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8b3193ea72
Today node_ids are randomly assigned. This adds the risk of failure from random number generation and still allows for the risk of collisions. Switch to assigning strictly advancing node_ids on the server during the initial connection greeting message exchange. This simplifies the system and allows us to derive information from the relative values of node_ids in the system. To do this we refactor the greeting code from internal to the net layer to proper client and server request and response processing. This lets the server manage persistent node_id storage and allows the client to wait for a node_id during mount. Now that net_connect is sync in the client we don't need the notify_up callback anymore. The client can perform those duties when the connect returns. The net code still has to snoop on request and response processing to see when the greetings have been exchange and allow messages to flow. Signed-off-by: Zach Brown <zab@versity.com>