view Makefile.in @ 1653:76189c9ffea2

External Public-Key Authentication API (#72) * Implemented dynamic loading of an external plug-in shared library to delegate public key authentication * Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled * Added tags file to the ignore list * Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them * Added -rdynamic to the linker flags when EPKA is enabled * Changed the API to pass a previously created session to the checkPubKey function (created during preauth) * Added documentation to the API * Added parameter addrstring to plugin creation function * Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session) * Changed option string to be a simple char * instead of unsigned char *
author fabriziobertocci <fabriziobertocci@gmail.com>
date Wed, 15 May 2019 09:43:57 -0400
parents b794d277c6da
children cc0fc5131c5c
line wrap: on
line source
# This Makefile is for Dropbear SSH Server and Client
# @[email protected]

# invocation:
# make PROGRAMS="dropbear dbclient scp" MULTI=1 SCPPROGRESS=1
#
# to make a multiple-program binary "dropbearmulti".
# This example will include dropbear, scp, dropbearkey, dropbearconvert, and
# dbclient functionality, and includes the progress-bar functionality in scp.

ifndef PROGRAMS
	PROGRAMS=dropbear dbclient dropbearkey dropbearconvert
endif

STATIC_LTC=libtomcrypt/libtomcrypt.a
STATIC_LTM=libtommath/libtommath.a

LIBTOM_LIBS=@[email protected]

ifeq (@[email protected], 1)
LIBTOM_DEPS=$(STATIC_LTC) $(STATIC_LTM) 
LIBTOM_CLEAN=ltc-clean ltm-clean
CFLAGS+=-I$(srcdir)/libtomcrypt/src/headers/
LIBTOM_LIBS=$(STATIC_LTC) $(STATIC_LTM)
endif

OPTION_HEADERS = default_options_guard.h sysoptions.h
ifneq ($(wildcard localoptions.h),)
CFLAGS+=-DLOCALOPTIONS_H_EXISTS
OPTION_HEADERS += localoptions.h
endif

COMMONOBJS=dbutil.o buffer.o dbhelpers.o \
		dss.o bignum.o \
		signkey.o rsa.o dbrandom.o \
		queue.o \
		atomicio.o compat.o fake-rfc2553.o \
		ltc_prng.o ecc.o ecdsa.o crypto_desc.o \
		dbmalloc.o \
		gensignkey.o gendss.o genrsa.o

SVROBJS=svr-kex.o svr-auth.o sshpty.o \
		svr-authpasswd.o svr-authpubkey.o svr-authpubkeyoptions.o svr-session.o svr-service.o \
		svr-chansession.o svr-runopts.o svr-agentfwd.o svr-main.o svr-x11fwd.o\
		svr-tcpfwd.o svr-authpam.o

CLIOBJS=cli-main.o cli-auth.o cli-authpasswd.o cli-kex.o \
		cli-session.o cli-runopts.o cli-chansession.o \
		cli-authpubkey.o cli-tcpfwd.o cli-channel.o cli-authinteract.o \
		cli-agentfwd.o 

CLISVROBJS=common-session.o packet.o common-algo.o common-kex.o \
			common-channel.o common-chansession.o termcodes.o loginrec.o \
			tcp-accept.o listener.o process-packet.o dh_groups.o \
			common-runopts.o circbuffer.o curve25519-donna.o list.o netio.o

KEYOBJS=dropbearkey.o

CONVERTOBJS=dropbearconvert.o keyimport.o

SCPOBJS=scp.o progressmeter.o atomicio.o scpmisc.o compat.o

ifeq (@[email protected], 1)
	allobjs = $(COMMONOBJS) fuzz-common.o  fuzz-wrapfd.o $(CLISVROBJS) $(CLIOBJS) $(SVROBJS) @[email protected]
	allobjs:=$(subst svr-main.o, ,$(allobjs))
	allobjs:=$(subst cli-main.o, ,$(allobjs))
	allobjs:=$(sort $(allobjs))

