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
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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