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-rw-r--r--Documentation/networking/dccp.txt1
-rw-r--r--net/dccp/sysctl.c4
2 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index b395ca6a49f29..811872b45beee 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -167,6 +167,7 @@ rx_ccid = 2
seq_window = 100
The initial sequence window (sec. 7.5.2) of the sender. This influences
the local ackno validity and the remote seqno validity windows (7.5.1).
+ Values in the range Wmin = 32 (RFC 4340, 7.5.2) up to 2^32-1 can be set.
tx_qlen = 5
The size of the transmit buffer in packets. A value of 0 corresponds
diff --git a/net/dccp/sysctl.c b/net/dccp/sysctl.c
index 563943822e582..42348824ee318 100644
--- a/net/dccp/sysctl.c
+++ b/net/dccp/sysctl.c
@@ -21,7 +21,8 @@
/* Boundary values */
static int zero = 0,
u8_max = 0xFF;
-static unsigned long seqw_min = 32;
+static unsigned long seqw_min = DCCPF_SEQ_WMIN,
+ seqw_max = 0xFFFFFFFF; /* maximum on 32 bit */
static struct ctl_table dccp_default_table[] = {
{
@@ -31,6 +32,7 @@ static struct ctl_table dccp_default_table[] = {
.mode = 0644,
.proc_handler = proc_doulongvec_minmax,
.extra1 = &seqw_min, /* RFC 4340, 7.5.2 */
+ .extra2 = &seqw_max,
},
{
.procname = "rx_ccid",