mirror of https://github.com/apache/cloudstack.git
379 lines
9.1 KiB
C
379 lines
9.1 KiB
C
/*
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* Copyright (C) 2004, 2005 Mike Wray <mike.wray@hp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free software Foundation, Inc.,
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* 59 Temple Place, suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifdef __KERNEL__
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/version.h>
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#include <linux/errno.h>
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#else
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#include "sys_kernel.h"
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#include "spinlock.h"
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#endif
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#include "vnet.h"
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#include "varp.h"
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#include "vif.h"
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#include "vnet_forward.h"
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#include "sa.h"
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#include "iostream.h"
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#ifdef __KERNEL__
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#include "kernel_stream.h"
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#else
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#include "file_stream.h"
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#endif
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#include "sxpr_util.h"
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#include "vnet_eval.h"
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#define MODULE_NAME "VNET"
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#define DEBUG 1
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#undef DEBUG
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#include "debug.h"
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/** Create a vnet.
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* It is an error if a vnet with the same id exists.
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*
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* @param vnet vnet id
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* @param device vnet device name
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* @param security security level
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* @return 0 on success, error code otherwise
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*/
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static int ctrl_vnet_add(VnetId *vnet, char *device, int security){
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int err = 0;
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Vnet *vnetinfo = NULL;
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if(strlen(device) >= IFNAMSIZ){
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err = -EINVAL;
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goto exit;
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}
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if(Vnet_lookup(vnet, NULL) == 0){
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err = -EEXIST;
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goto exit;
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}
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err = Vnet_alloc(&vnetinfo);
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if(err) goto exit;
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vnetinfo->vnet = *vnet;
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vnetinfo->security = security;
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strcpy(vnetinfo->device, device);
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err = Vnet_create(vnetinfo);
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exit:
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if(vnetinfo) Vnet_decref(vnetinfo);
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return err;
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}
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/** Create an entry for a vif with the given vnet and vmac.
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*
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* @param vnet vnet id
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* @param vmac mac address
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* @return 0 on success, error code otherwise
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*/
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static int ctrl_vif_add(VnetId *vnet, Vmac *vmac){
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int err = 0;
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Vif *vif = NULL;
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err = Vnet_lookup(vnet, NULL);
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if(err) goto exit;
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err = vif_create(vnet, vmac, 0, &vif);
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exit:
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if(vif) vif_decref(vif);
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return err;
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}
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/** Delete a vif.
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*
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* @param vnet vnet id
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* @param vmac mac address
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* @return 0 on success, error code otherwise
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*/
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static int ctrl_vif_del(VnetId *vnet, Vmac *vmac){
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int err = 0;
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Vif *vif = NULL;
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err = Vnet_lookup(vnet, NULL);
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if(err) goto exit;
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err = vif_lookup(vnet, vmac, &vif);
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if(err) goto exit;
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vif_remove(vnet, vmac);
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exit:
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if(vif) vif_decref(vif);
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return err;
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}
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/** (varp.print)
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*/
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static int eval_varp_print(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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vnet_print(out);
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vif_print(out);
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varp_print(out);
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return err;
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}
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static int eval_varp_list(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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varp_print(out);
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return err;
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}
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/** (varp.mcaddr (addr <addr>))
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*/
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static int eval_varp_mcaddr(Sxpr exp, IOStream *out, void *data){
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int err =0;
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Sxpr oaddr = intern("addr");
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uint32_t addr;
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err = child_addr(exp, oaddr, &addr);
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if(err < 0) goto exit;
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varp_set_mcast_addr(addr);
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exit:
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return err;
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}
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/** (varp.flush)
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*/
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static int eval_varp_flush(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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varp_flush();
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return err;
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}
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/** (vnet.add (id <id>)
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* [(vnetif <name>)]
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* [(security { none | auth | conf } )]
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* )
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*/
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int eval_vnet_add(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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Sxpr oid = intern("id");
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Sxpr osecurity = intern("security");
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Sxpr ovnetif = intern("vnetif");
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Sxpr csecurity;
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VnetId vnet = {};
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char *device = NULL;
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char dev[IFNAMSIZ] = {};
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char *security = NULL;
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int sec;
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err = child_vnet(exp, oid, &vnet);
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if(err) goto exit;
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child_string(exp, ovnetif, &device);
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if(!device){
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snprintf(dev, IFNAMSIZ-1, "vnif%04x", ntohs(vnet.u.vnet16[VNETID_SIZE16 - 1]));
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device = dev;
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}
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csecurity = sxpr_child_value(exp, osecurity, intern("none"));
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err = stringof(csecurity, &security);
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if(err) goto exit;
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if(strcmp(security, "none")==0){
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sec = 0;
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} else if(strcmp(security, "auth")==0){
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sec = SA_AUTH;
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} else if(strcmp(security, "conf")==0){
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sec = SA_CONF;
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} else {
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err = -EINVAL;
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goto exit;
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}
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err = ctrl_vnet_add(&vnet, device, sec);
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exit:
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return err;
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}
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/** Delete a vnet.
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*
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* (vnet.del (id <id>))
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*
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* @param vnet vnet id
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* @return 0 on success, error code otherwise
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*/
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static int eval_vnet_del(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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Sxpr oid = intern("id");
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VnetId vnet = {};
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err = child_vnet(exp, oid, &vnet);
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if(err) goto exit;
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err = Vnet_del(&vnet);
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exit:
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return err;
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}
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static int eval_vnet_list(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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vnet_print(out);
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return err;
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}
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/** (vif.add (vnet <vnet>) (vmac <macaddr>))
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*/
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static int eval_vif_add(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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Sxpr ovnet = intern("vnet");
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Sxpr ovmac = intern("vmac");
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VnetId vnet = {};
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Vmac vmac = {};
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err = child_vnet(exp, ovnet, &vnet);
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if(err) goto exit;
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err = child_mac(exp, ovmac, vmac.mac);
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if(err) goto exit;
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err = ctrl_vif_add(&vnet, &vmac);
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exit:
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return err;
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}
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/** (vif.del (vnet <vnet>) (vmac <macaddr>))
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*/
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static int eval_vif_del(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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Sxpr ovnet = intern("vnet");
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Sxpr ovmac = intern("vmac");
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VnetId vnet = {};
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Vmac vmac = {};
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err = child_vnet(exp, ovnet, &vnet);
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if(err) goto exit;
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err = child_mac(exp, ovmac, vmac.mac);
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if(err) goto exit;
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err = ctrl_vif_del(&vnet, &vmac);
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exit:
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return err;
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}
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static int eval_vif_list(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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vif_print(out);
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return err;
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}
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/** Eval a vnet add request.
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*
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* (peer.add (addr <addr>) [(port <port>)])
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*
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* @param exp request
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* @param out output stream
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* @param data data
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* @return 0 on success, error code otherwise
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*/
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int eval_peer_add(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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Sxpr oaddr = intern("addr");
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Sxpr oport = intern("port");
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VarpAddr addr = { .family = AF_INET };
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int port;
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err = child_addr(exp, oaddr, &addr.u.ip4.s_addr);
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if(err < 0) goto exit;
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err = child_int(exp, oport, &port);
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if(err < 0){
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err = 0;
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port = varp_port;
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}
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if(err) goto exit;
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err = vnet_peer_add(&addr, port);
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exit:
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return err;
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}
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/** Eval a peer delete request.
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*
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* (peer.del (addr <addr>))
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*
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* @param vnetd vnetd
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* @param exp request
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* @param out output stream
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* @param data data
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* @return 0 on success, error code otherwise
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*/
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static int eval_peer_del(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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Sxpr oaddr = intern("addr");
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VarpAddr addr = { .family = AF_INET };
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err = child_addr(exp, oaddr, &addr.u.ip4.s_addr);
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if(err < 0) goto exit;
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err = vnet_peer_del(&addr);
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exit:
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return err;
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}
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/** Eval a peer list request.
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*
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* (peer.list)
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*
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* @param exp request
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* @param out output stream
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* @param data data
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* @return 0 on success, error code otherwise
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*/
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static int eval_peer_list(Sxpr exp, IOStream *out, void *data){
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int err = 0;
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vnet_peer_print(out);
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return err;
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}
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int vnet_eval_defs(SxprEval *defs, Sxpr exp, IOStream *io, void *data){
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int err = 0;
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SxprEval *def;
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iprintf("> "); objprint(iostdout, exp, 0); IOStream_print(iostdout, "\n");
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err = -ENOSYS;
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for(def = defs; !NONEP(def->name); def++){
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if(sxpr_elementp(exp, def->name)){
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err = def->fn(exp, io, data);
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break;
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}
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}
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iprintf("< err=%d\n", err);
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return err;
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}
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int vnet_eval(Sxpr exp, IOStream *io, void *data){
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SxprEval defs[] = {
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{ .name = intern("peer.add"), .fn = eval_peer_add },
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{ .name = intern("peer.del"), .fn = eval_peer_del },
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{ .name = intern("peer.list"), .fn = eval_peer_list },
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{ .name = intern("varp.flush"), .fn = eval_varp_flush },
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{ .name = intern("varp.list"), .fn = eval_varp_list },
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{ .name = intern("varp.mcaddr"), .fn = eval_varp_mcaddr },
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{ .name = intern("varp.print"), .fn = eval_varp_print },
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{ .name = intern("vif.add"), .fn = eval_vif_add },
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{ .name = intern("vif.del"), .fn = eval_vif_del },
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{ .name = intern("vif.list"), .fn = eval_vif_list },
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{ .name = intern("vnet.add"), .fn = eval_vnet_add },
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{ .name = intern("vnet.del"), .fn = eval_vnet_del },
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{ .name = intern("vnet.list"), .fn = eval_vnet_list },
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{ .name = ONONE, .fn = NULL } };
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return vnet_eval_defs(defs, exp, io, data);
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}
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