src/include/gpxe/ip6.h

   1 #ifndef _GPXE_IP6_H
   2 #define _GPXE_IP6_H
   3
   4 /** @file
   5  *
   6  * IP6 protocol
   7  *
   8  */
   9
  10 FILE_LICENCE ( GPL2_OR_LATER );
  11
  12 #include <stdint.h>
  13 #include <gpxe/in.h>
  14
  15 /* IP6 constants */
  16
  17 #define IP6_VERSION     0x6
  18 #define IP6_HOP_LIMIT   255
  19
  20 /**
  21  * I/O buffer contents
  22  * This is duplicated in tcp.h and here. Ideally it should go into iobuf.h
  23  */
  24 #define MAX_HDR_LEN     100
  25 #define MAX_IOB_LEN     1500
  26 #define MIN_IOB_LEN     MAX_HDR_LEN + 100 /* To account for padding by LL */
  27
  28 #define IP6_EQUAL( in6_addr1, in6_addr2 ) \
  29         ( memcmp ( ( char* ) &( in6_addr1 ), ( char* ) &( in6_addr2 ),\
  30         sizeof ( struct in6_addr ) ) == 0 )
  31
  32 #define IS_UNSPECIFIED( addr ) \
  33         ( ( (addr).in6_u.u6_addr32[0] == 0x00000000 ) && \
  34         ( (addr).in6_u.u6_addr32[1] == 0x00000000 ) && \
  35         ( (addr).in6_u.u6_addr32[2] == 0x00000000 ) && \
  36         ( (addr).in6_u.u6_addr32[3] == 0x00000000 ) )
  37 /* IP6 header */
  38 struct ip6_header {
  39         uint32_t        ver_traffic_class_flow_label;
  40         uint16_t        payload_len;
  41         uint8_t         nxt_hdr;
  42         uint8_t         hop_limit;
  43         struct in6_addr src;
  44         struct in6_addr dest;
  45 };
  46
  47 /* IP6 pseudo header */
  48 struct ipv6_pseudo_header {
  49         struct in6_addr src;
  50         struct in6_addr dest;
  51         uint8_t zero_padding;
  52         uint8_t nxt_hdr;
  53         uint16_t len;
  54 };
  55
  56 /* Next header numbers */
  57 #define IP6_HOPBYHOP            0x00
  58 #define IP6_ICMP6               0x3A
  59 #define IP6_ROUTING             0x43
  60 #define IP6_FRAGMENT            0x44
  61 #define IP6_AUTHENTICATION      0x51
  62 #define IP6_DEST_OPTS           0x60
  63 #define IP6_ESP                 0x50
  64 #define IP6_NO_HEADER           0x59
  65
  66 struct io_buffer;
  67 struct net_device;
  68 struct net_protocol;
  69
  70 extern struct net_protocol ipv6_protocol;
  71 extern struct tcpip_net_protocol ipv6_tcpip_protocol;
  72 extern char * inet6_ntoa ( struct in6_addr in6 );
  73 extern int inet6_aton ( const char *cp, struct in6_addr *inp );
  74
  75 void ipv6_generate_eui64 ( uint8_t *out, uint8_t *ll );
  76
  77 extern int add_ipv6_address ( struct net_device *netdev,
  78                               struct in6_addr prefix, int prefix_len,
  79                               struct in6_addr address,
  80                               struct in6_addr gateway );
  81 extern void del_ipv6_address ( struct net_device *netdev );
  82
  83 #endif /* _GPXE_IP6_H */