diff options
| -rw-r--r-- | src/confdb/confdb.h | 1 | ||||
| -rw-r--r-- | src/providers/data_provider_fo.c | 18 | ||||
| -rw-r--r-- | src/providers/fail_over.c | 46 | ||||
| -rw-r--r-- | src/providers/fail_over.h | 7 |
4 files changed, 67 insertions, 5 deletions
diff --git a/src/confdb/confdb.h b/src/confdb/confdb.h index e3f8ba3c..7cfc73d2 100644 --- a/src/confdb/confdb.h +++ b/src/confdb/confdb.h @@ -117,6 +117,7 @@ #define CONFDB_DOMAIN_FQ "use_fully_qualified_names" #define CONFDB_DOMAIN_ENTRY_CACHE_TIMEOUT "entry_cache_timeout" #define CONFDB_DOMAIN_RESOLV_TIMEOUT "dns_resolver_timeout" +#define CONFDB_DOMAIN_RESOLV_OP_TIMEOUT "dns_resolver_op_timeout" #define CONFDB_DOMAIN_DNS_DISCOVERY_NAME "dns_discovery_domain" #define CONFDB_DOMAIN_FAMILY_ORDER "lookup_family_order" #define CONFDB_DOMAIN_ACCOUNT_CACHE_EXPIRATION "account_cache_expiration" diff --git a/src/providers/data_provider_fo.c b/src/providers/data_provider_fo.c index 7a5c82c3..dd73e9d9 100644 --- a/src/providers/data_provider_fo.c +++ b/src/providers/data_provider_fo.c @@ -67,7 +67,14 @@ static int be_fo_get_options(struct be_ctx *ctx, { errno_t ret; - /* todo get timeout from configuration */ + ret = confdb_get_int(ctx->cdb, ctx, ctx->conf_path, + CONFDB_DOMAIN_RESOLV_TIMEOUT, + FO_DEFAULT_SVC_TIMEOUT, + &opts->service_resolv_timeout); + if (ret != EOK) { + return ret; + } + opts->retry_timeout = 30; opts->srv_retry_timeout = 14400; @@ -83,7 +90,7 @@ static int be_fo_get_options(struct be_ctx *ctx, int be_init_failover(struct be_ctx *ctx) { int ret; - int fo_timeout; + int resolv_timeout; struct fo_options fopts; if (ctx->be_fo != NULL) { @@ -96,13 +103,14 @@ int be_init_failover(struct be_ctx *ctx) } ret = confdb_get_int(ctx->cdb, ctx, ctx->conf_path, - CONFDB_DOMAIN_RESOLV_TIMEOUT, - RESOLV_DEFAULT_TIMEOUT, &fo_timeout); + CONFDB_DOMAIN_RESOLV_OP_TIMEOUT, + RESOLV_DEFAULT_TIMEOUT, + &resolv_timeout); if (ret != EOK) { return ret; } - ret = resolv_init(ctx, ctx->ev, fo_timeout, &ctx->be_fo->resolv); + ret = resolv_init(ctx, ctx->ev, resolv_timeout, &ctx->be_fo->resolv); if (ret != EOK) { talloc_zfree(ctx->be_fo); return ret; diff --git a/src/providers/fail_over.c b/src/providers/fail_over.c index 5cfc1a41..637b5b4d 100644 --- a/src/providers/fail_over.c +++ b/src/providers/fail_over.c @@ -141,6 +141,7 @@ fo_context_init(TALLOC_CTX *mem_ctx, struct fo_options *opts) ctx->opts->srv_retry_timeout = opts->srv_retry_timeout; ctx->opts->retry_timeout = opts->retry_timeout; ctx->opts->family_order = opts->family_order; + ctx->opts->service_resolv_timeout = opts->service_resolv_timeout; DEBUG(3, ("Created new fail over context, retry timeout is %d\n", ctx->opts->retry_timeout)); @@ -735,10 +736,13 @@ struct resolve_service_state { struct resolv_ctx *resolv; struct tevent_context *ev; + struct tevent_timer *timeout_handler; struct fo_ctx *fo_ctx; }; +static errno_t fo_resolve_service_activate_timeout(struct tevent_req *req, + struct tevent_context *ev, const unsigned long timeout_seconds); static void fo_resolve_service_cont(struct tevent_req *subreq); static void fo_resolve_service_done(struct tevent_req *subreq); static bool fo_resolve_service_server(struct tevent_req *req); @@ -777,6 +781,14 @@ fo_resolve_service_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, goto done; } + /* Activate per-service timeout handler */ + ret = fo_resolve_service_activate_timeout(req, ev, + ctx->opts->service_resolv_timeout); + if (ret != EOK) { + DEBUG(SSSDBG_OP_FAILURE, ("Could not set service timeout\n")); + goto done; + } + if (fo_is_srv_lookup(server)) { /* Don't know the server yet, must do a SRV lookup */ subreq = resolve_srv_send(state, ev, resolv, @@ -810,6 +822,40 @@ done: static void set_server_common_status(struct server_common *common, enum server_status status); +static void +fo_resolve_service_timeout(struct tevent_context *ev, + struct tevent_timer *te, + struct timeval tv, void *pvt) +{ + struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); + + DEBUG(SSSDBG_MINOR_FAILURE, ("Service resolving timeout reached\n")); + tevent_req_error(req, ETIMEDOUT); +} + +static errno_t +fo_resolve_service_activate_timeout(struct tevent_req *req, + struct tevent_context *ev, + const unsigned long timeout_seconds) +{ + struct timeval tv; + struct resolve_service_state *state = tevent_req_data(req, + struct resolve_service_state); + + tv = tevent_timeval_current(); + tv = tevent_timeval_add(&tv, timeout_seconds, 0); + state->timeout_handler = tevent_add_timer(ev, state, tv, + fo_resolve_service_timeout, req); + if (state->timeout_handler == NULL) { + DEBUG(SSSDBG_CRIT_FAILURE, ("tevent_add_timer failed.\n")); + return ENOMEM; + } + + DEBUG(SSSDBG_TRACE_INTERNAL, ("Resolve timeout set to %lu seconds\n", + timeout_seconds)); + return EOK; +} + /* SRV resolving finished, see if we got server to work with */ static void fo_resolve_service_cont(struct tevent_req *subreq) diff --git a/src/providers/fail_over.h b/src/providers/fail_over.h index 3ca6096c..fee64e82 100644 --- a/src/providers/fail_over.h +++ b/src/providers/fail_over.h @@ -33,6 +33,8 @@ #define FO_PROTO_TCP "tcp" #define FO_PROTO_UDP "udp" +#define FO_DEFAULT_SVC_TIMEOUT 10 + /* Some forward declarations that don't have to do anything with fail over. */ struct hostent; struct tevent_context; @@ -63,6 +65,10 @@ struct fo_server; * duration in seconds of how long a server or port will be considered * non-working after being marked as such. * + * The 'service_resolv_timeout' member specifies how long we wait for + * service resolution. When this timeout is reached, the resolve request + * is cancelled with an error + * * The 'srv_retry_timeout' member specifies how long a SRV lookup * is considered valid until we ask the server again. * @@ -72,6 +78,7 @@ struct fo_server; struct fo_options { time_t srv_retry_timeout; time_t retry_timeout; + int service_resolv_timeout; enum restrict_family family_order; }; |