tqftpserv: Enable config file support in tqftpserv

Integrate configuration management via config file and
command-line arguments to customize server behavior.

This allows runtime configuration of key filesystem paths
including readonly_path, readwrite_path, firmware_base,
updates_dir, and temp_dir.

It also enables dynamic adjustment of the default log level,
supporting flexible deployment across platforms like Linux
and Android without requiring code changes.

Signed-off-by: Bhaskar Valaboju <[email protected]>

Author: quic-bhaskarv

tqftpserv.c

@@ -16,6 +16,7 @@
 #include "list.h"
 #include "translate.h"
 #include "logging.h"
+#include "config.h"
 
 #define MAX(x, y) ((x) > (y) ? (x) : (y))
 
@@ -603,7 +604,7 @@ static void client_close_and_free(struct tftp_client *client)
 	free(client);
 }
 
-int main()
+int main(int argc, char **argv)
 {
 	struct tftp_client *client;
 	struct tftp_client *next;
@@ -618,6 +619,27 @@ int main()
 	int ret;
 	int fd;
 
+	/* Initialize configuration with defaults */
+	tqftp_config_init_defaults(&tqftp_config);
+
+	/* Parse command line arguments */
+	ret = tqftp_config_parse_args(argc, argv, &tqftp_config);
+	if (ret == 1) {
+		/* Help was shown */
+		return 0;
+	} else if (ret < 0) {
+		/* Error in arguments */
+		return 1;
+	}
+
+	/* Initialize logging */
+	tqftp_log_init_with_config(&tqftp_config.log_config);
+
+	TQFTP_LOG_INFO("TQFTP server starting");
+	TQFTP_LOG_DEBUG("Configuration: readonly_path=%s, readwrite_path=%s, firmware_base=%s, temp_dir=%s",
+			tqftp_config.readonly_path, tqftp_config.readwrite_path,
+			tqftp_config.firmware_base, tqftp_config.temp_dir);
+
 	fd = qrtr_open(0);
 	if (fd < 0) {
 		TQFTP_LOG_ERR("failed to open qrtr socket");

translate.c

@@ -22,17 +22,7 @@
 #include "translate.h"
 #include "zstd-decompress.h"
 #include "logging.h"
-#define READONLY_PATH	"/readonly/firmware/image/"
-#define READWRITE_PATH	"/readwrite/"
-
-#ifndef ANDROID
-#define FIRMWARE_BASE	"/lib/firmware/"
-#define TQFTPSERV_TMP	"/tmp/tqftpserv"
-#define UPDATES_DIR	"updates/"
-#else
-#define FIRMWARE_BASE	"/vendor/firmware/"
-#define TQFTPSERV_TMP	"/data/vendor/tmp/tqftpserv"
-#endif
+#include "config.h"
 
 static int open_maybe_compressed(const char *path);
 
@@ -134,19 +124,19 @@ static int translate_readonly(const char *file)
 		}
 
 		/* now try with base path */
-		if (strlen(FIRMWARE_BASE) + strlen(UPDATES_DIR) + strlen(firmware_value) + 1 +
+		if (strlen(tqftp_config.firmware_base) + strlen(tqftp_config.updates_dir) + strlen(firmware_value) + 1 +
 		    strlen(file) + 1 > sizeof(path))
 			continue;
 
-		strcpy(path, FIRMWARE_BASE);
-		strcat(path, UPDATES_DIR);
+		strcpy(path, tqftp_config.firmware_base);
+		strcat(path, tqftp_config.updates_dir);
 		strcat(path, firmware_path);
 		strcat(path, "/");
 		strcat(path, file);
 
 		fd = open_maybe_compressed(path);
 		if (fd < 0) {
-			strcpy(path, FIRMWARE_BASE);
+			strcpy(path, tqftp_config.firmware_base);
 			strcat(path, firmware_path);
 			strcat(path, "/");
 			strcat(path, file);
@@ -179,17 +169,17 @@ static int translate_readwrite(const char *file, int flags)
 	int ret;
 	int fd;
 
-	ret = mkdir(TQFTPSERV_TMP, 0700);
+	ret = mkdir(tqftp_config.temp_dir, 0700);
 	if (ret < 0 && errno != EEXIST) {
 		TQFTP_LOG_WARN("failed to create temporary tqftpserv directory %s: %s",
-				TQFTPSERV_TMP, strerror(errno));
+				tqftp_config.temp_dir, strerror(errno));
 		return -1;
 	}
 
-	base = open(TQFTPSERV_TMP, O_RDONLY | O_DIRECTORY);
+	base = open(tqftp_config.temp_dir, O_RDONLY | O_DIRECTORY);
 	if (base < 0) {
 		TQFTP_LOG_WARN("failed to open temporary tqftpserv directory %s: %s",
-				TQFTPSERV_TMP, strerror(errno));
+				tqftp_config.temp_dir, strerror(errno));
 		return -1;
 	}
 
@@ -211,10 +201,10 @@ static int translate_readwrite(const char *file, int flags)
  */
 int translate_open(const char *path, int flags)
 {
-	if (!strncmp(path, READONLY_PATH, strlen(READONLY_PATH)))
-		return translate_readonly(path + strlen(READONLY_PATH));
-	else if (!strncmp(path, READWRITE_PATH, strlen(READWRITE_PATH)))
-		return translate_readwrite(path + strlen(READWRITE_PATH), flags);
+	if (!strncmp(path, tqftp_config.readonly_path, strlen(tqftp_config.readonly_path)))
+		return translate_readonly(path + strlen(tqftp_config.readonly_path));
+	else if (!strncmp(path, tqftp_config.readwrite_path, strlen(tqftp_config.readwrite_path)))
+		return translate_readwrite(path + strlen(tqftp_config.readwrite_path), flags);
 
 	TQFTP_LOG_ERR("invalid path %s, rejecting", path);
 	errno = ENOENT;