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[107.146.107.67]) by smtp.gmail.com with ESMTPSA id a1e0cc1a2514c-826dcefcc28sm2445485241.10.2024.07.24.09.06.12 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jul 2024 09:06:13 -0700 (PDT) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH BlueZ v3 3/3] shared/bap: Fix bt_bap_select with multiple lpacs Date: Wed, 24 Jul 2024 12:06:08 -0400 Message-ID: <20240724160608.2779282-3-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240724160608.2779282-1-luiz.dentz@gmail.com> References: <20240724160608.2779282-1-luiz.dentz@gmail.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Luiz Augusto von Dentz When there are multiple local PAC records of the same codec with different locations only the first was consider, also bt_bap_select would stop doing location matching early if the location don't match without considering there could be more remote channels. --- src/shared/bap.c | 37 +++++++++++++++++++++++++++---------- 1 file changed, 27 insertions(+), 10 deletions(-) diff --git a/src/shared/bap.c b/src/shared/bap.c index 4bec51011469..499e740c9162 100644 --- a/src/shared/bap.c +++ b/src/shared/bap.c @@ -3249,25 +3249,32 @@ static void *ltv_merge(struct iovec *data, struct iovec *cont) return util_iov_append(data, cont->iov_base, cont->iov_len); } -static void bap_pac_foreach_channel(size_t i, uint8_t l, uint8_t t, uint8_t *v, - void *user_data) +static void bap_pac_chan_add(struct bt_bap_pac *pac, uint8_t count, + uint32_t location) { - struct bt_bap_pac *pac = user_data; struct bt_bap_chan *chan; - if (!v) - return; - if (!pac->channels) pac->channels = queue_new(); chan = new0(struct bt_bap_chan, 1); - chan->count = *v; - chan->location = bt_bap_pac_get_locations(pac) ? : pac->qos.location; + chan->count = count; + chan->location = location; queue_push_tail(pac->channels, chan); } +static void bap_pac_foreach_channel(size_t i, uint8_t l, uint8_t t, uint8_t *v, + void *user_data) +{ + struct bt_bap_pac *pac = user_data; + + if (!v) + return; + + bap_pac_chan_add(pac, *v, bt_bap_pac_get_locations(pac)); +} + static void bap_pac_update_channels(struct bt_bap_pac *pac, struct iovec *data) { uint8_t type = 0x03; @@ -3277,6 +3284,13 @@ static void bap_pac_update_channels(struct bt_bap_pac *pac, struct iovec *data) util_ltv_foreach(data->iov_base, data->iov_len, &type, bap_pac_foreach_channel, pac); + + /* If record didn't set a channel count but set a location use that as + * channel count. + */ + if (queue_isempty(pac->channels) && pac->qos.location) + bap_pac_chan_add(pac, pac->qos.location, pac->qos.location); + } static void bap_pac_merge(struct bt_bap_pac *pac, struct iovec *data, @@ -3607,6 +3621,9 @@ uint32_t bt_bap_pac_get_locations(struct bt_bap_pac *pac) if (!pac) return 0; + if (pac->qos.location) + return pac->qos.location; + pacs = pac->bdb->pacs; switch (pac->type) { @@ -5411,7 +5428,7 @@ int bt_bap_select(struct bt_bap_pac *lpac, struct bt_bap_pac *rpac, /* Try matching the channel location */ if (!(map.location & rc->location)) - break; + continue; lpac->ops->select(lpac, rpac, map.location & rc->location, &rpac->qos, @@ -5420,7 +5437,7 @@ int bt_bap_select(struct bt_bap_pac *lpac, struct bt_bap_pac *rpac, selected++; /* Check if there are any channels left to select */ - map.count &= ~(map.count & rc->count); + map.count &= ~(map.count & rc->count); /* Check if there are any locations left to select */ map.location &= ~(map.location & rc->location);