/mandos/release

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  • Committer: Teddy Hogeborn
  • Date: 2016-03-07 23:39:36 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 337.
  • Revision ID: teddy@recompile.se-20160307233936-mhgpxhggamde443n
Server bug fix: Include CAP_SETGID so it does not run as root

* debian/mandos.postinst (configure): If old version was 1.7.4-1 or
  1.7.4-1~bpo8+1, fix situation where clients.pickle file is owned by
  root.
* mandos (main): Print debug info about setuid() and setgid()
* mandos.service ([Service]/CapabilityBoundingSet): Add "CAP_KILL
  CAP_SETGID"; the latter is needed for setgid() to be allowed.

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Lines of Context:
Makefile
1
 
WARN=-O -Wall -Wformat=2 -Winit-self -Wmissing-include-dirs \
2
 
        -Wswitch-default -Wswitch-enum -Wunused-parameter \
3
 
        -Wstrict-aliasing=1 -Wextra -Wfloat-equal -Wundef -Wshadow \
 
1
WARN=-O -Wall -Wextra -Wdouble-promotion -Wformat=2 -Winit-self \
 
2
        -Wmissing-include-dirs -Wswitch-default -Wswitch-enum \
 
3
        -Wunused -Wuninitialized -Wstrict-overflow=5 \
 
4
        -Wsuggest-attribute=pure -Wsuggest-attribute=const \
 
5
        -Wsuggest-attribute=noreturn -Wfloat-equal -Wundef -Wshadow \
4
6
        -Wunsafe-loop-optimizations -Wpointer-arith \
5
7
        -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings \
6
 
        -Wconversion -Wstrict-prototypes -Wold-style-definition \
7
 
        -Wpacked -Wnested-externs -Winline -Wvolatile-register-var
8
 
#       -Wunreachable-code
 
8
        -Wconversion -Wlogical-op -Waggregate-return \
 
9
        -Wstrict-prototypes -Wold-style-definition \
 
10
        -Wmissing-format-attribute -Wnormalized=nfc -Wpacked \
 
11
        -Wredundant-decls -Wnested-externs -Winline -Wvla \
 
12
        -Wvolatile-register-var -Woverlength-strings
9
13
#DEBUG=-ggdb3
10
 
# For info about _FORTIFY_SOURCE, see
11
 
# <http://www.kernel.org/doc/man-pages/online/pages/man7/feature_test_macros.7.html>
 
14
# For info about _FORTIFY_SOURCE, see feature_test_macros(7)
12
15
# and <http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html>.
13
16
FORTIFY=-D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIC
 
17
# <https://developerblog.redhat.com/2014/10/16/gcc-undefined-behavior-sanitizer-ubsan/>
 
18
ALL_SANITIZE_OPTIONS:=-fsanitize=address -fsanitize=undefined \
 
19
        -fsanitize=shift -fsanitize=integer-divide-by-zero \
 
20
        -fsanitize=unreachable -fsanitize=vla-bound -fsanitize=null \
 
21
        -fsanitize=return -fsanitize=signed-integer-overflow \
 
22
        -fsanitize=bounds -fsanitize=alignment \
 
23
        -fsanitize=object-size -fsanitize=float-divide-by-zero \
 
24
        -fsanitize=float-cast-overflow -fsanitize=nonnull-attribute \
 
25
        -fsanitize=returns-nonnull-attribute -fsanitize=bool \
 
26
        -fsanitize=enum
 
27
# Check which sanitizing options can be used
 
28
SANITIZE:=$(foreach option,$(ALL_SANITIZE_OPTIONS),$(shell \
 
29
        echo 'int main(){}' | $(CC) --language=c $(option) /dev/stdin \
 
30
        -o /dev/null >/dev/null 2>&1 && echo $(option)))
14
31
LINK_FORTIFY_LD=-z relro -z now
15
32
LINK_FORTIFY=
16
33
 
