The FTREPR_DFILTER format for floating-point numbers
is using an inexact representation so using "apply as
filter" on a floating-point protocol field does not produce a
match, as could be reasonably expected, because we don't
get back the same floating-point number.
Using g_ascii_dtostr() instead produces a string with enough
precision to get back the same machine number with IEEE 754 doubles.
Fixes#16483.
ftype-double.c:89:1: warning: no previous prototype for function 'val_unary_minus'
ftype-double.c:96:1: warning: no previous prototype for function 'val_add'
ftype-double.c:103:1: warning: no previous prototype for function 'val_subtract'
ftype-double.c:110:1: warning: no previous prototype for function 'val_multiply'
ftype-double.c:117:1: warning: no previous prototype for function 'val_divide'
ftype-integer.c:670:1: warning: no previous prototype for function 'uint_bitwise_and'
ftype-integer.c:677:1: warning: no previous prototype for function 'uint_is_zero'
ftype-integer.c:683:1: warning: no previous prototype for function 'uint_is_negative'
ftype-integer.c:689:1: warning: no previous prototype for function 'uint_unary_minus'
ftype-integer.c:704:1: warning: no previous prototype for function 'uint64_bitwise_and'
ftype-integer.c:711:1: warning: no previous prototype for function 'uint64_is_zero'
ftype-integer.c:717:1: warning: no previous prototype for function 'uint64_is_negative'
ftype-integer.c:723:1: warning: no previous prototype for function 'uint64_unary_minus'
ftype-integer.c:738:1: warning: no previous prototype for function 'sint_bitwise_and'
ftype-integer.c:745:1: warning: no previous prototype for function 'sint_is_zero'
ftype-integer.c:751:1: warning: no previous prototype for function 'sint_is_negative'
ftype-integer.c:757:1: warning: no previous prototype for function 'sint_unary_minus
ftype-integer.c:764:1: warning: no previous prototype for function 'sint64_bitwise_and'
ftype-integer.c:771:1: warning: no previous prototype for function 'sint64_is_zero'
ftype-integer.c:777:1: warning: no previous prototype for function 'sint64_is_negative'
ftype-integer.c:783:1: warning: no previous prototype for function 'sint64_unary_minus'
packet-bpv6.c:2182:1: warning: no previous prototype for function 'proto_register_bpv6'
packet-bpv6.c:2766:1: warning: no previous prototype for function 'proto_reg_handoff_bpv6'
packet-bpv7.c:1978:6: warning: no previous prototype for function 'proto_register_bpv7'
packet-bpv7.c:2037:6: warning: no previous prototype for function 'proto_reg_handoff_bpv7'
packet-realtek.c:349:1: warning: no previous prototype for function 'proto_register_realtek'
packet-realtek.c:436:1: warning: no previous prototype for function 'proto_reg_handoff_realtek'
packet-tcpcl.c:2147:1: warning: no previous prototype for function 'proto_register_tcpclv3'
packet-tcpcl.c:2211:1: warning: no previous prototype for function 'proto_reg_handoff_tcpclv3'
Add support for display filter binary addition and subtraction.
The grammar is intentionally kept simple for now. The use case
is to add a constant to a protocol field, or (maybe) add two
fields in an expression.
We use signed arithmetic with unsigned numbers, checking for
overflow and casting where necessary to do the conversion.
We could legitimately opt to use traditional modular arithmetic
instead (like C) and if it turns out that that is more useful for
some reason we may want to in the future.
Fixes#15504.
This adds a _ws.ftypes namespace with protocol fields with all
the existing field types.
Currently this is only useful to debug the display filter compiler,
without having to find a real protocol field with the desired type.
Later it may find other uses.
This change implements a unary minus operator.
Filter: tcp.window_size_scalefactor == -tcp.dstport
Instructions:
00000 READ_TREE tcp.window_size_scalefactor -> reg#0
00001 IF_FALSE_GOTO 6
00002 READ_TREE tcp.dstport -> reg#1
00003 IF_FALSE_GOTO 6
00004 MK_MINUS -reg#1 -> reg#2
00005 ANY_EQ reg#0 == reg#2
00006 RETURN
It is supported for integer types, floats and relative time values.
The unsigned integer types are promoted to a 32 bit signed integer.
Unary plus is implemented as a no-op. The plus sign is simply ignored.
Constant arithmetic expressions are computed during compilation.
Overflow with constants is a compile time error. Overflow with
variables is a run time error and silently ignored. Only a debug
message will be printed to the console.
Related to #15504.
Add support for masking of bits. Before the bitwise operator
could only test bits, it did not support clearing bits.
This allows testing if any combination of bits are set/unset
more naturally with a single test. Previously this was only
possible by combining several bitwise predicates.
Bitwise is implemented as a test node, even though it is not.
Maybe the test node should be renamed to something else.
Fixes#17246.
A literal value is a value that cannot be interpreted as a
registered protocol. An unparsed value can be a literal or
an identifier (protocol/field) according to context and the
current disambiguation rules.
Strictly literal here is to be understood to mean "numeric
literal, including numeric arrays, but not strings or character
constants".
Replace:
g_snprintf() -> snprintf()
g_vsnprintf() -> vsnprintf()
g_strdup_printf() -> ws_strdup_printf()
g_strdup_vprintf() -> ws_strdup_vprintf()
This is more portable, user-friendly and faster on platforms
where GLib does not like the native I/O.
Adjust the format string to use macros from intypes.h.
Invalid character constants should be handled in the lexical scanner.
Todo: See if some code could be shared to parse double quoted strings.
It also fixes some unintuitive type coercions to string. Character
constants should be treated as characters, or maybe integers, or
maybe even throw an invalid comparison error, but coverting to a
literal string or byte array is surprising and not particularly
useful:
'\xFF' -> "'\xFF'" (equals)
'\xFF' -> "FF" (contains)
Before:
Filter: http.request.method contains "\x63"
Constants:
00000 PUT_FVALUE "c" <FT_STRING> -> reg#1
(...)
Filter: http.request.method contains '\x63'
Constants:
00000 PUT_FVALUE "63" <FT_STRING> -> reg#1
(...)
Filter: http.request.method == "\x63"
Constants:
00000 PUT_FVALUE "c" <FT_STRING> -> reg#1
(...)
Filter: http.request.method == '\x63'
Constants:
00000 PUT_FVALUE "'\\x63'" <FT_STRING> -> reg#1
(...)
After:
Filter: http.request.method contains '\x63'
Constants:
00000 PUT_FVALUE "c" <FT_STRING> -> reg#1
(...)
Filter: http.request.method == '\x63'
Constants:
00000 PUT_FVALUE "c" <FT_STRING> -> reg#1
(...)
The implementation is pre-computing the length and using that
to allocate a buffer. This doesn't have any practical advantage
and is inefficient because the code is mostly doing the same work
twice. Remove the unnecessary length pre-computation step.
All the order operators can be defined in terms of 'lt'
and 'eq' so use that to reduce the number of required
methods from 6 to 2.
Further reduce to one by combining those two into a single
function that has memcmp semantics: negative return is
"less than", positive is "greater than" and zero is equal.
Use a locale-independent glib routine to format floating point numbers.
This avoids displaying floating point numbers as "86399,9921875" with
LC_ALL=nl_NL.UTF-8.
This output is consistent with val_from_unparsed which is used for
parsing display filter values and is already locale-independent. Note
that the displayed node labels in the dissection tree is still
locale-dependent (see proto_item_fill_label for FT_DOUBLE).
Bug: 15437
Change-Id: I64dd2b7dbb453022edf88b3052e2f67066189427
Reviewed-on: https://code.wireshark.org/review/31869
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Delete get_value_ptr from struct _ftype_t, make it
part of the get_value union.
Change-Id: I947331069662a7043bd838e622d286629cc7be9a
Reviewed-on: https://code.wireshark.org/review/20647
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete get_value_uinteger from struct _ftype_t, make it
part of the get_value union.
Change-Id: I4a6c8341676c442e2bf8ae3b8f771b72161d133c
Reviewed-on: https://code.wireshark.org/review/20640
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete get_value_sinteger from struct _ftype_t, make it
part of the get_value union.
Change-Id: I3127252cafc62389ce426639992f1d59f7ac9731
Reviewed-on: https://code.wireshark.org/review/20637
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete get_value_uinteger64 from struct _ftype_t, make it
part of the get_value union.
Change-Id: I2b06efb7691c1bd4089994849373ab8b5ff0bcc7
Reviewed-on: https://code.wireshark.org/review/20618
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete get_value_sinteger64 from struct _ftype_t, make it
part of the get_value union.
Change-Id: I0113f70ab0aadd1aa655466e896e3acce6c8faeb
Reviewed-on: https://code.wireshark.org/review/20617
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Change-Id: I6bbaf6a7c8a3124e5eab7a7b97c6be082fe8beff
Reviewed-on: https://code.wireshark.org/review/20611
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
This is in preparation for introducing a get_value union, similar to
set_value.
Change-Id: Id0cf913a616e0314638f1531836c3136ed02631d
Reviewed-on: https://code.wireshark.org/review/20610
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Delete set_value_floating from struct _ftype_t, make it
part of the set_value union.
Change-Id: Ic00e1c70488ddc4422c34657c62af7dc07db02d9
Reviewed-on: https://code.wireshark.org/review/20556
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_sinteger64 from struct _ftype_t, make it
part of the set_value union.
Change-Id: I76668f0a6455c5d75c703cd4f440757601246bdb
Reviewed-on: https://code.wireshark.org/review/20551
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_uinteger64 from struct _ftype_t, make it
part of the set_value union.
Change-Id: I12407b7336282daa60fe6e0e742d65e205dc84fd
Reviewed-on: https://code.wireshark.org/review/20539
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_sinteger from struct _ftype_t, make it part of the
set_value union.
Change-Id: I084c4c9beba9978b538d359ebaac21391ebd7f82
Reviewed-on: https://code.wireshark.org/review/20523
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_uinteger from struct _ftype_t, make it part of the
set_value union.
Change-Id: I26de15be8ea0ede76236a8f8a4958bfd97ad9d52
Reviewed-on: https://code.wireshark.org/review/20521
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_protocol from struct _ftype_t, make it part of the
set_value union.
Change-Id: Iae55388b8a2c965944028499619282c3232c31f3
Reviewed-on: https://code.wireshark.org/review/20475
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_string from struct _ftype_t, make it part of the
set_value union.
Change-Id: Ia3a57245330ed0d158c8c3e4552ec5d80752fe0f
Reviewed-on: https://code.wireshark.org/review/20474
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Delete set_value_time from struct _ftype_t, make it part of the
set_value union.
Change-Id: Ieee3b083d52afdd608e31e8ca75b50016fec8a69
Reviewed-on: https://code.wireshark.org/review/20442
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Delete set_value_guid from struct _ftype_t, make it part of the
set_value union.
Change-Id: I3a04ff6b1ab179063ef77a3c475809df0bde5c68
Reviewed-on: https://code.wireshark.org/review/20441
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Delete set_value_bytes from struct _ftype_t, make it part of the
set_value union.
Change-Id: I3ee6a9f68b269ee083794947816e13ea6c1b9d29
Reviewed-on: https://code.wireshark.org/review/20440
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
struct _ftype_t contains a number of pointers to set_value_...()
functions. For each pre-defined ftype_t, only one of these pointers
is != NULL.
As the comment already says, we should move these functions into a
union. ftenum_t ftype will be used for selecting the correct function
pointer from the union.
Create a set_value union and move the FvalueSetByteArrayFunc pointer
into the union. Update fvalue_set_byte_array() accordingly. Check
that the fvalue_t parameter is of the correct type.
Change-Id: I6568d8f47108311289c0cd425f28ea8b38046141
Reviewed-on: https://code.wireshark.org/review/20433
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
This allows the conversion of a few straggler strcpy calls
in ftype library. Also provides a more accurate size value
instead of the many hard coded values the ftypes were using.
Change-Id: Ia6273980432e16ad3a6233816a6054d9fed5d2a4
Reviewed-on: https://code.wireshark.org/review/15344
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
As noted in https://www.wireshark.org/lists/wireshark-dev/201604/msg00103.html
a protocol field isn't really a tv_buff, so allow for the possibility
of a NULL tv_buff in a "protocol type". If the tvb is NULL, use the
string of the protocol field for comparison
Bug: 12335
Change-Id: Ie12a5f7b31c7293c61006b0f70135d100a97c4e0
Reviewed-on: https://code.wireshark.org/review/15261
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Fix comments typos and use safe equivalent of sprintf.
Change-Id: Icc9d69532dc35e8a58a78c0eacdb42214b679069
Reviewed-on: https://code.wireshark.org/review/7290
Reviewed-by: Michal Labedzki <michal.labedzki@tieto.com>
Change-Id: I57354c309ecf3a0c8f0c7cff485638027f30bb19
Reviewed-on: https://code.wireshark.org/review/5813
Reviewed-by: Michael Mann <mmann78@netscape.net>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Have dfilter_compile() take an additional gchar ** argument, pointing to
a gchar * item that, on error, gets set to point to a g_malloc()ed error
string. That removes one bit of global state from the display filter
parser, and doesn't impose a fixed limit on the error message strings.
Have fvalue_from_string() and fvalue_from_unparsed() take a gchar **
argument, pointer to a gchar * item, rather than an error-reporting
function, and set the gchar * item to point to a g_malloc()ed error
string on an error.
Allow either gchar ** argument to be null; if the argument is null, no
error message is allocated or provided.
Change-Id: Ibd36b8aaa9bf4234aa6efa1e7fb95f7037493b4c
Reviewed-on: https://code.wireshark.org/review/6608
Reviewed-by: Guy Harris <guy@alum.mit.edu>
These "bases" will put a ".", "-", or ":" respectively between hexidecimal bytes in the field in packet view and display filter. FT_BYTES with BASE_NONE will have no separator in the packet view, but continue to have the ':' as a separator in the display filter.
Converted the "string" hf_ entries that used tvb_fc_to_str as a string to use proto_tree_add_item with FT_BYTES/BASE_DOT type.
Converted applicable tvb_bytes_to_ep_str_punct() calls to use the new BASE values.
Change-Id: I2442185bb314d04a3ff2ba57883652ecd738b5f9
Reviewed-on: https://code.wireshark.org/review/6098
Reviewed-by: Michael Mann <mmann78@netscape.net>
(Using sed : sed -i '/^ \* \$Id\$/,+1 d')
Fix manually some typo (in export_object_dicom.c and crc16-plain.c)
Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8
Reviewed-on: https://code.wireshark.org/review/497
Reviewed-by: Anders Broman <a.broman58@gmail.com>
appropriate for particular FT_ types. This lets us do some more type
checking and lets us use const pointers when appropriate.
Constify a bunch of stuff, and don't cast away constness.
svn path=/trunk/; revision=54811
João Valverde