fingerPrint * fpCacheGetByFp(fingerPrintCache cache,
struct fingerPrint_s * fp, int ix,
struct rpmffi_s ** recs, int * numRecs)
{
if (rpmFpHashGetEntry(cache->fp, fp + ix, recs, numRecs, NULL))
return fp + ix;
else
return NULL;
}
/* Check files in the transactions against the rpmdb
* Lookup all files with the same basename in the rpmdb
* and then check for matching finger prints
* @param ts transaction set
* @param fpc global finger print cache
*/
static
void checkInstalledFiles(rpmts ts, fingerPrintCache fpc)
{
rpmps ps;
rpmte p;
rpmfi fi;
rpmfs fs;
rpmfi otherFi=NULL;
int j;
int xx;
unsigned int fileNum;
const char * oldDir;
rpmdbMatchIterator mi;
Header h, newheader;
int beingRemoved;
rpmlog(RPMLOG_DEBUG, "computing file dispositions\n");
mi = rpmFindBaseNamesInDB(ts);
/* For all installed headers with matching basename's ... */
if (mi == NULL)
return;
if (rpmdbGetIteratorCount(mi) == 0) {
mi = rpmdbFreeIterator(mi);
return;
}
ps = rpmtsProblems(ts);
/* Loop over all packages from the rpmdb */
h = newheader = rpmdbNextIterator(mi);
while (h != NULL) {
headerGetFlags hgflags = HEADERGET_MINMEM;
struct rpmtd_s bnames, dnames, dindexes, ostates;
fingerPrint fp;
unsigned int installedPkg;
/* Is this package being removed? */
installedPkg = rpmdbGetIteratorOffset(mi);
beingRemoved = 0;
if (ts->removedPackages != NULL)
for (j = 0; j < ts->numRemovedPackages; j++) {
if (ts->removedPackages[j] != installedPkg)
continue;
beingRemoved = 1;
break;
}
h = headerLink(h);
headerGet(h, RPMTAG_BASENAMES, &bnames, hgflags);
headerGet(h, RPMTAG_DIRNAMES, &dnames, hgflags);
headerGet(h, RPMTAG_DIRINDEXES, &dindexes, hgflags);
headerGet(h, RPMTAG_FILESTATES, &ostates, hgflags);
oldDir = NULL;
/* loop over all interesting files in that package */
do {
int gotRecs;
struct rpmffi_s * recs;
int numRecs;
const char * dirName;
const char * baseName;
fileNum = rpmdbGetIteratorFileNum(mi);
rpmtdSetIndex(&bnames, fileNum);
rpmtdSetIndex(&dindexes, fileNum);
rpmtdSetIndex(&dnames, *rpmtdGetUint32(&dindexes));
rpmtdSetIndex(&ostates, fileNum);
dirName = rpmtdGetString(&dnames);
baseName = rpmtdGetString(&bnames);
/* lookup finger print for this file */
if ( dirName == oldDir) {
/* directory is the same as last round */
fp.baseName = baseName;
} else {
fp = fpLookup(fpc, dirName, baseName, 1);
oldDir = dirName;
}
/* search for files in the transaction with same finger print */
gotRecs = rpmFpHashGetEntry(ts->ht, &fp, &recs, &numRecs, NULL);
for (j=0; (j<numRecs)&&gotRecs; j++) {
p = recs[j].p;
fi = rpmteFI(p);
fs = rpmteGetFileStates(p);
/* Determine the fate of each file. */
switch (rpmteType(p)) {
case TR_ADDED:
if (!otherFi) {
otherFi = rpmfiNew(ts, h, RPMTAG_BASENAMES, RPMFI_KEEPHEADER);
}
rpmfiSetFX(fi, recs[j].fileno);
rpmfiSetFX(otherFi, fileNum);
xx = handleInstInstalledFile(ts, p, fi, h, otherFi, beingRemoved);
break;
case TR_REMOVED:
if (!beingRemoved) {
rpmfiSetFX(fi, recs[j].fileno);
if (*rpmtdGetChar(&ostates) == RPMFILE_STATE_NORMAL)
rpmfsSetAction(fs, recs[j].fileno, FA_SKIP);
}
break;
}
}
newheader = rpmdbNextIterator(mi);
} while (newheader==h);
otherFi = rpmfiFree(otherFi);
rpmtdFreeData(&ostates);
rpmtdFreeData(&bnames);
rpmtdFreeData(&dnames);
rpmtdFreeData(&dindexes);
headerFree(h);
