-/* Copyright 2011-2013 Autronica Fire and Security AS
+/* Copyright 2011-2014 Autronica Fire and Security AS
*
* 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
* any later version.
*
* Author(s):
- * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ * 2011-2014 Arvid Brodin, arvid.brodin@alten.se
*
* The HSR spec says never to forward the same frame twice on the same
* interface. A frame is identified by its source MAC address and its HSR
#include "hsr_netlink.h"
-struct node_entry {
- struct list_head mac_list;
- unsigned char MacAddressA[ETH_ALEN];
- unsigned char MacAddressB[ETH_ALEN];
- enum hsr_dev_idx AddrB_if; /* The local slave through which AddrB
- * frames are received from this node
- */
- unsigned long time_in[HSR_MAX_SLAVE];
- bool time_in_stale[HSR_MAX_SLAVE];
- u16 seq_out[HSR_MAX_DEV];
- struct rcu_head rcu_head;
+struct hsr_node {
+ struct list_head mac_list;
+ unsigned char MacAddressA[ETH_ALEN];
+ unsigned char MacAddressB[ETH_ALEN];
+ /* Local slave through which AddrB frames are received from this node */
+ enum hsr_port_type AddrB_port;
+ unsigned long time_in[HSR_PT_PORTS];
+ bool time_in_stale[HSR_PT_PORTS];
+ u16 seq_out[HSR_PT_PORTS];
+ struct rcu_head rcu_head;
};
-/* TODO: use hash lists for mac addresses (linux/jhash.h)? */
+/* TODO: use hash lists for mac addresses (linux/jhash.h)? */
-/* Search for mac entry. Caller must hold rcu read lock.
+/* seq_nr_after(a, b) - return true if a is after (higher in sequence than) b,
+ * false otherwise.
*/
-static struct node_entry *find_node_by_AddrA(struct list_head *node_db,
- const unsigned char addr[ETH_ALEN])
+static bool seq_nr_after(u16 a, u16 b)
{
- struct node_entry *node;
-
- list_for_each_entry_rcu(node, node_db, mac_list) {
- if (ether_addr_equal(node->MacAddressA, addr))
- return node;
- }
+ /* Remove inconsistency where
+ * seq_nr_after(a, b) == seq_nr_before(a, b)
+ */
+ if ((int) b - a == 32768)
+ return false;
- return NULL;
+ return (((s16) (b - a)) < 0);
}
+#define seq_nr_before(a, b) seq_nr_after((b), (a))
+#define seq_nr_after_or_eq(a, b) (!seq_nr_before((a), (b)))
+#define seq_nr_before_or_eq(a, b) (!seq_nr_after((a), (b)))
-/* Search for mac entry. Caller must hold rcu read lock.
- */
-static struct node_entry *find_node_by_AddrB(struct list_head *node_db,
- const unsigned char addr[ETH_ALEN])
+bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr)
{
- struct node_entry *node;
+ struct hsr_node *node;
- list_for_each_entry_rcu(node, node_db, mac_list) {
- if (ether_addr_equal(node->MacAddressB, addr))
- return node;
+ node = list_first_or_null_rcu(&hsr->self_node_db, struct hsr_node,
+ mac_list);
+ if (!node) {
+ WARN_ONCE(1, "HSR: No self node\n");
+ return false;
}
- return NULL;
-}
+ if (ether_addr_equal(addr, node->MacAddressA))
+ return true;
+ if (ether_addr_equal(addr, node->MacAddressB))
+ return true;
+ return false;
+}
/* Search for mac entry. Caller must hold rcu read lock.
*/
-struct node_entry *hsr_find_node(struct list_head *node_db, struct sk_buff *skb)
+static struct hsr_node *find_node_by_AddrA(struct list_head *node_db,
+ const unsigned char addr[ETH_ALEN])
{
- struct node_entry *node;
- struct ethhdr *ethhdr;
-
- if (!skb_mac_header_was_set(skb))
- return NULL;
-
- ethhdr = (struct ethhdr *) skb_mac_header(skb);
+ struct hsr_node *node;
list_for_each_entry_rcu(node, node_db, mac_list) {
- if (ether_addr_equal(node->MacAddressA, ethhdr->h_source))
- return node;
- if (ether_addr_equal(node->MacAddressB, ethhdr->h_source))
+ if (ether_addr_equal(node->MacAddressA, addr))
return node;
}
unsigned char addr_a[ETH_ALEN],
unsigned char addr_b[ETH_ALEN])
{
- struct node_entry *node, *oldnode;
+ struct hsr_node *node, *oldnode;
node = kmalloc(sizeof(*node), GFP_KERNEL);
if (!node)
rcu_read_lock();
oldnode = list_first_or_null_rcu(self_node_db,
- struct node_entry, mac_list);
+ struct hsr_node, mac_list);
if (oldnode) {
list_replace_rcu(&oldnode->mac_list, &node->mac_list);
rcu_read_unlock();
}
-/* Add/merge node to the database of nodes. 'skb' must contain an HSR
- * supervision frame.
