X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/ec799d60f6cd3f41041b57efe3963c28dda94d4a..309ca62193772fd8ba532fd413b51a61be0c741e:/ip6.h

diff --git a/ip6.h b/ip6.h
index a6df97aa..12c87ad2 100644
--- a/ip6.h
+++ b/ip6.h
@@ -86,21 +86,7 @@ struct ip6_hdr {
 	} ip6_ctlun;
 	struct in6_addr ip6_src;	/* source address */
 	struct in6_addr ip6_dst;	/* destination address */
-};
-
-/*
- * Pseudo header, used for higher layer checksumming.
- */
-union ip6_pseudo_hdr {
-    struct {
-	struct in6_addr ph_src;
-	struct in6_addr ph_dst;
-	u_int32_t	ph_len;
-	u_int8_t	ph_zero[3];
-	u_int8_t	ph_nxt;
-    } ph;
-    u_int16_t pa[20];
-};
+} UNALIGNED;
 
 #define ip6_vfc		ip6_ctlun.ip6_un2_vfc
 #define ip6_flow	ip6_ctlun.ip6_un1.ip6_un1_flow
@@ -123,25 +109,23 @@ union ip6_pseudo_hdr {
  */
 
 struct	ip6_ext {
-	u_char	ip6e_nxt;
-	u_char	ip6e_len;
-};
+	u_int8_t ip6e_nxt;
+	u_int8_t ip6e_len;
+} UNALIGNED;
 
 /* Hop-by-Hop options header */
-/* XXX should we pad it to force alignment on an 8-byte boundary? */
 struct ip6_hbh {
 	u_int8_t ip6h_nxt;	/* next header */
 	u_int8_t ip6h_len;	/* length in units of 8 octets */
 	/* followed by options */
-};
+} UNALIGNED;
 
 /* Destination options header */
-/* XXX should we pad it to force alignment on an 8-byte boundary? */
 struct ip6_dest {
 	u_int8_t ip6d_nxt;	/* next header */
 	u_int8_t ip6d_len;	/* length in units of 8 octets */
 	/* followed by options */
-};
+} UNALIGNED;
 
 /* Option types and related macros */
 #define IP6OPT_PAD1		0x00	/* 00 0 00000 */
@@ -177,7 +161,7 @@ struct ip6_rthdr {
 	u_int8_t  ip6r_type;	/* routing type */
 	u_int8_t  ip6r_segleft;	/* segments left */
 	/* followed by routing type specific data */
-};
+} UNALIGNED;
 
 /* Type 0 Routing header */
 struct ip6_rthdr0 {
@@ -188,7 +172,7 @@ struct ip6_rthdr0 {
 	u_int8_t  ip6r0_reserved;	/* reserved field */
 	u_int8_t  ip6r0_slmap[3];	/* strict/loose bit map */
 	struct in6_addr ip6r0_addr[1];	/* up to 23 addresses */
-};
+} UNALIGNED;
 
 /* Fragment header */
 struct ip6_frag {
@@ -196,10 +180,13 @@ struct ip6_frag {
 	u_int8_t  ip6f_reserved;	/* reserved field */
 	u_int16_t ip6f_offlg;		/* offset, reserved, and flag */
 	u_int32_t ip6f_ident;		/* identification */
-};
+} UNALIGNED;
 
 #define IP6F_OFF_MASK		0xfff8	/* mask out offset from ip6f_offlg */
 #define IP6F_RESERVED_MASK	0x0006	/* reserved bits in ip6f_offlg */
 #define IP6F_MORE_FRAG		0x0001	/* more-fragments flag */
 
+/* in print-ip6.c */
+extern int nextproto6_cksum(const struct ip6_hdr *, const u_int8_t *, u_int, u_int);
+
 #endif /* not _NETINET_IP6_H_ */