mozillazg/ptcpdump
GitHub: mozillazg/ptcpdump
基于 eBPF 的增强版 tcpdump，自动为捕获的网络数据包附加进程、容器和 Pod 元数据，解决传统抓包无法关联流量归属的问题。
Stars: 1233 | Forks: 68
# ptcpdump
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English | [中文](README.zh-CN.md)
ptcpdump 是一个由 eBPF 驱动的、兼容 tcpdump 的数据包分析器，
在可检测到的情况下，会自动为数据包附加进程/容器/Pod 元数据。
灵感来源于 [jschwinger233/skbdump](https://github.com/jschwinger233/skbdump)。
# 目录
* [特性](#features)
* [安装说明](#installation)
* [前置条件](#requirements)
* [用法](#usage)
* [命令示例](#example-commands)
* [输出示例](#example-output)
* [使用 Docker 运行](#running-with-docker)
* [后端](#backend)
* [参数标志](#flags)
* [与 tcpdump 比较](#compare-with-tcpdump)
* [开发](#developing)
* [依赖项](#dependencies)
* [构建说明](#building)
* [相关项目](#related-projects)
* [Flownix](#flownix)
## 特性
* 🔍 感知进程/容器/Pod 的数据包捕获。
* 📦 过滤支持：`--pid`（进程）、`--pname`（进程名）、`--container-id`（容器）、`--pod-name`（Pod）。
* 🎯 兼容 tcpdump 的标志（`-i`、`-w`、`-c`、`-s`、`-n`、`-C`、`-W`、`-A` 等）。
* 📜 像 tcpdump 一样支持 `pcap-filter(7)` 语法。
* 🌳 类似 tcpdump 的输出 + 进程/容器/Pod 上下文。
* 📑 详细模式显示进程和容器/Pod 的详细元数据。
* 💾 包含嵌入元数据的 PcapNG 格式（兼容 Wireshark）。
* 🌐 跨网络命名空间捕获（`--netns`）。
* 🚀 内核空间 BPF 过滤（低开销，降低 CPU 使用率）。
* ⚡ 容器运行时集成（Docker、containerd）。
## 安装说明
你可以从 [Releases 页面](https://github.com/mozillazg/ptcpdump/releases) 下载适用于 x86_64 和 arm64 的静态链接可执行文件。
### 前置条件
Linux 内核 >= 5.2（编译时需开启 BPF 和 BTF 支持）。
`ptcpdump` 可选地需要 debugfs。它必须被挂载到 /sys/kernel/debug 目录下。
如果该目录为空，可以通过以下命令进行挂载：
```
mount -t debugfs none /sys/kernel/debug
```
需要以下内核配置选项。将其构建为模块也是可以的。
| 选项 | 后端 | 备注 |
|---------------------------|---------------------------|------------------------|
| CONFIG_BPF=y | 两者 | **必选** |
| CONFIG_BPF_SYSCALL=y | 两者 | **必选** |
| CONFIG_DEBUG_INFO=y | 两者 | **必选** |
| CONFIG_DEBUG_INFO_BTF=y | 两者 | **必选** |
| CONFIG_KPROBES=y | 两者 | **必选** |
| CONFIG_KPROBE_EVENTS=y | 两者 | **必选** |
| CONFIG_TRACEPOINTS=y | 两者 | **必选** |
| CONFIG_PERF_EVENTS=y | 两者 | **必选** |
| CONFIG_NET=y | 两者 | **必选** |
| CONFIG_NET_SCHED=y | tc | **必选** |
| CONFIG_NET_CLS_BPF=y | tc | **必选** |
| CONFIG_NET_ACT_BPF=y | tc | **必选** |
| CONFIG_NET_SCH_INGRESS=y | tc | **必选** |
| CONFIG_CGROUPS=y | cgroup-skb | **必选** |
| CONFIG_CGROUP_BPF=y | cgroup-skb | **必选** |
| CONFIG_FILTER=y | socket-filter | **必选** |
| CONFIG_BPF_TRAMPOLINE=y | tp-btf | **必选** |
| CONFIG_SECURITY=y | 两者 | 可选（推荐） |
| CONFIG_BPF_TRAMPOLINE=y | 两者 | 可选（推荐） |
| CONFIG_SOCK_CGROUP_DATA=y | 两者 | 可选（推荐） |
| CONFIG_BPF_JIT=y | 两者 | 可选（推荐） |
| CONFIG_CGROUP_BPF=y | tc, tp-btf, socket-filter | 可选（推荐） |
| CONFIG_CGROUPS=y | tc, tp-btf, socket-filter | 可选（推荐） |
你可以使用 `zgrep $OPTION /proc/config.gz` 命令来验证某个选项是否已启用。
## 用法
### 命令示例
像 tcpdump 一样进行过滤：
```
sudo ptcpdump -i eth0 tcp
sudo ptcpdump -i eth0 -A -s 0 -n -v tcp and port 80 and host 10.10.1.1
sudo ptcpdump -i any -s 0 -n -v -C 100MB -W 3 -w test.pcapng 'tcp and port 80 and host 10.10.1.1'
sudo ptcpdump -i eth0 'tcp[tcpflags] & (tcp-syn|tcp-fin) != 0'
```
多个网络接口：
```
sudo ptcpdump -i eth0 -i lo
```
按进程或用户过滤：
```
sudo ptcpdump -i any --pid 1234 --pid 233 -f
sudo ptcpdump -i any --pname curl
sudo ptcpdump -i any --uid 1000
```
通过运行目标程序来捕获该进程的数据包：
```
sudo ptcpdump -i any -- curl ubuntu.com
```
按容器或 Pod 过滤：
```
sudo ptcpdump -i any --container-id 36f0310403b1
sudo ptcpdump -i any --container-name test
sudo ptcpdump -i any --pod-name test.default
```
以 PcapNG 格式保存数据：
```
sudo ptcpdump -i any -w demo.pcapng
sudo ptcpdump -i any -w - port 80 | tcpdump -n -r -
sudo ptcpdump -i any -w - port 80 | tshark -r -
```
捕获其他网络命名空间中的接口：
```
sudo ptcpdump -i lo --netns /run/netns/foo --netns /run/netns/bar
sudo ptcpdump -i any --netns /run/netns/foobar
sudo ptcpdump -i any --netns /proc/26/ns/net
```
### 输出示例
默认输出：
```
09:32:09.718892 vethee2a302f wget.3553008 In IP 10.244.0.2.33426 > 139.178.84.217.80: Flags [S], seq 4113492822, win 64240, length 0, ParentProc [python3.834381], Container [test], Pod [test.default]
09:32:09.718941 eth0 wget.3553008 Out IP 172.19.0.2.33426 > 139.178.84.217.80: Flags [S], seq 4113492822, win 64240, length 0, ParentProc [python3.834381], Container [test], Pod [test.default]
```
使用 `-q`：
```
09:32:09.718892 vethee2a302f wget.3553008 In IP 10.244.0.2.33426 > 139.178.84.217.80: tcp 0, ParentProc [python3.834381], Container [test], Pod [test.default]
09:32:09.718941 eth0 wget.3553008 Out IP 172.19.0.2.33426 > 139.178.84.217.80: tcp 0, ParentProc [python3.834381], Container [test], Pod [test.default]
```
使用 `-v`：
```
13:44:41.529003 eth0 In IP (tos 0x4, ttl 45, id 45428, offset 0, flags [DF], proto TCP (6), length 52)
139.178.84.217.443 > 172.19.0.2.42606: Flags [.], cksum 0x5284, seq 3173118145, ack 1385712707, win 118, options [nop,nop,TS val 134560683 ecr 1627716996], length 0
Process (pid 553587, cmd /usr/bin/wget, args wget kernel.org)
User (uid 1000)
ParentProc (pid 553296, cmd /bin/sh, args sh)
Container (name test, id d9028334568bf75a5a084963a8f98f78c56bba7f45f823b3780a135b71b91e95, image docker.io/library/alpine:3.18, labels {"io.cri-containerd.kind":"container","io.kubernetes.container.name":"test","io.kubernetes.pod.name":"test","io.kubernetes.pod.namespace":"default","io.kubernetes.pod.uid":"9e4bc54b-de48-4b1c-8b9e-54709f67ed0c"})
Pod (name test, namespace default, UID 9e4bc54b-de48-4b1c-8b9e-54709f67ed0c, labels {"run":"test"}, annotations {"kubernetes.io/config.seen":"2024-07-21T12:41:00.460249620Z","kubernetes.io/config.source":"api"})
```
使用 `--context` 限制输出中包含的上下文：
```
# --context=process
09:32:09.718892 vethee2a302f wget.3553008 In IP 10.244.0.2.33426 > 139.178.84.217.80: Flags [S], seq 4113492822, win 64240, length 0
# -v --context=process
13:44:41.529003 eth0 In IP (tos 0x4, ttl 45, id 45428, offset 0, flags [DF], proto TCP (6), length 52)
