Fix VPC restart with multi-CIDR networks: handle comma-separated CIDR…

[jeanvetorello]

#12621
… in NetworkVO.equals()

When a network has multiple CIDRs (e.g. '192.168.2.0/24,160.0.0.0/24'), NetworkVO.equals() passes the raw comma-separated string to NetUtils.isNetworkAWithinNetworkB() which expects a single CIDR, causing 'cidr is not formatted correctly' error during VPC restart with cleanup=true.

Extract only the first CIDR value before passing to NetUtils.

Description

This PR...

Types of changes

Bug fix (non-breaking change which fixes an issue)

Bug Severity

• Major

Screenshots (if appropriate):

How Has This Been Tested?

• Reproduced the issue on a CloudStack 4.21.0.0 environment with two public IP ranges
  on different VLANs assigned to the same VPC
• Applied the fix and confirmed VPC restart with cleanup=true completes successfully
• Verified unit tests pass for NetworkVO.equals() with both single and comma-separated CIDRs

How did you try to break this feature and the system with this change?

[sureshanaparti]

@blueorangutan package

[sureshanaparti]

@blueorangutan package

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 17.90%. Comparing base (d3e1976) to head (acf2228).

Files with missing lines	Patch %	Lines
...src/main/java/com/cloud/network/dao/NetworkVO.java	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main   #12622   +/-   ##
=========================================
  Coverage     17.90%   17.90%           
+ Complexity    16094    16093    -1     
=========================================
  Files          5938     5938           
  Lines        532864   532866    +2     
  Branches      65192    65192           
=========================================
+ Hits          95392    95395    +3     
  Misses       426793   426793           
+ Partials      10679    10678    -1     

Flag	Coverage Δ
uitests	3.67% <ø> (ø)
unittests	19.00% <0.00%> (+<0.01%)	⬆️

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[sureshanaparti]

@blueorangutan package

[Copilot]

Pull request overview

Fixes VPC restart failures for multi-CIDR networks by ensuring NetworkVO.equals() does not pass a raw comma-separated CIDR list into NetUtils.isNetworkAWithinNetworkB(), which expects a single CIDR.

Changes:

• Normalize cidr values in NetworkVO.equals() by extracting the first CIDR from comma-separated strings before comparing.

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[Copilot]

equals is using NetUtils.isNetworkAWithinNetworkB(...), which is not symmetric (A within B does not imply B within A). That means NetworkVO.equals can violate the Java equals contract, and it is also inconsistent with hashCode() (which is based only on id). Consider switching equals/hashCode to be id-based like other VOs, or (if CIDR-based equality is truly intended) make the comparison symmetric and update hashCode accordingly (e.g., based on the same normalized CIDR(s) and trafficType).

[Copilot]

Minor maintainability: getFirstValueFromCommaSeparatedString(...) is computed twice inline. Assign the normalized CIDRs to local variables before calling isNetworkAWithinNetworkB to avoid repeated splitting/trimming and make debugging/logging easier.

Suggested change

	return NetUtils.isNetworkAWithinNetworkB(
	com.cloud.utils.StringUtils.getFirstValueFromCommaSeparatedString(cidr),
	com.cloud.utils.StringUtils.getFirstValueFromCommaSeparatedString(that.cidr));
	final String normalizedCidr = com.cloud.utils.StringUtils.getFirstValueFromCommaSeparatedString(cidr);
	final String normalizedThatCidr = com.cloud.utils.StringUtils.getFirstValueFromCommaSeparatedString(that.cidr);
	return NetUtils.isNetworkAWithinNetworkB(normalizedCidr, normalizedThatCidr);

[DaanHoogland]

@blueorangutan package

[blueorangutan]

@DaanHoogland a [SL] Jenkins job has been kicked to build packages. It will be bundled with no SystemVM templates. I'll keep you posted as I make progress.