netfilter: remove ipt_limit (CONFIG_IP_NF_MATCH_TIME) superseeded by xt_limit (CONFIG_NETFILTER_XT_MATCH_TIME) in 2.6.24 and newer, remove ipt_limit in 2.4 since we don't have userland support for it in iptables v1.3.8
SVN-Revision: 15843
This commit is contained in:
Nicolas Thill
parent
3b8ab3d52a
commit
cc343c1504
2 changed files with 0 additions and 479 deletions
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@ -1,242 +0,0 @@
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Index: linux-2.4.35.4/net/ipv4/netfilter/Config.in
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/Config.in
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+++ linux-2.4.35.4/net/ipv4/netfilter/Config.in
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@@ -47,6 +47,7 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ];
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dep_tristate ' netfilter MARK match support' CONFIG_IP_NF_MATCH_MARK $CONFIG_IP_NF_IPTABLES
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dep_tristate ' Multiple port match support' CONFIG_IP_NF_MATCH_MULTIPORT $CONFIG_IP_NF_IPTABLES
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dep_tristate ' TOS match support' CONFIG_IP_NF_MATCH_TOS $CONFIG_IP_NF_IPTABLES
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+ dep_tristate ' TIME match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_TIME $CONFIG_IP_NF_IPTABLES
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dep_tristate ' condition match support' CONFIG_IP_NF_MATCH_CONDITION $CONFIG_IP_NF_IPTABLES
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dep_tristate ' recent match support' CONFIG_IP_NF_MATCH_RECENT $CONFIG_IP_NF_IPTABLES
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dep_tristate ' ECN match support' CONFIG_IP_NF_MATCH_ECN $CONFIG_IP_NF_IPTABLES
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Index: linux-2.4.35.4/net/ipv4/netfilter/ipt_time.c
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===================================================================
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--- /dev/null
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+++ linux-2.4.35.4/net/ipv4/netfilter/ipt_time.c
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@@ -0,0 +1,193 @@
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+/*
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+ This is a module which is used for time matching
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+ It is using some modified code from dietlibc (localtime() function)
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+ that you can find at http://www.fefe.de/dietlibc/
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+ This file is distributed under the terms of the GNU General Public
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+ License (GPL). Copies of the GPL can be obtained from: ftp://prep.ai.mit.edu/pub/gnu/GPL
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+ 2001-05-04 Fabrice MARIE <fabrice@netfilter.org> : initial development.
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+ 2001-21-05 Fabrice MARIE <fabrice@netfilter.org> : bug fix in the match code,
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+ thanks to "Zeng Yu" <zengy@capitel.com.cn> for bug report.
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+ 2001-26-09 Fabrice MARIE <fabrice@netfilter.org> : force the match to be in LOCAL_IN or PRE_ROUTING only.
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+ 2001-30-11 Fabrice : added the possibility to use the match in FORWARD/OUTPUT with a little hack,
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+ added Nguyen Dang Phuoc Dong <dongnd@tlnet.com.vn> patch to support timezones.
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+ 2004-05-02 Fabrice : added support for date matching, from an idea of Fabien COELHO.
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+*/
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+
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+#include <linux/module.h>
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+#include <linux/skbuff.h>
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+#include <linux/netfilter_ipv4/ip_tables.h>
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+#include <linux/netfilter_ipv4/ipt_time.h>
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+#include <linux/time.h>
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+
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+MODULE_AUTHOR("Fabrice MARIE <fabrice@netfilter.org>");
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+MODULE_DESCRIPTION("Match arrival timestamp/date");
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+MODULE_LICENSE("GPL");
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+
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+struct tm
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+{
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+ int tm_sec; /* Seconds. [0-60] (1 leap second) */
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+ int tm_min; /* Minutes. [0-59] */
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+ int tm_hour; /* Hours. [0-23] */
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+ int tm_mday; /* Day. [1-31] */
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+ int tm_mon; /* Month. [0-11] */
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+ int tm_year; /* Year - 1900. */
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+ int tm_wday; /* Day of week. [0-6] */
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+ int tm_yday; /* Days in year.[0-365] */
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+ int tm_isdst; /* DST. [-1/0/1]*/
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+
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+ long int tm_gmtoff; /* we don't care, we count from GMT */
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+ const char *tm_zone; /* we don't care, we count from GMT */
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+};
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+
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+void
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+localtime(const time_t *timepr, struct tm *r);
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+
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+static int
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+match(const struct sk_buff *skb,
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+ const struct net_device *in,
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+ const struct net_device *out,
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+ const void *matchinfo,
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+ int offset,
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+ const void *hdr,
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+ u_int16_t datalen,
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+ int *hotdrop)
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+{
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+ const struct ipt_time_info *info = matchinfo; /* match info for rule */
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+ struct tm currenttime; /* time human readable */
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+ u_int8_t days_of_week[7] = {64, 32, 16, 8, 4, 2, 1};
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+ u_int16_t packet_time;
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+ struct timeval kerneltimeval;
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+ time_t packet_local_time;
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+
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+ /* if kerneltime=1, we don't read the skb->timestamp but kernel time instead */
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+ if (info->kerneltime)
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+ {
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+ do_gettimeofday(&kerneltimeval);
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+ packet_local_time = kerneltimeval.tv_sec;
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+ }
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+ else
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+ packet_local_time = skb->stamp.tv_sec;
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+
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+ /* First we make sure we are in the date start-stop boundaries */
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+ if ((packet_local_time < info->date_start) || (packet_local_time > info->date_stop))
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+ return 0; /* We are outside the date boundaries */
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+
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+ /* Transform the timestamp of the packet, in a human readable form */
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+ localtime(&packet_local_time, ¤ttime);
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+
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+ /* check if we match this timestamp, we start by the days... */
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+ if ((days_of_week[currenttime.tm_wday] & info->days_match) != days_of_week[currenttime.tm_wday])
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+ return 0; /* the day doesn't match */
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+
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+ /* ... check the time now */
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+ packet_time = (currenttime.tm_hour * 60) + currenttime.tm_min;
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+ if ((packet_time < info->time_start) || (packet_time > info->time_stop))
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+ return 0;
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+
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+ /* here we match ! */
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+ return 1;
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+}
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+
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+static int
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+checkentry(const char *tablename,
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+ const struct ipt_ip *ip,
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+ void *matchinfo,
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+ unsigned int matchsize,
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+ unsigned int hook_mask)
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+{
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+ struct ipt_time_info *info = matchinfo; /* match info for rule */
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+
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+ /* First, check that we are in the correct hooks */
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+ if (hook_mask
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+ & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN) | (1 << NF_IP_FORWARD) | (1 << NF_IP_LOCAL_OUT)))
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+ {
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+ printk("ipt_time: error, only valid for PRE_ROUTING, LOCAL_IN, FORWARD and OUTPUT)\n");
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+ return 0;
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+ }
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+ /* we use the kerneltime if we are in forward or output */
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+ info->kerneltime = 1;
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+ if (hook_mask & ~((1 << NF_IP_FORWARD) | (1 << NF_IP_LOCAL_OUT)))
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+ /* we use the skb time */
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+ info->kerneltime = 0;
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+
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+ /* Check the size */
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+ if (matchsize != IPT_ALIGN(sizeof(struct ipt_time_info)))
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+ return 0;
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+ /* Now check the coherence of the data ... */
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+ if ((info->time_start > 1439) || /* 23*60+59 = 1439*/
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+ (info->time_stop > 1439))
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+ {
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+ printk(KERN_WARNING "ipt_time: invalid argument\n");
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+ return 0;
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+ }
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+
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+ return 1;
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+}
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+
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+static struct ipt_match time_match = {
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+ .name = "time",
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+ .match = match,
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+ .checkentry = checkentry,
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+ .me = THIS_MODULE,
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+};
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+
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+static int __init init(void)
