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1999-12-05As per Nathan Leulinger's suggestion, have a stub SNMP dissector ifGuy Harris1-7/+1
there are no SNMP libraries to use in a real dissector; this means that other dissectors don't have to care if there are SNMP libraries, they can just call "dissect_snmp()" - and this also simplifies "Makefile.am" and "configure.in" a bit, as they just treat "packet-snmp.c" and "packet-snmp.h" the same way they treat other dissector source files. svn path=/trunk/; revision=1214
1999-11-21Enable IPX network name resolution by providing for an /etc/ipxnetsGilbert Ramirez1-2/+3
and a $HOME/.ethereal/ipxnets file. get_ipxnet_name() and other functions, similar to get_ether_name() and friends, have been added. svn path=/trunk/; revision=1085
1999-11-16Replace the ETT_ "enum" members, declared in "packet.h", withGuy Harris1-1/+48
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
1999-11-15Add "class" that understands IPv4 addresses and subnet masks.Gilbert Ramirez1-4/+11
We now store IPv4 addresses in host order, allowing non-equivalence comparisons. That is, display filters with lt, le, gt, and ge will work on big-endian and little-endian machines. CIDR notation is now supported for IPv4 addresses in display filters. You can test to see if an IPv4 address is on a certain subnet by using this notation. For example, to test for IPv4 packets on a Class-C network: ip.addr == 192.168.1.0/24 svn path=/trunk/; revision=1032
1999-11-11Expanded bootparams dissector to handle decoding getfile calls and replies.Nathan Neulinger1-1/+11
Added proto_registrar_get_name routine to proto.c to retrieve the name of particular proto_tree field. Added dissect_rpc_string_item to packet-rpc.c. This routine does the same thing as dissect_rpc_string, except it takes a hfindex of a proto_tree item instead of a name. It uses the p_r_get_name call to get the name, and adds the actual string content as a hidden field (so that the subtree highlights the entire data area - length, data, and padding). There is only one call to dissect_rpc_string, so I believe that this routine should replace it. svn path=/trunk/; revision=1011
1999-10-20Automatically generate a function to call the register routines for allGuy Harris1-134/+7
protocols (idea shamelessly stolen from GDB). We require that the register routines 1) be located in "packet.c" or in one of the "packet-XXX.c" files; 2) have a name of the form "proto_register_XXX"; 3) take no argument, and return no value; 4) have their names appear in the source file either at the beginning of the line, or preceded only by "void " at the beginning of the line; and we require that "packet-XXX.c" files be added to "DISSECTOR_SOURCES" in "Makefile.am". svn path=/trunk/; revision=891
1999-10-17- add lpd protocol registrationLaurent Deniel1-1/+3
- add display filters svn path=/trunk/; revision=872
1999-10-16Added FT_UINT24 (FT_INT24 was already there) to glossary output soGilbert Ramirez1-1/+4
description of fields in man page is correct. svn path=/trunk/; revision=859
1999-10-16Add the missing proto_register_bgp().Laurent Deniel1-1/+3
svn path=/trunk/; revision=853
1999-10-14Nathan Neulinger's NTP dissector.Guy Harris1-1/+3
svn path=/trunk/; revision=828
1999-10-14Nathan Neulinger's dissector for the Yahoo messenger and pagerGuy Harris1-1/+3
protocols. svn path=/trunk/; revision=824
1999-10-13Jun-ichiro itojun Hagino's code for PIM, and some fixes from him asGuy Harris1-1/+3
well. Add some more protocols to the list of value/string pairs for IP protocol types. svn path=/trunk/; revision=822
1999-10-13Use %d to sprintf FT_INT* into proto_tree instead of %u.Gilbert Ramirez1-12/+124
svn path=/trunk/; revision=820
1999-10-12Jun-ichiro itojun Hagino's changes for IPv6 extension header decodingGuy Harris1-1/+3
and RIPng decoding. svn path=/trunk/; revision=818
1999-10-12Add FT_UINT24 and FT_INT24 to a spot where they were missing.Gilbert Ramirez1-1/+3
svn path=/trunk/; revision=817
1999-10-12Fix byte-count of IPv6 addresses.Gilbert Ramirez1-2/+2
svn path=/trunk/; revision=816
1999-10-12New proto_tree header_field_info stuff. Header_field_infos now containGilbert Ramirez1-97/+373
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
