2 files changed, 272 insertions, 1 deletions

diff --git a/regress/Makefile b/regress/Makefile
index ab2a6ae7b..4c64b576f 100644
--- a/regress/Makefile
+++ b/regress/Makefile
@@ -44,6 +44,7 @@ LTESTS= 	connect \
                 sftp-badcmds \
                 sftp-batch \
                 sftp-glob \
+                sftp-perm \
                 reconfigure \
                 dynamic-forward \
                 forwarding \
@@ -86,7 +87,8 @@ CLEANFILES=	t2.out t3.out t6.out1 t6.out2 t7.out t7.out.pub copy.1 copy.2 \
                 authorized_principals_${USER} expect actual ready \
                 sshd_proxy.* authorized_keys_${USER}.* modpipe revoked-* krl-* \
                 ssh.log failed-ssh.log sshd.log failed-sshd.log \
-                regress.log failed-regress.log ssh-log-wrapper.sh
+                regress.log failed-regress.log ssh-log-wrapper.sh \
+                sftp-server.sh sftp-server.log sftp.log
 
 SUDO_CLEAN+=    /var/run/testdata_${USER} /var/run/keycommand_${USER}
 
diff --git a/regress/sftp-perm.sh b/regress/sftp-perm.sh
new file mode 100644
index 000000000..3448740bc
--- /dev/null
+++ b/regress/sftp-perm.sh
@@ -0,0 +1,269 @@
+#       $OpenBSD: sftp-perm.sh,v 1.2 2013/10/17 22:00:18 djm Exp $
+#       Placed in the Public Domain.
+
+tid="sftp permissions"
+
+SERVER_LOG=${OBJ}/sftp-server.log
+CLIENT_LOG=${OBJ}/sftp.log
+TEST_SFTP_SERVER=${OBJ}/sftp-server.sh
+
+prepare_server() {
+        printf "#!/bin/sh\nexec $SFTPSERVER -el debug3 $* 2>$SERVER_LOG\n" \
+        > $TEST_SFTP_SERVER
+        chmod a+x $TEST_SFTP_SERVER
+}
+
+run_client() {
+        echo "$@" | ${SFTP} -D ${TEST_SFTP_SERVER} -vvvb - >$CLIENT_LOG 2>&1
+}
+
+prepare_files() {
+        _prep="$1"
+        rm -f ${COPY} ${COPY}.1
+        test -d ${COPY}.dd && { rmdir ${COPY}.dd || fatal "rmdir ${COPY}.dd"; }
+        test -z "$_prep" && return
+        sh -c "$_prep" || fail "preparation failed: \"$_prep\""
+}
+
+postcondition() {
+        _title="$1"
+        _check="$2"
+        test -z "$_check" && return
+        sh -c "$_check" || fail "postcondition check failed: $_title"
+}
+
+ro_test() {
+        _desc=$1
+        _cmd="$2"
+        _prep="$3"
+        _expect_success_post="$4"
+        _expect_fail_post="$5"
+        verbose "$tid: read-only $_desc"
+        # Plain (no options, mostly to test that _cmd is good)
+        prepare_files "$_prep"
+        prepare_server
+        run_client "$_cmd" || fail "plain $_desc failed"
+        postcondition "$_desc no-readonly" "$_expect_success_post"
+        # Read-only enabled
+        prepare_files "$_prep"
+        prepare_server -R
+        run_client "$_cmd" && fail "read-only $_desc succeeded"
+        postcondition "$_desc readonly" "$_expect_fail_post"
+}
+
+perm_test() {
+        _op=$1
+        _whitelist_ops=$2
+        _cmd="$3"
+        _prep="$4"
+        _expect_success_post="$5"
+        _expect_fail_post="$6"
+        verbose "$tid: explicit $_op"
+        # Plain (no options, mostly to test that _cmd is good)
+        prepare_files "$_prep"
+        prepare_server
+        run_client "$_cmd" || fail "plain $_op failed"
+        postcondition "$_op no white/blacklists" "$_expect_success_post"
+        # Whitelist
+        prepare_files "$_prep"
+        prepare_server -p $_op,$_whitelist_ops
+        run_client "$_cmd" || fail "whitelisted $_op failed"
+        postcondition "$_op whitelisted" "$_expect_success_post"
+        # Blacklist
+        prepare_files "$_prep"
+        prepare_server -P $_op
+        run_client "$_cmd" && fail "blacklisted $_op succeeded"
+        postcondition "$_op blacklisted" "$_expect_fail_post"
+        # Whitelist with op missing.
+        prepare_files "$_prep"
+        prepare_server -p $_whitelist_ops
+        run_client "$_cmd" && fail "no whitelist $_op succeeded"
+        postcondition "$_op not in whitelist" "$_expect_fail_post"
+}
+
+ro_test \
+        "upload" \
+        "put $DATA $COPY" \
+        "" \
+        "cmp $DATA $COPY" \
+        "test ! -f $COPY"
+
+ro_test \
+        "setstat" \
+        "chmod 0700 $COPY" \
+        "touch $COPY; chmod 0400 $COPY" \
+        "test -x $COPY" \
+        "test ! -x $COPY"
+
+ro_test \
+        "rm" \
+        "rm $COPY" \
+        "touch $COPY" \
+        "test ! -f $COPY" \
+        "test -f $COPY"
+
+ro_test \
+        "mkdir" \
+        "mkdir ${COPY}.dd" \
+        "" \
+        "test -d ${COPY}.dd" \
+        "test ! -d ${COPY}.dd"
+
+ro_test \
+        "rmdir" \
+        "rmdir ${COPY}.dd" \
+        "mkdir ${COPY}.dd" \
+        "test ! -d ${COPY}.dd" \
+        "test -d ${COPY}.dd"
+
+ro_test \
+        "posix-rename" \
+        "rename $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -f ${COPY}.1 -a ! -f $COPY" \
+        "test -f $COPY -a ! -f ${COPY}.1"
+
+ro_test \
+        "oldrename" \
+        "rename -l $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -f ${COPY}.1 -a ! -f $COPY" \
+        "test -f $COPY -a ! -f ${COPY}.1"
+
+ro_test \
+        "symlink" \
+        "ln -s $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -h ${COPY}.1" \
+        "test ! -h ${COPY}.1"
+
+ro_test \
+        "hardlink" \
+        "ln $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -f ${COPY}.1" \
+        "test ! -f ${COPY}.1"
+
+# Test explicit permissions
+
+perm_test \
+        "open" \
+        "realpath,stat,lstat,read,close" \
+        "get $DATA $COPY" \
+        "" \
+        "cmp $DATA $COPY" \
+        "! cmp $DATA $COPY 2>/dev/null"
+
+perm_test \
+        "read" \
+        "realpath,stat,lstat,open,close" \
+        "get $DATA $COPY" \
+        "" \
+        "cmp $DATA $COPY" \
+        "! cmp $DATA $COPY 2>/dev/null"
+
+perm_test \
+        "write" \
+        "realpath,stat,lstat,open,close" \
+        "put $DATA $COPY" \
+        "" \
+        "cmp $DATA $COPY" \
+        "! cmp $DATA $COPY 2>/dev/null"
+
+perm_test \
+        "lstat" \
+        "realpath,stat,open,read,close" \
+        "get $DATA $COPY" \
+        "" \
+        "cmp $DATA $COPY" \
+        "! cmp $DATA $COPY 2>/dev/null"
+
+perm_test \
+        "opendir" \
+        "realpath,readdir,stat,lstat" \
+        "ls -ln $OBJ"
+
+perm_test \
+        "readdir" \
+        "realpath,opendir,stat,lstat" \
+        "ls -ln $OBJ"
+
+perm_test \
+        "setstat" \
+        "realpath,stat,lstat" \
+        "chmod 0700 $COPY" \
+        "touch $COPY; chmod 0400 $COPY" \
+        "test -x $COPY" \
+        "test ! -x $COPY"
+
+perm_test \
+        "remove" \
+        "realpath,stat,lstat" \
+        "rm $COPY" \
+        "touch $COPY" \
+        "test ! -f $COPY" \
+        "test -f $COPY"
+
+perm_test \
+        "mkdir" \
+        "realpath,stat,lstat" \
+        "mkdir ${COPY}.dd" \
+        "" \
+        "test -d ${COPY}.dd" \
+        "test ! -d ${COPY}.dd"
+
+perm_test \
+        "rmdir" \
+        "realpath,stat,lstat" \
+        "rmdir ${COPY}.dd" \
+        "mkdir ${COPY}.dd" \
+        "test ! -d ${COPY}.dd" \
+        "test -d ${COPY}.dd"
+
+perm_test \
+        "posix-rename" \
+        "realpath,stat,lstat" \
+        "rename $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -f ${COPY}.1 -a ! -f $COPY" \
+        "test -f $COPY -a ! -f ${COPY}.1"
+
+perm_test \
+        "rename" \
+        "realpath,stat,lstat" \
+        "rename -l $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -f ${COPY}.1 -a ! -f $COPY" \
+        "test -f $COPY -a ! -f ${COPY}.1"
+
+perm_test \
+        "symlink" \
+        "realpath,stat,lstat" \
+        "ln -s $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -h ${COPY}.1" \
+        "test ! -h ${COPY}.1"
+
+perm_test \
+        "hardlink" \
+        "realpath,stat,lstat" \
+        "ln $COPY ${COPY}.1" \
+        "touch $COPY" \
+        "test -f ${COPY}.1" \
+        "test ! -f ${COPY}.1"
+
+perm_test \
+        "statvfs" \
+        "realpath,stat,lstat" \
+        "df /"
+
+# XXX need good tests for:
+# fstat
+# fsetstat
+# realpath
+# stat
+# readlink
+# fstatvfs
+
+rm -rf ${COPY} ${COPY}.1 ${COPY}.dd
+