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-rw-r--r--epan/Makefile.common1
-rw-r--r--epan/dissectors/packet-iax2.c1192
-rw-r--r--epan/nstime.c92
-rw-r--r--epan/nstime.h23
-rw-r--r--timestats.c30
-rw-r--r--timestats.h6
6 files changed, 740 insertions, 604 deletions
diff --git a/epan/Makefile.common b/epan/Makefile.common
index a1ee4fd58a..f2d4204a86 100644
--- a/epan/Makefile.common
+++ b/epan/Makefile.common
@@ -53,6 +53,7 @@ LIBETHEREAL_SRC = \
in_cksum.c \
ipproto.c \
ipv4.c \
+ nstime.c \
osi-utils.c \
packet.c \
plugins.c \
diff --git a/epan/dissectors/packet-iax2.c b/epan/dissectors/packet-iax2.c
index c1ae493ff9..f95d6c7974 100644
--- a/epan/dissectors/packet-iax2.c
+++ b/epan/dissectors/packet-iax2.c
@@ -45,6 +45,13 @@
#define IAX2_PORT 4569
#define PROTO_TAG_IAX2 "IAX2"
+/* enough to hold any address in an address_t */
+#define MAX_ADDRESS 16
+
+/* the maximum number of transfers (of each end) we can deal with per call,
+ * plus one */
+#define IAX_MAX_TRANSFERS 2
+
/* #define DEBUG_HASHING */
/* Ethereal ID of the IAX2 protocol */
@@ -56,16 +63,20 @@ static int proto_iax2 = -1;
*/
static int hf_iax2_packet_type = -1;
static int hf_iax2_retransmission = -1;
+static int hf_iax2_callno = -1;
static int hf_iax2_scallno = -1;
static int hf_iax2_dcallno = -1;
static int hf_iax2_ts = -1;
static int hf_iax2_minits = -1;
static int hf_iax2_minividts = -1;
+static int hf_iax2_absts = -1;
+static int hf_iax2_lateness = -1;
static int hf_iax2_minividmarker = -1;
static int hf_iax2_oseqno = -1;
static int hf_iax2_iseqno = -1;
static int hf_iax2_type = -1;
static int hf_iax2_csub = -1;
+static int hf_iax2_dtmf_csub = -1;
static int hf_iax2_cmd_csub = -1;
static int hf_iax2_iax_csub = -1;
static int hf_iax2_voice_csub = -1;
@@ -90,62 +101,20 @@ static int hf_iax2_cap_png = -1;
static int hf_iax2_cap_h261 = -1;
static int hf_iax2_cap_h263 = -1;
+/* hf_iax2_ies is an array of header fields, one per potential Information
+ * Element. It's done this way (rather than having separate variables for each
+ * IE) to make the dissection of information elements clearer and more
+ * orthoganal.
+ *
+ * To add the ability to dissect a new information element, just add an
+ * appropriate entry to hf[] in proto_register_iax2(); dissect_ies() will then
+ * pick it up automatically.
+ */
+static int hf_iax2_ies[256];
+static int hf_iax2_ie_datetime = -1;
static int hf_IAX_IE_APPARENTADDR_SINFAMILY = -1;
static int hf_IAX_IE_APPARENTADDR_SINPORT = -1;
static int hf_IAX_IE_APPARENTADDR_SINADDR = -1;
-static int hf_IAX_IE_APPARENTADDR_SINZERO = -1;
-static int hf_IAX_IE_CALLED_NUMBER = -1;
-static int hf_IAX_IE_CALLING_NUMBER = -1;
-static int hf_IAX_IE_CALLING_ANI = -1;
-static int hf_IAX_IE_CALLING_NAME = -1;
-static int hf_IAX_IE_CALLED_CONTEXT = -1;
-static int hf_IAX_IE_USERNAME = -1;
-static int hf_IAX_IE_PASSWORD = -1;
-static int hf_IAX_IE_CAPABILITY = -1;
-static int hf_IAX_IE_FORMAT = -1;
-static int hf_IAX_IE_LANGUAGE = -1;
-static int hf_IAX_IE_VERSION = -1;
-static int hf_IAX_IE_ADSICPE = -1;
-static int hf_IAX_IE_DNID = -1;
-static int hf_IAX_IE_AUTHMETHODS = -1;
-static int hf_IAX_IE_CHALLENGE = -1;
-static int hf_IAX_IE_MD5_RESULT = -1;
-static int hf_IAX_IE_RSA_RESULT = -1;
-static int hf_IAX_IE_REFRESH = -1;
-static int hf_IAX_IE_DPSTATUS = -1;
-static int hf_IAX_IE_CALLNO = -1;
-static int hf_IAX_IE_CAUSE = -1;
-static int hf_IAX_IE_IAX_UNKNOWN = -1;
-static int hf_IAX_IE_MSGCOUNT = -1;
-static int hf_IAX_IE_AUTOANSWER = -1;
-static int hf_IAX_IE_MUSICONHOLD = -1;
-static int hf_IAX_IE_TRANSFERID = -1;
-static int hf_IAX_IE_RDNIS = -1;
-static int hf_IAX_IE_PROVISIONING = -1;
-static int hf_IAX_IE_AESPROVISIONING = -1;
-static int hf_IAX_IE_DATETIME = -1;
-static int hf_IAX_IE_DEVICETYPE = -1;
-static int hf_IAX_IE_SERVICEIDENT = -1;
-static int hf_IAX_IE_FIRMWAREVER = -1;
-static int hf_IAX_IE_FWBLOCKDESC = -1;
-static int hf_IAX_IE_FWBLOCKDATA = -1;
-static int hf_IAX_IE_PROVVER = -1;
-static int hf_IAX_IE_CALLINGPRES = -1;
-static int hf_IAX_IE_CALLINGTON = -1;
-static int hf_IAX_IE_CALLINGTNS = -1;
-static int hf_IAX_IE_SAMPLINGRATE = -1;
-static int hf_IAX_IE_CAUSECODE = -1;
-static int hf_IAX_IE_ENCRYPTION = -1;
-static int hf_IAX_IE_ENCKEY = -1;
-static int hf_IAX_IE_CODEC_PREFS = -1;
-static int hf_IAX_IE_RR_JITTER = -1;
-static int hf_IAX_IE_RR_LOSS = -1;
-static int hf_IAX_IE_RR_PKTS = -1;
-static int hf_IAX_IE_RR_DELAY = -1;
-static int hf_IAX_IE_RR_DROPPED = -1;
-static int hf_IAX_IE_RR_OOO = -1;
-
-static int hf_IAX_IE_DATAFORMAT = -1;
static int hf_IAX_IE_UNKNOWN_BYTE = -1;
static int hf_IAX_IE_UNKNOWN_I16 = -1;
static int hf_IAX_IE_UNKNOWN_I32 = -1;
@@ -415,6 +384,9 @@ typedef struct {
port_type ptype;
guint32 port;
guint32 callno;
+
+ /* this is where addr->data points to. it's put in here for easy freeing */
+ guint8 address_data[MAX_ADDRESS];
} iax_circuit_key;
/* tables */
@@ -466,7 +438,7 @@ static gint iax_circuit_equal(gconstpointer v, gconstpointer w)
g_message( "+++ Comparing for equality: %s, %s: %u",key_to_str(v1), key_to_str(v2), result);
#endif
- return result;;
+ return result;
}
static guint iax_circuit_hash (gconstpointer v)
@@ -490,6 +462,9 @@ static guint iax_circuit_hash (gconstpointer v)
return (guint) hash_val;
}
+/* Find, or create, a circuit for the given
+ {address,porttype,port,call} quadruplet
+*/
static guint iax_circuit_lookup(const address *address,
port_type ptype,
guint32 port,
@@ -503,16 +478,15 @@ static guint iax_circuit_lookup(const address *address,
key.port = port;
key.callno = callno;
-#ifdef DEBUG_HASHING
- g_message( "+++ looking up key: %s", key_to_str(&key));
-#endif
-
circuit_id_p = g_hash_table_lookup( iax_circuit_hashtab, &key);
if( ! circuit_id_p ) {
iax_circuit_key *new_key;
new_key = g_mem_chunk_alloc(iax_circuit_keys);
- COPY_ADDRESS(&new_key->addr, address);
+ new_key->addr.type = address->type;
+ new_key->addr.len = MIN(address->len,MAX_ADDRESS);
+ new_key->addr.data = new_key->address_data;
+ memmove(new_key->address_data,address->data,new_key->addr.len);
new_key->ptype = ptype;
new_key->port = port;
new_key->callno = callno;
@@ -521,11 +495,11 @@ static guint iax_circuit_lookup(const address *address,
*circuit_id_p = ++circuitcount;
g_hash_table_insert(iax_circuit_hashtab, new_key, circuit_id_p);
- }
#ifdef DEBUG_HASHING
- g_message( "+++ Id: %u", *circuit_id_p );
+ g_message("Created new circuit id %u for node %s", *circuit_id_p, key_to_str(new_key));
#endif
+ }
return *circuit_id_p;
}
@@ -552,13 +526,19 @@ typedef struct iax_call_data {
guint32 src_codec, dst_codec;
guint32 src_vformat, dst_vformat;
- guint forward_circuit_id;
- guint reverse_circuit_id;
+ /* when a transfer takes place, we'll get a new circuit id; we assume that we
+ don't try to transfer more than IAX_MAX_TRANSFERS times in a call */
+ guint forward_circuit_ids[IAX_MAX_TRANSFERS];
+ guint reverse_circuit_ids[IAX_MAX_TRANSFERS];
+ guint n_forward_circuit_ids;
+ guint n_reverse_circuit_ids;
- guint callno;
-} iax_call_data;
+ /* this is the subdissector for the call */
+ dissector_handle_t subdissector;
-static guint callcount = 0;
+ /* the absolute start time of the call */
+ nstime_t start_time;
+} iax_call_data;
static GMemChunk *iax_call_datas = NULL;
@@ -587,15 +567,82 @@ static void iax_init_hash( void )
IAX_INIT_PACKET_COUNT,
G_ALLOC_ONLY);
circuitcount = 0;
- callcount = 0;
}
-static iax_call_data *iax_lookup_circuit_details_from_dest( guint src_circuit_id,
- guint dst_circuit_id,
- guint framenum,
- gboolean *reversed_p,
- circuit_t **circuit_p)
+
+/* creates a new CT_IAX2 circuit with a specified circuit id for a call
+ *
+ * typically a call has up to three associated circuits: an original source, an
+ * original destination, and the result of a transfer.
