Wireshark-bugs: [Wireshark-bugs] [Bug 8594] Adding support for IEEE-802.11ad protocol at the cur

Date: Sat, 20 Apr 2013 15:46:06 +0000

Comment # 5 on bug 8594 from
(In reply to comment #4)
> Hi Jalil, in general it looks fine.
> 
> However, I noticed you do a lot of proto_tree_add_bool and
> proto_tree_add_uint with data retrieved unmodified from the tvb. In this
> case it is faster and more efficient to simply use proto_tree_add_item and
> let Wireshark handle fetching the data. For those fields that are only a few
> bits you can add a bitmask to the hf array entries instead of manually
> masking in the dissector code.
> 
+ 1

Also I have some warning when i launch Wireshark with your sample  
Warn Extended value string frame_type_subtype_vals forced to fall back to
linear search: entry 24, value 23 < previous entry, value 362
Warn Extended value string tag_num_vals forced to fall back to linear search:
entry 129, value 143 < previous entry, value 221
Warn Extended value string category_codes forced to fall back to linear search:
entry 19, value 16 < previous entry, value 127


Also checkhf is not happy 
Unused entry: epan/dissectors/packet-ieee80211.c,
hf_ieee80211_ff_sswf_dmg_select
Unused entry: epan/dissectors/packet-ieee80211.c,
hf_ieee80211_ff_sswf_sector_select
Unused entry: epan/dissectors/packet-ieee80211.c,
hf_ieee80211_ff_sswf_snr_report

Also why readd some static const true_false_string (dsss_ofdm_flags,
cf_apsd_flags... )? 

I have some warning also with clang analyser tools 
packet-ieee80211.c:13843:11: warning: Value stored to 'offset' is never read
packet-ieee80211.c:13832:17: warning: Value stored to 'offset' is never read
packet-ieee80211.c:13848:4: warning: Value stored to 'offset' is never read
packet-ieee80211.c:13862:11: warning: Value stored to 'offset' is never read
packet-ieee80211.c:13855:4: warning: Value stored to 'offset' is never read

Check also your indent (the file use 2 spaces indent) and there is some
trailing whitespaces...
(From Git : warning: squelched 114 whitespace errors, warning: 119 lines add
whitespace errors. ) 

About allocation_duration_base_custom function, use beacon_interval_base_custom
function (rename if it is needed)

Also there is some typo error : Changing control frame extension for extesion
frames */ or  +     {"Low Power SC PHY Supported",
"wlan.dmg_capa.low_power_suuported", or +     
add_tag_relay_capableities(tag_len, tree, tvb, &offset);

About /* causes a segmentation fault when called. */, you need to "initialize"
g_pinfo in dissect_dmg_beacon 
@@ -7569,6 +7568,8 @@ dissect_dmg_beacon(packet_info *pinfo, proto_tree *tree,
tvbuff_t *t
   int         tagged_parameter_tree_len;
   int current_offset = offset;

+  g_pinfo = pinfo;


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