	dropbearobjs=$(allobjs) svr-main.o
	dbclientobjs=$(allobjs) cli-main.o
	dropbearkeyobjs=$(allobjs) $(KEYOBJS)
	dropbearconvertobjs=$(allobjs) $(CONVERTOBJS)
	# CXX only set when fuzzing
	CXX=@[email protected]
else
	dropbearobjs=$(COMMONOBJS) $(CLISVROBJS) $(SVROBJS)
	dbclientobjs=$(COMMONOBJS) $(CLISVROBJS) $(CLIOBJS)
	dropbearkeyobjs=$(COMMONOBJS) $(KEYOBJS)
	dropbearconvertobjs=$(COMMONOBJS) $(CONVERTOBJS)
	scpobjs=$(SCPOBJS)
endif

ifeq (@[email protected], 1)
    # rdynamic makes all the global symbols of dropbear available to all the loaded shared libraries
    # this allow a plugin to reuse existing crypto/utilities like base64_decode/base64_encode without
    # the need to rewrite them.
    EPKA_LIBS=-ldl -rdynamic
else
    EPKA_LIBS=
endif

VPATH=@[email protected]
srcdir=@[email protected]

prefix=@[email protected]
exec_prefix=@[email protected]
datarootdir = @[email protected]
bindir=@[email protected]
sbindir=@[email protected]
mandir=@[email protected]

.DELETE_ON_ERROR:

CC=@[email protected]
AR=@[email protected]
RANLIB=@[email protected]
STRIP=@[email protected]
INSTALL=@[email protected]
CPPFLAGS=@[email protected]
CFLAGS+=-I. -I$(srcdir) $(CPPFLAGS) @[email protected]
LIBS+=@[email protected]
LDFLAGS=@[email protected]

EXEEXT=@[email protected]

STATIC=@[email protected]

# whether we're building client, server, or both for the common objects.
# evilness so we detect 'dropbear' by itself as a word
ifneq (,$(strip $(foreach prog, $(PROGRAMS), $(findstring ZdropbearZ, Z$(prog)Z))))
	CFLAGS+= -DDROPBEAR_SERVER
endif
ifneq (,$(strip $(foreach prog, $(PROGRAMS), $(findstring ZdbclientZ, Z$(prog)Z))))
	CFLAGS+= -DDROPBEAR_CLIENT
endif

# these are exported so that libtomcrypt's makefile will use them
export CC
export CFLAGS
export RANLIB AR STRIP

ifeq ($(STATIC), 1)
	LDFLAGS+=-static
endif

ifeq ($(MULTI), 1)
	TARGETS=dropbearmulti$(EXEEXT)
else
	TARGETS=$(PROGRAMS)
endif

# for the scp progress meter. The -D doesn't affect anything else.
ifeq ($(SCPPROGRESS), 1)
	CFLAGS+=-DPROGRESS_METER
endif

all: $(TARGETS)

# for simplicity assume all source depends on all headers
HEADERS=$(wildcard $(srcdir)/*.h *.h) $(OPTION_HEADERS)
%.o : %.c $(HEADERS)
	$(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o [email protected]

default_options_guard.h: default_options.h
	@echo Creating [email protected]
	@printf "/*\n > > > Do not edit this file (default_options_guard.h) < < <\nGenerated from "$^"\nLocal customisation goes in localoptions.h\n*/\n\n" > [email protected].tmp
	@$(srcdir)/ifndef_wrapper.sh < $^ >> [email protected].tmp
	@mv [email protected].tmp [email protected]

strip: $(TARGETS)
	$(STRIP) $(addsuffix $(EXEEXT), $(TARGETS))

install: $(addprefix inst_, $(TARGETS))

insmultidropbear: dropbearmulti$(EXEEXT)
	$(INSTALL) -d $(DESTDIR)$(sbindir)
	-rm -f $(DESTDIR)$(sbindir)/dropbear$(EXEEXT)
	-ln -s $(bindir)/dropbearmulti$(EXEEXT) $(DESTDIR)$(sbindir)/dropbear$(EXEEXT) 
	$(INSTALL) -d $(DESTDIR)$(mandir)/man8
	$(INSTALL) -m 644 $(srcdir)/dropbear.8  $(DESTDIR)$(mandir)/man8/dropbear.8

insmulti%: dropbearmulti$(EXEEXT)
	$(INSTALL) -d $(DESTDIR)$(bindir)
	-rm -f $(DESTDIR)$(bindir)/$*$(EXEEXT) 
	-ln -s $(bindir)/dropbearmulti$(EXEEXT) $(DESTDIR)$(bindir)/$*$(EXEEXT) 
	$(INSTALL) -d $(DESTDIR)$(mandir)/man1
	if test -e $*.1; then $(INSTALL) -m 644 $*.1 $(DESTDIR)$(mandir)/man1/$*.1; fi

# dropbear should go in sbin, so it needs a separate rule
inst_dropbear: dropbear
	$(INSTALL) -d $(DESTDIR)$(sbindir)
	$(INSTALL) dropbear$(EXEEXT) $(DESTDIR)$(sbindir)
	$(INSTALL) -d $(DESTDIR)$(mandir)/man8
	$(INSTALL) -m 644 $(srcdir)/dropbear.8 $(DESTDIR)$(mandir)/man8/dropbear.8

inst_%: %
	$(INSTALL) -d $(DESTDIR)$(bindir)
	$(INSTALL) $*$(EXEEXT) $(DESTDIR)$(bindir)
	$(INSTALL) -d $(DESTDIR)$(mandir)/man1
	if test -e $*.1; then $(INSTALL) -m 644 $*.1 $(DESTDIR)$(mandir)/man1/$*.1; fi

inst_dropbearmulti: $(addprefix insmulti, $(PROGRAMS)) 

# for some reason the rule further down doesn't like $([email protected]) as a prereq.
dropbear: $(dropbearobjs)
dbclient: $(dbclientobjs)
dropbearkey: $(dropbearkeyobjs)
dropbearconvert: $(dropbearconvertobjs)

dropbear: $(HEADERS) $(LIBTOM_DEPS) Makefile
	$(CC) $(LDFLAGS) -o [email protected]$(EXEEXT) $([email protected]objs) $(LIBTOM_LIBS) $(LIBS) @[email protected] $(EPKA_LIBS)

dbclient: $(HEADERS) $(LIBTOM_DEPS) Makefile
	$(CC) $(LDFLAGS) -o [email protected]$(EXEEXT) $([email protected]objs) $(LIBTOM_LIBS) $(LIBS)

dropbearkey dropbearconvert: $(HEADERS) $(LIBTOM_DEPS) Makefile
	$(CC) $(LDFLAGS) -o [email protected]$(EXEEXT) $([email protected]objs) $(LIBTOM_LIBS) $(LIBS)

# scp doesn't use the libs so is special.
scp: $(SCPOBJS)  $(HEADERS) Makefile
	$(CC) $(LDFLAGS) -o [email protected]$(EXEEXT) $(SCPOBJS)


# multi-binary compilation.
MULTIOBJS=
ifeq ($(MULTI),1)
	MULTIOBJS=dbmulti.o $(sort $(foreach prog, $(PROGRAMS), $($(prog)objs)))
	CFLAGS+=$(addprefix -DDBMULTI_, $(PROGRAMS)) -DDROPBEAR_MULTI
endif

dropbearmulti$(EXEEXT): $(HEADERS) $(MULTIOBJS) $(LIBTOM_DEPS) Makefile
	$(CC) $(LDFLAGS) -o [email protected] $(MULTIOBJS) $(LIBTOM_LIBS) $(LIBS) @[email protected]

multibinary: dropbearmulti$(EXEEXT)

multilink: multibinary $(addprefix link, $(PROGRAMS))

link%:
	-rm -f $*$(EXEEXT)
	-ln -s dropbearmulti$(EXEEXT) $*$(EXEEXT)

$(STATIC_LTC): $(OPTION_HEADERS)
	$(MAKE) -C libtomcrypt

$(STATIC_LTM): $(OPTION_HEADERS)
	$(MAKE) -C libtommath

.PHONY : clean sizes thisclean distclean tidy ltc-clean ltm-clean

ltc-clean:
	$(MAKE) -C libtomcrypt clean

ltm-clean:
	$(MAKE) -C libtommath clean

sizes: dropbear
	objdump -t dropbear|grep ".text"|cut -d "." -f 2|sort -rn

clean: $(LIBTOM_CLEAN) thisclean

thisclean:
	-rm -f dropbear$(EXEEXT) dbclient$(EXEEXT) dropbearkey$(EXEEXT) \
			dropbearconvert$(EXEEXT) scp$(EXEEXT) scp-progress$(EXEEXT) \
			dropbearmulti$(EXEEXT) *.o *.da *.bb *.bbg *.prof

distclean: clean tidy
	-rm -f config.h
	-rm -f Makefile
	-rm -f default_options_guard.h

tidy:
	-rm -f *~ *.gcov */*~

## Fuzzing targets

# list of fuzz targets
FUZZ_TARGETS=fuzzer-preauth fuzzer-pubkey fuzzer-verify fuzzer-preauth_nomaths fuzzer-kexdh fuzzer-kexecdh

FUZZER_OPTIONS = $(addsuffix .options, $(FUZZ_TARGETS))

list-fuzz-targets:
	@echo $(FUZZ_TARGETS)

# fuzzers that don't use libfuzzer, just a standalone harness that feeds inputs
fuzzstandalone: FUZZLIB=fuzz-harness.o
fuzzstandalone: fuzz-harness.o fuzz-targets

# exclude svr-main.o to avoid duplicate main
svrfuzzobjs=$(subst svr-main.o, ,$(dropbearobjs))

# build all the fuzzers. This will require fail to link unless built with
# make fuzz-targets FUZZLIB=-lFuzzer.a 
# or similar - the library provides main().
fuzz-targets: $(FUZZ_TARGETS) $(FUZZER_OPTIONS)

fuzzer-preauth: fuzzer-preauth.o $(HEADERS) $(LIBTOM_DEPS) Makefile $(svrfuzzobjs)
	$(CXX) $(CXXFLAGS) [email protected].o $(LDFLAGS) $(svrfuzzobjs) -o [email protected]$(EXEEXT) $(LIBTOM_LIBS) $(LIBS) $(FUZZLIB) @[email protected]

fuzzer-preauth_nomaths: fuzzer-preauth_nomaths.o $(HEADERS) $(LIBTOM_DEPS) Makefile $(svrfuzzobjs)
	$(CXX) $(CXXFLAGS) [email protected].o $(LDFLAGS) $(svrfuzzobjs) -o [email protected]$(EXEEXT) $(LIBTOM_LIBS) $(LIBS) $(FUZZLIB) @[email protected]

fuzzer-pubkey: fuzzer-pubkey.o $(HEADERS) $(LIBTOM_DEPS) Makefile $(svrfuzzobjs)
	$(CXX) $(CXXFLAGS) [email protected].o $(LDFLAGS) $(svrfuzzobjs) -o [email protected]$(EXEEXT) $(LIBTOM_LIBS) $(LIBS) $(FUZZLIB) @[email protected]

fuzzer-verify: fuzzer-verify.o $(HEADERS) $(LIBTOM_DEPS) Makefile $(svrfuzzobjs)
	$(CXX) $(CXXFLAGS) [email protected].o $(LDFLAGS) $(svrfuzzobjs) -o [email protected]$(EXEEXT) $(LIBTOM_LIBS) $(LIBS) $(FUZZLIB) @[email protected]

fuzzer-kexdh: fuzzer-kexdh.o $(HEADERS) $(LIBTOM_DEPS) Makefile $(svrfuzzobjs)
	$(CXX) $(CXXFLAGS) [email protected].o $(LDFLAGS) $(svrfuzzobjs) -o [email protected]$(EXEEXT) $(LIBTOM_LIBS) $(LIBS) $(FUZZLIB) @[email protected]

fuzzer-kexecdh: fuzzer-kexecdh.o $(HEADERS) $(LIBTOM_DEPS) Makefile $(svrfuzzobjs)
	$(CXX) $(CXXFLAGS) [email protected].o $(LDFLAGS) $(svrfuzzobjs) -o [email protected]$(EXEEXT) $(LIBTOM_LIBS) $(LIBS) $(FUZZLIB) @[email protected]

fuzzer-%.options: Makefile
	echo "[libfuzzer]"               > [email protected]
	echo "max_len = 50000"          >> [email protected]

# run this to update hardcoded hostkeys for for fuzzing. 
# hostkeys.c is checked in to hg.
fuzz-hostkeys:
	dropbearkey -t rsa -f keyr
	dropbearkey -t dss -f keyd
	dropbearkey -t ecdsa -size 256 -f keye
	echo > hostkeys.c
	/usr/bin/xxd -i -a keyr >> hostkeys.c
	/usr/bin/xxd -i -a keye >> hostkeys.c
	/usr/bin/xxd -i -a keyd >> hostkeys.c