From 78a3c72f60646ab9a44eab94b3afa4652ddeb8db Mon Sep 17 00:00:00 2001 From: João Paulo Rechi Vita Date: Fri, 29 Aug 2008 20:22:14 -0300 Subject: Move bluetooth discover and device modules to src/modules/bluetooth --- src/modules/bluetooth/ipc.c | 119 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 src/modules/bluetooth/ipc.c (limited to 'src/modules/bluetooth/ipc.c') diff --git a/src/modules/bluetooth/ipc.c b/src/modules/bluetooth/ipc.c new file mode 100644 index 00000000..e7b712da --- /dev/null +++ b/src/modules/bluetooth/ipc.c @@ -0,0 +1,119 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2004-2008 Marcel Holtmann + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#include "ipc.h" + +/* This table contains the string representation for messages */ +static const char *strmsg[] = { + "BT_GETCAPABILITIES_REQ", + "BT_GETCAPABILITIES_RSP", + "BT_SETCONFIGURATION_REQ", + "BT_SETCONFIGURATION_RSP", + "BT_STREAMSTART_REQ", + "BT_STREAMSTART_RSP", + "BT_STREAMSTOP_REQ", + "BT_STREAMSTOP_RSP", + "BT_STREAMSUSPEND_IND", + "BT_STREAMRESUME_IND", + "BT_CONTROL_REQ", + "BT_CONTROL_RSP", + "BT_CONTROL_IND", + "BT_STREAMFD_IND", +}; + +int bt_audio_service_open() +{ + int sk; + int err; + struct sockaddr_un addr = { + AF_UNIX, BT_IPC_SOCKET_NAME + }; + + sk = socket(PF_LOCAL, SOCK_STREAM, 0); + if (sk < 0) { + err = errno; + fprintf(stderr, "%s: Cannot open socket: %s (%d)\n", + __FUNCTION__, strerror(err), err); + errno = err; + return -1; + } + + if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + err = errno; + fprintf(stderr, "%s: connect() failed: %s (%d)\n", + __FUNCTION__, strerror(err), err); + close(sk); + errno = err; + return -1; + } + + return sk; +} + +int bt_audio_service_close(int sk) +{ + return close(sk); +} + +int bt_audio_service_get_data_fd(int sk) +{ + char cmsg_b[CMSG_SPACE(sizeof(int))], m; + int err, ret; + struct iovec iov = { &m, sizeof(m) }; + struct msghdr msgh; + struct cmsghdr *cmsg; + + memset(&msgh, 0, sizeof(msgh)); + msgh.msg_iov = &iov; + msgh.msg_iovlen = 1; + msgh.msg_control = &cmsg_b; + msgh.msg_controllen = CMSG_LEN(sizeof(int)); + + ret = recvmsg(sk, &msgh, 0); + if (ret < 0) { + err = errno; + fprintf(stderr, "%s: Unable to receive fd: %s (%d)\n", + __FUNCTION__, strerror(err), err); + errno = err; + return -1; + } + + /* Receive auxiliary data in msgh */ + for (cmsg = CMSG_FIRSTHDR(&msgh); cmsg != NULL; + cmsg = CMSG_NXTHDR(&msgh, cmsg)) { + if (cmsg->cmsg_level == SOL_SOCKET + && cmsg->cmsg_type == SCM_RIGHTS) + return (*(int *) CMSG_DATA(cmsg)); + } + + errno = EINVAL; + return -1; +} + +const char *bt_audio_strmsg(int type) +{ + if (type < 0 || type > (sizeof(strmsg) / sizeof(strmsg[0]))) + return NULL; + + return strmsg[type]; +} + -- cgit