Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 275 insertions, 0 deletions

diff --git a/include/net/pkt_act.h b/include/net/pkt_act.h
new file mode 100644
index 000000000000..bd08964b72c0
--- /dev/null
+++ b/include/net/pkt_act.h
@@ -0,0 +1,275 @@
+#ifndef __NET_PKT_ACT_H
+#define __NET_PKT_ACT_H
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <linux/bitops.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/in.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/rtnetlink.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <net/sock.h>
+#include <net/pkt_sched.h>
+
+#define tca_st(val) (struct tcf_##val *)
+#define PRIV(a,name) ( tca_st(name) (a)->priv)
+
+#if 0 /* control */
+#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
+#else
+#define DPRINTK(format,args...)
+#endif
+
+#if 0 /* data */
+#define D2PRINTK(format,args...) printk(KERN_DEBUG format,##args)
+#else
+#define D2PRINTK(format,args...)
+#endif
+
+static __inline__ unsigned
+tcf_hash(u32 index)
+{
+	return index & MY_TAB_MASK;
+}
+
+/* probably move this from being inline
+ * and put into act_generic
+*/
+static inline void
+tcf_hash_destroy(struct tcf_st *p)
+{
+	unsigned h = tcf_hash(p->index);
+	struct tcf_st **p1p;
+
+	for (p1p = &tcf_ht[h]; *p1p; p1p = &(*p1p)->next) {
+		if (*p1p == p) {
+			write_lock_bh(&tcf_t_lock);
+			*p1p = p->next;
+			write_unlock_bh(&tcf_t_lock);
+#ifdef CONFIG_NET_ESTIMATOR
+			gen_kill_estimator(&p->bstats, &p->rate_est);
+#endif
+			kfree(p);
+			return;
+		}
+	}
+	BUG_TRAP(0);
+}
+
+static inline int
+tcf_hash_release(struct tcf_st *p, int bind )
+{
+	int ret = 0;
+	if (p) {
+		if (bind) {
+			p->bindcnt--;
+		}
+		p->refcnt--;
+	       	if(p->bindcnt <=0 && p->refcnt <= 0) {
+			tcf_hash_destroy(p);
+			ret = 1;
+		}
+	}
+	return ret;
+}
+
+static __inline__ int
+tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb,
+		struct tc_action *a)
+{
+	struct tcf_st *p;
+	int err =0, index =  -1,i= 0, s_i = 0, n_i = 0;
+	struct rtattr *r ;
+
+	read_lock(&tcf_t_lock);
+
+	s_i = cb->args[0];
+
+	for (i = 0; i < MY_TAB_SIZE; i++) {
+		p = tcf_ht[tcf_hash(i)];
+
+		for (; p; p = p->next) {
+			index++;
+			if (index < s_i)
+				continue;
+			a->priv = p;
+			a->order = n_i;
+			r = (struct rtattr*) skb->tail;
+			RTA_PUT(skb, a->order, 0, NULL);
+			err = tcf_action_dump_1(skb, a, 0, 0);
+			if (0 > err) {
+				index--;
+				skb_trim(skb, (u8*)r - skb->data);
+				goto done;
+			}
+			r->rta_len = skb->tail - (u8*)r;
+			n_i++;
+			if (n_i >= TCA_ACT_MAX_PRIO) {
+				goto done;
+			}
+		}
+	}
+done:
+	read_unlock(&tcf_t_lock);
+	if (n_i)
+		cb->args[0] += n_i;
+	return n_i;
+
+rtattr_failure:
+	skb_trim(skb, (u8*)r - skb->data);
+	goto done;
+}
+
+static __inline__ int
+tcf_del_walker(struct sk_buff *skb, struct tc_action *a)
+{
+	struct tcf_st *p, *s_p;
+	struct rtattr *r ;
+	int i= 0, n_i = 0;
+
+	r = (struct rtattr*) skb->tail;
+	RTA_PUT(skb, a->order, 0, NULL);
+	RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);
+	for (i = 0; i < MY_TAB_SIZE; i++) {
+		p = tcf_ht[tcf_hash(i)];
+
+		while (p != NULL) {
+			s_p = p->next;
+			if (ACT_P_DELETED == tcf_hash_release(p, 0)) {
+				 module_put(a->ops->owner);
+			}
+			n_i++;
+			p = s_p;
+		}
+	}
+	RTA_PUT(skb, TCA_FCNT, 4, &n_i);
+	r->rta_len = skb->tail - (u8*)r;
+
+	return n_i;
+rtattr_failure:
+	skb_trim(skb, (u8*)r - skb->data);
+	return -EINVAL;
+}
+
+static __inline__ int
+tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, int type,
+		struct tc_action *a)
+{
+		if (type == RTM_DELACTION) {
+			return tcf_del_walker(skb,a);
+		} else if (type == RTM_GETACTION) {
+			return tcf_dump_walker(skb,cb,a);
+		} else {
+			printk("tcf_generic_walker: unknown action %d\n",type);
+			return -EINVAL;
+		}
+}
+
+static __inline__ struct tcf_st *
+tcf_hash_lookup(u32 index)
+{
+	struct tcf_st *p;
+
+	read_lock(&tcf_t_lock);
+	for (p = tcf_ht[tcf_hash(index)]; p; p = p->next) {
+		if (p->index == index)
+			break;
+	}
+	read_unlock(&tcf_t_lock);
+	return p;
+}
+
+static __inline__ u32
+tcf_hash_new_index(void)
+{
+	do {
+		if (++idx_gen == 0)
+			idx_gen = 1;
+	} while (tcf_hash_lookup(idx_gen));
+
+	return idx_gen;
+}
+
+
+static inline int
+tcf_hash_search(struct tc_action *a, u32 index)
+{
+	struct tcf_st *p = tcf_hash_lookup(index);
+
+	if (p != NULL) {
+		a->priv = p;
+		return 1;
+	}
+	return 0;
+}
+
+#ifdef CONFIG_NET_ACT_INIT
+static inline struct tcf_st *
+tcf_hash_check(u32 index, struct tc_action *a, int ovr, int bind)
+{
+	struct tcf_st *p = NULL;
+	if (index && (p = tcf_hash_lookup(index)) != NULL) {
+		if (bind) {
+			p->bindcnt++;
+			p->refcnt++;
+		}
+		a->priv = p;
+	}
+	return p;
+}
+
+static inline struct tcf_st *
+tcf_hash_create(u32 index, struct rtattr *est, struct tc_action *a, int size, int ovr, int bind)
+{
+	struct tcf_st *p = NULL;
+
+	p = kmalloc(size, GFP_KERNEL);
+	if (p == NULL)
+		return p;
+
+	memset(p, 0, size);
+	p->refcnt = 1;
+
+	if (bind) {
+		p->bindcnt = 1;
+	}
+
+	spin_lock_init(&p->lock);
+	p->stats_lock = &p->lock;
+	p->index = index ? : tcf_hash_new_index();
+	p->tm.install = jiffies;
+	p->tm.lastuse = jiffies;
+#ifdef CONFIG_NET_ESTIMATOR
+	if (est)
+		gen_new_estimator(&p->bstats, &p->rate_est, p->stats_lock, est);
+#endif
+	a->priv = (void *) p;
+	return p;
+}
+
+static inline void tcf_hash_insert(struct tcf_st *p)
+{
+	unsigned h = tcf_hash(p->index);
+
+	write_lock_bh(&tcf_t_lock);
+	p->next = tcf_ht[h];
+	tcf_ht[h] = p;
+	write_unlock_bh(&tcf_t_lock);
+}
+
+#endif
+
+#endif