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# Be quiet and do not echo the cmd
Q = @

# Try to use bash as shell for make
SHELL := $(shell if [ -x /bin/bash ]; then echo /bin/bash; else echo /bin/sh; fi)

# Compiler related stuff
LDQ = $(Q)echo -e "  LD\t$@" && $(CCACHE) $(CC)
CCNQ = $(CCACHE) $(CC)
CCQ = $(Q)echo -e "  CC\t$<" && $(CCNQ)

# sparse related
C =
ifeq ($(C), 1)
  CHECK = $(Q)echo -e "  CHECK\t$<" && sparse
else
  CHECK = @true
endif

# Flex/bison related
LEX = $(Q)echo -e "  LEX\t$<" && flex
YAAC = $(Q)echo -e "  YAAC\t$<" && bison

# Installation related
INST = echo -e "  INST\t$(1)" && install -d $(2) && \
	install --mode=644 -DC $(1) $(2)/$(shell basename $(1))

# Determine wheter origin of PREFIX is "file" or "command line"
ifeq ("$(origin PREFIX)", "$(filter $(origin PREFIX), file command line)")
  INSTX = echo -e "  INST\t$(1)" && install -d $(2) && \
	install -C $(1) $(2)/$(shell basename $(1))
else
  INSTX = echo -e "  INST\t$(1)" && install -C $(1) $(2)/$(shell basename $(1))
endif

MKDIR = echo -e  "  MKDIR\t$(1)" && mkdir -p $(1)

RM = echo -e "  RM\t$(1)" && rm -rf $(1)
RMDIR = echo -e "  RM\t$(1)" && rmdir --ignore-fail-on-non-empty $(1) 2> /dev/null || true

GZIP = gzip -9 -c

# Git related
GIT_LAST_TAG = git describe --abbrev=0 v$(VERSION_SHORT)^
GIT_ARCHIVE = git archive --prefix=netsniff-ng-$(VERSION_SHORT)/ v$(VERSION_SHORT) | \
	      $(1) > ../netsniff-ng-$(VERSION_SHORT).tar.$(2)
GIT_TAG = git tag -a v$(VERSION_SHORT) -s -m "$(VERSION_SHORT) release"
GIT_LOG = git shortlog -n $(shell $(GIT_LAST_TAG))..HEAD
GIT_REM = git ls-files -o | xargs rm -rf
GIT_PEOPLE = git log --no-merges $(shell $(GIT_LAST_TAG))..HEAD | grep Author: | cut -d: -f2 | \
	     cut -d\< -f1 | sort | uniq -c | sort -nr
GIT_VERSION = git describe --always

# GPG related
GPG_SIGN = gpg -a --output ../netsniff-ng-$(VERSION_SHORT).tar.$(1).sign --detach-sig \
		../netsniff-ng-$(VERSION_SHORT).tar.$(1)
ffff: \ flower \ ip_proto tcp \ dst_port 80 \ action \ pedit munge ip ttl add 0xff \ pedit munge tcp dport set 8080 \ pipe action mirred egress redirect dev veth0 Will forward traffic destined to tcp dport 80, while modifying the destination port to 8080, and decreasing the ttl by one. I've uploaded a draft for the userspace [2] to make it easier to review and test the patchset. [1] - http://patchwork.ozlabs.org/patch/700909/ [2] - git: https://bitbucket.org/av42/iproute2.git branch: pedit Patchset was tested and applied on top of upstream commit bd092ad1463c ("Merge branch 'remove-__napi_complete_done'") Thanks, Amir Changes since V2: - Instead of reusing unused bits in existing uapi fields, using new netlink attributes for the new information. This way new/old user space and new/old kernel can live together without having misunderstandings. Changes since V1: - No changes - V1 was sent and didn't make it for 4.10. - You asked me [1] why did I use specific header names instead of layers (L2, L3...), and I explained that it is on purpose, this extra information is planned to be used by hardware drivers to offload the action. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/skbuff.h5
-rw-r--r--include/net/tc_act/tc_pedit.h6
-rw-r--r--include/uapi/linux/tc_act/tc_pedit.h31
3 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h