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Implement an ATA driver, Add vfsmount/vfsunmount syscalls

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This commit is contained in:
Kamil Kowalczyk
2025-10-14 00:39:59 +02:00
parent cb9e15330e
commit 25cb309105
19 changed files with 455 additions and 58 deletions
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63
kernel/syscall/vfs.c Normal file
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#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include "hal/hal.h"
#include "syscall.h"
#include "vfs.h"
#include "errors.h"
#include "sysdefs/devctl.h"
#include "vfs/vfs.h"
#include "spinlock/spinlock.h"
#include "dev/dev.h"
#include "proc/proc.h"
#include "storedev/storedev.h"
int32_t SYSCALL4(sys_vfsmount, mountpoint1, fstypestr1, devid1, format1) {
int32_t ret = E_OK;
char *mountpoint = (char *)mountpoint1;
char *fstypestr = (char *)fstypestr1;
Dev_t *dev = (Dev_t *)devid1;
bool format = (bool)format1;
if (mountpoint == NULL) { ret = E_INVALIDARGUMENT; goto done; }
if (fstypestr == NULL) { ret = E_INVALIDARGUMENT; goto done; }
if (dev == NULL) { ret = E_INVALIDARGUMENT; goto done; }
if (*dev >= PROC_DEVHANDLES_MAX) { ret = E_INVALIDARGUMENT; goto done; }
int32_t fstype;
if (hal_strcmp(fstypestr, "LittleFS") == 0) {
fstype = VFS_LITTLEFS;
} else {
ret = E_INVALIDARGUMENT;
goto done;
}
spinlock_acquire(&PROCS.spinlock);
Proc *proc = PROCS.current;
spinlock_release(&PROCS.spinlock);
Dev *dp = proc->devs[*dev];
if (dp == NULL) { ret = E_NOENTRY; goto done; }
StoreDev *sd = (StoreDev *)dp->extra;
if (sd != NULL && sd->_magic != STOREDEV_MAGIC) { ret = E_NOENTRY; goto done; }
ret = vfs_mount(mountpoint, fstype, sd, format);
done:
return ret;
}
int32_t SYSCALL1(sys_vfsunmount, mountpoint1) {
int32_t ret = E_OK;
char *mountpoint = (char *)mountpoint1;
if (mountpoint == NULL) { ret = E_INVALIDARGUMENT; goto done; }
ret = vfs_unmount(mountpoint);
done:
return ret;
}