batadv_bla_is_backbone_gw(9)

✨ batadv_bla_is_backbone_gw(9) ✨

okay bestie, welcome to the Kernel API Manual page for batadv_bla_is_backbone_gw(9) — yes, that whole mouthful is the name, and yes, we are going to make it make sense. 💅

💖 NAME 💖

batadv_bla_is_backbone_gw — check if originator is a backbone gw for a VLAN

🌸 SYNOPSIS 🌸

bool batadv_bla_is_backbone_gw (struct sk_buff *skb , struct batadv_orig_node *orig_node , int hdr_size );

🎀 ARGUMENTS 🎀

• skb — the frame to be checked
• orig_node — the orig_node of the frame
• hdr_size — maximum length of the frame

🦋 DESCRIPTION 🦋

So the whole vibe here is a warning, and it is not a skip-it situation, fr fr:

⚠️ Warning: this function may reallocate the skb data buffer via pskb_may_pull/batadv_get_vid/... Any pointer into the skb data — like one you got from skb->data or eth_hdr — must be considered invalid afterwards and has to be reacquired. No cap, reacquire it. 😭

🔥 RETURN 🔥

It returns true if the orig_node is also a gateway on the mesh interface; otherwise it returns false. Periodt. 👑

🌈 SEE ALSO 🌈

Kernel file: ./net/batman-adv/bridge_loop_avoidance.c

The whole BLA bestie squad:

• batadv_choose_claim(9), batadv_choose_backbone_gw(9), batadv_compare_backbone_gw(9), batadv_compare_claim(9)
• batadv_backbone_gw_release(9), batadv_backbone_gw_put(9), batadv_claim_release(9), batadv_claim_put(9)
• batadv_claim_hash_find(9), batadv_backbone_hash_find(9), batadv_bla_del_backbone_claims(9), batadv_bla_send_claim(9)
• batadv_bla_loopdetect_report(9), batadv_bla_get_backbone_gw(9), batadv_bla_update_own_backbone_gw(9), batadv_bla_answer_request(9)
• batadv_bla_send_request(9), batadv_bla_send_announce(9), batadv_bla_add_claim(9), batadv_bla_claim_get_backbone_gw(9)
• batadv_bla_del_claim(9), batadv_handle_announce(9), batadv_handle_request(9), batadv_handle_unclaim(9)
• batadv_handle_claim(9), batadv_check_claim_group(9), batadv_bla_process_claim(9), batadv_bla_purge_backbone_gw(9)
• batadv_bla_purge_claims(9), batadv_bla_update_orig_address(9), batadv_bla_send_loopdetect(9), batadv_bla_status_update(9)
• batadv_bla_periodic_work(9), batadv_bla_init(9), batadv_bla_check_duplist(9), batadv_bla_check_ucast_duplist(9)
• batadv_bla_check_bcast_duplist(9), batadv_bla_is_backbone_gw_orig(9), batadv_bla_free(9), batadv_bla_loopdetect_check(9)
• batadv_bla_rx(9), batadv_bla_tx(9), batadv_bla_claim_dump_entry(9), batadv_bla_claim_dump_bucket(9)
• batadv_bla_claim_dump(9), batadv_bla_backbone_dump_entry(9), batadv_bla_backbone_dump_bucket(9), batadv_bla_backbone_dump(9)
• batadv_bla_check_claim(9)

xoxo, your Unix bestie 💖 — from ./net/batman-adv, October 2026, page batadv_bla_is_backbone_gw(9).