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authorLuca Muscariello <lumuscar+fdio@cisco.com>2019-01-17 13:47:57 +0100
committerLuca Muscariello <lumuscar+fdio@cisco.com>2019-01-17 16:32:51 +0100
commitbac3da61644515f05663789b122554dc77549286 (patch)
tree898210bc8e70371d77de7d446a26c5dd4fd1165a /lib/src/protocol/ipv4.h
parentd5165246787301d0f13b646fda5e8a8567aef5ac (diff)
This is the first commit of the hicn projectv19.01
Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>
Diffstat (limited to 'lib/src/protocol/ipv4.h')
-rwxr-xr-xlib/src/protocol/ipv4.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/lib/src/protocol/ipv4.h b/lib/src/protocol/ipv4.h
new file mode 100755
index 000000000..c57485b6c
--- /dev/null
+++ b/lib/src/protocol/ipv4.h
@@ -0,0 +1,91 @@
+/*
+ * 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.
+ */
+
+#ifndef HICN_PROTOCOL_IPV4
+#define HICN_PROTOCOL_IPV4
+
+#include "../base.h"
+#include "../common.h"
+#include "../protocol.h"
+
+/* Headers were adapted from linux' definitions in netinet/ip.h */
+
+typedef struct
+{
+ union
+ {
+ struct
+ {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ u8 ihl:4;
+ u8 version:4;
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ u8 version:4;
+ u8 ihl:4;
+#else
+#error "Unsupported endianness"
+#endif
+ };
+
+ u8 version_ihl;
+ };
+ u8 tos;
+ u16 len;
+ u16 id;
+ u16 frag_off;
+ u8 ttl;
+ u8 protocol;
+ u16 csum;
+ ip4_address_t saddr;
+ ip4_address_t daddr;
+} _ipv4_header_t;
+
+#define ipv4_header_bytes(ipv4_header) (sizeof(u32) * (ipv4_header->version_ihl & 0xf))
+
+#define IPV4_HDRLEN sizeof(_ipv4_header_t)
+
+typedef struct
+{
+ ip4_address_t ip_src;
+ ip4_address_t ip_dst;
+ u8 zero;
+ u8 protocol;
+ u16 size;
+} ipv4_pseudo_header_t;
+
+#define IPV4_PSHDRLEN sizeof(ipv4_pseudo_header_t)
+
+/* Default field values */
+#define IPV4_DEFAULT_VERSION 4
+#define IPV4_DEFAULT_IHL 5
+#define IPV4_DEFAULT_TOS 0
+#define IPV4_DEFAULT_PAYLOAD_LENGTH 0
+#define IPV4_DEFAULT_ID 300
+#define IPV4_DEFAULT_FRAG_OFF 0x000
+#define IPV4_DEFAULT_TTL 64
+#define IPV4_DEFAULT_PROTOCOL IPPROTO_TCP
+#define IPV4_DEFAULT_SRC_IP 0, 0, 0, 0
+#define IPV4_DEFAULT_DST_IP 0, 0, 0, 0
+
+
+#endif /* HICN_PROTOCOL_IPV4 */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */