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sys/kern/kern_dump.c
Context not available. | |||||
#endif | #endif | ||||
int | int | ||||
dumpsys_buf_seek(struct dumperinfo *di, size_t sz) | |||||
{ | |||||
uint8_t buf[DEV_BSIZE]; | |||||
cem: Maybe make this `static`. | |||||
size_t nbytes; | |||||
int error; | |||||
bzero(buf, sizeof(buf)); | |||||
while (sz > 0) { | |||||
if (sz >= sizeof(buf)) | |||||
nbytes = sizeof(buf); | |||||
else | |||||
nbytes = sz; | |||||
cemUnsubmitted Done Inline Actionsnbytes = MIN(sz, sizeof(buf));? cem: `nbytes = MIN(sz, sizeof(buf));`? | |||||
error = dump_write(di, buf, 0, dumplo, nbytes); | |||||
if (error) | |||||
return (error); | |||||
dumplo += nbytes; | |||||
sz -= nbytes; | |||||
} | |||||
return (0); | |||||
} | |||||
int | |||||
dumpsys_buf_write(struct dumperinfo *di, char *ptr, size_t sz) | dumpsys_buf_write(struct dumperinfo *di, char *ptr, size_t sz) | ||||
{ | { | ||||
size_t len; | size_t len; | ||||
Context not available. | |||||
hdrgap = fileofs - DEV_ALIGN(hdrsz); | hdrgap = fileofs - DEV_ALIGN(hdrsz); | ||||
/* Determine dump offset on device. */ | /* Determine dump offset on device. */ | ||||
if (di->mediasize < SIZEOF_METADATA + dumpsize + sizeof(kdh) * 2) { | if (di->mediasize < SIZEOF_METADATA + dumpsize + sizeof(kdh) * 2 + | ||||
kerneldumpcrypto_dumpkeysize(di->kdc)) { | |||||
error = ENOSPC; | error = ENOSPC; | ||||
goto fail; | goto fail; | ||||
} | } | ||||
dumplo = di->mediaoffset + di->mediasize - dumpsize; | dumplo = di->mediaoffset + di->mediasize - dumpsize; | ||||
dumplo -= sizeof(kdh) * 2; | dumplo -= sizeof(kdh) * 2; | ||||
dumplo -= kerneldumpcrypto_dumpkeysize(di->kdc); | |||||
/* Initialize kernel dump crypto. */ | |||||
error = kerneldumpcrypto_init(di->kdc); | |||||
if (error) | |||||
goto fail; | |||||
mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_ARCH_VERSION, dumpsize, | mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_ARCH_VERSION, dumpsize, | ||||
di->blocksize); | kerneldumpcrypto_dumpkeysize(di->kdc), di->blocksize); | ||||
printf("Dumping %ju MB (%d chunks)\n", (uintmax_t)dumpsize >> 20, | printf("Dumping %ju MB (%d chunks)\n", (uintmax_t)dumpsize >> 20, | ||||
ehdr.e_phnum - DUMPSYS_NUM_AUX_HDRS); | ehdr.e_phnum - DUMPSYS_NUM_AUX_HDRS); | ||||
/* Dump leader */ | /* Dump leader */ | ||||
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh)); | error = dump_write_header(di, &kdh, 0, dumplo); | ||||
if (error) | if (error) | ||||
goto fail; | goto fail; | ||||
dumplo += sizeof(kdh); | dumplo += sizeof(kdh); | ||||
/* Dump key */ | |||||
error = dump_write_key(di, 0, dumplo); | |||||
if (error) | |||||
goto fail; | |||||
dumplo += kerneldumpcrypto_dumpkeysize(di->kdc); | |||||
/* Dump ELF header */ | /* Dump ELF header */ | ||||
error = dumpsys_buf_write(di, (char*)&ehdr, sizeof(ehdr)); | error = dumpsys_buf_write(di, (char*)&ehdr, sizeof(ehdr)); | ||||
if (error) | if (error) | ||||
Context not available. | |||||
* boundary. We cannot use MD_ALIGN on dumplo, because we don't | * boundary. We cannot use MD_ALIGN on dumplo, because we don't | ||||
* care and may very well be unaligned within the dump device. | * care and may very well be unaligned within the dump device. | ||||
*/ | */ | ||||
dumplo += hdrgap; | error = dumpsys_buf_seek(di, (size_t)hdrgap); | ||||
if (error) | |||||
goto fail; | |||||
/* Dump memory chunks (updates dumplo) */ | /* Dump memory chunks (updates dumplo) */ | ||||
error = dumpsys_foreach_chunk(dumpsys_cb_dumpdata, di); | error = dumpsys_foreach_chunk(dumpsys_cb_dumpdata, di); | ||||
Context not available. | |||||
goto fail; | goto fail; | ||||
/* Dump trailer */ | /* Dump trailer */ | ||||
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh)); | error = dump_write_header(di, &kdh, 0, dumplo); | ||||
if (error) | if (error) | ||||
goto fail; | goto fail; | ||||
dumplo += sizeof(kdh); | |||||
/* Signal completion, signoff and exit stage left. */ | /* Signal completion, signoff and exit stage left. */ | ||||
dump_write(di, NULL, 0, 0, 0); | dump_write(di, NULL, 0, 0, 0); | ||||
Context not available. |
Maybe make this static.