Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 390 insertions, 0 deletions

diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/x509/by_dir.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/x509/by_dir.c
new file mode 100644
index 000000000..238c2519a
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/x509/by_dir.c
@@ -0,0 +1,390 @@
+/*
+ * Copyright 1995-2019 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 "e_os.h"
+#include "internal/cryptlib.h"
+#include <stdio.h>
+#include <time.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#ifndef OPENSSL_NO_POSIX_IO
+# include <sys/stat.h>
+#endif
+
+#include <openssl/x509.h>
+#include "crypto/x509.h"
+#include "x509_local.h"
+
+struct lookup_dir_hashes_st {
+    unsigned long hash;
+    int suffix;
+};
+
+struct lookup_dir_entry_st {
+    char *dir;
+    int dir_type;
+    STACK_OF(BY_DIR_HASH) *hashes;
+};
+
+typedef struct lookup_dir_st {
+    BUF_MEM *buffer;
+    STACK_OF(BY_DIR_ENTRY) *dirs;
+    CRYPTO_RWLOCK *lock;
+} BY_DIR;
+
+static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
+                    char **ret);
+static int new_dir(X509_LOOKUP *lu);
+static void free_dir(X509_LOOKUP *lu);
+static int add_cert_dir(BY_DIR *ctx, const char *dir, int type);
+static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
+                               X509_NAME *name, X509_OBJECT *ret);
+static X509_LOOKUP_METHOD x509_dir_lookup = {
+    "Load certs from files in a directory",
+    new_dir,                    /* new_item */
+    free_dir,                   /* free */
+    NULL,                       /* init */
+    NULL,                       /* shutdown */
+    dir_ctrl,                   /* ctrl */
+    get_cert_by_subject,        /* get_by_subject */
+    NULL,                       /* get_by_issuer_serial */
+    NULL,                       /* get_by_fingerprint */
+    NULL,                       /* get_by_alias */
+};
+
+X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
+{
+    return &x509_dir_lookup;
+}
+
+static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
+                    char **retp)
+{
+    int ret = 0;
+    BY_DIR *ld = (BY_DIR *)ctx->method_data;
+
+    switch (cmd) {
+    case X509_L_ADD_DIR:
+        if (argl == X509_FILETYPE_DEFAULT) {
+            const char *dir = ossl_safe_getenv(X509_get_default_cert_dir_env());
+
+            if (dir)
+                ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM);
+            else
+                ret = add_cert_dir(ld, X509_get_default_cert_dir(),
+                                   X509_FILETYPE_PEM);
+            if (!ret) {
+                X509err(X509_F_DIR_CTRL, X509_R_LOADING_CERT_DIR);
+            }
+        } else
+            ret = add_cert_dir(ld, argp, (int)argl);
+        break;
+    }
+    return ret;
+}
+
+static int new_dir(X509_LOOKUP *lu)
+{
+    BY_DIR *a = OPENSSL_malloc(sizeof(*a));
+
+    if (a == NULL) {
+        X509err(X509_F_NEW_DIR, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+
+    if ((a->buffer = BUF_MEM_new()) == NULL) {
+        X509err(X509_F_NEW_DIR, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    a->dirs = NULL;
+    a->lock = CRYPTO_THREAD_lock_new();
+    if (a->lock == NULL) {
+        BUF_MEM_free(a->buffer);
+        X509err(X509_F_NEW_DIR, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    lu->method_data = a;
+    return 1;
+
+ err:
+    OPENSSL_free(a);
+    return 0;
+}
+
+static void by_dir_hash_free(BY_DIR_HASH *hash)
+{
+    OPENSSL_free(hash);
+}
+
+static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
+                           const BY_DIR_HASH *const *b)
+{
+    if ((*a)->hash > (*b)->hash)
+        return 1;
+    if ((*a)->hash < (*b)->hash)
+        return -1;
+    return 0;
+}
+
+static void by_dir_entry_free(BY_DIR_ENTRY *ent)
+{
+    OPENSSL_free(ent->dir);
+    sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
+    OPENSSL_free(ent);
+}
+
+static void free_dir(X509_LOOKUP *lu)
+{
+    BY_DIR *a = (BY_DIR *)lu->method_data;
+
+    sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
+    BUF_MEM_free(a->buffer);
+    CRYPTO_THREAD_lock_free(a->lock);
+    OPENSSL_free(a);
+}
+
+static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
+{
+    int j;
+    size_t len;
+    const char *s, *ss, *p;
+
+    if (dir == NULL || !*dir) {
+        X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);
+        return 0;
+    }
+
+    s = dir;
+    p = s;
+    do {
+        if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
+            BY_DIR_ENTRY *ent;
+
+            ss = s;
+            s = p + 1;
+            len = p - ss;
+            if (len == 0)
+                continue;
+            for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
+                ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
+                if (strlen(ent->dir) == len && strncmp(ent->dir, ss, len) == 0)
+                    break;
+            }
+            if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
+                continue;
+            if (ctx->dirs == NULL) {
+                ctx->dirs = sk_BY_DIR_ENTRY_new_null();
+                if (!ctx->dirs) {
+                    X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
+                    return 0;
+                }
+            }
+            ent = OPENSSL_malloc(sizeof(*ent));
+            if (ent == NULL) {
+                X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
+                return 0;
+            }
+            ent->dir_type = type;
+            ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
+            ent->dir = OPENSSL_strndup(ss, len);
+            if (ent->dir == NULL || ent->hashes == NULL) {
+                by_dir_entry_free(ent);
+                return 0;
+            }
+            if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
+                by_dir_entry_free(ent);
+                X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
+                return 0;
+            }
+        }
+    } while (*p++ != '\0');
+    return 1;
+}
+
+static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
+                               X509_NAME *name, X509_OBJECT *ret)
+{
+    BY_DIR *ctx;
+    union {
+        X509 st_x509;
+        X509_CRL crl;
+    } data;
+    int ok = 0;
+    int i, j, k;
+    unsigned long h;
+    BUF_MEM *b = NULL;
+    X509_OBJECT stmp, *tmp;
+    const char *postfix = "";
+
+    if (name == NULL)
+        return 0;
+
+    stmp.type = type;
+    if (type == X509_LU_X509) {
+        data.st_x509.cert_info.subject = name;
+        stmp.data.x509 = &data.st_x509;
+        postfix = "";
+    } else if (type == X509_LU_CRL) {
+        data.crl.crl.issuer = name;
+        stmp.data.crl = &data.crl;
+        postfix = "r";
+    } else {
+        X509err(X509_F_GET_CERT_BY_SUBJECT, X509_R_WRONG_LOOKUP_TYPE);
+        goto finish;
+    }
+
+    if ((b = BUF_MEM_new()) == NULL) {
+        X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_BUF_LIB);
+        goto finish;
+    }
+
+    ctx = (BY_DIR *)xl->method_data;
+
+    h = X509_NAME_hash(name);
+    for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
+        BY_DIR_ENTRY *ent;
+        int idx;
+        BY_DIR_HASH htmp, *hent;
+
+        ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
+        j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
+        if (!BUF_MEM_grow(b, j)) {
+            X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
+            goto finish;
+        }
+        if (type == X509_LU_CRL && ent->hashes) {
+            htmp.hash = h;
+            CRYPTO_THREAD_read_lock(ctx->lock);
+            idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
+            if (idx >= 0) {
+                hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
+                k = hent->suffix;
+            } else {
+                hent = NULL;
+                k = 0;
+            }
+            CRYPTO_THREAD_unlock(ctx->lock);
+        } else {
+            k = 0;
+            hent = NULL;
+        }
+        for (;;) {
+            char c = '/';
+#ifdef OPENSSL_SYS_VMS
+            c = ent->dir[strlen(ent->dir) - 1];
+            if (c != ':' && c != '>' && c != ']') {
+                /*
+                 * If no separator is present, we assume the directory
+                 * specifier is a logical name, and add a colon.  We really
+                 * should use better VMS routines for merging things like
+                 * this, but this will do for now... -- Richard Levitte
+                 */
+                c = ':';
+            } else {
+                c = '\0';
+            }
+#endif
+            if (c == '\0') {
+                /*
+                 * This is special.  When c == '\0', no directory separator
+                 * should be added.
+                 */
+                BIO_snprintf(b->data, b->max,
+                             "%s%08lx.%s%d", ent->dir, h, postfix, k);
+            } else {
+                BIO_snprintf(b->data, b->max,
+                             "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
+            }
+#ifndef OPENSSL_NO_POSIX_IO
+# ifdef _WIN32
+#  define stat _stat
+# endif
+            {
+                struct stat st;
+                if (stat(b->data, &st) < 0)
+                    break;
+            }
+#endif
+            /* found one. */
+            if (type == X509_LU_X509) {
+                if ((X509_load_cert_file(xl, b->data, ent->dir_type)) == 0)
+                    break;
+            } else if (type == X509_LU_CRL) {
+                if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
+                    break;
+            }
+            /* else case will caught higher up */
+            k++;
+        }
+
+        /*
+         * we have added it to the cache so now pull it out again
+         */
+        X509_STORE_lock(xl->store_ctx);
+        j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
+        tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
+        X509_STORE_unlock(xl->store_ctx);
+
+        /* If a CRL, update the last file suffix added for this */
+
+        if (type == X509_LU_CRL) {
+            CRYPTO_THREAD_write_lock(ctx->lock);
+            /*
+             * Look for entry again in case another thread added an entry
+             * first.
+             */
+            if (hent == NULL) {
+                htmp.hash = h;
+                idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
+                hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
+            }
+            if (hent == NULL) {
+                hent = OPENSSL_malloc(sizeof(*hent));
+                if (hent == NULL) {
+                    CRYPTO_THREAD_unlock(ctx->lock);
+                    X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
+                    ok = 0;
+                    goto finish;
+                }
+                hent->hash = h;
+                hent->suffix = k;
+                if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
+                    CRYPTO_THREAD_unlock(ctx->lock);
+                    OPENSSL_free(hent);
+                    X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
+                    ok = 0;
+                    goto finish;
+                }
+            } else if (hent->suffix < k) {
+                hent->suffix = k;
+            }
+
+            CRYPTO_THREAD_unlock(ctx->lock);
+
+        }
+
+        if (tmp != NULL) {
+            ok = 1;
+            ret->type = tmp->type;
+            memcpy(&ret->data, &tmp->data, sizeof(ret->data));
+
+            /*
+             * Clear any errors that might have been raised processing empty
+             * or malformed files.
+             */
+            ERR_clear_error();
+
+            goto finish;
+        }
+    }
+ finish:
+    BUF_MEM_free(b);
+    return ok;
+}