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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-10 15:35:41 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-10 15:35:41 -0300 |
| commit | debe70e488968e82282db48fbbcf84b5080f742c (patch) | |
| tree | 90f96f07c499bfc5bdbbeab3ca4a81a5a7672b61 /include/net/seg6.h | |
| parent | 65f8d08cf838df3c3d728cdef908090237931496 (diff) | |
| parent | 133d9c53c9dcbb1b8f317e402e79c44d9eb725c9 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'include/net/seg6.h')
| -rw-r--r-- | include/net/seg6.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/seg6.h b/include/net/seg6.h index 9d19c15e8545..af668f17b398 100644 --- a/include/net/seg6.h +++ b/include/net/seg6.h @@ -58,9 +58,30 @@ extern int seg6_local_init(void); extern void seg6_local_exit(void); extern bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len, bool reduced); +extern struct ipv6_sr_hdr *seg6_get_srh(struct sk_buff *skb, int flags); +extern void seg6_icmp_srh(struct sk_buff *skb, struct inet6_skb_parm *opt); extern int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto); extern int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh); extern int seg6_lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr, u32 tbl_id); + +/* If the packet which invoked an ICMP error contains an SRH return + * the true destination address from within the SRH, otherwise use the + * destination address in the IP header. + */ +static inline const struct in6_addr *seg6_get_daddr(struct sk_buff *skb, + struct inet6_skb_parm *opt) +{ + struct ipv6_sr_hdr *srh; + + if (opt->flags & IP6SKB_SEG6) { + srh = (struct ipv6_sr_hdr *)(skb->data + opt->srhoff); + return &srh->segments[0]; + } + + return NULL; +} + + #endif |