diff options
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r-- | net/wireless/nl80211.c | 74 |
1 files changed, 63 insertions, 11 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 549d0a4083b3..0048f90944dd 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -213,6 +213,36 @@ cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) return __cfg80211_rdev_from_attrs(netns, info->attrs); } +static int validate_beacon_head(const struct nlattr *attr) +{ + const u8 *data = nla_data(attr); + unsigned int len = nla_len(attr); + const struct element *elem; + const struct ieee80211_mgmt *mgmt = (void *)data; + unsigned int fixedlen = offsetof(struct ieee80211_mgmt, + u.beacon.variable); + + if (len < fixedlen) + goto err; + + if (ieee80211_hdrlen(mgmt->frame_control) != + offsetof(struct ieee80211_mgmt, u.beacon)) + goto err; + + data += fixedlen; + len -= fixedlen; + + for_each_element(elem, data, len) { + /* nothing */ + } + + if (for_each_element_completed(elem, data, len)) + return 0; + +err: + return -EINVAL; +} + /* policy for the attributes */ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, @@ -265,7 +295,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, .len = IEEE80211_MAX_MESH_ID_LEN }, - [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, + [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_BINARY, + .len = ETH_ALEN }, [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, @@ -302,6 +333,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, + [NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 }, [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, [NL80211_ATTR_PID] = { .type = NLA_U32 }, @@ -327,6 +359,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, + [NL80211_ATTR_MEASUREMENT_DURATION] = { .type = NLA_U16 }, + [NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY] = { .type = NLA_FLAG }, [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, @@ -375,6 +409,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_MDID] = { .type = NLA_U16 }, [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, .len = IEEE80211_MAX_DATA_LEN }, + [NL80211_ATTR_CRIT_PROT_ID] = { .type = NLA_U16 }, + [NL80211_ATTR_MAX_CRIT_PROT_DURATION] = { .type = NLA_U16 }, [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 }, [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, @@ -400,6 +436,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 }, [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 }, [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 }, + [NL80211_ATTR_OPER_CLASS] = { .type = NLA_U8 }, [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN }, [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG }, [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 }, @@ -2069,6 +2106,8 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); + memset(chandef, 0, sizeof(*chandef)); + chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); chandef->width = NL80211_CHAN_WIDTH_20_NOHT; chandef->center_freq1 = control_freq; @@ -2538,7 +2577,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag if (rdev->ops->get_channel) { int ret; - struct cfg80211_chan_def chandef; + struct cfg80211_chan_def chandef = {}; ret = rdev_get_channel(rdev, wdev, &chandef); if (ret == 0) { @@ -3025,7 +3064,7 @@ static void get_key_callback(void *c, struct key_params *params) params->cipher))) goto nla_put_failure; - if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) + if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx)) goto nla_put_failure; nla_nest_end(cookie->msg, key); @@ -3678,6 +3717,11 @@ static int nl80211_parse_beacon(struct nlattr *attrs[], memset(bcn, 0, sizeof(*bcn)); if (attrs[NL80211_ATTR_BEACON_HEAD]) { + int ret = validate_beacon_head(attrs[NL80211_ATTR_BEACON_HEAD]); + + if (ret) + return ret; + bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); if (!bcn->head_len) @@ -5321,6 +5365,9 @@ static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) if (!rdev->ops->del_mpath) return -EOPNOTSUPP; + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + return rdev_del_mpath(rdev, dev, dst); } @@ -12942,7 +12989,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + len, gfp); if (!msg) return; @@ -13094,7 +13141,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); if (!msg) return; @@ -13136,7 +13183,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); if (!msg) return; @@ -13173,7 +13220,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + msg = nlmsg_new(100 + ie_len, GFP_KERNEL); if (!msg) return; @@ -13249,7 +13296,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, trace_cfg80211_notify_new_peer_candidate(dev, addr); - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + ie_len, gfp); if (!msg) return; @@ -13620,7 +13667,7 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + len, gfp); if (!msg) return -ENOMEM; @@ -13664,7 +13711,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + len, gfp); if (!msg) return; @@ -14014,6 +14061,11 @@ void cfg80211_ch_switch_notify(struct net_device *dev, wdev->chandef = *chandef; wdev->preset_chandef = *chandef; + + if (wdev->iftype == NL80211_IFTYPE_STATION && + !WARN_ON(!wdev->current_bss)) + wdev->current_bss->pub.channel = chandef->chan; + nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, NL80211_CMD_CH_SWITCH_NOTIFY, 0); } @@ -14473,7 +14525,7 @@ void cfg80211_ft_event(struct net_device *netdev, if (!ft_event->target_ap) return; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL); if (!msg) return; |