diff options
| author | Florian Westphal <fw@strlen.de> | 2021-06-11 13:50:12 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2021-06-11 15:48:50 +0300 |
| commit | 848b18fb7fbd2fa5bc4fc2263bb69956fb86120d (patch) | |
| tree | cf5087cba7fa96549664c68223e46d68de845140 /net/ipv6/mip6.c | |
| parent | 37b9e7eb55659b270f0e8aebd98308716d935586 (diff) | |
| download | linux-848b18fb7fbd2fa5bc4fc2263bb69956fb86120d.tar.xz | |
xfrm: ipv6: move mip6_rthdr_offset into xfrm core
Place the call into the xfrm core. After this all remaining users
set the hdr_offset function pointer to the same function which opens
the possiblity to remove the indirection.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv6/mip6.c')
| -rw-r--r-- | net/ipv6/mip6.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c index fba3b56a7dd2..aeb35d26e474 100644 --- a/net/ipv6/mip6.c +++ b/net/ipv6/mip6.c @@ -333,53 +333,6 @@ static int mip6_rthdr_output(struct xfrm_state *x, struct sk_buff *skb) return 0; } -static int mip6_rthdr_offset(struct xfrm_state *x, struct sk_buff *skb, - u8 **nexthdr) -{ - u16 offset = sizeof(struct ipv6hdr); - struct ipv6_opt_hdr *exthdr = - (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1); - const unsigned char *nh = skb_network_header(skb); - unsigned int packet_len = skb_tail_pointer(skb) - - skb_network_header(skb); - int found_rhdr = 0; - - *nexthdr = &ipv6_hdr(skb)->nexthdr; - - while (offset + 1 <= packet_len) { - - switch (**nexthdr) { - case NEXTHDR_HOP: - break; - case NEXTHDR_ROUTING: - if (offset + 3 <= packet_len) { - struct ipv6_rt_hdr *rt; - rt = (struct ipv6_rt_hdr *)(nh + offset); - if (rt->type != 0) - return offset; - } - found_rhdr = 1; - break; - case NEXTHDR_DEST: - if (ipv6_find_tlv(skb, offset, IPV6_TLV_HAO) >= 0) - return offset; - - if (found_rhdr) - return offset; - - break; - default: - return offset; - } - - offset += ipv6_optlen(exthdr); - *nexthdr = &exthdr->nexthdr; - exthdr = (struct ipv6_opt_hdr *)(nh + offset); - } - - return offset; -} - static int mip6_rthdr_init_state(struct xfrm_state *x) { if (x->id.spi) { @@ -413,7 +366,6 @@ static const struct xfrm_type mip6_rthdr_type = { .destructor = mip6_rthdr_destroy, .input = mip6_rthdr_input, .output = mip6_rthdr_output, - .hdr_offset = mip6_rthdr_offset, }; static int __init mip6_init(void) |