Chenbo Feng 6e71b04a82 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>

2017-10-20 13:32:59 +01:00

..

arraymap.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

bpf_lru_list.c

bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4

2017-04-17 13:55:52 -04:00

bpf_lru_list.h

bpf: Only set node->ref = 1 if it has not been set

2017-09-01 09:57:39 -07:00

cgroup.c

bpf: remove redundant variable old_flags

2017-10-11 20:22:34 -07:00

core.c

tracing: bpf: Hide bpf trace events when they are not used

2017-10-16 21:10:20 +01:00

cpumap.c

bpf: cpumap add tracepoints

2017-10-18 12:12:18 +01:00

devmap.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

disasm.c

bpf: move instruction printing into a separate file

2017-10-10 12:30:16 -07:00

disasm.h

bpf: move instruction printing into a separate file

2017-10-10 12:30:16 -07:00

hashtab.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

helpers.c

bpf: rename ARG_PTR_TO_STACK

2017-01-09 16:56:27 -05:00

inode.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

lpm_trie.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

Makefile

bpf: introduce new bpf cpu map type BPF_MAP_TYPE_CPUMAP

2017-10-18 12:12:18 +01:00

map_in_map.c

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

map_in_map.h

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

percpu_freelist.c

bpf: introduce percpu_freelist

2016-03-08 15:28:31 -05:00

percpu_freelist.h

bpf: introduce percpu_freelist

2016-03-08 15:28:31 -05:00

sockmap.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

stackmap.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

syscall.c

bpf: Add file mode configuration into bpf maps

2017-10-20 13:32:59 +01:00

tnum.c

bpf/verifier: track signed and unsigned min/max values

2017-08-08 17:51:34 -07:00

verifier.c

bpf: move knowledge about post-translation offsets out of verifier

2017-10-18 14:17:10 +01:00