/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2024-11-17 16:53:00 UTC
  • Revision ID: teddy@recompile.se-20241117165300-02hxm96s8cj9528e
mandos: Avoid closing configured server network socket

If we are passed a pre-created created network socket as a file
descriptor, we must avoid later closing it (when stdin, stdout and
stderr are dup2()ed over with /dev/null) by making sure that the
network file descriptor is not 0, 1, or 2, by creating a new file
descriptor if necessary.

However, when we create a new file descriptor we must check that the
new file descriptor is not 0, 1, or 2 either, and try again until we
get a suitable file descriptor.

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Makefile
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# For info about _FORTIFY_SOURCE, see feature_test_macros(7)
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# and <https://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html>.
32
 
FORTIFY:=-D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIC
 
32
FORTIFY:=-fstack-protector-all -fPIC
 
33
CPPFLAGS+=-D_FORTIFY_SOURCE=3
33
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LINK_FORTIFY_LD:=-z relro -z now
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LINK_FORTIFY:=
35
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41
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#COVERAGE=--coverage
42
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OPTIMIZE:=-Os -fno-strict-aliasing
43
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LANGUAGE:=-std=gnu11
44
 
FEATURES:=-D_FILE_OFFSET_BITS=64
 
45
CPPFLAGS+=-D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64
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htmldir:=man
46
 
version:=1.8.9
 
47
version:=1.8.17
47
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SED:=sed
48
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PKG_CONFIG?=pkg-config
49
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56
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57
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## Use these settings for a traditional /usr/local install
58
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# PREFIX:=$(DESTDIR)/usr/local
 
60
# BINDIR:=$(PREFIX)/sbin
59
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# CONFDIR:=$(DESTDIR)/etc/mandos
60
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# KEYDIR:=$(DESTDIR)/etc/mandos/keys
61
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# MANDIR:=$(PREFIX)/man
63
65
# DRACUTMODULE:=$(DESTDIR)/usr/lib/dracut/modules.d/90mandos
64
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# STATEDIR:=$(DESTDIR)/var/lib/mandos
65
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# LIBDIR:=$(PREFIX)/lib
 
68
# DBUSPOLICYDIR:=$(DESTDIR)/etc/dbus-1/system.d
66
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##
67
70
 
68
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## These settings are for a package-type install
69
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PREFIX:=$(DESTDIR)/usr
 
73
BINDIR:=$(PREFIX)/sbin
70
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CONFDIR:=$(DESTDIR)/etc/mandos
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KEYDIR:=$(DESTDIR)/etc/keys/mandos
72
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MANDIR:=$(PREFIX)/share/man
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                        break; \
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                fi; \
85
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        done)
 
90
DBUSPOLICYDIR:=$(DESTDIR)/usr/share/dbus-1/system.d
86
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##
87
92
 
88
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SYSTEMD:=$(DESTDIR)$(shell $(PKG_CONFIG) systemd \
96
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GNUTLS_LIBS:=$(shell $(PKG_CONFIG) --libs gnutls)
97
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AVAHI_CFLAGS:=$(shell $(PKG_CONFIG) --cflags-only-I avahi-core)
98
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AVAHI_LIBS:=$(shell $(PKG_CONFIG) --libs avahi-core)
99
 
GPGME_CFLAGS:=$(shell gpgme-config --cflags; getconf LFS_CFLAGS)
100
 
GPGME_LIBS:=$(shell gpgme-config --libs; getconf LFS_LIBS; \
 
104
GPGME_CFLAGS:=$(shell $(PKG_CONFIG) --cflags-only-I gpgme 2>/dev/null \
 
105
        || gpgme-config --cflags; getconf LFS_CFLAGS)
 
106
GPGME_LIBS:=$(shell $(PKG_CONFIG) --libs gpgme 2>/dev/null \
 
107
        || gpgme-config --libs; getconf LFS_LIBS; \
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        getconf LFS_LDFLAGS)
102
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LIBNL3_CFLAGS:=$(shell $(PKG_CONFIG) --cflags-only-I libnl-route-3.0)
103
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LIBNL3_LIBS:=$(shell $(PKG_CONFIG) --libs libnl-route-3.0)
106
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107
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# Do not change these two
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CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(COVERAGE) $(OPTIMIZE) \
109
 
        $(LANGUAGE) $(FEATURES) -DVERSION='"$(version)"'
 
116
        $(LANGUAGE) -DVERSION='"$(version)"'
110
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LDFLAGS+=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(strip \
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        ) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
112
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                --expression='s/\(mandos_\)[0-9.]\+\(\.orig\.tar\.gz\)/\1$(version)\2/' \
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                $@)
286
293
 
 
294
# Does the linker support the --no-warn-execstack option?
 
