[PATCH BlueZ v3 2/2] mesh: Added --io option

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This allows specifying io type and options when invoking the daemon.

By default, meshd runs with MESH_IO_TYPE_GENERIC and tries to attach to
the first available HCI interface.

Option "--index=<n>" is now just a shortcut for "--io=generic:<n>"
---
 mesh/main.c | 94 +++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 77 insertions(+), 17 deletions(-)

diff --git a/mesh/main.c b/mesh/main.c
index 262e3da48..c9bf850f6 100644
--- a/mesh/main.c
+++ b/mesh/main.c
@@ -39,6 +39,7 @@
 
 static const struct option main_options[] = {
 	{ "index",	required_argument,	NULL, 'i' },
+	{ "io",		required_argument,	NULL, 'I' },
 	{ "config",	optional_argument,	NULL, 'c' },
 	{ "nodetach",	no_argument,		NULL, 'n' },
 	{ "debug",	no_argument,		NULL, 'd' },
@@ -49,16 +50,23 @@ static const struct option main_options[] = {
 
 static void usage(void)
 {
-	l_info("");
-	l_info("Usage:\n"
+	fprintf(stderr,
+		"Usage:\n"
 	       "\tbluetooth-meshd [options]\n");
-	l_info("Options:\n"
-	       "\t--index <hcinum>  Use specified controller\n"
+	fprintf(stderr,
+		"Options:\n"
+	       "\t--index <hcinum>  Equivalent of `--io=generic:<hcinum>`\n"
+	       "\t--io <io>         Use specified io (default: generic)\n"
 	       "\t--config          Configuration directory\n"
 	       "\t--nodetach        Run in foreground\n"
 	       "\t--debug           Enable debug output\n"
 	       "\t--dbus-debug      Enable D-Bus debugging\n"
 	       "\t--help            Show %s information\n", __func__);
+	fprintf(stderr,
+	       "io:\n"
+	       "\tgeneric[:<index>]\n"
+	       "\t\tUse generic HCI io on interface hci<index>, or the first\n"
+	       "\t\tavailable one\n");
 }
 
 static void do_debug(const char *str, void *user_data)
@@ -107,6 +115,37 @@ static void signal_handler(uint32_t signo, void *user_data)
 	terminated = true;
 }
 
+static bool parse_io(const char *optarg, enum mesh_io_type *type, void **opts)
+{
+	if (strstr(optarg, "generic") == optarg) {
+		int *index = l_new(int, 1);
+
+		*type = MESH_IO_TYPE_GENERIC;
+		*opts = index;
+
+		optarg += strlen("generic");
+		if (!*optarg) {
+			*index = MGMT_INDEX_NONE;
+			return true;
+		}
+
+		if (*optarg != ':')
+			return false;
+
+		optarg++;
+
+		if (sscanf(optarg, "hci%d", index) == 1)
+			return true;
+
+		if (sscanf(optarg, "%d", index) == 1)
+			return true;
+
+		return false;
+	}
+
+	return false;
+}
+
 int main(int argc, char *argv[])
 {
 	int status;
@@ -114,7 +153,9 @@ int main(int argc, char *argv[])
 	bool dbus_debug = false;
 	struct l_dbus *dbus = NULL;
 	const char *config_dir = NULL;
-	int index = MGMT_INDEX_NONE;
+	enum mesh_io_type io_type = MESH_IO_TYPE_NONE;
+	char *io = NULL;
+	void *io_opts = NULL;
 
 	if (!l_main_init())
 		return -1;
@@ -123,7 +164,6 @@ int main(int argc, char *argv[])
 
 	for (;;) {
 		int opt;
-		const char *str;
 
 		opt = getopt_long(argc, argv, "i:c:ndbh", main_options, NULL);
 		if (opt < 0)
@@ -131,18 +171,20 @@ int main(int argc, char *argv[])
 
 		switch (opt) {
 		case 'i':
-			if (strlen(optarg) > 3 && !strncmp(optarg, "hci", 3))
-				str = optarg + 3;
-			else
-				str = optarg;
-			if (!isdigit(*str)) {
-				l_error("Invalid controller index value");
-				status = EXIT_FAILURE;
+			if (io) {
+				l_error("Use either --index or --io, not both");
+				status = EXIT_SUCCESS;
 				goto done;
 			}
-
-			index = atoi(str);
-
+			io = l_strdup_printf("generic:%s", optarg);
+			break;
+		case 'I':
+			if (io) {
+				l_error("Use either --index or --io, not both");
+				status = EXIT_SUCCESS;
+				goto done;
+			}
+			io = l_strdup(optarg);
 			break;
 		case 'n':
 			detached = false;
@@ -167,8 +209,20 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (!parse_io(io, &io_type, &io_opts)) {
+		l_error("Invalid io: %s", io);
+		status = EXIT_FAILURE;
+		goto done;
+	}
+
+	if ((io_type == MESH_IO_TYPE_NONE) && !io_opts) {
+		int *index = l_new(int, 1);
+		*index = MGMT_INDEX_NONE;
+		io_type = MESH_IO_TYPE_GENERIC;
+		io_opts = index;
+	}
 
-	if (!mesh_init(config_dir, MESH_IO_TYPE_GENERIC, &index)) {
+	if (!mesh_init(config_dir, io_type, io_opts)) {
 		l_error("Failed to initialize mesh");
 		status = EXIT_FAILURE;
 		goto done;
@@ -198,6 +252,12 @@ int main(int argc, char *argv[])
 	status = l_main_run_with_signal(signal_handler, NULL);
 
 done:
+	if (io)
+		l_free(io);
+
+	if (io_opts)
+		l_free(io_opts);
+
 	mesh_cleanup();
 	l_dbus_destroy(dbus);
 	l_main_exit();
-- 
2.19.1




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