* userspace via nfetlink.
*
* (C) 2005 by Harald Welte <laforge@netfilter.org>
+ * (C) 2007 by Patrick McHardy <kaber@trash.net>
*
* Based on the old ipv4-only ip_queue.c:
* (C) 2000-2002 James Morris <jmorris@intercode.com.au>
#define NFQNL_QMAX_DEFAULT 1024
-#if 0
-#define QDEBUG(x, args ...) printk(KERN_DEBUG "%s(%d):%s(): " x, \
- __FILE__, __LINE__, __FUNCTION__, \
- ## args)
-#else
-#define QDEBUG(x, ...)
-#endif
-
struct nfqnl_instance {
struct hlist_node hlist; /* global list of queues */
- atomic_t use;
+ struct rcu_head rcu;
int peer_pid;
unsigned int queue_maxlen;
typedef int (*nfqnl_cmpfn)(struct nf_queue_entry *, unsigned long);
-static DEFINE_RWLOCK(instances_lock);
+static DEFINE_SPINLOCK(instances_lock);
#define INSTANCE_BUCKETS 16
-static struct hlist_head instance_table[INSTANCE_BUCKETS];
+static struct hlist_head instance_table[INSTANCE_BUCKETS] __read_mostly;
static inline u_int8_t instance_hashfn(u_int16_t queue_num)
{
}
static struct nfqnl_instance *
-__instance_lookup(u_int16_t queue_num)
+instance_lookup(u_int16_t queue_num)
{
struct hlist_head *head;
struct hlist_node *pos;
struct nfqnl_instance *inst;
head = &instance_table[instance_hashfn(queue_num)];
- hlist_for_each_entry(inst, pos, head, hlist) {
+ hlist_for_each_entry_rcu(inst, pos, head, hlist) {
if (inst->queue_num == queue_num)
return inst;
}
}
static struct nfqnl_instance *
-instance_lookup_get(u_int16_t queue_num)
-{
- struct nfqnl_instance *inst;
-
- read_lock_bh(&instances_lock);
- inst = __instance_lookup(queue_num);
- if (inst)
- atomic_inc(&inst->use);
- read_unlock_bh(&instances_lock);
-
- return inst;
-}
-
-static void
-instance_put(struct nfqnl_instance *inst)
-{
- if (inst && atomic_dec_and_test(&inst->use)) {
- QDEBUG("kfree(inst=%p)\n", inst);
- kfree(inst);
- }
-}
-
-static struct nfqnl_instance *
instance_create(u_int16_t queue_num, int pid)
{
struct nfqnl_instance *inst;
+ unsigned int h;
+ int err;
- QDEBUG("entering for queue_num=%u, pid=%d\n", queue_num, pid);
-
- write_lock_bh(&instances_lock);
- if (__instance_lookup(queue_num)) {
- inst = NULL;
- QDEBUG("aborting, instance already exists\n");
+ spin_lock(&instances_lock);
+ if (instance_lookup(queue_num)) {
+ err = -EEXIST;
goto out_unlock;
}
inst = kzalloc(sizeof(*inst), GFP_ATOMIC);
- if (!inst)
+ if (!inst) {
+ err = -ENOMEM;
goto out_unlock;
+ }
inst->queue_num = queue_num;
inst->peer_pid = pid;
inst->queue_maxlen = NFQNL_QMAX_DEFAULT;
inst->copy_range = 0xfffff;
inst->copy_mode = NFQNL_COPY_NONE;
- /* needs to be two, since we _put() after creation */
- atomic_set(&inst->use, 2);
spin_lock_init(&inst->lock);
INIT_LIST_HEAD(&inst->queue_list);
+ INIT_RCU_HEAD(&inst->rcu);
- if (!try_module_get(THIS_MODULE))
+ if (!try_module_get(THIS_MODULE)) {
+ err = -EAGAIN;
goto out_free;
+ }
- hlist_add_head(&inst->hlist,
- &instance_table[instance_hashfn(queue_num)]);
-
- write_unlock_bh(&instances_lock);
+ h = instance_hashfn(queue_num);
+ hlist_add_head_rcu(&inst->hlist, &instance_table[h]);
- QDEBUG("successfully created new instance\n");
+ spin_unlock(&instances_lock);
return inst;
out_free:
kfree(inst);
out_unlock:
- write_unlock_bh(&instances_lock);
- return NULL;
+ spin_unlock(&instances_lock);
+ return ERR_PTR(err);
}
static void nfqnl_flush(struct nfqnl_instance *queue, nfqnl_cmpfn cmpfn,
unsigned long data);
static void
-_instance_destroy2(struct nfqnl_instance *inst, int lock)
+instance_destroy_rcu(struct rcu_head *head)
{
- /* first pull it out of the global list */
- if (lock)
- write_lock_bh(&instances_lock);
+ struct nfqnl_instance *inst = container_of(head, struct nfqnl_instance,
+ rcu);
- QDEBUG("removing instance %p (queuenum=%u) from hash\n",
- inst, inst->queue_num);
- hlist_del(&inst->hlist);
-
- if (lock)
- write_unlock_bh(&instances_lock);
-
- /* then flush all pending skbs from the queue */
nfqnl_flush(inst, NULL, 0);
-
- /* and finally put the refcount */
- instance_put(inst);
-
+ kfree(inst);
module_put(THIS_MODULE);
}
-static inline void
+static void
__instance_destroy(struct nfqnl_instance *inst)
{
- _instance_destroy2(inst, 0);
+ hlist_del_rcu(&inst->hlist);
+ call_rcu(&inst->rcu, instance_destroy_rcu);
}
-static inline void
+static void
instance_destroy(struct nfqnl_instance *inst)
{
- _instance_destroy2(inst, 1);
+ spin_lock(&instances_lock);
+ __instance_destroy(inst);
+ spin_unlock(&instances_lock);
}
static inline void
queue->queue_total++;
}
-static inline int
-__nfqnl_set_mode(struct nfqnl_instance *queue,
- unsigned char mode, unsigned int range)
-{
- int status = 0;
-
- switch (mode) {
- case NFQNL_COPY_NONE:
- case NFQNL_COPY_META:
- queue->copy_mode = mode;
- queue->copy_range = 0;
- break;
-
- case NFQNL_COPY_PACKET:
- queue->copy_mode = mode;
- /* we're using struct nlattr which has 16bit nla_len */
- if (range > 0xffff)
- queue->copy_range = 0xffff;
- else
- queue->copy_range = range;
- break;
-
- default:
- status = -EINVAL;
-
- }
- return status;
-}
-
static struct nf_queue_entry *
find_dequeue_entry(struct nfqnl_instance *queue, unsigned int id)
{
static struct sk_buff *
nfqnl_build_packet_message(struct nfqnl_instance *queue,
- struct nf_queue_entry *entry, int *errp)
+ struct nf_queue_entry *entry)
{
sk_buff_data_t old_tail;
size_t size;
struct sk_buff *entskb = entry->skb;
struct net_device *indev;
struct net_device *outdev;
- __be32 tmp_uint;
-
- QDEBUG("entered\n");
- size = NLMSG_ALIGN(sizeof(struct nfgenmsg))
+ size = NLMSG_SPACE(sizeof(struct nfgenmsg))
+ nla_total_size(sizeof(struct nfqnl_msg_packet_hdr))
+ nla_total_size(sizeof(u_int32_t)) /* ifindex */
+ nla_total_size(sizeof(u_int32_t)) /* ifindex */
spin_lock_bh(&queue->lock);
- switch (queue->copy_mode) {
+ switch ((enum nfqnl_config_mode)queue->copy_mode) {
case NFQNL_COPY_META:
case NFQNL_COPY_NONE:
data_len = 0;
case NFQNL_COPY_PACKET:
if ((entskb->ip_summed == CHECKSUM_PARTIAL ||
entskb->ip_summed == CHECKSUM_COMPLETE) &&
- (*errp = skb_checksum_help(entskb))) {
+ skb_checksum_help(entskb)) {
spin_unlock_bh(&queue->lock);
return NULL;
}
size += nla_total_size(data_len);
break;
-
- default:
- *errp = -EINVAL;
- spin_unlock_bh(&queue->lock);
- return NULL;
}
entry->id = queue->id_sequence++;
indev = entry->indev;
if (indev) {
- tmp_uint = htonl(indev->ifindex);
#ifndef CONFIG_BRIDGE_NETFILTER
- NLA_PUT(skb, NFQA_IFINDEX_INDEV, sizeof(tmp_uint), &tmp_uint);
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_INDEV, htonl(indev->ifindex));
#else
if (entry->pf == PF_BRIDGE) {
/* Case 1: indev is physical input device, we need to
* look for bridge group (when called from
* netfilter_bridge) */
- NLA_PUT(skb, NFQA_IFINDEX_PHYSINDEV, sizeof(tmp_uint),
- &tmp_uint);
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_PHYSINDEV,
+ htonl(indev->ifindex));
/* this is the bridge group "brX" */
- tmp_uint = htonl(indev->br_port->br->dev->ifindex);
- NLA_PUT(skb, NFQA_IFINDEX_INDEV, sizeof(tmp_uint),
- &tmp_uint);
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_INDEV,
+ htonl(indev->br_port->br->dev->ifindex));
} else {
/* Case 2: indev is bridge group, we need to look for
* physical device (when called from ipv4) */
- NLA_PUT(skb, NFQA_IFINDEX_INDEV, sizeof(tmp_uint),
- &tmp_uint);
- if (entskb->nf_bridge
- && entskb->nf_bridge->physindev) {
- tmp_uint = htonl(entskb->nf_bridge->physindev->ifindex);
- NLA_PUT(skb, NFQA_IFINDEX_PHYSINDEV,
- sizeof(tmp_uint), &tmp_uint);
- }
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_INDEV,
+ htonl(indev->ifindex));
+ if (entskb->nf_bridge && entskb->nf_bridge->physindev)
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_PHYSINDEV,
+ htonl(entskb->nf_bridge->physindev->ifindex));
}
#endif
}
if (outdev) {
- tmp_uint = htonl(outdev->ifindex);
#ifndef CONFIG_BRIDGE_NETFILTER
- NLA_PUT(skb, NFQA_IFINDEX_OUTDEV, sizeof(tmp_uint), &tmp_uint);
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_OUTDEV, htonl(outdev->ifindex));
#else
if (entry->pf == PF_BRIDGE) {
/* Case 1: outdev is physical output device, we need to
* look for bridge group (when called from
* netfilter_bridge) */
- NLA_PUT(skb, NFQA_IFINDEX_PHYSOUTDEV, sizeof(tmp_uint),
- &tmp_uint);
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_PHYSOUTDEV,
+ htonl(outdev->ifindex));
/* this is the bridge group "brX" */
- tmp_uint = htonl(outdev->br_port->br->dev->ifindex);
- NLA_PUT(skb, NFQA_IFINDEX_OUTDEV, sizeof(tmp_uint),
- &tmp_uint);
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_OUTDEV,
+ htonl(outdev->br_port->br->dev->ifindex));
} else {
/* Case 2: outdev is bridge group, we need to look for
* physical output device (when called from ipv4) */
- NLA_PUT(skb, NFQA_IFINDEX_OUTDEV, sizeof(tmp_uint),
- &tmp_uint);
- if (entskb->nf_bridge
- && entskb->nf_bridge->physoutdev) {
- tmp_uint = htonl(entskb->nf_bridge->physoutdev->ifindex);
- NLA_PUT(skb, NFQA_IFINDEX_PHYSOUTDEV,
- sizeof(tmp_uint), &tmp_uint);
- }
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_OUTDEV,
+ htonl(outdev->ifindex));
+ if (entskb->nf_bridge && entskb->nf_bridge->physoutdev)
+ NLA_PUT_BE32(skb, NFQA_IFINDEX_PHYSOUTDEV,
+ htonl(entskb->nf_bridge->physoutdev->ifindex));
}
#endif
}
- if (entskb->mark) {
- tmp_uint = htonl(entskb->mark);
- NLA_PUT(skb, NFQA_MARK, sizeof(u_int32_t), &tmp_uint);
- }
+ if (entskb->mark)
+ NLA_PUT_BE32(skb, NFQA_MARK, htonl(entskb->mark));
if (indev && entskb->dev) {
struct nfqnl_msg_packet_hw phw;
if (data_len) {
struct nlattr *nla;
- int size = nla_attr_size(data_len);
+ int sz = nla_attr_size(data_len);
if (skb_tailroom(skb) < nla_total_size(data_len)) {
printk(KERN_WARNING "nf_queue: no tailroom!\n");
nla = (struct nlattr *)skb_put(skb, nla_total_size(data_len));
nla->nla_type = NFQA_PAYLOAD;
- nla->nla_len = size;
+ nla->nla_len = sz;
if (skb_copy_bits(entskb, 0, nla_data(nla), data_len))
BUG();
nla_put_failure:
if (skb)
kfree_skb(skb);
- *errp = -EINVAL;
if (net_ratelimit())
printk(KERN_ERR "nf_queue: error creating packet message\n");
return NULL;
static int
nfqnl_enqueue_packet(struct nf_queue_entry *entry, unsigned int queuenum)
{
- int status = -EINVAL;
struct sk_buff *nskb;
struct nfqnl_instance *queue;
+ int err;
- QDEBUG("entered\n");
-
- queue = instance_lookup_get(queuenum);
- if (!queue) {
- QDEBUG("no queue instance matching\n");
- return -EINVAL;
- }
+ /* rcu_read_lock()ed by nf_hook_slow() */
+ queue = instance_lookup(queuenum);
+ if (!queue)
+ goto err_out;
- if (queue->copy_mode == NFQNL_COPY_NONE) {
- QDEBUG("mode COPY_NONE, aborting\n");
- status = -EAGAIN;
- goto err_out_put;
- }
+ if (queue->copy_mode == NFQNL_COPY_NONE)
+ goto err_out;
- nskb = nfqnl_build_packet_message(queue, entry, &status);
+ nskb = nfqnl_build_packet_message(queue, entry);
if (nskb == NULL)
- goto err_out_put;
+ goto err_out;
spin_lock_bh(&queue->lock);
if (queue->queue_total >= queue->queue_maxlen) {
queue->queue_dropped++;
- status = -ENOSPC;
if (net_ratelimit())
printk(KERN_WARNING "nf_queue: full at %d entries, "
"dropping packets(s). Dropped: %d\n",
}
/* nfnetlink_unicast will either free the nskb or add it to a socket */
- status = nfnetlink_unicast(nskb, queue->peer_pid, MSG_DONTWAIT);
- if (status < 0) {
+ err = nfnetlink_unicast(nskb, queue->peer_pid, MSG_DONTWAIT);
+ if (err < 0) {
queue->queue_user_dropped++;
goto err_out_unlock;
}
__enqueue_entry(queue, entry);
spin_unlock_bh(&queue->lock);
- instance_put(queue);
- return status;
+ return 0;
err_out_free_nskb:
kfree_skb(nskb);
-
err_out_unlock:
spin_unlock_bh(&queue->lock);
-
-err_out_put:
- instance_put(queue);
- return status;
+err_out:
+ return -1;
}
static int
nfqnl_mangle(void *data, int data_len, struct nf_queue_entry *e)
{
+ struct sk_buff *nskb;
int diff;
- int err;
diff = data_len - e->skb->len;
if (diff < 0) {
if (data_len > 0xFFFF)
return -EINVAL;
if (diff > skb_tailroom(e->skb)) {
- err = pskb_expand_head(e->skb, 0,
+ nskb = skb_copy_expand(e->skb, 0,
diff - skb_tailroom(e->skb),
GFP_ATOMIC);
- if (err) {
+ if (!nskb) {
printk(KERN_WARNING "nf_queue: OOM "
"in mangle, dropping packet\n");
- return err;
+ return -ENOMEM;
}
+ kfree_skb(e->skb);
+ e->skb = nskb;
}
skb_put(e->skb, diff);
}
nfqnl_set_mode(struct nfqnl_instance *queue,
unsigned char mode, unsigned int range)
{
- int status;
+ int status = 0;
spin_lock_bh(&queue->lock);
- status = __nfqnl_set_mode(queue, mode, range);
+ switch (mode) {
+ case NFQNL_COPY_NONE:
+ case NFQNL_COPY_META:
+ queue->copy_mode = mode;
+ queue->copy_range = 0;
+ break;
+
+ case NFQNL_COPY_PACKET:
+ queue->copy_mode = mode;
+ /* we're using struct nlattr which has 16bit nla_len */
+ if (range > 0xffff)
+ queue->copy_range = 0xffff;
+ else
+ queue->copy_range = range;
+ break;
+
+ default:
+ status = -EINVAL;
+
+ }
spin_unlock_bh(&queue->lock);
return status;
{
int i;
- QDEBUG("entering for ifindex %u\n", ifindex);
+ rcu_read_lock();
- /* this only looks like we have to hold the readlock for a way too long
- * time, issue_verdict(), nf_reinject(), ... - but we always only
- * issue NF_DROP, which is processed directly in nf_reinject() */
- read_lock_bh(&instances_lock);
-
- for (i = 0; i < INSTANCE_BUCKETS; i++) {
+ for (i = 0; i < INSTANCE_BUCKETS; i++) {
struct hlist_node *tmp;
struct nfqnl_instance *inst;
struct hlist_head *head = &instance_table[i];
- hlist_for_each_entry(inst, tmp, head, hlist)
+ hlist_for_each_entry_rcu(inst, tmp, head, hlist)
nfqnl_flush(inst, dev_cmp, ifindex);
}
- read_unlock_bh(&instances_lock);
+ rcu_read_unlock();
}
#define RCV_SKB_FAIL(err) do { netlink_ack(skb, nlh, (err)); return; } while (0)
int i;
/* destroy all instances for this pid */
- write_lock_bh(&instances_lock);
- for (i = 0; i < INSTANCE_BUCKETS; i++) {
+ spin_lock(&instances_lock);
+ for (i = 0; i < INSTANCE_BUCKETS; i++) {
struct hlist_node *tmp, *t2;
struct nfqnl_instance *inst;
struct hlist_head *head = &instance_table[i];
__instance_destroy(inst);
}
}
- write_unlock_bh(&instances_lock);
+ spin_unlock(&instances_lock);
}
return NOTIFY_DONE;
}
struct nf_queue_entry *entry;
int err;
- queue = instance_lookup_get(queue_num);
- if (!queue)
- return -ENODEV;
+ rcu_read_lock();
+ queue = instance_lookup(queue_num);
+ if (!queue) {
+ err = -ENODEV;
+ goto err_out_unlock;
+ }
if (queue->peer_pid != NETLINK_CB(skb).pid) {
err = -EPERM;
- goto err_out_put;
+ goto err_out_unlock;
}
if (!nfqa[NFQA_VERDICT_HDR]) {
err = -EINVAL;
- goto err_out_put;
+ goto err_out_unlock;
}
vhdr = nla_data(nfqa[NFQA_VERDICT_HDR]);
if ((verdict & NF_VERDICT_MASK) > NF_MAX_VERDICT) {
err = -EINVAL;
- goto err_out_put;
+ goto err_out_unlock;
}
entry = find_dequeue_entry(queue, ntohl(vhdr->id));
if (entry == NULL) {
err = -ENOENT;
- goto err_out_put;
+ goto err_out_unlock;
}
+ rcu_read_unlock();
if (nfqa[NFQA_PAYLOAD]) {
if (nfqnl_mangle(nla_data(nfqa[NFQA_PAYLOAD]),
}
if (nfqa[NFQA_MARK])
- entry->skb->mark = ntohl(*(__be32 *)
- nla_data(nfqa[NFQA_MARK]));
+ entry->skb->mark = ntohl(nla_get_be32(nfqa[NFQA_MARK]));
nf_reinject(entry, verdict);
- instance_put(queue);
return 0;
-err_out_put:
- instance_put(queue);
+err_out_unlock:
+ rcu_read_unlock();
return err;
}
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);
struct nfqnl_instance *queue;
+ struct nfqnl_msg_config_cmd *cmd = NULL;
int ret = 0;
- QDEBUG("entering for msg %u\n", NFNL_MSG_TYPE(nlh->nlmsg_type));
-
- queue = instance_lookup_get(queue_num);
if (nfqa[NFQA_CFG_CMD]) {
- struct nfqnl_msg_config_cmd *cmd;
cmd = nla_data(nfqa[NFQA_CFG_CMD]);
- QDEBUG("found CFG_CMD\n");
+ /* Commands without queue context - might sleep */
switch (cmd->command) {
- case NFQNL_CFG_CMD_BIND:
- if (queue)
- return -EBUSY;
+ case NFQNL_CFG_CMD_PF_BIND:
+ return nf_register_queue_handler(ntohs(cmd->pf),
+ &nfqh);
+ case NFQNL_CFG_CMD_PF_UNBIND:
+ return nf_unregister_queue_handler(ntohs(cmd->pf),
+ &nfqh);
+ }
+ }
+
+ rcu_read_lock();
+ queue = instance_lookup(queue_num);
+ if (queue && queue->peer_pid != NETLINK_CB(skb).pid) {
+ ret = -EPERM;
+ goto err_out_unlock;
+ }
+ if (cmd != NULL) {
+ switch (cmd->command) {
+ case NFQNL_CFG_CMD_BIND:
+ if (queue) {
+ ret = -EBUSY;
+ goto err_out_unlock;
+ }
queue = instance_create(queue_num, NETLINK_CB(skb).pid);
- if (!queue)
- return -EINVAL;
+ if (IS_ERR(queue)) {
+ ret = PTR_ERR(queue);
+ goto err_out_unlock;
+ }
break;
case NFQNL_CFG_CMD_UNBIND:
- if (!queue)
- return -ENODEV;
-
- if (queue->peer_pid != NETLINK_CB(skb).pid) {
- ret = -EPERM;
- goto out_put;
+ if (!queue) {
+ ret = -ENODEV;
+ goto err_out_unlock;
}
-
instance_destroy(queue);
break;
case NFQNL_CFG_CMD_PF_BIND:
- QDEBUG("registering queue handler for pf=%u\n",
- ntohs(cmd->pf));
- ret = nf_register_queue_handler(ntohs(cmd->pf), &nfqh);
- break;
case NFQNL_CFG_CMD_PF_UNBIND:
- QDEBUG("unregistering queue handler for pf=%u\n",
- ntohs(cmd->pf));
- ret = nf_unregister_queue_handler(ntohs(cmd->pf), &nfqh);
break;
default:
- ret = -EINVAL;
+ ret = -ENOTSUPP;
break;
}
- } else {
- if (!queue) {
- QDEBUG("no config command, and no instance ENOENT\n");
- ret = -ENOENT;
- goto out_put;
- }
-
- if (queue->peer_pid != NETLINK_CB(skb).pid) {
- QDEBUG("no config command, and wrong pid\n");
- ret = -EPERM;
- goto out_put;
- }
}
if (nfqa[NFQA_CFG_PARAMS]) {
struct nfqnl_msg_config_params *params;
if (!queue) {
- ret = -ENOENT;
- goto out_put;
+ ret = -ENODEV;
+ goto err_out_unlock;
}
params = nla_data(nfqa[NFQA_CFG_PARAMS]);
nfqnl_set_mode(queue, params->copy_mode,
if (nfqa[NFQA_CFG_QUEUE_MAXLEN]) {
__be32 *queue_maxlen;
+
+ if (!queue) {
+ ret = -ENODEV;
+ goto err_out_unlock;
+ }
queue_maxlen = nla_data(nfqa[NFQA_CFG_QUEUE_MAXLEN]);
spin_lock_bh(&queue->lock);
queue->queue_maxlen = ntohl(*queue_maxlen);
spin_unlock_bh(&queue->lock);
}
-out_put:
- instance_put(queue);
+err_out_unlock:
+ rcu_read_unlock();
return ret;
}
}
static void *seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(instances_lock)
{
- read_lock_bh(&instances_lock);
+ spin_lock(&instances_lock);
return get_idx(seq, *pos);
}
}
static void seq_stop(struct seq_file *s, void *v)
+ __releases(instances_lock)
{
- read_unlock_bh(&instances_lock);
+ spin_unlock(&instances_lock);
}
static int seq_show(struct seq_file *s, void *v)
inst->peer_pid, inst->queue_total,
inst->copy_mode, inst->copy_range,
inst->queue_dropped, inst->queue_user_dropped,
- inst->id_sequence,
- atomic_read(&inst->use));
+ inst->id_sequence, 1);
}
static const struct seq_operations nfqnl_seq_ops = {
static int __init nfnetlink_queue_init(void)
{
int i, status = -ENOMEM;
-#ifdef CONFIG_PROC_FS
- struct proc_dir_entry *proc_nfqueue;
-#endif
for (i = 0; i < INSTANCE_BUCKETS; i++)
INIT_HLIST_HEAD(&instance_table[i]);
}
#ifdef CONFIG_PROC_FS
- proc_nfqueue = create_proc_entry("nfnetlink_queue", 0440,
- proc_net_netfilter);
- if (!proc_nfqueue)
+ if (!proc_create("nfnetlink_queue", 0440,
+ proc_net_netfilter, &nfqnl_file_ops))
goto cleanup_subsys;
- proc_nfqueue->proc_fops = &nfqnl_file_ops;
#endif
register_netdevice_notifier(&nfqnl_dev_notifier);
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