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Tue, 24 Mar 2020 19:28:22 +0000 (GMT) From: Prathyusha Nelluri To: linux-bluetooth@vger.kernel.org Cc: s.syam@samsung.com, Prathyusha N Subject: [PATCH 1/1] mesh: Handle KeyRefresh phase 1 to phase 3 Date: Wed, 25 Mar 2020 00:57:19 +0530 Message-Id: <1585078044-14974-5-git-send-email-prathyusha.n@samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1585078044-14974-1-git-send-email-prathyusha.n@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHKsWRmVeSWpSXmKPExsWy7bCmhm5UfFWcwfzpTBZzrvUxW/xfeovd YtK+DywOzB59W1YxenzeJBfAFJVjk5GamJJapJCal5yfkpmXbqvkHRzvHG9qZmCoa2hpYa6k kJeYm2qr5OIToOuWmQO0Q0mhLDGnFCgUkFhcrKRvZ1OUX1qSqpCRX1xiq5RakJJTYGhUoFec mFtcmpeul5yfa2VoYGBkClSZkJMxZcck1oJNfBUrfqxnbGB8z93FyMkhIWAice3iReYuRi4O IYHdjBKPpu9ghHA+MUqcfr+ZBcL5xijxtXcbO0zL5iMT2CASexklvh35AeV0MEksWzCPEaSK TcBY4vzNV0wgtoiAssSzfYfBbGYBe4kjP76zgNjCQHZfyxZmEJtFQFXiw4Y3YHFeAQ+J5onT mCG2yUncPNcJZnMKeEqsvXIM7D4JgZesEt2PmqGKXCSmn17PBmELS7w6vgXqVCmJz+/2QsW7 GSV2v3GFaJ7CKHHvBchFHECOvcSEF/wgJrOApsT6XfoQd/JJ9P5+AlXBK9HRJgQxRUFi1dSJ TBC2mMS66V+gNnlIvD29Aex8IYE5jBJvf2tNYJSdhTB0ASPjKkbJ1ILi3PTUYtMC47zUcuSI 2sQITjta3jsYN53zOcQowMGoxMPb8LgyTog1say4MvcQowQHs5II7+bUijgh3pTEyqrUovz4 otKc1OJDjKbA8JvILCWanA9MiXkl8YamRmZmBpYGpsYWZoZK4ryTWK/GCAmkJ5akZqemFqQW wfQxcXBKNTBOS1/whnXe1lfHgvcGvBet3fDA8sC6EuuFy9zmXxM5+94/1FeVueBFRKz7lH3P WgpCBa5GKmissY5d/GqbRiurVQp7netF1wX3hRn2bOF+cPFMUcBhNl7ZVt36xRkLQqYudl+4 tqsjN86k/sR0pXfTH4meOuF7XyixVEh9/ddAK96vIgxnpzUrsRRnJBpqMRcVJwIAlkmLYFED AAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpkluLIzCtJLcpLzFFi42LZdlhJTjc8virOYOoZLos51/qYLf4vvcVu MWnfBxYHZo++LasYPT5vkgtgiuKySUnNySxLLdK3S+DKmLJjEmvBJr6KFT/WMzYwvufuYuTk kBAwkdh8ZAJbFyMXh5DAbkaJtuMnmCESYhJvVpxgh7CFJVb+e84OUdTGJLHj13UmkASbgLHE +ZuvwGwRAWWJZ/sOg9nMAo4Sn67MYwOxhQXsJfpatoANZRFQlfiw4Q0LiM0r4CHRPHEa1DI5 iZvnOsFsTgFPibVXjjGC2EJANX86Z7JNYORbwMiwilEytaA4Nz232LDAKC+1XK84Mbe4NC9d Lzk/dxMjOGC0tHYwnjgRf4hRgINRiYdX42FlnBBrYllxZe4hRgkOZiUR3s2pFXFCvCmJlVWp RfnxRaU5qcWHGKU5WJTEeeXzj0UKCaQnlqRmp6YWpBbBZJk4OKUaGJ2t2hOzt1xW7T4fGLku 4rXLJDvpn/677p5R+VnpN3eHzSq+T9tlTRx9yiVv6TWaib3Y/rnP4vrZ1F1NSzklXwfseBDh 6rL/+6riR8+kdBQbf+3cbBDL8pZ/ybK836cvCmyJU/Kf89hx8mFGvbmLuGUyLF5K7dVZJrZ1 SzXv8qVpn2d9WaOpdlaJpTgj0VCLuag4EQDXUmc6FAIAAA== X-CMS-MailID: 20200324192823epcas5p3b25363353b98e206a50d7fd4572c9552 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20200324192823epcas5p3b25363353b98e206a50d7fd4572c9552 References: <1585078044-14974-1-git-send-email-prathyusha.n@samsung.com> Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Prathyusha N Switch to phase 3 when updated net key index is same as beacon key id. Switch beaconing key in phase 2 and phase 3. --- mesh/net.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/mesh/net.c b/mesh/net.c index ec05b6be9..3b6c8365f 100644 --- a/mesh/net.c +++ b/mesh/net.c @@ -2598,6 +2598,14 @@ static int key_refresh_phase_two(struct mesh_net *net, uint16_t idx) */ subnet->kr_phase = KEY_REFRESH_PHASE_TWO; refresh_beacon(subnet, net); + + /* send snb with updated net key id in phase 2 */ + if (net->beacon_enable) { + /* Switch beaconing key */ + net_key_beacon_disable(subnet->net_key_cur); + net_key_beacon_enable(subnet->net_key_upd); + } + queue_friend_update(net); l_queue_foreach(net->friends, frnd_kr_phase2, net); @@ -2625,6 +2633,13 @@ static int key_refresh_finish(struct mesh_net *net, uint16_t idx) l_info("Key refresh phase 3: use new keys only, discard old ones"); + /* required when skipping phase 2 */ + if (net->beacon_enable) { + /* Switch beaconing key */ + net_key_beacon_disable(subnet->net_key_cur); + net_key_beacon_enable(subnet->net_key_upd); + } + /* Switch to using new keys, discard old ones */ net_key_unref(subnet->net_key_cur); subnet->net_key_tx = subnet->net_key_cur = subnet->net_key_upd; @@ -2755,7 +2770,8 @@ static void process_beacon(void *net_ptr, void *user_data) ivi != net->iv_index || ivu != net->iv_update) update_iv_ivu_state(net, ivi, ivu); - if (kr != local_kr) + if (kr != local_kr || (subnet->kr_phase == KEY_REFRESH_PHASE_ONE && + subnet->net_key_upd == beacon_data->key_id)) update_kr_state(subnet, kr, beacon_data->key_id); net_key_beacon_refresh(beacon_data->key_id, net->iv_index, -- 2.17.1