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-rw-r--r--net/rxrpc/ar-internal.h515
1 files changed, 297 insertions, 218 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index f0b807a163fa..1bb9e7ac9e14 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -9,7 +9,10 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/atomic.h>
+#include <linux/seqlock.h>
#include <net/sock.h>
+#include <net/af_rxrpc.h>
#include <rxrpc/packet.h>
#if 0
@@ -33,15 +36,16 @@ struct rxrpc_crypt {
queue_delayed_work(rxrpc_workqueue, (WS), (D))
#define rxrpc_queue_call(CALL) rxrpc_queue_work(&(CALL)->processor)
-#define rxrpc_queue_conn(CONN) rxrpc_queue_work(&(CONN)->processor)
+
+struct rxrpc_connection;
/*
* sk_state for RxRPC sockets
*/
enum {
- RXRPC_UNCONNECTED = 0,
+ RXRPC_UNBOUND = 0,
+ RXRPC_CLIENT_UNBOUND, /* Unbound socket used as client */
RXRPC_CLIENT_BOUND, /* client local address bound */
- RXRPC_CLIENT_CONNECTED, /* client is connected */
RXRPC_SERVER_BOUND, /* server local address bound */
RXRPC_SERVER_LISTENING, /* server listening for connections */
RXRPC_CLOSE, /* socket is being closed */
@@ -55,9 +59,6 @@ struct rxrpc_sock {
struct sock sk;
rxrpc_interceptor_t interceptor; /* kernel service Rx interceptor function */
struct rxrpc_local *local; /* local endpoint */
- struct rxrpc_transport *trans; /* transport handler */
- struct rxrpc_conn_bundle *bundle; /* virtual connection bundle */
- struct rxrpc_connection *conn; /* exclusive virtual connection */
struct list_head listen_link; /* link in the local endpoint's listen list */
struct list_head secureq; /* calls awaiting connection security clearance */
struct list_head acceptq; /* calls awaiting acceptance */
@@ -65,12 +66,14 @@ struct rxrpc_sock {
struct key *securities; /* list of server security descriptors */
struct rb_root calls; /* outstanding calls on this socket */
unsigned long flags;
-#define RXRPC_SOCK_EXCLUSIVE_CONN 1 /* exclusive connection for a client socket */
+#define RXRPC_SOCK_CONNECTED 0 /* connect_srx is set */
rwlock_t call_lock; /* lock for calls */
u32 min_sec_level; /* minimum security level */
#define RXRPC_SECURITY_MAX RXRPC_SECURITY_ENCRYPT
+ bool exclusive; /* Exclusive connection for a client socket */
+ sa_family_t family; /* Protocol family created with */
struct sockaddr_rxrpc srx; /* local address */
- sa_family_t proto; /* protocol created with */
+ struct sockaddr_rxrpc connect_srx; /* Default client address from connect() */
};
#define rxrpc_sk(__sk) container_of((__sk), struct rxrpc_sock, sk)
@@ -138,17 +141,16 @@ struct rxrpc_security {
int (*init_connection_security)(struct rxrpc_connection *);
/* prime a connection's packet security */
- void (*prime_packet_security)(struct rxrpc_connection *);
+ int (*prime_packet_security)(struct rxrpc_connection *);
/* impose security on a packet */
- int (*secure_packet)(const struct rxrpc_call *,
+ int (*secure_packet)(struct rxrpc_call *,
struct sk_buff *,
size_t,
void *);
/* verify the security on a received packet */
- int (*verify_packet)(const struct rxrpc_call *, struct sk_buff *,
- u32 *);
+ int (*verify_packet)(struct rxrpc_call *, struct sk_buff *, u32 *);
/* issue a challenge */
int (*issue_challenge)(struct rxrpc_connection *);
@@ -168,46 +170,52 @@ struct rxrpc_security {
};
/*
- * RxRPC local transport endpoint definition
- * - matched by local port, address and protocol type
+ * RxRPC local transport endpoint description
+ * - owned by a single AF_RXRPC socket
+ * - pointed to by transport socket struct sk_user_data
*/
struct rxrpc_local {
+ struct rcu_head rcu;
+ atomic_t usage;
+ struct list_head link;
struct socket *socket; /* my UDP socket */
- struct work_struct destroyer; /* endpoint destroyer */
- struct work_struct acceptor; /* incoming call processor */
- struct work_struct rejecter; /* packet reject writer */
- struct work_struct event_processor; /* endpoint event processor */
+ struct work_struct processor;
