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commit b37f2c895d7876416a45e608754a39fff47ddf29
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Author: Cong Wang <amwang@redhat.com>
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Date: Sat Jun 15 09:39:19 2013 +0800
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add quickack option to ip route
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This patch adds quickack option to enable/disable TCP quick ack
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mode for per-route.
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Cc: Stephen Hemminger <stephen@networkplumber.org>
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Cc: "David S. Miller" <davem@davemloft.net>
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Cc: Thomas Graf <tgraf@suug.ch>
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Signed-off-by: Cong Wang <amwang@redhat.com>
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diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
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index 93370bd..248fdd3 100644
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--- a/include/linux/rtnetlink.h
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+++ b/include/linux/rtnetlink.h
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@@ -386,6 +386,8 @@ enum {
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#define RTAX_RTO_MIN RTAX_RTO_MIN
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RTAX_INITRWND,
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#define RTAX_INITRWND RTAX_INITRWND
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+ RTAX_QUICKACK,
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+#define RTAX_QUICKACK RTAX_QUICKACK
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__RTAX_MAX
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};
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diff --git a/ip/iproute.c b/ip/iproute.c
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index adef774..46710b2 100644
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--- a/ip/iproute.c
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+++ b/ip/iproute.c
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@@ -52,6 +52,7 @@ static const char *mx_names[RTAX_MAX+1] = {
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[RTAX_FEATURES] = "features",
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[RTAX_RTO_MIN] = "rto_min",
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[RTAX_INITRWND] = "initrwnd",
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+ [RTAX_QUICKACK] = "quickack",
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};
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static void usage(void) __attribute__((noreturn));
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@@ -79,6 +80,7 @@ static void usage(void)
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fprintf(stderr, " [ window NUMBER] [ cwnd NUMBER ] [ initcwnd NUMBER ]\n");
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fprintf(stderr, " [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n");
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fprintf(stderr, " [ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]\n");
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+ fprintf(stderr, " [ quickack BOOL ]\n");
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fprintf(stderr, "TYPE := [ unicast | local | broadcast | multicast | throw |\n");
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fprintf(stderr, " unreachable | prohibit | blackhole | nat ]\n");
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fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n");
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@@ -86,6 +88,7 @@ static void usage(void)
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fprintf(stderr, "NHFLAGS := [ onlink | pervasive ]\n");
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fprintf(stderr, "RTPROTO := [ kernel | boot | static | NUMBER ]\n");
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fprintf(stderr, "TIME := NUMBER[s|ms]\n");
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+ fprintf(stderr, "BOOL := [1|0]\n");
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exit(-1);
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}
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@@ -885,6 +888,14 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
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if (get_unsigned(&win, *argv, 0))
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invarg("\"initrwnd\" value is invalid\n", *argv);
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rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITRWND, win);
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+ } else if (matches(*argv, "quickack") == 0) {
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+ unsigned quickack;
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+ NEXT_ARG();
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+ if (get_unsigned(&quickack, *argv, 0))
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+ invarg("\"quickack\" value is invalid\n", *argv);
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+ if (quickack != 1 && quickack != 0)
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+ invarg("\"quickack\" value should be 0 or 1\n", *argv);
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+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_QUICKACK, quickack);
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} else if (matches(*argv, "rttvar") == 0) {
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unsigned win;
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NEXT_ARG();
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diff --git a/man/man8/ip-route.8.in b/man/man8/ip-route.8.in
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index 2c35a97..01997fa 100644
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--- a/man/man8/ip-route.8.in
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+++ b/man/man8/ip-route.8.in
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@@ -111,6 +111,8 @@ replace " } "
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.IR NUMBER " ] [ "
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.B initrwnd
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.IR NUMBER " ]"
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+.B quickack
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+.IR BOOL " ]"
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.ti -8
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.IR TYPE " := [ "
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@@ -401,6 +403,10 @@ Actual window size is this value multiplied by the MSS of the connection.
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The default value is zero, meaning to use Slow Start value.
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.TP
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+.BI quickack " BOOL " "(3.11+ only)"
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+Enable or disable quick ack for connections to this destination.
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+
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+.TP
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.BI advmss " NUMBER " "(2.3.15+ only)"
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the MSS ('Maximal Segment Size') to advertise to these
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destinations when establishing TCP connections. If it is not given,
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