openconnect: allow specifying a custom CSD wrapper script

Some VPN servers might be configured in a way that a CSD wrapper script
is mandatory to complete the authentication process, allow that to be
specified for openconnect.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

diff --git a/net/openconnect/files/openconnect.sh b/net/openconnect/files/openconnect.sh
index 87c42acc3a814abac99ec842ce3a8b8ffcfae68a..0e22e1b6058a4664829a96f66934764c0c4a2002 100755 (executable)
--- a/net/openconnect/files/openconnect.sh
+++ b/net/openconnect/files/openconnect.sh
@@ -14,6 +14,7 @@ proto_openconnect_init_config() {
        proto_config_add_string "token_secret"
        proto_config_add_string "interface"
        proto_config_add_string "os"
+       proto_config_add_string "csd_wrapper"
        no_device=1
        available=1
 }
@@ -21,7 +22,7 @@ proto_openconnect_init_config() {
 proto_openconnect_setup() {
        local config="$1"
 
-       json_get_vars server port username serverhash authgroup password interface token_mode token_secret os
+       json_get_vars server port username serverhash authgroup password interface token_mode token_secret os csd_wrapper
 
        grep -q tun /proc/modules || insmod tun
 
@@ -70,6 +71,7 @@ proto_openconnect_setup() {
        [ -n "$token_mode" ] && append cmdline "--token-mode=$token_mode"
        [ -n "$token_secret" ] && append cmdline "--token-secret=$token_secret"
        [ -n "$os" ] && append cmdline "--os=$os"
+       [ -n "$csd_wrapper" ] && [ -x "$csd_wrapper" ] && append cmdline "--csd-wrapper=$csd_wrapper"
 
        proto_export INTERFACE="$config"
        logger -t openconnect "executing 'openconnect $cmdline'"