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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 17:06:58 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 17:06:58 -0400
commita52cefc80fc92981592c688d1c8067442afe4cec (patch)
treead119b5a4f5e4a257779c0ef324b5c9354c915f1 /net/ipv6
parentfba956c46a72f9e7503fd464ffee43c632307e31 (diff)
parent4acad72ded8e3f0211bd2a762e23c28229c61a51 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits) [IPV6]: Consolidate the ip6_pol_route_(input|output) pair [TCP]: Make snd_cwnd_cnt 32-bit [TCP]: Update the /proc/net/tcp documentation [NETNS]: Don't panic on creating the namespace's loopback [NEIGH]: Ensure that pneigh_lookup is protected with RTNL [INET]: kmalloc+memset -> kzalloc in frag_alloc_queue [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled. [IPV6]: Replace sk_buff ** with sk_buff * in input handlers [SELINUX]: Update for netfilter ->hook() arg changes. [INET]: Consolidate the xxx_put [INET]: Small cleanup for xxx_put after evictor consolidation [INET]: Consolidate the xxx_evictor [INET]: Consolidate the xxx_frag_destroy [INET]: Consolidate xxx_the secret_rebuild [INET]: Consolidate the xxx_frag_kill [INET]: Collect common frag sysctl variables together [INET]: Collect frag queues management objects together [INET]: Move common fields from frag_queues in one place. [TG3]: Fix performance regression on 5705. [ISDN]: Remove local copy of device name to make sure renames work. ...
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/exthdrs.c64
-rw-r--r--net/ipv6/icmp.c5
-rw-r--r--net/ipv6/inet6_connection_sock.c2
-rw-r--r--net/ipv6/ip6_input.c6
-rw-r--r--net/ipv6/ip6_output.c2
-rw-r--r--net/ipv6/netfilter.c6
-rw-r--r--net/ipv6/netfilter/ip6_queue.c20
-rw-r--r--net/ipv6/netfilter/ip6_tables.c16
-rw-r--r--net/ipv6/netfilter/ip6t_HL.c6
-rw-r--r--net/ipv6/netfilter/ip6t_LOG.c5
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c14
-rw-r--r--net/ipv6/netfilter/ip6table_filter.c12
-rw-r--r--net/ipv6/netfilter/ip6table_mangle.c32
-rw-r--r--net/ipv6/netfilter/ip6table_raw.c4
-rw-r--r--net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c51
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c314
-rw-r--r--net/ipv6/proc.c2
-rw-r--r--net/ipv6/reassembly.c361
-rw-r--r--net/ipv6/route.c77
-rw-r--r--net/ipv6/sysctl_net_ipv6.c9
-rw-r--r--net/ipv6/tcp_ipv6.c3
-rw-r--r--net/ipv6/tunnel6.c6
-rw-r--r--net/ipv6/udp.c7
-rw-r--r--net/ipv6/udp_impl.h2
-rw-r--r--net/ipv6/udplite.c4
-rw-r--r--net/ipv6/xfrm6_input.c4
-rw-r--r--net/ipv6/xfrm6_output.c4
27 files changed, 375 insertions, 663 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index c82d4d49f71f..1e89efd38a0c 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -102,7 +102,7 @@ EXPORT_SYMBOL_GPL(ipv6_find_tlv);
102 102
103struct tlvtype_proc { 103struct tlvtype_proc {
104 int type; 104 int type;
105 int (*func)(struct sk_buff **skbp, int offset); 105 int (*func)(struct sk_buff *skb, int offset);
106}; 106};
107 107
108/********************* 108/*********************
@@ -111,10 +111,8 @@ struct tlvtype_proc {
111 111
112/* An unknown option is detected, decide what to do */ 112/* An unknown option is detected, decide what to do */
113 113
114static int ip6_tlvopt_unknown(struct sk_buff **skbp, int optoff) 114static int ip6_tlvopt_unknown(struct sk_buff *skb, int optoff)
115{ 115{
116 struct sk_buff *skb = *skbp;
117
118 switch ((skb_network_header(skb)[optoff] & 0xC0) >> 6) { 116 switch ((skb_network_header(skb)[optoff] & 0xC0) >> 6) {
119 case 0: /* ignore */ 117 case 0: /* ignore */
120 return 1; 118 return 1;
@@ -139,9 +137,8 @@ static int ip6_tlvopt_unknown(struct sk_buff **skbp, int optoff)
139 137
140/* Parse tlv encoded option header (hop-by-hop or destination) */ 138/* Parse tlv encoded option header (hop-by-hop or destination) */
141 139
142static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff **skbp) 140static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff *skb)
143{ 141{
144 struct sk_buff *skb = *skbp;
145 struct tlvtype_proc *curr; 142 struct tlvtype_proc *curr;
146 const unsigned char *nh = skb_network_header(skb); 143 const unsigned char *nh = skb_network_header(skb);
147 int off = skb_network_header_len(skb); 144 int off = skb_network_header_len(skb);
@@ -172,13 +169,13 @@ static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff **skbp)
172 /* type specific length/alignment 169 /* type specific length/alignment
173 checks will be performed in the 170 checks will be performed in the
174 func(). */ 171 func(). */
175 if (curr->func(skbp, off) == 0) 172 if (curr->func(skb, off) == 0)
176 return 0; 173 return 0;
177 break; 174 break;
178 } 175 }
179 } 176 }
180 if (curr->type < 0) { 177 if (curr->type < 0) {
181 if (ip6_tlvopt_unknown(skbp, off) == 0) 178 if (ip6_tlvopt_unknown(skb, off) == 0)
182 return 0; 179 return 0;
183 } 180 }
184 break; 181 break;
@@ -198,9 +195,8 @@ bad:
198 *****************************/ 195 *****************************/
199 196
200#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) 197#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
201static int ipv6_dest_hao(struct sk_buff **skbp, int optoff) 198static int ipv6_dest_hao(struct sk_buff *skb, int optoff)
202{ 199{
203 struct sk_buff *skb = *skbp;
204 struct ipv6_destopt_hao *hao; 200 struct ipv6_destopt_hao *hao;
205 struct inet6_skb_parm *opt = IP6CB(skb); 201 struct inet6_skb_parm *opt = IP6CB(skb);
206 struct ipv6hdr *ipv6h = ipv6_hdr(skb); 202 struct ipv6hdr *ipv6h = ipv6_hdr(skb);
@@ -234,22 +230,13 @@ static int ipv6_dest_hao(struct sk_buff **skbp, int optoff)
234 goto discard; 230 goto discard;
235 231
236 if (skb_cloned(skb)) { 232 if (skb_cloned(skb)) {
237 struct sk_buff *skb2 = skb_copy(skb, GFP_ATOMIC); 233 if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
238 struct inet6_skb_parm *opt2;
239
240 if (skb2 == NULL)
241 goto discard; 234 goto discard;
242 235
243 opt2 = IP6CB(skb2);
244 memcpy(opt2, opt, sizeof(*opt2));
245
246 kfree_skb(skb);
247
248 /* update all variable using below by copied skbuff */ 236 /* update all variable using below by copied skbuff */
249 *skbp = skb = skb2; 237 hao = (struct ipv6_destopt_hao *)(skb_network_header(skb) +
250 hao = (struct ipv6_destopt_hao *)(skb_network_header(skb2) +
251 optoff); 238 optoff);
252 ipv6h = ipv6_hdr(skb2); 239 ipv6h = ipv6_hdr(skb);
253 } 240 }
254 241
255 if (skb->ip_summed == CHECKSUM_COMPLETE) 242 if (skb->ip_summed == CHECKSUM_COMPLETE)
@@ -280,9 +267,8 @@ static struct tlvtype_proc tlvprocdestopt_lst[] = {
280 {-1, NULL} 267 {-1, NULL}
281}; 268};
282 269
283static int ipv6_destopt_rcv(struct sk_buff **skbp) 270static int ipv6_destopt_rcv(struct sk_buff *skb)
284{ 271{
285 struct sk_buff *skb = *skbp;
286 struct inet6_skb_parm *opt = IP6CB(skb); 272 struct inet6_skb_parm *opt = IP6CB(skb);
287#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) 273#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
288 __u16 dstbuf; 274 __u16 dstbuf;
@@ -304,9 +290,8 @@ static int ipv6_destopt_rcv(struct sk_buff **skbp)
304#endif 290#endif
305 291
306 dst = dst_clone(skb->dst); 292 dst = dst_clone(skb->dst);
307 if (ip6_parse_tlv(tlvprocdestopt_lst, skbp)) { 293 if (ip6_parse_tlv(tlvprocdestopt_lst, skb)) {
308 dst_release(dst); 294 dst_release(dst);
309 skb = *skbp;
310 skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3; 295 skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
311 opt = IP6CB(skb); 296 opt = IP6CB(skb);
312#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) 297#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
@@ -337,10 +322,8 @@ void __init ipv6_destopt_init(void)
337 NONE header. No data in packet. 322 NONE header. No data in packet.
338 ********************************/ 323 ********************************/
339 324
340static int ipv6_nodata_rcv(struct sk_buff **skbp) 325static int ipv6_nodata_rcv(struct sk_buff *skb)
341{ 326{
342 struct sk_buff *skb = *skbp;
343
344 kfree_skb(skb); 327 kfree_skb(skb);
345 return 0; 328 return 0;
346} 329}
@@ -360,9 +343,8 @@ void __init ipv6_nodata_init(void)
360 Routing header. 343 Routing header.
361 ********************************/ 344 ********************************/
362 345
363static int ipv6_rthdr_rcv(struct sk_buff **skbp) 346static int ipv6_rthdr_rcv(struct sk_buff *skb)
364{ 347{
365 struct sk_buff *skb = *skbp;
366 struct inet6_skb_parm *opt = IP6CB(skb); 348 struct inet6_skb_parm *opt = IP6CB(skb);
367 struct in6_addr *addr = NULL; 349 struct in6_addr *addr = NULL;
368 struct in6_addr daddr; 350 struct in6_addr daddr;
@@ -464,18 +446,14 @@ looped_back:
464 Do not damage packets queued somewhere. 446 Do not damage packets queued somewhere.
465 */ 447 */
466 if (skb_cloned(skb)) { 448 if (skb_cloned(skb)) {
467 struct sk_buff *skb2 = skb_copy(skb, GFP_ATOMIC);
468 /* the copy is a forwarded packet */ 449 /* the copy is a forwarded packet */
469 if (skb2 == NULL) { 450 if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
470 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), 451 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
471 IPSTATS_MIB_OUTDISCARDS); 452 IPSTATS_MIB_OUTDISCARDS);
472 kfree_skb(skb); 453 kfree_skb(skb);
473 return -1; 454 return -1;
474 } 455 }
475 kfree_skb(skb); 456 hdr = (struct ipv6_rt_hdr *)skb_transport_header(skb);
476 *skbp = skb = skb2;
477 opt = IP6CB(skb2);
478 hdr = (struct ipv6_rt_hdr *)skb_transport_header(skb2);
479 } 457 }
480 458
481 if (skb->ip_summed == CHECKSUM_COMPLETE) 459 if (skb->ip_summed == CHECKSUM_COMPLETE)
@@ -578,9 +556,8 @@ static inline struct inet6_dev *ipv6_skb_idev(struct sk_buff *skb)
578 556
579/* Router Alert as of RFC 2711 */ 557/* Router Alert as of RFC 2711 */
580 558
581static int ipv6_hop_ra(struct sk_buff **skbp, int optoff) 559static int ipv6_hop_ra(struct sk_buff *skb, int optoff)
582{ 560{
583 struct sk_buff *skb = *skbp;
584 const unsigned char *nh = skb_network_header(skb); 561 const unsigned char *nh = skb_network_header(skb);
585 562
586 if (nh[optoff + 1] == 2) { 563 if (nh[optoff + 1] == 2) {
@@ -595,9 +572,8 @@ static int ipv6_hop_ra(struct sk_buff **skbp, int optoff)
595 572
596/* Jumbo payload */ 573/* Jumbo payload */
597 574
598static int ipv6_hop_jumbo(struct sk_buff **skbp, int optoff) 575static int ipv6_hop_jumbo(struct sk_buff *skb, int optoff)
599{ 576{
600 struct sk_buff *skb = *skbp;
601 const unsigned char *nh = skb_network_header(skb); 577 const unsigned char *nh = skb_network_header(skb);
602 u32 pkt_len; 578 u32 pkt_len;
603 579
@@ -648,9 +624,8 @@ static struct tlvtype_proc tlvprochopopt_lst[] = {
648 { -1, } 624 { -1, }
649}; 625};
650 626
651int ipv6_parse_hopopts(struct sk_buff **skbp) 627int ipv6_parse_hopopts(struct sk_buff *skb)
652{ 628{
653 struct sk_buff *skb = *skbp;
654 struct inet6_skb_parm *opt = IP6CB(skb); 629 struct inet6_skb_parm *opt = IP6CB(skb);
655 630
656 /* 631 /*
@@ -667,8 +642,7 @@ int ipv6_parse_hopopts(struct sk_buff **skbp)
667 } 642 }
668 643
669 opt->hop = sizeof(struct ipv6hdr); 644 opt->hop = sizeof(struct ipv6hdr);
670 if (ip6_parse_tlv(tlvprochopopt_lst, skbp)) { 645 if (ip6_parse_tlv(tlvprochopopt_lst, skb)) {
671 skb = *skbp;
672 skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3; 646 skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
673 opt = IP6CB(skb); 647 opt = IP6CB(skb);
674 opt->nhoff = sizeof(struct ipv6hdr); 648 opt->nhoff = sizeof(struct ipv6hdr);
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 47b8ce232e84..9bb031fa1c2f 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -82,7 +82,7 @@ EXPORT_SYMBOL(icmpv6msg_statistics);
82static DEFINE_PER_CPU(struct socket *, __icmpv6_socket) = NULL; 82static DEFINE_PER_CPU(struct socket *, __icmpv6_socket) = NULL;
83#define icmpv6_socket __get_cpu_var(__icmpv6_socket) 83#define icmpv6_socket __get_cpu_var(__icmpv6_socket)
84 84
85static int icmpv6_rcv(struct sk_buff **pskb); 85static int icmpv6_rcv(struct sk_buff *skb);
86 86
87static struct inet6_protocol icmpv6_protocol = { 87static struct inet6_protocol icmpv6_protocol = {
88 .handler = icmpv6_rcv, 88 .handler = icmpv6_rcv,
@@ -614,9 +614,8 @@ static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)
614 * Handle icmp messages 614 * Handle icmp messages
615 */ 615 */
616 616
617static int icmpv6_rcv(struct sk_buff **pskb) 617static int icmpv6_rcv(struct sk_buff *skb)
618{ 618{
619 struct sk_buff *skb = *pskb;
620 struct net_device *dev = skb->dev; 619 struct net_device *dev = skb->dev;
621 struct inet6_dev *idev = __in6_dev_get(dev); 620 struct inet6_dev *idev = __in6_dev_get(dev);
622 struct in6_addr *saddr, *daddr; 621 struct in6_addr *saddr, *daddr;
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 25b931709749..78de42ada844 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -146,7 +146,7 @@ void __inet6_csk_dst_store(struct sock *sk, struct dst_entry *dst,
146 __ip6_dst_store(sk, dst, daddr, saddr); 146 __ip6_dst_store(sk, dst, daddr, saddr);
147 147
148#ifdef CONFIG_XFRM 148#ifdef CONFIG_XFRM
149 if (dst) { 149 {
150 struct rt6_info *rt = (struct rt6_info *)dst; 150 struct rt6_info *rt = (struct rt6_info *)dst;
151 rt->rt6i_flow_cache_genid = atomic_read(&flow_cache_genid); 151 rt->rt6i_flow_cache_genid = atomic_read(&flow_cache_genid);
