1 #ifndef _IPXE_CPIO_H 2 #define _IPXE_CPIO_H 3 4 /** @file 5 * 6 * CPIO archives 7 * 8 */ 9 10 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); 11 12 /** A CPIO archive header 13 * 14 * All field are hexadecimal ASCII numbers padded with '0' on the 15 * left to the full width of the field. 16 */ 17 struct cpio_header { 18 /** The string "070701" or "070702" */ 19 char c_magic[6]; 20 /** File inode number */ 21 char c_ino[8]; 22 /** File mode and permissions */ 23 char c_mode[8]; 24 /** File uid */ 25 char c_uid[8]; 26 /** File gid */ 27 char c_gid[8]; 28 /** Number of links */ 29 char c_nlink[8]; 30 /** Modification time */ 31 char c_mtime[8]; 32 /** Size of data field */ 33 char c_filesize[8]; 34 /** Major part of file device number */ 35 char c_maj[8]; 36 /** Minor part of file device number */ 37 char c_min[8]; 38 /** Major part of device node reference */ 39 char c_rmaj[8]; 40 /** Minor part of device node reference */ 41 char c_rmin[8]; 42 /** Length of filename, including final NUL */ 43 char c_namesize[8]; 44 /** Checksum of data field if c_magic is 070702, othersize zero */ 45 char c_chksum[8]; 46 } __attribute__ (( packed )); 47 48 /** CPIO magic */ 49 #define CPIO_MAGIC "070701" 50 51 extern void cpio_set_field ( char *field, unsigned long value ); 52 53 #endif /* _IPXE_CPIO_H */ 54