[bluez,v3,2/3] btmgmt: Add command "remove" into "monitor" btmgmt submenu

Commit Message

Michael Sun June 17, 2020, 7:55 a.m. UTC

This patch introduces a new btmgmt command ‘remove’ wihtin "monitor"
submenu to allow users to remove previously added filters along with a
event handler to handle kernel issued MGMT_EV_ADV_MONITOR_REMOVED
event. The command will work with the new
MGMT opcode MGMT_OP_REMOVE_ADV_MONITOR.

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

Changes in v3: None
Changes in v2:
- Move remove command into submenu and fix build warnings

 tools/btmgmt.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

Comments

[e-mail] June 17, 2020, 8:08 a.m. UTC | #1

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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:
checkpatch Failed

Outputs:
WARNING:SSCANF_TO_KSTRTO: Prefer kstrto<type> to single variable sscanf
#72: FILE: tools/btmgmt.c:4685:
+	if (sscanf(argv[1], "%hx", &monitor_handle) != 1) {
+		error("Wrong formatted handle argument");
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}

- total: 0 errors, 1 warnings, 79 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Your patch has style problems, please review.

NOTE: Ignored message types: COMMIT_MESSAGE COMPLEX_MACRO CONST_STRUCT FILE_PATH_CHANGES MISSING_SIGN_OFF PREFER_PACKED SPLIT_STRING

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.



---
Regards,
Linux Bluetooth

Patch

diff --git a/tools/btmgmt.c b/tools/btmgmt.c
index a0487d4de178..5a70e9e1c3e9 100644
--- a/tools/btmgmt.c
+++ b/tools/btmgmt.c
@@ -1013,6 +1013,19 @@  static void advertising_removed(uint16_t index, uint16_t len,
 	print("hci%u advertising_removed: instance %u", index, ev->instance);
 }
 
+static void advmon_removed(uint16_t index, uint16_t len, const void *param,
+							void *user_data)
+{
+	const struct mgmt_ev_adv_monitor_removed *ev = param;
+
+	if (len < sizeof(*ev)) {
+		error("Too small (%u bytes) %s event", len, __func__);
+		return;
+	}
+
+	print("hci%u %s: handle %u", index, __func__, ev->monitor_handle);
+}
+
 static void version_rsp(uint8_t status, uint16_t len, const void *param,
 							void *user_data)
 {
@@ -4644,6 +4657,44 @@  static void cmd_advmon_features(int argc, char **argv)
 	}
 }
 
+static void advmon_remove_rsp(uint8_t status, uint16_t len, const void *param,
+							void *user_data)
+{
+	const struct mgmt_rp_remove_adv_monitor *rp = param;
+
+	if (status != MGMT_STATUS_SUCCESS) {
+		error("Could not remove advertisement monitor with status "
+				"0x%02x (%s)", status, mgmt_errstr(status));
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	print("Advertisement monitor with handle: 0x%04x removed",
+							rp->monitor_handle);
+	return bt_shell_noninteractive_quit(EXIT_SUCCESS);
+}
+
+static void cmd_advmon_remove(int argc, char **argv)
+{
+	struct mgmt_cp_remove_adv_monitor cp;
+	uint16_t index, monitor_handle;
+
+	index = mgmt_index;
+	if (index == MGMT_INDEX_NONE)
+		index = 0;
+
+	if (sscanf(argv[1], "%hx", &monitor_handle) != 1) {
+		error("Wrong formatted handle argument");
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	cp.monitor_handle = monitor_handle;
+	if (mgmt_send(mgmt, MGMT_OP_REMOVE_ADV_MONITOR, index, sizeof(cp), &cp,
+					advmon_remove_rsp, NULL, NULL) == 0) {
+		error("Unable to send appearance cmd");
+		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,
@@ -4696,6 +4747,8 @@  static void register_mgmt_callbacks(struct mgmt *mgmt, uint16_t index)
 						advertising_added, NULL, NULL);
 	mgmt_register(mgmt, MGMT_EV_ADVERTISING_REMOVED, index,
 					advertising_removed, NULL, NULL);
+	mgmt_register(mgmt, MGMT_EV_ADV_MONITOR_REMOVED, index, advmon_removed,
+								NULL, NULL);
 }
 
 static void cmd_select(int argc, char **argv)
@@ -4719,6 +4772,8 @@  static const struct bt_shell_menu monitor_menu = {
 	{ "features",		NULL,
 		cmd_advmon_features,	"Show advertisement monitor "
 					"features"			},
+	{ "remove",		"<handle>",
+		cmd_advmon_remove,	"Remove advertisement monitor "	},
 	{ } },
 };