Re: [Qemu-devel] [PATCH v6 1/3] qemu-nbd: add support for authorization of TLS clients

[Eric Blake <eblake@redhat.com>]

On 2/27/19 10:43 AM, Eric Blake wrote:

>>  @example
>>  qemu-nbd \
>>    --object tls-creds-x509,id=tls0,endpoint=server,dir=/path/to/qemutls \
>> -  --tls-creds tls0 -t -x subset -p 10810 \
>> +  --object 'authz-simple,id=auth0,identity=CN=laptop.example.com,,\
>> +            O=Example Org,,L=London,,ST=London,,C=GB' \
> 
> A long line may be necessary here, unless the whitespace in the
> identity= parameter inserted by the line continuation is harmless.  Long
> lines in man pages are annoying, but even worse is an example that
> copies-and-pastes incorrectly.  I may just s/^ *O/O/.

I've just confirmed that whitespace in the identity= parameter is
harmless, via this change:

diff --git i/tests/qemu-iotests/233 w/tests/qemu-iotests/233
index 6adade45353..5e5fe1e8cdb 100755
--- i/tests/qemu-iotests/233
+++ w/tests/qemu-iotests/233
@@ -131,7 +131,8 @@ nbd_server_stop

 nbd_server_start_tcp_socket \
     --object
tls-creds-x509,dir=${tls_dir}/server1,endpoint=server,id=tls0,verify-peer=yes
\
-    --object "authz-simple,identity=CN=localhost,,O=Cthulu Dark Lord
Enterprises client1,,L=R'lyeh,,C=South Pacific,id=authz0" \
+    --object "authz-simple,id=authz0,identity=CN=localhost,, \
+      O=Cthulu Dark Lord Enterprises client1,,L=R'lyeh,,C=South Pacific" \
     --tls-authz authz0 \
     --tls-creds tls0 \
     -f $IMGFMT "$TEST_IMG" 2>> "$TEST_DIR/server.log"


So I'll go ahead and tweak the patch along those lines.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org