struct list_head services; /* services listening on this endpoint */
- struct list_head link; /* link in endpoint list */
struct rw_semaphore defrag_sem; /* control re-enablement of IP DF bit */
struct sk_buff_head accept_queue; /* incoming calls awaiting acceptance */
struct sk_buff_head reject_queue; /* packets awaiting rejection */
struct sk_buff_head event_queue; /* endpoint event packets awaiting processing */
+ struct rb_root client_conns; /* Client connections by socket params */
+ spinlock_t client_conns_lock; /* Lock for client_conns */
spinlock_t lock; /* access lock */
rwlock_t services_lock; /* lock for services list */
- atomic_t usage;
int debug_id; /* debug ID for printks */
- volatile char error_rcvd; /* T if received ICMP error outstanding */
+ bool dead;
struct sockaddr_rxrpc srx; /* local address */
};
/*
* RxRPC remote transport endpoint definition
- * - matched by remote port, address and protocol type
- * - holds the connection ID counter for connections between the two endpoints
+ * - matched by local endpoint, remote port, address and protocol type
*/
struct rxrpc_peer {
- struct work_struct destroyer; /* peer destroyer */
- struct list_head link; /* link in master peer list */
- struct list_head error_targets; /* targets for net error distribution */
- spinlock_t lock; /* access lock */
+ struct rcu_head rcu; /* This must be first */
atomic_t usage;
+ unsigned long hash_key;
+ struct hlist_node hash_link;
+ struct rxrpc_local *local;
+ struct hlist_head error_targets; /* targets for net error distribution */
+ struct work_struct error_distributor;
+ struct rb_root service_conns; /* Service connections */
+ seqlock_t service_conn_lock;
+ spinlock_t lock; /* access lock */
unsigned int if_mtu; /* interface MTU for this peer */
unsigned int mtu; /* network MTU for this peer */
unsigned int maxdata; /* data size (MTU - hdrsize) */
unsigned short hdrsize; /* header size (IP + UDP + RxRPC) */
int debug_id; /* debug ID for printks */
- int net_error; /* network error distributed */
+ int error_report; /* Net (+0) or local (+1000000) to distribute */
+#define RXRPC_LOCAL_ERROR_OFFSET 1000000
struct sockaddr_rxrpc srx; /* remote address */
/* calculated RTT cache */
@@ -219,99 +227,108 @@ struct rxrpc_peer {
};
/*
- * RxRPC point-to-point transport / connection manager definition
- * - handles a bundle of connections between two endpoints
- * - matched by { local, peer }
- */
-struct rxrpc_transport {
- struct rxrpc_local *local; /* local transport endpoint */
- struct rxrpc_peer *peer; /* remote transport endpoint */
- struct work_struct error_handler; /* network error distributor */
- struct rb_root bundles; /* client connection bundles on this transport */
- struct rb_root client_conns; /* client connections on this transport */
- struct rb_root server_conns; /* server connections on this transport */
- struct list_head link; /* link in master session list */
- struct sk_buff_head error_queue; /* error packets awaiting processing */
- unsigned long put_time; /* time at which to reap */
- spinlock_t client_lock; /* client connection allocation lock */
- rwlock_t conn_lock; /* lock for active/dead connections */
- atomic_t usage;
- int debug_id; /* debug ID for printks */
- unsigned int conn_idcounter; /* connection ID counter (client) */
+ * Keys for matching a connection.
+ */
+struct rxrpc_conn_proto {
+ union {
+ struct {
+ u32 epoch; /* epoch of this connection */
+ u32 cid; /* connection ID */
+ };
+ u64 index_key;
+ };
+};
+
+struct rxrpc_conn_parameters {
+ struct rxrpc_local *local; /* Representation of local endpoint */
+ struct rxrpc_peer *peer; /* Remote endpoint */
+ struct key *key; /* Security details */
+ bool exclusive; /* T if conn is exclusive */
+ u16 service_id; /* Service ID for this connection */
+ u32 security_level; /* Security level selected */
};
/*
- * RxRPC client connection bundle
- * - matched by { transport, service_id, key }
+ * Bits in the connection flags.
*/
-struct rxrpc_conn_bundle {
- struct rb_node node; /* node in transport's lookup tree */
- struct list_head unused_conns; /* unused connections in this bundle */
- struct list_head avail_conns; /* available connections in this bundle */
- struct list_head busy_conns; /* busy connections in this bundle */
- struct key *key; /* security for this bundle */
- wait_queue_head_t chanwait; /* wait for channel to become available */
- atomic_t usage;
- int debug_id; /* debug ID for printks */
- unsigned short num_conns; /* number of connections in this bundle */
- u16 service_id; /* Service ID for this bundle */
- u8 security_ix; /* security type */
+enum rxrpc_conn_flag {
+ RXRPC_CONN_HAS_IDR, /* Has a client conn ID assigned */
+ RXRPC_CONN_IN_SERVICE_CONNS, /* Conn is in peer->service_conns */
+ RXRPC_CONN_IN_CLIENT_CONNS, /* Conn is in local->client_conns */
+};
+
+/*
+ * Events that can be raised upon a connection.
+ */
+enum rxrpc_conn_event {
+ RXRPC_CONN_EV_CHALLENGE, /* Send challenge packet */
+};
+
+/*
+ * The connection protocol state.
+ */
+enum rxrpc_conn_proto_state {
+ RXRPC_CONN_UNUSED, /* Connection not yet attempted */
+ RXRPC_CONN_CLIENT, /* Client connection */
+ RXRPC_CONN_SERVICE_UNSECURED, /* Service unsecured connection */
+ RXRPC_CONN_SERVICE_CHALLENGING, /* Service challenging for security */
+ RXRPC_CONN_SERVICE, /* Service secured connection */
+ RXRPC_CONN_REMOTELY_ABORTED, /* Conn aborted by peer */
+ RXRPC_CONN_LOCALLY_ABORTED, /* Conn aborted locally */
+ RXRPC_CONN_NETWORK_ERROR, /* Conn terminated by network error */
+ RXRPC_CONN__NR_STATES
};
/*
* RxRPC connection definition
- * - matched by { transport, service_id, conn_id, direction, key }
+ * - matched by { local, peer, epoch, conn_id, direction }
* - each connection can only handle four simultaneous calls
*/
struct rxrpc_connection {
- struct rxrpc_transport *trans; /* transport session */
- struct rxrpc_conn_bundle *bundle; /* connection bundle (client) */
+ struct rxrpc_conn_proto proto;
+ struct rxrpc_conn_parameters params;
+
+ spinlock_t channel_lock;
+
+ struct rxrpc_channel {
+ struct rxrpc_call __rcu *call; /* Active call */
+ u32 call_id; /* ID of current call */
+ u32 call_counter; /* Call ID counter */
+ u32 last_call; /* ID of last call */
+ u32 last_result; /* Result of last call (0/abort) */
+ } channels[RXRPC_MAXCALLS];
+ wait_queue_head_t channel_wq; /* queue to wait for channel to become available */
+
+ struct rcu_head rcu;
struct work_struct processor; /* connection event processor */
- struct rb_node node; /* node in transport's lookup tree */
+ union {
+ struct rb_node client_node; /* Node in local->client_conns */
+ struct rb_node service_node; /* Node in peer->service_conns */
+ };
struct list_head link; /* link in master connection list */
- struct list_head bundle_link; /* link in bundle */
- struct rb_root calls; /* calls on this connection */
struct sk_buff_head rx_queue; /* received conn-level packets */
- struct rxrpc_call *channels[RXRPC_MAXCALLS]; /* channels (active calls) */
const struct rxrpc_security *security; /* applied security module */
- struct key *key; /* security for this connection (client) */
struct key *server_key; /* security for this service */
struct crypto_skcipher *cipher; /* encryption handle */
struct rxrpc_crypt csum_iv; /* packet checksum base */
+ unsigned long flags;
unsigned long events;
-#define RXRPC_CONN_CHALLENGE 0 /* send challenge packet */
- unsigned long put_time; /* time at which to reap */
- rwlock_t lock; /* access lock */
+ unsigned long put_time; /* Time at which last put */
spinlock_t state_lock; /* state-change lock */
atomic_t usage;
- enum { /* current state of connection */
- RXRPC_CONN_UNUSED, /* - connection not yet attempted */
- RXRPC_CONN_CLIENT, /* - client connection */
- RXRPC_CONN_SERVER_UNSECURED, /* - server unsecured connection */
- RXRPC_CONN_SERVER_CHALLENGING, /* - server challenging for security */
- RXRPC_CONN_SERVER, /* - server secured connection */
- RXRPC_CONN_REMOTELY_ABORTED, /* - conn aborted by peer */
- RXRPC_CONN_LOCALLY_ABORTED, /* - conn aborted locally */
- RXRPC_CONN_NETWORK_ERROR, /* - conn terminated by network error */
- } state;
+ enum rxrpc_conn_proto_state state : 8; /* current state of connection */
u32 local_abort; /* local abort code */
u32 remote_abort; /* remote abort code */
int error; /* local error incurred */
int debug_id; /* debug ID for printks */
- unsigned int call_counter; /* call ID counter */
atomic_t serial; /* packet serial number counter */
atomic_t hi_serial; /* highest serial number received */
- u8 avail_calls; /* number of calls available */
+ atomic_t avail_chans; /* number of channels available */
u8 size_align; /* data size alignment (for security) */
u8 header_size; /* rxrpc + security header size */
u8 security_size; /* security header size */
- u32 security_level; /* security level negotiated */
u32 security_nonce; /* response re-use preventer */
- u32 epoch; /* epoch of this connection */
- u32 cid; /* connection ID */
- u16 service_id; /* service ID for this connection */
u8 security_ix; /* security type */
- u8 in_clientflag; /* RXRPC_CLIENT_INITIATED if we are server */
u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */
};
@@ -357,6 +374,8 @@ enum rxrpc_call_event {
* The states that a call can be in.
*/
enum rxrpc_call_state {
+ RXRPC_CALL_UNINITIALISED,
+ RXRPC_CALL_CLIENT_AWAIT_CONN, /* - client waiting for connection to become available */
RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */
RXRPC_CALL_CLIENT_AWAIT_REPLY, /* - client awaiting reply */
RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */
@@ -381,6 +400,7 @@ enum rxrpc_call_state {
* - matched by { connection, call_id }
*/
struct rxrpc_call {
+ struct rcu_head rcu;
struct rxrpc_connection *conn; /* connection carrying call */
struct rxrpc_sock *socket; /* socket responsible */
struct timer_list lifetimer; /* lifetime remaining on call */
@@ -390,14 +410,14 @@ struct rxrpc_call {
struct work_struct destroyer; /* call destroyer */
struct work_struct processor; /* packet processor and ACK generator */
struct list_head link; /* link in master call list */
- struct list_head error_link; /* link in error distribution list */
+ struct hlist_node error_link; /* link in error distribution list */
struct list_head accept_link; /* calls awaiting acceptance */
struct rb_node sock_node; /* node in socket call tree */
- struct rb_node conn_node; /* node in connection call tree */
struct sk_buff_head rx_queue; /* received packets */
struct sk_buff_head rx_oos_queue; /* packets received out of sequence */
struct sk_buff *tx_pending; /* Tx socket buffer being filled */
wait_queue_head_t tx_waitq; /* wait for Tx window space to become available */
+ __be32 crypto_buf[2]; /* Temporary packet crypto buffer */
unsigned long user_call_ID; /* user-defined call ID */
unsigned long creation_jif; /* time of call creation */
unsigned long flags;
