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bpf: add BPF token support to BPF_BTF_LOAD command

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Accept BPF token FD in BPF_BTF_LOAD command to allow BTF data loading
through delegated BPF token. BTF loading is a pretty straightforward
operation, so as long as BPF token is created with allow_cmds granting
BPF_BTF_LOAD command, kernel proceeds to parsing BTF data and creating
BTF object.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231130185229.2688956-6-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrii Nakryiko
2023-11-30 10:52:17 -08:00
committed by Andrii Nakryiko
parent 9abcc5efc8
commit 544acb9af6
1 changed files with 1 additions and 0 deletions
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include/uapi/linux/bpf.h
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@@ -1616,6 +1616,7 @@ union bpf_attr {
* truncated), or smaller (if log buffer wasn't filled completely).
*/
__u32 btf_log_true_size;
__u32 btf_token_fd;
};
struct {