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+{
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+ printk("ipt_time loading\n");
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+ return ipt_register_match(&time_match);
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+}
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+
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+static void __exit fini(void)
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+{
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+ ipt_unregister_match(&time_match);
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+ printk("ipt_time unloaded\n");
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+}
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+
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+module_init(init);
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+module_exit(fini);
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+
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+
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+/* The part below is borowed and modified from dietlibc */
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+
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+/* seconds per day */
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+#define SPD 24*60*60
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+
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+void
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+localtime(const time_t *timepr, struct tm *r) {
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+ time_t i;
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+ time_t timep;
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+ extern struct timezone sys_tz;
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+ const unsigned int __spm[12] =
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+ { 0,
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+ (31),
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+ (31+28),
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+ (31+28+31),
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+ (31+28+31+30),
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+ (31+28+31+30+31),
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+ (31+28+31+30+31+30),
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+ (31+28+31+30+31+30+31),
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+ (31+28+31+30+31+30+31+31),
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+ (31+28+31+30+31+30+31+31+30),
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+ (31+28+31+30+31+30+31+31+30+31),
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+ (31+28+31+30+31+30+31+31+30+31+30),
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+ };
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+ register time_t work;
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+
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+ timep = (*timepr) - (sys_tz.tz_minuteswest * 60);
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+ work=timep%(SPD);
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+ r->tm_sec=work%60; work/=60;
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+ r->tm_min=work%60; r->tm_hour=work/60;
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+ work=timep/(SPD);
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+ r->tm_wday=(4+work)%7;
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+ for (i=1970; ; ++i) {
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+ register time_t k= (!(i%4) && ((i%100) || !(i%400)))?366:365;
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+ if (work>k)
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+ work-=k;
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+ else
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+ break;
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+ }
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+ r->tm_year=i-1900;
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+ for (i=11; i && __spm[i]>work; --i) ;
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+ r->tm_mon=i;
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+ r->tm_mday=work-__spm[i]+1;
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+}
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Index: linux-2.4.35.4/net/ipv4/netfilter/Makefile
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/Makefile
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+++ linux-2.4.35.4/net/ipv4/netfilter/Makefile
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@@ -111,6 +111,7 @@ obj-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt
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obj-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport.o
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obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o
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obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
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+obj-$(CONFIG_IP_NF_MATCH_TIME) += ipt_time.o
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obj-$(CONFIG_IP_NF_MATCH_CONDITION) += ipt_condition.o
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obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o
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Index: linux-2.4.35.4/include/linux/netfilter_ipv4/ipt_time.h
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===================================================================
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--- /dev/null
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+++ linux-2.4.35.4/include/linux/netfilter_ipv4/ipt_time.h
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@@ -0,0 +1,15 @@
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+#ifndef __ipt_time_h_included__
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+#define __ipt_time_h_included__
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+
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+
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+struct ipt_time_info {
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+ u_int8_t days_match; /* 1 bit per day. -SMTWTFS */
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+ u_int16_t time_start; /* 0 < time_start < 23*60+59 = 1439 */
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+ u_int16_t time_stop; /* 0:0 < time_stat < 23:59 */
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+ u_int8_t kerneltime; /* ignore skb time (and use kerneltime) or not. */
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+ time_t date_start;
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+ time_t date_stop;
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+};
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+
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+
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+#endif /* __ipt_time_h_included__ */
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@ -1,237 +0,0 @@
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--- /dev/null
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+++ b/include/linux/netfilter_ipv4/ipt_time.h
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@@ -0,0 +1,18 @@
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+#ifndef __ipt_time_h_included__
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+#define __ipt_time_h_included__
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+
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+
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+struct ipt_time_info {
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+ u_int8_t days_match; /* 1 bit per day. -SMTWTFS */
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+ u_int16_t time_start; /* 0 < time_start < 23*60+59 = 1439 */
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+ u_int16_t time_stop; /* 0:0 < time_stat < 23:59 */
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+
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+ /* FIXME: Keep this one for userspace iptables binary compability: */
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+ u_int8_t kerneltime; /* ignore skb time (and use kerneltime) or not. */
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+
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+ time_t date_start;
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+ time_t date_stop;
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+};
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+
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+
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+#endif /* __ipt_time_h_included__ */
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--- /dev/null
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+++ b/net/ipv4/netfilter/ipt_time.c
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@@ -0,0 +1,180 @@
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+/*
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+ This is a module which is used for time matching
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+ It is using some modified code from dietlibc (localtime() function)
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+ that you can find at http://www.fefe.de/dietlibc/
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+ This file is distributed under the terms of the GNU General Public
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+ License (GPL). Copies of the GPL can be obtained from: ftp://prep.ai.mit.edu/pub/gnu/GPL
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+ 2001-05-04 Fabrice MARIE <fabrice@netfilter.org> : initial development.
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+ 2001-21-05 Fabrice MARIE <fabrice@netfilter.org> : bug fix in the match code,
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+ thanks to "Zeng Yu" <zengy@capitel.com.cn> for bug report.
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+ 2001-26-09 Fabrice MARIE <fabrice@netfilter.org> : force the match to be in LOCAL_IN or PRE_ROUTING only.
|
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+ 2001-30-11 Fabrice : added the possibility to use the match in FORWARD/OUTPUT with a little hack,
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+ added Nguyen Dang Phuoc Dong <dongnd@tlnet.com.vn> patch to support timezones.
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+ 2004-05-02 Fabrice : added support for date matching, from an idea of Fabien COELHO.
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+*/
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+
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+#include <linux/module.h>
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+#include <linux/skbuff.h>
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+#include <linux/netfilter_ipv4/ip_tables.h>
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+#include <linux/netfilter_ipv4/ipt_time.h>
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+#include <linux/time.h>
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+
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+MODULE_AUTHOR("Fabrice MARIE <fabrice@netfilter.org>");
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+MODULE_DESCRIPTION("Match arrival timestamp/date");
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+MODULE_LICENSE("GPL");
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+
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+struct tm
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+{
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+ int tm_sec; /* Seconds. [0-60] (1 leap second) */
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+ int tm_min; /* Minutes. [0-59] */
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+ int tm_hour; /* Hours. [0-23] */
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+ int tm_mday; /* Day. [1-31] */
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+ int tm_mon; /* Month. [0-11] */
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+ int tm_year; /* Year - 1900. */
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+ int tm_wday; /* Day of week. [0-6] */
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+ int tm_yday; /* Days in year.[0-365] */
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+ int tm_isdst; /* DST. [-1/0/1]*/
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+
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+ long int tm_gmtoff; /* we don't care, we count from GMT */
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+ const char *tm_zone; /* we don't care, we count from GMT */
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+};
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+
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+void
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+localtime(const u32 time, struct tm *r);
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+
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+static bool
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+match(const struct sk_buff *skb,
