Adding upstream version 247.3.upstream/247.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/src/shared/bpf-program.h b/src/shared/bpf-program.h
new file mode 100644
index 0000000..eef77f9
--- /dev/null
+++ b/src/shared/bpf-program.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <sys/syscall.h>
+
+#include "list.h"
+#include "macro.h"
+
+typedef struct BPFProgram BPFProgram;
+
+struct BPFProgram {
+        unsigned n_ref;
+
+        int kernel_fd;
+        uint32_t prog_type;
+
+        size_t n_instructions;
+        size_t allocated;
+        struct bpf_insn *instructions;
+
+        char *attached_path;
+        int attached_type;
+        uint32_t attached_flags;
+};
+
+int bpf_program_new(uint32_t prog_type, BPFProgram **ret);
+BPFProgram *bpf_program_unref(BPFProgram *p);
+BPFProgram *bpf_program_ref(BPFProgram *p);
+
+int bpf_program_add_instructions(BPFProgram *p, const struct bpf_insn *insn, size_t count);
+int bpf_program_load_kernel(BPFProgram *p, char *log_buf, size_t log_size);
+int bpf_program_load_from_bpf_fs(BPFProgram *p, const char *path);
+
+int bpf_program_cgroup_attach(BPFProgram *p, int type, const char *path, uint32_t flags);
+int bpf_program_cgroup_detach(BPFProgram *p);
+
+int bpf_map_new(enum bpf_map_type type, size_t key_size, size_t value_size, size_t max_entries, uint32_t flags);
+int bpf_map_update_element(int fd, const void *key, void *value);
+int bpf_map_lookup_element(int fd, const void *key, void *value);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(BPFProgram*, bpf_program_unref);