static DEFINE_SPINLOCK(xfrm_state_lock);
-/* Hash table to find appropriate SA towards given target (endpoint
- * of tunnel or destination of transport mode) allowed by selector.
- *
- * Main use is finding SA after policy selected tunnel or transport mode.
- * Also, it can be used by ah/esp icmp error handler to find offending SA.
- */
-static LIST_HEAD(xfrm_state_all);
-static struct hlist_head *xfrm_state_bydst __read_mostly;
-static struct hlist_head *xfrm_state_bysrc __read_mostly;
-static struct hlist_head *xfrm_state_byspi __read_mostly;
static unsigned int xfrm_state_hmask __read_mostly;
static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
static unsigned int xfrm_state_num;
nhashmask = (nsize / sizeof(struct hlist_head)) - 1U;
for (i = xfrm_state_hmask; i >= 0; i--)
- xfrm_hash_transfer(xfrm_state_bydst+i, ndst, nsrc, nspi,
+ xfrm_hash_transfer(init_net.xfrm.state_bydst+i, ndst, nsrc, nspi,
nhashmask);
- odst = xfrm_state_bydst;
- osrc = xfrm_state_bysrc;
- ospi = xfrm_state_byspi;
+ odst = init_net.xfrm.state_bydst;
+ osrc = init_net.xfrm.state_bysrc;
+ ospi = init_net.xfrm.state_byspi;
ohashmask = xfrm_state_hmask;
- xfrm_state_bydst = ndst;
- xfrm_state_bysrc = nsrc;
- xfrm_state_byspi = nspi;
+ init_net.xfrm.state_bydst = ndst;
+ init_net.xfrm.state_bysrc = nsrc;
+ init_net.xfrm.state_byspi = nspi;
xfrm_state_hmask = nhashmask;
spin_unlock_bh(&xfrm_state_lock);
struct hlist_head gc_list;
spin_lock_bh(&xfrm_state_gc_lock);
- gc_list.first = xfrm_state_gc_list.first;
- INIT_HLIST_HEAD(&xfrm_state_gc_list);
+ hlist_move_list(&xfrm_state_gc_list, &gc_list);
spin_unlock_bh(&xfrm_state_gc_lock);
- hlist_for_each_entry_safe(x, entry, tmp, &gc_list, bydst)
+ hlist_for_each_entry_safe(x, entry, tmp, &gc_list, gclist)
xfrm_state_gc_destroy(x);
wake_up(&km_waitq);
static void xfrm_replay_timer_handler(unsigned long data);
-struct xfrm_state *xfrm_state_alloc(void)
+struct xfrm_state *xfrm_state_alloc(struct net *net)
{
struct xfrm_state *x;
x = kzalloc(sizeof(struct xfrm_state), GFP_ATOMIC);
if (x) {
+ write_pnet(&x->xs_net, net);
atomic_set(&x->refcnt, 1);
atomic_set(&x->tunnel_users, 0);
- INIT_LIST_HEAD(&x->all);
+ INIT_LIST_HEAD(&x->km.all);
INIT_HLIST_NODE(&x->bydst);
INIT_HLIST_NODE(&x->bysrc);
INIT_HLIST_NODE(&x->byspi);
{
WARN_ON(x->km.state != XFRM_STATE_DEAD);
- spin_lock_bh(&xfrm_state_lock);
- list_del(&x->all);
- spin_unlock_bh(&xfrm_state_lock);
-
spin_lock_bh(&xfrm_state_gc_lock);
- hlist_add_head(&x->bydst, &xfrm_state_gc_list);
+ hlist_add_head(&x->gclist, &xfrm_state_gc_list);
spin_unlock_bh(&xfrm_state_gc_lock);
schedule_work(&xfrm_state_gc_work);
}
if (x->km.state != XFRM_STATE_DEAD) {
x->km.state = XFRM_STATE_DEAD;
spin_lock(&xfrm_state_lock);
+ list_del(&x->km.all);
hlist_del(&x->bydst);
hlist_del(&x->bysrc);
if (x->id.spi)
struct hlist_node *entry;
struct xfrm_state *x;
- hlist_for_each_entry(x, entry, xfrm_state_bydst+i, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+i, bydst) {
if (xfrm_id_proto_match(x->id.proto, proto) &&
(err = security_xfrm_state_delete(x)) != 0) {
xfrm_audit_state_delete(x, 0,
struct hlist_node *entry;
struct xfrm_state *x;
restart:
- hlist_for_each_entry(x, entry, xfrm_state_bydst+i, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+i, bydst) {
if (!xfrm_state_kern(x) &&
xfrm_id_proto_match(x->id.proto, proto)) {
xfrm_state_hold(x);
struct xfrm_state *x;
struct hlist_node *entry;
- hlist_for_each_entry(x, entry, xfrm_state_byspi+h, byspi) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_byspi+h, byspi) {
if (x->props.family != family ||
x->id.spi != spi ||
x->id.proto != proto)
struct xfrm_state *x;
struct hlist_node *entry;
- hlist_for_each_entry(x, entry, xfrm_state_bysrc+h, bysrc) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bysrc+h, bysrc) {
if (x->props.family != family ||
x->id.proto != proto)
continue;
spin_lock_bh(&xfrm_state_lock);
h = xfrm_dst_hash(daddr, saddr, tmpl->reqid, family);
- hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+h, bydst) {
if (x->props.family == family &&
x->props.reqid == tmpl->reqid &&
!(x->props.flags & XFRM_STATE_WILDRECV) &&
error = -EEXIST;
goto out;
}
- x = xfrm_state_alloc();
+ x = xfrm_state_alloc(&init_net);
if (x == NULL) {
error = -ENOMEM;
goto out;
if (km_query(x, tmpl, pol) == 0) {
x->km.state = XFRM_STATE_ACQ;
- list_add_tail(&x->all, &xfrm_state_all);
- hlist_add_head(&x->bydst, xfrm_state_bydst+h);
+ list_add(&x->km.all, &init_net.xfrm.state_all);
+ hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h);
h = xfrm_src_hash(daddr, saddr, family);
- hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
+ hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
if (x->id.spi) {
h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto, family);
- hlist_add_head(&x->byspi, xfrm_state_byspi+h);
+ hlist_add_head(&x->byspi, init_net.xfrm.state_byspi+h);
}
x->lft.hard_add_expires_seconds = sysctl_xfrm_acq_expires;
x->timer.expires = jiffies + sysctl_xfrm_acq_expires*HZ;
spin_lock(&xfrm_state_lock);
h = xfrm_dst_hash(daddr, saddr, reqid, family);
- hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+h, bydst) {
if (x->props.family == family &&
x->props.reqid == reqid &&
!(x->props.flags & XFRM_STATE_WILDRECV) &&
x->genid = ++xfrm_state_genid;
- list_add_tail(&x->all, &xfrm_state_all);
+ list_add(&x->km.all, &init_net.xfrm.state_all);
h = xfrm_dst_hash(&x->id.daddr, &x->props.saddr,
x->props.reqid, x->props.family);
- hlist_add_head(&x->bydst, xfrm_state_bydst+h);
+ hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h);
h = xfrm_src_hash(&x->id.daddr, &x->props.saddr, x->props.family);
- hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
+ hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
if (x->id.spi) {
h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto,
x->props.family);
- hlist_add_head(&x->byspi, xfrm_state_byspi+h);
+ hlist_add_head(&x->byspi, init_net.xfrm.state_byspi+h);
}
mod_timer(&x->timer, jiffies + HZ);
unsigned int h;
h = xfrm_dst_hash(&xnew->id.daddr, &xnew->props.saddr, reqid, family);
- hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+h, bydst) {
if (x->props.family == family &&
x->props.reqid == reqid &&
!xfrm_addr_cmp(&x->id.daddr, &xnew->id.daddr, family) &&
struct hlist_node *entry;
struct xfrm_state *x;
- hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+h, bydst) {
if (x->props.reqid != reqid ||
x->props.mode != mode ||
x->props.family != family ||
if (!create)
return NULL;
- x = xfrm_state_alloc();
+ x = xfrm_state_alloc(&init_net);
if (likely(x)) {
switch (family) {
case AF_INET:
xfrm_state_hold(x);
x->timer.expires = jiffies + sysctl_xfrm_acq_expires*HZ;
add_timer(&x->timer);
- list_add_tail(&x->all, &xfrm_state_all);
- hlist_add_head(&x->bydst, xfrm_state_bydst+h);
+ list_add(&x->km.all, &init_net.xfrm.state_all);
+ hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h);
h = xfrm_src_hash(daddr, saddr, family);
- hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
+ hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
xfrm_state_num++;
static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp)
{
int err = -ENOMEM;
- struct xfrm_state *x = xfrm_state_alloc();
+ struct xfrm_state *x = xfrm_state_alloc(&init_net);
if (!x)
goto error;
if (m->reqid) {
h = xfrm_dst_hash(&m->old_daddr, &m->old_saddr,
m->reqid, m->old_family);
- hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+h, bydst) {
if (x->props.mode != m->mode ||
x->id.proto != m->proto)
continue;
} else {
h = xfrm_src_hash(&m->old_daddr, &m->old_saddr,
m->old_family);
- hlist_for_each_entry(x, entry, xfrm_state_bysrc+h, bysrc) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bysrc+h, bysrc) {
if (x->props.mode != m->mode ||
x->id.proto != m->proto)
continue;
struct hlist_node *entry;
struct xfrm_state *x;
- hlist_for_each_entry(x, entry, xfrm_state_bydst+i, bydst) {
+ hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+i, bydst) {
if (x->km.seq == seq &&
x->km.state == XFRM_STATE_ACQ) {
xfrm_state_hold(x);
if (x->id.spi) {
spin_lock_bh(&xfrm_state_lock);
h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto, x->props.family);
- hlist_add_head(&x->byspi, xfrm_state_byspi+h);
+ hlist_add_head(&x->byspi, init_net.xfrm.state_byspi+h);
spin_unlock_bh(&xfrm_state_lock);
err = 0;
int (*func)(struct xfrm_state *, int, void*),
void *data)
{
- struct xfrm_state *old, *x, *last = NULL;
+ struct xfrm_state *state;
+ struct xfrm_state_walk *x;
int err = 0;
- if (walk->state == NULL && walk->count != 0)
+ if (walk->seq != 0 && list_empty(&walk->all))
return 0;
- old = x = walk->state;
- walk->state = NULL;
spin_lock_bh(&xfrm_state_lock);
- if (x == NULL)
- x = list_first_entry(&xfrm_state_all, struct xfrm_state, all);
- list_for_each_entry_from(x, &xfrm_state_all, all) {
- if (x->km.state == XFRM_STATE_DEAD)
+ if (list_empty(&walk->all))
+ x = list_first_entry(&init_net.xfrm.state_all, struct xfrm_state_walk, all);
+ else
+ x = list_entry(&walk->all, struct xfrm_state_walk, all);
+ list_for_each_entry_from(x, &init_net.xfrm.state_all, all) {
+ if (x->state == XFRM_STATE_DEAD)
continue;
- if (!xfrm_id_proto_match(x->id.proto, walk->proto))
+ state = container_of(x, struct xfrm_state, km);
+ if (!xfrm_id_proto_match(state->id.proto, walk->proto))
continue;
- if (last) {
- err = func(last, walk->count, data);
- if (err) {
- xfrm_state_hold(last);
- walk->state = last;
- goto out;
- }
+ err = func(state, walk->seq, data);
+ if (err) {
+ list_move_tail(&walk->all, &x->all);
+ goto out;
}
- last = x;
- walk->count++;
+ walk->seq++;
}
- if (walk->count == 0) {
+ if (walk->seq == 0) {
err = -ENOENT;
goto out;
}
- if (last)
- err = func(last, 0, data);
+ list_del_init(&walk->all);
out:
spin_unlock_bh(&xfrm_state_lock);
- if (old != NULL)
- xfrm_state_put(old);
return err;
}
EXPORT_SYMBOL(xfrm_state_walk);
+void xfrm_state_walk_init(struct xfrm_state_walk *walk, u8 proto)
+{
+ INIT_LIST_HEAD(&walk->all);
+ walk->proto = proto;
+ walk->state = XFRM_STATE_DEAD;
+ walk->seq = 0;
+}
+EXPORT_SYMBOL(xfrm_state_walk_init);
+
+void xfrm_state_walk_done(struct xfrm_state_walk *walk)
+{
+ if (list_empty(&walk->all))
+ return;
+
+ spin_lock_bh(&xfrm_state_lock);
+ list_del(&walk->all);
+ spin_lock_bh(&xfrm_state_lock);
+}
+EXPORT_SYMBOL(xfrm_state_walk_done);
+
void xfrm_replay_notify(struct xfrm_state *x, int event)
{
#ifdef CONFIG_XFRM_MIGRATE
int km_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
- struct xfrm_migrate *m, int num_migrate)
+ struct xfrm_migrate *m, int num_migrate,
+ struct xfrm_kmaddress *k)
{
int err = -EINVAL;
int ret;
read_lock(&xfrm_km_lock);
list_for_each_entry(km, &xfrm_km_list, list) {
if (km->migrate) {
- ret = km->migrate(sel, dir, type, m, num_migrate);
+ ret = km->migrate(sel, dir, type, m, num_migrate, k);
if (!ret)
err = ret;
}
EXPORT_SYMBOL(xfrm_init_state);
-void __init xfrm_state_init(void)
+int __net_init xfrm_state_init(struct net *net)
{
unsigned int sz;
+ INIT_LIST_HEAD(&net->xfrm.state_all);
+
sz = sizeof(struct hlist_head) * 8;
- xfrm_state_bydst = xfrm_hash_alloc(sz);
- xfrm_state_bysrc = xfrm_hash_alloc(sz);
- xfrm_state_byspi = xfrm_hash_alloc(sz);
- if (!xfrm_state_bydst || !xfrm_state_bysrc || !xfrm_state_byspi)
- panic("XFRM: Cannot allocate bydst/bysrc/byspi hashes.");
+ net->xfrm.state_bydst = xfrm_hash_alloc(sz);
+ if (!net->xfrm.state_bydst)
+ goto out_bydst;
+ net->xfrm.state_bysrc = xfrm_hash_alloc(sz);
+ if (!net->xfrm.state_bysrc)
+ goto out_bysrc;
+ net->xfrm.state_byspi = xfrm_hash_alloc(sz);
+ if (!net->xfrm.state_byspi)
+ goto out_byspi;
xfrm_state_hmask = ((sz / sizeof(struct hlist_head)) - 1);
INIT_WORK(&xfrm_state_gc_work, xfrm_state_gc_task);
+ return 0;
+
+out_byspi:
+ xfrm_hash_free(net->xfrm.state_bysrc, sz);
+out_bysrc:
+ xfrm_hash_free(net->xfrm.state_bydst, sz);
+out_bydst:
+ return -ENOMEM;
+}
+
+void xfrm_state_fini(struct net *net)
+{
+ unsigned int sz;
+
+ WARN_ON(!list_empty(&net->xfrm.state_all));
+
+ sz = (xfrm_state_hmask + 1) * sizeof(struct hlist_head);
+ WARN_ON(!hlist_empty(net->xfrm.state_byspi));
+ xfrm_hash_free(net->xfrm.state_byspi, sz);
+ WARN_ON(!hlist_empty(net->xfrm.state_bysrc));
+ xfrm_hash_free(net->xfrm.state_bysrc, sz);
+ WARN_ON(!hlist_empty(net->xfrm.state_bydst));
+ xfrm_hash_free(net->xfrm.state_bydst, sz);
}
#ifdef CONFIG_AUDITSYSCALL
switch(x->props.family) {
case AF_INET:
- audit_log_format(audit_buf,
- " src=" NIPQUAD_FMT " dst=" NIPQUAD_FMT,
- NIPQUAD(x->props.saddr.a4),
- NIPQUAD(x->id.daddr.a4));
+ audit_log_format(audit_buf, " src=%pI4 dst=%pI4",
+ &x->props.saddr.a4, &x->id.daddr.a4);
break;
case AF_INET6:
- audit_log_format(audit_buf,
- " src=" NIP6_FMT " dst=" NIP6_FMT,
- NIP6(*(struct in6_addr *)x->props.saddr.a6),
- NIP6(*(struct in6_addr *)x->id.daddr.a6));
+ audit_log_format(audit_buf, " src=%pI6 dst=%pI6",
+ x->props.saddr.a6, x->id.daddr.a6);
break;
}
switch (family) {
case AF_INET:
iph4 = ip_hdr(skb);
- audit_log_format(audit_buf,
- " src=" NIPQUAD_FMT " dst=" NIPQUAD_FMT,
- NIPQUAD(iph4->saddr),
- NIPQUAD(iph4->daddr));
+ audit_log_format(audit_buf, " src=%pI4 dst=%pI4",
+ &iph4->saddr, &iph4->daddr);
break;
case AF_INET6:
iph6 = ipv6_hdr(skb);
audit_log_format(audit_buf,
- " src=" NIP6_FMT " dst=" NIP6_FMT
- " flowlbl=0x%x%02x%02x",
- NIP6(iph6->saddr),
- NIP6(iph6->daddr),
+ " src=%pI6 dst=%pI6 flowlbl=0x%x%02x%02x",
+ &iph6->saddr,&iph6->daddr,
iph6->flow_lbl[0] & 0x0f,
iph6->flow_lbl[1],
iph6->flow_lbl[2]);
projects / deliverable / linux.git / blobdiff