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add quickack option to ip route 

This patch adds quickack option to enable/disable TCP quick ack
mode for per-route.

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>
This commit is contained in:
Cong Wang 2013-06-15 09:39:19 +08:00 committed by Stephen Hemminger
parent 07fa9c1529
commit b37f2c895d
3 changed files with 19 additions and 0 deletions
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2
include/linux/rtnetlink.h
View File

@ -386,6 +386,8 @@ enum {
#define RTAX_RTO_MIN RTAX_RTO_MIN
RTAX_INITRWND,
#define RTAX_INITRWND RTAX_INITRWND
RTAX_QUICKACK,
#define RTAX_QUICKACK RTAX_QUICKACK
__RTAX_MAX
};

11
ip/iproute.c
View File

@ -52,6 +52,7 @@ static const char *mx_names[RTAX_MAX+1] = {
[RTAX_FEATURES] = "features",
[RTAX_RTO_MIN] = "rto_min",
[RTAX_INITRWND] = "initrwnd",
[RTAX_QUICKACK] = "quickack",
};
static void usage(void) __attribute__((noreturn));
@ -79,6 +80,7 @@ static void usage(void)
fprintf(stderr, " [ window NUMBER] [ cwnd NUMBER ] [ initcwnd NUMBER ]\n");
fprintf(stderr, " [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n");
fprintf(stderr, " [ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]\n");
fprintf(stderr, " [ quickack BOOL ]\n");
fprintf(stderr, "TYPE := [ unicast | local | broadcast | multicast | throw |\n");
fprintf(stderr, " unreachable | prohibit | blackhole | nat ]\n");
fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n");
@ -86,6 +88,7 @@ static void usage(void)
fprintf(stderr, "NHFLAGS := [ onlink | pervasive ]\n");
fprintf(stderr, "RTPROTO := [ kernel | boot | static | NUMBER ]\n");
fprintf(stderr, "TIME := NUMBER[s|ms]\n");
fprintf(stderr, "BOOL := [1|0]\n");
exit(-1);
}
@ -885,6 +888,14 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
if (get_unsigned(&win, *argv, 0))
invarg("\"initrwnd\" value is invalid\n", *argv);
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITRWND, win);
} else if (matches(*argv, "quickack") == 0) {
unsigned quickack;
NEXT_ARG();
if (get_unsigned(&quickack, *argv, 0))
invarg("\"quickack\" value is invalid\n", *argv);
if (quickack != 1 && quickack != 0)
invarg("\"quickack\" value should be 0 or 1\n", *argv);
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_QUICKACK, quickack);
} else if (matches(*argv, "rttvar") == 0) {
unsigned win;
NEXT_ARG();

6
man/man8/ip-route.8.in
View File

@ -111,6 +111,8 @@ replace " } "
.IR NUMBER " ] [ "
.B initrwnd
.IR NUMBER " ]"
.B quickack
.IR BOOL " ]"
.ti -8
.IR TYPE " := [ "
@ -400,6 +402,10 @@ the initial receive window size for connections to this destination.
Actual window size is this value multiplied by the MSS of the connection.
The default value is zero, meaning to use Slow Start value.
.TP
.BI quickack " BOOL " "(3.11+ only)"
Enable or disable quick ack for connections to this destination.
.TP
.BI advmss " NUMBER " "(2.3.15+ only)"
the MSS ('Maximal Segment Size') to advertise to these