commands.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <strings.h>
   4 #include <stdlib.h>
   5 #include <unistd.h>
   6
   7 #include <libubox/blobmsg.h>
   8 #include <libubox/blobmsg_json.h>
   9
  10 #include "uqmi.h"
  11 #include "commands.h"
  12
  13 static struct blob_buf status;
  14 bool single_line = false;
  15
  16 static void no_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
  17 {
  18 }
  19
  20 static void cmd_version_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
  21 {
  22         struct qmi_ctl_get_version_info_response res;
  23         void *c;
  24         char name_buf[16];
  25         int i;
  26
  27         qmi_parse_ctl_get_version_info_response(msg, &res);
  28
  29         c = blobmsg_open_table(&status, NULL);
  30         for (i = 0; i < res.data.service_list_n; i++) {
  31                 sprintf(name_buf, "service_%d", res.data.service_list[i].service);
  32                 blobmsg_printf(&status, name_buf, "%d,%d",
  33                         res.data.service_list[i].major_version,
  34                         res.data.service_list[i].minor_version);
  35         }
  36         blobmsg_close_table(&status, c);
  37 }
  38
  39 static enum qmi_cmd_result
  40 cmd_version_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
  41 {
  42         qmi_set_ctl_get_version_info_request(msg);
  43         return QMI_CMD_REQUEST;
  44 }
  45
  46 #define cmd_get_client_id_cb no_cb
  47 static enum qmi_cmd_result
  48 cmd_get_client_id_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
  49 {
  50         QmiService svc = qmi_service_get_by_name(arg);
  51
  52         if (svc < 0) {
  53                 fprintf(stderr, "Invalid service name '%s'\n", arg);
  54                 return QMI_CMD_EXIT;
  55         }
  56
  57         if (qmi_service_connect(qmi, svc, -1)) {
  58                 fprintf(stderr, "Failed to connect to service\n");
  59                 return QMI_CMD_EXIT;
  60         }
  61
  62         printf("%d\n", qmi_service_get_client_id(qmi, svc));
  63         return QMI_CMD_DONE;
  64 }
  65
  66 #define cmd_set_client_id_cb no_cb
  67 static enum qmi_cmd_result
  68 cmd_set_client_id_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
  69 {
  70         QmiService svc;
  71         int id;
  72         char *s;
  73
  74         s = strchr(arg, ',');
  75         if (!s) {
  76                 fprintf(stderr, "Invalid argument\n");
  77                 return QMI_CMD_EXIT;
  78         }
  79         *s = 0;
  80         s++;
  81
  82         id = strtoul(s, &s, 0);
  83         if (s && *s) {
  84                 fprintf(stderr, "Invalid argument\n");
  85                 return QMI_CMD_EXIT;
  86         }
  87
  88         svc = qmi_service_get_by_name(arg);
  89         if (svc < 0) {
  90                 fprintf(stderr, "Invalid service name '%s'\n", arg);
  91                 return QMI_CMD_EXIT;
  92         }
  93
  94         if (qmi_service_connect(qmi, svc, id)) {
  95                 fprintf(stderr, "Failed to connect to service\n");
  96                 return QMI_CMD_EXIT;
  97         }
  98
  99         return QMI_CMD_DONE;
 100 }
 101
 102 #include "commands-wds.c"
 103 #include "commands-dms.c"
 104 #include "commands-nas.c"
 105 #include "commands-wms.c"
 106
 107 #define __uqmi_command(_name, _optname, _arg, _type) \
 108         [__UQMI_COMMAND_##_name] = { \
 109                 .name = #_optname, \
 110                 .type = _type, \
 111                 .prepare = cmd_##_name##_prepare, \
 112                 .cb = cmd_##_name##_cb, \
 113         }
 114
 115 const struct uqmi_cmd_handler uqmi_cmd_handler[__UQMI_COMMAND_LAST] = {
 116         __uqmi_commands
 117 };
 118 #undef __uqmi_command
 119
 120 static struct uqmi_cmd *cmds;
 121 static int n_cmds;
 122
 123 void uqmi_add_command(char *arg, int cmd)
 124 {
 125         int idx = n_cmds++;
 126
 127         cmds = realloc(cmds, n_cmds * sizeof(*cmds));
 128         cmds[idx].handler = &uqmi_cmd_handler[cmd];
 129         cmds[idx].arg = optarg;
 130 }
 131
 132 static void uqmi_print_result(struct blob_attr *data)
 133 {
 134         char *str;
 135
 136         if (!blob_len(data))
 137                 return;
 138
 139         str = blobmsg_format_json_indent(blob_data(data), false, single_line ? -1 : 0);
 140         if (!str)
 141                 return;
 142
 143         printf("%s\n", str);
 144         free(str);
 145 }
 146
 147 static bool __uqmi_run_commands(struct qmi_dev *qmi, bool option)
 148 {
 149         static char buf[2048];
 150         static struct qmi_request req;
 151         int i;
 152
 153         for (i = 0; i < n_cmds; i++) {
 154                 enum qmi_cmd_result res;
 155                 bool cmd_option = cmds[i].handler->type == CMD_TYPE_OPTION;
 156                 bool do_break = false;
 157
 158                 if (cmd_option != option)
 159                         continue;
 160
 161                 blob_buf_init(&status, 0);
 162                 if (cmds[i].handler->type > QMI_SERVICE_CTL &&
 163                     qmi_service_connect(qmi, cmds[i].handler->type, -1)) {
 164                         uqmi_add_error("Failed to connect to service");
 165                         res = QMI_CMD_EXIT;
 166                 } else {
 167                         res = cmds[i].handler->prepare(qmi, &req, (void *) buf, cmds[i].arg);
 168                 }
 169
 170                 if (res == QMI_CMD_REQUEST) {
 171                         qmi_request_start(qmi, &req, (void *) buf, cmds[i].handler->cb);
 172                         req.no_error_cb = true;
 173                         if (qmi_request_wait(qmi, &req)) {
 174                                 uqmi_add_error(qmi_get_error_str(req.ret));
 175                                 do_break = true;
 176                         }
 177                 } else if (res == QMI_CMD_EXIT) {
 178                         do_break = true;
 179                 }
 180
 181                 uqmi_print_result(status.head);
 182                 if (do_break)
 183                         return false;
 184         }
 185         return true;
 186 }
 187
 188 int uqmi_add_error(const char *msg)
 189 {
 190         blobmsg_add_string(&status, NULL, msg);
 191         return QMI_CMD_EXIT;
 192 }
 193
 194 bool uqmi_run_commands(struct qmi_dev *qmi)
 195 {
 196         bool ret;
 197
 198         ret = __uqmi_run_commands(qmi, true) &&
 199               __uqmi_run_commands(qmi, false);
 200
 201         free(cmds);
 202         cmds = NULL;
 203         n_cmds = 0;
 204
 205         return ret;
 206 }