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Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c588
1 files changed, 521 insertions, 67 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 25d217d90807..af8d84a4a5b2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -349,6 +349,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
[NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
+ [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
+ [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
+ [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
+ [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
+ [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
};
/* policy for the key attributes */
@@ -403,6 +408,14 @@ nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
[NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
};
+/* policy for coalesce rule attributes */
+static const struct nla_policy
+nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
+ [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
+ [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
+ [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
+};
+
/* policy for GTK rekey offload attributes */
static const struct nla_policy
nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
@@ -441,10 +454,12 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
goto out_unlock;
}
*rdev = wiphy_to_dev((*wdev)->wiphy);
- cb->args[0] = (*rdev)->wiphy_idx;
+ /* 0 is the first index - add 1 to parse only once */
+ cb->args[0] = (*rdev)->wiphy_idx + 1;
cb->args[1] = (*wdev)->identifier;
} else {
- struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
+ /* subtract the 1 again here */
+ struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
struct wireless_dev *tmp;
if (!wiphy) {
@@ -974,7 +989,7 @@ static int nl80211_send_wowlan(struct sk_buff *msg,
return -ENOBUFS;
if (dev->wiphy.wowlan->n_patterns) {
- struct nl80211_wowlan_pattern_support pat = {
+ struct nl80211_pattern_support pat = {
.max_patterns = dev->wiphy.wowlan->n_patterns,
.min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
.max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
@@ -995,6 +1010,27 @@ static int nl80211_send_wowlan(struct sk_buff *msg,
}
#endif
+static int nl80211_send_coalesce(struct sk_buff *msg,
+ struct cfg80211_registered_device *dev)
+{
+ struct nl80211_coalesce_rule_support rule;
+
+ if (!dev->wiphy.coalesce)
+ return 0;
+
+ rule.max_rules = dev->wiphy.coalesce->n_rules;
+ rule.max_delay = dev->wiphy.coalesce->max_delay;
+ rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
+ rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
+ rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
+ rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
+
+ if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
+ return -ENOBUFS;
+
+ return 0;
+}
+
static int nl80211_send_band_rateinfo(struct sk_buff *msg,
struct ieee80211_supported_band *sband)
{
@@ -1393,6 +1429,8 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
if (state->split) {
CMD(crit_proto_start, CRIT_PROTOCOL_START);
CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
+ if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
+ CMD(channel_switch, CHANNEL_SWITCH);
}
#ifdef CONFIG_NL80211_TESTMODE
@@ -1513,6 +1551,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
dev->wiphy.vht_capa_mod_mask))
goto nla_put_failure;
+ state->split_start++;
+ break;
+ case 10:
+ if (nl80211_send_coalesce(msg, dev))
+ goto nla_put_failure;
+
/* done */
state->split_start = 0;
break;
@@ -2620,8 +2664,8 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_NEW_KEY);
- if (IS_ERR(hdr))
- return PTR_ERR(hdr);
+ if (!hdr)
+ return -ENOBUFS;
cookie.msg = msg;
cookie.idx = key_idx;
@@ -5578,6 +5622,111 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
return err;
}
+static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_csa_settings params;
+ /* csa_attrs is defined static to avoid waste of stack size - this
+ * function is called under RTNL lock, so this should not be a problem.
+ */
+ static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
+ u8 radar_detect_width = 0;
+ int err;
+
+ if (!rdev->ops->channel_switch ||
+ !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
+ return -EOPNOTSUPP;
+
+ /* may add IBSS support later */
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EOPNOTSUPP;
+
+ memset(&params, 0, sizeof(params));
+
+ if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
+ !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
+ return -EINVAL;
+
+ /* only important for AP, IBSS and mesh create IEs internally */
+ if (!info->attrs[NL80211_ATTR_CSA_IES])
+ return -EINVAL;
+
+ /* useless if AP is not running */
+ if (!wdev->beacon_interval)
+ return -EINVAL;
+
+ params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
+
+ err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
+ if (err)
+ return err;
+
+ err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
+ info->attrs[NL80211_ATTR_CSA_IES],
+ nl80211_policy);
+ if (err)
+ return err;
+
+ err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
+ if (err)
+ return err;
+
+ if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
+ return -EINVAL;
+
+ params.counter_offset_beacon =
+ nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
+ if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
+ return -EINVAL;
+
+ /* sanity check - counters should be the same */
+ if (params.beacon_csa.tail[params.counter_offset_beacon] !=
+ params.count)
+ return -EINVAL;
+
+ if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
+ params.counter_offset_presp =
+ nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
+ if (params.counter_offset_presp >=
+ params.beacon_csa.probe_resp_len)
+ return -EINVAL;
+
+ if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
+ params.count)
+ return -EINVAL;
+ }
+
+ err = nl80211_parse_chandef(rdev, info, &params.chandef);
+ if (err)
+ return err;
+
+ if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
+ return -EINVAL;
+
+ err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
+ if (err < 0) {
+ return err;
+ } else if (err) {
+ radar_detect_width = BIT(params.chandef.width);
+ params.radar_required = true;
+ }
+
+ err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
+ params.chandef.chan,
+ CHAN_MODE_SHARED,
+ radar_detect_width);
+ if (err)
+ return err;
+
+ if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
+ params.block_tx = true;
+
+ return rdev_channel_switch(rdev, dev, &params);
+}
+
static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
u32 seq, int flags,
struct cfg80211_registered_device *rdev,
@@ -5639,6 +5788,7 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
goto nla_put_failure;
if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
+ nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
jiffies_to_msecs(jiffies - intbss->ts)))
goto nla_put_failure;
@@ -6319,6 +6469,8 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
switch (ibss.chandef.width) {
+ case NL80211_CHAN_WIDTH_5:
+ case NL80211_CHAN_WIDTH_10:
case NL80211_CHAN_WIDTH_20_NOHT:
break;
case NL80211_CHAN_WIDTH_20:
@@ -6346,6 +6498,19 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
return err;
}
+ if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+ memcpy(&ibss.ht_capa_mask,
+ nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
+ sizeof(ibss.ht_capa_mask));
+
+ if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
+ if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+ return -EINVAL;
+ memcpy(&ibss.ht_capa,
+ nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
+ sizeof(ibss.ht_capa));
+ }
+
if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
!nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
@@ -6428,19 +6593,30 @@ static struct genl_multicast_group nl80211_testmode_mcgrp = {
static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct wireless_dev *wdev =
+ __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
int err;
+ if (!rdev->ops->testmode_cmd)
+ return -EOPNOTSUPP;
+
+ if (IS_ERR(wdev)) {
+ err = PTR_ERR(wdev);
+ if (err != -EINVAL)
+ return err;
+ wdev = NULL;
+ } else if (wdev->wiphy != &rdev->wiphy) {
+ return -EINVAL;
+ }
+
if (!info->attrs[NL80211_ATTR_TESTDATA])
return -EINVAL;
- err = -EOPNOTSUPP;
- if (rdev->ops->testmode_cmd) {
- rdev->testmode_info = info;
- err = rdev_testmode_cmd(rdev,
+ rdev->testmode_info = info;
+ err = rdev_testmode_cmd(rdev, wdev,
nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
- rdev->testmode_info = NULL;
- }
+ rdev->testmode_info = NULL;
return err;
}
@@ -6505,6 +6681,9 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
NL80211_CMD_TESTMODE);
struct nlattr *tmdata;
+ if (!hdr)
+ break;
+
if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
genlmsg_cancel(skb, hdr);
break;
@@ -6949,9 +7128,8 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_REMAIN_ON_CHANNEL);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
+ if (!hdr) {
+ err = -ENOBUFS;
goto free_msg;
}
@@ -7249,9 +7427,8 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_FRAME);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
+ if (!hdr) {
+ err = -ENOBUFS;
goto free_msg;
}
}
@@ -7401,14 +7578,12 @@ static int nl80211_set_cqm_txe(struct genl_info *info,
u32 rate, u32 pkts, u32 intvl)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
- struct wireless_dev *wdev;
struct net_device *dev = info->user_ptr[1];
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
return -EINVAL;
- wdev = dev->ieee80211_ptr;
-
if (!rdev->ops->set_cqm_txe_config)
return -EOPNOTSUPP;
@@ -7423,13 +7598,15 @@ static int nl80211_set_cqm_rssi(struct genl_info *info,
s32 threshold, u32 hysteresis)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
- struct wireless_dev *wdev;
struct net_device *dev = info->user_ptr[1];
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
if (threshold > 0)
return -EINVAL;
- wdev = dev->ieee80211_ptr;
+ /* disabling - hysteresis should also be zero then */
+ if (threshold == 0)
+ hysteresis = 0;
if (!rdev->ops->set_cqm_rssi_config)
return -EOPNOTSUPP;
@@ -7448,36 +7625,33 @@ static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
int err;
cqm = info->attrs[NL80211_ATTR_CQM];
- if (!cqm) {
- err = -EINVAL;
- goto out;
- }
+ if (!cqm)
+ return -EINVAL;
err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
nl80211_attr_cqm_policy);
if (err)
- goto out;
+ return err;
if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
- s32 threshold;
- u32 hysteresis;
- threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
- hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
- err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
- } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
- attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
- attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
- u32 rate, pkts, intvl;
- rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
- pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
- intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
- err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
- } else
- err = -EINVAL;
+ s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
+ u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
-out:
- return err;
+ return nl80211_set_cqm_rssi(info, threshold, hysteresis);
+ }
+
+ if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
+ attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
+ attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
+ u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
+ u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
+ u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
+
+ return nl80211_set_cqm_txe(info, rate, pkts, intvl);
+ }
+
+ return -EINVAL;
}
static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
@@ -7593,12 +7767,11 @@ static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
if (!nl_pat)
return -ENOBUFS;
pat_len = wowlan->patterns[i].pattern_len;
- if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
- DIV_ROUND_UP(pat_len, 8),
+ if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
wowlan->patterns[i].mask) ||
- nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
- pat_len, wowlan->patterns[i].pattern) ||
- nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
+ nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
+ wowlan->patterns[i].pattern) ||
+ nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
wowlan->patterns[i].pkt_offset))
return -ENOBUFS;
nla_nest_end(msg, nl_pat);
@@ -7939,7 +8112,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
struct nlattr *pat;
int n_patterns = 0;
int rem, pat_len, mask_len, pkt_offset;
- struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
+ struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
rem)
@@ -7958,26 +8131,25 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
rem) {
- nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
- nla_data(pat), nla_len(pat), NULL);
+ nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
+ nla_len(pat), NULL);
err = -EINVAL;
- if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
- !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