+ *
+ * For each endpoint, a CT_IAX2 circuit is created and added to the call_data
+ * by this function
+ *
+ * 'reversed' should be true if this end is the one which would have _received_
+ * the NEW packet, or it is an endpoint to which the 'destination' is being
+ * transferred.
+ *
+ */
+static circuit_t *iax2_new_circuit_for_call(guint circuit_id, guint framenum, iax_call_data *iax_call,
+ gboolean reversed)
+{
+ circuit_t *res;
+
+ if(( reversed && iax_call->n_reverse_circuit_ids >= IAX_MAX_TRANSFERS) ||
+ ( !reversed && iax_call->n_forward_circuit_ids >= IAX_MAX_TRANSFERS)) {
+ g_warning("Too many transfers for iax_call");
+ return NULL;
+ }
+
+ res = circuit_new(CT_IAX2,
+ circuit_id,
+ framenum );
+
+ circuit_add_proto_data(res, proto_iax2, iax_call);
+
+ if( reversed )
+ iax_call -> reverse_circuit_ids[iax_call->n_reverse_circuit_ids++] = circuit_id;
+ else
+ iax_call -> forward_circuit_ids[iax_call->n_forward_circuit_ids++] = circuit_id;
+
+ return res;
+}
+
+
+/* returns true if this circuit id is a "forward" circuit for this call: ie, it
+ * is the point which _sent_ the original 'NEW' packet, or a point to which that
+ * end was subsequently transferred */
+static gboolean is_forward_circuit(guint circuit_id,
+ const iax_call_data *iax_call)
+{
+ guint i;
+ for(i=0;i<iax_call->n_forward_circuit_ids;i++){
+ if(circuit_id == iax_call->forward_circuit_ids[i])
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/* returns true if this circuit id is a "reverse" circuit for this call: ie, it
+ * is the point which _received_ the original 'NEW' packet, or a point to which that
+ * end was subsequently transferred */
+static gboolean is_reverse_circuit(guint circuit_id,
+ const iax_call_data *iax_call)
+{
+ guint i;
+ for(i=0;i<iax_call->n_reverse_circuit_ids;i++){
+ if(circuit_id == iax_call->reverse_circuit_ids[i])
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+static iax_call_data *iax_lookup_call_from_dest( guint src_circuit_id,
+ guint dst_circuit_id,
+ guint framenum,
+ gboolean *reversed_p)
{
circuit_t *dst_circuit;
iax_call_data * iax_call;
@@ -611,8 +658,6 @@ static iax_call_data *iax_lookup_circuit_details_from_dest( guint src_circuit_id
#endif
if( reversed_p )
*reversed_p = FALSE;
- if( circuit_p )
- *circuit_p = NULL;
return NULL;
}
@@ -625,8 +670,8 @@ static iax_call_data *iax_lookup_circuit_details_from_dest( guint src_circuit_id
/* there's no way we can create a CT_IAX2 circuit without adding
iax call data to it; assert this */
DISSECTOR_ASSERT(iax_call);
-
- if( dst_circuit_id == iax_call -> forward_circuit_id ) {
+
+ if( is_forward_circuit(dst_circuit_id, iax_call )) {
#ifdef DEBUG_HASHING
g_message( "++ destination circuit matches forward_circuit_id of call, "
"therefore packet is reversed" );
@@ -634,9 +679,7 @@ static iax_call_data *iax_lookup_circuit_details_from_dest( guint src_circuit_id
reversed = TRUE;
- if( iax_call -> reverse_circuit_id == 0 ) {
- circuit_t *rev_circuit;
-
+ if( iax_call -> n_reverse_circuit_ids == 0 ) {
/* we are going in the reverse direction, and this call
doesn't have a reverse circuit associated with it.
create one now. */
@@ -645,66 +688,41 @@ static iax_call_data *iax_lookup_circuit_details_from_dest( guint src_circuit_id
"new reverse circuit for this call" );
#endif
- iax_call -> reverse_circuit_id = src_circuit_id;
- rev_circuit = circuit_new(CT_IAX2,
- src_circuit_id,
- framenum );
- circuit_add_proto_data(rev_circuit, proto_iax2, iax_call);
-
- /* we should have already set up a subdissector for the forward
- * circuit. we'll need to copy it to the reverse circuit. */
- circuit_set_dissector(rev_circuit, circuit_get_dissector(dst_circuit));
+ iax2_new_circuit_for_call( src_circuit_id, framenum, iax_call, TRUE );
#ifdef DEBUG_HASHING
g_message( "++ done" );
#endif
- } else if( iax_call -> reverse_circuit_id != src_circuit_id ) {
- g_warning( "IAX Packet %u from circuit ids %u->%u"
+ } else if( !is_reverse_circuit(src_circuit_id, iax_call )) {
+ g_warning( "IAX Packet %u from circuit ids %u->%u "
"conflicts with earlier call with circuit ids %u->%u",
framenum,
src_circuit_id,dst_circuit_id,
- iax_call->forward_circuit_id,
- iax_call->reverse_circuit_id);
- if( reversed_p )
- *reversed_p = FALSE;
- if( circuit_p )
- *circuit_p = NULL;
+ iax_call->forward_circuit_ids[0],
+ iax_call->reverse_circuit_ids[0]);
return NULL;
}
- } else if ( dst_circuit_id == iax_call -> reverse_circuit_id ) {
+ } else if ( is_reverse_circuit(dst_circuit_id, iax_call)) {
#ifdef DEBUG_HASHING
g_message( "++ destination circuit matches reverse_circuit_id of call, "
"therefore packet is forward" );
#endif
reversed = FALSE;
- if( iax_call -> forward_circuit_id != src_circuit_id ) {
- g_warning( "IAX Packet %u from circuit ids %u->%u"
+ if( !is_forward_circuit(src_circuit_id, iax_call)) {
+ g_warning( "IAX Packet %u from circuit ids %u->%u "
"conflicts with earlier call with circuit ids %u->%u",
framenum,
src_circuit_id,dst_circuit_id,
- iax_call->forward_circuit_id,
- iax_call->reverse_circuit_id);
+ iax_call->forward_circuit_ids[0],
+ iax_call->reverse_circuit_ids[0]);
if( reversed_p )
*reversed_p = FALSE;
- if( circuit_p )
- *circuit_p = NULL;
return NULL;
}
} else {
DISSECTOR_ASSERT_NOT_REACHED();
}
-
- if( circuit_p ) {
- /* by now we've created a new circuit if one was necessary, or
- bailed out if it looks like a conflict, and we should be able
- to look up the source circuit without issue */
- *circuit_p = find_circuit( CT_IAX2,
- src_circuit_id,
- framenum );
- DISSECTOR_ASSERT(*circuit_p);
- }
-
if( reversed_p )
*reversed_p = reversed;
@@ -712,17 +730,15 @@ static iax_call_data *iax_lookup_circuit_details_from_dest( guint src_circuit_id
}
- /* looks up a circuit_t and an iax_call for this packet */
-static iax_call_data *iax_lookup_circuit_details( packet_info *pinfo,
- guint32 scallno,
- guint32 dcallno,
- gboolean *reversed_p,
- circuit_t **circuit_p)
+/* looks up an iax_call for this packet */
+static iax_call_data *iax_lookup_call( packet_info *pinfo,
+ guint32 scallno,
+ guint32 dcallno,
+ gboolean *reversed_p)
{
gboolean reversed = FALSE;
iax_call_data *iax_call = NULL;
guint src_circuit_id;
- circuit_t *src_circuit = NULL;
#ifdef DEBUG_HASHING
g_message( "++ iax_lookup_circuit_details: Looking up circuit for frame %u, "
@@ -747,8 +763,10 @@ static iax_call_data *iax_lookup_circuit_details( packet_info *pinfo,
dst_circuit_id = iax_circuit_lookup(&pinfo->dst,pinfo->ptype,
pinfo->destport,dcallno);
- iax_call = iax_lookup_circuit_details_from_dest(src_circuit_id, dst_circuit_id, pinfo->fd->num, &reversed, &src_circuit);
+ iax_call = iax_lookup_call_from_dest(src_circuit_id, dst_circuit_id,
+ pinfo->fd->num, &reversed);
} else {
+ circuit_t *src_circuit;
/* in all other circumstances, the source circuit should already
* exist: its absense indicates that we missed the all-important NEW
@@ -766,9 +784,9 @@ static iax_call_data *iax_lookup_circuit_details( packet_info *pinfo,
iax call data to it; assert this */
DISSECTOR_ASSERT(iax_call);
- if( src_circuit_id == iax_call -> forward_circuit_id )
+ if( is_forward_circuit(src_circuit_id,iax_call))
reversed = FALSE;
- else if ( src_circuit_id == iax_call -> reverse_circuit_id )
+ else if(is_reverse_circuit(src_circuit_id,iax_call))
reversed = TRUE;
else {
/* there's also no way we can attach an iax_call_data to a circuit
@@ -780,23 +798,12 @@ static iax_call_data *iax_lookup_circuit_details( packet_info *pinfo,
}
}
- if(src_circuit && iax_call) {
- /* info for subdissectors. We always pass on the forward circuit,
- * and steal the p2p_dir flag to indicate the direction */
- pinfo -> ctype = CT_IAX2;
- pinfo -> circuit_id = (guint32)iax_call->forward_circuit_id;
- pinfo -> p2p_dir = reversed?P2P_DIR_RECV:P2P_DIR_SENT;
- }
-
if(reversed_p)
*reversed_p = reversed;
- if(circuit_p)
- *circuit_p = src_circuit;
-
#ifdef DEBUG_HASHING
if( iax_call ) {
- g_message( "++ Found call for packet: id %u, reversed=%c", iax_call->callno, reversed?'1':'0' );
+ g_message( "++ Found call for packet: id %u, reversed=%c", iax_call->iax_forward_circuit_ids[0], reversed?'1':'0' );
} else {
g_message( "++ Call not found. Must have missed the NEW packet?" );
}
@@ -809,11 +816,9 @@ static iax_call_data *iax_lookup_circuit_details( packet_info *pinfo,
/* handles a NEW packet by creating a new iax call and forward circuit.
