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  • Committer: Teddy Hogeborn
  • Date: 2018-08-15 09:18:22 UTC
  • Revision ID: teddy@recompile.se-20180815091822-tmmqryi0gqnzq6ab
mandos: Better error message if self-signature verification fails

* mandos (ClientHandler.fingerprint): If the verification of the
  self-signature fails, report the actual error message instead of a
  generic message.

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Lines of Context:
Makefile
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WARN=-O -Wall -Wextra -Wdouble-promotion -Wformat=2 -Winit-self \
 
1
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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        -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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#DEBUG:=-ggdb3 -fsanitize=address 
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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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# and <https://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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ALL_SANITIZE_OPTIONS:=-fsanitize=address -fsanitize=undefined \
 
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ALL_SANITIZE_OPTIONS:=-fsanitize=leak -fsanitize=undefined \
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        -fsanitize=shift -fsanitize=integer-divide-by-zero \
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        -fsanitize=unreachable -fsanitize=vla-bound -fsanitize=null \
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        -fsanitize=return -fsanitize=signed-integer-overflow \
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SANITIZE:=$(foreach option,$(ALL_SANITIZE_OPTIONS),$(shell \
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        echo 'int main(){}' | $(CC) --language=c $(option) /dev/stdin \
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        -o /dev/null >/dev/null 2>&1 && echo $(option)))
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LINK_FORTIFY_LD=-z relro -z now
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LINK_FORTIFY=
 
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LINK_FORTIFY_LD:=-z relro -z now
 
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LINK_FORTIFY:=
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# If BROKEN_PIE is set, do not build with -pie
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ifndef BROKEN_PIE
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LINK_FORTIFY += -pie
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endif
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#COVERAGE=--coverage
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OPTIMIZE=-Os -fno-strict-aliasing
41
 
LANGUAGE=-std=gnu11
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htmldir=man
43
 
version=1.7.6
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SED=sed
 
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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:=1.7.19
 
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SED:=sed
45
45
 
46
 
USER=$(firstword $(subst :, ,$(shell getent passwd _mandos || getent passwd nobody || echo 65534)))
47
 
GROUP=$(firstword $(subst :, ,$(shell getent group _mandos || getent group nogroup || echo 65534)))
 
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USER:=$(firstword $(subst :, ,$(shell getent passwd _mandos || getent passwd nobody || echo 65534)))
 
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GROUP:=$(firstword $(subst :, ,$(shell getent group _mandos || getent group nogroup || echo 65534)))
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## Use these settings for a traditional /usr/local install
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# PREFIX=$(DESTDIR)/usr/local
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# CONFDIR=$(DESTDIR)/etc/mandos
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# KEYDIR=$(DESTDIR)/etc/mandos/keys
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# MANDIR=$(PREFIX)/man
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# INITRAMFSTOOLS=$(DESTDIR)/etc/initramfs-tools
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# STATEDIR=$(DESTDIR)/var/lib/mandos
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# LIBDIR=$(PREFIX)/lib
 
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# PREFIX:=$(DESTDIR)/usr/local
 
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# CONFDIR:=$(DESTDIR)/etc/mandos
 
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# KEYDIR:=$(DESTDIR)/etc/mandos/keys
 
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# MANDIR:=$(PREFIX)/man
 
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# INITRAMFSTOOLS:=$(DESTDIR)/etc/initramfs-tools
 
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# STATEDIR:=$(DESTDIR)/var/lib/mandos
 
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# LIBDIR:=$(PREFIX)/lib
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##
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## These settings are for a package-type install
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PREFIX=$(DESTDIR)/usr
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CONFDIR=$(DESTDIR)/etc/mandos
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KEYDIR=$(DESTDIR)/etc/keys/mandos
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MANDIR=$(PREFIX)/share/man
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INITRAMFSTOOLS=$(DESTDIR)/usr/share/initramfs-tools
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STATEDIR=$(DESTDIR)/var/lib/mandos
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LIBDIR=$(shell \
 
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PREFIX:=$(DESTDIR)/usr
 
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CONFDIR:=$(DESTDIR)/etc/mandos
 
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KEYDIR:=$(DESTDIR)/etc/keys/mandos
 
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MANDIR:=$(PREFIX)/share/man
 
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INITRAMFSTOOLS:=$(DESTDIR)/usr/share/initramfs-tools
 
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STATEDIR:=$(DESTDIR)/var/lib/mandos
 
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LIBDIR:=$(shell \
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        for d in \
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        "/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null`" \
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        "`rpm --eval='%{_libdir}' 2>/dev/null`" /usr/lib; do \
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        done)
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##
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SYSTEMD=$(DESTDIR)$(shell pkg-config systemd --variable=systemdsystemunitdir)
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TMPFILES=$(DESTDIR)$(shell pkg-config systemd --variable=tmpfilesdir)
 
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SYSTEMD:=$(DESTDIR)$(shell pkg-config systemd --variable=systemdsystemunitdir)
 
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TMPFILES:=$(DESTDIR)$(shell pkg-config systemd --variable=tmpfilesdir)
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80
 