152 } 152 }
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 9149fc239759..fac6f7f9dd73 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -125,7 +125,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
125 } 125 }
126 126
127 if (hdr->nexthdr == NEXTHDR_HOP) { 127 if (hdr->nexthdr == NEXTHDR_HOP) {
128 if (ipv6_parse_hopopts(&skb) < 0) { 128 if (ipv6_parse_hopopts(skb) < 0) {
129 IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS); 129 IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS);
130 rcu_read_unlock(); 130 rcu_read_unlock();
131 return 0; 131 return 0;
@@ -149,7 +149,7 @@ out:
149 */ 149 */
150 150
151 151
152static inline int ip6_input_finish(struct sk_buff *skb) 152static int ip6_input_finish(struct sk_buff *skb)
153{ 153{
154 struct inet6_protocol *ipprot; 154 struct inet6_protocol *ipprot;
155 struct sock *raw_sk; 155 struct sock *raw_sk;
@@ -199,7 +199,7 @@ resubmit:
199 !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) 199 !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
200 goto discard; 200 goto discard;
201 201
202 ret = ipprot->handler(&skb); 202 ret = ipprot->handler(skb);
203 if (ret > 0) 203 if (ret > 0)
204 goto resubmit; 204 goto resubmit;
205 else if (ret == 0) 205 else if (ret == 0)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 011082ed921a..13565dfb1b45 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -70,7 +70,7 @@ static __inline__ void ipv6_select_ident(struct sk_buff *skb, struct frag_hdr *f
70 spin_unlock_bh(&ip6_id_lock); 70 spin_unlock_bh(&ip6_id_lock);
71} 71}
72 72
73static inline int ip6_output_finish(struct sk_buff *skb) 73static int ip6_output_finish(struct sk_buff *skb)
74{ 74{
75 struct dst_entry *dst = skb->dst; 75 struct dst_entry *dst = skb->dst;
76 76
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 38b149613915..b1326c2bf8aa 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -68,15 +68,15 @@ static void nf_ip6_saveroute(const struct sk_buff *skb, struct nf_info *info)
68 } 68 }
69} 69}
70 70
71static int nf_ip6_reroute(struct sk_buff **pskb, const struct nf_info *info) 71static int nf_ip6_reroute(struct sk_buff *skb, const struct nf_info *info)
72{ 72{
73 struct ip6_rt_info *rt_info = nf_info_reroute(info); 73 struct ip6_rt_info *rt_info = nf_info_reroute(info);
74 74
75 if (info->hook == NF_IP6_LOCAL_OUT) { 75 if (info->hook == NF_IP6_LOCAL_OUT) {
76 struct ipv6hdr *iph = ipv6_hdr(*pskb); 76 struct ipv6hdr *iph = ipv6_hdr(skb);
77 if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) || 77 if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
78 !ipv6_addr_equal(&iph->saddr, &rt_info->saddr)) 78 !ipv6_addr_equal(&iph->saddr, &rt_info->saddr))
79 return ip6_route_me_harder(*pskb); 79 return ip6_route_me_harder(skb);
80 } 80 }
81 return 0; 81 return 0;
82} 82}
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 0473145ac534..6413a30d9f68 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -332,6 +332,7 @@ static int
332ipq_mangle_ipv6(ipq_verdict_msg_t *v, struct ipq_queue_entry *e) 332ipq_mangle_ipv6(ipq_verdict_msg_t *v, struct ipq_queue_entry *e)
333{ 333{
334 int diff; 334 int diff;
335 int err;
335 struct ipv6hdr *user_iph = (struct ipv6hdr *)v->payload; 336 struct ipv6hdr *user_iph = (struct ipv6hdr *)v->payload;
336 337
337 if (v->data_len < sizeof(*user_iph)) 338 if (v->data_len < sizeof(*user_iph))
@@ -344,25 +345,18 @@ ipq_mangle_ipv6(ipq_verdict_msg_t *v, struct ipq_queue_entry *e)
344 if (v->data_len > 0xFFFF) 345 if (v->data_len > 0xFFFF)
345 return -EINVAL; 346 return -EINVAL;
346 if (diff > skb_tailroom(e->skb)) { 347 if (diff > skb_tailroom(e->skb)) {
347 struct sk_buff *newskb; 348 err = pskb_expand_head(e->skb, 0,
348 349 diff - skb_tailroom(e->skb),
349 newskb = skb_copy_expand(e->skb, 350 GFP_ATOMIC);
350 skb_headroom(e->skb), 351 if (err) {
351 diff,
352 GFP_ATOMIC);
353 if (newskb == NULL) {
354 printk(KERN_WARNING "ip6_queue: OOM " 352 printk(KERN_WARNING "ip6_queue: OOM "
355 "in mangle, dropping packet\n"); 353 "in mangle, dropping packet\n");
356 return -ENOMEM; 354 return err;
357 } 355 }
358 if (e->skb->sk)
359 skb_set_owner_w(newskb, e->skb->sk);
360 kfree_skb(e->skb);
361 e->skb = newskb;
362 } 356 }
363 skb_put(e->skb, diff); 357 skb_put(e->skb, diff);
364 } 358 }
365 if (!skb_make_writable(&e->skb, v->data_len)) 359 if (!skb_make_writable(e->skb, v->data_len))
366 return -ENOMEM; 360 return -ENOMEM;
367 skb_copy_to_linear_data(e->skb, v->payload, v->data_len); 361 skb_copy_to_linear_data(e->skb, v->payload, v->data_len);
368 e->skb->ip_summed = CHECKSUM_NONE; 362 e->skb->ip_summed = CHECKSUM_NONE;
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index cd9df02bb85c..acaba1537931 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -205,7 +205,7 @@ ip6_checkentry(const struct ip6t_ip6 *ipv6)
205} 205}
206 206
207static unsigned int 207static unsigned int
208ip6t_error(struct sk_buff **pskb, 208ip6t_error(struct sk_buff *skb,
209 const struct net_device *in, 209 const struct net_device *in,
210 const struct net_device *out, 210 const struct net_device *out,
211 unsigned int hooknum, 211 unsigned int hooknum,
@@ -350,7 +350,7 @@ static void trace_packet(struct sk_buff *skb,
350 350
351/* Returns one of the generic firewall policies, like NF_ACCEPT. */ 351/* Returns one of the generic firewall policies, like NF_ACCEPT. */
352unsigned int 352unsigned int
353ip6t_do_table(struct sk_buff **pskb, 353ip6t_do_table(struct sk_buff *skb,
354 unsigned int hook, 354 unsigned int hook,
355 const struct net_device *in, 355 const struct net_device *in,
356 const struct net_device *out, 356 const struct net_device *out,
@@ -389,17 +389,17 @@ ip6t_do_table(struct sk_buff **pskb,
389 do { 389 do {
390 IP_NF_ASSERT(e); 390 IP_NF_ASSERT(e);
391 IP_NF_ASSERT(back); 391 IP_NF_ASSERT(back);
392 if (ip6_packet_match(*pskb, indev, outdev, &e->ipv6, 392 if (ip6_packet_match(skb, indev, outdev, &e->ipv6,
393 &protoff, &offset, &hotdrop)) { 393 &protoff, &offset, &hotdrop)) {
394 struct ip6t_entry_target *t; 394 struct ip6t_entry_target *t;
395 395
396 if (IP6T_MATCH_ITERATE(e, do_match, 396 if (IP6T_MATCH_ITERATE(e, do_match,
397 *pskb, in, out, 397 skb, in, out,
398 offset, protoff, &hotdrop) != 0) 398 offset, protoff, &hotdrop) != 0)
399 goto no_match; 399 goto no_match;
400 400
401 ADD_COUNTER(e->counters, 401 ADD_COUNTER(e->counters,
402 ntohs(ipv6_hdr(*pskb)->payload_len) 402 ntohs(ipv6_hdr(skb)->payload_len)
403 + IPV6_HDR_LEN, 403 + IPV6_HDR_LEN,
404 1); 404 1);
405 405
@@ -409,8 +409,8 @@ ip6t_do_table(struct sk_buff **pskb,
409#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \ 409#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
410 defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE) 410 defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
411 /* The packet is traced: log it */ 411 /* The packet is traced: log it */
412 if (unlikely((*pskb)->nf_trace)) 412 if (unlikely(skb->nf_trace))
413 trace_packet(*pskb, hook, in, out, 413 trace_packet(skb, hook, in, out,
414 table->name, private, e); 414 table->name, private, e);
415#endif 415#endif
416 /* Standard target? */ 416 /* Standard target? */
@@ -448,7 +448,7 @@ ip6t_do_table(struct sk_buff **pskb,
448 ((struct ip6t_entry *)table_base)->comefrom 448 ((struct ip6t_entry *)table_base)->comefrom
449 = 0xeeeeeeec; 449 = 0xeeeeeeec;
450#endif 450#endif
451 verdict = t->u.kernel.target->target(pskb, 451 verdict = t->u.kernel.target->target(skb,
452 in, out, 452 in, out,
453 hook, 453 hook,
454 t->u.kernel.target, 454 t->u.kernel.target,
diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index ad4d94310b87..9afc836fd454 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -18,7 +18,7 @@ MODULE_AUTHOR("Maciej Soltysiak <solt@dns.toxicfilms.tv>");
18MODULE_DESCRIPTION("IP6 tables Hop Limit modification module"); 18MODULE_DESCRIPTION("IP6 tables Hop Limit modification module");
19MODULE_LICENSE("GPL"); 19MODULE_LICENSE("GPL");
20 20
21static unsigned int ip6t_hl_target(struct sk_buff **pskb, 21static unsigned int ip6t_hl_target(struct sk_buff *skb,
22 const struct net_device *in, 22 const struct net_device *in,
23 const struct net_device *out, 23 const struct net_device *out,
24 unsigned int hooknum, 24 unsigned int hooknum,
@@ -29,10 +29,10 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
29 const struct ip6t_HL_info *info = targinfo; 29 const struct ip6t_HL_info *info = targinfo;
30 int new_hl; 30 int new_hl;
31 31
32 if (!skb_make_writable(pskb, (*pskb)->len)) 32 if (!skb_make_writable(skb, skb->len))
33 return NF_DROP; 33 return NF_DROP;
34 34
35 ip6h = ipv6_hdr(*pskb); 35 ip6h = ipv6_hdr(skb);
36 36
37 switch (info->mode) { 37 switch (info->mode) {
38 case IP6T_HL_SET: 38 case IP6T_HL_SET:
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index 6ab99001dccc..7a48c342df46 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -431,7 +431,7 @@ ip6t_log_packet(unsigned int pf,
431} 431}
432 432
433static unsigned int 433static unsigned int
434ip6t_log_target(struct sk_buff **pskb, 434ip6t_log_target(struct sk_buff *skb,
435 const struct net_device *in, 435 const struct net_device *in,
436 const struct net_device *out, 436 const struct net_device *out,
437 unsigned int hooknum, 437 unsigned int hooknum,
@@ -445,8 +445,7 @@ ip6t_log_target(struct sk_buff **pskb,
445 li.u.log.level = loginfo->level; 445 li.u.log.level = loginfo->level;
446 li.u.log.logflags = loginfo->logflags; 446 li.u.log.logflags = loginfo->logflags;
447 447
448 ip6t_log_packet(PF_INET6, hooknum, *pskb, in, out, &li, 448 ip6t_log_packet(PF_INET6, hooknum, skb, in, out, &li, loginfo->prefix);
449 loginfo->prefix);
450 return XT_CONTINUE; 449 return XT_CONTINUE;
451} 450}
452 451
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 3fd08d5567a6..1a7d2917545d 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -172,7 +172,7 @@ send_unreach(struct sk_buff *skb_in, unsigned char code, unsigned int hooknum)
172 icmpv6_send(skb_in, ICMPV6_DEST_UNREACH, code, 0, NULL); 172 icmpv6_send(skb_in, ICMPV6_DEST_UNREACH, code, 0, NULL);
173} 173}
174 174
175static unsigned int reject6_target(struct sk_buff **pskb, 175static unsigned int reject6_target(struct sk_buff *skb,
176 const struct net_device *in, 176 const struct net_device *in,
177 const struct net_device *out, 177 const struct net_device *out,
178 unsigned int hooknum, 178 unsigned int hooknum,
@@ -187,25 +187,25 @@ static unsigned int reject6_target(struct sk_buff **pskb,
187 must return an absolute verdict. --RR */ 187 must return an absolute verdict. --RR */
188 switch (reject->with) { 188 switch (reject->with) {
189 case IP6T_ICMP6_NO_ROUTE: 189 case IP6T_ICMP6_NO_ROUTE:
190 send_unreach(*pskb, ICMPV6_NOROUTE, hooknum); 190 send_unreach(skb, ICMPV6_NOROUTE, hooknum);
191 break; 191 break;
192 case IP6T_ICMP6_ADM_PROHIBITED: 192 case IP6T_ICMP6_ADM_PROHIBITED:
193 send_unreach(*pskb, ICMPV6_ADM_PROHIBITED, hooknum); 193 send_unreach(skb, ICMPV6_ADM_PROHIBITED, hooknum);
194 break; 194 break;
195 case IP6T_ICMP6_NOT_NEIGHBOUR: 195 case IP6T_ICMP6_NOT_NEIGHBOUR:
196 send_unreach(*pskb, ICMPV6_NOT_NEIGHBOUR, hooknum); 196 send_unreach(skb, ICMPV6_NOT_NEIGHBOUR, hooknum);
197 break; 197 break;
198 case IP6T_ICMP6_ADDR_UNREACH: 198 case IP6T_ICMP6_ADDR_UNREACH:
199 send_unreach(*pskb, ICMPV6_ADDR_UNREACH, hooknum); 199 send_unreach(skb, ICMPV6_ADDR_UNREACH, hooknum);
200 break; 200 break;
201 case IP6T_ICMP6_PORT_UNREACH: 201 case IP6T_ICMP6_PORT_UNREACH:
202 send_unreach(*pskb, ICMPV6_PORT_UNREACH, hooknum); 202 send_unreach(skb, ICMPV6_PORT_UNREACH, hooknum);
203 break; 203 break;
204 case IP6T_ICMP6_ECHOREPLY: 204 case IP6T_ICMP6_ECHOREPLY:
205 /* Do nothing */ 205 /* Do nothing */
206 break; 206 break;
207 case IP6T_TCP_RESET: 207 case IP6T_TCP_RESET:
208 send_reset(*pskb); 208 send_reset(skb);
209 break; 209 break;
210 default: 210 default:
211 if (net_ratelimit()) 211 if (net_ratelimit())
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index 7e32e2aaf7f7..1d26b202bf30 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -60,32 +60,32 @@ static struct xt_table packet_filter = {
60/* The work comes in here from netfilter.c. */ 60/* The work comes in here from netfilter.c. */
61static unsigned int 61static unsigned int
62ip6t_hook(unsigned int hook, 62ip6t_hook(unsigned int hook,
63 struct sk_buff **pskb, 63 struct sk_buff *skb,
64 const struct net_device *in, 64 const struct net_device *in,
65 const struct net_device *out, 65 const struct net_device *out,
66 int (*okfn)(struct sk_buff *)) 66 int (*okfn)(struct sk_buff *))
67{ 67{
68 return ip6t_do_table(pskb, hook, in, out, &packet_filter); 68 return ip6t_do_table(skb, hook, in, out, &packet_filter);
69} 69}
70 70
71static unsigned int 71static unsigned int
72ip6t_local_out_hook(unsigned int hook, 72ip6t_local_out_hook(unsigned int hook,
73 struct sk_buff **pskb, 73 struct sk_buff *skb,
74 const struct net_device *in, 74 const struct net_device *in,
75 const struct net_device *out, 75 const struct net_device *out,
76 int (*okfn)(struct sk_buff *)) 76 int (*okfn)(struct sk_buff *))
77{ 77{
78#if 0 78#if 0
79 /* root is playing with raw sockets. */ 79 /* root is playing with raw sockets. */
80 if ((*pskb)->len < sizeof(struct iphdr) 80 if (skb->len < sizeof(struct iphdr)
81 || ip_hdrlen(*pskb) < sizeof(struct iphdr)) { 81 || ip_hdrlen(skb) < sizeof(struct iphdr)) {
82 if (net_ratelimit()) 82 if (net_ratelimit())
83 printk("ip6t_hook: happy cracking.\n"); 83 printk("ip6t_hook: happy cracking.\n");
84 return NF_ACCEPT; 84 return NF_ACCEPT;
85 } 85 }
86#endif 86#endif
87 87
88 return ip6t_do_table(pskb, hook, in, out, &packet_filter); 88 return ip6t_do_table(skb, hook, in, out, &packet_filter);
89} 89}
90 90
91static struct nf_hook_ops ip6t_ops[] = { 91static struct nf_hook_ops ip6t_ops[] = {
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index f0a9efa67fb5..a0b6381f1e8c 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -68,17 +68,17 @@ static struct xt_table packet_mangler = {
68/* The work comes in here from netfilter.c. */ 68/* The work comes in here from netfilter.c. */
69static unsigned int 69static unsigned int
70ip6t_route_hook(unsigned int hook, 70ip6t_route_hook(unsigned int hook,
71 struct sk_buff **pskb, 71 struct sk_buff *skb,
72 const struct net_device *in, 72 const struct net_device *in,
73 const struct net_device *out, 73 const struct net_device *out,
74 int (*okfn)(struct sk_buff *)) 74 int (*okfn)(struct sk_buff *))
75{ 75{
76 return ip6t_do_table(pskb, hook, in, out, &packet_mangler); 76 return ip6t_do_table(skb, hook, in, out, &packet_mangler);
77} 77}
78 78
79static unsigned int 79static unsigned int
80ip6t_local_hook(unsigned int hook, 80ip6t_local_hook(unsigned int hook,
81 struct sk_buff **pskb, 81 struct sk_buff *skb,
82 const struct net_device *in, 82 const struct net_device *in,
83 const struct net_device *out, 83 const struct net_device *out,
84 int (*okfn)(struct sk_buff *)) 84 int (*okfn)(struct sk_buff *))
@@ -91,8 +91,8 @@ ip6t_local_hook(unsigned int hook,
91 91
92#if 0 92#if 0
93 /* root is playing with raw sockets. */ 93 /* root is playing with raw sockets. */
94 if ((*pskb)->len < sizeof(struct iphdr) 94 if (skb->len < sizeof(struct iphdr)
95 || ip_hdrlen(*pskb) < sizeof(struct iphdr)) { 95 || ip_hdrlen(skb) < sizeof(struct iphdr)) {
96 if (net_ratelimit()) 96 if (net_ratelimit())
97 printk("ip6t_hook: happy cracking.\n"); 97 printk("ip6t_hook: happy cracking.\n");
98 return NF_ACCEPT; 98 return NF_ACCEPT;
@@ -100,22 +100,22 @@ ip6t_local_hook(unsigned int hook,
100#endif 100#endif
101 101
102 /* save source/dest address, mark, hoplimit, flowlabel, priority, */ 102 /* save source/dest address, mark, hoplimit, flowlabel, priority, */
103 memcpy(&saddr, &ipv6_hdr(*pskb)->saddr, sizeof(saddr)); 103 memcpy(&saddr, &ipv6_hdr(skb)->saddr, sizeof(saddr));
104 memcpy(&daddr, &ipv6_hdr(*pskb)->daddr, sizeof(daddr)); 104 memcpy(&daddr, &ipv6_hdr(skb)->daddr, sizeof(daddr));
105 mark = (*pskb)->mark; 105 mark = skb->mark;
106 hop_limit = ipv6_hdr(*pskb)->hop_limit; 106 hop_limit = ipv6_hdr(skb)->hop_limit;
107 107
108 /* flowlabel and prio (includes version, which shouldn't change either */ 108 /* flowlabel and prio (includes version, which shouldn't change either */
109 flowlabel = *((u_int32_t *)ipv6_hdr(*pskb)); 109 flowlabel = *((u_int32_t *)ipv6_hdr(skb));
110 110
111 ret = ip6t_do_table(pskb, hook, in, out, &packet_mangler); 111 ret = ip6t_do_table(skb, hook, in, out, &packet_mangler);
112 112
113 if (ret != NF_DROP && ret != NF_STOLEN 113 if (ret != NF_DROP && ret != NF_STOLEN
114 && (memcmp(&ipv6_hdr(*pskb)->saddr, &saddr, sizeof(saddr)) 114 && (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr))
115 || memcmp(&ipv6_hdr(*pskb)->daddr, &daddr, sizeof(daddr)) 115 || memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr))
116 || (*pskb)->mark != mark 116 || skb->mark != mark
117 || ipv6_hdr(*pskb)->hop_limit != hop_limit)) 117 || ipv6_hdr(skb)->hop_limit != hop_limit))
118 return ip6_route_me_harder(*pskb) == 0 ? ret : NF_DROP; 118 return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;
119 119
120 return ret; 120 return ret;
121} 121}
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index ec290e4ebdd8..8f7109f991e6 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -46,12 +46,12 @@ static struct xt_table packet_raw = {
46/* The work comes in here from netfilter.c. */ 46/* The work comes in here from netfilter.c. */
47static unsigned int 47static unsigned int
48ip6t_hook(unsigned int hook, 48ip6t_hook(unsigned int hook,
49 struct sk_buff **pskb, 49 struct sk_buff *skb,
50 const struct net_device *in, 50 const struct net_device *in,
51 const struct net_device *out, 51 const struct net_device *out,
52 int (*okfn)(struct sk_buff *)) 52 int (*okfn)(struct sk_buff *))
53{ 53{
54 return ip6t_do_table(pskb, hook, in, out, &packet_raw); 54 return ip6t_do_table(skb, hook, in, out, &packet_raw);
55} 55}
56 56
57static struct nf_hook_ops ip6t_ops[] = { 57static struct nf_hook_ops ip6t_ops[] = {
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 37a3db926953..0e40948f4fc6 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -18,6 +18,7 @@
18#include <linux/icmp.h> 18#include <linux/icmp.h>
19#include <linux/sysctl.h> 19#include <linux/sysctl.h>
20#include <net/ipv6.h> 20#include <net/ipv6.h>
21#include <net/inet_frag.h>
21 22
22#include <linux/netfilter_ipv6.h> 23#include <linux/netfilter_ipv6.h>
23#include <net/netfilter/nf_conntrack.h> 24#include <net/netfilter/nf_conntrack.h>
@@ -145,7 +146,7 @@ static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
145} 146}
146 147
147static unsigned int ipv6_confirm(unsigned int hooknum, 148static unsigned int ipv6_confirm(unsigned int hooknum,
148 struct sk_buff **pskb, 149 struct sk_buff *skb,
149 const struct net_device *in, 150 const struct net_device *in,
150 const struct net_device *out, 151 const struct net_device *out,
151 int (*okfn)(struct sk_buff *)) 152 int (*okfn)(struct sk_buff *))
@@ -155,12 +156,12 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
155 struct nf_conntrack_helper *helper; 156 struct nf_conntrack_helper *helper;
156 enum ip_conntrack_info ctinfo; 157 enum ip_conntrack_info ctinfo;
157 unsigned int ret, protoff; 158 unsigned int ret, protoff;
158 unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data; 159 unsigned int extoff = (u8 *)(ipv6_hdr(skb) + 1) - skb->data;
159 unsigned char pnum = ipv6_hdr(*pskb)->nexthdr; 160 unsigned char pnum = ipv6_hdr(skb)->nexthdr;
160 161
161 162
162 /* This is where we call the helper: as the packet goes out. */ 163 /* This is where we call the helper: as the packet goes out. */
163 ct = nf_ct_get(*pskb, &ctinfo); 164 ct = nf_ct_get(skb, &ctinfo);
164 if (!ct || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY) 165 if (!ct || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY)
165 goto out; 166 goto out;
166 167
@@ -172,23 +173,23 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
172 if (!helper) 173 if (!helper)
173 goto out; 174 goto out;
174 175
175 protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum, 176 protoff = nf_ct_ipv6_skip_exthdr(skb, extoff, &pnum,
176 (*pskb)->len - extoff); 177 skb->len - extoff);
177 if (protoff > (*pskb)->len || pnum == NEXTHDR_FRAGMENT) { 178 if (protoff > skb->len || pnum == NEXTHDR_FRAGMENT) {
178 pr_debug("proto header not found\n"); 179 pr_debug("proto header not found\n");
179 return NF_ACCEPT; 180 return NF_ACCEPT;
180 } 181 }
181 182
182 ret = helper->help(pskb, protoff, ct, ctinfo); 183 ret = helper->help(skb, protoff, ct, ctinfo);
183 if (ret != NF_ACCEPT) 184 if (ret != NF_ACCEPT)
184 return ret; 185 return ret;
185out: 186out:
186 /* We've seen it coming out the other side: confirm it */ 187 /* We've seen it coming out the other side: confirm it */
187 return nf_conntrack_confirm(pskb); 188 return nf_conntrack_confirm(skb);
188} 189}
189 190
190static unsigned int ipv6_defrag(unsigned int hooknum, 191static unsigned int ipv6_defrag(unsigned int hooknum,
191 struct sk_buff **pskb, 192 struct sk_buff *skb,
192 const struct net_device *in, 193 const struct net_device *in,
193 const struct net_device *out, 194 const struct net_device *out,
194 int (*okfn)(struct sk_buff *)) 195 int (*okfn)(struct sk_buff *))
@@ -196,17 +197,17 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
196 struct sk_buff *reasm; 197 struct sk_buff *reasm;
197 198
198 /* Previously seen (loopback)? */ 199 /* Previously seen (loopback)? */
199 if ((*pskb)->nfct) 200 if (skb->nfct)
200 return NF_ACCEPT; 201 return NF_ACCEPT;
201 202
202 reasm = nf_ct_frag6_gather(*pskb); 203 reasm = nf_ct_frag6_gather(skb);
203 204
204 /* queued */ 205 /* queued */
205 if (reasm == NULL) 206 if (reasm == NULL)
206 return NF_STOLEN; 207 return NF_STOLEN;
207 208
208 /* error occured or not fragmented */ 209 /* error occured or not fragmented */
209 if (reasm == *pskb) 210 if (reasm == skb)
210 return NF_ACCEPT; 211 return NF_ACCEPT;
211 212
212 nf_ct_frag6_output(hooknum, reasm, (struct net_device *)in, 213 nf_ct_frag6_output(hooknum, reasm, (struct net_device *)in,
@@ -216,12 +217,12 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
216} 217}
217 218
218static unsigned int ipv6_conntrack_in(unsigned int hooknum, 219static unsigned int ipv6_conntrack_in(unsigned int hooknum,
219 struct sk_buff **pskb, 220 struct sk_buff *skb,
220 const struct net_device *in, 221 const struct net_device *in,
221 const struct net_device *out, 222 const struct net_device *out,
222 int (*okfn)(struct sk_buff *)) 223 int (*okfn)(struct sk_buff *))
223{ 224{
224 struct sk_buff *reasm = (*pskb)->nfct_reasm; 225 struct sk_buff *reasm = skb->nfct_reasm;
225 226
226 /* This packet is fragmented and has reassembled packet. */ 227 /* This packet is fragmented and has reassembled packet. */
227 if (reasm) { 228 if (reasm) {
@@ -229,32 +230,32 @@ static unsigned int ipv6_conntrack_in(unsigned int hooknum,
229 if (!reasm->nfct) { 230 if (!reasm->nfct) {
230 unsigned int ret; 231 unsigned int ret;
231 232
232 ret = nf_conntrack_in(PF_INET6, hooknum, &reasm); 233 ret = nf_conntrack_in(PF_INET6, hooknum, reasm);
233 if (ret != NF_ACCEPT) 234 if (ret != NF_ACCEPT)
234 return ret; 235 return ret;
235 } 236 }
236 nf_conntrack_get(reasm->nfct); 237 nf_conntrack_get(reasm->nfct);
237 (*pskb)->nfct = reasm->nfct; 238 skb->nfct = reasm->nfct;
238 (*pskb)->nfctinfo = reasm->nfctinfo; 239 skb->nfctinfo = reasm->nfctinfo;
239 return NF_ACCEPT; 240 return NF_ACCEPT;
240 } 241 }
241 242
242 return nf_conntrack_in(PF_INET6, hooknum, pskb); 243 return nf_conntrack_in(PF_INET6, hooknum, skb);
243} 244}
244 245
245static unsigned int ipv6_conntrack_local(unsigned int hooknum, 246static unsigned int ipv6_conntrack_local(unsigned int hooknum,
246 struct sk_buff **pskb, 247 struct sk_buff *skb,
247 const struct net_device *in, 248 const struct net_device *in,
248 const struct net_device *out, 249 const struct net_device *out,
249 int (*okfn)(struct sk_buff *)) 250 int (*okfn)(struct sk_buff *))
250{ 251{
251 /* root is playing with raw sockets. */ 252 /* root is playing with raw sockets. */
252 if ((*pskb)->len < sizeof(struct ipv6hdr)) { 253 if (skb->len < sizeof(struct ipv6hdr)) {
253 if (net_ratelimit()) 254 if (net_ratelimit())
254 printk("ipv6_conntrack_local: packet too short\n"); 255 printk("ipv6_conntrack_local: packet too short\n");
255 return NF_ACCEPT; 256 return NF_ACCEPT;
256 } 257 }
257 return ipv6_conntrack_in(hooknum, pskb, in, out, okfn); 258 return ipv6_conntrack_in(hooknum, skb, in, out, okfn);
258} 259}
259 260
260static struct nf_hook_ops ipv6_conntrack_ops[] = { 261static struct nf_hook_ops ipv6_conntrack_ops[] = {
@@ -307,7 +308,7 @@ static ctl_table nf_ct_ipv6_sysctl_table[] = {
307 { 308 {
308 .ctl_name = NET_NF_CONNTRACK_FRAG6_TIMEOUT, 309 .ctl_name = NET_NF_CONNTRACK_FRAG6_TIMEOUT,
309 .procname = "nf_conntrack_frag6_timeout", 310 .procname = "nf_conntrack_frag6_timeout",
310 .data = &nf_ct_frag6_timeout, 311 .data = &nf_frags_ctl.timeout,
311 .maxlen = sizeof(unsigned int), 312 .maxlen = sizeof(unsigned int),
312 .mode = 0644, 313 .mode = 0644,
313 .proc_handler = &proc_dointvec_jiffies, 314 .proc_handler = &proc_dointvec_jiffies,
@@ -315,7 +316,7 @@ static ctl_table nf_ct_ipv6_sysctl_table[] = {
315 { 316 {
316 .ctl_name = NET_NF_CONNTRACK_FRAG6_LOW_THRESH, 317 .ctl_name = NET_NF_CONNTRACK_FRAG6_LOW_THRESH,
317 .procname = "nf_conntrack_frag6_low_thresh", 318 .procname = "nf_conntrack_frag6_low_thresh",
318 .data = &nf_ct_frag6_low_thresh, 319 .data = &nf_frags_ctl.low_thresh,
319 .maxlen = sizeof(unsigned int), 320 .maxlen = sizeof(unsigned int),
320 .mode = 0644, 321 .mode = 0644,
321 .proc_handler = &proc_dointvec, 322 .proc_handler = &proc_dointvec,
@@ -323,7 +324,7 @@ static ctl_table nf_ct_ipv6_sysctl_table[] = {
323 { 324 {
324 .ctl_name = NET_NF_CONNTRACK_FRAG6_HIGH_THRESH, 325 .ctl_name = NET_NF_CONNTRACK_FRAG6_HIGH_THRESH,
325 .procname = "nf_conntrack_frag6_high_thresh", 326 .procname = "nf_conntrack_frag6_high_thresh",
326 .data = &nf_ct_frag6_high_thresh, 327 .data = &nf_frags_ctl.high_thresh,
327 .maxlen = sizeof(unsigned int), 328 .maxlen = sizeof(unsigned int),
328 .mode = 0644, 329 .mode = 0644,
329 .proc_handler = &proc_dointvec, 330 .proc_handler = &proc_dointvec,
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 25442a8c1ba8..726fafd41961 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -31,6 +31,7 @@
