forked from ahurac/dotfiles
qemush : suppression, maintenant hébergé dans le repo ahurac/qemush
This commit is contained in:
Hippolyte Chauvin
parent
bf4dd08139
commit
f5a42ddb1e
8 changed files with 0 additions and 282 deletions
124
bin/qemush
124
bin/qemush
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@ -1,124 +0,0 @@
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#!/bin/bash
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exec_as() {
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local user
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user="$1"
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shift
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if [ "$(whoami)" != "$user" ]; then
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exec sudo -u "$user" "$0" "$@"
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else
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cd || exit
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fi
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}
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exec_as qemu "$@"
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bin=bin
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images=images
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if [ -t 1 ]; then
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cat=src-hilite-lesspipe.sh
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else
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cat='cat'
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fi
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PATH="./${bin}:${PATH}"
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EDITOR="${EDITOR:-nvim}"
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alias ls='ls --color=auto'
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alias exec='exec '
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shopt -s expand_aliases
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umask 027
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perror() {
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>&2 printf '\033[1;31mERROR:\033[0m \033[1m%s\033[0m\n' "$*"
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}
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public_help() {
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local name
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name="$(basename "$0")"
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exec cat << EOF
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${name}: usage:
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${name} active - (default behaviour) list active VMs
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${name} start <VM name> - start a VM
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${name} watch <VM name> - attach VM screen session
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${name} ls - list available VMs
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${name} edit <VM name> - edit VM launching script
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${name} rm <VM name> - delete launch script
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${name} diskls - list available disk images
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${name} diskadd <disk name> <size> - create a disk image
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${name} diskrm <disk name> - delete disk image
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${name} shell - start a shell as user qemu
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${name} help - show this help
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EOF
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}
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error_usage() {
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perror "Invalid usage"
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>&2 public_help
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return 1
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}
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public_start() {
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local vm_name="$1"
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shift
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exec screen -S "$vm_name" "$vm_name" "$@"
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}
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public_watch() {
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exec screen -dr "$1"
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}
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public_active() {
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exec screen -ls
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}
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public_ls() {
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echo "Available machines:"
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exec ls "$bin"
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}
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diskpath() {
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printf "%s.qcow2" "${images}/${1}"
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}
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public_diskadd() {
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exec qemu-img create -f qcow2 "$(diskpath "$1")" "$2"
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}
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public_diskrm() {
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exec rm -vi -- "$(diskpath "$1")"
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}
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public_diskls() {
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echo "Available disks:"
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exec ls "$images"
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}
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public_edit() {
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local file="${bin}/${1}"
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"$EDITOR" "$file"
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exec chmod u+x "$file"
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}
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public_rm() {
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exec rm -vi -- "${bin}/${1}"
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}
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public_shell() {
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exec bash -i
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}
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public_cat() {
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exec "$cat" "${bin}/${1}"
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}
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function="$1"
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shift
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if [ -z "$function" ]; then
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public_active
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elif declare -F | cut -d \ -f 3- | grep '^public_' | sed 's/^public_//' | grep -q "^${function}$"; then
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"public_${function}" "$@"
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else
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error_usage
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fi
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@ -1,8 +0,0 @@
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#!/bin/sh -x
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qemu-system-x86_64 \
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-enable-kvm \
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-M q35 \
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-cpu host -smp "$(("$(nproc)" / 2))" \
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-m "$(("$(free | awk '($1 == "Mem:") { print $2 }')" / 2))K" \
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-net nic \
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"$@"
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@ -1,8 +0,0 @@
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#!/bin/sh -x
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exec linux \
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-vga qxl \
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-device virtio-serial \
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-chardev spicevmc,id=vdagent,debug=0,name=vdagent \
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-device virtserialport,chardev=vdagent,name=com.redhat.spice.0 \
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-spice port="$(first-free-port 5900)",addr=127.0.0.1,disable-ticketing=on \
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"$@"
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@ -1,10 +0,0 @@
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#!/bin/sh -x
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exec qemu-system-x86_64 \
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-enable-kvm \
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-M q35 \
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-cpu host -smp "$(("$(nproc)" / 2))" \
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-m "$(("$(free | grep '^Mem:\s' | awk '{ print $NF }')" / 2))K" \
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-device e1000,netdev=net0 \
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-device nec-usb-xhci,id=xhci \
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-device ich9-intel-hda -device hda-duplex \
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"$@"
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@ -1,4 +0,0 @@
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#!/bin/sh -x
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exec redox \
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-vga qxl -spice port="$(first-free-port 5900)",addr=127.0.0.1,disable-ticketing=on \
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"$@"
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@ -1,9 +0,0 @@
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#!/bin/sh -x
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qemu-system-x86_64 \
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-enable-kvm \
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-cpu host -smp "$(("$(nproc)" / 2))" \
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-m "$(("$(free | grep '^Mem: ' | awk '{ print $NF }')" / 2))K" \
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-net nic \
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-device virtio-serial \
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-usbdevice tablet \
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"$@"
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@ -1,7 +0,0 @@
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#!/bin/sh -x
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exec windows \
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-vga qxl \
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-spice port="$(first-free-port 5900)",addr=127.0.0.1,disable-ticketing=on \
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-chardev spicevmc,id=vdagent,name=vdagent \
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-device virtserialport,chardev=vdagent,name=com.redhat.spice.0 \
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"$@"
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@ -1,112 +0,0 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sysexits.h>
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#include <string.h>
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#define MIN_TCP_PORT 1
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#define TCP_TABLE "/proc/net/tcp"
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#define TCP_TABLE_LINE_LENGTH 151
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#define LOCALHOST_HEX "0100007F"
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#define WILDCARD_HEX "00000000"
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#define LISTENING_HEX "0A"
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#define PORTS_BLOCKS_TO_ALLOW 4
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/**
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* Get all the listening TCP ports
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*/
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static unsigned short *get_listening_ports(unsigned short *listening_ports, FILE *tcp_table_fptr) {
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char line[TCP_TABLE_LINE_LENGTH];
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char delimiter[] = " ";
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unsigned short len = 0;
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char *address;
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char *state;
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char *field;
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size_t allowed_for_ports = PORTS_BLOCKS_TO_ALLOW;
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// Skip first line (header)
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fgets(line, sizeof(line), tcp_table_fptr);
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// Tokenize lines one by one
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while (fgets(line, sizeof(line), tcp_table_fptr) != NULL) {
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strtok(line, delimiter);
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address = strtok(NULL, delimiter);
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strtok(NULL, delimiter);
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state = strtok(NULL, delimiter);
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field = strtok(NULL, delimiter);
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while (field != NULL) {
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field = strtok(NULL, delimiter);
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}
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if ((!strncmp(address, LOCALHOST_HEX, 8) || !strncmp(address, WILDCARD_HEX, 8)) && !strncmp(state, LISTENING_HEX, 2)) {
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if (len == allowed_for_ports) {
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allowed_for_ports = allowed_for_ports + PORTS_BLOCKS_TO_ALLOW;
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listening_ports = realloc(listening_ports, allowed_for_ports * sizeof(unsigned short));
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}
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listening_ports[len] = strtol(address + strlen(address) - 4, NULL, 16);
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len++;
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}
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}
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if (len == allowed_for_ports) {
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allowed_for_ports = allowed_for_ports + PORTS_BLOCKS_TO_ALLOW;
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listening_ports = realloc(listening_ports, allowed_for_ports * sizeof(unsigned short));
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}
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listening_ports[len] = 0;
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return listening_ports;
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}
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static unsigned char is_port_available(const unsigned short port, const unsigned short *listening_ports) {
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unsigned short i = 0;
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while (listening_ports[i] != 0 && listening_ports[i] != port) {
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i++;
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}
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return listening_ports[i] == 0;
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}
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static inline unsigned char is_valid_tcp_port(const unsigned short tcp_port) {
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return tcp_port >= MIN_TCP_PORT;
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}
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int main(int argc, char *argv[]) {
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unsigned short current_port;
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if (argc >= 2) {
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current_port = atoi(argv[1]);
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} else {
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current_port = 0;
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}
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if (!is_valid_tcp_port(current_port)) {
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fprintf(stderr, "Provide a valid TCP port number as first argument.\n");
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return EX_USAGE;
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}
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// Open TCP table
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FILE *tcp_table_fptr = fopen(TCP_TABLE, "r");
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if (tcp_table_fptr == NULL) {
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fprintf(stderr, "Error opening the TCP table.\n");
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return EX_OSFILE;
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}
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unsigned short *listening_ports = malloc(PORTS_BLOCKS_TO_ALLOW * sizeof(unsigned short));
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listening_ports = get_listening_ports(listening_ports, tcp_table_fptr);
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// Check if the current port is available, add
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while (!is_port_available(current_port, listening_ports)) {
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current_port++;
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}
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free(listening_ports);
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if (is_valid_tcp_port(current_port)) {
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printf("%d\n", current_port);
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return EXIT_SUCCESS;
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} else {
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fprintf(stderr, "No more ports available. How did you fuck up that bad ???\n");
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return EX_TEMPFAIL;
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}
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}
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