diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/idr.c | 66 | ||||
-rw-r--r-- | lib/nlattr.c | 54 | ||||
-rw-r--r-- | lib/radix-tree.c | 6 | ||||
-rw-r--r-- | lib/test_bpf.c | 364 |
4 files changed, 458 insertions, 32 deletions
diff --git a/lib/idr.c b/lib/idr.c index b13682bb0a1c..082778cf883e 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -7,45 +7,32 @@ DEFINE_PER_CPU(struct ida_bitmap *, ida_bitmap); static DEFINE_SPINLOCK(simple_ida_lock); -/** - * idr_alloc - allocate an id - * @idr: idr handle - * @ptr: pointer to be associated with the new id - * @start: the minimum id (inclusive) - * @end: the maximum id (exclusive) - * @gfp: memory allocation flags - * - * Allocates an unused ID in the range [start, end). Returns -ENOSPC - * if there are no unused IDs in that range. - * - * Note that @end is treated as max when <= 0. This is to always allow - * using @start + N as @end as long as N is inside integer range. - * - * Simultaneous modifications to the @idr are not allowed and should be - * prevented by the user, usually with a lock. idr_alloc() may be called - * concurrently with read-only accesses to the @idr, such as idr_find() and - * idr_for_each_entry(). - */ -int idr_alloc(struct idr *idr, void *ptr, int start, int end, gfp_t gfp) +int idr_alloc_cmn(struct idr *idr, void *ptr, unsigned long *index, + unsigned long start, unsigned long end, gfp_t gfp, + bool ext) { - void __rcu **slot; struct radix_tree_iter iter; + void __rcu **slot; - if (WARN_ON_ONCE(start < 0)) - return -EINVAL; if (WARN_ON_ONCE(radix_tree_is_internal_node(ptr))) return -EINVAL; radix_tree_iter_init(&iter, start); - slot = idr_get_free(&idr->idr_rt, &iter, gfp, end); + if (ext) + slot = idr_get_free_ext(&idr->idr_rt, &iter, gfp, end); + else + slot = idr_get_free(&idr->idr_rt, &iter, gfp, end); if (IS_ERR(slot)) return PTR_ERR(slot); radix_tree_iter_replace(&idr->idr_rt, &iter, slot, ptr); radix_tree_iter_tag_clear(&idr->idr_rt, &iter, IDR_FREE); - return iter.index; + + if (index) + *index = iter.index; + return 0; } -EXPORT_SYMBOL_GPL(idr_alloc); +EXPORT_SYMBOL_GPL(idr_alloc_cmn); /** * idr_alloc_cyclic - allocate new idr entry in a cyclical fashion @@ -134,6 +121,20 @@ void *idr_get_next(struct idr *idr, int *nextid) } EXPORT_SYMBOL(idr_get_next); +void *idr_get_next_ext(struct idr *idr, unsigned long *nextid) +{ + struct radix_tree_iter iter; + void __rcu **slot; + + slot = radix_tree_iter_find(&idr->idr_rt, &iter, *nextid); + if (!slot) + return NULL; + + *nextid = iter.index; + return rcu_dereference_raw(*slot); +} +EXPORT_SYMBOL(idr_get_next_ext); + /** * idr_replace - replace pointer for given id * @idr: idr handle @@ -150,12 +151,19 @@ EXPORT_SYMBOL(idr_get_next); */ void *idr_replace(struct idr *idr, void *ptr, int id) { + if (WARN_ON_ONCE(id < 0)) + return ERR_PTR(-EINVAL); + + return idr_replace_ext(idr, ptr, id); +} +EXPORT_SYMBOL(idr_replace); + +void *idr_replace_ext(struct idr *idr, void *ptr, unsigned long id) +{ struct radix_tree_node *node; void __rcu **slot = NULL; void *entry; - if (WARN_ON_ONCE(id < 0)) - return ERR_PTR(-EINVAL); if (WARN_ON_ONCE(radix_tree_is_internal_node(ptr))) return ERR_PTR(-EINVAL); @@ -167,7 +175,7 @@ void *idr_replace(struct idr *idr, void *ptr, int id) return entry; } -EXPORT_SYMBOL(idr_replace); +EXPORT_SYMBOL(idr_replace_ext); /** * DOC: IDA description diff --git a/lib/nlattr.c b/lib/nlattr.c index fb52435be42d..927c2f19f119 100644 --- a/lib/nlattr.c +++ b/lib/nlattr.c @@ -27,6 +27,30 @@ static const u8 nla_attr_minlen[NLA_TYPE_MAX+1] = { [NLA_S64] = sizeof(s64), }; +static int validate_nla_bitfield32(const struct nlattr *nla, + u32 *valid_flags_allowed) +{ + const struct nla_bitfield32 *bf = nla_data(nla); + u32 *valid_flags_mask = valid_flags_allowed; + + if (!valid_flags_allowed) + return -EINVAL; + + /*disallow invalid bit selector */ + if (bf->selector & ~*valid_flags_mask) + return -EINVAL; + + /*disallow invalid bit values */ + if (bf->value & ~*valid_flags_mask) + return -EINVAL; + + /*disallow valid bit values that are not selected*/ + if (bf->value & ~bf->selector) + return -EINVAL; + + return 0; +} + static int validate_nla(const struct nlattr *nla, int maxtype, const struct nla_policy *policy) { @@ -46,6 +70,12 @@ static int validate_nla(const struct nlattr *nla, int maxtype, return -ERANGE; break; + case NLA_BITFIELD32: + if (attrlen != sizeof(struct nla_bitfield32)) + return -ERANGE; + + return validate_nla_bitfield32(nla, pt->validation_data); + case NLA_NUL_STRING: if (pt->len) minlen = min_t(int, attrlen, pt->len + 1); @@ -272,6 +302,30 @@ size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize) EXPORT_SYMBOL(nla_strlcpy); /** + * nla_strdup - Copy string attribute payload into a newly allocated buffer + * @nla: attribute to copy the string from + * @flags: the type of memory to allocate (see kmalloc). + * + * Returns a pointer to the allocated buffer or NULL on error. + */ +char *nla_strdup(const struct nlattr *nla, gfp_t flags) +{ + size_t srclen = nla_len(nla); + char *src = nla_data(nla), *dst; + + if (srclen > 0 && src[srclen - 1] == '\0') + srclen--; + + dst = kmalloc(srclen + 1, flags); + if (dst != NULL) { + memcpy(dst, src, srclen); + dst[srclen] = '\0'; + } + return dst; +} +EXPORT_SYMBOL(nla_strdup); + +/** * nla_memcpy - Copy a netlink attribute into another memory area * @dest: where to copy to memcpy * @src: netlink attribute to copy from diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 3527eb364964..9717e2a50374 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -2138,13 +2138,13 @@ int ida_pre_get(struct ida *ida, gfp_t gfp) } EXPORT_SYMBOL(ida_pre_get); -void __rcu **idr_get_free(struct radix_tree_root *root, - struct radix_tree_iter *iter, gfp_t gfp, int end) +void __rcu **idr_get_free_cmn(struct radix_tree_root *root, + struct radix_tree_iter *iter, gfp_t gfp, + unsigned long max) { struct radix_tree_node *node = NULL, *child; void __rcu **slot = (void __rcu **)&root->rnode; unsigned long maxindex, start = iter->next_index; - unsigned long max = end > 0 ? end - 1 : INT_MAX; unsigned int shift, offset = 0; grow: diff --git a/lib/test_bpf.c b/lib/test_bpf.c index d9d5a410955c..aa8812ae6776 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -952,6 +952,32 @@ static struct bpf_test tests[] = { { { 2, 0 }, { 3, 1 }, { 4, MAX_K } }, }, { + "JGE (jt 0), test 1", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_LEN, 0), + BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), + BPF_JUMP(BPF_JMP | BPF_JGE | BPF_X, 0, 0, 1), + BPF_STMT(BPF_RET | BPF_K, 1), + BPF_STMT(BPF_RET | BPF_K, MAX_K) + }, + CLASSIC, + { 4, 4, 4, 3, 3 }, + { { 2, 0 }, { 3, 1 }, { 4, 1 } }, + }, + { + "JGE (jt 0), test 2", + .u.insns = { + BPF_STMT(BPF_LDX | BPF_LEN, 0), + BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), + BPF_JUMP(BPF_JMP | BPF_JGE | BPF_X, 0, 0, 1), + BPF_STMT(BPF_RET | BPF_K, 1), + BPF_STMT(BPF_RET | BPF_K, MAX_K) + }, + CLASSIC, + { 