#include <linux/in6.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <net/net_namespace.h>
+#include <net/netns/generic.h>
#include <net/xfrm.h>
#include <net/sock.h>
#define _X2KEY(x) ((x) == XFRM_INF ? 0 : (x))
#define _KEY2X(x) ((x) == 0 ? XFRM_INF : (x))
+static int pfkey_net_id __read_mostly;
+struct netns_pfkey {
+ /* List of all pfkey sockets. */
+ struct hlist_head table;
+ atomic_t socks_nr;
+};
+static DEFINE_MUTEX(pfkey_mutex);
-/* List of all pfkey sockets. */
-static HLIST_HEAD(pfkey_table);
-static DECLARE_WAIT_QUEUE_HEAD(pfkey_table_wait);
-static DEFINE_RWLOCK(pfkey_table_lock);
-static atomic_t pfkey_table_users = ATOMIC_INIT(0);
-
-static atomic_t pfkey_socks_nr = ATOMIC_INIT(0);
-
+#define DUMMY_MARK 0
+static struct xfrm_mark dummy_mark = {0, 0};
struct pfkey_sock {
/* struct sock must be the first member of struct pfkey_sock */
struct sock sk;
static void pfkey_sock_destruct(struct sock *sk)
{
+ struct net *net = sock_net(sk);
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+
pfkey_terminate_dump(pfkey_sk(sk));
skb_queue_purge(&sk->sk_receive_queue);
if (!sock_flag(sk, SOCK_DEAD)) {
- printk("Attempt to release alive pfkey socket: %p\n", sk);
+ pr_err("Attempt to release alive pfkey socket: %p\n", sk);
return;
}
WARN_ON(atomic_read(&sk->sk_rmem_alloc));
WARN_ON(atomic_read(&sk->sk_wmem_alloc));
- atomic_dec(&pfkey_socks_nr);
-}
-
-static void pfkey_table_grab(void)
-{
- write_lock_bh(&pfkey_table_lock);
-
- if (atomic_read(&pfkey_table_users)) {
- DECLARE_WAITQUEUE(wait, current);
-
- add_wait_queue_exclusive(&pfkey_table_wait, &wait);
- for(;;) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- if (atomic_read(&pfkey_table_users) == 0)
- break;
- write_unlock_bh(&pfkey_table_lock);
- schedule();
- write_lock_bh(&pfkey_table_lock);
- }
-
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&pfkey_table_wait, &wait);
- }
-}
-
-static __inline__ void pfkey_table_ungrab(void)
-{
- write_unlock_bh(&pfkey_table_lock);
- wake_up(&pfkey_table_wait);
+ atomic_dec(&net_pfkey->socks_nr);
}
-static __inline__ void pfkey_lock_table(void)
-{
- /* read_lock() synchronizes us to pfkey_table_grab */
-
- read_lock(&pfkey_table_lock);
- atomic_inc(&pfkey_table_users);
- read_unlock(&pfkey_table_lock);
-}
-
-static __inline__ void pfkey_unlock_table(void)
-{
- if (atomic_dec_and_test(&pfkey_table_users))
- wake_up(&pfkey_table_wait);
-}
-
-
static const struct proto_ops pfkey_ops;
static void pfkey_insert(struct sock *sk)
{
- pfkey_table_grab();
- sk_add_node(sk, &pfkey_table);
- pfkey_table_ungrab();
+ struct net *net = sock_net(sk);
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+
+ mutex_lock(&pfkey_mutex);
+ sk_add_node_rcu(sk, &net_pfkey->table);
+ mutex_unlock(&pfkey_mutex);
}
static void pfkey_remove(struct sock *sk)
{
- pfkey_table_grab();
- sk_del_node_init(sk);
- pfkey_table_ungrab();
+ mutex_lock(&pfkey_mutex);
+ sk_del_node_init_rcu(sk);
+ mutex_unlock(&pfkey_mutex);
}
static struct proto key_proto = {
.obj_size = sizeof(struct pfkey_sock),
};
-static int pfkey_create(struct net *net, struct socket *sock, int protocol)
+static int pfkey_create(struct net *net, struct socket *sock, int protocol,
+ int kern)
{
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
struct sock *sk;
int err;
