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/*
* Copyright (C) IBM Corporation. 2007
* Author: Doug Maxey <dwm@austin.ibm.com>
* based on code written by "Prasanna Mumbai" <mumbai.prasanna@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <stddef.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/route.h>
#include "fw_context.h"
#include "fwparam.h"
#include "idbm_fields.h"
#include "iscsi_net_util.h"
#include "iscsi_err.h"
#include "config.h"
#include "iface.h"
/**
* fw_setup_nics - setup nics (ethXs) based on ibft net info
*
* If this is a offload card, this function does nothing. The
* net info is used by the iscsi iface settings for the iscsi
* function.
*/
int fw_setup_nics(void)
{
struct boot_context *context;
struct list_head targets;
char *iface_prev = NULL, transport[16];
int needs_bringup = 0, ret = 0, err;
INIT_LIST_HEAD(&targets);
ret = fw_get_targets(&targets);
if (ret || list_empty(&targets)) {
printf("Could not setup fw entries.\n");
return ISCSI_ERR_NO_OBJS_FOUND;
}
/*
* For each target in iBFT bring up required NIC and use routing
* to force iSCSI traffic through correct NIC
*/
list_for_each_entry(context, &targets, list) {
/* if it is a offload nic ignore it */
if (!net_get_transport_name_from_netdev(context->iface,
transport))
continue;
if (iface_prev == NULL || strcmp(context->iface, iface_prev)) {
/* Note: test above works because there is a
* maximum of two targets in the iBFT
*/
iface_prev = context->iface;
needs_bringup = 1;
}
err = net_setup_netdev(context->iface, context->ipaddr,
context->mask, context->gateway,
context->vlan,
context->target_ipaddr, needs_bringup);
if (err)
ret = err;
}
fw_free_targets(&targets);
if (ret)
return ISCSI_ERR;
else
return 0;
}
/**
* fw_get_entry - return boot context of portal used for boot
* @context: firmware info of portal
*
* Returns non-zero if no portal was used for boot.
*
* This function is not thread safe.
*/
int fw_get_entry(struct boot_context *context)
{
int ret;
ret = fwparam_ppc_boot_info(context);
if (ret)
ret = fwparam_sysfs_boot_info(context);
return ret;
}
/**
* fw_get_targets - get a boot_context struct for each target
* @list: list to add entires on.
*
* Returns zero if entries were found that can be traversed with the
* list.h helpers, or non-zero if no entries are found.
*
* fw_free_targets should be called to free the list.
*
* This function is not thread safe.
*/
int fw_get_targets(struct list_head *list)
{
int ret;
ret = fwparam_ppc_get_targets(list);
if (ret)
ret = fwparam_sysfs_get_targets(list);
return ret;
}
void fw_free_targets(struct list_head *list)
{
struct boot_context *curr, *tmp;
if (!list || list_empty(list))
return;
list_for_each_entry_safe(curr, tmp, list, list) {
list_del(&curr->list);
free(curr);
}
}
static void dump_initiator(struct boot_context *context)
{
struct iface_rec iface;
memset(&iface, 0, sizeof(iface));
iface_setup_defaults(&iface);
iface_setup_from_boot_context(&iface, context);
if (strlen(context->initiatorname))
printf("%s = %s\n", IFACE_INAME, context->initiatorname);
if (strlen(context->isid))
printf("%s = %s\n", IFACE_ISID, context->isid);
printf("%s = %s\n", IFACE_TRANSPORTNAME, iface.transport_name);
}
static void dump_target(struct boot_context *context)
{
if (strlen(context->targetname))
printf("%s = %s\n", NODE_NAME, context->targetname);
if (strlen(context->target_ipaddr))
printf(CONN_ADDR" = %s\n", 0, context->target_ipaddr);
printf(CONN_PORT" = %d\n", 0, context->target_port);
if (strlen(context->chap_name))
printf("%s = %s\n", SESSION_USERNAME, context->chap_name);
if (strlen(context->chap_password))
printf("%s = %s\n", SESSION_PASSWORD, context->chap_password);
if (strlen(context->chap_name_in))
printf("%s = %s\n", SESSION_USERNAME_IN, context->chap_name_in);
if (strlen(context->chap_password_in))
printf("%s = %s\n", SESSION_PASSWORD_IN,
context->chap_password_in);
if (strlen(context->lun))
printf("%s = %s\n", NODE_BOOT_LUN, context->lun);
}
static void dump_network(struct boot_context *context)
{
/* Dump the 8 byte mac address (not iser support) */
if (strlen(context->mac))
printf("%s = %s\n", IFACE_HWADDR, context->mac);
/*
* If the 'origin' field is 3 (IBFT_IP_PREFIX_ORIGIN_DHCP),
* then DHCP is used.
* Otherwise evaluate the 'dhcp' field, if this has a valid
* address then DHCP was used (broadcom sends 0.0.0.0).
*/
if ((context->origin == IBFT_IP_PREFIX_ORIGIN_DHCP) ||
(strlen(context->dhcp) && strcmp(context->dhcp, "0.0.0.0")))
printf("%s = DHCP\n", IFACE_BOOT_PROTO);
else
printf("%s = STATIC\n", IFACE_BOOT_PROTO);
if (strlen(context->ipaddr))
printf("%s = %s\n", IFACE_IPADDR, context->ipaddr);
if (strlen(context->mask))
printf("%s = %s\n", IFACE_SUBNET_MASK, context->mask);
if (strlen(context->gateway))
printf("%s = %s\n", IFACE_GATEWAY, context->gateway);
if (strlen(context->primary_dns))
printf("%s = %s\n", IFACE_PRIMARY_DNS, context->primary_dns);
if (strlen(context->secondary_dns))
printf("%s = %s\n", IFACE_SEC_DNS, context->secondary_dns);
if (strlen(context->vlan))
printf("%s = %s\n", IFACE_VLAN_ID, context->vlan);
if (strlen(context->iface))
printf("%s = %s\n", IFACE_NETNAME, context->iface);
}
/**
* fw_print_entry - print boot context info of portal used for boot
* @context: firmware info of portal
*
* Does not print anything if no portal was used for boot.
*
* TODO: Merge this in with idbm.c helpers.
*/
void fw_print_entry(struct boot_context *context)
{
printf("%s\n", ISCSI_BEGIN_REC);
dump_initiator(context);
dump_network(context);
dump_target(context);
printf("%s\n", ISCSI_END_REC);
}
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