#endif
#ifndef HAVE_STRUCT_IP6_HDR
-struct ip6_hdr {
+PACKED(struct ip6_hdr {
union {
struct ip6_hdrctl {
uint32_t ip6_un1_flow;
} ip6_ctlun;
struct in6_addr ip6_src;
struct in6_addr ip6_dst;
-};
+});
#define ip6_vfc ip6_ctlun.ip6_un2_vfc
#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
#define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
#endif
+STATIC_ASSERT(sizeof(struct ip6_hdr) == 40, "ip6_hdr has incorrect size");
+
#ifndef HAVE_STRUCT_ICMP6_HDR
-struct icmp6_hdr {
+PACKED(struct icmp6_hdr {
uint8_t icmp6_type;
uint8_t icmp6_code;
uint16_t icmp6_cksum;
uint16_t icmp6_un_data16[2];
uint8_t icmp6_un_data8[4];
} icmp6_dataun;
-};
+});
#define ICMP6_DST_UNREACH_NOROUTE 0
#define ICMP6_DST_UNREACH 1
#define ICMP6_PACKET_TOO_BIG 2
#define icmp6_mtu icmp6_data32[0]
#endif
+STATIC_ASSERT(sizeof(struct icmp6_hdr) == 8, "icmp6_hdr has incorrect size");
+
#ifndef HAVE_STRUCT_ND_NEIGHBOR_SOLICIT
-struct nd_neighbor_solicit {
+PACKED(struct nd_neighbor_solicit {
struct icmp6_hdr nd_ns_hdr;
struct in6_addr nd_ns_target;
-};
+});
#define ND_OPT_SOURCE_LINKADDR 1
#define ND_OPT_TARGET_LINKADDR 2
#define nd_ns_type nd_ns_hdr.icmp6_type
#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
#endif
+STATIC_ASSERT(sizeof(struct nd_neighbor_solicit) == 24, "nd_neighbor_solicit has incorrect size");
+
#ifndef HAVE_STRUCT_ND_OPT_HDR
-struct nd_opt_hdr {
+PACKED(struct nd_opt_hdr {
uint8_t nd_opt_type;
uint8_t nd_opt_len;
-};
+});
#endif
+STATIC_ASSERT(sizeof(struct nd_opt_hdr) == 2, "nd_opt_hdr has incorrect size");
+
#endif