1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
#ifndef __BPF_EXPERIMENTAL__
#define __BPF_EXPERIMENTAL__
#include <vmlinux.h>
#include <bpf/bpf_tracing.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_core_read.h>
#define __contains(name, node) __attribute__((btf_decl_tag("contains:" #name ":" #node)))
/* Description
* Allocates an object of the type represented by 'local_type_id' in
* program BTF. User may use the bpf_core_type_id_local macro to pass the
* type ID of a struct in program BTF.
*
* The 'local_type_id' parameter must be a known constant.
* The 'meta' parameter is a hidden argument that is ignored.
* Returns
* A pointer to an object of the type corresponding to the passed in
* 'local_type_id', or NULL on failure.
*/
extern void *bpf_obj_new_impl(__u64 local_type_id, void *meta) __ksym;
/* Convenience macro to wrap over bpf_obj_new_impl */
#define bpf_obj_new(type) ((type *)bpf_obj_new_impl(bpf_core_type_id_local(type), NULL))
/* Description
* Free an allocated object. All fields of the object that require
* destruction will be destructed before the storage is freed.
*
* The 'meta' parameter is a hidden argument that is ignored.
* Returns
* Void.
*/
extern void bpf_obj_drop_impl(void *kptr, void *meta) __ksym;
/* Convenience macro to wrap over bpf_obj_drop_impl */
#define bpf_obj_drop(kptr) bpf_obj_drop_impl(kptr, NULL)
/* Description
* Add a new entry to the beginning of the BPF linked list.
* Returns
* Void.
*/
extern void bpf_list_push_front(struct bpf_list_head *head, struct bpf_list_node *node) __ksym;
/* Description
* Add a new entry to the end of the BPF linked list.
* Returns
* Void.
*/
extern void bpf_list_push_back(struct bpf_list_head *head, struct bpf_list_node *node) __ksym;
/* Description
* Remove the entry at the beginning of the BPF linked list.
* Returns
* Pointer to bpf_list_node of deleted entry, or NULL if list is empty.
*/
extern struct bpf_list_node *bpf_list_pop_front(struct bpf_list_head *head) __ksym;
/* Description
* Remove the entry at the end of the BPF linked list.
* Returns
* Pointer to bpf_list_node of deleted entry, or NULL if list is empty.
*/
extern struct bpf_list_node *bpf_list_pop_back(struct bpf_list_head *head) __ksym;
/* Description
* Remove 'node' from rbtree with root 'root'
* Returns
* Pointer to the removed node, or NULL if 'root' didn't contain 'node'
*/
extern struct bpf_rb_node *bpf_rbtree_remove(struct bpf_rb_root *root,
struct bpf_rb_node *node) __ksym;
/* Description
* Add 'node' to rbtree with root 'root' using comparator 'less'
* Returns
* Nothing
*/
extern void bpf_rbtree_add(struct bpf_rb_root *root, struct bpf_rb_node *node,
bool (less)(struct bpf_rb_node *a, const struct bpf_rb_node *b)) __ksym;
/* Description
* Return the first (leftmost) node in input tree
* Returns
* Pointer to the node, which is _not_ removed from the tree. If the tree
* contains no nodes, returns NULL.
*/
extern struct bpf_rb_node *bpf_rbtree_first(struct bpf_rb_root *root) __ksym;
#endif
|