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-rw-r--r--include/net/rawv6.h19
-rw-r--r--net/ipv6/icmp.c15
-rw-r--r--net/ipv6/ip6_input.c9
-rw-r--r--net/ipv6/raw.c52
4 files changed, 51 insertions, 44 deletions
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
index a5819891d52..8a22599f26b 100644
--- a/include/net/rawv6.h
+++ b/include/net/rawv6.h
@@ -5,26 +5,13 @@
#include <net/protocol.h>
-#define RAWV6_HTABLE_SIZE MAX_INET_PROTOS
-extern struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
-extern rwlock_t raw_v6_lock;
-
-extern int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr);
-
-extern struct sock *__raw_v6_lookup(struct sock *sk, unsigned short num,
- struct in6_addr *loc_addr, struct in6_addr *rmt_addr,
- int dif);
+void raw6_icmp_error(struct sk_buff *, int nexthdr,
+ int type, int code, int inner_offset, __be32);
+int raw6_local_deliver(struct sk_buff *, int);
extern int rawv6_rcv(struct sock *sk,
struct sk_buff *skb);
-
-extern void rawv6_err(struct sock *sk,
- struct sk_buff *skb,
- struct inet6_skb_parm *opt,
- int type, int code,
- int offset, __be32 info);
-
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
struct sk_buff *skb));
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index f1240688dc5..93c96cfd5ee 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -555,9 +555,7 @@ out:
static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)
{
- struct in6_addr *saddr, *daddr;
struct inet6_protocol *ipprot;
- struct sock *sk;
int inner_offset;
int hash;
u8 nexthdr;
@@ -579,9 +577,6 @@ static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)
if (!pskb_may_pull(skb, inner_offset+8))
return;
- saddr = &ipv6_hdr(skb)->saddr;
- daddr = &ipv6_hdr(skb)->daddr;
-
/* BUGGG_FUTURE: we should try to parse exthdrs in this packet.
Without this we will not able f.e. to make source routed
pmtu discovery.
@@ -597,15 +592,7 @@ static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)
ipprot->err_handler(skb, NULL, type, code, inner_offset, info);
rcu_read_unlock();
- read_lock(&raw_v6_lock);
- if ((sk = sk_head(&raw_v6_htable[hash])) != NULL) {
- while ((sk = __raw_v6_lookup(sk, nexthdr, saddr, daddr,
- IP6CB(skb)->iif))) {
- rawv6_err(sk, skb, NULL, type, code, inner_offset, info);
- sk = sk_next(sk);
- }
- }
- read_unlock(&raw_v6_lock);
+ raw6_icmp_error(skb, nexthdr, type, code, inner_offset, info);
}
/*
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 79610b4bad3..178aebc0427 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -153,9 +153,8 @@ out:
static int ip6_input_finish(struct sk_buff *skb)
{
struct inet6_protocol *ipprot;
- struct sock *raw_sk;
unsigned int nhoff;
- int nexthdr;
+ int nexthdr, raw;
u8 hash;
struct inet6_dev *idev;
@@ -171,9 +170,7 @@ resubmit:
nhoff = IP6CB(skb)->nhoff;
nexthdr = skb_network_header(skb)[nhoff];
- raw_sk = sk_head(&raw_v6_htable[nexthdr & (MAX_INET_PROTOS - 1)]);
- if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
- raw_sk = NULL;
+ raw = raw6_local_deliver(skb, nexthdr);
hash = nexthdr & (MAX_INET_PROTOS - 1);
if ((ipprot = rcu_dereference(inet6_protos[hash])) != NULL) {
@@ -206,7 +203,7 @@ resubmit:
else if (ret == 0)
IP6_INC_STATS_BH(idev, IPSTATS_MIB_INDELIVERS);
} else {
- if (!raw_sk) {
+ if (!raw) {
if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
IP6_INC_STATS_BH(idev, IPSTATS_MIB_INUNKNOWNPROTOS);
icmpv6_send(skb, ICMPV6_PARAMPROB,
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index ad622cc11bd..53f01b4982c 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -60,8 +60,10 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
-DEFINE_RWLOCK(raw_v6_lock);
+#define RAWV6_HTABLE_SIZE MAX_INET_PROTOS
+
+static struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
+static DEFINE_RWLOCK(raw_v6_lock);
static void raw_v6_hash(struct sock *sk)
{
@@ -83,10 +85,8 @@ static void raw_v6_unhash(struct sock *sk)
}
-/* Grumble... icmp and ip_input want to get at this... */
-struct sock *__raw_v6_lookup(struct sock *sk, unsigned short num,
- struct in6_addr *loc_addr, struct in6_addr *rmt_addr,
- int dif)
+static struct sock *__raw_v6_lookup(struct sock *sk, unsigned short num,
+ struct in6_addr *loc_addr, struct in6_addr *rmt_addr, int dif)
{
struct hlist_node *node;
int is_multicast = ipv6_addr_is_multicast(loc_addr);
@@ -167,7 +167,7 @@ EXPORT_SYMBOL(rawv6_mh_filter_unregister);
*
* Caller owns SKB so we must make clones.
*/
-int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
+static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
{
struct in6_addr *saddr;
struct in6_addr *daddr;
@@ -242,6 +242,17 @@ out:
return delivered;
}
+int raw6_local_deliver(struct sk_buff *skb, int nexthdr)
+{
+ struct sock *raw_sk;
+
+ raw_sk = sk_head(&raw_v6_htable[nexthdr & (MAX_INET_PROTOS - 1)]);
+ if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
+ raw_sk = NULL;
+
+ return raw_sk != NULL;
+}
+
/* This cleans up af_inet6 a bit. -DaveM */
static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
@@ -316,7 +327,7 @@ out:
return err;
}
-void rawv6_err(struct sock *sk, struct sk_buff *skb,
+static void rawv6_err(struct sock *sk, struct sk_buff *skb,
struct inet6_skb_parm *opt,
int type, int code, int offset, __be32 info)
{
@@ -350,6 +361,31 @@ void rawv6_err(struct sock *sk, struct sk_buff *skb,
}
}
+void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
+ int type, int code, int inner_offset, __be32 info)
+{
+ struct sock *sk;
+ int hash;
+ struct in6_addr *saddr, *daddr;
+
+ hash = nexthdr & (RAWV6_HTABLE_SIZE - 1);
+
+ read_lock(&raw_v6_lock);
+ sk = sk_head(&raw_v6_htable[hash]);
+ if (sk != NULL) {
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
+
+ while ((sk = __raw_v6_lookup(sk, nexthdr, saddr, daddr,
+ IP6CB(skb)->iif))) {
+ rawv6_err(sk, skb, NULL, type, code,
+ inner_offset, info);
+ sk = sk_next(sk);
+ }
+ }
+ read_unlock(&raw_v6_lock);
+}
+
static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
{
if ((raw6_sk(sk)->checksum || sk->sk_filter) &&
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-20 22:11:15 +0000