zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/evp/bio_enc.c b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/bio_enc.c
new file mode 100644
index 0000000..6639061
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/bio_enc.c
@@ -0,0 +1,429 @@
+/*
+ * 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 <errno.h>
+#include "internal/cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+#include "internal/bio.h"
+
+static int enc_write(BIO *h, const char *buf, int num);
+static int enc_read(BIO *h, char *buf, int size);
+static long enc_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int enc_new(BIO *h);
+static int enc_free(BIO *data);
+static long enc_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fps);
+#define ENC_BLOCK_SIZE (1024*4)
+#define ENC_MIN_CHUNK (256)
+#define BUF_OFFSET (ENC_MIN_CHUNK + EVP_MAX_BLOCK_LENGTH)
+
+typedef struct enc_struct {
+ int buf_len;
+ int buf_off;
+ int cont; /* <= 0 when finished */
+ int finished;
+ int ok; /* bad decrypt */
+ EVP_CIPHER_CTX *cipher;
+ unsigned char *read_start, *read_end;
+ /*
+ * buf is larger than ENC_BLOCK_SIZE because EVP_DecryptUpdate can return
+ * up to a block more data than is presented to it
+ */
+ unsigned char buf[BUF_OFFSET + ENC_BLOCK_SIZE];
+} BIO_ENC_CTX;
+
+static const BIO_METHOD methods_enc = {
+ BIO_TYPE_CIPHER,
+ "cipher",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
+ enc_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
+ enc_read,
+ NULL, /* enc_puts, */
+ NULL, /* enc_gets, */
+ enc_ctrl,
+ enc_new,
+ enc_free,
+ enc_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_f_cipher(void)
+{
+ return &methods_enc;
+}
+
+static int enc_new(BIO *bi)
+{
+ BIO_ENC_CTX *ctx;
+
+ if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
+ EVPerr(EVP_F_ENC_NEW, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ ctx->cipher = EVP_CIPHER_CTX_new();
+ if (ctx->cipher == NULL) {
+ OPENSSL_free(ctx);
+ return 0;
+ }
+ ctx->cont = 1;
+ ctx->ok = 1;
+ ctx->read_end = ctx->read_start = &(ctx->buf[BUF_OFFSET]);
+ BIO_set_data(bi, ctx);
+ BIO_set_init(bi, 1);
+
+ return 1;
+}
+
+static int enc_free(BIO *a)
+{
+ BIO_ENC_CTX *b;
+
+ if (a == NULL)
+ return 0;
+
+ b = BIO_get_data(a);
+ if (b == NULL)
+ return 0;
+
+ EVP_CIPHER_CTX_free(b->cipher);
+ OPENSSL_clear_free(b, sizeof(BIO_ENC_CTX));
+ BIO_set_data(a, NULL);
+ BIO_set_init(a, 0);
+
+ return 1;
+}
+
+static int enc_read(BIO *b, char *out, int outl)
+{
+ int ret = 0, i, blocksize;
+ BIO_ENC_CTX *ctx;
+ BIO *next;
+
+ if (out == NULL)
+ return 0;
+ ctx = BIO_get_data(b);
+
+ next = BIO_next(b);
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
+
+ /* First check if there are bytes decoded/encoded */
+ if (ctx->buf_len > 0) {
+ i = ctx->buf_len - ctx->buf_off;
+ if (i > outl)
+ i = outl;
+ memcpy(out, &(ctx->buf[ctx->buf_off]), i);
+ ret = i;
+ out += i;
+ outl -= i;
+ ctx->buf_off += i;
+ if (ctx->buf_len == ctx->buf_off) {
+ ctx->buf_len = 0;
+ ctx->buf_off = 0;
+ }
+ }
+
+ blocksize = EVP_CIPHER_CTX_block_size(ctx->cipher);
+ if (blocksize == 1)
+ blocksize = 0;
+
+ /*
+ * At this point, we have room of outl bytes and an empty buffer, so we
+ * should read in some more.
+ */
+
+ while (outl > 0) {
+ if (ctx->cont <= 0)
+ break;
+
+ if (ctx->read_start == ctx->read_end) { /* time to read more data */
+ ctx->read_end = ctx->read_start = &(ctx->buf[BUF_OFFSET]);
+ i = BIO_read(next, ctx->read_start, ENC_BLOCK_SIZE);
+ if (i > 0)
+ ctx->read_end += i;
+ } else {
+ i = ctx->read_end - ctx->read_start;
+ }
+
+ if (i <= 0) {
+ /* Should be continue next time we are called? */
+ if (!BIO_should_retry(next)) {
+ ctx->cont = i;
+ i = EVP_CipherFinal_ex(ctx->cipher,
+ ctx->buf, &(ctx->buf_len));
+ ctx->ok = i;
+ ctx->buf_off = 0;
+ } else {
+ ret = (ret == 0) ? i : ret;
+ break;
+ }
+ } else {
+ if (outl > ENC_MIN_CHUNK) {
+ /*
+ * Depending on flags block cipher decrypt can write
+ * one extra block and then back off, i.e. output buffer
+ * has to accommodate extra block...
+ */
+ int j = outl - blocksize, buf_len;
+
+ if (!EVP_CipherUpdate(ctx->cipher,
+ (unsigned char *)out, &buf_len,
+ ctx->read_start, i > j ? j : i)) {
+ BIO_clear_retry_flags(b);
+ return 0;
+ }
+ ret += buf_len;
+ out += buf_len;
+ outl -= buf_len;
+
+ if ((i -= j) <= 0) {
+ ctx->read_start = ctx->read_end;
+ continue;
+ }
+ ctx->read_start += j;
+ }
+ if (i > ENC_MIN_CHUNK)
+ i = ENC_MIN_CHUNK;
+ if (!EVP_CipherUpdate(ctx->cipher,
+ ctx->buf, &ctx->buf_len,
+ ctx->read_start, i)) {
+ BIO_clear_retry_flags(b);
+ ctx->ok = 0;
+ return 0;
+ }
+ ctx->read_start += i;
+ ctx->cont = 1;
+ /*
+ * Note: it is possible for EVP_CipherUpdate to decrypt zero
+ * bytes because this is or looks like the final block: if this
+ * happens we should retry and either read more data or decrypt
+ * the final block
+ */
+ if (ctx->buf_len == 0)
+ continue;
+ }
+
+ if (ctx->buf_len <= outl)
+ i = ctx->buf_len;
+ else
+ i = outl;
+ if (i <= 0)
+ break;
+ memcpy(out, ctx->buf, i);
+ ret += i;
+ ctx->buf_off = i;
+ outl -= i;
+ out += i;
+ }
+
+ BIO_clear_retry_flags(b);
+ BIO_copy_next_retry(b);
+ return ((ret == 0) ? ctx->cont : ret);
+}
+
+static int enc_write(BIO *b, const char *in, int inl)
+{
+ int ret = 0, n, i;
+ BIO_ENC_CTX *ctx;
+ BIO *next;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
+
+ ret = inl;
+
+ BIO_clear_retry_flags(b);
+ n = ctx->buf_len - ctx->buf_off;
+ while (n > 0) {
+ i = BIO_write(next, &(ctx->buf[ctx->buf_off]), n);
+ if (i <= 0) {
+ BIO_copy_next_retry(b);
+ return i;
+ }
+ ctx->buf_off += i;
+ n -= i;
+ }
+ /* at this point all pending data has been written */
+
+ if ((in == NULL) || (inl <= 0))
+ return 0;
+
+ ctx->buf_off = 0;
+ while (inl > 0) {
+ n = (inl > ENC_BLOCK_SIZE) ? ENC_BLOCK_SIZE : inl;
+ if (!EVP_CipherUpdate(ctx->cipher,
+ ctx->buf, &ctx->buf_len,
+ (const unsigned char *)in, n)) {
+ BIO_clear_retry_flags(b);
+ ctx->ok = 0;
+ return 0;
+ }
+ inl -= n;
+ in += n;
+
+ ctx->buf_off = 0;
+ n = ctx->buf_len;
+ while (n > 0) {
+ i = BIO_write(next, &(ctx->buf[ctx->buf_off]), n);
+ if (i <= 0) {
+ BIO_copy_next_retry(b);
+ return (ret == inl) ? i : ret - inl;
+ }
+ n -= i;
+ ctx->buf_off += i;
+ }
+ ctx->buf_len = 0;
