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Try to dissect the Topology Descriptor before the command 

This fixes bug 2665

svn path=/trunk/; revision=26620
This commit is contained in:
Balint Reczey 2008-10-30 09:53:43 +00:00
parent be69cc2732
commit f763c88092
1 changed files with 30 additions and 0 deletions
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30
epan/dissectors/packet-megaco.c
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@ -881,6 +881,36 @@ nextcontext:
tvb_next_offset = tvb_command_start_offset + tokenlen;
/* Try to dissect Topology Descriptor before the command */
if ( tvb_get_guint8(tvb, tvb_command_start_offset ) == 'T') {
tempchar = tvb_get_guint8(tvb, tvb_command_start_offset+1);
if ( (tempchar >= 'a')&& (tempchar <= 'z'))
tempchar = tempchar - 0x20;
if ( tempchar == 'P' || tempchar == 'O'){
tvb_command_end_offset = tvb_find_guint8(tvb, tvb_command_start_offset, tvb_len, '}');
tvb_command_start_offset = tvb_find_guint8(tvb, tvb_command_start_offset, tvb_len, '{');
dissect_megaco_topologydescriptor(tvb, megaco_tree_command_line, tvb_command_end_offset-1, tvb_command_start_offset+1);
tvb_next_offset = tvb_command_end_offset;
/* Command after Topology Descriptor */
tvb_command_start_offset = tvb_find_guint8(tvb, tvb_command_end_offset +1,
tvb_len, ',');
if ( tvb_command_start_offset == -1 ){
/* No Command present after Topology Descriptor */
break;
} else {
/* Try to find the first char of the command */
tvb_command_start_offset = megaco_tvb_skip_wsp_return(tvb, tvb_command_start_offset + 1);
}
}
}
/* Additional value */
if ( tvb_get_guint8(tvb, tvb_command_start_offset ) == 'O'){