MINOR: cfgparse: rename "rev@" prefix to "rhttp@"

'rev@' was used to specify a bind/server used with reverse HTTP
transport. This notation was deemed not explicit enough. Rename it
'rhttp@' instead.

doc/configuration.txt

@@ -4977,10 +4977,11 @@ bind /<path> [, ...] [param*]
                     - 'quic6@' -> address is resolved as IPv6 and protocol UDP
                       is used. The performance note for QUIC over IPv4 applies
                       as well.
-                    - 'rev@' -> used for reverse HTTP. Address must be a server
+                    - 'rhttp@' -> used for reverse HTTP. Address must be a
-                      with the format '<backend>/<server>'. The server will be
+                      server with the format '<backend>/<server>'. The server
-                      used to instantiate connections to a remote address. The
+                      will be used to instantiate connections to a remote
-                      listener will try to maintain 'maxconn' connections.
+                      address. The listener will try to maintain 'maxconn'
+                      connections.
 
                   You may want to reference some environment variables in the
                   address parameter, see section 2.3 about environment
@@ -11534,7 +11535,7 @@ server <name> <address>[:[port]] [param*]
                       one of them over the FD. The bind part will use the
                       received socket as the client FD. Should be used
                       carefully.
-                    - 'rev@'   -> custom address family for a passive server in
+                    - 'rhttp@' -> custom address family for a passive server in
                       HTTP reverse context.
               You may want to reference some environment variables in the
               address parameter, see section 2.3 about environment

include/haproxy/listener-t.h

@@ -208,7 +208,7 @@ struct bind_conf {
 	char *arg;                 /* argument passed to "bind" for better error reporting */
 	char *file;                /* file where the section appears */
 	int line;                  /* line where the section appears */
-	char *reverse_srvname;     /* name of server when using "rev@" address */
+	char *reverse_srvname;     /* name of server when using "rhttp@" address */
 	int reverse_nbconn;        /* count of connections to initiate in parallel */
 	__decl_thread(HA_RWLOCK_T sni_lock); /* lock the SNI trees during add/del operations */
 	struct thread_set thread_set; /* entire set of the allowed threads (0=no restriction) */

reg-tests/connection/reverse_connect_full.vtc

@@ -21,7 +21,7 @@ frontend pub
 	use_backend be-reverse
 
 backend be-reverse
-	server dev rev@
+	server dev rhttp@
 
 frontend priv
 	bind "fd@${priv}" proto h2
@@ -37,7 +37,7 @@ defaults
 	mode http
 
 frontend fe
-	bind "rev@be-pre-connect/srv" maxconn 1
+	bind "rhttp@be-pre-connect/srv" maxconn 1
 	use_backend be
 
 backend be-pre-connect

reg-tests/connection/reverse_server.vtc

@@ -18,7 +18,7 @@ frontend pub
 	use_backend be-reverse
 
 backend be-reverse
-	server dev rev@
+	server dev rhttp@
 
 frontend priv
 	bind "fd@${priv}" proto h2

reg-tests/connection/reverse_server_name.vtc

@@ -19,7 +19,7 @@ frontend pub
 	use_backend be-reverse
 
 backend be-reverse
-	server dev rev@ ssl sni hdr(x-name) verify none
+	server dev rhttp@ ssl sni hdr(x-name) verify none
 
 frontend priv
 	bind "fd@${priv}" ssl crt ${testdir}/common.pem verify required ca-verify-file ${testdir}/ca-auth.crt alpn h2

src/cfgparse.c

@@ -174,7 +174,7 @@ int str2listener(char *str, struct proxy *curproxy, struct bind_conf *bind_conf,
 				goto fail;
 			}
 
-			bind_conf->reverse_srvname = strdup(str + strlen("rev@"));
+			bind_conf->reverse_srvname = strdup(str + strlen("rhttp@"));
 			if (!bind_conf->reverse_srvname) {
 				memprintf(err, "Cannot allocate reverse HTTP bind.\n");
 				goto fail;

src/tools.c

@@ -1101,7 +1101,7 @@ struct sockaddr_storage *str2sa_range(const char *str, int *port, int *low, int
 		str2 += 9;
 		ss.ss_family = AF_CUST_SOCKPAIR;
 	}
-	else if (strncmp(str2, "rev@", 3) == 0) {
+	else if (strncmp(str2, "rhttp@", 3) == 0) {
 		str2 += 4;
 		ss.ss_family = AF_CUST_REV_SRV;
 	}