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| author | Michael Mann <mmann78@netscape.net> | 2015-12-13 16:54:16 -0500 |
|---|---|---|
| committer | Michael Mann <mmann78@netscape.net> | 2015-12-14 12:17:49 +0000 |
| commit | 0960ac4dfdbfba5a81c56a49cfc6201ecd8f48e3 (patch) | |
| tree | 3d88cd321da2fade206b9ccddff22b70ecdfae28 /epan/capture_dissectors.h | |
| parent | 9319357f5e27c10f2d29e78fcdf9d323c2af36b0 (diff) | |
| download | wireshark-0960ac4dfdbfba5a81c56a49cfc6201ecd8f48e3.tar.gz | |
Create capture dissector tables.
They are modeled after dissection dissector tables, but for the moment, don't have/need the flexibility. They are intended to be much simpler/faster than full dissection.
The two most used/needed are "wtap_encap" and "ethertype", so they were the basis of starting to use and test capture dissector table API. Others may be added in the future.
The "capture dissector" function signature needed a bit of tweeking to handling "claiming" of a packet.
The current application of this is capture functions returning TRUE if they affected a "type" of packet count. Returning FALSE ends up considering the packet an "other" type.
Change-Id: I81d06a6ccb2c03665f087258a46b9d78d513d6cd
Reviewed-on: https://code.wireshark.org/review/12607
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Diffstat (limited to 'epan/capture_dissectors.h')
| -rw-r--r-- | epan/capture_dissectors.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/epan/capture_dissectors.h b/epan/capture_dissectors.h index f5313fabf9..7d8ab37855 100644 --- a/epan/capture_dissectors.h +++ b/epan/capture_dissectors.h @@ -33,14 +33,18 @@ extern "C" { /** @file */ -/** callback function definition: is a filter available for this packet? */ -typedef void (*capture_dissector_t)(const guchar *pd, int offset, int len, packet_counts *ld, const union wtap_pseudo_header *pseudo_header); +/** callback function definition for capture dissectors */ +typedef gboolean (*capture_dissector_t)(const guchar *pd, int offset, int len, packet_counts *ld, const union wtap_pseudo_header *pseudo_header); + +/* a protocol uses the function to register a capture sub-dissector table + */ +WS_DLL_PUBLIC void register_capture_dissector_table(const char *name, const char *ui_name); /** Register a new capture dissector. */ -WS_DLL_PUBLIC void register_capture_dissector(gint linktype, capture_dissector_t dissector, const int proto); +WS_DLL_PUBLIC void register_capture_dissector(const char* name, const guint32 pattern, capture_dissector_t dissector, const int proto); -WS_DLL_PUBLIC void call_capture_dissector(gint linktype, const guchar *pd, int offset, int len, packet_counts *ld, const union wtap_pseudo_header *pseudo_header); +WS_DLL_PUBLIC gboolean try_capture_dissector(const char* name, const guint32 pattern, const guchar *pd, int offset, int len, packet_counts *ld, const union wtap_pseudo_header *pseudo_header); extern void capture_dissector_init(void); extern void capture_dissector_cleanup(void); |