update headers to reflect BPF changes

Reclone sanitized headers from 4.1-rc

include/linux/bpf.h

@@ -118,6 +118,7 @@ enum bpf_map_type {
 enum bpf_prog_type {
 	BPF_PROG_TYPE_UNSPEC,
 	BPF_PROG_TYPE_SOCKET_FILTER,
+	BPF_PROG_TYPE_KPROBE,
 	BPF_PROG_TYPE_SCHED_CLS,
 	BPF_PROG_TYPE_SCHED_ACT,
 };
@@ -155,6 +156,7 @@ union bpf_attr {
 		__u32		log_level;	/* verbosity level of verifier */
 		__u32		log_size;	/* size of user buffer */
 		__aligned_u64	log_buf;	/* user supplied buffer */
+		__u32		kern_version;	/* checked when prog_type=kprobe */
 	};
 } __attribute__((aligned(8)));
 
@@ -166,13 +168,16 @@ enum bpf_func_id {
 	BPF_FUNC_map_lookup_elem, /* void *map_lookup_elem(&map, &key) */
 	BPF_FUNC_map_update_elem, /* int map_update_elem(&map, &key, &value, flags) */
 	BPF_FUNC_map_delete_elem, /* int map_delete_elem(&map, &key) */
+	BPF_FUNC_probe_read,      /* int bpf_probe_read(void *dst, int size, void *src) */
+	BPF_FUNC_ktime_get_ns,    /* u64 bpf_ktime_get_ns(void) */
+	BPF_FUNC_trace_printk,    /* int bpf_trace_printk(const char *fmt, int fmt_size, ...) */
 	BPF_FUNC_get_prandom_u32, /* u32 prandom_u32(void) */
 	BPF_FUNC_get_smp_processor_id, /* u32 raw_smp_processor_id(void) */
 
 	/**
 	 * skb_store_bytes(skb, offset, from, len, flags) - store bytes into packet
 	 * @skb: pointer to skb
-	 * @offset: offset within packet from skb->data
+	 * @offset: offset within packet from skb->mac_header
 	 * @from: pointer where to copy bytes from
 	 * @len: number of bytes to store into packet
 	 * @flags: bit 0 - if true, recompute skb->csum

include/linux/filter.h

@@ -79,8 +79,11 @@ struct sock_fprog {	/* Required for SO_ATTACH_FILTER. */
 #define SKF_AD_RANDOM	56
 #define SKF_AD_VLAN_TPID	60
 #define SKF_AD_MAX	64
+
 #define SKF_NET_OFF	(-0x100000)
 #define SKF_LL_OFF	(-0x200000)
 
+#define BPF_NET_OFF	SKF_NET_OFF
+#define BPF_LL_OFF	SKF_LL_OFF
 
 #endif /* __LINUX_FILTER_H__ */