[PATCH 5/9] kerberos: Implement SpVerifySignature.
Dmitry Timoshkov
dmitry at baikal.ru
Wed Jan 24 21:33:36 CST 2018
From: Hans Leidekker <hans at codeweavers.com>
Signed-off-by: Dmitry Timoshkov <dmitry at baikal.ru>
---
dlls/kerberos/krb5_ap.c | 38 +++++++++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/dlls/kerberos/krb5_ap.c b/dlls/kerberos/krb5_ap.c
index 451e08508b..43bbbae7e2 100644
--- a/dlls/kerberos/krb5_ap.c
+++ b/dlls/kerberos/krb5_ap.c
@@ -195,6 +195,7 @@ MAKE_FUNCPTR(gss_init_sec_context);
MAKE_FUNCPTR(gss_release_buffer);
MAKE_FUNCPTR(gss_release_cred);
MAKE_FUNCPTR(gss_release_name);
+MAKE_FUNCPTR(gss_verify_mic);
#undef MAKE_FUNCPTR
static BOOL load_gssapi_krb5(void)
@@ -221,6 +222,7 @@ static BOOL load_gssapi_krb5(void)
LOAD_FUNCPTR(gss_release_buffer)
LOAD_FUNCPTR(gss_release_cred)
LOAD_FUNCPTR(gss_release_name)
+ LOAD_FUNCPTR(gss_verify_mic)
#undef LOAD_FUNCPTR
return TRUE;
@@ -779,12 +781,46 @@ static NTSTATUS SEC_ENTRY kerberos_SpMakeSignature( LSA_SEC_HANDLE context, ULON
#endif
}
+static SECURITY_STATUS SEC_ENTRY kerberos_SpVerifySignature( LSA_SEC_HANDLE context, SecBufferDesc *message,
+ ULONG message_seq_no, ULONG *quality_of_protection )
+{
+#ifdef SONAME_LIBGSSAPI_KRB5
+ OM_uint32 ret, minor_status;
+ gss_buffer_desc data_buffer, token_buffer;
+ gss_ctx_id_t ctxt_handle;
+ int data_idx, token_idx;
+
+ TRACE( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
+ if (message_seq_no) FIXME( "ignoring message_seq_no %0x08x\n", message_seq_no );
+
+ if (!context) return SEC_E_INVALID_HANDLE;
+ ctxt_handle = ctxthandle_sspi_to_gss( context );
+
+ if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
+ data_buffer.length = message->pBuffers[data_idx].cbBuffer;
+ data_buffer.value = message->pBuffers[data_idx].pvBuffer;
+
+ if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
+ token_buffer.length = message->pBuffers[token_idx].cbBuffer;
+ token_buffer.value = message->pBuffers[token_idx].pvBuffer;
+
+ ret = pgss_verify_mic( &minor_status, ctxt_handle, &data_buffer, &token_buffer, NULL );
+ TRACE( "gss_verify_mic returned %08x minor status %08x\n", ret, minor_status );
+ if (ret == GSS_S_COMPLETE && quality_of_protection) *quality_of_protection = 0;
+
+ return status_gss_to_sspi( ret );
+#else
+ FIXME( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
+ return SEC_E_UNSUPPORTED_FUNCTION;
+#endif
+}
+
static SECPKG_USER_FUNCTION_TABLE kerberos_user_table =
{
kerberos_SpInstanceInit,
NULL, /* SpInitUserModeContext */
kerberos_SpMakeSignature,
- NULL, /* SpVerifySignature */
+ kerberos_SpVerifySignature,
NULL, /* SpSealMessage */
NULL, /* SpUnsealMessage */
NULL, /* SpGetContextToken */
--
2.15.1
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