batadv_netlink_hardif_fill(9)

👑 batadv_netlink_hardif_fill — Kernel API Manual ✨

okay so bestie, welcome to the glow-up of batadv_netlink_hardif_fill, straight out of the Kernel API Manual. this is the little function that ✨fills✨ a message with hardif attributes — like, it's the one doing the packing, and honestly? iconic. 🎀

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🌸 NAME 🌸

batadv_netlink_hardif_fill — Fill message with hardif attributes 💅

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🦋 SYNOPSIS 🦋

int batadv_netlink_hardif_fill (struct sk_buff *msg , struct batadv_priv
*bat_priv , struct batadv_hard_iface *hard_iface , enum
batadv_nl_commands cmd , u32 portid , u32 seq , int flags , struct
netlink_callback *cb );

no cap, that signature is a whole meal. eight arguments. she's committed. 🔥

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💖 ARGUMENTS 💖

• msg — the Netlink message to dump into 🫶 like, this is the canvas, and we're painting on it.
• bat_priv — the bat priv with all the mesh interface information 🧚 all the lore lives here.
• hard_iface — hard interface which was modified ⭐ the main character of this particular call, fr fr.
• cmd — type of message to generate 💌 tells you what kind of message we're cooking up.
• portid — Port making netlink request 📬 the port that's asking.
• seq — sequence number for message 🔢 so everything stays in order, periodt.
• flags — Additional flags for message 🚩 the extra little vibe settings.
• cb — Control block containing additional options 🎀 the little bag of extras.

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⭐ RETURN ⭐

0 on success, or a negative error number in case of failure 😭 — so yeah, check it, bestie. zero means slay, negative means something went sideways.

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🌈 SEE ALSO 🌈

Kernel file ./net/batman-adv/netlink.c enum 👀

and the whole friend group, because she does not exist in a vacuum:

• batadv_netlink_multicast_groups(9)
• enum batadv_genl_ops_flags(9)
• batadv_netlink_get_ifindex(9)
• batadv_netlink_mesh_fill_ap_isolation(9)
• batadv_netlink_set_mesh_ap_isolation(9)
• batadv_netlink_mesh_fill(9)
• batadv_netlink_notify_mesh(9)
• batadv_netlink_get_mesh(9)
• batadv_netlink_set_mesh(9)
• batadv_netlink_tp_meter_put(9)
• batadv_netlink_tpmeter_notify(9)
• batadv_netlink_tp_meter_start(9)
• batadv_netlink_tp_meter_cancel(9)
• batadv_netlink_notify_hardif(9)
• batadv_netlink_cmd_get_hardif(9)
• batadv_netlink_set_hardif(9)
• batadv_netlink_dump_hardif(9)
• batadv_netlink_vlan_fill(9)
• batadv_netlink_notify_vlan(9)
• batadv_netlink_get_vlan(9)
• batadv_netlink_set_vlan(9)
• batadv_netlink_get_meshif_from_ifindex(9)
• batadv_netlink_get_meshif_from_info(9)
• batadv_netlink_get_meshif(9)
• batadv_netlink_get_hardif_from_ifindex(9)
• batadv_netlink_get_hardif_from_info(9)
• batadv_netlink_get_hardif(9)
• batadv_get_vlan_from_info(9)
• batadv_pre_doit(9)
• batadv_post_doit(9)
• batadv_netlink_register(9)
• batadv_netlink_unregister(9)

iykyk 💜

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mwah, that's the whole page 🫶 this came from ./net/batman-adv, dated October 2026, and the manual itself is batadv_netlink_hardif_fill(9) — go read the source bestie, it's giving main character energy 💅✨