# #
###############################################################################
-VPN_SECURITY_POLICIES_CONFIG_SETTINGS="CIPHER COMPRESSION GROUP_TYPE INTEGRITY KEY_EXCHANGE LIFETIME PFS"
-VPN_SECURITY_POLICIES_READONLY="system"
+VPN_SECURITY_POLICIES_CONFIG_SETTINGS="CIPHERS COMPRESSION GROUP_TYPES \
+ INTEGRITIES PSEUDO_RANDOM_FUNCTIONS KEY_EXCHANGE LIFETIME PFS"
+VPN_SECURITY_POLICIES_READONLY="system performance"
VPN_DEFAULT_SECURITY_POLICY="system"
-VPN_SUPPORTED_CIPHERS="AES192 AES256 AES512"
-VPN_SUPPORTED_INTEGRITY="SHA512 SHA256 SHA128"
-VPN_SUPPORTED_GROUP_TYPES="MODP8192 MODP4096"
+declare -A VPN_SUPPORTED_CIPHERS=(
+ # 3DES-CBC
+ [3DES-CBC]="168 bit 3DES-EDE-CBC"
+
+ # AES-CBC
+ [AES256-CBC]="256 bit AES-CBC"
+ [AES192-CBC]="192 bit AES-CBC"
+ [AES128-CBC]="128 bit AES-CBC"
+
+ # AES-CTR
+ [AES256-CTR]="256 bit AES-COUNTER"
+ [AES192-CTR]="192 bit AES-COUNTER"
+ [AES128-CTR]="128 bit AES-COUNTER"
+
+ # AES-GCM
+ [AES256-GCM128]="256 bit AES-GCM with 128 bit ICV"
+ [AES192-GCM128]="192 bit AES-GCM with 128 bit ICV"
+ [AES128-GCM128]="128 bit AES-GCM with 128 bit ICV"
+ [AES256-GCM96]="256 bit AES-GCM with 96 bit ICV"
+ [AES192-GCM96]="192 bit AES-GCM with 96 bit ICV"
+ [AES128-GCM96]="128 bit AES-GCM with 96 bit ICV"
+ [AES256-GCM64]="256 bit AES-GCM with 64 bit ICV"
+ [AES192-GCM64]="192 bit AES-GCM with 64 bit ICV"
+ [AES128-GCM64]="128 bit AES-GCM with 64 bit ICV"
+
+ # AES-CCM
+ [AES256-CCM128]="256 bit AES-CCM with 128 bit ICV"
+ [AES192-CCM128]="192 bit AES-CCM with 128 bit ICV"
+ [AES128-CCM128]="128 bit AES-CCM with 128 bit ICV"
+ [AES256-CCM96]="256 bit AES-CCM with 96 bit ICV"
+ [AES192-CCM96]="192 bit AES-CCM with 96 bit ICV"
+ [AES128-CCM96]="128 bit AES-CCM with 96 bit ICV"
+ [AES256-CCM64]="256 bit AES-CCM with 64 bit ICV"
+ [AES192-CCM64]="192 bit AES-CCM with 64 bit ICV"
+ [AES128-CCM64]="128 bit AES-CCM with 64 bit ICV"
+
+ # CAMELLIA-CBC
+ [CAMELLIA256-CBC]="256 bit CAMELLIA-CBC"
+ [CAMELLIA192-CBC]="192 bit CAMELLIA-CBC"
+ [CAMELLIA128-CBC]="128 bit CAMELLIA-CBC"
+
+ # CAMELLIA-CTR
+ [CAMELLIA256-CTR]="256 bit CAMELLIA-COUNTER"
+ [CAMELLIA192-CTR]="192 bit CAMELLIA-COUNTER"
+ [CAMELLIA128-CTR]="128 bit CAMELLIA-COUNTER"
+
+ # CAMELLIA-GCM
+ [CAMELLIA256-GCM128]="256 bit CAMELLIA-GCM with 128 bit ICV"
+ [CAMELLIA192-GCM128]="192 bit CAMELLIA-GCM with 128 bit ICV"
+ [CAMELLIA128-GCM128]="128 bit CAMELLIA-GCM with 128 bit ICV"
+ [CAMELLIA256-GCM96]="256 bit CAMELLIA-GCM with 96 bit ICV"
+ [CAMELLIA192-GCM96]="192 bit CAMELLIA-GCM with 96 bit ICV"
+ [CAMELLIA128-GCM96]="128 bit CAMELLIA-GCM with 96 bit ICV"
+ [CAMELLIA256-GCM64]="256 bit CAMELLIA-GCM with 64 bit ICV"
+ [CAMELLIA192-GCM64]="192 bit CAMELLIA-GCM with 64 bit ICV"
+ [CAMELLIA128-GCM64]="128 bit CAMELLIA-GCM with 64 bit ICV"
+
+ # CAMELLIA-CCM
+ [CAMELLIA256-CCM128]="256 bit CAMELLIA-CCM with 128 bit ICV"
+ [CAMELLIA192-CCM128]="192 bit CAMELLIA-CCM with 128 bit ICV"
+ [CAMELLIA128-CCM128]="128 bit CAMELLIA-CCM with 128 bit ICV"
+ [CAMELLIA256-CCM96]="256 bit CAMELLIA-CCM with 96 bit ICV"
+ [CAMELLIA192-CCM96]="192 bit CAMELLIA-CCM with 96 bit ICV"
+ [CAMELLIA128-CCM96]="128 bit CAMELLIA-CCM with 96 bit ICV"
+ [CAMELLIA256-CCM64]="256 bit CAMELLIA-CCM with 64 bit ICV"
+ [CAMELLIA192-CCM64]="192 bit CAMELLIA-CCM with 64 bit ICV"
+ [CAMELLIA128-CCM64]="128 bit CAMELLIA-CCM with 64 bit ICV"
+
+ # DJB
+ [CHACHA20-POLY1305]="256 bit ChaCha20/Poly1305 with 128 bit ICV"
+
+ # No Encryption
+ [NULL]="No Encryption"
+)
+
+declare -A CIPHER_TO_STRONGSWAN=(
+ # 3DES-CBC
+ [3DES-CBC]="3des"
+
+ # AES-CBC
+ [AES256-CBC]="aes256"
+ [AES192-CBC]="aes192"
+ [AES128-CBC]="aes128"
+
+ # AES-CTR
+ [AES256-CTR]="aes256ctr"
+ [AES192-CTR]="aes192ctr"
+ [AES128-CTR]="aes128ctr"
+
+ # AES-GCM
+ [AES256-GCM128]="aes256gcm128"
