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Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c923
1 files changed, 742 insertions, 181 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2456e4ee445e..24168560ebae 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1,7 +1,7 @@
/*
* This is the new netlink-based wireless configuration interface.
*
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/if.h>
@@ -57,10 +57,14 @@ static int get_drv_dev_by_info_ifindex(struct nlattr **attrs,
static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
- .len = BUS_ID_SIZE-1 },
+ .len = 20-1 },
[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
+ [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
+ [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
+ [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
+ [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
@@ -73,6 +77,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
[NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
+ [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
[NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
[NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
@@ -116,8 +121,45 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
.len = IEEE80211_MAX_SSID_LEN },
[NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
[NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
+ [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
+ [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
+ [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
+ [NL80211_ATTR_STA_FLAGS2] = {
+ .len = sizeof(struct nl80211_sta_flag_update),
+ },
+ [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
};
+/* IE validation */
+static bool is_valid_ie_attr(const struct nlattr *attr)
+{
+ const u8 *pos;
+ int len;
+
+ if (!attr)
+ return true;
+
+ pos = nla_data(attr);
+ len = nla_len(attr);
+
+ while (len) {
+ u8 elemlen;
+
+ if (len < 2)
+ return false;
+ len -= 2;
+
+ elemlen = pos[1];
+ if (elemlen > len)
+ return false;
+
+ len -= elemlen;
+ pos += 2 + elemlen;
+ }
+
+ return true;
+}
+
/* message building helper */
static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
int flags, u8 cmd)
@@ -126,6 +168,30 @@ static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
}
+static int nl80211_msg_put_channel(struct sk_buff *msg,
+ struct ieee80211_channel *chan)
+{
+ NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
+ chan->center_freq);
+
+ if (chan->flags & IEEE80211_CHAN_DISABLED)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
+ if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
+ if (chan->flags & IEEE80211_CHAN_NO_IBSS)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
+ if (chan->flags & IEEE80211_CHAN_RADAR)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
+
+ NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
+ DBM_TO_MBM(chan->max_power));
+
+ return 0;
+
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
/* netlink command implementations */
static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
@@ -149,8 +215,24 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+
+ NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
+ dev->wiphy.retry_short);
+ NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
+ dev->wiphy.retry_long);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
+ dev->wiphy.frag_threshold);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
+ dev->wiphy.rts_threshold);
+
NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
dev->wiphy.max_scan_ssids);
+ NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
+ dev->wiphy.max_scan_ie_len);
+
+ NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
+ sizeof(u32) * dev->wiphy.n_cipher_suites,
+ dev->wiphy.cipher_suites);
nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
if (!nl_modes)
@@ -202,20 +284,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
goto nla_put_failure;
chan = &dev->wiphy.bands[band]->channels[i];
- NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
- chan->center_freq);
-
- if (chan->flags & IEEE80211_CHAN_DISABLED)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
- if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
- if (chan->flags & IEEE80211_CHAN_NO_IBSS)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
- if (chan->flags & IEEE80211_CHAN_RADAR)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
- NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
- DBM_TO_MBM(chan->max_power));
+ if (nl80211_msg_put_channel(msg, chan))
+ goto nla_put_failure;
nla_nest_end(msg, nl_freq);
}
@@ -273,6 +344,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
CMD(assoc, ASSOCIATE);
CMD(deauth, DEAUTHENTICATE);
CMD(disassoc, DISASSOCIATE);
+ CMD(join_ibss, JOIN_IBSS);
#undef CMD
nla_nest_end(msg, nl_cmds);
@@ -317,7 +389,7 @@ static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
if (IS_ERR(dev))
return PTR_ERR(dev);
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
goto out_err;
@@ -365,6 +437,9 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_registered_device *rdev;
int result = 0, rem_txq_params = 0;
struct nlattr *nl_txq_params;
+ u32 changed;
+ u8 retry_short = 0, retry_long = 0;
+ u32 frag_threshold = 0, rts_threshold = 0;
rtnl_lock();
@@ -418,7 +493,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
struct ieee80211_channel *chan;
struct ieee80211_sta_ht_cap *ht_cap;
- u32 freq, sec_freq;
+ u32 freq;
if (!rdev->ops->set_channel) {
result = -EOPNOTSUPP;
@@ -444,33 +519,28 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
goto bad_res;
- if (channel_type == NL80211_CHAN_HT40MINUS)
- sec_freq = freq - 20;
- else if (channel_type == NL80211_CHAN_HT40PLUS)
- sec_freq = freq + 20;
- else
- sec_freq = 0;
-
- ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
-
- /* no HT capabilities */
- if (channel_type != NL80211_CHAN_NO_HT &&
- !ht_cap->ht_supported)
+ if (channel_type == NL80211_CHAN_HT40MINUS &&
+ (chan->flags & IEEE80211_CHAN_NO_HT40MINUS))
+ goto bad_res;
+ else if (channel_type == NL80211_CHAN_HT40PLUS &&
+ (chan->flags & IEEE80211_CHAN_NO_HT40PLUS))
goto bad_res;
- if (sec_freq) {
- struct ieee80211_channel *schan;
+ /*
+ * At this point we know if that if HT40 was requested
+ * we are allowed to use it and the extension channel
+ * exists.
+ */
- /* no 40 MHz capabilities */
+ ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
+
+ /* no HT capabilities or intolerant */
+ if (channel_type != NL80211_CHAN_NO_HT) {
+ if (!ht_cap->ht_supported)
+ goto bad_res;
if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
(ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
goto bad_res;
-
- schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
-
- /* Secondary channel not allowed */
- if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
- goto bad_res;
}
result = rdev->ops->set_channel(&rdev->wiphy, chan,
@@ -479,6 +549,84 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
goto bad_res;
}
+ changed = 0;
+
+ if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
+ retry_short = nla_get_u8(
+ info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
+ if (retry_short == 0) {
+ result = -EINVAL;
+ goto bad_res;
+ }
+ changed |= WIPHY_PARAM_RETRY_SHORT;
+ }
+
+ if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
+ retry_long = nla_get_u8(
+ info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
+ if (retry_long == 0) {
+ result = -EINVAL;
+ goto bad_res;
+ }
+ changed |= WIPHY_PARAM_RETRY_LONG;
+ }
+
+ if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
+ frag_threshold = nla_get_u32(
+ info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
+ if (frag_threshold < 256) {
+ result = -EINVAL;
+ goto bad_res;
+ }
+ if (frag_threshold != (u32) -1) {
+ /*
+ * Fragments (apart from the last one) are required to
+ * have even length. Make the fragmentation code
+ * simpler by stripping LSB should someone try to use
+ * odd threshold value.
+ */
+ frag_threshold &= ~0x1;
+ }
+ changed |= WIPHY_PARAM_FRAG_THRESHOLD;
+ }
+
+ if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
+ rts_threshold = nla_get_u32(
+ info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
+ changed |= WIPHY_PARAM_RTS_THRESHOLD;
+ }
+
+ if (changed) {
+ u8 old_retry_short, old_retry_long;
+ u32 old_frag_threshold, old_rts_threshold;
+
+ if (!rdev->ops->set_wiphy_params) {
+ result = -EOPNOTSUPP;
+ goto bad_res;
+ }
+
+ old_retry_short = rdev->wiphy.retry_short;
+ old_retry_long = rdev->wiphy.retry_long;
+ old_frag_threshold = rdev->wiphy.frag_threshold;
+ old_rts_threshold = rdev->wiphy.rts_threshold;
+
+ if (changed & WIPHY_PARAM_RETRY_SHORT)
+ rdev->wiphy.retry_short = retry_short;
+ if (changed & WIPHY_PARAM_RETRY_LONG)
+ rdev->wiphy.retry_long = retry_long;
+ if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
+ rdev->wiphy.frag_threshold = frag_threshold;
+ if (changed & WIPHY_PARAM_RTS_THRESHOLD)
+ rdev->wiphy.rts_threshold = rts_threshold;
+
+ result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
+ if (result) {
+ rdev->wiphy.retry_short = old_retry_short;
+ rdev->wiphy.retry_long = old_retry_long;
+ rdev->wiphy.frag_threshold = old_frag_threshold;
+ rdev->wiphy.rts_threshold = old_rts_threshold;
+ }
+ }
bad_res:
mutex_unlock(&rdev->mtx);
@@ -489,6 +637,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ struct cfg80211_registered_device *rdev,
struct net_device *dev)
{
void *hdr;
@@ -498,6 +647,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
return -1;
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
return genlmsg_end(msg, hdr);
@@ -532,7 +682,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
}
if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
- wdev->netdev) < 0) {
+ dev, wdev->netdev) < 0) {
mutex_unlock(&dev->devlist_mtx);
goto out;
}
@@ -562,11 +712,12 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
if (err)
return err;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
goto out_err;
- if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
+ if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
+ dev, netdev) < 0)
goto out_free;
dev_put(netdev);
@@ -616,7 +767,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_registered_device *drv;
struct vif_params params;
int err, ifindex;
- enum nl80211_iftype type;
+ enum nl80211_iftype otype, ntype;
struct net_device *dev;
u32 _flags, *flags = NULL;
bool change = false;
@@ -630,30 +781,27 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
goto unlock_rtnl;
ifindex = dev->ifindex;
