mirror of
https://github.com/genuinetools/reg.git
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188 lines
4.8 KiB
Go
188 lines
4.8 KiB
Go
// Copyright 2017 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package procfs
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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"strings"
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)
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// XfrmStat models the contents of /proc/net/xfrm_stat.
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type XfrmStat struct {
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// All errors which are not matched by other
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XfrmInError int
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// No buffer is left
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XfrmInBufferError int
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// Header Error
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XfrmInHdrError int
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// No state found
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// i.e. either inbound SPI, address, or IPSEC protocol at SA is wrong
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XfrmInNoStates int
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// Transformation protocol specific error
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// e.g. SA Key is wrong
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XfrmInStateProtoError int
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// Transformation mode specific error
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XfrmInStateModeError int
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// Sequence error
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// e.g. sequence number is out of window
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XfrmInStateSeqError int
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// State is expired
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XfrmInStateExpired int
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// State has mismatch option
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// e.g. UDP encapsulation type is mismatched
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XfrmInStateMismatch int
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// State is invalid
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XfrmInStateInvalid int
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// No matching template for states
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// e.g. Inbound SAs are correct but SP rule is wrong
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XfrmInTmplMismatch int
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// No policy is found for states
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// e.g. Inbound SAs are correct but no SP is found
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XfrmInNoPols int
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// Policy discards
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XfrmInPolBlock int
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// Policy error
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XfrmInPolError int
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// All errors which are not matched by others
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XfrmOutError int
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// Bundle generation error
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XfrmOutBundleGenError int
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// Bundle check error
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XfrmOutBundleCheckError int
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// No state was found
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XfrmOutNoStates int
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// Transformation protocol specific error
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XfrmOutStateProtoError int
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// Transportation mode specific error
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XfrmOutStateModeError int
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// Sequence error
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// i.e sequence number overflow
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XfrmOutStateSeqError int
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// State is expired
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XfrmOutStateExpired int
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// Policy discads
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XfrmOutPolBlock int
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// Policy is dead
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XfrmOutPolDead int
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// Policy Error
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XfrmOutPolError int
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XfrmFwdHdrError int
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XfrmOutStateInvalid int
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XfrmAcquireError int
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}
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// NewXfrmStat reads the xfrm_stat statistics.
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func NewXfrmStat() (XfrmStat, error) {
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fs, err := NewFS(DefaultMountPoint)
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if err != nil {
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return XfrmStat{}, err
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}
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return fs.NewXfrmStat()
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}
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// NewXfrmStat reads the xfrm_stat statistics from the 'proc' filesystem.
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func (fs FS) NewXfrmStat() (XfrmStat, error) {
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file, err := os.Open(fs.Path("net/xfrm_stat"))
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if err != nil {
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return XfrmStat{}, err
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}
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defer file.Close()
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var (
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x = XfrmStat{}
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s = bufio.NewScanner(file)
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)
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for s.Scan() {
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fields := strings.Fields(s.Text())
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if len(fields) != 2 {
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return XfrmStat{}, fmt.Errorf(
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"couldnt parse %s line %s", file.Name(), s.Text())
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}
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name := fields[0]
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value, err := strconv.Atoi(fields[1])
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if err != nil {
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return XfrmStat{}, err
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}
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switch name {
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case "XfrmInError":
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x.XfrmInError = value
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case "XfrmInBufferError":
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x.XfrmInBufferError = value
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case "XfrmInHdrError":
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x.XfrmInHdrError = value
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case "XfrmInNoStates":
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x.XfrmInNoStates = value
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case "XfrmInStateProtoError":
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x.XfrmInStateProtoError = value
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case "XfrmInStateModeError":
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x.XfrmInStateModeError = value
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case "XfrmInStateSeqError":
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x.XfrmInStateSeqError = value
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case "XfrmInStateExpired":
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x.XfrmInStateExpired = value
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case "XfrmInStateInvalid":
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x.XfrmInStateInvalid = value
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case "XfrmInTmplMismatch":
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x.XfrmInTmplMismatch = value
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case "XfrmInNoPols":
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x.XfrmInNoPols = value
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case "XfrmInPolBlock":
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x.XfrmInPolBlock = value
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case "XfrmInPolError":
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x.XfrmInPolError = value
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case "XfrmOutError":
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x.XfrmOutError = value
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case "XfrmInStateMismatch":
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x.XfrmInStateMismatch = value
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case "XfrmOutBundleGenError":
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x.XfrmOutBundleGenError = value
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case "XfrmOutBundleCheckError":
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x.XfrmOutBundleCheckError = value
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case "XfrmOutNoStates":
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x.XfrmOutNoStates = value
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case "XfrmOutStateProtoError":
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x.XfrmOutStateProtoError = value
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case "XfrmOutStateModeError":
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x.XfrmOutStateModeError = value
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case "XfrmOutStateSeqError":
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x.XfrmOutStateSeqError = value
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case "XfrmOutStateExpired":
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x.XfrmOutStateExpired = value
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case "XfrmOutPolBlock":
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x.XfrmOutPolBlock = value
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case "XfrmOutPolDead":
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x.XfrmOutPolDead = value
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case "XfrmOutPolError":
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x.XfrmOutPolError = value
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case "XfrmFwdHdrError":
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x.XfrmFwdHdrError = value
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case "XfrmOutStateInvalid":
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x.XfrmOutStateInvalid = value
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case "XfrmAcquireError":
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x.XfrmAcquireError = value
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}
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}
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return x, s.Err()
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}
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