From 5ffa809f23953204b5666cb88080de9a52438fab Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Sun, 13 Oct 2013 13:17:19 -0700 Subject: [PATCH] tools: Add simple test utility for L2CAP connectionless channels --- .gitignore | 1 + Makefile.tools | 6 +- tools/cltest.c | 277 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 283 insertions(+), 1 deletion(-) create mode 100644 tools/cltest.c diff --git a/.gitignore b/.gitignore index d2253e592..e492c3fd3 100644 --- a/.gitignore +++ b/.gitignore @@ -52,6 +52,7 @@ tools/hid2hci tools/rfcomm tools/l2ping tools/l2test +tools/cltest tools/rctest tools/scotest tools/amptest diff --git a/Makefile.tools b/Makefile.tools index 76e77681e..87bb62e8d 100644 --- a/Makefile.tools +++ b/Makefile.tools @@ -174,7 +174,8 @@ noinst_PROGRAMS += tools/bdaddr tools/avinfo tools/avtest \ tools/scotest tools/amptest tools/hwdb \ tools/hcieventmask tools/hcisecfilter \ tools/btmgmt tools/btinfo tools/btattach \ - tools/btsnoop tools/btiotest tools/mpris-player + tools/btsnoop tools/btiotest tools/cltest \ + tools/mpris-player tools_bdaddr_SOURCES = tools/bdaddr.c src/oui.h src/oui.c tools_bdaddr_LDADD = lib/libbluetooth-internal.la @UDEV_LIBS@ @@ -208,6 +209,9 @@ tools_btiotest_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@ tools_mpris_player_SOURCES = tools/mpris-player.c tools_mpris_player_LDADD = gdbus/libgdbus-internal.la @GLIB_LIBS@ @DBUS_LIBS@ +tools_cltest_SOURCES = tools/cltest.c monitor/mainloop.h monitor/mainloop.c +tools_cltest_LDADD = lib/libbluetooth-internal.la + EXTRA_DIST += tools/bdaddr.1 endif diff --git a/tools/cltest.c b/tools/cltest.c new file mode 100644 index 000000000..16b7553bc --- /dev/null +++ b/tools/cltest.c @@ -0,0 +1,277 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2011-2012 Intel Corporation + * Copyright (C) 2004-2010 Marcel Holtmann + * + * + * 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 +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "monitor/mainloop.h" + +static bool send_message(const bdaddr_t *src, const bdaddr_t *dst, + uint16_t psm) +{ + const unsigned char buf[] = { 0x42, 0x23 }; + struct sockaddr_l2 addr; + ssize_t len; + int fd; + + fd = socket(PF_BLUETOOTH, SOCK_DGRAM | SOCK_CLOEXEC, BTPROTO_L2CAP); + if (fd < 0) { + perror("Failed to create transmitter socket"); + return false; + } + + memset(&addr, 0, sizeof(addr)); + addr.l2_family = AF_BLUETOOTH; + bacpy(&addr.l2_bdaddr, src); + + if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + perror("Failed to bind transmitter socket"); + close(fd); + return false; + } + + memset(&addr, 0, sizeof(addr)); + addr.l2_family = AF_BLUETOOTH; + bacpy(&addr.l2_bdaddr, dst); + addr.l2_psm = htobs(psm); + + if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + perror("Failed to connect transmitter socket"); + close(fd); + return false; + } + + len = send(fd, buf, sizeof(buf), 0); + if (len < 0) { + perror("Failed to send message"); + close(fd); + return false; + } + + return true; +} + +static void receiver_callback(int fd, uint32_t events, void *user_data) +{ + unsigned char buf[512]; + struct sockaddr_l2 addr; + socklen_t addrlen = sizeof(addr); + char str[18]; + ssize_t len, i; + + if (events & (EPOLLERR | EPOLLHUP)) { + close(fd); + mainloop_remove_fd(fd); + return; + } + + len = recvfrom(fd, buf, sizeof(buf), 0, + (struct sockaddr *) &addr, &addrlen); + if (len < 0) { + perror("Failed to receive data"); + return; + } + + if (addrlen > 0) { + ba2str(&addr.l2_bdaddr, str); + printf("RX Address: %s PSM: %d CID: %d\n", str, + btohs(addr.l2_psm), btohs(addr.l2_cid)); + } + + printf("RX Data:"); + for (i = 0; i < len; i++) + printf(" 0x%02x", buf[i]); + printf("\n"); +} + +static bool create_receiver(const bdaddr_t *bdaddr, uint16_t psm) +{ + struct sockaddr_l2 addr; + int fd; + + fd = socket(PF_BLUETOOTH, SOCK_DGRAM | SOCK_CLOEXEC, BTPROTO_L2CAP); + if (fd < 0) { + perror("Failed to create receiver socket"); + return false; + } + + memset(&addr, 0, sizeof(addr)); + addr.l2_family = AF_BLUETOOTH; + bacpy(&addr.l2_bdaddr, bdaddr); + addr.l2_psm = htobs(psm); + + if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + perror("Failed to bind receiver socket"); + close(fd); + return false; + } + + mainloop_add_fd(fd, EPOLLIN, receiver_callback, NULL, NULL); + + return true; +} + +static bool activate_controller(int fd, struct hci_dev_info *di) +{ + if (!hci_test_bit(HCI_UP, &di->flags)) { + char addr[18]; + + ba2str(&di->bdaddr, addr); + printf("Activating controller %s\n", addr); + + if (ioctl(fd, HCIDEVUP, di->dev_id) < 0) { + if (errno != EALREADY) { + perror("Failed to bring up HCI device"); + return false; + } + } + } + return true; +} + +static bool enable_connections(int fd, struct hci_dev_info *di) +{ + if (!hci_test_bit(HCI_PSCAN, &di->flags)) { + struct hci_dev_req dr; + char addr[18]; + + ba2str(&di->bdaddr, addr); + printf("Enabling connections on %s\n", addr); + + dr.dev_id = di->dev_id; + dr.dev_opt = SCAN_PAGE; + + if (ioctl(fd, HCISETSCAN, (unsigned long) &dr) < 0) { + perror("Failed to enable connections"); + return false; + } + } + return true; +} + +static bdaddr_t bdaddr_src; +static bdaddr_t bdaddr_dst; + +static bool find_controllers(void) +{ + struct hci_dev_list_req *dl; + struct hci_dev_req *dr; + bool result; + int fd, i; + + fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); + if (fd < 0) { + perror("Failed to open raw HCI socket"); + return false; + } + + dl = malloc(HCI_MAX_DEV * sizeof(struct hci_dev_req) + sizeof(uint16_t)); + if (!dl) { + perror("Failed allocate HCI device request memory"); + result = false; + goto done; + } + + dl->dev_num = HCI_MAX_DEV; + dr = dl->dev_req; + + if (ioctl(fd, HCIGETDEVLIST, (void *) dl) < 0) { + perror("Failed to get HCI device list"); + result = false; + goto done; + } + + result = true; + + for (i = 0; i< dl->dev_num && result; i++) { + struct hci_dev_info di; + + di.dev_id = (dr + i)->dev_id; + + if (ioctl(fd, HCIGETDEVINFO, (void *) &di) < 0) + continue; + + if (((di.type & 0x30) >> 4) != HCI_BREDR) + continue; + + if (!bacmp(&bdaddr_src, BDADDR_ANY)) { + bacpy(&bdaddr_src, &di.bdaddr); + result = activate_controller(fd, &di); + } else if (!bacmp(&bdaddr_dst, BDADDR_ANY)) { + bacpy(&bdaddr_dst, &di.bdaddr); + result = activate_controller(fd, &di); + if (result) + result = enable_connections(fd, &di); + } + } + +done: + close(fd); + return result; +} + +int main(int argc ,char *argv[]) +{ + char addr_src[18], addr_dst[18]; + + bacpy(&bdaddr_src, BDADDR_ANY); + bacpy(&bdaddr_dst, BDADDR_ANY); + + if (!find_controllers()) + return EXIT_FAILURE; + + if (!bacmp(&bdaddr_src, BDADDR_ANY) || + !bacmp(&bdaddr_dst, BDADDR_ANY)) { + fprintf(stderr, "Two controllers are required\n"); + return EXIT_FAILURE; + } + + ba2str(&bdaddr_src, addr_src); + ba2str(&bdaddr_dst, addr_dst); + + printf("%s -> %s\n", addr_src, addr_dst); + + mainloop_init(); + + create_receiver(&bdaddr_dst, 0x0021); + send_message(&bdaddr_src, &bdaddr_dst, 0x0021); + + return mainloop_run(); +} -- 2.11.0