NAME
mstack - networking stack selection
SYNOPSIS
mstack [-u46npbihv] [-f num,num#] stack_mountpoint command
DESCRIPTION
In View-OS multiple networking stacks are available to processes at the
same time. View-OS supports the msocket(2) system call. mstack defines
the default stack (for each address family) that is used when msocket
refers to a NULL pathname for its stack. mstack provides also a
backward compatibility for all the programs using the obsolete
socket(2) system call. 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)" 4
is equivalent to:
"msocket(NULL,domain,type protocol)" 4
mstacks changes the default stack for the desired protocol families and
executes the command (by execve(2)).
OPTIONS
-h prints the mstack command usage
-v sets the verbose mode on
-u redefines the protocol stack for AF_UNIX unix(7)
-4 redefines the protocol stack for AF_INET, i.e. ipv4 ip(7)
-6 redefines the protocol stack for AF_INET6, i.e. ipv6 ipv6(7)
-n redefines the protocol stack for AF_NETLINK netlink(7)
-p redefines the protocol stack for AF_PACKET packet(7)
-b redefines the protocol stack for AF_BLUETOOTH
-i redefines the protocol stack for AF_IRDA
-f num,num...
redefines the protocol stack for the listed protocols (list of
numeric tags).
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).
SEE ALSO
umview(1), kmview(1), msocket(3), umnetnative(9), umnetnull(9),
umnetlwipv6(9), unix(7), ip(7), ipv6(7), netlink(7), packet(7).
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>.