[DCCP]: Add Support for Data 1 .. 3 fields of Reset packets

This adds fields to support the informational Data 1..3 fields of the
DCCP-Reset packets (RFC 4340, 5.6), and makes minor cosmetic changes
to documentation.
Code which fills in these fields follows in subsequent patches, it is
primarily used for reporting option-processing and feature-negotiation
errors.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

1 files changed, 6 insertions, 8 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index a0441190dc71..20e0717aa8e1 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -56,10 +56,9 @@ struct dccp_hdr_ext {
 };
 
 /**
- * struct dccp_hdr_request - Conection initiation request header
+ * struct dccp_hdr_request - Connection initiation request header
  *
  * @dccph_req_service - Service to which the client app wants to connect
- * @dccph_req_options - list of options (must be a multiple of 32 bits
  */
 struct dccp_hdr_request {
         __be32  dccph_req_service;
@@ -76,12 +75,10 @@ struct dccp_hdr_ack_bits {
         __be32  dccph_ack_nr_low;
 };
 /**
- * struct dccp_hdr_response - Conection initiation response header
+ * struct dccp_hdr_response - Connection initiation response header
  *
- * @dccph_resp_ack_nr_high - 48 bit ack number high order bits, contains GSR
- * @dccph_resp_ack_nr_low - 48 bit ack number low order bits, contains GSR
+ * @dccph_resp_ack - 48 bit Acknowledgment Number Subheader (5.3)
  * @dccph_resp_service - Echoes the Service Code on a received DCCP-Request
- * @dccph_resp_options - list of options (must be a multiple of 32 bits
  */
 struct dccp_hdr_response {
         struct dccp_hdr_ack_bits        dccph_resp_ack;
@@ -91,8 +88,9 @@ struct dccp_hdr_response {
 /**
  * struct dccp_hdr_reset - Unconditionally shut down a connection
  *
- * @dccph_reset_service - Echoes the Service Code on a received DCCP-Request
- * @dccph_reset_options - list of options (must be a multiple of 32 bits
+ * @dccph_reset_ack - 48 bit Acknowledgment Number Subheader (5.6)
+ * @dccph_reset_code - one of %dccp_reset_codes
+ * @dccph_reset_data - the Data 1 ... Data 3 fields from 5.6
  */
 struct dccp_hdr_reset {
         struct dccp_hdr_ack_bits        dccph_reset_ack;