+ [AES192-GCM128]="aes192gcm128"
+ [AES128-GCM128]="aes128gcm128"
+ [AES256-GCM96]="aes256gcm96"
+ [AES192-GCM96]="aes192gcm96"
+ [AES128-GCM96]="aes128gcm96"
+ [AES256-GCM64]="aes256gcm64"
+ [AES192-GCM64]="aes192gcm64"
+ [AES128-GCM64]="aes128gcm64"
+
+ # AES-CCM
+ [AES256-CCM128]="aes256ccm128"
+ [AES192-CCM128]="aes192ccm128"
+ [AES128-CCM128]="aes128ccm128"
+ [AES256-CCM96]="aes256ccm96"
+ [AES192-CCM96]="aes192ccm96"
+ [AES128-CCM96]="aes128ccm96"
+ [AES256-CCM64]="aes256ccm64"
+ [AES192-CCM64]="aes192ccm64"
+ [AES128-CCM64]="aes128ccm64"
+
+ # CAMELLIA-CBC
+ [CAMELLIA256-CBC]="camellia256"
+ [CAMELLIA192-CBC]="camellia192"
+ [CAMELLIA128-CBC]="camellia128"
+
+ # CAMELLIA-CTR
+ [CAMELLIA256-CTR]="camellia256ctr"
+ [CAMELLIA192-CTR]="camellia192ctr"
+ [CAMELLIA128-CTR]="camellia128ctr"
+
+ # CAMELLIA-GCM
+ [CAMELLIA256-GCM128]="camellia256gcm128"
+ [CAMELLIA192-GCM128]="camellia192gcm128"
+ [CAMELLIA128-GCM128]="camellia128gcm128"
+ [CAMELLIA256-GCM96]="camellia256gcm96"
+ [CAMELLIA192-GCM96]="camellia192gcm96"
+ [CAMELLIA128-GCM96]="camellia128gcm96"
+ [CAMELLIA256-GCM64]="camellia256gcm64"
+ [CAMELLIA192-GCM64]="camellia192gcm64"
+ [CAMELLIA128-GCM64]="camellia128gcm64"
+
+ # CAMELLIA-CCM
+ [CAMELLIA256-CCM128]="camellia256ccm128"
+ [CAMELLIA192-CCM128]="camellia192ccm128"
+ [CAMELLIA128-CCM128]="camellia128ccm128"
+ [CAMELLIA256-CCM96]="camellia256ccm96"
+ [CAMELLIA192-CCM96]="camellia192ccm96"
+ [CAMELLIA128-CCM96]="camellia128ccm96"
+ [CAMELLIA256-CCM64]="camellia256ccm64"
+ [CAMELLIA192-CCM64]="camellia192ccm64"
+ [CAMELLIA128-CCM64]="camellia128ccm64"
+
+ # DJB
+ [CHACHA20-POLY1305]="chacha20poly1305"
+
+ # No Encryption
+ [NULL]="null"
+)
+
+declare -A VPN_SUPPORTED_PSEUDO_RANDOM_FUNCTIONS=(
+ [MD5]="MD5"
+
+ # SHA
+ [SHA1]="SHA1"
+ [SHA256]="SHA256"
+ [SHA384]="SHA384"
+ [SHA512]="SHA512"
+
+ # AES
+ [AES-XCBC]="AES-XCBC"
+ [AES-CMAC]="AES-CMAC"
+)
+
+declare -A PSEUDO_RANDOM_FUNCTION_TO_STRONGSWAN=(
+ [MD5]="prfmd5"
+
+ # SHA
+ [SHA1]="prfsha1"
+ [SHA256]="prfsha256"
+ [SHA384]="prfsha384"
+ [SHA512]="prfsha512"
+
+ # AES
+ [AES-XCBC]="prfaesxcbc"
+ [AES-CMAC]="prfaescmac"
+)
+
+declare -A VPN_SUPPORTED_INTEGRITIES=(
+ [MD5]="MD5-HMAC"
+
+ # SHA
+ [SHA1]="SHA1-HMAC"
+ [SHA512]="512 bit SHA2-HMAC"
+ [SHA384]="384 bit SHA2-HMAC"
+ [SHA256]="256 bit SHA2-HMAC"
+
+ # AES
+ [AES-XCBC]="AES-XCBC"
+ [AES-CMAC]="AES-CMAC"
+ [AES256-GMAC]="256 bit AES-GMAC"
+ [AES192-GMAC]="192 bit AES-GMAC"
+ [AES128-GMAC]="128 bit AES-GMAC"
+)
+
+declare -A INTEGRITY_TO_STRONGSWAN=(
+ [MD5]="md5"
+
+ # SHA
+ [SHA1]="sha1"
+ [SHA512]="sha512"
+ [SHA384]="sha384"
+ [SHA256]="sha256"
+
+ # AES
+ [AES-XCBC]="aesxcbc"
+ [AES-CMAC]="aescmac"
+ [AES256-GMAC]="aes256gmac"
+ [AES192-GMAC]="aes192gmac"
+ [AES128-GMAC]="aes128gmac"
+)
+
+declare -A VPN_SUPPORTED_GROUP_TYPES=(
+ # Regular Groups
+ [MODP768]="768 bit Modulo Prime Group"
+ [MODP1024]="1024 bit Modulo Prime Group"
+ [MODP1536]="1536 bit Modulo Prime Group"
+ [MODP2048]="2048 bit Modulo Prime Group"
+ [MODP3072]="3072 bit Modulo Prime Group"
+ [MODP4096]="4096 bit Modulo Prime Group"
+ [MODP6144]="6144 bit Modulo Prime Group"
+ [MODP8192]="8192 bit Modulo Prime Group"
+
+ # NIST Elliptic Curve Groups
+ [ECP192]="192 bit NIST Elliptic Curve Group"
+ [ECP224]="224 bit NIST Elliptic Curve Group"
+ [ECP256]="256 bit NIST Elliptic Curve Group"
+ [ECP384]="384 bit NIST Elliptic Curve Group"
+ [ECP521]="521 bit NIST Elliptic Curve Group"
+
+ # Brainpool Elliptic Curve Groups
+ [ECP224BP]="224 bit Brainpool Elliptic Curve Group"
+ [ECP256BP]="256 bit Brainpool Elliptic Curve Group"
+ [ECP384BP]="384 bit Brainpool Elliptic Curve Group"
+ [ECP512BP]="512 bit Brainpool Elliptic Curve Group"
+
+ # Curve25519
+ [CURVE25519]="256 bit Elliptic Curve 25519"
+
+ # Curve448
