524 lines
17 KiB
Rust
524 lines
17 KiB
Rust
use core::cmp::{max, min};
|
|
use core::iter::zip;
|
|
|
|
use embassy_net_driver_channel as ch;
|
|
use embassy_net_driver_channel::driver::{HardwareAddress, LinkState};
|
|
use embassy_time::Timer;
|
|
|
|
use crate::consts::*;
|
|
use crate::events::{Event, EventSubscriber, Events};
|
|
use crate::fmt::Bytes;
|
|
use crate::ioctl::{IoctlState, IoctlType};
|
|
use crate::structs::*;
|
|
use crate::{countries, events, PowerManagementMode};
|
|
|
|
#[derive(Debug)]
|
|
pub struct Error {
|
|
pub status: u32,
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub enum AddMulticastAddressError {
|
|
NotMulticast,
|
|
NoFreeSlots,
|
|
}
|
|
|
|
pub struct Control<'a> {
|
|
state_ch: ch::StateRunner<'a>,
|
|
events: &'a Events,
|
|
ioctl_state: &'a IoctlState,
|
|
}
|
|
|
|
impl<'a> Control<'a> {
|
|
pub(crate) fn new(state_ch: ch::StateRunner<'a>, event_sub: &'a Events, ioctl_state: &'a IoctlState) -> Self {
|
|
Self {
|
|
state_ch,
|
|
events: event_sub,
|
|
ioctl_state,
|
|
}
|
|
}
|
|
|
|
pub async fn init(&mut self, clm: &[u8]) {
|
|
const CHUNK_SIZE: usize = 1024;
|
|
|
|
debug!("Downloading CLM...");
|
|
|
|
let mut offs = 0;
|
|
for chunk in clm.chunks(CHUNK_SIZE) {
|
|
let mut flag = DOWNLOAD_FLAG_HANDLER_VER;
|
|
if offs == 0 {
|
|
flag |= DOWNLOAD_FLAG_BEGIN;
|
|
}
|
|
offs += chunk.len();
|
|
if offs == clm.len() {
|
|
flag |= DOWNLOAD_FLAG_END;
|
|
}
|
|
|
|
let header = DownloadHeader {
|
|
flag,
|
|
dload_type: DOWNLOAD_TYPE_CLM,
|
|
len: chunk.len() as _,
|
|
crc: 0,
|
|
};
|
|
let mut buf = [0; 8 + 12 + CHUNK_SIZE];
|
|
buf[0..8].copy_from_slice(b"clmload\x00");
|
|
buf[8..20].copy_from_slice(&header.to_bytes());
|
|
buf[20..][..chunk.len()].copy_from_slice(&chunk);
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_SET_VAR, 0, &mut buf[..8 + 12 + chunk.len()])
|
|
.await;
|
|
}
|
|
|
|
// check clmload ok
|
|
assert_eq!(self.get_iovar_u32("clmload_status").await, 0);
|
|
|
|
debug!("Configuring misc stuff...");
|
|
|
|
// Disable tx gloming which transfers multiple packets in one request.
|
|
// 'glom' is short for "conglomerate" which means "gather together into
|
|
// a compact mass".
|
|
self.set_iovar_u32("bus:txglom", 0).await;
|
|
self.set_iovar_u32("apsta", 1).await;
|
|
|
|
// read MAC addr.
|
|
let mut mac_addr = [0; 6];
|
|
assert_eq!(self.get_iovar("cur_etheraddr", &mut mac_addr).await, 6);
|
|
debug!("mac addr: {:02x}", Bytes(&mac_addr));
|
|
|
|
let country = countries::WORLD_WIDE_XX;
|
|
let country_info = CountryInfo {
|
|
country_abbrev: [country.code[0], country.code[1], 0, 0],
|
|
country_code: [country.code[0], country.code[1], 0, 0],
|
|
rev: if country.rev == 0 { -1 } else { country.rev as _ },
|
|
};
|
|
self.set_iovar("country", &country_info.to_bytes()).await;
|
|
|
|
// set country takes some time, next ioctls fail if we don't wait.
|
|
Timer::after_millis(100).await;
|
|
|
|
// Set antenna to chip antenna
|
|
self.ioctl_set_u32(IOCTL_CMD_ANTDIV, 0, 0).await;
|
|
|
|
self.set_iovar_u32("bus:txglom", 0).await;
|
|
Timer::after_millis(100).await;
|
|
//self.set_iovar_u32("apsta", 1).await; // this crashes, also we already did it before...??
|
|
//Timer::after_millis(100).await;
|
|
self.set_iovar_u32("ampdu_ba_wsize", 8).await;
|
|
Timer::after_millis(100).await;
|
|
self.set_iovar_u32("ampdu_mpdu", 4).await;
|
|
Timer::after_millis(100).await;
|
|
//self.set_iovar_u32("ampdu_rx_factor", 0).await; // this crashes
|
|
|
|
//Timer::after_millis(100).await;
|
|
|
|
// evts
|
|
let mut evts = EventMask {
|
|
iface: 0,
|
|
events: [0xFF; 24],
|
|
};
|
|
|
|
// Disable spammy uninteresting events.
|
|
evts.unset(Event::RADIO);
|
|
evts.unset(Event::IF);
|
|
evts.unset(Event::PROBREQ_MSG);
|
|
evts.unset(Event::PROBREQ_MSG_RX);
|
|
evts.unset(Event::PROBRESP_MSG);
|
|
evts.unset(Event::PROBRESP_MSG);
|
|
evts.unset(Event::ROAM);
|
|
|
|
self.set_iovar("bsscfg:event_msgs", &evts.to_bytes()).await;
|
|
|
|
Timer::after_millis(100).await;
|
|
|
|
// set wifi up
|
|
self.up().await;
|
|
|
|
Timer::after_millis(100).await;
|
|
|
|
self.ioctl_set_u32(110, 0, 1).await; // SET_GMODE = auto
|
|
self.ioctl_set_u32(142, 0, 0).await; // SET_BAND = any
|
|
|
|
Timer::after_millis(100).await;
|
|
|
|
self.state_ch.set_hardware_address(HardwareAddress::Ethernet(mac_addr));
|
|
|
|
debug!("INIT DONE");
|
|
}
|
|
|
|
/// Set the WiFi interface up.
|
|
async fn up(&mut self) {
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_UP, 0, &mut []).await;
|
|
}
|
|
|
|
/// Set the interface down.
|
|
async fn down(&mut self) {
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_DOWN, 0, &mut []).await;
|
|
}
|
|
|
|
pub async fn set_power_management(&mut self, mode: PowerManagementMode) {
|
|
// power save mode
|
|
let mode_num = mode.mode();
|
|
if mode_num == 2 {
|
|
self.set_iovar_u32("pm2_sleep_ret", mode.sleep_ret_ms() as u32).await;
|
|
self.set_iovar_u32("bcn_li_bcn", mode.beacon_period() as u32).await;
|
|
self.set_iovar_u32("bcn_li_dtim", mode.dtim_period() as u32).await;
|
|
self.set_iovar_u32("assoc_listen", mode.assoc() as u32).await;
|
|
}
|
|
self.ioctl_set_u32(86, 0, mode_num).await;
|
|
}
|
|
|
|
pub async fn join_open(&mut self, ssid: &str) -> Result<(), Error> {
|
|
self.set_iovar_u32("ampdu_ba_wsize", 8).await;
|
|
|
|
self.ioctl_set_u32(134, 0, 0).await; // wsec = open
|
|
self.set_iovar_u32x2("bsscfg:sup_wpa", 0, 0).await;
|
|
self.ioctl_set_u32(20, 0, 1).await; // set_infra = 1
|
|
self.ioctl_set_u32(22, 0, 0).await; // set_auth = open (0)
|
|
|
|
let mut i = SsidInfo {
|
|
len: ssid.len() as _,
|
|
ssid: [0; 32],
|
|
};
|
|
i.ssid[..ssid.len()].copy_from_slice(ssid.as_bytes());
|
|
|
|
self.wait_for_join(i).await
|
|
}
|
|
|
|
pub async fn join_wpa2(&mut self, ssid: &str, passphrase: &str) -> Result<(), Error> {
|
|
self.set_iovar_u32("ampdu_ba_wsize", 8).await;
|
|
|
|
self.ioctl_set_u32(134, 0, 4).await; // wsec = wpa2
|
|
self.set_iovar_u32x2("bsscfg:sup_wpa", 0, 1).await;
|
|
self.set_iovar_u32x2("bsscfg:sup_wpa2_eapver", 0, 0xFFFF_FFFF).await;
|
|
self.set_iovar_u32x2("bsscfg:sup_wpa_tmo", 0, 2500).await;
|
|
|
|
Timer::after_millis(100).await;
|
|
|
|
let mut pfi = PassphraseInfo {
|
|
len: passphrase.len() as _,
|
|
flags: 1,
|
|
passphrase: [0; 64],
|
|
};
|
|
pfi.passphrase[..passphrase.len()].copy_from_slice(passphrase.as_bytes());
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_SET_PASSPHRASE, 0, &mut pfi.to_bytes())
|
|
.await; // WLC_SET_WSEC_PMK
|
|
|
|
self.ioctl_set_u32(20, 0, 1).await; // set_infra = 1
|
|
self.ioctl_set_u32(22, 0, 0).await; // set_auth = 0 (open)
|
|
self.ioctl_set_u32(165, 0, 0x80).await; // set_wpa_auth
|
|
|
|
let mut i = SsidInfo {
|
|
len: ssid.len() as _,
|
|
ssid: [0; 32],
|
|
};
|
|
i.ssid[..ssid.len()].copy_from_slice(ssid.as_bytes());
|
|
|
|
self.wait_for_join(i).await
|
|
}
|
|
|
|
async fn wait_for_join(&mut self, i: SsidInfo) -> Result<(), Error> {
|
|
self.events.mask.enable(&[Event::SET_SSID, Event::AUTH]);
|
|
let mut subscriber = self.events.queue.subscriber().unwrap();
|
|
// the actual join operation starts here
|
|
// we make sure to enable events before so we don't miss any
|
|
|
|
// set_ssid
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_SET_SSID, 0, &mut i.to_bytes())
|
|
.await;
|
|
|
|
// to complete the join, we wait for a SET_SSID event
|
|
// we also save the AUTH status for the user, it may be interesting
|
|
let mut auth_status = 0;
|
|
let status = loop {
|
|
let msg = subscriber.next_message_pure().await;
|
|
if msg.header.event_type == Event::AUTH && msg.header.status != EStatus::SUCCESS {
|
|
auth_status = msg.header.status;
|
|
} else if msg.header.event_type == Event::SET_SSID {
|
|
// join operation ends with SET_SSID event
|
|
break msg.header.status;
|
|
}
|
|
};
|
|
|
|
self.events.mask.disable_all();
|
|
if status == EStatus::SUCCESS {
|
|
// successful join
|
|
self.state_ch.set_link_state(LinkState::Up);
|
|
debug!("JOINED");
|
|
Ok(())
|
|
} else {
|
|
warn!("JOIN failed with status={} auth={}", status, auth_status);
|
|
Err(Error { status })
|
|
}
|
|
}
|
|
|
|
pub async fn gpio_set(&mut self, gpio_n: u8, gpio_en: bool) {
|
|
assert!(gpio_n < 3);
|
|
self.set_iovar_u32x2("gpioout", 1 << gpio_n, if gpio_en { 1 << gpio_n } else { 0 })
|
|
.await
|
|
}
|
|
|
|
pub async fn start_ap_open(&mut self, ssid: &str, channel: u8) {
|
|
self.start_ap(ssid, "", Security::OPEN, channel).await;
|
|
}
|
|
|
|
pub async fn start_ap_wpa2(&mut self, ssid: &str, passphrase: &str, channel: u8) {
|
|
self.start_ap(ssid, passphrase, Security::WPA2_AES_PSK, channel).await;
|
|
}
|
|
|
|
async fn start_ap(&mut self, ssid: &str, passphrase: &str, security: Security, channel: u8) {
|
|
if security != Security::OPEN
|
|
&& (passphrase.as_bytes().len() < MIN_PSK_LEN || passphrase.as_bytes().len() > MAX_PSK_LEN)
|
|
{
|
|
panic!("Passphrase is too short or too long");
|
|
}
|
|
|
|
// Temporarily set wifi down
|
|
self.down().await;
|
|
|
|
// Turn off APSTA mode
|
|
self.set_iovar_u32("apsta", 0).await;
|
|
|
|
// Set wifi up again
|
|
self.up().await;
|
|
|
|
// Turn on AP mode
|
|
self.ioctl_set_u32(IOCTL_CMD_SET_AP, 0, 1).await;
|
|
|
|
// Set SSID
|
|
let mut i = SsidInfoWithIndex {
|
|
index: 0,
|
|
ssid_info: SsidInfo {
|
|
len: ssid.as_bytes().len() as _,
|
|
ssid: [0; 32],
|
|
},
|
|
};
|
|
i.ssid_info.ssid[..ssid.as_bytes().len()].copy_from_slice(ssid.as_bytes());
|
|
self.set_iovar("bsscfg:ssid", &i.to_bytes()).await;
|
|
|
|
// Set channel number
|
|
self.ioctl_set_u32(IOCTL_CMD_SET_CHANNEL, 0, channel as u32).await;
|
|
|
|
// Set security
|
|
self.set_iovar_u32x2("bsscfg:wsec", 0, (security as u32) & 0xFF).await;
|
|
|
|
if security != Security::OPEN {
|
|
self.set_iovar_u32x2("bsscfg:wpa_auth", 0, 0x0084).await; // wpa_auth = WPA2_AUTH_PSK | WPA_AUTH_PSK
|
|
|
|
Timer::after_millis(100).await;
|
|
|
|
// Set passphrase
|
|
let mut pfi = PassphraseInfo {
|
|
len: passphrase.as_bytes().len() as _,
|
|
flags: 1, // WSEC_PASSPHRASE
|
|
passphrase: [0; 64],
|
|
};
|
|
pfi.passphrase[..passphrase.as_bytes().len()].copy_from_slice(passphrase.as_bytes());
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_SET_PASSPHRASE, 0, &mut pfi.to_bytes())
|
|
.await;
|
|
}
|
|
|
|
// Change mutlicast rate from 1 Mbps to 11 Mbps
|
|
self.set_iovar_u32("2g_mrate", 11000000 / 500000).await;
|
|
|
|
// Start AP
|
|
self.set_iovar_u32x2("bss", 0, 1).await; // bss = BSS_UP
|
|
}
|
|
|
|
/// Add specified address to the list of hardware addresses the device
|
|
/// listens on. The address must be a Group address (I/G bit set). Up
|
|
/// to 10 addresses are supported by the firmware. Returns the number of
|
|
/// address slots filled after adding, or an error.
|
|
pub async fn add_multicast_address(&mut self, address: [u8; 6]) -> Result<usize, AddMulticastAddressError> {
|
|
// The firmware seems to ignore non-multicast addresses, so let's
|
|
// prevent the user from adding them and wasting space.
|
|
if address[0] & 0x01 != 1 {
|
|
return Err(AddMulticastAddressError::NotMulticast);
|
|
}
|
|
|
|
let mut buf = [0; 64];
|
|
self.get_iovar("mcast_list", &mut buf).await;
|
|
|
|
let n = u32::from_le_bytes(buf[..4].try_into().unwrap()) as usize;
|
|
let (used, free) = buf[4..].split_at_mut(n * 6);
|
|
|
|
if used.chunks(6).any(|a| a == address) {
|
|
return Ok(n);
|
|
}
|
|
|
|
if free.len() < 6 {
|
|
return Err(AddMulticastAddressError::NoFreeSlots);
|
|
}
|
|
|
|
free[..6].copy_from_slice(&address);
|
|
let n = n + 1;
|
|
buf[..4].copy_from_slice(&(n as u32).to_le_bytes());
|
|
|
|
self.set_iovar_v::<80>("mcast_list", &buf).await;
|
|
Ok(n)
|
|
}
|
|
|
|
/// Retrieve the list of configured multicast hardware addresses.
|
|
pub async fn list_mulistcast_addresses(&mut self, result: &mut [[u8; 6]; 10]) -> usize {
|
|
let mut buf = [0; 64];
|
|
self.get_iovar("mcast_list", &mut buf).await;
|
|
|
|
let n = u32::from_le_bytes(buf[..4].try_into().unwrap()) as usize;
|
|
let used = &buf[4..][..n * 6];
|
|
|
|
for (addr, output) in zip(used.chunks(6), result.iter_mut()) {
|
|
output.copy_from_slice(addr)
|
|
}
|
|
|
|
n
|
|
}
|
|
|
|
async fn set_iovar_u32x2(&mut self, name: &str, val1: u32, val2: u32) {
|
|
let mut buf = [0; 8];
|
|
buf[0..4].copy_from_slice(&val1.to_le_bytes());
|
|
buf[4..8].copy_from_slice(&val2.to_le_bytes());
|
|
self.set_iovar(name, &buf).await
|
|
}
|
|
|
|
async fn set_iovar_u32(&mut self, name: &str, val: u32) {
|
|
self.set_iovar(name, &val.to_le_bytes()).await
|
|
}
|
|
|
|
async fn get_iovar_u32(&mut self, name: &str) -> u32 {
|
|
let mut buf = [0; 4];
|
|
let len = self.get_iovar(name, &mut buf).await;
|
|
assert_eq!(len, 4);
|
|
u32::from_le_bytes(buf)
|
|
}
|
|
|
|
async fn set_iovar(&mut self, name: &str, val: &[u8]) {
|
|
self.set_iovar_v::<64>(name, val).await
|
|
}
|
|
|
|
async fn set_iovar_v<const BUFSIZE: usize>(&mut self, name: &str, val: &[u8]) {
|
|
debug!("set {} = {:02x}", name, Bytes(val));
|
|
|
|
let mut buf = [0; BUFSIZE];
|
|
buf[..name.len()].copy_from_slice(name.as_bytes());
|
|
buf[name.len()] = 0;
|
|
buf[name.len() + 1..][..val.len()].copy_from_slice(val);
|
|
|
|
let total_len = name.len() + 1 + val.len();
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_SET_VAR, 0, &mut buf[..total_len])
|
|
.await;
|
|
}
|
|
|
|
// TODO this is not really working, it always returns all zeros.
|
|
async fn get_iovar(&mut self, name: &str, res: &mut [u8]) -> usize {
|
|
debug!("get {}", name);
|
|
|
|
let mut buf = [0; 64];
|
|
buf[..name.len()].copy_from_slice(name.as_bytes());
|
|
buf[name.len()] = 0;
|
|
|
|
let total_len = max(name.len() + 1, res.len());
|
|
let res_len = self
|
|
.ioctl(IoctlType::Get, IOCTL_CMD_GET_VAR, 0, &mut buf[..total_len])
|
|
.await;
|
|
|
|
let out_len = min(res.len(), res_len);
|
|
res[..out_len].copy_from_slice(&buf[..out_len]);
|
|
out_len
|
|
}
|
|
|
|
async fn ioctl_set_u32(&mut self, cmd: u32, iface: u32, val: u32) {
|
|
let mut buf = val.to_le_bytes();
|
|
self.ioctl(IoctlType::Set, cmd, iface, &mut buf).await;
|
|
}
|
|
|
|
async fn ioctl(&mut self, kind: IoctlType, cmd: u32, iface: u32, buf: &mut [u8]) -> usize {
|
|
struct CancelOnDrop<'a>(&'a IoctlState);
|
|
|
|
impl CancelOnDrop<'_> {
|
|
fn defuse(self) {
|
|
core::mem::forget(self);
|
|
}
|
|
}
|
|
|
|
impl Drop for CancelOnDrop<'_> {
|
|
fn drop(&mut self) {
|
|
self.0.cancel_ioctl();
|
|
}
|
|
}
|
|
|
|
let ioctl = CancelOnDrop(self.ioctl_state);
|
|
let resp_len = ioctl.0.do_ioctl(kind, cmd, iface, buf).await;
|
|
ioctl.defuse();
|
|
|
|
resp_len
|
|
}
|
|
|
|
/// Start a wifi scan
|
|
///
|
|
/// Returns a `Stream` of networks found by the device
|
|
///
|
|
/// # Note
|
|
/// Device events are currently implemented using a bounded queue.
|
|
/// To not miss any events, you should make sure to always await the stream.
|
|
pub async fn scan(&mut self) -> Scanner<'_> {
|
|
const SCANTYPE_PASSIVE: u8 = 1;
|
|
|
|
let scan_params = ScanParams {
|
|
version: 1,
|
|
action: 1,
|
|
sync_id: 1,
|
|
ssid_len: 0,
|
|
ssid: [0; 32],
|
|
bssid: [0xff; 6],
|
|
bss_type: 2,
|
|
scan_type: SCANTYPE_PASSIVE,
|
|
nprobes: !0,
|
|
active_time: !0,
|
|
passive_time: !0,
|
|
home_time: !0,
|
|
channel_num: 0,
|
|
channel_list: [0; 1],
|
|
};
|
|
|
|
self.events.mask.enable(&[Event::ESCAN_RESULT]);
|
|
let subscriber = self.events.queue.subscriber().unwrap();
|
|
self.set_iovar_v::<256>("escan", &scan_params.to_bytes()).await;
|
|
|
|
Scanner {
|
|
subscriber,
|
|
events: &self.events,
|
|
}
|
|
}
|
|
/// Leave the wifi, with which we are currently associated.
|
|
pub async fn leave(&mut self) {
|
|
self.ioctl(IoctlType::Set, IOCTL_CMD_DISASSOC, 0, &mut []).await;
|
|
info!("Disassociated")
|
|
}
|
|
}
|
|
|
|
pub struct Scanner<'a> {
|
|
subscriber: EventSubscriber<'a>,
|
|
events: &'a Events,
|
|
}
|
|
|
|
impl Scanner<'_> {
|
|
/// wait for the next found network
|
|
pub async fn next(&mut self) -> Option<BssInfo> {
|
|
let event = self.subscriber.next_message_pure().await;
|
|
if event.header.status != EStatus::PARTIAL {
|
|
self.events.mask.disable_all();
|
|
return None;
|
|
}
|
|
|
|
if let events::Payload::BssInfo(bss) = event.payload {
|
|
Some(bss)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Drop for Scanner<'_> {
|
|
fn drop(&mut self) {
|
|
self.events.mask.disable_all();
|
|
}
|
|
}
|