The linux kernel module for HTTP static file service.
Loaded in the kernel to provide HTTP static file service, support keep-alive and files list.
List of files:
Installing linux kernel headers on Ubuntu:
$ sudo apt-get install linux-headers-$(uname -r)$ makeFirst load khttpd.ko kernel model:
$ sudo insmod ./khttpd.ko port=8000 root=/home/ubuntu/khttpdit is now listening to 0.0.0.0:8000 and can send requests.
Sending http request file:
$ curl http://10.211.55.4:8000/src/http_request.c -voa
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* Trying 10.211.55.4:8000...
* Connected to 10.211.55.4 (10.211.55.4) port 8000 (#0)
> GET /src/http_request.c HTTP/1.1
> Host: 10.211.55.4:8000
> User-Agent: curl/7.88.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Server: khttpd/0.0.1
< Connection: close
< Content-Length: 4007
<
{ [2896 bytes data]
100 4007 100 4007 0 0 522k 0 --:--:-- --:--:-- --:--:-- 1956k
* Closing connection 0File SHA256
$ openssl dgst -sha256 ./a
SHA256(./a)= 2b9470d3437c346ff716bd9109f7541b286b67651e5eeec01b2629b236255b75
$ openssl dgst -sha256 /home/ubuntu/khttpd/src/http_request.c
SHA2-256(/home/ubuntu/khttpd/src/http_request.c)= 2b9470d3437c346ff716bd9109f7541b286b67651e5eeec01b2629b236255b75Of course, it is possible to list the files in the directory if the folder exists:
# curl http://127.0.0.1:8000/src -v -L
* Trying 127.0.0.1:8000...
* Connected to 127.0.0.1 (127.0.0.1) port 8000 (#0)
> GET /src HTTP/1.1
> Host: 127.0.0.1:8000
> User-Agent: curl/7.81.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 302 Found
< Server: khttpd/0.0.1
< Connection: close
< Location: /src/
* Closing connection 0
* Issue another request to this URL: 'http://127.0.0.1:8000/src/'
* Hostname 127.0.0.1 was found in DNS cache
* Trying 127.0.0.1:8000...
* Connected to 127.0.0.1 (127.0.0.1) port 8000 (#1)
> GET /src/ HTTP/1.1
> Host: 127.0.0.1:8000
> User-Agent: curl/7.81.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Server: khttpd/0.0.1
< Connection: close
< Transfer-Encoding: chunked
<
<html><head><title>Directory listing for /src/</title>
... ignore more html body ...The khttpd.ko module provides the following parameters with default values:
# Listening address
listen_addr=0.0.0.0
# Listening port
port=8000
# Pending connections queue size
backlog=1024
# Sets the root directory for requests
root_dir=/var/www/html
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