hostapd/src/drivers/driver_nl80211.h
Purushottam Kushwaha 74818ca63f Process QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH after NL80211_CMD_ROAM
NL80211_CMD_ROAM indication is scheduled via a kernel work queue, while
QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH is a vendor event from the
driver. Thus, a race condition can exist wherein the vendor event is
received prior to the NL80211_CMD_ROAM indication.

The processing of this vendor event depends on the NL80211_CMD_ROAM
indication to update the roamed BSS/BSSID information and thus the out
of sequence processing of these events would result in not updating the
right BSS information.

This commit adds a workaround to hold the pending
QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH event for up to 100 ms in
case NL80211_CMD_ROAM is not received first.

Signed-off-by: Purushottam Kushwaha <pkushwah@codeaurora.org>
2020-12-21 22:57:42 +02:00

325 lines
9.9 KiB
C

/*
* Driver interaction with Linux nl80211/cfg80211 - definitions
* Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
* Copyright (c) 2003-2004, Instant802 Networks, Inc.
* Copyright (c) 2005-2006, Devicescape Software, Inc.
* Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
* Copyright (c) 2009-2010, Atheros Communications
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef DRIVER_NL80211_H
#define DRIVER_NL80211_H
#include "nl80211_copy.h"
#include "utils/list.h"
#include "driver.h"
#ifndef NL_CAPABILITY_VERSION_3_5_0
#define nla_nest_start(msg, attrtype) \
nla_nest_start(msg, NLA_F_NESTED | (attrtype))
#endif
struct nl80211_global {
void *ctx;
struct dl_list interfaces;
int if_add_ifindex;
u64 if_add_wdevid;
int if_add_wdevid_set;
struct netlink_data *netlink;
struct nl_cb *nl_cb;
struct nl_sock *nl;
int nl80211_id;
int ioctl_sock; /* socket for ioctl() use */
struct nl_sock *nl_event;
};
struct nl80211_wiphy_data {
struct dl_list list;
struct dl_list bsss;
struct dl_list drvs;
struct nl_sock *nl_beacons;
struct nl_cb *nl_cb;
int wiphy_idx;
};
struct i802_bss {
struct wpa_driver_nl80211_data *drv;
struct i802_bss *next;
int ifindex;
int br_ifindex;
u64 wdev_id;
char ifname[IFNAMSIZ + 1];
char brname[IFNAMSIZ];
unsigned int beacon_set:1;
unsigned int added_if_into_bridge:1;
unsigned int already_in_bridge:1;
unsigned int added_bridge:1;
unsigned int in_deinit:1;
unsigned int wdev_id_set:1;
unsigned int added_if:1;
unsigned int static_ap:1;
unsigned int use_nl_connect:1;
u8 addr[ETH_ALEN];
int freq;
int bandwidth;
int if_dynamic;
void *ctx;
struct nl_sock *nl_preq, *nl_mgmt, *nl_connect;
struct nl_cb *nl_cb;
struct nl80211_wiphy_data *wiphy_data;
struct dl_list wiphy_list;
u8 rand_addr[ETH_ALEN];
};
struct drv_nl80211_if_info {
int ifindex;
/* the AP/AP_VLAN iface that is in this bridge */
int reason;
};
struct wpa_driver_nl80211_data {
struct nl80211_global *global;
struct dl_list list;
struct dl_list wiphy_list;
char phyname[32];
unsigned int wiphy_idx;
u8 perm_addr[ETH_ALEN];
void *ctx;
int ifindex;
int if_removed;
int if_disabled;
int ignore_if_down_event;
struct rfkill_data *rfkill;
struct wpa_driver_capa capa;
u8 *extended_capa, *extended_capa_mask;
unsigned int extended_capa_len;
struct drv_nl80211_ext_capa {
enum nl80211_iftype iftype;
u8 *ext_capa, *ext_capa_mask;
unsigned int ext_capa_len;
} iface_ext_capa[NL80211_IFTYPE_MAX];
unsigned int num_iface_ext_capa;
int has_capability;
int has_driver_key_mgmt;
int operstate;
int scan_complete_events;
enum scan_states {
NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
SCHED_SCAN_RESULTS
} scan_state;
u8 auth_bssid[ETH_ALEN];
u8 auth_attempt_bssid[ETH_ALEN];
u8 bssid[ETH_ALEN];
u8 prev_bssid[ETH_ALEN];
int associated;
u8 ssid[SSID_MAX_LEN];
size_t ssid_len;
enum nl80211_iftype nlmode;
enum nl80211_iftype ap_scan_as_station;
unsigned int assoc_freq;
int monitor_sock;
int monitor_ifidx;
int monitor_refcount;
unsigned int disabled_11b_rates:1;
unsigned int pending_remain_on_chan:1;
unsigned int in_interface_list:1;
unsigned int device_ap_sme:1;
unsigned int poll_command_supported:1;
unsigned int data_tx_status:1;
unsigned int scan_for_auth:1;
unsigned int retry_auth:1;
unsigned int use_monitor:1;
unsigned int ignore_next_local_disconnect:1;
unsigned int ignore_next_local_deauth:1;
unsigned int hostapd:1;
unsigned int start_mode_ap:1;
unsigned int start_iface_up:1;
unsigned int test_use_roc_tx:1;
unsigned int ignore_deauth_event:1;
unsigned int vendor_cmd_test_avail:1;
unsigned int roaming_vendor_cmd_avail:1;
unsigned int dfs_vendor_cmd_avail:1;
unsigned int have_low_prio_scan:1;
unsigned int force_connect_cmd:1;
unsigned int addr_changed:1;
unsigned int get_features_vendor_cmd_avail:1;
unsigned int set_rekey_offload:1;
unsigned int p2p_go_ctwindow_supported:1;
unsigned int setband_vendor_cmd_avail:1;
unsigned int get_pref_freq_list:1;
unsigned int set_prob_oper_freq:1;
unsigned int scan_vendor_cmd_avail:1;
unsigned int connect_reassoc:1;
unsigned int set_wifi_conf_vendor_cmd_avail:1;
unsigned int fetch_bss_trans_status:1;
unsigned int roam_vendor_cmd_avail:1;
