Merge 9a7e55b3e0 into c2a7aa5481

src/Cedar/Proto_IKE.c: ignore packets with no IPSec SA

.github/workflows/build_source_release.yml

@@ -8,15 +8,16 @@ on:
 
 jobs:
   build:
-    name: build
+    name: Build
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v1
+    - name: Checkout
+      uses: actions/checkout@v4
       with:
         submodules: true
 
-    - name: archive
+    - name: Archive
       id: archive
       run: |
         VERSION=${{ github.event.release.tag_name }}
@@ -28,12 +29,8 @@ jobs:
         tar cJf $TARBALL $PKGNAME
         echo "tarball=$TARBALL" >> $GITHUB_OUTPUT
 
-    - name: upload tarball
+    - name: Upload tarball
-      uses: actions/upload-release-asset@v1
+      uses: softprops/action-gh-release@v2
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        upload_url: ${{ github.event.release.upload_url }}
+        files: ./${{ steps.archive.outputs.tarball }}
-        asset_path: ./${{ steps.archive.outputs.tarball }}
+        name: ${{ steps.archive.outputs.tarball }}
-        asset_name: ${{ steps.archive.outputs.tarball }}
-        asset_content_type: application/gzip

.github/workflows/coverity.yml

@@ -1,4 +1,3 @@
-
 name: Coverity
 
 on:
@@ -10,28 +9,36 @@ permissions:
 
 jobs:
   scan:
+    name: Scan
     runs-on: ubuntu-latest
-    if: ${{ github.repository_owner == 'SoftEtherVPN' }}
+    if: github.repository_owner == 'SoftEtherVPN'
     steps:
-    - uses: actions/checkout@v2
+
+    - name: Checkout
+      uses: actions/checkout@v4
       with:
         submodules: true
+
     - name: Install apt dependencies
       run: |
         sudo apt-get update
         sudo apt-get install -y cmake gcc g++ libncurses5-dev libreadline-dev libssl-dev make zlib1g-dev libsodium-dev
+
     - name: Download Coverity build tool
       run: |
         wget -c -N https://scan.coverity.com/download/linux64 --post-data "token=${{ secrets.COVERITY_SCAN_TOKEN }}&project=SoftEtherVPN%2FSoftEtherVPN" -O coverity_tool.tar.gz
         mkdir coverity_tool
         tar xzf coverity_tool.tar.gz --strip 1 -C coverity_tool
+
     - name: Configure
       run: |
         ./configure
+
     - name: Build with Coverity build tool
       run: |
         export PATH=`pwd`/coverity_tool/bin:$PATH
         cov-build --dir cov-int make -C build
+
     - name: Submit build result to Coverity Scan
       run: |
         tar czvf cov.tar.gz cov-int

.github/workflows/fedora-rawhide.yml

@@ -19,15 +19,18 @@ jobs:
     container:
       image: fedora:rawhide
     steps:
-    - uses: actions/checkout@v1
+
-      with:
-        submodules: true
     - name: Install dependencies
       run: |
         dnf -y install git cmake ncurses-devel openssl-devel libsodium-devel readline-devel zlib-devel gcc-c++ clang
+
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: true
+
     - name: Compile with ${{ matrix.cc }}
       run: |
         export CC=${{ matrix.cc }}
         ./configure
         make -C build
-

.github/workflows/linux.yml

@@ -1,3 +1,4 @@
+name: Linux
 on: [push, pull_request]
 
 permissions:
@@ -5,14 +6,16 @@ permissions:
 
 jobs:
   build_and_test:
+    name: Build
     runs-on: ubuntu-latest
     steps:
+
     - uses: actions/checkout@v4
       with:
         submodules: true
 
     - name: Install dependencies
-      run: sudo apt update && sudo apt-get -y install cmake gcc g++ ninja-build libncurses5-dev libreadline-dev libsodium-dev libssl-dev make zlib1g-dev liblz4-dev libnl-genl-3-dev 
+      run: sudo apt-get update && sudo apt-get -y install cmake gcc g++ ninja-build libncurses5-dev libreadline-dev libsodium-dev libssl-dev make zlib1g-dev liblz4-dev libnl-genl-3-dev 
 
     - name: Build
       run: |

.github/workflows/macos.yml

@@ -1,3 +1,4 @@
+name: macOS
 on: [push, pull_request, workflow_dispatch]
 
 permissions:
@@ -11,18 +12,21 @@ jobs:
     name: ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v1
+
+    - uses: actions/checkout@v4
       with:
         submodules: true
+
     - name: Install dependencies
       run: |
         brew install libsodium
+
     - name: Compile 
       run: |
         ./configure
         make -C build
+
     - name: Test 
       run: |
         otool -L build/vpnserver
         .ci/memory-leak-test.sh
-

.github/workflows/musl.yml

@@ -1,4 +1,4 @@
-name: alpine/musl
+name: Alpine/musl
 
 on: [push, pull_request]
 
@@ -7,17 +7,22 @@ permissions:
 
 jobs:
   musl:
-      name: gcc
+    name: gcc
-      runs-on: ubuntu-latest
+    runs-on: ubuntu-latest
-      container:
+    container:
-        image: alpine:latest
+      image: alpine:latest
-      steps:
+    steps:
-      - uses: actions/checkout@v1
+
-        with:
-          submodules: true
       - name: Install dependencies
         run: apk add binutils --no-cache build-base readline-dev openssl-dev ncurses-dev git cmake zlib-dev libsodium-dev gnu-libiconv 
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
       - name: Configure
         run: ./configure
+
       - name: make 
         run: make -C build

.github/workflows/stb_check.yml

@@ -1,3 +1,4 @@
+name: STB Check
 on: [push, pull_request]
 
 permissions:
@@ -5,11 +6,15 @@ permissions:
 
 jobs:
   check:
+      name: Check
       runs-on: ubuntu-latest
       steps:
-      - uses: actions/checkout@v1
+
+      - name: Checkout
+        uses: actions/checkout@v4
         with:
           submodules: true
+
       - name: Check
         run: |
           cd developer_tools/stbchecker

.github/workflows/windows.yml

@@ -1,3 +1,4 @@
+name: Windows
 on: [push, pull_request]
 
 permissions:
@@ -14,19 +15,24 @@ jobs:
     runs-on: windows-latest
     name: ${{ matrix.platform.ARCHITECTURE }}
     steps:
-    - uses: actions/checkout@v4
+
+    - name: Checkout
+      uses: actions/checkout@v4
       with:
         submodules: true
+
     - name: Cache vcpkg
       uses: actions/cache@v4
       with:
         path: 'build/vcpkg_installed/'
         key: vcpkg-${{ matrix.platform.VCPKG_TRIPLET }}
+
     - name: Set version variables
       run: |
         $v = python version.py
         echo "VERSION=$v" | Out-File -FilePath $Env:GITHUB_ENV -Encoding utf8 -Append
       shell: pwsh
+
     - name: Build
       env:
         ARCHITECTURE: ${{ matrix.platform.ARCHITECTURE }}
@@ -44,11 +50,14 @@ jobs:
         vpnsetup /SFXMODE:vpnclient /SFXOUT:"installers\softether-vpnclient-%VERSION%.%BUILD_NUMBER%.%ARCHITECTURE%.exe"
         vpnsetup /SFXMODE:vpnserver_vpnbridge /SFXOUT:"installers\softether-vpnserver_vpnbridge-%VERSION%.%BUILD_NUMBER%.%ARCHITECTURE%.exe"
       shell: cmd
+
     - name: Test
       shell: powershell
       run: |
         . .ci/appveyor-vpntest.ps1
-    - uses: actions/upload-artifact@v4
+
+    - name: Upload built binaries
+      uses: actions/upload-artifact@v4
       with:
         if-no-files-found: error
         name: Binaries-${{ matrix.platform.ARCHITECTURE }}
@@ -56,7 +65,9 @@ jobs:
           build/*.exe
           build/*.pdb
           build/*.se2
-    - uses: actions/upload-artifact@v4
+
+    - name: Upload installers
+      uses: actions/upload-artifact@v4
       with:
         if-no-files-found: error
         name: Installers-${{ matrix.platform.ARCHITECTURE }}

.github/workflows/windows_release.yml

@@ -14,16 +14,19 @@ permissions:
 
 jobs:
   release:
+    name: Release
     runs-on: windows-latest
     outputs:
       upload_url: "${{ steps.create_release.outputs.upload_url }}"
     steps:
+
       - name: "Checkout repository"
         uses: actions/checkout@v4
 
       - name: "Create GitHub release"
         id: create_release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
+
   build-windows:
     name: ${{ matrix.platform.ARCHITECTURE }}
     runs-on: windows-latest
@@ -35,15 +38,18 @@ jobs:
           { ARCHITECTURE: x64, COMPILER_PATH: "C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/Llvm/x64/bin/clang-cl.exe", VCPKG_TRIPLET: "x64-windows-static", VCVARS_PATH: "C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Auxiliary/Build/vcvars64.bat"}
         ]
     steps:
+
       - name: "Checkout repository"
         uses: actions/checkout@v4
         with:
           submodules: true
+
       - name: Cache vcpkg
         uses: actions/cache@v4
         with:
           path: 'build/vcpkg_installed/'
           key: vcpkg-release-${{ matrix.platform.VCPKG_TRIPLET }}
+ 
       - name: Set version variables
         run: |
           $b=(Get-Content CMakeSettings.json | Out-String | ConvertFrom-Json).environments.BuildNumber		
@@ -51,6 +57,7 @@ jobs:
           $v = python version.py
           echo "VERSION=$v" | Out-File -FilePath $Env:GITHUB_ENV -Encoding utf8 -Append
         shell: pwsh
+
       - name: Build
         env:
           ARCHITECTURE: ${{ matrix.platform.ARCHITECTURE }}
@@ -68,27 +75,19 @@ jobs:
           vpnsetup /SFXMODE:vpnserver_vpnbridge /SFXOUT:"installers\softether-vpnserver_vpnbridge-%VERSION%.%BUILD_NUMBER%.%ARCHITECTURE%.exe"
         shell: cmd
 
-      - name: dir
+      - name: Show directory items
         run: |
           Get-ChildItem -Recurse build/installers
         shell: pwsh
 
       - name: "Upload softether-vpnclient"
-        uses: actions/upload-release-asset@v1
+        uses: softprops/action-gh-release@v2
-        env:
-          GITHUB_TOKEN: "${{ github.token }}"
         with:
-          upload_url: "${{ needs.release.outputs.upload_url }}"
+          files: "build/installers/softether-vpnclient-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
-          asset_path: "build/installers/softether-vpnclient-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
+          name: "softether-vpnclient-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
-          asset_name: "softether-vpnclient-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
-          asset_content_type: "application/octet-stream"
-      - name: "Upload softether-vpnserver_vpnbridge"
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: "${{ github.token }}"
-        with:
-          upload_url: "${{ needs.release.outputs.upload_url }}"
-          asset_path: "build/installers/softether-vpnserver_vpnbridge-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
-          asset_name: "softether-vpnserver_vpnbridge-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
-          asset_content_type: "application/octet-stream"
           
+      - name: "Upload softether-vpnserver_vpnbridge"
+        uses: softprops/action-gh-release@v2
+        with:
+          files: "build/installers/softether-vpnserver_vpnbridge-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"
+          name: "softether-vpnserver_vpnbridge-${{ env.VERSION }}.${{ env.BUILD_NUMBER }}.${{ matrix.platform.ARCHITECTURE }}.exe"

src/Cedar/Proto_IKE.c

@@ -463,39 +463,13 @@ void ProcIPsecEspPacketRecv(IKE_SERVER *ike, UDPPACKET *p)
 	seq = READ_UINT(src + sizeof(UINT));
 
 	// Search and retrieve the IPsec SA from SPI
+
+	// thank to @phillibert report, responding to bad SA might lead to amplification
+	// according to RFC4303 we should drop such packets
+
 	ipsec_sa = SearchClientToServerIPsecSaBySpi(ike, spi);
 	if (ipsec_sa == NULL)
 	{
-		// Invalid SPI
-		UINT64 init_cookie = Rand64();
-		UINT64 resp_cookie = 0;
-		IKE_CLIENT *c = NULL;
-		IKE_CLIENT t;
-
-
-		Copy(&t.ClientIP, &p->SrcIP, sizeof(IP));
-		t.ClientPort = p->SrcPort;
-		Copy(&t.ServerIP, &p->DstIP, sizeof(IP));
-		t.ServerPort = p->DestPort;
-		t.CurrentIkeSa = NULL;
-
-		if (p->DestPort == IPSEC_PORT_IPSEC_ESP_RAW)
-		{
-			t.ClientPort = t.ServerPort = IPSEC_PORT_IPSEC_ISAKMP;
-		}
-
-		c = Search(ike->ClientList, &t);
-
-		if (c != NULL && c->CurrentIkeSa != NULL)
-		{
-			init_cookie = c->CurrentIkeSa->InitiatorCookie;
-			resp_cookie = c->CurrentIkeSa->ResponderCookie;
-		}
-
-		SendInformationalExchangePacketEx(ike, (c == NULL ? &t : c), IkeNewNoticeErrorInvalidSpiPayload(spi), false,
-			init_cookie, resp_cookie);
-
-		SendDeleteIPsecSaPacket(ike, (c == NULL ? &t : c), spi);
 		return;
 	}