nla_put_be16(9)

💅 nla_put_be16(9) — from the Kernel API Manual

okay so bestie, buckle up 🎀 this is a page from the Kernel API Manual, straight out of ./include/net, and it's genuinely one of the tiniest little icons in the whole netlink family. no cap.

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✨ NAME ✨

nla_put_be16 — the function that adds a __be16 netlink attribute to a socket buffer 🦋 she's small, she's big-endian, she's doing her job.

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💖 SYNOPSIS 💖

int nla_put_be16 (struct sk_buff *skb , int attrtype , __be16 value );

like, she takes three things and gives you back an int. main character energy fr fr 💅

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🌸 ARGUMENTS 🌸

• skb — the socket buffer you're adding the attribute to 🫶 this is the canvas, the vibe, the whole mood.
• attrtype — the attribute type. yes, this is the label on the little box you're stuffing into the skb 🎀
• value — the numeric value. the actual payload, the moment, the icon herself ⭐ (and it's a __be16, so mind your endianness, iykyk)

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🦋 SEE ALSO 🦋

okay this is the part where the page lowkey dumps the entire netlink extended fam on you 😭 but honestly? iconic. here's everyone:

start with the kernel file ./include/net/netlink.h and its buddies struct nla_policy(9), struct nl_info(9), and enum netlink_validation(9) 💜

then the nlmsg_* girlies: nlmsg_msg_size(9), nlmsg_total_size(9), nlmsg_padlen(9), nlmsg_data(9), nlmsg_len(9), nlmsg_payload(9), nlmsg_attrdata(9), nlmsg_attrlen(9), nlmsg_ok(9), nlmsg_next(9) ✨

parsing + validating era: nla_parse(9), nla_parse_deprecated(9), nla_parse_deprecated_strict(9), __nlmsg_parse(9), nlmsg_parse(9), nlmsg_parse_deprecated(9), nlmsg_parse_deprecated_strict(9), nlmsg_find_attr(9), nla_validate_deprecated(9), nla_validate(9), nlmsg_validate_deprecated(9), nlmsg_report(9), nlmsg_seq(9), nlmsg_for_each_attr(9), nlmsg_for_each_attr_type(9) 🌈

building + sending: nlmsg_put(9), nlmsg_append(9), nlmsg_put_answer(9), nlmsg_new(9), nlmsg_new_large(9), nlmsg_end(9), nlmsg_get_pos(9), nlmsg_trim(9), nlmsg_cancel(9), nlmsg_free(9), nlmsg_consume(9), nlmsg_multicast_filtered(9), nlmsg_multicast(9), nlmsg_unicast(9), nlmsg_for_each_msg(9), nl_dump_check_consistent(9) 🔥

attribute plumbing: nla_attr_size(9), nla_total_size(9), nla_padlen(9), nla_type(9), nla_data(9), nla_len(9), nla_ok(9), nla_next(9), nla_find_nested(9), nla_parse_nested(9), nla_parse_nested_deprecated(9) 🧚

the whole nla_put_* putter squad (your girl nla_put_be16(9) runs with these): nla_put_u8(9), nla_put_u16(9), nla_put_net16(9), nla_put_le16(9), nla_put_u32(9), nla_put_uint(9), nla_put_be32(9), nla_put_net32(9), nla_put_le32(9), nla_put_u64_64bit(9), nla_put_be64(9), nla_put_net64(9), nla_put_le64(9), nla_put_s8(9), nla_put_s16(9), nla_put_s32(9), nla_put_s64(9), nla_put_sint(9), nla_put_string(9), nla_put_flag(9), nla_put_msecs(9), nla_put_in_addr(9), nla_put_in6_addr(9), nla_put_bitfield32(9) 💀 (yes that's all of them, no I didn't skip any, don't @ me)

the nla_get_* getter squad: nla_get_u32(9), nla_get_u32_default(9), nla_get_be32(9), nla_get_be32_default(9), nla_get_le32(9), nla_get_le32_default(9), nla_get_u16(9), nla_get_u16_default(9), nla_get_be16(9), nla_get_be16_default(9), nla_get_le16(9), nla_get_le16_default(9), nla_get_u8(9), nla_get_u8_default(9), nla_get_u64(9), nla_get_u64_default(9), nla_get_uint(9), nla_get_uint_default(9), nla_get_be64(9), nla_get_be64_default(9), nla_get_le64(9), nla_get_le64_default(9), nla_get_s32(9), nla_get_s32_default(9), nla_get_s16(9), nla_get_s16_default(9), nla_get_s8(9), nla_get_s8_default(9), nla_get_s64(9), nla_get_s64_default(9), nla_get_sint(9), nla_get_sint_default(9), nla_get_flag(9), nla_get_msecs(9), nla_get_msecs_default(9), nla_get_in_addr(9), nla_get_in_addr_default(9), nla_get_in6_addr(9), nla_get_bitfield32(9) 🙈

and the final boss row: nla_memdup(9), nla_nest_start_noflag(9), nla_nest_start(9), nla_nest_end(9), nla_nest_end_safe(9), nla_nest_cancel(9), nla_put_empty_nest(9), __nla_validate_nested(9), nla_need_padding_for_64bit(9), nla_align_64bit(9), nla_total_size_64bit(9), nla_for_each_attr(9), nla_for_each_attr_type(9), nla_for_each_nested(9), nla_for_each_nested_type(9), nla_is_last(9) 👑

periodt. go read them, they're all right there 💖

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ngl bestie, that's the whole page — she's short, she's sweet, she puts a big-endian 16-bit value in a socket buffer and she leaves. 10/10, no notes 🌸

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okay that's a wrap!! this cutie came out of ./include/net, dated October 2026, and she lives in the Kernel API Manual. mwah, go forth and netlink responsibly 🫶💅✨