zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/ssl/bio_ssl.c b/ap/lib/libssl/openssl-1.1.1o/ssl/bio_ssl.c
new file mode 100644
index 0000000..67097d5
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/ssl/bio_ssl.c
@@ -0,0 +1,506 @@
+/*
+ * Copyright 1995-2021 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 <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <openssl/crypto.h>
+#include "internal/bio.h"
+#include <openssl/err.h>
+#include "ssl_local.h"
+
+static int ssl_write(BIO *h, const char *buf, size_t size, size_t *written);
+static int ssl_read(BIO *b, char *buf, size_t size, size_t *readbytes);
+static int ssl_puts(BIO *h, const char *str);
+static long ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int ssl_new(BIO *h);
+static int ssl_free(BIO *data);
+static long ssl_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fp);
+typedef struct bio_ssl_st {
+    SSL *ssl;                   /* The ssl handle :-) */
+    /* re-negotiate every time the total number of bytes is this size */
+    int num_renegotiates;
+    unsigned long renegotiate_count;
+    size_t byte_count;
+    unsigned long renegotiate_timeout;
+    unsigned long last_time;
+} BIO_SSL;
+
+static const BIO_METHOD methods_sslp = {
+    BIO_TYPE_SSL,
+    "ssl",
+    ssl_write,
+    NULL,                       /* ssl_write_old, */
+    ssl_read,
+    NULL,                       /* ssl_read_old,  */
+    ssl_puts,
+    NULL,                       /* ssl_gets,      */
+    ssl_ctrl,
+    ssl_new,
+    ssl_free,
+    ssl_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_f_ssl(void)
+{
+    return &methods_sslp;
+}
+
+static int ssl_new(BIO *bi)
+{
+    BIO_SSL *bs = OPENSSL_zalloc(sizeof(*bs));
+
+    if (bs == NULL) {
+        BIOerr(BIO_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+    BIO_set_init(bi, 0);
+    BIO_set_data(bi, bs);
+    /* Clear all flags */
+    BIO_clear_flags(bi, ~0);
+
+    return 1;
+}
+
+static int ssl_free(BIO *a)
+{
+    BIO_SSL *bs;
+
+    if (a == NULL)
+        return 0;
+    bs = BIO_get_data(a);
+    if (BIO_get_shutdown(a)) {
+        if (bs->ssl != NULL)
+            SSL_shutdown(bs->ssl);
+        if (BIO_get_init(a))
+            SSL_free(bs->ssl);
+        BIO_clear_flags(a, ~0); /* Clear all flags */
+        BIO_set_init(a, 0);
+    }
+    OPENSSL_free(bs);
+    return 1;
+}
+
+static int ssl_read(BIO *b, char *buf, size_t size, size_t *readbytes)
+{
+    int ret = 1;
+    BIO_SSL *sb;
+    SSL *ssl;
+    int retry_reason = 0;
+    int r = 0;
+
+    if (buf == NULL)
+        return 0;
+    sb = BIO_get_data(b);
+    ssl = sb->ssl;
+
+    BIO_clear_retry_flags(b);
+
+    ret = ssl_read_internal(ssl, buf, size, readbytes);
+
+    switch (SSL_get_error(ssl, ret)) {
+    case SSL_ERROR_NONE:
+        if (sb->renegotiate_count > 0) {
+            sb->byte_count += *readbytes;
+            if (sb->byte_count > sb->renegotiate_count) {
+                sb->byte_count = 0;
+                sb->num_renegotiates++;
+                SSL_renegotiate(ssl);
+                r = 1;
+            }
+        }
+        if ((sb->renegotiate_timeout > 0) && (!r)) {
+            unsigned long tm;
+
+            tm = (unsigned long)time(NULL);
+            if (tm > sb->last_time + sb->renegotiate_timeout) {
+                sb->last_time = tm;
+                sb->num_renegotiates++;
+                SSL_renegotiate(ssl);
+            }
+        }
+
+        break;
+    case SSL_ERROR_WANT_READ:
+        BIO_set_retry_read(b);
+        break;
+    case SSL_ERROR_WANT_WRITE:
+        BIO_set_retry_write(b);
+        break;
+    case SSL_ERROR_WANT_X509_LOOKUP:
+        BIO_set_retry_special(b);
+        retry_reason = BIO_RR_SSL_X509_LOOKUP;
+        break;
+    case SSL_ERROR_WANT_ACCEPT:
+        BIO_set_retry_special(b);
+        retry_reason = BIO_RR_ACCEPT;
+        break;
+    case SSL_ERROR_WANT_CONNECT:
+        BIO_set_retry_special(b);
+        retry_reason = BIO_RR_CONNECT;
+        break;
+    case SSL_ERROR_SYSCALL:
+    case SSL_ERROR_SSL:
+    case SSL_ERROR_ZERO_RETURN:
+    default:
+        break;
+    }
+
+    BIO_set_retry_reason(b, retry_reason);
+
+    return ret;
+}
+
+static int ssl_write(BIO *b, const char *buf, size_t size, size_t *written)
+{
+    int ret, r = 0;
+    int retry_reason = 0;
+    SSL *ssl;
+    BIO_SSL *bs;
+
+    if (buf == NULL)
+        return 0;
+    bs = BIO_get_data(b);
+    ssl = bs->ssl;
+
+    BIO_clear_retry_flags(b);
+
+    ret = ssl_write_internal(ssl, buf, size, written);
+
+    switch (SSL_get_error(ssl, ret)) {
+    case SSL_ERROR_NONE:
+        if (bs->renegotiate_count > 0) {
+            bs->byte_count += *written;
+            if (bs->byte_count > bs->renegotiate_count) {
+                bs->byte_count = 0;
+                bs->num_renegotiates++;
+                SSL_renegotiate(ssl);
+                r = 1;
+            }
+        }
+        if ((bs->renegotiate_timeout > 0) && (!r)) {
+            unsigned long tm;
+
+            tm = (unsigned long)time(NULL);
+            if (tm > bs->last_time + bs->renegotiate_timeout) {
+                bs->last_time = tm;
+                bs->num_renegotiates++;
+                SSL_renegotiate(ssl);
+            }
+        }
+        break;
+    case SSL_ERROR_WANT_WRITE:
+        BIO_set_retry_write(b);
+        break;
+    case SSL_ERROR_WANT_READ:
+        BIO_set_retry_read(b);
+        break;
+    case SSL_ERROR_WANT_X509_LOOKUP:
+        BIO_set_retry_special(b);
+        retry_reason = BIO_RR_SSL_X509_LOOKUP;
+        break;
+    case SSL_ERROR_WANT_CONNECT:
+        BIO_set_retry_special(b);
+        retry_reason = BIO_RR_CONNECT;
+    case SSL_ERROR_SYSCALL:
+    case SSL_ERROR_SSL:
+    default:
+        break;
+    }
+
+    BIO_set_retry_reason(b, retry_reason);
+
+    return ret;
+}
+
+static long ssl_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+    SSL **sslp, *ssl;
+    BIO_SSL *bs, *dbs;
+    BIO *dbio, *bio;
+    long ret = 1;
+    BIO *next;
+
+    bs = BIO_get_data(b);
+    next = BIO_next(b);
+    ssl = bs->ssl;
+    if ((ssl == NULL) && (cmd != BIO_C_SET_SSL))
+        return 0;
+    switch (cmd) {
+    case BIO_CTRL_RESET:
+        SSL_shutdown(ssl);
+
+        if (ssl->handshake_func == ssl->method->ssl_connect)
+            SSL_set_connect_state(ssl);
+        else if (ssl->handshake_func == ssl->method->ssl_accept)
+            SSL_set_accept_state(ssl);
+
+        if (!SSL_clear(ssl)) {
+            ret = 0;
+            break;
+        }
+
+        if (next != NULL)
+            ret = BIO_ctrl(next, cmd, num, ptr);
+        else if (ssl->rbio != NULL)
+            ret = BIO_ctrl(ssl->rbio, cmd, num, ptr);
+        else
+            ret = 1;
+        break;
+    case BIO_CTRL_INFO:
+        ret = 0;
+        break;
+    case BIO_C_SSL_MODE:
+        if (num)                /* client mode */
+            SSL_set_connect_state(ssl);
+        else
+            SSL_set_accept_state(ssl);
+        break;
+    case BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT:
+        ret = bs->renegotiate_timeout;
+        if (num < 60)
+            num = 5;
+        bs->renegotiate_timeout = (unsigned long)num;
+        bs->last_time = (unsigned long)time(NULL);
+        break;
+    case BIO_C_SET_SSL_RENEGOTIATE_BYTES:
+        ret = bs->renegotiate_count;
+        if ((long)num >= 512)
+            bs->renegotiate_count = (unsigned long)num;
+        break;
+    case BIO_C_GET_SSL_NUM_RENEGOTIATES:
+        ret = bs->num_renegotiates;
+        break;
+    case BIO_C_SET_SSL:
+        if (ssl != NULL) {
+            ssl_free(b);
+            if (!ssl_new(b))
+                return 0;
+            bs = BIO_get_data(b);
+        }
+        BIO_set_shutdown(b, num);
+        ssl = (SSL *)ptr;
+        bs->ssl = ssl;
+        bio = SSL_get_rbio(ssl);
+        if (bio != NULL) {
+            if (next != NULL)
+                BIO_push(bio, next);
+            BIO_set_next(b, bio);
+            BIO_up_ref(bio);
+        }
+        BIO_set_init(b, 1);
+        break;
+    case BIO_C_GET_SSL:
+        if (ptr != NULL) {
+            sslp = (SSL **)ptr;
+            *sslp = ssl;
+        } else
+            ret = 0;
+        break;
+    case BIO_CTRL_GET_CLOSE:
+        ret = BIO_get_shutdown(b);
+        break;
+    case BIO_CTRL_SET_CLOSE:
+        BIO_set_shutdown(b, (int)num);
+        break;
+    case BIO_CTRL_WPENDING:
+        ret = BIO_ctrl(ssl->wbio, cmd, num, ptr);
+        break;
+    case BIO_CTRL_PENDING:
+        ret = SSL_pending(ssl);
+        if (ret == 0)
+            ret = BIO_pending(ssl->rbio);
+        break;
+    case BIO_CTRL_FLUSH:
+        BIO_clear_retry_flags(b);
+        ret = BIO_ctrl(ssl->wbio, cmd, num, ptr);
+        BIO_copy_next_retry(b);
+        break;
+    case BIO_CTRL_PUSH:
+        if ((next != NULL) && (next != ssl->rbio)) {
+            /*
+             * We are going to pass ownership of next to the SSL object...but
+             * we don't own a reference to pass yet - so up ref
+             */
+            BIO_up_ref(next);
+            SSL_set_bio(ssl, next, next);
+        }
+        break;
+    case BIO_CTRL_POP:
+        /* Only detach if we are the BIO explicitly being popped */
+        if (b == ptr) {
+            /* This will clear the reference we obtained during push */
+            SSL_set_bio(ssl, NULL, NULL);
+        }
+        break;
+    case BIO_C_DO_STATE_MACHINE:
+        BIO_clear_retry_flags(b);
+
+        BIO_set_retry_reason(b, 0);
+        ret = (int)SSL_do_handshake(ssl);
+
+        switch (SSL_get_error(ssl, (int)ret)) {
+        case SSL_ERROR_WANT_READ:
+            BIO_set_flags(b, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY);
+            break;
+        case SSL_ERROR_WANT_WRITE:
+            BIO_set_flags(b, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY);
+            break;
+        case SSL_ERROR_WANT_CONNECT:
+            BIO_set_flags(b, BIO_FLAGS_IO_SPECIAL | BIO_FLAGS_SHOULD_RETRY);
+            BIO_set_retry_reason(b, BIO_get_retry_reason(next));
+            break;
+        case SSL_ERROR_WANT_X509_LOOKUP:
+            BIO_set_retry_special(b);
+            BIO_set_retry_reason(b, BIO_RR_SSL_X509_LOOKUP);
+            break;
+        default:
+            break;
+        }
+        break;
+    case BIO_CTRL_DUP:
+        dbio = (BIO *)ptr;
+        dbs = BIO_get_data(dbio);
+        SSL_free(dbs->ssl);
+        dbs->ssl = SSL_dup(ssl);
+        dbs->num_renegotiates = bs->num_renegotiates;
+        dbs->renegotiate_count = bs->renegotiate_count;
+        dbs->byte_count = bs->byte_count;
+        dbs->renegotiate_timeout = bs->renegotiate_timeout;
+        dbs->last_time = bs->last_time;
+        ret = (dbs->ssl != NULL);
+        break;
+    case BIO_C_GET_FD:
+        ret = BIO_ctrl(ssl->rbio, cmd, num, ptr);
+        break;
+    case BIO_CTRL_SET_CALLBACK:
+        ret = 0; /* use callback ctrl */
+        break;
+    default:
+        ret = BIO_ctrl(ssl->rbio, cmd, num, ptr);
+        break;
+    }
+    return ret;
+}
+
+static long ssl_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)
+{
+    SSL *ssl;
+    BIO_SSL *bs;
+    long ret = 1;
+
+    bs = BIO_get_data(b);
+    ssl = bs->ssl;
+    switch (cmd) {
+    case BIO_CTRL_SET_CALLBACK:
+        ret = BIO_callback_ctrl(ssl->rbio, cmd, fp);
+        break;
+    default:
+        ret = 0;
+        break;
+    }
+    return ret;
+}
+
+static int ssl_puts(BIO *bp, const char *str)
+{
+    int n, ret;
+
+    n = strlen(str);
+    ret = BIO_write(bp, str, n);
+    return ret;
+}
+
+BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx)
+{
+#ifndef OPENSSL_NO_SOCK
+    BIO *ret = NULL, *buf = NULL, *ssl = NULL;
+
+    if ((buf = BIO_new(BIO_f_buffer())) == NULL)
+        return NULL;
+    if ((ssl = BIO_new_ssl_connect(ctx)) == NULL)
+        goto err;
+    if ((ret = BIO_push(buf, ssl)) == NULL)
+        goto err;
+    return ret;
+ err:
+    BIO_free(buf);
+    BIO_free(ssl);
+#endif
+    return NULL;
+}
+
+BIO *BIO_new_ssl_connect(SSL_CTX *ctx)
+{
+#ifndef OPENSSL_NO_SOCK
+    BIO *ret = NULL, *con = NULL, *ssl = NULL;
+
+    if ((con = BIO_new(BIO_s_connect())) == NULL)
+        return NULL;
+    if ((ssl = BIO_new_ssl(ctx, 1)) == NULL)
+        goto err;
+    if ((ret = BIO_push(ssl, con)) == NULL)
+        goto err;
+    return ret;
+ err:
+    BIO_free(ssl);
+    BIO_free(con);
+#endif
+    return NULL;
+}
+
+BIO *BIO_new_ssl(SSL_CTX *ctx, int client)
+{
+    BIO *ret;
+    SSL *ssl;
+
+    if ((ret = BIO_new(BIO_f_ssl())) == NULL)
+        return NULL;
+    if ((ssl = SSL_new(ctx)) == NULL) {
+        BIO_free(ret);
+        return NULL;
+    }
+    if (client)
+        SSL_set_connect_state(ssl);
+    else
+        SSL_set_accept_state(ssl);
+
+    BIO_set_ssl(ret, ssl, BIO_CLOSE);
+    return ret;
+}
+
+int BIO_ssl_copy_session_id(BIO *t, BIO *f)
+{
+    BIO_SSL *tdata, *fdata;
+    t = BIO_find_type(t, BIO_TYPE_SSL);
+    f = BIO_find_type(f, BIO_TYPE_SSL);
+    if ((t == NULL) || (f == NULL))
+        return 0;
+    tdata = BIO_get_data(t);
+    fdata = BIO_get_data(f);
+    if ((tdata->ssl == NULL) || (fdata->ssl == NULL))
+        return 0;
+    if (!SSL_copy_session_id(tdata->ssl, (fdata->ssl)))
+        return 0;
+    return 1;
+}
+
+void BIO_ssl_shutdown(BIO *b)
+{
+    BIO_SSL *bdata;
+
+    for (; b != NULL; b = BIO_next(b)) {
+        if (BIO_method_type(b) != BIO_TYPE_SSL)
+            continue;
+        bdata = BIO_get_data(b);
+        if (bdata != NULL && bdata->ssl != NULL)
+            SSL_shutdown(bdata->ssl);
+    }
+}