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-rw-r--r--src/providers/data_provider_fo.c90
-rw-r--r--src/providers/dp_backend.h5
-rw-r--r--src/providers/fail_over.c7
-rw-r--r--src/providers/fail_over.h3
-rw-r--r--src/providers/krb5/krb5_auth.c19
-rw-r--r--src/providers/ldap/ldap_auth.c5
-rw-r--r--src/providers/ldap/sdap_async_connection.c13
7 files changed, 105 insertions, 37 deletions
diff --git a/src/providers/data_provider_fo.c b/src/providers/data_provider_fo.c
index 4c2c0b4a..c358e68d 100644
--- a/src/providers/data_provider_fo.c
+++ b/src/providers/data_provider_fo.c
@@ -46,6 +46,7 @@ struct be_svc_data {
bool run_callbacks;
struct be_svc_callback *callbacks;
+ struct fo_server *first_resolved;
};
struct be_failover_ctx {
@@ -398,42 +399,43 @@ static void be_resolve_server_done(struct tevent_req *subreq)
switch (ret) {
case EOK:
if (!state->srv) {
- tevent_req_error(req, EFAULT);
- return;
+ ret = EFAULT;
+ goto fail;
}
break;
case ENOENT:
/* all servers have been tried and none
* was found good, go offline */
- tevent_req_error(req, EIO);
- return;
+ ret = EIO;
+ goto fail;
default:
/* mark server as bad and retry */
if (!state->srv) {
- tevent_req_error(req, EFAULT);
- return;
+ ret = EFAULT;
+ goto fail;
}
- DEBUG(6, ("Couldn't resolve server (%s), resolver returned (%d)\n",
- fo_get_server_str_name(state->srv), ret));
+ DEBUG(SSSDBG_MINOR_FAILURE,
+ ("Couldn't resolve server (%s), resolver returned (%d)\n",
+ fo_get_server_str_name(state->srv), ret));
state->attempts++;
if (state->attempts >= 10) {
DEBUG(2, ("Failed to find a server after 10 attempts\n"));
- tevent_req_error(req, EIO);
- return;
+ ret = EIO;
+ goto fail;
}
/* now try next one */
- DEBUG(6, ("Trying with the next one!\n"));
+ DEBUG(SSSDBG_TRACE_LIBS, ("Trying with the next one!\n"));
subreq = fo_resolve_service_send(state, state->ev,
state->ctx->be_fo->resolv,
state->ctx->be_fo->fo_ctx,
state->svc->fo_service);
if (!subreq) {
- tevent_req_error(req, ENOMEM);
- return;
+ ret = ENOMEM;
+ goto fail;
}
tevent_req_set_callback(subreq, be_resolve_server_done, req);
@@ -441,24 +443,34 @@ static void be_resolve_server_done(struct tevent_req *subreq)
}
/* all fine we got the server */
+ if (state->svc->first_resolved == NULL) {
+ DEBUG(SSSDBG_TRACE_LIBS, ("Saving the first resolved server\n"));
+ state->svc->first_resolved = state->srv;
+ } else if (state->svc->first_resolved == state->srv) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("The fail over cycled through all available servers\n"));
+ ret = ENOENT;
+ goto fail;
+ }
- if (DEBUG_IS_SET(SSSDBG_CONF_SETTINGS) && fo_get_server_name(state->srv)) {
+ if (DEBUG_IS_SET(SSSDBG_FUNC_DATA) && fo_get_server_name(state->srv)) {
struct resolv_hostent *srvaddr;
char ipaddr[128];
srvaddr = fo_get_server_hostent(state->srv);
if (!srvaddr) {
- DEBUG(3, ("FATAL: No hostent available for server (%s)\n",
- fo_get_server_str_name(state->srv)));
- tevent_req_error(req, EFAULT);
- return;
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("FATAL: No hostent available for server (%s)\n",
+ fo_get_server_str_name(state->srv)));
+ ret = EFAULT;
+ goto fail;
}
inet_ntop(srvaddr->family, srvaddr->addr_list[0]->ipaddr,
ipaddr, 128);
- DEBUG(4, ("Found address for server %s: [%s] TTL %d\n",
- fo_get_server_str_name(state->srv), ipaddr,
- srvaddr->addr_list[0]->ttl));
+ DEBUG(SSSDBG_FUNC_DATA, ("Found address for server %s: [%s] TTL %d\n",
+ fo_get_server_str_name(state->srv), ipaddr,
+ srvaddr->addr_list[0]->ttl));
}
srv_status_change = fo_get_server_hostname_last_change(state->srv);
@@ -478,6 +490,12 @@ static void be_resolve_server_done(struct tevent_req *subreq)
}
tevent_req_done(req);
+ return;
+
+fail:
+ DEBUG(SSSDBG_TRACE_LIBS, ("Server resolution failed: %d\n", ret));
+ state->svc->first_resolved = NULL;
