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authorNeale Ranns <nranns@cisco.com>2019-02-01 03:31:24 -0800
committerFlorin Coras <florin.coras@gmail.com>2019-02-01 23:39:13 +0000
commit999c8ee6d6f1c07ba7877fb3f9aa66a90774aacc (patch)
tree3bc5d7e98fc02a3c491fe72286ce330c70446aea /src/vnet/ipsec/ipsec_spd.c
parente7ada526ac1577179c03ba1a4146dbbf3cc431aa (diff)
IPSEC: minor refactor
No function change. Only breaking the monster ipsec.[hc] into smaller constituent parts Change-Id: I3fd4d2d041673db5865d46a4002f6bd383f378af Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ipsec/ipsec_spd.c')
-rw-r--r--src/vnet/ipsec/ipsec_spd.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/src/vnet/ipsec/ipsec_spd.c b/src/vnet/ipsec/ipsec_spd.c
new file mode 100644
index 00000000000..7e17bb91fdb
--- /dev/null
+++ b/src/vnet/ipsec/ipsec_spd.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/ipsec/ipsec.h>
+
+int
+ipsec_add_del_spd (vlib_main_t * vm, u32 spd_id, int is_add)
+{
+ ipsec_main_t *im = &ipsec_main;
+ ipsec_spd_t *spd = 0;
+ uword *p;
+ u32 spd_index, k, v;
+
+ p = hash_get (im->spd_index_by_spd_id, spd_id);
+ if (p && is_add)
+ return VNET_API_ERROR_ENTRY_ALREADY_EXISTS;
+ if (!p && !is_add)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ if (!is_add) /* delete */
+ {
+ spd_index = p[0];
+ spd = pool_elt_at_index (im->spds, spd_index);
+ if (!spd)
+ return VNET_API_ERROR_INVALID_VALUE;
+ /* *INDENT-OFF* */
+ hash_foreach (k, v, im->spd_index_by_sw_if_index, ({
+ if (v == spd_index)
+ ipsec_set_interface_spd(vm, k, spd_id, 0);
+ }));
+ /* *INDENT-ON* */
+ hash_unset (im->spd_index_by_spd_id, spd_id);
+ pool_free (spd->policies);
+ vec_free (spd->ipv4_outbound_policies);
+ vec_free (spd->ipv6_outbound_policies);
+ vec_free (spd->ipv4_inbound_protect_policy_indices);
+ vec_free (spd->ipv4_inbound_policy_discard_and_bypass_indices);
+ pool_put (im->spds, spd);
+ }
+ else /* create new SPD */
+ {
+ pool_get (im->spds, spd);
+ clib_memset (spd, 0, sizeof (*spd));
+ spd_index = spd - im->spds;
+ spd->id = spd_id;
+ hash_set (im->spd_index_by_spd_id, spd_id, spd_index);
+ }
+ return 0;
+}
+
+int
+ipsec_set_interface_spd (vlib_main_t * vm, u32 sw_if_index, u32 spd_id,
+ int is_add)
+{
+ ipsec_main_t *im = &ipsec_main;
+ ip4_ipsec_config_t config;
+
+ u32 spd_index;
+ uword *p;
+
+ p = hash_get (im->spd_index_by_spd_id, spd_id);
+ if (!p)
+ return VNET_API_ERROR_SYSCALL_ERROR_1; /* no such spd-id */
+
+ spd_index = p[0];
+
+ p = hash_get (im->spd_index_by_sw_if_index, sw_if_index);
+ if (p && is_add)
+ return VNET_API_ERROR_SYSCALL_ERROR_1; /* spd already assigned */
+
+ if (is_add)
+ {
+ hash_set (im->spd_index_by_sw_if_index, sw_if_index, spd_index);
+ }
+ else
+ {
+ hash_unset (im->spd_index_by_sw_if_index, sw_if_index);
+ }
+
+ clib_warning ("sw_if_index %u spd_id %u spd_index %u",
+ sw_if_index, spd_id, spd_index);
+
+ /* enable IPsec on TX */
+ vnet_feature_enable_disable ("ip4-output", "ipsec4-output-feature",
+ sw_if_index, is_add, 0, 0);
+ vnet_feature_enable_disable ("ip6-output", "ipsec6-output-feature",
+ sw_if_index, is_add, 0, 0);
+
+ config.spd_index = spd_index;
+
+ /* enable IPsec on RX */
+ vnet_feature_enable_disable ("ip4-unicast", "ipsec4-input-feature",
+ sw_if_index, is_add, &config, sizeof (config));
+ vnet_feature_enable_disable ("ip6-unicast", "ipsec6-input-feature",
+ sw_if_index, is_add, &config, sizeof (config));
+
+ return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */