# HG changeset patch
# User Roman Arutyunyan <arut@nginx.com>
# Date 1470936143 -10800
# Node ID 38143d1abdec9112c629be39cf675c1fd7c26ccf
# Parent  e4c1f5b3286887a5d8851a1686c9c3ad873eb7ee
Stream: the $status variable.

The stream session status is one of the following:

200 - normal completion
403 - access forbidden
500 - internal server error
502 - bad gateway
503 - limit conn

diff --git a/src/stream/ngx_stream.h b/src/stream/ngx_stream.h
--- a/src/stream/ngx_stream.h
+++ b/src/stream/ngx_stream.h
@@ -26,6 +26,13 @@ typedef struct ngx_stream_session_s  ngx
 #include <ngx_stream_upstream_round_robin.h>
 
 
+#define NGX_STREAM_OK                        200
+#define NGX_STREAM_FORBIDDEN                 403
+#define NGX_STREAM_INTERNAL_SERVER_ERROR     500
+#define NGX_STREAM_BAD_GATEWAY               502
+#define NGX_STREAM_SERVICE_UNAVAILABLE       503
+
+
 typedef struct {
     void                         **main_conf;
     void                         **srv_conf;
@@ -173,6 +180,8 @@ struct ngx_stream_session_s {
     int                           *captures;
     u_char                        *captures_data;
 #endif
+
+    ngx_uint_t                     status;
 };
 
 
@@ -223,7 +232,7 @@ typedef struct {
 
 
 void ngx_stream_init_connection(ngx_connection_t *c);
-void ngx_stream_close_connection(ngx_connection_t *c);
+void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc);
 
 
 extern ngx_module_t  ngx_stream_module;
diff --git a/src/stream/ngx_stream_handler.c b/src/stream/ngx_stream_handler.c
--- a/src/stream/ngx_stream_handler.c
+++ b/src/stream/ngx_stream_handler.c
@@ -11,6 +11,7 @@
 #include <ngx_stream.h>
 
 
+static void ngx_stream_close_connection(ngx_connection_t *c);
 static u_char *ngx_stream_log_error(ngx_log_t *log, u_char *buf, size_t len);
 static void ngx_stream_init_session(ngx_connection_t *c);
 
@@ -166,8 +167,13 @@ ngx_stream_init_connection(ngx_connectio
     if (cmcf->limit_conn_handler) {
         rc = cmcf->limit_conn_handler(s);
 
-        if (rc != NGX_DECLINED) {
-            ngx_stream_close_connection(c);
+        if (rc == NGX_ERROR) {
+            ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
+            return;
+        }
+
+        if (rc == NGX_ABORT) {
+            ngx_stream_finalize_session(s, NGX_STREAM_SERVICE_UNAVAILABLE);
             return;
         }
     }
@@ -175,8 +181,13 @@ ngx_stream_init_connection(ngx_connectio
     if (cmcf->access_handler) {
         rc = cmcf->access_handler(s);
 
-        if (rc != NGX_OK && rc != NGX_DECLINED) {
-            ngx_stream_close_connection(c);
+        if (rc == NGX_ERROR) {
+            ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
+            return;
+        }
+
+        if (rc == NGX_ABORT) {
+            ngx_stream_finalize_session(s, NGX_STREAM_FORBIDDEN);
             return;
         }
     }
@@ -194,7 +205,7 @@ ngx_stream_init_connection(ngx_connectio
         {
             ngx_connection_error(c, ngx_socket_errno,
                                  "setsockopt(TCP_NODELAY) failed");
-            ngx_stream_close_connection(c);
+            ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -215,7 +226,7 @@ ngx_stream_init_connection(ngx_connectio
             ngx_log_error(NGX_LOG_ERR, c->log, 0,
                           "no \"ssl_certificate\" is defined "
                           "in server listening on SSL port");
-            ngx_stream_close_connection(c);
+            ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -242,7 +253,7 @@ ngx_stream_init_session(ngx_connection_t
 
     s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_stream_max_module);
     if (s->ctx == NULL) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -258,15 +269,14 @@ ngx_stream_ssl_init_connection(ngx_ssl_t
     ngx_stream_session_t   *s;
     ngx_stream_ssl_conf_t  *sslcf;
 
+    s = c->data;
+
     if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
     if (ngx_ssl_handshake(c) == NGX_AGAIN) {
-
-        s = c->data;
-
         sslcf = ngx_stream_get_module_srv_conf(s, ngx_stream_ssl_module);
 
         ngx_add_timer(c->read, sslcf->handshake_timeout);
@@ -284,7 +294,7 @@ static void
 ngx_stream_ssl_handshake_handler(ngx_connection_t *c)
 {
     if (!c->ssl->handshaked) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(c->data, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -299,6 +309,18 @@ ngx_stream_ssl_handshake_handler(ngx_con
 
 
 void
+ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc)
+{
+    ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
+                   "finalize stream session: %i", rc);
+
+    s->status = rc;
+
+    ngx_stream_close_connection(s->connection);
+}
+
+
+static void
 ngx_stream_close_connection(ngx_connection_t *c)
 {
     ngx_pool_t  *pool;
diff --git a/src/stream/ngx_stream_proxy_module.c b/src/stream/ngx_stream_proxy_module.c
--- a/src/stream/ngx_stream_proxy_module.c
+++ b/src/stream/ngx_stream_proxy_module.c
@@ -73,7 +73,7 @@ static ngx_int_t ngx_stream_proxy_test_c
 static void ngx_stream_proxy_process(ngx_stream_session_t *s,
     ngx_uint_t from_upstream, ngx_uint_t do_write);
 static void ngx_stream_proxy_next_upstream(ngx_stream_session_t *s);
-static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc);
+static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_uint_t rc);
 static u_char *ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf,
     size_t len);
 
@@ -368,7 +368,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
 
     u = ngx_pcalloc(c->pool, sizeof(ngx_stream_upstream_t));
     if (u == NULL) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -380,7 +380,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
     u->peer.log_error = NGX_ERROR_ERR;
 
     if (ngx_stream_proxy_set_local(s, u, pscf->local) != NGX_OK) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -395,7 +395,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
     if (c->type == SOCK_STREAM) {
         p = ngx_pnalloc(c->pool, pscf->buffer_size);
         if (p == NULL) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -418,7 +418,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
             p = ngx_proxy_protocol_write(c, u->downstream_buf.last,
                                          u->downstream_buf.end);
             if (p == NULL) {
-                ngx_stream_proxy_finalize(s, NGX_ERROR);
+                ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
                 return;
             }
 
@@ -433,7 +433,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
 
     if (pscf->upstream_value) {
         if (ngx_stream_proxy_eval(s, pscf) != NGX_OK) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
     }
@@ -457,14 +457,14 @@ ngx_stream_proxy_handler(ngx_stream_sess
             {
                 ngx_log_error(NGX_LOG_ERR, c->log, 0,
                               "no port in upstream \"%V\"", host);
-                ngx_stream_proxy_finalize(s, NGX_ERROR);
+                ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
                 return;
             }
 
             if (ngx_stream_upstream_create_round_robin_peer(s, u->resolved)
                 != NGX_OK)
             {
-                ngx_stream_proxy_finalize(s, NGX_ERROR);
+                ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
                 return;
             }
 
@@ -493,7 +493,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
         if (u->resolved->port == 0) {
             ngx_log_error(NGX_LOG_ERR, c->log, 0,
                           "no port in upstream \"%V\"", host);
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -503,14 +503,14 @@ ngx_stream_proxy_handler(ngx_stream_sess
 
         ctx = ngx_resolve_start(cscf->resolver, &temp);
         if (ctx == NULL) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
         if (ctx == NGX_NO_RESOLVER) {
             ngx_log_error(NGX_LOG_ERR, c->log, 0,
                           "no resolver defined to resolve %V", host);
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -523,7 +523,7 @@ ngx_stream_proxy_handler(ngx_stream_sess
 
         if (ngx_resolve_name(ctx) != NGX_OK) {
             u->resolved->ctx = NULL;
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -534,7 +534,7 @@ found:
 
     if (uscf == NULL) {
         ngx_log_error(NGX_LOG_ALERT, c->log, 0, "no upstream configuration");
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -543,7 +543,7 @@ found:
 #endif
 
     if (uscf->peer.init(s, uscf) != NGX_OK) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -682,13 +682,13 @@ ngx_stream_proxy_connect(ngx_stream_sess
     ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, "proxy connect: %i", rc);
 
     if (rc == NGX_ERROR) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
     if (rc == NGX_BUSY) {
         ngx_log_error(NGX_LOG_ERR, c->log, 0, "no live upstreams");
-        ngx_stream_proxy_finalize(s, NGX_DECLINED);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_BAD_GATEWAY);
         return;
     }
 
