| 1 | /* |
| 2 | * 9p |
| 3 | * |
| 4 | * Copyright IBM, Corp. 2011 |
| 5 | * |
| 6 | * Authors: |
| 7 | * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 10 | * the COPYING file in the top-level directory. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #ifndef QEMU_9P_SYNTH_H |
| 15 | #define QEMU_9P_SYNTH_H |
| 16 | |
| 17 | typedef struct V9fsSynthNode V9fsSynthNode; |
| 18 | typedef ssize_t (*v9fs_synth_read)(void *buf, int len, off_t offset, |
| 19 | void *arg); |
| 20 | typedef ssize_t (*v9fs_synth_write)(void *buf, int len, off_t offset, |
| 21 | void *arg); |
| 22 | typedef struct V9fsSynthNodeAttr { |
| 23 | int mode; |
| 24 | int inode; |
| 25 | int nlink; |
| 26 | v9fs_synth_read read; |
| 27 | v9fs_synth_write write; |
| 28 | } V9fsSynthNodeAttr; |
| 29 | |
| 30 | struct V9fsSynthNode { |
| 31 | QLIST_HEAD(, V9fsSynthNode) child; |
| 32 | QLIST_ENTRY(V9fsSynthNode) sibling; |
| 33 | char name[NAME_MAX]; |
| 34 | V9fsSynthNodeAttr *attr; |
| 35 | V9fsSynthNodeAttr actual_attr; |
| 36 | void *private; |
| 37 | int open_count; |
| 38 | }; |
| 39 | |
| 40 | typedef struct V9fsSynthOpenState { |
| 41 | off_t offset; |
| 42 | V9fsSynthNode *node; |
| 43 | struct dirent dent; |
| 44 | /* |
| 45 | * Ensure there is enough space for 'dent' above, some systems have a |
| 46 | * d_name size of just 1, which would cause a buffer overrun. |
| 47 | */ |
| 48 | char dent_trailing_space[NAME_MAX]; |
| 49 | } V9fsSynthOpenState; |
| 50 | |
| 51 | int qemu_v9fs_synth_mkdir(V9fsSynthNode *parent, int mode, |
| 52 | const char *name, V9fsSynthNode **result); |
| 53 | int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode, |
| 54 | const char *name, v9fs_synth_read read, |
| 55 | v9fs_synth_write write, void *arg); |
| 56 | |
| 57 | /* qtest stuff */ |
| 58 | |
| 59 | #define QTEST_V9FS_SYNTH_WALK_FILE "WALK%d" |
| 60 | #define QTEST_V9FS_SYNTH_LOPEN_FILE "LOPEN" |
| 61 | #define QTEST_V9FS_SYNTH_WRITE_FILE "WRITE" |
| 62 | |
| 63 | /* for READDIR test */ |
| 64 | #define QTEST_V9FS_SYNTH_READDIR_DIR "ReadDirDir" |
| 65 | #define QTEST_V9FS_SYNTH_READDIR_FILE "ReadDirFile%d" |
| 66 | #define QTEST_V9FS_SYNTH_READDIR_NFILES 100 |
| 67 | |
| 68 | /* Any write to the "FLUSH" file is handled one byte at a time by the |
| 69 | * backend. If the byte is zero, the backend returns success (ie, 1), |
| 70 | * otherwise it forces the server to try again forever. Thus allowing |
| 71 | * the client to cancel the request. |
| 72 | */ |
| 73 | #define QTEST_V9FS_SYNTH_FLUSH_FILE "FLUSH" |
| 74 | |
| 75 | #endif |