Hello. I'm having problem with finding BPF LSM examples that work. I tried building tools/testing/selftests/bpf/progs/lsm.c and tools/testing/selftests/bpf/prog_tests/test_lsm.c explained at https://docs.kernel.org/bpf/prog_lsm.html , but got a lot of errors. ---------------------------------------- root@ubuntu:/usr/src# git clone https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git Cloning into 'linux'... remote: Total 9723739 (delta 8227084), reused 9723739 (delta 8227084) Receiving objects: 100% (9723739/9723739), 1.81 GiB | 4.04 MiB/s, done. Resolving deltas: 100% (8227084/8227084), done. Checking objects: 100% (33554432/33554432), done. Updating files: 100% (81759/81759), done. root@ubuntu:/usr/src# cd linux root@ubuntu:/usr/src/linux# git describe v6.6-rc5-72-g401644852d0b root@ubuntu:/usr/src/linux# make -s headers root@ubuntu:/usr/src/linux# make -sC tools/testing/selftests/bpf/ MKDIR libbpf Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h' TEST-HDR [test_progs] tests.h EXT-OBJ [test_progs] testing_helpers.o EXT-OBJ [test_progs] cap_helpers.o EXT-OBJ [test_progs] unpriv_helpers.o BINARY test_verifier BINARY test_tag MKDIR bpftool GEN vmlinux.h CLNG-BPF [test_maps] async_stack_depth.bpf.o progs/async_stack_depth.c:8:19: error: field has incomplete type 'struct bpf_timer' struct bpf_timer timer; ^ /usr/src/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_helper_defs.h:41:8: note: forward declaration of 'struct bpf_timer' struct bpf_timer; ^ 1 error generated. make: *** [Makefile:598: /usr/src/linux/tools/testing/selftests/bpf/async_stack_depth.bpf.o] Error 1 ---------------------------------------- To fix these errors, something like the following (this seems to be a fraction) is needed. What am I missing? ---------------------------------------- diff --git a/tools/testing/selftests/bpf/progs/async_stack_depth.c b/tools/testing/selftests/bpf/progs/async_stack_depth.c index 3517c0e01206..0318229d8fb2 100644 --- a/tools/testing/selftests/bpf/progs/async_stack_depth.c +++ b/tools/testing/selftests/bpf/progs/async_stack_depth.c @@ -4,6 +4,11 @@ #include "bpf_misc.h" +struct bpf_timer { + __u64 :64; + __u64 :64; +} __attribute__((aligned(8))); + struct hmap_elem { struct bpf_timer timer; }; diff --git a/tools/testing/selftests/bpf/progs/cb_refs.c b/tools/testing/selftests/bpf/progs/cb_refs.c index 76d661b20e87..d1fb43346dc1 100644 --- a/tools/testing/selftests/bpf/progs/cb_refs.c +++ b/tools/testing/selftests/bpf/progs/cb_refs.c @@ -2,6 +2,9 @@ #include <vmlinux.h> #include <bpf/bpf_tracing.h> #include <bpf/bpf_helpers.h> +struct prog_test_member1 { + int a; +}; #include "../bpf_testmod/bpf_testmod_kfunc.h" struct map_value { diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c b/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c index 8aeba1b75c83..5de35c0e08cc 100644 --- a/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c +++ b/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c @@ -14,7 +14,7 @@ struct socket_cookie { }; struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, struct socket_cookie); diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c b/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c index d41f90e2ab64..21043a18b67d 100644 --- a/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c +++ b/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c @@ -8,7 +8,7 @@ char _license[] SEC("license") = "GPL"; struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, long); diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c b/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c index a043d8fefdac..cc175f004266 100644 --- a/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c +++ b/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c @@ -8,14 +8,14 @@ char _license[] SEC("license") = "GPL"; struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, long); } map_a SEC(".maps"); struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, long); diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c b/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c index 4c7844e1dbfa..0130e2e6b3d7 100644 --- a/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c +++ b/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c @@ -9,7 +9,7 @@ char _license[] SEC("license") = "GPL"; struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, long); diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c b/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c index 9ebb8e2fe541..e47c88c8790c 100644 --- a/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c +++ b/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c @@ -8,14 +8,14 @@ char _license[] SEC("license") = "GPL"; struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, long); } map_a SEC(".maps"); struct { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, long); diff --git a/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c b/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c index 0bf969a0b5ed..f681d6f15c43 100644 --- a/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c +++ b/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c @@ -3,6 +3,18 @@ #include "vmlinux.h" #include <bpf/bpf_helpers.h> + +struct bpf_dummy_ops_state { + int val; +}; + +struct bpf_dummy_ops { + int (*test_1)(struct bpf_dummy_ops_state *cb); + int (*test_2)(struct bpf_dummy_ops_state *cb, int a1, unsigned short a2, + char a3, unsigned long a4); + int (*test_sleepable)(struct bpf_dummy_ops_state *cb); +}; + #include <bpf/bpf_tracing.h> #include "bpf_misc.h" diff --git a/tools/testing/selftests/bpf/progs/map_kptr.c b/tools/testing/selftests/bpf/progs/map_kptr.c index da30f0d59364..b0db7b893461 100644 --- a/tools/testing/selftests/bpf/progs/map_kptr.c +++ b/tools/testing/selftests/bpf/progs/map_kptr.c @@ -68,7 +68,7 @@ struct lru_pcpu_hash_map { } lru_pcpu_hash_map SEC(".maps"); struct cgrp_ls_map { - __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __uint(map_flags, BPF_F_NO_PREALLOC); __type(key, int); __type(value, struct map_value); ----------------------------------------