@@ -801,7 +801,7 @@ ngx_stream_proxy_init_upstream(ngx_strea
     if (u->upstream_buf.start == NULL) {
         p = ngx_pnalloc(c->pool, pscf->buffer_size);
         if (p == NULL) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -851,7 +851,7 @@ ngx_stream_proxy_send_proxy_protocol(ngx
 
     p = ngx_proxy_protocol_write(c, buf, buf + NGX_PROXY_PROTOCOL_MAX_HEADER);
     if (p == NULL) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return NGX_ERROR;
     }
 
@@ -865,7 +865,7 @@ ngx_stream_proxy_send_proxy_protocol(ngx
 
     if (n == NGX_AGAIN) {
         if (ngx_handle_write_event(pc->write, 0) != NGX_OK) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return NGX_ERROR;
         }
 
@@ -879,7 +879,7 @@ ngx_stream_proxy_send_proxy_protocol(ngx
     }
 
     if (n == NGX_ERROR) {
-        ngx_stream_proxy_finalize(s, NGX_DECLINED);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_OK);
         return NGX_ERROR;
     }
 
@@ -895,7 +895,7 @@ ngx_stream_proxy_send_proxy_protocol(ngx
         ngx_log_error(NGX_LOG_ERR, c->log, 0,
                       "could not send PROXY protocol header at once");
 
-        ngx_stream_proxy_finalize(s, NGX_DECLINED);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
 
         return NGX_ERROR;
     }
@@ -947,20 +947,20 @@ ngx_stream_proxy_ssl_init_connection(ngx
     if (ngx_ssl_create_connection(pscf->ssl, pc, NGX_SSL_BUFFER|NGX_SSL_CLIENT)
         != NGX_OK)
     {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
     if (pscf->ssl_server_name || pscf->ssl_verify) {
         if (ngx_stream_proxy_ssl_name(s) != NGX_OK) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
     }
 
     if (pscf->ssl_session_reuse) {
         if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
     }
@@ -1166,7 +1166,7 @@ ngx_stream_proxy_resolve_handler(ngx_res
                       &ctx->name, ctx->state,
                       ngx_resolver_strerror(ctx->state));
 
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -1192,7 +1192,7 @@ ngx_stream_proxy_resolve_handler(ngx_res
 #endif
 
     if (ngx_stream_upstream_create_round_robin_peer(s, ur) != NGX_OK) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -1245,7 +1245,8 @@ ngx_stream_proxy_process_connection(ngx_
 
             if (!ev->ready) {
                 if (ngx_handle_read_event(ev, 0) != NGX_OK) {
-                    ngx_stream_proxy_finalize(s, NGX_ERROR);
+                    ngx_stream_proxy_finalize(s,
+                                              NGX_STREAM_INTERNAL_SERVER_ERROR);
                     return;
                 }
 
@@ -1279,7 +1280,7 @@ ngx_stream_proxy_process_connection(ngx_
             }
 
             ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out");
-            ngx_stream_proxy_finalize(s, NGX_DECLINED);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_OK);
             return;
         }
 
@@ -1289,7 +1290,7 @@ ngx_stream_proxy_process_connection(ngx_
                        "stream connection delayed");
 
         if (ngx_handle_read_event(ev, 0) != NGX_OK) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         }
 
         return;
@@ -1407,7 +1408,7 @@ ngx_stream_proxy_process(ngx_stream_sess
 
         c->log->handler = handler;
 
-        ngx_stream_proxy_finalize(s, NGX_OK);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_OK);
         return;
     }
 
@@ -1449,7 +1450,7 @@ ngx_stream_proxy_process(ngx_stream_sess
                         return;
                     }
 
-                    ngx_stream_proxy_finalize(s, NGX_DECLINED);
+                    ngx_stream_proxy_finalize(s, NGX_STREAM_OK);
                     return;
                 }
 
@@ -1540,20 +1541,20 @@ ngx_stream_proxy_process(ngx_stream_sess
 
         c->log->handler = handler;
 
-        ngx_stream_proxy_finalize(s, NGX_OK);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_OK);
         return;
     }
 
     flags = src->read->eof ? NGX_CLOSE_EVENT : 0;
 
     if (!src->shared && ngx_handle_read_event(src->read, flags) != NGX_OK) {
-        ngx_stream_proxy_finalize(s, NGX_ERROR);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
     if (dst) {
         if (!dst->shared && ngx_handle_write_event(dst->write, 0) != NGX_OK) {
-            ngx_stream_proxy_finalize(s, NGX_ERROR);
+            ngx_stream_proxy_finalize(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
             return;
         }
 
@@ -1593,7 +1594,7 @@ ngx_stream_proxy_next_upstream(ngx_strea
         || !pscf->next_upstream
         || (timeout && ngx_current_msec - u->peer.start_time >= timeout))
     {
-        ngx_stream_proxy_finalize(s, NGX_DECLINED);
+        ngx_stream_proxy_finalize(s, NGX_STREAM_BAD_GATEWAY);
         return;
     }
 
@@ -1621,7 +1622,7 @@ ngx_stream_proxy_next_upstream(ngx_strea
 
 
 static void
-ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc)
+ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_uint_t rc)
 {
     ngx_connection_t       *pc;
     ngx_stream_upstream_t  *u;
@@ -1664,7 +1665,7 @@ ngx_stream_proxy_finalize(ngx_stream_ses
 
 noupstream:
 
-    ngx_stream_close_connection(s->connection);
+    ngx_stream_finalize_session(s, rc);
 }
 
 
diff --git a/src/stream/ngx_stream_return_module.c b/src/stream/ngx_stream_return_module.c
--- a/src/stream/ngx_stream_return_module.c
+++ b/src/stream/ngx_stream_return_module.c
@@ -83,7 +83,7 @@ ngx_stream_return_handler(ngx_stream_ses
     rscf = ngx_stream_get_module_srv_conf(s, ngx_stream_return_module);
 
     if (ngx_stream_complex_value(s, &rscf->text, &text) != NGX_OK) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -91,13 +91,13 @@ ngx_stream_return_handler(ngx_stream_ses
                    "stream return text: \"%V\"", &text);
 
     if (text.len == 0) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_OK);
         return;
     }
 
     ctx = ngx_pcalloc(c->pool, sizeof(ngx_stream_return_ctx_t));
     if (ctx == NULL) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
@@ -126,7 +126,7 @@ ngx_stream_return_write_handler(ngx_even
 
     if (ev->timedout) {
         ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out");
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_OK);
         return;
     }
 
@@ -137,7 +137,7 @@ ngx_stream_return_write_handler(ngx_even
 
         n = c->send(c, b->pos, b->last - b->pos);
         if (n == NGX_ERROR) {
-            ngx_stream_close_connection(c);
+            ngx_stream_finalize_session(s, NGX_STREAM_OK);
             return;
         }
 
@@ -145,14 +145,14 @@ ngx_stream_return_write_handler(ngx_even
             b->pos += n;
 
             if (b->pos == b->last) {
-                ngx_stream_close_connection(c);
+                ngx_stream_finalize_session(s, NGX_STREAM_OK);
                 return;
             }
         }
     }
 
     if (ngx_handle_write_event(ev, 0) != NGX_OK) {
-        ngx_stream_close_connection(c);
+        ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR);
         return;
     }
 
diff --git a/src/stream/ngx_stream_variables.c b/src/stream/ngx_stream_variables.c
--- a/src/stream/ngx_stream_variables.c
+++ b/src/stream/ngx_stream_variables.c
@@ -25,6 +25,8 @@ static ngx_int_t ngx_stream_variable_byt
     ngx_stream_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_stream_variable_session_time(ngx_stream_session_t *s,
     ngx_stream_variable_value_t *v, uintptr_t data);
+static ngx_int_t ngx_stream_variable_status(ngx_stream_session_t *s,
+    ngx_stream_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_stream_variable_connection(ngx_stream_session_t *s,
     ngx_stream_variable_value_t *v, uintptr_t data);
 
@@ -70,6 +72,9 @@ static ngx_stream_variable_t  ngx_stream
     { ngx_string("session_time"), NULL, ngx_stream_variable_session_time,
       0, NGX_STREAM_VAR_NOCACHEABLE, 0 },
 
+    { ngx_string("status"), NULL, ngx_stream_variable_status,
+      0, NGX_STREAM_VAR_NOCACHEABLE, 0 },
+
     { ngx_string("connection"), NULL,
       ngx_stream_variable_connection, 0, 0, 0 },
 
@@ -530,6 +535,24 @@ ngx_stream_variable_session_time(ngx_str
 
 
 static ngx_int_t
+ngx_stream_variable_status(ngx_stream_session_t *s,
+    ngx_stream_variable_value_t *v, uintptr_t data)
+{
+    v->data = ngx_pnalloc(s->connection->pool, NGX_INT_T_LEN);
+    if (v->data == NULL) {
+        return NGX_ERROR;
+    }
+
+    v->len = ngx_sprintf(v->data, "%03ui", s->status) - v->data;
+    v->valid = 1;
+    v->no_cacheable = 0;
+    v->not_found = 0;
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
 ngx_stream_variable_connection(ngx_stream_session_t *s,
     ngx_stream_variable_value_t *v, uintptr_t data)
 {