summaryrefslogtreecommitdiffstats
path: root/net/xfrm
diff options
context:
space:
mode:
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_output.c12
-rw-r--r--net/xfrm/xfrm_policy.c118
-rw-r--r--net/xfrm/xfrm_state.c84
-rw-r--r--net/xfrm/xfrm_user.c61
4 files changed, 166 insertions, 109 deletions
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index ac25b4c0e982..dc50f1e71f76 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -27,10 +27,14 @@ static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
- skb_headroom(skb);
int ntail = dst->dev->needed_tailroom - skb_tailroom(skb);
- if (nhead > 0 || ntail > 0)
- return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC);
-
- return 0;
+ if (nhead <= 0) {
+ if (ntail <= 0)
+ return 0;
+ nhead = 0;
+ } else if (ntail < 0)
+ ntail = 0;
+
+ return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC);
}
static int xfrm_output_one(struct sk_buff *skb, int err)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index b7754b1b73a4..832b47c1de80 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -34,7 +34,7 @@
#include "xfrm_hash.h"
-int sysctl_xfrm_larval_drop __read_mostly;
+int sysctl_xfrm_larval_drop __read_mostly = 1;
#ifdef CONFIG_XFRM_STATISTICS
DEFINE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics) __read_mostly;
@@ -46,7 +46,7 @@ EXPORT_SYMBOL(xfrm_cfg_mutex);
static DEFINE_RWLOCK(xfrm_policy_lock);
-static struct list_head xfrm_policy_bytype[XFRM_POLICY_TYPE_MAX];
+static struct list_head xfrm_policy_all;
unsigned int xfrm_policy_count[XFRM_POLICY_MAX*2];
EXPORT_SYMBOL(xfrm_policy_count);
@@ -164,7 +164,7 @@ static void xfrm_policy_timer(unsigned long data)
read_lock(&xp->lock);
- if (xp->dead)
+ if (xp->walk.dead)
goto out;
dir = xfrm_policy_id2dir(xp->index);
@@ -236,7 +236,7 @@ struct xfrm_policy *xfrm_policy_alloc(gfp_t gfp)
policy = kzalloc(sizeof(struct xfrm_policy), gfp);
if (policy) {
- INIT_LIST_HEAD(&policy->bytype);
+ INIT_LIST_HEAD(&policy->walk.all);
INIT_HLIST_NODE(&policy->bydst);
INIT_HLIST_NODE(&policy->byidx);
rwlock_init(&policy->lock);
@@ -252,17 +252,13 @@ EXPORT_SYMBOL(xfrm_policy_alloc);
void xfrm_policy_destroy(struct xfrm_policy *policy)
{
- BUG_ON(!policy->dead);
+ BUG_ON(!policy->walk.dead);
BUG_ON(policy->bundles);
if (del_timer(&policy->timer))
BUG();
- write_lock_bh(&xfrm_policy_lock);
- list_del(&policy->bytype);
- write_unlock_bh(&xfrm_policy_lock);
-
security_xfrm_policy_free(policy->security);
kfree(policy);
}
@@ -310,8 +306,8 @@ static void xfrm_policy_kill(struct xfrm_policy *policy)
int dead;
write_lock_bh(&policy->lock);
- dead = policy->dead;
- policy->dead = 1;
+ dead = policy->walk.dead;
+ policy->walk.dead = 1;
write_unlock_bh(&policy->lock);
if (unlikely(dead)) {
@@ -609,6 +605,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
if (delpol) {
hlist_del(&delpol->bydst);
hlist_del(&delpol->byidx);
+ list_del(&delpol->walk.all);
xfrm_policy_count[dir]--;
}
policy->index = delpol ? delpol->index : xfrm_gen_index(policy->type, dir);
@@ -617,7 +614,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
policy->curlft.use_time = 0;
if (!mod_timer(&policy->timer, jiffies + HZ))
xfrm_pol_hold(policy);
- list_add_tail(&policy->bytype, &xfrm_policy_bytype[policy->type]);
+ list_add(&policy->walk.all, &xfrm_policy_all);
write_unlock_bh(&xfrm_policy_lock);
if (delpol)
@@ -684,6 +681,7 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(u8 type, int dir,
}
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
+ list_del(&pol->walk.all);
xfrm_policy_count[dir]--;
}
ret = pol;
@@ -727,6 +725,7 @@ struct xfrm_policy *xfrm_policy_byid(u8 type, int dir, u32 id, int delete,
}
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
+ list_del(&pol->walk.all);
xfrm_policy_count[dir]--;
}
ret = pol;
@@ -840,6 +839,7 @@ int xfrm_policy_flush(u8 type, struct xfrm_audit *audit_info)
continue;
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
+ list_del(&pol->walk.all);
write_unlock_bh(&xfrm_policy_lock);
xfrm_audit_policy_delete(pol, 1,
@@ -867,60 +867,68 @@ int xfrm_policy_walk(struct xfrm_policy_walk *walk,
int (*func)(struct xfrm_policy *, int, int, void*),
void *data)
{
- struct xfrm_policy *old, *pol, *last = NULL;
+ struct xfrm_policy *pol;
+ struct xfrm_policy_walk_entry *x;
int error = 0;
if (walk->type >= XFRM_POLICY_TYPE_MAX &&
walk->type != XFRM_POLICY_TYPE_ANY)
return -EINVAL;
- if (walk->policy == NULL && walk->count != 0)
+ if (list_empty(&walk->walk.all) && walk->seq != 0)
return 0;
- old = pol = walk->policy;
- walk->policy = NULL;
- read_lock_bh(&xfrm_policy_lock);
-
- for (; walk->cur_type < XFRM_POLICY_TYPE_MAX; walk->cur_type++) {
- if (walk->type != walk->cur_type &&
- walk->type != XFRM_POLICY_TYPE_ANY)
+ write_lock_bh(&xfrm_policy_lock);
+ if (list_empty(&walk->walk.all))
+ x = list_first_entry(&xfrm_policy_all, struct xfrm_policy_walk_entry, all);
+ else
+ x = list_entry(&walk->walk.all, struct xfrm_policy_walk_entry, all);
+ list_for_each_entry_from(x, &xfrm_policy_all, all) {
+ if (x->dead)
continue;
-
- if (pol == NULL) {
- pol = list_first_entry(&xfrm_policy_bytype[walk->cur_type],
- struct xfrm_policy, bytype);
- }
- list_for_each_entry_from(pol, &xfrm_policy_bytype[walk->cur_type], bytype) {
- if (pol->dead)
- continue;
- if (last) {
- error = func(last, xfrm_policy_id2dir(last->index),
- walk->count, data);
- if (error) {
- xfrm_pol_hold(last);
- walk->policy = last;
- goto out;
- }
- }
- last = pol;
- walk->count++;
+ pol = container_of(x, struct xfrm_policy, walk);
+ if (walk->type != XFRM_POLICY_TYPE_ANY &&
+ walk->type != pol->type)
+ continue;
+ error = func(pol, xfrm_policy_id2dir(pol->index),
+ walk->seq, data);
+ if (error) {
+ list_move_tail(&walk->walk.all, &x->all);
+ goto out;
}
- pol = NULL;
+ walk->seq++;
}
- if (walk->count == 0) {
+ if (walk->seq == 0) {
error = -ENOENT;
goto out;
}
- if (last)
- error = func(last, xfrm_policy_id2dir(last->index), 0, data);
+ list_del_init(&walk->walk.all);
out:
- read_unlock_bh(&xfrm_policy_lock);
- if (old != NULL)
- xfrm_pol_put(old);
+ write_unlock_bh(&xfrm_policy_lock);
return error;
}
EXPORT_SYMBOL(xfrm_policy_walk);
+void xfrm_policy_walk_init(struct xfrm_policy_walk *walk, u8 type)
+{
+ INIT_LIST_HEAD(&walk->walk.all);
+ walk->walk.dead = 1;
+ walk->type = type;
+ walk->seq = 0;
+}
+EXPORT_SYMBOL(xfrm_policy_walk_init);
+
+void xfrm_policy_walk_done(struct xfrm_policy_walk *walk)
+{
+ if (list_empty(&walk->walk.all))
+ return;
+
+ write_lock_bh(&xfrm_policy_lock);
+ list_del(&walk->walk.all);
+ write_unlock_bh(&xfrm_policy_lock);
+}
+EXPORT_SYMBOL(xfrm_policy_walk_done);
+
/*
* Find policy to apply to this flow.
*
@@ -1077,7 +1085,7 @@ static void __xfrm_policy_link(struct xfrm_policy *pol, int dir)
struct hlist_head *chain = policy_hash_bysel(&pol->selector,
pol->family, dir);
- list_add_tail(&pol->bytype, &xfrm_policy_bytype[pol->type]);
+ list_add(&pol->walk.all, &xfrm_policy_all);
hlist_add_head(&pol->bydst, chain);
hlist_add_head(&pol->byidx, xfrm_policy_byidx+idx_hash(pol->index));
xfrm_policy_count[dir]++;
@@ -1095,6 +1103,7 @@ static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol,
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
+ list_del(&pol->walk.all);
xfrm_policy_count[dir]--;
return pol;
@@ -1720,7 +1729,7 @@ restart:
for (pi = 0; pi < npols; pi++) {
read_lock_bh(&pols[pi]->lock);
- pol_dead |= pols[pi]->dead;
+ pol_dead |= pols[pi]->walk.dead;
read_unlock_bh(&pols[pi]->lock);
}
@@ -2415,9 +2424,7 @@ static void __init xfrm_policy_init(void)
panic("XFRM: failed to allocate bydst hash\n");
}
- for (dir = 0; dir < XFRM_POLICY_TYPE_MAX; dir++)
- INIT_LIST_HEAD(&xfrm_policy_bytype[dir]);
-
+ INIT_LIST_HEAD(&xfrm_policy_all);
INIT_WORK(&xfrm_policy_gc_work, xfrm_policy_gc_task);
register_netdevice_notifier(&xfrm_dev_notifier);
}
@@ -2601,7 +2608,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol,
int i, j, n = 0;
write_lock_bh(&pol->lock);
- if (unlikely(pol->dead)) {
+ if (unlikely(pol->walk.dead)) {
/* target policy has been deleted */
write_unlock_bh(&pol->lock);
return -ENOENT;
@@ -2672,7 +2679,8 @@ static int xfrm_migrate_check(struct xfrm_migrate *m, int num_migrate)
}
int xfrm_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 i, err, nx_cur = 0, nx_new = 0;
struct xfrm_policy *pol = NULL;
@@ -2716,7 +2724,7 @@ int xfrm_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
}
/* Stage 5 - announce */
- km_migrate(sel, dir, type, m, num_migrate);
+ km_migrate(sel, dir, type, m, num_migrate, k);
xfrm_pol_put(pol);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 0a8f09c3144c..508337f97249 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -408,11 +408,10 @@ static void xfrm_state_gc_task(struct work_struct *data)
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);
@@ -514,7 +513,7 @@ struct xfrm_state *xfrm_state_alloc(void)
if (x) {
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);
@@ -540,12 +539,8 @@ void __xfrm_state_destroy(struct xfrm_state *x)
{
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);
}
@@ -558,6 +553,7 @@ int __xfrm_state_delete(struct xfrm_state *x)
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)
@@ -858,7 +854,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
if (km_query(x, tmpl, pol) == 0) {
x->km.state = XFRM_STATE_ACQ;
- list_add_tail(&x->all, &xfrm_state_all);
+ list_add(&x->km.all, &xfrm_state_all);
hlist_add_head(&x->bydst, xfrm_state_bydst+h);
h = xfrm_src_hash(daddr, saddr, family);
hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
@@ -927,7 +923,7 @@ static void __xfrm_state_insert(struct xfrm_state *x)
x->genid = ++xfrm_state_genid;
- list_add_tail(&x->all, &xfrm_state_all);
+ list_add(&x->km.all, &xfrm_state_all);
h = xfrm_dst_hash(&x->id.daddr, &x->props.saddr,
x->props.reqid, x->props.family);
@@ -1056,7 +1052,7 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
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);
+ list_add(&x->km.all, &xfrm_state_all);
hlist_add_head(&x->bydst, xfrm_state_bydst+h);
h = xfrm_src_hash(daddr, saddr, family);
hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
@@ -1553,47 +1549,62 @@ int xfrm_state_walk(struct xfrm_state_walk *walk,
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);
+ if (list_empty(&walk->all))
+ x = list_first_entry(&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, &xfrm_state_all, all) {
- if (x->km.state == XFRM_STATE_DEAD)
+ 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)
{
@@ -1803,7 +1814,8 @@ EXPORT_SYMBOL(km_policy_expired);
#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;
@@ -1812,7 +1824,7 @@ int km_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
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;
}
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 04c41504f84c..4a8a1abb59ee 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1102,7 +1102,7 @@ static struct xfrm_policy *xfrm_policy_construct(struct xfrm_userpolicy_info *p,
return xp;
error:
*errp = err;
- xp->dead = 1;
+ xp->walk.dead = 1;
xfrm_policy_destroy(xp);
return NULL;
}
@@ -1595,7 +1595,7 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
return -ENOENT;
read_lock(&xp->lock);
- if (xp->dead) {
+ if (xp->walk.dead) {
read_unlock(&xp->lock);
goto out;
}
@@ -1710,12 +1710,23 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
#ifdef CONFIG_XFRM_MIGRATE
static int copy_from_user_migrate(struct xfrm_migrate *ma,
+ struct xfrm_kmaddress *k,
struct nlattr **attrs, int *num)
{
struct nlattr *rt = attrs[XFRMA_MIGRATE];
struct xfrm_user_migrate *um;
int i, num_migrate;
+ if (k != NULL) {
+ struct xfrm_user_kmaddress *uk;
+
+ uk = nla_data(attrs[XFRMA_KMADDRESS]);
+ memcpy(&k->local, &uk->local, sizeof(k->local));
+ memcpy(&k->remote, &uk->remote, sizeof(k->remote));
+ k->family = uk->family;
+ k->reserved = uk->reserved;
+ }
+
um = nla_data(rt);
num_migrate = nla_len(rt) / sizeof(*um);
@@ -1745,6 +1756,7 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
{
struct xfrm_userpolicy_id *pi = nlmsg_data(nlh);
struct xfrm_migrate m[XFRM_MAX_DEPTH];
+ struct xfrm_kmaddress km, *kmp;
u8 type;
int err;
int n = 0;
@@ -1752,19 +1764,20 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
if (attrs[XFRMA_MIGRATE] == NULL)
return -EINVAL;
+ kmp = attrs[XFRMA_KMADDRESS] ? &km : NULL;
+
err = copy_from_user_policy_type(&type, attrs);
if (err)
return err;
- err = copy_from_user_migrate((struct xfrm_migrate *)m,
- attrs, &n);
+ err = copy_from_user_migrate((struct xfrm_migrate *)m, kmp, attrs, &n);
if (err)
return err;
if (!n)
return 0;
- xfrm_migrate(&pi->sel, pi->dir, type, m, n);
+ xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp);
return 0;
}
@@ -1795,16 +1808,30 @@ static int copy_to_user_migrate(struct xfrm_migrate *m, struct sk_buff *skb)
return nla_put(skb, XFRMA_MIGRATE, sizeof(um), &um);
}
-static inline size_t xfrm_migrate_msgsize(int num_migrate)
+static int copy_to_user_kmaddress(struct xfrm_kmaddress *k, struct sk_buff *skb)
+{
+ struct xfrm_user_kmaddress uk;
+
+ memset(&uk, 0, sizeof(uk));
+ uk.family = k->family;
+ uk.reserved = k->reserved;
+ memcpy(&uk.local, &k->local, sizeof(uk.local));
+ memcpy(&uk.remote, &k->local, sizeof(uk.remote));
+
+ return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk);
+}
+
+static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma)
{
return NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))
- + nla_total_size(sizeof(struct xfrm_user_migrate) * num_migrate)
- + userpolicy_type_attrsize();
+ + (with_kma ? nla_total_size(sizeof(struct xfrm_kmaddress)) : 0)
+ + nla_total_size(sizeof(struct xfrm_user_migrate) * num_migrate)
+ + userpolicy_type_attrsize();
}
static int build_migrate(struct sk_buff *skb, struct xfrm_migrate *m,
- int num_migrate, struct xfrm_selector *sel,
- u8 dir, u8 type)
+ int num_migrate, struct xfrm_kmaddress *k,
+ struct xfrm_selector *sel, u8 dir, u8 type)
{
struct xfrm_migrate *mp;
struct xfrm_userpolicy_id *pol_id;
@@ -1821,6 +1848,9 @@ static int build_migrate(struct sk_buff *skb, struct xfrm_migrate *m,
memcpy(&pol_id->sel, sel, sizeof(pol_id->sel));
pol_id->dir = dir;
+ if (k != NULL && (copy_to_user_kmaddress(k, skb) < 0))
+ goto nlmsg_failure;
+
if (copy_to_user_policy_type(type, skb) < 0)
goto nlmsg_failure;
@@ -1836,23 +1866,25 @@ nlmsg_failure:
}
static int xfrm_send_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)
{
struct sk_buff *skb;
- skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate), GFP_ATOMIC);
+ skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k), GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
/* build migrate */
- if (build_migrate(skb, m, num_migrate, sel, dir, type) < 0)
+ if (build_migrate(skb, m, num_migrate, k, sel, dir, type) < 0)
BUG();
return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_MIGRATE, GFP_ATOMIC);
}
#else
static int xfrm_send_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)
{
return -ENOPROTOOPT;
}
@@ -1901,6 +1933,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
[XFRMA_COADDR] = { .len = sizeof(xfrm_address_t) },
[XFRMA_POLICY_TYPE] = { .len = sizeof(struct xfrm_userpolicy_type)},
[XFRMA_MIGRATE] = { .len = sizeof(struct xfrm_user_migrate) },
+ [XFRMA_KMADDRESS] = { .len = sizeof(struct xfrm_user_kmaddress) },
};
static struct xfrm_link {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 08:41:58 +0100