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author | Anders Broman <anders.broman@ericsson.com> | 2005-06-03 06:35:44 +0000 |
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committer | Anders Broman <anders.broman@ericsson.com> | 2005-06-03 06:35:44 +0000 |
commit | f01b2b6197392f785fea4352b244b6be0bb5095d (patch) | |
tree | 95985a60201e35ec17276d4353e8524010f493b0 /epan/packet.h | |
parent | 52e6e313ed3128d578d1779d3a4ddbe0ec228b42 (diff) | |
download | wireshark-f01b2b6197392f785fea4352b244b6be0bb5095d.tar.gz |
From Mike Duigou:
A few doxygen updates and an improved section on
writing dissectors that don't use tcp_dissect_pdus().
svn path=/trunk/; revision=14537
Diffstat (limited to 'epan/packet.h')
-rw-r--r-- | epan/packet.h | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/epan/packet.h b/epan/packet.h index eed4554b53..5dbce73c70 100644 --- a/epan/packet.h +++ b/epan/packet.h @@ -117,17 +117,27 @@ typedef void (*dissector_t)(tvbuff_t *, packet_info *, proto_tree *); /* * Dissector that returns: * - * the amount of data in the protocol's PDU, if it was able to + * The amount of data in the protocol's PDU, if it was able to * dissect all the data; * * 0, if the tvbuff doesn't contain a PDU for that protocol; * - * the negative of the amount of additional data needed, if + * The negative of the amount of additional data needed, if * we need more data (e.g., from subsequent TCP segments) to * dissect the entire PDU. */ typedef int (*new_dissector_t)(tvbuff_t *, packet_info *, proto_tree *); +/** Type of a heuristic dissector, used in heur_dissector_add(). + * + * @param tvb the tv_buff with the (remaining) packet data + * @param pinfo the packet info of this packet (additional info) + * @param tree the protocol tree to be build or NULL + * @return TRUE if the packet was recognized by the sub-dissector (stop dissection here) + */ +typedef gboolean (*heur_dissector_t)(tvbuff_t *tvb, packet_info *pinfo, + proto_tree *tree); + typedef void (*DATFunc) (gchar *table_name, ftenum_t selector_type, gpointer key, gpointer value, gpointer user_data); typedef void (*DATFunc_handle) (gchar *table_name, gpointer value, @@ -257,16 +267,6 @@ extern void register_heur_dissector_list(const char *name, extern gboolean dissector_try_heuristic(heur_dissector_list_t sub_dissectors, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); -/** Type of a heuristic dissector, used in heur_dissector_add(). - * - * @param tvb the tv_buff with the (remaining) packet data - * @param pinfo the packet info of this packet (additional info) - * @param tree the protocol tree to be build or NULL - * @return TRUE if the packet was recognized by the sub-dissector (stop dissection here) - */ -typedef gboolean (*heur_dissector_t)(tvbuff_t *tvb, packet_info *pinfo, - proto_tree *tree); - /** Add a sub-dissector to a heuristic dissector list. * Call this in the proto_handoff function of the sub-dissector. * @@ -300,11 +300,30 @@ extern dissector_handle_t new_create_dissector_handle(new_dissector_t dissector, /* Call a dissector through a handle and if no dissector was found * pass if over to the "data" dissector instead. + * + * @param handle The dissector to call. + * @param tvb The buffer to dissect. + * @param pinfo Packet Info. + * @param tree The protocol tree. + * @return If the protocol for that handle isn't enabled call the data + * dissector. Otherwise, if the handle refers to a new-style + * dissector, call the dissector and return its return value, otherwise call + * it and return the length of the tvbuff pointed to by the argument. */ extern int call_dissector(dissector_handle_t handle, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); + /* Call a dissector through a handle but if no dissector was found * just return 0 and do not call the "data" dissector instead. + * + * @param handle The dissector to call. + * @param tvb The buffer to dissect. + * @param pinfo Packet Info. + * @param tree The protocol tree. + * @return If the protocol for that handle isn't enabled, return 0 without + * calling the dissector. Otherwise, if the handle refers to a new-style + * dissector, call the dissector and return its return value, otherwise call + * it and return the length of the tvbuff pointed to by the argument. */ extern int call_dissector_only(dissector_handle_t handle, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); |