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freebsd-skq/include/Makefile
melifaro 4eda536b2e Introduce nexthop objects and new routing KPI. 
This is the foundational change for the routing subsytem rearchitecture.
 More details and goals are available in https://reviews.freebsd.org/D24141 .

This patch introduces concept of nexthop objects and new nexthop-based
 routing KPI.

Nexthops are objects, containing all necessary information for performing
 the packet output decision. Output interface, mtu, flags, gw address goes
 there. For most of the cases, these objects will serve the same role as
 the struct rtentry is currently serving.
Typically there will be low tens of such objects for the router even with
 multiple BGP full-views, as these objects will be shared between routing
 entries. This allows to store more information in the nexthop.

New KPI:

struct nhop_object *fib4_lookup(uint32_t fibnum, struct in_addr dst,
  uint32_t scopeid, uint32_t flags, uint32_t flowid);
struct nhop_object *fib6_lookup(uint32_t fibnum, const struct in6_addr *dst6,
  uint32_t scopeid, uint32_t flags, uint32_t flowid);

These 2 function are intended to replace all all flavours of
 <in_|in6_>rtalloc[1]<_ign><_fib>, mpath functions  and the previous
 fib[46]-generation functions.

Upon successful lookup, they return nexthop object which is guaranteed to
 exist within current NET_EPOCH. If longer lifetime is desired, one can
 specify NHR_REF as a flag and get a referenced version of the nexthop.
 Reference semantic closely resembles rtentry one, allowing sed-style conversion.

Additionally, another 2 functions are introduced to support uRPF functionality
 inside variety of our firewalls. Their primary goal is to hide the multipath
 implementation details inside the routing subsystem, greatly simplifying
 firewalls implementation:

int fib4_lookup_urpf(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
  uint32_t flags, const struct ifnet *src_if);
int fib6_lookup_urpf(uint32_t fibnum, const struct in6_addr *dst6, uint32_t scopeid,
  uint32_t flags, const struct ifnet *src_if);

All functions have a separate scopeid argument, paving way to eliminating IPv6 scope
 embedding and allowing to support IPv4 link-locals in the future.

Structure changes:
 * rtentry gets new 'rt_nhop' pointer, slightly growing the overall size.
 * rib_head gets new 'rnh_preadd' callback pointer, slightly growing overall sz.

Old KPI:
During the transition state old and new KPI will coexists. As there are another 4-5
 decent-sized conversion patches, it will probably take a couple of weeks.
To support both KPIs, fields not required by the new KPI (most of rtentry) has to be
 kept, resulting in the temporary size increase.
Once conversion is finished, rtentry will notably shrink.

More details:
* architectural overview: https://reviews.freebsd.org/D24141
* list of the next changes: https://reviews.freebsd.org/D24232

Reviewed by:	ae,glebius(initial version)
Differential Revision:	https://reviews.freebsd.org/D24232
2020-04-12 14:30:00 +00:00

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Makefile
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# @(#)Makefile 8.2 (Berkeley) 1/4/94
# $FreeBSD$
#
# Doing a "make install" builds /usr/include.
.include <src.opts.mk>
PACKAGE=runtime
CLEANFILES= osreldate.h version
SUBDIR= arpa protocols rpcsvc rpc xlocale
SUBDIR_PARALLEL=
INCS= a.out.h ar.h assert.h bitstring.h complex.h cpio.h _ctype.h ctype.h \
db.h \
dirent.h dlfcn.h elf.h elf-hints.h err.h fmtmsg.h fnmatch.h fstab.h \
fts.h ftw.h getopt.h glob.h grp.h \
ieeefp.h ifaddrs.h \
inttypes.h iso646.h kenv.h langinfo.h libgen.h limits.h link.h \
locale.h malloc.h malloc_np.h memory.h monetary.h mpool.h mqueue.h \
ndbm.h netconfig.h \
netdb.h nl_types.h nlist.h nss.h nsswitch.h paths.h \
printf.h proc_service.h pthread.h \
pthread_np.h pwd.h ranlib.h readpassphrase.h regex.h \
res_update.h resolv.h runetype.h search.h semaphore.h setjmp.h \
signal.h spawn.h stab.h stdalign.h stdbool.h stddef.h \
stdnoreturn.h stdio.h stdlib.h string.h stringlist.h \
strings.h sysexits.h tar.h termios.h tgmath.h \
time.h timeconv.h timers.h ttyent.h \
uchar.h ulimit.h unistd.h utime.h utmpx.h uuid.h varargs.h \
wchar.h wctype.h wordexp.h xlocale.h
.PATH: ${SRCTOP}/contrib/libc-vis
INCS+= vis.h
MHDRS= float.h floatingpoint.h stdarg.h
PHDRS= sched.h _semaphore.h
LHDRS= aio.h errno.h fcntl.h linker_set.h poll.h stdatomic.h stdint.h \
syslog.h ucontext.h
LDIRS= bsm cam geom net net80211 netgraph netinet netinet6 \
netipsec netsmb nfs nfsclient nfsserver sys vm
LSUBDIRS= cam/ata cam/mmc cam/nvme cam/scsi \
dev/acpica dev/agp dev/an dev/ciss dev/filemon dev/firewire \
dev/hwpmc dev/hyperv \
dev/ic dev/iicbus dev/io dev/mfi dev/mmc dev/nvme \
dev/ofw dev/pbio dev/pci ${_dev_powermac_nvram} dev/ppbus dev/pwm \
dev/smbus dev/speaker dev/tcp_log dev/veriexec dev/vkbd dev/wi \
fs/devfs fs/fdescfs fs/msdosfs fs/nfs fs/nullfs \
fs/procfs fs/smbfs fs/udf fs/unionfs \
geom/cache geom/concat geom/eli geom/gate geom/journal geom/label \
geom/mirror geom/mountver geom/multipath geom/nop \
geom/raid geom/raid3 geom/shsec geom/stripe geom/virstor \
net/altq \
net/route \
netgraph/atm netgraph/netflow \
netinet/cc \
netinet/netdump \
security/audit \
security/mac_biba security/mac_bsdextended security/mac_lomac \
security/mac_mls security/mac_partition \
security/mac_veriexec \
sys/disk \
ufs/ffs ufs/ufs
LSUBSUBDIRS= dev/mpt/mpilib
.if ${MK_BLUETOOTH} != "no"
LSUBSUBDIRS+= netgraph/bluetooth/include
.endif
.if ${MK_CUSE} != "no"
LSUBDIRS+= fs/cuse
.endif
.if ${MK_GSSAPI} != "no"
SUBDIR+= gssapi
INCS+= gssapi.h
.endif
.if ${MK_HESIOD} != "no"
INCS+= hesiod.h
.endif
# Handle the #define aliases for libiconv
.if ${MK_ICONV} == "yes"
INCS+= iconv.h
.endif
.if ${MK_USB} != "no"
LSUBDIRS+= dev/usb
.endif
.if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64"
_dev_powermac_nvram= dev/powermac_nvram
.endif
# Define SHARED to indicate whether you want symbolic links to the system
# source (``symlinks''), or a separate copy (``copies''). ``symlinks'' is
# probably only useful for developers and should be avoided if you do not
# wish to tie your /usr/include and /usr/src together.
#SHARED= symlinks
SHARED?= copies
INCS+= osreldate.h
SYSDIR= ${SRCTOP}/sys
NEWVERS_SH= ${SYSDIR}/conf/newvers.sh
PARAM_H= ${SYSDIR}/sys/param.h
MK_OSRELDATE_SH= ${.CURDIR}/mk-osreldate.sh
SYMLINKS+= ${LIBDIR:C,[^/]+,..,g:C,^/,,}${INCLUDEDIR} ${LIBDIR}/include
osreldate.h: ${NEWVERS_SH} ${PARAM_H} ${MK_OSRELDATE_SH}
env NEWVERS_SH=${NEWVERS_SH} PARAMFILE=${PARAM_H} SYSDIR=${SYSDIR} \
sh ${MK_OSRELDATE_SH}
.for i in ${LHDRS}
INCSLINKS+= sys/$i ${INCLUDEDIR}/$i
.endfor
.for i in ${MHDRS}
INCSLINKS+= machine/$i ${INCLUDEDIR}/$i
.endfor
.for i in ${PHDRS}
INCSLINKS+= sys/$i ${INCLUDEDIR}/$i
.endfor
.if ${MACHINE} != ${MACHINE_CPUARCH}
_MARCHS= ${MACHINE_CPUARCH}
.endif
.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
_MARCHS+= x86
.endif
META_TARGETS+= compat
stage_includes: ${SHARED}
SDESTDIR= ${SYSROOT:U${DESTDIR}}
# Take care of stale directory-level symlinks.
compat:
.for i in ${LDIRS} ${LSUBDIRS} machine ${_MARCHS} crypto
if [ -L ${SDESTDIR}${INCLUDEDIR}/$i ]; then \
rm -f ${SDESTDIR}${INCLUDEDIR}/$i; \
fi
.endfor
mtree -deU ${NO_ROOT:D-W} ${MTREE_FOLLOWS_SYMLINKS} \
-f ${SRCTOP}/etc/mtree/BSD.include.dist \
-p ${SDESTDIR}${INCLUDEDIR} > /dev/null
copies: .PHONY .META
.for i in ${LDIRS} ${LSUBDIRS} ${LSUBSUBDIRS} crypto machine machine/pc \
${_MARCHS}
if [ -d ${SDESTDIR}${INCLUDEDIR}/$i ]; then \
cd ${SDESTDIR}${INCLUDEDIR}/$i; \
for h in *.h; do \
if [ -L $$h ]; then rm -f $$h; fi; \
done; \
fi
.endfor
.for i in ${LDIRS} ${LSUBDIRS:Ndev/agp:Ndev/acpica:Ndev/evdev:Ndev/hyperv:Ndev/pci:Ndev/veriexec} ${LSUBSUBDIRS}
cd ${SRCTOP}/sys; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 $i/*.h \
${SDESTDIR}${INCLUDEDIR}/$i
.endfor
cd ${SRCTOP}/sys/dev/acpica; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 acpiio.h \
${SDESTDIR}${INCLUDEDIR}/dev/acpica; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 acpi_hpet.h \
${SDESTDIR}${INCLUDEDIR}/dev/acpica
cd ${SRCTOP}/sys/dev/agp; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 agpreg.h \
${SDESTDIR}${INCLUDEDIR}/dev/agp
cd ${SRCTOP}/sys/dev/evdev; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 input.h \
${SDESTDIR}${INCLUDEDIR}/dev/evdev; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 input-event-codes.h \
${SDESTDIR}${INCLUDEDIR}/dev/evdev; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 uinput.h \
${SDESTDIR}${INCLUDEDIR}/dev/evdev
cd ${SRCTOP}/sys/dev/hyperv/include; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 hyperv.h \
${SDESTDIR}${INCLUDEDIR}/dev/hyperv
cd ${SRCTOP}/sys/dev/hyperv/utilities; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 hv_snapshot.h \
${SDESTDIR}${INCLUDEDIR}/dev/hyperv
cd ${SRCTOP}/sys/dev/pci; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 pcireg.h \
${SDESTDIR}${INCLUDEDIR}/dev/pci
cd ${SRCTOP}/sys/dev/veriexec; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 veriexec_ioctl.h \
${SDESTDIR}${INCLUDEDIR}/dev/veriexec
cd ${SRCTOP}/sys/fs/cd9660/; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/isofs/cd9660
.if ${MK_IPFILTER} != "no"
cd ${SRCTOP}/sys/contrib/ipfilter/netinet; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/netinet
.endif
.if ${MK_PF} != "no"
cd ${SRCTOP}/sys/netpfil/pf; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/netpfil/pf
.endif
cd ${SRCTOP}/sys/crypto; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 rijndael/rijndael.h \
${SDESTDIR}${INCLUDEDIR}/crypto
cd ${SRCTOP}/sys/opencrypto; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/crypto
cd ${SRCTOP}/sys/${MACHINE}/include; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/machine
.if exists(${SRCTOP}/sys/${MACHINE}/include/pc)
cd ${SRCTOP}/sys/${MACHINE}/include/pc; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/machine/pc
.endif
.for _MARCH in ${_MARCHS}
.if exists(${SRCTOP}/sys/${_MARCH}/include)
${INSTALL} -d ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 755 \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}; \
cd ${SRCTOP}/sys/${_MARCH}/include; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}
.if exists(${SRCTOP}/sys/${_MARCH}/include/pc)
${INSTALL} -d ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 755 \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}/pc; \
cd ${SRCTOP}/sys/${_MARCH}/include/pc; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}/pc
.endif
.endif
.endfor
cd ${SRCTOP}/sys/rpc; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 types.h \
${SDESTDIR}${INCLUDEDIR}/rpc
cd ${SRCTOP}/sys/teken; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 teken.h \
${SDESTDIR}${INCLUDEDIR}/teken
.if ${MK_CDDL} != "no"
cd ${SRCTOP}/sys/cddl/contrib/opensolaris/uts/common/sys; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 nvpair.h \
${SDESTDIR}${INCLUDEDIR}/sys
.endif
.if ${MK_MLX5TOOL} != "no"
cd ${SRCTOP}/sys/dev/mlx5; \
${INSTALL} -C ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 444 mlx5io.h \
${SDESTDIR}${INCLUDEDIR}/dev/mlx5
.endif
symlinks: .PHONY .META
@${ECHO} "Setting up symlinks to kernel source tree..."
.for i in ${LDIRS}
cd ${SRCTOP}/sys/$i; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/$i/$$h ${SDESTDIR}${INCLUDEDIR}/$i; \
done
.endfor
.for i in ${LSUBDIRS:Ndev/agp:Ndev/acpica:Ndev/evdev:Ndev/hyperv:Ndev/pci:Ndev/veriexec}
cd ${SRCTOP}/sys/$i; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/$i/$$h ${SDESTDIR}${INCLUDEDIR}/$i; \
