130 lines
4.8 KiB
Bash
Executable file
130 lines
4.8 KiB
Bash
Executable file
#!/bin/bash
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[ -z "${SSH_IDENTITIES_DIR+x}" ] && { SSH_IDENTITIES_DIR="${SSH_IDENTITIES_DEFAULT_DIR-${HOME}/.ssh/identities}"; export SSH_IDENTITIES_DIR; }
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[ -z "${SSH_AGENTS_DIR+x}" ] && { SSH_AGENTS_DIR=${SSH_AGENTS_DEFAULT_DIR-~/.ssh/agents}; export SSH_AGENTS_DIR; }
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[ -z "${SSH_AGENT_SOCKETS_DIR+x}" ] && { SSH_AGENT_SOCKETS_DIR=${SSH_AGENT_SOCKETS_DEFAULT_DIR-~/.ssh/agents}; export SSH_AGENT_SOCKETS_DIR; }
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logdebug "SSH_AGENTS_DIR: $SSH_AGENTS_DIR" >&2
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logdebug "SSH_AGENT_SOCKETS_DIR: $SSH_AGENT_SOCKETS_DIR" >&2
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logdebug "SSH_IDENTITIES_DIR: $SSH_IDENTITIES_DIR" >&2
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[ -z "${SSH_AGENTS_DIR-x}" ] || mkdir -vp "$SSH_AGENTS_DIR"
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[ -z "${SSH_AGENT_SOCKETS_DIR-x}" ] || mkdir -vp "$SSH_AGENT_SOCKETS_DIR"
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[ -z "${SSH_IDENTITIES_DIR-x}" ] || mkdir -vp "$SSH_IDENTITIES_DIR"
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agent-start-or-restart () {
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local ssh_identity
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local agentfile
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local agentsocket
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if [ -n "${1+x}" ]; then
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ssh_identity="$1"
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agentfile="${SSH_AGENTS_DIR}/agent-${ssh_identity}-$(hostname)"
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agentsocket="${SSH_AGENT_SOCKETS_DIR}/socket-${ssh_identity}-$(hostname)"
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logdebug "agentfile: $agentfile" >&2
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logdebug "agentsocket: $agentsocket" >&2
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logdebug ssh-identität: $ssh_identity >&2
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if [ -e $agentfile ]; then
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# look if agent is reachable
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# local sshsock sshpid
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# sshsock=$SSH_AUTH_SOCK
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# sshpid=$SSH_AGENT_PID
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# unset SSH_AUTH_SOCK SSH_AGENT_PID
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logdebug "$(/bin/sh -c "unset SSH_AUTH_SOCK SSH_AGENT_PID; . $agentfile >/dev/null 2>&1; ssh-add -l")"
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case $? in
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0|1)
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logdebug "agent is running" >&2
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;;
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2)
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logdebug "agent is not running 1" >&2
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[ -e $agentsocket ] && rm "$agentsocket"
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ssh-agent -a $agentsocket $SSH_AGENT_OPTIONS > $agentfile 2>&2
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logdebug "agent started" >&2
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;;
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esac
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else
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logdebug "agent is not running 2" >&2
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#rm "$agentsocket"
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logdebug ssh-agent -a $agentsocket \> $agentfile
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ssh-agent -a $agentsocket $SSH_AGENT_OPTIONS > $agentfile 2>&2
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logdebug "agent started" >&2
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fi
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loginfo "agent for $ssh_identity: $agentfile"
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echo -n "agent for $ssh_identity: " >&2
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echo $agentfile
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return 0
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else
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logwarn no identity given - exit >&2
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return 1
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fi
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}
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agent-load-identity-keys () {
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local ssh_identity
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local agentfile
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local agentsocket
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local fingerprints
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declare -a fingerprints
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local fingerprint
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local tokenfingerprint
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if [ -n "${1+x}" ]; then
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ssh_identity="$1"
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identitydir=${SSH_IDENTITIES_DIR}/${ssh_identity}
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[ -e "${identitydir}/.config" ] && . "${identitydir}/.config"
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agentfile="${SSH_AGENTS_DIR}/agent-${ssh_identity}-$(hostname)"
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agentsocket="${SSH_AGENT_SOCKETS_DIR}/socket-${ssh_identity}-$(hostname)"
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logdebug "agentfile: $agentfile" >&2
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logdebug "agentsocket: $agentsocket" >&2
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logdebug "ssh-identität: $ssh_identity" >&2
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fingerprints=( $(ssh-runinagent $agentfile "ssh-add -l|awk '{print \$2}'") )
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for key in $(ls ${SSH_IDENTITIES_DIR}/${ssh_identity}|grep -v "pub$\|so$"); do
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logdebug "key: $key"
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fingerprint=$(ssh-keygen -l -f ~/.ssh/identities/bmi/id_ed25519|awk '{print $2}')
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logdebug "${fingerprints[*]} and $fingerprint"
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if [[ ${fingerprints[*]} =~ "$fingerprint" ]]; then
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logdebug "$key is loaded" >&2
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else
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logdebug "$key is not loaded" >&2
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ssh-runinagent $agentfile ssh-add ${SSH_ADD_OPTIONS} ${identitydir}/${key}
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fi
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done
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for token in $(ls ${SSH_IDENTITIES_DIR}/${ssh_identity}|grep "so$"); do
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logdebug "token: $token"
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tokenfingerprint="$(ssh-keygen -l -D $token|tr -s ' '|awk '{print $2}')"
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if [[ ${fingerprints[*]} =~ "$tokenfingerprint" ]]; then
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logdebug "$token is loaded" >&2
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else
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logdebug "$token is not loaded" >&2
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ssh-runinagent $agentfile ssh-add ${SSH_ADD_OPTIONS} -s ${identitydir}/${token}
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fi
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done
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fi
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}
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ssh-runinagent () {
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local agentfile
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local command
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agentfile=${1}
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shift
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sshcommand=${@}
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logdebug "run command »$sshcommand« in agent $agentfile" >&2
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if [ -e "$agentfile" ]; then
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/bin/sh -c "unset SSH_AUTH_SOCK SSH_AGENT_PID; . $agentfile >/dev/null 2>/dev/null; $sshcommand"
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return $?
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else
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logwarn "agentfile not existent" >&2
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return 1
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fi
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}
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agent-start-or-restart $1
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agent-load-identity-keys $1
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exit $?
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