diff options
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 368 |
1 files changed, 361 insertions, 7 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index bb8de268a6b..89dd3793e03 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -128,6 +128,9 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { .len = sizeof(struct nl80211_sta_flag_update), }, [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, + [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, + [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, + [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, }; /* IE validation */ @@ -347,6 +350,17 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, CMD(join_ibss, JOIN_IBSS); #undef CMD + + if (dev->ops->connect) { + i++; + NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); + } + + if (dev->ops->disconnect) { + i++; + NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); + } + nla_nest_end(msg, nl_cmds); return genlmsg_end(msg, hdr); @@ -3001,12 +3015,31 @@ static int nl80211_dump_scan(struct sk_buff *skb, static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) { - return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM || - auth_type == NL80211_AUTHTYPE_SHARED_KEY || - auth_type == NL80211_AUTHTYPE_FT || - auth_type == NL80211_AUTHTYPE_NETWORK_EAP; + return auth_type <= NL80211_AUTHTYPE_MAX; +} + +static bool nl80211_valid_wpa_versions(u32 wpa_versions) +{ + return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | + NL80211_WPA_VERSION_2)); +} + +static bool nl80211_valid_akm_suite(u32 akm) +{ + return akm == WLAN_AKM_SUITE_8021X || + akm == WLAN_AKM_SUITE_PSK; +} + +static bool nl80211_valid_cipher_suite(u32 cipher) +{ + return cipher == WLAN_CIPHER_SUITE_WEP40 || + cipher == WLAN_CIPHER_SUITE_WEP104 || + cipher == WLAN_CIPHER_SUITE_TKIP || + cipher == WLAN_CIPHER_SUITE_CCMP || + cipher == WLAN_CIPHER_SUITE_AES_CMAC; } + static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *drv; @@ -3086,6 +3119,68 @@ unlock_rtnl: return err; } +static int nl80211_crypto_settings(struct genl_info *info, + struct cfg80211_crypto_settings *settings) +{ + settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; + + if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { + void *data; + int len, i; + + data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); + len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); + settings->n_ciphers_pairwise = len / sizeof(u32); + + if (len % sizeof(u32)) + return -EINVAL; + + if (settings->n_ciphers_pairwise > NL80211_MAX_NR_CIPHER_SUITES) + return -EINVAL; + + memcpy(settings->ciphers_pairwise, data, len); + + for (i = 0; i < settings->n_ciphers_pairwise; i++) + if (!nl80211_valid_cipher_suite( + settings->ciphers_pairwise[i])) + return -EINVAL; + } + + if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { + settings->cipher_group = + nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); + if (!nl80211_valid_cipher_suite(settings->cipher_group)) + return -EINVAL; + } + + if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { + settings->wpa_versions = + nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); + if (!nl80211_valid_wpa_versions(settings->wpa_versions)) + return -EINVAL; + } + + if (info->attrs[NL80211_ATTR_AKM_SUITES]) { + void *data; + int len, i; + + data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); + len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); + settings->n_akm_suites = len / sizeof(u32); + + if (len % sizeof(u32)) + return -EINVAL; + + memcpy(settings->akm_suites, data, len); + + for (i = 0; i < settings->n_ciphers_pairwise; i++) + if (!nl80211_valid_akm_suite(settings->akm_suites[i])) + return -EINVAL; + } + + return 0; +} + static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *drv; @@ -3156,9 +3251,9 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) } } - req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; - - err = drv->ops->assoc(&drv->wiphy, dev, &req); + err = nl80211_crypto_settings(info, &req.crypto); + if (!err) + err = drv->ops->assoc(&drv->wiphy, dev, &req); out: cfg80211_put_dev(drv); @@ -3538,6 +3633,130 @@ void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) EXPORT_SYMBOL(cfg80211_testmode_event); #endif +static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *drv; + struct net_device *dev; + struct cfg80211_connect_params connect; + struct wiphy *wiphy; + int err; + + memset(&connect, 0, sizeof(connect)); + + if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) + return -EINVAL; + + if (!info->attrs[NL80211_ATTR_SSID] || + !nla_len(info->attrs[NL80211_ATTR_SSID])) + return -EINVAL; + + if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { + connect.auth_type = + nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); + if (!nl80211_valid_auth_type(connect.auth_type)) + return -EINVAL; + } else + connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; + + connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; + + err = nl80211_crypto_settings(info, &connect.crypto); + if (err) + return err; + rtnl_lock(); + + err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); + if (err) + goto unlock_rtnl; + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { + err = -EOPNOTSUPP; + goto out; + } + + if (!netif_running(dev)) { + err = -ENETDOWN; + goto out; + } + + wiphy = &drv->wiphy; + + connect.bssid = NULL; + connect.channel = NULL; + connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; + + if (info->attrs[NL80211_ATTR_MAC]) + connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); + connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); + connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); + + if (info->attrs[NL80211_ATTR_IE]) { + connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); + connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); + } + + if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { + connect.channel = + ieee80211_get_channel(wiphy, + nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); + if (!connect.channel || + connect.channel->flags & IEEE80211_CHAN_DISABLED) { + err = -EINVAL; + goto out; + } + } + + err = cfg80211_connect(drv, dev, &connect); + +out: + cfg80211_put_dev(drv); + dev_put(dev); +unlock_rtnl: + rtnl_unlock(); + return err; +} + +static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *drv; + struct net_device *dev; + int err; + u16 reason; + + if (!info->attrs[NL80211_ATTR_REASON_CODE]) + reason = WLAN_REASON_DEAUTH_LEAVING; + else + reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); + + if (reason == 0) + return -EINVAL; + + rtnl_lock(); + + err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); + if (err) + goto unlock_rtnl; + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { + err = -EOPNOTSUPP; + goto out; + } + + if (!netif_running(dev)) { + err = -ENETDOWN; + goto out; + } + + err = cfg80211_disconnect(drv, dev, reason); + +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, @@ -3759,6 +3978,18 @@ static struct genl_ops nl80211_ops[] = { .flags = GENL_ADMIN_PERM, }, #endif + { + .cmd = NL80211_CMD_CONNECT, + .doit = nl80211_connect, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + { + .cmd = NL80211_CMD_DISCONNECT, + .doit = nl80211_disconnect, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, }; static struct genl_multicast_group nl80211_mlme_mcgrp = { .name = "mlme", @@ -4077,6 +4308,129 @@ void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, addr, gfp); } +void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len, + u16 status, gfp_t gfp) +{ + struct sk_buff *msg; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); + 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 (bssid) + NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); + NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); + if (req_ie) + NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); + if (resp_ie) + NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); + + 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_send_roamed(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) +{ + struct sk_buff *msg; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); + 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 (req_ie) + NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); + if (resp_ie) + NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); + + 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_send_disconnected(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u16 reason, + u8 *ie, size_t ie_len, bool from_ap, gfp_t gfp) +{ + struct sk_buff *msg; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); + 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 (from_ap && reason) + NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); + if (from_ap) + NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); + if (ie) + NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); + + 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_send_ibss_bssid(struct cfg80211_registered_device *rdev, struct net_device *netdev, const u8 *bssid, gfp_t gfp) |