4, 4, 5, 3, 3 }, + { { 4, 1 }, { 5, 1 }, { 6, MAX_K } }, + }, + { "JGE", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), @@ -4492,6 +4518,35 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JSLT | BPF_K */ + { + "JMP_JSLT_K: Signed jump: if (-2 < -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 0xfffffffffffffffeLL), + BPF_JMP_IMM(BPF_JSLT, R1, -1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLT_K: Signed jump: if (-1 < -1) return 0", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_LD_IMM64(R1, 0xffffffffffffffffLL), + BPF_JMP_IMM(BPF_JSLT, R1, -1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JSGT | BPF_K */ { "JMP_JSGT_K: Signed jump: if (-1 > -2) return 1", @@ -4521,6 +4576,73 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JSLE | BPF_K */ + { + "JMP_JSLE_K: Signed jump: if (-2 <= -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 0xfffffffffffffffeLL), + BPF_JMP_IMM(BPF_JSLE, R1, -1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLE_K: Signed jump: if (-1 <= -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 0xffffffffffffffffLL), + BPF_JMP_IMM(BPF_JSLE, R1, -1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLE_K: Signed jump: value walk 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 6), + BPF_ALU64_IMM(BPF_SUB, R1, 1), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 4), + BPF_ALU64_IMM(BPF_SUB, R1, 1), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 2), + BPF_ALU64_IMM(BPF_SUB, R1, 1), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 1), + BPF_EXIT_INSN(), /* bad exit */ + BPF_ALU32_IMM(BPF_MOV, R0, 1), /* good exit */ + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLE_K: Signed jump: value walk 2", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 4), + BPF_ALU64_IMM(BPF_SUB, R1, 2), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 2), + BPF_ALU64_IMM(BPF_SUB, R1, 2), + BPF_JMP_IMM(BPF_JSLE, R1, 0, 1), + BPF_EXIT_INSN(), /* bad exit */ + BPF_ALU32_IMM(BPF_MOV, R0, 1), /* good exit */ + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JSGE | BPF_K */ { "JMP_JSGE_K: Signed jump: if (-1 >= -2) return 1", @@ -4617,6 +4739,35 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JLT | BPF_K */ + { + "JMP_JLT_K: if (2 < 3) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 2), + BPF_JMP_IMM(BPF_JLT, R1, 3, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JGT_K: Unsigned jump: if (1 < -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 1), + BPF_JMP_IMM(BPF_JLT, R1, -1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JGE | BPF_K */ { "JMP_JGE_K: if (3 >= 2) return 1", @@ -4632,6 +4783,21 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JLE | BPF_K */ + { + "JMP_JLE_K: if (2 <= 3) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 2), + BPF_JMP_IMM(BPF_JLE, R1, 3, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JGT | BPF_K jump backwards */ { "JMP_JGT_K: if (3 > 2) return 1 (jump backwards)", @@ -4662,6 +4828,36 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JLT | BPF_K jump backwards */ + { + "JMP_JGT_K: if (2 < 3) return 1 (jump backwards)", + .u.insns_int = { + BPF_JMP_IMM(BPF_JA, 0, 0, 2), /* goto start */ + BPF_ALU32_IMM(BPF_MOV, R0, 1), /* out: */ + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 0), /* start: */ + BPF_LD_IMM64(R1, 2), /* note: this takes 2 insns */ + BPF_JMP_IMM(BPF_JLT, R1, 3, -6), /* goto out */ + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JLE_K: if (3 <= 3) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_JMP_IMM(BPF_JLE, R1, 3, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JNE | BPF_K */ { "JMP_JNE_K: if (3 != 2) return 1", @@ -4752,6 +4948,37 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JSLT | BPF_X */ + { + "JMP_JSLT_X: Signed jump: if (-2 < -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, -1), + BPF_LD_IMM64(R2, -2), + BPF_JMP_REG(BPF_JSLT, R2, R1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLT_X: Signed jump: if (-1 < -1) return 0", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_LD_IMM64(R1, -1), + BPF_LD_IMM64(R2, -1), + BPF_JMP_REG(BPF_JSLT, R1, R2, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JSGE | BPF_X */ { "JMP_JSGE_X: Signed jump: if (-1 >= -2) return 1", @@ -4783,6 +5010,37 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JSLE | BPF_X */ + { + "JMP_JSLE_X: Signed jump: if (-2 <= -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, -1), + BPF_LD_IMM64(R2, -2), + BPF_JMP_REG(BPF_JSLE, R2, R1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLE_X: Signed jump: if (-1 <= -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, -1), + BPF_LD_IMM64(R2, -1), + BPF_JMP_REG(BPF_JSLE, R1, R2, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JGT | BPF_X */ { "JMP_JGT_X: if (3 > 2) return 1", @@ -4814,6 +5072,37 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JLT | BPF_X */ + { + "JMP_JLT_X: if (2 < 3) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_LD_IMM64(R2, 2), + BPF_JMP_REG(BPF_JLT, R2, R1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JLT_X: Unsigned jump: if (1 < -1) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, -1), + BPF_LD_IMM64(R2, 1), + BPF_JMP_REG(BPF_JLT, R2, R1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JGE | BPF_X */ { "JMP_JGE_X: if (3 >= 2) return 1", @@ -4845,6 +5134,37 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + /* BPF_JMP | BPF_JLE | BPF_X */ + { + "JMP_JLE_X: if (2 <= 3) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_LD_IMM64(R2, 2), + BPF_JMP_REG(BPF_JLE, R2, R1, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, + { + "JMP_JLE_X: if (3 <= 3) return 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_LD_IMM64(R2, 3), + BPF_JMP_REG(BPF_JLE, R1, R2, 1), + BPF_EXIT_INSN(), + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, { /* Mainly testing JIT + imm64 here. */ "JMP_JGE_X: ldimm64 test 1", @@ -4890,6 +5210,50 @@ static struct bpf_test tests[] = { { }, { { 0, 1 } }, }, + { + "JMP_JLE_X: ldimm64 test 1", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_LD_IMM64(R2, 2), + BPF_JMP_REG(BPF_JLE, R2, R1, 2), + BPF_LD_IMM64(R0, 0xffffffffffffffffULL), + BPF_LD_IMM64(R0, 0xeeeeeeeeeeeeeeeeULL), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 0xeeeeeeeeU } }, + }, + { + "JMP_JLE_X: ldimm64 test 2", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 0), + BPF_LD_IMM64(R1, 3), + BPF_LD_IMM64(R2, 2), + BPF_JMP_REG(BPF_JLE, R2, R1, 0), + BPF_LD_IMM64(R0, 0xffffffffffffffffULL), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 0xffffffffU } }, + }, + { + "JMP_JLE_X: ldimm64 test 3", + .u.insns_int = { + BPF_ALU32_IMM(BPF_MOV, R0, 1), + BPF_LD_IMM64(R1, 3), + BPF_LD_IMM64(R2, 2), + BPF_JMP_REG(BPF_JLE, R2, R1, 4), + BPF_LD_IMM64(R0, 0xffffffffffffffffULL), + BPF_LD_IMM64(R0, 0xeeeeeeeeeeeeeeeeULL), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 1 } }, + }, /* BPF_JMP | BPF_JNE | BPF_X */ { "JMP_JNE_X: if (3 != 2) return 1", |