Orange Pi5 kernel

^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) #include <linux/ieee80211.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #include <net/cfg80211.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include "nl80211.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include "core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include "rdev-ops.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) /* Default values, timeouts in ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #define MESH_TTL 		31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #define MESH_DEFAULT_ELEMENT_TTL 31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #define MESH_MAX_RETR	 	3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #define MESH_RET_T 		100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #define MESH_CONF_T 		100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #define MESH_HOLD_T 		100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #define MESH_PATH_TIMEOUT	5000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #define MESH_RANN_INTERVAL      5000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define MESH_PATH_TO_ROOT_TIMEOUT      6000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define MESH_ROOT_INTERVAL     5000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define MESH_ROOT_CONFIRMATION_INTERVAL 2000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #define MESH_DEFAULT_PLINK_TIMEOUT	1800 /* timeout in seconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * Minimum interval between two consecutive PREQs originated by the same
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  * interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define MESH_PREQ_MIN_INT	10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define MESH_PERR_MIN_INT	100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define MESH_DIAM_TRAVERSAL_TIME 50
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define MESH_RSSI_THRESHOLD	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  * before timing out.  This way it will remain ACTIVE and no data frames
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  * will be unnecessarily held in the pending queue.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define MESH_PATH_REFRESH_TIME			1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) /* Default maximum number of established plinks per interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #define MESH_MAX_ESTAB_PLINKS	32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define MESH_MAX_PREQ_RETRIES	4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #define MESH_SYNC_NEIGHBOR_OFFSET_MAX 50
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define MESH_DEFAULT_BEACON_INTERVAL	1000	/* in 1024 us units (=TUs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #define MESH_DEFAULT_DTIM_PERIOD	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define MESH_DEFAULT_AWAKE_WINDOW	10	/* in 1024 us units (=TUs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) const struct mesh_config default_mesh_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	.dot11MeshRetryTimeout = MESH_RET_T,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	.dot11MeshConfirmTimeout = MESH_CONF_T,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	.dot11MeshHoldingTimeout = MESH_HOLD_T,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	.dot11MeshMaxRetries = MESH_MAX_RETR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	.dot11MeshTTL = MESH_TTL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	.element_ttl = MESH_DEFAULT_ELEMENT_TTL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	.auto_open_plinks = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	.dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	.dot11MeshNbrOffsetMaxNeighbor = MESH_SYNC_NEIGHBOR_OFFSET_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	.dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	.dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	.dot11MeshHWMPperrMinInterval = MESH_PERR_MIN_INT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	.dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	.path_refresh_time = MESH_PATH_REFRESH_TIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	.min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	.dot11MeshHWMPRannInterval = MESH_RANN_INTERVAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	.dot11MeshGateAnnouncementProtocol = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	.dot11MeshForwarding = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	.rssi_threshold = MESH_RSSI_THRESHOLD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	.ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	.dot11MeshHWMPactivePathToRootTimeout = MESH_PATH_TO_ROOT_TIMEOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	.dot11MeshHWMProotInterval = MESH_ROOT_INTERVAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	.dot11MeshHWMPconfirmationInterval = MESH_ROOT_CONFIRMATION_INTERVAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	.power_mode = NL80211_MESH_POWER_ACTIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	.dot11MeshAwakeWindowDuration = MESH_DEFAULT_AWAKE_WINDOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	.plink_timeout = MESH_DEFAULT_PLINK_TIMEOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	.dot11MeshNolearn = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) const struct mesh_setup default_mesh_setup = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	/* cfg80211_join_mesh() will pick a channel if needed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	.sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	.auth_id = 0, /* open */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	.ie = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	.ie_len = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	.is_secure = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	.user_mpm = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	.beacon_interval = MESH_DEFAULT_BEACON_INTERVAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	.dtim_period = MESH_DEFAULT_DTIM_PERIOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 			 struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			 struct mesh_setup *setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 			 const struct mesh_config *conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	ASSERT_WDEV_LOCK(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	if (!(rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	      setup->is_secure)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	if (wdev->mesh_id_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		return -EALREADY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	if (!setup->mesh_id_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	if (!rdev->ops->join_mesh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	if (!setup->chandef.chan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		/* if no channel explicitly given, use preset channel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		setup->chandef = wdev->preset_chandef;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	if (!setup->chandef.chan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		/* if we don't have that either, use the first usable channel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		enum nl80211_band band;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		for (band = 0; band < NUM_NL80211_BANDS; band++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 			struct ieee80211_supported_band *sband;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 			struct ieee80211_channel *chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 			sband = rdev->wiphy.bands[band];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 			if (!sband)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 				continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 			for (i = 0; i < sband->n_channels; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 				chan = &sband->channels[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 				if (chan->flags & (IEEE80211_CHAN_NO_IR |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 						   IEEE80211_CHAN_DISABLED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 						   IEEE80211_CHAN_RADAR))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 					continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 				setup->chandef.chan = chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			if (setup->chandef.chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		/* no usable channel ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		if (!setup->chandef.chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		setup->chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		setup->chandef.center_freq1 = setup->chandef.chan->center_freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	 * check if basic rates are available otherwise use mandatory rates as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	 * basic rates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	if (!setup->basic_rates) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		enum nl80211_bss_scan_width scan_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		struct ieee80211_supported_band *sband =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 				rdev->wiphy.bands[setup->chandef.chan->band];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		if (setup->chandef.chan->band == NL80211_BAND_2GHZ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 			int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 			 * Older versions selected the mandatory rates for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 			 * 2.4 GHz as well, but were broken in that only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 			 * 1 Mbps was regarded as a mandatory rate. Keep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			 * using just 1 Mbps as the default basic rate for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 			 * mesh to be interoperable with older versions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 			for (i = 0; i < sband->n_bitrates; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 				if (sband->bitrates[i].bitrate == 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 					setup->basic_rates = BIT(i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 			scan_width = cfg80211_chandef_to_scan_width(&setup->chandef);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 			setup->basic_rates = ieee80211_mandatory_rates(sband,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 								       scan_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	err = cfg80211_chandef_dfs_required(&rdev->wiphy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 					    &setup->chandef,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 					    NL80211_IFTYPE_MESH_POINT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	if (err > 0 && !setup->userspace_handles_dfs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &setup->chandef,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 				     NL80211_IFTYPE_MESH_POINT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	err = rdev_join_mesh(rdev, dev, conf, setup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	if (!err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		wdev->mesh_id_len = setup->mesh_id_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		wdev->chandef = setup->chandef;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		wdev->beacon_interval = setup->beacon_interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 			      struct wireless_dev *wdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 			      struct cfg80211_chan_def *chandef)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	 * Workaround for libertas (only!), it puts the interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	 * into mesh mode but doesn't implement join_mesh. Instead,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	 * it is configured via sysfs and then joins the mesh when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	 * you set the channel. Note that the libertas mesh isn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	 * compatible with 802.11 mesh.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	if (rdev->ops->libertas_set_mesh_channel) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		if (chandef->width != NL80211_CHAN_WIDTH_20_NOHT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		if (!netif_running(wdev->netdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 			return -ENETDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		err = rdev_libertas_set_mesh_channel(rdev, wdev->netdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 						     chandef->chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		if (!err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 			wdev->chandef = *chandef;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	if (wdev->mesh_id_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	wdev->preset_chandef = *chandef;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 			  struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	ASSERT_WDEV_LOCK(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	if (!rdev->ops->leave_mesh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	if (!wdev->mesh_id_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		return -ENOTCONN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	err = rdev_leave_mesh(rdev, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	if (!err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		wdev->conn_owner_nlportid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		wdev->mesh_id_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		wdev->beacon_interval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		memset(&wdev->chandef, 0, sizeof(wdev->chandef));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		rdev_set_qos_map(rdev, dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		cfg80211_sched_dfs_chan_update(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 			struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	struct wireless_dev *wdev = dev->ieee80211_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	wdev_lock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	err = __cfg80211_leave_mesh(rdev, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	wdev_unlock(wdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }