I'm playing around with VixDiskLib_Clone and VixDiskLib_Read for creating a simple backup application with CBT. My program works if I connect as user root, but if I create a new service account (e.g. 'backup') each call to VixDiskLib_Open fails with the following output:
12-04-27 22:12:50 [10 ] DEBUG CnxConnectAuthd: Returning false because CnxAuthdProtoAuthenticate failed
12-04-27 22:12:50 [10 ] DEBUG Cnx_Connect: Returning false because CnxConnectAuthd failed
12-04-27 22:12:50 [10 ] DEBUG Cnx_Connect: Error message: Login (username/password) incorrect
12-04-27 22:12:50 [10 ] DEBUG [NFC ERROR] NfcNewAuthdConnectionEx: Failed to connect to peer. Error: Login (username/password) incorrect
12-04-27 22:12:50 [10 ] DEBUG NBD_ClientOpen: Couldn't connect to xxxxxx:902 Login (username/password) incorrect
This only applies for the VixDiskLib connection. Calls to the web service API succeed with my service account 'backup'.
This is how I try to connect:
VixDiskLibConnectParams params = {0};
params.serverName = "esxihost"
params.creds.uid.userName = "backup";
params.creds.uid.password = "somesecret";
params.credType = VIXDISKLIB_CRED_UID;
params.port = 902;
VixDiskLibConnection conn = {0};
VixError res = VixDiskLib_Connect(¶ms, &conn);
CHECK_AND_THROW(res);
This connect stuff succeeds every time (also with account 'backup'). But subsequent calls to VixDiskLib_Open fail with the upper error message. I created the 'backup' service account with the vSphere client and added Administrator permissions to this account for the ESXi host context.
Once more:
- the code works if I use the root credentials of the ESXi host
- I can connect to the web service APIs with my 'backup' service account, but not via VixDiskLib_Connect/VixDiskLib_Open
- another ESXi host with same version (4.1.0, 381591), the same program and the same 'backup' service account also works
Any hints what's wrong or how I could figure out why this fails? vmware_hostd.log did not reveal any more useful information...
. In the backup implementation I have taken a backup of Virtualdisks, configuration and stored Changed Block information for each of the disks I backup. I also store the CBT information for each incremental I take.