done
.endfor
cd ${SRCTOP}/sys/dev/acpica; \
for h in acpiio.h acpi_hpet.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/dev/acpica/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/acpica; \
done
cd ${SRCTOP}/sys/dev/agp; \
for h in agpreg.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/dev/agp/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/agp; \
done
cd ${SRCTOP}/sys/dev/evdev; \
for h in input.h input-event-codes.h uinput.h; do \
ln -fs ../../../../sys/dev/evdev/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/evdev; \
done
cd ${SRCTOP}/sys/dev/hyperv/include; \
for h in hyperv.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/dev/hyperv/include/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/hyperv; \
done
cd ${SRCTOP}/sys/dev/hyperv/utilities; \
for h in hv_snapshot.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/dev/hyperv/utilities/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/hyperv; \
done
cd ${SRCTOP}/sys/dev/pci; \
for h in pcireg.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/dev/pci/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/pci; \
done
cd ${SRCTOP}/sys/dev/veriexec; \
for h in veriexec_ioctl.h; do \
ln -fs ../../../../sys/dev/veriexec/$$h \
${SDESTDIR}${INCLUDEDIR}/dev/veriexec; \
done
.for i in ${LSUBSUBDIRS}
cd ${SRCTOP}/sys/$i; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../../sys/$i/$$h ${SDESTDIR}${INCLUDEDIR}/$i; \
done
.endfor
.if ${MK_IPFILTER} != "no"
cd ${SRCTOP}/sys/contrib/ipfilter/netinet; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/contrib/ipfilter/netinet/$$h \
${SDESTDIR}${INCLUDEDIR}/netinet; \
done
.endif
.if ${MK_PF} != "no"
cd ${SRCTOP}/sys/netpfil/pf; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/netpfil/pf/$$h \
${SDESTDIR}${INCLUDEDIR}/netpfil/pf; \
done
.endif
cd ${SRCTOP}/sys/crypto; \
for h in rijndael/rijndael.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/crypto/$$h \
${SDESTDIR}${INCLUDEDIR}/crypto; \
done
cd ${SRCTOP}/sys/opencrypto; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/opencrypto/$$h \
${SDESTDIR}${INCLUDEDIR}/crypto; \
done
cd ${SRCTOP}/sys/${MACHINE}/include; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/${MACHINE}/include/$$h \
${SDESTDIR}${INCLUDEDIR}/machine; \
done
.if exists(${SRCTOP}/sys/${MACHINE}/include/pc)
cd ${SRCTOP}/sys/${MACHINE}/include/pc; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/${MACHINE}/include/pc/$$h \
${SDESTDIR}${INCLUDEDIR}/machine/pc; \
done
.endif
.for _MARCH in ${_MARCHS}
.if exists(${SRCTOP}/sys/${_MARCH}/include)
${INSTALL} -d ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 755 \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}; \
cd ${SRCTOP}/sys/${_MARCH}/include; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/${_MARCH}/include/$$h \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}; \
done
.if exists(${SRCTOP}/sys/${_MARCH}/include/pc)
${INSTALL} -d ${TAG_ARGS} -o ${BINOWN} -g ${BINGRP} -m 755 \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}/pc; \
cd ${SRCTOP}/sys/${_MARCH}/include/pc; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/${_MARCH}/include/pc/$$h \
${SDESTDIR}${INCLUDEDIR}/${_MARCH}/pc; \
done
.endif
.endif
.endfor
cd ${SRCTOP}/sys/fs/cd9660; \
for h in *.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/fs/cd9660/$$h \
${SDESTDIR}${INCLUDEDIR}/isofs/cd9660; \
done
cd ${SRCTOP}/sys/rpc; \
for h in types.h; do \
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../sys/rpc/$$h \
${SDESTDIR}${INCLUDEDIR}/rpc; \
done
.if ${MK_CDDL} != "no"
${INSTALL_SYMLINK} ${TAG_ARGS} \
../../../sys/cddl/contrib/opensolaris/uts/common/sys/nvpair.h \
${SDESTDIR}${INCLUDEDIR}/sys
.endif
.if ${MK_MLX5TOOL} != "no"
${INSTALL_SYMLINK} ${TAG_ARGS} ../../../../sys/dev/mlx5/mlx5io.h \
${SDESTDIR}${INCLUDEDIR}/dev/mlx5
.endif
.include <bsd.prog.mk>
installincludes: ${SHARED}
${SHARED}: compat
.if ${MACHINE} == "host" && !defined(_SKIP_BUILD)
# we're here because we are building a sysroot...
# we need MACHINE et al set correctly
HOST_MACHINE!= uname -m
HOST_MACHINE_ARCH!= uname -p
MACHINE:= ${HOST_MACHINE}
MACHINE_ARCH:= ${HOST_MACHINE_ARCH}
.endif
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