From 2fa7c464f019f67c5c0494aaf5ac0f5ecc1ee7a7 Mon Sep 17 00:00:00 2001
From: Harrison Healey <harrisonmhealey@gmail.com>
Date: Tue, 16 Jan 2018 12:03:31 -0500
Subject: Updated dependencies and added avct/uasurfer (#8089)

* Updated dependencies and added avct/uasurfer

* Added uasurfer to NOTICE.txt
---
 vendor/github.com/prometheus/client_model/Makefile |   1 +
 .../prometheus/common/config/http_config.go        |  10 +-
 .../prometheus/common/config/http_config_test.go   |   2 +-
 vendor/github.com/prometheus/common/model/time.go  |   3 +
 .../prometheus/common/model/time_test.go           |   3 +
 vendor/github.com/prometheus/procfs/.travis.yml    |   8 +-
 vendor/github.com/prometheus/procfs/bcache/get.go  |   8 +-
 .../prometheus/procfs/bcache/get_test.go           |  20 +-
 vendor/github.com/prometheus/procfs/buddyinfo.go   |   2 +-
 .../prometheus/procfs/fixtures/26231/net/dev       |   4 +
 .../prometheus/procfs/fixtures/26231/ns/mnt        |   1 +
 .../prometheus/procfs/fixtures/26231/ns/net        |   1 +
 .../github.com/prometheus/procfs/fixtures/net/dev  |   6 +
 vendor/github.com/prometheus/procfs/ipvs.go        |  10 +-
 vendor/github.com/prometheus/procfs/net_dev.go     | 203 +++++++++++++++++++++
 .../github.com/prometheus/procfs/net_dev_test.go   |  73 ++++++++
 vendor/github.com/prometheus/procfs/proc_io.go     |   5 +-
 vendor/github.com/prometheus/procfs/proc_ns.go     |  55 ++++++
 .../github.com/prometheus/procfs/proc_ns_test.go   |  31 ++++
 19 files changed, 415 insertions(+), 31 deletions(-)
 create mode 100644 vendor/github.com/prometheus/procfs/fixtures/26231/net/dev
 create mode 120000 vendor/github.com/prometheus/procfs/fixtures/26231/ns/mnt
 create mode 120000 vendor/github.com/prometheus/procfs/fixtures/26231/ns/net
 create mode 100644 vendor/github.com/prometheus/procfs/fixtures/net/dev
 create mode 100644 vendor/github.com/prometheus/procfs/net_dev.go
 create mode 100644 vendor/github.com/prometheus/procfs/net_dev_test.go
 create mode 100644 vendor/github.com/prometheus/procfs/proc_ns.go
 create mode 100644 vendor/github.com/prometheus/procfs/proc_ns_test.go

(limited to 'vendor/github.com/prometheus')

diff --git a/vendor/github.com/prometheus/client_model/Makefile b/vendor/github.com/prometheus/client_model/Makefile
index 9cc23b340..e147c69da 100644
--- a/vendor/github.com/prometheus/client_model/Makefile
+++ b/vendor/github.com/prometheus/client_model/Makefile
@@ -39,6 +39,7 @@ src/main/java/io/prometheus/client/Metrics.java: metrics.proto
 python: python/prometheus/client/model/metrics_pb2.py
 
 python/prometheus/client/model/metrics_pb2.py: metrics.proto
+	mkdir -p python/prometheus/client/model
 	protoc $< --python_out=python/prometheus/client/model
 
 ruby:
diff --git a/vendor/github.com/prometheus/common/config/http_config.go b/vendor/github.com/prometheus/common/config/http_config.go
index ff5837fa5..ea231bf8d 100644
--- a/vendor/github.com/prometheus/common/config/http_config.go
+++ b/vendor/github.com/prometheus/common/config/http_config.go
@@ -22,7 +22,7 @@ import (
 	"net/url"
 	"strings"
 
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 )
 
 // BasicAuth contains basic HTTP authentication credentials.
@@ -79,7 +79,9 @@ type HTTPClientConfig struct {
 	XXX map[string]interface{} `yaml:",inline"`
 }
 
-func (c *HTTPClientConfig) validate() error {
+// Validate validates the HTTPClientConfig to check only one of BearerToken,
+// BasicAuth and BearerTokenFile is configured.
+func (c *HTTPClientConfig) Validate() error {
 	if len(c.BearerToken) > 0 && len(c.BearerTokenFile) > 0 {
 		return fmt.Errorf("at most one of bearer_token & bearer_token_file must be configured")
 	}
@@ -96,9 +98,9 @@ func (c *HTTPClientConfig) UnmarshalYAML(unmarshal func(interface{}) error) erro
 	if err != nil {
 		return err
 	}
-	err = c.validate()
+	err = c.Validate()
 	if err != nil {
-		return c.validate()
+		return c.Validate()
 	}
 	return checkOverflow(c.XXX, "http_client_config")
 }
diff --git a/vendor/github.com/prometheus/common/config/http_config_test.go b/vendor/github.com/prometheus/common/config/http_config_test.go
index 1e2490bbb..4b13e101b 100644
--- a/vendor/github.com/prometheus/common/config/http_config_test.go
+++ b/vendor/github.com/prometheus/common/config/http_config_test.go
@@ -114,7 +114,7 @@ func TestValidateHTTPConfig(t *testing.T) {
 	if err != nil {
 		t.Errorf("Error loading HTTP client config: %v", err)
 	}
-	err = cfg.validate()
+	err = cfg.Validate()
 	if err != nil {
 		t.Fatalf("Error validating %s: %s", "testdata/http.conf.good.yml", err)
 	}
diff --git a/vendor/github.com/prometheus/common/model/time.go b/vendor/github.com/prometheus/common/model/time.go
index 7e87f1ac6..74ed5a9f7 100644
--- a/vendor/github.com/prometheus/common/model/time.go
+++ b/vendor/github.com/prometheus/common/model/time.go
@@ -214,6 +214,9 @@ func (d Duration) String() string {
 		ms   = int64(time.Duration(d) / time.Millisecond)
 		unit = "ms"
 	)
+	if ms == 0 {
+		return "0s"
+	}
 	factors := map[string]int64{
 		"y":  1000 * 60 * 60 * 24 * 365,
 		"w":  1000 * 60 * 60 * 24 * 7,
diff --git a/vendor/github.com/prometheus/common/model/time_test.go b/vendor/github.com/prometheus/common/model/time_test.go
index 45ffd872d..3efdd65ff 100644
--- a/vendor/github.com/prometheus/common/model/time_test.go
+++ b/vendor/github.com/prometheus/common/model/time_test.go
@@ -91,6 +91,9 @@ func TestParseDuration(t *testing.T) {
 		out time.Duration
 	}{
 		{
+			in:  "0s",
+			out: 0,
+		}, {
 			in:  "324ms",
 			out: 324 * time.Millisecond,
 		}, {
diff --git a/vendor/github.com/prometheus/procfs/.travis.yml b/vendor/github.com/prometheus/procfs/.travis.yml
index ee09bb733..0dc42122b 100644
--- a/vendor/github.com/prometheus/procfs/.travis.yml
+++ b/vendor/github.com/prometheus/procfs/.travis.yml
@@ -1,5 +1,9 @@
 sudo: false
+
 language: go
+
 go:
-    - 1.7.6
-    - 1.8.3
+- 1.9.x
+- 1.x
+
+go_import_path: github.com/prometheus/procfs
diff --git a/vendor/github.com/prometheus/procfs/bcache/get.go b/vendor/github.com/prometheus/procfs/bcache/get.go
index 4d56f3d98..b6d97de15 100644
--- a/vendor/github.com/prometheus/procfs/bcache/get.go
+++ b/vendor/github.com/prometheus/procfs/bcache/get.go
@@ -61,7 +61,7 @@ func dehumanize(hbytes []byte) (uint64, error) {
 	mul := float64(1)
 	var (
 		mant float64
-		err error
+		err  error
 	)
 	// If lastByte is beyond the range of ASCII digits, it must be a
 	// multiplier.
@@ -93,7 +93,7 @@ func dehumanize(hbytes []byte) (uint64, error) {
 			'Z': ZiB,
 			'Y': YiB,
 		}
-		mul = float64(multipliers[rune(lastByte)])
+		mul = multipliers[rune(lastByte)]
 		mant, err = parsePseudoFloat(string(hbytes))
 		if err != nil {
 			return 0, err
@@ -139,10 +139,10 @@ func (p *parser) readValue(fileName string) uint64 {
 }
 
