diff options
| -rw-r--r-- | include/net/cfg80211.h | 4 | ||||
| -rw-r--r-- | include/uapi/linux/nl80211.h | 8 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 24 |
3 files changed, 34 insertions, 2 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index e3a48b0a2b3b..f46e1e15746d 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1986,6 +1986,8 @@ struct cfg80211_update_ft_ies_params { * @len: buffer length * @no_cck: don't use cck rates for this frame * @dont_wait_for_ack: tells the low level not to wait for an ack + * @n_csa_offsets: length of csa_offsets array + * @csa_offsets: array of all the csa offsets in the frame */ struct cfg80211_mgmt_tx_params { struct ieee80211_channel *chan; @@ -1995,6 +1997,8 @@ struct cfg80211_mgmt_tx_params { size_t len; bool no_cck; bool dont_wait_for_ack; + int n_csa_offsets; + const u16 *csa_offsets; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index b65095a85dee..ec90fc9d2358 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -503,6 +503,9 @@ * TX status event pertaining to the TX request. * %NL80211_ATTR_TX_NO_CCK_RATE is used to decide whether to send the * management frames at CCK rate or not in 2GHz band. + * %NL80211_ATTR_CSA_C_OFFSETS_TX is an array of offsets to CSA + * counters which will be updated to the current value. This attribute + * is used during CSA period. * @NL80211_CMD_FRAME_WAIT_CANCEL: When an off-channel TX was requested, this * command may be used with the corresponding cookie to cancel the wait * time if it is known that it is no longer necessary. @@ -1576,6 +1579,9 @@ enum nl80211_commands { * advertise values that cannot always be met. In such cases, an attempt * to add a new station entry with @NL80211_CMD_NEW_STATION may fail. * + * @NL80211_ATTR_CSA_C_OFFSETS_TX: An array of csa counter offsets (u16) which + * should be updated when the frame is transmitted. + * * @NL80211_ATTR_TDLS_PEER_CAPABILITY: flags for TDLS peer capabilities, u32. * As specified in the &enum nl80211_tdls_peer_capability. * @@ -1920,6 +1926,8 @@ enum nl80211_attrs { NL80211_ATTR_IFACE_SOCKET_OWNER, + NL80211_ATTR_CSA_C_OFFSETS_TX, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 74e7299e4add..4c0ca40ef90e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -386,6 +386,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG }, + [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, }; /* policy for the key attributes */ @@ -7786,6 +7787,27 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) if (!chandef.chan && params.offchan) return -EINVAL; + params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); + params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); + + if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) { + int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); + int i; + + if (len % sizeof(u16)) + return -EINVAL; + + params.n_csa_offsets = len / sizeof(u16); + params.csa_offsets = + nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); + + /* check that all the offsets fit the frame */ + for (i = 0; i < params.n_csa_offsets; i++) { + if (params.csa_offsets[i] >= params.len) + return -EINVAL; + } + } + if (!params.dont_wait_for_ack) { msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) @@ -7799,8 +7821,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) } } - params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); - params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); params.chan = chandef.chan; err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); if (err) |