nla_get_s8_default(9)
π
nla_get_s8_default(9) π
okay so bestie, you just opened the Kernel API Manual page for nla_get_s8_default(9) β yes that's the whole name, yes it's a mouthful, no we are not skipping it. It's giving "tiny helper, lowkey main character" energy and honestly? We're obsessed. π
β¨ NAME β¨
nla_get_s8_default β return payload of s8 attribute or default
Literally that's the whole gig. It grabs the payload, or it hands you your fallback. No drama, no cap. π«Ά
πΈ SYNOPSIS πΈ
s8 nla_get_s8_default (const struct nlattr *nla , s8 defvalue );
Look at her. Short, cute, returns an s8. Iconic behavior. π
π¦ ARGUMENTS π¦
nlaβ the s8 netlink attribute, and bestieβ¦ it may beNULL. Yes, genuinely. She's allowed to show up empty-handed, we do not judge. πdefvalueβ the default value to use ifnlaisNULL. This is the safety net, the emotional support number, the "if nobody shows up, at least you did" value. π
β RETURN β
the value of the attribute, or the default value if not present
So either you get the real payload or you get defvalue β no in-between, no mystery, no "undefined sadness." Periodt. π
lowkey the whole point of this function is that it can't fail you. If the attribute isn't there, defvalue steps in like a true ride-or-die. π«Ά
π SEE ALSO π
right so here's the thing β this function runs with a huge squad, and when I say huge I mean I am not retyping one single name, we are copying them exactly, character for character, because getting these wrong is not the move. π§
The kernel file in question is ./include/net/netlink.h, and it's also the home of struct nla_policy(9), struct nl_info(9) and enum netlink_validation(9) β the founding mothers, truly. π
And now, the full extended fam, exact spelling, no edits:
Kernel file ./include/net/netlink.h 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_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_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)
likeβ¦ that's a lot of cousins but every single one of them is on the list, we did not drop a single name, and if you're looking for the other _default girlies (nla_get_u8_default(9), nla_get_u16_default(9), nla_get_u32_default(9), nla_get_u64_default(9), nla_get_uint_default(9), nla_get_s16_default(9), nla_get_s32_default(9), nla_get_s64_default(9), nla_get_sint_default(9), nla_get_be16_default(9), nla_get_be32_default(9), nla_get_be64_default(9), nla_get_le16_default(9), nla_get_le32_default(9), nla_get_le64_default(9), nla_get_msecs_default(9), nla_get_in_addr_default(9)) β yeah, she's literally the s8 one of that whole clique. iykyk. π
okay that's the whole page bestie, go forth and read your signed 8-bit attribute responsibly π
and for the credits moment: this one lives under ./include/net, it's dated October 2026, and the page itself is nla_get_s8_default(9) β periodt. π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms