From: Rick Jones <[EMAIL PROTECTED]>
Date: Fri, 31 Aug 2007 11:11:37 -0700
> At the risk of showing my ignorance (what me worry about that?-) I
> presume this is then an interface expecting to take-in jiffies? That
> means the user has to know the value of HZ which can be (IIRC) one of
> three different values?
The iproute2 changes might look something like this:
--- ./include/linux/rtnetlink.h.orig 2007-08-31 11:55:30.000000000 -0700
+++ ./include/linux/rtnetlink.h 2007-08-31 11:52:22.000000000 -0700
@@ -351,6 +351,8 @@ enum
#define RTAX_INITCWND RTAX_INITCWND
RTAX_FEATURES,
#define RTAX_FEATURES RTAX_FEATURES
+ RTAX_RTO_MIN,
+#define RTAX_RTO_MIN RTAX_RTO_MIN
__RTAX_MAX
};
--- ./ip/iproute.c.orig 2007-08-31 11:55:30.000000000 -0700
+++ ./ip/iproute.c 2007-08-31 11:53:29.000000000 -0700
@@ -51,6 +51,7 @@ static const char *mx_names[RTAX_MAX+1]
[RTAX_HOPLIMIT] = "hoplimit",
[RTAX_INITCWND] = "initcwnd",
[RTAX_FEATURES] = "features",
+ [RTAX_RTO_MIN] = "rto_min",
};
static void usage(void) __attribute__((noreturn));
@@ -74,6 +75,7 @@ static void usage(void)
fprintf(stderr, " [ rtt NUMBER ] [ rttvar NUMBER ]\n");
fprintf(stderr, " [ window NUMBER] [ cwnd NUMBER ] [ initcwnd
NUMBER ]\n");
fprintf(stderr, " [ ssthresh NUMBER ] [ realms REALM ]\n");
+ fprintf(stderr, " [ rto_min NUMBER ]\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");
@@ -520,7 +522,8 @@ int print_route(const struct sockaddr_nl
if (mxlock & (1<<i))
fprintf(fp, " lock");
- if (i != RTAX_RTT && i != RTAX_RTTVAR)
+ if (i != RTAX_RTT && i != RTAX_RTTVAR &&
+ i != RTAX_RTO_MIN)
fprintf(fp, " %u",
*(unsigned*)RTA_DATA(mxrta[i]));
else {
unsigned val = *(unsigned*)RTA_DATA(mxrta[i]);
@@ -528,7 +531,7 @@ int print_route(const struct sockaddr_nl
val *= 1000;
if (i == RTAX_RTT)
val /= 8;
- else
+ else if (i == RTAX_RTTVAR)
val /= 4;
if (val >= hz)
fprintf(fp, " %ums", val/hz);
@@ -803,6 +806,15 @@ int iproute_modify(int cmd, unsigned fla
if (get_unsigned(&rtt, *argv, 0))
invarg("\"rtt\" value is invalid\n", *argv);
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTT, rtt);
+ } else if (strcmp(*argv, "rto_min") == 0) {
+ unsigned rto_min;
+ NEXT_ARG();
+ mxlock |= (1<<RTAX_RTO_MIN);
+ if (get_unsigned(&rto_min, *argv, 0))
+ invarg("\"rto_min\" value is invalid\n",
+ *argv);
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTO_MIN,
+ rto_min);
} else if (matches(*argv, "window") == 0) {
unsigned win;
NEXT_ARG();
-
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