Rename all getters to use get/get0 in name

For functions that exist in 1.1.1 provide a simple aliases via #define.

Fixes #15236

Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_,
EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_,
EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_,
EVP_MD_, and EVP_CIPHER_ prefixes are renamed.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15405)

crypto/pkcs7/pk7_doit.c

diff --git a/crypto/pkcs7/pk7_doit.c b/crypto/pkcs7/pk7_doit.c
index 8d4e95a..441bf78 100644
--- a/crypto/pkcs7/pk7_doit.c
+++ b/crypto/pkcs7/pk7_doit.c
@@ -296,16 +296,16 @@
             goto err;
         }
         BIO_get_cipher_ctx(btmp, &ctx);
-        keylen = EVP_CIPHER_key_length(evp_cipher);
-        ivlen = EVP_CIPHER_iv_length(evp_cipher);
-        xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
+        keylen = EVP_CIPHER_get_key_length(evp_cipher);
+        ivlen = EVP_CIPHER_get_iv_length(evp_cipher);
+        xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_get_type(evp_cipher));
         if (ivlen > 0)
             if (RAND_bytes_ex(libctx, iv, ivlen, 0) <= 0)
                 goto err;
 
         (void)ERR_set_mark();
         fetched_cipher = EVP_CIPHER_fetch(libctx,
-                                          EVP_CIPHER_name(evp_cipher),
+                                          EVP_CIPHER_get0_name(evp_cipher),
                                           propq);
         (void)ERR_pop_to_mark();
         if (fetched_cipher != NULL)
@@ -572,7 +572,7 @@
                 ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
                 ri->ctx = p7_ctx;
                 if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey,
-                        EVP_CIPHER_key_length(cipher)) < 0)
+                        EVP_CIPHER_get_key_length(cipher)) < 0)
                     goto err;
                 ERR_clear_error();
             }
@@ -591,7 +591,7 @@
         if (EVP_CIPHER_asn1_to_param(evp_ctx, enc_alg->parameter) < 0)
             goto err;
         /* Generate random key as MMA defence */
-        len = EVP_CIPHER_CTX_key_length(evp_ctx);
+        len = EVP_CIPHER_CTX_get_key_length(evp_ctx);
         if (len <= 0)
             goto err;
         tkeylen = (size_t)len;
@@ -606,7 +606,7 @@
             tkey = NULL;
         }
 
-        if (eklen != EVP_CIPHER_CTX_key_length(evp_ctx)) {
+        if (eklen != EVP_CIPHER_CTX_get_key_length(evp_ctx)) {
             /*
              * Some S/MIME clients don't use the same key and effective key
              * length. The key length is determined by the size of the
@@ -679,7 +679,7 @@
             ERR_raise(ERR_LIB_PKCS7, ERR_R_INTERNAL_ERROR);
             return NULL;
         }
-        if (EVP_MD_CTX_type(*pmd) == nid)
+        if (EVP_MD_CTX_get_type(*pmd) == nid)
             return bio;
         bio = BIO_next(bio);
     }
@@ -837,7 +837,7 @@
             } else {
                 unsigned char *abuf = NULL;
                 unsigned int abuflen;
-                abuflen = EVP_PKEY_size(si->pkey);
+                abuflen = EVP_PKEY_get_size(si->pkey);
                 abuf = OPENSSL_malloc(abuflen);
                 if (abuf == NULL)
                     goto err;
@@ -915,7 +915,7 @@
         goto err;
     }
 
-    if (EVP_DigestSignInit_ex(mctx, &pctx, EVP_MD_name(md),
+    if (EVP_DigestSignInit_ex(mctx, &pctx, EVP_MD_get0_name(md),
                               ossl_pkcs7_ctx_get0_libctx(ctx),
                               ossl_pkcs7_ctx_get0_propq(ctx), si->pkey,
                               NULL) <= 0)
@@ -1044,13 +1044,13 @@
             ERR_raise(ERR_LIB_PKCS7, ERR_R_INTERNAL_ERROR);
             goto err;
         }
-        if (EVP_MD_CTX_type(mdc) == md_type)
+        if (EVP_MD_CTX_get_type(mdc) == md_type)
             break;
         /*
          * Workaround for some broken clients that put the signature OID
          * instead of the digest OID in digest_alg->algorithm
          */
-        if (EVP_MD_pkey_type(EVP_MD_CTX_get0_md(mdc)) == md_type)
+        if (EVP_MD_get_pkey_type(EVP_MD_CTX_get0_md(mdc)) == md_type)
             break;
         btmp = BIO_next(btmp);
     }

crypto/pkcs7/pk7_lib.c

diff --git a/crypto/pkcs7/pk7_lib.c b/crypto/pkcs7/pk7_lib.c
index a4b62f4..c32a666 100644
--- a/crypto/pkcs7/pk7_lib.c
+++ b/crypto/pkcs7/pk7_lib.c
@@ -316,7 +316,7 @@
         hnid = OBJ_obj2nid(alg1->algorithm);
         if (hnid == NID_undef)
             return -1;
-        if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
+        if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_get_id(pkey)))
             return -1;
         X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
     }
@@ -362,7 +362,7 @@
 
     /* Set the algorithms */
 
-    X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)),
+    X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_get_type(dgst)),
                     V_ASN1_NULL, NULL);
 
     if (EVP_PKEY_is_a(pkey, "EC") || EVP_PKEY_is_a(pkey, "DSA"))
@@ -689,7 +689,7 @@
     }
 
     /* Check cipher OID exists and has data in it */
-    i = EVP_CIPHER_type(cipher);
+    i = EVP_CIPHER_get_type(cipher);
     if (i == NID_undef) {
         ERR_raise(ERR_LIB_PKCS7, PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
         return 0;