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  • Committer: Teddy Hogeborn
  • Date: 2016-02-28 10:59:18 UTC
  • Revision ID: teddy@recompile.se-20160228105918-tb8pt2p5j0tkcls3
Handle GnuTLS errors and partial sends in gnutls "module".

* mandos (GnuTLS.E_INTERRUPTED, GnuTLS.E_AGAIN): New.
  (GnuTLS.Error): Set error code as "code" attribute.
  (GnuTLS.ClientSession.send): Handle partial sends with a loop.
  (GnuTLS._retry_on_error): New function.
  (GnuTLS.record_send, GnuTLS.handshake, GnuTLS.bye): Set "errcheck"
                                                      attribute to
                                                    "_retry_on_error".
  (ClientHandler.handle): Remove loop for handling partial sends;
                          GnuTLS.ClientSession.send() will do that.

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Makefile
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WARN=-O -Wall -Wformat=2 -Winit-self -Wmissing-include-dirs \
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        -Wswitch-default -Wswitch-enum -Wunused-parameter \
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        -Wstrict-aliasing=1 -Wextra -Wfloat-equal -Wundef -Wshadow \
 
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WARN=-O -Wall -Wextra -Wdouble-promotion -Wformat=2 -Winit-self \
 
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        -Wmissing-include-dirs -Wswitch-default -Wswitch-enum \
 
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        -Wunused -Wuninitialized -Wstrict-overflow=5 \
 
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        -Wsuggest-attribute=pure -Wsuggest-attribute=const \
 
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        -Wsuggest-attribute=noreturn -Wfloat-equal -Wundef -Wshadow \
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        -Wunsafe-loop-optimizations -Wpointer-arith \
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        -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings \
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        -Wconversion -Wstrict-prototypes -Wold-style-definition \
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        -Wpacked -Wnested-externs -Winline -Wvolatile-register-var
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#       -Wunreachable-code
 
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        -Wconversion -Wlogical-op -Waggregate-return \
 
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        -Wstrict-prototypes -Wold-style-definition \
 
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        -Wmissing-format-attribute -Wnormalized=nfc -Wpacked \
 
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        -Wredundant-decls -Wnested-externs -Winline -Wvla \
 
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        -Wvolatile-register-var -Woverlength-strings
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#DEBUG=-ggdb3
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# For info about _FORTIFY_SOURCE, see
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# <http://www.kernel.org/doc/man-pages/online/pages/man7/feature_test_macros.7.html>
 
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# For info about _FORTIFY_SOURCE, see feature_test_macros(7)
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# and <http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html>.
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FORTIFY=-D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIC
 
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# <https://developerblog.redhat.com/2014/10/16/gcc-undefined-behavior-sanitizer-ubsan/>
 
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# The sanitizing options are available in GCC 4.9 and above.
 
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ifeq ($(shell test $(shell $(CC) -dumpversion) \> 4.9-; echo $$?),0)
 
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SANITIZE:=-fsanitize=address -fsanitize=undefined -fsanitize=shift \
 
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        -fsanitize=integer-divide-by-zero -fsanitize=unreachable \
 
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        -fsanitize=vla-bound -fsanitize=null -fsanitize=return \
 
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        -fsanitize=signed-integer-overflow
 
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# GCC 5.3 has some more sanitizing options
 
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ifeq ($(shell test $(shell $(CC) -dumpversion) \> 5.3-; echo $$?),0)
 
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SANITIZE+=-fsanitize=bounds -fsanitize=alignment \
 
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        -fsanitize=object-size -fsanitize=float-divide-by-zero \
 
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        -fsanitize=float-cast-overflow -fsanitize=nonnull-attribute \
 
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        -fsanitize=returns-nonnull-attribute -fsanitize=bool \
 
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        -fsanitize=enum
 
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endif
 
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else
 
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SANITIZE:=
 
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endif
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LINK_FORTIFY_LD=-z relro -z now
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LINK_FORTIFY=
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LINK_FORTIFY += -pie
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endif
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#COVERAGE=--coverage
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OPTIMIZE=-Os
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LANGUAGE=-std=gnu99
 
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OPTIMIZE=-Os -fno-strict-aliasing
 
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LANGUAGE=-std=gnu11
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htmldir=man
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version=1.6.2
 
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version=1.7.1
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SED=sed
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USER=$(firstword $(subst :, ,$(shell getent passwd _mandos || getent passwd nobody || echo 65534)))
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GPGME_CFLAGS=$(shell gpgme-config --cflags; getconf LFS_CFLAGS)
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GPGME_LIBS=$(shell gpgme-config --libs; getconf LFS_LIBS; \
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        getconf LFS_LDFLAGS)
 
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LIBNL3_CFLAGS=$(shell pkg-config --cflags-only-I libnl-route-3.0)
 
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LIBNL3_LIBS=$(shell pkg-config --libs libnl-route-3.0)
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# Do not change these two
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CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(COVERAGE) $(OPTIMIZE) \
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        $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) $(GPGME_CFLAGS) \
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        -DVERSION='"$(version)"'
 
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CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(SANITIZE) $(COVERAGE) \
 
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        $(OPTIMIZE) $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) \
 
