+++ /dev/null
-diff -Nur a/libxt_layer7.c b/libxt_layer7.c
---- a/extensions/libxt_layer7.c 1970-01-01 01:00:00.000000000 +0100
-+++ b/extensions/libxt_layer7.c 2008-08-22 16:00:52.000000000 +0200
-@@ -0,0 +1,368 @@
-+/*
-+ Shared library add-on to iptables for layer 7 matching support.
-+
-+ By Matthew Strait <quadong@users.sf.net>, Oct 2003-Aug 2008.
-+
-+ 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
-+*/
-+
-+#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 <xtables.h>
-+#include <linux/netfilter/xt_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 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 named protocol using /etc/l7-protocols/.../name.pat\n");
-+}
-+
-+static const struct option opts[] = {
-+ { .name = "l7proto", .has_arg = 1, .val = 'p' },
-+ { .name = "l7dir", .has_arg = 1, .val = 'd' },
-+ { .name = NULL }
-+};
-+
-+/* reads filename, puts protocol info into layer7_protocol_info, number of protocols to numprotos */
-+static int parse_protocol_file(char * filename, const char * protoname, struct xt_layer7_info *info)
-+{
-+ FILE * f;
-+ char * line = NULL;
-+ size_t 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)
-+ {
-+ /* Ignore everything on the line beginning with the
-+ first space or tab . For instance, this allows the
-+ protocol line in http.pat to be "http " (or
-+ "http I am so cool") instead of just "http". */
-+ if(strchr(line, ' ')){
-+ char * space = strchr(line, ' ');
-+ space[0] = '\0';
-+ }
-+ if(strchr(line, '\t')){
-+ char * space = strchr(line, '\t');
-+ space[0] = '\0';
-+ }
-+
-+ /* sanity check. First non-comment non-blank
-+ line must be the same as the file name. */
-+ if(strcmp(line, protoname))
-+ xtables_error(OTHER_PROBLEM,
-+ "Protocol name (%s) doesn't match file name (%s). Bailing out\n",
-+ line, filename);
-+
-+ if(strlen(line) >= MAX_PROTOCOL_LEN)
-+ xtables_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)
-+ xtables_error(PARAMETER_PROBLEM, "Pattern in %s too long!", filename);
-+ strncpy(info->pattern, line, MAX_PATTERN_LEN);
-+
-+ datatype = done;
-+ break;
-+ }
-+ else
-+ xtables_error(OTHER_PROBLEM, "Internal error");
-+ }
-+
-+ if(datatype != done)
-+ xtables_error(OTHER_PROBLEM, "Failed to get all needed data from %s", filename);
-+
-+ if(line) free(line);
-+ fclose(f);
-+
-+ return 1;
-+}
-+
-+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:
-+ xtables_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, rrindex = 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[rrindex] = tolower( hex2dec(s[sindex + 2])*16 +
-+ hex2dec(s[sindex + 3] ) );
-+
-+ switch ( result[rrindex] )
-+ {
-+ case 0x24:
-+ case 0x28:
-+ case 0x29:
-+ case 0x2a:
-+ case 0x2b:
-+ case 0x2e:
-+ case 0x3f:
-+ case 0x5b:
-+ case 0x5c:
-+ case 0x5d:
-+ case 0x5e:
-+ case 0x7c:
-+ fprintf(stderr,
-+ "Warning: layer7 regexp contains a control character, %c, in hex (\\x%c%c).\n"
-+ "I recommend that you write this as %c or \\%c, depending on what you meant.\n",
-+ result[rrindex], s[sindex + 2], s[sindex + 3], result[rrindex], result[rrindex]);
-+ break;
-+ case 0x00:
-+ fprintf(stderr,
-+ "Warning: null (\\x00) in layer7 regexp. A null terminates the regexp string!\n");
-+ break;
-+ default:
-+ break;
-+ }
-+
-+
-+ sindex += 3; /* 4 total */
-+ }
-+ else
-+ result[rrindex] = tolower(s[sindex]);
-+
-+ sindex++;
-+ rrindex++;
-+ }
-+ result[rrindex] = '\0';
-+
-+ return result;
-+}
-+
-+#define MAX_SUBDIRS 128
-+static 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");
-+ xtables_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 char *s, struct xt_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);
-+
-+ if(c > MAX_FN_LEN)
-+ xtables_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)){
-+ done = 1;
-+ break;
-+ }
-+
-+ n++;
-+ }
-+
-+ if(!done)
-+ xtables_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 void *entry, struct xt_entry_match **match)
-+{
-+ struct xt_layer7_info *layer7info =
-+ (struct xt_layer7_info *)(*match)->data;
-+
-+ switch (c) {
-+ case 'p':
-+ parse_layer7_protocol(argv[optind-1], layer7info);
-+ if (invert)
-+ layer7info->invert = true;
-+ *flags = 1;
-+ break;
-+
-+ case 'd':
-+ if(strlen(argv[optind-1]) >= MAX_FN_LEN)
-+ xtables_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 --l7proto */
-+static void final_check(unsigned int flags)
-+{
-+ if (!flags)
-+ xtables_error(PARAMETER_PROBLEM,
-+ "LAYER7 match: You must specify `--l7proto'");
-+}
-+
-+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 void *ip,
-+ const struct xt_entry_match *match,
-+ int numeric)
-+{
-+ printf("LAYER7 ");
-+ print_protocol(((struct xt_layer7_info *)match->data)->protocol,
-+ ((struct xt_layer7_info *)match->data)->invert, numeric);
-+}
-+/* Saves the union ipt_matchinfo in parsable form to stdout. */
-+static void save(const void *ip, const struct xt_entry_match *match)
-+{
-+ const struct xt_layer7_info *info =
-+ (const struct xt_layer7_info*) match->data;
-+
-+ printf("--l7proto %s%s ", (info->invert)? "! ":"", info->protocol);
-+}
-+
-+static struct xtables_match layer7 = {
-+ .family = AF_INET,
-+ .name = "layer7",
-+ .version = XTABLES_VERSION,
-+ .size = XT_ALIGN(sizeof(struct xt_layer7_info)),
-+ .userspacesize = XT_ALIGN(sizeof(struct xt_layer7_info)),
-+ .help = &help,
-+ .parse = &parse,
-+ .final_check = &final_check,
-+ .print = &print,
-+ .save = &save,
-+ .extra_opts = opts
-+};
-+
-+void _init(void)
-+{
-+ xtables_register_match(&layer7);
-+}
-diff -Nur a/libxt_layer7.man b/libxt_layer7.man
---- a/extensions/libxt_layer7.man 1970-01-01 01:00:00.000000000 +0100
-+++ b/extensions/libxt_layer7.man 2008-08-22 16:00:52.000000000 +0200
-@@ -0,0 +1,14 @@
-+This module matches packets based on the application layer data of
-+their connections. It uses regular expression matching to compare
-+the application layer data to regular expressions found it the layer7
-+configuration files. This is an experimental module which can be found at
-+http://l7-filter.sf.net. It takes two options.
-+.TP
-+.BI "--l7proto " "\fIprotocol\fP"
-+Match the specified protocol. The protocol name must match a file
-+name in /etc/l7-protocols/ or one of its first-level child directories.
-+.TP
-+.BI "--l7dir " "\fIdirectory\fP"
-+Use \fIdirectory\fP instead of /etc/l7-protocols/. This option must be
-+specified before --l7proto.
-+
+++ /dev/null
---- /dev/null
-+++ b/extensions/.IMQ-testx
-@@ -0,0 +1,3 @@
-+#!/bin/sh
-+# True if IMQ target patch is applied.
-+[ -f $KERNEL_DIR/include/linux/netfilter/xt_IMQ.h ] && echo IMQ
---- /dev/null
-+++ b/extensions/libxt_IMQ.c
-@@ -0,0 +1,103 @@
-+/* Shared library add-on to iptables to add IMQ target support. */
-+#include <stdio.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include <getopt.h>
-+
-+#include <xtables.h>
-+#include <linux/netfilter/x_tables.h>
-+#include <linux/netfilter/xt_IMQ.h>
-+
-+/* Function which prints out usage message. */
-+static void IMQ_help(void)
-+{
-+ printf(
-+"IMQ target v%s options:\n"
-+" --todev <N> enqueue to imq<N>, defaults to 0\n",
-+XTABLES_VERSION);
-+}
-+
-+static struct option IMQ_opts[] = {
-+ { "todev", 1, 0, '1' },
-+ { 0 }
-+};
-+
-+/* Initialize the target. */
-+static void IMQ_init(struct xt_entry_target *t)
-+{
-+ struct xt_imq_info *mr = (struct xt_imq_info*)t->data;
-+
-+ mr->todev = 0;
-+}
-+
-+/* Function which parses command options; returns true if it
-+ ate an option */
-+static int IMQ_parse(int c, char **argv, int invert, unsigned int *flags,
-+ const void *entry, struct xt_entry_target **target)
-+{
-+ struct xt_imq_info *mr = (struct xt_imq_info*)(*target)->data;
-+
-+ switch(c) {
-+ case '1':
-+ if (xtables_check_inverse(optarg, &invert, NULL, 0))
-+ xtables_error(PARAMETER_PROBLEM,
-+ "Unexpected `!' after --todev");
-+ mr->todev=atoi(optarg);
-+ break;
-+ default:
-+ return 0;
-+ }
-+ return 1;
-+}
-+
-+/* Prints out the targinfo. */
-+static void IMQ_print(const void *ip,
-+ const struct xt_entry_target *target,
-+ int numeric)
-+{
-+ struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
-+
-+ printf("IMQ: todev %u ", mr->todev);
-+}
-+
-+/* Saves the union ipt_targinfo in parsable form to stdout. */
-+static void IMQ_save(const void *ip, const struct xt_entry_target *target)
-+{
-+ struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
-+
-+ printf("--todev %u", mr->todev);
-+}
-+
-+static struct xtables_target imq_target = {
-+ .name = "IMQ",
-+ .version = XTABLES_VERSION,
-+ .family = AF_INET,
-+ .size = XT_ALIGN(sizeof(struct xt_imq_info)),
-+ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)),
-+ .help = IMQ_help,
-+ .init = IMQ_init,
-+ .parse = IMQ_parse,
-+ .print = IMQ_print,
-+ .save = IMQ_save,
-+ .extra_opts = IMQ_opts,
-+};
-+
-+static struct xtables_target imq_target6 = {
-+ .name = "IMQ",
-+ .version = XTABLES_VERSION,
-+ .family = AF_INET6,
-+ .size = XT_ALIGN(sizeof(struct xt_imq_info)),
-+ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)),
-+ .help = IMQ_help,
-+ .init = IMQ_init,
-+ .parse = IMQ_parse,
-+ .print = IMQ_print,
-+ .save = IMQ_save,
-+ .extra_opts = IMQ_opts,
-+};
-+
-+void _init(void)
-+{
-+ xtables_register_target(&imq_target);
-+ xtables_register_target(&imq_target6);
-+}
---- /dev/null
-+++ b/include/linux/netfilter/xt_IMQ.h
-@@ -0,0 +1,9 @@
-+#ifndef _XT_IMQ_H
-+#define _XT_IMQ_H
-+
-+struct xt_imq_info {
-+ unsigned int todev; /* target imq device */
-+};
-+
-+#endif /* _XT_IMQ_H */
-+
+++ /dev/null
---- a/include/linux/netfilter.h
-+++ b/include/linux/netfilter.h
-@@ -1,6 +1,7 @@
- #ifndef __LINUX_NETFILTER_H
- #define __LINUX_NETFILTER_H
-
-+#include <linux/types.h>
-
- /* Responses from hook functions. */
- #define NF_DROP 0
+++ /dev/null
---- a/libiptc/libiptc.c
-+++ b/libiptc/libiptc.c
-@@ -69,7 +69,7 @@
- struct ipt_error_target
- {
- STRUCT_ENTRY_TARGET t;
-- char error[TABLE_MAXNAMELEN];
-+ char error[FUNCTION_MAXNAMELEN];
- };
-
- struct chain_head;
+++ /dev/null
-diff -ur iptables-1.4.3.2.orig/xtables.c iptables-1.4.3.2/xtables.c
---- iptables-1.4.3.2.orig/xtables.c 2009-05-03 16:17:53.000000000 +0200
-+++ iptables-1.4.3.2/xtables.c 2009-05-03 16:27:37.000000000 +0200
-@@ -1502,7 +1502,8 @@
- else {
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE(xtables_chain_protos); ++i) {
-- if (strcmp(s, xtables_chain_protos[i].name) == 0) {
-+ if ((xtables_chain_protos[i].name != NULL) &&
-+ (strcmp(s, xtables_chain_protos[i].name) == 0)) {
- proto = xtables_chain_protos[i].num;
- break;
- }
--- /dev/null
+diff -Nur a/libxt_layer7.c b/libxt_layer7.c
+--- a/extensions/libxt_layer7.c 1970-01-01 01:00:00.000000000 +0100
++++ b/extensions/libxt_layer7.c 2008-08-22 16:00:52.000000000 +0200
+@@ -0,0 +1,368 @@
++/*
++ Shared library add-on to iptables for layer 7 matching support.
++
++ By Matthew Strait <quadong@users.sf.net>, Oct 2003-Aug 2008.
++
++ 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
++*/
++
++#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 <xtables.h>
++#include <linux/netfilter/xt_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 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 named protocol using /etc/l7-protocols/.../name.pat\n");
++}
++
++static const struct option opts[] = {
++ { .name = "l7proto", .has_arg = 1, .val = 'p' },
++ { .name = "l7dir", .has_arg = 1, .val = 'd' },
++ { .name = NULL }
++};
++
++/* reads filename, puts protocol info into layer7_protocol_info, number of protocols to numprotos */
++static int parse_protocol_file(char * filename, const char * protoname, struct xt_layer7_info *info)
++{
++ FILE * f;
++ char * line = NULL;
++ size_t 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)
++ {
++ /* Ignore everything on the line beginning with the
++ first space or tab . For instance, this allows the
++ protocol line in http.pat to be "http " (or
++ "http I am so cool") instead of just "http". */
++ if(strchr(line, ' ')){
++ char * space = strchr(line, ' ');
++ space[0] = '\0';
++ }
++ if(strchr(line, '\t')){
++ char * space = strchr(line, '\t');
++ space[0] = '\0';
++ }
++
++ /* sanity check. First non-comment non-blank
++ line must be the same as the file name. */
++ if(strcmp(line, protoname))
++ xtables_error(OTHER_PROBLEM,
++ "Protocol name (%s) doesn't match file name (%s). Bailing out\n",
++ line, filename);
++
++ if(strlen(line) >= MAX_PROTOCOL_LEN)
++ xtables_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)
++ xtables_error(PARAMETER_PROBLEM, "Pattern in %s too long!", filename);
++ strncpy(info->pattern, line, MAX_PATTERN_LEN);
++
++ datatype = done;
++ break;
++ }
++ else
++ xtables_error(OTHER_PROBLEM, "Internal error");
++ }
++
++ if(datatype != done)
++ xtables_error(OTHER_PROBLEM, "Failed to get all needed data from %s", filename);
++
++ if(line) free(line);
++ fclose(f);
++
++ return 1;
++}
++
++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:
++ xtables_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, rrindex = 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[rrindex] = tolower( hex2dec(s[sindex + 2])*16 +
++ hex2dec(s[sindex + 3] ) );
++
++ switch ( result[rrindex] )
++ {
++ case 0x24:
++ case 0x28:
++ case 0x29:
++ case 0x2a:
++ case 0x2b:
++ case 0x2e:
++ case 0x3f:
++ case 0x5b:
++ case 0x5c:
++ case 0x5d:
++ case 0x5e:
++ case 0x7c:
++ fprintf(stderr,
++ "Warning: layer7 regexp contains a control character, %c, in hex (\\x%c%c).\n"
++ "I recommend that you write this as %c or \\%c, depending on what you meant.\n",
++ result[rrindex], s[sindex + 2], s[sindex + 3], result[rrindex], result[rrindex]);
++ break;
++ case 0x00:
++ fprintf(stderr,
++ "Warning: null (\\x00) in layer7 regexp. A null terminates the regexp string!\n");
++ break;
++ default:
++ break;
++ }
++
++
++ sindex += 3; /* 4 total */
++ }
++ else
++ result[rrindex] = tolower(s[sindex]);
++
++ sindex++;
++ rrindex++;
++ }
++ result[rrindex] = '\0';
