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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack')
-rw-r--r--roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/build.info2
-rw-r--r--roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/stack.c413
2 files changed, 415 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/build.info b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/build.info
new file mode 100644
index 000000000..e5870210a
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/build.info
@@ -0,0 +1,2 @@
+LIBS=../../libcrypto
+SOURCE[../../libcrypto]=stack.c
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/stack.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/stack.c
new file mode 100644
index 000000000..975515db5
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/stack/stack.c
@@ -0,0 +1,413 @@
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include "internal/numbers.h"
+#include <openssl/stack.h>
+#include <openssl/objects.h>
+#include <errno.h>
+#include <openssl/e_os2.h> /* For ossl_inline */
+
+/*
+ * The initial number of nodes in the array.
+ */
+static const int min_nodes = 4;
+static const int max_nodes = SIZE_MAX / sizeof(void *) < INT_MAX
+ ? (int)(SIZE_MAX / sizeof(void *))
+ : INT_MAX;
+
+struct stack_st {
+ int num;
+ const void **data;
+ int sorted;
+ int num_alloc;
+ OPENSSL_sk_compfunc comp;
+};
+
+OPENSSL_sk_compfunc OPENSSL_sk_set_cmp_func(OPENSSL_STACK *sk, OPENSSL_sk_compfunc c)
+{
+ OPENSSL_sk_compfunc old = sk->comp;
+
+ if (sk->comp != c)
+ sk->sorted = 0;
+ sk->comp = c;
+
+ return old;
+}
+
+OPENSSL_STACK *OPENSSL_sk_dup(const OPENSSL_STACK *sk)
+{
+ OPENSSL_STACK *ret;
+
+ if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL) {
+ CRYPTOerr(CRYPTO_F_OPENSSL_SK_DUP, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ /* direct structure assignment */
+ *ret = *sk;
+
+ if (sk->num == 0) {
+ /* postpone |ret->data| allocation */
+ ret->data = NULL;
+ ret->num_alloc = 0;
+ return ret;
+ }
+ /* duplicate |sk->data| content */
+ if ((ret->data = OPENSSL_malloc(sizeof(*ret->data) * sk->num_alloc)) == NULL)
+ goto err;
+ memcpy(ret->data, sk->data, sizeof(void *) * sk->num);
+ return ret;
+ err:
+ OPENSSL_sk_free(ret);
+ return NULL;
+}
+
+OPENSSL_STACK *OPENSSL_sk_deep_copy(const OPENSSL_STACK *sk,
+ OPENSSL_sk_copyfunc copy_func,
+ OPENSSL_sk_freefunc free_func)
+{
+ OPENSSL_STACK *ret;
+ int i;
+
+ if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL) {
+ CRYPTOerr(CRYPTO_F_OPENSSL_SK_DEEP_COPY, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ /* direct structure assignment */
+ *ret = *sk;
+
+ if (sk->num == 0) {
+ /* postpone |ret| data allocation */
+ ret->data = NULL;
+ ret->num_alloc = 0;
+ return ret;
+ }
+
+ ret->num_alloc = sk->num > min_nodes ? sk->num : min_nodes;
+ ret->data = OPENSSL_zalloc(sizeof(*ret->data) * ret->num_alloc);
+ if (ret->data == NULL) {
+ OPENSSL_free(ret);
+ return NULL;
+ }
+
+ for (i = 0; i < ret->num; ++i) {
+ if (sk->data[i] == NULL)
+ continue;
+ if ((ret->data[i] = copy_func(sk->data[i])) == NULL) {
+ while (--i >= 0)
+ if (ret->data[i] != NULL)
+ free_func((void *)ret->data[i]);
+ OPENSSL_sk_free(ret);
+ return NULL;
+ }
+ }
+ return ret;
+}
+
+OPENSSL_STACK *OPENSSL_sk_new_null(void)
+{
+ return OPENSSL_sk_new_reserve(NULL, 0);
+}
+
+OPENSSL_STACK *OPENSSL_sk_new(OPENSSL_sk_compfunc c)
+{
+ return OPENSSL_sk_new_reserve(c, 0);
+}
+
+/*
+ * Calculate the array growth based on the target size.
+ *
+ * The growth fraction is a rational number and is defined by a numerator
+ * and a denominator. According to Andrew Koenig in his paper "Why Are
+ * Vectors Efficient?" from JOOP 11(5) 1998, this factor should be less
+ * than the golden ratio (1.618...).
+ *
+ * We use 3/2 = 1.5 for simplicity of calculation and overflow checking.
+ * Another option 8/5 = 1.6 allows for slightly faster growth, although safe
+ * computation is more difficult.
+ *
+ * The limit to avoid overflow is spot on. The modulo three correction term
+ * ensures that the limit is the largest number than can be expanded by the
+ * growth factor without exceeding the hard limit.
+ *
+ * Do not call it with |current| lower than 2, or it will infinitely loop.
+ */
+static ossl_inline int compute_growth(int target, int current)
+{
+ const int limit = (max_nodes / 3) * 2 + (max_nodes % 3 ? 1 : 0);
+
+ while (current < target) {
+ /* Check to see if we're at the hard limit */
+ if (current >= max_nodes)
+ return 0;
+
+ /* Expand the size by a factor of 3/2 if it is within range */
+ current = current < limit ? current + current / 2 : max_nodes;
+ }
+ return current;
+}
+
+/* internal STACK storage allocation */
+static int sk_reserve(OPENSSL_STACK *st, int n, int exact)
+{
+ const void **tmpdata;
+ int num_alloc;
+
+ /* Check to see the reservation isn't exceeding the hard limit */
+ if (n > max_nodes - st->num)
+ return 0;
+
+ /* Figure out the new size */
+ num_alloc = st->num + n;
+ if (num_alloc < min_nodes)
+ num_alloc = min_nodes;
+
+ /* If |st->data| allocation was postponed */
+ if (st->data == NULL) {
+ /*
+ * At this point, |st->num_alloc| and |st->num| are 0;
+ * so |num_alloc| value is |n| or |min_nodes| if greater than |n|.
+ */
+ if ((st->data = OPENSSL_zalloc(sizeof(void *) * num_alloc)) == NULL) {
+ CRYPTOerr(CRYPTO_F_SK_RESERVE, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ st->num_alloc = num_alloc;
+ return 1;
+ }
+
+ if (!exact) {
+ if (num_alloc <= st->num_alloc)
+ return 1;
+ num_alloc = compute_growth(num_alloc, st->num_alloc);
+ if (num_alloc == 0)
+ return 0;
+ } else if (num_alloc == st->num_alloc) {
+ return 1;
+ }
+
+ tmpdata = OPENSSL_realloc((void *)st->data, sizeof(void *) * num_alloc);
+ if (tmpdata == NULL)
+ return 0;
+
+ st->data = tmpdata;
+ st->num_alloc = num_alloc;
+ return 1;
+}
+
+OPENSSL_STACK *OPENSSL_sk_new_reserve(OPENSSL_sk_compfunc c, int n)
+{
+ OPENSSL_STACK *st = OPENSSL_zalloc(sizeof(OPENSSL_STACK));
+
+ if (st == NULL)
+ return NULL;
+
+ st->comp = c;
+
+ if (n <= 0)
+ return st;
+
+ if (!sk_reserve(st, n, 1)) {
+ OPENSSL_sk_free(st);
+ return NULL;
+ }
+
+ return st;
+}
+
+int OPENSSL_sk_reserve(OPENSSL_STACK *st, int n)
+{
+ if (st == NULL)
+ return 0;
+
+ if (n < 0)
+ return 1;
+ return sk_reserve(st, n, 1);
+}
+
+int OPENSSL_sk_insert(OPENSSL_STACK *st, const void *data, int loc)
+{
+ if (st == NULL || st->num == max_nodes)
+ return 0;
+
+ if (!sk_reserve(st, 1, 0))
+ return 0;
+
+ if ((loc >= st->num) || (loc < 0)) {
+ st->data[st->num] = data;
+ } else {
+ memmove(&st->data[loc + 1], &st->data[loc],
+ sizeof(st->data[0]) * (st->num - loc));
+ st->data[loc] = data;
+ }
+ st->num++;
+ st->sorted = 0;
+ return st->num;
+}
+
+static ossl_inline void *internal_delete(OPENSSL_STACK *st, int loc)
+{
+ const void *ret = st->data[loc];
+
+ if (loc != st->num - 1)
+ memmove(&st->data[loc], &st->data[loc + 1],
+ sizeof(st->data[0]) * (st->num - loc - 1));
