diff options
| -rw-r--r-- | src/core/errno.c | 29 | ||||
| -rw-r--r-- | src/core/vsprintf.c | 22 | ||||
| -rw-r--r-- | src/include/errno.h | 138 |
3 files changed, 180 insertions, 9 deletions
diff --git a/src/core/errno.c b/src/core/errno.c new file mode 100644 index 00000000..f0cf5a62 --- /dev/null +++ b/src/core/errno.c @@ -0,0 +1,29 @@ +#include "errno.h" +#include "vsprintf.h" + +/* Global "last error" number */ +int errno; + +static struct errortab errortab_start[0] __table_start(errortab); +static struct errortab errortab_end[0] __table_end(errortab); + +/* + * Retrieve string representation of error number. + * + * If error not found in the error table, generate a generic "Error + * 0x0000" message. + * + */ +const char * strerror ( int errno ) { + static char *generic_message = "Error 0x0000"; + struct errortab *errortab; + + for ( errortab = errortab_start ; errortab < errortab_end ; + errortab++ ) { + if ( errortab->errno == errno ) + return errortab->text; + } + + sprintf ( generic_message + 8, "%hx", errno ); + return generic_message; +} diff --git a/src/core/vsprintf.c b/src/core/vsprintf.c index 414b4509..77373ccf 100644 --- a/src/core/vsprintf.c +++ b/src/core/vsprintf.c @@ -2,6 +2,7 @@ #include "if_ether.h" /* for ETH_ALEN */ #include "limits.h" /* for CHAR_BIT */ #include "console.h" +#include "errno.h" #include "vsprintf.h" #define LONG_SHIFT ((int)((sizeof(unsigned long)*CHAR_BIT) - 4)) @@ -31,7 +32,8 @@ PRINTF and friends **************************************************************************/ static int vsprintf(char *buf, const char *fmt, va_list args) { - char *p, *s; + const char *p; + char *s; s = buf; for ( ; *fmt != '\0'; ++fmt) { if (*fmt != '%') { @@ -49,8 +51,10 @@ static int vsprintf(char *buf, const char *fmt, va_list args) if (*fmt == 's') { for(p = va_arg(args, char *); *p != '\0'; p++) buf ? *s++ = *p : putchar(*p); - } - else { /* Length of item is bounded */ + } else if (*fmt == 'm') { + for(p = strerror(errno); *p != '\0'; p++) + buf ? *s++ = *p : putchar(*p); + } else { /* Length of item is bounded */ char tmp[40], *q = tmp; int alt = 0; int shift = INT_SHIFT; @@ -93,7 +97,7 @@ static int vsprintf(char *buf, const char *fmt, va_list args) *q++ = "0123456789ABCDEF"[(h >> shift) & 0xF] | ncase; } else if (*fmt == 'd') { - char *r; + char *r, *t; long i; if (shift > INT_SHIFT) { i = va_arg(args, long); @@ -104,17 +108,17 @@ static int vsprintf(char *buf, const char *fmt, va_list args) *q++ = '-'; i = -i; } - p = q; /* save beginning of digits */ + t = q; /* save beginning of digits */ do { *q++ = '0' + (i % 10); i /= 10; } while (i); /* reverse digits, stop in middle */ r = q; /* don't alter q */ - while (--r > p) { + while (--r > t) { i = *r; - *r = *p; - *p++ = i; + *r = *t; + *t++ = i; } } else if (*fmt == '@') { @@ -129,7 +133,7 @@ static int vsprintf(char *buf, const char *fmt, va_list args) --q; } else if (*fmt == '!') { - char *r; + const char *r; p = va_arg(args, char *); for (r = p + ETH_ALEN; p < r; ++p) q += sprintf(q, "%hhX:", *p); diff --git a/src/include/errno.h b/src/include/errno.h new file mode 100644 index 00000000..7b34ce97 --- /dev/null +++ b/src/include/errno.h @@ -0,0 +1,138 @@ +#ifndef ERRNO_H +#define ERRNO_H + +/* + * We define error codes that are a superset of those mentioned in the + * PXE specification. Various error string tables may be compiled in + * if required; if not compiled in, strerror(errno) will produce the + * text "error 0x<errno>". + * + */ + +/* PXE error codes are determined by the PXE specification */ + +/* Generic errors */ +#define PXENV_STATUS_SUCCESS 0x00 +#define PXENV_STATUS_FAILURE 0x01 +#define PXENV_STATUS_BAD_FUNC 0x02 +#define PXENV_STATUS_UNSUPPORTED 0x03 +#define PXENV_STATUS_KEEP_UNDI 0x04 +#define PXENV_STATUS_KEEP_ALL 0x05 +#define PXENV_STATUS_OUT_OF_RESOURCES 0x06 + +/* ARP errors (0x10 to 0x1f) */ +#define PXENV_STATUS_ARP_TIMEOUT 0x11 + +/* Base-Code state errors */ +#define PXENV_STATUS_UDP_CLOSED 0x18 +#define PXENV_STATUS_UDP_OPEN 0x19 +#define PXENV_STATUS_TFTP_CLOSED 0x1a +#define PXENV_STATUS_TFTP_OPEN 0x1b + +/* BIOS/system errors (0x20 to 0x2f) */ +#define PXENV_STATUS_MCOPY_PROBLEM 0x20 +#define PXENV_STATUS_BIS_INTEGRITY_FAILURE 0x21 +#define PXENV_STATUS_BIS_VALIDATE_FAILURE 0x22 +#define PXENV_STATUS_BIS_INIT_FAILURE 0x23 +#define PXENV_STATUS_BIS_SHUTDOWN_FAILURE 0x24 +#define PXENV_STATUS_BIS_GBOA_FAILURE 0x25 +#define PXENV_STATUS_BIS_FREE_FAILURE 0x26 +#define PXENV_STATUS_BIS_GSI_FAILURE 0x27 +#define PXENV_STATUS_BIS_BAD_CKSUM 0x28 + +/* TFTP/MTFTP errors (0x30 to 0x3f) */ +#define PXENV_STATUS_TFTP_CANNOT_ARP_ADDRESS 0x30 +#define PXENV_STATUS_TFTP_OPEN_TIMEOUT 0x32 +#define PXENV_STATUS_TFTP_UNKNOWN_OPCODE 0x33 +#define PXENV_STATUS_TFTP_READ_TIMEOUT 0x35 +#define PXENV_STATUS_TFTP_ERROR_OPCODE 0x36 +#define PXENV_STATUS_TFTP_CANNOT_OPEN_CONNECTION 0x38 +#define PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION 0x39 +#define PXENV_STATUS_TFTP_TOO_MANY_PACKAGES 0x3a +#define PXENV_STATUS_TFTP_FILE_NOT_FOUND 0x3b +#define PXENV_STATUS_TFTP_ACCESS_VIOLATION 0x3c +#define PXENV_STATUS_TFTP_NO_MCAST_ADDRESS 0x3d +#define PXENV_STATUS_TFTP_NO_FILESIZE 0x3e +#define PXENV_STATUS_TFTP_INVALID_PACKET_SIZE 0x3f + +/* Reserved errors 0x40 to 0x4f) */ + +/* DHCP/BOOTP errors (0x50 to 0x5f) */ +#define PXENV_STATUS_DHCP_TIMEOUT 0x51 +#define PXENV_STATUS_DHCP_NO_IP_ADDRESS 0x52 +#define PXENV_STATUS_DHCP_NO_BOOTFILE_NAME 0x53 +#define PXENV_STATUS_DHCP_BAD_IP_ADDRESS 0x54 + +/* Driver errors (0x60 to 0x6f) */ +#define PXENV_STATUS_UNDI_INVALID_FUNCTION 0x60 +#define PXENV_STATUS_UNDI_MEDIATEST_FAILED 0x61 +#define PXENV_STATUS_UNDI_CANNOT_INIT_NIC_FOR_MCAST 0x62 +#define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_NIC 0x63 +#define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_PHY 0x64 +#define PXENV_STATUS_UNDI_CANNOT_READ_CONFIG_DATA 0x65 +#define PXENV_STATUS_UNDI_CANNOT_READ_INIT_DATA 0x66 +#define PXENV_STATUS_UNDI_BAD_MAC_ADDRESS 0x67 +#define PXENV_STATUS_UNDI_BAD_EEPROM_CHECKSUM 0x68 +#define PXENV_STATUS_UNDI_ERROR_SETTING_ISR 0x69 +#define PXENV_STATUS_UNDI_INVALID_STATE 0x6a +#define PXENV_STATUS_UNDI_TRANSMIT_ERROR 0x6b +#define PXENV_STATUS_UNDI_INVALID_PARAMETER 0x6c + +/* ROM and NBP bootstrap errors (0x70 to 0x7f) */ +#define PXENV_STATUS_BSTRAP_PROMPT_MENU 0x74 +#define PXENV_STATUS_BSTRAP_MCAST_ADDR 0x76 +#define PXENV_STATUS_BSTRAP_MISSING_LIST 0x77 +#define PXENV_STATUS_BSTRAP_NO_RESPONSE 0x78 +#define PXENV_STATUS_BSTRAP_FILE_TOO_BIG 0x79 + +/* Environment NBP errors (0x80 to 0x8f) */ + +/* Reserved errors (0x90 to 0x9f) */ + +/* Miscellaneous errors (0xa0 to 0xaf) */ +#define PXENV_STATUS_BINL_CANCELED_BY_KEYSTROKE 0xa0 +#define PXENV_STATUS_BINL_NO_PXE_SERVER 0xa1 +#define PXENV_STATUS_NOT_AVAILABLE_IN_PMODE 0xa2 +#define PXENV_STATUS_NOT_AVAILABLE_IN_RMODE 0xa3 + +/* BUSD errors (0xb0 to 0xbf) */ +#define PXENV_STATUS_BUSD_DEVICE_NOT_SUPPORTED 0xb0 + +/* Loader errors (0xc0 to 0xcf) */ +#define PXENV_STATUS_LOADER_NO_FREE_BASE_MEMORY 0xc0 +#define PXENV_STATUS_LOADER_NO_BC_ROMID 0xc1 +#define PXENV_STATUS_LOADER_BAD_BC_ROMID 0xc2 +#define PXENV_STATUS_LOADER_BAD_BC_RUNTIME_IMAGE 0xc3 +#define PXENV_STATUS_LOADER_NO_UNDI_ROMID 0xc4 +#define PXENV_STATUS_LOADER_BAD_UNDI_ROMID 0xc5 +#define PXENV_STATUS_LOADER_BAD_UNDI_DRIVER_IMAGE 0xc6 +#define PXENV_STATUS_LOADER_NO_PXE_STRUCT 0xc8 +#define PXENV_STATUS_LOADER_NO_PXENV_STRUCT 0xc9 +#define PXENV_STATUS_LOADER_UNDI_START 0xca +#define PXENV_STATUS_LOADER_BC_START 0xcb + +/* + * The range 0xd0 to 0xff is defined as "Vendor errors" by the PXE + * spec. We place all our Etherboot-specific errors in this range. + * We also define some generic errors as aliases to the PXE errors. + * + */ + +#define ENOMEM PXENV_STATUS_OUT_OF_RESOURCES + +/* Data structures and declarations */ + +#include "tables.h" + +extern int errno; + +extern const char * strerror ( int errno ); + +struct errortab { + int errno; + const char *text; +}; + +#define __errortab __table(errortab,01) + +#endif /* ERRNO_H */ |