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load keys on agent-start

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Jakobus Schürz 2020-09-21 16:47:59 +02:00
parent ddc89dca6c
commit 26836e6355
1 changed files with 96 additions and 17 deletions
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113
bin/ssh-agent-start-or-restart
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@ -1,7 +1,11 @@
#!/bin/bash
[ -n "${SSH_AGENTS_DIR+x} ] && { AGENTS_DIR=${HOME}/.ssh/agents; export AGENTS_DIR; }
[ -n "${SSH_AGENT_SOCKETS_DIR+x} ] && { AGENTS_DIR=${HOME}/.ssh/agents; export AGENTS_DIR; }
[ -z "${SSH_IDENTITIES_DIR+x}" ] && { SSH_IDENTITIES_DIR="${SSH_IDENTITIES_DEFAULT_DIR-${HOME}/.ssh/identities}"; export SSH_IDENTITIES_DIR; }
[ -z "${SSH_AGENTS_DIR+x}" ] && { SSH_AGENTS_DIR=${SSH_AGENTS_DEFAULT_DIR-~/.ssh/agents}; export SSH_AGENTS_DIR; }
[ -z "${SSH_AGENT_SOCKETS_DIR+x}" ] && { SSH_AGENT_SOCKETS_DIR=${SSH_AGENT_SOCKETS_DEFAULT_DIR-~/.ssh/agents}; export SSH_AGENT_SOCKETS_DIR; }
echo SSH_AGENTS_DIR: $SSH_AGENTS_DIR >&2
echo SSH_AGENT_SOCKETS_DIR: $SSH_AGENT_SOCKETS_DIR >&2
echo SSH_IDENTITIES_DIR: $SSH_IDENTITIES_DIR >&2
agent-start-or-restart () {
local ssh_identity
@ -11,28 +15,41 @@ agent-start-or-restart () {
if [ -n "${1+x}" ]; then
ssh_identity="$1"
agentfile="${SSH_AGENTS_DIR}/agent-${ssh_identity}-$(hostname)"
agentsocket="${SSH_AGENTS_SOCKETS_DIR}/socket-${ssh_identity}-$(hostname)"
agentsocket="${SSH_AGENT_SOCKETS_DIR}/socket-${ssh_identity}-$(hostname)"
echo "agentfile: $agentfile" >&2
echo "agentsocket: $agentsocket" >&2
echo ssh-identität: $ssh_identity >&2
if [ -e $agentsocket ]; then
if [ -e $agentfile ]; then
/bin/sh -c ". $agentfile >/dev/null 2>&1; ssh-add -l >&2; exit $?"
if [ $? -eq 2 ]; then
echo "agent is not running" >&2
rm "$agentsocket"
ssh-agent -a $agentsocket > $agentfile 2>/dev/null
echo "agent started" >&2
else
echo "agent is running" >&2
fi
# look if agent is reachable
# local sshsock sshpid
# sshsock=$SSH_AUTH_SOCK
# sshpid=$SSH_AGENT_PID
# unset SSH_AUTH_SOCK SSH_AGENT_PID
/bin/sh -c "unset SSH_AUTH_SOCK SSH_AGENT_PID; . $agentfile >/dev/null 2>&1; ssh-add -l >&2"
case $? in
0|1)
echo "agent is running" >&2
;;
2)
echo "agent is not running 1" >&2
[ -e $agentsocket ] && rm "$agentsocket"
ssh-agent -a $agentsocket $SSH_AGENT_OPTIONS > $agentfile 2>&2
echo "agent started" >&2
;;
esac
else
echo "agent is not running" >&2
ssh-agent -a $agentsocket > $agentfile 2>/dev/null
echo "agent startet" >&2
echo "agent is not running 2" >&2
#rm "$agentsocket"
echo ssh-agent -a $agentsocket \> $agentfile
ssh-agent -a $agentsocket $SSH_AGENT_OPTIONS > $agentfile 2>&2
echo "agent started" >&2
fi
echo -n "agent for $ssh_identity: " >&2
echo $agentfile
return 0
else
echo no identity given - exit >&2
return 1
@ -41,6 +58,68 @@ agent-start-or-restart () {
}
agent-load-identity-keys () {
local ssh_identity
local agentfile
local agentsocket
local fingerprints
declare -a fingerprints
local fingerprint
local tokenfingerprint
if [ -n "${1+x}" ]; then
ssh_identity="$1"
agentfile="${SSH_AGENTS_DIR}/agent-${ssh_identity}-$(hostname)"
agentsocket="${SSH_AGENT_SOCKETS_DIR}/socket-${ssh_identity}-$(hostname)"
identitydir=${SSH_IDENTITIES_DIR}/${ssh_identity}
echo "agentfile: $agentfile" >&2
echo "agentsocket: $agentsocket" >&2
echo ssh-identität: $ssh_identity >&2
fingerprints=( $(ssh-runinagent $agentfile "ssh-add -l|awk '{print \$2}'") )
for key in $(ls ${SSH_IDENTITIES_DIR}/${ssh_identity}|grep -v "pub$\|so$"); do
echo key: $key
fingerprint=$(ssh-keygen -l -f ~/.ssh/identities/bmi/id_ed25519|awk '{print $2}')
echo ${fingerprints[*]} and $fingerprint
if [[ ${fingerprints[*]} =~ "$fingerprint" ]]; then
echo "$key is loaded" >&2
else
echo "$key is not loaded" >&2
ssh-runinagent $agentfile ssh-add ${SSH_ADD_OPTIONS} ${identitydir}/${key}
fi
done
for token in $(ls ${SSH_IDENTITIES_DIR}/${ssh_identity}|grep "so$"); do
echo token: $token
tokenfingerprint="$(ssh-keygen -l -D $token|tr -s ' '|awk '{print $2}')"
if [[ ${fingerprints[*]} =~ "$tokenfingerprint" ]]; then
echo "$token is loaded" >&2
else
echo "$token is not loaded" >&2
ssh-runinagent $agentfile ssh-add ${SSH_ADD_OPTIONS} -s ${identitydir}/${token}
fi
done
fi
}
ssh-runinagent () {
local agentfile
local command
agentfile=${1}
shift
sshcommand=${@}
echo "run command »$sshcommand« in agent $agentfile" >&2
if [ -e "$agentfile" ]; then
/bin/sh -c "unset SSH_AUTH_SOCK SSH_AGENT_PID; . $agentfile >/dev/null 2>/dev/null; $sshcommand"
return $?
else
echo "agentfile not existent" >&2
return 1
fi
}
agent-start-or-restart $1
agent-load-identity-keys $1
exit $?