proto.c

   1 #include <string.h>
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4
   5 #include "netifd.h"
   6 #include "interface.h"
   7 #include "proto.h"
   8
   9 static void
  10 default_proto_free(struct interface_proto_state *proto)
  11 {
  12         free(proto);
  13 }
  14
  15 static int
  16 default_proto_handler(struct interface_proto_state *proto,
  17                       enum interface_proto_cmd cmd, bool force)
  18 {
  19         return 0;
  20 }
  21
  22 struct interface_proto_state *get_default_proto(void)
  23 {
  24         struct interface_proto_state *proto;
  25
  26         proto = calloc(1, sizeof(*proto));
  27         proto->handler = default_proto_handler;
  28         proto->free = default_proto_free;
  29         proto->flags = PROTO_FLAG_IMMEDIATE;
  30
  31         return proto;
  32 }
  33
  34 int interface_proto_event(struct interface_proto_state *proto,
  35                           enum interface_proto_cmd cmd, bool force)
  36 {
  37         enum interface_event ev;
  38         int ret;
  39
  40         ret = proto->handler(proto, cmd, force);
  41         if (ret || !(proto->flags & PROTO_FLAG_IMMEDIATE))
  42                 goto out;
  43
  44         switch(cmd) {
  45         case PROTO_CMD_SETUP:
  46                 ev = IFEV_UP;
  47                 break;
  48         case PROTO_CMD_TEARDOWN:
  49                 ev = IFEV_DOWN;
  50                 break;
  51         default:
  52                 return -EINVAL;
  53         }
  54         proto->proto_event(proto, ev);
  55
  56 out:
  57         return ret;
  58 }