ieee80211_ie_split_ric(9)
π ieee80211_ie_split_ric
okay so bestie, welcome to the Kernel API Manual, section 9 β this is the page for ieee80211_ie_split_ric(9) and honestly? she's a baddie with a very specific job. let's get into it π
β¨ NAME β¨
ieee80211_ie_split_ric β split an IE buffer according to ordering (with RIC) π«
like, she splits. according to ordering. and there's RIC involved. that's the whole vibe check.
π¦ SYNOPSIS π¦
size_t ieee80211_ie_split_ric (const u8 *ies , size_t ielen , const u8
*ids , int n_ids , const u8 *after_ric , int n_after_ric , size_t offset
);
seven arguments, one size_t coming back at you. she's thriving π
πΈ ARGUMENTS πΈ
iesβ the IE buffer. this is the main character, the thing we're slicing π«Άielenβ the length of the IE buffer. gotta know how long she is before you start cutting, yk?idsβ an array with element IDs that are allowed before the split. heads up tho: aWLAN_EID_EXTENSIONvalue means that the next EID in the list is a sub-element of the EXTENSION IE. not me needing you to remember that ordering, iykyk π₯n_idsβ the size of the element ID array πafter_ricβ array of IE types that come after the RIC element πn_after_ricβ size of theafter_ricarray βoffsetβ offset where to start splitting in the buffer π
π§ DESCRIPTION π§
so what does she actually do? this function splits an IE buffer by updating the offset variable to point to the location where the buffer should be split. lowkey elegant, honestly πΈ
β οΈ but listen β it assumes that the given IE buffer is well-formed. this has to be guaranteed by the caller! that's on you, bestie, not on her π
it also assumes that the IEs in the buffer are ordered correctly. if they're not? the result of using this function will not be ordered correctly either β i.e. it does no reordering. she is not doing that labor. periodt π
π RETURN π
the offset where the next part of the buffer starts β which may be ielen if the entire (remainder) of the buffer should be used β¨
like, she'll hand you back the whole rest of the thing if that's what's correct. generous icon π
Wait, before we get into the list β the mothership of all of this is the kernel file ./include/net/cfg80211.h, so if you want the real source of truth, that's where she lives π
And then, bestie, buckle up, because the cross-reference list is long long. Like, "study group at 2am" long π but every single one matters, so here we go:
Introduction(9)Device registration(9)enum ieee80211_channel_flags(9)struct ieee80211_channel(9)enum ieee80211_rate_flags(9)enum ieee80211_bss_type(9)enum ieee80211_privacy(9)struct ieee80211_rate(9)struct ieee80211_he_obss_pd(9)struct cfg80211_he_bss_color(9)struct ieee80211_sta_ht_cap(9)struct ieee80211_sta_vht_cap(9)struct ieee80211_sta_he_cap(9)struct ieee80211_eht_mcs_nss_supp(9)struct ieee80211_sta_eht_cap(9)struct ieee80211_sta_uhr_cap(9)struct ieee80211_sband_iftype_data(9)enum ieee80211_edmg_bw_config(9)struct ieee80211_edmg(9)struct ieee80211_sta_s1g_cap(9)struct ieee80211_supported_band(9)_ieee80211_set_sband_iftype_data(9)ieee80211_set_sband_iftype_data(9)for_each_sband_iftype_data(9)ieee80211_get_sband_iftype_data(9)ieee80211_get_he_iftype_cap(9)ieee80211_get_he_6ghz_capa(9)ieee80211_get_eht_iftype_cap(9)ieee80211_get_uhr_iftype_cap(9)wiphy_read_of_freq_limits(9)
Okay that was the band/capabilities girlies. Next up, the whole doing stuff wing of the library, aka:
Actions and configuration(9)struct vif_params(9)struct key_params(9)struct cfg80211_chan_def(9)struct cfg80211_tid_cfg(9)struct cfg80211_tid_config(9)struct cfg80211_fils_aad(9)struct cfg80211_set_hw_timestamp(9)cfg80211_get_chandef_type(9)cfg80211_chandef_create(9)cfg80211_chandef_identical(9)cfg80211_chandef_is_edmg(9)cfg80211_chandef_is_s1g(9)cfg80211_chandef_compatible(9)nl80211_chan_width_to_mhz(9)cfg80211_chandef_get_width(9)cfg80211_chandef_valid(9)cfg80211_chandef_usable(9)cfg80211_chandef_dfs_required(9)cfg80211_chandef_dfs_usable(9)cfg80211_chandef_dfs_cac_time(9)cfg80211_chandef_primary(9)cfg80211_chandef_npca_valid(9)cfg80211_chandef_add_npca(9)cfg80211_chandef_add_dbe(9)nl80211_send_chandef(9)ieee80211_chandef_max_power(9)cfg80211_chandef_s1g_pri_width(9)cfg80211_any_usable_channels(9)enum survey_info_flags(9)struct survey_info(9)struct cfg80211_crypto_settings(9)struct cfg80211_mbssid_config(9)struct cfg80211_mbssid_elems(9)struct cfg80211_rnr_elems(9)struct cfg80211_beacon_data(9)struct cfg80211_acl_data(9)struct cfg80211_fils_discovery(9)struct cfg80211_unsol_bcast_probe_resp(9)struct cfg80211_s1g_short_beacon(9)struct cfg80211_ap_settings(9)struct cfg80211_ap_update(9)struct cfg80211_csa_settings(9)struct cfg80211_color_change_settings(9)struct iface_combination_params(9)enum station_parameters_apply_mask(9)struct sta_txpwr(9)struct link_station_parameters(9)struct link_station_del_parameters(9)struct cfg80211_ttlm_params(9)struct station_parameters(9)struct station_del_parameters(9)enum cfg80211_station_type(9)cfg80211_check_station_change(9)enum rate_info_flags(9)enum rate_info_bw(9)struct rate_info(9)enum bss_param_flags(9)struct sta_bss_parameters(9)struct cfg80211_txq_stats(9)struct cfg80211_tid_stats(9)struct link_station_info(9)struct station_info(9)struct cfg80211_sar_sub_specs(9)struct cfg80211_sar_specs(9)struct cfg80211_sar_freq_ranges(9)struct cfg80211_sar_capa(9)cfg80211_get_station(9)enum monitor_flags(9)enum mpath_info_flags(9)struct mpath_info(9)enum wiphy_bss_param_flags(9)struct bss_parameters(9)struct mesh_config(9)struct mesh_setup(9)struct ocb_setup(9)struct ieee80211_txq_params(9)
Scannie szn π‘ the whole "finding networks and remembering them" cluster:
Scanning and BSS list handling(9)struct cfg80211_ssid(9)struct cfg80211_scan_info(9)struct cfg80211_scan_6ghz_params(9)struct cfg80211_scan_request(9)struct cfg80211_match_set(9)struct cfg80211_sched_scan_plan(9)struct cfg80211_bss_select_adjust(9)struct cfg80211_sched_scan_request(9)enum cfg80211_signal_type(9)struct cfg80211_inform_bss(9)struct cfg80211_bss_ies(9)struct cfg80211_bss(9)ieee80211_bss_get_elem(9)ieee80211_bss_get_ie(9)struct cfg80211_auth_request(9)struct cfg80211_assoc_link(9)struct cfg80211_ml_reconf_req(9)enum cfg80211_assoc_req_flags(9)struct cfg80211_assoc_request(9)struct cfg80211_deauth_request(9)struct cfg80211_disassoc_request(9)struct cfg80211_ibss_params(9)struct cfg80211_bss_selection(9)struct cfg80211_connect_params(9)enum cfg80211_connect_params_changed(9)enum wiphy_params_flags(9)struct cfg80211_pmksa(9)struct cfg80211_pkt_pattern(9)struct cfg80211_wowlan_tcp(9)struct cfg80211_wowlan(9)struct cfg80211_coalesce_rules(9)struct cfg80211_coalesce(9)struct cfg80211_wowlan_nd_match(9)struct cfg80211_wowlan_nd_info(9)struct cfg80211_wowlan_wakeup(9)struct cfg80211_gtk_rekey_data(9)struct cfg80211_update_ft_ies_params(9)struct cfg80211_mgmt_tx_params(9)struct cfg80211_dscp_exception(9)struct cfg80211_dscp_range(9)struct cfg80211_qos_map(9)
Now the spicy social stuff β NAN, PMSR, and literally every wiphy entry point you could ever need:
