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2004-01-03Apply the patches from Tadaaki Nagao for a global version of disabledRichard Sharpe1-8/+8
protocols ... svn path=/trunk/; revision=9538
2003-12-24In "alloc_field_info()", handle the case where the offset is past theGuy Harris1-1/+20
byte past the end of the tvbuff. svn path=/trunk/; revision=9445
2003-12-24Let FT_PROTOCOL fields, if the length specified is -1, have a length ofGuy Harris1-1/+4
0 - now that "tvb_ensure_length_remaining()" ensures that there's at least one byte of data, we should use "tvb_length_remaining()" for FT_PROTOCOL fields. svn path=/trunk/; revision=9440
2003-12-06Add the ability to print packet dissections in PDML (an XML-based format)Gilbert Ramirez1-1/+41
to tethereal. It could be added to Ethereal, but the GUI changes to allow the user to select PDML as a print format have not been added. Provide a python module (EtherealXML.py) to help parse PDML. Provide a sample app (msnchat) which uses tethereal and EtherealXML.py to reconstruct MSN Chat sessions from packet capture files. It produces a nice HTML report of the chat sessions. Document tethereal's PDML and EtherealXML.py usage in doc/README.xml-output Update tethereal's manpage to reflect the new [-T pdml|ps|text] option svn path=/trunk/; revision=9180
2003-12-04It turns out the protocol tree parent link was used, so we need it inGuy Harris1-1/+3
our new scheme. svn path=/trunk/; revision=9172
2003-12-04Don't use GNodes for the protocol tree, put the sibling pointer, andGuy Harris1-25/+117
pointers to the first *and* last child, in the "proto_node" structure itself. That saves us one level of indirection and memory allocation, and lets us append to a tree by appending to the last child directly, rather than having to scan through the list of siblings of the first child to find the end of that list. svn path=/trunk/; revision=9171
2003-12-03performance updateRonnie Sahlberg1-5/+3
replace tvb_raw_offset() which is essentially a simple assignment and which is called a lot with a macro. this makes my tethereal testcase 2-3% faster. svn path=/trunk/; revision=9152
2003-12-03The "ptr_u" unions no longer have a "next" pointer - they now just haveGuy Harris1-25/+24
one member - or have one that's not used, so get rid of those unions. svn path=/trunk/; revision=9151
2003-12-03Instead of requiring slab-allocated structures to have a "next" pointer,Guy Harris1-7/+7
when adding them to the free list, cast the pointer to the structure to a pointer to a "freed_item_t" which contains the "next" pointer. This reduces the memory requirement for some of those structures, and leaves us free to slab-allocate structures that have a "next" pointer for other reasons. svn path=/trunk/; revision=9150
2003-12-02From Didier Gautheron: put an "fvalue_t" structure into a "field_info"Guy Harris1-47/+46
structure, rather than separately allocating "fvalue_t"s and having the "field_info" structure point to them - this appears to speed up protocol tree construction a bit. svn path=/trunk/; revision=9146
2003-12-02Move the definition of the tvbuff_t structure and friends to tvbuff.hRonnie Sahlberg1-6/+3
so that we can change tvb_get_ds_tvb() into a macro. This function was a single line assignment and was called a lot. This made tethereal ~2.5% faster in one testcase I use. svn path=/trunk/; revision=9141
2003-12-02Use the LSAB_ALLOC and SLAB_FREE macros to allocate/free fvalue_t dataRonnie Sahlberg1-3/+1
svn path=/trunk/; revision=9140
2003-12-02Moving SLAB_ALLOC and SLAB_FREE to its own header fileRonnie Sahlberg1-24/+2
svn path=/trunk/; revision=9139
2003-11-26Speed updatesRonnie Sahlberg1-92/+47
create generic macros for allocating/freeing structures. remove one more slow GMemChunk and replace it with a simple linked list ~4% speed improvement in my tests. the allocated data is never freed. this may be a problem if ethereal is ever supported on a platform lacking resource tracking but makes the implementation faster and simpler. svn path=/trunk/; revision=9095
2003-11-25As with fvalue_t, so with field_info and item_label - the individualGuy Harris1-13/+33
items aren't individually g_mallocated and can't be g_freed, only the chunks can. svn path=/trunk/; revision=9091
2003-11-25replace free_node_field_info with a macro since it is only called from one ↵Ronnie Sahlberg1-8/+5
other place in the code and this reduces one unnecessary function call overhead. and it makes ethereal ~1% faster. svn path=/trunk/; revision=9088
2003-11-25rename FREE_FIELD_INFO to FIELD_INFO_FREE for consistencyRonnie Sahlberg1-3/+3
svn path=/trunk/; revision=9087
2003-11-25create a FIELD_INFO_NEW for consistencyRonnie Sahlberg1-14/+16
svn path=/trunk/; revision=9086
2003-11-25remove another slow GMemChunk from ethereal making ethereal a little bit fasterRonnie Sahlberg1-25/+44
svn path=/trunk/; revision=9085
2003-11-25change free_field_info to FREE_FIELD_INFO to indicate it is a macro and not ↵Ronnie Sahlberg1-3/+3
a function svn path=/trunk/; revision=9084
2003-11-25fvalue_free() is one of the most called functions.Ronnie Sahlberg1-2/+3
This function is also very small, so small that teh overhead for the actual function call and return is likely to be a significant part of its execution time. change it into a macro and make it thus slightly faster by eliminating the function call overhead. svn path=/trunk/; revision=9083
2003-11-24Make the recent epan/proto.{c,h} change compile.Guy Harris1-28/+28
svn path=/trunk/; revision=9075
2003-11-24performance enhancement to proto.cRonnie Sahlberg1-21/+60
Removed the GMemChunk used to allocate/free field_info structures and used a free list to store the freed structs until they are allocated again. Ethereal will allocate more field_info structs as it needs to but never free them. Instead the are just placed in a cheap and fast free list so that if we want to use the struct again, this will be fast. This affects the speed of the two functions alloc_field_info() that should be slightly faster now free_field_info() that was replaced with a 2 line macro. All in all my testing suggests that ethereal is 2-3% faster with this patch. svn path=/trunk/; revision=9073
2003-11-22As per Guys suggestion, continue optimizing proto.c to macroize itRonnie Sahlberg1-50/+37
and make it even faster svn path=/trunk/; revision=9064
2003-11-21Performance fixRonnie Sahlberg1-14/+33
In the GPROF logs proto_registrar_get_nth() used to take anything between 2.5 and 5.5% of the time. Replace the GLIB array with a handroleld one for one of the private structures. the function should now be virtually zero cost and thus ethereal should be 2.5-5.5% faster on those traces. anyone that wants to, please rerun GPROF with this fix and see what has changed. svn path=/trunk/; revision=9058
2003-11-20Use "tvb_get_string()" in "proto_tree_set_string_tvb()" - it won't leakGuy Harris1-4/+2
memory if it throws an exception, as it checks whether the entire string is in the tvbuff *before* allocating a buffer for it, and that also means that if the length is absurdly large, an exception will be thrown, rather than the memory allocation failing. svn path=/trunk/; revision=9043
2003-11-16Export "protocol_t" as an opaque type.Guy Harris1-15/+13
Make "proto_is_protocol_enabled()" and "proto_get_protocol_short_name()" take a "protocol_t *" as an argument, so they don't have to look up the "protocol_t" - this will probably speed them up considerably, and they're called on almost every dissector handoff. Get rid of a number of "proto_is_protocol_enabled()" calls that aren't necessary (dissectors called through handles, including those called through dissector tables, or called as heuristic dissectors, aren't even called if their protocol isn't enabled). Change some direct dissector calls to go through handles. svn path=/trunk/; revision=8979
2003-11-13Require that field names contain only alphanumerics, "-", "_", and ".".Guy Harris1-1/+10
Fix the names that contained other characters. svn path=/trunk/; revision=8959
2003-10-29Make the "fvalue_set" methods for types whose value is allocated freeGuy Harris1-1/+26
any previously-allocated version first, so that they don't leak memory. From Olivier Biot: add a "proto_item_append_string()" routine, to append to the string value a protocol tree item has. svn path=/trunk/; revision=8821
2003-10-06When registering a field, make sure its ID is -1 or 0 - if it's not,Guy Harris1-1/+11
that probably means you've registered two fields with the same field ID variable, which is an error. Fix the bugs doing so found. svn path=/trunk/; revision=8629
