iotests: Enhance 223, 233 to cover 'qemu-nbd --list'

Any good new feature deserves some regression testing :)
Coverage includes:
- 223: what happens when there are 0 or more than 1 export,
proof that we can see multiple contexts including qemu:dirty-bitmap
- 233: proof that we can list over TLS, and that mix-and-match of
plain/TLS listings will behave sanely

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20190117193658.16413-22-eblake@redhat.com>

tests/qemu-iotests/223

@@ -127,6 +127,7 @@ _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start",
 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start",
   "arguments":{"addr":{"type":"unix",
     "data":{"path":"'"$TEST_DIR/nbd"1'"}}}}' "error" # Attempt second server
+$QEMU_NBD_PROG -L -k "$TEST_DIR/nbd"
 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add",
   "arguments":{"device":"n", "bitmap":"b"}}' "return"
 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add",
@@ -142,6 +143,7 @@ _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add",
 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add",
   "arguments":{"device":"n", "name":"n2", "writable":true,
   "bitmap":"b2"}}' "return"
+$QEMU_NBD_PROG -L -k "$TEST_DIR/nbd"
 
 echo
 echo "=== Contrast normal status to large granularity dirty-bitmap ==="

tests/qemu-iotests/223.out

@@ -30,12 +30,32 @@ wrote 2097152/2097152 bytes at offset 2097152
 {"error": {"class": "GenericError", "desc": "NBD server not running"}}
 {"return": {}}
 {"error": {"class": "GenericError", "desc": "NBD server already running"}}
+exports available: 0
 {"return": {}}
 {"error": {"class": "GenericError", "desc": "Cannot find device=nosuch nor node_name=nosuch"}}
 {"error": {"class": "GenericError", "desc": "NBD server already has export named 'n'"}}
 {"error": {"class": "GenericError", "desc": "Enabled bitmap 'b2' incompatible with readonly export"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'b3' is not found"}}
 {"return": {}}
+exports available: 2
+ export: 'n'
+  size:  4194304
+  flags: 0x4ef ( readonly flush fua trim zeroes df cache )
+  min block: 512
+  opt block: 4096
+  max block: 33554432
+  available meta contexts: 2
+   base:allocation
+   qemu:dirty-bitmap:b
+ export: 'n2'
+  size:  4194304
+  flags: 0x4ed ( flush fua trim zeroes df cache )
+  min block: 512
+  opt block: 4096
+  max block: 33554432
+  available meta contexts: 2
+   base:allocation
+   qemu:dirty-bitmap:b2
 
 === Contrast normal status to large granularity dirty-bitmap ===
 

tests/qemu-iotests/233

@@ -69,10 +69,12 @@ echo
 echo "== check TLS client to plain server fails =="
 nbd_server_start_tcp_socket -f $IMGFMT "$TEST_IMG" 2> "$TEST_DIR/server.log"
 
-$QEMU_IMG info --image-opts \
-    --object tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0 \
+obj=tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0
+$QEMU_IMG info --image-opts --object $obj \
     driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
     2>&1 | sed "s/$nbd_tcp_port/PORT/g"
+$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port --object $obj \
+    --tls-creds=tls0
 
 nbd_server_stop
 
@@ -85,20 +87,25 @@ nbd_server_start_tcp_socket \
     -f $IMGFMT "$TEST_IMG" 2>> "$TEST_DIR/server.log"
 
 $QEMU_IMG info nbd://localhost:$nbd_tcp_port 2>&1 | sed "s/$nbd_tcp_port/PORT/g"
+$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port
 
 echo
 echo "== check TLS works =="
-$QEMU_IMG info --image-opts \
-    --object tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0 \
+obj=tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0
+$QEMU_IMG info --image-opts --object $obj \
     driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
     2>&1 | sed "s/$nbd_tcp_port/PORT/g"
+$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port --object $obj \
+    --tls-creds=tls0
 
 echo
 echo "== check TLS with different CA fails =="
-$QEMU_IMG info --image-opts \
-    --object tls-creds-x509,dir=${tls_dir}/client2,endpoint=client,id=tls0 \
+obj=tls-creds-x509,dir=${tls_dir}/client2,endpoint=client,id=tls0
+$QEMU_IMG info --image-opts --object $obj \
     driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
     2>&1 | sed "s/$nbd_tcp_port/PORT/g"
+$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port --object $obj \
+    --tls-creds=tls0
 
 echo
 echo "== perform I/O over TLS =="

tests/qemu-iotests/233.out

@@ -15,19 +15,33 @@ wrote 1048576/1048576 bytes at offset 1048576
 == check TLS client to plain server fails ==
 qemu-img: Could not open 'driver=nbd,host=127.0.0.1,port=PORT,tls-creds=tls0': Denied by server for option 5 (starttls)
 server reported: TLS not configured
+qemu-nbd: Denied by server for option 5 (starttls)
+server reported: TLS not configured
 
 == check plain client to TLS server fails ==
 qemu-img: Could not open 'nbd://localhost:PORT': TLS negotiation required before option 8 (structured reply)
 server reported: Option 0x8 not permitted before TLS
+qemu-nbd: TLS negotiation required before option 8 (structured reply)
+server reported: Option 0x8 not permitted before TLS
 
 == check TLS works ==
 image: nbd://127.0.0.1:PORT
 file format: nbd
 virtual size: 64M (67108864 bytes)
 disk size: unavailable
+exports available: 1
+ export: ''
+  size:  67108864
+  flags: 0x4ed ( flush fua trim zeroes df cache )
+  min block: 512
+  opt block: 4096
+  max block: 33554432
+  available meta contexts: 1
+   base:allocation
 
 == check TLS with different CA fails ==
 qemu-img: Could not open 'driver=nbd,host=127.0.0.1,port=PORT,tls-creds=tls0': The certificate hasn't got a known issuer
+qemu-nbd: The certificate hasn't got a known issuer
 
 == perform I/O over TLS ==
 read 1048576/1048576 bytes at offset 1048576
@@ -39,4 +53,5 @@ read 1048576/1048576 bytes at offset 1048576
 
 == final server log ==
 qemu-nbd: option negotiation failed: Verify failed: No certificate was found.
+qemu-nbd: option negotiation failed: Verify failed: No certificate was found.
 *** done