1, stcdr.cap);
* UMTS: 33.015
*/
static int
-decode_gtp_data_resp(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
+decode_gtp_data_resp(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
guint16 length, n, number;
proto_tree *ext_tree_data_resp;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Requests responded");
ext_tree_data_resp = proto_item_add_subtree(te, ett_gtp_data_resp);
-
+
n = 0;
-
+
while (n < length) {
number = tvb_get_ntohs(tvb, offset + 3 + n);
return 3 + length;
}
-
+
/* GPRS: 12.15
* UMTS: 33.015
*/
static int
-decode_gtp_node_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint16 length;
+decode_gtp_node_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint16 length;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_node_addr;
proto_item *te;
-
+
length = tvb_get_ntohs(tvb, offset+1);
-
+
te = proto_tree_add_text(tree, tvb, offset, 3+length, "Node address: ");
ext_tree_node_addr = proto_item_add_subtree(te, ett_gtp_node_addr);
-
+
proto_tree_add_text(ext_tree_node_addr, tvb, offset+1, 2, "Node address length: %u", length);
-
+
switch (length) {
case 4:
tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+3, sizeof addr_ipv4);
proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4));
proto_tree_add_ipv4(ext_tree_node_addr, gtp_version ? hf_gtpv1_node_ipv4 : hf_gtpv0_node_ipv4, tvb, offset+3, 4, addr_ipv4);
break;
- case 16:
+ case 16:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6);
proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
proto_tree_add_ipv6(ext_tree_node_addr, gtp_version ? hf_gtpv1_node_ipv6 : hf_gtpv0_node_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6);
* UMTS: 29.060 v4.0, chapter 7.7.44
*/
static int
-decode_gtp_priv_ext(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
-
- guint16 length, ext_id;
+decode_gtp_priv_ext(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
+
+ guint16 length, ext_id;
gchar ext_val[64];
proto_tree *ext_tree_priv_ext;
proto_item *te;
-
+
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_PRIV_EXT, gtp_val, "Unknown message"));
ext_tree_priv_ext = proto_item_add_subtree(te, ett_gtp_ext);
-
+
length = tvb_get_ntohs(tvb, offset+1);
if (length < 1) return 3+length;
-
- ext_id = tvb_get_ntohs(tvb, offset+3);
+
+ ext_id = tvb_get_ntohs(tvb, offset+3);
tvb_memcpy(tvb, ext_val, offset+5, length > 65 ? 63 : length-2);
ext_val[length > 65 ? 64 : length-1] = '\0';
proto_tree_add_uint(ext_tree_priv_ext, gtp_version ? hf_gtpv1_ext_id : hf_gtpv0_ext_id, tvb, offset+3, 2, ext_id);
proto_tree_add_string(ext_tree_priv_ext, gtp_version ? hf_gtpv1_ext_val : hf_gtpv0_ext_val, tvb, offset+5, length-2, ext_val);
-
+
return 3+length;
}
static int
-decode_gtp_unknown(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
+decode_gtp_unknown(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
proto_tree_add_text(tree, tvb, offset, 1, "Unknown extension header");
