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2001-12-03Make "dissector_add()", "dissector_delete()", and "dissector_change()"Guy Harris1-3/+6
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
2001-10-26Fix the rest of the signed/unsigned comparison warnings.Gilbert Ramirez1-2/+2
svn path=/trunk/; revision=4088
2001-06-18From Joerg Mayer: explicitly fill in all members of aGuy Harris1-31/+31
"header_field_info" structure, including the ones that are later set by the routines to register fields. svn path=/trunk/; revision=3561
2001-05-08Only set the Info column to an error indication if we haven't alreadyGuy Harris1-3/+3
put a packet description there. svn path=/trunk/; revision=3405
2001-05-08Additional LDAP checks for invalid packets, from Scott Renfro.Guy Harris1-5/+20
svn path=/trunk/; revision=3404
2001-04-15Get rid of an unused variable, and fix a typo in a comment.Guy Harris1-4/+2
svn path=/trunk/; revision=3302
2001-04-15Tvbuffify the ASN.1 code and the Kerberos, LDAP, and SNMP dissectors.Guy Harris1-100/+94
Clean up some problems that revealed. svn path=/trunk/; revision=3301
2001-01-10The difference between two pointers doesn't necessarily fit in an "int"Guy Harris1-3/+4
or "unsigned int"; cast it to "unsigned long" and print it with "%lu", so it works on ILP32 and LP64 platforms. svn path=/trunk/; revision=2867
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
2001-01-03Ensure that all value_string arrays end in {0, NULL}. Dissectors got awayGilbert Ramirez1-1/+6
with not terminating their arrays because they knew the limits of the value used to look up strings in the value_string array, but the dfilter_expr_dlg does not know these limits and must rely on the terminating {0, NULL} record. Also, in SNA fixed a bug in which a field should have been defined as FT_UINT8 but was defined as FT_BOOLEAN. In WTP, fixed a value string which had duplicate keys. svn path=/trunk/; revision=2817
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
2000-12-24Rename "asn1_octet_string_value_decode()" toGuy Harris1-4/+5
"asn1_string_value_decode()", as it can be used for various character string types as well. Turn "asn1_octet_string_decode()" into "asn1_string_decode()", which takes an additional argument giving the tag expected for the string in question, and make "asn1_octet_string_decode()" a wrapper around it. Clean up the ASN.1 dissection in the Kerberos dissector, making more use of the code in "asn1.c", wrapping more operations up in macros, and doing some more type checking. Use "REP" rather than "RESP" in names and strings; "REP" is what the Kerberos spec uses. Make the routines in the Kerberos dissector not used outside that dissector static. Fix some problems with the dissection of strings in the Kerberos dissector (it was extracting the data from the wrong place in the packet). In Kerberos V5, the "kvno" item in the EncryptedData type is optional; treat it as such. Treat integers as unsigned in the Kerberos dissector. svn path=/trunk/; revision=2777
2000-11-19For each column, have both a buffer into which strings for that columnGuy Harris1-2/+2
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
2000-08-24Don't assume that you get back from "asn1_octet_string_decode()" aGuy Harris1-15/+55
pointer to a null-terminated string; you get back a null pointer if the octet string is zero-length, and even if it's not zero-length there's no guarantee that the string is null-terminated. svn path=/trunk/; revision=2357
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
2000-08-11Miscellaneous code cleaningLaurent Deniel1-6/+1
- add <stdarg.h> or <varargs.h> in snprintf.h and remove those inclusions in the other #ifdef NEED_SNPRINTF_H codes - remove the check of multiple inclusions in source (.c) code (there is a bit loss of _cpp_ performance, but I prefer the gain of code reading and maintenance; and nowadays, disk caches and VM are correctly optimized ;-). - protect all (well almost) header files against multiple inclusions - add header (i.e. GPL license) in some include files - reorganize a bit the way header files are included: First: #include <system_include_files> #include <external_package_include_files (e.g. gtk, glib etc.)> Then #include "ethereal_include_files" with the correct HAVE_XXX or NEED_XXX protections. - add some HAVE_XXX checks before including some system header files - add the same HAVE_XXX in wiretap as in ethereal Please forgive me, if I break something (I've only compiled and regression tested on Linux). svn path=/trunk/; revision=2254
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
2000-05-31Add routines for adding items to a protocol tree that take arguments ofGuy Harris1-21/+57
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
2000-05-12Doug Nazar's patch to dissect substring filters.Guy Harris1-3/+89
svn path=/trunk/; revision=1949
2000-05-11Add tvbuff class.Gilbert Ramirez1-15/+15
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/+11
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
2000-04-06Add in an include of "snprintf.h" on platforms where it's necessary.Guy Harris1-1/+11
svn path=/trunk/; revision=1805
2000-04-03Another update from Doug Nazar.Guy Harris1-2/+2
svn path=/trunk/; revision=1778
2000-04-03Improvements from Doug Nazar.Guy Harris1-12/+8
One of those improvements adds an "exit now" after we've filled in the protocol and info columns if we're not building a protocol tree, obviating the need for the "parse only the first request in the sequence if we're not building a protocol tree" code I stuck in, so remove the latter code. svn path=/trunk/; revision=1775
2000-03-31Put in the beginnings of checks for ASN.1 dissection errors.Guy Harris1-48/+101
The "present" choice in the type Filter is, in LDAP V2, AttributeType, and, in LDAP V3, it's AttributeDescription. Both of those are just LDAPString, which is, in turn, OCTET STRING, so it should be required to have the primitive representation (unless and until we add support for the constructed representation of octet strings - but RFC 1777, the LDAP V2 spec, says (2) Bitstrings and octet strings and all character string types will be encoded in the primitive form only. and RFC 2251, the LDAP V3 spec, says (2) OCTET STRING values will be encoded in the primitive form only. so we shouldn't ever see it with the constructed representation), and be parsed with "asn1_octet_string_value_decode()", as, by that point, we've already dissected the ASN.1 id and length. Put the bind authorization type into the protocol tree before switching on the type, so that it goes in even if it's not something we yet dissect, and actually pass it as an argument to "proto_tree_add_item()" (alas, "proto_tree_add_item()" is a varargs function, so this error couldn't have been detected by the compiler). When not constructing a protocol tree, quit "dissect_ldap()" after dissecting the first operation - we don't need to dissect the others. svn path=/trunk/; revision=1768
2000-03-29Updates from Doug Nazar.Guy Harris1-239/+300
svn path=/trunk/; revision=1760
2000-03-28Doug Nazar's LDAP dissector.Guy Harris1-97/+857
svn path=/trunk/; revision=1756
2000-01-07Fix Gerald's e-mail address.Guy Harris1-2/+2
svn path=/trunk/; revision=1437
1999-12-09added ldap dissector placeholder, just does request/response for now, until ↵Nathan Neulinger1-0/+158
I have a chance to figure out ASN.1 svn path=/trunk/; revision=1254