#!/bin/bash # this will superceed the ssh binary in order to source all the config files module_load file # loads find and build_file function ssh_config() { # echo ssh_config $@ local CDIRS local CDIR local DIRS local DIR local PDIRS local RESET local FILE local USEENV declare OPTION declare OPTARG declare OPTIND while getopts 'd:glrf:e' OPTION; do # echo $OPTION $OPTARG case "$OPTION" in d) DIRS=$($OPTARG) PDIRS=true # echo option d: $DIRS ;; f) # todo if file is relative add $HOME/ssh FILE=$OPTARG ;& r) RESET=true rm -f $SSH_CONFIG > /dev/null unset SSH_CONFIG ;; # use environment when sustituting e) USEENV=-e ;; g) shift 1 ssh_config_get $@ return $? ;; l) shift 1 if [[ $1 ]]; then cat $SSH_CONFIG | grep -F "$1" else cat $SSH_CONFIG fi echo -e "\n" return 1 ;; *) echo unknown option $OPTION ;; esac done shift $((OPTIND - 1)) # if more arguments passsed then just get the entry otherwise build the file [[ $1 ]] && ssh_config_get $@ && return $? if [[ (! $SSH_CONFIG || $RESET ) ]]; then [[ -f $SSH_CONFIG ]] && rm "$SSH_CONFIG" SSH_CONFIG=${FILE:-$SSH_CONFIG} export SSH_CONFIG=${SSH_CONFIG:-"$HOME/.ssh/_config"} fi if [[ ! -f $SSH_CONFIG ]]; then mkdir -p "$(dirname "$SSH_CONFIG")" touch $SSH_CONFIG chmod 600 $SSH_CONFIG fi [[ ! $DIRS ]] && DIRS=($BASH_SHELL_NETWORKS_LOADED "$BASH_SHELL_HOST" "$BASH_SHELL_USER_DIR" "$BASH_SHELL_DEV") # echo DIRS "${DIRS[@]}" # echo $SSH_CONFIG CDIRS=() j=0 cnt=${#DIRS[@]} for ((i = 0; i < cnt; i++)); do # echo $i of $cnt # looks in ssh/config subdirectory of each DIRS if not passed DIR="${DIRS[i]}$([[ ! $PDIRS ]] && echo /ssh/config)" # echo ----- $i, ${DIRS[i]} trying $DIR [ -d $DIR ] && CDIRS[j]=$DIR j+=1 || echo no directory $DIR done # CDIRS=("${CDIRS[@]}") # echo ${CDIRS[@]} local HEADER="############################################################## # THIS FILE IS GENERATED BY function ssh_config. Do not edit # # It is created by combination of ssh configuration files # # which are listed in a comment line before each # # It is used by the ssh function which then calls ssh binary # ##############################################################" module_load debug module_load file module_load env echo -e "$HEADER" >$SSH_CONFIG # build_file appends the given file to output file cleanly with checks # append any system config build_file "/etc/ssh/ssh_config" $SSH_CONFIG # echo existing dirs ${CDIRS[@]} # will append any .cfg file found in ssh/config subdir of any BASH_SHELL_DIRS, including home shell # empty temp file > /tmp/${USER}-config.env for CDIR in "${CDIRS[@]}"; do # FILES=$(find -n '*.cfg' -d 0 $CDIR) for f in $(_find -n '*.cfg' -p 'archive off' -d 0 $CDIR); do # echo "adding ssh config file $f"; [[ $f ]] && build_file "$f" $SSH_CONFIG done [[ -f $CDIR/config.env ]] && build_file $CDIR/config.env /tmp/${USER}-config.env done # append any tradtional home config [[ -f "$HOME/.ssh/config" ]] && build_file "$HOME/.ssh/config" $SSH_CONFIG [[ -f "$HOME/.ssh/config.env" ]] && build_file "$HOME/.ssh/config.env" "/tmp/${USER}-config.env" # echo $SSH_CONFIG # cat $SSH_CONFIG # now replace any variables in file # echo sub env # cat /tmp/${USER}-config.env env_subs_file $USEENV -o $SSH_CONFIG "/tmp/${USER}-config.env" rm -f /tmp/${USER}-config.env } ssh_config_get () { local ssh; local cfg; local prop; local all; if [[ $SSH_CONFIG ]]; then [[ ! -f "$SSH_CONFIG" ]] && ssh_config "$SSH_CONFIG" cfg="-F $SSH_CONFIG" fi ssh="$(which ssh) $cfg -G" # echo ssh cmd: "$ssh" # echo $@ local OPTION; local OPTARG; local OPTIND while getopts 'uhpai' OPTION; do # echo processing: option:$OPTION argument:$OPTARG index:$OPTIND remaining:${@:$OPTIND} case "$OPTION" in u) prop=user ;; h) prop=hostname ;; i) prop=identityfile ;; p) prop=port ;; a) all=true ;; *) echo unknown run option -$OPTARG return 3 ;; esac done shift $((OPTIND - 1)) [[ ! $1 ]] && { >&2 echo must pass a config host; return 1; } [[ ! $(cat "$SSH_CONFIG" | grep "[Hh]ost" | grep $1) ]] && >&2 echo "no host alias $1" && return 2 props=$($ssh $1) [[ $all ]] && { echo "$props"; return 0; } [[ $prop ]] && { echo "$props" | grep -m1 -oP "(?<=$prop ).*"; return 0; } [[ $2 ]] && { echo "$props" | grep $2; return 0; } echo host $1 echo user $(echo "$props" | grep -m1 -oP "(?<=user ).*") echo hostname $(echo "$props" | grep -m1 -oP "(?<=hostname ).*") echo port $(echo "$props" | grep -m1 -oP "(?<=port ).*") echo identityfile $(echo "$props" | grep -m1 -oP "(?<=identityfile ).*") } # ssh_config_env () { # SSH_CONFIG_ENV={$SSH_CONFIG_ENV:-$HOME/.ssh/config.env} # SSH_CONFIG_TEMP={$SSH_CONFIG_TEMP:-$HOME/.ssh/.config} # [[ ! -f "$SSH_CONFIG" ]] && ssh_config "$SSH_CONFIG" # if [[ -f $SSH_CONFIG ]]; then # env=[[ -f $SSH_CONFIG_ENV ]] && echo $SSH_CONFIG_ENV || echo "" # env_merge_file $SSH_CONFIG $SSH_CONFIG_ENV > $SSH_CONFIG_TEMP # cfg="-F $SSH_CONFIG_TEMP" # cat $SSH_CONFIG_TEMP | grep -a6 newbox # fi # return # }