1
0
mirror of https://github.com/go-gitea/gitea.git synced 2024-12-04 14:46:57 -05:00
gitea/vendor/github.com/prometheus/procfs/crypto.go
6543 12a1f914f4
Vendor Update Go Libs (#13166)
* update github.com/alecthomas/chroma v0.8.0 -> v0.8.1

* github.com/blevesearch/bleve v1.0.10 -> v1.0.12

* editorconfig-core-go v2.1.1 -> v2.3.7

* github.com/gliderlabs/ssh v0.2.2 -> v0.3.1

* migrate editorconfig.ParseBytes to Parse

* github.com/shurcooL/vfsgen to 0d455de96546

* github.com/go-git/go-git/v5 v5.1.0 -> v5.2.0

* github.com/google/uuid v1.1.1 -> v1.1.2

* github.com/huandu/xstrings v1.3.0 -> v1.3.2

* github.com/klauspost/compress v1.10.11 -> v1.11.1

* github.com/markbates/goth v1.61.2 -> v1.65.0

* github.com/mattn/go-sqlite3 v1.14.0 -> v1.14.4

* github.com/mholt/archiver v3.3.0 -> v3.3.2

* github.com/microcosm-cc/bluemonday 4f7140c49acb -> v1.0.4

* github.com/minio/minio-go v7.0.4 -> v7.0.5

* github.com/olivere/elastic v7.0.9 -> v7.0.20

* github.com/urfave/cli v1.20.0 -> v1.22.4

* github.com/prometheus/client_golang v1.1.0 -> v1.8.0

* github.com/xanzy/go-gitlab v0.37.0 -> v0.38.1

* mvdan.cc/xurls v2.1.0 -> v2.2.0

Co-authored-by: Lauris BH <lauris@nix.lv>
2020-10-16 01:06:27 -04:00

154 lines
3.5 KiB
Go
Vendored

// 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 (
"bufio"
"bytes"
"fmt"
"io"
"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) {
path := fs.proc.Path("crypto")
b, err := util.ReadFileNoStat(path)
if err != nil {
return nil, fmt.Errorf("error reading crypto %s: %s", path, err)
}
crypto, err := parseCrypto(bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("error parsing crypto %s: %s", path, err)
}
return crypto, nil
}
// parseCrypto parses a /proc/crypto stream into Crypto elements.
func parseCrypto(r io.Reader) ([]Crypto, error) {
var out []Crypto
s := bufio.NewScanner(r)
for s.Scan() {
text := s.Text()
switch {
case strings.HasPrefix(text, "name"):
// Each crypto element begins with its name.
out = append(out, Crypto{})
case text == "":
continue
}
kv := strings.Split(text, ":")
if len(kv) != 2 {
return nil, fmt.Errorf("malformed crypto line: %q", text)
}
k := strings.TrimSpace(kv[0])
v := strings.TrimSpace(kv[1])
// Parse the key/value pair into the currently focused element.
c := &out[len(out)-1]
if err := c.parseKV(k, v); err != nil {
return nil, err
}
}
if err := s.Err(); err != nil {
return nil, err
}
return out, nil
}
// parseKV parses a key/value pair into the appropriate field of c.
func (c *Crypto) parseKV(k, v string) error {
vp := util.NewValueParser(v)
switch k {
case "async":
// Interpret literal yes as true.
c.Async = v == "yes"
case "blocksize":
c.Blocksize = vp.PUInt64()
case "chunksize":
c.Chunksize = vp.PUInt64()
case "digestsize":
c.Digestsize = vp.PUInt64()
case "driver":
c.Driver = v
case "geniv":
c.Geniv = v
case "internal":
c.Internal = v
case "ivsize":
c.Ivsize = vp.PUInt64()
case "maxauthsize":
c.Maxauthsize = vp.PUInt64()
case "max keysize":
c.MaxKeysize = vp.PUInt64()
case "min keysize":
c.MinKeysize = vp.PUInt64()
case "module":
c.Module = v
case "name":
c.Name = v
case "priority":
c.Priority = vp.PInt64()
case "refcnt":
c.Refcnt = vp.PInt64()
case "seedsize":
c.Seedsize = vp.PUInt64()
case "selftest":
c.Selftest = v
case "type":
c.Type = v
case "walksize":
c.Walksize = vp.PUInt64()
}
return vp.Err()
}