YOSHIFUJI Hideaki | e905a9e | 2007-02-09 23:24:47 +0900 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * xfrm4_policy.c |
| 3 | * |
| 4 | * Changes: |
| 5 | * Kazunori MIYAZAWA @USAGI |
| 6 | * YOSHIFUJI Hideaki @USAGI |
| 7 | * Split up af-specific portion |
YOSHIFUJI Hideaki | e905a9e | 2007-02-09 23:24:47 +0900 | [diff] [blame] | 8 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | */ |
| 10 | |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 11 | #include <linux/err.h> |
| 12 | #include <linux/kernel.h> |
Herbert Xu | aabc976 | 2005-05-03 16:27:10 -0700 | [diff] [blame] | 13 | #include <linux/inetdevice.h> |
Herbert Xu | 45ff5a3 | 2007-11-13 21:35:32 -0800 | [diff] [blame] | 14 | #include <net/dst.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <net/xfrm.h> |
| 16 | #include <net/ip.h> |
| 17 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | static struct xfrm_policy_afinfo xfrm4_policy_afinfo; |
| 19 | |
Alexey Dobriyan | c5b3cf4 | 2008-11-25 17:51:25 -0800 | [diff] [blame] | 20 | static struct dst_entry *xfrm4_dst_lookup(struct net *net, int tos, |
| 21 | xfrm_address_t *saddr, |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 22 | xfrm_address_t *daddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | { |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 24 | struct flowi fl = { |
Patrick McHardy | a1e59ab | 2006-09-19 12:57:34 -0700 | [diff] [blame] | 25 | .nl_u = { |
| 26 | .ip4_u = { |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 27 | .tos = tos, |
Patrick McHardy | a1e59ab | 2006-09-19 12:57:34 -0700 | [diff] [blame] | 28 | .daddr = daddr->a4, |
| 29 | }, |
| 30 | }, |
| 31 | }; |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 32 | struct dst_entry *dst; |
| 33 | struct rtable *rt; |
| 34 | int err; |
Patrick McHardy | a1e59ab | 2006-09-19 12:57:34 -0700 | [diff] [blame] | 35 | |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 36 | if (saddr) |
| 37 | fl.fl4_src = saddr->a4; |
| 38 | |
Alexey Dobriyan | c5b3cf4 | 2008-11-25 17:51:25 -0800 | [diff] [blame] | 39 | err = __ip_route_output_key(net, &rt, &fl); |
Changli Gao | d8d1f30 | 2010-06-10 23:31:35 -0700 | [diff] [blame^] | 40 | dst = &rt->dst; |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 41 | if (err) |
| 42 | dst = ERR_PTR(err); |
| 43 | return dst; |
| 44 | } |
| 45 | |
Alexey Dobriyan | fbda33b | 2008-11-25 17:56:49 -0800 | [diff] [blame] | 46 | static int xfrm4_get_saddr(struct net *net, |
| 47 | xfrm_address_t *saddr, xfrm_address_t *daddr) |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 48 | { |
| 49 | struct dst_entry *dst; |
| 50 | struct rtable *rt; |
| 51 | |
Alexey Dobriyan | fbda33b | 2008-11-25 17:56:49 -0800 | [diff] [blame] | 52 | dst = xfrm4_dst_lookup(net, 0, NULL, daddr); |
Herbert Xu | 66cdb3c | 2007-11-13 21:37:28 -0800 | [diff] [blame] | 53 | if (IS_ERR(dst)) |
| 54 | return -EHOSTUNREACH; |
| 55 | |
| 56 | rt = (struct rtable *)dst; |
| 57 | saddr->a4 = rt->rt_src; |
| 58 | dst_release(dst); |
| 59 | return 0; |
Patrick McHardy | a1e59ab | 2006-09-19 12:57:34 -0700 | [diff] [blame] | 60 | } |
| 61 | |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 62 | static int xfrm4_get_tos(struct flowi *fl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | { |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 64 | return fl->fl4_tos; |
| 65 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
Masahide NAKAMURA | a1b0514 | 2007-12-20 20:41:12 -0800 | [diff] [blame] | 67 | static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst, |
| 68 | int nfheader_len) |
| 69 | { |
| 70 | return 0; |
| 71 | } |
| 72 | |
Herbert Xu | 87c1e12 | 2010-03-02 02:51:56 +0000 | [diff] [blame] | 73 | static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev, |
| 74 | struct flowi *fl) |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 75 | { |
| 76 | struct rtable *rt = (struct rtable *)xdst->route; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
Herbert Xu | 87c1e12 | 2010-03-02 02:51:56 +0000 | [diff] [blame] | 78 | xdst->u.rt.fl = *fl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 80 | xdst->u.dst.dev = dev; |
| 81 | dev_hold(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 83 | xdst->u.rt.idev = in_dev_get(dev); |
| 84 | if (!xdst->u.rt.idev) |
| 85 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 87 | xdst->u.rt.peer = rt->peer; |
| 88 | if (rt->peer) |
| 89 | atomic_inc(&rt->peer->refcnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 91 | /* Sheit... I remember I did this right. Apparently, |
| 92 | * it was magically lost, so this code needs audit */ |
| 93 | xdst->u.rt.rt_flags = rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST | |
| 94 | RTCF_LOCAL); |
| 95 | xdst->u.rt.rt_type = rt->rt_type; |
| 96 | xdst->u.rt.rt_src = rt->rt_src; |
| 97 | xdst->u.rt.rt_dst = rt->rt_dst; |
| 98 | xdst->u.rt.rt_gateway = rt->rt_gateway; |
| 99 | xdst->u.rt.rt_spec_dst = rt->rt_spec_dst; |
Miika Komu | 4337226 | 2007-02-06 14:27:32 -0800 | [diff] [blame] | 100 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | static void |
Herbert Xu | d5422ef | 2007-12-12 10:44:16 -0800 | [diff] [blame] | 105 | _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | { |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 107 | struct iphdr *iph = ip_hdr(skb); |
Arnaldo Carvalho de Melo | d56f90a | 2007-04-10 20:50:43 -0700 | [diff] [blame] | 108 | u8 *xprth = skb_network_header(skb) + iph->ihl * 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
| 110 | memset(fl, 0, sizeof(struct flowi)); |
| 111 | if (!(iph->frag_off & htons(IP_MF | IP_OFFSET))) { |
| 112 | switch (iph->protocol) { |
| 113 | case IPPROTO_UDP: |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 114 | case IPPROTO_UDPLITE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | case IPPROTO_TCP: |
| 116 | case IPPROTO_SCTP: |
Patrick McHardy | 9e99999 | 2005-12-19 14:03:46 -0800 | [diff] [blame] | 117 | case IPPROTO_DCCP: |
Wei Yongjun | c615c9f | 2009-07-02 16:57:23 +0000 | [diff] [blame] | 118 | if (xprth + 4 < skb->data || |
| 119 | pskb_may_pull(skb, xprth + 4 - skb->data)) { |
Al Viro | 8c689a6 | 2006-11-08 00:20:21 -0800 | [diff] [blame] | 120 | __be16 *ports = (__be16 *)xprth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | |
Herbert Xu | d5422ef | 2007-12-12 10:44:16 -0800 | [diff] [blame] | 122 | fl->fl_ip_sport = ports[!!reverse]; |
| 123 | fl->fl_ip_dport = ports[!reverse]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } |
| 125 | break; |
| 126 | |
| 127 | case IPPROTO_ICMP: |
| 128 | if (pskb_may_pull(skb, xprth + 2 - skb->data)) { |
| 129 | u8 *icmp = xprth; |
| 130 | |
| 131 | fl->fl_icmp_type = icmp[0]; |
| 132 | fl->fl_icmp_code = icmp[1]; |
| 133 | } |
| 134 | break; |
| 135 | |
| 136 | case IPPROTO_ESP: |
| 137 | if (pskb_may_pull(skb, xprth + 4 - skb->data)) { |
Al Viro | 4324a17 | 2006-09-27 18:49:07 -0700 | [diff] [blame] | 138 | __be32 *ehdr = (__be32 *)xprth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
| 140 | fl->fl_ipsec_spi = ehdr[0]; |
| 141 | } |
| 142 | break; |
| 143 | |
| 144 | case IPPROTO_AH: |
| 145 | if (pskb_may_pull(skb, xprth + 8 - skb->data)) { |
Al Viro | 4324a17 | 2006-09-27 18:49:07 -0700 | [diff] [blame] | 146 | __be32 *ah_hdr = (__be32*)xprth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
| 148 | fl->fl_ipsec_spi = ah_hdr[1]; |
| 149 | } |
| 150 | break; |
| 151 | |
| 152 | case IPPROTO_COMP: |
| 153 | if (pskb_may_pull(skb, xprth + 4 - skb->data)) { |
Al Viro | 4324a17 | 2006-09-27 18:49:07 -0700 | [diff] [blame] | 154 | __be16 *ipcomp_hdr = (__be16 *)xprth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
Alexey Dobriyan | 4195f81 | 2006-05-22 16:53:22 -0700 | [diff] [blame] | 156 | fl->fl_ipsec_spi = htonl(ntohs(ipcomp_hdr[1])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | } |
| 158 | break; |
| 159 | default: |
| 160 | fl->fl_ipsec_spi = 0; |
| 161 | break; |
Stephen Hemminger | 3ff50b7 | 2007-04-20 17:09:22 -0700 | [diff] [blame] | 162 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | } |
| 164 | fl->proto = iph->protocol; |
Herbert Xu | d5422ef | 2007-12-12 10:44:16 -0800 | [diff] [blame] | 165 | fl->fl4_dst = reverse ? iph->saddr : iph->daddr; |
| 166 | fl->fl4_src = reverse ? iph->daddr : iph->saddr; |
Herbert Xu | 4da3089 | 2006-02-23 16:19:26 -0800 | [diff] [blame] | 167 | fl->fl4_tos = iph->tos; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | } |
| 169 | |
Daniel Lezcano | 569d364 | 2008-01-18 03:56:57 -0800 | [diff] [blame] | 170 | static inline int xfrm4_garbage_collect(struct dst_ops *ops) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | { |
Alexey Dobriyan | d7c7544 | 2010-01-24 22:47:53 -0800 | [diff] [blame] | 172 | struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops); |
| 173 | |
| 174 | xfrm4_policy_afinfo.garbage_collect(net); |
| 175 | return (atomic_read(&ops->entries) > ops->gc_thresh * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | static void xfrm4_update_pmtu(struct dst_entry *dst, u32 mtu) |
| 179 | { |
| 180 | struct xfrm_dst *xdst = (struct xfrm_dst *)dst; |
| 181 | struct dst_entry *path = xdst->route; |
| 182 | |
| 183 | path->ops->update_pmtu(path, mtu); |
| 184 | } |
| 185 | |
Herbert Xu | aabc976 | 2005-05-03 16:27:10 -0700 | [diff] [blame] | 186 | static void xfrm4_dst_destroy(struct dst_entry *dst) |
| 187 | { |
| 188 | struct xfrm_dst *xdst = (struct xfrm_dst *)dst; |
| 189 | |
| 190 | if (likely(xdst->u.rt.idev)) |
| 191 | in_dev_put(xdst->u.rt.idev); |
Herbert Xu | ed3e37d | 2007-10-17 21:34:46 -0700 | [diff] [blame] | 192 | if (likely(xdst->u.rt.peer)) |
David S. Miller | 26db167 | 2006-12-06 23:45:15 -0800 | [diff] [blame] | 193 | inet_putpeer(xdst->u.rt.peer); |
Herbert Xu | aabc976 | 2005-05-03 16:27:10 -0700 | [diff] [blame] | 194 | xfrm_dst_destroy(xdst); |
| 195 | } |
| 196 | |
| 197 | static void xfrm4_dst_ifdown(struct dst_entry *dst, struct net_device *dev, |
| 198 | int unregister) |
| 199 | { |
| 200 | struct xfrm_dst *xdst; |
| 201 | |
| 202 | if (!unregister) |
| 203 | return; |
| 204 | |
| 205 | xdst = (struct xfrm_dst *)dst; |
| 206 | if (xdst->u.rt.idev->dev == dev) { |
Denis V. Lunev | 5a3e55d | 2007-12-07 00:38:10 -0800 | [diff] [blame] | 207 | struct in_device *loopback_idev = |
YOSHIFUJI Hideaki | c346dca | 2008-03-25 21:47:49 +0900 | [diff] [blame] | 208 | in_dev_get(dev_net(dev)->loopback_dev); |
Herbert Xu | aabc976 | 2005-05-03 16:27:10 -0700 | [diff] [blame] | 209 | BUG_ON(!loopback_idev); |
| 210 | |
| 211 | do { |
| 212 | in_dev_put(xdst->u.rt.idev); |
| 213 | xdst->u.rt.idev = loopback_idev; |
| 214 | in_dev_hold(loopback_idev); |
| 215 | xdst = (struct xfrm_dst *)xdst->u.dst.child; |
| 216 | } while (xdst->u.dst.xfrm); |
| 217 | |
| 218 | __in_dev_put(loopback_idev); |
| 219 | } |
| 220 | |
| 221 | xfrm_dst_ifdown(dst, dev); |
| 222 | } |
| 223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | static struct dst_ops xfrm4_dst_ops = { |
| 225 | .family = AF_INET, |
Harvey Harrison | 09640e6 | 2009-02-01 00:45:17 -0800 | [diff] [blame] | 226 | .protocol = cpu_to_be16(ETH_P_IP), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | .gc = xfrm4_garbage_collect, |
| 228 | .update_pmtu = xfrm4_update_pmtu, |
Herbert Xu | aabc976 | 2005-05-03 16:27:10 -0700 | [diff] [blame] | 229 | .destroy = xfrm4_dst_destroy, |
| 230 | .ifdown = xfrm4_dst_ifdown, |
Herbert Xu | 862b82c | 2007-11-13 21:43:11 -0800 | [diff] [blame] | 231 | .local_out = __ip_local_out, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | .gc_thresh = 1024, |
Eric Dumazet | e242297 | 2008-01-30 20:07:45 -0800 | [diff] [blame] | 233 | .entries = ATOMIC_INIT(0), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | }; |
| 235 | |
| 236 | static struct xfrm_policy_afinfo xfrm4_policy_afinfo = { |
| 237 | .family = AF_INET, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | .dst_ops = &xfrm4_dst_ops, |
| 239 | .dst_lookup = xfrm4_dst_lookup, |
Patrick McHardy | a1e59ab | 2006-09-19 12:57:34 -0700 | [diff] [blame] | 240 | .get_saddr = xfrm4_get_saddr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | .decode_session = _decode_session4, |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 242 | .get_tos = xfrm4_get_tos, |
Masahide NAKAMURA | a1b0514 | 2007-12-20 20:41:12 -0800 | [diff] [blame] | 243 | .init_path = xfrm4_init_path, |
Herbert Xu | 25ee328 | 2007-12-11 09:32:34 -0800 | [diff] [blame] | 244 | .fill_dst = xfrm4_fill_dst, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | }; |
| 246 | |
Randy Dunlap | f816700 | 2009-08-04 20:18:33 -0700 | [diff] [blame] | 247 | #ifdef CONFIG_SYSCTL |
Neil Horman | a44a4a0 | 2009-07-27 08:22:46 +0000 | [diff] [blame] | 248 | static struct ctl_table xfrm4_policy_table[] = { |
| 249 | { |
Neil Horman | a44a4a0 | 2009-07-27 08:22:46 +0000 | [diff] [blame] | 250 | .procname = "xfrm4_gc_thresh", |
Alexey Dobriyan | d7c7544 | 2010-01-24 22:47:53 -0800 | [diff] [blame] | 251 | .data = &init_net.xfrm.xfrm4_dst_ops.gc_thresh, |
Neil Horman | a44a4a0 | 2009-07-27 08:22:46 +0000 | [diff] [blame] | 252 | .maxlen = sizeof(int), |
| 253 | .mode = 0644, |
| 254 | .proc_handler = proc_dointvec, |
| 255 | }, |
| 256 | { } |
| 257 | }; |
| 258 | |
| 259 | static struct ctl_table_header *sysctl_hdr; |
Randy Dunlap | f816700 | 2009-08-04 20:18:33 -0700 | [diff] [blame] | 260 | #endif |
Neil Horman | a44a4a0 | 2009-07-27 08:22:46 +0000 | [diff] [blame] | 261 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | static void __init xfrm4_policy_init(void) |
| 263 | { |
| 264 | xfrm_policy_register_afinfo(&xfrm4_policy_afinfo); |
| 265 | } |
| 266 | |
| 267 | static void __exit xfrm4_policy_fini(void) |
| 268 | { |
Randy Dunlap | f816700 | 2009-08-04 20:18:33 -0700 | [diff] [blame] | 269 | #ifdef CONFIG_SYSCTL |
Neil Horman | a44a4a0 | 2009-07-27 08:22:46 +0000 | [diff] [blame] | 270 | if (sysctl_hdr) |
| 271 | unregister_net_sysctl_table(sysctl_hdr); |
Randy Dunlap | f816700 | 2009-08-04 20:18:33 -0700 | [diff] [blame] | 272 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | xfrm_policy_unregister_afinfo(&xfrm4_policy_afinfo); |
| 274 | } |
| 275 | |
Neil Horman | a33bc5c | 2009-07-30 18:52:15 -0700 | [diff] [blame] | 276 | void __init xfrm4_init(int rt_max_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | { |
Neil Horman | a33bc5c | 2009-07-30 18:52:15 -0700 | [diff] [blame] | 278 | /* |
| 279 | * Select a default value for the gc_thresh based on the main route |
| 280 | * table hash size. It seems to me the worst case scenario is when |
| 281 | * we have ipsec operating in transport mode, in which we create a |
| 282 | * dst_entry per socket. The xfrm gc algorithm starts trying to remove |
| 283 | * entries at gc_thresh, and prevents new allocations as 2*gc_thresh |
| 284 | * so lets set an initial xfrm gc_thresh value at the rt_max_size/2. |
| 285 | * That will let us store an ipsec connection per route table entry, |
| 286 | * and start cleaning when were 1/2 full |
| 287 | */ |
| 288 | xfrm4_dst_ops.gc_thresh = rt_max_size/2; |
Alexey Dobriyan | d7c7544 | 2010-01-24 22:47:53 -0800 | [diff] [blame] | 289 | |
| 290 | xfrm4_state_init(); |
| 291 | xfrm4_policy_init(); |
Randy Dunlap | f816700 | 2009-08-04 20:18:33 -0700 | [diff] [blame] | 292 | #ifdef CONFIG_SYSCTL |
Neil Horman | a44a4a0 | 2009-07-27 08:22:46 +0000 | [diff] [blame] | 293 | sysctl_hdr = register_net_sysctl_table(&init_net, net_ipv4_ctl_path, |
| 294 | xfrm4_policy_table); |
Randy Dunlap | f816700 | 2009-08-04 20:18:33 -0700 | [diff] [blame] | 295 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | } |
| 297 | |