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author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2019-11-13 20:19:54 +0100 |
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committer | GitHub <noreply@github.com> | 2019-11-13 20:19:54 +0100 |
commit | 225f22b9d5dfd0d1582a56530142fe8ffb960a91 (patch) | |
tree | 4dcc994bb1e48602e5be5f42b7599abdc0cc7937 /vendor/github.com/prometheus/procfs/crypto.go | |
parent | 15220af08ce2346686e54851a6d498ec573e950c (diff) | |
parent | 6003033adae775f1d725b05231a246a4462ae669 (diff) | |
download | podman-225f22b9d5dfd0d1582a56530142fe8ffb960a91.tar.gz podman-225f22b9d5dfd0d1582a56530142fe8ffb960a91.tar.bz2 podman-225f22b9d5dfd0d1582a56530142fe8ffb960a91.zip |
Merge pull request #4506 from TomSweeneyRedHat/dev/tsweeney/bump_buildah1.11.5
Bump to Buildah v1.11.5
Diffstat (limited to 'vendor/github.com/prometheus/procfs/crypto.go')
-rw-r--r-- | vendor/github.com/prometheus/procfs/crypto.go | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/procfs/crypto.go b/vendor/github.com/prometheus/procfs/crypto.go new file mode 100644 index 000000000..19d4041b2 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/crypto.go @@ -0,0 +1,131 @@ +// 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 +} |