57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
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//go:build linux
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package aghtls
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import (
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"crypto/x509"
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"os"
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"path/filepath"
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"github.com/AdguardTeam/golibs/errors"
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"github.com/AdguardTeam/golibs/log"
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)
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func rootCAs() (roots *x509.CertPool) {
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// Directories with the system root certificates, which aren't supported by
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// Go's crypto/x509.
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dirs := []string{
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// Entware.
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"/opt/etc/ssl/certs",
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}
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roots = x509.NewCertPool()
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for _, dir := range dirs {
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dirEnts, err := os.ReadDir(dir)
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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continue
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}
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// TODO(a.garipov): Improve error handling here and in other places.
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log.Error("aghtls: opening directory %q: %s", dir, err)
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}
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var rootsAdded bool
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for _, de := range dirEnts {
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var certData []byte
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rootFile := filepath.Join(dir, de.Name())
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certData, err = os.ReadFile(rootFile)
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if err != nil {
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log.Error("aghtls: reading root cert: %s", err)
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} else {
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if roots.AppendCertsFromPEM(certData) {
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rootsAdded = true
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} else {
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log.Error("aghtls: could not add root from %q", rootFile)
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}
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}
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}
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if rootsAdded {
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return roots
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}
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}
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return nil
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}
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