llc_sap_mcast(9)

💖 llc_sap_mcast(9) — Kernel API Manual 💖

okay bestie, welcome to the Kernel API Manual page for llc_sap_mcast(9). it’s giving kernel-networking realness, and we’re gonna get through it together ✨

✨ NAME ✨

llc_sap_mcast — deliver multicast PDU's to all matching datagram sockets. 💅

💖 SYNOPSIS 💖

here’s the signature, exactly as it appears:

void llc_sap_mcast (struct llc_sap *sap , const struct llc_addr *laddr , struct sk_buff *skb );

🎀 ARGUMENTS 🎀

• sap — SAP.
• laddr — address of local LLC (MAC + SAP).
• skb — PDU to deliver.

🦋 DESCRIPTION 🦋

okay so picture this: llc_sap_mcast searches the socket list of the SAP and finds connections with the same sap. then it delivers a clone to each. that’s the whole vibe — clone delivery, one for each match, no cap. 💖

🌈 SEE ALSO 🌈

Kernel file ./net/llc/llc_sap.c — and the whole friend group:

• llc_alloc_frame(9)
• llc_sap_rtn_pdu(9)
• llc_find_sap_trans(9)
• llc_exec_sap_trans_actions(9)
• llc_sap_next_state(9)
• llc_sap_state_process(9)
• llc_build_and_send_test_pkt(9)
• llc_build_and_send_xid_pkt(9)
• llc_sap_rcv(9)
• llc_lookup_dgram(9)

xoxo, your kernel bestie 💅✨ — source/version: ./net/llc; date: October 2026; manual: llc_sap_mcast(9). 🫶