Add ossl_bn_group symbols

Partial fix for #12964

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14473)
diff --git a/crypto/bn/bn_srp.c b/crypto/bn/bn_srp.c
index 34e11ce..047e2e3 100644
--- a/crypto/bn/bn_srp.c
+++ b/crypto/bn/bn_srp.c
@@ -48,7 +48,7 @@
     bn_pack4(0xEEAF, 0x0AB9, 0xADB3, 0x8DD6)
 };
 
-const BIGNUM bn_group_1024 = {
+const BIGNUM ossl_bn_group_1024 = {
     (BN_ULONG *)bn_group_1024_value,
     OSSL_NELEM(bn_group_1024_value),
     OSSL_NELEM(bn_group_1024_value),
@@ -83,7 +83,7 @@
     bn_pack4(0x9DEF, 0x3CAF, 0xB939, 0x277A)
 };
 
-const BIGNUM bn_group_1536 = {
+const BIGNUM ossl_bn_group_1536 = {
     (BN_ULONG *)bn_group_1536_value,
     OSSL_NELEM(bn_group_1536_value),
     OSSL_NELEM(bn_group_1536_value),
@@ -126,7 +126,7 @@
     bn_pack4(0xAC6B, 0xDB41, 0x324A, 0x9A9B)
 };
 
-const BIGNUM bn_group_2048 = {
+const BIGNUM ossl_bn_group_2048 = {
     (BN_ULONG *)bn_group_2048_value,
     OSSL_NELEM(bn_group_2048_value),
     OSSL_NELEM(bn_group_2048_value),
@@ -185,7 +185,7 @@
     bn_pack4(0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF)
 };
 
-const BIGNUM bn_group_3072 = {
+const BIGNUM ossl_bn_group_3072 = {
     (BN_ULONG *)bn_group_3072_value,
     OSSL_NELEM(bn_group_3072_value),
     OSSL_NELEM(bn_group_3072_value),
@@ -260,7 +260,7 @@
     bn_pack4(0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF)
 };
 
-const BIGNUM bn_group_4096 = {
+const BIGNUM ossl_bn_group_4096 = {
     (BN_ULONG *)bn_group_4096_value,
     OSSL_NELEM(bn_group_4096_value),
     OSSL_NELEM(bn_group_4096_value),
@@ -367,7 +367,7 @@
     bn_pack4(0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF)
 };
 
-const BIGNUM bn_group_6144 = {
+const BIGNUM ossl_bn_group_6144 = {
     (BN_ULONG *)bn_group_6144_value,
     OSSL_NELEM(bn_group_6144_value),
     OSSL_NELEM(bn_group_6144_value),
@@ -506,7 +506,7 @@
     bn_pack4(0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF)
 };
 
-const BIGNUM bn_group_8192 = {
+const BIGNUM ossl_bn_group_8192 = {
     (BN_ULONG *)bn_group_8192_value,
     OSSL_NELEM(bn_group_8192_value),
     OSSL_NELEM(bn_group_8192_value),
@@ -516,7 +516,7 @@
 
 static const BN_ULONG bn_generator_19_value[] = { 19 };
 
-const BIGNUM bn_generator_19 = {
+const BIGNUM ossl_bn_generator_19 = {
     (BN_ULONG *)bn_generator_19_value,
     1,
     1,
@@ -525,7 +525,7 @@
 };
 static const BN_ULONG bn_generator_5_value[] = { 5 };
 
-const BIGNUM bn_generator_5 = {
+const BIGNUM ossl_bn_generator_5 = {
     (BN_ULONG *)bn_generator_5_value,
     1,
     1,
@@ -534,7 +534,7 @@
 };
 static const BN_ULONG bn_generator_2_value[] = { 2 };
 
-const BIGNUM bn_generator_2 = {
+const BIGNUM ossl_bn_generator_2 = {
     (BN_ULONG *)bn_generator_2_value,
     1,
     1,
diff --git a/crypto/srp/srp_lib.c b/crypto/srp/srp_lib.c
index 38bde78..df0d372 100644
--- a/crypto/srp/srp_lib.c
+++ b/crypto/srp/srp_lib.c
@@ -291,13 +291,13 @@
 }
 
 static SRP_gN knowngN[] = {
-    {"8192", &bn_generator_19, &bn_group_8192},
-    {"6144", &bn_generator_5, &bn_group_6144},
-    {"4096", &bn_generator_5, &bn_group_4096},
-    {"3072", &bn_generator_5, &bn_group_3072},
-    {"2048", &bn_generator_2, &bn_group_2048},
-    {"1536", &bn_generator_2, &bn_group_1536},
-    {"1024", &bn_generator_2, &bn_group_1024},
+    {"8192", &ossl_bn_generator_19, &ossl_bn_group_8192},
+    {"6144", &ossl_bn_generator_5, &ossl_bn_group_6144},
+    {"4096", &ossl_bn_generator_5, &ossl_bn_group_4096},
+    {"3072", &ossl_bn_generator_5, &ossl_bn_group_3072},
+    {"2048", &ossl_bn_generator_2, &ossl_bn_group_2048},
+    {"1536", &ossl_bn_generator_2, &ossl_bn_group_1536},
+    {"1024", &ossl_bn_generator_2, &ossl_bn_group_1024},
 };
 
 # define KNOWN_GN_NUMBER sizeof(knowngN) / sizeof(SRP_gN)
diff --git a/include/crypto/bn_srp.h b/include/crypto/bn_srp.h
index 897618c..805f4a4 100644
--- a/include/crypto/bn_srp.h
+++ b/include/crypto/bn_srp.h
@@ -9,24 +9,24 @@
 
 #ifndef OPENSSL_NO_SRP
 
-extern const BIGNUM bn_group_1024;
+extern const BIGNUM ossl_bn_group_1024;
 
-extern const BIGNUM bn_group_1536;
+extern const BIGNUM ossl_bn_group_1536;
 
-extern const BIGNUM bn_group_2048;
+extern const BIGNUM ossl_bn_group_2048;
 
-extern const BIGNUM bn_group_3072;
+extern const BIGNUM ossl_bn_group_3072;
 
-extern const BIGNUM bn_group_4096;
+extern const BIGNUM ossl_bn_group_4096;
 
-extern const BIGNUM bn_group_6144;
+extern const BIGNUM ossl_bn_group_6144;
 
-extern const BIGNUM bn_group_8192;
+extern const BIGNUM ossl_bn_group_8192;
 
-extern const BIGNUM bn_generator_19;
+extern const BIGNUM ossl_bn_generator_19;
 
-extern const BIGNUM bn_generator_5;
+extern const BIGNUM ossl_bn_generator_5;
 
-extern const BIGNUM bn_generator_2;
+extern const BIGNUM ossl_bn_generator_2;
 
 #endif