X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fwimlib_internal.h;h=86b0716d0d3b148efb817cf106a87e2fe53eefc2;hb=3489da595e09caf8d6867661c45b4dab188f6ece;hp=157a11748d14e6ab47b385e124375f5a67bd770b;hpb=6f77434ea6ff1407603410e28d1edb966c40e568;p=wimlib diff --git a/src/wimlib_internal.h b/src/wimlib_internal.h index 157a1174..86b0716d 100644 --- a/src/wimlib_internal.h +++ b/src/wimlib_internal.h @@ -31,7 +31,10 @@ struct stat; +#ifndef WIM_HASH_SIZE #define WIM_HASH_SIZE 20 +#endif + #define WIM_MAGIC_LEN 8 #define WIM_GID_LEN 16 #define WIM_UNUSED_LEN 60 @@ -44,8 +47,8 @@ struct stat; * of this size. */ #define WIM_CHUNK_SIZE 32768 -/* Version of the WIM file. I don't know if there has ever been a different - * version or not. */ +/* Version of the WIM file. There is an older version, but we don't support it + * yet. The differences between the versions are undocumented. */ #define WIM_VERSION 0x10d00 enum wim_integrity_status { @@ -183,7 +186,6 @@ struct wim_header { #define WIM_HDR_FLAG_COMPRESS_LZX 0x00040000 -#ifdef ENABLE_SECURITY_DATA /* Structure for security data. Each image in the WIM file has its own security * data. */ struct wim_security_data { @@ -205,20 +207,24 @@ struct wim_security_data { * exporting images between WIMs) */ u32 refcnt; } WIMSecurityData; -#endif + +struct link_group_table; + /* Metadata resource for an image. */ struct image_metadata { /* Pointer to the root dentry for the image. */ struct dentry *root_dentry; -#ifdef ENABLE_SECURITY_DATA /* Pointer to the security data for the image. */ struct wim_security_data *security_data; -#endif + /* A pointer to the lookup table entry for this image's metadata * resource. */ - struct lookup_table_entry *lookup_table_entry; + struct lookup_table_entry *metadata_lte; + + /* Hard link group table */ + struct link_group_table *lgt; /* True if the filesystem of the image has been modified. If this is * the case, the memory for the filesystem is not freed when switching @@ -259,18 +265,17 @@ typedef struct WIMStruct { /* The header of the WIM file. */ struct wim_header hdr; - /* The type of links to create when extracting files (hard, symbolic, or - * none.) */ - int link_type; + /* Temporary flags to use when extracting a WIM image or adding a WIM + * image. */ + union { + int extract_flags; + int add_flags; + }; /* The currently selected image, indexed starting at 1. If not 0, * subtract 1 from this to get the index of the current image in the * image_metadata array. */ - int current_image; - - /* True if files names are to be printed when doing extraction. - * May be used for other things later. */ - bool verbose; + int current_image; union { /* Set to true when extracting multiple images */ @@ -293,17 +298,15 @@ static inline struct dentry **wim_root_dentry_p(WIMStruct *w) return &w->image_metadata[w->current_image - 1].root_dentry; } -#ifdef ENABLE_SECURITY_DATA static inline struct wim_security_data *wim_security_data(WIMStruct *w) { return w->image_metadata[w->current_image - 1].security_data; } -#endif static inline struct lookup_table_entry* wim_metadata_lookup_table_entry(WIMStruct *w) { - return w->image_metadata[w->current_image - 1].lookup_table_entry; + return w->image_metadata[w->current_image - 1].metadata_lte; } /* Nonzero if a struct resource_entry indicates a compressed resource. */ @@ -317,17 +320,20 @@ static inline struct image_metadata *wim_get_current_image_metadata(WIMStruct *w return &w->image_metadata[w->current_image - 1]; } -static inline bool wim_current_image_is_modified(const WIMStruct *w) -{ - return w->image_metadata[w->current_image - 1].modified; -} - /* Prints a hash code field. */ static inline void print_hash(const u8 hash[]) { print_byte_field(hash, WIM_HASH_SIZE); } +/* hardlink.c */ + +struct link_group_table *new_link_group_table(u64 capacity); +int link_group_table_insert(struct dentry *dentry, + struct link_group_table *table); +void free_link_group_table(struct link_group_table *table); +u64 assign_link_groups(struct link_group_table *table); + /* header.c */ extern int read_header(FILE *fp, struct wim_header *hdr, int split_ok); @@ -340,6 +346,9 @@ extern int write_integrity_table(FILE *out, u64 end_header_offset, int show_progress); extern int check_wim_integrity(WIMStruct *w, int show_progress, int *status); +/* modify.c */ +extern void destroy_image_metadata(struct image_metadata *imd, + struct lookup_table *lt); /* resource.c */ extern const u8 *get_resource_entry(const u8 *p, struct resource_entry *entry); @@ -363,24 +372,22 @@ extern int extract_full_resource_to_fd(WIMStruct *w, const struct resource_entry *entry, int fd); -extern int read_metadata_resource(FILE *fp, - const struct resource_entry *metadata, - int wim_ctype, +extern int read_metadata_resource(FILE *fp, int wim_ctype, struct image_metadata *image_metadata); extern int resource_compression_type(int wim_ctype, int reshdr_flags); static inline int read_full_resource(FILE *fp, u64 resource_size, - u64 resource_original_size, - u64 resource_offset, - int resource_ctype, void *contents_ret) + u64 resource_original_size, + u64 resource_offset, + int resource_ctype, void *contents_ret) { return read_resource(fp, resource_size, resource_original_size, resource_offset, resource_ctype, resource_original_size, 0, contents_ret); } -extern int write_file_resource(struct dentry *dentry, void *wim_p); +extern int write_dentry_resources(struct dentry *dentry, void *wim_p); extern int copy_resource(struct lookup_table_entry *lte, void *w); extern int copy_between_files(FILE *in, off_t in_offset, FILE *out, size_t len); extern int write_resource_from_memory(const u8 resource[], int out_ctype, @@ -388,14 +395,20 @@ extern int write_resource_from_memory(const u8 resource[], int out_ctype, u64 *resource_size_ret); extern int write_metadata_resource(WIMStruct *w); -#ifdef ENABLE_SECURITY_DATA + +/* security.c */ int read_security_data(const u8 metadata_resource[], u64 metadata_resource_len, struct wim_security_data **sd_p); void print_security_data(const struct wim_security_data *sd); u8 *write_security_data(const struct wim_security_data *sd, u8 *p); void free_security_data(struct wim_security_data *sd); -#endif + +/* symlink.c */ +ssize_t dentry_readlink(const struct dentry *dentry, char *buf, size_t buf_len, + const WIMStruct *w); +extern void *make_symlink_reparse_data_buf(const char *symlink_target, + size_t *len_ret); /* wim.c */ extern WIMStruct *new_wim_struct();