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{nl,cfg,mac}80211: let userspace set RANN interval 

Allow userspace to set Root Announcement Interval for our mesh
interface. Also, RANN interval is now in proper units of TUs.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Javier Cardona 2011-08-09 16:45:10 -07:00 committed by John W. Linville
parent 699403dbd4
commit 0507e159a2
9 changed files with 27 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/nl80211.h
View File

@ -1861,6 +1861,9 @@ enum nl80211_mntr_flags {
* @NL80211_MESHCONF_ELEMENT_TTL: specifies the value of TTL field set at a
* source mesh point for path selection elements.
*
* @NL80211_MESHCONF_HWMP_RANN_INTERVAL: The interval of time (in TUs) between
* root announcements are transmitted.
*
* @NL80211_MESHCONF_ATTR_MAX: highest possible mesh configuration attribute
*
* @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use
@ -1882,6 +1885,7 @@ enum nl80211_meshconf_params {
NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
NL80211_MESHCONF_HWMP_ROOTMODE,
NL80211_MESHCONF_ELEMENT_TTL,
NL80211_MESHCONF_HWMP_RANN_INTERVAL,
/* keep last */
__NL80211_MESHCONF_ATTR_AFTER_LAST,

1
include/net/cfg80211.h
View File

@ -755,6 +755,7 @@ struct mesh_config {
u16 dot11MeshHWMPpreqMinInterval;
u16 dot11MeshHWMPnetDiameterTraversalTime;
u8 dot11MeshHWMPRootMode;
u16 dot11MeshHWMPRannInterval;
};
/**

4
net/mac80211/cfg.c
View File

@ -1137,6 +1137,10 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
ieee80211_mesh_root_setup(ifmsh);
}
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
conf->dot11MeshHWMPRannInterval =
nconf->dot11MeshHWMPRannInterval;
}
return 0;
}

3
net/mac80211/debugfs_netdev.c
View File

@ -372,6 +372,8 @@ IEEE80211_IF_FILE(min_discovery_timeout,
u.mesh.mshcfg.min_discovery_timeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
#endif
@ -486,6 +488,7 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
MESHPARAMS_ADD(path_refresh_time);
MESHPARAMS_ADD(min_discovery_timeout);
MESHPARAMS_ADD(dot11MeshHWMPRootMode);
MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
#undef MESHPARAMS_ADD
}
#endif

3
net/mac80211/mesh.c
View File

@ -537,7 +537,8 @@ static void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata)
mesh_path_tx_root_frame(sdata);
mod_timer(&ifmsh->mesh_path_root_timer,
round_jiffies(jiffies + IEEE80211_MESH_RANN_INTERVAL));
round_jiffies(jiffies +
usecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPRannInterval * 1024)));
}
#ifdef CONFIG_PM

1
net/mac80211/mesh.h
View File

@ -175,7 +175,6 @@ struct mesh_rmc {
#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
#define IEEE80211_MESH_RANN_INTERVAL (1 * HZ)
#define MESH_DEFAULT_BEACON_INTERVAL 1000 /* in 1024 us units */

8
net/mac80211/mesh_hwmp.c
View File

@ -695,7 +695,7 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
u8 ttl, flags, hopcount;
u8 *orig_addr;
u32 orig_sn, metric;
u32 interval = cpu_to_le32(IEEE80211_MESH_RANN_INTERVAL);
u32 interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval;
bool root_is_gate;
ttl = rann->rann_ttl;
@ -743,7 +743,7 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr,
cpu_to_le32(orig_sn),
0, NULL, 0, broadcast_addr,
hopcount, ttl, interval,
hopcount, ttl, cpu_to_le32(interval),
cpu_to_le32(metric + mpath->metric),
0, sdata);
mpath->sn = orig_sn;
@ -1044,11 +1044,11 @@ void
mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
u32 interval = cpu_to_le32(IEEE80211_MESH_RANN_INTERVAL);
u32 interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval;
mesh_path_sel_frame_tx(MPATH_RANN, 0, sdata->vif.addr,
cpu_to_le32(++ifmsh->sn),
0, NULL, 0, broadcast_addr,
0, sdata->u.mesh.mshcfg.element_ttl,
interval, 0, 0, sdata);
cpu_to_le32(interval), 0, 0, sdata);
}

2
net/wireless/mesh.c
View File

@ -12,6 +12,7 @@
#define MESH_HOLD_T 100
#define MESH_PATH_TIMEOUT 5000
#define MESH_RANN_INTERVAL 5000
/*
* Minimum interval between two consecutive PREQs originated by the same
@ -49,6 +50,7 @@ const struct mesh_config default_mesh_config = {
.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
.path_refresh_time = MESH_PATH_REFRESH_TIME,
.min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
.dot11MeshHWMPRannInterval = MESH_RANN_INTERVAL,
};
const struct mesh_setup default_mesh_setup = {

7
net/wireless/nl80211.c
View File

@ -3035,6 +3035,8 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
cur_params.dot11MeshHWMPnetDiameterTraversalTime);
NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
cur_params.dot11MeshHWMPRootMode);
NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
cur_params.dot11MeshHWMPRannInterval);
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
return genlmsg_reply(msg, info);
@ -3063,6 +3065,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A
[NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
[NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
[NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
[NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
};
static const struct nla_policy
@ -3141,6 +3144,10 @@ do {\
dot11MeshHWMPRootMode, mask,
NL80211_MESHCONF_HWMP_ROOTMODE,
nla_get_u8);
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
dot11MeshHWMPRannInterval, mask,
NL80211_MESHCONF_HWMP_RANN_INTERVAL,
nla_get_u16);
if (mask_out)
*mask_out = mask;