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selftests/bpf: Fix test_align verifier log patterns
Commit294f2fc6da("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") changed the way verifier logs some of its state, adjust the test_align accordingly. Where possible, I tried to not copy-paste the entire log line and resorted to dropping the last closing brace instead. Fixes:294f2fc6da("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200515194904.229296-1-sdf@google.com
This commit is contained in:
Stanislav Fomichev
Daniel Borkmann
parent
8d35d74f52
commit
5366d22691
@ -359,15 +359,15 @@ static struct bpf_align_test tests[] = {
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* is still (4n), fixed offset is not changed.
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* Also, we create a new reg->id.
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*/
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{29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc))"},
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{29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc)"},
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/* At the time the word size load is performed from R5,
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* its total fixed offset is NET_IP_ALIGN + reg->off (18)
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* which is 20. Then the variable offset is (4n), so
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* the total offset is 4-byte aligned and meets the
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* load's requirements.
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*/
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{33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"},
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{33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"},
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{33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"},
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{33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"},
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},
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},
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{
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@ -410,15 +410,15 @@ static struct bpf_align_test tests[] = {
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/* Adding 14 makes R6 be (4n+2) */
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{9, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
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/* Packet pointer has (4n+2) offset */
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{11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
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{13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
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{11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"},
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{13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"},
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/* At the time the word size load is performed from R5,
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* its total fixed offset is NET_IP_ALIGN + reg->off (0)
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* which is 2. Then the variable offset is (4n+2), so
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* the total offset is 4-byte aligned and meets the
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* load's requirements.
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*/
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{15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
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{15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"},
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/* Newly read value in R6 was shifted left by 2, so has
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* known alignment of 4.
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*/
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@ -426,15 +426,15 @@ static struct bpf_align_test tests[] = {
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/* Added (4n) to packet pointer's (4n+2) var_off, giving
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* another (4n+2).
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*/
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{19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
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{21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
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{19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"},
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{21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"},
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/* At the time the word size load is performed from R5,
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* its total fixed offset is NET_IP_ALIGN + reg->off (0)
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* which is 2. Then the variable offset is (4n+2), so
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* the total offset is 4-byte aligned and meets the
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* load's requirements.
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*/
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{23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
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{23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"},
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},
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},
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{
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@ -469,16 +469,16 @@ static struct bpf_align_test tests[] = {
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.matches = {
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{4, "R5_w=pkt_end(id=0,off=0,imm=0)"},
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/* (ptr - ptr) << 2 == unknown, (4n) */
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{6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc))"},
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{6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"},
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/* (4n) + 14 == (4n+2). We blow our bounds, because
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* the add could overflow.
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*/
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{7, "R5_w=inv(id=0,var_off=(0x2; 0xfffffffffffffffc))"},
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{7, "R5_w=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"},
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/* Checked s>=0 */
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{9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
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{9, "R5=inv(id=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
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/* packet pointer + nonnegative (4n+2) */
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{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
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{13, "R4_w=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
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{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
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{13, "R4_w=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
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/* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine.
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* We checked the bounds, but it might have been able
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* to overflow if the packet pointer started in the
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@ -486,7 +486,7 @@ static struct bpf_align_test tests[] = {
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* So we did not get a 'range' on R6, and the access
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* attempt will fail.
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*/
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{15, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
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{15, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
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}
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},
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{
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@ -528,7 +528,7 @@ static struct bpf_align_test tests[] = {
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/* New unknown value in R7 is (4n) */
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{11, "R7_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"},
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/* Subtracting it from R6 blows our unsigned bounds */
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{12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,var_off=(0x2; 0xfffffffffffffffc))"},
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{12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"},
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/* Checked s>= 0 */
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{14, "R6=inv(id=0,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"},
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/* At the time the word size load is performed from R5,
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@ -537,7 +537,8 @@ static struct bpf_align_test tests[] = {
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* the total offset is 4-byte aligned and meets the
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* load's requirements.
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*/
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{20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"},
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{20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc)"},
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},
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},
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{
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@ -579,18 +580,18 @@ static struct bpf_align_test tests[] = {
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/* Adding 14 makes R6 be (4n+2) */
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{11, "R6_w=inv(id=0,umin_value=14,umax_value=74,var_off=(0x2; 0x7c))"},
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/* Subtracting from packet pointer overflows ubounds */
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{13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c))"},
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{13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c)"},
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/* New unknown value in R7 is (4n), >= 76 */
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{15, "R7_w=inv(id=0,umin_value=76,umax_value=1096,var_off=(0x0; 0x7fc))"},
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/* Adding it to packet pointer gives nice bounds again */
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{16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"},
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{16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"},
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/* At the time the word size load is performed from R5,
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* its total fixed offset is NET_IP_ALIGN + reg->off (0)
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* which is 2. Then the variable offset is (4n+2), so
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* the total offset is 4-byte aligned and meets the
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* load's requirements.
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*/
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{20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"},
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{20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"},
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},
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},
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};
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