1 files changed, 63 insertions, 0 deletions

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 45da7ec7d274..a9ebdf5701e8 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -118,8 +118,13 @@ 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,
 };
 
+#define BPF_PSEUDO_MAP_FD       1
+
 /* flags for BPF_MAP_UPDATE_ELEM command */
 #define BPF_ANY         0 /* create new element or update existing */
 #define BPF_NOEXIST     1 /* create new element if it didn't exist */
@@ -151,6 +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)));
 
@@ -162,7 +168,64 @@ 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->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
+         *         other bits - reserved
+         * Return: 0 on success
+         */
+        BPF_FUNC_skb_store_bytes,
+
+        /**
+         * l3_csum_replace(skb, offset, from, to, flags) - recompute IP checksum
+         * @skb: pointer to skb
+         * @offset: offset within packet where IP checksum is located
+         * @from: old value of header field
+         * @to: new value of header field
+         * @flags: bits 0-3 - size of header field
+         *         other bits - reserved
+         * Return: 0 on success
+         */
+        BPF_FUNC_l3_csum_replace,
+
+        /**
+         * l4_csum_replace(skb, offset, from, to, flags) - recompute TCP/UDP checksum
+         * @skb: pointer to skb
+         * @offset: offset within packet where TCP/UDP checksum is located
+         * @from: old value of header field
+         * @to: new value of header field
+         * @flags: bits 0-3 - size of header field
+         *         bit 4 - is pseudo header
+         *         other bits - reserved
+         * Return: 0 on success
+         */
+        BPF_FUNC_l4_csum_replace,
         __BPF_FUNC_MAX_ID,
 };
 
+/* user accessible mirror of in-kernel sk_buff.
+ * new fields can only be added to the end of this structure
+ */
+struct __sk_buff {
+        __u32 len;
+        __u32 pkt_type;
+        __u32 mark;
+        __u32 queue_mapping;
+        __u32 protocol;
+        __u32 vlan_present;
+        __u32 vlan_tci;
+        __u32 vlan_proto;
+        __u32 priority;
+};
+
 #endif /* _UAPI__LINUX_BPF_H__ */