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contrib/rpm/usr/include/rpm/rpmts.h

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#ifndef H_RPMTS
#define H_RPMTS

/** \ingroup rpmts
 * \file lib/rpmts.h
 * Structures and prototypes used for an "rpmts" transaction set.
 */

#include <sys/types.h>

#include <rpm/rpmtypes.h>
#include <rpm/rpmte.h>
#include <rpm/rpmps.h>
#include <rpm/rpmsw.h>
#include <rpm/rpmpgp.h>
#include <rpm/rpmfi.h>
#include <rpm/rpmcallback.h>

#ifdef __cplusplus
extern "C" {
#endif

extern int _rpmts_stats;

/** \ingroup rpmts
 * Bit(s) to control rpmtsRun() operation.
 */
enum rpmtransFlags_e {
    RPMTRANS_FLAG_NONE        = 0,
    RPMTRANS_FLAG_TEST        = (1 <<  0),    /*!< from --test */
    RPMTRANS_FLAG_BUILD_PROBS    = (1 <<  1),    /*!< don't process payload */
    RPMTRANS_FLAG_NOSCRIPTS    = (1 <<  2),    /*!< from --noscripts */
    RPMTRANS_FLAG_JUSTDB    = (1 <<  3),    /*!< from --justdb */
    RPMTRANS_FLAG_NOTRIGGERS    = (1 <<  4),    /*!< from --notriggers */
    RPMTRANS_FLAG_NODOCS    = (1 <<  5),    /*!< from --excludedocs */
    RPMTRANS_FLAG_ALLFILES    = (1 <<  6),    /*!< from --allfiles */
    /* bit 7 unused */
    RPMTRANS_FLAG_NOCONTEXTS    = (1 <<  8),    /*!< from --nocontexts */
    /* bits 9-15 unused */
    RPMTRANS_FLAG_NOTRIGGERPREIN= (1 << 16),    /*!< from --notriggerprein */
    RPMTRANS_FLAG_NOPRE        = (1 << 17),    /*!< from --nopre */
    RPMTRANS_FLAG_NOPOST    = (1 << 18),    /*!< from --nopost */
    RPMTRANS_FLAG_NOTRIGGERIN    = (1 << 19),    /*!< from --notriggerin */
    RPMTRANS_FLAG_NOTRIGGERUN    = (1 << 20),    /*!< from --notriggerun */
    RPMTRANS_FLAG_NOPREUN    = (1 << 21),    /*!< from --nopreun */
    RPMTRANS_FLAG_NOPOSTUN    = (1 << 22),    /*!< from --nopostun */
    RPMTRANS_FLAG_NOTRIGGERPOSTUN = (1 << 23),    /*!< from --notriggerpostun */
    /* bits 24-25 unused */
    RPMTRANS_FLAG_NOCOLLECTIONS    = (1 << 26),    /*!< from --nocollections */
    RPMTRANS_FLAG_NOMD5        = (1 << 27),    /*!< from --nomd5 */
    RPMTRANS_FLAG_NOFILEDIGEST    = (1 << 27),    /*!< from --nofiledigest (alias to --nomd5) */
    /* bits 28-29 unused */
    RPMTRANS_FLAG_NOCONFIGS    = (1 << 30),    /*!< from --noconfigs */
    RPMTRANS_FLAG_DEPLOOPS    = (1 << 31)    /*!< from --deploops */
};

typedef rpmFlags rpmtransFlags;

#define    _noTransScripts        \
  ( RPMTRANS_FLAG_NOPRE |    \
    RPMTRANS_FLAG_NOPOST |    \
    RPMTRANS_FLAG_NOPREUN |    \
    RPMTRANS_FLAG_NOPOSTUN    \
  )

#define    _noTransTriggers    \
  ( RPMTRANS_FLAG_NOTRIGGERPREIN | \
    RPMTRANS_FLAG_NOTRIGGERIN |    \
    RPMTRANS_FLAG_NOTRIGGERUN |    \
    RPMTRANS_FLAG_NOTRIGGERPOSTUN \
  )

/* Avoid unnecessary breakage for stuff referring to these unused flags */
#define RPMTRANS_FLAG_NOPAYLOAD 0
#define RPMTRANS_FLAG_APPLYONLY 0
#define RPMTRANS_FLAG_KEEPOBSOLETE 0
#define RPMTRANS_FLAG_DIRSTASH 0
#define RPMTRANS_FLAG_REPACKAGE 0
#define RPMTRANS_FLAG_PKGCOMMIT 0
#define RPMTRANS_FLAG_PKGUNDO 0
#define RPMTRANS_FLAG_COMMIT 0
#define RPMTRANS_FLAG_UNDO 0
#define RPMTRANS_FLAG_REVERSE 0
#define RPMTRANS_FLAG_NOSUGGEST 0
#define RPMTRANS_FLAG_ADDINDEPS 0

/** \ingroup rpmts
 * Bit(s) to control digest and signature verification.
 */
enum rpmVSFlags_e {
    RPMVSF_DEFAULT    = 0,
    RPMVSF_NOHDRCHK    = (1 <<  0),
    RPMVSF_NEEDPAYLOAD    = (1 <<  1),
    /* bit(s) 2-7 unused */
    RPMVSF_NOSHA1HEADER    = (1 <<  8),
    RPMVSF_NOMD5HEADER    = (1 <<  9),    /* unimplemented */
    RPMVSF_NODSAHEADER    = (1 << 10),
    RPMVSF_NORSAHEADER    = (1 << 11),    /* unimplemented */
    /* bit(s) 12-15 unused */
    RPMVSF_NOSHA1    = (1 << 16),    /* unimplemented */
    RPMVSF_NOMD5    = (1 << 17),
    RPMVSF_NODSA    = (1 << 18),
    RPMVSF_NORSA    = (1 << 19)
    /* bit(s) 16-31 unused */
};

typedef rpmFlags rpmVSFlags;

#define    _RPMVSF_NODIGESTS    \
  ( RPMVSF_NOSHA1HEADER |    \
    RPMVSF_NOMD5HEADER |    \
    RPMVSF_NOSHA1 |        \
    RPMVSF_NOMD5 )

#define    _RPMVSF_NOSIGNATURES    \
  ( RPMVSF_NODSAHEADER |    \
    RPMVSF_NORSAHEADER |    \
    RPMVSF_NODSA |        \
    RPMVSF_NORSA )

#define    _RPMVSF_NOHEADER    \
  ( RPMVSF_NOSHA1HEADER |    \
    RPMVSF_NOMD5HEADER |    \
    RPMVSF_NODSAHEADER |    \
    RPMVSF_NORSAHEADER )

#define    _RPMVSF_NOPAYLOAD    \
  ( RPMVSF_NOSHA1 |        \
    RPMVSF_NOMD5 |        \
    RPMVSF_NODSA |        \
    RPMVSF_NORSA )

/** \ingroup rpmts
 * Indices for timestamps.
 */
typedef    enum rpmtsOpX_e {
    RPMTS_OP_TOTAL        =  0,
    RPMTS_OP_CHECK        =  1,
    RPMTS_OP_ORDER        =  2,
    RPMTS_OP_FINGERPRINT    =  3,
    RPMTS_OP_INSTALL        =  5,
    RPMTS_OP_ERASE        =  6,
    RPMTS_OP_SCRIPTLETS        =  7,
    RPMTS_OP_COMPRESS        =  8,
    RPMTS_OP_UNCOMPRESS        =  9,
    RPMTS_OP_DIGEST        = 10,
    RPMTS_OP_SIGNATURE        = 11,
    RPMTS_OP_DBADD        = 12,
    RPMTS_OP_DBREMOVE        = 13,
    RPMTS_OP_DBGET        = 14,
    RPMTS_OP_DBPUT        = 15,
    RPMTS_OP_DBDEL        = 16,
    RPMTS_OP_MAX        = 17
} rpmtsOpX;

/** \ingroup rpmts
 * Perform dependency resolution on the transaction set.
 *
 * Any problems found by rpmtsCheck() can be examined by retrieving the 
 * problem set with rpmtsProblems(), success here only means that
 * the resolution was successfully attempted for all packages in the set.
 *
 * @param ts        transaction set
 * @return        0 on success
 */
int rpmtsCheck(rpmts ts);

/** \ingroup rpmts
 * Determine package order in a transaction set according to dependencies.
 *
 * Order packages, returning error if circular dependencies cannot be
 * eliminated by removing Requires's from the loop(s). Only dependencies from
 * added or removed packages are used to determine ordering using a
 * topological sort (Knuth vol. 1, p. 262). Use rpmtsCheck() to verify
 * that all dependencies can be resolved.
 *
 * The final order ends up as installed packages followed by removed packages,
 * with packages removed for upgrades immediately following the new package
 * to be installed.
 *
 * @param ts        transaction set
 * @return        no. of (added) packages that could not be ordered
 */
int rpmtsOrder(rpmts ts);

/** \ingroup rpmts
 * Process all package elements in a transaction set.  Before calling
 * rpmtsRun be sure to have:
 *
 *    - setup the rpm root dir via rpmtsSetRoot().
 *    - setup the rpm notify callback via rpmtsSetNotifyCallback().
 *    - setup the rpm transaction flags via rpmtsSetFlags().
 * 
 * Additionally, though not required you may want to:
 *
 *    - setup the rpm verify signature flags via rpmtsSetVSFlags().
 *       
 * @param ts        transaction set
 * @param okProbs    unused
 * @param ignoreSet    bits to filter problem types
 * @return        0 on success, -1 on error, >0 with newProbs set
 */
int rpmtsRun(rpmts ts, rpmps okProbs, rpmprobFilterFlags ignoreSet);

/** \ingroup rpmts
 * Reference a transaction set instance.
 * @param ts        transaction set
 * @return        new transaction set reference
 */
rpmts rpmtsLink (rpmts ts);

/** \ingroup rpmts
 * Close the database used by the transaction.
 * @param ts        transaction set
 * @return        0 on success
 */
int rpmtsCloseDB(rpmts ts);

/** \ingroup rpmts
 * Open the database used by the transaction.
 * @param ts        transaction set
 * @param dbmode    O_RDONLY or O_RDWR
 * @return        0 on success
 */
int rpmtsOpenDB(rpmts ts, int dbmode);

/** \ingroup rpmts
 * Initialize the database used by the transaction.
 * @deprecated An explicit rpmdbInit() is almost never needed.
 * @param ts        transaction set
 * @param dbmode    O_RDONLY or O_RDWR
 * @return        0 on success
 */
int rpmtsInitDB(rpmts ts, int dbmode);

/** \ingroup rpmts
 * Return the transaction database mode
 * @param ts        transaction set
 * @return        O_RDONLY, O_RDWR or -1 (lazy opens disabled)
 */
int rpmtsGetDBMode(rpmts ts);

/** \ingroup rpmts
 * Set the transaction database mode. Only permitted when when backing
 * database hasn't been opened yet (ie rpmtsGetRdb(ts) == NULL)
 * @param ts        transaction set
 * @param dbmode    O_RDONLY, O_RDWR or -1 (disable lazy opens)
 * @return        0 on success, 1 on error 
 */
int rpmtsSetDBMode(rpmts ts, int dbmode);

/** \ingroup rpmts
 * Rebuild the database used by the transaction.
 * @param ts        transaction set
 * @return        0 on success
 */
int rpmtsRebuildDB(rpmts ts);

/** \ingroup rpmts
 * Verify the database used by the transaction.
 * @param ts        transaction set
 * @return        0 on success
 */
int rpmtsVerifyDB(rpmts ts);

/** \ingroup rpmts
 * Return transaction database iterator.
 * @param ts        transaction set
 * @param rpmtag    database index tag
 * @param keyp        key data (NULL for sequential access)
 * @param keylen    key data length (0 will use strlen(keyp))
 * @return        NULL on failure
 */
rpmdbMatchIterator rpmtsInitIterator(const rpmts ts, rpmDbiTagVal rpmtag,
            const void * keyp, size_t keylen);

/** \ingroup rpmts
 * Import public key packet(s).
 * @todo Implicit --update policy for gpg-pubkey headers.
 * @param ts            transaction set
 * @param pkt           pgp pubkey packet(s)
 * @param pktlen        pgp pubkey length
 * @return              RPMRC_OK/RPMRC_FAIL
 */
rpmRC rpmtsImportPubkey(rpmts ts, const unsigned char * pkt, size_t pktlen);

/** \ingroup rpmts
 * Retrieve handle for keyring used for this transaction set
 * @param ts            transaction set
 * @param autoload    load default keyring if keyring is not set
 * @return              keyring handle (or NULL)
 */
rpmKeyring rpmtsGetKeyring(rpmts ts, int autoload);

/** \ingroup rpmts
 * Set keyring to use for this transaction set.
 * Keyring can be only changed while the underlying rpm database is not
 * yet open.
 * @param ts            transaction set
 * @param keyring    keyring handle (NULL to free current keyring)
 * @return              0 on success, -1 on error
 */
int rpmtsSetKeyring(rpmts ts, rpmKeyring keyring);

/** \ingroup rpmts
 * Set dependency solver callback.
 * @param ts        transaction set
 * @param (*solve)    dependency solver callback
 * @param solveData    dependency solver callback data (opaque)
 * @return        0 on success
 */
int rpmtsSetSolveCallback(rpmts ts,
        int (*solve) (rpmts ts, rpmds ds, const void * data),
        const void * solveData);

/** \ingroup rpmts
 * Return current transaction set problems.
 * @param ts        transaction set
 * @return        current problem set (or NULL if no problems)
 */
rpmps rpmtsProblems(rpmts ts);

/** \ingroup rpmts
 * Clean current transaction problem set.
 * @param ts        transaction set
 */
void rpmtsCleanProblems(rpmts ts);

/** \ingroup rpmts
 * Free memory needed only for dependency checks and ordering.
 * @param ts        transaction set
 */
void rpmtsClean(rpmts ts);

/** \ingroup rpmts
 * Re-create an empty transaction set.
 * @param ts        transaction set
 */
void rpmtsEmpty(rpmts ts);

/** \ingroup rpmts
 * Destroy transaction set, closing the database as well.
 * @param ts        transaction set
 * @return        NULL always
 */
rpmts rpmtsFree(rpmts ts);

/** \ingroup rpmts
 * Get verify signatures flag(s).
 * @param ts        transaction set
 * @return        verify signatures flags
 */
rpmVSFlags rpmtsVSFlags(rpmts ts);

/** \ingroup rpmts
 * Set verify signatures flag(s).
 * @param ts        transaction set
 * @param vsflags    new verify signatures flags
 * @return        previous value
 */
rpmVSFlags rpmtsSetVSFlags(rpmts ts, rpmVSFlags vsflags);

/** \ingroup rpmts
 * Get transaction rootDir, i.e. path to chroot(2).
 * @param ts        transaction set
 * @return        transaction rootDir
 */
const char * rpmtsRootDir(rpmts ts);

/** \ingroup rpmts
 * Set transaction rootDir, i.e. path to chroot(2).
 * @param ts        transaction set
 * @param rootDir    new transaction rootDir (or NULL)
 * @return        0 on success, -1 on error (invalid rootDir)
 */
int rpmtsSetRootDir(rpmts ts, const char * rootDir);

/** \ingroup rpmts
 * Get transaction script file handle, i.e. stdout/stderr on scriptlet execution
 * @param ts        transaction set
 * @return        transaction script file handle
 */
FD_t rpmtsScriptFd(rpmts ts);

/** \ingroup rpmts
 * Set transaction script file handle, i.e. stdout/stderr on scriptlet execution
 * @param ts        transaction set
 * @param scriptFd    new script file handle (or NULL)
 */
void rpmtsSetScriptFd(rpmts ts, FD_t scriptFd);

/** \ingroup rpmts
 * Get transaction id, i.e. transaction time stamp.
 * @param ts        transaction set
 * @return        transaction id
 */
rpm_tid_t rpmtsGetTid(rpmts ts);

/** \ingroup rpmts
 * Set transaction id, i.e. transaction time stamp.
 * @param ts        transaction set
 * @param tid        new transaction id
 * @return        previous transaction id
 */
rpm_tid_t rpmtsSetTid(rpmts ts, rpm_tid_t tid);

/** \ingroup rpmts
 * Get transaction set database handle.
 * @param ts        transaction set
 * @return        transaction database handle
 */
rpmdb rpmtsGetRdb(rpmts ts);

/** \ingroup rpmts
 * Perform transaction progress notify callback.
 * @param ts        transaction set
 * @param te        current transaction element
 * @param what        type of call back
 * @param amount    current value
 * @param total        final value
 * @return        callback dependent pointer
 */
void * rpmtsNotify(rpmts ts, rpmte te,
                rpmCallbackType what, rpm_loff_t amount, rpm_loff_t total);

/** \ingroup rpmts
 * Return number of (ordered) transaction set elements.
 * @param ts        transaction set
 * @return        no. of transaction set elements
 */
int rpmtsNElements(rpmts ts);

/** \ingroup rpmts
 * Return (ordered) transaction set element.
 * @param ts        transaction set
 * @param ix        transaction element index
 * @return        transaction element (or NULL)
 */
rpmte rpmtsElement(rpmts ts, int ix);

/** \ingroup rpmts
 * Get problem ignore bit mask, i.e. bits to filter encountered problems.
 * @param ts        transaction set
 * @return        ignore bit mask
 */
rpmprobFilterFlags rpmtsFilterFlags(rpmts ts);

/** \ingroup rpmts
 * Get transaction flags, i.e. bits that control rpmtsRun().
 * @param ts        transaction set
 * @return        transaction flags
 */
rpmtransFlags rpmtsFlags(rpmts ts);

/** \ingroup rpmts
 * Set transaction flags, i.e. bits that control rpmtsRun().
 * @param ts        transaction set
 * @param transFlags    new transaction flags
 * @return        previous transaction flags
 */
rpmtransFlags rpmtsSetFlags(rpmts ts, rpmtransFlags transFlags);

/** \ingroup rpmts
 * Retrieve color bits of transaction set.
 * @param ts        transaction set
 * @return        color bits
 */
rpm_color_t rpmtsColor(rpmts ts);

/** \ingroup rpmts
 * Retrieve prefered file color
 * @param ts        transaction set
 * @return        color bits
 */
rpm_color_t rpmtsPrefColor(rpmts ts);

/** \ingroup rpmts
 * Set color bits of transaction set.
 * @param ts        transaction set
 * @param color        new color bits
 * @return        previous color bits
 */
rpm_color_t rpmtsSetColor(rpmts ts, rpm_color_t color);

/** \ingroup rpmts
 * Set prefered file color
 * @param ts        transaction set
 * @param color        new color bits
 * @return        previous color bits
 */
rpm_color_t rpmtsSetPrefColor(rpmts ts, rpm_color_t color);

/** \ingroup rpmts
 * Retrieve operation timestamp from a transaction set.
 * @param ts        transaction set
 * @param opx        operation timestamp index
 * @return        pointer to operation timestamp.
 */
rpmop rpmtsOp(rpmts ts, rpmtsOpX opx);

/** \ingroup rpmts
 * Get the plugins associated with a transaction set
 * @param ts        transaction set
 * @return        plugins
 */
rpmPlugins rpmtsPlugins(rpmts ts);

/** \ingroup rpmts
 * Set transaction notify callback function and argument.
 *
 * @warning This call must be made before rpmtsRun() for
 *    install/upgrade/freshen to function correctly.
 *
 * @param ts        transaction set
 * @param notify    progress callback
 * @param notifyData    progress callback private data
 * @return        0 on success
 */
int rpmtsSetNotifyCallback(rpmts ts,
        rpmCallbackFunction notify,
        rpmCallbackData notifyData);

/** \ingroup rpmts
 * Create an empty transaction set.
 * @return        new transaction set
 */
rpmts rpmtsCreate(void);

/** \ingroup rpmts
 * Add package to be installed to transaction set.
 *
 * The transaction set is checked for duplicate package names.
 * If found, the package with the "newest" EVR will be replaced.
 *
 * @param ts        transaction set
 * @param h        header
 * @param key        package retrieval key (e.g. file name)
 * @param upgrade    is package being upgraded?
 * @param relocs    package file relocations
 * @return        0 on success, 1 on I/O error, 2 needs capabilities
 */
int rpmtsAddInstallElement(rpmts ts, Header h,
        const fnpyKey key, int upgrade,
        rpmRelocation * relocs);

/** \ingroup rpmts
 * Add package to be erased to transaction set.
 * @param ts        transaction set
 * @param h        header
 * @param dboffset    ununsed
 * @return        0 on success, 1 on error (not installed)
 */
int rpmtsAddEraseElement(rpmts ts, Header h, int dboffset);

/** \ingroup rpmte
 * Destroy transaction element iterator.
 * @param tsi        transaction element iterator
 * @return        NULL always
 */
rpmtsi rpmtsiFree(rpmtsi tsi);

/** \ingroup rpmte
 * Create transaction element iterator.
 * @param ts        transaction set
 * @return        transaction element iterator
 */
rpmtsi rpmtsiInit(rpmts ts);

/** \ingroup rpmte
 * Return next transaction element of type.
 * @param tsi        transaction element iterator
 * @param types        transaction element type selector (0 for any)
 * @return        next transaction element of type, NULL on termination
 */
rpmte rpmtsiNext(rpmtsi tsi, rpmElementTypes types);

#ifdef __cplusplus
}
#endif


#endif    /* H_RPMTS */