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Since the coexistence of BIS sink and CIS sink is determined by application-level logic, it may be difficult to reproduce this scenario using iso-test. Do you have any suggestions on how to simulate or test this case more effectively? > >> dump sock: >> sk 000000001977ef51 state 6 >> src 10:a5:62:31:05:cf dst 00:00:00:00:00:00 >> sk 0000000031d28700 state 7 >> src 10:a5:62:31:05:cf dst00:00:00:00:00:00 >> sk 00000000613af00e state 4 # listen sock of bis >> src 10:a5:62:31:05:cf dst 54:00:00:d4:99:30 >> sk 000000001710468c state 9 >> src 10:a5:62:31:05:cf dst 54:00:00:d4:99:30 >> sk 000000005d97dfde state 4 #listen sock of cis >> src 10:a5:62:31:05:cf dst 00:00:00:00:00:00 >> >> To locate the CIS socket correctly, check both the BT_LISTEN >> state and whether dst addr is BDADDR_ANY. >> >> Link: https://github.com/bluez/bluez/issues/1224 >> >> Signed-off-by: Yang Li >> --- >> net/bluetooth/iso.c | 9 +++++++-- >> 1 file changed, 7 insertions(+), 2 deletions(-) >> >> diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c >> index eaffd25570e3..9a4dea03af8c 100644 >> --- a/net/bluetooth/iso.c >> +++ b/net/bluetooth/iso.c >> @@ -1919,6 +1919,11 @@ static bool iso_match_pa_sync_flag(struct sock *sk, void *data) >> return test_bit(BT_SK_PA_SYNC, &iso_pi(sk)->flags); >> } >> >> +static bool iso_match_dst(struct sock *sk, void *data) >> +{ >> + return !bacmp(&iso_pi(sk)->dst, (bdaddr_t *)data); >> +} >> + >> static void iso_conn_ready(struct iso_conn *conn) >> { >> struct sock *parent = NULL; >> @@ -1981,7 +1986,7 @@ static void iso_conn_ready(struct iso_conn *conn) >> >> if (!parent) >> parent = iso_get_sock(&hcon->src, BDADDR_ANY, >> - BT_LISTEN, NULL, NULL); >> + BT_LISTEN, iso_match_dst, BDADDR_ANY); >> >> if (!parent) >> return; >> @@ -2220,7 +2225,7 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) >> } >> } else { >> sk = iso_get_sock(&hdev->bdaddr, BDADDR_ANY, >> - BT_LISTEN, NULL, NULL); >> + BT_LISTEN, iso_match_dst, BDADDR_ANY); > Perhaps we should add helper function that wrap the iso_get_sock (e.g. > iso_get_sock_cis and iso_get_sock_bis) to make it clearer what is the > expected socket type, also if the hcon has been set perhaps that > should be matched as well with CIS_LINK/BIS_LINK, or perhaps we > introduce a socket type to differentiate since the use of the address > can make the logic a little confusing when the socket types are mixed > together. > > Now looking at the source code perhaps we can have a separate list for > cis and bis sockets instead of global iso_sk_list (e.g. cis_sk_list > and bis_sk_list), that way we don't need a type and there is no risk > of confusing the sockets since they would never be in the same list. Alright, I will give it a try. > >> } >> >> done: >> >> --- >> base-commit: 9c533991fe15be60ad9f9a7629c25dbc5b09788d >> change-id: 20250731-bis_cis_coexist-717a442d5c42 >> >> Best regards, >> -- >> Yang Li >> >> > > -- > Luiz Augusto von Dentz