- type = dev->ieee80211_ptr->iftype;
+ otype = ntype = dev->ieee80211_ptr->iftype;
dev_put(dev);
if (info->attrs[NL80211_ATTR_IFTYPE]) {
- enum nl80211_iftype ntype;
-
ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type != ntype)
+ if (otype != ntype)
change = true;
- type = ntype;
- if (type > NL80211_IFTYPE_MAX) {
+ if (ntype > NL80211_IFTYPE_MAX) {
err = -EINVAL;
goto unlock;
}
}
if (!drv->ops->change_virtual_intf ||
- !(drv->wiphy.interface_modes & (1 << type))) {
+ !(drv->wiphy.interface_modes & (1 << ntype))) {
err = -EOPNOTSUPP;
goto unlock;
}
if (info->attrs[NL80211_ATTR_MESH_ID]) {
- if (type != NL80211_IFTYPE_MESH_POINT) {
+ if (ntype != NL80211_IFTYPE_MESH_POINT) {
err = -EINVAL;
goto unlock;
}
@@ -663,7 +811,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
}
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
- if (type != NL80211_IFTYPE_MONITOR) {
+ if (ntype != NL80211_IFTYPE_MONITOR) {
err = -EINVAL;
goto unlock;
}
@@ -678,12 +826,17 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
if (change)
err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
- type, flags, &params);
+ ntype, flags, &params);
else
err = 0;
dev = __dev_get_by_index(&init_net, ifindex);
- WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
+ WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != ntype));
+
+ if (dev && !err && (ntype != otype)) {
+ if (otype == NL80211_IFTYPE_ADHOC)
+ cfg80211_clear_ibss(dev, false);
+ }
unlock:
cfg80211_put_dev(drv);
@@ -832,7 +985,7 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
goto out;
}
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg) {
err = -ENOMEM;
goto out;
@@ -920,6 +1073,14 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
}
err = func(&drv->wiphy, dev, key_idx);
+#ifdef CONFIG_WIRELESS_EXT
+ if (!err) {
+ if (func == drv->ops->set_default_key)
+ dev->ieee80211_ptr->wext.default_key = key_idx;
+ else
+ dev->ieee80211_ptr->wext.default_mgmt_key = key_idx;
+ }
+#endif
out:
cfg80211_put_dev(drv);
@@ -934,7 +1095,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
- int err;
+ int err, i;
struct net_device *dev;
struct key_params params;
u8 key_idx = 0;
@@ -950,6 +1111,11 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
}
+ if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
+ params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
+ params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
+ }
+
if (info->attrs[NL80211_ATTR_KEY_IDX])
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
@@ -958,44 +1124,8 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- if (key_idx > 5)
- return -EINVAL;
-
- /*
- * Disallow pairwise keys with non-zero index unless it's WEP
- * (because current deployments use pairwise WEP keys with
- * non-zero indizes but 802.11i clearly specifies to use zero)
- */
- if (mac_addr && key_idx &&
- params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
- params.cipher != WLAN_CIPHER_SUITE_WEP104)
- return -EINVAL;
-
- /* TODO: add definitions for the lengths to linux/ieee80211.h */
- switch (params.cipher) {
- case WLAN_CIPHER_SUITE_WEP40:
- if (params.key_len != 5)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- if (params.key_len != 32)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_CCMP:
- if (params.key_len != 16)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_WEP104:
- if (params.key_len != 13)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_AES_CMAC:
- if (params.key_len != 16)
- return -EINVAL;
- break;
- default:
+ if (cfg80211_validate_key_settings(&params, key_idx, mac_addr))
return -EINVAL;
- }
rtnl_lock();
@@ -1003,6 +1133,14 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
if (err)
goto unlock_rtnl;
+ for (i = 0; i < drv->wiphy.n_cipher_suites; i++)
+ if (params.cipher == drv->wiphy.cipher_suites[i])
+ break;
+ if (i == drv->wiphy.n_cipher_suites) {
+ err = -EINVAL;
+ goto out;
+ }
+
if (!drv->ops->add_key) {
err = -EOPNOTSUPP;
goto out;
@@ -1049,6 +1187,15 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
+#ifdef CONFIG_WIRELESS_EXT
+ if (!err) {
+ if (key_idx == dev->ieee80211_ptr->wext.default_key)
+ dev->ieee80211_ptr->wext.default_key = -1;
