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+/*
+ * 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.
+ */
+/*
+ * ip/ip.h: ip generic (4 or 6) main
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef included_ip_main_h
+#define included_ip_main_h
+
+#include <vppinfra/hash.h>
+#include <vppinfra/heap.h> /* adjacency heap */
+#include <vppinfra/ptclosure.h>
+
+#include <vnet/vnet.h>
+
+#include <vnet/ip/format.h>
+#include <vnet/ip/ip_packet.h>
+#include <vnet/ip/lookup.h>
+
+#include <vnet/ip/tcp_packet.h>
+#include <vnet/ip/udp_packet.h>
+#include <vnet/ip/icmp46_packet.h>
+
+#include <vnet/ip/ip4.h>
+#include <vnet/ip/ip4_error.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ip/icmp4.h>
+
+#include <vnet/ip/ip6.h>
+#include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/ip6_error.h>
+#include <vnet/ip/icmp6.h>
+#include <vnet/classify/vnet_classify.h>
+
+/* Per protocol info. */
+typedef struct
+{
+ /* Protocol name (also used as hash key). */
+ u8 *name;
+
+ /* Protocol number. */
+ ip_protocol_t protocol;
+
+ /* Format function for this IP protocol. */
+ format_function_t *format_header;
+
+ /* Parser for header. */
+ unformat_function_t *unformat_header;
+
+ /* Parser for per-protocol matches. */
+ unformat_function_t *unformat_match;
+
+ /* Parser for packet generator edits for this protocol. */
+ unformat_function_t *unformat_pg_edit;
+} ip_protocol_info_t;
+
+/* Per TCP/UDP port info. */
+typedef struct
+{
+ /* Port name (used as hash key). */
+ u8 *name;
+
+ /* UDP/TCP port number in network byte order. */
+ u16 port;
+
+ /* Port specific format function. */
+ format_function_t *format_header;
+
+ /* Parser for packet generator edits for this protocol. */
+ unformat_function_t *unformat_pg_edit;
+} tcp_udp_port_info_t;
+
+typedef struct
+{
+ /* Per IP protocol info. */
+ ip_protocol_info_t *protocol_infos;
+
+ /* Protocol info index hashed by 8 bit IP protocol. */
+ uword *protocol_info_by_protocol;
+
+ /* Hash table mapping IP protocol name (see protocols.def)
+ to protocol number. */
+ uword *protocol_info_by_name;
+
+ /* Per TCP/UDP port info. */
+ tcp_udp_port_info_t *port_infos;
+
+ /* Hash table from network-byte-order port to port info index. */
+ uword *port_info_by_port;
+
+ /* Hash table mapping TCP/UDP name to port info index. */
+ uword *port_info_by_name;
+} ip_main_t;
+
+extern ip_main_t ip_main;
+
+clib_error_t *ip_main_init (vlib_main_t * vm);
+
+static inline ip_protocol_info_t *
+ip_get_protocol_info (ip_main_t * im, u32 protocol)
+{
+ uword *p;
+
+ p = hash_get (im->protocol_info_by_protocol, protocol);
+ return p ? vec_elt_at_index (im->protocol_infos, p[0]) : 0;
+}
+
+static inline tcp_udp_port_info_t *
+ip_get_tcp_udp_port_info (ip_main_t * im, u32 port)
+{
+ uword *p;
+
+ p = hash_get (im->port_info_by_port, port);
+ return p ? vec_elt_at_index (im->port_infos, p[0]) : 0;
+}
+
+always_inline ip_csum_t
+ip_incremental_checksum_buffer (vlib_main_t * vm,
+ vlib_buffer_t * first_buffer,
+ u32 first_buffer_offset,
+ u32 n_bytes_to_checksum, ip_csum_t sum)
+{
+ vlib_buffer_t *b = first_buffer;
+ u32 n_bytes_left = n_bytes_to_checksum;
+ ASSERT (b->current_length >= first_buffer_offset);
+ void *h;
+ u32 n;
+
+ n = clib_min (n_bytes_left, b->current_length);
+ h = vlib_buffer_get_current (b) + first_buffer_offset;
+ sum = ip_incremental_checksum (sum, h, n);
+ if (PREDICT_FALSE (b->flags & VLIB_BUFFER_NEXT_PRESENT))
+ {
+ while (1)
+ {
+ n_bytes_left -= n;
+ if (n_bytes_left == 0)
+ break;
+ b = vlib_get_buffer (vm, b->next_buffer);
+ n = clib_min (n_bytes_left, b->current_length);
+ h = vlib_buffer_get_current (b);
+ sum = ip_incremental_checksum (sum, h, n);
+ }
+ }
+
+ return sum;
+}
+
+void ip_del_all_interface_addresses (vlib_main_t * vm, u32 sw_if_index);
+
+extern vlib_node_registration_t ip4_inacl_node;
+extern vlib_node_registration_t ip6_inacl_node;
+
+#endif /* included_ip_main_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */