^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Some IBSS support code for cfg80211.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/etherdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/if_arp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <net/cfg80211.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "wext-compat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "nl80211.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "rdev-ops.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct ieee80211_channel *channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct cfg80211_bss *bss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #ifdef CONFIG_CFG80211_WEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) union iwreq_data wrqu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) if (!wdev->ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, NULL, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (WARN_ON(!bss))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if (wdev->current_bss) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) cfg80211_unhold_bss(wdev->current_bss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) cfg80211_hold_bss(bss_from_pub(bss));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) wdev->current_bss = bss_from_pub(bss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) cfg80211_upload_connect_keys(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) nl80211_send_ibss_bssid(wiphy_to_rdev(wdev->wiphy), dev, bssid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #ifdef CONFIG_CFG80211_WEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) memset(&wrqu, 0, sizeof(wrqu));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct ieee80211_channel *channel, gfp_t gfp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct cfg80211_event *ev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) trace_cfg80211_ibss_joined(dev, bssid, channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (WARN_ON(!channel))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ev = kzalloc(sizeof(*ev), gfp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (!ev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) ev->type = EVENT_IBSS_JOINED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) memcpy(ev->ij.bssid, bssid, ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) ev->ij.channel = channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) spin_lock_irqsave(&wdev->event_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) list_add_tail(&ev->list, &wdev->event_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) spin_unlock_irqrestore(&wdev->event_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) queue_work(cfg80211_wq, &rdev->event_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) EXPORT_SYMBOL(cfg80211_ibss_joined);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct cfg80211_ibss_params *params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct cfg80211_cached_keys *connkeys)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) ASSERT_RTNL();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ASSERT_WDEV_LOCK(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (wdev->ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return -EALREADY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (!params->basic_rates) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * If no rates were explicitly configured,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * use the mandatory rate set for 11b or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * 11a for maximum compatibility.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct ieee80211_supported_band *sband;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) enum nl80211_band band;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) u32 flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) int j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) band = params->chandef.chan->band;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (band == NL80211_BAND_5GHZ ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) band == NL80211_BAND_6GHZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) flag = IEEE80211_RATE_MANDATORY_A;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) flag = IEEE80211_RATE_MANDATORY_B;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) sband = rdev->wiphy.bands[band];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) for (j = 0; j < sband->n_bitrates; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (sband->bitrates[j].flags & flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) params->basic_rates |= BIT(j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (WARN_ON(connkeys && connkeys->def < 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (WARN_ON(wdev->connect_keys))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) kfree_sensitive(wdev->connect_keys);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) wdev->connect_keys = connkeys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) wdev->ibss_fixed = params->channel_fixed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) wdev->ibss_dfs_possible = params->userspace_handles_dfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) wdev->chandef = params->chandef;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (connkeys) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) params->wep_keys = connkeys->params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) params->wep_tx_key = connkeys->def;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #ifdef CONFIG_CFG80211_WEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) wdev->wext.ibss.chandef = params->chandef;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) err = rdev_join_ibss(rdev, dev, params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) wdev->connect_keys = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) memcpy(wdev->ssid, params->ssid, params->ssid_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) wdev->ssid_len = params->ssid_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) ASSERT_WDEV_LOCK(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) kfree_sensitive(wdev->connect_keys);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) wdev->connect_keys = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) rdev_set_qos_map(rdev, dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * Delete all the keys ... pairwise keys can't really
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * exist any more anyway, but default keys might.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (rdev->ops->del_key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) for (i = 0; i < 6; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) rdev_del_key(rdev, dev, i, false, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (wdev->current_bss) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) cfg80211_unhold_bss(wdev->current_bss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) wdev->current_bss = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) wdev->ssid_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) memset(&wdev->chandef, 0, sizeof(wdev->chandef));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #ifdef CONFIG_CFG80211_WEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (!nowext)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) wdev->wext.ibss.ssid_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) cfg80211_sched_dfs_chan_update(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) __cfg80211_clear_ibss(dev, nowext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct net_device *dev, bool nowext)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ASSERT_WDEV_LOCK(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) if (!wdev->ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return -ENOLINK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) err = rdev_leave_ibss(rdev, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) wdev->conn_owner_nlportid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) __cfg80211_clear_ibss(dev, nowext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct net_device *dev, bool nowext)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) err = __cfg80211_leave_ibss(rdev, dev, nowext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #ifdef CONFIG_CFG80211_WEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct wireless_dev *wdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) struct cfg80211_cached_keys *ck = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) enum nl80211_band band;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) ASSERT_WDEV_LOCK(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (!wdev->wext.ibss.beacon_interval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) wdev->wext.ibss.beacon_interval = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) /* try to find an IBSS channel if none requested ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (!wdev->wext.ibss.chandef.chan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct ieee80211_channel *new_chan = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) for (band = 0; band < NUM_NL80211_BANDS; band++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) struct ieee80211_supported_band *sband;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct ieee80211_channel *chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) sband = rdev->wiphy.bands[band];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (!sband)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) for (i = 0; i < sband->n_channels; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) chan = &sband->channels[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) if (chan->flags & IEEE80211_CHAN_NO_IR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (chan->flags & IEEE80211_CHAN_DISABLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) new_chan = chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (new_chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (!new_chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) cfg80211_chandef_create(&wdev->wext.ibss.chandef, new_chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) NL80211_CHAN_NO_HT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) /* don't join -- SSID is not there */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) if (!wdev->wext.ibss.ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (!netif_running(wdev->netdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (wdev->wext.keys)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) wdev->wext.keys->def = wdev->wext.default_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) wdev->wext.ibss.privacy = wdev->wext.default_key != -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (wdev->wext.keys && wdev->wext.keys->def != -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (!ck)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) ck->params[i].key = ck->data[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) err = __cfg80211_join_ibss(rdev, wdev->netdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) &wdev->wext.ibss, ck);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) kfree(ck);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) struct iw_request_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) struct iw_freq *wextfreq, char *extra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct ieee80211_channel *chan = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) int err, freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) /* call only for ibss! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (!rdev->ops->join_ibss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) freq = cfg80211_wext_freq(wextfreq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) if (freq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (freq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) chan = ieee80211_get_channel(wdev->wiphy, freq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (!chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (chan->flags & IEEE80211_CHAN_NO_IR ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) chan->flags & IEEE80211_CHAN_DISABLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (wdev->wext.ibss.chandef.chan == chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) if (wdev->ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) err = __cfg80211_leave_ibss(rdev, dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (chan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) cfg80211_chandef_create(&wdev->wext.ibss.chandef, chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) NL80211_CHAN_NO_HT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) wdev->wext.ibss.channel_fixed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) /* cfg80211_ibss_wext_join will pick one if needed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) wdev->wext.ibss.channel_fixed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) err = cfg80211_ibss_wext_join(rdev, wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct iw_request_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct iw_freq *freq, char *extra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) struct ieee80211_channel *chan = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) /* call only for ibss! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) if (wdev->current_bss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) chan = wdev->current_bss->pub.channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) else if (wdev->wext.ibss.chandef.chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) chan = wdev->wext.ibss.chandef.chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if (chan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) freq->m = chan->center_freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) freq->e = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) /* no channel if not joining */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) int cfg80211_ibss_wext_siwessid(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) struct iw_request_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) struct iw_point *data, char *ssid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) size_t len = data->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /* call only for ibss! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) if (!rdev->ops->join_ibss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) if (wdev->ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) err = __cfg80211_leave_ibss(rdev, dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /* iwconfig uses nul termination in SSID.. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (len > 0 && ssid[len - 1] == '\0')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) len--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) memcpy(wdev->ssid, ssid, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) wdev->wext.ibss.ssid = wdev->ssid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) wdev->wext.ibss.ssid_len = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) err = cfg80211_ibss_wext_join(rdev, wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) int cfg80211_ibss_wext_giwessid(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct iw_request_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct iw_point *data, char *ssid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* call only for ibss! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) data->flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) if (wdev->ssid_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) data->flags = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) data->length = wdev->ssid_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) memcpy(ssid, wdev->ssid, data->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) } else if (wdev->wext.ibss.ssid && wdev->wext.ibss.ssid_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) data->flags = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) data->length = wdev->wext.ibss.ssid_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) memcpy(ssid, wdev->wext.ibss.ssid, data->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) int cfg80211_ibss_wext_siwap(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) struct iw_request_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) struct sockaddr *ap_addr, char *extra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) u8 *bssid = ap_addr->sa_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /* call only for ibss! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) if (!rdev->ops->join_ibss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (ap_addr->sa_family != ARPHRD_ETHER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) /* automatic mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) bssid = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (bssid && !is_valid_ether_addr(bssid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) /* both automatic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) if (!bssid && !wdev->wext.ibss.bssid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) /* fixed already - and no change */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) if (wdev->wext.ibss.bssid && bssid &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) ether_addr_equal(bssid, wdev->wext.ibss.bssid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (wdev->ssid_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) err = __cfg80211_leave_ibss(rdev, dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (bssid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) wdev->wext.ibss.bssid = wdev->wext.bssid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) wdev->wext.ibss.bssid = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) err = cfg80211_ibss_wext_join(rdev, wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) int cfg80211_ibss_wext_giwap(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) struct iw_request_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) struct sockaddr *ap_addr, char *extra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) /* call only for ibss! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) ap_addr->sa_family = ARPHRD_ETHER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if (wdev->current_bss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) else if (wdev->wext.ibss.bssid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) eth_zero_addr(ap_addr->sa_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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