VIEW-OS(1)

🦋 NAME 🦋

mstack — networking stack selection 💅

bestie this is a page from the View-OS General Commands Manual, and it's literally your group chat for picking which network stack your processes get to vibe with ✨

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🌸 SYNOPSIS 🌸

mstack [-hv] [-o protocol list] stack_mountpoint command

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✨ DESCRIPTION ✨

okay so picture this: in View-OS you can have multiple networking stacks available to processes at the same time. yes, all at once, no cap 👑

View-OS supports the msocket(2) system call. mstack defines the default stack (for each address family) that gets used when msocket refers to a NULL pathname for its stack. 🫶

mstack also provides backward compatibility for all the programs still using the obsolete socket(2) system call. (obsolete bestie, we said what we said 💀)

The stack mountpoint identifies the stack. In ViewOS it is the mountpoint where the stack was mounted (by mount(2)(8)). In fact the call:

"socket(domain,type,protocol)"

is equivalent to:

"msocket(NULL,domain,type protocol)"

mstacks changes the default stack for the desired protocol families and executes the command (by execve(2)). 🚀

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💖 OPTIONS 💖

• -h — prints the mstack command usage 🌈
• -v — sets the verbose mode on 🔥
• -o — defines the list of protocols. Without a -o option, mstack redefines the default stack for all protocols families. The list of protocols may include the a comma separated sequence of the following items: all, unix (or simply u), ipv4 (4), ipv6 (6), netlink (n), packet (p), bluetooth (b), irda (i), ip (which include all ip related protocols ipv4, ipv6, netlink and packet), #n where n is the number of protocol. Each item can be prefixed by + or - to specify whether the protocol/group of protocols must be added or removed from the set. 🎀

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🧚 EXAMPLES 🧚

• mstack /dev/net/lwip ip addr lists the address managed by the stack mounted on /dev/net/lwip. 📋
• exec mstack /dev/net/null bash disables the standard stack in a new bash (which overcomes the current one). 🙈
• mstack -o ip /dev/net/lwip bash starts a new bash which uses the stack /dev/net/lwip for ipv4 and ipv6 but not for the other protocols. ⭐
• mstack -o -unix /dev/net/lwip bash starts a new bash which uses the stack /dev/net/lwip for all protocols but AF_UNIX. 💜
• mstack -o +ip,-ipv6 /dev/net/lwip bash starts a new bash which uses the stack /dev/net/lwip for ipv4, netlink, packet but not ipv6. 🦋

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👀 SEE ALSO 👀

umview(1), kmview(1), msocket(3), umnetnative(9), umnetnull(9), umnetlwipv6(9), unix(7), ip(7), ipv6(7), netlink(7), packet(7).

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👑 AUTHORS 👑

View-OS is a project of the Computer Science Department, University of Bologna. Project Leader: Renzo Davoli. 🌟

<http://www.sourceforge.net/projects/view-os>

Howto's and further information can be found on the project wiki <wiki.virtualsquare.org>. 📚

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✨ and that's the whole page bestie, no notes, you ate 💅

VIEW-OS: a process with a view — April 23, 2008 🎀 that's the version vibe and the date stamp, mwah, bye! 🦋💖