diff --git a/libc/kernel/common/linux/in6.h b/libc/kernel/common/linux/in6.h
index ceaeb7d..d148dfd 100644
--- a/libc/kernel/common/linux/in6.h
+++ b/libc/kernel/common/linux/in6.h
@@ -14,25 +14,21 @@
 
 #include <linux/types.h>
 
-struct in6_addr
-{
- union
- {
+struct in6_addr {
+ union {
  __u8 u6_addr8[16];
- __u16 u6_addr16[8];
- __u32 u6_addr32[4];
+ __be16 u6_addr16[8];
+ __be32 u6_addr32[4];
  } in6_u;
 #define s6_addr in6_u.u6_addr8
 #define s6_addr16 in6_u.u6_addr16
 #define s6_addr32 in6_u.u6_addr32
 };
 
-#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
-
 struct sockaddr_in6 {
  unsigned short int sin6_family;
- __u16 sin6_port;
- __u32 sin6_flowinfo;
+ __be16 sin6_port;
+ __be32 sin6_flowinfo;
  struct in6_addr sin6_addr;
  __u32 sin6_scope_id;
 };
@@ -46,10 +42,9 @@
 
 #define ipv6mr_acaddr ipv6mr_multiaddr
 
-struct in6_flowlabel_req
-{
+struct in6_flowlabel_req {
  struct in6_addr flr_dst;
- __u32 flr_label;
+ __be32 flr_label;
  __u8 flr_action;
  __u8 flr_share;
  __u16 flr_flags;
@@ -98,11 +93,13 @@
 #define IPPROTO_ICMPV6 58  
 #define IPPROTO_NONE 59  
 #define IPPROTO_DSTOPTS 60  
+#define IPPROTO_MH 135  
 
 #define IPV6_TLV_PAD0 0
 #define IPV6_TLV_PADN 1
 #define IPV6_TLV_ROUTERALERT 5
 #define IPV6_TLV_JUMBO 194
+#define IPV6_TLV_HAO 201  
 
 #define IPV6_ADDRFORM 1
 #define IPV6_2292PKTINFO 2
@@ -133,6 +130,7 @@
 #define IPV6_PMTUDISC_DONT 0
 #define IPV6_PMTUDISC_WANT 1
 #define IPV6_PMTUDISC_DO 2
+#define IPV6_PMTUDISC_PROBE 3
 
 #define IPV6_FLOWLABEL_MGR 32
 #define IPV6_FLOWINFO_SEND 33
@@ -151,8 +149,27 @@
 #define IPV6_RTHDR 57
 #define IPV6_RECVDSTOPTS 58
 #define IPV6_DSTOPTS 59
+#define IPV6_RECVPATHMTU 60
+#define IPV6_PATHMTU 61
+#define IPV6_DONTFRAG 62
 
 #define IPV6_RECVTCLASS 66
 #define IPV6_TCLASS 67
 
+#define IPV6_ADDR_PREFERENCES 72
+
+#define IPV6_PREFER_SRC_TMP 0x0001
+#define IPV6_PREFER_SRC_PUBLIC 0x0002
+#define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
+#define IPV6_PREFER_SRC_COA 0x0004
+#define IPV6_PREFER_SRC_HOME 0x0400
+#define IPV6_PREFER_SRC_CGA 0x0008
+#define IPV6_PREFER_SRC_NONCGA 0x0800
+
+#define IPV6_MINHOPCOUNT 73
+
+#define IPV6_ORIGDSTADDR 74
+#define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR
+#define IPV6_TRANSPARENT 75
+
 #endif