1baeef614SMaksim Yevmenkin /* 2baeef614SMaksim Yevmenkin * hci.c 3baeef614SMaksim Yevmenkin */ 4baeef614SMaksim Yevmenkin 5baeef614SMaksim Yevmenkin /*- 65e53a4f9SPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 75e53a4f9SPedro F. Giffuni * 8baeef614SMaksim Yevmenkin * Copyright (c) 2009 Maksim Yevmenkin <m_evmenkin@yahoo.com> 9baeef614SMaksim Yevmenkin * All rights reserved. 10baeef614SMaksim Yevmenkin * 11baeef614SMaksim Yevmenkin * Redistribution and use in source and binary forms, with or without 12baeef614SMaksim Yevmenkin * modification, are permitted provided that the following conditions 13baeef614SMaksim Yevmenkin * are met: 14baeef614SMaksim Yevmenkin * 1. Redistributions of source code must retain the above copyright 15baeef614SMaksim Yevmenkin * notice, this list of conditions and the following disclaimer. 16baeef614SMaksim Yevmenkin * 2. Redistributions in binary form must reproduce the above copyright 17baeef614SMaksim Yevmenkin * notice, this list of conditions and the following disclaimer in the 18baeef614SMaksim Yevmenkin * documentation and/or other materials provided with the distribution. 19baeef614SMaksim Yevmenkin * 20baeef614SMaksim Yevmenkin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21baeef614SMaksim Yevmenkin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22baeef614SMaksim Yevmenkin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23baeef614SMaksim Yevmenkin * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24baeef614SMaksim Yevmenkin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25baeef614SMaksim Yevmenkin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26baeef614SMaksim Yevmenkin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27baeef614SMaksim Yevmenkin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28baeef614SMaksim Yevmenkin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29baeef614SMaksim Yevmenkin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30baeef614SMaksim Yevmenkin * SUCH DAMAGE. 31baeef614SMaksim Yevmenkin * 32baeef614SMaksim Yevmenkin * $FreeBSD$ 33baeef614SMaksim Yevmenkin */ 34baeef614SMaksim Yevmenkin 3578b96635SMaksim Yevmenkin #include <assert.h> 368d6f425dSTakanori Watanabe #define L2CAP_SOCKET_CHECKED 37baeef614SMaksim Yevmenkin #include <bluetooth.h> 3878b96635SMaksim Yevmenkin #include <inttypes.h> 39baeef614SMaksim Yevmenkin #include <stdio.h> 40baeef614SMaksim Yevmenkin #include <stdlib.h> 41baeef614SMaksim Yevmenkin #include <string.h> 42baeef614SMaksim Yevmenkin #include <unistd.h> 43baeef614SMaksim Yevmenkin 4478b96635SMaksim Yevmenkin #undef MIN 4578b96635SMaksim Yevmenkin #define MIN(a, b) (((a) < (b))? (a) : (b)) 4678b96635SMaksim Yevmenkin 4778b96635SMaksim Yevmenkin static int bt_devany_cb(int s, struct bt_devinfo const *di, void *xdevname); 48baeef614SMaksim Yevmenkin static char * bt_dev2node (char const *devname, char *nodename, int nnlen); 49baeef614SMaksim Yevmenkin 50baeef614SMaksim Yevmenkin int 5178b96635SMaksim Yevmenkin bt_devopen(char const *devname) 5278b96635SMaksim Yevmenkin { 5378b96635SMaksim Yevmenkin struct sockaddr_hci ha; 5478b96635SMaksim Yevmenkin bdaddr_t ba; 5578b96635SMaksim Yevmenkin int s; 5678b96635SMaksim Yevmenkin 5778b96635SMaksim Yevmenkin if (devname == NULL) { 5878b96635SMaksim Yevmenkin errno = EINVAL; 5978b96635SMaksim Yevmenkin return (-1); 6078b96635SMaksim Yevmenkin } 6178b96635SMaksim Yevmenkin 6278b96635SMaksim Yevmenkin memset(&ha, 0, sizeof(ha)); 6378b96635SMaksim Yevmenkin ha.hci_len = sizeof(ha); 6478b96635SMaksim Yevmenkin ha.hci_family = AF_BLUETOOTH; 6578b96635SMaksim Yevmenkin 6678b96635SMaksim Yevmenkin if (bt_aton(devname, &ba)) { 6778b96635SMaksim Yevmenkin if (!bt_devname(ha.hci_node, &ba)) 6878b96635SMaksim Yevmenkin return (-1); 6978b96635SMaksim Yevmenkin } else if (bt_dev2node(devname, ha.hci_node, 7078b96635SMaksim Yevmenkin sizeof(ha.hci_node)) == NULL) { 7178b96635SMaksim Yevmenkin errno = ENXIO; 7278b96635SMaksim Yevmenkin return (-1); 7378b96635SMaksim Yevmenkin } 7478b96635SMaksim Yevmenkin 7578b96635SMaksim Yevmenkin s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI); 7678b96635SMaksim Yevmenkin if (s < 0) 7778b96635SMaksim Yevmenkin return (-1); 7878b96635SMaksim Yevmenkin 7978b96635SMaksim Yevmenkin if (bind(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 || 8078b96635SMaksim Yevmenkin connect(s, (struct sockaddr *) &ha, sizeof(ha)) < 0) { 8178b96635SMaksim Yevmenkin close(s); 8278b96635SMaksim Yevmenkin return (-1); 8378b96635SMaksim Yevmenkin } 8478b96635SMaksim Yevmenkin 8578b96635SMaksim Yevmenkin return (s); 8678b96635SMaksim Yevmenkin } 8778b96635SMaksim Yevmenkin 8878b96635SMaksim Yevmenkin int 8978b96635SMaksim Yevmenkin bt_devclose(int s) 9078b96635SMaksim Yevmenkin { 9178b96635SMaksim Yevmenkin return (close(s)); 9278b96635SMaksim Yevmenkin } 9378b96635SMaksim Yevmenkin 9478b96635SMaksim Yevmenkin int 9578b96635SMaksim Yevmenkin bt_devsend(int s, uint16_t opcode, void *param, size_t plen) 9678b96635SMaksim Yevmenkin { 9778b96635SMaksim Yevmenkin ng_hci_cmd_pkt_t h; 9878b96635SMaksim Yevmenkin struct iovec iv[2]; 9978b96635SMaksim Yevmenkin int ivn; 10078b96635SMaksim Yevmenkin 10178b96635SMaksim Yevmenkin if ((plen == 0 && param != NULL) || 10278b96635SMaksim Yevmenkin (plen > 0 && param == NULL) || 10378b96635SMaksim Yevmenkin plen > UINT8_MAX) { 10478b96635SMaksim Yevmenkin errno = EINVAL; 10578b96635SMaksim Yevmenkin return (-1); 10678b96635SMaksim Yevmenkin } 10778b96635SMaksim Yevmenkin 10878b96635SMaksim Yevmenkin iv[0].iov_base = &h; 10978b96635SMaksim Yevmenkin iv[0].iov_len = sizeof(h); 11078b96635SMaksim Yevmenkin ivn = 1; 11178b96635SMaksim Yevmenkin 11278b96635SMaksim Yevmenkin h.type = NG_HCI_CMD_PKT; 11378b96635SMaksim Yevmenkin h.opcode = htole16(opcode); 11478b96635SMaksim Yevmenkin if (plen > 0) { 11578b96635SMaksim Yevmenkin h.length = plen; 11678b96635SMaksim Yevmenkin 11778b96635SMaksim Yevmenkin iv[1].iov_base = param; 11878b96635SMaksim Yevmenkin iv[1].iov_len = plen; 11978b96635SMaksim Yevmenkin ivn = 2; 12078b96635SMaksim Yevmenkin } else 12178b96635SMaksim Yevmenkin h.length = 0; 12278b96635SMaksim Yevmenkin 12378b96635SMaksim Yevmenkin while (writev(s, iv, ivn) < 0) { 12478b96635SMaksim Yevmenkin if (errno == EAGAIN || errno == EINTR) 12578b96635SMaksim Yevmenkin continue; 12678b96635SMaksim Yevmenkin 12778b96635SMaksim Yevmenkin return (-1); 12878b96635SMaksim Yevmenkin } 12978b96635SMaksim Yevmenkin 13078b96635SMaksim Yevmenkin return (0); 13178b96635SMaksim Yevmenkin } 13278b96635SMaksim Yevmenkin 13378b96635SMaksim Yevmenkin ssize_t 13478b96635SMaksim Yevmenkin bt_devrecv(int s, void *buf, size_t size, time_t to) 13578b96635SMaksim Yevmenkin { 13678b96635SMaksim Yevmenkin ssize_t n; 13778b96635SMaksim Yevmenkin 13878b96635SMaksim Yevmenkin if (buf == NULL || size == 0) { 13978b96635SMaksim Yevmenkin errno = EINVAL; 14078b96635SMaksim Yevmenkin return (-1); 14178b96635SMaksim Yevmenkin } 14278b96635SMaksim Yevmenkin 14378b96635SMaksim Yevmenkin if (to >= 0) { 14478b96635SMaksim Yevmenkin fd_set rfd; 14578b96635SMaksim Yevmenkin struct timeval tv; 14678b96635SMaksim Yevmenkin 14778b96635SMaksim Yevmenkin FD_ZERO(&rfd); 14878b96635SMaksim Yevmenkin FD_SET(s, &rfd); 14978b96635SMaksim Yevmenkin 15078b96635SMaksim Yevmenkin tv.tv_sec = to; 15178b96635SMaksim Yevmenkin tv.tv_usec = 0; 15278b96635SMaksim Yevmenkin 15378b96635SMaksim Yevmenkin while ((n = select(s + 1, &rfd, NULL, NULL, &tv)) < 0) { 15478b96635SMaksim Yevmenkin if (errno == EAGAIN || errno == EINTR) 15578b96635SMaksim Yevmenkin continue; 15678b96635SMaksim Yevmenkin 15778b96635SMaksim Yevmenkin return (-1); 15878b96635SMaksim Yevmenkin } 15978b96635SMaksim Yevmenkin 16078b96635SMaksim Yevmenkin if (n == 0) { 16178b96635SMaksim Yevmenkin errno = ETIMEDOUT; 16278b96635SMaksim Yevmenkin return (-1); 16378b96635SMaksim Yevmenkin } 16478b96635SMaksim Yevmenkin 16578b96635SMaksim Yevmenkin assert(FD_ISSET(s, &rfd)); 16678b96635SMaksim Yevmenkin } 16778b96635SMaksim Yevmenkin 16878b96635SMaksim Yevmenkin while ((n = read(s, buf, size)) < 0) { 16978b96635SMaksim Yevmenkin if (errno == EAGAIN || errno == EINTR) 17078b96635SMaksim Yevmenkin continue; 17178b96635SMaksim Yevmenkin 17278b96635SMaksim Yevmenkin return (-1); 17378b96635SMaksim Yevmenkin } 17478b96635SMaksim Yevmenkin 17578b96635SMaksim Yevmenkin switch (*((uint8_t *) buf)) { 17678b96635SMaksim Yevmenkin case NG_HCI_CMD_PKT: { 17778b96635SMaksim Yevmenkin ng_hci_cmd_pkt_t *h = (ng_hci_cmd_pkt_t *) buf; 17878b96635SMaksim Yevmenkin 17978b96635SMaksim Yevmenkin if (n >= sizeof(*h) && n == (sizeof(*h) + h->length)) 18078b96635SMaksim Yevmenkin return (n); 18178b96635SMaksim Yevmenkin } break; 18278b96635SMaksim Yevmenkin 18378b96635SMaksim Yevmenkin case NG_HCI_ACL_DATA_PKT: { 18478b96635SMaksim Yevmenkin ng_hci_acldata_pkt_t *h = (ng_hci_acldata_pkt_t *) buf; 18578b96635SMaksim Yevmenkin 18678b96635SMaksim Yevmenkin if (n >= sizeof(*h) && n == (sizeof(*h) + le16toh(h->length))) 18778b96635SMaksim Yevmenkin return (n); 18878b96635SMaksim Yevmenkin } break; 18978b96635SMaksim Yevmenkin 19078b96635SMaksim Yevmenkin case NG_HCI_SCO_DATA_PKT: { 19178b96635SMaksim Yevmenkin ng_hci_scodata_pkt_t *h = (ng_hci_scodata_pkt_t *) buf; 19278b96635SMaksim Yevmenkin 19378b96635SMaksim Yevmenkin if (n >= sizeof(*h) && n == (sizeof(*h) + h->length)) 19478b96635SMaksim Yevmenkin return (n); 19578b96635SMaksim Yevmenkin } break; 19678b96635SMaksim Yevmenkin 19778b96635SMaksim Yevmenkin case NG_HCI_EVENT_PKT: { 19878b96635SMaksim Yevmenkin ng_hci_event_pkt_t *h = (ng_hci_event_pkt_t *) buf; 19978b96635SMaksim Yevmenkin 20078b96635SMaksim Yevmenkin if (n >= sizeof(*h) && n == (sizeof(*h) + h->length)) 20178b96635SMaksim Yevmenkin return (n); 20278b96635SMaksim Yevmenkin } break; 20378b96635SMaksim Yevmenkin } 20478b96635SMaksim Yevmenkin 20578b96635SMaksim Yevmenkin errno = EIO; 20678b96635SMaksim Yevmenkin return (-1); 20778b96635SMaksim Yevmenkin } 20878b96635SMaksim Yevmenkin 20978b96635SMaksim Yevmenkin int 21078b96635SMaksim Yevmenkin bt_devreq(int s, struct bt_devreq *r, time_t to) 21178b96635SMaksim Yevmenkin { 21278b96635SMaksim Yevmenkin uint8_t buf[320]; /* more than enough */ 21378b96635SMaksim Yevmenkin ng_hci_event_pkt_t *e = (ng_hci_event_pkt_t *) buf; 21478b96635SMaksim Yevmenkin ng_hci_command_compl_ep *cc = (ng_hci_command_compl_ep *)(e+1); 21578b96635SMaksim Yevmenkin ng_hci_command_status_ep *cs = (ng_hci_command_status_ep*)(e+1); 21678b96635SMaksim Yevmenkin struct bt_devfilter old, new; 21778b96635SMaksim Yevmenkin time_t t_end; 21878b96635SMaksim Yevmenkin uint16_t opcode; 21978b96635SMaksim Yevmenkin ssize_t n; 22078b96635SMaksim Yevmenkin int error; 22178b96635SMaksim Yevmenkin 22278b96635SMaksim Yevmenkin if (s < 0 || r == NULL || to < 0) { 22378b96635SMaksim Yevmenkin errno = EINVAL; 22478b96635SMaksim Yevmenkin return (-1); 22578b96635SMaksim Yevmenkin } 22678b96635SMaksim Yevmenkin 22778b96635SMaksim Yevmenkin if ((r->rlen == 0 && r->rparam != NULL) || 22878b96635SMaksim Yevmenkin (r->rlen > 0 && r->rparam == NULL)) { 22978b96635SMaksim Yevmenkin errno = EINVAL; 23078b96635SMaksim Yevmenkin return (-1); 23178b96635SMaksim Yevmenkin } 23278b96635SMaksim Yevmenkin 23378b96635SMaksim Yevmenkin memset(&new, 0, sizeof(new)); 23478b96635SMaksim Yevmenkin bt_devfilter_pkt_set(&new, NG_HCI_EVENT_PKT); 23578b96635SMaksim Yevmenkin bt_devfilter_evt_set(&new, NG_HCI_EVENT_COMMAND_COMPL); 23678b96635SMaksim Yevmenkin bt_devfilter_evt_set(&new, NG_HCI_EVENT_COMMAND_STATUS); 23778b96635SMaksim Yevmenkin if (r->event != 0) 23878b96635SMaksim Yevmenkin bt_devfilter_evt_set(&new, r->event); 23978b96635SMaksim Yevmenkin 24078b96635SMaksim Yevmenkin if (bt_devfilter(s, &new, &old) < 0) 24178b96635SMaksim Yevmenkin return (-1); 24278b96635SMaksim Yevmenkin 24378b96635SMaksim Yevmenkin error = 0; 24478b96635SMaksim Yevmenkin 24578b96635SMaksim Yevmenkin n = bt_devsend(s, r->opcode, r->cparam, r->clen); 24678b96635SMaksim Yevmenkin if (n < 0) { 24778b96635SMaksim Yevmenkin error = errno; 24878b96635SMaksim Yevmenkin goto out; 24978b96635SMaksim Yevmenkin } 25078b96635SMaksim Yevmenkin 25178b96635SMaksim Yevmenkin opcode = htole16(r->opcode); 25278b96635SMaksim Yevmenkin t_end = time(NULL) + to; 25378b96635SMaksim Yevmenkin 25478b96635SMaksim Yevmenkin do { 25578b96635SMaksim Yevmenkin to = t_end - time(NULL); 25678b96635SMaksim Yevmenkin if (to < 0) 25778b96635SMaksim Yevmenkin to = 0; 25878b96635SMaksim Yevmenkin 25978b96635SMaksim Yevmenkin n = bt_devrecv(s, buf, sizeof(buf), to); 26078b96635SMaksim Yevmenkin if (n < 0) { 26178b96635SMaksim Yevmenkin error = errno; 26278b96635SMaksim Yevmenkin goto out; 26378b96635SMaksim Yevmenkin } 26478b96635SMaksim Yevmenkin 26578b96635SMaksim Yevmenkin if (e->type != NG_HCI_EVENT_PKT) { 26678b96635SMaksim Yevmenkin error = EIO; 26778b96635SMaksim Yevmenkin goto out; 26878b96635SMaksim Yevmenkin } 26978b96635SMaksim Yevmenkin 27078b96635SMaksim Yevmenkin n -= sizeof(*e); 27178b96635SMaksim Yevmenkin 27278b96635SMaksim Yevmenkin switch (e->event) { 27378b96635SMaksim Yevmenkin case NG_HCI_EVENT_COMMAND_COMPL: 27478b96635SMaksim Yevmenkin if (cc->opcode == opcode) { 27578b96635SMaksim Yevmenkin n -= sizeof(*cc); 27678b96635SMaksim Yevmenkin 27778b96635SMaksim Yevmenkin if (r->rlen >= n) { 27878b96635SMaksim Yevmenkin r->rlen = n; 27978b96635SMaksim Yevmenkin memcpy(r->rparam, cc + 1, r->rlen); 28078b96635SMaksim Yevmenkin } 28178b96635SMaksim Yevmenkin 28278b96635SMaksim Yevmenkin goto out; 28378b96635SMaksim Yevmenkin } 28478b96635SMaksim Yevmenkin break; 28578b96635SMaksim Yevmenkin 28678b96635SMaksim Yevmenkin case NG_HCI_EVENT_COMMAND_STATUS: 28778b96635SMaksim Yevmenkin if (cs->opcode == opcode) { 28878b96635SMaksim Yevmenkin if (r->event != NG_HCI_EVENT_COMMAND_STATUS) { 28978b96635SMaksim Yevmenkin if (cs->status != 0) { 29078b96635SMaksim Yevmenkin error = EIO; 29178b96635SMaksim Yevmenkin goto out; 29278b96635SMaksim Yevmenkin } 29378b96635SMaksim Yevmenkin } else { 29478b96635SMaksim Yevmenkin if (r->rlen >= n) { 29578b96635SMaksim Yevmenkin r->rlen = n; 29678b96635SMaksim Yevmenkin memcpy(r->rparam, cs, r->rlen); 29778b96635SMaksim Yevmenkin } 29878b96635SMaksim Yevmenkin 29978b96635SMaksim Yevmenkin goto out; 30078b96635SMaksim Yevmenkin } 30178b96635SMaksim Yevmenkin } 30278b96635SMaksim Yevmenkin break; 30378b96635SMaksim Yevmenkin 30478b96635SMaksim Yevmenkin default: 30578b96635SMaksim Yevmenkin if (e->event == r->event) { 30678b96635SMaksim Yevmenkin if (r->rlen >= n) { 30778b96635SMaksim Yevmenkin r->rlen = n; 30878b96635SMaksim Yevmenkin memcpy(r->rparam, e + 1, r->rlen); 30978b96635SMaksim Yevmenkin } 31078b96635SMaksim Yevmenkin 31178b96635SMaksim Yevmenkin goto out; 31278b96635SMaksim Yevmenkin } 31378b96635SMaksim Yevmenkin break; 31478b96635SMaksim Yevmenkin } 31578b96635SMaksim Yevmenkin } while (to > 0); 31678b96635SMaksim Yevmenkin 31778b96635SMaksim Yevmenkin error = ETIMEDOUT; 31878b96635SMaksim Yevmenkin out: 31978b96635SMaksim Yevmenkin bt_devfilter(s, &old, NULL); 32078b96635SMaksim Yevmenkin 32178b96635SMaksim Yevmenkin if (error != 0) { 32278b96635SMaksim Yevmenkin errno = error; 32378b96635SMaksim Yevmenkin return (-1); 32478b96635SMaksim Yevmenkin } 32578b96635SMaksim Yevmenkin 32678b96635SMaksim Yevmenkin return (0); 32778b96635SMaksim Yevmenkin } 32878b96635SMaksim Yevmenkin 32978b96635SMaksim Yevmenkin int 33078b96635SMaksim Yevmenkin bt_devfilter(int s, struct bt_devfilter const *new, struct bt_devfilter *old) 33178b96635SMaksim Yevmenkin { 33278b96635SMaksim Yevmenkin struct ng_btsocket_hci_raw_filter f; 33378b96635SMaksim Yevmenkin socklen_t len; 33478b96635SMaksim Yevmenkin 33578b96635SMaksim Yevmenkin if (new == NULL && old == NULL) { 33678b96635SMaksim Yevmenkin errno = EINVAL; 33778b96635SMaksim Yevmenkin return (-1); 33878b96635SMaksim Yevmenkin } 33978b96635SMaksim Yevmenkin 34078b96635SMaksim Yevmenkin if (old != NULL) { 34178b96635SMaksim Yevmenkin len = sizeof(f); 34278b96635SMaksim Yevmenkin if (getsockopt(s, SOL_HCI_RAW, SO_HCI_RAW_FILTER, &f, &len) < 0) 34378b96635SMaksim Yevmenkin return (-1); 34478b96635SMaksim Yevmenkin 34578b96635SMaksim Yevmenkin memset(old, 0, sizeof(*old)); 34678b96635SMaksim Yevmenkin memcpy(old->packet_mask, &f.packet_mask, 34778b96635SMaksim Yevmenkin MIN(sizeof(old->packet_mask), sizeof(f.packet_mask))); 34878b96635SMaksim Yevmenkin memcpy(old->event_mask, &f.event_mask, 34978b96635SMaksim Yevmenkin MIN(sizeof(old->event_mask), sizeof(f.packet_mask))); 35078b96635SMaksim Yevmenkin } 35178b96635SMaksim Yevmenkin 35278b96635SMaksim Yevmenkin if (new != NULL) { 35378b96635SMaksim Yevmenkin memset(&f, 0, sizeof(f)); 35478b96635SMaksim Yevmenkin memcpy(&f.packet_mask, new->packet_mask, 35578b96635SMaksim Yevmenkin MIN(sizeof(f.packet_mask), sizeof(new->event_mask))); 35678b96635SMaksim Yevmenkin memcpy(&f.event_mask, new->event_mask, 35778b96635SMaksim Yevmenkin MIN(sizeof(f.event_mask), sizeof(new->event_mask))); 35878b96635SMaksim Yevmenkin 35978b96635SMaksim Yevmenkin len = sizeof(f); 36078b96635SMaksim Yevmenkin if (setsockopt(s, SOL_HCI_RAW, SO_HCI_RAW_FILTER, &f, len) < 0) 36178b96635SMaksim Yevmenkin return (-1); 36278b96635SMaksim Yevmenkin } 36378b96635SMaksim Yevmenkin 36478b96635SMaksim Yevmenkin return (0); 36578b96635SMaksim Yevmenkin } 36678b96635SMaksim Yevmenkin 36778b96635SMaksim Yevmenkin void 36878b96635SMaksim Yevmenkin bt_devfilter_pkt_set(struct bt_devfilter *filter, uint8_t type) 36978b96635SMaksim Yevmenkin { 37078b96635SMaksim Yevmenkin bit_set(filter->packet_mask, type - 1); 37178b96635SMaksim Yevmenkin } 37278b96635SMaksim Yevmenkin 37378b96635SMaksim Yevmenkin void 37478b96635SMaksim Yevmenkin bt_devfilter_pkt_clr(struct bt_devfilter *filter, uint8_t type) 37578b96635SMaksim Yevmenkin { 37678b96635SMaksim Yevmenkin bit_clear(filter->packet_mask, type - 1); 37778b96635SMaksim Yevmenkin } 37878b96635SMaksim Yevmenkin 37978b96635SMaksim Yevmenkin int 38078b96635SMaksim Yevmenkin bt_devfilter_pkt_tst(struct bt_devfilter const *filter, uint8_t type) 38178b96635SMaksim Yevmenkin { 38278b96635SMaksim Yevmenkin return (bit_test(filter->packet_mask, type - 1)); 38378b96635SMaksim Yevmenkin } 38478b96635SMaksim Yevmenkin 38578b96635SMaksim Yevmenkin void 38678b96635SMaksim Yevmenkin bt_devfilter_evt_set(struct bt_devfilter *filter, uint8_t event) 38778b96635SMaksim Yevmenkin { 38878b96635SMaksim Yevmenkin bit_set(filter->event_mask, event - 1); 38978b96635SMaksim Yevmenkin } 39078b96635SMaksim Yevmenkin 39178b96635SMaksim Yevmenkin void 39278b96635SMaksim Yevmenkin bt_devfilter_evt_clr(struct bt_devfilter *filter, uint8_t event) 39378b96635SMaksim Yevmenkin { 39478b96635SMaksim Yevmenkin bit_clear(filter->event_mask, event - 1); 39578b96635SMaksim Yevmenkin } 39678b96635SMaksim Yevmenkin 39778b96635SMaksim Yevmenkin int 39878b96635SMaksim Yevmenkin bt_devfilter_evt_tst(struct bt_devfilter const *filter, uint8_t event) 39978b96635SMaksim Yevmenkin { 40078b96635SMaksim Yevmenkin return (bit_test(filter->event_mask, event - 1)); 40178b96635SMaksim Yevmenkin } 40278b96635SMaksim Yevmenkin 40378b96635SMaksim Yevmenkin int 40478b96635SMaksim Yevmenkin bt_devinquiry(char const *devname, time_t length, int num_rsp, 40578b96635SMaksim Yevmenkin struct bt_devinquiry **ii) 40678b96635SMaksim Yevmenkin { 40778b96635SMaksim Yevmenkin uint8_t buf[320]; 40878b96635SMaksim Yevmenkin char _devname[HCI_DEVNAME_SIZE]; 40978b96635SMaksim Yevmenkin struct bt_devfilter f; 41078b96635SMaksim Yevmenkin ng_hci_inquiry_cp *cp = (ng_hci_inquiry_cp *) buf; 41178b96635SMaksim Yevmenkin ng_hci_event_pkt_t *e = (ng_hci_event_pkt_t *) buf; 41278b96635SMaksim Yevmenkin ng_hci_inquiry_result_ep *ep = (ng_hci_inquiry_result_ep *)(e+1); 41378b96635SMaksim Yevmenkin ng_hci_inquiry_response *ir; 41478b96635SMaksim Yevmenkin struct bt_devinquiry *i; 41578b96635SMaksim Yevmenkin int s, n; 41678b96635SMaksim Yevmenkin 41778b96635SMaksim Yevmenkin if (ii == NULL) { 41878b96635SMaksim Yevmenkin errno = EINVAL; 41978b96635SMaksim Yevmenkin return (-1); 42078b96635SMaksim Yevmenkin } 42178b96635SMaksim Yevmenkin 42278b96635SMaksim Yevmenkin if (devname == NULL) { 42378b96635SMaksim Yevmenkin memset(_devname, 0, sizeof(_devname)); 42478b96635SMaksim Yevmenkin devname = _devname; 42578b96635SMaksim Yevmenkin 42678b96635SMaksim Yevmenkin n = bt_devenum(bt_devany_cb, _devname); 42778b96635SMaksim Yevmenkin if (n <= 0) { 42878b96635SMaksim Yevmenkin if (n == 0) 42978b96635SMaksim Yevmenkin *ii = NULL; 43078b96635SMaksim Yevmenkin 43178b96635SMaksim Yevmenkin return (n); 43278b96635SMaksim Yevmenkin } 43378b96635SMaksim Yevmenkin } 43478b96635SMaksim Yevmenkin 43578b96635SMaksim Yevmenkin s = bt_devopen(devname); 43678b96635SMaksim Yevmenkin if (s < 0) 43778b96635SMaksim Yevmenkin return (-1); 43878b96635SMaksim Yevmenkin 43978b96635SMaksim Yevmenkin if (bt_devfilter(s, NULL, &f) < 0) { 44078b96635SMaksim Yevmenkin bt_devclose(s); 44178b96635SMaksim Yevmenkin return (-1); 44278b96635SMaksim Yevmenkin } 44378b96635SMaksim Yevmenkin 44478b96635SMaksim Yevmenkin bt_devfilter_evt_set(&f, NG_HCI_EVENT_INQUIRY_COMPL); 44578b96635SMaksim Yevmenkin bt_devfilter_evt_set(&f, NG_HCI_EVENT_INQUIRY_RESULT); 44678b96635SMaksim Yevmenkin 44778b96635SMaksim Yevmenkin if (bt_devfilter(s, &f, NULL) < 0) { 44878b96635SMaksim Yevmenkin bt_devclose(s); 44978b96635SMaksim Yevmenkin return (-1); 45078b96635SMaksim Yevmenkin } 45178b96635SMaksim Yevmenkin 45278b96635SMaksim Yevmenkin /* Always use GIAC LAP */ 45378b96635SMaksim Yevmenkin cp->lap[0] = 0x33; 45478b96635SMaksim Yevmenkin cp->lap[1] = 0x8b; 45578b96635SMaksim Yevmenkin cp->lap[2] = 0x9e; 45678b96635SMaksim Yevmenkin 457b7ced94cSMaksim Yevmenkin /* 458b7ced94cSMaksim Yevmenkin * Calculate inquire length in 1.28 second units 459b7ced94cSMaksim Yevmenkin * v2.x specification says that 1.28 -> 61.44 seconds 460b7ced94cSMaksim Yevmenkin * range is acceptable 461b7ced94cSMaksim Yevmenkin */ 46278b96635SMaksim Yevmenkin 463b7ced94cSMaksim Yevmenkin if (length <= 0) 464b7ced94cSMaksim Yevmenkin length = 5; 465b7ced94cSMaksim Yevmenkin else if (length == 1) 466b7ced94cSMaksim Yevmenkin length = 2; 467b7ced94cSMaksim Yevmenkin else if (length > 62) 468b7ced94cSMaksim Yevmenkin length = 62; 469b7ced94cSMaksim Yevmenkin 470b7ced94cSMaksim Yevmenkin cp->inquiry_length = (uint8_t)((length * 100) / 128); 47178b96635SMaksim Yevmenkin 47278b96635SMaksim Yevmenkin if (num_rsp <= 0 || num_rsp > 255) 47378b96635SMaksim Yevmenkin num_rsp = 8; 47478b96635SMaksim Yevmenkin cp->num_responses = (uint8_t) num_rsp; 47578b96635SMaksim Yevmenkin 47678b96635SMaksim Yevmenkin i = *ii = calloc(num_rsp, sizeof(struct bt_devinquiry)); 47778b96635SMaksim Yevmenkin if (i == NULL) { 47878b96635SMaksim Yevmenkin bt_devclose(s); 47978b96635SMaksim Yevmenkin errno = ENOMEM; 48078b96635SMaksim Yevmenkin return (-1); 48178b96635SMaksim Yevmenkin } 48278b96635SMaksim Yevmenkin 48378b96635SMaksim Yevmenkin if (bt_devsend(s, 48478b96635SMaksim Yevmenkin NG_HCI_OPCODE(NG_HCI_OGF_LINK_CONTROL, NG_HCI_OCF_INQUIRY), 48578b96635SMaksim Yevmenkin cp, sizeof(*cp)) < 0) { 48678b96635SMaksim Yevmenkin free(i); 48778b96635SMaksim Yevmenkin bt_devclose(s); 48878b96635SMaksim Yevmenkin return (-1); 48978b96635SMaksim Yevmenkin } 49078b96635SMaksim Yevmenkin 49178b96635SMaksim Yevmenkin wait_for_more: 49278b96635SMaksim Yevmenkin 493b7ced94cSMaksim Yevmenkin n = bt_devrecv(s, buf, sizeof(buf), length); 49478b96635SMaksim Yevmenkin if (n < 0) { 49578b96635SMaksim Yevmenkin free(i); 49678b96635SMaksim Yevmenkin bt_devclose(s); 49778b96635SMaksim Yevmenkin return (-1); 49878b96635SMaksim Yevmenkin } 49978b96635SMaksim Yevmenkin 50078b96635SMaksim Yevmenkin if (n < sizeof(ng_hci_event_pkt_t)) { 50178b96635SMaksim Yevmenkin free(i); 50278b96635SMaksim Yevmenkin bt_devclose(s); 50378b96635SMaksim Yevmenkin errno = EIO; 50478b96635SMaksim Yevmenkin return (-1); 50578b96635SMaksim Yevmenkin } 50678b96635SMaksim Yevmenkin 50778b96635SMaksim Yevmenkin switch (e->event) { 50878b96635SMaksim Yevmenkin case NG_HCI_EVENT_INQUIRY_COMPL: 50978b96635SMaksim Yevmenkin break; 51078b96635SMaksim Yevmenkin 51178b96635SMaksim Yevmenkin case NG_HCI_EVENT_INQUIRY_RESULT: 51278b96635SMaksim Yevmenkin ir = (ng_hci_inquiry_response *)(ep + 1); 51378b96635SMaksim Yevmenkin 51478b96635SMaksim Yevmenkin for (n = 0; n < MIN(ep->num_responses, num_rsp); n ++) { 51578b96635SMaksim Yevmenkin bdaddr_copy(&i->bdaddr, &ir->bdaddr); 51678b96635SMaksim Yevmenkin i->pscan_rep_mode = ir->page_scan_rep_mode; 51778b96635SMaksim Yevmenkin i->pscan_period_mode = ir->page_scan_period_mode; 51878b96635SMaksim Yevmenkin memcpy(i->dev_class, ir->uclass, sizeof(i->dev_class)); 51978b96635SMaksim Yevmenkin i->clock_offset = le16toh(ir->clock_offset); 52078b96635SMaksim Yevmenkin 52178b96635SMaksim Yevmenkin ir ++; 52278b96635SMaksim Yevmenkin i ++; 52378b96635SMaksim Yevmenkin num_rsp --; 52478b96635SMaksim Yevmenkin } 52578b96635SMaksim Yevmenkin /* FALLTHROUGH */ 52678b96635SMaksim Yevmenkin 52778b96635SMaksim Yevmenkin default: 52878b96635SMaksim Yevmenkin goto wait_for_more; 52978b96635SMaksim Yevmenkin /* NOT REACHED */ 53078b96635SMaksim Yevmenkin } 53178b96635SMaksim Yevmenkin 53278b96635SMaksim Yevmenkin bt_devclose(s); 53378b96635SMaksim Yevmenkin 53478b96635SMaksim Yevmenkin return (i - *ii); 53578b96635SMaksim Yevmenkin } 53678b96635SMaksim Yevmenkin 53778b96635SMaksim Yevmenkin int 538baeef614SMaksim Yevmenkin bt_devinfo(struct bt_devinfo *di) 539baeef614SMaksim Yevmenkin { 540baeef614SMaksim Yevmenkin union { 541baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_state r0; 542baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_bdaddr r1; 543baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_features r2; 544baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_buffer r3; 545baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_stat r4; 546baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_link_policy_mask r5; 547baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_packet_mask r6; 548baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_role_switch r7; 549baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_debug r8; 550baeef614SMaksim Yevmenkin } rp; 551baeef614SMaksim Yevmenkin struct sockaddr_hci ha; 55278b96635SMaksim Yevmenkin socklen_t halen; 553baeef614SMaksim Yevmenkin int s, rval; 554baeef614SMaksim Yevmenkin 555baeef614SMaksim Yevmenkin if (di == NULL) { 556baeef614SMaksim Yevmenkin errno = EINVAL; 557baeef614SMaksim Yevmenkin return (-1); 558baeef614SMaksim Yevmenkin } 559baeef614SMaksim Yevmenkin 56078b96635SMaksim Yevmenkin s = bt_devopen(di->devname); 561baeef614SMaksim Yevmenkin if (s < 0) 562baeef614SMaksim Yevmenkin return (-1); 563baeef614SMaksim Yevmenkin 564baeef614SMaksim Yevmenkin rval = -1; 565baeef614SMaksim Yevmenkin 56678b96635SMaksim Yevmenkin halen = sizeof(ha); 56778b96635SMaksim Yevmenkin if (getsockname(s, (struct sockaddr *) &ha, &halen) < 0) 568baeef614SMaksim Yevmenkin goto bad; 569baeef614SMaksim Yevmenkin strlcpy(di->devname, ha.hci_node, sizeof(di->devname)); 570baeef614SMaksim Yevmenkin 571baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_STATE, &rp.r0, sizeof(rp.r0)) < 0) 572baeef614SMaksim Yevmenkin goto bad; 573baeef614SMaksim Yevmenkin di->state = rp.r0.state; 574baeef614SMaksim Yevmenkin 575baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_BDADDR, &rp.r1, sizeof(rp.r1)) < 0) 576baeef614SMaksim Yevmenkin goto bad; 577baeef614SMaksim Yevmenkin bdaddr_copy(&di->bdaddr, &rp.r1.bdaddr); 578baeef614SMaksim Yevmenkin 579baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_FEATURES, &rp.r2, sizeof(rp.r2)) < 0) 580baeef614SMaksim Yevmenkin goto bad; 581baeef614SMaksim Yevmenkin memcpy(di->features, rp.r2.features, sizeof(di->features)); 582baeef614SMaksim Yevmenkin 583baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_BUFFER, &rp.r3, sizeof(rp.r3)) < 0) 584baeef614SMaksim Yevmenkin goto bad; 585baeef614SMaksim Yevmenkin di->cmd_free = rp.r3.buffer.cmd_free; 586baeef614SMaksim Yevmenkin di->sco_size = rp.r3.buffer.sco_size; 587baeef614SMaksim Yevmenkin di->sco_pkts = rp.r3.buffer.sco_pkts; 588baeef614SMaksim Yevmenkin di->sco_free = rp.r3.buffer.sco_free; 589baeef614SMaksim Yevmenkin di->acl_size = rp.r3.buffer.acl_size; 590baeef614SMaksim Yevmenkin di->acl_pkts = rp.r3.buffer.acl_pkts; 591baeef614SMaksim Yevmenkin di->acl_free = rp.r3.buffer.acl_free; 592baeef614SMaksim Yevmenkin 593baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_STAT, &rp.r4, sizeof(rp.r4)) < 0) 594baeef614SMaksim Yevmenkin goto bad; 595baeef614SMaksim Yevmenkin di->cmd_sent = rp.r4.stat.cmd_sent; 596baeef614SMaksim Yevmenkin di->evnt_recv = rp.r4.stat.evnt_recv; 597baeef614SMaksim Yevmenkin di->acl_recv = rp.r4.stat.acl_recv; 598baeef614SMaksim Yevmenkin di->acl_sent = rp.r4.stat.acl_sent; 599baeef614SMaksim Yevmenkin di->sco_recv = rp.r4.stat.sco_recv; 600baeef614SMaksim Yevmenkin di->sco_sent = rp.r4.stat.sco_sent; 601baeef614SMaksim Yevmenkin di->bytes_recv = rp.r4.stat.bytes_recv; 602baeef614SMaksim Yevmenkin di->bytes_sent = rp.r4.stat.bytes_sent; 603baeef614SMaksim Yevmenkin 604baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK, 605baeef614SMaksim Yevmenkin &rp.r5, sizeof(rp.r5)) < 0) 606baeef614SMaksim Yevmenkin goto bad; 607baeef614SMaksim Yevmenkin di->link_policy_info = rp.r5.policy_mask; 608baeef614SMaksim Yevmenkin 609baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_PACKET_MASK, 610baeef614SMaksim Yevmenkin &rp.r6, sizeof(rp.r6)) < 0) 611baeef614SMaksim Yevmenkin goto bad; 612baeef614SMaksim Yevmenkin di->packet_type_info = rp.r6.packet_mask; 613baeef614SMaksim Yevmenkin 614baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_ROLE_SWITCH, 615baeef614SMaksim Yevmenkin &rp.r7, sizeof(rp.r7)) < 0) 616baeef614SMaksim Yevmenkin goto bad; 617baeef614SMaksim Yevmenkin di->role_switch_info = rp.r7.role_switch; 618baeef614SMaksim Yevmenkin 619baeef614SMaksim Yevmenkin if (ioctl(s, SIOC_HCI_RAW_NODE_GET_DEBUG, &rp.r8, sizeof(rp.r8)) < 0) 620baeef614SMaksim Yevmenkin goto bad; 621baeef614SMaksim Yevmenkin di->debug = rp.r8.debug; 622baeef614SMaksim Yevmenkin 623baeef614SMaksim Yevmenkin rval = 0; 624baeef614SMaksim Yevmenkin bad: 62578b96635SMaksim Yevmenkin bt_devclose(s); 626baeef614SMaksim Yevmenkin 627baeef614SMaksim Yevmenkin return (rval); 628baeef614SMaksim Yevmenkin } 629baeef614SMaksim Yevmenkin 630baeef614SMaksim Yevmenkin int 631baeef614SMaksim Yevmenkin bt_devenum(bt_devenum_cb_t cb, void *arg) 632baeef614SMaksim Yevmenkin { 633baeef614SMaksim Yevmenkin struct ng_btsocket_hci_raw_node_list_names rp; 634baeef614SMaksim Yevmenkin struct bt_devinfo di; 635baeef614SMaksim Yevmenkin struct sockaddr_hci ha; 636baeef614SMaksim Yevmenkin int s, i, count; 637baeef614SMaksim Yevmenkin 638baeef614SMaksim Yevmenkin rp.num_names = HCI_DEVMAX; 639baeef614SMaksim Yevmenkin rp.names = (struct nodeinfo *) calloc(rp.num_names, 640baeef614SMaksim Yevmenkin sizeof(struct nodeinfo)); 641baeef614SMaksim Yevmenkin if (rp.names == NULL) { 642baeef614SMaksim Yevmenkin errno = ENOMEM; 643baeef614SMaksim Yevmenkin return (-1); 644baeef614SMaksim Yevmenkin } 645baeef614SMaksim Yevmenkin 646baeef614SMaksim Yevmenkin memset(&ha, 0, sizeof(ha)); 647baeef614SMaksim Yevmenkin ha.hci_len = sizeof(ha); 648baeef614SMaksim Yevmenkin ha.hci_family = AF_BLUETOOTH; 649baeef614SMaksim Yevmenkin ha.hci_node[0] = 'x'; 650baeef614SMaksim Yevmenkin 651baeef614SMaksim Yevmenkin s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI); 652baeef614SMaksim Yevmenkin if (s < 0) { 653baeef614SMaksim Yevmenkin free(rp.names); 654baeef614SMaksim Yevmenkin 655baeef614SMaksim Yevmenkin return (-1); 656baeef614SMaksim Yevmenkin } 657baeef614SMaksim Yevmenkin 658baeef614SMaksim Yevmenkin if (bind(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 || 659baeef614SMaksim Yevmenkin connect(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 || 660baeef614SMaksim Yevmenkin ioctl(s, SIOC_HCI_RAW_NODE_LIST_NAMES, &rp, sizeof(rp)) < 0) { 661baeef614SMaksim Yevmenkin close(s); 662baeef614SMaksim Yevmenkin free(rp.names); 663baeef614SMaksim Yevmenkin 664baeef614SMaksim Yevmenkin return (-1); 665baeef614SMaksim Yevmenkin } 666baeef614SMaksim Yevmenkin 667baeef614SMaksim Yevmenkin for (count = 0, i = 0; i < rp.num_names; i ++) { 668baeef614SMaksim Yevmenkin strlcpy(di.devname, rp.names[i].name, sizeof(di.devname)); 669baeef614SMaksim Yevmenkin if (bt_devinfo(&di) < 0) 670baeef614SMaksim Yevmenkin continue; 671baeef614SMaksim Yevmenkin 672baeef614SMaksim Yevmenkin count ++; 673baeef614SMaksim Yevmenkin 674baeef614SMaksim Yevmenkin if (cb == NULL) 675baeef614SMaksim Yevmenkin continue; 676baeef614SMaksim Yevmenkin 677baeef614SMaksim Yevmenkin strlcpy(ha.hci_node, rp.names[i].name, sizeof(ha.hci_node)); 678baeef614SMaksim Yevmenkin if (bind(s, (struct sockaddr *) &ha, sizeof(ha)) < 0 || 679baeef614SMaksim Yevmenkin connect(s, (struct sockaddr *) &ha, sizeof(ha)) < 0) 680baeef614SMaksim Yevmenkin continue; 681baeef614SMaksim Yevmenkin 682baeef614SMaksim Yevmenkin if ((*cb)(s, &di, arg) > 0) 683baeef614SMaksim Yevmenkin break; 684baeef614SMaksim Yevmenkin } 685baeef614SMaksim Yevmenkin 686baeef614SMaksim Yevmenkin close (s); 687baeef614SMaksim Yevmenkin free(rp.names); 688baeef614SMaksim Yevmenkin 689baeef614SMaksim Yevmenkin return (count); 690baeef614SMaksim Yevmenkin } 691baeef614SMaksim Yevmenkin 69278b96635SMaksim Yevmenkin static int 69378b96635SMaksim Yevmenkin bt_devany_cb(int s, struct bt_devinfo const *di, void *xdevname) 69478b96635SMaksim Yevmenkin { 69578b96635SMaksim Yevmenkin strlcpy((char *) xdevname, di->devname, HCI_DEVNAME_SIZE); 69678b96635SMaksim Yevmenkin return (1); 69778b96635SMaksim Yevmenkin } 69878b96635SMaksim Yevmenkin 699baeef614SMaksim Yevmenkin static char * 700baeef614SMaksim Yevmenkin bt_dev2node(char const *devname, char *nodename, int nnlen) 701baeef614SMaksim Yevmenkin { 702baeef614SMaksim Yevmenkin static char const * bt_dev_prefix[] = { 703baeef614SMaksim Yevmenkin "btccc", /* 3Com Bluetooth PC-CARD */ 704baeef614SMaksim Yevmenkin "h4", /* UART/serial Bluetooth devices */ 705baeef614SMaksim Yevmenkin "ubt", /* Bluetooth USB devices */ 706baeef614SMaksim Yevmenkin NULL /* should be last */ 707baeef614SMaksim Yevmenkin }; 708baeef614SMaksim Yevmenkin 709baeef614SMaksim Yevmenkin static char _nodename[HCI_DEVNAME_SIZE]; 710baeef614SMaksim Yevmenkin char const **p; 711baeef614SMaksim Yevmenkin char *ep; 712baeef614SMaksim Yevmenkin int plen, unit; 713baeef614SMaksim Yevmenkin 714baeef614SMaksim Yevmenkin if (nodename == NULL) { 715baeef614SMaksim Yevmenkin nodename = _nodename; 716baeef614SMaksim Yevmenkin nnlen = HCI_DEVNAME_SIZE; 717baeef614SMaksim Yevmenkin } 718baeef614SMaksim Yevmenkin 719baeef614SMaksim Yevmenkin for (p = bt_dev_prefix; *p != NULL; p ++) { 720baeef614SMaksim Yevmenkin plen = strlen(*p); 721baeef614SMaksim Yevmenkin if (strncmp(devname, *p, plen) != 0) 722baeef614SMaksim Yevmenkin continue; 723baeef614SMaksim Yevmenkin 724baeef614SMaksim Yevmenkin unit = strtoul(devname + plen, &ep, 10); 725baeef614SMaksim Yevmenkin if (*ep != '\0' && 726baeef614SMaksim Yevmenkin strcmp(ep, "hci") != 0 && 727baeef614SMaksim Yevmenkin strcmp(ep, "l2cap") != 0) 728baeef614SMaksim Yevmenkin return (NULL); /* can't make sense of device name */ 729baeef614SMaksim Yevmenkin 730baeef614SMaksim Yevmenkin snprintf(nodename, nnlen, "%s%uhci", *p, unit); 731baeef614SMaksim Yevmenkin 732baeef614SMaksim Yevmenkin return (nodename); 733baeef614SMaksim Yevmenkin } 734baeef614SMaksim Yevmenkin 735baeef614SMaksim Yevmenkin return (NULL); 736baeef614SMaksim Yevmenkin } 737baeef614SMaksim Yevmenkin 738