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Message-ID: <CAM0EoMmH-5Afhe1DvhSJzMhsyx=y7AW+FnhR8p3YbveP3UigXA@mail.gmail.com>
Date: Wed, 27 Dec 2023 12:25:24 -0500
From: Jamal Hadi Salim <jhs@...atatu.com>
To: Stephen Hemminger <stephen@...workplumber.org>
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH iproute2-next v2] remove support for iptables action
On Tue, Dec 26, 2023 at 1:25 PM Stephen Hemminger
<stephen@...workplumber.org> wrote:
>
> There is an open upstream kernel patch to remove ipt action from
> kernel. This is corresponding iproute2 change.
>
> - Remove support fot ipt and xt in tc.
> - Remove no longer used header files.
> - Update man pages.
>
> Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
> ---
> configure | 34 --
> include/ip6tables.h | 21 --
> include/iptables.h | 26 --
> include/iptables/internal.h | 14 -
> include/libiptc/ipt_kernel_headers.h | 16 -
> include/libiptc/libip6tc.h | 162 ---------
> include/libiptc/libiptc.h | 173 ---------
> include/libiptc/libxtc.h | 34 --
> include/libiptc/xtcshared.h | 21 --
> man/man8/tc-xt.8 | 42 ---
> tc/Makefile | 12 -
> tc/m_ipt.c | 511 ---------------------------
> tc/m_xt.c | 400 ---------------------
> tc/m_xt_old.c | 432 ----------------------
Does em_ipt need the m_xt*.c? Florian/Eyal can comment. Otherwise,
Reviewed-by: Jamal Hadi Salim <jhs@...atatu.com>
cheers,
jamal
> 14 files changed, 1898 deletions(-)
> delete mode 100644 include/ip6tables.h
> delete mode 100644 include/iptables.h
> delete mode 100644 include/iptables/internal.h
> delete mode 100644 include/libiptc/ipt_kernel_headers.h
> delete mode 100644 include/libiptc/libip6tc.h
> delete mode 100644 include/libiptc/libiptc.h
> delete mode 100644 include/libiptc/libxtc.h
> delete mode 100644 include/libiptc/xtcshared.h
> delete mode 100644 man/man8/tc-xt.8
> delete mode 100644 tc/m_ipt.c
> delete mode 100644 tc/m_xt.c
> delete mode 100644 tc/m_xt_old.c
>
> diff --git a/configure b/configure
> index 78bc52c008f8..722a6a06e675 100755
> --- a/configure
> +++ b/configure
> @@ -160,35 +160,6 @@ check_lib_dir()
> 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
> @@ -626,7 +597,6 @@ if ! grep -q TC_CONFIG_NO_XT $CONFIG; then
> check_xt
> check_xt_old
> check_xt_old_internal_h
> - check_ipt
>
> echo -n " IPSET "
> check_ipset
> @@ -634,10 +604,6 @@ fi
>
> 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
> diff --git a/include/ip6tables.h b/include/ip6tables.h
> deleted file mode 100644
> index bfb286826af5..000000000000
> --- a/include/ip6tables.h
> +++ /dev/null
> @@ -1,21 +0,0 @@
> -/* 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*/
> diff --git a/include/iptables.h b/include/iptables.h
> deleted file mode 100644
> index eb91f2918658..000000000000
> --- a/include/iptables.h
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -/* 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*/
> diff --git a/include/iptables/internal.h b/include/iptables/internal.h
> deleted file mode 100644
> index 1fd137250031..000000000000
> --- a/include/iptables/internal.h
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -/* 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 */
> diff --git a/include/libiptc/ipt_kernel_headers.h b/include/libiptc/ipt_kernel_headers.h
> deleted file mode 100644
> index 3d2a2a3277e9..000000000000
> --- a/include/libiptc/ipt_kernel_headers.h
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -/* 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
> diff --git a/include/libiptc/libip6tc.h b/include/libiptc/libip6tc.h
> deleted file mode 100644
> index cd588de7a96d..000000000000
> --- a/include/libiptc/libip6tc.h
> +++ /dev/null
> @@ -1,162 +0,0 @@
> -/* 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 */
> diff --git a/include/libiptc/libiptc.h b/include/libiptc/libiptc.h
> deleted file mode 100644
> index 1bfe4e18e73e..000000000000
> --- a/include/libiptc/libiptc.h
> +++ /dev/null
> @@ -1,173 +0,0 @@
> -/* 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 */
> diff --git a/include/libiptc/libxtc.h b/include/libiptc/libxtc.h
> deleted file mode 100644
> index 1e9596a6e01c..000000000000
> --- a/include/libiptc/libxtc.h
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -/* 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 */
> diff --git a/include/libiptc/xtcshared.h b/include/libiptc/xtcshared.h
> deleted file mode 100644
> index 278a58f4eb9f..000000000000
> --- a/include/libiptc/xtcshared.h
> +++ /dev/null
> @@ -1,21 +0,0 @@
> -/* 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 */
> diff --git a/man/man8/tc-xt.8 b/man/man8/tc-xt.8
> deleted file mode 100644
> index f6dc5addf254..000000000000
> --- a/man/man8/tc-xt.8
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -.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)
> diff --git a/tc/Makefile b/tc/Makefile
> index 9cb0d0edde93..b5e853d8c56b 100644
> --- a/tc/Makefile
> +++ b/tc/Makefile
> @@ -82,22 +82,10 @@ TCSO :=
>
> 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
>
> diff --git a/tc/m_ipt.c b/tc/m_ipt.c
> deleted file mode 100644
> index 2538f769b0ee..000000000000
> --- a/tc/m_ipt.c
> +++ /dev/null
> @@ -1,511 +0,0 @@
> -/* 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@...erus.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,
> -};
> diff --git a/tc/m_xt.c b/tc/m_xt.c
> deleted file mode 100644
> index 658084378124..000000000000
> --- a/tc/m_xt.c
> +++ /dev/null
> @@ -1,400 +0,0 @@
> -/* 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@...erus.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,
> -};
> diff --git a/tc/m_xt_old.c b/tc/m_xt_old.c
> deleted file mode 100644
> index 9987d606a59c..000000000000
> --- a/tc/m_xt_old.c
> +++ /dev/null
> @@ -1,432 +0,0 @@
> -/* 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@...erus.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,
> -};
> --
> 2.43.0
>
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