-diff -uNr linux-3.5/drivers/net/imq.c linux-3.5-imq/drivers/net/imq.c
---- linux-3.5/drivers/net/imq.c 1970-01-01 02:00:00.000000000 +0200
-+++ linux-3.5-imq/drivers/net/imq.c 2012-07-25 12:31:59.709321554 +0300
-@@ -0,0 +1,857 @@
+diff -Naupr linux-4.10_orig/drivers/net/imq.c linux-4.10/drivers/net/imq.c
+--- linux-4.10_orig/drivers/net/imq.c 1970-01-01 07:00:00.000000000 +0700
++++ linux-4.10/drivers/net/imq.c 2017-02-28 19:03:58.883221583 +0700
+@@ -0,0 +1,945 @@
+/*
+ * Pseudo-driver for the intermediate queue device.
+ *
+ *
+ * The first version was written by Martin Devera, <devik@cdi.cz>
+ *
-+ * Credits: Jan Rafaj <imq2t@cedric.vabo.cz>
-+ * - Update patch to 2.4.21
-+ * Sebastian Strollo <sstrollo@nortelnetworks.com>
-+ * - Fix "Dead-loop on netdevice imq"-issue
-+ * Marcel Sebek <sebek64@post.cz>
-+ * - Update to 2.6.2-rc1
-+ *
-+ * After some time of inactivity there is a group taking care
-+ * of IMQ again: http://www.linuximq.net
-+ *
-+ *
-+ * 2004/06/30 - New version of IMQ patch to kernels <=2.6.7
-+ * including the following changes:
-+ *
-+ * - Correction of ipv6 support "+"s issue (Hasso Tepper)
-+ * - Correction of imq_init_devs() issue that resulted in
-+ * kernel OOPS unloading IMQ as module (Norbert Buchmuller)
-+ * - Addition of functionality to choose number of IMQ devices
-+ * during kernel config (Andre Correa)
-+ * - Addition of functionality to choose how IMQ hooks on
-+ * PRE and POSTROUTING (after or before NAT) (Andre Correa)
-+ * - Cosmetic corrections (Norbert Buchmuller) (Andre Correa)
-+ *
-+ *
-+ * 2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were
-+ * released with almost no problems. 2.6.14-x was released
-+ * with some important changes: nfcache was removed; After
-+ * some weeks of trouble we figured out that some IMQ fields
-+ * in skb were missing in skbuff.c - skb_clone and copy_skb_header.
-+ * These functions are correctly patched by this new patch version.
-+ *
-+ * Thanks for all who helped to figure out all the problems with
-+ * 2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX,
-+ * Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully
-+ * I didn't forget anybody). I apologize again for my lack of time.
-+ *
-+ *
-+ * 2008/06/17 - 2.6.25 - Changed imq.c to use qdisc_run() instead
-+ * of qdisc_restart() and moved qdisc_run() to tasklet to avoid
-+ * recursive locking. New initialization routines to fix 'rmmod' not
-+ * working anymore. Used code from ifb.c. (Jussi Kivilinna)
-+ *
-+ * 2008/08/06 - 2.6.26 - (JK)
-+ * - Replaced tasklet with 'netif_schedule()'.
-+ * - Cleaned up and added comments for imq_nf_queue().
-+ *
-+ * 2009/04/12
-+ * - Add skb_save_cb/skb_restore_cb helper functions for backuping
-+ * control buffer. This is needed because qdisc-layer on kernels
-+ * 2.6.27 and newer overwrite control buffer. (Jussi Kivilinna)
-+ * - Add better locking for IMQ device. Hopefully this will solve
-+ * SMP issues. (Jussi Kivilinna)
-+ * - Port to 2.6.27
-+ * - Port to 2.6.28
-+ * - Port to 2.6.29 + fix rmmod not working
-+ *
-+ * 2009/04/20 - (Jussi Kivilinna)
-+ * - Use netdevice feature flags to avoid extra packet handling
-+ * by core networking layer and possibly increase performance.
-+ *
-+ * 2009/09/26 - (Jussi Kivilinna)
-+ * - Add imq_nf_reinject_lockless to fix deadlock with
-+ * imq_nf_queue/imq_nf_reinject.
-+ *
-+ * 2009/12/08 - (Jussi Kivilinna)
-+ * - Port to 2.6.32
-+ * - Add check for skb->nf_queue_entry==NULL in imq_dev_xmit()
-+ * - Also add better error checking for skb->nf_queue_entry usage
-+ *
-+ * 2010/02/25 - (Jussi Kivilinna)
-+ * - Port to 2.6.33
-+ *
-+ * 2010/08/15 - (Jussi Kivilinna)
-+ * - Port to 2.6.35
-+ * - Simplify hook registration by using nf_register_hooks.
-+ * - nf_reinject doesn't need spinlock around it, therefore remove
-+ * imq_nf_reinject function. Other nf_reinject users protect
-+ * their own data with spinlock. With IMQ however all data is
-+ * needed is stored per skbuff, so no locking is needed.
-+ * - Changed IMQ to use 'separate' NF_IMQ_QUEUE instead of
-+ * NF_QUEUE, this allows working coexistance of IMQ and other
-+ * NF_QUEUE users.
-+ * - Make IMQ multi-queue. Number of IMQ device queues can be
-+ * increased with 'numqueues' module parameters. Default number
-+ * of queues is 1, in other words by default IMQ works as
-+ * single-queue device. Multi-queue selection is based on
-+ * IFB multi-queue patch by Changli Gao <xiaosuo@gmail.com>.
-+ *
-+ * 2011/03/18 - (Jussi Kivilinna)
-+ * - Port to 2.6.38
-+ *
-+ * 2011/07/12 - (syoder89@gmail.com)
-+ * - Crash fix that happens when the receiving interface has more
-+ * than one queue (add missing skb_set_queue_mapping in
-+ * imq_select_queue).
-+ *
-+ * 2011/07/26 - (Jussi Kivilinna)
-+ * - Add queue mapping checks for packets exiting IMQ.
-+ * - Port to 3.0
-+ *
-+ * 2011/08/16 - (Jussi Kivilinna)
-+ * - Clear IFF_TX_SKB_SHARING flag that was added for linux 3.0.2
-+ *
-+ * 2011/11/03 - Germano Michel <germanomichel@gmail.com>
-+ * - Fix IMQ for net namespaces
-+ *
-+ * 2011/11/04 - Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
-+ * - Port to 3.1
-+ * - Clean-up, move 'get imq device pointer by imqX name' to
-+ * separate function from imq_nf_queue().
-+ *
-+ * 2012/01/05 - Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
-+ * - Port to 3.2
-+ *
-+ * 2012/03/19 - Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
-+ * - Port to 3.3
-+ *
-+ * Also, many thanks to pablo Sebastian Greco for making the initial
-+ * patch and to those who helped the testing.
-+ *
-+ * More info at: http://www.linuximq.net/ (Andre Correa)
++ * See Credits.txt
+ */
+
+#include <linux/module.h>
+ {
+ /* imq_ingress_ipv4 */
+ .hook = imq_nf_hook,
-+ .owner = THIS_MODULE,
+ .pf = PF_INET,
+ .hooknum = NF_INET_PRE_ROUTING,
+#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
+ {
+ /* imq_egress_ipv4 */
+ .hook = imq_nf_hook,
-+ .owner = THIS_MODULE,
+ .pf = PF_INET,
+ .hooknum = NF_INET_POST_ROUTING,
+#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
+ {
+ /* imq_ingress_ipv6 */
+ .hook = imq_nf_hook,
-+ .owner = THIS_MODULE,
+ .pf = PF_INET6,
+ .hooknum = NF_INET_PRE_ROUTING,
+#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
+ {
+ /* imq_egress_ipv6 */
+ .hook = imq_nf_hook,
-+ .owner = THIS_MODULE,
+ .pf = PF_INET6,
+ .hooknum = NF_INET_POST_ROUTING,
+#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
+#define IMQ_MAX_QUEUES 32
+static int numqueues = 1;
+static u32 imq_hashrnd;
++static int imq_dev_accurate_stats = 1;
+
+static inline __be16 pppoe_proto(const struct sk_buff *skb)
+{
+
+ addr1 = iph->daddr.s6_addr32[3];
+ addr2 = iph->saddr.s6_addr32[3];
-+ ihl = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &ip_proto, &fo);
++ ihl = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &ip_proto,
++ &fo);
+ if (unlikely(ihl < 0))
+ goto other;
+
+{
+ struct nf_queue_entry *entry = skb->nf_queue_entry;
+
++ rcu_read_lock();
++
+ skb->nf_queue_entry = NULL;
-+ dev->trans_start = jiffies;
++ netif_trans_update(dev);
+
+ dev->stats.tx_bytes += skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_dropped++;
+ dev_kfree_skb(skb);
+
++ rcu_read_unlock();
+ return NETDEV_TX_OK;
+ }
+
+
+ nf_reinject(entry, NF_ACCEPT);
+
++ rcu_read_unlock();
+ return NETDEV_TX_OK;
+}
+
+ return dev;
+}
+
++static struct nf_queue_entry *nf_queue_entry_dup(struct nf_queue_entry *e)
++{
++ struct nf_queue_entry *entry = kmemdup(e, e->size, GFP_ATOMIC);
++ if (entry) {
++ nf_queue_entry_get_refs(entry);
++ return entry;
++ }
++ return NULL;
++}
++
++#ifdef CONFIG_BRIDGE_NETFILTER
++/* When called from bridge netfilter, skb->data must point to MAC header
++ * before calling skb_gso_segment(). Else, original MAC header is lost
++ * and segmented skbs will be sent to wrong destination.
++ */
++static void nf_bridge_adjust_skb_data(struct sk_buff *skb)
++{
++ if (skb->nf_bridge)
++ __skb_push(skb, skb->network_header - skb->mac_header);
++}
++
++static void nf_bridge_adjust_segmented_data(struct sk_buff *skb)
++{
++ if (skb->nf_bridge)
++ __skb_pull(skb, skb->network_header - skb->mac_header);
++}
++#else
++#define nf_bridge_adjust_skb_data(s) do {} while (0)
++#define nf_bridge_adjust_segmented_data(s) do {} while (0)
++#endif
++
++static void free_entry(struct nf_queue_entry *entry)
++{
++ nf_queue_entry_release_refs(entry);
++ kfree(entry);
++}
++
++static int __imq_nf_queue(struct nf_queue_entry *entry, struct net_device *dev);
++
++static int __imq_nf_queue_gso(struct nf_queue_entry *entry,
++ struct net_device *dev, struct sk_buff *skb)
++{
++ int ret = -ENOMEM;
++ struct nf_queue_entry *entry_seg;
++
++ nf_bridge_adjust_segmented_data(skb);
++
++ if (skb->next == NULL) { /* last packet, no need to copy entry */
++ struct sk_buff *gso_skb = entry->skb;
++ entry->skb = skb;
++ ret = __imq_nf_queue(entry, dev);
++ if (ret)
++ entry->skb = gso_skb;
++ return ret;
++ }
++
++ skb->next = NULL;
++
++ entry_seg = nf_queue_entry_dup(entry);
++ if (entry_seg) {
++ entry_seg->skb = skb;
++ ret = __imq_nf_queue(entry_seg, dev);
++ if (ret)
++ free_entry(entry_seg);
++ }
++ return ret;
++}
++
+static int imq_nf_queue(struct nf_queue_entry *entry, unsigned queue_num)
+{
++ struct sk_buff *skb, *segs;
+ struct net_device *dev;
-+ struct sk_buff *skb_orig, *skb, *skb_shared;
-+ struct Qdisc *q;
-+ struct netdev_queue *txq;
-+ spinlock_t *root_lock;
-+ int users, index;
-+ int retval = -EINVAL;
-+ unsigned int orig_queue_index;
++ unsigned int queued;
++ int index, retval, err;
+
+ index = entry->skb->imq_flags & IMQ_F_IFMASK;
+ if (unlikely(index > numdevs - 1)) {
+ if (net_ratelimit())
-+ printk(KERN_WARNING
-+ "IMQ: invalid device specified, highest is %u\n",
-+ numdevs - 1);
++ pr_warn("IMQ: invalid device specified, highest is %u\n",
++ numdevs - 1);
+ retval = -EINVAL;
-+ goto out;
++ goto out_no_dev;
+ }
+
+ /* check for imq device by index from cache */
+ dev = get_imq_device_by_index(index);
+ if (IS_ERR(dev)) {
+ retval = PTR_ERR(dev);
-+ goto out;
++ goto out_no_dev;
+ }
+ }
+
+ if (unlikely(!(dev->flags & IFF_UP))) {
+ entry->skb->imq_flags = 0;
-+ nf_reinject(entry, NF_ACCEPT);
-+ retval = 0;
-+ goto out;
++ retval = -ECANCELED;
++ goto out_no_dev;
++ }
++
++ /* Since 3.10.x, GSO handling moved here as result of upstream commit
++ * a5fedd43d5f6c94c71053a66e4c3d2e35f1731a2 (netfilter: move
++ * skb_gso_segment into nfnetlink_queue module).
++ *
++ * Following code replicates the gso handling from
++ * 'net/netfilter/nfnetlink_queue_core.c':nfqnl_enqueue_packet().
++ */
++
++ skb = entry->skb;
++
++ switch (entry->state.pf) {
++ case NFPROTO_IPV4:
++ skb->protocol = htons(ETH_P_IP);
++ break;
++ case NFPROTO_IPV6:
++ skb->protocol = htons(ETH_P_IPV6);
++ break;
+ }
++
++ if (!skb_is_gso(entry->skb))
++ return __imq_nf_queue(entry, dev);
++
++ nf_bridge_adjust_skb_data(skb);
++ segs = skb_gso_segment(skb, 0);
++ /* Does not use PTR_ERR to limit the number of error codes that can be
++ * returned by nf_queue. For instance, callers rely on -ECANCELED to
++ * mean 'ignore this hook'.
++ */
++ err = -ENOBUFS;
++ if (IS_ERR(segs))
++ goto out_err;
++ queued = 0;
++ err = 0;
++ do {
++ struct sk_buff *nskb = segs->next;
++ if (nskb && nskb->next)
++ nskb->cb_next = NULL;
++ if (err == 0)
++ err = __imq_nf_queue_gso(entry, dev, segs);
++ if (err == 0)
++ queued++;
++ else
++ kfree_skb(segs);
++ segs = nskb;
++ } while (segs);
++
++ if (queued) {
++ if (err) /* some segments are already queued */
++ free_entry(entry);
++ kfree_skb(skb);
++ return 0;
++ }
++
++out_err:
++ nf_bridge_adjust_segmented_data(skb);
++ retval = err;
++out_no_dev:
++ return retval;
++}
++
++static int __imq_nf_queue(struct nf_queue_entry *entry, struct net_device *dev)
++{
++ struct sk_buff *skb_orig, *skb, *skb_shared, *skb_popd;
++ struct Qdisc *q;
++ struct sk_buff *to_free = NULL;
++ struct netdev_queue *txq;
++ spinlock_t *root_lock;
++ int users;
++ int retval = -EINVAL;
++ unsigned int orig_queue_index;
++
+ dev->last_rx = jiffies;
+
+ skb = entry->skb;
+ retval = -ENOMEM;
+ goto out;
+ }
++ skb->cb_next = NULL;
+ entry->skb = skb;
+ }
+
-+ skb->nf_queue_entry = entry;
-+
+ dev->stats.rx_bytes += skb->len;
+ dev->stats.rx_packets++;
+
+ if (unlikely(!q->enqueue))
+ goto packet_not_eaten_by_imq_dev;
+
++ skb->nf_queue_entry = entry;
+ root_lock = qdisc_lock(q);
+ spin_lock(root_lock);
+
+ users = atomic_read(&skb->users);
+
+ skb_shared = skb_get(skb); /* increase reference count by one */
-+ skb_save_cb(skb_shared); /* backup skb->cb, as qdisc layer will
-+ overwrite it */
-+ qdisc_enqueue_root(skb_shared, q); /* might kfree_skb */
+
++ /* backup skb->cb, as qdisc layer will overwrite it */
++ skb_save_cb(skb_shared);
++ qdisc_enqueue_root(skb_shared, q, &to_free); /* might kfree_skb */
+ if (likely(atomic_read(&skb_shared->users) == users + 1)) {
++ bool validate;
++
+ kfree_skb(skb_shared); /* decrease reference count by one */
+
+ skb->destructor = &imq_skb_destructor;
+
++ skb_popd = qdisc_dequeue_skb(q, &validate);
++
+ /* cloned? */
+ if (unlikely(skb_orig))
+ kfree_skb(skb_orig); /* free original */
+
+ spin_unlock(root_lock);
-+ rcu_read_unlock_bh();
+
++#if 0
+ /* schedule qdisc dequeue */
+ __netif_schedule(q);
-+
++#else
++ if (likely(skb_popd)) {
++ /* Note that we validate skb (GSO, checksum, ...) outside of locks */
++ if (validate)
++ skb_popd = validate_xmit_skb_list(skb_popd, dev);
++
++ if (skb_popd) {
++ int dummy_ret;
++ int cpu = smp_processor_id(); /* ok because BHs are off */
++
++ txq = skb_get_tx_queue(dev, skb_popd);
++ /*
++ IMQ device will not be frozen or stoped, and it always be successful.
++ So we need not check its status and return value to accelerate.
++ */
++ if (imq_dev_accurate_stats && txq->xmit_lock_owner != cpu) {
++ HARD_TX_LOCK(dev, txq, cpu);
++ if (!netif_xmit_frozen_or_stopped(txq)) {
++ dev_hard_start_xmit(skb_popd, dev, txq, &dummy_ret);
++ }
++ HARD_TX_UNLOCK(dev, txq);
++ } else {
++ if (!netif_xmit_frozen_or_stopped(txq)) {
++ dev_hard_start_xmit(skb_popd, dev, txq, &dummy_ret);
++ }
++ }
++ }
++ } else {
++ /* No ready skb, then schedule it */
++ __netif_schedule(q);
++ }
++#endif
++ rcu_read_unlock_bh();
+ retval = 0;
+ goto out;
+ } else {
+ skb_restore_cb(skb_shared); /* restore skb->cb */
+ skb->nf_queue_entry = NULL;
-+ /* qdisc dropped packet and decreased skb reference count of
++ /*
++ * qdisc dropped packet and decreased skb reference count of
+ * skb, so we don't really want to and try refree as that would
-+ * actually destroy the skb. */
++ * actually destroy the skb.
++ */
+ spin_unlock(root_lock);
+ goto packet_not_eaten_by_imq_dev;
+ }
+ }
+ retval = -1;
+out:
++ if (unlikely(to_free)) {
++ kfree_skb_list(to_free);
++ }
+ return retval;
+}
-+
-+static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff *pskb,
-+ const struct net_device *indev,
-+ const struct net_device *outdev,
-+ int (*okfn)(struct sk_buff *))
++static unsigned int imq_nf_hook(void *priv,
++ struct sk_buff *skb,
++ const struct nf_hook_state *state)
+{
-+ return (pskb->imq_flags & IMQ_F_ENQUEUE) ? NF_IMQ_QUEUE : NF_ACCEPT;
++ return (skb->imq_flags & IMQ_F_ENQUEUE) ? NF_IMQ_QUEUE : NF_ACCEPT;
+}
+
+static int imq_close(struct net_device *dev)
+ return 0;
+}
+
++static struct device_type imq_device_type = {
++ .name = "imq",
++};
++
+static const struct net_device_ops imq_netdev_ops = {
+ .ndo_open = imq_open,
+ .ndo_stop = imq_close,
+ }
+ return 0;
+end:
-+ printk(KERN_WARNING "IMQ: imq_validate failed (%d)\n", ret);
++ pr_warn("IMQ: imq_validate failed (%d)\n", ret);
+ return ret;
+}
+
+};
+
+static const struct nf_queue_handler imq_nfqh = {
-+ .name = "imq",
+ .outfn = imq_nf_queue,
+};
+
+ return ret;
+}
+
++#ifdef CONFIG_LOCKDEP
++ static struct lock_class_key imq_netdev_addr_lock_key;
++
++ static void __init imq_dev_set_lockdep_one(struct net_device *dev,
++ struct netdev_queue *txq, void *arg)
++ {
++ /*
++ * the IMQ transmit locks can be taken recursively,
++ * for example with one IMQ rule for input- and one for
++ * output network devices in iptables!
++ * until we find a better solution ignore them.
++ */
++ lockdep_set_novalidate_class(&txq->_xmit_lock);
++ }
++
++ static void imq_dev_set_lockdep_class(struct net_device *dev)
++ {
++ lockdep_set_class_and_name(&dev->addr_list_lock,
++ &imq_netdev_addr_lock_key, "_xmit_addr_IMQ");
++ netdev_for_each_tx_queue(dev, imq_dev_set_lockdep_one, NULL);
++}
++#else
++ static inline void imq_dev_set_lockdep_class(struct net_device *dev)
++ {
++ }
++#endif
++
+static int __init imq_init_one(int index)
+{
+ struct net_device *dev;
+ int ret;
+
-+ dev = alloc_netdev_mq(0, "imq%d", imq_setup, numqueues);
++ dev = alloc_netdev_mq(0, "imq%d", NET_NAME_UNKNOWN, imq_setup, numqueues);
+ if (!dev)
+ return -ENOMEM;
+
+ goto fail;
+
+ dev->rtnl_link_ops = &imq_link_ops;
++ SET_NETDEV_DEVTYPE(dev, &imq_device_type);
+ ret = register_netdevice(dev);
+ if (ret < 0)
+ goto fail;
+
++ imq_dev_set_lockdep_class(dev);
++
+ return 0;
+fail:
+ free_netdev(dev);
+ int err, i;
+
+ if (numdevs < 1 || numdevs > IMQ_MAX_DEVS) {
-+ printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n",
++ pr_err("IMQ: numdevs has to be betweed 1 and %u\n",
+ IMQ_MAX_DEVS);
+ return -EINVAL;
+ }
+
+ if (numqueues < 1 || numqueues > IMQ_MAX_QUEUES) {
-+ printk(KERN_ERR "IMQ: numqueues has to be betweed 1 and %u\n",
++ pr_err("IMQ: numqueues has to be betweed 1 and %u\n",
+ IMQ_MAX_QUEUES);
+ return -EINVAL;
+ }
+
+ err = imq_init_devs();
+ if (err) {
-+ printk(KERN_ERR "IMQ: Error trying imq_init_devs(net)\n");
++ pr_err("IMQ: Error trying imq_init_devs(net)\n");
+ return err;
+ }
+
+ err = imq_init_hooks();
+ if (err) {
-+ printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n");
++ pr_err(KERN_ERR "IMQ: Error trying imq_init_hooks()\n");
+ rtnl_link_unregister(&imq_link_ops);
+ memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
+ return err;
+ }
+
-+ printk(KERN_INFO "IMQ driver loaded successfully. "
-+ "(numdevs = %d, numqueues = %d)\n", numdevs, numqueues);
++ pr_info("IMQ driver loaded successfully. (numdevs = %d, numqueues = %d, imq_dev_accurate_stats = %d)\n",
++ numdevs, numqueues, imq_dev_accurate_stats);
+
+#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
-+ printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n");
++ pr_info("\tHooking IMQ before NAT on PREROUTING.\n");
+#else
-+ printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n");
++ pr_info("\tHooking IMQ after NAT on PREROUTING.\n");
+#endif
+#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB)
-+ printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n");
++ pr_info("\tHooking IMQ before NAT on POSTROUTING.\n");
+#else
-+ printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n");
++ pr_info("\tHooking IMQ after NAT on POSTROUTING.\n");
+#endif
+
+ return 0;
+{
+ imq_unhook();
+ imq_cleanup_devs();
-+ printk(KERN_INFO "IMQ driver unloaded successfully.\n");
++ pr_info("IMQ driver unloaded successfully.\n");
+}
+
+module_init(imq_init_module);
+
+module_param(numdevs, int, 0);
+module_param(numqueues, int, 0);
-+MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will "
-+ "be created)");
++module_param(imq_dev_accurate_stats, int, 0);
++MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will be created)");
+MODULE_PARM_DESC(numqueues, "number of queues per IMQ device");
-+MODULE_AUTHOR("http://www.linuximq.net");
-+MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See "
-+ "http://www.linuximq.net/ for more information.");
++MODULE_PARM_DESC(imq_dev_accurate_stats, "Notify if need the accurate imq device stats");
++
++MODULE_AUTHOR("https://github.com/imq/linuximq");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See https://github.com/imq/linuximq/wiki for more information.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("imq");
-+
-diff -uNr linux-3.5/drivers/net/Kconfig linux-3.5-imq/drivers/net/Kconfig
---- linux-3.5/drivers/net/Kconfig 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/drivers/net/Kconfig 2012-07-25 12:31:59.709321554 +0300
-@@ -192,6 +192,125 @@
+diff -Naupr linux-4.10_orig/drivers/net/Kconfig linux-4.10/drivers/net/Kconfig
+--- linux-4.10_orig/drivers/net/Kconfig 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/drivers/net/Kconfig 2017-02-28 18:44:55.978280593 +0700
+@@ -260,6 +260,125 @@ config RIONET_RX_SIZE
depends on RIONET
default "128"
+ and distribute bandwidth among them. Iptables is used to specify
+ through which IMQ device, if any, packets travel.
+
-+ More information at: http://www.linuximq.net/
++ More information at: https://github.com/imq/linuximq
+
+ To compile this driver as a module, choose M here: the module
+ will be called imq. If unsure, say N.
+ This settings are specially usefull when trying to use IMQ
+ to shape NATed clients.
+
-+ More information can be found at: www.linuximq.net
++ More information can be found at: https://github.com/imq/linuximq
+
+ If not sure leave the default settings alone.
+
+ PREROUTING: After NAT
+ POSTROUTING: After NAT
+
-+ More information can be found at: www.linuximq.net
++ More information can be found at: https://github.com/imq/linuximq
+
+ If not sure leave the default settings alone.
+
+ PREROUTING: After NAT
+ POSTROUTING: Before NAT
+
-+ More information can be found at: www.linuximq.net
++ More information can be found at: https://github.com/imq/linuximq
+
+ If not sure leave the default settings alone.
+
+ PREROUTING: Before NAT
+ POSTROUTING: After NAT
+
-+ More information can be found at: www.linuximq.net
++ More information can be found at: https://github.com/imq/linuximq
+
+ If not sure leave the default settings alone.
+
+ PREROUTING: Before NAT
+ POSTROUTING: Before NAT
+
-+ More information can be found at: www.linuximq.net
++ More information can be found at: https://github.com/imq/linuximq
+
+ If not sure leave the default settings alone.
+
+
+ The default value is 16.
+
-+ More information can be found at: www.linuximq.net
++ More information can be found at: https://github.com/imq/linuximq
+
+ If not sure leave the default settings alone.
+
config TUN
tristate "Universal TUN/TAP device driver support"
- select CRC32
-diff -uNr linux-3.5/drivers/net/Makefile linux-3.5-imq/drivers/net/Makefile
---- linux-3.5/drivers/net/Makefile 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/drivers/net/Makefile 2012-07-25 12:31:59.709321554 +0300
-@@ -9,6 +9,7 @@
- obj-$(CONFIG_DUMMY) += dummy.o
+ depends on INET
+diff -Naupr linux-4.10_orig/drivers/net/Makefile linux-4.10/drivers/net/Makefile
+--- linux-4.10_orig/drivers/net/Makefile 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/drivers/net/Makefile 2017-02-28 18:44:55.978280593 +0700
+@@ -11,6 +11,7 @@ obj-$(CONFIG_DUMMY) += dummy.o
obj-$(CONFIG_EQUALIZER) += eql.o
obj-$(CONFIG_IFB) += ifb.o
+ obj-$(CONFIG_MACSEC) += macsec.o
+obj-$(CONFIG_IMQ) += imq.o
obj-$(CONFIG_MACVLAN) += macvlan.o
obj-$(CONFIG_MACVTAP) += macvtap.o
obj-$(CONFIG_MII) += mii.o
-diff -uNr linux-3.5/include/linux/imq.h linux-3.5-imq/include/linux/imq.h
---- linux-3.5/include/linux/imq.h 1970-01-01 02:00:00.000000000 +0200
-+++ linux-3.5-imq/include/linux/imq.h 2012-07-25 12:31:59.709321554 +0300
+diff -Naupr linux-4.10_orig/include/linux/imq.h linux-4.10/include/linux/imq.h
+--- linux-4.10_orig/include/linux/imq.h 1970-01-01 07:00:00.000000000 +0700
++++ linux-4.10/include/linux/imq.h 2017-02-28 18:44:55.978280593 +0700
@@ -0,0 +1,13 @@
+#ifndef _IMQ_H
+#define _IMQ_H
+
+#endif /* _IMQ_H */
+
-diff -uNr linux-3.5/include/linux/netfilter/xt_IMQ.h linux-3.5-imq/include/linux/netfilter/xt_IMQ.h
---- linux-3.5/include/linux/netfilter/xt_IMQ.h 1970-01-01 02:00:00.000000000 +0200
-+++ linux-3.5-imq/include/linux/netfilter/xt_IMQ.h 2012-07-25 12:31:59.709321554 +0300
+diff -Naupr linux-4.10_orig/include/linux/netdevice.h linux-4.10/include/linux/netdevice.h
+--- linux-4.10_orig/include/linux/netdevice.h 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/include/linux/netdevice.h 2017-02-28 18:44:55.978280593 +0700
+@@ -3604,6 +3604,19 @@ static inline void netif_tx_unlock_bh(st
+ } \
+ }
+
++#define HARD_TX_LOCK_BH(dev, txq) { \
++ if ((dev->features & NETIF_F_LLTX) == 0) { \
++ __netif_tx_lock_bh(txq); \
++ } \
++}
++
++#define HARD_TX_UNLOCK_BH(dev, txq) { \
++ if ((dev->features & NETIF_F_LLTX) == 0) { \
++ __netif_tx_unlock_bh(txq); \
++ } \
++}
++
++
+ static inline void netif_tx_disable(struct net_device *dev)
+ {
+ unsigned int i;
+diff -Naupr linux-4.10_orig/include/linux/netfilter/xt_IMQ.h linux-4.10/include/linux/netfilter/xt_IMQ.h
+--- linux-4.10_orig/include/linux/netfilter/xt_IMQ.h 1970-01-01 07:00:00.000000000 +0700
++++ linux-4.10/include/linux/netfilter/xt_IMQ.h 2017-02-28 18:44:55.981613941 +0700
@@ -0,0 +1,9 @@
+#ifndef _XT_IMQ_H
+#define _XT_IMQ_H
+
+#endif /* _XT_IMQ_H */
+
-diff -uNr linux-3.5/include/uapi/linux/netfilter.h linux-3.5-imq/include/uapi/linux/netfilter.h
---- linux-3.5/include/uapi/linux/netfilter.h 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/include/uapi/linux/netfilter.h 2012-07-25 12:31:59.709321554 +0300
-@@ -22,7 +22,8 @@
- #define NF_QUEUE 3
- #define NF_REPEAT 4
- #define NF_STOP 5
--#define NF_MAX_VERDICT NF_STOP
-+#define NF_IMQ_QUEUE 6
-+#define NF_MAX_VERDICT NF_IMQ_QUEUE
-
- /* we overload the higher bits for encoding auxiliary data such as the queue
- * number or errno values. Not nice, but better than additional function
-diff -uNr linux-3.5/include/linux/netfilter_ipv4/ipt_IMQ.h linux-3.5-imq/include/linux/netfilter_ipv4/ipt_IMQ.h
---- linux-3.5/include/linux/netfilter_ipv4/ipt_IMQ.h 1970-01-01 02:00:00.000000000 +0200
-+++ linux-3.5-imq/include/linux/netfilter_ipv4/ipt_IMQ.h 2012-07-25 12:31:59.709321554 +0300
+diff -Naupr linux-4.10_orig/include/linux/netfilter_ipv4/ipt_IMQ.h linux-4.10/include/linux/netfilter_ipv4/ipt_IMQ.h
+--- linux-4.10_orig/include/linux/netfilter_ipv4/ipt_IMQ.h 1970-01-01 07:00:00.000000000 +0700
++++ linux-4.10/include/linux/netfilter_ipv4/ipt_IMQ.h 2017-02-28 18:44:55.981613941 +0700
@@ -0,0 +1,10 @@
+#ifndef _IPT_IMQ_H
+#define _IPT_IMQ_H
+
+#endif /* _IPT_IMQ_H */
+
-diff -uNr linux-3.5/include/linux/netfilter_ipv6/ip6t_IMQ.h linux-3.5-imq/include/linux/netfilter_ipv6/ip6t_IMQ.h
---- linux-3.5/include/linux/netfilter_ipv6/ip6t_IMQ.h 1970-01-01 02:00:00.000000000 +0200
-+++ linux-3.5-imq/include/linux/netfilter_ipv6/ip6t_IMQ.h 2012-07-25 12:31:59.709321554 +0300
+diff -Naupr linux-4.10_orig/include/linux/netfilter_ipv6/ip6t_IMQ.h linux-4.10/include/linux/netfilter_ipv6/ip6t_IMQ.h
+--- linux-4.10_orig/include/linux/netfilter_ipv6/ip6t_IMQ.h 1970-01-01 07:00:00.000000000 +0700
++++ linux-4.10/include/linux/netfilter_ipv6/ip6t_IMQ.h 2017-02-28 18:44:55.981613941 +0700
@@ -0,0 +1,10 @@
+#ifndef _IP6T_IMQ_H
+#define _IP6T_IMQ_H
+
+#endif /* _IP6T_IMQ_H */
+
-diff -uNr linux-3.5/include/linux/skbuff.h linux-3.5-imq/include/linux/skbuff.h
---- linux-3.5/include/linux/skbuff.h 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/include/linux/skbuff.h 2012-07-25 12:31:59.712654956 +0300
-@@ -32,6 +32,9 @@
- #include <linux/hrtimer.h>
- #include <linux/dma-mapping.h>
- #include <linux/netdev_features.h>
+diff -Naupr linux-4.10_orig/include/linux/skbuff.h linux-4.10/include/linux/skbuff.h
+--- linux-4.10_orig/include/linux/skbuff.h 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/include/linux/skbuff.h 2017-02-28 18:44:55.981613941 +0700
+@@ -39,6 +39,10 @@
+ #include <linux/in6.h>
+ #include <linux/if_packet.h>
+ #include <net/flow.h>
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+#include <linux/imq.h>
+#endif
++
- /* Don't change this without changing skb_csum_unnecessary! */
- #define CHECKSUM_NONE 0
-@@ -402,6 +405,9 @@
+ /* The interface for checksum offload between the stack and networking drivers
+ * is as follows...
+@@ -661,6 +665,9 @@ struct sk_buff {
* first. This is owned by whoever has the skb queued ATM.
*/
char cb[48] __aligned(8);
+#endif
unsigned long _skb_refdst;
- #ifdef CONFIG_XFRM
-@@ -440,6 +446,9 @@
- #ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
- struct sk_buff *nfct_reasm;
+ void (*destructor)(struct sk_buff *skb);
+@@ -670,6 +677,9 @@ struct sk_buff {
+ #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ struct nf_conntrack *nfct;
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+ struct nf_queue_entry *nf_queue_entry;
++ struct nf_queue_entry *nf_queue_entry;
+#endif
- #ifdef CONFIG_BRIDGE_NETFILTER
+ #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
struct nf_bridge_info *nf_bridge;
#endif
-@@ -471,6 +480,10 @@
- /* 8/10 bit hole (depending on ndisc_nodetype presence) */
- kmemcheck_bitfield_end(flags2);
-
+@@ -750,6 +760,9 @@ struct sk_buff {
+ __u8 offload_fwd_mark:1;
+ #endif
+ /* 2, 4 or 5 bit hole */
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+ __u8 imq_flags:IMQ_F_BITS;
+#endif
-+
- #ifdef CONFIG_NET_DMA
- dma_cookie_t dma_cookie;
- #endif
-@@ -555,6 +568,12 @@
- return (struct rtable *)skb_dst(skb);
- }
+ #ifdef CONFIG_NET_SCHED
+ __u16 tc_index; /* traffic control index */
+@@ -910,6 +923,12 @@ void kfree_skb_list(struct sk_buff *segs
+ void skb_tx_error(struct sk_buff *skb);
+ void consume_skb(struct sk_buff *skb);
+ void __kfree_skb(struct sk_buff *skb);
+
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+extern int skb_save_cb(struct sk_buff *skb);
-+extern int skb_restore_cb(struct sk_buff *skb);
++int skb_save_cb(struct sk_buff *skb);
++int skb_restore_cb(struct sk_buff *skb);
+#endif
+
- extern void kfree_skb(struct sk_buff *skb);
- extern void consume_skb(struct sk_buff *skb);
- extern void __kfree_skb(struct sk_buff *skb);
-@@ -2416,6 +2435,10 @@
- dst->nfct_reasm = src->nfct_reasm;
- nf_conntrack_get_reasm(src->nfct_reasm);
+ extern struct kmem_cache *skbuff_head_cache;
+
+ void kfree_skb_partial(struct sk_buff *skb, bool head_stolen);
+@@ -3607,6 +3626,10 @@ static inline void __nf_copy(struct sk_b
+ if (copy)
+ dst->nfctinfo = src->nfctinfo;
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+ dst->imq_flags = src->imq_flags;
-+ dst->nf_queue_entry = src->nf_queue_entry;
++ dst->imq_flags = src->imq_flags;
++ dst->nf_queue_entry = src->nf_queue_entry;
+#endif
- #ifdef CONFIG_BRIDGE_NETFILTER
+ #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
dst->nf_bridge = src->nf_bridge;
nf_bridge_get(src->nf_bridge);
-diff -uNr linux-3.5/include/net/netfilter/nf_queue.h linux-3.5-imq/include/net/netfilter/nf_queue.h
---- linux-3.5/include/net/netfilter/nf_queue.h 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/include/net/netfilter/nf_queue.h 2012-07-25 12:31:59.715988358 +0300
-@@ -30,5 +30,11 @@
- const struct nf_queue_handler *qh);
- extern void nf_unregister_queue_handlers(const struct nf_queue_handler *qh);
- extern void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
-+extern void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
+diff -Naupr linux-4.10_orig/include/net/netfilter/nf_queue.h linux-4.10/include/net/netfilter/nf_queue.h
+--- linux-4.10_orig/include/net/netfilter/nf_queue.h 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/include/net/netfilter/nf_queue.h 2017-02-28 18:44:55.981613941 +0700
+@@ -31,6 +31,12 @@ struct nf_queue_handler {
+ void nf_register_queue_handler(struct net *net, const struct nf_queue_handler *qh);
+ void nf_unregister_queue_handler(struct net *net);
+ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
++void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
+
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+extern void nf_register_queue_imq_handler(const struct nf_queue_handler *qh);
-+extern void nf_unregister_queue_imq_handler(void);
++void nf_register_queue_imq_handler(const struct nf_queue_handler *qh);
++void nf_unregister_queue_imq_handler(void);
+#endif
- #endif /* _NF_QUEUE_H */
-diff -uNr linux-3.5/net/core/dev.c linux-3.5-imq/net/core/dev.c
---- linux-3.5/net/core/dev.c 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/core/dev.c 2012-07-25 12:31:59.719321759 +0300
-@@ -97,6 +97,9 @@
- #include <net/net_namespace.h>
- #include <net/sock.h>
- #include <linux/rtnetlink.h>
+ void nf_queue_entry_get_refs(struct nf_queue_entry *entry);
+ void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
+diff -Naupr linux-4.10_orig/include/net/pkt_sched.h linux-4.10/include/net/pkt_sched.h
+--- linux-4.10_orig/include/net/pkt_sched.h 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/include/net/pkt_sched.h 2017-02-28 18:44:55.981613941 +0700
+@@ -107,6 +107,8 @@ int sch_direct_xmit(struct sk_buff *skb,
+
+ void __qdisc_run(struct Qdisc *q);
+
++struct sk_buff *qdisc_dequeue_skb(struct Qdisc *q, bool *validate);
++
+ static inline void qdisc_run(struct Qdisc *q)
+ {
+ if (qdisc_run_begin(q))
+diff -Naupr linux-4.10_orig/include/net/sch_generic.h linux-4.10/include/net/sch_generic.h
+--- linux-4.10_orig/include/net/sch_generic.h 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/include/net/sch_generic.h 2017-02-28 18:44:55.981613941 +0700
+@@ -518,6 +518,13 @@ static inline int qdisc_enqueue(struct s
+ return sch->enqueue(skb, sch, to_free);
+ }
+
++static inline int qdisc_enqueue_root(struct sk_buff *skb, struct Qdisc *sch,
++ struct sk_buff **to_free)
++{
++ qdisc_skb_cb(skb)->pkt_len = skb->len;
++ return qdisc_enqueue(skb, sch, to_free) & NET_XMIT_MASK;
++}
++
+ static inline bool qdisc_is_percpu_stats(const struct Qdisc *q)
+ {
+ return q->flags & TCQ_F_CPUSTATS;
+diff -Naupr linux-4.10_orig/include/uapi/linux/netfilter.h linux-4.10/include/uapi/linux/netfilter.h
+--- linux-4.10_orig/include/uapi/linux/netfilter.h 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/include/uapi/linux/netfilter.h 2017-02-28 18:44:55.981613941 +0700
+@@ -14,7 +14,8 @@
+ #define NF_QUEUE 3
+ #define NF_REPEAT 4
+ #define NF_STOP 5 /* Deprecated, for userspace nf_queue compatibility. */
+-#define NF_MAX_VERDICT NF_STOP
++#define NF_IMQ_QUEUE 6
++#define NF_MAX_VERDICT NF_IMQ_QUEUE
+
+ /* we overload the higher bits for encoding auxiliary data such as the queue
+ * number or errno values. Not nice, but better than additional function
+diff -Naupr linux-4.10_orig/net/core/dev.c linux-4.10/net/core/dev.c
+--- linux-4.10_orig/net/core/dev.c 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/core/dev.c 2017-02-28 18:44:55.984947288 +0700
+@@ -140,6 +140,9 @@
+ #include <linux/hrtimer.h>
+ #include <linux/netfilter_ingress.h>
+ #include <linux/crash_dump.h>
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+#include <linux/imq.h>
+#endif
- #include <linux/proc_fs.h>
- #include <linux/seq_file.h>
- #include <linux/stat.h>
-@@ -2171,7 +2174,12 @@
- if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
- skb_dst_drop(skb);
+
+ #include "net-sysfs.h"
+
+@@ -2881,7 +2884,12 @@ static int xmit_one(struct sk_buff *skb,
+ unsigned int len;
+ int rc;
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+ if (!list_empty(&ptype_all) &&
-+ !(skb->imq_flags & IMQ_F_ENQUEUE))
++ if ((!list_empty(&ptype_all) || !list_empty(&dev->ptype_all)) &&
++ !(skb->imq_flags & IMQ_F_ENQUEUE))
+#else
- if (!list_empty(&ptype_all))
+ if (!list_empty(&ptype_all) || !list_empty(&dev->ptype_all))
+#endif
- dev_queue_xmit_nit(skb, dev);
+ dev_queue_xmit_nit(skb, dev);
- features = netif_skb_features(skb);
-diff -uNr linux-3.5/net/core/skbuff.c linux-3.5-imq/net/core/skbuff.c
---- linux-3.5/net/core/skbuff.c 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/core/skbuff.c 2012-07-25 12:31:59.722655161 +0300
-@@ -73,6 +73,9 @@
+ len = skb->len;
+@@ -2920,6 +2928,8 @@ out:
+ return skb;
+ }
- struct kmem_cache *skbuff_head_cache __read_mostly;
++EXPORT_SYMBOL_GPL(dev_hard_start_xmit);
++
+ static struct sk_buff *validate_xmit_vlan(struct sk_buff *skb,
+ netdev_features_t features)
+ {
+diff -Naupr linux-4.10_orig/net/core/skbuff.c linux-4.10/net/core/skbuff.c
+--- linux-4.10_orig/net/core/skbuff.c 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/core/skbuff.c 2017-02-28 18:44:55.984947288 +0700
+@@ -82,6 +82,87 @@ struct kmem_cache *skbuff_head_cache __r
static struct kmem_cache *skbuff_fclone_cache __read_mostly;
+ int sysctl_max_skb_frags __read_mostly = MAX_SKB_FRAGS;
+ EXPORT_SYMBOL(sysctl_max_skb_frags);
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+static struct kmem_cache *skbuff_cb_store_cache __read_mostly;
+#endif
-
- static void sock_pipe_buf_release(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-@@ -92,6 +95,82 @@
- return 1;
- }
-
++
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+/* Control buffer save/restore for IMQ devices */
+struct skb_cb_table {
+}
+EXPORT_SYMBOL(skb_restore_cb);
+
++static void skb_copy_stored_cb(struct sk_buff * , const struct sk_buff * ) __attribute__ ((unused));
+static void skb_copy_stored_cb(struct sk_buff *new, const struct sk_buff *__old)
+{
+ struct skb_cb_table *next;
+}
+#endif
- /* Pipe buffer operations for a socket. */
- static const struct pipe_buf_operations sock_pipe_buf_ops = {
-@@ -490,6 +569,29 @@
+ /**
+ * skb_panic - private function for out-of-line support
+@@ -654,6 +735,28 @@ static void skb_release_head_state(struc
WARN_ON(in_irq());
skb->destructor(skb);
}
+ */
+ while (skb->cb_next != NULL) {
+ if (net_ratelimit())
-+ printk(KERN_WARNING "IMQ: kfree_skb: skb->cb_next: "
-+ "%08x\n", (unsigned int)skb->cb_next);
++ pr_warn("IMQ: kfree_skb: skb->cb_next: %08x\n",
++ (unsigned int)(uintptr_t)skb->cb_next);
+
+ skb_restore_cb(skb);
+ }
+ * If this happens we need to add refcounting, etc for nf_queue_entry.
+ */
+ if (skb->nf_queue_entry && net_ratelimit())
-+ printk(KERN_WARNING
-+ "IMQ: kfree_skb: skb->nf_queue_entry != NULL");
++ pr_warn("%s\n", "IMQ: kfree_skb: skb->nf_queue_entry != NULL");
+#endif
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
nf_conntrack_put(skb->nfct);
#endif
-@@ -635,6 +737,9 @@
+@@ -843,6 +946,10 @@ static void __copy_skb_header(struct sk_
new->sp = secpath_get(old->sp);
#endif
- memcpy(new->cb, old->cb, sizeof(old->cb));
+ __nf_copy(new, old, false);
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+ skb_copy_stored_cb(new, old);
++ new->cb_next = NULL;
++ /*skb_copy_stored_cb(new, old);*/
+#endif
- new->csum = old->csum;
- new->local_df = old->local_df;
- new->pkt_type = old->pkt_type;
-@@ -3029,6 +3134,13 @@
+
+ /* Note : this field could be in headers_start/headers_end section
+ * It is not yet because we do not want to have a 16 bit hole
+@@ -3465,6 +3572,13 @@ void __init skb_init(void)
0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC,
NULL);
}
/**
-diff -uNr linux-3.5/net/ipv6/ip6_output.c linux-3.5-imq/net/ipv6/ip6_output.c
---- linux-3.5/net/ipv6/ip6_output.c 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/ipv6/ip6_output.c 2012-07-25 12:31:59.722655161 +0300
-@@ -102,9 +102,6 @@
- struct net_device *dev = dst->dev;
- struct neighbour *neigh;
+diff -Naupr linux-4.10_orig/net/ipv6/ip6_output.c linux-4.10/net/ipv6/ip6_output.c
+--- linux-4.10_orig/net/ipv6/ip6_output.c 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/ipv6/ip6_output.c 2017-02-28 18:44:55.988280636 +0700
+@@ -67,9 +67,6 @@ static int ip6_finish_output2(struct net
+ struct in6_addr *nexthop;
+ int ret;
- skb->protocol = htons(ETH_P_IPV6);
- skb->dev = dev;
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
-@@ -170,6 +167,11 @@
+@@ -159,6 +156,13 @@ int ip6_output(struct net *net, struct s
return 0;
}
-+ /* IMQ-patch: moved setting skb->dev and skb->protocol from
-+ * ip6_finish_output2 to fix crashing at netif_skb_features(). */
++ /*
++ * IMQ-patch: moved setting skb->dev and skb->protocol from
++ * ip6_finish_output2 to fix crashing at netif_skb_features().
++ */
+ skb->protocol = htons(ETH_P_IPV6);
+ skb->dev = dev;
+
- return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb, NULL, dev,
+ return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING,
+ net, sk, skb, NULL, dev,
ip6_finish_output,
- !(IP6CB(skb)->flags & IP6SKB_REROUTED));
-diff -uNr linux-3.5/net/netfilter/core.c linux-3.5-imq/net/netfilter/core.c
---- linux-3.5/net/netfilter/core.c 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/netfilter/core.c 2012-07-25 12:31:59.722655161 +0300
-@@ -190,9 +190,11 @@
- ret = NF_DROP_GETERR(verdict);
- if (ret == 0)
- ret = -EPERM;
-- } else if ((verdict & NF_VERDICT_MASK) == NF_QUEUE) {
-+ } else if ((verdict & NF_VERDICT_MASK) == NF_QUEUE ||
-+ (verdict & NF_VERDICT_MASK) == NF_IMQ_QUEUE) {
- int err = nf_queue(skb, elem, pf, hook, indev, outdev, okfn,
-- verdict >> NF_VERDICT_QBITS);
-+ verdict >> NF_VERDICT_QBITS,
-+ verdict & NF_VERDICT_MASK);
- if (err < 0) {
- if (err == -ECANCELED)
- goto next_hook;
-diff -uNr linux-3.5/net/netfilter/Kconfig linux-3.5-imq/net/netfilter/Kconfig
---- linux-3.5/net/netfilter/Kconfig 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/netfilter/Kconfig 2012-07-25 12:31:59.722655161 +0300
-@@ -569,6 +569,18 @@
+diff -Naupr linux-4.10_orig/net/netfilter/core.c linux-4.10/net/netfilter/core.c
+--- linux-4.10_orig/net/netfilter/core.c 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/netfilter/core.c 2017-02-28 18:44:55.988280636 +0700
+@@ -318,6 +318,11 @@ int nf_hook_slow(struct sk_buff *skb, st
+ if (ret == 0)
+ ret = -EPERM;
+ return ret;
++ case NF_IMQ_QUEUE:
++ ret = nf_queue(skb, state, &entry, verdict);
++ if (ret == -ECANCELED)
++ continue;
++ return ret;
+ case NF_QUEUE:
+ ret = nf_queue(skb, state, &entry, verdict);
+ if (ret == 1 && entry)
+diff -Naupr linux-4.10_orig/net/netfilter/Kconfig linux-4.10/net/netfilter/Kconfig
+--- linux-4.10_orig/net/netfilter/Kconfig 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/netfilter/Kconfig 2017-02-28 18:44:55.988280636 +0700
+@@ -852,6 +852,18 @@ config NETFILTER_XT_TARGET_LOG
To compile it as a module, choose M here. If unsure, say N.
config NETFILTER_XT_TARGET_MARK
tristate '"MARK" target support'
depends on NETFILTER_ADVANCED
-diff -uNr linux-3.5/net/netfilter/Makefile linux-3.5-imq/net/netfilter/Makefile
---- linux-3.5/net/netfilter/Makefile 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/netfilter/Makefile 2012-07-25 12:32:28.966592115 +0300
-@@ -60,6 +60,7 @@
+diff -Naupr linux-4.10_orig/net/netfilter/Makefile linux-4.10/net/netfilter/Makefile
+--- linux-4.10_orig/net/netfilter/Makefile 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/netfilter/Makefile 2017-02-28 18:44:55.988280636 +0700
+@@ -125,6 +125,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CT) +=
obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
obj-$(CONFIG_NETFILTER_XT_TARGET_HMARK) += xt_HMARK.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_IMQ) += xt_IMQ.o
obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
obj-$(CONFIG_NETFILTER_XT_TARGET_LOG) += xt_LOG.o
- obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o
-diff -uNr linux-3.5/net/netfilter/nf_internals.h linux-3.5-imq/net/netfilter/nf_internals.h
---- linux-3.5/net/netfilter/nf_internals.h 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/netfilter/nf_internals.h 2012-07-25 12:31:59.725988564 +0300
-@@ -29,7 +29,7 @@
- struct net_device *indev,
- struct net_device *outdev,
- int (*okfn)(struct sk_buff *),
-- unsigned int queuenum);
-+ unsigned int queuenum, unsigned int queuetype);
- extern int __init netfilter_queue_init(void);
-
- /* nf_log.c */
-diff -uNr linux-3.5/net/netfilter/nf_queue.c linux-3.5-imq/net/netfilter/nf_queue.c
---- linux-3.5/net/netfilter/nf_queue.c 2012-07-21 23:58:29.000000000 +0300
-+++ linux-3.5-imq/net/netfilter/nf_queue.c 2012-07-25 12:31:59.725988564 +0300
-@@ -22,6 +22,26 @@
-
- static DEFINE_MUTEX(queue_handler_mutex);
+ obj-$(CONFIG_NETFILTER_XT_TARGET_NETMAP) += xt_NETMAP.o
+diff -Naupr linux-4.10_orig/net/netfilter/nf_queue.c linux-4.10/net/netfilter/nf_queue.c
+--- linux-4.10_orig/net/netfilter/nf_queue.c 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/netfilter/nf_queue.c 2017-02-28 18:44:55.988280636 +0700
+@@ -27,6 +27,23 @@
+ * receives, no matter what.
+ */
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+static const struct nf_queue_handler *queue_imq_handler;
++static const struct nf_queue_handler __rcu *queue_imq_handler __read_mostly;
+
+void nf_register_queue_imq_handler(const struct nf_queue_handler *qh)
+{
-+ mutex_lock(&queue_handler_mutex);
+ rcu_assign_pointer(queue_imq_handler, qh);
-+ mutex_unlock(&queue_handler_mutex);
+}
+EXPORT_SYMBOL_GPL(nf_register_queue_imq_handler);
+
+void nf_unregister_queue_imq_handler(void)
+{
-+ mutex_lock(&queue_handler_mutex);
-+ rcu_assign_pointer(queue_imq_handler, NULL);
-+ mutex_unlock(&queue_handler_mutex);
++ RCU_INIT_POINTER(queue_imq_handler, NULL);
++ synchronize_rcu();
+}
+EXPORT_SYMBOL_GPL(nf_unregister_queue_imq_handler);
+#endif
+
/* return EBUSY when somebody else is registered, return EEXIST if the
* same handler is registered, return 0 in case of success. */
- int nf_register_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh)
-@@ -92,7 +112,7 @@
- }
- EXPORT_SYMBOL_GPL(nf_unregister_queue_handlers);
-
--static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
-+void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
- {
- /* Release those devices we held, or Alexey will kill me. */
- if (entry->indev)
-@@ -112,6 +132,7 @@
- /* Drop reference to owner of hook which queued us. */
- module_put(entry->elem->owner);
+ void nf_register_queue_handler(struct net *net, const struct nf_queue_handler *qh)
+@@ -108,16 +125,28 @@ void nf_queue_nf_hook_drop(struct net *n
}
-+EXPORT_SYMBOL_GPL(nf_queue_entry_release_refs);
- /*
- * Any packet that leaves via this function must come back
-@@ -123,7 +144,8 @@
- struct net_device *indev,
- struct net_device *outdev,
- int (*okfn)(struct sk_buff *),
-- unsigned int queuenum)
-+ unsigned int queuenum,
-+ unsigned int queuetype)
+ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
+- struct nf_hook_entry *hook_entry, unsigned int queuenum)
++ struct nf_hook_entry *hook_entry, unsigned int verdict)
{
int status = -ENOENT;
struct nf_queue_entry *entry = NULL;
-@@ -137,7 +159,17 @@
- /* QUEUE == DROP if no one is waiting, to be safe. */
- rcu_read_lock();
+ const struct nf_afinfo *afinfo;
+ const struct nf_queue_handler *qh;
+ struct net *net = state->net;
++ unsigned int queuetype = verdict & NF_VERDICT_MASK;
++ unsigned int queuenum = verdict >> NF_VERDICT_QBITS;
-- qh = rcu_dereference(queue_handler);
+ /* QUEUE == DROP if no one is waiting, to be safe. */
+- qh = rcu_dereference(net->nf.queue_handler);
+ if (queuetype == NF_IMQ_QUEUE) {
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
-+ qh = rcu_dereference(queue_imq_handler);
++ qh = rcu_dereference(queue_imq_handler);
+#else
-+ BUG();
-+ goto err_unlock;
++ BUG();
++ goto err_unlock;
+#endif
+ } else {
-+ qh = rcu_dereference(queue_handler);
++ qh = rcu_dereference(net->nf.queue_handler);
+ }
+
if (!qh) {
status = -ESRCH;
- goto err_unlock;
-@@ -230,7 +262,8 @@
- struct net_device *indev,
- struct net_device *outdev,
- int (*okfn)(struct sk_buff *),
-- unsigned int queuenum)
-+ unsigned int queuenum,
-+ unsigned int queuetype)
- {
- struct sk_buff *segs;
- int err = -EINVAL;
-@@ -238,7 +271,7 @@
-
- if (!skb_is_gso(skb))
- return __nf_queue(skb, elem, pf, hook, indev, outdev, okfn,
-- queuenum);
-+ queuenum, queuetype);
+ goto err;
+@@ -164,8 +193,17 @@ int nf_queue(struct sk_buff *skb, struct
+ struct nf_hook_entry *entry = *entryp;
+ int ret;
- switch (pf) {
- case NFPROTO_IPV4:
-@@ -266,7 +299,7 @@
- if (err == 0) {
- nf_bridge_adjust_segmented_data(segs);
- err = __nf_queue(segs, elem, pf, hook, indev,
-- outdev, okfn, queuenum);
-+ outdev, okfn, queuenum, queuetype);
- }
- if (err == 0)
- queued++;
-@@ -323,9 +356,11 @@
+- ret = __nf_queue(skb, state, entry, verdict >> NF_VERDICT_QBITS);
++ ret = __nf_queue(skb, state, entry, verdict);
+ if (ret < 0) {
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++ /* IMQ Bypass */
++ if (ret == -ECANCELED && skb->imq_flags == 0) {
++ *entryp = rcu_dereference(entry->next);
++ return 1;
++ }
++#endif
++
+ if (ret == -ESRCH &&
+ (verdict & NF_VERDICT_FLAG_QUEUE_BYPASS)) {
+ *entryp = rcu_dereference(entry->next);
+@@ -232,6 +270,7 @@ okfn:
local_bh_enable();
break;
case NF_QUEUE:
+ case NF_IMQ_QUEUE:
- err = __nf_queue(skb, elem, entry->pf, entry->hook,
- entry->indev, entry->outdev, entry->okfn,
-- verdict >> NF_VERDICT_QBITS);
-+ verdict >> NF_VERDICT_QBITS,
-+ verdict & NF_VERDICT_MASK);
- if (err < 0) {
- if (err == -ECANCELED)
- goto next_hook;
-diff -uNr linux-3.5/net/netfilter/xt_IMQ.c linux-3.5-imq/net/netfilter/xt_IMQ.c
---- linux-3.5/net/netfilter/xt_IMQ.c 1970-01-01 02:00:00.000000000 +0200
-+++ linux-3.5-imq/net/netfilter/xt_IMQ.c 2012-07-25 12:31:59.725988564 +0300
-@@ -0,0 +1,74 @@
+ err = nf_queue(skb, &entry->state, &hook_entry, verdict);
+ if (err == 1) {
+ if (hook_entry)
+diff -Naupr linux-4.10_orig/net/netfilter/xt_IMQ.c linux-4.10/net/netfilter/xt_IMQ.c
+--- linux-4.10_orig/net/netfilter/xt_IMQ.c 1970-01-01 07:00:00.000000000 +0700
++++ linux-4.10/net/netfilter/xt_IMQ.c 2017-02-28 18:44:55.988280636 +0700
+@@ -0,0 +1,72 @@
+/*
+ * This target marks packets to be enqueued to an imq device
+ */
+ struct xt_imq_info *mr = par->targinfo;
+
+ if (mr->todev > IMQ_MAX_DEVS - 1) {
-+ printk(KERN_WARNING
-+ "IMQ: invalid device specified, highest is %u\n",
-+ IMQ_MAX_DEVS - 1);
++ pr_warn("IMQ: invalid device specified, highest is %u\n",
++ IMQ_MAX_DEVS - 1);
+ return -EINVAL;
+ }
+
+module_init(imq_init);
+module_exit(imq_fini);
+
-+MODULE_AUTHOR("http://www.linuximq.net");
-+MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. "
-+ "See http://www.linuximq.net/ for more information.");
++MODULE_AUTHOR("https://github.com/imq/linuximq");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See https://github.com/imq/linuximq/wiki for more information.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_IMQ");
+MODULE_ALIAS("ip6t_IMQ");
+
+diff -Naupr linux-4.10_orig/net/sched/sch_generic.c linux-4.10/net/sched/sch_generic.c
+--- linux-4.10_orig/net/sched/sch_generic.c 2017-02-20 05:34:00.000000000 +0700
++++ linux-4.10/net/sched/sch_generic.c 2017-02-28 18:44:55.988280636 +0700
+@@ -154,6 +154,14 @@ bulk:
+ return skb;
+ }
+
++struct sk_buff *qdisc_dequeue_skb(struct Qdisc *q, bool *validate)
++{
++ int packets;
++
++ return dequeue_skb(q, validate, &packets);
++}
++EXPORT_SYMBOL(qdisc_dequeue_skb);
++
+ /*
+ * Transmit possibly several skbs, and handle the return status as
+ * required. Owning running seqcount bit guarantees that
projects / packages / kernel.git / blobdiff