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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
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
# The sanitizing options are available in GCC 4.9 and above.
 
19
ifeq ($(shell test $(shell $(CC) -dumpversion) \> 4.9-; echo $$?),0)
 
20
SANITIZE:=-fsanitize=address -fsanitize=undefined -fsanitize=shift \
 
21
        -fsanitize=integer-divide-by-zero -fsanitize=unreachable \
 
22
        -fsanitize=vla-bound -fsanitize=null -fsanitize=return \
 
23
        -fsanitize=signed-integer-overflow
 
24
# GCC 5.3 has some more sanitizing options
 
25
ifeq ($(shell test $(shell $(CC) -dumpversion) \> 5.3-; echo $$?),0)
 
26
SANITIZE+=-fsanitize=bounds -fsanitize=alignment \
 
27
        -fsanitize=object-size -fsanitize=float-divide-by-zero \
 
28
        -fsanitize=float-cast-overflow -fsanitize=nonnull-attribute \
 
29
        -fsanitize=returns-nonnull-attribute -fsanitize=bool \
 
30
        -fsanitize=enum
 
31
endif
 
32
else
 
33
SANITIZE:=
 
34
endif
14
35
LINK_FORTIFY_LD=-z relro -z now
15
36
LINK_FORTIFY=
16
37
 
20
41
LINK_FORTIFY += -pie
21
42
endif
22
43
#COVERAGE=--coverage
23
 
OPTIMIZE=-Os
24
 
LANGUAGE=-std=gnu99
 
44
OPTIMIZE=-Os -fno-strict-aliasing
 
45
LANGUAGE=-std=gnu11
25
46
htmldir=man
26
 
version=1.4.1
 
47
version=1.7.1
27
48
SED=sed
28
49
 
 
50
USER=$(firstword $(subst :, ,$(shell getent passwd _mandos || getent passwd nobody || echo 65534)))
 
51
GROUP=$(firstword $(subst :, ,$(shell getent group _mandos || getent group nobody || echo 65534)))
 
52
 
29
53
## Use these settings for a traditional /usr/local install
30
54
# PREFIX=$(DESTDIR)/usr/local
31
55
# CONFDIR=$(DESTDIR)/etc/mandos
32
56
# KEYDIR=$(DESTDIR)/etc/mandos/keys
33
57
# MANDIR=$(PREFIX)/man
34
58
# INITRAMFSTOOLS=$(DESTDIR)/etc/initramfs-tools
 
59
# STATEDIR=$(DESTDIR)/var/lib/mandos
 
60
# LIBDIR=$(PREFIX)/lib
35
61
##
36
62
 
37
63
## These settings are for a package-type install
40
66
KEYDIR=$(DESTDIR)/etc/keys/mandos
41
67
MANDIR=$(PREFIX)/share/man
42
68
INITRAMFSTOOLS=$(DESTDIR)/usr/share/initramfs-tools
 
69
STATEDIR=$(DESTDIR)/var/lib/mandos
 
70
LIBDIR=$(shell \
 
71
        for d in \
 
72
        "/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null`" \
 
73
        "`rpm --eval='%{_libdir}' 2>/dev/null`" /usr/lib; do \
 
74
                if [ -d "$$d" -a "$$d" = "$${d%/}" ]; then \
 
75
                        echo "$(DESTDIR)$$d"; \
 
76
                        break; \
 
77
                fi; \
 
78
        done)
43
79
##
44
80
 
 
81
SYSTEMD=$(DESTDIR)$(shell pkg-config systemd --variable=systemdsystemunitdir)
 
82
 
45
83
GNUTLS_CFLAGS=$(shell pkg-config --cflags-only-I gnutls)
46
84
GNUTLS_LIBS=$(shell pkg-config --libs gnutls)
47
85
AVAHI_CFLAGS=$(shell pkg-config --cflags-only-I avahi-core)
49
87
GPGME_CFLAGS=$(shell gpgme-config --cflags; getconf LFS_CFLAGS)
50
88
GPGME_LIBS=$(shell gpgme-config --libs; getconf LFS_LIBS; \
51
89
        getconf LFS_LDFLAGS)
 
90
LIBNL3_CFLAGS=$(shell pkg-config --cflags-only-I libnl-route-3.0)
 
91
LIBNL3_LIBS=$(shell pkg-config --libs libnl-route-3.0)
52
92
 
53
93
# Do not change these two
54
 
CFLAGS=$(WARN) $(DEBUG) $(FORTIFY) $(COVERAGE) $(OPTIMIZE) \
55
 
        $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) $(GPGME_CFLAGS) \
56
 
        -DVERSION='"$(version)"'
57
 
LDFLAGS=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
 
94
CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(SANITIZE) $(COVERAGE) \
 
95
        $(OPTIMIZE) $(LANGUAGE) $(GNUTLS_CFLAGS) $(AVAHI_CFLAGS) \
 
96
        $(GPGME_CFLAGS) -DVERSION='"$(version)"'
 
97
LDFLAGS+=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
58
98
 
59
99
# Commands to format a DocBook <refentry> document into a manual page
60
100
DOCBOOKTOMAN=$(strip cd $(dir $<); xsltproc --nonet --xinclude \
63
103
        --param make.single.year.ranges         1 \
64
104
        --param man.output.quietly              1 \
65
105
        --param man.authors.section.enabled     0 \
66
 
         /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
 
106
        /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
67
107
        $(notdir $<); \
68
 
        $(MANPOST) $(notdir $@);\
69
 
        LANG=en_US.UTF-8 MANWIDTH=80 man --warnings --encoding=UTF-8 \
70
 
        --local-file $(notdir $@) >/dev/null)
71
 
# DocBook-to-man post-processing to fix a '\n' escape bug
72
 
MANPOST=$(SED) --in-place --expression='s,\\\\en,\\en,g;s,\\n,\\en,g'
 
108
        if locale --all 2>/dev/null | grep --regexp='^en_US\.utf8$$' \
 
109
        && type man 2>/dev/null; then LANG=en_US.UTF-8 MANWIDTH=80 \
 
110
        man --warnings --encoding=UTF-8 --local-file $(notdir $@); \
 
111
        fi >/dev/null)
73
112
 
74
113
DOCBOOKTOHTML=$(strip xsltproc --nonet --xinclude \
75
114
        --param make.year.ranges                1 \
87
126
PLUGINS=plugins.d/password-prompt plugins.d/mandos-client \
88
127
        plugins.d/usplash plugins.d/splashy plugins.d/askpass-fifo \
89
128
        plugins.d/plymouth
90
 
CPROGS=plugin-runner $(PLUGINS)
 
129
PLUGIN_HELPERS=plugin-helpers/mandos-client-iprouteadddel
 
130
CPROGS=plugin-runner $(PLUGINS) $(PLUGIN_HELPERS)
91
131
PROGS=mandos mandos-keygen mandos-ctl mandos-monitor $(CPROGS)
92
132
DOCS=mandos.8 mandos-keygen.8 mandos-monitor.8 mandos-ctl.8 \
93
133
        mandos.conf.5 mandos-clients.conf.5 plugin-runner.8mandos \
220
260
        $(LINK.c) $^ -lrt $(GNUTLS_LIBS) $(AVAHI_LIBS) $(strip\
221
261
                ) $(GPGME_LIBS) $(LOADLIBES) $(LDLIBS) -o $@
222
262
 
223
 
.PHONY : all doc html clean distclean run-client run-server install \
224
 
        install-server install-client uninstall uninstall-server \
225
 
        uninstall-client purge purge-server purge-client
 
263
plugin-helpers/mandos-client-iprouteadddel: plugin-helpers/mandos-client-iprouteadddel.c
 
