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2002-09-28Decode DHCP option 52 (Option Overload). Decode the options embeddedGerald Combs1-9/+78
in the sname and file options as needed. Thanks to Tedd Frechette for the sample capture. svn path=/trunk/; revision=6345
2002-08-28Removed trailing whitespaces from .h and .c files using theJörg Mayer1-28/+28
winapi_cleanup tool written by Patrik Stridvall for the wine project. svn path=/trunk/; revision=6117
2002-08-02Replace the types from sys/types.h and netinet/in.h by their glib.hJörg Mayer1-10/+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
2002-06-29Adjust "voff" regardless of whether we're building a protocol tree, asGuy Harris1-14/+19
it's used in the first pass we make through the packet to see whether it's DHCP or not. svn path=/trunk/; revision=5799
2002-06-19Clarify a comment, for the benefit of those not familiar with RFCspeak.Guy Harris1-2/+2
svn path=/trunk/; revision=5710
2002-06-19Put the status of the broadcast flag into the summary line for the flagsGuy Harris1-5/+7
field. svn path=/trunk/; revision=5709
2002-06-19From Joerg Mayer:Guy Harris1-17/+58
- dissect the flags field properly (some tool sent a wrong bc-flag (0x0100 instead of 0x8000) and the only way to see this was in the hexdump. - The existence of the bootp.vendor field is optional. Iff it's there and the magic is not the dhcp one, this field is exactly 64 bytes long. svn path=/trunk/; revision=5708
2002-05-28From Joerg Mayer: dissect both the BOOTP server and client ports asGuy Harris1-1/+3
bootp/DHCP, to handle PXE clients that send BOOTP requests to destination ports other than 67. svn path=/trunk/; revision=5581
2002-01-24Replace a bunch of "tvb_length()" and "tvb_length_remaining()" calls inGuy Harris1-3/+2
arguments to "proto_tree_add_text()", and to "proto_tree_add_XXX()" calls that add FT_NONE or FT_PROTO items to the protocol tree, with -1. Replace some calls to "tvb_length()" or "tvb_length_remaining()" with calls to "tvb_reported_length()" and "tvb_reported_length_remaining()", as those give the actual length of the data in the packet, not just the data that happened to be captured. svn path=/trunk/; revision=4605
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
2001-12-27RFC 2132 saysGuy Harris1-6/+16
The end option marks the end of valid information in the vendor field. Subsequent octets should be filled with pad options. rather than "must be filled with pad options", so just treat stuff after the end option as padding by marking it all as padding, rather than treating stuff after the end option as additional options, so that if it's not all pad options (bytes containing 0), we don't treat that as an error. svn path=/trunk/; revision=4456
2001-12-27On the first pass through the BOOTP options, check whether data existsGuy Harris1-10/+34
before fetching it, so if an option is malformed, we don't throw an exception before the second pass through the option, which is the pass where they're dissected. svn path=/trunk/; revision=4455
2001-12-10Move the pointer to the "column_info" structure in the "frame_data"Guy Harris1-13/+13
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 Harris1-2/+5
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
2001-11-13Hopefully the last time I have to change my e-mail address.Gilbert Ramirez1-2/+2
svn path=/trunk/; revision=4199
2001-10-31Update the code for the DHCP authentication option to match RFC 3118,Guy Harris1-20/+100
and update the URL for the DHCP parameter value assignments; support a code of 90 for DHCP authentication, as that's what RFC 3118 specifies. Show symbolic values for some of the fields in the DHCP authentication option, and base the decision on whether to dissect the authentication data as HMAC-MD5 data on whether that's what the protocol and algorithm field specified. Show the replay detection value as a 64-bit number only if it's specified to be a monotonically-increasing counter; otherwise, just show it as bytes. svn path=/trunk/; revision=4116
2001-10-29Stop using "tvb_get_ntohll()" and "%llX" in the BOOTP dissector, as theGuy Harris1-23/+5
