diff options
| author | Guy Harris <guy@alum.mit.edu> | 2005-01-29 10:48:16 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2005-01-29 10:48:16 +0000 |
| commit | e4a550c5382773896f1c1bd5ef99897e444d822e (patch) | |
| tree | 00308ff286fe79be2d18cac8ea6e95f10c2921b6 /wiretap | |
| parent | 995a967894938450ff8dd00f3a397ddd3b82f47c (diff) | |
Add some notes about stuff discovered by Ken Mann.
svn path=/trunk/; revision=13194
Diffstat (limited to 'wiretap')
| -rw-r--r-- | wiretap/netxray.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/wiretap/netxray.c b/wiretap/netxray.c index bd2051b0c6..b33c22b589 100644 --- a/wiretap/netxray.c +++ b/wiretap/netxray.c @@ -874,7 +874,11 @@ netxray_set_pseudo_header(wtap *wth, const guint8 *pd, int len, * * It also appears that if the low-order bit of * hdr->hdr_2_x.xxx[8] is set, the packet has a - * bad FCS. + * bad FCS. According to Ken Mann, the 0x4 bit + * is sometimes also set for errors. + * + * Ken also says that xxx[11] is 0x5 when the + * packet is WEP-encrypted. */ if (hdr->hdr_2_x.xxx[2] == 0xff && hdr->hdr_2_x.xxx[3] == 0xff) { @@ -902,6 +906,12 @@ netxray_set_pseudo_header(wtap *wth, const guint8 *pd, int len, hdr->hdr_2_x.xxx[13]; pseudo_header->ieee_802_11.signal_level = hdr->hdr_2_x.xxx[14]; + /* + * According to Ken Mann, at least in the captures + * he's seen, xxx[15] is the noise level, which + * is either 0xFF meaning "none reported" or a value + * from 0x00 to 0x7F for 0 to 100%. + */ break; case WTAP_ENCAP_ISDN: |