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Refine PXE/HTTP log

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Add logs for ignored boot requests, suppress discovery warning for known uuids,
and generally throttle logging these to once per mac address per minute.
This commit is contained in:
Jarrod Johnson 2021-08-11 08:14:32 -04:00
parent 6b28877828
commit 034eca3bb0
2 changed files with 32 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
confluent_server/confluent/discovery/core.py
View File

@ -1090,7 +1090,7 @@ def discover_node(cfg, handler, info, nodename, manual):
del unknown_info[info['hwaddr']]
info['discostatus'] = 'identified'
dp = cfg.get_node_attributes(
[nodename], ('discovery.policy',
[nodename], ('discovery.policy', 'id.uuid',
'pubkeys.tls_hardwaremanager'))
policy = dp.get(nodename, {}).get('discovery.policy', {}).get(
'value', None)
@ -1163,10 +1163,19 @@ def discover_node(cfg, handler, info, nodename, manual):
except KeyError:
pass
return True
log.log({'info': 'Detected {0}, but discovery.policy is not set to a '
'value allowing discovery (open or permissive)'.format(
nodename)})
info['discofailure'] = 'policy'
if info['handler'] == pxeh:
olduuid = dp.get(nodename, {}).get('discovery.policy', {}).get(
'value', None)
if olduuid.lower() != info['uuid']:
log.log({'info': 'Detected {0}, but discovery.policy is not set to a '
'value allowing discovery (open, permissive, or pxe)'.format(
nodename)})
info['discofailure'] = 'policy'
else:
log.log({'info': 'Detected {0}, but discovery.policy is not set to a '
'value allowing discovery (open or permissive)'.format(
nodename)})
info['discofailure'] = 'policy'
return False

22
confluent_server/confluent/discovery/protocols/pxe.py
View File

@ -34,6 +34,7 @@ import eventlet.green.socket as socket
import eventlet.green.select as select
import netifaces
import struct
import time
import traceback
libc = ctypes.CDLL(ctypes.util.find_library('c'))
@ -41,6 +42,8 @@ libc = ctypes.CDLL(ctypes.util.find_library('c'))
iphdr = b'\x45\x00\x00\x00\x00\x00\x00\x00\x40\x11\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff'
constiphdrsum = b'\x85\x11'
udphdr = b'\x00\x43\x00\x44\x00\x00\x00\x00'
ignoremacs = {}
ignoredisco = {}
def _ipsum(data):
currsum = 0
@ -392,10 +395,9 @@ def snoop(handler, protocol=None):
'architecture': disco['arch'],
'netinfo': {'ifidx': idx, 'recvip': recv, 'txid': txid},
'services': ('pxe-client',)}
if disco['uuid']: #TODO(jjohnson2): need to explictly check for
# discover, so that the parser can go ahead and
# parse the options including uuid to enable
# ACK
if (disco['uuid']
and time.time() > ignoredisco.get(netaddr, 0) + 60):
ignoredisco[netaddr] = time.time()
handler(info)
consider_discover(info, rqinfo, net4, cfg, rqv)
except Exception as e:
@ -457,6 +459,11 @@ def check_reply(node, info, packet, sock, cfg, reqview):
cfd = cfg.get_node_attributes(node, ('deployment.*'))
profile = get_deployment_profile(node, cfg, cfd)
if not profile:
if time.time() > ignoremacs.get(info['hwaddr'], 0) + 90:
ignoremacs[info['hwaddr']] = time.time()
log.log({'info': 'Ignoring boot attempt by {0} no deployment profile specified (uuid {1}, hwaddr {2})'.format(
node, info['uuid'], info['hwaddr']
)})
return
myipn = info['netinfo']['recvip']
myipn = socket.inet_aton(myipn)
@ -638,6 +645,13 @@ def consider_discover(info, packet, sock, cfg, reqview):
check_reply(uuidmap[info['uuid']], info, packet, sock, cfg, reqview)
elif packet.get(53, None) == b'\x03':
ack_request(packet, reqview, info)
elif info.get('uuid', None) and info.get('hwaddr', None):
if time.time() > ignoremacs.get(info['hwaddr'], 0) + 90:
ignoremacs[info['hwaddr']] = time.time()
log.log(
{'info': 'No node matches boot attempt from uuid {0} or hardware address {1}'.format(
info['uuid'], info['hwaddr']
)})
if __name__ == '__main__':