+ if (!pat_tb[NL80211_PKTPAT_MASK] ||
+ !pat_tb[NL80211_PKTPAT_PATTERN])
goto error;
- pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
+ pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
mask_len = DIV_ROUND_UP(pat_len, 8);
- if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
- mask_len)
+ if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
goto error;
if (pat_len > wowlan->pattern_max_len ||
pat_len < wowlan->pattern_min_len)
goto error;
- if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
+ if (!pat_tb[NL80211_PKTPAT_OFFSET])
pkt_offset = 0;
else
pkt_offset = nla_get_u32(
- pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
+ pat_tb[NL80211_PKTPAT_OFFSET]);
if (pkt_offset > wowlan->max_pkt_offset)
goto error;
new_triggers.patterns[i].pkt_offset = pkt_offset;
@@ -7991,11 +8163,11 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
new_triggers.patterns[i].pattern =
new_triggers.patterns[i].mask + mask_len;
memcpy(new_triggers.patterns[i].mask,
- nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
+ nla_data(pat_tb[NL80211_PKTPAT_MASK]),
mask_len);
new_triggers.patterns[i].pattern_len = pat_len;
memcpy(new_triggers.patterns[i].pattern,
- nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
+ nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
pat_len);
i++;
}
@@ -8034,6 +8206,264 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
}
#endif
+static int nl80211_send_coalesce_rules(struct sk_buff *msg,
+ struct cfg80211_registered_device *rdev)
+{
+ struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
+ int i, j, pat_len;
+ struct cfg80211_coalesce_rules *rule;
+
+ if (!rdev->coalesce->n_rules)
+ return 0;
+
+ nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
+ if (!nl_rules)
+ return -ENOBUFS;
+
+ for (i = 0; i < rdev->coalesce->n_rules; i++) {
+ nl_rule = nla_nest_start(msg, i + 1);
+ if (!nl_rule)
+ return -ENOBUFS;
+
+ rule = &rdev->coalesce->rules[i];
+ if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
+ rule->delay))
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
+ rule->condition))
+ return -ENOBUFS;
+
+ nl_pats = nla_nest_start(msg,
+ NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
+ if (!nl_pats)
+ return -ENOBUFS;
+
+ for (j = 0; j < rule->n_patterns; j++) {
+ nl_pat = nla_nest_start(msg, j + 1);
+ if (!nl_pat)
+ return -ENOBUFS;
+ pat_len = rule->patterns[j].pattern_len;
+ if (nla_put(msg, NL80211_PKTPAT_MASK,
+ DIV_ROUND_UP(pat_len, 8),
+ rule->patterns[j].mask) ||
+ nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
+ rule->patterns[j].pattern) ||
+ nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
+ rule->patterns[j].pkt_offset))
+ return -ENOBUFS;
+ nla_nest_end(msg, nl_pat);
+ }
+ nla_nest_end(msg, nl_pats);
+ nla_nest_end(msg, nl_rule);
+ }
+ nla_nest_end(msg, nl_rules);
+
+ return 0;
+}
+
+static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct sk_buff *msg;
+ void *hdr;
+
+ if (!rdev->wiphy.coalesce)
+ return -EOPNOTSUPP;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
+ NL80211_CMD_GET_COALESCE);
+ if (!hdr)
+ goto nla_put_failure;
+
+ if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return genlmsg_reply(msg, info);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
+{
+ struct cfg80211_coalesce *coalesce = rdev->coalesce;
+ int i, j;
+ struct cfg80211_coalesce_rules *rule;
+
+ if (!coalesce)
+ return;
+
+ for (i = 0; i < coalesce->n_rules; i++) {
+ rule = &coalesce->rules[i];
+ for (j = 0; j < rule->n_patterns; j++)
+ kfree(rule->patterns[j].mask);
+ kfree(rule->patterns);
+ }
+ kfree(coalesce->rules);
+ kfree(coalesce);
+ rdev->coalesce = NULL;
+}
+
+static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
+ struct nlattr *rule,
+ struct cfg80211_coalesce_rules *new_rule)
+{
+ int err, i;
+ const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
+ struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
+ int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
+ struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
+
+ err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
+ nla_len(rule), nl80211_coalesce_policy);
+ if (err)
+ return err;
+
+ if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
+ new_rule->delay =
+ nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
+ if (new_rule->delay > coalesce->max_delay)
+ return -EINVAL;
+
+ if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
+ new_rule->condition =
+ nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
+ if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
+ new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
+ return -EINVAL;
+
+ if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
+ return -EINVAL;
+
+ nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
+ rem)
+ n_patterns++;
+ if (n_patterns > coalesce->n_patterns)
+ return -EINVAL;
+
+ new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
+ GFP_KERNEL);
+ if (!new_rule->patterns)
+ return -ENOMEM;
+
+ new_rule->n_patterns = n_patterns;
+ i = 0;
+
+ nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
+ rem) {
+ nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
+ nla_len(pat), NULL);
+ if (!pat_tb[NL80211_PKTPAT_MASK] ||
+ !pat_tb[NL80211_PKTPAT_PATTERN])
+ return -EINVAL;
+ pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
+ mask_len = DIV_ROUND_UP(pat_len, 8);
+ if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
+ return -EINVAL;
+ if (pat_len > coalesce->pattern_max_len ||
+ pat_len < coalesce->pattern_min_len)
+ return -EINVAL;
+
+ if (!pat_tb[NL80211_PKTPAT_OFFSET])
+ pkt_offset = 0;
+ else
+ pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
+ if (pkt_offset > coalesce->max_pkt_offset)
+ return -EINVAL;
+ new_rule->patterns[i].pkt_offset = pkt_offset;
+
+ new_rule->patterns[i].mask =
+ kmalloc(mask_len + pat_len, GFP_KERNEL);
+ if (!new_rule->patterns[i].mask)
+ return -ENOMEM;
+ new_rule->patterns[i].pattern =
+ new_rule->patterns[i].mask + mask_len;
+ memcpy(new_rule->patterns[i].mask,
+ nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
+ new_rule->patterns[i].pattern_len = pat_len;
+ memcpy(new_rule->patterns[i].pattern,
+ nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
+ i++;
+ }
+
+ return 0;
+}
+
+static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
+ struct cfg80211_coalesce new_coalesce = {};
+ struct cfg80211_coalesce *n_coalesce;
+ int err, rem_rule, n_rules = 0, i, j;
+ struct nlattr *rule;
+ struct cfg80211_coalesce_rules *tmp_rule;
+
+ if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
+ cfg80211_rdev_free_coalesce(rdev);
+ rdev->ops->set_coalesce(&rdev->wiphy, NULL);
+ return 0;
+ }
+
+ nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
+ rem_rule)
+ n_rules++;
+ if (n_rules > coalesce->n_rules)
+ return -EINVAL;
+
+ new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
+ GFP_KERNEL);
+ if (!new_coalesce.rules)
+ return -ENOMEM;
+
+ new_coalesce.n_rules = n_rules;
+ i = 0;
+
+ nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
+ rem_rule) {
+ err = nl80211_parse_coalesce_rule(rdev, rule,
+ &new_coalesce.rules[i]);
+ if (err)
+ goto error;
+
+ i++;
+ }
+
+ err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
+ if (err)
+ goto error;
+
+ n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
+ if (!n_coalesce) {
+ err = -ENOMEM;
+ goto error;
+ }
+ cfg80211_rdev_free_coalesce(rdev);
+ rdev->coalesce = n_coalesce;
+
+ return 0;
+error:
+ for (i = 0; i < new_coalesce.n_rules; i++) {
+ tmp_rule = &new_coalesce.rules[i];
+ for (j = 0; j < tmp_rule->n_patterns; j++)
+ kfree(tmp_rule->patterns[j].mask);
+ kfree(tmp_rule->patterns);
+ }
+ kfree(new_coalesce.rules);
+
+ return err;
+}
+
static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -8130,9 +8560,8 @@ static int nl80211_probe_client(struct sk_buff *skb,
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_PROBE_CLIENT);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
+ if (!hdr) {
+ err = -ENOBUFS;
goto free_msg;
}
@@ -9041,7 +9470,30 @@ static struct genl_ops nl80211_ops[] = {
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
NL80211_FLAG_NEED_RTNL,
- }
+ },
+ {
+ .cmd = NL80211_CMD_GET_COALESCE,
+ .doit = nl80211_get_coalesce,
+ .policy = nl80211_policy,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL80211_CMD_SET_COALESCE,
+ .doit = nl80211_set_coalesce,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL80211_CMD_CHANNEL_SWITCH,
+ .doit = nl80211_channel_switch,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+ NL80211_FLAG_NEED_RTNL,
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
@@ -9998,7 +10450,7 @@ EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev, u32 nlportid,
int freq, int sig_dbm,
- const u8 *buf, size_t len, gfp_t gfp)
+ const u8 *buf, size_t len, u32 flags, gfp_t gfp)
{
struct net_device *netdev = wdev->netdev;
struct sk_buff *msg;
@@ -10021,7 +10473,9 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
(sig_dbm &&
nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
- nla_put(msg, NL80211_ATTR_FRAME, len, buf))
+ nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
+ (flags &&
+ nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
goto nla_put_failure;
genlmsg_end(msg, hdr);