echo "LIBDIR:=$LIBDIR" >> $CONFIG
}
-check_ipt()
-{
- if ! grep TC_CONFIG_XT $CONFIG > /dev/null; then
- echo "using iptables"
- fi
-}
-
-check_ipt_lib_dir()
-{
- IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
- if [ -n "$IPT_LIB_DIR" ]; then
- echo $IPT_LIB_DIR
- echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> $CONFIG
- return
- fi
-
- for dir in /lib /usr/lib /usr/local/lib; do
- for file in "xtables" "iptables"; do
- file="$dir/$file/lib*t_*so"
- if [ -f $file ]; then
- echo ${file%/*}
- echo "IPT_LIB_DIR:=${file%/*}" >> $CONFIG
- return
- fi
- done
- done
- echo "not found!"
-}
-
check_setns()
{
cat >$TMPDIR/setnstest.c <<EOF
check_xt
check_xt_old
check_xt_old_internal_h
- check_ipt
echo -n " IPSET "
check_ipset
echo
check_lib_dir
-if ! grep -q TC_CONFIG_NO_XT $CONFIG; then
- echo -n "iptables modules directory: "
- check_ipt_lib_dir
-fi
echo -n "libc has setns: "
check_setns
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _IP6TABLES_USER_H
-#define _IP6TABLES_USER_H
-
-#include <netinet/ip.h>
-#include <xtables.h>
-#include <libiptc/libip6tc.h>
-#include <iptables/internal.h>
-
-/* Your shared library should call one of these. */
-extern int do_command6(int argc, char *argv[], char **table,
- struct xtc_handle **handle, bool restore);
-
-extern int for_each_chain6(int (*fn)(const xt_chainlabel, int, struct xtc_handle *), int verbose, int builtinstoo, struct xtc_handle *handle);
-extern int flush_entries6(const xt_chainlabel chain, int verbose, struct xtc_handle *handle);
-extern int delete_chain6(const xt_chainlabel chain, int verbose, struct xtc_handle *handle);
-void print_rule6(const struct ip6t_entry *e, struct xtc_handle *h, const char *chain, int counters);
-
-extern struct xtables_globals ip6tables_globals;
-
-#endif /*_IP6TABLES_USER_H*/
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _IPTABLES_USER_H
-#define _IPTABLES_USER_H
-
-#include <netinet/ip.h>
-#include <xtables.h>
-#include <libiptc/libiptc.h>
-#include <iptables/internal.h>
-
-/* Your shared library should call one of these. */
-extern int do_command4(int argc, char *argv[], char **table,
- struct xtc_handle **handle, bool restore);
-extern int delete_chain4(const xt_chainlabel chain, int verbose,
- struct xtc_handle *handle);
-extern int flush_entries4(const xt_chainlabel chain, int verbose,
- struct xtc_handle *handle);
-extern int for_each_chain4(int (*fn)(const xt_chainlabel, int, struct xtc_handle *),
- int verbose, int builtinstoo, struct xtc_handle *handle);
-extern void print_rule4(const struct ipt_entry *e,
- struct xtc_handle *handle, const char *chain, int counters);
-
-extern struct xtables_globals iptables_globals;
-
-extern struct xtables_globals xtables_globals;
-
-#endif /*_IPTABLES_USER_H*/
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef IPTABLES_INTERNAL_H
-#define IPTABLES_INTERNAL_H 1
-
-#define IPTABLES_VERSION "1.6.0"
-
-/**
- * Program's own name and version.
- */
-extern const char *program_name, *program_version;
-
-extern int line;
-
-#endif /* IPTABLES_INTERNAL_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-/* This is the userspace/kernel interface for Generic IP Chains,
- required for libc6. */
-#ifndef _FWCHAINS_KERNEL_HEADERS_H
-#define _FWCHAINS_KERNEL_HEADERS_H
-
-#include <limits.h>
-
-#include <netinet/ip.h>
-#include <netinet/in.h>
-#include <netinet/ip_icmp.h>
-#include <netinet/tcp.h>
-#include <netinet/udp.h>
-#include <net/if.h>
-#include <sys/types.h>
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LIBIP6TC_H
-#define _LIBIP6TC_H
-/* Library which manipulates firewall rules. Version 0.2. */
-
-#include <linux/types.h>
-#include <libiptc/ipt_kernel_headers.h>
-#ifdef __cplusplus
-# include <climits>
-#else
-# include <limits.h> /* INT_MAX in ip6_tables.h */
-#endif
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <libiptc/xtcshared.h>
-
-#define ip6tc_handle xtc_handle
-#define ip6t_chainlabel xt_chainlabel
-
-#define IP6TC_LABEL_ACCEPT "ACCEPT"
-#define IP6TC_LABEL_DROP "DROP"
-#define IP6TC_LABEL_QUEUE "QUEUE"
-#define IP6TC_LABEL_RETURN "RETURN"
-
-/* Does this chain exist? */
-int ip6tc_is_chain(const char *chain, struct xtc_handle *const handle);
-
-/* Take a snapshot of the rules. Returns NULL on error. */
-struct xtc_handle *ip6tc_init(const char *tablename);
-
-/* Cleanup after ip6tc_init(). */
-void ip6tc_free(struct xtc_handle *h);
-
-/* Iterator functions to run through the chains. Returns NULL at end. */
-const char *ip6tc_first_chain(struct xtc_handle *handle);
-const char *ip6tc_next_chain(struct xtc_handle *handle);
-
-/* Get first rule in the given chain: NULL for empty chain. */
-const struct ip6t_entry *ip6tc_first_rule(const char *chain,
- struct xtc_handle *handle);
-
-/* Returns NULL when rules run out. */
-const struct ip6t_entry *ip6tc_next_rule(const struct ip6t_entry *prev,
- struct xtc_handle *handle);
-
-/* Returns a pointer to the target name of this position. */
-const char *ip6tc_get_target(const struct ip6t_entry *e,
- struct xtc_handle *handle);
-
-/* Is this a built-in chain? */
-int ip6tc_builtin(const char *chain, struct xtc_handle *const handle);
-
-/* Get the policy of a given built-in chain */
-const char *ip6tc_get_policy(const char *chain,
- struct xt_counters *counters,
- struct xtc_handle *handle);
-
-/* These functions return TRUE for OK or 0 and set errno. If errno ==
- 0, it means there was a version error (ie. upgrade libiptc). */
-/* Rule numbers start at 1 for the first rule. */
-
-/* Insert the entry `fw' in chain `chain' into position `rulenum'. */
-int ip6tc_insert_entry(const xt_chainlabel chain,
- const struct ip6t_entry *e,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* Atomically replace rule `rulenum' in `chain' with `fw'. */
-int ip6tc_replace_entry(const xt_chainlabel chain,
- const struct ip6t_entry *e,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* Append entry `fw' to chain `chain'. Equivalent to insert with
- rulenum = length of chain. */
-int ip6tc_append_entry(const xt_chainlabel chain,
- const struct ip6t_entry *e,
- struct xtc_handle *handle);
-
-/* Check whether a matching rule exists */
-int ip6tc_check_entry(const xt_chainlabel chain,
- const struct ip6t_entry *origfw,
- unsigned char *matchmask,
- struct xtc_handle *handle);
-
-/* Delete the first rule in `chain' which matches `fw'. */
-int ip6tc_delete_entry(const xt_chainlabel chain,
- const struct ip6t_entry *origfw,
- unsigned char *matchmask,
- struct xtc_handle *handle);
-
-/* Delete the rule in position `rulenum' in `chain'. */
-int ip6tc_delete_num_entry(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* Check the packet `fw' on chain `chain'. Returns the verdict, or
- NULL and sets errno. */
-const char *ip6tc_check_packet(const xt_chainlabel chain,
- struct ip6t_entry *,
- struct xtc_handle *handle);
-
-/* Flushes the entries in the given chain (ie. empties chain). */
-int ip6tc_flush_entries(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Zeroes the counters in a chain. */
-int ip6tc_zero_entries(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Creates a new chain. */
-int ip6tc_create_chain(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Deletes a chain. */
-int ip6tc_delete_chain(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Renames a chain. */
-int ip6tc_rename_chain(const xt_chainlabel oldname,
- const xt_chainlabel newname,
- struct xtc_handle *handle);
-
-/* Sets the policy on a built-in chain. */
-int ip6tc_set_policy(const xt_chainlabel chain,
- const xt_chainlabel policy,
- struct xt_counters *counters,
- struct xtc_handle *handle);
-
-/* Get the number of references to this chain */
-int ip6tc_get_references(unsigned int *ref, const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* read packet and byte counters for a specific rule */
-struct xt_counters *ip6tc_read_counter(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* zero packet and byte counters for a specific rule */
-int ip6tc_zero_counter(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* set packet and byte counters for a specific rule */
-int ip6tc_set_counter(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xt_counters *counters,
- struct xtc_handle *handle);
-
-/* Makes the actual changes. */
-int ip6tc_commit(struct xtc_handle *handle);
-
-/* Get raw socket. */
-int ip6tc_get_raw_socket(void);
-
-/* Translates errno numbers into more human-readable form than strerror. */
-const char *ip6tc_strerror(int err);
-
-extern void dump_entries6(struct xtc_handle *const);
-
-extern const struct xtc_ops ip6tc_ops;
-
-#endif /* _LIBIP6TC_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LIBIPTC_H
-#define _LIBIPTC_H
-/* Library which manipulates filtering rules. */
-
-#include <linux/types.h>
-#include <libiptc/ipt_kernel_headers.h>
-#ifdef __cplusplus
-# include <climits>
-#else
-# include <limits.h> /* INT_MAX in ip_tables.h */
-#endif
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <libiptc/xtcshared.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define iptc_handle xtc_handle
-#define ipt_chainlabel xt_chainlabel
-
-#define IPTC_LABEL_ACCEPT "ACCEPT"
-#define IPTC_LABEL_DROP "DROP"
-#define IPTC_LABEL_QUEUE "QUEUE"
-#define IPTC_LABEL_RETURN "RETURN"
-
-/* Does this chain exist? */
-int iptc_is_chain(const char *chain, struct xtc_handle *const handle);
-
-/* Take a snapshot of the rules. Returns NULL on error. */
-struct xtc_handle *iptc_init(const char *tablename);
-
-/* Cleanup after iptc_init(). */
-void iptc_free(struct xtc_handle *h);
-
-/* Iterator functions to run through the chains. Returns NULL at end. */
-const char *iptc_first_chain(struct xtc_handle *handle);
-const char *iptc_next_chain(struct xtc_handle *handle);
-
-/* Get first rule in the given chain: NULL for empty chain. */
-const struct ipt_entry *iptc_first_rule(const char *chain,
- struct xtc_handle *handle);
-
-/* Returns NULL when rules run out. */
-const struct ipt_entry *iptc_next_rule(const struct ipt_entry *prev,
- struct xtc_handle *handle);
-
-/* Returns a pointer to the target name of this entry. */
-const char *iptc_get_target(const struct ipt_entry *e,
- struct xtc_handle *handle);
-
-/* Is this a built-in chain? */
-int iptc_builtin(const char *chain, struct xtc_handle *const handle);
-
-/* Get the policy of a given built-in chain */
-const char *iptc_get_policy(const char *chain,
- struct xt_counters *counter,
- struct xtc_handle *handle);
-
-/* These functions return TRUE for OK or 0 and set errno. If errno ==
- 0, it means there was a version error (ie. upgrade libiptc). */
-/* Rule numbers start at 1 for the first rule. */
-
-/* Insert the entry `e' in chain `chain' into position `rulenum'. */
-int iptc_insert_entry(const xt_chainlabel chain,
- const struct ipt_entry *e,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* Atomically replace rule `rulenum' in `chain' with `e'. */
-int iptc_replace_entry(const xt_chainlabel chain,
- const struct ipt_entry *e,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* Append entry `e' to chain `chain'. Equivalent to insert with
- rulenum = length of chain. */
-int iptc_append_entry(const xt_chainlabel chain,
- const struct ipt_entry *e,
- struct xtc_handle *handle);
-
-/* Check whether a mathching rule exists */
-int iptc_check_entry(const xt_chainlabel chain,
- const struct ipt_entry *origfw,
- unsigned char *matchmask,
- struct xtc_handle *handle);
-
-/* Delete the first rule in `chain' which matches `e', subject to
- matchmask (array of length == origfw) */
-int iptc_delete_entry(const xt_chainlabel chain,
- const struct ipt_entry *origfw,
- unsigned char *matchmask,
- struct xtc_handle *handle);
-
-/* Delete the rule in position `rulenum' in `chain'. */
-int iptc_delete_num_entry(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* Check the packet `e' on chain `chain'. Returns the verdict, or
- NULL and sets errno. */
-const char *iptc_check_packet(const xt_chainlabel chain,
- struct ipt_entry *entry,
- struct xtc_handle *handle);
-
-/* Flushes the entries in the given chain (ie. empties chain). */