 // ParsePriorityStats parses lines from the priority_stats file.
-func parsePriorityStats(line string, ps *PriorityStats) (error) {
+func parsePriorityStats(line string, ps *PriorityStats) error {
 	var (
 		value uint64
-		err error
+		err   error
 	)
 	switch {
 	case strings.HasPrefix(line, "Unused:"):
diff --git a/vendor/github.com/prometheus/procfs/bcache/get_test.go b/vendor/github.com/prometheus/procfs/bcache/get_test.go
index 38c3df573..1d41a5ad3 100644
--- a/vendor/github.com/prometheus/procfs/bcache/get_test.go
+++ b/vendor/github.com/prometheus/procfs/bcache/get_test.go
@@ -14,8 +14,8 @@
 package bcache
 
 import (
-	"testing"
 	"math"
+	"testing"
 )
 
 func TestDehumanizeTests(t *testing.T) {
@@ -45,8 +45,8 @@ func TestDehumanizeTests(t *testing.T) {
 			out: 2024,
 		},
 		{
-			in:  []byte(""),
-			out: 0,
+			in:      []byte(""),
+			out:     0,
 			invalid: true,
 		},
 	}
@@ -59,7 +59,7 @@ func TestDehumanizeTests(t *testing.T) {
 			t.Errorf("unexpected error: %v", err)
 		}
 		if got != tst.out {
-			t.Errorf("dehumanize: '%s', want %f, got %f", tst.in, tst.out, got)
+			t.Errorf("dehumanize: '%s', want %d, got %d", tst.in, tst.out, got)
 		}
 	}
 }
@@ -84,7 +84,7 @@ func TestParsePseudoFloatTests(t *testing.T) {
 	}
 	for _, tst := range parsePseudoFloatTests {
 		got, err := parsePseudoFloat(tst.in)
-		if err != nil || math.Abs(got - tst.out) > 0.0001 {
+		if err != nil || math.Abs(got-tst.out) > 0.0001 {
 			t.Errorf("parsePseudoFloat: %s, want %f, got %f", tst.in, tst.out, got)
 		}
 	}
@@ -92,23 +92,23 @@ func TestParsePseudoFloatTests(t *testing.T) {
 
 func TestPriorityStats(t *testing.T) {
 	var want = PriorityStats{
-		UnusedPercent: 99,
+		UnusedPercent:   99,
 		MetadataPercent: 5,
 	}
 	var (
-		in string
+		in     string
 		gotErr error
-		got PriorityStats
+		got    PriorityStats
 	)
 	in = "Metadata:       5%"
 	gotErr = parsePriorityStats(in, &got)
 	if gotErr != nil || got.MetadataPercent != want.MetadataPercent {
-		t.Errorf("parsePriorityStats: '%s', want %f, got %f", in, want.MetadataPercent, got.MetadataPercent)
+		t.Errorf("parsePriorityStats: '%s', want %d, got %d", in, want.MetadataPercent, got.MetadataPercent)
 	}
 
 	in = "Unused:         99%"
 	gotErr = parsePriorityStats(in, &got)
 	if gotErr != nil || got.UnusedPercent != want.UnusedPercent {
-		t.Errorf("parsePriorityStats: '%s', want %f, got %f", in, want.UnusedPercent, got.UnusedPercent)
+		t.Errorf("parsePriorityStats: '%s', want %d, got %d", in, want.UnusedPercent, got.UnusedPercent)
 	}
 }
diff --git a/vendor/github.com/prometheus/procfs/buddyinfo.go b/vendor/github.com/prometheus/procfs/buddyinfo.go
index 680a9842a..d3a826807 100644
--- a/vendor/github.com/prometheus/procfs/buddyinfo.go
+++ b/vendor/github.com/prometheus/procfs/buddyinfo.go
@@ -62,7 +62,7 @@ func parseBuddyInfo(r io.Reader) ([]BuddyInfo, error) {
 	for scanner.Scan() {
 		var err error
 		line := scanner.Text()
-		parts := strings.Fields(string(line))
+		parts := strings.Fields(line)
 
