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wifi/simdriver: Support the sim wifi.

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Add the Sim WiFi function, which can provide the wifi operating on nuttx sim emulator,
  and support two modes that simulate wifi, HWSIM and RNC(real network card).

 - In the HWSIM mode, we simulates two wlan interfaces. The wlan0 is STA and
   the wlan1 is AP. The wlan0 can connect to the wlan1 in the nuttx simulator.
 - In the RNC mode, we can use the same wlan interface name on the nuttx simulator
   to control the connection behavior of the real wireless card.

Signed-off-by: liqinhui <liqinhui@xiaomi.com>
This commit is contained in:
liqinhui
2023-10-12 17:08:25 +08:00
committed by Xiang Xiao
parent 061be5f18e
commit d27ca03b6c
14 changed files with 2317 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/sim/Kconfig
+11 -1
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@@ -223,13 +223,23 @@ config SIM_NETDEV_NUMBER
int "Number of Simulated Network Device"
default 1
range 1 8
depends on SIM_NETDEV_TAP
depends on SIM_NETDEV
---help---
The number of simulated network devices.
Note that only one network device will be brought up by netinit automatically,
others will be kept in DOWN state by default.
config SIM_WIFIDEV_NUMBER
int "Number of Simulated WiFi Device"
default 0
range 0 SIM_NETDEV_NUMBER
depends on SIM_NETDEV && DRIVERS_IEEE80211 && NETDEV_WIRELESS_HANDLER
---help---
The number of simulated wifi network devices.
Note that only one network device will be brought up by netinit automatically,
others will be kept in DOWN state by default.
endif
config SIM_NETDEV_VPNKIT_PATH
arch/sim/src/Makefile
+4
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@@ -179,6 +179,10 @@ ifeq ($(CONFIG_FS_FAT),y)
STDLIBS += -lz
endif
ifneq ($(CONFIG_SIM_WIFIDEV_NUMBER),0)
CFLAGS += -DTOPDIR=\"$(TOPDIR)\"
endif
ifeq ($(CONFIG_SIM_NETDEV_TAP),y)
CSRCS += sim_netdriver.c
ifneq ($(CONFIG_WINDOWS_CYGWIN),y)
arch/sim/src/sim/sim_internal.h
+4
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@@ -60,6 +60,10 @@
# define CONFIG_SIM_NETDEV_NUMBER 1
#endif
#ifndef CONFIG_SIM_WIFIDEV_NUMBER
# define CONFIG_SIM_WIFIDEV_NUMBER 0
#endif
/* Determine which (if any) console driver to use */
#ifndef CONFIG_DEV_CONSOLE
arch/sim/src/sim/sim_netdriver.c
+28 -2
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@@ -86,6 +86,9 @@
#define DEVIDX(p) ((struct sim_netdev_s *)(p) - g_sim_dev)
#define DEVBUF(p) (((struct sim_netdev_s *)(p))->buf)
#if CONFIG_SIM_WIFIDEV_NUMBER != 0
# include "sim_wifidriver.c"
#else
/****************************************************************************
* Private Types
****************************************************************************/
@@ -95,6 +98,7 @@ struct sim_netdev_s
struct netdev_lowerhalf_s dev;
uint8_t buf[SIM_NETDEV_BUFSIZE]; /* Used when packet buffer is fragmented */
};
#endif
/****************************************************************************
* Private Function Prototypes
@@ -188,7 +192,21 @@ static int netdriver_ifup(struct netdev_lowerhalf_s *dev)
#else /* CONFIG_NET_IPv6 */
sim_netdev_ifup(DEVIDX(dev), &dev->netdev.d_ipv6addr);
#endif /* CONFIG_NET_IPv4 */
netdev_lower_carrier_on(dev);
#if CONFIG_SIM_WIFIDEV_NUMBER != 0
if (DEVIDX(dev) < CONFIG_SIM_WIFIDEV_NUMBER)
{
if (wifidriver_connected(dev))
{
netdev_lower_carrier_on(dev);
}
}
else
#endif
{
netdev_lower_carrier_on(dev);
}
return OK;
}
@@ -236,11 +254,19 @@ int sim_netdriver_init(void)
dev->quota[NETPKT_RX] = 1;
dev->ops = &g_ops;
#if CONFIG_SIM_WIFIDEV_NUMBER != 0
if (devidx < CONFIG_SIM_WIFIDEV_NUMBER)
{
wifidriver_init(dev, devidx);
}
#endif
/* Register the device with the OS so that socket IOCTLs can be
* performed
*/
netdev_lower_register(dev, NET_LL_ETHERNET);
netdev_lower_register(dev, devidx < CONFIG_SIM_WIFIDEV_NUMBER ?