31 31
32#include <net/sock.h> 32#include <net/sock.h>
33#include <net/snmp.h> 33#include <net/snmp.h>
34#include <net/inet_frag.h>
34 35
35#include <net/ipv6.h> 36#include <net/ipv6.h>
36#include <net/protocol.h> 37#include <net/protocol.h>
@@ -48,10 +49,6 @@
48#define NF_CT_FRAG6_LOW_THRESH 196608 /* == 192*1024 */ 49#define NF_CT_FRAG6_LOW_THRESH 196608 /* == 192*1024 */
49#define NF_CT_FRAG6_TIMEOUT IPV6_FRAG_TIMEOUT 50#define NF_CT_FRAG6_TIMEOUT IPV6_FRAG_TIMEOUT
50 51
51unsigned int nf_ct_frag6_high_thresh __read_mostly = 256*1024;
52unsigned int nf_ct_frag6_low_thresh __read_mostly = 192*1024;
53unsigned long nf_ct_frag6_timeout __read_mostly = IPV6_FRAG_TIMEOUT;
54
55struct nf_ct_frag6_skb_cb 52struct nf_ct_frag6_skb_cb
56{ 53{
57 struct inet6_skb_parm h; 54 struct inet6_skb_parm h;
@@ -63,51 +60,24 @@ struct nf_ct_frag6_skb_cb
63 60
64struct nf_ct_frag6_queue 61struct nf_ct_frag6_queue
65{ 62{
66 struct hlist_node list; 63 struct inet_frag_queue q;
67 struct list_head lru_list; /* lru list member */
68 64
69 __be32 id; /* fragment id */ 65 __be32 id; /* fragment id */
70 struct in6_addr saddr; 66 struct in6_addr saddr;
71 struct in6_addr daddr; 67 struct in6_addr daddr;
72 68
73 spinlock_t lock;
74 atomic_t refcnt;
75 struct timer_list timer; /* expire timer */
76 struct sk_buff *fragments;
77 int len;
78 int meat;
79 ktime_t stamp;
80 unsigned int csum; 69 unsigned int csum;
81 __u8 last_in; /* has first/last segment arrived? */
82#define COMPLETE 4
83#define FIRST_IN 2
84#define LAST_IN 1
85 __u16 nhoffset; 70 __u16 nhoffset;
86}; 71};
87 72
88/* Hash table. */ 73struct inet_frags_ctl nf_frags_ctl __read_mostly = {
89 74 .high_thresh = 256 * 1024,
90#define FRAG6Q_HASHSZ 64 75 .low_thresh = 192 * 1024,
91 76 .timeout = IPV6_FRAG_TIMEOUT,
92static struct hlist_head nf_ct_frag6_hash[FRAG6Q_HASHSZ]; 77 .secret_interval = 10 * 60 * HZ,
93static DEFINE_RWLOCK(nf_ct_frag6_lock); 78};
94static u32 nf_ct_frag6_hash_rnd;
95static LIST_HEAD(nf_ct_frag6_lru_list);
96int nf_ct_frag6_nqueues = 0;
97
98static __inline__ void __fq_unlink(struct nf_ct_frag6_queue *fq)
99{
100 hlist_del(&fq->list);
101 list_del(&fq->lru_list);
102 nf_ct_frag6_nqueues--;
103}
104 79
105static __inline__ void fq_unlink(struct nf_ct_frag6_queue *fq) 80static struct inet_frags nf_frags;
106{
107 write_lock(&nf_ct_frag6_lock);
108 __fq_unlink(fq);
109 write_unlock(&nf_ct_frag6_lock);
110}
111 81
112static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr, 82static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
113 struct in6_addr *daddr) 83 struct in6_addr *daddr)
@@ -120,7 +90,7 @@ static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
120 90
121 a += JHASH_GOLDEN_RATIO; 91 a += JHASH_GOLDEN_RATIO;
122 b += JHASH_GOLDEN_RATIO; 92 b += JHASH_GOLDEN_RATIO;
123 c += nf_ct_frag6_hash_rnd; 93 c += nf_frags.rnd;
124 __jhash_mix(a, b, c); 94 __jhash_mix(a, b, c);
125 95
126 a += (__force u32)saddr->s6_addr32[3]; 96 a += (__force u32)saddr->s6_addr32[3];
@@ -133,100 +103,54 @@ static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
133 c += (__force u32)id; 103 c += (__force u32)id;
134 __jhash_mix(a, b, c); 104 __jhash_mix(a, b, c);
135 105
136 return c & (FRAG6Q_HASHSZ - 1); 106 return c & (INETFRAGS_HASHSZ - 1);
137} 107}
138 108
139static struct timer_list nf_ct_frag6_secret_timer; 109static unsigned int nf_hashfn(struct inet_frag_queue *q)
140int nf_ct_frag6_secret_interval = 10 * 60 * HZ;
141
142static void nf_ct_frag6_secret_rebuild(unsigned long dummy)
143{ 110{
144 unsigned long now = jiffies; 111 struct nf_ct_frag6_queue *nq;
145 int i;
146
147 write_lock(&nf_ct_frag6_lock);
148 get_random_bytes(&nf_ct_frag6_hash_rnd, sizeof(u32));
149 for (i = 0; i < FRAG6Q_HASHSZ; i++) {
150 struct nf_ct_frag6_queue *q;
151 struct hlist_node *p, *n;
152
153 hlist_for_each_entry_safe(q, p, n, &nf_ct_frag6_hash[i], list) {
154 unsigned int hval = ip6qhashfn(q->id,
155 &q->saddr,
156 &q->daddr);
157 if (hval != i) {
158 hlist_del(&q->list);
159 /* Relink to new hash chain. */
160 hlist_add_head(&q->list,
161 &nf_ct_frag6_hash[hval]);
162 }
163 }
164 }
165 write_unlock(&nf_ct_frag6_lock);
166 112
167 mod_timer(&nf_ct_frag6_secret_timer, now + nf_ct_frag6_secret_interval); 113 nq = container_of(q, struct nf_ct_frag6_queue, q);
114 return ip6qhashfn(nq->id, &nq->saddr, &nq->daddr);
168} 115}
169 116
170atomic_t nf_ct_frag6_mem = ATOMIC_INIT(0); 117static void nf_skb_free(struct sk_buff *skb)
118{
119 if (NFCT_FRAG6_CB(skb)->orig)
120 kfree_skb(NFCT_FRAG6_CB(skb)->orig);
121}
171 122
172/* Memory Tracking Functions. */ 123/* Memory Tracking Functions. */
173static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work) 124static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work)
174{ 125{
175 if (work) 126 if (work)
176 *work -= skb->truesize; 127 *work -= skb->truesize;
177 atomic_sub(skb->truesize, &nf_ct_frag6_mem); 128 atomic_sub(skb->truesize, &nf_frags.mem);
178 if (NFCT_FRAG6_CB(skb)->orig) 129 nf_skb_free(skb);
179 kfree_skb(NFCT_FRAG6_CB(skb)->orig);
180
181 kfree_skb(skb); 130 kfree_skb(skb);
182} 131}
183 132
184static inline void frag_free_queue(struct nf_ct_frag6_queue *fq, 133static void nf_frag_free(struct inet_frag_queue *q)
185 unsigned int *work)
186{ 134{
187 if (work) 135 kfree(container_of(q, struct nf_ct_frag6_queue, q));
188 *work -= sizeof(struct nf_ct_frag6_queue);
189 atomic_sub(sizeof(struct nf_ct_frag6_queue), &nf_ct_frag6_mem);
190 kfree(fq);
191} 136}
192 137
193static inline struct nf_ct_frag6_queue *frag_alloc_queue(void) 138static inline struct nf_ct_frag6_queue *frag_alloc_queue(void)
194{ 139{
195 struct nf_ct_frag6_queue *fq = kmalloc(sizeof(struct nf_ct_frag6_queue), GFP_ATOMIC); 140 struct nf_ct_frag6_queue *fq;
196 141
197 if (!fq) 142 fq = kzalloc(sizeof(struct nf_ct_frag6_queue), GFP_ATOMIC);
143 if (fq == NULL)
198 return NULL; 144 return NULL;
199 atomic_add(sizeof(struct nf_ct_frag6_queue), &nf_ct_frag6_mem); 145 atomic_add(sizeof(struct nf_ct_frag6_queue), &nf_frags.mem);
200 return fq; 146 return fq;
201} 147}
202 148
203/* Destruction primitives. */ 149/* Destruction primitives. */
204 150
205/* Complete destruction of fq. */ 151static __inline__ void fq_put(struct nf_ct_frag6_queue *fq)
206static void nf_ct_frag6_destroy(struct nf_ct_frag6_queue *fq,
207 unsigned int *work)
208{ 152{
209 struct sk_buff *fp; 153 inet_frag_put(&fq->q, &nf_frags);
210
211 BUG_TRAP(fq->last_in&COMPLETE);
212 BUG_TRAP(del_timer(&fq->timer) == 0);
213
214 /* Release all fragment data. */
215 fp = fq->fragments;
216 while (fp) {
217 struct sk_buff *xp = fp->next;
218
219 frag_kfree_skb(fp, work);
220 fp = xp;
221 }
222
223 frag_free_queue(fq, work);
224}
225
226static __inline__ void fq_put(struct nf_ct_frag6_queue *fq, unsigned int *work)
227{
228 if (atomic_dec_and_test(&fq->refcnt))
229 nf_ct_frag6_destroy(fq, work);
230} 154}
231 155
232/* Kill fq entry. It is not destroyed immediately, 156/* Kill fq entry. It is not destroyed immediately,
@@ -234,62 +158,28 @@ static __inline__ void fq_put(struct nf_ct_frag6_queue *fq, unsigned int *work)
234 */ 158 */
235static __inline__ void fq_kill(struct nf_ct_frag6_queue *fq) 159static __inline__ void fq_kill(struct nf_ct_frag6_queue *fq)
236{ 160{
237 if (del_timer(&fq->timer)) 161 inet_frag_kill(&fq->q, &nf_frags);
238 atomic_dec(&fq->refcnt);
239
240 if (!(fq->last_in & COMPLETE)) {
241 fq_unlink(fq);
242 atomic_dec(&fq->refcnt);
243 fq->last_in |= COMPLETE;
244 }
245} 162}
246 163
247static void nf_ct_frag6_evictor(void) 164static void nf_ct_frag6_evictor(void)
248{ 165{
249 struct nf_ct_frag6_queue *fq; 166 inet_frag_evictor(&nf_frags);
250 struct list_head *tmp;
251 unsigned int work;
252
253 work = atomic_read(&nf_ct_frag6_mem);
254 if (work <= nf_ct_frag6_low_thresh)
255 return;
256
257 work -= nf_ct_frag6_low_thresh;
258 while (work > 0) {
259 read_lock(&nf_ct_frag6_lock);
260 if (list_empty(&nf_ct_frag6_lru_list)) {
261 read_unlock(&nf_ct_frag6_lock);
262 return;
263 }
264 tmp = nf_ct_frag6_lru_list.next;
265 BUG_ON(tmp == NULL);
266 fq = list_entry(tmp, struct nf_ct_frag6_queue, lru_list);
267 atomic_inc(&fq->refcnt);
268 read_unlock(&nf_ct_frag6_lock);
269
270 spin_lock(&fq->lock);
271 if (!(fq->last_in&COMPLETE))
272 fq_kill(fq);
273 spin_unlock(&fq->lock);
274
275 fq_put(fq, &work);
276 }
277} 167}
278 168
279static void nf_ct_frag6_expire(unsigned long data) 169static void nf_ct_frag6_expire(unsigned long data)
280{ 170{
281 struct nf_ct_frag6_queue *fq = (struct nf_ct_frag6_queue *) data; 171 struct nf_ct_frag6_queue *fq = (struct nf_ct_frag6_queue *) data;
282 172
283 spin_lock(&fq->lock); 173 spin_lock(&fq->q.lock);
284 174
285 if (fq->last_in & COMPLETE) 175 if (fq->q.last_in & COMPLETE)
286 goto out; 176 goto out;
287 177
288 fq_kill(fq); 178 fq_kill(fq);
289 179
290out: 180out:
291 spin_unlock(&fq->lock); 181 spin_unlock(&fq->q.lock);
292 fq_put(fq, NULL); 182 fq_put(fq);
293} 183}
294 184
295/* Creation primitives. */ 185/* Creation primitives. */
@@ -302,31 +192,31 @@ static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
302 struct hlist_node *n; 192 struct hlist_node *n;
303#endif 193#endif
304 194
305 write_lock(&nf_ct_frag6_lock); 195 write_lock(&nf_frags.lock);
306#ifdef CONFIG_SMP 196#ifdef CONFIG_SMP
307 hlist_for_each_entry(fq, n, &nf_ct_frag6_hash[hash], list) { 197 hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) {
308 if (fq->id == fq_in->id && 198 if (fq->id == fq_in->id &&
309 ipv6_addr_equal(&fq_in->saddr, &fq->saddr) && 199 ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
310 ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) { 200 ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
311 atomic_inc(&fq->refcnt); 201 atomic_inc(&fq->q.refcnt);
312 write_unlock(&nf_ct_frag6_lock); 202 write_unlock(&nf_frags.lock);
313 fq_in->last_in |= COMPLETE; 203 fq_in->q.last_in |= COMPLETE;
314 fq_put(fq_in, NULL); 204 fq_put(fq_in);
315 return fq; 205 return fq;
316 } 206 }
317 } 207 }
318#endif 208#endif
319 fq = fq_in; 209 fq = fq_in;
320 210
321 if (!mod_timer(&fq->timer, jiffies + nf_ct_frag6_timeout)) 211 if (!mod_timer(&fq->q.timer, jiffies + nf_frags_ctl.timeout))
322 atomic_inc(&fq->refcnt); 212 atomic_inc(&fq->q.refcnt);
323 213
324 atomic_inc(&fq->refcnt); 214 atomic_inc(&fq->q.refcnt);
325 hlist_add_head(&fq->list, &nf_ct_frag6_hash[hash]); 215 hlist_add_head(&fq->q.list, &nf_frags.hash[hash]);
326 INIT_LIST_HEAD(&fq->lru_list); 216 INIT_LIST_HEAD(&fq->q.lru_list);
327 list_add_tail(&fq->lru_list, &nf_ct_frag6_lru_list); 217 list_add_tail(&fq->q.lru_list, &nf_frags.lru_list);
328 nf_ct_frag6_nqueues++; 218 nf_frags.nqueues++;
329 write_unlock(&nf_ct_frag6_lock); 219 write_unlock(&nf_frags.lock);
330 return fq; 220 return fq;
331} 221}
332 222
@@ -341,15 +231,13 @@ nf_ct_frag6_create(unsigned int hash, __be32 id, struct in6_addr *src, str
341 goto oom; 231 goto oom;
342 } 232 }
343 233
344 memset(fq, 0, sizeof(struct nf_ct_frag6_queue));
345
346 fq->id = id; 234 fq->id = id;
347 ipv6_addr_copy(&fq->saddr, src); 235 ipv6_addr_copy(&fq->saddr, src);
348 ipv6_addr_copy(&fq->daddr, dst); 236 ipv6_addr_copy(&fq->daddr, dst);
349 237
350 setup_timer(&fq->timer, nf_ct_frag6_expire, (unsigned long)fq); 238 setup_timer(&fq->q.timer, nf_ct_frag6_expire, (unsigned long)fq);
351 spin_lock_init(&fq->lock); 239 spin_lock_init(&fq->q.lock);
352 atomic_set(&fq->refcnt, 1); 240 atomic_set(&fq->q.refcnt, 1);
353 241
354 return nf_ct_frag6_intern(hash, fq); 242 return nf_ct_frag6_intern(hash, fq);
355 243
@@ -364,17 +252,17 @@ fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
364 struct hlist_node *n; 252 struct hlist_node *n;
365 unsigned int hash = ip6qhashfn(id, src, dst); 253 unsigned int hash = ip6qhashfn(id, src, dst);
366 254
367 read_lock(&nf_ct_frag6_lock); 255 read_lock(&nf_frags.lock);
368 hlist_for_each_entry(fq, n, &nf_ct_frag6_hash[hash], list) { 256 hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) {
369 if (fq->id == id && 257 if (fq->id == id &&
370 ipv6_addr_equal(src, &fq->saddr) && 258 ipv6_addr_equal(src, &fq->saddr) &&
371 ipv6_addr_equal(dst, &fq->daddr)) { 259 ipv6_addr_equal(dst, &fq->daddr)) {
372 atomic_inc(&fq->refcnt); 260 atomic_inc(&fq->q.refcnt);
373 read_unlock(&nf_ct_frag6_lock); 261 read_unlock(&nf_frags.lock);
374 return fq; 262 return fq;
375 } 263 }
376 } 264 }
377 read_unlock(&nf_ct_frag6_lock); 265 read_unlock(&nf_frags.lock);
378 266
379 return nf_ct_frag6_create(hash, id, src, dst); 267 return nf_ct_frag6_create(hash, id, src, dst);
380} 268}
@@ -386,7 +274,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
386 struct sk_buff *prev, *next; 274 struct sk_buff *prev, *next;
387 int offset, end; 275 int offset, end;
388 276
389 if (fq->last_in & COMPLETE) { 277 if (fq->q.last_in & COMPLETE) {
390 pr_debug("Allready completed\n"); 278 pr_debug("Allready completed\n");
391 goto err; 279 goto err;
392 } 280 }
@@ -412,13 +300,13 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
412 /* If we already have some bits beyond end 300 /* If we already have some bits beyond end
413 * or have different end, the segment is corrupted. 301 * or have different end, the segment is corrupted.
