diff options
Diffstat (limited to 'lib/includes/hicn/header.h')
| -rw-r--r-- | lib/includes/hicn/header.h | 65 |
1 files changed, 41 insertions, 24 deletions
diff --git a/lib/includes/hicn/header.h b/lib/includes/hicn/header.h index b21fe5c84..8af9170f8 100644 --- a/lib/includes/hicn/header.h +++ b/lib/includes/hicn/header.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Copyright (c) 2021 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: @@ -20,8 +20,8 @@ * NOTE: These structures are used as convenient facade for accessing * the encapsulated headers. They are not written taking compiler padding * into account, then a sizeof() on these struct could not give the expected - * result. For accessing the size of the hicn headers use the macros at the end of - * this file. + * result. For accessing the size of the hicn headers use the macros at the end + * of this file. */ #ifndef HICN_HEADER_H @@ -36,6 +36,11 @@ typedef struct union { _tcp_header_t tcp; + struct + { + _udp_header_t udp; + _new_header_t newhdr; + }; _icmp_header_t icmp; _icmp_wldr_header_t wldr; }; @@ -53,25 +58,36 @@ typedef struct }; struct { + _udp_header_t udp; + _new_header_t newhdr; + _ah_header_t udp_ah; + }; + struct + { _icmp_header_t icmp; _ah_header_t icmp_ah; }; }; } hicn_v6ah_hdr_t; -typedef struct -{ +// For ipv4 we need to use packed structs as fields may be aligned to 64 bits +// (So for instance tcp header may start at byte #24 instead of byte 20) +typedef PACKED (struct { _ipv4_header_t ip; union { _tcp_header_t tcp; + struct + { + _udp_header_t udp; + _new_header_t newhdr; + }; _icmp_header_t icmp; _icmp_wldr_header_t wldr; }; -} hicn_v4_hdr_t; +}) hicn_v4_hdr_t; -typedef struct -{ +typedef PACKED (struct { _ipv4_header_t ip; union { @@ -82,11 +98,17 @@ typedef struct }; struct { + _udp_header_t udp; + _new_header_t newhdr; + _ah_header_t udp_ah; + }; + struct + { _icmp_header_t icmp; _ah_header_t icmp_ah; }; }; -} hicn_v4ah_hdr_t; +}) hicn_v4ah_hdr_t; typedef union { @@ -99,24 +121,19 @@ typedef union hicn_protocol_t protocol; } hicn_header_t; +#define HICN_V6_TCP_HDRLEN (IPV6_HDRLEN + TCP_HDRLEN) +#define HICN_V6_ICMP_HDRLEN (IPV6_HDRLEN + ICMP_HDRLEN) +#define HICN_V6_WLDR_HDRLEN (IPV6_HDRLEN + ICMPWLDR_HDRLEN) -#define HICN_V6_TCP_HDRLEN (IPV6_HDRLEN + TCP_HDRLEN) -#define HICN_V6_ICMP_HDRLEN (IPV6_HDRLEN + ICMP_HDRLEN) -#define HICN_V6_WLDR_HDRLEN (IPV6_HDRLEN + ICMPWLDR_HDRLEN) - -#define HICN_V6_TCP_AH_HDRLEN (HICN_V6_TCP_HDRLEN + AH_HDRLEN) -#define HICN_V6_ICMP_AH_HDRLEN (HICN_V6_ICMP_HDRLEN + AH_HDRLEN) - - -#define HICN_V4_TCP_HDRLEN (IPV4_HDRLEN + TCP_HDRLEN) -#define HICN_V4_ICMP_HDRLEN (IPV4_HDRLEN + ICMP_HDRLEN) -#define HICN_V4_WLDR_HDRLEN (IPV4_HDRLEN + ICMPWLDR_HDRLEN) - -#define HICN_V4_TCP_AH_HDRLEN (HICN_V4_TCP_HDRLEN + AH_HDRLEN) -#define HICN_V4_ICMP_AH_HDRLEN (HICN_V4_ICMP_HDRLEN + AH_HDRLEN) - +#define HICN_V6_TCP_AH_HDRLEN (HICN_V6_TCP_HDRLEN + AH_HDRLEN) +#define HICN_V6_ICMP_AH_HDRLEN (HICN_V6_ICMP_HDRLEN + AH_HDRLEN) +#define HICN_V4_TCP_HDRLEN (IPV4_HDRLEN + TCP_HDRLEN) +#define HICN_V4_ICMP_HDRLEN (IPV4_HDRLEN + ICMP_HDRLEN) +#define HICN_V4_WLDR_HDRLEN (IPV4_HDRLEN + ICMPWLDR_HDRLEN) +#define HICN_V4_TCP_AH_HDRLEN (HICN_V4_TCP_HDRLEN + AH_HDRLEN) +#define HICN_V4_ICMP_AH_HDRLEN (HICN_V4_ICMP_HDRLEN + AH_HDRLEN) #endif /* HICN_HEADER_H */ |