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Diffstat (limited to 'target/linux/generic/pending-5.10/630-packet_socket_type.patch')
-rw-r--r--target/linux/generic/pending-5.10/630-packet_socket_type.patch138
1 files changed, 0 insertions, 138 deletions
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
index e9ecd8a8b2..0000000000
--- a/target/linux/generic/pending-5.10/630-packet_socket_type.patch
+++ /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)