nla_nest_start(9)

💖 NAME 💖

okay bestie, this is nla_nest_start(9) from the Kernel API Manual, and it's literally: Start a new level of nested attributes, with NLA_F_NESTED ✨💅

✨ SYNOPSIS ✨

struct nlattr * nla_nest_start (struct sk_buff *skb , int attrtype );

🫶 ARGUMENTS 🫶

• skb — socket buffer to add attributes to. that's the buffer u are adding into, bestie.
• attrtype — attribute type of container. the type tag for the container, iykyk.

💅 DESCRIPTION 💅

Unlike nla_nest_start_noflag, this one marks the nest attribute with the NLA_F_NESTED flag. that's the whole flex. It's the preferred function to use in new code — periodt, bestie. 👑

🎀 RETURN 🎀

the container attribute or NULL on error 💀. so if u get that error vibe from NULL, no cap.

🌈 SEE ALSO 🌈

Kernel file ./include/net/netlink.h — that's the source home base. Then the whole netlink bestie squad, all here, no cap:

• struct nla_policy(9)
• struct nl_info(9)
• enum netlink_validation(9)
• 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)
• 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)
• 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)
• 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)
• 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_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)
• 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)
• nla_memdup(9)
• nla_nest_start_noflag(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)

and that's the whole page, bestie 💖 this cutie's source is ./include/net, dated October 2026 — nla_nest_start(9) out, mwah! 💅🎀✨