1 files changed, 98 insertions, 0 deletions

diff --git a/net/atm/raw.c b/net/atm/raw.c
new file mode 100644
index 000000000000..4a0466e91aa6
--- /dev/null
+++ b/net/atm/raw.c
@@ -0,0 +1,98 @@
+/* net/atm/raw.c - Raw AAL0 and AAL5 transports */
+
+/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
+
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/atmdev.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/mm.h>
+
+#include "common.h"
+#include "protocols.h"
+
+
+#if 0
+#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
+#else
+#define DPRINTK(format,args...)
+#endif
+
+
+/*
+ * SKB == NULL indicates that the link is being closed
+ */
+
+static void atm_push_raw(struct atm_vcc *vcc,struct sk_buff *skb)
+{
+        if (skb) {
+                struct sock *sk = sk_atm(vcc);
+
+                skb_queue_tail(&sk->sk_receive_queue, skb);
+                sk->sk_data_ready(sk, skb->len);
+        }
+}
+
+
+static void atm_pop_raw(struct atm_vcc *vcc,struct sk_buff *skb)
+{
+        struct sock *sk = sk_atm(vcc);
+
+        DPRINTK("APopR (%d) %d -= %d\n", vcc->vci, sk->sk_wmem_alloc,
+                skb->truesize);
+        atomic_sub(skb->truesize, &sk->sk_wmem_alloc);
+        dev_kfree_skb_any(skb);
+        sk->sk_write_space(sk);
+}
+
+
+static int atm_send_aal0(struct atm_vcc *vcc,struct sk_buff *skb)
+{
+        /*
+         * Note that if vpi/vci are _ANY or _UNSPEC the below will
+         * still work
+         */
+        if (!capable(CAP_NET_ADMIN) &&
+            (((u32 *) skb->data)[0] & (ATM_HDR_VPI_MASK | ATM_HDR_VCI_MASK)) !=
+            ((vcc->vpi << ATM_HDR_VPI_SHIFT) | (vcc->vci << ATM_HDR_VCI_SHIFT)))
+            {
+                kfree_skb(skb);
+                return -EADDRNOTAVAIL;
+        }
+        return vcc->dev->ops->send(vcc,skb);
+}
+
+
+int atm_init_aal0(struct atm_vcc *vcc)
+{
+        vcc->push = atm_push_raw;
+        vcc->pop = atm_pop_raw;
+        vcc->push_oam = NULL;
+        vcc->send = atm_send_aal0;
+        return 0;
+}
+
+
+int atm_init_aal34(struct atm_vcc *vcc)
+{
+        vcc->push = atm_push_raw;
+        vcc->pop = atm_pop_raw;
+        vcc->push_oam = NULL;
+        vcc->send = vcc->dev->ops->send;
+        return 0;
+}
+
+
+int atm_init_aal5(struct atm_vcc *vcc)
+{
+        vcc->push = atm_push_raw;
+        vcc->pop = atm_pop_raw;
+        vcc->push_oam = NULL;
+        vcc->send = vcc->dev->ops->send;
+        return 0;
+}
+
+
+EXPORT_SYMBOL(atm_init_aal5);