117926a79SDavid Howells /* AF_RXRPC internal definitions 217926a79SDavid Howells * 317926a79SDavid Howells * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 417926a79SDavid Howells * Written by David Howells (dhowells@redhat.com) 517926a79SDavid Howells * 617926a79SDavid Howells * This program is free software; you can redistribute it and/or 717926a79SDavid Howells * modify it under the terms of the GNU General Public License 817926a79SDavid Howells * as published by the Free Software Foundation; either version 917926a79SDavid Howells * 2 of the License, or (at your option) any later version. 1017926a79SDavid Howells */ 1117926a79SDavid Howells 12be6e6707SDavid Howells #include <linux/atomic.h> 138496af50SDavid Howells #include <linux/seqlock.h> 14e0e4d82fSDavid Howells #include <net/sock.h> 15be6e6707SDavid Howells #include <net/af_rxrpc.h> 1617926a79SDavid Howells #include <rxrpc/packet.h> 1717926a79SDavid Howells 1817926a79SDavid Howells #if 0 1917926a79SDavid Howells #define CHECK_SLAB_OKAY(X) \ 2017926a79SDavid Howells BUG_ON(atomic_read((X)) >> (sizeof(atomic_t) - 2) == \ 2117926a79SDavid Howells (POISON_FREE << 8 | POISON_FREE)) 2217926a79SDavid Howells #else 2317926a79SDavid Howells #define CHECK_SLAB_OKAY(X) do {} while (0) 2417926a79SDavid Howells #endif 2517926a79SDavid Howells 2617926a79SDavid Howells #define FCRYPT_BSIZE 8 2717926a79SDavid Howells struct rxrpc_crypt { 2817926a79SDavid Howells union { 2917926a79SDavid Howells u8 x[FCRYPT_BSIZE]; 3091e916cfSAl Viro __be32 n[2]; 3117926a79SDavid Howells }; 3217926a79SDavid Howells } __attribute__((aligned(8))); 3317926a79SDavid Howells 34651350d1SDavid Howells #define rxrpc_queue_work(WS) queue_work(rxrpc_workqueue, (WS)) 35651350d1SDavid Howells #define rxrpc_queue_delayed_work(WS,D) \ 36651350d1SDavid Howells queue_delayed_work(rxrpc_workqueue, (WS), (D)) 37651350d1SDavid Howells 38cc8feb8eSDavid Howells struct rxrpc_connection; 39cc8feb8eSDavid Howells 4017926a79SDavid Howells /* 41d001648eSDavid Howells * Mark applied to socket buffers. 42d001648eSDavid Howells */ 43d001648eSDavid Howells enum rxrpc_skb_mark { 44d001648eSDavid Howells RXRPC_SKB_MARK_DATA, /* data message */ 45d001648eSDavid Howells RXRPC_SKB_MARK_FINAL_ACK, /* final ACK received message */ 46d001648eSDavid Howells RXRPC_SKB_MARK_BUSY, /* server busy message */ 47d001648eSDavid Howells RXRPC_SKB_MARK_REMOTE_ABORT, /* remote abort message */ 48d001648eSDavid Howells RXRPC_SKB_MARK_LOCAL_ABORT, /* local abort message */ 49d001648eSDavid Howells RXRPC_SKB_MARK_NET_ERROR, /* network error message */ 50d001648eSDavid Howells RXRPC_SKB_MARK_LOCAL_ERROR, /* local error message */ 51d001648eSDavid Howells RXRPC_SKB_MARK_NEW_CALL, /* local error message */ 52d001648eSDavid Howells }; 53d001648eSDavid Howells 54d001648eSDavid Howells /* 5517926a79SDavid Howells * sk_state for RxRPC sockets 5617926a79SDavid Howells */ 5717926a79SDavid Howells enum { 582341e077SDavid Howells RXRPC_UNBOUND = 0, 592341e077SDavid Howells RXRPC_CLIENT_UNBOUND, /* Unbound socket used as client */ 6017926a79SDavid Howells RXRPC_CLIENT_BOUND, /* client local address bound */ 6117926a79SDavid Howells RXRPC_SERVER_BOUND, /* server local address bound */ 6217926a79SDavid Howells RXRPC_SERVER_LISTENING, /* server listening for connections */ 6317926a79SDavid Howells RXRPC_CLOSE, /* socket is being closed */ 6417926a79SDavid Howells }; 6517926a79SDavid Howells 6617926a79SDavid Howells /* 6700e90712SDavid Howells * Service backlog preallocation. 6800e90712SDavid Howells * 6900e90712SDavid Howells * This contains circular buffers of preallocated peers, connections and calls 7000e90712SDavid Howells * for incoming service calls and their head and tail pointers. This allows 7100e90712SDavid Howells * calls to be set up in the data_ready handler, thereby avoiding the need to 7200e90712SDavid Howells * shuffle packets around so much. 7300e90712SDavid Howells */ 7400e90712SDavid Howells struct rxrpc_backlog { 7500e90712SDavid Howells unsigned short peer_backlog_head; 7600e90712SDavid Howells unsigned short peer_backlog_tail; 7700e90712SDavid Howells unsigned short conn_backlog_head; 7800e90712SDavid Howells unsigned short conn_backlog_tail; 7900e90712SDavid Howells unsigned short call_backlog_head; 8000e90712SDavid Howells unsigned short call_backlog_tail; 8100e90712SDavid Howells #define RXRPC_BACKLOG_MAX 32 8200e90712SDavid Howells struct rxrpc_peer *peer_backlog[RXRPC_BACKLOG_MAX]; 8300e90712SDavid Howells struct rxrpc_connection *conn_backlog[RXRPC_BACKLOG_MAX]; 8400e90712SDavid Howells struct rxrpc_call *call_backlog[RXRPC_BACKLOG_MAX]; 8500e90712SDavid Howells }; 8600e90712SDavid Howells 8700e90712SDavid Howells /* 8817926a79SDavid Howells * RxRPC socket definition 8917926a79SDavid Howells */ 9017926a79SDavid Howells struct rxrpc_sock { 9117926a79SDavid Howells /* WARNING: sk has to be the first member */ 9217926a79SDavid Howells struct sock sk; 93d001648eSDavid Howells rxrpc_notify_new_call_t notify_new_call; /* Func to notify of new call */ 9400e90712SDavid Howells rxrpc_discard_new_call_t discard_new_call; /* Func to discard a new call */ 9517926a79SDavid Howells struct rxrpc_local *local; /* local endpoint */ 96de8d6c74SDavid Howells struct hlist_node listen_link; /* link in the local endpoint's listen list */ 9717926a79SDavid Howells struct list_head secureq; /* calls awaiting connection security clearance */ 9817926a79SDavid Howells struct list_head acceptq; /* calls awaiting acceptance */ 9900e90712SDavid Howells struct rxrpc_backlog *backlog; /* Preallocation for services */ 10017926a79SDavid Howells struct key *key; /* security for this socket */ 10117926a79SDavid Howells struct key *securities; /* list of server security descriptors */ 10200e90712SDavid Howells struct rb_root calls; /* User ID -> call mapping */ 10317926a79SDavid Howells unsigned long flags; 1042341e077SDavid Howells #define RXRPC_SOCK_CONNECTED 0 /* connect_srx is set */ 10517926a79SDavid Howells rwlock_t call_lock; /* lock for calls */ 10617926a79SDavid Howells u32 min_sec_level; /* minimum security level */ 10717926a79SDavid Howells #define RXRPC_SECURITY_MAX RXRPC_SECURITY_ENCRYPT 108cc8feb8eSDavid Howells bool exclusive; /* Exclusive connection for a client socket */ 109cc8feb8eSDavid Howells sa_family_t family; /* Protocol family created with */ 11017926a79SDavid Howells struct sockaddr_rxrpc srx; /* local address */ 1112341e077SDavid Howells struct sockaddr_rxrpc connect_srx; /* Default client address from connect() */ 11217926a79SDavid Howells }; 11317926a79SDavid Howells 11417926a79SDavid Howells #define rxrpc_sk(__sk) container_of((__sk), struct rxrpc_sock, sk) 11517926a79SDavid Howells 11617926a79SDavid Howells /* 1170d12f8a4SDavid Howells * CPU-byteorder normalised Rx packet header. 1180d12f8a4SDavid Howells */ 1190d12f8a4SDavid Howells struct rxrpc_host_header { 1200d12f8a4SDavid Howells u32 epoch; /* client boot timestamp */ 1210d12f8a4SDavid Howells u32 cid; /* connection and channel ID */ 1220d12f8a4SDavid Howells u32 callNumber; /* call ID (0 for connection-level packets) */ 1230d12f8a4SDavid Howells u32 seq; /* sequence number of pkt in call stream */ 1240d12f8a4SDavid Howells u32 serial; /* serial number of pkt sent to network */ 1250d12f8a4SDavid Howells u8 type; /* packet type */ 1260d12f8a4SDavid Howells u8 flags; /* packet flags */ 1270d12f8a4SDavid Howells u8 userStatus; /* app-layer defined status */ 1280d12f8a4SDavid Howells u8 securityIndex; /* security protocol ID */ 1290d12f8a4SDavid Howells union { 1300d12f8a4SDavid Howells u16 _rsvd; /* reserved */ 1310d12f8a4SDavid Howells u16 cksum; /* kerberos security checksum */ 1320d12f8a4SDavid Howells }; 1330d12f8a4SDavid Howells u16 serviceId; /* service ID */ 1340d12f8a4SDavid Howells } __packed; 1350d12f8a4SDavid Howells 1360d12f8a4SDavid Howells /* 13717926a79SDavid Howells * RxRPC socket buffer private variables 13817926a79SDavid Howells * - max 48 bytes (struct sk_buff::cb) 13917926a79SDavid Howells */ 14017926a79SDavid Howells struct rxrpc_skb_priv { 14117926a79SDavid Howells struct rxrpc_call *call; /* call with which associated */ 14217926a79SDavid Howells unsigned long resend_at; /* time in jiffies at which to resend */ 14317926a79SDavid Howells union { 14495c96174SEric Dumazet unsigned int offset; /* offset into buffer of next read */ 14517926a79SDavid Howells int remain; /* amount of space remaining for next write */ 14617926a79SDavid Howells u32 error; /* network error code */ 14717926a79SDavid Howells bool need_resend; /* T if needs resending */ 14817926a79SDavid Howells }; 14917926a79SDavid Howells 1500d12f8a4SDavid Howells struct rxrpc_host_header hdr; /* RxRPC packet header from this packet */ 15117926a79SDavid Howells }; 15217926a79SDavid Howells 15317926a79SDavid Howells #define rxrpc_skb(__skb) ((struct rxrpc_skb_priv *) &(__skb)->cb) 15417926a79SDavid Howells 15517926a79SDavid Howells /* 15617926a79SDavid Howells * RxRPC security module interface 15717926a79SDavid Howells */ 15817926a79SDavid Howells struct rxrpc_security { 15917926a79SDavid Howells const char *name; /* name of this service */ 16017926a79SDavid Howells u8 security_index; /* security type provided */ 16117926a79SDavid Howells 162648af7fcSDavid Howells /* Initialise a security service */ 163648af7fcSDavid Howells int (*init)(void); 164648af7fcSDavid Howells 165648af7fcSDavid Howells /* Clean up a security service */ 166648af7fcSDavid Howells void (*exit)(void); 167648af7fcSDavid Howells 16817926a79SDavid Howells /* initialise a connection's security */ 16917926a79SDavid Howells int (*init_connection_security)(struct rxrpc_connection *); 17017926a79SDavid Howells 17117926a79SDavid Howells /* prime a connection's packet security */ 172a263629dSHerbert Xu int (*prime_packet_security)(struct rxrpc_connection *); 17317926a79SDavid Howells 17417926a79SDavid Howells /* impose security on a packet */ 175a263629dSHerbert Xu int (*secure_packet)(struct rxrpc_call *, 17617926a79SDavid Howells struct sk_buff *, 17717926a79SDavid Howells size_t, 17817926a79SDavid Howells void *); 17917926a79SDavid Howells 18017926a79SDavid Howells /* verify the security on a received packet */ 1815a42976dSDavid Howells int (*verify_packet)(struct rxrpc_call *, struct sk_buff *, 1825a42976dSDavid Howells rxrpc_seq_t, u16); 18317926a79SDavid Howells 18417926a79SDavid Howells /* issue a challenge */ 18517926a79SDavid Howells int (*issue_challenge)(struct rxrpc_connection *); 18617926a79SDavid Howells 18717926a79SDavid Howells /* respond to a challenge */ 18817926a79SDavid Howells int (*respond_to_challenge)(struct rxrpc_connection *, 18917926a79SDavid Howells struct sk_buff *, 19017926a79SDavid Howells u32 *); 19117926a79SDavid Howells 19217926a79SDavid Howells /* verify a response */ 19317926a79SDavid Howells int (*verify_response)(struct rxrpc_connection *, 19417926a79SDavid Howells struct sk_buff *, 19517926a79SDavid Howells u32 *); 19617926a79SDavid Howells 19717926a79SDavid Howells /* clear connection security */ 19817926a79SDavid Howells void (*clear)(struct rxrpc_connection *); 19917926a79SDavid Howells }; 20017926a79SDavid Howells 20117926a79SDavid Howells /* 2024f95dd78SDavid Howells * RxRPC local transport endpoint description 2034f95dd78SDavid Howells * - owned by a single AF_RXRPC socket 2044f95dd78SDavid Howells * - pointed to by transport socket struct sk_user_data 20517926a79SDavid Howells */ 20617926a79SDavid Howells struct rxrpc_local { 2074f95dd78SDavid Howells struct rcu_head rcu; 2084f95dd78SDavid Howells atomic_t usage; 2094f95dd78SDavid Howells struct list_head link; 21017926a79SDavid Howells struct socket *socket; /* my UDP socket */ 2114f95dd78SDavid Howells struct work_struct processor; 212de8d6c74SDavid Howells struct hlist_head services; /* services listening on this endpoint */ 21317926a79SDavid Howells struct rw_semaphore defrag_sem; /* control re-enablement of IP DF bit */ 21417926a79SDavid Howells struct sk_buff_head accept_queue; /* incoming calls awaiting acceptance */ 21517926a79SDavid Howells struct sk_buff_head reject_queue; /* packets awaiting rejection */ 21644ba0698SDavid Howells struct sk_buff_head event_queue; /* endpoint event packets awaiting processing */ 217999b69f8SDavid Howells struct rb_root client_conns; /* Client connections by socket params */ 218999b69f8SDavid Howells spinlock_t client_conns_lock; /* Lock for client_conns */ 21917926a79SDavid Howells spinlock_t lock; /* access lock */ 22017926a79SDavid Howells rwlock_t services_lock; /* lock for services list */ 22117926a79SDavid Howells int debug_id; /* debug ID for printks */ 2224f95dd78SDavid Howells bool dead; 22317926a79SDavid Howells struct sockaddr_rxrpc srx; /* local address */ 22417926a79SDavid Howells }; 22517926a79SDavid Howells 22617926a79SDavid Howells /* 22717926a79SDavid Howells * RxRPC remote transport endpoint definition 228be6e6707SDavid Howells * - matched by local endpoint, remote port, address and protocol type 22917926a79SDavid Howells */ 23017926a79SDavid Howells struct rxrpc_peer { 231be6e6707SDavid Howells struct rcu_head rcu; /* This must be first */ 232be6e6707SDavid Howells atomic_t usage; 233be6e6707SDavid Howells unsigned long hash_key; 234be6e6707SDavid Howells struct hlist_node hash_link; 235be6e6707SDavid Howells struct rxrpc_local *local; 236f66d7490SDavid Howells struct hlist_head error_targets; /* targets for net error distribution */ 237f66d7490SDavid Howells struct work_struct error_distributor; 238aa390bbeSDavid Howells struct rb_root service_conns; /* Service connections */ 2398496af50SDavid Howells seqlock_t service_conn_lock; 24017926a79SDavid Howells spinlock_t lock; /* access lock */ 24195c96174SEric Dumazet unsigned int if_mtu; /* interface MTU for this peer */ 24295c96174SEric Dumazet unsigned int mtu; /* network MTU for this peer */ 24395c96174SEric Dumazet unsigned int maxdata; /* data size (MTU - hdrsize) */ 24417926a79SDavid Howells unsigned short hdrsize; /* header size (IP + UDP + RxRPC) */ 24517926a79SDavid Howells int debug_id; /* debug ID for printks */ 246f66d7490SDavid Howells int error_report; /* Net (+0) or local (+1000000) to distribute */ 247f66d7490SDavid Howells #define RXRPC_LOCAL_ERROR_OFFSET 1000000 24817926a79SDavid Howells struct sockaddr_rxrpc srx; /* remote address */ 24917926a79SDavid Howells 25017926a79SDavid Howells /* calculated RTT cache */ 25117926a79SDavid Howells #define RXRPC_RTT_CACHE_SIZE 32 25217926a79SDavid Howells suseconds_t rtt; /* current RTT estimate (in uS) */ 25395c96174SEric Dumazet unsigned int rtt_point; /* next entry at which to insert */ 25495c96174SEric Dumazet unsigned int rtt_usage; /* amount of cache actually used */ 25517926a79SDavid Howells suseconds_t rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* calculated RTT cache */ 25617926a79SDavid Howells }; 25717926a79SDavid Howells 25817926a79SDavid Howells /* 25919ffa01cSDavid Howells * Keys for matching a connection. 26019ffa01cSDavid Howells */ 26119ffa01cSDavid Howells struct rxrpc_conn_proto { 262e8d70ce1SDavid Howells union { 263e8d70ce1SDavid Howells struct { 26419ffa01cSDavid Howells u32 epoch; /* epoch of this connection */ 26519ffa01cSDavid Howells u32 cid; /* connection ID */ 266e8d70ce1SDavid Howells }; 267e8d70ce1SDavid Howells u64 index_key; 26819ffa01cSDavid Howells }; 26919ffa01cSDavid Howells }; 27019ffa01cSDavid Howells 27119ffa01cSDavid Howells struct rxrpc_conn_parameters { 27219ffa01cSDavid Howells struct rxrpc_local *local; /* Representation of local endpoint */ 27319ffa01cSDavid Howells struct rxrpc_peer *peer; /* Remote endpoint */ 27419ffa01cSDavid Howells struct key *key; /* Security details */ 27519ffa01cSDavid Howells bool exclusive; /* T if conn is exclusive */ 27619ffa01cSDavid Howells u16 service_id; /* Service ID for this connection */ 27719ffa01cSDavid Howells u32 security_level; /* Security level selected */ 27819ffa01cSDavid Howells }; 27919ffa01cSDavid Howells 28019ffa01cSDavid Howells /* 281bba304dbSDavid Howells * Bits in the connection flags. 282bba304dbSDavid Howells */ 283bba304dbSDavid Howells enum rxrpc_conn_flag { 284bba304dbSDavid Howells RXRPC_CONN_HAS_IDR, /* Has a client conn ID assigned */ 285001c1122SDavid Howells RXRPC_CONN_IN_SERVICE_CONNS, /* Conn is in peer->service_conns */ 286001c1122SDavid Howells RXRPC_CONN_IN_CLIENT_CONNS, /* Conn is in local->client_conns */ 28745025bceSDavid Howells RXRPC_CONN_EXPOSED, /* Conn has extra ref for exposure */ 28845025bceSDavid Howells RXRPC_CONN_DONT_REUSE, /* Don't reuse this connection */ 28945025bceSDavid Howells RXRPC_CONN_COUNTED, /* Counted by rxrpc_nr_client_conns */ 290bba304dbSDavid Howells }; 291bba304dbSDavid Howells 292bba304dbSDavid Howells /* 293bba304dbSDavid Howells * Events that can be raised upon a connection. 294bba304dbSDavid Howells */ 295bba304dbSDavid Howells enum rxrpc_conn_event { 296bba304dbSDavid Howells RXRPC_CONN_EV_CHALLENGE, /* Send challenge packet */ 297bba304dbSDavid Howells }; 298bba304dbSDavid Howells 299bba304dbSDavid Howells /* 30045025bceSDavid Howells * The connection cache state. 30145025bceSDavid Howells */ 30245025bceSDavid Howells enum rxrpc_conn_cache_state { 30345025bceSDavid Howells RXRPC_CONN_CLIENT_INACTIVE, /* Conn is not yet listed */ 30445025bceSDavid Howells RXRPC_CONN_CLIENT_WAITING, /* Conn is on wait list, waiting for capacity */ 30545025bceSDavid Howells RXRPC_CONN_CLIENT_ACTIVE, /* Conn is on active list, doing calls */ 30645025bceSDavid Howells RXRPC_CONN_CLIENT_CULLED, /* Conn is culled and delisted, doing calls */ 30745025bceSDavid Howells RXRPC_CONN_CLIENT_IDLE, /* Conn is on idle list, doing mostly nothing */ 30845025bceSDavid Howells }; 30945025bceSDavid Howells 31045025bceSDavid Howells /* 311bba304dbSDavid Howells * The connection protocol state. 312bba304dbSDavid Howells */ 313bba304dbSDavid Howells enum rxrpc_conn_proto_state { 314bba304dbSDavid Howells RXRPC_CONN_UNUSED, /* Connection not yet attempted */ 315bba304dbSDavid Howells RXRPC_CONN_CLIENT, /* Client connection */ 31600e90712SDavid Howells RXRPC_CONN_SERVICE_PREALLOC, /* Service connection preallocation */ 317bba304dbSDavid Howells RXRPC_CONN_SERVICE_UNSECURED, /* Service unsecured connection */ 318bba304dbSDavid Howells RXRPC_CONN_SERVICE_CHALLENGING, /* Service challenging for security */ 319bba304dbSDavid Howells RXRPC_CONN_SERVICE, /* Service secured connection */ 320bba304dbSDavid Howells RXRPC_CONN_REMOTELY_ABORTED, /* Conn aborted by peer */ 321bba304dbSDavid Howells RXRPC_CONN_LOCALLY_ABORTED, /* Conn aborted locally */ 322bba304dbSDavid Howells RXRPC_CONN__NR_STATES 323bba304dbSDavid Howells }; 324bba304dbSDavid Howells 325bba304dbSDavid Howells /* 32617926a79SDavid Howells * RxRPC connection definition 327aa390bbeSDavid Howells * - matched by { local, peer, epoch, conn_id, direction } 32817926a79SDavid Howells * - each connection can only handle four simultaneous calls 32917926a79SDavid Howells */ 33017926a79SDavid Howells struct rxrpc_connection { 33119ffa01cSDavid Howells struct rxrpc_conn_proto proto; 33219ffa01cSDavid Howells struct rxrpc_conn_parameters params; 33319ffa01cSDavid Howells 33445025bceSDavid Howells atomic_t usage; 33545025bceSDavid Howells struct rcu_head rcu; 33645025bceSDavid Howells struct list_head cache_link; 337a1399f8bSDavid Howells 33845025bceSDavid Howells spinlock_t channel_lock; 33945025bceSDavid Howells unsigned char active_chans; /* Mask of active channels */ 34045025bceSDavid Howells #define RXRPC_ACTIVE_CHANS_MASK ((1 << RXRPC_MAXCALLS) - 1) 34145025bceSDavid Howells struct list_head waiting_calls; /* Calls waiting for channels */ 342a1399f8bSDavid Howells struct rxrpc_channel { 343a1399f8bSDavid Howells struct rxrpc_call __rcu *call; /* Active call */ 344a1399f8bSDavid Howells u32 call_id; /* ID of current call */ 345a1399f8bSDavid Howells u32 call_counter; /* Call ID counter */ 346a1399f8bSDavid Howells u32 last_call; /* ID of last call */ 34718bfeba5SDavid Howells u8 last_type; /* Type of last packet */ 34818bfeba5SDavid Howells u16 last_service_id; 34918bfeba5SDavid Howells union { 35018bfeba5SDavid Howells u32 last_seq; 35118bfeba5SDavid Howells u32 last_abort; 35218bfeba5SDavid Howells }; 353a1399f8bSDavid Howells } channels[RXRPC_MAXCALLS]; 354999b69f8SDavid Howells 35517926a79SDavid Howells struct work_struct processor; /* connection event processor */ 356999b69f8SDavid Howells union { 357999b69f8SDavid Howells struct rb_node client_node; /* Node in local->client_conns */ 358aa390bbeSDavid Howells struct rb_node service_node; /* Node in peer->service_conns */ 359999b69f8SDavid Howells }; 3604d028b2cSDavid Howells struct list_head proc_link; /* link in procfs list */ 36117926a79SDavid Howells struct list_head link; /* link in master connection list */ 36217926a79SDavid Howells struct sk_buff_head rx_queue; /* received conn-level packets */ 363648af7fcSDavid Howells const struct rxrpc_security *security; /* applied security module */ 36417926a79SDavid Howells struct key *server_key; /* security for this service */ 3651afe593bSHerbert Xu struct crypto_skcipher *cipher; /* encryption handle */ 36617926a79SDavid Howells struct rxrpc_crypt csum_iv; /* packet checksum base */ 3674a3388c8SDavid Howells unsigned long flags; 36817926a79SDavid Howells unsigned long events; 369f51b4480SDavid Howells unsigned long idle_timestamp; /* Time at which last became idle */ 37017926a79SDavid Howells spinlock_t state_lock; /* state-change lock */ 371cf13258fSDavid Howells enum rxrpc_conn_cache_state cache_state; 372cf13258fSDavid Howells enum rxrpc_conn_proto_state state; /* current state of connection */ 373dc44b3a0SDavid Howells u32 local_abort; /* local abort code */ 374dc44b3a0SDavid Howells u32 remote_abort; /* remote abort code */ 37517926a79SDavid Howells int debug_id; /* debug ID for printks */ 37617926a79SDavid Howells atomic_t serial; /* packet serial number counter */ 377563ea7d5SDavid Howells unsigned int hi_serial; /* highest serial number received */ 37817926a79SDavid Howells u8 size_align; /* data size alignment (for security) */ 37917926a79SDavid Howells u8 header_size; /* rxrpc + security header size */ 38017926a79SDavid Howells u8 security_size; /* security header size */ 38117926a79SDavid Howells u32 security_nonce; /* response re-use preventer */ 38217926a79SDavid Howells u8 security_ix; /* security type */ 38317926a79SDavid Howells u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */ 38417926a79SDavid Howells }; 38517926a79SDavid Howells 38617926a79SDavid Howells /* 3875b8848d1SDavid Howells * Flags in call->flags. 