glibc/sunrpc/Makefile
Zack Weinberg b10a0accee Disallow use of DES encryption functions in new programs.
The functions encrypt, setkey, encrypt_r, setkey_r, cbc_crypt,
ecb_crypt, and des_setparity should not be used in new programs,
because they use the DES block cipher, which is unacceptably weak by
modern standards.  Demote all of them to compatibility symbols, and
remove their prototypes from installed headers.  cbc_crypt, ecb_crypt,
and des_setparity were already compat symbols when glibc was
configured with --disable-obsolete-rpc.

POSIX requires encrypt and setkey to be available when _XOPEN_CRYPT
is defined, so this change also removes the definition of X_OPEN_CRYPT
from <unistd.h>.

The entire "DES Encryption" section is dropped from the manual, as is
the mention of AUTH_DES and FIPS 140-2 in the introduction to
crypt.texi.  The documentation of 'memfrob' cross-referenced the DES
Encryption section, which is replaced by a hyperlink to libgcrypt, and
while I was in there I spruced up the actual documentation of
'memfrob' and 'strfry' a little.  It's still fairly jokey, because
those functions _are_ jokes, but they do also have real use cases, so
people trying to use them for real should have all the information
they need.

DES-based authentication for Sun RPC is also insecure and should be
deprecated or even removed, but maybe that can be left as TI-RPC's
problem.
2018-06-29 16:53:18 +02:00

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# Copyright (C) 1994-2018 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <http://www.gnu.org/licenses/>.
#
# Sub-makefile for sunrpc portion of the library.
#
subdir := sunrpc
include ../Makeconfig
# The code in this subdirectory is taken from Sun's RPCSRC-4.0
# distribution with some additional changes from the TI-RPC package
# which is also available from Sun. The files are heavily changed to
# compile cleanly and to fit in the GNU environment. All the code
# from Sun's rpc, etc, and rpcgen subdirectories is in this directory;
# the rpc subdirectory contains only the header files. Other than
# that, several files were renamed so as not to exceed 14-character
# file name limits:
#
# authunix_prot.c -> authuxprot.c
# bindresvport.c -> bindrsvprt.c
# clnt_generic.c -> clnt_gen.c
# clnt_perror.c -> clnt_perr.c
# clnt_simple.c -> clnt_simp.c
# get_myaddress.c -> get_myaddr.c
# pmap_getmaps.c -> pm_getmaps.c
# pmap_getport.c -> pm_getport.c
# rpc_callmsg.c -> rpc_cmsg.c
# rpc_commondata.c -> rpc_common.c
# rpc_dtablesize.c -> rpc_dtable.c
# svc_auth_unix.c -> svc_authux.c
# xdr_reference.c -> xdr_ref.c
rpcsvc = bootparam_prot.x nlm_prot.x rstat.x \
yppasswd.x klm_prot.x rex.x sm_inter.x mount.x \
rusers.x spray.x nfs_prot.x rquota.x key_prot.x
headers-sunrpc = $(addprefix rpc/,auth.h auth_unix.h clnt.h pmap_clnt.h \
pmap_prot.h pmap_rmt.h rpc.h rpc_msg.h \
svc.h svc_auth.h types.h xdr.h auth_des.h \
key_prot.h) \
$(rpcsvc:%=rpcsvc/%) rpcsvc/bootparam.h
headers = rpc/netdb.h
install-others = $(inst_sysconfdir)/rpc
generated += $(rpcsvc:%.x=rpcsvc/%.h) $(rpcsvc:%.x=x%.c) $(rpcsvc:%.x=x%.stmp) \
$(rpcsvc:%.x=rpcsvc/%.stmp) rpcgen
generated-dirs += rpcsvc
ifeq ($(link-obsolete-rpc),yes)
headers += $(headers-sunrpc)
endif
ifeq ($(build-shared),yes)
need-export-routines := auth_des auth_unix clnt_gen clnt_perr clnt_tcp \
clnt_udp get_myaddr key_call netname pm_getport \
rpc_thread svc svc_tcp svc_udp xcrypt xdr_array xdr \
xdr_intXX_t xdr_mem xdr_ref xdr_sizeof xdr_stdio \
svc_run
routines := auth_none authuxprot bindrsvprt clnt_raw clnt_simp \
rpc_dtable getrpcport pmap_clnt pm_getmaps pmap_prot pmap_prot2 \
pmap_rmt rpc_prot rpc_common rpc_cmsg svc_auth svc_authux svc_raw \
svc_simple xdr_float xdr_rec publickey authdes_prot \
des_crypt des_impl des_soft key_prot openchild rtime svcauth_des \
getrpcent getrpcbyname getrpcbynumber \
getrpcent_r getrpcbyname_r getrpcbynumber_r \
clnt_unix svc_unix create_xid $(need-export-routines) \
rpc_gethostbyname
ifneq ($(link-obsolete-rpc),yes)
