diff --git a/vendor/github.com/prometheus/procfs/bcache/bcache.go b/vendor/github.com/prometheus/procfs/bcache/bcache.go new file mode 100644 index 0000000..1db178c --- /dev/null +++ b/vendor/github.com/prometheus/procfs/bcache/bcache.go @@ -0,0 +1,84 @@ +// Copyright 2017 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 bcache provides access to statistics exposed by the bcache (Linux +// block cache). +package bcache + +// Stats contains bcache runtime statistics, parsed from /sys/fs/bcache/. +// +// The names and meanings of each statistic were taken from bcache.txt and +// files in drivers/md/bcache in the Linux kernel source. Counters are uint64 +// (in-kernel counters are mostly unsigned long). +type Stats struct { + // The name of the bcache used to source these statistics. + Name string + Bcache BcacheStats + Bdevs []BdevStats + Caches []CacheStats +} + +// BcacheStats contains statistics tied to a bcache ID. +type BcacheStats struct { + AverageKeySize uint64 + BtreeCacheSize uint64 + CacheAvailablePercent uint64 + Congested uint64 + RootUsagePercent uint64 + TreeDepth uint64 + Internal InternalStats + FiveMin PeriodStats + Total PeriodStats +} + +// BdevStats contains statistics for one backing device. +type BdevStats struct { + Name string + DirtyData uint64 + FiveMin PeriodStats + Total PeriodStats +} + +// CacheStats contains statistics for one cache device. +type CacheStats struct { + Name string + IOErrors uint64 + MetadataWritten uint64 + Written uint64 + Priority PriorityStats +} + +// PriorityStats contains statistics from the priority_stats file. +type PriorityStats struct { + UnusedPercent uint64 + MetadataPercent uint64 +} + +// InternalStats contains internal bcache statistics. +type InternalStats struct { + ActiveJournalEntries uint64 + BtreeNodes uint64 + BtreeReadAverageDurationNanoSeconds uint64 + CacheReadRaces uint64 +} + +// PeriodStats contains statistics for a time period (5 min or total). +type PeriodStats struct { + Bypassed uint64 + CacheBypassHits uint64 + CacheBypassMisses uint64 + CacheHits uint64 + CacheMissCollisions uint64 + CacheMisses uint64 + CacheReadaheads uint64 +} diff --git a/vendor/github.com/prometheus/procfs/bcache/get.go b/vendor/github.com/prometheus/procfs/bcache/get.go new file mode 100644 index 0000000..4d56f3d --- /dev/null +++ b/vendor/github.com/prometheus/procfs/bcache/get.go @@ -0,0 +1,330 @@ +// Copyright 2017 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 bcache + +import ( + "bufio" + "fmt" + "io/ioutil" + "os" + "path" + "path/filepath" + "strconv" + "strings" +) + +// ParsePseudoFloat parses the peculiar format produced by bcache's bch_hprint. +func parsePseudoFloat(str string) (float64, error) { + ss := strings.Split(str, ".") + + intPart, err := strconv.ParseFloat(ss[0], 64) + if err != nil { + return 0, err + } + + if len(ss) == 1 { + // Pure integers are fine. + return intPart, nil + } + fracPart, err := strconv.ParseFloat(ss[1], 64) + if err != nil { + return 0, err + } + // fracPart is a number between 0 and 1023 divided by 100; it is off + // by a small amount. Unexpected bumps in time lines may occur because + // for bch_hprint .1 != .10 and .10 > .9 (at least up to Linux + // v4.12-rc3). + + // Restore the proper order: + fracPart = fracPart / 10.24 + return intPart + fracPart, nil +} + +// Dehumanize converts a human-readable byte slice into a uint64. +func dehumanize(hbytes []byte) (uint64, error) { + ll := len(hbytes) + if ll == 0 { + return 0, fmt.Errorf("zero-length reply") + } + lastByte := hbytes[ll-1] + mul := float64(1) + var ( + mant float64 + err error + ) + // If lastByte is beyond the range of ASCII digits, it must be a + // multiplier. + if lastByte > 57 { + // Remove multiplier from slice. + hbytes = hbytes[:len(hbytes)-1] + + const ( + _ = 1 << (10 * iota) + KiB + MiB + GiB + TiB + PiB + EiB + ZiB + YiB + ) + + multipliers := map[rune]float64{ + // Source for conversion rules: + // linux-kernel/drivers/md/bcache/util.c:bch_hprint() + 'k': KiB, + 'M': MiB, + 'G': GiB, + 'T': TiB, + 'P': PiB, + 'E': EiB, + 'Z': ZiB, + 'Y': YiB, + } + mul = float64(multipliers[rune(lastByte)]) + mant, err = parsePseudoFloat(string(hbytes)) + if err != nil { + return 0, err + } + } else { + // Not humanized by bch_hprint + mant, err = strconv.ParseFloat(string(hbytes), 64) + if err != nil { + return 0, err + } + } + res := uint64(mant * mul) + return res, nil +} + +type parser struct { + uuidPath string + subDir string + currentDir string + err error +} + +func (p *parser) setSubDir(pathElements ...string) { + p.subDir = path.Join(pathElements...) + p.currentDir = path.Join(p.uuidPath, p.subDir) +} + +func (p *parser) readValue(fileName string) uint64 { + if p.err != nil { + return 0 + } + path := path.Join(p.currentDir, fileName) + byt, err := ioutil.ReadFile(path) + if err != nil { + p.err = fmt.Errorf("failed to read: %s", path) + return 0 + } + // Remove trailing newline. + byt = byt[:len(byt)-1] + res, err := dehumanize(byt) + p.err = err + return res +} + +// ParsePriorityStats parses lines from the priority_stats file. +func parsePriorityStats(line string, ps *PriorityStats) (error) { + var ( + value uint64 + err error + ) + switch { + case strings.HasPrefix(line, "Unused:"): + fields := strings.Fields(line) + rawValue := fields[len(fields)-1] + valueStr := strings.TrimSuffix(rawValue, "%") + value, err = strconv.ParseUint(valueStr, 10, 64) + if err != nil { + return err + } + ps.UnusedPercent = value + case strings.HasPrefix(line, "Metadata:"): + fields := strings.Fields(line) + rawValue := fields[len(fields)-1] + valueStr := strings.TrimSuffix(rawValue, "%") + value, err = strconv.ParseUint(valueStr, 10, 64) + if err != nil { + return err + } + ps.MetadataPercent = value + } + return nil +} + +func (p *parser) getPriorityStats() PriorityStats { + var res PriorityStats + + if p.err != nil { + return res + } + + path := path.Join(p.currentDir, "priority_stats") + + file, err := os.Open(path) + if err != nil { + p.err = fmt.Errorf("failed to read: %s", path) + return res + } + defer file.Close() + + scanner := bufio.NewScanner(file) + for scanner.Scan() { + err = parsePriorityStats(scanner.Text(), &res) + if err != nil { + p.err = fmt.Errorf("failed to parse: %s (%s)", path, err) + return res + } + } + if err := scanner.Err(); err != nil { + p.err = fmt.Errorf("failed to parse: %s (%s)", path, err) + return res + } + return res +} + +// GetStats collects from sysfs files data tied to one bcache ID. +func GetStats(uuidPath string) (*Stats, error) { + var bs Stats + + par := parser{uuidPath: uuidPath} + + // bcache stats + + // dir + par.setSubDir("") + bs.Bcache.AverageKeySize = par.readValue("average_key_size") + bs.Bcache.BtreeCacheSize = par.readValue("btree_cache_size") + bs.Bcache.CacheAvailablePercent = par.readValue("cache_available_percent") + bs.Bcache.Congested = par.readValue("congested") + bs.Bcache.RootUsagePercent = par.readValue("root_usage_percent") + bs.Bcache.TreeDepth = par.readValue("tree_depth") + + // bcache stats (internal) + + // dir /internal + par.setSubDir("internal") + bs.Bcache.Internal.ActiveJournalEntries = par.readValue("active_journal_entries") + bs.Bcache.Internal.BtreeNodes = par.readValue("btree_nodes") + bs.Bcache.Internal.BtreeReadAverageDurationNanoSeconds = par.readValue("btree_read_average_duration_us") + bs.Bcache.Internal.CacheReadRaces = par.readValue("cache_read_races") + + // bcache stats (period) + + // dir /stats_five_minute + par.setSubDir("stats_five_minute") + bs.Bcache.FiveMin.Bypassed = par.readValue("bypassed") + bs.Bcache.FiveMin.CacheHits = par.readValue("cache_hits") + + bs.Bcache.FiveMin.Bypassed = par.readValue("bypassed") + bs.Bcache.FiveMin.CacheBypassHits = par.readValue("cache_bypass_hits") + bs.Bcache.FiveMin.CacheBypassMisses = par.readValue("cache_bypass_misses") + bs.Bcache.FiveMin.CacheHits = par.readValue("cache_hits") + bs.Bcache.FiveMin.CacheMissCollisions = par.readValue("cache_miss_collisions") + bs.Bcache.FiveMin.CacheMisses = par.readValue("cache_misses") + bs.Bcache.FiveMin.CacheReadaheads = par.readValue("cache_readaheads") + + // dir /stats_total + par.setSubDir("stats_total") + bs.Bcache.Total.Bypassed = par.readValue("bypassed") + bs.Bcache.Total.CacheHits = par.readValue("cache_hits") + + bs.Bcache.Total.Bypassed = par.readValue("bypassed") + bs.Bcache.Total.CacheBypassHits = par.readValue("cache_bypass_hits") + bs.Bcache.Total.CacheBypassMisses = par.readValue("cache_bypass_misses") + bs.Bcache.Total.CacheHits = par.readValue("cache_hits") + bs.Bcache.Total.CacheMissCollisions = par.readValue("cache_miss_collisions") + bs.Bcache.Total.CacheMisses = par.readValue("cache_misses") + bs.Bcache.Total.CacheReadaheads = par.readValue("cache_readaheads") + + if par.err != nil { + return nil, par.err + } + + // bdev stats + + reg := path.Join(uuidPath, "bdev[0-9]*") + bdevDirs, err := filepath.Glob(reg) + if err != nil { + return nil, err + } + + bs.Bdevs = make([]BdevStats, len(bdevDirs)) + + for ii, bdevDir := range bdevDirs { + var bds = &bs.Bdevs[ii] + + bds.Name = filepath.Base(bdevDir) + + par.setSubDir(bds.Name) + bds.DirtyData = par.readValue("dirty_data") + + // dir //stats_five_minute + par.setSubDir(bds.Name, "stats_five_minute") + bds.FiveMin.Bypassed = par.readValue("bypassed") + bds.FiveMin.CacheBypassHits = par.readValue("cache_bypass_hits") + bds.FiveMin.CacheBypassMisses = par.readValue("cache_bypass_misses") + bds.FiveMin.CacheHits = par.readValue("cache_hits") + bds.FiveMin.CacheMissCollisions = par.readValue("cache_miss_collisions") + bds.FiveMin.CacheMisses = par.readValue("cache_misses") + bds.FiveMin.CacheReadaheads = par.readValue("cache_readaheads") + + // dir //stats_total + par.setSubDir("stats_total") + bds.Total.Bypassed = par.readValue("bypassed") + bds.Total.CacheBypassHits = par.readValue("cache_bypass_hits") + bds.Total.CacheBypassMisses = par.readValue("cache_bypass_misses") + bds.Total.CacheHits = par.readValue("cache_hits") + bds.Total.CacheMissCollisions = par.readValue("cache_miss_collisions") + bds.Total.CacheMisses = par.readValue("cache_misses") + bds.Total.CacheReadaheads = par.readValue("cache_readaheads") + } + + if par.err != nil { + return nil, par.err + } + + // cache stats + + reg = path.Join(uuidPath, "cache[0-9]*") + cacheDirs, err := filepath.Glob(reg) + if err != nil { + return nil, err + } + bs.Caches = make([]CacheStats, len(cacheDirs)) + + for ii, cacheDir := range cacheDirs { + var cs = &bs.Caches[ii] + cs.Name = filepath.Base(cacheDir) + + // dir is / + par.setSubDir(cs.Name) + cs.IOErrors = par.readValue("io_errors") + cs.MetadataWritten = par.readValue("metadata_written") + cs.Written = par.readValue("written") + + ps := par.getPriorityStats() + cs.Priority = ps + } + + if par.err != nil { + return nil, par.err + } + + return &bs, nil +} diff --git a/vendor/github.com/prometheus/procfs/stat.go b/vendor/github.com/prometheus/procfs/stat.go index 1ca217e..701f4df 100644 --- a/vendor/github.com/prometheus/procfs/stat.go +++ b/vendor/github.com/prometheus/procfs/stat.go @@ -3,15 +3,66 @@ package procfs import ( "bufio" "fmt" + "io" "os" "strconv" "strings" ) +// CPUStat shows how much time the cpu spend in various stages. +type CPUStat struct { + User float64 + Nice float64 + System float64 + Idle float64 + Iowait float64 + IRQ float64 + SoftIRQ float64 + Steal float64 + Guest float64 + GuestNice float64 +} + +// SoftIRQStat represent the softirq statistics as exported in the procfs stat file. +// A nice introduction can be found at https://0xax.gitbooks.io/linux-insides/content/interrupts/interrupts-9.html +// It is possible to get per-cpu stats by reading /proc/softirqs +type SoftIRQStat struct { + Hi uint64 + Timer uint64 + NetTx uint64 + NetRx uint64 + Block uint64 + BlockIoPoll uint64 + Tasklet uint64 + Sched uint64 + Hrtimer uint64 + Rcu uint64 +} + // Stat represents kernel/system statistics. type Stat struct { // Boot time in seconds since the Epoch. - BootTime int64 + BootTime uint64 + // Summed up cpu statistics. + CPUTotal CPUStat + // Per-CPU statistics. + CPU []CPUStat + // Number of times interrupts were handled, which contains numbered and unnumbered IRQs. + IRQTotal uint64 + // Number of times a numbered IRQ was triggered. + IRQ []uint64 + // Number of times a context switch happened. + ContextSwitches uint64 + // Number of times a process was created. + ProcessCreated uint64 + // Number of processes currently running. + ProcessesRunning uint64 + // Number of processes currently blocked (waiting for IO). + ProcessesBlocked uint64 + // Number of times a softirq was scheduled. + SoftIRQTotal uint64 + // Detailed softirq statistics. + SoftIRQ SoftIRQStat } // NewStat returns kernel/system statistics read from /proc/stat. @@ -24,33 +75,145 @@ func NewStat() (Stat, error) { return fs.NewStat() } +// Parse a cpu statistics line and returns the CPUStat struct plus the cpu id (or -1 for the overall sum). +func parseCPUStat(line string) (CPUStat, int64, error) { + cpuStat := CPUStat{} + var cpu string + + count, err := fmt.Sscanf(line, "%s %f %f %f %f %f %f %f %f %f %f", + &cpu, + &cpuStat.User, &cpuStat.Nice, &cpuStat.System, &cpuStat.Idle, + &cpuStat.Iowait, &cpuStat.IRQ, &cpuStat.SoftIRQ, &cpuStat.Steal, + &cpuStat.Guest, &cpuStat.GuestNice) + + if err != nil && err != io.EOF { + return CPUStat{}, -1, fmt.Errorf("couldn't parse %s (cpu): %s", line, err) + } + if count == 0 { + return CPUStat{}, -1, fmt.Errorf("couldn't parse %s (cpu): 0 elements parsed", line) + } + + cpuStat.User /= userHZ + cpuStat.Nice /= userHZ + cpuStat.System /= userHZ + cpuStat.Idle /= userHZ + cpuStat.Iowait /= userHZ + cpuStat.IRQ /= userHZ + cpuStat.SoftIRQ /= userHZ + cpuStat.Steal /= userHZ + cpuStat.Guest /= userHZ + cpuStat.GuestNice /= userHZ + + if cpu == "cpu" { + return cpuStat, -1, nil + } + + cpuID, err := strconv.ParseInt(cpu[3:], 10, 64) + if err != nil { + return CPUStat{}, -1, fmt.Errorf("couldn't parse %s (cpu/cpuid): %s", line, err) + } + + return cpuStat, cpuID, nil +} + +// Parse a softirq line. +func parseSoftIRQStat(line string) (SoftIRQStat, uint64, error) { + softIRQStat := SoftIRQStat{} + var total uint64 + var prefix string + + _, err := fmt.Sscanf(line, "%s %d %d %d %d %d %d %d %d %d %d %d", + &prefix, &total, + &softIRQStat.Hi, &softIRQStat.Timer, &softIRQStat.NetTx, &softIRQStat.NetRx, + &softIRQStat.Block, &softIRQStat.BlockIoPoll, + &softIRQStat.Tasklet, &softIRQStat.Sched, + &softIRQStat.Hrtimer, &softIRQStat.Rcu) + + if err != nil { + return SoftIRQStat{}, 0, fmt.Errorf("couldn't parse %s (softirq): %s", line, err) + } + + return softIRQStat, total, nil +} + // NewStat returns an information about current kernel/system statistics. func (fs FS) NewStat() (Stat, error) { + // See https://www.kernel.org/doc/Documentation/filesystems/proc.txt + f, err := os.Open(fs.Path("stat")) if err != nil { return Stat{}, err } defer f.Close() - s := bufio.NewScanner(f) - for s.Scan() { - line := s.Text() - if !strings.HasPrefix(line, "btime") { + stat := Stat{} + + scanner := bufio.NewScanner(f) + for scanner.Scan() { + line := scanner.Text() + parts := strings.Fields(scanner.Text()) + // require at least + if len(parts) < 2 { continue } - fields := strings.Fields(line) - if len(fields) != 2 { - return Stat{}, fmt.Errorf("couldn't parse %s line %s", f.Name(), line) + switch { + case parts[0] == "btime": + if stat.BootTime, err = strconv.ParseUint(parts[1], 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (btime): %s", parts[1], err) + } + case parts[0] == "intr": + if stat.IRQTotal, err = strconv.ParseUint(parts[1], 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (intr): %s", parts[1], err) + } + numberedIRQs := parts[2:] + stat.IRQ = make([]uint64, len(numberedIRQs)) + for i, count := range numberedIRQs { + if stat.IRQ[i], err = strconv.ParseUint(count, 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (intr%d): %s", count, i, err) + } + } + case parts[0] == "ctxt": + if stat.ContextSwitches, err = strconv.ParseUint(parts[1], 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (ctxt): %s", parts[1], err) + } + case parts[0] == "processes": + if stat.ProcessCreated, err = strconv.ParseUint(parts[1], 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (processes): %s", parts[1], err) + } + case parts[0] == "procs_running": + if stat.ProcessesRunning, err = strconv.ParseUint(parts[1], 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (procs_running): %s", parts[1], err) + } + case parts[0] == "procs_blocked": + if stat.ProcessesBlocked, err = strconv.ParseUint(parts[1], 10, 64); err != nil { + return Stat{}, fmt.Errorf("couldn't parse %s (procs_blocked): %s", parts[1], err) + } + case parts[0] == "softirq": + softIRQStats, total, err := parseSoftIRQStat(line) + if err != nil { + return Stat{}, err + } + stat.SoftIRQTotal = total + stat.SoftIRQ = softIRQStats + case strings.HasPrefix(parts[0], "cpu"): + cpuStat, cpuID, err := parseCPUStat(line) + if err != nil { + return Stat{}, err + } + if cpuID == -1 { + stat.CPUTotal = cpuStat + } else { + for int64(len(stat.CPU)) <= cpuID { + stat.CPU = append(stat.CPU, CPUStat{}) + } + stat.CPU[cpuID] = cpuStat + } } - i, err := strconv.ParseInt(fields[1], 10, 32) - if err != nil { - return Stat{}, fmt.Errorf("couldn't parse %s: %s", fields[1], err) - } - return Stat{BootTime: i}, nil } - if err := s.Err(); err != nil { + + if err := scanner.Err(); err != nil { return Stat{}, fmt.Errorf("couldn't parse %s: %s", f.Name(), err) } - return Stat{}, fmt.Errorf("couldn't parse %s, missing btime", f.Name()) + return stat, nil } diff --git a/vendor/github.com/prometheus/procfs/sysfs/fs.go b/vendor/github.com/prometheus/procfs/sysfs/fs.go index 8e83800..fb15d43 100644 --- a/vendor/github.com/prometheus/procfs/sysfs/fs.go +++ b/vendor/github.com/prometheus/procfs/sysfs/fs.go @@ -18,6 +18,7 @@ import ( "os" "path/filepath" + "github.com/prometheus/procfs/bcache" "github.com/prometheus/procfs/xfs" ) @@ -80,3 +81,28 @@ func (fs FS) XFSStats() ([]*xfs.Stats, error) { return stats, nil } + +// BcacheStats retrieves bcache runtime statistics for each bcache. +func (fs FS) BcacheStats() ([]*bcache.Stats, error) { + matches, err := filepath.Glob(fs.Path("fs/bcache/*-*")) + if err != nil { + return nil, err + } + + stats := make([]*bcache.Stats, 0, len(matches)) + for _, uuidPath := range matches { + // "*-*" in glob above indicates the name of the bcache. + name := filepath.Base(uuidPath) + + // stats + s, err := bcache.GetStats(uuidPath) + if err != nil { + return nil, err + } + + s.Name = name + stats = append(stats, s) + } + + return stats, nil +} diff --git a/vendor/github.com/prometheus/procfs/xfrm.go b/vendor/github.com/prometheus/procfs/xfrm.go new file mode 100644 index 0000000..ffe9df5 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/xfrm.go @@ -0,0 +1,187 @@ +// Copyright 2017 Prometheus Team +// 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" + "fmt" + "os" + "strconv" + "strings" +) + +// XfrmStat models the contents of /proc/net/xfrm_stat. +type XfrmStat struct { + // All errors which are not matched by other + XfrmInError int + // No buffer is left + XfrmInBufferError int + // Header Error + XfrmInHdrError int + // No state found + // i.e. either inbound SPI, address, or IPSEC protocol at SA is wrong + XfrmInNoStates int + // Transformation protocol specific error + // e.g. SA Key is wrong + XfrmInStateProtoError int + // Transformation mode specific error + XfrmInStateModeError int + // Sequence error + // e.g. sequence number is out of window + XfrmInStateSeqError int + // State is expired + XfrmInStateExpired int + // State has mismatch option + // e.g. UDP encapsulation type is mismatched + XfrmInStateMismatch int + // State is invalid + XfrmInStateInvalid int + // No matching template for states + // e.g. Inbound SAs are correct but SP rule is wrong + XfrmInTmplMismatch int + // No policy is found for states + // e.g. Inbound SAs are correct but no SP is found + XfrmInNoPols int + // Policy discards + XfrmInPolBlock int + // Policy error + XfrmInPolError int + // All errors which are not matched by others + XfrmOutError int + // Bundle generation error + XfrmOutBundleGenError int + // Bundle check error + XfrmOutBundleCheckError int + // No state was found + XfrmOutNoStates int + // Transformation protocol specific error + XfrmOutStateProtoError int + // Transportation mode specific error + XfrmOutStateModeError int + // Sequence error + // i.e sequence number overflow + XfrmOutStateSeqError int + // State is expired + XfrmOutStateExpired int + // Policy discads + XfrmOutPolBlock int + // Policy is dead + XfrmOutPolDead int + // Policy Error + XfrmOutPolError int + XfrmFwdHdrError int + XfrmOutStateInvalid int + XfrmAcquireError int +} + +// NewXfrmStat reads the xfrm_stat statistics. +func NewXfrmStat() (XfrmStat, error) { + fs, err := NewFS(DefaultMountPoint) + if err != nil { + return XfrmStat{}, err + } + + return fs.NewXfrmStat() +} + +// NewXfrmStat reads the xfrm_stat statistics from the 'proc' filesystem. +func (fs FS) NewXfrmStat() (XfrmStat, error) { + file, err := os.Open(fs.Path("net/xfrm_stat")) + if err != nil { + return XfrmStat{}, err + } + defer file.Close() + + var ( + x = XfrmStat{} + s = bufio.NewScanner(file) + ) + + for s.Scan() { + fields := strings.Fields(s.Text()) + + if len(fields) != 2 { + return XfrmStat{}, fmt.Errorf( + "couldnt parse %s line %s", file.Name(), s.Text()) + } + + name := fields[0] + value, err := strconv.Atoi(fields[1]) + if err != nil { + return XfrmStat{}, err + } + + switch name { + case "XfrmInError": + x.XfrmInError = value + case "XfrmInBufferError": + x.XfrmInBufferError = value + case "XfrmInHdrError": + x.XfrmInHdrError = value + case "XfrmInNoStates": + x.XfrmInNoStates = value + case "XfrmInStateProtoError": + x.XfrmInStateProtoError = value + case "XfrmInStateModeError": + x.XfrmInStateModeError = value + case "XfrmInStateSeqError": + x.XfrmInStateSeqError = value + case "XfrmInStateExpired": + x.XfrmInStateExpired = value + case "XfrmInStateInvalid": + x.XfrmInStateInvalid = value + case "XfrmInTmplMismatch": + x.XfrmInTmplMismatch = value + case "XfrmInNoPols": + x.XfrmInNoPols = value + case "XfrmInPolBlock": + x.XfrmInPolBlock = value + case "XfrmInPolError": + x.XfrmInPolError = value + case "XfrmOutError": + x.XfrmOutError = value + case "XfrmInStateMismatch": + x.XfrmInStateMismatch = value + case "XfrmOutBundleGenError": + x.XfrmOutBundleGenError = value + case "XfrmOutBundleCheckError": + x.XfrmOutBundleCheckError = value + case "XfrmOutNoStates": + x.XfrmOutNoStates = value + case "XfrmOutStateProtoError": + x.XfrmOutStateProtoError = value + case "XfrmOutStateModeError": + x.XfrmOutStateModeError = value + case "XfrmOutStateSeqError": + x.XfrmOutStateSeqError = value + case "XfrmOutStateExpired": + x.XfrmOutStateExpired = value + case "XfrmOutPolBlock": + x.XfrmOutPolBlock = value + case "XfrmOutPolDead": + x.XfrmOutPolDead = value + case "XfrmOutPolError": + x.XfrmOutPolError = value + case "XfrmFwdHdrError": + x.XfrmFwdHdrError = value + case "XfrmOutStateInvalid": + x.XfrmOutStateInvalid = value + case "XfrmAcquireError": + x.XfrmAcquireError = value + } + + } + + return x, s.Err() +} diff --git a/vendor/vendor.json b/vendor/vendor.json index 0381cec..f347023 100644 --- a/vendor/vendor.json +++ b/vendor/vendor.json @@ -135,22 +135,28 @@ "revisionTime": "2017-02-20T10:38:46Z" }, { - "checksumSHA1": "my9sP6myQbSinzWZwxa4Q1V6awU=", + "checksumSHA1": "K1HtPl6z/FoGkfWO7zZkzFqeDZ4=", "path": "github.com/prometheus/procfs", - "revision": "d098ca18df8bc825079013daf7bacefbb1ee877e", - "revisionTime": "2017-05-01T09:11:53Z" + "revision": "a66a2f8b6f3fe82a95a1bed0bb3705bac8031717", + "revisionTime": "2017-06-07T19:36:46Z" }, { - "checksumSHA1": "eiBAd4edewJTOtTwxh/ubJdjd+I=", + "checksumSHA1": "RAb14ZPZ6Y+AD0TnMBqLHaIw/I8=", + "path": "github.com/prometheus/procfs/bcache", + "revision": "a66a2f8b6f3fe82a95a1bed0bb3705bac8031717", + "revisionTime": "2017-06-07T19:36:46Z" + }, + { + "checksumSHA1": "8wNwVL3xTGA0N92ywfyiPvQeFmE=", "path": "github.com/prometheus/procfs/sysfs", - "revision": "d098ca18df8bc825079013daf7bacefbb1ee877e", - "revisionTime": "2017-05-01T09:11:53Z" + "revision": "a66a2f8b6f3fe82a95a1bed0bb3705bac8031717", + "revisionTime": "2017-06-07T19:36:46Z" }, { "checksumSHA1": "xCiFAAwVTrjsfZT1BIJQ3DgeNCY=", "path": "github.com/prometheus/procfs/xfs", - "revision": "d098ca18df8bc825079013daf7bacefbb1ee877e", - "revisionTime": "2017-05-01T09:11:53Z" + "revision": "a66a2f8b6f3fe82a95a1bed0bb3705bac8031717", + "revisionTime": "2017-06-07T19:36:46Z" }, { "checksumSHA1": "uozMgPjB4AggpuuJkGq3FgAs4CA=",