Return-path: Received: from wa-out-1112.google.com ([209.85.146.177]:42504 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753125AbZHTQdo (ORCPT ); Thu, 20 Aug 2009 12:33:44 -0400 Received: by wa-out-1112.google.com with SMTP id j5so3657wah.21 for ; Thu, 20 Aug 2009 09:33:46 -0700 (PDT) From: Javier Cardona To: linux-wireless Cc: Javier Cardona , andrey@cozybit.com, johannes@sipsolutions.net, linville@tuxdriver.com, devel@lists.open80211s.org Subject: [PATCH] mac80211: Update mesh config IE to 11s draft 3.02 Date: Thu, 20 Aug 2009 09:21:45 -0700 Message-Id: <1250785305-24118-1-git-send-email-javier@cozybit.com> In-Reply-To: <> References: <> Sender: linux-wireless-owner@vger.kernel.org List-ID: The mesh config information element has changed significantly since draft 1.08 This patch brings it up to date. Thanks to Sam Leffler and Rui Paulo for identifying this. Signed-off-by: Javier Cardona --- include/linux/ieee80211.h | 2 +- net/mac80211/ieee80211_i.h | 4 +++ net/mac80211/mesh.c | 49 ++++++++++++++++++++++++++++++------------- 3 files changed, 39 insertions(+), 16 deletions(-) diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 21556a2..52e15e0 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -115,7 +115,7 @@ #define IEEE80211_MAX_SSID_LEN 32 #define IEEE80211_MAX_MESH_ID_LEN 32 -#define IEEE80211_MESH_CONFIG_LEN 19 +#define IEEE80211_MESH_CONFIG_LEN 24 #define IEEE80211_QOS_CTL_LEN 2 #define IEEE80211_QOS_CTL_TID_MASK 0x000F diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 93e618a..455cc7a 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -367,6 +367,10 @@ struct ieee80211_if_mesh { u8 mesh_pm_id[4]; /* Congestion Control Mode Identifier */ u8 mesh_cc_id[4]; + /* Synchronization Protocol Identifier */ + u8 mesh_sp_id[4]; + /* Authentication Protocol Identifier */ + u8 mesh_auth_id[4]; /* Local mesh Destination Sequence Number */ u32 dsn; /* Last used PREQ ID */ diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 3185e18..f7364e5 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -18,8 +18,11 @@ #define PP_OFFSET 1 /* Path Selection Protocol */ #define PM_OFFSET 5 /* Path Selection Metric */ #define CC_OFFSET 9 /* Congestion Control Mode */ -#define CAPAB_OFFSET 17 -#define ACCEPT_PLINKS 0x80 +#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 TMR_RUNNING_HK 0 #define TMR_RUNNING_MP 1 @@ -84,7 +87,9 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat 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_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) return true; return false; @@ -97,7 +102,7 @@ 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) & ACCEPT_PLINKS) != 0; + return (*(ie->mesh_config + CAPAB_OFFSET) & CAPAB_ACCEPT_PLINKS) != 0; } /** @@ -123,11 +128,18 @@ void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) void mesh_ids_set_default(struct ieee80211_if_mesh *sta) { - u8 def_id[4] = {0x00, 0x0F, 0xAC, 0xff}; - - memcpy(sta->mesh_pp_id, def_id, 4); - memcpy(sta->mesh_pm_id, def_id, 4); - memcpy(sta->mesh_cc_id, def_id, 4); + 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; } int mesh_rmc_init(struct ieee80211_sub_if_data *sdata) @@ -245,7 +257,7 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) if (sdata->u.mesh.mesh_id_len) memcpy(pos, sdata->u.mesh.mesh_id, sdata->u.mesh.mesh_id_len); - pos = skb_put(skb, 21); + pos = skb_put(skb, 2 + IEEE80211_MESH_CONFIG_LEN); *pos++ = WLAN_EID_MESH_CONFIG; *pos++ = IEEE80211_MESH_CONFIG_LEN; /* Version */ @@ -263,15 +275,22 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) memcpy(pos, sdata->u.mesh.mesh_cc_id, 4); pos += 4; - /* Channel precedence: - * Not running simple channel unification protocol - */ - memset(pos, 0x00, 4); + /* Synchronization protocol identifier */ + memcpy(pos, sdata->u.mesh.mesh_sp_id, 4); pos += 4; + /* Authentication Protocol identifier */ + memcpy(pos, sdata->u.mesh.mesh_auth_id, 4); + pos += 4; + + /* Mesh Formation Info */ + memset(pos, 0x00, 1); + pos += 1; + /* Mesh capability */ sdata->u.mesh.accepting_plinks = mesh_plink_availables(sdata); - *pos++ = sdata->u.mesh.accepting_plinks ? ACCEPT_PLINKS : 0x00; + *pos = CAPAB_FORWARDING; + *pos++ |= sdata->u.mesh.accepting_plinks ? CAPAB_ACCEPT_PLINKS : 0x00; *pos++ = 0x00; return; -- 1.5.4.3