MEDIUM: log-format: backend source address %Bi %Bp

%Bi return the backend source IP
%Bp return the backend source port

Add a function pointer in logformat_type to do additional configuration
during the log-format variable parsing.

include/types/log.h

@@ -44,6 +44,8 @@ enum {
 	LOG_GLOBAL,
 	LOG_CLIENTIP,
 	LOG_CLIENTPORT,
+	LOG_SOURCEPORT,
+	LOG_SOURCEIP,
 	LOG_DATE,
 	LOG_DATEGMT,
 	LOG_MS,

include/types/proxy.h

@@ -138,7 +138,9 @@ enum {
 #define PR_O2_NODELAY   0x00020000      /* fully interactive mode, never delay outgoing data */
 #define PR_O2_USE_PXHDR 0x00040000      /* use Proxy-Connection for proxy requests */
 #define PR_O2_CHK_SNDST 0x00080000      /* send the state of each server along with HTTP health checks */
-/* unused: 0x00100000 */
+
+#define PR_O2_SRC_ADDR	0x00100000	/* get the source ip and port for logs */
+
 #define PR_O2_FAKE_KA   0x00200000      /* pretend we do keep-alive with server eventhough we close */
 /* unused: 0x00400000 */
 #define PR_O2_EXP_NONE  0x00000000      /* http-check : no expect rule */

include/types/session.h

@@ -84,6 +84,7 @@
 #define SN_IGNORE_PRST	0x00080000	/* ignore persistence */
 #define SN_BE_TRACK_SC1 0x00100000	/* backend tracks stick-counter 1 */
 #define SN_BE_TRACK_SC2 0x00200000	/* backend tracks stick-counter 2 */
+#define SN_BCK_ADDR_SET 0x00400000 	/* set if the backend address has been filled */
 
 /* Termination sequence tracing.
  *

include/types/stream_interface.h

@@ -72,6 +72,7 @@ enum {
 	SI_FL_DONT_WAKE  = 0x0020,  /* resync in progress, don't wake up */
 	SI_FL_INDEP_STR  = 0x0040,  /* independant streams = don't update rex on write */
 	SI_FL_NOLINGER   = 0x0080,  /* may close without lingering. One-shot. */
+	SI_FL_SRC_ADDR   = 0x1000,  /* get the source ip/port with getsockname */
 };
 
 /* target types */