20
37
LINK_FORTIFY += -pie
21
38
endif
22
39
#COVERAGE=--coverage
23
 
OPTIMIZE=-Os
24
 
LANGUAGE=-std=gnu99
 
40
OPTIMIZE=-Os -fno-strict-aliasing
 
41
LANGUAGE=-std=gnu11
25
42
htmldir=man
26
 
version=1.4.1
 
43
version=1.7.4
27
44
SED=sed
28
45
 
29
46
USER=$(firstword $(subst :, ,$(shell getent passwd _mandos || getent passwd nobody || echo 65534)))
30
 
GROUP=$(firstword $(subst :, ,$(shell getent group _mandos || getent group nobody || echo 65534)))
 
47
GROUP=$(firstword $(subst :, ,$(shell getent group _mandos || getent group nogroup || echo 65534)))
31
48
 
32
49
## Use these settings for a traditional /usr/local install
33
50
# PREFIX=$(DESTDIR)/usr/local
36
53
# MANDIR=$(PREFIX)/man
37
54
# INITRAMFSTOOLS=$(DESTDIR)/etc/initramfs-tools
38
55
# STATEDIR=$(DESTDIR)/var/lib/mandos
 
56
# LIBDIR=$(PREFIX)/lib
39
57
##
40
58
 
41
59
## These settings are for a package-type install
45
63
MANDIR=$(PREFIX)/share/man
46
64
INITRAMFSTOOLS=$(DESTDIR)/usr/share/initramfs-tools
47
65
STATEDIR=$(DESTDIR)/var/lib/mandos
 
66
LIBDIR=$(shell \
 
67
        for d in \
 
68
        "/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null`" \
 
69
        "`rpm --eval='%{_libdir}' 2>/dev/null`" /usr/lib; do \
 
70
                if [ -d "$$d" -a "$$d" = "$${d%/}" ]; then \
 
71
                        echo "$(DESTDIR)$$d"; \
 
72
                        break; \
 
73
                fi; \
 
74
        done)
48
75
##
49
76
 
 
77
SYSTEMD=$(DESTDIR)$(shell pkg-config systemd --variable=systemdsystemunitdir)
 
78
 
50
79
GNUTLS_CFLAGS=$(shell pkg-config --cflags-only-I gnutls)
51
80
GNUTLS_LIBS=$(shell pkg-config --libs gnutls)
52
81
AVAHI_CFLAGS=$(shell pkg-config --cflags-only-I avahi-core)
54
83
GPGME_CFLAGS=$(shell gpgme-config --cflags; getconf LFS_CFLAGS)
55
84
GPGME_LIBS=$(shell gpgme-config --libs; getconf LFS_LIBS; \
56
85
        getconf LFS_LDFLAGS)
 
86
LIBNL3_CFLAGS=$(shell pkg-config --cflags-only-I libnl-route-3.0)
 
87
LIBNL3_LIBS=$(shell pkg-config --libs libnl-route-3.0)
57
88
 
58
89
# Do not change these two
59
 
CFLAGS=$(WARN) $(DEBUG) $(FORTIFY) $(COVERAGE) $(OPTIMIZE) \
60
 
        $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) $(GPGME_CFLAGS) \
61
 
        -DVERSION='"$(version)"'
62
 
LDFLAGS=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
 
90
CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(SANITIZE) $(COVERAGE) \
 
91
        $(OPTIMIZE) $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) \
 
92
        $(GPGME_CFLAGS) -DVERSION='"$(version)"'
 
93
LDFLAGS+=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
63
94
 
64
95
# Commands to format a DocBook <refentry> document into a manual page
65
96
DOCBOOKTOMAN=$(strip cd $(dir $<); xsltproc --nonet --xinclude \
68
99
        --param make.single.year.ranges         1 \
69
100
        --param man.output.quietly              1 \
70
101
        --param man.authors.section.enabled     0 \
71
 
         /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
 
102
        /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
72
103
        $(notdir $<); \
73
 
        $(MANPOST) $(notdir $@);\
74
 
        LANG=en_US.UTF-8 MANWIDTH=80 man --warnings --encoding=UTF-8 \
75
 
        --local-file $(notdir $@) >/dev/null)
76
 
# DocBook-to-man post-processing to fix a '\n' escape bug
77
 
MANPOST=$(SED) --in-place --expression='s,\\\\en,\\en,g;s,\\n,\\en,g'
 