++
++ return result;
++}
++
++#define MAX_SUBDIRS 128
++static 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");
++ xtables_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 char *s, struct xt_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);
++
++ if(c > MAX_FN_LEN)
++ xtables_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)){
++ done = 1;
++ break;
++ }
++
++ n++;
++ }
++
++ if(!done)
++ xtables_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 void *entry, struct xt_entry_match **match)
++{
++ struct xt_layer7_info *layer7info =
++ (struct xt_layer7_info *)(*match)->data;
++
++ switch (c) {
++ case 'p':
++ parse_layer7_protocol(argv[optind-1], layer7info);
++ if (invert)
++ layer7info->invert = true;
++ *flags = 1;
++ break;
++
++ case 'd':
++ if(strlen(argv[optind-1]) >= MAX_FN_LEN)
++ xtables_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 --l7proto */
++static void final_check(unsigned int flags)
++{
++ if (!flags)
++ xtables_error(PARAMETER_PROBLEM,
++ "LAYER7 match: You must specify `--l7proto'");
++}
++
++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 void *ip,
++ const struct xt_entry_match *match,
++ int numeric)
++{
++ printf("LAYER7 ");
++ print_protocol(((struct xt_layer7_info *)match->data)->protocol,
++ ((struct xt_layer7_info *)match->data)->invert, numeric);
++}
++/* Saves the union ipt_matchinfo in parsable form to stdout. */
++static void save(const void *ip, const struct xt_entry_match *match)
++{
++ const struct xt_layer7_info *info =
++ (const struct xt_layer7_info*) match->data;
++
++ printf("--l7proto %s%s ", (info->invert)? "! ":"", info->protocol);
++}
++
++static struct xtables_match layer7 = {
++ .family = AF_INET,
++ .name = "layer7",
++ .version = XTABLES_VERSION,
++ .size = XT_ALIGN(sizeof(struct xt_layer7_info)),
++ .userspacesize = XT_ALIGN(sizeof(struct xt_layer7_info)),
++ .help = &help,
++ .parse = &parse,
++ .final_check = &final_check,
++ .print = &print,
++ .save = &save,
++ .extra_opts = opts
++};
++
++void _init(void)
++{
++ xtables_register_match(&layer7);
++}
+diff -Nur a/libxt_layer7.man b/libxt_layer7.man
+--- a/extensions/libxt_layer7.man 1970-01-01 01:00:00.000000000 +0100
++++ b/extensions/libxt_layer7.man 2008-08-22 16:00:52.000000000 +0200
+@@ -0,0 +1,14 @@
++This module matches packets based on the application layer data of
++their connections. It uses regular expression matching to compare
++the application layer data to regular expressions found it the layer7
++configuration files. This is an experimental module which can be found at
++http://l7-filter.sf.net. It takes two options.
++.TP
++.BI "--l7proto " "\fIprotocol\fP"
++Match the specified protocol. The protocol name must match a file
++name in /etc/l7-protocols/ or one of its first-level child directories.
++.TP
++.BI "--l7dir " "\fIdirectory\fP"
++Use \fIdirectory\fP instead of /etc/l7-protocols/. This option must be
++specified before --l7proto.
++
--- /dev/null
+--- /dev/null
++++ b/extensions/.IMQ-testx
+@@ -0,0 +1,3 @@
++#!/bin/sh
++# True if IMQ target patch is applied.
++[ -f $KERNEL_DIR/include/linux/netfilter/xt_IMQ.h ] && echo IMQ
+--- /dev/null
++++ b/extensions/libxt_IMQ.c
+@@ -0,0 +1,103 @@
++/* Shared library add-on to iptables to add IMQ target support. */
++#include <stdio.h>
++#include <string.h>
++#include <stdlib.h>
++#include <getopt.h>
++
++#include <xtables.h>
++#include <linux/netfilter/x_tables.h>
++#include <linux/netfilter/xt_IMQ.h>
++
++/* Function which prints out usage message. */
++static void IMQ_help(void)
++{
++ printf(
++"IMQ target v%s options:\n"
++" --todev <N> enqueue to imq<N>, defaults to 0\n",
++XTABLES_VERSION);
++}
++
++static struct option IMQ_opts[] = {
++ { "todev", 1, 0, '1' },
++ { 0 }
++};
++
++/* Initialize the target. */
++static void IMQ_init(struct xt_entry_target *t)
++{
++ struct xt_imq_info *mr = (struct xt_imq_info*)t->data;
++
++ mr->todev = 0;
++}
++
++/* Function which parses command options; returns true if it
++ ate an option */
++static int IMQ_parse(int c, char **argv, int invert, unsigned int *flags,
++ const void *entry, struct xt_entry_target **target)
++{
++ struct xt_imq_info *mr = (struct xt_imq_info*)(*target)->data;
++
++ switch(c) {
++ case '1':
++ if (xtables_check_inverse(optarg, &invert, NULL, 0))
++ xtables_error(PARAMETER_PROBLEM,
++ "Unexpected `!' after --todev");
++ mr->todev=atoi(optarg);
++ break;
++ default:
++ return 0;
++ }
++ return 1;
++}
++
++/* Prints out the targinfo. */
++static void IMQ_print(const void *ip,
++ const struct xt_entry_target *target,
++ int numeric)
++{
++ struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
++
++ printf("IMQ: todev %u ", mr->todev);
++}
++
++/* Saves the union ipt_targinfo in parsable form to stdout. */
++static void IMQ_save(const void *ip, const struct xt_entry_target *target)
++{
++ struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
++
++ printf("--todev %u", mr->todev);
++}
++
++static struct xtables_target imq_target = {
++ .name = "IMQ",
++ .version = XTABLES_VERSION,
++ .family = AF_INET,
++ .size = XT_ALIGN(sizeof(struct xt_imq_info)),
++ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)),
++ .help = IMQ_help,
++ .init = IMQ_init,
++ .parse = IMQ_parse,
++ .print = IMQ_print,
++ .save = IMQ_save,
++ .extra_opts = IMQ_opts,
++};
++
++static struct xtables_target imq_target6 = {
++ .name = "IMQ",
++ .version = XTABLES_VERSION,
++ .family = AF_INET6,
++ .size = XT_ALIGN(sizeof(struct xt_imq_info)),
++ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)),
++ .help = IMQ_help,
++ .init = IMQ_init,
++ .parse = IMQ_parse,
++ .print = IMQ_print,
++ .save = IMQ_save,
++ .extra_opts = IMQ_opts,
++};
++
++void _init(void)
++{
++ xtables_register_target(&imq_target);
++ xtables_register_target(&imq_target6);
++}
+--- /dev/null
++++ b/include/linux/netfilter/xt_IMQ.h
+@@ -0,0 +1,9 @@
++#ifndef _XT_IMQ_H
++#define _XT_IMQ_H
++
++struct xt_imq_info {
++ unsigned int todev; /* target imq device */
++};
++
++#endif /* _XT_IMQ_H */
++
--- /dev/null
+--- a/include/linux/netfilter.h
++++ b/include/linux/netfilter.h
+@@ -1,6 +1,7 @@
+ #ifndef __LINUX_NETFILTER_H
+ #define __LINUX_NETFILTER_H
+
++#include <linux/types.h>
+
+ /* Responses from hook functions. */
+ #define NF_DROP 0
--- /dev/null
+--- a/libiptc/libiptc.c
++++ b/libiptc/libiptc.c
+@@ -69,7 +69,7 @@
+ struct ipt_error_target
+ {
+ STRUCT_ENTRY_TARGET t;
+- char error[TABLE_MAXNAMELEN];
++ char error[FUNCTION_MAXNAMELEN];
+ };
+
+ struct chain_head;
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