264
        $(LINK.c) $(LIBNL3_CFLAGS) $^ $(LIBNL3_LIBS) $(strip\
 
265
                ) $(LOADLIBES) $(LDLIBS) -o $@
 
266
 
 
267
.PHONY : all doc html clean distclean mostlyclean maintainer-clean \
 
268
        check run-client run-server install install-html \
 
269
        install-server install-client-nokey install-client uninstall \
 
270
        uninstall-server uninstall-client purge purge-server \
 
271
        purge-client
226
272
 
227
273
clean:
228
274
        -rm --force $(CPROGS) $(objects) $(htmldocs) $(DOCS) core
230
276
distclean: clean
231
277
mostlyclean: clean
232
278
maintainer-clean: clean
233
 
        -rm --force --recursive keydir confdir
 
279
        -rm --force --recursive keydir confdir statedir
234
280
 
235
281
check:  all
236
282
        ./mandos --check
 
283
        ./mandos-ctl --check
237
284
 
238
285
# Run the client with a local config and key
239
286
run-client: all keydir/seckey.txt keydir/pubkey.txt
242
289
        @echo "# ignored.  The messages are caused by not running as root, but   #"
243
290
        @echo "# you should NOT run \"make run-client\" as root unless you also    #"
244
291
        @echo "# unpacked and compiled Mandos as root, which is NOT recommended. #"
245
 
        @echo "# From plugin-runner: setuid: Operation not permitted             #"
 
292
        @echo "# From plugin-runner: setgid: Operation not permitted             #"
 
293
        @echo "#                     setuid: Operation not permitted             #"
246
294
        @echo "# From askpass-fifo:  mkfifo: Permission denied                   #"
247
 
        @echo "# From mandos-client: setuid: Operation not permitted             #"
248
 
        @echo "#                     seteuid: Operation not permitted            #"
249
 
        @echo "#                     klogctl: Operation not permitted            #"
 
295
        @echo "# From mandos-client:                                             #"
 
296
        @echo "#             Failed to raise privileges: Operation not permitted #"
 
297
        @echo "#             Warning: network hook \"*\" exited with status *      #"
250
298
        @echo "###################################################################"
 
299
# We set GNOME_KEYRING_CONTROL to block pam_gnome_keyring
251
300
        ./plugin-runner --plugin-dir=plugins.d \
 
301
                --plugin-helper-dir=plugin-helpers \
252
302
                --config-file=plugin-runner.conf \
253
303
                --options-for=mandos-client:--seckey=keydir/seckey.txt,--pubkey=keydir/pubkey.txt,--network-hook-dir=network-hooks.d \
 
304
                --env-for=mandos-client:GNOME_KEYRING_CONTROL= \
254
305
                $(CLIENTARGS)
255
306
 
256
307
# Used by run-client
259
310
        ./mandos-keygen --dir keydir --force
260
311
 
261
312
# Run the server with a local config
262
 
run-server: confdir/mandos.conf confdir/clients.conf
263
 
        @echo "#################################################################"
264
 
        @echo "# NOTE: Please IGNORE the error about \"Could not open file      #"
265
 
        @echo "# u'/var/run/mandos.pid'\" -  it is harmless and is caused by    #"
266
 
        @echo "# the server not running as root.  Do NOT run \"make run-server\" #"
267
 
        @echo "# server as root if you didn't also unpack and compile it thus. #"
268
 
        @echo "#################################################################"
269
 
        ./mandos --debug --no-dbus --configdir=confdir $(SERVERARGS)
 
313
run-server: confdir/mandos.conf confdir/clients.conf statedir
 
314
        ./mandos --debug --no-dbus --configdir=confdir \
 
315
                --statedir=statedir $(SERVERARGS)
270
316
 
271
317
# Used by run-server
272
318
confdir/mandos.conf: mandos.conf
276
322
        install --directory confdir
277
323
        install --mode=u=rw $< $@
278
324
# Add a client password
279
 
