Date: Sun, 17 Sep 2023 14:19:06 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 273902] Backwards-incompatible size change in struct tcp_info Message-ID: <bug-273902-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273902 Bug ID: 273902 Summary: Backwards-incompatible size change in struct tcp_info Product: Base System Version: 14.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org struct tcp_info, which can be retrieved via getsockopt with TCP_INFO , chan= ges between OS versions. However, the struct has a fixed size for backwards-compatibility; a program compiled for stable/13 should be able to= run on stable/14 and successfully retrieve the struct; it simply won't know abo= ut new fields. Unfortunately, two recent changes to main accidentally enlarged the structu= re: 945f9a7cc9dcc071bfcc702748fbbb11087ae773 enlarged it by 12 bytes 22c81cc51636cfebe94e0979eb31556d87775938 enlarged it by 4 bytes Meanwhile, two other recent changes added new fields but were careful to maintain a fixed size: dc485b968ddeb and 3708c3d370f26. We should reduce the padding field to compensate, and MFC before 14.0-RELEA= SE. --=20 You are receiving this mail because: You are the assignee for the bug.=
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