diff options
Diffstat (limited to 'network/common.c')
| -rw-r--r-- | network/common.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/network/common.c b/network/common.c new file mode 100644 index 0000000..ef72679 --- /dev/null +++ b/network/common.c @@ -0,0 +1,262 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.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, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <sys/param.h> +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <sys/wait.h> +#include <net/if.h> +#include <linux/sockios.h> + +#include <bluetooth/bluetooth.h> +#include <bluetooth/l2cap.h> +#include <bluetooth/bnep.h> + +#include <glib.h> + +#include "log.h" +#include "common.h" + +static int ctl; + +static struct { + const char *name; /* Friendly name */ + const char *uuid128; /* UUID 128 */ + uint16_t id; /* Service class identifier */ +} __svc[] = { + { "panu", PANU_UUID, BNEP_SVC_PANU }, + { "gn", GN_UUID, BNEP_SVC_GN }, + { "nap", NAP_UUID, BNEP_SVC_NAP }, + { NULL } +}; + +uint16_t bnep_service_id(const char *svc) +{ + int i; + uint16_t id; + + /* Friendly service name */ + for (i = 0; __svc[i].name; i++) + if (!strcasecmp(svc, __svc[i].name)) { + return __svc[i].id; + } + + /* UUID 128 string */ + for (i = 0; __svc[i].uuid128; i++) + if (!strcasecmp(svc, __svc[i].uuid128)) { + return __svc[i].id; + } + + /* Try convert to HEX */ + id = strtol(svc, NULL, 16); + if ((id < BNEP_SVC_PANU) || (id > BNEP_SVC_GN)) + return 0; + + return id; +} + +const char *bnep_uuid(uint16_t id) +{ + int i; + + for (i = 0; __svc[i].uuid128; i++) + if (__svc[i].id == id) + return __svc[i].uuid128; + return NULL; +} + +const char *bnep_name(uint16_t id) +{ + int i; + + for (i = 0; __svc[i].name; i++) + if (__svc[i].id == id) + return __svc[i].name; + return NULL; +} + +int bnep_init(void) +{ + ctl = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_BNEP); + + if (ctl < 0) { + int err = errno; + error("Failed to open control socket: %s (%d)", + strerror(err), err); + return -err; + } + + return 0; +} + +int bnep_cleanup(void) +{ + close(ctl); + return 0; +} + +int bnep_kill_connection(bdaddr_t *dst) +{ + struct bnep_conndel_req req; + + memset(&req, 0, sizeof(req)); + baswap((bdaddr_t *)&req.dst, dst); + req.flags = 0; + if (ioctl(ctl, BNEPCONNDEL, &req)) { + int err = errno; + error("Failed to kill connection: %s (%d)", + strerror(err), err); + return -err; + } + return 0; +} + +int bnep_kill_all_connections(void) +{ + struct bnep_connlist_req req; + struct bnep_conninfo ci[7]; + unsigned int i; + int err; + + memset(&req, 0, sizeof(req)); + req.cnum = 7; + req.ci = ci; + if (ioctl(ctl, BNEPGETCONNLIST, &req)) { + err = errno; + error("Failed to get connection list: %s (%d)", + strerror(err), err); + return -err; + } + + for (i = 0; i < req.cnum; i++) { + struct bnep_conndel_req del; + + memset(&del, 0, sizeof(del)); + memcpy(del.dst, ci[i].dst, ETH_ALEN); + del.flags = 0; + ioctl(ctl, BNEPCONNDEL, &del); + } + return 0; +} + +int bnep_connadd(int sk, uint16_t role, char *dev) +{ + struct bnep_connadd_req req; + + memset(&req, 0, sizeof(req)); + strncpy(req.device, dev, 16); + req.device[15] = '\0'; + req.sock = sk; + req.role = role; + if (ioctl(ctl, BNEPCONNADD, &req) < 0) { + int err = errno; + error("Failed to add device %s: %s(%d)", + dev, strerror(err), err); + return -err; + } + + strncpy(dev, req.device, 16); + return 0; +} + +int bnep_if_up(const char *devname) +{ + struct ifreq ifr; + int sk, err; + + sk = socket(AF_INET, SOCK_DGRAM, 0); + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, devname, IF_NAMESIZE - 1); + + ifr.ifr_flags |= IFF_UP; + ifr.ifr_flags |= IFF_MULTICAST; + + err = ioctl(sk, SIOCSIFFLAGS, (caddr_t) &ifr); + + close(sk); + + if (err < 0) { + error("Could not bring up %s", devname); + return err; + } + + return 0; +} + +int bnep_if_down(const char *devname) +{ + struct ifreq ifr; + int sk, err; + + sk = socket(AF_INET, SOCK_DGRAM, 0); + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, devname, IF_NAMESIZE - 1); + + ifr.ifr_flags &= ~IFF_UP; + + /* Bring down the interface */ + err = ioctl(sk, SIOCSIFFLAGS, (caddr_t) &ifr); + + close(sk); + + return 0; +} + +int bnep_add_to_bridge(const char *devname, const char *bridge) +{ + int ifindex = if_nametoindex(devname); + struct ifreq ifr; + int sk, err; + + if (!devname || !bridge) + return -EINVAL; + + sk = socket(AF_INET, SOCK_STREAM, 0); + if (sk < 0) + return -1; + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, bridge, IFNAMSIZ - 1); + ifr.ifr_ifindex = ifindex; + + err = ioctl(sk, SIOCBRADDIF, &ifr); + + close(sk); + + if (err < 0) + return err; + + info("bridge %s: interface %s added", bridge, devname); + + return 0; +} |