Fix problems that golang inspection reported (#1158)

* fix lint issues

* fix all ui-common line issues

* max warnings 0

.github/workflows/static_code_analysis.yml

@@ -26,6 +26,7 @@ jobs:
         run: |
           sudo apt update
           sudo apt install -y libpcap-dev
+          ./devops/install-capstone.sh
 
       - name: Check Agent modified files
         id: agent_modified_files
@@ -37,7 +38,7 @@ jobs:
         with:
           version: latest
           working-directory: agent
-          args: --timeout=3m
+          args: --timeout=10m
 
       - name: Check shared modified files
         id: shared_modified_files
@@ -49,7 +50,7 @@ jobs:
         with:
           version: latest
           working-directory: shared
-          args: --timeout=3m
+          args: --timeout=10m
 
       - name: Check tap modified files
         id: tap_modified_files
@@ -61,7 +62,7 @@ jobs:
         with:
           version: latest
           working-directory: tap
-          args: --timeout=3m
+          args: --timeout=10m
 
       - name: Check cli modified files
         id: cli_modified_files
@@ -73,7 +74,7 @@ jobs:
         with:
           version: latest
           working-directory: cli
-          args: --timeout=3m
+          args: --timeout=10m
 
       - name: Check acceptanceTests modified files
         id: acceptanceTests_modified_files
@@ -85,7 +86,7 @@ jobs:
         with:
           version: latest
           working-directory: acceptanceTests
-          args: --timeout=3m
+          args: --timeout=10m
 
       - name: Check tap/api modified files
         id: tap_api_modified_files

.github/workflows/test.yml

@@ -35,6 +35,11 @@ jobs:
         run: |
           sudo apt-get install libpcap-dev
 
+      - name: Install Capstone
+        shell: bash
+        run: |
+          ./devops/install-capstone.sh
+
       - name: Check CLI modified files
         id: cli_modified_files
         run: devops/check_modified_files.sh cli/

Dockerfile

@@ -25,29 +25,46 @@ RUN npm run build
 ### Base builder image for native builds architecture
 FROM golang:1.17-alpine AS builder-native-base
 ENV CGO_ENABLED=1 GOOS=linux
-RUN apk add --no-cache libpcap-dev g++ perl-utils
+RUN apk add --no-cache \
+    libpcap-dev \
+    g++ \
+    perl-utils \
+    curl \
+    build-base \
+    binutils-gold \
+    bash \
+    clang \
+    llvm \
+    libbpf-dev \
+    linux-headers
+COPY devops/install-capstone.sh .
+RUN ./install-capstone.sh
 
 
 ### Intermediate builder image for x86-64 to x86-64 native builds
 FROM builder-native-base AS builder-from-amd64-to-amd64
 ENV GOARCH=amd64
+ENV BPF_TARGET=amd64 BPF_CFLAGS="-O2 -g -D__TARGET_ARCH_x86"
 
 
 ### Intermediate builder image for AArch64 to AArch64 native builds
 FROM builder-native-base AS builder-from-arm64v8-to-arm64v8
 ENV GOARCH=arm64
+ENV BPF_TARGET=arm64 BPF_CFLAGS="-O2 -g -D__TARGET_ARCH_arm64"
 
 
 ### Builder image for x86-64 to AArch64 cross-compilation
-FROM up9inc/linux-arm64-musl-go-libpcap AS builder-from-amd64-to-arm64v8
+FROM up9inc/linux-arm64-musl-go-libpcap-capstone-bpf AS builder-from-amd64-to-arm64v8
 ENV CGO_ENABLED=1 GOOS=linux
-ENV GOARCH=arm64 CGO_CFLAGS="-I/work/libpcap"
+ENV GOARCH=arm64 CGO_CFLAGS="-I/work/libpcap -I/work/capstone/include"
+ENV BPF_TARGET=arm64 BPF_CFLAGS="-O2 -g -D__TARGET_ARCH_arm64 -I/usr/xcc/aarch64-linux-musl-cross/aarch64-linux-musl/include/"
 
 
 ### Builder image for AArch64 to x86-64 cross-compilation
-FROM up9inc/linux-x86_64-musl-go-libpcap AS builder-from-arm64v8-to-amd64
+FROM up9inc/linux-x86_64-musl-go-libpcap-capstone-bpf AS builder-from-arm64v8-to-amd64
 ENV CGO_ENABLED=1 GOOS=linux
-ENV GOARCH=amd64 CGO_CFLAGS="-I/libpcap"
+ENV GOARCH=amd64 CGO_CFLAGS="-I/libpcap -I/capstone/include"
+ENV BPF_TARGET=amd64 BPF_CFLAGS="-O2 -g -D__TARGET_ARCH_x86  -I/usr/local/musl/x86_64-unknown-linux-musl/include/"
 
 
 ### Final builder image where the build happens
@@ -86,6 +103,11 @@ ARG GIT_BRANCH
 ARG BUILD_TIMESTAMP
 ARG VER=0.0
 
+WORKDIR /app/tap/tlstapper
+
+RUN rm tlstapper_bpf*
+RUN GOARCH=${BUILDARCH} go generate tls_tapper.go
+
 WORKDIR /app/agent-build
 
 RUN go build -ldflags="-extldflags=-static -s -w \
@@ -95,8 +117,8 @@ RUN go build -ldflags="-extldflags=-static -s -w \
     -X 'github.com/up9inc/mizu/agent/pkg/version.Ver=${VER}'" -o mizuagent .
 
 # Download Basenine executable, verify the sha1sum
-ADD https://github.com/up9inc/basenine/releases/download/v0.8.2/basenine_linux_${GOARCH} ./basenine_linux_${GOARCH}
-ADD https://github.com/up9inc/basenine/releases/download/v0.8.2/basenine_linux_${GOARCH}.sha256 ./basenine_linux_${GOARCH}.sha256
+ADD https://github.com/up9inc/basenine/releases/download/v0.8.3/basenine_linux_${GOARCH} ./basenine_linux_${GOARCH}
+ADD https://github.com/up9inc/basenine/releases/download/v0.8.3/basenine_linux_${GOARCH}.sha256 ./basenine_linux_${GOARCH}.sha256
 
 RUN shasum -a 256 -c basenine_linux_"${GOARCH}".sha256 && \
     chmod +x ./basenine_linux_"${GOARCH}" && \

acceptanceTests/cypress/e2e/tests/UiTest.js

@@ -269,7 +269,7 @@ function checkRightSideResponseBody() {
         const responseBody = JSON.parse(decodedBody);
 
 
-        const expectdJsonBody = {
+        const expectedJsonBody = {
             args: RegExp({}),
             url: RegExp('http://.*/get'),
             headers: {
@@ -279,27 +279,24 @@ function checkRightSideResponseBody() {
             }
         };
 
-        expect(responseBody.args).to.match(expectdJsonBody.args);
-        expect(responseBody.url).to.match(expectdJsonBody.url);
-        expect(responseBody.headers['User-Agent']).to.match(expectdJsonBody.headers['User-Agent']);
-        expect(responseBody.headers['Accept-Encoding']).to.match(expectdJsonBody.headers['Accept-Encoding']);
-        expect(responseBody.headers['X-Forwarded-Uri']).to.match(expectdJsonBody.headers['X-Forwarded-Uri']);
+        const expectedStringInJsonBody = RegExp('/api/v1/namespaces/.*/services/.*/proxy/get');
+        
+
+        expect(responseBody.args).to.match(expectedJsonBody.args);
+        expect(responseBody.url).to.match(expectedJsonBody.url);
+        expect(responseBody.headers['User-Agent']).to.match(expectedJsonBody.headers['User-Agent']);
+        expect(responseBody.headers['Accept-Encoding']).to.match(expectedJsonBody.headers['Accept-Encoding']);
+        expect(responseBody.headers['X-Forwarded-Uri']).to.match(expectedJsonBody.headers['X-Forwarded-Uri']);
 
         cy.get(`${Cypress.env('bodyJsonClass')}`).should('have.text', encodedBody);
+        cy.get(`[data-cy="lineNumbersCheckBoxInput"]`).should('be.disabled');
+
         clickCheckbox('Decode Base64');
+        cy.get(`[data-cy="lineNumbersCheckBoxInput"]`).should('not.be.disabled');
 
         cy.get(`${Cypress.env('bodyJsonClass')} > `).its('length').should('be.gt', 1).then(linesNum => {
             cy.get(`${Cypress.env('bodyJsonClass')} > >`).its('length').should('be.gt', linesNum).then(jsonItemsNum => {
-                // checkPrettyAndLineNums(decodedBody);
-
-                //clickCheckbox('Line numbers');
-                //checkPrettyOrNothing(jsonItemsNum, decodedBody);
-
-                // clickCheckbox('Pretty');
-                // checkPrettyOrNothing(jsonItemsNum, decodedBody);
-                //
-                // clickCheckbox('Line numbers');
-                // checkOnlyLineNumberes(jsonItemsNum, decodedBody);
+                checkOnlyLineNumberes(jsonItemsNum, expectedStringInJsonBody);
             });
         });
     });
@@ -309,37 +306,9 @@ function clickCheckbox(type) {
     cy.contains(`${type}`).prev().children().click();
 }
 
-function checkPrettyAndLineNums(decodedBody) {
-    decodedBody = decodedBody.replaceAll(' ', '');
-    cy.get(`${Cypress.env('bodyJsonClass')} >`).then(elements => {
-        const lines = Object.values(elements);
-        lines.forEach((line, index) => {
-            if (line.getAttribute) {
-                const cleanLine = getCleanLine(line);
-                const currentLineFromDecodedText = decodedBody.substring(0, cleanLine.length);
-
-                expect(cleanLine).to.equal(currentLineFromDecodedText, `expected the text in line number ${index + 1} to match the text that generated by the base64 decoding`)
-
-                decodedBody = decodedBody.substring(cleanLine.length);
-            }
-        });
-    });
-}
-
-function getCleanLine(lineElement) {
-    return (lineElement.innerText.substring(0, lineElement.innerText.length - 1)).replaceAll(' ', '');
-}
-
-function checkPrettyOrNothing(jsonItems, decodedBody) {
-    cy.get(`${Cypress.env('bodyJsonClass')} > `).should('have.length', jsonItems).then(text => {
-        const json = text.text();
-        expect(json).to.equal(decodedBody);
-    });
-}
-
 function checkOnlyLineNumberes(jsonItems, decodedText) {
-    cy.get(`${Cypress.env('bodyJsonClass')} >`).should('have.length', 1).and('have.text', decodedText);
-    cy.get(`${Cypress.env('bodyJsonClass')} > >`).should('have.length', jsonItems)
+    cy.get(`${Cypress.env('bodyJsonClass')} > >`).should('have.length', jsonItems);
+    cy.get(`${Cypress.env('bodyJsonClass')} >`).contains(decodedText);
 }
 
 function serviceMapCheck() {

acceptanceTests/extensions_test.go

@@ -109,6 +109,9 @@ func TestRedis(t *testing.T) {
 }
 
 func TestAmqp(t *testing.T) {
+
+	t.Skip("ignoredd for now because those tests are not stable")
+
 	if testing.Short() {
 		t.Skip("ignored acceptance test")
 	}

acceptanceTests/setup.sh

@@ -27,7 +27,7 @@ else
 fi
 
 echo "Starting minikube..."
-minikube start
+minikube start --cpus 2 --memory 6946
 
 echo "Creating mizu tests namespaces"
 kubectl create namespace mizu-tests --dry-run=client -o yaml | kubectl apply -f -
@@ -57,7 +57,6 @@ kubectl expose deployment redis --type=LoadBalancer --port=6379 -n mizu-tests --
 echo "Creating rabbitmq service"
 kubectl expose deployment rabbitmq --type=LoadBalancer --port=5672 -n mizu-tests --dry-run=client -o yaml | kubectl apply -f -
 
-# TODO: need to understand how to fail if address already in use
 echo "Starting proxy"
 rm -f ${PROXY_LOG}
 kubectl proxy --port=8080 > ${PROXY_LOG} &
@@ -78,7 +77,6 @@ minikube image load "${MIZU_CI_IMAGE}"
 echo "Build cli"
 cd cli && make build GIT_BRANCH=ci SUFFIX=ci
 
-# TODO: need to understand how to fail if password is asked (sudo)
 echo "Starting tunnel"
 rm -f ${TUNNEL_LOG}
 minikube tunnel > ${TUNNEL_LOG} &

acceptanceTests/testsUtils.go

@@ -6,10 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/client-go/kubernetes"
-	"k8s.io/client-go/tools/clientcmd"
-	"k8s.io/client-go/util/homedir"
 	"net/http"
 	"os"
 	"os/exec"
@@ -20,6 +16,11 @@ import (
 	"testing"
 	"time"
 
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/tools/clientcmd"
+	"k8s.io/client-go/util/homedir"
+
 	"github.com/up9inc/mizu/shared"
 )
 
@@ -175,7 +176,7 @@ func ApplyKubeFilesForTest(t *testing.T, kubeContext string, namespace string, f
 	return nil
 }
 
-func ApplyKubeFile(kubeContext string, namespace string, filename string) (error) {
+func ApplyKubeFile(kubeContext string, namespace string, filename string) error {
 	cmdArgs := []string{
 		"apply",
 		"--context", kubeContext,

agent/go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/op/go-logging v0.0.0-20160315200505-970db520ece7
 	github.com/orcaman/concurrent-map v1.0.0
 	github.com/stretchr/testify v1.7.0
-	github.com/up9inc/basenine/client/go v0.0.0-20220509204026-c37adfc587f4
+	github.com/up9inc/basenine/client/go v0.0.0-20220612112747-3b28eeac9c51
 	github.com/up9inc/mizu/logger v0.0.0
 	github.com/up9inc/mizu/shared v0.0.0
 	github.com/up9inc/mizu/tap v0.0.0
@@ -47,12 +47,13 @@ require (
 	github.com/Azure/go-autorest/logger v0.2.1 // indirect
 	github.com/Azure/go-autorest/tracing v0.6.0 // indirect
 	github.com/MakeNowJust/heredoc v1.0.0 // indirect
+	github.com/Masterminds/semver v1.5.0 // indirect
 	github.com/PuerkitoBio/purell v1.1.1 // indirect
 	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
 	github.com/beevik/etree v1.1.0 // indirect
 	github.com/chai2010/gettext-go v0.0.0-20160711120539-c6fed771bfd5 // indirect
 	github.com/chanced/dynamic v0.0.0-20211210164248-f8fadb1d735b // indirect
-	github.com/cilium/ebpf v0.8.0 // indirect
+	github.com/cilium/ebpf v0.8.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
 	github.com/exponent-io/jsonpath v0.0.0-20210407135951-1de76d718b3f // indirect
@@ -84,6 +85,7 @@ require (
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.14.2 // indirect
+	github.com/knightsc/gapstone v0.0.0-20211014144438-5e0e64002a6e // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
 	github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect

agent/go.sum

@@ -77,6 +77,8 @@ github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3
 github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd/go.mod h1:64YHyfSL2R96J44Nlwm39UHepQbyR5q10x7iYa1ks2E=
 github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=
 github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
+github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
+github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
@@ -126,8 +128,8 @@ github.com/chanced/openapi v0.0.8/go.mod h1:SxE2VMLPw+T7Vq8nwbVVhDF2PigvRF4n5Xyq
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
-github.com/cilium/ebpf v0.8.0 h1:2V6KSg3FRADVU2BMIRemZ0hV+9OM+aAHhZDjQyjJTAs=
-github.com/cilium/ebpf v0.8.0/go.mod h1:f5zLIM0FSNuAkSyLAN7X+Hy6yznlF1mNiWUMfxMtrgk=
+github.com/cilium/ebpf v0.8.1 h1:bLSSEbBLqGPXxls55pGr5qWZaTqcmfDJHhou7t254ao=
+github.com/cilium/ebpf v0.8.1/go.mod h1:f5zLIM0FSNuAkSyLAN7X+Hy6yznlF1mNiWUMfxMtrgk=
 github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
 github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
@@ -455,6 +457,8 @@ github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+o
 github.com/klauspost/compress v1.9.8/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
 github.com/klauspost/compress v1.14.2 h1:S0OHlFk/Gbon/yauFJ4FfJJF5V0fc5HbBTJazi28pRw=
 github.com/klauspost/compress v1.14.2/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
+github.com/knightsc/gapstone v0.0.0-20211014144438-5e0e64002a6e h1:6J5obSn9umEThiYzWzndcPOZR0Qj/sVCZpH6V1G7yNE=
+github.com/knightsc/gapstone v0.0.0-20211014144438-5e0e64002a6e/go.mod h1:1K5hEzsMBLTPdRJKEHqBFJ8Zt2VRqDhomcQ11KH0WW4=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
@@ -694,8 +698,8 @@ github.com/ugorji/go v1.2.6/go.mod h1:anCg0y61KIhDlPZmnH+so+RQbysYVyDko0IMgJv0Nn
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
 github.com/ugorji/go/codec v1.2.6 h1:7kbGefxLoDBuYXOms4yD7223OpNMMPNPZxXk5TvFcyQ=
 github.com/ugorji/go/codec v1.2.6/go.mod h1:V6TCNZ4PHqoHGFZuSG1W8nrCzzdgA2DozYxWFFpvxTw=
-github.com/up9inc/basenine/client/go v0.0.0-20220509204026-c37adfc587f4 h1:nNOrU1HVH0fnaG7GNhxCc8kNPVL035Iix7ihUF6lZT8=
-github.com/up9inc/basenine/client/go v0.0.0-20220509204026-c37adfc587f4/go.mod h1:SvJGPoa/6erhUQV7kvHBwM/0x5LyO6XaG2lUaCaKiUI=
+github.com/up9inc/basenine/client/go v0.0.0-20220612112747-3b28eeac9c51 h1:6op+PUYmTlxze3V3f30lWKix3sWqv1M9rvRhyaxbsdQ=
+github.com/up9inc/basenine/client/go v0.0.0-20220612112747-3b28eeac9c51/go.mod h1:SvJGPoa/6erhUQV7kvHBwM/0x5LyO6XaG2lUaCaKiUI=
 github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 h1:gga7acRE695APm9hlsSMoOoE65U4/TcqNj90mc69Rlg=
 github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
 github.com/wI2L/jsondiff v0.1.1 h1:r2TkoEet7E4JMO5+s1RCY2R0LrNPNHY6hbDeow2hRHw=

agent/main.go

@@ -118,7 +118,7 @@ func hostApi(socketHarOutputChannel chan<- *tapApi.OutputChannelItem) *gin.Engin
 
 	api.WebSocketRoutes(ginApp, &eventHandlers)
 
-	if config.Config.OAS {
+	if config.Config.OAS.Enable {
 		routes.OASRoutes(ginApp)
 	}
 
@@ -200,7 +200,7 @@ func runInHarReaderMode() {
 }
 
 func enableExpFeatureIfNeeded() {
-	if config.Config.OAS {
+	if config.Config.OAS.Enable {
 		oasGenerator := dependency.GetInstance(dependency.OasGeneratorDependency).(oas.OasGenerator)
 		oasGenerator.Start()
 	}
@@ -227,7 +227,7 @@ func setUIFlags(uiIndexPath string) error {
 		return err
 	}
 
-	replacedContent := strings.Replace(string(read), "__IS_OAS_ENABLED__", strconv.FormatBool(config.Config.OAS), 1)
+	replacedContent := strings.Replace(string(read), "__IS_OAS_ENABLED__", strconv.FormatBool(config.Config.OAS.Enable), 1)
 	replacedContent = strings.Replace(replacedContent, "__IS_SERVICE_MAP_ENABLED__", strconv.FormatBool(config.Config.ServiceMap), 1)
 
 	err = ioutil.WriteFile(uiIndexPath, []byte(replacedContent), 0)
@@ -363,7 +363,7 @@ func handleIncomingMessageAsTapper(socketConnection *websocket.Conn) {
 
 func initializeDependencies() {
 	dependency.RegisterGenerator(dependency.ServiceMapGeneratorDependency, func() interface{} { return servicemap.GetDefaultServiceMapInstance() })
-	dependency.RegisterGenerator(dependency.OasGeneratorDependency, func() interface{} { return oas.GetDefaultOasGeneratorInstance() })
+	dependency.RegisterGenerator(dependency.OasGeneratorDependency, func() interface{} { return oas.GetDefaultOasGeneratorInstance(config.Config.OAS.MaxExampleLen) })
 	dependency.RegisterGenerator(dependency.EntriesInserter, func() interface{} { return api.GetBasenineEntryInserterInstance() })
 	dependency.RegisterGenerator(dependency.EntriesProvider, func() interface{} { return &entries.BasenineEntriesProvider{} })
 	dependency.RegisterGenerator(dependency.EntriesSocketStreamer, func() interface{} { return &api.BasenineEntryStreamer{} })

agent/pkg/api/contract_validation.go

@@ -24,13 +24,13 @@ const (
 
 func loadOAS(ctx context.Context) (doc *openapi3.T, contractContent string, router routers.Router, err error) {
 	path := fmt.Sprintf("%s%s", shared.ConfigDirPath, shared.ContractFileName)
-	bytes, err := ioutil.ReadFile(path)
+	bytesValue, err := ioutil.ReadFile(path)
 	if err != nil {
 		return
 	}
-	contractContent = string(bytes)
+	contractContent = string(bytesValue)
 	loader := &openapi3.Loader{Context: ctx}
-	doc, _ = loader.LoadFromData(bytes)
+	doc, _ = loader.LoadFromData(bytesValue)
 	err = doc.Validate(ctx)
 	if err != nil {
 		return

agent/pkg/api/main.go

@@ -11,16 +11,15 @@ import (
 	"strings"
 	"time"
 
-	"github.com/up9inc/mizu/agent/pkg/models"
-
 	"github.com/up9inc/mizu/agent/pkg/dependency"
+	"github.com/up9inc/mizu/agent/pkg/models"
+	"github.com/up9inc/mizu/agent/pkg/oas"
+	"github.com/up9inc/mizu/agent/pkg/servicemap"
+
 	"github.com/up9inc/mizu/agent/pkg/har"
 	"github.com/up9inc/mizu/agent/pkg/holder"
 	"github.com/up9inc/mizu/agent/pkg/providers"
 
-	"github.com/up9inc/mizu/agent/pkg/oas"
-	"github.com/up9inc/mizu/agent/pkg/servicemap"
-
 	"github.com/up9inc/mizu/agent/pkg/resolver"
 	"github.com/up9inc/mizu/agent/pkg/utils"
 
@@ -112,7 +111,7 @@ func startReadingChannel(outputItems <-chan *tapApi.OutputChannelItem, extension
 		extension := extensionsMap[item.Protocol.Name]
 		resolvedSource, resolvedDestionation, namespace := resolveIP(item.ConnectionInfo)
 
-		if namespace == "" && item.Namespace != tapApi.UNKNOWN_NAMESPACE {
+		if namespace == "" && item.Namespace != tapApi.UnknownNamespace {
 			namespace = item.Namespace
 		}
 
@@ -144,13 +143,14 @@ func startReadingChannel(outputItems <-chan *tapApi.OutputChannelItem, extension
 			continue
 		}
 
-		providers.EntryAdded(len(data))
-
 		entryInserter := dependency.GetInstance(dependency.EntriesInserter).(EntryInserter)
 		if err := entryInserter.Insert(mizuEntry); err != nil {
 			logger.Log.Errorf("Error inserting entry, err: %v", err)
 		}
 
+		summary := extension.Dissector.Summarize(mizuEntry)
+		providers.EntryAdded(len(data), summary)
+
 		serviceMapGenerator := dependency.GetInstance(dependency.ServiceMapGeneratorDependency).(servicemap.ServiceMapSink)
 		serviceMapGenerator.NewTCPEntry(mizuEntry.Source, mizuEntry.Destination, &item.Protocol)
 

agent/pkg/controllers/entries_controller.go

@@ -44,10 +44,10 @@ func GetEntries(c *gin.Context) {
 	}
 
 	entriesProvider := dependency.GetInstance(dependency.EntriesProvider).(entries.EntriesProvider)
-	entries, metadata, err := entriesProvider.GetEntries(entriesRequest)
+	entryWrappers, metadata, err := entriesProvider.GetEntries(entriesRequest)
 	if !HandleEntriesError(c, err) {
 		baseEntries := make([]interface{}, 0)
-		for _, entry := range entries {
+		for _, entry := range entryWrappers {
 			baseEntries = append(baseEntries, entry.Base)
 		}
 		c.JSON(http.StatusOK, models.EntriesResponse{

agent/pkg/controllers/oas_controller_test.go

@@ -34,12 +34,12 @@ func TestGetOASSpec(t *testing.T) {
 
 func getRecorderAndContext() (*httptest.ResponseRecorder, *gin.Context) {
 	dependency.RegisterGenerator(dependency.OasGeneratorDependency, func() interface{} {
-		return oas.GetDefaultOasGeneratorInstance()
+		return oas.GetDefaultOasGeneratorInstance(-1)
 	})
 
 	recorder := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(recorder)
-	oas.GetDefaultOasGeneratorInstance().Start()
-	oas.GetDefaultOasGeneratorInstance().GetServiceSpecs().Store("some", oas.NewGen("some"))
+	oas.GetDefaultOasGeneratorInstance(-1).Start()
+	oas.GetDefaultOasGeneratorInstance(-1).GetServiceSpecs().Store("some", oas.NewGen("some"))
 	return recorder, c
 }

agent/pkg/controllers/status_controller.go

@@ -79,6 +79,15 @@ func GetGeneralStats(c *gin.Context) {
 	c.JSON(http.StatusOK, providers.GetGeneralStats())
 }
 
+func GetAccumulativeStats(c *gin.Context) {
+	c.JSON(http.StatusOK, providers.GetAccumulativeStats())
+}
+
+func GetAccumulativeStatsTiming(c *gin.Context) {
+	// for now hardcoded 10 bars of 5 minutes interval
+	c.JSON(http.StatusOK, providers.GetAccumulativeStatsTiming(300, 10))
+}
+
 func GetCurrentResolvingInformation(c *gin.Context) {
 	c.JSON(http.StatusOK, holder.GetResolver().GetMap())
 }

agent/pkg/dependency/container.go

@@ -1,11 +1,11 @@
 package dependency
 
-var typeIntializerMap = make(map[DependencyContainerType]func() interface{}, 0)
+var typeInitializerMap = make(map[ContainerType]func() interface{}, 0)
 
-func RegisterGenerator(name DependencyContainerType, fn func() interface{}) {
-	typeIntializerMap[name] = fn
+func RegisterGenerator(name ContainerType, fn func() interface{}) {
+	typeInitializerMap[name] = fn
 }
 
-func GetInstance(name DependencyContainerType) interface{} {
-	return typeIntializerMap[name]()
+func GetInstance(name ContainerType) interface{} {
+	return typeInitializerMap[name]()
 }

agent/pkg/dependency/type_names.go

@@ -1,12 +1,12 @@
 package dependency
 
-type DependencyContainerType string
+type ContainerType string
 
 const (
-	ServiceMapGeneratorDependency = "ServiceMapGeneratorDependency"
-	OasGeneratorDependency        = "OasGeneratorDependency"
-	EntriesInserter               = "EntriesInserter"
-	EntriesProvider               = "EntriesProvider"
-	EntriesSocketStreamer         = "EntriesSocketStreamer"
-	EntryStreamerSocketConnector  = "EntryStreamerSocketConnector"
+	ServiceMapGeneratorDependency ContainerType = "ServiceMapGeneratorDependency"
+	OasGeneratorDependency        ContainerType = "OasGeneratorDependency"
+	EntriesInserter               ContainerType = "EntriesInserter"
+	EntriesProvider               ContainerType = "EntriesProvider"
+	EntriesSocketStreamer         ContainerType = "EntriesSocketStreamer"
+	EntryStreamerSocketConnector  ContainerType = "EntryStreamerSocketConnector"
 )

agent/pkg/oas/ignores.go

@@ -9,7 +9,7 @@ var ignoredCtypes = []string{"application/javascript", "application/x-javascript
 
 var ignoredHeaders = []string{
 	"a-im", "accept",
-	"authorization", "cache-control", "connection", "content-encoding", "content-length", "content-type", "cookie",
+	"authorization", "cache-control", "connection", "content-encoding", "content-length", "content-range", "content-type", "cookie",
 	"date", "dnt", "expect", "forwarded", "from", "front-end-https", "host", "http2-settings",
 	"max-forwards", "origin", "pragma", "proxy-authorization", "proxy-connection", "range", "referer",
 	"save-data", "te", "trailer", "transfer-encoding", "upgrade", "upgrade-insecure-requests", "x-download-options",

agent/pkg/oas/oas_generator.go

@@ -28,13 +28,14 @@ type OasGenerator interface {
 }
 
 type defaultOasGenerator struct {
-	started      bool
-	serviceSpecs *sync.Map
+	started       bool
+	serviceSpecs  *sync.Map
+	maxExampleLen int
 }
 
-func GetDefaultOasGeneratorInstance() *defaultOasGenerator {
+func GetDefaultOasGeneratorInstance(maxExampleLen int) *defaultOasGenerator {
 	syncOnce.Do(func() {
-		instance = NewDefaultOasGenerator()
+		instance = NewDefaultOasGenerator(maxExampleLen)
 		logger.Log.Debug("OAS Generator Initialized")
 	})
 	return instance
@@ -117,6 +118,7 @@ func (g *defaultOasGenerator) getGen(dest string, urlStr string) *SpecGen {
 	var gen *SpecGen
 	if !found {
 		gen = NewGen(u.Scheme + "://" + dest)
+		gen.MaxExampleLen = g.maxExampleLen
 		g.serviceSpecs.Store(dest, gen)
 	} else {
 		gen = val.(*SpecGen)
@@ -132,9 +134,10 @@ func (g *defaultOasGenerator) GetServiceSpecs() *sync.Map {
 	return g.serviceSpecs
 }
 
-func NewDefaultOasGenerator() *defaultOasGenerator {
+func NewDefaultOasGenerator(maxExampleLen int) *defaultOasGenerator {
 	return &defaultOasGenerator{
-		started:      false,
-		serviceSpecs: &sync.Map{},
+		started:       false,
+		serviceSpecs:  &sync.Map{},
+		maxExampleLen: maxExampleLen,
 	}
 }

agent/pkg/oas/oas_generator_test.go

@@ -8,7 +8,7 @@ import (
 )
 
 func TestOASGen(t *testing.T) {
-	gen := GetDefaultOasGeneratorInstance()
+	gen := GetDefaultOasGeneratorInstance(-1)
 
 	e := new(har.Entry)
 	err := json.Unmarshal([]byte(`{"startedDateTime": "20000101","request": {"url": "https://host/path", "method": "GET"}, "response": {"status": 200}}`), e)

agent/pkg/oas/specgen.go

@@ -42,6 +42,8 @@ type reqResp struct { // hello, generics in Go
 }
 
 type SpecGen struct {
+	MaxExampleLen int // -1 unlimited, 0 and above sets limit
+
 	oas  *openapi.OpenAPI
 	tree *Node
 	lock sync.Mutex
@@ -59,7 +61,11 @@ func NewGen(server string) *SpecGen {
 	spec.Servers = make([]*openapi.Server, 0)
 	spec.Servers = append(spec.Servers, &openapi.Server{URL: server})
 
-	gen := SpecGen{oas: spec, tree: new(Node)}
+	gen := SpecGen{
+		oas:           spec,
+		tree:          new(Node),
+		MaxExampleLen: -1,
+	}
 	return &gen
 }
 
@@ -228,7 +234,7 @@ func (g *SpecGen) handlePathObj(entryWithSource *EntryWithSource) (string, error
 		split = strings.Split(urlParsed.Path, "/")
 	}
 	node := g.tree.getOrSet(split, new(openapi.PathObj), entryWithSource.Id)
-	opObj, err := handleOpObj(entryWithSource, node.pathObj)
+	opObj, err := handleOpObj(entryWithSource, node.pathObj, g.MaxExampleLen)
 
 	if opObj != nil {
 		return opObj.OperationID, err
@@ -237,7 +243,7 @@ func (g *SpecGen) handlePathObj(entryWithSource *EntryWithSource) (string, error
 	return "", err
 }
 
-func handleOpObj(entryWithSource *EntryWithSource, pathObj *openapi.PathObj) (*openapi.Operation, error) {
+func handleOpObj(entryWithSource *EntryWithSource, pathObj *openapi.PathObj, limit int) (*openapi.Operation, error) {
 	entry := entryWithSource.Entry
 	isSuccess := 100 <= entry.Response.Status && entry.Response.Status < 400
 	opObj, wasMissing, err := getOpObj(pathObj, entry.Request.Method, isSuccess)
@@ -250,12 +256,12 @@ func handleOpObj(entryWithSource *EntryWithSource, pathObj *openapi.PathObj) (*o
 		return nil, nil
 	}
 
-	err = handleRequest(&entry.Request, opObj, isSuccess, entryWithSource.Id)
+	err = handleRequest(&entry.Request, opObj, isSuccess, entryWithSource.Id, limit)
 	if err != nil {
 		return nil, err
 	}
 
-	err = handleResponse(&entry.Response, opObj, isSuccess, entryWithSource.Id)
+	err = handleResponse(&entry.Response, opObj, isSuccess, entryWithSource.Id, limit)
 	if err != nil {
 		return nil, err
 	}
@@ -342,7 +348,7 @@ func handleCounters(opObj *openapi.Operation, success bool, entryWithSource *Ent
 	return nil
 }
 
-func handleRequest(req *har.Request, opObj *openapi.Operation, isSuccess bool, sampleId string) error {
+func handleRequest(req *har.Request, opObj *openapi.Operation, isSuccess bool, sampleId string, limit int) error {
 	// TODO: we don't handle the situation when header/qstr param can be defined on pathObj level. Also the path param defined on opObj
 	urlParsed, err := url.Parse(req.URL)
 	if err != nil {
@@ -390,7 +396,7 @@ func handleRequest(req *har.Request, opObj *openapi.Operation, isSuccess bool, s
 			} else {
 
 				reqCtype, _ := getReqCtype(req)
-				reqMedia, err := fillContent(reqResp{Req: req}, reqBody.Content, reqCtype, sampleId)
+				reqMedia, err := fillContent(reqResp{Req: req}, reqBody.Content, reqCtype, sampleId, limit)
 				if err != nil {
 					return err
 				}
@@ -402,7 +408,7 @@ func handleRequest(req *har.Request, opObj *openapi.Operation, isSuccess bool, s
 	return nil
 }
 
-func handleResponse(resp *har.Response, opObj *openapi.Operation, isSuccess bool, sampleId string) error {
+func handleResponse(resp *har.Response, opObj *openapi.Operation, isSuccess bool, sampleId string, limit int) error {
 	// TODO: we don't support "default" response
 	respObj, err := getResponseObj(resp, opObj, isSuccess)
 	if err != nil {
@@ -415,7 +421,7 @@ func handleResponse(resp *har.Response, opObj *openapi.Operation, isSuccess bool
 
 	respCtype := getRespCtype(resp)
 	respContent := respObj.Content
-	respMedia, err := fillContent(reqResp{Resp: resp}, respContent, respCtype, sampleId)
+	respMedia, err := fillContent(reqResp{Resp: resp}, respContent, respCtype, sampleId, limit)
 	if err != nil {
 		return err
 	}
@@ -467,7 +473,7 @@ func handleRespHeaders(reqHeaders []har.Header, respObj *openapi.ResponseObj, sa
 	}
 }
 
-func fillContent(reqResp reqResp, respContent openapi.Content, ctype string, sampleId string) (*openapi.MediaType, error) {
+func fillContent(reqResp reqResp, respContent openapi.Content, ctype string, sampleId string, limit int) (*openapi.MediaType, error) {
 	content, found := respContent[ctype]
 	if !found {
 		respContent[ctype] = &openapi.MediaType{}
@@ -510,7 +516,7 @@ func fillContent(reqResp reqResp, respContent openapi.Content, ctype string, sam
 			handleFormDataMultipart(text, content, params)
 		}
 
-		if content.Example == nil && len(exampleMsg) > len(content.Example) {
+		if len(exampleMsg) > len(content.Example) && (limit < 0 || len(exampleMsg) <= limit) {
 			content.Example = exampleMsg
 		}
 	}

agent/pkg/oas/specgen_test.go

@@ -48,7 +48,7 @@ func TestEntries(t *testing.T) {
 		t.FailNow()
 	}
 
-	gen := NewDefaultOasGenerator()
+	gen := NewDefaultOasGenerator(-1)
 	gen.serviceSpecs = new(sync.Map)
 	loadStartingOAS("test_artifacts/catalogue.json", "catalogue", gen.serviceSpecs)
 	loadStartingOAS("test_artifacts/trcc.json", "trcc-api-service", gen.serviceSpecs)
@@ -122,7 +122,7 @@ func TestEntries(t *testing.T) {
 }
 
 func TestFileSingle(t *testing.T) {
-	gen := NewDefaultOasGenerator()
+	gen := NewDefaultOasGenerator(-1)
 	gen.serviceSpecs = new(sync.Map)
 	// loadStartingOAS()
 	file := "test_artifacts/params.har"
@@ -212,7 +212,7 @@ func loadStartingOAS(file string, label string, specs *sync.Map) {
 }
 
 func TestEntriesNegative(t *testing.T) {
-	gen := NewDefaultOasGenerator()
+	gen := NewDefaultOasGenerator(-1)
 	gen.serviceSpecs = new(sync.Map)
 	files := []string{"invalid"}
 	_, err := feedEntries(files, false, gen)
@@ -223,7 +223,7 @@ func TestEntriesNegative(t *testing.T) {
 }
 
 func TestEntriesPositive(t *testing.T) {
-	gen := NewDefaultOasGenerator()
+	gen := NewDefaultOasGenerator(-1)
 	gen.serviceSpecs = new(sync.Map)
 	files := []string{"test_artifacts/params.har"}
 	_, err := feedEntries(files, false, gen)

agent/pkg/oas/test_artifacts/params.har.spec.json

@@ -333,7 +333,7 @@
                   }
                 }
               },
-              "example": "agent-id=ade\u0026callback-url=\u0026token=sometoken",
+              "example": "agent-id=ade\u0026callback-url=\u0026token=sometoken-second-val\u0026optional=another",
               "x-sample-entry": "000000000000000000000008"
             }
           },

agent/pkg/providers/stats_provider.go

@@ -2,7 +2,12 @@ package providers
 
 import (
 	"reflect"
+	"sync"
 	"time"
+
+	"github.com/jinzhu/copier"
+	"github.com/up9inc/mizu/logger"
+	"github.com/up9inc/mizu/tap/api"
 )
 
 type GeneralStats struct {
@@ -12,7 +17,49 @@ type GeneralStats struct {
 	LastEntryTimestamp  int
 }
 
-var generalStats = GeneralStats{}
+type BucketStats []*TimeFrameStatsValue
+
+type TimeFrameStatsValue struct {
+	BucketTime    time.Time                `json:"timestamp"`
+	ProtocolStats map[string]ProtocolStats `json:"protocols"`
+}
+
+type ProtocolStats struct {
+	MethodsStats map[string]*SizeAndEntriesCount `json:"methods"`
+	Color        string                          `json:"color"`
+}
+
+type SizeAndEntriesCount struct {
+	EntriesCount  int `json:"entriesCount"`
+	VolumeInBytes int `json:"volumeInBytes"`
+}
+
+type AccumulativeStatsCounter struct {
+	Name            string `json:"name"`
+	EntriesCount    int    `json:"entriesCount"`
+	VolumeSizeBytes int    `json:"volumeSizeBytes"`
+}
+
+type AccumulativeStatsProtocol struct {
+	AccumulativeStatsCounter
+	Color   string                      `json:"color"`
+	Methods []*AccumulativeStatsCounter `json:"methods"`
+}
+
+type AccumulativeStatsProtocolTime struct {
+	ProtocolsData []*AccumulativeStatsProtocol `json:"protocols"`
+	Time          int64                        `json:"timestamp"`
+}
+
+var (
+	generalStats      = GeneralStats{}
+	bucketsStats      = BucketStats{}
+	bucketStatsLocker = sync.Mutex{}
+)
+
+const (
+	InternalBucketThreshold = time.Minute * 1
+)
 
 func ResetGeneralStats() {
 	generalStats = GeneralStats{}
@@ -22,7 +69,31 @@ func GetGeneralStats() GeneralStats {
 	return generalStats
 }
 
-func EntryAdded(size int) {
+func GetAccumulativeStats() []*AccumulativeStatsProtocol {
+	bucketStatsCopy := getBucketStatsCopy()
+	if len(bucketStatsCopy) == 0 {
+		return make([]*AccumulativeStatsProtocol, 0)
+	}
+
+	methodsPerProtocolAggregated, protocolToColor := getAggregatedStatsAllTime(bucketStatsCopy)
+
+	return convertAccumulativeStatsDictToArray(methodsPerProtocolAggregated, protocolToColor)
+}
+
+func GetAccumulativeStatsTiming(intervalSeconds int, numberOfBars int) []*AccumulativeStatsProtocolTime {
+	bucketStatsCopy := getBucketStatsCopy()
+	if len(bucketStatsCopy) == 0 {
+		return make([]*AccumulativeStatsProtocolTime, 0)
+	}
+
+	firstBucketTime := getFirstBucketTime(time.Now().UTC(), intervalSeconds, numberOfBars)
+
+	methodsPerProtocolPerTimeAggregated, protocolToColor := getAggregatedResultTimingFromSpecificTime(intervalSeconds, bucketStatsCopy, firstBucketTime)
+
+	return convertAccumulativeStatsTimelineDictToArray(methodsPerProtocolPerTimeAggregated, protocolToColor)
+}
+
+func EntryAdded(size int, summery *api.BaseEntry) {
 	generalStats.EntriesCount++
 	generalStats.EntriesVolumeInGB += float64(size) / (1 << 30)
 
@@ -32,5 +103,186 @@ func EntryAdded(size int) {
 		generalStats.FirstEntryTimestamp = currentTimestamp
 	}
 
+	addToBucketStats(size, summery)
+
 	generalStats.LastEntryTimestamp = currentTimestamp
 }
+
+func addToBucketStats(size int, summery *api.BaseEntry) {
+	entryTimeBucketRounded := getBucketFromTimeStamp(summery.Timestamp)
+
+	if len(bucketsStats) == 0 {
+		bucketsStats = append(bucketsStats, &TimeFrameStatsValue{
+			BucketTime:    entryTimeBucketRounded,
+			ProtocolStats: map[string]ProtocolStats{},
+		})
+	}
+	bucketOfEntry := bucketsStats[len(bucketsStats)-1]
+	if bucketOfEntry.BucketTime != entryTimeBucketRounded {
+		bucketOfEntry = &TimeFrameStatsValue{
+			BucketTime:    entryTimeBucketRounded,
+			ProtocolStats: map[string]ProtocolStats{},
+		}
+		bucketsStats = append(bucketsStats, bucketOfEntry)
+	}
+	if _, found := bucketOfEntry.ProtocolStats[summery.Protocol.Abbreviation]; !found {
+		bucketOfEntry.ProtocolStats[summery.Protocol.Abbreviation] = ProtocolStats{
+			MethodsStats: map[string]*SizeAndEntriesCount{},
+			Color:        summery.Protocol.BackgroundColor,
+		}
+	}
+	if _, found := bucketOfEntry.ProtocolStats[summery.Protocol.Abbreviation].MethodsStats[summery.Method]; !found {
+		bucketOfEntry.ProtocolStats[summery.Protocol.Abbreviation].MethodsStats[summery.Method] = &SizeAndEntriesCount{
+			VolumeInBytes: 0,
+			EntriesCount:  0,
+		}
+	}
+
+	bucketOfEntry.ProtocolStats[summery.Protocol.Abbreviation].MethodsStats[summery.Method].EntriesCount += 1
+	bucketOfEntry.ProtocolStats[summery.Protocol.Abbreviation].MethodsStats[summery.Method].VolumeInBytes += size
+}
+
+func getBucketFromTimeStamp(timestamp int64) time.Time {
+	entryTimeStampAsTime := time.UnixMilli(timestamp)
+	return entryTimeStampAsTime.Add(-1 * InternalBucketThreshold / 2).Round(InternalBucketThreshold)
+}
+
+func getFirstBucketTime(endTime time.Time, intervalSeconds int, numberOfBars int) time.Time {
+	lastBucketTime := endTime.Add(-1 * time.Second * time.Duration(intervalSeconds) / 2).Round(time.Second * time.Duration(intervalSeconds))
+	firstBucketTime := lastBucketTime.Add(-1 * time.Second * time.Duration(intervalSeconds*(numberOfBars-1)))
+	return firstBucketTime
+}
+
+func convertAccumulativeStatsTimelineDictToArray(methodsPerProtocolPerTimeAggregated map[time.Time]map[string]map[string]*AccumulativeStatsCounter, protocolToColor map[string]string) []*AccumulativeStatsProtocolTime {
+	finalResult := make([]*AccumulativeStatsProtocolTime, 0)
+	for timeKey, item := range methodsPerProtocolPerTimeAggregated {
+		protocolsData := make([]*AccumulativeStatsProtocol, 0)
+		for protocolName := range item {
+			entriesCount := 0
+			volumeSizeBytes := 0
+			methods := make([]*AccumulativeStatsCounter, 0)
+			for _, methodAccData := range methodsPerProtocolPerTimeAggregated[timeKey][protocolName] {
+				entriesCount += methodAccData.EntriesCount
+				volumeSizeBytes += methodAccData.VolumeSizeBytes
+				methods = append(methods, methodAccData)
+			}
+			protocolsData = append(protocolsData, &AccumulativeStatsProtocol{
+				AccumulativeStatsCounter: AccumulativeStatsCounter{
+					Name:            protocolName,
+					EntriesCount:    entriesCount,
+					VolumeSizeBytes: volumeSizeBytes,
+				},
+				Color:   protocolToColor[protocolName],
+				Methods: methods,
+			})
+		}
+		finalResult = append(finalResult, &AccumulativeStatsProtocolTime{
+			Time:          timeKey.UnixMilli(),
+			ProtocolsData: protocolsData,
+		})
+	}
+	return finalResult
+}
+
+func convertAccumulativeStatsDictToArray(methodsPerProtocolAggregated map[string]map[string]*AccumulativeStatsCounter, protocolToColor map[string]string) []*AccumulativeStatsProtocol {
+	protocolsData := make([]*AccumulativeStatsProtocol, 0)
+	for protocolName, value := range methodsPerProtocolAggregated {
+		entriesCount := 0
+		volumeSizeBytes := 0
+		methods := make([]*AccumulativeStatsCounter, 0)
+		for _, methodAccData := range value {
+			entriesCount += methodAccData.EntriesCount
+			volumeSizeBytes += methodAccData.VolumeSizeBytes
+			methods = append(methods, methodAccData)
+		}
+		protocolsData = append(protocolsData, &AccumulativeStatsProtocol{
+			AccumulativeStatsCounter: AccumulativeStatsCounter{
+				Name:            protocolName,
+				EntriesCount:    entriesCount,
+				VolumeSizeBytes: volumeSizeBytes,
+			},
+			Color:   protocolToColor[protocolName],
+			Methods: methods,
+		})
+	}
+	return protocolsData
+}
+
+func getBucketStatsCopy() BucketStats {
+	bucketStatsCopy := BucketStats{}
+	bucketStatsLocker.Lock()
+	if err := copier.Copy(&bucketStatsCopy, bucketsStats); err != nil {
+		logger.Log.Errorf("Error while copying src stats into temporary copied object")
+		return nil
+	}
+	bucketStatsLocker.Unlock()
+	return bucketStatsCopy
+}
+
+func getAggregatedResultTimingFromSpecificTime(intervalSeconds int, bucketStats BucketStats, firstBucketTime time.Time) (map[time.Time]map[string]map[string]*AccumulativeStatsCounter, map[string]string) {
+	protocolToColor := map[string]string{}
+	methodsPerProtocolPerTimeAggregated := map[time.Time]map[string]map[string]*AccumulativeStatsCounter{}
+
+	bucketStatsIndex := len(bucketStats) - 1
+	for bucketStatsIndex >= 0 {
+		currentBucketTime := bucketStats[bucketStatsIndex].BucketTime
+		if currentBucketTime.After(firstBucketTime) || currentBucketTime.Equal(firstBucketTime) {
+			resultBucketRoundedKey := currentBucketTime.Add(-1 * time.Second * time.Duration(intervalSeconds) / 2).Round(time.Second * time.Duration(intervalSeconds))
+
+			for protocolName, data := range bucketStats[bucketStatsIndex].ProtocolStats {
+				if _, ok := protocolToColor[protocolName]; !ok {
+					protocolToColor[protocolName] = data.Color
+				}
+
+				for methodName, dataOfMethod := range data.MethodsStats {
+
+					if _, ok := methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey]; !ok {
+						methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey] = map[string]map[string]*AccumulativeStatsCounter{}
+					}
+					if _, ok := methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey][protocolName]; !ok {
+						methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey][protocolName] = map[string]*AccumulativeStatsCounter{}
+					}
+					if _, ok := methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey][protocolName][methodName]; !ok {
+						methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey][protocolName][methodName] = &AccumulativeStatsCounter{
+							Name:            methodName,
+							EntriesCount:    0,
+							VolumeSizeBytes: 0,
+						}
+					}
+					methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey][protocolName][methodName].EntriesCount += dataOfMethod.EntriesCount
+					methodsPerProtocolPerTimeAggregated[resultBucketRoundedKey][protocolName][methodName].VolumeSizeBytes += dataOfMethod.VolumeInBytes
+				}
+			}
+		}
+		bucketStatsIndex--
+	}
+	return methodsPerProtocolPerTimeAggregated, protocolToColor
+}
+
+func getAggregatedStatsAllTime(bucketStatsCopy BucketStats) (map[string]map[string]*AccumulativeStatsCounter, map[string]string) {
+	protocolToColor := make(map[string]string, 0)
+	methodsPerProtocolAggregated := make(map[string]map[string]*AccumulativeStatsCounter, 0)
+	for _, countersOfTimeFrame := range bucketStatsCopy {
+		for protocolName, value := range countersOfTimeFrame.ProtocolStats {
+			if _, ok := protocolToColor[protocolName]; !ok {
+				protocolToColor[protocolName] = value.Color
+			}
+
+			for method, countersValue := range value.MethodsStats {
+				if _, found := methodsPerProtocolAggregated[protocolName]; !found {
+					methodsPerProtocolAggregated[protocolName] = map[string]*AccumulativeStatsCounter{}
+				}
+				if _, found := methodsPerProtocolAggregated[protocolName][method]; !found {
+					methodsPerProtocolAggregated[protocolName][method] = &AccumulativeStatsCounter{
+						Name:            method,
+						EntriesCount:    0,
+						VolumeSizeBytes: 0,
+					}
+				}
+				methodsPerProtocolAggregated[protocolName][method].EntriesCount += countersValue.EntriesCount
+				methodsPerProtocolAggregated[protocolName][method].VolumeSizeBytes += countersValue.VolumeInBytes
+			}
+		}
+	}
+	return methodsPerProtocolAggregated, protocolToColor
+}

agent/pkg/providers/stats_provider_internal_test.go

@@ -0,0 +1,331 @@
+package providers
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestGetBucketOfTimeStamp(t *testing.T) {
+	tests := map[int64]time.Time{
+		time.Date(2022, time.Month(1), 1, 10, 34, 45, 0, time.Local).UnixMilli(): time.Date(2022, time.Month(1), 1, 10, 34, 00, 0, time.Local),
+		time.Date(2022, time.Month(1), 1, 10, 34, 00, 0, time.Local).UnixMilli(): time.Date(2022, time.Month(1), 1, 10, 34, 00, 0, time.Local),
+		time.Date(2022, time.Month(1), 1, 10, 59, 01, 0, time.Local).UnixMilli(): time.Date(2022, time.Month(1), 1, 10, 59, 00, 0, time.Local),
+	}
+
+	for key, value := range tests {
+		t.Run(fmt.Sprintf("%v", key), func(t *testing.T) {
+
+			actual := getBucketFromTimeStamp(key)
+
+			if actual != value {
+				t.Errorf("unexpected result - expected: %v, actual: %v", value, actual)
+			}
+		})
+	}
+}
+
+type DataForBucketBorderFunction struct {
+	EndTime           time.Time
+	IntervalInSeconds int
+	NumberOfBars      int
+}
+
+func TestGetBucketBorders(t *testing.T) {
+	tests := map[DataForBucketBorderFunction]time.Time{
+		DataForBucketBorderFunction{
+			time.Date(2022, time.Month(1), 1, 10, 34, 45, 0, time.UTC),
+			300,
+			10,
+		}: time.Date(2022, time.Month(1), 1, 9, 45, 0, 0, time.UTC),
+		DataForBucketBorderFunction{
+			time.Date(2022, time.Month(1), 1, 10, 35, 45, 0, time.UTC),
+			60,
+			5,
+		}: time.Date(2022, time.Month(1), 1, 10, 31, 00, 0, time.UTC),
+	}
+
+	for key, value := range tests {
+		t.Run(fmt.Sprintf("%v", key), func(t *testing.T) {
+
+			actual := getFirstBucketTime(key.EndTime, key.IntervalInSeconds, key.NumberOfBars)
+
+			if actual != value {
+				t.Errorf("unexpected result - expected: %v, actual: %v", value, actual)
+			}
+		})
+	}
+}
+
+func TestGetAggregatedStatsAllTime(t *testing.T) {
+	bucketStatsForTest := BucketStats{
+		&TimeFrameStatsValue{
+			BucketTime: time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC),
+			ProtocolStats: map[string]ProtocolStats{
+				"http": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"get": {
+							EntriesCount:  1,
+							VolumeInBytes: 2,
+						},
+						"post": {
+							EntriesCount:  2,
+							VolumeInBytes: 3,
+						},
+					},
+				},
+				"kafka": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"listTopics": {
+							EntriesCount:  5,
+							VolumeInBytes: 6,
+						},
+					},
+				},
+			},
+		},
+		&TimeFrameStatsValue{
+			BucketTime: time.Date(2022, time.Month(1), 1, 10, 01, 00, 0, time.UTC),
+			ProtocolStats: map[string]ProtocolStats{
+				"http": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"get": {
+							EntriesCount:  1,
+							VolumeInBytes: 2,
+						},
+						"post": {
+							EntriesCount:  2,
+							VolumeInBytes: 3,
+						},
+					},
+				},
+				"redis": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"set": {
+							EntriesCount:  5,
+							VolumeInBytes: 6,
+						},
+					},
+				},
+			},
+		},
+	}
+
+	expected := map[string]map[string]*AccumulativeStatsCounter{
+		"http": {
+			"post": {
+				Name:            "post",
+				EntriesCount:    4,
+				VolumeSizeBytes: 6,
+			},
+			"get": {
+				Name:            "get",
+				EntriesCount:    2,
+				VolumeSizeBytes: 4,
+			},
+		},
+		"kafka": {
+			"listTopics": {
+				Name:            "listTopics",
+				EntriesCount:    5,
+				VolumeSizeBytes: 6,
+			},
+		},
+		"redis": {
+			"set": {
+				Name:            "set",
+				EntriesCount:    5,
+				VolumeSizeBytes: 6,
+			},
+		},
+	}
+	actual, _ := getAggregatedStatsAllTime(bucketStatsForTest)
+
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("unexpected result - expected: %v, actual: %v", 3, len(actual))
+	}
+}
+
+func TestGetAggregatedStatsFromSpecificTime(t *testing.T) {
+	bucketStatsForTest := BucketStats{
+		&TimeFrameStatsValue{
+			BucketTime: time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC),
+			ProtocolStats: map[string]ProtocolStats{
+				"http": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"get": {
+							EntriesCount:  1,
+							VolumeInBytes: 2,
+						},
+					},
+				},
+				"kafka": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"listTopics": {
+							EntriesCount:  5,
+							VolumeInBytes: 6,
+						},
+					},
+				},
+			},
+		},
+		&TimeFrameStatsValue{
+			BucketTime: time.Date(2022, time.Month(1), 1, 10, 01, 00, 0, time.UTC),
+			ProtocolStats: map[string]ProtocolStats{
+				"http": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"get": {
+							EntriesCount:  1,
+							VolumeInBytes: 2,
+						},
+						"post": {
+							EntriesCount:  2,
+							VolumeInBytes: 3,
+						},
+					},
+				},
+				"redis": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"set": {
+							EntriesCount:  5,
+							VolumeInBytes: 6,
+						},
+					},
+				},
+			},
+		},
+	}
+
+	expected := map[time.Time]map[string]map[string]*AccumulativeStatsCounter{
+		time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC): {
+			"http": {
+				"post": {
+					Name:            "post",
+					EntriesCount:    2,
+					VolumeSizeBytes: 3,
+				},
+				"get": {
+					Name:            "get",
+					EntriesCount:    2,
+					VolumeSizeBytes: 4,
+				},
+			},
+			"kafka": {
+				"listTopics": {
+					Name:            "listTopics",
+					EntriesCount:    5,
+					VolumeSizeBytes: 6,
+				},
+			},
+			"redis": {
+				"set": {
+					Name:            "set",
+					EntriesCount:    5,
+					VolumeSizeBytes: 6,
+				},
+			},
+		},
+	}
+	actual, _ := getAggregatedResultTimingFromSpecificTime(300, bucketStatsForTest, time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC))
+
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("unexpected result - expected: %v, actual: %v", 3, len(actual))
+	}
+}
+
+func TestGetAggregatedStatsFromSpecificTimeMultipleBuckets(t *testing.T) {
+	bucketStatsForTest := BucketStats{
+		&TimeFrameStatsValue{
+			BucketTime: time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC),
+			ProtocolStats: map[string]ProtocolStats{
+				"http": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"get": {
+							EntriesCount:  1,
+							VolumeInBytes: 2,
+						},
+					},
+				},
+				"kafka": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"listTopics": {
+							EntriesCount:  5,
+							VolumeInBytes: 6,
+						},
+					},
+				},
+			},
+		},
+		&TimeFrameStatsValue{
+			BucketTime: time.Date(2022, time.Month(1), 1, 10, 01, 00, 0, time.UTC),
+			ProtocolStats: map[string]ProtocolStats{
+				"http": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"get": {
+							EntriesCount:  1,
+							VolumeInBytes: 2,
+						},
+						"post": {
+							EntriesCount:  2,
+							VolumeInBytes: 3,
+						},
+					},
+				},
+				"redis": {
+					MethodsStats: map[string]*SizeAndEntriesCount{
+						"set": {
+							EntriesCount:  5,
+							VolumeInBytes: 6,
+						},
+					},
+				},
+			},
+		},
+	}
+
+	expected := map[time.Time]map[string]map[string]*AccumulativeStatsCounter{
+		time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC): {
+			"http": {
+				"get": {
+					Name:            "get",
+					EntriesCount:    1,
+					VolumeSizeBytes: 2,
+				},
+			},
+			"kafka": {
+				"listTopics": {
+					Name:            "listTopics",
+					EntriesCount:    5,
+					VolumeSizeBytes: 6,
+				},
+			},
+		},
+		time.Date(2022, time.Month(1), 1, 10, 01, 00, 0, time.UTC): {
+			"http": {
+				"post": {
+					Name:            "post",
+					EntriesCount:    2,
+					VolumeSizeBytes: 3,
+				},
+				"get": {
+					Name:            "get",
+					EntriesCount:    1,
+					VolumeSizeBytes: 2,
+				},
+			},
+			"redis": {
+				"set": {
+					Name:            "set",
+					EntriesCount:    5,
+					VolumeSizeBytes: 6,
+				},
+			},
+		},
+	}
+	actual, _ := getAggregatedResultTimingFromSpecificTime(60, bucketStatsForTest, time.Date(2022, time.Month(1), 1, 10, 00, 00, 0, time.UTC))
+
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("unexpected result - expected: %v, actual: %v", 3, len(actual))
+	}
+}

agent/pkg/providers/stats_provider_test.go

@@ -3,8 +3,10 @@ package providers_test
 import (
 	"fmt"
 	"testing"
+	"time"
 
