Commit Graph

4 Commits

Author SHA1 Message Date
Huang Qiangxiong 4fe4405bef Protobuf: Enhancements about error message during loading .proto files
When printing an error message about (1) imported file does not exist
or (2) type is defined duplicated, the loaded .proto filename and line
number are included to ease fixing the errors of .proto file.

Change-Id: I2efc7a200dd86016450bba2bc960f53773bfc2e8
Reviewed-on: https://code.wireshark.org/review/35032
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2019-11-10 10:19:16 +00:00
Huang Qiangxiong 26354037a3 Protobuf: Support leading dot for the message/enum type of field
The message/enum type of field is allowed to start with '.' (for example,
.foo.bar.Baz), that means to search the message/enum to start from the
outermost scope instead. Please refer to:
https://developers.google.com/protocol-buffers/docs/proto3#packages-and-name-resolution

Please find example capture file from Bug: 16118

Ping-Bug: 16118
Change-Id: I78702d0b2316b4071f04aba9fc7d185e382e4cbf
Reviewed-on: https://code.wireshark.org/review/34752
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2019-10-14 06:47:44 +00:00
Huang Qiangxiong 62101950f3 Protobuf: Add show_details preferences. Fix two bugs.
1. Add show_details preferences. Disable it will hidden names of
message/field/enum, field number, and other details.

2. Have only one popup message with all the errors listed,
that are found during parsing .proto files. (Buffer errors and print once)
Loading .proto files and checking message types of UDP port will
be done only when protobuf dissector has been called.

3. Support parsing .proto files in legacy MAC file format
(that newline is '\r') or mixed newline (\r + \n) file format.

Change-Id: I97bcde000957e4cd1cce98a7f61120d03027423e
Reviewed-on: https://code.wireshark.org/review/34736
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2019-10-14 06:47:30 +00:00
Huang Qiangxiong 5750c4981c protobuf: add support for Protocol Buffers Language (*.proto) files
1. A C-style Protocol Buffers Language (PBL) parser for *.proto file is added.
It contains protobuf_lang_scanner.l (lex scanner), epan/protobuf_lang.y (grammar
parser), and protobuf_lang_tree.h/c (grammar tree implementation).

2. The protobuf-helper.h/cpp is an interface wrapper layer. If one day C++ is allowed,
we can create a protobuf-helper.cpp file, which using offical protobuf C++
library, to replace protobuf-helper.c. That keeps packet-protobuf.c unchanged.

3. User can specify protobuf search paths, and the UDP ports to protobuf message type
maps at the Protobuf protocol preferences.

4. Other dissectors can pass the message type to Protobuf dissector by data parameter
or pinfo->private_table["pb_msg_type"] (pinfo.private["pb_msg_type"] in lua).

Some Sample of GRPC with Protobuf captures can be found in Bug: 13932.

Bug: 13932
Change-Id: Ife16c2f7b381296f8db4740dabe5f8362a456f48
Reviewed-on: https://code.wireshark.org/review/22892
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2019-10-07 10:35:52 +00:00