- 环境
RK3568或RK3588
Ubuntu, Debian系统
Wi-Fi：AP6275S
- 查看wifi版本
cat /sys/bus/sdio/devices/mmc2\:0001\:1/vendor
cat /sys/bus/sdio/devices/mmc2\:0001\:1/device
dmesg | grep -i wlan
- 0x02d0:0xaae8 表示 AP6275S。
- 0x024c:0xb852 表示 RTL8852。
- 0x024c:0xd723 表示 RTL8723DS。
- 0x024c:0xc821 表示 RTL8821CS。
- 0x1ffe:0x6316 表示 FD7352S。
- 下载hostapd
apt install --download-only hostapd
- 安装hostapd
dpkg -i hostapd_2%3a2.9-1ubuntu4.4_arm64.deb
Selecting previously unselected package hostapd.
(Reading database ... 101255 files and directories currently installed.)
Preparing to unpack hostapd_2%3a2.9-1ubuntu4.4_arm64.deb ...
Unpacking hostapd (2:2.9-1ubuntu4.4) ...
Setting up hostapd (2:2.9-1ubuntu4.4) ...
Created symlink /etc/systemd/system/multi-user.target.wants/hostapd.service → /lib/systemd/system/hostapd.service.
Job for hostapd.service failed because the control process exited with error code.
See "systemctl status hostapd.service" and "journalctl -xe" for details.
Created symlink /etc/systemd/system/hostapd.service → /dev/null.
Processing triggers for systemd (245.4-4ubuntu3.24) ...
Processing triggers for man-db (2.9.1-1) ...
- 添加ap配置
vim /etc/hostapd/hostapd.conf
interface=wlan0
driver=nl80211
ssid=neardi_rk3568
hw_mode=a
channel=36
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
- 修改hostapd配置的引用(添加最后一行的：DAEMON_CONF="/etc/hostapd/hostapd.conf" )
vim /etc/default/hostapd
# Defaults for hostapd initscript
#
# WARNING: The DAEMON_CONF setting has been deprecated and will be removed
# in future package releases.
#
# See /usr/share/doc/hostapd/README.Debian for information about alternative
# methods of managing hostapd.
#
# Uncomment and set DAEMON_CONF to the absolute path of a hostapd configuration
# file and hostapd will be started during system boot. An example configuration
# file can be found at /usr/share/doc/hostapd/examples/hostapd.conf.gz
#
#DAEMON_CONF=""
# Additional daemon options to be appended to hostapd command:-
# -d show more debug messages (-dd for even more)
# -K include key data in debug messages
# -t include timestamps in some debug messages
#
# Note that -B (daemon mode) and -P (pidfile) options are automatically
# configured by the init.d script and must not be added to DAEMON_OPTS.
#
#DAEMON_OPTS=""
DAEMON_CONF="/etc/hostapd/hostapd.conf"
- 启动ap
systemctl unmask hostapd
systemctl restart hostapd
注：unmask 解除 hostapd 服务的屏蔽状态。当一个服务被屏蔽（masked）时，它不能被启动或启用。屏蔽通常用于防止服务被意外启动。解除屏蔽（unmask）是为了允许该服务再次启动。
- 安装isc-dhcp-server
apt install isc-dhcp-server
- 配置wlan0
1) ifconfig wlan0 171.172.10.1
2) vim /etc/default/isc-dhcp-server(主要添加：INTERFACESv4="wlan0")
# Defaults for isc-dhcp-server (sourced by /etc/init.d/isc-dhcp-server)
# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
#DHCPDv4_CONF=/etc/dhcp/dhcpd.conf
#DHCPDv6_CONF=/etc/dhcp/dhcpd6.conf
# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
#DHCPDv4_PID=/var/run/dhcpd.pid
#DHCPDv6_PID=/var/run/dhcpd6.pid
# Additional options to start dhcpd with.
# Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
#OPTIONS=""
# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
# Separate multiple interfaces with spaces, e.g. "eth0 eth1".
INTERFACESv4="wlan0"
INTERFACESv6=""
3) vim /etc/dhcp/dhcpd.conf
# dhcpd.conf
#
# Sample configuration file for ISC dhcpd
#
# Attention: If /etc/ltsp/dhcpd.conf exists, that will be used as
# configuration file instead of this file.
#
# option definitions common to all supported networks...
option domain-name "example.org";
option domain-name-servers 8.8.8.8;
default-lease-time 600;
max-lease-time 7200;
…………
…………
#shared-network 224-29 {
# subnet 10.17.224.0 netmask 255.255.255.0 {
# option routers rtr-224.example.org;
# }
# subnet 10.0.29.0 netmask 255.255.255.0 {
# option routers rtr-29.example.org;
# }
# pool {
# allow members of "foo";
# range 10.17.224.10 10.17.224.250;
# }
# pool {
# deny members of "foo";
# range 10.0.29.10 10.0.29.230;
# }
#}
subnet 171.172.10.0 netmask 255.255.255.0 {
range 171.172.10.100 171.172.10.200;
option routers 171.172.10.1;
option domain-name-servers 8.8.8.8, 8.8.4.4;
}
- 启动dhcp server
systemctl restart isc-dhcp-server
- iperf调试
# 下行测试
设备：./iperf -s
PC端：iperf -c 172.16.19.165 -i 1 -t 20 -w 1M
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-3600.2 sec 18.9 GBytes 45.1 Mbits/sec
# 上行测试
设备：./iperf -c 172.16.19.38 -i 1 -t 20 -w 1M
PC端：iperf -s -w 1M
[ ID] Interval Transfer Bandwidth
[432] 0.0-3600.0 sec 17.1 GBytes 40.9 Mbits/sec
注：
1.PC端作服务端时，如不加 -w 1M参数，一般电脑的TCP窗口都会比较小，测试千兆上行时带宽不会够。
2.测试结果在设备端查看即可。
3. iperf 客户端发送数据到服务端，这通常被视为下载测试（从服务端的角度来看）
- 网络共享
# 将eth1的网络通过wlan0热点分享出去，参考以下步骤：
#开启网络转发功能
echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
#网络转发的功能生效
sysctl -p
#将从eth1网卡输出的数据包进行源地址伪装，让其他设备通过eth1网卡访问外部网络，而不会被外部网络拒绝
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
#允许从eth1网卡输入的数据包，若状态是RELATED或者ESTABLISHED，转发到wlan0网卡输出，让eth1网卡收到的响应数据包返回到wlan0
iptables -A FORWARD -i eth1 -o wlan0 -m state --state RELATED,ESTABLISHED -j ACCEPT
#允许从wlan0网卡输入的数据包，无条件地转发到eth1网卡输出，让wlan0网卡的设备通过eth1网卡访问外部网络
iptables -A FORWARD -i wlan0 -o eth1 -j ACCEPT
- 参考
1.官网（非常重要）：
http://wiki.neardi.com/wiki/linux_guide/zh_CN/docs/demo/demo_hostapd.html
2.STA/AP使能与测试：
https://forum.neardi.com/d/46-fd7352swifimo-kuai-shi-yong
服务器端运行：
iperf3 -s
机器端运行：
iperf3 -c ipaddr -P 6 -b 1000M -t 30 -i 1 // 测试发送
iperf3 -c ipaddr -P 6 -b 1000M -t 30 -i 1 -R //测试接收
-c ipaddr：指定 iperf3 服务器的 IP 地址（替换 ipaddr 为服务器的实际 IP 地址）。
-P 6：使用 6 个并行的流来进行测试。并行流可以帮助测试在多连接情况下的网络性能。
-b 1000M：设置带宽为 1000 Mbps（即 1 Gbps）。这个选项告诉 iperf3 客户端期望以 1 Gbps 的速度发送数据。
-t 30：测试持续时间为 30 秒。
-i 1：每秒报告一次测试结果。
-R：反向测试模式，意味着测试将会从服务器到客户端进行。这将使 iperf3 在服务器端向客户端发送数据，而不是客户端向服务器发送数据
3.Linux(5)WIFI/BT调试笔记：
http://zhanzhang.ceden.cn/?article/1488404
4.LubanCat-RK3588系列板卡快速使用手册（蓝牙部分）：
https://doc.embedfire.com/linux/rk3588/quick_start/zh/latest/quick_start/wireless/bluetooth/bluetooth.html