- * - If the supervision header's MacAddressA field is not yet in the database,
- * this frame is from an hitherto unknown node - add it to the database.
- * - If the sender's MAC address is not the same as its MacAddressA address,
- * the node is using PICS_SUBS (address substitution). Record the sender's
- * address as the node's MacAddressB.
- *
- * This function needs to work even if the sender node has changed one of its
- * slaves' MAC addresses. In this case, there are four different cases described
- * by (Addr-changed, received-from) pairs as follows. Note that changing the
- * SlaveA address is equal to changing the node's own address:
- *
- * - (AddrB, SlaveB): The new AddrB will be recorded by PICS_SUBS code since
- * node == NULL.
- * - (AddrB, SlaveA): Will work as usual (the AddrB change won't be detected
- * from this frame).
- *
- * - (AddrA, SlaveB): The old node will be found. We need to detect this and
- * remove the node.
- * - (AddrA, SlaveA): A new node will be registered (non-PICS_SUBS at first).
- * The old one will be pruned after HSR_NODE_FORGET_TIME.
- *
- * We also need to detect if the sender's SlaveA and SlaveB cables have been
- * swapped.
+/* Allocate an hsr_node and add it to node_db. 'addr' is the node's AddressA;
+ * seq_out is used to initialize filtering of outgoing duplicate frames
+ * originating from the newly added node.
*/
-struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv,
- struct node_entry *node,
- struct sk_buff *skb,
- enum hsr_dev_idx dev_idx)
+struct hsr_node *hsr_add_node(struct list_head *node_db, unsigned char addr[],
+ u16 seq_out)
{
- struct hsr_sup_payload *hsr_sp;
- struct hsr_ethhdr_sp *hsr_ethsup;
- int i;
+ struct hsr_node *node;
unsigned long now;
-
- hsr_ethsup = (struct hsr_ethhdr_sp *) skb_mac_header(skb);
- hsr_sp = (struct hsr_sup_payload *) skb->data;
-
- if (node && !ether_addr_equal(node->MacAddressA, hsr_sp->MacAddressA)) {
- /* Node has changed its AddrA, frame was received from SlaveB */
- list_del_rcu(&node->mac_list);
- kfree_rcu(node, rcu_head);
- node = NULL;
- }
-
- if (node && (dev_idx == node->AddrB_if) &&
- !ether_addr_equal(node->MacAddressB, hsr_ethsup->ethhdr.h_source)) {
- /* Cables have been swapped */
- list_del_rcu(&node->mac_list);
- kfree_rcu(node, rcu_head);
- node = NULL;
- }
-
- if (node && (dev_idx != node->AddrB_if) &&
- (node->AddrB_if != HSR_DEV_NONE) &&
- !ether_addr_equal(node->MacAddressA, hsr_ethsup->ethhdr.h_source)) {
- /* Cables have been swapped */
- list_del_rcu(&node->mac_list);
- kfree_rcu(node, rcu_head);
- node = NULL;
- }
-
- if (node)
- return node;
-
- node = find_node_by_AddrA(&hsr_priv->node_db, hsr_sp->MacAddressA);
- if (node) {
- /* Node is known, but frame was received from an unknown
- * address. Node is PICS_SUBS capable; merge its AddrB.
- */
- ether_addr_copy(node->MacAddressB, hsr_ethsup->ethhdr.h_source);
- node->AddrB_if = dev_idx;
- return node;
- }
+ int i;
node = kzalloc(sizeof(*node), GFP_ATOMIC);
if (!node)
return NULL;
- ether_addr_copy(node->MacAddressA, hsr_sp->MacAddressA);
- ether_addr_copy(node->MacAddressB, hsr_ethsup->ethhdr.h_source);
- if (!ether_addr_equal(hsr_sp->MacAddressA, hsr_ethsup->ethhdr.h_source))
- node->AddrB_if = dev_idx;
- else
- node->AddrB_if = HSR_DEV_NONE;
+ ether_addr_copy(node->MacAddressA, addr);
/* We are only interested in time diffs here, so use current jiffies
* as initialization. (0 could trigger an spurious ring error warning).
