--- /dev/null
+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2021 Felix Fietkau <nbd@nbd.name>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * 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.
+ */
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "netifd.h"
+#include "device.h"
+#include "system.h"
+
+struct bonding_device {
+ struct device dev;
+ device_state_cb set_state;
+
+ struct blob_attr *port_list;
+ struct vlist_tree ports;
+ int n_present;
+ int n_failed;
+
+ struct bonding_port *primary_port;
+ struct uloop_timeout retry;
+
+ struct bonding_config config;
+ struct blob_attr *config_data;
+ bool has_macaddr;
+ bool force_active;
+ bool active;
+};
+
+struct bonding_port {
+ struct vlist_node node;
+ struct bonding_device *bdev;
+ struct device_user dev;
+ bool set_primary;
+ bool present;
+ bool active;
+ char name[];
+};
+
+enum {
+ BOND_ATTR_PORTS,
+
+ BOND_ATTR_POLICY,
+ BOND_ATTR_XMIT_HASH_POLICY,
+ BOND_ATTR_ALL_PORTS_ACTIVE,
+
+ BOND_ATTR_MIN_LINKS,
+ BOND_ATTR_AD_ACTOR_SYSTEM,
+ BOND_ATTR_AD_ACTOR_SYS_PRIO,
+ BOND_ATTR_AD_SELECT,
+ BOND_ATTR_LACP_RATE,
+
+ BOND_ATTR_PACKETS_PER_PORT,
+ BOND_ATTR_LP_INTERVAL,
+ BOND_ATTR_DYNAMIC_LB,
+ BOND_ATTR_RESEND_IGMP,
+
+ BOND_ATTR_NUM_PEER_NOTIF,
+ BOND_ATTR_PRIMARY,
+ BOND_ATTR_PRIMARY_RESELECT,
+ BOND_ATTR_FAILOVER_MAC,
+
+ BOND_ATTR_MON_MODE,
+ BOND_ATTR_MON_INTERVAL,
+ BOND_ATTR_ARP_TARGET,
+ BOND_ATTR_ARP_ALL_TARGETS,
+ BOND_ATTR_ARP_VALIDATE,
+ BOND_ATTR_USE_CARRIER,
+ BOND_ATTR_UPDELAY,
+ BOND_ATTR_DOWNDELAY,
+
+ __BOND_ATTR_MAX,
+};
+
+static const struct blobmsg_policy bonding_attrs[__BOND_ATTR_MAX] = {
+ [BOND_ATTR_PORTS] = { "ports", BLOBMSG_TYPE_ARRAY },
+ [BOND_ATTR_POLICY] = { "policy", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_XMIT_HASH_POLICY] = { "xmit_hash_policy", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_ALL_PORTS_ACTIVE] = { "all_ports_active", BLOBMSG_TYPE_BOOL },
+ [BOND_ATTR_MIN_LINKS] = { "min_links", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_AD_ACTOR_SYSTEM] = { "ad_actor_system", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_AD_ACTOR_SYS_PRIO] = { "ad_actor_sys_prio", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_AD_SELECT] = { "ad_select", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_LACP_RATE] = { "lacp_rate", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_PACKETS_PER_PORT] = { "packets_per_port", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_LP_INTERVAL] = { "lp_interval", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_DYNAMIC_LB] = { "dynamic_lb", BLOBMSG_TYPE_BOOL },
+ [BOND_ATTR_RESEND_IGMP] = { "resend_igmp", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_NUM_PEER_NOTIF] = { "num_peer_notif", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_PRIMARY] = { "primary", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_PRIMARY_RESELECT] = { "primary_reselect", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_FAILOVER_MAC] = { "failover_mac", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_MON_MODE] = { "monitor_mode", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_MON_INTERVAL] = { "monitor_interval", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_ARP_TARGET] = { "arp_target", BLOBMSG_TYPE_ARRAY },
+ [BOND_ATTR_ARP_ALL_TARGETS] = { "arp_all_targets", BLOBMSG_TYPE_BOOL },
+ [BOND_ATTR_ARP_VALIDATE] = { "arp_validate", BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_USE_CARRIER] = { "use_carrier", BLOBMSG_TYPE_BOOL },
+ [BOND_ATTR_UPDELAY] = { "updelay", BLOBMSG_TYPE_INT32 },
+ [BOND_ATTR_DOWNDELAY] = { "downdelay", BLOBMSG_TYPE_INT32 },
+};
+
+static const struct uci_blob_param_info bonding_attr_info[__BOND_ATTR_MAX] = {
+ [BOND_ATTR_PORTS] = { .type = BLOBMSG_TYPE_STRING },
+ [BOND_ATTR_ARP_TARGET] = { .type = BLOBMSG_TYPE_STRING },
+};
+
+static const struct uci_blob_param_list bonding_attr_list = {
+ .n_params = __BOND_ATTR_MAX,
+ .params = bonding_attrs,
+ .info = bonding_attr_info,
+
+ .n_next = 1,
+ .next = { &device_attr_list },
+};
+
+static void
+bonding_reset_primary(struct bonding_device *bdev)
+{
+ struct bonding_port *bp;
+
+ bdev->primary_port = NULL;
+ if (!bdev->has_macaddr)
+ bdev->dev.settings.flags &= ~DEV_OPT_MACADDR;
+
+ vlist_for_each_element(&bdev->ports, bp, node) {
+ uint8_t *macaddr;
+
+ if (!bp->present)
+ continue;
+
+ if (bdev->primary_port && !bp->set_primary)
+ continue;
+
+ bdev->primary_port = bp;
+ if (bdev->has_macaddr)
+ continue;
+
+ if (bp->dev.dev->settings.flags & DEV_OPT_MACADDR)
+ macaddr = bp->dev.dev->settings.macaddr;
+ else
+ macaddr = bp->dev.dev->orig_settings.macaddr;
+ memcpy(bdev->dev.settings.macaddr, macaddr, 6);
+ bdev->dev.settings.flags |= DEV_OPT_MACADDR;
+ }
+}
+
+static int
+bonding_disable_port(struct bonding_port *bp, bool keep_dev)
+{
+ struct bonding_device *bdev = bp->bdev;
+
+ if (!bp->present || !bp->active)
+ return 0;
+
+ bp->active = false;
+
+ system_bonding_set_port(&bdev->dev, bp->dev.dev, false, bp->set_primary);
+ if (!keep_dev)
+ device_release(&bp->dev);
+
+ return 0;
+}
+
+static void
+bonding_remove_port(struct bonding_port *bp)
+{
+ struct bonding_device *bdev = bp->bdev;
+
+ if (!bp->present)
+ return;
+
+ if (bdev->dev.active)
+ bonding_disable_port(bp, false);
+
+ bp->present = false;
+ bp->bdev->n_present--;
+
+ if (bp == bdev->primary_port)
+ bonding_reset_primary(bdev);
+
+ bdev->force_active = false;
+ if (bdev->n_present == 0)
+ device_set_present(&bdev->dev, false);
+}
+
+static int
+bonding_set_active(struct bonding_device *bdev, bool active)
+{
+ int ret;
+
+ if (bdev->active == active)
+ return 0;
+
+ ret = system_bonding_set_device(&bdev->dev, active ? &bdev->config : NULL);
+ if (ret < 0)
+ return ret;
+
+ bdev->active = active;
+ return 0;
+}
+
+static int
+bonding_enable_port(struct bonding_port *bp)
