SUNRPC: Make krb5 report unsupported encryption types

 Print messages when an unsupported encrytion algorthm is requested or
 there is an error locating a supported algorthm.

 Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 5f1f806..129e2bd 100644 (file)
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -97,13 +97,17 @@ get_key(const void *p, const void *end, struct crypto_tfm **res)
                        alg_mode = CRYPTO_TFM_MODE_CBC;
                        break;
                default:
-                       dprintk("RPC:      get_key: unsupported algorithm %d\n", alg);
+                       printk("gss_kerberos_mech: unsupported algorithm %d\n", alg);
                        goto out_err_free_key;
        }
-       if (!(*res = crypto_alloc_tfm(alg_name, alg_mode)))
+       if (!(*res = crypto_alloc_tfm(alg_name, alg_mode))) {
+               printk("gss_kerberos_mech: unable to initialize crypto algorithm %s\n", alg_name);
                goto out_err_free_key;
-       if (crypto_cipher_setkey(*res, key.data, key.len))
+       }
+       if (crypto_cipher_setkey(*res, key.data, key.len)) {
+               printk("gss_kerberos_mech: error setting key for crypto algorithm %s\n", alg_name);
                goto out_err_free_tfm;
+       }
 
        kfree(key.data);
        return p;