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#ifndef H_FSM
#define H_FSM
/** \ingroup payload
* \file lib/fsm.h
* File state machine to handle a payload within an rpm package.
*/
#include <rpm/rpmfi.h>
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 {
const char * path; /*!< Current file name. */
const 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. */
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 char * digest; /*!< Binary checksum (NULL disables). */
security_context_t fcontext;/*!< File security context (NULL disables). */
cap_t fcaps; /*!< File capabilities */
pgpHashAlgo digestalgo; /*!< File checksum 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,
const rpmts ts,
const 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 */
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