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-rw-r--r--net/tipc/config.c4
-rw-r--r--net/tipc/net.c2
-rw-r--r--net/tipc/port.c87
-rw-r--r--net/tipc/port.h5
-rw-r--r--net/tipc/ref.c20
-rw-r--r--net/tipc/ref.h1
-rw-r--r--net/tipc/socket.c118
-rw-r--r--net/tipc/socket.h3
8 files changed, 133 insertions, 107 deletions
diff --git a/net/tipc/config.c b/net/tipc/config.c
index 2b42403ad33a..876f4c6a2631 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -35,7 +35,7 @@
*/
#include "core.h"
-#include "port.h"
+#include "socket.h"
#include "name_table.h"
#include "config.h"
#include "server.h"
@@ -266,7 +266,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
rep_tlv_buf = tipc_media_get_names();
break;
case TIPC_CMD_SHOW_PORTS:
- rep_tlv_buf = tipc_port_get_ports();
+ rep_tlv_buf = tipc_sk_socks_show();
break;
case TIPC_CMD_SHOW_STATS:
rep_tlv_buf = tipc_show_stats();
diff --git a/net/tipc/net.c b/net/tipc/net.c
index 7fcc94998fea..421dd89152ac 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -111,7 +111,7 @@ int tipc_net_start(u32 addr)
tipc_own_addr = addr;
tipc_named_reinit();
- tipc_port_reinit();
+ tipc_sk_reinit();
res = tipc_bclink_init();
if (res)
return res;
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 1efa2982d2d2..cea3730fe026 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -63,93 +63,6 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg)
(!peernode && (orignode == tipc_own_addr));
}
-static int port_print(struct tipc_port *p_ptr, char *buf, int len, int full_id)
-{
- struct publication *publ;
- int ret;
-
- if (full_id)
- ret = tipc_snprintf(buf, len, "<%u.%u.%u:%u>:",
- tipc_zone(tipc_own_addr),
- tipc_cluster(tipc_own_addr),
- tipc_node(tipc_own_addr), p_ptr->ref);
- else
- ret = tipc_snprintf(buf, len, "%-10u:", p_ptr->ref);
-
- if (p_ptr->connected) {
- u32 dport = tipc_port_peerport(p_ptr);
- u32 destnode = tipc_port_peernode(p_ptr);
-
- ret += tipc_snprintf(buf + ret, len - ret,
- " connected to <%u.%u.%u:%u>",
- tipc_zone(destnode),
- tipc_cluster(destnode),
- tipc_node(destnode), dport);
- if (p_ptr->conn_type != 0)
- ret += tipc_snprintf(buf + ret, len - ret,
- " via {%u,%u}", p_ptr->conn_type,
- p_ptr->conn_instance);
- } else if (p_ptr->published) {
- ret += tipc_snprintf(buf + ret, len - ret, " bound to");
- list_for_each_entry(publ, &p_ptr->publications, pport_list) {
- if (publ->lower == publ->upper)
- ret += tipc_snprintf(buf + ret, len - ret,
- " {%u,%u}", publ->type,
- publ->lower);
- else
- ret += tipc_snprintf(buf + ret, len - ret,
- " {%u,%u,%u}", publ->type,
- publ->lower, publ->upper);
- }
- }
- ret += tipc_snprintf(buf + ret, len - ret, "\n");
- return ret;
-}
-
-struct sk_buff *tipc_port_get_ports(void)
-{
- struct sk_buff *buf;
- struct tlv_desc *rep_tlv;
- char *pb;
- int pb_len;
- struct tipc_port *p_ptr;
- int str_len = 0;
-
- buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
- if (!buf)
- return NULL;
- rep_tlv = (struct tlv_desc *)buf->data;
- pb = TLV_DATA(rep_tlv);
- pb_len = ULTRA_STRING_MAX_LEN;
-
- spin_lock_bh(&tipc_port_list_lock);
- list_for_each_entry(p_ptr, &tipc_socks, port_list) {
- spin_lock_bh(p_ptr->lock);
- str_len += port_print(p_ptr, pb, pb_len, 0);
- spin_unlock_bh(p_ptr->lock);
- }
- spin_unlock_bh(&tipc_port_list_lock);
- str_len += 1; /* for "\0" */
- skb_put(buf, TLV_SPACE(str_len));
- TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
-
- return buf;
-}
-
-void tipc_port_reinit(void)
-{
- struct tipc_port *p_ptr;
- struct tipc_msg *msg;
-
- spin_lock_bh(&tipc_port_list_lock);
- list_for_each_entry(p_ptr, &tipc_socks, port_list) {
- msg = &p_ptr->phdr;
- msg_set_prevnode(msg, tipc_own_addr);
- msg_set_orignode(msg, tipc_own_addr);
- }
- spin_unlock_bh(&tipc_port_list_lock);
-}
-
int tipc_publish(struct tipc_port *p_ptr, unsigned int scope,
struct tipc_name_seq const *seq)
{
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 4c6cfdd36351..4a3c54e5d69c 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -73,7 +73,6 @@ struct tipc_port {
u32 max_pkt;
u32 ref;
struct tipc_msg phdr;
- struct list_head port_list;
struct list_head publications;
u32 pub_count;
u32 probing_state;
@@ -81,9 +80,6 @@ struct tipc_port {
struct timer_list timer;
};
-extern struct list_head tipc_socks;
-extern spinlock_t tipc_port_list_lock;
-
/*
* TIPC port manipulation routines
*/
@@ -100,7 +96,6 @@ int tipc_withdraw(struct tipc_port *p_ptr, unsigned int scope,
int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg);
-struct sk_buff *tipc_port_get_ports(void);
void tipc_port_reinit(void);
/**
diff --git a/net/tipc/ref.c b/net/tipc/ref.c
index 3d4ecd754eee..7fc2740846e3 100644
--- a/net/tipc/ref.c
+++ b/net/tipc/ref.c
@@ -264,3 +264,23 @@ void *tipc_ref_lock(u32 ref)
}
return NULL;
}
+
+/* tipc_ref_lock_next - lock & return next object after referenced one
+*/
+void *tipc_ref_lock_next(u32 *ref)
+{
+ struct reference *entry;
+ uint index = *ref & tipc_ref_table.index_mask;
+
+ while (++index < tipc_ref_table.capacity) {
+ entry = &tipc_ref_table.entries[index];
+ if (!entry->object)
+ continue;
+ spin_lock_bh(&entry->lock);
+ *ref = entry->ref;
+ if (entry->object)
+ return entry->object;
+ spin_unlock_bh(&entry->lock);
+ }
+ return NULL;
+}
diff --git a/net/tipc/ref.h b/net/tipc/ref.h
index d01aa1df63b8..e236fa520a1d 100644
--- a/net/tipc/ref.h
+++ b/net/tipc/ref.h
@@ -44,5 +44,6 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock);
void tipc_ref_discard(u32 ref);
void *tipc_ref_lock(u32 ref);
+void *tipc_ref_lock_next(u32 *ref);
#endif
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index f2be4c2e20bb..ddc2f8c6fced 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -40,6 +40,7 @@
#include "node.h"
#include "link.h"
#include <linux/export.h>
+#include "config.h"
#define SS_LISTENING -1 /* socket is listening */
#define SS_READY -2 /* socket is connectionless */
@@ -63,9 +64,6 @@ static const struct proto_ops msg_ops;
static struct proto tipc_proto;
static struct proto tipc_proto_kern;
-DEFINE_SPINLOCK(tipc_port_list_lock);
-LIST_HEAD(tipc_socks);
-
/*
* Revised TIPC socket locking policy:
*
@@ -113,6 +111,17 @@ LIST_HEAD(tipc_socks);
#include "socket.h"
+/* tipc_sk_lock_next: find & lock next socket in registry from given port number
+*/
+static struct tipc_sock *tipc_sk_lock_next(u32 *ref)
+{
+ struct tipc_port *port = (struct tipc_port *)tipc_ref_lock_next(ref);
+
+ if (!port)
+ return NULL;
+ return tipc_port_to_sock(port);
+}
+
/**
* advance_rx_queue - discard first buffer in socket receive queue
*
@@ -203,16 +212,11 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
port->max_pkt = MAX_PKT_DEFAULT;
port->ref = ref;
INIT_LIST_HEAD(&port->publications);
- INIT_LIST_HEAD(&port->port_list);
- /* Guard against race during node address update */
- spin_lock_bh(&tipc_port_list_lock);
msg = &port->phdr;
tipc_msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG,
NAMED_H_SIZE, 0);
msg_set_origport(msg, ref);
- list_add_tail(&port->port_list, &tipc_socks);
- spin_unlock_bh(&tipc_port_list_lock);
/* Finish initializing socket data structures */
sock->ops = ops;
@@ -377,9 +381,6 @@ static int tipc_release(struct socket *sock)
tipc_link_xmit(buf, dnode, port->ref);
tipc_node_remove_conn(dnode, port->ref);
}
- spin_lock_bh(&tipc_port_list_lock);
- list_del(&port->port_list);
- spin_unlock_bh(&tipc_port_list_lock);
k_term_timer(&port->timer);
/* Discard any remaining (connection-based) messages in receive queue */
@@ -2043,6 +2044,101 @@ static void tipc_sk_timeout(unsigned long ref)
tipc_link_xmit(buf, msg_destnode(msg), msg_link_selector(msg));
}
+static int tipc_sk_show(struct tipc_port *port, char *buf,
+ int len, int full_id)
+{
+ struct publication *publ;
+ int ret;
+
+ if (full_id)
+ ret = tipc_snprintf(buf, len, "<%u.%u.%u:%u>:",
+ tipc_zone(tipc_own_addr),
+ tipc_cluster(tipc_own_addr),
+ tipc_node(tipc_own_addr), port->ref);
+ else
+ ret = tipc_snprintf(buf, len, "%-10u:", port->ref);
+
+ if (port->connected) {
+ u32 dport = tipc_port_peerport(port);
+ u32 destnode = tipc_port_peernode(port);
+
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " connected to <%u.%u.%u:%u>",
+ tipc_zone(destnode),
+ tipc_cluster(destnode),
+ tipc_node(destnode), dport);
+ if (port->conn_type != 0)
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " via {%u,%u}", port->conn_type,
+ port->conn_instance);
+ } else if (port->published) {
+ ret += tipc_snprintf(buf + ret, len - ret, " bound to");
+ list_for_each_entry(publ, &port->publications, pport_list) {
+ if (publ->lower == publ->upper)
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " {%u,%u}", publ->type,
+ publ->lower);
+ else
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " {%u,%u,%u}", publ->type,
+ publ->lower, publ->upper);
+ }
+ }
+ ret += tipc_snprintf(buf + ret, len - ret, "\n");
+ return ret;
+}
+
+struct sk_buff *tipc_sk_socks_show(void)
+{
+ struct sk_buff *buf;
+ struct tlv_desc *rep_tlv;
+ char *pb;
+ int pb_len;
+ struct tipc_sock *tsk;
+ int str_len = 0;
+ u32 ref = 0;
+
+ buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
+ if (!buf)
+ return NULL;
+ rep_tlv = (struct tlv_desc *)buf->data;
+ pb = TLV_DATA(rep_tlv);
+ pb_len = ULTRA_STRING_MAX_LEN;
+
+ tsk = tipc_sk_lock_next(&ref);
+ for (; tsk; tsk = tipc_sk_lock_next(&ref)) {
+ bh_lock_sock(&tsk->sk);
+ str_len += tipc_sk_show(&tsk->port, pb + str_len,
+ pb_len - str_len, 0);
+ bh_unlock_sock(&tsk->sk);
+ tipc_port_unlock(&tsk->port);
+ }
+ str_len += 1; /* for "\0" */
+ skb_put(buf, TLV_SPACE(str_len));
+ TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
+
+ return buf;
+}
+
+/* tipc_sk_reinit: set non-zero address in all existing sockets
+ * when we go from standalone to network mode.
+ */
+void tipc_sk_reinit(void)
+{
+ struct tipc_msg *msg;
+ u32 ref = 0;
+ struct tipc_sock *tsk = tipc_sk_lock_next(&ref);
+
+ for (; tsk; tsk = tipc_sk_lock_next(&ref)) {
+ bh_lock_sock(&tsk->sk);
+ msg = &tsk->port.phdr;
+ msg_set_prevnode(msg, tipc_own_addr);
+ msg_set_orignode(msg, tipc_own_addr);
+ bh_unlock_sock(&tsk->sk);
+ tipc_port_unlock(&tsk->port);
+ }
+}
+
/**
* tipc_setsockopt - set socket option
* @sock: socket structure
diff --git a/net/tipc/socket.h b/net/tipc/socket.h
index 1405633362f5..5d515be604a9 100644
--- a/net/tipc/socket.h
+++ b/net/tipc/socket.h
@@ -79,7 +79,8 @@ static inline int tipc_sk_conn_cong(struct tipc_sock *tsk)
}
int tipc_sk_rcv(struct sk_buff *buf);
-
+struct sk_buff *tipc_sk_socks_show(void);
void tipc_sk_mcast_rcv(struct sk_buff *buf);
+void tipc_sk_reinit(void);
#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.