[lxc-devel] [lxd/master] Export and use the address scope

stgraber on Github lxc-bot at linuxcontainers.org
Wed Feb 24 20:27:08 UTC 2016


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From ba613e076ca598a16cc2a7262289c8c8273a31a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Graber?= <stgraber at ubuntu.com>
Date: Wed, 24 Feb 2016 15:26:45 -0500
Subject: [PATCH] Export and use the address scope
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Stéphane Graber <stgraber at ubuntu.com>
---
 lxc/list.go         |  8 ++++++++
 lxd/main.go         | 18 ++++++++++++++++++
 shared/container.go |  1 +
 specs/rest-api.md   | 27 ++++++++++++++++++---------
 4 files changed, 45 insertions(+), 9 deletions(-)

diff --git a/lxc/list.go b/lxc/list.go
index 949222e..06b227e 100644
--- a/lxc/list.go
+++ b/lxc/list.go
@@ -374,6 +374,10 @@ func (c *listCmd) IP4ColumnData(cInfo shared.ContainerInfo, cState *shared.Conta
 			}
 
 			for _, addr := range net.Addresses {
+				if shared.StringInSlice(addr.Scope, []string{"link", "local"}) {
+					continue
+				}
+
 				if addr.Family == "inet" {
 					ipv4s = append(ipv4s, fmt.Sprintf("%s (%s)", addr.Address, netName))
 				}
@@ -394,6 +398,10 @@ func (c *listCmd) IP6ColumnData(cInfo shared.ContainerInfo, cState *shared.Conta
 			}
 
 			for _, addr := range net.Addresses {
+				if shared.StringInSlice(addr.Scope, []string{"link", "local"}) {
+					continue
+				}
+
 				if addr.Family == "inet6" {
 					ipv6s = append(ipv6s, fmt.Sprintf("%s (%s)", addr.Address, netName))
 				}
diff --git a/lxd/main.go b/lxd/main.go
index 2a49ecd..5446033 100644
--- a/lxd/main.go
+++ b/lxd/main.go
@@ -871,10 +871,28 @@ func printnet() error {
 					family = "inet6"
 				}
 
+				scope := "global"
+				if strings.HasPrefix(fields[0], "127") {
+					scope = "local"
+				}
+
+				if fields[0] == "::1" {
+					scope = "local"
+				}
+
+				if strings.HasPrefix(fields[0], "169.254") {
+					scope = "link"
+				}
+
+				if strings.HasPrefix(fields[0], "fe80:") {
+					scope = "link"
+				}
+
 				address := shared.ContainerStateNetworkAddress{}
 				address.Family = family
 				address.Address = fields[0]
 				address.Netmask = fields[1]
+				address.Scope = scope
 
 				network.Addresses = append(network.Addresses, address)
 			}
diff --git a/shared/container.go b/shared/container.go
index b7605b6..58bcd8d 100644
--- a/shared/container.go
+++ b/shared/container.go
@@ -39,6 +39,7 @@ type ContainerStateNetworkAddress struct {
 	Family  string `json:"family"`
 	Address string `json:"address"`
 	Netmask string `json:"netmask"`
+	Scope   string `json:"scope"`
 }
 
 type ContainerStateNetworkCounters struct {
diff --git a/specs/rest-api.md b/specs/rest-api.md
index fe4b4b5..621aca4 100644
--- a/specs/rest-api.md
+++ b/specs/rest-api.md
@@ -643,12 +643,14 @@ HTTP code for this should be 202 (Accepted).
                         {
                             "family": "inet",
                             "address": "10.0.3.27",
-                            "netmask": "24"
+                            "netmask": "24",
+                            "scope": "global"
                         },
                         {
                             "family": "inet6",
                             "address": "fe80::216:3eff:feec:65a8",
-                            "netmask": "64"
+                            "netmask": "64",
+                            "scope": "link"
                         }
                     ],
                     "counters": {
@@ -668,12 +670,14 @@ HTTP code for this should be 202 (Accepted).
                         {
                             "family": "inet",
                             "address": "127.0.0.1",
-                            "netmask": "8"
+                            "netmask": "8",
+                            "scope": "local"
                         },
                         {
                             "family": "inet6",
                             "address": "::1",
-                            "netmask": "128"
+                            "netmask": "128",
+                            "scope": "local"
                         }
                     ],
                     "counters": {
@@ -693,12 +697,14 @@ HTTP code for this should be 202 (Accepted).
                         {
                             "family": "inet",
                             "address": "10.0.3.1",
-                            "netmask": "24"
+                            "netmask": "24",
+                            "scope": "global"
                         },
                         {
                             "family": "inet6",
                             "address": "fe80::68d4:87ff:fe40:7769",
-                            "netmask": "64"
+                            "netmask": "64",
+                            "scope": "link"
                         }
                     ],
                     "counters": {
@@ -718,17 +724,20 @@ HTTP code for this should be 202 (Accepted).
                         {
                             "family": "inet",
                             "address": "29.17.181.59",
-                            "netmask": "7"
+                            "netmask": "7",
+                            "scope": "global"
                         },
                         {
                             "family": "inet6",
                             "address": "fd80:56c2:e21c:0:199:9379:e711:b3e1",
-                            "netmask": "88"
+                            "netmask": "88",
+                            "scope": "global"
                         },
                         {
                             "family": "inet6",
                             "address": "fe80::79:e7ff:fe0d:5123",
-                            "netmask": "64"
+                            "netmask": "64",
+                            "scope": "link"
                         }
                     ],
                     "counters": {


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