[master] f24d649 Add back SLT_BackendOpen and give it both endpoints.

[Poul-Henning Kamp]

commit f24d649b00b61199f452c845142392d14d2d5c52
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed Feb 25 10:56:22 2015 +0000

    Add back SLT_BackendOpen and give it both endpoints.

diff --git a/bin/varnishd/cache/cache_backend.c b/bin/varnishd/cache/cache_backend.c
index 3e1b1bf..c2cf666 100644
--- a/bin/varnishd/cache/cache_backend.c
+++ b/bin/varnishd/cache/cache_backend.c
@@ -42,6 +42,7 @@
 #include "cache_backend.h"
 #include "cache_director.h"
 #include "vrt.h"
+#include "vtcp.h"
 
 #define FIND_TMO(tmx, dst, bo, be)					\
 	do {								\
@@ -85,6 +86,8 @@ vbe_dir_getfd(const struct director *d, struct busyobj *bo)
 	struct backend *bp;
 	double tmod;
 	const struct vrt_backend *vrt;
+	char abuf1[VTCP_ADDRBUFSIZE], abuf2[VTCP_ADDRBUFSIZE];
+	char pbuf1[VTCP_PORTBUFSIZE], pbuf2[VTCP_PORTBUFSIZE];
 
 	CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
 	CHECK_OBJ_NOTNULL(d, DIRECTOR_MAGIC);
@@ -123,6 +126,11 @@ vbe_dir_getfd(const struct director *d, struct busyobj *bo)
 	bp->vsc->conn++;
 	Lck_Unlock(&bp->mtx);
 
+	VTCP_myname(vc->fd, abuf1, sizeof abuf1, pbuf1, sizeof pbuf1);
+	VTCP_hisname(vc->fd, abuf2, sizeof abuf2, pbuf2, sizeof pbuf2);
+	VSLb(bo->vsl, SLT_BackendOpen, "%d %s %s %s %s %s",
+	    vc->fd, bp->display_name, abuf2, pbuf2, abuf1, pbuf1);
+
 	vc->backend->vsc->req++;
 	if (bo->htc == NULL)
 		bo->htc = WS_Alloc(bo->ws, sizeof *bo->htc);
diff --git a/include/tbl/vsl_tags.h b/include/tbl/vsl_tags.h
index 7dd918d..d8fc721 100644
--- a/include/tbl/vsl_tags.h
+++ b/include/tbl/vsl_tags.h
@@ -101,12 +101,14 @@ SLTM(SessClose, 0, "Client connection closed",
 SLTM(BackendOpen, 0, "Backend connection opened",
 	"Logged when a new backend connection is opened.\n\n"
 	"The format is::\n\n"
-	"\t%d %s %s %s\n"
-	"\t|  |  |  |\n"
-	"\t|  |  |  +- Remote port\n"
-	"\t|  |  +---- Remote address\n"
-	"\t|  +------- Backend display name\n"
-	"\t+---------- Connection file descriptor\n"
+	"\t%d %s %s %s %s %s\n"
+	"\t|  |  |  |  |  |\n"
+	"\t|  |  |  |  |  +- Local port\n"
+	"\t|  |  |  |  +---- Local address\n"
+	"\t|  |  |  +------- Remote port\n"
+	"\t|  |  +---------- Remote address\n"
+	"\t|  +------------- Backend display name\n"
+	"\t+---------------- Connection file descriptor\n"
 	"\n"
 )