# Mozim -- DHCP Client Library
Still doing code sign, no real work this project can do yet.
Check again in 2022.
DONE:
* raw socket with BPF applied and accepting all mac address.
* DHCP discovery and request.
* Renew, rebind.
* DHCP IP apply via cli tool `mzc`.
* Route
* Timeout and retry
TODO:
* Verify XID.
* Handle vendor difference: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/848
* Support multiple DHCP servers with `DHCPNAK` reply.
* Support DHCPNAK
* Support `DHCPDECLINE`: Client to server indicating network address is
already in use.
* Support `DHCPINFORM`: Client to server, asking only for local configuration
parameters; client already has externally configured network address.
* Rate control -- Token bucket (RFC 2698)
* Initial sleep before discovery/solicit(need check RFC)
# Try out
```bash
# Below script will create veth eth1/eth1.ep.
# The `eth1.ep` is DHCP server interface running dnsmasq in `mozim` network
# namespace.
sudo ./utils/test_env_mozim &
cargo run --example mozim_dhcpv4_async
cargo run --example mozim_dhcpv6_sync
```