openwrt / openwrt/packages

ddns-scripts: dynamic_dns_functions.sh and sanitizing variable DOMAIN for comma-separated domains

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Description

Maintainer: @nmav or @feckert (?)
Environment: (mvebu, Linksys WRT1900ACS, OpenWrt 21.02.1)

Description:
The sanitizing of "DOMAIN" doesn't allow a "," for comma-separating domains, which the Swedish issuer "Loopia" supports. Adding a "," to the (regex) allowed chars for DOMAIN makes it work as (I) expected, and I can now (like I did back on LEDE 17.x) have only 1 ddns defined and have all domains updated.

row 76-77:
# domains can have * for wildcard. "-" must be the last character
DNS_CHARSET_DOMAIN="[@a-zA-Z0-9._*-]" --> DNS_CHARSET_DOMAIN="[@a-zA-Z0-9.,_*-]"

Could this be the default? to have "," added?

PS.
I also tried doing a "custom" ddns configuration using the same address as the Loopia ddns template but that failed by "update_url not found", dunno why as it was most certainly set.

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at dynamic_dns_functions.sh around rows 76-77 and inspect the DOMAIN sanitization and its callers. Confirm that comma-separated domains are accepted and that a Loopia DDNS configuration reaches the update path without triggering validation or the reported “update_url not found” error.

Written by the indexing model from the issue text.

Assessment

Tech stack
shell
Domain
networking
Issue type
Bug
Difficulty
1/5
Estimated time
Under an hour
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
45/100

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