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mac80211: update meshconf IE 

This updates the Mesh Configuration IE according to the latest
draft (3.03).
Notable changes include the simplified protocol IDs.

Signed-off-by: Rui Paulo <rpaulo@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Reviewed-by: Andrey Yurovsky <andrey@cozybit.com>
Tested-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rui Paulo 2009-11-09 23:46:39 +00:00 committed by John W. Linville
parent ac9d1a7bef
commit 3491707a07
3 changed files with 35 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/ieee80211.h
View File

@ -115,7 +115,7 @@
#define IEEE80211_MAX_SSID_LEN 32
#define IEEE80211_MAX_MESH_ID_LEN 32
#define IEEE80211_MESH_CONFIG_LEN 24
#define IEEE80211_MESH_CONFIG_LEN 7
#define IEEE80211_QOS_CTL_LEN 2
#define IEEE80211_QOS_CTL_TID_MASK 0x000F

10
net/mac80211/ieee80211_i.h
View File

@ -361,15 +361,15 @@ struct ieee80211_if_mesh {
u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
size_t mesh_id_len;
/* Active Path Selection Protocol Identifier */
u8 mesh_pp_id[4];
u8 mesh_pp_id;
/* Active Path Selection Metric Identifier */
u8 mesh_pm_id[4];
u8 mesh_pm_id;
/* Congestion Control Mode Identifier */
u8 mesh_cc_id[4];
u8 mesh_cc_id;
/* Synchronization Protocol Identifier */
u8 mesh_sp_id[4];
u8 mesh_sp_id;
/* Authentication Protocol Identifier */
u8 mesh_auth_id[4];
u8 mesh_auth_id;
/* Local mesh Destination Sequence Number */
u32 dsn;
/* Last used PREQ ID */

69
net/mac80211/mesh.c
View File

@ -15,14 +15,14 @@
#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
#define PP_OFFSET 1 /* Path Selection Protocol */
#define PM_OFFSET 5 /* Path Selection Metric */
#define CC_OFFSET 9 /* Congestion Control Mode */
#define SP_OFFSET 13 /* Synchronization Protocol */
#define AUTH_OFFSET 17 /* Authentication Protocol */
#define CAPAB_OFFSET 22
#define CAPAB_ACCEPT_PLINKS 0x80
#define CAPAB_FORWARDING 0x10
#define MESHCONF_PP_OFFSET 0 /* Path Selection Protocol */
#define MESHCONF_PM_OFFSET 1 /* Path Selection Metric */
#define MESHCONF_CC_OFFSET 2 /* Congestion Control Mode */
#define MESHCONF_SP_OFFSET 3 /* Synchronization Protocol */
#define MESHCONF_AUTH_OFFSET 4 /* Authentication Protocol */
#define MESHCONF_CAPAB_OFFSET 6
#define MESHCONF_CAPAB_ACCEPT_PLINKS 0x01
#define MESHCONF_CAPAB_FORWARDING 0x08
#define TMR_RUNNING_HK 0
#define TMR_RUNNING_MP 1
@ -85,11 +85,12 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat
*/
if (ifmsh->mesh_id_len == ie->mesh_id_len &&
memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
memcmp(ifmsh->mesh_pp_id, ie->mesh_config + PP_OFFSET, 4) == 0 &&
memcmp(ifmsh->mesh_pm_id, ie->mesh_config + PM_OFFSET, 4) == 0 &&
memcmp(ifmsh->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0 &&
memcmp(ifmsh->mesh_sp_id, ie->mesh_config + SP_OFFSET, 4) == 0 &&
memcmp(ifmsh->mesh_auth_id, ie->mesh_config + AUTH_OFFSET, 4) == 0)
(ifmsh->mesh_pp_id == *(ie->mesh_config + MESHCONF_PP_OFFSET))&&
(ifmsh->mesh_pm_id == *(ie->mesh_config + MESHCONF_PM_OFFSET))&&
(ifmsh->mesh_cc_id == *(ie->mesh_config + MESHCONF_CC_OFFSET))&&
(ifmsh->mesh_sp_id == *(ie->mesh_config + MESHCONF_SP_OFFSET))&&
(ifmsh->mesh_auth_id == *(ie->mesh_config +
MESHCONF_AUTH_OFFSET)))
return true;
return false;
@ -102,7 +103,8 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat
*/
bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie)
{
return (*(ie->mesh_config + CAPAB_OFFSET) & CAPAB_ACCEPT_PLINKS) != 0;
return (*(ie->mesh_config + MESHCONF_CAPAB_OFFSET) &
MESHCONF_CAPAB_ACCEPT_PLINKS) != 0;
}
/**
@ -128,18 +130,11 @@ void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
void mesh_ids_set_default(struct ieee80211_if_mesh *sta)
{
u8 oui[3] = {0x00, 0x0F, 0xAC};
memcpy(sta->mesh_pp_id, oui, sizeof(oui));
memcpy(sta->mesh_pm_id, oui, sizeof(oui));
memcpy(sta->mesh_cc_id, oui, sizeof(oui));
memcpy(sta->mesh_sp_id, oui, sizeof(oui));
memcpy(sta->mesh_auth_id, oui, sizeof(oui));
sta->mesh_pp_id[sizeof(oui)] = 0;
sta->mesh_pm_id[sizeof(oui)] = 0;
sta->mesh_cc_id[sizeof(oui)] = 0xff;
sta->mesh_sp_id[sizeof(oui)] = 0xff;
sta->mesh_auth_id[sizeof(oui)] = 0x0;
sta->mesh_pp_id = 0; /* HWMP */
sta->mesh_pm_id = 0; /* Airtime */
sta->mesh_cc_id = 0; /* Disabled */
sta->mesh_sp_id = 0; /* Neighbor Offset */
sta->mesh_auth_id = 0; /* Disabled */
}
int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
@ -260,28 +255,21 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
pos = skb_put(skb, 2 + IEEE80211_MESH_CONFIG_LEN);
*pos++ = WLAN_EID_MESH_CONFIG;
*pos++ = IEEE80211_MESH_CONFIG_LEN;
/* Version */
*pos++ = 1;
/* Active path selection protocol ID */
memcpy(pos, sdata->u.mesh.mesh_pp_id, 4);
pos += 4;
*pos++ = sdata->u.mesh.mesh_pp_id;
/* Active path selection metric ID */
memcpy(pos, sdata->u.mesh.mesh_pm_id, 4);
pos += 4;
*pos++ = sdata->u.mesh.mesh_pm_id;
/* Congestion control mode identifier */
memcpy(pos, sdata->u.mesh.mesh_cc_id, 4);
pos += 4;
*pos++ = sdata->u.mesh.mesh_cc_id;
/* Synchronization protocol identifier */
memcpy(pos, sdata->u.mesh.mesh_sp_id, 4);
pos += 4;
*pos++ = sdata->u.mesh.mesh_sp_id;
/* Authentication Protocol identifier */
memcpy(pos, sdata->u.mesh.mesh_auth_id, 4);
pos += 4;
*pos++ = sdata->u.mesh.mesh_auth_id;
/* Mesh Formation Info */
memset(pos, 0x00, 1);
@ -289,8 +277,9 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
/* Mesh capability */
sdata->u.mesh.accepting_plinks = mesh_plink_availables(sdata);
*pos = CAPAB_FORWARDING;
*pos++ |= sdata->u.mesh.accepting_plinks ? CAPAB_ACCEPT_PLINKS : 0x00;
*pos = MESHCONF_CAPAB_FORWARDING;
*pos++ |= sdata->u.mesh.accepting_plinks ?
MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00;
*pos++ = 0x00;
return;