treewide: remove files for building 5.10 kernel
[openwrt/openwrt.git] / target / linux / generic / pending-5.10 / 630-packet_socket_type.patch
diff --git a/target/linux/generic/pending-5.10/630-packet_socket_type.patch b/target/linux/generic/pending-5.10/630-packet_socket_type.patch
deleted file mode 100644 (file)
index e9ecd8a..0000000
+++ /dev/null
@@ -1,138 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Subject: net: add an optimization for dealing with raw sockets
-
-lede-commit: 4898039703d7315f0f3431c860123338ec3be0f6
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- include/uapi/linux/if_packet.h |  3 +++
- net/packet/af_packet.c         | 34 +++++++++++++++++++++++++++-------
- net/packet/internal.h          |  1 +
- 3 files changed, 31 insertions(+), 7 deletions(-)
-
---- a/include/uapi/linux/if_packet.h
-+++ b/include/uapi/linux/if_packet.h
-@@ -33,6 +33,8 @@ struct sockaddr_ll {
- #define PACKET_KERNEL         7               /* To kernel space      */
- /* Unused, PACKET_FASTROUTE and PACKET_LOOPBACK are invisible to user space */
- #define PACKET_FASTROUTE      6               /* Fastrouted frame     */
-+#define PACKET_MASK_ANY               0xffffffff      /* mask for packet type bits */
-+
- /* Packet socket options */
-@@ -59,6 +61,7 @@ struct sockaddr_ll {
- #define PACKET_ROLLOVER_STATS         21
- #define PACKET_FANOUT_DATA            22
- #define PACKET_IGNORE_OUTGOING                23
-+#define PACKET_RECV_TYPE              24
- #define PACKET_FANOUT_HASH            0
- #define PACKET_FANOUT_LB              1
---- a/net/packet/af_packet.c
-+++ b/net/packet/af_packet.c
-@@ -1822,6 +1822,7 @@ static int packet_rcv_spkt(struct sk_buf
- {
-       struct sock *sk;
-       struct sockaddr_pkt *spkt;
-+      struct packet_sock *po;
-       /*
-        *      When we registered the protocol we saved the socket in the data
-@@ -1829,6 +1830,7 @@ static int packet_rcv_spkt(struct sk_buf
-        */
-       sk = pt->af_packet_priv;
-+      po = pkt_sk(sk);
-       /*
-        *      Yank back the headers [hope the device set this
-@@ -1841,7 +1843,7 @@ static int packet_rcv_spkt(struct sk_buf
-        *      so that this procedure is noop.
-        */
--      if (skb->pkt_type == PACKET_LOOPBACK)
-+      if (!(po->pkt_type & (1 << skb->pkt_type)))
-               goto out;
-       if (!net_eq(dev_net(dev), sock_net(sk)))
-@@ -2089,12 +2091,12 @@ static int packet_rcv(struct sk_buff *sk
-       unsigned int snaplen, res;
-       bool is_drop_n_account = false;
--      if (skb->pkt_type == PACKET_LOOPBACK)
--              goto drop;
--
-       sk = pt->af_packet_priv;
-       po = pkt_sk(sk);
-+      if (!(po->pkt_type & (1 << skb->pkt_type)))
-+              goto drop;
-+
-       if (!net_eq(dev_net(dev), sock_net(sk)))
-               goto drop;
-@@ -2220,12 +2222,12 @@ static int tpacket_rcv(struct sk_buff *s
-       BUILD_BUG_ON(TPACKET_ALIGN(sizeof(*h.h2)) != 32);
-       BUILD_BUG_ON(TPACKET_ALIGN(sizeof(*h.h3)) != 48);
--      if (skb->pkt_type == PACKET_LOOPBACK)
--              goto drop;
--
-       sk = pt->af_packet_priv;
-       po = pkt_sk(sk);
-+      if (!(po->pkt_type & (1 << skb->pkt_type)))
-+              goto drop;
-+
-       if (!net_eq(dev_net(dev), sock_net(sk)))
-               goto drop;
-@@ -3339,6 +3341,7 @@ static int packet_create(struct net *net
-       mutex_init(&po->pg_vec_lock);
-       po->rollover = NULL;
-       po->prot_hook.func = packet_rcv;
-+      po->pkt_type = PACKET_MASK_ANY & ~(1 << PACKET_LOOPBACK);
-       if (sock->type == SOCK_PACKET)
-               po->prot_hook.func = packet_rcv_spkt;
-@@ -3982,6 +3985,16 @@ packet_setsockopt(struct socket *sock, i
-               po->xmit = val ? packet_direct_xmit : dev_queue_xmit;
-               return 0;
-       }
-+      case PACKET_RECV_TYPE:
-+      {
-+              unsigned int val;
-+              if (optlen != sizeof(val))
-+                      return -EINVAL;
-+              if (copy_from_sockptr(&val, optval, sizeof(val)))
-+                      return -EFAULT;
-+              po->pkt_type = val & ~BIT(PACKET_LOOPBACK);
-+              return 0;
-+      }
-       default:
-               return -ENOPROTOOPT;
-       }
-@@ -4038,6 +4051,13 @@ static int packet_getsockopt(struct sock
-       case PACKET_VNET_HDR:
-               val = po->has_vnet_hdr;
-               break;
-+      case PACKET_RECV_TYPE:
-+              if (len > sizeof(unsigned int))
-+                      len = sizeof(unsigned int);
-+              val = po->pkt_type;
-+
-+              data = &val;
-+              break;
-       case PACKET_VERSION:
-               val = po->tp_version;
-               break;
---- a/net/packet/internal.h
-+++ b/net/packet/internal.h
-@@ -137,6 +137,7 @@ struct packet_sock {
-       int                     (*xmit)(struct sk_buff *skb);
-       struct packet_type      prot_hook ____cacheline_aligned_in_smp;
-       atomic_t                tp_drops ____cacheline_aligned_in_smp;
-+      unsigned int            pkt_type;
- };
- static struct packet_sock *pkt_sk(struct sock *sk)