add new layer7 patch

SVN-Revision: 1779

1 files changed, 0 insertions, 372 deletions

diff --git a/openwrt/package/iptables/patches/02-layer7-1.1.patch b/openwrt/package/iptables/patches/02-layer7-1.4.patch
index 6eee8a1..7ef6df5 100644
--- a/openwrt/package/iptables/patches/02-layer7-1.1.patch
+++ b/openwrt/package/iptables/patches/02-layer7-1.4.patch
@@ -365,367 +365,6 @@ diff -Nurp iptables-1.3.0-stock/extensions/libipt_layer7.c iptables-1.3.0-layer7
 +{
 +	register_match(&layer7);
 +}
-diff -Nurp iptables-1.3.0-stock/extensions/libipt_layer7.c.orig iptables-1.3.0-layer7/extensions/libipt_layer7.c.orig
---- iptables-1.3.0-stock/extensions/libipt_layer7.c.orig	1969-12-31 18:00:00.000000000 -0600
-+++ iptables-1.3.0-layer7/extensions/libipt_layer7.c.orig	2005-03-06 22:20:28.000000000 -0600
-@@ -0,0 +1,357 @@
-+/* 
-+   Shared library add-on to iptables to add layer 7 matching support. 
-+  
-+   By Matthew Strait <quadong@users.sf.net>, Oct 2003.
-+
-+   http://l7-filter.sf.net 
-+
-+   This program is free software; you can redistribute it and/or
-+   modify it under the terms of the GNU General Public License
-+   as published by the Free Software Foundation; either version
-+   2 of the License, or (at your option) any later version.
-+   http://www.gnu.org/licenses/gpl.txt
-+
-+   Based on libipt_string.c (C) 2000 Emmanuel Roger <winfield@freegates.be>
-+*/
-+
-+#define _GNU_SOURCE
-+#include <stdio.h>
-+#include <netdb.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include <getopt.h>
-+#include <ctype.h>
-+#include <dirent.h>
-+
-+#include <iptables.h>
-+#include <linux/netfilter_ipv4/ipt_layer7.h>
-+
-+#define MAX_FN_LEN 256
-+
-+static char l7dir[MAX_FN_LEN] = "\0";
-+
-+/* Function which prints out usage message. */
-+static void help(void)
-+{
-+	printf(
-+	"LAYER7 match v%s options:\n"
-+	"--l7dir <directory>  : Look for patterns here instead of /etc/l7-protocols/\n"
-+	"                       (--l7dir must be specified before --l7proto if used!)\n"
-+	"--l7proto [!] <name> : Match the protocol defined in /etc/l7-protocols/name.pat\n",
-+	IPTABLES_VERSION);
-+	fputc('\n', stdout);
-+}
-+
-+static struct option opts[] = {
-+	{ .name = "l7proto", .has_arg = 1, .flag = 0, .val = '1' },
-+	{ .name = "l7dir",   .has_arg = 1, .flag = 0, .val = '2' },
-+	{ .name = 0 }
-+};
-+
-+/* Initialize the match. */
-+static void init(struct ipt_entry_match *m, unsigned int *nfcache)
-+{
-+	*nfcache |= NFC_UNKNOWN;
-+}
-+
-+/* reads filename, puts protocol info into layer7_protocol_info, number of protocols to numprotos */
-+int parse_protocol_file(char * filename, const unsigned char * protoname, struct ipt_layer7_info *info)
-+{
-+	FILE * f;
-+	char * line = NULL;
-+	int len = 0;
-+
-+	enum { protocol, pattern, done } datatype = protocol;
-+
-+	f = fopen(filename, "r");
-+
-+	if(!f)
-+		return 0;
-+
-+	while(getline(&line, &len, f) != -1)
-+	{
-+		if(strlen(line) < 2 || line[0] == '#')
-+			continue;
-+
-+		/* strip the pesky newline... */
-+		if(line[strlen(line) - 1] == '\n')
-+			line[strlen(line) - 1] = '\0';
-+
-+		if(datatype == protocol)
-+		{
-+			if(strcmp(line, protoname))
-+				exit_error(OTHER_PROBLEM, 
-+					"Protocol name (%s) doesn't match file name (%s).  Bailing out\n",
-+					protoname, filename);
-+
-+			if(strlen(line) >= MAX_PROTOCOL_LEN)
-+				 exit_error(PARAMETER_PROBLEM, 
-+					"Protocol name in %s too long!", filename);
-+			strncpy(info->protocol, line, MAX_PROTOCOL_LEN);
-+
-+			datatype = pattern; 
-+		}
-+		else if(datatype == pattern)
-+		{
-+			if(strlen(line) >= MAX_PATTERN_LEN)
-+				 exit_error(PARAMETER_PROBLEM, "Pattern in %s too long!", filename);
-+			strncpy(info->pattern, line, MAX_PATTERN_LEN);
-+			
-+			datatype = done;			
-+			break;
-+		}
-+		else
-+			exit_error(OTHER_PROBLEM, "Internal error");
-+	}
-+
-+	if(datatype != done)
-+		exit_error(OTHER_PROBLEM, "Failed to get all needed data from %s", filename);
-+
-+	if(line) free(line);
-+	fclose(f);
-+
-+	return 1;
-+
-+/*
-+	fprintf(stderr, "protocol: %s\npattern: %s\n\n", 
-+			info->protocol,
-+			info->pattern);
-+*/
-+}
-+
-+static int hex2dec(char c)
-+{
-+        switch (c)
-+        {
-+                case '0' ... '9':
-+                        return c - '0';
-+                case 'a' ... 'f':
-+                        return c - 'a' + 10;
-+                case 'A' ... 'F':
-+                        return c - 'A' + 10;
-+                default:
-+                        exit_error(OTHER_PROBLEM, "hex2dec: bad value!\n");
-+                        return 0;
-+        }
-+}
-+
-+/* takes a string with \xHH escapes and returns one with the characters 
-+they stand for */
-+static char * pre_process(char * s)
-+{
-+	char * result = malloc(strlen(s) + 1);
-+	int sindex = 0, rindex = 0;
-+        while( sindex < strlen(s) )
-+        {
-+            if( sindex + 3 < strlen(s) &&
-+                s[sindex] == '\\' && s[sindex+1] == 'x' && 
-+                isxdigit(s[sindex + 2]) && isxdigit(s[sindex + 3]) ) 
-+                {
-+                        /* carefully remember to call tolower here... */
-+                        result[rindex] = tolower( hex2dec(s[sindex + 2])*16 +
-+                                                  hex2dec(s[sindex + 3] ) );
-+                        sindex += 3; /* 4 total */
-+                }
-+                else
-+                        result[rindex] = tolower(s[sindex]);
-+
-+		sindex++; 
-+		rindex++;
-+        }
-+	result[rindex] = '\0';
-+
-+	return result;
-+}
-+
-+#define MAX_SUBDIRS 128
-+char ** readl7dir(char * dirname)
-+{
-+        DIR             * scratchdir;
-+        struct dirent   ** namelist;
-+	char ** subdirs = malloc(MAX_SUBDIRS * sizeof(char *));
-+
-+        int n, d = 1;
-+	subdirs[0] = "";
-+
-+        n = scandir(dirname, &namelist, 0, alphasort);
-+
-+	if (n < 0)
-+	{
-+            perror("scandir");
-+	    exit_error(OTHER_PROBLEM, "Couldn't open %s\n", dirname);
-+	}
-+        else 
-+	{
-+            	while(n--) 
-+		{
-+			char fulldirname[MAX_FN_LEN];
-+
-+			snprintf(fulldirname, MAX_FN_LEN, "%s/%s", dirname, namelist[n]->d_name);
-+
-+                	if((scratchdir = opendir(fulldirname)) != NULL)
-+			{
-+				closedir(scratchdir);
-+
-+				if(!strcmp(namelist[n]->d_name, ".") || 
-+				   !strcmp(namelist[n]->d_name, ".."))
-+					/* do nothing */ ;
-+				else
-+				{
-+					subdirs[d] = malloc(strlen(namelist[n]->d_name) + 1);
-+					strcpy(subdirs[d], namelist[n]->d_name);
-+					d++;
-+					if(d >= MAX_SUBDIRS - 1)
-+					{
-+						fprintf(stderr, 
-+						  "Too many subdirectories, skipping the rest!\n");
-+						break;
-+					}
-+				}
-+			}
-+                	free(namelist[n]);
-+            	}
-+            	free(namelist);
-+        }
-+	
-+	subdirs[d] = NULL;
-+
-+	return subdirs;
-+}
-+
-+static void
-+parse_layer7_protocol(const unsigned char *s, struct ipt_layer7_info *info)
-+{
-+	char filename[MAX_FN_LEN];
-+	char * dir = NULL;
-+	char ** subdirs;
-+	int n = 0, done = 0;
-+
-+	if(strlen(l7dir) > 0)
-+		dir = l7dir;
-+	else
-+		dir = "/etc/l7-protocols";
-+
-+	subdirs = readl7dir(dir);
-+
-+	while(subdirs[n] != NULL)
-+	{
-+		int c = snprintf(filename, MAX_FN_LEN, "%s/%s/%s.pat", dir, subdirs[n], s);
-+
-+		//fprintf(stderr, "Trying to find pattern in %s ... ", filename);
-+
-+		if(c > MAX_FN_LEN)
-+		{
-+			exit_error(OTHER_PROBLEM, 
-+				"Filename beginning with %s is too long!\n", filename);
-+		}
-+
-+		/* read in the pattern from the file */
-+		if(parse_protocol_file(filename, s, info))
-+		{
-+			//fprintf(stderr, "found\n");
-+			done = 1;
-+			break;
-+		}
-+		
-+		//fprintf(stderr, "not found\n");
-+
-+		n++;
-+	}
-+
-+	if(!done)
-+		exit_error(OTHER_PROBLEM, 
-+			"Couldn't find a pattern definition file for %s.\n", s);
-+
-+	/* process \xHH escapes and tolower everything. (our regex lib has no
-+	case insensitivity option.) */
-+	strncpy(info->pattern, pre_process(info->pattern), MAX_PATTERN_LEN);
-+}
-+
-+/* Function which parses command options; returns true if it ate an option */
-+static int parse(int c, char **argv, int invert, unsigned int *flags,
-+      const struct ipt_entry *entry, unsigned int *nfcache,
-+      struct ipt_entry_match **match)
-+{
-+	struct ipt_layer7_info *layer7info = 
-+		(struct ipt_layer7_info *)(*match)->data;
-+
-+	switch (c) {
-+	case '1':
-+		check_inverse(optarg, &invert, &optind, 0);
-+		parse_layer7_protocol(argv[optind-1], layer7info);
-+		if (invert)
-+			layer7info->invert = 1;
-+		*flags = 1;
-+		break;
-+
-+	case '2':
-+		/* not going to use this, but maybe we need to strip a ! anyway (?) */
-+		check_inverse(optarg, &invert, &optind, 0);
-+
-+		if(strlen(argv[optind-1]) >= MAX_FN_LEN)
-+			exit_error(PARAMETER_PROBLEM, "directory name too long\n");
-+
-+		strncpy(l7dir, argv[optind-1], MAX_FN_LEN);
-+
-+		*flags = 1;
-+		break;
-+
-+	default:
-+		return 0;
-+	}
-+
-+	return 1;
-+}
-+
-+/* Final check; must have specified --pattern. */
-+static void final_check(unsigned int flags)
-+{
-+	if (!flags)
-+		exit_error(PARAMETER_PROBLEM,
-+			   "LAYER7 match: You must specify `--pattern'");
-+}
-+
-+static void print_protocol(char s[], int invert, int numeric)
-+{
-+	fputs("l7proto ", stdout);
-+	if (invert) fputc('!', stdout);
-+	printf("%s ", s);
-+}
-+
-+/* Prints out the matchinfo. */
-+static void print(const struct ipt_ip *ip,
-+      const struct ipt_entry_match *match,
-+      int numeric)
-+{
-+	printf("LAYER7 ");
-+
-+	print_protocol(((struct ipt_layer7_info *)match->data)->protocol,
-+		  ((struct ipt_layer7_info *)match->data)->invert, numeric);
-+}
-+/* Saves the union ipt_matchinfo in parsable form to stdout. */
-+static void save(const struct ipt_ip *ip, const struct ipt_entry_match *match)
-+{
-+        const struct ipt_layer7_info *info =
-+            (const struct ipt_layer7_info*) match->data;
-+
-+        printf("--l7proto %s%s ", (info->invert)   ? "! ": "", info->protocol);
-+}
-+
-+static struct iptables_match layer7 = { 
-+    .name          = "layer7",
-+    .version       = IPTABLES_VERSION,
-+    .size          = IPT_ALIGN(sizeof(struct ipt_layer7_info)),
-+    .userspacesize = IPT_ALIGN(sizeof(struct ipt_layer7_info)),
-+    .help          = &help,
-+    .init          = &init,
-+    .parse         = &parse,
-+    .final_check   = &final_check,
-+    .print         = &print,
-+    .save          = &save,
-+    .extra_opts    = opts
-+};
-+
-+void _init(void)
-+{
-+	register_match(&layer7);
-+}
 diff -Nurp iptables-1.3.0-stock/extensions/libipt_layer7.man iptables-1.3.0-layer7/extensions/libipt_layer7.man
 --- iptables-1.3.0-stock/extensions/libipt_layer7.man	1969-12-31 18:00:00.000000000 -0600
 +++ iptables-1.3.0-layer7/extensions/libipt_layer7.man	2005-03-01 22:12:06.000000000 -0600
@@ -743,14 +382,3 @@ diff -Nurp iptables-1.3.0-stock/extensions/libipt_layer7.man iptables-1.3.0-laye
 +.BI "--l7dir " "\fIdirectory\fP"
 +Use \fIdirectory\fP instead of /etc/l7-protocols/
 +
---- iptables-1.3.1/extensions/Makefile.orig	2005-04-01 23:02:50.000000000 +0200
-+++ iptables-1.3.1/extensions/Makefile	2005-04-01 23:03:06.000000000 +0200
-@@ -11,6 +11,8 @@
- 
- # ipp2p
- PF_EXT_SLIB += ipp2p
-+# layer7
-+PF_EXT_SLIB += layer7
- 
- # Optionals
- PF_EXT_SLIB_OPTS:=$(foreach T,$(wildcard extensions/.*-test),$(shell KERNEL_DIR=$(KERNEL_DIR) $(T)))