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Add patches: - 170-wpa_supplicant-fix-compiling-without-IEEE8021X_EAPOL.patch Remove upstreamed: - 170-DPP-fix-memleak-of-intro.peer_key.patch - 461-driver_nl80211-use-new-parameters-during-ibss-join.patch - 800-acs-don-t-select-indoor-channel-on-outdoor-operation.patch - 992-openssl-include-rsa.patch Automatically refreshed: - 011-mesh-use-deterministic-channel-on-channel-switch.patch - 021-fix-sta-add-after-previous-connection.patch - 022-hostapd-fix-use-of-uninitialized-stack-variables.patch - 030-driver_nl80211-rewrite-neigh-code-to-not-depend-on-l.patch - 040-mesh-allow-processing-authentication-frames-in-block.patch - 050-build_fix.patch - 110-mbedtls-TLS-crypto-option-initial-port.patch - 120-mbedtls-fips186_2_prf.patch - 140-tests-Makefile-make-run-tests-with-CONFIG_TLS.patch - 150-add-NULL-checks-encountered-during-tests-hwsim.patch - 160-dpp_pkex-EC-point-mul-w-value-prime.patch - 200-multicall.patch - 300-noscan.patch - 310-rescan_immediately.patch - 330-nl80211_fix_set_freq.patch - 341-mesh-ctrl-iface-channel-switch.patch - 360-ctrl_iface_reload.patch - 381-hostapd_cli_UNKNOWN-COMMAND.patch - 390-wpa_ie_cap_workaround.patch - 410-limit_debug_messages.patch - 420-indicate-features.patch - 430-hostapd_cli_ifdef.patch - 450-scan_wait.patch - 460-wpa_supplicant-add-new-config-params-to-be-used-with.patch - 463-add-mcast_rate-to-11s.patch - 465-hostapd-config-support-random-BSS-color.patch - 500-lto-jobserver-support.patch - 590-rrm-wnm-statistics.patch - 710-vlan_no_bridge.patch - 720-iface_max_num_sta.patch - 730-ft_iface.patch - 750-qos_map_set_without_interworking.patch - 751-qos_map_ignore_when_unsupported.patch - 760-dynamic_own_ip.patch - 761-shared_das_port.patch - 990-ctrl-make-WNM_AP-functions-dependant-on-CONFIG_AP.patch Manually refresh: - 010-mesh-Allow-DFS-channels-to-be-selected-if-dfs-is-ena.patch - 301-mesh-noscan.patch - 340-reload_freq_change.patch - 350-nl80211_del_beacon_bss.patch - 370-ap_sta_support.patch - 380-disable_ctrl_iface_mib.patch - 464-fix-mesh-obss-check.patch - 470-survey_data_fallback.patch - 600-ubus_support.patch - 700-wifi-reload.patch - 711-wds_bridge_force.patch - 740-snoop_iface.patch Tested-by: Packet Please <pktpls@systemli.org> [Fritzbox 4040 (ipq40xx), EAP225-Outdoor (ath79); 802.11s, WPA3 OWE, and WPA3 PSK] Tested-by: Andrew Sim <andrewsimz@gmail.com> [mediatek/filogic] Signed-off-by: Nick Hainke <vincent@systemli.org>
82 lines
2.5 KiB
Diff
82 lines
2.5 KiB
Diff
From fc8ea40f6130ac18d9c66797de2cf1d5af55d496 Mon Sep 17 00:00:00 2001
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From: Markus Theil <markus.theil@tu-ilmenau.de>
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Date: Tue, 30 Jun 2020 14:19:07 +0200
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Subject: [PATCH 19/19] mesh: use deterministic channel on channel switch
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This patch uses a deterministic channel on DFS channel switch
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in mesh networks. Otherwise, when switching to a usable but not
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available channel, no CSA can be sent and a random channel is choosen
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without notification of other nodes. It is then quite likely, that
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the mesh network gets disconnected.
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Fix this by using a deterministic number, based on the sha256 hash
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of the mesh ID, in order to use at least a different number in each
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mesh network.
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Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
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---
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src/ap/dfs.c | 20 +++++++++++++++++++-
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src/drivers/driver_nl80211.c | 4 ++++
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2 files changed, 23 insertions(+), 1 deletion(-)
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--- a/src/ap/dfs.c
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+++ b/src/ap/dfs.c
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@@ -17,6 +17,7 @@
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#include "ap_drv_ops.h"
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#include "drivers/driver.h"
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#include "dfs.h"
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+#include "crypto/crypto.h"
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enum dfs_channel_type {
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@@ -521,9 +522,14 @@ dfs_get_valid_channel(struct hostapd_ifa
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int num_available_chandefs;
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int chan_idx, chan_idx2;
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int sec_chan_idx_80p80 = -1;
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+ bool is_mesh = false;
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int i;
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u32 _rand;
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+#ifdef CONFIG_MESH
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+ is_mesh = iface->mconf;
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+#endif
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+
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wpa_printf(MSG_DEBUG, "DFS: Selecting random channel");
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*secondary_channel = 0;
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*oper_centr_freq_seg0_idx = 0;
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@@ -543,8 +549,20 @@ dfs_get_valid_channel(struct hostapd_ifa
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if (num_available_chandefs == 0)
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return NULL;
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- if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0)
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+ /* try to use deterministic channel in mesh, so that both sides
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+ * have a chance to switch to the same channel */
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+ if (is_mesh) {
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+#ifdef CONFIG_MESH
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+ u64 hash[4];
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+ const u8 *meshid[1] = { &iface->mconf->meshid[0] };
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+ const size_t meshid_len = iface->mconf->meshid_len;
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+
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+ sha256_vector(1, meshid, &meshid_len, (u8 *)&hash[0]);
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+ _rand = hash[0] + hash[1] + hash[2] + hash[3];
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+#endif
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+ } else if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0)
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return NULL;
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+
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chan_idx = _rand % num_available_chandefs;
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dfs_find_channel(iface, &chan, chan_idx, type);
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if (!chan) {
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--- a/src/drivers/driver_nl80211.c
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+++ b/src/drivers/driver_nl80211.c
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@@ -10739,6 +10739,10 @@ static int nl80211_switch_channel(void *
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if (ret)
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goto error;
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+ if (drv->nlmode == NL80211_IFTYPE_MESH_POINT) {
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+ nla_put_flag(msg, NL80211_ATTR_HANDLE_DFS);
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+ }
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+
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/* beacon_csa params */
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beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
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if (!beacon_csa)
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