mirror of
https://github.com/ibm-s390-linux/s390-tools.git
synced 2026-08-05 02:14:52 +00:00
ce59a299cb
Add required zlib_deflate parts based on kernel zlib code in preparation to DASD dumper DFLTCC deflate exploitation. Omit inflate modules in order to minimize the dumper size (no decompression is required for the dumping). Adjust include statements leaving other code as is. Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com> Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
38 lines
1015 B
C
38 lines
1015 B
C
// SPDX-License-Identifier: Zlib
|
|
/* dfltcc.c - SystemZ DEFLATE CONVERSION CALL support. */
|
|
|
|
#include "dfltcc_util.h"
|
|
#include "dfltcc.h"
|
|
|
|
char *oesc_msg(
|
|
char *buf,
|
|
int oesc
|
|
)
|
|
{
|
|
if (oesc == 0x00)
|
|
return NULL; /* Successful completion */
|
|
else {
|
|
#ifdef STATIC
|
|
return NULL; /* Ignore for pre-boot decompressor */
|
|
#else
|
|
sprintf(buf, "Operation-Ending-Supplemental Code is 0x%.2X", oesc);
|
|
return buf;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void dfltcc_reset_state(struct dfltcc_state *dfltcc_state) {
|
|
/* Initialize available functions */
|
|
if (is_dfltcc_enabled()) {
|
|
dfltcc(DFLTCC_QAF, &dfltcc_state->param, NULL, NULL, NULL, NULL, NULL);
|
|
memmove(&dfltcc_state->af, &dfltcc_state->param, sizeof(dfltcc_state->af));
|
|
} else
|
|
memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af));
|
|
|
|
/* Initialize parameter block */
|
|
memset(&dfltcc_state->param, 0, sizeof(dfltcc_state->param));
|
|
dfltcc_state->param.nt = 1;
|
|
dfltcc_state->param.ribm = DFLTCC_RIBM;
|
|
}
|
|
|