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authorMaksim Yevmenkin <emax@FreeBSD.org>2009-03-06 23:30:07 +0000
committerMaksim Yevmenkin <emax@FreeBSD.org>2009-03-06 23:30:07 +0000
commitbaeef614490fd9cb1bf325b312e66552b65a2705 (patch)
tree6d586208bf9c5f1fcf2714ca0c5e1c816f8d4f64 /lib/libbluetooth/hci.c
parent42ca1e2bb587a80991fb50b041a91fe5605de1cc (diff)
downloadsrc-baeef614490fd9cb1bf325b312e66552b65a2705.tar.gz
src-baeef614490fd9cb1bf325b312e66552b65a2705.zip
Add Bluetooth compatibility shims. Inspired by Linux BlueZ and NetBSD.
Discussed with: Iain Hibbert plunky -at- rya-online -dot- net of NetBSD MFC after: 1 month
Notes
Notes: svn path=/head/; revision=189462
Diffstat (limited to 'lib/libbluetooth/hci.c')
-rw-r--r--lib/libbluetooth/hci.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/lib/libbluetooth/hci.c b/lib/libbluetooth/hci.c
new file mode 100644
index 000000000000..b6ae10b08e6d
--- /dev/null
+++ b/lib/libbluetooth/hci.c
@@ -0,0 +1,246 @@
+/*
+ * hci.c
+ */
+
+/*-
+ * Copyright (c) 2009 Maksim Yevmenkin <m_evmenkin@yahoo.com>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <bluetooth.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static char * bt_dev2node (char const *devname, char *nodename, int nnlen);
+
+int
+bt_devinfo(struct bt_devinfo *di)
+{
+ union {
+ struct ng_btsocket_hci_raw_node_state r0;
+ struct ng_btsocket_hci_raw_node_bdaddr r1;
+ struct ng_btsocket_hci_raw_node_features r2;
+ struct ng_btsocket_hci_raw_node_buffer r3;
+ struct ng_btsocket_hci_raw_node_stat r4;
+ struct ng_btsocket_hci_raw_node_link_policy_mask r5;
+ struct ng_btsocket_hci_raw_node_packet_mask r6;
+ struct ng_btsocket_hci_raw_node_role_switch r7;
+ struct ng_btsocket_hci_raw_node_debug r8;
+ } rp;
+ struct sockaddr_hci ha;
+ int s, rval;
+
+ if (di == NULL) {
+ errno = EINVAL;
+ return (-1);
+ }
+
+ memset(&ha, 0, sizeof(ha));
+ ha.hci_len = sizeof(ha);
+ ha.hci_family = AF_BLUETOOTH;
+
+ if (bt_aton(di->devname, &rp.r1.bdaddr)) {
+ if (!bt_devname(ha.hci_node, &rp.r1.bdaddr))
+ return (-1);
+ } else if (bt_dev2node(di->devname, ha.hci_node,
+ sizeof(ha.hci_node)) == NULL) {
+ errno = ENXIO;
+ return (-1);
+ }
+
+ s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI);
+ if (s < 0)
+ return (-1);
+
+ rval = -1;
+
+ if (bind(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 ||
+ connect(s, (struct sockaddr *) &ha, sizeof(ha)) < 0)
+ goto bad;
+ strlcpy(di->devname, ha.hci_node, sizeof(di->devname));
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_STATE, &rp.r0, sizeof(rp.r0)) < 0)
+ goto bad;
+ di->state = rp.r0.state;
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_BDADDR, &rp.r1, sizeof(rp.r1)) < 0)
+ goto bad;
+ bdaddr_copy(&di->bdaddr, &rp.r1.bdaddr);
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_FEATURES, &rp.r2, sizeof(rp.r2)) < 0)
+ goto bad;
+ memcpy(di->features, rp.r2.features, sizeof(di->features));
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_BUFFER, &rp.r3, sizeof(rp.r3)) < 0)
+ goto bad;
+ di->cmd_free = rp.r3.buffer.cmd_free;
+ di->sco_size = rp.r3.buffer.sco_size;
+ di->sco_pkts = rp.r3.buffer.sco_pkts;
+ di->sco_free = rp.r3.buffer.sco_free;
+ di->acl_size = rp.r3.buffer.acl_size;
+ di->acl_pkts = rp.r3.buffer.acl_pkts;
+ di->acl_free = rp.r3.buffer.acl_free;
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_STAT, &rp.r4, sizeof(rp.r4)) < 0)
+ goto bad;
+ di->cmd_sent = rp.r4.stat.cmd_sent;
+ di->evnt_recv = rp.r4.stat.evnt_recv;
+ di->acl_recv = rp.r4.stat.acl_recv;
+ di->acl_sent = rp.r4.stat.acl_sent;
+ di->sco_recv = rp.r4.stat.sco_recv;
+ di->sco_sent = rp.r4.stat.sco_sent;
+ di->bytes_recv = rp.r4.stat.bytes_recv;
+ di->bytes_sent = rp.r4.stat.bytes_sent;
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK,
+ &rp.r5, sizeof(rp.r5)) < 0)
+ goto bad;
+ di->link_policy_info = rp.r5.policy_mask;
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_PACKET_MASK,
+ &rp.r6, sizeof(rp.r6)) < 0)
+ goto bad;
+ di->packet_type_info = rp.r6.packet_mask;
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_ROLE_SWITCH,
+ &rp.r7, sizeof(rp.r7)) < 0)
+ goto bad;
+ di->role_switch_info = rp.r7.role_switch;
+
+ if (ioctl(s, SIOC_HCI_RAW_NODE_GET_DEBUG, &rp.r8, sizeof(rp.r8)) < 0)
+ goto bad;
+ di->debug = rp.r8.debug;
+
+ rval = 0;
+bad:
+ close(s);
+
+ return (rval);
+}
+
+int
+bt_devenum(bt_devenum_cb_t cb, void *arg)
+{
+ struct ng_btsocket_hci_raw_node_list_names rp;
+ struct bt_devinfo di;
+ struct sockaddr_hci ha;
+ int s, i, count;
+
+ rp.num_names = HCI_DEVMAX;
+ rp.names = (struct nodeinfo *) calloc(rp.num_names,
+ sizeof(struct nodeinfo));
+ if (rp.names == NULL) {
+ errno = ENOMEM;
+ return (-1);
+ }
+
+ memset(&ha, 0, sizeof(ha));
+ ha.hci_len = sizeof(ha);
+ ha.hci_family = AF_BLUETOOTH;
+ ha.hci_node[0] = 'x';
+
+ s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI);
+ if (s < 0) {
+ free(rp.names);
+
+ return (-1);
+ }
+
+ if (bind(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 ||
+ connect(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 ||
+ ioctl(s, SIOC_HCI_RAW_NODE_LIST_NAMES, &rp, sizeof(rp)) < 0) {
+ close(s);
+ free(rp.names);
+
+ return (-1);
+ }
+
+ for (count = 0, i = 0; i < rp.num_names; i ++) {
+ strlcpy(di.devname, rp.names[i].name, sizeof(di.devname));
+ if (bt_devinfo(&di) < 0)
+ continue;
+
+ count ++;
+
+ if (cb == NULL)
+ continue;
+
+ strlcpy(ha.hci_node, rp.names[i].name, sizeof(ha.hci_node));
+ if (bind(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 ||
+ connect(s, (struct sockaddr *) &ha, sizeof(ha)) < 0)
+ continue;
+
+ if ((*cb)(s, &di, arg) > 0)
+ break;
+ }
+
+ close (s);
+ free(rp.names);
+
+ return (count);
+}
+
+static char *
+bt_dev2node(char const *devname, char *nodename, int nnlen)
+{
+ static char const * bt_dev_prefix[] = {
+ "btccc", /* 3Com Bluetooth PC-CARD */
+ "h4", /* UART/serial Bluetooth devices */
+ "ubt", /* Bluetooth USB devices */
+ NULL /* should be last */
+ };
+
+ static char _nodename[HCI_DEVNAME_SIZE];
+ char const **p;
+ char *ep;
+ int plen, unit;
+
+ if (nodename == NULL) {
+ nodename = _nodename;
+ nnlen = HCI_DEVNAME_SIZE;
+ }
+
+ for (p = bt_dev_prefix; *p != NULL; p ++) {
+ plen = strlen(*p);
+ if (strncmp(devname, *p, plen) != 0)
+ continue;
+
+ unit = strtoul(devname + plen, &ep, 10);
+ if (*ep != '\0' &&
+ strcmp(ep, "hci") != 0 &&
+ strcmp(ep, "l2cap") != 0)
+ return (NULL); /* can't make sense of device name */
+
+ snprintf(nodename, nnlen, "%s%uhci", *p, unit);
+
+ return (nodename);
+ }
+
+ return (NULL);
+}
+