MEDIUM: session: implement the "use-server" directive
Sometimes it is desirable to forward a particular request to a specific
server without having to declare a dedicated backend for this server. This
can be achieved using the "use-server" rules. These rules are evaluated after
the "redirect" rules and before evaluating cookies, and they have precedence
on them. There may be as many "use-server" rules as desired. All of these
rules are evaluated in their declaration order, and the first one which
matches will assign the server.
diff --git a/include/types/buffers.h b/include/types/buffers.h
index 42e2a56..6280c4f 100644
--- a/include/types/buffers.h
+++ b/include/types/buffers.h
@@ -144,12 +144,13 @@
#define AN_REQ_SWITCHING_RULES 0x00000010 /* apply the switching rules */
#define AN_REQ_INSPECT_BE 0x00000020 /* inspect request contents in the backend */
#define AN_REQ_HTTP_PROCESS_BE 0x00000040 /* process the backend's HTTP part */
-#define AN_REQ_HTTP_INNER 0x00000080 /* inner processing of HTTP request */
-#define AN_REQ_HTTP_TARPIT 0x00000100 /* wait for end of HTTP tarpit */
-#define AN_REQ_HTTP_BODY 0x00000200 /* inspect HTTP request body */
-#define AN_REQ_STICKING_RULES 0x00000400 /* table persistence matching */
-#define AN_REQ_PRST_RDP_COOKIE 0x00000800 /* persistence on rdp cookie */
-#define AN_REQ_HTTP_XFER_BODY 0x00001000 /* forward request body */
+#define AN_REQ_SRV_RULES 0x00000080 /* use-server rules */
+#define AN_REQ_HTTP_INNER 0x00000100 /* inner processing of HTTP request */
+#define AN_REQ_HTTP_TARPIT 0x00000200 /* wait for end of HTTP tarpit */
+#define AN_REQ_HTTP_BODY 0x00000400 /* inspect HTTP request body */
+#define AN_REQ_STICKING_RULES 0x00000800 /* table persistence matching */
+#define AN_REQ_PRST_RDP_COOKIE 0x00001000 /* persistence on rdp cookie */
+#define AN_REQ_HTTP_XFER_BODY 0x00002000 /* forward request body */
/* response analysers */
#define AN_RES_INSPECT 0x00010000 /* content inspection */
diff --git a/include/types/proxy.h b/include/types/proxy.h
index 26cdfe4..d69a914 100644
--- a/include/types/proxy.h
+++ b/include/types/proxy.h
@@ -205,6 +205,7 @@
struct list persist_rules; /* 'force-persist' and 'ignore-persist' rules (chained) */
struct list sticking_rules; /* content sticking rules (chained) */
struct list storersp_rules; /* content store response rules (chained) */
+ struct list server_rules; /* server switching rules (chained) */
struct { /* TCP request processing */
unsigned int inspect_delay; /* inspection delay */
struct list inspect_rules; /* inspection rules */
@@ -350,6 +351,15 @@
} be;
};
+struct server_rule {
+ struct list list; /* list linked to from the proxy */
+ struct acl_cond *cond; /* acl condition to meet */
+ union {
+ struct server *ptr; /* target server */
+ char *name; /* target server name during config parsing */
+ } srv;
+};
+
struct persist_rule {
struct list list; /* list linked to from the proxy */
struct acl_cond *cond; /* acl condition to meet */