3885b8848d1SDavid Howells */ 3895b8848d1SDavid Howells enum rxrpc_call_flag { 3905b8848d1SDavid Howells RXRPC_CALL_RELEASED, /* call has been released - no more message to userspace */ 3915b8848d1SDavid Howells RXRPC_CALL_TERMINAL_MSG, /* call has given the socket its final message */ 3925b8848d1SDavid Howells RXRPC_CALL_RCVD_LAST, /* all packets received */ 3935b8848d1SDavid Howells RXRPC_CALL_RUN_RTIMER, /* Tx resend timer started */ 3945b8848d1SDavid Howells RXRPC_CALL_TX_SOFT_ACK, /* sent some soft ACKs */ 3955b8848d1SDavid Howells RXRPC_CALL_INIT_ACCEPT, /* acceptance was initiated */ 3965b8848d1SDavid Howells RXRPC_CALL_HAS_USERID, /* has a user ID attached */ 3975b8848d1SDavid Howells RXRPC_CALL_EXPECT_OOS, /* expect out of sequence packets */ 398dabe5a79SDavid Howells RXRPC_CALL_IS_SERVICE, /* Call is service call */ 39945025bceSDavid Howells RXRPC_CALL_EXPOSED, /* The call was exposed to the world */ 400d001648eSDavid Howells RXRPC_CALL_RX_NO_MORE, /* Don't indicate MSG_MORE from recvmsg() */ 4015b8848d1SDavid Howells }; 4025b8848d1SDavid Howells 4035b8848d1SDavid Howells /* 4045b8848d1SDavid Howells * Events that can be raised on a call. 4055b8848d1SDavid Howells */ 4065b8848d1SDavid Howells enum rxrpc_call_event { 4074c198ad1SDavid Howells RXRPC_CALL_EV_RCVD_ACKALL, /* ACKALL or reply received */ 4084c198ad1SDavid Howells RXRPC_CALL_EV_RCVD_BUSY, /* busy packet received */ 4094c198ad1SDavid Howells RXRPC_CALL_EV_RCVD_ABORT, /* abort packet received */ 4104c198ad1SDavid Howells RXRPC_CALL_EV_RCVD_ERROR, /* network error received */ 4114c198ad1SDavid Howells RXRPC_CALL_EV_ACK_FINAL, /* need to generate final ACK (and release call) */ 4124c198ad1SDavid Howells RXRPC_CALL_EV_ACK, /* need to generate ACK */ 4134c198ad1SDavid Howells RXRPC_CALL_EV_REJECT_BUSY, /* need to generate busy message */ 4144c198ad1SDavid Howells RXRPC_CALL_EV_ABORT, /* need to generate abort */ 4154c198ad1SDavid Howells RXRPC_CALL_EV_CONN_ABORT, /* local connection abort generated */ 4164c198ad1SDavid Howells RXRPC_CALL_EV_RESEND_TIMER, /* Tx resend timer expired */ 4174c198ad1SDavid Howells RXRPC_CALL_EV_RESEND, /* Tx resend required */ 4184c198ad1SDavid Howells RXRPC_CALL_EV_DRAIN_RX_OOS, /* drain the Rx out of sequence queue */ 4194c198ad1SDavid Howells RXRPC_CALL_EV_LIFE_TIMER, /* call's lifetimer ran out */ 4204c198ad1SDavid Howells RXRPC_CALL_EV_ACCEPTED, /* incoming call accepted by userspace app */ 4214c198ad1SDavid Howells RXRPC_CALL_EV_SECURED, /* incoming call's connection is now secure */ 4224c198ad1SDavid Howells RXRPC_CALL_EV_POST_ACCEPT, /* need to post an "accept?" message to the app */ 4235b8848d1SDavid Howells }; 4245b8848d1SDavid Howells 4255b8848d1SDavid Howells /* 4265b8848d1SDavid Howells * The states that a call can be in. 4275b8848d1SDavid Howells */ 4285b8848d1SDavid Howells enum rxrpc_call_state { 429999b69f8SDavid Howells RXRPC_CALL_UNINITIALISED, 430999b69f8SDavid Howells RXRPC_CALL_CLIENT_AWAIT_CONN, /* - client waiting for connection to become available */ 4315b8848d1SDavid Howells RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */ 4325b8848d1SDavid Howells RXRPC_CALL_CLIENT_AWAIT_REPLY, /* - client awaiting reply */ 4335b8848d1SDavid Howells RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */ 4345b8848d1SDavid Howells RXRPC_CALL_CLIENT_FINAL_ACK, /* - client sending final ACK phase */ 43500e90712SDavid Howells RXRPC_CALL_SERVER_PREALLOC, /* - service preallocation */ 4365b8848d1SDavid Howells RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */ 4375b8848d1SDavid Howells RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */ 4385b8848d1SDavid Howells RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */ 4395b8848d1SDavid Howells RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */ 4405b8848d1SDavid Howells RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */ 4415b8848d1SDavid Howells RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */ 442f5c17aaeSDavid Howells RXRPC_CALL_COMPLETE, /* - call complete */ 443f5c17aaeSDavid Howells NR__RXRPC_CALL_STATES 444f5c17aaeSDavid Howells }; 445f5c17aaeSDavid Howells 446f5c17aaeSDavid Howells /* 447f5c17aaeSDavid Howells * Call completion condition (state == RXRPC_CALL_COMPLETE). 448f5c17aaeSDavid Howells */ 449f5c17aaeSDavid Howells enum rxrpc_call_completion { 450f5c17aaeSDavid Howells RXRPC_CALL_SUCCEEDED, /* - Normal termination */ 4515b8848d1SDavid Howells RXRPC_CALL_SERVER_BUSY, /* - call rejected by busy server */ 4525b8848d1SDavid Howells RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */ 4535b8848d1SDavid Howells RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */ 454f5c17aaeSDavid Howells RXRPC_CALL_LOCAL_ERROR, /* - call failed due to local error */ 4555b8848d1SDavid Howells RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */ 456f5c17aaeSDavid Howells NR__RXRPC_CALL_COMPLETIONS 4575b8848d1SDavid Howells }; 4585b8848d1SDavid Howells 4595b8848d1SDavid Howells /* 46017926a79SDavid Howells * RxRPC call definition 46117926a79SDavid Howells * - matched by { connection, call_id } 46217926a79SDavid Howells */ 46317926a79SDavid Howells struct rxrpc_call { 464dee46364SDavid Howells struct rcu_head rcu; 46517926a79SDavid Howells struct rxrpc_connection *conn; /* connection carrying call */ 466df5d8bf7SDavid Howells struct rxrpc_peer *peer; /* Peer record for remote address */ 4678d94aa38SDavid Howells struct rxrpc_sock __rcu *socket; /* socket responsible */ 46817926a79SDavid Howells struct timer_list lifetimer; /* lifetime remaining on call */ 46917926a79SDavid Howells struct timer_list ack_timer; /* ACK generation timer */ 47017926a79SDavid Howells struct timer_list resend_timer; /* Tx resend timer */ 47117926a79SDavid Howells struct work_struct processor; /* packet processor and ACK generator */ 472d001648eSDavid Howells rxrpc_notify_rx_t notify_rx; /* kernel service Rx notification function */ 47317926a79SDavid Howells struct list_head link; /* link in master call list */ 47445025bceSDavid Howells struct list_head chan_wait_link; /* Link in conn->waiting_calls */ 475f66d7490SDavid Howells struct hlist_node error_link; /* link in error distribution list */ 47617926a79SDavid Howells struct list_head accept_link; /* calls awaiting acceptance */ 47717926a79SDavid Howells struct rb_node sock_node; /* node in socket call tree */ 47817926a79SDavid Howells struct sk_buff_head rx_queue; /* received packets */ 47917926a79SDavid Howells struct sk_buff_head rx_oos_queue; /* packets received out of sequence */ 480d001648eSDavid Howells struct sk_buff_head knlrecv_queue; /* Queue for kernel_recv [TODO: replace this] */ 48117926a79SDavid Howells struct sk_buff *tx_pending; /* Tx socket buffer being filled */ 48245025bceSDavid Howells wait_queue_head_t waitq; /* Wait queue for channel or Tx */ 483a263629dSHerbert Xu __be32 crypto_buf[2]; /* Temporary packet crypto buffer */ 48417926a79SDavid Howells unsigned long user_call_ID; /* user-defined call ID */ 48517926a79SDavid Howells unsigned long creation_jif; /* time of call creation */ 48617926a79SDavid Howells unsigned long flags; 48717926a79SDavid Howells unsigned long events; 48817926a79SDavid Howells spinlock_t lock; 48917926a79SDavid Howells rwlock_t state_lock; /* lock for state transition */ 490f5c17aaeSDavid Howells u32 abort_code; /* Local/remote abort code */ 491f5c17aaeSDavid Howells int error; /* Local error incurred */ 492cf13258fSDavid Howells enum rxrpc_call_state state; /* current state of call */ 493cf13258fSDavid Howells enum rxrpc_call_completion completion; /* Call completion condition */ 49417926a79SDavid Howells atomic_t usage; 49517926a79SDavid Howells atomic_t sequence; /* Tx data packet sequence counter */ 496dabe5a79SDavid Howells u16 service_id; /* service ID */ 497278ac0cdSDavid Howells u8 security_ix; /* Security type */ 498dabe5a79SDavid Howells u32 call_id; /* call ID on connection */ 499dabe5a79SDavid Howells u32 cid; /* connection ID plus channel index */ 500dabe5a79SDavid Howells int debug_id; /* debug ID for printks */ 50117926a79SDavid Howells 50217926a79SDavid Howells /* transmission-phase ACK management */ 5034e36a95eSDavid Howells u8 acks_head; /* offset into window of first entry */ 5044e36a95eSDavid Howells u8 