diff options
| -rw-r--r-- | lib/test_bpf.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c index e2617516d31f..f18b7b8e60ec 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -4493,6 +4493,148 @@ static struct bpf_test tests[] = { { { 1, 0xbef } }, .fill_helper = bpf_fill_ld_abs_vlan_push_pop, }, + /* + * LD_IND / LD_ABS on fragmented SKBs + */ + { + "LD_IND byte frag", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_IMM, 0x40), + BPF_STMT(BPF_LD | BPF_IND | BPF_B, 0x0), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { }, + { {0x40, 0x42} }, + .frag_data = { + 0x42, 0x00, 0x00, 0x00, + 0x43, 0x44, 0x00, 0x00, + 0x21, 0x07, 0x19, 0x83, + }, + }, + { + "LD_IND halfword frag", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_IMM, 0x40), + BPF_STMT(BPF_LD | BPF_IND | BPF_H, 0x4), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { }, + { {0x40, 0x4344} }, + .frag_data = { + 0x42, 0x00, 0x00, 0x00, + 0x43, 0x44, 0x00, 0x00, + 0x21, 0x07, 0x19, 0x83, + }, + }, + { + "LD_IND word frag", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_IMM, 0x40), + BPF_STMT(BPF_LD | BPF_IND | BPF_W, 0x8), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { }, + { {0x40, 0x21071983} }, + .frag_data = { + 0x42, 0x00, 0x00, 0x00, + 0x43, 0x44, 0x00, 0x00, + 0x21, 0x07, 0x19, 0x83, + }, + }, + { + "LD_IND halfword mixed head/frag", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_IMM, 0x40), + BPF_STMT(BPF_LD | BPF_IND | BPF_H, -0x1), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { [0x3e] = 0x25, [0x3f] = 0x05, }, + { {0x40, 0x0519} }, + .frag_data = { 0x19, 0x82 }, + }, + { + "LD_IND word mixed head/frag", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_IMM, 0x40), + BPF_STMT(BPF_LD | BPF_IND | BPF_W, -0x2), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { [0x3e] = 0x25, [0x3f] = 0x05, }, + { {0x40, 0x25051982} }, + .frag_data = { 0x19, 0x82 }, + }, + { + "LD_ABS byte frag", + .u.insns = { + BPF_STMT(BPF_LD | BPF_ABS | BPF_B, 0x40), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { }, + { {0x40, 0x42} }, + .frag_data = { + 0x42, 0x00, 0x00, 0x00, + 0x43, 0x44, 0x00, 0x00, + 0x21, 0x07, 0x19, 0x83, + }, + }, + { + "LD_ABS halfword frag", + .u.insns = { + BPF_STMT(BPF_LD | BPF_ABS | BPF_H, 0x44), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { }, + { {0x40, 0x4344} }, + .frag_data = { + 0x42, 0x00, 0x00, 0x00, + 0x43, 0x44, 0x00, 0x00, + 0x21, 0x07, 0x19, 0x83, + }, + }, + { + "LD_ABS word frag", + .u.insns = { + BPF_STMT(BPF_LD | BPF_ABS | BPF_W, 0x48), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { }, + { {0x40, 0x21071983} }, + .frag_data = { + 0x42, 0x00, 0x00, 0x00, + 0x43, 0x44, 0x00, 0x00, + 0x21, 0x07, 0x19, 0x83, + }, + }, + { + "LD_ABS halfword mixed head/frag", + .u.insns = { + BPF_STMT(BPF_LD | BPF_ABS | BPF_H, 0x3f), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { [0x3e] = 0x25, [0x3f] = 0x05, }, + { {0x40, 0x0519} }, + .frag_data = { 0x19, 0x82 }, + }, + { + "LD_ABS word mixed head/frag", + .u.insns = { + BPF_STMT(BPF_LD | BPF_ABS | BPF_W, 0x3e), + BPF_STMT(BPF_RET | BPF_A, 0x0), + }, + CLASSIC | FLAG_SKB_FRAG, + { [0x3e] = 0x25, [0x3f] = 0x05, }, + { {0x40, 0x25051982} }, + .frag_data = { 0x19, 0x82 }, + }, }; static struct net_device dev; |