414 */ 302 */
415 if (end < fq->len || 303 if (end < fq->q.len ||
416 ((fq->last_in & LAST_IN) && end != fq->len)) { 304 ((fq->q.last_in & LAST_IN) && end != fq->q.len)) {
417 pr_debug("already received last fragment\n"); 305 pr_debug("already received last fragment\n");
418 goto err; 306 goto err;
419 } 307 }
420 fq->last_in |= LAST_IN; 308 fq->q.last_in |= LAST_IN;
421 fq->len = end; 309 fq->q.len = end;
422 } else { 310 } else {
423 /* Check if the fragment is rounded to 8 bytes. 311 /* Check if the fragment is rounded to 8 bytes.
424 * Required by the RFC. 312 * Required by the RFC.
@@ -430,13 +318,13 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
430 pr_debug("end of fragment not rounded to 8 bytes.\n"); 318 pr_debug("end of fragment not rounded to 8 bytes.\n");
431 return -1; 319 return -1;
432 } 320 }
433 if (end > fq->len) { 321 if (end > fq->q.len) {
434 /* Some bits beyond end -> corruption. */ 322 /* Some bits beyond end -> corruption. */
435 if (fq->last_in & LAST_IN) { 323 if (fq->q.last_in & LAST_IN) {
436 pr_debug("last packet already reached.\n"); 324 pr_debug("last packet already reached.\n");
437 goto err; 325 goto err;
438 } 326 }
439 fq->len = end; 327 fq->q.len = end;
440 } 328 }
441 } 329 }
442 330
@@ -458,7 +346,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
458 * this fragment, right? 346 * this fragment, right?
459 */ 347 */
460 prev = NULL; 348 prev = NULL;
461 for (next = fq->fragments; next != NULL; next = next->next) { 349 for (next = fq->q.fragments; next != NULL; next = next->next) {
462 if (NFCT_FRAG6_CB(next)->offset >= offset) 350 if (NFCT_FRAG6_CB(next)->offset >= offset)
463 break; /* bingo! */ 351 break; /* bingo! */
464 prev = next; 352 prev = next;
@@ -503,7 +391,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
503 391
504 /* next fragment */ 392 /* next fragment */
505 NFCT_FRAG6_CB(next)->offset += i; 393 NFCT_FRAG6_CB(next)->offset += i;
506 fq->meat -= i; 394 fq->q.meat -= i;
507 if (next->ip_summed != CHECKSUM_UNNECESSARY) 395 if (next->ip_summed != CHECKSUM_UNNECESSARY)
508 next->ip_summed = CHECKSUM_NONE; 396 next->ip_summed = CHECKSUM_NONE;
509 break; 397 break;
@@ -518,9 +406,9 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
518 if (prev) 406 if (prev)
519 prev->next = next; 407 prev->next = next;
520 else 408 else
521 fq->fragments = next; 409 fq->q.fragments = next;
522 410
523 fq->meat -= free_it->len; 411 fq->q.meat -= free_it->len;
524 frag_kfree_skb(free_it, NULL); 412 frag_kfree_skb(free_it, NULL);
525 } 413 }
526 } 414 }
@@ -532,23 +420,23 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
532 if (prev) 420 if (prev)
533 prev->next = skb; 421 prev->next = skb;
534 else 422 else
535 fq->fragments = skb; 423 fq->q.fragments = skb;
536 424
537 skb->dev = NULL; 425 skb->dev = NULL;
538 fq->stamp = skb->tstamp; 426 fq->q.stamp = skb->tstamp;
539 fq->meat += skb->len; 427 fq->q.meat += skb->len;
540 atomic_add(skb->truesize, &nf_ct_frag6_mem); 428 atomic_add(skb->truesize, &nf_frags.mem);
541 429
542 /* The first fragment. 430 /* The first fragment.
543 * nhoffset is obtained from the first fragment, of course. 431 * nhoffset is obtained from the first fragment, of course.
544 */ 432 */
545 if (offset == 0) { 433 if (offset == 0) {
546 fq->nhoffset = nhoff; 434 fq->nhoffset = nhoff;
547 fq->last_in |= FIRST_IN; 435 fq->q.last_in |= FIRST_IN;
548 } 436 }
549 write_lock(&nf_ct_frag6_lock); 437 write_lock(&nf_frags.lock);
550 list_move_tail(&fq->lru_list, &nf_ct_frag6_lru_list); 438 list_move_tail(&fq->q.lru_list, &nf_frags.lru_list);
551 write_unlock(&nf_ct_frag6_lock); 439 write_unlock(&nf_frags.lock);
552 return 0; 440 return 0;
553 441
554err: 442err:
@@ -567,7 +455,7 @@ err:
567static struct sk_buff * 455static struct sk_buff *
568nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev) 456nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
569{ 457{
570 struct sk_buff *fp, *op, *head = fq->fragments; 458 struct sk_buff *fp, *op, *head = fq->q.fragments;
571 int payload_len; 459 int payload_len;
572 460
573 fq_kill(fq); 461 fq_kill(fq);
@@ -577,7 +465,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
577 465
578 /* Unfragmented part is taken from the first segment. */ 466 /* Unfragmented part is taken from the first segment. */
579 payload_len = ((head->data - skb_network_header(head)) - 467 payload_len = ((head->data - skb_network_header(head)) -
580 sizeof(struct ipv6hdr) + fq->len - 468 sizeof(struct ipv6hdr) + fq->q.len -
581 sizeof(struct frag_hdr)); 469 sizeof(struct frag_hdr));
582 if (payload_len > IPV6_MAXPLEN) { 470 if (payload_len > IPV6_MAXPLEN) {
583 pr_debug("payload len is too large.\n"); 471 pr_debug("payload len is too large.\n");
@@ -614,7 +502,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
614 clone->ip_summed = head->ip_summed; 502 clone->ip_summed = head->ip_summed;
615 503
616 NFCT_FRAG6_CB(clone)->orig = NULL; 504 NFCT_FRAG6_CB(clone)->orig = NULL;
617 atomic_add(clone->truesize, &nf_ct_frag6_mem); 505 atomic_add(clone->truesize, &nf_frags.mem);
618 } 506 }
619 507
620 /* We have to remove fragment header from datagram and to relocate 508 /* We have to remove fragment header from datagram and to relocate
@@ -628,7 +516,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
628 skb_shinfo(head)->frag_list = head->next; 516 skb_shinfo(head)->frag_list = head->next;
629 skb_reset_transport_header(head); 517 skb_reset_transport_header(head);
630 skb_push(head, head->data - skb_network_header(head)); 518 skb_push(head, head->data - skb_network_header(head));
631 atomic_sub(head->truesize, &nf_ct_frag6_mem); 519 atomic_sub(head->truesize, &nf_frags.mem);
632 520
633 for (fp=head->next; fp; fp = fp->next) { 521 for (fp=head->next; fp; fp = fp->next) {
634 head->data_len += fp->len; 522 head->data_len += fp->len;
@@ -638,12 +526,12 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
638 else if (head->ip_summed == CHECKSUM_COMPLETE) 526 else if (head->ip_summed == CHECKSUM_COMPLETE)
639 head->csum = csum_add(head->csum, fp->csum); 527 head->csum = csum_add(head->csum, fp->csum);
640 head->truesize += fp->truesize; 528 head->truesize += fp->truesize;
641 atomic_sub(fp->truesize, &nf_ct_frag6_mem); 529 atomic_sub(fp->truesize, &nf_frags.mem);
642 } 530 }
643 531
644 head->next = NULL; 532 head->next = NULL;
645 head->dev = dev; 533 head->dev = dev;
646 head->tstamp = fq->stamp; 534 head->tstamp = fq->q.stamp;
647 ipv6_hdr(head)->payload_len = htons(payload_len); 535 ipv6_hdr(head)->payload_len = htons(payload_len);
648 536
649 /* Yes, and fold redundant checksum back. 8) */ 537 /* Yes, and fold redundant checksum back. 8) */
@@ -652,7 +540,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
652 skb_network_header_len(head), 540 skb_network_header_len(head),
653 head->csum); 541 head->csum);
654 542
655 fq->fragments = NULL; 543 fq->q.fragments = NULL;
656 544
657 /* all original skbs are linked into the NFCT_FRAG6_CB(head).orig */ 545 /* all original skbs are linked into the NFCT_FRAG6_CB(head).orig */
658 fp = skb_shinfo(head)->frag_list; 546 fp = skb_shinfo(head)->frag_list;
@@ -788,7 +676,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
788 goto ret_orig; 676 goto ret_orig;
789 } 677 }
790 678
791 if (atomic_read(&nf_ct_frag6_mem) > nf_ct_frag6_high_thresh) 679 if (atomic_read(&nf_frags.mem) > nf_frags_ctl.high_thresh)
792 nf_ct_frag6_evictor(); 680 nf_ct_frag6_evictor();
793 681
794 fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr); 682 fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr);
@@ -797,23 +685,23 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
797 goto ret_orig; 685 goto ret_orig;
798 } 686 }
799 687
800 spin_lock(&fq->lock); 688 spin_lock(&fq->q.lock);
801 689
802 if (nf_ct_frag6_queue(fq, clone, fhdr, nhoff) < 0) { 690 if (nf_ct_frag6_queue(fq, clone, fhdr, nhoff) < 0) {
803 spin_unlock(&fq->lock); 691 spin_unlock(&fq->q.lock);
804 pr_debug("Can't insert skb to queue\n"); 692 pr_debug("Can't insert skb to queue\n");
805 fq_put(fq, NULL); 693 fq_put(fq);
806 goto ret_orig; 694 goto ret_orig;
807 } 695 }
808 696
809 if (fq->last_in == (FIRST_IN|LAST_IN) && fq->meat == fq->len) { 697 if (fq->q.last_in == (FIRST_IN|LAST_IN) && fq->q.meat == fq->q.len) {
810 ret_skb = nf_ct_frag6_reasm(fq, dev); 698 ret_skb = nf_ct_frag6_reasm(fq, dev);
811 if (ret_skb == NULL) 699 if (ret_skb == NULL)
812 pr_debug("Can't reassemble fragmented packets\n"); 700 pr_debug("Can't reassemble fragmented packets\n");
813 } 701 }
814 spin_unlock(&fq->lock); 702 spin_unlock(&fq->q.lock);
815 703
816 fq_put(fq, NULL); 704 fq_put(fq);
817 return ret_skb; 705 return ret_skb;
818 706
819ret_orig: 707ret_orig:
@@ -859,20 +747,20 @@ int nf_ct_frag6_kfree_frags(struct sk_buff *skb)
859 747
860int nf_ct_frag6_init(void) 748int nf_ct_frag6_init(void)
861{ 749{
862 nf_ct_frag6_hash_rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^ 750 nf_frags.ctl = &nf_frags_ctl;
863 (jiffies ^ (jiffies >> 6))); 751 nf_frags.hashfn = nf_hashfn;
864 752 nf_frags.destructor = nf_frag_free;
865 setup_timer(&nf_ct_frag6_secret_timer, nf_ct_frag6_secret_rebuild, 0); 753 nf_frags.skb_free = nf_skb_free;
866 nf_ct_frag6_secret_timer.expires = jiffies 754 nf_frags.qsize = sizeof(struct nf_ct_frag6_queue);
867 + nf_ct_frag6_secret_interval; 755 inet_frags_init(&nf_frags);
868 add_timer(&nf_ct_frag6_secret_timer);
869 756
870 return 0; 757 return 0;
871} 758}
872 759
873void nf_ct_frag6_cleanup(void) 760void nf_ct_frag6_cleanup(void)
874{ 761{
875 del_timer(&nf_ct_frag6_secret_timer); 762 inet_frags_fini(&nf_frags);
876 nf_ct_frag6_low_thresh = 0; 763
764 nf_frags_ctl.low_thresh = 0;
877 nf_ct_frag6_evictor(); 765 nf_ct_frag6_evictor();
878} 766}
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index db945018579e..be526ad92543 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -54,7 +54,7 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v)
54 seq_printf(seq, "RAW6: inuse %d\n", 54 seq_printf(seq, "RAW6: inuse %d\n",
55 fold_prot_inuse(&rawv6_prot)); 55 fold_prot_inuse(&rawv6_prot));
56 seq_printf(seq, "FRAG6: inuse %d memory %d\n", 56 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
57 ip6_frag_nqueues, atomic_read(&ip6_frag_mem)); 57 ip6_frag_nqueues(), ip6_frag_mem());
58 return 0; 58 return 0;
59} 59}
60 60
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 31601c993541..6ad19cfc2025 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -42,6 +42,7 @@
42#include <linux/icmpv6.h> 42#include <linux/icmpv6.h>
43#include <linux/random.h> 43#include <linux/random.h>
44#include <linux/jhash.h> 44#include <linux/jhash.h>
45#include <linux/skbuff.h>
45 46
46#include <net/sock.h> 47#include <net/sock.h>
47#include <net/snmp.h> 48#include <net/snmp.h>
@@ -53,11 +54,7 @@
53#include <net/rawv6.h> 54#include <net/rawv6.h>
54#include <net/ndisc.h> 55#include <net/ndisc.h>
55#include <net/addrconf.h> 56#include <net/addrconf.h>
56 57#include <net/inet_frag.h>
57int sysctl_ip6frag_high_thresh __read_mostly = 256*1024;
58int sysctl_ip6frag_low_thresh __read_mostly = 192*1024;
59
60int sysctl_ip6frag_time __read_mostly = IPV6_FRAG_TIMEOUT;
61 58
62struct ip6frag_skb_cb 59struct ip6frag_skb_cb
63{ 60{
@@ -74,53 +71,39 @@ struct ip6frag_skb_cb
74 71
75struct frag_queue 72struct frag_queue
76{ 73{
77 struct hlist_node list; 74 struct inet_frag_queue q;
78 struct list_head lru_list; /* lru list member */
79 75
80 __be32 id; /* fragment id */ 76 __be32 id; /* fragment id */
81 struct in6_addr saddr; 77 struct in6_addr saddr;
82 struct in6_addr daddr; 78 struct in6_addr daddr;
83 79
84 spinlock_t lock;
85 atomic_t refcnt;
86 struct timer_list timer; /* expire timer */
87 struct sk_buff *fragments;
88 int len;
89 int meat;
90 int iif; 80 int iif;
91 ktime_t stamp;
92 unsigned int csum; 81 unsigned int csum;
93 __u8 last_in; /* has first/last segment arrived? */
94#define COMPLETE 4
95#define FIRST_IN 2
96#define LAST_IN 1
97 __u16 nhoffset; 82 __u16 nhoffset;
98}; 83};
99 84
100/* Hash table. */ 85struct inet_frags_ctl ip6_frags_ctl __read_mostly = {
101 86 .high_thresh = 256 * 1024,
102#define IP6Q_HASHSZ 64 87 .low_thresh = 192 * 1024,
88 .timeout = IPV6_FRAG_TIMEOUT,
89 .secret_interval = 10 * 60 * HZ,
90};
103 91
104static struct hlist_head ip6_frag_hash[IP6Q_HASHSZ]; 92static struct inet_frags ip6_frags;
105static DEFINE_RWLOCK(ip6_frag_lock);
106static u32 ip6_frag_hash_rnd;
107static LIST_HEAD(ip6_frag_lru_list);
108int ip6_frag_nqueues = 0;
109 93
110static __inline__ void __fq_unlink(struct frag_queue *fq) 94int ip6_frag_nqueues(void)
111{ 95{
112 hlist_del(&fq->list); 96 return ip6_frags.nqueues;
113 list_del(&fq->lru_list);
114 ip6_frag_nqueues--;
115} 97}
116 98
117static __inline__ void fq_unlink(struct frag_queue *fq) 99int ip6_frag_mem(void)
118{ 100{
119 write_lock(&ip6_frag_lock); 101 return atomic_read(&ip6_frags.mem);
120 __fq_unlink(fq);
121 write_unlock(&ip6_frag_lock);
122} 102}
123 103
104static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
105 struct net_device *dev);
106
124/* 107/*
125 * callers should be careful not to use the hash value outside the ipfrag_lock 108 * callers should be careful not to use the hash value outside the ipfrag_lock
126 * as doing so could race with ipfrag_hash_rnd being recalculated. 109 * as doing so could race with ipfrag_hash_rnd being recalculated.
@@ -136,7 +119,7 @@ static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
136 119
137 a += JHASH_GOLDEN_RATIO; 120 a += JHASH_GOLDEN_RATIO;
138 b += JHASH_GOLDEN_RATIO; 121 b += JHASH_GOLDEN_RATIO;
139 c += ip6_frag_hash_rnd; 122 c += ip6_frags.rnd;
140 __jhash_mix(a, b, c); 123 __jhash_mix(a, b, c);
141 124
142 a += (__force u32)saddr->s6_addr32[3]; 125 a += (__force u32)saddr->s6_addr32[3];
@@ -149,60 +132,29 @@ static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
149 c += (__force u32)id; 132 c += (__force u32)id;
150 __jhash_mix(a, b, c); 133 __jhash_mix(a, b, c);
151 134
152 return c & (IP6Q_HASHSZ - 1); 135 return c & (INETFRAGS_HASHSZ - 1);
153} 136}
154 137
155static struct timer_list ip6_frag_secret_timer; 138static unsigned int ip6_hashfn(struct inet_frag_queue *q)
156int sysctl_ip6frag_secret_interval __read_mostly = 10 * 60 * HZ;
157
158static void ip6_frag_secret_rebuild(unsigned long dummy)
159{ 139{
160 unsigned long now = jiffies; 140 struct frag_queue *fq;
161 int i;
162
163 write_lock(&ip6_frag_lock);
164 get_random_bytes(&ip6_frag_hash_rnd, sizeof(u32));
165 for (i = 0; i < IP6Q_HASHSZ; i++) {
166 struct frag_queue *q;
167 struct hlist_node *p, *n;
168
169 hlist_for_each_entry_safe(q, p, n, &ip6_frag_hash[i], list) {
170 unsigned int hval = ip6qhashfn(q->id,
171 &q->saddr,
172 &q->daddr);
173
174 if (hval != i) {
175 hlist_del(&q->list);
176
177 /* Relink to new hash chain. */
178 hlist_add_head(&q->list,
179 &ip6_frag_hash[hval]);
180
181 }
182 }
183 }
184 write_unlock(&ip6_frag_lock);
185 141
186 mod_timer(&ip6_frag_secret_timer, now + sysctl_ip6frag_secret_interval); 142 fq = container_of(q, struct frag_queue, q);
143 return ip6qhashfn(fq->id, &fq->saddr, &fq->daddr);
187} 144}
188 145
189atomic_t ip6_frag_mem = ATOMIC_INIT(0);
190
191/* Memory Tracking Functions. */ 146/* Memory Tracking Functions. */
192static inline void frag_kfree_skb(struct sk_buff *skb, int *work) 147static inline void frag_kfree_skb(struct sk_buff *skb, int *work)
193{ 148{
194 if (work) 149 if (work)
195 *work -= skb->truesize; 150 *work -= skb->truesize;
196 atomic_sub(skb->truesize, &ip6_frag_mem); 151 atomic_sub(skb->truesize, &ip6_frags.mem);
197 kfree_skb(skb); 152 kfree_skb(skb);
198} 153}
199 154
200static inline void frag_free_queue(struct frag_queue *fq, int *work) 155static void ip6_frag_free(struct inet_frag_queue *fq)
201{ 156{
202 if (work) 157 kfree(container_of(fq, struct frag_queue, q));
203 *work -= sizeof(struct frag_queue);
204 atomic_sub(sizeof(struct frag_queue), &ip6_frag_mem);
205 kfree(fq);
206} 158}
207 159
208static inline struct frag_queue *frag_alloc_queue(void) 160static inline struct frag_queue *frag_alloc_queue(void)
@@ -211,36 +163,15 @@ static inline struct frag_queue *frag_alloc_queue(void)
211 163
212 if(!fq) 164 if(!fq)
213 return NULL; 165 return NULL;
214 atomic_add(sizeof(struct frag_queue), &ip6_frag_mem); 166 atomic_add(sizeof(struct frag_queue), &ip6_frags.mem);
215 return fq; 167 return fq;
216} 168}
217 169
218/* Destruction primitives. */ 170/* Destruction primitives. */
219 171
220/* Complete destruction of fq. */ 172static __inline__ void fq_put(struct frag_queue *fq)
221static void ip6_frag_destroy(struct frag_queue *fq, int *work)
222{
223 struct sk_buff *fp;
224
225 BUG_TRAP(fq->last_in&COMPLETE);
226 BUG_TRAP(del_timer(&fq->timer) == 0);
227
228 /* Release all fragment data. */
229 fp = fq->fragments;
230 while (fp) {
231 struct sk_buff *xp = fp->next;
232
233 frag_kfree_skb(fp, work);
234 fp = xp;
235 }
236
237 frag_free_queue(fq, work);
238}
239
240static __inline__ void fq_put(struct frag_queue *fq, int *work)
241{ 173{
242 if (atomic_dec_and_test(&fq->refcnt)) 174 inet_frag_put(&fq->q, &ip6_frags);
243 ip6_frag_destroy(fq, work);
244} 175}
245 176
246/* Kill fq entry. It is not destroyed immediately, 177/* Kill fq entry. It is not destroyed immediately,
@@ -248,45 +179,16 @@ static __inline__ void fq_put(struct frag_queue *fq, int *work)
248 */ 179 */
249static __inline__ void fq_kill(struct frag_queue *fq) 180static __inline__ void fq_kill(struct frag_queue *fq)
250{ 181{
251 if (del_timer(&fq->timer)) 182 inet_frag_kill(&fq->q, &ip6_frags);
252 atomic_dec(&fq->refcnt);
253
254 if (!(fq->last_in & COMPLETE)) {
255 fq_unlink(fq);
256 atomic_dec(&fq->refcnt);
257 fq->last_in |= COMPLETE;
258 }
259} 183}
260 184
261static void ip6_evictor(struct inet6_dev *idev) 185static void ip6_evictor(struct inet6_dev *idev)
262{ 186{
263 struct frag_queue *fq; 187 int evicted;
264 struct list_head *tmp; 188
265 int work; 189 evicted = inet_frag_evictor(&ip6_frags);
266 190 if (evicted)
267 work = atomic_read(&ip6_frag_mem) - sysctl_ip6frag_low_thresh; 191 IP6_ADD_STATS_BH(idev, IPSTATS_MIB_REASMFAILS, evicted);
268 if (work <= 0)
269 return;
270
271 while(work > 0) {
272 read_lock(&ip6_frag_lock);
273 if (list_empty(&ip6_frag_lru_list)) {
274 read_unlock(&ip6_frag_lock);
275 return;
276 }
277 tmp = ip6_frag_lru_list.next;
278 fq = list_entry(tmp, struct frag_queue, lru_list);
279 atomic_inc(&fq->refcnt);
280 read_unlock(&ip6_frag_lock);
281
282 spin_lock(&fq->lock);
283 if (!(fq->last_in&COMPLETE))
284 fq_kill(fq);
285 spin_unlock(&fq->lock);
286
287 fq_put(fq, &work);
288 IP6_INC_STATS_BH(idev, IPSTATS_MIB_REASMFAILS);
289 }
290} 192}
291 193
292static void ip6_frag_expire(unsigned long data) 194static void ip6_frag_expire(unsigned long data)
@@ -294,9 +196,9 @@ static void ip6_frag_expire(unsigned long data)
294 struct frag_queue *fq = (struct frag_queue *) data; 196 struct frag_queue *fq = (struct frag_queue *) data;
295 struct net_device *dev = NULL; 197 struct net_device *dev = NULL;
296 198
297 spin_lock(&fq->lock); 199 spin_lock(&fq->q.lock);
298 200
299 if (fq->last_in & COMPLETE) 201 if (fq->q.last_in & COMPLETE)
300 goto out; 202 goto out;
301 203
302 fq_kill(fq); 204 fq_kill(fq);
@@ -311,7 +213,7 @@ static void ip6_frag_expire(unsigned long data)
311 rcu_read_unlock(); 213 rcu_read_unlock();
312 214
313 /* Don't send error if the first segment did not arrive. */ 215 /* Don't send error if the first segment did not arrive. */
314 if (!(fq->last_in&FIRST_IN) || !fq->fragments) 216 if (!(fq->q.last_in&FIRST_IN) || !fq->q.fragments)
315 goto out; 217 goto out;
316 218
317 /* 219 /*
@@ -319,13 +221,13 @@ static void ip6_frag_expire(unsigned long data)
319 segment was received. And do not use fq->dev 221 segment was received. And do not use fq->dev
320 pointer directly, device might already disappeared. 222 pointer directly, device might already disappeared.
321 */ 223 */
322 fq->fragments->dev = dev; 224 fq->q.fragments->dev = dev;
323 icmpv6_send(fq->fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0, dev); 225 icmpv6_send(fq->q.fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0, dev);
324out: 226out:
325 if (dev) 227 if (dev)
326 dev_put(dev); 228 dev_put(dev);
327 spin_unlock(&fq->lock); 229 spin_unlock(&fq->q.lock);
328 fq_put(fq, NULL); 230 fq_put(fq);
329} 231}
330 232
331/* Creation primitives. */ 233/* Creation primitives. */
@@ -339,32 +241,32 @@ static struct frag_queue *ip6_frag_intern(struct frag_queue *fq_in)
339 struct hlist_node *n; 241 struct hlist_node *n;
340#endif 242#endif
341 243
342 write_lock(&ip6_frag_lock); 244 write_lock(&ip6_frags.lock);
343 hash = ip6qhashfn(fq_in->id, &fq_in->saddr, &fq_in->daddr); 245 hash = ip6qhashfn(fq_in->id, &fq_in->saddr, &fq_in->daddr);
344#ifdef CONFIG_SMP 246#ifdef CONFIG_SMP
345 hlist_for_each_entry(fq, n, &ip6_frag_hash[hash], list) { 247 hlist_for_each_entry(fq, n, &ip6_frags.hash[hash], q.list) {
346 if (fq->id == fq_in->id && 248 if (fq->id == fq_in->id &&
347 ipv6_addr_equal(&fq_in->saddr, &fq->saddr) && 249 ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
348 ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) { 250 ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
349 atomic_inc(&fq->refcnt); 251 atomic_inc(&fq->q.refcnt);
350 write_unlock(&ip6_frag_lock); 252 write_unlock(&ip6_frags.lock);
351 fq_in->last_in |= COMPLETE; 253 fq_in->q.last_in |= COMPLETE;
352 fq_put(fq_in, NULL); 254 fq_put(fq_in);
353 return fq; 255 return fq;
354 } 256 }
355 } 257 }
356#endif 258#endif
357 fq = fq_in; 259 fq = fq_in;
358 260
359 if (!mod_timer(&fq->timer, jiffies + sysctl_ip6frag_time)) 261 if (!mod_timer(&fq->q.timer, jiffies + ip6_frags_ctl.timeout))
360 atomic_inc(&fq->refcnt); 262 atomic_inc(&fq->q.refcnt);
361 263
362 atomic_inc(&fq->refcnt); 264 atomic_inc(&fq->q.refcnt);
363 hlist_add_head(&fq->list, &ip6_frag_hash[hash]); 265 hlist_add_head(&fq->q.list, &ip6_frags.hash[hash]);
364 INIT_LIST_HEAD(&fq->lru_list); 266 INIT_LIST_HEAD(&fq->q.lru_list);
365 list_add_tail(&fq->lru_list, &ip6_frag_lru_list); 267 list_add_tail(&fq->q.lru_list, &ip6_frags.lru_list);
366 ip6_frag_nqueues++; 268 ip6_frags.nqueues++;
367 write_unlock(&ip6_frag_lock); 269 write_unlock(&ip6_frags.lock);
368 return fq; 270 return fq;
369} 271}
370 272
@@ -382,11 +284,11 @@ ip6_frag_create(__be32 id, struct in6_addr *src, struct in6_addr *dst,
382 ipv6_addr_copy(&fq->saddr, src); 284 ipv6_addr_copy(&fq->saddr, src);
383 ipv6_addr_copy(&fq->daddr, dst); 285 ipv6_addr_copy(&fq->daddr, dst);
384 286
385 init_timer(&fq->timer); 287 init_timer(&fq->q.timer);
386 fq->timer.function = ip6_frag_expire; 288 fq->q.timer.function = ip6_frag_expire;
387 fq->timer.data = (long) fq; 289 fq->q.timer.data = (long) fq;
388 spin_lock_init(&fq->lock); 290 spin_lock_init(&fq->q.lock);
389 atomic_set(&fq->refcnt, 1); 291 atomic_set(&fq->q.refcnt, 1);
390 292
391 return ip6_frag_intern(fq); 293 return ip6_frag_intern(fq);
392 294
@@ -403,30 +305,31 @@ fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst,
403 struct hlist_node *n; 305 struct hlist_node *n;
404 unsigned int hash; 306 unsigned int hash;
405 307
406 read_lock(&ip6_frag_lock); 308 read_lock(&ip6_frags.lock);
407 hash = ip6qhashfn(id, src, dst); 309 hash = ip6qhashfn(id, src, dst);
408 hlist_for_each_entry(fq, n, &ip6_frag_hash[hash], list) { 310 hlist_for_each_entry(fq, n, &ip6_frags.hash[hash], q.list) {
409 if (fq->id == id && 311 if (fq->id == id &&
410 ipv6_addr_equal(src, &fq->saddr) && 312 ipv6_addr_equal(src, &fq->saddr) &&
411 ipv6_addr_equal(dst, &fq->daddr)) { 313 ipv6_addr_equal(dst, &fq->daddr)) {
412 atomic_inc(&fq->refcnt); 314 atomic_inc(&fq->q.refcnt);
413 read_unlock(&ip6_frag_lock); 315 read_unlock(&ip6_frags.lock);
414 return fq; 316 return fq;
415 } 317 }
416 } 318 }
417 read_unlock(&ip6_frag_lock); 319 read_unlock(&ip6_frags.lock);
418 320
419 return ip6_frag_create(id, src, dst, idev); 321 return ip6_frag_create(id, src, dst, idev);
420} 322}
421 323
422 324
423static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb, 325static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
424 struct frag_hdr *fhdr, int nhoff) 326 struct frag_hdr *fhdr, int nhoff)
425{ 327{
426 struct sk_buff *prev, *next; 328 struct sk_buff *prev, *next;
329 struct net_device *dev;
427 int offset, end; 330 int offset, end;
428 331
429 if (fq->last_in & COMPLETE) 332 if (fq->q.last_in & COMPLETE)
430 goto err; 333 goto err;
431 334
432 offset = ntohs(fhdr->frag_off) & ~0x7; 335 offset = ntohs(fhdr->frag_off) & ~0x7;
@@ -439,7 +342,7 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
439 icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, 342 icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
440 ((u8 *)&fhdr->frag_off - 343 ((u8 *)&fhdr->frag_off -
441 skb_network_header(skb))); 344 skb_network_header(skb)));
442 return; 345 return -1;
443 } 346 }
444 347
445 if (skb->ip_summed == CHECKSUM_COMPLETE) { 348 if (skb->ip_summed == CHECKSUM_COMPLETE) {
@@ -454,11 +357,11 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
454 /* If we already have some bits beyond end 357 /* If we already have some bits beyond end
455 * or have different end, the segment is corrupted. 358 * or have different end, the segment is corrupted.
456 */ 359 */
457 if (end < fq->len || 360 if (end < fq->q.len ||
458 ((fq->last_in & LAST_IN) && end != fq->len)) 361 ((fq->q.last_in & LAST_IN) && end != fq->q.len))
459 goto err; 362 goto err;
460 fq->last_in |= LAST_IN; 363 fq->q.last_in |= LAST_IN;
461 fq->len = end; 364 fq->q.len = end;
462 } else { 365 } else {
463 /* Check if the fragment is rounded to 8 bytes. 366 /* Check if the fragment is rounded to 8 bytes.
464 * Required by the RFC. 367 * Required by the RFC.
@@ -471,13 +374,13 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
471 IPSTATS_MIB_INHDRERRORS); 374 IPSTATS_MIB_INHDRERRORS);
472 icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, 375 icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
473 offsetof(struct ipv6hdr, payload_len)); 376 offsetof(struct ipv6hdr, payload_len));
474 return; 377 return -1;
475 } 378 }
476 if (end > fq->len) { 379 if (end > fq->q.len) {
477 /* Some bits beyond end -> corruption. */ 380 /* Some bits beyond end -> corruption. */
478 if (fq->last_in & LAST_IN) 381 if (fq->q.last_in & LAST_IN)
479 goto err; 382 goto err;
480 fq->len = end; 383 fq->q.len = end;
481 } 384 }
482 } 385 }
483 386
@@ -496,7 +399,7 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
496 * this fragment, right? 399 * this fragment, right?
497 */ 400 */
498 prev = NULL; 401 prev = NULL;
499 for(next = fq->fragments; next != NULL; next = next->next) { 402 for(next = fq->q.fragments; next != NULL; next = next->next) {
500 if (FRAG6_CB(next)->offset >= offset) 403 if (FRAG6_CB(next)->offset >= offset)
501 break; /* bingo! */ 404 break; /* bingo! */
502 prev = next; 405 prev = next;
@@ -533,7 +436,7 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
533 if (!pskb_pull(next, i)) 436 if (!pskb_pull(next, i))
534 goto err; 437 goto err;
535 FRAG6_CB(next)->offset += i; /* next fragment */ 438 FRAG6_CB(next)->offset += i; /* next fragment */
536 fq->meat -= i; 439 fq->q.meat -= i;
537 if (next->ip_summed != CHECKSUM_UNNECESSARY) 440 if (next->ip_summed != CHECKSUM_UNNECESSARY)
538 next->ip_summed = CHECKSUM_NONE; 441 next->ip_summed = CHECKSUM_NONE;
539 break; 442 break;
@@ -548,9 +451,9 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
548 if (prev) 451 if (prev)
549 prev->next = next; 452 prev->next = next;
550 else 453 else
551 fq->fragments = next; 454 fq->q.fragments = next;
552 455
553 fq->meat -= free_it->len; 456 fq->q.meat -= free_it->len;
554 frag_kfree_skb(free_it, NULL); 457 frag_kfree_skb(free_it, NULL);
555 } 458 }
556 } 459 }
@@ -562,30 +465,37 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
562 if (prev) 465 if (prev)
563 prev->next = skb; 466 prev->next = skb;
564 else 467 else
565 fq->fragments = skb; 468 fq->q.fragments = skb;
566 469
567 if (skb->dev) 470 dev = skb->dev;
568 fq->iif = skb->dev->ifindex; 471 if (dev) {
569 skb->dev = NULL; 472 fq->iif = dev->ifindex;
570 fq->stamp = skb->tstamp; 473 skb->dev = NULL;
571 fq->meat += skb->len; 474 }
572 atomic_add(skb->truesize, &ip6_frag_mem); 475 fq->q.stamp = skb->tstamp;
476 fq->q.meat += skb->len;
477 atomic_add(skb->truesize, &ip6_frags.mem);
573 478
574 /* The first fragment. 479 /* The first fragment.
575 * nhoffset is obtained from the first fragment, of course. 480 * nhoffset is obtained from the first fragment, of course.
576 */ 481 */
577 if (offset == 0) { 482 if (offset == 0) {
578 fq->nhoffset = nhoff; 483 fq->nhoffset = nhoff;
579 fq->last_in |= FIRST_IN; 484 fq->q.last_in |= FIRST_IN;
580 } 485 }
581 write_lock(&ip6_frag_lock); 486
582 list_move_tail(&fq->lru_list, &ip6_frag_lru_list); 487 if (fq->q.last_in == (FIRST_IN | LAST_IN) && fq->q.meat == fq->q.len)
583 write_unlock(&ip6_frag_lock); 488 return ip6_frag_reasm(fq, prev, dev);
584 return; 489
490 write_lock(&ip6_frags.lock);
491 list_move_tail(&fq->q.lru_list, &ip6_frags.lru_list);
492 write_unlock(&ip6_frags.lock);
493 return -1;
585 494
586err: 495err:
587 IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS); 496 IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS);
588 kfree_skb(skb); 497 kfree_skb(skb);
498 return -1;
589} 499}
590 500
591/* 501/*
@@ -597,21 +507,39 @@ err:
597 * queue is eligible for reassembly i.e. it is not COMPLETE, 507 * queue is eligible for reassembly i.e. it is not COMPLETE,
598 * the last and the first frames arrived and all the bits are here. 508 * the last and the first frames arrived and all the bits are here.
599 */ 509 */
600static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in, 510static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
601 struct net_device *dev) 511 struct net_device *dev)
602{ 512{
603 struct sk_buff *fp, *head = fq->fragments; 513 struct sk_buff *fp, *head = fq->q.fragments;
604 int payload_len; 514 int payload_len;
605 unsigned int nhoff; 515 unsigned int nhoff;
606 516
607 fq_kill(fq); 517 fq_kill(fq);
608 518
519 /* Make the one we just received the head. */
520 if (prev) {
521 head = prev->next;
522 fp = skb_clone(head, GFP_ATOMIC);
523
524 if (!fp)
525 goto out_oom;
526
527 fp->next = head->next;
528 prev->next = fp;
529
530 skb_morph(head, fq->q.fragments);
531 head->next = fq->q.fragments->next;
532
533 kfree_skb(fq->q.fragments);
534 fq->q.fragments = head;
535 }
536
609 BUG_TRAP(head != NULL); 537 BUG_TRAP(head != NULL);
610 BUG_TRAP(FRAG6_CB(head)->offset == 0); 538 BUG_TRAP(FRAG6_CB(head)->offset == 0);
611 539
612 /* Unfragmented part is taken from the first segment. */ 540 /* Unfragmented part is taken from the first segment. */
613 payload_len = ((head->data - skb_network_header(head)) - 541 payload_len = ((head->data - skb_network_header(head)) -
614 sizeof(struct ipv6hdr) + fq->len - 542 sizeof(struct ipv6hdr) + fq->q.len -
615 sizeof(struct frag_hdr)); 543 sizeof(struct frag_hdr));
616 if (payload_len > IPV6_MAXPLEN) 544 if (payload_len > IPV6_MAXPLEN)
617 goto out_oversize; 545 goto out_oversize;
@@ -640,7 +568,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
640 head->len -= clone->len; 568 head->len -= clone->len;
641 clone->csum = 0; 569 clone->csum = 0;
642 clone->ip_summed = head->ip_summed; 570 clone->ip_summed = head->ip_summed;
643 atomic_add(clone->truesize, &ip6_frag_mem); 571 atomic_add(clone->truesize, &ip6_frags.mem);
644 } 572 }
645 573
646 /* We have to remove fragment header from datagram and to relocate 574 /* We have to remove fragment header from datagram and to relocate
@@ -655,7 +583,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
655 skb_shinfo(head)->frag_list = head->next; 583 skb_shinfo(head)->frag_list = head->next;
656 skb_reset_transport_header(head); 584 skb_reset_transport_header(head);
657 skb_push(head, head->data - skb_network_header(head)); 585 skb_push(head, head->data - skb_network_header(head));
658 atomic_sub(head->truesize, &ip6_frag_mem); 586 atomic_sub(head->truesize, &ip6_frags.mem);
659 587
660 for (fp=head->next; fp; fp = fp->next) { 588 for (fp=head->next; fp; fp = fp->next) {
661 head->data_len += fp->len; 589 head->data_len += fp->len;
@@ -665,17 +593,15 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
665 else if (head->ip_summed == CHECKSUM_COMPLETE) 593 else if (head->ip_summed == CHECKSUM_COMPLETE)
666 head->csum = csum_add(head->csum, fp->csum); 594 head->csum = csum_add(head->csum, fp->csum);
667 head->truesize += fp->truesize; 595 head->truesize += fp->truesize;
668 atomic_sub(fp->truesize, &ip6_frag_mem); 596 atomic_sub(fp->truesize, &ip6_frags.mem);
669 } 597 }
670 598
671 head->next = NULL; 599 head->next = NULL;
672 head->dev = dev; 600 head->dev = dev;
673 head->tstamp = fq->stamp; 601 head->tstamp = fq->q.stamp;
674 ipv6_hdr(head)->payload_len = htons(payload_len); 602 ipv6_hdr(head)->payload_len = htons(payload_len);
675 IP6CB(head)->nhoff = nhoff; 603 IP6CB(head)->nhoff = nhoff;
676 604
677 *skb_in = head;
678
679 /* Yes, and fold redundant checksum back. 8) */ 605 /* Yes, and fold redundant checksum back. 8) */
680 if (head->ip_summed == CHECKSUM_COMPLETE) 606 if (head->ip_summed == CHECKSUM_COMPLETE)
681 head->csum = csum_partial(skb_network_header(head), 607 head->csum = csum_partial(skb_network_header(head),
@@ -685,7 +611,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
685 rcu_read_lock(); 611 rcu_read_lock();
686 IP6_INC_STATS_BH(__in6_dev_get(dev), IPSTATS_MIB_REASMOKS); 612 IP6_INC_STATS_BH(__in6_dev_get(dev), IPSTATS_MIB_REASMOKS);