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        $(GPGME_CFLAGS) -DVERSION='"$(version)"'
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LDFLAGS+=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
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# Commands to format a DocBook <refentry> document into a manual page
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        --param man.authors.section.enabled     0 \
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        /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
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        $(notdir $<); \
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        $(MANPOST) $(notdir $@);\
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        if locale --all 2>/dev/null | grep --regexp='^en_US\.utf8$$' \
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        && type man 2>/dev/null; then LANG=en_US.UTF-8 MANWIDTH=80 \
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        man --warnings --encoding=UTF-8 --local-file $(notdir $@); \
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        fi >/dev/null)
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# DocBook-to-man post-processing to fix a '\n' escape bug
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MANPOST=$(SED) --in-place --expression='s,\\\\en,\\en,g;s,\\n,\\en,g'
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DOCBOOKTOHTML=$(strip xsltproc --nonet --xinclude \
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        --param make.year.ranges                1 \
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PLUGINS=plugins.d/password-prompt plugins.d/mandos-client \
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        plugins.d/usplash plugins.d/splashy plugins.d/askpass-fifo \
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        plugins.d/plymouth
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CPROGS=plugin-runner $(PLUGINS)
 
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PLUGIN_HELPERS=plugin-helpers/mandos-client-iprouteadddel
 
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CPROGS=plugin-runner $(PLUGINS) $(PLUGIN_HELPERS)
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PROGS=mandos mandos-keygen mandos-ctl mandos-monitor $(CPROGS)
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DOCS=mandos.8 mandos-keygen.8 mandos-monitor.8 mandos-ctl.8 \
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        mandos.conf.5 mandos-clients.conf.5 plugin-runner.8mandos \
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        $(LINK.c) $^ -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
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                ) $(GPGME_LIBS) $(LOADLIBES) $(LDLIBS) -o $@
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.PHONY : all doc html clean distclean run-client run-server install \
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        install-server install-client uninstall uninstall-server \
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        uninstall-client purge purge-server purge-client
 
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plugin-helpers/mandos-client-iprouteadddel: plugin-helpers/mandos-client-iprouteadddel.c
 
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        $(LINK.c) $(LIBNL3_CFLAGS) $^ $(LIBNL3_LIBS) $(strip\
 
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                ) $(LOADLIBES) $(LDLIBS) -o $@
 
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.PHONY : all doc html clean distclean mostlyclean maintainer-clean \
 
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        check run-client run-server install install-html \
 
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        install-server install-client-nokey install-client uninstall \
 
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        uninstall-server uninstall-client purge purge-server \
 
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        purge-client
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clean:
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        -rm --force $(CPROGS) $(objects) $(htmldocs) $(DOCS) core
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        @echo "# ignored.  The messages are caused by not running as root, but   #"
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        @echo "# you should NOT run \"make run-client\" as root unless you also    #"
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        @echo "# unpacked and compiled Mandos as root, which is NOT recommended. #"
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        @echo "# From plugin-runner: setuid: Operation not permitted             #"
 
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        @echo "# From plugin-runner: setgid: Operation not permitted             #"
 
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        @echo "#                     setuid: Operation not permitted             #"
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        @echo "# From askpass-fifo:  mkfifo: Permission denied                   #"
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        @echo "# From mandos-client: setuid: Operation not permitted             #"
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        @echo "#                     seteuid: Operation not permitted            #"
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        @echo "#                     klogctl: Operation not permitted            #"
 
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        @echo "# From mandos-client:                                             #"
 
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        @echo "#             Failed to raise privileges: Operation not permitted #"
 
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        @echo "#             Warning: network hook \"*\" exited with status *      #"
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        @echo "###################################################################"
 
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# We set GNOME_KEYRING_CONTROL to block pam_gnome_keyring
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        ./plugin-runner --plugin-dir=plugins.d \
 
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                --plugin-helper-dir=plugin-helpers \
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                --config-file=plugin-runner.conf \
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                --options-for=mandos-client:--seckey=keydir/seckey.txt,--pubkey=keydir/pubkey.txt,--network-hook-dir=network-hooks.d \
 
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                --env-for=mandos-client:GNOME_KEYRING_CONTROL= \
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                $(CLIENTARGS)
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# Used by run-client
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        install --directory confdir
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        install --mode=u=rw $< $@
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# Add a client password
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        ./mandos-keygen --dir keydir --password >> $@
 
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        ./mandos-keygen --dir keydir --password --no-ssh >> $@
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statedir:
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        install --directory statedir
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install-client-nokey: all doc
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        install --directory $(LIBDIR)/mandos $(CONFDIR)
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        install --directory --mode=u=rwx $(KEYDIR) \
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                $(LIBDIR)/mandos/plugins.d
 
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                $(LIBDIR)/mandos/plugins.d \
 
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                $(LIBDIR)/mandos/plugin-helpers
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        if [ "$(CONFDIR)" != "$(LIBDIR)/mandos" ]; then \
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                install --mode=u=rwx \
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                        --directory "$(CONFDIR)/plugins.d"; \
 
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                install --directory "$(CONFDIR)/plugin-helpers"; \
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        fi
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        install --mode=u=rwx,go=rx --directory \
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                "$(CONFDIR)/network-hooks.d"
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        install --mode=u=rwxs,go=rx \
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                --target-directory=$(LIBDIR)/mandos/plugins.d \
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                plugins.d/plymouth
 
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        install --mode=u=rwxs,go=rx \
 
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                --target-directory=$(LIBDIR)/mandos/plugin-helpers \
 
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                plugin-helpers/mandos-client-iprouteadddel
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        install initramfs-tools-hook \
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                $(INITRAMFSTOOLS)/hooks/mandos
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        install --mode=u=rw,go=r initramfs-tools-hook-conf \