57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
#include <kernel/fs/vfs.h>
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#include <kernel/memory.h>
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#include <kernel/fs/stat.h>
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#include <kernel/util.h>
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// Internal functions
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struct dentry *vfs_dentry_resolve(const char *path, int mode);
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int vfs_mkdir(const char *pathname, mode_t mode)
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{
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extern struct dentry *vfs_root_node;
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struct dentry *parent_dentry;
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struct dentry *folder;
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char *name;
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// Get folder name
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name = strrchr(pathname, '/');
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name = (name == NULL) ? (void *)pathname : &name[1];
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// Get parent dentry
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parent_dentry = vfs_dentry_resolve(pathname, 1);
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// Check parent dentry and FS primitives
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if (parent_dentry == NULL || parent_dentry->dentry_op.inode_op->mkdir == NULL)
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return (-1);
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// Try to create new dentry
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folder = pm_alloc(sizeof(struct dentry));
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if (folder == NULL)
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return (-2);
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// Try to request new folder
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folder->inode = parent_dentry->dentry_op.inode_op->mkdir(parent_dentry->inode, name, mode);
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if (folder->inode == NULL)
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{
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pm_free(folder);
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return (-3);
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}
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// Initialize new dentry
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memset(folder->name, 0x00, VFS_DENTRY_NAME_LENGHT);
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strncpy(folder->name, name, VFS_DENTRY_NAME_LENGHT);
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folder->mode = mode | __S_IFDIR;
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folder->parent = parent_dentry;
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folder->next = parent_dentry->child;
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folder->child = NULL;
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folder->dentry_op.file_op = parent_dentry->dentry_op.file_op;
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folder->dentry_op.inode_op = parent_dentry->dentry_op.inode_op;
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folder->mnt.inode = NULL;
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folder->mnt.inode_op = NULL;
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folder->mnt.file_op = NULL;
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// Release dentry
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parent_dentry->child = folder;
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return (0);
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}
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