# netsniff-ng build system
# Copyright 2012 - 2013 Daniel Borkmann <borkmann@gnumaniacs.org>
# Copyright 2013 Tobias Klauser <tklauser@distanz.ch>
# Subject to the GNU GPL, version 2.

-include Config
-include Cmds
-include Extra
-include Template
-include Misc

ifndef CONFIG_OK
  $(error "Please run `./configure' before `make'")
endif

VERSION = 0
PATCHLEVEL = 5
SUBLEVEL = 8
EXTRAVERSION = -rc3
NAME = Ziggomatic

TOOLS ?= $(CONFIG_TOOLS)
TOOLS ?= netsniff-ng trafgen astraceroute flowtop ifpps bpfc curvetun mausezahn

# For packaging purposes, prefix can define a different path.
PREFIX ?=

# Disable if you don't want it
CCACHE ?= $(CONFIG_CCACHE)

# Location of installation paths.
SBINDIR = $(PREFIX)/usr/sbin
INCDIR = $(PREFIX)/usr/include
ETCDIR = $(PREFIX)/etc
ETCDIRE = $(ETCDIR)/netsniff-ng
MAN8DIR = $(PREFIX)/usr/share/man/man8

# Shut up make, helper warnings, parallel compilation!
MAKEFLAGS += --no-print-directory
MAKEFLAGS += -rR
MAKEFLAGS += --warn-undefined-variables
MAKEFLAGS += --jobs=$(shell grep "^processor" /proc/cpuinfo | wc -l)

# Debugging option
ifeq ("$(origin DEBUG)", "command line")
  DEBUG := 1
else
  DEBUG := 0
endif

# For packaging purposes, you might want to call your own:
#   make CFLAGS="<flags>"
CFLAGS_DEF  = -std=gnu99
CFLAGS_DEF += -pipe

ifeq ($(DEBUG), 1)
  CFLAGS_DEF += -O2
  CFLAGS_DEF += -g
else
 ifeq ($(DISTRO), 1)
  CFLAGS_DEF += -O2
 else
  CFLAGS_DEF += -march=native
  CFLAGS_DEF += -mtune=native
  CFLAGS_DEF += -O3
 endif
endif
ifeq ($(HARDENING), 1)
  CFLAGS_DEF += -fPIE -pie
  CFLAGS_DEF += -Wl,-z,relro,-z,now
  CFLAGS_DEF += -fstack-protector-all
  CFLAGS_DEF += -Wstack-protector
  CFLAGS_DEF += --param=ssp-buffer-size=4
  CFLAGS_DEF += -ftrapv
  CFLAGS_DEF += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
  CFLAGS_DEF += -fexceptions
endif

CFLAGS_DEF += -fomit-frame-pointer
CFLAGS_DEF += -fno-strict-aliasing
CFLAGS_DEF += -fasynchronous-unwind-tables
CFLAGS_DEF += -fno-delete-null-pointer-checks

CFLAGS_MIN  = -D_REENTRANT
CFLAGS_MIN += -D_LARGEFILE_SOURCE
CFLAGS_MIN += -D_LARGEFILE64_SOURCE
CFLAGS_MIN += -D_FILE_OFFSET_BITS=64
CFLAGS_MIN += -DVERSION_STRING=\"$(VERSION_STRING)\"
CFLAGS_MIN += -DVERSION_LONG=\"$(VERSION_LONG)\"
CFLAGS_MIN += -DPREFIX_STRING=\"$(PREFIX)\"

WFLAGS_DEF  = -Wall

CPPFLAGS  ?=
CFLAGS    ?= $(CFLAGS_DEF) $(WFLAGS_DEF) $(CPPFLAGS)
override CFLAGS += $(CFLAGS_MIN) -I.

LEX_FLAGS  =
YAAC_FLAGS =

LDFLAGS   ?=
ifeq ("$(origin CROSS_LD_LIBRARY_PATH)", "command line")
  LDFLAGS += -L$(CROSS_LD_LIBRARY_PATH)
endif

VERSION_SHORT  =  $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
VERSION_STRING = "$(VERSION_SHORT)$(CONFIG_RC)"
VERSION_LONG   = "$(VERSION_SHORT)$(CONFIG_RC) ($(NAME))"

export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION
export CROSS_COMPILE
export DEBUG DISTRO HARDENING

bold   = $(shell tput bold)
normal = $(shell tput sgr0)

ifeq ("$(origin CROSS_COMPILE)", "command line")
  WHAT := Cross compiling
else
  WHAT := Building
endif

build_showinfo:
	$(Q)echo "$(bold)$(WHAT) netsniff-ng toolkit ($(VERSION_STRING)) for" \
	      $(shell $(CCNQ) -dumpmachine)":$(normal)"
clean_showinfo:
	$(Q)echo "$(bold)Cleaning netsniff-ng toolkit ($(VERSION_STRING)):$(normal)"

