feat(profiles): initial snap support.

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Alexandre Pujol 2022-07-21 22:40:06 +01:00
parent 177d27d94c
commit 7aca29b244
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8 changed files with 297 additions and 0 deletions

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# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{snap/snapd/[0-9]*/,}{usr/,}bin/snap
profile snap @{exec_path} {
include <abstractions/base>
include <abstractions/nameservice-strict>
include <abstractions/dbus-session-strict>
include <abstractions/consoles>
@{exec_path} mrix,
/snap/{,**} rw,
/snap/snapd/[0-9]*/usr/lib/snapd/snap-confine rPx,
/snap/snapd/[0-9]*/usr/lib/snapd/snap-seccomp rPx,
/snap/snapd/[0-9]*/usr/lib/snapd/snapd r,
/etc/fstab r,
/var/lib/snapd/{,**} rwk,#
owner @{HOME}/snap/{,**} rw,
owner @{run}/user/@{uid}/.mutter-Xwaylandauth.[0-9A-Z]* r,
@{run}/snapd.socket rw,
@{sys}/kernel/mm/transparent_hugepage/hpage_pmd_size r,
@{sys}/kernel/security/apparmor/features/ r,
owner @{PROC}/@{pids}/mountinfo r,
@{PROC}/@{pids}/cgroup r,
@{PROC}/cgroups r,
@{PROC}/cmdline r,
@{PROC}/sys/kernel/random/boot_id r,
@{PROC}/sys/kernel/random/uuid r,
@{PROC}/sys/kernel/seccomp/actions_avail r,
@{PROC}/version r,
deny @{user_share_dirs}/gvfs-metadata/* r,
include if exists <local/snap>
}

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# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{snap/snapd/[0-9]*/,}{usr/,}lib/snapd/snap-discard-ns
profile snap-discard-ns @{exec_path} {
include <abstractions/base>
capability setgid,
@{exec_path} mr,
/ r,
@{run}/ r,
@{run}/snapd/ r,
@{run}/snapd/lock/ r,
@{run}/snapd/lock/*.lock rwk,
@{run}/snapd/ns/ r,
@{run}/snapd/ns/* rw,
include if exists <local/snap-discard-ns>
}

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# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{snap/snapd/[0-9]*/,}{usr/,}lib/snapd/snap-failure
profile snap-failure @{exec_path} {
include <abstractions/base>
@{exec_path} mr,
include if exists <local/snap-failure>
}

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# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{snap/snapd/[0-9]*/,}{usr/,}lib/snapd/snap-seccomp
profile snap-seccomp @{exec_path} {
include <abstractions/base>
include <abstractions/consoles>
include <abstractions/nameservice-strict>
network netlink raw,
@{exec_path} mr,
/snap/snapd/[0-9]*/usr/lib/snapd/snap-seccomp r,
/var/lib/snapd/seccomp/bpf/{,**} rw,
@{sys}/kernel/mm/transparent_hugepage/hpage_pmd_size r,
deny @{user_share_dirs}/gvfs-metadata/* r,
owner @{PROC}/@{pids}/mountinfo r,
include if exists <local/snap-seccomp>
}

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@ -0,0 +1,31 @@
# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{snap/snapd/[0-9]*/,}{usr/,}lib/snapd/snap-update-ns
profile snap-update-ns @{exec_path} {
include <abstractions/base>
capability sys_admin,
capability sys_chroot,
@{exec_path} mr,
/var/lib/snapd/mount/{,*} r,
@{run}/snapd/lock/*.lock rwk,
@{run}/snapd/ns/{,**} rw,
@{sys}/fs/cgroup/{,**/} r,
@{sys}/kernel/mm/transparent_hugepage/hpage_pmd_size r,
@{PROC}/@{pids}/cgroup r,
@{PROC}/cmdline r,
@{PROC}/version r,
include if exists <local/snap-update-ns>
}

