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- Add 3rd party python libraries used by ioctl backend to tree and to setup.py
- Port several bug fixes from the trunk (removing reliance on shell for running external commands, unicode fixes, gui crash fixes, authentication validation improvements, several others)
- Fix some crashes in ioctl backend.
- Change daemon/GUI launch scripts to use the -O flag.
This commit is contained in:
imdano
2008-10-09 18:45:01 +00:00
parent 0eba051360
commit 9ee8bc1875
40 changed files with 3412 additions and 129 deletions
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339
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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PYTHON ?= python
SETUP := setup.py
build:
$(PYTHON) $(SETUP) $@
install:
ifdef DESTDIR
$(PYTHON) $(SETUP) $@ --root=$(DESTDIR)
else
$(PYTHON) $(SETUP) $@
endif
clean:
$(PYTHON) $(SETUP) $@
rm -rf build
.PHONY: build install clean

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python-wpactrl
--------------
A Python extension for wpa_supplicant/hostapd control interface access
Description
-----------
wpactrl defines a single class, WPACtrl, that must be instantiated
with the pathname of a UNIX domain socket control interface of a
wpa_supplicant/hostapd daemon.
Once a WPACtrl object has been instantiated, it may call several
helper methods to interact with the wpa_supplicant/hostapd daemon.
If an error occurs, a wpactrl.error exception is raised.
The destructor of a WPACtrl instance closes the connection to the
control interface socket.
Recommendations for the use of wpa_supplicant/hostapd control
interface access in external programs are at:
<http://w1.fi/wpa_supplicant/devel/ctrl_iface_page.html>
Installation
------------
make
make install
Two Makefile variables may be specified on the command line; PYTHON and
DESTDIR.
PYTHON - Python executable that should be called (eg. python2.5)
DESTDIR - Alternative root destination directory

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python-wpactrl (1.0.1-1) unstable; urgency=low
* Mark ctrl_iface_path and attached instance attributes as readonly.
-- Kel Modderman <kel@otaku42.de> Fri, 25 Apr 2008 13:17:03 +1000
python-wpactrl (1.0.0-1) unstable; urgency=low
* Major version 1.0.0, first release to the wild.
* Add/enhance doc strings for extension and all methods.
* Just return None for attach() and detach() methods, they can only fail
and raise error or succeed.
* Add Vcs fields to debian/control.
* Do not hardcode a python version in Makefile.
* Add DESTDIR support to Makefile.
* Use upstream Makefile in debian/rules instead of calling setup.py
directly.
* Fix lintian error in package debian/control long description by
capitalizing Python.
* Add entry for wpactrl.c in debian/copyright, adding original Authour's
name and copyright statement.
* Add a .PHONY entry to Makefile, so that 'build' can be called more than
once, for eg., multiple python versions.
* Add README file including description and installation blurbs.
* Add copyright/license information to example.py.
* Enhance the use of the attached WPACtrl struct member, explicitly checking
and setting its value.
* Don't allow an WPACtrl instance to attach() more than once, similarly only
allow the detach() method to do something if the instance previously
attach()'d.
* Remove the isattached() WPACtrl instance method.
* Remove embedded code example from wpactrl doc string.
* Expose the attached WPACtrl struct member as an instance data attribute.
-- Kel Modderman <kel@otaku42.de> Wed, 23 Apr 2008 13:44:28 +1000
python-wpactrl (0.10.0-2) unstable; urgency=low
* Update extended package description in debian/control.
* Add reference to upstream control interface specification to wpactrl.c
header.
-- Kel Modderman <kel@otaku42.de> Tue, 22 Apr 2008 10:20:45 +1000
python-wpactrl (0.10.0-1) unstable; urgency=low
* Add attached to wpactrl struct, to act as boolean when object as
registered as event monitor.
* Add attached() object method to return pythonic boolean based on state of
attached wpactrl struct member.
* Reorder the object method heirachy to match that of wpa_ctrl.h more
closely.
* Remove check for self->ctrl_iface in each object method, that condition
cannot be possible since object will raise an exception of
self->ctrl_iface could not be created at init.
* Adhere to the CapWords convention for the class name, renaming wpactrl
class to WPACtrl.
-- Kel Modderman <kel@otaku42.de> Mon, 21 Apr 2008 16:40:52 +1000
python-wpactrl (0.9.1-1) unstable; urgency=low
* Rename wpactrl_dealloc() object method to wpactrl_close().
* Add wpactrl_attach() and wpactrl_detach() object methods.
-- Kel Modderman <kel@otaku42.de> Mon, 21 Apr 2008 03:47:14 +1000
python-wpactrl (0.9.0-1) unstable; urgency=low
* Don't open two sockets for 2-way communication, one socket returned by
wpa_ctrl_open() is sufficient for sending and receiving.
* Don't include (and allocate memory for) the sendbuf and recvbuf wpactrl
struct members.
* Fix check of path string length, to make sure we are able to allocate
enough memory to accommodate it.
* Don't rely on python's PyArg_ParseTuple() to return length of argument in
wpactrl_request() method, just use strlen instead.
* Rename socket object member to ctrl_iface_path.
* Rename close() object method to detach().
