# MOROS Network
## NET
Display the network configuration:
> net config
mac: 52-54-00-12-34-56
ip: 10.0.2.15/24
gw: 10.0.2.2
dns: 10.0.2.3
Display one attribute of the network configuration:
> net config dns
dns: 10.0.2.3
Set one attribute of the network configuration:
> net config dns 10.0.2.3
Display network statistics:
> net stat
rx: 13 packets (4052 bytes)
tx: 15 packets (1518 bytes)
Listen for packets transmitted on the network:
> net monitor
------------------------------------------------------------------
[488.396667] NET RTL8139 Receiving:
00000000: 3333 0000 0001 5256 0000 0002 86DD 6000 33....RV......`.
00000010: 0000 0038 3AFF FE80 0000 0000 0000 0000 ...8:...........
00000020: 0000 0000 0002 FF02 0000 0000 0000 0000 ................
00000030: 0000 0000 0001 8600 155E 4000 0708 0000 .........^@.....
00000040: 0000 0000 0000 0101 5256 0000 0002 0304 ........RV......
00000050: 40C0 0001 5180 0000 3840 0000 0000 FEC0 @...Q...8@......
00000060: 0000 0000 0000 0000 0000 0000 0000 ..............
------------------------------------------------------------------
[543.871322] NET RTL8139 Receiving:
00000000: 5254 0012 3456 5255 0A00 0202 0800 4500 RT..4VRU .....E.
00000010: 002C 0001 0000 4006 62BB 0A00 0202 0A00 .,....@.b. ... .
00000020: 020F A2E8 0016 0412 F801 0000 0000 6002 ..............`.
00000030: 2238 BECB 0000 0204 05B4 0000 "8..........
------------------------------------------------------------------
## DHCP
The `dhcp` command configures the network automatically:
> dhcp --verbose
DEBUG: DHCP Discover transmitted
DEBUG: DHCP Offer received
ip: 10.0.2.15/24
gw: 10.0.2.2
dns: 10.0.2.3
## HOST
The `host` command performs DNS lookups:
> host example.com
93.184.216.34
## TCP
The `tcp` command connects to TCP sockets:
> tcp time.nist.gov:13 --verbose
DEBUG: Connected to 129.6.15.30:13
58884 20-02-05 19:19:42 00 0 0 49.2 UTC(NIST) *
This could also be done with the `read` command:
> read /net/tcp/time.nist.gov:13
58884 20-02-05 19:19:55 00 0 0 49.2 UTC(NIST) *
## HTTP
Requesting a resource on a host:
> http moros.cc /test.html
Is equivalent to:
> read /net/http/moros.cc/test.html
And:
> read /net/http/moros.cc:80/test.html
## SOCKET
The `socket` command is used to read and write to network connexions
like the `netcat` command on Unix.
For example the request made with `tcp` above is equivalent to this:
> socket time.nist.gov:13 --read-only
59710 22-05-11 21:44:52 50 0 0 359.3 UTC(NIST) *
And the request made with `http` is equivalent to that:
> socket moros.cc:80
GET /test.html HTTP/1.0
Host: moros.cc
HTTP/1.1 200 OK
Server: nginx
Date: Wed, 11 May 2022 21:46:34 GMT
Content-Type: text/html
Content-Length: 866
Connection: close
Last-Modified: Fri, 29 Oct 2021 17:50:58 GMT
ETag: "617c3482-362"
Accept-Ranges: bytes
MOROS: Obscure Rust Operating System
MOROS
Here's a connexion to a SMTP server to send a mail:
> socket 10.0.2.2:2500
220 EventMachine SMTP Server
HELO moros.cc
250-Ok EventMachine SMTP Server
MAIL FROM:
250 Ok
RCPT TO:
250 Ok
DATA
354 Send it
Subject: Test
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum nec
diam vitae ex blandit malesuada nec a turpis.
.
250 Message accepted
QUIT
221 Ok
Sending a file to a server:
> socket 10.0.2.2:1234 <= /tmp/alice.txt