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#ifndef ERRNO_H
#define ERRNO_H
FILE_LICENCE ( GPL2_OR_LATER );
/** @file
*
* Error codes
*
* Return status codes as used within gPXE are designed to allow for
* maximum visibility into the source of an error even in an end-user
* build with no debugging. They are constructed as follows:
*
* Bits 7-0 : PXE error code
*
* This is the closest equivalent PXE error code
* (e.g. PXENV_STATUS_OUT_OF_RESOURCES), and is the only part of the
* error that will be returned via the PXE API, since PXE has
* predefined error codes.
*
* Bits 12-8 : Per-file disambiguator
*
* When the same error number can be generated from multiple points
* within a file, this field can be used to identify the unique
* instance.
*
* Bits 23-13 : File identifier
*
* This is a unique identifier for the file generating the error
* (e.g. ERRFILE_tcp for tcp.c).
*
* Bits 30-24 : POSIX error code
*
* This is the closest equivalent POSIX error code (e.g. ENOMEM).
*
* Bit 31 : Reserved
*
* Errors are usually return as negative error numbers (e.g. -EINVAL);
* bit 31 is therefore unusable.
*
*
* The convention within the code is that errors are negative and
* expressed using the POSIX error code and (optionally) a per-file
* disambiguator, e.g.
*
* return -EINVAL;
*
* or
*
* #define ETCP_BAD_CHECKSUM EUNIQ_02
* return -( EINVAL | ETCP_BAD_CHECKSUM )
*
* By various bits of preprocessor magic, the PXE error code and file
* identifier are already incorporated into the definition of the
* POSIX error code, which keeps the code relatively clean.
*
*
* Functions that wish to return failures should be declared as
* returning an integer @c rc "Return status code". A return value of
* zero indicates success, a non-zero value indicates failure. The
* return value can be passed directly to strerror() in order to
* generate a human-readable error message, e.g.
*
* if ( ( rc = some_function ( ... ) ) != 0 ) {
* DBG ( "Whatever I was trying to do failed: %s\n", strerror ( rc ) );
* return rc;
* }
*
* As illustrated in the above example, error returns should generally
* be directly propagated upward to the calling function.
*
*/
/* Get definitions for file identifiers */
#include <gpxe/errfile.h>
/* If we do not have a valid file identifier, generate a compiler
* warning upon usage of any error codes. (Don't just use a #warning,
* because some files include errno.h but don't ever actually use any
* error codes.)
*/
extern char missing_errfile_declaration[] __attribute__ (( deprecated ));
#undef ERRFILE
#define ERRFILE ( 0 * ( ( int ) missing_errfile_declaration ) )
/** Derive PXENV_STATUS code from gPXE error number */
#define PXENV_STATUS( rc ) ( (-(rc)) & 0x00ff )
/**
* @defgroup pxeerrors PXE error codes
*
* The names, meanings and values of these error codes are defined by
* the PXE specification.
*
* @{
*/
/* Generic errors */
#define PXENV_STATUS_SUCCESS 0x0000
#define PXENV_STATUS_FAILURE 0x0001
#define PXENV_STATUS_BAD_FUNC 0x0002
#define PXENV_STATUS_UNSUPPORTED 0x0003
#define PXENV_STATUS_KEEP_UNDI 0x0004
#define PXENV_STATUS_KEEP_ALL 0x0005
#define PXENV_STATUS_OUT_OF_RESOURCES 0x0006
/* ARP errors (0x0010 to 0x001f) */
#define PXENV_STATUS_ARP_TIMEOUT 0x0011
/* Base-Code state errors */
#define PXENV_STATUS_UDP_CLOSED 0x0018
#define PXENV_STATUS_UDP_OPEN 0x0019
#define PXENV_STATUS_TFTP_CLOSED 0x001a
#define PXENV_STATUS_TFTP_OPEN 0x001b
/* BIOS/system errors (0x0020 to 0x002f) */
#define PXENV_STATUS_MCOPY_PROBLEM 0x0020
#define PXENV_STATUS_BIS_INTEGRITY_FAILURE 0x0021
#define PXENV_STATUS_BIS_VALIDATE_FAILURE 0x0022
#define PXENV_STATUS_BIS_INIT_FAILURE 0x0023
#define PXENV_STATUS_BIS_SHUTDOWN_FAILURE 0x0024
#define PXENV_STATUS_BIS_GBOA_FAILURE 0x0025
#define PXENV_STATUS_BIS_FREE_FAILURE 0x0026
#define PXENV_STATUS_BIS_GSI_FAILURE 0x0027
#define PXENV_STATUS_BIS_BAD_CKSUM 0x0028
/* TFTP/MTFTP errors (0x0030 to 0x003f) */
#define PXENV_STATUS_TFTP_CANNOT_ARP_ADDRESS 0x0030
#define PXENV_STATUS_TFTP_OPEN_TIMEOUT 0x0032
#define PXENV_STATUS_TFTP_UNKNOWN_OPCODE 0x0033
#define PXENV_STATUS_TFTP_READ_TIMEOUT 0x0035
#define PXENV_STATUS_TFTP_ERROR_OPCODE 0x0036
#define PXENV_STATUS_TFTP_CANNOT_OPEN_CONNECTION 0x0038
#define PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION 0x0039
#define PXENV_STATUS_TFTP_TOO_MANY_PACKAGES 0x003a
#define PXENV_STATUS_TFTP_FILE_NOT_FOUND 0x003b
#define PXENV_STATUS_TFTP_ACCESS_VIOLATION 0x003c
#define PXENV_STATUS_TFTP_NO_MCAST_ADDRESS 0x003d
#define PXENV_STATUS_TFTP_NO_FILESIZE 0x003e
#define PXENV_STATUS_TFTP_INVALID_PACKET_SIZE 0x003f
/* Reserved errors 0x0040 to 0x004f) */
/* DHCP/BOOTP errors (0x0050 to 0x005f) */
#define PXENV_STATUS_DHCP_TIMEOUT 0x0051
#define PXENV_STATUS_DHCP_NO_IP_ADDRESS 0x0052
#define PXENV_STATUS_DHCP_NO_BOOTFILE_NAME 0x0053
#define PXENV_STATUS_DHCP_BAD_IP_ADDRESS 0x0054
/* Driver errors (0x0060 to 0x006f) */
#define PXENV_STATUS_UNDI_INVALID_FUNCTION 0x0060
#define PXENV_STATUS_UNDI_MEDIATEST_FAILED 0x0061
#define PXENV_STATUS_UNDI_CANNOT_INIT_NIC_FOR_MCAST 0x0062
#define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_NIC 0x0063
#define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_PHY 0x0064
#define PXENV_STATUS_UNDI_CANNOT_READ_CONFIG_DATA 0x0065
#define PXENV_STATUS_UNDI_CANNOT_READ_INIT_DATA 0x0066
#define PXENV_STATUS_UNDI_BAD_MAC_ADDRESS 0x0067
#define PXENV_STATUS_UNDI_BAD_EEPROM_CHECKSUM 0x0068
#define PXENV_STATUS_UNDI_ERROR_SETTING_ISR 0x0069
#define PXENV_STATUS_UNDI_INVALID_STATE 0x006a
#define PXENV_STATUS_UNDI_TRANSMIT_ERROR 0x006b
#define PXENV_STATUS_UNDI_INVALID_PARAMETER 0x006c
/* ROM and NBP bootstrap errors (0x0070 to 0x007f) */
#define PXENV_STATUS_BSTRAP_PROMPT_MENU 0x0074
#define PXENV_STATUS_BSTRAP_MCAST_ADDR 0x0076
#define PXENV_STATUS_BSTRAP_MISSING_LIST 0x0077
#define PXENV_STATUS_BSTRAP_NO_RESPONSE 0x0078
#define PXENV_STATUS_BSTRAP_FILE_TOO_BIG 0x0079
/* Environment NBP errors (0x0080 to 0x008f) */
/* Reserved errors (0x0090 to 0x009f) */
/* Miscellaneous errors (0x00a0 to 0x00af) */
#define PXENV_STATUS_BINL_CANCELED_BY_KEYSTROKE 0x00a0
#define PXENV_STATUS_BINL_NO_PXE_SERVER 0x00a1
#define PXENV_STATUS_NOT_AVAILABLE_IN_PMODE 0x00a2
#define PXENV_STATUS_NOT_AVAILABLE_IN_RMODE 0x00a3
/* BUSD errors (0x00b0 to 0x00bf) */
#define PXENV_STATUS_BUSD_DEVICE_NOT_SUPPORTED 0x00b0
/* Loader errors (0x00c0 to 0x00cf) */
#define PXENV_STATUS_LOADER_NO_FREE_BASE_MEMORY 0x00c0
#define PXENV_STATUS_LOADER_NO_BC_ROMID 0x00c1
#define PXENV_STATUS_LOADER_BAD_BC_ROMID 0x00c2
#define PXENV_STATUS_LOADER_BAD_BC_RUNTIME_IMAGE 0x00c3
#define PXENV_STATUS_LOADER_NO_UNDI_ROMID 0x00c4
#define PXENV_STATUS_LOADER_BAD_UNDI_ROMID 0x00c5
#define PXENV_STATUS_LOADER_BAD_UNDI_DRIVER_IMAGE 0x00c6
#define PXENV_STATUS_LOADER_NO_PXE_STRUCT 0x00c8
#define PXENV_STATUS_LOADER_NO_PXENV_STRUCT 0x00c9
#define PXENV_STATUS_LOADER_UNDI_START 0x00ca
#define PXENV_STATUS_LOADER_BC_START 0x00cb
/** @} */
/**
* @defgroup posixerrors POSIX error codes
*
* The names and meanings (but not the values) of these error codes
* are defined by POSIX. We choose to assign unique values which
* incorporate the closest equivalent PXE error code, so that code may
* simply use ENOMEM, rather than having to use the cumbersome
* (ENOMEM|PXENV_STATUS_OUT_OF_RESOURCES).
*
* @{
*/
/** Operation completed successfully */
#define ENOERR ( ERRFILE | PXENV_STATUS_SUCCESS | 0x00000000 )
/** Arg list too long */
#define E2BIG ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x01000000 )
/** Permission denied */
#define EACCES ( ERRFILE | PXENV_STATUS_TFTP_ACCESS_VIOLATION | 0x02000000 )
/** Address in use */
#define EADDRINUSE ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x03000000 )
/** Address not available */
#define EADDRNOTAVAIL ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x04000000 )
/** Address family not supported */
#define EAFNOSUPPORT ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x05000000 )
/** Resource temporarily unavailable */
#define EAGAIN ( ERRFILE | PXENV_STATUS_FAILURE | 0x06000000 )
/** Connection already in progress */
#define EALREADY ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x07000000 )
/** Bad file descriptor */
#define EBADF ( ERRFILE | PXENV_STATUS_TFTP_CLOSED | 0x08000000 )
/** Bad message */
#define EBADMSG ( ERRFILE | PXENV_STATUS_FAILURE | 0x09000000 )
/** Resource busy */
#define EBUSY ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x0a000000 )
/** Operation canceled */
#define ECANCELED \
( ERRFILE | PXENV_STATUS_BINL_CANCELED_BY_KEYSTROKE | 0x0b000000 )
/** No child processes */
#define ECHILD ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x0c000000 )
/** Connection aborted */
#define ECONNABORTED \
( ERRFILE | PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION | 0x0d000000 )
/** Connection refused */
#define ECONNREFUSED \
( ERRFILE | PXENV_STATUS_TFTP_CANNOT_OPEN_CONNECTION | 0x0e000000 )
/** Connection reset */
#define ECONNRESET \
( ERRFILE | PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION | 0x0f000000 )
/** Resource deadlock avoided */
#define EDEADLK ( ERRFILE | PXENV_STATUS_FAILURE | 0x10000000 )
/** Destination address required */
#define EDESTADDRREQ ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x11000000 )
/** Domain error */
#define EDOM ( ERRFILE | PXENV_STATUS_FAILURE | 0x12000000 )
/** Reserved */
#define EDQUOT ( ERRFILE | PXENV_STATUS_FAILURE | 0x13000000 )
/** File exists */
#define EEXIST ( ERRFILE | PXENV_STATUS_FAILURE | 0x14000000 )
/** Bad address */
#define EFAULT ( ERRFILE | PXENV_STATUS_MCOPY_PROBLEM | 0x15000000 )
/** File too large */
#define EFBIG ( ERRFILE | PXENV_STATUS_MCOPY_PROBLEM | 0x16000000 )
/** Host is unreachable */
#define EHOSTUNREACH ( ERRFILE | PXENV_STATUS_ARP_TIMEOUT | 0x17000000 )
/** Identifier removed */
#define EIDRM ( ERRFILE | PXENV_STATUS_FAILURE | 0x18000000 )
/** Illegal byte sequence */
#define EILSEQ ( ERRFILE | PXENV_STATUS_FAILURE | 0x19000000 )
/** Operation in progress */
#define EINPROGRESS ( ERRFILE | PXENV_STATUS_FAILURE | 0x1a000000 )
/** Interrupted function call */
#define EINTR ( ERRFILE | PXENV_STATUS_FAILURE | 0x1b000000 )
/** Invalid argument */
#define EINVAL ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x1c000000 )
/** Input/output error */
#define EIO \
( ERRFILE | PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION | 0x1d000000 )
/** Socket is connected */
#define EISCONN ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x1e000000 )
/** Is a directory */
#define EISDIR ( ERRFILE | PXENV_STATUS_FAILURE | 0x1f000000 )
/** Too many levels of symbolic links */
#define ELOOP ( ERRFILE | PXENV_STATUS_FAILURE | 0x20000000 )
/** Too many open files */
#define EMFILE ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x21000000 )
/** Too many links */
#define EMLINK ( ERRFILE | PXENV_STATUS_FAILURE | 0x22000000 )
/** Inappropriate message buffer length */
#define EMSGSIZE ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x23000000 )
/** Reserved */
#define EMULTIHOP ( ERRFILE | PXENV_STATUS_FAILURE | 0x24000000 )
/** Filename too long */
#define ENAMETOOLONG ( ERRFILE | PXENV_STATUS_FAILURE | 0x25000000 )
/** Network is down */
#define ENETDOWN ( ERRFILE | PXENV_STATUS_ARP_TIMEOUT | 0x26000000 )
/** Connection aborted by network */
#define ENETRESET ( ERRFILE | PXENV_STATUS_FAILURE | 0x27000000 )
/** Network unreachable */
#define ENETUNREACH ( ERRFILE | PXENV_STATUS_ARP_TIMEOUT | 0x28000000 )
/** Too many open files in system */
#define ENFILE ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x29000000 )
/** No buffer space available */
#define ENOBUFS ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x2a000000 )
/** No message is available on the STREAM head read queue */
#define ENODATA ( ERRFILE | PXENV_STATUS_FAILURE | 0x2b000000 )
/** No such device */
#define ENODEV ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x2c000000 )
/** No such file or directory */
#define ENOENT ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x2d000000 )
/** Exec format error */
#define ENOEXEC ( ERRFILE | PXENV_STATUS_FAILURE | 0x2e000000 )
/** No locks available */
#define ENOLCK ( ERRFILE | PXENV_STATUS_FAILURE | 0x2f000000 )
/** Reserved */
#define ENOLINK ( ERRFILE | PXENV_STATUS_FAILURE | 0x30000000 )
/** Not enough space */
#define ENOMEM ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x31000000 )
/** No message of the desired type */
#define ENOMSG ( ERRFILE | PXENV_STATUS_FAILURE | 0x32000000 )
/** Protocol not available */
#define ENOPROTOOPT ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x33000000 )
/** No space left on device */
#define ENOSPC ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x34000000 )
/** No STREAM resources */
#define ENOSR ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x35000000 )
/** Not a STREAM */
#define ENOSTR ( ERRFILE | PXENV_STATUS_FAILURE | 0x36000000 )
/** Function not implemented */
#define ENOSYS ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x37000000 )
/** The socket is not connected */
#define ENOTCONN ( ERRFILE | PXENV_STATUS_FAILURE | 0x38000000 )
/** Not a directory */
#define ENOTDIR ( ERRFILE | PXENV_STATUS_FAILURE | 0x39000000 )
/** Directory not empty */
#define ENOTEMPTY ( ERRFILE | PXENV_STATUS_FAILURE | 0x3a000000 )
/** Not a socket */
#define ENOTSOCK ( ERRFILE | PXENV_STATUS_FAILURE | 0x3b000000 )
/** Not supported */
#define ENOTSUP ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x3c000000 )
/** Inappropriate I/O control operation */
#define ENOTTY ( ERRFILE | PXENV_STATUS_FAILURE | 0x3d000000 )
/** No such device or address */
#define ENXIO ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x3e000000 )
/** Operation not supported on socket */
#define EOPNOTSUPP ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x3f000000 )
/** Value too large to be stored in data type */
#define EOVERFLOW ( ERRFILE | PXENV_STATUS_FAILURE | 0x40000000 )
/** Operation not permitted */
#define EPERM ( ERRFILE | PXENV_STATUS_TFTP_ACCESS_VIOLATION | 0x41000000 )
/** Broken pipe */
#define EPIPE ( ERRFILE | PXENV_STATUS_FAILURE | 0x42000000 )
/** Protocol error */
#define EPROTO ( ERRFILE | PXENV_STATUS_FAILURE | 0x43000000 )
/** Protocol not supported */
#define EPROTONOSUPPORT ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x44000000 )
/** Protocol wrong type for socket */
#define EPROTOTYPE ( ERRFILE | PXENV_STATUS_FAILURE | 0x45000000 )
/** Result too large */
#define ERANGE ( ERRFILE | PXENV_STATUS_FAILURE | 0x46000000 )
/** Read-only file system */
#define EROFS ( ERRFILE | PXENV_STATUS_FAILURE | 0x47000000 )
/** Invalid seek */
#define ESPIPE ( ERRFILE | PXENV_STATUS_FAILURE | 0x48000000 )
/** No such process */
#define ESRCH ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x49000000 )
/** Stale file handle */
#define ESTALE ( ERRFILE | PXENV_STATUS_FAILURE | 0x4a000000 )
/** STREAM ioctl() timeout */
#define ETIME ( ERRFILE | PXENV_STATUS_FAILURE | 0x4b000000 )
/** Operation timed out */
#define ETIMEDOUT ( ERRFILE | PXENV_STATUS_TFTP_READ_TIMEOUT | 0x4c000000 )
/** Text file busy */
#define ETXTBSY ( ERRFILE | PXENV_STATUS_FAILURE | 0x4d000000 )
/** Operation would block (different from EAGAIN!) */
#define EWOULDBLOCK ( ERRFILE | PXENV_STATUS_TFTP_OPEN | 0x4e000000 )
/** Improper link */
#define EXDEV ( ERRFILE | PXENV_STATUS_FAILURE | 0x4f000000 )
/** @} */
/**
* @defgroup euniq Per-file error disambiguators
*
* Files which use the same error number multiple times should
* probably define their own error subspace using these
* disambiguators. For example:
*
* #define ETCP_HEADER_TOO_SHORT EUNIQ_01
* #define ETCP_BAD_CHECKSUM EUNIQ_02
*
* @{
*/
#define EUNIQ_01 0x00000100
#define EUNIQ_02 0x00000200
#define EUNIQ_03 0x00000300
#define EUNIQ_04 0x00000400
#define EUNIQ_05 0x00000500
#define EUNIQ_06 0x00000600
#define EUNIQ_07 0x00000700
#define EUNIQ_08 0x00000800
#define EUNIQ_09 0x00000900
#define EUNIQ_0A 0x00000a00
#define EUNIQ_0B 0x00000b00
#define EUNIQ_0C 0x00000c00
#define EUNIQ_0D 0x00000d00
#define EUNIQ_0E 0x00000e00
#define EUNIQ_0F 0x00000f00
#define EUNIQ_10 0x00001000
#define EUNIQ_11 0x00001100
#define EUNIQ_12 0x00001200
#define EUNIQ_13 0x00001300
#define EUNIQ_14 0x00001400
#define EUNIQ_15 0x00001500
#define EUNIQ_16 0x00001600
#define EUNIQ_17 0x00001700
#define EUNIQ_18 0x00001800
#define EUNIQ_19 0x00001900
#define EUNIQ_1A 0x00001a00
#define EUNIQ_1B 0x00001b00
#define EUNIQ_1C 0x00001c00
#define EUNIQ_1D 0x00001d00
#define EUNIQ_1E 0x00001e00
#define EUNIQ_1F 0x00001f00
/** @} */
extern int errno;
#endif /* ERRNO_H */
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