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-rw-r--r--ipv4.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/ipv4.h b/ipv4.h
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--- /dev/null
+++ b/ipv4.h
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+/*
+ * netsniff-ng - the packet sniffing beast
+ * Copyright (C) 2009, 2010 Daniel Borkmann
+ * Copyright (C) 2012 Christoph Jaeger <christoph@netsniff-ng.org>
+ * Subject to the GPL, version 2.
+ */
+
+#ifndef IPV4_H
+#define IPV4_H
+
+#include <asm/byteorder.h>
+
+#include "built_in.h"
+
+struct ipv4hdr {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __extension__ uint8_t h_ihl:4,
+ h_version:4;
+#elif defined (__BIG_ENDIAN_BITFIELD)
+ __extension__ uint8_t h_version:4,
+ h_ihl:4;
+#else
+# error "Please fix <asm/byteorder.h>"
+#endif
+ uint8_t h_tos;
+ uint16_t h_tot_len;
+ uint16_t h_id;
+ uint16_t h_frag_off;
+ uint8_t h_ttl;
+ uint8_t h_protocol;
+ uint16_t h_check;
+ uint32_t h_saddr;
+ uint32_t h_daddr;
+} __packed;
+
+#endif /* IPV4_H */