# `Linx.Netlink.Constants`
[🔗](https://github.com/oshlabs/linx/blob/v0.2.0/lib/linx/netlink/constants.ex#L1)

Family-agnostic netlink constants — values from the core netlink ABI
(`include/uapi/linux/netlink.h`) that every protocol family shares.

Each constant is a zero-arity macro that expands to a literal integer, so it
can be used anywhere a literal can: building messages, in guards, and in
binary pattern matches. `import Linx.Netlink.Constants` to use the bare
names.

Protocol-family constants (`RTM_*`, `IFLA_*`, …) do not belong here; they
live in their family's namespace, e.g. `Linx.Netlink.Rtnl`.

# `nlm_f_ack`
*macro* 

`NLM_F_ACK` — request an acknowledgement (`NLMSG_ERROR` with errno 0).

# `nlm_f_append`
*macro* 

`NLM_F_APPEND` — append to the end of the object list.

# `nlm_f_atomic`
*macro* 

`NLM_F_ATOMIC` — return an atomic snapshot of the table.

# `nlm_f_create`
*macro* 

`NLM_F_CREATE` — create the object if it does not exist.

# `nlm_f_dump`
*macro* 

`NLM_F_DUMP` — dump the table (`NLM_F_ROOT` ||| `NLM_F_MATCH`).

# `nlm_f_dump_intr`
*macro* 

`NLM_F_DUMP_INTR` — a dump was interrupted by a change and is inconsistent.

# `nlm_f_echo`
*macro* 

`NLM_F_ECHO` — echo this request back to the sender.

# `nlm_f_excl`
*macro* 

`NLM_F_EXCL` — fail if the object already exists.

# `nlm_f_match`
*macro* 

`NLM_F_MATCH` — return all entries matching the request criteria.

# `nlm_f_multi`
*macro* 

`NLM_F_MULTI` — one of a multipart series, terminated by `NLMSG_DONE`.

# `nlm_f_replace`
*macro* 

`NLM_F_REPLACE` — replace an existing matching object.

# `nlm_f_request`
*macro* 

`NLM_F_REQUEST` — the message is a request.

# `nlm_f_root`
*macro* 

`NLM_F_ROOT` — return the whole table rather than a single entry.

# `nlmsg_done`
*macro* 

`NLMSG_DONE` — terminates a multipart message series.

# `nlmsg_error`
*macro* 

`NLMSG_ERROR` — an error report, or (errno 0) an acknowledgement.

# `nlmsg_min_type`
*macro* 

`NLMSG_MIN_TYPE` — the first message type available to protocol families.

# `nlmsg_noop`
*macro* 

`NLMSG_NOOP` — no-op; the message should be skipped.

# `nlmsg_overrun`
*macro* 

`NLMSG_OVERRUN` — data was lost; the socket is out of sync.

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*Consult [api-reference.md](api-reference.md) for complete listing*