tools/net/ynl/samples/ovs.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <stdio.h>
   3 #include <string.h>
   4
   5 #include <ynl.h>
   6
   7 #include "ovs_datapath-user.h"
   8
   9 int main(int argc, char **argv)
  10 {
  11         struct ynl_sock *ys;
  12         int err;
  13
  14         ys = ynl_sock_create(&ynl_ovs_datapath_family, NULL);
  15         if (!ys)
  16                 return 1;
  17
  18         if (argc > 1) {
  19                 struct ovs_datapath_new_req *req;
  20
  21                 req = ovs_datapath_new_req_alloc();
  22                 if (!req)
  23                         goto err_close;
  24
  25                 ovs_datapath_new_req_set_upcall_pid(req, 1);
  26                 ovs_datapath_new_req_set_name(req, argv[1]);
  27
  28                 err = ovs_datapath_new(ys, req);
  29                 ovs_datapath_new_req_free(req);
  30                 if (err)
  31                         goto err_close;
  32         } else {
  33                 struct ovs_datapath_get_req_dump *req;
  34                 struct ovs_datapath_get_list *dps;
  35
  36                 printf("Dump:\n");
  37                 req = ovs_datapath_get_req_dump_alloc();
  38
  39                 dps = ovs_datapath_get_dump(ys, req);
  40                 ovs_datapath_get_req_dump_free(req);
  41                 if (!dps)
  42                         goto err_close;
  43
  44                 ynl_dump_foreach(dps, dp) {
  45                         printf("  %s(%d): pid:%u cache:%u\n",
  46                                dp->name, dp->_hdr.dp_ifindex,
  47                                dp->upcall_pid, dp->masks_cache_size);
  48                 }
  49                 ovs_datapath_get_list_free(dps);
  50         }
  51
  52         ynl_sock_destroy(ys);
  53
  54         return 0;
  55
  56 err_close:
  57         fprintf(stderr, "YNL (%d): %s\n", ys->err.code, ys->err.msg);
  58         ynl_sock_destroy(ys);
  59         return 2;
  60 }