nla_put_be32(9)

💅 nla_put_be32 — the "Kernel API Manual" glow-up ✨

okay so bestie, welcome to nla_put_be32(9) from the Kernel API Manual fam 🫶 this one's short and sweet and honestly? iconic for what it does. let's get into it 💖

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✨ NAME ✨

nla_put_be32 — literally just: add a __be32 netlink attribute to a socket buffer 🎀 that's the whole vibe. no cap.

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🌸 SYNOPSIS 🌸

int nla_put_be32 (struct sk_buff *skb , int attrtype , __be32 value );

like. look at her. three args, one int coming back at you, done. 👑

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🦋 ARGUMENTS 🦋

• skb — the socket buffer you're adding the attribute to 💌 that's the canvas, the main character, the thing you're decorating.
• attrtype — the attribute type 🌈 it's telling everyone what kind of attribute this is, iykyk.
• value — the numeric value 🔥 the actual number going in. big-endian, bestie.

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💜 SEE ALSO 💜

okay this part is a lot, and by a lot I mean the entire netlink extended family showed up to the group chat 😭 but every single one of them deserves a shoutout, so:

first up, straight from the kernel file ./include/net/netlink.h — struct nla_policy(9), struct nl_info(9), enum netlink_validation(9) 🎀 the founding mothers.

then the nlmsg msg-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) ✨

the parsing + validating crew: 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) 💅

the msg lifecycle besties: nlmsg_report(9), nlmsg_seq(9), nlmsg_for_each_attr(9), nlmsg_for_each_attr_type(9), 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) 🦋

the sending squad: nlmsg_multicast_filtered(9), nlmsg_multicast(9), nlmsg_unicast(9), nlmsg_for_each_msg(9), nl_dump_check_consistent(9) 🌸

the size + walking basics: 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) ⭐

now the whole put family, and yes her sisters are all here: nla_put_u8(9), nla_put_u16(9), nla_put_be16(9), nla_put_net16(9), nla_put_le16(9), nla_put_u32(9), nla_put_uint(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) 👑

and the whole get family, they're the readers, they're giving support role but make no mistake they ate: 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 batch, the nesting + iteration + 64-bit-alignment girlies: 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. that's the whole extended family, nobody left out 💀

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okay bye bestie, go put some big-endian attributes out there, you're gonna slay 🧚

this page lives in ./include/net and it's stamped October 2026 — mwah, xoxo 🍓