ISO文件系统成功
This commit is contained in:
xiaoyi1212
parent
79cef43d29
commit
02c5624824
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@ -39,4 +39,5 @@
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### 贡献者们
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* XIAOYI12 - xiaoyi1212 负责主要的OS开发
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* min0911Y - min0911 负责OS文件系统开发
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* QtLittleXu - XuYuxuan 负责OS文档编写
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@ -39,4 +39,5 @@ Welcome to create pull requests or issues to this project. I am really happy to
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### Contributors
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* XIAOYI12 - xiaoyi12 OS Development
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* min0911Y - min0911 OS FileSystem Development
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* QtLittleXu - XuYuxuan OS Document
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204
src/fs/iso9660.c
204
src/fs/iso9660.c
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@ -38,8 +38,8 @@ static l9660_file *last_file;
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static char gbuf[2048];
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#endif
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l9660_fs *fs;
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l9660_dir *root_dir;
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#define get_now_dir(vfs) ((l9660_fs_status_t *)(vfs->cache))->now_dir
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static char *strchrnul(const char *s, int c)
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{
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@ -341,8 +341,7 @@ bool ISO_Check(uint8_t disk_number)
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kfree(buffer);
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return true; // 是 ISO9660 文件系统
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}
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else
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{
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else{
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kfree(buffer);
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return false; // 不是 ISO9660 文件系统
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}
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@ -350,12 +349,16 @@ bool ISO_Check(uint8_t disk_number)
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void ISO_InitFs(struct vfs_t *vfs, uint8_t disk_number)
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{
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fs = (l9660_fs *)kmalloc(sizeof(l9660_fs));
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vfs->cache = (void *)fs;
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l9660_fs_status_t *fs_m;
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fs_m = (l9660_fs_status_t*) kmalloc(sizeof(l9660_fs_status_t));
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fs_m->fs = (l9660_fs *)kmalloc(sizeof(l9660_fs));
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vfs->cache = (void *)fs_m;
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printf("ISO Load init...");
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l9660_status a = l9660_openfs(fs,read_sector,disk_number);
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a = l9660_fs_open_root(root_dir, fs);
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printf("%d\n",a);
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l9660_openfs(fs_m->fs,read_sector,disk_number);
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l9660_fs_open_root(&fs_m->root_dir, fs_m->fs);
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fs_m->now_dir = fs_m->root_dir;
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logkf("%08x\n",vfs->cache);
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/*
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l9660_file file;
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for (;;) {
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@ -390,89 +393,125 @@ void ISO_InitFs(struct vfs_t *vfs, uint8_t disk_number)
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void ISO_CDFile(){}
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vfs_file *ISO_GetFile(char* path1){
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l9660_dir bmpDict;
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char *path = (char *)kmalloc(strlen(path1) + 1);
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char *bmp = path;
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strcpy(path, path1);
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strtoupper(path);
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if (strncmp("/", path, 1) == 0) {
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path += 1;
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bmpDict = root_dir;
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}
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if (path[0] == '\\' || path[0] == '/') {
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// 跳过反斜杠和正斜杠
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for (int i = 0; i < strlen(path); i++) {
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if (path[i] != '\\' && path[i] != '/') {
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path += i;
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break;
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}
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}
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}
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char *temp_name = (char *)kmalloc(128);
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int i = 0;
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l9660_file *finfo;
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while (1) {
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int j;
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for (j = 0; i < strlen(path); i++, j++) {
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if (path[i] == '\\' || path[i] == '/') {
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temp_name[j] = '\0';
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i++;
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break;
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}
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temp_name[j] = path[i];
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}
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finfo = dict_search(temp_name, bmpDict, get_directory_max(bmpDict, vfs));
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if (finfo == 0) {
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if (path[i] != 0) {
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bmpDict = NULL;
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}
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goto END;
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} else {
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if (get_clustno(finfo->clustno_high, finfo->clustno_low) != 0) {
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for (int count = 1;
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FindForCount(count, get_dm(vfs).directory_clustno_list) != NULL;
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count++) {
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struct List *list =
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FindForCount(count, get_dm(vfs).directory_clustno_list);
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if (get_clustno(finfo->clustno_high, finfo->clustno_low) ==
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list->val) {
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list = FindForCount(count, get_dm(vfs).directory_list);
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bmpDict = (struct FAT_FILEINFO *)list->val;
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break;
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}
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}
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} else {
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bmpDict = root_dir;
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}
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memclean(temp_name, 128);
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if (path[i] == '\0') {
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goto END;
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}
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}
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}
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END:
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kfree((void *)temp_name);
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kfree(((void *)bmp));
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return bmpDict;
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// strtoupper(path1);
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// if (strcmp(path1, "/") == 0) {
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// return fs_m->root_dir;
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// }
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return NULL;
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}
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void ISO_CopyCache(struct vfs_t *dest, struct vfs_t *src){
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dest->cache = kmalloc(sizeof(l9660_fs));
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memcpy(dest->cache, src->cache, sizeof(l9660_fs));
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dest->cache = kmalloc(sizeof(l9660_fs_status_t));
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memcpy(dest->cache, src->cache, sizeof(l9660_fs_status_t));
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}
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void ISO_cd(struct vfs_t *vfs, char *dictName){
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int ISO_cd(struct vfs_t *vfs, char *dictname){
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//
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// strtoupper(dictname);
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//
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if (strcmp(dictname, "/") == 0) {
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while (vfs->path->ctl->all != 0) {
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kfree((FindForCount(vfs->path->ctl->all, vfs->path)->val));
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DeleteVal(vfs->path->ctl->all, vfs->path);
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}
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l9660_fs_status_t *fs_m = (l9660_fs_status_t *)vfs->cache;
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get_now_dir(vfs) = fs_m->root_dir;
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return 1;
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}
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void ISO_ReadFile(struct vfs_t *vfs, char *path, char *buffer){
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l9660_dir finfo;
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l9660_status a = l9660_opendirat(&finfo,&get_now_dir(vfs),dictname);
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if (a) {
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return 0;
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}
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get_now_dir(vfs) = finfo;
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if (strcmp(dictname, "..") != 0 && strcmp(dictname, ".") != 0) {
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char *dict = kmalloc(255);
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strcpy(dict, dictname);
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AddVal(dict, vfs->path);
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}
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void ISO_ListFile(struct vfs_t *vfs, char *dictpath){
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if (strcmp(dictname, "..") == 0) {
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kfree((FindForCount(vfs->path->ctl->all, vfs->path)->val));
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DeleteVal(vfs->path->ctl->all, vfs->path);
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}
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return 1;
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}
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bool ISO_ReadFile(struct vfs_t *vfs, char *path, char *buffer){
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l9660_file file;
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l9660_status a = l9660_openat(&file, &get_now_dir(vfs),path);
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if(a) {
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return false; // not found
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}
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for(;;) {
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size_t read;
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l9660_read(&file, buffer, 128, &read);
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if (read == 0)
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break;
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buffer += read;
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}
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return true;
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}
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List *ISO_ListFile(struct vfs_t *vfs, char *dictpath){
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l9660_dir finfo;
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if(strcmp(dictpath,"") == 0)
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finfo = get_now_dir(vfs);
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else {
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l9660_status a = l9660_opendirat(&finfo,&get_now_dir(vfs),dictpath);
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if (a) {
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return NULL;
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}
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}
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List *result = NewList();
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for (;;) {
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l9660_dirent *dent;
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l9660_readdir(&finfo, &dent);
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if (dent == 0)
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break;
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vfs_file *d = kmalloc(sizeof(vfs_file));
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memclean((void *)d,sizeof(vfs_file));
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int j = 0;
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if(memcmp("\0",dent->name,dent->name_len) == 0) {
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d->name[j++] = '.';
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d->name[j] = 0;
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} else if (memcmp("\1",dent->name,dent->name_len) == 0) {
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d->name[j++] = '.';
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d->name[j++] = '.';
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d->name[j] = 0;
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}
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else
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for(;j<dent->name_len;j++) {
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if(dent->name[j] == ';') {
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break;
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}
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d->name[j] = dent->name[j];
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}
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d->name[j] = 0;
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d->type = FLE;
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if(dent->flags & DENT_ISDIR) {
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d->type = DIR;
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} else {
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d->size = READ32(dent->size);
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}
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AddVal(d, result);
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}
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return result;
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}
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int ISO_FileSize(struct vfs_t *vfs, char *filename) {
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l9660_file file;
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l9660_status a = l9660_openat(&file, &get_now_dir(vfs),filename);
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if(a) {
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return -1; // not found
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}
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return file.length;
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}
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void init_iso9660()
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{
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@ -491,6 +530,7 @@ void init_iso9660()
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fs.cd = ISO_cd;
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fs.ReadFile = ISO_ReadFile;
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fs.ListFile = ISO_ListFile;
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fs.FileSize = ISO_FileSize;
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vfs_register_fs(fs);
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}
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@ -8,6 +8,7 @@
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#include <stdint.h>
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#include <stddef.h>
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#include "common.h"
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#include "list.h"
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typedef enum {
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/*! Success! */
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@ -121,10 +122,8 @@ typedef union {
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char _bits[2048];
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} l9660_vdesc;
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/* File system structure.
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* Stick this inside your own structure and cast/offset as appropriate to store
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* private data
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*/
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typedef struct l9660_file ;
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typedef struct l9660_fs {
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#ifdef L9660_SINGLEBUFFER
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union {
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@ -157,6 +156,13 @@ typedef struct {
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l9660_file file;
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} l9660_dir;
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typedef struct l9660_fs_status{
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l9660_fs *fs;
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l9660_dir root_dir;
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l9660_dir now_dir;
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}l9660_fs_status_t;
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uint32_t l9660_tell(l9660_file *f);
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l9660_status l9660_read(l9660_file *f, void *buf, size_t size, size_t *read);
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l9660_status l9660_seek(l9660_file *f, int whence, int32_t offset);
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