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| author | Guy Harris <guy@alum.mit.edu> | 1999-11-28 02:08:48 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 1999-11-28 02:08:48 +0000 |
| commit | 9f084a7ebc9e583bb9fd0b4bd1246c652838b81f (patch) | |
| tree | 20ef8a1633e38b15d8d364c99ef1ec8f08ea7425 /wiretap/ngsniffer.c | |
| parent | d6c3d1b5bfb5c909647fd29ba51a282d4d0e971c (diff) | |
| download | wireshark-9f084a7ebc9e583bb9fd0b4bd1246c652838b81f.tar.gz wireshark-9f084a7ebc9e583bb9fd0b4bd1246c652838b81f.tar.bz2 wireshark-9f084a7ebc9e583bb9fd0b4bd1246c652838b81f.zip | |
Add in a comment about the "fs" and "flags" fields in the "frame2"
record.
svn path=/trunk/; revision=1130
Diffstat (limited to 'wiretap/ngsniffer.c')
| -rw-r--r-- | wiretap/ngsniffer.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/wiretap/ngsniffer.c b/wiretap/ngsniffer.c index b7b79afa89..f24a62c6aa 100644 --- a/wiretap/ngsniffer.c +++ b/wiretap/ngsniffer.c @@ -1,6 +1,6 @@ /* ngsniffer.c * - * $Id: ngsniffer.c,v 1.26 1999/11/27 20:46:46 guy Exp $ + * $Id: ngsniffer.c,v 1.27 1999/11/28 02:08:48 guy Exp $ * * Wiretap Library * Copyright (c) 1998 by Gilbert Ramirez <gram@verdict.uthscsa.edu> @@ -475,6 +475,21 @@ static int ngsniffer_read(wtap *wth, int *err) t = (double)time_low+(double)(time_med)*65536.0 + (double)time_high*4294967296.0; + /* + * In one PPP "Internetwork analyzer" capture, + * the only bit seen in "fs" is the 0x80 bit, + * which probably indicates the packet's + * direction; all other bits were zero. + * All bits in "frame2.flags" were zero. + * + * In one Ethernet capture, "fs" was always 0, + * and "flags" was either 0 or 0x18, with no + * obvious correlation with anything. + * + * In one Token Ring capture, "fs" was either 0 + * or 0xcc, and "flags" was either 0 or 0x18, + * with no obvious correlation with anything. + */ wth->phdr.pseudo_header.x25.flags = frame2.fs & 0x80; goto found; |