diff options
| -rw-r--r-- | src/core/bpf-foreign.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/core/bpf-foreign.c b/src/core/bpf-foreign.c index 686c14ce1f..8538792b60 100644 --- a/src/core/bpf-foreign.c +++ b/src/core/bpf-foreign.c @@ -4,8 +4,10 @@ #include "bpf-program.h" #include "cgroup.h" #include "memory-util.h" +#include "missing_magic.h" #include "mountpoint-util.h" #include "set.h" +#include "stat-util.h" typedef struct BPFForeignKey BPFForeignKey; struct BPFForeignKey { @@ -84,6 +86,14 @@ static int bpf_foreign_prepare( assert(u); assert(bpffs_path); + r = path_is_fs_type(bpffs_path, BPF_FS_MAGIC); + if (r < 0) + return log_unit_error_errno(u, r, + "Failed to determine filesystem type of %s: %m", bpffs_path); + if (r == 0) + return log_unit_error_errno(u, SYNTHETIC_ERRNO(EINVAL), + "Path in BPF filesystem is expected."); + r = bpf_program_new_from_bpffs_path(bpffs_path, &prog); if (r < 0) return log_unit_error_errno(u, r, "Failed to create foreign BPFProgram: %m"); |