Neighbor Awareness Networking (NAN)(9)struct cfg80211_nan_band_config(9)struct cfg80211_nan_conf(9)struct cfg80211_nan_channel(9)struct cfg80211_nan_local_sched(9)struct cfg80211_nan_peer_map(9)struct cfg80211_nan_peer_sched(9)enum cfg80211_nan_conf_changes(9)struct cfg80211_nan_func_filter(9)struct cfg80211_nan_func(9)struct cfg80211_pmk_conf(9)struct cfg80211_external_auth_params(9)struct cfg80211_ftm_responder_stats(9)struct cfg80211_pmsr_ftm_result(9)struct cfg80211_pmsr_result(9)struct cfg80211_pmsr_ftm_request_peer(9)struct cfg80211_pmsr_request_peer(9)struct cfg80211_pmsr_request(9)struct cfg80211_update_owe_info(9)struct mgmt_frame_regs(9)struct cfg80211_ops(9)enum wiphy_flags(9)struct ieee80211_iface_limit(9)struct ieee80211_iface_combination(9)enum wiphy_wowlan_support_flags(9)struct wiphy_wowlan_support(9)struct wiphy_coalesce_support(9)enum wiphy_vendor_command_flags(9)enum wiphy_opmode_flag(9)struct sta_opmode_info(9)struct wiphy_vendor_command(9)struct wiphy_iftype_ext_capab(9)cfg80211_get_iftype_ext_capa(9)struct cfg80211_pmsr_capabilities(9)struct wiphy_iftype_akm_suites(9)struct wiphy_radio_cfg(9)struct wiphy_radio_freq_range(9)struct wiphy_radio(9)enum wiphy_nan_flags(9)struct wiphy_nan_capa(9)struct wiphy(9)wiphy_priv(9)priv_to_wiphy(9)set_wiphy_dev(9)wiphy_dev(9)wiphy_name(9)wiphy_new_nm(9)wiphy_new(9)wiphy_register(9)rcu_dereference_wiphy(9)wiphy_dereference(9)get_wiphy_regdom(9)wiphy_unregister(9)wiphy_free(9)wiphy_lock(9)wiphy_unlock(9)wiphy_work_queue(9)wiphy_work_cancel(9)wiphy_work_flush(9)wiphy_delayed_work_queue(9)wiphy_delayed_work_cancel(9)wiphy_delayed_work_flush(9)wiphy_delayed_work_pending(9)wiphy_hrtimer_work_queue(9)wiphy_hrtimer_work_cancel(9)wiphy_hrtimer_work_flush(9)wiphy_hrtimer_work_pending(9)enum ieee80211_ap_reg_power(9)struct wireless_dev(9)wdev_priv(9)wdev_chandef(9)
The little helpers that make everything else possible π§:
Utility functions(9)ieee80211_channel_equal(9)ieee80211_channel_to_khz(9)ieee80211_channel_to_freq_khz(9)ieee80211_channel_to_frequency(9)ieee80211_freq_khz_to_channel(9)ieee80211_frequency_to_channel(9)ieee80211_get_channel_khz(9)ieee80211_get_channel(9)cfg80211_channel_is_psc(9)ieee80211_radio_freq_range_valid(9)cfg80211_radio_chandef_valid(9)cfg80211_wdev_channel_allowed(9)ieee80211_get_response_rate(9)ieee80211_mandatory_rates(9)struct ieee80211_radiotap_iterator(9)ieee80211_get_hdrlen_from_skb(9)ieee80211_hdrlen(9)ieee80211_get_mesh_hdrlen(9)
Data path besties, aka where the actual packets live π:
Data path helpers(9)ieee80211_data_to_8023_exthdr(9)ieee80211_data_to_8023(9)ieee80211_is_valid_amsdu(9)ieee80211_amsdu_to_8023s(9)ieee80211_get_8023_tunnel_proto(9)ieee80211_strip_8023_mesh_hdr(9)cfg80211_classify8021d(9)cfg80211_find_elem_match(9)cfg80211_find_ie_match(9)cfg80211_find_elem(9)cfg80211_find_ie(9)cfg80211_find_ext_elem(9)cfg80211_find_ext_ie(9)cfg80211_find_vendor_elem(9)cfg80211_find_vendor_ie(9)enum cfg80211_rnr_iter_ret(9)cfg80211_iter_rnr(9)cfg80211_defragment_element(9)cfg80211_send_layer2_update(9)
Regulatory content β yes queen, the FCC of it all π:
Regulatory enforcement infrastructure(9)regulatory_hint(9)regulatory_set_wiphy_regd(9)regulatory_set_wiphy_regd_sync(9)wiphy_apply_custom_regulatory(9)freq_reg_info(9)reg_initiator_name(9)regulatory_pre_cac_allowed(9)Internal regulatory db functions(9)reg_query_regdb_wmm(9)cfg80211_scan_done(9)cfg80211_sched_scan_results(9)cfg80211_sched_scan_stopped(9)cfg80211_sched_scan_stopped_locked(9)cfg80211_inform_bss_frame_data(9)cfg80211_gen_new_bssid(9)cfg80211_is_element_inherited(9)cfg80211_merge_profile(9)enum cfg80211_bss_frame_type(9)cfg80211_get_ies_channel_number(9)cfg80211_ssid_eq(9)cfg80211_inform_bss_data(9)__cfg80211_get_bss(9)cfg80211_get_bss(9)cfg80211_ref_bss(9)cfg80211_put_bss(9)cfg80211_unlink_bss(9)cfg80211_bss_iter(9)cfg80211_rx_mlme_mgmt(9)cfg80211_auth_timeout(9)struct cfg80211_rx_assoc_resp_data(9)cfg80211_rx_assoc_resp(9)struct cfg80211_assoc_failure(9)cfg80211_assoc_failure(9)cfg80211_tx_mlme_mgmt(9)cfg80211_rx_unprot_mlme_mgmt(9)cfg80211_michael_mic_failure(9)cfg80211_ibss_joined(9)cfg80211_notify_new_peer_candidate(9)
RFkill integration(9)wiphy_rfkill_set_hw_state_reason(9)wiphy_rfkill_start_polling(9)wiphy_rfkill_stop_polling(9)
Vendor commands(9)cfg80211_vendor_cmd_alloc_reply_skb(9)cfg80211_vendor_cmd_reply(9)cfg80211_vendor_cmd_get_sender(9)cfg80211_vendor_event_alloc(9)cfg80211_vendor_event_alloc_ucast(9)cfg80211_vendor_event(9)
Test mode(9)cfg80211_testmode_alloc_reply_skb(9)cfg80211_testmode_reply(9)cfg80211_testmode_alloc_event_skb(9)cfg80211_testmode_event(9)struct cfg80211_fils_resp_params(9)struct cfg80211_connect_resp_params(9)cfg80211_connect_done(9)cfg80211_connect_bss(9)cfg80211_connect_result(9)cfg80211_connect_timeout(9)struct cfg80211_roam_info(9)cfg80211_roamed(9)cfg80211_port_authorized(9)cfg80211_disconnected(9)cfg80211_ready_on_channel(9)cfg80211_remain_on_channel_expired(9)cfg80211_tx_mgmt_expired(9)cfg80211_sinfo_alloc_tid_stats(9)cfg80211_link_sinfo_alloc_tid_stats(9)cfg80211_sinfo_release_content(9)cfg80211_new_sta(9)cfg80211_del_sta_sinfo(9)cfg80211_del_sta(9)cfg80211_conn_failed(9)struct cfg80211_rx_info(9)cfg80211_rx_mgmt_ext(9)cfg80211_rx_mgmt_khz(9)cfg80211_rx_mgmt(9)struct cfg80211_tx_status(9)cfg80211_mgmt_tx_status_ext(9)cfg80211_mgmt_tx_status(9)cfg80211_control_port_tx_status(9)cfg80211_rx_control_port(9)cfg80211_cqm_rssi_notify(9)cfg80211_cqm_pktloss_notify(9)cfg80211_cqm_txe_notify(9)cfg80211_cqm_beacon_loss_notify(9)__cfg80211_radar_event(9)cfg80211_sta_opmode_change_notify(9)cfg80211_cac_event(9)cfg80211_background_cac_abort(9)cfg80211_gtk_rekey_notify(9)cfg80211_pmksa_candidate_notify(9)cfg80211_rx_spurious_frame(9)cfg80211_rx_unexpected_4addr_frame(9)cfg80211_probe_status(9)cfg80211_report_obss_beacon_khz(9)cfg80211_report_obss_beacon(9)struct cfg80211_beaconing_check_config(9)
Yeah. That's the whole list. No cap, that's genuinely every single entry ππ«Ά and we're still not done with this page, so keep scrolling, bestie β
cfg80211_reg_check_beaconing(9)β beaconing regulatory check, bestie π¦cfg80211_reg_can_beacon(9)β can we beacon? asking for a friend β¨cfg80211_reg_can_beacon_relax(9)β the relaxed version of that question πcfg80211_ch_switch_notify(9)β channel switch, but make it a notification π£cfg80211_ch_switch_started_notify(9)β the "we just started" flavour of the same vibeieee80211_operating_class_to_band(9)β operating class β‘οΈ band πieee80211_operating_class_to_chandef(9)β operating class β‘οΈ chandef, no capieee80211_chandef_to_operating_class(9)β and the reverse, because of course πieee80211_chandef_to_khz(9)β chandef β‘οΈ kHz, iconic conversion behaviorcfg80211_tdls_oper_request(9)β TDLS operation request, periodt π«Άcfg80211_calculate_bitrate(9)β math time, we love a calculated girlie π₯cfg80211_unregister_wdev(9)β unregistering a wireless device β¨cfg80211_register_netdevice(9)β register the netdevice, slaycfg80211_unregister_netdevice(9)β and the un-register counterpart πstruct cfg80211_ft_event_params(9)β a struct, not a function, don't get it twisted πcfg80211_ft_event(9)β FT event time πΈcfg80211_get_p2p_attr(9)β grabbing a P2P attribute βieee80211_ie_split(9)β the IE splitter, sibling of the page you're literally on rn πieee80211_fragment_element(9)β fragmenting an element, lowkey iconiccfg80211_report_wowlan_wakeup(9)β WoWLAN wakeup reporting πcfg80211_crit_proto_stopped(9)β critical protocol has stopped πieee80211_get_num_supported_channels(9)β how many channels? we counting πcfg80211_check_combinations(9)β checking combos, not the fast-food kind πcfg80211_iter_combinations(9)β iterating those combos π¦cfg80211_get_radio_idx_by_chan(9)β radio index by channel, iykykcfg80211_stop_link(9)β stopping a link, bye bestie πcfg80211_stop_iface(9)β stopping an interface π«Άcfg80211_shutdown_all_interfaces(9)β all of them. every last one πwiphy_ext_feature_set(9)β set an extended wiphy feature β¨wiphy_ext_feature_isset(9)β is it set tho? π€cfg80211_free_nan_func(9)β freeing a NAN function, the NAN crew starts here πstruct cfg80211_nan_match_params(9)β another struct, we respect her πcfg80211_nan_match(9)β NAN match πcfg80211_nan_func_terminated(9)β the NAN function terminated πcfg80211_nan_sched_update_done(9)β NAN schedule update: done βcfg80211_external_auth_request(9)β external auth request, very main character π₯cfg80211_pmsr_report(9)β the PMSR duo, part one πcfg80211_pmsr_complete(9)β the PMSR duo, part two, we're complete π«Άcfg80211_iftype_allowed(9)β is this iftype allowed? vibe check π¦cfg80211_assoc_comeback(9)β assoc comeback, she returned πcfg80211_update_owe_info_event(9)β OWE info update event β¨cfg80211_bss_flush(9)β flushing the BSS πΈcfg80211_bss_color_notify(9)β BSS color notification π¨cfg80211_obss_color_collision_notify(9)β OBSS color collision, dramatic but valid πcfg80211_color_change_started_notify(9)β color change started βcfg80211_color_change_aborted_notify(9)β color change aborted, we don't talk about it πcfg80211_color_change_notify(9)β color change, plain and simple πcfg80211_6ghz_power_type(9)β 6 GHz power type, the future is now π₯cfg80211_links_removed(9)β links removed πstruct cfg80211_mlo_reconf_done_data(9)β yes bestie, a struct again πcfg80211_mlo_reconf_add_done(9)β MLO reconfig add: done βcfg80211_schedule_channels_check(9)β schedule that channels check π¦cfg80211_epcs_changed(9)β EPCS changed, noted πcfg80211_next_nan_dw_notif(9)β back to the NAN girlies πcfg80211_nan_cluster_joined(9)β NAN cluster joined, welcome to the group chat πcfg80211_nan_ulw_update(9)β NAN ULW update β¨cfg80211_nan_channel_evac(9)β NAN channel evac, everybody out πββοΈwiphy_locked_debugfs_read(9)β debugfs read, but locked πwiphy_locked_debugfs_write(9)β and the write, also locked πcfg80211_s1g_get_start_freq_khz(9)β S1G start frequency in kHz πcfg80211_s1g_get_end_freq_khz(9)β S1G end frequency in kHz, matching set β¨cfg80211_s1g_get_primary_sibling(9)β S1G primary sibling, she has a sibling π«Άcfg80211_incumbent_signal_notify(9)β incumbent signal notification, and that's a wrap π
Okay that's genuinely the whole SEE ALSO list, no skips, no shortcuts, we ate π
This page lives in ./include/net (that's the source tree path you're looking at, bestie) and it's dated October 2026 β yes, from the future, we stay ahead π
β¨ Go read the actual function now, mwah ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms