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author | Chenbo Feng <fengc@google.com> | 2017-10-18 13:00:22 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2017-10-20 13:32:59 +0100 |
commit | 6e71b04a82248ccf13a94b85cbc674a9fefe53f5 (patch) | |
tree | 45cab2ff677b04d921a2813738dc1ada8c07eaec /kernel/uid16.c | |
parent | aec72f3392b1d598a979e89c4fdb131965ae0ab3 (diff) | |
download | linux-6e71b04a82248ccf13a94b85cbc674a9fefe53f5.tar.bz2 |
bpf: Add file mode configuration into bpf maps
Introduce the map read/write flags to the eBPF syscalls that returns the
map fd. The flags is used to set up the file mode when construct a new
file descriptor for bpf maps. To not break the backward capability, the
f_flags is set to O_RDWR if the flag passed by syscall is 0. Otherwise
it should be O_RDONLY or O_WRONLY. When the userspace want to modify or
read the map content, it will check the file mode to see if it is
allowed to make the change.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/uid16.c')
0 files changed, 0 insertions, 0 deletions