former depends on having "guint64" and the latter depends on "%ll[douxX]" being what's used to print 64-bit integers, and there are platforms on which Etheeal runs that don't have "guint64" or that don't use "%ll[douxX]" to print 64-bit integers. Get rid of the routines to extract 64-bit integers into "gint64"s and "guint64"s, as per Ronnie Sahlberg's suggestion, to discourage people from writing code that won't work on all platforms; they should be using FT_UINT64, or the routines in "int-64bit.c", instead. svn path=/trunk/; revision=4102
2001-06-18From Joerg Mayer: explicitly fill in all members of aGuy Harris1-17/+17
"header_field_info" structure, including the ones that are later set by the routines to register fields. svn path=/trunk/; revision=3561
2001-05-25We always have to make one pass over the BOOTP options to see if theGuy Harris1-50/+96
packet is BOOTP or DHCP; have "bootp_option()" take a flag indicating whether it's the first pass or the second and, in the first pass, don't put anything in the protocol tree - just return, through pointers, the DHCP packet type and the vendor class ID. On the second pass, don't modify what those pointers point to, just use them as appropriate. Make the vendor class ID pointer local to "dissect_bootp()", and have "dissect_bootp()" do the first pass, set the Protocol and Info columns appropriately if the packet is DHCP, and then, if a protocol tree is to be built, make a second pass, handing "bootp_option()" the DHCP packet type and vendor class ID we found. If the vendor class ID is null, don't try to compare it with Intel's PXE client indicator. svn path=/trunk/; revision=3449
2001-05-24DHCP support for Intel PXEclient DHCP requests, from Joerg Mayer.Guy Harris1-7/+169
svn path=/trunk/; revision=3445
2001-05-03uint8_t changed to guint8Uwe Girlich1-2/+2
svn path=/trunk/; revision=3397
2001-05-01Put in a comment warning thatGuy Harris1-1/+19
1) "tvb_get_ntohll()" isn't available on all platforms (e.g., with at least some compilers on Siemens' Sinix) and 2) "%ll{d,o,x}" won't necessarily print a "long long int" quantity (e.g., on FreeBSD and Digital UNIX). svn path=/trunk/; revision=3394
2001-05-01Added support for DHCP Authentication extensions specified inAshok Narayanan1-3/+111
draft-ietf-dhc-authentication-16.txt svn path=/trunk/; revision=3391
2001-03-13Make tvb_get_ptr() return 'const guint8*', and clean up all theGilbert Ramirez1-2/+2
usages of tvb_get_ptr(). packet-ieee80211.c still has one bad usage, in which it *does* modify the tvbuff's data. svn path=/trunk/; revision=3128
2001-02-13Changes to correctly decode BOOTP option 82, from Greg Kilfoyle.Guy Harris1-4/+44
svn path=/trunk/; revision=3025
2001-01-22Remove more "CHECK_DISPLAY_AS_DATA()" calls and "pinfo->current_proto ="Guy Harris1-5/+1
statements. Move the setting of the Protocol column in various dissectors before anything is fetched from the packet, and also clear the Info column at that point in those and some other dissectors, so that if an exception is thrown, the columns don't reflect the previous protocol. Don't use col_add_fstr(..., "%s", string); Use col_add_str(..., string); as it does the same thing, but doesn't drag all the heavy *printf machinery in. Fix the DDTP dissector to set the Info column regardless of whether we're building a protocol tree or not, and to set it to "Encrypted payload" if the payload is encrypted. Also fix a typo in a field name. Register the FTP data dissector as being associated with the FTP data protocol, not the FTP protocol (the removed "CHECK_DISPLAY_AS_DATA()" call checked "proto_ftp_data", and the removed "pinfo->current_proto =" line set it to "FTP-DATA", so it should be associated with "proto_ftp_data"). Make the H1 dissector check whether the frame has at least 2 bytes in it before checking the first two bytes; heuristic dissectors must not throw exceptions until they've accepted the packet as one of theirs. Use "tvb_format_text()" rather than "tvb_get_ptr()" and "format_text()" in some dissectors where the result of "tvb_get_ptr()" is used only in the "format_text()" call. In the Quake dissector, don't check whether there are at least 4 bytes in the packet - if we return, the packet won't be dissected at all (it's not as if some other dissector will get to handle it), and, if we don't return, we'll throw an exception if there aren't at least 4 bytes in the packet, so the packet will be marked as short or malformed, as appropriate. In the RIPng dissector, associate the table of strings for the command field with the command