* If wpactrl_reattach() method fails, allow exception to be raised rather
than returning false.
* Rename wpactrl_init() object method to wpactrl_open().
-- Kel Modderman <kel@otaku42.de> Mon, 21 Apr 2008 02:59:30 +1000
python-wpactrl (0.8.0-1) unstable; urgency=low
* Drop recevents method and helper function.
* Overhaul wpactrl_init, doing paranoid chanking that every allocation of
memory and so on is completed.
* free() send and recv buffers in wpactrl_close() to ensure we do not leak
memory should we choose to reattach().
-- Kel Modderman <kel@otaku42.de> Fri, 18 Apr 2008 22:52:54 +1000
python-wpactrl (0.7.1-1) unstable; urgency=low
* More code cleanups, rename wpactrlError to wpactrl_error for consistency.
* Shorten the version defines.
* Add wpactrl_members structure to provide access to path attribute of
wpactrl instances.
* Rename the path attribute to socket. Remove socket wpactrl method.
* Check if bss command returned a string starting with bssid rather than
testing string length, it could return UNKNOWN COMMAND or FAILED.
* Rename events method to recvevents, to be more descriptive about expected
action.
* Numerous trivial code beautifications.
* Bugfix output of example.py.
* Include a changelog in the tarball generated by "upstream-release".
* Check pathsize is less than allocated size.
-- Kel Modderman <kel@otaku42.de> Fri, 18 Apr 2008 16:47:03 +1000
python-wpactrl (0.7.0-1) unstable; urgency=low
* Make all methods lower case.
* Use wpactrl namespace instead of WPACtrl.
-- Kel Modderman <kel@otaku42.de> Thu, 17 Apr 2008 01:20:02 +1000
python-wpactrl (0.6.0-1) unstable; urgency=low
* Add -fno-strict-aliasing to compiler flags to silence noise with
python2.5.
* Global rename of 'buff' to 'buf'.
* Add Reattach() method, to reattach monitor to a wpa_ctrl path that was
previously attached by recycling the WPACtrl_init() function.
* Take better care of handling all possible return values for the
wpa_ctrl_*() functions.
* Recycle WPACtrl_Recv() when collecting a list of events for the
RecvPendingEvents() method.
* Readd the Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS keywords around
the wpa_ctrl_recv() in Recv() method, as the forked upstream seemed to
support threading at that point.
* Update example.py to show commands as they are executed, similar in
appearance to IDLE.
-- Kel Modderman <kel@otaku42.de> Thu, 17 Apr 2008 00:41:54 +1000
python-wpactrl (0.5.0-1) unstable; urgency=low
* Ensure send or recv socket is open before attempting to access it via one
of the WPACtrl object methods.
* Take care that the Recv() method is not blocking, return None if
wpa_ctrl_pending indicates we have nothing pending.
-- Kel Modderman <kel@otaku42.de> Fri, 11 Apr 2008 16:32:35 +1000
python-wpactrl (0.4.2-1) unstable; urgency=low
* Install example.py in examples directory.
* Retain SocketPath() method from original extension source.
-- Kel Modderman <kel@otaku42.de> Wed, 09 Apr 2008 21:30:13 +1000
python-wpactrl (0.4.1-1) unstable; urgency=low
* Return NULL when an exception is to be raised in ScanResults() method due
to failure of wpa_ctrl_request().
* Minor formatting cleanups.
* Remove ./build directory in debian/rules clean: target.
* Don't mark functions explicitly as inline, let the compiler make those
decisions.
* Enhance example.py to show of a few of wpactrl's methods, and to not
hardcode interface name for easier testing.
-- Kel Modderman <kel@otaku42.de> Tue, 08 Apr 2008 17:20:27 +1000
python-wpactrl (0.4.0-1) unstable; urgency=low
* Initial release.
-- Kel Modderman <kel@otaku42.de> Mon, 07 Apr 2008 23:27:14 +1000

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6

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Source: python-wpactrl
Section: python
Priority: optional
Build-Depends: debhelper (>= 6), python-all-dev (>= 2.3.5-11), python (>= 2.4), python-central (>= 0.5.6)
Maintainer: Kel Modderman <kel@otaku42.de>
XS-Python-Version: >=2.4
Standards-Version: 3.7.3
Vcs-Svn: http://svn.projects.otaku42.de/python-wpactrl/trunk/
Vcs-Browser: http://projects.otaku42.de/browser/python-wpactrl/trunk/
Package: python-wpactrl
Architecture: any
Depends: ${python:Depends}, ${shlibs:Depends}
Suggests: wpasupplicant, hostapd
Provides: ${python:Provides}
XB-Python-Version: ${python:Versions}
Description: A Python extension for wpa_supplicant/hostapd control interface access
wpa_supplicant/hostapd implements a control interface that can be used by
external programs to control the operations of the wpa_supplicant/hostapd
daemon and to get status information and event notifications. The WPACtrl
class provided by python-wpactrl allows Python programs to use helper
functions to connect with the UNIX domain socket form of control interface
and communicate with a wpa_supplicant/hostapd daemon.

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Files: *
Copyright: (c) 2008 Kel Modderman <kel@otaku42.de>
License: GPL-2
Files: wpactrl.c
Copyright: (c) 2008 Kel Modderman <kel@otaku42.de>
(c) 2006 Jeremy Moles <jeremy@emperorlinux.com>
License: GPL-2
Files: wpa_ctrl.*
Copyright: (c) 2004-2007, Jouni Malinen <j@w1.fi>
License: GPL-2 | BSD
On Debian GNU/Linux systems, the complete text of the GNU Lesser General
Public License can be found in `/usr/share/common-licenses/GPL-2'.

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example.py

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depends/python-wpactrl/debian/rules Executable file
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#!/usr/bin/make -f
# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1
PYVERS=$(shell pyversions -r debian/control)
build: build-stamp
build-stamp:
dh_testdir
for python in $(PYVERS); do \
$(MAKE) build PYTHON=$$python ; \
done
touch build-stamp
clean:
dh_testdir
for python in $(PYVERS); do \
$(MAKE) clean PYTHON=$$python ; \
done
dh_clean build-stamp
install: build
dh_testdir
dh_testroot
dh_clean -k
dh_installdirs
for python in $(PYVERS); do \
$(MAKE) install PYTHON=$$python DESTDIR=$(CURDIR)/debian/python-wpactrl ; \
done
binary-indep: build install
binary-arch: build install
dh_testdir
dh_testroot
dh_installdocs -a
dh_installexamples -a
dh_installchangelogs -a
dh_pycentral -a
dh_strip -a
dh_compress -a
dh_fixperms -a
dh_installdeb -a
dh_shlibdeps -a
dh_gencontrol -a
dh_md5sums -a
dh_builddeb -a
binary: binary-indep binary-arch
.PHONY: build clean binary-indep binary-arch binary
VERSION := $(shell dpkg-parsechangelog | sed -n 's/^Version:\s*\([0-9]\+:\)\?\([^\s-]\+\).*/\2/p')
TARBALL := $(CURDIR)/../python-wpactrl-$(VERSION).tar.gz
ORIGTGZ := $(CURDIR)/../tarballs/python-wpactrl_$(VERSION).orig.tar.gz
DIRTREE := $(shell basename $(CURDIR))
upstream-release:
$(RM) $(TARBALL) $(ORIGTGZ)
cp $(CURDIR)/debian/changelog $(CURDIR)/CHANGELOG
tar -czf $(TARBALL) --exclude='.svn' --exclude='debian' -C $(CURDIR)/../ $(DIRTREE)
install -D -m 0644 $(TARBALL) $(ORIGTGZ)
$(RM) $(CURDIR)/CHANGELOG

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#!/usr/bin/python
'''Example usage of the wpactrl extension.'''
__author__ = 'Kel Modderman'
__copyright__ = '(c) 2008 Kel Modderman <kel@otaku42.de>'
__license__ = 'GPLv2'
import os
import sys
import time
import wpactrl
run = '/var/run/wpa_supplicant'
if __name__ == "__main__":
print '>>> wpactrl version %d.%d.%d ...' % wpactrl.version()
sockets = []
if os.path.isdir(run):
try:
sockets = [os.path.join(run, i) for i in os.listdir(run)]
except OSError, error:
print 'Error:', error
sys.exit(1)
if len(sockets) < 1:
print 'No wpa_ctrl sockets found in %s, aborting.' % run
sys.exit(1)
for s in sockets:
try:
print '>>> # Open a ctrl_iface connection'
print '>>> wpa = wpactrl.WPACtrl("%s")' % s
wpa = wpactrl.WPACtrl(s)
print '>>> # Location of ctrl_iface socket'
print '>>> wpa.ctrl_iface_path'
print wpa.ctrl_iface_path
print '>>> # Request a few commands'
print '>>> wpa.request("PING")'
print wpa.request('PING')
print '>>> wpa.request("STATUS")'
print wpa.request('STATUS')
print '>>> wpa.request("LIST_NETWORKS")'
print wpa.request('LIST_NETWORKS')
time.sleep(1)
print '>>> # Open a new ctrl_iface connection for receiving event'
print '>>> # messages'
print '>>> wpa_event = wpactrl.WPACtrl("%s")' % s
wpa_event = wpactrl.WPACtrl(s)
print '>>> wpa_event.attached'
print wpa_event.attached
print '>>> wpa_event.attach()'
wpa_event.attach()
print '>>> wpa_event.attached'
print wpa_event.attached
print '>>> # Request commands via original ctrl_iface connection'
print '>>> wpa.request("SCAN")'
print wpa.request('SCAN')
time.sleep(1)
print '>>> wpa.request("STATUS")'
print wpa.request('STATUS')
print '>>> # Waiting 10s for pending events ...'
time.sleep(10)
print '>>> # Check for pending events and collect them'
print '>>> while wpa_event.pending():'
print '>>> ....wpa_event.recv()'
while wpa_event.pending():
print wpa_event.recv()
print '>>> # Request scan results (wpa_supplicant only)'
print '>>> results = wpa.scanresults()'
print '>>> for no, bss in enumerate(results):'
print '>>> ....print \'bss(%d):\' % no'
print '>>> ....print bss'
results = wpa.scanresults()
for no, bss in enumerate(results):
print 'bss(%d):' % no
print bss
print '>>> # Detach the event monitor'
print '>>> wpa_event.detach()'
wpa_event.detach()
print '>>> # Finished!'
except wpactrl.error, error:
print 'Error:', error
pass

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#!/usr/bin/python
'''Setup script for the wpactrl extension.'''
import distutils
from distutils.core import setup
from distutils.extension import Extension
ext = Extension(name = 'wpactrl', sources = ['wpa_ctrl.c', 'wpactrl.c'],
extra_compile_args = ["-fno-strict-aliasing"])
setup(name = 'wpactrl', ext_modules = [ext],
description = 'Python bindings for wpa_supplicant/hostapd ctrl socket.')

256
depends/python-wpactrl/wpa_ctrl.c Normal file
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/*
* Modifed version of src/common/wpa_ctrl.c from wpa_supplicant, discarding
* all code paths except for CONFIG_CTRL_IFACE_UNIX. Define strlcpy inline,
* it is not provided by GNU libc.
* Copyright (c) 2008, Kel Modderman <kel@otaku42.de>
*
* wpa_supplicant/hostapd control interface library
* Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/un.h>
#include "wpa_ctrl.h"
/**
* strlcpy - Copy a string with size bound and NUL-termination
* @dest: Destination
* @src: Source
* @siz: Size of the target buffer
* Returns: Total length of the target string (length of src) (not including
* NUL-termination)
*
* This function matches in behavior with the strlcpy(3) function in OpenBSD.
*/
size_t strlcpy(char *dest, const char *src, size_t siz)
{
const char *s = src;
size_t left = siz;
if (left) {
/* Copy string up to the maximum size of the dest buffer */
while (--left != 0) {
if ((*dest++ = *s++) == '\0')
break;
}
}
if (left == 0) {
/* Not enough room for the string; force NUL-termination */
if (siz != 0)
*dest = '\0';
while (*s++)
; /* determine total src string length */
}
return s - src - 1;
}
/**
* struct wpa_ctrl - Internal structure for control interface library
*
* This structure is used by the wpa_supplicant/hostapd control interface
* library to store internal data. Programs using the library should not touch
* this data directly. They can only use the pointer to the data structure as
* an identifier for the control interface connection and use this as one of
* the arguments for most of the control interface library functions.
*/
struct wpa_ctrl {
int s;
struct sockaddr_un local;
struct sockaddr_un dest;
};
struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path)
{
struct wpa_ctrl *ctrl;
static int counter = 0;
int ret;
size_t res;
ctrl = malloc(sizeof(*ctrl));
if (ctrl == NULL)
return NULL;
memset(ctrl, 0, sizeof(*ctrl));
ctrl->s = socket(PF_UNIX, SOCK_DGRAM, 0);
if (ctrl->s < 0) {
free(ctrl);
return NULL;
}
ctrl->local.sun_family = AF_UNIX;
ret = snprintf(ctrl->local.sun_path, sizeof(ctrl->local.sun_path),
"/tmp/wpa_ctrl_%d-%d", getpid(), counter++);
if (ret < 0 || (size_t) ret >= sizeof(ctrl->local.sun_path)) {
close(ctrl->s);
free(ctrl);
return NULL;
}
if (bind(ctrl->s, (struct sockaddr *) &ctrl->local,
sizeof(ctrl->local)) < 0) {
close(ctrl->s);
free(ctrl);
return NULL;
}
ctrl->dest.sun_family = AF_UNIX;
res = strlcpy(ctrl->dest.sun_path, ctrl_path,
sizeof(ctrl->dest.sun_path));
if (res >= sizeof(ctrl->dest.sun_path)) {
close(ctrl->s);
free(ctrl);
return NULL;
}
if (connect(ctrl->s, (struct sockaddr *) &ctrl->dest,
sizeof(ctrl->dest)) < 0) {
close(ctrl->s);
unlink(ctrl->local.sun_path);
free(ctrl);
return NULL;
}
return ctrl;
}
void wpa_ctrl_close(struct wpa_ctrl *ctrl)
{
unlink(ctrl->local.sun_path);
close(ctrl->s);
free(ctrl);
}
int wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len,
char *reply, size_t *reply_len,
void (*msg_cb)(char *msg, size_t len))
{
struct timeval tv;
int res;
fd_set rfds;
const char *_cmd;
char *cmd_buf = NULL;
size_t _cmd_len;
{
_cmd = cmd;
_cmd_len = cmd_len;
}
if (send(ctrl->s, _cmd, _cmd_len, 0) < 0) {
free(cmd_buf);
return -1;
}
free(cmd_buf);
for (;;) {
tv.tv_sec = 2;
tv.tv_usec = 0;
FD_ZERO(&rfds);
FD_SET(ctrl->s, &rfds);
res = select(ctrl->s + 1, &rfds, NULL, NULL, &tv);
if (FD_ISSET(ctrl->s, &rfds)) {
res = recv(ctrl->s, reply, *reply_len, 0);
if (res < 0)
return res;
if (res > 0 && reply[0] == '<') {
/* This is an unsolicited message from
* wpa_supplicant, not the reply to the
* request. Use msg_cb to report this to the
* caller. */
if (msg_cb) {
/* Make sure the message is nul
* terminated. */
if ((size_t) res == *reply_len)
res = (*reply_len) - 1;
reply[res] = '\0';
msg_cb(reply, res);
}
continue;
}
*reply_len = res;
break;
} else {
return -2;
}
}
return 0;
}
static int wpa_ctrl_attach_helper(struct wpa_ctrl *ctrl, int attach)
{
char buf[10];
int ret;
size_t len = 10;
ret = wpa_ctrl_request(ctrl, attach ? "ATTACH" : "DETACH", 6,
buf, &len, NULL);
if (ret < 0)
return ret;
if (len == 3 && memcmp(buf, "OK\n", 3) == 0)
return 0;
return -1;
}
int wpa_ctrl_attach(struct wpa_ctrl *ctrl)
{
return wpa_ctrl_attach_helper(ctrl, 1);
}
int wpa_ctrl_detach(struct wpa_ctrl *ctrl)
{
return wpa_ctrl_attach_helper(ctrl, 0);
}
int wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len)
{
int res;
res = recv(ctrl->s, reply, *reply_len, 0);
if (res < 0)
return res;
*reply_len = res;
return 0;
}
int wpa_ctrl_pending(struct wpa_ctrl *ctrl)
{
struct timeval tv;
fd_set rfds;
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO(&rfds);
FD_SET(ctrl->s, &rfds);
select(ctrl->s + 1, &rfds, NULL, NULL, &tv);
return FD_ISSET(ctrl->s, &rfds);
}
int wpa_ctrl_get_fd(struct wpa_ctrl *ctrl)
{
return ctrl->s;
}

187
depends/python-wpactrl/wpa_ctrl.h Normal file
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/*
* Unmodifed version of src/common/wpa_ctrl.h from wpa_supplicant.
*
* wpa_supplicant/hostapd control interface library
* Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*/
#ifndef WPA_CTRL_H
#define WPA_CTRL_H
#ifdef __cplusplus
extern "C" {
#endif
/* wpa_supplicant control interface - fixed message prefixes */
/** Interactive request for identity/password/pin */
#define WPA_CTRL_REQ "CTRL-REQ-"
/** Response to identity/password/pin request */
#define WPA_CTRL_RSP "CTRL-RSP-"
/* Event messages with fixed prefix */
/** Authentication completed successfully and data connection enabled */
#define WPA_EVENT_CONNECTED "CTRL-EVENT-CONNECTED "
/** Disconnected, data connection is not available */
#define WPA_EVENT_DISCONNECTED "CTRL-EVENT-DISCONNECTED "
/** wpa_supplicant is exiting */
#define WPA_EVENT_TERMINATING "CTRL-EVENT-TERMINATING "
/** Password change was completed successfully */
#define WPA_EVENT_PASSWORD_CHANGED "CTRL-EVENT-PASSWORD-CHANGED "
/** EAP-Request/Notification received */
#define WPA_EVENT_EAP_NOTIFICATION "CTRL-EVENT-EAP-NOTIFICATION "
/** EAP authentication started (EAP-Request/Identity received) */
#define WPA_EVENT_EAP_STARTED "CTRL-EVENT-EAP-STARTED "
/** EAP method selected */
#define WPA_EVENT_EAP_METHOD "CTRL-EVENT-EAP-METHOD "
/** EAP authentication completed successfully */
#define WPA_EVENT_EAP_SUCCESS "CTRL-EVENT-EAP-SUCCESS "
/** EAP authentication failed (EAP-Failure received) */
#define WPA_EVENT_EAP_FAILURE "CTRL-EVENT-EAP-FAILURE "
/** New scan results available */
#define WPA_EVENT_SCAN_RESULTS "CTRL-EVENT-SCAN-RESULTS "
/* wpa_supplicant/hostapd control interface access */
/**
* wpa_ctrl_open - Open a control interface to wpa_supplicant/hostapd
* @ctrl_path: Path for UNIX domain sockets; ignored if UDP sockets are used.
* Returns: Pointer to abstract control interface data or %NULL on failure
*
* This function is used to open a control interface to wpa_supplicant/hostapd.
* ctrl_path is usually /var/run/wpa_supplicant or /var/run/hostapd. This path
* is configured in wpa_supplicant/hostapd and other programs using the control
* interface need to use matching path configuration.
*/
struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path);
/**
* wpa_ctrl_close - Close a control interface to wpa_supplicant/hostapd
* @ctrl: Control interface data from wpa_ctrl_open()
*
* This function is used to close a control interface.
*/
void wpa_ctrl_close(struct wpa_ctrl *ctrl);
/**
* wpa_ctrl_request - Send a command to wpa_supplicant/hostapd
* @ctrl: Control interface data from wpa_ctrl_open()
* @cmd: Command; usually, ASCII text, e.g., "PING"
* @cmd_len: Length of the cmd in bytes
* @reply: Buffer for the response
* @reply_len: Reply buffer length
* @msg_cb: Callback function for unsolicited messages or %NULL if not used
* Returns: 0 on success, -1 on error (send or receive failed), -2 on timeout
*
* This function is used to send commands to wpa_supplicant/hostapd. Received
* response will be written to reply and reply_len is set to the actual length
* of the reply. This function will block for up to two seconds while waiting
* for the reply. If unsolicited messages are received, the blocking time may
* be longer.
*
* msg_cb can be used to register a callback function that will be called for
* unsolicited messages received while waiting for the command response. These
* messages may be received if wpa_ctrl_request() is called at the same time as
* wpa_supplicant/hostapd is sending such a message. This can happen only if
* the program has used wpa_ctrl_attach() to register itself as a monitor for
* event messages. Alternatively to msg_cb, programs can register two control
* interface connections and use one of them for commands and the other one for
* receiving event messages, in other words, call wpa_ctrl_attach() only for
* the control interface connection that will be used for event messages.
*/
int wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len,
char *reply, size_t *reply_len,
void (*msg_cb)(char *msg, size_t len));
/**
* wpa_ctrl_attach - Register as an event monitor for the control interface
* @ctrl: Control interface data from wpa_ctrl_open()
* Returns: 0 on success, -1 on failure, -2 on timeout
*
* This function registers the control interface connection as a monitor for
* wpa_supplicant/hostapd events. After a success wpa_ctrl_attach() call, the
* control interface connection starts receiving event messages that can be
* read with wpa_ctrl_recv().
*/
int wpa_ctrl_attach(struct wpa_ctrl *ctrl);
/**
* wpa_ctrl_detach - Unregister event monitor from the control interface
* @ctrl: Control interface data from wpa_ctrl_open()
* Returns: 0 on success, -1 on failure, -2 on timeout
*
* This function unregisters the control interface connection as a monitor for
* wpa_supplicant/hostapd events, i.e., cancels the registration done with
* wpa_ctrl_attach().
*/
int wpa_ctrl_detach(struct wpa_ctrl *ctrl);
/**
* wpa_ctrl_recv - Receive a pending control interface message
* @ctrl: Control interface data from wpa_ctrl_open()
* @reply: Buffer for the message data
* @reply_len: Length of the reply buffer
* Returns: 0 on success, -1 on failure
*
* This function will receive a pending control interface message. This
* function will block if no messages are available. The received response will
* be written to reply and reply_len is set to the actual length of the reply.
* wpa_ctrl_recv() is only used for event messages, i.e., wpa_ctrl_attach()
* must have been used to register the control interface as an event monitor.
*/
int wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len);
/**
* wpa_ctrl_pending - Check whether there are pending event messages
* @ctrl: Control interface data from wpa_ctrl_open()
* Returns: 1 if there are pending messages, 0 if no, or -1 on error
*
* This function will check whether there are any pending control interface
* message available to be received with wpa_ctrl_recv(). wpa_ctrl_pending() is
* only used for event messages, i.e., wpa_ctrl_attach() must have been used to
* register the control interface as an event monitor.
*/
int wpa_ctrl_pending(struct wpa_ctrl *ctrl);
/**
* wpa_ctrl_get_fd - Get file descriptor used by the control interface
* @ctrl: Control interface data from wpa_ctrl_open()
* Returns: File descriptor used for the connection
*
* This function can be used to get the file descriptor that is used for the
* control interface connection. The returned value can be used, e.g., with
* select() while waiting for multiple events.
*
* The returned file descriptor must not be used directly for sending or
* receiving packets; instead, the library functions wpa_ctrl_request() and
* wpa_ctrl_recv() must be used for this.
*/
int wpa_ctrl_get_fd(struct wpa_ctrl *ctrl);
#ifdef CONFIG_CTRL_IFACE_UDP
#define WPA_CTRL_IFACE_PORT 9877
#define WPA_GLOBAL_CTRL_IFACE_PORT 9878
#endif /* CONFIG_CTRL_IFACE_UDP */
#ifdef __cplusplus
}
#endif
#endif /* WPA_CTRL_H */

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depends/python-wpactrl/wpactrl.c Normal file
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/*
* python-wpactrl
* --------------
* A Python extension for wpa_supplicant/hostapd control interface access
*
* Copyright (c) 2008 Kel Modderman <kel@otaku42.de>
* License: GPL v2
*
* This is based on (a fork of) pywpa:
* http://downloads.emperorlinux.com/contrib/pywpa/
* Copyright (c) 2006 Jeremy Moles <jeremy@emperorlinux.com>
* License: LGPL v2.1
*
*/
#include <Python.h>
#include <structmember.h>
#include <osdefs.h>
#include "wpa_ctrl.h"
#define WPACTRL_MAJ_VER 1
#define WPACTRL_MIN_VER 0
#define WPACTRL_MIC_VER 1
#define UNUSED __attribute__ (( __unused__ ))
/* ------------------------------------------------------------------------------------- WPACtrl */
typedef struct {
PyObject_HEAD
struct wpa_ctrl* ctrl_iface;
char* ctrl_iface_path;
int attached;
} WPACtrl;
/* -------------------------------------------------------------------------Function Definitions */
static PyObject* wpactrl_version(PyObject*, PyObject*);
static int WPACtrl_open(WPACtrl*, PyObject*, PyObject*);
static PyObject* WPACtrl_request(WPACtrl*, PyObject*, PyObject*);
static PyObject* WPACtrl_attach(WPACtrl*);
static PyObject* WPACtrl_detach(WPACtrl*);
static PyObject* WPACtrl_pending(WPACtrl*);
static PyObject* WPACtrl_recv(WPACtrl*);
static PyObject* WPACtrl_scanresults(WPACtrl*);
static void WPACtrl_close(WPACtrl*);
static PyObject* WPACtrl_error;
/* -------------------------------------------------------------------------- WPACTRL_DOC_STRING */
static char* WPACTRL_DOC_STRING =
"wpactrl defines a single class, WPACtrl, that must be instantiated\n"
"with the pathname of a UNIX domain socket control interface of a\n"
"wpa_supplicant/hostapd daemon.\n"
"\n"
"Once a WPACtrl object has been instantiated, it may call several\n"
"helper methods to interact with the wpa_supplicant/hostapd daemon.\n"
"If an error occurs, a wpactrl.error exception is raised.\n"
"\n"
"The destructor of a WPACtrl instance closes the connection to the\n"
"control interface socket.\n"
"\n"
"Recommendations for the use of wpa_supplicant/hostapd control\n"
"interface access in external programs are at:\n"
" <http://w1.fi/wpa_supplicant/devel/ctrl_iface_page.html>\n"
;
/* ----------------------------------------------------------------------------- wpactrl_version */
static PyObject* wpactrl_version(UNUSED PyObject* u1, UNUSED PyObject* u2)
{
return Py_BuildValue("(iii)", WPACTRL_MAJ_VER, WPACTRL_MIN_VER, WPACTRL_MIC_VER);
}
/* -------------------------------------------------------------------------------- WPACtrl_open */
static int WPACtrl_open(WPACtrl* self, PyObject* args, UNUSED PyObject* kargs)
{
char* path;
if (!PyArg_ParseTuple(args, "s", &path)) {
PyErr_SetString(WPACtrl_error, "failed to parse ctrl_iface_path string");
return -1;
}
if (strlen(path) >= MAXPATHLEN) {
PyErr_SetString(WPACtrl_error, "ctrl_iface_path string length too long");
return -1;
}
self->ctrl_iface_path = malloc(MAXPATHLEN);
if (!self->ctrl_iface_path) {
PyErr_SetString(WPACtrl_error, "failed to allocate memory for ctrl_iface_path");
return -1;
}
strcpy(self->ctrl_iface_path, path);
self->ctrl_iface = wpa_ctrl_open(self->ctrl_iface_path);
if (!self->ctrl_iface) {
PyErr_SetString(WPACtrl_error, "wpa_ctrl_open failed");
return -1;
}
self->attached = 0;
return 0;
}
/* ----------------------------------------------------------------------------- WPACtrl_request */
static PyObject* WPACtrl_request(WPACtrl* self, PyObject* args, UNUSED PyObject* kargs)
{
int ret;
char* cmd;
char buf[2048];
size_t buflen = sizeof(buf) - 1;
if (!PyArg_ParseTuple(args, "s", &cmd)) {
PyErr_SetString(WPACtrl_error, "failed to parse request command string");
return NULL;
}
ret = wpa_ctrl_request(self->ctrl_iface, cmd, strlen(cmd), buf, &buflen, NULL);
switch (ret) {
case 0:
buf[buflen] = '\0';
return Py_BuildValue("s", buf);
case -1:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_request failed");
break;
case -2:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_request timed out");
break;
default:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_request returned unknown error");
break;
}
return NULL;
}
/* ------------------------------------------------------------------------------ WPACtrl_attach */
static PyObject* WPACtrl_attach(WPACtrl* self)
{
int ret;
if (self->attached == 1)
Py_RETURN_NONE;
ret = wpa_ctrl_attach(self->ctrl_iface);
switch (ret) {
case 0:
self->attached = 1;
Py_RETURN_NONE;
case -1:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_attach failed");
break;
case -2:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_attach timed out");
break;
default:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_attach returned unknown error");
break;
}
return NULL;
}
/* ------------------------------------------------------------------------------ WPACtrl_detach */
static PyObject* WPACtrl_detach(WPACtrl* self)
{
int ret;
if (self->attached == 0)
Py_RETURN_NONE;
ret = wpa_ctrl_detach(self->ctrl_iface);
switch (ret) {
case 0:
self->attached = 0;
Py_RETURN_NONE;
case -1:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_detach failed");
break;
case -2:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_detach timed out");
break;
default:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_detach returned unknown error");
break;
}
return NULL;
}
/* ----------------------------------------------------------------------------- WPACtrl_pending */
static PyObject* WPACtrl_pending(WPACtrl* self)
{
int ret;
ret = wpa_ctrl_pending(self->ctrl_iface);
switch (ret) {
case 1:
Py_RETURN_TRUE;
case 0:
Py_RETURN_FALSE;
case -1:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_pending failed");
break;
default:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_pending returned unknown error");
break;
}
return NULL;
}
/* -------------------------------------------------------------------------------- WPACtrl_recv */
static PyObject* WPACtrl_recv(WPACtrl* self)
{
int ret;
char buf[256];
size_t buflen = sizeof(buf) - 1;
Py_BEGIN_ALLOW_THREADS
ret = wpa_ctrl_recv(self->ctrl_iface, buf, &buflen);
Py_END_ALLOW_THREADS
switch (ret) {
case 0:
buf[buflen] = '\0';
return Py_BuildValue("s", buf);
case -1:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_recv failed");
break;
default:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_recv returned unknown error");
break;
}
return NULL;
}
/* ------------------------------------------------------------------------- WPACtrl_scanresults */
static PyObject* WPACtrl_scanresults(WPACtrl* self)
{
int cell;
PyObject* results = PyList_New(0);
for (cell = 0; cell < 1000; cell++) {
int ret;
char bss[10];
char buf[2048];
size_t buflen = sizeof(buf) - 1;
snprintf(bss, sizeof(bss), "BSS %d", cell);
ret = wpa_ctrl_request(self->ctrl_iface, bss, sizeof(bss), buf, &buflen, NULL);
switch (ret) {
case 0:
buf[buflen] = '\0';
break;
case -1:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_request failed");
return NULL;
case -2:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_request timed out");
return NULL;
default:
PyErr_SetString(WPACtrl_error, "wpa_ctrl_request returned unknown error");
return NULL;
}
if (strstr(buf, "bssid="))
PyList_Append(results, Py_BuildValue("s", buf));
else
break;
}
return results;
}
/* ------------------------------------------------------------------------------- WPACtrl_close */
static void WPACtrl_close(WPACtrl* self)
{
if (self->ctrl_iface) {
if (self->attached == 1)
WPACtrl_detach(self);
wpa_ctrl_close(self->ctrl_iface);
self->ctrl_iface = NULL;
}
if (self->ctrl_iface_path) {
free(self->ctrl_iface_path);
self->ctrl_iface_path = NULL;
}
if (self->ob_type)
self->ob_type->tp_free((PyObject*)(self));
}
/* -------------------------------------------------------------------- Member/Method Structures */
static PyMethodDef module_methods[] = {
{
"version", wpactrl_version, METH_NOARGS,
"Returns a version tuple of wpactrl consisting of 3 integers; major version,\n"
"minor version and micro version."
},
{ NULL, NULL, 0, NULL }
};
static PyMethodDef WPACtrl_methods[] = {
{
"request", (PyCFunction)(WPACtrl_request), METH_VARARGS,
"Send a command to wpa_supplicant/hostapd. Returns the command response\n"
"in a string."
},
{
"attach", (PyCFunction)(WPACtrl_attach), METH_NOARGS,
"Register as an event monitor for the control interface."
},
{
"detach", (PyCFunction)(WPACtrl_detach), METH_NOARGS,
"Unregister event monitor from the control interface."
},
{
"pending", (PyCFunction)(WPACtrl_pending), METH_NOARGS,
"Check if any events/messages are pending. Returns True if messages are pending,\n"
"otherwise False."
},
{
"recv", (PyCFunction)(WPACtrl_recv), METH_NOARGS,
"Recieve a pending event/message from ctrl socket. Returns a message string."
},
{
"scanresults", (PyCFunction)(WPACtrl_scanresults), METH_NOARGS,
"Return list of scan results. Each element of the scan result list is a string\n"
"of properties for a single BSS. This method is specific to wpa_supplicant."
},
{ NULL, NULL, 0, NULL }
};
static PyMemberDef WPACtrl_members[] = {
{
"attached", T_INT, offsetof(WPACtrl, attached), READONLY,
"Set to value of 1 if instance has registered as an event monitor via\n"
"the attached() method, otherwise 0."
},
{
"ctrl_iface_path", T_STRING, offsetof(WPACtrl, ctrl_iface_path), READONLY,
"Pathname of WPACtrl control interface socket."
},
{ NULL }
};
/* ------------------------------------------------------------------------------ PyType_WPACtrl */
static PyTypeObject PyType_WPACtrl = {
PyObject_HEAD_INIT(NULL)
0, /* ob_size */
"wpactrl.WPACtrl", /* tp_name */
sizeof(WPACtrl), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)(WPACtrl_close), /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
PyObject_GenericGetAttr, /* tp_getattro */
PyObject_GenericSetAttr, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
0, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
WPACtrl_methods, /* tp_methods */
WPACtrl_members, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)(WPACtrl_open), /* tp_init */
0, /* tp_alloc */
PyType_GenericNew, /* tp_new */
0, /* tp_free */
0, /* tp_is_gc */
0, /* tp_bases */
0, /* tp_mro */
0, /* tp_cache */
0, /* tp_subclasses */
0, /* tp_weaklist */
0 /* tp_del */
};
/* --------------------------------------------------------------------------------- initwpactrl */
PyMODINIT_FUNC initwpactrl(void)
{
PyObject* module;
PyType_Ready(&PyType_WPACtrl);
module = Py_InitModule3("wpactrl", module_methods, WPACTRL_DOC_STRING);
WPACtrl_error = PyErr_NewException("wpactrl.error", NULL, NULL);
Py_INCREF(&PyType_WPACtrl);
Py_INCREF(WPACtrl_error);
PyModule_AddObject(module, "WPACtrl", (PyObject*)(&PyType_WPACtrl));
PyModule_AddObject(module, "error", WPACtrl_error);
}