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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2016 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package builtin
const systemTraceSummary = `allows using kernel tracing facilities`
const systemTraceBaseDeclarationSlots = `
system-trace:
allow-installation:
slot-snap-type:
- core
deny-auto-connection: true
`
const systemTraceConnectedPlugAppArmor = `
# Description: Can use kernel tracing facilities. This is restricted because it
# gives privileged access to all processes on the system and should only be
# used with trusted apps.
# For the bpf() syscall and manipulating bpf map types
capability sys_admin,
capability sys_resource,
# For kernel probes, etc
/sys/kernel/debug/kprobes/ r,
/sys/kernel/debug/kprobes/** r,
/sys/kernel/debug/tracing/ r,
/sys/kernel/debug/tracing/** rw,
# Access to kernel headers required for iovisor/bcc. This is typically
# detected with 'ls -l /lib/modules/$(uname -r)/build/' which is a symlink
# to /usr/src on Ubuntu and so only /usr/src is needed.
/usr/src/ r,
/usr/src/** r,
`
const systemTraceConnectedPlugSecComp = `
# Description: Can use kernel tracing facilities. This is restricted because it
# gives privileged access to all processes on the system and should only be
# used with trusted apps.
bpf
perf_event_open
`
func init() {
registerIface(&commonInterface{
name: "system-trace",
summary: systemTraceSummary,
implicitOnCore: true,
implicitOnClassic: true,
baseDeclarationSlots: systemTraceBaseDeclarationSlots,
connectedPlugAppArmor: systemTraceConnectedPlugAppArmor,
connectedPlugSecComp: systemTraceConnectedPlugSecComp,
})
}
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