Zephyr HTTP 服务：从固件到网页、动态接口和 WebSocket

原README的命令与客户端对照

以下是原文各变体的原始展示片段，供理解源文，不是已经验证的执行步骤。本文主线仍限定QEMU本地HTTP；TLS/USB需要独立核验，尤其不能把演示CA加入日常信任或降低浏览器安全检查。占位PID/板型和输出文件不得照抄到生产系统。

原文片段 1

   $ west build -p auto -b <board_to_use> -t run samples/net/sockets/http_server

原文片段 2

   $ west build -p auto -b <board_to_use> -t run --test samples/net/sockets/http_server/sample.net.sockets.https.server

原文片段 3

   $ west build -b <board_to_use> -t sample_ca_cert samples/net/sockets/http_server

原文片段 4

   $ west build -t sample_server_cert samples/net/sockets/http_server

原文片段 5

   $ west build samples/net/sockets/http_server

原文片段 6

   import websocket

   websocket.enableTrace(True)
   ws = websocket.WebSocket()
   ws.connect("ws://192.0.2.1/ws_echo")
   ws.send("Hello, Server")
   print(ws.recv())
   while True:
     line = input("> ")
     if line == "quit":
       break
     ws.send(line)
     print(ws.recv())
   ws.close()

原文片段 7

   $ ip link show

原文片段 8

   $ sudo ip addr add 192.0.2.2/24 dev eth-device
   $ sudo ip route add 192.0.2.0/24 dev eth-device

原文片段 9

   $ curl -v --compressed http://192.0.2.1
   $ curl -v --compressed https://192.0.2.1

原文片段 10

   $ sudo perf stat -p <pid_of_server>

原文片段 11

   $ sudo perf record -g -p <pid_of_server> -o perf.data

原文片段 12

   $ sudo perf report -i perf.data

原文片段 13

   $ sudo perf script | ~/FlameGraph/stackcollapse-perf.pl > out.perf-folded

原文片段 14

   $ ~/FlameGraph/flamegraph.pl out.perf-folded > flamegraph.svg

补充静态发现：ws.c 的 netstats_collect 未检查 net_mgmt 返回值，读取的统计结构未在调用前显式初始化，错误路径需补处理；sendall 只检查负值，若发送返回0则不能推进循环；main也未处理init_usb和http_server_start的失败返回。这些是待验证的健壮性问题，不是已重现的漏洞结论。

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