bpf: charge user for creation of BPF maps and programs

[karo-tx-linux.git] / include / linux / bpf.h

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index c915a6b54570cddd07aad894230a53f89cc39eae..e3a51b74e275933700690afcc6c2c233b3612066 100644 (file)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -36,6 +36,8 @@ struct bpf_map {
        u32 key_size;
        u32 value_size;
        u32 max_entries;
+       u32 pages;
+       struct user_struct *user;
        const struct bpf_map_ops *ops;
        struct work_struct work;
 };
@@ -100,6 +102,8 @@ enum bpf_access_type {
        BPF_WRITE = 2
 };
 
+struct bpf_prog;
+
 struct bpf_verifier_ops {
        /* return eBPF function prototype for verification */
        const struct bpf_func_proto *(*get_func_proto)(enum bpf_func_id func_id);
@@ -111,7 +115,7 @@ struct bpf_verifier_ops {
 
        u32 (*convert_ctx_access)(enum bpf_access_type type, int dst_reg,
                                  int src_reg, int ctx_off,
-                                 struct bpf_insn *insn);
+                                 struct bpf_insn *insn, struct bpf_prog *prog);
 };
 
 struct bpf_prog_type_list {
@@ -120,14 +124,13 @@ struct bpf_prog_type_list {
        enum bpf_prog_type type;
 };
 
-struct bpf_prog;
-
 struct bpf_prog_aux {
        atomic_t refcnt;
        u32 used_map_cnt;
        const struct bpf_verifier_ops *ops;
        struct bpf_map **used_maps;
        struct bpf_prog *prog;
+       struct user_struct *user;
        union {
                struct work_struct work;
                struct rcu_head rcu;
@@ -167,6 +170,8 @@ void bpf_prog_put_rcu(struct bpf_prog *prog);
 struct bpf_map *bpf_map_get(struct fd f);
 void bpf_map_put(struct bpf_map *map);
 
+extern int sysctl_unprivileged_bpf_disabled;
+
 /* verify correctness of eBPF program */
 int bpf_check(struct bpf_prog **fp, union bpf_attr *attr);
 #else
@@ -200,4 +205,8 @@ extern const struct bpf_func_proto bpf_get_current_comm_proto;
 extern const struct bpf_func_proto bpf_skb_vlan_push_proto;
 extern const struct bpf_func_proto bpf_skb_vlan_pop_proto;
 
+/* Shared helpers among cBPF and eBPF. */
+void bpf_user_rnd_init_once(void);
+u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
+
 #endif /* _LINUX_BPF_H */