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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-11-24 03:02:31 +0300
committerDavid S. Miller <davem@davemloft.net>2008-11-24 03:02:31 +0300
commitb20a9c24d5c5d466d7e4a25c6f1bedbd2d16ad4f (patch)
tree17789215657f693caf36e22d3e724cc1b1e07ba6 /include/linux/dccp.h
parent2c62ad7b56fa8e2658253c0256ef4c4de228a0b9 (diff)
downloadlinux-b20a9c24d5c5d466d7e4a25c6f1bedbd2d16ad4f.tar.xz
dccp: Set per-connection CCIDs via socket options
With this patch, TX/RX CCIDs can now be changed on a per-connection basis, which overrides the defaults set by the global sysctl variables for TX/RX CCIDs. To make full use of this facility, the remaining patches of this patch set are needed, which track dependencies and activate negotiated feature values. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/dccp.h')
-rw-r--r--include/linux/dccp.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index eda389ce04f4..6a72ff52a8a4 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -168,6 +168,8 @@ enum {
DCCPO_MIN_CCID_SPECIFIC = 128,
DCCPO_MAX_CCID_SPECIFIC = 255,
};
+/* maximum size of a single TLV-encoded DCCP option (sans type/len bytes) */
+#define DCCP_SINGLE_OPT_MAXLEN 253
/* DCCP CCIDS */
enum {
@@ -203,6 +205,9 @@ enum dccp_feature_numbers {
#define DCCP_SOCKOPT_SEND_CSCOV 10
#define DCCP_SOCKOPT_RECV_CSCOV 11
#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12
+#define DCCP_SOCKOPT_CCID 13
+#define DCCP_SOCKOPT_TX_CCID 14
+#define DCCP_SOCKOPT_RX_CCID 15
#define DCCP_SOCKOPT_CCID_RX_INFO 128
#define DCCP_SOCKOPT_CCID_TX_INFO 192