Lorenz Bauer 1b514239e8 bpf: flow_dissector: Check value of unused flags to BPF_PROG_ATTACH ...

Using BPF_PROG_ATTACH on a flow dissector program supports neither
target_fd, attach_flags or replace_bpf_fd but accepts any value.

Enforce that all of them are zero. This is fine for replace_bpf_fd
since its presence is indicated by BPF_F_REPLACE. It's more
problematic for target_fd, since zero is a valid fd. Should we
want to use the flag later on we'd have to add an exception for
fd 0. The alternative is to force a value like -1. This requires
more changes to tests. There is also precedent for using 0,
since bpf_iter uses this for target_fd as well.

Fixes: b27f7bb590ba ("flow_dissector: Move out netns_bpf prog callbacks")
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200629095630.7933-2-lmb@cloudflare.com

2020-06-30 10:46:38 -07:00

..

arraymap.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-05-15 13:48:59 -07:00

bpf_iter.c

bpf: Enable bpf_iter targets registering ctx argument types

2020-05-13 12:30:50 -07:00

bpf_lru_list.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

bpf_lru_list.h

bpf: Fix a typo "inacitve" -> "inactive"

2020-04-06 21:54:10 +02:00

bpf_lsm.c

bpf: Use tracing helpers for lsm programs

2020-06-01 15:08:04 -07:00

bpf_struct_ops_types.h

bpf: tcp: Support tcp_congestion_ops in bpf

2020-01-09 08:46:18 -08:00

bpf_struct_ops.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

btf.c

bpf: Do not allow btf_ctx_access with __int128 types

2020-06-25 16:17:05 +02:00

cgroup.c

bpf: Don't return EINVAL from {get,set}sockopt when optlen > PAGE_SIZE

2020-06-17 10:54:05 -07:00

core.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2020-06-03 16:27:18 -07:00

cpumap.c

xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frame

2020-06-01 15:02:53 -07:00

devmap.c

devmap: Use bpf_map_area_alloc() for allocating hash buckets

2020-06-17 10:01:19 -07:00

disasm.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

disasm.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

dispatcher.c

bpf: Remove bpf_image tree

2020-03-13 12:49:52 -07:00

hashtab.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

helpers.c

bpf: Implement BPF ring buffer and verifier support for it

2020-06-01 14:38:22 -07:00

inode.c

bpf: Create file bpf iterator

2020-05-09 17:05:26 -07:00

local_storage.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2019-12-22 09:54:33 -08:00

lpm_trie.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

Makefile

flow_dissector: Move out netns_bpf prog callbacks

2020-06-01 15:21:02 -07:00

map_in_map.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

map_in_map.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

map_iter.c

bpf: Enable bpf_iter targets registering ctx argument types

2020-05-13 12:30:50 -07:00

net_namespace.c

bpf: flow_dissector: Check value of unused flags to BPF_PROG_ATTACH

2020-06-30 10:46:38 -07:00

offload.c

bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill

2020-02-17 16:53:49 +01:00

percpu_freelist.c

bpf: Dont iterate over possible CPUs with interrupts disabled

2020-02-24 16:18:20 -08:00

percpu_freelist.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

queue_stack_maps.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

reuseport_array.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

ringbuf.c

bpf: Enforce BPF ringbuf size to be the power of 2

2020-06-30 16:31:55 +02:00

stackmap.c

mmap locking API: add mmap_read_trylock_non_owner()

2020-06-09 09:39:14 -07:00

syscall.c

bpf: Restore behaviour of CAP_SYS_ADMIN allowing the loading of networking bpf programs

2020-06-23 17:45:42 -07:00

sysfs_btf.c

bpf: Support llvm-objcopy for vmlinux BTF

2020-03-19 12:32:38 +01:00

task_iter.c

bpf: Fix bpf_iter's task iterator logic

2020-05-14 18:37:32 -07:00

tnum.c

bpf: Verifier, do explicit ALU32 bounds tracking

2020-03-30 14:59:53 -07:00

trampoline.c

bpf: lsm: Implement attach, detach and execution

2020-03-30 01:34:00 +02:00

verifier.c

bpf: Set the number of exception entries properly for subprograms

2020-06-23 17:27:37 -07:00