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Update some comments. 

svn path=/trunk/; revision=6176
This commit is contained in:
Guy Harris 2002-09-04 19:29:59 +00:00
parent 93a649db6f
commit 7a973edb96
1 changed files with 17 additions and 9 deletions
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wiretap/snoop.c
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@ -1,6 +1,6 @@
/* snoop.c
*
* $Id: snoop.c,v 1.55 2002/08/28 20:30:45 jmayer Exp $
* $Id: snoop.c,v 1.56 2002/09/04 19:29:59 guy Exp $
*
* Wiretap Library
* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
@ -84,9 +84,10 @@ static gboolean snoop_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
*
* http://mrpink.lerc.nasa.gov/118x/support.html
*
* has links to modified versions of "tcpdump" and "libpcap" for SUNatm
* DLPI support; they suggest the 3.0 verson of SUNatm uses those
* values.
* had links to modified versions of "tcpdump" and "libpcap" for SUNatm
* DLPI support; they suggested that the 3.0 verson of SUNatm uses those
* values. The Wayback Machine archived that page, but not the stuff
* to which it linked, unfortunately.
*
* It also has a link to "convert.c", which is a program to convert files
* from the format written by the "atmsnoop" program that comes with the
@ -107,16 +108,23 @@ static gboolean snoop_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
*
* Source to an "atmdump" package, which includes a modified version of
* "libpcap" to handle SunATM DLPI and an ATM driver for FreeBSD, and
* also includes "atmdump", which is a modified "tcpdump", says that an
* also includes "atmdump", which is a modified "tcpdump", is available
* at
*
* ftp://ftp.cs.ndsu.nodak.edu/pub/freebsd/atm/atm-bpf.tgz
*
* and that code also indicates that DL_IPATM is used, and that an
* ATM packet handed up from the Sun driver for the Sun SBus ATM card on
* Solaris 2.5.1 has 1 byte of direction, 1 byte of VPI, 2 bytes of VCI,
* and then the ATM PDU, and suggests that the direction byte is 0x80 for
* and then the ATM PDU, and suggests that the direction flag is 0x80 for
* "transmitted" (presumably meaning DTE->DCE) and presumably not 0x80 for
* "received" (presumably meaning DCE->DTE).
* "received" (presumably meaning DCE->DTE). That code was used as the
* basis for the SunATM support in current CVS versions of libpcap and
* tcpdump, and it works.
*
* In fact, the "direction" byte appears to have some other stuff, perhaps
* a traffic type, in the lower 7 bits, with the 8th bit indicating the
* direction.
* direction. That appears to be the case.
*
* I don't know what the encapsulation of any of the other types is, so I
* leave them all as WTAP_ENCAP_UNKNOWN. I also don't know whether "snoop"
@ -127,7 +135,7 @@ static gboolean snoop_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
*
* See
*
* http://www.shomiti.com/support/TNCapFileFormat.htm
* http://web.archive.org/web/20010906213807/http://www.shomiti.com/support/TNCapFileFormat.htm
*
* for information on Shomiti's mutant flavor of snoop. For some unknown
* unknown reason, they decided not to just Go With The DLPI Flow, and