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Merge pull request #12664 from Mashimiao/sysinfo-support-ipv4_forward-check

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sysinfo: add IPv4Forwarding check
This commit is contained in:
Brian Goff 2015-04-30 11:44:44 -04:00
commit d461ce8fc7
1 changed files with 13 additions and 0 deletions
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13
sysinfo/sysinfo.go
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@ -4,6 +4,8 @@ import (
"io/ioutil" "io/ioutil"
"os" "os"
"path" "path"
"strconv"
"strings"
"github.com/Sirupsen/logrus" "github.com/Sirupsen/logrus"
"github.com/docker/libcontainer/cgroups" "github.com/docker/libcontainer/cgroups"
@ -48,6 +50,17 @@ func New(quiet bool) *SysInfo {
} }
} }
// Checek if ipv4_forward is disabled.
if data, err := ioutil.ReadFile("/proc/sys/net/ipv4/ip_forward"); os.IsNotExist(err) {
sysInfo.IPv4ForwardingDisabled = true
} else {
if enabled, _ := strconv.Atoi(strings.TrimSpace(string(data))); enabled == 0 {
sysInfo.IPv4ForwardingDisabled = true
} else {
sysInfo.IPv4ForwardingDisabled = false
}
}
// Check if AppArmor is supported. // Check if AppArmor is supported.
if _, err := os.Stat("/sys/kernel/security/apparmor"); os.IsNotExist(err) { if _, err := os.Stat("/sys/kernel/security/apparmor"); os.IsNotExist(err) {
sysInfo.AppArmor = false sysInfo.AppArmor = false