+ [CURVE448]="224 bit Elliptic Curve 448"
+)
+
+declare -A GROUP_TYPE_TO_STRONGSWAN=(
+ # Regular Groups
+ [MODP768]="modp768"
+ [MODP1024]="modp1024"
+ [MODP1536]="modp1536"
+ [MODP2048]="modp2048"
+ [MODP3072]="modp3072"
+ [MODP4096]="modp4096"
+ [MODP6144]="modp6144"
+ [MODP8192]="modp8192"
+
+ # NIST Elliptic Curve Groups
+ [ECP192]="ecp192"
+ [ECP224]="ecp224"
+ [ECP256]="ecp256"
+ [ECP384]="ecp384"
+ [ECP521]="ecp521"
+
+ # Brainpool Elliptic Curve Groups
+ [ECP224BP]="ecp224bp"
+ [ECP256BP]="ecp256bp"
+ [ECP384BP]="ecp384bp"
+ [ECP512BP]="ecp512bp"
+
+ # More Curves
+ [CURVE25519]="curve25519"
+ [CURVE448]="curve448"
+)
+
+cli_vpn_security_policies() {
+ local action
+ local security_policy
+
+ if vpn_security_policy_exists ${1}; then
+ security_policy=${1}
+ key=${2}
+ shift 2
+
+ case "${key}" in
+ ciphers|compression|integrities|lifetime|pfs|show)
+ vpn_security_policies_${key} ${security_policy} "$@"
+ ;;
+ pseudo-random-functions)
+ vpn_security_policies_pseudo_random_functions "${security_policy}" "$@"
+ ;;
+ group-types)
+ vpn_security_policies_group_types ${security_policy} "$@"
+ ;;
+ key-exchange)
+ vpn_security_policies_key_exchange ${security_policy} "$@"
+ ;;
+ *)
+ error "Unrecognized argument: ${key}"
+ exit ${EXIT_ERROR}
+ ;;
+ esac
+ else
+ action=${1}
+ shift
+
+ case "${action}" in
+ new)
+ vpn_security_policies_new "$@"
+ ;;
+ destroy)
+ vpn_security_policies_destroy "$@"
+ ;;
+ ""|*)
+ if [ -n "${action}" ]; then
+ error "Unrecognized argument: '${action}'"
+ fi
+ exit ${EXIT_ERROR}
+ ;;
+ esac
+ fi
+}
# This functions checks if a policy is readonly
# returns true when yes and false when no
return ${EXIT_ERROR}
fi
- # TODO everytime we successfully write a config we should call some trigger to take the changes into effect
+ if ! vpn_security_policies_reload ${name}; then
+ log WARNING "Could not reload the IPsec connection using this security policy"
+ return ${EXIT_ERROR}
+ fi
+}
+
+# reload IPsec connections using a special policy
+vpn_security_policies_reload() {
+ local name=${1}
+
+ local connection
+ for connection in $(ipsec_list_connections); do
+ local SECURITY_POLICY ENABLED
+
+ if ! ipsec_connection_read_config "${connection}" "SECURITY_POLICY"; then
+ continue
+ fi
+
+ if [[ "${SECURITY_POLICY}" = "${name}" ]] && enabled ENABLED; then
+ if ! ipsec_connection_to_strongswan "${connection}"; then
+ log ERROR "Could not generate strongswan config for ${connnection}"
+ fi
+ fi
+ done
+
+ ipsec_strongswan_load
}
# This funtion writes the value for one key to a via ${name} specificated vpn security policy configuration file
if [ $# -eq 0 ] && [ -n "${VPN_SECURITY_POLICIES_CONFIG_SETTINGS}" ]; then
list_append args ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS}
else
- list_append args $@
+ list_append args "$@"
fi
local path="$(vpn_security_policies_path ${name})"
# This could be done in a loop but a loop is much more complicated
# because we print 'Group Types' but the variable is named 'GROUP_TYPES'
cli_print_fmt1 1 "Ciphers:"
- cli_print_fmt1 2 "${CIPHER}"
+ local cipher
+ for cipher in ${CIPHERS}; do
+ cli_print_fmt1 2 "${VPN_SUPPORTED_CIPHERS[${cipher}]-${cipher}}"
+ done
cli_space
cli_print_fmt1 1 "Integrity:"
- cli_print_fmt1 2 "${INTEGRITY}"
+ local integrity
+ for integrity in ${INTEGRITIES}; do
+ cli_print_fmt1 2 "${VPN_SUPPORTED_INTEGRITIES[${integrity}]-${integrity}}"
+ done
+ cli_space
+
+ cli_print_fmt1 1 "Pseudo Random Functions:"
+ local prf
+ for prf in ${PSEUDO_RANDOM_FUNCTIONS}; do
+ cli_print_fmt1 2 "${VPN_SUPPORTED_PSEUDO_RANDOM_FUNCTIONS[${prf}]-${prf}}"
+ done
cli_space
cli_print_fmt1 1 "Group Types:"
- cli_print_fmt1 2 "${GROUP_TYPE}"
+ local group_type
+ for group_type in ${GROUP_TYPES}; do
+ cli_print_fmt1 2 "${VPN_SUPPORTED_GROUP_TYPES[${group_type}]-${group_type}}"
+ done
cli_space
cli_print_fmt1 1 "Key Exchange:" "${KEY_EXCHANGE}"
# This function parses the parameters for the 'cipher' command
-vpn_security_policies_cipher(){
+vpn_security_policies_ciphers() {
local name=${1}
shift
return ${EXIT_ERROR}
fi
- local CIPHER
- if ! vpn_security_policies_read_config ${name} "CIPHER"; then
+ local CIPHERS
+ if ! vpn_security_policies_read_config ${name} "CIPHERS"; then
return ${EXIT_ERROR}
fi
# Remove duplicated entries to proceed the list safely
- CIPHER="$(list_unique ${CIPHER})"
+ CIPHERS="$(list_unique ${CIPHERS})"
+
+ local ciphers_added
+ local ciphers_removed
+ local ciphers_set
while [ $# -gt 0 ]; do
- case "${1}" in
+ local arg="${1}"
+
+ case "${arg}" in
+ +*)
+ list_append ciphers_added "${arg:1}"
+ ;;
-*)
- value=${1#-}
- # Check if the cipher is in the list of ciphers and
- # check if the list has after removing this cipher at least one valid value
- if list_match ${value} ${CIPHER}; then
- list_remove CIPHER ${value}
- else
- # We do not break here because this error does not break the processing of the next maybe valid values.
- log ERROR "Can not remove ${value} from the list of Ciphers because ${value} is not in the list."
- fi
+ list_append ciphers_removed "${arg:1}"
;;
- +*)
- value=${1#+}
- # Check if the Ciphers is in the list of supported ciphers.
- if ! isoneof value ${VPN_SUPPORTED_CIPHERS}; then
- # We do not break here because this error does not break the processing of the next maybe valid values.
- log ERROR "${value} is not a supported cipher and can thats why not added to the list of ciphers."
- else
- if list_match ${value} ${CIPHER}; then
- log WARNING "${value} is already in the list of ciphers of this policy."
- else
- list_append CIPHER ${value}
- fi
- fi
+ [A-Z0-9]*)
+ list_append ciphers_set "${arg}"
+ ;;
+ *)
+ error "Invalid argument: ${arg}"
+ return ${EXIT_ERROR}
;;
esac
shift
done
- # Check if the list contain at least one valid cipher
- if [ $(list_length ${CIPHER}) -ge 1 ]; then
- if ! vpn_security_policies_write_config_key ${name} "CIPHER" ${CIPHER}; then
- log ERROR "The changes for the vpn security policy ${name} could not be written."
- fi
+ # Check if the user is trying a mixed operation
+ if ! list_is_empty ciphers_set && (! list_is_empty ciphers_added || ! list_is_empty ciphers_removed); then
+ error "You cannot reset the cipher list and add or remove ciphers at the same time"
+ return ${EXIT_ERROR}
+ fi
+
+ # Set new cipher list
+ if ! list_is_empty ciphers_set; then
+ # Check if all ciphers are valid
+ local cipher
+ for cipher in ${ciphers_set}; do
+ if ! vpn_security_policies_cipher_supported ${cipher}; then
+ error "Unsupported cipher: ${cipher}"
+ return ${EXIT_ERROR}
+ fi
+ done
+
+ CIPHERS="${ciphers_set}"
+
+ # Perform incremental updates
else
- log ERROR "After proceding all ciphers the list is empty and thats why no changes are written."
+ local cipher
+
+ # Perform all removals
+ for cipher in ${ciphers_removed}; do
+ if ! list_remove CIPHERS ${cipher}; then
+ warning "${cipher} was not on the list and could not be removed"
+ fi
+ done
+
+ for cipher in ${ciphers_added}; do
+ if vpn_security_policies_cipher_supported ${cipher}; then
+ if ! list_append_unique CIPHERS ${cipher}; then
+ warning "${cipher} is already on the cipher list"
+ fi
+ else
+ warning "${cipher} is unknown or unsupported and could not be added"
+ fi
+ done
+ fi
+
+ # Check if the list contain at least one valid cipher
+ if list_is_empty CIPHERS; then
+ error "Cannot save an empty cipher list"
return ${EXIT_ERROR}
fi
+
+ # Save everything
+ if ! vpn_security_policies_write_config_key ${name} "CIPHERS" ${CIPHERS}; then
+ log ERROR "The changes for the vpn security policy ${name} could not be written."
