From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/net/ipv4/xfrm4_state.c | 100 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 kernel/net/ipv4/xfrm4_state.c (limited to 'kernel/net/ipv4/xfrm4_state.c') diff --git a/kernel/net/ipv4/xfrm4_state.c b/kernel/net/ipv4/xfrm4_state.c new file mode 100644 index 000000000..542074c00 --- /dev/null +++ b/kernel/net/ipv4/xfrm4_state.c @@ -0,0 +1,100 @@ +/* + * xfrm4_state.c + * + * Changes: + * YOSHIFUJI Hideaki @USAGI + * Split up af-specific portion + * + */ + +#include +#include +#include +#include +#include +#include + +static int xfrm4_init_flags(struct xfrm_state *x) +{ + if (xs_net(x)->ipv4.sysctl_ip_no_pmtu_disc) + x->props.flags |= XFRM_STATE_NOPMTUDISC; + return 0; +} + +static void +__xfrm4_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl) +{ + const struct flowi4 *fl4 = &fl->u.ip4; + + sel->daddr.a4 = fl4->daddr; + sel->saddr.a4 = fl4->saddr; + sel->dport = xfrm_flowi_dport(fl, &fl4->uli); + sel->dport_mask = htons(0xffff); + sel->sport = xfrm_flowi_sport(fl, &fl4->uli); + sel->sport_mask = htons(0xffff); + sel->family = AF_INET; + sel->prefixlen_d = 32; + sel->prefixlen_s = 32; + sel->proto = fl4->flowi4_proto; + sel->ifindex = fl4->flowi4_oif; +} + +static void +xfrm4_init_temprop(struct xfrm_state *x, const struct xfrm_tmpl *tmpl, + const xfrm_address_t *daddr, const xfrm_address_t *saddr) +{ + x->id = tmpl->id; + if (x->id.daddr.a4 == 0) + x->id.daddr.a4 = daddr->a4; + x->props.saddr = tmpl->saddr; + if (x->props.saddr.a4 == 0) + x->props.saddr.a4 = saddr->a4; + x->props.mode = tmpl->mode; + x->props.reqid = tmpl->reqid; + x->props.family = AF_INET; +} + +int xfrm4_extract_header(struct sk_buff *skb) +{ + const struct iphdr *iph = ip_hdr(skb); + + XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph); + XFRM_MODE_SKB_CB(skb)->id = iph->id; + XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off; + XFRM_MODE_SKB_CB(skb)->tos = iph->tos; + XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl; + XFRM_MODE_SKB_CB(skb)->optlen = iph->ihl * 4 - sizeof(*iph); + memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0, + sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl)); + + return 0; +} + +static struct xfrm_state_afinfo xfrm4_state_afinfo = { + .family = AF_INET, + .proto = IPPROTO_IPIP, + .eth_proto = htons(ETH_P_IP), + .owner = THIS_MODULE, + .init_flags = xfrm4_init_flags, + .init_tempsel = __xfrm4_init_tempsel, + .init_temprop = xfrm4_init_temprop, + .output = xfrm4_output, + .output_finish = xfrm4_output_finish, + .extract_input = xfrm4_extract_input, + .extract_output = xfrm4_extract_output, + .transport_finish = xfrm4_transport_finish, + .local_error = xfrm4_local_error, +}; + +void __init xfrm4_state_init(void) +{ + xfrm_state_register_afinfo(&xfrm4_state_afinfo); +} + +#if 0 +void __exit xfrm4_state_fini(void) +{ + xfrm_state_unregister_afinfo(&xfrm4_state_afinfo); +} +#endif /* 0 */ + -- cgit 1.2.3-korg