diff options
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index bb1ab7da6103..6ffe2d8fb6c7 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -2729,6 +2729,8 @@ attach_type_to_prog_type(enum bpf_attach_type attach_type) case BPF_CGROUP_GETSOCKOPT: case BPF_CGROUP_SETSOCKOPT: return BPF_PROG_TYPE_CGROUP_SOCKOPT; + case BPF_TRACE_ITER: + return BPF_PROG_TYPE_TRACING; default: return BPF_PROG_TYPE_UNSPEC; } @@ -3729,6 +3731,15 @@ err_put: return err; } +static int tracing_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *prog) +{ + if (attr->link_create.attach_type == BPF_TRACE_ITER && + prog->expected_attach_type == BPF_TRACE_ITER) + return bpf_iter_link_attach(attr, prog); + + return -EINVAL; +} + #define BPF_LINK_CREATE_LAST_FIELD link_create.flags static int link_create(union bpf_attr *attr) { @@ -3765,6 +3776,9 @@ static int link_create(union bpf_attr *attr) case BPF_PROG_TYPE_CGROUP_SOCKOPT: ret = cgroup_bpf_link_attach(attr, prog); break; + case BPF_PROG_TYPE_TRACING: + ret = tracing_bpf_link_attach(attr, prog); + break; default: ret = -EINVAL; } |