Making the authtok structure really opaque.

Definition of structure sss_auth_token was removed from header file
authtok.h and there left only declaration of this structure.
Therefore only way how to use this structure is to use accessory function from
same header file.

To creating new empty authotok can only be used newly created function
sss_authtok_new(). TALLOC context was removed from copy and setter functions,
because pointer to stuct sss_auth_token is used as a memory context.

All declaration of struct sss_auth_token variables was replaced with
pointer to this structure and related changes was made in source code.

Function copy_pam_data can copy from argument src which was dynamically
allocated with function create_pam_data() or zero initialized struct pam_data
allocated on stack.

https://fedorahosted.org/sssd/ticket/1830

1 files changed, 5 insertions, 5 deletions

diff --git a/src/providers/krb5/krb5_auth.c b/src/providers/krb5/krb5_auth.c
index a9b75768..6c0f429f 100644
--- a/src/providers/krb5/krb5_auth.c
+++ b/src/providers/krb5/krb5_auth.c
@@ -284,7 +284,7 @@ static void krb5_auth_cache_creds(struct krb5_ctx *krb5_ctx,
     const char *password = NULL;
     errno_t ret;
 
-    ret = sss_authtok_get_password(&pd->authtok, &password, NULL);
+    ret = sss_authtok_get_password(pd->authtok, &password, NULL);
     if (ret != EOK) {
         DEBUG(0, ("Failed to get password [%d] %s\n", ret, strerror(ret)));
         *pam_status = PAM_SYSTEM_ERR;
@@ -397,10 +397,10 @@ static void krb5_auth_store_creds(struct sysdb_ctx *sysdb,
             break;
         case SSS_PAM_AUTHENTICATE:
         case SSS_PAM_CHAUTHTOK_PRELIM:
-            ret = sss_authtok_get_password(&pd->authtok, &password, NULL);
+            ret = sss_authtok_get_password(pd->authtok, &password, NULL);
             break;
         case SSS_PAM_CHAUTHTOK:
-            ret = sss_authtok_get_password(&pd->newauthtok, &password, NULL);
+            ret = sss_authtok_get_password(pd->newauthtok, &password, NULL);
             break;
         default:
             DEBUG(0, ("unsupported PAM command [%d].\n", pd->cmd));
@@ -490,7 +490,7 @@ struct tevent_req *krb5_auth_send(TALLOC_CTX *mem_ctx,
         case SSS_PAM_AUTHENTICATE:
         case SSS_CMD_RENEW:
         case SSS_PAM_CHAUTHTOK:
-            if (sss_authtok_get_type(&pd->authtok) != SSS_AUTHTOK_TYPE_PASSWORD) {
+            if (sss_authtok_get_type(pd->authtok) != SSS_AUTHTOK_TYPE_PASSWORD) {
                 DEBUG(1, ("Missing authtok for user [%s].\n", pd->user));
                 state->pam_status = PAM_SYSTEM_ERR;
                 state->dp_err = DP_ERR_FATAL;
@@ -500,7 +500,7 @@ struct tevent_req *krb5_auth_send(TALLOC_CTX *mem_ctx,
             break;
         case SSS_PAM_CHAUTHTOK_PRELIM:
             if (pd->priv == 1 &&
-                sss_authtok_get_type(&pd->authtok) != SSS_AUTHTOK_TYPE_PASSWORD) {
+                sss_authtok_get_type(pd->authtok) != SSS_AUTHTOK_TYPE_PASSWORD) {
                 DEBUG(4, ("Password reset by root is not supported.\n"));
                 state->pam_status = PAM_PERM_DENIED;
                 state->dp_err = DP_ERR_OK;