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seemoo-lab / mobisys2018_nexmon_software_defined_radio

Proof of concept project for operating Broadcom Wi-Fi chips as arbitrary signal transmitters similar to software-defined radios (SDRs)
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The wlan0 is down after installing 7_45_154 firmware on RPI 4B #16

Open chivas1000 opened 3 years ago

chivas1000 commented 3 years ago

I've follow up the steps on the repo, but when make install-rpi3plus It didn't pops error but the wlan0 disappered in ifconfig -a

Also, I've thought that if the firmware were installed and proper utilties are installed, the SDR function should also works. So I've just use the steps in: https://github.com/seemoo-lab/nexmon_csi to build that firmware, when executing myframe.sh, it also didn't pops error, but I can't receive any frame of wlan.addr == 82:7b:be:f0:96:e0 in the pcap file when my nexus 6p set in monitor mode. I'm not sure if the frames are truly send out or not...

I don't know where did I go wrong and much thanks if someone offers a assistance.

chrissy-risk commented 3 years ago

@chivas1000 I ran into the same problem as you. But I opened the wlan0 port according to the instructions on the Internet, but found that the signal is still not sent from the wlan0 port, but from eth0. Have you seen the matlab program that generates the .sh script? Is the interface set in the program? I personally prefer to use some means to make the wlan0 port run successfully.

chivas1000 commented 3 years ago

@chivas1000 I ran into the same problem as you. But I opened the wlan0 port according to the instructions on the Internet, but found that the signal is still not sent from the wlan0 port, but from eth0. Have you seen the matlab program that generates the .sh script? Is the interface set in the program? I personally prefer to use some means to make the wlan0 port run successfully.

@chrissy-risk ,may I ask which instruction (a link is better) did you used to open the wlan0 port? and I think it shouldn't make sense that the signal sent from eth0, wouldn't it is a ethernet interface? And I seen the frame generate program, but I couldn't fully realise it.

Oriseven commented 2 years ago

@chivas1000 I ran into the same problem as you. But I opened the wlan0 port according to the instructions on the Internet, but found that the signal is still not sent from the wlan0 port, but from eth0. Have you seen the matlab program that generates the .sh script? Is the interface set in the program? I personally prefer to use some means to make the wlan0 port run successfully.

@chrissy-risk ,may I ask which instruction (a link is better) did you used to open the wlan0 port? and I think it shouldn't make sense that the signal sent from eth0, wouldn't it is a ethernet interface? And I seen the frame generate program, but I couldn't fully realise it.

@chivas1000 Have you solved this problem? I installed 7_45_154 on RBI 4B with 4.19/5.15 kernel versions, this problem occurred every time.