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2003-08-28Make "process_reassembled_data()" do the check for fragmentation notGuy Harris1-7/+2
being complete and for fragmentation being trivial (i.e., the packet in question is both the first and last fragment). Have its callers *not* do that check - this lets "process_reassembled_data()" put in the "Reassembled in" item for fragments other than the last fragment. Add a "Reassembled in" field to TDS. svn path=/trunk/; revision=8295
2003-07-11Add a routine "dissect_ipv6_options()" that works likeGuy Harris1-1/+99
"dissect_ip_tcp_options()" but for options that are like IPv6 options (i.e., the length byte has a value that doesn't include the option code or length byte). Add an "ip_opts.h" header to declare it, and move the declaration of stuff used by it and "dissect_ip_tcp_options()", and the declaration of "dissect_ip_tcp_options()", to that header. Use "dissect_ipv6_options()" for Mobile IPv6 options. Get rid of the unused "mip6_opt_types[]" array in "packet-mip6.h". svn path=/trunk/; revision=8015
2003-04-29Don't export "ip_dissector_table" explicitly; now that we haveGuy Harris1-2/+5
"find_dissector_table()", have the IPv6 and IPSEC dissectors fetch the IP dissector table by name. svn path=/trunk/; revision=7600
2003-04-20Add a pointer to an hf_ value for a "reassembled_in" field (which can beGuy Harris1-4/+10
null) to the "fragment_items" structure, and don't pass that value into "process_reassembled_data()", just have it use the value in the "fragment_items" structure passed to it. Make "process_reassembled_data()" capable of handling reassembly done by "fragment_add_seq_check()", and use it in the ATP and 802.11 dissectors; give them "reassembled_in" fields. Make "process_reassembled_data()" handle only the case of a completed reassembly (fd_head != NULL) so that we can use it in those dissectors without gunking the code up too much. svn path=/trunk/; revision=7513
2003-04-20Pull much of the processing done after a call to "fragment_add_check()"Guy Harris1-23/+10
into a subroutine, for use in other dissectors. Use it in the IPv6 and CLNP dissectors. svn path=/trunk/; revision=7510
2003-04-20Use "fragment_add_check()" for IPv6 and CLNP reassembly. (Possibly anGuy Harris1-2/+5
issue for CLNP, with its 16-bit IDs, which could be duplicated in a sufficiently large capture even if CLNP implementations don't deliberately reuse IDs; less of an issue for IPv6, with its 32-bit IDs and with its prohibition on reuse: For every packet that is to be fragmented, the source node generates an Identification value. The Identification must be different than that of any other fragmented packet sent recently* with the same Source Address and Destination Address. If a Routing header is present, the Destination Address of concern is that of the final destination. * "recently" means within the maximum likely lifetime of a packet, including transit time from source to destination and time spent awaiting reassembly with other fragments of the same packet. However, it is not required that a source node know the maximum packet lifetime. Rather, it is assumed that the requirement can be met by maintaining the Identification value as a simple, 32- bit, "wrap-around" counter, incremented each time a packet must be fragmented. It is an implementation choice whether to maintain a single counter for the node or multiple counters, e.g., one for each of the node's possible source addresses, or one for each active (source address, destination address) combination. but perhaps we'll ultimately be able to get rid of the old "fragment_add()" entirely and rename "fragment_add_check()" to "fragment_add()"). svn path=/trunk/; revision=7507
2003-03-04When deciding whether we have enough data in a lower-level packet toGuy Harris1-2/+2
attempt reassembly of a higher-level packet that includes the lower-level packet, use "tvb_bytes_exist()" to check whether all the data that's to be included in the reassembly is available, rather than by checking whether the packet is short. Add some checks of that sort that were missing. Use the reported length of the packet when doing reassembly. Make the "iphdrlen" field of a "packet_info" structure be the length of the IP header in bytes, not in 4-byte words. svn path=/trunk/; revision=7274
2003-02-04From Teemu Rinta-aho: draft 20 MIPv6 support (now in a file of its own).Guy Harris1-365/+21
svn path=/trunk/; revision=7071
2003-01-23Support Appletalk, IPv6, and Banyan Vines over ARCNET.Guy Harris1-1/+3
svn path=/trunk/; revision=6987
2002-12-19Update reassemble.c/show_item and all callers to use FT_FRAMENUM for the ↵Ronnie Sahlberg1-3/+3
list of packets corresponding to a reassembled pdu svn path=/trunk/; revision=6807
2002-10-25Count ICMPv6 packets as ICMP when capturing.Guy Harris1-7/+87
Check the next header type - properly handling extension headers - in "capture_ipv6()". Get rid of the count of IPv6 packets - we break that down in "capture_ipv6()" now. Fix a typo. svn path=/trunk/; revision=6510
2002-10-24Add a "fragment_add_seq_next()" to reassemble fragments that don't haveGuy Harris1-2/+2
sequence numbers or offsets and are thus assumed to be received in order with no duplicates or dropped fragments (e.g., for NetBIOS Frame, where 802.2 LLC guarantees in-order delivery to NetBIOS with no duplicates or dropped fragments). "show_fragment_tree()' and "show_fragment_seq_tree()" don't modify the "fragment_items" to which the "fit" argument points, so make that argument a "const fragment_items *". Make all the "fragment_items" tables "static" (as they're not used outside the modules defining them) and "const" (as they're not modified). Add support for reassembly of NetBIOS fragmented requests and responses. Get rid of an unnecessary include of "packet-tr.c" in the NetBIOS dissector, and make its table of dissection function pointers static. Fix some typos in the AppleTalk and NetBIOS dissectors. svn path=/trunk/; revision=6491
2002-10-22Minimalistic support for counting IPv6 packets during captureJörg Mayer1-1/+11
svn path=/trunk/; revision=6476
2002-08-28Removed trailing whitespaces from .h and .c files using theJörg Mayer1-2/+2
winapi_cleanup tool written by Patrik Stridvall for the wine project. svn path=/trunk/; revision=6117
2002-08-03We don't use anything from <sys/socket.h> (we need to know the AF_INET6Guy Harris1-5/+1
values of the various BSDs that support DLT_NULL, but those aren't necessarily the AF_ values on the machine on which you're building Ethereal), so we don't need to include it. svn path=/trunk/; revision=5942
2002-08-02Replace the types from sys/types.h and netinet/in.h by their glib.hJörg Mayer1-14/+6
equivalents for the toplevel directory. The removal of winsock2.h will hopefully not cause any problems under MSVC++, as those files using struct timeval still include wtap.h, which still includes winsock2.h. svn path=/trunk/; revision=5932
2002-07-30From Michael Tuexen: AF_INET6 support for DLT_NULL captures fromGuy Harris1-1/+2
Darwin/MacOS X. (As if FreeBSD and {Net,Open}BSD having different AF_INET6 values wasn't enough, we have The Other BSD having its own value....) svn path=/trunk/; revision=5914
2002-06-07Add "show_fragment_seq_tree()", which is like "show_fragment_tree()",Guy Harris1-73/+16
but for stuff reassembled with "fragment_add_seq()" or "fragment_add_seq_check()". Add a "fragment tag" string to the "fragment_items", so that packets with fragmentation errors can be properly flagged as having "Illegal fragments" or "Illegal segments" depending on the term used with the protocol in question. Make all the dissectors that can use "show_fragment_tree()" or "show_fragment_seq_tree()", and don't already use them, do so. svn path=/trunk/; revision=5644
2002-06-04Get rid of the "data_src" member of the "frame_data" structure; put itGuy Harris1-2/+2
in the "packet_info" structure instead, as we don't need a pointer for every single frame in the capture file, just for each frame for which we currently have an open "epan_dissect_t". svn path=/trunk/; revision=5614
2002-05-02Only say "IPv6" once in the Info column for "no next header" packets.Guy Harris1-6/+7
svn path=/trunk/; revision=5363
2002-05-02Handle the "no next header" next header value specially - put into theGuy Harris1-24/+44
Info column information about the non-final headers seen in the packet (or leave the information put in there by the AH dissector alone, if there were AH's), or, if none were seen, just mark it as a "no next header" packet, and do that in the code used if there's no match for the next header value in the protocol table, rather than registering a dissector for "no next header", which also means we'll dissect the payload as data if there is any. Use -1, not "tvb_reported_length_remaining()", when making a subset tvbuff that runs to the end of the parent tvbuff. svn path=/trunk/; revision=5353
2002-03-27In the protocol tree entries for lists of fragments/segments, make theGuy Harris1-24/+24
top-level item correspond to the reassembled data, and make the item for each fragment/segment correspond to the part of that reassembled data that came from that fragment/segment. svn path=/trunk/; revision=5025
2002-02-27Label the data source for various forms of reassembled data with theGuy Harris1-2/+2
protocol that fragmented them, rather than just calling them "Reassembled". Do the same with uncompressed WCP data. svn path=/trunk/; revision=4822
2002-02-18Don't give tvbuffs names; instead, give data sources names, where aGuy Harris1-3/+3
"data source" has a name and a top-level tvbuff, and frames can have a list of data sources associated with them. Use the tvbuff pointer to determine which data source is the data source for a given field; this means we don't have to worry about multiple data sources with the same name - the only thing the name does is label the notebook tab for the display of the data source, and label the hex dump of the data source in print/Tethereal output. Clean up a bunch of things discovered in the process of doing the above. svn path=/trunk/; revision=4749
2002-02-17With the tvbuffication of all dissectors, the "packet_info" structure noGuy Harris1-2/+2
longer contains length fields, so there's no need to pass a "packet_info *" argument to "set_actual_length()". svn path=/trunk/; revision=4748
2002-01-21Include files from the "epan" directory and subdirectories thereof withGuy Harris1-3/+3
"epan/..." pathnames, so as to avoid collisions with header files in any of the directories in which we look (e.g., "proto.h", as some other package has its own "proto.h" file which it installs in the top-level include directory). Don't add "-I" flags to search "epan", as that's no longer necessary (and we want includes of "epan" headers to fail if the "epan/" is left out, so that we don't re-introduce includes lacking "epan/"). svn path=/trunk/; revision=4586
2002-01-20If reassembly is enabled, don't try to do any reassembly work at all onGuy Harris1-15/+9
a fragment unless we've captured all the data in the fragment and (in IPv4 and CLNP) it has a valid checksum, so that if the first fragment is a short frame or a frame with an invalid checksum, we'll treat it as if reassembly weren't enabled, and will dissect what data we have in it, rather than not dissecting *any* of the fragments above the IP/CLNP layer. svn path=/trunk/; revision=4575
2002-01-17Use the "fragmented" field of the "packet_info" structure inGuy Harris1-1/+5
"dissect_frame()" to indicate whether a ReportedBoundsError was due to the packet being malformed (i.e., the packet was shorter than it's supposed to be, so the dissector went past the end trying to extract fields that were supposed to be there) or due to it not being reassembled (i.e., the packet was fragmented, and we didn't reassemble it, but just treated the first fragment as the entire packet, so the dissector went past the end trying to extract fields that were partially or completely in fragments after that). Mark the latter as being unreasembled rather than malformed. Properly initialize, save, and restore that field, and properly set it, so that works. svn path=/trunk/; revision=4555
2002-01-10As per a comment from Ronnie Sahlberg, display TCP sequence numbers inGuy Harris1-3/+3
the list of segments in a desegmented PDU as unsigned, rather than signed. Fix some other displays of unsigned quantities with "%d" while we're at it. svn path=/trunk/; revision=4516
2001-12-10Move the pointer to the "column_info" structure in the "frame_data"Guy Harris1-15/+15
structure to the "packet_info" structure; only stuff that's permanently stored with each frame should be in the "frame_data" structure, and the "column_info" structure is not guaranteed to hold the column values for that frame at all times - it was only in the "frame_data" structure so that it could be passed to dissectors, and, as all dissectors are now passed a pointer to a "packet_info" structure, it could just as well be put in the "packet_info" structure. That saves memory, by shrinking the "frame_data" structure (there's one of those per frame), and also lets us clean up the code a bit. svn path=/trunk/; revision=4370
2001-12-03Make "dissector_add()", "dissector_delete()", and "dissector_change()"Guy Harris1-12/+16
take a dissector handle as an argument, rather than a pointer to a dissector function and a protocol ID. Associate dissector handles with dissector table entries. svn path=/trunk/; revision=4308
2001-12-02An NLPID of 1 means T.70 when used as an X.263/ISO 9577 initial protocolGuy Harris1-2/+8
identifier, but means X.29 when used as an X.263/ISO 9577 secondary protocol identifier. Add support for the IPv6 NLPID, and Ethernet type, in more places. Fix up the handling of the user data of a CALL REQUEST packet to more correctly distinguish between user data containing an NLPID and user data containing an X.264/ISO 11570 UN TPDU. If it's an NLPID, use "nlpid_vals" to show its value. Put that user data in a subtree. Create a new "x.25.spi" dissector table, for protocols running atop X.25, rather than having a built-in switch statement, so that other protocols can register themselves by NLPID. svn path=/trunk/; revision=4300
2001-11-26Moved from using dissect_data() to using call_dissector()Ed Warnicke1-3/+6
svn path=/trunk/; revision=4269
2001-11-21If we have to worry about subdissectors changing the "packet_info"Guy Harris1-9/+1
structure, we may have to worry about it in more places than the places that *used* to set "pi.len" and "pi.captured_len", so there's no point in just saving and restoring it there. We'll remove those saves/restores, and worry about saves and restores when we find a problem. svn path=/trunk/; revision=4245
2001-11-20Get rid of the "len" and "captured_len" members of the "packet_info"Guy Harris1-5/+4
structure; they're no longer used. svn path=/trunk/; revision=4236
2001-11-15Get rid of NullTVB, the "compat_top_tvb" member of the "packet_info"Guy Harris1-2/+1
structure, the check for a null tvbuff pointer in "alloc_field_info()", and the "tvb_create_from_top()" macro; they're no longer needed, as there's no non-tvbuffified dissector code remaining. svn path=/trunk/; revision=4205
2001-10-26Fix the rest of the signed/unsigned comparison warnings.Gilbert Ramirez1-2/+2
svn path=/trunk/; revision=4088
2001-09-30"packet-ipv6.c" doesn't need anything from "packet-tcp.h" orGuy Harris1-3/+1
"packet-udp.h", so it shouldn't #include them. svn path=/trunk/; revision=3983
2001-09-04HMIPv6 support, from Martti Kuparinen.Guy Harris1-2/+2
svn path=/trunk/; revision=3907
2001-06-29Create a routine to do the tvbuff-length-adjusting andGuy Harris1-5/+3
"pinfo->{len,captured_len}"-adjusting currently done by the IP dissector, make the IP dissector call that rather than doing the work itself, make the IPv6 dissector call that rather than just adjusting the tvbuff length itself, and make the IPX dissector call that rather than just adjusting "pi.{len,captured_len}" itself. This cleans things up a bit, and causes trailers to be properly reported in IPX-over-Ethernet frames. svn path=/trunk/; revision=3621
2001-06-26indentation consistencies.Jun-ichiro itojun Hagino1-404/+408
svn path=/trunk/; revision=3608
2001-06-18From Joerg Mayer: explicitly fill in all members of aGuy Harris1-36/+36
"header_field_info" structure, including the ones that are later set by the routines to register fields. svn path=/trunk/; revision=3561
2001-06-08Add support for reassemmbling IPv6 fragments, and add an option toGuy Harris1-29/+262
control whether to do it or not. svn path=/trunk/; revision=3528
2001-05-27In the IPv6 dissector, don't bother with the "CHECK_DISPLAY_AS_DATA()",Guy Harris1-13/+10
as it's called only through a handle or a dissector table, and the code that handles those calls does the check. Also, set the Protocol and Info columns before fetching anything from the packet, so they're set if we throw an exception. svn path=/trunk/; revision=3455
2001-04-23Now that the IPv6 dissector has been tvbuffified, we can register it; doGuy Harris1-8/+10
so, make it static, and call it only through a handle. In the ICMPv6 dissector, when we dissect the invoking packet in an ICMPv6 error or in a redirected header option, make the columns non-writable, so the summary line for the packet shows it as an ICMPv6 packet, not as the packet included in the ICMPv6 packet. svn path=/trunk/; revision=3361
2001-04-23Tvbuffification of the IPv6 and ICMPv6 dissectors, and some bug fixesGuy Harris1-109/+134
and an update to draft 7 of ICMPv6 name lookups, from Heikki Vatiainen. Fix some formats in the ICMPv6 dissector to use %u, rather than %d, for unsigned quantities. Show various type and code values in ICMPv6 as decimal, not hexadecimal (they're decimal in the RFCs). svn path=/trunk/; revision=3360
2001-04-19FT_UINTn and FT_INTn fields must always have a base selected for them;Guy Harris1-4/+4
otherwise, the filtering GUI gets very upset when you try to construct a filter expression to test the value of that field. Make them BASE_DEC. svn path=/trunk/; revision=3334
2001-04-17Move the declaration of "etype_vals[]" from "epan/packet.h" toGuy Harris1-4/+4
"etypes.h". svn path=/trunk/; revision=3314
2001-04-17Move the declaration of "ipprotostr()" out of "epan/packet.h" into a newGuy Harris1-1/+2
"ipproto.h" header file. svn path=/trunk/; revision=3313
2001-01-23Mobile IPv6 updates from Borosa Tomislav <tomislav.borosa@SIEMENS.HR>.Gerald Combs1-140/+510
svn path=/trunk/; revision=2935
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