Files
cloudpods/pkg/multicloud/huawei/securitygroup.go
T

329 lines
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Go

// Copyright 2019 Yunion
//
// 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 huawei
/*
https://support.huaweicloud.com/usermanual-vpc/zh-cn_topic_0073379079.html
安全组的限制
默认情况下,一个用户可以创建100个安全组。
默认情况下,一个安全组最多只允许拥有50条安全组规则。
默认情况下,一个弹性云服务器或辅助网卡最多只能被添加到5个安全组中。
在创建私网弹性负载均衡时,需要选择弹性负载均衡所在的安全组。请勿删除默认规则或者确保满足以下规则:
出方向:允许发往同一个安全组的报文可以通过,或者允许对端负载均衡器报文通过。
入方向:允许来自同一个安全组的报文可以通过,或者允许对端负载均衡器报文通过。
*/
import (
"net"
"sort"
"yunion.io/x/jsonutils"
"yunion.io/x/pkg/util/secrules"
api "yunion.io/x/onecloud/pkg/apis/compute"
)
type SecurityGroupRule struct {
Direction string `json:"direction"`
Ethertype string `json:"ethertype"`
ID string `json:"id"`
Description string `json:"description"`
SecurityGroupID string `json:"security_group_id"`
RemoteGroupID string `json:"remote_group_id"`
}
type SecurityGroupRuleDetail struct {
Direction string `json:"direction"`
Ethertype string `json:"ethertype"`
ID string `json:"id"`
Description string `json:"description"`
PortRangeMax int64 `json:"port_range_max"`
PortRangeMin int64 `json:"port_range_min"`
Protocol string `json:"protocol"`
RemoteGroupID string `json:"remote_group_id"`
RemoteIPPrefix string `json:"remote_ip_prefix"`
SecurityGroupID string `json:"security_group_id"`
TenantID string `json:"tenant_id"`
}
// https://support.huaweicloud.com/api-vpc/zh-cn_topic_0020090615.html
type SSecurityGroup struct {
region *SRegion
ID string `json:"id"`
Name string `json:"name"`
Description string `json:"description"`
VpcID string `json:"vpc_id"`
EnterpriseProjectID string `json:"enterprise_project_id "`
SecurityGroupRules []SecurityGroupRule `json:"security_group_rules"`
}
// 判断是否兼容云端安全组规则
func compatibleSecurityGroupRule(r SecurityGroupRule) bool {
// 忽略了源地址是安全组的规则
if len(r.RemoteGroupID) > 0 {
return false
}
// 忽略IPV6
if r.Ethertype == "IPv6" {
return false
}
return true
}
// 将安全组规则全部转换为等价的allow规则
func SecurityRuleSetToAllowSet(srs secrules.SecurityRuleSet) secrules.SecurityRuleSet {
inRuleSet := secrules.SecurityRuleSet{}
outRuleSet := secrules.SecurityRuleSet{}
for _, rule := range srs {
if rule.Direction == secrules.SecurityRuleIngress {
inRuleSet = append(inRuleSet, rule)
}
if rule.Direction == secrules.SecurityRuleEgress {
outRuleSet = append(outRuleSet, rule)
}
}
sort.Sort(inRuleSet)
sort.Sort(outRuleSet)
inRuleSet = inRuleSet.AllowList()
// out方向空规则默认全部放行
if outRuleSet.Len() == 0 {
_, ipNet, _ := net.ParseCIDR("0.0.0.0/0")
outRuleSet = append(outRuleSet, secrules.SecurityRule{
Priority: 0,
Action: secrules.SecurityRuleAllow,
IPNet: ipNet,
Protocol: secrules.PROTO_ANY,
Direction: secrules.SecurityRuleEgress,
PortStart: -1,
PortEnd: -1,
})
}
outRuleSet = outRuleSet.AllowList()
ret := secrules.SecurityRuleSet{}
ret = append(ret, inRuleSet...)
ret = append(ret, outRuleSet...)
