C++ (Cpp) parse_rtattrs Examples

Example #1

File: if_info.c Project: a170785/buildroot

int if_info_save_interface(struct nlmsghdr *hdr, void *arg)
{
    struct rtattr *attrs[IFLA_MAX + 1];
    struct ifinfomsg *info = NLMSG_DATA(hdr);

    parse_rtattrs(attrs, IFLA_MAX, IFLA_RTA(info), IFLA_PAYLOAD(hdr));

    return if_info_update_interface(hdr, attrs) ? 0 : -1;
}

Example #2

File: fpm_stub.c Project: ProyectoRRAP/LiveCode

/*
 * parse_route_msg
 */
int
parse_route_msg (netlink_msg_ctx_t *ctx)
{
  int len;
  struct rtattr **rtattrs, *rtattr, *gateway, *oif;
  int if_index;

  ctx->rtmsg = NLMSG_DATA(ctx->hdr);

  len = ctx->hdr->nlmsg_len - NLMSG_LENGTH(sizeof(struct rtmsg));
  if (len < 0) {
    netlink_msg_ctx_set_err(ctx, "Bad message length");    
    return 0;
  }

  if (!parse_rtattrs(ctx, RTM_RTA(ctx->rtmsg), len)) {
    return 0;
  }

  rtattrs = ctx->rtattrs;

  ctx->dest = rtattrs[RTA_DST];
  ctx->src = rtattrs[RTA_PREFSRC];

  rtattr = rtattrs[RTA_PRIORITY];
  if (rtattr) {
    ctx->metric = (int *) RTA_DATA(rtattr);
  }

  gateway = rtattrs[RTA_GATEWAY];
  oif = rtattrs[RTA_OIF];
  if (gateway || oif) {
    if_index = 0;
    if (oif) {
      if_index = *((int *) RTA_DATA(oif));
    }
    netlink_msg_ctx_add_nh(ctx, if_index, gateway);
  }

  rtattr = rtattrs[RTA_MULTIPATH];
  if (rtattr) {
    parse_multipath_attr(ctx, rtattr);
  }

  return 1;
}