the reverse circuit is not created until the ACK is received and
is created by iax_lookup_circuit_details. */
-static iax_call_data *iax_new_circuit_details( packet_info *pinfo,
- guint32 scallno,
- circuit_t **circuit_p)
+static iax_call_data *iax_new_call( packet_info *pinfo,
+ guint32 scallno)
{
- circuit_t *circuit;
iax_call_data *call;
guint circuit_id;
@@ -821,31 +826,20 @@ static iax_call_data *iax_new_circuit_details( packet_info *pinfo,
g_message( "+ new_circuit: Handling NEW packet, frame %u", pinfo->fd->num );
#endif
- circuit_id = iax_circuit_lookup(&pinfo->src,pinfo->ptype,
- pinfo->srcport,scallno);
-
- circuit = circuit_new(CT_IAX2,
- circuit_id,
- pinfo->fd->num );
-
+ circuit_id = iax_circuit_lookup(&pinfo->src,pinfo->ptype,
+ pinfo->srcport,scallno);
-
- call = g_mem_chunk_alloc(iax_call_datas);
- call -> dataformat = 0;
- call -> src_codec = 0;
- call -> dst_codec = 0;
- call -> forward_circuit_id = circuit_id;
- call -> reverse_circuit_id = 0;
- call -> callno = ++callcount;
-
-#ifdef DEBUG_HASHING
- g_message( "+ new_circuit: Added new circuit for new call %u", call -> callno );
-#endif
-
- circuit_add_proto_data( circuit, proto_iax2, call );
-
- if( circuit_p )
- *circuit_p = circuit;
+ call = g_mem_chunk_alloc(iax_call_datas);
+ call -> dataformat = 0;
+ call -> src_codec = 0;
+ call -> dst_codec = 0;
+ call -> n_forward_circuit_ids = 0;
+ call -> n_reverse_circuit_ids = 0;
+ call -> subdissector = NULL;
+ call -> start_time.secs = pinfo->fd->abs_secs;
+ call -> start_time.nsecs = (pinfo->fd->abs_usecs-1000) * 1000;
+
+ iax2_new_circuit_for_call(circuit_id,pinfo->fd->num,call,FALSE);
return call;
}
@@ -855,23 +849,66 @@ static iax_call_data *iax_new_circuit_details( packet_info *pinfo,
/* per-packet data */
typedef struct iax_packet_data {
+ gboolean first_time; /* we're dissecting this packet for the first time; so
+ things like codec and transfer requests should be
+ propogated into the call data */
iax_call_data *call_data;
guint32 codec;
+ gboolean reversed;
+ nstime_t abstime; /* the absolute time of this packet, based on its
+ * timestamp and the NEW packet's time (-1 if unknown) */
} iax_packet_data;
static GMemChunk *iax_packets = NULL;
-static iax_packet_data *iax_new_packet_data(iax_call_data *call)
+static iax_packet_data *iax_new_packet_data(iax_call_data *call, gboolean reversed)
{
iax_packet_data *p = g_mem_chunk_alloc(iax_packets);
+ p->first_time=TRUE;
p->call_data=call;
p->codec=0;
+ p->reversed=reversed;
+ p->abstime.secs=-1;
+ p->abstime.nsecs=-1;
return p;
}
+static void iax2_populate_pinfo_from_packet_data(packet_info *pinfo, const iax_packet_data * p)
+{
+ /* info for subdissectors. We always pass on the original forward circuit,
+ * and steal the p2p_dir flag to indicate the direction */
+ if( p->call_data == NULL ) {
+ /* if we missed the NEW packet for this call, call_data will be null. it's
+ * tbd what the best thing to do here is. */
+ pinfo -> ctype = CT_NONE;
+ } else {
+ pinfo -> ctype = CT_IAX2;
+ pinfo -> circuit_id = (guint32)p->call_data->forward_circuit_ids[0];
+ pinfo -> p2p_dir = p->reversed?P2P_DIR_RECV:P2P_DIR_SENT;
+
+ if (check_col (pinfo->cinfo, COL_CIRCUIT_ID)) {
+ col_set_str (pinfo->cinfo, COL_CIRCUIT_ID, "" );
+ col_add_fstr(pinfo->cinfo, COL_CIRCUIT_ID, "%u", pinfo->circuit_id);
+ }
+ if (check_col (pinfo->cinfo, COL_IF_DIR))
+ col_set_str (pinfo->cinfo, COL_IF_DIR, p->reversed ? "rev" : "fwd" );
+ }
+}
+
/* ************************************************************************* */
+/* this is passed up from the IE dissector to the main dissector */
+typedef struct
+{
+ address peer_address;
+ port_type peer_ptype;
+ guint32 peer_port;
+ guint32 peer_callno;
+ guint32 dataformat;
+} iax2_ie_data;
+
+
static guint32 dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
guint16 scallno,
packet_info * pinfo,
@@ -986,31 +1023,49 @@ dissect_iax2 (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
proto_item_set_len(iax2_item, len);
}
+static proto_item *dissect_datetime_ie(tvbuff_t *tvb, guint32 offset, proto_tree *ies_tree)
+{
+ struct tm tm;
+ guint32 ie_val;
+ nstime_t datetime;
+
+ proto_tree_add_item (ies_tree, hf_iax2_ies[IAX_IE_DATETIME], tvb, offset + 2, 4, FALSE);
+ ie_val = tvb_get_ntohl(tvb, offset+2);
+
+ /* who's crazy idea for a time encoding was this? */
+ tm.tm_sec = (ie_val & 0x1f) << 1;
+ tm.tm_min = (ie_val>>5) & 0x3f;
+ tm.tm_hour = (ie_val>>11) & 0x1f;
+ tm.tm_mday = (ie_val>>16) & 0x1f;
+ tm.tm_mon = ((ie_val>>21) & 0xf) - 1;
+ tm.tm_year = ((ie_val>>25) & 0x7f) + 100;
+ tm.tm_isdst= -1; /* there's no info on whether DST was in force; assume it's
+ * the same as currently */
+
+ datetime.secs = mktime(&tm);
+ datetime.nsecs = 0;
+ return proto_tree_add_time (ies_tree, hf_iax2_ie_datetime, tvb, offset+2, 4, &datetime);
+}
+
/* dissect the information elements in an IAX frame. Returns the updated offset */
static guint32 dissect_ies (tvbuff_t * tvb, guint32 offset,
proto_tree * iax_tree,
- iax_call_data *iax_call_data )
+ iax2_ie_data *ie_data)
{
- proto_tree *sockaddr_tree = NULL;
- proto_item *sockaddr_item = 0;
-
-
+ DISSECTOR_ASSERT(ie_data);
+
while (offset < tvb_reported_length (tvb)) {
int ies_type = tvb_get_guint8(tvb, offset);
int ies_len = tvb_get_guint8(tvb, offset + 1);
if( iax_tree ) {
- proto_item *ti;
+ proto_item *ti, *ie_item = NULL;
proto_tree *ies_tree;
+ int ie_hf = hf_iax2_ies[ies_type];
- ti = proto_tree_add_text(iax_tree, tvb, offset, ies_len+2,
- "Information Element: %s (0x%02X)",
- val_to_str(ies_type, iax_ies_type,
- "Unknown information element"),
- ies_type);
-
+ ti = proto_tree_add_text(iax_tree, tvb, offset, ies_len+2, " " );
ies_tree = proto_item_add_subtree(ti, ett_iax2_ie);
@@ -1021,295 +1076,165 @@ static guint32 dissect_ies (tvbuff_t * tvb, guint32 offset,
proto_tree_add_text(ies_tree, tvb, offset+1, 1, "Length: %u",ies_len);
+ /* hf_iax2_ies[] is an array, indexed by IE number, of header-fields, one
+ per IE. Apart from a couple of special cases which require more
+ complex decoding, we can just look up an entry from the array, and add
+ the relevant item.