+ fi
+
+ cli_headline 1 "Current cipher list for ${name}:"
+ for cipher in ${CIPHERS}; do
+ cli_print_fmt1 1 "${cipher}" "${VPN_SUPPORTED_CIPHERS[${cipher}]}"
+ done
}
# This function parses the parameters for the 'compression' command
}
# This function parses the parameters for the 'group-type' command
-vpn_security_policies_group_type(){
+vpn_security_policies_group_types() {
local name=${1}
shift
return ${EXIT_ERROR}
fi
- local GROUP_TYPE
- if ! vpn_security_policies_read_config ${name} "GROUP_TYPE"; then
+ local GROUP_TYPES
+ if ! vpn_security_policies_read_config ${name} "GROUP_TYPES"; then
return ${EXIT_ERROR}
fi
# Remove duplicated entries to proceed the list safely
- GROUP_TYPE="$(list_unique ${GROUP_TYPE})"
+ GROUP_TYPES="$(list_unique ${GROUP_TYPES})"
+
+ local group_types_added
+ local group_types_removed
+ local group_types_set
while [ $# -gt 0 ]; do
- case "${1}" in
+ local arg="${1}"
+
+ case "${arg}" in
+ +*)
+ list_append group_types_added "${arg:1}"
+ ;;
-*)
- value=${1#-}
- # Check if the group type is in the list of group types and
- # check if the list has after removing this group type at leatst one valid value
- if list_match ${value} ${GROUP_TYPE}; then
- list_remove GROUP_TYPE ${value}
- else
- # We do not break here because this error does not break the processing of the next maybe valid values.
- log ERROR "Can not remove ${value} from the list of group types because ${value} is not in the list."
- fi
+ list_append group_types_removed "${arg:1}"
;;
- +*)
- value=${1#+}
- # Check if the group type is in the list of supported group types.
- if ! isoneof value ${VPN_SUPPORTED_GROUP_TYPES}; then
- # We do not break here because the processing of other maybe valid values are indepent from this error.
- log ERROR "${value} is not a supported group type and can thats why not added to the list of group types."
- else
- if list_match ${value} ${GROUP_TYPE}; then
- log WARNING "${value} is already in the list of group-types of this policy."
- else
- list_append GROUP_TYPE ${value}
- fi
- fi
+ [A-Z0-9]*)
+ list_append group_types_set "${arg}"
+ ;;
+ *)
+ error "Invalid argument: ${arg}"
+ return ${EXIT_ERROR}
;;
esac
shift
done
- # Check if the list contain at least one valid group-type
- if [ $(list_length ${GROUP_TYPE}) -ge 1 ]; then
- if ! vpn_security_policies_write_config_key ${name} "GROUP_TYPE" ${GROUP_TYPE}; then
- log ERROR "The changes for the vpn security policy ${name} could not be written."
- fi
+ # Check if the user is trying a mixed operation
+ if ! list_is_empty group_types_set && (! list_is_empty group_types_added || ! list_is_empty group_types_removed); then
+ error "You cannot reset the group type list and add or remove group types at the same time"
+ return ${EXIT_ERROR}
+ fi
+
+ # Set new group type list
+ if ! list_is_empty group_types_set; then
+ # Check if all group types are valid
+ local group_type
+ for group_type in ${group_types_set}; do
+ if ! vpn_security_policies_group_type_supported ${group_type}; then
+ error "Unsupported group type: ${group_type}"
+ return ${EXIT_ERROR}
+ fi
+ done
+
+ GROUP_TYPES="${group_types_set}"
+
+ # Perform incremental updates
else
- log ERROR "After proceding all group types the list is empty and thats why no changes are written."
+ local group_type
+
+ # Perform all removals
+ for group_type in ${group_types_removed}; do
+ if ! list_remove GROUP_TYPES ${group_type}; then
+ warning "${group_type} was not on the list and could not be removed"
+ fi
+ done
+
+ for group_type in ${group_types_added}; do
+ if vpn_security_policies_group_type_supported ${group_type}; then
+ if ! list_append_unique GROUP_TYPES ${group_type}; then
+ warning "${group_type} is already on the group type list"
+ fi
+ else
+ warning "${group_type} is unknown or unsupported and could not be added"
+ fi
+ done
+ fi
+
+ # Check if the list contain at least one valid group_type
+ if list_is_empty GROUP_TYPES; then
+ error "Cannot save an empty group type list"
return ${EXIT_ERROR}
fi
+
+ # Save everything
+ if ! vpn_security_policies_write_config_key ${name} "GROUP_TYPES" ${GROUP_TYPES}; then
+ log ERROR "The changes for the vpn security policy ${name} could not be written."
+ fi
+
+ cli_headline 1 "Current group type list for ${name}:"
+ for group_type in ${GROUP_TYPES}; do
+ cli_print_fmt1 1 "${group_type}" "${VPN_SUPPORTED_GROUP_TYPES[${group_type}]}"
+ done
}
# This function parses the parameters for the 'integrity' command
-vpn_security_policies_integrity(){
+vpn_security_policies_integrities() {
local name=${1}
shift
if [ $# -eq 0 ]; then
- log ERROR "You must pass at least one value after integrity."
