STRUCT GENL_OPS(9)

💖 struct genl_ops(9) 💖

okay so welcome to the Kernel API Manual page for struct genl_ops — the generic netlink operations struct — and honestly it’s giving backstage-pass-to-netlink-callbacks energy. no cap, every member matters here. 🫶

🌸 NAME 🌸

struct genl_ops — generic netlink operations ✨

🎀 SYNOPSIS 🎀

       struct genl_ops {
           int (*doit)(struct sk_buff *skb, struct genl_info *info);
           int (*start)(struct netlink_callback *cb);
           int (*dumpit)(struct sk_buff *skb, struct netlink_callback *cb);
           int (*done)(struct netlink_callback *cb);
           const struct nla_policy *policy;
           unsigned int            maxattr;
           u8 cmd;
           u8 internal_flags;
           u8 flags;
           u8 validate;
        };

💅 Members 💅

here’s the whole cast, bestie — no skips, no “I’ll read it later” behavior. 💖

• doit — standard command callback 💫
• start — start callback for dumps 🌀
• dumpit — callback for dumpers 📤
• done — completion callback for dumps ✅
• policy — netlink policy (takes precedence over family policy) 👑
• maxattr — maximum number of attributes supported 🔢
• cmd — command identifier 🏷️
• internal_flags — flags used by the family 🚩
• flags — GENL_* flags (GENL_ADMIN_PERM or GENL_UNS_ADMIN_PERM) 🛡️
• validate — validation flags from enum genl_validate_flags 🧪

🦋 SEE ALSO 🦋

Kernel file: ./include/net/genetlink.h — go read it, bestie. then vibe with the whole crew:

• struct genl_multicast_group(9)
• struct genl_family(9)
• struct genl_info(9)
• struct genl_small_ops(9)
• struct genl_split_ops(9)
• struct genl_dumpit_info(9)
• genl_info_init_ntf(9)
• genlmsg_iput(9)
• genlmsg_nlhdr(9)
• genlmsg_parse_deprecated(9)
• genlmsg_parse(9)
• genl_dump_check_consistent(9)
• genlmsg_put_reply(9)
• genlmsg_end(9)
• genlmsg_cancel(9)
• genlmsg_multicast_netns_filtered(9)
• genlmsg_multicast_netns(9)
• genlmsg_multicast(9)
• genlmsg_multicast_allns(9)
• genlmsg_unicast(9)
• genlmsg_reply(9)
• genlmsg_data(9)
• genlmsg_len(9)
• genlmsg_msg_size(9)
• genlmsg_total_size(9)
• genlmsg_new(9)
• genl_set_err(9)

that’s the whole page, bestie 🫶 source: ./include/net · date: October 2026 · page: struct genl_ops(9) in the Kernel API Manual — mwah 💋✨