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-rwxr-xr-xlib/src/protocol/ipv6.c412
1 files changed, 412 insertions, 0 deletions
diff --git a/lib/src/protocol/ipv6.c b/lib/src/protocol/ipv6.c
new file mode 100755
index 000000000..41b00ec92
--- /dev/null
+++ b/lib/src/protocol/ipv6.c
@@ -0,0 +1,412 @@
+/*
+ * Copyright (c) 2017-2019 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 <stdlib.h>
+#include <string.h>
+
+#include "../common.h"
+#include "../error.h"
+#include "../ops.h"
+
+int
+ipv6_get_payload_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * payload_length);
+
+int
+ipv6_init_packet_header (hicn_type_t type, hicn_protocol_t * h)
+{
+ size_t total_header_length;
+ int rc = CHILD_OPS (get_header_length, type, h, &total_header_length);
+ if (rc < 0)
+ return rc;
+
+ /* *INDENT-OFF* */
+ h->ipv6 = (_ipv6_header_t)
+ {
+ .saddr = {{ 0 }}
+ ,.daddr = {{ 0 }}
+ ,.version_class_flow = htonl ((IPV6_DEFAULT_VERSION << 28) |
+ (IPV6_DEFAULT_TRAFFIC_CLASS << 20) |
+ (IPV6_DEFAULT_FLOW_LABEL & 0xfffff)),
+ .len = htons ((u16) total_header_length),
+ .nxt = type.l2,
+ .hlim = HICN_DEFAULT_TTL,
+ };
+ /* *INDENT-ON* */
+ return CHILD_OPS (init_packet_header, type, h);
+}
+
+int
+ipv6_get_interest_locator (hicn_type_t type, const hicn_protocol_t * h,
+ ip46_address_t * ip_address)
+{
+ ip_address->ip6 = h->ipv6.saddr;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_set_interest_locator (hicn_type_t type, hicn_protocol_t * h,
+ const ip46_address_t * ip_address)
+{
+ h->ipv6.saddr = ip_address->ip6;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_get_interest_name (hicn_type_t type, const hicn_protocol_t * h,
+ hicn_name_t * name)
+{
+ name->ip6.prefix_as_ip6 = h->ipv6.daddr;
+#ifndef HICN_VPP_PLUGIN
+ name->type = HNT_CONTIGUOUS_V6;
+ name->len = HICN_V6_NAME_LEN;
+#endif /* HICN_VPP_PLUGIN */
+ return CHILD_OPS (get_interest_name_suffix, type, h, &(name->ip6.suffix));
+}
+
+int
+ipv6_set_interest_name (hicn_type_t type, hicn_protocol_t * h,
+ const hicn_name_t * name)
+{
+ h->ipv6.daddr = name->ip6.prefix_as_ip6;
+ return CHILD_OPS (set_interest_name_suffix, type, h, &(name->ip6.suffix));
+}
+
+int
+ipv6_get_interest_name_suffix (hicn_type_t type, const hicn_protocol_t * h,
+ hicn_name_suffix_t * suffix)
+{
+ return CHILD_OPS (get_interest_name_suffix, type, h, suffix);
+}
+
+int
+ipv6_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t * h,
+ const hicn_name_suffix_t * suffix)
+{
+ return CHILD_OPS (set_interest_name_suffix, type, h, suffix);
+}
+
+int
+ipv6_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t * h)
+{
+ /* Sets everything to 0 up to IP destination address */
+ memset (&(h->ipv6), 0, 24);
+
+ return CHILD_OPS (reset_interest_for_hash, type, h);
+}
+
+int
+ipv6_get_data_locator (hicn_type_t type, const hicn_protocol_t * h,
+ ip46_address_t * ip_address)
+{
+ ip_address->ip6 = h->ipv6.daddr;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_set_data_locator (hicn_type_t type, hicn_protocol_t * h,
+ const ip46_address_t * ip_address)
+{
+ h->ipv6.daddr = ip_address->ip6;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_get_data_name (hicn_type_t type, const hicn_protocol_t * h,
+ hicn_name_t * name)
+{
+ name->ip6.prefix_as_ip6 = h->ipv6.saddr;
+#ifndef HICN_VPP_PLUGIN
+ name->type = HNT_CONTIGUOUS_V6;
+ name->len = HICN_V6_NAME_LEN;
+#endif /* HICN_VPP_PLUGIN */
+ return CHILD_OPS (get_data_name_suffix, type, h, &(name->ip6.suffix));
+}
+
+int
+ipv6_set_data_name (hicn_type_t type, hicn_protocol_t * h,
+ const hicn_name_t * name)
+{
+ h->ipv6.saddr = name->ip6.prefix_as_ip6;
+ return CHILD_OPS (set_data_name_suffix, type, h, &(name->ip6.suffix));
+}
+
+int
+ipv6_get_data_name_suffix (hicn_type_t type, const hicn_protocol_t * h,
+ hicn_name_suffix_t * suffix)
+{
+ return CHILD_OPS (get_data_name_suffix, type, h, suffix);
+}
+
+int
+ipv6_set_data_name_suffix (hicn_type_t type, hicn_protocol_t * h,
+ const hicn_name_suffix_t * suffix)
+{
+ return CHILD_OPS (set_data_name_suffix, type, h, suffix);
+}
+
+int
+ipv6_get_data_pathlabel (hicn_type_t type, const hicn_protocol_t * h,
+ u32 * pathlabel)
+{
+ return CHILD_OPS (get_data_pathlabel, type, h, pathlabel);
+}
+
+int
+ipv6_set_data_pathlabel (hicn_type_t type, hicn_protocol_t * h,
+ const u32 pathlabel)
+{
+ return CHILD_OPS (set_data_pathlabel, type, h, pathlabel);
+}
+
+int
+ipv6_update_data_pathlabel (hicn_type_t type, hicn_protocol_t * h,
+ const hicn_faceid_t face_id)
+{
+ return CHILD_OPS (update_data_pathlabel, type, h, face_id);
+}
+
+int
+ipv6_reset_data_for_hash (hicn_type_t type, hicn_protocol_t * h)
+{
+ /* IP: Set everithing to 0 up to destination address */
+ memset (&h->ipv6, 0, 8);
+ /* Clears destination address */
+ memset (&(h->ipv6.daddr), 0, 16);
+
+ return CHILD_OPS (reset_data_for_hash, type, h);
+}
+
+int
+ipv6_get_lifetime (hicn_type_t type, const hicn_protocol_t * h,
+ hicn_lifetime_t * lifetime)
+{
+ return CHILD_OPS (get_lifetime, type, h, lifetime);
+}
+
+int
+ipv6_set_lifetime (hicn_type_t type, hicn_protocol_t * h,
+ const hicn_lifetime_t lifetime)
+{
+ return CHILD_OPS (set_lifetime, type, h, lifetime);
+}
+
+int
+ipv6_update_checksums (hicn_type_t type, hicn_protocol_t * h,
+ u16 partial_csum, size_t payload_length)
+{
+ /* Retrieve payload length if not specified */
+ if (payload_length == 0)
+ {
+ int rc = ipv6_get_payload_length (type, h, &payload_length);
+ if (rc < 0)
+ return rc;
+ }
+
+ /* Ignore the payload if payload_length = ~0 */
+ if (payload_length == ~0)
+ {
+ payload_length = 0;
+ }
+
+ /* Build pseudo-header */
+ ipv6_pseudo_header_t psh;
+ psh.ip_src = h->ipv6.saddr;
+ psh.ip_dst = h->ipv6.daddr;
+ /* Size is u32 and not u16, we cannot copy and need to care about endianness */
+ psh.size = htonl (ntohs (h->ipv6.len));
+ psh.zeros = 0;
+ psh.zero = 0;
+ psh.protocol = h->ipv6.nxt;
+
+ /* Compute partial checksum based on pseudo-header */
+ if (partial_csum != 0)
+ {
+ partial_csum = ~partial_csum;
+ }
+ partial_csum = csum (&psh, IPV6_PSHDRLEN, partial_csum);
+
+ return CHILD_OPS (update_checksums, type, h, partial_csum, payload_length);
+}
+
+int
+ipv6_verify_checksums (hicn_type_t type, hicn_protocol_t * h,
+ u16 partial_csum, size_t payload_length)
+{
+ /* Retrieve payload length if not specified */
+ if (payload_length == 0)
+ {
+ int rc = ipv6_get_payload_length (type, h, &payload_length);
+ if (rc < 0)
+ return rc;
+ }
+
+ /* Build pseudo-header */
+ ipv6_pseudo_header_t pseudo;
+ pseudo.ip_src = h->ipv6.saddr;
+ pseudo.ip_dst = h->ipv6.daddr;
+ /* Size is u32 and not u16, we cannot copy and need to care about endianness */
+ pseudo.size = htonl (ntohs (h->ipv6.len));
+ pseudo.zeros = 0;
+ pseudo.zero = 0;
+ pseudo.protocol = h->ipv6.nxt;
+
+ /* Compute partial checksum based on pseudo-header */
+ partial_csum = csum (&pseudo, IPV6_PSHDRLEN, 0);
+
+ return CHILD_OPS (verify_checksums, type, h, partial_csum, payload_length);
+}
+
+int
+ipv6_rewrite_interest (hicn_type_t type, hicn_protocol_t * h,
+ const ip46_address_t * addr_new,
+ ip46_address_t * addr_old)
+{
+ // ASSERT(addr_old == NULL);
+ addr_old->ip6 = h->ipv6.saddr;
+ h->ipv6.saddr = addr_new->ip6;
+
+ return CHILD_OPS (rewrite_interest, type, h, addr_new, addr_old);
+}
+
+int
+ipv6_rewrite_data (hicn_type_t type, hicn_protocol_t * h,
+ const ip46_address_t * addr_new, ip46_address_t * addr_old,
+ const hicn_faceid_t face_id)
+{
+ // ASSERT(addr_old == NULL);
+ addr_old->ip6 = h->ipv6.daddr;
+ h->ipv6.daddr = addr_new->ip6;
+
+ return CHILD_OPS (rewrite_data, type, h, addr_new, addr_old, face_id);
+}
+
+int
+ipv6_get_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * header_length)
+{
+ *header_length = IPV6_HDRLEN + ntohs (h->ipv6.len);
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_get_current_header_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * header_length)
+{
+ *header_length = IPV6_HDRLEN;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_get_header_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * header_length)
+{
+ size_t child_header_length = 0;
+ int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+ if (rc < 0)
+ return rc;
+ *header_length = IPV6_HDRLEN + child_header_length;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_get_payload_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * payload_length)
+{
+ size_t child_header_length;
+ int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+ if (rc < 0)
+ return rc;
+ *payload_length = ntohs (h->ipv6.len) - child_header_length;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_set_payload_length (hicn_type_t type, hicn_protocol_t * h,
+ size_t payload_length)
+{
+ size_t child_header_length;
+ int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+ if (rc < 0)
+ return rc;
+ h->ipv6.len = htons (payload_length + child_header_length);
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+ipv6_get_signature_size (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * signature_size)
+{
+ return CHILD_OPS (get_signature_size, type, h, signature_size);
+}
+
+int
+ipv6_set_signature_size (hicn_type_t type, hicn_protocol_t * h,
+ size_t signature_size)
+{
+ return CHILD_OPS (set_signature_size, type, h, signature_size);
+}
+
+int
+ipv6_set_signature_timestamp(hicn_type_t type, hicn_protocol_t * h,
+ uint64_t signature_timestamp)
+{
+ return CHILD_OPS (set_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+ipv6_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t * h,
+ uint64_t * signature_timestamp)
+{
+ return CHILD_OPS (get_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+ipv6_set_validation_algorithm (hicn_type_t type, hicn_protocol_t * h,
+ uint8_t validation_algorithm)
+{
+ return CHILD_OPS (set_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+ipv6_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t * h,
+ uint8_t * validation_algorithm)
+{
+ return CHILD_OPS (get_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+ipv6_set_key_id (hicn_type_t type, hicn_protocol_t * h,
+ uint8_t *key_id)
+{
+ return CHILD_OPS (set_key_id, type, h, key_id);
+}
+
+int
+ipv6_get_key_id (hicn_type_t type, hicn_protocol_t * h,
+ uint8_t **key_id, uint8_t *key_id_size)
+{
+ return CHILD_OPS (get_key_id, type, h, key_id, key_id_size);
+}
+
+DECLARE_HICN_OPS (ipv6);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */