include/minix/vfsif.h

   1 #ifndef __MINIX_VFSIF_H
   2 #define __MINIX_VFSIF_H
   3
   4 #include <sys/types.h>
   5 #include <limits.h>
   6
   7 /* VFS/FS request fields */
   8 #define REQ_ACTIME              m9_l2
   9 #define REQ_COUNT               m9_l2
  10 #define REQ_DEV                 m9_l5
  11 #define REQ_DEV2                m9_l1
  12 #define REQ_DIR_INO             m9_l3
  13 #define REQ_FLAGS               m9_s3
  14 #define REQ_GID                 m9_s1
  15 #define REQ_GRANT               m9_l2
  16 #define REQ_GRANT2              m9_l1
  17 #define REQ_GRANT3              m9_l3
  18 #define REQ_INODE_NR            m9_l1
  19 #define REQ_MEM_SIZE            m9_l5
  20 #define REQ_MODE                m9_s3
  21 #define REQ_MODTIME             m9_l3
  22 #define REQ_NBYTES              m9_l5
  23 #define REQ_PATH_LEN            m9_s2
  24 #define REQ_PATH_SIZE           m9_l5
  25 #define REQ_REN_GRANT_NEW       m9_l1
  26 #define REQ_REN_GRANT_OLD       m9_l2
  27 #define REQ_REN_LEN_NEW         m9_s2
  28 #define REQ_REN_LEN_OLD         m9_s1
  29 #define REQ_REN_NEW_DIR         m9_l4
  30 #define REQ_REN_OLD_DIR         m9_l3
  31 #define REQ_ROOT_INO            m9_l4
  32 #define REQ_SEEK_POS_HI         m9_l3
  33 #define REQ_SEEK_POS_LO         m9_l4
  34 #define REQ_TRC_END_HI          m9_l4
  35 #define REQ_TRC_END_LO          m9_l5
  36 #define REQ_TRC_START_HI        m9_l2
  37 #define REQ_TRC_START_LO        m9_l3
  38 #define REQ_UCRED_SIZE          m9_s4
  39 #define REQ_UID                 m9_s4
  40
  41
  42 /* VFS/FS reply fields */
  43 #define RES_DEV                 m9_l4
  44 #define RES_GID                 m9_s1
  45 #define RES_INODE_NR            m9_l1
  46 #define RES_FILE_SIZE_HI        m9_l2
  47 #define RES_FILE_SIZE_LO        m9_l3
  48 #define RES_MODE                m9_s2
  49 #define RES_NBYTES              m9_l5
  50 #define RES_OFFSET              m9_s2
  51 #define RES_SEEK_POS_HI         m9_l3
  52 #define RES_SEEK_POS_LO         m9_l4
  53 #define RES_SYMLOOP             m9_s3
  54 #define RES_UID                 m9_s4
  55 #define RES_CONREQS             m9_s3
  56
  57 /* VFS/FS flags */
  58 #define REQ_RDONLY              001
  59 #define REQ_ISROOT              002
  60 #define PATH_NOFLAGS            000
  61 #define PATH_RET_SYMLINK        010     /* Return a symlink object (i.e.
  62                                          * do not continue with the contents
  63                                          * of the symlink if it is the last
  64                                          * component in a path). */
  65 #define PATH_GET_UCRED          020     /* Request provides a grant ID in m9_l1
  66                                          * and struct ucred size in m9_s4 (as
  67                                          * opposed to a REQ_UID). */
  68
  69 /* VFS/FS error messages */
  70 #define EENTERMOUNT              (-301)
  71 #define ELEAVEMOUNT              (-302)
  72 #define ESYMLINK                 (-303)
  73
  74 /* VFS/FS types */
  75
  76 /* User credential structure */
  77 typedef struct {
  78         uid_t vu_uid;
  79         gid_t vu_gid;
  80         int vu_ngroups;
  81         gid_t vu_sgroups[NGROUPS_MAX];
  82 } vfs_ucred_t;
  83
  84 #define NGROUPS_MAX_OLD         8
  85 /* User credential structure before increasing
  86  * uid_t and gid_t u8_t */
  87 typedef struct {
  88         short vu_uid;
  89         char vu_gid;
  90         int vu_ngroups;
  91         char vu_sgroups[NGROUPS_MAX_OLD];
  92 } vfs_ucred_old_t;
  93
  94 /* Request numbers */
  95 #define REQ_GETNODE     (VFS_BASE + 1)  /* Should be removed */
  96 #define REQ_PUTNODE     (VFS_BASE + 2)
  97 #define REQ_SLINK       (VFS_BASE + 3)
  98 #define REQ_FTRUNC      (VFS_BASE + 4)
  99 #define REQ_CHOWN       (VFS_BASE + 5)
 100 #define REQ_CHMOD       (VFS_BASE + 6)
 101 #define REQ_INHIBREAD   (VFS_BASE + 7)
 102 #define REQ_STAT        (VFS_BASE + 8)
 103 #define REQ_UTIME       (VFS_BASE + 9)
 104 #define REQ_FSTATFS     (VFS_BASE + 10)
 105 #define REQ_BREAD       (VFS_BASE + 11)
 106 #define REQ_BWRITE      (VFS_BASE + 12)
 107 #define REQ_UNLINK      (VFS_BASE + 13)
 108 #define REQ_RMDIR       (VFS_BASE + 14)
 109 #define REQ_UNMOUNT     (VFS_BASE + 15)
 110 #define REQ_SYNC        (VFS_BASE + 16)
 111 #define REQ_NEW_DRIVER  (VFS_BASE + 17)
 112 #define REQ_FLUSH       (VFS_BASE + 18)
 113 #define REQ_READ        (VFS_BASE + 19)
 114 #define REQ_WRITE       (VFS_BASE + 20)
 115 #define REQ_MKNOD       (VFS_BASE + 21)
 116 #define REQ_MKDIR       (VFS_BASE + 22)
 117 #define REQ_CREATE      (VFS_BASE + 23)
 118 #define REQ_LINK        (VFS_BASE + 24)
 119 #define REQ_RENAME      (VFS_BASE + 25)
 120 #define REQ_LOOKUP      (VFS_BASE + 26)
 121 #define REQ_MOUNTPOINT  (VFS_BASE + 27)
 122 #define REQ_READSUPER   (VFS_BASE + 28)
 123 #define REQ_NEWNODE     (VFS_BASE + 29)
 124 #define REQ_RDLINK      (VFS_BASE + 30)
 125 #define REQ_GETDENTS    (VFS_BASE + 31)
 126 #define REQ_STATVFS     (VFS_BASE + 32)
 127
 128 #define NREQS                       33
 129
 130 #define IS_VFS_RQ(type) (((type) & ~0xff) == VFS_BASE)
 131
 132 #define TRNS_GET_ID(t)          ((t) & 0xFFFF)
 133 #define TRNS_ADD_ID(t,id)       (((t) << 16) | ((id) & 0xFFFF))
 134 #define TRNS_DEL_ID(t)          ((short)((t) >> 16))
 135
 136 #define PFS_BASE                (VFS_BASE + 100)
 137
 138 #define PFS_REQ_CHECK_PERMS     (PFS_BASE + 1)
 139 #define PFS_REQ_VERIFY_FD       (PFS_BASE + 2)
 140 #define PFS_REQ_SET_FILP        (PFS_BASE + 3)
 141 #define PFS_REQ_COPY_FILP       (PFS_BASE + 4)
 142 #define PFS_REQ_PUT_FILP        (PFS_BASE + 5)
 143 #define PFS_REQ_CANCEL_FD       (PFS_BASE + 6)
 144
 145 #define PFS_NREQS               7
 146
 147 #define IS_PFS_VFS_RQ(type)     (type >= PFS_BASE && \
 148                                         type < (PFS_BASE + PFS_NREQS))
 149
 150 #endif
 151