STRUCT LLC_SAP(9)

🌸 NAME

okay so welcome to the struct llc_sap(9) page from the Kernel API Manual, bestie 💖 and this one is literally here to define the SAP component, no cap ✨

struct llc_sap — Defines the SAP component 🫶

✨ SYNOPSIS

vibe check on the struct, and yes we are keeping every single field exactly as written 💅

       struct llc_sap {
           unsigned char    state;
           unsigned char    p_bit;
           unsigned char    f_bit;
           refcount_t refcnt;
           int (*rcv_func)(struct sk_buff *skb, struct net_device *dev, struct
       packet_type *pt, struct net_device *orig_dev);
           struct llc_addr  laddr;
           struct list_head node;
           spinlock_t sk_lock;
           int sk_count;
           struct hlist_nulls_head sk_laddr_hash[LLC_SK_LADDR_HASH_ENTRIES];
           struct hlist_head sk_dev_hash[LLC_SK_DEV_HASH_ENTRIES];
           struct rcu_head rcu;
        };

🎀 Members

the member notes are chilling right below in Description, keep scrolling bestie 👇

💅 Description

okay so here are the member deets this page gives us — same names, same wording, periodt:

• station — station this sap belongs to
• state — sap state
• p_bit — only lowest-order bit used
• f_bit — only lowest-order bit used
• laddr — SAP value in this 'lsap'
• node — entry in station sap_list
• sk_list — LLC sockets this one manages

🔥 SEE ALSO

Kernel file ./include/net/llc.h — go peek, iykyk 👀

signing off from the ./include/net source/version, dated October 2026 — mwah 💖🎀✨