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net: raise an error if -net type is invalid

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When a -net type is used that was not compiled into the binary there
should be an error message.

Note the special case for -net none, which is a no-op.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1432743412-15943-4-git-send-email-stefanha@redhat.com
This commit is contained in:
Stefan Hajnoczi 2015-05-27 17:16:50 +01:00
parent 1322629b4f
commit d139e9a6cf
1 changed files with 11 additions and 0 deletions
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11
net/net.c
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@ -942,6 +942,17 @@ static int net_client_init1(const void *object, int is_netdev, Error **errp)
}
/* missing optional values have been initialized to "all bits zero" */
name = u.net->has_id ? u.net->id : u.net->name;
if (opts->kind == NET_CLIENT_OPTIONS_KIND_NONE) {
return 0; /* nothing to do */
}
if (!net_client_init_fun[opts->kind]) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
"a net backend type (maybe it is not compiled "
"into this binary)");
return -1;
}
}
if (net_client_init_fun[opts->kind]) {