A read only ever looked at the manager's log services, and fell back to the
system's when the manager published none. A platform that keeps an event log
in both places had the second one invisible: an AMI MegaRAC keeps power unit
and thermal events in a chassis log that nothing read, 103 records that no
command could reach.
Clearing deliberately does not follow. It stays where it was, so a log that
only a read reaches is never destroyed by one, and clearing a platform that
keeps its only event log on the system still works.
The name test now ignores spacing, since a build that calls its post code log
"BIOS POST Code Log" was read as an event log and merged 2719 post codes in.
Reading an event log skipped every log service whose id or name said journal,
dump, post code, host logger or crash, on every implementation. Those names
are bmcweb's: the AMI and Lenovo bmcs call theirs SEL, EventLog, AuditLog and
PlatformLog. bmcweb does need the distinction, keeping its event log under the
system while a clear would destroy its dumps, so it gets a handler that names
the words and generic names none, reading whatever a platform publishes.
Generic added an UpdateParameters part to every multipart firmware push,
because the specification has one carried. Only the AMI firmware was seen to
insist on it, so name it in that handler and let generic send what the caller
passed.
A bmc behind a forward answers Activate Payload with the port it listens on
itself, and the advertised-port check refused that, so a console failed where
command traffic worked. The advertised port is never sent to, so the check now
applies only on the default port. A bmc on another port advertising a third one
is no longer refused outright, which nothing here could have served anyway.
The plugin connected to 623 whatever the address said, with a TODO in place of
the parsing. It now reads one as the redfish plugin does, minus the brackets,
which getaddrinfo rejects.
IpmiConsole keys its endpoint mapping on host and port so several bmcs behind
one address stay distinct, and unregisters only an entry it actually claimed.
_unixdomainhandler hardcoded /var/run/confluent/api.sock in four places and
derived its directory from a fifth. It is now threaded through SockApi like
the other bind settings, defaulting to the same path. That lets a service run
on a temp socket as an ordinary user, which is what a test needs.
The deadline was set when monitoring began, so a flash that kept
answering for longer than the grace period had already spent it by the
time the reboot it covers arrived, and reported a working update as a
failure.
A device holds its sensor records per lun and scopes the reservation the
same way, so a token taken on lun 0 can be refused for lun 1 with 0xc5.
The retry then took the same wrong token again without end.
Firmware for a supply or a fan matched no fragment and so was called
core, and nothing could ever answer for misc.
Only the collections that mean one thing are matched by url. A Storage
resource is the subsystem, so its firmware is the controller rather than
a drive, and a Processor is a cpu as readily as an accelerator, so that
one is decided by asking the processor what it is.
A member of a collective that cannot reach quorum stalls in the startup loop
until quorum returns, and there was nothing in that loop that noticed a
shutdown. That was survivable while SIGTERM raised SystemExit out of the
signal handler, since that escaped the loop from wherever it happened to be.
Having the event loop deliver the signal instead leaves the stop event set with
nobody reading it until quorum is reached, so stopping the service waits out
the systemd timeout and ends in a kill.
Check the event in the loop condition, and wait on it rather than sleeping
through it, so the answer comes in milliseconds rather than whenever quorum
returns. A service stopped at this point has served nothing yet, so it goes
straight to the same configuration flush the normal exit does.
pyghmi asks for this parameter with xraw_command and catches the completion
code for a bmc that does not have it, and folding aiohmi in renamed that call
to oldraw_command rather than raw_command, so the handler could no longer fire.
Answering the code out of the returned dictionary repaired the crash but kept
the call on the older contract, which is now the only one left in the tree.
Catch it again instead: raw_command puts the completion code on the exception
as ipmicode, and nothing here reads the payload of a reply that carries a code,
which is the one thing catching gives up.
No behaviour change, checked against the previous version over the same fake
session for a good reply, an empty one, 0x80 and 0xC9 with and without a stray
payload, four other completion codes, a timeout, a lost session and a reply
with no data at all: same return value, same exception type, text and ipmicode,
same bytes on the wire.
_read_device_sdr_lun negotiates the read size down when the bmc answers 0xCA,
but the size > 5 guard leaves a size of 5 alone, so a bmc that will not serve
5 bytes at once was asked the same question for ever. Give up once the
request cannot get any smaller, and once a header read would go under the 5
bytes the record length sits in, by falling through to the raise already
there.
The stale reservation retry could not end on its own either: it cleared the
id and left taking a new one to the top of the loop, which only reserves for
a partial read, so the very first request repeated unchanged. Take one where
the code is handled.
Completion codes 201 and 202 mean the chunk asked for was too big, and the
check for them sat after a call that raises, so a bmc that cannot serve 224
bytes at once failed the fru read rather than being asked for less.
The retry could not terminate either: chunksize // 2 + 2 is 4 for a chunksize
of 4, so the chunksize == 3 guard was unreachable and a bmc that kept refusing
would have been asked for 4 bytes for ever.
Completion code 203 on a sensor reading means the sensor is not present, which
is expected of an optional device, but the check for it sat after a call that
raises first, so one absent sensor ended the whole sensor sweep.
_supports_standard_ipv6 read rsp['code'] the same way, so it could only ever
answer True; a platform without the standard parameters raised instead. A
completion code is that platform's answer, while a timeout or a lost session is
not and must not be cached as one.
raw_command's docstring still described itself as the other call it was renamed
from, which is how these checks came to be written against the wrong contract.
raw_command raises on any nonzero completion code, so the 0xCA and 0xC5 checks
in get_sdr could not run: a bmc that will not return a whole record in one go,
or whose reservation went stale, failed the sensor load outright instead of
being retried. Read the code from the exception, which carries it.
The back off also had a fixed point, size // 2 + 2 being 3 for a size of 3, so
a bmc that kept refusing would have been asked the same question for ever.
Give up when the request cannot get any smaller. A header read cannot go
under 5 bytes either, since that is where the record length sits, so give up
there rather than parse a reply too short to index.
The stale reservation retry could not end on its own either: it cleared the id
and left taking a new one to the top of the loop, which only reserves for a
partial read. Take one where the code is handled.
The labels are worked out across the whole inventory, since a platform may give
every entry the same Name, so an entry that came back empty would be asked for a
name it does not have and take the naming of the others with it.
A parameter file that is not json, or that holds something other than an
object, reached the update as a raw parser message or as a TypeError from the
handler that unpacked it.
A writable directory only says the user could have created a file there, and
/tmp lets anyone do that. If the target exists, it has to be writable by the
requesting user too, or confluent would overwrite it as root.
get_user_name documents that it answers None when reading a slot fails, but
raw_command raises before the check that would return it, so that branch has
never run and one refused slot aborted the whole user list. Answer None where
the docstring says to, and let get_users drop the blanket except it grew to
work around it.
Only a completion code counts as the bmc answering about the slot. A timeout
carries the fabricated 0xffff from the session layer and a lost session carries
no code at all, and swallowing either of those reports a list truncated at the
point of failure as a complete one.
Some will not take an image without being told which kind it is, and the
only way to find out was to attempt an update and read the error, which
writes to the bmc before it gets that far.
Markus Hilger
Jarrod Johnson
Jarrod Johnson