diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json index 9e0290c78f7..dba35991592 100644 --- a/Godeps/Godeps.json +++ b/Godeps/Godeps.json @@ -825,6 +825,14 @@ "Comment": "v1.0.4", "Rev": "71acacd42f85e5e82f70a55327789582a5200a90" }, + { + "ImportPath": "github.com/d2g/dhcp4", + "Rev": "a1d1b6c41b1ce8a71a5121a9cee31809c4707d9c" + }, + { + "ImportPath": "github.com/d2g/dhcp4client", + "Rev": "6e570ed0a266b730a860ba1068090f683b2c213a" + }, { "ImportPath": "github.com/davecgh/go-spew/spew", "Comment": "v1.1.0-1-g782f496", diff --git a/Godeps/LICENSES b/Godeps/LICENSES index a1d6c00de78..b3d02f7c8d9 100644 --- a/Godeps/LICENSES +++ b/Godeps/LICENSES @@ -29106,6 +29106,402 @@ SOFTWARE. ================================================================================ +================================================================================ += vendor/github.com/d2g/dhcp4 licensed under: = + +Copyright (c) 2013 Skagerrak Software Limited. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Skagerrak Software Limited nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. += vendor/github.com/d2g/dhcp4/LICENSE 0187683301a45e8ea393bb2ffd7889c8 +================================================================================ + + +================================================================================ += vendor/github.com/d2g/dhcp4client licensed under: = + +Mozilla Public License, version 2.0 + +1. Definitions + +1.1. “Contributor” + + means each individual or legal entity that creates, contributes to the + creation of, or owns Covered Software. + +1.2. “Contributor Version” + + means the combination of the Contributions of others (if any) used by a + Contributor and that particular Contributor’s Contribution. + +1.3. “Contribution” + + means Covered Software of a particular Contributor. + +1.4. “Covered Software” + + means Source Code Form to which the initial Contributor has attached the + notice in Exhibit A, the Executable Form of such Source Code Form, and + Modifications of such Source Code Form, in each case including portions + thereof. + +1.5. “Incompatible With Secondary Licenses” + means + + a. that the initial Contributor has attached the notice described in + Exhibit B to the Covered Software; or + + b. that the Covered Software was made available under the terms of version + 1.1 or earlier of the License, but not also under the terms of a + Secondary License. + +1.6. “Executable Form” + + means any form of the work other than Source Code Form. + +1.7. “Larger Work” + + means a work that combines Covered Software with other material, in a separate + file or files, that is not Covered Software. + +1.8. “License” + + means this document. + +1.9. “Licensable” + + means having the right to grant, to the maximum extent possible, whether at the + time of the initial grant or subsequently, any and all of the rights conveyed by + this License. + +1.10. “Modifications” + + means any of the following: + + a. any file in Source Code Form that results from an addition to, deletion + from, or modification of the contents of Covered Software; or + + b. any new file in Source Code Form that contains any Covered Software. + +1.11. “Patent Claims” of a Contributor + + means any patent claim(s), including without limitation, method, process, + and apparatus claims, in any patent Licensable by such Contributor that + would be infringed, but for the grant of the License, by the making, + using, selling, offering for sale, having made, import, or transfer of + either its Contributions or its Contributor Version. + +1.12. “Secondary License” + + means either the GNU General Public License, Version 2.0, the GNU Lesser + General Public License, Version 2.1, the GNU Affero General Public + License, Version 3.0, or any later versions of those licenses. + +1.13. “Source Code Form” + + means the form of the work preferred for making modifications. + +1.14. “You” (or “Your”) + + means an individual or a legal entity exercising rights under this + License. For legal entities, “You” includes any entity that controls, is + controlled by, or is under common control with You. For purposes of this + definition, “control” means (a) the power, direct or indirect, to cause + the direction or management of such entity, whether by contract or + otherwise, or (b) ownership of more than fifty percent (50%) of the + outstanding shares or beneficial ownership of such entity. + + +2. License Grants and Conditions + +2.1. Grants + + Each Contributor hereby grants You a world-wide, royalty-free, + non-exclusive license: + + a. under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or as + part of a Larger Work; and + + b. under Patent Claims of such Contributor to make, use, sell, offer for + sale, have made, import, and otherwise transfer either its Contributions + or its Contributor Version. + +2.2. Effective Date + + The licenses granted in Section 2.1 with respect to any Contribution become + effective for each Contribution on the date the Contributor first distributes + such Contribution. + +2.3. Limitations on Grant Scope + + The licenses granted in this Section 2 are the only rights granted under this + License. No additional rights or licenses will be implied from the distribution + or licensing of Covered Software under this License. Notwithstanding Section + 2.1(b) above, no patent license is granted by a Contributor: + + a. for any code that a Contributor has removed from Covered Software; or + + b. for infringements caused by: (i) Your and any other third party’s + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + + c. under Patent Claims infringed by Covered Software in the absence of its + Contributions. + + This License does not grant any rights in the trademarks, service marks, or + logos of any Contributor (except as may be necessary to comply with the + notice requirements in Section 3.4). + +2.4. Subsequent Licenses + + No Contributor makes additional grants as a result of Your choice to + distribute the Covered Software under a subsequent version of this License + (see Section 10.2) or under the terms of a Secondary License (if permitted + under the terms of Section 3.3). + +2.5. Representation + + Each Contributor represents that the Contributor believes its Contributions + are its original creation(s) or it has sufficient rights to grant the + rights to its Contributions conveyed by this License. + +2.6. Fair Use + + This License is not intended to limit any rights You have under applicable + copyright doctrines of fair use, fair dealing, or other equivalents. + +2.7. Conditions + + Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in + Section 2.1. + + +3. Responsibilities + +3.1. Distribution of Source Form + + All distribution of Covered Software in Source Code Form, including any + Modifications that You create or to which You contribute, must be under the + terms of this License. You must inform recipients that the Source Code Form + of the Covered Software is governed by the terms of this License, and how + they can obtain a copy of this License. You may not attempt to alter or + restrict the recipients’ rights in the Source Code Form. + +3.2. Distribution of Executable Form + + If You distribute Covered Software in Executable Form then: + + a. such Covered Software must also be made available in Source Code Form, + as described in Section 3.1, and You must inform recipients of the + Executable Form how they can obtain a copy of such Source Code Form by + reasonable means in a timely manner, at a charge no more than the cost + of distribution to the recipient; and + + b. You may distribute such Executable Form under the terms of this License, + or sublicense it under different terms, provided that the license for + the Executable Form does not attempt to limit or alter the recipients’ + rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + + You may create and distribute a Larger Work under terms of Your choice, + provided that You also comply with the requirements of this License for the + Covered Software. If the Larger Work is a combination of Covered Software + with a work governed by one or more Secondary Licenses, and the Covered + Software is not Incompatible With Secondary Licenses, this License permits + You to additionally distribute such Covered Software under the terms of + such Secondary License(s), so that the recipient of the Larger Work may, at + their option, further distribute the Covered Software under the terms of + either this License or such Secondary License(s). + +3.4. Notices + + You may not remove or alter the substance of any license notices (including + copyright notices, patent notices, disclaimers of warranty, or limitations + of liability) contained within the Source Code Form of the Covered + Software, except that You may alter any license notices to the extent + required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + + You may choose to offer, and to charge a fee for, warranty, support, + indemnity or liability obligations to one or more recipients of Covered + Software. However, You may do so only on Your own behalf, and not on behalf + of any Contributor. You must make it absolutely clear that any such + warranty, support, indemnity, or liability obligation is offered by You + alone, and You hereby agree to indemnify every Contributor for any + liability incurred by such Contributor as a result of warranty, support, + indemnity or liability terms You offer. You may include additional + disclaimers of warranty and limitations of liability specific to any + jurisdiction. + +4. Inability to Comply Due to Statute or Regulation + + If it is impossible for You to comply with any of the terms of this License + with respect to some or all of the Covered Software due to statute, judicial + order, or regulation then You must: (a) comply with the terms of this License + to the maximum extent possible; and (b) describe the limitations and the code + they affect. Such description must be placed in a text file included with all + distributions of the Covered Software under this License. Except to the + extent prohibited by statute or regulation, such description must be + sufficiently detailed for a recipient of ordinary skill to be able to + understand it. + +5. Termination + +5.1. The rights granted under this License will terminate automatically if You + fail to comply with any of its terms. However, if You become compliant, + then the rights granted under this License from a particular Contributor + are reinstated (a) provisionally, unless and until such Contributor + explicitly and finally terminates Your grants, and (b) on an ongoing basis, + if such Contributor fails to notify You of the non-compliance by some + reasonable means prior to 60 days after You have come