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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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52ee3b0843
Pass an additional parameter to the scan results notify functions to tell them whether the scan was successful. If it wasn't don't bother passing an empty bss_list queue, pass NULL as bss_list. This way the callbacks can tell whether the scan indicates there are no BSSes in range or simply was aborted and the old scan results should be kept.
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2015 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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enum scan_band {
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SCAN_BAND_2_4_GHZ = 0x1,
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SCAN_BAND_5_GHZ = 0x2,
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};
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enum scan_state {
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SCAN_STATE_NOT_RUNNING,
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SCAN_STATE_PASSIVE,
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SCAN_STATE_ACTIVE,
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};
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typedef void (*scan_func_t)(struct l_genl_msg *msg, void *user_data);
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typedef void (*scan_trigger_func_t)(int, void *);
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typedef bool (*scan_notify_func_t)(uint32_t wiphy, uint32_t ifindex, int err,
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struct l_queue *bss_list,
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void *userdata);
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typedef void (*scan_destroy_func_t)(void *userdata);
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typedef void (*scan_freq_set_func_t)(uint32_t freq, void *userdata);
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struct scan_freq_set;
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struct ie_rsn_info;
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enum ie_bss_capability;
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struct scan_bss {
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uint8_t addr[6];
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uint32_t frequency;
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int32_t signal_strength;
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uint16_t capability;
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uint8_t *rsne;
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uint8_t *wpa;
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uint8_t *wsc; /* Concatenated WSC IEs */
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ssize_t wsc_size; /* Size of Concatenated WSC IEs */
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uint8_t mde[3];
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uint8_t ssid[32];
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uint8_t ssid_len;
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struct l_uintset *supported_rates;
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uint8_t utilization;
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uint8_t cc[3];
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uint16_t rank;
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bool mde_present : 1;
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bool cc_present : 1;
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bool cap_rm_neighbor_report : 1;
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};
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struct scan_parameters {
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const uint8_t *extra_ie;
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size_t extra_ie_size;
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struct scan_freq_set *freqs;
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bool flush : 1;
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};
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uint32_t scan_passive(uint32_t ifindex, scan_trigger_func_t trigger,
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scan_notify_func_t notify, void *userdata,
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scan_destroy_func_t destroy);
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uint32_t scan_active(uint32_t ifindex, uint8_t *extra_ie, size_t extra_ie_size,
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scan_trigger_func_t trigger,
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scan_notify_func_t notify, void *userdata,
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scan_destroy_func_t destroy);
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uint32_t scan_active_full(uint32_t ifindex,
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const struct scan_parameters *params,
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scan_trigger_func_t trigger, scan_notify_func_t notify,
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void *userdata, scan_destroy_func_t destroy);
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bool scan_cancel(uint32_t ifindex, uint32_t id);
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void scan_periodic_start(uint32_t ifindex, scan_trigger_func_t trigger,
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scan_notify_func_t func, void *userdata);
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bool scan_periodic_stop(uint32_t ifindex);
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void scan_sched_start(struct l_genl_family *nl80211, uint32_t ifindex,
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uint32_t scan_interval, scan_func_t callback,
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void *user_data);
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enum security scan_get_security(enum ie_bss_capability bss_cap,
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const struct ie_rsn_info *info);
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void scan_bss_free(struct scan_bss *bss);
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int scan_bss_rank_compare(const void *a, const void *b, void *user);
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int scan_bss_get_rsn_info(struct scan_bss *bss, struct ie_rsn_info *info);
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uint8_t scan_freq_to_channel(uint32_t freq, enum scan_band *out_band);
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uint32_t scan_channel_to_freq(uint8_t channel, enum scan_band band);
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enum scan_band scan_oper_class_to_band(const uint8_t *country,
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uint8_t oper_class);
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struct scan_freq_set *scan_freq_set_new(void);
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void scan_freq_set_free(struct scan_freq_set *freqs);
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bool scan_freq_set_add(struct scan_freq_set *freqs, uint32_t freq);
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bool scan_freq_set_contains(struct scan_freq_set *freqs, uint32_t freq);
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uint32_t scan_freq_set_get_bands(struct scan_freq_set *freqs);
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void scan_freq_set_foreach(struct scan_freq_set *freqs,
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scan_freq_set_func_t func, void *user_data);
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bool scan_ifindex_add(uint32_t ifindex);
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bool scan_ifindex_remove(uint32_t ifindex);
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bool scan_init(struct l_genl_family *in);
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bool scan_exit();
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