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📁 ChmodBPF
📄 INSTALL.md(15.44 KB)
📄 LICENSE(868 B)
📄 Makefile-devel-adds(614 B)
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📄 README.md(3.71 KB)
📄 TODO(1.51 KB)
📄 VERSION(6 B)
📁 Win32
📄 aclocal.m4(30.92 KB)
📄 arcnet.h(2.39 KB)
📄 atmuni31.h(3.87 KB)
📄 bpf_dump.c(1.9 KB)
📄 bpf_filter.c(12.22 KB)
📄 bpf_image.c(7.38 KB)
📄 chmod_bpf(757 B)
📁 cmake
📄 cmake_uninstall.cmake.in(1.01 KB)
📄 cmakeconfig.h.in(11.15 KB)
📄 config.guess(43.17 KB)
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📄 config.sub(34.93 KB)
📄 configure(331.21 KB)
📄 configure.ac(64.36 KB)
📄 diag-control.h(8.3 KB)
📄 dlpisubs.c(9.41 KB)
📄 dlpisubs.h(702 B)
📁 doc
📄 etherent.c(3.43 KB)
📄 ethertype.h(3.47 KB)
📄 extract.h(9.23 KB)
📄 fad-getad.c(8.62 KB)
📄 fad-gifc.c(12.84 KB)
📄 fad-glifc.c(9.37 KB)
📄 fmtutils.c(6.35 KB)
📄 fmtutils.h(2.19 KB)
📄 ftmacros.h(4.22 KB)
📄 gencode.c(257 KB)
📄 gencode.h(11.44 KB)
📄 grammar.y(24.66 KB)
📄 ieee80211.h(5.25 KB)
📄 install-sh(5.45 KB)
📁 lbl
📄 libpcap.pc.in(484 B)
📄 llc.h(2.56 KB)
📁 missing
📄 mkdep(2.43 KB)
📁 msdos
📄 nametoaddr.c(18.83 KB)
📄 nametoaddr.h(2.12 KB)
📄 nlpid.h(1.66 KB)
📄 nomkdep(135 B)
📄 optimize.c(62.27 KB)
📄 optimize.h(1.29 KB)
📄 org.tcpdump.chmod_bpf.plist(441 B)
📁 pcap
📄 pcap-bpf.c(84.02 KB)
📄 pcap-bpf.h(2.24 KB)
📄 pcap-bt-linux.c(11.42 KB)
📄 pcap-bt-linux.h(1.76 KB)
📄 pcap-bt-monitor-linux.c(7.84 KB)
📄 pcap-bt-monitor-linux.h(1.64 KB)
📄 pcap-common.c(47.14 KB)
📄 pcap-common.h(2.29 KB)
📄 pcap-config.1(2.27 KB)
📄 pcap-config.in(1.8 KB)
📄 pcap-dag.c(37.15 KB)
📄 pcap-dag.h(457 B)
📄 pcap-dbus.c(10.03 KB)
📄 pcap-dbus.h(112 B)
📄 pcap-dll.rc(1.03 KB)
📄 pcap-dlpi.c(47.56 KB)
📄 pcap-dos.c(35.9 KB)
📄 pcap-dos.h(6.7 KB)
📄 pcap-enet.c(4.74 KB)
📄 pcap-filter.manmisc.in(33.54 KB)
📄 pcap-int.h(16.94 KB)
📄 pcap-libdlpi.c(12.11 KB)
📄 pcap-linktype.manmisc.in(2.33 KB)
📄 pcap-linux.c(207.89 KB)
📄 pcap-namedb.h(1.98 KB)
📄 pcap-netfilter-linux.c(20.48 KB)
📄 pcap-netfilter-linux.h(1.67 KB)
📄 pcap-netmap.c(7.82 KB)
📄 pcap-netmap.h(126 B)
📄 pcap-new.c(12.79 KB)
📄 pcap-nit.c(10.2 KB)
📄 pcap-npf.c(51.61 KB)
📄 pcap-null.c(1.9 KB)
📄 pcap-pf.c(18.48 KB)
📄 pcap-rdmasniff.c(10.98 KB)
📄 pcap-rdmasniff.h(140 B)
📄 pcap-rpcap-int.h(3.43 KB)
📄 pcap-rpcap.c(96.91 KB)
📄 pcap-rpcap.h(2.19 KB)
📄 pcap-savefile.manfile.in(5.11 KB)
📄 pcap-septel.c(8.69 KB)
📄 pcap-septel.h(512 B)
📄 pcap-sita.c(36.34 KB)
📄 pcap-sita.h(224 B)
📄 pcap-sita.html(37.43 KB)
📄 pcap-snf.c(14.75 KB)
📄 pcap-snf.h(110 B)
📄 pcap-snit.c(12.67 KB)
📄 pcap-snoop.c(13.26 KB)
📄 pcap-tc.c(34.21 KB)
📄 pcap-tc.h(1.9 KB)
📄 pcap-tstamp.manmisc.in(7.7 KB)
📄 pcap-types.h(1.93 KB)
📄 pcap-usb-linux.c(35.89 KB)
📄 pcap-usb-linux.h(1.75 KB)
📄 pcap.3pcap.in(29.62 KB)
📄 pcap.c(103.69 KB)
📄 pcap.h(2.17 KB)
📄 pcap_activate.3pcap(3.8 KB)
📄 pcap_breakloop.3pcap(3.98 KB)
📄 pcap_can_set_rfmon.3pcap(2.63 KB)
📄 pcap_close.3pcap(1.47 KB)
📄 pcap_compile.3pcap.in(3.02 KB)
📄 pcap_create.3pcap(2.19 KB)
📄 pcap_datalink.3pcap.in(2.39 KB)
📄 pcap_datalink_name_to_val.3pcap(1.82 KB)
📄 pcap_datalink_val_to_name.3pcap(2.47 KB)
📄 pcap_dump.3pcap(1.73 KB)
📄 pcap_dump_close.3pcap(1.49 KB)
📄 pcap_dump_file.3pcap(1.54 KB)
📄 pcap_dump_flush.3pcap(1.69 KB)
📄 pcap_dump_ftell.3pcap(2.11 KB)
📄 pcap_dump_open.3pcap.in(3.31 KB)
📄 pcap_file.3pcap(2.06 KB)
📄 pcap_fileno.3pcap(2 KB)
📄 pcap_findalldevs.3pcap(6.25 KB)
📄 pcap_freecode.3pcap(1.67 KB)
📄 pcap_get_required_select_timeout.3pcap(3.04 KB)
📄 pcap_get_selectable_fd.3pcap(4.66 KB)
📄 pcap_get_tstamp_precision.3pcap.in(1.83 KB)
📄 pcap_geterr.3pcap(1.84 KB)
📄 pcap_inject.3pcap(3.34 KB)
📄 pcap_is_swapped.3pcap(1.91 KB)
📄 pcap_lib_version.3pcap(1.6 KB)
📄 pcap_list_datalinks.3pcap.in(2.54 KB)
📄 pcap_list_tstamp_types.3pcap.in(2.98 KB)
📄 pcap_lookupdev.3pcap(2.47 KB)
📄 pcap_lookupnet.3pcap(1.95 KB)
📄 pcap_loop.3pcap(6.58 KB)
📄 pcap_major_version.3pcap(1.96 KB)
📄 pcap_next_ex.3pcap(4.86 KB)
📄 pcap_offline_filter.3pcap(1.95 KB)
📄 pcap_open_dead.3pcap.in(2.65 KB)
📄 pcap_open_live.3pcap(2.65 KB)
📄 pcap_open_offline.3pcap.in(3.8 KB)
📄 pcap_set_buffer_size.3pcap(1.79 KB)
📄 pcap_set_datalink.3pcap(1.84 KB)
📄 pcap_set_immediate_mode.3pcap.in(3.27 KB)
📄 pcap_set_promisc.3pcap(1.82 KB)
📄 pcap_set_protocol_linux.3pcap(2.81 KB)
📄 pcap_set_rfmon.3pcap(1.82 KB)
📄 pcap_set_snaplen.3pcap(1.74 KB)
📄 pcap_set_timeout.3pcap(2.15 KB)
📄 pcap_set_tstamp_precision.3pcap.in(2.38 KB)
📄 pcap_set_tstamp_type.3pcap.in(2.73 KB)
📄 pcap_setdirection.3pcap(2.36 KB)
📄 pcap_setfilter.3pcap(1.79 KB)
📄 pcap_setnonblock.3pcap(2.82 KB)
📄 pcap_snapshot.3pcap(1.91 KB)
📄 pcap_stats.3pcap(3.35 KB)
📄 pcap_statustostr.3pcap(1.55 KB)
📄 pcap_strerror.3pcap(1.54 KB)
📄 pcap_tstamp_type_name_to_val.3pcap(1.87 KB)
📄 pcap_tstamp_type_val_to_name.3pcap(1.99 KB)
📄 portability.h(5.46 KB)
📄 ppp.h(2.62 KB)
📄 rpcap-protocol.c(6.67 KB)
📄 rpcap-protocol.h(18.61 KB)
📁 rpcapd
📄 savefile.c(13.72 KB)
📄 scanner.l(14.36 KB)
📄 sf-pcap.c(30.33 KB)
📄 sf-pcap.h(1.69 KB)
📄 sf-pcapng.c(38.9 KB)
📄 sf-pcapng.h(1.41 KB)
📄 sockutils.c(52.26 KB)
📄 sockutils.h(5.22 KB)
📄 sunatmpos.h(2.09 KB)
📁 testprogs
📁 tests
📄 varattrs.h(2.38 KB)

Editing: pcap-bt-monitor-linux.c

/*
 * Copyright (c) 2014 Michal Labedzki for Tieto Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>

#include "pcap/bluetooth.h"
#include "pcap-int.h"

#include "pcap-bt-monitor-linux.h"

#define BT_CONTROL_SIZE 32
#define INTERFACE_NAME "bluetooth-monitor"

/*
 * Fields and alignment must match the declaration in the Linux kernel 3.4+.
 * See struct hci_mon_hdr in include/net/bluetooth/hci_mon.h.
 */
struct hci_mon_hdr {
    uint16_t opcode;
    uint16_t index;
    uint16_t len;
} __attribute__((packed));

int
bt_monitor_findalldevs(pcap_if_list_t *devlistp, char *err_str)
{
    int         ret = 0;

/*
     * Bluetooth is a wireless technology.
     *
     * This is a device to monitor all Bluetooth interfaces, so
     * there's no notion of "connected" or "disconnected", any
     * more than there's a notion of "connected" or "disconnected"
     * for the "any" device.
     */
    if (add_dev(devlistp, INTERFACE_NAME,
                PCAP_IF_WIRELESS|PCAP_IF_CONNECTION_STATUS_NOT_APPLICABLE,
                "Bluetooth Linux Monitor", err_str) == NULL)
    {
        ret = -1;
    }

return ret;
}

static int
bt_monitor_read(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_char *user)
{
    struct cmsghdr *cmsg;
    struct msghdr msg;
    struct iovec  iv[2];
    ssize_t ret;
    struct pcap_pkthdr pkth;
    pcap_bluetooth_linux_monitor_header *bthdr;
    u_char *pktd;
    struct hci_mon_hdr hdr;

pktd = (u_char *)handle->buffer + BT_CONTROL_SIZE;
    bthdr = (pcap_bluetooth_linux_monitor_header*)(void *)pktd;

iv[0].iov_base = &hdr;
    iv[0].iov_len = sizeof(hdr);
    iv[1].iov_base = pktd + sizeof(pcap_bluetooth_linux_monitor_header);
    iv[1].iov_len = handle->snapshot;

memset(&pkth.ts, 0, sizeof(pkth.ts));
    memset(&msg, 0, sizeof(msg));
    msg.msg_iov = iv;
    msg.msg_iovlen = 2;
    msg.msg_control = handle->buffer;
    msg.msg_controllen = BT_CONTROL_SIZE;

do {
        ret = recvmsg(handle->fd, &msg, 0);
        if (handle->break_loop)
        {
            handle->break_loop = 0;
            return -2;
        }
    } while ((ret == -1) && (errno == EINTR));

if (ret < 0) {
        pcap_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,
            errno, "Can't receive packet");
        return -1;
    }

pkth.caplen = ret - sizeof(hdr) + sizeof(pcap_bluetooth_linux_monitor_header);
    pkth.len = pkth.caplen;

for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
        if (cmsg->cmsg_level != SOL_SOCKET) continue;

if (cmsg->cmsg_type == SCM_TIMESTAMP) {
            memcpy(&pkth.ts, CMSG_DATA(cmsg), sizeof(pkth.ts));
        }
    }

bthdr->adapter_id = htons(hdr.index);
    bthdr->opcode = htons(hdr.opcode);

if (handle->fcode.bf_insns == NULL ||
        bpf_filter(handle->fcode.bf_insns, pktd, pkth.len, pkth.caplen)) {
        callback(user, &pkth, pktd);
        return 1;
    }
    return 0;   /* didn't pass filter */
}

static int
bt_monitor_inject(pcap_t *handle, const void *buf _U_, size_t size _U_)
{
    pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
        "Packet injection is not supported yet on Bluetooth monitor devices");
    return -1;
}

static int
bt_monitor_setdirection(pcap_t *p, pcap_direction_t d)
{
    p->direction = d;
    return 0;
}

static int
bt_monitor_stats(pcap_t *handle _U_, struct pcap_stat *stats)
{
    stats->ps_recv = 0;
    stats->ps_drop = 0;
    stats->ps_ifdrop = 0;

return 0;
}

static int
bt_monitor_activate(pcap_t* handle)
{
    struct sockaddr_hci addr;
    int err = PCAP_ERROR;
    int opt;

if (handle->opt.rfmon) {
        /* monitor mode doesn't apply here */
        return PCAP_ERROR_RFMON_NOTSUP;
    }

/*
     * Turn a negative snapshot value (invalid), a snapshot value of
     * 0 (unspecified), or a value bigger than the normal maximum
     * value, into the maximum allowed value.
     *
     * If some application really *needs* a bigger snapshot
     * length, we should just increase MAXIMUM_SNAPLEN.
     */
    if (handle->snapshot <= 0 || handle->snapshot > MAXIMUM_SNAPLEN)
        handle->snapshot = MAXIMUM_SNAPLEN;

handle->bufsize = BT_CONTROL_SIZE + sizeof(pcap_bluetooth_linux_monitor_header) + handle->snapshot;
    handle->linktype = DLT_BLUETOOTH_LINUX_MONITOR;

handle->read_op = bt_monitor_read;
    handle->inject_op = bt_monitor_inject;
    handle->setfilter_op = install_bpf_program; /* no kernel filtering */
    handle->setdirection_op = bt_monitor_setdirection;
    handle->set_datalink_op = NULL; /* can't change data link type */
    handle->getnonblock_op = pcap_getnonblock_fd;
    handle->setnonblock_op = pcap_setnonblock_fd;
    handle->stats_op = bt_monitor_stats;

handle->fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
    if (handle->fd < 0) {
        pcap_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,
            errno, "Can't create raw socket");
        return PCAP_ERROR;
    }

handle->buffer = malloc(handle->bufsize);
    if (!handle->buffer) {
        pcap_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,
            errno, "Can't allocate dump buffer");
        goto close_fail;
    }

/* Bind socket to the HCI device */
    addr.hci_family = AF_BLUETOOTH;
    addr.hci_dev = HCI_DEV_NONE;
    addr.hci_channel = HCI_CHANNEL_MONITOR;

if (bind(handle->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
        pcap_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,
            errno, "Can't attach to interface");
        goto close_fail;
    }

opt = 1;
    if (setsockopt(handle->fd, SOL_SOCKET, SO_TIMESTAMP, &opt, sizeof(opt)) < 0) {
        pcap_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,
            errno, "Can't enable time stamp");
        goto close_fail;
    }

handle->selectable_fd = handle->fd;

return 0;

close_fail:
    pcap_cleanup_live_common(handle);
    return err;
}

pcap_t *
bt_monitor_create(const char *device, char *ebuf, int *is_ours)
{
    pcap_t      *p;
    const char  *cp;

cp = strrchr(device, '/');
    if (cp == NULL)
        cp = device;

if (strcmp(cp, INTERFACE_NAME) != 0) {
        *is_ours = 0;
        return NULL;
    }

*is_ours = 1;
    p = pcap_create_common(ebuf, 0);
    if (p == NULL)
        return NULL;

p->activate_op = bt_monitor_activate;

return p;
}

003 File Manager

Editing: pcap-bt-monitor-linux.c

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