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Translate Q.850 Cause values. 

svn path=/trunk/; revision=22602
This commit is contained in:
Anders Broman 2007-08-23 17:00:44 +00:00
parent 2fa88cfca3
commit 7c574cb6e3
1 changed files with 43 additions and 1 deletions
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44
epan/dissectors/packet-sip.c
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@ -58,6 +58,7 @@
#include <epan/req_resp_hdrs.h>
#include <epan/emem.h>
#include "packet-isup.h"
#include "packet-sip.h"
#include <epan/tap.h>
#include <epan/expert.h>
@ -509,6 +510,8 @@ static header_parameter_t via_parameters_hf_array[] =
{"sigcomp-id", &hf_sip_via_sigcomp_id}
};
/*
* Type of line. It's either a SIP Request-Line, a SIP Status-Line, or
* another type of line.
@ -1189,6 +1192,45 @@ dissect_sip_authorization_item(tvbuff_t *tvb, proto_tree *tree, gint start_offse
return current_offset;
}
/* Dissect the details of a Reason header */
static void
dissect_sip_reason_header(tvbuff_t *tvb, proto_tree *tree, gint start_offset, gint line_end_offset){
gint current_offset, semi_colon_offset, length;
gchar *param_name = NULL;
guint cause_value;
/* skip Spaces and Tabs */
start_offset = tvb_skip_wsp(tvb, start_offset, line_end_offset - start_offset);
if (start_offset >= line_end_offset)
{
/* Nothing to parse */
return;
}
current_offset = start_offset;
semi_colon_offset = tvb_find_guint8(tvb, current_offset, line_end_offset-current_offset, ';');
length = semi_colon_offset - current_offset;
proto_tree_add_text(tree, tvb, start_offset, length,
"Reason Protocols: %s", tvb_format_text(tvb, start_offset, length));
param_name = tvb_get_ephemeral_string(tvb, start_offset, length);
if (strcasecmp(param_name, "Q.850") == 0){
current_offset = tvb_find_guint8(tvb, semi_colon_offset, line_end_offset-semi_colon_offset, '=')+1;
length = line_end_offset - current_offset;
/* q850_cause_code_vals */
cause_value = atoi(tvb_get_ephemeral_string(tvb, current_offset, length));
proto_tree_add_text(tree, tvb, current_offset, length,
"Cause: %u(0x%x)[%s]", cause_value,cause_value,
val_to_str(cause_value, q850_cause_code_vals, "Unknown (%d)" ));
}
}
/* Dissect the details of a Via header */
static void dissect_sip_via_header(tvbuff_t *tvb, proto_tree *tree, gint start_offset, gint line_end_offset)
{
@ -2319,7 +2361,7 @@ separator_found2:
tvb_format_text(tvb, offset, linelen));
reason_tree = proto_item_add_subtree(ti, ett_sip_reason);
}
semi_colon_offset = tvb_find_guint8(tvb, value_offset, value_len, ';');
dissect_sip_reason_header(tvb, reason_tree, value_offset, line_end_offset);
break;
default :
/* Default case is to assume its an FT_STRING field */