@@ -408,7 +428,8 @@ struct rxrpc_call {
atomic_t sequence; /* Tx data packet sequence counter */
u32 local_abort; /* local abort code */
u32 remote_abort; /* remote abort code */
- int error; /* local error incurred */
+ int error_report; /* Network error (ICMP/local transport) */
+ int error; /* Local error incurred */
enum rxrpc_call_state state : 8; /* current state of call */
int debug_id; /* debug ID for printks */
u8 channel; /* connection channel occupied by this call */
@@ -440,19 +461,12 @@ struct rxrpc_call {
#define RXRPC_ACKR_WINDOW_ASZ DIV_ROUND_UP(RXRPC_MAXACKS, BITS_PER_LONG)
unsigned long ackr_window[RXRPC_ACKR_WINDOW_ASZ + 1];
- struct hlist_node hash_node;
- unsigned long hash_key; /* Full hash key */
- u8 in_clientflag; /* Copy of conn->in_clientflag for hashing */
- struct rxrpc_local *local; /* Local endpoint. Used for hashing. */
- sa_family_t proto; /* Frame protocol */
+ u8 in_clientflag; /* Copy of conn->in_clientflag */
+ struct rxrpc_local *local; /* Local endpoint. */
u32 call_id; /* call ID on connection */
u32 cid; /* connection ID plus channel index */
u32 epoch; /* epoch of this connection */
u16 service_id; /* service ID */
- union { /* Peer IP address for hashing */
- __be32 ipv4_addr;
- __u8 ipv6_addr[16]; /* Anticipates eventual IPv6 support */
- } peer_ip;
};
/*
@@ -478,21 +492,21 @@ extern atomic_t rxrpc_debug_id;
extern struct workqueue_struct *rxrpc_workqueue;
/*
- * ar-accept.c
+ * call_accept.c
*/
-void rxrpc_accept_incoming_calls(struct work_struct *);
+void rxrpc_accept_incoming_calls(struct rxrpc_local *);
struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long);
int rxrpc_reject_call(struct rxrpc_sock *);
/*
- * ar-ack.c
+ * call_event.c
*/
void __rxrpc_propose_ACK(struct rxrpc_call *, u8, u32, bool);
void rxrpc_propose_ACK(struct rxrpc_call *, u8, u32, bool);
void rxrpc_process_call(struct work_struct *);
/*
- * ar-call.c
+ * call_object.c
*/
extern unsigned int rxrpc_max_call_lifetime;
extern unsigned int rxrpc_dead_call_expiry;
@@ -500,72 +514,106 @@ extern struct kmem_cache *rxrpc_call_jar;
extern struct list_head rxrpc_calls;
extern rwlock_t rxrpc_call_lock;
-struct rxrpc_call *rxrpc_find_call_hash(struct rxrpc_host_header *,
- void *, sa_family_t, const void *);
-struct rxrpc_call *rxrpc_get_client_call(struct rxrpc_sock *,
- struct rxrpc_transport *,
- struct rxrpc_conn_bundle *,
- unsigned long, int, gfp_t);
+struct rxrpc_call *rxrpc_find_call_by_user_ID(struct rxrpc_sock *, unsigned long);
+struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *,
+ struct rxrpc_conn_parameters *,
+ struct sockaddr_rxrpc *,
+ unsigned long, gfp_t);
struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
struct rxrpc_connection *,
- struct rxrpc_host_header *);
-struct rxrpc_call *rxrpc_find_server_call(struct rxrpc_sock *, unsigned long);
+ struct sk_buff *);
void rxrpc_release_call(struct rxrpc_call *);
void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
void __rxrpc_put_call(struct rxrpc_call *);
void __exit rxrpc_destroy_all_calls(void);
/*
- * ar-connection.c
+ * conn_client.c
+ */
+extern struct idr rxrpc_client_conn_ids;
+
+void rxrpc_destroy_client_conn_ids(void);
+int rxrpc_connect_call(struct rxrpc_call *, struct rxrpc_conn_parameters *,
+ struct sockaddr_rxrpc *, gfp_t);
+void rxrpc_unpublish_client_conn(struct rxrpc_connection *);
+
+/*
+ * conn_event.c
+ */
+void rxrpc_process_connection(struct work_struct *);
+void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *);
+void rxrpc_reject_packets(struct rxrpc_local *);
+
+/*
+ * conn_object.c
*/
extern unsigned int rxrpc_connection_expiry;
extern struct list_head rxrpc_connections;
extern rwlock_t rxrpc_connection_lock;
-struct rxrpc_conn_bundle *rxrpc_get_bundle(struct rxrpc_sock *,
- struct rxrpc_transport *,
- struct key *, u16, gfp_t);
-void rxrpc_put_bundle(struct rxrpc_transport *, struct rxrpc_conn_bundle *);
-int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_transport *,
- struct rxrpc_conn_bundle *, struct rxrpc_call *, gfp_t);
+int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *);
+struct rxrpc_connection *rxrpc_alloc_connection(gfp_t);
+struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *,
+ struct sk_buff *);
+void __rxrpc_disconnect_call(struct rxrpc_call *);
+void rxrpc_disconnect_call(struct rxrpc_call *);
void rxrpc_put_connection(struct rxrpc_connection *);
void __exit rxrpc_destroy_all_connections(void);
-struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *,
- struct rxrpc_host_header *);
-extern struct rxrpc_connection *
-rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_host_header *);
-/*
- * ar-connevent.c
- */
-void rxrpc_process_connection(struct work_struct *);
-void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *);
-void rxrpc_reject_packets(struct work_struct *);
+static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn)
+{
+ return conn->out_clientflag;
+}
+
+static inline bool rxrpc_conn_is_service(const struct rxrpc_connection *conn)
+{
+ return !rxrpc_conn_is_client(conn);
+}
+
+static inline void rxrpc_get_connection(struct rxrpc_connection *conn)
+{
+ atomic_inc(&conn->usage);
+}
+
+static inline
+struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
+{
+ return atomic_inc_not_zero(&conn->usage) ? conn : NULL;
+}
+
+static inline bool rxrpc_queue_conn(struct rxrpc_connection *conn)
+{
+ if (!rxrpc_get_connection_maybe(conn))
+ return false;
+ if (!rxrpc_queue_work(&conn->processor))
+ rxrpc_put_connection(conn);
+ return true;
+}
/*
- * ar-error.c
+ * conn_service.c
*/
-void rxrpc_UDP_error_report(struct sock *);
-void rxrpc_UDP_error_handler(struct work_struct *);
+struct rxrpc_connection *rxrpc_find_service_conn_rcu(struct rxrpc_peer *,
+ struct sk_buff *);
+struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *,
+ struct sockaddr_rxrpc *,
+ struct sk_buff *);
+void rxrpc_unpublish_service_conn(struct rxrpc_connection *);
/*
- * ar-input.c
+ * input.c
*/
void rxrpc_data_ready(struct sock *);
int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool, bool);
void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *);
/*
- * ar-local.c
+ * insecure.c
*/
-extern rwlock_t rxrpc_local_lock;
-
-struct rxrpc_local *rxrpc_lookup_local(struct sockaddr_rxrpc *);
-void rxrpc_put_local(struct rxrpc_local *);
-void __exit rxrpc_destroy_all_locals(void);
+extern const struct rxrpc_security rxrpc_no_security;
/*
- * ar-key.c
+ * key.c
*/
extern struct key_type key_type_rxrpc;
extern struct key_type key_type_rxrpc_s;
@@ -576,80 +624,108 @@ int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time_t,
u32);
/*
- * ar-output.c
+ * local_event.c
*/
-extern unsigned int rxrpc_resend_timeout;
-
-int rxrpc_send_packet(struct rxrpc_transport *, struct sk_buff *);
-int rxrpc_client_sendmsg(struct rxrpc_sock *, struct rxrpc_transport *,
- struct msghdr *, size_t);
-int rxrpc_server_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t);
