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treewide: use get_random_u32_below() instead of deprecated function

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This is a simple mechanical transformation done by:

@@
expression E;
@@
- prandom_u32_max
+ get_random_u32_below
  (E)

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs
Reviewed-by: SeongJae Park <sj@kernel.org> # for damon
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> # for arm
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2022-10-09 20:44:02 -06:00
parent 7f576b2593
commit 8032bf1233
132 changed files with 280 additions and 280 deletions
Download Patch File Download Diff File Expand all files Collapse all files

86
crypto/testmgr.c
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@@ -855,9 +855,9 @@ static int prepare_keybuf(const u8 *key, unsigned int ksize,
/* Generate a random length in range [0, max_len], but prefer smaller values */
static unsigned int generate_random_length(unsigned int max_len)
{
unsigned int len = prandom_u32_max(max_len + 1);
unsigned int len = get_random_u32_below(max_len + 1);
switch (prandom_u32_max(4)) {
switch (get_random_u32_below(4)) {
case 0:
return len % 64;
case 1:
@@ -874,14 +874,14 @@ static void flip_random_bit(u8 *buf, size_t size)
{
size_t bitpos;
bitpos = prandom_u32_max(size * 8);
bitpos = get_random_u32_below(size * 8);
buf[bitpos / 8] ^= 1 << (bitpos % 8);
}
/* Flip a random byte in the given nonempty data buffer */
static void flip_random_byte(u8 *buf, size_t size)
{
buf[prandom_u32_max(size)] ^= 0xff;
buf[get_random_u32_below(size)] ^= 0xff;
}
/* Sometimes make some random changes to the given nonempty data buffer */
@@ -891,15 +891,15 @@ static void mutate_buffer(u8 *buf, size_t size)
size_t i;
/* Sometimes flip some bits */
if (prandom_u32_max(4) == 0) {
num_flips = min_t(size_t, 1 << prandom_u32_max(8), size * 8);
if (get_random_u32_below(4) == 0) {
num_flips = min_t(size_t, 1 << get_random_u32_below(8), size * 8);
for (i = 0; i < num_flips; i++)
flip_random_bit(buf, size);
}
/* Sometimes flip some bytes */
if (prandom_u32_max(4) == 0) {
num_flips = min_t(size_t, 1 << prandom_u32_max(8), size);
if (get_random_u32_below(4) == 0) {
num_flips = min_t(size_t, 1 << get_random_u32_below(8), size);
for (i = 0; i < num_flips; i++)
flip_random_byte(buf, size);
}
@@ -915,11 +915,11 @@ static void generate_random_bytes(u8 *buf, size_t count)
if (count == 0)
return;
switch (prandom_u32_max(8)) { /* Choose a generation strategy */
switch (get_random_u32_below(8)) { /* Choose a generation strategy */
case 0:
case 1:
/* All the same byte, plus optional mutations */
switch (prandom_u32_max(4)) {
switch (get_random_u32_below(4)) {
case 0:
b = 0x00;
break;
@@ -959,24 +959,24 @@ static char *generate_random_sgl_divisions(struct test_sg_division *divs,
unsigned int this_len;
const char *flushtype_str;
if (div == &divs[max_divs - 1] || prandom_u32_max(2) == 0)
if (div == &divs[max_divs - 1] || get_random_u32_below(2) == 0)
this_len = remaining;
else
this_len = 1 + prandom_u32_max(remaining);
this_len = 1 + get_random_u32_below(remaining);
div->proportion_of_total = this_len;
if (prandom_u32_max(4) == 0)
div->offset = (PAGE_SIZE - 128) + prandom_u32_max(128);
else if (prandom_u32_max(2) == 0)
div->offset = prandom_u32_max(32);
if (get_random_u32_below(4) == 0)
div->offset = (PAGE_SIZE - 128) + get_random_u32_below(128);
else if (get_random_u32_below(2) == 0)
div->offset = get_random_u32_below(32);
else
div->offset = prandom_u32_max(PAGE_SIZE);
if (prandom_u32_max(8) == 0)
div->offset = get_random_u32_below(PAGE_SIZE);
if (get_random_u32_below(8) == 0)
div->offset_relative_to_alignmask = true;
div->flush_type = FLUSH_TYPE_NONE;
if (gen_flushes) {
switch (prandom_u32_max(4)) {
switch (get_random_u32_below(4)) {
case 0:
div->flush_type = FLUSH_TYPE_REIMPORT;
break;
@@ -988,7 +988,7 @@ static char *generate_random_sgl_divisions(struct test_sg_division *divs,
if (div->flush_type != FLUSH_TYPE_NONE &&
!(req_flags & CRYPTO_TFM_REQ_MAY_SLEEP) &&
prandom_u32_max(2) == 0)
get_random_u32_below(2) == 0)
div->nosimd = true;
switch (div->flush_type) {
@@ -1035,7 +1035,7 @@ static void generate_random_testvec_config(struct testvec_config *cfg,
p += scnprintf(p, end - p, "random:");
switch (prandom_u32_max(4)) {
switch (get_random_u32_below(4)) {
case 0:
case 1:
cfg->inplace_mode = OUT_OF_PLACE;
@@ -1050,12 +1050,12 @@ static void generate_random_testvec_config(struct testvec_config *cfg,
break;
}
if (prandom_u32_max(2) == 0) {
if (get_random_u32_below(2) == 0) {
cfg->req_flags |= CRYPTO_TFM_REQ_MAY_SLEEP;
p += scnprintf(p, end - p, " may_sleep");
}
switch (prandom_u32_max(4)) {
switch (get_random_u32_below(4)) {
case 0:
cfg->finalization_type = FINALIZATION_TYPE_FINAL;
p += scnprintf(p, end - p, " use_final");
@@ -1071,7 +1071,7 @@ static void generate_random_testvec_config(struct testvec_config *cfg,
}
if (!(cfg->req_flags & CRYPTO_TFM_REQ_MAY_SLEEP) &&
prandom_u32_max(2) == 0) {
get_random_u32_below(2) == 0) {
cfg->nosimd = true;
p += scnprintf(p, end - p, " nosimd");
}
@@ -1084,7 +1084,7 @@ static void generate_random_testvec_config(struct testvec_config *cfg,
cfg->req_flags);
p += scnprintf(p, end - p, "]");
if (cfg->inplace_mode == OUT_OF_PLACE && prandom_u32_max(2) == 0) {
if (cfg->inplace_mode == OUT_OF_PLACE && get_random_u32_below(2) == 0) {
p += scnprintf(p, end - p, " dst_divs=[");
p = generate_random_sgl_divisions(cfg->dst_divs,
ARRAY_SIZE(cfg->dst_divs),
@@ -1093,13 +1093,13 @@ static void generate_random_testvec_config(struct testvec_config *cfg,
p += scnprintf(p, end - p, "]");
}
if (prandom_u32_max(2) == 0) {
cfg->iv_offset = 1 + prandom_u32_max(MAX_ALGAPI_ALIGNMASK);
if (get_random_u32_below(2) == 0) {
cfg->iv_offset = 1 + get_random_u32_below(MAX_ALGAPI_ALIGNMASK);
p += scnprintf(p, end - p, " iv_offset=%u", cfg->iv_offset);
}
if (prandom_u32_max(2) == 0) {
cfg->key_offset = 1 + prandom_u32_max(MAX_ALGAPI_ALIGNMASK);
if (get_random_u32_below(2) == 0) {
cfg->key_offset = 1 + get_random_u32_below(MAX_ALGAPI_ALIGNMASK);
p += scnprintf(p, end - p, " key_offset=%u", cfg->key_offset);
}
@@ -1652,8 +1652,8 @@ static void generate_random_hash_testvec(struct shash_desc *desc,
vec->ksize = 0;
if (maxkeysize) {
vec->ksize = maxkeysize;
if (prandom_u32_max(4) == 0)
vec->ksize = 1 + prandom_u32_max(maxkeysize);
if (get_random_u32_below(4) == 0)
vec->ksize = 1 + get_random_u32_below(maxkeysize);
generate_random_bytes((u8 *)vec->key, vec->ksize);
vec->setkey_error = crypto_shash_setkey(desc->tfm, vec->key,
@@ -2218,13 +2218,13 @@ static void mutate_aead_message(struct aead_testvec *vec, bool aad_iv,
const unsigned int aad_tail_size = aad_iv ? ivsize : 0;
const unsigned int authsize = vec->clen - vec->plen;
if (prandom_u32_max(2) == 0 && vec->alen > aad_tail_size) {
if (get_random_u32_below(2) == 0 && vec->alen > aad_tail_size) {
/* Mutate the AAD */
flip_random_bit((u8 *)vec->assoc, vec->alen - aad_tail_size);
if (prandom_u32_max(2) == 0)
if (get_random_u32_below(2) == 0)
return;
}
if (prandom_u32_max(2) == 0) {
if (get_random_u32_below(2) == 0) {
/* Mutate auth tag (assuming it's at the end of ciphertext) */
flip_random_bit((u8 *)vec->ctext + vec->plen, authsize);
} else {
@@ -2249,7 +2249,7 @@ static void generate_aead_message(struct aead_request *req,
const unsigned int ivsize = crypto_aead_ivsize(tfm);
const unsigned int authsize = vec->clen - vec->plen;
const bool inauthentic = (authsize >= MIN_COLLISION_FREE_AUTHSIZE) &&
(prefer_inauthentic || prandom_u32_max(4) == 0);
(prefer_inauthentic || get_random_u32_below(4) == 0);
/* Generate the AAD. */
generate_random_bytes((u8 *)vec->assoc, vec->alen);
@@ -2257,7 +2257,7 @@ static void generate_aead_message(struct aead_request *req,
/* Avoid implementation-defined behavior. */
memcpy((u8 *)vec->assoc + vec->alen - ivsize, vec->iv, ivsize);
if (inauthentic && prandom_u32_max(2) == 0) {
if (inauthentic && get_random_u32_below(2) == 0) {
/* Generate a random ciphertext. */
generate_random_bytes((u8 *)vec->ctext, vec->clen);
} else {
@@ -2321,8 +2321,8 @@ static void generate_random_aead_testvec(struct aead_request *req,
/* Key: length in [0, maxkeysize], but usually choose maxkeysize */
vec->klen = maxkeysize;
if (prandom_u32_max(4) == 0)
vec->klen = prandom_u32_max(maxkeysize + 1);
if (get_random_u32_below(4) == 0)
vec->klen = get_random_u32_below(maxkeysize + 1);
generate_random_bytes((u8 *)vec->key, vec->klen);
vec->setkey_error = crypto_aead_setkey(tfm, vec->key, vec->klen);
@@ -2331,8 +2331,8 @@ static void generate_random_aead_testvec(struct aead_request *req,
/* Tag length: in [0, maxauthsize], but usually choose maxauthsize */
authsize = maxauthsize;
if (prandom_u32_max(4) == 0)
authsize = prandom_u32_max(maxauthsize + 1);
if (get_random_u32_below(4) == 0)
authsize = get_random_u32_below(maxauthsize + 1);
if (prefer_inauthentic && authsize < MIN_COLLISION_FREE_AUTHSIZE)
authsize = MIN_COLLISION_FREE_AUTHSIZE;
if (WARN_ON(authsize > maxdatasize))
@@ -2342,7 +2342,7 @@ static void generate_random_aead_testvec(struct aead_request *req,
/* AAD, plaintext, and ciphertext lengths */
total_len = generate_random_length(maxdatasize);
if (prandom_u32_max(4) == 0)
if (get_random_u32_below(4) == 0)
vec->alen = 0;
else
vec->alen = generate_random_length(total_len);
@@ -2958,8 +2958,8 @@ static void generate_random_cipher_testvec(struct skcipher_request *req,
/* Key: length in [0, maxkeysize], but usually choose maxkeysize */
vec->klen = maxkeysize;
if (prandom_u32_max(4) == 0)
vec->klen = prandom_u32_max(maxkeysize + 1);
if (get_random_u32_below(4) == 0)
vec->klen = get_random_u32_below(maxkeysize + 1);
generate_random_bytes((u8 *)vec->key, vec->klen);
vec->setkey_error = crypto_skcipher_setkey(tfm, vec->key, vec->klen);