diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/313-v5.16-nl80211-MBSSID-and-EMA-support-in-AP-mode.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/313-v5.16-nl80211-MBSSID-and-EMA-support-in-AP-mode.patch | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/package/kernel/mac80211/patches/subsys/313-v5.16-nl80211-MBSSID-and-EMA-support-in-AP-mode.patch b/package/kernel/mac80211/patches/subsys/313-v5.16-nl80211-MBSSID-and-EMA-support-in-AP-mode.patch deleted file mode 100644 index 429886d701..0000000000 --- a/package/kernel/mac80211/patches/subsys/313-v5.16-nl80211-MBSSID-and-EMA-support-in-AP-mode.patch +++ /dev/null @@ -1,493 +0,0 @@ -From: John Crispin <john@phrozen.org> -Date: Wed, 15 Sep 2021 19:54:34 -0700 -Subject: [PATCH] nl80211: MBSSID and EMA support in AP mode - -Add new attributes to configure support for multiple BSSID -and advanced multi-BSSID advertisements (EMA) in AP mode. - -- NL80211_ATTR_MBSSID_CONFIG used for per interface configuration. -- NL80211_ATTR_MBSSID_ELEMS used to MBSSID elements for beacons. - -Memory for the elements is allocated dynamically. This change frees -the memory in existing functions which call nl80211_parse_beacon(), -a comment is added to indicate the new references to do the same. - -Signed-off-by: John Crispin <john@phrozen.org> -Co-developed-by: Aloka Dixit <alokad@codeaurora.org> -Signed-off-by: Aloka Dixit <alokad@codeaurora.org> -Link: https://lore.kernel.org/r/20210916025437.29138-2-alokad@codeaurora.org -[don't leave ERR_PTR hanging around] -Signed-off-by: Johannes Berg <johannes.berg@intel.com> ---- - ---- a/include/net/cfg80211.h -+++ b/include/net/cfg80211.h -@@ -1046,6 +1046,36 @@ struct cfg80211_crypto_settings { - }; - - /** -+ * struct cfg80211_mbssid_config - AP settings for multi bssid -+ * -+ * @tx_wdev: pointer to the transmitted interface in the MBSSID set -+ * @index: index of this AP in the multi bssid group. -+ * @ema: set to true if the beacons should be sent out in EMA mode. -+ */ -+struct cfg80211_mbssid_config { -+ struct wireless_dev *tx_wdev; -+ u8 index; -+ bool ema; -+}; -+ -+/** -+ * struct cfg80211_mbssid_elems - Multiple BSSID elements -+ * -+ * @cnt: Number of elements in array %elems. -+ * -+ * @elem: Array of multiple BSSID element(s) to be added into Beacon frames. -+ * @elem.data: Data for multiple BSSID elements. -+ * @elem.len: Length of data. -+ */ -+struct cfg80211_mbssid_elems { -+ u8 cnt; -+ struct { -+ const u8 *data; -+ size_t len; -+ } elem[]; -+}; -+ -+/** - * struct cfg80211_beacon_data - beacon data - * @head: head portion of beacon (before TIM IE) - * or %NULL if not changed -@@ -1063,6 +1093,7 @@ struct cfg80211_crypto_settings { - * @assocresp_ies_len: length of assocresp_ies in octets - * @probe_resp_len: length of probe response template (@probe_resp) - * @probe_resp: probe response template (AP mode only) -+ * @mbssid_ies: multiple BSSID elements - * @ftm_responder: enable FTM responder functionality; -1 for no change - * (which also implies no change in LCI/civic location data) - * @lci: Measurement Report element content, starting with Measurement Token -@@ -1080,6 +1111,7 @@ struct cfg80211_beacon_data { - const u8 *probe_resp; - const u8 *lci; - const u8 *civicloc; -+ struct cfg80211_mbssid_elems *mbssid_ies; - s8 ftm_responder; - - size_t head_len, tail_len; -@@ -1194,6 +1226,7 @@ enum cfg80211_ap_settings_flags { - * @he_oper: HE operation IE (or %NULL if HE isn't enabled) - * @fils_discovery: FILS discovery transmission parameters - * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters -+ * @mbssid_config: AP settings for multiple bssid - */ - struct cfg80211_ap_settings { - struct cfg80211_chan_def chandef; -@@ -1226,6 +1259,7 @@ struct cfg80211_ap_settings { - struct cfg80211_he_bss_color he_bss_color; - struct cfg80211_fils_discovery fils_discovery; - struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp; -+ struct cfg80211_mbssid_config mbssid_config; - }; - - /** -@@ -4986,6 +5020,13 @@ struct wiphy_iftype_akm_suites { - * %NL80211_TID_CONFIG_ATTR_RETRY_LONG attributes - * @sar_capa: SAR control capabilities - * @rfkill: a pointer to the rfkill structure -+ * -+ * @mbssid_max_interfaces: maximum number of interfaces supported by the driver -+ * in a multiple BSSID set. This field must be set to a non-zero value -+ * by the driver to advertise MBSSID support. -+ * @mbssid_max_ema_profile_periodicity: maximum profile periodicity supported by -+ * the driver. Setting this field to a non-zero value indicates that the -+ * driver supports enhanced multi-BSSID advertisements (EMA AP). - */ - struct wiphy { - struct mutex mtx; -@@ -5133,6 +5174,9 @@ struct wiphy { - - struct rfkill *rfkill; - -+ u8 mbssid_max_interfaces; -+ u8 ema_max_profile_periodicity; -+ - char priv[] __aligned(NETDEV_ALIGN); - }; - ---- a/include/uapi/linux/nl80211.h -+++ b/include/uapi/linux/nl80211.h -@@ -337,7 +337,10 @@ - * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes - * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from - * userspace to request deletion of a virtual interface, then requires -- * attribute %NL80211_ATTR_IFINDEX. -+ * attribute %NL80211_ATTR_IFINDEX. If multiple BSSID advertisements are -+ * enabled using %NL80211_ATTR_MBSSID_CONFIG, %NL80211_ATTR_MBSSID_ELEMS, -+ * and if this command is used for the transmitting interface, then all -+ * the non-transmitting interfaces are deleted as well. - * - * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified - * by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC. -@@ -2593,6 +2596,18 @@ enum nl80211_commands { - * @NL80211_ATTR_COLOR_CHANGE_ELEMS: Nested set of attributes containing the IE - * information for the time while performing a color switch. - * -+ * @NL80211_ATTR_MBSSID_CONFIG: Nested attribute for multiple BSSID -+ * advertisements (MBSSID) parameters in AP mode. -+ * Kernel uses this attribute to indicate the driver's support for MBSSID -+ * and enhanced multi-BSSID advertisements (EMA AP) to the userspace. -+ * Userspace should use this attribute to configure per interface MBSSID -+ * parameters. -+ * See &enum nl80211_mbssid_config_attributes for details. -+ * -+ * @NL80211_ATTR_MBSSID_ELEMS: Nested parameter to pass multiple BSSID elements. -+ * Mandatory parameter for the transmitting interface to enable MBSSID. -+ * Optional for the non-transmitting interfaces. -+ * - * @NUM_NL80211_ATTR: total number of nl80211_attrs available - * @NL80211_ATTR_MAX: highest attribute number currently defined - * @__NL80211_ATTR_AFTER_LAST: internal use -@@ -3096,6 +3111,9 @@ enum nl80211_attrs { - NL80211_ATTR_COLOR_CHANGE_COLOR, - NL80211_ATTR_COLOR_CHANGE_ELEMS, - -+ NL80211_ATTR_MBSSID_CONFIG, -+ NL80211_ATTR_MBSSID_ELEMS, -+ - /* add attributes here, update the policy in nl80211.c */ - - __NL80211_ATTR_AFTER_LAST, -@@ -7349,4 +7367,60 @@ enum nl80211_sar_specs_attrs { - NL80211_SAR_ATTR_SPECS_MAX = __NL80211_SAR_ATTR_SPECS_LAST - 1, - }; - -+/** -+ * enum nl80211_mbssid_config_attributes - multiple BSSID (MBSSID) and enhanced -+ * multi-BSSID advertisements (EMA) in AP mode. -+ * Kernel uses some of these attributes to advertise driver's support for -+ * MBSSID and EMA. -+ * Remaining attributes should be used by the userspace to configure the -+ * features. -+ * -+ * @__NL80211_MBSSID_CONFIG_ATTR_INVALID: Invalid -+ * -+ * @NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES: Used by the kernel to advertise -+ * the maximum number of MBSSID interfaces supported by the driver. -+ * Driver should indicate MBSSID support by setting -+ * wiphy->mbssid_max_interfaces to a value more than or equal to 2. -+ * -+ * @NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY: Used by the kernel -+ * to advertise the maximum profile periodicity supported by the driver -+ * if EMA is enabled. Driver should indicate EMA support to the userspace -+ * by setting wiphy->mbssid_max_ema_profile_periodicity to -+ * a non-zero value. -+ * -+ * @NL80211_MBSSID_CONFIG_ATTR_INDEX: Mandatory parameter to pass the index of -+ * this BSS (u8) in the multiple BSSID set. -+ * Value must be set to 0 for the transmitting interface and non-zero for -+ * all non-transmitting interfaces. The userspace will be responsible -+ * for using unique indices for the interfaces. -+ * Range: 0 to wiphy->mbssid_max_interfaces-1. -+ * -+ * @NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX: Mandatory parameter for -+ * a non-transmitted profile which provides the interface index (u32) of -+ * the transmitted profile. The value must match one of the interface -+ * indices advertised by the kernel. Optional if the interface being set up -+ * is the transmitting one, however, if provided then the value must match -+ * the interface index of the same. -+ * -+ * @NL80211_MBSSID_CONFIG_ATTR_EMA: Flag used to enable EMA AP feature. -+ * Setting this flag is permitted only if the driver advertises EMA support -+ * by setting wiphy->mbssid_max_ema_profile_periodicity to non-zero. -+ * -+ * @__NL80211_MBSSID_CONFIG_ATTR_LAST: Internal -+ * @NL80211_MBSSID_CONFIG_ATTR_MAX: highest attribute -+ */ -+enum nl80211_mbssid_config_attributes { -+ __NL80211_MBSSID_CONFIG_ATTR_INVALID, -+ -+ NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES, -+ NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY, -+ NL80211_MBSSID_CONFIG_ATTR_INDEX, -+ NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX, -+ NL80211_MBSSID_CONFIG_ATTR_EMA, -+ -+ /* keep last */ -+ __NL80211_MBSSID_CONFIG_ATTR_LAST, -+ NL80211_MBSSID_CONFIG_ATTR_MAX = __NL80211_MBSSID_CONFIG_ATTR_LAST - 1, -+}; -+ - #endif /* __LINUX_NL80211_H */ ---- a/net/wireless/nl80211.c -+++ b/net/wireless/nl80211.c -@@ -442,6 +442,16 @@ sar_policy[NL80211_SAR_ATTR_MAX + 1] = { - [NL80211_SAR_ATTR_SPECS] = NLA_POLICY_NESTED_ARRAY(sar_specs_policy), - }; - -+static const struct nla_policy -+nl80211_mbssid_config_policy[NL80211_MBSSID_CONFIG_ATTR_MAX + 1] = { -+ [NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES] = NLA_POLICY_MIN(NLA_U8, 2), -+ [NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY] = -+ NLA_POLICY_MIN(NLA_U8, 1), -+ [NL80211_MBSSID_CONFIG_ATTR_INDEX] = { .type = NLA_U8 }, -+ [NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX] = { .type = NLA_U32 }, -+ [NL80211_MBSSID_CONFIG_ATTR_EMA] = { .type = NLA_FLAG }, -+}; -+ - static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { - [0] = { .strict_start_type = NL80211_ATTR_HE_OBSS_PD }, - [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, -@@ -788,6 +798,9 @@ static const struct nla_policy nl80211_p - [NL80211_ATTR_COLOR_CHANGE_COUNT] = { .type = NLA_U8 }, - [NL80211_ATTR_COLOR_CHANGE_COLOR] = { .type = NLA_U8 }, - [NL80211_ATTR_COLOR_CHANGE_ELEMS] = NLA_POLICY_NESTED(nl80211_policy), -+ [NL80211_ATTR_MBSSID_CONFIG] = -+ NLA_POLICY_NESTED(nl80211_mbssid_config_policy), -+ [NL80211_ATTR_MBSSID_ELEMS] = { .type = NLA_NESTED }, - }; - - /* policy for the key attributes */ -@@ -2236,6 +2249,35 @@ fail: - return -ENOBUFS; - } - -+static int nl80211_put_mbssid_support(struct wiphy *wiphy, struct sk_buff *msg) -+{ -+ struct nlattr *config; -+ -+ if (!wiphy->mbssid_max_interfaces) -+ return 0; -+ -+ config = nla_nest_start(msg, NL80211_ATTR_MBSSID_CONFIG); -+ if (!config) -+ return -ENOBUFS; -+ -+ if (nla_put_u8(msg, NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES, -+ wiphy->mbssid_max_interfaces)) -+ goto fail; -+ -+ if (wiphy->ema_max_profile_periodicity && -+ nla_put_u8(msg, -+ NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY, -+ wiphy->ema_max_profile_periodicity)) -+ goto fail; -+ -+ nla_nest_end(msg, config); -+ return 0; -+ -+fail: -+ nla_nest_cancel(msg, config); -+ return -ENOBUFS; -+} -+ - struct nl80211_dump_wiphy_state { - s64 filter_wiphy; - long start; -@@ -2821,6 +2863,9 @@ static int nl80211_send_wiphy(struct cfg - if (nl80211_put_sar_specs(rdev, msg)) - goto nla_put_failure; - -+ if (nl80211_put_mbssid_support(&rdev->wiphy, msg)) -+ goto nla_put_failure; -+ - /* done */ - state->split_start = 0; - break; -@@ -5020,6 +5065,96 @@ static int validate_beacon_tx_rate(struc - return 0; - } - -+static int nl80211_parse_mbssid_config(struct wiphy *wiphy, -+ struct net_device *dev, -+ struct nlattr *attrs, -+ struct cfg80211_mbssid_config *config, -+ u8 num_elems) -+{ -+ struct nlattr *tb[NL80211_MBSSID_CONFIG_ATTR_MAX + 1]; -+ -+ if (!wiphy->mbssid_max_interfaces) -+ return -EOPNOTSUPP; -+ -+ if (nla_parse_nested(tb, NL80211_MBSSID_CONFIG_ATTR_MAX, attrs, NULL, -+ NULL) || -+ !tb[NL80211_MBSSID_CONFIG_ATTR_INDEX]) -+ return -EINVAL; -+ -+ config->ema = nla_get_flag(tb[NL80211_MBSSID_CONFIG_ATTR_EMA]); -+ if (config->ema) { -+ if (!wiphy->ema_max_profile_periodicity) -+ return -EOPNOTSUPP; -+ -+ if (num_elems > wiphy->ema_max_profile_periodicity) -+ return -EINVAL; -+ } -+ -+ config->index = nla_get_u8(tb[NL80211_MBSSID_CONFIG_ATTR_INDEX]); -+ if (config->index >= wiphy->mbssid_max_interfaces || -+ (!config->index && !num_elems)) -+ return -EINVAL; -+ -+ if (tb[NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX]) { -+ u32 tx_ifindex = -+ nla_get_u32(tb[NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX]); -+ -+ if ((!config->index && tx_ifindex != dev->ifindex) || -+ (config->index && tx_ifindex == dev->ifindex)) -+ return -EINVAL; -+ -+ if (tx_ifindex != dev->ifindex) { -+ struct net_device *tx_netdev = -+ dev_get_by_index(wiphy_net(wiphy), tx_ifindex); -+ -+ if (!tx_netdev || !tx_netdev->ieee80211_ptr || -+ tx_netdev->ieee80211_ptr->wiphy != wiphy || -+ tx_netdev->ieee80211_ptr->iftype != -+ NL80211_IFTYPE_AP) { -+ dev_put(tx_netdev); -+ return -EINVAL; -+ } -+ -+ config->tx_wdev = tx_netdev->ieee80211_ptr; -+ } else { -+ config->tx_wdev = dev->ieee80211_ptr; -+ } -+ } else if (!config->index) { -+ config->tx_wdev = dev->ieee80211_ptr; -+ } else { -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+static struct cfg80211_mbssid_elems * -+nl80211_parse_mbssid_elems(struct wiphy *wiphy, struct nlattr *attrs) -+{ -+ struct nlattr *nl_elems; -+ struct cfg80211_mbssid_elems *elems; -+ int rem_elems; -+ u8 i = 0, num_elems = 0; -+ -+ if (!wiphy->mbssid_max_interfaces) -+ return ERR_PTR(-EINVAL); -+ -+ nla_for_each_nested(nl_elems, attrs, rem_elems) -+ num_elems++; -+ -+ elems = kzalloc(struct_size(elems, elem, num_elems), GFP_KERNEL); -+ if (!elems) -+ return ERR_PTR(-ENOMEM); -+ -+ nla_for_each_nested(nl_elems, attrs, rem_elems) { -+ elems->elem[i].data = nla_data(nl_elems); -+ elems->elem[i].len = nla_len(nl_elems); -+ i++; -+ } -+ elems->cnt = num_elems; -+ return elems; -+} -+ - static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev, - struct nlattr *attrs[], - struct cfg80211_beacon_data *bcn) -@@ -5100,6 +5235,17 @@ static int nl80211_parse_beacon(struct c - bcn->ftm_responder = -1; - } - -+ if (attrs[NL80211_ATTR_MBSSID_ELEMS]) { -+ struct cfg80211_mbssid_elems *mbssid = -+ nl80211_parse_mbssid_elems(&rdev->wiphy, -+ attrs[NL80211_ATTR_MBSSID_ELEMS]); -+ -+ if (IS_ERR(mbssid)) -+ return PTR_ERR(mbssid); -+ -+ bcn->mbssid_ies = mbssid; -+ } -+ - return 0; - } - -@@ -5556,6 +5702,17 @@ static int nl80211_start_ap(struct sk_bu - goto out; - } - -+ if (info->attrs[NL80211_ATTR_MBSSID_CONFIG]) { -+ err = nl80211_parse_mbssid_config(&rdev->wiphy, dev, -+ info->attrs[NL80211_ATTR_MBSSID_CONFIG], -+ ¶ms.mbssid_config, -+ params.beacon.mbssid_ies ? -+ params.beacon.mbssid_ies->cnt : -+ 0); -+ if (err) -+ goto out; -+ } -+ - nl80211_calculate_ap_params(¶ms); - - if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT]) -@@ -5577,6 +5734,11 @@ static int nl80211_start_ap(struct sk_bu - - out: - kfree(params.acl); -+ kfree(params.beacon.mbssid_ies); -+ if (params.mbssid_config.tx_wdev && -+ params.mbssid_config.tx_wdev->netdev && -+ params.mbssid_config.tx_wdev->netdev != dev) -+ dev_put(params.mbssid_config.tx_wdev->netdev); - - return err; - } -@@ -5601,12 +5763,14 @@ static int nl80211_set_beacon(struct sk_ - - err = nl80211_parse_beacon(rdev, info->attrs, ¶ms); - if (err) -- return err; -+ goto out; - - wdev_lock(wdev); - err = rdev_change_beacon(rdev, dev, ¶ms); - wdev_unlock(wdev); - -+out: -+ kfree(params.mbssid_ies); - return err; - } - -@@ -9283,12 +9447,14 @@ static int nl80211_channel_switch(struct - - err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon_after); - if (err) -- return err; -+ goto free; - - csa_attrs = kcalloc(NL80211_ATTR_MAX + 1, sizeof(*csa_attrs), - GFP_KERNEL); -- if (!csa_attrs) -- return -ENOMEM; -+ if (!csa_attrs) { -+ err = -ENOMEM; -+ goto free; -+ } - - err = nla_parse_nested_deprecated(csa_attrs, NL80211_ATTR_MAX, - info->attrs[NL80211_ATTR_CSA_IES], -@@ -9407,6 +9573,8 @@ skip_beacons: - wdev_unlock(wdev); - - free: -+ kfree(params.beacon_after.mbssid_ies); -+ kfree(params.beacon_csa.mbssid_ies); - kfree(csa_attrs); - return err; - } -@@ -14959,6 +15127,8 @@ static int nl80211_color_change(struct s - wdev_unlock(wdev); - - out: -+ kfree(params.beacon_next.mbssid_ies); -+ kfree(params.beacon_color_change.mbssid_ies); - kfree(tb); - return err; - } |