-int iptc_flush_entries(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Zeroes the counters in a chain. */
-int iptc_zero_entries(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Creates a new chain. */
-int iptc_create_chain(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Deletes a chain. */
-int iptc_delete_chain(const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* Renames a chain. */
-int iptc_rename_chain(const xt_chainlabel oldname,
- const xt_chainlabel newname,
- struct xtc_handle *handle);
-
-/* Sets the policy on a built-in chain. */
-int iptc_set_policy(const xt_chainlabel chain,
- const xt_chainlabel policy,
- struct xt_counters *counters,
- struct xtc_handle *handle);
-
-/* Get the number of references to this chain */
-int iptc_get_references(unsigned int *ref,
- const xt_chainlabel chain,
- struct xtc_handle *handle);
-
-/* read packet and byte counters for a specific rule */
-struct xt_counters *iptc_read_counter(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* zero packet and byte counters for a specific rule */
-int iptc_zero_counter(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xtc_handle *handle);
-
-/* set packet and byte counters for a specific rule */
-int iptc_set_counter(const xt_chainlabel chain,
- unsigned int rulenum,
- struct xt_counters *counters,
- struct xtc_handle *handle);
-
-/* Makes the actual changes. */
-int iptc_commit(struct xtc_handle *handle);
-
-/* Get raw socket. */
-int iptc_get_raw_socket(void);
-
-/* Translates errno numbers into more human-readable form than strerror. */
-const char *iptc_strerror(int err);
-
-extern void dump_entries(struct xtc_handle *const);
-
-extern const struct xtc_ops iptc_ops;
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _LIBIPTC_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LIBXTC_H
-#define _LIBXTC_H
-/* Library which manipulates filtering rules. */
-
-#include <libiptc/ipt_kernel_headers.h>
-#include <linux/netfilter/x_tables.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef XT_MIN_ALIGN
-/* xt_entry has pointers and u_int64_t's in it, so if you align to
- it, you'll also align to any crazy matches and targets someone
- might write */
-#define XT_MIN_ALIGN (__alignof__(struct xt_entry))
-#endif
-
-#ifndef XT_ALIGN
-#define XT_ALIGN(s) (((s) + ((XT_MIN_ALIGN)-1)) & ~((XT_MIN_ALIGN)-1))
-#endif
-
-#define XTC_LABEL_ACCEPT "ACCEPT"
-#define XTC_LABEL_DROP "DROP"
-#define XTC_LABEL_QUEUE "QUEUE"
-#define XTC_LABEL_RETURN "RETURN"
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _LIBXTC_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LIBXTC_SHARED_H
-#define _LIBXTC_SHARED_H 1
-
-typedef char xt_chainlabel[32];
-struct xtc_handle;
-struct xt_counters;
-
-struct xtc_ops {
- int (*commit)(struct xtc_handle *);
- void (*free)(struct xtc_handle *);
- int (*builtin)(const char *, struct xtc_handle *const);
- int (*is_chain)(const char *, struct xtc_handle *const);
- int (*flush_entries)(const xt_chainlabel, struct xtc_handle *);
- int (*create_chain)(const xt_chainlabel, struct xtc_handle *);
- int (*set_policy)(const xt_chainlabel, const xt_chainlabel,
- struct xt_counters *, struct xtc_handle *);
- const char *(*strerror)(int);
-};
-
-#endif /* _LIBXTC_SHARED_H */
+++ /dev/null
-.TH "iptables action in tc" 8 "3 Mar 2016" "iproute2" "Linux"
-
-.SH NAME
-xt - tc iptables action
-.SH SYNOPSIS
-.in +8
-.ti -8
-.BR tc " ... " "action xt \-j"
-.IR TARGET " [ " TARGET_OPTS " ]"
-.SH DESCRIPTION
-The
-.B xt
-action allows one to call arbitrary iptables targets for packets matching the filter
-this action is attached to.
-.SH OPTIONS
-.TP
-.BI -j " TARGET \fR[\fI TARGET_OPTS \fR]"
-Perform a jump to the given iptables target, optionally passing any target
-specific options in
-.IR TARGET_OPTS .
-.SH EXAMPLES
-The following will attach a
-.B u32
-filter to the
-.B ingress
-qdisc matching ICMP replies and using the
-.B xt
-action to make the kernel yell 'PONG' each time:
-
-.RS
-.EX
-tc qdisc add dev eth0 ingress
-tc filter add dev eth0 parent ffff: proto ip u32 \\
- match ip protocol 1 0xff \\
- match ip icmp_type 0 0xff \\
- action xt -j LOG --log-prefix PONG
-.EE
-.RE
-.SH SEE ALSO
-.BR tc (8),
-.BR tc-u32 (8),
-.BR iptables-extensions (8)
ifneq ($(TC_CONFIG_NO_XT),y)
ifeq ($(TC_CONFIG_XT),y)
- TCSO += m_xt.so
TCMODULES += em_ipt.o
ifeq ($(TC_CONFIG_IPSET),y)
TCMODULES += em_ipset.o
endif
- else
- ifeq ($(TC_CONFIG_XT_OLD),y)
- TCSO += m_xt_old.so
- else
- ifeq ($(TC_CONFIG_XT_OLD_H),y)
- CFLAGS += -DTC_CONFIG_XT_H
- TCSO += m_xt_old.so
- else
- TCMODULES += m_ipt.o
- endif
- endif
endif
endif
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * m_ipt.c iptables based targets
- * utilities mostly ripped from iptables <duh, its the linux way>
- *
- * Authors: J Hadi Salim (hadi@cyberus.ca)
- */
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <iptables.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include "utils.h"
-#include "tc_util.h"
-#include <linux/tc_act/tc_ipt.h>
-#include <stdio.h>
-#include <dlfcn.h>
-#include <getopt.h>
-#include <errno.h>
-#include <string.h>
-#include <netdb.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-
-static const char *pname = "tc-ipt";
-static const char *tname = "mangle";
-static const char *pversion = "0.1";
-
-static const char *ipthooks[] = {
- "NF_IP_PRE_ROUTING",
- "NF_IP_LOCAL_IN",
- "NF_IP_FORWARD",
- "NF_IP_LOCAL_OUT",
- "NF_IP_POST_ROUTING",
-};
-
-static struct option original_opts[] = {
- {"jump", 1, 0, 'j'},
- {0, 0, 0, 0}
-};
-
-static struct xtables_target *t_list;
-static struct option *opts = original_opts;
-static unsigned int global_option_offset;
-#define OPTION_OFFSET 256
-
-char *lib_dir;
-
-void
-xtables_register_target(struct xtables_target *me)
-{
- me->next = t_list;
- t_list = me;
-
-}
-
-static void exit_tryhelp(int status)
-{
- fprintf(stderr, "Try `%s -h' or '%s --help' for more information.\n",
- pname, pname);
- exit(status);
-}
-
-static void exit_error(enum xtables_exittype status, char *msg, ...)
