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Diffstat (limited to 'net/rds/rds.h')
-rw-r--r--net/rds/rds.h88
1 files changed, 59 insertions, 29 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 60b3b787fbdb..c4dcf654d8fe 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -10,6 +10,7 @@
#include <linux/rds.h>
#include <linux/rhashtable.h>
#include <linux/refcount.h>
+#include <linux/in6.h>
#include "info.h"
@@ -23,11 +24,13 @@
#define RDS_PROTOCOL_MINOR(v) ((v) & 255)
#define RDS_PROTOCOL(maj, min) (((maj) << 8) | min)
-/*
- * XXX randomly chosen, but at least seems to be unused:
- * # 18464-18768 Unassigned
- * We should do better. We want a reserved port to discourage unpriv'ed
- * userspace from listening.
+/* The following ports, 16385, 18634, 18635, are registered with IANA as
+ * the ports to be used for RDS over TCP and UDP. Currently, only RDS over
+ * TCP and RDS over IB/RDMA are implemented. 18634 is the historical value
+ * used for the RDMA_CM listener port. RDS/TCP uses port 16385. After
+ * IPv6 work, RDMA_CM also uses 16385 as the listener port. 18634 is kept
+ * to ensure compatibility with older RDS modules. Those ports are defined
+ * in each transport's header file.
*/
#define RDS_PORT 18634
@@ -61,7 +64,7 @@ void rdsdebug(char *fmt, ...)
struct rds_cong_map {
struct rb_node m_rb_node;
- __be32 m_addr;
+ struct in6_addr m_addr;
wait_queue_head_t m_waitq;
struct list_head m_conn_list;
unsigned long m_page_addrs[RDS_CONG_MAP_PAGES];
@@ -136,11 +139,14 @@ struct rds_conn_path {
/* One rds_connection per RDS address pair */
struct rds_connection {
struct hlist_node c_hash_node;
- __be32 c_laddr;
- __be32 c_faddr;
+ struct in6_addr c_laddr;
+ struct in6_addr c_faddr;
+ int c_dev_if; /* ifindex used for this conn */
+ int c_bound_if; /* ifindex of c_laddr */
unsigned int c_loopback:1,
+ c_isv6:1,
c_ping_triggered:1,
- c_pad_to_32:30;
+ c_pad_to_32:29;
int c_npaths;
struct rds_connection *c_passive;
struct rds_transport *c_trans;
@@ -269,7 +275,7 @@ struct rds_incoming {
struct rds_conn_path *i_conn_path;
struct rds_header i_hdr;
unsigned long i_rx_jiffies;
- __be32 i_saddr;
+ struct in6_addr i_saddr;
rds_rdma_cookie_t i_rdma_cookie;
struct timeval i_rx_tstamp;
@@ -386,7 +392,7 @@ struct rds_message {
struct list_head m_conn_item;
struct rds_incoming m_inc;
u64 m_ack_seq;
- __be32 m_daddr;
+ struct in6_addr m_daddr;
unsigned long m_flags;
/* Never access m_rs without holding m_rs_lock.
@@ -521,7 +527,8 @@ struct rds_transport {
t_mp_capable:1;
unsigned int t_type;
- int (*laddr_check)(struct net *net, __be32 addr);
+ int (*laddr_check)(struct net *net, const struct in6_addr *addr,
+ __u32 scope_id);
int (*conn_alloc)(struct rds_connection *conn, gfp_t gfp);
void (*conn_free)(void *data);
int (*conn_path_connect)(struct rds_conn_path *cp);
@@ -537,8 +544,8 @@ struct rds_transport {
void (*inc_free)(struct rds_incoming *inc);
int (*cm_handle_connect)(struct rdma_cm_id *cm_id,
- struct rdma_cm_event *event);
- int (*cm_initiate_connect)(struct rdma_cm_id *cm_id);
+ struct rdma_cm_event *event, bool isv6);
+ int (*cm_initiate_connect)(struct rdma_cm_id *cm_id, bool isv6);
void (*cm_connect_complete)(struct rds_connection *conn,
struct rdma_cm_event *event);
@@ -554,6 +561,12 @@ struct rds_transport {
bool (*t_unloading)(struct rds_connection *conn);
};
+/* Bind hash table key length. It is the sum of the size of a struct
+ * in6_addr, a scope_id and a port.
+ */
+#define RDS_BOUND_KEY_LEN \
+ (sizeof(struct in6_addr) + sizeof(__u32) + sizeof(__be16))
+
struct rds_sock {
struct sock rs_sk;
@@ -565,10 +578,14 @@ struct rds_sock {
* support.
*/
struct rhash_head rs_bound_node;
- u64 rs_bound_key;
- __be32 rs_bound_addr;
- __be32 rs_conn_addr;
- __be16 rs_bound_port;
+ u8 rs_bound_key[RDS_BOUND_KEY_LEN];
+ struct sockaddr_in6 rs_bound_sin6;
+#define rs_bound_addr rs_bound_sin6.sin6_addr
+#define rs_bound_addr_v4 rs_bound_sin6.sin6_addr.s6_addr32[3]
+#define rs_bound_port rs_bound_sin6.sin6_port
+#define rs_bound_scope_id rs_bound_sin6.sin6_scope_id
+ struct in6_addr rs_conn_addr;
+#define rs_conn_addr_v4 rs_conn_addr.s6_addr32[3]
__be16 rs_conn_port;
struct rds_transport *rs_transport;
@@ -704,7 +721,8 @@ extern wait_queue_head_t rds_poll_waitq;
/* bind.c */
int rds_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
void rds_remove_bound(struct rds_sock *rs);
-struct rds_sock *rds_find_bound(__be32 addr, __be16 port);
+struct rds_sock *rds_find_bound(const struct in6_addr *addr, __be16 port,
+ __u32 scope_id);
int rds_bind_lock_init(void);
void rds_bind_lock_destroy(void);
@@ -723,16 +741,20 @@ void rds_cong_remove_socket(struct rds_sock *);
void rds_cong_exit(void);
struct rds_message *rds_cong_update_alloc(struct rds_connection *conn);
-/* conn.c */
+/* connection.c */
extern u32 rds_gen_num;
int rds_conn_init(void);
void rds_conn_exit(void);
struct rds_connection *rds_conn_create(struct net *net,
- __be32 laddr, __be32 faddr,
- struct rds_transport *trans, gfp_t gfp);
+ const struct in6_addr *laddr,
+ const struct in6_addr *faddr,
+ struct rds_transport *trans, gfp_t gfp,
+ int dev_if);
struct rds_connection *rds_conn_create_outgoing(struct net *net,
- __be32 laddr, __be32 faddr,
- struct rds_transport *trans, gfp_t gfp);
+ const struct in6_addr *laddr,
+ const struct in6_addr *faddr,
+ struct rds_transport *trans,
+ gfp_t gfp, int dev_if);
void rds_conn_shutdown(struct rds_conn_path *cpath);
void rds_conn_destroy(struct rds_connection *conn);
void rds_conn_drop(struct rds_connection *conn);
@@ -843,11 +865,12 @@ void rds_page_exit(void);
/* recv.c */
void rds_inc_init(struct rds_incoming *inc, struct rds_connection *conn,
- __be32 saddr);
+ struct in6_addr *saddr);
void rds_inc_path_init(struct rds_incoming *inc, struct rds_conn_path *conn,
- __be32 saddr);
+ struct in6_addr *saddr);
void rds_inc_put(struct rds_incoming *inc);
-void rds_recv_incoming(struct rds_connection *conn, __be32 saddr, __be32 daddr,
+void rds_recv_incoming(struct rds_connection *conn, struct in6_addr *saddr,
+ struct in6_addr *daddr,
struct rds_incoming *inc, gfp_t gfp);
int rds_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int msg_flags);
@@ -856,13 +879,17 @@ int rds_notify_queue_get(struct rds_sock *rs, struct msghdr *msg);
void rds_inc_info_copy(struct rds_incoming *inc,
struct rds_info_iterator *iter,
__be32 saddr, __be32 daddr, int flip);
+void rds6_inc_info_copy(struct rds_incoming *inc,
+ struct rds_info_iterator *iter,
+ struct in6_addr *saddr, struct in6_addr *daddr,
+ int flip);
/* send.c */
int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len);
void rds_send_path_reset(struct rds_conn_path *conn);
int rds_send_xmit(struct rds_conn_path *cp);
struct sockaddr_in;
-void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest);
+void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in6 *dest);
typedef int (*is_acked_func)(struct rds_message *rm, uint64_t ack);
void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
is_acked_func is_acked);
@@ -949,11 +976,14 @@ void rds_send_worker(struct work_struct *);
void rds_recv_worker(struct work_struct *);
void rds_connect_path_complete(struct rds_conn_path *conn, int curr);
void rds_connect_complete(struct rds_connection *conn);
+int rds_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2);
/* transport.c */
void rds_trans_register(struct rds_transport *trans);
void rds_trans_unregister(struct rds_transport *trans);
-struct rds_transport *rds_trans_get_preferred(struct net *net, __be32 addr);
+struct rds_transport *rds_trans_get_preferred(struct net *net,
+ const struct in6_addr *addr,
+ __u32 scope_id);
void rds_trans_put(struct rds_transport *trans);
unsigned int rds_trans_stats_info_copy(struct rds_info_iterator *iter,
unsigned int avail);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 22:34:01 +0300