From: Javier Cardona Date: Tue, 3 May 2011 23:57:11 +0000 (-0700) Subject: nl80211: Let userspace drive the peer link management states. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9c3990aaec0ad9f686ef6480f6861f2df89b2a7a;p=mv-sheeva.git nl80211: Let userspace drive the peer link management states. Signed-off-by: Javier Cardona Signed-off-by: John W. Linville --- diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index c53b916036c..de96783954a 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -913,6 +913,9 @@ enum nl80211_commands { * @NL80211_ATTR_SUPPORT_MESH_AUTH: Currently, this means the underlying driver * allows auth frames in a mesh to be passed to userspace for processing via * the @NL80211_MESH_SETUP_USERSPACE_AUTH flag. + * @NL80211_ATTR_STA_PLINK_STATE: The state of a mesh peer link. Used when + * userspace is driving the peer link management state machine. + * @NL80211_MESH_SETUP_USERSPACE_AMPE must be enabled. * * @NL80211_ATTR_WOWLAN_SUPPORTED: indicates, as part of the wiphy capabilities, * the supported WoWLAN triggers @@ -1109,6 +1112,7 @@ enum nl80211_attrs { NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, NL80211_ATTR_SUPPORT_MESH_AUTH, + NL80211_ATTR_STA_PLINK_STATE, NL80211_ATTR_WOWLAN_TRIGGERS, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 10c17d68059..4b0d035be64 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -371,6 +371,33 @@ enum plink_actions { PLINK_ACTION_BLOCK, }; +/** + * enum plink_states - state of a mesh peer link finite state machine + * + * @PLINK_LISTEN: initial state, considered the implicit state of non + * existant mesh peer links + * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh + * peer @PLINK_OPN_RCVD: mesh plink open frame has been received from + * this mesh peer + * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from + * this mesh peer + * @PLINK_ESTAB: mesh peer link is established + * @PLINK_HOLDING: mesh peer link is being closed or cancelled + * @PLINK_BLOCKED: all frames transmitted from this mesh plink are + * discarded + * @PLINK_INVALID: reserved + */ +enum plink_state { + PLINK_LISTEN, + PLINK_OPN_SNT, + PLINK_OPN_RCVD, + PLINK_CNF_RCVD, + PLINK_ESTAB, + PLINK_HOLDING, + PLINK_BLOCKED, + PLINK_INVALID, +}; + /** * struct station_parameters - station parameters * @@ -387,6 +414,7 @@ enum plink_actions { * @listen_interval: listen interval or -1 for no change * @aid: AID or zero for no change * @plink_action: plink action to take + * @plink_state: set the peer link state for a station * @ht_capa: HT capabilities of station */ struct station_parameters { @@ -397,6 +425,7 @@ struct station_parameters { u16 aid; u8 supported_rates_len; u8 plink_action; + u8 plink_state; struct ieee80211_ht_cap *ht_capa; }; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 18c2555e04e..51f775772d9 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -734,15 +734,27 @@ static void sta_apply_parameters(struct ieee80211_local *local, params->ht_capa, &sta->sta.ht_cap); - if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { - switch (params->plink_action) { - case PLINK_ACTION_OPEN: - mesh_plink_open(sta); - break; - case PLINK_ACTION_BLOCK: - mesh_plink_block(sta); - break; - } + if (ieee80211_vif_is_mesh(&sdata->vif)) { + if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) + switch (params->plink_state) { + case PLINK_LISTEN: + case PLINK_ESTAB: + case PLINK_BLOCKED: + sta->plink_state = params->plink_state; + break; + default: + /* nothing */ + break; + } + else + switch (params->plink_action) { + case PLINK_ACTION_OPEN: + mesh_plink_open(sta); + break; + case PLINK_ACTION_BLOCK: + mesh_plink_block(sta); + break; + } } } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index af1a7f8c867..f00b4dcb49d 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -173,29 +173,6 @@ struct sta_ampdu_mlme { }; -/** - * enum plink_state - state of a mesh peer link finite state machine - * - * @PLINK_LISTEN: initial state, considered the implicit state of non existant - * mesh peer links - * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer - * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer - * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from this mesh - * peer - * @PLINK_ESTAB: mesh peer link is established - * @PLINK_HOLDING: mesh peer link is being closed or cancelled - * @PLINK_BLOCKED: all frames transmitted from this mesh plink are discarded - */ -enum plink_state { - PLINK_LISTEN, - PLINK_OPN_SNT, - PLINK_OPN_RCVD, - PLINK_CNF_RCVD, - PLINK_ESTAB, - PLINK_HOLDING, - PLINK_BLOCKED -}; - /** * struct sta_info - STA information * diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 64efc2d7a7a..f698c1d116e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -174,6 +174,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, + [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, }; /* policy for the key attributes */ @@ -2247,6 +2248,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) memset(¶ms, 0, sizeof(params)); params.listen_interval = -1; + params.plink_state = PLINK_INVALID; if (info->attrs[NL80211_ATTR_STA_AID]) return -EINVAL; @@ -2278,6 +2280,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) params.plink_action = nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); + if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) + params.plink_state = + nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); + err = get_vlan(info, rdev, ¶ms.vlan); if (err) goto out;