shared/linux: update kernel headers to 5.19-rc1
This commit is contained in:
+442
-11
@@ -330,6 +330,8 @@ union bpf_iter_link_info {
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* *ctx_out*, *data_in* and *data_out* must be NULL.
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* *repeat* must be zero.
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*
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* BPF_PROG_RUN is an alias for BPF_PROG_TEST_RUN.
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*
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* Return
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* Returns zero on success. On error, -1 is returned and *errno*
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* is set appropriately.
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@@ -995,6 +997,7 @@ enum bpf_attach_type {
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BPF_SK_REUSEPORT_SELECT,
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BPF_SK_REUSEPORT_SELECT_OR_MIGRATE,
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BPF_PERF_EVENT,
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BPF_TRACE_KPROBE_MULTI,
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__MAX_BPF_ATTACH_TYPE
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};
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@@ -1009,6 +1012,8 @@ enum bpf_link_type {
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BPF_LINK_TYPE_NETNS = 5,
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BPF_LINK_TYPE_XDP = 6,
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BPF_LINK_TYPE_PERF_EVENT = 7,
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BPF_LINK_TYPE_KPROBE_MULTI = 8,
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BPF_LINK_TYPE_STRUCT_OPS = 9,
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MAX_BPF_LINK_TYPE,
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};
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@@ -1111,6 +1116,16 @@ enum bpf_link_type {
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*/
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#define BPF_F_SLEEPABLE (1U << 4)
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/* If BPF_F_XDP_HAS_FRAGS is used in BPF_PROG_LOAD command, the loaded program
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* fully support xdp frags.
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*/
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#define BPF_F_XDP_HAS_FRAGS (1U << 5)
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/* link_create.kprobe_multi.flags used in LINK_CREATE command for
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* BPF_TRACE_KPROBE_MULTI attach type to create return probe.
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*/
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#define BPF_F_KPROBE_MULTI_RETURN (1U << 0)
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/* When BPF ldimm64's insn[0].src_reg != 0 then this can have
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* the following extensions:
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*
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@@ -1225,6 +1240,8 @@ enum {
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/* If set, run the test on the cpu specified by bpf_attr.test.cpu */
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#define BPF_F_TEST_RUN_ON_CPU (1U << 0)
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/* If set, XDP frames will be transmitted after processing */
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#define BPF_F_TEST_XDP_LIVE_FRAMES (1U << 1)
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/* type for BPF_ENABLE_STATS */
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enum bpf_stats_type {
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@@ -1342,8 +1359,10 @@ union bpf_attr {
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/* or valid module BTF object fd or 0 to attach to vmlinux */
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__u32 attach_btf_obj_fd;
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};
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__u32 :32; /* pad */
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__u32 core_relo_cnt; /* number of bpf_core_relo */
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__aligned_u64 fd_array; /* array of FDs */
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__aligned_u64 core_relos;
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__u32 core_relo_rec_size; /* sizeof(struct bpf_core_relo) */
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};
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struct { /* anonymous struct used by BPF_OBJ_* commands */
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@@ -1384,6 +1403,7 @@ union bpf_attr {
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__aligned_u64 ctx_out;
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__u32 flags;
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__u32 cpu;
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__u32 batch_size;
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} test;
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struct { /* anonymous struct used by BPF_*_GET_*_ID */
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@@ -1463,6 +1483,22 @@ union bpf_attr {
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*/
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__u64 bpf_cookie;
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} perf_event;
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struct {
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__u32 flags;
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__u32 cnt;
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__aligned_u64 syms;
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__aligned_u64 addrs;
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__aligned_u64 cookies;
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} kprobe_multi;
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struct {
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/* this is overlaid with the target_btf_id above. */
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__u32 target_btf_id;
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/* black box user-provided value passed through
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* to BPF program at the execution time and
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* accessible through bpf_get_attach_cookie() BPF helper
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*/
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__u64 cookie;
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} tracing;
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};
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} link_create;
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@@ -1744,7 +1780,7 @@ union bpf_attr {
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* if the maximum number of tail calls has been reached for this
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* chain of programs. This limit is defined in the kernel by the
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* macro **MAX_TAIL_CALL_CNT** (not accessible to user space),
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* which is currently set to 32.
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* which is currently set to 33.
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* Return
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* 0 on success, or a negative error in case of failure.
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*
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@@ -1773,6 +1809,8 @@ union bpf_attr {
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* 0 on success, or a negative error in case of failure.
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*
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* u64 bpf_get_current_pid_tgid(void)
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* Description
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* Get the current pid and tgid.
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* Return
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* A 64-bit integer containing the current tgid and pid, and
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* created as such:
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@@ -1780,6 +1818,8 @@ union bpf_attr {
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* *current_task*\ **->pid**.
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*
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* u64 bpf_get_current_uid_gid(void)
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* Description
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* Get the current uid and gid.
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* Return
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* A 64-bit integer containing the current GID and UID, and
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* created as such: *current_gid* **<< 32 \|** *current_uid*.
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@@ -2254,6 +2294,8 @@ union bpf_attr {
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* The 32-bit hash.
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*
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* u64 bpf_get_current_task(void)
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* Description
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* Get the current task.
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* Return
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* A pointer to the current task struct.
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*
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@@ -2284,8 +2326,8 @@ union bpf_attr {
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* Return
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* The return value depends on the result of the test, and can be:
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*
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* * 0, if current task belongs to the cgroup2.
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* * 1, if current task does not belong to the cgroup2.
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* * 1, if current task belongs to the cgroup2.
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* * 0, if current task does not belong to the cgroup2.
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* * A negative error code, if an error occurred.
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*
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* long bpf_skb_change_tail(struct sk_buff *skb, u32 len, u64 flags)
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@@ -2367,6 +2409,8 @@ union bpf_attr {
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* indicate that the hash is outdated and to trigger a
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* recalculation the next time the kernel tries to access this
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* hash or when the **bpf_get_hash_recalc**\ () helper is called.
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* Return
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* void.
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*
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* long bpf_get_numa_node_id(void)
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* Description
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@@ -2464,6 +2508,8 @@ union bpf_attr {
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* A 8-byte long unique number or 0 if *sk* is NULL.
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*
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* u32 bpf_get_socket_uid(struct sk_buff *skb)
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* Description
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* Get the owner UID of the socked associated to *skb*.
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* Return
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* The owner UID of the socket associated to *skb*. If the socket
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* is **NULL**, or if it is not a full socket (i.e. if it is a
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@@ -2973,8 +3019,8 @@ union bpf_attr {
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*
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* # sysctl kernel.perf_event_max_stack=<new value>
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* Return
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* A non-negative value equal to or less than *size* on success,
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* or a negative error in case of failure.
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* The non-negative copied *buf* length equal to or less than
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* *size* on success, or a negative error in case of failure.
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*
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* long bpf_skb_load_bytes_relative(const void *skb, u32 offset, void *to, u32 len, u32 start_header)
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* Description
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@@ -3238,6 +3284,9 @@ union bpf_attr {
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* The id is returned or 0 in case the id could not be retrieved.
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*
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* u64 bpf_get_current_cgroup_id(void)
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* Description
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* Get the current cgroup id based on the cgroup within which
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* the current task is running.
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* Return
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* A 64-bit integer containing the current cgroup id based
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* on the cgroup within which the current task is running.
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@@ -4277,8 +4326,8 @@ union bpf_attr {
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*
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* # sysctl kernel.perf_event_max_stack=<new value>
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* Return
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* A non-negative value equal to or less than *size* on success,
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* or a negative error in case of failure.
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* The non-negative copied *buf* length equal to or less than
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* *size* on success, or a negative error in case of failure.
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*
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* long bpf_load_hdr_opt(struct bpf_sock_ops *skops, void *searchby_res, u32 len, u64 flags)
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* Description
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@@ -4938,6 +4987,268 @@ union bpf_attr {
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* **-ENOENT** if symbol is not found.
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*
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* **-EPERM** if caller does not have permission to obtain kernel address.
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*
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* long bpf_find_vma(struct task_struct *task, u64 addr, void *callback_fn, void *callback_ctx, u64 flags)
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* Description
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* Find vma of *task* that contains *addr*, call *callback_fn*
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* function with *task*, *vma*, and *callback_ctx*.
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* The *callback_fn* should be a static function and
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* the *callback_ctx* should be a pointer to the stack.
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* The *flags* is used to control certain aspects of the helper.
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* Currently, the *flags* must be 0.
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*
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* The expected callback signature is
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*
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* long (\*callback_fn)(struct task_struct \*task, struct vm_area_struct \*vma, void \*callback_ctx);
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*
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* Return
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* 0 on success.
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* **-ENOENT** if *task->mm* is NULL, or no vma contains *addr*.
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* **-EBUSY** if failed to try lock mmap_lock.
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* **-EINVAL** for invalid **flags**.
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*
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* long bpf_loop(u32 nr_loops, void *callback_fn, void *callback_ctx, u64 flags)
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* Description
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* For **nr_loops**, call **callback_fn** function
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* with **callback_ctx** as the context parameter.
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* The **callback_fn** should be a static function and
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* the **callback_ctx** should be a pointer to the stack.
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* The **flags** is used to control certain aspects of the helper.
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* Currently, the **flags** must be 0. Currently, nr_loops is
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* limited to 1 << 23 (~8 million) loops.
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*
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* long (\*callback_fn)(u32 index, void \*ctx);
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*
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* where **index** is the current index in the loop. The index
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* is zero-indexed.
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*
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* If **callback_fn** returns 0, the helper will continue to the next
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* loop. If return value is 1, the helper will skip the rest of
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* the loops and return. Other return values are not used now,
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* and will be rejected by the verifier.
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*
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* Return
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* The number of loops performed, **-EINVAL** for invalid **flags**,
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* **-E2BIG** if **nr_loops** exceeds the maximum number of loops.
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*
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* long bpf_strncmp(const char *s1, u32 s1_sz, const char *s2)
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* Description
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* Do strncmp() between **s1** and **s2**. **s1** doesn't need
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* to be null-terminated and **s1_sz** is the maximum storage
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* size of **s1**. **s2** must be a read-only string.
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* Return
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* An integer less than, equal to, or greater than zero
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* if the first **s1_sz** bytes of **s1** is found to be
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* less than, to match, or be greater than **s2**.
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*
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* long bpf_get_func_arg(void *ctx, u32 n, u64 *value)
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* Description
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* Get **n**-th argument (zero based) of the traced function (for tracing programs)
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* returned in **value**.
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*
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* Return
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* 0 on success.
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* **-EINVAL** if n >= arguments count of traced function.
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*
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* long bpf_get_func_ret(void *ctx, u64 *value)
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* Description
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* Get return value of the traced function (for tracing programs)
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* in **value**.
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*
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* Return
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* 0 on success.
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* **-EOPNOTSUPP** for tracing programs other than BPF_TRACE_FEXIT or BPF_MODIFY_RETURN.
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*
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* long bpf_get_func_arg_cnt(void *ctx)
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* Description
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* Get number of arguments of the traced function (for tracing programs).
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*
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* Return
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* The number of arguments of the traced function.
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*
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* int bpf_get_retval(void)
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* Description
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* Get the syscall's return value that will be returned to userspace.
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*
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* This helper is currently supported by cgroup programs only.
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* Return
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* The syscall's return value.
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*
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* int bpf_set_retval(int retval)
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* Description
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* Set the syscall's return value that will be returned to userspace.
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*
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* This helper is currently supported by cgroup programs only.
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* Return
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* 0 on success, or a negative error in case of failure.
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*
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* u64 bpf_xdp_get_buff_len(struct xdp_buff *xdp_md)
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* Description
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* Get the total size of a given xdp buff (linear and paged area)
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* Return
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* The total size of a given xdp buffer.
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*
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* long bpf_xdp_load_bytes(struct xdp_buff *xdp_md, u32 offset, void *buf, u32 len)
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* Description
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* This helper is provided as an easy way to load data from a
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* xdp buffer. It can be used to load *len* bytes from *offset* from
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* the frame associated to *xdp_md*, into the buffer pointed by
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* *buf*.
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* Return
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* 0 on success, or a negative error in case of failure.
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*
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* long bpf_xdp_store_bytes(struct xdp_buff *xdp_md, u32 offset, void *buf, u32 len)
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* Description
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* Store *len* bytes from buffer *buf* into the frame
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* associated to *xdp_md*, at *offset*.
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* Return
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* 0 on success, or a negative error in case of failure.
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*
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* long bpf_copy_from_user_task(void *dst, u32 size, const void *user_ptr, struct task_struct *tsk, u64 flags)
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* Description
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* Read *size* bytes from user space address *user_ptr* in *tsk*'s
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* address space, and stores the data in *dst*. *flags* is not
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* used yet and is provided for future extensibility. This helper
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* can only be used by sleepable programs.
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* Return
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* 0 on success, or a negative error in case of failure. On error
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* *dst* buffer is zeroed out.
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*
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* long bpf_skb_set_tstamp(struct sk_buff *skb, u64 tstamp, u32 tstamp_type)
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* Description
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* Change the __sk_buff->tstamp_type to *tstamp_type*
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* and set *tstamp* to the __sk_buff->tstamp together.
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*
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* If there is no need to change the __sk_buff->tstamp_type,
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* the tstamp value can be directly written to __sk_buff->tstamp
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* instead.
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*
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* BPF_SKB_TSTAMP_DELIVERY_MONO is the only tstamp that
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* will be kept during bpf_redirect_*(). A non zero
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* *tstamp* must be used with the BPF_SKB_TSTAMP_DELIVERY_MONO
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* *tstamp_type*.
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*
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* A BPF_SKB_TSTAMP_UNSPEC *tstamp_type* can only be used
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* with a zero *tstamp*.
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*
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* Only IPv4 and IPv6 skb->protocol are supported.
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*
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* This function is most useful when it needs to set a
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* mono delivery time to __sk_buff->tstamp and then
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* bpf_redirect_*() to the egress of an iface. For example,
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* changing the (rcv) timestamp in __sk_buff->tstamp at
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* ingress to a mono delivery time and then bpf_redirect_*()
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* to sch_fq@phy-dev.
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* Return
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* 0 on success.
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* **-EINVAL** for invalid input
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* **-EOPNOTSUPP** for unsupported protocol
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*
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* long bpf_ima_file_hash(struct file *file, void *dst, u32 size)
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* Description
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* Returns a calculated IMA hash of the *file*.
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* If the hash is larger than *size*, then only *size*
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* bytes will be copied to *dst*
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* Return
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* The **hash_algo** is returned on success,
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* **-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
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* invalid arguments are passed.
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*
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* void *bpf_kptr_xchg(void *map_value, void *ptr)
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* Description
|
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* Exchange kptr at pointer *map_value* with *ptr*, and return the
|
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* old value. *ptr* can be NULL, otherwise it must be a referenced
|
||||
* pointer which will be released when this helper is called.
|
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* Return
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* The old value of kptr (which can be NULL). The returned pointer
|
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* if not NULL, is a reference which must be released using its
|
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* corresponding release function, or moved into a BPF map before
|
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* program exit.
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*
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* void *bpf_map_lookup_percpu_elem(struct bpf_map *map, const void *key, u32 cpu)
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* Description
|
||||
* Perform a lookup in *percpu map* for an entry associated to
|
||||
* *key* on *cpu*.
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* Return
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* Map value associated to *key* on *cpu*, or **NULL** if no entry
|
||||
* was found or *cpu* is invalid.
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*
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* struct mptcp_sock *bpf_skc_to_mptcp_sock(void *sk)
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* Description
|
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* Dynamically cast a *sk* pointer to a *mptcp_sock* pointer.
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* Return
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* *sk* if casting is valid, or **NULL** otherwise.
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*
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* long bpf_dynptr_from_mem(void *data, u32 size, u64 flags, struct bpf_dynptr *ptr)
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* Description
|
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* Get a dynptr to local memory *data*.
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*
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* *data* must be a ptr to a map value.
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* The maximum *size* supported is DYNPTR_MAX_SIZE.
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* *flags* is currently unused.
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* Return
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* 0 on success, -E2BIG if the size exceeds DYNPTR_MAX_SIZE,
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* -EINVAL if flags is not 0.
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*
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* long bpf_ringbuf_reserve_dynptr(void *ringbuf, u32 size, u64 flags, struct bpf_dynptr *ptr)
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* Description
|
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* Reserve *size* bytes of payload in a ring buffer *ringbuf*
|
||||
* through the dynptr interface. *flags* must be 0.
|
||||
*
|
||||
* Please note that a corresponding bpf_ringbuf_submit_dynptr or
|
||||
* bpf_ringbuf_discard_dynptr must be called on *ptr*, even if the
|
||||
* reservation fails. This is enforced by the verifier.
|
||||
* Return
|
||||
* 0 on success, or a negative error in case of failure.
|
||||
*
|
||||
* void bpf_ringbuf_submit_dynptr(struct bpf_dynptr *ptr, u64 flags)
|
||||
* Description
|
||||
* Submit reserved ring buffer sample, pointed to by *data*,
|
||||
* through the dynptr interface. This is a no-op if the dynptr is
|
||||
* invalid/null.
|
||||
*
|
||||
* For more information on *flags*, please see
|
||||
* 'bpf_ringbuf_submit'.
|
||||
* Return
|
||||
* Nothing. Always succeeds.
|
||||
*
|
||||
* void bpf_ringbuf_discard_dynptr(struct bpf_dynptr *ptr, u64 flags)
|
||||
* Description
|
||||
* Discard reserved ring buffer sample through the dynptr
|
||||
* interface. This is a no-op if the dynptr is invalid/null.
|
||||
*
|
||||
* For more information on *flags*, please see
|
||||
* 'bpf_ringbuf_discard'.
|
||||
* Return
|
||||
* Nothing. Always succeeds.
|
||||
*
|
||||
* long bpf_dynptr_read(void *dst, u32 len, struct bpf_dynptr *src, u32 offset)
|
||||
* Description
|
||||
* Read *len* bytes from *src* into *dst*, starting from *offset*
|
||||
* into *src*.
|
||||
* Return
|
||||
* 0 on success, -E2BIG if *offset* + *len* exceeds the length
|
||||
* of *src*'s data, -EINVAL if *src* is an invalid dynptr.
|
||||
*
|
||||
* long bpf_dynptr_write(struct bpf_dynptr *dst, u32 offset, void *src, u32 len)
|
||||
* Description
|
||||
* Write *len* bytes from *src* into *dst*, starting from *offset*
|
||||
* into *dst*.
|
||||
* Return
|
||||
* 0 on success, -E2BIG if *offset* + *len* exceeds the length
|
||||
* of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst*
|
||||
* is a read-only dynptr.
|
||||
*
|
||||
* void *bpf_dynptr_data(struct bpf_dynptr *ptr, u32 offset, u32 len)
|
||||
* Description
|
||||
* Get a pointer to the underlying dynptr data.
|
||||
*
|
||||
* *len* must be a statically known value. The returned data slice
|
||||
* is invalidated whenever the dynptr is invalidated.
|
||||
* Return
|
||||
* Pointer to the underlying dynptr data, NULL if the dynptr is
|
||||
* read-only, if the dynptr is invalid, or if the offset and length
|
||||
* is out of bounds.
|
||||
*/
|
||||
#define __BPF_FUNC_MAPPER(FN) \
|
||||
FN(unspec), \
|
||||
@@ -5120,6 +5431,30 @@ union bpf_attr {
|
||||
FN(trace_vprintk), \
|
||||
FN(skc_to_unix_sock), \
|
||||
FN(kallsyms_lookup_name), \
|
||||
FN(find_vma), \
|
||||
FN(loop), \
|
||||
FN(strncmp), \
|
||||
FN(get_func_arg), \
|
||||
FN(get_func_ret), \
|
||||
FN(get_func_arg_cnt), \
|
||||
FN(get_retval), \
|
||||
FN(set_retval), \
|
||||
FN(xdp_get_buff_len), \
|
||||
FN(xdp_load_bytes), \
|
||||
FN(xdp_store_bytes), \
|
||||
FN(copy_from_user_task), \
|
||||
FN(skb_set_tstamp), \
|
||||
FN(ima_file_hash), \
|
||||
FN(kptr_xchg), \
|
||||
FN(map_lookup_percpu_elem), \
|
||||
FN(skc_to_mptcp_sock), \
|
||||
FN(dynptr_from_mem), \
|
||||
FN(ringbuf_reserve_dynptr), \
|
||||
FN(ringbuf_submit_dynptr), \
|
||||
FN(ringbuf_discard_dynptr), \
|
||||
FN(dynptr_read), \
|
||||
FN(dynptr_write), \
|
||||
FN(dynptr_data), \
|
||||
/* */
|
||||
|
||||
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
|
||||
@@ -5309,6 +5644,15 @@ union { \
|
||||
__u64 :64; \
|
||||
} __attribute__((aligned(8)))
|
||||
|
||||
enum {
|
||||
BPF_SKB_TSTAMP_UNSPEC,
|
||||
BPF_SKB_TSTAMP_DELIVERY_MONO, /* tstamp has mono delivery time */
|
||||
/* For any BPF_SKB_TSTAMP_* that the bpf prog cannot handle,
|
||||
* the bpf prog should handle it like BPF_SKB_TSTAMP_UNSPEC
|
||||
* and try to deduce it by ingress, egress or skb->sk->sk_clockid.
|
||||
*/
|
||||
};
|
||||
|
||||
/* user accessible mirror of in-kernel sk_buff.
|
||||
* new fields can only be added to the end of this structure
|
||||
*/
|
||||
@@ -5349,7 +5693,8 @@ struct __sk_buff {
|
||||
__u32 gso_segs;
|
||||
__bpf_md_ptr(struct bpf_sock *, sk);
|
||||
__u32 gso_size;
|
||||
__u32 :32; /* Padding, future use. */
|
||||
__u8 tstamp_type;
|
||||
__u32 :24; /* Padding, future use. */
|
||||
__u64 hwtstamp;
|
||||
};
|
||||
|
||||
@@ -5363,6 +5708,10 @@ struct bpf_tunnel_key {
|
||||
__u8 tunnel_ttl;
|
||||
__u16 tunnel_ext; /* Padding, future use. */
|
||||
__u32 tunnel_label;
|
||||
union {
|
||||
__u32 local_ipv4;
|
||||
__u32 local_ipv6[4];
|
||||
};
|
||||
};
|
||||
|
||||
/* user accessible mirror of in-kernel xfrm_state.
|
||||
@@ -5414,7 +5763,8 @@ struct bpf_sock {
|
||||
__u32 src_ip4;
|
||||
__u32 src_ip6[4];
|
||||
__u32 src_port; /* host byte order */
|
||||
__u32 dst_port; /* network byte order */
|
||||
__be16 dst_port; /* network byte order */
|
||||
__u16 :16; /* zero padding */
|
||||
__u32 dst_ip4;
|
||||
__u32 dst_ip6[4];
|
||||
__u32 state;
|
||||
@@ -6256,6 +6606,11 @@ struct bpf_timer {
|
||||
__u64 :64;
|
||||
} __attribute__((aligned(8)));
|
||||
|
||||
struct bpf_dynptr {
|
||||
__u64 :64;
|
||||
__u64 :64;
|
||||
} __attribute__((aligned(8)));
|
||||
|
||||
struct bpf_sysctl {
|
||||
__u32 write; /* Sysctl is being read (= 0) or written (= 1).
|
||||
* Allows 1,2,4-byte read, but no write.
|
||||
@@ -6292,10 +6647,12 @@ struct bpf_sk_lookup {
|
||||
__u32 protocol; /* IP protocol (IPPROTO_TCP, IPPROTO_UDP) */
|
||||
__u32 remote_ip4; /* Network byte order */
|
||||
__u32 remote_ip6[4]; /* Network byte order */
|
||||
__u32 remote_port; /* Network byte order */
|
||||
__be16 remote_port; /* Network byte order */
|
||||
__u16 :16; /* Zero padding */
|
||||
__u32 local_ip4; /* Network byte order */
|
||||
__u32 local_ip6[4]; /* Network byte order */
|
||||
__u32 local_port; /* Host byte order */
|
||||
__u32 ingress_ifindex; /* The arriving interface. Determined by inet_iif. */
|
||||
};
|
||||
|
||||
/*
|
||||
@@ -6328,4 +6685,78 @@ enum {
|
||||
BTF_F_ZERO = (1ULL << 3),
|
||||
};
|
||||
|
||||
/* bpf_core_relo_kind encodes which aspect of captured field/type/enum value
|
||||
* has to be adjusted by relocations. It is emitted by llvm and passed to
|
||||
* libbpf and later to the kernel.
|
||||
*/
|
||||
enum bpf_core_relo_kind {
|
||||
BPF_CORE_FIELD_BYTE_OFFSET = 0, /* field byte offset */
|
||||
BPF_CORE_FIELD_BYTE_SIZE = 1, /* field size in bytes */
|
||||
BPF_CORE_FIELD_EXISTS = 2, /* field existence in target kernel */
|
||||
BPF_CORE_FIELD_SIGNED = 3, /* field signedness (0 - unsigned, 1 - signed) */
|
||||
BPF_CORE_FIELD_LSHIFT_U64 = 4, /* bitfield-specific left bitshift */
|
||||
BPF_CORE_FIELD_RSHIFT_U64 = 5, /* bitfield-specific right bitshift */
|
||||
BPF_CORE_TYPE_ID_LOCAL = 6, /* type ID in local BPF object */
|
||||
BPF_CORE_TYPE_ID_TARGET = 7, /* type ID in target kernel */
|
||||
BPF_CORE_TYPE_EXISTS = 8, /* type existence in target kernel */
|
||||
BPF_CORE_TYPE_SIZE = 9, /* type size in bytes */
|
||||
BPF_CORE_ENUMVAL_EXISTS = 10, /* enum value existence in target kernel */
|
||||
BPF_CORE_ENUMVAL_VALUE = 11, /* enum value integer value */
|
||||
};
|
||||
|
||||
/*
|
||||
* "struct bpf_core_relo" is used to pass relocation data form LLVM to libbpf
|
||||
* and from libbpf to the kernel.
|
||||
*
|
||||
* CO-RE relocation captures the following data:
|
||||
* - insn_off - instruction offset (in bytes) within a BPF program that needs
|
||||
* its insn->imm field to be relocated with actual field info;
|
||||
* - type_id - BTF type ID of the "root" (containing) entity of a relocatable
|
||||
* type or field;
|
||||
* - access_str_off - offset into corresponding .BTF string section. String
|
||||
* interpretation depends on specific relocation kind:
|
||||
* - for field-based relocations, string encodes an accessed field using
|
||||
* a sequence of field and array indices, separated by colon (:). It's
|
||||
* conceptually very close to LLVM's getelementptr ([0]) instruction's
|
||||
* arguments for identifying offset to a field.
|
||||
* - for type-based relocations, strings is expected to be just "0";
|
||||
* - for enum value-based relocations, string contains an index of enum
|
||||
* value within its enum type;
|
||||
* - kind - one of enum bpf_core_relo_kind;
|
||||
*
|
||||
* Example:
|
||||
* struct sample {
|
||||
* int a;
|
||||
* struct {
|
||||
* int b[10];
|
||||
* };
|
||||
* };
|
||||
*
|
||||
* struct sample *s = ...;
|
||||
* int *x = &s->a; // encoded as "0:0" (a is field #0)
|
||||
* int *y = &s->b[5]; // encoded as "0:1:0:5" (anon struct is field #1,
|
||||
* // b is field #0 inside anon struct, accessing elem #5)
|
||||
* int *z = &s[10]->b; // encoded as "10:1" (ptr is used as an array)
|
||||
*
|
||||
* type_id for all relocs in this example will capture BTF type id of
|
||||
* `struct sample`.
|
||||
*
|
||||
* Such relocation is emitted when using __builtin_preserve_access_index()
|
||||
* Clang built-in, passing expression that captures field address, e.g.:
|
||||
*
|
||||
* bpf_probe_read(&dst, sizeof(dst),
|
||||
* __builtin_preserve_access_index(&src->a.b.c));
|
||||
*
|
||||
* In this case Clang will emit field relocation recording necessary data to
|
||||
* be able to find offset of embedded `a.b.c` field within `src` struct.
|
||||
*
|
||||
* [0] https://llvm.org/docs/LangRef.html#getelementptr-instruction
|
||||
*/
|
||||
struct bpf_core_relo {
|
||||
__u32 insn_off;
|
||||
__u32 type_id;
|
||||
__u32 access_str_off;
|
||||
enum bpf_core_relo_kind kind;
|
||||
};
|
||||
|
||||
#endif /* _UAPI__LINUX_BPF_H__ */
|
||||
|
||||
@@ -288,7 +288,7 @@ enum {
|
||||
#define DM_VERSION_MAJOR 4
|
||||
#define DM_VERSION_MINOR 27
|
||||
#define DM_VERSION_PATCHLEVEL 0
|
||||
#define DM_VERSION_EXTRA "-ioctl (2021-03-22)"
|
||||
#define DM_VERSION_EXTRA "-ioctl (2022-02-22)"
|
||||
|
||||
/* Status bits */
|
||||
#define DM_READONLY_FLAG (1 << 0) /* In/Out */
|
||||
|
||||
@@ -235,6 +235,7 @@ enum tunable_id {
|
||||
ETHTOOL_RX_COPYBREAK,
|
||||
ETHTOOL_TX_COPYBREAK,
|
||||
ETHTOOL_PFC_PREVENTION_TOUT, /* timeout in msecs */
|
||||
ETHTOOL_TX_COPYBREAK_BUF_SIZE,
|
||||
/*
|
||||
* Add your fresh new tunable attribute above and remember to update
|
||||
* tunable_strings[] in net/ethtool/common.c
|
||||
@@ -1694,6 +1695,7 @@ enum ethtool_link_mode_bit_indices {
|
||||
ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT = 89,
|
||||
ETHTOOL_LINK_MODE_100baseFX_Half_BIT = 90,
|
||||
ETHTOOL_LINK_MODE_100baseFX_Full_BIT = 91,
|
||||
ETHTOOL_LINK_MODE_10baseT1L_Full_BIT = 92,
|
||||
/* must be last entry */
|
||||
__ETHTOOL_LINK_MODE_MASK_NBITS
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user