rpm  5.2.1
Data Structures | Defines | Typedefs | Functions | Variables
rpmio/iosm.c File Reference

File state machine to handle a payload from a package. More...

#include "system.h"
#include <rpmio_internal.h>
#include <rpmcb.h>
#include <ugid.h>
#include <rpmsq.h>
#include <rpmsw.h>
#include "../rpmdb/rpmtag.h"
#include <iosm.h>
#include "cpio.h"
#include "tar.h"
#include "ar.h"
#include "../lib/rpmfi.h"
#include "debug.h"
Include dependency graph for iosm.c:

Go to the source code of this file.

Data Structures

struct  dnli_s
 Directory name iterator. More...

Defines

#define _IOSM_INTERNAL
#define iosmUNSAFE   iosmStage
#define _RPMFI_INTERNAL
#define _RPMFI_NOMETHODS
#define alloca_strdup(_s)   strcpy(alloca(strlen(_s)+1), (_s))
#define _IOSM_DEBUG   0
#define SUFFIX_RPMORIG   ".rpmorig"
#define SUFFIX_RPMSAVE   ".rpmsave"
#define SUFFIX_RPMNEW   ".rpmnew"
#define IS_DEV_LOG(_x)
#define _fafilter(_a)
#define IOSM_SKIPPING(_a)   ((_a) == FA_SKIP || (_a) == FA_SKIPNSTATE || (_a) == FA_SKIPNETSHARED || (_a) == FA_SKIPCOLOR)

Typedefs

typedef struct rpmts_s * rpmts
typedef struct rpmte_s * rpmte
typedef iosmMapFlags cpioMapFlags
typedef struct rpmds_s * rpmds
typedef struct rpmRelocation_srpmRelocation
typedef struct rpmdb_s * rpmdb
typedef struct rpmmi_srpmmi
typedef struct rpmPRCO_s * rpmPRCO
typedef struct Spec_sSpec
typedef struct dnli_sDNLI_t
 Directory name iterator.

Functions

void * iosmGetFi (const IOSM_t iosm)
static const char * iosmFsPath (const IOSM_t iosm, const struct stat *st, const char *subdir, const char *suffix)
 Build path to file from file info, ornamented with subdir and suffix.
static void * mapFreeIterator (void *p)
 Destroy file info iterator.
static void * mapInitIterator (rpmfi fi, int reverse)
 Create file info iterator.
static int mapNextIterator (void *a)
 Return next index into file info.
static int iosmStrCmp (const void *a, const void *b)
static int mapFind (IOSMI_t iter, const char *iosmPath)
 Locate archive path in file info.
static void * dnlFreeIterator (const void *a)
 Destroy directory name iterator.
static int dnlCount (const DNLI_t dnli)
static int dnlIndex (const DNLI_t dnli)
static void * dnlInitIterator (const IOSM_t fsm, int reverse)
 Create directory name iterator.
static const char * dnlNextIterator (DNLI_t dnli)
 Return next directory name (from file info).
int iosmNext (IOSM_t iosm, iosmFileStage nstage)
 File state machine driver.
static int saveHardLink (IOSM_t fsm)
 Save hard link in chain.
static void * freeHardLink (struct hardLink_s *li)
 Destroy set of hard links.
IOSM_t newIOSM (void)
IOSM_t freeIOSM (IOSM_t iosm)
static int arSetup (IOSM_t iosm, rpmfi fi)
int iosmSetup (IOSM_t iosm, iosmFileStage goal, const char *afmt, const void *_ts, const void *_fi, FD_t cfd, unsigned int *archiveSize, const char **failedFile)
 Load external data into I/O state machine.
int iosmTeardown (IOSM_t iosm)
 Clean I/O state machine.
static int iosmMapFContext (IOSM_t iosm)
int iosmMapPath (IOSM_t iosm)
int iosmMapAttrs (IOSM_t iosm)
static int extractRegular (IOSM_t fsm)
 Create file from payload stream.
static int writeFile (IOSM_t fsm, int writeData)
 Write next item to payload stream.
static int writeLinkedFile (IOSM_t fsm)
 Write set of linked files to payload stream.
static int iosmMakeLinks (IOSM_t iosm)
 Create pending hard links to existing file.
static int iosmCommitLinks (IOSM_t iosm)
 Commit hard linked file set atomically.
static int iosmRmdirs (IOSM_t iosm)
 Remove (if created) directories not explicitly included in package.
static int iosmMkdirs (IOSM_t iosm)
 Create (if necessary) directories not explicitly included in package.
int iosmStage (IOSM_t iosm, iosmFileStage stage)
 File state machine driver.
int iosmFileActionSkipped (iosmFileAction action)
 Is the file going to be skipped?
const char * iosmFileActionString (iosmFileAction a)
 Return formatted string representation of file disposition.
const char * iosmFileStageString (iosmFileStage a)
 Return formatted string representation of file stages.
char * iosmStrerror (int rc)
 Return formatted error message on payload handling failure.

Variables

int _iosm_debug = 0
int _iosm_threads = 0
int(* _iosmNext )(IOSM_t iosm, iosmFileStage nstage) = &iosmNext

Detailed Description

File state machine to handle a payload from a package.

Definition in file iosm.c.


Define Documentation

#define _fafilter (   _a)
Value:
(!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \
        ? iosmFileActionString(_a) : "")
#define _IOSM_DEBUG   0

Definition at line 65 of file iosm.c.

#define _IOSM_INTERNAL

Definition at line 20 of file iosm.c.

#define _RPMFI_INTERNAL

Definition at line 29 of file iosm.c.

Definition at line 30 of file iosm.c.

#define alloca_strdup (   _s)    strcpy(alloca(strlen(_s)+1), (_s))

Definition at line 63 of file iosm.c.

#define IOSM_SKIPPING (   _a)    ((_a) == FA_SKIP || (_a) == FA_SKIPNSTATE || (_a) == FA_SKIPNETSHARED || (_a) == FA_SKIPCOLOR)

Definition at line 2675 of file iosm.c.

Referenced by iosmFileActionSkipped().

#define iosmUNSAFE   iosmStage

Definition at line 22 of file iosm.c.

Referenced by iosmMakeLinks(), iosmMkdirs(), iosmSetup(), iosmStage(), and iosmTeardown().

#define IS_DEV_LOG (   _x)
Value:
((_x) != NULL && strlen(_x) >= (sizeof("/dev/log")-1) && \
        !strncmp((_x), "/dev/log", sizeof("/dev/log")-1) && \
        ((_x)[sizeof("/dev/log")-1] == '\0' || \
         (_x)[sizeof("/dev/log")-1] == ';'))

Definition at line 1641 of file iosm.c.

Referenced by iosmStage().

#define SUFFIX_RPMNEW   ".rpmnew"

Definition at line 99 of file iosm.c.

Referenced by iosmMapPath().

#define SUFFIX_RPMORIG   ".rpmorig"

Definition at line 97 of file iosm.c.

Referenced by iosmMapPath().

#define SUFFIX_RPMSAVE   ".rpmsave"

Definition at line 98 of file iosm.c.

Referenced by iosmMapPath().


Typedef Documentation

Definition at line 28 of file iosm.c.

typedef struct rpmdb_s* rpmdb

Definition at line 46 of file iosm.c.

typedef struct rpmds_s* rpmds

Definition at line 33 of file iosm.c.

typedef struct rpmmi_s* rpmmi

Definition at line 47 of file iosm.c.

typedef struct rpmPRCO_s* rpmPRCO

Definition at line 48 of file iosm.c.

typedef struct rpmRelocation_s* rpmRelocation

Definition at line 34 of file iosm.c.

typedef struct rpmte_s* rpmte

Definition at line 18 of file iosm.c.

typedef struct rpmts_s* rpmts

Definition at line 17 of file iosm.c.

typedef struct Spec_s* Spec

Definition at line 49 of file iosm.c.


Function Documentation

static int arSetup ( IOSM_t  iosm,
rpmfi  fi 
) [static]

Definition at line 587 of file iosm.c.

References rpmfiBN(), rpmfiInit(), rpmfiNext(), stpcpy(), urlPath(), and xmalloc().

Referenced by fsmSetup(), and iosmSetup().

IOSM_t freeIOSM ( IOSM_t  iosm)

Definition at line 571 of file iosm.c.

References _free(), freeHardLink(), and mapFreeIterator().

Is the file going to be skipped?

Parameters:
iosmI/O state machine
Returns:
Is file to be skipped?

Definition at line 2678 of file iosm.c.

References IOSM_SKIPPING.

Referenced by dnlInitIterator(), fsmCommitLinks(), fsmMakeLinks(), fsmStage(), handleInstInstalledFiles(), handleOverlappedFiles(), iosmCommitLinks(), iosmMakeLinks(), iosmStage(), rpmtsRun(), saveHardLink(), and skipFiles().

Return formatted string representation of file disposition.

Parameters:
afile dispostion
Returns:
formatted string

Definition at line 2683 of file iosm.c.

References FA_ALTNAME, FA_BACKUP, FA_COPYIN, FA_COPYOUT, FA_CREATE, FA_ERASE, FA_SAVE, FA_SKIP, FA_SKIPCOLOR, FA_SKIPNETSHARED, FA_SKIPNSTATE, and FA_UNKNOWN.

const char* iosmFileStageString ( iosmFileStage  a)
void* iosmGetFi ( const IOSM_t  iosm)

Definition at line 89 of file iosm.c.

Referenced by iosmMapAttrs(), iosmMapFContext(), iosmMapPath(), iosmMkdirs(), and iosmStage().

int iosmMapAttrs ( IOSM_t  iosm)
static int iosmMapFContext ( IOSM_t  iosm) [static]

Definition at line 826 of file iosm.c.

References iosmGetFi(), and matchpathcon.

Referenced by iosmStage().

int iosmMapPath ( IOSM_t  iosm)
static int iosmMkdirs ( IOSM_t  iosm) [static]

Create (if necessary) directories not explicitly included in package.

Parameters:
iosmfile state machine data
Returns:
0 on success

Definition at line 1476 of file iosm.c.

References _free(), D_, dc, dnlCount(), dnlFreeIterator(), dnlIndex(), dnlInitIterator(), dnlNextIterator(), IOSM_LSETFCON, IOSM_LSTAT, IOSM_MKDIR, iosmGetFi(), iosmNext(), iosmUNSAFE, matchpathcon, rpmlog(), RPMLOG_DEBUG, stpcpy(), urlPath(), xcalloc(), and xrealloc().

Referenced by iosmStage().

int iosmNext ( IOSM_t  iosm,
iosmFileStage  nstage 
)

File state machine driver.

Parameters:
iosmI/O state machine
nstagenext stage
Returns:
0 on success

Definition at line 452 of file iosm.c.

References iosmStage(), rpmsqJoin(), and rpmsqThread().

Referenced by iosmCommitLinks(), iosmMakeLinks(), iosmMkdirs(), iosmRmdirs(), iosmSetup(), and iosmStage().

static int iosmRmdirs ( IOSM_t  iosm) [static]

Remove (if created) directories not explicitly included in package.

Parameters:
iosmfile state machine data
Returns:
0 on success

Definition at line 1421 of file iosm.c.

References dc, dnlCount(), dnlFreeIterator(), dnlIndex(), dnlInitIterator(), dnlNextIterator(), IOSM_RMDIR, iosmNext(), and stpcpy().

Referenced by iosmStage().

int iosmSetup ( IOSM_t  iosm,
iosmFileStage  goal,
const char *  afmt,
const void *  _ts,
const void *  _fi,
FD_t  cfd,
unsigned int *  archiveSize,
const char **  failedFile 
)

Load external data into I/O state machine.

Parameters:
iosmI/O state machine
goal
afmtarchive format (NULL uses cpio)
_tstransaction set
_fitransaction element file info
cfdpayload descriptor
Return values:
archiveSizepointer to archive size
failedFilepointer to first file name that failed.
Returns:
0 on success

Definition at line 660 of file iosm.c.

References _iosm_debug, _iosm_threads, _iosmNext, _tsmask, arHeaderRead(), arHeaderWrite(), arSetup(), arTrailerWrite(), cpioHeaderRead(), cpioHeaderWrite(), cpioTrailerWrite(), FA_COPYOUT, fdGetCpioPos(), fdLink(), fdSetCpioPos(), IOSM_CREATE, IOSM_PKGBUILD, IOSM_PKGCOMMIT, IOSM_PKGERASE, IOSM_PKGINSTALL, iosmNext(), iosmUNSAFE, mapInitIterator(), RPMCALLBACK_INST_START, rpmteType(), RPMTRANS_FLAG_NOCONTEXTS, RPMTRANS_FLAG_NOFDIGESTS, rpmtsFlags(), rpmtsGetTid(), rpmtsLink(), rpmtsNotify(), TAR_BLOCK_SIZE, tarHeaderRead(), tarHeaderWrite(), tarTrailerWrite(), TR_ADDED, and TR_REMOVED.

int iosmStage ( IOSM_t  iosm,
iosmFileStage  stage 
)

File state machine driver.

Parameters:
iosmI/O state machine
stagenext stage
Returns:
0 on success

Definition at line 1648 of file iosm.c.

References _, _fafilter, _free(), alloca(), Chmod(), Chown(), CPIO_TRAILER, errno, extractRegular(), FA_ERASE, FA_UNKNOWN, Fclose(), fdGetCpioPos(), fdSetCpioPos(), FDSTAT_DIGEST, fdstat_op(), Ferror(), Fopen(), Fread(), freeHardLink(), Fwrite(), IOSM_ALL_HARDLINKS, IOSM_CHMOD, IOSM_CHOWN, IOSM_CHROOT, IOSM_COMMIT, IOSM_CREATE, IOSM_DEAD, IOSM_DESTROY, IOSM_DREAD, IOSM_DWRITE, IOSM_EAT, IOSM_FINI, IOSM_FOLLOW_SYMLINKS, IOSM_HREAD, IOSM_HWRITE, IOSM_INIT, IOSM_INTERNAL, IOSM_LCHOWN, IOSM_LINK, IOSM_LSETFCON, IOSM_LSTAT, IOSM_MAP, IOSM_MKDIR, IOSM_MKDIRS, IOSM_MKFIFO, IOSM_MKLINKS, IOSM_MKNOD, IOSM_NEXT, IOSM_NOTIFY, IOSM_PAD, IOSM_PAYLOAD_EXTRACT, IOSM_PAYLOAD_LIST, IOSM_PKGBUILD, IOSM_PKGCOMMIT, IOSM_PKGERASE, IOSM_PKGINSTALL, IOSM_POS, IOSM_POST, IOSM_PRE, IOSM_PROCESS, IOSM_RCLOSE, IOSM_READ, IOSM_READLINK, IOSM_RENAME, IOSM_RMDIR, IOSM_RMDIRS, IOSM_ROPEN, IOSM_SBIT_CHECK, IOSM_STAT, IOSM_SYMLINK, IOSM_SYSCALL, IOSM_TRAILER, IOSM_UNDO, IOSM_UNKNOWN, IOSM_UNLINK, IOSM_UTIME, IOSM_VERBOSE, IOSM_VERIFY, IOSM_WCLOSE, IOSM_WOPEN, IOSM_WRITE, iosmCommitLinks(), iosmFileActionSkipped(), iosmFileStageString(), iosmFsPath(), iosmGetFi(), iosmMakeLinks(), iosmMapAttrs(), iosmMapFContext(), iosmMapPath(), iosmMkdirs(), iosmNext(), iosmRmdirs(), iosmUNSAFE, IS_DEV_LOG, Lchown(), Link(), lsetfilecon, Lstat(), mapFind(), mapNextIterator(), Mkdir(), Mkfifo(), Mknod(), Readlink(), Rename(), Rmdir(), RPMCALLBACK_INST_PROGRESS, RPMFILE_GHOST, RPMFILE_MISSINGOK, rpmlog(), RPMLOG_DEBUG, RPMLOG_ERR, RPMLOG_WARNING, rpmswAdd(), rpmtsNotify(), S_ISLNK, S_ISSOCK, saveHardLink(), Stat(), stpcpy(), Symlink(), Unlink(), urlPath(), Utime(), writeFile(), writeLinkedFile(), xmalloc(), and xstrdup().

Referenced by fsmStage(), and iosmNext().

int iosmTeardown ( IOSM_t  iosm)

Clean I/O state machine.

Parameters:
iosmI/O state machine
Returns:
0 on success

Definition at line 793 of file iosm.c.

References _free(), fdFree(), IOSM_DESTROY, iosmUNSAFE, mapFreeIterator(), rpmswAdd(), RPMTS_OP_DIGEST, rpmtsFree(), and rpmtsOp().

IOSM_t newIOSM ( void  )

Definition at line 565 of file iosm.c.

References xcalloc().


Variable Documentation

int _iosm_debug = 0

Definition at line 67 of file iosm.c.

Referenced by iosmSetup().

int _iosm_threads = 0

Definition at line 71 of file iosm.c.

Referenced by iosmSetup().

int(* _iosmNext)(IOSM_t iosm, iosmFileStage nstage) = &iosmNext