add IMPULSE SNMP-card for 1-10kVA UPS in NUT

[seregega]

Card name: IMPULSE SNMP-card for 1-10kVA UPS
Prod. code: CNASNMP1
FW version: 1110.5.200.1.10.00

add: impuls_magnetic in snmp-ups list
fix: upsload oid

Signed-off-by: Sergei Kartavtsev [email protected]

General points

• Described the changes in the PR submission or a separate issue, e.g.
  known published or discovered protocols, applicable hardware (expected
  compatible and actually tested/developed against), limitations, etc.

• There may be multiple commits in the PR, aligned and commented with
  a functional change. Notably, coding style changes better belong in a
  separate PR, but certainly in a dedicated commit to simplify reviews
  of "real" changes in the other commits. Similarly for typo fixes in
  comments or text documents.

• Please star NUT on GitHub, this helps with sponsorships! ;)

Frequent "underwater rocks" for driver addition/update PRs

• Revised existing driver families and added a sub-driver if applicable
  (nutdrv_qx, usbhid-ups...) or added a brand new driver in the other
  case.

• Did not extend obsoleted drivers with new hardware support features
  (notably blazer and other single-device family drivers for Qx protocols,
  except the new nutdrv_qx which should cover them all).

• For updated existing device drivers, bumped the DRIVER_VERSION macro
  or its equivalent.

• For USB devices (HID or not), revised that the driver uses unique
  VID/PID combinations, or raised discussions when this is not the case
  (several vendors do use same interface chips for unrelated protocols).

• For new USB devices, built and committed the changes for the
  scripts/upower/95-upower-hid.hwdb file

• Proposed NUT data mapping is aligned with existing docs/nut-names.txt
  file. If the device exposes useful data points not listed in the file, the
  experimental.* namespace can be used as documented there, and discussion
  should be raised on the NUT Developers mailing list to standardize the new
  concept.

• Updated data/driver.list.in if applicable (new tested device info)

Frequent "underwater rocks" for general C code PRs

• Did not "blindly assume" default integer type sizes and value ranges,
  structure layout and alignment in memory, endianness (layout of bytes and
  bits in memory for multi-byte numeric types), or use of generic int where
  language or libraries dictate the use of size_t (or ssize_t sometimes).

• Progress and errors are handled with upsdebugx(), upslogx(),
  fatalx() and related methods, not with direct printf() or exit().
  Similarly, NUT helpers are used for error-checked memory allocation and
  string operations (except where customized error handling is needed,
  such as unlocking device ports, etc.)

• Coding style (including whitespace for indentations) follows precedent
  in the code of the file, and examples/guide in docs/developers.txt file.

• For newly added files, the Makefile.am recipes were updated and the
  make distcheck target passes.

General documentation updates

• Updated docs/acknowledgements.txt (for vendor-backed device support)

• Added or updated manual page information in docs/man/*.txt files
  and corresponding recipe lists in docs/man/Makefile.am for new pages

• Passed make spellcheck, updated spell-checking dictionary in the
  docs/nut.dict file if needed (did not remove any words -- the make
  rule printout in case of changes suggests how to maintain it).

Additional work may be needed after posting this PR

• Propose a PR for NUT DDL with detailed device data dumps from tests
  against real hardware (the more models, the better).

• Address NUT CI farm build failures for the PR: testing on numerous
  platforms and toolkits can expose issues not seen on just one system.

• Revise suggestions from LGTM.COM analysis about "new issues" with
  the changed codebase.

[jimklimov]

• Why "impuls" in the file names and not "impulse"?
• Can you please add a man page, perhaps pointing to vendor and their MIB if published?
• If this is a vendor-backed contribution, feel free to add the company info into docs/acknowledgements.txt

[jimklimov]

2-digit minor version, e.g. 1.00 please

[jimklimov]

• I think the first set of years (2002-2006) with no name can go away
• Your own (C) is likely just 2024?
• Please align indentation with other lines

[jimklimov]

Please wrap into 2-3 lines to fit in ~76 char columns

[jimklimov]

This specific driver was not sponsored by MGE :) Was it by the makers of Impuls(e)?

[jimklimov]

Can remove the commented-away lines originating from ietf-mib

[jimklimov]

Suggested change

	&impuls_magnetic, /* This struct comes from : impuls_magnetic.c for fix upsload oid and works only manualy selected*/
	&impuls_magnetic, /* This struct comes from : impuls_magnetic.c for fixed upsload oid; based on ietf MIB and works only when manually selected*/

[jimklimov]

Is there a specific SYSOID for Impulse MIB, so we could auto-detect that the SNMP server is this device (and so it could be listed at higher priority than &ietf in snmp-ups.c file, and not require "manual configuration" to be used).