ENUM NETLINK_ATTRIBUTE_TYPE(9)

🌸 NAME

okay so this is enum netlink_attribute_type from the Kernel API Manual — literally the type of an attribute. that's the whole vibe bestie 💅

✨ SYNOPSIS

enum netlink_attribute_type {
    NL_ATTR_TYPE_INVALID ,
    NL_ATTR_TYPE_FLAG ,
    NL_ATTR_TYPE_U8 ,
    NL_ATTR_TYPE_U16 ,
    NL_ATTR_TYPE_U32 ,
    NL_ATTR_TYPE_U64 ,
    NL_ATTR_TYPE_S8 ,
    NL_ATTR_TYPE_S16 ,
    NL_ATTR_TYPE_S32 ,
    NL_ATTR_TYPE_S64 ,
    NL_ATTR_TYPE_BINARY ,
    NL_ATTR_TYPE_STRING ,
    NL_ATTR_TYPE_NUL_STRING ,
    NL_ATTR_TYPE_NESTED ,
    NL_ATTR_TYPE_NESTED_ARRAY ,
    NL_ATTR_TYPE_BITFIELD32 ,
    NL_ATTR_TYPE_SINT ,
    NL_ATTR_TYPE_UINT

};

💖 Constants

• NL_ATTR_TYPE_INVALID — unused. literally the “no thoughts, head empty” option 🙈
• NL_ATTR_TYPE_FLAG — flag attribute, as in present/not present. she's either there or she's not 💅
• NL_ATTR_TYPE_U8 — 8-bit unsigned attribute ✨
• NL_ATTR_TYPE_U16 — 16-bit unsigned attribute ✨
• NL_ATTR_TYPE_U32 — 32-bit unsigned attribute ✨
• NL_ATTR_TYPE_U64 — 64-bit unsigned attribute ✨
• NL_ATTR_TYPE_S8 — 8-bit signed attribute 🎀
• NL_ATTR_TYPE_S16 — 16-bit signed attribute 🎀
• NL_ATTR_TYPE_S32 — 32-bit signed attribute 🎀
• NL_ATTR_TYPE_S64 — 64-bit signed attribute 🎀
• NL_ATTR_TYPE_BINARY — binary data; min/max length may be specified 🧚
• NL_ATTR_TYPE_STRING — string; min/max length may be specified 🌸
• NL_ATTR_TYPE_NUL_STRING — NUL-terminated string; min/max length may be specified 🦋
• NL_ATTR_TYPE_NESTED — nested, i.e. the content of this attribute consists of sub-attributes. The nested policy and maxtype inside may be specified. it's giving attribute-ception 👑
• NL_ATTR_TYPE_NESTED_ARRAY — nested array, i.e. the content of this attribute contains sub-attributes whose type is irrelevant (just used to separate the array entries) and each such array entry has attributes again; the policy for those inner ones and the corresponding maxtype may be specified. lowkey iconic but you gotta read it twice 😭
• NL_ATTR_TYPE_BITFIELD32 — struct nla_bitfield32 attribute ⭐
• NL_ATTR_TYPE_SINT — 32-bit or 64-bit signed attribute, aligned to 4B 🔥
• NL_ATTR_TYPE_UINT — 32-bit or 64-bit unsigned attribute, aligned to 4B 🔥

🦋 SEE ALSO

Kernel file ./include/uapi/linux/netlink.h and these besties: struct nlmsghdr(9), enum nlmsgerr_attrs(9), enum netlink_policy_type_attr(9) 🫶

mwah 💋 this page is from ./include/uapi/linux, dated October 2026, and it's the enum netlink_attribute_type(9) manual page. bye bestie, go slay some netlink attrs 🌈✨