static void
dissect_gtpv0(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
-
+
_gtpv0_hdr gtpv0_hdr;
proto_item *ti, *tf;
proto_tree *gtpv0_tree, *flags_tree;
tvbuff_t *next_tvb;
const guint8 *tid_val;
gchar *tid_str;
- int offset, length, i, mandatory, checked_field;
-
+ int offset, length, i, mandatory, checked_field, gtp_prime = 0;
+
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP");
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
- tvb_memcpy(tvb, (guint8 *)>pv0_hdr, 0, 12);
+ tvb_memcpy(tvb, (guint8 *)>pv0_hdr, 0, 12);
tid_val = tvb_get_ptr(tvb, 12, 8);
tid_str = id_to_str(tid_val);
gtp_version = (gtpv0_hdr.flags >> 5) & 0x07;
if (!((gtpv0_hdr.flags >> 4) & 1)) {
+ gtp_prime = 1;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP-CDR");
} else {
if (check_col(pinfo->cinfo, COL_INFO))
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(gtpv0_hdr.message, message_type, "Unknown"));
-
+
if (tree) {
-
+
/* dissect GTP header */
ti = proto_tree_add_item(tree, proto_gtpv0, tvb, 0, -1, FALSE);
gtpv0_tree = proto_item_add_subtree(ti, ett_gtp);
proto_tree_add_uint(flags_tree, hf_gtpv0_flags_pt, tvb, 0, 1, gtpv0_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtpv0_flags_spare, tvb, 0, 1, gtpv0_hdr.flags);
proto_tree_add_boolean(flags_tree, hf_gtpv0_flags_snn, tvb, 0, 1, gtpv0_hdr.flags);
-
- gtpv0_hdr.length = ntohs(gtpv0_hdr.length);
- gtpv0_hdr.seq_no = ntohs(gtpv0_hdr.seq_no);
+
+ gtpv0_hdr.length = g_ntohs(gtpv0_hdr.length);
+ gtpv0_hdr.seq_no = g_ntohs(gtpv0_hdr.seq_no);
+ gtpv0_hdr.flow_label = g_ntohs(gtpv0_hdr.flow_label);
proto_tree_add_uint(gtpv0_tree, hf_gtpv0_message_type, tvb, 1, 1, gtpv0_hdr.message);
proto_tree_add_uint(gtpv0_tree, hf_gtpv0_length, tvb, 2, 2, gtpv0_hdr.length);
proto_tree_add_uint(gtpv0_tree, hf_gtpv0_seq_number, tvb, 4, 2, gtpv0_hdr.seq_no);
- proto_tree_add_uint(gtpv0_tree, hf_gtpv0_flow_label, tvb, 6, 2, gtpv0_hdr.flow_label);
- proto_tree_add_uint(gtpv0_tree, hf_gtpv0_sndcp_number, tvb, 8, 1, gtpv0_hdr.sndcp_no);
- proto_tree_add_string(gtpv0_tree, hf_gtpv0_tid, tvb, 12, 8, tid_str);
-
+
+ /* GTP' has 6 bytes of length */
+ if (!gtp_prime) {
+ proto_tree_add_uint(gtpv0_tree, hf_gtpv0_flow_label, tvb, 6, 2, gtpv0_hdr.flow_label);
+ proto_tree_add_uint(gtpv0_tree, hf_gtpv0_sndcp_number, tvb, 8, 1, gtpv0_hdr.sndcp_no);
+ proto_tree_add_string(gtpv0_tree, hf_gtpv0_tid, tvb, 12, 8, tid_str);
+ }
+
if (gtpv0_hdr.message != GTP_MSG_TPDU) {
-
+
proto_tree_add_text(gtpv0_tree, tvb, 0, 0, "[--- end of GTPv0 header, beginning of extension headers ---]");
-
- offset = GTPv0_HDR_LENGTH;
+
+ offset = gtp_prime ? GTP_PRIME_HDR_LENGTH : GTPv0_HDR_LENGTH;
+
length = tvb_length(tvb);
mandatory = 0; /* check order of GTP fields against ETSI */
-
+
for (;;) {
-
+
if (offset >= length) break;
ext_hdr_val = tvb_get_guint8(tvb, offset);
-
+
if (gtpv0_etsi_order) {
checked_field = check_field_presence (gtpv0_hdr.message, ext_hdr_val , (int *)&mandatory);
switch (checked_field) {
default: proto_tree_add_text(gtpv0_tree, tvb, offset, 1, "[WARNING] wrong next field, should be: %s", val_to_str(checked_field, gtp_val, "Unknown extension field"));
}
}
-
+
i = -1;
while (gtpopt[++i].optcode) if (gtpopt[i].optcode == ext_hdr_val) break;
offset = offset + (*gtpopt[i].decode)(tvb, offset, pinfo, gtpv0_tree);
}
}
- }
+ }
+
+/* next part dissects sublayers of GTP */
-/* next part dissects sublayers of GTP
- * right now it's only IP */
-
if ((gtpv0_hdr.message == GTP_MSG_TPDU) && gtp_tpdu) {
- next_tvb = tvb_new_subset(tvb, 20, -1, -1);
- call_dissector(ip_handle, next_tvb, pinfo, tree);
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_append_str_gtp(pinfo->cinfo, COL_PROTOCOL, "GTP");
+ guint8 sub_proto;
+
+ sub_proto = tvb_get_guint8(tvb,GTPv0_HDR_LENGTH);
+
+ if ((sub_proto >= 0x45) && (sub_proto <= 0x4e)) {
+ /* this is most likely an IPv4 packet */
+ /* we can exclude 0x40 - 0x44 because the minimum header size is 20 octets */
+ /* 0x4f is excluded because PPP protocol type "IPv6 header compression"
+ with protocol field compression is more likely than a plain IPv4 packet with 60 octet header size */
+
+ next_tvb = tvb_new_subset(tvb, GTPv0_HDR_LENGTH, -1, -1);
+ call_dissector(ip_handle, next_tvb, pinfo, tree);
+ } else
+ if ((sub_proto & 0xf0) == 0x60) {
+ /* this is most likely an IPv6 packet */
+ next_tvb = tvb_new_subset(tvb, GTPv0_HDR_LENGTH, -1, -1);
+ call_dissector(ipv6_handle, next_tvb, pinfo, tree);
+ } else {
+ /* this seems to be a PPP packet */
+ guint8 acfield_len = 0;
+
+ if (sub_proto == 0xff) {
+ /* this might be an address field, even it shouldn't be here */
+ guint8 control_field = tvb_get_guint8(tvb,GTPv0_HDR_LENGTH + 1);
+ if (control_field == 0x03) {
+ /* now we are pretty sure that address and control field are mistakenly inserted -> ignore it for PPP dissection */
+ acfield_len = 2;
+ }
+ }
+ next_tvb = tvb_new_subset(tvb, GTPv0_HDR_LENGTH + acfield_len, -1, -1);
+ call_dissector(ppp_handle, next_tvb, pinfo, tree);
+ }
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_append_str_gtp(pinfo->cinfo, COL_PROTOCOL, "GTP");
}
-
}
/* GTP v1 dissector */
static void
dissect_gtpv1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
-
+
_gtpv1_hdr gtpv1_hdr;
proto_item *ti, *tf;
proto_tree *gtpv1_tree, *flags_tree;
guint16 seq_no;
- guint8 ext_hdr_val, i, hdr_offset = 4, next_hdr, npdu_no, probe;
+ guint8 ext_hdr_val, i, hdr_offset = 4, next_hdr, npdu_no, sub_proto;
tvbuff_t *next_tvb;
- int offset, length, mandatory, checked_field;
-
+ int offset, length, mandatory, checked_field, gtp_prime = 0;
+
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP-C");
if (check_col(pinfo->cinfo, COL_INFO))
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(gtpv1_hdr.message, message_type, "Unknown"));
if (tree) {
-
+
ti = proto_tree_add_item(tree, proto_gtpv1, tvb, 0, -1, FALSE);
gtpv1_tree = proto_item_add_subtree(ti, ett_gtp);
tf = proto_tree_add_uint(gtpv1_tree, hf_gtpv1_flags, tvb, 0, 1, gtpv1_hdr.flags);
flags_tree = proto_item_add_subtree(tf, ett_gtp_flags);
-
+
proto_tree_add_uint(flags_tree, hf_gtpv1_flags_ver, tvb, 0, 1, gtpv1_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtpv1_flags_pt, tvb, 0, 1, gtpv1_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtpv1_flags_spare, tvb, 0, 1, gtpv1_hdr.flags);
proto_tree_add_boolean(flags_tree, hf_gtpv1_flags_e, tvb, 0, 1, gtpv1_hdr.flags);
proto_tree_add_boolean(flags_tree, hf_gtpv1_flags_s, tvb, 0, 1, gtpv1_hdr.flags);
proto_tree_add_boolean(flags_tree, hf_gtpv1_flags_pn, tvb, 0, 1, gtpv1_hdr.flags);
-
- gtpv1_hdr.length = ntohs(gtpv1_hdr.length);
- gtpv1_hdr.teid = ntohl(gtpv1_hdr.teid);
-
+
proto_tree_add_uint(gtpv1_tree, hf_gtpv1_message_type, tvb, 1, 1, gtpv1_hdr.message);
+
+ gtpv1_hdr.length = g_ntohs(gtpv1_hdr.length);
proto_tree_add_uint(gtpv1_tree, hf_gtpv1_length, tvb, 2, 2, gtpv1_hdr.length);
- proto_tree_add_uint(gtpv1_tree, hf_gtpv1_teid, tvb, 4, 4, gtpv1_hdr.teid);
- if (gtpv1_hdr.flags & 0x07) {
- seq_no = tvb_get_ntohs (tvb, 8);
- proto_tree_add_uint (gtpv1_tree, hf_gtpv1_seq_number, tvb, 8, 2, seq_no);
- npdu_no = tvb_get_guint8 (tvb, 10);
- proto_tree_add_uint (gtpv1_tree, hf_gtpv1_npdu_number, tvb, 10, 1, npdu_no);
- next_hdr = tvb_get_guint8(tvb, 11);
- proto_tree_add_uint(gtpv1_tree, hf_gtpv1_next, tvb, 11, 1, next_hdr);
- hdr_offset = 0;
-
- if (next_hdr) hdr_offset = 1;
- else hdr_offset = 0;
+ gtp_prime = (gtpv1_hdr.flags & 0x01) >> 4;
+
+ /* GTP' has 6 bytes of length */
+
+ if (!gtp_prime) {
+
+ gtpv1_hdr.teid = g_ntohl(gtpv1_hdr.teid);
+ proto_tree_add_uint(gtpv1_tree, hf_gtpv1_teid, tvb, 4, 4, gtpv1_hdr.teid);
+
+ if (gtpv1_hdr.flags & 0x07) {
+ seq_no = tvb_get_ntohs (tvb, 8);
+ proto_tree_add_uint (gtpv1_tree, hf_gtpv1_seq_number, tvb, 8, 2, seq_no);
+ npdu_no = tvb_get_guint8 (tvb, 10);
+ proto_tree_add_uint (gtpv1_tree, hf_gtpv1_npdu_number, tvb, 10, 1, npdu_no);
+ next_hdr = tvb_get_guint8(tvb, 11);
+ proto_tree_add_uint(gtpv1_tree, hf_gtpv1_next, tvb, 11, 1, next_hdr);
+ hdr_offset = 0;
+
+ if (next_hdr) hdr_offset = 1;
+ else hdr_offset = 0;
+ }
}
-
+
if (gtpv1_hdr.message != GTP_MSG_TPDU) {
proto_tree_add_text(gtpv1_tree, tvb, 0, 0, "[--- end of GTP v1 header, beginning of extension headers ---]");
-
- offset = GTPv1_HDR_LENGTH - hdr_offset;
+
+ offset = gtp_prime ? GTP_PRIME_HDR_LENGTH: GTPv1_HDR_LENGTH - hdr_offset;
length = tvb_length(tvb);
-
+
mandatory = 0; /* check order of GTP fields against ETSI */
-
+
for (;;) {
-
+
if (offset >= length) break;
ext_hdr_val = tvb_get_guint8(tvb, offset);
-
+
if (gtpv1_etsi_order) {
checked_field = check_field_presence (gtpv1_hdr.message, ext_hdr_val , (int *)&mandatory);
switch (checked_field) {
default: proto_tree_add_text(gtpv1_tree, tvb, offset, 1, "[WARNING] wrong next field, should be: %s", val_to_str(checked_field, gtp_val, "Unknown extension field"));
}
}
-
+
i = -1;
while (gtpopt[++i].optcode) if (gtpopt[i].optcode == ext_hdr_val) break;
offset = offset + (*gtpopt[i].decode)(tvb, offset, pinfo, gtpv1_tree);
}
- }
+ }
}
if (gtpv1_hdr.message == GTP_MSG_ERR_IND)
if ((gtpv1_hdr.message == GTP_MSG_TPDU) && gtp_tpdu) {
-
- if (gtpv1_hdr.flags & 0x07) {
- if (tvb_get_guint8 (tvb, 11)) hdr_offset = 1; /* if next_hdr != 0 */
- else hdr_offset = 0;
+
+ if (gtpv1_hdr.flags & 0x07) {
+ if (tvb_get_guint8 (tvb, 11))
+ hdr_offset = 1; /* if next_hdr != 0 */
+ else
+ hdr_offset = 0;
}
-
- next_tvb = tvb_new_subset(tvb, GTPv1_HDR_LENGTH - hdr_offset, -1, -1);
- call_dissector(ip_handle, next_tvb, pinfo, tree);
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_append_str_gtp(pinfo->cinfo, COL_PROTOCOL, "GTP-U");
+
+ sub_proto = tvb_get_guint8(tvb,GTPv1_HDR_LENGTH - hdr_offset);
+
+ if ((sub_proto >= 0x45) && (sub_proto <= 0x4e)) {
+ /* this is most likely an IPv4 packet */
+ /* we can exclude 0x40 - 0x44 because the minimum header size is 20 octets */
+ /* 0x4f is excluded because PPP protocol type "IPv6 header compression"
+ with protocol field compression is more likely than a plain IPv4 packet with 60 octet header size */
+
+ next_tvb = tvb_new_subset(tvb, GTPv1_HDR_LENGTH - hdr_offset, -1, -1);
+ call_dissector(ip_handle, next_tvb, pinfo, tree);
+ } else
+ if ((sub_proto & 0xf0) == 0x60)
+ {
+ /* this is most likely an IPv6 packet */
+ next_tvb = tvb_new_subset(tvb, GTPv1_HDR_LENGTH - hdr_offset, -1, -1);
+ call_dissector(ipv6_handle, next_tvb, pinfo, tree);
+ } else {
+ /* this seems to be a PPP packet */
+ guint8 acfield_len = 0;
+
+ if (sub_proto == 0xff) {
+ /* this might be an address field, even it shouldn't be here */
+ guint8 control_field;
+ control_field = tvb_get_guint8(tvb,GTPv1_HDR_LENGTH - hdr_offset + 1);
+ if (control_field == 0x03)
+ {
+ /* now we are pretty sure that address and control field are mistakenly inserted -> ignore it for PPP dissection */
+ acfield_len = 2;
+ }
+ }
+ next_tvb = tvb_new_subset(tvb, GTPv1_HDR_LENGTH - hdr_offset + acfield_len, -1, -1);
+ call_dissector(ppp_handle, next_tvb, pinfo, tree);
+ }
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_append_str_gtp(pinfo->cinfo, COL_PROTOCOL, "GTP-U");
}
}
-static const true_false_string yes_no_tfs = {
+static const true_false_string yes_no_tfs = {
"yes" ,
"no"
};
void
proto_register_gtp(void)
-{
+{
static hf_register_info hf_gtpv0[] = {
{ &hf_gtpv0_ms_valid, { "MS validated", "gtpv0.ms_valid", FT_BOOLEAN, BASE_NONE,NULL, 0, "MS validated", HFILL }},
{ &hf_gtpv0_recovery, { "Recovery", "gtpv0.recovery", FT_UINT8, BASE_DEC, NULL, 0, "Restart counter", HFILL }},
{ &hf_gtpv0_sel_mode, { "Selection mode", "gtpv0.sel_mode", FT_UINT8, BASE_DEC, VALS(sel_mode_type), 0, "Selection Mode", HFILL }},
- { &hf_gtpv0_ext_flow_label, { "Flow Label Data I", "gtpv0.ext_flow_label", FT_UINT16, BASE_DEC, NULL, 0, "Flow label data", HFILL }},
- { &hf_gtpv0_flow_sig, { "Flow label Signalling", "gtpv0.flow_sig", FT_UINT16, BASE_DEC, NULL, 0, "Flow label signalling", HFILL }},
+ { &hf_gtpv0_ext_flow_label, { "Flow Label Data I", "gtpv0.ext_flow_label", FT_UINT16, BASE_HEX, NULL, 0, "Flow label data", HFILL }},
+ { &hf_gtpv0_flow_sig, { "Flow label Signalling", "gtpv0.flow_sig", FT_UINT16, BASE_HEX, NULL, 0, "Flow label signalling", HFILL }},
{ &hf_gtpv0_nsapi, { "NSAPI ", "gtpv0.nsapi", FT_UINT8, BASE_DEC, NULL, 0, "Network layer Service Access Point Identifier", HFILL }},
{ &hf_gtpv0_flow_ii, { "Flow Label Data II ","gtpv0.flow_ii", FT_UINT16, BASE_DEC, NULL, 0, "Downlink flow label data", HFILL }},
{ &hf_gtpv0_ms_reason, { "MS not reachable reason", "gtpv0.ms_reason", FT_UINT8, BASE_DEC, VALS(ms_not_reachable_type), 0, "MS Not Reachable Reason", HFILL }},
};
-
+
static hf_register_info hf_gtpv1[] = {
{ &hf_gtpv1_flags, { "Flags", "gtpv1.flags", FT_UINT8, BASE_HEX, NULL, 0, "Ver/PT/Spare/E/S/PN", HFILL }},
{ &hf_gtpv1_teid_cp, { "TEID Control Plane", "gtpv1.teid_cp", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Control Plane", HFILL }},
{ &hf_gtpv1_nsapi, { "NSAPI", "gtpv1.nsapi", FT_UINT8, BASE_DEC, NULL, 0, "Network layer Service Access Point Identifier", HFILL }},
{ &hf_gtpv1_teid_ii, { "TEID Data II", "gtpv1.teid_ii", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Data II", HFILL }},
- { &hf_gtpv1_tear_ind, { "Teardown indication","gtpv1.tear_ind", FT_BOOLEAN, BASE_NONE,NULL, 0, "Teardown Indication", HFILL }},
+ { &hf_gtpv1_tear_ind, { "Teardown Indicator","gtpv1.tear_ind", FT_BOOLEAN, BASE_NONE,NULL, 0, "Teardown Indicator", HFILL }},
{ &hf_gtpv1_ranap_cause, { "RANAP cause", "gtpv1.ranap_cause", FT_UINT8, BASE_DEC, VALS(ranap_cause_type), 0, "RANAP cause", HFILL }},
{ &hf_gtpv1_rab_gtpu_dn, { "Downlink GTP-U seq number", "gtpv1.rab_gtp_dn", FT_UINT16, BASE_DEC, NULL, 0, "Downlink GTP-U sequence number", HFILL }},
{ &hf_gtpv1_rab_gtpu_up, { "Uplink GTP-U seq number", "gtpv1.rab_gtp_up", FT_UINT16, BASE_DEC, NULL, 0, "Uplink GTP-U sequence number", HFILL }},
{ &hf_gtpv1_qos_traf_handl_prio, { "Traffic handling priority", "gtpv1.qos_traf_handl_prio", FT_UINT8, BASE_DEC, VALS(qos_traf_handl_prio), GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK, "Traffic Handling Priority", HFILL }},
{ &hf_gtpv1_qos_guar_ul, { "Guaranteed bit rate for uplink", "gtpv1.qos_guar_ul", FT_UINT8, BASE_DEC, VALS(qos_guar_ul), 0, "Guaranteed bit rate for uplink", HFILL }},
{ &hf_gtpv1_qos_guar_dl, { "Guaranteed bit rate for downlink", "gtpv1.qos_guar_dl", FT_UINT8, BASE_DEC, VALS(qos_guar_dl), 0, "Guaranteed bit rate for downlink", HFILL }},
+
+ { &hf_gtpv1_tft_code, { "TFT operation code", "gtpv1.tft_code", FT_UINT8, BASE_DEC, VALS (tft_code_type), GTPv1_TFT_CODE_MASK, "TFT operation code", HFILL }},
+ { &hf_gtpv1_tft_spare, { "TFT spare bit", "gtpv1.tft_spare", FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_SPARE_MASK, "TFT spare bit", HFILL }},
+ { &hf_gtpv1_tft_number, { "Number of packet filters", "gtpv1.tft_number", FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_NUMBER_MASK, "Number of packet filters", HFILL }},
+ { &hf_gtpv1_tft_eval, { "Evaluation precedence", "gtpv1.tft_eval", FT_UINT8, BASE_DEC, NULL, 0, "Evaluation precedence", HFILL }},
+
{ &hf_gtpv1_rnc_ipv4, { "RNC address IPv4", "gtpv1.rnc_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Radio Network Controller address IPv4", HFILL }},
{ &hf_gtpv1_rnc_ipv6, { "RNC address IPv6", "gtpv1.rnc_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Radio Network Controller address IPv6", HFILL }},
{ &hf_gtpv1_chrg_ipv4, { "CG address IPv4", "gtpv1.chrg_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Charging Gateway address IPv4", HFILL }},
&ett_gtp_gsn_addr,
&ett_gtp_tft,
&ett_gtp_tft_pf,
+ &ett_gtp_tft_flags,
&ett_gtp_rab_setup,
&ett_gtp_hdr_list,
&ett_gtp_chrg_addr,
};
module_t *gtp_module;
-
+
static enum_val_t gtpv0_cdr_options[] = {
- { "GSM 12.15", 0 },
+ { "GSM 12.15 (not implemented yet)", 0 },
{ "Nokia CDR", 1 },
{ "None", 2 },
{ NULL, -1 }
};
- proto_gtpv0 = proto_register_protocol("GPRS Tunnelling Protocol v0", "GTPv0", "gtpv0");
+ /* proto_gtp defined only for preference tab */
+ proto_gtp = proto_register_protocol ("GPRS Tunneling Protocol", "GTP", "gtp");
+
+ proto_gtpv0 = proto_register_protocol ("GPRS Tunnelling Protocol v0", "GTPv0", "gtpv0");
proto_register_field_array(proto_gtpv0, hf_gtpv0, array_length(hf_gtpv0));
proto_register_subtree_array(ett_gtp_array, array_length(ett_gtp_array));
-
+
proto_gtpv1 = proto_register_protocol("GPRS Tunnelling Protocol v1", "GTPv1", "gtpv1");
proto_register_field_array(proto_gtpv1, hf_gtpv1, array_length(hf_gtpv1));
proto_register_subtree_array(ett_gtp_array, array_length(ett_gtp_array));
-
- gtp_module = prefs_register_protocol(proto_gtpv0, proto_reg_handoff_gtp);
-
- prefs_register_uint_preference(gtp_module, "gtpv0_port", "GTPv0 port ", "GTPv0 port (default 3386)", 10, &g_gtpv0_port);
- prefs_register_uint_preference(gtp_module, "gtpv1c_port", "GTPv1 control plane (GTP-C) port ", "GTPv1 control plane port (default 2123)", 10, &g_gtpv1c_port);
- prefs_register_uint_preference(gtp_module, "gtpv1u_port", "GTPv1 user plane (GTP-U) port ", "GTPv1 user plane port (default 2152)", 10, &g_gtpv1u_port);
- prefs_register_bool_preference(gtp_module, "gtp_dissect_tpdu", "Dissect T-PDU ", "Dissect T-PDU", >p_tpdu);
- prefs_register_enum_preference(gtp_module, "gtpv0_dissect_cdr_as", "Dissect GTP'v0 CDRs as ", "Dissect GTP'v0 CDRs as", >pv0_cdr_as, gtpv0_cdr_options, FALSE);
- prefs_register_bool_preference(gtp_module, "gtpv0_check_etsi", "Compare GTPv0 order with ETSI ", "GTPv0 ETSI order", >pv0_etsi_order);
- prefs_register_bool_preference(gtp_module, "gtpv1_check_etsi", "Compare GTPv1 order with ETSI ", "GTPv1 ETSI order", >pv1_etsi_order);
- prefs_register_bool_preference(gtp_module, "ppp_reorder", "Reorder & dissect PPP in Protocol conf. options", "PPP reorder & dissect", &ppp_reorder);
-
+
+ gtp_module = prefs_register_protocol(proto_gtp, proto_reg_handoff_gtp);
+
+ prefs_register_uint_preference(gtp_module, "v0_port", "GTPv0 port", "GTPv0 port (default 3386)", 10, &g_gtpv0_port);
+ prefs_register_uint_preference(gtp_module, "v1c_port", "GTPv1 control plane (GTP-C) port", "GTPv1 control plane port (default 2123)", 10, &g_gtpv1c_port);
+ prefs_register_uint_preference(gtp_module, "v1u_port", "GTPv1 user plane (GTP-U) port", "GTPv1 user plane port (default 2152)", 10, &g_gtpv1u_port);
+ prefs_register_bool_preference(gtp_module, "dissect_tpdu", "Dissect T-PDU", "Dissect T-PDU", >p_tpdu);
+ prefs_register_enum_preference(gtp_module, "v0_dissect_cdr_as", "Dissect GTP'v0 CDRs as", "Dissect GTP'v0 CDRs as", >pv0_cdr_as, gtpv0_cdr_options, FALSE);
+ prefs_register_bool_preference(gtp_module, "v0_check_etsi", "Compare GTPv0 order with ETSI", "GTPv0 ETSI order", >pv0_etsi_order);
+ prefs_register_bool_preference(gtp_module, "v1_check_etsi", "Compare GTPv1 order with ETSI", "GTPv1 ETSI order", >pv1_etsi_order);
+ prefs_register_obsolete_preference(gtp_module, "ppp_reorder");
+
register_dissector("gtpv0", dissect_gtpv0, proto_gtpv0);
register_dissector("gtpv1", dissect_gtpv1, proto_gtpv1);
-
}
void
static int Initialized = FALSE;
static dissector_handle_t gtpv0_handle;
static dissector_handle_t gtpv1_handle;
-
+
if (!Initialized) {
-
+
gtpv0_handle = find_dissector("gtpv0");
gtpv1_handle = find_dissector("gtpv1");
Initialized = TRUE;
-
+
} else {
-
+
dissector_delete("udp.port", gtpv0_port, gtpv0_handle);
dissector_delete("tcp.port", gtpv0_port, gtpv0_handle);
dissector_delete("udp.port", gtpv1u_port, gtpv1_handle);
dissector_delete("tcp.port", gtpv1u_port, gtpv1_handle);
}
-
+
gtpv0_port = g_gtpv0_port;
gtpv1c_port = g_gtpv1c_port;
gtpv1u_port = g_gtpv1u_port;
-
+
/* GTP v0 */
-
+
dissector_add("udp.port", g_gtpv0_port, gtpv0_handle);
dissector_add("tcp.port", g_gtpv0_port, gtpv0_handle);
/* GTP v1 */
-
+
dissector_add("udp.port", g_gtpv1c_port, gtpv1_handle);
dissector_add("tcp.port", g_gtpv1c_port, gtpv1_handle);
dissector_add("udp.port", g_gtpv1u_port, gtpv1_handle);
dissector_add("tcp.port", g_gtpv1u_port, gtpv1_handle);
-
+
ip_handle = find_dissector("ip");
+ ipv6_handle = find_dissector("ipv6");
ppp_handle = find_dissector("ppp");
+ data_handle = find_dissector("data");
}
git.samba.org / obnox / wireshark / wip.git / blobdiff