kernel-pfkey: Enable ENCR_AES_CTR when it's available

Obtained-from:	pfSense
Sponsored-by:	Rubicon Communications (Netgate)
Closes strongswan/strongswan#17.

diff --git a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
index 5027e17..0df6fb5 100644 (file)
--- a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+++ b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
@@ -843,7 +843,9 @@ static kernel_algorithm_t encryption_algs[] = {
 /*     {ENCR_DES_IV32,                         0                                                       }, */
        {ENCR_NULL,                                     SADB_EALG_NULL                          },
        {ENCR_AES_CBC,                          SADB_X_EALG_AESCBC                      },
-/*     {ENCR_AES_CTR,                          SADB_X_EALG_AESCTR                      }, */
+#ifdef SADB_X_EALG_AESCTR
+       {ENCR_AES_CTR,                          SADB_X_EALG_AESCTR                      },
+#endif
 /*  {ENCR_AES_CCM_ICV8,                        SADB_X_EALG_AES_CCM_ICV8        }, */
 /*     {ENCR_AES_CCM_ICV12,            SADB_X_EALG_AES_CCM_ICV12       }, */
 /*     {ENCR_AES_CCM_ICV16,            SADB_X_EALG_AES_CCM_ICV16       }, */