        ./mandos-keygen --dir keydir --password >> $@
 
325
        ./mandos-keygen --dir keydir --password --no-ssh >> $@
 
326
statedir:
 
327
        install --directory statedir
280
328
 
281
329
install: install-server install-client-nokey
282
330
 
287
335
 
288
336
install-server: doc
289
337
        install --directory $(CONFDIR)
 
338
        if install --directory --mode=u=rwx --owner=$(USER) \
 
339
                --group=$(GROUP) $(STATEDIR); then \
 
340
                :; \
 
341
        elif install --directory --mode=u=rwx $(STATEDIR); then \
 
342
                chown -- $(USER):$(GROUP) $(STATEDIR) || :; \
 
343
        fi
290
344
        install --mode=u=rwx,go=rx mandos $(PREFIX)/sbin/mandos
291
345
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
292
346
                mandos-ctl
300
354
                $(DESTDIR)/etc/dbus-1/system.d/mandos.conf
301
355
        install --mode=u=rwx,go=rx init.d-mandos \
302
356
                $(DESTDIR)/etc/init.d/mandos
 
357
        if [ "$(SYSTEMD)" != "$(DESTDIR)" -a -d "$(SYSTEMD)" ]; then \
 
358
                install --mode=u=rw,go=r mandos.service $(SYSTEMD); \
 
359
        fi
303
360
        install --mode=u=rw,go=r default-mandos \
304
361
                $(DESTDIR)/etc/default/mandos
305
362
        if [ -z $(DESTDIR) ]; then \
315
372
                > $(MANDIR)/man5/mandos.conf.5.gz
316
373
        gzip --best --to-stdout mandos-clients.conf.5 \
317
374
                > $(MANDIR)/man5/mandos-clients.conf.5.gz
 
375
        gzip --best --to-stdout intro.8mandos \
 
376
                > $(MANDIR)/man8/intro.8mandos.gz
318
377
 
319
378
install-client-nokey: all doc
320
 
        install --directory $(PREFIX)/lib/mandos $(CONFDIR)
 
379
        install --directory $(LIBDIR)/mandos $(CONFDIR)
321
380
        install --directory --mode=u=rwx $(KEYDIR) \
322
 
                $(PREFIX)/lib/mandos/plugins.d
323
 
        if [ "$(CONFDIR)" != "$(PREFIX)/lib/mandos" ]; then \
 
381
                $(LIBDIR)/mandos/plugins.d \
 
382
                $(LIBDIR)/mandos/plugin-helpers
 
383
        if [ "$(CONFDIR)" != "$(LIBDIR)/mandos" ]; then \
324
384
                install --mode=u=rwx \
325
385
                        --directory "$(CONFDIR)/plugins.d"; \
 
386
                install --directory "$(CONFDIR)/plugin-helpers"; \
326
387
        fi
327
388
        install --mode=u=rwx,go=rx --directory \
328
389
                "$(CONFDIR)/network-hooks.d"
329
390
        install --mode=u=rwx,go=rx \
330
 
                --target-directory=$(PREFIX)/lib/mandos plugin-runner
 
391
                --target-directory=$(LIBDIR)/mandos plugin-runner
331
392
        install --mode=u=rwx,go=rx --target-directory=$(PREFIX)/sbin \
332
393
                mandos-keygen
333
394
        install --mode=u=rwx,go=rx \
334
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
395
                --target-directory=$(LIBDIR)/mandos/plugins.d \
335
396
                plugins.d/password-prompt
336
397
        install --mode=u=rwxs,go=rx \
337
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
398
                --target-directory=$(LIBDIR)/mandos/plugins.d \
338
399
                plugins.d/mandos-client
339
400
        install --mode=u=rwxs,go=rx \
340
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
401
                --target-directory=$(LIBDIR)/mandos/plugins.d \
341
402
                plugins.d/usplash
342
403
        install --mode=u=rwxs,go=rx \
343
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
404
                --target-directory=$(LIBDIR)/mandos/plugins.d \
344
405
                plugins.d/splashy
345
406
        install --mode=u=rwxs,go=rx \
346
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
407
                --target-directory=$(LIBDIR)/mandos/plugins.d \
347
408
                plugins.d/askpass-fifo
348
409
        install --mode=u=rwxs,go=rx \
349
 