return ret
}
func (self *SSecurityGroup) GetId() string {
return self.ID
}
func (self *SSecurityGroup) GetVpcId() string {
return api.NORMAL_VPC_ID
}
func (self *SSecurityGroup) GetName() string {
if len(self.Name) > 0 {
return self.Name
}
return self.ID
}
func (self *SSecurityGroup) GetGlobalId() string {
return self.ID
}
func (self *SSecurityGroup) GetStatus() string {
return ""
}
func (self *SSecurityGroup) Refresh() error {
if new, err := self.region.GetSecurityGroupDetails(self.GetId()); err != nil {
return err
} else {
return jsonutils.Update(self, new)
}
}
func (self *SSecurityGroup) IsEmulated() bool {
return false
}
func (self *SSecurityGroup) GetMetadata() *jsonutils.JSONDict {
data := jsonutils.NewDict()
return data
}
func (self *SSecurityGroup) GetDescription() string {
if self.Description == self.VpcID {
return ""
}
return self.Description
}
// todo: 这里需要优化查询太多了
func (self *SSecurityGroup) GetRules() ([]secrules.SecurityRule, error) {
rules := make([]secrules.SecurityRule, 0)
for _, r := range self.SecurityGroupRules {
if !compatibleSecurityGroupRule(r) {
continue
}
rule, err := self.GetSecurityRule(r.ID, false)
if err != nil {
return rules, err
}
rules = append(rules, rule)
}
return rules, nil
}
func (self *SSecurityGroup) GetRulesWithExtId() ([]secrules.SecurityRule, error) {
rules := make([]secrules.SecurityRule, 0)
for _, r := range self.SecurityGroupRules {
if !compatibleSecurityGroupRule(r) {
continue
}
rule, err := self.GetSecurityRule(r.ID, true)
if err != nil {
return rules, err
}
rules = append(rules, rule)
}
return rules, nil
}
// withRuleId.
func (self *SSecurityGroup) GetSecurityRule(ruleId string, withRuleId bool) (secrules.SecurityRule, error) {
remoteRule := SecurityGroupRuleDetail{}
err := DoGet(self.region.ecsClient.SecurityGroupRules.Get, ruleId, nil, &remoteRule)
if err != nil {
return secrules.SecurityRule{}, err
}
var direction secrules.TSecurityRuleDirection
if remoteRule.Direction == "ingress" {
direction = secrules.SecurityRuleIngress
} else {
direction = secrules.SecurityRuleEgress
}
protocol := secrules.PROTO_ANY
if remoteRule.Protocol != "" {
protocol = remoteRule.Protocol
}
var portStart int
var portEnd int
if protocol == secrules.PROTO_ICMP {
portStart = -1
portEnd = -1
} else {
portStart = int(remoteRule.PortRangeMin)
portEnd = int(remoteRule.PortRangeMax)
}
ipNet := &net.IPNet{}
if len(remoteRule.RemoteIPPrefix) > 0 {
_, ipNet, err = net.ParseCIDR(remoteRule.RemoteIPPrefix)
} else {
_, ipNet, err = net.ParseCIDR("0.0.0.0/0")
}
if err != nil {
return secrules.SecurityRule{}, err
}
// withRuleId.将ruleId附加到description字段。该hook有特殊目的,仅在同步安全组时使用。
desc := ""
if withRuleId {
desc = ruleId
} else {
desc = remoteRule.Description
}
rule := secrules.SecurityRule{
Priority: 1,
Action: secrules.SecurityRuleAllow,
IPNet: ipNet,
Protocol: protocol,
Direction: direction,
PortStart: portStart,
PortEnd: portEnd,
Ports: nil,
Description: desc,
}
err = rule.ValidateRule()
return rule, err
}
func (self *SRegion) GetSecurityGroupDetails(secGroupId string) (*SSecurityGroup, error) {
securitygroup := SSecurityGroup{}
err := DoGet(self.ecsClient.SecurityGroups.Get, secGroupId, nil, &securitygroup)
if err != nil {
return nil, err
}
securitygroup.region = self
return &securitygroup, err
}
// https://support.huaweicloud.com/api-vpc/zh-cn_topic_0020090617.html
func (self *SRegion) GetSecurityGroups(vpcId string, name string) ([]SSecurityGroup, error) {
querys := map[string]string{}
if len(vpcId) > 0 {
querys["vpc_id"] = vpcId
}
securitygroups := make([]SSecurityGroup, 0)
err := doListAllWithMarker(self.ecsClient.SecurityGroups.List, querys, &securitygroups)
if err != nil {
return nil, err
}
// security 中的vpc字段只是一个标识,实际可以跨vpc使用
for i := range securitygroups {
securitygroup := &securitygroups[i]
securitygroup.region = self
}
result := []SSecurityGroup{}
for _, secgroup := range securitygroups {
if len(name) == 0 || secgroup.Name == name {
result = append(result, secgroup)
}
}
return result, nil
}
func (self *SSecurityGroup) GetProjectId() string {
return ""
}
func (self *SSecurityGroup) Delete() error {
return self.region.DeleteSecurityGroup(self.ID)
}
func (self *SSecurityGroup) SyncRules(rules []secrules.SecurityRule) error {
rules = SecurityRuleSetToAllowSet(rules)
return self.region.syncSecgroupRules(self.ID, rules)
}