1999-10-12Re-implemented fix to keep display filter from reading data from outsideGilbert Ramirez1-1/+54
the packet boundary. Now the field boundary is honored. The frame boundary is ignored, but of course we put proper field lengths in the proto_tree, right? :) Implemented negative offsets in byte-strings: frame[-4:4] will read the last 4 bytes of a frame. Implemented "offset-only" byte-string comparisons, since the dfilter compiler knows the length of the byte-string you supplied. These are now legal: frame[-4] == 0.0.0.1 tr.dst[0] == 00:06:29 Implemented the use of integers if you're comparing one byte. These are legal: llc[0] == 0xaa llc[0:1] == 0xaa All these forms check against the length of the field, so these will be reported as bad to the user: eth.src[5] == 00:06:29 (goes beyond field boundary) eth.dst == 1.2.3.4.5.6.7 (too long, goes beyond field boundary) Thes is also reported as bad: eth.dst[0:3] == 1.2 (incorrect number of bytes specified) eth.dst[0:1] == eth.src[0:2] (disparate lengths) I had to add a new function, proto_registrar_get_length() in proto.c, which reports the length of a field as can be determined at registration time. There are some shift/reduce errors in the grammar that I need to get rid of. svn path=/trunk/; revision=811
1999-10-11- add handling of FT_IPv6 variablesLaurent Deniel1-1/+14
there is still some work to do in resolv.c (get_host_ipaddr6) - add display filters of this kind in packet-ipv6.c just for testing (display filtering is incomplete) svn path=/trunk/; revision=808
1999-10-08Christophe Tronche's BPDU dissector.Guy Harris1-1/+3
svn path=/trunk/; revision=790
1999-10-04Removed dummy protocol and removed bug which prevented the firstGilbert Ramirez1-4/+1
registered protocol's name from being used in a display filter. svn path=/trunk/; revision=766
1999-10-03packet-aarp.c:Laurent Deniel1-1/+4
- add display filter for AARP proto.c: - register a dummy protocol before the first one (aarp) since the first entry can not be filtered (bug ?) Gilbert, could you check this ? svn path=/trunk/; revision=762
1999-09-18Handle the missing FT_BYTES field type.Laurent Deniel1-1/+16
svn path=/trunk/; revision=687
1999-09-17Add a "BYTES_ARE_IN_FRAME()" macro, to test whether there are aGuy Harris1-1/+3
specified number of bytes of captured data in the frame at the specified offset, and a "IS_DATA_IN_FRAME()" macro, to test whether there are any bytes of captured data in the frame at the specified offset, and convert some bounds checks to use them. Add a dissector for the Internet Printing Protocol. svn path=/trunk/; revision=685
1999-09-15Changed (again) the way that the FT_BOOLEAN field type works internally.Gilbert Ramirez1-3/+3
Dissector code can add FT_BOOLEAN fields to the proto_tree and pass TRUE or FALSE values (non-zero and zero values). The display filter language, however, treats the checking for the existence of a FT_BOOLEAN field as the checking for its truth. Before this change, packet-tr.c was the only dissector using FT_BOOLEAN fields, and it only added the field to the proto_tree if the TRUE; the dissector was determining the difference between the check for existence and the check for truth. I made this change because packet-ppp.c added some FT_BOOLEAN fields and added them to the tree regardless of truth value, It's more natural just to do it this way and let the display filter code worry about whether to check for existence or truth. So that's how it works now. svn path=/trunk/; revision=679
1999-09-14Peter Torvals' Internet Cache Protocol dissector.Guy Harris1-1/+3
svn path=/trunk/; revision=677
1999-09-12Some old CPP or tools that take C code in input doLaurent Deniel1-3/+3
not like #preprocessor_macros that do not start at the first column. So write: #ifdef FOO # include <dummy1.h> # define DUMMY 1 #else # include <dummy2.h> # define DUMMY 2 #endif instead of #ifdef FOO #include <dummy1.h> #define DUMMY 1 #else #include <dummy2.h> #define DUMMY 2 #endif svn path=/trunk/; revision=668
1999-09-12Add summary-vs-detail radio buttons to the print dialog box; detailGuy Harris1-4/+23
