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); }