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+ const struct net_device *in,
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+ const struct net_device *out,
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+ const struct xt_match *match,
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+ const void *matchinfo,
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+ int offset,
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+ unsigned int protoff,
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|
||||||
+ bool *hotdrop)
|
|
||||||
+{
|
|
||||||
+ const struct ipt_time_info *info = matchinfo; /* match info for rule */
|
|
||||||
+ struct timeval tv;
|
|
||||||
+ struct tm currenttime; /* time human readable */
|
|
||||||
+ u_int8_t days_of_week[7] = {64, 32, 16, 8, 4, 2, 1};
|
|
||||||
+ u_int16_t packet_time;
|
|
||||||
+
|
|
||||||
+ /* We might not have a timestamp, get one */
|
|
||||||
+ if (skb->tstamp.tv64 == 0)
|
|
||||||
+ __net_timestamp((struct sk_buff *)skb);
|
|
||||||
+
|
|
||||||
+ skb_get_timestamp(skb, &tv);
|
|
||||||
+ /* First we make sure we are in the date start-stop boundaries */
|
|
||||||
+ if ((tv.tv_sec < info->date_start) || (tv.tv_sec > info->date_stop))
|
|
||||||
+ return 0; /* We are outside the date boundaries */
|
|
||||||
+
|
|
||||||
+ /* Transform the timestamp of the packet, in a human readable form */
|
|
||||||
+ localtime(tv.tv_sec, ¤ttime);
|
|
||||||
+
|
|
||||||
+ /* check if we match this timestamp, we start by the days... */
|
|
||||||
+ if ((days_of_week[currenttime.tm_wday] & info->days_match) != days_of_week[currenttime.tm_wday])
|
|
||||||
+ return 0; /* the day doesn't match */
|
|
||||||
+
|
|
||||||
+ /* ... check the time now */
|
|
||||||
+ packet_time = (currenttime.tm_hour * 60) + currenttime.tm_min;
|
|
||||||
+ if ((packet_time < info->time_start) || (packet_time > info->time_stop))
|
|
||||||
+ return 0;
|
|
||||||
+
|
|
||||||
+ /* here we match ! */
|
|
||||||
+ return 1;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static bool
|
|
||||||
+checkentry(const char *tablename,
|
|
||||||
+ const void *ip,
|
|
||||||
+ const struct xt_match *match,
|
|
||||||
+ void *matchinfo,
|
|
||||||
+ unsigned int hook_mask)
|
|
||||||
+{
|
|
||||||
+ struct ipt_time_info *info = matchinfo; /* match info for rule */
|
|
||||||
+
|
|
||||||
+ /* First, check that we are in the correct hooks */
|
|
||||||
+ if (hook_mask
|
|
||||||
+ & ~((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_IN) | (1 << NF_INET_FORWARD) | (1 << NF_INET_LOCAL_OUT)))
|
|
||||||
+ {
|
|
||||||
+ printk("ipt_time: error, only valid for PRE_ROUTING, LOCAL_IN, FORWARD and OUTPUT)\n");
|
|
||||||
+ return 0;
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
+ /* Now check the coherence of the data ... */
|
|
||||||
+ if ((info->time_start > 1439) || /* 23*60+59 = 1439*/
|
|
||||||
+ (info->time_stop > 1439))
|
|
||||||
+ {
|
|
||||||
+ printk(KERN_WARNING "ipt_time: invalid argument\n");
|
|
||||||
+ return 0;
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
+ return 1;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static struct ipt_match time_match = {
|
|
||||||
+ .name = "time",
|
|
||||||
+ .match = &match,
|
|
||||||
+ .matchsize = sizeof(struct ipt_time_info),
|
|
||||||
+ .checkentry = &checkentry,
|
|
||||||
+ .me = THIS_MODULE
|
|
||||||
+};
|
|
||||||
+
|
|
||||||
+static int __init init(void)
|
|
||||||
+{
|
|
||||||
+ printk("ipt_time loading\n");
|
|
||||||
+ return xt_register_match(&time_match);
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static void __exit fini(void)
|
|
||||||
+{
|
|
||||||
+ xt_unregister_match(&time_match);
|
|
||||||
+ printk("ipt_time unloaded\n");
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+module_init(init);
|
|
||||||
+module_exit(fini);
|
|
||||||
+
|
|
||||||
+
|
|
||||||
+/* The part below is borowed and modified from dietlibc */
|
|
||||||
+
|
|
||||||
+/* seconds per day */
|
|
||||||
+#define SPD 24*60*60
|
|
||||||
+
|
|
||||||
+void
|
|
||||||
+localtime(const u32 time, struct tm *r) {
|
|
||||||
+ u32 i, timep;
|
|
||||||
+ extern struct timezone sys_tz;
|
|
||||||
+ const unsigned int __spm[12] =
|
|
||||||
+ { 0,
|
|
||||||
+ (31),
|
|
||||||
+ (31+28),
|
|
||||||
+ (31+28+31),
|
|
||||||
+ (31+28+31+30),
|
|
||||||
+ (31+28+31+30+31),
|
|
||||||
+ (31+28+31+30+31+30),
|
|
||||||
+ (31+28+31+30+31+30+31),
|
|
||||||
+ (31+28+31+30+31+30+31+31),
|
|
||||||
+ (31+28+31+30+31+30+31+31+30),
|
|
||||||
+ (31+28+31+30+31+30+31+31+30+31),
|
|
||||||
+ (31+28+31+30+31+30+31+31+30+31+30),
|
|
||||||
+ };
|
|
||||||
+ register u32 work;
|
|
||||||
+
|
|
||||||
+ timep = time - (sys_tz.tz_minuteswest * 60);
|
|
||||||
+ work=timep%(SPD);
|
|
||||||
+ r->tm_sec=work%60; work/=60;
|
|
||||||
+ r->tm_min=work%60; r->tm_hour=work/60;
|
|
||||||
+ work=timep/(SPD);
|
|
||||||
+ r->tm_wday=(4+work)%7;
|
|
||||||
+ for (i=1970; ; ++i) {
|
|
||||||
+ register time_t k= (!(i%4) && ((i%100) || !(i%400)))?366:365;
|
|
||||||
+ if (work>k)
|
|
||||||
+ work-=k;
|
|
||||||
+ else
|
|
||||||
+ break;
|
|
||||||
+ }
|
|
||||||
+ r->tm_year=i-1900;
|
|
||||||
+ for (i=11; i && __spm[i]>work; --i) ;
|
|
||||||
+ r->tm_mon=i;
|
|
||||||
+ r->tm_mday=work-__spm[i]+1;
|
|
||||||
+}
|
|
||||||
--- a/net/ipv4/netfilter/Kconfig
|
|
||||||
+++ b/net/ipv4/netfilter/Kconfig
|
|
||||||
@@ -57,6 +57,20 @@ config IP_NF_IPTABLES
|
|
||||||
To compile it as a module, choose M here. If unsure, say N.
|
|
||||||
|
|
||||||
# The matches.
|
|
||||||
+config IP_NF_MATCH_TIME
|
|
||||||
+ tristate 'TIME match support'
|
|
||||||
+ depends on IP_NF_IPTABLES
|
|
||||||
+ help
|
|
||||||
+ This option adds a `time' match, which allows you
|
|
||||||
+ to match based on the packet arrival time/date
|
|
||||||
+ (arrival time/date at the machine which netfilter is running on) or
|
|
||||||
+ departure time/date (for locally generated packets).
|
|
||||||
+
|
|
||||||
+ If you say Y here, try iptables -m time --help for more information.
|
|
||||||
+ If you want to compile it as a module, say M here and read
|
|
||||||
+
|
|
||||||
+ Documentation/modules.txt. If unsure, say `N'.
|
|
||||||
+
|
|
||||||
config IP_NF_MATCH_RECENT
|
|
||||||
tristate '"recent" match support'
|
|
||||||
depends on IP_NF_IPTABLES
|
|
||||||
--- a/net/ipv4/netfilter/Makefile
|
|
||||||
+++ b/net/ipv4/netfilter/Makefile
|
|
||||||
@@ -47,6 +47,7 @@ obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn
|
|
||||||
obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o
|
|
||||||
obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
|
|
||||||
obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o
|
|
||||||
+obj-$(CONFIG_IP_NF_MATCH_TIME) += ipt_time.o
|
|
||||||
|
|
||||||
# targets
|
|
||||||
obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o
|
|
||||||
Loading…
Reference in a new issue