lukasnellen

Connect host and VM when using a MACVTAP interface

NB: The following is only of interest if you want to share the host network with your virtual machine. The most common way this gets implemented is by setting up a bridge which includes the physical interface. Using a [MACVTAP] inerface is suposed to be more efficient, since it avoids the additional bridge in the network setup.

In this gist, we extend the information provided in the documenation on linux virtual interfaces.

In the following, we assume you host interface is eth0. IP addresses used:

• host: 198.51.100.50/24
• virtual machine: 198.51.100.198/24
• default gateway: 198.51.100.254

mcastelino

Test Target

Devices needed

name "vhost-scsi", bus virtio-bus
name "vhost-user-blk", bus virtio-bus
name "vhost-user-scsi", bus virtio-bus
name "virtio-blk-device", bus virtio-bus

michaeljclark

/*
 * cc -Wall -O3 -c macos-syscall.c -o macos-syscall.o
 * ld -static -macosx_version_min 10.12 -pagezero_size 0x1000 macos-syscall.o -o macos-syscall
 */

__attribute__ ((visibility("default"))) extern void start(void) asm("start");

#define NR_exit 0x2000001
#define NR_write 0x2000004

garybernhardt

Things that programmers don't know but should

(A book that I might eventually write!)

Gary Bernhardt

I imagine each of these chapters being about 2,000 words, making the whole book about the size of a small novel. For comparison, articles in large papers like the New York Times average about 1,200 words. Each topic gets whatever level of detail I can fit into that space. For simple topics, that's a lot of space: I can probably walk through a very basic, but working, implementation of the IP protocol.

alghanmi

"""Podcast Feed Generator
 
Generate an podcast RSS feed for a set of media in a directory.
Use the list-extensions argument to see the list of supported extensions. You can add custom extensions using
 
Usage:
	podcastgen.py gen <directory> --title=<podcast-title> --link=<podcast-link> --desc=<description> [--output=<rss-feed-file>] [--feed-link=<feed-url>] [--id=<podcast-id>] [--logo=<image_file>] [--category=<itunes-category> [--subcategory=<itunes-category>]] [--language=<language>] [--use-extension=<ext>]
	podcastgen.py list-categories
	podcastgen.py list-extensions
	podcastgen.py -h | --help

panzi

// "License": Public Domain
// I, Mathias Panzenböck, place this file hereby into the public domain. Use it at your own risk for whatever you like.
// In case there are jurisdictions that don't support putting things in the public domain you can also consider it to
// be "dual licensed" under the BSD, MIT and Apache licenses, if you want to. This code is trivial anyway. Consider it
// an example on how to get the endian conversion functions on different platforms.

#ifndef PORTABLE_ENDIAN_H__
#define PORTABLE_ENDIAN_H__

#if (defined(_WIN16) || defined(_WIN32) || defined(_WIN64)) && !defined(__WINDOWS__)

mlafeldt

/* This is the original elf.h file from the GNU C Library; I only removed
   the inclusion of feature.h and added definitions of __BEGIN_DECLS and
   __END_DECLS as documented in
   https://cmd.inp.nsk.su/old/cmd2/manuals/gnudocs/gnudocs/libtool/libtool_36.html

   On macOS, simply copy the file to /usr/local/include/. 

   Mathias Lafeldt <[email protected]> */

/* This file defines standard ELF types, structures, and macros.

zliuva

; A minimal Mach-o x64 executable for OS X (also see below Mountain Lion version)
;
; $ nasm -f bin -o tiny_hello tiny_hello.s
; $ chmod +x tiny_hello
; $ ./tiny_hello
; Hello World!
; $

; c.f.
; http://osxbook.com/blog/2009/03/15/crafting-a-tiny-mach-o-executable/ ( the original tiny mach-o executable )