69 lines
2.5 KiB
Plaintext
69 lines
2.5 KiB
Plaintext
$NetBSD: README.dirs,v 1.12 2013/01/08 13:12:26 pooka Exp $
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The following is a quick rundown of the current directory structure.
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First, components in the kernel namespace, i.e. compiled with -D_KERNEL
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sys/rump/librump - rump kernel base and factions
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/rumpkern - kernel core, e.g. syscall, interrupt and lock support
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/rumpdev - device support, e.g. autoconf subsystem
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/rumpnet - networking support and sockets layer
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/rumpvfs - file system support
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sys/rump/include
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/machine - used for architectures where the rump kernel ABI is not yet the
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same as the kernel module ABI. will eventually disappear
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completely
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/rump - kernel headers installed to userspace
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sys/rump/dev - device components, e.g. audio, raidframe, usb drivers
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sys/rump/fs - file system components
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/lib/lib${fs} - kernel file system code
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sys/rump/net - networking components
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/lib/libnet - subroutines from sys/net, e.g. route and if_ethersubr
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/lib/libnetinet - TCP/IP
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/lib/libvirtif - a virtual interface which uses host tap(4) to shovel
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packets. This is used by netinet and if_ethersubr.
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/lib/libshmif - a virtual interface which uses a memory mapped file
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as an ethernet bus. works completely unprivileged.
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/lib/libsockin - implements PF_INET using host kernel sockets. This is
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mutually exclusive with net, netinet and virtif.
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The rest are out-of-kernel components (i.e. no -D_KERNEL).
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hypercall interface:
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src/lib/librumpuser
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The "rumpuser" hypercall interfaces are used by a rump kernel to
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access host resources.
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remote client interface:
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src/lib/librumpclient
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The rumpclient library provides remote access to rump kernel servers.
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system call hijacking:
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src/lib/librumphijack
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The rumphijack library allows intercepting system calls and redirecting
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them to a rump kernel server instead of the host kernel. In other
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words, it allows existing binaries to request indicated services from
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a rump kernel instead of from the host kernel.
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Users:
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src/lib
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/libp2k - puffs-to-vfs adaption layer, userspace namespace
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/libukfs - user kernel file system, a library to access file system
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images (or devices) directly in userspace without going
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through a system call and puffs. It provides a slightly
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higher interface than syscalls.
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src/usr.sbin/puffs
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rump_$fs - userspace file system daemons using the kernel fs code
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src/share/examples/rump
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Various examples detailing use of rump kernels in different scenarios.
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These are provided source-only.
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