[bluez,v2,1/3] btmgmt: Add "monitor" btmgmt submenu and command "features"

Commit Message

Michael Sun June 17, 2020, 6:26 a.m. UTC

This patch introduces a new submenu "monitor" along with command
‘features’ to help user query for supported advertisement features. The
command will work with the new MGMT opcode
MGMT_OP_READ_ADV_MONITOR_FEATURES.

Reviewed-by: Alain Michaud <[e-mail]>
Reviewed-by: Miao-chen Chou <[e-mail]>
Signed-off-by: Michael Sun <[e-mail]>
---

Changes in v2:
- Move advertisement monitor commands into monitor submenu.
- Fixing build warnings.

 tools/btmgmt.c | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)

Comments

[e-mail] June 17, 2020, 6:38 a.m. UTC | #1

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
While we are preparing for reviewing the patches, we found the following
issue/warning.

Test Result:
checkbuild Failed

Outputs:
ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
tools/btmgmt.c: In function ‘advmon_features2str’:
tools/btmgmt.c:4608:16: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’ [-Werror=sign-compare]
 4608 |  for (i = 0; i < NELEM(advmon_features_str); i++) {
      |                ^
tools/btmgmt.c:4609:41: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’ [-Werror=sign-compare]
 4609 |   if ((features & (1 << i)) != 0 && off < sizeof(str))
      |                                         ^
tools/btmgmt.c: In function ‘str2pattern’:
tools/btmgmt.c:4691:44: error: unused variable ‘length’ [-Werror=unused-variable]
 4691 |  int type_len, offset_len, offset_end_pos, length, str_len;
      |                                            ^~~~~~
tools/btmgmt.c: In function ‘cmd_advmon_add’:
tools/btmgmt.c:4744:11: error: unused variable ‘i’ [-Werror=unused-variable]
 4744 |  int opt, i;
      |           ^
tools/btmgmt.c:4745:39: error: ‘cp_len’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 4745 |  int pattern_count = 0, patterns_len, cp_len;
      |                                       ^~~~~~
cc1: all warnings being treated as errors
make[1]: *** [Makefile:6791: tools/btmgmt.o] Error 1
make: *** [Makefile:4010: all] Error 2



---
Regards,
Linux Bluetooth

Patch

diff --git a/tools/btmgmt.c b/tools/btmgmt.c
index 46e7465b31c9..a0487d4de178 100644
--- a/tools/btmgmt.c
+++ b/tools/btmgmt.c
@@ -4567,6 +4567,83 @@  static void cmd_wbs(int argc, char **argv)
 	cmd_setting(MGMT_OP_SET_WIDEBAND_SPEECH, argc, argv);
 }
 
+static const char * const advmon_features_str[] = {
+	"Pattern monitor with logic OR.",
+};
+
+static const char *advmon_features2str(uint32_t features)
+{
+	static char str[512];
+	int off, i;
+
+	off = 0;
+	snprintf(str, sizeof(str), "\n\tNone");
+
+	for (i = 0; i < NELEM(advmon_features_str); i++) {
+		if ((features & (1 << i)) != 0 && off < sizeof(str))
+			off += snprintf(str + off, sizeof(str) - off, "\n\t%s",
+						advmon_features_str[i]);
+	}
+
+	return str;
+}
+
+static void advmon_features_rsp(uint8_t status, uint16_t len, const void *param,
+							void *user_data)
+{
+	const struct mgmt_rp_read_adv_monitor_features *rp = param;
+	uint32_t supported_features, enabled_features;
+	uint16_t num_handles;
+	int i;
+
+	if (status != MGMT_STATUS_SUCCESS) {
+		error("Reading adv monitor features failed with status 0x%02x "
+					"(%s)", status, mgmt_errstr(status));
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	if (len < sizeof(*rp)) {
+		error("Too small adv monitor features reply (%u bytes)", len);
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	if (len < sizeof(*rp) + rp->num_handles * sizeof(uint16_t)) {
+		error("Handles count (%u) doesn't match reply length (%u)",
+							rp->num_handles, len);
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	supported_features = le32_to_cpu(rp->supported_features);
+	enabled_features = le32_to_cpu(rp->enabled_features);
+	num_handles = le16_to_cpu(rp->num_handles);
+
+	print("Supported features:%s", advmon_features2str(supported_features));
+	print("Enabled features:%s", advmon_features2str(enabled_features));
+	print("Max number of handles: %u", le16_to_cpu(rp->max_num_handles));
+	print("Max number of patterns: %u", rp->max_num_patterns);
+	print("Handles list with %u item%s", num_handles,
+			num_handles == 0 ? "" : num_handles == 1 ? ":" : "s:");
+	for (i = 0; i < num_handles; i++)
+		print("\t0x%04x ", le16_to_cpu(rp->handles[i]));
+
+	return bt_shell_noninteractive_quit(EXIT_SUCCESS);
+}
+
+static void cmd_advmon_features(int argc, char **argv)
+{
+	uint16_t index;
+
+	index = mgmt_index;
+	if (index == MGMT_INDEX_NONE)
+		index = 0;
+
+	if (!mgmt_send(mgmt, MGMT_OP_READ_ADV_MONITOR_FEATURES, index, 0, NULL,
+					advmon_features_rsp, NULL, NULL)) {
+		error("Unable to send advertising monitor features command");
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+}
+
 static void register_mgmt_callbacks(struct mgmt *mgmt, uint16_t index)
 {
 	mgmt_register(mgmt, MGMT_EV_CONTROLLER_ERROR, index, controller_error,
@@ -4635,6 +4712,16 @@  static void cmd_select(int argc, char **argv)
 	update_prompt(mgmt_index);
 }
 
+static const struct bt_shell_menu monitor_menu = {
+	.name = "monitor",
+	.desc = "Advertisement Monitor Submenu",
+	.entries = {
+	{ "features",		NULL,
+		cmd_advmon_features,	"Show advertisement monitor "
+					"features"			},
+	{ } },
+};
+
 static const struct bt_shell_menu main_menu = {
 	.name = "main",
 	.entries = {
@@ -4815,6 +4902,7 @@  int main(int argc, char *argv[])
 
 	bt_shell_init(argc, argv, &opt);
 	bt_shell_set_menu(&main_menu);
+	bt_shell_add_submenu(&monitor_menu);
 
 	mgmt = mgmt_new_default();
 	if (!mgmt) {