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Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In netdev family, we will handle non ethernet packets, so using
eth_hdr(skb)->h_proto is incorrect.
Meanwhile, we can use socket(AF_PACKET...) to sending packets, so
skb->protocol is not always set in bridge family.
Add an extra parameter into nf_log_l2packet to solve this issue.
Fixes: 1fddf4bad0ac ("netfilter: nf_log: add packet logging for netdev family")
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Move layer 2 packet logging into nf_log_l2packet() that resides in
nf_log_common.c, so this can be shared by both bridge and netdev
families.
This patch adds the boiler plate code to register the netdev logging
family.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The nf_log_set is an interface function, so it should do the strict sanity
check of parameters. Convert the return value of nf_log_set as int instead
of void. When the pf is invalid, return -EOPNOTSUPP.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This adds the generic plain text packet loggger for bridged packets.
It routes the logging message to the real protocol packet logger.
I decided not to refactor the ebt_log code for two reasons:
1) The ebt_log output is not consistent with the IPv4 and IPv6
Netfilter packet loggers. The output is different for no good
reason and it adds redundant code to handle packet logging.
2) To avoid breaking backward compatibility for applications
outthere that are parsing the specific ebt_log output, the ebt_log
output has been left as is. So only nftables will use the new
consistent logging format for logged bridged packets.
More decisions coming in this patch:
1) This also removes ebt_log as default logger for bridged packets.
Thus, nf_log_packet() routes packet to this new packet logger
instead. This doesn't break backward compatibility since
nf_log_packet() is not used to log packets in plain text format
from anywhere in the ebtables/netfilter bridge code.
2) The new bridge packet logger also performs a lazy request to
register the real IPv4, ARP and IPv6 netfilter packet loggers.
If the real protocol logger is no available (not compiled or the
module is not available in the system, not packet logging happens.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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