104
        if locale --all 2>/dev/null | grep --regexp='^en_US\.utf8$$' \
 
105
        && type man 2>/dev/null; then LANG=en_US.UTF-8 MANWIDTH=80 \
 
106
        man --warnings --encoding=UTF-8 --local-file $(notdir $@); \
 
107
        fi >/dev/null)
78
108
 
79
109
DOCBOOKTOHTML=$(strip xsltproc --nonet --xinclude \
80
110
        --param make.year.ranges                1 \
92
122
PLUGINS=plugins.d/password-prompt plugins.d/mandos-client \
93
123
        plugins.d/usplash plugins.d/splashy plugins.d/askpass-fifo \
94
124
        plugins.d/plymouth
95
 
CPROGS=plugin-runner $(PLUGINS)
 
125
PLUGIN_HELPERS=plugin-helpers/mandos-client-iprouteadddel
 
126
CPROGS=plugin-runner $(PLUGINS) $(PLUGIN_HELPERS)
96
127
PROGS=mandos mandos-keygen mandos-ctl mandos-monitor $(CPROGS)
97
128
DOCS=mandos.8 mandos-keygen.8 mandos-monitor.8 mandos-ctl.8 \
98
129
        mandos.conf.5 mandos-clients.conf.5 plugin-runner.8mandos \
225
256
        $(LINK.c) $^ -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
226
257
                ) $(GPGME_LIBS) $(LOADLIBES) $(LDLIBS) -o $@
227
258
 
228
 
.PHONY : all doc html clean distclean run-client run-server install \
229
 
        install-server install-client uninstall uninstall-server \
230
 
        uninstall-client purge purge-server purge-client
 
259
plugin-helpers/mandos-client-iprouteadddel: plugin-helpers/mandos-client-iprouteadddel.c
 
260
        $(LINK.c) $(LIBNL3_CFLAGS) $^ $(LIBNL3_LIBS) $(strip\
 
261
                ) $(LOADLIBES) $(LDLIBS) -o $@
 
262
 
 
263
.PHONY : all doc html clean distclean mostlyclean maintainer-clean \
 
264
        check run-client run-server install install-html \
 
265
        install-server install-client-nokey install-client uninstall \
 
266
        uninstall-server uninstall-client purge purge-server \
 
267
        purge-client
231
268
 
232
269
clean:
233
270
        -rm --force $(CPROGS) $(objects) $(htmldocs) $(DOCS) core
239
276
 
240
277
check:  all
241
278
        ./mandos --check
 
279
        ./mandos-ctl --check
242
280
 
243
281
# Run the client with a local config and key
244
282
run-client: all keydir/seckey.txt keydir/pubkey.txt
247
285
        @echo "# ignored.  The messages are caused by not running as root, but   #"
248
286
        @echo "# you should NOT run \"make run-client\" as root unless you also    #"
249
287
        @echo "# unpacked and compiled Mandos as root, which is NOT recommended. #"
250
 
        @echo "# From plugin-runner: setuid: Operation not permitted             #"
 
288
        @echo "# From plugin-runner: setgid: Operation not permitted             #"
 
289
        @echo "#                     setuid: Operation not permitted             #"
251
290
        @echo "# From askpass-fifo:  mkfifo: Permission denied                   #"
252
 
        @echo "# From mandos-client: setuid: Operation not permitted             #"
253
 
        @echo "#                     seteuid: Operation not permitted            #"
254
 
        @echo "#                     klogctl: Operation not permitted            #"
 
291
        @echo "# From mandos-client:                                             #"
 
292
        @echo "#             Failed to raise privileges: Operation not permitted #"
 
293
        @echo "#             Warning: network hook \"*\" exited with status *      #"
255
294
        @echo "###################################################################"
 
295
# We set GNOME_KEYRING_CONTROL to block pam_gnome_keyring
256
296
        ./plugin-runner --plugin-dir=plugins.d \
 
297
                --plugin-helper-dir=plugin-helpers \
257
298
                --config-file=plugin-runner.conf \
258
299
                --options-for=mandos-client:--seckey=keydir/seckey.txt,--pubkey=keydir/pubkey.txt,--network-hook-dir=network-hooks.d \
 
300
                --env-for=mandos-client:GNOME_KEYRING_CONTROL= \
259
301
                $(CLIENTARGS)
260
302
 
261
303
# Used by run-client
264
306
        ./mandos-keygen --dir keydir --force
265
307
 
266
308
# Run the server with a local config
267
 
run-server: confdir/mandos.conf confdir/clients.conf
 
309
run-server: confdir/mandos.conf confdir/clients.conf statedir
268
310
        ./mandos --debug --no-dbus --configdir=confdir \
269
311
                --statedir=statedir $(SERVERARGS)
270
312
 
276
318
        install --directory confdir
277
319
        install --mode=u=rw $< $@
278
320
# Add a client password
279
 
        ./mandos-keygen --dir keydir --password >> $@
 
321
        ./mandos-keygen --dir keydir --password --no-ssh >> $@
280
322
statedir:
281
323
        install --directory statedir
282
324
 
289
331
 
290
332
install-server: doc
291
333
        install --directory $(CONFDIR)
292
 
        install --directory --mode=u=rwx --owner=$(USER) \
293
 
                --group=$(GROUP) $(STATEDIR)
 
334
        if install --directory --mode=u=rwx --owner=$(USER) \
 
335
                --group=$(GROUP) $(STATEDIR); then \
 
336
                :; \
 
337
        elif install --directory --mode=u=rwx $(STATEDIR); then \
 
338
                chown -- $(USER):$(GROUP) $(STATEDIR) || :; \
 
339
        fi
294
340
        install --mode=u=rwx,go=rx mandos $(PREFIX)/sbin/mandos
295
341
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
296
342
                mandos-ctl
304
350
                $(DESTDIR)/etc/dbus-1/system.d/mandos.conf
305
351
        install --mode=u=rwx,go=rx init.d-mandos \
306
352
                $(DESTDIR)/etc/init.d/mandos
 
353
        if [ "$(SYSTEMD)" != "$(DESTDIR)" -a -d "$(SYSTEMD)" ]; then \
 
354
                install --mode=u=rw,go=r mandos.service $(SYSTEMD); \
 
355
        fi
307
356
        install --mode=u=rw,go=r default-mandos \
308
357
                $(DESTDIR)/etc/default/mandos
309
358
        if [ -z $(DESTDIR) ]; then \
319
368
                > $(MANDIR)/man5/mandos.conf.5.gz
320
369
        gzip --best --to-stdout mandos-clients.conf.5 \
321
370
                > $(MANDIR)/man5/mandos-clients.conf.5.gz
 
371
        gzip --best --to-stdout intro.8mandos \
 
372
                > $(MANDIR)/man8/intro.8mandos.gz
322
373
 
323
374
install-client-nokey: all doc
324
 
        install --directory $(PREFIX)/lib/mandos $(CONFDIR)
 
375
        install --directory $(LIBDIR)/mandos $(CONFDIR)
325
376
        install --directory --mode=u=rwx $(KEYDIR) \
326
 
                $(PREFIX)/lib/mandos/plugins.d
327
 
        if [ "$(CONFDIR)" != "$(PREFIX)/lib/mandos" ]; then \
 
377
                $(LIBDIR)/mandos/plugins.d \
 
378
                $(LIBDIR)/mandos/plugin-helpers
 
379
        if [ "$(CONFDIR)" != "$(LIBDIR)/mandos" ]; then \
328
380
                install --mode=u=rwx \
329
381
                        --directory "$(CONFDIR)/plugins.d"; \
 
382
                install --directory "$(CONFDIR)/plugin-helpers"; \
330
383
        fi
331
384
        install --mode=u=rwx,go=rx --directory \
332
385
                "$(CONFDIR)/network-hooks.d"
333
386
        install --mode=u=rwx,go=rx \
334
 
                --target-directory=$(PREFIX)/lib/mandos plugin-runner
 
387
                --target-directory=$(LIBDIR)/mandos plugin-runner
335
388
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
336
389
                mandos-keygen
337
390
        install --mode=u=rwx,go=rx \
338
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
391
                --target-directory=$(LIBDIR)/mandos/plugins.d \
339
392
                plugins.d/password-prompt
340
393
        install --mode=u=rwxs,go=rx \
341
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
394
                --target-directory=$(LIBDIR)/mandos/plugins.d \
342
395
                plugins.d/mandos-client
343
396
        install --mode=u=rwxs,go=rx \
344
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
397
                --target-directory=$(LIBDIR)/mandos/plugins.d \
345
398
                plugins.d/usplash
346
399
        install --mode=u=rwxs,go=rx \
347
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
400
                --target-directory=$(LIBDIR)/mandos/plugins.d \
348
401
                plugins.d/splashy
349
402
        install --mode=u=rwxs,go=rx \
350
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
403
                --target-directory=$(LIBDIR)/mandos/plugins.d \
351
404
                plugins.d/askpass-fifo
352
405
        install --mode=u=rwxs,go=rx \
353
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
406
                --target-directory=$(LIBDIR)/mandos/plugins.d \
354
407
                plugins.d/plymouth
 
408
        install --mode=u=rwxs,go=rx \
 
409
                --target-directory=$(LIBDIR)/mandos/plugin-helpers \
 
410
                plugin-helpers/mandos-client-iprouteadddel
355
411
        install initramfs-tools-hook \
356
412
                $(INITRAMFSTOOLS)/hooks/mandos
357
413
        install --mode=u=rw,go=r initramfs-tools-hook-conf \
402
458
        ! grep --regexp='^ *[^ #].*keyscript=[^,=]*/mandos/' \
403
459
                $(DESTDIR)/etc/crypttab
404
460
        -rm --force $(PREFIX)/sbin/mandos-keygen \
405
 
                $(PREFIX)/lib/mandos/plugin-runner \
406
 
                $(PREFIX)/lib/mandos/plugins.d/password-prompt \
407
 
                $(PREFIX)/lib/mandos/plugins.d/mandos-client \
408
 
                $(PREFIX)/lib/mandos/plugins.d/usplash \
409
 
                $(PREFIX)/lib/mandos/plugins.d/splashy \
410
 
                $(PREFIX)/lib/mandos/plugins.d/askpass-fifo \
411
 
                $(PREFIX)/lib/mandos/plugins.d/plymouth \
 
461
                $(LIBDIR)/mandos/plugin-runner \
 
462
                $(LIBDIR)/mandos/plugins.d/password-prompt \
 
463
                $(LIBDIR)/mandos/plugins.d/mandos-client \
 
464
                $(LIBDIR)/mandos/plugins.d/usplash \
 
465
                $(LIBDIR)/mandos/plugins.d/splashy \
 
466
                $(LIBDIR)/mandos/plugins.d/askpass-fifo \
 
467
                $(LIBDIR)/mandos/plugins.d/plymouth \
412
468
                $(INITRAMFSTOOLS)/hooks/mandos \
413
469
                $(INITRAMFSTOOLS)/conf-hooks.d/mandos \
414
470
                $(INITRAMFSTOOLS)/scripts/init-premount/mandos \
420
476
                $(MANDIR)/man8/splashy.8mandos.gz \
421
477
                $(MANDIR)/man8/askpass-fifo.8mandos.gz \
422
478
                $(MANDIR)/man8/plymouth.8mandos.gz \
423
 
        -rmdir $(PREFIX)/lib/mandos/plugins.d $(CONFDIR)/plugins.d \
424
 
                 $(PREFIX)/lib/mandos $(CONFDIR) $(KEYDIR)
 
479
        -rmdir $(LIBDIR)/mandos/plugins.d $(CONFDIR)/plugins.d \
 
480
                 $(LIBDIR)/mandos $(CONFDIR) $(KEYDIR)
425
481
        update-initramfs -k all -u
426
482
 
427
483
purge: purge-server purge-client
431
487
                $(DESTDIR)/etc/dbus-1/system.d/mandos.conf
432
488
                $(DESTDIR)/etc/default/mandos \
433
489
                $(DESTDIR)/etc/init.d/mandos \
 
490
                $(SYSTEMD)/mandos.service \
 
491
                $(DESTDIR)/run/mandos.pid \
434
492
                $(DESTDIR)/var/run/mandos.pid
435
493
        -rmdir $(CONFDIR)
436
494