.PHONY: all toolkit $(TOOLS) clean %_prehook %_clean %_install %_uninstall tag tags cscope
.IGNORE: %_clean_custom %_install_custom
.NOTPARALLEL: $(TOOLS)
.DEFAULT_GOAL := all
.DEFAULT:
.FORCE:

all: build_showinfo toolkit
allbutcurvetun: $(filter-out curvetun,$(TOOLS))
allbutmausezahn: $(filter-out mausezahn,$(TOOLS))
toolkit: $(TOOLS)
clean: $(foreach tool,$(TOOLS),$(tool)_clean)
distclean: clean
	$(Q)$(call RM,Config)
	$(Q)$(call RM,config.h)
	$(Q)$(call RM,config.log)
	$(Q)$(call RM,cov-int)
	$(Q)$(call RM,netsniff-ng-coverity.tgz)
mrproper: distclean
	$(Q)$(GIT_REM)

install: install_all
install_all: $(foreach tool,$(TOOLS),$(tool)_install)
install_allbutcurvetun: $(foreach tool,$(filter-out curvetun,$(TOOLS)),$(tool)_install)
install_allbutmausezahn: $(foreach tool,$(filter-out mausezahn,$(TOOLS)),$(tool)_install)
uninstall: $(foreach tool,$(TOOLS),$(tool)_uninstall)

%.yy.o: %.l
	$(LEX) -P $(shell perl -wlne 'print $$1 if /lex-func-prefix:\s([a-z]+)/' $<) \
	       -o $(BUILD_DIR)/$(shell basename $< .l).yy.c $(LEX_FLAGS) $<
%.tab.o: %.y
	$(YAAC) -p $(shell perl -wlne 'print $$1 if /yaac-func-prefix:\s([a-z]+)/' $<) \
		-o $(BUILD_DIR)/$(shell basename $< .y).tab.c $(YAAC_FLAGS) -d $<

$(foreach tool,$(TOOLS),$(eval $(call TOOL_templ,$(tool))))

%:: ;

$(TOOLS):
	$(LD) $(LDFLAGS) -o $@/$@ $@/*.o $($@-libs)
	$(STRIP) $@/$@
ct></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>David Howells &lt;dhowells@redhat.com&gt;</td><td class='right'>2016-08-23 15:27:25 +0100</td></tr>
<tr><th>committer</th><td>David Howells &lt;dhowells@redhat.com&gt;</td><td class='right'>2016-08-23 16:02:35 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/rxrpc/call_event.c?h=nds-private-remove&amp;id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d'>563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/rxrpc/call_event.c?id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d'>0a440b2f02e5a16d30058aa8b0f8fb10e8584b35</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/rxrpc/call_event.c?h=nds-private-remove&amp;id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d'>net/rxrpc/call_event.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/rxrpc/call_event.c?h=nds-private-remove&amp;id=f51b4480021c470d1f5e8066ccc7c10513bd4e37'>f51b4480021c470d1f5e8066ccc7c10513bd4e37</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/rxrpc/call_event.c?h=nds-private-remove&amp;id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d&amp;id2=f51b4480021c470d1f5e8066ccc7c10513bd4e37'>diff</a>)</td></tr></table>
<div class='commit-subject'>rxrpc: Calculate serial skew on packet reception</div><div class='commit-msg'>Calculate the serial number skew in the data_ready handler when a packet
has been received and a connection looked up.  The skew is cached in the
sk_buff's priority field.

The connection highest received serial number is updated at this time also.
This can be done without locks or atomic instructions because, at this
point, the code is serialised by the socket.

This generates more accurate skew data because if the packet is offloaded
to a work queue before this is determined, more packets may come in,
bumping the highest serial number and thereby increasing the apparent skew.

This also removes some unnecessary atomic ops.

Signed-off-by: David Howells &lt;dhowells@redhat.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d'>Diffstat</a> (limited to 'net/rxrpc/call_event.c')</div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/net/rxrpc/call_event.c?h=nds-private-remove&amp;id=563ea7d5d4eaf0ff63ddcaf8ed849eb88bb5738d'>net/rxrpc/call_event.c</a></td><td class='right'>18</td><td class='graph'><table summary='file diffstat' width='18%'><tr><td class='add' style='width: 55.6%;'/><td class='rem' style='width: 44.4%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
</table><div class='diffstat-summary'>1 files changed, 10 insertions, 8 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/net/rxrpc/call_event.c b/net/rxrpc/call_event.c