+ ctx->buf_off = 0;
+ }
+ BIO_copy_next_retry(b);
+ return ret;
+}
+
+static long enc_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+ BIO *dbio;
+ BIO_ENC_CTX *ctx, *dctx;
+ long ret = 1;
+ int i;
+ EVP_CIPHER_CTX **c_ctx;
+ BIO *next;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+ if (ctx == NULL)
+ return 0;
+
+ switch (cmd) {
+ case BIO_CTRL_RESET:
+ ctx->ok = 1;
+ ctx->finished = 0;
+ if (!EVP_CipherInit_ex(ctx->cipher, NULL, NULL, NULL, NULL,
+ EVP_CIPHER_CTX_encrypting(ctx->cipher)))
+ return 0;
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_CTRL_EOF: /* More to read */
+ if (ctx->cont <= 0)
+ ret = 1;
+ else
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_CTRL_WPENDING:
+ ret = ctx->buf_len - ctx->buf_off;
+ if (ret <= 0)
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_CTRL_PENDING: /* More to read in buffer */
+ ret = ctx->buf_len - ctx->buf_off;
+ if (ret <= 0)
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_CTRL_FLUSH:
+ /* do a final write */
+ again:
+ while (ctx->buf_len != ctx->buf_off) {
+ i = enc_write(b, NULL, 0);
+ if (i < 0)
+ return i;
+ }
+
+ if (!ctx->finished) {
+ ctx->finished = 1;
+ ctx->buf_off = 0;
+ ret = EVP_CipherFinal_ex(ctx->cipher,
+ (unsigned char *)ctx->buf,
+ &(ctx->buf_len));
+ ctx->ok = (int)ret;
+ if (ret <= 0)
+ break;
+
+ /* push out the bytes */
+ goto again;
+ }
+
+ /* Finally flush the underlying BIO */
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_C_GET_CIPHER_STATUS:
+ ret = (long)ctx->ok;
+ break;
+ case BIO_C_DO_STATE_MACHINE:
+ BIO_clear_retry_flags(b);
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ BIO_copy_next_retry(b);
+ break;
+ case BIO_C_GET_CIPHER_CTX:
+ c_ctx = (EVP_CIPHER_CTX **)ptr;
+ *c_ctx = ctx->cipher;
+ BIO_set_init(b, 1);
+ break;
+ case BIO_CTRL_DUP:
+ dbio = (BIO *)ptr;
+ dctx = BIO_get_data(dbio);
+ dctx->cipher = EVP_CIPHER_CTX_new();
+ if (dctx->cipher == NULL)
+ return 0;
+ ret = EVP_CIPHER_CTX_copy(dctx->cipher, ctx->cipher);
+ if (ret)
+ BIO_set_init(dbio, 1);
+ break;
+ default:
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ }
+ return ret;
+}
+
+static long enc_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)
+{
+ long ret = 1;
+ BIO *next = BIO_next(b);
+
+ if (next == NULL)
+ return 0;
+ switch (cmd) {
+ default:
+ ret = BIO_callback_ctrl(next, cmd, fp);
+ break;
+ }
+ return ret;
+}
+
+int BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
+ const unsigned char *i, int e)
+{
+ BIO_ENC_CTX *ctx;
+ long (*callback) (struct bio_st *, int, const char *, int, long, long);
+
+ ctx = BIO_get_data(b);
+ if (ctx == NULL)
+ return 0;
+
+ callback = BIO_get_callback(b);
+
+ if ((callback != NULL) &&
+ (callback(b, BIO_CB_CTRL, (const char *)c, BIO_CTRL_SET, e,
+ 0L) <= 0))
+ return 0;
+
+ BIO_set_init(b, 1);
+
+ if (!EVP_CipherInit_ex(ctx->cipher, c, NULL, k, i, e))
+ return 0;
+
+ if (callback != NULL)
+ return callback(b, BIO_CB_CTRL, (const char *)c, BIO_CTRL_SET, e, 1L);
+ return 1;
+}