diff options
| -rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_internal.h | 2 | ||||
| -rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_mech.c | 24 |
2 files changed, 26 insertions, 0 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_internal.h b/net/sunrpc/auth_gss/gss_krb5_internal.h index 11402c3b4972..a3fe4be3b9ae 100644 --- a/net/sunrpc/auth_gss/gss_krb5_internal.h +++ b/net/sunrpc/auth_gss/gss_krb5_internal.h @@ -180,6 +180,8 @@ u32 krb5_etm_encrypt(struct krb5_ctx *kctx, u32 offset, struct xdr_buf *buf, u32 krb5_etm_decrypt(struct krb5_ctx *kctx, u32 offset, u32 len, struct xdr_buf *buf, u32 *headskip, u32 *tailskip); +u32 gss_krb5_errno_to_status(int err); + #if IS_ENABLED(CONFIG_KUNIT) void krb5_nfold(u32 inbits, const u8 *in, u32 outbits, u8 *out); const struct gss_krb5_enctype *gss_krb5_lookup_enctype(u32 etype); diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c index 060d8fc4358e..7606bbd7b8c4 100644 --- a/net/sunrpc/auth_gss/gss_krb5_mech.c +++ b/net/sunrpc/auth_gss/gss_krb5_mech.c @@ -517,6 +517,30 @@ gss_krb5_delete_sec_context(void *internal_ctx) } /** + * gss_krb5_errno_to_status - Map a negative errno to a GSS major status + * @err: negative errno value, or zero + * + * Returns: + * %GSS_S_COMPLETE if @err is zero + * %GSS_S_BAD_SIG if @err is -EBADMSG (integrity check failure) + * %GSS_S_DEFECTIVE_TOKEN if @err is -EPROTO (malformed token) + * %GSS_S_FAILURE for all other negative values + */ +u32 gss_krb5_errno_to_status(int err) +{ + switch (err) { + case 0: + return GSS_S_COMPLETE; + case -EBADMSG: + return GSS_S_BAD_SIG; + case -EPROTO: + return GSS_S_DEFECTIVE_TOKEN; + default: + return GSS_S_FAILURE; + } +} + +/** * gss_krb5_get_mic - get_mic for the Kerberos GSS mechanism * @gctx: GSS context * @text: plaintext to checksum |