Property:multid2 (avmcmd)

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BoxMatrix >> Shell-Commands >> multid2 (avmcmd)

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Name-Collision - multiple objects in this wiki use the name multid2! multid2 (avmcmd) Inter-CPU LAN management daemon on early 6490 Puma6 ATOM. multid2 (process) Inter-CPU LAN management daemon on early 6490 Puma6 ATOM. multid2 (watchdog) Inter-CPU LAN management daemon on early 6490 Puma6 ATOM.

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AVM-Command

Command:	multid2 (avmcmd)   -   type Exec	Wiki	Freetz	IPPF	whmf	AVM	Web
Location:	Shell-Commands >> AVM-Commands   -   Origin: AVM
Path:	Release: /sbin Lab+Rel: /sbin
Properties:	Size: 47.0k - 52.4k   -   Firmware: 6.20 - 6.64
Function:	Inter-CPU LAN management daemon on early 6490 Puma6 ATOM.

Goto:   Events  -  Source  -  Dependencies   -   Model-Matrix   -   Symbols   -   SMW-Browser

Details

multid2 is the Inter-CPU LAN management daemon on early 6490 Puma6 ATOM.
Besides managing the network on the ATOM it also performs time sync using chronyd.

Background: Up to 6490 fw 6.66 FRITZ!OS was nearly completely running on ARM, like in ARM-only 63xx Puma5 models.
The ATOM Intel added was nearly unused. Early Intel Puma6 SDK named it an application processor and did not use it at all.
Later AVM ported FRITZ!OS completely to ATOM, the ARM core is only used for the DOCSIS modem since then.

However, the USB-Host is connected to the ATOM, which has way better CPU performance than the ARM.
That is why AVM implemented all NAS and USB-Host functionality on the ATOM on early 6490 firmware.

This covers printserv and ftpd being proxied by tcpproxyd on ARM, tcpproxy_ctl on ATOM controling which ports.
The NAS webserver and the management of all USB related services was provided by nas_ctlmgr.
Since tcpproxyd does not support SSL nas_ctlmgr ran on a separate IP, which resolved from fritz.nas.
Stick+Surf is also splitted into avmstickandsurf.part1 on ARM and avmstickandsurf.part2 on ATOM, see avmstickandsurf.
For UMTS modems netttyd on ATOM multiplexes the TTY devices for netttym.ko on the ARM side.

The network on the ATOM on early 6490 firmware is managed by multid2.
IPv4 and IPv6 network addresses of the respective other side are gathered by avmipc_state.
Some ATOM ressources are mounted on the ARM side using nfs4.
For network throughput tests there's the remote controllable speedtestd on ATOM.

6490 fw 6.64:

# multid2 -?

usage: multid2 multid2 [options]

options:
  -?                 - print this help
  -f                 - run in forground. (NOTSET)
  -s                 - stop daemon. (NOTSET)
  -p STRING          - Pidfile. ("/var/run/multid2.pid")
  -I                 - send multid2 a SIGHUP. (NOTSET)
  -D STRING          - switch debug logs on. (FUNC)

start server:   multid2
stop server :   multid2 -s

Events

Daily updated index of AVM-Events and AVMIPC-Datastore nodes affecting this command. Last update: 2023-12-10 05:13 GMT.
The owners of Event-Sinks and Event-Sources are manual research, which may be incomplete or even wrong.
A * in the Mod column marks info from Supportdata-Probes, which will always stay incomplete.
A ** in the Mod column marks info from Supportdata2 probes, which by their nature will stay way more incomplete.
A - in the Mod column marks manual research, the Firmware then shows where the item occurs, not the Relation.

Relation	Typ	Object	Mod	Firmware	Info	Origin
Endpoint	sock	me_multid2-pcp-($num).ctl	1*	6.50 - 6.66	avmipc endpoint of libavmpcp.so for multid2	AVM
1 event relation for this command

multid2 acquires the IP addresses of the ARM side from these AVMIPC-States:

• ARM_IPV4_LAN
• ARM_IPV6_GUA
• ARM_IPV6_ULA

multid2 provides the IP addresses of the ATOM side by these AVMIPC-States:

• ATOM_IPV4_LAN
• ATOM_IPV6_GUA
• ATOM_IPV6_ULA

Source

The names of source files compiled into an executable often help to understand function blocks (and show gaps in the docs).
fw 6.64 source files:

$ strings /sbin/multid2 | grep -e '\.c$' -e '\.cpp$'

multid2.c
staticroutes.c
staticroutes6.c
chronyctl.c
sntp.c  

Dependencies

Daily updated index of all dependencies of this command. Last update: 2024-04-20 07:33 GMT.
A * in the Mod column marks info from Supportdata-Probes, which will always stay incomplete.

Relation	Typ	Object	Mod	Firmware	Info	Origin
Runs as	proc	multid2 (process)	1*	6.08 - 6.66	Inter-CPU LAN management daemon on early 6490 Puma6 ATOM.	AVM
Registers	wdog	multid2 (watchdog)	1*	6.24 - 6.66	Inter-CPU LAN management daemon on early 6490 Puma6 ATOM.	AVM
Serving	sock	me_multid2-pcp-($num).ctl	1*	6.50 - 6.66	avmipc endpoint of libavmpcp.so for multid2	AVM
Serving	sock	me_multid2.ctl	1*	6.08 - 6.66	avmipc endpoint of multid2	AVM
Depends on	lib	libar7cfg.so	2	6.20 - 6.64	TFFS-Configuration API to ar7.cfg and many more.	AVM
Depends on	lib	libavm_event.so	2	6.50 - 6.64	AVM-Events management API	AVM
Depends on	lib	libavmcipher.so	2	6.50 - 6.64	AES / DES / Rijndael encryption / decryption.	AVM
Depends on	lib	libavmcsock.so	2	6.20 - 6.64	Networking, I/O and helper functions	AVM
Depends on	lib	libavmhmac.so	2	6.50 - 6.64	HMAC / SHA / MD5 hashing.	AVM
Depends on	lib	libavmpcp.so	2	6.50 - 6.64	Port Control Protocol (PCP) API library	AVM
Depends on	lib	libboxlib.so	2	6.20 - 6.64	Box status, logging and statistics functions	AVM
Depends on	lib	libc.so	2	6.20 - 6.64	Standard C library	Linux
Depends on	lib	libdl.so	2	6.20 - 6.64	Dynamic linking library	Linux
Depends on	lib	libdputil.so	2	6.50 - 6.64	DataPipe / packet utilities	AVM
Depends on	lib	libewnwled.so	2	6.50 - 6.64	LED event helper functions	AVM
Depends on	lib	libewnwlinux.so	2	6.20 - 6.64	Linux networking functions	AVM
Depends on	lib	libewnwnet.so	2	6.20 - 6.64	Internet helper functions	AVM
Depends on	lib	libgcc_s.so	2	6.20 - 6.64	GCC low-level runtime library	Linux
Depends on	lib	libled2.so	2	6.50 - 6.64	LED API - second+third generation	AVM
Depends on	lib	libpthread.so	2	6.20 - 6.64	POSIX threading library	Linux
Depends on	lib	librt.so	2	6.50 - 6.64	POSIX realtime extensions library	Linux
Depends on	lib	libwdt.so	2	6.20 - 6.64	AVM-Watchdogs management API	AVM
Depends on	lib	libwebsrv.so	2	6.50 - 6.64	HTTP / HTTPS webserver and tools.	AVM
23 dependencies for this command

Model-Matrix

Daily updated index of the presence, path and size of this command for each model. Last update: 2024-04-20 05:16 GMT.
Showing all models using this command. Click any column header (click-wait-click) to sort the list by the respective data.
The (main/scrpn/boot/arm/prx/atom) label in the Model column shows which CPU is meant for models with multiple Linux instances.
Note that this list is merged from Firmware-Probes of all known AVM firmware for a model, including Recovery.exe and Labor-Files.

Model	Firmware	Path	Size
FRITZ!Box 6490 Cable (arm)	6.20 - 6.64	/sbin	47.0k - 52.4k
FRITZ!Box 6490 Cable (atom)	6.20 - 6.64	/sbin	47.0k - 52.4k
2 models use this command

Symbols

Daily updated index of all symbols of this command. Last update: 2024-04-20 07:33 GMT.

Firmware	Symbol
0 symbols for this command

SMW-Browser

Property:multid2 (avmcmd)

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