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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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c4b2f10483
The kernel emits NEW_WIPHY events whenever a new wiphy is registered. Unfortunately these events are emitted under the 'legacy' semantics and have a hard size limit of 4096 bytes. Unfortunately, it is possible for a NEW_WIPHY message to exceed this limit (ath10k cards seem to be affected in particular), which results in the kernel never sending these messages out. This can lead to NEW_INTERFACE events being emitted with a wiphy_id that had no corresponding NEW_WIPHY event emitted. Such a sequence can confuse iwd's hardware detection logic, particularly during hot-plug or system boot. Fix this by re-dumping the wiphy if such a condition is detected. This has some interaction with blacklisted wiphys, so the wiphy objects are now always tracked and marked as blacklisted. Before, the blacklisted wiphys were simply not added to the iwd list of tracked wiphys.
90 lines
3.5 KiB
C
90 lines
3.5 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2013-2019 Intel Corporation. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <stdint.h>
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#include <stdbool.h>
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struct wiphy;
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struct scan_bss;
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struct scan_freq_set;
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enum wiphy_state_watch_event {
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WIPHY_STATE_WATCH_EVENT_POWERED,
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WIPHY_STATE_WATCH_EVENT_RFKILLED,
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};
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typedef void (*wiphy_state_watch_func_t)(struct wiphy *wiphy,
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enum wiphy_state_watch_event event,
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void *user_data);
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typedef void (*wiphy_destroy_func_t)(void *user_data);
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enum ie_rsn_cipher_suite wiphy_select_cipher(struct wiphy *wiphy,
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uint16_t mask);
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enum ie_rsn_akm_suite wiphy_select_akm(struct wiphy *wiphy,
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struct scan_bss *bss,
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bool fils_capable_hint);
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struct wiphy *wiphy_find(int wiphy_id);
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bool wiphy_is_blacklisted(const struct wiphy *wiphy);
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struct wiphy *wiphy_create(uint32_t wiphy_id, const char *name);
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void wiphy_update_name(struct wiphy *wiphy, const char *name);
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void wiphy_create_complete(struct wiphy *wiphy);
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bool wiphy_destroy(struct wiphy *wiphy);
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void wiphy_update_from_genl(struct wiphy *wiphy, struct l_genl_msg *msg);
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bool wiphy_constrain_freq_set(const struct wiphy *wiphy,
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struct scan_freq_set *set);
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uint32_t wiphy_get_id(struct wiphy *wiphy);
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const char *wiphy_get_path(struct wiphy *wiphy);
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uint32_t wiphy_get_supported_bands(struct wiphy *wiphy);
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const struct scan_freq_set *wiphy_get_supported_freqs(
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const struct wiphy *wiphy);
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bool wiphy_can_connect(struct wiphy *wiphy, struct scan_bss *bss);
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bool wiphy_can_randomize_mac_addr(struct wiphy *wiphy);
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bool wiphy_rrm_capable(struct wiphy *wiphy);
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bool wiphy_has_feature(struct wiphy *wiphy, uint32_t feature);
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bool wiphy_has_ext_feature(struct wiphy *wiphy, uint32_t feature);
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uint8_t wiphy_get_max_num_ssids_per_scan(struct wiphy *wiphy);
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uint16_t wiphy_get_max_scan_ie_len(struct wiphy *wiphy);
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uint32_t wiphy_get_max_roc_duration(struct wiphy *wiphy);
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bool wiphy_supports_iftype(struct wiphy *wiphy, uint32_t iftype);
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const uint8_t *wiphy_get_supported_rates(struct wiphy *wiphy, unsigned int band,
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unsigned int *out_num);
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bool wiphy_supports_adhoc_rsn(struct wiphy *wiphy);
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bool wiphy_can_offchannel_tx(struct wiphy *wiphy);
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bool wiphy_supports_qos_set_map(struct wiphy *wiphy);
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const char *wiphy_get_driver(struct wiphy *wiphy);
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const char *wiphy_get_name(struct wiphy *wiphy);
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const uint8_t *wiphy_get_permanent_address(struct wiphy *wiphy);
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const uint8_t *wiphy_get_extended_capabilities(struct wiphy *wiphy,
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uint32_t iftype);
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const uint8_t *wiphy_get_rm_enabled_capabilities(struct wiphy *wiphy);
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void wiphy_generate_random_address(struct wiphy *wiphy, uint8_t addr[static 6]);
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uint32_t wiphy_state_watch_add(struct wiphy *wiphy,
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wiphy_state_watch_func_t func, void *user_data,
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wiphy_destroy_func_t destroy);
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bool wiphy_state_watch_remove(struct wiphy *wiphy, uint32_t id);
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