back into compliance. + Moreover, Your grants from a particular Contributor are reinstated on an + ongoing basis if such Contributor notifies You of the non-compliance by + some reasonable means, this is the first time You have received notice of + non-compliance with this License from such Contributor, and You become + compliant prior to 30 days after Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent + infringement claim (excluding declaratory judgment actions, counter-claims, + and cross-claims) alleging that a Contributor Version directly or + indirectly infringes any patent, then the rights granted to You by any and + all Contributors for the Covered Software under Section 2.1 of this License + shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user + license agreements (excluding distributors and resellers) which have been + validly granted by You or Your distributors under this License prior to + termination shall survive termination. + +6. Disclaimer of Warranty + + Covered Software is provided under this License on an “as is” basis, without + warranty of any kind, either expressed, implied, or statutory, including, + without limitation, warranties that the Covered Software is free of defects, + merchantable, fit for a particular purpose or non-infringing. The entire + risk as to the quality and performance of the Covered Software is with You. + Should any Covered Software prove defective in any respect, You (not any + Contributor) assume the cost of any necessary servicing, repair, or + correction. This disclaimer of warranty constitutes an essential part of this + License. No use of any Covered Software is authorized under this License + except under this disclaimer. + +7. Limitation of Liability + + Under no circumstances and under no legal theory, whether tort (including + negligence), contract, or otherwise, shall any Contributor, or anyone who + distributes Covered Software as permitted above, be liable to You for any + direct, indirect, special, incidental, or consequential damages of any + character including, without limitation, damages for lost profits, loss of + goodwill, work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses, even if such party shall have been + informed of the possibility of such damages. This limitation of liability + shall not apply to liability for death or personal injury resulting from such + party’s negligence to the extent applicable law prohibits such limitation. + Some jurisdictions do not allow the exclusion or limitation of incidental or + consequential damages, so this exclusion and limitation may not apply to You. + +8. Litigation + + Any litigation relating to this License may be brought only in the courts of + a jurisdiction where the defendant maintains its principal place of business + and such litigation shall be governed by laws of that jurisdiction, without + reference to its conflict-of-law provisions. Nothing in this Section shall + prevent a party’s ability to bring cross-claims or counter-claims. + +9. Miscellaneous + + This License represents the complete agreement concerning the subject matter + hereof. If any provision of this License is held to be unenforceable, such + provision shall be reformed only to the extent necessary to make it + enforceable. Any law or regulation which provides that the language of a + contract shall be construed against the drafter shall not be used to construe + this License against a Contributor. + + +10. Versions of the License + +10.1. New Versions + + Mozilla Foundation is the license steward. Except as provided in Section + 10.3, no one other than the license steward has the right to modify or + publish new versions of this License. Each version will be given a + distinguishing version number. + +10.2. Effect of New Versions + + You may distribute the Covered Software under the terms of the version of + the License under which You originally received the Covered Software, or + under the terms of any subsequent version published by the license + steward. + +10.3. Modified Versions + + If you create software not governed by this License, and you want to + create a new license for such software, you may create and use a modified + version of this License if you rename the license and remove any + references to the name of the license steward (except to note that such + modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses + If You choose to distribute Source Code Form that is Incompatible With + Secondary Licenses under the terms of this version of the License, the + notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice + + This Source Code Form is subject to the + terms of the Mozilla Public License, v. + 2.0. If a copy of the MPL was not + distributed with this file, You can + obtain one at + http://mozilla.org/MPL/2.0/. + +If it is not possible or desirable to put the notice in a particular file, then +You may include the notice in a location (such as a LICENSE file in a relevant +directory) where a recipient would be likely to look for such a notice. + +You may add additional accurate notices of copyright ownership. + +Exhibit B - “Incompatible With Secondary Licenses” Notice + + This Source Code Form is “Incompatible + With Secondary Licenses”, as defined by + the Mozilla Public License, v. 2.0. + + += vendor/github.com/d2g/dhcp4client/LICENSE b278a92d2c1509760384428817710378 +================================================================================ + + ================================================================================ = vendor/github.com/davecgh/go-spew/spew licensed under: = diff --git a/pkg/cloudprovider/providers/cloudstack/BUILD b/pkg/cloudprovider/providers/cloudstack/BUILD index 0302fae33e4..47a548ad788 100644 --- a/pkg/cloudprovider/providers/cloudstack/BUILD +++ b/pkg/cloudprovider/providers/cloudstack/BUILD @@ -10,12 +10,23 @@ go_library( name = "go_default_library", srcs = [ "cloudstack.go", + "cloudstack_instances.go", "cloudstack_loadbalancer.go", - ], + "metadata.go", + "metadata_other.go", + ] + select({ + "@io_bazel_rules_go//go/platform:linux_amd64": [ + "metadata_linux.go", + ], + "//conditions:default": [], + }), deps = [ "//pkg/cloudprovider:go_default_library", "//pkg/controller:go_default_library", + "//vendor/github.com/d2g/dhcp4:go_default_library", + "//vendor/github.com/d2g/dhcp4client:go_default_library", "//vendor/github.com/golang/glog:go_default_library", + "//vendor/github.com/kardianos/osext:go_default_library", "//vendor/github.com/xanzy/go-cloudstack/cloudstack:go_default_library", "//vendor/gopkg.in/gcfg.v1:go_default_library", "//vendor/k8s.io/api/core/v1:go_default_library", diff --git a/pkg/cloudprovider/providers/cloudstack/cloudstack.go b/pkg/cloudprovider/providers/cloudstack/cloudstack.go index 4e0bea291e2..e4979a75c42 100644 --- a/pkg/cloudprovider/providers/cloudstack/cloudstack.go +++ b/pkg/cloudprovider/providers/cloudstack/cloudstack.go @@ -20,11 +20,13 @@ import ( "errors" "fmt" "io" + "os" + "path/filepath" "github.com/golang/glog" + "github.com/kardianos/osext" "github.com/xanzy/go-cloudstack/cloudstack" "gopkg.in/gcfg.v1" - "k8s.io/apimachinery/pkg/types" "k8s.io/kubernetes/pkg/cloudprovider" "k8s.io/kubernetes/pkg/controller" @@ -48,6 +50,7 @@ type CSConfig struct { // CSCloud is an implementation of Interface for CloudStack. type CSCloud struct { client *cloudstack.CloudStackClient + metadata *metadata projectID string // If non-"", all resources will be created within this project zone string } @@ -64,15 +67,14 @@ func init() { } func readConfig(config io.Reader) (*CSConfig, error) { + cfg := &CSConfig{} + if config == nil { - err := fmt.Errorf("no cloud provider config given") - return nil, err + return cfg, nil } - cfg := &CSConfig{} if err := gcfg.ReadInto(cfg, config); err != nil { - glog.Errorf("Couldn't parse config: %v", err) - return nil, err + return nil, fmt.Errorf("could not parse cloud provider config: %v", err) } return cfg, nil @@ -80,9 +82,42 @@ func readConfig(config io.Reader) (*CSConfig, error) { // newCSCloud creates a new instance of CSCloud. func newCSCloud(cfg *CSConfig) (*CSCloud, error) { - client := cloudstack.NewAsyncClient(cfg.Global.APIURL, cfg.Global.APIKey, cfg.Global.SecretKey, !cfg.Global.SSLNoVerify) + cs := &CSCloud{ + projectID: cfg.Global.ProjectID, + zone: cfg.Global.Zone, + } - return &CSCloud{client, cfg.Global.ProjectID, cfg.Global.Zone}, nil + exe, err := osext.Executable() + if err != nil { + return nil, fmt.Errorf("cloud not find the service executable: %v", err) + } + + // When running the kubelet service it's fine to not specify a config file (or only a + // partial config file) as all needed info can be retrieved anonymously using metadata. + if filepath.Base(exe) == "kubelet" || filepath.Base(exe) == "kubelet.exe" { + // In CloudStack your metadata is always served by the DHCP server. + dhcpServer, err := findDHCPServer() + if err == nil { + glog.V(4).Infof("Found metadata server: %v", dhcpServer) + cs.metadata = &metadata{dhcpServer: dhcpServer, zone: cs.zone} + } else { + glog.Errorf("Error searching metadata server: %v", err) + } + } + + if cfg.Global.APIURL != "" && cfg.Global.APIKey != "" && cfg.Global.SecretKey != "" { + cs.client = cloudstack.NewAsyncClient(cfg.Global.APIURL, cfg.Global.APIKey, cfg.Global.SecretKey, !cfg.Global.SSLNoVerify) + } + + if cs.client == nil { + if cs.metadata != nil { + glog.V(2).Infof("No API URL, key and secret are provided, so only using metadata!") + } else { + return nil, errors.New("no cloud provider config given") + } + } + + return cs, nil } // Initialize passes a Kubernetes clientBuilder interface to the cloud provider @@ -90,26 +125,54 @@ func (cs *CSCloud) Initialize(clientBuilder controller.ControllerClientBuilder) // LoadBalancer returns an implementation of LoadBalancer for CloudStack. func (cs *CSCloud) LoadBalancer() (cloudprovider.LoadBalancer, bool) { + if cs.client == nil { + return nil, false + } + return cs, true } // Instances returns an implementation of Instances for CloudStack. func (cs *CSCloud) Instances() (cloudprovider.Instances, bool) { - return nil, false + if cs.metadata != nil { + return cs.metadata, true + } + + if cs.client == nil { + return nil, false + } + + return cs, true } // Zones returns an implementation of Zones for CloudStack. func (cs *CSCloud) Zones() (cloudprovider.Zones, bool) { + if cs.metadata != nil { + return cs.metadata, true + } + + if cs.client == nil { + return nil, false + } + return cs, true } // Clusters returns an implementation of Clusters for CloudStack. func (cs *CSCloud) Clusters() (cloudprovider.Clusters, bool) { + if cs.client == nil { + return nil, false + } + return nil, false } // Routes returns an implementation of Routes for CloudStack. func (cs *CSCloud) Routes() (cloudprovider.Routes, bool) { + if cs.client == nil { + return nil, false + } + return nil, false } @@ -130,20 +193,72 @@ func (cs *CSCloud) HasClusterID() bool { // GetZone returns the Zone containing the region that the program is running in. func (cs *CSCloud) GetZone() (cloudprovider.Zone, error) { + zone := cloudprovider.Zone{} + + if cs.zone == "" { + hostname, err := os.Hostname() + if err != nil { + return zone, fmt.Errorf("failed to get hostname for retrieving the zone: %v", err) + } + + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByName(hostname) + if err != nil { + if count == 0 { + return zone, fmt.Errorf("could not find instance for retrieving the zone: %v", err) + } + return zone, fmt.Errorf("error getting instance for retrieving the zone: %v", err) + } + + cs.zone = instance.Zonename + } + glog.V(2).Infof("Current zone is %v", cs.zone) - return cloudprovider.Zone{Region: cs.zone}, nil + zone.FailureDomain = cs.zone + zone.Region = cs.zone + + return zone, nil } -// GetZoneByProviderID implements Zones.GetZoneByProviderID -// This is particularly useful in external cloud providers where the kubelet -// does not initialize node data. +// GetZoneByProviderID returns the Zone, found by using the provider ID. func (cs *CSCloud) GetZoneByProviderID(providerID string) (cloudprovider.Zone, error) { - return cloudprovider.Zone{}, errors.New("GetZoneByProviderID not implemented") + zone := cloudprovider.Zone{} + + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByID( + providerID, + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return zone, fmt.Errorf("could not find node by ID: %v", providerID) + } + return zone, fmt.Errorf("error retrieving zone: %v", err) + } + + glog.V(2).Infof("Current zone is %v", cs.zone) + zone.FailureDomain = instance.Zonename + zone.Region = instance.Zonename + + return zone, nil } -// GetZoneByNodeName implements Zones.GetZoneByNodeName -// This is particularly useful in external cloud providers where the kubelet -// does not initialize node data. +// GetZoneByNodeName returns the Zone, found by using the node name. func (cs *CSCloud) GetZoneByNodeName(nodeName types.NodeName) (cloudprovider.Zone, error) { - return cloudprovider.Zone{}, errors.New("GetZoneByNodeName not imeplemented") + zone := cloudprovider.Zone{} + + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByName( + string(nodeName), + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return zone, fmt.Errorf("could not find node: %v", nodeName) + } + return zone, fmt.Errorf("error retrieving zone: %v", err) + } + + glog.V(2).Infof("Current zone is %v", cs.zone) + zone.FailureDomain = instance.Zonename + zone.Region = instance.Zonename + + return zone, nil } diff --git a/pkg/cloudprovider/providers/cloudstack/cloudstack_instances.go b/pkg/cloudprovider/providers/cloudstack/cloudstack_instances.go new file mode 100644 index 00000000000..755012f1672 --- /dev/null +++ b/pkg/cloudprovider/providers/cloudstack/cloudstack_instances.go @@ -0,0 +1,159 @@ +/* +Copyright 2016 The Kubernetes 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 cloudstack + +import ( + "errors" + "fmt" + + "github.com/golang/glog" + "github.com/xanzy/go-cloudstack/cloudstack" + "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/types" + "k8s.io/kubernetes/pkg/cloudprovider" +) + +// NodeAddresses returns the addresses of the specified instance. +func (cs *CSCloud) NodeAddresses(name types.NodeName) ([]v1.NodeAddress, error) { + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByName( + string(name), + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return nil, cloudprovider.InstanceNotFound + } + return nil, fmt.Errorf("error retrieving node addresses: %v", err) + } + + return cs.nodeAddresses(instance) +} + +// NodeAddressesByProviderID returns the addresses of the specified instance. +func (cs *CSCloud) NodeAddressesByProviderID(providerID string) ([]v1.NodeAddress, error) { + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByID( + providerID, + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return nil, cloudprovider.InstanceNotFound + } + return nil, fmt.Errorf("error retrieving node addresses: %v", err) + } + + return cs.nodeAddresses(instance) +} + +func (cs *CSCloud) nodeAddresses(instance *cloudstack.VirtualMachine) ([]v1.NodeAddress, error) { + if len(instance.Nic) == 0 { + return nil, errors.New("instance does not have an internal IP") + } + + addresses := []v1.NodeAddress{ + {Type: v1.NodeInternalIP, Address: instance.Nic[0].Ipaddress}, + } + + if instance.Publicip != "" { + addresses = append(addresses, v1.NodeAddress{Type: v1.NodeExternalIP, Address: instance.Publicip}) + } else { + // Since there is no sane way to determine the external IP if the host isn't + // using static NAT, we will just fire a log message and omit the external IP. + glog.V(4).Infof("Could not determine the public IP of host %v (%v)", instance.Name, instance.Id) + } + + return addresses, nil +} + +// ExternalID returns the cloud provider ID of the specified instance (deprecated). +func (cs *CSCloud) ExternalID(name types.NodeName) (string, error) { + return cs.InstanceID(name) +} + +// InstanceID returns the cloud provider ID of the specified instance. +func (cs *CSCloud) InstanceID(name types.NodeName) (string, error) { + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByName( + string(name), + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return "", cloudprovider.InstanceNotFound + } + return "", fmt.Errorf("error retrieving instance ID: %v", err) + } + + return instance.Id, nil +} + +// InstanceType returns the type of the specified instance. +func (cs *CSCloud) InstanceType(name types.NodeName) (string, error) { + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByName( + string(name), + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return "", cloudprovider.InstanceNotFound + } + return "", fmt.Errorf("error retrieving instance type: %v", err) + } + + return instance.Serviceofferingname, nil +} + +// InstanceTypeByProviderID returns the type of the specified instance. +func (cs *CSCloud) InstanceTypeByProviderID(providerID string) (string, error) { + instance, count, err := cs.client.VirtualMachine.GetVirtualMachineByID( + providerID, + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return "", cloudprovider.InstanceNotFound + } + return "", fmt.Errorf("error retrieving instance type: %v", err) + } + + return instance.Serviceofferingname, nil +} + +// AddSSHKeyToAllInstances is currently not implemented. +func (cs *CSCloud) AddSSHKeyToAllInstances(user string, keyData []byte) error { + return errors.New("AddSSHKeyToAllInstances not implemented") +} + +// CurrentNodeName returns the name of the node we are currently running on. +func (cs *CSCloud) CurrentNodeName(hostname string) (types.NodeName, error) { + return types.NodeName(hostname), nil +} + +// InstanceExistsByProviderID returns if the instance still exists. +func (cs *CSCloud) InstanceExistsByProviderID(providerID string) (bool, error) { + _, count, err := cs.client.VirtualMachine.GetVirtualMachineByID( + providerID, + cloudstack.WithProject(cs.projectID), + ) + if err != nil { + if count == 0 { + return false, nil + } + return false, fmt.Errorf("error retrieving instance: %v", err) + } + + return true, nil +} diff --git a/pkg/cloudprovider/providers/cloudstack/cloudstack_test.go b/pkg/cloudprovider/providers/cloudstack/cloudstack_test.go index f1b8d82ed9c..4fd8463542b 100644 --- a/pkg/cloudprovider/providers/cloudstack/cloudstack_test.go +++ b/pkg/cloudprovider/providers/cloudstack/cloudstack_test.go @@ -30,8 +30,8 @@ const testClusterName = "testCluster" func TestReadConfig(t *testing.T) { _, err := readConfig(nil) - if err == nil { - t.Errorf("Should fail when no config is provided: %v", err) + if err != nil { + t.Fatalf("Should not return an error when no config is provided: %v", err) } cfg, err := readConfig(strings.NewReader(` @@ -41,7 +41,6 @@ func TestReadConfig(t *testing.T) { secret-key = a-valid-secret-key ssl-no-verify = true project-id = a-valid-project-id - zone = a-valid-zone `)) if err != nil { t.Fatalf("Should succeed when a valid config is provided: %v", err) @@ -59,9 +58,6 @@ func TestReadConfig(t *testing.T) { if !cfg.Global.SSLNoVerify { t.Errorf("incorrect ssl-no-verify: %t", cfg.Global.SSLNoVerify) } - if cfg.Global.Zone != "a-valid-zone" { - t.Errorf("incorrect zone: %s", cfg.Global.Zone) - } } // This allows acceptance testing against an existing CloudStack environment. @@ -72,7 +68,6 @@ func configFromEnv() (*CSConfig, bool) { cfg.Global.APIKey = os.Getenv("CS_API_KEY") cfg.Global.SecretKey = os.Getenv("CS_SECRET_KEY") cfg.Global.ProjectID = os.Getenv("CS_PROJECT_ID") - cfg.Global.Zone = os.Getenv("CS_ZONE") // It is save to ignore the error here. If the input cannot be parsed SSLNoVerify // will still be a bool with its zero value (false) which is the expected default. @@ -120,23 +115,3 @@ func TestLoadBalancer(t *testing.T) { t.Fatalf("GetLoadBalancer(\"noexist\") returned exists") } } - -func TestZones(t *testing.T) { - cs := &CSCloud{ - zone: "myRegion", - } - - z, ok := cs.Zones() - if !ok { - t.Fatalf("Zones() returned false") - } - - zone, err := z.GetZone() - if err != nil { - t.Fatalf("GetZone() returned error: %s", err) - } - - if zone.Region != "myRegion" { - t.Fatalf("GetZone() returned wrong region (%s)", zone.Region) - } -} diff --git a/pkg/cloudprovider/providers/cloudstack/metadata.go b/pkg/cloudprovider/providers/cloudstack/metadata.go new file mode 100644 index 00000000000..0ec991d1980 --- /dev/null +++ b/pkg/cloudprovider/providers/cloudstack/metadata.go @@ -0,0 +1,211 @@ +/* +Copyright 2016 The Kubernetes 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 cloudstack + +import ( + "errors" + "fmt" + "io/ioutil" + "net" + "net/http" + + "github.com/d2g/dhcp4" + "github.com/golang/glog" + "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/types" + "k8s.io/kubernetes/pkg/cloudprovider" +) + +type metadata struct { + dhcpServer string + zone string +} + +type metadataType string + +const ( + metadataTypeExternalIP metadataType = "public-ipv4" + metadataTypeInternalIP metadataType = "local-ipv4" + metadataTypeInstanceID metadataType = "instance-id" + metadataTypeInstanceType metadataType = "service-offering" + metadataTypeZone metadataType = "availability-zone" +) + +// NodeAddresses returns the addresses of the specified instance. +func (m *metadata) NodeAddresses(name types.NodeName) ([]v1.NodeAddress, error) { + externalIP, err := m.get(metadataTypeExternalIP) + if err != nil { + return nil, fmt.Errorf("could not get external IP: %v", err) + } + + internalIP, err := m.get(metadataTypeInternalIP) + if err != nil { + return nil, fmt.Errorf("could not get internal IP: %v", err) + } + + return []v1.NodeAddress{ + {Type: v1.NodeExternalIP, Address: externalIP}, + {Type: v1.NodeInternalIP, Address: internalIP}, + }, nil +} + +// NodeAddressesByProviderID returns the addresses of the specified instance. +func (m *metadata) NodeAddressesByProviderID(providerID string) ([]v1.NodeAddress, error) { + return nil, errors.New("NodeAddressesByProviderID not implemented") +} + +// ExternalID returns the cloud provider ID of the specified instance (deprecated). +func (m *metadata) ExternalID(name types.NodeName) (string, error) { + return m.InstanceID(name) +} + +// InstanceID returns the cloud provider ID of the specified instance. +func (m *metadata) InstanceID(name types.NodeName) (string, error) { + instanceID, err := m.get(metadataTypeInstanceID) + if err != nil { + return "", fmt.Errorf("could not get instance ID: %v", err) + } + + zone, err := m.get(metadataTypeZone) + if err != nil { + return "", fmt.Errorf("could not get zone: %v", err) + } + + return "/" + zone + "/" + instanceID, nil +} + +// InstanceType returns the type of the specified instance. +func (m *metadata) InstanceType(name types.NodeName) (string, error) { + instanceType, err := m.get(metadataTypeInstanceType) + if err == nil { + return "", fmt.Errorf("could not get instance type: %v", err) + } + + return instanceType, nil +} + +// InstanceTypeByProviderID returns the type of the specified instance. +func (m *metadata) InstanceTypeByProviderID(providerID string) (string, error) { + return "", errors.New("InstanceTypeByProviderID not implemented") +} + +// AddSSHKeyToAllInstances is currently not implemented. +func (m *metadata) AddSSHKeyToAllInstances(user string, keyData []byte) error { + return errors.New("AddSSHKeyToAllInstances not implemented") +} + +// CurrentNodeName returns the name of the node we are currently running on. +func (m *metadata) CurrentNodeName(hostname string) (types.NodeName, error) { + return types.NodeName(hostname), nil +} + +// InstanceExistsByProviderID returns if the instance still exists. +func (m *metadata) InstanceExistsByProviderID(providerID string) (bool, error) { + return false, errors.New("InstanceExistsByProviderID not implemented") +} + +// GetZone returns the Zone containing the region that the program is running in. +func (m *metadata) GetZone() (cloudprovider.Zone, error) { + zone := cloudprovider.Zone{} + + if m.zone == "" { + zoneName, err := m.get(metadataTypeZone) + if err != nil { + return zone, fmt.Errorf("could not get zone: %v", err) + } + + m.zone = zoneName + } + + glog.V(2).Infof("Current zone is %v", zone) + zone.FailureDomain = m.zone + zone.Region = m.zone + + return zone, nil +} + +// GetZoneByProviderID returns the Zone, found by using the provider ID. +func (m *metadata) GetZoneByProviderID(providerID string) (cloudprovider.Zone, error) { + return cloudprovider.Zone{}, errors.New("GetZoneByProviderID not implemented") +} + +// GetZoneByNodeName returns the Zone, found by using the node name. +func (m *metadata) GetZoneByNodeName(nodeName types.NodeName) (cloudprovider.Zone, error) { + return cloudprovider.Zone{}, errors.New("GetZoneByNodeName not implemented") +} + +func (m *metadata) get(mdType metadataType) (string, error) { + url := fmt.Sprintf("http://%s/latest/meta-data/%s", m.dhcpServer, mdType) + + resp, err := http.Get(url) + if err != nil { + return "", fmt.Errorf("error reading metadata: %v", err) + } + defer resp.Body.Close() + + if resp.StatusCode != http.StatusOK { + return "", fmt.Errorf("unexpected HTTP status: %d", resp.StatusCode) + } + + data, err := ioutil.ReadAll(resp.Body) + if err != nil { + return "", fmt.Errorf("error reading response body: %d", resp.StatusCode) + } + + return string(data), nil +} + +func findDHCPServer() (string, error) { + nics, err := net.Interfaces() + if err != nil { + return "", fmt.Errorf("could not get interfaces: %v", err) + } + + for _, nic := range nics { + if nic.Flags&net.FlagUp == 1 && nic.Flags&net.FlagLoopback == 0 && nic.Flags&net.FlagPointToPoint == 0 { + addrs, err := nic.Addrs() + if err != nil { + return "", fmt.Errorf("error reading IP addresses from interface %v: %v", nic.Name, err) + } + + if addrs != nil { + client, err := newDHCPClient(&nic) + if err != nil { + return "", fmt.Errorf("error creating new DHCP client: %v", err) + } + + discoverPacket, err := client.SendDiscoverPacket() + if err != nil { + return "", fmt.Errorf("error sending DHCP discover package: %v", err) + } + + offerPacket, err := client.GetOffer(&discoverPacket) + if err != nil { + return "", fmt.Errorf("error recieving DHCP offer package: %v", err) + } + + offerPacketOptions := offerPacket.ParseOptions() + + if ipaddr, ok := offerPacketOptions[dhcp4.OptionServerIdentifier]; ok { + return net.IP(ipaddr).String(), nil + } + } + } + } + + return "", errors.New("no server found") +} diff --git a/pkg/cloudprovider/providers/cloudstack/metadata_linux.go b/pkg/cloudprovider/providers/cloudstack/metadata_linux.go new file mode 100644 index 00000000000..02603bf9479 --- /dev/null +++ b/pkg/cloudprovider/providers/cloudstack/metadata_linux.go @@ -0,0 +1,40 @@ +// +build linux + +/* +Copyright 2016 The Kubernetes 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 cloudstack + +import ( + "net" + "time" + + "github.com/d2g/dhcp4client" +) + +func newDHCPClient(nic *net.Interface) (*dhcp4client.Client, error) { + pktsock, err := dhcp4client.NewPacketSock(nic.Index) + if err != nil { + return nil, err + } + + return dhcp4client.New( + dhcp4client.HardwareAddr(nic.HardwareAddr), + dhcp4client.Timeout(2*time.Second), + dhcp4client.Broadcast(false), + dhcp4client.Connection(pktsock), + ) +} diff --git a/pkg/cloudprovider/providers/cloudstack/metadata_other.go b/pkg/cloudprovider/providers/cloudstack/metadata_other.go new file mode 100644 index 00000000000..74a7fe221f3 --- /dev/null +++ b/pkg/cloudprovider/providers/cloudstack/metadata_other.go @@ -0,0 +1,40 @@ +// +build !linux + +/* +Copyright 2016 The Kubernetes 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 cloudstack + +import ( + "net" + "time" + + "github.com/d2g/dhcp4client" +) + +func newDHCPClient(nic *net.Interface) (*dhcp4client.Client, error) { + inetsock, err := dhcp4client.NewInetSock() + if err != nil { + return nil, err + } + + return dhcp4client.New( + dhcp4client.HardwareAddr(nic.HardwareAddr), + dhcp4client.Timeout(2*time.Second), + dhcp4client.Broadcast(false), + dhcp4client.Connection(inetsock), + ) +} diff --git a/vendor/BUILD b/vendor/BUILD index 80286c1ff93..5ebce8891e0 100644 --- a/vendor/BUILD +++ b/vendor/BUILD @@ -119,6 +119,8 @@ filegroup( "//vendor/github.com/coreos/pkg/timeutil:all-srcs", "//vendor/github.com/coreos/rkt/api/v1alpha:all-srcs", "//vendor/github.com/cpuguy83/go-md2man/md2man:all-srcs", + "//vendor/github.com/d2g/dhcp4:all-srcs", + "//vendor/github.com/d2g/dhcp4client:all-srcs", "//vendor/github.com/davecgh/go-spew/spew:all-srcs", "//vendor/github.com/daviddengcn/go-colortext:all-srcs", "//vendor/github.com/dgrijalva/jwt-go:all-srcs", diff --git a/vendor/github.com/d2g/dhcp4/BUILD b/vendor/github.com/d2g/dhcp4/BUILD new file mode 100644 index 00000000000..49634acc5fa --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/BUILD @@ -0,0 +1,26 @@ +load("@io_bazel_rules_go//go:def.bzl", "go_library") + +go_library( + name = "go_default_library", + srcs = [ + "constants.go", + "helpers.go", + "option.go", + "packet.go", + ], + visibility = ["//visibility:public"], +) + +filegroup( + name = "package-srcs", + srcs = glob(["**"]), + tags = ["automanaged"], + visibility = ["//visibility:private"], +) + +filegroup( + name = "all-srcs", + srcs = [":package-srcs"], + tags = ["automanaged"], + visibility = ["//visibility:public"], +) diff --git a/vendor/github.com/d2g/dhcp4/LICENSE b/vendor/github.com/d2g/dhcp4/LICENSE new file mode 100644 index 00000000000..f7d058a3586 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2013 Skagerrak Software Limited. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Skagerrak Software Limited nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. \ No newline at end of file diff --git a/vendor/github.com/d2g/dhcp4/README.md b/vendor/github.com/d2g/dhcp4/README.md new file mode 100644 index 00000000000..6752dc71a20 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/README.md @@ -0,0 +1,5 @@ +# DHCP4 - A DHCP library written in Go. + +Warning: This library is still being developed. Function calls will change. + +I've removed Server Functionality, for me this project supports the underlying DHCP format not the implementation. diff --git a/vendor/github.com/d2g/dhcp4/constants.go b/vendor/github.com/d2g/dhcp4/constants.go new file mode 100644 index 00000000000..183a7783713 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/constants.go @@ -0,0 +1,121 @@ +package dhcp4 + +// OpCodes +const ( + BootRequest OpCode = 1 // From Client + BootReply OpCode = 2 // From Server +) + +// DHCP Message Type 53 +const ( + Discover MessageType = 1 // Broadcast Packet From Client - Can I have an IP? + Offer MessageType = 2 // Broadcast From Server - Here's an IP + Request MessageType = 3 // Broadcast From Client - I'll take that IP (Also start for renewals) + Decline MessageType = 4 // Broadcast From Client - Sorry I can't use that IP + ACK MessageType = 5 // From Server, Yes you can have that IP + NAK MessageType = 6 // From Server, No you cannot have that IP + Release MessageType = 7 // From Client, I don't need that IP anymore + Inform MessageType = 8 // From Client, I have this IP and there's nothing you can do about it +) + +// DHCP Options +const ( + End OptionCode = 255 + Pad OptionCode = 0 + OptionSubnetMask OptionCode = 1 + OptionTimeOffset OptionCode = 2 + OptionRouter OptionCode = 3 + OptionTimeServer OptionCode = 4 + OptionNameServer OptionCode = 5 + OptionDomainNameServer OptionCode = 6 + OptionLogServer OptionCode = 7 + OptionCookieServer OptionCode = 8 + OptionLPRServer OptionCode = 9 + OptionImpressServer OptionCode = 10 + OptionResourceLocationServer OptionCode = 11 + OptionHostName OptionCode = 12 + OptionBootFileSize OptionCode = 13 + OptionMeritDumpFile OptionCode = 14 + OptionDomainName OptionCode = 15 + OptionSwapServer OptionCode = 16 + OptionRootPath OptionCode = 17 + OptionExtensionsPath OptionCode = 18 + + // IP Layer Parameters per Host + OptionIPForwardingEnableDisable OptionCode = 19 + OptionNonLocalSourceRoutingEnableDisable OptionCode = 20 + OptionPolicyFilter OptionCode = 21 + OptionMaximumDatagramReassemblySize OptionCode = 22 + OptionDefaultIPTimeToLive OptionCode = 23 + OptionPathMTUAgingTimeout OptionCode = 24 + OptionPathMTUPlateauTable OptionCode = 25 + + // IP Layer Parameters per Interface + OptionInterfaceMTU OptionCode = 26 + OptionAllSubnetsAreLocal OptionCode = 27 + OptionBroadcastAddress OptionCode = 28 + OptionPerformMaskDiscovery OptionCode = 29 + OptionMaskSupplier OptionCode = 30 + OptionPerformRouterDiscovery OptionCode = 31 + OptionRouterSolicitationAddress OptionCode = 32 + OptionStaticRoute OptionCode = 33 + + // Link Layer Parameters per Interface + OptionTrailerEncapsulation OptionCode = 34 + OptionARPCacheTimeout OptionCode = 35 + OptionEthernetEncapsulation OptionCode = 36 + + // TCP Parameters + OptionTCPDefaultTTL OptionCode = 37 + OptionTCPKeepaliveInterval OptionCode = 38 + OptionTCPKeepaliveGarbage OptionCode = 39 + + // Application and Service Parameters + OptionNetworkInformationServiceDomain OptionCode = 40 + OptionNetworkInformationServers OptionCode = 41 + OptionNetworkTimeProtocolServers OptionCode = 42 + OptionVendorSpecificInformation OptionCode = 43 + OptionNetBIOSOverTCPIPNameServer OptionCode = 44 + OptionNetBIOSOverTCPIPDatagramDistributionServer OptionCode = 45 + OptionNetBIOSOverTCPIPNodeType OptionCode = 46 + OptionNetBIOSOverTCPIPScope OptionCode = 47 + OptionXWindowSystemFontServer OptionCode = 48 + OptionXWindowSystemDisplayManager OptionCode = 49 + OptionNetworkInformationServicePlusDomain OptionCode = 64 + OptionNetworkInformationServicePlusServers OptionCode = 65 + OptionMobileIPHomeAgent OptionCode = 68 + OptionSimpleMailTransportProtocol OptionCode = 69 + OptionPostOfficeProtocolServer OptionCode = 70 + OptionNetworkNewsTransportProtocol OptionCode = 71 + OptionDefaultWorldWideWebServer OptionCode = 72 + OptionDefaultFingerServer OptionCode = 73 + OptionDefaultInternetRelayChatServer OptionCode = 74 + OptionStreetTalkServer OptionCode = 75 + OptionStreetTalkDirectoryAssistance OptionCode = 76 + + // DHCP Extensions + OptionRequestedIPAddress OptionCode = 50 + OptionIPAddressLeaseTime OptionCode = 51 + OptionOverload OptionCode = 52 + OptionDHCPMessageType OptionCode = 53 + OptionServerIdentifier OptionCode = 54 + OptionParameterRequestList OptionCode = 55 + OptionMessage OptionCode = 56 + OptionMaximumDHCPMessageSize OptionCode = 57 + OptionRenewalTimeValue OptionCode = 58 + OptionRebindingTimeValue OptionCode = 59 + OptionVendorClassIdentifier OptionCode = 60 + OptionClientIdentifier OptionCode = 61 + + OptionTFTPServerName OptionCode = 66 + OptionBootFileName OptionCode = 67 + + OptionUserClass OptionCode = 77 + + OptionClientArchitecture OptionCode = 93 + + OptionTZPOSIXString OptionCode = 100 + OptionTZDatabaseString OptionCode = 101 + + OptionClasslessRouteFormat OptionCode = 121 +) diff --git a/vendor/github.com/d2g/dhcp4/helpers.go b/vendor/github.com/d2g/dhcp4/helpers.go new file mode 100644 index 00000000000..4b1463869f5 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/helpers.go @@ -0,0 +1,58 @@ +package dhcp4 + +import ( + "encoding/binary" + "net" + "time" +) + +// IPRange returns how many ips in the ip range from start to stop (inclusive) +func IPRange(start, stop net.IP) int { + //return int(Uint([]byte(stop))-Uint([]byte(start))) + 1 + return int(binary.BigEndian.Uint32(stop.To4())) - int(binary.BigEndian.Uint32(start.To4())) + 1 +} + +// IPAdd returns a copy of start + add. +// IPAdd(net.IP{192,168,1,1},30) returns net.IP{192.168.1.31} +func IPAdd(start net.IP, add int) net.IP { // IPv4 only + start = start.To4() + //v := Uvarint([]byte(start)) + result := make(net.IP, 4) + binary.BigEndian.PutUint32(result, binary.BigEndian.Uint32(start)+uint32(add)) + //PutUint([]byte(result), v+uint64(add)) + return result +} + +// IPLess returns where IP a is less than IP b. +func IPLess(a, b net.IP) bool { + b = b.To4() + for i, ai := range a.To4() { + if ai != b[i] { + return ai < b[i] + } + } + return false +} + +// IPInRange returns true if ip is between (inclusive) start and stop. +func IPInRange(start, stop, ip net.IP) bool { + return !(IPLess(ip, start) || IPLess(stop, ip)) +} + +// OptionsLeaseTime - converts a time.Duration to a 4 byte slice, compatible +// with OptionIPAddressLeaseTime. +func OptionsLeaseTime(d time.Duration) []byte { + leaseBytes := make([]byte, 4) + binary.BigEndian.PutUint32(leaseBytes, uint32(d/time.Second)) + //PutUvarint(leaseBytes, uint64(d/time.Second)) + return leaseBytes +} + +// JoinIPs returns a byte slice of IP addresses, one immediately after the other +// This may be useful for creating multiple IP options such as OptionRouter. +func JoinIPs(ips []net.IP) (b []byte) { + for _, v := range ips { + b = append(b, v.To4()...) + } + return +} diff --git a/vendor/github.com/d2g/dhcp4/option.go b/vendor/github.com/d2g/dhcp4/option.go new file mode 100644 index 00000000000..fbf86e65cc9 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/option.go @@ -0,0 +1,40 @@ +package dhcp4 + +type OptionCode byte + +type Option struct { + Code OptionCode + Value []byte +} + +// Map of DHCP options +type Options map[OptionCode][]byte + +// SelectOrderOrAll has same functionality as SelectOrder, except if the order +// param is nil, whereby all options are added (in arbitrary order). +func (o Options) SelectOrderOrAll(order []byte) []Option { + if order == nil { + opts := make([]Option, 0, len(o)) + for i, v := range o { + opts = append(opts, Option{Code: i, Value: v}) + } + return opts + } + return o.SelectOrder(order) +} + +// SelectOrder returns a slice of options ordered and selected by a byte array +// usually defined by OptionParameterRequestList. This result is expected to be +// used in ReplyPacket()'s []Option parameter. +func (o Options) SelectOrder(order []byte) []Option { + opts := make([]Option, 0, len(order)) + for _, v := range order { + if data, ok := o[OptionCode(v)]; ok { + opts = append(opts, Option{Code: OptionCode(v), Value: data}) + } + } + return opts +} + +type OpCode byte +type MessageType byte // Option 53 diff --git a/vendor/github.com/d2g/dhcp4/packet.go b/vendor/github.com/d2g/dhcp4/packet.go new file mode 100644 index 00000000000..25d69fb9987 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4/packet.go @@ -0,0 +1,150 @@ +package dhcp4 + +import ( + "net" + "time" +) + +// A DHCP packet +type Packet []byte + +func (p Packet) OpCode() OpCode { return OpCode(p[0]) } +func (p Packet) HType() byte { return p[1] } +func (p Packet) HLen() byte { return p[2] } +func (p Packet) Hops() byte { return p[3] } +func (p Packet) XId() []byte { return p[4:8] } +func (p Packet) Secs() []byte { return p[8:10] } // Never Used? +func (p Packet) Flags() []byte { return p[10:12] } +func (p Packet) CIAddr() net.IP { return net.IP(p[12:16]) } +func (p Packet) YIAddr() net.IP { return net.IP(p[16:20]) } +func (p Packet) SIAddr() net.IP { return net.IP(p[20:24]) } +func (p Packet) GIAddr() net.IP { return net.IP(p[24:28]) } +func (p Packet) CHAddr() net.HardwareAddr { + hLen := p.HLen() + if hLen > 16 { // Prevent chaddr exceeding p boundary + hLen = 16 + } + return net.HardwareAddr(p[28 : 28+hLen]) // max endPos 44 +} + +// 192 bytes of zeros BOOTP legacy +func (p Packet) Cookie() []byte { return p[236:240] } +func (p Packet) Options() []byte { + if len(p) > 240 { + return p[240:] + } + return nil +} + +func (p Packet) Broadcast() bool { return p.Flags()[0] > 127 } + +func (p Packet) SetBroadcast(broadcast bool) { + if p.Broadcast() != broadcast { + p.Flags()[0] ^= 128 + } +} + +func (p Packet) SetOpCode(c OpCode) { p[0] = byte(c) } +func (p Packet) SetCHAddr(a net.HardwareAddr) { + copy(p[28:44], a) + p[2] = byte(len(a)) +} +func (p Packet) SetHType(hType byte) { p[1] = hType } +func (p Packet) SetCookie(cookie []byte) { copy(p.Cookie(), cookie) } +func (p Packet) SetHops(hops byte) { p[3] = hops } +func (p Packet) SetXId(xId []byte) { copy(p.XId(), xId) } +func (p Packet) SetSecs(secs []byte) { copy(p.Secs(), secs) } +func (p Packet) SetFlags(flags []byte) { copy(p.Flags(), flags) } +func (p Packet) SetCIAddr(ip net.IP) { copy(p.CIAddr(), ip.To4()) } +func (p Packet) SetYIAddr(ip net.IP) { copy(p.YIAddr(), ip.To4()) } +func (p Packet) SetSIAddr(ip net.IP) { copy(p.SIAddr(), ip.To4()) } +func (p Packet) SetGIAddr(ip net.IP) { copy(p.GIAddr(), ip.To4()) } + +// Parses the packet's options into an Options map +func (p Packet) ParseOptions() Options { + opts := p.Options() + options := make(Options, 10) + for len(opts) >= 2 && OptionCode(opts[0]) != End { + if OptionCode(opts[0]) == Pad { + opts = opts[1:] + continue + } + size := int(opts[1]) + if len(opts) < 2+size { + break + } + options[OptionCode(opts[0])] = opts[2 : 2+size] + opts = opts[2+size:] + } + return options +} + +func NewPacket(opCode OpCode) Packet { + p := make(Packet, 241) + p.SetOpCode(opCode) + p.SetHType(1) // Ethernet + p.SetCookie([]byte{99, 130, 83, 99}) + p[240] = byte(End) + return p +} + +// Appends a DHCP option to the end of a packet +func (p *Packet) AddOption(o OptionCode, value []byte) { + *p = append((*p)[:len(*p)-1], []byte{byte(o), byte(len(value))}...) // Strip off End, Add OptionCode and Length + *p = append(*p, value...) // Add Option Value + *p = append(*p, byte(End)) // Add on new End +} + +// Removes all options from packet. +func (p *Packet) StripOptions() { + *p = append((*p)[:240], byte(End)) +} + +// Creates a request packet that a Client would send to a server. +func RequestPacket(mt MessageType, chAddr net.HardwareAddr, cIAddr net.IP, xId []byte, broadcast bool, options []Option) Packet { + p := NewPacket(BootRequest) + p.SetCHAddr(chAddr) + p.SetXId(xId) + if cIAddr != nil { + p.SetCIAddr(cIAddr) + } + p.SetBroadcast(broadcast) + p.AddOption(OptionDHCPMessageType, []byte{byte(mt)}) + for _, o := range options { + p.AddOption(o.Code, o.Value) + } + p.PadToMinSize() + return p +} + +// ReplyPacket creates a reply packet that a Server would send to a client. +// It uses the req Packet param to copy across common/necessary fields to +// associate the reply the request. +func ReplyPacket(req Packet, mt MessageType, serverId, yIAddr net.IP, leaseDuration time.Duration, options []Option) Packet { + p := NewPacket(BootReply) + p.SetXId(req.XId()) + p.SetFlags(req.Flags()) + p.SetYIAddr(yIAddr) + p.SetGIAddr(req.GIAddr()) + p.SetCHAddr(req.CHAddr()) + p.AddOption(OptionDHCPMessageType, []byte{byte(mt)}) + p.AddOption(OptionServerIdentifier, []byte(serverId)) + if leaseDuration > 0 { + p.AddOption(OptionIPAddressLeaseTime, OptionsLeaseTime(leaseDuration)) + } + for _, o := range options { + p.AddOption(o.Code, o.Value) + } + p.PadToMinSize() + return p +} + +// PadToMinSize pads a packet so that when sent over UDP, the entire packet, +// is 300 bytes (BOOTP min), to be compatible with really old devices. +var padder [272]byte + +func (p *Packet) PadToMinSize() { + if n := len(*p); n < 272 { + *p = append(*p, padder[:272-n]...) + } +} diff --git a/vendor/github.com/d2g/dhcp4client/BUILD b/vendor/github.com/d2g/dhcp4client/BUILD new file mode 100644 index 00000000000..550274b0f6e --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/BUILD @@ -0,0 +1,38 @@ +load("@io_bazel_rules_go//go:def.bzl", "go_library") + +go_library( + name = "go_default_library", + srcs = [ + "client.go", + "generatexid.go", + "inetsock.go", + ] + select({ + "@io_bazel_rules_go//go/platform:linux_amd64": [ + "pktsock_linux.go", + ], + "//conditions:default": [], + }), + visibility = ["//visibility:public"], + deps = [ + "//vendor/github.com/d2g/dhcp4:go_default_library", + ] + select({ + "@io_bazel_rules_go//go/platform:linux_amd64": [ + "//vendor/golang.org/x/sys/unix:go_default_library", + ], + "//conditions:default": [], + }), +) + +filegroup( + name = "package-srcs", + srcs = glob(["**"]), + tags = ["automanaged"], + visibility = ["//visibility:private"], +) + +filegroup( + name = "all-srcs", + srcs = [":package-srcs"], + tags = ["automanaged"], + visibility = ["//visibility:public"], +) diff --git a/vendor/github.com/d2g/dhcp4client/LICENSE b/vendor/github.com/d2g/dhcp4client/LICENSE new file mode 100644 index 00000000000..c33dcc7c928 --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/LICENSE @@ -0,0 +1,354 @@ +Mozilla Public License, version 2.0 + +1. Definitions + +1.1. “Contributor” + + means each individual or legal entity that creates, contributes to the + creation of, or owns Covered Software. + +1.2. “Contributor Version” + + means the combination of the Contributions of others (if any) used by a + Contributor and that particular Contributor’s Contribution. + +1.3. “Contribution” + + means Covered Software of a particular Contributor. + +1.4. “Covered Software” + + means Source Code Form to which the initial Contributor has attached the + notice in Exhibit A, the Executable Form of such Source Code Form, and + Modifications of such Source Code Form, in each case including portions + thereof. + +1.5. “Incompatible With Secondary Licenses” + means + + a. that the initial Contributor has attached the notice described in + Exhibit B to the Covered Software; or + + b. that the Covered Software was made available under the terms of version + 1.1 or earlier of the License, but not also under the terms of a + Secondary License. + +1.6. “Executable Form” + + means any form of the work other than Source Code Form. + +1.7. “Larger Work” + + means a work that combines Covered Software with other material, in a separate + file or files, that is not Covered Software. + +1.8. “License” + + means this document. + +1.9. “Licensable” + + means having the right to grant, to the maximum extent possible, whether at the + time of the initial grant or subsequently, any and all of the rights conveyed by + this License. + +1.10. “Modifications” + + means any of the following: + + a. any file in Source Code Form that results from an addition to, deletion + from, or modification of the contents of Covered Software; or + + b. any new file in Source Code Form that contains any Covered Software. + +1.11. “Patent Claims” of a Contributor + + means any patent claim(s), including without limitation, method, process, + and apparatus claims, in any patent Licensable by such Contributor that + would be infringed, but for the grant of the License, by the making, + using, selling, offering for sale, having made, import, or transfer of + either its Contributions or its Contributor Version. + +1.12. “Secondary License” + + means either the GNU General Public License, Version 2.0, the GNU Lesser + General Public License, Version 2.1, the GNU Affero General Public + License, Version 3.0, or any later versions of those licenses. + +1.13. “Source Code Form” + + means the form of the work preferred for making modifications. + +1.14. “You” (or “Your”) + + means an individual or a legal entity exercising rights under this + License. For legal entities, “You” includes any entity that controls, is + controlled by, or is under common control with You. For purposes of this + definition, “control” means (a) the power, direct or indirect, to cause + the direction or management of such entity, whether by contract or + otherwise, or (b) ownership of more than fifty percent (50%) of the + outstanding shares or beneficial ownership of such entity. + + +2. License Grants and Conditions + +2.1. Grants + + Each Contributor hereby grants You a world-wide, royalty-free, + non-exclusive license: + + a. under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or as + part of a Larger Work; and + + b. under Patent Claims of such Contributor to make, use, sell, offer for + sale, have made, import, and otherwise transfer either its Contributions + or its Contributor Version. + +2.2. Effective Date + + The licenses granted in Section 2.1 with respect to any Contribution become + effective for each Contribution on the date the Contributor first distributes + such Contribution. + +2.3. Limitations on Grant Scope + + The licenses granted in this Section 2 are the only rights granted under this + License. No additional rights or licenses will be implied from the distribution + or licensing of Covered Software under this License. Notwithstanding Section + 2.1(b) above, no patent license is granted by a Contributor: + + a. for any code that a Contributor has removed from Covered Software; or + + b. for infringements caused by: (i) Your and any other third party’s + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + + c. under Patent Claims infringed by Covered Software in the absence of its + Contributions. + + This License does not grant any rights in the trademarks, service marks, or + logos of any Contributor (except as may be necessary to comply with the + notice requirements in Section 3.4). + +2.4. Subsequent Licenses + + No Contributor makes additional grants as a result of Your choice to + distribute the Covered Software under a subsequent version of this License + (see Section 10.2) or under the terms of a Secondary License (if permitted + under the terms of Section 3.3). + +2.5. Representation + + Each Contributor represents that the Contributor believes its Contributions + are its original creation(s) or it has sufficient rights to grant the + rights to its Contributions conveyed by this License. + +2.6. Fair Use + + This License is not intended to limit any rights You have under applicable + copyright doctrines of fair use, fair dealing, or other equivalents. + +2.7. Conditions + + Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in + Section 2.1. + + +3. Responsibilities + +3.1. Distribution of Source Form + + All distribution of Covered Software in Source Code Form, including any + Modifications that You create or to which You contribute, must be under the + terms of this License. You must inform recipients that the Source Code Form + of the Covered Software is governed by the terms of this License, and how + they can obtain a copy of this License. You may not attempt to alter or + restrict the recipients’ rights in the Source Code Form. + +3.2. Distribution of Executable Form + + If You distribute Covered Software in Executable Form then: + + a. such Covered Software must also be made available in Source Code Form, + as described in Section 3.1, and You must inform recipients of the + Executable Form how they can obtain a copy of such Source Code Form by + reasonable means in a timely manner, at a charge no more than the cost + of distribution to the recipient; and + + b. You may distribute such Executable Form under the terms of this License, + or sublicense it under different terms, provided that the license for + the Executable Form does not attempt to limit or alter the recipients’ + rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + + You may create and distribute a Larger Work under terms of Your choice, + provided that You also comply with the requirements of this License for the + Covered Software. If the Larger Work is a combination of Covered Software + with a work governed by one or more Secondary Licenses, and the Covered + Software is not Incompatible With Secondary Licenses, this License permits + You to additionally distribute such Covered Software under the terms of + such Secondary License(s), so that the recipient of the Larger Work may, at + their option, further distribute the Covered Software under the terms of + either this License or such Secondary License(s). + +3.4. Notices + + You may not remove or alter the substance of any license notices (including + copyright notices, patent notices, disclaimers of warranty, or limitations + of liability) contained within the Source Code Form of the Covered + Software, except that You may alter any license notices to the extent + required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + + You may choose to offer, and to charge a fee for, warranty, support, + indemnity or liability obligations to one or more recipients of Covered + Software. However, You may do so only on Your own behalf, and not on behalf + of any Contributor. You must make it absolutely clear that any such + warranty, support, indemnity, or liability obligation is offered by You + alone, and You hereby agree to indemnify every Contributor for any + liability incurred by such Contributor as a result of warranty, support, + indemnity or liability terms You offer. You may include additional + disclaimers of warranty and limitations of liability specific to any + jurisdiction. + +4. Inability to Comply Due to Statute or Regulation + + If it is impossible for You to comply with any of the terms of this License + with respect to some or all of the Covered Software due to statute, judicial + order, or regulation then You must: (a) comply with the terms of this License + to the maximum extent possible; and (b) describe the limitations and the code + they affect. Such description must be placed in a text file included with all + distributions of the Covered Software under this License. Except to the + extent prohibited by statute or regulation, such description must be + sufficiently detailed for a recipient of ordinary skill to be able to + understand it. + +5. Termination + +5.1. The rights granted under this License will terminate automatically if You + fail to comply with any of its terms. However, if You become compliant, + then the rights granted under this License from a particular Contributor + are reinstated (a) provisionally, unless and until such Contributor + explicitly and finally terminates Your grants, and (b) on an ongoing basis, + if such Contributor fails to notify You of the non-compliance by some + reasonable means prior to 60 days after You have come back into compliance. + Moreover, Your grants from a particular Contributor are reinstated on an + ongoing basis if such Contributor notifies You of the non-compliance by + some reasonable means, this is the first time You have received notice of + non-compliance with this License from such Contributor, and You become + compliant prior to 