Commit 57cf8043 authored by Javier Cardona's avatar Javier Cardona Committed by John W. Linville

nl80211: Move peer link state definition to nl80211

These definitions need to be exposed now that we can set the peer link
states via NL80211_ATTR_STA_PLINK_STATE.  They were already being
(opaquely) reported by NL80211_STA_INFO_PLINK_STATE.
Signed-off-by: default avatarJavier Cardona <javier@cozybit.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 108697c4
......@@ -973,9 +973,10 @@ 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_STA_PLINK_STATE: The state of a mesh peer link as
* defined in &enum nl80211_plink_state. 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
......@@ -1396,6 +1397,7 @@ enum nl80211_sta_bss_param {
* @NL80211_STA_INFO_LLID: the station's mesh LLID
* @NL80211_STA_INFO_PLID: the station's mesh PLID
* @NL80211_STA_INFO_PLINK_STATE: peer link state for the station
* (see %enum nl80211_plink_state)
* @NL80211_STA_INFO_RX_BITRATE: last unicast data frame rx rate, nested
* attribute, like NL80211_STA_INFO_TX_BITRATE.
* @NL80211_STA_INFO_BSS_PARAM: current station's view of BSS, nested attribute
......@@ -2326,4 +2328,37 @@ enum nl80211_if_combination_attrs {
MAX_NL80211_IFACE_COMB = NUM_NL80211_IFACE_COMB - 1
};
/**
* enum nl80211_plink_state - state of a mesh peer link finite state machine
*
* @NL80211_PLINK_LISTEN: initial state, considered the implicit
* state of non existant mesh peer links
* @NL80211_PLINK_OPN_SNT: mesh plink open frame has been sent to
* this mesh peer
* @NL80211_PLINK_OPN_RCVD: mesh plink open frame has been received
* from this mesh peer
* @NL80211_PLINK_CNF_RCVD: mesh plink confirm frame has been
* received from this mesh peer
* @NL80211_PLINK_ESTAB: mesh peer link is established
* @NL80211_PLINK_HOLDING: mesh peer link is being closed or cancelled
* @NL80211_PLINK_BLOCKED: all frames transmitted from this mesh
* plink are discarded
* @NUM_NL80211_PLINK_STATES: number of peer link states
* @MAX_NL80211_PLINK_STATES: highest numerical value of plink states
*/
enum nl80211_plink_state {
NL80211_PLINK_LISTEN,
NL80211_PLINK_OPN_SNT,
NL80211_PLINK_OPN_RCVD,
NL80211_PLINK_CNF_RCVD,
NL80211_PLINK_ESTAB,
NL80211_PLINK_HOLDING,
NL80211_PLINK_BLOCKED,
/* keep last */
NUM_NL80211_PLINK_STATES,
MAX_NL80211_PLINK_STATES = NUM_NL80211_PLINK_STATES - 1
};
#endif /* __LINUX_NL80211_H */
......@@ -371,33 +371,6 @@ 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
*
......
......@@ -730,9 +730,9 @@ static void sta_apply_parameters(struct ieee80211_local *local,
#ifdef CONFIG_MAC80211_MESH
if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
switch (params->plink_state) {
case PLINK_LISTEN:
case PLINK_ESTAB:
case PLINK_BLOCKED:
case NL80211_PLINK_LISTEN:
case NL80211_PLINK_ESTAB:
case NL80211_PLINK_BLOCKED:
sta->plink_state = params->plink_state;
break;
default:
......
......@@ -83,7 +83,7 @@ void mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
*/
static inline void mesh_plink_fsm_restart(struct sta_info *sta)
{
sta->plink_state = PLINK_LISTEN;
sta->plink_state = NL80211_PLINK_LISTEN;
sta->llid = sta->plid = sta->reason = 0;
sta->plink_retries = 0;
}
......@@ -126,11 +126,11 @@ static bool __mesh_plink_deactivate(struct sta_info *sta)
struct ieee80211_sub_if_data *sdata = sta->sdata;
bool deactivated = false;
if (sta->plink_state == PLINK_ESTAB) {
if (sta->plink_state == NL80211_PLINK_ESTAB) {
mesh_plink_dec_estab_count(sdata);
deactivated = true;
}
sta->plink_state = PLINK_BLOCKED;
sta->plink_state = NL80211_PLINK_BLOCKED;
mesh_path_flush_by_nexthop(sta);
return deactivated;
......@@ -268,7 +268,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates,
sta->last_rx = jiffies;
sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
if (mesh_peer_accepts_plinks(elems) &&
sta->plink_state == PLINK_LISTEN &&
sta->plink_state == NL80211_PLINK_LISTEN &&
sdata->u.mesh.accepting_plinks &&
sdata->u.mesh.mshcfg.auto_open_plinks)
mesh_plink_open(sta);
......@@ -308,8 +308,8 @@ static void mesh_plink_timer(unsigned long data)
sdata = sta->sdata;
switch (sta->plink_state) {
case PLINK_OPN_RCVD:
case PLINK_OPN_SNT:
case NL80211_PLINK_OPN_RCVD:
case NL80211_PLINK_OPN_SNT:
/* retry timer */
if (sta->plink_retries < dot11MeshMaxRetries(sdata)) {
u32 rand;
......@@ -328,17 +328,17 @@ static void mesh_plink_timer(unsigned long data)
}
reason = cpu_to_le16(MESH_MAX_RETRIES);
/* fall through on else */
case PLINK_CNF_RCVD:
case NL80211_PLINK_CNF_RCVD:
/* confirm timer */
if (!reason)
reason = cpu_to_le16(MESH_CONFIRM_TIMEOUT);
sta->plink_state = PLINK_HOLDING;
sta->plink_state = NL80211_PLINK_HOLDING;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid, plid,
reason);
break;
case PLINK_HOLDING:
case NL80211_PLINK_HOLDING:
/* holding timer */
del_timer(&sta->plink_timer);
mesh_plink_fsm_restart(sta);
......@@ -386,11 +386,11 @@ int mesh_plink_open(struct sta_info *sta)
spin_lock_bh(&sta->lock);
get_random_bytes(&llid, 2);
sta->llid = llid;
if (sta->plink_state != PLINK_LISTEN) {
if (sta->plink_state != NL80211_PLINK_LISTEN) {
spin_unlock_bh(&sta->lock);
return -EBUSY;
}
sta->plink_state = PLINK_OPN_SNT;
sta->plink_state = NL80211_PLINK_OPN_SNT;
mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
spin_unlock_bh(&sta->lock);
mpl_dbg("Mesh plink: starting establishment with %pM\n",
......@@ -407,7 +407,7 @@ void mesh_plink_block(struct sta_info *sta)
spin_lock_bh(&sta->lock);
deactivated = __mesh_plink_deactivate(sta);
sta->plink_state = PLINK_BLOCKED;
sta->plink_state = NL80211_PLINK_BLOCKED;
spin_unlock_bh(&sta->lock);
if (deactivated)
......@@ -430,13 +430,13 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
__le16 plid, llid, reason;
#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
static const char *mplstates[] = {
[PLINK_LISTEN] = "LISTEN",
[PLINK_OPN_SNT] = "OPN-SNT",
[PLINK_OPN_RCVD] = "OPN-RCVD",
[PLINK_CNF_RCVD] = "CNF_RCVD",
[PLINK_ESTAB] = "ESTAB",
[PLINK_HOLDING] = "HOLDING",
[PLINK_BLOCKED] = "BLOCKED"
[NL80211_PLINK_LISTEN] = "LISTEN",
[NL80211_PLINK_OPN_SNT] = "OPN-SNT",
[NL80211_PLINK_OPN_RCVD] = "OPN-RCVD",
[NL80211_PLINK_CNF_RCVD] = "CNF_RCVD",
[NL80211_PLINK_ESTAB] = "ESTAB",
[NL80211_PLINK_HOLDING] = "HOLDING",
[NL80211_PLINK_BLOCKED] = "BLOCKED"
};
#endif
......@@ -502,7 +502,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
return;
}
if (sta && sta->plink_state == PLINK_BLOCKED) {
if (sta && sta->plink_state == NL80211_PLINK_BLOCKED) {
rcu_read_unlock();
return;
}
......@@ -572,7 +572,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
event = CNF_ACPT;
break;
case PLINK_CLOSE:
if (sta->plink_state == PLINK_ESTAB)
if (sta->plink_state == NL80211_PLINK_ESTAB)
/* Do not check for llid or plid. This does not
* follow the standard but since multiple plinks
* per sta are not supported, it is necessary in
......@@ -607,14 +607,14 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
reason = 0;
switch (sta->plink_state) {
/* spin_unlock as soon as state is updated at each case */
case PLINK_LISTEN:
case NL80211_PLINK_LISTEN:
switch (event) {
case CLS_ACPT:
mesh_plink_fsm_restart(sta);
spin_unlock_bh(&sta->lock);
break;
case OPN_ACPT:
sta->plink_state = PLINK_OPN_RCVD;
sta->plink_state = NL80211_PLINK_OPN_RCVD;
sta->plid = plid;
get_random_bytes(&llid, 2);
sta->llid = llid;
......@@ -631,7 +631,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
}
break;
case PLINK_OPN_SNT:
case NL80211_PLINK_OPN_SNT:
switch (event) {
case OPN_RJCT:
case CNF_RJCT:
......@@ -640,7 +640,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
if (!reason)
reason = cpu_to_le16(MESH_CLOSE_RCVD);
sta->reason = reason;
sta->plink_state = PLINK_HOLDING;
sta->plink_state = NL80211_PLINK_HOLDING;
if (!mod_plink_timer(sta,
dot11MeshHoldingTimeout(sdata)))
sta->ignore_plink_timer = true;
......@@ -652,7 +652,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
break;
case OPN_ACPT:
/* retry timer is left untouched */
sta->plink_state = PLINK_OPN_RCVD;
sta->plink_state = NL80211_PLINK_OPN_RCVD;
sta->plid = plid;
llid = sta->llid;
spin_unlock_bh(&sta->lock);
......@@ -660,7 +660,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
plid, 0);
break;
case CNF_ACPT:
sta->plink_state = PLINK_CNF_RCVD;
sta->plink_state = NL80211_PLINK_CNF_RCVD;
if (!mod_plink_timer(sta,
dot11MeshConfirmTimeout(sdata)))
sta->ignore_plink_timer = true;
......@@ -673,7 +673,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
}
break;
case PLINK_OPN_RCVD:
case NL80211_PLINK_OPN_RCVD:
switch (event) {
case OPN_RJCT:
case CNF_RJCT:
......@@ -682,7 +682,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
if (!reason)
reason = cpu_to_le16(MESH_CLOSE_RCVD);
sta->reason = reason;
sta->plink_state = PLINK_HOLDING;
sta->plink_state = NL80211_PLINK_HOLDING;
if (!mod_plink_timer(sta,
dot11MeshHoldingTimeout(sdata)))
sta->ignore_plink_timer = true;
......@@ -700,7 +700,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
break;
case CNF_ACPT:
del_timer(&sta->plink_timer);
sta->plink_state = PLINK_ESTAB;
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
mesh_plink_inc_estab_count(sdata);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
......@@ -713,7 +713,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
}
break;
case PLINK_CNF_RCVD:
case NL80211_PLINK_CNF_RCVD:
switch (event) {
case OPN_RJCT:
case CNF_RJCT:
......@@ -722,7 +722,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
if (!reason)
reason = cpu_to_le16(MESH_CLOSE_RCVD);
sta->reason = reason;
sta->plink_state = PLINK_HOLDING;
sta->plink_state = NL80211_PLINK_HOLDING;
if (!mod_plink_timer(sta,
dot11MeshHoldingTimeout(sdata)))
sta->ignore_plink_timer = true;
......@@ -734,7 +734,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
break;
case OPN_ACPT:
del_timer(&sta->plink_timer);
sta->plink_state = PLINK_ESTAB;
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
mesh_plink_inc_estab_count(sdata);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
......@@ -749,13 +749,13 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
}
break;
case PLINK_ESTAB:
case NL80211_PLINK_ESTAB:
switch (event) {
case CLS_ACPT:
reason = cpu_to_le16(MESH_CLOSE_RCVD);
sta->reason = reason;
deactivated = __mesh_plink_deactivate(sta);
sta->plink_state = PLINK_HOLDING;
sta->plink_state = NL80211_PLINK_HOLDING;
llid = sta->llid;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
......@@ -775,7 +775,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
break;
}
break;
case PLINK_HOLDING:
case NL80211_PLINK_HOLDING:
switch (event) {
case CLS_ACPT:
if (del_timer(&sta->plink_timer))
......
......@@ -490,7 +490,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
* establisment frame, beacon or probe, drop the frame.
*/
if (!rx->sta || sta_plink_state(rx->sta) != PLINK_ESTAB) {
if (!rx->sta || sta_plink_state(rx->sta) != NL80211_PLINK_ESTAB) {
struct ieee80211_mgmt *mgmt;
if (!ieee80211_is_mgmt(hdr->frame_control))
......
......@@ -277,7 +277,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
#ifdef CONFIG_MAC80211_MESH
sta->plink_state = PLINK_LISTEN;
sta->plink_state = NL80211_PLINK_LISTEN;
init_timer(&sta->plink_timer);
#endif
......
......@@ -318,7 +318,7 @@ struct sta_info {
u8 plink_retries;
bool ignore_plink_timer;
bool plink_timer_was_running;
enum plink_state plink_state;
enum nl80211_plink_state plink_state;
u32 plink_timeout;
struct timer_list plink_timer;
#endif
......@@ -336,12 +336,12 @@ struct sta_info {
struct ieee80211_sta sta;
};
static inline enum plink_state sta_plink_state(struct sta_info *sta)
static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta)
{
#ifdef CONFIG_MAC80211_MESH
return sta->plink_state;
#endif
return PLINK_LISTEN;
return NL80211_PLINK_LISTEN;
}
static inline void set_sta_flags(struct sta_info *sta, const u32 flags)
......
......@@ -2335,7 +2335,7 @@ 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;
params.plink_state = -1;
if (info->attrs[NL80211_ATTR_STA_AID])
return -EINVAL;
......
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