static int bind_conn_to_iface(iscsi_conn_t *conn, struct iface_rec *iface)
{
struct iscsi_session *session = conn->session;
if (strcmp(iface->transport_name, DEFAULT_TRANSPORT))
return 0;
memset(session->netdev, 0, IFNAMSIZ);
if (iface_is_bound_by_hwaddr(iface)) {
if (net_get_netdev_from_hwaddress(iface->hwaddress,
session->netdev)) {
log_error("Cannot match %s to net/scsi interface.",
iface->hwaddress);
return -1;
}
} else if (iface_is_bound_by_netdev(iface)) {
strcpy(session->netdev, iface->netdev);
} else if (iface_is_bound_by_ipaddr(iface)) {
/*
* we never supported this but now with offload having to
* set the ip address in the iface, useris may forget to
* set the offload's transport type and we end up here by
* accident.
*/
log_error("Cannot bind %s to net/scsi interface. This is not "
"supported with software iSCSI (iscsi_tcp).",
iface->ipaddress);
return -1;
}
if (strlen(session->netdev)) {
struct ifreq ifr;
log_debug(4, "Binding session %d to %s", session->id,
session->netdev);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, session->netdev, IFNAMSIZ);
if (setsockopt(conn->socket_fd, SOL_SOCKET, SO_BINDTODEVICE,
session->netdev,
strlen(session->netdev) + 1) < 0) {
log_error("Could not bind connection %d to %s\n",
conn->id, session->netdev);
return -1;
}
}
return 0;
}
/*
* Routines to fill in the context values.
*/
static int fill_nic_context(char *subsys, char *id,
struct boot_context *context)
{
int rc;
rc = sysfs_get_int(id, subsys, "flags", &context->nic_flags);
/*
* Per spec we would need to check against Bit 0
* (Block Valid Flag), but some firmware only
* sets Bit 1 (Firmware Booting Selected).
* So any setting is deemed okay.
*/
if (!rc && (context->nic_flags == 0))
rc = ENODEV;
if (rc)
return rc;
rc = sysfs_get_str(id, subsys, "mac", context->mac,
sizeof(context->mac));
if (rc)
return rc;
/*
* Some offload cards like bnx2i use different MACs for the net and
* iscsi functions, so we have to follow the sysfs links.
*
* Other ibft implementations may not be tied to a pci function,
* so there will not be any device/net link, so we drop down to
* the MAC matching.
*
* And finally, some cards like be2iscsi and qla4xxx do not have
* any linux network subsys representation. These hosts will
* not have the ibft subsys. Instead the subsys is the scsi host
* number.
*/
if (!strcmp(IBFT_SUBSYS, subsys)) {
rc = get_iface_from_device(id, context);
if (rc) {
rc = net_get_netdev_from_hwaddress(context->mac,
context->iface);
if (rc)
return rc;
}
} else
strlcpy(context->scsi_host_name, subsys,
sizeof(context->scsi_host_name));
memset(&context->boot_nic, 0, sizeof(context->boot_nic));
snprintf(context->boot_nic, sizeof(context->boot_nic), "%s", id);
sysfs_get_str(id, subsys, "ip-addr", context->ipaddr,
sizeof(context->ipaddr));
sysfs_get_str(id, subsys, "vlan", context->vlan,
sizeof(context->vlan));
sysfs_get_str(id, subsys, "subnet-mask", context->mask,
sizeof(context->mask));
sysfs_get_str(id, subsys, "gateway", context->gateway,
sizeof(context->gateway));
sysfs_get_str(id, subsys, "primary-dns", context->primary_dns,
sizeof(context->primary_dns));
sysfs_get_str(id, subsys, "secondary-dns", context->secondary_dns,
sizeof(context->secondary_dns));
sysfs_get_str(id, subsys, "dhcp", context->dhcp,
sizeof(context->dhcp));
sysfs_get_int(id, subsys, "origin", (int *)&context->origin);
return 0;
}
