bpf: Add btf_struct_ids_match function

[linux-2.6-microblaze.git] / include / linux / bpf.h

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 55f694b..540f5e6 100644 (file)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -34,6 +34,8 @@ struct btf_type;
 struct exception_table_entry;
 struct seq_operations;
 struct bpf_iter_aux_info;
+struct bpf_local_storage;
+struct bpf_local_storage_map;
 
 extern struct idr btf_idr;
 extern spinlock_t btf_idr_lock;
@@ -104,6 +106,12 @@ struct bpf_map_ops {
        __poll_t (*map_poll)(struct bpf_map *map, struct file *filp,
                             struct poll_table_struct *pts);
 
+       /* Functions called by bpf_local_storage maps */
+       int (*map_local_storage_charge)(struct bpf_local_storage_map *smap,
+                                       void *owner, u32 size);
+       void (*map_local_storage_uncharge)(struct bpf_local_storage_map *smap,
+                                          void *owner, u32 size);
+       struct bpf_local_storage __rcu ** (*map_owner_storage_ptr)(void *owner);
        /* BTF name and id of struct allocated by map_alloc */
        const char * const map_btf_name;
        int *map_btf_id;
@@ -1218,12 +1226,18 @@ typedef int (*bpf_iter_attach_target_t)(struct bpf_prog *prog,
                                        union bpf_iter_link_info *linfo,
                                        struct bpf_iter_aux_info *aux);
 typedef void (*bpf_iter_detach_target_t)(struct bpf_iter_aux_info *aux);
+typedef void (*bpf_iter_show_fdinfo_t) (const struct bpf_iter_aux_info *aux,
+                                       struct seq_file *seq);
+typedef int (*bpf_iter_fill_link_info_t)(const struct bpf_iter_aux_info *aux,
+                                        struct bpf_link_info *info);
 
 #define BPF_ITER_CTX_ARG_MAX 2
 struct bpf_iter_reg {
        const char *target;
        bpf_iter_attach_target_t attach_target;
        bpf_iter_detach_target_t detach_target;
+       bpf_iter_show_fdinfo_t show_fdinfo;
+       bpf_iter_fill_link_info_t fill_link_info;
        u32 ctx_arg_info_size;
        struct bpf_ctx_arg_aux ctx_arg_info[BPF_ITER_CTX_ARG_MAX];
        const struct bpf_iter_seq_info *seq_info;
@@ -1250,6 +1264,10 @@ int bpf_iter_new_fd(struct bpf_link *link);
 bool bpf_link_is_iter(struct bpf_link *link);
 struct bpf_prog *bpf_iter_get_info(struct bpf_iter_meta *meta, bool in_stop);
 int bpf_iter_run_prog(struct bpf_prog *prog, void *ctx);
+void bpf_iter_map_show_fdinfo(const struct bpf_iter_aux_info *aux,
+                             struct seq_file *seq);
+int bpf_iter_map_fill_link_info(const struct bpf_iter_aux_info *aux,
+                               struct bpf_link_info *info);
 
 int bpf_percpu_hash_copy(struct bpf_map *map, void *key, void *value);
 int bpf_percpu_array_copy(struct bpf_map *map, void *key, void *value);
@@ -1340,6 +1358,8 @@ int btf_struct_access(struct bpf_verifier_log *log,
                      const struct btf_type *t, int off, int size,
                      enum bpf_access_type atype,
                      u32 *next_btf_id);
+bool btf_struct_ids_match(struct bpf_verifier_log *log,
+                         int off, u32 id, u32 need_type_id);
 int btf_resolve_helper_id(struct bpf_verifier_log *log,
                          const struct bpf_func_proto *fn, int);
 
@@ -1358,6 +1378,7 @@ int btf_check_type_match(struct bpf_verifier_env *env, struct bpf_prog *prog,
                         struct btf *btf, const struct btf_type *t);
 
 struct bpf_prog *bpf_prog_by_id(u32 id);
+struct bpf_link *bpf_link_by_id(u32 id);
 
 const struct bpf_func_proto *bpf_base_func_proto(enum bpf_func_id func_id);
 #else /* !CONFIG_BPF_SYSCALL */
@@ -1637,6 +1658,7 @@ int sock_map_prog_update(struct bpf_map *map, struct bpf_prog *prog,
                         struct bpf_prog *old, u32 which);
 int sock_map_get_from_fd(const union bpf_attr *attr, struct bpf_prog *prog);
 int sock_map_prog_detach(const union bpf_attr *attr, enum bpf_prog_type ptype);
+int sock_map_update_elem_sys(struct bpf_map *map, void *key, void *value, u64 flags);
 void sock_map_unhash(struct sock *sk);
 void sock_map_close(struct sock *sk, long timeout);
 #else
@@ -1658,6 +1680,12 @@ static inline int sock_map_prog_detach(const union bpf_attr *attr,
 {
        return -EOPNOTSUPP;
 }
+
+static inline int sock_map_update_elem_sys(struct bpf_map *map, void *key, void *value,
+                                          u64 flags)
+{
+       return -EOPNOTSUPP;
+}
 #endif /* CONFIG_BPF_STREAM_PARSER */
 
 #if defined(CONFIG_INET) && defined(CONFIG_BPF_SYSCALL)