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# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.
from sos.plugins import Plugin, RedHatPlugin, DebianPlugin, UbuntuPlugin
import json
class Ebpf(Plugin, RedHatPlugin, DebianPlugin, UbuntuPlugin):
"""eBPF tool
"""
plugin_name = 'ebpf'
profiles = ('system', 'kernel', 'network')
def get_bpftool_prog_ids(self, prog_json):
out = []
try:
prog_data = json.loads(prog_json)
except Exception as e:
self._log_info("Could not parse bpftool prog list as JSON: %s" % e)
return out
for item in range(len(prog_data)):
if "id" in prog_data[item]:
out.append(prog_data[item]["id"])
return out
def get_bpftool_map_ids(self, map_json):
out = []
try:
map_data = json.loads(map_json)
except Exception as e:
self._log_info("Could not parse bpftool map list as JSON: %s" % e)
return out
for item in range(len(map_data)):
if "id" in map_data[item]:
out.append(map_data[item]["id"])
return out
def setup(self):
# collect list of eBPF programs and maps and their dumps
progs = self.collect_cmd_output("bpftool -j prog list")
for prog_id in self.get_bpftool_prog_ids(progs['output']):
for dumpcmd in ["xlated", "jited"]:
self.add_cmd_output("bpftool prog dump %s id %s" %
(dumpcmd, prog_id))
maps = self.collect_cmd_output("bpftool -j map list")
for map_id in self.get_bpftool_map_ids(maps['output']):
self.add_cmd_output("bpftool map dump id %s" % map_id)
self.add_cmd_output([
# collect list of eBPF programs and maps and their dumps
# in human readable form
"bpftool prog list",
"bpftool map list",
# Iterate over all cgroups and list all attached programs
"bpftool cgroup tree",
# collect list of bpf program attachments in the kernel
# networking subsystem
"bpftool net list"
])
# Capture list of bpf program attachments from namespaces
ip_netns = self.exec_cmd("ip netns")
cmd_prefix = "ip netns exec "
if ip_netns['status'] == 0:
out_ns = []
for line in ip_netns['output'].splitlines():
# If there's no namespaces, no need to continue
if line.startswith("Object \"netns\" is unknown") \
or line.isspace() \
or line[:1].isspace():
continue
out_ns.append(line.partition(' ')[0])
for namespace in out_ns:
ns_cmd_prefix = cmd_prefix + namespace + " "
self.add_cmd_output(ns_cmd_prefix + "bpftool net list")
# vim: set et ts=4 sw=4 :