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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2014 Tom Gundersen <teg@jklm.no>
Copyright 2014 Susant Sahani
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <netinet/ether.h>
#include <arpa/inet.h>
#include <linux/if_bonding.h>
#include "conf-parser.h"
#include "sd-rtnl.h"
#include "networkd-netdev-bond.h"
#include "missing.h"
static const char* const bond_mode_table[_NETDEV_BOND_MODE_MAX] = {
[NETDEV_BOND_MODE_BALANCE_RR] = "balance-rr",
[NETDEV_BOND_MODE_ACTIVE_BACKUP] = "active-backup",
[NETDEV_BOND_MODE_BALANCE_XOR] = "balance-xor",
[NETDEV_BOND_MODE_BROADCAST] = "broadcast",
[NETDEV_BOND_MODE_802_3AD] = "802.3ad",
[NETDEV_BOND_MODE_BALANCE_TLB] = "balance-tlb",
[NETDEV_BOND_MODE_BALANCE_ALB] = "balance-alb",
};
DEFINE_STRING_TABLE_LOOKUP(bond_mode, BondMode);
DEFINE_CONFIG_PARSE_ENUM(config_parse_bond_mode, bond_mode, BondMode, "Failed to parse bond mode");
static const char* const bond_xmit_hash_policy_table[_NETDEV_BOND_XMIT_HASH_POLICY_MAX] = {
[NETDEV_BOND_XMIT_HASH_POLICY_LAYER2] = "layer2",
[NETDEV_BOND_XMIT_HASH_POLICY_LAYER34] = "layer3+4",
[NETDEV_BOND_XMIT_HASH_POLICY_LAYER23] = "layer2+3",
[NETDEV_BOND_XMIT_HASH_POLICY_ENCAP23] = "encap2+3",
[NETDEV_BOND_XMIT_HASH_POLICY_ENCAP34] = "encap3+4",
};
DEFINE_STRING_TABLE_LOOKUP(bond_xmit_hash_policy, BondXmitHashPolicy);
DEFINE_CONFIG_PARSE_ENUM(config_parse_bond_xmit_hash_policy,
bond_xmit_hash_policy,
BondXmitHashPolicy,
"Failed to parse bond transmit hash policy")
static const char* const bond_lacp_rate_table[_NETDEV_BOND_LACP_RATE_MAX] = {
[NETDEV_BOND_LACP_RATE_SLOW] = "slow",
[NETDEV_BOND_LACP_RATE_FAST] = "fast",
};
DEFINE_STRING_TABLE_LOOKUP(bond_lacp_rate, BondLacpRate);
DEFINE_CONFIG_PARSE_ENUM(config_parse_bond_lacp_rate, bond_lacp_rate, BondLacpRate, "Failed to parse bond lacp rate")
static uint8_t bond_mode_to_kernel(BondMode mode) {
switch (mode) {
case NETDEV_BOND_MODE_BALANCE_RR:
return BOND_MODE_ROUNDROBIN;
case NETDEV_BOND_MODE_ACTIVE_BACKUP:
return BOND_MODE_ACTIVEBACKUP;
case NETDEV_BOND_MODE_BALANCE_XOR:
return BOND_MODE_XOR;
case NETDEV_BOND_MODE_BROADCAST:
return BOND_MODE_BROADCAST;
case NETDEV_BOND_MODE_802_3AD:
return BOND_MODE_8023AD;
case NETDEV_BOND_MODE_BALANCE_TLB:
return BOND_MODE_TLB;
case NETDEV_BOND_MODE_BALANCE_ALB:
return BOND_MODE_ALB;
default:
return (uint8_t) -1;
}
}
static uint8_t bond_xmit_hash_policy_to_kernel(BondXmitHashPolicy policy) {
switch (policy) {
case NETDEV_BOND_XMIT_HASH_POLICY_LAYER2:
return BOND_XMIT_POLICY_LAYER2;
case NETDEV_BOND_XMIT_HASH_POLICY_LAYER34:
return BOND_XMIT_POLICY_LAYER34;
case NETDEV_BOND_XMIT_HASH_POLICY_LAYER23:
return BOND_XMIT_POLICY_LAYER23;
case NETDEV_BOND_XMIT_HASH_POLICY_ENCAP23:
return BOND_XMIT_POLICY_ENCAP23;
case NETDEV_BOND_XMIT_HASH_POLICY_ENCAP34:
return BOND_XMIT_POLICY_ENCAP34;
default:
return (uint8_t) -1;
}
}
static int netdev_bond_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
Bond *b = BOND(netdev);
int r;
assert(netdev);
assert(!link);
assert(b);
assert(m);
if (b->mode != _NETDEV_BOND_MODE_INVALID) {
r = sd_rtnl_message_append_u8(m, IFLA_BOND_MODE,
bond_mode_to_kernel(b->mode));
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_BOND_MODE attribute: %s",
strerror(-r));
return r;
}
}
if (b->xmit_hash_policy != _NETDEV_BOND_XMIT_HASH_POLICY_INVALID) {
r = sd_rtnl_message_append_u8(m, IFLA_BOND_XMIT_HASH_POLICY,
bond_xmit_hash_policy_to_kernel(b->xmit_hash_policy));
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_BOND_XMIT_HASH_POLICY attribute: %s",
strerror(-r));
return r;
}
}
if (b->lacp_rate != _NETDEV_BOND_LACP_RATE_INVALID &&
b->mode == NETDEV_BOND_MODE_802_3AD) {
r = sd_rtnl_message_append_u8(m, IFLA_BOND_AD_LACP_RATE, b->lacp_rate );
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_BOND_AD_LACP_RATE attribute: %s",
strerror(-r));
return r;
}
}
return 0;
}
static void bond_init(NetDev *netdev) {
Bond *b = BOND(netdev);
assert(netdev);
assert(b);
b->mode = _NETDEV_BOND_MODE_INVALID;
b->xmit_hash_policy = _NETDEV_BOND_XMIT_HASH_POLICY_INVALID;
b->lacp_rate = _NETDEV_BOND_LACP_RATE_INVALID;
}
const NetDevVTable bond_vtable = {
.object_size = sizeof(Bond),
.init = bond_init,
.sections = "Match\0NetDev\0Bond\0",
.fill_message_create = netdev_bond_fill_message_create,
.create_type = NETDEV_CREATE_MASTER,
};
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