en Copyright 2015 Java http://172.16.0.5:8080/history/linux-6.15/net/psample/Makefile#ec8f24b7 treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner <tglx@linutronix.de>Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> List of files: /linux-6.15/net/psample/Makefile Sun, 19 May 2019 12:07:45 +0000 Thomas Gleixner <tglx@linutronix.de> http://172.16.0.5:8080/history/linux-6.15/net/psample/Makefile#6ae0a628 net: Introduce psample, a new genetlink channel for packet samplingAdd a general way for kernel modules to sample packets, without being tiedto any specific subsystem. This netlink channel can be used by tc,iptables, etc. and allow to standardize packet sampling in the kernel.For every sampled packet, the psample module adds the following metadatafields:PSAMPLE_ATTR_IIFINDEX - the packets input ifindex, if applicablePSAMPLE_ATTR_OIFINDEX - the packet output ifindex, if applicablePSAMPLE_ATTR_ORIGSIZE - the packet's original size, in case it has been truncated during samplingPSAMPLE_ATTR_SAMPLE_GROUP - the packet's sample group, which is set by the user who initiated the sampling. This field allows the user to differentiate between several samplers working simultaneously and filter packets relevant to himPSAMPLE_ATTR_GROUP_SEQ - sequence counter of last sent packet. The sequence is kept for each groupPSAMPLE_ATTR_SAMPLE_RATE - the sampling rate used for sampling the packetsPSAMPLE_ATTR_DATA - the actual packet bitsThe sampled packets are sent to the PSAMPLE_NL_MCGRP_SAMPLE multicastgroup. In addition, add the GET_GROUPS netlink command which allows theuser to see the current sample groups, their refcount and sequence number.This command currently supports only netlink dump mode.Signed-off-by: Yotam Gigi <yotamg@mellanox.com>Signed-off-by: Jiri Pirko <jiri@mellanox.com>Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>Reviewed-by: Simon Horman <simon.horman@netronome.com>Signed-off-by: David S. Miller <davem@davemloft.net> List of files: /linux-6.15/net/psample/Makefile Mon, 23 Jan 2017 10:07:08 +0000 Yotam Gigi <yotamg@mellanox.com>