projects / binject.git / blame
| Commit | Line | Data |
|---|---|---|
| 4f28f523 JA |
1 | #ifndef BINJECT_H |
| 2 | #define BINJECT_H | |
| 3 | ||
| 4 | #define BINJECT_MAGIC 0x89 | |
| 5 | #define BINJECT_VER 0x01 | |
| 6 | #define BINJECT_MAGIC_SHIFT 8 | |
| 7 | #define BINJECT_VER_MASK ((1 << BINJECT_MAGIC_SHIFT) - 1) | |
| 8 | ||
| 9 | struct b_user_cmd { | |
| 9601c17f JA |
10 | __u16 magic; /* INPUT */ |
| 11 | __u16 type; /* INPUT */ | |
| 12 | __u32 error; /* OUTPUT */ | |
| 13 | __u32 flags; /* INPUT */ | |
| 14 | __u32 len; /* INPUT */ | |
| 15 | __u64 offset; /* INPUT */ | |
| 16 | __u64 buf; /* INPUT */ | |
| 17 | __u64 usr_ptr; /* PASSED THROUGH */ | |
| 18 | __u64 nsec; /* OUTPUT */ | |
| 4f28f523 JA |
19 | }; |
| 20 | ||
| 21 | struct b_ioctl_cmd { | |
| 22 | int fd; | |
| 23 | int minor; | |
| 24 | }; | |
| 25 | ||
| e0658c5c JA |
26 | #define BINJECT_IOCTL_CHR 'J' |
| 27 | #define B_IOCTL_ADD _IOWR(BINJECT_IOCTL_CHR, 1, struct b_ioctl_cmd) | |
| 28 | #define B_IOCTL_DEL _IOWR(BINJECT_IOCTL_CHR, 2, struct b_ioctl_cmd) | |
| 29 | ||
| 4f28f523 JA |
30 | enum { |
| 31 | B_TYPE_READ = 0, | |
| 32 | B_TYPE_WRITE, | |
| 33 | B_TYPE_DISCARD, | |
| 34 | B_TYPE_READVOID, | |
| 35 | B_TYPE_WRITEZERO, | |
| 41c1852f JA |
36 | B_TYPE_READBARRIER, |
| 37 | B_TYPE_WRITEBARRIER, | |
| 4f28f523 JA |
38 | B_TYPE_NR |
| 39 | }; | |
| 40 | ||
| 41 | enum { | |
| 42 | __B_FLAG_SYNC = 0, | |
| 43 | __B_FLAG_UNPLUG, | |
| 44 | __B_FLAG_NOIDLE, | |
| 45 | __B_FLAG_BARRIER, | |
| 46 | __B_FLAG_META, | |
| 47 | __B_FLAG_RAHEAD, | |
| 48 | __B_FLAG_FAILFAST_DEV, | |
| 49 | __B_FLAG_FAILFAST_TRANSPORT, | |
| 50 | __B_FLAG_FAILFAST_DRIVER, | |
| 51 | __B_FLAG_NR, | |
| 52 | ||
| 53 | B_FLAG_SYNC = 1 << __B_FLAG_SYNC, | |
| 54 | B_FLAG_UNPLUG = 1 << __B_FLAG_UNPLUG, | |
| 55 | B_FLAG_NOIDLE = 1 << __B_FLAG_NOIDLE, | |
| 56 | B_FLAG_BARRIER = 1 << __B_FLAG_BARRIER, | |
| 57 | B_FLAG_META = 1 << __B_FLAG_META, | |
| 58 | B_FLAG_RAHEAD = 1 << __B_FLAG_RAHEAD, | |
| 59 | B_FLAG_FAILFAST_DEV = 1 << __B_FLAG_FAILFAST_DEV, | |
| 60 | B_FLAG_FAILFAST_TRANSPORT = 1 << __B_FLAG_FAILFAST_TRANSPORT, | |
| 61 | B_FLAG_FAILFAST_DRIVER = 1 << __B_FLAG_FAILFAST_DRIVER, | |
| 62 | }; | |
| 63 | ||
| 64 | static inline void binject_buc_set_magic(struct b_user_cmd *buc) | |
| 65 | { | |
| 66 | buc->magic = (BINJECT_MAGIC << BINJECT_MAGIC_SHIFT) | BINJECT_VER; | |
| 67 | } | |
| 68 | ||
| 69 | static inline int binject_buc_check_magic(struct b_user_cmd *buc) | |
| 70 | { | |
| 71 | return ((buc->magic & BINJECT_VER_MASK) == BINJECT_VER) && | |
| 72 | ((buc->magic >> BINJECT_MAGIC_SHIFT) == BINJECT_MAGIC); | |
| 73 | } | |
| 74 | ||
| 75 | #endif |