                --target-directory=$(PREFIX)/lib/mandos/plugins.d \
 
410
                --target-directory=$(LIBDIR)/mandos/plugins.d \
350
411
                plugins.d/plymouth
 
412
        install --mode=u=rwxs,go=rx \
 
413
                --target-directory=$(LIBDIR)/mandos/plugin-helpers \
 
414
                plugin-helpers/mandos-client-iprouteadddel
351
415
        install initramfs-tools-hook \
352
416
                $(INITRAMFSTOOLS)/hooks/mandos
353
417
        install --mode=u=rw,go=r initramfs-tools-hook-conf \
398
462
        ! grep --regexp='^ *[^ #].*keyscript=[^,=]*/mandos/' \
399
463
                $(DESTDIR)/etc/crypttab
400
464
        -rm --force $(PREFIX)/sbin/mandos-keygen \
401
 
                $(PREFIX)/lib/mandos/plugin-runner \
402
 
                $(PREFIX)/lib/mandos/plugins.d/password-prompt \
403
 
                $(PREFIX)/lib/mandos/plugins.d/mandos-client \
404
 
                $(PREFIX)/lib/mandos/plugins.d/usplash \
405
 
                $(PREFIX)/lib/mandos/plugins.d/splashy \
406
 
                $(PREFIX)/lib/mandos/plugins.d/askpass-fifo \
407
 
                $(PREFIX)/lib/mandos/plugins.d/plymouth \
 
465
                $(LIBDIR)/mandos/plugin-runner \
 
466
                $(LIBDIR)/mandos/plugins.d/password-prompt \
 
467
                $(LIBDIR)/mandos/plugins.d/mandos-client \
 
468
                $(LIBDIR)/mandos/plugins.d/usplash \
 
469
                $(LIBDIR)/mandos/plugins.d/splashy \
 
470
                $(LIBDIR)/mandos/plugins.d/askpass-fifo \
 
471
                $(LIBDIR)/mandos/plugins.d/plymouth \
408
472
                $(INITRAMFSTOOLS)/hooks/mandos \
409
473
                $(INITRAMFSTOOLS)/conf-hooks.d/mandos \
410
474
                $(INITRAMFSTOOLS)/scripts/init-premount/mandos \
416
480
                $(MANDIR)/man8/splashy.8mandos.gz \
417
481
                $(MANDIR)/man8/askpass-fifo.8mandos.gz \
418
482
                $(MANDIR)/man8/plymouth.8mandos.gz \
419
 
        -rmdir $(PREFIX)/lib/mandos/plugins.d $(CONFDIR)/plugins.d \
420
 
                 $(PREFIX)/lib/mandos $(CONFDIR) $(KEYDIR)
 
483
        -rmdir $(LIBDIR)/mandos/plugins.d $(CONFDIR)/plugins.d \
 
484
                 $(LIBDIR)/mandos $(CONFDIR) $(KEYDIR)
421
485
        update-initramfs -k all -u
422
486
 
423
487
purge: purge-server purge-client
427
491
                $(DESTDIR)/etc/dbus-1/system.d/mandos.conf
428
492
                $(DESTDIR)/etc/default/mandos \
429
493
                $(DESTDIR)/etc/init.d/mandos \
 
494
                $(SYSTEMD)/mandos.service \
 
495
                $(DESTDIR)/run/mandos.pid \
430
496
                $(DESTDIR)/var/run/mandos.pid
431
497
        -rmdir $(CONFDIR)
432
498