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Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c814
1 files changed, 415 insertions, 399 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b14b7e3cb6e..1cc47aca7f0 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -37,10 +37,10 @@ static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
/* the netlink family */
static struct genl_family nl80211_fam = {
- .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
- .name = "nl80211", /* have users key off the name instead */
- .hdrsize = 0, /* no private header */
- .version = 1, /* no particular meaning now */
+ .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
+ .name = NL80211_GENL_NAME, /* have users key off the name instead */
+ .hdrsize = 0, /* no private header */
+ .version = 1, /* no particular meaning now */
.maxattr = NL80211_ATTR_MAX,
.netnsok = true,
.pre_doit = nl80211_pre_doit,
@@ -59,7 +59,7 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
int wiphy_idx = -1;
int ifidx = -1;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
if (!have_ifidx && !have_wdev_id)
return ERR_PTR(-EINVAL);
@@ -80,7 +80,6 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
continue;
- mutex_lock(&rdev->devlist_mtx);
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (have_ifidx && wdev->netdev &&
wdev->netdev->ifindex == ifidx) {
@@ -92,7 +91,6 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
break;
}
}
- mutex_unlock(&rdev->devlist_mtx);
if (result)
break;
@@ -109,7 +107,7 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
struct cfg80211_registered_device *rdev = NULL, *tmp;
struct net_device *netdev;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
if (!attrs[NL80211_ATTR_WIPHY] &&
!attrs[NL80211_ATTR_IFINDEX] &&
@@ -128,14 +126,12 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
if (tmp) {
/* make sure wdev exists */
- mutex_lock(&tmp->devlist_mtx);
list_for_each_entry(wdev, &tmp->wdev_list, list) {
if (wdev->identifier != (u32)wdev_id)
continue;
found = true;
break;
}
- mutex_unlock(&tmp->devlist_mtx);
if (!found)
tmp = NULL;
@@ -182,19 +178,6 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
/*
* This function returns a pointer to the driver
* that the genl_info item that is passed refers to.
- * If successful, it returns non-NULL and also locks
- * the driver's mutex!
- *
- * This means that you need to call cfg80211_unlock_rdev()
- * before being allowed to acquire &cfg80211_mutex!
- *
- * This is necessary because we need to lock the global
- * mutex to get an item off the list safely, and then
- * we lock the rdev mutex so it doesn't go away under us.
- *
- * We don't want to keep cfg80211_mutex locked
- * for all the time in order to allow requests on
- * other interfaces to go through at the same time.
*
* The result of this can be a PTR_ERR and hence must
* be checked with IS_ERR() for errors.
@@ -202,20 +185,7 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
static struct cfg80211_registered_device *
cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
-
- mutex_lock(&cfg80211_mutex);
- rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
-
- /* if it is not an error we grab the lock on
- * it to assure it won't be going away while
- * we operate on it */
- if (!IS_ERR(rdev))
- mutex_lock(&rdev->mtx);
-
- mutex_unlock(&cfg80211_mutex);
-
- return rdev;
+ return __cfg80211_rdev_from_attrs(netns, info->attrs);
}
/* policy for the attributes */
@@ -378,6 +348,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_MDID] = { .type = NLA_U16 },
[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
};
/* policy for the key attributes */
@@ -455,7 +426,6 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
int err;
rtnl_lock();
- mutex_lock(&cfg80211_mutex);
if (!cb->args[0]) {
err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
@@ -484,14 +454,12 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
*rdev = wiphy_to_dev(wiphy);
*wdev = NULL;
- mutex_lock(&(*rdev)->devlist_mtx);
list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
if (tmp->identifier == cb->args[1]) {
*wdev = tmp;
break;
}
}
- mutex_unlock(&(*rdev)->devlist_mtx);
if (!*wdev) {
err = -ENODEV;
@@ -499,19 +467,14 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
}
}
- cfg80211_lock_rdev(*rdev);
-
- mutex_unlock(&cfg80211_mutex);
return 0;
out_unlock:
- mutex_unlock(&cfg80211_mutex);
rtnl_unlock();
return err;
}
static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
{
- cfg80211_unlock_rdev(rdev);
rtnl_unlock();
}
@@ -837,12 +800,9 @@ static int nl80211_key_allowed(struct wireless_dev *wdev)
case NL80211_IFTYPE_MESH_POINT:
break;
case NL80211_IFTYPE_ADHOC:
- if (!wdev->current_bss)
- return -ENOLINK;
- break;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
- if (wdev->sme_state != CFG80211_SME_CONNECTED)
+ if (!wdev->current_bss)
return -ENOLINK;
break;
default:
@@ -945,7 +905,7 @@ nla_put_failure:
static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
struct sk_buff *msg)
{
- const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
+ const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
struct nlattr *nl_tcp;
if (!tcp)
@@ -988,37 +948,37 @@ static int nl80211_send_wowlan(struct sk_buff *msg,
{
struct nlattr *nl_wowlan;
- if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
+ if (!dev->wiphy.wowlan)
return 0;
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
if (!nl_wowlan)
return -ENOBUFS;
- if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
+ if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
- ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
+ ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
return -ENOBUFS;
- if (dev->wiphy.wowlan.n_patterns) {
+ if (dev->wiphy.wowlan->n_patterns) {
struct nl80211_wowlan_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,
- .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
+ .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,
+ .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
};
if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
@@ -1151,10 +1111,16 @@ nl80211_send_mgmt_stypes(struct sk_buff *msg,
return 0;
}
+struct nl80211_dump_wiphy_state {
+ s64 filter_wiphy;
+ long start;
+ long split_start, band_start, chan_start;
+ bool split;
+};
+
static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
struct sk_buff *msg, u32 portid, u32 seq,
- int flags, bool split, long *split_start,
- long *band_start, long *chan_start)
+ int flags, struct nl80211_dump_wiphy_state *state)
{
void *hdr;
struct nlattr *nl_bands, *nl_band;
@@ -1165,19 +1131,14 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
int i;
const struct ieee80211_txrx_stypes *mgmt_stypes =
dev->wiphy.mgmt_stypes;
- long start = 0, start_chan = 0, start_band = 0;
u32 features;
hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
if (!hdr)
return -ENOBUFS;
- /* allow always using the variables */
- if (!split) {
- split_start = &start;
- band_start = &start_band;
- chan_start = &start_chan;
- }
+ if (WARN_ON(!state))
+ return -EINVAL;
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
@@ -1186,7 +1147,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
cfg80211_rdev_list_generation))
goto nla_put_failure;
- switch (*split_start) {
+ switch (state->split_start) {
case 0:
if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
dev->wiphy.retry_short) ||
@@ -1228,9 +1189,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
goto nla_put_failure;
+ if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
+ nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
+ goto nla_put_failure;
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
case 1:
if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
@@ -1274,22 +1238,23 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
}
}
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
case 2:
if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
dev->wiphy.interface_modes))
goto nla_put_failure;
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
case 3:
nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
if (!nl_bands)
goto nla_put_failure;
- for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
+ for (band = state->band_start;
+ band < IEEE80211_NUM_BANDS; band++) {
struct ieee80211_supported_band *sband;
sband = dev->wiphy.bands[band];
@@ -1301,12 +1266,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
if (!nl_band)
goto nla_put_failure;
- switch (*chan_start) {
+ switch (state->chan_start) {
case 0:
if (nl80211_send_band_rateinfo(msg, sband))
goto nla_put_failure;
- (*chan_start)++;
- if (split)
+ state->chan_start++;
+ if (state->split)
break;
default:
/* add frequencies */
@@ -1315,7 +1280,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
if (!nl_freqs)
goto nla_put_failure;
- for (i = *chan_start - 1;
+ for (i = state->chan_start - 1;
i < sband->n_channels;
i++) {
nl_freq = nla_nest_start(msg, i);
@@ -1324,26 +1289,27 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
chan = &sband->channels[i];
- if (nl80211_msg_put_channel(msg, chan,
- split))
+ if (nl80211_msg_put_channel(
+ msg, chan,
+ state->split))
goto nla_put_failure;
nla_nest_end(msg, nl_freq);
- if (split)
+ if (state->split)
break;
}
if (i < sband->n_channels)
- *chan_start = i + 2;
+ state->chan_start = i + 2;
else
- *chan_start = 0;
+ state->chan_start = 0;
nla_nest_end(msg, nl_freqs);
}
nla_nest_end(msg, nl_band);
- if (split) {
+ if (state->split) {
/* start again here */
- if (*chan_start)
+ if (state->chan_start)
band--;
break;
}
@@ -1351,14 +1317,14 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
nla_nest_end(msg, nl_bands);
if (band < IEEE80211_NUM_BANDS)
- *band_start = band + 1;
+ state->band_start = band + 1;
else
- *band_start = 0;
+ state->band_start = 0;
/* if bands & channels are done, continue outside */
- if (*band_start == 0 && *chan_start == 0)
- (*split_start)++;
- if (split)
+ if (state->band_start == 0 && state->chan_start == 0)
+ state->split_start++;
+ if (state->split)
break;
case 4:
nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
@@ -1424,7 +1390,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
}
CMD(start_p2p_device, START_P2P_DEVICE);
CMD(set_mcast_rate, SET_MCAST_RATE);
- if (split) {
+ if (state->split) {
CMD(crit_proto_start, CRIT_PROTOCOL_START);
CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
}
@@ -1448,8 +1414,8 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
}
nla_nest_end(msg, nl_cmds);
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
case 5:
if (dev->ops->remain_on_channel &&
@@ -1465,29 +1431,30 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
goto nla_put_failure;
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
case 6:
#ifdef CONFIG_PM
- if (nl80211_send_wowlan(msg, dev, split))
+ if (nl80211_send_wowlan(msg, dev, state->split))
goto nla_put_failure;
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
#else
- (*split_start)++;
+ state->split_start++;
#endif
case 7:
if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
dev->wiphy.software_iftypes))
goto nla_put_failure;
- if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
+ if (nl80211_put_iface_combinations(&dev->wiphy, msg,
+ state->split))
goto nla_put_failure;
- (*split_start)++;
- if (split)
+ state->split_start++;
+ if (state->split)
break;
case 8:
if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
@@ -1501,7 +1468,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
* dump is split, otherwise it makes it too big. Therefore
* only advertise it in that case.
*/
- if (split)
+ if (state->split)
features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
goto nla_put_failure;
@@ -1528,7 +1495,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
* case we'll continue with more data in the next round,
* but break unconditionally so unsplit data stops here.
*/
- (*split_start)++;
+ state->split_start++;
break;
case 9:
if (dev->wiphy.extended_capabilities &&
@@ -1547,7 +1514,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
goto nla_put_failure;
/* done */
- *split_start = 0;
+ state->split_start = 0;
break;
}
return genlmsg_end(msg, hdr);
@@ -1557,66 +1524,78 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
return -EMSGSIZE;
}
+static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
+ struct netlink_callback *cb,
+ struct nl80211_dump_wiphy_state *state)
+{
+ struct nlattr **tb = nl80211_fam.attrbuf;
+ int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
+ tb, nl80211_fam.maxattr, nl80211_policy);
+ /* ignore parse errors for backward compatibility */
+ if (ret)
+ return 0;
+
+ state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
+ if (tb[NL80211_ATTR_WIPHY])
+ state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
+ if (tb[NL80211_ATTR_WDEV])
+ state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
+ if (tb[NL80211_ATTR_IFINDEX]) {
+ struct net_device *netdev;
+ struct cfg80211_registered_device *rdev;
+ int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
+
+ netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
+ if (!netdev)
+ return -ENODEV;
+ if (netdev->ieee80211_ptr) {
+ rdev = wiphy_to_dev(
+ netdev->ieee80211_ptr->wiphy);
+ state->filter_wiphy = rdev->wiphy_idx;
+ }
+ dev_put(netdev);
+ }
+
+ return 0;
+}
+
static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
{
int idx = 0, ret;
- int start = cb->args[0];
+ struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
struct cfg80211_registered_device *dev;
- s64 filter_wiphy = -1;
- bool split = false;
- struct nlattr **tb;
- int res;
- /* will be zeroed in nlmsg_parse() */
- tb = kmalloc(sizeof(*tb) * (NL80211_ATTR_MAX + 1), GFP_KERNEL);
- if (!tb)
- return -ENOMEM;
-
- mutex_lock(&cfg80211_mutex);
- res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
- tb, NL80211_ATTR_MAX, nl80211_policy);
- if (res == 0) {
- split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
- if (tb[NL80211_ATTR_WIPHY])
- filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
- if (tb[NL80211_ATTR_WDEV])
- filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
- if (tb[NL80211_ATTR_IFINDEX]) {
- struct net_device *netdev;
- int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
-
- netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
- if (!netdev) {
- mutex_unlock(&cfg80211_mutex);
- kfree(tb);
- return -ENODEV;
- }
- if (netdev->ieee80211_ptr) {
- dev = wiphy_to_dev(
- netdev->ieee80211_ptr->wiphy);
- filter_wiphy = dev->wiphy_idx;
- }
- dev_put(netdev);
+ rtnl_lock();
+ if (!state) {
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state) {
+ rtnl_unlock();
+ return -ENOMEM;
+ }
+ state->filter_wiphy = -1;
+ ret = nl80211_dump_wiphy_parse(skb, cb, state);
+ if (ret) {
+ kfree(state);
+ rtnl_unlock();
+ return ret;
}
+ cb->args[0] = (long)state;
}
- kfree(tb);
list_for_each_entry(dev, &cfg80211_rdev_list, list) {
if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
continue;
- if (++idx <= start)
+ if (++idx <= state->start)
continue;
- if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
+ if (state->filter_wiphy != -1 &&
+ state->filter_wiphy != dev->wiphy_idx)
continue;
/* attempt to fit multiple wiphy data chunks into the skb */
do {
ret = nl80211_send_wiphy(dev, skb,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
- NLM_F_MULTI,
- split, &cb->args[1],
- &cb->args[2],
- &cb->args[3]);
+ NLM_F_MULTI, state);
if (ret < 0) {
/*
* If sending the wiphy data didn't fit (ENOBUFS
@@ -1635,33 +1614,40 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
!skb->len &&
cb->min_dump_alloc < 4096) {
cb->min_dump_alloc = 4096;
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
return 1;
}
idx--;
break;
}
- } while (cb->args[1] > 0);
+ } while (state->split_start > 0);
break;
}
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
- cb->args[0] = idx;
+ state->start = idx;
return skb->len;
}
+static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
+{
+ kfree((void *)cb->args[0]);
+ return 0;
+}
+
static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
{
struct sk_buff *msg;
struct cfg80211_registered_device *dev = info->user_ptr[0];
+ struct nl80211_dump_wiphy_state state = {};
msg = nlmsg_new(4096, GFP_KERNEL);
if (!msg)
return -ENOMEM;
if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
- false, NULL, NULL, NULL) < 0) {
+ &state) < 0) {
nlmsg_free(msg);
return -ENOBUFS;
}
@@ -1778,6 +1764,11 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
IEEE80211_CHAN_DISABLED))
return -EINVAL;
+ if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
+ chandef->width == NL80211_CHAN_WIDTH_10) &&
+ !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
+ return -EINVAL;
+
return 0;
}
@@ -1799,7 +1790,6 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
if (result)
return result;
- mutex_lock(&rdev->devlist_mtx);
switch (iftype) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
@@ -1823,7 +1813,6 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
default:
result = -EINVAL;
}
- mutex_unlock(&rdev->devlist_mtx);
return result;
}
@@ -1872,6 +1861,8 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
u32 frag_threshold = 0, rts_threshold = 0;
u8 coverage_class = 0;
+ ASSERT_RTNL();
+
/*
* Try to find the wiphy and netdev. Normally this
* function shouldn't need the netdev, but this is
@@ -1881,31 +1872,25 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
* also passed a netdev to set_wiphy, so that it is
* possible to let that go to the right netdev!
*/
- mutex_lock(&cfg80211_mutex);
if (info->attrs[NL80211_ATTR_IFINDEX]) {
int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
netdev = dev_get_by_index(genl_info_net(info), ifindex);
- if (netdev && netdev->ieee80211_ptr) {
+ if (netdev && netdev->ieee80211_ptr)
rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
- mutex_lock(&rdev->mtx);
- } else
+ else
netdev = NULL;
}
if (!netdev) {
rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
info->attrs);
- if (IS_ERR(rdev)) {
- mutex_unlock(&cfg80211_mutex);
+ if (IS_ERR(rdev))
return PTR_ERR(rdev);
- }
wdev = NULL;
netdev = NULL;
result = 0;
-
- mutex_lock(&rdev->mtx);
} else
wdev = netdev->ieee80211_ptr;
@@ -1918,8 +1903,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
result = cfg80211_dev_rename(
rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
- mutex_unlock(&cfg80211_mutex);
-
if (result)
goto bad_res;
@@ -2126,7 +2109,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
}
bad_res:
- mutex_unlock(&rdev->mtx);
if (netdev)
dev_put(netdev);
return result;
@@ -2224,7 +2206,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
struct cfg80211_registered_device *rdev;
struct wireless_dev *wdev;
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
continue;
@@ -2234,7 +2216,6 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
}
if_idx = 0;
- mutex_lock(&rdev->devlist_mtx);
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (if_idx < if_start) {
if_idx++;
@@ -2243,17 +2224,15 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
rdev, wdev) < 0) {
- mutex_unlock(&rdev->devlist_mtx);
goto out;
}
if_idx++;
}
- mutex_unlock(&rdev->devlist_mtx);
wp_idx++;
}
out:
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
cb->args[0] = wp_idx;
cb->args[1] = if_idx;
@@ -2286,6 +2265,7 @@ static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
[NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
+ [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
};
static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
@@ -2397,6 +2377,10 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
change = true;
}
+ if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+ return -EOPNOTSUPP;
+
if (change)
err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
else
@@ -2454,6 +2438,11 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
+
+ if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+ return -EOPNOTSUPP;
+
wdev = rdev_add_virtual_intf(rdev,
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
type, err ? NULL : &flags, &params);
@@ -2486,11 +2475,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
INIT_LIST_HEAD(&wdev->mgmt_registrations);
spin_lock_init(&wdev->mgmt_registrations_lock);
- mutex_lock(&rdev->devlist_mtx);
wdev->identifier = ++rdev->wdev_id;
list_add_rcu(&wdev->list, &rdev->wdev_list);
rdev->devlist_generation++;
- mutex_unlock(&rdev->devlist_mtx);
break;
default:
break;
@@ -2933,61 +2920,58 @@ static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
return err;
}
-static int nl80211_parse_beacon(struct genl_info *info,
+static int nl80211_parse_beacon(struct nlattr *attrs[],
struct cfg80211_beacon_data *bcn)
{
bool haveinfo = false;
- if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
- !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
- !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
- !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
+ if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
+ !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
+ !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
+ !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
return -EINVAL;
memset(bcn, 0, sizeof(*bcn));
- if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
- bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
- bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
+ if (attrs[NL80211_ATTR_BEACON_HEAD]) {
+ bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
+ bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
if (!bcn->head_len)
return -EINVAL;
haveinfo = true;
}
- if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
- bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
- bcn->tail_len =
- nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
+ if (attrs[NL80211_ATTR_BEACON_TAIL]) {
+ bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
+ bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
haveinfo = true;
}
if (!haveinfo)
return -EINVAL;
- if (info->attrs[NL80211_ATTR_IE]) {
- bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
- bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ if (attrs[NL80211_ATTR_IE]) {
+ bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
+ bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
}
- if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
+ if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
bcn->proberesp_ies =
- nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
+ nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
bcn->proberesp_ies_len =
- nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
+ nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
}
- if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
+ if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
bcn->assocresp_ies =
- nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
+ nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
bcn->assocresp_ies_len =
- nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
+ nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
}
- if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
- bcn->probe_resp =
- nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
- bcn->probe_resp_len =
- nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
+ if (attrs[NL80211_ATTR_PROBE_RESP]) {
+ bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
+ bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
}
return 0;
@@ -2999,8 +2983,6 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev;
bool ret = false;
- mutex_lock(&rdev->devlist_mtx);
-
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (wdev->iftype != NL80211_IFTYPE_AP &&
wdev->iftype != NL80211_IFTYPE_P2P_GO)
@@ -3014,8 +2996,6 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
break;
}
- mutex_unlock(&rdev->devlist_mtx);
-
return ret;
}
@@ -3070,7 +3050,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
!info->attrs[NL80211_ATTR_BEACON_HEAD])
return -EINVAL;
- err = nl80211_parse_beacon(info, &params.beacon);
+ err = nl80211_parse_beacon(info->attrs, &params.beacon);
if (err)
return err;
@@ -3177,13 +3157,10 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
params.radar_required = true;
}
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
params.chandef.chan,
CHAN_MODE_SHARED,
radar_detect_width);
- mutex_unlock(&rdev->devlist_mtx);
-
if (err)
return err;
@@ -3225,7 +3202,7 @@ static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
if (!wdev->beacon_interval)
return -EINVAL;
- err = nl80211_parse_beacon(info, &params);
+ err = nl80211_parse_beacon(info->attrs, &params);
if (err)
return err;
@@ -3383,6 +3360,32 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
return true;
}
+static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
+ int id)
+{
+ void *attr;
+ int i = 0;
+
+ if (!mask)
+ return true;
+
+ attr = nla_nest_start(msg, id);
+ if (!attr)
+ return false;
+
+ for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
+ if (!(mask & BIT(i)))
+ continue;
+
+ if (nla_put_u8(msg, i, signal[i]))
+ return false;
+ }
+
+ nla_nest_end(msg, attr);
+
+ return true;
+}
+
static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
int flags,
struct cfg80211_registered_device *rdev,
@@ -3454,6 +3457,18 @@ static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
default:
break;
}
+ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
+ if (!nl80211_put_signal(msg, sinfo->chains,
+ sinfo->chain_signal,
+ NL80211_STA_INFO_CHAIN_SIGNAL))
+ goto nla_put_failure;
+ }
+ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
+ if (!nl80211_put_signal(msg, sinfo->chains,
+ sinfo->chain_signal_avg,
+ NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
+ goto nla_put_failure;
+ }
if (sinfo->filled & STATION_INFO_TX_BITRATE) {
if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
NL80211_STA_INFO_TX_BITRATE))
@@ -3841,6 +3856,8 @@ static int nl80211_set_station_tdls(struct genl_info *info,
struct station_parameters *params)
{
/* Dummy STA entry gets updated once the peer capabilities are known */
+ if (info->attrs[NL80211_ATTR_PEER_AID])
+ params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
params->ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
@@ -3981,7 +3998,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
return -EINVAL;
- if (!info->attrs[NL80211_ATTR_STA_AID])
+ if (!info->attrs[NL80211_ATTR_STA_AID] &&
+ !info->attrs[NL80211_ATTR_PEER_AID])
return -EINVAL;
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
@@ -3992,7 +4010,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
params.listen_interval =
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
- params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+ if (info->attrs[NL80211_ATTR_PEER_AID])
+ params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
+ else
+ params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
if (!params.aid || params.aid > IEEE80211_MAX_AID)
return -EINVAL;
@@ -4044,7 +4065,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
/* TDLS peers cannot be added */
- if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+ if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
+ info->attrs[NL80211_ATTR_PEER_AID])
return -EINVAL;
/* but don't bother the driver with it */
params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
@@ -4070,7 +4092,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
return -EINVAL;
/* TDLS peers cannot be added */
- if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+ if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
+ info->attrs[NL80211_ATTR_PEER_AID])
return -EINVAL;
break;
case NL80211_IFTYPE_STATION:
@@ -4592,7 +4615,9 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
cur_params.power_mode) ||
nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
- cur_params.dot11MeshAwakeWindowDuration))
+ cur_params.dot11MeshAwakeWindowDuration) ||
+ nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
+ cur_params.plink_timeout))
goto nla_put_failure;
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
@@ -4633,6 +4658,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A
[NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
[NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
[NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
+ [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
};
static const struct nla_policy
@@ -4641,6 +4667,7 @@ static const struct nla_policy
[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
+ [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
@@ -4769,6 +4796,9 @@ do { \
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
0, 65535, mask,
NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
+ mask, NL80211_MESHCONF_PLINK_TIMEOUT,
+ nla_get_u32);
if (mask_out)
*mask_out = mask;
@@ -4826,6 +4856,13 @@ static int nl80211_parse_mesh_setup(struct genl_info *info,
if (setup->is_secure)
setup->user_mpm = true;
+ if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
+ if (!setup->user_mpm)
+ return -EINVAL;
+ setup->auth_id =
+ nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
+ }
+
return 0;
}
@@ -4868,18 +4905,13 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
void *hdr = NULL;
struct nlattr *nl_reg_rules;
unsigned int i;
- int err = -EINVAL;
-
- mutex_lock(&cfg80211_mutex);
if (!cfg80211_regdomain)
- goto out;
+ return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOBUFS;
- goto out;
- }
+ if (!msg)
+ return -ENOBUFS;
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_GET_REG);
@@ -4938,8 +4970,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
nla_nest_end(msg, nl_reg_rules);
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+ return genlmsg_reply(msg, info);
nla_put_failure_rcu:
rcu_read_unlock();
@@ -4947,10 +4978,7 @@ nla_put_failure:
genlmsg_cancel(msg, hdr);
put_failure:
nlmsg_free(msg);
- err = -EMSGSIZE;
-out:
- mutex_unlock(&cfg80211_mutex);
- return err;
+ return -EMSGSIZE;
}
static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
@@ -5016,12 +5044,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
}
}
- mutex_lock(&cfg80211_mutex);
-
r = set_regdom(rd);
/* set_regdom took ownership */
rd = NULL;
- mutex_unlock(&cfg80211_mutex);
bad_reg:
kfree(rd);
@@ -5071,7 +5096,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->scan)
return -EOPNOTSUPP;
- mutex_lock(&rdev->sched_scan_mtx);
if (rdev->scan_req) {
err = -EBUSY;
goto unlock;
@@ -5257,7 +5281,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
}
unlock:
- mutex_unlock(&rdev->sched_scan_mtx);
return err;
}
@@ -5329,8 +5352,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
if (ie_len > wiphy->max_sched_scan_ie_len)
return -EINVAL;
- mutex_lock(&rdev->sched_scan_mtx);
-
if (rdev->sched_scan_req) {
err = -EINPROGRESS;
goto out;
@@ -5498,7 +5519,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
out_free:
kfree(request);
out:
- mutex_unlock(&rdev->sched_scan_mtx);
return err;
}
@@ -5506,17 +5526,12 @@ static int nl80211_stop_sched_scan(struct sk_buff *skb,
struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
- int err;
if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
!rdev->ops->sched_scan_stop)
return -EOPNOTSUPP;
- mutex_lock(&rdev->sched_scan_mtx);
- err = __cfg80211_stop_sched_scan(rdev, false);
- mutex_unlock(&rdev->sched_scan_mtx);
-
- return err;
+ return __cfg80211_stop_sched_scan(rdev, false);
}
static int nl80211_start_radar_detection(struct sk_buff *skb,
@@ -5548,12 +5563,11 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
if (!rdev->ops->start_radar_detection)
