AX25_CALL(8)

💖 AX25_CALL(8) — or like, the whole fam: ax25_call, netrom_call, rose_call, tcp_call 🎀

Hiii bestie, welcome to the Linux Programmer's Manual, section 8 (admin/system commands, the big-kid stuff) ✨ This page is about four little connector programs that do one job and do it cute: dial up a connection for you. Slay.

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🌸 NAME 🌸

ax25_call, netrom_call, rose_call, tcp_call — literally just here to make an AX.25, NET/ROM, ROSE or TCP connection 🦋

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✨ SYNOPSIS ✨

ax25_call [-c] [-i paclen] [-o paclen] port local_call remote_call
[digipeaters ...]

netrom_call [-c] [-i paclen] [-o paclen] port local_call
remote_netrom_addr

rose_call [-c] [-i paclen] [-o paclen] port local_call remote_call
remote_rose_addr

tcp_call [-c] [-i paclen] [-o paclen] remote_addr remote_port

Yes the line wrapping is real, don't @ me, that's how it came 💅

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🫶 DESCRIPTION 🫶

Okay so. ax25_call, netrom_call, rose_call and tcp_call all do the same energy: they establish an AX.25, NET/ROM, ROSE or a TCP connection in a manner suitable for calling from either the ax25d program directly, or from the node program as an external command. Two ways in, one vibe 💫

And here's the cute part: by setting the command line arguments appropriately it is possible to set the local callsign from which the call will be made 👑 Like, you get to choose who you are when you knock on the door.

Real talk: No translation of the end of lines is performed by this program. Not a single one. Zero newline glow-ups. The bytes go through exactly as they arrived, periodt 💀

Now the per-program specifics, because they're all a lil different:

• For netrom_call, the remote_netrom_addr parameter may either be in the form of a single callsign or as a NET/ROM alias and callsign pair separated by colon. For example NMCLUS:GB7BPQ 🌈
• For rose_call, the remote_rose_addr parameter must be in the form of a ten digit ROSE address 🔢
• For tcp_call, the remote_addr parameter must be a dotted-quad IP address or a hostname, and the remote_port must be a service name (see services(5)) or a port number 🌐

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💅 OPTIONS 💅

• -c — Enables zlib based compression on the incoming connection ✨ Compression algorithm is the same as in LinuxNode (see node(8)). Iconic, honestly.
• -i paclen — The maximum frame length to be used on the incoming connection. The default is 256 for ax25_call and rose_call, 236 for netrom_call and 1024 for tcp_call. 🎀
• -o paclen — The maximum frame length to be used on the outgoing connection. The default is 256 for ax25_call and rose_call, 236 for netrom_call and 1024 for tcp_call. 🦋

(Yes bestie, -i and -o have the exact same defaults. It's giving "matched set." We love consistency 💜)

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🍓 FILES 🍓

• /etc/ax25/axports
• /etc/ax25/nrports
• /etc/ax25/rsports

Where all your port configs live, go look, they're waiting for you 🙈

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👑 SEE ALSO 👑

ax25(4), netrom(4), rose(4), tcp(4).

Go read the section 4 pages if you want the deep lore 📚

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💀 AUTHOR 💀

• Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>
• Tomi Manninen OH2BNS <oh2bns@sral.fi>

Legends, both of them 🫶

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Okay that's the whole page, no notes, you ate that 💖

This little love letter comes to you from the Linux crew, dated 27 April 2008, and it lives under the name AX25_CALL(8) in the corner of the manual where all the packet-radio girlies hang out. Byeee bestie, go make some connections ✨🎀🌸