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Merge branch 'tipc_net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

This commit is contained in:
David S. Miller 2012-04-20 20:40:31 -04:00
parent 2528a5dc43 9d52ce4bd3
commit 167de77fd4
11 changed files with 172 additions and 107 deletions
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20
net/tipc/addr.h
View File

@ -50,11 +50,29 @@ static inline u32 tipc_cluster_mask(u32 addr)
return addr & TIPC_CLUSTER_MASK;
}
static inline int in_own_cluster(u32 addr)
static inline int in_own_cluster_exact(u32 addr)
{
return !((addr ^ tipc_own_addr) >> 12);
}
/**
* in_own_node - test for node inclusion; <0.0.0> always matches
*/
static inline int in_own_node(u32 addr)
{
return (addr == tipc_own_addr) || !addr;
}
/**
* in_own_cluster - test for cluster inclusion; <0.0.0> always matches
*/
static inline int in_own_cluster(u32 addr)
{
return in_own_cluster_exact(addr) || !addr;
}
/**
* addr_domain - convert 2-bit scope value to equivalent message lookup domain
*

2
net/tipc/bearer.c
View File

@ -449,7 +449,7 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
if (tipc_in_scope(disc_domain, tipc_own_addr)) {
disc_domain = tipc_own_addr & TIPC_CLUSTER_MASK;
res = 0; /* accept any node in own cluster */
} else if (in_own_cluster(disc_domain))
} else if (in_own_cluster_exact(disc_domain))
res = 0; /* accept specified node in own cluster */
}
if (res) {

2
net/tipc/config.c
View File

@ -290,7 +290,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
/* Check command authorization */
if (likely(orig_node == tipc_own_addr)) {
if (likely(in_own_node(orig_node))) {
/* command is permitted */
} else if (cmd >= 0x8000) {
rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED

119
net/tipc/name_distr.c
View File

@ -68,12 +68,37 @@ struct distr_item {
};
/**
* List of externally visible publications by this node --
* that is, all publications having scope > TIPC_NODE_SCOPE.
* struct publ_list - list of publications made by this node
* @list: circular list of publications
* @list_size: number of entries in list
*/
struct publ_list {
struct list_head list;
u32 size;
};
static struct publ_list publ_zone = {
.list = LIST_HEAD_INIT(publ_zone.list),
.size = 0,
};
static struct publ_list publ_cluster = {
.list = LIST_HEAD_INIT(publ_cluster.list),
.size = 0,
};
static struct publ_list publ_node = {
.list = LIST_HEAD_INIT(publ_node.list),
.size = 0,
};
static struct publ_list *publ_lists[] = {
NULL,
&publ_zone, /* publ_lists[TIPC_ZONE_SCOPE] */
&publ_cluster, /* publ_lists[TIPC_CLUSTER_SCOPE] */
&publ_node /* publ_lists[TIPC_NODE_SCOPE] */
};
static LIST_HEAD(publ_root);
static u32 publ_cnt;
/**
* publ_to_item - add publication info to a publication message
@ -132,8 +157,11 @@ void tipc_named_publish(struct publication *publ)
struct sk_buff *buf;
struct distr_item *item;
list_add_tail(&publ->local_list, &publ_root);
publ_cnt++;
list_add_tail(&publ->local_list, &publ_lists[publ->scope]->list);
publ_lists[publ->scope]->size++;
if (publ->scope == TIPC_NODE_SCOPE)
return;
buf = named_prepare_buf(PUBLICATION, ITEM_SIZE, 0);
if (!buf) {
@ -156,7 +184,10 @@ void tipc_named_withdraw(struct publication *publ)
struct distr_item *item;
list_del(&publ->local_list);
publ_cnt--;
publ_lists[publ->scope]->size--;
if (publ->scope == TIPC_NODE_SCOPE)
return;
buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0);
if (!buf) {
@ -169,6 +200,39 @@ void tipc_named_withdraw(struct publication *publ)
named_cluster_distribute(buf);
}
/*
* named_distribute - prepare name info for bulk distribution to another node
*/
static void named_distribute(struct list_head *message_list, u32 node,
struct publ_list *pls, u32 max_item_buf)
{
struct publication *publ;
struct sk_buff *buf = NULL;
struct distr_item *item = NULL;
u32 left = 0;
u32 rest = pls->size * ITEM_SIZE;
list_for_each_entry(publ, &pls->list, local_list) {
if (!buf) {
left = (rest <= max_item_buf) ? rest : max_item_buf;
rest -= left;
buf = named_prepare_buf(PUBLICATION, left, node);
if (!buf) {
warn("Bulk publication failure\n");
return;
}
item = (struct distr_item *)msg_data(buf_msg(buf));
}
publ_to_item(item, publ);
item++;
left -= ITEM_SIZE;
if (!left) {
list_add_tail((struct list_head *)buf, message_list);
buf = NULL;
}
}
}
/**
* tipc_named_node_up - tell specified node about all publications by this node
*/
@ -177,13 +241,8 @@ void tipc_named_node_up(unsigned long nodearg)
{
struct tipc_node *n_ptr;
struct tipc_link *l_ptr;
struct publication *publ;
struct distr_item *item = NULL;
struct sk_buff *buf = NULL;
struct list_head message_list;
u32 node = (u32)nodearg;
u32 left = 0;
u32 rest;
u32 max_item_buf = 0;
/* compute maximum amount of publication data to send per message */
@ -207,28 +266,8 @@ void tipc_named_node_up(unsigned long nodearg)
INIT_LIST_HEAD(&message_list);
read_lock_bh(&tipc_nametbl_lock);
rest = publ_cnt * ITEM_SIZE;
list_for_each_entry(publ, &publ_root, local_list) {
if (!buf) {
left = (rest <= max_item_buf) ? rest : max_item_buf;
rest -= left;
buf = named_prepare_buf(PUBLICATION, left, node);
if (!buf) {
warn("Bulk publication distribution failure\n");
goto exit;
}
item = (struct distr_item *)msg_data(buf_msg(buf));
}
publ_to_item(item, publ);
item++;
left -= ITEM_SIZE;
if (!left) {
list_add_tail((struct list_head *)buf, &message_list);
buf = NULL;
}
}
exit:
named_distribute(&message_list, node, &publ_cluster, max_item_buf);
named_distribute(&message_list, node, &publ_zone, max_item_buf);
read_unlock_bh(&tipc_nametbl_lock);
tipc_link_send_names(&message_list, (u32)node);
@ -316,21 +355,23 @@ void tipc_named_recv(struct sk_buff *buf)
}
/**
* tipc_named_reinit - re-initialize local publication list
* tipc_named_reinit - re-initialize local publications
*
* This routine is called whenever TIPC networking is enabled.
* All existing publications by this node that have "cluster" or "zone" scope
* are updated to reflect the node's new network address.
* All name table entries published by this node are updated to reflect
* the node's new network address.
*/
void tipc_named_reinit(void)
{
struct publication *publ;
int scope;
write_lock_bh(&tipc_nametbl_lock);
list_for_each_entry(publ, &publ_root, local_list)
publ->node = tipc_own_addr;
for (scope = TIPC_ZONE_SCOPE; scope <= TIPC_NODE_SCOPE; scope++)
list_for_each_entry(publ, &publ_lists[scope]->list, local_list)
publ->node = tipc_own_addr;
write_unlock_bh(&tipc_nametbl_lock);
}

14
net/tipc/name_table.c
View File

@ -347,7 +347,7 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
info->cluster_list_size++;
}
if (node == tipc_own_addr) {
if (in_own_node(node)) {
list_add(&publ->node_list, &info->node_list);
info->node_list_size++;
}
@ -418,7 +418,7 @@ found:
/* Remove publication from node scope list, if present */
if (node == tipc_own_addr) {
if (in_own_node(node)) {
list_del(&publ->node_list);
info->node_list_size--;
}
@ -604,7 +604,7 @@ u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *destnode)
publ = list_first_entry(&info->node_list, struct publication,
node_list);
list_move_tail(&publ->node_list, &info->node_list);
} else if (in_own_cluster(*destnode)) {
} else if (in_own_cluster_exact(*destnode)) {
if (list_empty(&info->cluster_list))
goto no_match;
publ = list_first_entry(&info->cluster_list, struct publication,
@ -695,11 +695,12 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
}
write_lock_bh(&tipc_nametbl_lock);
table.local_publ_count++;
publ = tipc_nametbl_insert_publ(type, lower, upper, scope,
tipc_own_addr, port_ref, key);
if (publ && (scope != TIPC_NODE_SCOPE))
if (likely(publ)) {
table.local_publ_count++;
tipc_named_publish(publ);
}
write_unlock_bh(&tipc_nametbl_lock);
return publ;
}
@ -716,8 +717,7 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
publ = tipc_nametbl_remove_publ(type, lower, tipc_own_addr, ref, key);
if (likely(publ)) {
table.local_publ_count--;
if (publ->scope != TIPC_NODE_SCOPE)
tipc_named_withdraw(publ);
tipc_named_withdraw(publ);
write_unlock_bh(&tipc_nametbl_lock);
list_del_init(&publ->pport_list);
kfree(publ);

