BPF_TRACE_RAW_TP,
BPF_TRACE_FENTRY,
BPF_TRACE_FEXIT,
+ BPF_MODIFY_RETURN,
__MAX_BPF_ATTACH_TYPE
};
#define BPF_PSEUDO_CALL 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 */
-#define BPF_EXIST 2 /* update existing element */
-#define BPF_F_LOCK 4 /* spin_lock-ed map_lookup/map_update */
+enum {
+ BPF_ANY = 0, /* create new element or update existing */
+ BPF_NOEXIST = 1, /* create new element if it didn't exist */
+ BPF_EXIST = 2, /* update existing element */
+ BPF_F_LOCK = 4, /* spin_lock-ed map_lookup/map_update */
+};
/* flags for BPF_MAP_CREATE command */
-#define BPF_F_NO_PREALLOC (1U << 0)
+enum {
+ BPF_F_NO_PREALLOC = (1U << 0),
/* Instead of having one common LRU list in the
* BPF_MAP_TYPE_LRU_[PERCPU_]HASH map, use a percpu LRU list
* which can scale and perform better.
* Note, the LRU nodes (including free nodes) cannot be moved
* across different LRU lists.
*/
-#define BPF_F_NO_COMMON_LRU (1U << 1)
+ BPF_F_NO_COMMON_LRU = (1U << 1),
/* Specify numa node during map creation */
-#define BPF_F_NUMA_NODE (1U << 2)
-
-#define BPF_OBJ_NAME_LEN 16U
+ BPF_F_NUMA_NODE = (1U << 2),
/* Flags for accessing BPF object from syscall side. */
-#define BPF_F_RDONLY (1U << 3)
-#define BPF_F_WRONLY (1U << 4)
+ BPF_F_RDONLY = (1U << 3),
+ BPF_F_WRONLY = (1U << 4),
/* Flag for stack_map, store build_id+offset instead of pointer */
-#define BPF_F_STACK_BUILD_ID (1U << 5)
+ BPF_F_STACK_BUILD_ID = (1U << 5),
/* Zero-initialize hash function seed. This should only be used for testing. */
-#define BPF_F_ZERO_SEED (1U << 6)
+ BPF_F_ZERO_SEED = (1U << 6),
/* Flags for accessing BPF object from program side. */
-#define BPF_F_RDONLY_PROG (1U << 7)
-#define BPF_F_WRONLY_PROG (1U << 8)
+ BPF_F_RDONLY_PROG = (1U << 7),
+ BPF_F_WRONLY_PROG = (1U << 8),
/* Clone map from listener for newly accepted socket */
-#define BPF_F_CLONE (1U << 9)
+ BPF_F_CLONE = (1U << 9),
/* Enable memory-mapping BPF map */
-#define BPF_F_MMAPABLE (1U << 10)
+ BPF_F_MMAPABLE = (1U << 10),
+};
/* Flags for BPF_PROG_QUERY. */
};
};
+#define BPF_OBJ_NAME_LEN 16U
+
union bpf_attr {
struct { /* anonymous struct used by BPF_MAP_CREATE command */
__u32 map_type; /* one of enum bpf_map_type */
* of sizeof(struct perf_branch_entry).
*
* **-ENOENT** if architecture does not support branch records.
+ *
+ * int bpf_get_ns_current_pid_tgid(u64 dev, u64 ino, struct bpf_pidns_info *nsdata, u32 size)
+ * Description
+ * Returns 0 on success, values for *pid* and *tgid* as seen from the current
+ * *namespace* will be returned in *nsdata*.
+ *
+ * On failure, the returned value is one of the following:
+ *
+ * **-EINVAL** if dev and inum supplied don't match dev_t and inode number
+ * with nsfs of current task, or if dev conversion to dev_t lost high bits.
+ *
+ * **-ENOENT** if pidns does not exists for the current task.
