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| author | Andrii Nakryiko <andrii@kernel.org> | 2024-01-23 18:21:03 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-01-24 16:21:01 -0800 |
| commit | caf8f28e036c4ba1e823355da6c0c01c39e70ab9 (patch) | |
| tree | bc60a1165bbbf9e13a1fa840f27298af3cbee67d /kernel/bpf/inode.c | |
| parent | 9ea7c4bf17e39d463eb4782f948f401d9764b1b3 (diff) | |
| download | linux-stable-caf8f28e036c4ba1e823355da6c0c01c39e70ab9.tar.gz linux-stable-caf8f28e036c4ba1e823355da6c0c01c39e70ab9.tar.bz2 linux-stable-caf8f28e036c4ba1e823355da6c0c01c39e70ab9.zip | |
bpf: Add BPF token support to BPF_PROG_LOAD command
Add basic support of BPF token to BPF_PROG_LOAD. BPF_F_TOKEN_FD flag
should be set in prog_flags field when providing prog_token_fd.
Wire through a set of allowed BPF program types and attach types,
derived from BPF FS at BPF token creation time. Then make sure we
perform bpf_token_capable() checks everywhere where it's relevant.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20240124022127.2379740-7-andrii@kernel.org
Diffstat (limited to 'kernel/bpf/inode.c')
| -rw-r--r-- | kernel/bpf/inode.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c index 034b7e4d8f19..5fb10da5717f 100644 --- a/kernel/bpf/inode.c +++ b/kernel/bpf/inode.c @@ -626,12 +626,14 @@ static int bpf_show_options(struct seq_file *m, struct dentry *root) else if (opts->delegate_maps) seq_printf(m, ",delegate_maps=0x%llx", opts->delegate_maps); - if (opts->delegate_progs == ~0ULL) + mask = (1ULL << __MAX_BPF_PROG_TYPE) - 1; + if ((opts->delegate_progs & mask) == mask) seq_printf(m, ",delegate_progs=any"); else if (opts->delegate_progs) seq_printf(m, ",delegate_progs=0x%llx", opts->delegate_progs); - if (opts->delegate_attachs == ~0ULL) + mask = (1ULL << __MAX_BPF_ATTACH_TYPE) - 1; + if ((opts->delegate_attachs & mask) == mask) seq_printf(m, ",delegate_attachs=any"); else if (opts->delegate_attachs) seq_printf(m, ",delegate_attachs=0x%llx", opts->delegate_attachs); |