+ else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key)
+ dev->ieee80211_ptr->wext.default_mgmt_key = -1;
+ }
+#endif
+
out:
cfg80211_put_dev(drv);
dev_put(dev);
@@ -1069,6 +1216,9 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
struct beacon_parameters params;
int haveinfo = 0;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
+ return -EINVAL;
+
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -1186,15 +1336,36 @@ static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
[NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
[NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
[NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
+ [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
};
-static int parse_station_flags(struct nlattr *nla, u32 *staflags)
+static int parse_station_flags(struct genl_info *info,
+ struct station_parameters *params)
{
struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
+ struct nlattr *nla;
int flag;
- *staflags = 0;
+ /*
+ * Try parsing the new attribute first so userspace
+ * can specify both for older kernels.
+ */
+ nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
+ if (nla) {
+ struct nl80211_sta_flag_update *sta_flags;
+
+ sta_flags = nla_data(nla);
+ params->sta_flags_mask = sta_flags->mask;
+ params->sta_flags_set = sta_flags->set;
+ if ((params->sta_flags_mask |
+ params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
+ return -EINVAL;
+ return 0;
+ }
+
+ /* if present, parse the old attribute */
+ nla = info->attrs[NL80211_ATTR_STA_FLAGS];
if (!nla)
return 0;
@@ -1202,11 +1373,12 @@ static int parse_station_flags(struct nlattr *nla, u32 *staflags)
nla, sta_flags_policy))
return -EINVAL;
- *staflags = STATION_FLAG_CHANGED;
+ params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
+ params->sta_flags_mask &= ~1;
for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
if (flags[flag])
- *staflags |= (1<<flag);
+ params->sta_flags_set |= (1<<flag);
return 0;
}
@@ -1424,7 +1596,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
goto out;
@@ -1502,8 +1674,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
params.ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
- if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
- &params.station_flags))
+ if (parse_station_flags(info, &params))
return -EINVAL;
if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
@@ -1516,6 +1687,12 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out_rtnl;
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
+ err = -EINVAL;
+ goto out;
+ }
+
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
if (err)
goto out;
@@ -1567,13 +1744,16 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
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 (!params.aid || params.aid > IEEE80211_MAX_AID)
+ return -EINVAL;
+
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
params.ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
- if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
- &params.station_flags))
+ if (parse_station_flags(info, &params))
return -EINVAL;
rtnl_lock();
@@ -1582,6 +1762,12 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out_rtnl;
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
+ err = -EINVAL;
+ goto out;
+ }
+
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
if (err)
goto out;
@@ -1625,6 +1811,12 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out_rtnl;
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
+ err = -EINVAL;
+ goto out;
+ }
+
if (!drv->ops->del_station) {
err = -EOPNOTSUPP;
goto out;
@@ -1808,7 +2000,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
goto out;
@@ -2124,7 +2316,7 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
goto out;
/* Draw up a netlink message to send back */
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg) {
err = -ENOBUFS;
goto out;
@@ -2302,7 +2494,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
if (!cfg80211_regdomain)
goto out;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg) {
err = -ENOBUFS;
goto out;
@@ -2385,18 +2577,24 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
rem_reg_rules) {
num_rules++;
if (num_rules > NL80211_MAX_SUPP_REG_RULES)
