Add S4U2Proxy supports4u2proxy

SU2Proxy support is enabled when GssapiUseS4U2Proxy is set to On
When S4U2Proxy is enabled GssapiDelegCcacheDir is used to determine
where delegated credentials are stored. The ccache type used is always
of type FILE and is located in the provided directory (defaults to /tmp).
The credentials are stored in a file named after the client credentials
so the directory SHOUL NOT be world writeable if a mutiuser system is
used as ccache file names are predictable.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mod_auth_gssapi.h b/src/mod_auth_gssapi.h
index 6a21254..6d8ab1b 100644
--- a/src/mod_auth_gssapi.h
+++ b/src/mod_auth_gssapi.h
@@ -39,7 +39,9 @@ struct mag_config {
     bool map_to_local;
     bool gss_conn_ctx;
     bool use_sessions;
-    gss_key_value_set_desc cred_store;
+    bool use_s4u2proxy;
+    char *deleg_ccache_dir;
+    gss_key_value_set_desc *cred_store;
     struct seal_key *mag_skey;
 };