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kernel: usercopy functions

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Matheus
2024-06-09 19:31:26 -03:00
parent 429f56aced
commit 50b4b45d00
53 changed files with 712 additions and 260 deletions
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kernel-src/io/block/block.c
+6 -4
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@@ -6,6 +6,7 @@
#include <kernel/devfs.h>
#include <string.h>
#include <kernel/vmm.h>
#include <kernel/usercopy.h>
#define DISK_READ(desc, buf, lba, size) (desc)->read(desc->private, buf, lba, size)
#define DISK_WRITE(desc, buf, lba, size) (desc)->write(desc->private, buf, lba, size)
@@ -140,10 +141,11 @@ static int ioctl(int minor, unsigned long request, void *arg, int *result) {
switch (request) {
case BLOCK_IOCTL_GETDESC:
*(blockdesc_t *)arg = *desc;
((blockdesc_t *)arg)->write = NULL;
((blockdesc_t *)arg)->read = NULL;
((blockdesc_t *)arg)->private = NULL;
blockdesc_t copy = *desc;
copy.write = NULL;
copy.read = NULL;
copy.private = NULL;
ret = USERCOPY_POSSIBLY_TO_USER(arg, &copy, sizeof(blockdesc_t));
break;
default:
ret = ENOTTY;