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3bdd6d5ad5
linux-stable/kernel/configs
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Marijn Suijten 3bdd6d5ad5 config: android-recommended: Disable BPF_UNPRIV_DEFAULT_OFF for netd 
AOSP's `netd` process fails to start on Android S:

    E ClatdController: getClatEgress4MapFd() failure: Operation not permitted
    I netd    : Initializing ClatdController: 410us
    E netd    : Failed to start trafficcontroller: (Status[code: 1, msg: "Pinned map not accessible or does not exist: (/sys/fs/bpf/map_netd_cookie_tag_map): Operation not permitted"])
    E netd    : CRITICAL: sleeping 60 seconds, netd exiting with failure, crash loop likely!

And on Android R:

    I ClatdController: 4.9+ kernel and device shipped with P - clat ebpf might work.
    E ClatdController: getClatEgressMapFd() failure: Operation not permitted
    I netd    : Initializing ClatdController: 1409us
    E netd    : Failed to start trafficcontroller: (Status[code: 1, msg: "Pinned map not accessible or does not exist: (/sys/fs/bpf/map_netd_cookie_tag_map): Operation not permitted"])

These permission issues are caused by 08389d8882 ("bpf: Add kconfig
knob for disabling unpriv bpf by default") because AOSP does not provide
netd the `SYS_ADMIN` capability, and also has no userspace support for
the `BPF` capability yet.

Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: John Stultz <john.stultz@linaro.org>
[John suggested this in https://linaro.atlassian.net/browse/ACK-107?focusedCommentId=117382]
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Link: https://lore.kernel.org/r/20220202100528.190794-2-marijn.suijten@somainline.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-25 12:10:27 +01:00
..
android-base.config drivers/char: remove /dev/kmem for good 2021-05-07 00:26:34 -07:00
android-recommended.config config: android-recommended: Disable BPF_UNPRIV_DEFAULT_OFF for netd 2022-02-25 12:10:27 +01:00
debug.config configs: introduce debug.config for CI-like setup 2022-01-20 08:52:55 +02:00
kvm_guest.config kvm_config: add CONFIG_VIRTIO_MENU 2018-10-24 20:55:56 -04:00
nopm.config PM: Provide a config snippet for disabling PM 2017-12-04 15:14:48 +01:00
tiny-base.config kconfig: do not use allnoconfig_y option 2021-04-14 15:22:49 +09:00
tiny.config compiler: remove CONFIG_OPTIMIZE_INLINING entirely 2020-04-07 10:43:42 -07:00
xen.config kconfig: add xenconfig defconfig helper 2015-06-16 11:04:29 +01:00