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  • Committer: Teddy Hogeborn
  • Date: 2019-02-11 05:14:10 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 376.
  • Revision ID: teddy@recompile.se-20190211051410-43fmzhy0vlafw2pc
Fix warnings from -Wimplicit-fallthrough

* plugin-runner.c (main/parse_opt): Add __builtin_unreachable() after
                                    calls to argp_state_help().
* plugins.d/askpass-fifo.c (error_plus): Add __builtin_unreachable()
                                         after calls to error().
* plugins.d/mandos-client.c (main/parse_opt) Add
                                             __builtin_unreachable()
                                             after calls to
                                             argp_state_help().
* plugins.d/password-prompt.c: - '' -

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added added

removed removed

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
9
 
#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>
12
 
# and <http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html>.
13
 
FORTIFY=-D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIC
14
 
LINK_FORTIFY_LD=-z relro -z now
15
 
LINK_FORTIFY=
 
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
 
13
#DEBUG:=-ggdb3 -fsanitize=address 
 
14
# For info about _FORTIFY_SOURCE, see feature_test_macros(7)
 
15
# and <https://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html>.
 
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=leak -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)))
 
31
LINK_FORTIFY_LD:=-z relro -z now
 
32
LINK_FORTIFY:=
16
33
 
17
34
# If BROKEN_PIE is set, do not build with -pie
18
35
ifndef BROKEN_PIE
20
37
LINK_FORTIFY += -pie
21
38
endif
22
39
#COVERAGE=--coverage
23
 
OPTIMIZE=-Os
24
 
LANGUAGE=-std=gnu99
25
 
htmldir=man
26
 
version=1.6.2
27
 
SED=sed
 
40
OPTIMIZE:=-Os -fno-strict-aliasing
 
41
LANGUAGE:=-std=gnu11
 
42
htmldir:=man
 
43
version:=1.8.2
 
44
SED:=sed
28
45
 
29
 
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)))
 
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)))
31
48
 
32
49
## Use these settings for a traditional /usr/local install
33
 
# PREFIX=$(DESTDIR)/usr/local
34
 
# CONFDIR=$(DESTDIR)/etc/mandos
35
 
# KEYDIR=$(DESTDIR)/etc/mandos/keys
36
 
# MANDIR=$(PREFIX)/man
37
 
# INITRAMFSTOOLS=$(DESTDIR)/etc/initramfs-tools
38
 
# STATEDIR=$(DESTDIR)/var/lib/mandos
39
 
# LIBDIR=$(PREFIX)/lib
 
50
# PREFIX:=$(DESTDIR)/usr/local
 
51
# CONFDIR:=$(DESTDIR)/etc/mandos
 
52
# KEYDIR:=$(DESTDIR)/etc/mandos/keys
 
53
# MANDIR:=$(PREFIX)/man
 
54
# INITRAMFSTOOLS:=$(DESTDIR)/etc/initramfs-tools
 
55
# STATEDIR:=$(DESTDIR)/var/lib/mandos
 
56
# LIBDIR:=$(PREFIX)/lib
40
57
##
41
58
 
42
59
## These settings are for a package-type install
43
 
PREFIX=$(DESTDIR)/usr
44
 
CONFDIR=$(DESTDIR)/etc/mandos
45
 
KEYDIR=$(DESTDIR)/etc/keys/mandos
46
 
MANDIR=$(PREFIX)/share/man
47
 
INITRAMFSTOOLS=$(DESTDIR)/usr/share/initramfs-tools
48
 
STATEDIR=$(DESTDIR)/var/lib/mandos
49
 
LIBDIR=$(shell \
 
60
PREFIX:=$(DESTDIR)/usr
 
61
CONFDIR:=$(DESTDIR)/etc/mandos
 
62
KEYDIR:=$(DESTDIR)/etc/keys/mandos
 
63
MANDIR:=$(PREFIX)/share/man
 
64
INITRAMFSTOOLS:=$(DESTDIR)/usr/share/initramfs-tools
 
65
STATEDIR:=$(DESTDIR)/var/lib/mandos
 
66
LIBDIR:=$(shell \
50
67
        for d in \
51
68
        "/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null`" \
52
69
        "`rpm --eval='%{_libdir}' 2>/dev/null`" /usr/lib; do \
57
74
        done)
58
75
##
59
76
 
60
 
SYSTEMD=$(DESTDIR)$(shell pkg-config systemd --variable=systemdsystemunitdir)
 
77
SYSTEMD:=$(DESTDIR)$(shell pkg-config systemd --variable=systemdsystemunitdir)
 
78
TMPFILES:=$(DESTDIR)$(shell pkg-config systemd --variable=tmpfilesdir)
61
79
 
62
 
GNUTLS_CFLAGS=$(shell pkg-config --cflags-only-I gnutls)
63
 
GNUTLS_LIBS=$(shell pkg-config --libs gnutls)
64
 
AVAHI_CFLAGS=$(shell pkg-config --cflags-only-I avahi-core)
65
 
AVAHI_LIBS=$(shell pkg-config --libs avahi-core)
66
 
GPGME_CFLAGS=$(shell gpgme-config --cflags; getconf LFS_CFLAGS)
67
 
GPGME_LIBS=$(shell gpgme-config --libs; getconf LFS_LIBS; \
 
80
GNUTLS_CFLAGS:=$(shell pkg-config --cflags-only-I gnutls)
 
81
GNUTLS_LIBS:=$(shell pkg-config --libs gnutls)
 
82
AVAHI_CFLAGS:=$(shell pkg-config --cflags-only-I avahi-core)
 
83
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; \
68
86
        getconf LFS_LDFLAGS)
 
87
LIBNL3_CFLAGS:=$(shell pkg-config --cflags-only-I libnl-route-3.0)
 
88
LIBNL3_LIBS:=$(shell pkg-config --libs libnl-route-3.0)
69
89
 
70
90
# Do not change these two
71
 
CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(COVERAGE) $(OPTIMIZE) \
72
 
        $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) $(GPGME_CFLAGS) \
73
 
        -DVERSION='"$(version)"'
 
91
CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(SANITIZE) $(COVERAGE) \
 
92
        $(OPTIMIZE) $(LANGUAGE) -DVERSION='"$(version)"'
74
93
LDFLAGS+=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
75
94
 
76
95
# Commands to format a DocBook <refentry> document into a manual page
82
101
        --param man.authors.section.enabled     0 \
83
102
        /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
84
103
        $(notdir $<); \
85
 
        $(MANPOST) $(notdir $@);\
86
104
        if locale --all 2>/dev/null | grep --regexp='^en_US\.utf8$$' \
87
105
        && type man 2>/dev/null; then LANG=en_US.UTF-8 MANWIDTH=80 \
88
106
        man --warnings --encoding=UTF-8 --local-file $(notdir $@); \
89
107
        fi >/dev/null)
90
 
# DocBook-to-man post-processing to fix a '\n' escape bug
91
 
MANPOST=$(SED) --in-place --expression='s,\\\\en,\\en,g;s,\\n,\\en,g'
92
108
 
93
109
DOCBOOKTOHTML=$(strip xsltproc --nonet --xinclude \
94
110
        --param make.year.ranges                1 \
100
116
        /usr/share/xml/docbook/stylesheet/nwalsh/xhtml/docbook.xsl \
101
117
        $<; $(HTMLPOST) $@)
102
118
# Fix citerefentry links
103
 
HTMLPOST=$(SED) --in-place \
 
119
HTMLPOST:=$(SED) --in-place \
104
120
        --expression='s/\(<a class="citerefentry" href="\)\("><span class="citerefentry"><span class="refentrytitle">\)\([^<]*\)\(<\/span>(\)\([^)]*\)\()<\/span><\/a>\)/\1\3.\5\2\3\4\5\6/g'
105
121
 
106
 
PLUGINS=plugins.d/password-prompt plugins.d/mandos-client \
 
122
PLUGINS:=plugins.d/password-prompt plugins.d/mandos-client \
107
123
        plugins.d/usplash plugins.d/splashy plugins.d/askpass-fifo \
108
124
        plugins.d/plymouth
109
 
CPROGS=plugin-runner $(PLUGINS)
110
 
PROGS=mandos mandos-keygen mandos-ctl mandos-monitor $(CPROGS)
111
 
DOCS=mandos.8 mandos-keygen.8 mandos-monitor.8 mandos-ctl.8 \
 
125
PLUGIN_HELPERS:=plugin-helpers/mandos-client-iprouteadddel
 
126
CPROGS:=plugin-runner $(PLUGINS) $(PLUGIN_HELPERS)
 
127
PROGS:=mandos mandos-keygen mandos-ctl mandos-monitor $(CPROGS)
 
128
DOCS:=mandos.8 mandos-keygen.8 mandos-monitor.8 mandos-ctl.8 \
112
129
        mandos.conf.5 mandos-clients.conf.5 plugin-runner.8mandos \
113
130
        plugins.d/mandos-client.8mandos \
114
131
        plugins.d/password-prompt.8mandos plugins.d/usplash.8mandos \
115
132
        plugins.d/splashy.8mandos plugins.d/askpass-fifo.8mandos \
116
133
        plugins.d/plymouth.8mandos intro.8mandos
117
134
 
118
 
htmldocs=$(addsuffix .xhtml,$(DOCS))
 
135
htmldocs:=$(addsuffix .xhtml,$(DOCS))
119
136
 
120
 
objects=$(addsuffix .o,$(CPROGS))
 
137
objects:=$(addsuffix .o,$(CPROGS))
121
138
 
122
139
all: $(PROGS) mandos.lsm
123
140
 
235
252
                --expression='s/\(mandos_\)[0-9.]\+\(\.orig\.tar\.gz\)/\1$(version)\2/' \
236
253
                $@)
237
254
 
 
255
# Need to add the GnuTLS, Avahi and GPGME libraries, and can't use
 
256
# -fsanitize=leak because GnuTLS and GPGME both leak memory.
238
257
plugins.d/mandos-client: plugins.d/mandos-client.c
239
 
        $(LINK.c) $^ -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
 
258
        $(CC) $(filter-out -fsanitize=leak,$(CFLAGS)) $(strip\
 
259
        ) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) $(GPGME_CFLAGS) $(strip\
 
260
                ) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(strip\
 
261
                ) -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
240
262
                ) $(GPGME_LIBS) $(LOADLIBES) $(LDLIBS) -o $@
241
263
 
242
 
.PHONY : all doc html clean distclean run-client run-server install \
243
 
        install-server install-client uninstall uninstall-server \
244
 
        uninstall-client purge purge-server purge-client
 
264
plugin-helpers/mandos-client-iprouteadddel: plugin-helpers/mandos-client-iprouteadddel.c
 
265
        $(LINK.c) $(LIBNL3_CFLAGS) $^ $(LIBNL3_LIBS) $(strip\
 
266
                ) $(LOADLIBES) $(LDLIBS) -o $@
 
267
 
 
268
.PHONY : all doc html clean distclean mostlyclean maintainer-clean \
 
269
        check run-client run-server install install-html \
 
270
        install-server install-client-nokey install-client uninstall \
 
271
        uninstall-server uninstall-client purge purge-server \
 
272
        purge-client
245
273
 
246
274
clean:
247
275
        -rm --force $(CPROGS) $(objects) $(htmldocs) $(DOCS) core
256
284
        ./mandos-ctl --check
257
285
 
258
286
# Run the client with a local config and key
259
 
run-client: all keydir/seckey.txt keydir/pubkey.txt
 
287
run-client: all keydir/seckey.txt keydir/pubkey.txt keydir/tls-privkey.pem keydir/tls-pubkey.pem
260
288
        @echo "###################################################################"
261
289
        @echo "# The following error messages are harmless and can be safely     #"
262
 
        @echo "# ignored.  The messages are caused by not running as root, but   #"
263
 
        @echo "# you should NOT run \"make run-client\" as root unless you also    #"
264
 
        @echo "# unpacked and compiled Mandos as root, which is NOT recommended. #"
265
 
        @echo "# From plugin-runner: setuid: Operation not permitted             #"
 
290
        @echo "# ignored:                                                        #"
 
291
        @echo "# From plugin-runner: setgid: Operation not permitted             #"
 
292
        @echo "#                     setuid: Operation not permitted             #"
266
293
        @echo "# From askpass-fifo:  mkfifo: Permission denied                   #"
267
 
        @echo "# From mandos-client: setuid: Operation not permitted             #"
268
 
        @echo "#                     seteuid: Operation not permitted            #"
269
 
        @echo "#                     klogctl: Operation not permitted            #"
 
294
        @echo "# From mandos-client:                                             #"
 
295
        @echo "#             Failed to raise privileges: Operation not permitted #"
 
296
        @echo "#             Warning: network hook \"*\" exited with status *      #"
 
297
        @echo "#                                                                 #"
 
298
        @echo "# (The messages are caused by not running as root, but you should #"
 
299
        @echo "# NOT run \"make run-client\" as root unless you also unpacked and  #"
 
300
        @echo "# compiled Mandos as root, which is also NOT recommended.)        #"
270
301
        @echo "###################################################################"
 
302
# We set GNOME_KEYRING_CONTROL to block pam_gnome_keyring
271
303
        ./plugin-runner --plugin-dir=plugins.d \
 
304
                --plugin-helper-dir=plugin-helpers \
272
305
                --config-file=plugin-runner.conf \
273
 
                --options-for=mandos-client:--seckey=keydir/seckey.txt,--pubkey=keydir/pubkey.txt,--network-hook-dir=network-hooks.d \
 
306
                --options-for=mandos-client:--seckey=keydir/seckey.txt,--pubkey=keydir/pubkey.txt,--tls-privkey=keydir/tls-privkey.pem,--tls-pubkey=keydir/tls-pubkey.pem,--network-hook-dir=network-hooks.d \
 
307
                --env-for=mandos-client:GNOME_KEYRING_CONTROL= \
274
308
                $(CLIENTARGS)
275
309
 
276
310
# Used by run-client
277
 
keydir/seckey.txt keydir/pubkey.txt: mandos-keygen
 
311
keydir/seckey.txt keydir/pubkey.txt keydir/tls-privkey.pem keydir/tls-pubkey.pem: mandos-keygen
278
312
        install --directory keydir
279
313
        ./mandos-keygen --dir keydir --force
280
314
 
287
321
confdir/mandos.conf: mandos.conf
288
322
        install --directory confdir
289
323
        install --mode=u=rw,go=r $^ $@
290
 
confdir/clients.conf: clients.conf keydir/seckey.txt
 
324
confdir/clients.conf: clients.conf keydir/seckey.txt keydir/tls-pubkey.pem
291
325
        install --directory confdir
292
326
        install --mode=u=rw $< $@
293
327
# Add a client password
294
 
        ./mandos-keygen --dir keydir --password >> $@
 
328
        ./mandos-keygen --dir keydir --password --no-ssh >> $@
295
329
statedir:
296
330
        install --directory statedir
297
331
 
304
338
 
305
339
install-server: doc
306
340
        install --directory $(CONFDIR)
307
 
        install --directory --mode=u=rwx --owner=$(USER) \
308
 
                --group=$(GROUP) $(STATEDIR)
 
341
        if install --directory --mode=u=rwx --owner=$(USER) \
 
342
                --group=$(GROUP) $(STATEDIR); then \
 
343
                :; \
 
344
        elif install --directory --mode=u=rwx $(STATEDIR); then \
 
345
                chown -- $(USER):$(GROUP) $(STATEDIR) || :; \
 
346
        fi
 
347
        if [ "$(TMPFILES)" != "$(DESTDIR)" -a -d "$(TMPFILES)" ]; then \
 
348
                install --mode=u=rw,go=r tmpfiles.d-mandos.conf \
 
349
                        $(TMPFILES)/mandos.conf; \
 
350
        fi
309
351
        install --mode=u=rwx,go=rx mandos $(PREFIX)/sbin/mandos
310
352
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
311
353
                mandos-ctl
343
385
install-client-nokey: all doc
344
386
        install --directory $(LIBDIR)/mandos $(CONFDIR)
345
387
        install --directory --mode=u=rwx $(KEYDIR) \
346
 
                $(LIBDIR)/mandos/plugins.d
 
388
                $(LIBDIR)/mandos/plugins.d \
 
389
                $(LIBDIR)/mandos/plugin-helpers
347
390
        if [ "$(CONFDIR)" != "$(LIBDIR)/mandos" ]; then \
348
391
                install --mode=u=rwx \
349
 
                        --directory "$(CONFDIR)/plugins.d"; \
 
392
                        --directory "$(CONFDIR)/plugins.d" \
 
393
                        "$(CONFDIR)/plugin-helpers"; \
350
394
        fi
351
395
        install --mode=u=rwx,go=rx --directory \
352
396
                "$(CONFDIR)/network-hooks.d"
353
397
        install --mode=u=rwx,go=rx \
354
398
                --target-directory=$(LIBDIR)/mandos plugin-runner
 
399
        install --mode=u=rwx,go=rx \
 
400
                --target-directory=$(LIBDIR)/mandos mandos-to-cryptroot-unlock
355
401
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
356
402
                mandos-keygen
357
403
        install --mode=u=rwx,go=rx \
372
418
        install --mode=u=rwxs,go=rx \
373
419
                --target-directory=$(LIBDIR)/mandos/plugins.d \
374
420
                plugins.d/plymouth
 
421
        install --mode=u=rwx,go=rx \
 
422
                --target-directory=$(LIBDIR)/mandos/plugin-helpers \
 
423
                plugin-helpers/mandos-client-iprouteadddel
375
424
        install initramfs-tools-hook \
376
425
                $(INITRAMFSTOOLS)/hooks/mandos
377
 
        install --mode=u=rw,go=r initramfs-tools-hook-conf \
378
 
                $(INITRAMFSTOOLS)/conf-hooks.d/mandos
 
426
        install --mode=u=rw,go=r initramfs-tools-conf \
 
427
                $(INITRAMFSTOOLS)/conf.d/mandos-conf
379
428
        install initramfs-tools-script \
380
429
                $(INITRAMFSTOOLS)/scripts/init-premount/mandos
 
430
        install initramfs-tools-script-stop \
 
431
                $(INITRAMFSTOOLS)/scripts/local-premount/mandos
381
432
        install --mode=u=rw,go=r plugin-runner.conf $(CONFDIR)
382
433
        gzip --best --to-stdout mandos-keygen.8 \
383
434
                > $(MANDIR)/man8/mandos-keygen.8.gz
457
508
        -rmdir $(CONFDIR)
458
509
 
459
510
purge-client: uninstall-client
460
 
        -shred --remove $(KEYDIR)/seckey.txt
 
511
        -shred --remove $(KEYDIR)/seckey.txt $(KEYDIR)/tls-privkey.pem
461
512
        -rm --force $(CONFDIR)/plugin-runner.conf \
462
 
                $(KEYDIR)/pubkey.txt $(KEYDIR)/seckey.txt
 
513
                $(KEYDIR)/pubkey.txt $(KEYDIR)/seckey.txt \
 
514
                $(KEYDIR)/tls-pubkey.txt $(KEYDIR)/tls-privkey.txt
463
515
        -rmdir $(KEYDIR) $(CONFDIR)/plugins.d $(CONFDIR)