v4.19.13 snapshot.
diff --git a/net/atm/raw.c b/net/atm/raw.c
new file mode 100644
index 0000000..b3ba44a
--- /dev/null
+++ b/net/atm/raw.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/* net/atm/raw.c - Raw AAL0 and AAL5 transports */
+
+/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+
+#include <linux/module.h>
+#include <linux/atmdev.h>
+#include <linux/capability.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include "common.h"
+#include "protocols.h"
+
+/*
+ * 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);
+ }
+}
+
+static void atm_pop_raw(struct atm_vcc *vcc, struct sk_buff *skb)
+{
+ struct sock *sk = sk_atm(vcc);
+
+ pr_debug("(%d) %d -= %d\n",
+ vcc->vci, sk_wmem_alloc_get(sk), ATM_SKB(skb)->acct_truesize);
+ WARN_ON(refcount_sub_and_test(ATM_SKB(skb)->acct_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);