diff options
Diffstat (limited to 'tools')
-rw-r--r-- | tools/testing/selftests/bpf/test_sock_addr.c | 28 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/test_verifier.c | 48 |
2 files changed, 62 insertions, 14 deletions
diff --git a/tools/testing/selftests/bpf/test_sock_addr.c b/tools/testing/selftests/bpf/test_sock_addr.c index aeeb76a54d63..73b7493d4120 100644 --- a/tools/testing/selftests/bpf/test_sock_addr.c +++ b/tools/testing/selftests/bpf/test_sock_addr.c @@ -574,24 +574,44 @@ static int bind4_prog_load(const struct sock_addr_test *test) /* if (sk.family == AF_INET && */ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6, offsetof(struct bpf_sock_addr, family)), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, AF_INET, 16), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, AF_INET, 24), /* (sk.type == SOCK_DGRAM || sk.type == SOCK_STREAM) && */ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6, offsetof(struct bpf_sock_addr, type)), BPF_JMP_IMM(BPF_JNE, BPF_REG_7, SOCK_DGRAM, 1), BPF_JMP_A(1), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, SOCK_STREAM, 12), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, SOCK_STREAM, 20), /* 1st_byte_of_user_ip4 == expected && */ BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_6, offsetof(struct bpf_sock_addr, user_ip4)), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr8[0], 10), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr8[0], 18), + + /* 2nd_byte_of_user_ip4 == expected && */ + BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_6, + offsetof(struct bpf_sock_addr, user_ip4) + 1), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr8[1], 16), + + /* 3rd_byte_of_user_ip4 == expected && */ + BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_6, + offsetof(struct bpf_sock_addr, user_ip4) + 2), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr8[2], 14), + + /* 4th_byte_of_user_ip4 == expected && */ + BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_6, + offsetof(struct bpf_sock_addr, user_ip4) + 3), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr8[3], 12), /* 1st_half_of_user_ip4 == expected && */ BPF_LDX_MEM(BPF_H, BPF_REG_7, BPF_REG_6, offsetof(struct bpf_sock_addr, user_ip4)), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr16[0], 8), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr16[0], 10), + + /* 2nd_half_of_user_ip4 == expected && */ + BPF_LDX_MEM(BPF_H, BPF_REG_7, BPF_REG_6, + offsetof(struct bpf_sock_addr, user_ip4) + 2), + BPF_JMP_IMM(BPF_JNE, BPF_REG_7, ip4.u4_addr16[1], 8), /* whole_user_ip4 == expected) { */ BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6, diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 6f61df62f690..54d16fbdef8b 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -2026,29 +2026,27 @@ static struct bpf_test tests[] = { .result = ACCEPT, }, { - "check skb->hash byte load not permitted 1", + "check skb->hash byte load permitted 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 1), BPF_EXIT_INSN(), }, - .errstr = "invalid bpf_context access", - .result = REJECT, + .result = ACCEPT, }, { - "check skb->hash byte load not permitted 2", + "check skb->hash byte load permitted 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 2), BPF_EXIT_INSN(), }, - .errstr = "invalid bpf_context access", - .result = REJECT, + .result = ACCEPT, }, { - "check skb->hash byte load not permitted 3", + "check skb->hash byte load permitted 3", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER == __LITTLE_ENDIAN @@ -2060,8 +2058,7 @@ static struct bpf_test tests[] = { #endif BPF_EXIT_INSN(), }, - .errstr = "invalid bpf_context access", - .result = REJECT, + .result = ACCEPT, }, { "check cb access: byte, wrong type", @@ -2173,7 +2170,7 @@ static struct bpf_test tests[] = { .result = ACCEPT, }, { - "check skb->hash half load not permitted", + "check skb->hash half load permitted 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER == __LITTLE_ENDIAN @@ -2185,6 +2182,37 @@ static struct bpf_test tests[] = { #endif BPF_EXIT_INSN(), }, + .result = ACCEPT, + }, + { + "check skb->hash half load not permitted, unaligned 1", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), +#if __BYTE_ORDER == __LITTLE_ENDIAN + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 1), +#else + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 3), +#endif + BPF_EXIT_INSN(), + }, + .errstr = "invalid bpf_context access", + .result = REJECT, + }, + { + "check skb->hash half load not permitted, unaligned 3", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), +#if __BYTE_ORDER == __LITTLE_ENDIAN + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 3), +#else + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 1), +#endif + BPF_EXIT_INSN(), + }, .errstr = "invalid bpf_context access", .result = REJECT, }, |