45 #define KSMBD_TRANS(t)	(&(t)->transport)  argument
46 #define TCP_TRANS(t)	((struct tcp_transport *)container_of(t, \  argument
76 	struct tcp_transport *t;  in alloc_transport()  local
79 	t = kzalloc(sizeof(*t), GFP_KERNEL);  in alloc_transport()
80 	if (!t)  in alloc_transport()
82 	t->sock = client_sk;  in alloc_transport()
86 		kfree(t);  in alloc_transport()
90 	conn->transport = KSMBD_TRANS(t);  in alloc_transport()
91 	KSMBD_TRANS(t)->conn = conn;  in alloc_transport()
92 	KSMBD_TRANS(t)->ops = &ksmbd_tcp_transport_ops;  in alloc_transport()
93 	return t;  in alloc_transport()
96 static void free_transport(struct tcp_transport *t)  in free_transport()  argument
98 	kernel_sock_shutdown(t->sock, SHUT_RDWR);  in free_transport()
99 	sock_release(t->sock);  in free_transport()
100 	t->sock = NULL;  in free_transport()
102 	ksmbd_conn_free(KSMBD_TRANS(t)->conn);  in free_transport()
103 	kfree(t->iov);  in free_transport()
104 	kfree(t);  in free_transport()
146 static struct kvec *get_conn_iovec(struct tcp_transport *t, unsigned int nr_segs)  in get_conn_iovec()  argument
150 	if (t->iov && nr_segs <= t->nr_iov)  in get_conn_iovec()
151 		return t->iov;  in get_conn_iovec()
156 		kfree(t->iov);  in get_conn_iovec()
157 		t->iov = new_iov;  in get_conn_iovec()
158 		t->nr_iov = nr_segs;  in get_conn_iovec()
187 	struct tcp_transport *t;  in ksmbd_tcp_new_connection()  local
190 	t = alloc_transport(client_sk);  in ksmbd_tcp_new_connection()
191 	if (!t) {  in ksmbd_tcp_new_connection()
196 	csin = KSMBD_TCP_PEER_SOCKADDR(KSMBD_TRANS(t)->conn);  in ksmbd_tcp_new_connection()
204 			      KSMBD_TRANS(t)->conn,  in ksmbd_tcp_new_connection()
210 		free_transport(t);  in ksmbd_tcp_new_connection()
215 	free_transport(t);  in ksmbd_tcp_new_connection()
304 static int ksmbd_tcp_readv(struct tcp_transport *t, struct kvec *iov_orig,  in ksmbd_tcp_readv()  argument
313 	struct ksmbd_conn *conn = KSMBD_TRANS(t)->conn;  in ksmbd_tcp_readv()
315 	iov = get_conn_iovec(t, nr_segs);  in ksmbd_tcp_readv()
331 		length = kernel_recvmsg(t->sock, &ksmbd_msg,  in ksmbd_tcp_readv()
373 static int ksmbd_tcp_read(struct ksmbd_transport *t, char *buf,  in ksmbd_tcp_read()  argument
381 	return ksmbd_tcp_readv(TCP_TRANS(t), &iov, 1, to_read, max_retries);  in ksmbd_tcp_read()
384 static int ksmbd_tcp_writev(struct ksmbd_transport *t, struct kvec *iov,  in ksmbd_tcp_writev()  argument
391 	return kernel_sendmsg(TCP_TRANS(t)->sock, &smb_msg, iov, nvecs, size);  in ksmbd_tcp_writev()
394 static void ksmbd_tcp_disconnect(struct ksmbd_transport *t)  in ksmbd_tcp_disconnect()  argument
396 	free_transport(TCP_TRANS(t));  in ksmbd_tcp_disconnect()