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End transfers with MLT for Ultrix netload.

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Ultrix 4.00 netload requires transfers to end with Memory Load
with Transfer Address. The load address must be present, though
image data doesn't have to be present.
This commit is contained in:
Boris Gjenero
2020-10-24 10:13:04 -04:00
parent a00db1abf4
commit b2226e44e0
2 changed files with 34 additions and 15 deletions
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48
mopd/process.c
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@@ -381,19 +381,29 @@ mopNextLoad(const u_char *dst, const u_char *src, u_char new_count, int trans)
} else {
if (len == 0) {
idx = pindex;
mopcode = MOP_K_CODE_PLT;
mopPutChar (pkt, &idx, mopcode);
mopPutChar (pkt, &idx, dle->endcode);
mopPutChar (pkt, &idx, dle->count);
mopPutChar (pkt, &idx, MOP_K_PLTP_HSN);
mopPutChar (pkt, &idx, 3);
mopPutMulti(pkt, &idx, "ipc", 3);
mopPutChar (pkt, &idx, MOP_K_PLTP_HSA);
mopPutChar (pkt, &idx, 6);
mopPutMulti(pkt, &idx, src, 6);
mopPutChar (pkt, &idx, MOP_K_PLTP_HST);
mopPutTime (pkt, &idx, 0);
mopPutChar (pkt, &idx, 0);
mopPutLong (pkt, &idx, dle->xferaddr);
if (dle->endcode == MOP_K_CODE_PLT) {
mopPutChar (pkt, &idx, MOP_K_PLTP_HSN);
mopPutChar (pkt, &idx, 3);
mopPutMulti(pkt, &idx, "ipc", 3);
mopPutChar (pkt, &idx, MOP_K_PLTP_HSA);
mopPutChar (pkt, &idx, 6);
mopPutMulti(pkt, &idx, src, 6);
mopPutChar (pkt, &idx, MOP_K_PLTP_HST);
mopPutTime (pkt, &idx, 0);
mopPutChar (pkt, &idx, 0);
mopPutLong (pkt, &idx, dle->xferaddr);
} else if (dle->endcode == MOP_K_CODE_MLT) {
/* According to spec, load address could be omitted,
* but Ultrix 4.00 netload expects it to be there.
* It is irrelevant with no data, and only sent so
* the transfer address is at the expected location.
*/
mopPutLong (pkt, &idx, dle->nloadaddr);
/* Ultrix 4.00 kernel has high bit set, which causes crash */
mopPutLong (pkt, &idx, dle->xferaddr & ~0x80000000);
}
mopPutLength(pkt, trans, idx);
(void)mopGetLength(pkt, trans);
@@ -481,9 +491,19 @@ mopProcessDL(FILE *fd, struct if_info *ii, const u_char *pkt, int *idx,
pgtype = mopGetChar(pkt,idx); /* Program Type */
tmpc = mopGetChar(pkt,idx); /* Software ID Len */
dl_rpr = &dl;
memset(dl_rpr, 0, sizeof(*dl_rpr));
/* Ultrix 4.00 netload sends 0xff, but no string after it. */
if (tmpc == 0xff)
if (tmpc == 0xff) {
tmpc = 0;
/* Required by Ultrix 4.00 netload, not accepted by KA630-A.V1.3 */
dl_rpr->endcode = MOP_K_CODE_MLT;
} else {
dl_rpr->endcode = MOP_K_CODE_PLT;
}
if (tmpc > sizeof(pfile) - 1)
return;
for (i = 0; i < tmpc; i++) {
@@ -522,8 +542,6 @@ mopProcessDL(FILE *fd, struct if_info *ii, const u_char *pkt, int *idx,
tmpc = mopGetChar(pkt,idx); /* Processor */
dl_rpr = &dl;
memset(dl_rpr, 0, sizeof(*dl_rpr));
dl_rpr->ii = ii;
memmove((char *)(dl_rpr->eaddr), (const char *)src, 6);
mopProcessInfo(pkt,idx,moplen,dl_rpr,trans);