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nl80211: Let userspace drive the peer link management states.

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Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Javier Cardona 2011-05-03 16:57:11 -07:00 committed by John W. Linville
parent 0a35d36d6f
commit 9c3990aaec
5 changed files with 60 additions and 32 deletions
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4
include/linux/nl80211.h
View File

@ -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,

29
include/net/cfg80211.h
View File

@ -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;
};

30
net/mac80211/cfg.c
View File

@ -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;
}
}
}

23
net/mac80211/sta_info.h
View File

@ -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
*

6
net/wireless/nl80211.c
View File

@ -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(&params, 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, &params.vlan);
if (err)
goto out;