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bpf: Add verifier test case for alignment.
Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
David S. Miller
parent
91045f5e52
commit
18b3ad90b6
@ -11,7 +11,8 @@ endif
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CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
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LDLIBS += -lcap -lelf
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TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs
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TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
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test_align
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TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o
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417
tools/testing/selftests/bpf/test_align.c
Normal file
417
tools/testing/selftests/bpf/test_align.c
Normal file
@ -0,0 +1,417 @@
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#include <asm/types.h>
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#include <linux/types.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include <linux/unistd.h>
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#include <linux/filter.h>
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#include <linux/bpf_perf_event.h>
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#include <linux/bpf.h>
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#include <bpf/bpf.h>
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#include "../../../include/linux/filter.h"
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#ifndef ARRAY_SIZE
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# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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#define MAX_INSNS 512
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#define MAX_MATCHES 16
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struct bpf_align_test {
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const char *descr;
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struct bpf_insn insns[MAX_INSNS];
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enum {
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UNDEF,
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ACCEPT,
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REJECT
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} result;
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enum bpf_prog_type prog_type;
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const char *matches[MAX_MATCHES];
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};
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static struct bpf_align_test tests[] = {
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{
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.descr = "mov",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_3, 2),
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BPF_MOV64_IMM(BPF_REG_3, 4),
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BPF_MOV64_IMM(BPF_REG_3, 8),
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BPF_MOV64_IMM(BPF_REG_3, 16),
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BPF_MOV64_IMM(BPF_REG_3, 32),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"1: R1=ctx R3=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
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"2: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
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"3: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
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"4: R1=ctx R3=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
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"5: R1=ctx R3=imm32,min_value=32,max_value=32,min_align=32 R10=fp",
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},
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},
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{
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.descr = "shift",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_3, 4),
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BPF_MOV64_IMM(BPF_REG_4, 32),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"1: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R10=fp",
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"2: R1=ctx R3=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
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"3: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
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"4: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
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"5: R1=ctx R3=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
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"6: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R10=fp",
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"7: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm32,min_value=32,max_value=32,min_align=32 R10=fp",
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"8: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
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"9: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
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"10: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
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"11: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
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},
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},
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{
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.descr = "addsub",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_3, 4),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 4),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 2),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"1: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
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"2: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=4 R10=fp",
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"3: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R10=fp",
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"4: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
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"5: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm12,min_value=12,max_value=12,min_align=4 R10=fp",
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"6: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm14,min_value=14,max_value=14,min_align=2 R10=fp",
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},
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},
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{
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.descr = "mul",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_3, 7),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 2),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 4),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"1: R1=ctx R3=imm7,min_value=7,max_value=7,min_align=1 R10=fp",
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"2: R1=ctx R3=imm7,min_value=7,max_value=7,min_align=1 R10=fp",
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"3: R1=ctx R3=imm14,min_value=14,max_value=14,min_align=2 R10=fp",
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"4: R1=ctx R3=imm56,min_value=56,max_value=56,min_align=4 R10=fp",
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},
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},
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#define PREP_PKT_POINTERS \
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, \
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offsetof(struct __sk_buff, data)), \
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BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, \
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offsetof(struct __sk_buff, data_end))
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#define LOAD_UNKNOWN(DST_REG) \
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PREP_PKT_POINTERS, \
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BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), \
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), \
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BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 1), \
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BPF_EXIT_INSN(), \
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BPF_LDX_MEM(BPF_B, DST_REG, BPF_REG_2, 0)
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{
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.descr = "unknown shift",
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.insns = {
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LOAD_UNKNOWN(BPF_REG_3),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
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LOAD_UNKNOWN(BPF_REG_4),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 5),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"7: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R10=fp",
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"8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv55,min_align=2 R10=fp",
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"9: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv54,min_align=4 R10=fp",
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"10: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv53,min_align=8 R10=fp",
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"11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv52,min_align=16 R10=fp",
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"18: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv56 R10=fp",
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"19: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv51,min_align=32 R10=fp",
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"20: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv52,min_align=16 R10=fp",
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"21: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv53,min_align=8 R10=fp",
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"22: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv54,min_align=4 R10=fp",
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"23: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv55,min_align=2 R10=fp",
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},
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},
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{
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.descr = "unknown mul",
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.insns = {
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LOAD_UNKNOWN(BPF_REG_3),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 1),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 4),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 8),
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BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"7: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R10=fp",
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"8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
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"9: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv55,min_align=1 R10=fp",
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"10: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
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"11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv54,min_align=2 R10=fp",
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"12: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
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"13: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv53,min_align=4 R10=fp",
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"14: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
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"15: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv52,min_align=8 R10=fp",
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"16: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv50,min_align=8 R10=fp"
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},
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},
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{
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.descr = "packet const offset",
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.insns = {
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PREP_PKT_POINTERS,
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BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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/* Skip over ethernet header. */
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
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BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
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BPF_EXIT_INSN(),
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BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 0),
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BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 1),
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BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 2),
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BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 3),
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BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 0),
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BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 2),
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BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.matches = {
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"4: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R5=pkt(id=0,off=0,r=0) R10=fp",
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"5: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R5=pkt(id=0,off=14,r=0) R10=fp",
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"6: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R4=pkt(id=0,off=14,r=0) R5=pkt(id=0,off=14,r=0) R10=fp",
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"10: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv56 R5=pkt(id=0,off=14,r=18) R10=fp",
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"14: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv48 R5=pkt(id=0,off=14,r=18) R10=fp",
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"15: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv48 R5=pkt(id=0,off=14,r=18) R10=fp",
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},
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},
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{
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.descr = "packet variable offset",
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.insns = {
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LOAD_UNKNOWN(BPF_REG_6),
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
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/* First, add a constant to the R5 packet pointer,
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* then a variable with a known alignment.
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*/
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BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
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BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
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BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
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BPF_EXIT_INSN(),
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BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
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|
||||
/* Now, test in the other direction. Adding first
|
||||
* the variable offset to R5, then the constant.
|
||||
*/
|
||||
BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
|
||||
BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
|
||||
BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
|
||||
BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
|
||||
BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
|
||||
BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
|
||||
|
||||
BPF_MOV64_IMM(BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.matches = {
|
||||
/* Calculated offset in R6 has unknown value, but known
|
||||
* alignment of 4.
|
||||
*/
|
||||
"8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R6=inv54,min_align=4 R10=fp",
|
||||
|
||||
/* Offset is added to packet pointer R5, resulting in known
|
||||
* auxiliary alignment and offset.
|
||||
*/
|
||||
"11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R5=pkt(id=1,off=0,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
|
||||
|
||||
/* At the time the word size load is performed from R5,
|
||||
* it's total offset is NET_IP_ALIGN + reg->off (0) +
|
||||
* reg->aux_off (14) which is 16. Then the variable
|
||||
* offset is considered using reg->aux_off_align which
|
||||
* is 4 and meets the load's requirements.
|
||||
*/
|
||||
"15: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=1,off=4,r=4),aux_off=14,aux_off_align=4 R5=pkt(id=1,off=0,r=4),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
|
||||
|
||||
|
||||
/* Variable offset is added to R5 packet pointer,
|
||||
* resulting in auxiliary alignment of 4.
|
||||
*/
|
||||
"18: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off=14,aux_off_align=4 R5=pkt(id=2,off=0,r=0),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
|
||||
|
||||
/* Constant offset is added to R5, resulting in
|
||||
* reg->off of 14.
|
||||
*/
|
||||
"19: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off=14,aux_off_align=4 R5=pkt(id=2,off=14,r=0),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
|
||||
|
||||
/* At the time the word size load is performed from R5,
|
||||
* it's total offset is NET_IP_ALIGN + reg->off (14) which
|
||||
* is 16. Then the variable offset is considered using
|
||||
* reg->aux_off_align which is 4 and meets the load's
|
||||
* requirements.
|
||||
*/
|
||||
"23: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=2,off=18,r=18),aux_off_align=4 R5=pkt(id=2,off=14,r=18),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
static int probe_filter_length(const struct bpf_insn *fp)
|
||||
{
|
||||
int len;
|
||||
|
||||
for (len = MAX_INSNS - 1; len > 0; --len)
|
||||
if (fp[len].code != 0 || fp[len].imm != 0)
|
||||
break;
|
||||
return len + 1;
|
||||
}
|
||||
|
||||
static char bpf_vlog[32768];
|
||||
|
||||
static int do_test_single(struct bpf_align_test *test)
|
||||
{
|
||||
struct bpf_insn *prog = test->insns;
|
||||
int prog_type = test->prog_type;
|
||||
int prog_len, i;
|
||||
int fd_prog;
|
||||
int ret;
|
||||
|
||||
prog_len = probe_filter_length(prog);
|
||||
fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
|
||||
prog, prog_len, 1, "GPL", 0,
|
||||
bpf_vlog, sizeof(bpf_vlog));
|
||||
if (fd_prog < 0) {
|
||||
printf("Failed to load program.\n");
|
||||
printf("%s", bpf_vlog);
|
||||
ret = 1;
|
||||
} else {
|
||||
ret = 0;
|
||||
for (i = 0; i < MAX_MATCHES; i++) {
|
||||
const char *t, *m = test->matches[i];
|
||||
|
||||
if (!m)
|
||||
break;
|
||||
t = strstr(bpf_vlog, m);
|
||||
if (!t) {
|
||||
printf("Failed to find match: %s\n", m);
|
||||
ret = 1;
|
||||
printf("%s", bpf_vlog);
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* printf("%s", bpf_vlog); */
|
||||
close(fd_prog);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int do_test(unsigned int from, unsigned int to)
|
||||
{
|
||||
int all_pass = 0;
|
||||
int all_fail = 0;
|
||||
unsigned int i;
|
||||
|
||||
for (i = from; i < to; i++) {
|
||||
struct bpf_align_test *test = &tests[i];
|
||||
int fail;
|
||||
|
||||
printf("Test %3d: %s ... ",
|
||||
i, test->descr);
|
||||
fail = do_test_single(test);
|
||||
if (fail) {
|
||||
all_fail++;
|
||||
printf("FAIL\n");
|
||||
} else {
|
||||
all_pass++;
|
||||
printf("PASS\n");
|
||||
}
|
||||
}
|
||||
printf("Results: %d pass %d fail\n",
|
||||
all_pass, all_fail);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
unsigned int from = 0, to = ARRAY_SIZE(tests);
|
||||
|
||||
if (argc == 3) {
|
||||
unsigned int l = atoi(argv[argc - 2]);
|
||||
unsigned int u = atoi(argv[argc - 1]);
|
||||
|
||||
if (l < to && u < to) {
|
||||
from = l;
|
||||
to = u + 1;
|
||||
}
|
||||
} else if (argc == 2) {
|
||||
unsigned int t = atoi(argv[argc - 1]);
|
||||
|
||||
if (t < to) {
|
||||
from = t;
|
||||
to = t + 1;
|
||||
}
|
||||
}
|
||||
return do_test(from, to);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user