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authorJohannes Berg <johannes@sipsolutions.net>2008-09-08 11:44:25 -0400
committerJohn W. Linville <linville@tuxdriver.com>2008-09-11 15:53:36 -0400
commit0a51b27e956bd9580296c48191b78175ed8b5971 (patch)
treefd48f13e3f8eb75675c1c8d32c7214df2af47814 /net/mac80211/mlme.c
parentee96d6ef82cc29421569b7cb7f7c7ee90168ec50 (diff)
mac80211: start moving scan code from mlme
Here's a first patch to move some code from mlme.c to a new file called scan.c. The end result will hopefully be a more manageable mlme.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c559
1 files changed, 16 insertions, 543 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ba502ce132d9..2caea9759b7e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -46,10 +46,6 @@
46#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ) 46#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
47#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ) 47#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
48 48
49#define IEEE80211_PROBE_DELAY (HZ / 33)
50#define IEEE80211_CHANNEL_TIME (HZ / 33)
51#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
52#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
53#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ) 49#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
54#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ) 50#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
55#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ) 51#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
@@ -341,8 +337,8 @@ static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
341 ieee80211_sta_tx(sdata, skb, encrypt); 337 ieee80211_sta_tx(sdata, skb, encrypt);
342} 338}
343 339
344static void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, 340void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
345 u8 *ssid, size_t ssid_len) 341 u8 *ssid, size_t ssid_len)
346{ 342{
347 struct ieee80211_local *local = sdata->local; 343 struct ieee80211_local *local = sdata->local;
348 struct ieee80211_supported_band *sband; 344 struct ieee80211_supported_band *sband;
@@ -3466,543 +3462,6 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
3466} 3462}
3467 3463
3468 3464
3469static void ieee80211_send_nullfunc(struct ieee80211_local *local,
3470 struct ieee80211_sub_if_data *sdata,
3471 int powersave)
3472{
3473 struct sk_buff *skb;
3474 struct ieee80211_hdr *nullfunc;
3475 __le16 fc;
3476
3477 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
3478 if (!skb) {
3479 printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
3480 "frame\n", sdata->dev->name);
3481 return;
3482 }
3483 skb_reserve(skb, local->hw.extra_tx_headroom);
3484
3485 nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
3486 memset(nullfunc, 0, 24);
3487 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
3488 IEEE80211_FCTL_TODS);
3489 if (powersave)
3490 fc |= cpu_to_le16(IEEE80211_FCTL_PM);
3491 nullfunc->frame_control = fc;
3492 memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
3493 memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
3494 memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
3495
3496 ieee80211_sta_tx(sdata, skb, 0);
3497}
3498
3499
3500static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
3501{
3502 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
3503 ieee80211_vif_is_mesh(&sdata->vif))
3504 ieee80211_sta_timer((unsigned long)sdata);
3505}
3506
3507void ieee80211_scan_completed(struct ieee80211_hw *hw)
3508{
3509 struct ieee80211_local *local = hw_to_local(hw);
3510 struct ieee80211_sub_if_data *sdata;
3511 union iwreq_data wrqu;
3512
3513 local->last_scan_completed = jiffies;
3514 memset(&wrqu, 0, sizeof(wrqu));
3515 wireless_send_event(local->scan_sdata->dev, SIOCGIWSCAN, &wrqu, NULL);
3516
3517 if (local->sta_hw_scanning) {
3518 local->sta_hw_scanning = 0;
3519 if (ieee80211_hw_config(local))
3520 printk(KERN_DEBUG "%s: failed to restore operational "
3521 "channel after scan\n", wiphy_name(local->hw.wiphy));
3522 /* Restart STA timer for HW scan case */
3523 rcu_read_lock();
3524 list_for_each_entry_rcu(sdata, &local->interfaces, list)
3525 ieee80211_restart_sta_timer(sdata);
3526 rcu_read_unlock();
3527
3528 goto done;
3529 }
3530
3531 local->sta_sw_scanning = 0;
3532 if (ieee80211_hw_config(local))
3533 printk(KERN_DEBUG "%s: failed to restore operational "
3534 "channel after scan\n", wiphy_name(local->hw.wiphy));
3535
3536
3537 netif_tx_lock_bh(local->mdev);
3538 netif_addr_lock(local->mdev);
3539 local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
3540 local->ops->configure_filter(local_to_hw(local),
3541 FIF_BCN_PRBRESP_PROMISC,
3542 &local->filter_flags,
3543 local->mdev->mc_count,
3544 local->mdev->mc_list);
3545
3546 netif_addr_unlock(local->mdev);
3547 netif_tx_unlock_bh(local->mdev);
3548
3549 rcu_read_lock();
3550 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
3551 /* Tell AP we're back */
3552 if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
3553 if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
3554 ieee80211_send_nullfunc(local, sdata, 0);
3555 netif_tx_wake_all_queues(sdata->dev);
3556 }
3557 } else
3558 netif_tx_wake_all_queues(sdata->dev);
3559
3560 ieee80211_restart_sta_timer(sdata);
3561 }
3562 rcu_read_unlock();
3563
3564 done:
3565 sdata = local->scan_sdata;
3566 if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
3567 struct ieee80211_if_sta *ifsta = &sdata->u.sta;
3568 if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
3569 (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
3570 !ieee80211_sta_active_ibss(sdata)))
3571 ieee80211_sta_find_ibss(sdata, ifsta);
3572 }
3573}
3574EXPORT_SYMBOL(ieee80211_scan_completed);
3575
3576void ieee80211_sta_scan_work(struct work_struct *work)
3577{
3578 struct ieee80211_local *local =
3579 container_of(work, struct ieee80211_local, scan_work.work);
3580 struct ieee80211_sub_if_data *sdata = local->scan_sdata;
3581 struct ieee80211_supported_band *sband;
3582 struct ieee80211_channel *chan;
3583 int skip;
3584 unsigned long next_delay = 0;
3585
3586 if (!local->sta_sw_scanning)
3587 return;
3588
3589 switch (local->scan_state) {
3590 case SCAN_SET_CHANNEL:
3591 /*
3592 * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
3593 * after we successfully scanned the last channel of the last
3594 * band (and the last band is supported by the hw)
3595 */
3596 if (local->scan_band < IEEE80211_NUM_BANDS)
3597 sband = local->hw.wiphy->bands[local->scan_band];
3598 else
3599 sband = NULL;
3600
3601 /*
3602 * If we are at an unsupported band and have more bands
3603 * left to scan, advance to the next supported one.
3604 */
3605 while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
3606 local->scan_band++;
3607 sband = local->hw.wiphy->bands[local->scan_band];
3608 local->scan_channel_idx = 0;
3609 }
3610
3611 /* if no more bands/channels left, complete scan */
3612 if (!sband || local->scan_channel_idx >= sband->n_channels) {
3613 ieee80211_scan_completed(local_to_hw(local));
3614 return;
3615 }
3616 skip = 0;
3617 chan = &sband->channels[local->scan_channel_idx];
3618
3619 if (chan->flags & IEEE80211_CHAN_DISABLED ||
3620 (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
3621 chan->flags & IEEE80211_CHAN_NO_IBSS))
3622 skip = 1;
3623
3624 if (!skip) {
3625 local->scan_channel = chan;
3626 if (ieee80211_hw_config(local)) {
3627 printk(KERN_DEBUG "%s: failed to set freq to "
3628 "%d MHz for scan\n", wiphy_name(local->hw.wiphy),
3629 chan->center_freq);
3630 skip = 1;
3631 }
3632 }
3633
3634 /* advance state machine to next channel/band */
3635 local->scan_channel_idx++;
3636 if (local->scan_channel_idx >= sband->n_channels) {
3637 /*
3638 * scan_band may end up == IEEE80211_NUM_BANDS, but
3639 * we'll catch that case above and complete the scan
3640 * if that is the case.
3641 */
3642 local->scan_band++;
3643 local->scan_channel_idx = 0;
3644 }
3645
3646 if (skip)
3647 break;
3648
3649 next_delay = IEEE80211_PROBE_DELAY +
3650 usecs_to_jiffies(local->hw.channel_change_time);
3651 local->scan_state = SCAN_SEND_PROBE;
3652 break;
3653 case SCAN_SEND_PROBE:
3654 next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
3655 local->scan_state = SCAN_SET_CHANNEL;
3656
3657 if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
3658 break;
3659 ieee80211_send_probe_req(sdata, NULL, local->scan_ssid,
3660 local->scan_ssid_len);
3661 next_delay = IEEE80211_CHANNEL_TIME;
3662 break;
3663 }
3664
3665 if (local->sta_sw_scanning)
3666 queue_delayed_work(local->hw.workqueue, &local->scan_work,
3667 next_delay);
3668}
3669
3670
3671static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
3672 u8 *ssid, size_t ssid_len)
3673{
3674 struct ieee80211_local *local = scan_sdata->local;
3675 struct ieee80211_sub_if_data *sdata;
3676
3677 if (ssid_len > IEEE80211_MAX_SSID_LEN)
3678 return -EINVAL;
3679
3680 /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
3681 * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
3682 * BSSID: MACAddress
3683 * SSID
3684 * ScanType: ACTIVE, PASSIVE
3685 * ProbeDelay: delay (in microseconds) to be used prior to transmitting
3686 * a Probe frame during active scanning
3687 * ChannelList
3688 * MinChannelTime (>= ProbeDelay), in TU
3689 * MaxChannelTime: (>= MinChannelTime), in TU
3690 */
3691
3692 /* MLME-SCAN.confirm
3693 * BSSDescriptionSet
3694 * ResultCode: SUCCESS, INVALID_PARAMETERS
3695 */
3696
3697 if (local->sta_sw_scanning || local->sta_hw_scanning) {
3698 if (local->scan_sdata == scan_sdata)
3699 return 0;
3700 return -EBUSY;
3701 }
3702
3703 if (local->ops->hw_scan) {
3704 int rc = local->ops->hw_scan(local_to_hw(local),
3705 ssid, ssid_len);
3706 if (!rc) {
3707 local->sta_hw_scanning = 1;
3708 local->scan_sdata = scan_sdata;
3709 }
3710 return rc;
3711 }
3712
3713 local->sta_sw_scanning = 1;
3714
3715 rcu_read_lock();
3716 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
3717 if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
3718 if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
3719 netif_tx_stop_all_queues(sdata->dev);
3720 ieee80211_send_nullfunc(local, sdata, 1);
3721 }
3722 } else
3723 netif_tx_stop_all_queues(sdata->dev);
3724 }
3725 rcu_read_unlock();
3726
3727 if (ssid) {
3728 local->scan_ssid_len = ssid_len;
3729 memcpy(local->scan_ssid, ssid, ssid_len);
3730 } else
3731 local->scan_ssid_len = 0;
3732 local->scan_state = SCAN_SET_CHANNEL;
3733 local->scan_channel_idx = 0;
3734 local->scan_band = IEEE80211_BAND_2GHZ;
3735 local->scan_sdata = scan_sdata;
3736
3737 netif_addr_lock_bh(local->mdev);
3738 local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
3739 local->ops->configure_filter(local_to_hw(local),
3740 FIF_BCN_PRBRESP_PROMISC,
3741 &local->filter_flags,
3742 local->mdev->mc_count,
3743 local->mdev->mc_list);
3744 netif_addr_unlock_bh(local->mdev);
3745
3746 /* TODO: start scan as soon as all nullfunc frames are ACKed */
3747 queue_delayed_work(local->hw.workqueue, &local->scan_work,
3748 IEEE80211_CHANNEL_TIME);
3749
3750 return 0;
3751}
3752
3753
3754int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len)
3755{
3756 struct ieee80211_if_sta *ifsta = &sdata->u.sta;
3757 struct ieee80211_local *local = sdata->local;
3758
3759 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
3760 return ieee80211_sta_start_scan(sdata, ssid, ssid_len);
3761
3762 if (local->sta_sw_scanning || local->sta_hw_scanning) {
3763 if (local->scan_sdata == sdata)
3764 return 0;
3765 return -EBUSY;
3766 }
3767
3768 ifsta->scan_ssid_len = ssid_len;
3769 if (ssid_len)
3770 memcpy(ifsta->scan_ssid, ssid, ssid_len);
3771 set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
3772 queue_work(local->hw.workqueue, &ifsta->work);
3773 return 0;
3774}
3775
3776
3777static void ieee80211_sta_add_scan_ies(struct iw_request_info *info,
3778 struct ieee80211_sta_bss *bss,
3779 char **current_ev, char *end_buf)
3780{
3781 u8 *pos, *end, *next;
3782 struct iw_event iwe;
3783
3784 if (bss == NULL || bss->ies == NULL)
3785 return;
3786
3787 /*
3788 * If needed, fragment the IEs buffer (at IE boundaries) into short
3789 * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
3790 */
3791 pos = bss->ies;
3792 end = pos + bss->ies_len;
3793
3794 while (end - pos > IW_GENERIC_IE_MAX) {
3795 next = pos + 2 + pos[1];
3796 while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX)
3797 next = next + 2 + next[1];
3798
3799 memset(&iwe, 0, sizeof(iwe));
3800 iwe.cmd = IWEVGENIE;
3801 iwe.u.data.length = next - pos;
3802 *current_ev = iwe_stream_add_point(info, *current_ev,
3803 end_buf, &iwe, pos);
3804
3805 pos = next;
3806 }
3807
3808 if (end > pos) {
3809 memset(&iwe, 0, sizeof(iwe));
3810 iwe.cmd = IWEVGENIE;
3811 iwe.u.data.length = end - pos;
3812 *current_ev = iwe_stream_add_point(info, *current_ev,
3813 end_buf, &iwe, pos);
3814 }
3815}
3816
3817
3818static char *
3819ieee80211_sta_scan_result(struct ieee80211_local *local,
3820 struct iw_request_info *info,
3821 struct ieee80211_sta_bss *bss,
3822 char *current_ev, char *end_buf)
3823{
3824 struct iw_event iwe;
3825 char *buf;
3826
3827 if (time_after(jiffies,
3828 bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
3829 return current_ev;
3830
3831 memset(&iwe, 0, sizeof(iwe));
3832 iwe.cmd = SIOCGIWAP;
3833 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
3834 memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
3835 current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
3836 IW_EV_ADDR_LEN);
3837
3838 memset(&iwe, 0, sizeof(iwe));
3839 iwe.cmd = SIOCGIWESSID;
3840 if (bss_mesh_cfg(bss)) {
3841 iwe.u.data.length = bss_mesh_id_len(bss);
3842 iwe.u.data.flags = 1;
3843 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
3844 &iwe, bss_mesh_id(bss));
3845 } else {
3846 iwe.u.data.length = bss->ssid_len;
3847 iwe.u.data.flags = 1;
3848 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
3849 &iwe, bss->ssid);
3850 }
3851
3852 if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
3853 || bss_mesh_cfg(bss)) {
3854 memset(&iwe, 0, sizeof(iwe));
3855 iwe.cmd = SIOCGIWMODE;
3856 if (bss_mesh_cfg(bss))
3857 iwe.u.mode = IW_MODE_MESH;
3858 else if (bss->capability & WLAN_CAPABILITY_ESS)
3859 iwe.u.mode = IW_MODE_MASTER;
3860 else
3861 iwe.u.mode = IW_MODE_ADHOC;
3862 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
3863 &iwe, IW_EV_UINT_LEN);
3864 }
3865
3866 memset(&iwe, 0, sizeof(iwe));
3867 iwe.cmd = SIOCGIWFREQ;
3868 iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
3869 iwe.u.freq.e = 0;
3870 current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
3871 IW_EV_FREQ_LEN);
3872
3873 memset(&iwe, 0, sizeof(iwe));
3874 iwe.cmd = SIOCGIWFREQ;
3875 iwe.u.freq.m = bss->freq;
3876 iwe.u.freq.e = 6;
3877 current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
3878 IW_EV_FREQ_LEN);
3879 memset(&iwe, 0, sizeof(iwe));
3880 iwe.cmd = IWEVQUAL;
3881 iwe.u.qual.qual = bss->qual;
3882 iwe.u.qual.level = bss->signal;
3883 iwe.u.qual.noise = bss->noise;
3884 iwe.u.qual.updated = local->wstats_flags;
3885 current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
3886 IW_EV_QUAL_LEN);
3887
3888 memset(&iwe, 0, sizeof(iwe));
3889 iwe.cmd = SIOCGIWENCODE;
3890 if (bss->capability & WLAN_CAPABILITY_PRIVACY)
3891 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
3892 else
3893 iwe.u.data.flags = IW_ENCODE_DISABLED;
3894 iwe.u.data.length = 0;
3895 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
3896 &iwe, "");
3897
3898 ieee80211_sta_add_scan_ies(info, bss, &current_ev, end_buf);
3899
3900 if (bss->supp_rates_len > 0) {
3901 /* display all supported rates in readable format */
3902 char *p = current_ev + iwe_stream_lcp_len(info);
3903 int i;
3904
3905 memset(&iwe, 0, sizeof(iwe));
3906 iwe.cmd = SIOCGIWRATE;
3907 /* Those two flags are ignored... */
3908 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
3909
3910 for (i = 0; i < bss->supp_rates_len; i++) {
3911 iwe.u.bitrate.value = ((bss->supp_rates[i] &
3912 0x7f) * 500000);
3913 p = iwe_stream_add_value(info, current_ev, p,
3914 end_buf, &iwe, IW_EV_PARAM_LEN);
3915 }
3916 current_ev = p;
3917 }
3918
3919 buf = kmalloc(30, GFP_ATOMIC);
3920 if (buf) {
3921 memset(&iwe, 0, sizeof(iwe));
3922 iwe.cmd = IWEVCUSTOM;
3923 sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
3924 iwe.u.data.length = strlen(buf);
3925 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
3926 &iwe, buf);
3927 memset(&iwe, 0, sizeof(iwe));
3928 iwe.cmd = IWEVCUSTOM;
3929 sprintf(buf, " Last beacon: %dms ago",
3930 jiffies_to_msecs(jiffies - bss->last_update));
3931 iwe.u.data.length = strlen(buf);
3932 current_ev = iwe_stream_add_point(info, current_ev,
3933 end_buf, &iwe, buf);
3934 kfree(buf);
3935 }
3936
3937 if (bss_mesh_cfg(bss)) {
3938 u8 *cfg = bss_mesh_cfg(bss);
3939 buf = kmalloc(50, GFP_ATOMIC);
3940 if (buf) {
3941 memset(&iwe, 0, sizeof(iwe));
3942 iwe.cmd = IWEVCUSTOM;
3943 sprintf(buf, "Mesh network (version %d)", cfg[0]);
3944 iwe.u.data.length = strlen(buf);
3945 current_ev = iwe_stream_add_point(info, current_ev,
3946 end_buf,
3947 &iwe, buf);
3948 sprintf(buf, "Path Selection Protocol ID: "
3949 "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
3950 cfg[4]);
3951 iwe.u.data.length = strlen(buf);
3952 current_ev = iwe_stream_add_point(info, current_ev,
3953 end_buf,
3954 &iwe, buf);
3955 sprintf(buf, "Path Selection Metric ID: "
3956 "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
3957 cfg[8]);
3958 iwe.u.data.length = strlen(buf);
3959 current_ev = iwe_stream_add_point(info, current_ev,
3960 end_buf,
3961 &iwe, buf);
3962 sprintf(buf, "Congestion Control Mode ID: "
3963 "0x%02X%02X%02X%02X", cfg[9], cfg[10],
3964 cfg[11], cfg[12]);
3965 iwe.u.data.length = strlen(buf);
3966 current_ev = iwe_stream_add_point(info, current_ev,
3967 end_buf,
3968 &iwe, buf);
3969 sprintf(buf, "Channel Precedence: "
3970 "0x%02X%02X%02X%02X", cfg[13], cfg[14],
3971 cfg[15], cfg[16]);
3972 iwe.u.data.length = strlen(buf);
3973 current_ev = iwe_stream_add_point(info, current_ev,
3974 end_buf,
3975 &iwe, buf);
3976 kfree(buf);
3977 }
3978 }
3979
3980 return current_ev;
3981}
3982
3983
3984int ieee80211_sta_scan_results(struct ieee80211_local *local,
3985 struct iw_request_info *info,
3986 char *buf, size_t len)
3987{
3988 char *current_ev = buf;
3989 char *end_buf = buf + len;
3990 struct ieee80211_sta_bss *bss;
3991
3992 spin_lock_bh(&local->sta_bss_lock);
3993 list_for_each_entry(bss, &local->sta_bss_list, list) {
3994 if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
3995 spin_unlock_bh(&local->sta_bss_lock);
3996 return -E2BIG;
3997 }
3998 current_ev = ieee80211_sta_scan_result(local, info, bss,
3999 current_ev, end_buf);
4000 }
4001 spin_unlock_bh(&local->sta_bss_lock);
4002 return current_ev - buf;
4003}
4004
4005
4006int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len) 3465int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
4007{ 3466{
4008 struct ieee80211_if_sta *ifsta = &sdata->u.sta; 3467 struct ieee80211_if_sta *ifsta = &sdata->u.sta;
@@ -4290,3 +3749,17 @@ void ieee80211_sta_work(struct work_struct *work)
4290 WLAN_REASON_UNSPECIFIED); 3749 WLAN_REASON_UNSPECIFIED);
4291 } 3750 }
4292} 3751}
3752
3753void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
3754{
3755 struct ieee80211_sub_if_data *sdata = local->scan_sdata;
3756 struct ieee80211_if_sta *ifsta;
3757
3758 if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
3759 ifsta = &sdata->u.sta;
3760 if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
3761 (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
3762 !ieee80211_sta_active_ibss(sdata)))
3763 ieee80211_sta_find_ibss(sdata, ifsta);
3764 }
3765}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-19 20:53:14 -0500