xref: /freebsd/crypto/openssh/regress/sftp-perm.sh (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c) 
1#	$OpenBSD: sftp-perm.sh,v 1.3 2021/03/31 21:59:26 djm Exp $
2#	Placed in the Public Domain.
3
4tid="sftp permissions"
5
6SERVER_LOG=${OBJ}/sftp-server.log
7CLIENT_LOG=${OBJ}/sftp.log
8TEST_SFTP_SERVER=${OBJ}/sftp-server.sh
9
10prepare_server() {
11	printf "#!/bin/sh\nexec $SFTPSERVER -el debug3 $* 2>$SERVER_LOG\n" \
12	> $TEST_SFTP_SERVER
13	chmod a+x $TEST_SFTP_SERVER
14}
15
16run_client() {
17	echo "$@" | ${SFTP} -D ${TEST_SFTP_SERVER} -vvvb - >$CLIENT_LOG 2>&1
18}
19
20prepare_files() {
21	_prep="$1"
22	rm -f ${COPY} ${COPY}.1
23	test -d ${COPY}.dd && { rmdir ${COPY}.dd || fatal "rmdir ${COPY}.dd"; }
24	test -z "$_prep" && return
25	sh -c "$_prep" || fail "preparation failed: \"$_prep\""
26}
27
28postcondition() {
29	_title="$1"
30	_check="$2"
31	test -z "$_check" && return
32	${TEST_SHELL} -c "$_check" || fail "postcondition check failed: $_title"
33}
34
35ro_test() {
36	_desc=$1
37	_cmd="$2"
38	_prep="$3"
39	_expect_success_post="$4"
40	_expect_fail_post="$5"
41	verbose "$tid: read-only $_desc"
42	# Plain (no options, mostly to test that _cmd is good)
43	prepare_files "$_prep"
44	prepare_server
45	run_client "$_cmd" || fail "plain $_desc failed"
46	postcondition "$_desc no-readonly" "$_expect_success_post"
47	# Read-only enabled
48	prepare_files "$_prep"
49	prepare_server -R
50	run_client "$_cmd" && fail "read-only $_desc succeeded"
51	postcondition "$_desc readonly" "$_expect_fail_post"
52}
53
54perm_test() {
55	_op=$1
56	_whitelist_ops=$2
57	_cmd="$3"
58	_prep="$4"
59	_expect_success_post="$5"
60	_expect_fail_post="$6"
61	verbose "$tid: explicit $_op"
62	# Plain (no options, mostly to test that _cmd is good)
63	prepare_files "$_prep"
64	prepare_server
65	run_client "$_cmd" || fail "plain $_op failed"
66	postcondition "$_op no white/blacklists" "$_expect_success_post"
67	# Whitelist
68	prepare_files "$_prep"
69	prepare_server -p $_op,$_whitelist_ops
70	run_client "$_cmd" || fail "whitelisted $_op failed"
71	postcondition "$_op whitelisted" "$_expect_success_post"
72	# Blacklist
73	prepare_files "$_prep"
74	prepare_server -P $_op
75	run_client "$_cmd" && fail "blacklisted $_op succeeded"
76	postcondition "$_op blacklisted" "$_expect_fail_post"
77	# Whitelist with op missing.
78	prepare_files "$_prep"
79	prepare_server -p $_whitelist_ops
80	run_client "$_cmd" && fail "no whitelist $_op succeeded"
81	postcondition "$_op not in whitelist" "$_expect_fail_post"
82}
83
84ro_test \
85	"upload" \
86	"put $DATA $COPY" \
87	"" \
88	"cmp $DATA $COPY" \
89	"test ! -f $COPY"
90
91ro_test \
92	"setstat" \
93	"chmod 0700 $COPY" \
94	"touch $COPY; chmod 0400 $COPY" \
95	"test -x $COPY" \
96	"test ! -x $COPY"
97
98ro_test \
99	"rm" \
100	"rm $COPY" \
101	"touch $COPY" \
102	"test ! -f $COPY" \
103	"test -f $COPY"
104
105ro_test \
106	"mkdir" \
107	"mkdir ${COPY}.dd" \
108	"" \
109	"test -d ${COPY}.dd" \
110	"test ! -d ${COPY}.dd"
111
112ro_test \
113	"rmdir" \
114	"rmdir ${COPY}.dd" \
115	"mkdir ${COPY}.dd" \
116	"test ! -d ${COPY}.dd" \
117	"test -d ${COPY}.dd"
118
119ro_test \
120	"posix-rename" \
121	"rename $COPY ${COPY}.1" \
122	"touch $COPY" \
123	"test -f ${COPY}.1 -a ! -f $COPY" \
124	"test -f $COPY -a ! -f ${COPY}.1"
125
126ro_test \
127	"oldrename" \
128	"rename -l $COPY ${COPY}.1" \
129	"touch $COPY" \
130	"test -f ${COPY}.1 -a ! -f $COPY" \
131	"test -f $COPY -a ! -f ${COPY}.1"
132
133ro_test \
134	"symlink" \
135	"ln -s $COPY ${COPY}.1" \
136	"touch $COPY" \
137	"test -h ${COPY}.1" \
138	"test ! -h ${COPY}.1"
139
140ro_test \
141	"hardlink" \
142	"ln $COPY ${COPY}.1" \
143	"touch $COPY" \
144	"test -f ${COPY}.1" \
145	"test ! -f ${COPY}.1"
146
147# Test explicit permissions
148
149perm_test \
150	"open" \
151	"realpath,stat,lstat,read,close" \
152	"get $DATA $COPY" \
153	"" \
154	"cmp $DATA $COPY" \
155	"! cmp $DATA $COPY 2>/dev/null"
156
157perm_test \
158	"read" \
159	"realpath,stat,lstat,open,close" \
160	"get $DATA $COPY" \
161	"" \
162	"cmp $DATA $COPY" \
163	"! cmp $DATA $COPY 2>/dev/null"
164
165perm_test \
166	"write" \
167	"realpath,stat,lstat,open,close" \
168	"put $DATA $COPY" \
169	"" \
170	"cmp $DATA $COPY" \
171	"! cmp $DATA $COPY 2>/dev/null"
172
173perm_test \
174	"lstat" \
175	"realpath,stat,open,read,close" \
176	"get $DATA $COPY" \
177	"" \
178	"cmp $DATA $COPY" \
179	"! cmp $DATA $COPY 2>/dev/null"
180
181perm_test \
182	"opendir" \
183	"realpath,readdir,stat,lstat" \
184	"ls -ln $OBJ"
185
186perm_test \
187	"readdir" \
188	"realpath,opendir,stat,lstat" \
189	"ls -ln $OBJ"
190
191perm_test \
192	"setstat" \
193	"realpath,stat,lstat" \
194	"chmod 0700 $COPY" \
195	"touch $COPY; chmod 0400 $COPY" \
196	"test -x $COPY" \
197	"test ! -x $COPY"
198
199perm_test \
200	"remove" \
201	"realpath,stat,lstat" \
202	"rm $COPY" \
203	"touch $COPY" \
204	"test ! -f $COPY" \
205	"test -f $COPY"
206
207perm_test \
208	"mkdir" \
209	"realpath,stat,lstat" \
210	"mkdir ${COPY}.dd" \
211	"" \
212	"test -d ${COPY}.dd" \
213	"test ! -d ${COPY}.dd"
214
215perm_test \
216	"rmdir" \
217	"realpath,stat,lstat" \
218	"rmdir ${COPY}.dd" \
219	"mkdir ${COPY}.dd" \
220	"test ! -d ${COPY}.dd" \
221	"test -d ${COPY}.dd"
222
223# Can't readily test this because the client falls back to traditional rename.
224# XXX maybe there is a behaviorial difference we can test for?
225#perm_test \
226#	"posix-rename" \
227#	"realpath,stat,lstat" \
228#	"rename $COPY ${COPY}.1" \
229#	"touch $COPY" \
230#	"test -f ${COPY}.1 -a ! -f $COPY" \
231#	"test -f $COPY -a ! -f ${COPY}.1"
232
233perm_test \
234	"rename" \
235	"realpath,stat,lstat" \
236	"rename -l $COPY ${COPY}.1" \
237	"touch $COPY" \
238	"test -f ${COPY}.1 -a ! -f $COPY" \
239	"test -f $COPY -a ! -f ${COPY}.1"
240
241perm_test \
242	"symlink" \
243	"realpath,stat,lstat" \
244	"ln -s $COPY ${COPY}.1" \
245	"touch $COPY" \
246	"test -h ${COPY}.1" \
247	"test ! -h ${COPY}.1"
248
249perm_test \
250	"hardlink" \
251	"realpath,stat,lstat" \
252	"ln $COPY ${COPY}.1" \
253	"touch $COPY" \
254	"test -f ${COPY}.1" \
255	"test ! -f ${COPY}.1"
256
257perm_test \
258	"statvfs" \
259	"realpath,stat,lstat" \
260	"df /"
261
262# XXX need good tests for:
263# fstat
264# fsetstat
265# realpath
266# stat
267# readlink
268# fstatvfs
269
270rm -rf ${COPY} ${COPY}.1 ${COPY}.dd
271
272