+{
+ struct bonding_device *bdev = bp->bdev;
+ struct device *dev;
+ int ret;
+
+ if (!bp->present)
+ return 0;
+
+ ret = bonding_set_active(bdev, true);
+ if (ret)
+ goto error;
+
+ /* Disable IPv6 for bonding ports */
+ if (!(bp->dev.dev->settings.flags & DEV_OPT_IPV6)) {
+ bp->dev.dev->settings.ipv6 = 0;
+ bp->dev.dev->settings.flags |= DEV_OPT_IPV6;
+ }
+
+ ret = device_claim(&bp->dev);
+ if (ret < 0)
+ goto error;
+
+ dev = bp->dev.dev;
+ if (dev->settings.auth && !dev->auth_status)
+ return -1;
+
+ if (bp->active)
+ return 0;
+
+ ret = system_bonding_set_port(&bdev->dev, bp->dev.dev, true, bp->set_primary);
+ if (ret < 0) {
+ D(DEVICE, "Bonding port %s could not be added\n", bp->dev.dev->ifname);
+ goto error;
+ }
+
+ bp->active = true;
+ device_set_present(&bdev->dev, true);
+
+ return 0;
+
+error:
+ bdev->n_failed++;
+ bp->present = false;
+ bdev->n_present--;
+ device_release(&bp->dev);
+
+ return ret;
+}
+
+static void
+bonding_port_cb(struct device_user *dep, enum device_event ev)
+{
+ struct bonding_port *bp = container_of(dep, struct bonding_port, dev);
+ struct bonding_device *bdev = bp->bdev;
+ struct device *dev = dep->dev;
+
+ switch (ev) {
+ case DEV_EVENT_ADD:
+ if (bp->present)
+ break;
+
+ bp->present = true;
+ bdev->n_present++;
+
+ if (bdev->n_present == 1)
+ device_set_present(&bdev->dev, true);
+ fallthrough;
+ case DEV_EVENT_AUTH_UP:
+ if (!bdev->dev.active)
+ break;
+
+ if (bonding_enable_port(bp))
+ break;
+
+ /*
+ * Adding a bonding port can overwrite the bonding device mtu
+ * in the kernel, apply the bonding settings in case the
+ * bonding device mtu is set
+ */
+ system_if_apply_settings(&bdev->dev, &bdev->dev.settings,
+ DEV_OPT_MTU | DEV_OPT_MTU6);
+ break;
+ case DEV_EVENT_LINK_DOWN:
+ if (!dev->settings.auth)
+ break;
+
+ bonding_disable_port(bp, true);
+ break;
+ case DEV_EVENT_REMOVE:
+ if (dep->hotplug) {
+ vlist_delete(&bdev->ports, &bp->node);
+ return;
+ }
+
+ if (bp->present)
+ bonding_remove_port(bp);
+
+ break;
+ default:
+ return;
+ }
+}
+
+static struct bonding_port *
+bonding_create_port(struct bonding_device *bdev, const char *name,
+ struct device *dev, bool hotplug)
+{
+ struct bonding_port *bp;
+
+ bp = calloc(1, sizeof(*bp) + strlen(name) + 1);
+ if (!bp)
+ return NULL;
+
+ bp->bdev = bdev;
+ bp->dev.cb = bonding_port_cb;
+ bp->dev.hotplug = hotplug;
+ strcpy(bp->name, name);
+ bp->dev.dev = dev;
+ vlist_add(&bdev->ports, &bp->node, bp->name);
+ /*
+ * Need to look up the bonding port again as the above
+ * created pointer will be freed in case the bonding port
+ * already existed
+ */
+ if (!hotplug)
+ return bp;
+
+ bp = vlist_find(&bdev->ports, name, bp, node);
+ if (bp)
+ bp->node.version = -1;
+
+ return bp;
+}
+
+static void
+bonding_config_init(struct device *dev)
+{
+ struct bonding_device *bdev;
+ struct blob_attr *cur;
+ int rem;
+
+ bdev = container_of(dev, struct bonding_device, dev);
+
+ bdev->n_failed = 0;
+
+ vlist_update(&bdev->ports);
+ blobmsg_for_each_attr(cur, bdev->port_list, rem) {
+ const char *name = blobmsg_get_string(cur);
+
+ dev = device_get(name, true);
+ if (!dev)
+ continue;
+
+ bonding_create_port(bdev, name, dev, false);
+ }
+ vlist_flush(&bdev->ports);
+
+ if (bdev->n_failed)
+ uloop_timeout_set(&bdev->retry, 100);
+}
+
+static void
+bonding_apply_settings(struct bonding_device *bdev, struct blob_attr **tb)
+{
+ struct bonding_config *cfg = &bdev->config;
+ struct blob_attr *cur;
+
+ /* defaults */
+ memset(cfg, 0, sizeof(*cfg));
+ cfg->resend_igmp = 1;
+ cfg->ad_actor_sys_prio = 65535;
+ cfg->lp_interval = 1;
+ cfg->num_peer_notif = 1;
+
+#define cfg_item(_type, _field, _attr) \
+ do { \
+ if ((cur = tb[BOND_ATTR_##_attr]) != NULL) \
+ cfg->_field = blobmsg_get_##_type(cur); \
+ } while (0)
+
+ if ((cur = tb[BOND_ATTR_POLICY]) != NULL) {
+ const char *policy = blobmsg_get_string(cur);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(bonding_policy_str); i++) {
+ if (strcmp(policy, bonding_policy_str[i]) != 0)
+ continue;
+
+ cfg->policy = i;
+ break;
+ }
+ }
+
+ cfg_item(string, xmit_hash_policy, XMIT_HASH_POLICY);
+ cfg_item(bool, all_ports_active, ALL_PORTS_ACTIVE);
+ cfg_item(u32, min_links, MIN_LINKS);
+ cfg_item(string, ad_actor_system, AD_ACTOR_SYSTEM);
+ cfg_item(u32, ad_actor_sys_prio, AD_ACTOR_SYS_PRIO);
+ cfg_item(string, ad_select, AD_SELECT);
+ cfg_item(string, lacp_rate, LACP_RATE);
+ cfg_item(u32, packets_per_port, PACKETS_PER_PORT);
+ cfg_item(u32, lp_interval, LP_INTERVAL);
+ cfg_item(bool, dynamic_lb, DYNAMIC_LB);
+ cfg_item(u32, resend_igmp, RESEND_IGMP);
+ cfg_item(u32, num_peer_notif, NUM_PEER_NOTIF);
+ cfg_item(string, primary, PRIMARY);
+ cfg_item(string, primary_reselect, PRIMARY_RESELECT);
+ cfg_item(string, failover_mac, FAILOVER_MAC);
+ cfg_item(u32, monitor_interval, MON_INTERVAL);
+ cfg_item(bool, arp_all_targets, ARP_ALL_TARGETS);
+ cfg_item(string, arp_validate, ARP_VALIDATE);
+ cfg_item(bool, use_carrier, USE_CARRIER);
+ cfg_item(u32, updelay, UPDELAY);
+ cfg_item(u32, downdelay, DOWNDELAY);
+
+ if ((cur = tb[BOND_ATTR_MON_MODE]) != NULL &&
+ !strcmp(blobmsg_get_string(cur), "arp"))
+ cfg->monitor_arp = true;
+ cfg->arp_target = tb[BOND_ATTR_ARP_TARGET];
+#undef cfg_item
+}
+
+static enum dev_change_type
+bonding_reload(struct device *dev, struct blob_attr *attr)
+{
+ struct blob_attr *tb_dev[__DEV_ATTR_MAX];
+ struct blob_attr *tb_b[__BOND_ATTR_MAX];
+ enum dev_change_type ret = DEV_CONFIG_APPLIED;
+ unsigned long diff;
+ struct bonding_device *bdev;
+
+ BUILD_BUG_ON(sizeof(diff) < __BOND_ATTR_MAX / 8);
+ BUILD_BUG_ON(sizeof(diff) < __DEV_ATTR_MAX / 8);
+
+ bdev = container_of(dev, struct bonding_device, dev);
+ attr = blob_memdup(attr);
+
+ blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev,
+ blob_data(attr), blob_len(attr));
+ blobmsg_parse(bonding_attrs, __BOND_ATTR_MAX, tb_b,
+ blob_data(attr), blob_len(attr));
+
+ bdev->has_macaddr = tb_dev[DEV_ATTR_MACADDR];
+ if (bdev->primary_port && !bdev->primary_port->set_primary &&
+ tb_dev[DEV_ATTR_MACADDR])
+ bdev->primary_port = NULL;
+
+ bdev->port_list = tb_b[BOND_ATTR_PORTS];
+ device_init_settings(dev, tb_dev);
+ bonding_apply_settings(bdev, tb_b);
+
+ if (bdev->config_data) {
+ struct blob_attr *otb_dev[__DEV_ATTR_MAX];
+ struct blob_attr *otb_b[__BOND_ATTR_MAX];
+
+ blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, otb_dev,
+ blob_data(bdev->config_data), blob_len(bdev->config_data));
+
+ diff = 0;
+ uci_blob_diff(tb_dev, otb_dev, &device_attr_list, &diff);
+ if (diff)
+ ret = DEV_CONFIG_RESTART;
+
+ blobmsg_parse(bonding_attrs, __BOND_ATTR_MAX, otb_b,
+ blob_data(bdev->config_data), blob_len(bdev->config_data));
+
+ diff = 0;
+ uci_blob_diff(tb_b, otb_b, &bonding_attr_list, &diff);
+ if (diff & ~(1 << BOND_ATTR_PORTS))
+ ret = DEV_CONFIG_RESTART;
+
+ bonding_config_init(dev);
+ }
+
+ free(bdev->config_data);
+ bdev->config_data = attr;
+
+ return ret;
+}
+
+static int
+bonding_hotplug_add(struct device *dev, struct device *port, struct blob_attr *vlan)
+{
+ struct bonding_device *bdev = container_of(dev, struct bonding_device, dev);
+ struct bonding_port *bp;
+
+ bp = vlist_find(&bdev->ports, port->ifname, bp, node);
+ if (!bp)
+ bonding_create_port(bdev, port->ifname, port, true);
+
+ return 0;
+}
+
+static int
+bonding_hotplug_del(struct device *dev, struct device *port, struct blob_attr *vlan)
+{
+ struct bonding_device *bdev = container_of(dev, struct bonding_device, dev);
+ struct bonding_port *bp;
+
+ bp = vlist_find(&bdev->ports, port->ifname, bp, node);
+ if (!bp)
+ return UBUS_STATUS_NOT_FOUND;
+
+ if (bp->dev.hotplug)
+ vlist_delete(&bdev->ports, &bp->node);
+
+ return 0;
+}
+
+static int
+bonding_hotplug_prepare(struct device *dev, struct device **bonding_dev)
+{
+ struct bonding_device *bdev;
+
+ if (bonding_dev)
+ *bonding_dev = dev;
+
+ bdev = container_of(dev, struct bonding_device, dev);
+ bdev->force_active = true;
+ device_set_present(&bdev->dev, true);
+
+ return 0;
+}
+
+static void
+bonding_retry_ports(struct uloop_timeout *timeout)
+{
+ struct bonding_device *bdev = container_of(timeout, struct bonding_device, retry);
+ struct bonding_port *bp;
+
+ bdev->n_failed = 0;
+ vlist_for_each_element(&bdev->ports, bp, node) {
+ if (bp->present)
+ continue;
+
+ if (!bp->dev.dev->present)
+ continue;
+
+ bp->present = true;
+ bdev->n_present++;
+ bonding_enable_port(bp);
+ }
+}
+
+
+static void
+bonding_free_port(struct bonding_port *bp)
+{
+ struct device *dev = bp->dev.dev;
+
+ bonding_remove_port(bp);
+
+ device_lock();
+
+ device_remove_user(&bp->dev);
+
+ /*
+ * When reloading the config and moving a device from one master to
+ * another, the other master may have tried to claim this device
+ * before it was removed here.
+ * Ensure that claiming the device is retried by toggling its present
+ * state
+ */
+ if (dev->present) {
+ device_set_present(dev, false);
+ device_set_present(dev, true);
+ }
+
+ device_unlock();
+
+ free(bp);
+}
+
+static void
+bonding_port_update(struct vlist_tree *tree, struct vlist_node *node_new,
+ struct vlist_node *node_old)
+{
+ struct bonding_port *bp;
+ struct device *dev;
+
+ if (node_new) {
+ bp = container_of(node_new, struct bonding_port, node);
+
+ if (node_old) {
+ free(bp);
+ return;
+ }
+
+ dev = bp->dev.dev;
+ bp->dev.dev = NULL;
+ device_add_user(&bp->dev, dev);
+ }
+
+
+ if (node_old) {
+ bp = container_of(node_old, struct bonding_port, node);
+ bonding_free_port(bp);
+ }
+}
+
+static int
+bonding_set_down(struct bonding_device *bdev)
+{
+ struct bonding_port *bp;
+
+ bdev->set_state(&bdev->dev, false);
+
+ vlist_for_each_element(&bdev->ports, bp, node)
+ bonding_disable_port(bp, false);
+
+ bonding_set_active(bdev, false);
+
+ return 0;
+}
+
+static int
+bonding_set_up(struct bonding_device *bdev)
+{
+ struct bonding_port *bp;
+ int ret;
+
+ if (!bdev->n_present) {
+ if (!bdev->force_active)
+ return -ENOENT;
+
+ ret = bonding_set_active(bdev, true);
+ if (ret)
+ return ret;
+ }
+
+ bdev->n_failed = 0;
+ vlist_for_each_element(&bdev->ports, bp, node)
+ bonding_enable_port(bp);
+ if (bdev->n_failed)
+ uloop_timeout_set(&bdev->retry, 100);
+
+ if (!bdev->force_active && !bdev->n_present) {
+ /* initialization of all port interfaces failed */
+ bonding_set_active(bdev, false);
+ device_set_present(&bdev->dev, false);
+ return -ENOENT;
+ }
+
+ bonding_reset_primary(bdev);
+ ret = bdev->set_state(&bdev->dev, true);
+ if (ret < 0)
+ bonding_set_down(bdev);
+
+ return ret;
+}
+
+static int
+bonding_set_state(struct device *dev, bool up)
+{
+ struct bonding_device *bdev;
+
+ bdev = container_of(dev, struct bonding_device, dev);
+
+ if (up)
+ return bonding_set_up(bdev);
+ else
+ return bonding_set_down(bdev);
+}
+
+static struct device *
+bonding_create(const char *name, struct device_type *devtype,
+ struct blob_attr *attr)
+{
+ static const struct device_hotplug_ops bonding_ops = {
+ .prepare = bonding_hotplug_prepare,
+ .add = bonding_hotplug_add,
+ .del = bonding_hotplug_del
+ };
+ struct bonding_device *bdev;
+ struct device *dev = NULL;
+
+ bdev = calloc(1, sizeof(*bdev));
+ if (!bdev)
+ return NULL;
+
+ dev = &bdev->dev;
+
+ if (device_init(dev, devtype, name) < 0) {
+ device_cleanup(dev);
+ free(bdev);
+ return NULL;
+ }
+
+ dev->config_pending = true;
+ bdev->retry.cb = bonding_retry_ports;
+
+ bdev->set_state = dev->set_state;
+ dev->set_state = bonding_set_state;
+
+ dev->hotplug_ops = &bonding_ops;
+
+ vlist_init(&bdev->ports, avl_strcmp, bonding_port_update);
+ bdev->ports.keep_old = true;
+
+ bonding_reload(dev, attr);
+
+ return dev;
+}
+
+static void
+bonding_free(struct device *dev)
+{
+ struct bonding_device *bdev;
+
+ bdev = container_of(dev, struct bonding_device, dev);
+ vlist_flush_all(&bdev->ports);
+ free(bdev->config_data);
+ free(bdev);
+}
+
+static struct device_type bonding_device_type = {
+ .name = "bonding",
+ .config_params = &bonding_attr_list,
+
+ .bridge_capability = true,
+
+ .create = bonding_create,
+ .config_init = bonding_config_init,
+ .reload = bonding_reload,
+ .free = bonding_free,
+};
+
+static void __init bonding_device_type_init(void)
+{
+ device_type_add(&bonding_device_type);
+}
static void
system_set_dev_sysfs(const char *file, const char *ifname, const char *val)
{
+ if (!val)
+ return;
+
write_file(dev_sysfs_path(ifname, file), val);
}
+static void
+system_set_dev_sysfs_int(const char *file, const char *ifname, int val)
