2e783b227766 ebt_ip: add support for matching IGMP type
b5fbb8d786c9 ebt_ip: add support for matching ICMP type and code
c5e5b784fd1a Move ICMP type handling functions from ebt_ip6 to useful_functions.c
11da52177196 include: sync linux/netfilter_bridge/ebt_ip.h with kernel

Note: the new features require at least kernel 4.17 or backported patches.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

068ba95 Fix locking if LOCKDIR does not exist

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

6a82659 Use flock() for --concurrent option
73c2371 ebtables: extensions: Constify option struct

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

As git.netfilter.org seems to support HTTPS, use that instead of HTTP
which is insecure, or GIT which is blocked on many corporate networks.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

Refreshed patches

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>

Replace *MD5SUM with *HASH, replace MD5 hashes with SHA256

Signed-off-by: Felix Fietkau <nbd@nbd.name>

Signed-off-by: Felix Fietkau <nbd@nbd.name>

The ebtables code relies on the `-nostartfiles` linker argument to execute the
extension modules' `_init()` functions automatically which is not working
reliably across all supported targets and gcc versions.

Running an ebtables executable linked this way just crashes with a segmentation
fault at runtime on program startup, e.g. on ARM architectures.

In order to fix the issue ...
 - remove the use of the -nostartfiles linker flag
 - rename the init procedures to a generic name without implicit semantics
 - explicitely annotate those init procedures as constructors

The patch has been taken from the Alpine Linux distribution at
http://git.alpinelinux.org/cgit/aports/tree/main/ebtables/fix-extension-init.patch

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

The musl build "fix" introduced in r45108 removed all netinet/ether.h
includes, which made the prototypes of ether_aton and ether_ntoa
unavailable. As a result, the compiler assumed they return int instead
of a pointer. This currupted the pointer on 64bit targets, causing ebtables
to segfault in commands containing MAC addresses.

Since r46161 made it possible to include both the kernel and the libc
if_ether.h as long as the libc version is included first, this patch
changes the fix to remove the linux/if_ether.h from the ebtables source
(so the fixed version from the kernel is used) and ensures netinet/ether.h
is included early.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

SVN-Revision: 46292

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 45108