- if (net != &init_net)
- return -EAFNOSUPPORT;
-
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (sock->type != SOCK_RAW)
sk->sk_family = PF_KEY;
sk->sk_destruct = pfkey_sock_destruct;
- atomic_inc(&pfkey_socks_nr);
+ atomic_inc(&net_pfkey->socks_nr);
pfkey_insert(sk);
sock_orphan(sk);
sock->sk = NULL;
skb_queue_purge(&sk->sk_write_queue);
+
+ synchronize_rcu();
sock_put(sk);
return 0;
#define BROADCAST_REGISTERED 2
#define BROADCAST_PROMISC_ONLY 4
static int pfkey_broadcast(struct sk_buff *skb, gfp_t allocation,
- int broadcast_flags, struct sock *one_sk)
+ int broadcast_flags, struct sock *one_sk,
+ struct net *net)
{
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
struct sock *sk;
struct hlist_node *node;
struct sk_buff *skb2 = NULL;
if (!skb)
return -ENOMEM;
- pfkey_lock_table();
- sk_for_each(sk, node, &pfkey_table) {
+ rcu_read_lock();
+ sk_for_each_rcu(sk, node, &net_pfkey->table) {
struct pfkey_sock *pfk = pfkey_sk(sk);
int err2;
if ((broadcast_flags & BROADCAST_REGISTERED) && err)
err = err2;
}
- pfkey_unlock_table();
+ rcu_read_unlock();
if (one_sk != NULL)
err = pfkey_broadcast_one(skb, &skb2, allocation, one_sk);
- if (skb2)
- kfree_skb(skb2);
+ kfree_skb(skb2);
kfree_skb(skb);
return err;
}
hdr->sadb_msg_seq = 0;
hdr->sadb_msg_errno = rc;
pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
- &pfk->sk);
+ &pfk->sk, sock_net(&pfk->sk));
pfk->dump.skb = NULL;
}
hdr->sadb_msg_len = (sizeof(struct sadb_msg) /
sizeof(uint64_t));
- pfkey_broadcast(skb, GFP_KERNEL, BROADCAST_ONE, sk);
+ pfkey_broadcast(skb, GFP_KERNEL, BROADCAST_ONE, sk, sock_net(sk));
return 0;
}
xaddr);
}
-static struct xfrm_state *pfkey_xfrm_state_lookup(struct sadb_msg *hdr, void **ext_hdrs)
+static struct xfrm_state *pfkey_xfrm_state_lookup(struct net *net, struct sadb_msg *hdr, void **ext_hdrs)
{
struct sadb_sa *sa;
struct sadb_address *addr;
if (!xaddr)
return NULL;
- return xfrm_state_lookup(xaddr, sa->sadb_sa_spi, proto, family);
+ return xfrm_state_lookup(net, DUMMY_MARK, xaddr, sa->sadb_sa_spi, proto, family);
}
#define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1)))
return __pfkey_xfrm_state2msg(x, 0, hsc);
}
-static struct xfrm_state * pfkey_msg2xfrm_state(struct sadb_msg *hdr,
+static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
+ struct sadb_msg *hdr,
void **ext_hdrs)
{
struct xfrm_state *x;
(key->sadb_key_bits+7) / 8 > key->sadb_key_len * sizeof(uint64_t)))
return ERR_PTR(-EINVAL);
- x = xfrm_state_alloc(&init_net);
+ x = xfrm_state_alloc(net);
if (x == NULL)
return ERR_PTR(-ENOBUFS);
x->aalg->alg_key_len = key->sadb_key_bits;
memcpy(x->aalg->alg_key, key+1, keysize);
}
+ x->aalg->alg_trunc_len = a->uinfo.auth.icv_truncbits;
x->props.aalgo = sa->sadb_sa_auth;
/* x->algo.flags = sa->sadb_sa_flags; */
}
ext_hdrs[SADB_X_EXT_NAT_T_DPORT-1];
natt->encap_dport = n_port->sadb_x_nat_t_port_port;
}
+ memset(&natt->encap_oa, 0, sizeof(natt->encap_oa));
}
err = xfrm_init_state(x);
static int pfkey_getspi(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
struct sk_buff *resp_skb;
struct sadb_x_sa2 *sa2;
struct sadb_address *saddr, *daddr;
}
if (hdr->sadb_msg_seq) {
- x = xfrm_find_acq_byseq(hdr->sadb_msg_seq);
+ x = xfrm_find_acq_byseq(net, DUMMY_MARK, hdr->sadb_msg_seq);
if (x && xfrm_addr_cmp(&x->id.daddr, xdaddr, family)) {
xfrm_state_put(x);
x = NULL;
}
if (!x)
- x = xfrm_find_acq(mode, reqid, proto, xdaddr, xsaddr, 1, family);
+ x = xfrm_find_acq(net, &dummy_mark, mode, reqid, proto, xdaddr, xsaddr, 1, family);
if (x == NULL)
return -ENOENT;
xfrm_state_put(x);
- pfkey_broadcast(resp_skb, GFP_KERNEL, BROADCAST_ONE, sk);
+ pfkey_broadcast(resp_skb, GFP_KERNEL, BROADCAST_ONE, sk, net);
return 0;
}
static int pfkey_acquire(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
struct xfrm_state *x;
if (hdr->sadb_msg_len != sizeof(struct sadb_msg)/8)
if (hdr->sadb_msg_seq == 0 || hdr->sadb_msg_errno == 0)
return 0;
- x = xfrm_find_acq_byseq(hdr->sadb_msg_seq);
+ x = xfrm_find_acq_byseq(net, DUMMY_MARK, hdr->sadb_msg_seq);
if (x == NULL)
return 0;
spin_lock_bh(&x->lock);
if (x->km.state == XFRM_STATE_ACQ) {
x->km.state = XFRM_STATE_ERROR;
- wake_up(&init_net.xfrm.km_waitq);
+ wake_up(&net->xfrm.km_waitq);
}
spin_unlock_bh(&x->lock);
xfrm_state_put(x);
case XFRM_MSG_POLEXPIRE:
// return SADB_X_SPDEXPIRE;
default:
- printk("pfkey: Unknown policy event %d\n", event);
+ pr_err("pfkey: Unknown policy event %d\n", event);
break;
}
case XFRM_MSG_EXPIRE:
return SADB_EXPIRE;
default:
- printk("pfkey: Unknown SA event %d\n", event);
+ pr_err("pfkey: Unknown SA event %d\n", event);
break;
}
hdr->sadb_msg_seq = c->seq;
hdr->sadb_msg_pid = c->pid;
- pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
+ pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xs_net(x));
return 0;
}
static int pfkey_add(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
struct xfrm_state *x;
int err;
struct km_event c;
- x = pfkey_msg2xfrm_state(hdr, ext_hdrs);
+ x = pfkey_msg2xfrm_state(net, hdr, ext_hdrs);
if (IS_ERR(x))
return PTR_ERR(x);
static int pfkey_delete(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
struct xfrm_state *x;
struct km_event c;
int err;
ext_hdrs[SADB_EXT_ADDRESS_DST-1]))
return -EINVAL;
- x = pfkey_xfrm_state_lookup(hdr, ext_hdrs);
+ x = pfkey_xfrm_state_lookup(net, hdr, ext_hdrs);
if (x == NULL)
return -ESRCH;
static int pfkey_get(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
__u8 proto;
struct sk_buff *out_skb;
struct sadb_msg *out_hdr;
ext_hdrs[SADB_EXT_ADDRESS_DST-1]))
return -EINVAL;
- x = pfkey_xfrm_state_lookup(hdr, ext_hdrs);
+ x = pfkey_xfrm_state_lookup(net, hdr, ext_hdrs);
if (x == NULL)
return -ESRCH;
out_hdr->sadb_msg_reserved = 0;
out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
- pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk);
+ pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk, sock_net(sk));
return 0;
}
return -ENOBUFS;
}
- pfkey_broadcast(supp_skb, GFP_KERNEL, BROADCAST_REGISTERED, sk);
+ pfkey_broadcast(supp_skb, GFP_KERNEL, BROADCAST_REGISTERED, sk, sock_net(sk));
return 0;
}
+static int unicast_flush_resp(struct sock *sk, struct sadb_msg *ihdr)
+{
+ struct sk_buff *skb;
+ struct sadb_msg *hdr;
+
+ skb = alloc_skb(sizeof(struct sadb_msg) + 16, GFP_ATOMIC);
+ if (!skb)
+ return -ENOBUFS;
+
+ hdr = (struct sadb_msg *) skb_put(skb, sizeof(struct sadb_msg));
+ memcpy(hdr, ihdr, sizeof(struct sadb_msg));
+ hdr->sadb_msg_errno = (uint8_t) 0;
+ hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
+
+ return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ONE, sk, sock_net(sk));
+}
+
static int key_notify_sa_flush(struct km_event *c)
{
struct sk_buff *skb;
hdr->sadb_msg_errno = (uint8_t) 0;
hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
- pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
+ pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net);
return 0;
}
static int pfkey_flush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
unsigned proto;
struct km_event c;
struct xfrm_audit audit_info;
- int err;
+ int err, err2;
proto = pfkey_satype2proto(hdr->sadb_msg_satype);
if (proto == 0)
audit_info.loginuid = audit_get_loginuid(current);
audit_info.sessionid = audit_get_sessionid(current);
audit_info.secid = 0;
- err = xfrm_state_flush(proto, &audit_info);
- if (err)
- return err;
+ err = xfrm_state_flush(net, proto, &audit_info);
+ err2 = unicast_flush_resp(sk, hdr);
+ if (err || err2) {
+ if (err == -ESRCH) /* empty table - go quietly */
+ err = 0;
+ return err ? err : err2;
+ }
+
c.data.proto = proto;
c.seq = hdr->sadb_msg_seq;
c.pid = hdr->sadb_msg_pid;
c.event = XFRM_MSG_FLUSHSA;
+ c.net = net;
km_state_notify(NULL, &c);
return 0;
if (pfk->dump.skb)
pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
- &pfk->sk);
+ &pfk->sk, sock_net(&pfk->sk));
pfk->dump.skb = out_skb;
return 0;
static int pfkey_dump_sa(struct pfkey_sock *pfk)
{
- return xfrm_state_walk(&pfk->dump.u.state, dump_sa, (void *) pfk);
+ struct net *net = sock_net(&pfk->sk);
+ return xfrm_state_walk(net, &pfk->dump.u.state, dump_sa, (void *) pfk);
}
static void pfkey_dump_sa_done(struct pfkey_sock *pfk)
return -EINVAL;
pfk->promisc = satype;
}
- pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, BROADCAST_ALL, NULL);
+ pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, BROADCAST_ALL, NULL, sock_net(sk));
return 0;
}
return 0;
}
-static u32 gen_reqid(void)
+static u32 gen_reqid(struct net *net)
{
struct xfrm_policy_walk walk;
u32 start;
if (reqid == 0)
reqid = IPSEC_MANUAL_REQID_MAX+1;
xfrm_policy_walk_init(&walk, XFRM_POLICY_TYPE_MAIN);
- rc = xfrm_policy_walk(&walk, check_reqid, (void*)&reqid);
+ rc = xfrm_policy_walk(net, &walk, check_reqid, (void*)&reqid);
xfrm_policy_walk_done(&walk);
if (rc != -EEXIST)
return reqid;
static int
parse_ipsecrequest(struct xfrm_policy *xp, struct sadb_x_ipsecrequest *rq)
{
+ struct net *net = xp_net(xp);
struct xfrm_tmpl *t = xp->xfrm_vec + xp->xfrm_nr;
int mode;
t->reqid = rq->sadb_x_ipsecrequest_reqid;
if (t->reqid > IPSEC_MANUAL_REQID_MAX)
t->reqid = 0;
- if (!t->reqid && !(t->reqid = gen_reqid()))
+ if (!t->reqid && !(t->reqid = gen_reqid(net)))
return -ENOBUFS;
}
int err;
out_skb = pfkey_xfrm_policy2msg_prep(xp);
- if (IS_ERR(out_skb)) {
- err = PTR_ERR(out_skb);
- goto out;
- }
+ if (IS_ERR(out_skb))
+ return PTR_ERR(out_skb);
+
err = pfkey_xfrm_policy2msg(out_skb, xp, dir);
if (err < 0)
return err;
out_hdr->sadb_msg_errno = 0;
out_hdr->sadb_msg_seq = c->seq;
out_hdr->sadb_msg_pid = c->pid;
- pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
-out:
+ pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xp_net(xp));
return 0;
}
static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
int err = 0;
struct sadb_lifetime *lifetime;
struct sadb_address *sa;
if (!pol->sadb_x_policy_dir || pol->sadb_x_policy_dir >= IPSEC_DIR_MAX)
return -EINVAL;
- xp = xfrm_policy_alloc(GFP_KERNEL);