+ */
+
switch (ies_type) {
- case IAX_IE_CALLED_NUMBER:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLED_NUMBER, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CALLING_NUMBER:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLING_NUMBER,
- tvb, offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CALLING_ANI:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLING_ANI, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CALLING_NAME:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLING_NAME, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CALLED_CONTEXT:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLED_CONTEXT,
- tvb, offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_USERNAME:
- proto_tree_add_item (ies_tree, hf_IAX_IE_USERNAME, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_PASSWORD:
- proto_tree_add_item (ies_tree, hf_IAX_IE_PASSWORD, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_LANGUAGE:
- proto_tree_add_item (ies_tree, hf_IAX_IE_LANGUAGE, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_DNID:
- proto_tree_add_item (ies_tree, hf_IAX_IE_DNID, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CHALLENGE:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CHALLENGE, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_MD5_RESULT:
- proto_tree_add_item (ies_tree, hf_IAX_IE_MD5_RESULT, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_RSA_RESULT:
- proto_tree_add_item (ies_tree, hf_IAX_IE_RSA_RESULT, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_RDNIS:
- proto_tree_add_item (ies_tree, hf_IAX_IE_RDNIS, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CAPABILITY:
+ case IAX_IE_DATETIME:
+ ie_item = dissect_datetime_ie(tvb,offset,ies_tree);
+ break;
+
+
+ case IAX_IE_CAPABILITY:
+ {
+ proto_tree *codec_tree;
+
+ if (ies_len != 4) THROW(ReportedBoundsError);
+
+ ie_item =
+ proto_tree_add_item (ies_tree, ie_hf,
+ tvb, offset + 2, ies_len, FALSE);
+ codec_tree =
+ proto_item_add_subtree (ie_item, ett_iax2_codecs);
+
+ proto_tree_add_item(codec_tree, hf_iax2_cap_g723_1, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_gsm, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_ulaw, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_alaw, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_g726, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_adpcm, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_slinear, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_lpc10, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_g729a, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_speex, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_ilbc, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_jpeg, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_png, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_h261, tvb, offset + 2, ies_len, FALSE );
+ proto_tree_add_item(codec_tree, hf_iax2_cap_h263, tvb, offset + 2, ies_len, FALSE );
+ break;
+ }
+
+ case IAX_IE_APPARENT_ADDR:
+ {
+ proto_tree *sockaddr_tree = NULL;
+ guint16 family;
+
+ ie_item = proto_tree_add_text(ies_tree, tvb, offset + 2, 16, "Apparent Address");
+ sockaddr_tree = proto_item_add_subtree(ie_item, ett_iax2_ies_apparent_addr);
+
+ /* the family is little-endian. That's probably broken, given
+ everything else is big-endian, but that's not our fault.
+ */
+ family = tvb_get_letohs(tvb, offset+2);
+ proto_tree_add_uint(sockaddr_tree, hf_IAX_IE_APPARENTADDR_SINFAMILY, tvb, offset + 2, 2, family);
+
+ switch( family ) {
+ /* these come from linux/socket.h */
+ case 2: /* AF_INET */
{
- proto_tree *codec_tree;
- proto_item *codec_base;
-
- if (ies_len != 4) THROW(ReportedBoundsError);
- codec_base =
- proto_tree_add_item (ies_tree, hf_IAX_IE_CAPABILITY,
- tvb, offset + 2, ies_len, FALSE);
- codec_tree =
- proto_item_add_subtree (codec_base, ett_iax2_codecs);
+ /* the ip address is big-endian, but then so is address.data */
+ SET_ADDRESS(&ie_data->peer_address,AT_IPv4,4,tvb_get_ptr(tvb,offset+6,4));
- proto_tree_add_item(codec_tree, hf_iax2_cap_g723_1, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_gsm, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_ulaw, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_alaw, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_g726, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_adpcm, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_slinear, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_lpc10, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_g729a, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_speex, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_ilbc, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_jpeg, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_png, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_h261, tvb, offset + 2, ies_len, FALSE );
- proto_tree_add_item(codec_tree, hf_iax2_cap_h263, tvb, offset + 2, ies_len, FALSE );
+ /* IAX is always over UDP */
+ ie_data->peer_ptype = PT_UDP;
+ ie_data->peer_port = tvb_get_ntohs(tvb, offset+4);
+ proto_tree_add_uint(sockaddr_tree, hf_IAX_IE_APPARENTADDR_SINPORT, tvb, offset + 4, 2, ie_data->peer_port);
+ proto_tree_add_ipv4(sockaddr_tree, hf_IAX_IE_APPARENTADDR_SINADDR, tvb, offset + 6, 4, *(guint32 *)(&ie_data->peer_address.data));
break;
}
- case IAX_IE_FORMAT:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_FORMAT, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_VERSION:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_VERSION, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_ADSICPE:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_ADSICPE, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_AUTHMETHODS:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_AUTHMETHODS, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_APPARENT_ADDR:
- sockaddr_item = proto_tree_add_text(ies_tree, tvb, offset + 2, 16, "Apparent Address");
- sockaddr_tree = proto_item_add_subtree(sockaddr_item, ett_iax2_ies_apparent_addr);
- proto_tree_add_item(sockaddr_tree, hf_IAX_IE_APPARENTADDR_SINADDR, tvb, offset + 6, 4, FALSE);
- proto_tree_add_item(sockaddr_tree, hf_IAX_IE_APPARENTADDR_SINPORT, tvb, offset + 4, 2, FALSE);
- break;
- case IAX_IE_REFRESH:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_REFRESH, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_DPSTATUS:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_DPSTATUS, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CALLNO:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLNO, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_CAUSE:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CAUSE, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_IAX_UNKNOWN:
- proto_tree_add_item (ies_tree, hf_IAX_IE_IAX_UNKNOWN, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_MSGCOUNT:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_MSGCOUNT, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_AUTOANSWER:
- proto_tree_add_item (ies_tree, hf_IAX_IE_AUTOANSWER, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_MUSICONHOLD:
- proto_tree_add_item (ies_tree, hf_IAX_IE_MUSICONHOLD, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_TRANSFERID:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_TRANSFERID, tvb,
- offset + 2, ies_len, FALSE);
- break;
- case IAX_IE_PROVISIONING:
- proto_tree_add_item (ies_tree, hf_IAX_IE_PROVISIONING, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_AESPROVISIONING:
- proto_tree_add_item (ies_tree, hf_IAX_IE_AESPROVISIONING, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_DATETIME:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_DATETIME, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_DEVICETYPE:
- proto_tree_add_item (ies_tree, hf_IAX_IE_DEVICETYPE, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_SERVICEIDENT:
- proto_tree_add_item (ies_tree, hf_IAX_IE_SERVICEIDENT, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_FIRMWAREVER:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_FIRMWAREVER, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_FWBLOCKDESC:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_FWBLOCKDESC, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_FWBLOCKDATA:
- proto_tree_add_item (ies_tree, hf_IAX_IE_FWBLOCKDATA, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_PROVVER:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_PROVVER, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_CALLINGPRES:
- if (ies_len != 1) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLINGPRES, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_CALLINGTON:
- if (ies_len != 1) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLINGTON, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_CALLINGTNS:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_CALLINGTNS, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_SAMPLINGRATE:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_SAMPLINGRATE, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_CAUSECODE:
- if (ies_len != 1) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_CAUSECODE, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_ENCRYPTION:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_ENCRYPTION, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_ENCKEY:
- proto_tree_add_item (ies_tree, hf_IAX_IE_ENCKEY, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_CODEC_PREFS:
- proto_tree_add_item (ies_tree, hf_IAX_IE_CODEC_PREFS, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_RR_JITTER:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_RR_JITTER, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_RR_LOSS:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_RR_LOSS, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_RR_PKTS:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_RR_PKTS, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_RR_DELAY:
- if (ies_len != 2) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_RR_DELAY, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_RR_DROPPED:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_RR_DROPPED, tvb,
- offset +2, ies_len, FALSE);
- break;
- case IAX_IE_RR_OOO:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_RR_OOO, tvb,
- offset +2, ies_len, FALSE);
+
+ default:
+ g_warning("Not supported in IAX dissector: peer address family of %u", family);
break;
-
- case IAX_IE_DATAFORMAT:
- if (ies_len != 4) THROW(ReportedBoundsError);
- proto_tree_add_item (ies_tree, hf_IAX_IE_DATAFORMAT, tvb,
- offset + 2, ies_len, FALSE);
-
- if( iax_call_data )
- iax_call_data -> dataformat = tvb_get_ntohl(tvb, offset+2);
-
- break;
-
- default:
- {
- switch(ies_len) {
- case 1:
- proto_tree_add_item( ies_tree, hf_IAX_IE_UNKNOWN_BYTE, tvb, offset+2, ies_len, FALSE );
+ }
break;
+ }
+
+ case IAX_IE_DATAFORMAT:
+ if (ies_len != 4) THROW(ReportedBoundsError);
+ ie_item = proto_tree_add_item (ies_tree, ie_hf, tvb,
+ offset + 2, ies_len, FALSE);
+ ie_data -> dataformat = tvb_get_ntohl(tvb, offset+2);
+ break;
+
+ default:
+ if( ie_hf != -1 ) {
+ /* throw an error if the IE isn't the expected length */
+ gint explen = ftype_length(proto_registrar_get_nth(ie_hf)->type);
+ if(explen != 0 && ies_len != explen)
+ THROW(ReportedBoundsError);
+ ie_item = proto_tree_add_item(ies_tree, ie_hf, tvb, offset + 2, ies_len, FALSE);
+ } else {
+ /* we don't understand this ie: add a generic one */
+ guint32 value;
+ const guint8 *ptr;
+ const guint8 *ie_name = val_to_str(ies_type, iax_ies_type, "Unknown");
- case 2:
- proto_tree_add_item( ies_tree, hf_IAX_IE_UNKNOWN_I16, tvb, offset+2, ies_len, FALSE );
- break;
+ switch(ies_len) {
+ case 1:
+ value = tvb_get_guint8(tvb, offset + 2);
+ ie_item =
+ proto_tree_add_uint_format(ies_tree, hf_IAX_IE_UNKNOWN_BYTE,
+ tvb, offset+2, 1, value,
+ "%s: %#02x", ie_name, value );
+ break;
+
+ case 2:
+ value = tvb_get_ntohs(tvb, offset + 2);
+ ie_item =
+ proto_tree_add_uint_format(ies_tree, hf_IAX_IE_UNKNOWN_I16,
+ tvb, offset+2, 2, value,
+ "%s: %#04x", ie_name, value );
+ break;
- case 4:
- proto_tree_add_item( ies_tree, hf_IAX_IE_UNKNOWN_I32, tvb, offset+2, ies_len, FALSE );
+ case 4:
+ value = tvb_get_ntohl(tvb, offset + 2);
+ ie_item =
+ proto_tree_add_uint_format(ies_tree, hf_IAX_IE_UNKNOWN_I32,
+ tvb, offset+2, 4, value,
+ "%s: %#08x", ie_name, value );
+ break;
+
+ default:
+ ptr = tvb_get_ptr(tvb, offset + 2, ies_len);
+ ie_item =
+ proto_tree_add_string_format(ies_tree, hf_IAX_IE_UNKNOWN_BYTES,
+ tvb, offset+2, ies_len, ptr,
+ "%s: %s", ie_name, ptr );
+ break;
+ }
+ }
break;
+ }
- default:
- proto_tree_add_item( ies_tree, hf_IAX_IE_UNKNOWN_BYTES, tvb, offset+2, ies_len, FALSE );
+ /* by now, we *really* ought to have added an item */
+ DISSECTOR_ASSERT(ie_item != NULL);
+
+ /* Retrieve the text from the item we added, and append it to the main IE
+ * item */
+ if(!PROTO_ITEM_IS_HIDDEN(ti)) {
+ field_info *ie_finfo = PITEM_FINFO(ie_item);
+
+ /* if the representation of the item has already been set, use that;
+ else we have to allocate a block to put the text into */
+ if( ie_finfo -> rep != NULL )
+ proto_item_set_text(ti, "Information Element: %s",
+ ie_finfo->rep->representation);
+ else {
+ guint8 *ie_val = NULL;
+ ie_val = g_malloc(ITEM_LABEL_LENGTH);
+ proto_item_fill_label(ie_finfo, ie_val);
+ proto_item_set_text(ti, "Information Element: %s",
+ ie_val);
+ g_free(ie_val);
}
}
- }
}
+
offset += ies_len + 2;
}
return offset;
@@ -1329,7 +1254,99 @@ static guint32 uncompress_subclass(guint8 csub)
return (guint32)csub;
}
+/* returns the new offset */
+static guint32 dissect_iax2_command(tvbuff_t * tvb, guint32 offset,
+ packet_info * pinfo, proto_tree *tree,
+ iax_packet_data *iax_packet)
+{
+ guint8 csub = tvb_get_guint8(tvb, offset);
+ guint8 address_data[MAX_ADDRESS];
+ iax2_ie_data ie_data = {{AT_NONE,0,address_data},0,0,0,(guint32)-1};
+ iax_call_data *iax_call = iax_packet -> call_data;
+
+ /* add the subclass */
+ proto_tree_add_uint (tree, hf_iax2_iax_csub, tvb, offset, 1, csub);
+ offset++;
+
+ if (check_col (pinfo->cinfo, COL_INFO))
+ col_append_fstr (pinfo->cinfo, COL_INFO, " %s",
+ val_to_str (csub, iax_iax_subclasses, "unknown (0x%02x)"));
+
+ if (offset >= tvb_reported_length (tvb))
+ return offset;
+
+ offset += dissect_ies(tvb, offset, tree, &ie_data);
+
+ /* if this is a data call, set up a subdissector for the circuit */
+ if(iax_call && ie_data.dataformat != (guint32)-1 && iax_call -> subdissector == NULL) {
+ iax_call -> subdissector = dissector_get_port_handle(iax2_dataformat_dissector_table, ie_data.dataformat );
+ iax_call -> dataformat = ie_data.dataformat;
+ }
+
+ /* if this is a transfer request, record it in the call data */
+ if( csub == IAX_COMMAND_TXREQ && iax_packet -> first_time ) {
+ if( ie_data.peer_address.type != AT_NONE && ie_data.peer_callno != 0 ) {
+ guint tx_circuit = iax_circuit_lookup(&ie_data.peer_address,
+ ie_data.peer_ptype,
+ ie_data.peer_port,
+ ie_data.peer_callno);
+
+#if 0
+ g_message("found transfer request for call %u->%u, to new id %u",
+ iax_call->forward_circuit_ids[0],
+ iax_call->reverse_circuit_ids[0],
+ tx_circuit);
+#endif
+
+ iax2_new_circuit_for_call(tx_circuit,pinfo->fd->num,iax_call,iax_packet->reversed);
+ }
+ }
+
+ return offset;
+}
+
+static void iax2_add_ts_fields(packet_info * pinfo, proto_tree * iax2_tree, iax_packet_data *iax_packet, guint16 shortts)
+{
+ guint32 longts = shortts;
+ nstime_t ts;
+ proto_item *item;
+
+ if(iax_packet->call_data == NULL) {
+ /* no call info for this frame; perhaps we missed the NEW packet */
+ return;
+ }
+ if(iax_packet->abstime.secs == -1) {
+ time_t start_secs = iax_packet->call_data->start_time.secs;
+ guint32 abs_secs = start_secs + longts/1000;
+
+ /* deal with short timestamps by assuming that packets are never more than
+ * 16 seconds late */
+ while(abs_secs < pinfo->fd->abs_secs - 16) {
+ longts += 32768;
+ abs_secs = start_secs + longts/1000;
+ }
+
+ iax_packet->abstime.secs=abs_secs;
+ iax_packet->abstime.nsecs=iax_packet->call_data->start_time.nsecs + (longts % 1000) * 1000000;
+ if(iax_packet->abstime.nsecs >= 1000000000) {
+ iax_packet->abstime.nsecs -= 1000000000;
+ iax_packet->abstime.secs ++;
+ }
+ }
+
+ item = proto_tree_add_time(iax2_tree, hf_iax2_absts, NULL, 0, 0, &iax_packet->abstime);
+ PROTO_ITEM_SET_GENERATED(item);
+
+ ts.secs = pinfo->fd->abs_secs;
+ ts.nsecs = pinfo->fd->abs_usecs * 1000;
+ get_timedelta(&ts, &ts, &iax_packet->abstime);
+
+ item = proto_tree_add_time(iax2_tree, hf_iax2_lateness, NULL, 0, 0, &ts);
+ PROTO_ITEM_SET_GENERATED(item);
+}
+
+/* returns the new offset */
static guint32
dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
guint16 scallno,
@@ -1349,8 +1366,6 @@ dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
gboolean reversed;
gboolean rtp_marker;
- circuit_t *circuit;
-
/*
* remove the top bit for retransmission detection
*/
@@ -1368,35 +1383,38 @@ dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
if( type == AST_FRAME_IAX && csub == IAX_COMMAND_NEW ) {
/* NEW packets start a new call */
- iax_call = iax_new_circuit_details(pinfo,scallno,&circuit);
+ iax_call = iax_new_call(pinfo,scallno);
reversed = FALSE;
} else {
- iax_call = iax_lookup_circuit_details(pinfo, scallno, dcallno,
- &reversed, &circuit);
+ iax_call = iax_lookup_call(pinfo, scallno, dcallno,
+ &reversed);
}
- iax_packet = iax_new_packet_data(iax_call);
+ iax_packet = iax_new_packet_data(iax_call, reversed);
p_add_proto_data(pinfo->fd,proto_iax2,iax_packet);
} else {
iax_call = iax_packet->call_data;
-
- /*
- * XXX - the code needs to set "circuit" and "reversed" somehow here,
- * by determining them based on values in "iax_call" or "iax_packet".
- * I leave that as an exercise for somebody who wants to maintain
- * this code.
- */
- circuit = NULL;
- reversed = FALSE;
+ reversed = iax_packet->reversed;
}
-
+
+ iax2_populate_pinfo_from_packet_data(pinfo, iax_packet);
+
if( iax2_tree ) {
proto_item *packet_type_base;
proto_tree_add_item (iax2_tree, hf_iax2_dcallno, tvb, offset, 2, FALSE );
+
proto_tree_add_boolean(iax2_tree, hf_iax2_retransmission, tvb, offset, 2, FALSE );
+ if( iax_call ) {
+ proto_item *item =
+ proto_tree_add_uint (iax2_tree, hf_iax2_callno, tvb, 0, 4,
+ iax_call->forward_circuit_ids[0] );
+ PROTO_ITEM_SET_GENERATED(item);
+ }
+
proto_tree_add_uint (iax2_tree, hf_iax2_ts, tvb, offset+2, 4, ts);
+ iax2_add_ts_fields(pinfo, iax2_tree, iax_packet, (guint16)ts);
proto_tree_add_item (iax2_tree, hf_iax2_oseqno, tvb, offset+6, 1,
FALSE);
@@ -1419,29 +1437,11 @@ dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
switch( type ) {
case AST_FRAME_IAX:
- /* add the subclass */
- proto_tree_add_uint (packet_type_tree, hf_iax2_iax_csub, tvb,
- offset+9, 1, csub);
- offset += 10;
-
- if (check_col (pinfo->cinfo, COL_INFO))
- col_append_fstr (pinfo->cinfo, COL_INFO, " %s",
- val_to_str (csub, iax_iax_subclasses, "unknown (0x%02x)"));
-
- if (offset < tvb_reported_length (tvb)) {
- offset += dissect_ies(tvb, offset, packet_type_tree, iax_call);
- }
-
- if( csub == IAX_COMMAND_NEW && circuit && iax_call ) {
- /* if this is a data call, set up a subdissector for the circuit */
- dissector_handle_t s;
- s = dissector_get_port_handle(iax2_dataformat_dissector_table, iax_call -> dataformat );
- circuit_set_dissector( circuit, s );
- }
+ offset=dissect_iax2_command(tvb,offset+9,pinfo,packet_type_tree,iax_packet);
break;
-
+
case AST_FRAME_DTMF:
- proto_tree_add_text (packet_type_tree, tvb, offset+9, 1, "DTMF digit: %c", csub);
+ proto_tree_add_item (packet_type_tree, hf_iax2_dtmf_csub, tvb, offset+9, 1, FALSE);
offset += 10;
if (check_col (pinfo->cinfo, COL_INFO))
@@ -1494,7 +1494,7 @@ dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
offset += 10;
- if( iax_call ) {
+ if( iax_call && iax_packet -> first_time ) {
if( reversed ) {
iax_call->dst_vformat = codec;
} else {
@@ -1520,6 +1520,10 @@ dissect_fullpacket (tvbuff_t * tvb, guint32 offset,
break;
}
+ /* next time we come to parse this packet, don't propogate the codec into the
+ * call_data */
+ iax_packet->first_time = FALSE;
+
return offset;
}
@@ -1533,12 +1537,11 @@ static iax_packet_data *iax2_get_packet_data_for_minipacket(packet_info * pinfo,
if( !p ) {
/* if not, find or create an iax_call info structure for this IAX session. */
gboolean reversed;
- circuit_t *circuit;
iax_call_data *iax_call;
- iax_call = iax_lookup_circuit_details(pinfo, scallno, 0, &reversed, &circuit);
+ iax_call = iax_lookup_call(pinfo, scallno, 0, &reversed);
- p = iax_new_packet_data(iax_call);
+ p = iax_new_packet_data(iax_call,reversed);
p_add_proto_data(pinfo->fd,proto_iax2,p);
/* set the codec for this frame to be whatever the last full frame used */
@@ -1549,6 +1552,8 @@ static iax_packet_data *iax2_get_packet_data_for_minipacket(packet_info * pinfo,
p->codec = reversed ? iax_call -> dst_codec : iax_call -> src_codec;
}
}
+
+ iax2_populate_pinfo_from_packet_data(pinfo, p);
return p;
}
@@ -1560,6 +1565,7 @@ static guint32 dissect_minivideopacket (tvbuff_t * tvb, guint32 offset,
guint32 ts;
iax_packet_data *iax_packet;
gboolean rtp_marker;
+ proto_item *item;
ts = tvb_get_ntohs(tvb, offset);
@@ -1567,16 +1573,23 @@ static guint32 dissect_minivideopacket (tvbuff_t * tvb, guint32 offset,
rtp_marker = ts & 0x8000 ? TRUE:FALSE;
ts &= ~0x8000;
+ iax_packet = iax2_get_packet_data_for_minipacket(pinfo, scallno, TRUE);
if( iax2_tree ) {
+ if( iax_packet->call_data ) {
+ item =
+ proto_tree_add_uint (iax2_tree, hf_iax2_callno, tvb, 0, 4,
+ iax_packet->call_data->forward_circuit_ids[0] );
+ PROTO_ITEM_SET_GENERATED(item);
+ }
+
proto_tree_add_item (iax2_tree, hf_iax2_minividts, tvb, offset, 2, FALSE);
+ iax2_add_ts_fields(pinfo, iax2_tree, iax_packet, (guint16)ts);
proto_tree_add_item (iax2_tree, hf_iax2_minividmarker, tvb, offset, 2, FALSE);
}
offset += 2;
- iax_packet = iax2_get_packet_data_for_minipacket(pinfo, scallno, TRUE);
-
if (check_col (pinfo->cinfo, COL_INFO))
col_add_fstr (pinfo->cinfo, COL_INFO,
"Mini video packet, source call# %d, timestamp %ums%s",
@@ -1585,6 +1598,10 @@ static guint32 dissect_minivideopacket (tvbuff_t * tvb, guint32 offset,
dissect_payload(tvb, offset, pinfo, main_tree, ts, TRUE, iax_packet);
+ /* next time we come to parse this packet, don't propogate the codec into the
+ * call_data */
+ iax_packet->first_time = FALSE;
+
return offset;
}
@@ -1594,13 +1611,23 @@ dissect_minipacket (tvbuff_t * tvb, guint32 offset, guint16 scallno, packet_info
{
guint32 ts;
iax_packet_data *iax_packet;
+ proto_item *item;
ts = tvb_get_ntohs(tvb, offset);
iax_packet = iax2_get_packet_data_for_minipacket(pinfo, scallno, FALSE);
+
+ if( iax2_tree ) {
+ if( iax_packet->call_data ) {
+ item = proto_tree_add_uint (iax2_tree, hf_iax2_callno, tvb, 0, 4,
+ iax_packet->call_data->forward_circuit_ids[0] );
+ PROTO_ITEM_SET_GENERATED(item);
+ }
+
+ proto_tree_add_uint (iax2_tree, hf_iax2_minits, tvb, offset, 2, ts);
+ iax2_add_ts_fields(pinfo, iax2_tree, iax_packet,(guint16)ts);
+ }
- proto_tree_add_uint (iax2_tree, hf_iax2_minits, tvb, offset, 2,
- ts);
offset += 2;
if (check_col (pinfo->cinfo, COL_INFO))
@@ -1613,6 +1640,10 @@ dissect_minipacket (tvbuff_t * tvb, guint32 offset, guint16 scallno, packet_info
dissect_payload(tvb, offset, pinfo, main_tree, ts, FALSE, iax_packet);
+ /* next time we come to parse this packet, don't propogate the codec into the
+ * call_data */
+ iax_packet->first_time = FALSE;
+
return offset;
}
@@ -1654,9 +1685,10 @@ static void dissect_payload(tvbuff_t *tvb, guint32 offset,
}
/* pass the rest of the block to a subdissector */
- if( !video && try_circuit_dissector(pinfo->ctype, pinfo->circuit_id, pinfo->fd->num,
- sub_tvb, pinfo, tree))
+ if( !video && iax_call && iax_call->subdissector ) {
+ call_dissector(iax_call->subdissector,sub_tvb, pinfo, tree);
return;
+ }
if( codec != 0 && dissector_try_port(iax2_codec_dissector_table, codec, sub_tvb, pinfo, tree ))
return;
@@ -1703,10 +1735,14 @@ proto_register_iax2 (void)
static hf_register_info hf[] = {
{&hf_iax2_packet_type,
- {"Packet type", "iax2.type", FT_UINT8, BASE_DEC, VALS(iax_packet_types), 0,
+ {"Packet type", "iax2.packet_type", FT_UINT8, BASE_DEC, VALS(iax_packet_types), 0,
"Full/minivoice/minivideo/meta packet",
HFILL}},
+ {&hf_iax2_callno,
+ {"Call identifier", "iax2.call", FT_UINT32, BASE_DEC, NULL, 0,
+ "This is the identifier Ethereal assigns to identify this call. It does "
+ "not correspond to any real field in the protocol", HFILL }},
{&hf_iax2_scallno,
{"Source call", "iax2.src_call", FT_UINT16, BASE_DEC, NULL, 0x7FFF,
@@ -1743,6 +1779,17 @@ proto_register_iax2 (void)
"this packet was transmitted",
HFILL}},
+ {&hf_iax2_absts,
+ {"Absolute Time", "iax2.abstime", FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0x0,
+ "The absoulte time of this packet (calculated by adding the IAX timestamp to "
+ " the start time of this call)",
+ HFILL}},
+
+ {&hf_iax2_lateness,
+ {"Lateness", "iax2.lateness", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
+ "The lateness of this packet compared to its timestamp",
+ HFILL}},
+
{&hf_iax2_minividmarker,
{"Marker", "iax2.video.marker", FT_UINT16, BASE_DEC, NULL, 0x8000,
"RTP end-of-frame marker",
@@ -1767,8 +1814,13 @@ proto_register_iax2 (void)
HFILL}},
{&hf_iax2_csub,
- {"Sub-class", "iax2.subclass", FT_UINT8, BASE_DEC, NULL, 0x0,
- "subclass",
+ {"Unknown subclass", "iax2.subclass", FT_UINT8, BASE_DEC, NULL, 0x0,
+ "Subclass of unknown type of full IAX2 frame",
+ HFILL}},
+
+ {&hf_iax2_dtmf_csub,
+ {"DTMF subclass (digit)", "iax2.dtmf.subclass", FT_STRINGZ, BASE_NONE, NULL, 0x0,
+ "DTMF subclass gives the DTMF digit",
HFILL}},
{&hf_iax2_cmd_csub,
@@ -1777,14 +1829,14 @@ proto_register_iax2 (void)
"This gives the command number for a Control packet.", HFILL}},
{&hf_iax2_iax_csub,
- {"IAX type", "iax2.iax.subclass", FT_UINT8, BASE_DEC,
+ {"IAX subclass", "iax2.iax.subclass", FT_UINT8, BASE_DEC,
VALS (iax_iax_subclasses),
0x0,
- "IAX type gives the command number for IAX signalling packets", HFILL}},
+ "IAX subclass gives the command number for IAX signalling packets", HFILL}},
{&hf_iax2_voice_csub,
- {"Sub-class", "iax2.voice.subclass", FT_UINT8, BASE_DEC, NULL, 0x0,
- "subclass",
+ {"Voice Subclass (compressed codec no)", "iax2.voice.subclass", FT_UINT8, BASE_DEC, NULL, 0x0,
+ "Voice Subclass (compressed codec no)",
HFILL}},
{&hf_iax2_voice_codec,
@@ -1793,8 +1845,8 @@ proto_register_iax2 (void)
"CODEC gives the codec used to encode audio data", HFILL}},
{&hf_iax2_video_csub,
- {"Subclass (compressed codec no)", "iax2.video.subclass", FT_UINT8, BASE_DEC, NULL, 0xBF,
- "Subclass (compressed codec no)",
+ {"Video Subclass (compressed codec no)", "iax2.video.subclass", FT_UINT8, BASE_DEC, NULL, 0xBF,
+ "Video Subclass (compressed codec no)",
HFILL}},
{&hf_iax2_marker,
@@ -1816,231 +1868,232 @@ proto_register_iax2 (void)
{"Port", "iax2.iax.app_addr.sinport", FT_UINT16, BASE_DEC, NULL, 0, "Port", HFILL }},
{&hf_IAX_IE_APPARENTADDR_SINADDR,
{"Address", "iax2.iax.app_addr.sinaddr", FT_IPv4, BASE_HEX, NULL, 0, "Address", HFILL }},
- {&hf_IAX_IE_APPARENTADDR_SINZERO,
- {"Zero", "iax2.iax.app_addr.sinzero", FT_BYTES, BASE_HEX, NULL, 0, "Zero", HFILL }},
-
- {&hf_IAX_IE_CALLED_NUMBER,
+
+ {&hf_iax2_ies[IAX_IE_CALLED_NUMBER],
{"Number/extension being called", "iax2.iax.called_number",
FT_STRING,
BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CALLING_NUMBER,
+ {&hf_iax2_ies[IAX_IE_CALLING_NUMBER],
{"Calling number", "iax2.iax.calling_number", FT_STRING,
BASE_NONE, NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_CALLING_ANI,
+ {&hf_iax2_ies[IAX_IE_CALLING_ANI],
{"Calling number ANI for billing", "iax2.iax.calling_ani",
FT_STRING,
BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CALLING_NAME,
+ {&hf_iax2_ies[IAX_IE_CALLING_NAME],
{"Name of caller", "iax2.iax.calling_name", FT_STRING, BASE_NONE,
NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_CALLED_CONTEXT,
+ {&hf_iax2_ies[IAX_IE_CALLED_CONTEXT],
{"Context for number", "iax2.iax.called_context", FT_STRING,
BASE_NONE,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_USERNAME,
+ {&hf_iax2_ies[IAX_IE_USERNAME],
{"Username (peer or user) for authentication",
"iax2.iax.username",
FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_PASSWORD,
+ {&hf_iax2_ies[IAX_IE_PASSWORD],
{"Password for authentication", "iax2.iax.password", FT_STRING,
BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CAPABILITY,
+ {&hf_iax2_ies[IAX_IE_CAPABILITY],
{"Actual codec capability", "iax2.iax.capability", FT_UINT32,
BASE_HEX,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_FORMAT,
+ {&hf_iax2_ies[IAX_IE_FORMAT],
{"Desired codec format", "iax2.iax.format", FT_UINT32, BASE_HEX,
VALS (codec_types), 0x0, "", HFILL}},
- {&hf_IAX_IE_LANGUAGE,
+ {&hf_iax2_ies[IAX_IE_LANGUAGE],
{"Desired language", "iax2.iax.language", FT_STRING, BASE_NONE,
NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_VERSION,
+ {&hf_iax2_ies[IAX_IE_VERSION],
{"Protocol version", "iax2.iax.version", FT_UINT16, BASE_HEX, NULL,
0x0,
"", HFILL}},
- {&hf_IAX_IE_ADSICPE,
+ {&hf_iax2_ies[IAX_IE_ADSICPE],
{"CPE ADSI capability", "iax2.iax.cpe_adsi", FT_UINT16, BASE_HEX,
NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_DNID,
+ {&hf_iax2_ies[IAX_IE_DNID],
{"Originally dialed DNID", "iax2.iax.dnid", FT_STRING, BASE_NONE,
NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_AUTHMETHODS,
+ {&hf_iax2_ies[IAX_IE_AUTHMETHODS],
{"Authentication method(s)", "iax2.iax.auth.methods", FT_UINT16,
BASE_HEX,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CHALLENGE,
+ {&hf_iax2_ies[IAX_IE_CHALLENGE],
{"Challenge data for MD5/RSA", "iax2.iax.auth.challenge",
FT_STRING,
BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_MD5_RESULT,
+ {&hf_iax2_ies[IAX_IE_MD5_RESULT],
{"MD5 challenge result", "iax2.iax.auth.md5", FT_STRING,
BASE_NONE, NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_RSA_RESULT,
+ {&hf_iax2_ies[IAX_IE_RSA_RESULT],
{"RSA challenge result", "iax2.iax.auth.rsa", FT_STRING,
BASE_NONE, NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_REFRESH,
+ {&hf_iax2_ies[IAX_IE_REFRESH],
{"When to refresh registration", "iax2.iax.refresh", FT_INT16,
BASE_DEC,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_DPSTATUS,
+ {&hf_iax2_ies[IAX_IE_DPSTATUS],
{"Dialplan status", "iax2.iax.dialplan_status", FT_UINT16,
BASE_HEX, NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_CALLNO,
- {"Call number of peer", "iax2.iax.call_no", FT_INT16, BASE_DEC,
+ {&hf_iax2_ies[IAX_IE_CALLNO],
+ {"Call number of peer", "iax2.iax.call_no", FT_UINT16, BASE_DEC,
NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_CAUSE,
+ {&hf_iax2_ies[IAX_IE_CAUSE],
{"Cause", "iax2.iax.cause", FT_STRING, BASE_NONE, NULL, 0x0, "",
HFILL}},
- {&hf_IAX_IE_IAX_UNKNOWN,
+ {&hf_iax2_ies[IAX_IE_IAX_UNKNOWN],
{"Unknown IAX command", "iax2.iax.iax_unknown", FT_BYTES,
BASE_HEX, NULL,
0x0, "", HFILL}},
- {&hf_IAX_IE_MSGCOUNT,
+ {&hf_iax2_ies[IAX_IE_MSGCOUNT],
{"How many messages waiting", "iax2.iax.msg_count", FT_INT16,
BASE_DEC,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_AUTOANSWER,
+ {&hf_iax2_ies[IAX_IE_AUTOANSWER],
{"Request auto-answering", "iax2.iax.autoanswer", FT_NONE,
BASE_NONE,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_MUSICONHOLD,
+ {&hf_iax2_ies[IAX_IE_MUSICONHOLD],
{"Request musiconhold with QUELCH", "iax2.iax.moh", FT_NONE,
BASE_NONE,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_TRANSFERID,
+ {&hf_iax2_ies[IAX_IE_TRANSFERID],
{"Transfer Request Identifier", "iax2.iax.transferid", FT_UINT32,
BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RDNIS,
+ {&hf_iax2_ies[IAX_IE_RDNIS],
{"Referring DNIS", "iax2.iax.rdnis", FT_STRING, BASE_NONE, NULL,
0x0, "",
HFILL}},
- {&hf_IAX_IE_PROVISIONING,
+ {&hf_iax2_ies[IAX_IE_PROVISIONING],
{"Provisioning info","iax2.iax.provisioning", FT_STRING, BASE_NONE,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_AESPROVISIONING,
+ {&hf_iax2_ies[IAX_IE_AESPROVISIONING],
{"AES Provisioning info","iax2.iax.aesprovisioning", FT_STRING, BASE_NONE,
NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_DATETIME,
- {"Date/Time", "iax2.iax.datetime", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL}},
+ {&hf_iax2_ies[IAX_IE_DATETIME],
+ {"Date/Time", "iax2.iax.datetime.raw", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL}},
+
+ {&hf_iax2_ie_datetime,
+ {"Date/Time", "iax2.iax.datetime", FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0x0, "", HFILL }},
- {&hf_IAX_IE_DEVICETYPE,
+ {&hf_iax2_ies[IAX_IE_DEVICETYPE],
{"Device type", "iax2.iax.devicetype", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_SERVICEIDENT,
+ {&hf_iax2_ies[IAX_IE_SERVICEIDENT],
{"Service identifier", "iax2.iax.serviceident", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_FIRMWAREVER,
+ {&hf_iax2_ies[IAX_IE_FIRMWAREVER],
{"Firmware version", "iax2.iax.firmwarever", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_FWBLOCKDESC,
+ {&hf_iax2_ies[IAX_IE_FWBLOCKDESC],
{"Firmware block description", "iax2.iax.fwblockdesc", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_FWBLOCKDATA,
+ {&hf_iax2_ies[IAX_IE_FWBLOCKDATA],
{"Firmware block of data", "iax2.iax.fwblockdata", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_PROVVER,
+ {&hf_iax2_ies[IAX_IE_PROVVER],
{"Provisioning version", "iax2.iax.provver", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CALLINGPRES,
+ {&hf_iax2_ies[IAX_IE_CALLINGPRES],
{"Calling presentation", "iax2.iax.callingpres", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CALLINGTON,
+ {&hf_iax2_ies[IAX_IE_CALLINGTON],
{"Calling type of number", "iax2.iax.callington", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CALLINGTNS,
+ {&hf_iax2_ies[IAX_IE_CALLINGTNS],
{"Calling transit network select", "iax2.iax.callingtns", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_SAMPLINGRATE,
+ {&hf_iax2_ies[IAX_IE_SAMPLINGRATE],
{"Supported sampling rates", "iax2.iax.samplingrate", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CAUSECODE,
+ {&hf_iax2_ies[IAX_IE_CAUSECODE],
{"Hangup cause", "iax2.iax.causecode", FT_UINT8, BASE_HEX, VALS(iax_causecodes),
0x0, "", HFILL}},
- {&hf_IAX_IE_ENCRYPTION,
+ {&hf_iax2_ies[IAX_IE_ENCRYPTION],
{"Encryption format", "iax2.iax.encryption", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_ENCKEY,
+ {&hf_iax2_ies[IAX_IE_ENCKEY],
{"Encryption key", "iax2.iax.enckey", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_CODEC_PREFS,
+ {&hf_iax2_ies[IAX_IE_CODEC_PREFS],
{"Codec negotiation", "iax2.iax.codecprefs", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RR_JITTER,
+ {&hf_iax2_ies[IAX_IE_RR_JITTER],
{"Received jitter (as in RFC1889)", "iax2.iax.rrjitter", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RR_LOSS,
+ {&hf_iax2_ies[IAX_IE_RR_LOSS],
{"Received loss (high byte loss pct, low 24 bits loss count, as in rfc1889)", "iax2.iax.rrloss",
FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RR_PKTS,
+ {&hf_iax2_ies[IAX_IE_RR_PKTS],
{"Total frames received", "iax2.iax.rrpkts", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RR_DELAY,
+ {&hf_iax2_ies[IAX_IE_RR_DELAY],
{"Max playout delay in ms for received frames", "iax2.iax.rrdelay", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RR_DROPPED,
+ {&hf_iax2_ies[IAX_IE_RR_DROPPED],
{"Dropped frames (presumably by jitterbuffer)", "iax2.iax.rrdropped", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_RR_OOO,
+ {&hf_iax2_ies[IAX_IE_RR_OOO],
{"Frame received out of order", "iax2.iax.rrooo", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL}},
- {&hf_IAX_IE_DATAFORMAT,
+ {&hf_iax2_ies[IAX_IE_DATAFORMAT],
{"Data call format", "iax2.iax.dataformat", FT_UINT32, BASE_HEX,
VALS(iax_dataformats), 0x0, "", HFILL}},
{&hf_IAX_IE_UNKNOWN_BYTE,
- {"data", "iax2.iax.unknowndata", FT_UINT8, BASE_HEX, NULL,
+ {"Unknown", "iax2.iax.unknownbyte", FT_UINT8, BASE_HEX, NULL,
0x0, "Raw data for unknown IEs",
HFILL}},
{&hf_IAX_IE_UNKNOWN_I16,
- {"data", "iax2.iax.unknowndata", FT_UINT16, BASE_HEX, NULL,
+ {"Unknown", "iax2.iax.unknownshort", FT_UINT16, BASE_HEX, NULL,
0x0, "Raw data for unknown IEs",
HFILL}},
{&hf_IAX_IE_UNKNOWN_I32,
- {"data", "iax2.iax.unknowndata", FT_UINT32, BASE_HEX, NULL,
+ {"Unknown", "iax2.iax.unknownlong", FT_UINT32, BASE_HEX, NULL,
0x0, "Raw data for unknown IEs",
HFILL}},
{&hf_IAX_IE_UNKNOWN_BYTES,
- {"data", "iax2.iax.unknowndata", FT_BYTES, BASE_NONE, NULL,
+ {"Unknown", "iax2.iax.unknownstring", FT_STRING, BASE_NONE, NULL,
0x0, "Raw data for unknown IEs",
HFILL}},
@@ -2130,6 +2183,9 @@ proto_register_iax2 (void)
&ett_iax2_ies_apparent_addr
};
+ /* initialise the hf_iax2_ies[] array to -1 */
+ memset(hf_iax2_ies,0xff,sizeof(hf_iax2_ies));
+
proto_iax2 =
proto_register_protocol ("Inter-Asterisk eXchange v2", "IAX2", "iax2");
proto_register_field_array (proto_iax2, hf, array_length (hf));
diff --git a/epan/nstime.c b/epan/nstime.c
new file mode 100644
index 0000000000..6944329794
--- /dev/null
+++ b/epan/nstime.c
@@ -0,0 +1,92 @@
+/* nstime.c
+ * Routines for manipulating nstime_t structures
+ *
+ * Copyright (c) 2005 MX Telecom Ltd. <richardv@mxtelecom.com>
+ *
+ * $Id$
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "nstime.h"
+
+/* this is #defined so that we can clearly see that we have the right number of
+ zeros, rather than as a guard against the number of nanoseconds in a second
+ changing ;) */
+#define NS_PER_S 1000000000
+
+/*
+ * function: get_timedelta
+ * delta = b - a
+ */
+
+void get_timedelta(nstime_t *delta, const nstime_t *b, const nstime_t *a )
+{
+ if (b->secs == a->secs) {
+ /* The seconds part of b is the same as the seconds part of a, so if
+ the nanoseconds part of the first time is less than the nanoseconds
+ part of a, b is before a. The nanoseconds part of the delta should
+ just be the difference between the nanoseconds part of b and the
+ nanoseconds part of a; don't adjust the seconds part of the delta,
+ as it's OK if the nanoseconds part is negative, and an overflow
+ can never result. */
+ delta->secs = 0;
+ delta->nsecs = b->nsecs - a->nsecs;
+ } else if (b->secs <= a->secs) {
+ /* The seconds part of b is less than the seconds part of a, so b is
+ before a.
+
+ Both the "seconds" and "nanoseconds" value of the delta
+ should have the same sign, so if the difference between the
+ nanoseconds values would be *positive*, subtract 1,000,000,000
+ from it, and add one to the seconds value. */
+ delta->secs = b->secs - a->secs;
+ delta->nsecs = b->nsecs - a->nsecs;
+ if(delta->nsecs > 0) {
+ delta->nsecs -= NS_PER_S;
+ delta->secs ++;
+ }
+ } else {
+ delta->secs = b->secs - a->secs;
+ delta->nsecs = b->nsecs - a->nsecs;
+ if(delta->nsecs < 0) {
+ delta->nsecs += NS_PER_S;
+ delta->secs --;
+ }
+ }
+}
+
+/*
+ * function: get_timesum
+ * sum = a + b
+ */
+
+void get_timesum(nstime_t *sum, const nstime_t *a, const nstime_t *b)
+{
+ sum->secs = a->secs + b->secs;
+ sum->nsecs = a->nsecs + b->nsecs;
+ if(sum->nsecs>=NS_PER_S || (sum->nsecs>0 && sum->secs<0)){
+ sum->nsecs-=NS_PER_S;
+ sum->secs++;
+ } else if(sum->nsecs<=-NS_PER_S || (sum->nsecs<0 && sum->secs>0)) {
+ sum->nsecs+=NS_PER_S;
+ sum->secs--;
+ }
+}
diff --git a/epan/nstime.h b/epan/nstime.h
index 188b96b450..af6a8c7e10 100644
--- a/epan/nstime.h
+++ b/epan/nstime.h
@@ -32,4 +32,27 @@ typedef struct {
int nsecs;
} nstime_t;
+/* functions */
+
+/* calculate the delta between two times
+ *
+ * delta = b-a
+ *
+ * Note that it is acceptable for two or more of the arguments to point at the
+ * same structure.
+ */
+extern void get_timedelta(nstime_t *delta, const nstime_t *b, const nstime_t *a );
+
+/* calculate the sum of two times
+ *
+ * sum = a+b
+ *
+ * Note that it is acceptable for two or more of the arguments to point at the
+ * same structure.
+ */
+extern void get_timesum(nstime_t *sum, const nstime_t *b, const nstime_t *a );
+
+/* sum += a */
+#define addtime(sum, a) get_timesum(sum, sum, b)
+
#endif /* __NSTIME_H__ */
diff --git a/timestats.c b/timestats.c
index 48bb86cf27..18c1c6f58b 100644
--- a/timestats.c
+++ b/timestats.c
@@ -26,36 +26,6 @@
#include "timestats.h"
/*
- * function: get_timedelta
- * delta = b - a
- */
-
-void get_timedelta(nstime_t *delta, const nstime_t *b, const nstime_t *a )
-{
- delta->secs = b->secs - a->secs;
- delta->nsecs= b->nsecs - a->nsecs;
- if(delta->nsecs<0){
- delta->nsecs+=1000000000;
- delta->secs--;
- }
-}
-
-/*
- * function: addtime
- * sum += a
- */
-
-void addtime(nstime_t *sum, const nstime_t *a)
-{
- sum->secs += a->secs;
- sum->nsecs += a->nsecs;
- if(sum->nsecs>1000000000){
- sum->nsecs-=1000000000;
- sum->secs++;
- }
-}
-
-/*
* function: nstime_to_msec
* converts nstime to gdouble, time base is milli seconds
*/
diff --git a/timestats.h b/timestats.h
index c4e9223baa..4a6417f6ba 100644
--- a/timestats.h
+++ b/timestats.h
@@ -43,12 +43,6 @@ typedef struct _timestat_t {
/* functions */
-/* delta = b - a */
-extern void get_timedelta(nstime_t *delta, const nstime_t *b, const nstime_t *a );
-
-/* sum += a */
-extern void addtime(nstime_t *sum, const nstime_t *a);
-
/* converts nstime to gdouble, time base is milli seconds*/
extern gdouble nstime_to_msec(const nstime_t *time);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-22 11:22:25 +0000