+extern void rxrpc_process_local_events(struct rxrpc_local *);
/*
- * ar-peer.c
+ * local_object.c
*/
-struct rxrpc_peer *rxrpc_get_peer(struct sockaddr_rxrpc *, gfp_t);
-void rxrpc_put_peer(struct rxrpc_peer *);
-struct rxrpc_peer *rxrpc_find_peer(struct rxrpc_local *, __be32, __be16);
-void __exit rxrpc_destroy_all_peers(void);
+struct rxrpc_local *rxrpc_lookup_local(const struct sockaddr_rxrpc *);
+void __rxrpc_put_local(struct rxrpc_local *);
+void __exit rxrpc_destroy_all_locals(void);
-/*
- * ar-proc.c
- */
-extern const char *const rxrpc_call_states[];
-extern const struct file_operations rxrpc_call_seq_fops;
-extern const struct file_operations rxrpc_connection_seq_fops;
+static inline void rxrpc_get_local(struct rxrpc_local *local)
+{
+ atomic_inc(&local->usage);
+}
+
+static inline
+struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local)
+{
+ return atomic_inc_not_zero(&local->usage) ? local : NULL;
+}
+
+static inline void rxrpc_put_local(struct rxrpc_local *local)
+{
+ if (local && atomic_dec_and_test(&local->usage))
+ __rxrpc_put_local(local);
+}
+
+static inline void rxrpc_queue_local(struct rxrpc_local *local)
+{
+ rxrpc_queue_work(&local->processor);
+}
/*
- * ar-recvmsg.c
+ * misc.c
*/
-void rxrpc_remove_user_ID(struct rxrpc_sock *, struct rxrpc_call *);
-int rxrpc_recvmsg(struct socket *, struct msghdr *, size_t, int);
+extern unsigned int rxrpc_max_backlog __read_mostly;
+extern unsigned int rxrpc_requested_ack_delay;
+extern unsigned int rxrpc_soft_ack_delay;
+extern unsigned int rxrpc_idle_ack_delay;
+extern unsigned int rxrpc_rx_window_size;
+extern unsigned int rxrpc_rx_mtu;
+extern unsigned int rxrpc_rx_jumbo_max;
+
+extern const char *const rxrpc_pkts[];
+extern const s8 rxrpc_ack_priority[];
+
+extern const char *rxrpc_acks(u8 reason);
/*
- * ar-security.c
+ * output.c
*/
-int __init rxrpc_init_security(void);
-void rxrpc_exit_security(void);
-int rxrpc_init_client_conn_security(struct rxrpc_connection *);
-int rxrpc_init_server_conn_security(struct rxrpc_connection *);
+extern unsigned int rxrpc_resend_timeout;
+
+int rxrpc_send_data_packet(struct rxrpc_connection *, struct sk_buff *);
+int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t);
/*
- * ar-skbuff.c
+ * peer_event.c
*/
-void rxrpc_packet_destructor(struct sk_buff *);
+void rxrpc_error_report(struct sock *);
+void rxrpc_peer_error_distributor(struct work_struct *);
/*
- * ar-transport.c
+ * peer_object.c
*/
-extern unsigned int rxrpc_transport_expiry;
+struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *,
+ const struct sockaddr_rxrpc *);
+struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *,
+ struct sockaddr_rxrpc *, gfp_t);
+struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t);
-struct rxrpc_transport *rxrpc_get_transport(struct rxrpc_local *,
- struct rxrpc_peer *, gfp_t);
-void rxrpc_put_transport(struct rxrpc_transport *);
-void __exit rxrpc_destroy_all_transports(void);
-struct rxrpc_transport *rxrpc_find_transport(struct rxrpc_local *,
- struct rxrpc_peer *);
+static inline void rxrpc_get_peer(struct rxrpc_peer *peer)
+{
+ atomic_inc(&peer->usage);
+}
+
+static inline
+struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer)
+{
+ return atomic_inc_not_zero(&peer->usage) ? peer : NULL;
+}
+
+extern void __rxrpc_put_peer(struct rxrpc_peer *peer);
+static inline void rxrpc_put_peer(struct rxrpc_peer *peer)
+{
+ if (peer && atomic_dec_and_test(&peer->usage))
+ __rxrpc_put_peer(peer);
+}
/*
- * insecure.c
+ * proc.c
*/