3
net/tipc/net.c
View File

@ -178,11 +178,12 @@ int tipc_net_start(u32 addr)
tipc_subscr_stop();
tipc_cfg_stop();
write_lock_bh(&tipc_net_lock);
tipc_own_addr = addr;
tipc_named_reinit();
tipc_port_reinit();
tipc_bclink_init();
write_unlock_bh(&tipc_net_lock);
tipc_k_signal((Handler)tipc_subscr_start, 0);
tipc_k_signal((Handler)tipc_cfg_init, 0);

2
net/tipc/node.c
View File

@ -72,7 +72,7 @@ struct tipc_node *tipc_node_find(u32 addr)
struct tipc_node *node;
struct hlist_node *pos;
if (unlikely(!in_own_cluster(addr)))
if (unlikely(!in_own_cluster_exact(addr)))
return NULL;
hlist_for_each_entry(node, pos, &node_htable[tipc_hashfn(addr)], hash) {

2
net/tipc/node_subscr.c
View File

@ -45,7 +45,7 @@
void tipc_nodesub_subscribe(struct tipc_node_subscr *node_sub, u32 addr,
void *usr_handle, net_ev_handler handle_down)
{
if (addr == tipc_own_addr) {
if (in_own_node(addr)) {
node_sub->node = NULL;
return;
}

101
net/tipc/port.c
View File

@ -59,16 +59,38 @@ static struct sk_buff *port_build_peer_abort_msg(struct tipc_port *, u32 err);
static void port_timeout(unsigned long ref);
static u32 port_peernode(struct tipc_port *p_ptr)
static inline u32 port_peernode(struct tipc_port *p_ptr)
{
return msg_destnode(&p_ptr->phdr);
}
static u32 port_peerport(struct tipc_port *p_ptr)
static inline u32 port_peerport(struct tipc_port *p_ptr)
{
return msg_destport(&p_ptr->phdr);
}
/*
* tipc_port_peer_msg - verify message was sent by connected port's peer
*
* Handles cases where the node's network address has changed from
* the default of <0.0.0> to its configured setting.
*/
int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg)
{
u32 peernode;
u32 orignode;
if (msg_origport(msg) != port_peerport(p_ptr))
return 0;
orignode = msg_orignode(msg);
peernode = port_peernode(p_ptr);
return (orignode == peernode) ||
(!orignode && (peernode == tipc_own_addr)) ||
(!peernode && (orignode == tipc_own_addr));
}
/**
* tipc_multicast - send a multicast message to local and remote destinations
*/
@ -221,18 +243,25 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
p_ptr->usr_handle = usr_handle;
p_ptr->max_pkt = MAX_PKT_DEFAULT;
p_ptr->ref = ref;
msg = &p_ptr->phdr;
tipc_msg_init(msg, importance, TIPC_NAMED_MSG, NAMED_H_SIZE, 0);
msg_set_origport(msg, ref);
INIT_LIST_HEAD(&p_ptr->wait_list);
INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list);
p_ptr->dispatcher = dispatcher;
p_ptr->wakeup = wakeup;
p_ptr->user_port = NULL;
k_init_timer(&p_ptr->timer, (Handler)port_timeout, ref);
spin_lock_bh(&tipc_port_list_lock);
INIT_LIST_HEAD(&p_ptr->publications);
INIT_LIST_HEAD(&p_ptr->port_list);
/*
* Must hold port list lock while initializing message header template
* to ensure a change to node's own network address doesn't result
* in template containing out-dated network address information
*/
spin_lock_bh(&tipc_port_list_lock);
msg = &p_ptr->phdr;
tipc_msg_init(msg, importance, TIPC_NAMED_MSG, NAMED_H_SIZE, 0);
msg_set_origport(msg, ref);
list_add_tail(&p_ptr->port_list, &ports);
spin_unlock_bh(&tipc_port_list_lock);
return p_ptr;
@ -415,7 +444,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
/* send returned message & dispose of rejected message */
src_node = msg_prevnode(msg);
if (src_node == tipc_own_addr)
if (in_own_node(src_node))
tipc_port_recv_msg(rbuf);
else
tipc_link_send(rbuf, src_node, msg_link_selector(rmsg));
@ -519,25 +548,21 @@ void tipc_port_recv_proto_msg(struct sk_buff *buf)
struct tipc_msg *msg = buf_msg(buf);
struct tipc_port *p_ptr;
struct sk_buff *r_buf = NULL;
u32 orignode = msg_orignode(msg);
u32 origport = msg_origport(msg);
u32 destport = msg_destport(msg);
int wakeable;
/* Validate connection */
p_ptr = tipc_port_lock(destport);
if (!p_ptr || !p_ptr->connected ||
(port_peernode(p_ptr) != orignode) ||
(port_peerport(p_ptr) != origport)) {
if (!p_ptr || !p_ptr->connected || !tipc_port_peer_msg(p_ptr, msg)) {
r_buf = tipc_buf_acquire(BASIC_H_SIZE);
if (r_buf) {
msg = buf_msg(r_buf);
tipc_msg_init(msg, TIPC_HIGH_IMPORTANCE, TIPC_CONN_MSG,
BASIC_H_SIZE, orignode);
BASIC_H_SIZE, msg_orignode(msg));
msg_set_errcode(msg, TIPC_ERR_NO_PORT);
msg_set_origport(msg, destport);
msg_set_destport(msg, origport);
msg_set_destport(msg, msg_origport(msg));
}
if (p_ptr)
tipc_port_unlock(p_ptr);
@ -646,8 +671,6 @@ void tipc_port_reinit(void)
spin_lock_bh(&tipc_port_list_lock);
list_for_each_entry(p_ptr, &ports, port_list) {
msg = &p_ptr->phdr;
if (msg_orignode(msg) == tipc_own_addr)
break;
msg_set_prevnode(msg, tipc_own_addr);
msg_set_orignode(msg, tipc_own_addr);
}
@ -676,6 +699,7 @@ static void port_dispatcher_sigh(void *dummy)
struct tipc_name_seq dseq;
void *usr_handle;
int connected;
int peer_invalid;
int published;
u32 message_type;
@ -696,6 +720,7 @@ static void port_dispatcher_sigh(void *dummy)
up_ptr = p_ptr->user_port;
usr_handle = up_ptr->usr_handle;
connected = p_ptr->connected;
peer_invalid = connected && !tipc_port_peer_msg(p_ptr, msg);
published = p_ptr->published;
if (unlikely(msg_errcode(msg)))
@ -705,8 +730,6 @@ static void port_dispatcher_sigh(void *dummy)
case TIPC_CONN_MSG:{
tipc_conn_msg_event cb = up_ptr->conn_msg_cb;
u32 peer_port = port_peerport(p_ptr);
u32 peer_node = port_peernode(p_ptr);
u32 dsz;
tipc_port_unlock(p_ptr);
@ -715,8 +738,7 @@ static void port_dispatcher_sigh(void *dummy)
if (unlikely(!connected)) {
if (tipc_connect2port(dref, &orig))
goto reject;
} else if ((msg_origport(msg) != peer_port) ||
(msg_orignode(msg) != peer_node))
} else if (peer_invalid)
goto reject;
dsz = msg_data_sz(msg);
if (unlikely(dsz &&
@ -768,14 +790,9 @@ err:
case TIPC_CONN_MSG:{
tipc_conn_shutdown_event cb =
up_ptr->conn_err_cb;
u32 peer_port = port_peerport(p_ptr);
u32 peer_node = port_peernode(p_ptr);
tipc_port_unlock(p_ptr);
if (!cb || !connected)
break;
if ((msg_origport(msg) != peer_port) ||
(msg_orignode(msg) != peer_node))
if (!cb || !connected || peer_invalid)
break;
tipc_disconnect(dref);
skb_pull(buf, msg_hdr_sz(msg));
@ -1152,17 +1169,6 @@ int tipc_port_recv_msg(struct sk_buff *buf)
/* validate destination & pass to port, otherwise reject message */
p_ptr = tipc_port_lock(destport);
if (likely(p_ptr)) {
if (likely(p_ptr->connected)) {
if ((unlikely(msg_origport(msg) !=
tipc_peer_port(p_ptr))) ||
(unlikely(msg_orignode(msg) !=
tipc_peer_node(p_ptr))) ||
(unlikely(!msg_connected(msg)))) {
err = TIPC_ERR_NO_PORT;
tipc_port_unlock(p_ptr);
goto reject;
}
}
err = p_ptr->dispatcher(p_ptr, buf);
tipc_port_unlock(p_ptr);
if (likely(!err))
@ -1170,7 +1176,7 @@ int tipc_port_recv_msg(struct sk_buff *buf)
} else {
err = TIPC_ERR_NO_PORT;
}
reject:
return tipc_reject_msg(buf, err);
}
@ -1211,7 +1217,7 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect,
p_ptr->congested = 1;
if (!tipc_port_congested(p_ptr)) {
destnode = port_peernode(p_ptr);
if (likely(destnode != tipc_own_addr))
if (likely(!in_own_node(destnode)))
res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect,
total_len, destnode);
else
@ -1261,13 +1267,17 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain,
msg_set_destport(msg, destport);
if (likely(destport || destnode)) {
if (likely(destnode == tipc_own_addr))
if (likely(in_own_node(destnode)))
res = tipc_port_recv_sections(p_ptr, num_sect,
msg_sect, total_len);
else
else if (tipc_own_addr)
res = tipc_link_send_sections_fast(p_ptr, msg_sect,
num_sect, total_len,
destnode);
else
res = tipc_port_reject_sections(p_ptr, msg, msg_sect,
num_sect, total_len,
TIPC_ERR_NO_NODE);
if (likely(res != -ELINKCONG)) {
if (res > 0)
p_ptr->sent++;
@ -1305,12 +1315,15 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest,
msg_set_destport(msg, dest->ref);
msg_set_hdr_sz(msg, BASIC_H_SIZE);
if (dest->node == tipc_own_addr)
if (in_own_node(dest->node))
res = tipc_port_recv_sections(p_ptr, num_sect, msg_sect,
total_len);
else
else if (tipc_own_addr)
res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect,
total_len, dest->node);
else
res = tipc_port_reject_sections(p_ptr, msg, msg_sect, num_sect,
total_len, TIPC_ERR_NO_NODE);
if (likely(res != -ELINKCONG)) {
if (res > 0)
p_ptr->sent++;
@ -1349,7 +1362,7 @@ int tipc_send_buf2port(u32 ref, struct tipc_portid const *dest,
skb_push(buf, BASIC_H_SIZE);
skb_copy_to_linear_data(buf, msg, BASIC_H_SIZE);
if (dest->node == tipc_own_addr)
if (in_own_node(dest->node))
res = tipc_port_recv_msg(buf);
else
res = tipc_send_buf_fast(buf, dest->node);

11
net/tipc/port.h
View File

@ -201,6 +201,7 @@ int tipc_shutdown(u32 ref);
* The following routines require that the port be locked on entry
*/
int tipc_disconnect_port(struct tipc_port *tp_ptr);
int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg);
/*
* TIPC messaging routines
@ -257,16 +258,6 @@ static inline struct tipc_port *tipc_port_deref(u32 ref)
return (struct tipc_port *)tipc_ref_deref(ref);
}
static inline u32 tipc_peer_port(struct tipc_port *p_ptr)
{
return msg_destport(&p_ptr->phdr);
}
static inline u32 tipc_peer_node(struct tipc_port *p_ptr)
{
return msg_destnode(&p_ptr->phdr);
}
static inline int tipc_port_congested(struct tipc_port *p_ptr)
{
return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2);

3
net/tipc/socket.c
View File

@ -1236,7 +1236,8 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
if (msg_mcast(msg))
return TIPC_ERR_NO_PORT;
if (sock->state == SS_CONNECTED) {
if (!msg_connected(msg))
if (!msg_connected(msg) ||
!tipc_port_peer_msg(tipc_sk_port(sk), msg))
return TIPC_ERR_NO_PORT;
} else if (sock->state == SS_CONNECTING) {
if (!msg_connected(msg) && (msg_errcode(msg) == 0))