ocserv vhost issue

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Hello,

I am trying to get a vhost config to work for ocserv, but get the error:

worker-vpn.c:1820: no networks are configured; rejecting client

Any help is appreciated.



I took a working certificate based auth configuration, and copied these lines from the main config into the vhost block:
auth
cert-user-oid
ca-cert
server-cert (SAN for both main an vhost)
server-key
ipv4-network (CIDR)

Then, replaced the main config ipv4-network with a different valid network that is present on an interface on the host, and switched the main config to auth="pam".

Connections to the main server still work, but when a client attempts to connect to the vhost:

worker-vpn.c:1820: no networks are configured; rejecting client

But, the ipv4-network block defined, in the config file, for the vhost is being used per the following log message that precedes the reject message above:

main: pinged 10.203.98.241 and is not in use

Looking at the source of worker-vpn, it looks like network.name being undefined is causing the error in the rejecting client message, above:

if (WSCONFIG(ws)->network.name[0] == 0) {
                oclog(ws, LOG_ERR,
                      "no networks are configured; rejecting client");

Per config.c, network.name appears to be an internal name for 'device', but it does not look like you are supposed to use the device option in a vhost:

        } else if (strcmp(name, "device") == 0) {
                if (!WARN_ON_VHOST(vhost->name, "device", network.name))
                        READ_STATIC_STRING(config->network.name);


Adding a different tun device prefix as device = "mdc" to ocserv.conf results in this warning, confirming that we can't add a device= line to a vhost config:

ocserv[19796]: warning: device is ignored on managed-devices-cuesta.vpn.slo.cuesta.edu virtual host

I tried both the version of ocserv packaged for Debian Buster (0.12.2), and for buster-backports (0.12.6).

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