*/
now = jiffies;
- for (i = 0; i < HSR_MAX_SLAVE; i++)
+ for (i = 0; i < HSR_PT_PORTS; i++)
node->time_in[i] = now;
- for (i = 0; i < HSR_MAX_DEV; i++)
- node->seq_out[i] = ntohs(hsr_ethsup->hsr_sup.sequence_nr) - 1;
+ for (i = 0; i < HSR_PT_PORTS; i++)
+ node->seq_out[i] = seq_out;
- list_add_tail_rcu(&node->mac_list, &hsr_priv->node_db);
+ list_add_tail_rcu(&node->mac_list, node_db);
return node;
}
+/* Get the hsr_node from which 'skb' was sent.
+ */
+struct hsr_node *hsr_get_node(struct list_head *node_db, struct sk_buff *skb,
+ bool is_sup)
+{
+ struct hsr_node *node;
+ struct ethhdr *ethhdr;
+ u16 seq_out;
+
+ if (!skb_mac_header_was_set(skb))
+ return NULL;
+
+ ethhdr = (struct ethhdr *) skb_mac_header(skb);
+
+ list_for_each_entry_rcu(node, node_db, mac_list) {
+ if (ether_addr_equal(node->MacAddressA, ethhdr->h_source))
+ return node;
+ if (ether_addr_equal(node->MacAddressB, ethhdr->h_source))
+ return node;
+ }
+
+ if (!is_sup)
+ return NULL; /* Only supervision frame may create node entry */
+
+ if (ethhdr->h_proto == htons(ETH_P_PRP)) {
+ /* Use the existing sequence_nr from the tag as starting point
+ * for filtering duplicate frames.
+ */
+ seq_out = hsr_get_skb_sequence_nr(skb) - 1;
+ } else {
+ WARN_ONCE(1, "%s: Non-HSR frame\n", __func__);
+ seq_out = 0;
+ }
+
+ return hsr_add_node(node_db, ethhdr->h_source, seq_out);
+}
+
+/* Use the Supervision frame's info about an eventual MacAddressB for merging
+ * nodes that has previously had their MacAddressB registered as a separate
+ * node.
+ */
+void hsr_handle_sup_frame(struct sk_buff *skb, struct hsr_node *node_curr,
+ struct hsr_port *port_rcv)
+{
+ struct hsr_node *node_real;
+ struct hsr_sup_payload *hsr_sp;
+ struct list_head *node_db;
+ int i;
+
+ skb_pull(skb, sizeof(struct hsr_ethhdr_sp));
+ hsr_sp = (struct hsr_sup_payload *) skb->data;
+
+ if (ether_addr_equal(eth_hdr(skb)->h_source, hsr_sp->MacAddressA))
+ /* Not sent from MacAddressB of a PICS_SUBS capable node */
+ goto done;
+
+ /* Merge node_curr (registered on MacAddressB) into node_real */
+ node_db = &port_rcv->hsr->node_db;
+ node_real = find_node_by_AddrA(node_db, hsr_sp->MacAddressA);
+ if (!node_real)
+ /* No frame received from AddrA of this node yet */
+ node_real = hsr_add_node(node_db, hsr_sp->MacAddressA,
+ HSR_SEQNR_START - 1);
+ if (!node_real)
+ goto done; /* No mem */
+ if (node_real == node_curr)
+ /* Node has already been merged */
+ goto done;
+
+ ether_addr_copy(node_real->MacAddressB, eth_hdr(skb)->h_source);
+ for (i = 0; i < HSR_PT_PORTS; i++) {
+ if (!node_curr->time_in_stale[i] &&
+ time_after(node_curr->time_in[i], node_real->time_in[i])) {
+ node_real->time_in[i] = node_curr->time_in[i];
+ node_real->time_in_stale[i] = node_curr->time_in_stale[i];
+ }
+ if (seq_nr_after(node_curr->seq_out[i], node_real->seq_out[i]))
+ node_real->seq_out[i] = node_curr->seq_out[i];
+ }
+ node_real->AddrB_port = port_rcv->type;
+
+ list_del_rcu(&node_curr->mac_list);
+ kfree_rcu(node_curr, rcu_head);
+
+done:
+ skb_push(skb, sizeof(struct hsr_ethhdr_sp));
+}
+
/* 'skb' is a frame meant for this host, that is to be passed to upper layers.
*
- * If the frame was sent by a node's B interface, replace the sender
+ * If the frame was sent by a node's B interface, replace the source
* address with that node's "official" address (MacAddressA) so that upper
* layers recognize where it came from.
*/
-void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb)
+void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb)
{
- struct ethhdr *ethhdr;
- struct node_entry *node;
-
if (!skb_mac_header_was_set(skb)) {
WARN_ONCE(1, "%s: Mac header not set\n", __func__);
return;
}
- ethhdr = (struct ethhdr *) skb_mac_header(skb);
- rcu_read_lock();
- node = find_node_by_AddrB(&hsr_priv->node_db, ethhdr->h_source);
- if (node)
- ether_addr_copy(ethhdr->h_source, node->MacAddressA);
- rcu_read_unlock();
+ memcpy(ð_hdr(skb)->h_source, node->MacAddressA, ETH_ALEN);
}
-
/* 'skb' is a frame meant for another host.
- * 'hsr_dev_idx' is the HSR index of the outgoing device
+ * 'port' is the outgoing interface
*
* Substitute the target (dest) MAC address if necessary, so the it matches the
* recipient interface MAC address, regardless of whether that is the
* This is needed to keep the packets flowing through switches that learn on
* which "side" the different interfaces are.
*/
-void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr,
- enum hsr_dev_idx dev_idx)
+void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
+ struct hsr_port *port)
{
- struct node_entry *node;
+ struct hsr_node *node_dst;
- rcu_read_lock();
- node = find_node_by_AddrA(&hsr_priv->node_db, ethhdr->h_dest);
- if (node && (node->AddrB_if == dev_idx))
- ether_addr_copy(ethhdr->h_dest, node->MacAddressB);
- rcu_read_unlock();
-}
+ if (!skb_mac_header_was_set(skb)) {
+ WARN_ONCE(1, "%s: Mac header not set\n", __func__);
+ return;
+ }
+ if (!is_unicast_ether_addr(eth_hdr(skb)->h_dest))
+ return;
-/* seq_nr_after(a, b) - return true if a is after (higher in sequence than) b,
- * false otherwise.
- */
-static bool seq_nr_after(u16 a, u16 b)
-{
- /* Remove inconsistency where
- * seq_nr_after(a, b) == seq_nr_before(a, b)
- */
- if ((int) b - a == 32768)
- return false;
+ node_dst = find_node_by_AddrA(&port->hsr->node_db, eth_hdr(skb)->h_dest);
+ if (!node_dst) {
+ WARN_ONCE(1, "%s: Unknown node\n", __func__);
+ return;
+ }
+ if (port->type != node_dst->AddrB_port)
+ return;
- return (((s16) (b - a)) < 0);
+ ether_addr_copy(eth_hdr(skb)->h_dest, node_dst->MacAddressB);
}
-#define seq_nr_before(a, b) seq_nr_after((b), (a))
-#define seq_nr_after_or_eq(a, b) (!seq_nr_before((a), (b)))
-#define seq_nr_before_or_eq(a, b) (!seq_nr_after((a), (b)))
-void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx)
+void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
+ u16 sequence_nr)
{
- if ((dev_idx < 0) || (dev_idx >= HSR_MAX_SLAVE)) {
- WARN_ONCE(1, "%s: Invalid dev_idx (%d)\n", __func__, dev_idx);
+ /* Don't register incoming frames without a valid sequence number. This
+ * ensures entries of restarted nodes gets pruned so that they can
+ * re-register and resume communications.
+ */
+ if (seq_nr_before(sequence_nr, node->seq_out[port->type]))
return;
- }
- node->time_in[dev_idx] = jiffies;
- node->time_in_stale[dev_idx] = false;
-}
+ node->time_in[port->type] = jiffies;
+ node->time_in_stale[port->type] = false;
+}
/* 'skb' is a HSR Ethernet frame (with a HSR tag inserted), with a valid
* ethhdr->h_source address and skb->mac_header set.