prints the protocol tree, and summary prints the fields in the summary clist, with a header line at the beginning of the printout. Print only packets selected by the current packet filter. Just have "ARP" and "RARP" in the "Protocol" field for ARP packets; whether it's a request or a reply can be seen in the "Info" field. Add to the "Frame" section of the protocol tree the time between the current packet and the previous displayed packet, and the packet number. Have FT_RELATIVE_TIME fields be a "struct timeval", and display them as seconds and fractional seconds (we didn't have any fields of that type, and that type of time fits the delta time above). Add an FT_DOUBLE field type (although we don't yet have anything using it). svn path=/trunk/; revision=666
1999-09-11Added Guy's patch to use the pseudo header facility to pass up the AscendGerald Combs1-1/+3
metadata. Also added filter items for the session and task number. svn path=/trunk/; revision=664
1999-09-11Register cotp and clnp instead of simply osi to allowLaurent Deniel1-3/+5
display filtering on those protocols and future enhancements (other OSI protocols decoding). svn path=/trunk/; revision=662
1999-09-11Added support for PPP Multilink Protocol (MP). Modified dissect_ppp_stuffGerald Combs1-1/+3
to recognize and handle protocol field compression. svn path=/trunk/; revision=651
1999-08-30Fixed problem with not being able to filt on field values.Gilbert Ramirez1-2/+6
svn path=/trunk/; revision=610
1999-08-29Removed from the display filter/proto_tree code the assumption thatGilbert Ramirez1-50/+66
a protocol occurs only once in a packet. Because of encapsulation (IP within IP), a protocol can occur more than once. I don't have a packet trace showing such a packet, but the code should handle it now. The one thing that it cannot do, though, is differentiate the levels. It might be nice to say: ip{1}.src == 192.168.1.1 && ipx{2}.dst == 10.0.0.1 In the dfilter grammar I had left IPXNET variables out of the list of variables that could be checked for existence. Now you can check for the existence of ipx.srcnet and ipx.dstnet. Hurrah. svn path=/trunk/; revision=608
1999-08-26Introduces a new global gboolean variable: proto_tree_is_visible.Gilbert Ramirez1-4/+10
This is set before calling dissect_packet() to let the proto_tree routines whether or not it needs to go through the trouble of formatting strings. The use of this dramatically decreases the number of calls to vsnprintf. svn path=/trunk/; revision=583
1999-08-26The dfilter yacc grammar now keeps track of every GNode that it allocates.Gilbert Ramirez1-2/+15
After a bad parse, instead of leaking this memory, the memory used for those GNodes is now freed. Added some memory-freeing "cleanup" routines for the dfilter and proto_tree modules, which are called right before ethereal exits. Maybe once we get a complete set of cleanup routines, we'll be able to better check if memory is leaking. svn path=/trunk/; revision=582
1999-08-20Add support for reading Full Frontal ATM from an ATM Sniffer captureGuy Harris1-1/+3
file, instead of throwing out all but LANE or RFC 1483 data frames and pretending that the former are just Ethernet or Token-Ring frames. Add some level of decoding for ATM LANE, but not all of it; the rest, including decoding non-LANE frames, is left as an exercise for somebody who has captures they want to decode, an interest in decoding them, ATM expertise, and time.... svn path=/trunk/; revision=523
1999-08-14Removed unneeded 'color' field from header_field_info.Gilbert Ramirez1-2/+1
svn path=/trunk/; revision=482
1999-08-13Moved global memory alloction used in display filters (which was storedGilbert Ramirez1-3/+1
in dfilter-grammar.y) to a new struct dfilter. Display filters now have their own struct, rather than simply being GNode's. This allows multiple display filters to exist at once, aiding John McDermott in his work on colorization. svn path=/trunk/; revision=480
1999-08-10Jeff Foster's changes to add support for NetBEUI/NBF (NetBIOS atop 802.2Guy Harris1-1/+3
LLC, the original NetBIOS encapsulation). svn path=/trunk/; revision=466
1999-08-07A further memory leak fix from Jochen Friedrich.Guy Harris1-1/+2
svn path=/trunk/; revision=452
1999-08-04Fix a couple of memory leaks.Guy Harris1-9/+13
svn path=/trunk/; revision=438
1999-08-03Checked in Johan's Updated RADIUS dissector which uses the new proto_treeGilbert Ramirez1-1/+3
implementation. svn path=/trunk/; revision=425
1999-08-03Fixed #ifdef to call proto_register_snmp properly when SNMP is compiled in.Gilbert Ramirez1-1/+7
svn path=/trunk/; revision=424
1999-08-02Check in Olivier Abad's patch to add dissectors for LAP-B and X.25, andGuy Harris1-1/+5
wiretap support for RADCOM Ltd.'s WAN/LAN analyzers (see http://www.radcom-inc.com/ ). Note: as I remember, IEEE 802.2/ISO 8022 LLC has somewhat of an SDLC flavor to it, just as I think LAP, LAPB, LAPD, and so on do, so we may be able to combine some of the LLC dissection and the LAPB dissection into common code that could, conceivably be used for other SDLC-flavored protocols. Make "S" a mnemonic for "Summary" in the "Tools" menu. Move the routine, used for the "Tools/Summary" display, that turns a wiretap file type into a descriptive string for it into the wiretap library itself, expand on some of its descriptions, and add an entry for files from a RADCOM analyzer. Have "Tools/Summary" display the snapshot length for the capture. svn path=/trunk/; revision=416
1999-08-01Changed the display filter scanner from GLIB's GScanner to lex. The codeGilbert Ramirez1-20/+12
as it standed depends on your lex being flex, but that only matters if you're a developer. The distribution will include the dfilter-scanner.c file, so that if the user doesn't modify dfilter-scanner.l, he won't need flex to re-create the *.c file. The new lex scanner gives me better syntax checking for ether addresses. I thought I could get by using GScanner, but it simply wasn't powerful enough. All operands have English-like abbreviations and C-like syntax: and, && ; or, || ; eq, == ; ne, != ; , etc. I removed the ETHER_VENDOR type in favor of letting the user use the [x:y] notation: ether.src[0:3] == 0:6:29 instead of ether.srcvendor == 00:06:29 I implemented the IPXNET field type; it had been there before, but was not implemented. I chose to make it use integer values rather than byte ranges, since an IPX Network is 4 bytes. So a display filter looks like this: ipx.srcnet == 0xc0a82c00 rather than this: ipx.srcnet == c0:a8:2c:00 I can supposrt the byte-range type IPXNET in the future, very trivially. I still have more work to do on the parser though. It needs to check ranges when extracting byte ranges ([x:y]) from packets. And I need to get rid of those reduce/reduce errors from yacc! svn path=/trunk/; revision=414
1999-07-31Print FT_UINT{8,16,32} values with "%u", not "%d", as they're unsignedGuy Harris1-2/+2
values (for example, a sequence number in a TCP header should be printed as an unsigned value; I have a trace in which the uppermost bit of the sequence number is set...). If we need to be able to handle signed values, add FT_INT{8,16,32} types. svn path=/trunk/; revision=406
1999-07-29Made the protocol (but not the fields) use the new proto_tree routine,Gilbert Ramirez1-2/+70
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
1999-07-22Converted UDP fields to new proto_tree functions.Gilbert Ramirez1-1/+3
svn path=/trunk/; revision=376
1999-07-17Added just enough fields to TCP to support "Follow TCP Stream". It works now.Gilbert Ramirez1-1/+7
Added the protocol IDs for ipx and IGMP, but not their fields. svn path=/trunk/; revision=365
1999-07-15Modified the proto_register_field_array usage again. Thanks to Guy'sGilbert Ramirez1-8/+130
suggestion, this new method using a static array should use less memory and be faster. It also has a nice side-effect of making the source-code more readble, IMHO. Changed the print routines to look for protocol proto_data instead of looking at the text label as they did before, hoping that the data hex dump field item starts with "Data (". Added the -G keyword to ethereal to make it dump a glossary of display filter keywords to stdout and exit. This data is then formatted with the doc/dfilter2pod perl program to pod format, which is combined with doc/ethereal.pod.template to create doc/ethereal.pod, from which the ethereal manpage is created. This way we can keep the manpage up-to-date with a list of fields that can be filtered on. svn path=/trunk/; revision=364
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