diff options
Diffstat (limited to 'net/rxrpc/ar-internal.h')
| -rw-r--r-- | net/rxrpc/ar-internal.h | 220 |
1 files changed, 126 insertions, 94 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 2934a73a5981..cd6cdbe87125 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -16,7 +16,7 @@ BUG_ON(atomic_read((X)) >> (sizeof(atomic_t) - 2) == \ (POISON_FREE << 8 | POISON_FREE)) #else -#define CHECK_SLAB_OKAY(X) do {} while(0) +#define CHECK_SLAB_OKAY(X) do {} while (0) #endif #define FCRYPT_BSIZE 8 @@ -70,12 +70,31 @@ struct rxrpc_sock { #define RXRPC_SECURITY_MAX RXRPC_SECURITY_ENCRYPT struct sockaddr_rxrpc srx; /* local address */ sa_family_t proto; /* protocol created with */ - __be16 service_id; /* service ID of local/remote service */ }; #define rxrpc_sk(__sk) container_of((__sk), struct rxrpc_sock, sk) /* + * CPU-byteorder normalised Rx packet header. + */ +struct rxrpc_host_header { + u32 epoch; /* client boot timestamp */ + u32 cid; /* connection and channel ID */ + u32 callNumber; /* call ID (0 for connection-level packets) */ + u32 seq; /* sequence number of pkt in call stream */ + u32 serial; /* serial number of pkt sent to network */ + u8 type; /* packet type */ + u8 flags; /* packet flags */ + u8 userStatus; /* app-layer defined status */ + u8 securityIndex; /* security protocol ID */ + union { + u16 _rsvd; /* reserved */ + u16 cksum; /* kerberos security checksum */ + }; + u16 serviceId; /* service ID */ +} __packed; + +/* * RxRPC socket buffer private variables * - max 48 bytes (struct sk_buff::cb) */ @@ -89,7 +108,7 @@ struct rxrpc_skb_priv { bool need_resend; /* T if needs resending */ }; - struct rxrpc_header hdr; /* RxRPC packet header from this packet */ + struct rxrpc_host_header hdr; /* RxRPC packet header from this packet */ }; #define rxrpc_skb(__skb) ((struct rxrpc_skb_priv *) &(__skb)->cb) @@ -230,7 +249,7 @@ struct rxrpc_conn_bundle { atomic_t usage; int debug_id; /* debug ID for printks */ unsigned short num_conns; /* number of connections in this bundle */ - __be16 service_id; /* service ID */ + u16 service_id; /* Service ID for this bundle */ u8 security_ix; /* security type */ }; @@ -252,7 +271,7 @@ struct rxrpc_connection { 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_blkcipher *cipher; /* encryption handle */ + struct crypto_skcipher *cipher; /* encryption handle */ struct rxrpc_crypt csum_iv; /* packet checksum base */ unsigned long events; #define RXRPC_CONN_CHALLENGE 0 /* send challenge packet */ @@ -260,7 +279,6 @@ struct rxrpc_connection { rwlock_t lock; /* access lock */ spinlock_t state_lock; /* state-change lock */ atomic_t usage; - u32 real_conn_id; /* connection ID (host-endian) */ enum { /* current state of connection */ RXRPC_CONN_UNUSED, /* - connection not yet attempted */ RXRPC_CONN_CLIENT, /* - client connection */ @@ -282,17 +300,76 @@ struct rxrpc_connection { u8 security_size; /* security header size */ u32 security_level; /* security level negotiated */ u32 security_nonce; /* response re-use preventer */ - - /* the following are all in net order */ - __be32 epoch; /* epoch of this connection */ - __be32 cid; /* connection ID */ - __be16 service_id; /* service ID */ + 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 */ }; /* + * Flags in call->flags. + */ +enum rxrpc_call_flag { + RXRPC_CALL_RELEASED, /* call has been released - no more message to userspace */ + RXRPC_CALL_TERMINAL_MSG, /* call has given the socket its final message */ + RXRPC_CALL_RCVD_LAST, /* all