ieee80211_is_beacon(9)

💖 ieee80211_is_beacon(9) 💖

okay so hi bestie, welcome to the Kernel API Manual ✨ — yes the actual kernel API manual, we're doing this, we're thriving. today's main character is ieee80211_is_beacon, and honestly? she's a little one-liner with a big job 🎀

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🌸 NAME 🌸

ieee80211_is_beacon — checks if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON, no cap 💅

✨ SYNOPSIS ✨

bool ieee80211_is_beacon (__le16 fc );

🦋 ARGUMENTS 🦋

• fc — the frame control bytes, in little-endian byteorder. that endianness detail is not a suggestion bestie, it's literally the whole vibe of the argument 🔥

👑 RETURN 👑

returns whether or not the frame is a regular, not S1G beacon ⭐ — so like, if it's an S1G beacon, that's a different girl, she's not invited to this function 💀

🌈 SEE ALSO 🌈

first up, the kernel file to go peek at: ./include/linux/ieee80211.h 📂

and now, the entire extended friend group, in the order the original said them, because we do not drop anyone from the group chat 🫶

• ieee80211_has_tods(9), ieee80211_has_fromds(9), ieee80211_has_a4(9), ieee80211_has_morefrags(9), ieee80211_has_retry(9), ieee80211_has_pm(9), ieee80211_has_moredata(9), ieee80211_has_protected(9), ieee80211_has_order(9), ieee80211_is_mgmt(9), ieee80211_is_ctl(9), ieee80211_is_data(9), ieee80211_is_ext(9), ieee80211_is_data_qos(9), ieee80211_is_data_present(9)
• ieee80211_is_assoc_req(9), ieee80211_is_assoc_resp(9), ieee80211_is_reassoc_req(9), ieee80211_is_reassoc_resp(9), ieee80211_is_assoc(9), ieee80211_is_probe_req(9), ieee80211_is_probe_resp(9), ieee80211_is_atim(9), ieee80211_is_disassoc(9), ieee80211_is_auth(9), ieee80211_is_deauth(9), ieee80211_is_action(9)
• ieee80211_is_back_req(9), ieee80211_is_back(9), ieee80211_is_pspoll(9), ieee80211_is_rts(9), ieee80211_is_cts(9), ieee80211_is_ack(9), ieee80211_is_cfend(9), ieee80211_is_cfendack(9), ieee80211_is_nullfunc(9), ieee80211_is_qos_nullfunc(9), ieee80211_is_trigger(9), ieee80211_is_any_nullfunc(9), ieee80211_is_first_frag(9), ieee80211_is_frag(9)
• struct ieee80211_quiet_ie(9), struct ieee80211_msrment_ie(9), struct ieee80211_channel_sw_ie(9), struct ieee80211_ext_chansw_ie(9), struct ieee80211_sec_chan_offs_ie(9), struct ieee80211_wide_bw_chansw_ie(9), struct ieee80211_tim_ie(9), struct ieee80211_tpc_report_ie(9), struct ieee80211_bss_load_elem(9), struct ieee80211_timeout_interval_ie(9), enum ieee80211_idle_options(9), struct ieee80211_bss_max_idle_period_ie(9), struct ieee80211_bssid_index(9), struct ieee80211_multiple_bssid_configuration(9)
• ieee80211_get_qos_ctl(9), ieee80211_get_tid(9), ieee80211_get_SA(9), ieee80211_get_DA(9), ieee80211_is_bufferable_mmpdu(9), _ieee80211_is_robust_mgmt_frame(9), ieee80211_is_robust_mgmt_frame(9), ieee80211_is_public_action(9), ieee80211_is_protected_dual_of_public_action(9), _ieee80211_is_group_privacy_action(9), ieee80211_is_group_privacy_action(9), ieee80211_tu_to_usec(9), ieee80211_get_tdls_action(9), ieee80211_action_contains_tpc(9), ieee80211_is_timing_measurement(9), ieee80211_is_ftm(9), for_each_element_completed(9), struct ieee80211_enh_crit_upd(9), ieee80211_check_tim(9)

like I said. whole friend group. every single one. mwah 😭💜

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ok genuine reminder before you go: fc is little-endian frame control bytes, and this returns true only for a regular beacon — S1G beacons do not count here. don't let the vibes make you sloppy, bestie 🙈

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and that's the page!! brought to you from ./include/linux, dated October 2026, ieee80211_is_beacon(9) — go check a beacon, slay, periodt 💅🦋🌸