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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2010-11-14 17:26:13 +0100
committerGerrit Renker <gerrit@erg.abdn.ac.uk>2010-11-15 07:12:01 +0100
commit7e87fe84303cc54ecf3c7b688cb08ca24322a41d (patch)
treedf764cbfefe19e628e92a8353d331d91c33212b6 /net/dccp/ccids/ccid2.h
parentdccp ccid-2: Remove old infrastructure (diff)
downloadlinux-dev-7e87fe84303cc54ecf3c7b688cb08ca24322a41d.tar.xz
linux-dev-7e87fe84303cc54ecf3c7b688cb08ca24322a41d.zip
dccp ccid-2: Separate option parsing from CCID processing
This patch replaces an almost identical replication of code: large parts of dccp_parse_options() re-appeared as ccid2_ackvector() in ccid2.c. Apart from the duplication, this caused two more problems: 1. CCIDs should not need to be concerned with parsing header options; 2. one can not assume that Ack Vectors appear as a contiguous area within an skb, it is legal to insert other options and/or padding in between. The current code would throw an error and stop reading in such a case. Since Ack Vectors provide CCID-specific information, they are now processed by the CCID directly, separating this functionality from the main DCCP code. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Diffstat (limited to 'net/dccp/ccids/ccid2.h')
-rw-r--r--net/dccp/ccids/ccid2.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/dccp/ccids/ccid2.h b/net/dccp/ccids/ccid2.h
index 25cb6b216eda..e9985dafc2c7 100644
--- a/net/dccp/ccids/ccid2.h
+++ b/net/dccp/ccids/ccid2.h
@@ -55,6 +55,7 @@ struct ccid2_seq {
* @tx_rtt_seq: to decay RTTVAR at most once per flight
* @tx_rpseq: last consecutive seqno
* @tx_rpdupack: dupacks since rpseq
+ * @tx_av_chunks: list of Ack Vectors received on current skb
*/
struct ccid2_hc_tx_sock {
u32 tx_cwnd;
@@ -79,6 +80,7 @@ struct ccid2_hc_tx_sock {
int tx_rpdupack;
u32 tx_last_cong;
u64 tx_high_ack;
+ struct list_head tx_av_chunks;
};
static inline bool ccid2_cwnd_network_limited(struct ccid2_hc_tx_sock *hc)