2003-08-25From Matthijs Melchior:Guy Harris1-81/+81
support for registering fields after all the protocol registration routines are called (i.e., adding fields to the named field tree as they're registered); fix the GTK 2.x version of the field list dialog to show the correct name. svn path=/trunk/; revision=8248
2003-07-31Give FT_IPv4 val_repr_len and val_to_repr methods, and use them forGuy Harris1-13/+2
generating display filters from FT_IPv4 fields. svn path=/trunk/; revision=8110
2003-07-31Add val_repr_len and val_to_repr methods for FT_FLOAT and FT_DOUBLE, andGuy Harris1-35/+3
use them when generating display filters to match field values. Use "%{FLT_DIG}g" rather than "%{FLT_DIG}f" for FT_FLOAT. svn path=/trunk/; revision=8109
2003-07-30Give FT_ABSOLUTE_TIME and FT_RELATIVE_TIME val_repr_len and val_to_reprGuy Harris1-32/+4
methods, and use them when constructing display filters. svn path=/trunk/; revision=8107
2003-07-07Mark the "plugin_dir" argument to "proto_init()" as unused if we don'tGuy Harris1-2/+7
have plugin support. (Don't do so if we *do* have it, because if "proto_init()" ever changes so that it doesn't use the argument even if we have plugin support, we want a warning so we know that we should get rid of that argument.) svn path=/trunk/; revision=7972
2003-07-04Use FLT_DIG and DBL_DIG from float.h to create printf-style print formatGilbert Ramirez1-5/+10
for FT_FLOAT and FT_DOUBLE values. svn path=/trunk/; revision=7962
2003-06-12Add new routines:Guy Harris1-11/+6
tvb_get_string() - takes a tvbuff, an offset, and a length as arguments, allocates a buffer big enough to hold a string with the specified number of bytes plus an added null terminator (i.e., length+1), copies the specified number of bytes from the tvbuff, at the specified offset, to that buffer and puts in a null terminator, and returns a pointer to that buffer (or throws an exception before allocating the buffer if that many bytes aren't available in the tvbuff); tvb_get_stringz() - takes a tvbuff, an offset, and a pointer to a "gint" as arguments, gets the size of the null-terminated string starting at the specified offset in the tvbuff (throwing an exception if the null terminator isn't found), allocates a buffer big enough to hold that string, copies the string to that buffer, and returns a pointer to that buffer and stores the length of the string (including the terminating null) in the variable pointed to by the "gint" pointer. Replace many pieces of code allocating a buffer and copying a string with calls to "tvb_get_string()" (for one thing, "tvb_get_string()" doesn't require you to remember that the argument to "tvb_get_nstringz0()" is the size of the buffer into which you're copying the string, which might be the length of the string to be copied *plus 1*). Don't use fixed-length buffers for null-terminated strings (even if the code that generates those packets has a #define to limit the length of the string). Use "tvb_get_stringz()", instead. In some cases where a value is fetched but is only used to pass an argument to a "proto_tree_add_XXX" routine, use "proto_tree_add_item()" instead. svn path=/trunk/; revision=7859
2003-06-11Put in a missing "break" statement.Guy Harris1-1/+2
svn path=/trunk/; revision=7850
2003-06-11Expand the ability of fvalue_to_string_repr, and modify more FT_* typesGilbert Ramirez1-36/+19
to provide that method. svn path=/trunk/; revision=7849
2003-06-10Get rid of an unused variable.Guy Harris1-2/+1
svn path=/trunk/; revision=7832
2003-06-05Use "=" instead of "==" in an assignment.Gerald Combs1-2/+2
svn path=/trunk/; revision=7792
2003-06-05When "proto_tree_add_item()" is used with FT_STRINGZ with a lengthGuy Harris1-11/+34
value, just copy the specified number of bytes and stick a '\0' at the end, don't use "tvb_get_nstringz0()" - yes, you end up copying more bytes, but you don't have to bother looking for a '\0' that might not even be present (if the string is null-padded rather than null-terminated). Also, set the length of the item to the specified length, rather than to the length up to the terminating '\0' - if the string is null-padded, the field should include all the padding bytes. svn path=/trunk/; revision=7785
2003-06-04When "proto_tree_add_item()" is used with an FT_STRINGZ and given aGuy Harris1-24/+67
length (rather than being given -1), the length is, in most cases, the maximum length of a null-*padded* string, rather than the actual length of a null-*terminated* string. Treat it as such - allocate a buffer one larger than the length (to leave room for a terminating '\0'), and pass the size of that buffer to "tvb_get_nstringz0()". (Otherwise, in those cases, the last character of the string is chopped off.) Allow "proto_tree_add_string()" to add FT_STRINGZ items to the protocol tree, as well as FT_STRING items. In "alloc_field_info()", if we're passed a length of -1 and the field is an FT_STRINGZ, don't make the length be the length remaining in the tvbuff; that way, you *can* use a length of -1 in "proto_tree_add_item()" for an FT_STRINGZ item, and have it get the actual length by looking for the terminating '\0'. (We might want to distinguish between null-terminated and null-padded strings, e.g. with an FT_STRINGZPAD type. Null-terminated strings rarely, if ever, have a specified length; the length is found by scanning for the terminating '\0'. Null-padded strings presumably always have a specified length, which is the length to which the string is padded.) svn path=/trunk/; revision=7784
2003-05-19More tvb_get_nstringz0() fixes. Timo Sirainen pointed out that BadGerald Combs1-19/+20
Things can happen if we pass a zero buffer length to tvb_get_nstringz0(). Throw an exception if this happens. In various dissectors make sure the tvb_get_nstringz0()'s buffer length is greater than zero. svn path=/trunk/; revision=7688
2003-05-03Add a note about the "val_to_string_repr" and "string_repr_len" forGuy Harris1-1/+24
ftypes, and how to add them to more types and use them in more places. svn path=/trunk/; revision=7636
2003-05-03Rename "proto_alloc_dfilter_string()" toGuy Harris1-23/+104
"proto_construct_dfilter_string()", to more accurately reflect what it does. Give it, and "proto_can_match_selected()", an "epan_dissect_t *" argument, which replaces the raw data pointer argument to "proto_construct_dfilter_string()". For fields that don't have a type we can directly filter on, we don't support filtering on the field as raw data if: the "epan_dissect_t *" argument is null; the data source tvbuff for the field isn't the tvbuff for the "epan_dissect_t" in question (i.e., it's in the result of a reassembly, and "frame[N:M]" can't get at it). Trim the length the raw data in the case of such a field to the length of the tvbuff for the "epan_dissect_t" in question, so we don't go past it. Fetch the raw data bytes to match from that tvbuff. Have "proto_construct_dfilter_string()" return a null pointer if it can't construct the filter string, and have "protocolinfo_packet()" in the tap-protocolinfo tap ignore a field if "proto_construct_dfilter_string()" can't construct a filter string for it - and have it pass NULL as the "epan_dissect_t *", for now. If somebody decides it makes sense to dump out a "frame[N:M] =" value for non-registered fields, it can be changed to pass "edt". svn path=/trunk/; revision=7635
2003-04-29Add a "proto_item_set_end()" routine that sets the length of an itemGuy Harris1-1/+20
given a tvbuff/offset pair referring to the byte past the end of the item. Use it in one place in the SMB dissector (there are plenty of other places where it could be used as well). svn path=/trunk/; revision=7603
2003-02-08Provide a way for ftype modules to provide a string representationGilbert Ramirez1-23/+8
of their value. Provide such a method for FT_BYTES, FT_UINT_BYTES, and FT_ETHER. Have proto_alloc_dfilter_string() use the new methods. This is part of a movement of ftype-related code out of proto.c and into the ftype code. The immediate effect is that generated display filters for long byte sequences don't incorrectly have trailing periods ("...") to indicate continuation. svn path=/trunk/; revision=7100
2003-01-31Get rid of BASE_BIN - it's just the same as BASE_DEC, but people seemedGuy Harris1-6/+1
to be using it for stuff that should be hex, and for stuff that should be Boolean. Use BASE_DEC if it should be decimal, BASE_HEX if it should be hex, and make it Boolean if it should be Boolean. svn path=/trunk/; revision=7053
2003-01-21Fix a typo.Gerald Combs1-2/+2
svn path=/trunk/; revision=6956
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