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@ -0,0 +1,140 @@
# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{snap/snapd/[0-9]*/,}{usr/,}lib/snapd/snapd
profile snapd @{exec_path} {
include <abstractions/base>
include <abstractions/authentication>
include <abstractions/dbus-strict>
include <abstractions/disks-write>
include <abstractions/fontconfig-cache-write>
include <abstractions/fonts>
include <abstractions/nameservice-strict>
include <abstractions/ssl_certs>
capability audit_write,
capability dac_override,
capability dac_read_search,
capability net_admin,
capability setgid,
capability setuid,
capability sys_admin,
capability sys_resource,
network inet stream,
network inet6 stream,
network inet dgram,
network inet6 dgram,
network netlink raw,
mount fstype=squashfs /dev/loop[0-9]* -> /tmp/syscheck-mountpoint-[0-9]*/,
umount /tmp/syscheck-mountpoint-[0-9]*/,
umount /snap/*/[0-9]*/,
ptrace (read) peer=unconfined,
dbus send bus=system path=/org/freedesktop/timedate1
interface=org.freedesktop.DBus.Properties
member=Get
peer=(name=org.freedesktop.timedate1),
dbus send bus=system path=/org/freedesktop/PolicyKit1/Authority
interface=org.freedesktop.PolicyKit1.Authority
member=CheckAuthorization
peer=(name=org.freedesktop.PolicyKit1),
@{exec_path} mr,
/{usr/,}{s,}bin/apparmor_parser rPx,
/{usr/,}{s,}bin/runuser rCx -> runuser,
/{usr/,}bin/{,ba,da}sh rix,
/{usr/,}bin/cp rix,
/{usr/,}bin/gzip rix,
/{usr/,}bin/mount rix,
/{usr/,}bin/sync rix,
/{usr/,}bin/systemctl rix,
/{usr/,}bin/systemd-detect-virt rPx,
/{usr/,}bin/tar rix,
/{usr/,}bin/udevadm rPx,
/{usr/,}bin/umount rix,
/{usr/,}bin/unsquashfs rix,
/{usr/,}bin/update-desktop-database rPx,
/snap/snapd/[0-9]*/lib/@{multiarch}/** mr,
/snap/snapd/[0-9]*/lib/@{multiarch}/ld-*.so rix,
/snap/snapd/[0-9]*/usr/bin/snap rPx,
/snap/snapd/[0-9]*/usr/lib/snapd/snap-discard-ns rPx,
/snap/snapd/[0-9]*/usr/lib/snapd/snap-seccomp rPx,
/snap/snapd/[0-9]*/usr/lib/snapd/snap-update-ns rPx,
/snap/snapd/[0-9]*/usr/lib/snapd/snapd rix,
/snap/snapd/[0-9]*/usr/bin/xdelta3 rix, # TODO: rPx ?
/usr/share/dbus-1/{system,session}.d/{,snapd*} r,
/usr/share/dbus-1/services/*snap* r,
/usr/share/polkit-1/actions/{,**/} r,
/etc/dbus-1/system.d/{,**/} r,
/etc/fstab r,
/etc/modprobe.d/{,**/} r,
/etc/modules-load.d/{,**/} r,
/etc/systemd/system/{,**/} r,
/etc/systemd/system/snap* rw,
/etc/systemd/user/{,**/} r,
/etc/systemd/user/snap* rw,
/etc/udev/rules.d/{,*snap*} rw,
/snap/{,**} rw,
/var/cache/snapd/{,**} rwk,
/var/lib/snapd/{,**} rwk,
/var/snap/{,**} rw,
/var/cache/apparmor/{,*/} r,
/var/cache/apparmor/*/snap* rw,
/tmp/ r,
/tmp/syscheck-mountpoint-[0-9]*/{,**} rw,
/tmp/syscheck-squashfs-[0-9]* rw,
/tmp/read-file[0-9]*/{,**} rw,
owner @{HOME}/ r,
owner @{HOME}/snap/{,**} rw,
owner @{run}/mount/ rw,
owner @{run}/mount/utab{,.*} rw,
owner @{run}/mount/utab.lock wk,
owner @{run}/user/{,@{uid}/} r,
owner @{run}/user/snap.*/{,**} rw,
@{run}/snapd-snap.socket rw,
@{run}/snapd.socket rw,
@{run}/snapd/lock/core[0-9]*.lock rwk,
@{run}/systemd/notify rw,
@{run}/systemd/private rw,
@{sys}/fs/cgroup/{,*/} r,
@{sys}/fs/cgroup/system.slice/{,**/} r,
@{sys}/fs/cgroup/user.slice/ r,
@{sys}/fs/cgroup/user.slice/user-@{uid}.slice/**/ r,
@{sys}/kernel/mm/transparent_hugepage/hpage_pmd_size r,
@{sys}/kernel/security/apparmor/features/ r,
@{sys}/kernel/security/apparmor/profiles r,
owner @{PROC}/@{pids}/mountinfo r,
@{PROC}/@{pids}/cgroup r,
@{PROC}/@{pids}/stat r,
@{PROC}/cgroups r,
@{PROC}/cmdline r,
@{PROC}/sys/kernel/random/boot_id r,
@{PROC}/sys/kernel/seccomp/actions_avail r,
@{PROC}/version r,
/dev/loop-control rw,
include if exists <local/snapd>
}

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@ -128,7 +128,13 @@ s3fs complain
scrcpy complain
sftp-server complain
slirp4netns attach_disconnected,complain
snap complain
snap-device-helper complain
snap-discard-ns complain
snap-failure complain
snap-seccomp complain
snap-update-ns complain
snapd complain
spice-vdagent complain
spice-vdagentd attach_disconnected,complain
splunkforwarder complain