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2000-05-25Convert dissect_ppp() and friends to use tvbuffs.Gilbert Ramirez1-4/+3
(the ip_tcp_options stuff is still non-tvbuff until I convert ip and tcp). Add preliminary fix for Linux ISDN ippp devices (similar watch was posted to ethereal-users, but did not use tvbuffs). Change packet-raw.c to call capture_ppp()/dissect_ppp() in the case where the frame starts with FF:03. We had been calling capture_ip()/dissect_ip() at byte offset 4, but I think this is for historical reasons of packet-raw.c and packet-ip.c existing before packet-ppp.c. svn path=/trunk/; revision=1998
2000-05-19Make "packet-null.c" include "packet-null.h", so that the declarationsGuy Harris1-1/+2
in "packet-null.h" will be checked against the definitions in "packet-null.c". Fix the declaration of "dissect_null()" in "packet-null.h", so that said checks don't complain. svn path=/trunk/; revision=1980
2000-05-19Add protection against 0-length FT_BYTES being added to proto_tree.Gilbert Ramirez1-29/+37
Convert ethertype() and dissect_null() to use tvbuff. svn path=/trunk/; revision=1979
2000-05-11Add tvbuff class.Gilbert Ramirez1-4/+4
Add exceptions routines. Convert proto_tree_add_*() routines to require tvbuff_t* argument. Convert all dissectors to pass NULL argument ("NullTVB" macro == NULL) as the tvbuff_t* argument to proto_tree_add_*() routines. dissect_packet() creates a tvbuff_t, wraps the next dissect call in a TRY block, will print "Short Frame" on the proto_tree if a BoundsError exception is caught. The FDDI dissector is converted to use tvbuff's. svn path=/trunk/; revision=1939
2000-03-27Change dissect_ppp() to accept offset.Gilbert Ramirez1-2/+2
Change GRE dissector to call dissect_ppp() instead of dissect_payload_ppp(). svn path=/trunk/; revision=1753
2000-02-15Create a header file for every packet-*.c file. Prune the packet.h file.Gilbert Ramirez1-1/+7
This change allows you to add a new packet-*.c file and not cause a recompilation of everything that #include's packet.h Add the plugin_api.[ch] files ot the plugins/Makefile.am packaging list. Add #define YY_NO_UNPUT 1 to the lex source so that the yyunput symbol is not defined, squelching a compiler complaint when compiling the generated C file. svn path=/trunk/; revision=1637
2000-01-23In "dissect_eth()", update "pi.len" and "pi.captured_len" regardless ofGuy Harris1-5/+5
whether we're building a protocol tree or not. Make "dissect_eth()" use "BYTES_ARE_IN_FRAME()" to see if we have a full Ethernet header - it can be called with a non-zero offset, if Ethernet frames are encapsulated inside other frames (e.g., ATM LANE). Make capture routines take an "offset" argument if the corresponding dissect routine takes one (for symmetry, and for Cisco ISL or any other protocol that encapsulates Ethernet or Token-Ring frames inside other frames). Pass the frame lengths to capture routines via the "pi" structure, rather than as an in-line argument, so that they can macros such as "BYTES_ARE_IN_FRAME()" the way the corresponding dissect routines do. Make capture routines update "pi.len" and "pi.captured_len" the same way the corresponding diseect routines do, if the capture routines then call other capture routines. Make "capture_vlan()" count as "other" frames that are too short, the way other capture routines do. svn path=/trunk/; revision=1525
1999-11-16Replace the ETT_ "enum" members, declared in "packet.h", withGuy Harris1-3/+9
dynamically-assigned "ett_" integer values, assigned by "proto_register_subtree_array()"; this: obviates the need to update "packet.h" whenever you add a new subtree type - you only have to add a call to "proto_register_subtree_array()" to a "register" routine and an array of pointers to "ett_", if they're not already there, and add a pointer to the new "ett_" variable to the array, if they are there; would allow run-time-loaded dissectors to allocate subtree types when they're loaded. svn path=/trunk/; revision=1043
1999-10-12New proto_tree header_field_info stuff. Header_field_infos now containGilbert Ramirez1-3/+5
the base for numbers to be displayed in, bitmasks for bitfields, and blurbs (which are one or two sentences describing the field). proto_tree_add*() routines now automatically handle bitfields. You tell it which header field you are adding, and just pass it the value of the entire field, and the proto_tree routines will do the masking and shifting for you. This means that bitfields are more naturally filtered via dfilter now. Added Phil Techau's support for signed integers in dfilters/proto_tree. Added the beginning of the SNA dissector. It's not complete, but I'm committing it now because it has example after example of how to use bitfields with the new header_field_info struct and proto_tree routines. It was the impetus to change how header_field_info works. svn path=/trunk/; revision=815
1999-08-24Removed unnecessary #include "etypes.h" lines.Gilbert Ramirez1-2/+2
svn path=/trunk/; revision=565
1999-08-22Rename BSD_AF_INET6_OPENBSD to BSD_AF_INET6_BSD, asGuy Harris1-4/+4
1) OpenBSD and NetBSD might use the same value; 2) BSD/OS uses the same value; so maybe FreeBSD is the only outlier. svn path=/trunk/; revision=551
1999-08-22FreeBSD and OpenBSD both use 23 for AF_IPX (that may have been inGuy Harris1-9/+18
