hostapd: add support for system cert bundle validation

Currently, it is very cumbersome for a user to connect to a WPA-Enterprise
based network securely because the RADIUS server's CA certificate must first be
extracted from the EAPOL handshake using tcpdump or other methods before it can
be pinned using the ca_cert(2) fields. To make this process easier and more
secure (combined with changes in openwrt/openwrt#2654), this commit adds
support for validating against the built-in CA bundle when the ca-bundle
package is installed. Related LuCI changes in openwrt/luci#3513.

Signed-off-by: David Lam <david@thedavid.net>
[bump PKG_RELEASE]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
David Lam 2020-01-16 00:01:35 -08:00 committed by Jo-Philipp Wich
parent 702c70264b
commit a5f3648a1c
2 changed files with 15 additions and 6 deletions

View File

@ -7,7 +7,7 @@
include $(TOPDIR)/rules.mk include $(TOPDIR)/rules.mk
PKG_NAME:=hostapd PKG_NAME:=hostapd
PKG_RELEASE:=5 PKG_RELEASE:=6
PKG_SOURCE_URL:=http://w1.fi/hostap.git PKG_SOURCE_URL:=http://w1.fi/hostap.git
PKG_SOURCE_PROTO:=git PKG_SOURCE_PROTO:=git

View File

@ -212,6 +212,7 @@ hostapd_common_add_bss_config() {
config_add_string radius_client_addr config_add_string radius_client_addr
config_add_string iapp_interface config_add_string iapp_interface
config_add_string eap_type ca_cert client_cert identity anonymous_identity auth priv_key priv_key_pwd config_add_string eap_type ca_cert client_cert identity anonymous_identity auth priv_key priv_key_pwd
config_add_boolean ca_cert_usesystem ca_cert2_usesystem
config_add_string subject_match subject_match2 config_add_string subject_match subject_match2
config_add_array altsubject_match altsubject_match2 config_add_array altsubject_match altsubject_match2
config_add_array domain_match domain_match2 domain_suffix_match domain_suffix_match2 config_add_array domain_match domain_match2 domain_suffix_match domain_suffix_match2
@ -872,8 +873,13 @@ wpa_supplicant_add_network() {
hostapd_append_wpa_key_mgmt hostapd_append_wpa_key_mgmt
key_mgmt="$wpa_key_mgmt" key_mgmt="$wpa_key_mgmt"
json_get_vars eap_type identity anonymous_identity ca_cert json_get_vars eap_type identity anonymous_identity ca_cert ca_cert_usesystem
if [ "$ca_cert_usesystem" -eq "1" -a -f "/etc/ssl/certs/ca-certificates.crt" ]; then
append network_data "ca_cert=\"/etc/ssl/certs/ca-certificates.crt\"" "$N$T"
else
[ -n "$ca_cert" ] && append network_data "ca_cert=\"$ca_cert\"" "$N$T" [ -n "$ca_cert" ] && append network_data "ca_cert=\"$ca_cert\"" "$N$T"
fi
[ -n "$identity" ] && append network_data "identity=\"$identity\"" "$N$T" [ -n "$identity" ] && append network_data "identity=\"$identity\"" "$N$T"
[ -n "$anonymous_identity" ] && append network_data "anonymous_identity=\"$anonymous_identity\"" "$N$T" [ -n "$anonymous_identity" ] && append network_data "anonymous_identity=\"$anonymous_identity\"" "$N$T"
case "$eap_type" in case "$eap_type" in
@ -914,12 +920,15 @@ wpa_supplicant_add_network() {
fi fi
;; ;;
fast|peap|ttls) fast|peap|ttls)
json_get_vars auth password ca_cert2 client_cert2 priv_key2 priv_key2_pwd json_get_vars auth password ca_cert2 ca_cert2_usesystem client_cert2 priv_key2 priv_key2_pwd
set_default auth MSCHAPV2 set_default auth MSCHAPV2
if [ "$auth" = "EAP-TLS" ]; then if [ "$auth" = "EAP-TLS" ]; then
[ -n "$ca_cert2" ] && if [ "$ca_cert2_usesystem" -eq "1" -a -f "/etc/ssl/certs/ca-certificates.crt" ]; then
append network_data "ca_cert2=\"$ca_cert2\"" "$N$T" append network_data "ca_cert2=\"/etc/ssl/certs/ca-certificates.crt\"" "$N$T"
else
[ -n "$ca_cert2" ] && append network_data "ca_cert2=\"$ca_cert2\"" "$N$T"
fi
append network_data "client_cert2=\"$client_cert2\"" "$N$T" append network_data "client_cert2=\"$client_cert2\"" "$N$T"
append network_data "private_key2=\"$priv_key2\"" "$N$T" append network_data "private_key2=\"$priv_key2\"" "$N$T"
append network_data "private_key2_passwd=\"$priv_key2_pwd\"" "$N$T" append network_data "private_key2_passwd=\"$priv_key2_pwd\"" "$N$T"