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 } V9fsSynthOpenState; 45 46 int qemu_v9fs_synth_mkdir(V9fsSynthNode *parent, int mode, 47 const char *name, V9fsSynthNode **result); 48 int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode, 49 const char *name, v9fs_synth_read read, 50 v9fs_synth_write write, void *arg); 51 52 /* qtest stuff */ 53 54 #define QTEST_V9FS_SYNTH_WALK_FILE "WALK%d" 55 #define QTEST_V9FS_SYNTH_LOPEN_FILE "LOPEN" 56 #define QTEST_V9FS_SYNTH_WRITE_FILE "WRITE" 57 58 /* for READDIR test */ 59 #define QTEST_V9FS_SYNTH_READDIR_DIR "ReadDirDir" 60 #define QTEST_V9FS_SYNTH_READDIR_FILE "ReadDirFile%d" 61 #define QTEST_V9FS_SYNTH_READDIR_NFILES 100 62 63 /* Any write to the "FLUSH" file is handled one byte at a time by the 64 * backend. If the byte is zero, the backend returns success (ie, 1), 65 * otherwise it forces the server to try again forever. Thus allowing 66 * the client to cancel the request. 67 */ 68 #define QTEST_V9FS_SYNTH_FLUSH_FILE "FLUSH" 69 70 #endif 71