unsigned int add_sta_node_vendor_cmd_avail:1;
unsigned int control_port_ap:1;
unsigned int multicast_registrations:1;
unsigned int no_rrm:1;
unsigned int get_sta_info_vendor_cmd_avail:1;
u64 vendor_scan_cookie;
u64 remain_on_chan_cookie;
u64 send_frame_cookie;
#define MAX_SEND_FRAME_COOKIES 20
u64 send_frame_cookies[MAX_SEND_FRAME_COOKIES];
unsigned int num_send_frame_cookies;
u64 eapol_tx_cookie;
unsigned int last_mgmt_freq;
struct wpa_driver_scan_filter *filter_ssids;
size_t num_filter_ssids;
struct i802_bss *first_bss;
int eapol_tx_sock;
int eapol_sock; /* socket for EAPOL frames */
struct nl_sock *rtnl_sk; /* nl_sock for NETLINK_ROUTE */
struct drv_nl80211_if_info default_if_indices[16];
struct drv_nl80211_if_info *if_indices;
int num_if_indices;
/* From failed authentication command */
int auth_freq;
u8 auth_bssid_[ETH_ALEN];
u8 auth_ssid[SSID_MAX_LEN];
size_t auth_ssid_len;
int auth_alg;
u8 *auth_ie;
size_t auth_ie_len;
u8 auth_wep_key[4][16];
size_t auth_wep_key_len[4];
int auth_wep_tx_keyidx;
int auth_local_state_change;
int auth_p2p;
/*
* Tells whether the last scan issued from wpa_supplicant was a normal
* scan (NL80211_CMD_TRIGGER_SCAN) or a vendor scan
* (NL80211_CMD_VENDOR). 0 if no pending scan request.
*/
int last_scan_cmd;
#ifdef CONFIG_DRIVER_NL80211_QCA
bool roam_indication_done;
u8 *pending_roam_data;
size_t pending_roam_data_len;
struct os_reltime pending_roam_ind_time;
#endif /* CONFIG_DRIVER_NL80211_QCA */
};
struct nl_msg;
void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
struct nl_msg *msg, int flags, uint8_t cmd);
struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd);
struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
uint8_t cmd);
struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd);
int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg,
int (*valid_handler)(struct nl_msg *, void *),
void *valid_data,
int (*ack_handler_custom)(struct nl_msg *, void *),
void *ack_data);
struct nl_sock * get_connect_handle(struct i802_bss *bss);
int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
const char *ifname, enum nl80211_iftype iftype,
const u8 *addr, int wds,
int (*handler)(struct nl_msg *, void *),
void *arg, int use_existing);
void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx);
unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv);
int nl80211_get_assoc_ssid(struct wpa_driver_nl80211_data *drv, u8 *ssid);
enum chan_width convert2width(int width);
void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv);
struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
int ifindex);
int is_ap_interface(enum nl80211_iftype nlmode);
int is_sta_interface(enum nl80211_iftype nlmode);
int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv);
int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
struct wpa_signal_info *sig);
int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
struct wpa_signal_info *sig_change);
int nl80211_get_wiphy_index(struct i802_bss *bss);
int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
enum nl80211_iftype nlmode);
int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
const u8 *addr, int cmd, u16 reason_code,
int local_state_change,
struct nl_sock *nl_connect);
int nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv);
void nl80211_remove_monitor_interface(struct wpa_driver_nl80211_data *drv);
int nl80211_send_monitor(struct wpa_driver_nl80211_data *drv,
const void *data, size_t len,
int encrypt, int noack);
int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv);
struct hostapd_hw_modes *
nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags,
u8 *dfs_domain);
int process_global_event(struct nl_msg *msg, void *arg);
int process_bss_event(struct nl_msg *msg, void *arg);
const char * nl80211_iftype_str(enum nl80211_iftype mode);
void nl80211_restore_ap_mode(struct i802_bss *bss);
#ifdef ANDROID
int android_nl_socket_set_nonblocking(struct nl_sock *handle);
int android_pno_start(struct i802_bss *bss,
struct wpa_driver_scan_params *params);
int android_pno_stop(struct i802_bss *bss);
extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
size_t buf_len);
#ifdef ANDROID_P2P
int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
const struct wpabuf *proberesp,
const struct wpabuf *assocresp);
#endif /* ANDROID_P2P */
#endif /* ANDROID */
/* driver_nl80211_scan.c */
void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx);
int wpa_driver_nl80211_scan(struct i802_bss *bss,
struct wpa_driver_scan_params *params);
int wpa_driver_nl80211_sched_scan(void *priv,
struct wpa_driver_scan_params *params);
int wpa_driver_nl80211_stop_sched_scan(void *priv);
struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv);
void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv);
int wpa_driver_nl80211_abort_scan(void *priv, u64 scan_cookie);
int wpa_driver_nl80211_vendor_scan(struct i802_bss *bss,
struct wpa_driver_scan_params *params);
int nl80211_set_default_scan_ies(void *priv, const u8 *ies, size_t ies_len);
#endif /* DRIVER_NL80211_H */