field, so that the dissector doesn't have to format the string for the protocol tree entry itself, and so that the filter construction dialog box can let you select "Request" or "Response" from a list rather than requiring you to know the values for "Request" and "Response". Make "dissect_rpc()" static, as it's called only through a heuristic dissector list. Use "col_set_str()" to set the COL_PROTOCOL column for RPC protocols; the string used is from a table provided by the dissector, and is a string constant. Don't format the Info column for WSP into a buffer and then format that buffer into the column with "%s" - "col_add_fstr()" can do the formatting for you, without having to allocate your own buffer (or run through the *printf machinery twice). Don't fetch fields from the WTP packet until you're ready to use them, so that you don't throw an exception before you even set the Protocol column or clear the Info column. Use "pinfo->destport", not "pi.destport", in the Zebra dissector when checking whether the packet is a request or reply, and do the check by comparing with "pinfo->match_port" rather than TCP_PORT_ZEBRA (so that if the dissector is ever registered on another port, it still correctly determines whether the packet is a request or reply - the Network Monitor HTTP dissector has port 80 wired into its brain, which is a bit irritating if you're trying to get it to dissect HTTP proxy traffic on port 3128 or proxy administration UI traffic on port 3132). svn path=/trunk/; revision=2931
2001-01-09Add an additional "protocol index" argument to "{old_}dissector_add()",Guy Harris1-2/+2
"{old_}heur_dissector_add()", "{old_}conv_dissector_add()", and "register_dissector()", so that an entry in those tables has associated with it the protocol index of the protocol the dissector handles (or -1, if there is no protocol index for it). This is for future use in a number of places. (Arguably, "proto_register_protocol()" should take a dissector pointer as an argument, but 1) it'd have to handle both regular and heuristic dissectors; 2) making it take either a "dissector_t" or a union of that and a "heur_dissector_t" introduces some painful header-file interdependencies so I'm punting on that for now. As with other Ethereal internal APIs, these APIs are subject to change in the future, at least until Ethereal 1.0 comes out....) svn path=/trunk/; revision=2849
2001-01-03Tvbuffify the BOOTP/DHCP dissector.Guy Harris1-206/+267
svn path=/trunk/; revision=2819
2001-01-03Have "proto_register_protocol()" build a list of data structures forGuy Harris1-2/+3
protocols, in addition to adding structures to the list of filterable fields. Give it an extra argument that specifies a "short name" for the protocol, for use in such places as pinfo->current_proto; the dialog box for constructing filters; the preferences tab for the protocol; and so on (although we're not yet using it in all those places). Make the preference name that appears in the preferences file and the command line for the DIAMETER protocol "diameter", not "Diameter"; the convention is that the name in question be all-lower-case. Make some routines and variables that aren't exported static. Update a comment in the ICP dissector to make it clear that the dissector won't see fragments other than the first fragment of a fragmented datagram. svn path=/trunk/; revision=2810
2000-11-19For each column, have both a buffer into which strings for that columnGuy Harris1-4/+4
can be put, and a pointer to the string for the column, which might or might not point to that buffer. Add a routine "col_set_str()", which sets the string for the column to the string passed to it as an argument; it should only be handed a static string (a string constant would be ideal). It doesn't do any copying, so it's faster than "col_add_str()". Make the routines that append to columns check whether the pointer to the string for the column points to the buffer for the column and, if not, copy the string for the column to the buffer for the column so that you can append to it (so you can use "col_set_str()" and then use "col_append_str()" or "col_append_fstr()"). Convert a bunch of "col_add_str()" calls that take a string constant as an argument to "col_set_str()" calls. Convert some "col_add_fstr()" calls that take a string constant as the only argument - i.e., the format string doesn't have any "%" slots into which to put strings for subsequent arguments to "col_set_str()" calls (those calls are just like "col_add_str()" calls). Replace an END_OF_FRAME reference in a tvbuffified dissector with a "tvb_length(tvb)" call. svn path=/trunk/; revision=2670
2000-11-17Add #include <string.h>, to get prototypes for mem* and str* functions.Gilbert Ramirez1-1/+2
svn path=/trunk/; revision=2654
2000-08-13Add the "Edit:Protocols..." feature which currently only implementsLaurent Deniel1-1/+3
the following: It is now possible to enable/disable a particular protocol decoding (i.e. the protocol dissector is void or not). When a protocol is disabled, it is displayed as Data and of course, all linked sub-protocols are disabled as well. Disabling a protocol could be interesting: - in case of buggy dissectors - in case of wrong heuristics - for performance reasons - to decode the data as another protocol (TODO) Currently (if I am not wrong), all dissectors but NFS can be disabled (and dissectors that do not register protocols :-) I do not like the way the RPC sub-dissectors are disabled (in the sub-dissectors) since this could be done in the RPC dissector itself, knowing the sub-protocol hfinfo entry (this is why, I've not modified the NFS one yet). Two functions are added in proto.c : gboolean proto_is_protocol_enabled(int n); void proto_set_decoding(int n, gboolean enabled); and two MACROs which can be used in dissectors: OLD_CHECK_DISPLAY_AS_DATA(index, pd, offset, fd, tree) CHECK_DISPLAY_AS_DATA(index, tvb, pinfo, tree) See also the XXX in proto_dlg.c and proto.c around the new functions. svn path=/trunk/; revision=2267
2000-08-09Phil Techau's fix to BOOTP when client address not supplied.Guy Harris1-3/+3
Give Phil credit for the other stuff he added as well. svn path=/trunk/; revision=2236
2000-08-07Allow either old-style (pre-tvbuff) or new-style (tvbuffified)Guy Harris1-2/+2
dissectors to be registered as dissectors for particular ports, registered as heuristic dissectors, and registered as dissectors for conversations, and have routines to be used both by old-style and new-style dissectors to call registered dissectors. Have the code that calls those dissectors translate the arguments as necessary. (For conversation dissectors, replace "find_conversation_dissector()", which just returns a pointer to the dissector, with "old_try_conversation_dissector()" and "try_conversation_dissector()", which actually call the dissector, so that there's a single place at which we can do that translation. Also make "dissector_lookup()" static and, instead of calling it and, if it returns a non-null pointer, calling that dissector, just use "old_dissector_try_port()" or "dissector_try_port()", for the same reason.) This allows some dissectors that took old-style arguments and immediately translated them to new-style arguments to just take new-style arguments; make them do so. It also allows some new-style dissectors not to have to translate arguments before calling routines to look up and call dissectors; make them not do so. Get rid of checks for too-short frames in new-style dissectors - the tvbuff code does those checks for you. Give the routines to register old-style dissectors, and to call dissectors from old-style dissectors, names beginning with "old_", with the routines for new-style dissectors not having the "old_". Update the dissectors that use those routines appropriately. Rename "dissect_data()" to "old_dissect_data()", and "dissect_data_tvb()" to "dissect_data()". svn path=/trunk/; revision=2218
2000-07-25A pile of DHCP option names, supplied by Jose Pedro Oliveira.Guy Harris1-4/+59
svn path=/trunk/; revision=2159
2000-07-09Check the options in a BOOTP packet regardless of whether the protocolGuy Harris1-345/+352
tree is to be constructed or not; if it has the DHCP option, we want to mark the packet as DHCP even if we're not constructing the protocol tree. Extract the code to process Netware/IP suboptions into a separate routine. svn path=/trunk/; revision=2129
2000-07-08The BOOTP "magic cookie" should be added in exactly the same fashionGuy Harris1-5/+4
regardless of whether it's valid or not - extract all four bytes and add that as the value. svn path=/trunk/; revision=2123
2000-05-31Add routines for adding items to a protocol tree that take arguments ofGuy Harris1-14/+14
