dm: acrn-tool: Add del runC configuration in acrnctl del

The patch adds logic to delete runC configuration in acrnctl del command.
After launch the VM in container there will have configuration files in user
directory. When delete the VM by "acrnctl del" command the command will delete
the runC configuration files at same time.

Tracked-On: #2020
Signed-off-by: Long Liu <long.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Reviewed-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Yan, Like <like.yan@intel.com>

tools/acrn-manager/acrnctl.c

@@ -436,6 +436,52 @@ static int acrnctl_do_stop(int argc, char *argv[])
 	return 0;
 }
 
+/* Function: Delete runC configuration */
+static inline int del_runC(char *argv)
+{
+	char cmd[128];
+	char cmd_out[256];
+	char runc_path[128];
+
+	/* The configuration added by launch_uos script */
+	if (snprintf(runc_path, sizeof(runc_path), "%s/runc/%s",
+			ACRN_CONF_PATH_ADD, argv) >= sizeof(runc_path)) {
+		printf("ERROR: runC path %s is truncated\n", runc_path);
+		return -1;
+	}
+	if (access(runc_path, F_OK) != 0)
+		return 0;
+
+	/* Check if there is a container */
+	if (snprintf(cmd, sizeof(cmd), "runc list | grep %s",
+				argv) >= sizeof(cmd)) {
+		printf("ERROR: runc cmd: %s is truncated\n", cmd);
+		return -1;
+	}
+	shell_cmd(cmd, cmd_out, sizeof(cmd_out));
+	if (strstr(cmd_out, argv) != NULL) {
+		/* If the container is still running stop it by runc pause */
+		if (strstr(cmd_out, "stopped") == NULL) {
+			printf("Pls stop the runC before del it !!\n");
+			return -1;
+		}
+		if (snprintf(cmd, sizeof(cmd), "runc delete %s",
+				argv) >= sizeof(cmd)) {
+			printf("ERROR: del container: %s trancated!", cmd);
+			return -1;
+		}
+		system(cmd);
+		if (snprintf(cmd, sizeof(cmd), "rm -f %s/runc/%s -rf",
+				ACRN_CONF_PATH_ADD, argv) >= sizeof(cmd)) {
+			printf("ERROR: delete cmd: %s trancated!\n", cmd);
+			return -1;
+		}
+		system(cmd);
+	}
+
+	return 0;
+}
+
 /* command: delete */
 static int acrnctl_do_del(int argc, char *argv[])
 {
@@ -466,6 +512,10 @@ static int acrnctl_do_del(int argc, char *argv[])
 			return -1;
 		}
 		system(cmd);
+		if (del_runC(argv[i]) < 0) {
+			printf("ERROR: del runC failed!\n");
+			return -1;
+		}
 	}
 
 	return 0;