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plugin interface functions must specify calling convention

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The plugin interfaces were originally implemented for use on
Unix where KRB5_CALLCONV, HEIM_CALLCONV and similar are defined
as nothing.  However, on 32-bit Windows the calling convention
matters and executing a __stdcall function through a __cdecl
function pointer will result in failures.

This change updates the krb5plugin_windc, krb5plugin_service_locate,
krb5plugin_send_to_kdc plugins to specify the KRB5_CALLCONV for
functions.   This brings the plugins into compliance with the
heim_plugin_common interface requirement that init() and fini()
use the platform specified HEIM_CALLCONV.

The krb5-plugin(7) man page is updated and the lib/krb5/test_plugin
test is also fixed.

With this change all tests pass on 32-bit Windows.

Change-Id: Ic9d2e1285c9c179e3898dc9d071ed092bcddc406
This commit is contained in:
Jeffrey Altman
2021-11-18 09:16:45 -05:00
committed by Nico Williams
parent 357a38fc7f
commit 6cfbde4d86
5 changed files with 24 additions and 22 deletions
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10
kdc/windc_plugin.h
View File

@@ -53,11 +53,11 @@
struct hdb_entry_ex;
typedef krb5_error_code
(*krb5plugin_windc_pac_generate)(void *, krb5_context,
(KRB5_CALLCONV *krb5plugin_windc_pac_generate)(void *, krb5_context,
struct hdb_entry_ex *, krb5_pac *);
typedef krb5_error_code
(*krb5plugin_windc_pac_verify)(void *, krb5_context,
(KRB5_CALLCONV *krb5plugin_windc_pac_verify)(void *, krb5_context,
const krb5_principal, /* new ticket client */
const krb5_principal, /* delegation proxy */
struct hdb_entry_ex *,/* client */
@@ -66,7 +66,7 @@ typedef krb5_error_code
krb5_pac *);
typedef krb5_error_code
(*krb5plugin_windc_client_access)(
(KRB5_CALLCONV *krb5plugin_windc_client_access)(
void *, krb5_context,
krb5_kdc_configuration *config,
hdb_entry_ex *, const char *,
@@ -79,8 +79,8 @@ typedef krb5_error_code
typedef struct krb5plugin_windc_ftable {
int minor_version;
krb5_error_code (*init)(krb5_context, void **);
void (*fini)(void *);
krb5_error_code (KRB5_CALLCONV *init)(krb5_context, void **);
void (KRB5_CALLCONV *fini)(void *);
krb5plugin_windc_pac_generate pac_generate;
krb5plugin_windc_pac_verify pac_verify;
krb5plugin_windc_client_access client_access;