+ tevent_req_error(req, ret);
}
int be_resolve_server_recv(struct tevent_req *req, struct fo_server **srv)
@@ -524,3 +542,33 @@ void reset_fo(struct be_ctx *be_ctx)
fo_reset_services(be_ctx->be_fo->fo_ctx);
}
+void be_fo_set_port_status(struct be_ctx *ctx,
+ struct fo_server *server,
+ enum port_status status)
+{
+ struct be_svc_data *svc;
+ struct fo_service *fsvc;
+
+ fo_set_port_status(server, status);
+
+ fsvc = fo_get_server_service(server);
+ if (!fsvc) {
+ DEBUG(SSSDBG_OP_FAILURE, ("BUG: No service associated with server\n"));
+ return;
+ }
+
+ DLIST_FOR_EACH(svc, ctx->be_fo->svcs) {
+ if (svc->fo_service == fsvc) break;
+ }
+
+ if (!svc) {
+ DEBUG(SSSDBG_OP_FAILURE, ("BUG: Unknown service\n"));
+ return;
+ }
+
+ if (status == PORT_WORKING) {
+ /* We were successful in connecting to the server. Cycle through all
+ * available servers next time */
+ svc->first_resolved = NULL;
+ }
+}
diff --git a/src/providers/dp_backend.h b/src/providers/dp_backend.h
index b6b3db50..96c77478 100644
--- a/src/providers/dp_backend.h
+++ b/src/providers/dp_backend.h
@@ -209,6 +209,11 @@ struct tevent_req *be_resolve_server_send(TALLOC_CTX *memctx,
struct be_ctx *ctx,
const char *service_name);
int be_resolve_server_recv(struct tevent_req *req, struct fo_server **srv);
+
+void be_fo_set_port_status(struct be_ctx *ctx,
+ struct fo_server *server,
+ enum port_status status);
+
/*
* Instruct fail-over to try next server on the next connect attempt.
* Should be used after connection to service was unexpectedly dropped
diff --git a/src/providers/fail_over.c b/src/providers/fail_over.c
index 637b5b4d..b8310684 100644
--- a/src/providers/fail_over.c
+++ b/src/providers/fail_over.c
@@ -1476,3 +1476,10 @@ void fo_reset_services(struct fo_ctx *fo_ctx)
}
}
+struct fo_service *
+fo_get_server_service(struct fo_server *server)
+{
+ if (!server) return NULL;
+ return server->service;
+}
+
diff --git a/src/providers/fail_over.h b/src/providers/fail_over.h
index fee64e82..8fbbe251 100644
--- a/src/providers/fail_over.h
+++ b/src/providers/fail_over.h
@@ -185,4 +185,7 @@ time_t fo_get_server_hostname_last_change(struct fo_server *server);
int fo_is_srv_lookup(struct fo_server *s);
void fo_reset_services(struct fo_ctx *fo_ctx);
+
+struct fo_service *fo_get_server_service(struct fo_server *server);
+
#endif /* !__FAIL_OVER_H__ */
diff --git a/src/providers/krb5/krb5_auth.c b/src/providers/krb5/krb5_auth.c
index 14a7c547..72992ba7 100644
--- a/src/providers/krb5/krb5_auth.c
+++ b/src/providers/krb5/krb5_auth.c
@@ -883,14 +883,16 @@ static void krb5_child_done(struct tevent_req *subreq)
if (kr->kpasswd_srv != NULL) {
/* ..which is unreachable by now.. */
if (msg_status == PAM_AUTHTOK_LOCK_BUSY) {
- fo_set_port_status(kr->kpasswd_srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be_ctx,
+ kr->kpasswd_srv, PORT_NOT_WORKING);
/* ..try to resolve next kpasswd server */
if (krb5_next_kpasswd(req) == NULL) {
tevent_req_error(req, ENOMEM);
}
return;
} else {
- fo_set_port_status(kr->kpasswd_srv, PORT_WORKING);
+ be_fo_set_port_status(state->be_ctx,
+ kr->kpasswd_srv, PORT_WORKING);
}
}
@@ -900,7 +902,7 @@ static void krb5_child_done(struct tevent_req *subreq)
if (msg_status == PAM_AUTHINFO_UNAVAIL ||
(kr->kpasswd_srv == NULL && msg_status == PAM_AUTHTOK_LOCK_BUSY)) {
if (kr->srv != NULL) {
- fo_set_port_status(kr->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be_ctx, kr->srv, PORT_NOT_WORKING);
/* ..try to resolve next KDC */
if (krb5_next_kdc(req) == NULL) {
tevent_req_error(req, ENOMEM);
@@ -908,7 +910,7 @@ static void krb5_child_done(struct tevent_req *subreq)
return;
}
} else if (kr->srv != NULL) {
- fo_set_port_status(kr->srv, PORT_WORKING);
+ be_fo_set_port_status(state->be_ctx, kr->srv, PORT_WORKING);
}
/* Now only a successful authentication or password change is left.
@@ -971,17 +973,20 @@ static struct tevent_req *krb5_next_server(struct tevent_req *req)
switch (pd->cmd) {
case SSS_PAM_AUTHENTICATE:
case SSS_CMD_RENEW:
- fo_set_port_status(state->kr->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be_ctx,
+ state->kr->srv, PORT_NOT_WORKING);
next_req = krb5_next_kdc(req);
break;
case SSS_PAM_CHAUTHTOK:
case SSS_PAM_CHAUTHTOK_PRELIM:
if (state->kr->kpasswd_srv) {
- fo_set_port_status(state->kr->kpasswd_srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be_ctx,
+ state->kr->kpasswd_srv, PORT_NOT_WORKING);
next_req = krb5_next_kpasswd(req);
break;
} else {
- fo_set_port_status(state->kr->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be_ctx,
+ state->kr->srv, PORT_NOT_WORKING);
next_req = krb5_next_kdc(req);
break;
}
diff --git a/src/providers/ldap/ldap_auth.c b/src/providers/ldap/ldap_auth.c
index 170a34b9..8b6173e1 100644
--- a/src/providers/ldap/ldap_auth.c
+++ b/src/providers/ldap/ldap_auth.c
@@ -588,7 +588,8 @@ static void auth_connect_done(struct tevent_req *subreq)
if (ret) {
if (state->srv) {
/* mark this server as bad if connection failed */
- fo_set_port_status(state->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->ctx->be,
+ state->srv, PORT_NOT_WORKING);
}
if (ret == ETIMEDOUT) {
if (auth_get_server(req) == NULL) {
@@ -600,7 +601,7 @@ static void auth_connect_done(struct tevent_req *subreq)
tevent_req_error(req, ret);
return;
} else if (state->srv) {
- fo_set_port_status(state->srv, PORT_WORKING);
+ be_fo_set_port_status(state->ctx->be, state->srv, PORT_WORKING);
}
ret = get_user_dn(state, state->ctx->be->sysdb, state->ctx->opts,
diff --git a/src/providers/ldap/sdap_async_connection.c b/src/providers/ldap/sdap_async_connection.c
index ca1cd6e1..22aa4f91 100644
--- a/src/providers/ldap/sdap_async_connection.c
+++ b/src/providers/ldap/sdap_async_connection.c
@@ -962,7 +962,7 @@ static void sdap_kinit_done(struct tevent_req *subreq)
return;
} else {
if (kerr == KRB5_KDC_UNREACH) {
- fo_set_port_status(state->kdc_srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be, state->kdc_srv, PORT_NOT_WORKING);
nextreq = sdap_kinit_next_kdc(req);
if (!nextreq) {
tevent_req_error(req, ENOMEM);
@@ -1191,7 +1191,6 @@ struct tevent_req *sdap_cli_connect_send(TALLOC_CTX *memctx,
state->be = be;
state->srv = NULL;
state->srv_opts = NULL;
- state->be = be;
state->use_rootdse = !skip_rootdse;
state->force_tls = force_tls;
state->do_auth = !skip_auth;
@@ -1290,7 +1289,7 @@ static void sdap_cli_connect_done(struct tevent_req *subreq)
talloc_zfree(subreq);
if (ret) {
/* retry another server */
- fo_set_port_status(state->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be, state->srv, PORT_NOT_WORKING);
ret = sdap_cli_resolve_next(req);
if (ret != EOK) {
tevent_req_error(req, ret);
@@ -1364,7 +1363,7 @@ static void sdap_cli_rootdse_done(struct tevent_req *subreq)
talloc_zfree(subreq);
if (ret) {
if (ret == ETIMEDOUT) { /* retry another server */
- fo_set_port_status(state->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be, state->srv, PORT_NOT_WORKING);
ret = sdap_cli_resolve_next(req);
if (ret != EOK) {
tevent_req_error(req, ret);
@@ -1483,7 +1482,7 @@ static void sdap_cli_kinit_done(struct tevent_req *subreq)
talloc_zfree(subreq);
if (ret) {
if (ret == ETIMEDOUT) { /* child timed out, retry another server */
- fo_set_port_status(state->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be, state->srv, PORT_NOT_WORKING);
ret = sdap_cli_resolve_next(req);
if (ret != EOK) {
tevent_req_error(req, ret);
@@ -1585,7 +1584,7 @@ int sdap_cli_connect_recv(struct tevent_req *req,
if (tevent_req_is_error(req, &tstate, &err)) {
/* mark the server as bad if connection failed */
if (state->srv) {
- fo_set_port_status(state->srv, PORT_NOT_WORKING);
+ be_fo_set_port_status(state->be, state->srv, PORT_NOT_WORKING);
} else {
if (can_retry) {
*can_retry = false;
@@ -1597,7 +1596,7 @@ int sdap_cli_connect_recv(struct tevent_req *req,
}
return EIO;
} else if (state->srv) {
- fo_set_port_status(state->srv, PORT_WORKING);
+ be_fo_set_port_status(state->be, state->srv, PORT_WORKING);
}
if (gsh) {
generated by cgit (git 2.34.1) at 2024-11-18 04:21:02 +0000