-{
- va_list args;
-
- va_start(args, msg);
- fprintf(stderr, "%s v%s: ", pname, pversion);
- vfprintf(stderr, msg, args);
- va_end(args);
- fprintf(stderr, "\n");
- if (status == PARAMETER_PROBLEM)
- exit_tryhelp(status);
- if (status == VERSION_PROBLEM)
- fprintf(stderr,
- "Perhaps iptables or your kernel needs to be upgraded.\n");
- exit(status);
-}
-
-/* stolen from iptables 1.2.11
-They should really have them as a library so i can link to them
-Email them next time i remember
-*/
-
-static void free_opts(struct option *local_opts)
-{
- if (local_opts != original_opts) {
- free(local_opts);
- opts = original_opts;
- global_option_offset = 0;
- }
-}
-
-static struct option *
-merge_options(struct option *oldopts, const struct option *newopts,
- unsigned int *option_offset)
-{
- struct option *merge;
- unsigned int num_old, num_new, i;
-
- for (num_old = 0; oldopts[num_old].name; num_old++);
- for (num_new = 0; newopts[num_new].name; num_new++);
-
- *option_offset = global_option_offset + OPTION_OFFSET;
-
- merge = malloc(sizeof(struct option) * (num_new + num_old + 1));
- memcpy(merge, oldopts, num_old * sizeof(struct option));
- for (i = 0; i < num_new; i++) {
- merge[num_old + i] = newopts[i];
- merge[num_old + i].val += *option_offset;
- }
- memset(merge + num_old + num_new, 0, sizeof(struct option));
-
- return merge;
-}
-
-static void *
-fw_calloc(size_t count, size_t size)
-{
- void *p;
-
- if ((p = (void *) calloc(count, size)) == NULL) {
- perror("iptables: calloc failed");
- exit(1);
- }
- return p;
-}
-
-static struct xtables_target *
-find_t(char *name)
-{
- struct xtables_target *m;
-
- for (m = t_list; m; m = m->next) {
- if (strcmp(m->name, name) == 0)
- return m;
- }
-
- return NULL;
-}
-
-static struct xtables_target *
-get_target_name(const char *name)
-{
- void *handle;
- char *error;
- char *new_name, *lname;
- struct xtables_target *m;
- char path[strlen(lib_dir) + sizeof("/libipt_.so") + strlen(name)];
-
-#ifdef NO_SHARED_LIBS
- return NULL;
-#endif
-
- new_name = calloc(1, strlen(name) + 1);
- lname = calloc(1, strlen(name) + 1);
- if (!new_name)
- exit_error(PARAMETER_PROBLEM, "get_target_name");
- if (!lname)
- exit_error(PARAMETER_PROBLEM, "get_target_name");
-
- strcpy(new_name, name);
- strcpy(lname, name);
-
- if (isupper(lname[0])) {
- int i;
-
- for (i = 0; i < strlen(name); i++) {
- lname[i] = tolower(lname[i]);
- }
- }
-
- if (islower(new_name[0])) {
- int i;
-
- for (i = 0; i < strlen(new_name); i++) {
- new_name[i] = toupper(new_name[i]);
- }
- }
-
- /* try libxt_xx first */
- sprintf(path, "%s/libxt_%s.so", lib_dir, new_name);
- handle = dlopen(path, RTLD_LAZY);
- if (!handle) {
- /* try libipt_xx next */
- sprintf(path, "%s/libipt_%s.so", lib_dir, new_name);
- handle = dlopen(path, RTLD_LAZY);
-
- if (!handle) {
- sprintf(path, "%s/libxt_%s.so", lib_dir, lname);
- handle = dlopen(path, RTLD_LAZY);
- }
-
- if (!handle) {
- sprintf(path, "%s/libipt_%s.so", lib_dir, lname);
- handle = dlopen(path, RTLD_LAZY);
- }
- /* ok, lets give up .. */
- if (!handle) {
- fputs(dlerror(), stderr);
- printf("\n");
- free(new_name);
- free(lname);
- return NULL;
- }
- }
-
- m = dlsym(handle, new_name);
- if ((error = dlerror()) != NULL) {
- m = (struct xtables_target *) dlsym(handle, lname);
- if ((error = dlerror()) != NULL) {
- m = find_t(new_name);
- if (m == NULL) {
- m = find_t(lname);
- if (m == NULL) {
- fputs(error, stderr);
- fprintf(stderr, "\n");
- dlclose(handle);
- free(new_name);
- free(lname);
- return NULL;
- }
- }
- }
- }
-
- free(new_name);
- free(lname);
- return m;
-}
-
-static void set_revision(char *name, u_int8_t revision)
-{
- /* Old kernel sources don't have ".revision" field,
- * but we stole a byte from name. */
- name[IPT_FUNCTION_MAXNAMELEN - 2] = '\0';
- name[IPT_FUNCTION_MAXNAMELEN - 1] = revision;
-}
-
-/*
- * we may need to check for version mismatch
-*/
-static int build_st(struct xtables_target *target, struct ipt_entry_target *t)
-{
- if (target) {
- size_t size;
-
- size =
- XT_ALIGN(sizeof(struct ipt_entry_target)) + target->size;
-
- if (t == NULL) {
- target->t = fw_calloc(1, size);
- target->t->u.target_size = size;
-
- if (target->init != NULL)
- target->init(target->t);
- set_revision(target->t->u.user.name, target->revision);
- } else {
- target->t = t;
- }
- strcpy(target->t->u.user.name, target->name);
- return 0;
- }
-
- return -1;
-}
-
-static int parse_ipt(struct action_util *a, int *argc_p,
- char ***argv_p, int tca_id, struct nlmsghdr *n)
-{
- struct xtables_target *m = NULL;
- struct ipt_entry fw;
- struct rtattr *tail;
- int c;
- int rargc = *argc_p;
- char **argv = *argv_p;
- int argc = 0, iargc = 0;
- char k[FILTER_NAMESZ];
- int size = 0;
- int iok = 0, ok = 0;
- __u32 hook = 0, index = 0;
-
- lib_dir = getenv("IPTABLES_LIB_DIR");
- if (!lib_dir)
- lib_dir = IPT_LIB_DIR;
-
- {
- int i;
-
- for (i = 0; i < rargc; i++) {
- if (!argv[i] || strcmp(argv[i], "action") == 0)
- break;
- }
- iargc = argc = i;
- }
-
- if (argc <= 2) {
- fprintf(stderr, "bad arguments to ipt %d vs %d\n", argc, rargc);
- return -1;
- }
-
- while (1) {
- c = getopt_long(argc, argv, "j:", opts, NULL);
- if (c == -1)
- break;
- switch (c) {
- case 'j':
