diff options
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/core.h | 3 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 295 |
2 files changed, 295 insertions, 3 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index 37d70dc2fe82..949c9573d8d7 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -108,6 +108,9 @@ cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev) for (i = 0; i < rdev->wowlan->n_patterns; i++) kfree(rdev->wowlan->patterns[i].mask); kfree(rdev->wowlan->patterns); + if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock) + sock_release(rdev->wowlan->tcp->sock); + kfree(rdev->wowlan->tcp); kfree(rdev->wowlan); } diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index cc0fad30b8c9..d29a461b4981 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -19,6 +19,7 @@ #include <net/genetlink.h> #include <net/cfg80211.h> #include <net/sock.h> +#include <net/inet_connection_sock.h> #include "core.h" #include "nl80211.h" #include "reg.h" @@ -399,6 +400,26 @@ nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, + [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, +}; + +static const struct nla_policy +nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { + [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, + [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, + [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, + [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, + [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, + [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, + [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { + .len = sizeof(struct nl80211_wowlan_tcp_data_seq) + }, + [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { + .len = sizeof(struct nl80211_wowlan_tcp_data_token) + }, + [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, + [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, + [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, }; /* policy for GTK rekey offload attributes */ @@ -872,6 +893,48 @@ nla_put_failure: return -ENOBUFS; } +#ifdef CONFIG_PM +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; + struct nlattr *nl_tcp; + + if (!tcp) + return 0; + + nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); + if (!nl_tcp) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, + tcp->data_payload_max)) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, + tcp->data_payload_max)) + return -ENOBUFS; + + if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) + return -ENOBUFS; + + if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, + sizeof(*tcp->tok), tcp->tok)) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, + tcp->data_interval_max)) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, + tcp->wake_payload_max)) + return -ENOBUFS; + + nla_nest_end(msg, nl_tcp); + return 0; +} +#endif + static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags, struct cfg80211_registered_device *dev) { @@ -1246,6 +1309,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flag goto nla_put_failure; } + if (nl80211_send_wowlan_tcp_caps(dev, msg)) + goto nla_put_failure; + nla_nest_end(msg, nl_wowlan); } #endif @@ -6930,16 +6996,67 @@ static int nl80211_send_wowlan_patterns(struct sk_buff *msg, return 0; } +static int nl80211_send_wowlan_tcp(struct sk_buff *msg, + struct cfg80211_wowlan_tcp *tcp) +{ + struct nlattr *nl_tcp; + + if (!tcp) + return 0; + + nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); + if (!nl_tcp) + return -ENOBUFS; + + if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || + nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || + nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || + nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || + nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || + nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, + tcp->payload_len, tcp->payload) || + nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, + tcp->data_interval) || + nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, + tcp->wake_len, tcp->wake_data) || + nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, + DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) + return -ENOBUFS; + + if (tcp->payload_seq.len && + nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, + sizeof(tcp->payload_seq), &tcp->payload_seq)) + return -ENOBUFS; + + if (tcp->payload_tok.len && + nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, + sizeof(tcp->payload_tok) + tcp->tokens_size, + &tcp->payload_tok)) + return -ENOBUFS; + + return 0; +} + static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct sk_buff *msg; void *hdr; + u32 size = NLMSG_DEFAULT_SIZE; - if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) + if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns && + !rdev->wiphy.wowlan.tcp) return -EOPNOTSUPP; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (rdev->wowlan && rdev->wowlan->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; + } + + msg = nlmsg_new(size, GFP_KERNEL); if (!msg) return -ENOMEM; @@ -6970,8 +7087,13 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) (rdev->wowlan->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)) + goto nla_put_failure; + nla_nest_end(msg, nl_wowlan); } @@ -6983,6 +7105,150 @@ nla_put_failure: return -ENOBUFS; } +static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, + struct nlattr *attr, + struct cfg80211_wowlan *trig) +{ + struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; + struct cfg80211_wowlan_tcp *cfg; + struct nl80211_wowlan_tcp_data_token *tok = NULL; + struct nl80211_wowlan_tcp_data_seq *seq = NULL; + u32 size; + u32 data_size, wake_size, tokens_size = 0, wake_mask_size; + int err, port; + + if (!rdev->wiphy.wowlan.tcp) + return -EINVAL; + + err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, + nla_data(attr), nla_len(attr), + nl80211_wowlan_tcp_policy); + if (err) + return err; + + if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || + !tb[NL80211_WOWLAN_TCP_DST_IPV4] || + !tb[NL80211_WOWLAN_TCP_DST_MAC] || + !tb[NL80211_WOWLAN_TCP_DST_PORT] || + !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || + !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || + !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || + !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) + return -EINVAL; + + data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); + 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) + return -EINVAL; + + wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); + if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max) + return -EINVAL; + + wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); + if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) + return -EINVAL; + + if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { + u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); + + tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); + tokens_size = tokln - sizeof(*tok); + + if (!tok->len || tokens_size % tok->len) + return -EINVAL; + if (!rdev->wiphy.wowlan.tcp->tok) + return -EINVAL; + if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len) + return -EINVAL; + if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len) + return -EINVAL; + if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize) + return -EINVAL; + if (tok->offset + tok->len > data_size) + return -EINVAL; + } + + if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { + seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); + if (!rdev->wiphy.wowlan.tcp->seq) + return -EINVAL; + if (seq->len == 0 || seq->len > 4) + return -EINVAL; + if (seq->len + seq->offset > data_size) + return -EINVAL; + } + + size = sizeof(*cfg); + size += data_size; + size += wake_size + wake_mask_size; + size += tokens_size; + + cfg = kzalloc(size, GFP_KERNEL); + if (!cfg) + return -ENOMEM; + cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); + cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]); + memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), + ETH_ALEN); + if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) + port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); + else + port = 0; +#ifdef CONFIG_INET + /* allocate a socket and port for it and use it */ + err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, + IPPROTO_TCP, &cfg->sock, 1); + if (err) { + kfree(cfg); + return err; + } + if (inet_csk_get_port(cfg->sock->sk, port)) { + sock_release(cfg->sock); + kfree(cfg); + return -EADDRINUSE; + } + cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; +#else + if (!port) { + kfree(cfg); + return -EINVAL; + } + cfg->src_port = port; +#endif + + cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); + cfg->payload_len = data_size; + cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; + memcpy((void *)cfg->payload, + nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), + data_size); + if (seq) + cfg->payload_seq = *seq; + cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); + cfg->wake_len = wake_size; + cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; + memcpy((void *)cfg->wake_data, + nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), + wake_size); + cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + + data_size + wake_size; + memcpy((void *)cfg->wake_mask, + nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), + wake_mask_size); + if (tok) { + cfg->tokens_size = tokens_size; + memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); + } + + trig->tcp = cfg; + + return 0; +} + static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -6993,7 +7259,8 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) int err, i; bool prev_enabled = rdev->wowlan; - if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) + if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns && + !rdev->wiphy.wowlan.tcp) return -EOPNOTSUPP; if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { @@ -7120,6 +7387,14 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) } } + if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { + err = nl80211_parse_wowlan_tcp( + rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], + &new_triggers); + if (err) + goto error; + } + ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); if (!ntrig) { err = -ENOMEM; @@ -7137,6 +7412,9 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) for (i = 0; i < new_triggers.n_patterns; i++) kfree(new_triggers.patterns[i].mask); kfree(new_triggers.patterns); + if (new_triggers.tcp && new_triggers.tcp->sock) + sock_release(new_triggers.tcp->sock); + kfree(new_triggers.tcp); return err; } #endif @@ -9418,6 +9696,17 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, wakeup->pattern_idx)) goto free_msg; + if (wakeup->tcp_match) + nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH); + + if (wakeup->tcp_connlost) + nla_put_flag(msg, + NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST); + + if (wakeup->tcp_nomoretokens) + nla_put_flag(msg, + NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS); + if (wakeup->packet) { u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; |