From owner-svn-src-all@freebsd.org Tue Nov 15 01:47:38 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9D514C41016; Tue, 15 Nov 2016 01:47:38 +0000 (UTC) (envelope-from adrian@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 78B161014; Tue, 15 Nov 2016 01:47:38 +0000 (UTC) (envelope-from adrian@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id uAF1lbid095222; Tue, 15 Nov 2016 01:47:37 GMT (envelope-from adrian@FreeBSD.org) Received: (from adrian@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uAF1lb3f095221; Tue, 15 Nov 2016 01:47:37 GMT (envelope-from adrian@FreeBSD.org) Message-Id: <201611150147.uAF1lb3f095221@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: adrian set sender to adrian@FreeBSD.org using -f From: Adrian Chadd Date: Tue, 15 Nov 2016 01:47:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r308663 - head/sys/net80211 X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Nov 2016 01:47:38 -0000 Author: adrian Date: Tue Nov 15 01:47:37 2016 New Revision: 308663 URL: https://svnweb.freebsd.org/changeset/base/308663 Log: [net80211] announce 11n capabilities in probe requests in IBSS mode. The 802.11-2012 specification notes that a subset of IEs should be present in IBSS probe requests. This is what (initially) allows nodes to discover that other nodes are 11n capable. Notably - HTCAP, but not HTINFO. This isn't everything required to reliably enable 11n between net80211 peers; there's more work to come. Tested: * AR9380, IBSS+11n mode Modified: head/sys/net80211/ieee80211_output.c Modified: head/sys/net80211/ieee80211_output.c ============================================================================== --- head/sys/net80211/ieee80211_output.c Tue Nov 15 01:41:45 2016 (r308662) +++ head/sys/net80211/ieee80211_output.c Tue Nov 15 01:47:37 2016 (r308663) @@ -2074,6 +2074,7 @@ ieee80211_send_probereq(struct ieee80211 { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; + struct ieee80211_node *bss; const struct ieee80211_txparam *tp; struct ieee80211_bpf_params params; const struct ieee80211_rateset *rs; @@ -2081,10 +2082,13 @@ ieee80211_send_probereq(struct ieee80211 uint8_t *frm; int ret; + bss = ieee80211_ref_node(vap->iv_bss); + if (vap->iv_state == IEEE80211_S_CAC) { IEEE80211_NOTE(vap, IEEE80211_MSG_OUTPUT, ni, "block %s frame in CAC state", "probe request"); vap->iv_stats.is_tx_badstate++; + ieee80211_free_node(bss); return EIO; /* XXX */ } @@ -2106,6 +2110,7 @@ ieee80211_send_probereq(struct ieee80211 * [tlv] supported rates * [tlv] RSN (optional) * [tlv] extended supported rates + * [tlv] HT cap (optional) * [tlv] WPA (optional) * [tlv] user-specified ie's */ @@ -2113,6 +2118,8 @@ ieee80211_send_probereq(struct ieee80211 ic->ic_headroom + sizeof(struct ieee80211_frame), 2 + IEEE80211_NWID_LEN + 2 + IEEE80211_RATE_SIZE + + sizeof(struct ieee80211_ie_htcap) + + sizeof(struct ieee80211_ie_htinfo) + sizeof(struct ieee80211_ie_wpa) + 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE) + sizeof(struct ieee80211_ie_wpa) @@ -2122,6 +2129,7 @@ ieee80211_send_probereq(struct ieee80211 if (m == NULL) { vap->iv_stats.is_tx_nobuf++; ieee80211_free_node(ni); + ieee80211_free_node(bss); return ENOMEM; } @@ -2130,6 +2138,27 @@ ieee80211_send_probereq(struct ieee80211 frm = ieee80211_add_rates(frm, rs); frm = ieee80211_add_rsn(frm, vap); frm = ieee80211_add_xrates(frm, rs); + + /* + * Note: we can't use bss; we don't have one yet. + * + * So, we should announce our capabilities + * in this channel mode (2g/5g), not the + * channel details itself. + */ + if ((vap->iv_opmode == IEEE80211_M_IBSS) && + (vap->iv_flags_ht & IEEE80211_FHT_HT)) { + struct ieee80211_channel *c; + + /* + * Get the HT channel that we should try upgrading to. + * If we can do 40MHz then this'll upgrade it appropriately. + */ + c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, + vap->iv_flags_ht); + frm = ieee80211_add_htcap_ch(frm, vap, c); + } + frm = ieee80211_add_wpa(frm, vap); if (vap->iv_appie_probereq != NULL) frm = add_appie(frm, vap->iv_appie_probereq); @@ -2141,6 +2170,7 @@ ieee80211_send_probereq(struct ieee80211 if (m == NULL) { /* NB: cannot happen */ ieee80211_free_node(ni); + ieee80211_free_node(bss); return ENOMEM; } @@ -2157,8 +2187,11 @@ ieee80211_send_probereq(struct ieee80211 IEEE80211_NODE_STAT(ni, tx_mgmt); IEEE80211_DPRINTF(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_DUMPPKTS, - "send probe req on channel %u bssid %s ssid \"%.*s\"\n", - ieee80211_chan2ieee(ic, ic->ic_curchan), ether_sprintf(bssid), + "send probe req on channel %u bssid %s sa %6D da %6D ssid \"%.*s\"\n", + ieee80211_chan2ieee(ic, ic->ic_curchan), + ether_sprintf(bssid), + sa, ":", + da, ":", ssidlen, ssid); memset(¶ms, 0, sizeof(params)); @@ -2173,6 +2206,7 @@ ieee80211_send_probereq(struct ieee80211 params.ibp_power = ni->ni_txpower; ret = ieee80211_raw_output(vap, ni, m, ¶ms); IEEE80211_TX_UNLOCK(ic); + ieee80211_free_node(bss); return (ret); }