UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

selftests/bpf: add selftests for wide loads 

Mirror existing wide store tests with wide loads. The only significant
difference is expected error string.

Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Stanislav Fomichev 2019-07-15 09:39:55 -07:00 committed by Daniel Borkmann
parent 8b45063c85
commit 7dd8d6119d
1 changed files with 37 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
tools/testing/selftests/bpf/verifier/wide_access.c
View File

@ -34,3 +34,40 @@ BPF_SOCK_ADDR_STORE(msg_src_ip6, 3, REJECT,
"invalid bpf_context access off=56 size=8"),
#undef BPF_SOCK_ADDR_STORE
#define BPF_SOCK_ADDR_LOAD(field, off, res, err) \
{ \
"wide load from bpf_sock_addr." #field "[" #off "]", \
.insns = { \
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, \
offsetof(struct bpf_sock_addr, field[off])), \
BPF_MOV64_IMM(BPF_REG_0, 1), \
BPF_EXIT_INSN(), \
}, \
.result = res, \
.prog_type = BPF_PROG_TYPE_CGROUP_SOCK_ADDR, \
.expected_attach_type = BPF_CGROUP_UDP6_SENDMSG, \
.errstr = err, \
}
/* user_ip6[0] is u64 aligned */
BPF_SOCK_ADDR_LOAD(user_ip6, 0, ACCEPT,
NULL),
BPF_SOCK_ADDR_LOAD(user_ip6, 1, REJECT,
"invalid bpf_context access off=12 size=8"),
BPF_SOCK_ADDR_LOAD(user_ip6, 2, ACCEPT,
NULL),
BPF_SOCK_ADDR_LOAD(user_ip6, 3, REJECT,
"invalid bpf_context access off=20 size=8"),
/* msg_src_ip6[0] is _not_ u64 aligned */
BPF_SOCK_ADDR_LOAD(msg_src_ip6, 0, REJECT,
"invalid bpf_context access off=44 size=8"),
BPF_SOCK_ADDR_LOAD(msg_src_ip6, 1, ACCEPT,
NULL),
BPF_SOCK_ADDR_LOAD(msg_src_ip6, 2, REJECT,
"invalid bpf_context access off=52 size=8"),
BPF_SOCK_ADDR_LOAD(msg_src_ip6, 3, REJECT,
"invalid bpf_context access off=56 size=8"),
#undef BPF_SOCK_ADDR_LOAD