NET_LL_IEEE80211 : NET_LL_ETHERNET);
}
return OK;
arch/sim/src/sim/sim_wifidriver.c
+1490
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File diff suppressed because it is too large Load Diff
drivers/net/Kconfig
+1 -1
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@@ -48,7 +48,7 @@ config NETDEV_WORK_THREAD_PRIORITY
config NETDEV_WIRELESS_HANDLER
bool "Support wireless handler in upper-half driver"
default y
depends on NETDEV_IOCTL
depends on NETDEV_WIRELESS_IOCTL
---help---
Enable the wireless handler support in upper-half driver.
tools/simwifi/README
+115
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@@ -0,0 +1,115 @@
# Function
The simwifi can provides host Settings for sim wifi on nuttx sim emulator.
The script sim_wifi.sh supports two modes that simulate wifi, HWSIM and RNC
(real network card).
- In the HWSIM mode, we simulates two wlan interfaces. The wlan0 is STA and
the wlan1 is AP. The wlan0 can connect to the wlan1 in the nuttx simulator.
- In the RNC mode, we can use the same wlan interface name on the nuttx simulator
to control the connection behavior of the real wireless card.
# Config
Before using the Sim WiFi function, we need to perform the following
configurations:
- nuttx
SIM_NETDEV_NUMBER=3
SIM_WIFIDEV_NUMBER=2
SIM_NETDEV_TAP=y
DRIVERS_IEEE80211=y
NETDEV_WIRELESS_HANDLER=y
- apps
WIRELESS_WAPI_CMDTOOL=y
SYSTEM_DHCPC_RENEW=y
NETUTILS_DHCPD=y
# Using
We can use the './tools/simwifi/sim_wifi.sh help' command to view the commands
provided by the sim_wifi.sh script and the results are as follows.
sim_wifi.sh (rename <old> <new> |
init <wan> <mode> |clean |
start_wpa <wlan0> |stop_wpa |
start_hostapd <wlan0> |stop_hostapd |
start_udhcpc <wlan0> |stop_udhcpc |
start_dhcp <wlan0> |stop_dhcp |
start_hwsim |stop_hwsim |up_hwsim |
start_net <wlan0> |stop_net <wlan0> |
start_sta <wlan0> |stop_sta |
start_ap <wlan0> [eth0] |stop_ap <wlan0> [eth0] |
start_bridge <eth0> |stop_bridge <eth0> |
show | help)
- Init the simwifi, the command format is as follows:
sudo ./tools/simwifi/sim_wifi.sh init <wan> <mode>
The <wan> is the name of the interface for accessing the Internet.
The <mode> is the simwifi mode, HWSIM and RNC.
Setting HWSIM:
sudo ./tools/simwifi/sim_wifi.sh init eno1 HWSIM
Setting RNC:
sudo ./tools/simwifi/sim_wifi.sh init eno1 RNC
- In HWSIM mode:
Start the hwsim services, the command is as follows.
sudo ./tools/simwifi/sim_wifi.sh start_hwsim
Stop the hwsim services, the command is as follows
sudo ./tools/simwifi/sim_wifi.sh stop_hwsim
- In RNC mode:
Maybe the real wireless card name format is not wlanx, in this case
we need to change it to wlanx format. The command is as follows
sudo simwifi rename <old_name> wlanx
* Set the real wireless network card to STA mode.
sudo ./tools/simwifi/sim_wifi.sh start_sta wlan0
* Set the real wireless network card to AP mode.
sudo ./tools/simwifi/sim_wifi.sh start_ap wlan0
Finally we can clean up all the files, configurations and services of the simwifi.
sudo ./tools/simwifi/sim_wifi.sh clean
# Location problems
We can use the following command to locate the problem and display the
status.
