Make the offline status backend-global

Add helpers functions to query/set the offline status per backend.
Now all providers share the same offline status.

2 files changed, 29 insertions, 55 deletions

diff --git a/server/providers/ldap/ldap_auth.c b/server/providers/ldap/ldap_auth.c
index 47ed0f0d..51afee36 100644
--- a/server/providers/ldap/ldap_auth.c
+++ b/server/providers/ldap/ldap_auth.c
@@ -40,7 +40,7 @@
 #include "providers/ldap/sdap_async.h"
 
 struct sdap_auth_ctx {
-    struct be_ctx *bectx;
+    struct be_ctx *be;
     struct sdap_options *opts;
 };
 
@@ -87,8 +87,8 @@ struct tevent_req *get_user_dn_send(TALLOC_CTX *memctx,
 
     /* this sysdb call uses a sysdn operation, which means it will be
      * schedule only after we return, no timer hack needed */
-    ret = sysdb_get_user_attr(state, state->ctx->bectx->sysdb,
-                              state->ctx->bectx->domain, state->name,
+    ret = sysdb_get_user_attr(state, state->ctx->be->sysdb,
+                              state->ctx->be->domain, state->name,
                               state->attrs, get_user_dn_done, req);
     if (ret) {
         tevent_req_error(req, ret);
@@ -292,7 +292,7 @@ int auth_recv(struct tevent_req *req, enum sdap_result *result,
     uint64_t err;
 
     if (tevent_req_is_error(req, &tstate, &err)) {
-        if (err == EAGAIN) *result = SDAP_UNAVAIL;
+        if (err == ETIMEDOUT) *result = SDAP_UNAVAIL;
         else *result = SDAP_ERROR;
         return EOK;
     }
@@ -338,6 +338,12 @@ static void sdap_pam_chpass_send(struct be_req *breq)
                           struct sdap_auth_ctx);
     pd = talloc_get_type(breq->req_data, struct pam_data);
 
+    if (be_is_offline(ctx->be)) {
+        DEBUG(4, ("Backend is marked offline, retry later!\n"));
+        pd->pam_status = PAM_AUTHINFO_UNAVAIL;
+        goto done;
+    }
+
     DEBUG(2, ("starting password change request for user [%s].\n", pd->user));
 
     pd->pam_status = PAM_SYSTEM_ERR;
@@ -466,6 +472,12 @@ static void sdap_pam_auth_send(struct be_req *breq)
     ctx = talloc_get_type(breq->be_ctx->bet_info[BET_AUTH].pvt_bet_data, struct sdap_auth_ctx);
     pd = talloc_get_type(breq->req_data, struct pam_data);
 
+    if (be_is_offline(ctx->be)) {
+        DEBUG(4, ("Backend is marked offline, retry later!\n"));
+        pd->pam_status = PAM_AUTHINFO_UNAVAIL;
+        goto done;
+    }
+
     pd->pam_status = PAM_SYSTEM_ERR;
 
     switch (pd->cmd) {
@@ -531,6 +543,11 @@ static void sdap_pam_auth_done(struct tevent_req *req)
         state->pd->pam_status = PAM_SYSTEM_ERR;
     }
 
+    if (result == SDAP_UNAVAIL) {
+        be_mark_offline(state->breq->be_ctx);
+        goto done;
+    }
+
     if (result == SDAP_AUTH_SUCCESS &&
         state->breq->be_ctx->domain->cache_credentials) {
 
@@ -589,13 +606,11 @@ static void sdap_shutdown(struct be_req *req)
 }
 
 struct bet_ops sdap_auth_ops = {
-    .check_online = NULL,
     .handler = sdap_pam_auth_send,
     .finalize = sdap_shutdown
 };
 
 struct bet_ops sdap_chpass_ops = {
-    .check_online = NULL,
     .handler = sdap_pam_chpass_send,
     .finalize = sdap_shutdown
 };
@@ -612,7 +627,7 @@ int sssm_ldap_auth_init(struct be_ctx *bectx,
     ctx = talloc(bectx, struct sdap_auth_ctx);
     if (!ctx) return ENOMEM;
 
-    ctx->bectx = bectx;
+    ctx->be = bectx;
 
     ret = sdap_get_options(ctx, bectx->cdb, bectx->conf_path,
                               &ctx->opts);
diff --git a/server/providers/ldap/ldap_id.c b/server/providers/ldap/ldap_id.c
index bebeea22..1984582d 100644
--- a/server/providers/ldap/ldap_id.c
+++ b/server/providers/ldap/ldap_id.c
@@ -39,9 +39,6 @@ struct sdap_id_ctx {
     /* global sdap handler */
     struct sdap_handle *gsh;
 
-    time_t went_offline;
-    bool offline;
-
     /* enumeration loop timer */
     struct timeval last_run;
 
@@ -54,43 +51,6 @@ static void sdap_req_done(struct be_req *req, int ret, const char *err)
     return req->fn(req, ret, err);
 }
 
-static bool is_offline(struct sdap_id_ctx *ctx)
-{
-    time_t now = time(NULL);
-
-    /* check if we are past the offline blackout timeout */
-    if (ctx->went_offline + ctx->opts->offline_timeout < now) {
-        ctx->offline = false;
-    }
-
-    return ctx->offline;
-}
-
-static void mark_offline(struct sdap_id_ctx *ctx)
-{
-    DEBUG(8, ("Going offline!\n"));
-
-    ctx->went_offline = time(NULL);
-    ctx->offline = true;
-}
-
-static void sdap_check_online(struct be_req *req)
-{
-    struct be_online_req *oreq;
-    struct sdap_id_ctx *ctx;
-
-    ctx = talloc_get_type(req->be_ctx->bet_info[BET_ID].pvt_bet_data, struct sdap_id_ctx);
-    oreq = talloc_get_type(req->req_data, struct be_online_req);
-
-    if (is_offline(ctx)) {
-        oreq->online = MOD_OFFLINE;
-    } else {
-        oreq->online = MOD_ONLINE;
-    }
-
-    sdap_req_done(req, EOK, NULL);
-}
-
 static int build_attrs_from_map(TALLOC_CTX *memctx,
                                 struct sdap_id_map *map,
                                 size_t size,
@@ -403,7 +363,7 @@ static void users_get_done(struct tevent_req *req)
         if (ret == ETIMEDOUT) {
             ctx = talloc_get_type(breq->be_ctx->bet_info[BET_ID].pvt_bet_data,
                                   struct sdap_id_ctx);
-            mark_offline(ctx);
+            be_mark_offline(ctx->be);
         }
     }
 
@@ -568,7 +528,7 @@ static void groups_get_done(struct tevent_req *req)
         if (ret == ETIMEDOUT) {
             ctx = talloc_get_type(breq->be_ctx->bet_info[BET_ID].pvt_bet_data,
                                   struct sdap_id_ctx);
-            mark_offline(ctx);
+            be_mark_offline(ctx->be);
         }
     }
 
@@ -708,7 +668,7 @@ static void groups_by_user_done(struct tevent_req *req)
         if (ret == ETIMEDOUT) {
             ctx = talloc_get_type(breq->be_ctx->bet_info[BET_ID].pvt_bet_data,
                                   struct sdap_id_ctx);
-            mark_offline(ctx);
+            be_mark_offline(ctx->be);
         }
     }
 
@@ -731,7 +691,7 @@ static void sdap_get_account_info(struct be_req *breq)
 
     ctx = talloc_get_type(breq->be_ctx->bet_info[BET_ID].pvt_bet_data, struct sdap_id_ctx);
 
-    if (is_offline(ctx)) {
+    if (be_is_offline(ctx->be)) {
         return sdap_req_done(breq, EAGAIN, "Offline");
     }
 
@@ -830,7 +790,7 @@ static void ldap_id_enumerate(struct tevent_context *ev,
     struct tevent_timer *timeout;
     struct tevent_req *req;
 
-    if (is_offline(ctx)) {
+    if (be_is_offline(ctx->be)) {
         DEBUG(4, ("Backend is marked offline, retry later!\n"));
         /* schedule starting from now, not the last run */
         ldap_id_enumerate_set_timer(ctx, tevent_timeval_current());
@@ -971,7 +931,7 @@ fail:
                   (int)err, strerror(err)));
 
         if (err == ETIMEDOUT) {
-            mark_offline(state->ctx);
+            be_mark_offline(state->ctx->be);
         }
     }
 
@@ -998,7 +958,7 @@ static void ldap_id_enum_groups_done(struct tevent_req *subreq)
 
 fail:
     if (err == ETIMEDOUT) {
-        mark_offline(state->ctx);
+        be_mark_offline(state->ctx->be);
     }
 
     DEBUG(1, ("Failed to enumerate groups, retrying later!\n"));
@@ -1312,7 +1272,6 @@ static void sdap_shutdown(struct be_req *req)
 }
 
 struct bet_ops sdap_id_ops = {
-    .check_online = sdap_check_online,
     .handler = sdap_get_account_info,
     .finalize = sdap_shutdown
 };