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#!/bin/sh
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# Paths, names and functions definitions
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NSSDB="/etc/pki/nssdb/"
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COOLKEY_NAME="CoolKey PKCS #11 Module"
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COOLKEY_LIBRARY="libcoolkeypk11.so"
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OPENSC_NAME="OpenSC PKCS #11 Module"
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OPENSC_LIBRARY="opensc-pkcs11.so"
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add_module() {
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NAME="$1"
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LIBRARY="$2"
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modutil -add "$NAME" -dbdir "$NSSDB" -libfile "$LIBRARY"
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}
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remove_module() {
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NAME="$1"
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modutil -delete "$NAME" -dbdir "$NSSDB" -force
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}
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# Parse arguments. If wrong, print usage
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TARGET="$1"
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if [ "$TARGET" = "" ]; then
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# Print currently installed module
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PRINT_CURRENT="1"
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elif [ "$TARGET" = "opensc" ] || [ "$TARGET" = "coolkey" ]; then
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: # Correct arguments
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else
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echo "Simple tool to switch between OpenSC and Coolkey PKCS#11 modules in main NSS DB."
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echo "Usage: $0 [coolkey|opensc]"
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echo " [coolkey|opensc] says which of the modules should be used."
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echo " The other one will be removed from database."
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echo
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echo " If there is no argument specified, prints the current module in NSS DB"
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exit 255
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fi
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if [ ! -x /usr/bin/modutil ]; then
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echo "The modutil is not installed. Please install package nss-util"
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exit 255
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fi
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# Find the current library in NSS DB
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CURRENT="" # none
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LIBS=$(modutil -rawlist -dbdir "$NSSDB" | grep "^library=")
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if echo "$LIBS" | grep "$COOLKEY_NAME" > /dev/null; then
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CURRENT="coolkey"
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fi
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if echo "$LIBS" | grep "$OPENSC_NAME" > /dev/null; then
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if [ -n "$CURRENT" ]; then
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CURRENT="opensc coolkey"
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echo "There are both modules in NSS DB, which is not recommended."
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echo "I will remove the other."
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else
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CURRENT="opensc"
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fi
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fi
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if [ "$PRINT_CURRENT" = "1" ]; then
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echo "$CURRENT"
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exit 0
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fi
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# Do we need to change something?
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if [ "$CURRENT" = "$TARGET" ]; then
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echo "The requested module is already in the NSS DB"
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exit 0
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fi
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# Do the actual change
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if [ "$TARGET" = "opensc" ]; then
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add_module "$OPENSC_NAME" "$OPENSC_LIBRARY"
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remove_module "$COOLKEY_NAME"
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fi
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if [ "$TARGET" = "coolkey" ]; then
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add_module "$COOLKEY_NAME" "$COOLKEY_LIBRARY"
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remove_module "$OPENSC_NAME"
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fi
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