 		if len(parts) < 4 {
 			return nil, fmt.Errorf("invalid number of fields when parsing buddyinfo")
diff --git a/vendor/github.com/prometheus/procfs/fixtures/26231/net/dev b/vendor/github.com/prometheus/procfs/fixtures/26231/net/dev
new file mode 100644
index 000000000..f10895560
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/fixtures/26231/net/dev
@@ -0,0 +1,4 @@
+Inter-|   Receive                                                |  Transmit
+ face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
+    lo:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
+  eth0:     438       5    0    0    0     0          0         0      648       8    0    0    0     0       0          0
diff --git a/vendor/github.com/prometheus/procfs/fixtures/26231/ns/mnt b/vendor/github.com/prometheus/procfs/fixtures/26231/ns/mnt
new file mode 120000
index 000000000..9c52ca211
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/fixtures/26231/ns/mnt
@@ -0,0 +1 @@
+mnt:[4026531840]
\ No newline at end of file
diff --git a/vendor/github.com/prometheus/procfs/fixtures/26231/ns/net b/vendor/github.com/prometheus/procfs/fixtures/26231/ns/net
new file mode 120000
index 000000000..1f0f79594
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/fixtures/26231/ns/net
@@ -0,0 +1 @@
+net:[4026531993]
\ No newline at end of file
diff --git a/vendor/github.com/prometheus/procfs/fixtures/net/dev b/vendor/github.com/prometheus/procfs/fixtures/net/dev
new file mode 100644
index 000000000..2df786fa5
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/fixtures/net/dev
@@ -0,0 +1,6 @@
+Inter-|   Receive                                                |  Transmit
+ face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
+vethf345468:     648       8    0    0    0     0          0         0      438       5    0    0    0     0       0          0
+    lo: 1664039048 1566805    0    0    0     0          0         0 1664039048 1566805    0    0    0     0       0          0
+docker0:    2568      38    0    0    0     0          0         0      438       5    0    0    0     0       0          0
+  eth0: 874354587 1036395    0    0    0     0          0         0 563352563  732147    0    0    0     0       0          0
diff --git a/vendor/github.com/prometheus/procfs/ipvs.go b/vendor/github.com/prometheus/procfs/ipvs.go
index 696d114e7..5761b4570 100644
--- a/vendor/github.com/prometheus/procfs/ipvs.go
+++ b/vendor/github.com/prometheus/procfs/ipvs.go
@@ -31,16 +31,16 @@ type IPVSStats struct {
 type IPVSBackendStatus struct {
 	// The local (virtual) IP address.
 	LocalAddress net.IP
+	// The remote (real) IP address.
+	RemoteAddress net.IP
 	// The local (virtual) port.
 	LocalPort uint16
+	// The remote (real) port.
+	RemotePort uint16
 	// The local firewall mark
 	LocalMark string
 	// The transport protocol (TCP, UDP).
 	Proto string
-	// The remote (real) IP address.
-	RemoteAddress net.IP
-	// The remote (real) port.
-	RemotePort uint16
 	// The current number of active connections for this virtual/real address pair.
 	ActiveConn uint64
 	// The current number of inactive connections for this virtual/real address pair.
@@ -151,7 +151,7 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) {
 	)
 
 	for scanner.Scan() {
-		fields := strings.Fields(string(scanner.Text()))
+		fields := strings.Fields(scanner.Text())
 		if len(fields) == 0 {
 			continue
 		}
diff --git a/vendor/github.com/prometheus/procfs/net_dev.go b/vendor/github.com/prometheus/procfs/net_dev.go
new file mode 100644
index 000000000..f8c184efe
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/net_dev.go
@@ -0,0 +1,203 @@
+package procfs
+
+import (
+	"bufio"
+	"errors"
+	"os"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+// NetDevLine is single line parsed from /proc/net/dev or /proc/[pid]/net/dev.
+type NetDevLine struct {
+	Name         string `json:"name"`          // The name of the interface.
+	RxBytes      uint64 `json:"rx_bytes"`      // Cumulative count of bytes received.
+	RxPackets    uint64 `json:"rx_packets"`    // Cumulative count of packets received.
+	RxErrors     uint64 `json:"rx_errors"`     // Cumulative count of receive errors encountered.
+	RxDropped    uint64 `json:"rx_dropped"`    // Cumulative count of packets dropped while receiving.
+	RxFIFO       uint64 `json:"rx_fifo"`       // Cumulative count of FIFO buffer errors.
+	RxFrame      uint64 `json:"rx_frame"`      // Cumulative count of packet framing errors.
+	RxCompressed uint64 `json:"rx_compressed"` // Cumulative count of compressed packets received by the device driver.
+	RxMulticast  uint64 `json:"rx_multicast"`  // Cumulative count of multicast frames received by the device driver.
+	TxBytes      uint64 `json:"tx_bytes"`      // Cumulative count of bytes transmitted.
+	TxPackets    uint64 `json:"tx_packets"`    // Cumulative count of packets transmitted.
+	TxErrors     uint64 `json:"tx_errors"`     // Cumulative count of transmit errors encountered.
+	TxDropped    uint64 `json:"tx_dropped"`    // Cumulative count of packets dropped while transmitting.
+	TxFIFO       uint64 `json:"tx_fifo"`       // Cumulative count of FIFO buffer errors.
+	TxCollisions uint64 `json:"tx_collisions"` // Cumulative count of collisions detected on the interface.
+	TxCarrier    uint64 `json:"tx_carrier"`    // Cumulative count of carrier losses detected by the device driver.
+	TxCompressed uint64 `json:"tx_compressed"` // Cumulative count of compressed packets transmitted by the device driver.
+}
+
+// NetDev is parsed from /proc/net/dev or /proc/[pid]/net/dev. The map keys
+// are interface names.
+type NetDev map[string]NetDevLine
+
+// NewNetDev returns kernel/system statistics read from /proc/net/dev.
+func NewNetDev() (NetDev, error) {
+	fs, err := NewFS(DefaultMountPoint)
+	if err != nil {
+		return nil, err
+	}
+
+	return fs.NewNetDev()
+}
+
+// NewNetDev returns kernel/system statistics read from /proc/net/dev.
+func (fs FS) NewNetDev() (NetDev, error) {
+	return newNetDev(fs.Path("net/dev"))
+}
+
+// NewNetDev returns kernel/system statistics read from /proc/[pid]/net/dev.
+func (p Proc) NewNetDev() (NetDev, error) {
+	return newNetDev(p.path("net/dev"))
+}
+
+// newNetDev creates a new NetDev from the contents of the given file.
+func newNetDev(file string) (NetDev, error) {
+	f, err := os.Open(file)
+	if err != nil {
+		return NetDev{}, err
+	}
+	defer f.Close()
+
+	nd := NetDev{}
+	s := bufio.NewScanner(f)
+	for n := 0; s.Scan(); n++ {
+		// Skip the 2 header lines.
+		if n < 2 {
+			continue
+		}
+
+		line, err := nd.parseLine(s.Text())
+		if err != nil {
+			return nd, err
+		}
+
+		nd[line.Name] = *line
+	}
+
+	return nd, s.Err()
+}
+
+// parseLine parses a single line from the /proc/net/dev file. Header lines
+// must be filtered prior to calling this method.
+func (nd NetDev) parseLine(rawLine string) (*NetDevLine, error) {
+	parts := strings.SplitN(rawLine, ":", 2)
+	if len(parts) != 2 {
+		return nil, errors.New("invalid net/dev line, missing colon")
+	}
+	fields := strings.Fields(strings.TrimSpace(parts[1]))
+
+	var err error
+	line := &NetDevLine{}
+
+	// Interface Name
+	line.Name = strings.TrimSpace(parts[0])
+	if line.Name == "" {
+		return nil, errors.New("invalid net/dev line, empty interface name")
+	}
+
+	// RX
+	line.RxBytes, err = strconv.ParseUint(fields[0], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxPackets, err = strconv.ParseUint(fields[1], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxErrors, err = strconv.ParseUint(fields[2], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxDropped, err = strconv.ParseUint(fields[3], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxFIFO, err = strconv.ParseUint(fields[4], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxFrame, err = strconv.ParseUint(fields[5], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxCompressed, err = strconv.ParseUint(fields[6], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.RxMulticast, err = strconv.ParseUint(fields[7], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+
+	// TX
+	line.TxBytes, err = strconv.ParseUint(fields[8], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxPackets, err = strconv.ParseUint(fields[9], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxErrors, err = strconv.ParseUint(fields[10], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxDropped, err = strconv.ParseUint(fields[11], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxFIFO, err = strconv.ParseUint(fields[12], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxCollisions, err = strconv.ParseUint(fields[13], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxCarrier, err = strconv.ParseUint(fields[14], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+	line.TxCompressed, err = strconv.ParseUint(fields[15], 10, 64)
+	if err != nil {
+		return nil, err
+	}
+
+	return line, nil
+}
+
+// Total aggregates the values across interfaces and returns a new NetDevLine.
+// The Name field will be a sorted comma seperated list of interface names.
+func (nd NetDev) Total() NetDevLine {
+	total := NetDevLine{}
+
+	names := make([]string, 0, len(nd))
+	for _, ifc := range nd {
+		names = append(names, ifc.Name)
+		total.RxBytes += ifc.RxBytes
+		total.RxPackets += ifc.RxPackets
+		total.RxPackets += ifc.RxPackets
+		total.RxErrors += ifc.RxErrors
+		total.RxDropped += ifc.RxDropped
+		total.RxFIFO += ifc.RxFIFO
+		total.RxFrame += ifc.RxFrame
+		total.RxCompressed += ifc.RxCompressed
+		total.RxMulticast += ifc.RxMulticast
+		total.TxBytes += ifc.TxBytes
+		total.TxPackets += ifc.TxPackets
+		total.TxErrors += ifc.TxErrors
+		total.TxDropped += ifc.TxDropped
+		total.TxFIFO += ifc.TxFIFO
+		total.TxCollisions += ifc.TxCollisions
+		total.TxCarrier += ifc.TxCarrier
+		total.TxCompressed += ifc.TxCompressed
+	}
+	sort.Strings(names)
+	total.Name = strings.Join(names, ", ")
+
+	return total
+}
diff --git a/vendor/github.com/prometheus/procfs/net_dev_test.go b/vendor/github.com/prometheus/procfs/net_dev_test.go
new file mode 100644
index 000000000..a69d8b9b8
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/net_dev_test.go
@@ -0,0 +1,73 @@
+package procfs
+
+import (
+	"testing"
+)
+
+func TestNetDevParseLine(t *testing.T) {
+	const rawLine = `  eth0: 1 2 3    4    5     6          7         8 9  10    11    12    13     14       15          16`
+
+	have, err := NetDev{}.parseLine(rawLine)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	want := NetDevLine{"eth0", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
+	if want != *have {
+		t.Errorf("want %v, have %v", want, have)
+	}
+}
+
+func TestNewNetDev(t *testing.T) {
+	fs, err := NewFS("fixtures")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	nd, err := fs.NewNetDev()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	lines := map[string]NetDevLine{
+		"vethf345468": {Name: "vethf345468", RxBytes: 648, RxPackets: 8, TxBytes: 438, TxPackets: 5},
+		"lo":          {Name: "lo", RxBytes: 1664039048, RxPackets: 1566805, TxBytes: 1664039048, TxPackets: 1566805},
+		"docker0":     {Name: "docker0", RxBytes: 2568, RxPackets: 38, TxBytes: 438, TxPackets: 5},
+		"eth0":        {Name: "eth0", RxBytes: 874354587, RxPackets: 1036395, TxBytes: 563352563, TxPackets: 732147},
+	}
+
+	if want, have := len(lines), len(nd); want != have {
+		t.Errorf("want %d parsed net/dev lines, have %d", want, have)
+	}
+	for _, line := range nd {
+		if want, have := lines[line.Name], line; want != have {
+			t.Errorf("%s: want %v, have %v", line.Name, want, have)
+		}
+	}
+}
+
+func TestProcNewNetDev(t *testing.T) {
+	p, err := FS("fixtures").NewProc(26231)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	nd, err := p.NewNetDev()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	lines := map[string]NetDevLine{
+		"lo":   {Name: "lo"},
+		"eth0": {Name: "eth0", RxBytes: 438, RxPackets: 5, TxBytes: 648, TxPackets: 8},
+	}
+
+	if want, have := len(lines), len(nd); want != have {
+		t.Errorf("want %d parsed net/dev lines, have %d", want, have)
+	}
+	for _, line := range nd {
+		if want, have := lines[line.Name], line; want != have {
+			t.Errorf("%s: want %v, have %v", line.Name, want, have)
+		}
+	}
+}
diff --git a/vendor/github.com/prometheus/procfs/proc_io.go b/vendor/github.com/prometheus/procfs/proc_io.go
index b4e31d7ba..e7f6674d0 100644
--- a/vendor/github.com/prometheus/procfs/proc_io.go
+++ b/vendor/github.com/prometheus/procfs/proc_io.go
@@ -47,9 +47,6 @@ func (p Proc) NewIO() (ProcIO, error) {
 
 	_, err = fmt.Sscanf(string(data), ioFormat, &pio.RChar, &pio.WChar, &pio.SyscR,
 		&pio.SyscW, &pio.ReadBytes, &pio.WriteBytes, &pio.CancelledWriteBytes)
-	if err != nil {
-		return pio, err
-	}
 
-	return pio, nil
+	return pio, err
 }
diff --git a/vendor/github.com/prometheus/procfs/proc_ns.go b/vendor/github.com/prometheus/procfs/proc_ns.go
new file mode 100644
index 000000000..befdd2690
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/proc_ns.go
@@ -0,0 +1,55 @@
+package procfs
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// Namespace represents a single namespace of a process.
+type Namespace struct {
+	Type  string // Namespace type.
+	Inode uint32 // Inode number of the namespace. If two processes are in the same namespace their inodes will match.
+}
+
+// Namespaces contains all of the namespaces that the process is contained in.
+type Namespaces map[string]Namespace
+
+// NewNamespaces reads from /proc/[pid/ns/* to get the namespaces of which the
+// process is a member.
+func (p Proc) NewNamespaces() (Namespaces, error) {
+	d, err := os.Open(p.path("ns"))
+	if err != nil {
+		return nil, err
+	}
+	defer d.Close()
+
+	names, err := d.Readdirnames(-1)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read contents of ns dir: %v", err)
+	}
+
+	ns := make(Namespaces, len(names))
+	for _, name := range names {
+		target, err := os.Readlink(p.path("ns", name))
+		if err != nil {
+			return nil, err
+		}
+
+		fields := strings.SplitN(target, ":", 2)
+		if len(fields) != 2 {
+			return nil, fmt.Errorf("failed to parse namespace type and inode from '%v'", target)
+		}
+
+		typ := fields[0]
+		inode, err := strconv.ParseUint(strings.Trim(fields[1], "[]"), 10, 32)
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse inode from '%v': %v", fields[1], err)
+		}
+
+		ns[name] = Namespace{typ, uint32(inode)}
+	}
+
+	return ns, nil
+}
diff --git a/vendor/github.com/prometheus/procfs/proc_ns_test.go b/vendor/github.com/prometheus/procfs/proc_ns_test.go
new file mode 100644
index 000000000..aea3f6a6c
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/proc_ns_test.go
@@ -0,0 +1,31 @@
+package procfs
+
+import (
+	"testing"
+)
+
+func TestNewNamespaces(t *testing.T) {
+	p, err := FS("fixtures").NewProc(26231)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	namespaces, err := p.NewNamespaces()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	expectedNamespaces := map[string]Namespace{
+		"mnt": {"mnt", 4026531840},
+		"net": {"net", 4026531993},
+	}
+
+	if want, have := len(expectedNamespaces), len(namespaces); want != have {
+		t.Errorf("want %d parsed namespaces, have %d", want, have)
+	}
+	for _, ns := range namespaces {
+		if want, have := expectedNamespaces[ns.Type], ns; want != have {
+			t.Errorf("%s: want %v, have %v", ns.Type, want, have)
+		}
+	}
+}
-- 
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