139.178.84.217.443 > 172.19.0.2.42606: Flags [.], cksum 0x5284, seq 3173118145, ack 1385712707, win 118, options [nop,nop,TS val 134560683 ecr 1627716996], length 0
Process (pid 553587, cmd /usr/bin/wget, args wget kernel.org)
# -v --context=process,parentproc,container,pod
# 或 -v --context=process --context=parentproc --context=container --context=pod
13:44:41.529003 eth0 In IP (tos 0x4, ttl 45, id 45428, offset 0, flags [DF], proto TCP (6), length 52)
139.178.84.217.443 > 172.19.0.2.42606: Flags [.], cksum 0x5284, seq 3173118145, ack 1385712707, win 118, options [nop,nop,TS val 134560683 ecr 1627716996], length 0
Process (pid 553587, cmd /usr/bin/wget, args wget kernel.org)
ParentProc (pid 553296, cmd /bin/sh, args sh)
Container (name test, id d9028334568bf75a5a084963a8f98f78c56bba7f45f823b3780a135b71b91e95, image docker.io/library/alpine:3.18, labels {"io.cri-containerd.kind":"container","io.kubernetes.container.name":"test","io.kubernetes.pod.name":"test","io.kubernetes.pod.namespace":"default","io.kubernetes.pod.uid":"9e4bc54b-de48-4b1c-8b9e-54709f67ed0c"})
Pod (name test, namespace default, UID 9e4bc54b-de48-4b1c-8b9e-54709f67ed0c, labels {"run":"test"}, annotations {"kubernetes.io/config.seen":"2024-07-21T12:41:00.460249620Z","kubernetes.io/config.source":"api"})
```
使用 `-A`：
```
14:44:34.457504 ens33 curl.205562 Out IP 10.0.2.15.39984 > 139.178.84.217.80: Flags [P.], seq 2722472188:2722472262, ack 892036871, win 64240, length 74, ParentProc [bash.180205]
E..r.,@.@.o.
.....T..0.P.E..5+g.P.......GET / HTTP/1.1
Host: kernel.org
User-Agent: curl/7.81.0
Accept: */*
```
使用 `-x`：
```
14:44:34.457504 ens33 curl.205562 Out IP 10.0.2.15.39984 > 139.178.84.217.80: Flags [P.], seq 2722472188:2722472262, ack 892036871, win 64240, length 74, ParentProc [bash.180205]
0x0000: 4500 0072 de2c 4000 4006 6fbf 0a00 020f
0x0010: 8bb2 54d9 9c30 0050 a245 a0fc 352b 6707
0x0020: 5018 faf0 ecfe 0000 4745 5420 2f20 4854
0x0030: 5450 2f31 2e31 0d0a 486f 7374 3a20 6b65
0x0040: 726e 656c 2e6f 7267 0d0a 5573 6572 2d41
0x0050: 6765 6e74 3a20 6375 726c 2f37 2e38 312e
0x0060: 300d 0a41 6363 6570 743a 202a 2f2a 0d0a
0x0070: 0d0a
```
使用 `-X`：
```
14:44:34.457504 ens33 curl.205562 Out IP 10.0.2.15.39984 > 139.178.84.217.80: Flags [P.], seq 2722472188:2722472262, ack 892036871, win 64240, length 74, ParentProc [bash.180205]
0x0000: 4500 0072 de2c 4000 4006 6fbf 0a00 020f E..r.,@.@.o.....
0x0010: 8bb2 54d9 9c30 0050 a245 a0fc 352b 6707 ..T..0.P.E..5+g.
0x0020: 5018 faf0 ecfe 0000 4745 5420 2f20 4854 P.......GET / HT
0x0030: 5450 2f31 2e31 0d0a 486f 7374 3a20 6b65 TP/1.1..Host: ke
0x0040: 726e 656c 2e6f 7267 0d0a 5573 6572 2d41 rnel.org..User-A
0x0050: 6765 6e74 3a20 6375 726c 2f37 2e38 312e gent: curl/7.81.
0x0060: 300d 0a41 6363 6570 743a 202a 2f2a 0d0a 0..Accept: */*..
0x0070: 0d0a ..
```
### 使用 Docker 运行
`ptcpdump` 的 Docker 镜像发布在 https://quay.io/repository/ptcpdump/ptcpdump。
```
docker run --privileged --rm -t --net=host --pid=host \
-v /sys/fs/cgroup:/sys/fs/cgroup:ro \
-v /var/run:/var/run:ro \
-v /run:/run:ro \
quay.io/ptcpdump/ptcpdump:latest ptcpdump -i any -c 2 tcp
```
### 后端
ptcpdump 支持通过 `--backend` 标志指定特定的 eBPF 技术来进行数据包捕获。
| | `tc` | `cgroup-skb` | `socket-filter` | `tp-btf` |
|-------------------------|---------------------------|----------------------------|-------------------------------|-------------------------|
| eBPF 程序类型 | `BPF_PROG_TYPE_SCHED_CLS` | `BPF_PROG_TYPE_CGROUP_SKB` | `BPF_PROG_TYPE_SOCKET_FILTER` | `BPF_PROG_TYPE_TRACING` |
| 二层数据 | ✅ | ❌ | ✅ | ✅ |
| 跨网络命名空间 | ❌ | ✅ | ❌ | ✅ |
| 内核版本 | 5.2+ | 5.2+ | 5.4+ | 5.5+ |
| cgroup v2 | 推荐 | **必选** | 推荐 | 推荐 |
如果未指定此标志，则默认使用 `tc`。
* 在主机上运行 `curl http://1.1.1.1`：
### 参数标志
* `--backend tc`:
$ sudo ptcpdump -i any --backend tc host 1.1.1.1
12:11:28.009276 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [S], seq 615672474, win 64240, options [mss 1460,sackOK,TS val 2168208063 ecr 0,nop,wscale 7], length 0, ParentProc [bash.321004]
12:11:28.113779 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [S.], seq 1810787293, ack 615672475, win 64240, options [mss 1460], length 0, ParentProc [bash.321004]
12:11:28.113852 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672475, ack 1810787294, win 64240, length 0, ParentProc [bash.321004]
12:11:28.114216 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [P.], seq 615672475:615672545, ack 1810787294, win 64240, length 70, ParentProc [bash.321004]
12:11:28.115383 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787294, ack 615672545, win 64240, length 0, ParentProc [bash.321004]
12:11:28.534486 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [P.], seq 1810787294:1810787680, ack 615672545, win 64240, length 386, ParentProc [bash.321004]
12:11:28.534751 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672545, ack 1810787680, win 63854, length 0, ParentProc [bash.321004]
12:11:28.536982 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [F.], seq 615672545, ack 1810787680, win 63854, length 0, ParentProc [bash.321004]
12:11:28.538160 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787680, ack 615672546, win 64239, length 0, ParentProc [bash.321004]
12:11:28.642291 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [FP.], seq 1810787680, ack 615672546, win 64239, length 0, ParentProc [bash.321004]
12:11:28.642511 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672546, ack 1810787681, win 63854, length 0, ParentProc [bash.321004]
* `--backend cgroup-skb`:
$ sudo ptcpdump -i any --backend cgroup-skb host 1.1.1.1
12:11:28.009182 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [S], seq 6672474, win 64240, options [mss 146063 ecr 0,nop,wscale 7], length 0, Thread [curl.402475], ParentProc [bash.321004]
12:11:28.113815 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [S.], seq 1810787293, ack 615672475, win 64240, gth 0, ParentProc [bash.321004]
12:11:28.113849 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672475, ack 1810787294, win 64240, ash.321004]
12:11:28.114212 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [P.], seq 615672475:615672545, ack 1810787294, hread [curl.402475], ParentProc [bash.321004]
12:11:28.115409 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787294, ack 615672545, win 64240, lsh.321004]
12:11:28.534596 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [P.], seq 1810787294:1810787680, ack 615672545, ParentProc [bash.321004]
12:11:28.534738 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672545, ack 1810787680, win 63854, ash.321004]
12:11:28.536967 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [F.], seq 615672545, ack 1810787680, win 63854,.402475], ParentProc [bash.321004]
12:11:28.538189 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787680, ack 615672546, win 64239, lsh.321004]
12:11:28.642419 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672546, ack 1810787681, win 63854, ash.321004]
* `--backend socket-filter`:
$ sudo ptcpdump -i any --backend socket-filter host 1.1.1.1
12:11:28.009426 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [S], seq 615672474, win 64240, options [mss 146063 ecr 0,nop,wscale 7], length 0, ParentProc [bash.321004]
12:11:28.113762 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [S.], seq 1810787293, ack 615672475, win 64240, gth 0, ParentProc [bash.321004]
12:11:28.113861 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672475, ack 1810787294, win 64240, ash.321004]
12:11:28.114503 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [P.], seq 615672475:615672545, ack 1810787294, arentProc [bash.321004]
12:11:28.115335 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787294, ack 615672545, win 64240, lsh.321004]
12:11:28.534424 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [P.], seq 1810787294:1810787680, ack 615672545, ParentProc [bash.321004]
12:11:28.534825 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672545, ack 1810787680, win 63854, ash.321004]
12:11:28.537088 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [F.], seq 615672545, ack 1810787680, win 63854,bash.321004]
12:11:28.538153 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787680, ack 615672546, win 64239, lsh.321004]
12:11:28.642247 ens33 curl.402475 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [FP.], seq 1810787680, ack 615672546, win 64239,bash.321004]
12:11:28.642537 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672546, ack 1810787681, win 63854, ash.321004]
* `--backend tp-btf`:
$ sudo ptcpdump -i any --backend tp-btf host 1.1.1.1
12:11:28.009353 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [S], seq 615672474, win 64240, options [mss 146063 ecr 0,nop,wscale 7], length 0, ParentProc [bash.321004]
12:11:28.113739 ens33 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [S.], seq 1810787293, ack 615672475, win 64240, options [mss
12:11:28.113857 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672475, ack 1810787294, win 64240, ash.321004]
12:11:28.114225 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [P.], seq 615672475:615672545, ack 1810787294, arentProc [bash.321004]
12:11:28.115242 ens33 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787294, ack 615672545, win 64240, length 0
12:11:28.534245 ens33 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [P.], seq 1810787294:1810787680, ack 615672545, win 64240, l
12:11:28.534768 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672545, ack 1810787680, win 63854, ash.321004]
12:11:28.537038 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [F.], seq 615672545, ack 1810787680, win 63854,bash.321004]
12:11:28.538129 ens33 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [.], seq 1810787680, ack 615672546, win 64239, length 0
12:11:28.642088 ens33 In IP 1.1.1.1.80 > 10.0.2.15.48448: Flags [FP.], seq 1810787680, ack 615672546, win 64239, length 0
12:11:28.642523 ens33 curl.402475 Out IP 10.0.2.15.48448 > 1.1.1.1.80: Flags [.], seq 615672546, ack 1810787681, win 63854, ash.321004]
* 在 Docker 容器中运行 `curl http://1.1.1.1`：
* `--backend tc`:
$ sudo ptcpdump -i any --backend tc host 1.1.1.1
12:20:31.336397 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.336533 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.336794 ens33 Out IP 10.0.215.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0
12:20:31.468027 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0
12:20:31.467769 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.467781 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468025 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468042 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468061 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0
12:20:31.468089 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468093 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468110 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71
12:20:31.468464 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0
12:20:31.468535 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468558 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575461 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386
12:20:31.575576 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575613 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575877 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575890 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575916 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0
12:20:31.577079 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577107 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577146 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0
12:20:31.577736 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0
12:20:31.577761 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577773 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687029 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0
12:20:31.687166 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687214 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687398 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687413 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687453 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0
* `--backend cgroup-skb`:
$ sudo ptcpdump -i any --backend cgroup-skb host 1.1.1.1
12:20:31.336108 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, Thread [curl.405939], ParentProc [bash.405653], Container [musing_banach]
12:20:31.467819 45@402653309 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.467876 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468072 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, Thread [curl.405939], ParentProc [bash.405653], Container [musing_banach]
12:20:31.468681 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575750 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575848 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.576982 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, Thread [curl.405939], ParentProc [bash.405653], Container [musing_banach]
12:20:31.577843 45@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687357 45@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
* `--backend socket-filter`:
$ sudo ptcpdump -i any --backend socket-filter host 1.1.1.1
12:20:31.336456 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.336818 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0
12:20:31.467700 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0
12:20:31.467776 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.467784 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468030 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468066 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0
12:20:31.468092 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468122 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71
12:20:31.468461 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0
12:20:31.468552 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468565 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575416 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386
12:20:31.575601 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575623 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575889 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575928 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0
12:20:31.577085 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577153 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0
12:20:31.577733 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0
12:20:31.577770 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577778 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687015 ens33 In IP 1..1.1.80 > 10.0.2.15.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0
12:20:31.687206 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687223 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687409 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687464 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0
* `--backend tp-btf`:
$ sudo ptcpdump -i any --backend tp-btf host 1.1.1.1
12:20:31.336316 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.336382 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.336443 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.336801 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [S], seq 3064539219, win 64240, options [mss 1460,sackOK,TS val 1731159046 ecr 0,nop,wscale 7], length 0
12:20:31.467682 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0
12:20:31.467773 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.467783 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.467811 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [S.], seq 488132001, ack 3064539220, win 64240, options [mss 1460], length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468005 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468022 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468029 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468063 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539220, ack 488132002, win 64240, length 0
12:20:31.468078 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468085 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468091 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468112 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [P.], seq 3064539220:3064539291, ack 488132002, win 64240, length 71
12:20:31.468446 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0
12:20:31.468543 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468562 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.468668 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132002, ack 3064539291, win 64240, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575358 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386
12:20:31.575586 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575617 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575732 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [P.], seq 488132002:488132388, ack 3064539291, win 64240, length 386, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575855 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575870 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > .1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575883 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.575920 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539291, ack 488132388, win 63854, length 0
12:20:31.577059 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577074 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577082 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577148 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [F.], seq 3064539291, ack 488132388, win 63854, length 0
12:20:31.577704 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0
12:20:31.577764 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577774 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.577835 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.686955 ens33 In IP 1.1.1.1.80 > 10.0.2.15.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0
12:20:31.687183 docker0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687218 veth1d387b0 curl.405939 Out IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687316 eth0@4026533097 curl.405939 In IP 1.1.1.1.80 > 172.17.0.4.38670: Flags [FP.], seq 488132388, ack 3064539292, win 64239, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687369 eth0@4026533097 curl.405939 Out IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687388 veth1d387b0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687404 docker0 curl.405939 In IP 172.17.0.4.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0, ParentProc [bash.405653], Container [musing_banach]
12:20:31.687457 ens33 Out IP 10.0.2.15.38670 > 1.1.1.1.80: Flags [.], seq 3064539292, ack 488132389, win 63854, length 0
```
Usage:
ptcpdump [flags] [expression] [-- command [args]]
Examples:
sudo ptcpdump -i any tcp
sudo ptcpdump -i eth0 -i lo
sudo ptcpdump -i eth0 --pid 1234 port 80 and host 10.10.1.1
sudo ptcpdump -i any --pname curl -A
sudo ptcpdump -i any --container-id 36f0310403b1
sudo ptcpdump -i any --container-name test
sudo ptcpdump -i any -- curl ubuntu.com
sudo ptcpdump -i any -w ptcpdump.pcapng
sudo ptcpdump -i any -w - | tcpdump -n -r -
sudo ptcpdump -i any -w - | tshark -r -
ptcpdump -r ptcpdump.pcapng
Expression: see "man 7 pcap-filter"
Flags:
-S, --absolute-tcp-sequence-numbers Print absolute, rather than relative, TCP sequence numbers.
--backend string Specify the backend to use for capturing packets. Possible values are "tc", "cgroup-skb", "tp-btf" and "socket-filter" (default "tc")
--container-id string Filter by container id (only TCP and UDP packets are supported)
--container-name string Filter by container name (only TCP and UDP packets are supported)
--containerd-address string Address of containerd service (default "/run/containerd/containerd.sock")
--context strings Specify which context information to include in the output (default [process,thread,parentproc,user,container,pod])
--count Print only on stdout the packet count when reading capture file instead of parsing/printing the packets
--cri-runtime-address string Address of CRI container runtime service (default: uses in order the first successful one of [/var/run/dockershim.sock, /var/run/cri-dockerd.sock, /run/crio/crio.sock, /run/containerd/containerd.sock])
--delay-before-handle-packet-events duration Delay some durations before handle packet events
-Q, --direction string Choose send/receive direction for which packets should be captured. Possible values are 'in', 'out' and 'inout' (default "inout")
--disable-reverse-match Disable reverse match for TCP and UDP packets.
--docker-address string Address of Docker Engine service (default "/var/run/docker.sock")
--embed-keylog-to-pcapng -- CMD [ARGS] Write TLS Key Log file to this path (experimental: only support unstripped Go binary and must combined with -- CMD [ARGS])
--event-chan-size uint Size of event chan (default 20)
--exec-events-worker-number uint Number of worker to handle exec events (default 50)
-F, --expression-file string Use file as input for the filter expression. An additional expression given on the command line is ignored.
-W, --file-count uint Used in conjunction with the -C option, this will limit the number of files created to the specified number, and begin overwriting files from the beginning, thus creating a 'rotating' buffer.
-C, --file-size fileSize Before writing a raw packet to a savefile, check whether the file is currently larger than file_size and, if so, close the current savefile and open a new one. Savefiles after the first savefile will have the name specified with the -w flag, with a number after it, starting at 1 and continuing upward.
-f, --follow-forks Trace child processes as they are created by currently traced processes when filter by process
-h, --help help for ptcpdump
-i, --interface strings Interfaces to capture (default [lo])
--kernel-btf string specify kernel BTF file (default: uses in order the first successful one of [/sys/kernel/btf/vmlinux, /var/lib/ptcpdump/btf/vmlinux, /var/lib/ptcpdump/btf/vmlinux-$(uname -r), /var/lib/ptcpdump/btf/$(uname -r).btf, download BTF file from https://mirrors.openanolis.cn/coolbpf/btf/ and https://github.com/aquasecurity/btfhub-archive/]
-D, --list-interfaces Print the list of the network interfaces available on the system
--log-level string Set the logging level ("debug", "info", "warn", "error", "fatal") (default "warn")
--micro Shorthands for --time-stamp-precision=micro
--nano Shorthands for --time-stamp-precision=nano
--netns strings Path to an network namespace file or name (default [/proc/self/ns/net])
-n, --no-convert-addr count Don't convert addresses (i.e., host addresses, port numbers, etc.) to names
-#, --number Print an optional packet number at the beginning of the line
--oneline Print parsed packet output in a single line
--pid uints Filter by process IDs (only TCP and UDP packets are supported) (default [])
--pname string Filter by process name (only TCP and UDP packets are supported)
--pod-name string Filter by pod name (format: NAME.NAMESPACE, only TCP and UDP packets are supported)
--print Print parsed packet output, even if the raw packets are being saved to a file with the -w flag
-A, --print-data-in-ascii Print each packet (minus its link level header) in ASCII
-x, --print-data-in-hex count When parsing and printing, in addition to printing the headers of each packet, print the data of each packet in hex
-X, --print-data-in-hex-ascii count When parsing and printing, in addition to printing the headers of each packet, print the data of each packet in hex and ASCII
-t, --print-timestamp count control the format of the timestamp printed in the output
-q, --quiet Quiet output. Print less protocol information so output lines are shorter
-r, --read-file string Read packets from file (which was created with the -w option). e.g. ptcpdump.pcapng
-c, --receive-count uint Exit after receiving count packets
-s, --snapshot-length uint32 Snarf snaplen bytes of data from each packet rather than the default of 262144 bytes (default 262144)
--time-stamp-precision string When capturing, set the time stamp precision for the capture to the format (default "micro")
--uid uints Filter by user IDs (only TCP and UDP packets are supported) (default [])
-v, --verbose count When parsing and printing, produce (slightly more) verbose output
--version Print the ptcpdump and libpcap version strings and exit
-w, --write-file string Write the raw packets to file rather than parsing and printing them out. They can later be printed with the -r option. Standard output is used if file is '-'. e.g. ptcpdump.pcapng
--write-keylog-file -- CMD [ARGS] Write TLS Key Log file to this path (experimental: only support unstripped Go binary and must combined with -- CMD [ARGS])
```
## 与 tcpdump 比较
| 选项 | tcpdump | ptcpdump |
|---------------------------------------------------|---------|--------------------------|
| *expression* | ✅ | ✅ |
| -i *interface*, --interface=*interface* |标签：Docker, Docker镜像, Go语言, Linux内核, PcapNG, Pod, Wireshark, 内核态, 句柄查看, 子域名突变, 安全防御评估, 客户端加密, 容器ID, 容器网络, 开源, 数据包分析器, 日志审计, 程序破解, 系统网络管理, 网络安全, 网络抓包, 网络排障, 网络流量过滤, 请求拦截, 进程级网络追踪, 防御绕过, 隐私保护