687 rcu_read_unlock(); 613 rcu_read_unlock();
688 fq->fragments = NULL; 614 fq->q.fragments = NULL;
689 return 1; 615 return 1;
690 616
691out_oversize: 617out_oversize:
@@ -702,10 +628,8 @@ out_fail:
702 return -1; 628 return -1;
703} 629}
704 630
705static int ipv6_frag_rcv(struct sk_buff **skbp) 631static int ipv6_frag_rcv(struct sk_buff *skb)
706{ 632{
707 struct sk_buff *skb = *skbp;
708 struct net_device *dev = skb->dev;
709 struct frag_hdr *fhdr; 633 struct frag_hdr *fhdr;
710 struct frag_queue *fq; 634 struct frag_queue *fq;
711 struct ipv6hdr *hdr = ipv6_hdr(skb); 635 struct ipv6hdr *hdr = ipv6_hdr(skb);
@@ -739,23 +663,19 @@ static int ipv6_frag_rcv(struct sk_buff **skbp)
739 return 1; 663 return 1;
740 } 664 }
741 665
742 if (atomic_read(&ip6_frag_mem) > sysctl_ip6frag_high_thresh) 666 if (atomic_read(&ip6_frags.mem) > ip6_frags_ctl.high_thresh)
743 ip6_evictor(ip6_dst_idev(skb->dst)); 667 ip6_evictor(ip6_dst_idev(skb->dst));
744 668
745 if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr, 669 if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr,
746 ip6_dst_idev(skb->dst))) != NULL) { 670 ip6_dst_idev(skb->dst))) != NULL) {
747 int ret = -1; 671 int ret;
748 672
749 spin_lock(&fq->lock); 673 spin_lock(&fq->q.lock);
750 674
751 ip6_frag_queue(fq, skb, fhdr, IP6CB(skb)->nhoff); 675 ret = ip6_frag_queue(fq, skb, fhdr, IP6CB(skb)->nhoff);
752 676
753 if (fq->last_in == (FIRST_IN|LAST_IN) && 677 spin_unlock(&fq->q.lock);
754 fq->meat == fq->len) 678 fq_put(fq);
755 ret = ip6_frag_reasm(fq, skbp, dev);
756
757 spin_unlock(&fq->lock);
758 fq_put(fq, NULL);
759 return ret; 679 return ret;
760 } 680 }
761 681
@@ -775,11 +695,10 @@ void __init ipv6_frag_init(void)
775 if (inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT) < 0) 695 if (inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT) < 0)
776 printk(KERN_ERR "ipv6_frag_init: Could not register protocol\n"); 696 printk(KERN_ERR "ipv6_frag_init: Could not register protocol\n");
777 697
778 ip6_frag_hash_rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^ 698 ip6_frags.ctl = &ip6_frags_ctl;
779 (jiffies ^ (jiffies >> 6))); 699 ip6_frags.hashfn = ip6_hashfn;
780 700 ip6_frags.destructor = ip6_frag_free;
781 init_timer(&ip6_frag_secret_timer); 701 ip6_frags.skb_free = NULL;
782 ip6_frag_secret_timer.function = ip6_frag_secret_rebuild; 702 ip6_frags.qsize = sizeof(struct frag_queue);
783 ip6_frag_secret_timer.expires = jiffies + sysctl_ip6frag_secret_interval; 703 inet_frags_init(&ip6_frags);
784 add_timer(&ip6_frag_secret_timer);
785} 704}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6ff19f9eb9ee..cce9941c11c6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -663,7 +663,7 @@ static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, struct in6_addr *d
663 return rt; 663 return rt;
664} 664}
665 665
666static struct rt6_info *ip6_pol_route_input(struct fib6_table *table, 666static struct rt6_info *ip6_pol_route(struct fib6_table *table, int oif,
667 struct flowi *fl, int flags) 667 struct flowi *fl, int flags)
668{ 668{
669 struct fib6_node *fn; 669 struct fib6_node *fn;
@@ -682,7 +682,7 @@ restart_2:
682 fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src); 682 fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src);
683 683
684restart: 684restart:
685 rt = rt6_select(fn, fl->iif, strict | reachable); 685 rt = rt6_select(fn, oif, strict | reachable);
686 BACKTRACK(&fl->fl6_src); 686 BACKTRACK(&fl->fl6_src);
687 if (rt == &ip6_null_entry || 687 if (rt == &ip6_null_entry ||
688 rt->rt6i_flags & RTF_CACHE) 688 rt->rt6i_flags & RTF_CACHE)
@@ -735,6 +735,12 @@ out2:
735 return rt; 735 return rt;
736} 736}
737 737
738static struct rt6_info *ip6_pol_route_input(struct fib6_table *table,
739 struct flowi *fl, int flags)
740{
741 return ip6_pol_route(table, fl->iif, fl, flags);
742}
743
738void ip6_route_input(struct sk_buff *skb) 744void ip6_route_input(struct sk_buff *skb)
739{ 745{
740 struct ipv6hdr *iph = ipv6_hdr(skb); 746 struct ipv6hdr *iph = ipv6_hdr(skb);
@@ -761,72 +767,7 @@ void ip6_route_input(struct sk_buff *skb)
761static struct rt6_info *ip6_pol_route_output(struct fib6_table *table, 767static struct rt6_info *ip6_pol_route_output(struct fib6_table *table,
762 struct flowi *fl, int flags) 768 struct flowi *fl, int flags)
763{ 769{
764 struct fib6_node *fn; 770 return ip6_pol_route(table, fl->oif, fl, flags);
765 struct rt6_info *rt, *nrt;
766 int strict = 0;
767 int attempts = 3;
768 int err;
769 int reachable = ipv6_devconf.forwarding ? 0 : RT6_LOOKUP_F_REACHABLE;
770
771 strict |= flags & RT6_LOOKUP_F_IFACE;
772
773relookup:
774 read_lock_bh(&table->tb6_lock);
775
776restart_2:
777 fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src);
778
779restart:
780 rt = rt6_select(fn, fl->oif, strict | reachable);
781 BACKTRACK(&fl->fl6_src);
782 if (rt == &ip6_null_entry ||
783 rt->rt6i_flags & RTF_CACHE)
784 goto out;
785
786 dst_hold(&rt->u.dst);
787 read_unlock_bh(&table->tb6_lock);
788
789 if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
790 nrt = rt6_alloc_cow(rt, &fl->fl6_dst, &fl->fl6_src);
791 else {
792#if CLONE_OFFLINK_ROUTE
793 nrt = rt6_alloc_clone(rt, &fl->fl6_dst);
794#else
795 goto out2;
796#endif
797 }
798
799 dst_release(&rt->u.dst);
800 rt = nrt ? : &ip6_null_entry;
801
802 dst_hold(&rt->u.dst);
803 if (nrt) {
804 err = ip6_ins_rt(nrt);
805 if (!err)
806 goto out2;
807 }
808
809 if (--attempts <= 0)
810 goto out2;
811
812 /*
813 * Race condition! In the gap, when table->tb6_lock was
814 * released someone could insert this route. Relookup.
815 */
816 dst_release(&rt->u.dst);
817 goto relookup;
818
819out:
820 if (reachable) {
821 reachable = 0;
822 goto restart_2;
823 }
824 dst_hold(&rt->u.dst);
825 read_unlock_bh(&table->tb6_lock);
826out2:
827 rt->u.dst.lastuse = jiffies;
828 rt->u.dst.__use++;
829 return rt;
830} 771}
831 772
832struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl) 773struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 3fb44277207b..68bb2548e469 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -12,6 +12,7 @@
12#include <net/ndisc.h> 12#include <net/ndisc.h>
13#include <net/ipv6.h> 13#include <net/ipv6.h>
14#include <net/addrconf.h> 14#include <net/addrconf.h>
15#include <net/inet_frag.h>
15 16
16#ifdef CONFIG_SYSCTL 17#ifdef CONFIG_SYSCTL
17 18
@@ -41,7 +42,7 @@ static ctl_table ipv6_table[] = {
41 { 42 {
42 .ctl_name = NET_IPV6_IP6FRAG_HIGH_THRESH, 43 .ctl_name = NET_IPV6_IP6FRAG_HIGH_THRESH,
43 .procname = "ip6frag_high_thresh", 44 .procname = "ip6frag_high_thresh",
44 .data = &sysctl_ip6frag_high_thresh, 45 .data = &ip6_frags_ctl.high_thresh,
45 .maxlen = sizeof(int), 46 .maxlen = sizeof(int),
46 .mode = 0644, 47 .mode = 0644,
47 .proc_handler = &proc_dointvec 48 .proc_handler = &proc_dointvec
@@ -49,7 +50,7 @@ static ctl_table ipv6_table[] = {
49 { 50 {
50 .ctl_name = NET_IPV6_IP6FRAG_LOW_THRESH, 51 .ctl_name = NET_IPV6_IP6FRAG_LOW_THRESH,
51 .procname = "ip6frag_low_thresh", 52 .procname = "ip6frag_low_thresh",
52 .data = &sysctl_ip6frag_low_thresh, 53 .data = &ip6_frags_ctl.low_thresh,
53 .maxlen = sizeof(int), 54 .maxlen = sizeof(int),
54 .mode = 0644, 55 .mode = 0644,
55 .proc_handler = &proc_dointvec 56 .proc_handler = &proc_dointvec
@@ -57,7 +58,7 @@ static ctl_table ipv6_table[] = {
57 { 58 {
58 .ctl_name = NET_IPV6_IP6FRAG_TIME, 59 .ctl_name = NET_IPV6_IP6FRAG_TIME,
59 .procname = "ip6frag_time", 60 .procname = "ip6frag_time",
60 .data = &sysctl_ip6frag_time, 61 .data = &ip6_frags_ctl.timeout,
61 .maxlen = sizeof(int), 62 .maxlen = sizeof(int),
62 .mode = 0644, 63 .mode = 0644,
63 .proc_handler = &proc_dointvec_jiffies, 64 .proc_handler = &proc_dointvec_jiffies,
@@ -66,7 +67,7 @@ static ctl_table ipv6_table[] = {
66 { 67 {
67 .ctl_name = NET_IPV6_IP6FRAG_SECRET_INTERVAL, 68 .ctl_name = NET_IPV6_IP6FRAG_SECRET_INTERVAL,
68 .procname = "ip6frag_secret_interval", 69 .procname = "ip6frag_secret_interval",
69 .data = &sysctl_ip6frag_secret_interval, 70 .data = &ip6_frags_ctl.secret_interval,
70 .maxlen = sizeof(int), 71 .maxlen = sizeof(int),
71 .mode = 0644, 72 .mode = 0644,
72 .proc_handler = &proc_dointvec_jiffies, 73 .proc_handler = &proc_dointvec_jiffies,
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index a07b59c528f3..737b755342bd 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1668,9 +1668,8 @@ ipv6_pktoptions:
1668 return 0; 1668 return 0;
1669} 1669}
1670 1670
1671static int tcp_v6_rcv(struct sk_buff **pskb) 1671static int tcp_v6_rcv(struct sk_buff *skb)
1672{ 1672{
1673 struct sk_buff *skb = *pskb;
1674 struct tcphdr *th; 1673 struct tcphdr *th;
1675 struct sock *sk; 1674 struct sock *sk;
1676 int ret; 1675 int ret;
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 23e2809878ae..6323921b40be 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -87,9 +87,8 @@ int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler, unsigned short family)
87 87
88EXPORT_SYMBOL(xfrm6_tunnel_deregister); 88EXPORT_SYMBOL(xfrm6_tunnel_deregister);
89 89
90static int tunnel6_rcv(struct sk_buff **pskb) 90static int tunnel6_rcv(struct sk_buff *skb)
91{ 91{
92 struct sk_buff *skb = *pskb;
93 struct xfrm6_tunnel *handler; 92 struct xfrm6_tunnel *handler;
94 93
95 if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) 94 if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
@@ -106,9 +105,8 @@ drop:
106 return 0; 105 return 0;
107} 106}
108 107
109static int tunnel46_rcv(struct sk_buff **pskb) 108static int tunnel46_rcv(struct sk_buff *skb)
110{ 109{
111 struct sk_buff *skb = *pskb;
112 struct xfrm6_tunnel *handler; 110 struct xfrm6_tunnel *handler;
113 111
114 if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) 112 if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 82ff26dd4470..caebad6ee510 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -405,10 +405,9 @@ static inline int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh,
405 return 0; 405 return 0;
406} 406}
407 407
408int __udp6_lib_rcv(struct sk_buff **pskb, struct hlist_head udptable[], 408int __udp6_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
409 int proto) 409 int proto)
410{ 410{
411 struct sk_buff *skb = *pskb;
412 struct sock *sk; 411 struct sock *sk;
413 struct udphdr *uh; 412 struct udphdr *uh;
414 struct net_device *dev = skb->dev; 413 struct net_device *dev = skb->dev;
@@ -494,9 +493,9 @@ discard:
494 return 0; 493 return 0;
495} 494}
496 495
497static __inline__ int udpv6_rcv(struct sk_buff **pskb) 496static __inline__ int udpv6_rcv(struct sk_buff *skb)
498{ 497{
499 return __udp6_lib_rcv(pskb, udp_hash, IPPROTO_UDP); 498 return __udp6_lib_rcv(skb, udp_hash, IPPROTO_UDP);
500} 499}
501 500
502/* 501/*
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index 6e252f318f7c..2d3fda601232 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -6,7 +6,7 @@
6#include <net/addrconf.h> 6#include <net/addrconf.h>
7#include <net/inet_common.h> 7#include <net/inet_common.h>
8 8
9extern int __udp6_lib_rcv(struct sk_buff **, struct hlist_head [], int ); 9extern int __udp6_lib_rcv(struct sk_buff *, struct hlist_head [], int );
10extern void __udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *, 10extern void __udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *,
11 int , int , int , __be32 , struct hlist_head []); 11 int , int , int , __be32 , struct hlist_head []);
12 12
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index f54016a55004..766566f7de47 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -17,9 +17,9 @@
17 17
18DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6) __read_mostly; 18DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6) __read_mostly;
19 19
20static int udplitev6_rcv(struct sk_buff **pskb) 20static int udplitev6_rcv(struct sk_buff *skb)
21{ 21{
22 return __udp6_lib_rcv(pskb, udplite_hash, IPPROTO_UDPLITE); 22 return __udp6_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);
23} 23}
24 24
25static void udplitev6_err(struct sk_buff *skb, 25static void udplitev6_err(struct sk_buff *skb,
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index c858537cec4b..02f69e544f6f 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -133,9 +133,9 @@ drop:
133 133
134EXPORT_SYMBOL(xfrm6_rcv_spi); 134EXPORT_SYMBOL(xfrm6_rcv_spi);
135 135
136int xfrm6_rcv(struct sk_buff **pskb) 136int xfrm6_rcv(struct sk_buff *skb)
137{ 137{
138 return xfrm6_rcv_spi(*pskb, 0); 138 return xfrm6_rcv_spi(skb, 0);
139} 139}
140 140
141EXPORT_SYMBOL(xfrm6_rcv); 141EXPORT_SYMBOL(xfrm6_rcv);
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 4618c18e611d..a5a32c17249d 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -80,7 +80,7 @@ static int xfrm6_output_finish2(struct sk_buff *skb)
80 while (likely((err = xfrm6_output_one(skb)) == 0)) { 80 while (likely((err = xfrm6_output_one(skb)) == 0)) {
81 nf_reset(skb); 81 nf_reset(skb);
82 82
83 err = nf_hook(PF_INET6, NF_IP6_LOCAL_OUT, &skb, NULL, 83 err = nf_hook(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL,
84 skb->dst->dev, dst_output); 84 skb->dst->dev, dst_output);
85 if (unlikely(err != 1)) 85 if (unlikely(err != 1))
86 break; 86 break;
@@ -88,7 +88,7 @@ static int xfrm6_output_finish2(struct sk_buff *skb)
88 if (!skb->dst->xfrm) 88 if (!skb->dst->xfrm)
89 return dst_output(skb); 89 return dst_output(skb);
90 90
91 err = nf_hook(PF_INET6, NF_IP6_POST_ROUTING, &skb, NULL, 91 err = nf_hook(PF_INET6, NF_IP6_POST_ROUTING, skb, NULL,
92 skb->dst->dev, xfrm6_output_finish2); 92 skb->dst->dev, xfrm6_output_finish2);
93 if (unlikely(err != 1)) 93 if (unlikely(err != 1))
94 break; 94 break;
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-16 21:16:40 -0500