a particular type, rather than taking a varargs list, along the lines of the "proto_tree_add_XXX_format()" routines. Replace most calls to "proto_tree_add_item()" and "proto_tree_add_item_hidden()" with calls to those routines. Rename "proto_tree_add_item()" and "proto_tree_add_item_hidden()" to "proto_tree_add_item_old()" and "proto_tree_add_item_hidden_old()", and add new "proto_tree_add_item()" and "proto_tree_add_item_hidden()" routines that don't take the item to be added as an argument - instead, they fetch the argument from the packet whose tvbuff was handed to them, from the offset handed to them. svn path=/trunk/; revision=2031
2000-05-19Add protection against 0-length FT_BYTES being added to proto_tree.Gilbert Ramirez1-7/+13
Convert ethertype() and dissect_null() to use tvbuff. svn path=/trunk/; revision=1979
2000-05-19Mark DHCP packets as DHCP, and add boot.dhcp flag.Gilbert Ramirez1-1/+18
From Paul Ionescu <ipaul@romsys.ro> svn path=/trunk/; revision=1977
2000-05-11Add tvbuff class.Gilbert Ramirez1-66/+66
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
2000-04-08Move calls to "dissector_add()" out of the register routines for TCP andGuy Harris1-2/+10
UDP and into the handoff registration routines for the protocols in question. Make the dissectors for those protocols static if they're not called outside the dissector's source file. Get rid of header files if all they did was declare dissectors that are now static; remove declarations of now-static dissectors from header files that do more than just declare the dissector. svn path=/trunk/; revision=1823
2000-03-29Fix from Michael Johnston to check the correct bit when testing theGuy Harris1-3/+3
broadcast flag in DHCP packets. svn path=/trunk/; revision=1761
2000-03-20Added Novell option decoding patch from Fredrik Sorensson <fsn@volvo.se>.Gerald Combs1-5/+104
svn path=/trunk/; revision=1731
2000-03-12Break proto_tree_add_item_format() into multiple functions:Gilbert Ramirez1-9/+9
proto_tree_add_protocol_format() proto_tree_add_uint_format() proto_tree_add_ipxnet_format() proto_tree_add_ipv4_format() proto_tree_add_ipv6_format() proto_tree_add_bytes_format() proto_tree_add_string_format() proto_tree_add_ether_format() proto_tree_add_time_format() proto_tree_add_double_format() proto_tree_add_boolean_format() If using GCC 2.x, we can check the print-format against the variable args passed in. Regardless of compiler, we can now check at run-time that the field type passed into the function corresponds to what that function expects (FT_UINT, FT_BOOLEAN, etc.) Note that proto_tree_add_protocol_format() does not require a value field, since the value of a protocol is always NULL. It's more intuitive w/o the vestigial argument. Fixed a proto_tree_add_item_format-related bug in packet-isis-hello.c Fixed a variable usage bug in packet-v120.c. (ett_* was used instead of hf_*) Checked in Guy's fix for the function declearation for proto_tree_add_text() and proto_tree_add_notext(). svn path=/trunk/; revision=1713
2000-02-14Fix from Dietmar Petras to the BOOTP dissector - entries for BOOTPGuy Harris1-1/+3
options 62 and 63 were missing, and the table from which they were missing was an array indexed by the option number, so options 62 and above were decoded incorrectly. svn path=/trunk/; revision=1636
2000-01-22Fix files that had Gilbert's old e-mail address or that didn't have myGuy Harris1-2/+2
forwarding e-mail address. svn path=/trunk/; revision=1522
2000-01-07Fix Gerald's e-mail address.Guy Harris1-2/+2
svn path=/trunk/; revision=1437
1999-11-27Pull the code to dissect an ATM NSAP address out of "packet-q2931.c" andGuy Harris1-1/+2
put it into a subroutine in "packet-arp.c", and call it from "packet-q2931.c". Add a "packet-arp.h" header to hold declarations of routines exported by "packet-atm.c" (other than the ATM dissector itself), moving them out of "packet.h". Use the aforementioned NSAP dissector to display ATM addresses in NSAP format, and display E.164 addresses as ASCII text (under the assumption that they're presented as a string of IA5, i.e. ASCII, characters, just as they are in Q.931). svn path=/trunk/; revision=1124
1999-11-16Replace the ETT_ "enum" members, declared in "packet.h", withGuy Harris1-8/+16
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