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authorHauke Mehrtens <hauke@hauke-m.de>2017-10-29 19:32:10 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2017-12-16 22:11:19 +0100
commitb3f95490b9bec020314eb32016988ee262d52884 (patch)
treef8289c19587108bb3b687575776f559eee6f01fd /target/linux/generic/hack-4.14/721-phy_packets.patch
parenta362df6f253e4460504fd870d6a7af40ef86ad70 (diff)
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kernel: generic: Add kernel 4.14 support
This adds initial support for kernel 4.14 based on the patches for kernel 4.9. In the configuration I deactivated some of the new possible security features like: CONFIG_REFCOUNT_FULL CONFIG_SLAB_FREELIST_HARDENED CONFIG_SOFTLOCKUP_DETECTOR CONFIG_WARN_ALL_UNSEEDED_RANDOM And these overlay FS options are also deactivated: CONFIG_OVERLAY_FS_INDEX CONFIG_OVERLAY_FS_REDIRECT_DIR I activated this: CONFIG_FORTIFY_SOURCE CONFIG_POSIX_TIMERS CONFIG_SLAB_MERGE_DEFAULT CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED I am not sure if I did the porting correct for the following patches: target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch target/linux/generic/hack-4.14/220-gc_sections.patch target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch target/linux/generic/pending-4.14/305-mips_module_reloc.patch target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/generic/hack-4.14/721-phy_packets.patch')
-rw-r--r--target/linux/generic/hack-4.14/721-phy_packets.patch176
1 files changed, 176 insertions, 0 deletions
diff --git a/target/linux/generic/hack-4.14/721-phy_packets.patch b/target/linux/generic/hack-4.14/721-phy_packets.patch
new file mode 100644
index 0000000000..f6ac7147f0
--- /dev/null
+++ b/target/linux/generic/hack-4.14/721-phy_packets.patch
@@ -0,0 +1,176 @@
+From ffe387740bbe88dd88bbe04d6375902708003d6e Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@nbd.name>
+Date: Fri, 7 Jul 2017 17:25:00 +0200
+Subject: net: add packet mangeling patch
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ include/linux/netdevice.h | 11 +++++++++++
+ include/linux/skbuff.h | 14 ++++----------
+ net/Kconfig | 6 ++++++
+ net/core/dev.c | 18 ++++++++++++++----
+ net/core/skbuff.c | 17 +++++++++++++++++
+ net/ethernet/eth.c | 6 ++++++
+ 6 files changed, 58 insertions(+), 14 deletions(-)
+
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1386,6 +1386,7 @@ enum netdev_priv_flags {
+ IFF_RXFH_CONFIGURED = 1<<25,
+ IFF_PHONY_HEADROOM = 1<<26,
+ IFF_MACSEC = 1<<27,
++ IFF_NO_IP_ALIGN = 1<<28,
+ };
+
+ #define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
+@@ -1415,6 +1416,7 @@ enum netdev_priv_flags {
+ #define IFF_TEAM IFF_TEAM
+ #define IFF_RXFH_CONFIGURED IFF_RXFH_CONFIGURED
+ #define IFF_MACSEC IFF_MACSEC
++#define IFF_NO_IP_ALIGN IFF_NO_IP_ALIGN
+
+ /**
+ * struct net_device - The DEVICE structure.
+@@ -1701,6 +1703,11 @@ struct net_device {
+ const struct xfrmdev_ops *xfrmdev_ops;
+ #endif
+
++#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
++
+ const struct header_ops *header_ops;
+
+ unsigned int flags;
+@@ -1770,6 +1777,10 @@ struct net_device {
+ struct mpls_dev __rcu *mpls_ptr;
+ #endif
+
++#ifdef CONFIG_ETHERNET_PACKET_MANGLE
++ void *phy_ptr; /* PHY device specific data */
++#endif
++
+ /*
+ * Cache lines mostly used on receive path (including eth_type_trans())
+ */
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -2492,6 +2492,10 @@ static inline int pskb_trim(struct sk_bu
+ 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
+@@ -2622,16 +2626,6 @@ static inline struct sk_buff *dev_alloc_
+ }
+
+
+-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)
+ {
+--- a/net/Kconfig
++++ b/net/Kconfig
+@@ -25,6 +25,12 @@ 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
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -2974,10 +2974,20 @@ static int xmit_one(struct sk_buff *skb,
+ if (!list_empty(&ptype_all) || !list_empty(&dev->ptype_all))
+ dev_queue_xmit_nit(skb, dev);
+
+- len = skb->len;
+- trace_net_dev_start_xmit(skb, dev);
+- rc = netdev_start_xmit(skb, dev, txq, more);
+- trace_net_dev_xmit(skb, rc, dev, len);
++#ifdef CONFIG_ETHERNET_PACKET_MANGLE
++ if (!dev->eth_mangle_tx ||
++ (skb = dev->eth_mangle_tx(dev, skb)) != NULL)
++#else
++ if (1)
++#endif
++ {
++ len = skb->len;
++ trace_net_dev_start_xmit(skb, dev);
++ rc = netdev_start_xmit(skb, dev, txq, more);
++ trace_net_dev_xmit(skb, rc, dev, len);
++ } else {
++ rc = NETDEV_TX_OK;
++ }
+
+ return rc;
+ }
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -64,6 +64,7 @@
+ #include <linux/errqueue.h>
+ #include <linux/prefetch.h>
+ #include <linux/if_vlan.h>
++#include <linux/if.h>
+
+ #include <net/protocol.h>
+ #include <net/dst.h>
+@@ -503,6 +504,22 @@ skb_fail:
+ }
+ EXPORT_SYMBOL(__napi_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)
+ {
+--- a/net/ethernet/eth.c
++++ b/net/ethernet/eth.c
+@@ -172,6 +172,12 @@ __be16 eth_type_trans(struct sk_buff *sk
+ 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);
+
+ eth = (struct ethhdr *)skb->data;