Adding app version display

Change-Id: I366d915a05f58c5653de89c1c59ebd180904e080
Signed-off-by: Deepak S <deepak.s@linux.intel.com>

3 files changed, 72 insertions, 10 deletions

diff --git a/VNFs/UDP_Replay/main.c b/VNFs/UDP_Replay/main.c
index 2830aa41..2e1638e4 100644
--- a/VNFs/UDP_Replay/main.c
+++ b/VNFs/UDP_Replay/main.c
@@ -88,6 +88,7 @@ performance of the solution should be sufficient for testing the UDP NAT perform
 #include <lib_arp.h>
 #include "l2_proto.h"
 #include "interface.h"
+#include "version.h"
 #include "l3fwd_common.h"
 #include "l3fwd_lpm4.h"
 #include "l3fwd_lpm6.h"
@@ -2121,6 +2122,7 @@ print_usage(const char *prgname)
 		"  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
 		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 		"  -P : enable promiscuous mode\n"
+		"  -v version: display app version\n"
 		"  --config (port,queue,lcore): rx queues configuration\n"
 		"  --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
 		"  --no-numa: optional, disable numa awareness\n"
@@ -2294,6 +2296,7 @@ parse_eth_dest(const char *optarg)
 #define CMD_LINE_OPT_NO_HW_CSUM "no-hw-csum"
 #define CMD_LINE_OPT_IPV6 "ipv6"
 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
+#define CMD_LINE_OPT_VERSION "version"
 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 
 /* Parse the argument given in the command line of the application */
@@ -2302,7 +2305,7 @@ parse_args(int argc, char **argv)
 {
 	int opt, ret;
 	char **argvopt;
-	int option_index;
+	int option_index, v_present = 0;
 	char *prgname = argv[0];
 	static struct option lgopts[] = {
 		{CMD_LINE_OPT_CONFIG, 1, 0, 0},
@@ -2311,13 +2314,14 @@ parse_args(int argc, char **argv)
 		{CMD_LINE_OPT_NO_HW_CSUM, 0, 0, 0},
 		{CMD_LINE_OPT_IPV6, 0, 0, 0},
 		{CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
+		{CMD_LINE_OPT_VERSION, 0, 0, 0},
 		{CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
 		{NULL, 0, 0, 0}
 	};
 
 	argvopt = argv;
 
-	while ((opt = getopt_long(argc, argvopt, "s:p:P",
+	while ((opt = getopt_long(argc, argvopt, "v:s:p:P",
 				lgopts, &option_index)) != EOF) {
 
 		switch (opt) {
@@ -2378,6 +2382,15 @@ parse_args(int argc, char **argv)
 			}
 #endif
 
+			if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_VERSION,
+				sizeof (CMD_LINE_OPT_VERSION))) {
+			  if (v_present)
+				  rte_panic("Error: VERSION is provided more than once\n");
+			  v_present = 1;
+			  printf("Version: %s\n", VERSION_STR);
+			  exit(0);
+      }
+
 			if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_ENABLE_JUMBO,
 				sizeof (CMD_LINE_OPT_ENABLE_JUMBO))) {
 				struct option lenopts = {"max-pkt-len", required_argument, 0, 0};
@@ -2745,6 +2758,11 @@ main(int argc, char **argv)
 	uint32_t size;
 	struct pipeline_params *params;
 
+	/* parse application arguments (after the EAL ones) */
+	ret = parse_args(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Invalid UDP_Replay parameters\n");
+
 	/* init EAL */
 	ret = rte_eal_init(argc, argv);
 	if (ret < 0)
@@ -2752,10 +2770,6 @@ main(int argc, char **argv)
 	argc -= ret;
 	argv += ret;
 	timer_lcore = rte_lcore_id();
-	/* parse application arguments (after the EAL ones) */
-	ret = parse_args(argc, argv);
-	if (ret < 0)
-		rte_exit(EXIT_FAILURE, "Invalid UDP_Replay parameters\n");
 
 	if (check_lcore_params() < 0)
 		rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
diff --git a/common/vnf_common/config_parse.c b/common/vnf_common/config_parse.c
index eeb547e6..48921f46 100644
--- a/common/vnf_common/config_parse.c
+++ b/common/vnf_common/config_parse.c
@@ -30,6 +30,7 @@
 #include <rte_string_fns.h>
 
 #include "app.h"
+#include "version.h"
 #include "parser.h"
 
