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      1 /*
      2  * There are two expected ways of including this header.
      3  *
      4  * 1) The "default" case (expected from tools etc).
      5  *
      6  * Simply #include <public/errno.h>
      7  *
      8  * In this circumstance, normal header guards apply and the includer shall get
      9  * an enumeration in the XEN_xxx namespace, appropriate for C or assembly.
     10  *
     11  * 2) The special case where the includer provides a XEN_ERRNO() in scope.
     12  *
     13  * In this case, no inclusion guards apply and the caller is responsible for
     14  * their XEN_ERRNO() being appropriate in the included context.  The header
     15  * will unilaterally #undef XEN_ERRNO().
     16  */
     17 
     18 #ifndef XEN_ERRNO
     19 
     20 /*
     21  * Includer has not provided a custom XEN_ERRNO().  Arrange for normal header
     22  * guards, an automatic enum (for C code) and constants in the XEN_xxx
     23  * namespace.
     24  */
     25 #ifndef __XEN_PUBLIC_ERRNO_H__
     26 #define __XEN_PUBLIC_ERRNO_H__
     27 
     28 #define XEN_ERRNO_DEFAULT_INCLUDE
     29 
     30 #ifndef __ASSEMBLY__
     31 
     32 #define XEN_ERRNO(name, value) XEN_##name = value,
     33 enum xen_errno {
     34 
     35 #elif __XEN_INTERFACE_VERSION__ < 0x00040700
     36 
     37 #define XEN_ERRNO(name, value) .equ XEN_##name, value
     38 
     39 #endif /* __ASSEMBLY__ */
     40 
     41 #endif /* __XEN_PUBLIC_ERRNO_H__ */
     42 #endif /* !XEN_ERRNO */
     43 
     44 /* ` enum neg_errnoval {  [ -Efoo for each Efoo in the list below ]  } */
     45 /* ` enum errnoval { */
     46 
     47 #ifdef XEN_ERRNO
     48 
     49 /*
     50  * Values originating from x86 Linux. Please consider using respective
     51  * values when adding new definitions here.
     52  *
     53  * The set of identifiers to be added here shouldn't extend beyond what
     54  * POSIX mandates (see e.g.
     55  * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html)
     56  * with the exception that we support some optional (XSR) values
     57  * specified there (but no new ones should be added).
     58  */
     59 
     60 XEN_ERRNO(EPERM,	 1)	/* Operation not permitted */
     61 XEN_ERRNO(ENOENT,	 2)	/* No such file or directory */
     62 XEN_ERRNO(ESRCH,	 3)	/* No such process */
     63 #ifdef __XEN__ /* Internal only, should never be exposed to the guest. */
     64 XEN_ERRNO(EINTR,	 4)	/* Interrupted system call */
     65 #endif
     66 XEN_ERRNO(EIO,		 5)	/* I/O error */
     67 XEN_ERRNO(ENXIO,	 6)	/* No such device or address */
     68 XEN_ERRNO(E2BIG,	 7)	/* Arg list too long */
     69 XEN_ERRNO(ENOEXEC,	 8)	/* Exec format error */
     70 XEN_ERRNO(EBADF,	 9)	/* Bad file number */
     71 XEN_ERRNO(ECHILD,	10)	/* No child processes */
     72 XEN_ERRNO(EAGAIN,	11)	/* Try again */
     73 XEN_ERRNO(EWOULDBLOCK,	11)	/* Operation would block.  Aliases EAGAIN */
     74 XEN_ERRNO(ENOMEM,	12)	/* Out of memory */
     75 XEN_ERRNO(EACCES,	13)	/* Permission denied */
     76 XEN_ERRNO(EFAULT,	14)	/* Bad address */
     77 XEN_ERRNO(EBUSY,	16)	/* Device or resource busy */
     78 XEN_ERRNO(EEXIST,	17)	/* File exists */
     79 XEN_ERRNO(EXDEV,	18)	/* Cross-device link */
     80 XEN_ERRNO(ENODEV,	19)	/* No such device */
     81 XEN_ERRNO(EISDIR,	21)	/* Is a directory */
     82 XEN_ERRNO(EINVAL,	22)	/* Invalid argument */
     83 XEN_ERRNO(ENFILE,	23)	/* File table overflow */
     84 XEN_ERRNO(EMFILE,	24)	/* Too many open files */
     85 XEN_ERRNO(ENOSPC,	28)	/* No space left on device */
     86 XEN_ERRNO(EROFS,	30)	/* Read-only file system */
     87 XEN_ERRNO(EMLINK,	31)	/* Too many links */
     88 XEN_ERRNO(EDOM,		33)	/* Math argument out of domain of func */
     89 XEN_ERRNO(ERANGE,	34)	/* Math result not representable */
     90 XEN_ERRNO(EDEADLK,	35)	/* Resource deadlock would occur */
     91 XEN_ERRNO(EDEADLOCK,	35)	/* Resource deadlock would occur. Aliases EDEADLK */
     92 XEN_ERRNO(ENAMETOOLONG,	36)	/* File name too long */
     93 XEN_ERRNO(ENOLCK,	37)	/* No record locks available */
     94 XEN_ERRNO(ENOSYS,	38)	/* Function not implemented */
     95 XEN_ERRNO(ENOTEMPTY,	39)	/* Directory not empty */
     96 XEN_ERRNO(ENODATA,	61)	/* No data available */
     97 XEN_ERRNO(ETIME,	62)	/* Timer expired */
     98 XEN_ERRNO(EBADMSG,	74)	/* Not a data message */
     99 XEN_ERRNO(EOVERFLOW,	75)	/* Value too large for defined data type */
    100 XEN_ERRNO(EILSEQ,	84)	/* Illegal byte sequence */
    101 #ifdef __XEN__ /* Internal only, should never be exposed to the guest. */
    102 XEN_ERRNO(ERESTART,	85)	/* Interrupted system call should be restarted */
    103 #endif
    104 XEN_ERRNO(ENOTSOCK,	88)	/* Socket operation on non-socket */
    105 XEN_ERRNO(EOPNOTSUPP,	95)	/* Operation not supported on transport endpoint */
    106 XEN_ERRNO(EADDRINUSE,	98)	/* Address already in use */
    107 XEN_ERRNO(EADDRNOTAVAIL, 99)	/* Cannot assign requested address */
    108 XEN_ERRNO(ENOBUFS,	105)	/* No buffer space available */
    109 XEN_ERRNO(EISCONN,	106)	/* Transport endpoint is already connected */
    110 XEN_ERRNO(ENOTCONN,	107)	/* Transport endpoint is not connected */
    111 XEN_ERRNO(ETIMEDOUT,	110)	/* Connection timed out */
    112 
    113 #undef XEN_ERRNO
    114 #endif /* XEN_ERRNO */
    115 /* ` } */
    116 
    117 /* Clean up from a default include.  Close the enum (for C). */
    118 #ifdef XEN_ERRNO_DEFAULT_INCLUDE
    119 #undef XEN_ERRNO_DEFAULT_INCLUDE
    120 #ifndef __ASSEMBLY__
    121 };
    122 #endif
    123 
    124 #endif /* XEN_ERRNO_DEFAULT_INCLUDE */
    125