+{
+ char buf[16];
+
+ snprintf(buf, sizeof(buf), "%d", val);
+ system_set_dev_sysfs(file, ifname, buf);
+}
+
static int
system_get_dev_sysfs(const char *file, const char *ifname, char *buf, size_t buf_sz)
{
return ret;
}
+int system_bonding_set_device(struct device *dev, struct bonding_config *cfg)
+{
+ const char *ifname = dev->ifname;
+ struct blob_attr *cur;
+ char op = cfg ? '+' : '-';
+ char buf[64];
+ int rem;
+
+ snprintf(dev_buf, sizeof(dev_buf), "%s/class/net/bonding_masters", sysfs_path);
+ snprintf(buf, sizeof(buf), "%c%s", op, ifname);
+ write_file(dev_buf, buf);
+
+ if (!cfg)
+ return 0;
+
+ system_set_dev_sysfs("bonding/mode", ifname, bonding_policy_str[cfg->policy]);
+
+ system_set_dev_sysfs_int("bonding/all_ports_active", ifname, cfg->all_ports_active);
+
+ if (cfg->policy == BONDING_MODE_BALANCE_XOR ||
+ cfg->policy == BONDING_MODE_BALANCE_TLB ||
+ cfg->policy == BONDING_MODE_8023AD)
+ system_set_dev_sysfs("bonding/xmit_hash_policy", ifname, cfg->xmit_hash_policy);
+
+ if (cfg->policy == BONDING_MODE_8023AD) {
+ system_set_dev_sysfs("bonding/ad_actor_system", ifname, cfg->ad_actor_system);
+ system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname, cfg->ad_actor_sys_prio);
+ system_set_dev_sysfs("bonding/ad_select", ifname, cfg->ad_select);
+ system_set_dev_sysfs("bonding/lacp_rate", ifname, cfg->lacp_rate);
+ system_set_dev_sysfs_int("bonding/min_links", ifname, cfg->min_links);
+ }
+
+ if (cfg->policy == BONDING_MODE_BALANCE_RR)
+ system_set_dev_sysfs_int("bonding/packets_per_slave", ifname, cfg->packets_per_port);
+
+ if (cfg->policy == BONDING_MODE_BALANCE_TLB ||
+ cfg->policy == BONDING_MODE_BALANCE_ALB)
+ system_set_dev_sysfs_int("bonding/lp_interval", ifname, cfg->lp_interval);
+
+ if (cfg->policy == BONDING_MODE_BALANCE_TLB)
+ system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname, cfg->dynamic_lb);
+ system_set_dev_sysfs_int("bonding/resend_igmp", ifname, cfg->resend_igmp);
+ system_set_dev_sysfs_int("bonding/num_grat_arp", ifname, cfg->num_peer_notif);
+ system_set_dev_sysfs("bonding/primary_reselect", ifname, cfg->primary_reselect);
+ system_set_dev_sysfs("bonding/fail_over_mac", ifname, cfg->failover_mac);
+
+ system_set_dev_sysfs_int((cfg->monitor_arp ?
+ "bonding/arp_interval" :
+ "bonding/miimon"), ifname, cfg->monitor_interval);
+
+ blobmsg_for_each_attr(cur, cfg->arp_target, rem) {
+ snprintf(buf, sizeof(buf), "+%s", blobmsg_get_string(cur));
+ system_set_dev_sysfs("bonding/arp_ip_target", ifname, buf);
+ }
+
+ system_set_dev_sysfs_int("bonding/arp_all_targets", ifname, cfg->arp_all_targets);
+ if (cfg->policy < BONDING_MODE_8023AD)
+ system_set_dev_sysfs("bonding/arp_validate", ifname, cfg->arp_validate);
+ system_set_dev_sysfs_int("bonding/use_carrier", ifname, cfg->use_carrier);
+ if (!cfg->monitor_arp && cfg->monitor_interval) {
+ system_set_dev_sysfs_int("bonding/updelay", ifname, cfg->updelay);
+ system_set_dev_sysfs_int("bonding/downdelay", ifname, cfg->downdelay);
+ }
+
+ return 0;
+}
+
+int system_bonding_set_port(struct device *dev, struct device *port, bool add, bool primary)
+{
+ const char *port_name = port->ifname;
+ const char op_ch = add ? '+' : '-';
+ char buf[IFNAMSIZ + 2];
+
+ snprintf(buf, sizeof(buf), "%c%s", op_ch, port_name);
+ system_if_down(port);
+ system_set_dev_sysfs("bonding/slaves", dev->ifname, buf);
+ system_if_up(port);
+
+ if (primary)
+ system_set_dev_sysfs("bonding/primary", dev->ifname,
+ add ? port_name : "");
+
+ return 0;
+}
+
int system_if_resolve(struct device *dev)
{
struct ifreq ifr;
projects / project / netifd.git / commitdiff