h = newheader;
}
mi = rpmdbFreeIterator(mi);
}
/* XXX only ts->{probs,di} modified */
static void handleOverlappedFiles(const rpmts ts, const rpmte p, rpmfi fi)
{
rpm_loff_t fixupSize = 0;
rpmps ps;
const char * fn;
int i, j;
rpm_color_t tscolor = rpmtsColor(ts);
rpm_color_t prefcolor = rpmtsPrefColor(ts);
rpmfs fs = rpmteGetFileStates(p);
rpmfs otherFs;
ps = rpmtsProblems(ts);
fi = rpmfiInit(fi, 0);
if (fi != NULL)
while ((i = rpmfiNext(fi)) >= 0) {
rpm_color_t oFColor, FColor;
struct fingerPrint_s * fiFps;
int otherPkgNum, otherFileNum;
rpmfi otherFi;
rpmte otherTe;
rpmfileAttrs FFlags;
rpm_mode_t FMode;
struct rpmffi_s * recs;
int numRecs;
if (XFA_SKIPPING(rpmfsGetAction(fs, i)))
continue;
fn = rpmfiFN(fi);
fiFps = rpmfiFpsIndex(fi, i);
FFlags = rpmfiFFlags(fi);
FMode = rpmfiFMode(fi);
FColor = rpmfiFColor(fi);
FColor &= tscolor;
fixupSize = 0;
/*
* Retrieve all records that apply to this file. Note that the
* file info records were built in the same order as the packages
* will be installed and removed so the records for an overlapped
* files will be sorted in exactly the same order.
*/
(void) rpmFpHashGetEntry(ts->ht, fiFps, &recs, &numRecs, NULL);
/*
* If this package is being added, look only at other packages
* being added -- removed packages dance to a different tune.
*
* If both this and the other package are being added, overlapped
* files must be identical (or marked as a conflict). The
* disposition of already installed config files leads to
* a small amount of extra complexity.
*
* If this package is being removed, then there are two cases that
* need to be worried about:
* If the other package is being added, then skip any overlapped files
* so that this package removal doesn't nuke the overlapped files
* that were just installed.
* If both this and the other package are being removed, then each
* file removal from preceding packages needs to be skipped so that
* the file removal occurs only on the last occurence of an overlapped
* file in the transaction set.
*
*/
/* Locate this overlapped file in the set of added/removed packages. */
for (j = 0; j < numRecs && recs[j].p != p; j++)
{};
/* Find what the previous disposition of this file was. */
otherFileNum = -1; /* keep gcc quiet */
otherFi = NULL;
otherTe = NULL;
otherFs = NULL;
for (otherPkgNum = j - 1; otherPkgNum >= 0; otherPkgNum--) {
otherTe = recs[otherPkgNum].p;
otherFi = rpmteFI(otherTe);
otherFileNum = recs[otherPkgNum].fileno;
otherFs = rpmteGetFileStates(otherTe);
/* Added packages need only look at other added packages. */
if (rpmteType(p) == TR_ADDED && rpmteType(otherTe) != TR_ADDED)
continue;
(void) rpmfiSetFX(otherFi, otherFileNum);
/* XXX Happens iff fingerprint for incomplete package install. */
if (rpmfsGetAction(otherFs, otherFileNum) != FA_UNKNOWN);
break;
}
oFColor = rpmfiFColor(otherFi);
oFColor &= tscolor;
switch (rpmteType(p)) {
case TR_ADDED:
{
int reportConflicts =
!(rpmtsFilterFlags(ts) & RPMPROB_FILTER_REPLACENEWFILES);
int done = 0;
if (otherPkgNum < 0) {
/* XXX is this test still necessary? */
rpmFileAction action;
if (rpmfsGetAction(fs, i) != FA_UNKNOWN)
break;
if (rpmfiConfigConflict(fi)) {
/* Here is a non-overlapped pre-existing config file. */
action = (FFlags & RPMFILE_NOREPLACE) ?
FA_ALTNAME : FA_BACKUP;
} else {
action = FA_CREATE;
}
rpmfsSetAction(fs, i, action);
break;
}
assert(otherFi != NULL);
/* Mark added overlapped non-identical files as a conflict. */
if (rpmfiCompare(otherFi, fi)) {
int rConflicts;
rConflicts = reportConflicts;
/* Resolve file conflicts to prefer Elf64 (if not forced) ... */
if (tscolor != 0) {
if (FColor & prefcolor) {
/* ... last file of preferred colour is installed ... */
if (!XFA_SKIPPING(rpmfsGetAction(fs, i))) {
/* XXX static helpers are order dependent. Ick. */
if (strcmp(fn, "/usr/sbin/libgcc_post_upgrade")
&& strcmp(fn, "/usr/sbin/glibc_post_upgrade"))
rpmfsSetAction(otherFs, otherFileNum, FA_SKIPCOLOR);
}
rpmfsSetAction(fs, i, FA_CREATE);
rConflicts = 0;
} else
if (oFColor & prefcolor) {
/* ... first file of preferred colour is installed ... */
if (XFA_SKIPPING(rpmfsGetAction(fs, i)))
rpmfsSetAction(otherFs, otherFileNum, FA_CREATE);
rpmfsSetAction(fs, i, FA_SKIPCOLOR);
rConflicts = 0;
}
done = 1;
}
if (rConflicts) {
rpmpsAppend(ps, RPMPROB_NEW_FILE_CONFLICT,
rpmteNEVRA(p), rpmteKey(p),
fn, NULL,
rpmteNEVRA(otherTe),
0);
}
}
/* Try to get the disk accounting correct even if a conflict. */
fixupSize = rpmfiFSize(otherFi);
if (rpmfiConfigConflict(fi)) {
/* Here is an overlapped pre-existing config file. */
rpmFileAction action;
action = (FFlags & RPMFILE_NOREPLACE) ? FA_ALTNAME : FA_SKIP;
rpmfsSetAction(fs, i, action);
} else {
if (!done)
rpmfsSetAction(fs, i, FA_CREATE);
}
} break;
case TR_REMOVED:
if (otherPkgNum >= 0) {
assert(otherFi != NULL);
/* Here is an overlapped added file we don't want to nuke. */
if (rpmfsGetAction(otherFs, otherFileNum) != FA_ERASE) {
/* On updates, don't remove files. */
rpmfsSetAction(fs, i, FA_SKIP);
break;
}
/* Here is an overlapped removed file: skip in previous. */
rpmfsSetAction(otherFs, otherFileNum, FA_SKIP);
}
if (XFA_SKIPPING(rpmfsGetAction(fs, i)))
break;
if (rpmfiFState(fi) != RPMFILE_STATE_NORMAL)
break;
if (!(S_ISREG(FMode) && (FFlags & RPMFILE_CONFIG))) {
rpmfsSetAction(fs, i, FA_ERASE);
break;
}
/* Here is a pre-existing modified config file that needs saving. */
{ pgpHashAlgo algo = 0;
size_t diglen = 0;
const unsigned char *digest;
if ((digest = rpmfiFDigest(fi, &algo, &diglen))) {
unsigned char fdigest[diglen];
if (!rpmDoDigest(algo, fn, 0, fdigest, NULL) &&
memcmp(digest, fdigest, diglen)) {
rpmfsSetAction(fs, i, FA_BACKUP);
break;
}
}
}
rpmfsSetAction(fs, i, FA_ERASE);
break;
}
/* Update disk space info for a file. */
rpmtsUpdateDSI(ts, fiFps->entry->dev, rpmfiFSize(fi),
rpmfiFReplacedSize(fi), fixupSize, rpmfsGetAction(fs, i));
}
ps = rpmpsFree(ps);
}
/* Check file for to be installed symlinks in their path and correct their fp */
static void fpLookupSubdir(rpmFpHash symlinks, fingerPrintCache fpc, rpmte p, int filenr)
{
rpmfiles fi = rpmteFiles(p);
struct fingerPrint_s current_fp;
const char *currentsubdir;
size_t lensubDir, bnStart, bnEnd;
struct rpmffi_s * recs;
int numRecs;
int i;
fingerPrint *fp = rpmfilesFps(fi) + filenr;
int symlinkcount = 0;
struct rpmffi_s ffi = { p, filenr};
if (fp->subDirId == 0) {
rpmFpHashAddEntry(fpc->fp, fp, ffi);
goto exit;
}
currentsubdir = rpmstrPoolStr(fpc->pool, fp->subDirId);
lensubDir = rpmstrPoolStrlen(fpc->pool, fp->subDirId);
current_fp = *fp;
/* Set baseName to the upper most dir */
bnStart = bnEnd = 1;
while (bnEnd < lensubDir && currentsubdir[bnEnd] != '/')
bnEnd++;
/* no subDir for now */
current_fp.subDirId = 0;
while (bnEnd < lensubDir) {
char found = 0;
current_fp.baseNameId = rpmstrPoolIdn(fpc->pool,
currentsubdir + bnStart,
bnEnd - bnStart, 1);
rpmFpHashGetEntry(symlinks, ¤t_fp, &recs, &numRecs, NULL);
for (i = 0; i < numRecs; i++) {
rpmfiles foundfi = rpmteFiles(recs[i].p);
char const *linktarget = rpmfilesFLink(foundfi, recs[i].fileno);
char *link;
/* Ignore already removed (by eg %pretrans) links */
if (linktarget && rpmteType(recs[i].p) == TR_REMOVED) {
char *path = rpmfilesFN(foundfi, recs[i].fileno);
struct stat sb;
if (lstat(path, &sb) == -1)
linktarget = NULL;
free(path);
}
foundfi = rpmfilesFree(foundfi);
if (linktarget && *linktarget != '\0') {
const char *bn;
/* this "directory" is a symlink */
link = NULL;
if (*linktarget != '/') {
const char *dn, *subDir = NULL;
dn = rpmstrPoolStr(fpc->pool, current_fp.entry->dirId);
if (current_fp.subDirId) {
subDir = rpmstrPoolStr(fpc->pool, current_fp.subDirId);
}
rstrscat(&link, dn, subDir ? subDir : "", "/", NULL);
}
rstrscat(&link, linktarget, "/", NULL);
if (strlen(currentsubdir + bnEnd)) {
rstrscat(&link, currentsubdir + bnEnd, NULL);
}
bn = rpmstrPoolStr(fpc->pool, fp->baseNameId);
doLookup(fpc, link, bn, fp);
free(link);
symlinkcount++;
/* setup current_fp for the new path */
found = 1;
current_fp = *fp;
if (fp->subDirId == 0) {
/* directory exists - no need to look for symlinks */
rpmFpHashAddEntry(fpc->fp, fp, ffi);
goto exit;
}
currentsubdir = rpmstrPoolStr(fpc->pool, fp->subDirId);
lensubDir = rpmstrPoolStrlen(fpc->pool, fp->subDirId);
/* no subDir for now */
current_fp.subDirId = 0;
/* Set baseName to the upper most dir */
bnStart = bnEnd = 1;
while (bnEnd < lensubDir && currentsubdir[bnEnd] != '/')
bnEnd++;
break;
}
}
if (symlinkcount > 50) {
// found too many symlinks in the path
// most likley a symlink cicle
// giving up
// TODO warning/error
break;
}
if (found) {
continue; // restart loop after symlink
}
/* Set former baseName as subDir */
bnEnd++;
current_fp.subDirId = rpmstrPoolIdn(fpc->pool, currentsubdir, bnEnd, 1);
/* set baseName to the next lower dir */
bnStart = bnEnd;
while (bnEnd < lensubDir && currentsubdir[bnEnd] != '/')
bnEnd++;
}
rpmFpHashAddEntry(fpc->fp, fp, ffi);
exit:
rpmfilesFree(fi);
}