4.4-Lite), but they use different values for AF_INET6; define and handle both of them. Add AF_ISO as well. svn path=/trunk/; revision=543
1999-08-22DLT_NULL, from "libpcap", means different things on different platformsGuy Harris1-117/+250
and in different capture files; throw in some heuristics to try to figure out whether the 4-byte header is: 1) PPP-over-HDLC (some version of ISDN4BSD?); 2) big-endian AF_ value (BSD on big-endian platforms); 3) little-endian AF_ value (BSD on little-endian platforms); 4) two octets of 0 followed by an Ethernet type (Linux, at least on little-endian platforms, as mutated by "libpcap"). Make a separate Wiretap encapsulation type, WTAP_ENCAP_NULL, corresponding to DLT_NULL. Have the PPP code dissect the frame if it's PPP-over-HDLC, and have "ethertype()" dissect the Ethernet type and the rest of the packet if it's a Linux-style header; dissect it ourselves only if it's an AF_ value. Have Wiretap impose a maximum packet size of 65535 bytes, so that it fails more gracefully when handed a corrupt "libpcap" capture file (other capture file formats with more than a 16-bit capture length field, if any, will have that check added later), and put that size in "wtap.h" and have Ethereal use it as its notion of a maximum packet size. Have Ethereal put up a "this file appears to be damaged or corrupt" message box if Wiretap returns a WTAP_ERR_BAD_RECORD error when opening or reading a capture file. Include loopback interfaces in the list of interfaces offered by the "Capture" dialog box, but put them at the end of the list so that it doesn't default to a loopback interface unless there are no other interfaces. Also, don't require that an interface in the list have an IP address associated with it, and only put one entry in the list for a given interface (SIOCGIFCONF returns one entry per interface *address*, not per *interface* - and even if you were to use only IP addresses, an interface could conceivably have more than one IP address). Exclusively use Wiretap encapsulation types internally, even when capturing; don't use DLT_ types. svn path=/trunk/; revision=540
1999-08-21Jochen Friedrich's patch to add IPv6 support for DLT_NULL.Guy Harris1-1/+11
svn path=/trunk/; revision=537
1999-07-29Made the protocol (but not the fields) use the new proto_tree routine,Gilbert Ramirez1-5/+5
allowing users to filter on the existence of these protocols. I also added packet-clip.c to the Nmake makefile. svn path=/trunk/; revision=402
1999-07-13Added support for compiling on win32 with Visual C and 'nmake'. It compiles,Gilbert Ramirez1-1/+4
but does not link. Perhaps someone who understands the MS tools can help out. I made it link a few months ago, but with different version of glib/gtk+. I can't remember how I made it link. Most of the compatibility issues were resolved with adding #ifdef HAVE_UNISTD_H the the source code. Please be sure to add this to all future code. svn path=/trunk/; revision=359
1999-07-07Created a new protocol tree implementation and a new display filterGilbert Ramirez1-7/+40
mechanism that is built into ethereal. Wiretap is now used to read all file formats. Libpcap is used only for capturing. svn path=/trunk/; revision=342
1999-03-23Removed all references to gtk objects from packet*.[ch] files. They nowGilbert Ramirez1-13/+19
reference the protocol tree with struct proto_tree and struct proto_item objects. That way, the packet decoding source code file can be used with non-gtk packet decoders, like a curses-based ethereal, e.g. I also re-arranged some of the information in packet.h to more appropriate places (like other packet-*.[ch] files). svn path=/trunk/; revision=223
1999-02-09When doing a capture, decode enough of the incoming packets to correctlyGuy Harris1-1/+32
update the packet counts and percentages in the dialog box popped up during a capture, even for non-Ethernet captures. svn path=/trunk/; revision=184
1998-11-17* Added column formatting functionality.Gerald Combs1-7/+9
* Added check_col(), add_col_str() and add_col_fmt() to replace references to ft->win_info. * Added column prefs handling code. svn path=/trunk/; revision=97
1998-11-12A lengthy patch to add the wiretap library. Wiretap is not used by defaultGilbert Ramirez1-2/+1
because it is still in its infancy, but it can be compiled in optionally. The library exists in its own subdirectory ethereal/wiretap. This patch also edits all the packet-*.c files to remove the #include <pcap.h> line which is unnecessary in these files. In the ethereal code, file.c is the most heavily modified with #ifdef WITH_WIRETAP lines for the optional library. svn path=/trunk/; revision=82
1998-11-05Get rid of the "N on link, M capture" from the null and raw detail, asGuy Harris1-3/+2
that's now in the frame-level detail display. svn path=/trunk/; revision=80
1998-09-27Merged in a _huge_ patch from Guy Harris. It adds a time stap column,Gerald Combs1-7/+7
generalizes the column printing code, adds a "frame" tree item to the tree view, and fixes a bunch of miscellaneous coding bugs. svn path=/trunk/; revision=31
1998-09-25* Ethernet manufacturer support (Laurent)Gerald Combs1-0/+97
* PPP fixes (Gerald) * Null/loopback interface support (Gerald) svn path=/trunk/; revision=25
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