cmd: sudo ./tools/simwifi/sim_wifi.sh show
log:
/var/run/simwifi
dnsmasq.conf hostapd simwifi.log udhcpc.script wpa_supplicant.pid
dnsmasq.leases hostapd.conf simwifi.state wpa_supplicant
dnsmasq.pid simwifi.conf udhcpc.pid wpa_supplicant.conf
services list
root 1880671 2046 0 10月10 ? 00:00:00 /usr/sbin/wpa_supplicant -B -c /var/run/simwifi/wpa_supplicant.conf -iwlan0 -P /var/run/simwifi/wpa_supplicant.pid
nobody 1880680 2046 0 10月10 ? 00:00:00 /usr/sbin/dnsmasq -inuttx0 -C /var/run/simwifi/dnsmasq.conf --log-debug -x /var/run/simwifi/dnsmasq.pid
root 1880672 2046 0 10月10 ? 00:00:00 /usr/sbin/udhcpc -i wlan0 -p /var/run/simwifi/udhcpc.pid -s /var/run/simwifi/udhcpc.script
bridge nuttx0
222: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master nuttx0 state UNKNOWN mode DEFAULT group default qlen 1000
link/ether 2e:b0:bc:79:41:02 brd ff:ff:ff:ff:ff:ff
223: tap1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop master nuttx0 state DOWN mode DEFAULT group default qlen 1000
link/ether a6:33:96:26:a4:1d brd ff:ff:ff:ff:ff:ff
default config
defwan:eno1
mode:rnc
state:SW_STA
wlan:wlan0
br:nuttx0
default via 10.221.127.254 dev eno1 proto dhcp metric 100
10.0.1.0/24 dev nuttx0 proto kernel scope link src 10.0.1.1
10.221.96.0/19 dev eno1 proto kernel scope link src 10.221.108.5 metric 100
tools/simwifi/dnsmasq.conf
+8
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@@ -0,0 +1,8 @@
dhcp-leasefile=/var/run/simwifi/dnsmasq.leases
port=0
dhcp-range=10.0.1.100,10.0.1.250,255.255.255.0,12h
dhcp-option=option:router,10.0.1.1
dhcp-option=option:dns-server,8.8.8.8,8.8.4.4
dhcp-option=option:netmask,255.255.255.0
tools/simwifi/hostapd.conf
+14
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@@ -0,0 +1,14 @@
ctrl_interface=/var/run/simwifi/hostapd
driver=nl80211
ssid=NuttX_WiFi
hw_mode=g
channel=8
wmm_enabled=0
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=12345678
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
tools/simwifi/hostapd_hwsim.conf
+14
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@@ -0,0 +1,14 @@
ctrl_interface=/var/run/simwifi/hostapd
driver=nl80211
ssid=Hwsim_WiFi
hw_mode=g
channel=8
wmm_enabled=0
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=12345678
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
tools/simwifi/sim_wifi.sh
Executable
+576
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File diff suppressed because it is too large Load Diff
tools/simwifi/udhcpc.script
+40
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@@ -0,0 +1,40 @@
#!/bin/sh
# Busybox udhcpc dispatcher script.
# Copyright (C) 2009 by Axel Beckert.
# Copyright (C) 2014 by Michael Tokarev.
#
# Based on the busybox example scripts and the old udhcp source
# Modified base on default.scripts.
log() {
logger -t "udhcpc[$PPID]" -p daemon.$1 "$interface: $2"
}
case $1 in
bound|renew)
# Configure new IP address.
# Do it unconditionally even if the address hasn't changed,
# to also set subnet, broadcast, mtu, ...
busybox ifconfig $interface ${mtu:+mtu $mtu} \
$ip netmask $subnet ${broadcast:+broadcast $broadcast}
log info "$1: IP=$ip/$subnet router=$router domain=\"$domain\" dns=\"$dns\" lease=$lease"
;;
deconfig)
busybox ip link set $interface up
busybox ip -4 addr flush dev $interface
busybox ip -4 route flush dev $interface
log notice "deconfigured"
;;
leasefail | nak)
log err "configuration failed: $1: $message"
;;
*)
echo "$0: Unknown udhcpc command: $1" >&2
exit 1
;;
esac
tools/simwifi/wpa_supplicant.conf
+2
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@@ -0,0 +1,2 @@
ctrl_interface=/var/run/simwifi/wpa_supplicant
update_config=1
tools/simwifi/wpa_supplicant_hwsim.conf
+10
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@@ -0,0 +1,10 @@
ctrl_interface=/var/run/simwifi/wpa_supplicant
update_config=1
network={
ssid="Hwsim_WiFi"
psk="12345678"
key_mgmt=WPA-PSK
group=CCMP
disabled=1
}