acks_tail; /* offset into window of last entry */ 5054e36a95eSDavid Howells u8 acks_winsz; /* size of un-ACK'd window */ 5064e36a95eSDavid Howells u8 acks_unacked; /* lowest unacked packet in last ACK received */ 50717926a79SDavid Howells int acks_latest; /* serial number of latest ACK received */ 50817926a79SDavid Howells rxrpc_seq_t acks_hard; /* highest definitively ACK'd msg seq */ 50917926a79SDavid Howells unsigned long *acks_window; /* sent packet window 51017926a79SDavid Howells * - elements are pointers with LSB set if ACK'd 51117926a79SDavid Howells */ 51217926a79SDavid Howells 51317926a79SDavid Howells /* receive-phase ACK management */ 51417926a79SDavid Howells rxrpc_seq_t rx_data_expect; /* next data seq ID expected to be received */ 51517926a79SDavid Howells rxrpc_seq_t rx_data_post; /* next data seq ID expected to be posted */ 51617926a79SDavid Howells rxrpc_seq_t rx_data_recv; /* last data seq ID encountered by recvmsg */ 51717926a79SDavid Howells rxrpc_seq_t rx_data_eaten; /* last data seq ID consumed by recvmsg */ 51817926a79SDavid Howells rxrpc_seq_t rx_first_oos; /* first packet in rx_oos_queue (or 0) */ 51917926a79SDavid Howells rxrpc_seq_t ackr_win_top; /* top of ACK window (rx_data_eaten is bottom) */ 5200d12f8a4SDavid Howells rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */ 5214e36a95eSDavid Howells u8 ackr_reason; /* reason to ACK */ 522563ea7d5SDavid Howells u16 ackr_skew; /* skew on packet being ACK'd */ 5230d12f8a4SDavid Howells rxrpc_serial_t ackr_serial; /* serial of packet being ACK'd */ 52417926a79SDavid Howells atomic_t ackr_not_idle; /* number of packets in Rx queue */ 52517926a79SDavid Howells 52617926a79SDavid Howells /* received packet records, 1 bit per record */ 52717926a79SDavid Howells #define RXRPC_ACKR_WINDOW_ASZ DIV_ROUND_UP(RXRPC_MAXACKS, BITS_PER_LONG) 52817926a79SDavid Howells unsigned long ackr_window[RXRPC_ACKR_WINDOW_ASZ + 1]; 52917926a79SDavid Howells }; 53017926a79SDavid Howells 531fff72429SDavid Howells enum rxrpc_call_trace { 532fff72429SDavid Howells rxrpc_call_new_client, 533fff72429SDavid Howells rxrpc_call_new_service, 534fff72429SDavid Howells rxrpc_call_queued, 535fff72429SDavid Howells rxrpc_call_queued_ref, 536fff72429SDavid Howells rxrpc_call_seen, 537fff72429SDavid Howells rxrpc_call_got, 538fff72429SDavid Howells rxrpc_call_got_skb, 539fff72429SDavid Howells rxrpc_call_got_userid, 540fff72429SDavid Howells rxrpc_call_put, 541fff72429SDavid Howells rxrpc_call_put_skb, 542fff72429SDavid Howells rxrpc_call_put_userid, 543fff72429SDavid Howells rxrpc_call_put_noqueue, 544fff72429SDavid Howells rxrpc_call__nr_trace 545fff72429SDavid Howells }; 546fff72429SDavid Howells 547fff72429SDavid Howells extern const char rxrpc_call_traces[rxrpc_call__nr_trace][4]; 548fff72429SDavid Howells 549df844fd4SDavid Howells #include <trace/events/rxrpc.h> 550df844fd4SDavid Howells 55117926a79SDavid Howells /* 552651350d1SDavid Howells * af_rxrpc.c 55317926a79SDavid Howells */ 554651350d1SDavid Howells extern atomic_t rxrpc_n_skbs; 5550d12f8a4SDavid Howells extern u32 rxrpc_epoch; 556651350d1SDavid Howells extern atomic_t rxrpc_debug_id; 557651350d1SDavid Howells extern struct workqueue_struct *rxrpc_workqueue; 55817926a79SDavid Howells 55917926a79SDavid Howells /* 5600d81a51aSDavid Howells * call_accept.c 56117926a79SDavid Howells */ 56200e90712SDavid Howells int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t); 56300e90712SDavid Howells void rxrpc_discard_prealloc(struct rxrpc_sock *); 5644f95dd78SDavid Howells void rxrpc_accept_incoming_calls(struct rxrpc_local *); 565d001648eSDavid Howells struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long, 566d001648eSDavid Howells rxrpc_notify_rx_t); 567c1b1203dSJoe Perches int rxrpc_reject_call(struct rxrpc_sock *); 56817926a79SDavid Howells 56917926a79SDavid Howells /* 5700d81a51aSDavid Howells * call_event.c 57117926a79SDavid Howells */ 572563ea7d5SDavid Howells void __rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool); 573563ea7d5SDavid Howells void rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool); 574c1b1203dSJoe Perches void rxrpc_process_call(struct work_struct *); 57517926a79SDavid Howells 57617926a79SDavid Howells /* 5770d81a51aSDavid Howells * call_object.c 57817926a79SDavid Howells */ 579f5c17aaeSDavid Howells extern const char *const rxrpc_call_states[]; 580f5c17aaeSDavid Howells extern const char *const rxrpc_call_completions[]; 581dad8aff7SDavid Howells extern unsigned int rxrpc_max_call_lifetime; 58217926a79SDavid Howells extern struct kmem_cache *rxrpc_call_jar; 58317926a79SDavid Howells extern struct list_head rxrpc_calls; 58417926a79SDavid Howells extern rwlock_t rxrpc_call_lock; 58517926a79SDavid Howells 5862341e077SDavid Howells struct rxrpc_call *rxrpc_find_call_by_user_ID(struct rxrpc_sock *, unsigned long); 58700e90712SDavid Howells struct rxrpc_call *rxrpc_alloc_call(gfp_t); 5882341e077SDavid Howells struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *, 58919ffa01cSDavid Howells struct rxrpc_conn_parameters *, 590999b69f8SDavid Howells struct sockaddr_rxrpc *, 5912341e077SDavid Howells unsigned long, gfp_t); 592c1b1203dSJoe Perches struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *, 59317926a79SDavid Howells struct rxrpc_connection *, 59442886ffeSDavid Howells struct sk_buff *); 5958d94aa38SDavid Howells void rxrpc_release_call(struct rxrpc_sock *, struct rxrpc_call *); 596c1b1203dSJoe Perches void rxrpc_release_calls_on_socket(struct rxrpc_sock *); 5978d94aa38SDavid Howells bool __rxrpc_queue_call(struct rxrpc_call *); 5988d94aa38SDavid Howells bool rxrpc_queue_call(struct rxrpc_call *); 599e34d4234SDavid Howells void rxrpc_see_call(struct rxrpc_call *); 600fff72429SDavid Howells void rxrpc_get_call(struct rxrpc_call *, enum rxrpc_call_trace); 601fff72429SDavid Howells void rxrpc_put_call(struct rxrpc_call *, enum rxrpc_call_trace); 602e34d4234SDavid Howells void rxrpc_get_call_for_skb(struct rxrpc_call *, struct sk_buff *); 603e34d4234SDavid Howells void rxrpc_put_call_for_skb(struct rxrpc_call *, struct sk_buff *); 60400e90712SDavid Howells void rxrpc_cleanup_call(struct rxrpc_call *); 605c1b1203dSJoe Perches void __exit rxrpc_destroy_all_calls(void); 60617926a79SDavid Howells 607dabe5a79SDavid Howells static inline bool rxrpc_is_service_call(const struct rxrpc_call *call) 608dabe5a79SDavid Howells { 609dabe5a79SDavid Howells return test_bit(RXRPC_CALL_IS_SERVICE, &call->flags); 610dabe5a79SDavid Howells } 611dabe5a79SDavid Howells 612dabe5a79SDavid Howells static inline bool rxrpc_is_client_call(const struct rxrpc_call *call) 613dabe5a79SDavid Howells { 614dabe5a79SDavid Howells return !rxrpc_is_service_call(call); 615dabe5a79SDavid Howells } 616dabe5a79SDavid Howells 61717926a79SDavid Howells /* 618f5c17aaeSDavid Howells * Transition a call to the complete state. 619f5c17aaeSDavid Howells */ 620f5c17aaeSDavid Howells static inline bool __rxrpc_set_call_completion(struct rxrpc_call *call, 621f5c17aaeSDavid Howells enum rxrpc_call_completion compl, 622f5c17aaeSDavid Howells u32 abort_code, 623f5c17aaeSDavid Howells int error) 624f5c17aaeSDavid Howells { 625f5c17aaeSDavid Howells if (call->state < RXRPC_CALL_COMPLETE) { 626f5c17aaeSDavid Howells call->abort_code = abort_code; 627f5c17aaeSDavid Howells call->error = error; 628f5c17aaeSDavid Howells call->completion = compl, 629f5c17aaeSDavid Howells call->state = RXRPC_CALL_COMPLETE; 630f5c17aaeSDavid Howells return true; 631f5c17aaeSDavid Howells } 632f5c17aaeSDavid Howells return false; 633f5c17aaeSDavid Howells } 634f5c17aaeSDavid Howells 635f5c17aaeSDavid Howells static inline bool rxrpc_set_call_completion(struct rxrpc_call *call, 636f5c17aaeSDavid Howells enum rxrpc_call_completion compl, 637f5c17aaeSDavid Howells u32 abort_code, 638f5c17aaeSDavid Howells int error) 639f5c17aaeSDavid Howells { 640e8d6bbb0SDavid Howells bool ret; 641f5c17aaeSDavid Howells 642f5c17aaeSDavid Howells write_lock_bh(&call->state_lock); 643f5c17aaeSDavid Howells ret = __rxrpc_set_call_completion(call, compl, abort_code, error); 644f5c17aaeSDavid Howells write_unlock_bh(&call->state_lock); 645f5c17aaeSDavid Howells return ret; 646f5c17aaeSDavid Howells } 647f5c17aaeSDavid Howells 648f5c17aaeSDavid Howells /* 649f5c17aaeSDavid Howells * Record that a call successfully completed. 650f5c17aaeSDavid Howells */ 651e8d6bbb0SDavid Howells static inline bool __rxrpc_call_completed(struct rxrpc_call *call) 652f5c17aaeSDavid Howells { 653e8d6bbb0SDavid Howells return __rxrpc_set_call_completion(call, RXRPC_CALL_SUCCEEDED, 0, 0); 654f5c17aaeSDavid Howells } 655f5c17aaeSDavid Howells 656e8d6bbb0SDavid Howells static inline bool rxrpc_call_completed(struct rxrpc_call *call) 657f5c17aaeSDavid Howells { 658e8d6bbb0SDavid Howells bool ret; 659e8d6bbb0SDavid Howells 660f5c17aaeSDavid Howells write_lock_bh(&call->state_lock); 661e8d6bbb0SDavid Howells ret = __rxrpc_call_completed(call); 662f5c17aaeSDavid Howells write_unlock_bh(&call->state_lock); 663e8d6bbb0SDavid Howells return ret; 664f5c17aaeSDavid Howells } 665f5c17aaeSDavid Howells 666f5c17aaeSDavid Howells /* 667f5c17aaeSDavid Howells * Record that a call is locally aborted. 668f5c17aaeSDavid Howells */ 6695a42976dSDavid Howells static inline bool __rxrpc_abort_call(const char *why, struct rxrpc_call *call, 6705a42976dSDavid Howells rxrpc_seq_t seq, 671f5c17aaeSDavid Howells u32 abort_code, int error) 672f5c17aaeSDavid Howells { 6735a42976dSDavid Howells trace_rxrpc_abort(why, call->cid, call->call_id, seq, 6745a42976dSDavid Howells abort_code, error); 675f5c17aaeSDavid Howells if (__rxrpc_set_call_completion(call, 676f5c17aaeSDavid Howells RXRPC_CALL_LOCALLY_ABORTED, 677f5c17aaeSDavid Howells abort_code, error)) { 678f5c17aaeSDavid Howells set_bit(RXRPC_CALL_EV_ABORT, &call->events); 679f5c17aaeSDavid Howells return true; 680f5c17aaeSDavid Howells } 681f5c17aaeSDavid Howells return false; 682f5c17aaeSDavid Howells } 683f5c17aaeSDavid Howells 6845a42976dSDavid Howells static inline bool rxrpc_abort_call(const char *why, struct rxrpc_call *call, 6855a42976dSDavid Howells rxrpc_seq_t seq, u32 abort_code, int error) 686f5c17aaeSDavid Howells { 687f5c17aaeSDavid Howells bool ret; 688f5c17aaeSDavid Howells 689f5c17aaeSDavid Howells write_lock_bh(&call->state_lock); 6905a42976dSDavid Howells ret = __rxrpc_abort_call(why, call, seq, abort_code, error); 691f5c17aaeSDavid Howells write_unlock_bh(&call->state_lock); 692f5c17aaeSDavid Howells return ret; 693f5c17aaeSDavid Howells } 694f5c17aaeSDavid Howells 695f5c17aaeSDavid Howells /* 6964a3388c8SDavid Howells * conn_client.c 6974a3388c8SDavid Howells */ 69845025bceSDavid Howells extern unsigned int rxrpc_max_client_connections; 69945025bceSDavid Howells extern unsigned int rxrpc_reap_client_connections; 70045025bceSDavid Howells extern unsigned int rxrpc_conn_idle_client_expiry; 70145025bceSDavid Howells extern unsigned int rxrpc_conn_idle_client_fast_expiry; 7024a3388c8SDavid Howells extern struct idr rxrpc_client_conn_ids; 7034a3388c8SDavid Howells 704eb9b9d22SDavid Howells void rxrpc_destroy_client_conn_ids(void); 705c6d2b8d7SDavid Howells int rxrpc_connect_call(struct rxrpc_call *, struct rxrpc_conn_parameters *, 706c6d2b8d7SDavid Howells struct sockaddr_rxrpc *, gfp_t); 70745025bceSDavid Howells void rxrpc_expose_client_call(struct rxrpc_call *); 70845025bceSDavid Howells void rxrpc_disconnect_client_call(struct rxrpc_call *); 70945025bceSDavid Howells void rxrpc_put_client_conn(struct rxrpc_connection *); 71045025bceSDavid Howells void __exit rxrpc_destroy_all_client_connections(void); 7114a3388c8SDavid Howells 7124a3388c8SDavid Howells /* 7130d81a51aSDavid Howells * conn_event.c 7140d81a51aSDavid Howells */ 7150d81a51aSDavid Howells void rxrpc_process_connection(struct work_struct *); 7160d81a51aSDavid Howells void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *); 7174f95dd78SDavid Howells void rxrpc_reject_packets(struct rxrpc_local *); 7180d81a51aSDavid Howells 7190d81a51aSDavid Howells /* 7200d81a51aSDavid Howells * conn_object.c 72117926a79SDavid Howells */ 722dad8aff7SDavid Howells extern unsigned int rxrpc_connection_expiry; 72317926a79SDavid Howells extern struct list_head rxrpc_connections; 7244d028b2cSDavid Howells extern struct list_head rxrpc_connection_proc_list; 72517926a79SDavid Howells extern rwlock_t rxrpc_connection_lock; 72617926a79SDavid Howells 7278496af50SDavid Howells int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *); 728c6d2b8d7SDavid Howells struct rxrpc_connection *rxrpc_alloc_connection(gfp_t); 7298496af50SDavid Howells struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *, 730aa390bbeSDavid Howells struct sk_buff *); 73145025bceSDavid Howells void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *); 732999b69f8SDavid Howells void rxrpc_disconnect_call(struct rxrpc_call *); 73345025bceSDavid Howells void rxrpc_kill_connection(struct rxrpc_connection *); 734f51b4480SDavid Howells void __rxrpc_put_connection(struct rxrpc_connection *); 735c1b1203dSJoe Perches void __exit rxrpc_destroy_all_connections(void); 73617926a79SDavid Howells 73719ffa01cSDavid Howells static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn) 73819ffa01cSDavid Howells { 73919ffa01cSDavid Howells return conn->out_clientflag; 74019ffa01cSDavid Howells } 74119ffa01cSDavid Howells 74219ffa01cSDavid Howells static inline bool rxrpc_conn_is_service(const struct rxrpc_connection *conn) 74319ffa01cSDavid Howells { 744e8d70ce1SDavid Howells return !rxrpc_conn_is_client(conn); 74519ffa01cSDavid Howells } 74619ffa01cSDavid Howells 7475627cc8bSDavid Howells static inline void rxrpc_get_connection(struct rxrpc_connection *conn) 7485627cc8bSDavid Howells { 7495627cc8bSDavid Howells atomic_inc(&conn->usage); 7505627cc8bSDavid Howells } 7515627cc8bSDavid Howells 7522c4579e4SDavid Howells static inline 7532c4579e4SDavid Howells struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *conn) 7542c4579e4SDavid Howells { 7552c4579e4SDavid Howells return atomic_inc_not_zero(&conn->usage) ? conn : NULL; 7562c4579e4SDavid Howells } 7575acbee46SDavid Howells 758f51b4480SDavid Howells static inline void rxrpc_put_connection(struct rxrpc_connection *conn) 759f51b4480SDavid Howells { 76045025bceSDavid Howells if (!conn) 76145025bceSDavid Howells return; 76245025bceSDavid Howells 76345025bceSDavid Howells if (rxrpc_conn_is_client(conn)) { 76445025bceSDavid Howells if (atomic_dec_and_test(&conn->usage)) 76545025bceSDavid Howells rxrpc_put_client_conn(conn); 76645025bceSDavid Howells } else { 76745025bceSDavid Howells if (atomic_dec_return(&conn->usage) == 1) 768f51b4480SDavid Howells __rxrpc_put_connection(conn); 769f51b4480SDavid Howells } 77045025bceSDavid Howells } 771f51b4480SDavid Howells 7728496af50SDavid Howells static inline bool rxrpc_queue_conn(struct rxrpc_connection *conn) 7735acbee46SDavid Howells { 7748496af50SDavid Howells if (!rxrpc_get_connection_maybe(conn)) 7758496af50SDavid Howells return false; 7768496af50SDavid Howells if (!rxrpc_queue_work(&conn->processor)) 7772c4579e4SDavid Howells rxrpc_put_connection(conn); 7788496af50SDavid Howells return true; 7795acbee46SDavid Howells } 7805acbee46SDavid Howells 78117926a79SDavid Howells /* 7827877a4a4SDavid Howells * conn_service.c 7837877a4a4SDavid Howells */ 7848496af50SDavid Howells struct rxrpc_connection *rxrpc_find_service_conn_rcu(struct rxrpc_peer *, 7858496af50SDavid Howells struct sk_buff *); 7867877a4a4SDavid Howells struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *, 787d991b4a3SDavid Howells struct sockaddr_rxrpc *, 7887877a4a4SDavid Howells struct sk_buff *); 78900e90712SDavid Howells struct rxrpc_connection *rxrpc_prealloc_service_connection(gfp_t); 790001c1122SDavid Howells void rxrpc_unpublish_service_conn(struct rxrpc_connection *); 7917877a4a4SDavid Howells 7927877a4a4SDavid Howells /* 7930d81a51aSDavid Howells * input.c 79417926a79SDavid Howells */ 795676d2369SDavid S. Miller void rxrpc_data_ready(struct sock *); 796c1b1203dSJoe Perches int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool, bool); 797c1b1203dSJoe Perches void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *); 79817926a79SDavid Howells 79917926a79SDavid Howells /* 8000d81a51aSDavid Howells * insecure.c 80117926a79SDavid Howells */ 8020d81a51aSDavid Howells extern const struct rxrpc_security rxrpc_no_security; 80317926a79SDavid Howells 80417926a79SDavid Howells /* 8050d81a51aSDavid Howells * key.c 80617926a79SDavid Howells */ 80717926a79SDavid Howells extern struct key_type key_type_rxrpc; 80817926a79SDavid Howells extern struct key_type key_type_rxrpc_s; 80917926a79SDavid Howells 810c1b1203dSJoe Perches int rxrpc_request_key(struct rxrpc_sock *, char __user *, int); 811c1b1203dSJoe Perches int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int); 812c1b1203dSJoe Perches int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time_t, 813c1b1203dSJoe Perches u32); 81417926a79SDavid Howells 81517926a79SDavid Howells /* 81687563616SDavid Howells * local_event.c 81787563616SDavid Howells */ 8184f95dd78SDavid Howells extern void rxrpc_process_local_events(struct rxrpc_local *); 81987563616SDavid Howells 82087563616SDavid Howells /* 8210d81a51aSDavid Howells * local_object.c 82217926a79SDavid Howells */ 8234f95dd78SDavid Howells struct rxrpc_local *rxrpc_lookup_local(const struct sockaddr_rxrpc *); 8244f95dd78SDavid Howells void __rxrpc_put_local(struct rxrpc_local *); 8250d81a51aSDavid Howells void __exit rxrpc_destroy_all_locals(void); 826e0e4d82fSDavid Howells 8274f95dd78SDavid Howells static inline void rxrpc_get_local(struct rxrpc_local *local) 8284f95dd78SDavid Howells { 8294f95dd78SDavid Howells atomic_inc(&local->usage); 8304f95dd78SDavid Howells } 8314f95dd78SDavid Howells 8324f95dd78SDavid Howells static inline 8334f95dd78SDavid Howells struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local) 8344f95dd78SDavid Howells { 8354f95dd78SDavid Howells return atomic_inc_not_zero(&local->usage) ? local : NULL; 8364f95dd78SDavid Howells } 8374f95dd78SDavid Howells 8384f95dd78SDavid Howells static inline void rxrpc_put_local(struct rxrpc_local *local) 8394f95dd78SDavid Howells { 8405627cc8bSDavid Howells if (local && atomic_dec_and_test(&local->usage)) 8414f95dd78SDavid Howells __rxrpc_put_local(local); 8424f95dd78SDavid Howells } 8434f95dd78SDavid Howells 8445acbee46SDavid Howells static inline void rxrpc_queue_local(struct rxrpc_local *local) 8455acbee46SDavid Howells { 8465acbee46SDavid Howells rxrpc_queue_work(&local->processor); 8475acbee46SDavid Howells } 8485acbee46SDavid Howells 849e0e4d82fSDavid Howells /* 8508e688d9cSDavid Howells * misc.c 8518e688d9cSDavid Howells */ 8520e119b41SDavid Howells extern unsigned int rxrpc_max_backlog __read_mostly; 8538e688d9cSDavid Howells extern unsigned int rxrpc_requested_ack_delay; 8548e688d9cSDavid Howells extern unsigned int rxrpc_soft_ack_delay; 8558e688d9cSDavid Howells extern unsigned int rxrpc_idle_ack_delay; 8568e688d9cSDavid Howells extern unsigned int rxrpc_rx_window_size; 8578e688d9cSDavid Howells extern unsigned int rxrpc_rx_mtu; 8588e688d9cSDavid Howells extern unsigned int rxrpc_rx_jumbo_max; 8590b58b8a1SDavid Howells extern unsigned int rxrpc_resend_timeout; 8608e688d9cSDavid Howells 8615b3e87f1SDavid Howells extern const char *const rxrpc_pkts[]; 8628e688d9cSDavid Howells extern const s8 rxrpc_ack_priority[]; 8638e688d9cSDavid Howells 8648e688d9cSDavid Howells extern const char *rxrpc_acks(u8 reason); 8658e688d9cSDavid Howells 8668e688d9cSDavid Howells /* 8670d81a51aSDavid Howells * output.c 8680d81a51aSDavid Howells */ 8698d94aa38SDavid Howells int rxrpc_send_call_packet(struct rxrpc_call *, u8); 870985a5c82SDavid Howells int rxrpc_send_data_packet(struct rxrpc_connection *, struct sk_buff *); 8710d81a51aSDavid Howells 8720d81a51aSDavid Howells /* 873abe89ef0SDavid Howells * peer_event.c 8740d81a51aSDavid Howells */ 875abe89ef0SDavid Howells void rxrpc_error_report(struct sock *); 876f66d7490SDavid Howells void rxrpc_peer_error_distributor(struct work_struct *); 8770d81a51aSDavid Howells 8780d81a51aSDavid Howells /* 8790d81a51aSDavid Howells * peer_object.c 8800d81a51aSDavid Howells */ 881be6e6707SDavid Howells struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *, 882be6e6707SDavid Howells const struct sockaddr_rxrpc *); 883be6e6707SDavid Howells struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *, 884be6e6707SDavid Howells struct sockaddr_rxrpc *, gfp_t); 885be6e6707SDavid Howells struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t); 886be6e6707SDavid Howells 887df5d8bf7SDavid Howells static inline struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer) 888be6e6707SDavid Howells { 889be6e6707SDavid Howells atomic_inc(&peer->usage); 890df5d8bf7SDavid Howells return peer; 891be6e6707SDavid Howells } 892be6e6707SDavid Howells 893be6e6707SDavid Howells static inline 894be6e6707SDavid Howells struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer) 895be6e6707SDavid Howells { 896be6e6707SDavid Howells return atomic_inc_not_zero(&peer->usage) ? peer : NULL; 897be6e6707SDavid Howells } 898be6e6707SDavid Howells 899be6e6707SDavid Howells extern void __rxrpc_put_peer(struct rxrpc_peer *peer); 900be6e6707SDavid Howells static inline void rxrpc_put_peer(struct rxrpc_peer *peer) 901be6e6707SDavid Howells { 9025627cc8bSDavid Howells if (peer && atomic_dec_and_test(&peer->usage)) 903be6e6707SDavid Howells __rxrpc_put_peer(peer); 904be6e6707SDavid Howells } 9050d81a51aSDavid Howells 9060d81a51aSDavid Howells /* 9070d81a51aSDavid Howells * proc.c 9080d81a51aSDavid Howells */ 9090d81a51aSDavid Howells extern const struct file_operations rxrpc_call_seq_fops; 9100d81a51aSDavid Howells extern const struct file_operations rxrpc_connection_seq_fops; 9110d81a51aSDavid Howells 9120d81a51aSDavid Howells /* 9130d81a51aSDavid Howells * recvmsg.c 9140d81a51aSDavid Howells */ 9150d81a51aSDavid Howells int rxrpc_recvmsg(struct socket *, struct msghdr *, size_t, int); 9160d81a51aSDavid Howells 9170d81a51aSDavid Howells /* 918648af7fcSDavid Howells * rxkad.c 919648af7fcSDavid Howells */ 920648af7fcSDavid Howells #ifdef CONFIG_RXKAD 921648af7fcSDavid Howells extern const struct rxrpc_security rxkad; 922648af7fcSDavid Howells #endif 923648af7fcSDavid Howells 924648af7fcSDavid Howells /* 9250d81a51aSDavid Howells * security.c 9260d81a51aSDavid Howells */ 9270d81a51aSDavid Howells int __init rxrpc_init_security(void); 9280d81a51aSDavid Howells void rxrpc_exit_security(void); 9290d81a51aSDavid Howells int rxrpc_init_client_conn_security(struct rxrpc_connection *); 9300d81a51aSDavid Howells int rxrpc_init_server_conn_security(struct rxrpc_connection *); 9310d81a51aSDavid Howells 9320d81a51aSDavid Howells /* 9330b58b8a1SDavid Howells * sendmsg.c 9340b58b8a1SDavid Howells */ 9350b58b8a1SDavid Howells int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t); 9360b58b8a1SDavid Howells 9370b58b8a1SDavid Howells /* 9380d81a51aSDavid Howells * skbuff.c 9390d81a51aSDavid Howells */ 940d001648eSDavid Howells void rxrpc_kernel_data_consumed(struct rxrpc_call *, struct sk_buff *); 9410d81a51aSDavid Howells void rxrpc_packet_destructor(struct sk_buff *); 942df844fd4SDavid Howells void rxrpc_new_skb(struct sk_buff *); 943df844fd4SDavid Howells void rxrpc_see_skb(struct sk_buff *); 944df844fd4SDavid Howells void rxrpc_get_skb(struct sk_buff *); 945df844fd4SDavid Howells void rxrpc_free_skb(struct sk_buff *); 946df844fd4SDavid Howells void rxrpc_purge_queue(struct sk_buff_head *); 9470d81a51aSDavid Howells 9480d81a51aSDavid Howells /* 9495873c083SDavid Howells * sysctl.c 9505873c083SDavid Howells */ 9515873c083SDavid Howells #ifdef CONFIG_SYSCTL 9525873c083SDavid Howells extern int __init rxrpc_sysctl_init(void); 9535873c083SDavid Howells extern void rxrpc_sysctl_exit(void); 9545873c083SDavid Howells #else 9555873c083SDavid Howells static inline int __init rxrpc_sysctl_init(void) { return 0; } 9565873c083SDavid Howells static inline void rxrpc_sysctl_exit(void) {} 9575873c083SDavid Howells #endif 9585873c083SDavid Howells 9595873c083SDavid Howells /* 960be6e6707SDavid Howells * utils.c 961be6e6707SDavid Howells */ 962d991b4a3SDavid Howells int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *); 963be6e6707SDavid Howells 964be6e6707SDavid Howells /* 96517926a79SDavid Howells * debug tracing 96617926a79SDavid Howells */ 96795c96174SEric Dumazet extern unsigned int rxrpc_debug; 96817926a79SDavid Howells 96917926a79SDavid Howells #define dbgprintk(FMT,...) \ 9709f389f4bSSven Schnelle printk("[%-6.6s] "FMT"\n", current->comm ,##__VA_ARGS__) 97117926a79SDavid Howells 9720dc47877SHarvey Harrison #define kenter(FMT,...) dbgprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__) 9730dc47877SHarvey Harrison #define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) 97417926a79SDavid Howells #define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__) 97517926a79SDavid Howells #define kproto(FMT,...) dbgprintk("### "FMT ,##__VA_ARGS__) 97617926a79SDavid Howells #define knet(FMT,...) dbgprintk("@@@ "FMT ,##__VA_ARGS__) 97717926a79SDavid Howells 97817926a79SDavid Howells 97917926a79SDavid Howells #if defined(__KDEBUG) 98017926a79SDavid Howells #define _enter(FMT,...) kenter(FMT,##__VA_ARGS__) 98117926a79SDavid Howells #define _leave(FMT,...) kleave(FMT,##__VA_ARGS__) 98217926a79SDavid Howells #define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__) 98317926a79SDavid Howells #define _proto(FMT,...) kproto(FMT,##__VA_ARGS__) 98417926a79SDavid Howells #define _net(FMT,...) knet(FMT,##__VA_ARGS__) 98517926a79SDavid Howells 98617926a79SDavid Howells #elif defined(CONFIG_AF_RXRPC_DEBUG) 98717926a79SDavid Howells #define RXRPC_DEBUG_KENTER 0x01 98817926a79SDavid Howells #define RXRPC_DEBUG_KLEAVE 0x02 98917926a79SDavid Howells #define RXRPC_DEBUG_KDEBUG 0x04 99017926a79SDavid Howells #define RXRPC_DEBUG_KPROTO 0x08 99117926a79SDavid Howells #define RXRPC_DEBUG_KNET 0x10 99217926a79SDavid Howells 99317926a79SDavid Howells #define _enter(FMT,...) \ 99417926a79SDavid Howells do { \ 99517926a79SDavid Howells if (unlikely(rxrpc_debug & RXRPC_DEBUG_KENTER)) \ 99617926a79SDavid Howells kenter(FMT,##__VA_ARGS__); \ 99717926a79SDavid Howells } while (0) 99817926a79SDavid Howells 99917926a79SDavid Howells #define _leave(FMT,...) \ 100017926a79SDavid Howells do { \ 100117926a79SDavid Howells if (unlikely(rxrpc_debug & RXRPC_DEBUG_KLEAVE)) \ 100217926a79SDavid Howells kleave(FMT,##__VA_ARGS__); \ 100317926a79SDavid Howells } while (0) 100417926a79SDavid Howells 100517926a79SDavid Howells #define _debug(FMT,...) \ 100617926a79SDavid Howells do { \ 100717926a79SDavid Howells if (unlikely(rxrpc_debug & RXRPC_DEBUG_KDEBUG)) \ 100817926a79SDavid Howells kdebug(FMT,##__VA_ARGS__); \ 100917926a79SDavid Howells } while (0) 101017926a79SDavid Howells 101117926a79SDavid Howells #define _proto(FMT,...) \ 101217926a79SDavid Howells do { \ 101317926a79SDavid Howells if (unlikely(rxrpc_debug & RXRPC_DEBUG_KPROTO)) \ 101417926a79SDavid Howells kproto(FMT,##__VA_ARGS__); \ 101517926a79SDavid Howells } while (0) 101617926a79SDavid Howells 101717926a79SDavid Howells #define _net(FMT,...) \ 101817926a79SDavid Howells do { \ 101917926a79SDavid Howells if (unlikely(rxrpc_debug & RXRPC_DEBUG_KNET)) \ 102017926a79SDavid Howells knet(FMT,##__VA_ARGS__); \ 102117926a79SDavid Howells } while (0) 102217926a79SDavid Howells 102317926a79SDavid Howells #else 102412fdff3fSDavid Howells #define _enter(FMT,...) no_printk("==> %s("FMT")",__func__ ,##__VA_ARGS__) 102512fdff3fSDavid Howells #define _leave(FMT,...) no_printk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) 102612fdff3fSDavid Howells #define _debug(FMT,...) no_printk(" "FMT ,##__VA_ARGS__) 102712fdff3fSDavid Howells #define _proto(FMT,...) no_printk("### "FMT ,##__VA_ARGS__) 102812fdff3fSDavid Howells #define _net(FMT,...) no_printk("@@@ "FMT ,##__VA_ARGS__) 102917926a79SDavid Howells #endif 103017926a79SDavid Howells 103117926a79SDavid Howells /* 103217926a79SDavid Howells * debug assertion checking 103317926a79SDavid Howells */ 103417926a79SDavid Howells #if 1 // defined(__KDEBUGALL) 103517926a79SDavid Howells 103617926a79SDavid Howells #define ASSERT(X) \ 103717926a79SDavid Howells do { \ 103817926a79SDavid Howells if (unlikely(!(X))) { \ 10399b6d5398SJoe Perches pr_err("Assertion failed\n"); \ 104017926a79SDavid Howells BUG(); \ 104117926a79SDavid Howells } \ 104217926a79SDavid Howells } while (0) 104317926a79SDavid Howells 104417926a79SDavid Howells #define ASSERTCMP(X, OP, Y) \ 104517926a79SDavid Howells do { \ 1046cf13258fSDavid Howells __typeof__(X) _x = (X); \ 1047cf13258fSDavid Howells __typeof__(Y) _y = (__typeof__(X))(Y); \ 10489b6d5398SJoe Perches if (unlikely(!(_x OP _y))) { \ 10499b6d5398SJoe Perches pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \ 1050cf13258fSDavid Howells (unsigned long)_x, (unsigned long)_x, #OP, \ 1051cf13258fSDavid Howells (unsigned long)_y, (unsigned long)_y); \ 105217926a79SDavid Howells BUG(); \ 105317926a79SDavid Howells } \ 105417926a79SDavid Howells } while (0) 105517926a79SDavid Howells 105617926a79SDavid Howells #define ASSERTIF(C, X) \ 105717926a79SDavid Howells do { \ 105817926a79SDavid Howells if (unlikely((C) && !(X))) { \ 10599b6d5398SJoe Perches pr_err("Assertion failed\n"); \ 106017926a79SDavid Howells BUG(); \ 106117926a79SDavid Howells } \ 106217926a79SDavid Howells } while (0) 106317926a79SDavid Howells 106417926a79SDavid Howells #define ASSERTIFCMP(C, X, OP, Y) \ 106517926a79SDavid Howells do { \ 1066cf13258fSDavid Howells __typeof__(X) _x = (X); \ 1067cf13258fSDavid Howells __typeof__(Y) _y = (__typeof__(X))(Y); \ 10689b6d5398SJoe Perches if (unlikely((C) && !(_x OP _y))) { \ 10699b6d5398SJoe Perches pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \ 1070cf13258fSDavid Howells (unsigned long)_x, (unsigned long)_x, #OP, \ 1071cf13258fSDavid Howells (unsigned long)_y, (unsigned long)_y); \ 107217926a79SDavid Howells BUG(); \ 107317926a79SDavid Howells } \ 107417926a79SDavid Howells } while (0) 107517926a79SDavid Howells 107617926a79SDavid Howells #else 107717926a79SDavid Howells 107817926a79SDavid Howells #define ASSERT(X) \ 107917926a79SDavid Howells do { \ 108017926a79SDavid Howells } while (0) 108117926a79SDavid Howells 108217926a79SDavid Howells #define ASSERTCMP(X, OP, Y) \ 108317926a79SDavid Howells do { \ 108417926a79SDavid Howells } while (0) 108517926a79SDavid Howells 108617926a79SDavid Howells #define ASSERTIF(C, X) \ 108717926a79SDavid Howells do { \ 108817926a79SDavid Howells } while (0) 108917926a79SDavid Howells 109017926a79SDavid Howells #define ASSERTIFCMP(C, X, OP, Y) \ 109117926a79SDavid Howells do { \ 109217926a79SDavid Howells } while (0) 109317926a79SDavid Howells 109417926a79SDavid Howells #endif /* __KDEBUGALL */ 1095