+ st->num--;
+
+ return (void *)ret;
+}
+
+void *OPENSSL_sk_delete_ptr(OPENSSL_STACK *st, const void *p)
+{
+ int i;
+
+ for (i = 0; i < st->num; i++)
+ if (st->data[i] == p)
+ return internal_delete(st, i);
+ return NULL;
+}
+
+void *OPENSSL_sk_delete(OPENSSL_STACK *st, int loc)
+{
+ if (st == NULL || loc < 0 || loc >= st->num)
+ return NULL;
+
+ return internal_delete(st, loc);
+}
+
+static int internal_find(OPENSSL_STACK *st, const void *data,
+ int ret_val_options)
+{
+ const void *r;
+ int i;
+
+ if (st == NULL || st->num == 0)
+ return -1;
+
+ if (st->comp == NULL) {
+ for (i = 0; i < st->num; i++)
+ if (st->data[i] == data)
+ return i;
+ return -1;
+ }
+
+ if (!st->sorted) {
+ if (st->num > 1)
+ qsort(st->data, st->num, sizeof(void *), st->comp);
+ st->sorted = 1; /* empty or single-element stack is considered sorted */
+ }
+ if (data == NULL)
+ return -1;
+ r = OBJ_bsearch_ex_(&data, st->data, st->num, sizeof(void *), st->comp,
+ ret_val_options);
+
+ return r == NULL ? -1 : (int)((const void **)r - st->data);
+}
+
+int OPENSSL_sk_find(OPENSSL_STACK *st, const void *data)
+{
+ return internal_find(st, data, OBJ_BSEARCH_FIRST_VALUE_ON_MATCH);
+}
+
+int OPENSSL_sk_find_ex(OPENSSL_STACK *st, const void *data)
+{
+ return internal_find(st, data, OBJ_BSEARCH_VALUE_ON_NOMATCH);
+}
+
+int OPENSSL_sk_push(OPENSSL_STACK *st, const void *data)
+{
+ if (st == NULL)
+ return -1;
+ return OPENSSL_sk_insert(st, data, st->num);
+}
+
+int OPENSSL_sk_unshift(OPENSSL_STACK *st, const void *data)
+{
+ return OPENSSL_sk_insert(st, data, 0);
+}
+
+void *OPENSSL_sk_shift(OPENSSL_STACK *st)
+{
+ if (st == NULL || st->num == 0)
+ return NULL;
+ return internal_delete(st, 0);
+}
+
+void *OPENSSL_sk_pop(OPENSSL_STACK *st)
+{
+ if (st == NULL || st->num == 0)
+ return NULL;
+ return internal_delete(st, st->num - 1);
+}
+
+void OPENSSL_sk_zero(OPENSSL_STACK *st)
+{
+ if (st == NULL || st->num == 0)
+ return;
+ memset(st->data, 0, sizeof(*st->data) * st->num);
+ st->num = 0;
+}
+
+void OPENSSL_sk_pop_free(OPENSSL_STACK *st, OPENSSL_sk_freefunc func)
+{
+ int i;
+
+ if (st == NULL)
+ return;
+ for (i = 0; i < st->num; i++)
+ if (st->data[i] != NULL)
+ func((char *)st->data[i]);
+ OPENSSL_sk_free(st);
+}
+
+void OPENSSL_sk_free(OPENSSL_STACK *st)
+{
+ if (st == NULL)
+ return;
+ OPENSSL_free(st->data);
+ OPENSSL_free(st);
+}
+
+int OPENSSL_sk_num(const OPENSSL_STACK *st)
+{
+ return st == NULL ? -1 : st->num;
+}
+
+void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
+{
+ if (st == NULL || i < 0 || i >= st->num)
+ return NULL;
+ return (void *)st->data[i];
+}
+
+void *OPENSSL_sk_set(OPENSSL_STACK *st, int i, const void *data)
+{
+ if (st == NULL || i < 0 || i >= st->num)
+ return NULL;
+ st->data[i] = data;
+ st->sorted = 0;
+ return (void *)st->data[i];
+}
+
+void OPENSSL_sk_sort(OPENSSL_STACK *st)
+{
+ if (st != NULL && !st->sorted && st->comp != NULL) {
+ if (st->num > 1)
+ qsort(st->data, st->num, sizeof(void *), st->comp);
+ st->sorted = 1; /* empty or single-element stack is considered sorted */
+ }
+}
+
+int OPENSSL_sk_is_sorted(const OPENSSL_STACK *st)
+{
+ return st == NULL ? 1 : st->sorted;
+}