ipv6.h (c0981b863a31a1891aa2719957983f4297770f87) ipv6.h (73f156a6e8c1074ac6327e0abd1169e95eb66463)
1/*
2 * Linux INET6 implementation
3 *
4 * Authors:
5 * Pedro Roque <roque@di.fc.ul.pt>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License

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108 __u8 reserved;
109 __be16 frag_off;
110 __be32 identification;
111};
112
113#define IP6_MF 0x0001
114#define IP6_OFFSET 0xFFF8
115
1/*
2 * Linux INET6 implementation
3 *
4 * Authors:
5 * Pedro Roque <roque@di.fc.ul.pt>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License

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108 __u8 reserved;
109 __be16 frag_off;
110 __be32 identification;
111};
112
113#define IP6_MF 0x0001
114#define IP6_OFFSET 0xFFF8
115
116#define IP6_REPLY_MARK(net, mark) \
117 ((net)->ipv6.sysctl.fwmark_reflect ? (mark) : 0)
118
116#include <net/sock.h>
117
118/* sysctls */
119extern int sysctl_mld_max_msf;
120
121#define _DEVINC(net, statname, modifier, idev, field) \
122({ \
123 struct inet6_dev *_idev = (idev); \

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578 * Check for a RFC 4843 ORCHID address
579 * (Overlay Routable Cryptographic Hash Identifiers)
580 */
581static inline bool ipv6_addr_orchid(const struct in6_addr *a)
582{
583 return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);
584}
585
119#include <net/sock.h>
120
121/* sysctls */
122extern int sysctl_mld_max_msf;
123
124#define _DEVINC(net, statname, modifier, idev, field) \
125({ \
126 struct inet6_dev *_idev = (idev); \

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581 * Check for a RFC 4843 ORCHID address
582 * (Overlay Routable Cryptographic Hash Identifiers)
583 */
584static inline bool ipv6_addr_orchid(const struct in6_addr *a)
585{
586 return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);
587}
588
589static inline bool ipv6_addr_is_multicast(const struct in6_addr *addr)
590{
591 return (addr->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
592}
593
586static inline void ipv6_addr_set_v4mapped(const __be32 addr,
587 struct in6_addr *v4mapped)
588{
589 ipv6_addr_set(v4mapped,
590 0, 0,
591 htonl(0x0000FFFF),
592 addr);
593}

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655 return __ipv6_addr_diff32(token1, token2, addrlen);
656}
657
658static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2)
659{
660 return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
661}
662
594static inline void ipv6_addr_set_v4mapped(const __be32 addr,
595 struct in6_addr *v4mapped)
596{
597 ipv6_addr_set(v4mapped,
598 0, 0,
599 htonl(0x0000FFFF),
600 addr);
601}

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663 return __ipv6_addr_diff32(token1, token2, addrlen);
664}
665
666static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2)
667{
668 return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
669}
670
663void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
664
665int ip6_dst_hoplimit(struct dst_entry *dst);
666
671int ip6_dst_hoplimit(struct dst_entry *dst);
672
673static inline int ip6_sk_dst_hoplimit(struct ipv6_pinfo *np, struct flowi6 *fl6,
674 struct dst_entry *dst)
675{
676 int hlimit;
677
678 if (ipv6_addr_is_multicast(&fl6->daddr))
679 hlimit = np->mcast_hops;
680 else
681 hlimit = np->hop_limit;
682 if (hlimit < 0)
683 hlimit = ip6_dst_hoplimit(dst);
684 return hlimit;
685}
686
667/*
668 * Header manipulation
669 */
670static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass,
671 __be32 flowlabel)
672{
673 *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | flowlabel;
674}

--- 180 unchanged lines hidden --- 		687/*
688 * Header manipulation
689 */
690static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass,
691 __be32 flowlabel)
692{
693 *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | flowlabel;
694}

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