* 0 otherwise, or
* negative error code on error
*/
-int hsr_register_frame_out(struct node_entry *node, enum hsr_dev_idx dev_idx,
- struct sk_buff *skb)
+int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node,
+ u16 sequence_nr)
{
- struct hsr_ethhdr *hsr_ethhdr;
- u16 sequence_nr;
-
- if ((dev_idx < 0) || (dev_idx >= HSR_MAX_DEV)) {
- WARN_ONCE(1, "%s: Invalid dev_idx (%d)\n", __func__, dev_idx);
- return -EINVAL;
- }
- if (!skb_mac_header_was_set(skb)) {
- WARN_ONCE(1, "%s: Mac header not set\n", __func__);
- return -EINVAL;
- }
- hsr_ethhdr = (struct hsr_ethhdr *) skb_mac_header(skb);
-
- sequence_nr = ntohs(hsr_ethhdr->hsr_tag.sequence_nr);
- if (seq_nr_before_or_eq(sequence_nr, node->seq_out[dev_idx]))
+ if (seq_nr_before_or_eq(sequence_nr, node->seq_out[port->type]))
return 1;
- node->seq_out[dev_idx] = sequence_nr;
+ node->seq_out[port->type] = sequence_nr;
return 0;
}
-
-static bool is_late(struct node_entry *node, enum hsr_dev_idx dev_idx)
+static struct hsr_port *get_late_port(struct hsr_priv *hsr,
+ struct hsr_node *node)
{
- enum hsr_dev_idx other;
-
- if (node->time_in_stale[dev_idx])
- return true;
-
- if (dev_idx == HSR_DEV_SLAVE_A)
- other = HSR_DEV_SLAVE_B;
- else
- other = HSR_DEV_SLAVE_A;
-
- if (node->time_in_stale[other])
- return false;
+ if (node->time_in_stale[HSR_PT_SLAVE_A])
+ return hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
+ if (node->time_in_stale[HSR_PT_SLAVE_B])
+ return hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
+
+ if (time_after(node->time_in[HSR_PT_SLAVE_B],
+ node->time_in[HSR_PT_SLAVE_A] +
+ msecs_to_jiffies(MAX_SLAVE_DIFF)))
+ return hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
+ if (time_after(node->time_in[HSR_PT_SLAVE_A],
+ node->time_in[HSR_PT_SLAVE_B] +
+ msecs_to_jiffies(MAX_SLAVE_DIFF)))
+ return hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
- if (time_after(node->time_in[other], node->time_in[dev_idx] +
- msecs_to_jiffies(MAX_SLAVE_DIFF)))
- return true;
-
- return false;
+ return NULL;
}
/* Remove stale sequence_nr records. Called by timer every
* HSR_LIFE_CHECK_INTERVAL (two seconds or so).
*/
-void hsr_prune_nodes(struct hsr_priv *hsr_priv)
+void hsr_prune_nodes(unsigned long data)
{
- struct node_entry *node;
+ struct hsr_priv *hsr;
+ struct hsr_node *node;
+ struct hsr_port *port;
unsigned long timestamp;
unsigned long time_a, time_b;
+ hsr = (struct hsr_priv *) data;
+
rcu_read_lock();
- list_for_each_entry_rcu(node, &hsr_priv->node_db, mac_list) {
+ list_for_each_entry_rcu(node, &hsr->node_db, mac_list) {
/* Shorthand */
- time_a = node->time_in[HSR_DEV_SLAVE_A];
- time_b = node->time_in[HSR_DEV_SLAVE_B];
+ time_a = node->time_in[HSR_PT_SLAVE_A];
+ time_b = node->time_in[HSR_PT_SLAVE_B];
/* Check for timestamps old enough to risk wrap-around */
if (time_after(jiffies, time_a + MAX_JIFFY_OFFSET/2))
- node->time_in_stale[HSR_DEV_SLAVE_A] = true;
+ node->time_in_stale[HSR_PT_SLAVE_A] = true;
if (time_after(jiffies, time_b + MAX_JIFFY_OFFSET/2))
- node->time_in_stale[HSR_DEV_SLAVE_B] = true;
+ node->time_in_stale[HSR_PT_SLAVE_B] = true;
/* Get age of newest frame from node.
* At least one time_in is OK here; nodes get pruned long
* before both time_ins can get stale
*/
timestamp = time_a;
- if (node->time_in_stale[HSR_DEV_SLAVE_A] ||
- (!node->time_in_stale[HSR_DEV_SLAVE_B] &&
+ if (node->time_in_stale[HSR_PT_SLAVE_A] ||
+ (!node->time_in_stale[HSR_PT_SLAVE_B] &&
time_after(time_b, time_a)))
timestamp = time_b;
/* Warn of ring error only as long as we get frames at all */
if (time_is_after_jiffies(timestamp +
msecs_to_jiffies(1.5*MAX_SLAVE_DIFF))) {
-
- if (is_late(node, HSR_DEV_SLAVE_A))
- hsr_nl_ringerror(hsr_priv, node->MacAddressA,
- HSR_DEV_SLAVE_A);
- else if (is_late(node, HSR_DEV_SLAVE_B))
- hsr_nl_ringerror(hsr_priv, node->MacAddressA,
- HSR_DEV_SLAVE_B);
+ rcu_read_lock();
+ port = get_late_port(hsr, node);
+ if (port != NULL)
+ hsr_nl_ringerror(hsr, node->MacAddressA, port);
+ rcu_read_unlock();
}
/* Prune old entries */
if (time_is_before_jiffies(timestamp +
msecs_to_jiffies(HSR_NODE_FORGET_TIME))) {
- hsr_nl_nodedown(hsr_priv, node->MacAddressA);
+ hsr_nl_nodedown(hsr, node->MacAddressA);
list_del_rcu(&node->mac_list);
/* Note that we need to free this entry later: */
kfree_rcu(node, rcu_head);
}
-void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos,
+void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
unsigned char addr[ETH_ALEN])
{
- struct node_entry *node;
+ struct hsr_node *node;
if (!_pos) {
- node = list_first_or_null_rcu(&hsr_priv->node_db,
- struct node_entry, mac_list);
+ node = list_first_or_null_rcu(&hsr->node_db,
+ struct hsr_node, mac_list);
if (node)
ether_addr_copy(addr, node->MacAddressA);
return node;
}
node = _pos;
- list_for_each_entry_continue_rcu(node, &hsr_priv->node_db, mac_list) {
+ list_for_each_entry_continue_rcu(node, &hsr->node_db, mac_list) {
ether_addr_copy(addr, node->MacAddressA);
return node;
}
}
-int hsr_get_node_data(struct hsr_priv *hsr_priv,
+int hsr_get_node_data(struct hsr_priv *hsr,
const unsigned char *addr,
unsigned char addr_b[ETH_ALEN],
unsigned int *addr_b_ifindex,
int *if2_age,
u16 *if2_seq)
{
- struct node_entry *node;
+ struct hsr_node *node;
+ struct hsr_port *port;
unsigned long tdiff;
rcu_read_lock();
- node = find_node_by_AddrA(&hsr_priv->node_db, addr);
+ node = find_node_by_AddrA(&hsr->node_db, addr);
if (!node) {
rcu_read_unlock();
return -ENOENT; /* No such entry */
ether_addr_copy(addr_b, node->MacAddressB);
- tdiff = jiffies - node->time_in[HSR_DEV_SLAVE_A];
- if (node->time_in_stale[HSR_DEV_SLAVE_A])
+ tdiff = jiffies - node->time_in[HSR_PT_SLAVE_A];
+ if (node->time_in_stale[HSR_PT_SLAVE_A])
*if1_age = INT_MAX;
#if HZ <= MSEC_PER_SEC
else if (tdiff > msecs_to_jiffies(INT_MAX))
else
*if1_age = jiffies_to_msecs(tdiff);
- tdiff = jiffies - node->time_in[HSR_DEV_SLAVE_B];
- if (node->time_in_stale[HSR_DEV_SLAVE_B])
+ tdiff = jiffies - node->time_in[HSR_PT_SLAVE_B];
+ if (node->time_in_stale[HSR_PT_SLAVE_B])
*if2_age = INT_MAX;
#if HZ <= MSEC_PER_SEC
else if (tdiff > msecs_to_jiffies(INT_MAX))
*if2_age = jiffies_to_msecs(tdiff);
/* Present sequence numbers as if they were incoming on interface */
- *if1_seq = node->seq_out[HSR_DEV_SLAVE_B];
- *if2_seq = node->seq_out[HSR_DEV_SLAVE_A];
+ *if1_seq = node->seq_out[HSR_PT_SLAVE_B];
+ *if2_seq = node->seq_out[HSR_PT_SLAVE_A];
- if ((node->AddrB_if != HSR_DEV_NONE) && hsr_priv->slave[node->AddrB_if])
- *addr_b_ifindex = hsr_priv->slave[node->AddrB_if]->ifindex;
- else
+ if (node->AddrB_port != HSR_PT_NONE) {
+ port = hsr_port_get_hsr(hsr, node->AddrB_port);
+ *addr_b_ifindex = port->dev->ifindex;
+ } else {
*addr_b_ifindex = -1;
+ }
rcu_read_unlock();
projects / cascardo / linux.git / blobdiff