+ *
+ * int bpf_xdp_output(void *ctx, struct bpf_map *map, u64 flags, void *data, u64 size)
+ * Description
+ * Write raw *data* blob into a special BPF perf event held by
+ * *map* of type **BPF_MAP_TYPE_PERF_EVENT_ARRAY**. This perf
+ * event must have the following attributes: **PERF_SAMPLE_RAW**
+ * as **sample_type**, **PERF_TYPE_SOFTWARE** as **type**, and
+ * **PERF_COUNT_SW_BPF_OUTPUT** as **config**.
+ *
+ * The *flags* are used to indicate the index in *map* for which
+ * the value must be put, masked with **BPF_F_INDEX_MASK**.
+ * Alternatively, *flags* can be set to **BPF_F_CURRENT_CPU**
+ * to indicate that the index of the current CPU core should be
+ * used.
+ *
+ * The value to write, of *size*, is passed through eBPF stack and
+ * pointed by *data*.
+ *
+ * *ctx* is a pointer to in-kernel struct xdp_buff.
+ *
+ * This helper is similar to **bpf_perf_eventoutput**\ () but
+ * restricted to raw_tracepoint bpf programs.
+ * Return
+ * 0 on success, or a negative error in case of failure.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
FN(tcp_send_ack), \
FN(send_signal_thread), \
FN(jiffies64), \
- FN(read_branch_records),
+ FN(read_branch_records), \
+ FN(get_ns_current_pid_tgid), \
+ FN(xdp_output),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
/* All flags used by eBPF helper functions, placed here. */
/* BPF_FUNC_skb_store_bytes flags. */
-#define BPF_F_RECOMPUTE_CSUM (1ULL << 0)
-#define BPF_F_INVALIDATE_HASH (1ULL << 1)
+enum {
+ BPF_F_RECOMPUTE_CSUM = (1ULL << 0),
+ BPF_F_INVALIDATE_HASH = (1ULL << 1),
+};
/* BPF_FUNC_l3_csum_replace and BPF_FUNC_l4_csum_replace flags.
* First 4 bits are for passing the header field size.
*/
-#define BPF_F_HDR_FIELD_MASK 0xfULL
+enum {
+ BPF_F_HDR_FIELD_MASK = 0xfULL,
+};
/* BPF_FUNC_l4_csum_replace flags. */
-#define BPF_F_PSEUDO_HDR (1ULL << 4)
-#define BPF_F_MARK_MANGLED_0 (1ULL << 5)
-#define BPF_F_MARK_ENFORCE (1ULL << 6)
+enum {
+ BPF_F_PSEUDO_HDR = (1ULL << 4),
+ BPF_F_MARK_MANGLED_0 = (1ULL << 5),
+ BPF_F_MARK_ENFORCE = (1ULL << 6),
+};
/* BPF_FUNC_clone_redirect and BPF_FUNC_redirect flags. */
-#define BPF_F_INGRESS (1ULL << 0)
+enum {
+ BPF_F_INGRESS = (1ULL << 0),
+};
/* BPF_FUNC_skb_set_tunnel_key and BPF_FUNC_skb_get_tunnel_key flags. */
-#define BPF_F_TUNINFO_IPV6 (1ULL << 0)
+enum {
+ BPF_F_TUNINFO_IPV6 = (1ULL << 0),
+};
/* flags for both BPF_FUNC_get_stackid and BPF_FUNC_get_stack. */
-#define BPF_F_SKIP_FIELD_MASK 0xffULL
-#define BPF_F_USER_STACK (1ULL << 8)
+enum {
+ BPF_F_SKIP_FIELD_MASK = 0xffULL,
+ BPF_F_USER_STACK = (1ULL << 8),
/* flags used by BPF_FUNC_get_stackid only. */
-#define BPF_F_FAST_STACK_CMP (1ULL << 9)
-#define BPF_F_REUSE_STACKID (1ULL << 10)
+ BPF_F_FAST_STACK_CMP = (1ULL << 9),
+ BPF_F_REUSE_STACKID = (1ULL << 10),
/* flags used by BPF_FUNC_get_stack only. */
-#define BPF_F_USER_BUILD_ID (1ULL << 11)
+ BPF_F_USER_BUILD_ID = (1ULL << 11),
+};
/* BPF_FUNC_skb_set_tunnel_key flags. */
-#define BPF_F_ZERO_CSUM_TX (1ULL << 1)
-#define BPF_F_DONT_FRAGMENT (1ULL << 2)
-#define BPF_F_SEQ_NUMBER (1ULL << 3)
+enum {
+ BPF_F_ZERO_CSUM_TX = (1ULL << 1),
+ BPF_F_DONT_FRAGMENT = (1ULL << 2),
+ BPF_F_SEQ_NUMBER = (1ULL << 3),
+};
/* BPF_FUNC_perf_event_output, BPF_FUNC_perf_event_read and
* BPF_FUNC_perf_event_read_value flags.
*/
-#define BPF_F_INDEX_MASK 0xffffffffULL
-#define BPF_F_CURRENT_CPU BPF_F_INDEX_MASK
+enum {
+ BPF_F_INDEX_MASK = 0xffffffffULL,
+ BPF_F_CURRENT_CPU = BPF_F_INDEX_MASK,
/* BPF_FUNC_perf_event_output for sk_buff input context. */
-#define BPF_F_CTXLEN_MASK (0xfffffULL << 32)
+ BPF_F_CTXLEN_MASK = (0xfffffULL << 32),
+};
/* Current network namespace */
-#define BPF_F_CURRENT_NETNS (-1L)
+enum {
+ BPF_F_CURRENT_NETNS = (-1L),
+};
/* BPF_FUNC_skb_adjust_room flags. */
-#define BPF_F_ADJ_ROOM_FIXED_GSO (1ULL << 0)
+enum {
+ BPF_F_ADJ_ROOM_FIXED_GSO = (1ULL << 0),
+ BPF_F_ADJ_ROOM_ENCAP_L3_IPV4 = (1ULL << 1),
+ BPF_F_ADJ_ROOM_ENCAP_L3_IPV6 = (1ULL << 2),
+ BPF_F_ADJ_ROOM_ENCAP_L4_GRE = (1ULL << 3),
+ BPF_F_ADJ_ROOM_ENCAP_L4_UDP = (1ULL << 4),
+};
-#define BPF_ADJ_ROOM_ENCAP_L2_MASK 0xff
-#define BPF_ADJ_ROOM_ENCAP_L2_SHIFT 56
+enum {
+ BPF_ADJ_ROOM_ENCAP_L2_MASK = 0xff,
+ BPF_ADJ_ROOM_ENCAP_L2_SHIFT = 56,
+};
-#define BPF_F_ADJ_ROOM_ENCAP_L3_IPV4 (1ULL << 1)
-#define BPF_F_ADJ_ROOM_ENCAP_L3_IPV6 (1ULL << 2)
-#define BPF_F_ADJ_ROOM_ENCAP_L4_GRE (1ULL << 3)
-#define BPF_F_ADJ_ROOM_ENCAP_L4_UDP (1ULL << 4)
#define BPF_F_ADJ_ROOM_ENCAP_L2(len) (((__u64)len & \
BPF_ADJ_ROOM_ENCAP_L2_MASK) \
<< BPF_ADJ_ROOM_ENCAP_L2_SHIFT)
/* BPF_FUNC_sysctl_get_name flags. */
-#define BPF_F_SYSCTL_BASE_NAME (1ULL << 0)
+enum {
+ BPF_F_SYSCTL_BASE_NAME = (1ULL << 0),
+};
/* BPF_FUNC_sk_storage_get flags */
-#define BPF_SK_STORAGE_GET_F_CREATE (1ULL << 0)
+enum {
+ BPF_SK_STORAGE_GET_F_CREATE = (1ULL << 0),
+};
/* BPF_FUNC_read_branch_records flags. */
-#define BPF_F_GET_BRANCH_RECORDS_SIZE (1ULL << 0)
+enum {
+ BPF_F_GET_BRANCH_RECORDS_SIZE = (1ULL << 0),
+};
/* Mode for BPF_FUNC_skb_adjust_room helper. */
enum bpf_adj_room_mode {
__u32 wire_len;
__u32 gso_segs;
__bpf_md_ptr(struct bpf_sock *, sk);
+ __u32 gso_size;
};
struct bpf_tunnel_key {
};
/* Definitions for bpf_sock_ops_cb_flags */
-#define BPF_SOCK_OPS_RTO_CB_FLAG (1<<0)
-#define BPF_SOCK_OPS_RETRANS_CB_FLAG (1<<1)
-#define BPF_SOCK_OPS_STATE_CB_FLAG (1<<2)
-#define BPF_SOCK_OPS_RTT_CB_FLAG (1<<3)
-#define BPF_SOCK_OPS_ALL_CB_FLAGS 0xF /* Mask of all currently
- * supported cb flags
- */
+enum {
+ BPF_SOCK_OPS_RTO_CB_FLAG = (1<<0),
+ BPF_SOCK_OPS_RETRANS_CB_FLAG = (1<<1),
+ BPF_SOCK_OPS_STATE_CB_FLAG = (1<<2),
+ BPF_SOCK_OPS_RTT_CB_FLAG = (1<<3),
+/* Mask of all currently supported cb flags */
+ BPF_SOCK_OPS_ALL_CB_FLAGS = 0xF,
+};
/* List of known BPF sock_ops operators.
* New entries can only be added at the end
BPF_TCP_MAX_STATES /* Leave at the end! */
};
-#define TCP_BPF_IW 1001 /* Set TCP initial congestion window */
-#define TCP_BPF_SNDCWND_CLAMP 1002 /* Set sndcwnd_clamp */
+enum {
+ TCP_BPF_IW = 1001, /* Set TCP initial congestion window */
+ TCP_BPF_SNDCWND_CLAMP = 1002, /* Set sndcwnd_clamp */
+};
struct bpf_perf_event_value {
__u64 counter;
__u64 running;
};
-#define BPF_DEVCG_ACC_MKNOD (1ULL << 0)
-#define BPF_DEVCG_ACC_READ (1ULL << 1)
-#define BPF_DEVCG_ACC_WRITE (1ULL << 2)
+enum {
+ BPF_DEVCG_ACC_MKNOD = (1ULL << 0),
+ BPF_DEVCG_ACC_READ = (1ULL << 1),
+ BPF_DEVCG_ACC_WRITE = (1ULL << 2),
+};
-#define BPF_DEVCG_DEV_BLOCK (1ULL << 0)
-#define BPF_DEVCG_DEV_CHAR (1ULL << 1)
+enum {
+ BPF_DEVCG_DEV_BLOCK = (1ULL << 0),
+ BPF_DEVCG_DEV_CHAR = (1ULL << 1),
+};
struct bpf_cgroup_dev_ctx {
/* access_type encoded as (BPF_DEVCG_ACC_* << 16) | BPF_DEVCG_DEV_* */
/* DIRECT: Skip the FIB rules and go to FIB table associated with device
* OUTPUT: Do lookup from egress perspective; default is ingress
*/
-#define BPF_FIB_LOOKUP_DIRECT (1U << 0)
-#define BPF_FIB_LOOKUP_OUTPUT (1U << 1)
+enum {
+ BPF_FIB_LOOKUP_DIRECT = (1U << 0),
+ BPF_FIB_LOOKUP_OUTPUT = (1U << 1),
+};
enum {
BPF_FIB_LKUP_RET_SUCCESS, /* lookup successful */
BPF_FD_TYPE_URETPROBE, /* filename + offset */
};
-#define BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG (1U << 0)
-#define BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL (1U << 1)
-#define BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP (1U << 2)
+enum {
+ BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG = (1U << 0),
+ BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL = (1U << 1),
+ BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP = (1U << 2),
+};
struct bpf_flow_keys {
__u16 nhoff;
__s32 retval;
};
+struct bpf_pidns_info {
+ __u32 pid;
+ __u32 tgid;
+};
#endif /* __LINUX_BPF_H__ */
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