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fix(agentcompat): root proc resource reads

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Co-authored-by: naiba/CloudCode <hi+cloudcode@nai.ba>
This commit is contained in:
naiba
2026-07-20 17:03:37 +00:00
co-authored by naiba/CloudCode
parent 57f9564ce1
commit e20197fdcc
2 changed files with 32 additions and 9 deletions
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integration/agentcompat/internal/process/proc.go
+24 -6
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@@ -15,8 +15,13 @@ import (
)
func readRSSBytes(pid int) (uint64, error) {
path := filepath.Join("/proc", strconv.Itoa(pid), "status")
file, err := os.Open(path)
path := filepath.Join(strconv.Itoa(pid), "status")
procRoot, err := os.OpenRoot("/proc")
if err != nil {
return 0, err
}
defer procRoot.Close()
file, err := procRoot.Open(path)
if err != nil {
return 0, err
}
@@ -73,8 +78,13 @@ func descendantPIDs(rootPID int) ([]int, error) {
}
func readParentPID(pid int) (int, error) {
path := filepath.Join("/proc", strconv.Itoa(pid), "stat")
data, err := os.ReadFile(path)
path := filepath.Join(strconv.Itoa(pid), "stat")
procRoot, err := os.OpenRoot("/proc")
if err != nil {
return 0, err
}
defer procRoot.Close()
data, err := procRoot.ReadFile(path)
if err != nil {
return 0, err
}
@@ -130,8 +140,16 @@ func parseSocketInode(target string) (uint64, bool) {
}
func listeningSocketInodes(pid int, protocol string) (map[uint64]struct{}, error) {
path := filepath.Join("/proc", strconv.Itoa(pid), "net", protocol)
file, err := os.Open(path)
if protocol != "tcp" && protocol != "tcp6" {
return nil, errors.New("unsupported proc network protocol")
}
path := filepath.Join(strconv.Itoa(pid), "net", protocol)
procRoot, err := os.OpenRoot("/proc")
if err != nil {
return nil, err
}
defer procRoot.Close()
file, err := procRoot.Open(path)
if err != nil {
return nil, err
}