On Nov 25 2007 18:11, Patrick McHardy wrote:
>Date: Sun, 25 Nov 2007 18:11:55 +0100
>From: Patrick McHardy <kaber@xxxxxxxxx>
>To: Netfilter Development Mailinglist <netfilter-devel@xxxxxxxxxxxxxxx>
>Subject: [RFC IPTABLES 3/4]: add xt_RATEEST target
>
>
>
>[IPTABLES]: add xt_RATEEST target
>
>Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
>Index: include/linux/netfilter/xt_RATEEST.h
>===================================================================
>--- include/linux/netfilter/xt_RATEEST.h (Revision 0)
>+++ include/linux/netfilter/xt_RATEEST.h (Revision 0)
>@@ -0,0 +1,11 @@
>+#ifndef _XT_RATEEST_TARGET_H
>+#define _XT_RATEEST_TARGET_H
>+
>+struct xt_rateest_target_info {
>+ char name[IFNAMSIZ];
>+ signed char interval;
>+ unsigned char ewma_log;
int8/uint8
>+ struct xt_rateest *est __attribute__((aligned(8)));
>+};
>+
>+#endif /* _XT_RATEEST_TARGET_H */
>Index: extensions/libxt_RATEEST.c
>===================================================================
>--- extensions/libxt_RATEEST.c (Revision 0)
>+++ extensions/libxt_RATEEST.c (Revision 0)
>@@ -0,0 +1,240 @@
>+static unsigned int interval;
>+static unsigned int ewma_log;
>+static void
>+RATEEST_final_check(unsigned int flags)
>+{
>+ struct xt_rateest_target_info *info = RATEEST_info;
>+
>+ if (!(flags & (1 << RATEEST_OPT_NAME)))
>+ exit_error(PARAMETER_PROBLEM, "RATEEST: no name specified");
>+ if (!(flags & (1 << RATEEST_OPT_INTERVAL)))
>+ exit_error(PARAMETER_PROBLEM, "RATEEST: no interval specified");
>+ if (!(flags & (1 << RATEEST_OPT_EWMALOG)))
>+ exit_error(PARAMETER_PROBLEM, "RATEEST: no ewmalog specified");
>+
>+ for (info->interval = 0; info->interval <= 5; info->interval++) {
>+ if (interval <= (1 << info->interval) * (TIME_UNITS_PER_SEC / 4))
>+ break;
>+ }
-{}
>+static void
>+__RATEEST_print(const struct xt_entry_target *target, const char *prefix)
>+{
>+ struct xt_rateest_target_info *info = (void *)target->data;
>+ unsigned int interval;
>+ unsigned int ewma_log;
Ouchie - that throws a warning with -Wshadow (which is what I'm trying to slip
in later).
>+
>+ interval = (TIME_UNITS_PER_SEC << (info->interval + 2)) / 4;
>+ ewma_log = interval * (1 << (info->ewma_log));
ewma_log = interval << info->ewma_log;
>+ printf("%sname %s ", prefix, info->name);
>+ printf("%sinterval ", prefix);
>+ RATEEST_print_time(interval);
>+ printf("%sewmalog ", prefix);
>+ RATEEST_print_time(ewma_log);
>+}
>+
>-LDLIBS = -ldl
>+LDLIBS = -ldl -lm
I have not seen the function that requires -lm, which was it?
-
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