acquire_reference

Name:Acquire a pointer id from the env and update the state->refs to include* this new pointer reference.* On success, returns a valid pointer id to associate with the register* On failure, returns a negative errno.

Proto:static int acquire_reference_state(struct bpf_verifier_env *env, int insn_idx)

Type:int

Parameter:

Type	Parameter	Name
struct bpf_verifier_env *	env
int	insn_idx

677

state = cur_func(env)

678

new_ofs = The following fields should be last. See copy_func_state()

681

err = alloc_reference_state()

682

If err Then Return err

684

id = ++used to generate unique reg IDs

685

Track each reference created with a unique id, even if the same * instruction creates the reference multiple times (eg, via CALL). = id

686

Instruction where the allocation of this reference occurred. This * is used purely to inform the user of a reference leak. = insn_idx

688

Return id

**Caller**
Name	Describe
check_helper_call

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Function report