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authorPaolo Bonzini <pbonzini@redhat.com>2013-03-01 13:59:19 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-04-08 18:13:12 +0200
commit49ab747f668f421138d5b40d83fa279c4c5e278d (patch)
tree943225a04eac885aed038731adf058f2250a2f40 /hw/bt
parentce3b494cb504f96992f2d37ebc8f56deed202b06 (diff)
downloadqemu-49ab747f668f421138d5b40d83fa279c4c5e278d.tar.gz
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving them to subdirectories of hw/. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/bt')
-rw-r--r--hw/bt/Makefile.objs3
-rw-r--r--hw/bt/core.c121
-rw-r--r--hw/bt/hci-csr.c454
-rw-r--r--hw/bt/hci.c2217
-rw-r--r--hw/bt/hid.c553
-rw-r--r--hw/bt/l2cap.c1365
-rw-r--r--hw/bt/sdp.c967
7 files changed, 5680 insertions, 0 deletions
diff --git a/hw/bt/Makefile.objs b/hw/bt/Makefile.objs
index e69de29bb2..867a7d2e8a 100644
--- a/hw/bt/Makefile.objs
+++ b/hw/bt/Makefile.objs
@@ -0,0 +1,3 @@
+common-obj-y += core.o l2cap.o sdp.o hci.o hid.o
+common-obj-y += hci-csr.o
+
diff --git a/hw/bt/core.c b/hw/bt/core.c
new file mode 100644
index 0000000000..24ef4de49d
--- /dev/null
+++ b/hw/bt/core.c
@@ -0,0 +1,121 @@
+/*
+ * Convenience functions for bluetooth.
+ *
+ * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "bt/bt.h"
+#include "hw/bt.h"
+
+/* Slave implementations can ignore this */
+static void bt_dummy_lmp_mode_change(struct bt_link_s *link)
+{
+}
+
+/* Slaves should never receive these PDUs */
+static void bt_dummy_lmp_connection_complete(struct bt_link_s *link)
+{
+ if (link->slave->reject_reason)
+ fprintf(stderr, "%s: stray LMP_not_accepted received, fixme\n",
+ __FUNCTION__);
+ else
+ fprintf(stderr, "%s: stray LMP_accepted received, fixme\n",
+ __FUNCTION__);
+ exit(-1);
+}
+
+static void bt_dummy_lmp_disconnect_master(struct bt_link_s *link)
+{
+ fprintf(stderr, "%s: stray LMP_detach received, fixme\n", __FUNCTION__);
+ exit(-1);
+}
+
+static void bt_dummy_lmp_acl_resp(struct bt_link_s *link,
+ const uint8_t *data, int start, int len)
+{
+ fprintf(stderr, "%s: stray ACL response PDU, fixme\n", __FUNCTION__);
+ exit(-1);
+}
+
+/* Slaves that don't hold any additional per link state can use these */
+static void bt_dummy_lmp_connection_request(struct bt_link_s *req)
+{
+ struct bt_link_s *link = g_malloc0(sizeof(struct bt_link_s));
+
+ link->slave = req->slave;
+ link->host = req->host;
+
+ req->host->reject_reason = 0;
+ req->host->lmp_connection_complete(link);
+}
+
+static void bt_dummy_lmp_disconnect_slave(struct bt_link_s *link)
+{
+ g_free(link);
+}
+
+static void bt_dummy_destroy(struct bt_device_s *device)
+{
+ bt_device_done(device);
+ g_free(device);
+}
+
+static int bt_dev_idx = 0;
+
+void bt_device_init(struct bt_device_s *dev, struct bt_scatternet_s *net)
+{
+ memset(dev, 0, sizeof(*dev));
+ dev->inquiry_scan = 1;
+ dev->page_scan = 1;
+
+ dev->bd_addr.b[0] = bt_dev_idx & 0xff;
+ dev->bd_addr.b[1] = bt_dev_idx >> 8;
+ dev->bd_addr.b[2] = 0xd0;
+ dev->bd_addr.b[3] = 0xba;
+ dev->bd_addr.b[4] = 0xbe;
+ dev->bd_addr.b[5] = 0xba;
+ bt_dev_idx ++;
+
+ /* Simple slave-only devices need to implement only .lmp_acl_data */
+ dev->lmp_connection_complete = bt_dummy_lmp_connection_complete;
+ dev->lmp_disconnect_master = bt_dummy_lmp_disconnect_master;
+ dev->lmp_acl_resp = bt_dummy_lmp_acl_resp;
+ dev->lmp_mode_change = bt_dummy_lmp_mode_change;
+ dev->lmp_connection_request = bt_dummy_lmp_connection_request;
+ dev->lmp_disconnect_slave = bt_dummy_lmp_disconnect_slave;
+
+ dev->handle_destroy = bt_dummy_destroy;
+
+ dev->net = net;
+ dev->next = net->slave;
+ net->slave = dev;
+}
+
+void bt_device_done(struct bt_device_s *dev)
+{
+ struct bt_device_s **p = &dev->net->slave;
+
+ while (*p && *p != dev)
+ p = &(*p)->next;
+ if (*p != dev) {
+ fprintf(stderr, "%s: bad bt device \"%s\"\n", __FUNCTION__,
+ dev->lmp_name ?: "(null)");
+ exit(-1);
+ }
+
+ *p = dev->next;
+}
diff --git a/hw/bt/hci-csr.c b/hw/bt/hci-csr.c
new file mode 100644
index 0000000000..55c819b085
--- /dev/null
+++ b/hw/bt/hci-csr.c
@@ -0,0 +1,454 @@
+/*
+ * Bluetooth serial HCI transport.
+ * CSR41814 HCI with H4p vendor extensions.
+ *
+ * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "char/char.h"
+#include "qemu/timer.h"
+#include "hw/irq.h"
+#include "bt/bt.h"
+#include "hw/bt.h"
+
+struct csrhci_s {
+ int enable;
+ qemu_irq *pins;
+ int pin_state;
+ int modem_state;
+ CharDriverState chr;
+#define FIFO_LEN 4096
+ int out_start;
+ int out_len;
+ int out_size;
+ uint8_t outfifo[FIFO_LEN * 2];
+ uint8_t inpkt[FIFO_LEN];
+ int in_len;
+ int in_hdr;
+ int in_data;
+ QEMUTimer *out_tm;
+ int64_t baud_delay;
+
+ bdaddr_t bd_addr;
+ struct HCIInfo *hci;
+};
+
+/* H4+ packet types */
+enum {
+ H4_CMD_PKT = 1,
+ H4_ACL_PKT = 2,
+ H4_SCO_PKT = 3,
+ H4_EVT_PKT = 4,
+ H4_NEG_PKT = 6,
+ H4_ALIVE_PKT = 7,
+};
+
+/* CSR41814 negotiation start magic packet */
+static const uint8_t csrhci_neg_packet[] = {
+ H4_NEG_PKT, 10,
+ 0x00, 0xa0, 0x01, 0x00, 0x00,
+ 0x4c, 0x00, 0x96, 0x00, 0x00,
+};
+
+/* CSR41814 vendor-specific command OCFs */
+enum {
+ OCF_CSR_SEND_FIRMWARE = 0x000,
+};
+
+static inline void csrhci_fifo_wake(struct csrhci_s *s)
+{
+ if (!s->enable || !s->out_len)
+ return;
+
+ /* XXX: Should wait for s->modem_state & CHR_TIOCM_RTS? */
+ if (s->chr.chr_can_read && s->chr.chr_can_read(s->chr.handler_opaque) &&
+ s->chr.chr_read) {
+ s->chr.chr_read(s->chr.handler_opaque,
+ s->outfifo + s->out_start ++, 1);
+ s->out_len --;
+ if (s->out_start >= s->out_size) {
+ s->out_start = 0;
+ s->out_size = FIFO_LEN;
+ }
+ }
+
+ if (s->out_len)
+ qemu_mod_timer(s->out_tm, qemu_get_clock_ns(vm_clock) + s->baud_delay);
+}
+
+#define csrhci_out_packetz(s, len) memset(csrhci_out_packet(s, len), 0, len)
+static uint8_t *csrhci_out_packet(struct csrhci_s *s, int len)
+{
+ int off = s->out_start + s->out_len;
+
+ /* TODO: do the padding here, i.e. align len */
+ s->out_len += len;
+
+ if (off < FIFO_LEN) {
+ if (off + len > FIFO_LEN && (s->out_size = off + len) > FIFO_LEN * 2) {
+ fprintf(stderr, "%s: can't alloc %i bytes\n", __FUNCTION__, len);
+ exit(-1);
+ }
+ return s->outfifo + off;
+ }
+
+ if (s->out_len > s->out_size) {
+ fprintf(stderr, "%s: can't alloc %i bytes\n", __FUNCTION__, len);
+ exit(-1);
+ }
+
+ return s->outfifo + off - s->out_size;
+}
+
+static inline uint8_t *csrhci_out_packet_csr(struct csrhci_s *s,
+ int type, int len)
+{
+ uint8_t *ret = csrhci_out_packetz(s, len + 2);
+
+ *ret ++ = type;
+ *ret ++ = len;
+
+ return ret;
+}
+
+static inline uint8_t *csrhci_out_packet_event(struct csrhci_s *s,
+ int evt, int len)
+{
+ uint8_t *ret = csrhci_out_packetz(s,
+ len + 1 + sizeof(struct hci_event_hdr));
+
+ *ret ++ = H4_EVT_PKT;
+ ((struct hci_event_hdr *) ret)->evt = evt;
+ ((struct hci_event_hdr *) ret)->plen = len;
+
+ return ret + sizeof(struct hci_event_hdr);
+}
+
+static void csrhci_in_packet_vendor(struct csrhci_s *s, int ocf,
+ uint8_t *data, int len)
+{
+ int offset;
+ uint8_t *rpkt;
+
+ switch (ocf) {
+ case OCF_CSR_SEND_FIRMWARE:
+ /* Check if this is the bd_address packet */
+ if (len >= 18 + 8 && data[12] == 0x01 && data[13] == 0x00) {
+ offset = 18;
+ s->bd_addr.b[0] = data[offset + 7]; /* Beyond cmd packet end(!?) */
+ s->bd_addr.b[1] = data[offset + 6];
+ s->bd_addr.b[2] = data[offset + 4];
+ s->bd_addr.b[3] = data[offset + 0];
+ s->bd_addr.b[4] = data[offset + 3];
+ s->bd_addr.b[5] = data[offset + 2];
+
+ s->hci->bdaddr_set(s->hci, s->bd_addr.b);
+ fprintf(stderr, "%s: bd_address loaded from firmware: "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n", __FUNCTION__,
+ s->bd_addr.b[0], s->bd_addr.b[1], s->bd_addr.b[2],
+ s->bd_addr.b[3], s->bd_addr.b[4], s->bd_addr.b[5]);
+ }
+
+ rpkt = csrhci_out_packet_event(s, EVT_VENDOR, 11);
+ /* Status bytes: no error */
+ rpkt[9] = 0x00;
+ rpkt[10] = 0x00;
+ break;
+
+ default:
+ fprintf(stderr, "%s: got a bad CMD packet\n", __FUNCTION__);
+ return;
+ }
+
+ csrhci_fifo_wake(s);
+}
+
+static void csrhci_in_packet(struct csrhci_s *s, uint8_t *pkt)
+{
+ uint8_t *rpkt;
+ int opc;
+
+ switch (*pkt ++) {
+ case H4_CMD_PKT:
+ opc = le16_to_cpu(((struct hci_command_hdr *) pkt)->opcode);
+ if (cmd_opcode_ogf(opc) == OGF_VENDOR_CMD) {
+ csrhci_in_packet_vendor(s, cmd_opcode_ocf(opc),
+ pkt + sizeof(struct hci_command_hdr),
+ s->in_len - sizeof(struct hci_command_hdr) - 1);
+ return;
+ }
+
+ /* TODO: if the command is OCF_READ_LOCAL_COMMANDS or the likes,
+ * we need to send it to the HCI layer and then add our supported
+ * commands to the returned mask (such as OGF_VENDOR_CMD). With
+ * bt-hci.c we could just have hooks for this kind of commands but
+ * we can't with bt-host.c. */
+
+ s->hci->cmd_send(s->hci, pkt, s->in_len - 1);
+ break;
+
+ case H4_EVT_PKT:
+ goto bad_pkt;
+
+ case H4_ACL_PKT:
+ s->hci->acl_send(s->hci, pkt, s->in_len - 1);
+ break;
+
+ case H4_SCO_PKT:
+ s->hci->sco_send(s->hci, pkt, s->in_len - 1);
+ break;
+
+ case H4_NEG_PKT:
+ if (s->in_hdr != sizeof(csrhci_neg_packet) ||
+ memcmp(pkt - 1, csrhci_neg_packet, s->in_hdr)) {
+ fprintf(stderr, "%s: got a bad NEG packet\n", __FUNCTION__);
+ return;
+ }
+ pkt += 2;
+
+ rpkt = csrhci_out_packet_csr(s, H4_NEG_PKT, 10);
+
+ *rpkt ++ = 0x20; /* Operational settings negotiation Ok */
+ memcpy(rpkt, pkt, 7); rpkt += 7;
+ *rpkt ++ = 0xff;
+ *rpkt = 0xff;
+ break;
+
+ case H4_ALIVE_PKT:
+ if (s->in_hdr != 4 || pkt[1] != 0x55 || pkt[2] != 0x00) {
+ fprintf(stderr, "%s: got a bad ALIVE packet\n", __FUNCTION__);
+ return;
+ }
+
+ rpkt = csrhci_out_packet_csr(s, H4_ALIVE_PKT, 2);
+
+ *rpkt ++ = 0xcc;
+ *rpkt = 0x00;
+ break;
+
+ default:
+ bad_pkt:
+ /* TODO: error out */
+ fprintf(stderr, "%s: got a bad packet\n", __FUNCTION__);
+ break;
+ }
+
+ csrhci_fifo_wake(s);
+}
+
+static int csrhci_header_len(const uint8_t *pkt)
+{
+ switch (pkt[0]) {
+ case H4_CMD_PKT:
+ return HCI_COMMAND_HDR_SIZE;
+ case H4_EVT_PKT:
+ return HCI_EVENT_HDR_SIZE;
+ case H4_ACL_PKT:
+ return HCI_ACL_HDR_SIZE;
+ case H4_SCO_PKT:
+ return HCI_SCO_HDR_SIZE;
+ case H4_NEG_PKT:
+ return pkt[1] + 1;
+ case H4_ALIVE_PKT:
+ return 3;
+ }
+
+ exit(-1);
+}
+
+static int csrhci_data_len(const uint8_t *pkt)
+{
+ switch (*pkt ++) {
+ case H4_CMD_PKT:
+ /* It seems that vendor-specific command packets for H4+ are all
+ * one byte longer than indicated in the standard header. */
+ if (le16_to_cpu(((struct hci_command_hdr *) pkt)->opcode) == 0xfc00)
+ return (((struct hci_command_hdr *) pkt)->plen + 1) & ~1;
+
+ return ((struct hci_command_hdr *) pkt)->plen;
+ case H4_EVT_PKT:
+ return ((struct hci_event_hdr *) pkt)->plen;
+ case H4_ACL_PKT:
+ return le16_to_cpu(((struct hci_acl_hdr *) pkt)->dlen);
+ case H4_SCO_PKT:
+ return ((struct hci_sco_hdr *) pkt)->dlen;
+ case H4_NEG_PKT:
+ case H4_ALIVE_PKT:
+ return 0;
+ }
+
+ exit(-1);
+}
+
+static int csrhci_write(struct CharDriverState *chr,
+ const uint8_t *buf, int len)
+{
+ struct csrhci_s *s = (struct csrhci_s *) chr->opaque;
+ int plen = s->in_len;
+
+ if (!s->enable)
+ return 0;
+
+ s->in_len += len;
+ memcpy(s->inpkt + plen, buf, len);
+
+ while (1) {
+ if (s->in_len >= 2 && plen < 2)
+ s->in_hdr = csrhci_header_len(s->inpkt) + 1;
+
+ if (s->in_len >= s->in_hdr && plen < s->in_hdr)
+ s->in_data = csrhci_data_len(s->inpkt) + s->in_hdr;
+
+ if (s->in_len >= s->in_data) {
+ csrhci_in_packet(s, s->inpkt);
+
+ memmove(s->inpkt, s->inpkt + s->in_len, s->in_len - s->in_data);
+ s->in_len -= s->in_data;
+ s->in_hdr = INT_MAX;
+ s->in_data = INT_MAX;
+ plen = 0;
+ } else
+ break;
+ }
+
+ return len;
+}
+
+static void csrhci_out_hci_packet_event(void *opaque,
+ const uint8_t *data, int len)
+{
+ struct csrhci_s *s = (struct csrhci_s *) opaque;
+ uint8_t *pkt = csrhci_out_packet(s, (len + 2) & ~1); /* Align */
+
+ *pkt ++ = H4_EVT_PKT;
+ memcpy(pkt, data, len);
+
+ csrhci_fifo_wake(s);
+}
+
+static void csrhci_out_hci_packet_acl(void *opaque,
+ const uint8_t *data, int len)
+{
+ struct csrhci_s *s = (struct csrhci_s *) opaque;
+ uint8_t *pkt = csrhci_out_packet(s, (len + 2) & ~1); /* Align */
+
+ *pkt ++ = H4_ACL_PKT;
+ pkt[len & ~1] = 0;
+ memcpy(pkt, data, len);
+
+ csrhci_fifo_wake(s);
+}
+
+static int csrhci_ioctl(struct CharDriverState *chr, int cmd, void *arg)
+{
+ QEMUSerialSetParams *ssp;
+ struct csrhci_s *s = (struct csrhci_s *) chr->opaque;
+ int prev_state = s->modem_state;
+
+ switch (cmd) {
+ case CHR_IOCTL_SERIAL_SET_PARAMS:
+ ssp = (QEMUSerialSetParams *) arg;
+ s->baud_delay = get_ticks_per_sec() / ssp->speed;
+ /* Moments later... (but shorter than 100ms) */
+ s->modem_state |= CHR_TIOCM_CTS;
+ break;
+
+ case CHR_IOCTL_SERIAL_GET_TIOCM:
+ *(int *) arg = s->modem_state;
+ break;
+
+ case CHR_IOCTL_SERIAL_SET_TIOCM:
+ s->modem_state = *(int *) arg;
+ if (~s->modem_state & prev_state & CHR_TIOCM_RTS)
+ s->modem_state &= ~CHR_TIOCM_CTS;
+ break;
+
+ default:
+ return -ENOTSUP;
+ }
+ return 0;
+}
+
+static void csrhci_reset(struct csrhci_s *s)
+{
+ s->out_len = 0;
+ s->out_size = FIFO_LEN;
+ s->in_len = 0;
+ s->baud_delay = get_ticks_per_sec();
+ s->enable = 0;
+ s->in_hdr = INT_MAX;
+ s->in_data = INT_MAX;
+
+ s->modem_state = 0;
+ /* After a while... (but sooner than 10ms) */
+ s->modem_state |= CHR_TIOCM_CTS;
+
+ memset(&s->bd_addr, 0, sizeof(bdaddr_t));
+}
+
+static void csrhci_out_tick(void *opaque)
+{
+ csrhci_fifo_wake((struct csrhci_s *) opaque);
+}
+
+static void csrhci_pins(void *opaque, int line, int level)
+{
+ struct csrhci_s *s = (struct csrhci_s *) opaque;
+ int state = s->pin_state;
+
+ s->pin_state &= ~(1 << line);
+ s->pin_state |= (!!level) << line;
+
+ if ((state & ~s->pin_state) & (1 << csrhci_pin_reset)) {
+ /* TODO: Disappear from lower layers */
+ csrhci_reset(s);
+ }
+
+ if (s->pin_state == 3 && state != 3) {
+ s->enable = 1;
+ /* TODO: Wake lower layers up */
+ }
+}
+
+qemu_irq *csrhci_pins_get(CharDriverState *chr)
+{
+ struct csrhci_s *s = (struct csrhci_s *) chr->opaque;
+
+ return s->pins;
+}
+
+CharDriverState *uart_hci_init(qemu_irq wakeup)
+{
+ struct csrhci_s *s = (struct csrhci_s *)
+ g_malloc0(sizeof(struct csrhci_s));
+
+ s->chr.opaque = s;
+ s->chr.chr_write = csrhci_write;
+ s->chr.chr_ioctl = csrhci_ioctl;
+ s->chr.avail_connections = 1;
+
+ s->hci = qemu_next_hci();
+ s->hci->opaque = s;
+ s->hci->evt_recv = csrhci_out_hci_packet_event;
+ s->hci->acl_recv = csrhci_out_hci_packet_acl;
+
+ s->out_tm = qemu_new_timer_ns(vm_clock, csrhci_out_tick, s);
+ s->pins = qemu_allocate_irqs(csrhci_pins, s, __csrhci_pins);
+ csrhci_reset(s);
+
+ return &s->chr;
+}
diff --git a/hw/bt/hci.c b/hw/bt/hci.c
new file mode 100644
index 0000000000..a76edea2c9
--- /dev/null
+++ b/hw/bt/hci.c
@@ -0,0 +1,2217 @@
+/*
+ * QEMU Bluetooth HCI logic.
+ *
+ * Copyright (C) 2007 OpenMoko, Inc.
+ * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "qemu/timer.h"
+#include "hw/usb.h"
+#include "bt/bt.h"
+#include "hw/bt.h"
+
+struct bt_hci_s {
+ uint8_t *(*evt_packet)(void *opaque);
+ void (*evt_submit)(void *opaque, int len);
+ void *opaque;
+ uint8_t evt_buf[256];
+
+ uint8_t acl_buf[4096];
+ int acl_len;
+
+ uint16_t asb_handle;
+ uint16_t psb_handle;
+
+ int last_cmd; /* Note: Always little-endian */
+
+ struct bt_device_s *conn_req_host;
+
+ struct {
+ int inquire;
+ int periodic;
+ int responses_left;
+ int responses;
+ QEMUTimer *inquiry_done;
+ QEMUTimer *inquiry_next;
+ int inquiry_length;
+ int inquiry_period;
+ int inquiry_mode;
+
+#define HCI_HANDLE_OFFSET 0x20
+#define HCI_HANDLES_MAX 0x10
+ struct bt_hci_master_link_s {
+ struct bt_link_s *link;
+ void (*lmp_acl_data)(struct bt_link_s *link,
+ const uint8_t *data, int start, int len);
+ QEMUTimer *acl_mode_timer;
+ } handle[HCI_HANDLES_MAX];
+ uint32_t role_bmp;
+ int last_handle;
+ int connecting;
+ bdaddr_t awaiting_bdaddr[HCI_HANDLES_MAX];
+ } lm;
+
+ uint8_t event_mask[8];
+ uint16_t voice_setting; /* Notw: Always little-endian */
+ uint16_t conn_accept_tout;
+ QEMUTimer *conn_accept_timer;
+
+ struct HCIInfo info;
+ struct bt_device_s device;
+};
+
+#define DEFAULT_RSSI_DBM 20
+
+#define hci_from_info(ptr) container_of((ptr), struct bt_hci_s, info)
+#define hci_from_device(ptr) container_of((ptr), struct bt_hci_s, device)
+
+struct bt_hci_link_s {
+ struct bt_link_s btlink;
+ uint16_t handle; /* Local */
+};
+
+/* LMP layer emulation */
+#if 0
+static void bt_submit_lmp(struct bt_device_s *bt, int length, uint8_t *data)
+{
+ int resp, resplen, error, op, tr;
+ uint8_t respdata[17];
+
+ if (length < 1)
+ return;
+
+ tr = *data & 1;
+ op = *(data ++) >> 1;
+ resp = LMP_ACCEPTED;
+ resplen = 2;
+ respdata[1] = op;
+ error = 0;
+ length --;
+
+ if (op >= 0x7c) { /* Extended opcode */
+ op |= *(data ++) << 8;
+ resp = LMP_ACCEPTED_EXT;
+ resplen = 4;
+ respdata[0] = op >> 8;
+ respdata[1] = op & 0xff;
+ length --;
+ }
+
+ switch (op) {
+ case LMP_ACCEPTED:
+ /* data[0] Op code
+ */
+ if (length < 1) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = 0;
+ break;
+
+ case LMP_ACCEPTED_EXT:
+ /* data[0] Escape op code
+ * data[1] Extended op code
+ */
+ if (length < 2) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = 0;
+ break;
+
+ case LMP_NOT_ACCEPTED:
+ /* data[0] Op code
+ * data[1] Error code
+ */
+ if (length < 2) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = 0;
+ break;
+
+ case LMP_NOT_ACCEPTED_EXT:
+ /* data[0] Op code
+ * data[1] Extended op code
+ * data[2] Error code
+ */
+ if (length < 3) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = 0;
+ break;
+
+ case LMP_HOST_CONNECTION_REQ:
+ break;
+
+ case LMP_SETUP_COMPLETE:
+ resp = LMP_SETUP_COMPLETE;
+ resplen = 1;
+ bt->setup = 1;
+ break;
+
+ case LMP_DETACH:
+ /* data[0] Error code
+ */
+ if (length < 1) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ bt->setup = 0;
+ resp = 0;
+ break;
+
+ case LMP_SUPERVISION_TIMEOUT:
+ /* data[0,1] Supervision timeout
+ */
+ if (length < 2) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = 0;
+ break;
+
+ case LMP_QUALITY_OF_SERVICE:
+ resp = 0;
+ /* Fall through */
+ case LMP_QOS_REQ:
+ /* data[0,1] Poll interval
+ * data[2] N(BC)
+ */
+ if (length < 3) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ break;
+
+ case LMP_MAX_SLOT:
+ resp = 0;
+ /* Fall through */
+ case LMP_MAX_SLOT_REQ:
+ /* data[0] Max slots
+ */
+ if (length < 1) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ break;
+
+ case LMP_AU_RAND:
+ case LMP_IN_RAND:
+ case LMP_COMB_KEY:
+ /* data[0-15] Random number
+ */
+ if (length < 16) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ if (op == LMP_AU_RAND) {
+ if (bt->key_present) {
+ resp = LMP_SRES;
+ resplen = 5;
+ /* XXX: [Part H] Section 6.1 on page 801 */
+ } else {
+ error = HCI_PIN_OR_KEY_MISSING;
+ goto not_accepted;
+ }
+ } else if (op == LMP_IN_RAND) {
+ error = HCI_PAIRING_NOT_ALLOWED;
+ goto not_accepted;
+ } else {
+ /* XXX: [Part H] Section 3.2 on page 779 */
+ resp = LMP_UNIT_KEY;
+ resplen = 17;
+ memcpy(respdata + 1, bt->key, 16);
+
+ error = HCI_UNIT_LINK_KEY_USED;
+ goto not_accepted;
+ }
+ break;
+
+ case LMP_UNIT_KEY:
+ /* data[0-15] Key
+ */
+ if (length < 16) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ memcpy(bt->key, data, 16);
+ bt->key_present = 1;
+ break;
+
+ case LMP_SRES:
+ /* data[0-3] Authentication response
+ */
+ if (length < 4) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ break;
+
+ case LMP_CLKOFFSET_REQ:
+ resp = LMP_CLKOFFSET_RES;
+ resplen = 3;
+ respdata[1] = 0x33;
+ respdata[2] = 0x33;
+ break;
+
+ case LMP_CLKOFFSET_RES:
+ /* data[0,1] Clock offset
+ * (Slave to master only)
+ */
+ if (length < 2) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ break;
+
+ case LMP_VERSION_REQ:
+ case LMP_VERSION_RES:
+ /* data[0] VersNr
+ * data[1,2] CompId
+ * data[3,4] SubVersNr
+ */
+ if (length < 5) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ if (op == LMP_VERSION_REQ) {
+ resp = LMP_VERSION_RES;
+ resplen = 6;
+ respdata[1] = 0x20;
+ respdata[2] = 0xff;
+ respdata[3] = 0xff;
+ respdata[4] = 0xff;
+ respdata[5] = 0xff;
+ } else
+ resp = 0;
+ break;
+
+ case LMP_FEATURES_REQ:
+ case LMP_FEATURES_RES:
+ /* data[0-7] Features
+ */
+ if (length < 8) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ if (op == LMP_FEATURES_REQ) {
+ resp = LMP_FEATURES_RES;
+ resplen = 9;
+ respdata[1] = (bt->lmp_caps >> 0) & 0xff;
+ respdata[2] = (bt->lmp_caps >> 8) & 0xff;
+ respdata[3] = (bt->lmp_caps >> 16) & 0xff;
+ respdata[4] = (bt->lmp_caps >> 24) & 0xff;
+ respdata[5] = (bt->lmp_caps >> 32) & 0xff;
+ respdata[6] = (bt->lmp_caps >> 40) & 0xff;
+ respdata[7] = (bt->lmp_caps >> 48) & 0xff;
+ respdata[8] = (bt->lmp_caps >> 56) & 0xff;
+ } else
+ resp = 0;
+ break;
+
+ case LMP_NAME_REQ:
+ /* data[0] Name offset
+ */
+ if (length < 1) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = LMP_NAME_RES;
+ resplen = 17;
+ respdata[1] = data[0];
+ respdata[2] = strlen(bt->lmp_name);
+ memset(respdata + 3, 0x00, 14);
+ if (respdata[2] > respdata[1])
+ memcpy(respdata + 3, bt->lmp_name + respdata[1],
+ respdata[2] - respdata[1]);
+ break;
+
+ case LMP_NAME_RES:
+ /* data[0] Name offset
+ * data[1] Name length
+ * data[2-15] Name fragment
+ */
+ if (length < 16) {
+ error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
+ goto not_accepted;
+ }
+ resp = 0;
+ break;
+
+ default:
+ error = HCI_UNKNOWN_LMP_PDU;
+ /* Fall through */
+ not_accepted:
+ if (op >> 8) {
+ resp = LMP_NOT_ACCEPTED_EXT;
+ resplen = 5;
+ respdata[0] = op >> 8;
+ respdata[1] = op & 0xff;
+ respdata[2] = error;
+ } else {
+ resp = LMP_NOT_ACCEPTED;
+ resplen = 3;
+ respdata[0] = op & 0xff;
+ respdata[1] = error;
+ }
+ }
+
+ if (resp == 0)
+ return;
+
+ if (resp >> 8) {
+ respdata[0] = resp >> 8;
+ respdata[1] = resp & 0xff;
+ } else
+ respdata[0] = resp & 0xff;
+
+ respdata[0] <<= 1;
+ respdata[0] |= tr;
+}
+
+static void bt_submit_raw_acl(struct bt_piconet_s *net, int length, uint8_t *data)
+{
+ struct bt_device_s *slave;
+ if (length < 1)
+ return;
+
+ slave = 0;
+#if 0
+ slave = net->slave;
+#endif
+
+ switch (data[0] & 3) {
+ case LLID_ACLC:
+ bt_submit_lmp(slave, length - 1, data + 1);
+ break;
+ case LLID_ACLU_START:
+#if 0
+ bt_sumbit_l2cap(slave, length - 1, data + 1, (data[0] >> 2) & 1);
+ breka;
+#endif
+ default:
+ case LLID_ACLU_CONT:
+ break;
+ }
+}
+#endif
+
+/* HCI layer emulation */
+
+/* Note: we could ignore endiannes because unswapped handles will still
+ * be valid as connection identifiers for the guest - they don't have to
+ * be continuously allocated. We do it though, to preserve similar
+ * behaviour between hosts. Some things, like the BD_ADDR cannot be
+ * preserved though (for example if a real hci is used). */
+#ifdef HOST_WORDS_BIGENDIAN
+# define HNDL(raw) bswap16(raw)
+#else
+# define HNDL(raw) (raw)
+#endif
+
+static const uint8_t bt_event_reserved_mask[8] = {
+ 0xff, 0x9f, 0xfb, 0xff, 0x07, 0x18, 0x00, 0x00,
+};
+
+static inline uint8_t *bt_hci_event_start(struct bt_hci_s *hci,
+ int evt, int len)
+{
+ uint8_t *packet, mask;
+ int mask_byte;
+
+ if (len > 255) {
+ fprintf(stderr, "%s: HCI event params too long (%ib)\n",
+ __FUNCTION__, len);
+ exit(-1);
+ }
+
+ mask_byte = (evt - 1) >> 3;
+ mask = 1 << ((evt - 1) & 3);
+ if (mask & bt_event_reserved_mask[mask_byte] & ~hci->event_mask[mask_byte])
+ return NULL;
+
+ packet = hci->evt_packet(hci->opaque);
+ packet[0] = evt;
+ packet[1] = len;
+
+ return &packet[2];
+}
+
+static inline void bt_hci_event(struct bt_hci_s *hci, int evt,
+ void *params, int len)
+{
+ uint8_t *packet = bt_hci_event_start(hci, evt, len);
+
+ if (!packet)
+ return;
+
+ if (len)
+ memcpy(packet, params, len);
+
+ hci->evt_submit(hci->opaque, len + 2);
+}
+
+static inline void bt_hci_event_status(struct bt_hci_s *hci, int status)
+{
+ evt_cmd_status params = {
+ .status = status,
+ .ncmd = 1,
+ .opcode = hci->last_cmd,
+ };
+
+ bt_hci_event(hci, EVT_CMD_STATUS, &params, EVT_CMD_STATUS_SIZE);
+}
+
+static inline void bt_hci_event_complete(struct bt_hci_s *hci,
+ void *ret, int len)
+{
+ uint8_t *packet = bt_hci_event_start(hci, EVT_CMD_COMPLETE,
+ len + EVT_CMD_COMPLETE_SIZE);
+ evt_cmd_complete *params = (evt_cmd_complete *) packet;
+
+ if (!packet)
+ return;
+
+ params->ncmd = 1;
+ params->opcode = hci->last_cmd;
+ if (len)
+ memcpy(&packet[EVT_CMD_COMPLETE_SIZE], ret, len);
+
+ hci->evt_submit(hci->opaque, len + EVT_CMD_COMPLETE_SIZE + 2);
+}
+
+static void bt_hci_inquiry_done(void *opaque)
+{
+ struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
+ uint8_t status = HCI_SUCCESS;
+
+ if (!hci->lm.periodic)
+ hci->lm.inquire = 0;
+
+ /* The specification is inconsistent about this one. Page 565 reads
+ * "The event parameters of Inquiry Complete event will have a summary
+ * of the result from the Inquiry process, which reports the number of
+ * nearby Bluetooth devices that responded [so hci->responses].", but
+ * Event Parameters (see page 729) has only Status. */
+ bt_hci_event(hci, EVT_INQUIRY_COMPLETE, &status, 1);
+}
+
+static void bt_hci_inquiry_result_standard(struct bt_hci_s *hci,
+ struct bt_device_s *slave)
+{
+ inquiry_info params = {
+ .num_responses = 1,
+ .bdaddr = BAINIT(&slave->bd_addr),
+ .pscan_rep_mode = 0x00, /* R0 */
+ .pscan_period_mode = 0x00, /* P0 - deprecated */
+ .pscan_mode = 0x00, /* Standard scan - deprecated */
+ .dev_class[0] = slave->class[0],
+ .dev_class[1] = slave->class[1],
+ .dev_class[2] = slave->class[2],
+ /* TODO: return the clkoff *differenece* */
+ .clock_offset = slave->clkoff, /* Note: no swapping */
+ };
+
+ bt_hci_event(hci, EVT_INQUIRY_RESULT, &params, INQUIRY_INFO_SIZE);
+}
+
+static void bt_hci_inquiry_result_with_rssi(struct bt_hci_s *hci,
+ struct bt_device_s *slave)
+{
+ inquiry_info_with_rssi params = {
+ .num_responses = 1,
+ .bdaddr = BAINIT(&slave->bd_addr),
+ .pscan_rep_mode = 0x00, /* R0 */
+ .pscan_period_mode = 0x00, /* P0 - deprecated */
+ .dev_class[0] = slave->class[0],
+ .dev_class[1] = slave->class[1],
+ .dev_class[2] = slave->class[2],
+ /* TODO: return the clkoff *differenece* */
+ .clock_offset = slave->clkoff, /* Note: no swapping */
+ .rssi = DEFAULT_RSSI_DBM,
+ };
+
+ bt_hci_event(hci, EVT_INQUIRY_RESULT_WITH_RSSI,
+ &params, INQUIRY_INFO_WITH_RSSI_SIZE);
+}
+
+static void bt_hci_inquiry_result(struct bt_hci_s *hci,
+ struct bt_device_s *slave)
+{
+ if (!slave->inquiry_scan || !hci->lm.responses_left)
+ return;
+
+ hci->lm.responses_left --;
+ hci->lm.responses ++;
+
+ switch (hci->lm.inquiry_mode) {
+ case 0x00:
+ bt_hci_inquiry_result_standard(hci, slave);
+ return;
+ case 0x01:
+ bt_hci_inquiry_result_with_rssi(hci, slave);
+ return;
+ default:
+ fprintf(stderr, "%s: bad inquiry mode %02x\n", __FUNCTION__,
+ hci->lm.inquiry_mode);
+ exit(-1);
+ }
+}
+
+static void bt_hci_mod_timer_1280ms(QEMUTimer *timer, int period)
+{
+ qemu_mod_timer(timer, qemu_get_clock_ns(vm_clock) +
+ muldiv64(period << 7, get_ticks_per_sec(), 100));
+}
+
+static void bt_hci_inquiry_start(struct bt_hci_s *hci, int length)
+{
+ struct bt_device_s *slave;
+
+ hci->lm.inquiry_length = length;
+ for (slave = hci->device.net->slave; slave; slave = slave->next)
+ /* Don't uncover ourselves. */
+ if (slave != &hci->device)
+ bt_hci_inquiry_result(hci, slave);
+
+ /* TODO: register for a callback on a new device's addition to the
+ * scatternet so that if it's added before inquiry_length expires,
+ * an Inquiry Result is generated immediately. Alternatively re-loop
+ * through the devices on the inquiry_length expiration and report
+ * devices not seen before. */
+ if (hci->lm.responses_left)
+ bt_hci_mod_timer_1280ms(hci->lm.inquiry_done, hci->lm.inquiry_length);
+ else
+ bt_hci_inquiry_done(hci);
+
+ if (hci->lm.periodic)
+ bt_hci_mod_timer_1280ms(hci->lm.inquiry_next, hci->lm.inquiry_period);
+}
+
+static void bt_hci_inquiry_next(void *opaque)
+{
+ struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
+
+ hci->lm.responses_left += hci->lm.responses;
+ hci->lm.responses = 0;
+ bt_hci_inquiry_start(hci, hci->lm.inquiry_length);
+}
+
+static inline int bt_hci_handle_bad(struct bt_hci_s *hci, uint16_t handle)
+{
+ return !(handle & HCI_HANDLE_OFFSET) ||
+ handle >= (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX) ||
+ !hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
+}
+
+static inline int bt_hci_role_master(struct bt_hci_s *hci, uint16_t handle)
+{
+ return !!(hci->lm.role_bmp & (1 << (handle & ~HCI_HANDLE_OFFSET)));
+}
+
+static inline struct bt_device_s *bt_hci_remote_dev(struct bt_hci_s *hci,
+ uint16_t handle)
+{
+ struct bt_link_s *link = hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
+
+ return bt_hci_role_master(hci, handle) ? link->slave : link->host;
+}
+
+static void bt_hci_mode_tick(void *opaque);
+static void bt_hci_lmp_link_establish(struct bt_hci_s *hci,
+ struct bt_link_s *link, int master)
+{
+ hci->lm.handle[hci->lm.last_handle].link = link;
+
+ if (master) {
+ /* We are the master side of an ACL link */
+ hci->lm.role_bmp |= 1 << hci->lm.last_handle;
+
+ hci->lm.handle[hci->lm.last_handle].lmp_acl_data =
+ link->slave->lmp_acl_data;
+ } else {
+ /* We are the slave side of an ACL link */
+ hci->lm.role_bmp &= ~(1 << hci->lm.last_handle);
+
+ hci->lm.handle[hci->lm.last_handle].lmp_acl_data =
+ link->host->lmp_acl_resp;
+ }
+
+ /* Mode */
+ if (master) {
+ link->acl_mode = acl_active;
+ hci->lm.handle[hci->lm.last_handle].acl_mode_timer =
+ qemu_new_timer_ns(vm_clock, bt_hci_mode_tick, link);
+ }
+}
+
+static void bt_hci_lmp_link_teardown(struct bt_hci_s *hci, uint16_t handle)
+{
+ handle &= ~HCI_HANDLE_OFFSET;
+ hci->lm.handle[handle].link = NULL;
+
+ if (bt_hci_role_master(hci, handle)) {
+ qemu_del_timer(hci->lm.handle[handle].acl_mode_timer);
+ qemu_free_timer(hci->lm.handle[handle].acl_mode_timer);
+ }
+}
+
+static int bt_hci_connect(struct bt_hci_s *hci, bdaddr_t *bdaddr)
+{
+ struct bt_device_s *slave;
+ struct bt_link_s link;
+
+ for (slave = hci->device.net->slave; slave; slave = slave->next)
+ if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr))
+ break;
+ if (!slave || slave == &hci->device)
+ return -ENODEV;
+
+ bacpy(&hci->lm.awaiting_bdaddr[hci->lm.connecting ++], &slave->bd_addr);
+
+ link.slave = slave;
+ link.host = &hci->device;
+ link.slave->lmp_connection_request(&link); /* Always last */
+
+ return 0;
+}
+
+static void bt_hci_connection_reject(struct bt_hci_s *hci,
+ struct bt_device_s *host, uint8_t because)
+{
+ struct bt_link_s link = {
+ .slave = &hci->device,
+ .host = host,
+ /* Rest uninitialised */
+ };
+
+ host->reject_reason = because;
+ host->lmp_connection_complete(&link);
+}
+
+static void bt_hci_connection_reject_event(struct bt_hci_s *hci,
+ bdaddr_t *bdaddr)
+{
+ evt_conn_complete params;
+
+ params.status = HCI_NO_CONNECTION;
+ params.handle = 0;
+ bacpy(&params.bdaddr, bdaddr);
+ params.link_type = ACL_LINK;
+ params.encr_mode = 0x00; /* Encryption not required */
+ bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
+}
+
+static void bt_hci_connection_accept(struct bt_hci_s *hci,
+ struct bt_device_s *host)
+{
+ struct bt_hci_link_s *link = g_malloc0(sizeof(struct bt_hci_link_s));
+ evt_conn_complete params;
+ uint16_t handle;
+ uint8_t status = HCI_SUCCESS;
+ int tries = HCI_HANDLES_MAX;
+
+ /* Make a connection handle */
+ do {
+ while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries)
+ hci->lm.last_handle &= HCI_HANDLES_MAX - 1;
+ handle = hci->lm.last_handle | HCI_HANDLE_OFFSET;
+ } while ((handle == hci->asb_handle || handle == hci->psb_handle) &&
+ tries);
+
+ if (!tries) {
+ g_free(link);
+ bt_hci_connection_reject(hci, host, HCI_REJECTED_LIMITED_RESOURCES);
+ status = HCI_NO_CONNECTION;
+ goto complete;
+ }
+
+ link->btlink.slave = &hci->device;
+ link->btlink.host = host;
+ link->handle = handle;
+
+ /* Link established */
+ bt_hci_lmp_link_establish(hci, &link->btlink, 0);
+
+complete:
+ params.status = status;
+ params.handle = HNDL(handle);
+ bacpy(&params.bdaddr, &host->bd_addr);
+ params.link_type = ACL_LINK;
+ params.encr_mode = 0x00; /* Encryption not required */
+ bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
+
+ /* Neets to be done at the very end because it can trigger a (nested)
+ * disconnected, in case the other and had cancelled the request
+ * locally. */
+ if (status == HCI_SUCCESS) {
+ host->reject_reason = 0;
+ host->lmp_connection_complete(&link->btlink);
+ }
+}
+
+static void bt_hci_lmp_connection_request(struct bt_link_s *link)
+{
+ struct bt_hci_s *hci = hci_from_device(link->slave);
+ evt_conn_request params;
+
+ if (hci->conn_req_host) {
+ bt_hci_connection_reject(hci, link->host,
+ HCI_REJECTED_LIMITED_RESOURCES);
+ return;
+ }
+ hci->conn_req_host = link->host;
+ /* TODO: if masked and auto-accept, then auto-accept,
+ * if masked and not auto-accept, then auto-reject */
+ /* TODO: kick the hci->conn_accept_timer, timeout after
+ * hci->conn_accept_tout * 0.625 msec */
+
+ bacpy(&params.bdaddr, &link->host->bd_addr);
+ memcpy(&params.dev_class, &link->host->class, sizeof(params.dev_class));
+ params.link_type = ACL_LINK;
+ bt_hci_event(hci, EVT_CONN_REQUEST, &params, EVT_CONN_REQUEST_SIZE);
+}
+
+static void bt_hci_conn_accept_timeout(void *opaque)
+{
+ struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
+
+ if (!hci->conn_req_host)
+ /* Already accepted or rejected. If the other end cancelled the
+ * connection request then we still have to reject or accept it
+ * and then we'll get a disconnect. */
+ return;
+
+ /* TODO */
+}
+
+/* Remove from the list of devices which we wanted to connect to and
+ * are awaiting a response from. If the callback sees a response from
+ * a device which is not on the list it will assume it's a connection
+ * that's been cancelled by the host in the meantime and immediately
+ * try to detach the link and send a Connection Complete. */
+static int bt_hci_lmp_connection_ready(struct bt_hci_s *hci,
+ bdaddr_t *bdaddr)
+{
+ int i;
+
+ for (i = 0; i < hci->lm.connecting; i ++)
+ if (!bacmp(&hci->lm.awaiting_bdaddr[i], bdaddr)) {
+ if (i < -- hci->lm.connecting)
+ bacpy(&hci->lm.awaiting_bdaddr[i],
+ &hci->lm.awaiting_bdaddr[hci->lm.connecting]);
+ return 0;
+ }
+
+ return 1;
+}
+
+static void bt_hci_lmp_connection_complete(struct bt_link_s *link)
+{
+ struct bt_hci_s *hci = hci_from_device(link->host);
+ evt_conn_complete params;
+ uint16_t handle;
+ uint8_t status = HCI_SUCCESS;
+ int tries = HCI_HANDLES_MAX;
+
+ if (bt_hci_lmp_connection_ready(hci, &link->slave->bd_addr)) {
+ if (!hci->device.reject_reason)
+ link->slave->lmp_disconnect_slave(link);
+ handle = 0;
+ status = HCI_NO_CONNECTION;
+ goto complete;
+ }
+
+ if (hci->device.reject_reason) {
+ handle = 0;
+ status = hci->device.reject_reason;
+ goto complete;
+ }
+
+ /* Make a connection handle */
+ do {
+ while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries)
+ hci->lm.last_handle &= HCI_HANDLES_MAX - 1;
+ handle = hci->lm.last_handle | HCI_HANDLE_OFFSET;
+ } while ((handle == hci->asb_handle || handle == hci->psb_handle) &&
+ tries);
+
+ if (!tries) {
+ link->slave->lmp_disconnect_slave(link);
+ status = HCI_NO_CONNECTION;
+ goto complete;
+ }
+
+ /* Link established */
+ link->handle = handle;
+ bt_hci_lmp_link_establish(hci, link, 1);
+
+complete:
+ params.status = status;
+ params.handle = HNDL(handle);
+ params.link_type = ACL_LINK;
+ bacpy(&params.bdaddr, &link->slave->bd_addr);
+ params.encr_mode = 0x00; /* Encryption not required */
+ bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
+}
+
+static void bt_hci_disconnect(struct bt_hci_s *hci,
+ uint16_t handle, int reason)
+{
+ struct bt_link_s *btlink =
+ hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
+ struct bt_hci_link_s *link;
+ evt_disconn_complete params;
+
+ if (bt_hci_role_master(hci, handle)) {
+ btlink->slave->reject_reason = reason;
+ btlink->slave->lmp_disconnect_slave(btlink);
+ /* The link pointer is invalid from now on */
+
+ goto complete;
+ }
+
+ btlink->host->reject_reason = reason;
+ btlink->host->lmp_disconnect_master(btlink);
+
+ /* We are the slave, we get to clean this burden */
+ link = (struct bt_hci_link_s *) btlink;
+ g_free(link);
+
+complete:
+ bt_hci_lmp_link_teardown(hci, handle);
+
+ params.status = HCI_SUCCESS;
+ params.handle = HNDL(handle);
+ params.reason = HCI_CONNECTION_TERMINATED;
+ bt_hci_event(hci, EVT_DISCONN_COMPLETE,
+ &params, EVT_DISCONN_COMPLETE_SIZE);
+}
+
+/* TODO: use only one function */
+static void bt_hci_lmp_disconnect_host(struct bt_link_s *link)
+{
+ struct bt_hci_s *hci = hci_from_device(link->host);
+ uint16_t handle = link->handle;
+ evt_disconn_complete params;
+
+ bt_hci_lmp_link_teardown(hci, handle);
+
+ params.status = HCI_SUCCESS;
+ params.handle = HNDL(handle);
+ params.reason = hci->device.reject_reason;
+ bt_hci_event(hci, EVT_DISCONN_COMPLETE,
+ &params, EVT_DISCONN_COMPLETE_SIZE);
+}
+
+static void bt_hci_lmp_disconnect_slave(struct bt_link_s *btlink)
+{
+ struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
+ struct bt_hci_s *hci = hci_from_device(btlink->slave);
+ uint16_t handle = link->handle;
+ evt_disconn_complete params;
+
+ g_free(link);
+
+ bt_hci_lmp_link_teardown(hci, handle);
+
+ params.status = HCI_SUCCESS;
+ params.handle = HNDL(handle);
+ params.reason = hci->device.reject_reason;
+ bt_hci_event(hci, EVT_DISCONN_COMPLETE,
+ &params, EVT_DISCONN_COMPLETE_SIZE);
+}
+
+static int bt_hci_name_req(struct bt_hci_s *hci, bdaddr_t *bdaddr)
+{
+ struct bt_device_s *slave;
+ evt_remote_name_req_complete params;
+
+ for (slave = hci->device.net->slave; slave; slave = slave->next)
+ if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr))
+ break;
+ if (!slave)
+ return -ENODEV;
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ params.status = HCI_SUCCESS;
+ bacpy(&params.bdaddr, &slave->bd_addr);
+ pstrcpy(params.name, sizeof(params.name), slave->lmp_name ?: "");
+ bt_hci_event(hci, EVT_REMOTE_NAME_REQ_COMPLETE,
+ &params, EVT_REMOTE_NAME_REQ_COMPLETE_SIZE);
+
+ return 0;
+}
+
+static int bt_hci_features_req(struct bt_hci_s *hci, uint16_t handle)
+{
+ struct bt_device_s *slave;
+ evt_read_remote_features_complete params;
+
+ if (bt_hci_handle_bad(hci, handle))
+ return -ENODEV;
+
+ slave = bt_hci_remote_dev(hci, handle);
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ params.status = HCI_SUCCESS;
+ params.handle = HNDL(handle);
+ params.features[0] = (slave->lmp_caps >> 0) & 0xff;
+ params.features[1] = (slave->lmp_caps >> 8) & 0xff;
+ params.features[2] = (slave->lmp_caps >> 16) & 0xff;
+ params.features[3] = (slave->lmp_caps >> 24) & 0xff;
+ params.features[4] = (slave->lmp_caps >> 32) & 0xff;
+ params.features[5] = (slave->lmp_caps >> 40) & 0xff;
+ params.features[6] = (slave->lmp_caps >> 48) & 0xff;
+ params.features[7] = (slave->lmp_caps >> 56) & 0xff;
+ bt_hci_event(hci, EVT_READ_REMOTE_FEATURES_COMPLETE,
+ &params, EVT_READ_REMOTE_FEATURES_COMPLETE_SIZE);
+
+ return 0;
+}
+
+static int bt_hci_version_req(struct bt_hci_s *hci, uint16_t handle)
+{
+ evt_read_remote_version_complete params;
+
+ if (bt_hci_handle_bad(hci, handle))
+ return -ENODEV;
+
+ bt_hci_remote_dev(hci, handle);
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ params.status = HCI_SUCCESS;
+ params.handle = HNDL(handle);
+ params.lmp_ver = 0x03;
+ params.manufacturer = cpu_to_le16(0xa000);
+ params.lmp_subver = cpu_to_le16(0xa607);
+ bt_hci_event(hci, EVT_READ_REMOTE_VERSION_COMPLETE,
+ &params, EVT_READ_REMOTE_VERSION_COMPLETE_SIZE);
+
+ return 0;
+}
+
+static int bt_hci_clkoffset_req(struct bt_hci_s *hci, uint16_t handle)
+{
+ struct bt_device_s *slave;
+ evt_read_clock_offset_complete params;
+
+ if (bt_hci_handle_bad(hci, handle))
+ return -ENODEV;
+
+ slave = bt_hci_remote_dev(hci, handle);
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ params.status = HCI_SUCCESS;
+ params.handle = HNDL(handle);
+ /* TODO: return the clkoff *differenece* */
+ params.clock_offset = slave->clkoff; /* Note: no swapping */
+ bt_hci_event(hci, EVT_READ_CLOCK_OFFSET_COMPLETE,
+ &params, EVT_READ_CLOCK_OFFSET_COMPLETE_SIZE);
+
+ return 0;
+}
+
+static void bt_hci_event_mode(struct bt_hci_s *hci, struct bt_link_s *link,
+ uint16_t handle)
+{
+ evt_mode_change params = {
+ .status = HCI_SUCCESS,
+ .handle = HNDL(handle),
+ .mode = link->acl_mode,
+ .interval = cpu_to_le16(link->acl_interval),
+ };
+
+ bt_hci_event(hci, EVT_MODE_CHANGE, &params, EVT_MODE_CHANGE_SIZE);
+}
+
+static void bt_hci_lmp_mode_change_master(struct bt_hci_s *hci,
+ struct bt_link_s *link, int mode, uint16_t interval)
+{
+ link->acl_mode = mode;
+ link->acl_interval = interval;
+
+ bt_hci_event_mode(hci, link, link->handle);
+
+ link->slave->lmp_mode_change(link);
+}
+
+static void bt_hci_lmp_mode_change_slave(struct bt_link_s *btlink)
+{
+ struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
+ struct bt_hci_s *hci = hci_from_device(btlink->slave);
+
+ bt_hci_event_mode(hci, btlink, link->handle);
+}
+
+static int bt_hci_mode_change(struct bt_hci_s *hci, uint16_t handle,
+ int interval, int mode)
+{
+ struct bt_hci_master_link_s *link;
+
+ if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle))
+ return -ENODEV;
+
+ link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET];
+ if (link->link->acl_mode != acl_active) {
+ bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED);
+ return 0;
+ }
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ qemu_mod_timer(link->acl_mode_timer, qemu_get_clock_ns(vm_clock) +
+ muldiv64(interval * 625, get_ticks_per_sec(), 1000000));
+ bt_hci_lmp_mode_change_master(hci, link->link, mode, interval);
+
+ return 0;
+}
+
+static int bt_hci_mode_cancel(struct bt_hci_s *hci, uint16_t handle, int mode)
+{
+ struct bt_hci_master_link_s *link;
+
+ if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle))
+ return -ENODEV;
+
+ link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET];
+ if (link->link->acl_mode != mode) {
+ bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED);
+
+ return 0;
+ }
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ qemu_del_timer(link->acl_mode_timer);
+ bt_hci_lmp_mode_change_master(hci, link->link, acl_active, 0);
+
+ return 0;
+}
+
+static void bt_hci_mode_tick(void *opaque)
+{
+ struct bt_link_s *link = opaque;
+ struct bt_hci_s *hci = hci_from_device(link->host);
+
+ bt_hci_lmp_mode_change_master(hci, link, acl_active, 0);
+}
+
+static void bt_hci_reset(struct bt_hci_s *hci)
+{
+ hci->acl_len = 0;
+ hci->last_cmd = 0;
+ hci->lm.connecting = 0;
+
+ hci->event_mask[0] = 0xff;
+ hci->event_mask[1] = 0xff;
+ hci->event_mask[2] = 0xff;
+ hci->event_mask[3] = 0xff;
+ hci->event_mask[4] = 0xff;
+ hci->event_mask[5] = 0x1f;
+ hci->event_mask[6] = 0x00;
+ hci->event_mask[7] = 0x00;
+ hci->device.inquiry_scan = 0;
+ hci->device.page_scan = 0;
+ if (hci->device.lmp_name)
+ g_free((void *) hci->device.lmp_name);
+ hci->device.lmp_name = NULL;
+ hci->device.class[0] = 0x00;
+ hci->device.class[1] = 0x00;
+ hci->device.class[2] = 0x00;
+ hci->voice_setting = 0x0000;
+ hci->conn_accept_tout = 0x1f40;
+ hci->lm.inquiry_mode = 0x00;
+
+ hci->psb_handle = 0x000;
+ hci->asb_handle = 0x000;
+
+ /* XXX: qemu_del_timer(sl->acl_mode_timer); for all links */
+ qemu_del_timer(hci->lm.inquiry_done);
+ qemu_del_timer(hci->lm.inquiry_next);
+ qemu_del_timer(hci->conn_accept_timer);
+}
+
+static void bt_hci_read_local_version_rp(struct bt_hci_s *hci)
+{
+ read_local_version_rp lv = {
+ .status = HCI_SUCCESS,
+ .hci_ver = 0x03,
+ .hci_rev = cpu_to_le16(0xa607),
+ .lmp_ver = 0x03,
+ .manufacturer = cpu_to_le16(0xa000),
+ .lmp_subver = cpu_to_le16(0xa607),
+ };
+
+ bt_hci_event_complete(hci, &lv, READ_LOCAL_VERSION_RP_SIZE);
+}
+
+static void bt_hci_read_local_commands_rp(struct bt_hci_s *hci)
+{
+ read_local_commands_rp lc = {
+ .status = HCI_SUCCESS,
+ .commands = {
+ /* Keep updated! */
+ /* Also, keep in sync with hci->device.lmp_caps in bt_new_hci */
+ 0xbf, 0x80, 0xf9, 0x03, 0xb2, 0xc0, 0x03, 0xc3,
+ 0x00, 0x0f, 0x80, 0x00, 0xc0, 0x00, 0xe8, 0x13,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ },
+ };
+
+ bt_hci_event_complete(hci, &lc, READ_LOCAL_COMMANDS_RP_SIZE);
+}
+
+static void bt_hci_read_local_features_rp(struct bt_hci_s *hci)
+{
+ read_local_features_rp lf = {
+ .status = HCI_SUCCESS,
+ .features = {
+ (hci->device.lmp_caps >> 0) & 0xff,
+ (hci->device.lmp_caps >> 8) & 0xff,
+ (hci->device.lmp_caps >> 16) & 0xff,
+ (hci->device.lmp_caps >> 24) & 0xff,
+ (hci->device.lmp_caps >> 32) & 0xff,
+ (hci->device.lmp_caps >> 40) & 0xff,
+ (hci->device.lmp_caps >> 48) & 0xff,
+ (hci->device.lmp_caps >> 56) & 0xff,
+ },
+ };
+
+ bt_hci_event_complete(hci, &lf, READ_LOCAL_FEATURES_RP_SIZE);
+}
+
+static void bt_hci_read_local_ext_features_rp(struct bt_hci_s *hci, int page)
+{
+ read_local_ext_features_rp lef = {
+ .status = HCI_SUCCESS,
+ .page_num = page,
+ .max_page_num = 0x00,
+ .features = {
+ /* Keep updated! */
+ 0x5f, 0x35, 0x85, 0x7e, 0x9b, 0x19, 0x00, 0x80,
+ },
+ };
+ if (page)
+ memset(lef.features, 0, sizeof(lef.features));
+
+ bt_hci_event_complete(hci, &lef, READ_LOCAL_EXT_FEATURES_RP_SIZE);
+}
+
+static void bt_hci_read_buffer_size_rp(struct bt_hci_s *hci)
+{
+ read_buffer_size_rp bs = {
+ /* This can be made configurable, for one standard USB dongle HCI
+ * the four values are cpu_to_le16(0x0180), 0x40,
+ * cpu_to_le16(0x0008), cpu_to_le16(0x0008). */
+ .status = HCI_SUCCESS,
+ .acl_mtu = cpu_to_le16(0x0200),
+ .sco_mtu = 0,
+ .acl_max_pkt = cpu_to_le16(0x0001),
+ .sco_max_pkt = cpu_to_le16(0x0000),
+ };
+
+ bt_hci_event_complete(hci, &bs, READ_BUFFER_SIZE_RP_SIZE);
+}
+
+/* Deprecated in V2.0 (page 661) */
+static void bt_hci_read_country_code_rp(struct bt_hci_s *hci)
+{
+ read_country_code_rp cc ={
+ .status = HCI_SUCCESS,
+ .country_code = 0x00, /* North America & Europe^1 and Japan */
+ };
+
+ bt_hci_event_complete(hci, &cc, READ_COUNTRY_CODE_RP_SIZE);
+
+ /* ^1. Except France, sorry */
+}
+
+static void bt_hci_read_bd_addr_rp(struct bt_hci_s *hci)
+{
+ read_bd_addr_rp ba = {
+ .status = HCI_SUCCESS,
+ .bdaddr = BAINIT(&hci->device.bd_addr),
+ };
+
+ bt_hci_event_complete(hci, &ba, READ_BD_ADDR_RP_SIZE);
+}
+
+static int bt_hci_link_quality_rp(struct bt_hci_s *hci, uint16_t handle)
+{
+ read_link_quality_rp lq = {
+ .status = HCI_SUCCESS,
+ .handle = HNDL(handle),
+ .link_quality = 0xff,
+ };
+
+ if (bt_hci_handle_bad(hci, handle))
+ lq.status = HCI_NO_CONNECTION;
+
+ bt_hci_event_complete(hci, &lq, READ_LINK_QUALITY_RP_SIZE);
+ return 0;
+}
+
+/* Generate a Command Complete event with only the Status parameter */
+static inline void bt_hci_event_complete_status(struct bt_hci_s *hci,
+ uint8_t status)
+{
+ bt_hci_event_complete(hci, &status, 1);
+}
+
+static inline void bt_hci_event_complete_conn_cancel(struct bt_hci_s *hci,
+ uint8_t status, bdaddr_t *bd_addr)
+{
+ create_conn_cancel_rp params = {
+ .status = status,
+ .bdaddr = BAINIT(bd_addr),
+ };
+
+ bt_hci_event_complete(hci, &params, CREATE_CONN_CANCEL_RP_SIZE);
+}
+
+static inline void bt_hci_event_auth_complete(struct bt_hci_s *hci,
+ uint16_t handle)
+{
+ evt_auth_complete params = {
+ .status = HCI_SUCCESS,
+ .handle = HNDL(handle),
+ };
+
+ bt_hci_event(hci, EVT_AUTH_COMPLETE, &params, EVT_AUTH_COMPLETE_SIZE);
+}
+
+static inline void bt_hci_event_encrypt_change(struct bt_hci_s *hci,
+ uint16_t handle, uint8_t mode)
+{
+ evt_encrypt_change params = {
+ .status = HCI_SUCCESS,
+ .handle = HNDL(handle),
+ .encrypt = mode,
+ };
+
+ bt_hci_event(hci, EVT_ENCRYPT_CHANGE, &params, EVT_ENCRYPT_CHANGE_SIZE);
+}
+
+static inline void bt_hci_event_complete_name_cancel(struct bt_hci_s *hci,
+ bdaddr_t *bd_addr)
+{
+ remote_name_req_cancel_rp params = {
+ .status = HCI_INVALID_PARAMETERS,
+ .bdaddr = BAINIT(bd_addr),
+ };
+
+ bt_hci_event_complete(hci, &params, REMOTE_NAME_REQ_CANCEL_RP_SIZE);
+}
+
+static inline void bt_hci_event_read_remote_ext_features(struct bt_hci_s *hci,
+ uint16_t handle)
+{
+ evt_read_remote_ext_features_complete params = {
+ .status = HCI_UNSUPPORTED_FEATURE,
+ .handle = HNDL(handle),
+ /* Rest uninitialised */
+ };
+
+ bt_hci_event(hci, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE,
+ &params, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE_SIZE);
+}
+
+static inline void bt_hci_event_complete_lmp_handle(struct bt_hci_s *hci,
+ uint16_t handle)
+{
+ read_lmp_handle_rp params = {
+ .status = HCI_NO_CONNECTION,
+ .handle = HNDL(handle),
+ .reserved = 0,
+ /* Rest uninitialised */
+ };
+
+ bt_hci_event_complete(hci, &params, READ_LMP_HANDLE_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_role_discovery(struct bt_hci_s *hci,
+ int status, uint16_t handle, int master)
+{
+ role_discovery_rp params = {
+ .status = status,
+ .handle = HNDL(handle),
+ .role = master ? 0x00 : 0x01,
+ };
+
+ bt_hci_event_complete(hci, &params, ROLE_DISCOVERY_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_flush(struct bt_hci_s *hci,
+ int status, uint16_t handle)
+{
+ flush_rp params = {
+ .status = status,
+ .handle = HNDL(handle),
+ };
+
+ bt_hci_event_complete(hci, &params, FLUSH_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_read_local_name(struct bt_hci_s *hci)
+{
+ read_local_name_rp params;
+ params.status = HCI_SUCCESS;
+ memset(params.name, 0, sizeof(params.name));
+ if (hci->device.lmp_name)
+ pstrcpy(params.name, sizeof(params.name), hci->device.lmp_name);
+
+ bt_hci_event_complete(hci, &params, READ_LOCAL_NAME_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_read_conn_accept_timeout(
+ struct bt_hci_s *hci)
+{
+ read_conn_accept_timeout_rp params = {
+ .status = HCI_SUCCESS,
+ .timeout = cpu_to_le16(hci->conn_accept_tout),
+ };
+
+ bt_hci_event_complete(hci, &params, READ_CONN_ACCEPT_TIMEOUT_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_read_scan_enable(struct bt_hci_s *hci)
+{
+ read_scan_enable_rp params = {
+ .status = HCI_SUCCESS,
+ .enable =
+ (hci->device.inquiry_scan ? SCAN_INQUIRY : 0) |
+ (hci->device.page_scan ? SCAN_PAGE : 0),
+ };
+
+ bt_hci_event_complete(hci, &params, READ_SCAN_ENABLE_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_read_local_class(struct bt_hci_s *hci)
+{
+ read_class_of_dev_rp params;
+
+ params.status = HCI_SUCCESS;
+ memcpy(params.dev_class, hci->device.class, sizeof(params.dev_class));
+
+ bt_hci_event_complete(hci, &params, READ_CLASS_OF_DEV_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_voice_setting(struct bt_hci_s *hci)
+{
+ read_voice_setting_rp params = {
+ .status = HCI_SUCCESS,
+ .voice_setting = hci->voice_setting, /* Note: no swapping */
+ };
+
+ bt_hci_event_complete(hci, &params, READ_VOICE_SETTING_RP_SIZE);
+}
+
+static inline void bt_hci_event_complete_read_inquiry_mode(
+ struct bt_hci_s *hci)
+{
+ read_inquiry_mode_rp params = {
+ .status = HCI_SUCCESS,
+ .mode = hci->lm.inquiry_mode,
+ };
+
+ bt_hci_event_complete(hci, &params, READ_INQUIRY_MODE_RP_SIZE);
+}
+
+static inline void bt_hci_event_num_comp_pkts(struct bt_hci_s *hci,
+ uint16_t handle, int packets)
+{
+ uint16_t buf[EVT_NUM_COMP_PKTS_SIZE(1) / 2 + 1];
+ evt_num_comp_pkts *params = (void *) ((uint8_t *) buf + 1);
+
+ params->num_hndl = 1;
+ params->connection->handle = HNDL(handle);
+ params->connection->num_packets = cpu_to_le16(packets);
+
+ bt_hci_event(hci, EVT_NUM_COMP_PKTS, params, EVT_NUM_COMP_PKTS_SIZE(1));
+}
+
+static void bt_submit_hci(struct HCIInfo *info,
+ const uint8_t *data, int length)
+{
+ struct bt_hci_s *hci = hci_from_info(info);
+ uint16_t cmd;
+ int paramlen, i;
+
+ if (length < HCI_COMMAND_HDR_SIZE)
+ goto short_hci;
+
+ memcpy(&hci->last_cmd, data, 2);
+
+ cmd = (data[1] << 8) | data[0];
+ paramlen = data[2];
+ if (cmd_opcode_ogf(cmd) == 0 || cmd_opcode_ocf(cmd) == 0) /* NOP */
+ return;
+
+ data += HCI_COMMAND_HDR_SIZE;
+ length -= HCI_COMMAND_HDR_SIZE;
+
+ if (paramlen > length)
+ return;
+
+#define PARAM(cmd, param) (((cmd##_cp *) data)->param)
+#define PARAM16(cmd, param) le16_to_cpup(&PARAM(cmd, param))
+#define PARAMHANDLE(cmd) HNDL(PARAM(cmd, handle))
+#define LENGTH_CHECK(cmd) if (length < sizeof(cmd##_cp)) goto short_hci
+ /* Note: the supported commands bitmask in bt_hci_read_local_commands_rp
+ * needs to be updated every time a command is implemented here! */
+ switch (cmd) {
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY):
+ LENGTH_CHECK(inquiry);
+
+ if (PARAM(inquiry, length) < 1) {
+ bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ hci->lm.inquire = 1;
+ hci->lm.periodic = 0;
+ hci->lm.responses_left = PARAM(inquiry, num_rsp) ?: INT_MAX;
+ hci->lm.responses = 0;
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_inquiry_start(hci, PARAM(inquiry, length));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY_CANCEL):
+ if (!hci->lm.inquire || hci->lm.periodic) {
+ fprintf(stderr, "%s: Inquiry Cancel should only be issued after "
+ "the Inquiry command has been issued, a Command "
+ "Status event has been received for the Inquiry "
+ "command, and before the Inquiry Complete event "
+ "occurs", __FUNCTION__);
+ bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED);
+ break;
+ }
+
+ hci->lm.inquire = 0;
+ qemu_del_timer(hci->lm.inquiry_done);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_PERIODIC_INQUIRY):
+ LENGTH_CHECK(periodic_inquiry);
+
+ if (!(PARAM(periodic_inquiry, length) <
+ PARAM16(periodic_inquiry, min_period) &&
+ PARAM16(periodic_inquiry, min_period) <
+ PARAM16(periodic_inquiry, max_period)) ||
+ PARAM(periodic_inquiry, length) < 1 ||
+ PARAM16(periodic_inquiry, min_period) < 2 ||
+ PARAM16(periodic_inquiry, max_period) < 3) {
+ bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ hci->lm.inquire = 1;
+ hci->lm.periodic = 1;
+ hci->lm.responses_left = PARAM(periodic_inquiry, num_rsp);
+ hci->lm.responses = 0;
+ hci->lm.inquiry_period = PARAM16(periodic_inquiry, max_period);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ bt_hci_inquiry_start(hci, PARAM(periodic_inquiry, length));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_EXIT_PERIODIC_INQUIRY):
+ if (!hci->lm.inquire || !hci->lm.periodic) {
+ fprintf(stderr, "%s: Inquiry Cancel should only be issued after "
+ "the Inquiry command has been issued, a Command "
+ "Status event has been received for the Inquiry "
+ "command, and before the Inquiry Complete event "
+ "occurs", __FUNCTION__);
+ bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED);
+ break;
+ }
+ hci->lm.inquire = 0;
+ qemu_del_timer(hci->lm.inquiry_done);
+ qemu_del_timer(hci->lm.inquiry_next);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN):
+ LENGTH_CHECK(create_conn);
+
+ if (hci->lm.connecting >= HCI_HANDLES_MAX) {
+ bt_hci_event_status(hci, HCI_REJECTED_LIMITED_RESOURCES);
+ break;
+ }
+ bt_hci_event_status(hci, HCI_SUCCESS);
+
+ if (bt_hci_connect(hci, &PARAM(create_conn, bdaddr)))
+ bt_hci_connection_reject_event(hci, &PARAM(create_conn, bdaddr));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_DISCONNECT):
+ LENGTH_CHECK(disconnect);
+
+ if (bt_hci_handle_bad(hci, PARAMHANDLE(disconnect))) {
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+ }
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_disconnect(hci, PARAMHANDLE(disconnect),
+ PARAM(disconnect, reason));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN_CANCEL):
+ LENGTH_CHECK(create_conn_cancel);
+
+ if (bt_hci_lmp_connection_ready(hci,
+ &PARAM(create_conn_cancel, bdaddr))) {
+ for (i = 0; i < HCI_HANDLES_MAX; i ++)
+ if (bt_hci_role_master(hci, i) && hci->lm.handle[i].link &&
+ !bacmp(&hci->lm.handle[i].link->slave->bd_addr,
+ &PARAM(create_conn_cancel, bdaddr)))
+ break;
+
+ bt_hci_event_complete_conn_cancel(hci, i < HCI_HANDLES_MAX ?
+ HCI_ACL_CONNECTION_EXISTS : HCI_NO_CONNECTION,
+ &PARAM(create_conn_cancel, bdaddr));
+ } else
+ bt_hci_event_complete_conn_cancel(hci, HCI_SUCCESS,
+ &PARAM(create_conn_cancel, bdaddr));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ):
+ LENGTH_CHECK(accept_conn_req);
+
+ if (!hci->conn_req_host ||
+ bacmp(&PARAM(accept_conn_req, bdaddr),
+ &hci->conn_req_host->bd_addr)) {
+ bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_connection_accept(hci, hci->conn_req_host);
+ hci->conn_req_host = NULL;
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_REJECT_CONN_REQ):
+ LENGTH_CHECK(reject_conn_req);
+
+ if (!hci->conn_req_host ||
+ bacmp(&PARAM(reject_conn_req, bdaddr),
+ &hci->conn_req_host->bd_addr)) {
+ bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_connection_reject(hci, hci->conn_req_host,
+ PARAM(reject_conn_req, reason));
+ bt_hci_connection_reject_event(hci, &hci->conn_req_host->bd_addr);
+ hci->conn_req_host = NULL;
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_AUTH_REQUESTED):
+ LENGTH_CHECK(auth_requested);
+
+ if (bt_hci_handle_bad(hci, PARAMHANDLE(auth_requested)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ else {
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_event_auth_complete(hci, PARAMHANDLE(auth_requested));
+ }
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT):
+ LENGTH_CHECK(set_conn_encrypt);
+
+ if (bt_hci_handle_bad(hci, PARAMHANDLE(set_conn_encrypt)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ else {
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_event_encrypt_change(hci,
+ PARAMHANDLE(set_conn_encrypt),
+ PARAM(set_conn_encrypt, encrypt));
+ }
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ):
+ LENGTH_CHECK(remote_name_req);
+
+ if (bt_hci_name_req(hci, &PARAM(remote_name_req, bdaddr)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ_CANCEL):
+ LENGTH_CHECK(remote_name_req_cancel);
+
+ bt_hci_event_complete_name_cancel(hci,
+ &PARAM(remote_name_req_cancel, bdaddr));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_FEATURES):
+ LENGTH_CHECK(read_remote_features);
+
+ if (bt_hci_features_req(hci, PARAMHANDLE(read_remote_features)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_EXT_FEATURES):
+ LENGTH_CHECK(read_remote_ext_features);
+
+ if (bt_hci_handle_bad(hci, PARAMHANDLE(read_remote_ext_features)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ else {
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ bt_hci_event_read_remote_ext_features(hci,
+ PARAMHANDLE(read_remote_ext_features));
+ }
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_VERSION):
+ LENGTH_CHECK(read_remote_version);
+
+ if (bt_hci_version_req(hci, PARAMHANDLE(read_remote_version)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_CLOCK_OFFSET):
+ LENGTH_CHECK(read_clock_offset);
+
+ if (bt_hci_clkoffset_req(hci, PARAMHANDLE(read_clock_offset)))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_LMP_HANDLE):
+ LENGTH_CHECK(read_lmp_handle);
+
+ /* TODO: */
+ bt_hci_event_complete_lmp_handle(hci, PARAMHANDLE(read_lmp_handle));
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_POLICY, OCF_HOLD_MODE):
+ LENGTH_CHECK(hold_mode);
+
+ if (PARAM16(hold_mode, min_interval) >
+ PARAM16(hold_mode, max_interval) ||
+ PARAM16(hold_mode, min_interval) < 0x0002 ||
+ PARAM16(hold_mode, max_interval) > 0xff00 ||
+ (PARAM16(hold_mode, min_interval) & 1) ||
+ (PARAM16(hold_mode, max_interval) & 1)) {
+ bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ if (bt_hci_mode_change(hci, PARAMHANDLE(hold_mode),
+ PARAM16(hold_mode, max_interval),
+ acl_hold))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_POLICY, OCF_PARK_MODE):
+ LENGTH_CHECK(park_mode);
+
+ if (PARAM16(park_mode, min_interval) >
+ PARAM16(park_mode, max_interval) ||
+ PARAM16(park_mode, min_interval) < 0x000e ||
+ (PARAM16(park_mode, min_interval) & 1) ||
+ (PARAM16(park_mode, max_interval) & 1)) {
+ bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ if (bt_hci_mode_change(hci, PARAMHANDLE(park_mode),
+ PARAM16(park_mode, max_interval),
+ acl_parked))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_POLICY, OCF_EXIT_PARK_MODE):
+ LENGTH_CHECK(exit_park_mode);
+
+ if (bt_hci_mode_cancel(hci, PARAMHANDLE(exit_park_mode),
+ acl_parked))
+ bt_hci_event_status(hci, HCI_NO_CONNECTION);
+ break;
+
+ case cmd_opcode_pack(OGF_LINK_POLICY, OCF_ROLE_DISCOVERY):
+ LENGTH_CHECK(role_discovery);
+
+ if (bt_hci_handle_bad(hci, PARAMHANDLE(role_discovery)))
+ bt_hci_event_complete_role_discovery(hci,
+ HCI_NO_CONNECTION, PARAMHANDLE(role_discovery), 0);
+ else
+ bt_hci_event_complete_role_discovery(hci,
+ HCI_SUCCESS, PARAMHANDLE(role_discovery),
+ bt_hci_role_master(hci,
+ PARAMHANDLE(role_discovery)));
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_MASK):
+ LENGTH_CHECK(set_event_mask);
+
+ memcpy(hci->event_mask, PARAM(set_event_mask, mask), 8);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_RESET):
+ bt_hci_reset(hci);
+ bt_hci_event_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_FLT):
+ if (length >= 1 && PARAM(set_event_flt, flt_type) == FLT_CLEAR_ALL)
+ /* No length check */;
+ else
+ LENGTH_CHECK(set_event_flt);
+
+ /* Filters are not implemented */
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_FLUSH):
+ LENGTH_CHECK(flush);
+
+ if (bt_hci_handle_bad(hci, PARAMHANDLE(flush)))
+ bt_hci_event_complete_flush(hci,
+ HCI_NO_CONNECTION, PARAMHANDLE(flush));
+ else {
+ /* TODO: ordering? */
+ bt_hci_event(hci, EVT_FLUSH_OCCURRED,
+ &PARAM(flush, handle),
+ EVT_FLUSH_OCCURRED_SIZE);
+ bt_hci_event_complete_flush(hci,
+ HCI_SUCCESS, PARAMHANDLE(flush));
+ }
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME):
+ LENGTH_CHECK(change_local_name);
+
+ if (hci->device.lmp_name)
+ g_free((void *) hci->device.lmp_name);
+ hci->device.lmp_name = g_strndup(PARAM(change_local_name, name),
+ sizeof(PARAM(change_local_name, name)));
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_LOCAL_NAME):
+ bt_hci_event_complete_read_local_name(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CONN_ACCEPT_TIMEOUT):
+ bt_hci_event_complete_read_conn_accept_timeout(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CONN_ACCEPT_TIMEOUT):
+ /* TODO */
+ LENGTH_CHECK(write_conn_accept_timeout);
+
+ if (PARAM16(write_conn_accept_timeout, timeout) < 0x0001 ||
+ PARAM16(write_conn_accept_timeout, timeout) > 0xb540) {
+ bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ hci->conn_accept_tout = PARAM16(write_conn_accept_timeout, timeout);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_SCAN_ENABLE):
+ bt_hci_event_complete_read_scan_enable(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE):
+ LENGTH_CHECK(write_scan_enable);
+
+ /* TODO: check that the remaining bits are all 0 */
+ hci->device.inquiry_scan =
+ !!(PARAM(write_scan_enable, scan_enable) & SCAN_INQUIRY);
+ hci->device.page_scan =
+ !!(PARAM(write_scan_enable, scan_enable) & SCAN_PAGE);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CLASS_OF_DEV):
+ bt_hci_event_complete_read_local_class(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV):
+ LENGTH_CHECK(write_class_of_dev);
+
+ memcpy(hci->device.class, PARAM(write_class_of_dev, dev_class),
+ sizeof(PARAM(write_class_of_dev, dev_class)));
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_VOICE_SETTING):
+ bt_hci_event_complete_voice_setting(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING):
+ LENGTH_CHECK(write_voice_setting);
+
+ hci->voice_setting = PARAM(write_voice_setting, voice_setting);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_HOST_NUMBER_OF_COMPLETED_PACKETS):
+ if (length < data[0] * 2 + 1)
+ goto short_hci;
+
+ for (i = 0; i < data[0]; i ++)
+ if (bt_hci_handle_bad(hci,
+ data[i * 2 + 1] | (data[i * 2 + 2] << 8)))
+ bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_INQUIRY_MODE):
+ /* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x40)
+ * else
+ * goto unknown_command */
+ bt_hci_event_complete_read_inquiry_mode(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_INQUIRY_MODE):
+ /* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x80)
+ * else
+ * goto unknown_command */
+ LENGTH_CHECK(write_inquiry_mode);
+
+ if (PARAM(write_inquiry_mode, mode) > 0x01) {
+ bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+
+ hci->lm.inquiry_mode = PARAM(write_inquiry_mode, mode);
+ bt_hci_event_complete_status(hci, HCI_SUCCESS);
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_VERSION):
+ bt_hci_read_local_version_rp(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_COMMANDS):
+ bt_hci_read_local_commands_rp(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_FEATURES):
+ bt_hci_read_local_features_rp(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_EXT_FEATURES):
+ LENGTH_CHECK(read_local_ext_features);
+
+ bt_hci_read_local_ext_features_rp(hci,
+ PARAM(read_local_ext_features, page_num));
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BUFFER_SIZE):
+ bt_hci_read_buffer_size_rp(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_COUNTRY_CODE):
+ bt_hci_read_country_code_rp(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BD_ADDR):
+ bt_hci_read_bd_addr_rp(hci);
+ break;
+
+ case cmd_opcode_pack(OGF_STATUS_PARAM, OCF_READ_LINK_QUALITY):
+ LENGTH_CHECK(read_link_quality);
+
+ bt_hci_link_quality_rp(hci, PARAMHANDLE(read_link_quality));
+ break;
+
+ default:
+ bt_hci_event_status(hci, HCI_UNKNOWN_COMMAND);
+ break;
+
+ short_hci:
+ fprintf(stderr, "%s: HCI packet too short (%iB)\n",
+ __FUNCTION__, length);
+ bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
+ break;
+ }
+}
+
+/* We could perform fragmentation here, we can't do "recombination" because
+ * at this layer the length of the payload is not know ahead, so we only
+ * know that a packet contained the last fragment of the SDU when the next
+ * SDU starts. */
+static inline void bt_hci_lmp_acl_data(struct bt_hci_s *hci, uint16_t handle,
+ const uint8_t *data, int start, int len)
+{
+ struct hci_acl_hdr *pkt = (void *) hci->acl_buf;
+
+ /* TODO: packet flags */
+ /* TODO: avoid memcpy'ing */
+
+ if (len + HCI_ACL_HDR_SIZE > sizeof(hci->acl_buf)) {
+ fprintf(stderr, "%s: can't take ACL packets %i bytes long\n",
+ __FUNCTION__, len);
+ return;
+ }
+ memcpy(hci->acl_buf + HCI_ACL_HDR_SIZE, data, len);
+
+ pkt->handle = cpu_to_le16(
+ acl_handle_pack(handle, start ? ACL_START : ACL_CONT));
+ pkt->dlen = cpu_to_le16(len);
+ hci->info.acl_recv(hci->info.opaque,
+ hci->acl_buf, len + HCI_ACL_HDR_SIZE);
+}
+
+static void bt_hci_lmp_acl_data_slave(struct bt_link_s *btlink,
+ const uint8_t *data, int start, int len)
+{
+ struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
+
+ bt_hci_lmp_acl_data(hci_from_device(btlink->slave),
+ link->handle, data, start, len);
+}
+
+static void bt_hci_lmp_acl_data_host(struct bt_link_s *link,
+ const uint8_t *data, int start, int len)
+{
+ bt_hci_lmp_acl_data(hci_from_device(link->host),
+ link->handle, data, start, len);
+}
+
+static void bt_submit_acl(struct HCIInfo *info,
+ const uint8_t *data, int length)
+{
+ struct bt_hci_s *hci = hci_from_info(info);
+ uint16_t handle;
+ int datalen, flags;
+ struct bt_link_s *link;
+
+ if (length < HCI_ACL_HDR_SIZE) {
+ fprintf(stderr, "%s: ACL packet too short (%iB)\n",
+ __FUNCTION__, length);
+ return;
+ }
+
+ handle = acl_handle((data[1] << 8) | data[0]);
+ flags = acl_flags((data[1] << 8) | data[0]);
+ datalen = (data[3] << 8) | data[2];
+ data += HCI_ACL_HDR_SIZE;
+ length -= HCI_ACL_HDR_SIZE;
+
+ if (bt_hci_handle_bad(hci, handle)) {
+ fprintf(stderr, "%s: invalid ACL handle %03x\n",
+ __FUNCTION__, handle);
+ /* TODO: signal an error */
+ return;
+ }
+ handle &= ~HCI_HANDLE_OFFSET;
+
+ if (datalen > length) {
+ fprintf(stderr, "%s: ACL packet too short (%iB < %iB)\n",
+ __FUNCTION__, length, datalen);
+ return;
+ }
+
+ link = hci->lm.handle[handle].link;
+
+ if ((flags & ~3) == ACL_ACTIVE_BCAST) {
+ if (!hci->asb_handle)
+ hci->asb_handle = handle;
+ else if (handle != hci->asb_handle) {
+ fprintf(stderr, "%s: Bad handle %03x in Active Slave Broadcast\n",
+ __FUNCTION__, handle);
+ /* TODO: signal an error */
+ return;
+ }
+
+ /* TODO */
+ }
+
+ if ((flags & ~3) == ACL_PICO_BCAST) {
+ if (!hci->psb_handle)
+ hci->psb_handle = handle;
+ else if (handle != hci->psb_handle) {
+ fprintf(stderr, "%s: Bad handle %03x in Parked Slave Broadcast\n",
+ __FUNCTION__, handle);
+ /* TODO: signal an error */
+ return;
+ }
+
+ /* TODO */
+ }
+
+ /* TODO: increase counter and send EVT_NUM_COMP_PKTS */
+ bt_hci_event_num_comp_pkts(hci, handle | HCI_HANDLE_OFFSET, 1);
+
+ /* Do this last as it can trigger further events even in this HCI */
+ hci->lm.handle[handle].lmp_acl_data(link, data,
+ (flags & 3) == ACL_START, length);
+}
+
+static void bt_submit_sco(struct HCIInfo *info,
+ const uint8_t *data, int length)
+{
+ struct bt_hci_s *hci = hci_from_info(info);
+ uint16_t handle;
+ int datalen;
+
+ if (length < 3)
+ return;
+
+ handle = acl_handle((data[1] << 8) | data[0]);
+ datalen = data[2];
+ length -= 3;
+
+ if (bt_hci_handle_bad(hci, handle)) {
+ fprintf(stderr, "%s: invalid SCO handle %03x\n",
+ __FUNCTION__, handle);
+ return;
+ }
+
+ if (datalen > length) {
+ fprintf(stderr, "%s: SCO packet too short (%iB < %iB)\n",
+ __FUNCTION__, length, datalen);
+ return;
+ }
+
+ /* TODO */
+
+ /* TODO: increase counter and send EVT_NUM_COMP_PKTS if synchronous
+ * Flow Control is enabled.
+ * (See Read/Write_Synchronous_Flow_Control_Enable on page 513 and
+ * page 514.) */
+}
+
+static uint8_t *bt_hci_evt_packet(void *opaque)
+{
+ /* TODO: allocate a packet from upper layer */
+ struct bt_hci_s *s = opaque;
+
+ return s->evt_buf;
+}
+
+static void bt_hci_evt_submit(void *opaque, int len)
+{
+ /* TODO: notify upper layer */
+ struct bt_hci_s *s = opaque;
+
+ s->info.evt_recv(s->info.opaque, s->evt_buf, len);
+}
+
+static int bt_hci_bdaddr_set(struct HCIInfo *info, const uint8_t *bd_addr)
+{
+ struct bt_hci_s *hci = hci_from_info(info);
+
+ bacpy(&hci->device.bd_addr, (const bdaddr_t *) bd_addr);
+ return 0;
+}
+
+static void bt_hci_done(struct HCIInfo *info);
+static void bt_hci_destroy(struct bt_device_s *dev)
+{
+ struct bt_hci_s *hci = hci_from_device(dev);
+
+ bt_hci_done(&hci->info);
+}
+
+struct HCIInfo *bt_new_hci(struct bt_scatternet_s *net)
+{
+ struct bt_hci_s *s = g_malloc0(sizeof(struct bt_hci_s));
+
+ s->lm.inquiry_done = qemu_new_timer_ns(vm_clock, bt_hci_inquiry_done, s);
+ s->lm.inquiry_next = qemu_new_timer_ns(vm_clock, bt_hci_inquiry_next, s);
+ s->conn_accept_timer =
+ qemu_new_timer_ns(vm_clock, bt_hci_conn_accept_timeout, s);
+
+ s->evt_packet = bt_hci_evt_packet;
+ s->evt_submit = bt_hci_evt_submit;
+ s->opaque = s;
+
+ bt_device_init(&s->device, net);
+ s->device.lmp_connection_request = bt_hci_lmp_connection_request;
+ s->device.lmp_connection_complete = bt_hci_lmp_connection_complete;
+ s->device.lmp_disconnect_master = bt_hci_lmp_disconnect_host;
+ s->device.lmp_disconnect_slave = bt_hci_lmp_disconnect_slave;
+ s->device.lmp_acl_data = bt_hci_lmp_acl_data_slave;
+ s->device.lmp_acl_resp = bt_hci_lmp_acl_data_host;
+ s->device.lmp_mode_change = bt_hci_lmp_mode_change_slave;
+
+ /* Keep updated! */
+ /* Also keep in sync with supported commands bitmask in
+ * bt_hci_read_local_commands_rp */
+ s->device.lmp_caps = 0x8000199b7e85355fll;
+
+ bt_hci_reset(s);
+
+ s->info.cmd_send = bt_submit_hci;
+ s->info.sco_send = bt_submit_sco;
+ s->info.acl_send = bt_submit_acl;
+ s->info.bdaddr_set = bt_hci_bdaddr_set;
+
+ s->device.handle_destroy = bt_hci_destroy;
+
+ return &s->info;
+}
+
+static void bt_hci_done(struct HCIInfo *info)
+{
+ struct bt_hci_s *hci = hci_from_info(info);
+ int handle;
+
+ bt_device_done(&hci->device);
+
+ if (hci->device.lmp_name)
+ g_free((void *) hci->device.lmp_name);
+
+ /* Be gentle and send DISCONNECT to all connected peers and those
+ * currently waiting for us to accept or reject a connection request.
+ * This frees the links. */
+ if (hci->conn_req_host) {
+ bt_hci_connection_reject(hci,
+ hci->conn_req_host, HCI_OE_POWER_OFF);
+ return;
+ }
+
+ for (handle = HCI_HANDLE_OFFSET;
+ handle < (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX); handle ++)
+ if (!bt_hci_handle_bad(hci, handle))
+ bt_hci_disconnect(hci, handle, HCI_OE_POWER_OFF);
+
+ /* TODO: this is not enough actually, there may be slaves from whom
+ * we have requested a connection who will soon (or not) respond with
+ * an accept or a reject, so we should also check if hci->lm.connecting
+ * is non-zero and if so, avoid freeing the hci but otherwise disappear
+ * from all qemu social life (e.g. stop scanning and request to be
+ * removed from s->device.net) and arrange for
+ * s->device.lmp_connection_complete to free the remaining bits once
+ * hci->lm.awaiting_bdaddr[] is empty. */
+
+ qemu_free_timer(hci->lm.inquiry_done);
+ qemu_free_timer(hci->lm.inquiry_next);
+ qemu_free_timer(hci->conn_accept_timer);
+
+ g_free(hci);
+}
diff --git a/hw/bt/hid.c b/hw/bt/hid.c
new file mode 100644
index 0000000000..af494e1e06
--- /dev/null
+++ b/hw/bt/hid.c
@@ -0,0 +1,553 @@
+/*
+ * QEMU Bluetooth HID Profile wrapper for USB HID.
+ *
+ * Copyright (C) 2007-2008 OpenMoko, Inc.
+ * Written by Andrzej Zaborowski <andrew@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "qemu/timer.h"
+#include "ui/console.h"
+#include "hw/input/hid.h"
+#include "hw/bt.h"
+
+enum hid_transaction_req {
+ BT_HANDSHAKE = 0x0,
+ BT_HID_CONTROL = 0x1,
+ BT_GET_REPORT = 0x4,
+ BT_SET_REPORT = 0x5,
+ BT_GET_PROTOCOL = 0x6,
+ BT_SET_PROTOCOL = 0x7,
+ BT_GET_IDLE = 0x8,
+ BT_SET_IDLE = 0x9,
+ BT_DATA = 0xa,
+ BT_DATC = 0xb,
+};
+
+enum hid_transaction_handshake {
+ BT_HS_SUCCESSFUL = 0x0,
+ BT_HS_NOT_READY = 0x1,
+ BT_HS_ERR_INVALID_REPORT_ID = 0x2,
+ BT_HS_ERR_UNSUPPORTED_REQUEST = 0x3,
+ BT_HS_ERR_INVALID_PARAMETER = 0x4,
+ BT_HS_ERR_UNKNOWN = 0xe,
+ BT_HS_ERR_FATAL = 0xf,
+};
+
+enum hid_transaction_control {
+ BT_HC_NOP = 0x0,
+ BT_HC_HARD_RESET = 0x1,
+ BT_HC_SOFT_RESET = 0x2,
+ BT_HC_SUSPEND = 0x3,
+ BT_HC_EXIT_SUSPEND = 0x4,
+ BT_HC_VIRTUAL_CABLE_UNPLUG = 0x5,
+};
+
+enum hid_protocol {
+ BT_HID_PROTO_BOOT = 0,
+ BT_HID_PROTO_REPORT = 1,
+};
+
+enum hid_boot_reportid {
+ BT_HID_BOOT_INVALID = 0,
+ BT_HID_BOOT_KEYBOARD,
+ BT_HID_BOOT_MOUSE,
+};
+
+enum hid_data_pkt {
+ BT_DATA_OTHER = 0,
+ BT_DATA_INPUT,
+ BT_DATA_OUTPUT,
+ BT_DATA_FEATURE,
+};
+
+#define BT_HID_MTU 48
+
+/* HID interface requests */
+#define GET_REPORT 0xa101
+#define GET_IDLE 0xa102
+#define GET_PROTOCOL 0xa103
+#define SET_REPORT 0x2109
+#define SET_IDLE 0x210a
+#define SET_PROTOCOL 0x210b
+
+struct bt_hid_device_s {
+ struct bt_l2cap_device_s btdev;
+ struct bt_l2cap_conn_params_s *control;
+ struct bt_l2cap_conn_params_s *interrupt;
+ HIDState hid;
+
+ int proto;
+ int connected;
+ int data_type;
+ int intr_state;
+ struct {
+ int len;
+ uint8_t buffer[1024];
+ } dataother, datain, dataout, feature, intrdataout;
+ enum {
+ bt_state_ready,
+ bt_state_transaction,
+ bt_state_suspend,
+ } state;
+};
+
+static void bt_hid_reset(struct bt_hid_device_s *s)
+{
+ struct bt_scatternet_s *net = s->btdev.device.net;
+
+ /* Go as far as... */
+ bt_l2cap_device_done(&s->btdev);
+ bt_l2cap_device_init(&s->btdev, net);
+
+ hid_reset(&s->hid);
+ s->proto = BT_HID_PROTO_REPORT;
+ s->state = bt_state_ready;
+ s->dataother.len = 0;
+ s->datain.len = 0;
+ s->dataout.len = 0;
+ s->feature.len = 0;
+ s->intrdataout.len = 0;
+ s->intr_state = 0;
+}
+
+static int bt_hid_out(struct bt_hid_device_s *s)
+{
+ if (s->data_type == BT_DATA_OUTPUT) {
+ /* nothing */
+ ;
+ }
+
+ if (s->data_type == BT_DATA_FEATURE) {
+ /* XXX:
+ * does this send a USB_REQ_CLEAR_FEATURE/USB_REQ_SET_FEATURE
+ * or a SET_REPORT? */
+ ;
+ }
+
+ return -1;
+}
+
+static int bt_hid_in(struct bt_hid_device_s *s)
+{
+ s->datain.len = hid_keyboard_poll(&s->hid, s->datain.buffer,
+ sizeof(s->datain.buffer));
+ return s->datain.len;
+}
+
+static void bt_hid_send_handshake(struct bt_hid_device_s *s, int result)
+{
+ *s->control->sdu_out(s->control, 1) =
+ (BT_HANDSHAKE << 4) | result;
+ s->control->sdu_submit(s->control);
+}
+
+static void bt_hid_send_control(struct bt_hid_device_s *s, int operation)
+{
+ *s->control->sdu_out(s->control, 1) =
+ (BT_HID_CONTROL << 4) | operation;
+ s->control->sdu_submit(s->control);
+}
+
+static void bt_hid_disconnect(struct bt_hid_device_s *s)
+{
+ /* Disconnect s->control and s->interrupt */
+}
+
+static void bt_hid_send_data(struct bt_l2cap_conn_params_s *ch, int type,
+ const uint8_t *data, int len)
+{
+ uint8_t *pkt, hdr = (BT_DATA << 4) | type;
+ int plen;
+
+ do {
+ plen = MIN(len, ch->remote_mtu - 1);
+ pkt = ch->sdu_out(ch, plen + 1);
+
+ pkt[0] = hdr;
+ if (plen)
+ memcpy(pkt + 1, data, plen);
+ ch->sdu_submit(ch);
+
+ len -= plen;
+ data += plen;
+ hdr = (BT_DATC << 4) | type;
+ } while (plen == ch->remote_mtu - 1);
+}
+
+static void bt_hid_control_transaction(struct bt_hid_device_s *s,
+ const uint8_t *data, int len)
+{
+ uint8_t type, parameter;
+ int rlen, ret = -1;
+ if (len < 1)
+ return;
+
+ type = data[0] >> 4;
+ parameter = data[0] & 0xf;
+
+ switch (type) {
+ case BT_HANDSHAKE:
+ case BT_DATA:
+ switch (parameter) {
+ default:
+ /* These are not expected to be sent this direction. */
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ }
+ break;
+
+ case BT_HID_CONTROL:
+ if (len != 1 || (parameter != BT_HC_VIRTUAL_CABLE_UNPLUG &&
+ s->state == bt_state_transaction)) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ switch (parameter) {
+ case BT_HC_NOP:
+ break;
+ case BT_HC_HARD_RESET:
+ case BT_HC_SOFT_RESET:
+ bt_hid_reset(s);
+ break;
+ case BT_HC_SUSPEND:
+ if (s->state == bt_state_ready)
+ s->state = bt_state_suspend;
+ else
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ case BT_HC_EXIT_SUSPEND:
+ if (s->state == bt_state_suspend)
+ s->state = bt_state_ready;
+ else
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ case BT_HC_VIRTUAL_CABLE_UNPLUG:
+ bt_hid_disconnect(s);
+ break;
+ default:
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ }
+ break;
+
+ case BT_GET_REPORT:
+ /* No ReportIDs declared. */
+ if (((parameter & 8) && len != 3) ||
+ (!(parameter & 8) && len != 1) ||
+ s->state != bt_state_ready) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ if (parameter & 8)
+ rlen = data[2] | (data[3] << 8);
+ else
+ rlen = INT_MAX;
+ switch (parameter & 3) {
+ case BT_DATA_OTHER:
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ case BT_DATA_INPUT:
+ /* Here we can as well poll s->usbdev */
+ bt_hid_send_data(s->control, BT_DATA_INPUT,
+ s->datain.buffer, MIN(rlen, s->datain.len));
+ break;
+ case BT_DATA_OUTPUT:
+ bt_hid_send_data(s->control, BT_DATA_OUTPUT,
+ s->dataout.buffer, MIN(rlen, s->dataout.len));
+ break;
+ case BT_DATA_FEATURE:
+ bt_hid_send_data(s->control, BT_DATA_FEATURE,
+ s->feature.buffer, MIN(rlen, s->feature.len));
+ break;
+ }
+ break;
+
+ case BT_SET_REPORT:
+ if (len < 2 || len > BT_HID_MTU || s->state != bt_state_ready ||
+ (parameter & 3) == BT_DATA_OTHER ||
+ (parameter & 3) == BT_DATA_INPUT) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ s->data_type = parameter & 3;
+ if (s->data_type == BT_DATA_OUTPUT) {
+ s->dataout.len = len - 1;
+ memcpy(s->dataout.buffer, data + 1, s->dataout.len);
+ } else {
+ s->feature.len = len - 1;
+ memcpy(s->feature.buffer, data + 1, s->feature.len);
+ }
+ if (len == BT_HID_MTU)
+ s->state = bt_state_transaction;
+ else
+ bt_hid_out(s);
+ break;
+
+ case BT_GET_PROTOCOL:
+ if (len != 1 || s->state == bt_state_transaction) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ *s->control->sdu_out(s->control, 1) = s->proto;
+ s->control->sdu_submit(s->control);
+ break;
+
+ case BT_SET_PROTOCOL:
+ if (len != 1 || s->state == bt_state_transaction ||
+ (parameter != BT_HID_PROTO_BOOT &&
+ parameter != BT_HID_PROTO_REPORT)) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ s->proto = parameter;
+ s->hid.protocol = parameter;
+ ret = BT_HS_SUCCESSFUL;
+ break;
+
+ case BT_GET_IDLE:
+ if (len != 1 || s->state == bt_state_transaction) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ *s->control->sdu_out(s->control, 1) = s->hid.idle;
+ s->control->sdu_submit(s->control);
+ break;
+
+ case BT_SET_IDLE:
+ if (len != 2 || s->state == bt_state_transaction) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+
+ s->hid.idle = data[1];
+ /* XXX: Does this generate a handshake? */
+ break;
+
+ case BT_DATC:
+ if (len > BT_HID_MTU || s->state != bt_state_transaction) {
+ ret = BT_HS_ERR_INVALID_PARAMETER;
+ break;
+ }
+ if (s->data_type == BT_DATA_OUTPUT) {
+ memcpy(s->dataout.buffer + s->dataout.len, data + 1, len - 1);
+ s->dataout.len += len - 1;
+ } else {
+ memcpy(s->feature.buffer + s->feature.len, data + 1, len - 1);
+ s->feature.len += len - 1;
+ }
+ if (len < BT_HID_MTU) {
+ bt_hid_out(s);
+ s->state = bt_state_ready;
+ }
+ break;
+
+ default:
+ ret = BT_HS_ERR_UNSUPPORTED_REQUEST;
+ }
+
+ if (ret != -1)
+ bt_hid_send_handshake(s, ret);
+}
+
+static void bt_hid_control_sdu(void *opaque, const uint8_t *data, int len)
+{
+ struct bt_hid_device_s *hid = opaque;
+
+ bt_hid_control_transaction(hid, data, len);
+}
+
+static void bt_hid_datain(HIDState *hs)
+{
+ struct bt_hid_device_s *hid =
+ container_of(hs, struct bt_hid_device_s, hid);
+
+ /* If suspended, wake-up and send a wake-up event first. We might
+ * want to also inspect the input report and ignore event like
+ * mouse movements until a button event occurs. */
+ if (hid->state == bt_state_suspend) {
+ hid->state = bt_state_ready;
+ }
+
+ if (bt_hid_in(hid) > 0)
+ /* TODO: when in boot-mode precede any Input reports with the ReportID
+ * byte, here and in GetReport/SetReport on the Control channel. */
+ bt_hid_send_data(hid->interrupt, BT_DATA_INPUT,
+ hid->datain.buffer, hid->datain.len);
+}
+
+static void bt_hid_interrupt_sdu(void *opaque, const uint8_t *data, int len)
+{
+ struct bt_hid_device_s *hid = opaque;
+
+ if (len > BT_HID_MTU || len < 1)
+ goto bad;
+ if ((data[0] & 3) != BT_DATA_OUTPUT)
+ goto bad;
+ if ((data[0] >> 4) == BT_DATA) {
+ if (hid->intr_state)
+ goto bad;
+
+ hid->data_type = BT_DATA_OUTPUT;
+ hid->intrdataout.len = 0;
+ } else if ((data[0] >> 4) == BT_DATC) {
+ if (!hid->intr_state)
+ goto bad;
+ } else
+ goto bad;
+
+ memcpy(hid->intrdataout.buffer + hid->intrdataout.len, data + 1, len - 1);
+ hid->intrdataout.len += len - 1;
+ hid->intr_state = (len == BT_HID_MTU);
+ if (!hid->intr_state) {
+ memcpy(hid->dataout.buffer, hid->intrdataout.buffer,
+ hid->dataout.len = hid->intrdataout.len);
+ bt_hid_out(hid);
+ }
+
+ return;
+bad:
+ fprintf(stderr, "%s: bad transaction on Interrupt channel.\n",
+ __FUNCTION__);
+}
+
+/* "Virtual cable" plug/unplug event. */
+static void bt_hid_connected_update(struct bt_hid_device_s *hid)
+{
+ int prev = hid->connected;
+
+ hid->connected = hid->control && hid->interrupt;
+
+ /* Stop page-/inquiry-scanning when a host is connected. */
+ hid->btdev.device.page_scan = !hid->connected;
+ hid->btdev.device.inquiry_scan = !hid->connected;
+
+ if (hid->connected && !prev) {
+ hid_reset(&hid->hid);
+ hid->proto = BT_HID_PROTO_REPORT;
+ }
+
+ /* Should set HIDVirtualCable in SDP (possibly need to check that SDP
+ * isn't destroyed yet, in case we're being called from handle_destroy) */
+}
+
+static void bt_hid_close_control(void *opaque)
+{
+ struct bt_hid_device_s *hid = opaque;
+
+ hid->control = NULL;
+ bt_hid_connected_update(hid);
+}
+
+static void bt_hid_close_interrupt(void *opaque)
+{
+ struct bt_hid_device_s *hid = opaque;
+
+ hid->interrupt = NULL;
+ bt_hid_connected_update(hid);
+}
+
+static int bt_hid_new_control_ch(struct bt_l2cap_device_s *dev,
+ struct bt_l2cap_conn_params_s *params)
+{
+ struct bt_hid_device_s *hid = (struct bt_hid_device_s *) dev;
+
+ if (hid->control)
+ return 1;
+
+ hid->control = params;
+ hid->control->opaque = hid;
+ hid->control->close = bt_hid_close_control;
+ hid->control->sdu_in = bt_hid_control_sdu;
+
+ bt_hid_connected_update(hid);
+
+ return 0;
+}
+
+static int bt_hid_new_interrupt_ch(struct bt_l2cap_device_s *dev,
+ struct bt_l2cap_conn_params_s *params)
+{
+ struct bt_hid_device_s *hid = (struct bt_hid_device_s *) dev;
+
+ if (hid->interrupt)
+ return 1;
+
+ hid->interrupt = params;
+ hid->interrupt->opaque = hid;
+ hid->interrupt->close = bt_hid_close_interrupt;
+ hid->interrupt->sdu_in = bt_hid_interrupt_sdu;
+
+ bt_hid_connected_update(hid);
+
+ return 0;
+}
+
+static void bt_hid_destroy(struct bt_device_s *dev)
+{
+ struct bt_hid_device_s *hid = (struct bt_hid_device_s *) dev;
+
+ if (hid->connected)
+ bt_hid_send_control(hid, BT_HC_VIRTUAL_CABLE_UNPLUG);
+ bt_l2cap_device_done(&hid->btdev);
+
+ hid_free(&hid->hid);
+
+ g_free(hid);
+}
+
+enum peripheral_minor_class {
+ class_other = 0 << 4,
+ class_keyboard = 1 << 4,
+ class_pointing = 2 << 4,
+ class_combo = 3 << 4,
+};
+
+static struct bt_device_s *bt_hid_init(struct bt_scatternet_s *net,
+ enum peripheral_minor_class minor)
+{
+ struct bt_hid_device_s *s = g_malloc0(sizeof(*s));
+ uint32_t class =
+ /* Format type */
+ (0 << 0) |
+ /* Device class */
+ (minor << 2) |
+ (5 << 8) | /* "Peripheral" */
+ /* Service classes */
+ (1 << 13) | /* Limited discoverable mode */
+ (1 << 19); /* Capturing device (?) */
+
+ bt_l2cap_device_init(&s->btdev, net);
+ bt_l2cap_sdp_init(&s->btdev);
+ bt_l2cap_psm_register(&s->btdev, BT_PSM_HID_CTRL,
+ BT_HID_MTU, bt_hid_new_control_ch);
+ bt_l2cap_psm_register(&s->btdev, BT_PSM_HID_INTR,
+ BT_HID_MTU, bt_hid_new_interrupt_ch);
+
+ hid_init(&s->hid, HID_KEYBOARD, bt_hid_datain);
+ s->btdev.device.lmp_name = "BT Keyboard";
+
+ s->btdev.device.handle_destroy = bt_hid_destroy;
+
+ s->btdev.device.class[0] = (class >> 0) & 0xff;
+ s->btdev.device.class[1] = (class >> 8) & 0xff;
+ s->btdev.device.class[2] = (class >> 16) & 0xff;
+
+ return &s->btdev.device;
+}
+
+struct bt_device_s *bt_keyboard_init(struct bt_scatternet_s *net)
+{
+ return bt_hid_init(net, class_keyboard);
+}
diff --git a/hw/bt/l2cap.c b/hw/bt/l2cap.c
new file mode 100644
index 0000000000..521587a112
--- /dev/null
+++ b/hw/bt/l2cap.c
@@ -0,0 +1,1365 @@
+/*
+ * QEMU Bluetooth L2CAP logic.
+ *
+ * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "qemu/timer.h"
+#include "hw/bt.h"
+
+#define L2CAP_CID_MAX 0x100 /* Between 0x40 and 0x10000 */
+
+struct l2cap_instance_s {
+ struct bt_link_s *link;
+ struct bt_l2cap_device_s *dev;
+ int role;
+
+ uint8_t frame_in[65535 + L2CAP_HDR_SIZE] __attribute__ ((aligned (4)));
+ int frame_in_len;
+
+ uint8_t frame_out[65535 + L2CAP_HDR_SIZE] __attribute__ ((aligned (4)));
+ int frame_out_len;
+
+ /* Signalling channel timers. They exist per-request but we can make
+ * sure we have no more than one outstanding request at any time. */
+ QEMUTimer *rtx;
+ QEMUTimer *ertx;
+
+ int last_id;
+ int next_id;
+
+ struct l2cap_chan_s {
+ struct bt_l2cap_conn_params_s params;
+
+ void (*frame_in)(struct l2cap_chan_s *chan, uint16_t cid,
+ const l2cap_hdr *hdr, int len);
+ int mps;
+ int min_mtu;
+
+ struct l2cap_instance_s *l2cap;
+
+ /* Only allocated channels */
+ uint16_t remote_cid;
+#define L2CAP_CFG_INIT 2
+#define L2CAP_CFG_ACC 1
+ int config_req_id; /* TODO: handle outgoing requests generically */
+ int config;
+
+ /* Only connection-oriented channels. Note: if we allow the tx and
+ * rx traffic to be in different modes at any time, we need two. */
+ int mode;
+
+ /* Only flow-controlled, connection-oriented channels */
+ uint8_t sdu[65536]; /* TODO: dynamically allocate */
+ int len_cur, len_total;
+ int rexmit;
+ int monitor_timeout;
+ QEMUTimer *monitor_timer;
+ QEMUTimer *retransmission_timer;
+ } *cid[L2CAP_CID_MAX];
+ /* The channel state machine states map as following:
+ * CLOSED -> !cid[N]
+ * WAIT_CONNECT -> never occurs
+ * WAIT_CONNECT_RSP -> never occurs
+ * CONFIG -> cid[N] && config < 3
+ * WAIT_CONFIG -> never occurs, cid[N] && config == 0 && !config_r
+ * WAIT_SEND_CONFIG -> never occurs, cid[N] && config == 1 && !config_r
+ * WAIT_CONFIG_REQ_RSP -> cid[N] && config == 0 && config_req_id
+ * WAIT_CONFIG_RSP -> cid[N] && config == 1 && config_req_id
+ * WAIT_CONFIG_REQ -> cid[N] && config == 2
+ * OPEN -> cid[N] && config == 3
+ * WAIT_DISCONNECT -> never occurs
+ */
+
+ struct l2cap_chan_s signalling_ch;
+ struct l2cap_chan_s group_ch;
+};
+
+struct slave_l2cap_instance_s {
+ struct bt_link_s link; /* Underlying logical link (ACL) */
+ struct l2cap_instance_s l2cap;
+};
+
+struct bt_l2cap_psm_s {
+ int psm;
+ int min_mtu;
+ int (*new_channel)(struct bt_l2cap_device_s *device,
+ struct bt_l2cap_conn_params_s *params);
+ struct bt_l2cap_psm_s *next;
+};
+
+static const uint16_t l2cap_fcs16_table[256] = {
+ 0x0000, 0xc0c1, 0xc181, 0x0140, 0xc301, 0x03c0, 0x0280, 0xc241,
+ 0xc601, 0x06c0, 0x0780, 0xc741, 0x0500, 0xc5c1, 0xc481, 0x0440,
+ 0xcc01, 0x0cc0, 0x0d80, 0xcd41, 0x0f00, 0xcfc1, 0xce81, 0x0e40,
+ 0x0a00, 0xcac1, 0xcb81, 0x0b40, 0xc901, 0x09c0, 0x0880, 0xc841,
+ 0xd801, 0x18c0, 0x1980, 0xd941, 0x1b00, 0xdbc1, 0xda81, 0x1a40,
+ 0x1e00, 0xdec1, 0xdf81, 0x1f40, 0xdd01, 0x1dc0, 0x1c80, 0xdc41,
+ 0x1400, 0xd4c1, 0xd581, 0x1540, 0xd701, 0x17c0, 0x1680, 0xd641,
+ 0xd201, 0x12c0, 0x1380, 0xd341, 0x1100, 0xd1c1, 0xd081, 0x1040,
+ 0xf001, 0x30c0, 0x3180, 0xf141, 0x3300, 0xf3c1, 0xf281, 0x3240,
+ 0x3600, 0xf6c1, 0xf781, 0x3740, 0xf501, 0x35c0, 0x3480, 0xf441,
+ 0x3c00, 0xfcc1, 0xfd81, 0x3d40, 0xff01, 0x3fc0, 0x3e80, 0xfe41,
+ 0xfa01, 0x3ac0, 0x3b80, 0xfb41, 0x3900, 0xf9c1, 0xf881, 0x3840,
+ 0x2800, 0xe8c1, 0xe981, 0x2940, 0xeb01, 0x2bc0, 0x2a80, 0xea41,
+ 0xee01, 0x2ec0, 0x2f80, 0xef41, 0x2d00, 0xedc1, 0xec81, 0x2c40,
+ 0xe401, 0x24c0, 0x2580, 0xe541, 0x2700, 0xe7c1, 0xe681, 0x2640,
+ 0x2200, 0xe2c1, 0xe381, 0x2340, 0xe101, 0x21c0, 0x2080, 0xe041,
+ 0xa001, 0x60c0, 0x6180, 0xa141, 0x6300, 0xa3c1, 0xa281, 0x6240,
+ 0x6600, 0xa6c1, 0xa781, 0x6740, 0xa501, 0x65c0, 0x6480, 0xa441,
+ 0x6c00, 0xacc1, 0xad81, 0x6d40, 0xaf01, 0x6fc0, 0x6e80, 0xae41,
+ 0xaa01, 0x6ac0, 0x6b80, 0xab41, 0x6900, 0xa9c1, 0xa881, 0x6840,
+ 0x7800, 0xb8c1, 0xb981, 0x7940, 0xbb01, 0x7bc0, 0x7a80, 0xba41,
+ 0xbe01, 0x7ec0, 0x7f80, 0xbf41, 0x7d00, 0xbdc1, 0xbc81, 0x7c40,
+ 0xb401, 0x74c0, 0x7580, 0xb541, 0x7700, 0xb7c1, 0xb681, 0x7640,
+ 0x7200, 0xb2c1, 0xb381, 0x7340, 0xb101, 0x71c0, 0x7080, 0xb041,
+ 0x5000, 0x90c1, 0x9181, 0x5140, 0x9301, 0x53c0, 0x5280, 0x9241,
+ 0x9601, 0x56c0, 0x5780, 0x9741, 0x5500, 0x95c1, 0x9481, 0x5440,
+ 0x9c01, 0x5cc0, 0x5d80, 0x9d41, 0x5f00, 0x9fc1, 0x9e81, 0x5e40,
+ 0x5a00, 0x9ac1, 0x9b81, 0x5b40, 0x9901, 0x59c0, 0x5880, 0x9841,
+ 0x8801, 0x48c0, 0x4980, 0x8941, 0x4b00, 0x8bc1, 0x8a81, 0x4a40,
+ 0x4e00, 0x8ec1, 0x8f81, 0x4f40, 0x8d01, 0x4dc0, 0x4c80, 0x8c41,
+ 0x4400, 0x84c1, 0x8581, 0x4540, 0x8701, 0x47c0, 0x4680, 0x8641,
+ 0x8201, 0x42c0, 0x4380, 0x8341, 0x4100, 0x81c1, 0x8081, 0x4040,
+};
+
+static uint16_t l2cap_fcs16(const uint8_t *message, int len)
+{
+ uint16_t fcs = 0x0000;
+
+ while (len --)
+#if 0
+ {
+ int i;
+
+ fcs ^= *message ++;
+ for (i = 8; i; -- i)
+ if (fcs & 1)
+ fcs = (fcs >> 1) ^ 0xa001;
+ else
+ fcs = (fcs >> 1);
+ }
+#else
+ fcs = (fcs >> 8) ^ l2cap_fcs16_table[(fcs ^ *message ++) & 0xff];
+#endif
+
+ return fcs;
+}
+
+/* L2CAP layer logic (protocol) */
+
+static void l2cap_retransmission_timer_update(struct l2cap_chan_s *ch)
+{
+#if 0
+ if (ch->mode != L2CAP_MODE_BASIC && ch->rexmit)
+ qemu_mod_timer(ch->retransmission_timer);
+ else
+ qemu_del_timer(ch->retransmission_timer);
+#endif
+}
+
+static void l2cap_monitor_timer_update(struct l2cap_chan_s *ch)
+{
+#if 0
+ if (ch->mode != L2CAP_MODE_BASIC && !ch->rexmit)
+ qemu_mod_timer(ch->monitor_timer);
+ else
+ qemu_del_timer(ch->monitor_timer);
+#endif
+}
+
+static void l2cap_command_reject(struct l2cap_instance_s *l2cap, int id,
+ uint16_t reason, const void *data, int plen)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ l2cap_cmd_rej *params;
+ uint16_t len;
+
+ reason = cpu_to_le16(reason);
+ len = cpu_to_le16(L2CAP_CMD_REJ_SIZE + plen);
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + L2CAP_CMD_REJ_SIZE + plen);
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ hdr->code = L2CAP_COMMAND_REJ;
+ hdr->ident = id;
+ memcpy(&hdr->len, &len, sizeof(hdr->len));
+ memcpy(&params->reason, &reason, sizeof(reason));
+ if (plen)
+ memcpy(pkt + L2CAP_CMD_HDR_SIZE + L2CAP_CMD_REJ_SIZE, data, plen);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static void l2cap_command_reject_cid(struct l2cap_instance_s *l2cap, int id,
+ uint16_t reason, uint16_t dcid, uint16_t scid)
+{
+ l2cap_cmd_rej_cid params = {
+ .dcid = dcid,
+ .scid = scid,
+ };
+
+ l2cap_command_reject(l2cap, id, reason, &params, L2CAP_CMD_REJ_CID_SIZE);
+}
+
+static void l2cap_connection_response(struct l2cap_instance_s *l2cap,
+ int dcid, int scid, int result, int status)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ l2cap_conn_rsp *params;
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + L2CAP_CONN_RSP_SIZE);
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ hdr->code = L2CAP_CONN_RSP;
+ hdr->ident = l2cap->last_id;
+ hdr->len = cpu_to_le16(L2CAP_CONN_RSP_SIZE);
+
+ params->dcid = cpu_to_le16(dcid);
+ params->scid = cpu_to_le16(scid);
+ params->result = cpu_to_le16(result);
+ params->status = cpu_to_le16(status);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static void l2cap_configuration_request(struct l2cap_instance_s *l2cap,
+ int dcid, int flag, const uint8_t *data, int len)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ l2cap_conf_req *params;
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + L2CAP_CONF_REQ_SIZE(len));
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ /* TODO: unify the id sequencing */
+ l2cap->last_id = l2cap->next_id;
+ l2cap->next_id = l2cap->next_id == 255 ? 1 : l2cap->next_id + 1;
+
+ hdr->code = L2CAP_CONF_REQ;
+ hdr->ident = l2cap->last_id;
+ hdr->len = cpu_to_le16(L2CAP_CONF_REQ_SIZE(len));
+
+ params->dcid = cpu_to_le16(dcid);
+ params->flags = cpu_to_le16(flag);
+ if (len)
+ memcpy(params->data, data, len);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static void l2cap_configuration_response(struct l2cap_instance_s *l2cap,
+ int scid, int flag, int result, const uint8_t *data, int len)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ l2cap_conf_rsp *params;
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + L2CAP_CONF_RSP_SIZE(len));
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ hdr->code = L2CAP_CONF_RSP;
+ hdr->ident = l2cap->last_id;
+ hdr->len = cpu_to_le16(L2CAP_CONF_RSP_SIZE(len));
+
+ params->scid = cpu_to_le16(scid);
+ params->flags = cpu_to_le16(flag);
+ params->result = cpu_to_le16(result);
+ if (len)
+ memcpy(params->data, data, len);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static void l2cap_disconnection_response(struct l2cap_instance_s *l2cap,
+ int dcid, int scid)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ l2cap_disconn_rsp *params;
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + L2CAP_DISCONN_RSP_SIZE);
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ hdr->code = L2CAP_DISCONN_RSP;
+ hdr->ident = l2cap->last_id;
+ hdr->len = cpu_to_le16(L2CAP_DISCONN_RSP_SIZE);
+
+ params->dcid = cpu_to_le16(dcid);
+ params->scid = cpu_to_le16(scid);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static void l2cap_echo_response(struct l2cap_instance_s *l2cap,
+ const uint8_t *data, int len)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ uint8_t *params;
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + len);
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ hdr->code = L2CAP_ECHO_RSP;
+ hdr->ident = l2cap->last_id;
+ hdr->len = cpu_to_le16(len);
+
+ memcpy(params, data, len);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static void l2cap_info_response(struct l2cap_instance_s *l2cap, int type,
+ int result, const uint8_t *data, int len)
+{
+ uint8_t *pkt;
+ l2cap_cmd_hdr *hdr;
+ l2cap_info_rsp *params;
+
+ pkt = l2cap->signalling_ch.params.sdu_out(&l2cap->signalling_ch.params,
+ L2CAP_CMD_HDR_SIZE + L2CAP_INFO_RSP_SIZE + len);
+ hdr = (void *) (pkt + 0);
+ params = (void *) (pkt + L2CAP_CMD_HDR_SIZE);
+
+ hdr->code = L2CAP_INFO_RSP;
+ hdr->ident = l2cap->last_id;
+ hdr->len = cpu_to_le16(L2CAP_INFO_RSP_SIZE + len);
+
+ params->type = cpu_to_le16(type);
+ params->result = cpu_to_le16(result);
+ if (len)
+ memcpy(params->data, data, len);
+
+ l2cap->signalling_ch.params.sdu_submit(&l2cap->signalling_ch.params);
+}
+
+static uint8_t *l2cap_bframe_out(struct bt_l2cap_conn_params_s *parm, int len);
+static void l2cap_bframe_submit(struct bt_l2cap_conn_params_s *parms);
+#if 0
+static uint8_t *l2cap_iframe_out(struct bt_l2cap_conn_params_s *parm, int len);
+static void l2cap_iframe_submit(struct bt_l2cap_conn_params_s *parm);
+#endif
+static void l2cap_bframe_in(struct l2cap_chan_s *ch, uint16_t cid,
+ const l2cap_hdr *hdr, int len);
+static void l2cap_iframe_in(struct l2cap_chan_s *ch, uint16_t cid,
+ const l2cap_hdr *hdr, int len);
+
+static int l2cap_cid_new(struct l2cap_instance_s *l2cap)
+{
+ int i;
+
+ for (i = L2CAP_CID_ALLOC; i < L2CAP_CID_MAX; i ++)
+ if (!l2cap->cid[i])
+ return i;
+
+ return L2CAP_CID_INVALID;
+}
+
+static inline struct bt_l2cap_psm_s *l2cap_psm(
+ struct bt_l2cap_device_s *device, int psm)
+{
+ struct bt_l2cap_psm_s *ret = device->first_psm;
+
+ while (ret && ret->psm != psm)
+ ret = ret->next;
+
+ return ret;
+}
+
+static struct l2cap_chan_s *l2cap_channel_open(struct l2cap_instance_s *l2cap,
+ int psm, int source_cid)
+{
+ struct l2cap_chan_s *ch = NULL;
+ struct bt_l2cap_psm_s *psm_info;
+ int result, status;
+ int cid = l2cap_cid_new(l2cap);
+
+ if (cid) {
+ /* See what the channel is to be used for.. */
+ psm_info = l2cap_psm(l2cap->dev, psm);
+
+ if (psm_info) {
+ /* Device supports this use-case. */
+ ch = g_malloc0(sizeof(*ch));
+ ch->params.sdu_out = l2cap_bframe_out;
+ ch->params.sdu_submit = l2cap_bframe_submit;
+ ch->frame_in = l2cap_bframe_in;
+ ch->mps = 65536;
+ ch->min_mtu = MAX(48, psm_info->min_mtu);
+ ch->params.remote_mtu = MAX(672, ch->min_mtu);
+ ch->remote_cid = source_cid;
+ ch->mode = L2CAP_MODE_BASIC;
+ ch->l2cap = l2cap;
+
+ /* Does it feel like opening yet another channel though? */
+ if (!psm_info->new_channel(l2cap->dev, &ch->params)) {
+ l2cap->cid[cid] = ch;
+
+ result = L2CAP_CR_SUCCESS;
+ status = L2CAP_CS_NO_INFO;
+ } else {
+ g_free(ch);
+
+ result = L2CAP_CR_NO_MEM;
+ status = L2CAP_CS_NO_INFO;
+ }
+ } else {
+ result = L2CAP_CR_BAD_PSM;
+ status = L2CAP_CS_NO_INFO;
+ }
+ } else {
+ result = L2CAP_CR_NO_MEM;
+ status = L2CAP_CS_NO_INFO;
+ }
+
+ l2cap_connection_response(l2cap, cid, source_cid, result, status);
+
+ return ch;
+}
+
+static void l2cap_channel_close(struct l2cap_instance_s *l2cap,
+ int cid, int source_cid)
+{
+ struct l2cap_chan_s *ch = NULL;
+
+ /* According to Volume 3, section 6.1.1, pg 1048 of BT Core V2.0, a
+ * connection in CLOSED state still responds with a L2CAP_DisconnectRsp
+ * message on an L2CAP_DisconnectReq event. */
+ if (unlikely(cid < L2CAP_CID_ALLOC)) {
+ l2cap_command_reject_cid(l2cap, l2cap->last_id, L2CAP_REJ_CID_INVAL,
+ cid, source_cid);
+ return;
+ }
+ if (likely(cid >= L2CAP_CID_ALLOC && cid < L2CAP_CID_MAX))
+ ch = l2cap->cid[cid];
+
+ if (likely(ch)) {
+ if (ch->remote_cid != source_cid) {
+ fprintf(stderr, "%s: Ignoring a Disconnection Request with the "
+ "invalid SCID %04x.\n", __FUNCTION__, source_cid);
+ return;
+ }
+
+ l2cap->cid[cid] = NULL;
+
+ ch->params.close(ch->params.opaque);
+ g_free(ch);
+ }
+
+ l2cap_disconnection_response(l2cap, cid, source_cid);
+}
+
+static void l2cap_channel_config_null(struct l2cap_instance_s *l2cap,
+ struct l2cap_chan_s *ch)
+{
+ l2cap_configuration_request(l2cap, ch->remote_cid, 0, NULL, 0);
+ ch->config_req_id = l2cap->last_id;
+ ch->config &= ~L2CAP_CFG_INIT;
+}
+
+static void l2cap_channel_config_req_event(struct l2cap_instance_s *l2cap,
+ struct l2cap_chan_s *ch)
+{
+ /* Use all default channel options and terminate negotiation. */
+ l2cap_channel_config_null(l2cap, ch);
+}
+
+static int l2cap_channel_config(struct l2cap_instance_s *l2cap,
+ struct l2cap_chan_s *ch, int flag,
+ const uint8_t *data, int len)
+{
+ l2cap_conf_opt *opt;
+ l2cap_conf_opt_qos *qos;
+ uint32_t val;
+ uint8_t rsp[len];
+ int result = L2CAP_CONF_SUCCESS;
+
+ data = memcpy(rsp, data, len);
+ while (len) {
+ opt = (void *) data;
+
+ if (len < L2CAP_CONF_OPT_SIZE ||
+ len < L2CAP_CONF_OPT_SIZE + opt->len) {
+ result = L2CAP_CONF_REJECT;
+ break;
+ }
+ data += L2CAP_CONF_OPT_SIZE + opt->len;
+ len -= L2CAP_CONF_OPT_SIZE + opt->len;
+
+ switch (opt->type & 0x7f) {
+ case L2CAP_CONF_MTU:
+ if (opt->len != 2) {
+ result = L2CAP_CONF_REJECT;
+ break;
+ }
+
+ /* MTU */
+ val = le16_to_cpup((void *) opt->val);
+ if (val < ch->min_mtu) {
+ cpu_to_le16w((void *) opt->val, ch->min_mtu);
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+
+ ch->params.remote_mtu = val;
+ break;
+
+ case L2CAP_CONF_FLUSH_TO:
+ if (opt->len != 2) {
+ result = L2CAP_CONF_REJECT;
+ break;
+ }
+
+ /* Flush Timeout */
+ val = le16_to_cpup((void *) opt->val);
+ if (val < 0x0001) {
+ opt->val[0] = 0xff;
+ opt->val[1] = 0xff;
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+ break;
+
+ case L2CAP_CONF_QOS:
+ if (opt->len != L2CAP_CONF_OPT_QOS_SIZE) {
+ result = L2CAP_CONF_REJECT;
+ break;
+ }
+ qos = (void *) opt->val;
+
+ /* Flags */
+ val = qos->flags;
+ if (val) {
+ qos->flags = 0;
+ result = L2CAP_CONF_UNACCEPT;
+ }
+
+ /* Service type */
+ val = qos->service_type;
+ if (val != L2CAP_CONF_QOS_BEST_EFFORT &&
+ val != L2CAP_CONF_QOS_NO_TRAFFIC) {
+ qos->service_type = L2CAP_CONF_QOS_BEST_EFFORT;
+ result = L2CAP_CONF_UNACCEPT;
+ }
+
+ if (val != L2CAP_CONF_QOS_NO_TRAFFIC) {
+ /* XXX: These values should possibly be calculated
+ * based on LM / baseband properties also. */
+
+ /* Token rate */
+ val = le32_to_cpu(qos->token_rate);
+ if (val == L2CAP_CONF_QOS_WILDCARD)
+ qos->token_rate = cpu_to_le32(0x100000);
+
+ /* Token bucket size */
+ val = le32_to_cpu(qos->token_bucket_size);
+ if (val == L2CAP_CONF_QOS_WILDCARD)
+ qos->token_bucket_size = cpu_to_le32(65500);
+
+ /* Any Peak bandwidth value is correct to return as-is */
+ /* Any Access latency value is correct to return as-is */
+ /* Any Delay variation value is correct to return as-is */
+ }
+ break;
+
+ case L2CAP_CONF_RFC:
+ if (opt->len != 9) {
+ result = L2CAP_CONF_REJECT;
+ break;
+ }
+
+ /* Mode */
+ val = opt->val[0];
+ switch (val) {
+ case L2CAP_MODE_BASIC:
+ ch->mode = val;
+ ch->frame_in = l2cap_bframe_in;
+
+ /* All other parameters shall be ignored */
+ break;
+
+ case L2CAP_MODE_RETRANS:
+ case L2CAP_MODE_FLOWCTL:
+ ch->mode = val;
+ ch->frame_in = l2cap_iframe_in;
+ /* Note: most of these parameters refer to incoming traffic
+ * so we don't need to save them as long as we can accept
+ * incoming PDUs at any values of the parameters. */
+
+ /* TxWindow size */
+ val = opt->val[1];
+ if (val < 1 || val > 32) {
+ opt->val[1] = 32;
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+
+ /* MaxTransmit */
+ val = opt->val[2];
+ if (val < 1) {
+ opt->val[2] = 1;
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+
+ /* Remote Retransmission time-out shouldn't affect local
+ * operation (?) */
+
+ /* The Monitor time-out drives the local Monitor timer (?),
+ * so save the value. */
+ val = (opt->val[6] << 8) | opt->val[5];
+ if (val < 30) {
+ opt->val[5] = 100 & 0xff;
+ opt->val[6] = 100 >> 8;
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+ ch->monitor_timeout = val;
+ l2cap_monitor_timer_update(ch);
+
+ /* MPS */
+ val = (opt->val[8] << 8) | opt->val[7];
+ if (val < ch->min_mtu) {
+ opt->val[7] = ch->min_mtu & 0xff;
+ opt->val[8] = ch->min_mtu >> 8;
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+ ch->mps = val;
+ break;
+
+ default:
+ result = L2CAP_CONF_UNACCEPT;
+ break;
+ }
+ break;
+
+ default:
+ if (!(opt->type >> 7))
+ result = L2CAP_CONF_UNKNOWN;
+ break;
+ }
+
+ if (result != L2CAP_CONF_SUCCESS)
+ break; /* XXX: should continue? */
+ }
+
+ l2cap_configuration_response(l2cap, ch->remote_cid,
+ flag, result, rsp, len);
+
+ return result == L2CAP_CONF_SUCCESS && !flag;
+}
+
+static void l2cap_channel_config_req_msg(struct l2cap_instance_s *l2cap,
+ int flag, int cid, const uint8_t *data, int len)
+{
+ struct l2cap_chan_s *ch;
+
+ if (unlikely(cid >= L2CAP_CID_MAX || !l2cap->cid[cid])) {
+ l2cap_command_reject_cid(l2cap, l2cap->last_id, L2CAP_REJ_CID_INVAL,
+ cid, 0x0000);
+ return;
+ }
+ ch = l2cap->cid[cid];
+
+ /* From OPEN go to WAIT_CONFIG_REQ and from WAIT_CONFIG_REQ_RSP to
+ * WAIT_CONFIG_REQ_RSP. This is assuming the transition chart for OPEN
+ * on pg 1053, section 6.1.5, volume 3 of BT Core V2.0 has a mistake
+ * and on options-acceptable we go back to OPEN and otherwise to
+ * WAIT_CONFIG_REQ and not the other way. */
+ ch->config &= ~L2CAP_CFG_ACC;
+
+ if (l2cap_channel_config(l2cap, ch, flag, data, len))
+ /* Go to OPEN or WAIT_CONFIG_RSP */
+ ch->config |= L2CAP_CFG_ACC;
+
+ /* TODO: if the incoming traffic flow control or retransmission mode
+ * changed then we probably need to also generate the
+ * ConfigureChannel_Req event and set the outgoing traffic to the same
+ * mode. */
+ if (!(ch->config & L2CAP_CFG_INIT) && (ch->config & L2CAP_CFG_ACC) &&
+ !ch->config_req_id)
+ l2cap_channel_config_req_event(l2cap, ch);
+}
+
+static int l2cap_channel_config_rsp_msg(struct l2cap_instance_s *l2cap,
+ int result, int flag, int cid, const uint8_t *data, int len)
+{
+ struct l2cap_chan_s *ch;
+
+ if (unlikely(cid >= L2CAP_CID_MAX || !l2cap->cid[cid])) {
+ l2cap_command_reject_cid(l2cap, l2cap->last_id, L2CAP_REJ_CID_INVAL,
+ cid, 0x0000);
+ return 0;
+ }
+ ch = l2cap->cid[cid];
+
+ if (ch->config_req_id != l2cap->last_id)
+ return 1;
+ ch->config_req_id = 0;
+
+ if (result == L2CAP_CONF_SUCCESS) {
+ if (!flag)
+ ch->config |= L2CAP_CFG_INIT;
+ else
+ l2cap_channel_config_null(l2cap, ch);
+ } else
+ /* Retry until we succeed */
+ l2cap_channel_config_req_event(l2cap, ch);
+
+ return 0;
+}
+
+static void l2cap_channel_open_req_msg(struct l2cap_instance_s *l2cap,
+ int psm, int source_cid)
+{
+ struct l2cap_chan_s *ch = l2cap_channel_open(l2cap, psm, source_cid);
+
+ if (!ch)
+ return;
+
+ /* Optional */
+ if (!(ch->config & L2CAP_CFG_INIT) && !ch->config_req_id)
+ l2cap_channel_config_req_event(l2cap, ch);
+}
+
+static void l2cap_info(struct l2cap_instance_s *l2cap, int type)
+{
+ uint8_t data[4];
+ int len = 0;
+ int result = L2CAP_IR_SUCCESS;
+
+ switch (type) {
+ case L2CAP_IT_CL_MTU:
+ data[len ++] = l2cap->group_ch.mps & 0xff;
+ data[len ++] = l2cap->group_ch.mps >> 8;
+ break;
+
+ case L2CAP_IT_FEAT_MASK:
+ /* (Prematurely) report Flow control and Retransmission modes. */
+ data[len ++] = 0x03;
+ data[len ++] = 0x00;
+ data[len ++] = 0x00;
+ data[len ++] = 0x00;
+ break;
+
+ default:
+ result = L2CAP_IR_NOTSUPP;
+ }
+
+ l2cap_info_response(l2cap, type, result, data, len);
+}
+
+static void l2cap_command(struct l2cap_instance_s *l2cap, int code, int id,
+ const uint8_t *params, int len)
+{
+ int err;
+
+#if 0
+ /* TODO: do the IDs really have to be in sequence? */
+ if (!id || (id != l2cap->last_id && id != l2cap->next_id)) {
+ fprintf(stderr, "%s: out of sequence command packet ignored.\n",
+ __FUNCTION__);
+ return;
+ }
+#else
+ l2cap->next_id = id;
+#endif
+ if (id == l2cap->next_id) {
+ l2cap->last_id = l2cap->next_id;
+ l2cap->next_id = l2cap->next_id == 255 ? 1 : l2cap->next_id + 1;
+ } else {
+ /* TODO: Need to re-send the same response, without re-executing
+ * the corresponding command! */
+ }
+
+ switch (code) {
+ case L2CAP_COMMAND_REJ:
+ if (unlikely(len != 2 && len != 4 && len != 6)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ /* We never issue commands other than Command Reject currently. */
+ fprintf(stderr, "%s: stray Command Reject (%02x, %04x) "
+ "packet, ignoring.\n", __FUNCTION__, id,
+ le16_to_cpu(((l2cap_cmd_rej *) params)->reason));
+ break;
+
+ case L2CAP_CONN_REQ:
+ if (unlikely(len != L2CAP_CONN_REQ_SIZE)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ l2cap_channel_open_req_msg(l2cap,
+ le16_to_cpu(((l2cap_conn_req *) params)->psm),
+ le16_to_cpu(((l2cap_conn_req *) params)->scid));
+ break;
+
+ case L2CAP_CONN_RSP:
+ if (unlikely(len != L2CAP_CONN_RSP_SIZE)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ /* We never issue Connection Requests currently. TODO */
+ fprintf(stderr, "%s: unexpected Connection Response (%02x) "
+ "packet, ignoring.\n", __FUNCTION__, id);
+ break;
+
+ case L2CAP_CONF_REQ:
+ if (unlikely(len < L2CAP_CONF_REQ_SIZE(0))) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ l2cap_channel_config_req_msg(l2cap,
+ le16_to_cpu(((l2cap_conf_req *) params)->flags) & 1,
+ le16_to_cpu(((l2cap_conf_req *) params)->dcid),
+ ((l2cap_conf_req *) params)->data,
+ len - L2CAP_CONF_REQ_SIZE(0));
+ break;
+
+ case L2CAP_CONF_RSP:
+ if (unlikely(len < L2CAP_CONF_RSP_SIZE(0))) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ if (l2cap_channel_config_rsp_msg(l2cap,
+ le16_to_cpu(((l2cap_conf_rsp *) params)->result),
+ le16_to_cpu(((l2cap_conf_rsp *) params)->flags) & 1,
+ le16_to_cpu(((l2cap_conf_rsp *) params)->scid),
+ ((l2cap_conf_rsp *) params)->data,
+ len - L2CAP_CONF_RSP_SIZE(0)))
+ fprintf(stderr, "%s: unexpected Configure Response (%02x) "
+ "packet, ignoring.\n", __FUNCTION__, id);
+ break;
+
+ case L2CAP_DISCONN_REQ:
+ if (unlikely(len != L2CAP_DISCONN_REQ_SIZE)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ l2cap_channel_close(l2cap,
+ le16_to_cpu(((l2cap_disconn_req *) params)->dcid),
+ le16_to_cpu(((l2cap_disconn_req *) params)->scid));
+ break;
+
+ case L2CAP_DISCONN_RSP:
+ if (unlikely(len != L2CAP_DISCONN_RSP_SIZE)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ /* We never issue Disconnection Requests currently. TODO */
+ fprintf(stderr, "%s: unexpected Disconnection Response (%02x) "
+ "packet, ignoring.\n", __FUNCTION__, id);
+ break;
+
+ case L2CAP_ECHO_REQ:
+ l2cap_echo_response(l2cap, params, len);
+ break;
+
+ case L2CAP_ECHO_RSP:
+ /* We never issue Echo Requests currently. TODO */
+ fprintf(stderr, "%s: unexpected Echo Response (%02x) "
+ "packet, ignoring.\n", __FUNCTION__, id);
+ break;
+
+ case L2CAP_INFO_REQ:
+ if (unlikely(len != L2CAP_INFO_REQ_SIZE)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ l2cap_info(l2cap, le16_to_cpu(((l2cap_info_req *) params)->type));
+ break;
+
+ case L2CAP_INFO_RSP:
+ if (unlikely(len != L2CAP_INFO_RSP_SIZE)) {
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ goto reject;
+ }
+
+ /* We never issue Information Requests currently. TODO */
+ fprintf(stderr, "%s: unexpected Information Response (%02x) "
+ "packet, ignoring.\n", __FUNCTION__, id);
+ break;
+
+ default:
+ err = L2CAP_REJ_CMD_NOT_UNDERSTOOD;
+ reject:
+ l2cap_command_reject(l2cap, id, err, 0, 0);
+ break;
+ }
+}
+
+static void l2cap_rexmit_enable(struct l2cap_chan_s *ch, int enable)
+{
+ ch->rexmit = enable;
+
+ l2cap_retransmission_timer_update(ch);
+ l2cap_monitor_timer_update(ch);
+}
+
+/* Command frame SDU */
+static void l2cap_cframe_in(void *opaque, const uint8_t *data, int len)
+{
+ struct l2cap_instance_s *l2cap = opaque;
+ const l2cap_cmd_hdr *hdr;
+ int clen;
+
+ while (len) {
+ hdr = (void *) data;
+ if (len < L2CAP_CMD_HDR_SIZE)
+ /* TODO: signal an error */
+ return;
+ len -= L2CAP_CMD_HDR_SIZE;
+ data += L2CAP_CMD_HDR_SIZE;
+
+ clen = le16_to_cpu(hdr->len);
+ if (len < clen) {
+ l2cap_command_reject(l2cap, hdr->ident,
+ L2CAP_REJ_CMD_NOT_UNDERSTOOD, 0, 0);
+ break;
+ }
+
+ l2cap_command(l2cap, hdr->code, hdr->ident, data, clen);
+ len -= clen;
+ data += clen;
+ }
+}
+
+/* Group frame SDU */
+static void l2cap_gframe_in(void *opaque, const uint8_t *data, int len)
+{
+}
+
+/* Supervisory frame */
+static void l2cap_sframe_in(struct l2cap_chan_s *ch, uint16_t ctrl)
+{
+}
+
+/* Basic L2CAP mode Information frame */
+static void l2cap_bframe_in(struct l2cap_chan_s *ch, uint16_t cid,
+ const l2cap_hdr *hdr, int len)
+{
+ /* We have a full SDU, no further processing */
+ ch->params.sdu_in(ch->params.opaque, hdr->data, len);
+}
+
+/* Flow Control and Retransmission mode frame */
+static void l2cap_iframe_in(struct l2cap_chan_s *ch, uint16_t cid,
+ const l2cap_hdr *hdr, int len)
+{
+ uint16_t fcs = le16_to_cpup((void *) (hdr->data + len - 2));
+
+ if (len < 4)
+ goto len_error;
+ if (l2cap_fcs16((const uint8_t *) hdr, L2CAP_HDR_SIZE + len - 2) != fcs)
+ goto fcs_error;
+
+ if ((hdr->data[0] >> 7) == ch->rexmit)
+ l2cap_rexmit_enable(ch, !(hdr->data[0] >> 7));
+
+ if (hdr->data[0] & 1) {
+ if (len != 4) {
+ /* TODO: Signal an error? */
+ return;
+ }
+ l2cap_sframe_in(ch, le16_to_cpup((void *) hdr->data));
+ return;
+ }
+
+ switch (hdr->data[1] >> 6) { /* SAR */
+ case L2CAP_SAR_NO_SEG:
+ if (ch->len_total)
+ goto seg_error;
+ if (len - 4 > ch->mps)
+ goto len_error;
+
+ ch->params.sdu_in(ch->params.opaque, hdr->data + 2, len - 4);
+ break;
+
+ case L2CAP_SAR_START:
+ if (ch->len_total || len < 6)
+ goto seg_error;
+ if (len - 6 > ch->mps)
+ goto len_error;
+
+ ch->len_total = le16_to_cpup((void *) (hdr->data + 2));
+ if (len >= 6 + ch->len_total)
+ goto seg_error;
+
+ ch->len_cur = len - 6;
+ memcpy(ch->sdu, hdr->data + 4, ch->len_cur);
+ break;
+
+ case L2CAP_SAR_END:
+ if (!ch->len_total || ch->len_cur + len - 4 < ch->len_total)
+ goto seg_error;
+ if (len - 4 > ch->mps)
+ goto len_error;
+
+ memcpy(ch->sdu + ch->len_cur, hdr->data + 2, len - 4);
+ ch->params.sdu_in(ch->params.opaque, ch->sdu, ch->len_total);
+ break;
+
+ case L2CAP_SAR_CONT:
+ if (!ch->len_total || ch->len_cur + len - 4 >= ch->len_total)
+ goto seg_error;
+ if (len - 4 > ch->mps)
+ goto len_error;
+
+ memcpy(ch->sdu + ch->len_cur, hdr->data + 2, len - 4);
+ ch->len_cur += len - 4;
+ break;
+
+ seg_error:
+ len_error: /* TODO */
+ fcs_error: /* TODO */
+ ch->len_cur = 0;
+ ch->len_total = 0;
+ break;
+ }
+}
+
+static void l2cap_frame_in(struct l2cap_instance_s *l2cap,
+ const l2cap_hdr *frame)
+{
+ uint16_t cid = le16_to_cpu(frame->cid);
+ uint16_t len = le16_to_cpu(frame->len);
+
+ if (unlikely(cid >= L2CAP_CID_MAX || !l2cap->cid[cid])) {
+ fprintf(stderr, "%s: frame addressed to a non-existent L2CAP "
+ "channel %04x received.\n", __FUNCTION__, cid);
+ return;
+ }
+
+ l2cap->cid[cid]->frame_in(l2cap->cid[cid], cid, frame, len);
+}
+
+/* "Recombination" */
+static void l2cap_pdu_in(struct l2cap_instance_s *l2cap,
+ const uint8_t *data, int len)
+{
+ const l2cap_hdr *hdr = (void *) l2cap->frame_in;
+
+ if (unlikely(len + l2cap->frame_in_len > sizeof(l2cap->frame_in))) {
+ if (l2cap->frame_in_len < sizeof(l2cap->frame_in)) {
+ memcpy(l2cap->frame_in + l2cap->frame_in_len, data,
+ sizeof(l2cap->frame_in) - l2cap->frame_in_len);
+ l2cap->frame_in_len = sizeof(l2cap->frame_in);
+ /* TODO: truncate */
+ l2cap_frame_in(l2cap, hdr);
+ }
+
+ return;
+ }
+
+ memcpy(l2cap->frame_in + l2cap->frame_in_len, data, len);
+ l2cap->frame_in_len += len;
+
+ if (len >= L2CAP_HDR_SIZE)
+ if (len >= L2CAP_HDR_SIZE + le16_to_cpu(hdr->len))
+ l2cap_frame_in(l2cap, hdr);
+ /* There is never a start of a new PDU in the same ACL packet, so
+ * no need to memmove the remaining payload and loop. */
+}
+
+static inline uint8_t *l2cap_pdu_out(struct l2cap_instance_s *l2cap,
+ uint16_t cid, uint16_t len)
+{
+ l2cap_hdr *hdr = (void *) l2cap->frame_out;
+
+ l2cap->frame_out_len = len + L2CAP_HDR_SIZE;
+
+ hdr->cid = cpu_to_le16(cid);
+ hdr->len = cpu_to_le16(len);
+
+ return l2cap->frame_out + L2CAP_HDR_SIZE;
+}
+
+static inline void l2cap_pdu_submit(struct l2cap_instance_s *l2cap)
+{
+ /* TODO: Fragmentation */
+ (l2cap->role ?
+ l2cap->link->slave->lmp_acl_data : l2cap->link->host->lmp_acl_resp)
+ (l2cap->link, l2cap->frame_out, 1, l2cap->frame_out_len);
+}
+
+static uint8_t *l2cap_bframe_out(struct bt_l2cap_conn_params_s *parm, int len)
+{
+ struct l2cap_chan_s *chan = (struct l2cap_chan_s *) parm;
+
+ if (len > chan->params.remote_mtu) {
+ fprintf(stderr, "%s: B-Frame for CID %04x longer than %i octets.\n",
+ __FUNCTION__,
+ chan->remote_cid, chan->params.remote_mtu);
+ exit(-1);
+ }
+
+ return l2cap_pdu_out(chan->l2cap, chan->remote_cid, len);
+}
+
+static void l2cap_bframe_submit(struct bt_l2cap_conn_params_s *parms)
+{
+ struct l2cap_chan_s *chan = (struct l2cap_chan_s *) parms;
+
+ l2cap_pdu_submit(chan->l2cap);
+}
+
+#if 0
+/* Stub: Only used if an emulated device requests outgoing flow control */
+static uint8_t *l2cap_iframe_out(struct bt_l2cap_conn_params_s *parm, int len)
+{
+ struct l2cap_chan_s *chan = (struct l2cap_chan_s *) parm;
+
+ if (len > chan->params.remote_mtu) {
+ /* TODO: slice into segments and queue each segment as a separate
+ * I-Frame in a FIFO of I-Frames, local to the CID. */
+ } else {
+ /* TODO: add to the FIFO of I-Frames, local to the CID. */
+ /* Possibly we need to return a pointer to a contiguous buffer
+ * for now and then memcpy from it into FIFOs in l2cap_iframe_submit
+ * while segmenting at the same time. */
+ }
+ return 0;
+}
+
+static void l2cap_iframe_submit(struct bt_l2cap_conn_params_s *parm)
+{
+ /* TODO: If flow control indicates clear to send, start submitting the
+ * invidual I-Frames from the FIFO, but don't remove them from there.
+ * Kick the appropriate timer until we get an S-Frame, and only then
+ * remove from FIFO or resubmit and re-kick the timer if the timer
+ * expired. */
+}
+#endif
+
+static void l2cap_init(struct l2cap_instance_s *l2cap,
+ struct bt_link_s *link, int role)
+{
+ l2cap->link = link;
+ l2cap->role = role;
+ l2cap->dev = (struct bt_l2cap_device_s *)
+ (role ? link->host : link->slave);
+
+ l2cap->next_id = 1;
+
+ /* Establish the signalling channel */
+ l2cap->signalling_ch.params.sdu_in = l2cap_cframe_in;
+ l2cap->signalling_ch.params.sdu_out = l2cap_bframe_out;
+ l2cap->signalling_ch.params.sdu_submit = l2cap_bframe_submit;
+ l2cap->signalling_ch.params.opaque = l2cap;
+ l2cap->signalling_ch.params.remote_mtu = 48;
+ l2cap->signalling_ch.remote_cid = L2CAP_CID_SIGNALLING;
+ l2cap->signalling_ch.frame_in = l2cap_bframe_in;
+ l2cap->signalling_ch.mps = 65536;
+ l2cap->signalling_ch.min_mtu = 48;
+ l2cap->signalling_ch.mode = L2CAP_MODE_BASIC;
+ l2cap->signalling_ch.l2cap = l2cap;
+ l2cap->cid[L2CAP_CID_SIGNALLING] = &l2cap->signalling_ch;
+
+ /* Establish the connection-less data channel */
+ l2cap->group_ch.params.sdu_in = l2cap_gframe_in;
+ l2cap->group_ch.params.opaque = l2cap;
+ l2cap->group_ch.frame_in = l2cap_bframe_in;
+ l2cap->group_ch.mps = 65533;
+ l2cap->group_ch.l2cap = l2cap;
+ l2cap->group_ch.remote_cid = L2CAP_CID_INVALID;
+ l2cap->cid[L2CAP_CID_GROUP] = &l2cap->group_ch;
+}
+
+static void l2cap_teardown(struct l2cap_instance_s *l2cap, int send_disconnect)
+{
+ int cid;
+
+ /* Don't send DISCONNECT if we are currently handling a DISCONNECT
+ * sent from the other side. */
+ if (send_disconnect) {
+ if (l2cap->role)
+ l2cap->dev->device.lmp_disconnect_slave(l2cap->link);
+ /* l2cap->link is invalid from now on. */
+ else
+ l2cap->dev->device.lmp_disconnect_master(l2cap->link);
+ }
+
+ for (cid = L2CAP_CID_ALLOC; cid < L2CAP_CID_MAX; cid ++)
+ if (l2cap->cid[cid]) {
+ l2cap->cid[cid]->params.close(l2cap->cid[cid]->params.opaque);
+ g_free(l2cap->cid[cid]);
+ }
+
+ if (l2cap->role)
+ g_free(l2cap);
+ else
+ g_free(l2cap->link);
+}
+
+/* L2CAP glue to lower layers in bluetooth stack (LMP) */
+
+static void l2cap_lmp_connection_request(struct bt_link_s *link)
+{
+ struct bt_l2cap_device_s *dev = (struct bt_l2cap_device_s *) link->slave;
+ struct slave_l2cap_instance_s *l2cap;
+
+ /* Always accept - we only get called if (dev->device->page_scan). */
+
+ l2cap = g_malloc0(sizeof(struct slave_l2cap_instance_s));
+ l2cap->link.slave = &dev->device;
+ l2cap->link.host = link->host;
+ l2cap_init(&l2cap->l2cap, &l2cap->link, 0);
+
+ /* Always at the end */
+ link->host->reject_reason = 0;
+ link->host->lmp_connection_complete(&l2cap->link);
+}
+
+/* Stub */
+static void l2cap_lmp_connection_complete(struct bt_link_s *link)
+{
+ struct bt_l2cap_device_s *dev = (struct bt_l2cap_device_s *) link->host;
+ struct l2cap_instance_s *l2cap;
+
+ if (dev->device.reject_reason) {
+ /* Signal to upper layer */
+ return;
+ }
+
+ l2cap = g_malloc0(sizeof(struct l2cap_instance_s));
+ l2cap_init(l2cap, link, 1);
+
+ link->acl_mode = acl_active;
+
+ /* Signal to upper layer */
+}
+
+/* Stub */
+static void l2cap_lmp_disconnect_host(struct bt_link_s *link)
+{
+ struct bt_l2cap_device_s *dev = (struct bt_l2cap_device_s *) link->host;
+ struct l2cap_instance_s *l2cap =
+ /* TODO: Retrieve from upper layer */ (void *) dev;
+
+ /* Signal to upper layer */
+
+ l2cap_teardown(l2cap, 0);
+}
+
+static void l2cap_lmp_disconnect_slave(struct bt_link_s *link)
+{
+ struct slave_l2cap_instance_s *l2cap =
+ (struct slave_l2cap_instance_s *) link;
+
+ l2cap_teardown(&l2cap->l2cap, 0);
+}
+
+static void l2cap_lmp_acl_data_slave(struct bt_link_s *link,
+ const uint8_t *data, int start, int len)
+{
+ struct slave_l2cap_instance_s *l2cap =
+ (struct slave_l2cap_instance_s *) link;
+
+ if (start)
+ l2cap->l2cap.frame_in_len = 0;
+
+ l2cap_pdu_in(&l2cap->l2cap, data, len);
+}
+
+/* Stub */
+static void l2cap_lmp_acl_data_host(struct bt_link_s *link,
+ const uint8_t *data, int start, int len)
+{
+ struct bt_l2cap_device_s *dev = (struct bt_l2cap_device_s *) link->host;
+ struct l2cap_instance_s *l2cap =
+ /* TODO: Retrieve from upper layer */ (void *) dev;
+
+ if (start)
+ l2cap->frame_in_len = 0;
+
+ l2cap_pdu_in(l2cap, data, len);
+}
+
+static void l2cap_dummy_destroy(struct bt_device_s *dev)
+{
+ struct bt_l2cap_device_s *l2cap_dev = (struct bt_l2cap_device_s *) dev;
+
+ bt_l2cap_device_done(l2cap_dev);
+}
+
+void bt_l2cap_device_init(struct bt_l2cap_device_s *dev,
+ struct bt_scatternet_s *net)
+{
+ bt_device_init(&dev->device, net);
+
+ dev->device.lmp_connection_request = l2cap_lmp_connection_request;
+ dev->device.lmp_connection_complete = l2cap_lmp_connection_complete;
+ dev->device.lmp_disconnect_master = l2cap_lmp_disconnect_host;
+ dev->device.lmp_disconnect_slave = l2cap_lmp_disconnect_slave;
+ dev->device.lmp_acl_data = l2cap_lmp_acl_data_slave;
+ dev->device.lmp_acl_resp = l2cap_lmp_acl_data_host;
+
+ dev->device.handle_destroy = l2cap_dummy_destroy;
+}
+
+void bt_l2cap_device_done(struct bt_l2cap_device_s *dev)
+{
+ bt_device_done(&dev->device);
+
+ /* Should keep a list of all instances and go through it and
+ * invoke l2cap_teardown() for each. */
+}
+
+void bt_l2cap_psm_register(struct bt_l2cap_device_s *dev, int psm, int min_mtu,
+ int (*new_channel)(struct bt_l2cap_device_s *dev,
+ struct bt_l2cap_conn_params_s *params))
+{
+ struct bt_l2cap_psm_s *new_psm = l2cap_psm(dev, psm);
+
+ if (new_psm) {
+ fprintf(stderr, "%s: PSM %04x already registered for device `%s'.\n",
+ __FUNCTION__, psm, dev->device.lmp_name);
+ exit(-1);
+ }
+
+ new_psm = g_malloc0(sizeof(*new_psm));
+ new_psm->psm = psm;
+ new_psm->min_mtu = min_mtu;
+ new_psm->new_channel = new_channel;
+ new_psm->next = dev->first_psm;
+ dev->first_psm = new_psm;
+}
diff --git a/hw/bt/sdp.c b/hw/bt/sdp.c
new file mode 100644
index 0000000000..218e075df7
--- /dev/null
+++ b/hw/bt/sdp.c
@@ -0,0 +1,967 @@
+/*
+ * Service Discover Protocol server for QEMU L2CAP devices
+ *
+ * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "hw/bt.h"
+
+struct bt_l2cap_sdp_state_s {
+ struct bt_l2cap_conn_params_s *channel;
+
+ struct sdp_service_record_s {
+ int match;
+
+ int *uuid;
+ int uuids;
+ struct sdp_service_attribute_s {
+ int match;
+
+ int attribute_id;
+ int len;
+ void *pair;
+ } *attribute_list;
+ int attributes;
+ } *service_list;
+ int services;
+};
+
+static ssize_t sdp_datalen(const uint8_t **element, ssize_t *left)
+{
+ size_t len = *(*element) ++ & SDP_DSIZE_MASK;
+
+ if (!*left)
+ return -1;
+ (*left) --;
+
+ if (len < SDP_DSIZE_NEXT1)
+ return 1 << len;
+ else if (len == SDP_DSIZE_NEXT1) {
+ if (*left < 1)
+ return -1;
+ (*left) --;
+
+ return *(*element) ++;
+ } else if (len == SDP_DSIZE_NEXT2) {
+ if (*left < 2)
+ return -1;
+ (*left) -= 2;
+
+ len = (*(*element) ++) << 8;
+ return len | (*(*element) ++);
+ } else {
+ if (*left < 4)
+ return -1;
+ (*left) -= 4;
+
+ len = (*(*element) ++) << 24;
+ len |= (*(*element) ++) << 16;
+ len |= (*(*element) ++) << 8;
+ return len | (*(*element) ++);
+ }
+}
+
+static const uint8_t bt_base_uuid[12] = {
+ 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5f, 0x9b, 0x34, 0xfb,
+};
+
+static int sdp_uuid_match(struct sdp_service_record_s *record,
+ const uint8_t *uuid, ssize_t datalen)
+{
+ int *lo, hi, val;
+
+ if (datalen == 16 || datalen == 4) {
+ if (datalen == 16 && memcmp(uuid + 4, bt_base_uuid, 12))
+ return 0;
+
+ if (uuid[0] | uuid[1])
+ return 0;
+ uuid += 2;
+ }
+
+ val = (uuid[0] << 8) | uuid[1];
+ lo = record->uuid;
+ hi = record->uuids;
+ while (hi >>= 1)
+ if (lo[hi] <= val)
+ lo += hi;
+
+ return *lo == val;
+}
+
+#define CONTINUATION_PARAM_SIZE (1 + sizeof(int))
+#define MAX_PDU_OUT_SIZE 96 /* Arbitrary */
+#define PDU_HEADER_SIZE 5
+#define MAX_RSP_PARAM_SIZE (MAX_PDU_OUT_SIZE - PDU_HEADER_SIZE - \
+ CONTINUATION_PARAM_SIZE)
+
+static int sdp_svc_match(struct bt_l2cap_sdp_state_s *sdp,
+ const uint8_t **req, ssize_t *len)
+{
+ size_t datalen;
+ int i;
+
+ if ((**req & ~SDP_DSIZE_MASK) != SDP_DTYPE_UUID)
+ return 1;
+
+ datalen = sdp_datalen(req, len);
+ if (datalen != 2 && datalen != 4 && datalen != 16)
+ return 1;
+
+ for (i = 0; i < sdp->services; i ++)
+ if (sdp_uuid_match(&sdp->service_list[i], *req, datalen))
+ sdp->service_list[i].match = 1;
+
+ (*req) += datalen;
+ (*len) -= datalen;
+
+ return 0;
+}
+
+static ssize_t sdp_svc_search(struct bt_l2cap_sdp_state_s *sdp,
+ uint8_t *rsp, const uint8_t *req, ssize_t len)
+{
+ ssize_t seqlen;
+ int i, count, start, end, max;
+ int32_t handle;
+
+ /* Perform the search */
+ for (i = 0; i < sdp->services; i ++)
+ sdp->service_list[i].match = 0;
+
+ if (len < 1)
+ return -SDP_INVALID_SYNTAX;
+ if ((*req & ~SDP_DSIZE_MASK) == SDP_DTYPE_SEQ) {
+ seqlen = sdp_datalen(&req, &len);
+ if (seqlen < 3 || len < seqlen)
+ return -SDP_INVALID_SYNTAX;
+ len -= seqlen;
+
+ while (seqlen)
+ if (sdp_svc_match(sdp, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+ } else if (sdp_svc_match(sdp, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+
+ if (len < 3)
+ return -SDP_INVALID_SYNTAX;
+ max = (req[0] << 8) | req[1];
+ req += 2;
+ len -= 2;
+
+ if (*req) {
+ if (len <= sizeof(int))
+ return -SDP_INVALID_SYNTAX;
+ len -= sizeof(int);
+ memcpy(&start, req + 1, sizeof(int));
+ } else
+ start = 0;
+
+ if (len > 1)
+ return -SDP_INVALID_SYNTAX;
+
+ /* Output the results */
+ len = 4;
+ count = 0;
+ end = start;
+ for (i = 0; i < sdp->services; i ++)
+ if (sdp->service_list[i].match) {
+ if (count >= start && count < max && len + 4 < MAX_RSP_PARAM_SIZE) {
+ handle = i;
+ memcpy(rsp + len, &handle, 4);
+ len += 4;
+ end = count + 1;
+ }
+
+ count ++;
+ }
+
+ rsp[0] = count >> 8;
+ rsp[1] = count & 0xff;
+ rsp[2] = (end - start) >> 8;
+ rsp[3] = (end - start) & 0xff;
+
+ if (end < count) {
+ rsp[len ++] = sizeof(int);
+ memcpy(rsp + len, &end, sizeof(int));
+ len += 4;
+ } else
+ rsp[len ++] = 0;
+
+ return len;
+}
+
+static int sdp_attr_match(struct sdp_service_record_s *record,
+ const uint8_t **req, ssize_t *len)
+{
+ int i, start, end;
+
+ if (**req == (SDP_DTYPE_UINT | SDP_DSIZE_2)) {
+ (*req) ++;
+ if (*len < 3)
+ return 1;
+
+ start = (*(*req) ++) << 8;
+ start |= *(*req) ++;
+ end = start;
+ *len -= 3;
+ } else if (**req == (SDP_DTYPE_UINT | SDP_DSIZE_4)) {
+ (*req) ++;
+ if (*len < 5)
+ return 1;
+
+ start = (*(*req) ++) << 8;
+ start |= *(*req) ++;
+ end = (*(*req) ++) << 8;
+ end |= *(*req) ++;
+ *len -= 5;
+ } else
+ return 1;
+
+ for (i = 0; i < record->attributes; i ++)
+ if (record->attribute_list[i].attribute_id >= start &&
+ record->attribute_list[i].attribute_id <= end)
+ record->attribute_list[i].match = 1;
+
+ return 0;
+}
+
+static ssize_t sdp_attr_get(struct bt_l2cap_sdp_state_s *sdp,
+ uint8_t *rsp, const uint8_t *req, ssize_t len)
+{
+ ssize_t seqlen;
+ int i, start, end, max;
+ int32_t handle;
+ struct sdp_service_record_s *record;
+ uint8_t *lst;
+
+ /* Perform the search */
+ if (len < 7)
+ return -SDP_INVALID_SYNTAX;
+ memcpy(&handle, req, 4);
+ req += 4;
+ len -= 4;
+
+ if (handle < 0 || handle > sdp->services)
+ return -SDP_INVALID_RECORD_HANDLE;
+ record = &sdp->service_list[handle];
+
+ for (i = 0; i < record->attributes; i ++)
+ record->attribute_list[i].match = 0;
+
+ max = (req[0] << 8) | req[1];
+ req += 2;
+ len -= 2;
+ if (max < 0x0007)
+ return -SDP_INVALID_SYNTAX;
+
+ if ((*req & ~SDP_DSIZE_MASK) == SDP_DTYPE_SEQ) {
+ seqlen = sdp_datalen(&req, &len);
+ if (seqlen < 3 || len < seqlen)
+ return -SDP_INVALID_SYNTAX;
+ len -= seqlen;
+
+ while (seqlen)
+ if (sdp_attr_match(record, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+ } else if (sdp_attr_match(record, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+
+ if (len < 1)
+ return -SDP_INVALID_SYNTAX;
+
+ if (*req) {
+ if (len <= sizeof(int))
+ return -SDP_INVALID_SYNTAX;
+ len -= sizeof(int);
+ memcpy(&start, req + 1, sizeof(int));
+ } else
+ start = 0;
+
+ if (len > 1)
+ return -SDP_INVALID_SYNTAX;
+
+ /* Output the results */
+ lst = rsp + 2;
+ max = MIN(max, MAX_RSP_PARAM_SIZE);
+ len = 3 - start;
+ end = 0;
+ for (i = 0; i < record->attributes; i ++)
+ if (record->attribute_list[i].match) {
+ if (len >= 0 && len + record->attribute_list[i].len < max) {
+ memcpy(lst + len, record->attribute_list[i].pair,
+ record->attribute_list[i].len);
+ end = len + record->attribute_list[i].len;
+ }
+ len += record->attribute_list[i].len;
+ }
+ if (0 >= start) {
+ lst[0] = SDP_DTYPE_SEQ | SDP_DSIZE_NEXT2;
+ lst[1] = (len + start - 3) >> 8;
+ lst[2] = (len + start - 3) & 0xff;
+ }
+
+ rsp[0] = end >> 8;
+ rsp[1] = end & 0xff;
+
+ if (end < len) {
+ len = end + start;
+ lst[end ++] = sizeof(int);
+ memcpy(lst + end, &len, sizeof(int));
+ end += sizeof(int);
+ } else
+ lst[end ++] = 0;
+
+ return end + 2;
+}
+
+static int sdp_svc_attr_match(struct bt_l2cap_sdp_state_s *sdp,
+ const uint8_t **req, ssize_t *len)
+{
+ int i, j, start, end;
+ struct sdp_service_record_s *record;
+
+ if (**req == (SDP_DTYPE_UINT | SDP_DSIZE_2)) {
+ (*req) ++;
+ if (*len < 3)
+ return 1;
+
+ start = (*(*req) ++) << 8;
+ start |= *(*req) ++;
+ end = start;
+ *len -= 3;
+ } else if (**req == (SDP_DTYPE_UINT | SDP_DSIZE_4)) {
+ (*req) ++;
+ if (*len < 5)
+ return 1;
+
+ start = (*(*req) ++) << 8;
+ start |= *(*req) ++;
+ end = (*(*req) ++) << 8;
+ end |= *(*req) ++;
+ *len -= 5;
+ } else
+ return 1;
+
+ for (i = 0; i < sdp->services; i ++)
+ if ((record = &sdp->service_list[i])->match)
+ for (j = 0; j < record->attributes; j ++)
+ if (record->attribute_list[j].attribute_id >= start &&
+ record->attribute_list[j].attribute_id <= end)
+ record->attribute_list[j].match = 1;
+
+ return 0;
+}
+
+static ssize_t sdp_svc_search_attr_get(struct bt_l2cap_sdp_state_s *sdp,
+ uint8_t *rsp, const uint8_t *req, ssize_t len)
+{
+ ssize_t seqlen;
+ int i, j, start, end, max;
+ struct sdp_service_record_s *record;
+ uint8_t *lst;
+
+ /* Perform the search */
+ for (i = 0; i < sdp->services; i ++) {
+ sdp->service_list[i].match = 0;
+ for (j = 0; j < sdp->service_list[i].attributes; j ++)
+ sdp->service_list[i].attribute_list[j].match = 0;
+ }
+
+ if (len < 1)
+ return -SDP_INVALID_SYNTAX;
+ if ((*req & ~SDP_DSIZE_MASK) == SDP_DTYPE_SEQ) {
+ seqlen = sdp_datalen(&req, &len);
+ if (seqlen < 3 || len < seqlen)
+ return -SDP_INVALID_SYNTAX;
+ len -= seqlen;
+
+ while (seqlen)
+ if (sdp_svc_match(sdp, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+ } else if (sdp_svc_match(sdp, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+
+ if (len < 3)
+ return -SDP_INVALID_SYNTAX;
+ max = (req[0] << 8) | req[1];
+ req += 2;
+ len -= 2;
+ if (max < 0x0007)
+ return -SDP_INVALID_SYNTAX;
+
+ if ((*req & ~SDP_DSIZE_MASK) == SDP_DTYPE_SEQ) {
+ seqlen = sdp_datalen(&req, &len);
+ if (seqlen < 3 || len < seqlen)
+ return -SDP_INVALID_SYNTAX;
+ len -= seqlen;
+
+ while (seqlen)
+ if (sdp_svc_attr_match(sdp, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+ } else if (sdp_svc_attr_match(sdp, &req, &seqlen))
+ return -SDP_INVALID_SYNTAX;
+
+ if (len < 1)
+ return -SDP_INVALID_SYNTAX;
+
+ if (*req) {
+ if (len <= sizeof(int))
+ return -SDP_INVALID_SYNTAX;
+ len -= sizeof(int);
+ memcpy(&start, req + 1, sizeof(int));
+ } else
+ start = 0;
+
+ if (len > 1)
+ return -SDP_INVALID_SYNTAX;
+
+ /* Output the results */
+ /* This assumes empty attribute lists are never to be returned even
+ * for matching Service Records. In practice this shouldn't happen
+ * as the requestor will usually include the always present
+ * ServiceRecordHandle AttributeID in AttributeIDList. */
+ lst = rsp + 2;
+ max = MIN(max, MAX_RSP_PARAM_SIZE);
+ len = 3 - start;
+ end = 0;
+ for (i = 0; i < sdp->services; i ++)
+ if ((record = &sdp->service_list[i])->match) {
+ len += 3;
+ seqlen = len;
+ for (j = 0; j < record->attributes; j ++)
+ if (record->attribute_list[j].match) {
+ if (len >= 0)
+ if (len + record->attribute_list[j].len < max) {
+ memcpy(lst + len, record->attribute_list[j].pair,
+ record->attribute_list[j].len);
+ end = len + record->attribute_list[j].len;
+ }
+ len += record->attribute_list[j].len;
+ }
+ if (seqlen == len)
+ len -= 3;
+ else if (seqlen >= 3 && seqlen < max) {
+ lst[seqlen - 3] = SDP_DTYPE_SEQ | SDP_DSIZE_NEXT2;
+ lst[seqlen - 2] = (len - seqlen) >> 8;
+ lst[seqlen - 1] = (len - seqlen) & 0xff;
+ }
+ }
+ if (len == 3 - start)
+ len -= 3;
+ else if (0 >= start) {
+ lst[0] = SDP_DTYPE_SEQ | SDP_DSIZE_NEXT2;
+ lst[1] = (len + start - 3) >> 8;
+ lst[2] = (len + start - 3) & 0xff;
+ }
+
+ rsp[0] = end >> 8;
+ rsp[1] = end & 0xff;
+
+ if (end < len) {
+ len = end + start;
+ lst[end ++] = sizeof(int);
+ memcpy(lst + end, &len, sizeof(int));
+ end += sizeof(int);
+ } else
+ lst[end ++] = 0;
+
+ return end + 2;
+}
+
+static void bt_l2cap_sdp_sdu_in(void *opaque, const uint8_t *data, int len)
+{
+ struct bt_l2cap_sdp_state_s *sdp = opaque;
+ enum bt_sdp_cmd pdu_id;
+ uint8_t rsp[MAX_PDU_OUT_SIZE - PDU_HEADER_SIZE], *sdu_out;
+ int transaction_id, plen;
+ int err = 0;
+ int rsp_len = 0;
+
+ if (len < 5) {
+ fprintf(stderr, "%s: short SDP PDU (%iB).\n", __FUNCTION__, len);
+ return;
+ }
+
+ pdu_id = *data ++;
+ transaction_id = (data[0] << 8) | data[1];
+ plen = (data[2] << 8) | data[3];
+ data += 4;
+ len -= 5;
+
+ if (len != plen) {
+ fprintf(stderr, "%s: wrong SDP PDU length (%iB != %iB).\n",
+ __FUNCTION__, plen, len);
+ err = SDP_INVALID_PDU_SIZE;
+ goto respond;
+ }
+
+ switch (pdu_id) {
+ case SDP_SVC_SEARCH_REQ:
+ rsp_len = sdp_svc_search(sdp, rsp, data, len);
+ pdu_id = SDP_SVC_SEARCH_RSP;
+ break;
+
+ case SDP_SVC_ATTR_REQ:
+ rsp_len = sdp_attr_get(sdp, rsp, data, len);
+ pdu_id = SDP_SVC_ATTR_RSP;
+ break;
+
+ case SDP_SVC_SEARCH_ATTR_REQ:
+ rsp_len = sdp_svc_search_attr_get(sdp, rsp, data, len);
+ pdu_id = SDP_SVC_SEARCH_ATTR_RSP;
+ break;
+
+ case SDP_ERROR_RSP:
+ case SDP_SVC_ATTR_RSP:
+ case SDP_SVC_SEARCH_RSP:
+ case SDP_SVC_SEARCH_ATTR_RSP:
+ default:
+ fprintf(stderr, "%s: unexpected SDP PDU ID %02x.\n",
+ __FUNCTION__, pdu_id);
+ err = SDP_INVALID_SYNTAX;
+ break;
+ }
+
+ if (rsp_len < 0) {
+ err = -rsp_len;
+ rsp_len = 0;
+ }
+
+respond:
+ if (err) {
+ pdu_id = SDP_ERROR_RSP;
+ rsp[rsp_len ++] = err >> 8;
+ rsp[rsp_len ++] = err & 0xff;
+ }
+
+ sdu_out = sdp->channel->sdu_out(sdp->channel, rsp_len + PDU_HEADER_SIZE);
+
+ sdu_out[0] = pdu_id;
+ sdu_out[1] = transaction_id >> 8;
+ sdu_out[2] = transaction_id & 0xff;
+ sdu_out[3] = rsp_len >> 8;
+ sdu_out[4] = rsp_len & 0xff;
+ memcpy(sdu_out + PDU_HEADER_SIZE, rsp, rsp_len);
+
+ sdp->channel->sdu_submit(sdp->channel);
+}
+
+static void bt_l2cap_sdp_close_ch(void *opaque)
+{
+ struct bt_l2cap_sdp_state_s *sdp = opaque;
+ int i;
+
+ for (i = 0; i < sdp->services; i ++) {
+ g_free(sdp->service_list[i].attribute_list->pair);
+ g_free(sdp->service_list[i].attribute_list);
+ g_free(sdp->service_list[i].uuid);
+ }
+ g_free(sdp->service_list);
+ g_free(sdp);
+}
+
+struct sdp_def_service_s {
+ uint16_t class_uuid;
+ struct sdp_def_attribute_s {
+ uint16_t id;
+ struct sdp_def_data_element_s {
+ uint8_t type;
+ union {
+ uint32_t uint;
+ const char *str;
+ struct sdp_def_data_element_s *list;
+ } value;
+ } data;
+ } attributes[];
+};
+
+/* Calculate a safe byte count to allocate that will store the given
+ * element, at the same time count elements of a UUID type. */
+static int sdp_attr_max_size(struct sdp_def_data_element_s *element,
+ int *uuids)
+{
+ int type = element->type & ~SDP_DSIZE_MASK;
+ int len;
+
+ if (type == SDP_DTYPE_UINT || type == SDP_DTYPE_UUID ||
+ type == SDP_DTYPE_BOOL) {
+ if (type == SDP_DTYPE_UUID)
+ (*uuids) ++;
+ return 1 + (1 << (element->type & SDP_DSIZE_MASK));
+ }
+
+ if (type == SDP_DTYPE_STRING || type == SDP_DTYPE_URL) {
+ if (element->type & SDP_DSIZE_MASK) {
+ for (len = 0; element->value.str[len] |
+ element->value.str[len + 1]; len ++);
+ return len;
+ } else
+ return 2 + strlen(element->value.str);
+ }
+
+ if (type != SDP_DTYPE_SEQ)
+ exit(-1);
+ len = 2;
+ element = element->value.list;
+ while (element->type)
+ len += sdp_attr_max_size(element ++, uuids);
+ if (len > 255)
+ exit (-1);
+
+ return len;
+}
+
+static int sdp_attr_write(uint8_t *data,
+ struct sdp_def_data_element_s *element, int **uuid)
+{
+ int type = element->type & ~SDP_DSIZE_MASK;
+ int len = 0;
+
+ if (type == SDP_DTYPE_UINT || type == SDP_DTYPE_BOOL) {
+ data[len ++] = element->type;
+ if ((element->type & SDP_DSIZE_MASK) == SDP_DSIZE_1)
+ data[len ++] = (element->value.uint >> 0) & 0xff;
+ else if ((element->type & SDP_DSIZE_MASK) == SDP_DSIZE_2) {
+ data[len ++] = (element->value.uint >> 8) & 0xff;
+ data[len ++] = (element->value.uint >> 0) & 0xff;
+ } else if ((element->type & SDP_DSIZE_MASK) == SDP_DSIZE_4) {
+ data[len ++] = (element->value.uint >> 24) & 0xff;
+ data[len ++] = (element->value.uint >> 16) & 0xff;
+ data[len ++] = (element->value.uint >> 8) & 0xff;
+ data[len ++] = (element->value.uint >> 0) & 0xff;
+ }
+
+ return len;
+ }
+
+ if (type == SDP_DTYPE_UUID) {
+ *(*uuid) ++ = element->value.uint;
+
+ data[len ++] = element->type;
+ data[len ++] = (element->value.uint >> 24) & 0xff;
+ data[len ++] = (element->value.uint >> 16) & 0xff;
+ data[len ++] = (element->value.uint >> 8) & 0xff;
+ data[len ++] = (element->value.uint >> 0) & 0xff;
+ memcpy(data + len, bt_base_uuid, 12);
+
+ return len + 12;
+ }
+
+ data[0] = type | SDP_DSIZE_NEXT1;
+ if (type == SDP_DTYPE_STRING || type == SDP_DTYPE_URL) {
+ if (element->type & SDP_DSIZE_MASK)
+ for (len = 0; element->value.str[len] |
+ element->value.str[len + 1]; len ++);
+ else
+ len = strlen(element->value.str);
+ memcpy(data + 2, element->value.str, data[1] = len);
+
+ return len + 2;
+ }
+
+ len = 2;
+ element = element->value.list;
+ while (element->type)
+ len += sdp_attr_write(data + len, element ++, uuid);
+ data[1] = len - 2;
+
+ return len;
+}
+
+static int sdp_attributeid_compare(const struct sdp_service_attribute_s *a,
+ const struct sdp_service_attribute_s *b)
+{
+ return (int) b->attribute_id - a->attribute_id;
+}
+
+static int sdp_uuid_compare(const int *a, const int *b)
+{
+ return *a - *b;
+}
+
+static void sdp_service_record_build(struct sdp_service_record_s *record,
+ struct sdp_def_service_s *def, int handle)
+{
+ int len = 0;
+ uint8_t *data;
+ int *uuid;
+
+ record->uuids = 0;
+ while (def->attributes[record->attributes].data.type) {
+ len += 3;
+ len += sdp_attr_max_size(&def->attributes[record->attributes ++].data,
+ &record->uuids);
+ }
+ record->uuids = 1 << ffs(record->uuids - 1);
+ record->attribute_list =
+ g_malloc0(record->attributes * sizeof(*record->attribute_list));
+ record->uuid =
+ g_malloc0(record->uuids * sizeof(*record->uuid));
+ data = g_malloc(len);
+
+ record->attributes = 0;
+ uuid = record->uuid;
+ while (def->attributes[record->attributes].data.type) {
+ record->attribute_list[record->attributes].pair = data;
+
+ len = 0;
+ data[len ++] = SDP_DTYPE_UINT | SDP_DSIZE_2;
+ data[len ++] = def->attributes[record->attributes].id >> 8;
+ data[len ++] = def->attributes[record->attributes].id & 0xff;
+ len += sdp_attr_write(data + len,
+ &def->attributes[record->attributes].data, &uuid);
+
+ /* Special case: assign a ServiceRecordHandle in sequence */
+ if (def->attributes[record->attributes].id == SDP_ATTR_RECORD_HANDLE)
+ def->attributes[record->attributes].data.value.uint = handle;
+ /* Note: we could also assign a ServiceDescription based on
+ * sdp->device.device->lmp_name. */
+
+ record->attribute_list[record->attributes ++].len = len;
+ data += len;
+ }
+
+ /* Sort the attribute list by the AttributeID */
+ qsort(record->attribute_list, record->attributes,
+ sizeof(*record->attribute_list),
+ (void *) sdp_attributeid_compare);
+ /* Sort the searchable UUIDs list for bisection */
+ qsort(record->uuid, record->uuids,
+ sizeof(*record->uuid),
+ (void *) sdp_uuid_compare);
+}
+
+static void sdp_service_db_build(struct bt_l2cap_sdp_state_s *sdp,
+ struct sdp_def_service_s **service)
+{
+ sdp->services = 0;
+ while (service[sdp->services])
+ sdp->services ++;
+ sdp->service_list =
+ g_malloc0(sdp->services * sizeof(*sdp->service_list));
+
+ sdp->services = 0;
+ while (*service) {
+ sdp_service_record_build(&sdp->service_list[sdp->services],
+ *service, sdp->services);
+ service ++;
+ sdp->services ++;
+ }
+}
+
+#define LAST { .type = 0 }
+#define SERVICE(name, attrs) \
+ static struct sdp_def_service_s glue(glue(sdp_service_, name), _s) = { \
+ .attributes = { attrs { .data = LAST } }, \
+ };
+#define ATTRIBUTE(attrid, val) { .id = glue(SDP_ATTR_, attrid), .data = val },
+#define UINT8(val) { \
+ .type = SDP_DTYPE_UINT | SDP_DSIZE_1, \
+ .value.uint = val, \
+ },
+#define UINT16(val) { \
+ .type = SDP_DTYPE_UINT | SDP_DSIZE_2, \
+ .value.uint = val, \
+ },
+#define UINT32(val) { \
+ .type = SDP_DTYPE_UINT | SDP_DSIZE_4, \
+ .value.uint = val, \
+ },
+#define UUID128(val) { \
+ .type = SDP_DTYPE_UUID | SDP_DSIZE_16, \
+ .value.uint = val, \
+ },
+#define SDP_TRUE { \
+ .type = SDP_DTYPE_BOOL | SDP_DSIZE_1, \
+ .value.uint = 1, \
+ },
+#define SDP_FALSE { \
+ .type = SDP_DTYPE_BOOL | SDP_DSIZE_1, \
+ .value.uint = 0, \
+ },
+#define STRING(val) { \
+ .type = SDP_DTYPE_STRING, \
+ .value.str = val, \
+ },
+#define ARRAY(...) { \
+ .type = SDP_DTYPE_STRING | SDP_DSIZE_2, \
+ .value.str = (char []) { __VA_ARGS__, 0, 0 }, \
+ },
+#define URL(val) { \
+ .type = SDP_DTYPE_URL, \
+ .value.str = val, \
+ },
+#if 1
+#define LIST(val) { \
+ .type = SDP_DTYPE_SEQ, \
+ .value.list = (struct sdp_def_data_element_s []) { val LAST }, \
+ },
+#endif
+
+/* Try to keep each single attribute below MAX_PDU_OUT_SIZE bytes
+ * in resulting SDP data representation size. */
+
+SERVICE(hid,
+ ATTRIBUTE(RECORD_HANDLE, UINT32(0)) /* Filled in later */
+ ATTRIBUTE(SVCLASS_ID_LIST, LIST(UUID128(HID_SVCLASS_ID)))
+ ATTRIBUTE(RECORD_STATE, UINT32(1))
+ ATTRIBUTE(PROTO_DESC_LIST, LIST(
+ LIST(UUID128(L2CAP_UUID) UINT16(BT_PSM_HID_CTRL))
+ LIST(UUID128(HIDP_UUID))
+ ))
+ ATTRIBUTE(BROWSE_GRP_LIST, LIST(UUID128(0x1002)))
+ ATTRIBUTE(LANG_BASE_ATTR_ID_LIST, LIST(
+ UINT16(0x656e) UINT16(0x006a) UINT16(0x0100)
+ ))
+ ATTRIBUTE(PFILE_DESC_LIST, LIST(
+ LIST(UUID128(HID_PROFILE_ID) UINT16(0x0100))
+ ))
+ ATTRIBUTE(DOC_URL, URL("http://bellard.org/qemu/user-doc.html"))
+ ATTRIBUTE(SVCNAME_PRIMARY, STRING("QEMU Bluetooth HID"))
+ ATTRIBUTE(SVCDESC_PRIMARY, STRING("QEMU Keyboard/Mouse"))
+ ATTRIBUTE(SVCPROV_PRIMARY, STRING("QEMU"))
+
+ /* Profile specific */
+ ATTRIBUTE(DEVICE_RELEASE_NUMBER, UINT16(0x0091)) /* Deprecated, remove */
+ ATTRIBUTE(PARSER_VERSION, UINT16(0x0111))
+ /* TODO: extract from l2cap_device->device.class[0] */
+ ATTRIBUTE(DEVICE_SUBCLASS, UINT8(0x40))
+ ATTRIBUTE(COUNTRY_CODE, UINT8(0x15))
+ ATTRIBUTE(VIRTUAL_CABLE, SDP_TRUE)
+ ATTRIBUTE(RECONNECT_INITIATE, SDP_FALSE)
+ /* TODO: extract from hid->usbdev->report_desc */
+ ATTRIBUTE(DESCRIPTOR_LIST, LIST(
+ LIST(UINT8(0x22) ARRAY(
+ 0x05, 0x01, /* Usage Page (Generic Desktop) */
+ 0x09, 0x06, /* Usage (Keyboard) */
+ 0xa1, 0x01, /* Collection (Application) */
+ 0x75, 0x01, /* Report Size (1) */
+ 0x95, 0x08, /* Report Count (8) */
+ 0x05, 0x07, /* Usage Page (Key Codes) */
+ 0x19, 0xe0, /* Usage Minimum (224) */
+ 0x29, 0xe7, /* Usage Maximum (231) */
+ 0x15, 0x00, /* Logical Minimum (0) */
+ 0x25, 0x01, /* Logical Maximum (1) */
+ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
+ 0x95, 0x01, /* Report Count (1) */
+ 0x75, 0x08, /* Report Size (8) */
+ 0x81, 0x01, /* Input (Constant) */
+ 0x95, 0x05, /* Report Count (5) */
+ 0x75, 0x01, /* Report Size (1) */
+ 0x05, 0x08, /* Usage Page (LEDs) */
+ 0x19, 0x01, /* Usage Minimum (1) */
+ 0x29, 0x05, /* Usage Maximum (5) */
+ 0x91, 0x02, /* Output (Data, Variable, Absolute) */
+ 0x95, 0x01, /* Report Count (1) */
+ 0x75, 0x03, /* Report Size (3) */
+ 0x91, 0x01, /* Output (Constant) */
+ 0x95, 0x06, /* Report Count (6) */
+ 0x75, 0x08, /* Report Size (8) */
+ 0x15, 0x00, /* Logical Minimum (0) */
+ 0x25, 0xff, /* Logical Maximum (255) */
+ 0x05, 0x07, /* Usage Page (Key Codes) */
+ 0x19, 0x00, /* Usage Minimum (0) */
+ 0x29, 0xff, /* Usage Maximum (255) */
+ 0x81, 0x00, /* Input (Data, Array) */
+ 0xc0 /* End Collection */
+ ))))
+ ATTRIBUTE(LANG_ID_BASE_LIST, LIST(
+ LIST(UINT16(0x0409) UINT16(0x0100))
+ ))
+ ATTRIBUTE(SDP_DISABLE, SDP_FALSE)
+ ATTRIBUTE(BATTERY_POWER, SDP_TRUE)
+ ATTRIBUTE(REMOTE_WAKEUP, SDP_TRUE)
+ ATTRIBUTE(BOOT_DEVICE, SDP_TRUE) /* XXX: untested */
+ ATTRIBUTE(SUPERVISION_TIMEOUT, UINT16(0x0c80))
+ ATTRIBUTE(NORMALLY_CONNECTABLE, SDP_TRUE)
+ ATTRIBUTE(PROFILE_VERSION, UINT16(0x0100))
+)
+
+SERVICE(sdp,
+ ATTRIBUTE(RECORD_HANDLE, UINT32(0)) /* Filled in later */
+ ATTRIBUTE(SVCLASS_ID_LIST, LIST(UUID128(SDP_SERVER_SVCLASS_ID)))
+ ATTRIBUTE(RECORD_STATE, UINT32(1))
+ ATTRIBUTE(PROTO_DESC_LIST, LIST(
+ LIST(UUID128(L2CAP_UUID) UINT16(BT_PSM_SDP))
+ LIST(UUID128(SDP_UUID))
+ ))
+ ATTRIBUTE(BROWSE_GRP_LIST, LIST(UUID128(0x1002)))
+ ATTRIBUTE(LANG_BASE_ATTR_ID_LIST, LIST(
+ UINT16(0x656e) UINT16(0x006a) UINT16(0x0100)
+ ))
+ ATTRIBUTE(PFILE_DESC_LIST, LIST(
+ LIST(UUID128(SDP_SERVER_PROFILE_ID) UINT16(0x0100))
+ ))
+ ATTRIBUTE(DOC_URL, URL("http://bellard.org/qemu/user-doc.html"))
+ ATTRIBUTE(SVCPROV_PRIMARY, STRING("QEMU"))
+
+ /* Profile specific */
+ ATTRIBUTE(VERSION_NUM_LIST, LIST(UINT16(0x0100)))
+ ATTRIBUTE(SVCDB_STATE , UINT32(1))
+)
+
+SERVICE(pnp,
+ ATTRIBUTE(RECORD_HANDLE, UINT32(0)) /* Filled in later */
+ ATTRIBUTE(SVCLASS_ID_LIST, LIST(UUID128(PNP_INFO_SVCLASS_ID)))
+ ATTRIBUTE(RECORD_STATE, UINT32(1))
+ ATTRIBUTE(PROTO_DESC_LIST, LIST(
+ LIST(UUID128(L2CAP_UUID) UINT16(BT_PSM_SDP))
+ LIST(UUID128(SDP_UUID))
+ ))
+ ATTRIBUTE(BROWSE_GRP_LIST, LIST(UUID128(0x1002)))
+ ATTRIBUTE(LANG_BASE_ATTR_ID_LIST, LIST(
+ UINT16(0x656e) UINT16(0x006a) UINT16(0x0100)
+ ))
+ ATTRIBUTE(PFILE_DESC_LIST, LIST(
+ LIST(UUID128(PNP_INFO_PROFILE_ID) UINT16(0x0100))
+ ))
+ ATTRIBUTE(DOC_URL, URL("http://bellard.org/qemu/user-doc.html"))
+ ATTRIBUTE(SVCPROV_PRIMARY, STRING("QEMU"))
+
+ /* Profile specific */
+ ATTRIBUTE(SPECIFICATION_ID, UINT16(0x0100))
+ ATTRIBUTE(VERSION, UINT16(0x0100))
+ ATTRIBUTE(PRIMARY_RECORD, SDP_TRUE)
+)
+
+static int bt_l2cap_sdp_new_ch(struct bt_l2cap_device_s *dev,
+ struct bt_l2cap_conn_params_s *params)
+{
+ struct bt_l2cap_sdp_state_s *sdp = g_malloc0(sizeof(*sdp));
+ struct sdp_def_service_s *services[] = {
+ &sdp_service_sdp_s,
+ &sdp_service_hid_s,
+ &sdp_service_pnp_s,
+ NULL,
+ };
+
+ sdp->channel = params;
+ sdp->channel->opaque = sdp;
+ sdp->channel->close = bt_l2cap_sdp_close_ch;
+ sdp->channel->sdu_in = bt_l2cap_sdp_sdu_in;
+
+ sdp_service_db_build(sdp, services);
+
+ return 0;
+}
+
+void bt_l2cap_sdp_init(struct bt_l2cap_device_s *dev)
+{
+ bt_l2cap_psm_register(dev, BT_PSM_SDP,
+ MAX_PDU_OUT_SIZE, bt_l2cap_sdp_new_ch);
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-04-28 12:15:46 +0000