#ifndef H_FSM #define H_FSM /** \ingroup payload * \file lib/fsm.h * File state machine to handle a payload within an rpm package. */ #include extern int _fsm_debug; /** */ #define FSM_VERBOSE 0x8000 #define FSM_INTERNAL 0x4000 #define FSM_SYSCALL 0x2000 #define FSM_DEAD 0x1000 #define _fv(_a) ((_a) | FSM_VERBOSE) #define _fi(_a) ((_a) | FSM_INTERNAL) #define _fs(_a) ((_a) | (FSM_INTERNAL | FSM_SYSCALL)) #define _fd(_a) ((_a) | (FSM_INTERNAL | FSM_DEAD)) typedef enum fileStage_e { FSM_UNKNOWN = 0, FSM_INIT = _fd(1), FSM_PRE = _fd(2), FSM_PROCESS = _fv(3), FSM_POST = _fd(4), FSM_UNDO = 5, FSM_FINI = 6, FSM_PKGINSTALL = _fd(7), FSM_PKGERASE = _fd(8), FSM_PKGBUILD = _fd(9), FSM_PKGCOMMIT = _fd(10), FSM_PKGUNDO = _fd(11), FSM_CREATE = _fd(17), FSM_MAP = _fd(18), FSM_MKDIRS = _fi(19), FSM_RMDIRS = _fi(20), FSM_MKLINKS = _fi(21), FSM_NOTIFY = _fd(22), FSM_DESTROY = _fd(23), FSM_VERIFY = _fd(24), FSM_COMMIT = _fd(25), FSM_UNLINK = _fs(33), FSM_RENAME = _fs(34), FSM_MKDIR = _fs(35), FSM_RMDIR = _fs(36), FSM_LSETFCON= _fs(39), FSM_CHOWN = _fs(40), FSM_LCHOWN = _fs(41), FSM_CHMOD = _fs(42), FSM_UTIME = _fs(43), FSM_SYMLINK = _fs(44), FSM_LINK = _fs(45), FSM_MKFIFO = _fs(46), FSM_MKNOD = _fs(47), FSM_LSTAT = _fs(48), FSM_STAT = _fs(49), FSM_READLINK= _fs(50), FSM_CHROOT = _fs(51), FSM_SETCAP = _fs(52), FSM_NEXT = _fd(65), FSM_EAT = _fd(66), FSM_POS = _fd(67), FSM_PAD = _fd(68), FSM_TRAILER = _fd(69), FSM_HREAD = _fd(70), FSM_HWRITE = _fd(71), FSM_DREAD = _fs(72), FSM_DWRITE = _fs(73), FSM_ROPEN = _fs(129), FSM_READ = _fs(130), FSM_RCLOSE = _fs(131), FSM_WOPEN = _fs(132), FSM_WRITE = _fs(133), FSM_WCLOSE = _fs(134) } fileStage; #undef _fv #undef _fi #undef _fs #undef _fd /** \ingroup payload */ typedef enum cpioMapFlags_e { CPIO_MAP_PATH = (1 << 0), CPIO_MAP_MODE = (1 << 1), CPIO_MAP_UID = (1 << 2), CPIO_MAP_GID = (1 << 3), CPIO_FOLLOW_SYMLINKS= (1 << 4), /*!< only for building. */ CPIO_MAP_ABSOLUTE = (1 << 5), CPIO_MAP_ADDDOT = (1 << 6), CPIO_ALL_HARDLINKS = (1 << 7), /*!< fail if hardlinks are missing. */ CPIO_MAP_TYPE = (1 << 8), /*!< only for building. */ CPIO_SBIT_CHECK = (1 << 9) } cpioMapFlags; typedef struct fsmIterator_s * FSMI_t; typedef struct fsm_s * FSM_t; typedef struct hardLink_s * hardLink_t; /** \ingroup payload * File name and stat information. */ struct fsm_s { char * path; /*!< Current file name. */ char * opath; /*!< Original file name. */ FD_t cfd; /*!< Payload file handle. */ FD_t rfd; /*!< read: File handle. */ char * rdbuf; /*!< read: Buffer. */ char * rdb; /*!< read: Buffer allocated. */ size_t rdsize; /*!< read: Buffer allocated size. */ size_t rdlen; /*!< read: Number of bytes requested.*/ size_t rdnb; /*!< read: Number of bytes returned. */ FD_t wfd; /*!< write: File handle. */ char * wrbuf; /*!< write: Buffer. */ char * wrb; /*!< write: Buffer allocated. */ size_t wrsize; /*!< write: Buffer allocated size. */ size_t wrlen; /*!< write: Number of bytes requested.*/ size_t wrnb; /*!< write: Number of bytes returned. */ FSMI_t iter; /*!< File iterator. */ int ix; /*!< Current file iterator index. */ hardLink_t links; /*!< Pending hard linked file(s). */ hardLink_t li; /*!< Current hard linked file(s). */ rpm_loff_t * archiveSize; /*!< Pointer to archive size. */ rpm_loff_t archivePos; /*!< Current archive position. */ rpm_loff_t cpioPos; char ** failedFile; /*!< First file name that failed. */ const char * subdir; /*!< Current file sub-directory. */ const char * osuffix; /*!< Old, preserved, file suffix. */ const char * nsuffix; /*!< New, created, file suffix. */ const char * suffix; /*!< Current file suffix. */ char sufbuf[64]; /* XXX eliminate */ short * dnlx; /*!< Last dirpath verified indexes. */ char * ldn; /*!< Last dirpath verified. */ int ldnlen; /*!< Last dirpath current length. */ int ldnalloc; /*!< Last dirpath allocated length. */ int postpone; /*!< Skip remaining stages? */ int diskchecked; /*!< Has stat(2) been performed? */ int exists; /*!< Does current file exist on disk? */ int mkdirsdone; /*!< Have "orphan" dirs been created? */ int rc; /*!< External file stage return code. */ int commit; /*!< Commit synchronously? */ cpioMapFlags mapFlags; /*!< Bit(s) to control mapping. */ const char * dirName; /*!< File directory name. */ const char * baseName; /*!< File base name. */ const unsigned char * digest; /*!< Binary digest (NULL disables). */ security_context_t fcontext;/*!< File security context (NULL disables). */ void *fcaps; /*!< File capabilities */ pgpHashAlgo digestalgo; /*!< File digest algorithm */ unsigned fflags; /*!< File flags. */ rpmFileAction action; /*!< File disposition. */ fileStage goal; /*!< Package state machine goal. */ fileStage stage; /*!< External file stage. */ fileStage nstage; /*!< Next file stage. */ struct stat sb; /*!< Current file stat(2) info. */ struct stat osb; /*!< Original file stat(2) info. */ }; #ifdef __cplusplus extern "C" { #endif /** * Create file state machine instance. * @param mapflags CPIO map flags to use * @return file state machine */ RPM_GNUC_INTERNAL FSM_t newFSM(cpioMapFlags mapflags); /** * Destroy file state machine instance. * @param fsm file state machine * @return always NULL */ RPM_GNUC_INTERNAL FSM_t freeFSM(FSM_t fsm); /** * Load external data into file state machine. * @param fsm file state machine * @param goal * @param ts transaction set * @param fi transaction element file info * @param cfd * @retval archiveSize pointer to archive size * @retval failedFile pointer to first file name that failed (malloced) * @return 0 on success */ int fsmSetup(FSM_t fsm, fileStage goal, rpmts ts, rpmte te, rpmfi fi, FD_t cfd, rpm_loff_t * archiveSize, char ** failedFile); /** * Clean file state machine. * @param fsm file state machine * @return 0 on success */ int fsmTeardown(FSM_t fsm); /** * File state machine driver. * @param fsm file state machine * @param nstage next stage * @return 0 on success */ RPM_GNUC_INTERNAL int fsmNext(FSM_t fsm, fileStage nstage); #ifdef __cplusplus } #endif #endif /* H_FSM */