 	"github.com/up9inc/mizu/agent/pkg/providers"
+	"github.com/up9inc/mizu/tap/api"
 )
 
 func TestNoEntryAddedCount(t *testing.T) {
@@ -22,10 +24,13 @@ func TestNoEntryAddedCount(t *testing.T) {
 func TestEntryAddedCount(t *testing.T) {
 	tests := []int{1, 5, 10, 100, 500, 1000}
 
+	entryBucketKey := time.Date(2021, 1, 1, 10, 0, 0, 0, time.UTC)
+	valueLessThanBucketThreshold := time.Second * 130
+	mockSummery := &api.BaseEntry{Protocol: api.Protocol{Name: "mock"}, Method: "mock-method", Timestamp: entryBucketKey.Add(valueLessThanBucketThreshold).UnixNano()}
 	for _, entriesCount := range tests {
 		t.Run(fmt.Sprintf("%d", entriesCount), func(t *testing.T) {
 			for i := 0; i < entriesCount; i++ {
-				providers.EntryAdded(0)
+				providers.EntryAdded(0, mockSummery)
 			}
 
 			entriesStats := providers.GetGeneralStats()
@@ -38,7 +43,14 @@ func TestEntryAddedCount(t *testing.T) {
 				t.Errorf("unexpected result - expected: %v, actual: %v", 0, entriesStats.EntriesVolumeInGB)
 			}
 
-			t.Cleanup(providers.ResetGeneralStats)
+			t.Cleanup(func() {
+				providers.ResetGeneralStats()
+				generalStats := providers.GetGeneralStats()
+				if generalStats.EntriesCount != 0 {
+					t.Errorf("unexpected result - expected: %v, actual: %v", 0, generalStats.EntriesCount)
+				}
+
+			})
 		})
 	}
 }
@@ -49,12 +61,14 @@ func TestEntryAddedVolume(t *testing.T) {
 	var expectedEntriesCount int
 	var expectedVolumeInGB float64
 
+	mockSummery := &api.BaseEntry{Protocol: api.Protocol{Name: "mock"}, Method: "mock-method", Timestamp: time.Date(2021, 1, 1, 10, 0, 0, 0, time.UTC).UnixNano()}
+
 	for _, data := range tests {
 		t.Run(fmt.Sprintf("%d", len(data)), func(t *testing.T) {
 			expectedEntriesCount++
 			expectedVolumeInGB += float64(len(data)) / (1 << 30)
 
-			providers.EntryAdded(len(data))
+			providers.EntryAdded(len(data), mockSummery)
 
 			entriesStats := providers.GetGeneralStats()
 
@@ -67,5 +81,4 @@ func TestEntryAddedVolume(t *testing.T) {
 			}
 		})
 	}
-
 }

agent/pkg/providers/tappedPods/tapped_pods_provider.go

@@ -44,9 +44,10 @@ func Set(tappedPodsToSet []*shared.PodInfo) {
 
 func GetTappedPodsStatus() []shared.TappedPodStatus {
 	tappedPodsStatus := make([]shared.TappedPodStatus, 0)
+	tapperStatus := tappers.GetStatus()
 	for _, pod := range Get() {
 		var status string
-		if tapperStatus, ok := tappers.GetStatus()[pod.NodeName]; ok {
+		if tapperStatus, ok := tapperStatus[pod.NodeName]; ok {
 			status = strings.ToLower(tapperStatus.Status)
 		}
 

agent/pkg/resolver/go.sum

@@ -1,522 +0,0 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
-cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
-cloud.google.com/go v0.54.0 h1:3ithwDMr7/3vpAMXiH+ZQnYbuIsh+OPhUPMFC9enmn0=
-cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
-cloud.google.com/go/bigquery v1.4.0 h1:xE3CPsOgttP4ACBePh79zTKALtXwn/Edhcr16R5hMWU=
-cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/datastore v1.1.0 h1:/May9ojXjRkPBNVrq+oWLqmWCkr4OU5uRY29bu0mRyQ=
-cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
-cloud.google.com/go/pubsub v1.2.0 h1:Lpy6hKgdcl7a3WGSfJIFmxmcdjSpP6OmBEfcOv1Y680=
-cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
-cloud.google.com/go/storage v1.6.0 h1:UDpwYIwla4jHGzZJaEJYx1tOejbgSoNqsAfHAUYe2r8=
-cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9 h1:VpgP7xuJadIUuKccphEpTJnWhS2jkQyMt6Y7pJCD7fY=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/Azure/go-autorest v14.2.0+incompatible h1:V5VMDjClD3GiElqLWO7mz2MxNAK/vTfRHdAubSIPRgs=
-github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
-github.com/Azure/go-autorest/autorest v0.11.12 h1:gI8ytXbxMfI+IVbI9mP2JGCTXIuhHLgRlvQ9X4PsnHE=
-github.com/Azure/go-autorest/autorest v0.11.12/go.mod h1:eipySxLmqSyC5s5k1CLupqet0PSENBEDP93LQ9a8QYw=
-github.com/Azure/go-autorest/autorest/adal v0.9.5 h1:Y3bBUV4rTuxenJJs41HU3qmqsb+auo+a3Lz+PlJPpL0=
-github.com/Azure/go-autorest/autorest/adal v0.9.5/go.mod h1:B7KF7jKIeC9Mct5spmyCB/A8CG/sEz1vwIRGv/bbw7A=
-github.com/Azure/go-autorest/autorest/date v0.3.0 h1:7gUk1U5M/CQbp9WoqinNzJar+8KY+LPI6wiWrP/myHw=
-github.com/Azure/go-autorest/autorest/date v0.3.0/go.mod h1:BI0uouVdmngYNUzGWeSYnokU+TrmwEsOqdt8Y6sso74=
-github.com/Azure/go-autorest/autorest/mocks v0.4.1 h1:K0laFcLE6VLTOwNgSxaGbUcLPuGXlNkbVvq4cW4nIHk=
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-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
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-sigs.k8s.io/structured-merge-diff/v4 v4.1.0/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
-sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
-sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

agent/pkg/resolver/loader.go

@@ -15,9 +15,9 @@ func NewFromInCluster(errOut chan error, namespace string) (*Resolver, error) {
 	if err != nil {
 		return nil, err
 	}
-	clientset, err := kubernetes.NewForConfig(config)
+	clientSet, err := kubernetes.NewForConfig(config)
 	if err != nil {
 		return nil, err
 	}
-	return &Resolver{clientConfig: config, clientSet: clientset, nameMap: cmap.New(), serviceMap: cmap.New(), errOut: errOut, namespace: namespace}, nil
+	return &Resolver{clientConfig: config, clientSet: clientSet, nameMap: cmap.New(), serviceMap: cmap.New(), errOut: errOut, namespace: namespace}, nil
 }

agent/pkg/routes/status_routes.go

@@ -16,6 +16,8 @@ func StatusRoutes(ginApp *gin.Engine) {
 	routeGroup.GET("/tap", controllers.GetTappingStatus)
 
 	routeGroup.GET("/general", controllers.GetGeneralStats) // get general stats about entries in DB
+	routeGroup.GET("/accumulative", controllers.GetAccumulativeStats)
+	routeGroup.GET("/accumulativeTiming", controllers.GetAccumulativeStatsTiming)
 
 	routeGroup.GET("/resolving", controllers.GetCurrentResolvingInformation)
 }

agent/pkg/rules/rulesHTTP.go

@@ -56,7 +56,7 @@ func MatchRequestPolicy(harEntry har.Entry, service string) (resultPolicyToSend
 		}
 		if rule.Type == "json" {
 			var bodyJsonMap interface{}
-			contentTextDecoded, _ := base64.StdEncoding.DecodeString(string(harEntry.Response.Content.Text))
+			contentTextDecoded, _ := base64.StdEncoding.DecodeString(harEntry.Response.Content.Text)
 			if err := json.Unmarshal(contentTextDecoded, &bodyJsonMap); err != nil {
 				continue
 			}

agent/pkg/utils/pathUtils.go

@@ -1,8 +1,9 @@
 package utils
 
 import (
-	"github.com/djherbis/atime"
 	"os"
+
+	"github.com/djherbis/atime"
 )
 
 type ByModTime []os.FileInfo
@@ -19,7 +20,6 @@ func (fis ByModTime) Less(i, j int) bool {
 	return fis[i].ModTime().Before(fis[j].ModTime())
 }
 
-
 type ByName []os.FileInfo
 
 func (fis ByName) Len() int {
@@ -34,7 +34,6 @@ func (fis ByName) Less(i, j int) bool {
 	return fis[i].Name() < fis[j].Name()
 }
 
-
 type ByCreationTime []os.FileInfo
 
 func (fis ByCreationTime) Len() int {
@@ -47,4 +46,4 @@ func (fis ByCreationTime) Swap(i, j int) {
 
 func (fis ByCreationTime) Less(i, j int) bool {
 	return atime.Get(fis[i]).Unix() < atime.Get(fis[j]).Unix()
-}
+}

agent/pkg/utils/utils.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
-	"net/url"
 	"os"
 	"os/signal"
 	"syscall"
@@ -59,17 +58,6 @@ func CheckErr(e error) {
 	}
 }
 
-func SetHostname(address, newHostname string) string {
-	replacedUrl, err := url.Parse(address)
-	if err != nil {
-		logger.Log.Errorf("error replacing hostname to %s in address %s, returning original %v", newHostname, address, err)
-		return address
-	}
-	replacedUrl.Host = newHostname
-	return replacedUrl.String()
-
-}
-
 func ReadJsonFile(filePath string, value interface{}) error {
 	if content, err := ioutil.ReadFile(filePath); err != nil {
 		return err

cli/cmd/installRunner.go

@@ -25,7 +25,7 @@ func runMizuInstall() {
 	var sb strings.Builder
 	sb.WriteString("Hello! This command can be used to install Mizu Pro edition on your Kubernetes cluster.")
 	sb.WriteString("\nPlease run:")
-	sb.WriteString("\n\tmizu install -o | kubectl apply -f -")
+	sb.WriteString("\n\tmizu install -o | kubectl apply -n mizu -f -")
 	sb.WriteString("\n\nor use helm chart as described in https://getmizu.io/docs/installing-mizu/centralized-installation\n")
 
 	fmt.Print(sb.String())

cli/config/configStruct.go

@@ -39,7 +39,7 @@ type ConfigStruct struct {
 	HeadlessMode           bool                        `yaml:"headless" default:"false"`
 	LogLevelStr            string                      `yaml:"log-level,omitempty" default:"INFO" readonly:""`
 	ServiceMap             bool                        `yaml:"service-map" default:"true"`
-	OAS                    bool                        `yaml:"oas" default:"true"`
+	OAS                    shared.OASConfig            `yaml:"oas"`
 }
 
 func (config *ConfigStruct) validate() error {

cli/mizu/version/versionCheck.go

@@ -10,32 +10,13 @@ import (
 	"strings"
 	"time"
 
-	"github.com/up9inc/mizu/cli/apiserver"
 	"github.com/up9inc/mizu/cli/mizu"
 	"github.com/up9inc/mizu/cli/pkg/version"
 	"github.com/up9inc/mizu/logger"
 
 	"github.com/google/go-github/v37/github"
-	"github.com/up9inc/mizu/cli/uiUtils"
 )
 
-func CheckVersionCompatibility(apiServerProvider *apiserver.Provider) (bool, error) {
-	apiVer, err := apiServerProvider.GetVersion()
-	if err != nil {
-		return false, err
-	}
-
-	if equals, err := version.AreEquals(apiVer, mizu.Ver); err != nil {
-		return false, fmt.Errorf("Failed to check version equality between mizuVer: %s and apiVer: %s, error: %w", mizu.Ver, apiVer, err)
-	} else if !equals {
-		logger.Log.Errorf(uiUtils.Red, fmt.Sprintf("cli version (%s) is not compatible with api version (%s)", mizu.Ver, apiVer))
-		return false, nil
-	}
-
-	logger.Log.Debug("cli version %s is compatible with api version %s", mizu.Ver, apiVer)
-	return true, nil
-}
-
 func CheckNewerVersion(versionChan chan string) {
 	if _, present := os.LookupEnv(mizu.DEVENVVAR); present {
 		versionChan <- ""

cli/telemetry/telemetry.go

@@ -73,11 +73,7 @@ func shouldRunTelemetry() bool {
 		return false
 	}
 
-	if mizu.Branch != "main" && mizu.Branch != "develop" {
-		return false
-	}
-
-	return true
+	return mizu.Branch == "main" || mizu.Branch == "develop"
 }
 
 func sendTelemetry(argsMap map[string]interface{}) error {

devops/install-capstone.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+SUDO=''
+if (( $EUID != 0 )); then
+    SUDO='sudo'
+fi
+
+curl https://github.com/capstone-engine/capstone/archive/4.0.2.tar.gz -Lo ./capstone.tar.gz \
+ && tar -xzf capstone.tar.gz && mv ./capstone-* ./capstone \
+ && cd capstone \
+ && CAPSTONE_ARCHS="aarch64 x86" ./make.sh \
+ && $SUDO ./make.sh install

devops/linux-arm64-musl-go-libpcap-capstone-bpf/Dockerfile

@@ -17,4 +17,14 @@ RUN curl https://www.tcpdump.org/release/libpcap-1.10.1.tar.gz -Lo ./libpcap.tar
 WORKDIR /work/libpcap
 RUN ./configure --host=arm && make \
  && cp /work/libpcap/libpcap.a /usr/xcc/aarch64-linux-musl-cross/lib/gcc/aarch64-linux-musl/*/
+WORKDIR /work
 
+# Build and install Capstone from source
+RUN curl https://github.com/capstone-engine/capstone/archive/4.0.2.tar.gz -Lo ./capstone.tar.gz \
+ && tar -xzf capstone.tar.gz && mv ./capstone-* ./capstone
+WORKDIR /work/capstone
+RUN CAPSTONE_ARCHS="aarch64" CAPSTONE_STATIC=yes ./make.sh \
+&& cp /work/capstone/libcapstone.a /usr/xcc/aarch64-linux-musl-cross/lib/gcc/aarch64-linux-musl/*/
+
+# Install eBPF related dependencies
+RUN apt-get -y install clang llvm libbpf-dev

devops/linux-arm64-musl-go-libpcap-capstone-bpf/build-push.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+docker build . -t up9inc/linux-arm64-musl-go-libpcap-capstone-bpf && docker push up9inc/linux-arm64-musl-go-libpcap-capstone-bpf

devops/linux-arm64-musl-go-libpcap/build-push.sh

@@ -1,4 +0,0 @@
-#!/bin/bash
-set -e
-
-docker build . -t up9inc/linux-arm64-musl-go-libpcap && docker push up9inc/linux-arm64-musl-go-libpcap

devops/linux-x86_64-musl-go-libpcap-capstone-bpf/Dockerfile

@@ -1,5 +1,18 @@
 FROM messense/rust-musl-cross:x86_64-musl AS builder-from-arm64v8-to-amd64
 
+WORKDIR /
+
+# Install eBPF related dependencies
+RUN apt-get update
+RUN apt-get -y install clang llvm libelf-dev pkg-config
+
+# Build and install libbpf from source
+RUN curl https://github.com/libbpf/libbpf/archive/refs/tags/v0.8.0.tar.gz -Lo ./libbpf.tar.gz \
+ && tar -xzf libbpf.tar.gz && mv ./libbpf-* ./libbpf
+WORKDIR /libbpf/src
+RUN make && make install
+WORKDIR /
+
 ENV CROSS_TRIPLE x86_64-unknown-linux-musl
 ENV CROSS_ROOT /usr/local/musl
 
@@ -12,7 +25,6 @@ ENV AS=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-as \
     FC=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-gfortran
 
 # Install Go
-WORKDIR /
 RUN curl https://go.dev/dl/go1.17.6.linux-arm64.tar.gz -Lo ./go.linux-arm64.tar.gz \
  && curl https://go.dev/dl/go1.17.6.linux-arm64.tar.gz.asc -Lo ./go.linux-arm64.tar.gz.asc \
  && curl https://dl.google.com/dl/linux/linux_signing_key.pub  -Lo linux_signing_key.pub \
@@ -29,3 +41,11 @@ RUN curl https://www.tcpdump.org/release/libpcap-1.10.1.tar.gz -Lo ./libpcap.tar
 WORKDIR /libpcap
 RUN ./configure --host=x86_64 && make \
  && cp /libpcap/libpcap.a /usr/local/musl/lib/gcc/x86_64-unknown-linux-musl/*/
+WORKDIR /
+
+# Build and install Capstone from source
+RUN curl https://github.com/capstone-engine/capstone/archive/4.0.2.tar.gz -Lo ./capstone.tar.gz \
+ && tar -xzf capstone.tar.gz && mv ./capstone-* ./capstone
+WORKDIR /capstone
+RUN CAPSTONE_ARCHS="x86" CAPSTONE_STATIC=yes ./make.sh \
+ && cp /capstone/libcapstone.a /usr/local/musl/lib/gcc/x86_64-unknown-linux-musl/*/

devops/linux-x86_64-musl-go-libpcap-capstone-bpf/build-push.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+docker build . -t up9inc/linux-x86_64-musl-go-libpcap-capstone-bpf && docker push up9inc/linux-x86_64-musl-go-libpcap-capstone-bpf

devops/linux-x86_64-musl-go-libpcap/build-push.sh

@@ -1,4 +0,0 @@
-#!/bin/bash
-set -e
-
-docker build . -t up9inc/linux-x86_64-musl-go-libpcap && docker push up9inc/linux-x86_64-musl-go-libpcap

performance_analysis/plot_from_tapper_logs.py

@@ -57,7 +57,7 @@ def extract_samples(f: typing.IO) -> typing.Tuple[pd.Series, pd.Series, pd.Serie
         append_sample('"matchedPairs"', line, matched_samples)
         append_sample('"liveTcpStreams"', line, live_samples)
         append_sample('"processedBytes"', line, processed_samples)
-        append_sample('mem', line, heap_samples)
+        append_sample('heap-alloc', line, heap_samples)
         append_sample('goroutines', line, goroutines_samples)
 
     cpu_samples = pd.Series(cpu_samples)

shared/kubernetes/watchEvent.go

@@ -11,11 +11,11 @@ import (
 )
 
 const (
-	EventAdded    watch.EventType = watch.Added
-	EventModified watch.EventType = watch.Modified
-	EventDeleted  watch.EventType = watch.Deleted
-	EventBookmark watch.EventType = watch.Bookmark
-	EventError    watch.EventType = watch.Error
+	EventAdded    = watch.Added
+	EventModified = watch.Modified
+	EventDeleted  = watch.Deleted
+	EventBookmark = watch.Bookmark
+	EventError    = watch.Error
 )
 
 type InvalidObjectType struct {

shared/models.go

@@ -32,6 +32,11 @@ type Resources struct {
 	MemoryRequests string `yaml:"memory-requests" default:"50Mi"`
 }
 
+type OASConfig struct {
+	Enable        bool `yaml:"enabled" default:"true"`
+	MaxExampleLen int  `yaml:"max-example-len" default:"10240"`
+}
+
 type MizuAgentConfig struct {
 	MaxDBSizeBytes         int64         `json:"maxDBSizeBytes"`
 	InsertionFilter        string        `json:"insertionFilter"`
@@ -42,7 +47,7 @@ type MizuAgentConfig struct {
 	MizuResourcesNamespace string        `json:"mizuResourceNamespace"`
 	AgentDatabasePath      string        `json:"agentDatabasePath"`
 	ServiceMap             bool          `json:"serviceMap"`
-	OAS                    bool          `json:"oas"`
+	OAS                    OASConfig     `json:"oas"`
 	Telemetry              bool          `json:"telemetry"`
 }
 
@@ -194,7 +199,7 @@ func DecodeEnforcePolicy(path string) (RulesPolicy, error) {
 	if err != nil {
 		return enforcePolicy, err
 	}
-	err = yaml.Unmarshal([]byte(content), &enforcePolicy)
+	err = yaml.Unmarshal(content, &enforcePolicy)
 	if err != nil {
 		return enforcePolicy, err
 	}

tap/api/api.go

@@ -20,9 +20,9 @@ import (
 )
 
 const mizuTestEnvVar = "MIZU_TEST"
-const UNKNOWN_NAMESPACE = ""
+const UnknownNamespace = ""
 
-var UnknownIp net.IP = net.IP{0, 0, 0, 0}
+var UnknownIp = net.IP{0, 0, 0, 0}
 var UnknownPort uint16 = 0
 
 type Protocol struct {

tap/api/stats_tracker.go

@@ -16,6 +16,8 @@ type AppStats struct {
 	MatchedPairs                uint64    `json:"matchedPairs"`
 	DroppedTcpStreams           uint64    `json:"droppedTcpStreams"`
 	LiveTcpStreams              uint64    `json:"liveTcpStreams"`
+	IgnoredLastAckCount         uint64    `json:"ignoredLastAckCount"`
+	ThrottledPackets            uint64    `json:"throttledPackets"`
 }
 
 func (as *AppStats) IncMatchedPairs() {
@@ -39,6 +41,14 @@ func (as *AppStats) IncIgnoredPacketsCount() {
 	atomic.AddUint64(&as.IgnoredPacketsCount, 1)
 }
 
+func (as *AppStats) IncIgnoredLastAckCount() {
+	atomic.AddUint64(&as.IgnoredLastAckCount, 1)
+}
+
+func (as *AppStats) IncThrottledPackets() {
+	atomic.AddUint64(&as.ThrottledPackets, 1)
+}
+
 func (as *AppStats) IncReassembledTcpPayloadsCount() {
 	atomic.AddUint64(&as.ReassembledTcpPayloadsCount, 1)
 }
@@ -74,6 +84,8 @@ func (as *AppStats) DumpStats() *AppStats {
 	currentAppStats.TlsConnectionsCount = resetUint64(&as.TlsConnectionsCount)
 	currentAppStats.MatchedPairs = resetUint64(&as.MatchedPairs)
 	currentAppStats.DroppedTcpStreams = resetUint64(&as.DroppedTcpStreams)
+	currentAppStats.IgnoredLastAckCount = resetUint64(&as.IgnoredLastAckCount)
+	currentAppStats.ThrottledPackets = resetUint64(&as.ThrottledPackets)
 	currentAppStats.LiveTcpStreams = as.LiveTcpStreams
 
 	return currentAppStats

tap/cleaner.go

@@ -10,14 +10,11 @@ import (
 )
 
 type CleanerStats struct {
-	flushed int
-	closed  int
 	deleted int
 }
 
 type Cleaner struct {
 	assembler         *reassembly.Assembler
-	assemblerMutex    *sync.Mutex
 	cleanPeriod       time.Duration
 	connectionTimeout time.Duration
 	stats             CleanerStats
@@ -28,11 +25,6 @@ type Cleaner struct {
 func (cl *Cleaner) clean() {
 	startCleanTime := time.Now()
 
-	cl.assemblerMutex.Lock()
-	logger.Log.Debugf("Assembler Stats before cleaning %s", cl.assembler.Dump())
-	flushed, closed := cl.assembler.FlushCloseOlderThan(startCleanTime.Add(-cl.connectionTimeout))
-	cl.assemblerMutex.Unlock()
-
 	cl.streamsMap.Range(func(k, v interface{}) bool {
 		reqResMatchers := v.(api.TcpStream).GetReqResMatchers()
 		for _, reqResMatcher := range reqResMatchers {
@@ -47,8 +39,6 @@ func (cl *Cleaner) clean() {
 
 	cl.statsMutex.Lock()
 	logger.Log.Debugf("Assembler Stats after cleaning %s", cl.assembler.Dump())
-	cl.stats.flushed += flushed
-	cl.stats.closed += closed
 	cl.statsMutex.Unlock()
 }
 
@@ -67,17 +57,12 @@ func (cl *Cleaner) dumpStats() CleanerStats {
 	cl.statsMutex.Lock()
 
 	stats := CleanerStats{
-		flushed: cl.stats.flushed,
-		closed:  cl.stats.closed,
 		deleted: cl.stats.deleted,
 	}
 
-	cl.stats.flushed = 0
-	cl.stats.closed = 0
 	cl.stats.deleted = 0
 
 	cl.statsMutex.Unlock()
-
 	return stats
 }
 

tap/dbgctl/debug_control.go

@@ -5,11 +5,11 @@ import (
 )
 
 var (
-	MizuTapperDisablePcap              bool = os.Getenv("MIZU_DEBUG_DISABLE_PCAP") == "true"
-	MizuTapperDisableTcpReassembly     bool = os.Getenv("MIZU_DEBUG_DISABLE_TCP_REASSEMBLY") == "true"
-	MizuTapperDisableTcpStream         bool = os.Getenv("MIZU_DEBUG_DISABLE_TCP_STREAM") == "true"
-	MizuTapperDisableDissectors        bool = os.Getenv("MIZU_DEBUG_DISABLE_DISSECTORS") == "true"
-	MizuTapperDisableEmitting          bool = os.Getenv("MIZU_DEBUG_DISABLE_EMITTING") == "true"
-	MizuTapperDisableSending           bool = os.Getenv("MIZU_DEBUG_DISABLE_SENDING") == "true"
-	MizuTapperDisableNonHttpExtensions bool = os.Getenv("MIZU_DEBUG_DISABLE_NON_HTTP_EXTENSSION") == "true"
+	MizuTapperDisablePcap              = os.Getenv("MIZU_DEBUG_DISABLE_PCAP") == "true"
+	MizuTapperDisableTcpReassembly     = os.Getenv("MIZU_DEBUG_DISABLE_TCP_REASSEMBLY") == "true"
+	MizuTapperDisableTcpStream         = os.Getenv("MIZU_DEBUG_DISABLE_TCP_STREAM") == "true"
+	MizuTapperDisableDissectors        = os.Getenv("MIZU_DEBUG_DISABLE_DISSECTORS") == "true"
+	MizuTapperDisableEmitting          = os.Getenv("MIZU_DEBUG_DISABLE_EMITTING") == "true"
+	MizuTapperDisableSending           = os.Getenv("MIZU_DEBUG_DISABLE_SENDING") == "true"
+	MizuTapperDisableNonHttpExtensions = os.Getenv("MIZU_DEBUG_DISABLE_NON_HTTP_EXTENSSION") == "true"
 )

tap/extensions/amqp/main.go

@@ -12,7 +12,7 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-var protocol api.Protocol = api.Protocol{
+var protocol = api.Protocol{
 	Name:            "amqp",
 	LongName:        "Advanced Message Queuing Protocol 0-9-1",
 	Abbreviation:    "AMQP",
@@ -74,13 +74,13 @@ func (d dissecting) Dissect(b *bufio.Reader, reader api.TcpReader, options *api.
 	var lastMethodFrameMessage Message
 
 	for {
-		frame, err := r.ReadFrame()
+		frameVal, err := r.readFrame()
 		if err == io.EOF {
 			// We must read until we see an EOF... very important!
 			return err
 		}
 
-		switch f := frame.(type) {
+		switch f := frameVal.(type) {
 		case *HeartbeatFrame:
 			// drop
 
@@ -203,7 +203,7 @@ func (d dissecting) Dissect(b *bufio.Reader, reader api.TcpReader, options *api.
 			}
 
 		default:
-			// log.Printf("unexpected frame: %+v", f)
+			// log.Printf("unexpected frameVal: %+v", f)
 		}
 	}
 }

tap/extensions/amqp/read.go

@@ -43,14 +43,14 @@ In realistic implementations where performance is a concern, we would use
 
 “gathering reads” to avoid doing three separate system calls to read a frame.
 */
-func (r *AmqpReader) ReadFrame() (frame frame, err error) {
+func (r *AmqpReader) readFrame() (frame frame, err error) {
 	var scratch [7]byte
 
 	if _, err = io.ReadFull(r.R, scratch[:7]); err != nil {
 		return
 	}
 
-	typ := uint8(scratch[0])
+	typ := scratch[0]
 	channel := binary.BigEndian.Uint16(scratch[1:3])
 	size := binary.BigEndian.Uint32(scratch[3:7])
 
@@ -94,20 +94,20 @@ func (r *AmqpReader) ReadFrame() (frame frame, err error) {
 	return
 }
 
-func readShortstr(r io.Reader) (v string, err error) {
+func readShortStr(r io.Reader) (v string, err error) {
 	var length uint8
 	if err = binary.Read(r, binary.BigEndian, &length); err != nil {
 		return
 	}
 
-	bytes := make([]byte, length)
-	if _, err = io.ReadFull(r, bytes); err != nil {
+	bytesValue := make([]byte, length)
+	if _, err = io.ReadFull(r, bytesValue); err != nil {
 		return
 	}
-	return string(bytes), nil
+	return string(bytesValue), nil
 }
 
-func readLongstr(r io.Reader) (v string, err error) {
+func readLongStr(r io.Reader) (v string, err error) {
 	var length uint32
 	if err = binary.Read(r, binary.BigEndian, &length); err != nil {
 		return
@@ -118,11 +118,11 @@ func readLongstr(r io.Reader) (v string, err error) {
 		return
 	}
 
-	bytes := make([]byte, length)
-	if _, err = io.ReadFull(r, bytes); err != nil {
+	bytesValue := make([]byte, length)
+	if _, err = io.ReadFull(r, bytesValue); err != nil {
 		return
 	}
-	return string(bytes), nil
+	return string(bytesValue), nil
 }
 
 func readDecimal(r io.Reader) (v Decimal, err error) {
@@ -171,7 +171,7 @@ func readField(r io.Reader) (v interface{}, err error) {
 		if err = binary.Read(r, binary.BigEndian, &value); err != nil {
 			return
 		}
-		return (value != 0), nil
+		return value != 0, nil
 
 	case 'b':
 		var value [1]byte
@@ -219,7 +219,7 @@ func readField(r io.Reader) (v interface{}, err error) {
 		return readDecimal(r)
 
 	case 'S':
-		return readLongstr(r)
+		return readLongStr(r)
 
 	case 'A':
 		return readArray(r)
@@ -231,12 +231,12 @@ func readField(r io.Reader) (v interface{}, err error) {
 		return readTable(r)
 
 	case 'x':
-		var len int32
-		if err = binary.Read(r, binary.BigEndian, &len); err != nil {
+		var lenVal int32
+		if err = binary.Read(r, binary.BigEndian, &lenVal); err != nil {
 			return nil, err
 		}
 
-		value := make([]byte, len)
+		value := make([]byte, lenVal)
 		if _, err = io.ReadFull(r, value); err != nil {
 			return nil, err
 		}
@@ -261,7 +261,7 @@ func readTable(r io.Reader) (table Table, err error) {
 	var nested bytes.Buffer
 	var str string
 
-	if str, err = readLongstr(r); err != nil {
+	if str, err = readLongStr(r); err != nil {
 		return
 	}
 
@@ -273,7 +273,7 @@ func readTable(r io.Reader) (table Table, err error) {
 		var key string
 		var value interface{}
 
-		if key, err = readShortstr(&nested); err != nil {
+		if key, err = readShortStr(&nested); err != nil {
 			return
 		}
 
@@ -349,12 +349,12 @@ func (r *AmqpReader) parseHeaderFrame(channel uint16, size uint32) (frame frame,
 	}
 
 	if hasProperty(flags, flagContentType) {
-		if hf.Properties.ContentType, err = readShortstr(r.R); err != nil {
+		if hf.Properties.ContentType, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagContentEncoding) {
-		if hf.Properties.ContentEncoding, err = readShortstr(r.R); err != nil {
+		if hf.Properties.ContentEncoding, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
@@ -374,22 +374,22 @@ func (r *AmqpReader) parseHeaderFrame(channel uint16, size uint32) (frame frame,
 		}
 	}
 	if hasProperty(flags, flagCorrelationId) {
-		if hf.Properties.CorrelationId, err = readShortstr(r.R); err != nil {
+		if hf.Properties.CorrelationId, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagReplyTo) {
-		if hf.Properties.ReplyTo, err = readShortstr(r.R); err != nil {
+		if hf.Properties.ReplyTo, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagExpiration) {
-		if hf.Properties.Expiration, err = readShortstr(r.R); err != nil {
+		if hf.Properties.Expiration, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagMessageId) {
-		if hf.Properties.MessageId, err = readShortstr(r.R); err != nil {
+		if hf.Properties.MessageId, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
@@ -399,22 +399,22 @@ func (r *AmqpReader) parseHeaderFrame(channel uint16, size uint32) (frame frame,
 		}
 	}
 	if hasProperty(flags, flagType) {
-		if hf.Properties.Type, err = readShortstr(r.R); err != nil {
+		if hf.Properties.Type, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagUserId) {
-		if hf.Properties.UserId, err = readShortstr(r.R); err != nil {
+		if hf.Properties.UserId, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagAppId) {
-		if hf.Properties.AppId, err = readShortstr(r.R); err != nil {
+		if hf.Properties.AppId, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
 	if hasProperty(flags, flagReserved1) {
-		if hf.Properties.reserved1, err = readShortstr(r.R); err != nil {
+		if hf.Properties.reserved1, err = readShortStr(r.R); err != nil {
 			return
 		}
 	}
@@ -436,7 +436,7 @@ func (r *AmqpReader) parseBodyFrame(channel uint16, size uint32) (frame frame, e
 	return bf, nil
 }
 
-var errHeartbeatPayload = errors.New("Heartbeats should not have a payload")
+var errHeartbeatPayload = errors.New("heartbeats should not have a payload")
 
 func (r *AmqpReader) parseHeartbeatFrame(channel uint16, size uint32) (frame frame, err error) {
 	hf := &HeartbeatFrame{

tap/extensions/amqp/spec091.go

@@ -70,10 +70,10 @@ func (msg *ConnectionStart) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Mechanisms, err = readLongstr(r); err != nil {
+	if msg.Mechanisms, err = readLongStr(r); err != nil {
 		return
 	}
-	if msg.Locales, err = readLongstr(r); err != nil {
+	if msg.Locales, err = readLongStr(r); err != nil {
 		return
 	}
 
@@ -93,15 +93,15 @@ func (msg *ConnectionStartOk) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Mechanism, err = readShortstr(r); err != nil {
+	if msg.Mechanism, err = readShortStr(r); err != nil {
 		return
 	}
 
-	if msg.Response, err = readLongstr(r); err != nil {
+	if msg.Response, err = readLongStr(r); err != nil {
 		return
 	}
 
-	if msg.Locale, err = readShortstr(r); err != nil {
+	if msg.Locale, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -114,7 +114,7 @@ type connectionSecure struct {
 
 func (msg *connectionSecure) read(r io.Reader) (err error) {
 
-	if msg.Challenge, err = readLongstr(r); err != nil {
+	if msg.Challenge, err = readLongStr(r); err != nil {
 		return
 	}
 
@@ -127,7 +127,7 @@ type connectionSecureOk struct {
 
 func (msg *connectionSecureOk) read(r io.Reader) (err error) {
 
-	if msg.Response, err = readLongstr(r); err != nil {
+	if msg.Response, err = readLongStr(r); err != nil {
 		return
 	}
 
@@ -189,17 +189,17 @@ type connectionOpen struct {
 func (msg *connectionOpen) read(r io.Reader) (err error) {
 	var bits byte
 
-	if msg.VirtualHost, err = readShortstr(r); err != nil {
+	if msg.VirtualHost, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.reserved1, err = readShortstr(r); err != nil {
+	if msg.reserved1, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.reserved2 = (bits&(1<<0) > 0)
+	msg.reserved2 = bits&(1<<0) > 0
 
 	return
 }
@@ -210,7 +210,7 @@ type connectionOpenOk struct {
 
 func (msg *connectionOpenOk) read(r io.Reader) (err error) {
 
-	if msg.reserved1, err = readShortstr(r); err != nil {
+	if msg.reserved1, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -230,7 +230,7 @@ func (msg *ConnectionClose) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.ReplyText, err = readShortstr(r); err != nil {
+	if msg.ReplyText, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -258,7 +258,7 @@ type connectionBlocked struct {
 
 func (msg *connectionBlocked) read(r io.Reader) (err error) {
 
-	if msg.Reason, err = readShortstr(r); err != nil {
+	if msg.Reason, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -279,7 +279,7 @@ type channelOpen struct {
 
 func (msg *channelOpen) read(r io.Reader) (err error) {
 
-	if msg.reserved1, err = readShortstr(r); err != nil {
+	if msg.reserved1, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -292,7 +292,7 @@ type channelOpenOk struct {
 
 func (msg *channelOpenOk) read(r io.Reader) (err error) {
 
-	if msg.reserved1, err = readLongstr(r); err != nil {
+	if msg.reserved1, err = readLongStr(r); err != nil {
 		return
 	}
 
@@ -309,7 +309,7 @@ func (msg *channelFlow) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Active = (bits&(1<<0) > 0)
+	msg.Active = bits&(1<<0) > 0
 
 	return
 }
@@ -324,7 +324,7 @@ func (msg *channelFlowOk) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Active = (bits&(1<<0) > 0)
+	msg.Active = bits&(1<<0) > 0
 
 	return
 }
@@ -342,7 +342,7 @@ func (msg *channelClose) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.ReplyText, err = readShortstr(r); err != nil {
+	if msg.ReplyText, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -383,21 +383,21 @@ func (msg *ExchangeDeclare) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.Type, err = readShortstr(r); err != nil {
+	if msg.Type, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Passive = (bits&(1<<0) > 0)
-	msg.Durable = (bits&(1<<1) > 0)
-	msg.AutoDelete = (bits&(1<<2) > 0)
-	msg.Internal = (bits&(1<<3) > 0)
-	msg.NoWait = (bits&(1<<4) > 0)
+	msg.Passive = bits&(1<<0) > 0
+	msg.Durable = bits&(1<<1) > 0
+	msg.AutoDelete = bits&(1<<2) > 0
+	msg.Internal = bits&(1<<3) > 0
+	msg.NoWait = bits&(1<<4) > 0
 
 	if msg.Arguments, err = readTable(r); err != nil {
 		return
@@ -428,15 +428,15 @@ func (msg *exchangeDelete) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.IfUnused = (bits&(1<<0) > 0)
-	msg.NoWait = (bits&(1<<1) > 0)
+	msg.IfUnused = bits&(1<<0) > 0
+	msg.NoWait = bits&(1<<1) > 0
 
 	return
 }
@@ -465,20 +465,20 @@ func (msg *exchangeBind) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Destination, err = readShortstr(r); err != nil {
+	if msg.Destination, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.Source, err = readShortstr(r); err != nil {
+	if msg.Source, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoWait = (bits&(1<<0) > 0)
+	msg.NoWait = bits&(1<<0) > 0
 
 	if msg.Arguments, err = readTable(r); err != nil {
 		return
@@ -511,20 +511,20 @@ func (msg *exchangeUnbind) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Destination, err = readShortstr(r); err != nil {
+	if msg.Destination, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.Source, err = readShortstr(r); err != nil {
+	if msg.Source, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoWait = (bits&(1<<0) > 0)
+	msg.NoWait = bits&(1<<0) > 0
 
 	if msg.Arguments, err = readTable(r); err != nil {
 		return
@@ -559,18 +559,18 @@ func (msg *QueueDeclare) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Passive = (bits&(1<<0) > 0)
-	msg.Durable = (bits&(1<<1) > 0)
-	msg.Exclusive = (bits&(1<<2) > 0)
-	msg.AutoDelete = (bits&(1<<3) > 0)
-	msg.NoWait = (bits&(1<<4) > 0)
+	msg.Passive = bits&(1<<0) > 0
+	msg.Durable = bits&(1<<1) > 0
+	msg.Exclusive = bits&(1<<2) > 0
+	msg.AutoDelete = bits&(1<<3) > 0
+	msg.NoWait = bits&(1<<4) > 0
 
 	if msg.Arguments, err = readTable(r); err != nil {
 		return
@@ -587,7 +587,7 @@ type QueueDeclareOk struct {
 
 func (msg *QueueDeclareOk) read(r io.Reader) (err error) {
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -617,20 +617,20 @@ func (msg *QueueBind) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoWait = (bits&(1<<0) > 0)
+	msg.NoWait = bits&(1<<0) > 0
 
 	if msg.Arguments, err = readTable(r); err != nil {
 		return
@@ -661,13 +661,13 @@ func (msg *queueUnbind) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -699,14 +699,14 @@ func (msg *queuePurge) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoWait = (bits&(1<<0) > 0)
+	msg.NoWait = bits&(1<<0) > 0
 
 	return
 }
@@ -739,16 +739,16 @@ func (msg *queueDelete) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.IfUnused = (bits&(1<<0) > 0)
-	msg.IfEmpty = (bits&(1<<1) > 0)
-	msg.NoWait = (bits&(1<<2) > 0)
+	msg.IfUnused = bits&(1<<0) > 0
+	msg.IfEmpty = bits&(1<<1) > 0
+	msg.NoWait = bits&(1<<2) > 0
 
 	return
 }
@@ -786,7 +786,7 @@ func (msg *basicQos) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Global = (bits&(1<<0) > 0)
+	msg.Global = bits&(1<<0) > 0
 
 	return
 }
@@ -817,20 +817,20 @@ func (msg *BasicConsume) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.ConsumerTag, err = readShortstr(r); err != nil {
+	if msg.ConsumerTag, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoLocal = (bits&(1<<0) > 0)
-	msg.NoAck = (bits&(1<<1) > 0)
-	msg.Exclusive = (bits&(1<<2) > 0)
-	msg.NoWait = (bits&(1<<3) > 0)
+	msg.NoLocal = bits&(1<<0) > 0
+	msg.NoAck = bits&(1<<1) > 0
+	msg.Exclusive = bits&(1<<2) > 0
+	msg.NoWait = bits&(1<<3) > 0
 
 	if msg.Arguments, err = readTable(r); err != nil {
 		return
@@ -845,7 +845,7 @@ type BasicConsumeOk struct {
 
 func (msg *BasicConsumeOk) read(r io.Reader) (err error) {
 
-	if msg.ConsumerTag, err = readShortstr(r); err != nil {
+	if msg.ConsumerTag, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -860,14 +860,14 @@ type basicCancel struct {
 func (msg *basicCancel) read(r io.Reader) (err error) {
 	var bits byte
 
-	if msg.ConsumerTag, err = readShortstr(r); err != nil {
+	if msg.ConsumerTag, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoWait = (bits&(1<<0) > 0)
+	msg.NoWait = bits&(1<<0) > 0
 
 	return
 }
@@ -878,7 +878,7 @@ type basicCancelOk struct {
 
 func (msg *basicCancelOk) read(r io.Reader) (err error) {
 
-	if msg.ConsumerTag, err = readShortstr(r); err != nil {
+	if msg.ConsumerTag, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -910,18 +910,18 @@ func (msg *BasicPublish) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Mandatory = (bits&(1<<0) > 0)
-	msg.Immediate = (bits&(1<<1) > 0)
+	msg.Mandatory = bits&(1<<0) > 0
+	msg.Immediate = bits&(1<<1) > 0
 
 	return
 }
@@ -949,13 +949,13 @@ func (msg *basicReturn) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.ReplyText, err = readShortstr(r); err != nil {
+	if msg.ReplyText, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -983,7 +983,7 @@ func (msg *BasicDeliver) setContent(props Properties, body []byte) {
 func (msg *BasicDeliver) read(r io.Reader) (err error) {
 	var bits byte
 
-	if msg.ConsumerTag, err = readShortstr(r); err != nil {
+	if msg.ConsumerTag, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -994,12 +994,12 @@ func (msg *BasicDeliver) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Redelivered = (bits&(1<<0) > 0)
+	msg.Redelivered = bits&(1<<0) > 0
 
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -1019,14 +1019,14 @@ func (msg *basicGet) read(r io.Reader) (err error) {
 		return
 	}
 
-	if msg.Queue, err = readShortstr(r); err != nil {
+	if msg.Queue, err = readShortStr(r); err != nil {
 		return
 	}
 
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.NoAck = (bits&(1<<0) > 0)
+	msg.NoAck = bits&(1<<0) > 0
 
 	return
 }
@@ -1059,12 +1059,12 @@ func (msg *basicGetOk) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Redelivered = (bits&(1<<0) > 0)
+	msg.Redelivered = bits&(1<<0) > 0
 
-	if msg.Exchange, err = readShortstr(r); err != nil {
+	if msg.Exchange, err = readShortStr(r); err != nil {
 		return
 	}
-	if msg.RoutingKey, err = readShortstr(r); err != nil {
+	if msg.RoutingKey, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -1081,7 +1081,7 @@ type basicGetEmpty struct {
 
 func (msg *basicGetEmpty) read(r io.Reader) (err error) {
 
-	if msg.reserved1, err = readShortstr(r); err != nil {
+	if msg.reserved1, err = readShortStr(r); err != nil {
 		return
 	}
 
@@ -1103,7 +1103,7 @@ func (msg *basicAck) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Multiple = (bits&(1<<0) > 0)
+	msg.Multiple = bits&(1<<0) > 0
 
 	return
 }
@@ -1123,7 +1123,7 @@ func (msg *basicReject) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Requeue = (bits&(1<<0) > 0)
+	msg.Requeue = bits&(1<<0) > 0
 
 	return
 }
@@ -1138,7 +1138,7 @@ func (msg *basicRecoverAsync) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Requeue = (bits&(1<<0) > 0)
+	msg.Requeue = bits&(1<<0) > 0
 
 	return
 }
@@ -1153,7 +1153,7 @@ func (msg *basicRecover) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Requeue = (bits&(1<<0) > 0)
+	msg.Requeue = bits&(1<<0) > 0
 
 	return
 }
@@ -1182,8 +1182,8 @@ func (msg *basicNack) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Multiple = (bits&(1<<0) > 0)
-	msg.Requeue = (bits&(1<<1) > 0)
+	msg.Multiple = bits&(1<<0) > 0
+	msg.Requeue = bits&(1<<1) > 0
 
 	return
 }
@@ -1246,7 +1246,7 @@ func (msg *confirmSelect) read(r io.Reader) (err error) {
 	if err = binary.Read(r, binary.BigEndian, &bits); err != nil {
 		return
 	}
-	msg.Nowait = (bits&(1<<0) > 0)
+	msg.Nowait = bits&(1<<0) > 0
 
 	return
 }

tap/extensions/http/http2_assembler.go

@@ -91,7 +91,7 @@ func (ga *Http2Assembler) readMessage() (streamID uint32, messageHTTP1 interface
 	// Exactly one Framer is used for each half connection.
 	// (Instead of creating a new Framer for each ReadFrame operation)
 	// This is needed in order to decompress the headers,
-	// because the compression context is updated with each requests/response.
+	// because the compression context is updated with each request/response.
 	frame, err := ga.framer.ReadFrame()
 	if err != nil {
 		return

tap/extensions/http/main.go

@@ -14,7 +14,7 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-var http10protocol api.Protocol = api.Protocol{
+var http10protocol = api.Protocol{
 	Name:            "http",
 	LongName:        "Hypertext Transfer Protocol -- HTTP/1.0",
 	Abbreviation:    "HTTP",
@@ -28,7 +28,7 @@ var http10protocol api.Protocol = api.Protocol{
 	Priority:        0,
 }
 
-var http11protocol api.Protocol = api.Protocol{
+var http11protocol = api.Protocol{
 	Name:            "http",
 	LongName:        "Hypertext Transfer Protocol -- HTTP/1.1",
 	Abbreviation:    "HTTP",
@@ -42,7 +42,7 @@ var http11protocol api.Protocol = api.Protocol{
 	Priority:        0,
 }
 
-var http2Protocol api.Protocol = api.Protocol{
+var http2Protocol = api.Protocol{
 	Name:            "http",
 	LongName:        "Hypertext Transfer Protocol Version 2 (HTTP/2)",
 	Abbreviation:    "HTTP/2",
@@ -56,7 +56,7 @@ var http2Protocol api.Protocol = api.Protocol{
 	Priority:        0,
 }
 
-var grpcProtocol api.Protocol = api.Protocol{
+var grpcProtocol = api.Protocol{
 	Name:            "http",
 	LongName:        "Hypertext Transfer Protocol Version 2 (HTTP/2) [ gRPC over HTTP/2 ]",
 	Abbreviation:    "gRPC",
@@ -70,7 +70,7 @@ var grpcProtocol api.Protocol = api.Protocol{
 	Priority:        0,
 }
 
-var graphQL1Protocol api.Protocol = api.Protocol{
+var graphQL1Protocol = api.Protocol{
 	Name:            "http",
 	LongName:        "Hypertext Transfer Protocol -- HTTP/1.1 [ GraphQL over HTTP/1.1 ]",
 	Abbreviation:    "GQL",
@@ -84,7 +84,7 @@ var graphQL1Protocol api.Protocol = api.Protocol{
 	Priority:        0,
 }
 
-var graphQL2Protocol api.Protocol = api.Protocol{
+var graphQL2Protocol = api.Protocol{
 	Name:            "http",
 	LongName:        "Hypertext Transfer Protocol Version 2 (HTTP/2) [ GraphQL over HTTP/2 ]",
 	Abbreviation:    "GQL",

tap/extensions/http/sensitive_data_cleaner.go

@@ -66,7 +66,7 @@ func filterRequestBody(request *http.Request, options *api.TrafficFilteringOptio
 	if err != nil {
 		return
 	}
-	filteredBody, err := filterHttpBody([]byte(body), contenType, options)
+	filteredBody, err := filterHttpBody(body, contenType, options)
 	if err == nil {
 		request.Body = ioutil.NopCloser(bytes.NewBuffer(filteredBody))
 	} else {
@@ -80,7 +80,7 @@ func filterResponseBody(response *http.Response, options *api.TrafficFilteringOp
 	if err != nil {
 		return
 	}
-	filteredBody, err := filterHttpBody([]byte(body), contentType, options)
+	filteredBody, err := filterHttpBody(body, contentType, options)
 	if err == nil {
 		response.Body = ioutil.NopCloser(bytes.NewBuffer(filteredBody))
 	} else {

tap/extensions/kafka/helpers.go

@@ -817,12 +817,12 @@ func representDeleteTopicsRequest(data map[string]interface{}) []interface{} {
 	repPayload, _ := json.Marshal([]api.TableData{
 		{
 			Name:     "TopicNames",
-			Value:    string(topicNames),
+			Value:    topicNames,
 			Selector: `request.payload.topicNames`,
 		},
 		{
 			Name:     "Topics",
-			Value:    string(topics),
+			Value:    topics,
 			Selector: `request.payload.topics`,
 		},
 		{

tap/extensions/kafka/main.go

@@ -10,7 +10,7 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-var _protocol api.Protocol = api.Protocol{
+var _protocol = api.Protocol{
 	Name:            "kafka",
 	LongName:        "Apache Kafka Protocol",
 	Abbreviation:    "KAFKA",

tap/extensions/kafka/reflect.go

@@ -56,6 +56,6 @@ func makeArray(t reflect.Type, n int) array {
 
 func (a array) index(i int) value { return value{val: a.val.Index(i)} }
 
-func indexOf(s reflect.StructField) index { return index(s.Index) }
+func indexOf(s reflect.StructField) index { return s.Index }
 
 func bytesToString(b []byte) string { return string(b) }

tap/extensions/redis/main.go

@@ -10,7 +10,7 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-var protocol api.Protocol = api.Protocol{
+var protocol = api.Protocol{
 	Name:            "redis",
 	LongName:        "Redis Serialization Protocol",
 	Abbreviation:    "REDIS",

tap/extensions/redis/structs.go

@@ -4,7 +4,7 @@ type RedisType string
 type RedisCommand string
 type RedisKeyword string
 
-var types map[rune]RedisType = map[rune]RedisType{
+var types = map[rune]RedisType{
 	plusByte:          "Simple String",
 	dollarByte:        "Bulk String",
 	asteriskByte:      "Array",
@@ -13,7 +13,7 @@ var types map[rune]RedisType = map[rune]RedisType{
 	notApplicableByte: "N/A",
 }
 
-var commands []RedisCommand = []RedisCommand{
+var commands = []RedisCommand{
 	"PING",
 	"SET",
 	"GET",
@@ -200,7 +200,7 @@ var commands []RedisCommand = []RedisCommand{
 	"XCLAIM",
 }
 
-var keywords []RedisKeyword = []RedisKeyword{
+var keywords = []RedisKeyword{
 	"AGGREGATE",
 	"ALPHA",
 	"ASC",

tap/go.mod

@@ -3,10 +3,12 @@ module github.com/up9inc/mizu/tap
 go 1.17
 
 require (
-	github.com/cilium/ebpf v0.8.0
+	github.com/Masterminds/semver v1.5.0
+	github.com/cilium/ebpf v0.8.1
 	github.com/go-errors/errors v1.4.2
 	github.com/google/gopacket v1.1.19
 	github.com/hashicorp/golang-lru v0.5.4
+	github.com/knightsc/gapstone v0.0.0-20211014144438-5e0e64002a6e
 	github.com/shirou/gopsutil v3.21.11+incompatible
 	github.com/struCoder/pidusage v0.2.1
 	github.com/up9inc/mizu/logger v0.0.0

tap/go.sum

@@ -1,12 +1,14 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
+github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cilium/ebpf v0.8.0 h1:2V6KSg3FRADVU2BMIRemZ0hV+9OM+aAHhZDjQyjJTAs=
-github.com/cilium/ebpf v0.8.0/go.mod h1:f5zLIM0FSNuAkSyLAN7X+Hy6yznlF1mNiWUMfxMtrgk=
+github.com/cilium/ebpf v0.8.1 h1:bLSSEbBLqGPXxls55pGr5qWZaTqcmfDJHhou7t254ao=
+github.com/cilium/ebpf v0.8.1/go.mod h1:f5zLIM0FSNuAkSyLAN7X+Hy6yznlF1mNiWUMfxMtrgk=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -81,6 +83,8 @@ github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnr
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/knightsc/gapstone v0.0.0-20211014144438-5e0e64002a6e h1:6J5obSn9umEThiYzWzndcPOZR0Qj/sVCZpH6V1G7yNE=
+github.com/knightsc/gapstone v0.0.0-20211014144438-5e0e64002a6e/go.mod h1:1K5hEzsMBLTPdRJKEHqBFJ8Zt2VRqDhomcQ11KH0WW4=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
@@ -290,5 +294,6 @@ sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz
 sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
 sigs.k8s.io/structured-merge-diff/v4 v4.2.1 h1:bKCqE9GvQ5tiVHn5rfn1r+yao3aLQEaLzkkmAkf+A6Y=
 sigs.k8s.io/structured-merge-diff/v4 v4.2.1/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
-sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
+sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo=
+sigs.k8s.io/yaml v1.3.0/go.mod h1:GeOyir5tyXNByN85N/dRIT9es5UQNerPYEKK56eTBm8=

tap/passive_tapper.go

@@ -14,9 +14,9 @@ import (
 	"fmt"
 	"os"
 	"runtime"
+	"strconv"
 	"strings"
 	"time"
-	"strconv"
 
 	"github.com/shirou/gopsutil/cpu"
 	"github.com/struCoder/pidusage"
@@ -45,6 +45,7 @@ var quiet = flag.Bool("quiet", false, "Be quiet regarding errors")
 var hexdumppkt = flag.Bool("dumppkt", false, "Dump packet as hex")
 var procfs = flag.String("procfs", "/proc", "The procfs directory, used when mapping host volumes into a container")
 var ignoredPorts = flag.String("ignore-ports", "", "A comma separated list of ports to ignore")
+var maxLiveStreams = flag.Int("max-live-streams", 500, "Maximum live streams to handle concurrently")
 
 // capture
 var iface = flag.String("i", "en0", "Interface to read packets from")
@@ -59,8 +60,10 @@ var tls = flag.Bool("tls", false, "Enable TLS tapper")
 var memprofile = flag.String("memprofile", "", "Write memory profile")
 
 type TapOpts struct {
-	HostMode         bool
-	IgnoredPorts     []uint16
+	HostMode               bool
+	IgnoredPorts           []uint16
+	maxLiveStreams         int
+	staleConnectionTimeout time.Duration
 }
 
 var extensions []*api.Extension                     // global
@@ -89,7 +92,13 @@ func StartPassiveTapper(opts *TapOpts, outputItems chan *api.OutputChannelItem,
 		diagnose.StartMemoryProfiler(os.Getenv(MemoryProfilingDumpPath), os.Getenv(MemoryProfilingTimeIntervalSeconds))
 	}
 
-	assembler := initializePassiveTapper(opts, outputItems, streamsMap)
+	assembler, err := initializePassiveTapper(opts, outputItems, streamsMap)
+
+	if err != nil {
+		logger.Log.Errorf("Error initializing tapper %w", err)
+		return
+	}
+
 	go startPassiveTapper(streamsMap, assembler)
 }
 
@@ -100,7 +109,7 @@ func UpdateTapTargets(newTapTargets []v1.Pod) {
 
 	packetSourceManager.UpdatePods(tapTargets, !*nodefrag, mainPacketInputChan)
 
-	if tlsTapperInstance != nil {
+	if tlsTapperInstance != nil && os.Getenv("MIZU_GLOBAL_GOLANG_PID") == "" {
 		if err := tlstapper.UpdateTapTargets(tlsTapperInstance, &tapTargets, *procfs); err != nil {
 			tlstapper.LogError(err)
 			success = false
@@ -124,7 +133,7 @@ func printNewTapTargets(success bool) {
 	}
 }
 
-func printPeriodicStats(cleaner *Cleaner) {
+func printPeriodicStats(cleaner *Cleaner, assembler *tcpAssembler) {
 	statsPeriod := time.Second * time.Duration(*statsevery)
 	ticker := time.NewTicker(statsPeriod)
 
@@ -162,8 +171,10 @@ func printPeriodicStats(cleaner *Cleaner) {
 			}
 		}
 		logger.Log.Infof(
-			"mem: %d, goroutines: %d, cpu: %f, cores: %d/%d, rss: %f",
+			"heap-alloc: %d, heap-idle: %d, heap-objects: %d, goroutines: %d, cpu: %f, cores: %d/%d, rss: %f",
 			memStats.HeapAlloc,
+			memStats.HeapIdle,
+			memStats.HeapObjects,
 			runtime.NumGoroutine(),
 			sysInfo.CPU,
 			logicalCoreCount,
@@ -172,15 +183,19 @@ func printPeriodicStats(cleaner *Cleaner) {
 
 		// Since the last print
 		cleanStats := cleaner.dumpStats()
+		assemblerStats := assembler.DumpStats()
 		logger.Log.Infof(
 			"cleaner - flushed connections: %d, closed connections: %d, deleted messages: %d",
-			cleanStats.flushed,
-			cleanStats.closed,
+			assemblerStats.flushedConnections,
+			assemblerStats.closedConnections,
 			cleanStats.deleted,
 		)
 		currentAppStats := diagnose.AppStats.DumpStats()
 		appStatsJSON, _ := json.Marshal(currentAppStats)
 		logger.Log.Infof("app stats - %v", string(appStatsJSON))
+
+		// At the moment
+		logger.Log.Infof("assembler-stats: %s, packet-source-stats: %s", assembler.Dump(), packetSourceManager.Stats())
 	}
 }
 
@@ -208,7 +223,7 @@ func initializePacketSources() error {
 	return err
 }
 
-func initializePassiveTapper(opts *TapOpts, outputItems chan *api.OutputChannelItem, streamsMap api.TcpStreamMap) *tcpAssembler {
+func initializePassiveTapper(opts *TapOpts, outputItems chan *api.OutputChannelItem, streamsMap api.TcpStreamMap) (*tcpAssembler, error) {
 	diagnose.InitializeErrorsMap(*debug, *verbose, *quiet)
 	diagnose.InitializeTapperInternalStats()
 
@@ -219,10 +234,10 @@ func initializePassiveTapper(opts *TapOpts, outputItems chan *api.OutputChannelI
 	}
 
 	opts.IgnoredPorts = append(opts.IgnoredPorts, buildIgnoredPortsList(*ignoredPorts)...)
+	opts.maxLiveStreams = *maxLiveStreams
+	opts.staleConnectionTimeout = time.Duration(*staleTimeoutSeconds) * time.Second
 
-	assembler := NewTcpAssembler(outputItems, streamsMap, opts)
-
-	return assembler
+	return NewTcpAssembler(outputItems, streamsMap, opts)
 }
 
 func startPassiveTapper(streamsMap api.TcpStreamMap, assembler *tcpAssembler) {
@@ -233,14 +248,13 @@ func startPassiveTapper(streamsMap api.TcpStreamMap, assembler *tcpAssembler) {
 	staleConnectionTimeout := time.Second * time.Duration(*staleTimeoutSeconds)
 	cleaner := Cleaner{
 		assembler:         assembler.Assembler,
-		assemblerMutex:    &assembler.assemblerMutex,
 		cleanPeriod:       cleanPeriod,
 		connectionTimeout: staleConnectionTimeout,
 		streamsMap:        streamsMap,
 	}
 	cleaner.start()
 
-	go printPeriodicStats(&cleaner)
+	go printPeriodicStats(&cleaner, assembler)
 
 	assembler.processPackets(*hexdumppkt, mainPacketInputChan)
 
@@ -278,7 +292,16 @@ func startTlsTapper(extension *api.Extension, outputItems chan *api.OutputChanne
 	// A quick way to instrument libssl.so without PID filtering - used for debuging and troubleshooting
 	//
 	if os.Getenv("MIZU_GLOBAL_SSL_LIBRARY") != "" {
-		if err := tls.GlobalTap(os.Getenv("MIZU_GLOBAL_SSL_LIBRARY")); err != nil {
+		if err := tls.GlobalSSLLibTap(os.Getenv("MIZU_GLOBAL_SSL_LIBRARY")); err != nil {
+			tlstapper.LogError(err)
+			return nil
+		}
+	}
+
+	// A quick way to instrument Go `crypto/tls` without PID filtering - used for debuging and troubleshooting
+	//
+	if os.Getenv("MIZU_GLOBAL_GOLANG_PID") != "" {
+		if err := tls.GlobalGoTap(*procfs, os.Getenv("MIZU_GLOBAL_GOLANG_PID")); err != nil {
 			tlstapper.LogError(err)
 			return nil
 		}

tap/source/packet_source_manager.go

@@ -160,3 +160,19 @@ func (m *PacketSourceManager) Close() {
 		src.close()
 	}
 }
+
+func (m *PacketSourceManager) Stats() string {
+	result := ""
+
+	for _, source := range m.sources {
+		stats, err := source.Stats()
+
+		if err != nil {
+			result = result + fmt.Sprintf("[%s: err:%s]", source.String(), err)
+		} else {
+			result = result + fmt.Sprintf("[%s: rec: %d dropped: %d]", source.String(), stats.PacketsReceived, stats.PacketsDropped)
+		}
+	}
+
+	return result
+}

tap/source/tcp_packet_source.go

@@ -116,6 +116,10 @@ func (source *tcpPacketSource) close() {
 	}
 }
 
+func (source *tcpPacketSource) Stats() (stat *pcap.Stats, err error) {
+	return source.handle.Stats()
+}
+
 func (source *tcpPacketSource) readPackets(ipdefrag bool, packets chan<- TcpPacketInfo) {
 	if dbgctl.MizuTapperDisablePcap {
 		return

tap/tcp_assembler.go

@@ -2,14 +2,15 @@ package tap
 
 import (
 	"encoding/hex"
+	"fmt"
 	"os"
 	"os/signal"
-	"sync"
 	"time"
 
 	"github.com/google/gopacket"
 	"github.com/google/gopacket/layers"
 	"github.com/google/gopacket/reassembly"
+	"github.com/hashicorp/golang-lru/simplelru"
 	"github.com/up9inc/mizu/logger"
 	"github.com/up9inc/mizu/tap/api"
 	"github.com/up9inc/mizu/tap/dbgctl"
@@ -17,14 +18,33 @@ import (
 	"github.com/up9inc/mizu/tap/source"
 )
 
-const PACKETS_SEEN_LOG_THRESHOLD = 1000
+const (
+	lastClosedConnectionsMaxItems = 1000
+	packetsSeenLogThreshold       = 1000
+	lastAckThreshold              = time.Duration(3) * time.Second
+)
+
+type connectionId string
+
+func NewConnectionId(c string) connectionId {
+	return connectionId(c)
+}
+
+type AssemblerStats struct {
+	flushedConnections int
+	closedConnections  int
+}
 
 type tcpAssembler struct {
 	*reassembly.Assembler
-	streamPool     *reassembly.StreamPool
-	streamFactory  *tcpStreamFactory
-	assemblerMutex sync.Mutex
-	ignoredPorts   []uint16
+	streamPool             *reassembly.StreamPool
+	streamFactory          *tcpStreamFactory
+	ignoredPorts           []uint16
+	lastClosedConnections  *simplelru.LRU // Actual type is map[string]int64 which is "connId -> lastSeen"
+	liveConnections        map[connectionId]bool
+	maxLiveStreams         int
+	staleConnectionTimeout time.Duration
+	stats                  AssemblerStats
 }
 
 // Context
@@ -38,108 +58,166 @@ func (c *context) GetCaptureInfo() gopacket.CaptureInfo {
 	return c.CaptureInfo
 }
 
-func NewTcpAssembler(outputItems chan *api.OutputChannelItem, streamsMap api.TcpStreamMap, opts *TapOpts) *tcpAssembler {
+func NewTcpAssembler(outputItems chan *api.OutputChannelItem, streamsMap api.TcpStreamMap, opts *TapOpts) (*tcpAssembler, error) {
 	var emitter api.Emitter = &api.Emitting{
 		AppStats:      &diagnose.AppStats,
 		OutputChannel: outputItems,
 	}
 
-	streamFactory := NewTcpStreamFactory(emitter, streamsMap, opts)
-	streamPool := reassembly.NewStreamPool(streamFactory)
-	assembler := reassembly.NewAssembler(streamPool)
+	lastClosedConnections, err := simplelru.NewLRU(lastClosedConnectionsMaxItems, func(key interface{}, value interface{}) {})
+
+	if err != nil {
+		return nil, err
+	}
+
+	a := &tcpAssembler{
+		ignoredPorts:           opts.IgnoredPorts,
+		lastClosedConnections:  lastClosedConnections,
+		liveConnections:        make(map[connectionId]bool),
+		maxLiveStreams:         opts.maxLiveStreams,
+		staleConnectionTimeout: opts.staleConnectionTimeout,
+		stats:                  AssemblerStats{},
+	}
+
+	a.streamFactory = NewTcpStreamFactory(emitter, streamsMap, opts, a)
+	a.streamPool = reassembly.NewStreamPool(a.streamFactory)
+	a.Assembler = reassembly.NewAssembler(a.streamPool)
 
 	maxBufferedPagesTotal := GetMaxBufferedPagesPerConnection()
 	maxBufferedPagesPerConnection := GetMaxBufferedPagesTotal()
 	logger.Log.Infof("Assembler options: maxBufferedPagesTotal=%d, maxBufferedPagesPerConnection=%d, opts=%v",
 		maxBufferedPagesTotal, maxBufferedPagesPerConnection, opts)
-	assembler.AssemblerOptions.MaxBufferedPagesTotal = maxBufferedPagesTotal
-	assembler.AssemblerOptions.MaxBufferedPagesPerConnection = maxBufferedPagesPerConnection
+	a.Assembler.AssemblerOptions.MaxBufferedPagesTotal = maxBufferedPagesTotal
+	a.Assembler.AssemblerOptions.MaxBufferedPagesPerConnection = maxBufferedPagesPerConnection
 
-	return &tcpAssembler{
-		Assembler:     assembler,
-		streamPool:    streamPool,
-		streamFactory: streamFactory,
-		ignoredPorts:  opts.IgnoredPorts,
-	}
+	return a, nil
 }
 
 func (a *tcpAssembler) processPackets(dumpPacket bool, packets <-chan source.TcpPacketInfo) {
 	signalChan := make(chan os.Signal, 1)
 	signal.Notify(signalChan, os.Interrupt)
+	ticker := time.NewTicker(a.staleConnectionTimeout)
 
-	for packetInfo := range packets {
-		packetsCount := diagnose.AppStats.IncPacketsCount()
-
-		if packetsCount%PACKETS_SEEN_LOG_THRESHOLD == 0 {
-			logger.Log.Debugf("Packets seen: #%d", packetsCount)
-		}
-
-		packet := packetInfo.Packet
-		data := packet.Data()
-		diagnose.AppStats.UpdateProcessedBytes(uint64(len(data)))
-		if dumpPacket {
-			logger.Log.Debugf("Packet content (%d/0x%x) - %s", len(data), len(data), hex.Dump(data))
-		}
-
-		tcp := packet.Layer(layers.LayerTypeTCP)
-		if tcp != nil {
-			diagnose.AppStats.IncTcpPacketsCount()
-			tcp := tcp.(*layers.TCP)
-
-			if a.shouldIgnorePort(uint16(tcp.DstPort)) {
-				diagnose.AppStats.IncIgnoredPacketsCount()
-			} else {
-				c := context{
-					CaptureInfo: packet.Metadata().CaptureInfo,
-					Origin:      packetInfo.Source.Origin,
-				}
-				diagnose.InternalStats.Totalsz += len(tcp.Payload)
-				if !dbgctl.MizuTapperDisableTcpReassembly {
-					a.assemblerMutex.Lock()
-					a.AssembleWithContext(packet.NetworkLayer().NetworkFlow(), tcp, &c)
-					a.assemblerMutex.Unlock()
-				}
-			}
-		}
-
-		done := *maxcount > 0 && int64(diagnose.AppStats.PacketsCount) >= *maxcount
-		if done {
-			errorMapLen, _ := diagnose.TapErrors.GetErrorsSummary()
-			logger.Log.Infof("Processed %v packets (%v bytes) in %v (errors: %v, errTypes:%v)",
-				diagnose.AppStats.PacketsCount,
-				diagnose.AppStats.ProcessedBytes,
-				time.Since(diagnose.AppStats.StartTime),
-				diagnose.TapErrors.ErrorsCount,
-				errorMapLen)
-		}
-
+out:
+	for {
 		select {
+		case packetInfo, ok := <-packets:
+			if !ok {
+				break out
+			}
+			if a.processPacket(packetInfo, dumpPacket) {
+				break out
+			}
 		case <-signalChan:
 			logger.Log.Infof("Caught SIGINT: aborting")
-			done = true
-		default:
-			// NOP: continue
-		}
-		if done {
-			break
+			break out
+		case <-ticker.C:
+			a.periodicClean()
 		}
 	}
 
-	a.assemblerMutex.Lock()
 	closed := a.FlushAll()
-	a.assemblerMutex.Unlock()
 	logger.Log.Debugf("Final flush: %d closed", closed)
 }
 
+func (a *tcpAssembler) processPacket(packetInfo source.TcpPacketInfo, dumpPacket bool) bool {
+	packetsCount := diagnose.AppStats.IncPacketsCount()
+
+	if packetsCount%packetsSeenLogThreshold == 0 {
+		logger.Log.Debugf("Packets seen: #%d", packetsCount)
+	}
+
+	packet := packetInfo.Packet
+	data := packet.Data()
+	diagnose.AppStats.UpdateProcessedBytes(uint64(len(data)))
+	if dumpPacket {
+		logger.Log.Debugf("Packet content (%d/0x%x) - %s", len(data), len(data), hex.Dump(data))
+	}
+
+	tcp := packet.Layer(layers.LayerTypeTCP)
+	if tcp != nil {
+		a.processTcpPacket(packetInfo.Source.Origin, packet, tcp.(*layers.TCP))
+	}
+
+	done := *maxcount > 0 && int64(diagnose.AppStats.PacketsCount) >= *maxcount
+	if done {
+		errorMapLen, _ := diagnose.TapErrors.GetErrorsSummary()
+		logger.Log.Infof("Processed %v packets (%v bytes) in %v (errors: %v, errTypes:%v)",
+			diagnose.AppStats.PacketsCount,
+			diagnose.AppStats.ProcessedBytes,
+			time.Since(diagnose.AppStats.StartTime),
+			diagnose.TapErrors.ErrorsCount,
+			errorMapLen)
+	}
+	return done
+}
+
+func (a *tcpAssembler) processTcpPacket(origin api.Capture, packet gopacket.Packet, tcp *layers.TCP) {
+	diagnose.AppStats.IncTcpPacketsCount()
+	if a.shouldIgnorePort(uint16(tcp.DstPort)) || a.shouldIgnorePort(uint16(tcp.SrcPort)) {
+		diagnose.AppStats.IncIgnoredPacketsCount()
+		return
+	}
+
+	id := getConnectionId(packet.NetworkLayer().NetworkFlow().Src().String(),
+		packet.TransportLayer().TransportFlow().Src().String(),
+		packet.NetworkLayer().NetworkFlow().Dst().String(),
+		packet.TransportLayer().TransportFlow().Dst().String())
+
+	if a.isRecentlyClosed(id) {
+		diagnose.AppStats.IncIgnoredLastAckCount()
+		return
+	}
+
+	if a.shouldThrottle(id) {
+		diagnose.AppStats.IncThrottledPackets()
+		return
+	}
+
+	c := context{
+		CaptureInfo: packet.Metadata().CaptureInfo,
+		Origin:      origin,
+	}
+	diagnose.InternalStats.Totalsz += len(tcp.Payload)
+	if !dbgctl.MizuTapperDisableTcpReassembly {
+		a.AssembleWithContext(packet.NetworkLayer().NetworkFlow(), tcp, &c)
+	}
+}
+
+func (a *tcpAssembler) tcpStreamCreated(stream *tcpStream) {
+	a.liveConnections[stream.connectionId] = true
+}
+
+func (a *tcpAssembler) tcpStreamClosed(stream *tcpStream) {
+	a.lastClosedConnections.Add(stream.connectionId, time.Now().UnixMilli())
+	delete(a.liveConnections, stream.connectionId)
+}
+
+func (a *tcpAssembler) isRecentlyClosed(c connectionId) bool {
+	if closedTimeMillis, ok := a.lastClosedConnections.Get(c); ok {
+		timeSinceClosed := time.Since(time.UnixMilli(closedTimeMillis.(int64)))
+		if timeSinceClosed < lastAckThreshold {
+			return true
+		}
+	}
+	return false
+}
+
+func (a *tcpAssembler) shouldThrottle(c connectionId) bool {
+	if _, ok := a.liveConnections[c]; ok {
+		return false
+	}
+
+	return len(a.liveConnections) > a.maxLiveStreams
+}
+
 func (a *tcpAssembler) dumpStreamPool() {
 	a.streamPool.Dump()
 }
 
 func (a *tcpAssembler) waitAndDump() {
 	a.streamFactory.WaitGoRoutines()
-	a.assemblerMutex.Lock()
 	logger.Log.Debugf("%s", a.Dump())
-	a.assemblerMutex.Unlock()
 }
 
 func (a *tcpAssembler) shouldIgnorePort(port uint16) bool {
@@ -151,3 +229,26 @@ func (a *tcpAssembler) shouldIgnorePort(port uint16) bool {
 
 	return false
 }
+
+func (a *tcpAssembler) periodicClean() {
+	flushed, closed := a.FlushCloseOlderThan(time.Now().Add(-a.staleConnectionTimeout))
+	stats := a.stats
+	stats.closedConnections += closed
+	stats.flushedConnections += flushed
+}
+
+func (a *tcpAssembler) DumpStats() AssemblerStats {
+	result := a.stats
+	a.stats = AssemblerStats{}
+	return result
+}
+
+func getConnectionId(saddr string, sport string, daddr string, dport string) connectionId {
+	s := fmt.Sprintf("%s:%s", saddr, sport)
+	d := fmt.Sprintf("%s:%s", daddr, dport)
+	if s > d {
+		return NewConnectionId(fmt.Sprintf("%s#%s", s, d))
+	} else {
+		return NewConnectionId(fmt.Sprintf("%s#%s", d, s))
+	}
+}

tap/tcp_reassembly_stream.go

@@ -151,6 +151,6 @@ func (t *tcpReassemblyStream) ReassemblyComplete(ac reassembly.AssemblerContext)
 	if t.tcpStream.GetIsTapTarget() && !t.tcpStream.GetIsClosed() {
 		t.tcpStream.close()
 	}
-	// do not remove the connection to allow last ACK
-	return false
+
+	return true
 }

tap/tcp_stream.go

@@ -8,6 +8,11 @@ import (
 	"github.com/up9inc/mizu/tap/dbgctl"
 )
 
+type tcpStreamCallbacks interface {
+	tcpStreamCreated(stream *tcpStream)
+	tcpStreamClosed(stream *tcpStream)
+}
+
 /* It's a connection (bidirectional)
  * Implements gopacket.reassembly.Stream interface (Accept, ReassembledSG, ReassemblyComplete)
  * ReassembledSG gets called when new reassembled data is ready (i.e. bytes in order, no duplicates, complete)
@@ -25,16 +30,25 @@ type tcpStream struct {
 	reqResMatchers []api.RequestResponseMatcher
 	createdAt      time.Time
 	streamsMap     api.TcpStreamMap
+	connectionId   connectionId
+	callbacks      tcpStreamCallbacks
 	sync.Mutex
 }
 
-func NewTcpStream(isTapTarget bool, streamsMap api.TcpStreamMap, capture api.Capture) *tcpStream {
-	return &tcpStream{
-		isTapTarget: isTapTarget,
-		streamsMap:  streamsMap,
-		origin:      capture,
-		createdAt:   time.Now(),
+func NewTcpStream(isTapTarget bool, streamsMap api.TcpStreamMap, capture api.Capture,
+	connectionId connectionId, callbacks tcpStreamCallbacks) *tcpStream {
+	t := &tcpStream{
+		isTapTarget:  isTapTarget,
+		streamsMap:   streamsMap,
+		origin:       capture,
+		createdAt:    time.Now(),
+		connectionId: connectionId,
+		callbacks:    callbacks,
 	}
+
+	t.callbacks.tcpStreamCreated(t)
+
+	return t
 }
 
 func (t *tcpStream) getId() int64 {
@@ -56,9 +70,9 @@ func (t *tcpStream) close() {
 	t.isClosed = true
 
 	t.streamsMap.Delete(t.id)
-
 	t.client.close()
 	t.server.close()
+	t.callbacks.tcpStreamClosed(t)
 }
 
 func (t *tcpStream) addCounterPair(counterPair *api.CounterPair) {

tap/tcp_stream_factory.go

@@ -19,14 +19,15 @@ import (
  * Generates a new tcp stream for each new tcp connection. Closes the stream when the connection closes.
  */
 type tcpStreamFactory struct {
-	wg         sync.WaitGroup
-	emitter    api.Emitter
-	streamsMap api.TcpStreamMap
-	ownIps     []string
-	opts       *TapOpts
+	wg               sync.WaitGroup
+	emitter          api.Emitter
+	streamsMap       api.TcpStreamMap
+	ownIps           []string
+	opts             *TapOpts
+	streamsCallbacks tcpStreamCallbacks
 }
 
-func NewTcpStreamFactory(emitter api.Emitter, streamsMap api.TcpStreamMap, opts *TapOpts) *tcpStreamFactory {
+func NewTcpStreamFactory(emitter api.Emitter, streamsMap api.TcpStreamMap, opts *TapOpts, streamsCallbacks tcpStreamCallbacks) *tcpStreamFactory {
 	var ownIps []string
 
 	if localhostIPs, err := getLocalhostIPs(); err != nil {
@@ -39,10 +40,11 @@ func NewTcpStreamFactory(emitter api.Emitter, streamsMap api.TcpStreamMap, opts
 	}
 
 	return &tcpStreamFactory{
-		emitter:    emitter,
-		streamsMap: streamsMap,
-		ownIps:     ownIps,
-		opts:       opts,
+		emitter:          emitter,
+		streamsMap:       streamsMap,
+		ownIps:           ownIps,
+		opts:             opts,
+		streamsCallbacks: streamsCallbacks,
 	}
 }
 
@@ -57,7 +59,8 @@ func (factory *tcpStreamFactory) New(net, transport gopacket.Flow, tcpLayer *lay
 
 	props := factory.getStreamProps(srcIp, srcPort, dstIp, dstPort)
 	isTapTarget := props.isTapTarget
-	stream := NewTcpStream(isTapTarget, factory.streamsMap, getPacketOrigin(ac))
+	connectionId := getConnectionId(srcIp, srcPort, dstIp, dstPort)
+	stream := NewTcpStream(isTapTarget, factory.streamsMap, getPacketOrigin(ac), connectionId, factory.streamsCallbacks)
 	reassemblyStream := NewTcpReassemblyStream(fmt.Sprintf("%s:%s", net, transport), tcpLayer, fsmOptions, stream)
 	if stream.GetIsTapTarget() {
 		stream.setId(factory.streamsMap.NextId())

tap/tlstapper/bpf-builder/Dockerfile

@@ -1,5 +1,5 @@
-FROM alpine:3.14
+FROM golang:1.17-alpine
 
-RUN apk --no-cache update && apk --no-cache add clang llvm libbpf-dev go linux-headers
+RUN apk --no-cache update && apk --no-cache add clang llvm libbpf-dev linux-headers
 
 WORKDIR /mizu

tap/tlstapper/bpf-builder/build.sh

@@ -6,17 +6,22 @@ MIZU_HOME=$(realpath ../../../)
 
 docker build -t mizu-ebpf-builder . || exit 1
 
+BPF_TARGET=amd64
+BPF_CFLAGS="-O2 -g -D__TARGET_ARCH_x86"
+ARCH=$(uname -m)
+if [[ $ARCH == "aarch64" ]]; then
+    BPF_TARGET=arm64
+    BPF_CFLAGS="-O2 -g -D__TARGET_ARCH_arm64"
+fi
+
 docker run --rm \
 	--name mizu-ebpf-builder \
 	-v $MIZU_HOME:/mizu \
 	-v $(go env GOPATH):/root/go \
 	-it mizu-ebpf-builder \
 	sh -c "
-		go generate tap/tlstapper/tls_tapper.go
-		chown $(id -u):$(id -g) tap/tlstapper/tlstapper_bpfeb.go
-		chown $(id -u):$(id -g) tap/tlstapper/tlstapper_bpfeb.o
-		chown $(id -u):$(id -g) tap/tlstapper/tlstapper_bpfel.go
-		chown $(id -u):$(id -g) tap/tlstapper/tlstapper_bpfel.o
+		BPF_TARGET=\"$BPF_TARGET\" BPF_CFLAGS=\"$BPF_CFLAGS\" go generate tap/tlstapper/tls_tapper.go
+		chown $(id -u):$(id -g) tap/tlstapper/tlstapper_bpf*
 	" || exit 1
 
 popd

tap/tlstapper/bpf/common.c

@@ -0,0 +1,141 @@
+/*
+Note: This file is licenced differently from the rest of the project
+SPDX-License-Identifier: GPL-2.0
+Copyright (C) UP9 Inc.
+*/
+
+#include "include/headers.h"
+#include "include/util.h"
+#include "include/maps.h"
+#include "include/log.h"
+#include "include/logger_messages.h"
+#include "include/common.h"
+
+
+static __always_inline int add_address_to_chunk(struct pt_regs *ctx, struct tls_chunk* chunk, __u64 id, __u32 fd) {
+    __u32 pid = id >> 32;
+    __u64 key = (__u64) pid << 32 | fd;
+
+    struct fd_info *fdinfo = bpf_map_lookup_elem(&file_descriptor_to_ipv4, &key);
+
+    if (fdinfo == NULL) {
+        return 0;
+    }
+
+    int err = bpf_probe_read(chunk->address, sizeof(chunk->address), fdinfo->ipv4_addr);
+    chunk->flags |= (fdinfo->flags & FLAGS_IS_CLIENT_BIT);
+
+    if (err != 0) {
+        log_error(ctx, LOG_ERROR_READING_FD_ADDRESS, id, err, 0l);
+        return 0;
+    }
+
+    return 1;
+}
+
+static __always_inline void send_chunk_part(struct pt_regs *ctx, __u8* buffer, __u64 id, 
+    struct tls_chunk* chunk, int start, int end) {
+    size_t recorded = MIN(end - start, sizeof(chunk->data));
+
+    if (recorded <= 0) {
+        return;
+    }
+
+    chunk->recorded = recorded;
+    chunk->start = start;
+
+    // This ugly trick is for the ebpf verifier happiness
+    //
+    long err = 0;
+    if (chunk->recorded == sizeof(chunk->data)) {
+        err = bpf_probe_read(chunk->data, sizeof(chunk->data), buffer + start);
+    } else {
+        recorded &= (sizeof(chunk->data) - 1); // Buffer must be N^2
+        err = bpf_probe_read(chunk->data, recorded, buffer + start);
+    }
+
+    if (err != 0) {
+        log_error(ctx, LOG_ERROR_READING_FROM_SSL_BUFFER, id, err, 0l);
+        return;
+    }
+
+    bpf_perf_event_output(ctx, &chunks_buffer, BPF_F_CURRENT_CPU, chunk, sizeof(struct tls_chunk));
+}
+
+static __always_inline void send_chunk(struct pt_regs *ctx, __u8* buffer, __u64 id, struct tls_chunk* chunk) {
+    // ebpf loops must be bounded at compile time, we can't use (i < chunk->len / CHUNK_SIZE)
+    //
+    // 	https://lwn.net/Articles/794934/
+    //
+    // However we want to run in kernel older than 5.3, hence we use "#pragma unroll" anyway
+    //
+    #pragma unroll
+    for (int i = 0; i < MAX_CHUNKS_PER_OPERATION; i++) {
+        if (chunk->len <= (CHUNK_SIZE * i)) {
+            break;
+        }
+
+        send_chunk_part(ctx, buffer, id, chunk, CHUNK_SIZE * i, chunk->len);
+    }
+}
+
+static __always_inline void output_ssl_chunk(struct pt_regs *ctx, struct ssl_info* info, int count_bytes, __u64 id, __u32 flags) {
+    if (count_bytes > (CHUNK_SIZE * MAX_CHUNKS_PER_OPERATION)) {
+        log_error(ctx, LOG_ERROR_BUFFER_TOO_BIG, id, count_bytes, 0l);
+        return;
+    }
+
+    struct tls_chunk* chunk;
+    int zero = 0;
+
+    // If other thread, running on the same CPU get to this point at the same time like us (context switch)
+    //	the data will be corrupted - protection may be added in the future
+    //
+    chunk = bpf_map_lookup_elem(&heap, &zero);
+
+    if (!chunk) {
+        log_error(ctx, LOG_ERROR_ALLOCATING_CHUNK, id, 0l, 0l);
+        return;
+    }
+
+    chunk->flags = flags;
+    chunk->pid = id >> 32;
+    chunk->tgid = id;
+    chunk->len = count_bytes;
+    chunk->fd = info->fd;
+
+    if (!add_address_to_chunk(ctx, chunk, id, chunk->fd)) {
+        // Without an address, we drop the chunk because there is not much to do with it in Go
+        //
+        return;
+    }
+
+    send_chunk(ctx, info->buffer, id, chunk);
+}
+
+static __always_inline struct ssl_info new_ssl_info() {
+    struct ssl_info info = { .fd = invalid_fd, .created_at_nano = bpf_ktime_get_ns() };
+    return info;
+}
+
+static __always_inline struct ssl_info lookup_ssl_info(struct pt_regs *ctx, struct bpf_map_def* map_fd, __u64 pid_tgid) {
+    struct ssl_info *infoPtr = bpf_map_lookup_elem(map_fd, &pid_tgid);
+    struct ssl_info info = new_ssl_info();
+
+    if (infoPtr != NULL) {
+        long err = bpf_probe_read(&info, sizeof(struct ssl_info), infoPtr);
+
+        if (err != 0) {
+            log_error(ctx, LOG_ERROR_READING_SSL_CONTEXT, pid_tgid, err, ORIGIN_SSL_UPROBE_CODE);
+        }
+
+        if ((bpf_ktime_get_ns() - info.created_at_nano) > SSL_INFO_MAX_TTL_NANO) {
+            // If the ssl info is too old, we don't want to use its info because it may be incorrect.
+            //
+            info.fd = invalid_fd;
+            info.created_at_nano = bpf_ktime_get_ns();
+        }
+    }
+
+    return info;
+}

tap/tlstapper/bpf/fd_tracepoints.c

@@ -28,7 +28,7 @@ void sys_enter_read(struct sys_enter_read_ctx *ctx) {
 		return;
 	}
 	
-	struct ssl_info *infoPtr = bpf_map_lookup_elem(&ssl_read_context, &id);
+	struct ssl_info *infoPtr = bpf_map_lookup_elem(&openssl_read_context, &id);
 	
 	if (infoPtr == NULL) {
 		return;
@@ -44,7 +44,7 @@ void sys_enter_read(struct sys_enter_read_ctx *ctx) {
 	
 	info.fd = ctx->fd;
 	
-	err = bpf_map_update_elem(&ssl_read_context, &id, &info, BPF_ANY);
+	err = bpf_map_update_elem(&openssl_read_context, &id, &info, BPF_ANY);
 	
 	if (err != 0) {
 		log_error(ctx, LOG_ERROR_PUTTING_FILE_DESCRIPTOR, id, err, ORIGIN_SYS_ENTER_READ_CODE);
@@ -68,7 +68,7 @@ void sys_enter_write(struct sys_enter_write_ctx *ctx) {
 		return;
 	}
 	
-	struct ssl_info *infoPtr = bpf_map_lookup_elem(&ssl_write_context, &id);
+	struct ssl_info *infoPtr = bpf_map_lookup_elem(&openssl_write_context, &id);
 	
 	if (infoPtr == NULL) {
 		return;
@@ -84,7 +84,7 @@ void sys_enter_write(struct sys_enter_write_ctx *ctx) {
 	
 	info.fd = ctx->fd;
 	
-	err = bpf_map_update_elem(&ssl_write_context, &id, &info, BPF_ANY);
+	err = bpf_map_update_elem(&openssl_write_context, &id, &info, BPF_ANY);
 	
 	if (err != 0) {
 		log_error(ctx, LOG_ERROR_PUTTING_FILE_DESCRIPTOR, id, err, ORIGIN_SYS_ENTER_WRITE_CODE);

tap/tlstapper/bpf/go_uprobes.c

@@ -0,0 +1,163 @@
+/*
+Note: This file is licenced differently from the rest of the project
+SPDX-License-Identifier: GPL-2.0
+Copyright (C) UP9 Inc.
+
+
+---
+
+README
+
+Go does not follow any platform ABI like x86-64 System V ABI.
+Before 1.17, Go followed stack-based Plan9 (Bell Labs) calling convention. (ABI0)
+After 1.17, Go switched to an internal register-based calling convention. (ABIInternal)
+For now, the probes in this file supports only ABIInternal (Go 1.17+)
+
+`uretprobe` in Linux kernel uses trampoline pattern to jump to original return
+address of the probed function. A Goroutine's stack size is 2Kb while a C thread is 2MB on Linux.
+If stack size exceeds 2Kb, Go runtime relocates the stack. That causes the
+return address to become incorrect in case of `uretprobe` and probed Go program crashes.
+Therefore `uretprobe` CAN'T BE USED for a Go program.
+
+`_ex_uprobe` suffixed probes suppose to be `uretprobe`(s) are actually `uprobe`(s)
+because of the non-standard ABI of Go. Therefore we probe all `ret` mnemonics under the symbol
+by automatically finding them through reading the ELF binary and disassembling the symbols.
+Disassembly related code located in `go_offsets.go` file and it uses Capstone Engine.
+Solution based on: https://github.com/iovisor/bcc/issues/1320#issuecomment-407927542
+*Example* We probe an arbitrary point in a function body (offset +559):
+https://github.com/golang/go/blob/go1.17.6/src/crypto/tls/conn.go#L1299
+
+We get the file descriptor using the common $rax register that holds the address
+of `go.itab.*net.TCPConn,net.Conn` and through a series of dereferencing
+using `bpf_probe_read` calls in `go_crypto_tls_get_fd_from_tcp_conn` function.
+
+---
+
+SOURCES:
+
+Tracing Go Functions with eBPF (before 1.17): https://www.grant.pizza/blog/tracing-go-functions-with-ebpf-part-2/
+Challenges of BPF Tracing Go: https://blog.0x74696d.com/posts/challenges-of-bpf-tracing-go/
+x86 calling conventions: https://en.wikipedia.org/wiki/X86_calling_conventions
+Plan 9 from Bell Labs: https://en.wikipedia.org/wiki/Plan_9_from_Bell_Labs
+The issue for calling convention change in Go: https://github.com/golang/go/issues/40724
+Proposal of Register-based Go calling convention: https://go.googlesource.com/proposal/+/master/design/40724-register-calling.md
+Go internal ABI (1.17) specification: https://go.googlesource.com/go/+/refs/heads/dev.regabi/src/cmd/compile/internal-abi.md
+Go internal ABI (current) specification: https://go.googlesource.com/go/+/refs/heads/master/src/cmd/compile/abi-internal.md
+A Quick Guide to Go's Assembler: https://go.googlesource.com/go/+/refs/heads/dev.regabi/doc/asm.html
+Dissecting Go Binaries: https://www.grant.pizza/blog/dissecting-go-binaries/
+Capstone Engine: https://www.capstone-engine.org/
+*/
+
+#include "include/headers.h"
+#include "include/util.h"
+#include "include/maps.h"
+#include "include/log.h"
+#include "include/logger_messages.h"
+#include "include/pids.h"
+#include "include/common.h"
+#include "include/go_abi_internal.h"
+#include "include/go_types.h"
+
+static __always_inline __u32 go_crypto_tls_get_fd_from_tcp_conn(struct pt_regs *ctx) {
+    struct go_interface conn;
+    long err = bpf_probe_read(&conn, sizeof(conn), (void*)GO_ABI_INTERNAL_PT_REGS_R1(ctx));
+    if (err != 0) {
+        return invalid_fd;
+    }
+
+    void* net_fd_ptr;
+    err = bpf_probe_read(&net_fd_ptr, sizeof(net_fd_ptr), conn.ptr);
+    if (err != 0) {
+        return invalid_fd;
+    }
+
+    __u32 fd;
+    err = bpf_probe_read(&fd, sizeof(fd), net_fd_ptr + 0x10);
+    if (err != 0) {
+        return invalid_fd;
+    }
+
+    return fd;
+}
+
+static __always_inline void go_crypto_tls_uprobe(struct pt_regs *ctx, struct bpf_map_def* go_context) {
+    __u64 pid_tgid = bpf_get_current_pid_tgid();
+    __u64 pid = pid_tgid >> 32;
+    if (!should_tap(pid)) {
+        return;
+    }
+
+    struct ssl_info info = new_ssl_info();
+
+    info.buffer_len = GO_ABI_INTERNAL_PT_REGS_R2(ctx);
+    info.buffer = (void*)GO_ABI_INTERNAL_PT_REGS_R4(ctx);
+    info.fd = go_crypto_tls_get_fd_from_tcp_conn(ctx);
+
+    // GO_ABI_INTERNAL_PT_REGS_GP is Goroutine address
+    __u64 pid_fp = pid << 32 | GO_ABI_INTERNAL_PT_REGS_GP(ctx);
+    long err = bpf_map_update_elem(go_context, &pid_fp, &info, BPF_ANY);
+
+    if (err != 0) {
+        log_error(ctx, LOG_ERROR_PUTTING_SSL_CONTEXT, pid_tgid, err, 0l);
+    }
+
+    return;
+}
+
+static __always_inline void go_crypto_tls_ex_uprobe(struct pt_regs *ctx, struct bpf_map_def* go_context, __u32 flags) {
+    __u64 pid_tgid = bpf_get_current_pid_tgid();
+    __u64 pid = pid_tgid >> 32;
+    if (!should_tap(pid)) {
+        return;
+    }
+
+    // GO_ABI_INTERNAL_PT_REGS_GP is Goroutine address
+    __u64 pid_fp = pid << 32 | GO_ABI_INTERNAL_PT_REGS_GP(ctx);
+    struct ssl_info *info_ptr = bpf_map_lookup_elem(go_context, &pid_fp);
+
+    if (info_ptr == NULL) {
+        return;
+    }
+    bpf_map_delete_elem(go_context, &pid_fp);
+
+    struct ssl_info info;
+    long err = bpf_probe_read(&info, sizeof(struct ssl_info), info_ptr);
+
+    if (err != 0) {
+        log_error(ctx, LOG_ERROR_READING_SSL_CONTEXT, pid_tgid, err, ORIGIN_SSL_URETPROBE_CODE);
+        return;
+    }
+
+    // In case of read, the length is determined on return
+    if (flags == FLAGS_IS_READ_BIT) {
+        info.buffer_len = GO_ABI_INTERNAL_PT_REGS_R1(ctx); // n in return n, nil
+        // This check achieves ignoring 0 length reads (the reads result with an error)
+        if (info.buffer_len <= 0) {
+            return;
+        }
+    }
+
+    output_ssl_chunk(ctx, &info, info.buffer_len, pid_tgid, flags);
+
+    return;
+}
+
+SEC("uprobe/go_crypto_tls_write")
+void BPF_KPROBE(go_crypto_tls_write) {
+    go_crypto_tls_uprobe(ctx, &go_write_context);
+}
+
+SEC("uprobe/go_crypto_tls_write_ex")
+void BPF_KPROBE(go_crypto_tls_write_ex) {
+    go_crypto_tls_ex_uprobe(ctx, &go_write_context, 0);
+}
+
+SEC("uprobe/go_crypto_tls_read")
+void BPF_KPROBE(go_crypto_tls_read) {
+    go_crypto_tls_uprobe(ctx, &go_read_context);
+}
+
+SEC("uprobe/go_crypto_tls_read_ex")
+void BPF_KPROBE(go_crypto_tls_read_ex) {
+    go_crypto_tls_ex_uprobe(ctx, &go_read_context, FLAGS_IS_READ_BIT);
+}

tap/tlstapper/bpf/include/common.h

@@ -0,0 +1,19 @@
+/*
+Note: This file is licenced differently from the rest of the project
+SPDX-License-Identifier: GPL-2.0
+Copyright (C) UP9 Inc.
+*/
+
+#ifndef __COMMON__
+#define __COMMON__
+
+const __s32 invalid_fd = -1;
+
+static int add_address_to_chunk(struct pt_regs *ctx, struct tls_chunk* chunk, __u64 id, __u32 fd);
+static void send_chunk_part(struct pt_regs *ctx, __u8* buffer, __u64 id, struct tls_chunk* chunk, int start, int end);
+static void send_chunk(struct pt_regs *ctx, __u8* buffer, __u64 id, struct tls_chunk* chunk);
+static void output_ssl_chunk(struct pt_regs *ctx, struct ssl_info* info, int count_bytes, __u64 id, __u32 flags);
+static struct ssl_info new_ssl_info();
+static struct ssl_info lookup_ssl_info(struct pt_regs *ctx, struct bpf_map_def* map_fd, __u64 pid_tgid);
+
+#endif /* __COMMON__ */

tap/tlstapper/bpf/include/go_abi_internal.h

@@ -0,0 +1,141 @@
+/*
+Note: This file is licenced differently from the rest of the project
+SPDX-License-Identifier: GPL-2.0
+Copyright (C) UP9 Inc.
+*/
+
+#ifndef __GO_ABI_INTERNAL__
+#define __GO_ABI_INTERNAL__
+
+/*
+Go internal ABI specification
+https://go.googlesource.com/go/+/refs/heads/master/src/cmd/compile/abi-internal.md
+*/
+
+/* Scan the ARCH passed in from ARCH env variable */
+#if defined(__TARGET_ARCH_x86)
+    #define bpf_target_x86
+    #define bpf_target_defined
+#elif defined(__TARGET_ARCH_s390)
+    #define bpf_target_s390
+    #define bpf_target_defined
+#elif defined(__TARGET_ARCH_arm)
+    #define bpf_target_arm
+    #define bpf_target_defined
+#elif defined(__TARGET_ARCH_arm64)
+    #define bpf_target_arm64
+    #define bpf_target_defined
+#elif defined(__TARGET_ARCH_mips)
+    #define bpf_target_mips
+    #define bpf_target_defined
+#elif defined(__TARGET_ARCH_powerpc)
+    #define bpf_target_powerpc
+    #define bpf_target_defined
+#elif defined(__TARGET_ARCH_sparc)
+    #define bpf_target_sparc
+    #define bpf_target_defined
+#else
+    #undef bpf_target_defined
+#endif
+
+/* Fall back to what the compiler says */
+#ifndef bpf_target_defined
+#if defined(__x86_64__)
+    #define bpf_target_x86
+#elif defined(__s390__)
+    #define bpf_target_s390
+#elif defined(__arm__)
+    #define bpf_target_arm
+#elif defined(__aarch64__)
+    #define bpf_target_arm64
+#elif defined(__mips__)
+    #define bpf_target_mips
+#elif defined(__powerpc__)
+    #define bpf_target_powerpc
+#elif defined(__sparc__)
+    #define bpf_target_sparc
+#endif
+#endif
+
+#if defined(bpf_target_x86)
+
+#ifdef __i386__
+
+/*
+https://go.googlesource.com/go/+/refs/heads/dev.regabi/src/cmd/compile/internal-abi.md#amd64-architecture
+https://github.com/golang/go/blob/go1.17.6/src/cmd/compile/internal/ssa/gen/AMD64Ops.go#L100
+*/
+#define GO_ABI_INTERNAL_PT_REGS_R1(x) ((x)->eax)
+#define GO_ABI_INTERNAL_PT_REGS_P2(x) ((x)->ecx)
+#define GO_ABI_INTERNAL_PT_REGS_P3(x) ((x)->edx)
+#define GO_ABI_INTERNAL_PT_REGS_P4(x) 0
+#define GO_ABI_INTERNAL_PT_REGS_P5(x) 0
+#define GO_ABI_INTERNAL_PT_REGS_P6(x) 0
+#define GO_ABI_INTERNAL_PT_REGS_SP(x) ((x)->esp)
+#define GO_ABI_INTERNAL_PT_REGS_FP(x) ((x)->ebp)
+#define GO_ABI_INTERNAL_PT_REGS_GP(x) ((x)->e14)
+
+#else
+
+#define GO_ABI_INTERNAL_PT_REGS_R1(x) ((x)->rax)
+#define GO_ABI_INTERNAL_PT_REGS_R2(x) ((x)->rcx)
+#define GO_ABI_INTERNAL_PT_REGS_R3(x) ((x)->rdx)
+#define GO_ABI_INTERNAL_PT_REGS_R4(x) ((x)->rbx)
+#define GO_ABI_INTERNAL_PT_REGS_R5(x) ((x)->rbp)
+#define GO_ABI_INTERNAL_PT_REGS_R6(x) ((x)->rsi)
+#define GO_ABI_INTERNAL_PT_REGS_SP(x) ((x)->rsp)
+#define GO_ABI_INTERNAL_PT_REGS_FP(x) ((x)->rbp)
+#define GO_ABI_INTERNAL_PT_REGS_GP(x) ((x)->r14)
+
+#endif
+
+#elif defined(bpf_target_arm)
+
+/*
+https://go.googlesource.com/go/+/refs/heads/master/src/cmd/compile/abi-internal.md#arm64-architecture
+https://github.com/golang/go/blob/go1.17.6/src/cmd/compile/internal/ssa/gen/ARM64Ops.go#L129-L131
+*/
+#define GO_ABI_INTERNAL_PT_REGS_R1(x) ((x)->uregs[0])
+#define GO_ABI_INTERNAL_PT_REGS_R2(x) ((x)->uregs[1])
+#define GO_ABI_INTERNAL_PT_REGS_R3(x) ((x)->uregs[2])
+#define GO_ABI_INTERNAL_PT_REGS_R4(x) ((x)->uregs[3])
+#define GO_ABI_INTERNAL_PT_REGS_R5(x) ((x)->uregs[4])
+#define GO_ABI_INTERNAL_PT_REGS_R6(x) ((x)->uregs[5])
+#define GO_ABI_INTERNAL_PT_REGS_SP(x) ((x)->uregs[14])
+#define GO_ABI_INTERNAL_PT_REGS_FP(x) ((x)->uregs[29])
+#define GO_ABI_INTERNAL_PT_REGS_GP(x) ((x)->uregs[28])
+
+#elif defined(bpf_target_arm64)
+
+/* arm64 provides struct user_pt_regs instead of struct pt_regs to userspace */
+struct pt_regs;
+#define PT_REGS_ARM64 const volatile struct user_pt_regs
+#define GO_ABI_INTERNAL_PT_REGS_R1(x) (((PT_REGS_ARM64 *)(x))->regs[0])
+#define GO_ABI_INTERNAL_PT_REGS_R2(x) (((PT_REGS_ARM64 *)(x))->regs[1])
+#define GO_ABI_INTERNAL_PT_REGS_R3(x) (((PT_REGS_ARM64 *)(x))->regs[2])
+#define GO_ABI_INTERNAL_PT_REGS_R4(x) (((PT_REGS_ARM64 *)(x))->regs[3])
+#define GO_ABI_INTERNAL_PT_REGS_R5(x) (((PT_REGS_ARM64 *)(x))->regs[4])
+#define GO_ABI_INTERNAL_PT_REGS_R6(x) (((PT_REGS_ARM64 *)(x))->regs[5])
+#define GO_ABI_INTERNAL_PT_REGS_SP(x) (((PT_REGS_ARM64 *)(x))->regs[30])
+#define GO_ABI_INTERNAL_PT_REGS_FP(x) (((PT_REGS_ARM64 *)(x))->regs[29])
+#define GO_ABI_INTERNAL_PT_REGS_GP(x) (((PT_REGS_ARM64 *)(x))->regs[28])
+
+#elif defined(bpf_target_powerpc)
+
+/*
+https://go.googlesource.com/go/+/refs/heads/master/src/cmd/compile/abi-internal.md#ppc64-architecture
+https://github.com/golang/go/blob/go1.17.6/src/cmd/compile/internal/ssa/gen/PPC64Ops.go#L125-L127
+*/
+#define GO_ABI_INTERNAL_PT_REGS_R1(x) ((x)->gpr[3])
+#define GO_ABI_INTERNAL_PT_REGS_R2(x) ((x)->gpr[4])
+#define GO_ABI_INTERNAL_PT_REGS_R3(x) ((x)->gpr[5])
+#define GO_ABI_INTERNAL_PT_REGS_R4(x) ((x)->gpr[6])
+#define GO_ABI_INTERNAL_PT_REGS_R5(x) ((x)->gpr[7])
+#define GO_ABI_INTERNAL_PT_REGS_R6(x) ((x)->gpr[8])
+#define GO_ABI_INTERNAL_PT_REGS_SP(x) ((x)->sp)
+#define GO_ABI_INTERNAL_PT_REGS_FP(x) ((x)->gpr[12])
+#define GO_ABI_INTERNAL_PT_REGS_GP(x) ((x)->gpr[30])
+
+#endif
+
+#endif /* __GO_ABI_INTERNAL__ */

tap/tlstapper/bpf/include/go_types.h

@@ -0,0 +1,15 @@
+/*
+Note: This file is licenced differently from the rest of the project
+SPDX-License-Identifier: GPL-2.0
+Copyright (C) UP9 Inc.
+*/
+
+#ifndef __GO_TYPES__
+#define __GO_TYPES__
+
+struct go_interface {
+    __s64 type;
+    void* ptr;
+};
+
+#endif /* __GO_TYPES__ */

tap/tlstapper/bpf/include/maps.h

@@ -16,11 +16,15 @@ Copyright (C) UP9 Inc.
 // One minute in nano seconds. Chosen by gut feeling.
 #define SSL_INFO_MAX_TTL_NANO (1000000000l * 60l)
 
+#define MAX_ENTRIES_HASH        (1 << 12)  // 4096
+#define MAX_ENTRIES_PERF_OUTPUT	(1 << 10)  // 1024
+#define MAX_ENTRIES_LRU_HASH	(1 << 14)  // 16384
+
 // The same struct can be found in chunk.go
 //  
 //  Be careful when editing, alignment and padding should be exactly the same in go/c.
 //
-struct tlsChunk {
+struct tls_chunk {
     __u32 pid;
     __u32 tgid;
     __u32 len;
@@ -34,6 +38,7 @@ struct tlsChunk {
 
 struct ssl_info {
     void* buffer;
+    __u32 buffer_len;
     __u32 fd;
     __u64 created_at_nano;
     
@@ -48,6 +53,16 @@ struct fd_info {
     __u8 flags;
 };
 
+// Heap-like area for eBPF programs - stack size limited to 512 bytes, we must use maps for bigger (chunk) objects.
+//
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct tls_chunk);
+} heap SEC(".maps");
+
+
 #define BPF_MAP(_name, _type, _key_type, _value_type, _max_entries)     \
     struct bpf_map_def SEC("maps") _name = {                            \
         .type = _type,                                                  \
@@ -57,19 +72,26 @@ struct fd_info {
     };
 
 #define BPF_HASH(_name, _key_type, _value_type) \
-    BPF_MAP(_name, BPF_MAP_TYPE_HASH, _key_type, _value_type, 4096)
+    BPF_MAP(_name, BPF_MAP_TYPE_HASH, _key_type, _value_type, MAX_ENTRIES_HASH)
 
 #define BPF_PERF_OUTPUT(_name) \
-    BPF_MAP(_name, BPF_MAP_TYPE_PERF_EVENT_ARRAY, int, __u32, 1024)
-    
-#define BPF_LRU_HASH(_name, _key_type, _value_type) \
-    BPF_MAP(_name, BPF_MAP_TYPE_LRU_HASH, _key_type, _value_type, 16384)
+    BPF_MAP(_name, BPF_MAP_TYPE_PERF_EVENT_ARRAY, int, __u32, MAX_ENTRIES_PERF_OUTPUT)
 
+#define BPF_LRU_HASH(_name, _key_type, _value_type) \
+    BPF_MAP(_name, BPF_MAP_TYPE_LRU_HASH, _key_type, _value_type, MAX_ENTRIES_LRU_HASH)
+
+// Generic
 BPF_HASH(pids_map, __u32, __u32);
-BPF_LRU_HASH(ssl_write_context, __u64, struct ssl_info);
-BPF_LRU_HASH(ssl_read_context, __u64, struct ssl_info);
 BPF_LRU_HASH(file_descriptor_to_ipv4, __u64, struct fd_info);
 BPF_PERF_OUTPUT(chunks_buffer);
 BPF_PERF_OUTPUT(log_buffer);
 
+// OpenSSL specific
+BPF_LRU_HASH(openssl_write_context, __u64, struct ssl_info);
+BPF_LRU_HASH(openssl_read_context, __u64, struct ssl_info);
+
+// Go specific
+BPF_LRU_HASH(go_write_context, __u64, struct ssl_info);
+BPF_LRU_HASH(go_read_context, __u64, struct ssl_info);
+
 #endif /* __MAPS__ */

tap/tlstapper/bpf/openssl_uprobes.c

@@ -10,149 +10,35 @@ Copyright (C) UP9 Inc.
 #include "include/log.h"
 #include "include/logger_messages.h"
 #include "include/pids.h"
+#include "include/common.h"
 
-// Heap-like area for eBPF programs - stack size limited to 512 bytes, we must use maps for bigger (chunk) objects.
-//
-struct {
-	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
-	__uint(max_entries, 1);
-	__type(key, int);
-	__type(value, struct tlsChunk);
-} heap SEC(".maps");
 
 static __always_inline int get_count_bytes(struct pt_regs *ctx, struct ssl_info* info, __u64 id) {
-	int returnValue = PT_REGS_RC(ctx);
-	
-	if (info->count_ptr == NULL) {
-		// ssl_read and ssl_write return the number of bytes written/read
-		//
-		return returnValue;
-	}
-	
-	// ssl_read_ex and ssl_write_ex return 1 for success
-	//
-	if (returnValue != 1) {
-		return 0;
-	}
-	
-	// ssl_read_ex and ssl_write_ex write the number of bytes to an arg named *count
-	//
-	size_t countBytes;
-	long err = bpf_probe_read(&countBytes, sizeof(size_t), (void*) info->count_ptr);
-	
-	if (err != 0) {
-		log_error(ctx, LOG_ERROR_READING_BYTES_COUNT, id, err, 0l);
-		return 0;
-	}
-	
-	return countBytes;
-}
+    int returnValue = PT_REGS_RC(ctx);
 
-static __always_inline int add_address_to_chunk(struct pt_regs *ctx, struct tlsChunk* chunk, __u64 id, __u32 fd) {
-	__u32 pid = id >> 32;
-	__u64 key = (__u64) pid << 32 | fd;
-	
-	struct fd_info *fdinfo = bpf_map_lookup_elem(&file_descriptor_to_ipv4, &key);
-	
-	if (fdinfo == NULL) {
-		return 0;
-	}
-	
-	int err = bpf_probe_read(chunk->address, sizeof(chunk->address), fdinfo->ipv4_addr);
-	chunk->flags |= (fdinfo->flags & FLAGS_IS_CLIENT_BIT);
-	
-	if (err != 0) {
-		log_error(ctx, LOG_ERROR_READING_FD_ADDRESS, id, err, 0l);
-		return 0;
-	}
-	
-	return 1;
-}
+    if (info->count_ptr == NULL) {
+        // ssl_read and ssl_write return the number of bytes written/read
+        //
+        return returnValue;
+    }
 
-static __always_inline void send_chunk_part(struct pt_regs *ctx, __u8* buffer, __u64 id, 
-	struct tlsChunk* chunk, int start, int end) {
-	size_t recorded = MIN(end - start, sizeof(chunk->data));
-	
-	if (recorded <= 0) {
-		return;
-	}
-	
-	chunk->recorded = recorded;
-	chunk->start = start;
-	
-	// This ugly trick is for the ebpf verifier happiness
-	//
-	long err = 0;
-	if (chunk->recorded == sizeof(chunk->data)) {
-		err = bpf_probe_read(chunk->data, sizeof(chunk->data), buffer + start);
-	} else {
-		recorded &= (sizeof(chunk->data) - 1); // Buffer must be N^2
-		err = bpf_probe_read(chunk->data, recorded, buffer + start);
-	}
-	
-	if (err != 0) {
-		log_error(ctx, LOG_ERROR_READING_FROM_SSL_BUFFER, id, err, 0l);
-		return;
-	}
-	
-	bpf_perf_event_output(ctx, &chunks_buffer, BPF_F_CURRENT_CPU, chunk, sizeof(struct tlsChunk));
-}
+    // ssl_read_ex and ssl_write_ex return 1 for success
+    //
+    if (returnValue != 1) {
+        return 0;
+    }
 
-static __always_inline void send_chunk(struct pt_regs *ctx, __u8* buffer, __u64 id, struct tlsChunk* chunk) {
-	// ebpf loops must be bounded at compile time, we can't use (i < chunk->len / CHUNK_SIZE)
-	//
-	// 	https://lwn.net/Articles/794934/
-	// 
-	// However we want to run in kernel older than 5.3, hence we use "#pragma unroll" anyway
-	// 
-	#pragma unroll
-	for (int i = 0; i < MAX_CHUNKS_PER_OPERATION; i++) {
-		if (chunk->len <= (CHUNK_SIZE * i)) {
-			break;
-		}
-		
-		send_chunk_part(ctx, buffer, id, chunk, CHUNK_SIZE * i, chunk->len);
-	}
-}
+    // ssl_read_ex and ssl_write_ex write the number of bytes to an arg named *count
+    //
+    size_t countBytes;
+    long err = bpf_probe_read(&countBytes, sizeof(size_t), (void*) info->count_ptr);
 
-static __always_inline void output_ssl_chunk(struct pt_regs *ctx, struct ssl_info* info, __u64 id, __u32 flags) {
-	int countBytes = get_count_bytes(ctx, info, id);
-	
-	if (countBytes <= 0) {
-		return;
-	}
-	
-	if (countBytes > (CHUNK_SIZE * MAX_CHUNKS_PER_OPERATION)) {
-		log_error(ctx, LOG_ERROR_BUFFER_TOO_BIG, id, countBytes, 0l);
-		return;
-	}
-	
-	struct tlsChunk* chunk;
-	int zero = 0;
-	
-	// If other thread, running on the same CPU get to this point at the same time like us (context switch)
-	//	the data will be corrupted - protection may be added in the future
-	//
-	chunk = bpf_map_lookup_elem(&heap, &zero);
-	
-	if (!chunk) {
-		log_error(ctx, LOG_ERROR_ALLOCATING_CHUNK, id, 0l, 0l);
-		return;
-	}
-	
-	chunk->flags = flags;
-	chunk->pid = id >> 32;
-	chunk->tgid = id;
-	chunk->len = countBytes;
-	chunk->fd = info->fd;
-	
-	if (!add_address_to_chunk(ctx, chunk, id, chunk->fd)) {
-		// Without an address, we drop the chunk because there is not much to do with it in Go
-		//
-		return;
-	}
-	
-	send_chunk(ctx, info->buffer, id, chunk);
+    if (err != 0) {
+        log_error(ctx, LOG_ERROR_READING_BYTES_COUNT, id, err, 0l);
+        return 0;
+    }
+
+    return countBytes;
 }
 
 static __always_inline void ssl_uprobe(struct pt_regs *ctx, void* ssl, void* buffer, int num, struct bpf_map_def* map_fd, size_t *count_ptr) {
@@ -163,25 +49,7 @@ static __always_inline void ssl_uprobe(struct pt_regs *ctx, void* ssl, void* buf
 	}
 	
 	struct ssl_info *infoPtr = bpf_map_lookup_elem(map_fd, &id);
-	struct ssl_info info = {};
-	
-	if (infoPtr == NULL) {
-		info.fd = -1;
-		info.created_at_nano = bpf_ktime_get_ns();
-	} else {
-		long err = bpf_probe_read(&info, sizeof(struct ssl_info), infoPtr);
-		
-		if (err != 0) {
-			log_error(ctx, LOG_ERROR_READING_SSL_CONTEXT, id, err, ORIGIN_SSL_UPROBE_CODE);
-		}
-		
-		if ((bpf_ktime_get_ns() - info.created_at_nano) > SSL_INFO_MAX_TTL_NANO) {
-			// If the ssl info is too old, we don't want to use its info because it may be incorrect.
-			//
-			info.fd = -1;
-			info.created_at_nano = bpf_ktime_get_ns();
-		}
-	}
+	struct ssl_info info = lookup_ssl_info(ctx, &openssl_write_context, id);
 	
 	info.count_ptr = count_ptr;
 	info.buffer = buffer;
@@ -227,50 +95,55 @@ static __always_inline void ssl_uretprobe(struct pt_regs *ctx, struct bpf_map_de
 		return;
 	}
 	
-	if (info.fd == -1) {
+	if (info.fd == invalid_fd) {
 		log_error(ctx, LOG_ERROR_MISSING_FILE_DESCRIPTOR, id, 0l, 0l);
 		return;
 	}
-	
-	output_ssl_chunk(ctx, &info, id, flags);
+
+    int count_bytes = get_count_bytes(ctx, &info, id);
+    if (count_bytes <= 0) {
+        return;
+    }
+
+	output_ssl_chunk(ctx, &info, count_bytes, id, flags);
 }
 
 SEC("uprobe/ssl_write")
 void BPF_KPROBE(ssl_write, void* ssl, void* buffer, int num) {
-	ssl_uprobe(ctx, ssl, buffer, num, &ssl_write_context, 0);
+	ssl_uprobe(ctx, ssl, buffer, num, &openssl_write_context, 0);
 }
 
 SEC("uretprobe/ssl_write")
 void BPF_KPROBE(ssl_ret_write) {
-	ssl_uretprobe(ctx, &ssl_write_context, 0);
+	ssl_uretprobe(ctx, &openssl_write_context, 0);
 }
 
 SEC("uprobe/ssl_read")
 void BPF_KPROBE(ssl_read, void* ssl, void* buffer, int num) {
-	ssl_uprobe(ctx, ssl, buffer, num, &ssl_read_context, 0);
+	ssl_uprobe(ctx, ssl, buffer, num, &openssl_read_context, 0);
 }
 
 SEC("uretprobe/ssl_read")
 void BPF_KPROBE(ssl_ret_read) {
-	ssl_uretprobe(ctx, &ssl_read_context, FLAGS_IS_READ_BIT);
+	ssl_uretprobe(ctx, &openssl_read_context, FLAGS_IS_READ_BIT);
 }
 
 SEC("uprobe/ssl_write_ex")
 void BPF_KPROBE(ssl_write_ex, void* ssl, void* buffer, size_t num, size_t *written) {
-	ssl_uprobe(ctx, ssl, buffer, num, &ssl_write_context, written);
+	ssl_uprobe(ctx, ssl, buffer, num, &openssl_write_context, written);
 }
 
 SEC("uretprobe/ssl_write_ex")
 void BPF_KPROBE(ssl_ret_write_ex) {
-	ssl_uretprobe(ctx, &ssl_write_context, 0);
+	ssl_uretprobe(ctx, &openssl_write_context, 0);
 }
 
 SEC("uprobe/ssl_read_ex")
 void BPF_KPROBE(ssl_read_ex, void* ssl, void* buffer, size_t num, size_t *readbytes) {
-	ssl_uprobe(ctx, ssl, buffer, num, &ssl_read_context, readbytes);
+	ssl_uprobe(ctx, ssl, buffer, num, &openssl_read_context, readbytes);
 }
 
 SEC("uretprobe/ssl_read_ex")
 void BPF_KPROBE(ssl_ret_read_ex) {
-	ssl_uretprobe(ctx, &ssl_read_context, FLAGS_IS_READ_BIT);
+	ssl_uretprobe(ctx, &openssl_read_context, FLAGS_IS_READ_BIT);
 }

tap/tlstapper/bpf/tls_tapper.c

@@ -13,7 +13,9 @@ Copyright (C) UP9 Inc.
 
 // To avoid multiple .o files
 //
+#include "common.c"
 #include "openssl_uprobes.c"
+#include "go_uprobes.c"
 #include "fd_tracepoints.c"
 #include "fd_to_address_tracepoints.c"
 

tap/tlstapper/bpf_logger_messages.go

@@ -2,7 +2,7 @@ package tlstapper
 
 // Must be synced with logger_messages.h
 //
-var bpfLogMessages = []string {
+var bpfLogMessages = []string{
 	/*0000*/ "[%d] Unable to read bytes count from _ex methods [err: %d]",
 	/*0001*/ "[%d] Unable to read ipv4 address [err: %d]",
 	/*0002*/ "[%d] Unable to read ssl buffer [err: %d]",
@@ -20,6 +20,4 @@ var bpfLogMessages = []string {
 	/*0014*/ "[%d] Unable to put connect info [err: %d]",
 	/*0015*/ "[%d] Unable to get connect info",
 	/*0016*/ "[%d] Unable to read connect info [err: %d]",
-	
 }
-

tap/tlstapper/chunk.go

@@ -9,26 +9,10 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-const FLAGS_IS_CLIENT_BIT uint32 = (1 << 0)
-const FLAGS_IS_READ_BIT uint32 = (1 << 1)
+const FlagsIsClientBit uint32 = 1 << 0
+const FlagsIsReadBit uint32 = 1 << 1
 
-// The same struct can be found in maps.h
-//
-//	Be careful when editing, alignment and padding should be exactly the same in go/c.
-//
-type tlsChunk struct {
-	Pid      uint32     // process id
-	Tgid     uint32     // thread id inside the process
-	Len      uint32     // the size of the native buffer used to read/write the tls data (may be bigger than tlsChunk.Data[])
-	Start    uint32     // the start offset withing the native buffer
-	Recorded uint32     // number of bytes copied from the native buffer to tlsChunk.Data[]
-	Fd       uint32     // the file descriptor used to read/write the tls data (probably socket file descriptor)
-	Flags    uint32     // bitwise flags
-	Address  [16]byte   // ipv4 address and port
-	Data     [4096]byte // actual tls data
-}
-
-func (c *tlsChunk) getAddress() (net.IP, uint16, error) {
+func (c *tlsTapperTlsChunk) getAddress() (net.IP, uint16, error) {
 	address := bytes.NewReader(c.Address[:])
 	var family uint16
 	var port uint16
@@ -51,31 +35,31 @@ func (c *tlsChunk) getAddress() (net.IP, uint16, error) {
 	return ip, port, nil
 }
 
-func (c *tlsChunk) isClient() bool {
-	return c.Flags&FLAGS_IS_CLIENT_BIT != 0
+func (c *tlsTapperTlsChunk) isClient() bool {
+	return c.Flags&FlagsIsClientBit != 0
 }
 
-func (c *tlsChunk) isServer() bool {
+func (c *tlsTapperTlsChunk) isServer() bool {
 	return !c.isClient()
 }
 
-func (c *tlsChunk) isRead() bool {
-	return c.Flags&FLAGS_IS_READ_BIT != 0
+func (c *tlsTapperTlsChunk) isRead() bool {
+	return c.Flags&FlagsIsReadBit != 0
 }
 
-func (c *tlsChunk) isWrite() bool {
+func (c *tlsTapperTlsChunk) isWrite() bool {
 	return !c.isRead()
 }
 
-func (c *tlsChunk) getRecordedData() []byte {
+func (c *tlsTapperTlsChunk) getRecordedData() []byte {
 	return c.Data[:c.Recorded]
 }
 
-func (c *tlsChunk) isRequest() bool {
+func (c *tlsTapperTlsChunk) isRequest() bool {
 	return (c.isClient() && c.isWrite()) || (c.isServer() && c.isRead())
 }
 
-func (c *tlsChunk) getAddressPair() (addressPair, error) {
+func (c *tlsTapperTlsChunk) getAddressPair() (addressPair, error) {
 	ip, port, err := c.getAddress()
 
 	if err != nil {

tap/tlstapper/go_hooks.go

@@ -0,0 +1,105 @@
+package tlstapper
+
+import (
+	"github.com/cilium/ebpf/link"
+	"github.com/go-errors/errors"
+)
+
+type goHooks struct {
+	goWriteProbe    link.Link
+	goWriteExProbes []link.Link
+	goReadProbe     link.Link
+	goReadExProbes  []link.Link
+}
+
+func (s *goHooks) installUprobes(bpfObjects *tlsTapperObjects, filePath string) error {
+	ex, err := link.OpenExecutable(filePath)
+
+	if err != nil {
+		return errors.Wrap(err, 0)
+	}
+
+	offsets, err := findGoOffsets(filePath)
+
+	if err != nil {
+		return errors.Wrap(err, 0)
+	}
+
+	return s.installHooks(bpfObjects, ex, offsets)
+}
+
+func (s *goHooks) installHooks(bpfObjects *tlsTapperObjects, ex *link.Executable, offsets goOffsets) error {
+	var err error
+
+	// Symbol points to
+	// [`crypto/tls.(*Conn).Write`](https://github.com/golang/go/blob/go1.17.6/src/crypto/tls/conn.go#L1099)
+	s.goWriteProbe, err = ex.Uprobe(goWriteSymbol, bpfObjects.GoCryptoTlsWrite, &link.UprobeOptions{
+		Offset: offsets.GoWriteOffset.enter,
+	})
+
+	if err != nil {
+		return errors.Wrap(err, 0)
+	}
+
+	for _, offset := range offsets.GoWriteOffset.exits {
+		probe, err := ex.Uprobe(goWriteSymbol, bpfObjects.GoCryptoTlsWriteEx, &link.UprobeOptions{
+			Offset: offset,
+		})
+
+		if err != nil {
+			return errors.Wrap(err, 0)
+		}
+
+		s.goWriteExProbes = append(s.goWriteExProbes, probe)
+	}
+
+	// Symbol points to
+	// [`crypto/tls.(*Conn).Read`](https://github.com/golang/go/blob/go1.17.6/src/crypto/tls/conn.go#L1263)
+	s.goReadProbe, err = ex.Uprobe(goReadSymbol, bpfObjects.GoCryptoTlsRead, &link.UprobeOptions{
+		Offset: offsets.GoReadOffset.enter,
+	})
+
+	if err != nil {
+		return errors.Wrap(err, 0)
+	}
+
+	for _, offset := range offsets.GoReadOffset.exits {
+		probe, err := ex.Uprobe(goReadSymbol, bpfObjects.GoCryptoTlsReadEx, &link.UprobeOptions{
+			Offset: offset,
+		})
+
+		if err != nil {
+			return errors.Wrap(err, 0)
+		}
+
+		s.goReadExProbes = append(s.goReadExProbes, probe)
+	}
+
+	return nil
+}
+
+func (s *goHooks) close() []error {
+	errors := make([]error, 0)
+
+	if err := s.goWriteProbe.Close(); err != nil {
+		errors = append(errors, err)
+	}
+
+	for _, probe := range s.goWriteExProbes {
+		if err := probe.Close(); err != nil {
+			errors = append(errors, err)
+		}
+	}
+
+	if err := s.goReadProbe.Close(); err != nil {
+		errors = append(errors, err)
+	}
+
+	for _, probe := range s.goReadExProbes {
+		if err := probe.Close(); err != nil {
+			errors = append(errors, err)
+		}
+	}
+
+	return errors
+}

tap/tlstapper/go_offsets.go

@@ -0,0 +1,228 @@
+package tlstapper
+
+import (
+	"bufio"
+	"debug/elf"
+	"fmt"
+	"os"
+	"runtime"
+
+	"github.com/Masterminds/semver"
+	"github.com/cilium/ebpf/link"
+	"github.com/knightsc/gapstone"
+	"github.com/up9inc/mizu/logger"
+)
+
+type goOffsets struct {
+	GoWriteOffset *goExtendedOffset
+	GoReadOffset  *goExtendedOffset
+}
+
+type goExtendedOffset struct {
+	enter uint64
+	exits []uint64
+}
+
+const (
+	minimumSupportedGoVersion = "1.17.0"
+	goVersionSymbol           = "runtime.buildVersion.str"
+	goWriteSymbol             = "crypto/tls.(*Conn).Write"
+	goReadSymbol              = "crypto/tls.(*Conn).Read"
+)
+
+func findGoOffsets(filePath string) (goOffsets, error) {
+	offsets, err := getOffsets(filePath)
+	if err != nil {
+		return goOffsets{}, err
+	}
+
+	goVersionOffset, err := getOffset(offsets, goVersionSymbol)
+	if err != nil {
+		return goOffsets{}, err
+	}
+
+	passed, goVersion, err := checkGoVersion(filePath, goVersionOffset)
+	if err != nil {
+		return goOffsets{}, fmt.Errorf("Checking Go version: %s", err)
+	}
+
+	if !passed {
+		return goOffsets{}, fmt.Errorf("Unsupported Go version: %s", goVersion)
+	}
+
+	writeOffset, err := getOffset(offsets, goWriteSymbol)
+	if err != nil {
+		return goOffsets{}, fmt.Errorf("reading offset [%s]: %s", goWriteSymbol, err)
+	}
+
+	readOffset, err := getOffset(offsets, goReadSymbol)
+	if err != nil {
+		return goOffsets{}, fmt.Errorf("reading offset [%s]: %s", goReadSymbol, err)
+	}
+
+	return goOffsets{
+		GoWriteOffset: writeOffset,
+		GoReadOffset:  readOffset,
+	}, nil
+}
+
+func getOffsets(filePath string) (offsets map[string]*goExtendedOffset, err error) {
+	var engine gapstone.Engine
+	switch runtime.GOARCH {
+	case "amd64":
+		engine, err = gapstone.New(
+			gapstone.CS_ARCH_X86,
+			gapstone.CS_MODE_64,
+		)
+	case "arm64":
+		engine, err = gapstone.New(
+			gapstone.CS_ARCH_ARM64,
+			gapstone.CS_MODE_ARM,
+		)
+	default:
+		err = fmt.Errorf("Unsupported architecture: %v", runtime.GOARCH)
+	}
+	if err != nil {
+		return
+	}
+
+	offsets = make(map[string]*goExtendedOffset)
+	var fd *os.File
+	fd, err = os.Open(filePath)
+	if err != nil {
+		return
+	}
+	defer fd.Close()
+
+	var se *elf.File
+	se, err = elf.NewFile(fd)
+	if err != nil {
+		return
+	}
+
+	textSection := se.Section(".text")
+	if textSection == nil {
+		err = fmt.Errorf("No text section")
+		return
+	}
+
+	// extract the raw bytes from the .text section
+	var textSectionData []byte
+	textSectionData, err = textSection.Data()
+	if err != nil {
+		return
+	}
+
+	var syms []elf.Symbol
+	syms, err = se.Symbols()
+	if err != nil {
+		return
+	}
+	for _, sym := range syms {
+		offset := sym.Value
+
+		var lastProg *elf.Prog
+		for _, prog := range se.Progs {
+			if prog.Vaddr <= sym.Value && sym.Value < (prog.Vaddr+prog.Memsz) {
+				offset = sym.Value - prog.Vaddr + prog.Off
+				lastProg = prog
+				break
+			}
+		}
+
+		extendedOffset := &goExtendedOffset{enter: offset}
+
+		// source: https://gist.github.com/grantseltzer/3efa8ecc5de1fb566e8091533050d608
+		// skip over any symbols that aren't functinons/methods
+		if sym.Info != byte(2) && sym.Info != byte(18) {
+			offsets[sym.Name] = extendedOffset
+			continue
+		}
+
+		// skip over empty symbols
+		if sym.Size == 0 {
+			offsets[sym.Name] = extendedOffset
+			continue
+		}
+
+		// calculate starting and ending index of the symbol within the text section
+		symStartingIndex := sym.Value - textSection.Addr
+		symEndingIndex := symStartingIndex + sym.Size
+
+		// collect the bytes of the symbol
+		textSectionDataLen := uint64(len(textSectionData) - 1)
+		if symEndingIndex > textSectionDataLen {
+			logger.Log.Warningf(
+				"Skipping symbol %v, ending index %v is bigger than text section data length %v",
+				sym.Name,
+				symEndingIndex,
+				textSectionDataLen,
+			)
+			continue
+		}
+		symBytes := textSectionData[symStartingIndex:symEndingIndex]
+
+		// disassemble the symbol
+		var instructions []gapstone.Instruction
+		instructions, err = engine.Disasm(symBytes, sym.Value, 0)
+		if err != nil {
+			return
+		}
+
+		// iterate over each instruction and if the mnemonic is `ret` then that's an exit offset
+		for _, ins := range instructions {
+			if ins.Mnemonic == "ret" {
+				extendedOffset.exits = append(extendedOffset.exits, uint64(ins.Address)-lastProg.Vaddr+lastProg.Off)
+			}
+		}
+
+		offsets[sym.Name] = extendedOffset
+	}
+
+	return
+}
+
+func getOffset(offsets map[string]*goExtendedOffset, symbol string) (*goExtendedOffset, error) {
+	if offset, ok := offsets[symbol]; ok {
+		return offset, nil
+	}
+	return nil, fmt.Errorf("symbol %s: %w", symbol, link.ErrNoSymbol)
+}
+
+func checkGoVersion(filePath string, offset *goExtendedOffset) (bool, string, error) {
+	fd, err := os.Open(filePath)
+	if err != nil {
+		return false, "", err
+	}
+	defer fd.Close()
+
+	reader := bufio.NewReader(fd)
+
+	_, err = reader.Discard(int(offset.enter))
+	if err != nil {
+		return false, "", err
+	}
+
+	line, err := reader.ReadString(0)
+	if err != nil {
+		return false, "", err
+	}
+
+	if len(line) < 3 {
+		return false, "", fmt.Errorf("ELF data segment read error (corrupted result)")
+	}
+
+	goVersionStr := line[2 : len(line)-1]
+
+	goVersion, err := semver.NewVersion(goVersionStr)
+	if err != nil {
+		return false, goVersionStr, err
+	}
+
+	goVersionConstraint, err := semver.NewConstraint(fmt.Sprintf(">= %s", minimumSupportedGoVersion))
+	if err != nil {
+		return false, goVersionStr, err
+	}
+
+	return goVersionConstraint.Check(goVersion), goVersionStr, nil
+}

tap/tlstapper/ssllib_finder.go

@@ -46,7 +46,7 @@ func findLibraryByPid(procfs string, pid uint32, libraryName string) (string, er
 
 		filepath := parts[5]
 
-		if !strings.Contains(filepath, libraryName) {
+		if libraryName != "" && !strings.Contains(filepath, libraryName) {
 			continue
 		}
 

tap/tlstapper/ssllib_hooks.go

@@ -107,47 +107,47 @@ func (s *sslHooks) installSslHooks(bpfObjects *tlsTapperObjects, sslLibrary *lin
 }
 
 func (s *sslHooks) close() []error {
-	errors := make([]error, 0)
+	returnValue := make([]error, 0)
 
 	if err := s.sslWriteProbe.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sslWriteRetProbe.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sslReadProbe.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sslReadRetProbe.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if s.sslWriteExProbe != nil {
 		if err := s.sslWriteExProbe.Close(); err != nil {
-			errors = append(errors, err)
+			returnValue = append(returnValue, err)
 		}
 	}
 
 	if s.sslWriteExRetProbe != nil {
 		if err := s.sslWriteExRetProbe.Close(); err != nil {
-			errors = append(errors, err)
+			returnValue = append(returnValue, err)
 		}
 	}
 
 	if s.sslReadExProbe != nil {
 		if err := s.sslReadExProbe.Close(); err != nil {
-			errors = append(errors, err)
+			returnValue = append(returnValue, err)
 		}
 	}
 
 	if s.sslReadExRetProbe != nil {
 		if err := s.sslReadExRetProbe.Close(); err != nil {
-			errors = append(errors, err)
+			returnValue = append(returnValue, err)
 		}
 	}
 
-	return errors
+	return returnValue
 }

tap/tlstapper/syscall_hooks.go

@@ -57,31 +57,31 @@ func (s *syscallHooks) installSyscallHooks(bpfObjects *tlsTapperObjects) error {
 }
 
 func (s *syscallHooks) close() []error {
-	errors := make([]error, 0)
+	returnValue := make([]error, 0)
 
 	if err := s.sysEnterRead.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sysEnterWrite.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sysEnterAccept4.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sysExitAccept4.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sysEnterConnect.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := s.sysExitConnect.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
-	return errors
+	return returnValue
 }

tap/tlstapper/tls_poller.go

@@ -20,8 +20,10 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-const fdCachedItemAvgSize = 40
-const fdCacheMaxItems = 500000 / fdCachedItemAvgSize
+const (
+	fdCachedItemAvgSize = 40
+	fdCacheMaxItems     = 500000 / fdCachedItemAvgSize
+)
 
 type tlsPoller struct {
 	tls            *TlsTapper
@@ -32,7 +34,7 @@ type tlsPoller struct {
 	extension      *api.Extension
 	procfs         string
 	pidToNamespace sync.Map
-	fdCache        *simplelru.LRU // Actual typs is map[string]addressPair
+	fdCache        *simplelru.LRU // Actual type is map[string]addressPair
 	evictedCounter int
 }
 
@@ -74,7 +76,8 @@ func (p *tlsPoller) close() error {
 }
 
 func (p *tlsPoller) poll(emitter api.Emitter, options *api.TrafficFilteringOptions, streamsMap api.TcpStreamMap) {
-	chunks := make(chan *tlsChunk)
+	// tlsTapperTlsChunk is generated by bpf2go.
+	chunks := make(chan *tlsTapperTlsChunk)
 
 	go p.pollChunksPerfBuffer(chunks)
 
@@ -94,7 +97,7 @@ func (p *tlsPoller) poll(emitter api.Emitter, options *api.TrafficFilteringOptio
 	}
 }
 
-func (p *tlsPoller) pollChunksPerfBuffer(chunks chan<- *tlsChunk) {
+func (p *tlsPoller) pollChunksPerfBuffer(chunks chan<- *tlsTapperTlsChunk) {
 	logger.Log.Infof("Start polling for tls events")
 
 	for {
@@ -118,7 +121,7 @@ func (p *tlsPoller) pollChunksPerfBuffer(chunks chan<- *tlsChunk) {
 
 		buffer := bytes.NewReader(record.RawSample)
 
-		var chunk tlsChunk
+		var chunk tlsTapperTlsChunk
 
 		if err := binary.Read(buffer, binary.LittleEndian, &chunk); err != nil {
 			LogError(errors.Errorf("Error parsing chunk %v", err))
@@ -129,7 +132,7 @@ func (p *tlsPoller) pollChunksPerfBuffer(chunks chan<- *tlsChunk) {
 	}
 }
 
-func (p *tlsPoller) handleTlsChunk(chunk *tlsChunk, extension *api.Extension, emitter api.Emitter,
+func (p *tlsPoller) handleTlsChunk(chunk *tlsTapperTlsChunk, extension *api.Extension, emitter api.Emitter,
 	options *api.TrafficFilteringOptions, streamsMap api.TcpStreamMap) error {
 	address, err := p.getSockfdAddressPair(chunk)
 
@@ -158,11 +161,11 @@ func (p *tlsPoller) handleTlsChunk(chunk *tlsChunk, extension *api.Extension, em
 	return nil
 }
 
-func (p *tlsPoller) startNewTlsReader(chunk *tlsChunk, address *addressPair, key string,
+func (p *tlsPoller) startNewTlsReader(chunk *tlsTapperTlsChunk, address *addressPair, key string,
 	emitter api.Emitter, extension *api.Extension, options *api.TrafficFilteringOptions,
 	streamsMap api.TcpStreamMap) *tlsReader {
 
-	tcpid := p.buildTcpId(chunk, address)
+	tcpid := p.buildTcpId(address)
 
 	doneHandler := func(r *tlsReader) {
 		p.closeReader(key, r)
@@ -175,7 +178,7 @@ func (p *tlsPoller) startNewTlsReader(chunk *tlsChunk, address *addressPair, key
 
 	reader := &tlsReader{
 		key:           key,
-		chunks:        make(chan *tlsChunk, 1),
+		chunks:        make(chan *tlsTapperTlsChunk, 1),
 		doneHandler:   doneHandler,
 		progress:      &api.ReadProgress{},
 		tcpID:         &tcpid,
@@ -198,7 +201,7 @@ func (p *tlsPoller) startNewTlsReader(chunk *tlsChunk, address *addressPair, key
 	return reader
 }
 
-func dissect(extension *api.Extension, reader *tlsReader, options *api.TrafficFilteringOptions) {
+func dissect(extension *api.Extension, reader api.TcpReader, options *api.TrafficFilteringOptions) {
 	b := bufio.NewReader(reader)
 
 	err := extension.Dissector.Dissect(b, reader, options)
@@ -213,7 +216,7 @@ func (p *tlsPoller) closeReader(key string, r *tlsReader) {
 	p.closedReaders <- key
 }
 
-func (p *tlsPoller) getSockfdAddressPair(chunk *tlsChunk) (addressPair, error) {
+func (p *tlsPoller) getSockfdAddressPair(chunk *tlsTapperTlsChunk) (addressPair, error) {
 	address, err := getAddressBySockfd(p.procfs, chunk.Pid, chunk.Fd)
 	fdCacheKey := fmt.Sprintf("%d:%d", chunk.Pid, chunk.Fd)
 
@@ -252,7 +255,7 @@ func buildTlsKey(address addressPair) string {
 	return fmt.Sprintf("%s:%d>%s:%d", address.srcIp, address.srcPort, address.dstIp, address.dstPort)
 }
 
-func (p *tlsPoller) buildTcpId(chunk *tlsChunk, address *addressPair) api.TcpID {
+func (p *tlsPoller) buildTcpId(address *addressPair) api.TcpID {
 	return api.TcpID{
 		SrcIP:   address.srcIp.String(),
 		DstIP:   address.dstIp.String(),
@@ -270,13 +273,13 @@ func (p *tlsPoller) getNamespace(pid uint32) string {
 	namespaceIfc, ok := p.pidToNamespace.Load(pid)
 
 	if !ok {
-		return api.UNKNOWN_NAMESPACE
+		return api.UnknownNamespace
 	}
 
 	namespace, ok := namespaceIfc.(string)
 
 	if !ok {
-		return api.UNKNOWN_NAMESPACE
+		return api.UnknownNamespace
 	}
 
 	return namespace
@@ -289,7 +292,7 @@ func (p *tlsPoller) clearPids() {
 	})
 }
 
-func (p *tlsPoller) logTls(chunk *tlsChunk, key string, reader *tlsReader) {
+func (p *tlsPoller) logTls(chunk *tlsTapperTlsChunk, key string, reader *tlsReader) {
 	var flagsStr string
 
 	if chunk.isClient() {

tap/tlstapper/tls_process_discoverer.go

@@ -28,7 +28,11 @@ func UpdateTapTargets(tls *TlsTapper, pods *[]v1.Pod, procfs string) error {
 	tls.ClearPids()
 
 	for pid, pod := range containerPids {
-		if err := tls.AddPid(procfs, pid, pod.Namespace); err != nil {
+		if err := tls.AddSSLLibPid(procfs, pid, pod.Namespace); err != nil {
+			LogError(err)
+		}
+
+		if err := tls.AddGoPid(procfs, pid, pod.Namespace); err != nil {
 			LogError(err)
 		}
 	}
@@ -86,14 +90,14 @@ func buildContainerIdsMap(pods *[]v1.Pod) map[string]v1.Pod {
 
 	for _, pod := range *pods {
 		for _, container := range pod.Status.ContainerStatuses {
-			url, err := url.Parse(container.ContainerID)
+			parsedUrl, err := url.Parse(container.ContainerID)
 
 			if err != nil {
 				logger.Log.Warningf("Expecting URL like container ID %v", container.ContainerID)
 				continue
 			}
 
-			result[url.Host] = pod
+			result[parsedUrl.Host] = pod
 		}
 	}
 

tap/tlstapper/tls_reader.go

@@ -9,7 +9,7 @@ import (
 
 type tlsReader struct {
 	key           string
-	chunks        chan *tlsChunk
+	chunks        chan *tlsTapperTlsChunk
 	seenChunks    int
 	data          []byte
 	doneHandler   func(r *tlsReader)
@@ -24,14 +24,14 @@ type tlsReader struct {
 	reqResMatcher api.RequestResponseMatcher
 }
 
-func (r *tlsReader) newChunk(chunk *tlsChunk) {
+func (r *tlsReader) newChunk(chunk *tlsTapperTlsChunk) {
 	r.captureTime = time.Now()
 	r.seenChunks = r.seenChunks + 1
 	r.chunks <- chunk
 }
 
 func (r *tlsReader) Read(p []byte) (int, error) {
-	var chunk *tlsChunk
+	var chunk *tlsTapperTlsChunk
 
 	for len(r.data) == 0 {
 		var ok bool
@@ -42,7 +42,7 @@ func (r *tlsReader) Read(p []byte) (int, error) {
 			}
 
 			r.data = chunk.getRecordedData()
-		case <-time.After(time.Second * 3):
+		case <-time.After(time.Second * 120):
 			r.doneHandler(r)
 			return 0, io.EOF
 		}

tap/tlstapper/tls_tapper.go

@@ -1,6 +1,7 @@
 package tlstapper
 
 import (
+	"strconv"
 	"sync"
 
 	"github.com/cilium/ebpf/rlimit"
@@ -9,14 +10,15 @@ import (
 	"github.com/up9inc/mizu/tap/api"
 )
 
-const GLOABL_TAP_PID = 0
+const GlobalTapPid = 0
 
-//go:generate go run github.com/cilium/ebpf/cmd/bpf2go tlsTapper bpf/tls_tapper.c -- -O2 -g -D__TARGET_ARCH_x86
+//go:generate go run github.com/cilium/ebpf/cmd/bpf2go@0d0727ef53e2f53b1731c73f4c61e0f58693083a -target $BPF_TARGET -cflags $BPF_CFLAGS -type tls_chunk tlsTapper bpf/tls_tapper.c
 
 type TlsTapper struct {
 	bpfObjects      tlsTapperObjects
 	syscallHooks    syscallHooks
 	sslHooksStructs []sslHooks
+	goHooksStructs  []goHooks
 	poller          *tlsPoller
 	bpfLogger       *bpfLogger
 	registeredPids  sync.Map
@@ -64,19 +66,32 @@ func (t *TlsTapper) PollForLogging() {
 	t.bpfLogger.poll()
 }
 
-func (t *TlsTapper) GlobalTap(sslLibrary string) error {
-	return t.tapPid(GLOABL_TAP_PID, sslLibrary, api.UNKNOWN_NAMESPACE)
+func (t *TlsTapper) GlobalSSLLibTap(sslLibrary string) error {
+	return t.tapSSLLibPid(GlobalTapPid, sslLibrary, api.UnknownNamespace)
 }
 
-func (t *TlsTapper) AddPid(procfs string, pid uint32, namespace string) error {
+func (t *TlsTapper) GlobalGoTap(procfs string, pid string) error {
+	_pid, err := strconv.Atoi(pid)
+	if err != nil {
+		return err
+	}
+
+	return t.tapGoPid(procfs, uint32(_pid), api.UnknownNamespace)
+}
+
+func (t *TlsTapper) AddSSLLibPid(procfs string, pid uint32, namespace string) error {
 	sslLibrary, err := findSsllib(procfs, pid)
 
 	if err != nil {
 		logger.Log.Infof("PID skipped no libssl.so found (pid: %d) %v", pid, err)
-		return nil // hide the error on purpose, its OK for a process to not use libssl.so
+		return nil // hide the error on purpose, it's OK for a process to not use libssl.so
 	}
 
-	return t.tapPid(pid, sslLibrary, namespace)
+	return t.tapSSLLibPid(pid, sslLibrary, namespace)
+}
+
+func (t *TlsTapper) AddGoPid(procfs string, pid uint32, namespace string) error {
+	return t.tapGoPid(procfs, pid, namespace)
 }
 
 func (t *TlsTapper) RemovePid(pid uint32) error {
@@ -95,7 +110,7 @@ func (t *TlsTapper) ClearPids() {
 	t.poller.clearPids()
 	t.registeredPids.Range(func(key, v interface{}) bool {
 		pid := key.(uint32)
-		if pid == GLOABL_TAP_PID {
+		if pid == GlobalTapPid {
 			return true
 		}
 
@@ -108,27 +123,31 @@ func (t *TlsTapper) ClearPids() {
 }
 
 func (t *TlsTapper) Close() []error {
-	errors := make([]error, 0)
+	returnValue := make([]error, 0)
 
 	if err := t.bpfObjects.Close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
-	errors = append(errors, t.syscallHooks.close()...)
+	returnValue = append(returnValue, t.syscallHooks.close()...)
 
 	for _, sslHooks := range t.sslHooksStructs {
-		errors = append(errors, sslHooks.close()...)
+		returnValue = append(returnValue, sslHooks.close()...)
+	}
+
+	for _, goHooks := range t.goHooksStructs {
+		returnValue = append(returnValue, goHooks.close()...)
 	}
 
 	if err := t.bpfLogger.close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
 	if err := t.poller.close(); err != nil {
-		errors = append(errors, err)
+		returnValue = append(returnValue, err)
 	}
 
-	return errors
+	return returnValue
 }
 
 func setupRLimit() error {
@@ -141,15 +160,15 @@ func setupRLimit() error {
 	return nil
 }
 
-func (t *TlsTapper) tapPid(pid uint32, sslLibrary string, namespace string) error {
-	logger.Log.Infof("Tapping TLS (pid: %v) (sslLibrary: %v)", pid, sslLibrary)
-
+func (t *TlsTapper) tapSSLLibPid(pid uint32, sslLibrary string, namespace string) error {
 	newSsl := sslHooks{}
 
 	if err := newSsl.installUprobes(&t.bpfObjects, sslLibrary); err != nil {
 		return err
 	}
 
+	logger.Log.Infof("Tapping TLS (pid: %v) (sslLibrary: %v)", pid, sslLibrary)
+
 	t.sslHooksStructs = append(t.sslHooksStructs, newSsl)
 
 	t.poller.addPid(pid, namespace)
@@ -165,6 +184,35 @@ func (t *TlsTapper) tapPid(pid uint32, sslLibrary string, namespace string) erro
 	return nil
 }
 
+func (t *TlsTapper) tapGoPid(procfs string, pid uint32, namespace string) error {
+	exePath, err := findLibraryByPid(procfs, pid, "")
+	if err != nil {
+		return err
+	}
+
+	hooks := goHooks{}
+
+	if err := hooks.installUprobes(&t.bpfObjects, exePath); err != nil {
+		return err
+	}
+
+	logger.Log.Infof("Tapping TLS (pid: %v) (Go: %v)", pid, exePath)
+
+	t.goHooksStructs = append(t.goHooksStructs, hooks)
+
+	t.poller.addPid(pid, namespace)
+
+	pids := t.bpfObjects.tlsTapperMaps.PidsMap
+
+	if err := pids.Put(pid, uint32(1)); err != nil {
+		return errors.Wrap(err, 0)
+	}
+
+	t.registeredPids.Store(pid, true)
+
+	return nil
+}
+
 func LogError(err error) {
 	var e *errors.Error
 	if errors.As(err, &e) {

tap/tlstapper/tlstapper_bpfel_arm64.go

@@ -1,5 +1,6 @@
 // Code generated by bpf2go; DO NOT EDIT.
-// +build arm64be armbe mips mips64 mips64p32 ppc64 s390 s390x sparc sparc64
+//go:build arm64
+// +build arm64
 
 package tlstapper
 
@@ -12,6 +13,18 @@ import (
 	"github.com/cilium/ebpf"
 )
 
+type tlsTapperTlsChunk struct {
+	Pid      uint32
+	Tgid     uint32
+	Len      uint32
+	Start    uint32
+	Recorded uint32
+	Fd       uint32
+	Flags    uint32
+	Address  [16]uint8
+	Data     [4096]uint8
+}
+
 // loadTlsTapper returns the embedded CollectionSpec for tlsTapper.
 func loadTlsTapper() (*ebpf.CollectionSpec, error) {
 	reader := bytes.NewReader(_TlsTapperBytes)
@@ -53,20 +66,24 @@ type tlsTapperSpecs struct {
 //
 // It can be passed ebpf.CollectionSpec.Assign.
 type tlsTapperProgramSpecs struct {
-	SslRead         *ebpf.ProgramSpec `ebpf:"ssl_read"`
-	SslReadEx       *ebpf.ProgramSpec `ebpf:"ssl_read_ex"`
-	SslRetRead      *ebpf.ProgramSpec `ebpf:"ssl_ret_read"`
-	SslRetReadEx    *ebpf.ProgramSpec `ebpf:"ssl_ret_read_ex"`
-	SslRetWrite     *ebpf.ProgramSpec `ebpf:"ssl_ret_write"`
-	SslRetWriteEx   *ebpf.ProgramSpec `ebpf:"ssl_ret_write_ex"`
-	SslWrite        *ebpf.ProgramSpec `ebpf:"ssl_write"`
-	SslWriteEx      *ebpf.ProgramSpec `ebpf:"ssl_write_ex"`
-	SysEnterAccept4 *ebpf.ProgramSpec `ebpf:"sys_enter_accept4"`
-	SysEnterConnect *ebpf.ProgramSpec `ebpf:"sys_enter_connect"`
-	SysEnterRead    *ebpf.ProgramSpec `ebpf:"sys_enter_read"`
-	SysEnterWrite   *ebpf.ProgramSpec `ebpf:"sys_enter_write"`
-	SysExitAccept4  *ebpf.ProgramSpec `ebpf:"sys_exit_accept4"`
-	SysExitConnect  *ebpf.ProgramSpec `ebpf:"sys_exit_connect"`
+	GoCryptoTlsRead    *ebpf.ProgramSpec `ebpf:"go_crypto_tls_read"`
+	GoCryptoTlsReadEx  *ebpf.ProgramSpec `ebpf:"go_crypto_tls_read_ex"`
+	GoCryptoTlsWrite   *ebpf.ProgramSpec `ebpf:"go_crypto_tls_write"`
+	GoCryptoTlsWriteEx *ebpf.ProgramSpec `ebpf:"go_crypto_tls_write_ex"`
+	SslRead            *ebpf.ProgramSpec `ebpf:"ssl_read"`
+	SslReadEx          *ebpf.ProgramSpec `ebpf:"ssl_read_ex"`
+	SslRetRead         *ebpf.ProgramSpec `ebpf:"ssl_ret_read"`
+	SslRetReadEx       *ebpf.ProgramSpec `ebpf:"ssl_ret_read_ex"`
+	SslRetWrite        *ebpf.ProgramSpec `ebpf:"ssl_ret_write"`
+	SslRetWriteEx      *ebpf.ProgramSpec `ebpf:"ssl_ret_write_ex"`
+	SslWrite           *ebpf.ProgramSpec `ebpf:"ssl_write"`
+	SslWriteEx         *ebpf.ProgramSpec `ebpf:"ssl_write_ex"`
+	SysEnterAccept4    *ebpf.ProgramSpec `ebpf:"sys_enter_accept4"`
+	SysEnterConnect    *ebpf.ProgramSpec `ebpf:"sys_enter_connect"`
+	SysEnterRead       *ebpf.ProgramSpec `ebpf:"sys_enter_read"`
+	SysEnterWrite      *ebpf.ProgramSpec `ebpf:"sys_enter_write"`
+	SysExitAccept4     *ebpf.ProgramSpec `ebpf:"sys_exit_accept4"`
+	SysExitConnect     *ebpf.ProgramSpec `ebpf:"sys_exit_connect"`
 }
 
 // tlsTapperMapSpecs contains maps before they are loaded into the kernel.
@@ -77,11 +94,13 @@ type tlsTapperMapSpecs struct {
 	ChunksBuffer         *ebpf.MapSpec `ebpf:"chunks_buffer"`
 	ConnectSyscallInfo   *ebpf.MapSpec `ebpf:"connect_syscall_info"`
 	FileDescriptorToIpv4 *ebpf.MapSpec `ebpf:"file_descriptor_to_ipv4"`
+	GoReadContext        *ebpf.MapSpec `ebpf:"go_read_context"`
+	GoWriteContext       *ebpf.MapSpec `ebpf:"go_write_context"`
 	Heap                 *ebpf.MapSpec `ebpf:"heap"`
 	LogBuffer            *ebpf.MapSpec `ebpf:"log_buffer"`
+	OpensslReadContext   *ebpf.MapSpec `ebpf:"openssl_read_context"`
+	OpensslWriteContext  *ebpf.MapSpec `ebpf:"openssl_write_context"`
 	PidsMap              *ebpf.MapSpec `ebpf:"pids_map"`
-	SslReadContext       *ebpf.MapSpec `ebpf:"ssl_read_context"`
-	SslWriteContext      *ebpf.MapSpec `ebpf:"ssl_write_context"`
 }
 
 // tlsTapperObjects contains all objects after they have been loaded into the kernel.
@@ -107,11 +126,13 @@ type tlsTapperMaps struct {
 	ChunksBuffer         *ebpf.Map `ebpf:"chunks_buffer"`
 	ConnectSyscallInfo   *ebpf.Map `ebpf:"connect_syscall_info"`
 	FileDescriptorToIpv4 *ebpf.Map `ebpf:"file_descriptor_to_ipv4"`
+	GoReadContext        *ebpf.Map `ebpf:"go_read_context"`
+	GoWriteContext       *ebpf.Map `ebpf:"go_write_context"`
 	Heap                 *ebpf.Map `ebpf:"heap"`
 	LogBuffer            *ebpf.Map `ebpf:"log_buffer"`
+	OpensslReadContext   *ebpf.Map `ebpf:"openssl_read_context"`
+	OpensslWriteContext  *ebpf.Map `ebpf:"openssl_write_context"`
 	PidsMap              *ebpf.Map `ebpf:"pids_map"`
-	SslReadContext       *ebpf.Map `ebpf:"ssl_read_context"`
-	SslWriteContext      *ebpf.Map `ebpf:"ssl_write_context"`
 }
 
 func (m *tlsTapperMaps) Close() error {
@@ -120,11 +141,13 @@ func (m *tlsTapperMaps) Close() error {
 		m.ChunksBuffer,
 		m.ConnectSyscallInfo,
 		m.FileDescriptorToIpv4,
+		m.GoReadContext,
+		m.GoWriteContext,
 		m.Heap,
 		m.LogBuffer,
+		m.OpensslReadContext,
+		m.OpensslWriteContext,
 		m.PidsMap,
-		m.SslReadContext,
-		m.SslWriteContext,
 	)
 }
 
@@ -132,24 +155,32 @@ func (m *tlsTapperMaps) Close() error {
 //
 // It can be passed to loadTlsTapperObjects or ebpf.CollectionSpec.LoadAndAssign.
 type tlsTapperPrograms struct {
-	SslRead         *ebpf.Program `ebpf:"ssl_read"`
-	SslReadEx       *ebpf.Program `ebpf:"ssl_read_ex"`
-	SslRetRead      *ebpf.Program `ebpf:"ssl_ret_read"`
-	SslRetReadEx    *ebpf.Program `ebpf:"ssl_ret_read_ex"`
-	SslRetWrite     *ebpf.Program `ebpf:"ssl_ret_write"`
-	SslRetWriteEx   *ebpf.Program `ebpf:"ssl_ret_write_ex"`
-	SslWrite        *ebpf.Program `ebpf:"ssl_write"`
-	SslWriteEx      *ebpf.Program `ebpf:"ssl_write_ex"`
-	SysEnterAccept4 *ebpf.Program `ebpf:"sys_enter_accept4"`
-	SysEnterConnect *ebpf.Program `ebpf:"sys_enter_connect"`
-	SysEnterRead    *ebpf.Program `ebpf:"sys_enter_read"`
-	SysEnterWrite   *ebpf.Program `ebpf:"sys_enter_write"`
-	SysExitAccept4  *ebpf.Program `ebpf:"sys_exit_accept4"`
-	SysExitConnect  *ebpf.Program `ebpf:"sys_exit_connect"`
+	GoCryptoTlsRead    *ebpf.Program `ebpf:"go_crypto_tls_read"`
+	GoCryptoTlsReadEx  *ebpf.Program `ebpf:"go_crypto_tls_read_ex"`
+	GoCryptoTlsWrite   *ebpf.Program `ebpf:"go_crypto_tls_write"`
+	GoCryptoTlsWriteEx *ebpf.Program `ebpf:"go_crypto_tls_write_ex"`
+	SslRead            *ebpf.Program `ebpf:"ssl_read"`
+	SslReadEx          *ebpf.Program `ebpf:"ssl_read_ex"`
+	SslRetRead         *ebpf.Program `ebpf:"ssl_ret_read"`
+	SslRetReadEx       *ebpf.Program `ebpf:"ssl_ret_read_ex"`
+	SslRetWrite        *ebpf.Program `ebpf:"ssl_ret_write"`
+	SslRetWriteEx      *ebpf.Program `ebpf:"ssl_ret_write_ex"`
+	SslWrite           *ebpf.Program `ebpf:"ssl_write"`
+	SslWriteEx         *ebpf.Program `ebpf:"ssl_write_ex"`
+	SysEnterAccept4    *ebpf.Program `ebpf:"sys_enter_accept4"`
+	SysEnterConnect    *ebpf.Program `ebpf:"sys_enter_connect"`
+	SysEnterRead       *ebpf.Program `ebpf:"sys_enter_read"`
+	SysEnterWrite      *ebpf.Program `ebpf:"sys_enter_write"`
+	SysExitAccept4     *ebpf.Program `ebpf:"sys_exit_accept4"`
+	SysExitConnect     *ebpf.Program `ebpf:"sys_exit_connect"`
 }
 
 func (p *tlsTapperPrograms) Close() error {
 	return _TlsTapperClose(
+		p.GoCryptoTlsRead,
+		p.GoCryptoTlsReadEx,
+		p.GoCryptoTlsWrite,
+		p.GoCryptoTlsWriteEx,
 		p.SslRead,
 		p.SslReadEx,
 		p.SslRetRead,
@@ -177,5 +208,5 @@ func _TlsTapperClose(closers ...io.Closer) error {
 }
 
 // Do not access this directly.
-//go:embed tlstapper_bpfeb.o
+//go:embed tlstapper_bpfel_arm64.o
 var _TlsTapperBytes []byte

tap/tlstapper/tlstapper_bpfel_x86.go

@@ -1,5 +1,6 @@
 // Code generated by bpf2go; DO NOT EDIT.
-// +build 386 amd64 amd64p32 arm arm64 mips64le mips64p32le mipsle ppc64le riscv64
+//go:build 386 || amd64
+// +build 386 amd64
 
 package tlstapper
 
@@ -12,6 +13,18 @@ import (
 	"github.com/cilium/ebpf"
 )
 
+type tlsTapperTlsChunk struct {
+	Pid      uint32
+	Tgid     uint32
+	Len      uint32
+	Start    uint32
+	Recorded uint32
+	Fd       uint32
+	Flags    uint32
+	Address  [16]uint8
+	Data     [4096]uint8
+}
+
 // loadTlsTapper returns the embedded CollectionSpec for tlsTapper.
 func loadTlsTapper() (*ebpf.CollectionSpec, error) {
 	reader := bytes.NewReader(_TlsTapperBytes)
@@ -53,20 +66,24 @@ type tlsTapperSpecs struct {
 //
 // It can be passed ebpf.CollectionSpec.Assign.
 type tlsTapperProgramSpecs struct {
-	SslRead         *ebpf.ProgramSpec `ebpf:"ssl_read"`
-	SslReadEx       *ebpf.ProgramSpec `ebpf:"ssl_read_ex"`
-	SslRetRead      *ebpf.ProgramSpec `ebpf:"ssl_ret_read"`
-	SslRetReadEx    *ebpf.ProgramSpec `ebpf:"ssl_ret_read_ex"`
-	SslRetWrite     *ebpf.ProgramSpec `ebpf:"ssl_ret_write"`
-	SslRetWriteEx   *ebpf.ProgramSpec `ebpf:"ssl_ret_write_ex"`
-	SslWrite        *ebpf.ProgramSpec `ebpf:"ssl_write"`
-	SslWriteEx      *ebpf.ProgramSpec `ebpf:"ssl_write_ex"`
-	SysEnterAccept4 *ebpf.ProgramSpec `ebpf:"sys_enter_accept4"`
-	SysEnterConnect *ebpf.ProgramSpec `ebpf:"sys_enter_connect"`
-	SysEnterRead    *ebpf.ProgramSpec `ebpf:"sys_enter_read"`
-	SysEnterWrite   *ebpf.ProgramSpec `ebpf:"sys_enter_write"`
-	SysExitAccept4  *ebpf.ProgramSpec `ebpf:"sys_exit_accept4"`
-	SysExitConnect  *ebpf.ProgramSpec `ebpf:"sys_exit_connect"`
+	GoCryptoTlsRead    *ebpf.ProgramSpec `ebpf:"go_crypto_tls_read"`
+	GoCryptoTlsReadEx  *ebpf.ProgramSpec `ebpf:"go_crypto_tls_read_ex"`
+	GoCryptoTlsWrite   *ebpf.ProgramSpec `ebpf:"go_crypto_tls_write"`
+	GoCryptoTlsWriteEx *ebpf.ProgramSpec `ebpf:"go_crypto_tls_write_ex"`
+	SslRead            *ebpf.ProgramSpec `ebpf:"ssl_read"`
+	SslReadEx          *ebpf.ProgramSpec `ebpf:"ssl_read_ex"`
+	SslRetRead         *ebpf.ProgramSpec `ebpf:"ssl_ret_read"`
+	SslRetReadEx       *ebpf.ProgramSpec `ebpf:"ssl_ret_read_ex"`
+	SslRetWrite        *ebpf.ProgramSpec `ebpf:"ssl_ret_write"`
+	SslRetWriteEx      *ebpf.ProgramSpec `ebpf:"ssl_ret_write_ex"`
+	SslWrite           *ebpf.ProgramSpec `ebpf:"ssl_write"`
+	SslWriteEx         *ebpf.ProgramSpec `ebpf:"ssl_write_ex"`
+	SysEnterAccept4    *ebpf.ProgramSpec `ebpf:"sys_enter_accept4"`
+	SysEnterConnect    *ebpf.ProgramSpec `ebpf:"sys_enter_connect"`
+	SysEnterRead       *ebpf.ProgramSpec `ebpf:"sys_enter_read"`
+	SysEnterWrite      *ebpf.ProgramSpec `ebpf:"sys_enter_write"`
+	SysExitAccept4     *ebpf.ProgramSpec `ebpf:"sys_exit_accept4"`
+	SysExitConnect     *ebpf.ProgramSpec `ebpf:"sys_exit_connect"`
 }
 
 // tlsTapperMapSpecs contains maps before they are loaded into the kernel.
@@ -77,11 +94,13 @@ type tlsTapperMapSpecs struct {
 	ChunksBuffer         *ebpf.MapSpec `ebpf:"chunks_buffer"`
 	ConnectSyscallInfo   *ebpf.MapSpec `ebpf:"connect_syscall_info"`
 	FileDescriptorToIpv4 *ebpf.MapSpec `ebpf:"file_descriptor_to_ipv4"`
+	GoReadContext        *ebpf.MapSpec `ebpf:"go_read_context"`
+	GoWriteContext       *ebpf.MapSpec `ebpf:"go_write_context"`
 	Heap                 *ebpf.MapSpec `ebpf:"heap"`
 	LogBuffer            *ebpf.MapSpec `ebpf:"log_buffer"`
+	OpensslReadContext   *ebpf.MapSpec `ebpf:"openssl_read_context"`
+	OpensslWriteContext  *ebpf.MapSpec `ebpf:"openssl_write_context"`
 	PidsMap              *ebpf.MapSpec `ebpf:"pids_map"`
-	SslReadContext       *ebpf.MapSpec `ebpf:"ssl_read_context"`
-	SslWriteContext      *ebpf.MapSpec `ebpf:"ssl_write_context"`
 }
 
 // tlsTapperObjects contains all objects after they have been loaded into the kernel.
@@ -107,11 +126,13 @@ type tlsTapperMaps struct {
 	ChunksBuffer         *ebpf.Map `ebpf:"chunks_buffer"`
 	ConnectSyscallInfo   *ebpf.Map `ebpf:"connect_syscall_info"`
 	FileDescriptorToIpv4 *ebpf.Map `ebpf:"file_descriptor_to_ipv4"`
+	GoReadContext        *ebpf.Map `ebpf:"go_read_context"`
+	GoWriteContext       *ebpf.Map `ebpf:"go_write_context"`
 	Heap                 *ebpf.Map `ebpf:"heap"`
 	LogBuffer            *ebpf.Map `ebpf:"log_buffer"`
+	OpensslReadContext   *ebpf.Map `ebpf:"openssl_read_context"`
+	OpensslWriteContext  *ebpf.Map `ebpf:"openssl_write_context"`
 	PidsMap              *ebpf.Map `ebpf:"pids_map"`
-	SslReadContext       *ebpf.Map `ebpf:"ssl_read_context"`
-	SslWriteContext      *ebpf.Map `ebpf:"ssl_write_context"`
 }
 
 func (m *tlsTapperMaps) Close() error {
@@ -120,11 +141,13 @@ func (m *tlsTapperMaps) Close() error {
 		m.ChunksBuffer,
 		m.ConnectSyscallInfo,
 		m.FileDescriptorToIpv4,
+		m.GoReadContext,
+		m.GoWriteContext,
 		m.Heap,
 		m.LogBuffer,
+		m.OpensslReadContext,
+		m.OpensslWriteContext,
 		m.PidsMap,
-		m.SslReadContext,
-		m.SslWriteContext,
 	)
 }
 
@@ -132,24 +155,32 @@ func (m *tlsTapperMaps) Close() error {
 //
 // It can be passed to loadTlsTapperObjects or ebpf.CollectionSpec.LoadAndAssign.
 type tlsTapperPrograms struct {
-	SslRead         *ebpf.Program `ebpf:"ssl_read"`
-	SslReadEx       *ebpf.Program `ebpf:"ssl_read_ex"`
-	SslRetRead      *ebpf.Program `ebpf:"ssl_ret_read"`
-	SslRetReadEx    *ebpf.Program `ebpf:"ssl_ret_read_ex"`
-	SslRetWrite     *ebpf.Program `ebpf:"ssl_ret_write"`
-	SslRetWriteEx   *ebpf.Program `ebpf:"ssl_ret_write_ex"`
-	SslWrite        *ebpf.Program `ebpf:"ssl_write"`
-	SslWriteEx      *ebpf.Program `ebpf:"ssl_write_ex"`
-	SysEnterAccept4 *ebpf.Program `ebpf:"sys_enter_accept4"`
-	SysEnterConnect *ebpf.Program `ebpf:"sys_enter_connect"`
-	SysEnterRead    *ebpf.Program `ebpf:"sys_enter_read"`
-	SysEnterWrite   *ebpf.Program `ebpf:"sys_enter_write"`
-	SysExitAccept4  *ebpf.Program `ebpf:"sys_exit_accept4"`
-	SysExitConnect  *ebpf.Program `ebpf:"sys_exit_connect"`
+	GoCryptoTlsRead    *ebpf.Program `ebpf:"go_crypto_tls_read"`
+	GoCryptoTlsReadEx  *ebpf.Program `ebpf:"go_crypto_tls_read_ex"`
+	GoCryptoTlsWrite   *ebpf.Program `ebpf:"go_crypto_tls_write"`
+	GoCryptoTlsWriteEx *ebpf.Program `ebpf:"go_crypto_tls_write_ex"`
+	SslRead            *ebpf.Program `ebpf:"ssl_read"`
+	SslReadEx          *ebpf.Program `ebpf:"ssl_read_ex"`
+	SslRetRead         *ebpf.Program `ebpf:"ssl_ret_read"`
+	SslRetReadEx       *ebpf.Program `ebpf:"ssl_ret_read_ex"`
+	SslRetWrite        *ebpf.Program `ebpf:"ssl_ret_write"`
+	SslRetWriteEx      *ebpf.Program `ebpf:"ssl_ret_write_ex"`
+	SslWrite           *ebpf.Program `ebpf:"ssl_write"`
+	SslWriteEx         *ebpf.Program `ebpf:"ssl_write_ex"`
+	SysEnterAccept4    *ebpf.Program `ebpf:"sys_enter_accept4"`
+	SysEnterConnect    *ebpf.Program `ebpf:"sys_enter_connect"`
+	SysEnterRead       *ebpf.Program `ebpf:"sys_enter_read"`
+	SysEnterWrite      *ebpf.Program `ebpf:"sys_enter_write"`
+	SysExitAccept4     *ebpf.Program `ebpf:"sys_exit_accept4"`
+	SysExitConnect     *ebpf.Program `ebpf:"sys_exit_connect"`
 }
 
 func (p *tlsTapperPrograms) Close() error {
 	return _TlsTapperClose(
+		p.GoCryptoTlsRead,
+		p.GoCryptoTlsReadEx,
+		p.GoCryptoTlsWrite,
+		p.GoCryptoTlsWriteEx,
 		p.SslRead,
 		p.SslReadEx,
 		p.SslRetRead,
@@ -177,5 +208,5 @@ func _TlsTapperClose(closers ...io.Closer) error {
 }
 
 // Do not access this directly.
-//go:embed tlstapper_bpfel.o
+//go:embed tlstapper_bpfel_x86.o
 var _TlsTapperBytes []byte