+ log ERROR "You must pass at least one value"
return ${EXIT_ERROR}
fi
- local INTEGRITY
- if ! vpn_security_policies_read_config ${name} "INTEGRITY"; then
+ local INTEGRITIES
+ if ! vpn_security_policies_read_config ${name} "INTEGRITIES"; then
return ${EXIT_ERROR}
fi
# Remove duplicated entries to proceed the list safely
- INTEGRITY="$(list_unique ${INTEGRITY})"
+ INTEGRITIES="$(list_unique ${INTEGRITIES})"
+
+ local integritys_added
+ local integritys_removed
+ local integritys_set
while [ $# -gt 0 ]; do
- case "${1}" in
+ local arg="${1}"
+
+ case "${arg}" in
+ +*)
+ list_append integritys_added "${arg:1}"
+ ;;
-*)
- value=${1#-}
- # Check if the integrity hash is in the list of integrity hashes and
- # check if the list has after removing this integrity hash at least one valid value
- if list_match ${value} ${INTEGRITY}; then
- list_remove INTEGRITY ${value}
- else
- # We do not break here because the processing of other maybe valid values are indepent from this error.
- log ERROR "Can not remove ${value} from the list of integrity hashes because ${value} is not in the list."
- fi
+ list_append integritys_removed "${arg:1}"
;;
- +*)
- value=${1#+}
- # Check if the Ciphers is in the list of supported integrity hashes.
- if ! isoneof value ${VPN_SUPPORTED_INTEGRITY}; then
- # We do not break here because the processing of other maybe valid values are indepent from this error.
- log ERROR "${value} is not a supported integrity hash and can thats why not added to the list of integrity hashes."
- else
- if list_match ${value} ${INTEGRITY}; then
- log WARNING "${value} is already in the list of integrety hashes of this policy."
- else
- list_append INTEGRITY ${value}
- fi
+ [A-Z0-9]*)
+ list_append integritys_set "${arg}"
+ ;;
+ *)
+ error "Invalid argument: ${arg}"
+ return ${EXIT_ERROR}
+ ;;
+ esac
+ shift
+ done
+
+ # Check if the user is trying a mixed operation
+ if ! list_is_empty integritys_set && (! list_is_empty integritys_added || ! list_is_empty integritys_removed); then
+ error "You cannot reset the integrity hashes list and add or remove integrity hashes at the same time"
+ return ${EXIT_ERROR}
+ fi
+
+ # Set new integrity list
+ if ! list_is_empty integritys_set; then
+ # Check if all integrity hashes are valid
+ local integrity
+ for integrity in ${integritys_set}; do
+ if ! vpn_security_policies_integrity_supported ${integrity}; then
+ error "Unsupported integrity hash: ${integrity}"
+ return ${EXIT_ERROR}
+ fi
+ done
+
+ INTEGRITIES="${integritys_set}"
+
+ # Perform incremental updates
+ else
+ local integrity
+
+ # Perform all removals
+ for integrity in ${integritys_removed}; do
+ if ! list_remove INTEGRITIES ${integrity}; then
+ warning "${integrity} was not on the list and could not be removed"
+ fi
+ done
+
+ for integrity in ${integritys_added}; do
+ if vpn_security_policies_integrity_supported ${integrity}; then
+ if ! list_append_unique INTEGRITIES ${integrity}; then
+ warning "${integrity} is already on the integrity list"
fi
+ else
+ warning "${integrity} is unknown or unsupported and could not be added"
+ fi
+ done
+ fi
+
+ # Check if the list contain at least one valid integrity
+ if list_is_empty INTEGRITIES; then
+ error "Cannot save an empty integrity hashes list"
+ return ${EXIT_ERROR}
+ fi
+
+ # Save everything
+ if ! vpn_security_policies_write_config_key ${name} "INTEGRITIES" ${INTEGRITIES}; then
+ log ERROR "The changes for the vpn security policy ${name} could not be written."
+ fi
+
+ cli_headline 1 "Current integrity hashes list for ${name}:"
+ for integrity in ${INTEGRITIES}; do
+ cli_print_fmt1 1 "${integrity}" "${VPN_SUPPORTED_INTEGRITIES[${integrity}]}"
+ done
+}
+
+# This function parses the parameters for the 'pseudo-random-functions' command
+vpn_security_policies_pseudo_random_functions() {
+ local name=${1}
+ shift
+
+ if [ $# -eq 0 ]; then
+ log ERROR "You must pass at least one value"
+ return ${EXIT_ERROR}
+ fi
+
+ local PSEUDO_RANDOM_FUNCTIONS
+ if ! vpn_security_policies_read_config ${name} "PSEUDO_RANDOM_FUNCTIONS"; then
+ return ${EXIT_ERROR}
+ fi
+
+ # Remove duplicated entries to proceed the list safely
+ PSEUDO_RANDOM_FUNCTIONS="$(list_unique ${PSEUDO_RANDOM_FUNCTIONS})"
+
+ local prfs_added
+ local prfs_removed
+ local prfs_set
+
+ while [ $# -gt 0 ]; do
+ local arg="${1}"
+
+ case "${arg}" in
+ +*)
+ list_append prfs_added "${arg:1}"
+ ;;
+ -*)
+ list_append prfs_removed "${arg:1}"
+ ;;
+ [A-Z0-9]*)
+ list_append prfs_set "${arg}"
+ ;;
+ *)
+ error "Invalid argument: ${arg}"
+ return ${EXIT_ERROR}
;;
esac
shift
done
- # Check if the list contain at least one valid group-type
- if [ $(list_length ${INTEGRITY}) -ge 1 ]; then
- if ! vpn_security_policies_write_config_key ${name} "INTEGRITY" ${INTEGRITY}; then
- log ERROR "The changes for the vpn security policy ${name} could not be written."
- fi
+ # Check if the user is trying a mixed operation
+ if ! list_is_empty prfs_set && (! list_is_empty prfs_added || ! list_is_empty prfs_removed); then
+ error "You cannot reset the pseudo random function list and add or remove functions at the same time"
+ return ${EXIT_ERROR}
+ fi
+
+ # Set new psudo random function list
+ if ! list_is_empty prfs_set; then
+ # Check if all PRFs are valid
+ local prf
+ for prf in ${prfs_set}; do
+ if ! vpn_security_policies_pseudo_random_function_supported "${prf}"; then
+ error "Unsupported pseudo random function: ${prf}"
+ return ${EXIT_ERROR}
+ fi
+ done
+
+ PSEUDO_RANDOM_FUNCTIONS="${prfs_set}"
+
+ # Perform incremental updates
else
- log ERROR "After proceding all integrity hashes the list is empty and thats why no changes are written."
+ local prf
+
+ # Perform all removals
+ for prf in ${prfs_removed}; do
+ if ! list_remove PSEUDO_RANDOM_FUNCTIONS "${prf}"; then
+ warning "${prf} was not on the list and could not be removed"
+ fi
+ done
+
+ for prf in ${prfs_added}; do
+ if vpn_security_policies_pseudo_random_function_supported "${prf}"; then
+ if ! list_append_unique PSEUDO_RANDOM_FUNCTIONS "${prf}"; then
+ warning "${prf} is already on the list"
+ fi
+ else
+ warning "${prf} is unknown or unsupported and could not be added"
+ fi
+ done
+ fi
+
+ # Check if the list contain at least one valid value
+ if list_is_empty PSEUDO_RANDOM_FUNCTIONS; then
+ error "Cannot save an empty list of pseudo random functions"
return ${EXIT_ERROR}
fi
+
+ # Save everything
+ if ! vpn_security_policies_write_config_key "${name}" "PSEUDO_RANDOM_FUNCTIONS" "${PSEUDO_RANDOM_FUNCTIONS}"; then
+ log ERROR "The changes for the VPN security policy ${name} could not be written"
+ fi
+
+ cli_headline 1 "Current pseudo random function list for ${name}:"
+ for prf in ${PSEUDO_RANDOM_FUNCTIONS}; do
+ cli_print_fmt1 1 "${prf}" "${VPN_SUPPORTED_PSEUDO_RANDOM_FUNCTIONS[${prf}]}"
+ done
}
# This function parses the parameters for the 'key-exchange' command
fi
if ! isinteger value; then
- value=$(parse_time $@)
+ value=$(parse_time "$@")
if [ ! $? -eq 0 ]; then
log ERROR "Parsing the passed time was not sucessful please check the passed values."
return ${EXIT_ERROR}
log DEBUG "Creating VPN Security Policy ${name}"
- if copy "$(vpn_security_policies_path "${VPN_DEFAULT_SECURITY_POLICY}")" "$(vpn_security_policies_path ${name})"; then
+ if copy "$(vpn_security_policies_path "${VPN_DEFAULT_SECURITY_POLICY}")" \
+ "$(vpn_security_policies_path ${name})"; then
log INFO "VPN Security Policy ${name} successfully created"
else
log ERROR "Could not create VPN Security Policy ${name}"
return ${EXIT_ERROR}
fi
+
+ # Show the newly created policy
+ vpn_security_policies_show "${name}"
}
# Function that deletes based on the passed parameters one ore more vpn security policies
vpn_security_policies_destroy() {
local name
- for name in $@; do
+ for name in "$@"; do
if ! vpn_security_policy_exists ${name}; then
log ERROR "The vpn security policy ${name} does not exist."
continue
log DEBUG "Deleting vpn security policy ${name}"
settings_remove $(vpn_security_policies_path ${name})
+
+ # Delete cache
+ rm -rf "${NETWORK_CACHE_DIR}/vpn/security-policies/${name}"
+ done
+}
+
+vpn_security_policies_cipher_supported() {
+ local cipher=${1}
+
+ list_match ${cipher} ${!VPN_SUPPORTED_CIPHERS[@]}
+}
+
+
+vpn_security_policies_group_type_supported() {
+ local group_type=${1}
+
+ list_match ${group_type} ${!VPN_SUPPORTED_GROUP_TYPES[@]}
+}
+
+vpn_security_policies_integrity_supported() {
+ local integrity=${1}
+
+ list_match ${integrity} ${!VPN_SUPPORTED_INTEGRITIES[@]}
+}
+
+vpn_security_policies_pseudo_random_function_supported() {
+ local prf="${1}"
+
+ list_match "${prf}" ${!VPN_SUPPORTED_PSEUDO_RANDOM_FUNCTIONS[@]}
+}
+
+vpn_security_policies_cipher_is_aead() {
+ local cipher=${1}
+
+ # All CCM and GCM ciphers are AEAD
+ if string_match "[CG]CM" "${cipher}"; then
+ return ${EXIT_TRUE}
+ fi
+
+ # Poly1305 is AEAD
+ if string_match "POLY1305" "${cipher}"; then
+ return ${EXIT_TRUE}
+ fi
+
+ return ${EXIT_FALSE}
+}
+
+vpn_security_policies_make_ike_proposal() {
+ local name=${1}
+
+ if ! vpn_security_policy_exists ${name}; then
+ return ${EXIT_ERROR}
+ fi
+
+ local config_path="$(vpn_security_policies_path ${name})"
+ local cache_path="${NETWORK_CACHE_DIR}/vpn/security-policies/${name}/ike-proposal"
+
+ # Get data from cache if possible
+ if file_exists "${cache_path}" && ! file_is_newer_than "${config_path}" "${cache_path}"; then
+ fread "${cache_path}"
+ return ${EXIT_OK}
+ fi
+
+ # No or invalid cache data found
+ local proposal=$(_vpn_security_policies_make_ike_proposal "${name}")
+
+ # Write proposal to cache
+ if ! make_parent_directory "${cache_path}" || ! fwrite "${cache_path}" "${proposal}"; then
+ log WARNING "Could not write to cache: ${cache_path}"
+ fi
+
+ print "${proposal}"
+}
+
+_vpn_security_policies_make_ike_proposal() {
+ local name=${1}
+
+ # Read the config settings
+ local ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS}
+ if ! vpn_security_policies_read_config "${name}"; then
+ return ${EXIT_ERROR}
+ fi
+
+ local proposals
+
+ local cipher
+ for cipher in ${CIPHERS}; do
+ # Translate cipher
+ local _cipher=${CIPHER_TO_STRONGSWAN[${cipher}]}
+
+ if ! isset _cipher; then
+ log WARN "Unsupported cipher: ${cipher}"
+ continue
+ fi
+
+ if vpn_security_policies_cipher_is_aead "${cipher}"; then
+ local prf
+ for prf in ${PSEUDO_RANDOM_FUNCTIONS}; do
+ local _prf="${PSEUDO_RANDOM_FUNCTION_TO_STRONGSWAN[${prf}]}"
+
+ if ! isset _prf; then
+ log WARN "Unsupported pseudo random function: ${prf}"
+ continue
+ fi
+
+ local group_type
+ for group_type in ${GROUP_TYPES}; do
+ local _group_type=${GROUP_TYPE_TO_STRONGSWAN[${group_type}]}
+
+ if ! isset _group_type; then
+ log WARN "Unsupported group-type: ${group_type}"
+ continue
+ fi
+
+ # Put everything together
+ list_append proposals "${_cipher}-${_prf}-${_group_type}"
+ done
+ done
+ else
+ local integrity
+ for integrity in ${INTEGRITIES}; do
+ local _integrity=${INTEGRITY_TO_STRONGSWAN[${integrity}]}
+
+ if ! isset _integrity; then
+ log WARN "Unsupported integrity: ${integrity}"
+ continue
+ fi
+
+ local group_type
+ for group_type in ${GROUP_TYPES}; do
+ local _group_type=${GROUP_TYPE_TO_STRONGSWAN[${group_type}]}
+
+ if ! isset _group_type; then
+ log WARN "Unsupported group-type: ${group_type}"
+ continue
+ fi
+
+ # Put everything together
+ list_append proposals "${_cipher}-${_integrity}-${_group_type}"
+ done
+ done
+ fi
done
+
+ # Returns as a comma-separated list
+ list_join proposals ,
+}
+
+vpn_security_policies_make_esp_proposal() {
+ local name=${1}
+
+ if ! vpn_security_policy_exists ${name}; then
+ return ${EXIT_ERROR}
+ fi
+
+ local config_path="$(vpn_security_policies_path ${name})"
+ local cache_path="${NETWORK_CACHE_DIR}/vpn/security-policies/${name}/esp-proposal"
+
+ # Get data from cache if possible
+ if file_exists "${cache_path}" && ! file_is_newer_than "${config_path}" "${cache_path}"; then
+ fread "${cache_path}"
+ return ${EXIT_OK}
+ fi
+
+ # No or invalid cache data found
+ local proposal=$(_vpn_security_policies_make_esp_proposal "${name}")
+
+ # Write proposal to cache
+ if ! make_parent_directory "${cache_path}" || ! fwrite "${cache_path}" "${proposal}"; then
+ log WARNING "Could not write to cache: ${cache_path}"
+ fi
+
+ print "${proposal}"
+}
+
+_vpn_security_policies_make_esp_proposal() {
+ local name=${1}
+
+ # Read the config settings
+ local ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS}
+ if ! vpn_security_policies_read_config "${name}"; then
+ return ${EXIT_ERROR}
+ fi
+
+ local proposals
+
+ local cipher
+ for cipher in ${CIPHERS}; do
+ # Translate cipher
+ local _cipher=${CIPHER_TO_STRONGSWAN[${cipher}]}
+
+ if ! isset _cipher; then
+ log WARN "Unsupported cipher: ${cipher}"
+ continue
+ fi
+
+ if vpn_security_policies_cipher_is_aead ${cipher}; then
+ local group_type
+ for group_type in ${GROUP_TYPES}; do
+ local _group_type=${GROUP_TYPE_TO_STRONGSWAN[${group_type}]}
+
+ if ! isset _group_type; then
+ log WARN "Unsupported group-type: ${group_type}"
+ continue
+ fi
+
+ # Put everything together
+ list_append proposals "${_cipher}-${_group_type}"
+ done
+ else
+ local integrity
+ for integrity in ${INTEGRITIES}; do
+ local _integrity=${INTEGRITY_TO_STRONGSWAN[${integrity}]}
+
+ if ! isset _integrity; then
+ log WARN "Unsupported integrity: ${integrity}"
+ continue
+ fi
+
+ local group_type
+ for group_type in ${GROUP_TYPES}; do
+ local _group_type=${GROUP_TYPE_TO_STRONGSWAN[${group_type}]}
+
+ if ! isset _group_type; then
+ log WARN "Unsupported group-type: ${group_type}"
+ continue
+ fi
+
+ # Put everything together
+ list_append proposals "${_cipher}-${_integrity}-${_group_type}"
+ done
+ done
+ fi
+ done
+
+ # Returns as a comma-separated list
+ list_join proposals ,
+}
+
+# List all security policies
+vpn_security_policies_list_all() {
+ list_directory "${NETWORK_SHARE_DIR}/vpn/security-policies"
+
+ # Add all user-defined policies
+ vpn_security_policies_list_user
+}
+
+vpn_security_policies_list_user() {
+ list_directory "${NETWORK_CONFIG_DIR}/vpn/security-policies"
}
projects / people / ms / network.git / blobdiff