+ xp = xfrm_policy_alloc(net, GFP_KERNEL);
if (xp == NULL)
return -ENOBUFS;
static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
int err;
struct sadb_address *sa;
struct sadb_x_policy *pol;
return err;
}
- xp = xfrm_policy_bysel_ctx(XFRM_POLICY_TYPE_MAIN,
+ xp = xfrm_policy_bysel_ctx(net, DUMMY_MARK, XFRM_POLICY_TYPE_MAIN,
pol->sadb_x_policy_dir - 1, &sel, pol_ctx,
1, &err);
security_xfrm_policy_free(pol_ctx);
out_hdr->sadb_msg_errno = 0;
out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
- pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk);
+ pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk, xp_net(xp));
err = 0;
out:
static int pfkey_spdget(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
unsigned int dir;
int err = 0, delete;
struct sadb_x_policy *pol;
return -EINVAL;
delete = (hdr->sadb_msg_type == SADB_X_SPDDELETE2);
- xp = xfrm_policy_byid(XFRM_POLICY_TYPE_MAIN, dir, pol->sadb_x_policy_id,
- delete, &err);
+ xp = xfrm_policy_byid(net, DUMMY_MARK, XFRM_POLICY_TYPE_MAIN,
+ dir, pol->sadb_x_policy_id, delete, &err);
if (xp == NULL)
return -ENOENT;
if (pfk->dump.skb)
pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
- &pfk->sk);
+ &pfk->sk, sock_net(&pfk->sk));
pfk->dump.skb = out_skb;
return 0;
static int pfkey_dump_sp(struct pfkey_sock *pfk)
{
- return xfrm_policy_walk(&pfk->dump.u.policy, dump_sp, (void *) pfk);
+ struct net *net = sock_net(&pfk->sk);
+ return xfrm_policy_walk(net, &pfk->dump.u.policy, dump_sp, (void *) pfk);
}
static void pfkey_dump_sp_done(struct pfkey_sock *pfk)
hdr->sadb_msg_version = PF_KEY_V2;
hdr->sadb_msg_errno = (uint8_t) 0;
hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
- pfkey_broadcast(skb_out, GFP_ATOMIC, BROADCAST_ALL, NULL);
+ pfkey_broadcast(skb_out, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net);
return 0;
}
static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
+ struct net *net = sock_net(sk);
struct km_event c;
struct xfrm_audit audit_info;
- int err;
+ int err, err2;
audit_info.loginuid = audit_get_loginuid(current);
audit_info.sessionid = audit_get_sessionid(current);
audit_info.secid = 0;
- err = xfrm_policy_flush(XFRM_POLICY_TYPE_MAIN, &audit_info);
- if (err)
+ err = xfrm_policy_flush(net, XFRM_POLICY_TYPE_MAIN, &audit_info);
+ err2 = unicast_flush_resp(sk, hdr);
+ if (err || err2) {
+ if (err == -ESRCH) /* empty table - old silent behavior */
+ return 0;
return err;
+ }
+
c.data.type = XFRM_POLICY_TYPE_MAIN;
c.event = XFRM_MSG_FLUSHPOLICY;
c.pid = hdr->sadb_msg_pid;
c.seq = hdr->sadb_msg_seq;
+ c.net = net;
km_policy_notify(NULL, 0, &c);
return 0;
int err;
pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL,
- BROADCAST_PROMISC_ONLY, NULL);
+ BROADCAST_PROMISC_ONLY, NULL, sock_net(sk));
memset(ext_hdrs, 0, sizeof(ext_hdrs));
err = parse_exthdrs(skb, hdr, ext_hdrs);
out_hdr->sadb_msg_seq = 0;
out_hdr->sadb_msg_pid = 0;
- pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL);
+ pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL, xs_net(x));
return 0;
}
static int pfkey_send_notify(struct xfrm_state *x, struct km_event *c)
{
- if (atomic_read(&pfkey_socks_nr) == 0)
+ struct net *net = x ? xs_net(x) : c->net;
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+
+ if (atomic_read(&net_pfkey->socks_nr) == 0)
return 0;
switch (c->event) {
case XFRM_MSG_NEWAE: /* not yet supported */
break;
default:
- printk("pfkey: Unknown SA event %d\n", c->event);
+ pr_err("pfkey: Unknown SA event %d\n", c->event);
break;
}
break;
return key_notify_policy_flush(c);
default:
- printk("pfkey: Unknown policy event %d\n", c->event);
+ pr_err("pfkey: Unknown policy event %d\n", c->event);
break;
}
static u32 get_acqseq(void)
{
u32 res;
- static u32 acqseq;
- static DEFINE_SPINLOCK(acqseq_lock);
+ static atomic_t acqseq;
- spin_lock_bh(&acqseq_lock);
- res = (++acqseq ? : ++acqseq);
- spin_unlock_bh(&acqseq_lock);
+ do {
+ res = atomic_inc_return(&acqseq);
+ } while (!res);
return res;
}
xfrm_ctx->ctx_len);
}
- return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL);
+ return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL, xs_net(x));
}
static struct xfrm_policy *pfkey_compile_policy(struct sock *sk, int opt,
u8 *data, int len, int *dir)
{
+ struct net *net = sock_net(sk);
struct xfrm_policy *xp;
struct sadb_x_policy *pol = (struct sadb_x_policy*)data;
struct sadb_x_sec_ctx *sec_ctx;
(!pol->sadb_x_policy_dir || pol->sadb_x_policy_dir > IPSEC_DIR_OUTBOUND))
return NULL;
- xp = xfrm_policy_alloc(GFP_ATOMIC);
+ xp = xfrm_policy_alloc(net, GFP_ATOMIC);
if (xp == NULL) {
*dir = -ENOBUFS;
return NULL;
n_port->sadb_x_nat_t_port_port = sport;
n_port->sadb_x_nat_t_port_reserved = 0;
- return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL);
+ return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL, xs_net(x));
}
#ifdef CONFIG_NET_KEY_MIGRATE
}
/* broadcast migrate message to sockets */
- pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
+ pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, &init_net);
return 0;
out:
if (err && hdr && pfkey_error(hdr, err, sk) == 0)
err = 0;
- if (skb)
- kfree_skb(skb);
+ kfree_skb(skb);
return err ? : len;
}
if (err)
goto out_free;
- sock_recv_timestamp(msg, sk, skb);
+ sock_recv_ts_and_drops(msg, sk, skb);
err = (flags & MSG_TRUNC) ? skb->len : copied;
.recvmsg = pfkey_recvmsg,
};
-static struct net_proto_family pfkey_family_ops = {
+static const struct net_proto_family pfkey_family_ops = {
.family = PF_KEY,
.create = pfkey_create,
.owner = THIS_MODULE,
#ifdef CONFIG_PROC_FS
static int pfkey_seq_show(struct seq_file *f, void *v)
{
- struct sock *s;
+ struct sock *s = sk_entry(v);
- s = (struct sock *)v;
if (v == SEQ_START_TOKEN)
seq_printf(f ,"sk RefCnt Rmem Wmem User Inode\n");
else
seq_printf(f ,"%p %-6d %-6u %-6u %-6u %-6lu\n",
s,
atomic_read(&s->sk_refcnt),
- atomic_read(&s->sk_rmem_alloc),
- atomic_read(&s->sk_wmem_alloc),
+ sk_rmem_alloc_get(s),
+ sk_wmem_alloc_get(s),
sock_i_uid(s),
sock_i_ino(s)
);
static void *pfkey_seq_start(struct seq_file *f, loff_t *ppos)
{
- struct sock *s;
- struct hlist_node *node;
- loff_t pos = *ppos;
+ struct net *net = seq_file_net(f);
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
- read_lock(&pfkey_table_lock);
- if (pos == 0)
- return SEQ_START_TOKEN;
-
- sk_for_each(s, node, &pfkey_table)
- if (pos-- == 1)
- return s;
-
- return NULL;
+ rcu_read_lock();
+ return seq_hlist_start_head_rcu(&net_pfkey->table, *ppos);
}
static void *pfkey_seq_next(struct seq_file *f, void *v, loff_t *ppos)
{
- ++*ppos;
- return (v == SEQ_START_TOKEN) ?
- sk_head(&pfkey_table) :
- sk_next((struct sock *)v);
+ struct net *net = seq_file_net(f);
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+
+ return seq_hlist_next_rcu(v, &net_pfkey->table, ppos);
}
static void pfkey_seq_stop(struct seq_file *f, void *v)
{
- read_unlock(&pfkey_table_lock);
+ rcu_read_unlock();
}
-static struct seq_operations pfkey_seq_ops = {
+static const struct seq_operations pfkey_seq_ops = {
.start = pfkey_seq_start,
.next = pfkey_seq_next,
.stop = pfkey_seq_stop,
static int pfkey_seq_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &pfkey_seq_ops);
+ return seq_open_net(inode, file, &pfkey_seq_ops,
+ sizeof(struct seq_net_private));
}
-static struct file_operations pfkey_proc_ops = {
+static const struct file_operations pfkey_proc_ops = {
.open = pfkey_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = seq_release_net,
};
-static int pfkey_init_proc(void)
+static int __net_init pfkey_init_proc(struct net *net)
{
struct proc_dir_entry *e;
- e = proc_net_fops_create(&init_net, "pfkey", 0, &pfkey_proc_ops);
+ e = proc_net_fops_create(net, "pfkey", 0, &pfkey_proc_ops);
if (e == NULL)
return -ENOMEM;
return 0;
}
-static void pfkey_exit_proc(void)
+static void __net_exit pfkey_exit_proc(struct net *net)
{
- proc_net_remove(&init_net, "pfkey");
+ proc_net_remove(net, "pfkey");
}
#else
-static inline int pfkey_init_proc(void)
+static inline int pfkey_init_proc(struct net *net)
{
return 0;
}
-static inline void pfkey_exit_proc(void)
+static inline void pfkey_exit_proc(struct net *net)
{
}
#endif
.migrate = pfkey_send_migrate,
};
+static int __net_init pfkey_net_init(struct net *net)
+{
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+ int rv;
+
+ INIT_HLIST_HEAD(&net_pfkey->table);
+ atomic_set(&net_pfkey->socks_nr, 0);
+
+ rv = pfkey_init_proc(net);
+
+ return rv;
+}
+
+static void __net_exit pfkey_net_exit(struct net *net)
+{
+ struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+
+ pfkey_exit_proc(net);
+ BUG_ON(!hlist_empty(&net_pfkey->table));
+}
+
+static struct pernet_operations pfkey_net_ops = {
+ .init = pfkey_net_init,
+ .exit = pfkey_net_exit,
+ .id = &pfkey_net_id,
+ .size = sizeof(struct netns_pfkey),
+};
+
static void __exit ipsec_pfkey_exit(void)
{
xfrm_unregister_km(&pfkeyv2_mgr);
- pfkey_exit_proc();
sock_unregister(PF_KEY);
+ unregister_pernet_subsys(&pfkey_net_ops);
proto_unregister(&key_proto);
}
if (err != 0)
goto out;
- err = sock_register(&pfkey_family_ops);
+ err = register_pernet_subsys(&pfkey_net_ops);
if (err != 0)
goto out_unregister_key_proto;
- err = pfkey_init_proc();
+ err = sock_register(&pfkey_family_ops);
if (err != 0)
- goto out_sock_unregister;
+ goto out_unregister_pernet;
err = xfrm_register_km(&pfkeyv2_mgr);
if (err != 0)
- goto out_remove_proc_entry;
+ goto out_sock_unregister;
out:
return err;
-out_remove_proc_entry:
- pfkey_exit_proc();
+
out_sock_unregister:
sock_unregister(PF_KEY);
+out_unregister_pernet:
+ unregister_pernet_subsys(&pfkey_net_ops);
out_unregister_key_proto:
proto_unregister(&key_proto);
goto out;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff