Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 1 | /* |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 2 | * FUSE: Filesystem in Userspace |
| 3 | * Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu> |
| 4 | * |
| 5 | * This program can be distributed under the terms of the GNU LGPLv2. |
| 6 | * See the file COPYING.LIB |
| 7 | */ |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 8 | |
Dr. David Alan Gilbert | d14bf58 | 2018-06-07 20:11:14 +0100 | [diff] [blame] | 9 | #ifndef FUSE_I_H |
| 10 | #define FUSE_I_H |
| 11 | |
Dr. David Alan Gilbert | 09863eb | 2019-02-08 11:48:42 +0000 | [diff] [blame] | 12 | #define FUSE_USE_VERSION 31 |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 13 | #include "fuse_lowlevel.h" |
| 14 | |
Dr. David Alan Gilbert | f6f3573 | 2018-06-08 19:59:20 +0100 | [diff] [blame] | 15 | struct fv_VuDev; |
Dr. David Alan Gilbert | b509e12 | 2018-06-14 19:52:23 +0100 | [diff] [blame] | 16 | struct fv_QueueInfo; |
Dr. David Alan Gilbert | f6f3573 | 2018-06-08 19:59:20 +0100 | [diff] [blame] | 17 | |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 18 | struct fuse_req { |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 19 | struct fuse_session *se; |
| 20 | uint64_t unique; |
| 21 | int ctr; |
| 22 | pthread_mutex_t lock; |
| 23 | struct fuse_ctx ctx; |
| 24 | struct fuse_chan *ch; |
| 25 | int interrupted; |
| 26 | unsigned int ioctl_64bit:1; |
| 27 | union { |
| 28 | struct { |
| 29 | uint64_t unique; |
| 30 | } i; |
| 31 | struct { |
| 32 | fuse_interrupt_func_t func; |
| 33 | void *data; |
| 34 | } ni; |
| 35 | } u; |
| 36 | struct fuse_req *next; |
| 37 | struct fuse_req *prev; |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 38 | }; |
| 39 | |
| 40 | struct fuse_notify_req { |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 41 | uint64_t unique; |
| 42 | void (*reply)(struct fuse_notify_req *, fuse_req_t, fuse_ino_t, |
| 43 | const void *, const struct fuse_buf *); |
| 44 | struct fuse_notify_req *next; |
| 45 | struct fuse_notify_req *prev; |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 46 | }; |
| 47 | |
| 48 | struct fuse_session { |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 49 | char *mountpoint; |
| 50 | volatile int exited; |
| 51 | int fd; |
| 52 | int debug; |
| 53 | int deny_others; |
| 54 | struct fuse_lowlevel_ops op; |
| 55 | int got_init; |
| 56 | struct cuse_data *cuse_data; |
| 57 | void *userdata; |
| 58 | uid_t owner; |
| 59 | struct fuse_conn_info conn; |
| 60 | struct fuse_req list; |
| 61 | struct fuse_req interrupts; |
| 62 | pthread_mutex_t lock; |
Stefan Hajnoczi | cdc497c | 2019-08-01 17:54:07 +0100 | [diff] [blame] | 63 | pthread_rwlock_t init_rwlock; |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 64 | int got_destroy; |
| 65 | int broken_splice_nonblock; |
| 66 | uint64_t notify_ctr; |
| 67 | struct fuse_notify_req notify_list; |
| 68 | size_t bufsize; |
| 69 | int error; |
Dr. David Alan Gilbert | 205de00 | 2018-06-07 17:22:33 +0100 | [diff] [blame] | 70 | char *vu_socket_path; |
Stefan Hajnoczi | cee8e35 | 2019-06-25 17:18:00 +0100 | [diff] [blame] | 71 | int vu_listen_fd; |
Dr. David Alan Gilbert | f6f3573 | 2018-06-08 19:59:20 +0100 | [diff] [blame] | 72 | int vu_socketfd; |
| 73 | struct fv_VuDev *virtio_dev; |
Stefan Hajnoczi | 951b312 | 2019-08-01 17:54:09 +0100 | [diff] [blame] | 74 | int thread_pool_size; |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 75 | }; |
| 76 | |
| 77 | struct fuse_chan { |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 78 | pthread_mutex_t lock; |
| 79 | int ctr; |
| 80 | int fd; |
Dr. David Alan Gilbert | b509e12 | 2018-06-14 19:52:23 +0100 | [diff] [blame] | 81 | struct fv_QueueInfo *qi; |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 82 | }; |
| 83 | |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 84 | int fuse_send_reply_iov_nofree(fuse_req_t req, int error, struct iovec *iov, |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 85 | int count); |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 86 | void fuse_free_req(fuse_req_t req); |
| 87 | |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 88 | void fuse_session_process_buf_int(struct fuse_session *se, |
Dr. David Alan Gilbert | 469f9d2 | 2019-01-04 18:23:00 +0000 | [diff] [blame] | 89 | struct fuse_bufvec *bufv, |
Dr. David Alan Gilbert | 7387863 | 2019-12-09 19:53:47 +0000 | [diff] [blame] | 90 | struct fuse_chan *ch); |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 91 | |
Dr. David Alan Gilbert | ee46c78 | 2019-11-28 12:22:49 +0000 | [diff] [blame] | 92 | |
| 93 | #define FUSE_MAX_MAX_PAGES 256 |
| 94 | #define FUSE_DEFAULT_MAX_PAGES_PER_REQ 32 |
| 95 | |
| 96 | /* room needed in buffer to accommodate header */ |
| 97 | #define FUSE_BUFFER_HEADER_SIZE 0x1000 |
Dr. David Alan Gilbert | d14bf58 | 2018-06-07 20:11:14 +0100 | [diff] [blame] | 98 | |
| 99 | #endif |