30 days after Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent + infringement claim (excluding declaratory judgment actions, counter-claims, + and cross-claims) alleging that a Contributor Version directly or + indirectly infringes any patent, then the rights granted to You by any and + all Contributors for the Covered Software under Section 2.1 of this License + shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user + license agreements (excluding distributors and resellers) which have been + validly granted by You or Your distributors under this License prior to + termination shall survive termination. + +6. Disclaimer of Warranty + + Covered Software is provided under this License on an “as is” basis, without + warranty of any kind, either expressed, implied, or statutory, including, + without limitation, warranties that the Covered Software is free of defects, + merchantable, fit for a particular purpose or non-infringing. The entire + risk as to the quality and performance of the Covered Software is with You. + Should any Covered Software prove defective in any respect, You (not any + Contributor) assume the cost of any necessary servicing, repair, or + correction. This disclaimer of warranty constitutes an essential part of this + License. No use of any Covered Software is authorized under this License + except under this disclaimer. + +7. Limitation of Liability + + Under no circumstances and under no legal theory, whether tort (including + negligence), contract, or otherwise, shall any Contributor, or anyone who + distributes Covered Software as permitted above, be liable to You for any + direct, indirect, special, incidental, or consequential damages of any + character including, without limitation, damages for lost profits, loss of + goodwill, work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses, even if such party shall have been + informed of the possibility of such damages. This limitation of liability + shall not apply to liability for death or personal injury resulting from such + party’s negligence to the extent applicable law prohibits such limitation. + Some jurisdictions do not allow the exclusion or limitation of incidental or + consequential damages, so this exclusion and limitation may not apply to You. + +8. Litigation + + Any litigation relating to this License may be brought only in the courts of + a jurisdiction where the defendant maintains its principal place of business + and such litigation shall be governed by laws of that jurisdiction, without + reference to its conflict-of-law provisions. Nothing in this Section shall + prevent a party’s ability to bring cross-claims or counter-claims. + +9. Miscellaneous + + This License represents the complete agreement concerning the subject matter + hereof. If any provision of this License is held to be unenforceable, such + provision shall be reformed only to the extent necessary to make it + enforceable. Any law or regulation which provides that the language of a + contract shall be construed against the drafter shall not be used to construe + this License against a Contributor. + + +10. Versions of the License + +10.1. New Versions + + Mozilla Foundation is the license steward. Except as provided in Section + 10.3, no one other than the license steward has the right to modify or + publish new versions of this License. Each version will be given a + distinguishing version number. + +10.2. Effect of New Versions + + You may distribute the Covered Software under the terms of the version of + the License under which You originally received the Covered Software, or + under the terms of any subsequent version published by the license + steward. + +10.3. Modified Versions + + If you create software not governed by this License, and you want to + create a new license for such software, you may create and use a modified + version of this License if you rename the license and remove any + references to the name of the license steward (except to note that such + modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses + If You choose to distribute Source Code Form that is Incompatible With + Secondary Licenses under the terms of this version of the License, the + notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice + + This Source Code Form is subject to the + terms of the Mozilla Public License, v. + 2.0. If a copy of the MPL was not + distributed with this file, You can + obtain one at + http://mozilla.org/MPL/2.0/. + +If it is not possible or desirable to put the notice in a particular file, then +You may include the notice in a location (such as a LICENSE file in a relevant +directory) where a recipient would be likely to look for such a notice. + +You may add additional accurate notices of copyright ownership. + +Exhibit B - “Incompatible With Secondary Licenses” Notice + + This Source Code Form is “Incompatible + With Secondary Licenses”, as defined by + the Mozilla Public License, v. 2.0. + diff --git a/vendor/github.com/d2g/dhcp4client/README.md b/vendor/github.com/d2g/dhcp4client/README.md new file mode 100644 index 00000000000..785ac2c1dfd --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/README.md @@ -0,0 +1,8 @@ +dhcp4client [![GoDoc](https://godoc.org/github.com/d2g/dhcp4client?status.svg)](http://godoc.org/github.com/d2g/dhcp4client) [![Coverage Status](https://coveralls.io/repos/d2g/dhcp4client/badge.svg?branch=HEAD)](https://coveralls.io/r/d2g/dhcp4client?branch=HEAD) [![Codeship Status for d2g/dhcp4client](https://codeship.com/projects/d75d9860-b364-0132-bc79-7e1d8cf367b9/status?branch=master)](https://codeship.com/projects/70187) +=========== + +DHCP Client + + +###### Thanks to: +@eyakubovich For AF_PACKET support. diff --git a/vendor/github.com/d2g/dhcp4client/client.go b/vendor/github.com/d2g/dhcp4client/client.go new file mode 100644 index 00000000000..ea64c16f51a --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/client.go @@ -0,0 +1,364 @@ +package dhcp4client + +import ( + "bytes" + "net" + "time" + + "github.com/d2g/dhcp4" +) + +const ( + MaxDHCPLen = 576 +) + +type Client struct { + hardwareAddr net.HardwareAddr //The HardwareAddr to send in the request. + ignoreServers []net.IP //List of Servers to Ignore requests from. + timeout time.Duration //Time before we timeout. + broadcast bool //Set the Bcast flag in BOOTP Flags + connection connection //The Connection Method to use + generateXID func([]byte) //Function Used to Generate a XID +} + +//Abstracts the type of underlying socket used +type connection interface { + Close() error + Write(packet []byte) error + ReadFrom() ([]byte, net.IP, error) + SetReadTimeout(t time.Duration) error +} + +func New(options ...func(*Client) error) (*Client, error) { + c := Client{ + timeout: time.Second * 10, + broadcast: true, + generateXID: CryptoGenerateXID, + } + + err := c.SetOption(options...) + if err != nil { + return nil, err + } + + //if connection hasn't been set as an option create the default. + if c.connection == nil { + conn, err := NewInetSock() + if err != nil { + return nil, err + } + c.connection = conn + } + + return &c, nil +} + +func (c *Client) SetOption(options ...func(*Client) error) error { + for _, opt := range options { + if err := opt(c); err != nil { + return err + } + } + return nil +} + +func Timeout(t time.Duration) func(*Client) error { + return func(c *Client) error { + c.timeout = t + return nil + } +} + +func IgnoreServers(s []net.IP) func(*Client) error { + return func(c *Client) error { + c.ignoreServers = s + return nil + } +} + +func HardwareAddr(h net.HardwareAddr) func(*Client) error { + return func(c *Client) error { + c.hardwareAddr = h + return nil + } +} + +func Broadcast(b bool) func(*Client) error { + return func(c *Client) error { + c.broadcast = b + return nil + } +} + +func Connection(conn connection) func(*Client) error { + return func(c *Client) error { + c.connection = conn + return nil + } +} + +func GenerateXID(g func([]byte)) func(*Client) error { + return func(c *Client) error { + c.generateXID = g + return nil + } +} + +//Close Connections +func (c *Client) Close() error { + if c.connection != nil { + return c.connection.Close() + } + return nil +} + +//Send the Discovery Packet to the Broadcast Channel +func (c *Client) SendDiscoverPacket() (dhcp4.Packet, error) { + discoveryPacket := c.DiscoverPacket() + discoveryPacket.PadToMinSize() + + return discoveryPacket, c.SendPacket(discoveryPacket) +} + +//Retreive Offer... +//Wait for the offer for a specific Discovery Packet. +func (c *Client) GetOffer(discoverPacket *dhcp4.Packet) (dhcp4.Packet, error) { + for { + c.connection.SetReadTimeout(c.timeout) + readBuffer, source, err := c.connection.ReadFrom() + if err != nil { + return dhcp4.Packet{}, err + } + + offerPacket := dhcp4.Packet(readBuffer) + offerPacketOptions := offerPacket.ParseOptions() + + // Ignore Servers in my Ignore list + for _, ignoreServer := range c.ignoreServers { + if source.Equal(ignoreServer) { + continue + } + + if offerPacket.SIAddr().Equal(ignoreServer) { + continue + } + } + + if len(offerPacketOptions[dhcp4.OptionDHCPMessageType]) < 1 || dhcp4.MessageType(offerPacketOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.Offer || !bytes.Equal(discoverPacket.XId(), offerPacket.XId()) { + continue + } + + return offerPacket, nil + } + +} + +//Send Request Based On the offer Received. +func (c *Client) SendRequest(offerPacket *dhcp4.Packet) (dhcp4.Packet, error) { + requestPacket := c.RequestPacket(offerPacket) + requestPacket.PadToMinSize() + + return requestPacket, c.SendPacket(requestPacket) +} + +//Retreive Acknowledgement +//Wait for the offer for a specific Request Packet. +func (c *Client) GetAcknowledgement(requestPacket *dhcp4.Packet) (dhcp4.Packet, error) { + for { + c.connection.SetReadTimeout(c.timeout) + readBuffer, source, err := c.connection.ReadFrom() + if err != nil { + return dhcp4.Packet{}, err + } + + acknowledgementPacket := dhcp4.Packet(readBuffer) + acknowledgementPacketOptions := acknowledgementPacket.ParseOptions() + + // Ignore Servers in my Ignore list + for _, ignoreServer := range c.ignoreServers { + if source.Equal(ignoreServer) { + continue + } + + if acknowledgementPacket.SIAddr().Equal(ignoreServer) { + continue + } + } + + if !bytes.Equal(requestPacket.XId(), acknowledgementPacket.XId()) || len(acknowledgementPacketOptions[dhcp4.OptionDHCPMessageType]) < 1 || (dhcp4.MessageType(acknowledgementPacketOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.ACK && dhcp4.MessageType(acknowledgementPacketOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.NAK) { + continue + } + + return acknowledgementPacket, nil + } +} + +//Send Decline to the received acknowledgement. +func (c *Client) SendDecline(acknowledgementPacket *dhcp4.Packet) (dhcp4.Packet, error) { + declinePacket := c.DeclinePacket(acknowledgementPacket) + declinePacket.PadToMinSize() + + return declinePacket, c.SendPacket(declinePacket) +} + +//Send a DHCP Packet. +func (c *Client) SendPacket(packet dhcp4.Packet) error { + return c.connection.Write(packet) +} + +//Create Discover Packet +func (c *Client) DiscoverPacket() dhcp4.Packet { + messageid := make([]byte, 4) + c.generateXID(messageid) + + packet := dhcp4.NewPacket(dhcp4.BootRequest) + packet.SetCHAddr(c.hardwareAddr) + packet.SetXId(messageid) + packet.SetBroadcast(c.broadcast) + + packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Discover)}) + //packet.PadToMinSize() + return packet +} + +//Create Request Packet +func (c *Client) RequestPacket(offerPacket *dhcp4.Packet) dhcp4.Packet { + offerOptions := offerPacket.ParseOptions() + + packet := dhcp4.NewPacket(dhcp4.BootRequest) + packet.SetCHAddr(c.hardwareAddr) + + packet.SetXId(offerPacket.XId()) + packet.SetCIAddr(offerPacket.CIAddr()) + packet.SetSIAddr(offerPacket.SIAddr()) + + packet.SetBroadcast(c.broadcast) + packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Request)}) + packet.AddOption(dhcp4.OptionRequestedIPAddress, (offerPacket.YIAddr()).To4()) + packet.AddOption(dhcp4.OptionServerIdentifier, offerOptions[dhcp4.OptionServerIdentifier]) + + return packet +} + +//Create Request Packet For a Renew +func (c *Client) RenewalRequestPacket(acknowledgement *dhcp4.Packet) dhcp4.Packet { + messageid := make([]byte, 4) + c.generateXID(messageid) + + acknowledgementOptions := acknowledgement.ParseOptions() + + packet := dhcp4.NewPacket(dhcp4.BootRequest) + packet.SetCHAddr(acknowledgement.CHAddr()) + + packet.SetXId(messageid) + packet.SetCIAddr(acknowledgement.YIAddr()) + packet.SetSIAddr(acknowledgement.SIAddr()) + + packet.SetBroadcast(c.broadcast) + packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Request)}) + packet.AddOption(dhcp4.OptionRequestedIPAddress, (acknowledgement.YIAddr()).To4()) + packet.AddOption(dhcp4.OptionServerIdentifier, acknowledgementOptions[dhcp4.OptionServerIdentifier]) + + return packet +} + +//Create Release Packet For a Release +func (c *Client) ReleasePacket(acknowledgement *dhcp4.Packet) dhcp4.Packet { + messageid := make([]byte, 4) + c.generateXID(messageid) + + acknowledgementOptions := acknowledgement.ParseOptions() + + packet := dhcp4.NewPacket(dhcp4.BootRequest) + packet.SetCHAddr(acknowledgement.CHAddr()) + + packet.SetXId(messageid) + packet.SetCIAddr(acknowledgement.YIAddr()) + + packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Release)}) + packet.AddOption(dhcp4.OptionServerIdentifier, acknowledgementOptions[dhcp4.OptionServerIdentifier]) + + return packet +} + +//Create Decline Packet +func (c *Client) DeclinePacket(acknowledgement *dhcp4.Packet) dhcp4.Packet { + messageid := make([]byte, 4) + c.generateXID(messageid) + + acknowledgementOptions := acknowledgement.ParseOptions() + + packet := dhcp4.NewPacket(dhcp4.BootRequest) + packet.SetCHAddr(acknowledgement.CHAddr()) + packet.SetXId(messageid) + + packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Decline)}) + packet.AddOption(dhcp4.OptionRequestedIPAddress, (acknowledgement.YIAddr()).To4()) + packet.AddOption(dhcp4.OptionServerIdentifier, acknowledgementOptions[dhcp4.OptionServerIdentifier]) + + return packet +} + + +//Lets do a Full DHCP Request. +func (c *Client) Request() (bool, dhcp4.Packet, error) { + discoveryPacket, err := c.SendDiscoverPacket() + if err != nil { + return false, discoveryPacket, err + } + + offerPacket, err := c.GetOffer(&discoveryPacket) + if err != nil { + return false, offerPacket, err + } + + requestPacket, err := c.SendRequest(&offerPacket) + if err != nil { + return false, requestPacket, err + } + + acknowledgement, err := c.GetAcknowledgement(&requestPacket) + if err != nil { + return false, acknowledgement, err + } + + acknowledgementOptions := acknowledgement.ParseOptions() + if dhcp4.MessageType(acknowledgementOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.ACK { + return false, acknowledgement, nil + } + + return true, acknowledgement, nil +} + +//Renew a lease backed on the Acknowledgement Packet. +//Returns Sucessfull, The AcknoledgementPacket, Any Errors +func (c *Client) Renew(acknowledgement dhcp4.Packet) (bool, dhcp4.Packet, error) { + renewRequest := c.RenewalRequestPacket(&acknowledgement) + renewRequest.PadToMinSize() + + err := c.SendPacket(renewRequest) + if err != nil { + return false, renewRequest, err + } + + newAcknowledgement, err := c.GetAcknowledgement(&renewRequest) + if err != nil { + return false, newAcknowledgement, err + } + + newAcknowledgementOptions := newAcknowledgement.ParseOptions() + if dhcp4.MessageType(newAcknowledgementOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.ACK { + return false, newAcknowledgement, nil + } + + return true, newAcknowledgement, nil +} + +//Release a lease backed on the Acknowledgement Packet. +//Returns Any Errors +func (c *Client) Release(acknowledgement dhcp4.Packet) error { + release := c.ReleasePacket(&acknowledgement) + release.PadToMinSize() + + return c.SendPacket(release) +} diff --git a/vendor/github.com/d2g/dhcp4client/generatexid.go b/vendor/github.com/d2g/dhcp4client/generatexid.go new file mode 100644 index 00000000000..6e9ffbcde7a --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/generatexid.go @@ -0,0 +1,18 @@ +package dhcp4client + +import ( + cryptorand "crypto/rand" + mathrand "math/rand" +) + +func CryptoGenerateXID(b []byte) { + if _, err := cryptorand.Read(b); err != nil { + panic(err) + } +} + +func MathGenerateXID(b []byte) { + if _, err := mathrand.Read(b); err != nil { + panic(err) + } +} diff --git a/vendor/github.com/d2g/dhcp4client/inetsock.go b/vendor/github.com/d2g/dhcp4client/inetsock.go new file mode 100644 index 00000000000..293f186538c --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/inetsock.go @@ -0,0 +1,75 @@ +package dhcp4client + +import ( + "net" + "time" +) + +type inetSock struct { + *net.UDPConn + + laddr net.UDPAddr + raddr net.UDPAddr +} + +func NewInetSock(options ...func(*inetSock) error) (*inetSock, error) { + c := &inetSock{ + laddr: net.UDPAddr{IP: net.IPv4(0, 0, 0, 0), Port: 68}, + raddr: net.UDPAddr{IP: net.IPv4bcast, Port: 67}, + } + + err := c.setOption(options...) + if err != nil { + return nil, err + } + + conn, err := net.ListenUDP("udp4", &c.laddr) + if err != nil { + return nil, err + } + + c.UDPConn = conn + return c, err +} + +func (c *inetSock) setOption(options ...func(*inetSock) error) error { + for _, opt := range options { + if err := opt(c); err != nil { + return err + } + } + return nil +} + +func SetLocalAddr(l net.UDPAddr) func(*inetSock) error { + return func(c *inetSock) error { + c.laddr = l + return nil + } +} + +func SetRemoteAddr(r net.UDPAddr) func(*inetSock) error { + return func(c *inetSock) error { + c.raddr = r + return nil + } +} + +func (c *inetSock) Write(packet []byte) error { + _, err := c.WriteToUDP(packet, &c.raddr) + return err +} + +func (c *inetSock) ReadFrom() ([]byte, net.IP, error) { + readBuffer := make([]byte, MaxDHCPLen) + n, source, err := c.ReadFromUDP(readBuffer) + if source != nil { + return readBuffer[:n], source.IP, err + } else { + return readBuffer[:n], net.IP{}, err + } +} + +func (c *inetSock) SetReadTimeout(t time.Duration) error { + return c.SetReadDeadline(time.Now().Add(t)) +} diff --git a/vendor/github.com/d2g/dhcp4client/pktsock_linux.go b/vendor/github.com/d2g/dhcp4client/pktsock_linux.go new file mode 100644 index 00000000000..a21c265fb4a --- /dev/null +++ b/vendor/github.com/d2g/dhcp4client/pktsock_linux.go @@ -0,0 +1,147 @@ +package dhcp4client + +import ( + "crypto/rand" + "encoding/binary" + "net" + "time" + + "golang.org/x/sys/unix" +) + +const ( + minIPHdrLen = 20 + maxIPHdrLen = 60 + udpHdrLen = 8 + ip4Ver = 0x40 + ttl = 16 + srcPort = 68 + dstPort = 67 +) + +var ( + bcastMAC = []byte{255, 255, 255, 255, 255, 255} +) + +// abstracts AF_PACKET +type packetSock struct { + fd int + ifindex int +} + +func NewPacketSock(ifindex int) (*packetSock, error) { + fd, err := unix.Socket(unix.AF_PACKET, unix.SOCK_DGRAM, int(swap16(unix.ETH_P_IP))) + if err != nil { + return nil, err + } + + addr := unix.SockaddrLinklayer{ + Ifindex: ifindex, + Protocol: swap16(unix.ETH_P_IP), + } + + if err = unix.Bind(fd, &addr); err != nil { + return nil, err + } + + return &packetSock{ + fd: fd, + ifindex: ifindex, + }, nil +} + +func (pc *packetSock) Close() error { + return unix.Close(pc.fd) +} + +func (pc *packetSock) Write(packet []byte) error { + lladdr := unix.SockaddrLinklayer{ + Ifindex: pc.ifindex, + Protocol: swap16(unix.ETH_P_IP), + Halen: uint8(len(bcastMAC)), + } + copy(lladdr.Addr[:], bcastMAC) + + pkt := make([]byte, minIPHdrLen+udpHdrLen+len(packet)) + + fillIPHdr(pkt[0:minIPHdrLen], udpHdrLen+uint16(len(packet))) + fillUDPHdr(pkt[minIPHdrLen:minIPHdrLen+udpHdrLen], uint16(len(packet))) + + // payload + copy(pkt[minIPHdrLen+udpHdrLen:len(pkt)], packet) + + return unix.Sendto(pc.fd, pkt, 0, &lladdr) +} + +func (pc *packetSock) ReadFrom() ([]byte, net.IP, error) { + pkt := make([]byte, maxIPHdrLen+udpHdrLen+MaxDHCPLen) + n, _, err := unix.Recvfrom(pc.fd, pkt, 0) + if err != nil { + return nil, nil, err + } + + // IP hdr len + ihl := int(pkt[0]&0x0F) * 4 + // Source IP address + src := net.IP(pkt[12:16]) + + return pkt[ihl+udpHdrLen : n], src, nil +} + +func (pc *packetSock) SetReadTimeout(t time.Duration) error { + + tv := unix.NsecToTimeval(t.Nanoseconds()) + return unix.SetsockoptTimeval(pc.fd, unix.SOL_SOCKET, unix.SO_RCVTIMEO, &tv) +} + +// compute's 1's complement checksum +func chksum(p []byte, csum []byte) { + cklen := len(p) + s := uint32(0) + for i := 0; i < (cklen - 1); i += 2 { + s += uint32(p[i+1])<<8 | uint32(p[i]) + } + if cklen&1 == 1 { + s += uint32(p[cklen-1]) + } + s = (s >> 16) + (s & 0xffff) + s = s + (s >> 16) + s = ^s + + csum[0] = uint8(s & 0xff) + csum[1] = uint8(s >> 8) +} + +func fillIPHdr(hdr []byte, payloadLen uint16) { + // version + IHL + hdr[0] = ip4Ver | (minIPHdrLen / 4) + // total length + binary.BigEndian.PutUint16(hdr[2:4], uint16(len(hdr))+payloadLen) + // identification + if _, err := rand.Read(hdr[4:5]); err != nil { + panic(err) + } + // TTL + hdr[8] = 16 + // Protocol + hdr[9] = unix.IPPROTO_UDP + // dst IP + copy(hdr[16:20], net.IPv4bcast.To4()) + // compute IP hdr checksum + chksum(hdr[0:len(hdr)], hdr[10:12]) +} + +func fillUDPHdr(hdr []byte, payloadLen uint16) { + // src port + binary.BigEndian.PutUint16(hdr[0:2], srcPort) + // dest port + binary.BigEndian.PutUint16(hdr[2:4], dstPort) + // length + binary.BigEndian.PutUint16(hdr[4:6], udpHdrLen+payloadLen) +} + +func swap16(x uint16) uint16 { + var b [2]byte + binary.BigEndian.PutUint16(b[:], x) + return binary.LittleEndian.Uint16(b[:]) +}