return -EOPNOTSUPP;
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
chandef.chan, CHAN_MODE_SHARED,
BIT(chandef.width));
if (err)
- goto err_locked;
+ return err;
err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
if (!err) {
@@ -5561,9 +5575,6 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
wdev->cac_started = true;
wdev->cac_start_time = jiffies;
}
-err_locked:
- mutex_unlock(&rdev->devlist_mtx);
-
return err;
}
@@ -5946,10 +5957,13 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
if (local_state_change)
return 0;
- return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
- ssid, ssid_len, ie, ie_len,
- key.p.key, key.p.key_len, key.idx,
- sae_data, sae_data_len);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
+ ssid, ssid_len, ie, ie_len,
+ key.p.key, key.p.key_len, key.idx,
+ sae_data, sae_data_len);
+ wdev_unlock(dev->ieee80211_ptr);
+ return err;
}
static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
@@ -6116,9 +6130,12 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
}
err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
- if (!err)
+ if (!err) {
+ wdev_lock(dev->ieee80211_ptr);
err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
ssid, ssid_len, &req);
+ wdev_unlock(dev->ieee80211_ptr);
+ }
return err;
}
@@ -6128,7 +6145,7 @@ static int nl80211_deauthenticate(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];
const u8 *ie = NULL, *bssid;
- int ie_len = 0;
+ int ie_len = 0, err;
u16 reason_code;
bool local_state_change;
@@ -6163,8 +6180,11 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
- return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
- local_state_change);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
+ local_state_change);
+ wdev_unlock(dev->ieee80211_ptr);
+ return err;
}
static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
@@ -6172,7 +6192,7 @@ static int nl80211_disassociate(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];
const u8 *ie = NULL, *bssid;
- int ie_len = 0;
+ int ie_len = 0, err;
u16 reason_code;
bool local_state_change;
@@ -6207,8 +6227,11 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
- return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
- local_state_change);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
+ local_state_change);
+ wdev_unlock(dev->ieee80211_ptr);
+ return err;
}
static bool
@@ -6295,11 +6318,16 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
return -EINVAL;
- if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
- return -EINVAL;
- if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
- !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
+ switch (ibss.chandef.width) {
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ break;
+ case NL80211_CHAN_WIDTH_20:
+ case NL80211_CHAN_WIDTH_40:
+ if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
+ break;
+ default:
return -EINVAL;
+ }
ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
@@ -6426,6 +6454,8 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
void *data = NULL;
int data_len = 0;
+ rtnl_lock();
+
if (cb->args[0]) {
/*
* 0 is a valid index, but not valid for args[0],
@@ -6437,18 +6467,16 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
nl80211_fam.attrbuf, nl80211_fam.maxattr,
nl80211_policy);
if (err)
- return err;
+ goto out_err;
- mutex_lock(&cfg80211_mutex);
rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
nl80211_fam.attrbuf);
if (IS_ERR(rdev)) {
- mutex_unlock(&cfg80211_mutex);
- return PTR_ERR(rdev);
+ err = PTR_ERR(rdev);
+ goto out_err;
}
phy_idx = rdev->wiphy_idx;
rdev = NULL;
- mutex_unlock(&cfg80211_mutex);
if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
cb->args[1] =
@@ -6460,14 +6488,11 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
data_len = nla_len((void *)cb->args[1]);
}
- mutex_lock(&cfg80211_mutex);
rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
if (!rdev) {
- mutex_unlock(&cfg80211_mutex);
- return -ENOENT;
+ err = -ENOENT;
+ goto out_err;
}
- cfg80211_lock_rdev(rdev);
- mutex_unlock(&cfg80211_mutex);
if (!rdev->ops->testmode_dump) {
err = -EOPNOTSUPP;
@@ -6508,7 +6533,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
/* see above */
cb->args[0] = phy_idx + 1;
out_err:
- cfg80211_unlock_rdev(rdev);
+ rtnl_unlock();
return err;
}
@@ -6716,7 +6741,9 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
sizeof(connect.vht_capa));
}
- err = cfg80211_connect(rdev, dev, &connect, connkeys);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
+ wdev_unlock(dev->ieee80211_ptr);
if (err)
kfree(connkeys);
return err;
@@ -6727,6 +6754,7 @@ static int nl80211_disconnect(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];
u16 reason;
+ int ret;
if (!info->attrs[NL80211_ATTR_REASON_CODE])
reason = WLAN_REASON_DEAUTH_LEAVING;
@@ -6740,7 +6768,10 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
- return cfg80211_disconnect(rdev, dev, reason, true);
+ wdev_lock(dev->ieee80211_ptr);
+ ret = cfg80211_disconnect(rdev, dev, reason, true);
+ wdev_unlock(dev->ieee80211_ptr);
+ return ret;
}
static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
@@ -7159,6 +7190,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
return -EOPNOTSUPP;
switch (wdev->iftype) {
+ case NL80211_IFTYPE_P2P_DEVICE:
+ if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
+ return -EINVAL;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_P2P_CLIENT:
@@ -7166,7 +7200,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_P2P_GO:
- case NL80211_IFTYPE_P2P_DEVICE:
break;
default:
return -EOPNOTSUPP;
@@ -7194,9 +7227,18 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
- err = nl80211_parse_chandef(rdev, info, &chandef);
- if (err)
- return err;
+ /* get the channel if any has been specified, otherwise pass NULL to
+ * the driver. The latter will use the current one
+ */
+ chandef.chan = NULL;
+ if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+ err = nl80211_parse_chandef(rdev, info, &chandef);
+ if (err)
+ return err;
+ }
+
+ if (!chandef.chan && offchan)
+ return -EINVAL;
if (!dont_wait_for_ack) {
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
@@ -7501,6 +7543,23 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
setup.chandef.chan = NULL;
}
+ if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
+ u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+ int n_rates =
+ nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+ struct ieee80211_supported_band *sband;
+
+ if (!setup.chandef.chan)
+ return -EINVAL;
+
+ sband = rdev->wiphy.bands[setup.chandef.chan->band];
+
+ err = ieee80211_get_ratemask(sband, rates, n_rates,
+ &setup.basic_rates);
+ if (err)
+ return err;
+ }
+
return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
}
@@ -7516,28 +7575,29 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
struct cfg80211_registered_device *rdev)
{
+ struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
struct nlattr *nl_pats, *nl_pat;
int i, pat_len;
- if (!rdev->wowlan->n_patterns)