- m = get_target_name(optarg);
- if (m != NULL) {
-
- if (build_st(m, NULL) < 0) {
- printf(" %s error\n", m->name);
- return -1;
- }
- opts =
- merge_options(opts, m->extra_opts,
- &m->option_offset);
- } else {
- fprintf(stderr, " failed to find target %s\n\n", optarg);
- return -1;
- }
- ok++;
- break;
-
- default:
- memset(&fw, 0, sizeof(fw));
- if (m) {
- m->parse(c - m->option_offset, argv, 0,
- &m->tflags, NULL, &m->t);
- } else {
- fprintf(stderr, " failed to find target %s\n\n", optarg);
- return -1;
-
- }
- ok++;
- break;
-
- }
- }
-
- if (iargc > optind) {
- if (matches(argv[optind], "index") == 0) {
- if (get_u32(&index, argv[optind + 1], 10)) {
- fprintf(stderr, "Illegal \"index\"\n");
- free_opts(opts);
- return -1;
- }
- iok++;
-
- optind += 2;
- }
- }
-
- if (!ok && !iok) {
- fprintf(stderr, " ipt Parser BAD!! (%s)\n", *argv);
- return -1;
- }
-
- /* check that we passed the correct parameters to the target */
- if (m)
- m->final_check(m->tflags);
-
- {
- struct tcmsg *t = NLMSG_DATA(n);
-
- if (t->tcm_parent != TC_H_ROOT
- && t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
- hook = NF_IP_PRE_ROUTING;
- } else {
- hook = NF_IP_POST_ROUTING;
- }
- }
-
- tail = addattr_nest(n, MAX_MSG, tca_id);
- fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
- fprintf(stdout, "\ttarget: ");
-
- if (m)
- m->print(NULL, m->t, 0);
- fprintf(stdout, " index %d\n", index);
-
- if (strlen(tname) > 16) {
- size = 16;
- k[15] = 0;
- } else {
- size = 1 + strlen(tname);
- }
- strncpy(k, tname, size);
-
- addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
- addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
- addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
- if (m)
- addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
- addattr_nest_end(n, tail);
-
- argc -= optind;
- argv += optind;
- *argc_p = rargc - iargc;
- *argv_p = argv;
-
- optind = 0;
- free_opts(opts);
- /* Clear flags if target will be used again */
- m->tflags = 0;
- m->used = 0;
- /* Free allocated memory */
- free(m->t);
-
-
- return 0;
-
-}
-
-static int
-print_ipt(struct action_util *au, FILE * f, struct rtattr *arg)
-{
- struct rtattr *tb[TCA_IPT_MAX + 1];
- struct ipt_entry_target *t = NULL;
- struct xtables_target *m;
- __u32 hook;
-
- if (arg == NULL)
- return 0;
-
- lib_dir = getenv("IPTABLES_LIB_DIR");
- if (!lib_dir)
- lib_dir = IPT_LIB_DIR;
-
- parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
-
- if (tb[TCA_IPT_TABLE] == NULL) {
- fprintf(stderr, "Missing ipt table name, assuming mangle\n");
- } else {
- fprintf(f, "tablename: %s ",
- rta_getattr_str(tb[TCA_IPT_TABLE]));
- }
-
- if (tb[TCA_IPT_HOOK] == NULL) {
- fprintf(stderr, "Missing ipt hook name\n ");
- return -1;
- }
-
- hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
- fprintf(f, " hook: %s\n", ipthooks[hook]);
-
- if (tb[TCA_IPT_TARG] == NULL) {
- fprintf(stderr, "Missing ipt target parameters\n");
- return -1;
- }
-
-
- t = RTA_DATA(tb[TCA_IPT_TARG]);
- m = get_target_name(t->u.user.name);
- if (m != NULL) {
- if (build_st(m, t) < 0) {
- fprintf(stderr, " %s error\n", m->name);
- return -1;
- }
-
- opts =
- merge_options(opts, m->extra_opts,
- &m->option_offset);
- } else {
- fprintf(stderr, " failed to find target %s\n\n",
- t->u.user.name);
- return -1;
- }
-
- fprintf(f, "\ttarget ");
- m->print(NULL, m->t, 0);
- if (tb[TCA_IPT_INDEX] == NULL) {
- fprintf(stderr, "Missing ipt target index\n");
- } else {
- __u32 index;
-
- index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
- fprintf(f, "\n\tindex %u", index);
- }
-
- if (tb[TCA_IPT_CNT]) {
- struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);
-
- fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
- }
- if (show_stats) {
- if (tb[TCA_IPT_TM]) {
- struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
-
- print_tm(f, tm);
- }
- }
- fprintf(f, "\n");
-
- free_opts(opts);
-
- return 0;
-}
-
-struct action_util ipt_action_util = {
- .id = "ipt",
- .parse_aopt = parse_ipt,
- .print_aopt = print_ipt,
-};
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * m_xt.c xtables based targets
- * utilities mostly ripped from iptables <duh, its the linux way>
- *
- * Authors: J Hadi Salim (hadi@cyberus.ca)
- */
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <net/if.h>
-#include <limits.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <xtables.h>
-#include "utils.h"
-#include "tc_util.h"
-#include <linux/tc_act/tc_ipt.h>
-#include <stdio.h>
-#include <dlfcn.h>
-#include <getopt.h>
-#include <errno.h>
-#include <string.h>
-#include <netdb.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-#ifndef XT_LIB_DIR
-# define XT_LIB_DIR "/lib/xtables"
-#endif
-
-#ifndef __ALIGN_KERNEL
-#define __ALIGN_KERNEL(x, a) \
- __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
-#define __ALIGN_KERNEL_MASK(x, mask) \
- (((x) + (mask)) & ~(mask))
-#endif
-
-#ifndef ALIGN
-#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
-#endif
-
-static const char *tname = "mangle";
-
-char *lib_dir;
-
-static const char * const ipthooks[] = {
- "NF_IP_PRE_ROUTING",
- "NF_IP_LOCAL_IN",
- "NF_IP_FORWARD",
- "NF_IP_LOCAL_OUT",
- "NF_IP_POST_ROUTING",
-};
-
-static struct option original_opts[] = {
- {
- .name = "jump",
- .has_arg = 1,
- .val = 'j'
- },
- {0, 0, 0, 0}
-};
-
-static struct xtables_globals tcipt_globals = {
- .option_offset = 0,
- .program_name = "tc-ipt",
- .program_version = "0.2",
- .orig_opts = original_opts,
- .opts = original_opts,
- .exit_err = NULL,
-#if XTABLES_VERSION_CODE >= 11
- .compat_rev = xtables_compatible_revision,
-#endif
-};
-
-/*
- * we may need to check for version mismatch
-*/
-static int
-build_st(struct xtables_target *target, struct xt_entry_target *t)
-{
-
- size_t size =
- XT_ALIGN(sizeof(struct xt_entry_target)) + target->size;
-
- if (t == NULL) {
- target->t = xtables_calloc(1, size);
- target->t->u.target_size = size;
- strncpy(target->t->u.user.name, target->name,
- sizeof(target->t->u.user.name) - 1);
- target->t->u.user.revision = target->revision;
-
- if (target->init != NULL)
- target->init(target->t);
- } else {
- target->t = t;
- }
- return 0;
-
-}
-
-static void set_lib_dir(void)
-{
-
- lib_dir = getenv("XTABLES_LIBDIR");
- if (!lib_dir) {
- lib_dir = getenv("IPTABLES_LIB_DIR");
- if (lib_dir)
- fprintf(stderr, "using deprecated IPTABLES_LIB_DIR\n");
- }
- if (lib_dir == NULL)
- lib_dir = XT_LIB_DIR;
-
-}
-
-static int get_xtables_target_opts(struct xtables_globals *globals,
- struct xtables_target *m)
-{
- struct option *opts;
-
-#if XTABLES_VERSION_CODE >= 6
- opts = xtables_options_xfrm(globals->orig_opts,
- globals->opts,
- m->x6_options,
- &m->option_offset);
-#else
- opts = xtables_merge_options(globals->opts,
- m->extra_opts,
- &m->option_offset);
-#endif
- if (!opts)
- return -1;
- globals->opts = opts;
- return 0;
-}
-
-static int parse_ipt(struct action_util *a, int *argc_p,
- char ***argv_p, int tca_id, struct nlmsghdr *n)
-{
- struct xtables_target *m = NULL;
-#if XTABLES_VERSION_CODE >= 6
- struct ipt_entry fw = {};
-#endif
- struct rtattr *tail;
-
- int c;
- char **argv = *argv_p;
- int argc;
- char k[FILTER_NAMESZ];
- int size = 0;
- int iok = 0, ok = 0;
- __u32 hook = 0, index = 0;
-
- /* copy tcipt_globals because .opts will be modified by iptables */
- struct xtables_globals tmp_tcipt_globals = tcipt_globals;
-
- xtables_init_all(&tmp_tcipt_globals, NFPROTO_IPV4);
- set_lib_dir();
-
- /* parse only up until the next action */
- for (argc = 0; argc < *argc_p; argc++) {
- if (!argv[argc] || !strcmp(argv[argc], "action"))
- break;
- }
-
- if (argc <= 2) {
- fprintf(stderr,
- "too few arguments for xt, need at least '-j <target>'\n");
- return -1;
- }
-
- while (1) {
- c = getopt_long(argc, argv, "j:", tmp_tcipt_globals.opts, NULL);
- if (c == -1)
- break;
- switch (c) {
- case 'j':
- m = xtables_find_target(optarg, XTF_TRY_LOAD);
- if (!m) {
- fprintf(stderr,
- " failed to find target %s\n\n",
- optarg);
- return -1;
- }
-
- if (build_st(m, NULL) < 0) {
- printf(" %s error\n", m->name);
- return -1;
- }
-
- if (get_xtables_target_opts(&tmp_tcipt_globals,
- m) < 0) {
- fprintf(stderr,
- " failed to find additional options for target %s\n\n",
- optarg);
- return -1;
- }
- ok++;
- break;
-
- default:
-#if XTABLES_VERSION_CODE >= 6
- if (m != NULL && m->x6_parse != NULL) {
- xtables_option_tpcall(c, argv, 0, m, &fw);
-#else
- if (m != NULL && m->parse != NULL) {
- m->parse(c - m->option_offset, argv, 0,
- &m->tflags, NULL, &m->t);
-#endif
- } else {
- fprintf(stderr,
- "failed to find target %s\n\n", optarg);
- return -1;
-
- }
- ok++;
- break;
- }
- }
-
- if (argc > optind) {
- if (matches(argv[optind], "index") == 0) {
- if (get_u32(&index, argv[optind + 1], 10)) {
- fprintf(stderr, "Illegal \"index\"\n");
- xtables_free_opts(1);
- return -1;
- }
- iok++;
-
- optind += 2;
- }
- }
-
- if (!ok && !iok) {
- fprintf(stderr, " ipt Parser BAD!! (%s)\n", *argv);
- return -1;
- }
-
- /* check that we passed the correct parameters to the target */
-#if XTABLES_VERSION_CODE >= 6
- if (m)
- xtables_option_tfcall(m);
-#else
- if (m && m->final_check)
- m->final_check(m->tflags);
-#endif
-
- {
- struct tcmsg *t = NLMSG_DATA(n);
-
- if (t->tcm_parent != TC_H_ROOT
- && t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
- hook = NF_IP_PRE_ROUTING;
- } else {
- hook = NF_IP_POST_ROUTING;
- }
- }
-
- tail = addattr_nest(n, MAX_MSG, tca_id);
- fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
- fprintf(stdout, "\ttarget: ");
-
- if (m) {
- if (m->print)
- m->print(NULL, m->t, 0);
- else
- printf("%s ", m->name);
- }
- fprintf(stdout, " index %d\n", index);
-
- if (strlen(tname) >= 16) {
- size = 15;
- k[15] = 0;
- } else {
- size = 1 + strlen(tname);
- }
- strncpy(k, tname, size);
-
- addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
- addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
- addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
- if (m)
- addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
- addattr_nest_end(n, tail);
-
- argv += optind;
- *argc_p -= argc;
- *argv_p = argv;
-
- optind = 0;
- xtables_free_opts(1);
-
- if (m) {
- /* Clear flags if target will be used again */
- m->tflags = 0;
- m->used = 0;
- /* Free allocated memory */
- free(m->t);
- }
-
- return 0;
-
-}
-
-static int
-print_ipt(struct action_util *au, FILE *f, struct rtattr *arg)
-{
- struct xtables_target *m;
- struct rtattr *tb[TCA_IPT_MAX + 1];
- struct xt_entry_target *t = NULL;
- __u32 hook;
-
- if (arg == NULL)
- return 0;
-
- /* copy tcipt_globals because .opts will be modified by iptables */
- struct xtables_globals tmp_tcipt_globals = tcipt_globals;
-
- xtables_init_all(&tmp_tcipt_globals, NFPROTO_IPV4);
- set_lib_dir();
-
- parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
-
- if (tb[TCA_IPT_TABLE] == NULL) {
- fprintf(stderr, "Missing ipt table name, assuming mangle\n");
- } else {
- fprintf(f, "tablename: %s ",
- rta_getattr_str(tb[TCA_IPT_TABLE]));
- }
-
- if (tb[TCA_IPT_HOOK] == NULL) {
- fprintf(stderr, "Missing ipt hook name\n ");
- return -1;
- }
-
- if (tb[TCA_IPT_TARG] == NULL) {
- fprintf(stderr, "Missing ipt target parameters\n");
- return -1;
- }
-
- hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
- fprintf(f, " hook: %s\n", ipthooks[hook]);
-
- t = RTA_DATA(tb[TCA_IPT_TARG]);
- m = xtables_find_target(t->u.user.name, XTF_TRY_LOAD);
- if (!m) {
- fprintf(stderr, " failed to find target %s\n\n",
- t->u.user.name);
- return -1;
- }
- if (build_st(m, t) < 0) {
- fprintf(stderr, " %s error\n", m->name);
- return -1;
- }
-
- if (get_xtables_target_opts(&tmp_tcipt_globals, m) < 0) {
- fprintf(stderr,
- " failed to find additional options for target %s\n\n",
- t->u.user.name);
- return -1;
- }
- fprintf(f, "\ttarget ");
- m->print(NULL, m->t, 0);
- if (tb[TCA_IPT_INDEX] == NULL) {
- fprintf(f, " [NULL ipt target index ]\n");
- } else {
- __u32 index;
-
- index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
- fprintf(f, "\n\tindex %u", index);
- }
-
- if (tb[TCA_IPT_CNT]) {
- struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);
-
- fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
- }
- if (show_stats) {
- if (tb[TCA_IPT_TM]) {
- struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
-
- print_tm(f, tm);
- }
- }
- print_nl();
-
- xtables_free_opts(1);
-
- return 0;
-}
-
-struct action_util xt_action_util = {
- .id = "xt",
- .parse_aopt = parse_ipt,
- .print_aopt = print_ipt,
-};
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * m_xt.c xtables based targets
- * utilities mostly ripped from iptables <duh, its the linux way>
- *
- * Authors: J Hadi Salim (hadi@cyberus.ca)
- */
-
-/*XXX: in the future (xtables 1.4.3?) get rid of everything tagged
- * as TC_CONFIG_XT_H */
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <net/if.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <xtables.h>
-#include "utils.h"
-#include "tc_util.h"
-#include <linux/tc_act/tc_ipt.h>
-#include <stdio.h>
-#include <getopt.h>
-#include <errno.h>
-#include <string.h>
-#include <netdb.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <stdarg.h>
-#include <limits.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-#ifdef TC_CONFIG_XT_H
-#include "xt-internal.h"
-#endif
-
-#ifndef ALIGN
-#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1)
-#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
-#endif
-
-static const char *pname = "tc-ipt";
-static const char *tname = "mangle";
-static const char *pversion = "0.2";
-
-static const char *ipthooks[] = {
- "NF_IP_PRE_ROUTING",
- "NF_IP_LOCAL_IN",
- "NF_IP_FORWARD",
- "NF_IP_LOCAL_OUT",
- "NF_IP_POST_ROUTING",
-};
-
-static struct option original_opts[] = {
- {"jump", 1, 0, 'j'},
- {0, 0, 0, 0}
-};
-
-static struct option *opts = original_opts;
-static unsigned int global_option_offset;
-char *lib_dir;
-const char *program_version = XTABLES_VERSION;
-const char *program_name = "tc-ipt";
-struct afinfo afinfo = {
- .family = AF_INET,
- .libprefix = "libxt_",
- .ipproto = IPPROTO_IP,
- .kmod = "ip_tables",
- .so_rev_target = IPT_SO_GET_REVISION_TARGET,
-};
-
-
-#define OPTION_OFFSET 256
-
-/*XXX: TC_CONFIG_XT_H */
-static void free_opts(struct option *local_opts)
-{
- if (local_opts != original_opts) {
- free(local_opts);
- opts = original_opts;
- global_option_offset = 0;
- }
-}
-
-/*XXX: TC_CONFIG_XT_H */
-static struct option *
-merge_options(struct option *oldopts, const struct option *newopts,
- unsigned int *option_offset)
-{
- struct option *merge;
- unsigned int num_old, num_new, i;
-
- for (num_old = 0; oldopts[num_old].name; num_old++);
- for (num_new = 0; newopts[num_new].name; num_new++);
-
- *option_offset = global_option_offset + OPTION_OFFSET;
-
- merge = malloc(sizeof(struct option) * (num_new + num_old + 1));
- memcpy(merge, oldopts, num_old * sizeof(struct option));
- for (i = 0; i < num_new; i++) {
- merge[num_old + i] = newopts[i];
- merge[num_old + i].val += *option_offset;
- }
- memset(merge + num_old + num_new, 0, sizeof(struct option));
-
- return merge;
-}
-
-
-/*XXX: TC_CONFIG_XT_H */
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-/*XXX: TC_CONFIG_XT_H */
-int
-check_inverse(const char option[], int *invert, int *my_optind, int argc)
-{
- if (option && strcmp(option, "!") == 0) {
- if (*invert)
- exit_error(PARAMETER_PROBLEM,
- "Multiple `!' flags not allowed");
- *invert = TRUE;
- if (my_optind != NULL) {
- ++*my_optind;
- if (argc && *my_optind > argc)
- exit_error(PARAMETER_PROBLEM,
- "no argument following `!'");
- }
-
- return TRUE;
- }
- return FALSE;
-}
-
-/*XXX: TC_CONFIG_XT_H */
-void exit_error(enum exittype status, const char *msg, ...)
-{
- va_list args;
-
- va_start(args, msg);
- fprintf(stderr, "%s v%s: ", pname, pversion);
- vfprintf(stderr, msg, args);
- va_end(args);
- fprintf(stderr, "\n");
- /* On error paths, make sure that we don't leak memory */
- exit(status);
-}
-
-/*XXX: TC_CONFIG_XT_H */
-static void set_revision(char *name, u_int8_t revision)
-{
- /* Old kernel sources don't have ".revision" field,
- * but we stole a byte from name. */
- name[IPT_FUNCTION_MAXNAMELEN - 2] = '\0';
- name[IPT_FUNCTION_MAXNAMELEN - 1] = revision;
-}
-
-/*
- * we may need to check for version mismatch
-*/
-int
-build_st(struct xtables_target *target, struct xt_entry_target *t)
-{
-
- size_t size =
- XT_ALIGN(sizeof(struct xt_entry_target)) + target->size;
-
- if (t == NULL) {
- target->t = fw_calloc(1, size);
- target->t->u.target_size = size;
- strcpy(target->t->u.user.name, target->name);
- set_revision(target->t->u.user.name, target->revision);
-
- if (target->init != NULL)
- target->init(target->t);
- } else {
- target->t = t;
- }
- return 0;
-
-}
-
-inline void set_lib_dir(void)
-{
-
- lib_dir = getenv("XTABLES_LIBDIR");
- if (!lib_dir) {
- lib_dir = getenv("IPTABLES_LIB_DIR");
- if (lib_dir)
- fprintf(stderr, "using deprecated IPTABLES_LIB_DIR\n");
- }
- if (lib_dir == NULL)
- lib_dir = XT_LIB_DIR;
-
-}
-
-static int parse_ipt(struct action_util *a, int *argc_p,
- char ***argv_p, int tca_id, struct nlmsghdr *n)
-{
- struct xtables_target *m = NULL;
- struct ipt_entry fw;
- struct rtattr *tail;
- int c;
- int rargc = *argc_p;
- char **argv = *argv_p;
- int argc = 0, iargc = 0;
- char k[FILTER_NAMESZ];
- int size = 0;
- int iok = 0, ok = 0;
- __u32 hook = 0, index = 0;
-
- set_lib_dir();
-
- {
- int i;
-
- for (i = 0; i < rargc; i++) {
- if (!argv[i] || strcmp(argv[i], "action") == 0)
- break;
- }
- iargc = argc = i;
- }
-
- if (argc <= 2) {
- fprintf(stderr, "bad arguments to ipt %d vs %d\n", argc, rargc);
- return -1;
- }
-
- while (1) {
- c = getopt_long(argc, argv, "j:", opts, NULL);
- if (c == -1)
- break;
- switch (c) {
- case 'j':
- m = find_target(optarg, TRY_LOAD);
- if (m != NULL) {
-
- if (build_st(m, NULL) < 0) {
- printf(" %s error\n", m->name);
- return -1;
- }
- opts =
- merge_options(opts, m->extra_opts,
- &m->option_offset);
- } else {
- fprintf(stderr, " failed to find target %s\n\n", optarg);
- return -1;
- }
- ok++;
- break;
-
- default:
- memset(&fw, 0, sizeof(fw));
- if (m) {
- m->parse(c - m->option_offset, argv, 0,
- &m->tflags, NULL, &m->t);
- } else {
- fprintf(stderr, " failed to find target %s\n\n", optarg);
- return -1;
-
- }
- ok++;
- break;
-
- }
- }
-
- if (iargc > optind) {
- if (matches(argv[optind], "index") == 0) {
- if (get_u32(&index, argv[optind + 1], 10)) {
- fprintf(stderr, "Illegal \"index\"\n");
- free_opts(opts);
- return -1;
- }
- iok++;
-
- optind += 2;
- }
- }
-
- if (!ok && !iok) {
- fprintf(stderr, " ipt Parser BAD!! (%s)\n", *argv);
- return -1;
- }
-
- /* check that we passed the correct parameters to the target */
- if (m)
- m->final_check(m->tflags);
-
- {
- struct tcmsg *t = NLMSG_DATA(n);
-
- if (t->tcm_parent != TC_H_ROOT
- && t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
- hook = NF_IP_PRE_ROUTING;
- } else {
- hook = NF_IP_POST_ROUTING;
- }
- }
-
- tail = addattr_nest(n, MAX_MSG, tca_id);
- fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
- fprintf(stdout, "\ttarget: ");
-
- if (m)
- m->print(NULL, m->t, 0);
- fprintf(stdout, " index %d\n", index);
-
- if (strlen(tname) > 16) {
- size = 16;
- k[15] = 0;
- } else {
- size = 1 + strlen(tname);
- }
- strncpy(k, tname, size);
-
- addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
- addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
- addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
- if (m)
- addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
- addattr_nest_end(n, tail);
-
- argc -= optind;
- argv += optind;
- *argc_p = rargc - iargc;
- *argv_p = argv;
-
- optind = 0;
- free_opts(opts);
- /* Clear flags if target will be used again */
- m->tflags = 0;
- m->used = 0;
- /* Free allocated memory */
- free(m->t);
-
-
- return 0;
-
-}
-
-static int
-print_ipt(struct action_util *au, FILE * f, struct rtattr *arg)
-{
- struct rtattr *tb[TCA_IPT_MAX + 1];
- struct xt_entry_target *t = NULL;
- struct xtables_target *m;
- __u32 hook;
-
- if (arg == NULL)
- return 0;
-
- set_lib_dir();
-
- parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
-
- if (tb[TCA_IPT_TABLE] == NULL) {
- fprintf(stderr, "Missing ipt table name, assuming mangle\n");
- } else {
- fprintf(f, "tablename: %s ",
- rta_getattr_str(tb[TCA_IPT_TABLE]));
- }
-
- if (tb[TCA_IPT_HOOK] == NULL) {
- fprintf(stderr, "Missing ipt hook name\n");
- return -1;
- }
-
- if (tb[TCA_IPT_TARG] == NULL) {
- fprintf(stderr, "Missing ipt target parameters\n");
- return -1;
- }
-
- hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
- fprintf(f, " hook: %s\n", ipthooks[hook]);
-
- t = RTA_DATA(tb[TCA_IPT_TARG]);
- m = find_target(t->u.user.name, TRY_LOAD);
- if (m != NULL) {
- if (build_st(m, t) < 0) {
- fprintf(stderr, " %s error\n", m->name);
- return -1;
- }
-
- opts =
- merge_options(opts, m->extra_opts,
- &m->option_offset);
- } else {
- fprintf(stderr, " failed to find target %s\n\n",
- t->u.user.name);
- return -1;
- }
- fprintf(f, "\ttarget ");
- m->print(NULL, m->t, 0);
- if (tb[TCA_IPT_INDEX] == NULL) {
- fprintf(f, " [NULL ipt target index ]\n");
- } else {
- __u32 index;
-
- index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
- fprintf(f, "\n\tindex %u", index);
- }
-
- if (tb[TCA_IPT_CNT]) {
- struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);
-
- fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
- }
- if (show_stats) {
- if (tb[TCA_IPT_TM]) {
- struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
-
- print_tm(f, tm);
- }
- }
- fprintf(f, "\n");
-
- free_opts(opts);
-
- return 0;
-}
-
-struct action_util ipt_action_util = {
- .id = "ipt",
- .parse_aopt = parse_ipt,
- .print_aopt = print_ipt,
-};
projects / thirdparty / iproute2.git / commitdiff