 /**
@@ -201,8 +202,8 @@ struct app_pipeline_params default_pipeline_params = {
 };
 
 static const char app_usage[] =
-	"Usage: %s [-f CONFIG_FILE] [-s SCRIPT_FILE] [-p PORT_MASK] "
-	"[-l LOG_LEVEL] [--preproc PREPROCESSOR] [--preproc-args ARGS]\n"
+	"Usage: %s [--version] [-f CONFIG_FILE] [-s SCRIPT_FILE] [-p PORT_MASK] "
+	"[-l LOG_LEVEL] [--disable-hw-csum] [--preproc PREPROCESSOR] [--preproc-args ARGS]\n"
 	"\n"
 	"Arguments:\n"
 	"\t-f CONFIG_FILE: Default config file is %s\n"
@@ -210,6 +211,7 @@ static const char app_usage[] =
 		"config file when not provided)\n"
 	"\t-s SCRIPT_FILE: No CLI script file is run when not specified\n"
 	"\t-l LOG_LEVEL: 0 = NONE, 1 = HIGH PRIO (default), 2 = LOW PRIO\n"
+	"\t--version application version\n"
 	"\t--disable-hw-csum Disable TCP/UDP HW checksum\n"
 	"\t--preproc PREPROCESSOR: Configuration file pre-processor\n"
 	"\t--preproc-args ARGS: Arguments to be passed to pre-processor\n"
@@ -3231,7 +3233,7 @@ app_config_args(struct app_params *app, int argc, char **argv)
 {
 	const char *optname;
 	int opt, option_index;
-	int f_present, s_present, p_present, l_present;
+	int f_present, s_present, p_present, l_present, v_present;
 	int preproc_present, preproc_params_present, disable_csum_present;
 	int hwlb_present;
 	int flow_dir_present;
@@ -3243,6 +3245,7 @@ app_config_args(struct app_params *app, int argc, char **argv)
 		{ "preproc-args", 1, 0, 0 },
 		{ "hwlb", 1, 0, 0 },
 		{ "flow_dir", 0, 0, 0 },
+		{ "version", 0, 0, 0 },
 		{ NULL,  0, 0, 0 }
 	};
 
@@ -3252,6 +3255,7 @@ app_config_args(struct app_params *app, int argc, char **argv)
 	f_present = 0;
 	s_present = 0;
 	p_present = 0;
+	v_present = 0;
 	l_present = 0;
 	disable_csum_present = 0;
 	preproc_present = 0;
@@ -3261,7 +3265,7 @@ app_config_args(struct app_params *app, int argc, char **argv)
 	flow_dir_present = 0;
 
 
-	while ((opt = getopt_long(argc, argv, "f:s:p:l:", lgopts,
+	while ((opt = getopt_long(argc, argv, "f:v:s:p:l:", lgopts,
 			&option_index)) != EOF)
 		switch (opt) {
 		case 'f':
@@ -3332,6 +3336,15 @@ app_config_args(struct app_params *app, int argc, char **argv)
 		case 0:
 			optname = lgopts[option_index].name;
 
+			if (strcmp(optname, "version") == 0) {
+			  if (v_present)
+				  rte_panic("Error: VERSION is provided "
+					  "more than once\n");
+			   v_present = 1;
+			   printf("Version: %s\n", VERSION_STR);
+			   exit(0);
+			}
+
 			if (strcmp(optname, "hwlb") == 0) {
 				if (hwlb_present)
 					rte_panic("Error: hwlb argument "
diff --git a/common/vnf_common/version.h b/common/vnf_common/version.h
new file mode 100644
index 00000000..00d8f458
--- /dev/null
+++ b/common/vnf_common/version.h
@@ -0,0 +1,35 @@
+/*
+// Copyright (c) 2017 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#ifndef __INCLUDE_VER_H__
+#define __INCLUDE_VER_H__
+
+#define STRINGIFY(s) #s
+#define SSTR(s) STRINGIFY(s)
+
+/* PROGRAM_NAME defined through Makefile */
+#define VERSION_MAJOR 0
+#define VERSION_MINOR 39
+#define VERSION_REV   0
+
+#if VERSION_REV > 0
+#define VERSION_STR "v" SSTR(VERSION_MAJOR) "." SSTR(VERSION_MINOR) "." SSTR(VERSION_REV)
+#else
+#define VERSION_STR "v" SSTR(VERSION_MAJOR) "." SSTR(VERSION_MINOR)
+#endif
+
+
+#endif