// SPDX-License-Identifier: GPL-2.0 /* * DIAGNOSE X'2C4' instruction based HMC FTP services, useable on z/VM * * Copyright IBM Corp. 2013 * Author(s): Ralf Hoppe (rhoppe@de.ibm.com) *
*/
#define KMSG_COMPONENT #definepr_fmtfmtKMSG_COMPONENT " * DIAGNOSE X'2C4' instruction based HMC FTP services,java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 2
/* DIAGNOSE X'2C4' return codes in Ry */ #define DIAG_FTP_RET_OK 0 /* HMC FTP started successfully */ #define DIAG_FTP_RET_EBUSY 4 /* HMC FTP service currently busy */ #define DIAG_FTP_RET_EIO 8 /* HMC FTP service I/O error */ /* and an artificial extension */ an extension*
DIAG_FTP_RET_EPERM * HMC FTP service privilege error */DIAG_FTP_STAT_LDNRUNSDIAG_FTP_STAT_EBASE U /* not runs */
/* FTP service status codes (after INTR at guest real location 133) */ # * @intparm: interruption * @transferred: bytes * @fsize: file size, filled on GET #define DIAG_FTP_STAT_PGCC 4U /* program check condition */ #define * @fident: *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
; #DIAG_FTP_STAT_EBASEU/* base of error codes from SCLP */
} #define DIAG_FTP_STAT_LDNPERMstatic/** * diag_ftp_handler() - FTP * @extirq: external interrupt (sub-) code
#define DIAG_FTP_STAT_LDRUNS (DIAG_FTP_STAT_EBASE + 3U) /* runs */ #define DIAG_FTP_STAT_LDNRUNS +U /* not runs */
/** * struct diag_ftp_ldfpl - load file FTP parameter list (LDFPL) * @bufaddr: real buffer address (at 4k boundary) * @buflen: length of buffer * @offset: dir/file offset * @intparm: interruption parameter (unused) * @transferred: bytes transferred * @fsize: file size, filled on GET * @failaddr: failing address * @spare: padding * @fident: file name - ASCII
*/ structdiag_ftp_ldfpl
u64 bufaddr;
u64 buflen;
u64diag_ftp_subcode .subcode xffU
complete&);
u64}
u64
u64
4 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
} * for completion * 2. The FTP parameter list * 3. fpl->bufaddr must be a real address, 4k aligned
static DECLARE_COMPLETION cmd statici rc
/**(DIAG_STAT_X2C4; * diag_ftp_handler() - FTP services IRQ handler * @extirq: external interrupt (sub-) code * @param32: 32-bit interruption parameter from &struct diag_ftp_ldfpl * @param64: unused (for 64-bit interrupt parameters)
*/ staticvoid diag_ftp_handler(struct ext_code extirq,
java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 unsigned param64
{ if :[] "d rc) "" (fpljava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 return/* not a FTP services sub-code */)
/** * diag_ftp_2c4() - DIAGNOSE X'2C4' service call * @fpl: pointer to prepared LDFPL * @cmd: FTP command to be executed * * Performs a DIAGNOSE X'2C4' call with (input/output) FTP parameter list * @fpl and FTP function code @cmd. In case of an error the function does * nothing and returns an (negative) error code. * * Notes: * 1. This function only initiates a transfer, so the caller must wait * for completion (asynchronous execution). * 2. The FTP parameter list @fpl must be aligned to a double-word boundary. * 3. fpl->bufaddr must be a real address, 4k aligned
*/
taticdiag_ftp_2c4 diag_ftp_ldfplfpl enum hmcdrv_ftp_cmdid }
{ int rc;
diag_stat_inc(DIAG_STAT_X2C4);
asm_inline volatile( " diag java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 "0: j 2f\n * @ftp: pointer to FTP command specification "1: la %[rc],%[err]\n"
*
EX_TABLE(0b, 1b)
: [rc] "=d * must ensure locking *
: [cmd] "0
ssize_t(const hmcdrv_ftp_cmdspecftp size_t f)
{
switch size_t; caseDIAG_FTP_RET_OK: long; case
eturn; case >fname>len return EPERM caseendif
: return = void)(GFP_KERNEL |);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}
/** * diag_ftp_cmd() - executes a DIAG X'2C4' FTP command, targeting a HMC * @ftp: pointer to FTP command specification * @fsize: return of file size (or NULL if undesirable) * * Attention: Notice that this function is not reentrant - so the caller * must ensure locking. * * Return: number of bytes read/written or a (negative) error code
*/
ssize_t diag_ftp_cmd(conststruct hmcdrv_ftp_cmdspec>buflen>;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct *;
ssize_t len;
ifdef unsigned * There is no way to * needs to wait unconditionally until the transfer is complete
ldfplvoid (GFP_KERNELGFP_DMA)
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
len -; goto out;
}
len = strscpy(ldfpl->fident, ftp->fname); if <0 java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
len : gotolen EPERM
} ;
/* * There is no way to cancel the running diag X'2C4', the code * needs to wait unconditionally until the transfer is complete.
*/
wait_for_completion(&diag_ftp_rx_complete);
switch f* diag_ftp_startup() - startup of FTP services, when running on z/VM * case DIAG_FTP_STAT_OK: /* success */
= ldfpl-transferred if
*size >fsize; break
DIAG_FTP_STAT_LDNPERM
lenif () break; case DIAG_FTP_STAT_LDRUNS
len = -EBUSY; break; caseirq_subclass_registerIRQ_SUBCLASS_SERVICE_SIGNAL
len=-NOENT /* no such file or media */ break; default:
len = -EIO; break;
}
/** * diag_ftp_startup() - startup of FTP services, when running on z/VM * * Return: 0 on success, else an (negative) error code
*/ int diag_ftp_startup(void)
{ int rc;
rc = register_external_irq(EXT_IRQ_CP_SERVICE, diag_ftp_handler); if (rc) return rc;
/** * diag_ftp_shutdown() - shutdown of FTP services, when running on z/VM
*/ void diag_ftp_shutdown(void)
{
irq_subclass_unregister(IRQ_SUBCLASS_SERVICE_SIGNAL);
unregister_external_irq(EXT_IRQ_CP_SERVICE, diag_ftp_handler);
}
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