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-rw-r--r--net/ipv6/addrconf.c10
-rw-r--r--net/ipv6/af_inet6.c1
-rw-r--r--net/ipv6/ah6.c11
-rw-r--r--net/ipv6/esp6.c9
-rw-r--r--net/ipv6/ip6_flowlabel.c57
-rw-r--r--net/ipv6/ipcomp6.c9
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c112
-rw-r--r--net/ipv6/reassembly.c131
-rw-r--r--net/ipv6/xfrm6_input.c14
-rw-r--r--net/ipv6/xfrm6_mode_beet.c1
-rw-r--r--net/ipv6/xfrm6_mode_ro.c9
-rw-r--r--net/ipv6/xfrm6_mode_tunnel.c1
-rw-r--r--net/ipv6/xfrm6_output.c2
-rw-r--r--net/ipv6/xfrm6_policy.c17
-rw-r--r--net/ipv6/xfrm6_state.c7
-rw-r--r--net/ipv6/xfrm6_tunnel.c4
16 files changed, 146 insertions, 249 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 52d10d213217..348bd8d06112 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -255,11 +255,6 @@ static void addrconf_mod_timer(struct inet6_ifaddr *ifp,
static int snmp6_alloc_dev(struct inet6_dev *idev)
{
- int err = -ENOMEM;
-
- if (!idev || !idev->dev)
- return -EINVAL;
-
if (snmp_mib_init((void **)idev->stats.ipv6,
sizeof(struct ipstats_mib),
__alignof__(struct ipstats_mib)) < 0)
@@ -280,15 +275,14 @@ err_icmpmsg:
err_icmp:
snmp_mib_free((void **)idev->stats.ipv6);
err_ip:
- return err;
+ return -ENOMEM;
}
-static int snmp6_free_dev(struct inet6_dev *idev)
+static void snmp6_free_dev(struct inet6_dev *idev)
{
snmp_mib_free((void **)idev->stats.icmpv6msg);
snmp_mib_free((void **)idev->stats.icmpv6);
snmp_mib_free((void **)idev->stats.ipv6);
- return 0;
}
/* Nobody refers to this device, we may destroy it. */
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index bc929381fa46..1b1caf3aa1c1 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -747,6 +747,7 @@ static void cleanup_ipv6_mibs(void)
{
snmp_mib_free((void **)ipv6_statistics);
snmp_mib_free((void **)icmpv6_statistics);
+ snmp_mib_free((void **)icmpv6msg_statistics);
snmp_mib_free((void **)udp_stats_in6);
snmp_mib_free((void **)udplite_stats_in6);
}
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index f9f689162692..67cd06613a25 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -344,6 +344,8 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
goto out;
+ skb->ip_summed = CHECKSUM_NONE;
+
hdr_len = skb->data - skb_network_header(skb);
ah = (struct ip_auth_hdr *)skb->data;
ahp = x->data;
@@ -475,8 +477,15 @@ static int ah6_init_state(struct xfrm_state *x)
x->props.header_len = XFRM_ALIGN8(sizeof(struct ip_auth_hdr) +
ahp->icv_trunc_len);
- if (x->props.mode == XFRM_MODE_TUNNEL)
+ switch (x->props.mode) {
+ case XFRM_MODE_BEET:
+ case XFRM_MODE_TRANSPORT:
+ break;
+ case XFRM_MODE_TUNNEL:
x->props.header_len += sizeof(struct ipv6hdr);
+ default:
+ goto error;
+ }
x->data = ahp;
return 0;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 9eb928598351..b0715432e454 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -354,8 +354,15 @@ static int esp6_init_state(struct xfrm_state *x)
(x->ealg->alg_key_len + 7) / 8))
goto error;
x->props.header_len = sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
- if (x->props.mode == XFRM_MODE_TUNNEL)
+ switch (x->props.mode) {
+ case XFRM_MODE_BEET:
+ case XFRM_MODE_TRANSPORT:
+ break;
+ case XFRM_MODE_TUNNEL:
x->props.header_len += sizeof(struct ipv6hdr);
+ default:
+ goto error;
+ }
x->data = esp;
return 0;
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 217d60f9fc80..b12cc22e7745 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -154,8 +154,10 @@ static void ip6_fl_gc(unsigned long dummy)
write_unlock(&ip6_fl_lock);
}
-static int fl_intern(struct ip6_flowlabel *fl, __be32 label)
+static struct ip6_flowlabel *fl_intern(struct ip6_flowlabel *fl, __be32 label)
{
+ struct ip6_flowlabel *lfl;
+
fl->label = label & IPV6_FLOWLABEL_MASK;
write_lock_bh(&ip6_fl_lock);
@@ -163,12 +165,26 @@ static int fl_intern(struct ip6_flowlabel *fl, __be32 label)
for (;;) {
fl->label = htonl(net_random())&IPV6_FLOWLABEL_MASK;
if (fl->label) {
- struct ip6_flowlabel *lfl;
lfl = __fl_lookup(fl->label);
if (lfl == NULL)
break;
}
}
+ } else {
+ /*
+ * we dropper the ip6_fl_lock, so this entry could reappear
+ * and we need to recheck with it.
+ *
+ * OTOH no need to search the active socket first, like it is
+ * done in ipv6_flowlabel_opt - sock is locked, so new entry
+ * with the same label can only appear on another sock
+ */
+ lfl = __fl_lookup(fl->label);
+ if (lfl != NULL) {
+ atomic_inc(&lfl->users);
+ write_unlock_bh(&ip6_fl_lock);
+ return lfl;
+ }
}
fl->lastuse = jiffies;
@@ -176,7 +192,7 @@ static int fl_intern(struct ip6_flowlabel *fl, __be32 label)
fl_ht[FL_HASH(fl->label)] = fl;
atomic_inc(&fl_size);
write_unlock_bh(&ip6_fl_lock);
- return 0;
+ return NULL;
}
@@ -190,14 +206,17 @@ struct ip6_flowlabel * fl6_sock_lookup(struct sock *sk, __be32 label)
label &= IPV6_FLOWLABEL_MASK;
+ read_lock_bh(&ip6_sk_fl_lock);
for (sfl=np->ipv6_fl_list; sfl; sfl = sfl->next) {
struct ip6_flowlabel *fl = sfl->fl;
if (fl->label == label) {
fl->lastuse = jiffies;
atomic_inc(&fl->users);
+ read_unlock_bh(&ip6_sk_fl_lock);
return fl;
}
}
+ read_unlock_bh(&ip6_sk_fl_lock);
return NULL;
}
@@ -409,6 +428,16 @@ static int ipv6_opt_cmp(struct ipv6_txoptions *o1, struct ipv6_txoptions *o2)
return 0;
}
+static inline void fl_link(struct ipv6_pinfo *np, struct ipv6_fl_socklist *sfl,
+ struct ip6_flowlabel *fl)
+{
+ write_lock_bh(&ip6_sk_fl_lock);
+ sfl->fl = fl;
+ sfl->next = np->ipv6_fl_list;
+ np->ipv6_fl_list = sfl;
+ write_unlock_bh(&ip6_sk_fl_lock);
+}
+
int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
{
int err;
@@ -416,7 +445,8 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
struct in6_flowlabel_req freq;
struct ipv6_fl_socklist *sfl1=NULL;
struct ipv6_fl_socklist *sfl, **sflp;
- struct ip6_flowlabel *fl;
+ struct ip6_flowlabel *fl, *fl1 = NULL;
+
if (optlen < sizeof(freq))
return -EINVAL;
@@ -472,8 +502,6 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
sfl1 = kmalloc(sizeof(*sfl1), GFP_KERNEL);
if (freq.flr_label) {
- struct ip6_flowlabel *fl1 = NULL;
-
err = -EEXIST;
read_lock_bh(&ip6_sk_fl_lock);
for (sfl = np->ipv6_fl_list; sfl; sfl = sfl->next) {
@@ -492,6 +520,7 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
if (fl1 == NULL)
fl1 = fl_lookup(freq.flr_label);
if (fl1) {
+recheck:
err = -EEXIST;
if (freq.flr_flags&IPV6_FL_F_EXCL)
goto release;
@@ -513,11 +542,7 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
fl1->linger = fl->linger;
if ((long)(fl->expires - fl1->expires) > 0)
fl1->expires = fl->expires;
- write_lock_bh(&ip6_sk_fl_lock);
- sfl1->fl = fl1;
- sfl1->next = np->ipv6_fl_list;
- np->ipv6_fl_list = sfl1;
- write_unlock_bh(&ip6_sk_fl_lock);
+ fl_link(np, sfl1, fl1);
fl_free(fl);
return 0;
@@ -534,9 +559,9 @@ release:
if (sfl1 == NULL || (err = mem_check(sk)) != 0)
goto done;
- err = fl_intern(fl, freq.flr_label);
- if (err)
- goto done;
+ fl1 = fl_intern(fl, freq.flr_label);
+ if (fl1 != NULL)
+ goto recheck;
if (!freq.flr_label) {
if (copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
@@ -545,9 +570,7 @@ release:
}
}
- sfl1->fl = fl;
- sfl1->next = np->ipv6_fl_list;
- np->ipv6_fl_list = sfl1;
+ fl_link(np, sfl1, fl);
return 0;
default:
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 28fc8edfdc3a..80ef2a1d39fd 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -411,8 +411,15 @@ static int ipcomp6_init_state(struct xfrm_state *x)
goto out;
x->props.header_len = 0;
- if (x->props.mode == XFRM_MODE_TUNNEL)
+ switch (x->props.mode) {
+ case XFRM_MODE_BEET:
+ case XFRM_MODE_TRANSPORT:
+ break;
+ case XFRM_MODE_TUNNEL:
x->props.header_len += sizeof(struct ipv6hdr);
+ default:
+ goto error;
+ }
mutex_lock(&ipcomp6_resource_mutex);
if (!ipcomp6_alloc_scratches())
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 726fafd41961..e170c67c47a5 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -130,22 +130,6 @@ static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work)
kfree_skb(skb);
}
-static void nf_frag_free(struct inet_frag_queue *q)
-{
- kfree(container_of(q, struct nf_ct_frag6_queue, q));
-}
-
-static inline struct nf_ct_frag6_queue *frag_alloc_queue(void)
-{
- struct nf_ct_frag6_queue *fq;
-
- fq = kzalloc(sizeof(struct nf_ct_frag6_queue), GFP_ATOMIC);
- if (fq == NULL)
- return NULL;
- atomic_add(sizeof(struct nf_ct_frag6_queue), &nf_frags.mem);
- return fq;
-}
-
/* Destruction primitives. */
static __inline__ void fq_put(struct nf_ct_frag6_queue *fq)
@@ -168,7 +152,10 @@ static void nf_ct_frag6_evictor(void)
static void nf_ct_frag6_expire(unsigned long data)
{
- struct nf_ct_frag6_queue *fq = (struct nf_ct_frag6_queue *) data;
+ struct nf_ct_frag6_queue *fq;
+
+ fq = container_of((struct inet_frag_queue *)data,
+ struct nf_ct_frag6_queue, q);
spin_lock(&fq->q.lock);
@@ -184,89 +171,29 @@ out:
/* Creation primitives. */
-static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
- struct nf_ct_frag6_queue *fq_in)
+static __inline__ struct nf_ct_frag6_queue *
+fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
{
- struct nf_ct_frag6_queue *fq;
-#ifdef CONFIG_SMP
- struct hlist_node *n;
-#endif
-
- write_lock(&nf_frags.lock);
-#ifdef CONFIG_SMP
- hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) {
- if (fq->id == fq_in->id &&
- ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
- ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- write_unlock(&nf_frags.lock);
- fq_in->q.last_in |= COMPLETE;
- fq_put(fq_in);
- return fq;
- }
- }
-#endif
- fq = fq_in;
-
- if (!mod_timer(&fq->q.timer, jiffies + nf_frags_ctl.timeout))
- atomic_inc(&fq->q.refcnt);
-
- atomic_inc(&fq->q.refcnt);
- hlist_add_head(&fq->q.list, &nf_frags.hash[hash]);
- INIT_LIST_HEAD(&fq->q.lru_list);
- list_add_tail(&fq->q.lru_list, &nf_frags.lru_list);
- nf_frags.nqueues++;
- write_unlock(&nf_frags.lock);
- return fq;
-}
+ struct inet_frag_queue *q;
+ struct ip6_create_arg arg;
+ unsigned int hash;
+ arg.id = id;
+ arg.src = src;
+ arg.dst = dst;
+ hash = ip6qhashfn(id, src, dst);
-static struct nf_ct_frag6_queue *
-nf_ct_frag6_create(unsigned int hash, __be32 id, struct in6_addr *src, struct in6_addr *dst)
-{
- struct nf_ct_frag6_queue *fq;
-
- if ((fq = frag_alloc_queue()) == NULL) {
- pr_debug("Can't alloc new queue\n");
+ q = inet_frag_find(&nf_frags, &arg, hash);
+ if (q == NULL)
goto oom;
- }
-
- fq->id = id;
- ipv6_addr_copy(&fq->saddr, src);
- ipv6_addr_copy(&fq->daddr, dst);
-
- setup_timer(&fq->q.timer, nf_ct_frag6_expire, (unsigned long)fq);
- spin_lock_init(&fq->q.lock);
- atomic_set(&fq->q.refcnt, 1);
- return nf_ct_frag6_intern(hash, fq);
+ return container_of(q, struct nf_ct_frag6_queue, q);
oom:
+ pr_debug("Can't alloc new queue\n");
return NULL;
}
-static __inline__ struct nf_ct_frag6_queue *
-fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
-{
- struct nf_ct_frag6_queue *fq;
- struct hlist_node *n;
- unsigned int hash = ip6qhashfn(id, src, dst);
-
- read_lock(&nf_frags.lock);
- hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) {
- if (fq->id == id &&
- ipv6_addr_equal(src, &fq->saddr) &&
- ipv6_addr_equal(dst, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- read_unlock(&nf_frags.lock);
- return fq;
- }
- }
- read_unlock(&nf_frags.lock);
-
- return nf_ct_frag6_create(hash, id, src, dst);
-}
-
static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
struct frag_hdr *fhdr, int nhoff)
@@ -749,9 +676,12 @@ int nf_ct_frag6_init(void)
{
nf_frags.ctl = &nf_frags_ctl;
nf_frags.hashfn = nf_hashfn;
- nf_frags.destructor = nf_frag_free;
+ nf_frags.constructor = ip6_frag_init;
+ nf_frags.destructor = NULL;
nf_frags.skb_free = nf_skb_free;
nf_frags.qsize = sizeof(struct nf_ct_frag6_queue);
+ nf_frags.match = ip6_frag_match;
+ nf_frags.frag_expire = nf_ct_frag6_expire;
inet_frags_init(&nf_frags);
return 0;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 6ad19cfc2025..76c88a93b9b5 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -143,6 +143,18 @@ static unsigned int ip6_hashfn(struct inet_frag_queue *q)
return ip6qhashfn(fq->id, &fq->saddr, &fq->daddr);
}
+int ip6_frag_match(struct inet_frag_queue *q, void *a)
+{
+ struct frag_queue *fq;
+ struct ip6_create_arg *arg = a;
+
+ fq = container_of(q, struct frag_queue, q);
+ return (fq->id == arg->id &&
+ ipv6_addr_equal(&fq->saddr, arg->src) &&
+ ipv6_addr_equal(&fq->daddr, arg->dst));
+}
+EXPORT_SYMBOL(ip6_frag_match);
+
/* Memory Tracking Functions. */
static inline void frag_kfree_skb(struct sk_buff *skb, int *work)
{
@@ -152,20 +164,16 @@ static inline void frag_kfree_skb(struct sk_buff *skb, int *work)
kfree_skb(skb);
}
-static void ip6_frag_free(struct inet_frag_queue *fq)
+void ip6_frag_init(struct inet_frag_queue *q, void *a)
{
- kfree(container_of(fq, struct frag_queue, q));
-}
-
-static inline struct frag_queue *frag_alloc_queue(void)
-{
- struct frag_queue *fq = kzalloc(sizeof(struct frag_queue), GFP_ATOMIC);
+ struct frag_queue *fq = container_of(q, struct frag_queue, q);
+ struct ip6_create_arg *arg = a;
- if(!fq)
- return NULL;
- atomic_add(sizeof(struct frag_queue), &ip6_frags.mem);
- return fq;
+ fq->id = arg->id;
+ ipv6_addr_copy(&fq->saddr, arg->src);
+ ipv6_addr_copy(&fq->daddr, arg->dst);
}
+EXPORT_SYMBOL(ip6_frag_init);
/* Destruction primitives. */
@@ -193,9 +201,11 @@ static void ip6_evictor(struct inet6_dev *idev)
static void ip6_frag_expire(unsigned long data)
{
- struct frag_queue *fq = (struct frag_queue *) data;
+ struct frag_queue *fq;
struct net_device *dev = NULL;
+ fq = container_of((struct inet_frag_queue *)data, struct frag_queue, q);
+
spin_lock(&fq->q.lock);
if (fq->q.last_in & COMPLETE)
@@ -230,98 +240,30 @@ out:
fq_put(fq);
}
-/* Creation primitives. */
-
-
-static struct frag_queue *ip6_frag_intern(struct frag_queue *fq_in)
+static __inline__ struct frag_queue *
+fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst,
+ struct inet6_dev *idev)
{
- struct frag_queue *fq;
+ struct inet_frag_queue *q;
+ struct ip6_create_arg arg;
unsigned int hash;
-#ifdef CONFIG_SMP
- struct hlist_node *n;
-#endif
- write_lock(&ip6_frags.lock);
- hash = ip6qhashfn(fq_in->id, &fq_in->saddr, &fq_in->daddr);
-#ifdef CONFIG_SMP
- hlist_for_each_entry(fq, n, &ip6_frags.hash[hash], q.list) {
- if (fq->id == fq_in->id &&
- ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
- ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- write_unlock(&ip6_frags.lock);
- fq_in->q.last_in |= COMPLETE;
- fq_put(fq_in);
- return fq;
- }
- }
-#endif
- fq = fq_in;
-
- if (!mod_timer(&fq->q.timer, jiffies + ip6_frags_ctl.timeout))
- atomic_inc(&fq->q.refcnt);
-
- atomic_inc(&fq->q.refcnt);
- hlist_add_head(&fq->q.list, &ip6_frags.hash[hash]);
- INIT_LIST_HEAD(&fq->q.lru_list);
- list_add_tail(&fq->q.lru_list, &ip6_frags.lru_list);
- ip6_frags.nqueues++;
- write_unlock(&ip6_frags.lock);
- return fq;
-}
-
-
-static struct frag_queue *
-ip6_frag_create(__be32 id, struct in6_addr *src, struct in6_addr *dst,
- struct inet6_dev *idev)
-{
- struct frag_queue *fq;
+ arg.id = id;
+ arg.src = src;
+ arg.dst = dst;
+ hash = ip6qhashfn(id, src, dst);
- if ((fq = frag_alloc_queue()) == NULL)
+ q = inet_frag_find(&ip6_frags, &arg, hash);
+ if (q == NULL)
goto oom;
- fq->id = id;
- ipv6_addr_copy(&fq->saddr, src);
- ipv6_addr_copy(&fq->daddr, dst);
-
- init_timer(&fq->q.timer);
- fq->q.timer.function = ip6_frag_expire;
- fq->q.timer.data = (long) fq;
- spin_lock_init(&fq->q.lock);
- atomic_set(&fq->q.refcnt, 1);
-
- return ip6_frag_intern(fq);
+ return container_of(q, struct frag_queue, q);
oom:
IP6_INC_STATS_BH(idev, IPSTATS_MIB_REASMFAILS);
return NULL;
}
-static __inline__ struct frag_queue *
-fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst,
- struct inet6_dev *idev)
-{
- struct frag_queue *fq;
- struct hlist_node *n;
- unsigned int hash;
-
- read_lock(&ip6_frags.lock);
- hash = ip6qhashfn(id, src, dst);
- hlist_for_each_entry(fq, n, &ip6_frags.hash[hash], q.list) {
- if (fq->id == id &&
- ipv6_addr_equal(src, &fq->saddr) &&
- ipv6_addr_equal(dst, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- read_unlock(&ip6_frags.lock);
- return fq;
- }
- }
- read_unlock(&ip6_frags.lock);
-
- return ip6_frag_create(id, src, dst, idev);
-}
-
-
static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
struct frag_hdr *fhdr, int nhoff)
{
@@ -697,8 +639,11 @@ void __init ipv6_frag_init(void)
ip6_frags.ctl = &ip6_frags_ctl;
ip6_frags.hashfn = ip6_hashfn;
- ip6_frags.destructor = ip6_frag_free;
+ ip6_frags.constructor = ip6_frag_init;
+ ip6_frags.destructor = NULL;
ip6_frags.skb_free = NULL;
ip6_frags.qsize = sizeof(struct frag_queue);
+ ip6_frags.match = ip6_frag_match;
+ ip6_frags.frag_expire = ip6_frag_expire;
inet_frags_init(&ip6_frags);
}
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 02f69e544f6f..515783707e86 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -16,7 +16,7 @@
#include <net/ipv6.h>
#include <net/xfrm.h>
-int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
+int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi)
{
int err;
__be32 seq;
@@ -24,11 +24,9 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
struct xfrm_state *x;
int xfrm_nr = 0;
int decaps = 0;
- int nexthdr;
unsigned int nhoff;
nhoff = IP6CB(skb)->nhoff;
- nexthdr = skb_network_header(skb)[nhoff];
seq = 0;
if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0)
@@ -41,7 +39,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
goto drop;
x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, spi,
- nexthdr != IPPROTO_IPIP ? nexthdr : IPPROTO_IPV6, AF_INET6);
+ nexthdr, AF_INET6);
if (x == NULL)
goto drop;
spin_lock(&x->lock);
@@ -70,10 +68,10 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
xfrm_vec[xfrm_nr++] = x;
- if (x->mode->input(x, skb))
+ if (x->outer_mode->input(x, skb))
goto drop;
- if (x->props.mode == XFRM_MODE_TUNNEL) { /* XXX */
+ if (x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL) {
decaps = 1;
break;
}
@@ -99,7 +97,6 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
memcpy(skb->sp->xvec + skb->sp->len, xfrm_vec,
xfrm_nr * sizeof(xfrm_vec[0]));
skb->sp->len += xfrm_nr;
- skb->ip_summed = CHECKSUM_NONE;
nf_reset(skb);
@@ -135,7 +132,8 @@ EXPORT_SYMBOL(xfrm6_rcv_spi);
int xfrm6_rcv(struct sk_buff *skb)
{
- return xfrm6_rcv_spi(skb, 0);
+ return xfrm6_rcv_spi(skb, skb_network_header(skb)[IP6CB(skb)->nhoff],
+ 0);
}
EXPORT_SYMBOL(xfrm6_rcv);
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index 13bb1e856764..2bfb4f05c14c 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -79,6 +79,7 @@ static struct xfrm_mode xfrm6_beet_mode = {
.output = xfrm6_beet_output,
.owner = THIS_MODULE,
.encap = XFRM_MODE_BEET,
+ .flags = XFRM_MODE_FLAG_TUNNEL,
};
static int __init xfrm6_beet_init(void)
diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c
index 957ae36b6695..a7bc8c62317a 100644
--- a/net/ipv6/xfrm6_mode_ro.c
+++ b/net/ipv6/xfrm6_mode_ro.c
@@ -58,16 +58,7 @@ static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb)
return 0;
}
-/*
- * Do nothing about routing optimization header unlike IPsec.