- goto bad_reg;
+ return -EINVAL;
}
- if (!reg_is_valid_request(alpha2))
- return -EINVAL;
+ mutex_lock(&cfg80211_mutex);
+
+ if (!reg_is_valid_request(alpha2)) {
+ r = -EINVAL;
+ goto bad_reg;
+ }
size_of_regd = sizeof(struct ieee80211_regdomain) +
(num_rules * sizeof(struct ieee80211_reg_rule));
rd = kzalloc(size_of_regd, GFP_KERNEL);
- if (!rd)
- return -ENOMEM;
+ if (!rd) {
+ r = -ENOMEM;
+ goto bad_reg;
+ }
rd->n_reg_rules = num_rules;
rd->alpha2[0] = alpha2[0];
@@ -2413,20 +2611,24 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
rule_idx++;
- if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
+ if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
+ r = -EINVAL;
goto bad_reg;
+ }
}
BUG_ON(rule_idx != num_rules);
- mutex_lock(&cfg80211_mutex);
r = set_regdom(rd);
+
mutex_unlock(&cfg80211_mutex);
+
return r;
bad_reg:
+ mutex_unlock(&cfg80211_mutex);
kfree(rd);
- return -EINVAL;
+ return r;
}
static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
@@ -2442,6 +2644,9 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
enum ieee80211_band band;
size_t ie_len;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2492,6 +2697,11 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
else
ie_len = 0;
+ if (ie_len > wiphy->max_scan_ie_len) {
+ err = -EINVAL;
+ goto out;
+ }
+
request = kzalloc(sizeof(*request)
+ sizeof(*ssid) * n_ssids
+ sizeof(channel) * n_channels
@@ -2554,7 +2764,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_IE]) {
request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
- memcpy(request->ie, nla_data(info->attrs[NL80211_ATTR_IE]),
+ memcpy((void *)request->ie,
+ nla_data(info->attrs[NL80211_ATTR_IE]),
request->ie_len);
}
@@ -2710,6 +2921,15 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
struct wiphy *wiphy;
int err;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
+ return -EINVAL;
+
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2731,11 +2951,6 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
goto out;
}
- if (!info->attrs[NL80211_ATTR_MAC]) {
- err = -EINVAL;
- goto out;
- }
-
wiphy = &drv->wiphy;
memset(&req, 0, sizeof(req));
@@ -2761,13 +2976,10 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
}
- if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
- req.auth_type =
- nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
- if (!nl80211_valid_auth_type(req.auth_type)) {
- err = -EINVAL;
- goto out;
- }
+ req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
+ if (!nl80211_valid_auth_type(req.auth_type)) {
+ err = -EINVAL;
+ goto out;
}
err = drv->ops->auth(&drv->wiphy, dev, &req);
@@ -2788,6 +3000,13 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
struct wiphy *wiphy;
int err;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC] ||
+ !info->attrs[NL80211_ATTR_SSID])
+ return -EINVAL;
+
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2809,12 +3028,6 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
goto out;
}
- if (!info->attrs[NL80211_ATTR_MAC] ||
- !info->attrs[NL80211_ATTR_SSID]) {
- err = -EINVAL;
- goto out;
- }
-
wiphy = &drv->wiphy;
memset(&req, 0, sizeof(req));
@@ -2838,6 +3051,19 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
}
+ if (info->attrs[NL80211_ATTR_USE_MFP]) {
+ enum nl80211_mfp use_mfp =
+ nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
+ if (use_mfp == NL80211_MFP_REQUIRED)
+ req.use_mfp = true;
+ else if (use_mfp != NL80211_MFP_NO) {
+ err = -EINVAL;
+ goto out;
+ }
+ }
+
+ req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
+
err = drv->ops->assoc(&drv->wiphy, dev, &req);
out:
@@ -2856,6 +3082,15 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
struct wiphy *wiphy;
int err;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_REASON_CODE])
+ return -EINVAL;
+
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2877,24 +3112,16 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
goto out;
}
- if (!info->attrs[NL80211_ATTR_MAC]) {
- err = -EINVAL;
- goto out;
- }
-
wiphy = &drv->wiphy;
memset(&req, 0, sizeof(req));
req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- if (info->attrs[NL80211_ATTR_REASON_CODE]) {
- req.reason_code =
- nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
- if (req.reason_code == 0) {
- /* Reason Code 0 is reserved */
- err = -EINVAL;
- goto out;
- }
+ req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+ if (req.reason_code == 0) {
+ /* Reason Code 0 is reserved */
+ err = -EINVAL;
+ goto out;
}
if (info->attrs[NL80211_ATTR_IE]) {
@@ -2920,6 +3147,15 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
struct wiphy *wiphy;
int err;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_REASON_CODE])
+ return -EINVAL;
+
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2941,24 +3177,16 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
goto out;
}
- if (!info->attrs[NL80211_ATTR_MAC]) {
- err = -EINVAL;
- goto out;
- }
-
wiphy = &drv->wiphy;
memset(&req, 0, sizeof(req));
req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- if (info->attrs[NL80211_ATTR_REASON_CODE]) {
- req.reason_code =
- nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
- if (req.reason_code == 0) {
- /* Reason Code 0 is reserved */
- err = -EINVAL;
- goto out;
- }
+ req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+ if (req.reason_code == 0) {
+ /* Reason Code 0 is reserved */
+ err = -EINVAL;
+ goto out;
}
if (info->attrs[NL80211_ATTR_IE]) {
@@ -2976,6 +3204,124 @@ unlock_rtnl:
return err;
}
+static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ struct cfg80211_ibss_params ibss;
+ struct wiphy *wiphy;
+ int err;
+
+ memset(&ibss, 0, sizeof(ibss));
+
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
+ !info->attrs[NL80211_ATTR_SSID] ||
+ !nla_len(info->attrs[NL80211_ATTR_SSID]))
+ return -EINVAL;
+
+ ibss.beacon_interval = 100;
+
+ if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
+ ibss.beacon_interval =
+ nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
+ if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
+ return -EINVAL;
+ }
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ if (!drv->ops->join_ibss) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ wiphy = &drv->wiphy;
+
+ if (info->attrs[NL80211_ATTR_MAC])
+ ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
+ ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ ibss.channel = ieee80211_get_channel(wiphy,
+ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+ if (!ibss.channel ||
+ ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
+ ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
+
+ err = cfg80211_join_ibss(drv, dev, &ibss);
+
+out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+unlock_rtnl:
+ rtnl_unlock();
+ return err;
+}
+
+static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ int err;
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ if (!drv->ops->leave_ibss) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ err = cfg80211_leave_ibss(drv, dev, false);
+
+out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+unlock_rtnl:
+ rtnl_unlock();
+ return err;
+}
+
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_GET_WIPHY,
@@ -3177,6 +3523,18 @@ static struct genl_ops nl80211_ops[] = {
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NL80211_CMD_JOIN_IBSS,
+ .doit = nl80211_join_ibss,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_LEAVE_IBSS,
+ .doit = nl80211_leave_ibss,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
.name = "mlme",
@@ -3199,7 +3557,7 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
{
struct sk_buff *msg;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return;
@@ -3211,11 +3569,43 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
}
+static int nl80211_add_scan_req(struct sk_buff *msg,
+ struct cfg80211_registered_device *rdev)
+{
+ struct cfg80211_scan_request *req = rdev->scan_req;
+ struct nlattr *nest;
+ int i;
+
+ if (WARN_ON(!req))
+ return 0;
+
+ nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
+ if (!nest)
+ goto nla_put_failure;
+ for (i = 0; i < req->n_ssids; i++)
+ NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
+ nla_nest_end(msg, nest);
+
+ nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
+ if (!nest)
+ goto nla_put_failure;
+ for (i = 0; i < req->n_channels; i++)
+ NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
+ nla_nest_end(msg, nest);
+
+ if (req->ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
+
+ return 0;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
static int nl80211_send_scan_donemsg(struct sk_buff *msg,
- struct cfg80211_registered_device *rdev,
- struct net_device *netdev,
- u32 pid, u32 seq, int flags,
- u32 cmd)
+ struct cfg80211_registered_device *rdev,
+ struct net_device *netdev,
+ u32 pid, u32 seq, int flags,
+ u32 cmd)
{
void *hdr;
@@ -3226,7 +3616,8 @@ static int nl80211_send_scan_donemsg(struct sk_buff *msg,
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
- /* XXX: we should probably bounce back the request? */
+ /* ignore errors and send incomplete event anyway */
+ nl80211_add_scan_req(msg, rdev);
return genlmsg_end(msg, hdr);
@@ -3240,7 +3631,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
{
struct sk_buff *msg;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return;
@@ -3258,7 +3649,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
{
struct sk_buff *msg;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return;
@@ -3280,7 +3671,7 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
struct sk_buff *msg;
void *hdr;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return;
@@ -3334,7 +3725,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
struct sk_buff *msg;
void *hdr;
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!msg)
return;
@@ -3375,38 +3766,208 @@ void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
}
-void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
- struct net_device *netdev, const u8 *buf,
- size_t len)
+void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *buf, size_t len)
{
nl80211_send_mlme_event(rdev, netdev, buf, len,
NL80211_CMD_DEAUTHENTICATE);
}
-void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
- struct net_device *netdev, const u8 *buf,
- size_t len)
+void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *buf,
+ size_t len)
{
nl80211_send_mlme_event(rdev, netdev, buf, len,
NL80211_CMD_DISASSOCIATE);
}
+static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, int cmd,
+ const u8 *addr)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *addr)
+{
+ nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
+ addr);
+}
+
+void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *addr)
+{
+ nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, addr);
+}
+
+void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *bssid,
+ gfp_t gfp)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *addr,
+ enum nl80211_key_type key_type, int key_id,
+ const u8 *tsc)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ if (addr)
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
+ if (tsc)
+ NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
+ struct ieee80211_channel *channel_before,
+ struct ieee80211_channel *channel_after)
+{
+ struct sk_buff *msg;
+ void *hdr;
+ struct nlattr *nl_freq;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ /*
+ * Since we are applying the beacon hint to a wiphy we know its
+ * wiphy_idx is valid
+ */
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
+
+ /* Before */
+ nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
+ if (!nl_freq)
+ goto nla_put_failure;
+ if (nl80211_msg_put_channel(msg, channel_before))
+ goto nla_put_failure;
+ nla_nest_end(msg, nl_freq);
+
+ /* After */
+ nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
+ if (!nl_freq)
+ goto nla_put_failure;
+ if (nl80211_msg_put_channel(msg, channel_after))
+ goto nla_put_failure;
+ nla_nest_end(msg, nl_freq);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
+
+ return;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
/* initialisation/exit functions */
int nl80211_init(void)
{
- int err, i;
+ int err;
- err = genl_register_family(&nl80211_fam);
+ err = genl_register_family_with_ops(&nl80211_fam,
+ nl80211_ops, ARRAY_SIZE(nl80211_ops));
if (err)
return err;
- for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
- err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
- if (err)
- goto err_out;
- }
-
err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
if (err)
goto err_out;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 18:58:08 +0000