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handle sctp and add option all to handle all network ops
Signed-off-by: rksharma95 <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // Copyright 2022 Authors of KubeArmor | ||
|
|
||
| package bpflsm | ||
|
|
||
| import ( | ||
| "strings" | ||
|
|
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| tp "github.com/kubearmor/KubeArmor/KubeArmor/types" | ||
| ) | ||
|
|
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| func handleAllNetworkRule(protocols *[]tp.NetworkProtocolType) { | ||
| allProtocols := []tp.NetworkProtocolType{} | ||
|
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| allWithNoFromSourceAllow := false | ||
| allWithNoFromSourceBlock := false | ||
|
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| sourcesBlock := map[string]string{} | ||
| sourcesAllow := map[string]string{} | ||
|
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| for _, net := range *protocols { | ||
| if strings.ToUpper(net.Protocol) == "ALL" { | ||
| if len(net.FromSource) == 0 { | ||
| if net.Action == "Allow" && !allWithNoFromSourceAllow { | ||
| for r := range netType { | ||
| allProtocols = append(allProtocols, tp.NetworkProtocolType{ | ||
| Protocol: r, | ||
| Action: net.Action, | ||
| }) | ||
| } | ||
| allWithNoFromSourceAllow = true | ||
| } else if net.Action == "Block" && !allWithNoFromSourceBlock { | ||
| for r := range netType { | ||
| allProtocols = append(allProtocols, tp.NetworkProtocolType{ | ||
| Protocol: r, | ||
| Action: net.Action, | ||
| }) | ||
| } | ||
| allWithNoFromSourceBlock = true | ||
| } | ||
| } else { | ||
| for _, src := range net.FromSource { | ||
| if _, ok := sourcesAllow[src.Path]; !ok && net.Action == "Allow" { | ||
| sourcesAllow[src.Path] = net.Action | ||
| } | ||
| if _, ok := sourcesBlock[src.Path]; !ok && net.Action == "Block" { | ||
| sourcesBlock[src.Path] = net.Action | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| // add all with fromsource rules | ||
|
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| if len(sourcesAllow) > 0 { | ||
| sources := []tp.MatchSourceType{} | ||
| for src := range sourcesAllow { | ||
| sources = append(sources, tp.MatchSourceType{ | ||
| Path: src, | ||
| }) | ||
| } | ||
| for r := range netType { | ||
| allProtocols = append(allProtocols, tp.NetworkProtocolType{ | ||
| Protocol: r, | ||
| Action: "Allow", | ||
| FromSource: sources, | ||
| }) | ||
| } | ||
| } | ||
|
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| if len(sourcesBlock) > 0 { | ||
| sources := []tp.MatchSourceType{} | ||
| for src := range sourcesBlock { | ||
| sources = append(sources, tp.MatchSourceType{ | ||
| Path: src, | ||
| }) | ||
| } | ||
| for r := range netType { | ||
| allProtocols = append(allProtocols, tp.NetworkProtocolType{ | ||
| Protocol: r, | ||
| Action: "Block", | ||
| FromSource: sources, | ||
| }) | ||
| } | ||
| } | ||
|
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| *protocols = append(*protocols, allProtocols...) | ||
|
|
||
| } |
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