From 8b69bcd2154fdc7903aceca662e9694588c982f2 Mon Sep 17 00:00:00 2001 From: Ophestra Date: Wed, 26 Mar 2025 06:19:19 +0900 Subject: sandbox: cache kernel.cap_last_cap value Signed-off-by: Ophestra --- sandbox/overflow.go | 37 ------------------------------------- 1 file changed, 37 deletions(-) delete mode 100644 sandbox/overflow.go (limited to 'sandbox/overflow.go') diff --git a/sandbox/overflow.go b/sandbox/overflow.go deleted file mode 100644 index ebaad704..00000000 --- a/sandbox/overflow.go +++ /dev/null @@ -1,37 +0,0 @@ -package sandbox - -import ( - "bytes" - "log" - "os" - "strconv" - "sync" -) - -var ( - ofUid int - ofGid int - ofOnce sync.Once -) - -const ( - ofUidPath = "/proc/sys/kernel/overflowuid" - ofGidPath = "/proc/sys/kernel/overflowgid" -) - -func mustReadOverflow() { - if v, err := os.ReadFile(ofUidPath); err != nil { - log.Fatalf("cannot read %q: %v", ofUidPath, err) - } else if ofUid, err = strconv.Atoi(string(bytes.TrimSpace(v))); err != nil { - log.Fatalf("cannot interpret %q: %v", ofUidPath, err) - } - - if v, err := os.ReadFile(ofGidPath); err != nil { - log.Fatalf("cannot read %q: %v", ofGidPath, err) - } else if ofGid, err = strconv.Atoi(string(bytes.TrimSpace(v))); err != nil { - log.Fatalf("cannot interpret %q: %v", ofGidPath, err) - } -} - -func OverflowUid() int { ofOnce.Do(mustReadOverflow); return ofUid } -func OverflowGid() int { ofOnce.Do(mustReadOverflow); return ofGid } -- cgit v1.3.1