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![Linus Torvalds](/assets/img/avatar_default.png)
Pull timer updates from Thomas Gleixner: "Yet another big pile of changes: - More year 2038 work from Arnd slowly reaching the point where we need to think about the syscalls themself. - A new timer function which allows to conditionally (re)arm a timer only when it's either not running or the new expiry time is sooner than the armed expiry time. This allows to use a single timer for multiple timeout requirements w/o caring about the first expiry time at the call site. - A new NMI safe accessor to clock real time for the printk timestamp work. Can be used by tracing, perf as well if required. - A large number of timer setup conversions from Kees which got collected here because either maintainers requested so or they simply got ignored. As Kees pointed out already there are a few trivial merge conflicts and some redundant commits which was unavoidable due to the size of this conversion effort. - Avoid a redundant iteration in the timer wheel softirq processing. - Provide a mechanism to treat RTC implementations depending on their hardware properties, i.e. don't inflict the write at the 0.5 seconds boundary which originates from the PC CMOS RTC to all RTCs. No functional change as drivers need to be updated separately. - The usual small updates to core code clocksource drivers. Nothing really exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits) timers: Add a function to start/reduce a timer pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday() timer: Prepare to change all DEFINE_TIMER() callbacks netfilter: ipvs: Convert timers to use timer_setup() scsi: qla2xxx: Convert timers to use timer_setup() block/aoe: discover_timer: Convert timers to use timer_setup() ide: Convert timers to use timer_setup() drbd: Convert timers to use timer_setup() mailbox: Convert timers to use timer_setup() crypto: Convert timers to use timer_setup() drivers/pcmcia: omap1: Fix error in automated timer conversion ARM: footbridge: Fix typo in timer conversion drivers/sgi-xp: Convert timers to use timer_setup() drivers/pcmcia: Convert timers to use timer_setup() drivers/memstick: Convert timers to use timer_setup() drivers/macintosh: Convert timers to use timer_setup() hwrng/xgene-rng: Convert timers to use timer_setup() auxdisplay: Convert timers to use timer_setup() sparc/led: Convert timers to use timer_setup() mips: ip22/32: Convert timers to use timer_setup() ...
174 lines
5 KiB
C
174 lines
5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* ncp_fs_sb.h
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*
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* Copyright (C) 1995, 1996 by Volker Lendecke
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*
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*/
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#ifndef _NCP_FS_SB
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#define _NCP_FS_SB
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#include <linux/types.h>
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#include <linux/ncp_mount.h>
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#include <linux/net.h>
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#include <linux/mutex.h>
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#include <linux/backing-dev.h>
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#include <linux/workqueue.h>
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#define NCP_DEFAULT_OPTIONS 0 /* 2 for packet signatures */
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struct sock;
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struct ncp_mount_data_kernel {
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unsigned long flags; /* NCP_MOUNT_* flags */
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unsigned int int_flags; /* internal flags */
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#define NCP_IMOUNT_LOGGEDIN_POSSIBLE 0x0001
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kuid_t mounted_uid; /* Who may umount() this filesystem? */
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struct pid *wdog_pid; /* Who cares for our watchdog packets? */
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unsigned int ncp_fd; /* The socket to the ncp port */
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unsigned int time_out; /* How long should I wait after
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sending a NCP request? */
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unsigned int retry_count; /* And how often should I retry? */
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unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
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kuid_t uid;
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kgid_t gid;
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umode_t file_mode;
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umode_t dir_mode;
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int info_fd;
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};
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struct ncp_server {
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struct rcu_head rcu;
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struct ncp_mount_data_kernel m; /* Nearly all of the mount data is of
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interest for us later, so we store
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it completely. */
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__u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
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struct socket *ncp_sock;/* ncp socket */
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struct socket *info_sock;
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u8 sequence;
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u8 task;
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u16 connection; /* Remote connection number */
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u8 completion; /* Status message from server */
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u8 conn_status; /* Bit 4 = 1 ==> Server going down, no
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requests allowed anymore.
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Bit 0 = 1 ==> Server is down. */
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int buffer_size; /* Negotiated bufsize */
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int reply_size; /* Size of last reply */
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int packet_size;
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unsigned char *packet; /* Here we prepare requests and
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receive replies */
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unsigned char *txbuf; /* Storage for current request */
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unsigned char *rxbuf; /* Storage for reply to current request */
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int lock; /* To prevent mismatch in protocols. */
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struct mutex mutex;
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int current_size; /* for packet preparation */
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int has_subfunction;
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int ncp_reply_size;
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int root_setuped;
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struct mutex root_setup_lock;
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/* info for packet signing */
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int sign_wanted; /* 1=Server needs signed packets */
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int sign_active; /* 0=don't do signing, 1=do */
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char sign_root[8]; /* generated from password and encr. key */
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char sign_last[16];
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/* Authentication info: NDS or BINDERY, username */
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struct {
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int auth_type;
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size_t object_name_len;
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void* object_name;
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int object_type;
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} auth;
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/* Password info */
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struct {
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size_t len;
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void* data;
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} priv;
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struct rw_semaphore auth_rwsem;
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/* nls info: codepage for volume and charset for I/O */
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struct nls_table *nls_vol;
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struct nls_table *nls_io;
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/* maximum age in jiffies */
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atomic_t dentry_ttl;
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/* miscellaneous */
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unsigned int flags;
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spinlock_t requests_lock; /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
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void (*data_ready)(struct sock* sk);
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void (*error_report)(struct sock* sk);
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void (*write_space)(struct sock* sk); /* STREAM mode only */
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struct {
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struct work_struct tq; /* STREAM/DGRAM: data/error ready */
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struct ncp_request_reply* creq; /* STREAM/DGRAM: awaiting reply from this request */
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struct mutex creq_mutex; /* DGRAM only: lock accesses to rcv.creq */
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unsigned int state; /* STREAM only: receiver state */
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struct {
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__u32 magic __packed;
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__u32 len __packed;
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__u16 type __packed;
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__u16 p1 __packed;
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__u16 p2 __packed;
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__u16 p3 __packed;
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__u16 type2 __packed;
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} buf; /* STREAM only: temporary buffer */
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unsigned char* ptr; /* STREAM only: pointer to data */
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size_t len; /* STREAM only: length of data to receive */
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} rcv;
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struct {
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struct list_head requests; /* STREAM only: queued requests */
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struct work_struct tq; /* STREAM only: transmitter ready */
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struct ncp_request_reply* creq; /* STREAM only: currently transmitted entry */
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} tx;
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struct timer_list timeout_tm; /* DGRAM only: timeout timer */
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struct work_struct timeout_tq; /* DGRAM only: associated queue, we run timers from process context */
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int timeout_last; /* DGRAM only: current timeout length */
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int timeout_retries; /* DGRAM only: retries left */
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struct {
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size_t len;
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__u8 data[128];
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} unexpected_packet;
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};
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extern void ncp_tcp_rcv_proc(struct work_struct *work);
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extern void ncp_tcp_tx_proc(struct work_struct *work);
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extern void ncpdgram_rcv_proc(struct work_struct *work);
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extern void ncpdgram_timeout_proc(struct work_struct *work);
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extern void ncpdgram_timeout_call(struct timer_list *t);
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extern void ncp_tcp_data_ready(struct sock* sk);
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extern void ncp_tcp_write_space(struct sock* sk);
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extern void ncp_tcp_error_report(struct sock* sk);
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#define NCP_FLAG_UTF8 1
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#define NCP_CLR_FLAG(server, flag) ((server)->flags &= ~(flag))
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#define NCP_SET_FLAG(server, flag) ((server)->flags |= (flag))
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#define NCP_IS_FLAG(server, flag) ((server)->flags & (flag))
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static inline int ncp_conn_valid(struct ncp_server *server)
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{
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return ((server->conn_status & 0x11) == 0);
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}
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static inline void ncp_invalidate_conn(struct ncp_server *server)
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{
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server->conn_status |= 0x01;
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}
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#endif
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