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authorFlorent Revest <revest@chromium.org>2020-12-04 12:36:05 +0100
committerDaniel Borkmann <daniel@iogearbox.net>2020-12-04 22:32:40 +0100
commit4f19cab76136e800a3f04d8c9aa4d8e770e3d3d8 (patch)
tree3b5e5f07da31f2a2a81b858765e00c8ff0265daa /scripts/bpf_helpers_doc.py
parentdba4a9256bb4d78ef89aaad5f49787aa27fcd5b4 (diff)
bpf: Add a bpf_sock_from_file helper
While eBPF programs can check whether a file is a socket by file->f_op == &socket_file_ops, they cannot convert the void private_data pointer to a struct socket BTF pointer. In order to do this a new helper wrapping sock_from_file is added. This is useful to tracing programs but also other program types inheriting this set of helpers such as iterators or LSM programs. Signed-off-by: Florent Revest <revest@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: KP Singh <kpsingh@google.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20201204113609.1850150-2-revest@google.com
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
-rwxr-xr-xscripts/bpf_helpers_doc.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/scripts/bpf_helpers_doc.py b/scripts/bpf_helpers_doc.py
index 8b829748d488..867ada23281c 100755
--- a/scripts/bpf_helpers_doc.py
+++ b/scripts/bpf_helpers_doc.py
@@ -437,6 +437,8 @@ class PrinterHelpers(Printer):
'struct path',
'struct btf_ptr',
'struct inode',
+ 'struct socket',
+ 'struct file',
]
known_types = {
'...',
@@ -482,6 +484,8 @@ class PrinterHelpers(Printer):
'struct path',
'struct btf_ptr',
'struct inode',
+ 'struct socket',
+ 'struct file',
}
mapped_types = {
'u8': '__u8',