- */
-static int xfrm6_ro_input(struct xfrm_state *x, struct sk_buff *skb)
-{
- return 0;
-}
-
static struct xfrm_mode xfrm6_ro_mode = {
- .input = xfrm6_ro_input,
.output = xfrm6_ro_output,
.owner = THIS_MODULE,
.encap = XFRM_MODE_ROUTEOPTIMIZATION,
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index ea2283879112..fd84e2217274 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -118,6 +118,7 @@ static struct xfrm_mode xfrm6_tunnel_mode = {
.output = xfrm6_tunnel_output,
.owner = THIS_MODULE,
.encap = XFRM_MODE_TUNNEL,
+ .flags = XFRM_MODE_FLAG_TUNNEL,
};
static int __init xfrm6_tunnel_init(void)
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index a5a32c17249d..656976760ad4 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -50,7 +50,7 @@ static inline int xfrm6_output_one(struct sk_buff *skb)
struct ipv6hdr *iph;
int err;
- if (x->props.mode == XFRM_MODE_TUNNEL) {
+ if (x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL) {
err = xfrm6_tunnel_check_size(skb);
if (err)
goto error_nolock;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 15aa4c58c315..82e27b80d07d 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -178,8 +178,7 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
__xfrm6_bundle_len_inc(&header_len, &nfheader_len, xfrm[i]);
trailer_len += xfrm[i]->props.trailer_len;
- if (xfrm[i]->props.mode == XFRM_MODE_TUNNEL ||
- xfrm[i]->props.mode == XFRM_MODE_ROUTEOPTIMIZATION) {
+ if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) {
unsigned short encap_family = xfrm[i]->props.family;
switch(encap_family) {
case AF_INET:
@@ -215,7 +214,6 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
i = 0;
for (; dst_prev != &rt->u.dst; dst_prev = dst_prev->child) {
struct xfrm_dst *x = (struct xfrm_dst*)dst_prev;
- struct xfrm_state_afinfo *afinfo;
dst_prev->xfrm = xfrm[i++];
dst_prev->dev = rt->u.dst.dev;
@@ -232,18 +230,7 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
/* Copy neighbour for reachability confirmation */
dst_prev->neighbour = neigh_clone(rt->u.dst.neighbour);
dst_prev->input = rt->u.dst.input;
- /* XXX: When IPv4 is implemented as module and can be unloaded,
- * we should manage reference to xfrm4_output in afinfo->output.
- * Miyazawa
- */
- afinfo = xfrm_state_get_afinfo(dst_prev->xfrm->props.family);
- if (!afinfo) {
- dst = *dst_p;
- goto error;
- }
-
- dst_prev->output = afinfo->output;
- xfrm_state_put_afinfo(afinfo);
+ dst_prev->output = dst_prev->xfrm->outer_mode->afinfo->output;
/* Sheit... I remember I did this right. Apparently,
* it was magically lost, so this code needs audit */
x->u.rt6.rt6i_flags = rt0->rt6i_flags&(RTCF_BROADCAST|RTCF_MULTICAST|RTCF_LOCAL);
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index cdadb4847469..b392bee396f1 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -93,7 +93,8 @@ __xfrm6_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n)
/* Rule 4: select IPsec tunnel */
for (i = 0; i < n; i++) {
if (src[i] &&
- src[i]->props.mode == XFRM_MODE_TUNNEL) {
+ (src[i]->props.mode == XFRM_MODE_TUNNEL ||
+ src[i]->props.mode == XFRM_MODE_BEET)) {
dst[j++] = src[i];
src[i] = NULL;
}
@@ -146,7 +147,8 @@ __xfrm6_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n)
/* Rule 3: select IPsec tunnel */
for (i = 0; i < n; i++) {
if (src[i] &&
- src[i]->mode == XFRM_MODE_TUNNEL) {
+ (src[i]->mode == XFRM_MODE_TUNNEL ||
+ src[i]->mode == XFRM_MODE_BEET)) {
dst[j++] = src[i];
src[i] = NULL;
}
@@ -168,6 +170,7 @@ __xfrm6_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n)
static struct xfrm_state_afinfo xfrm6_state_afinfo = {
.family = AF_INET6,
+ .owner = THIS_MODULE,
.init_tempsel = __xfrm6_init_tempsel,
.tmpl_sort = __xfrm6_tmpl_sort,
.state_sort = __xfrm6_state_sort,
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 3f8a3abde67e..fae90ff31087 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -248,7 +248,7 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
- return 0;
+ return skb_network_header(skb)[IP6CB(skb)->nhoff];
}
static int xfrm6_tunnel_rcv(struct sk_buff *skb)
@@ -257,7 +257,7 @@ static int xfrm6_tunnel_rcv(struct sk_buff *skb)
__be32 spi;
spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
- return xfrm6_rcv_spi(skb, spi) > 0 ? : 0;
+ return xfrm6_rcv_spi(skb, IPPROTO_IPV6, spi) > 0 ? : 0;
}
static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.