packets received */ + RXRPC_CALL_RUN_RTIMER, /* Tx resend timer started */ + RXRPC_CALL_TX_SOFT_ACK, /* sent some soft ACKs */ + RXRPC_CALL_PROC_BUSY, /* the processor is busy */ + RXRPC_CALL_INIT_ACCEPT, /* acceptance was initiated */ + RXRPC_CALL_HAS_USERID, /* has a user ID attached */ + RXRPC_CALL_EXPECT_OOS, /* expect out of sequence packets */ +}; + +/* + * Events that can be raised on a call. + */ +enum rxrpc_call_event { + RXRPC_CALL_EV_RCVD_ACKALL, /* ACKALL or reply received */ + RXRPC_CALL_EV_RCVD_BUSY, /* busy packet received */ + RXRPC_CALL_EV_RCVD_ABORT, /* abort packet received */ + RXRPC_CALL_EV_RCVD_ERROR, /* network error received */ + RXRPC_CALL_EV_ACK_FINAL, /* need to generate final ACK (and release call) */ + RXRPC_CALL_EV_ACK, /* need to generate ACK */ + RXRPC_CALL_EV_REJECT_BUSY, /* need to generate busy message */ + RXRPC_CALL_EV_ABORT, /* need to generate abort */ + RXRPC_CALL_EV_CONN_ABORT, /* local connection abort generated */ + RXRPC_CALL_EV_RESEND_TIMER, /* Tx resend timer expired */ + RXRPC_CALL_EV_RESEND, /* Tx resend required */ + RXRPC_CALL_EV_DRAIN_RX_OOS, /* drain the Rx out of sequence queue */ + RXRPC_CALL_EV_LIFE_TIMER, /* call's lifetimer ran out */ + RXRPC_CALL_EV_ACCEPTED, /* incoming call accepted by userspace app */ + RXRPC_CALL_EV_SECURED, /* incoming call's connection is now secure */ + RXRPC_CALL_EV_POST_ACCEPT, /* need to post an "accept?" message to the app */ + RXRPC_CALL_EV_RELEASE, /* need to release the call's resources */ +}; + +/* + * The states that a call can be in. + */ +enum rxrpc_call_state { + 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 */ + RXRPC_CALL_CLIENT_FINAL_ACK, /* - client sending final ACK phase */ + RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */ + RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */ + RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */ + RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */ + RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */ + RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */ + RXRPC_CALL_COMPLETE, /* - call completed */ + RXRPC_CALL_SERVER_BUSY, /* - call rejected by busy server */ + RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */ + RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */ + RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */ + RXRPC_CALL_DEAD, /* - call is dead */ + NR__RXRPC_CALL_STATES +}; + +/* * RxRPC call definition * - matched by { connection, call_id } */ @@ -317,57 +394,13 @@ struct rxrpc_call { unsigned long user_call_ID; /* user-defined call ID */ unsigned long creation_jif; /* time of call creation */ unsigned long flags; -#define RXRPC_CALL_RELEASED 0 /* call has been released - no more message to userspace */ -#define RXRPC_CALL_TERMINAL_MSG 1 /* call has given the socket its final message */ -#define RXRPC_CALL_RCVD_LAST 2 /* all packets received */ -#define RXRPC_CALL_RUN_RTIMER 3 /* Tx resend timer started */ -#define RXRPC_CALL_TX_SOFT_ACK 4 /* sent some soft ACKs */ -#define RXRPC_CALL_PROC_BUSY 5 /* the processor is busy */ -#define RXRPC_CALL_INIT_ACCEPT 6 /* acceptance was initiated */ -#define RXRPC_CALL_HAS_USERID 7 /* has a user ID attached */ -#define RXRPC_CALL_EXPECT_OOS 8 /* expect out of sequence packets */ unsigned long events; -#define RXRPC_CALL_RCVD_ACKALL 0 /* ACKALL or reply received */ -#define RXRPC_CALL_RCVD_BUSY 1 /* busy packet received */ -#define RXRPC_CALL_RCVD_ABORT 2 /* abort packet received */ -#define