-extern const struct rxrpc_security rxrpc_no_security;
+extern const char *const rxrpc_call_states[];
+extern const struct file_operations rxrpc_call_seq_fops;
+extern const struct file_operations rxrpc_connection_seq_fops;
/*
- * misc.c
+ * recvmsg.c
*/
-extern unsigned int rxrpc_requested_ack_delay;
-extern unsigned int rxrpc_soft_ack_delay;
-extern unsigned int rxrpc_idle_ack_delay;
-extern unsigned int rxrpc_rx_window_size;
-extern unsigned int rxrpc_rx_mtu;
-extern unsigned int rxrpc_rx_jumbo_max;
-
-extern const char *const rxrpc_pkts[];
-extern const s8 rxrpc_ack_priority[];
-
-extern const char *rxrpc_acks(u8 reason);
+void rxrpc_remove_user_ID(struct rxrpc_sock *, struct rxrpc_call *);
+int rxrpc_recvmsg(struct socket *, struct msghdr *, size_t, int);
/*
* rxkad.c
@@ -659,6 +735,19 @@ extern const struct rxrpc_security rxkad;
#endif
/*
+ * security.c
+ */
+int __init rxrpc_init_security(void);
+void rxrpc_exit_security(void);
+int rxrpc_init_client_conn_security(struct rxrpc_connection *);
+int rxrpc_init_server_conn_security(struct rxrpc_connection *);
+
+/*
+ * skbuff.c
+ */
+void rxrpc_packet_destructor(struct sk_buff *);
+
+/*
* sysctl.c
*/
#ifdef CONFIG_SYSCTL
@@ -670,6 +759,11 @@ static inline void rxrpc_sysctl_exit(void) {}
#endif
/*
+ * utils.c
+ */
+int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *);
+
+/*
* debug tracing
*/
extern unsigned int rxrpc_debug;
@@ -744,21 +838,18 @@ do { \
#define ASSERT(X) \
do { \
if (unlikely(!(X))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "RxRPC: Assertion failed\n"); \
+ pr_err("Assertion failed\n"); \
BUG(); \
} \
} while (0)
#define ASSERTCMP(X, OP, Y) \
do { \
- if (unlikely(!((X) OP (Y)))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "RxRPC: Assertion failed\n"); \
- printk(KERN_ERR "%lu " #OP " %lu is false\n", \
- (unsigned long)(X), (unsigned long)(Y)); \
- printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
- (unsigned long)(X), (unsigned long)(Y)); \
+ unsigned long _x = (unsigned long)(X); \
+ unsigned long _y = (unsigned long)(Y); \
+ if (unlikely(!(_x OP _y))) { \
+ pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \
+ _x, _x, #OP, _y, _y); \
BUG(); \
} \
} while (0)
@@ -766,21 +857,18 @@ do { \
#define ASSERTIF(C, X) \
do { \
if (unlikely((C) && !(X))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "RxRPC: Assertion failed\n"); \
+ pr_err("Assertion failed\n"); \
BUG(); \
} \
} while (0)
#define ASSERTIFCMP(C, X, OP, Y) \
do { \
- if (unlikely((C) && !((X) OP (Y)))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "RxRPC: Assertion failed\n"); \
- printk(KERN_ERR "%lu " #OP " %lu is false\n", \
- (unsigned long)(X), (unsigned long)(Y)); \
- printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
- (unsigned long)(X), (unsigned long)(Y)); \
+ unsigned long _x = (unsigned long)(X); \
+ unsigned long _y = (unsigned long)(Y); \
+ if (unlikely((C) && !(_x OP _y))) { \
+ pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \
+ _x, _x, #OP, _y, _y); \
BUG(); \
} \
} while (0)
@@ -844,15 +932,6 @@ static inline void rxrpc_purge_queue(struct sk_buff_head *list)
rxrpc_free_skb(skb);
}
-static inline void __rxrpc_get_local(struct rxrpc_local *local, const char *f)
-{
- CHECK_SLAB_OKAY(&local->usage);
- if (atomic_inc_return(&local->usage) == 1)
- printk("resurrected (%s)\n", f);
-}
-
-#define rxrpc_get_local(LOCAL) __rxrpc_get_local((LOCAL), __func__)
-
#define rxrpc_get_call(CALL) \
do { \
CHECK_SLAB_OKAY(&(CALL)->usage); \