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Revert "service: don't give CAP_DAC_OVERRIDE capability to NetworkManager"

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Well, that was short. Seems we need CAP_DAC_OVERRIDE at least for the
OVS plugin. The OVS socket is

  srwxr-x---. 1 openvswitch openvswitch 0 Xxx xx xx:xx /run/openvswitch/db.sock

and without CAP_DAC_OVERRIDE, NetworkManager cannot talk to OVS.

We should fix that differently by adding a nm-sudo D-Bus service that
can hand a file descriptor to NetworkManager.

This reverts commit 2e334f54b2.
This commit is contained in:
Thomas Haller 2021-02-12 13:06:13 +01:00
parent 801c41a11c
commit 4d66d6c7a1
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1 changed files with 3 additions and 1 deletions
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4
data/NetworkManager.service.in
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@ -14,7 +14,9 @@ ExecStart=@sbindir@/NetworkManager --no-daemon
Restart=on-failure
# NM doesn't want systemd to kill its children for it
KillMode=process
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_RAW CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_MODULE CAP_AUDIT_WRITE CAP_KILL CAP_SYS_CHROOT
# CAP_DAC_OVERRIDE: required to open /run/openvswitch/db.sock socket.
CapabilityBoundingSet=CAP_NET_ADMIN CAP_DAC_OVERRIDE CAP_NET_RAW CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_MODULE CAP_AUDIT_WRITE CAP_KILL CAP_SYS_CHROOT
ProtectSystem=true
ProtectHome=read-only