RXRPC_CALL_RCVD_ERROR 3 /* network error received */ -#define RXRPC_CALL_ACK_FINAL 4 /* need to generate final ACK (and release call) */ -#define RXRPC_CALL_ACK 5 /* need to generate ACK */ -#define RXRPC_CALL_REJECT_BUSY 6 /* need to generate busy message */ -#define RXRPC_CALL_ABORT 7 /* need to generate abort */ -#define RXRPC_CALL_CONN_ABORT 8 /* local connection abort generated */ -#define RXRPC_CALL_RESEND_TIMER 9 /* Tx resend timer expired */ -#define RXRPC_CALL_RESEND 10 /* Tx resend required */ -#define RXRPC_CALL_DRAIN_RX_OOS 11 /* drain the Rx out of sequence queue */ -#define RXRPC_CALL_LIFE_TIMER 12 /* call's lifetimer ran out */ -#define RXRPC_CALL_ACCEPTED 13 /* incoming call accepted by userspace app */ -#define RXRPC_CALL_SECURED 14 /* incoming call's connection is now secure */ -#define RXRPC_CALL_POST_ACCEPT 15 /* need to post an "accept?" message to the app */ -#define RXRPC_CALL_RELEASE 16 /* need to release the call's resources */ - spinlock_t lock; rwlock_t state_lock; /* lock for state transition */ atomic_t usage; atomic_t sequence; /* Tx data packet sequence counter */ u32 abort_code; /* local/remote abort code */ - enum { /* current state of call */ - 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 */ - RXRPC_CALL_CLIENT_FINAL_ACK, /* - client sending final ACK phase */ - RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */ - RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */ - RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */ - RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */ - RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */ - RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */ - RXRPC_CALL_COMPLETE, /* - call completed */ - RXRPC_CALL_SERVER_BUSY, /* - call rejected by busy server */ - RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */ - RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */ - RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */ - RXRPC_CALL_DEAD, /* - call is dead */ - } state; + 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 */ @@ -389,9 +422,9 @@ struct rxrpc_call { rxrpc_seq_t rx_data_eaten; /* last data seq ID consumed by recvmsg */ rxrpc_seq_t rx_first_oos; /* first packet in rx_oos_queue (or 0) */ rxrpc_seq_t ackr_win_top; /* top of ACK window (rx_data_eaten is bottom) */ - rxrpc_seq_net_t ackr_prev_seq; /* previous sequence number received */ + rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */ u8 ackr_reason; /* reason to ACK */ - __be32 ackr_serial; /* serial of packet being ACK'd */ + rxrpc_serial_t ackr_serial; /* serial of packet being ACK'd */ atomic_t ackr_not_idle; /* number of packets in Rx queue */ /* received packet records, 1 bit per record */ @@ -403,11 +436,10 @@ struct rxrpc_call { 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 */ - /* the following should all be in net order */ - __be32 cid; /* connection ID + channel index */ - __be32 call_id; /* call ID on connection */ - __be32 epoch; /* epoch of this connection */ - __be16 service_id; /* service ID */ + 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 */ @@ -423,7 +455,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code) if (call->state < RXRPC_CALL_COMPLETE) { call->abort_code = abort_code; call->state = RXRPC_CALL_LOCALLY_ABORTED; - set_bit(RXRPC_CALL_ABORT, &call->events); + set_bit(RXRPC_CALL_EV_ABORT, &call->events); } write_unlock_bh(&call->state_lock); } @@ -432,7 +464,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code) * af_rxrpc.c */ extern atomic_t rxrpc_n_skbs; -extern __be32 rxrpc_epoch; +extern u32 rxrpc_epoch; extern atomic_t rxrpc_debug_id; extern struct workqueue_struct *rxrpc_workqueue; @@ -446,35 +478,35 @@ int rxrpc_reject_call(struct rxrpc_sock *); /* * ar-ack.c */ -extern unsigned rxrpc_requested_ack_delay; -extern unsigned rxrpc_soft_ack_delay; -extern unsigned rxrpc_idle_ack_delay; -extern unsigned rxrpc_rx_window_size; -extern unsigned rxrpc_rx_mtu; -extern unsigned rxrpc_rx_jumbo_max; +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; -void __rxrpc_propose_ACK(struct rxrpc_call *, u8, __be32, bool); -void rxrpc_propose_ACK(struct rxrpc_call *, u8, __be32, bool); +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 */ -extern unsigned rxrpc_max_call_lifetime; -extern unsigned rxrpc_dead_call_expiry; +extern unsigned int rxrpc_max_call_lifetime; +extern unsigned int rxrpc_dead_call_expiry; 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(u8, __be32, __be32, __be32, - __be16, void *, sa_family_t, const u8 *); +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_incoming_call(struct rxrpc_sock *, struct rxrpc_connection *, - struct rxrpc_header *, gfp_t); + struct rxrpc_host_header *, gfp_t); struct rxrpc_call *rxrpc_find_server_call(struct rxrpc_sock *, unsigned long); void rxrpc_release_call(struct rxrpc_call *); void rxrpc_release_calls_on_socket(struct rxrpc_sock *); @@ -484,22 +516,22 @@ void __exit rxrpc_destroy_all_calls(void); /* * ar-connection.c */ -extern unsigned rxrpc_connection_expiry; +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 *, __be16, gfp_t); + 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); 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_header *); + struct rxrpc_host_header *); extern struct rxrpc_connection * -rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_header *, +rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_host_header *, gfp_t); /* @@ -547,7 +579,7 @@ int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time_t, /* * ar-output.c */ -extern unsigned rxrpc_resend_timeout; +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 *, @@ -595,7 +627,7 @@ void rxrpc_packet_destructor(struct sk_buff *); /* * ar-transport.c */ -extern unsigned rxrpc_transport_expiry; +extern unsigned int rxrpc_transport_expiry; struct rxrpc_transport *rxrpc_get_transport(struct rxrpc_local *, struct rxrpc_peer *, gfp_t); @@ -694,7 +726,7 @@ do { \ printk(KERN_ERR "RxRPC: Assertion failed\n"); \ BUG(); \ } \ -} while(0) +} while (0) #define ASSERTCMP(X, OP, Y) \ do { \ @@ -707,7 +739,7 @@ do { \ (unsigned long)(X), (unsigned long)(Y)); \ BUG(); \ } \ -} while(0) +} while (0) #define ASSERTIF(C, X) \ do { \ @@ -716,7 +748,7 @@ do { \ printk(KERN_ERR "RxRPC: Assertion failed\n"); \ BUG(); \ } \ -} while(0) +} while (0) #define ASSERTIFCMP(C, X, OP, Y) \ do { \ @@ -729,25 +761,25 @@ do { \ (unsigned long)(X), (unsigned long)(Y)); \ BUG(); \ } \ -} while(0) +} while (0) #else #define ASSERT(X) \ do { \ -} while(0) +} while (0) #define ASSERTCMP(X, OP, Y) \ do { \ -} while(0) +} while (0) #define ASSERTIF(C, X) \ do { \ -} while(0) +} while (0) #define ASSERTIFCMP(C, X, OP, Y) \ do { \ -} while(0) +} while (0) #endif /* __KDEBUGALL */ @@ -804,9 +836,9 @@ do { \ CHECK_SLAB_OKAY(&(CALL)->usage); \ if (atomic_inc_return(&(CALL)->usage) == 1) \ BUG(); \ -} while(0) +} while (0) #define rxrpc_put_call(CALL) \ do { \ __rxrpc_put_call(CALL); \ -} while(0) +} while (0) |