# We only add the RPC for compatibility to libc.so.
shared-only-routines = $(routines)
endif
endif
ifeq ($(link-obsolete-rpc),yes)
install-bin := rpcgen
rpcgen-objs = rpc_main.o rpc_hout.o rpc_cout.o rpc_parse.o \
rpc_scan.o rpc_util.o rpc_svcout.o rpc_clntout.o \
rpc_tblout.o rpc_sample.o
extra-objs = $(rpcgen-objs) $(addprefix cross-,$(rpcgen-objs))
others += rpcgen
endif
tests = tst-xdrmem tst-xdrmem2 test-rpcent tst-udp-error tst-udp-timeout \
tst-udp-nonblocking
xtests := tst-getmyaddr
ifeq ($(have-thread-library),yes)
xtests += thrsvc
tests += tst-udp-garbage
tests-internal += tst-svc_register
endif
ifeq ($(run-built-tests),yes)
ifeq ($(link-obsolete-rpc),yes)
rpcgen-tests := $(objpfx)bug20790.out
tests-special += $(rpcgen-tests)
endif
endif
ifeq ($(link-obsolete-rpc),yes)
headers += $(rpcsvc:%.x=rpcsvc/%.h)
extra-libs := librpcsvc
extra-libs-others := librpcsvc # Make it in `others' pass, not `lib' pass.
librpcsvc-routines = $(rpcsvc:%.x=x%)
librpcsvc-inhibit-o = .os # Build no shared rpcsvc library.
omit-deps = $(librpcsvc-routines)
endif
ifeq (yes,$(build-shared))
rpc-compat-routines = $(addprefix compat-,$(need-export-routines))
rpc-compat-routines.os = $(addprefix $(objpfx), \
$(addsuffix .os,$(rpc-compat-routines)))
extra-objs += $(addsuffix .os,$(rpc-compat-routines))
endif
include ../Rules
ifeq (yes,$(build-shared))
subdir_lib: $(objpfx)librpc_compat_pic.a
$(objpfx)librpc_compat_pic.a: $(rpc-compat-routines.os)
$(AR) cr$(verbose) $@ $^
$(rpc-compat-routines.os): $(objpfx)compat-%.os: %.c $(before-compile)
$(compile-command.c) -DEXPORT_RPC_SYMBOLS
endif
CFLAGS-xbootparam_prot.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xnlm_prot.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xrstat.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xyppasswd.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xklm_prot.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xrex.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xsm_inter.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xmount.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xrusers.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xspray.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xnfs_prot.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xrquota.c += -Wno-unused $(PIC-ccflag)
CFLAGS-xkey_prot.c += -Wno-unused $(PIC-ccflag)
CFLAGS-auth_unix.c += -fexceptions
CFLAGS-key_call.c += -fexceptions
CFLAGS-pmap_rmt.c += -fexceptions
CFLAGS-clnt_perr.c += -fexceptions
CFLAGS-openchild.c += -fexceptions
$(objpfx)tst-getmyaddr: $(common-objpfx)linkobj/libc.so
$(objpfx)tst-xdrmem: $(common-objpfx)linkobj/libc.so
$(objpfx)tst-xdrmem2: $(common-objpfx)linkobj/libc.so
$(objpfx)tst-udp-error: $(common-objpfx)linkobj/libc.so
$(objpfx)tst-svc_register: \
$(common-objpfx)linkobj/libc.so $(shared-thread-library)
$(objpfx)rpcgen: $(addprefix $(objpfx),$(rpcgen-objs))
cross-rpcgen-objs := $(addprefix $(objpfx)cross-,$(rpcgen-objs))
# When generic makefile support for build system programs is
# available, it should replace this code. See
# <https://sourceware.org/bugzilla/show_bug.cgi?id=14087>.
$(cross-rpcgen-objs): $(objpfx)cross-%.o: %.c $(before-compile)
$(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) $< \
$(OUTPUT_OPTION) $(native-compile-mkdep-flags) -c
$(objpfx)cross-rpcgen: $(cross-rpcgen-objs)
$(BUILD_CC) $^ $(BUILD_LDFLAGS) -o $@
# This makes sure -DIN_MODULE is passed for all these modules.
cpp-srcs-left := $(rpcgen-objs:.o=.c)
lib := nonlib
include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
# How we run rpcgen to generate sources and headers in the rules below.
# Setting CPP tells it how to run the C preprocessor correctly. Note
# that $(built-program-file) requires that the just-built cross-rpcgen
# binary be the second dependency listed in each rule using rpcgen-cmd.
rpcgen-cmd = CPP='$(CC) -E -x c-header' $(built-program-file) -Y ../scripts
# Install the rpc data base file.
$(inst_sysconfdir)/rpc: etc.rpc $(+force)
$(do-install)
# Generate the rpcsvc headers with rpcgen.
# We use a stamp file to avoid unnessary recompilation each time rpcgen is
# relinked.
$(rpcsvc:%.x=$(objpfx)rpcsvc/%.h): $(objpfx)rpcsvc/%.h: $(objpfx)rpcsvc/%.stmp
@:
$(objpfx)rpcsvc/%.stmp: rpcsvc/%.x $(objpfx)cross-rpcgen
$(make-target-directory)
-@rm -f ${@:stmp=T} $@
$(rpcgen-cmd) -h $< -o ${@:stmp=T}
$(move-if-change) $(@:stmp=T) $(@:stmp=h)
touch $@
# Generate the rpcsvc XDR functions with rpcgen.
$(rpcsvc:%.x=$(objpfx)x%.c): $(objpfx)x%.c: $(objpfx)x%.stmp
@:
$(objpfx)x%.stmp: rpcsvc/%.x $(objpfx)cross-rpcgen
-@rm -f ${@:stmp=T} $@
$(rpcgen-cmd) -c $< -o ${@:stmp=T}
$(move-if-change) $(@:stmp=T) $(@:stmp=c)
touch $@
# The generated source files depend on the corresponding generated headers.
# Gratuitous dependency on generated .c file here just gets it mentioned to
# avoid being an intermediate file and getting removed.
define o-iterator-doit
$(rpcsvc:%.x=$(objpfx)x%$o): $(objpfx)x%$o: $(objpfx)x%.c $(objpfx)rpcsvc/%.h
endef
object-suffixes-left = $(filter-out $(librpcsvc-inhibit-o),$(object-suffixes))
include $(o-iterator)
rpcsvc-dt-files := $(foreach o,$(filter-out $(librpcsvc-inhibit-o),\
$(object-suffixes)),\
$(rpcsvc:%.x=$(objpfx)x%$o.dt))
rpcsvc-depfiles := $(patsubst %.dt,%.d,$(wildcard $(rpcsvc-dt-files))) \
$(wildcard $(rpcsvc-dt-files:.dt=.d))
ifdef rpcsvc-depfiles
ifneq ($(no_deps),t)
-include $(rpcsvc-depfiles)
endif
endif
$(objpfx)thrsvc: $(common-objpfx)linkobj/libc.so $(shared-thread-library)
ifeq ($(run-built-tests),yes)
$(rpcgen-tests): $(objpfx)%.out: %.x $(objpfx)rpcgen
-rm -f $@
$(built-program-cmd) -c $< -o $@; \
$(evaluate-test)
endif
$(objpfx)tst-udp-timeout: $(common-objpfx)linkobj/libc.so
$(objpfx)tst-udp-nonblocking: $(common-objpfx)linkobj/libc.so
$(objpfx)tst-udp-garbage: \
$(common-objpfx)linkobj/libc.so $(shared-thread-library)