131 lines
3.5 KiB
Go
131 lines
3.5 KiB
Go
// Copyright 2019 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package procfs
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/prometheus/procfs/internal/util"
|
|
)
|
|
|
|
// Crypto holds info parsed from /proc/crypto.
|
|
type Crypto struct {
|
|
Alignmask *uint64
|
|
Async bool
|
|
Blocksize *uint64
|
|
Chunksize *uint64
|
|
Ctxsize *uint64
|
|
Digestsize *uint64
|
|
Driver string
|
|
Geniv string
|
|
Internal string
|
|
Ivsize *uint64
|
|
Maxauthsize *uint64
|
|
MaxKeysize *uint64
|
|
MinKeysize *uint64
|
|
Module string
|
|
Name string
|
|
Priority *int64
|
|
Refcnt *int64
|
|
Seedsize *uint64
|
|
Selftest string
|
|
Type string
|
|
Walksize *uint64
|
|
}
|
|
|
|
// Crypto parses an crypto-file (/proc/crypto) and returns a slice of
|
|
// structs containing the relevant info. More information available here:
|
|
// https://kernel.readthedocs.io/en/sphinx-samples/crypto-API.html
|
|
func (fs FS) Crypto() ([]Crypto, error) {
|
|
data, err := ioutil.ReadFile(fs.proc.Path("crypto"))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error parsing crypto %s: %s", fs.proc.Path("crypto"), err)
|
|
}
|
|
crypto, err := parseCrypto(data)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error parsing crypto %s: %s", fs.proc.Path("crypto"), err)
|
|
}
|
|
return crypto, nil
|
|
}
|
|
|
|
func parseCrypto(cryptoData []byte) ([]Crypto, error) {
|
|
crypto := []Crypto{}
|
|
|
|
cryptoBlocks := bytes.Split(cryptoData, []byte("\n\n"))
|
|
|
|
for _, block := range cryptoBlocks {
|
|
var newCryptoElem Crypto
|
|
|
|
lines := strings.Split(string(block), "\n")
|
|
for _, line := range lines {
|
|
if strings.TrimSpace(line) == "" || line[0] == ' ' {
|
|
continue
|
|
}
|
|
fields := strings.Split(line, ":")
|
|
key := strings.TrimSpace(fields[0])
|
|
value := strings.TrimSpace(fields[1])
|
|
vp := util.NewValueParser(value)
|
|
|
|
switch strings.TrimSpace(key) {
|
|
case "async":
|
|
b, err := strconv.ParseBool(value)
|
|
if err == nil {
|
|
newCryptoElem.Async = b
|
|
}
|
|
case "blocksize":
|
|
newCryptoElem.Blocksize = vp.PUInt64()
|
|
case "chunksize":
|
|
newCryptoElem.Chunksize = vp.PUInt64()
|
|
case "digestsize":
|
|
newCryptoElem.Digestsize = vp.PUInt64()
|
|
case "driver":
|
|
newCryptoElem.Driver = value
|
|
case "geniv":
|
|
newCryptoElem.Geniv = value
|
|
case "internal":
|
|
newCryptoElem.Internal = value
|
|
case "ivsize":
|
|
newCryptoElem.Ivsize = vp.PUInt64()
|
|
case "maxauthsize":
|
|
newCryptoElem.Maxauthsize = vp.PUInt64()
|
|
case "max keysize":
|
|
newCryptoElem.MaxKeysize = vp.PUInt64()
|
|
case "min keysize":
|
|
newCryptoElem.MinKeysize = vp.PUInt64()
|
|
case "module":
|
|
newCryptoElem.Module = value
|
|
case "name":
|
|
newCryptoElem.Name = value
|
|
case "priority":
|
|
newCryptoElem.Priority = vp.PInt64()
|
|
case "refcnt":
|
|
newCryptoElem.Refcnt = vp.PInt64()
|
|
case "seedsize":
|
|
newCryptoElem.Seedsize = vp.PUInt64()
|
|
case "selftest":
|
|
newCryptoElem.Selftest = value
|
|
case "type":
|
|
newCryptoElem.Type = value
|
|
case "walksize":
|
|
newCryptoElem.Walksize = vp.PUInt64()
|
|
}
|
|
}
|
|
crypto = append(crypto, newCryptoElem)
|
|
}
|
|
return crypto, nil
|
|
}
|