GNUTLS_CFLAGS=$(shell pkg-config --cflags-only-I gnutls)
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GNUTLS_LIBS=$(shell pkg-config --libs gnutls)
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AVAHI_CFLAGS=$(shell pkg-config --cflags-only-I avahi-core)
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AVAHI_LIBS=$(shell pkg-config --libs avahi-core)
84
 
GPGME_CFLAGS=$(shell gpgme-config --cflags; getconf LFS_CFLAGS)
85
 
GPGME_LIBS=$(shell gpgme-config --libs; getconf LFS_LIBS; \
 
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GNUTLS_CFLAGS:=$(shell pkg-config --cflags-only-I gnutls)
 
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GNUTLS_LIBS:=$(shell pkg-config --libs gnutls)
 
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AVAHI_CFLAGS:=$(shell pkg-config --cflags-only-I avahi-core)
 
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AVAHI_LIBS:=$(shell pkg-config --libs avahi-core)
 
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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)
87
 
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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LIBNL3_CFLAGS:=$(shell pkg-config --cflags-only-I libnl-route-3.0)
 
88
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) $(SANITIZE) $(COVERAGE) \
92
 
        $(OPTIMIZE) $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) \
93
 
        $(GPGME_CFLAGS) -DVERSION='"$(version)"'
 
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        $(OPTIMIZE) $(LANGUAGE) -DVERSION='"$(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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        /usr/share/xml/docbook/stylesheet/nwalsh/xhtml/docbook.xsl \
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        $<; $(HTMLPOST) $@)
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# Fix citerefentry links
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HTMLPOST=$(SED) --in-place \
 
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HTMLPOST:=$(SED) --in-place \
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        --expression='s/\(<a class="citerefentry" href="\)\("><span class="citerefentry"><span class="refentrytitle">\)\([^<]*\)\(<\/span>(\)\([^)]*\)\()<\/span><\/a>\)/\1\3.\5\2\3\4\5\6/g'
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PLUGINS=plugins.d/password-prompt plugins.d/mandos-client \
 
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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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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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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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        plugins.d/mandos-client.8mandos \
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        plugins.d/password-prompt.8mandos plugins.d/usplash.8mandos \
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        plugins.d/splashy.8mandos plugins.d/askpass-fifo.8mandos \
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        plugins.d/plymouth.8mandos intro.8mandos
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htmldocs=$(addsuffix .xhtml,$(DOCS))
 
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htmldocs:=$(addsuffix .xhtml,$(DOCS))
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objects=$(addsuffix .o,$(CPROGS))
 
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objects:=$(addsuffix .o,$(CPROGS))
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all: $(PROGS) mandos.lsm
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                --expression='s/\(mandos_\)[0-9.]\+\(\.orig\.tar\.gz\)/\1$(version)\2/' \
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                $@)
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# Need to add the GnuTLS, Avahi and GPGME libraries, and can't use
 
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# -fsanitize=leak because GnuTLS and GPGME both leak memory.
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plugins.d/mandos-client: plugins.d/mandos-client.c
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        $(LINK.c) $^ -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
 
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        $(CC) $(filter-out -fsanitize=leak,$(CFLAGS)) $(strip\
 
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        ) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) $(GPGME_CFLAGS) $(strip\
 
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                ) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(strip\
 
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                ) -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
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                ) $(GPGME_LIBS) $(LOADLIBES) $(LDLIBS) -o $@
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plugin-helpers/mandos-client-iprouteadddel: plugin-helpers/mandos-client-iprouteadddel.c
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run-client: all keydir/seckey.txt keydir/pubkey.txt
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        @echo "###################################################################"
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        @echo "# The following error messages are harmless and can be safely     #"
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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 "# ignored:                                                        #"
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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:                                             #"
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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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        @echo "# (The messages are caused by not running as root, but you should #"
 
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        @echo "# NOT run \"make run-client\" as root unless you also unpacked and  #"
 
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        @echo "# compiled Mandos as root, which is also NOT recommended.)        #"
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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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                chown -- $(USER):$(GROUP) $(STATEDIR) || :; \
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        fi
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        if [ "$(TMPFILES)" != "$(DESTDIR)" -a -d "$(TMPFILES)" ]; then \
342
 
                install --mode=u=rwx,go=r tmpfiles.d-mandos.conf \
 
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                install --mode=u=rw,go=r tmpfiles.d-mandos.conf \
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                        $(TMPFILES)/mandos.conf; \
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        fi
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        install --mode=u=rwx,go=rx mandos $(PREFIX)/sbin/mandos
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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 \
386
 
                        --directory "$(CONFDIR)/plugins.d"; \
387
 
                install --directory "$(CONFDIR)/plugin-helpers"; \
 
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                        --directory "$(CONFDIR)/plugins.d" \
 
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                        "$(CONFDIR)/plugin-helpers"; \
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        fi
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        install --mode=u=rwx,go=rx --directory \
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                "$(CONFDIR)/network-hooks.d"