Robin Davies
26 lines
1.3 KiB
Markdown
26 lines
1.3 KiB
Markdown
The pipedal_nm_p2pd service manages PiPedal P2P connections on Debian bookworm or later distros.
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Debian Bookworm switchs the entire network stack from the deprecated dhcpcd/NetworkManager
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stack to the current NetworkManager stack. Unfortunately, NetworkManager does not
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provide support for P2P Wi-fi direct.
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NetworkManager P2P support is abysmal, providing no support whatsoever
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for P2P GOs. Furthermore, a bug in NetworkManager prevents anyone else from providing a P2P GO
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solution through wpas_supplicant. Specifically, NetworkManager call RemoveInterface on any P2P
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group that it didn't start itself, even if p2p-dev-wlan-0 is marked as unmanaged.
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The solution: Configure NetworkManager to mark wlan0 as an unmanaged interface. This allows
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the pipedal_nm_p2pd service to manage p2p sessions via wpa_supplicant without interference from
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NetworkManager. Unfortunately, that means that PiPedal can't run wi-fi connections anymore when
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running Wifi p2p connections. If the NetworkManager project provides sensible support
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for p2p in future, we will look at it again.
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This project uses DBus interfaces, which is a significant improvement on the use of
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wpa_cli sockets in the old pipedal_p2pd module.
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Dependent packages:
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sudo apt install libsdbus-c++-dev
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sudo apt install libsdbus-c++-bin
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