295
ifeq ($(shell echo 'int main(){}'|$(CC) --language=c /dev/stdin -o /dev/null -Xlinker --no-warn-execstack >/dev/null 2>&1 && echo yes),yes)
 
296
# These programs use nested functions, which uses an executable stack
 
297
plugin-runner: LDFLAGS += -Xlinker --no-warn-execstack
 
298
dracut-module/password-agent: LDFLAGS += -Xlinker --no-warn-execstack
 
299
plugins.d/password-prompt: LDFLAGS += -Xlinker --no-warn-execstack
 
300
plugins.d/mandos-client: LDFLAGS += -Xlinker --no-warn-execstack
 
301
plugins.d/plymouth: LDFLAGS += -Xlinker --no-warn-execstack
 
302
endif
 
303
 
287
304
# Need to add the GnuTLS, Avahi and GPGME libraries
288
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plugins.d/mandos-client: CFLAGS += $(GNUTLS_CFLAGS) $(strip \
289
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        ) $(AVAHI_CFLAGS) $(GPGME_CFLAGS)
296
313
 
297
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# Need to add the GLib and pthread libraries
298
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dracut-module/password-agent: CFLAGS += $(GLIB_CFLAGS)
 
316
# Note: -lpthread is unnecessary with the GNU C library 2.34 or later
299
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dracut-module/password-agent: LDLIBS += $(GLIB_LIBS) -lpthread
300
318
 
301
319
.PHONY: clean
354
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keydir/seckey.txt keydir/pubkey.txt keydir/tls-privkey.pem keydir/tls-pubkey.pem: mandos-keygen
355
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        install --directory keydir
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        ./mandos-keygen --dir keydir --force
 
375
        if ! [ -e keydir/tls-privkey.pem ]; then \
 
376
                install --mode=u=rw /dev/null keydir/tls-privkey.pem; \
 
377
        fi
 
378
        if ! [ -e keydir/tls-pubkey.pem ]; then \
 
379
                install --mode=u=rw /dev/null keydir/tls-pubkey.pem; \
 
380
        fi
357
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358
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# Run the server with a local config
359
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.PHONY: run-server
363
387
 
364
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# Used by run-server
365
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confdir/mandos.conf: mandos.conf
366
 
        install --directory confdir
367
 
        install --mode=u=rw,go=r $^ $@
 
390
        install -D --mode=u=rw,go=r $^ $@
368
391
confdir/clients.conf: clients.conf keydir/seckey.txt keydir/tls-pubkey.pem
369
 
        install --directory confdir
370
 
        install --mode=u=rw $< $@
 
392
        install -D --mode=u=rw $< $@
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# Add a client password
372
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        ./mandos-keygen --dir keydir --password --no-ssh >> $@
373
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statedir:
378
400
 
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.PHONY: install-html
380
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install-html: html
381
 
        install --directory $(htmldir)
382
 
        install --mode=u=rw,go=r --target-directory=$(htmldir) \
 
403
        install -D --mode=u=rw,go=r --target-directory=$(htmldir) \
383
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                $(htmldocs)
384
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.PHONY: install-server
386
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install-server: doc
387
 
        install --directory $(CONFDIR)
388
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        if install --directory --mode=u=rwx --owner=$(USER) \
389
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                --group=$(GROUP) $(STATEDIR); then \
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                :; \
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        elif install --directory --mode=u=rwx $(STATEDIR); then \
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                chown -- $(USER):$(GROUP) $(STATEDIR) || :; \
393
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        fi
394
 
        if [ "$(TMPFILES)" != "$(DESTDIR)" \
395
 
                        -a -d "$(TMPFILES)" ]; then \
396
 
                install --mode=u=rw,go=r tmpfiles.d-mandos.conf \
 
414
        if [ "$(TMPFILES)" != "$(DESTDIR)" ]; then \
 
415
                install -D --mode=u=rw,go=r tmpfiles.d-mandos.conf \
397
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                        $(TMPFILES)/mandos.conf; \
398
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        fi
399
 
        if [ "$(SYSUSERS)" != "$(DESTDIR)" \
400
 
                        -a -d "$(SYSUSERS)" ]; then \
401
 
                install --mode=u=rw,go=r sysusers.d-mandos.conf \
 
418
        if [ "$(SYSUSERS)" != "$(DESTDIR)" ]; then \
 
419
                install -D --mode=u=rw,go=r sysusers.d-mandos.conf \
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                        $(SYSUSERS)/mandos.conf; \
403
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        fi
404
 
        install --mode=u=rwx,go=rx mandos $(PREFIX)/sbin/mandos
405
 
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
 
422
        install --directory $(BINDIR)
 
423
        install --mode=u=rwx,go=rx --target-directory=$(BINDIR) mandos
 
424
        install --mode=u=rwx,go=rx --target-directory=$(BINDIR) \
406
425
                mandos-ctl
407
 
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
 
426
        install --mode=u=rwx,go=rx --target-directory=$(BINDIR) \
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                mandos-monitor
 
428
        install --directory $(CONFDIR)
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        install --mode=u=rw,go=r --target-directory=$(CONFDIR) \
410
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                mandos.conf
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        install --mode=u=rw --target-directory=$(CONFDIR) \
412
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                clients.conf
413
 
        install --mode=u=rw,go=r dbus-mandos.conf \
414
 
                $(DESTDIR)/etc/dbus-1/system.d/mandos.conf
415
 
        install --mode=u=rwx,go=rx init.d-mandos \
 
433
        install -D --mode=u=rw,go=r dbus-mandos.conf \
 
434
                $(DBUSPOLICYDIR)/mandos.conf
 
435
        install -D --mode=u=rwx,go=rx init.d-mandos \
416
436
                $(DESTDIR)/etc/init.d/mandos
417
 
        if [ "$(SYSTEMD)" != "$(DESTDIR)" -a -d "$(SYSTEMD)" ]; then \
418
 
                install --mode=u=rw,go=r mandos.service $(SYSTEMD); \
 
437
        if [ "$(SYSTEMD)" != "$(DESTDIR)" ]; then \
 
438
                install -D --mode=u=rw,go=r mandos.service \
 
439
                        $(SYSTEMD); \
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        fi
420
 
        install --mode=u=rw,go=r default-mandos \
 
441
        install -D --mode=u=rw,go=r default-mandos \
421
442
                $(DESTDIR)/etc/default/mandos
422
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        if [ -z $(DESTDIR) ]; then \
423
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                update-rc.d mandos defaults 25 15;\
424
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        fi
 
446
        install --directory $(MANDIR)/man8 $(MANDIR)/man5
425
447
        gzip --best --to-stdout mandos.8 \
426
448
                > $(MANDIR)/man8/mandos.8.gz
427
449
        gzip --best --to-stdout mandos-monitor.8 \
437
459
 
438
460
.PHONY: install-client-nokey
439
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install-client-nokey: all doc
440
 
        install --directory $(LIBDIR)/mandos $(CONFDIR)
441
462
        install --directory --mode=u=rwx $(KEYDIR) \
442
463
                $(LIBDIR)/mandos/plugins.d \
443
464
                $(LIBDIR)/mandos/plugin-helpers
444
 
        if [ "$(SYSUSERS)" != "$(DESTDIR)" \
445
 
                        -a -d "$(SYSUSERS)" ]; then \
446
 
                install --mode=u=rw,go=r sysusers.d-mandos.conf \
 
465
        if [ "$(SYSUSERS)" != "$(DESTDIR)" ]; then \
 
466
                install -D --mode=u=rw,go=r sysusers.d-mandos.conf \
447
467
                        $(SYSUSERS)/mandos-client.conf; \
448
468
        fi
449
469
        if [ "$(CONFDIR)" != "$(LIBDIR)/mandos" ]; then \
450
 
                install --mode=u=rwx \
451
 
                        --directory "$(CONFDIR)/plugins.d" \
 
470
                install --directory \
 
471
                        --mode=u=rwx "$(CONFDIR)/plugins.d" \
452
472
                        "$(CONFDIR)/plugin-helpers"; \
453
473
        fi
454
 
        install --mode=u=rwx,go=rx --directory \
 
474
        install --directory --mode=u=rwx,go=rx \
455
475
                "$(CONFDIR)/network-hooks.d"
456
476
        install --mode=u=rwx,go=rx \
457
477
                --target-directory=$(LIBDIR)/mandos plugin-runner
458
478
        install --mode=u=rwx,go=rx \
459
479
                --target-directory=$(LIBDIR)/mandos \
460
480
                mandos-to-cryptroot-unlock
461
 
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
 
481
        install --directory $(BINDIR)
 
482
        install --mode=u=rwx,go=rx --target-directory=$(BINDIR) \
462
483
                mandos-keygen
463
484
        install --mode=u=rwx,go=rx \
464
485
                --target-directory=$(LIBDIR)/mandos/plugins.d \
481
502
        install --mode=u=rwx,go=rx \
482
503
                --target-directory=$(LIBDIR)/mandos/plugin-helpers \
483
504
                plugin-helpers/mandos-client-iprouteadddel
484
 
        install initramfs-tools-hook \
 
505
        install -D initramfs-tools-hook \
485
506
                $(INITRAMFSTOOLS)/hooks/mandos
486
 
        install --mode=u=rw,go=r initramfs-tools-conf \
 
507
        install -D --mode=u=rw,go=r initramfs-tools-conf \
487
508
                $(INITRAMFSTOOLS)/conf.d/mandos-conf
488
 
        install --mode=u=rw,go=r initramfs-tools-conf-hook \
 
509
        install -D --mode=u=rw,go=r initramfs-tools-conf-hook \
489
510
                $(INITRAMFSTOOLS)/conf-hooks.d/zz-mandos
490
 
        install initramfs-tools-script \
 
511
        install -D initramfs-tools-script \
491
512
                $(INITRAMFSTOOLS)/scripts/init-premount/mandos
492
 
        install initramfs-tools-script-stop \
 
513
        install -D initramfs-tools-script-stop \
493
514
                $(INITRAMFSTOOLS)/scripts/local-premount/mandos
494
 
        install --directory $(DRACUTMODULE)
495
 
        install --mode=u=rw,go=r --target-directory=$(DRACUTMODULE) \
 
515
        install -D --mode=u=rw,go=r \
 
516
                --target-directory=$(DRACUTMODULE) \
496
517
                dracut-module/ask-password-mandos.path \
497
518
                dracut-module/ask-password-mandos.service
498
519
        install --mode=u=rwxs,go=rx \
501
522
                dracut-module/cmdline-mandos.sh \
502
523
                dracut-module/password-agent
503
524
        install --mode=u=rw,go=r plugin-runner.conf $(CONFDIR)
 
525
        install --directory $(MANDIR)/man8
504
526
        gzip --best --to-stdout mandos-keygen.8 \
505
527
                > $(MANDIR)/man8/mandos-keygen.8.gz
506
528
        gzip --best --to-stdout plugin-runner.8mandos \
523
545
.PHONY: install-client
524
546
install-client: install-client-nokey
525
547
# Post-installation stuff
526
 
        -$(PREFIX)/sbin/mandos-keygen --dir "$(KEYDIR)"
 
548
        -$(BINDIR)/mandos-keygen --dir "$(KEYDIR)"
527
549
        if command -v update-initramfs >/dev/null; then \
528
550
            update-initramfs -k all -u; \
529
551
        elif command -v dracut >/dev/null; then \
541
563
 
542
564
.PHONY: uninstall-server
543
565
uninstall-server:
544
 
        -rm --force $(PREFIX)/sbin/mandos \
545
 
                $(PREFIX)/sbin/mandos-ctl \
546
 
                $(PREFIX)/sbin/mandos-monitor \
 
566
        -rm --force $(BINDIR)/mandos \
 
567
                $(BINDIR)/mandos-ctl \
 
568
                $(BINDIR)/mandos-monitor \
547
569
                $(MANDIR)/man8/mandos.8.gz \
548
570
                $(MANDIR)/man8/mandos-monitor.8.gz \
549
571
                $(MANDIR)/man8/mandos-ctl.8.gz \
558
580
# to use it.
559
581
        ! grep --regexp='^ *[^ #].*keyscript=[^,=]*/mandos/' \
560
582
                $(DESTDIR)/etc/crypttab
561
 
        -rm --force $(PREFIX)/sbin/mandos-keygen \
 
583
        -rm --force $(BINDIR)/mandos-keygen \
562
584
                $(LIBDIR)/mandos/plugin-runner \
563
585
                $(LIBDIR)/mandos/plugins.d/password-prompt \
564
586
                $(LIBDIR)/mandos/plugins.d/mandos-client \
603
625
                $(DESTDIR)/etc/dbus-1/system.d/mandos.conf
604
626
                $(DESTDIR)/etc/default/mandos \
605
627
                $(DESTDIR)/etc/init.d/mandos \
606
 
                $(SYSTEMD)/mandos.service \
607
628
                $(DESTDIR)/run/mandos.pid \
608
629
                $(DESTDIR)/var/run/mandos.pid
 
630
        if [ "$(SYSTEMD)" != "$(DESTDIR)" -a -d "$(SYSTEMD)" ]; then \
 
631
                -rm --force -- $(SYSTEMD)/mandos.service; \
 
632
        fi
609
633
        -rmdir $(CONFDIR)
610
634
 
611
635
.PHONY: purge-client