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Diffstat (limited to 'target/mips/dragino-ms14s/patches/3.14.54/0018-net-allow-PHY-drivers-to-insert-packet-mangle-hooks.patch')
-rw-r--r--target/mips/dragino-ms14s/patches/3.14.54/0018-net-allow-PHY-drivers-to-insert-packet-mangle-hooks.patch211
1 files changed, 0 insertions, 211 deletions
diff --git a/target/mips/dragino-ms14s/patches/3.14.54/0018-net-allow-PHY-drivers-to-insert-packet-mangle-hooks.patch b/target/mips/dragino-ms14s/patches/3.14.54/0018-net-allow-PHY-drivers-to-insert-packet-mangle-hooks.patch
deleted file mode 100644
index 6a372c8f1..000000000
--- a/target/mips/dragino-ms14s/patches/3.14.54/0018-net-allow-PHY-drivers-to-insert-packet-mangle-hooks.patch
+++ /dev/null
@@ -1,211 +0,0 @@
-From ebca842041d737b7441748a17ffd535aab851fce Mon Sep 17 00:00:00 2001
-From: Phil Sutter <phil@nwl.cc>
-Date: Tue, 13 May 2014 01:32:11 +0200
-Subject: [PATCH] net: allow PHY drivers to insert packet mangle hooks
-
----
- include/linux/netdevice.h | 8 ++++++++
- include/linux/skbuff.h | 14 ++++----------
- include/uapi/linux/if.h | 1 +
- net/Kconfig | 6 ++++++
- net/core/dev.c | 36 ++++++++++++++++++++++++++++--------
- net/core/skbuff.c | 17 +++++++++++++++++
- net/ethernet/eth.c | 6 ++++++
- 7 files changed, 70 insertions(+), 18 deletions(-)
-
-diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
-index 911718f..8e8dd46 100644
---- a/include/linux/netdevice.h
-+++ b/include/linux/netdevice.h
-@@ -1245,6 +1245,11 @@ struct net_device {
- const struct ethtool_ops *ethtool_ops;
- const struct forwarding_accel_ops *fwd_ops;
-
-+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
-+ void (*eth_mangle_rx)(struct net_device *dev, struct sk_buff *skb);
-+ struct sk_buff *(*eth_mangle_tx)(struct net_device *dev, struct sk_buff *skb);
-+#endif
-+
- /* Hardware header description */
- const struct header_ops *header_ops;
-
-@@ -1313,6 +1318,9 @@ struct net_device {
- void *ax25_ptr; /* AX.25 specific data */
- struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data,
- assign before registering */
-+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
-+ void *phy_ptr; /* PHY device specific data */
-+#endif
-
- /*
- * Cache lines mostly used on receive path (including eth_type_trans())
-diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
-index 15ede6a..5530766 100644
---- a/include/linux/skbuff.h
-+++ b/include/linux/skbuff.h
-@@ -1858,6 +1858,10 @@ static inline int pskb_trim(struct sk_buff *skb, unsigned int len)
- return (len < skb->len) ? __pskb_trim(skb, len) : 0;
- }
-
-+extern struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
-+ unsigned int length, gfp_t gfp);
-+
-+
- /**
- * pskb_trim_unique - remove end from a paged unique (not cloned) buffer
- * @skb: buffer to alter
-@@ -1966,16 +1970,6 @@ static inline struct sk_buff *dev_alloc_skb(unsigned int length)
- }
-
-
--static inline struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
-- unsigned int length, gfp_t gfp)
--{
-- struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp);
--
-- if (NET_IP_ALIGN && skb)
-- skb_reserve(skb, NET_IP_ALIGN);
-- return skb;
--}
--
- static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
- unsigned int length)
- {
-diff --git a/include/uapi/linux/if.h b/include/uapi/linux/if.h
-index d758163..7ffa548 100644
---- a/include/uapi/linux/if.h
-+++ b/include/uapi/linux/if.h
-@@ -84,6 +84,7 @@
- #define IFF_LIVE_ADDR_CHANGE 0x100000 /* device supports hardware address
- * change when it's running */
- #define IFF_MACVLAN 0x200000 /* Macvlan device */
-+#define IFF_NO_IP_ALIGN 0x400000 /* do not ip-align allocated rx pkts */
-
-
- #define IF_GET_IFACE 0x0001 /* for querying only */
-diff --git a/net/Kconfig b/net/Kconfig
-index e411046..970c52a 100644
---- a/net/Kconfig
-+++ b/net/Kconfig
-@@ -24,6 +24,12 @@ menuconfig NET
-
- if NET
-
-+config ETHERNET_PACKET_MANGLE
-+ bool
-+ help
-+ This option can be selected by phy drivers that need to mangle
-+ packets going in or out of an ethernet device.
-+
- config WANT_COMPAT_NETLINK_MESSAGES
- bool
- help
-diff --git a/net/core/dev.c b/net/core/dev.c
-index fccc195..2e0ba23 100644
---- a/net/core/dev.c
-+++ b/net/core/dev.c
-@@ -2607,10 +2607,20 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
- if (!list_empty(&ptype_all))
- dev_queue_xmit_nit(skb, dev);
-
-- skb_len = skb->len;
-- trace_net_dev_start_xmit(skb, dev);
-- rc = ops->ndo_start_xmit(skb, dev);
-- trace_net_dev_xmit(skb, rc, dev, skb_len);
-+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
-+ if (!dev->eth_mangle_tx ||
-+ (skb = dev->eth_mangle_tx(dev, skb)) != NULL)
-+#else
-+ if (1)
-+#endif
-+ {
-+ skb_len = skb->len;
-+ trace_net_dev_start_xmit(skb, dev);
-+ rc = ops->ndo_start_xmit(skb, dev);
-+ trace_net_dev_xmit(skb, rc, dev, skb_len);
-+ } else {
-+ rc = NETDEV_TX_OK;
-+ }
- if (rc == NETDEV_TX_OK)
- txq_trans_update(txq);
- return rc;
-@@ -2626,10 +2636,20 @@ gso:
- if (!list_empty(&ptype_all))
- dev_queue_xmit_nit(nskb, dev);
-
-- skb_len = nskb->len;
-- trace_net_dev_start_xmit(nskb, dev);
-- rc = ops->ndo_start_xmit(nskb, dev);
-- trace_net_dev_xmit(nskb, rc, dev, skb_len);
-+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
-+ if (!dev->eth_mangle_tx ||
-+ (nskb = dev->eth_mangle_tx(dev, nskb)) != NULL)
-+#else
-+ if (1)
-+#endif
-+ {
-+ skb_len = nskb->len;
-+ trace_net_dev_start_xmit(nskb, dev);
-+ rc = ops->ndo_start_xmit(nskb, dev);
-+ trace_net_dev_xmit(nskb, rc, dev, skb_len);
-+ } else {
-+ rc = NETDEV_TX_OK;
-+ }
- if (unlikely(rc != NETDEV_TX_OK)) {
- if (rc & ~NETDEV_TX_MASK)
- goto out_kfree_gso_skb;
-diff --git a/net/core/skbuff.c b/net/core/skbuff.c
-index e5ae776e..400ff2a 100644
---- a/net/core/skbuff.c
-+++ b/net/core/skbuff.c
-@@ -62,6 +62,7 @@
- #include <linux/scatterlist.h>
- #include <linux/errqueue.h>
- #include <linux/prefetch.h>
-+#include <uapi/linux/if.h>
-
- #include <net/protocol.h>
- #include <net/dst.h>
-@@ -439,6 +440,22 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
- }
- EXPORT_SYMBOL(__netdev_alloc_skb);
-
-+struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
-+ unsigned int length, gfp_t gfp)
-+{
-+ struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp);
-+
-+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
-+ if (dev && (dev->priv_flags & IFF_NO_IP_ALIGN))
-+ return skb;
-+#endif
-+
-+ if (NET_IP_ALIGN && skb)
-+ skb_reserve(skb, NET_IP_ALIGN);
-+ return skb;
-+}
-+EXPORT_SYMBOL(__netdev_alloc_skb_ip_align);
-+
- void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off,
- int size, unsigned int truesize)
- {
-diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
-index 5dc638c..f4fd124 100644
---- a/net/ethernet/eth.c
-+++ b/net/ethernet/eth.c
-@@ -161,6 +161,12 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
- const struct ethhdr *eth;
-
- skb->dev = dev;
-+
-+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
-+ if (dev->eth_mangle_rx)
-+ dev->eth_mangle_rx(dev, skb);
-+#endif
-+
- skb_reset_mac_header(skb);
- skb_pull_inline(skb, ETH_HLEN);
- eth = eth_hdr(skb);
---
-1.8.5.3
-
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