/* * 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> #include <vnet/ipsec/ipsec_io.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); #define _(s,v) vec_free(spd->policies[IPSEC_SPD_POLICY_##s]); foreach_ipsec_spd_policy_type #undef _ 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); } /* 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: */