diff options
| -rw-r--r-- | include/net/bluetooth/a2mp.h | 10 | ||||
| -rw-r--r-- | net/bluetooth/a2mp.c | 29 |
2 files changed, 39 insertions, 0 deletions
diff --git a/include/net/bluetooth/a2mp.h b/include/net/bluetooth/a2mp.h index 6a76e0a0705e..316c1c803676 100644 --- a/include/net/bluetooth/a2mp.h +++ b/include/net/bluetooth/a2mp.h @@ -19,12 +19,18 @@ #define A2MP_FEAT_EXT 0x8000 +enum amp_mgr_state { + READ_LOC_AMP_INFO, +}; + struct amp_mgr { + struct list_head list; struct l2cap_conn *l2cap_conn; struct l2cap_chan *a2mp_chan; struct kref kref; __u8 ident; __u8 handle; + enum amp_mgr_state state; unsigned long flags; }; @@ -118,9 +124,13 @@ struct a2mp_physlink_rsp { #define A2MP_STATUS_PHYS_LINK_EXISTS 0x05 #define A2MP_STATUS_SECURITY_VIOLATION 0x06 +extern struct list_head amp_mgr_list; +extern struct mutex amp_mgr_list_lock; + void amp_mgr_get(struct amp_mgr *mgr); int amp_mgr_put(struct amp_mgr *mgr); struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, struct sk_buff *skb); +struct amp_mgr *amp_mgr_lookup_by_state(u8 state); #endif /* __A2MP_H */ diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c index 0760d1fed6f0..3f930608ecfa 100644 --- a/net/bluetooth/a2mp.c +++ b/net/bluetooth/a2mp.c @@ -17,6 +17,10 @@ #include <net/bluetooth/l2cap.h> #include <net/bluetooth/a2mp.h> +/* Global AMP Manager list */ +LIST_HEAD(amp_mgr_list); +DEFINE_MUTEX(amp_mgr_list_lock); + /* A2MP build & send command helper functions */ static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data) { @@ -516,6 +520,10 @@ static void amp_mgr_destroy(struct kref *kref) BT_DBG("mgr %p", mgr); + mutex_lock(&_mgr_list_lock); + list_del(&mgr->list); + mutex_unlock(&_mgr_list_lock); + kfree(mgr); } @@ -552,6 +560,10 @@ static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn) kref_init(&mgr->kref); + mutex_lock(&_mgr_list_lock); + list_add(&mgr->list, &_mgr_list); + mutex_unlock(&_mgr_list_lock); + return mgr; } @@ -570,3 +582,20 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, return mgr->a2mp_chan; } + +struct amp_mgr *amp_mgr_lookup_by_state(u8 state) +{ + struct amp_mgr *mgr; + + mutex_lock(&_mgr_list_lock); + list_for_each_entry(mgr, &_mgr_list, list) { + if (mgr->state == state) { + amp_mgr_get(mgr); + mutex_unlock(&_mgr_list_lock); + return mgr; + } + } + mutex_unlock(&_mgr_list_lock); + + return NULL; +} |