complete the sys/netbt import and adopt some more code to our interfaces

1 files changed, 407 insertions, 0 deletions

diff --git a/sys/netbt/l2cap_socket.c b/sys/netbt/l2cap_socket.c
new file mode 100644
index 00000000000..cc24a086539
--- /dev/null
+++ b/sys/netbt/l2cap_socket.c
@@ -0,0 +1,407 @@
+/*	$OpenBSD: l2cap_socket.c,v 1.1 2007/06/01 02:46:11 uwe Exp $	*/
+/*	$NetBSD: l2cap_socket.c,v 1.7 2007/04/21 06:15:23 plunky Exp $	*/
+
+/*-
+ * Copyright (c) 2005 Iain Hibbert.
+ * Copyright (c) 2006 Itronix Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of Itronix Inc. may not be used to endorse
+ *    or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+/* load symbolic names */
+#ifdef BLUETOOTH_DEBUG
+#define PRUREQUESTS
+#define PRCOREQUESTS
+#endif
+
+#include <sys/param.h>
+#include <sys/domain.h>
+#include <sys/kernel.h>
+#include <sys/mbuf.h>
+#include <sys/proc.h>
+#include <sys/protosw.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/systm.h>
+
+#include <netbt/bluetooth.h>
+#include <netbt/hci.h>		/* XXX for EPASSTHROUGH */
+#include <netbt/l2cap.h>
+
+/*
+ * L2CAP Sockets
+ *
+ *	SOCK_SEQPACKET - normal L2CAP connection
+ *
+ *	SOCK_DGRAM - connectionless L2CAP - XXX not yet
+ */
+
+static void l2cap_connecting(void *);
+static void l2cap_connected(void *);
+static void l2cap_disconnected(void *, int);
+static void *l2cap_newconn(void *, struct sockaddr_bt *, struct sockaddr_bt *);
+static void l2cap_complete(void *, int);
+static void l2cap_linkmode(void *, int);
+static void l2cap_input(void *, struct mbuf *);
+
+static const struct btproto l2cap_proto = {
+	l2cap_connecting,
+	l2cap_connected,
+	l2cap_disconnected,
+	l2cap_newconn,
+	l2cap_complete,
+	l2cap_linkmode,
+	l2cap_input,
+};
+
+/* sysctl variables */
+int l2cap_sendspace = 4096;
+int l2cap_recvspace = 4096;
+
+/*
+ * User Request.
+ * up is socket
+ * m is either
+ *	optional mbuf chain containing message
+ *	ioctl command (PRU_CONTROL)
+ * nam is either
+ *	optional mbuf chain containing an address
+ *	ioctl data (PRU_CONTROL)
+ *	optionally protocol number (PRU_ATTACH)
+ *	message flags (PRU_RCVD)
+ * ctl is either
+ *	optional mbuf chain containing socket options
+ *	optional interface pointer (PRU_CONTROL, PRU_PURGEIF)
+ * l is pointer to process requesting action (if any)
+ *
+ * we are responsible for disposing of m and ctl if
+ * they are mbuf chains
+ */
+int
+l2cap_usrreq(struct socket *up, int req, struct mbuf *m,
+    struct mbuf *nam, struct mbuf *ctl)
+{
+	struct l2cap_channel *pcb = up->so_pcb;
+	struct sockaddr_bt *sa;
+	struct mbuf *m0;
+	int err = 0;
+
+#ifdef notyet			/* XXX */
+	DPRINTFN(2, "%s\n", prurequests[req]);
+#endif
+
+	switch (req) {
+	case PRU_CONTROL:
+		return EPASSTHROUGH;
+
+#ifdef notyet			/* XXX */
+	case PRU_PURGEIF:
+		return EOPNOTSUPP;
+#endif
+
+	case PRU_ATTACH:
+		if (pcb != NULL)
+			return EINVAL;
+
+		/*
+		 * For L2CAP socket PCB we just use an l2cap_channel structure
+		 * since we have nothing to add..
+		 */
+		err = soreserve(up, l2cap_sendspace, l2cap_recvspace);
+		if (err)
+			return err;
+
+		return l2cap_attach((struct l2cap_channel **)&up->so_pcb,
+					&l2cap_proto, up);
+	}
+
+	if (pcb == NULL) {
+		err = EINVAL;
+		goto release;
+	}
+
+	switch(req) {
+	case PRU_DISCONNECT:
+		soisdisconnecting(up);
+		return l2cap_disconnect(pcb, up->so_linger);
+
+	case PRU_ABORT:
+		l2cap_disconnect(pcb, 0);
+		soisdisconnected(up);
+		/* fall through to */
+	case PRU_DETACH:
+		return l2cap_detach((struct l2cap_channel **)&up->so_pcb);
+
+	case PRU_BIND:
+		KASSERT(nam != NULL);
+		sa = mtod(nam, struct sockaddr_bt *);
+
+		if (sa->bt_len != sizeof(struct sockaddr_bt))
+			return EINVAL;
+
+		if (sa->bt_family != AF_BLUETOOTH)
+			return EAFNOSUPPORT;
+
+		return l2cap_bind(pcb, sa);
+
+	case PRU_CONNECT:
+		KASSERT(nam != NULL);
+		sa = mtod(nam, struct sockaddr_bt *);
+
+		if (sa->bt_len != sizeof(struct sockaddr_bt))
+			return EINVAL;
+
+		if (sa->bt_family != AF_BLUETOOTH)
+			return EAFNOSUPPORT;
+
+		soisconnecting(up);
+		return l2cap_connect(pcb, sa);
+
+	case PRU_PEERADDR:
+		KASSERT(nam != NULL);
+		sa = mtod(nam, struct sockaddr_bt *);
+		nam->m_len = sizeof(struct sockaddr_bt);
+		return l2cap_peeraddr(pcb, sa);
+
+	case PRU_SOCKADDR:
+		KASSERT(nam != NULL);
+		sa = mtod(nam, struct sockaddr_bt *);
+		nam->m_len = sizeof(struct sockaddr_bt);
+		return l2cap_sockaddr(pcb, sa);
+
+	case PRU_SHUTDOWN:
+		socantsendmore(up);
+		break;
+
+	case PRU_SEND:
+		KASSERT(m != NULL);
+		if (m->m_pkthdr.len == 0)
+			break;
+
+		if (m->m_pkthdr.len > pcb->lc_omtu) {
+			err = EMSGSIZE;
+			break;
+		}
+
+		m0 = m_copym(m, 0, M_COPYALL, M_DONTWAIT);
+		if (m0 == NULL) {
+			err = ENOMEM;
+			break;
+		}
+
+		if (ctl)	/* no use for that */
+			m_freem(ctl);
+
+		sbappendrecord(&up->so_snd, m);
+		return l2cap_send(pcb, m0);
+
+	case PRU_SENSE:
+		return 0;		/* (no release) */
+
+	case PRU_RCVD:
+	case PRU_RCVOOB:
+		return EOPNOTSUPP;	/* (no release) */
+
+	case PRU_LISTEN:
+		return l2cap_listen(pcb);
+
+	case PRU_ACCEPT:
+		KASSERT(nam != NULL);
+		sa = mtod(nam, struct sockaddr_bt *);
+		nam->m_len = sizeof(struct sockaddr_bt);
+		return l2cap_peeraddr(pcb, sa);
+
+	case PRU_CONNECT2:
+	case PRU_SENDOOB:
+	case PRU_FASTTIMO:
+	case PRU_SLOWTIMO:
+	case PRU_PROTORCV:
+	case PRU_PROTOSEND:
+		err = EOPNOTSUPP;
+		break;
+
+	default:
+		UNKNOWN(req);
+		err = EOPNOTSUPP;
+		break;
+	}
+
+release:
+	if (m) m_freem(m);
+	if (ctl) m_freem(ctl);
+	return err;
+}
+
+/*
+ * l2cap_ctloutput(request, socket, level, optname, opt)
+ *
+ *	Apply configuration commands to channel. This corresponds to
+ *	"Reconfigure Channel Request" in the L2CAP specification.
+ */
+int
+l2cap_ctloutput(int req, struct socket *so, int level,
+		int optname, struct mbuf **opt)
+{
+	struct l2cap_channel *pcb = so->so_pcb;
+	struct mbuf *m;
+	int err = 0;
+
+#ifdef notyet			/* XXX */
+	DPRINTFN(2, "%s\n", prcorequests[req]);
+#endif
+
+	if (pcb == NULL)
+		return EINVAL;
+
+	if (level != BTPROTO_L2CAP)
+		return ENOPROTOOPT;
+
+	switch(req) {
+	case PRCO_GETOPT:
+		m = m_get(M_WAIT, MT_SOOPTS);
+		m->m_len = l2cap_getopt(pcb, optname, mtod(m, void *));
+		if (m->m_len == 0) {
+			m_freem(m);
+			m = NULL;
+			err = ENOPROTOOPT;
+		}
+		*opt = m;
+		break;
+
+	case PRCO_SETOPT:
+		m = *opt;
+		KASSERT(m != NULL);
+		err = l2cap_setopt(pcb, optname, mtod(m, void *));
+		m_freem(m);
+		break;
+
+	default:
+		err = ENOPROTOOPT;
+		break;
+	}
+
+	return err;
+}
+
+/**********************************************************************
+ *
+ *	L2CAP Protocol socket callbacks
+ *
+ */
+
+static void
+l2cap_connecting(void *arg)
+{
+	struct socket *so = arg;
+
+	DPRINTF("Connecting\n");
+	soisconnecting(so);
+}
+
+static void
+l2cap_connected(void *arg)
+{
+	struct socket *so = arg;
+
+	DPRINTF("Connected\n");
+	soisconnected(so);
+}
+
+static void
+l2cap_disconnected(void *arg, int err)
+{
+	struct socket *so = arg;
+
+	DPRINTF("Disconnected (%d)\n", err);
+
+	so->so_error = err;
+	soisdisconnected(so);
+}
+
+static void *
+l2cap_newconn(void *arg, struct sockaddr_bt *laddr,
+    struct sockaddr_bt *raddr)
+{
+	struct socket *so = arg;
+
+	DPRINTF("New Connection\n");
+	so = sonewconn(so, 0);
+	if (so == NULL)
+		return NULL;
+
+	soisconnecting(so);
+
+	return so->so_pcb;
+}
+
+static void
+l2cap_complete(void *arg, int count)
+{
+	struct socket *so = arg;
+
+	while (count-- > 0)
+		sbdroprecord(&so->so_snd);
+
+	sowwakeup(so);
+}
+
+static void
+l2cap_linkmode(void *arg, int new)
+{
+	struct socket *so = arg;
+	int mode;
+
+	DPRINTF("auth %s, encrypt %s, secure %s\n",
+		(new & L2CAP_LM_AUTH ? "on" : "off"),
+		(new & L2CAP_LM_ENCRYPT ? "on" : "off"),
+		(new & L2CAP_LM_SECURE ? "on" : "off"));
+
+	(void)l2cap_getopt(so->so_pcb, SO_L2CAP_LM, &mode);
+	if (((mode & L2CAP_LM_AUTH) && !(new & L2CAP_LM_AUTH))
+	    || ((mode & L2CAP_LM_ENCRYPT) && !(new & L2CAP_LM_ENCRYPT))
+	    || ((mode & L2CAP_LM_SECURE) && !(new & L2CAP_LM_SECURE)))
+		l2cap_disconnect(so->so_pcb, 0);
+}
+
+static void
+l2cap_input(void *arg, struct mbuf *m)
+{
+	struct socket *so = arg;
+
+	if (m->m_pkthdr.len > sbspace(&so->so_rcv)) {
+		printf("%s: packet (%d bytes) dropped (socket buffer full)\n",
+			__func__, m->m_pkthdr.len);
+		m_freem(m);
+		return;
+	}
+
+	DPRINTFN(10, "received %d bytes\n", m->m_pkthdr.len);
+
+	sbappendrecord(&so->so_rcv, m);
+	sorwakeup(so);
+}