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Bluetooth: Consolidate code around sk_alloc into a helper function

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This consolidates code around sk_alloc into bt_sock_alloc which does
take care of common initialization.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Luiz Augusto von Dentz 2023-05-25 16:46:41 -07:00
parent 6b42f04e24
commit 6bfa273e53
8 changed files with 32 additions and 54 deletions
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2
include/net/bluetooth/bluetooth.h
View file

@ -400,6 +400,8 @@ int bt_sock_register(int proto, const struct net_proto_family *ops);
void bt_sock_unregister(int proto);
void bt_sock_link(struct bt_sock_list *l, struct sock *s);
void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
struct proto *prot, int proto, gfp_t prio, int kern);
int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
int flags);
int bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,

21
net/bluetooth/af_bluetooth.c
View file

@ -140,6 +140,27 @@ static int bt_sock_create(struct net *net, struct socket *sock, int proto,
return err;
}
struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
struct proto *prot, int proto, gfp_t prio, int kern)
{
struct sock *sk;
sk = sk_alloc(net, PF_BLUETOOTH, prio, prot, kern);
if (!sk)
return NULL;
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
return sk;
}
EXPORT_SYMBOL(bt_sock_alloc);
void bt_sock_link(struct bt_sock_list *l, struct sock *sk)
{
write_lock(&l->lock);

10
net/bluetooth/bnep/sock.c
View file

@ -205,21 +205,13 @@ static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto, kern);
sk = bt_sock_alloc(net, sock, &bnep_proto, protocol, GFP_ATOMIC, kern);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sock->ops = &bnep_sock_ops;
sock->state = SS_UNCONNECTED;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = protocol;
sk->sk_state = BT_OPEN;
bt_sock_link(&bnep_sk_list, sk);
return 0;
}

10
net/bluetooth/hci_sock.c
View file

@ -2143,18 +2143,12 @@ static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
sock->ops = &hci_sock_ops;
sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto, kern);
sk = bt_sock_alloc(net, sock, &hci_sk_proto, protocol, GFP_ATOMIC,
kern);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = protocol;
sock->state = SS_UNCONNECTED;
sk->sk_state = BT_OPEN;
sk->sk_destruct = hci_sock_destruct;
bt_sock_link(&hci_sk_list, sk);

10
net/bluetooth/iso.c
View file

@ -738,21 +738,13 @@ static struct sock *iso_sock_alloc(struct net *net, struct socket *sock,
{
struct sock *sk;
sk = sk_alloc(net, PF_BLUETOOTH, prio, &iso_proto, kern);
sk = bt_sock_alloc(net, sock, &iso_proto, proto, prio, kern);
if (!sk)
return NULL;
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
sk->sk_destruct = iso_sock_destruct;
sk->sk_sndtimeo = ISO_CONN_TIMEOUT;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
/* Set address type as public as default src address is BDADDR_ANY */
iso_pi(sk)->src_type = BDADDR_LE_PUBLIC;

10
net/bluetooth/l2cap_sock.c
View file

@ -1858,21 +1858,13 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
struct sock *sk;
struct l2cap_chan *chan;
sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto, kern);
sk = bt_sock_alloc(net, sock, &l2cap_proto, proto, prio, kern);
if (!sk)
return NULL;
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
sk->sk_destruct = l2cap_sock_destruct;
sk->sk_sndtimeo = L2CAP_CONN_TIMEOUT;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
chan = l2cap_chan_create();
if (!chan) {
sk_free(sk);

13
net/bluetooth/rfcomm/sock.c
View file

@ -268,18 +268,16 @@ static struct proto rfcomm_proto = {
.obj_size = sizeof(struct rfcomm_pinfo)
};
static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio, int kern)
static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock,
int proto, gfp_t prio, int kern)
{
struct rfcomm_dlc *d;
struct sock *sk;
sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto, kern);
sk = bt_sock_alloc(net, sock, &rfcomm_proto, proto, prio, kern);
if (!sk)
return NULL;
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
d = rfcomm_dlc_alloc(prio);
if (!d) {
sk_free(sk);
@ -298,11 +296,6 @@ static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int
sk->sk_sndbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
sk->sk_rcvbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
bt_sock_link(&rfcomm_sk_list, sk);
BT_DBG("sk %p", sk);

10
net/bluetooth/sco.c
View file

@ -504,21 +504,13 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock,
{
struct sock *sk;
sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto, kern);
sk = bt_sock_alloc(net, sock, &sco_proto, proto, prio, kern);
if (!sk)
return NULL;
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
sk->sk_destruct = sco_sock_destruct;
sk->sk_sndtimeo = SCO_CONN_TIMEOUT;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;
sco_pi(sk)->codec.id = BT_CODEC_CVSD;
sco_pi(sk)->codec.cid = 0xffff;