+ if (!wowlan->n_patterns)
return 0;
nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
if (!nl_pats)
return -ENOBUFS;
- for (i = 0; i < rdev->wowlan->n_patterns; i++) {
+ for (i = 0; i < wowlan->n_patterns; i++) {
nl_pat = nla_nest_start(msg, i + 1);
if (!nl_pat)
return -ENOBUFS;
- pat_len = rdev->wowlan->patterns[i].pattern_len;
+ pat_len = wowlan->patterns[i].pattern_len;
if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
DIV_ROUND_UP(pat_len, 8),
- rdev->wowlan->patterns[i].mask) ||
+ wowlan->patterns[i].mask) ||
nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
- pat_len, rdev->wowlan->patterns[i].pattern) ||
+ pat_len, wowlan->patterns[i].pattern) ||
nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
- rdev->wowlan->patterns[i].pkt_offset))
+ wowlan->patterns[i].pkt_offset))
return -ENOBUFS;
nla_nest_end(msg, nl_pat);
}
@@ -7596,16 +7656,15 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
void *hdr;
u32 size = NLMSG_DEFAULT_SIZE;
- if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
- !rdev->wiphy.wowlan.tcp)
+ if (!rdev->wiphy.wowlan)
return -EOPNOTSUPP;
- if (rdev->wowlan && rdev->wowlan->tcp) {
+ if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
/* adjust size to have room for all the data */
- size += rdev->wowlan->tcp->tokens_size +
- rdev->wowlan->tcp->payload_len +
- rdev->wowlan->tcp->wake_len +
- rdev->wowlan->tcp->wake_len / 8;
+ size += rdev->wiphy.wowlan_config->tcp->tokens_size +
+ rdev->wiphy.wowlan_config->tcp->payload_len +
+ rdev->wiphy.wowlan_config->tcp->wake_len +
+ rdev->wiphy.wowlan_config->tcp->wake_len / 8;
}
msg = nlmsg_new(size, GFP_KERNEL);
@@ -7617,33 +7676,34 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
if (!hdr)
goto nla_put_failure;
- if (rdev->wowlan) {
+ if (rdev->wiphy.wowlan_config) {
struct nlattr *nl_wowlan;
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
if (!nl_wowlan)
goto nla_put_failure;
- if ((rdev->wowlan->any &&
+ if ((rdev->wiphy.wowlan_config->any &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
- (rdev->wowlan->disconnect &&
+ (rdev->wiphy.wowlan_config->disconnect &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
- (rdev->wowlan->magic_pkt &&
+ (rdev->wiphy.wowlan_config->magic_pkt &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
- (rdev->wowlan->gtk_rekey_failure &&
+ (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
- (rdev->wowlan->eap_identity_req &&
+ (rdev->wiphy.wowlan_config->eap_identity_req &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
- (rdev->wowlan->four_way_handshake &&
+ (rdev->wiphy.wowlan_config->four_way_handshake &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
- (rdev->wowlan->rfkill_release &&
+ (rdev->wiphy.wowlan_config->rfkill_release &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
goto nla_put_failure;
if (nl80211_send_wowlan_patterns(msg, rdev))
goto nla_put_failure;
- if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
+ if (nl80211_send_wowlan_tcp(msg,
+ rdev->wiphy.wowlan_config->tcp))
goto nla_put_failure;
nla_nest_end(msg, nl_wowlan);
@@ -7669,7 +7729,7 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
int err, port;
- if (!rdev->wiphy.wowlan.tcp)
+ if (!rdev->wiphy.wowlan->tcp)
return -EINVAL;
err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
@@ -7689,16 +7749,16 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
return -EINVAL;
data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
- if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
+ if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
return -EINVAL;
if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
- rdev->wiphy.wowlan.tcp->data_interval_max ||
+ rdev->wiphy.wowlan->tcp->data_interval_max ||
nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
return -EINVAL;
wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
- if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
+ if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
return -EINVAL;
wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
@@ -7713,13 +7773,13 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
if (!tok->len || tokens_size % tok->len)
return -EINVAL;
- if (!rdev->wiphy.wowlan.tcp->tok)
+ if (!rdev->wiphy.wowlan->tcp->tok)
return -EINVAL;
- if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
+ if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
return -EINVAL;
- if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
+ if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
return -EINVAL;
- if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
+ if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
return -EINVAL;
if (tok->offset + tok->len > data_size)
return -EINVAL;
@@ -7727,7 +7787,7 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
- if (!rdev->wiphy.wowlan.tcp->seq)
+ if (!rdev->wiphy.wowlan->tcp->seq)
return -EINVAL;
if (seq->len == 0 || seq->len > 4)
return -EINVAL;
@@ -7808,17 +7868,16 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
struct cfg80211_wowlan new_triggers = {};
struct cfg80211_wowlan *ntrig;
- struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
+ const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
int err, i;
- bool prev_enabled = rdev->wowlan;
+ bool prev_enabled = rdev->wiphy.wowlan_config;
- if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
- !rdev->wiphy.wowlan.tcp)
+ if (!wowlan)
return -EOPNOTSUPP;
if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
cfg80211_rdev_free_wowlan(rdev);
- rdev->wowlan = NULL;
+ rdev->wiphy.wowlan_config = NULL;
goto set_wakeup;
}
@@ -7954,11 +8013,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
goto error;
}
cfg80211_rdev_free_wowlan(rdev);
- rdev->wowlan = ntrig;
+ rdev->wiphy.wowlan_config = ntrig;
set_wakeup:
- if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
- rdev_set_wakeup(rdev, rdev->wowlan);
+ if (rdev->ops->set_wakeup &&
+ prev_enabled != !!rdev->wiphy.wowlan_config)
+ rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
return 0;
error:
@@ -8143,9 +8203,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
if (wdev->p2p_started)
return 0;
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_add_interface(rdev, wdev->iftype);
- mutex_unlock(&rdev->devlist_mtx);
if (err)
return err;
@@ -8154,9 +8212,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
return err;
wdev->p2p_started = true;
- mutex_lock(&rdev->devlist_mtx);
rdev->opencount++;
- mutex_unlock(&rdev->devlist_mtx);
return 0;
}
@@ -8172,11 +8228,7 @@ static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->stop_p2p_device)
return -EOPNOTSUPP;
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
cfg80211_stop_p2p_device(rdev, wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
return 0;
}
@@ -8319,11 +8371,11 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
info->user_ptr[0] = rdev;
} else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
- mutex_lock(&cfg80211_mutex);
+ ASSERT_RTNL();
+
wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
info->attrs);
if (IS_ERR(wdev)) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return PTR_ERR(wdev);
@@ -8334,7 +8386,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
if (!dev) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return -EINVAL;
@@ -8348,7 +8399,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
if (dev) {
if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
!netif_running(dev)) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return -ENETDOWN;
@@ -8357,17 +8407,12 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
dev_hold(dev);
} else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
if (!wdev->p2p_started) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return -ENETDOWN;
}
}
- cfg80211_lock_rdev(rdev);
-
- mutex_unlock(&cfg80211_mutex);
-
info->user_ptr[0] = rdev;
}
@@ -8377,8 +8422,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
struct genl_info *info)
{
- if (info->user_ptr[0])
- cfg80211_unlock_rdev(info->user_ptr[0]);
if (info->user_ptr[1]) {
if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
struct wireless_dev *wdev = info->user_ptr[1];
@@ -8398,9 +8441,11 @@ static struct genl_ops nl80211_ops[] = {
.cmd = NL80211_CMD_GET_WIPHY,
.doit = nl80211_get_wiphy,
.dumpit = nl80211_dump_wiphy,
+ .done = nl80211_dump_wiphy_done,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
- .internal_flags = NL80211_FLAG_NEED_WIPHY,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_WIPHY,
@@ -8415,7 +8460,8 @@ static struct genl_ops nl80211_ops[] = {
.dumpit = nl80211_dump_interface,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
- .internal_flags = NL80211_FLAG_NEED_WDEV,
+ .internal_flags = NL80211_FLAG_NEED_WDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_INTERFACE,
@@ -8574,6 +8620,7 @@ static struct genl_ops nl80211_ops[] = {
.cmd = NL80211_CMD_GET_REG,
.doit = nl80211_get_reg,
.policy = nl80211_policy,
+ .internal_flags = NL80211_FLAG_NEED_RTNL,
/* can be retrieved by unprivileged users */
},
{
@@ -8581,6 +8628,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_set_reg,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_REQ_SET_REG,
@@ -9014,13 +9062,13 @@ static struct genl_multicast_group nl80211_regulatory_mcgrp = {
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
{
struct sk_buff *msg;
+ struct nl80211_dump_wiphy_state state = {};
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return;
- if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
- false, NULL, NULL, NULL) < 0) {
+ if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
nlmsg_free(msg);
return;
}
@@ -9036,8 +9084,6 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
struct nlattr *nest;
int i;
- lockdep_assert_held(&rdev->sched_scan_mtx);
-
if (WARN_ON(!req))
return 0;
@@ -9344,31 +9390,27 @@ void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
NL80211_CMD_DISASSOCIATE, gfp);
}
-void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
- size_t len)
+void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
+ size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+ const struct ieee80211_mgmt *mgmt = (void *)buf;
+ u32 cmd;
- trace_cfg80211_send_unprot_deauth(dev);
- nl80211_send_mlme_event(rdev, dev, buf, len,
- NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
-}
-EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
+ if (WARN_ON(len < 2))
+ return;
-void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
- size_t len)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct wiphy *wiphy = wdev->wiphy;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+ if (ieee80211_is_deauth(mgmt->frame_control))
+ cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
+ else
+ cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
- trace_cfg80211_send_unprot_disassoc(dev);
- nl80211_send_mlme_event(rdev, dev, buf, len,
- NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
+ trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
+ nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
}
-EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
+EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
struct net_device *netdev, int cmd,
@@ -9879,7 +9921,6 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct sk_buff *msg;
void *hdr;
- int err;
u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
if (!nlportid)
@@ -9900,12 +9941,7 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
goto nla_put_failure;
- err = genlmsg_end(msg, hdr);
- if (err < 0) {
- nlmsg_free(msg);
- return true;
- }
-
+ genlmsg_end(msg, hdr);
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
return true;
@@ -10348,10 +10384,7 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev,
if (nl80211_send_chandef(msg, chandef))
goto nla_put_failure;
- if (genlmsg_end(msg, hdr) < 0) {
- nlmsg_free(msg);
- return;
- }
+ genlmsg_end(msg, hdr);
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
nl80211_mlme_mcgrp.id, gfp);
@@ -10417,7 +10450,6 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct sk_buff *msg;
void *hdr;
- int err;
trace_cfg80211_probe_status(dev, addr, cookie, acked);
@@ -10439,11 +10471,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
(acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
goto nla_put_failure;
- err = genlmsg_end(msg, hdr);
- if (err < 0) {
- nlmsg_free(msg);
- return;
- }
+ genlmsg_end(msg, hdr);
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
nl80211_mlme_mcgrp.id, gfp);
@@ -10509,7 +10537,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct sk_buff *msg;
void *hdr;
- int err, size = 200;
+ int size = 200;
trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
@@ -10595,9 +10623,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
nla_nest_end(msg, reasons);
}
- err = genlmsg_end(msg, hdr);
- if (err < 0)
- goto free_msg;
+ genlmsg_end(msg, hdr);
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
nl80211_mlme_mcgrp.id, gfp);
@@ -10617,7 +10643,6 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct sk_buff *msg;
void *hdr;
- int err;
trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
reason_code);
@@ -10640,11 +10665,7 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
goto nla_put_failure;
- err = genlmsg_end(msg, hdr);
- if (err < 0) {
- nlmsg_free(msg);
- return;
- }
+ genlmsg_end(msg, hdr);
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
nl80211_mlme_mcgrp.id, gfp);
@@ -10702,7 +10723,6 @@ void cfg80211_ft_event(struct net_device *netdev,
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
struct sk_buff *msg;
void *hdr;
- int err;
trace_cfg80211_ft_event(wiphy, netdev, ft_event);
@@ -10728,11 +10748,7 @@ void cfg80211_ft_event(struct net_device *netdev,
nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
ft_event->ric_ies);
- err = genlmsg_end(msg, hdr);
- if (err < 0) {
- nlmsg_free(msg);
- return;
- }
+ genlmsg_end(msg, hdr);
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
nl80211_mlme_mcgrp.id, GFP_KERNEL);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-27 21:11:29 +0000