commit 4c832213202b52bd2b6efa7d5625c85c81a19002
author Gilles Peskine <Gilles.Peskine@arm.com> Wed May 07 23:05:12 2025 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> Tue Jun 03 15:51:34 2025 +0200
tree 3cc501cf53c80d92f79ec0b81c7e77aef40e4ec5
parent 47f1d7be950d44bc2fb404f9e3530aee7d2ae757

Replace MBEDTLS_ERR_OID_NOT_FOUND with MBEDTLS_ERR_X509_UNKNOWN_OID

Replace the non-X.509-named error code `MBEDTLS_ERR_OID_NOT_FOUND` with
`MBEDTLS_ERR_X509_UNKNOWN_OID`, which already exists and is currently not
used for anything.

Public functions in X.509 propagate this error code, so it needs to have a
public name.

Remove the definition of `MBEDTLS_ERR_OID_NOT_FOUND` in `x509_oid.h`, then

```
git grep -l MBEDTLS_ERR_OID_NOT_FOUND | xargs perl -i -pe 's/\bMBEDTLS_ERR_OID_NOT_FOUND\b/MBEDTLS_ERR_X509_UNKNOWN_OID/g'
```

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

library/x509.c

diff --git a/library/x509.c b/library/x509.c
index fe4e3e3..54275eb 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -314,7 +314,7 @@
         /* Only MFG1 is recognised for now */
         if (MBEDTLS_OID_CMP(MBEDTLS_OID_MGF1, &alg_id) != 0) {
             return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE,
-                                     MBEDTLS_ERR_OID_NOT_FOUND);
+                                     MBEDTLS_ERR_X509_UNKNOWN_OID);
         }
 
         /* Parse HashAlgorithm */