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为vfs挂载文件系统增加挂载点路径参数
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@ -10,25 +10,31 @@
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// 为filesystem_type_t结构体实例化一个链表头
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// 为filesystem_type_t结构体实例化一个链表头
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static struct vfs_filesystem_type_t vfs_fs = {"filesystem", 0};
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static struct vfs_filesystem_type_t vfs_fs = {"filesystem", 0};
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struct vfs_superblock_t *vfs_root_sb = NULL;
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/**
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/**
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* @brief 挂载文件系统
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* @brief 挂载文件系统
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*
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*
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* @param path 要挂载到的路径
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* @param name 文件系统名
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* @param name 文件系统名
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* @param blk 块设备结构体
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* @param blk 块设备结构体
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* @return struct vfs_superblock_t*
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* @return struct vfs_superblock_t* 挂载后,文件系统的超级块
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*/
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*/
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struct vfs_superblock_t *vfs_mount_fs(char *name, struct block_device *blk)
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struct vfs_superblock_t *vfs_mount_fs(const char *path, char *name, struct block_device *blk)
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{
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{
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// todo: 选择挂载点
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struct vfs_filesystem_type_t *p = NULL;
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struct vfs_filesystem_type_t *p = NULL;
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for (p = &vfs_fs; p; p = p->next)
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for (p = &vfs_fs; p; p = p->next)
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{
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{
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if (!strcmp(p->name, name)) // 存在符合的文件系统
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if (!strcmp(p->name, name)) // 存在符合的文件系统
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{
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{
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return p->read_superblock(blk);
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struct vfs_superblock_t *sb = p->read_superblock(blk);
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if (strcmp(path, "/") == 0) // 如果挂载到的是'/'挂载点,则让其成为最顶层的文件系统
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vfs_root_sb = sb;
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return sb;
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}
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}
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}
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}
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kdebug("unsupported fs: %s", name);
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kdebug("unsupported fs: %s", name);
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return NULL;
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return NULL;
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}
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}
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@ -15,7 +15,7 @@
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#include <common/fcntl.h>
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#include <common/fcntl.h>
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#include <common/blk_types.h>
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#include <common/blk_types.h>
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struct vfs_superblock_t *vfs_root_sb = NULL;
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extern struct vfs_superblock_t *vfs_root_sb;
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#define VFS_DPT_MBR 0 // MBR分区表
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#define VFS_DPT_MBR 0 // MBR分区表
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#define VFS_DPT_GPT 1 // GPT分区表
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#define VFS_DPT_GPT 1 // GPT分区表
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@ -175,11 +175,12 @@ uint64_t vfs_unregister_filesystem(struct vfs_filesystem_type_t *fs);
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/**
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/**
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* @brief 挂载文件系统
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* @brief 挂载文件系统
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*
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*
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* @param path 要挂载到的路径
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* @param name 文件系统名
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* @param name 文件系统名
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* @param blk 块设备结构体
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* @param blk 块设备结构体
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* @return struct vfs_superblock_t*
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* @return struct vfs_superblock_t* 挂载后,文件系统的超级块
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*/
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*/
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struct vfs_superblock_t *vfs_mount_fs(char *name, struct block_device *blk);
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struct vfs_superblock_t *vfs_mount_fs(const char *path, char *name, struct block_device *blk);
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/**
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/**
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* @brief 按照路径查找文件
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* @brief 按照路径查找文件
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@ -28,7 +28,7 @@ struct vfs_superblock_t *fat32_register_partition(uint8_t ahci_ctrl_num, uint8_t
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{
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{
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// 挂载文件系统到vfs
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// 挂载文件系统到vfs
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return vfs_mount_fs("FAT32", (ahci_gendisk0.partition + 0));
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return vfs_mount_fs("/", "FAT32", (ahci_gendisk0.partition + 0));
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}
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}
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/**
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/**
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@ -1263,6 +1263,6 @@ void fat32_init()
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vfs_register_filesystem(&fat32_fs_type);
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vfs_register_filesystem(&fat32_fs_type);
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// 挂载根文件系统
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// 挂载根文件系统
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vfs_root_sb = fat32_register_partition(0, 0, 0);
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fat32_register_partition(0, 0, 0);
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kinfo("FAT32 initialized.");
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kinfo("FAT32 initialized.");
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}
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}
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