3 * File state machine to handle a payload from a package.
10 #if defined(HAVE_MMAP)
14 #include <sys/capability.h>
17 #include <rpm/rpmte.h>
18 #include <rpm/rpmts.h>
19 #include <rpm/rpmsq.h>
20 #include <rpm/rpmlog.h>
22 #include "rpmio/rpmio_internal.h" /* fdInit/FiniDigest */
25 #define fsmUNSAFE fsmStage
26 #include "lib/rpmfi_internal.h" /* XXX fi->apath, ... */
27 #include "lib/rpmte_internal.h" /* XXX rpmfs */
28 #include "lib/rpmts_internal.h" /* rpmtsSELabelFoo() only */
29 #include "lib/rpmug.h"
34 int _fsm_debug = _FSM_DEBUG;
36 /* XXX Failure to remove is not (yet) cause for failure. */
37 static int strict_erasures = 0;
40 * Keeps track of the set of all hard links to a file in an archive.
44 const char ** nsuffix;
54 * Iterator across package file info, forward on install, backward on erase.
56 struct fsmIterator_s {
57 rpmts ts; /*!< transaction set. */
58 rpmte te; /*!< transaction element. */
59 rpmfi fi; /*!< transaction element file info. */
60 int reverse; /*!< reversed traversal? */
61 int isave; /*!< last returned iterator index. */
62 int i; /*!< iterator index. */
66 * Retrieve transaction set from file state machine iterator.
67 * @param fsm file state machine
68 * @return transaction set
70 static rpmts fsmGetTs(const FSM_t fsm)
72 const FSMI_t iter = fsm->iter;
73 return (iter ? iter->ts : NULL);
77 * Retrieve transaction element file info from file state machine iterator.
78 * @param fsm file state machine
79 * @return transaction element file info
81 static rpmfi fsmGetFi(const FSM_t fsm)
83 const FSMI_t iter = fsm->iter;
84 return (iter ? iter->fi : NULL);
87 static rpmte fsmGetTe(const FSM_t fsm)
89 const FSMI_t iter = fsm->iter;
90 return (iter ? iter->te : NULL);
93 #define SUFFIX_RPMORIG ".rpmorig"
94 #define SUFFIX_RPMSAVE ".rpmsave"
95 #define SUFFIX_RPMNEW ".rpmnew"
97 /* Default directory and file permissions if not mapped */
98 #define _dirPerms 0755
99 #define _filePerms 0644
102 * XXX Forward declarations for previously exported functions to avoid moving
103 * things around needlessly
105 static const char * fileStageString(fileStage a);
106 static const char * fileActionString(rpmFileAction a);
107 static int fsmStage(FSM_t fsm, fileStage stage);
110 * Build path to file from file info, ornamented with subdir and suffix.
111 * @param fsm file state machine data
112 * @param st file stat info
113 * @param subdir subdir to use (NULL disables)
114 * @param suffix suffix to use (NULL disables)
115 * @retval path to file (malloced)
117 static char * fsmFsPath(const FSM_t fsm,
118 const struct stat * st,
125 int isDir = (st && S_ISDIR(st->st_mode));
126 s = rstrscat(NULL, fsm->dirName,
127 (!isDir && subdir) ? subdir : "",
129 (!isDir && suffix) ? suffix : "",
136 * Destroy file info iterator.
137 * @param p file info iterator
138 * @retval NULL always
140 static FSMI_t mapFreeIterator(FSMI_t iter)
143 iter->ts = rpmtsFree(iter->ts);
144 iter->te = NULL; /* XXX rpmte is not refcounted yet */
145 iter->fi = rpmfiFree(iter->fi);
152 * Create file info iterator.
153 * @param ts transaction set
154 * @param fi transaction element file info
155 * @return file info iterator
158 mapInitIterator(rpmts ts, rpmte te, rpmfi fi)
162 iter = xcalloc(1, sizeof(*iter));
163 iter->ts = rpmtsLink(ts);
164 iter->te = te; /* XXX rpmte is not refcounted yet */
165 iter->fi = rpmfiLink(fi);
166 iter->reverse = (rpmteType(te) == TR_REMOVED);
167 iter->i = (iter->reverse ? (rpmfiFC(fi) - 1) : 0);
168 iter->isave = iter->i;
173 * Return next index into file info.
174 * @param a file info iterator
175 * @return next index, -1 on termination
177 static int mapNextIterator(FSMI_t iter)
182 const rpmfi fi = iter->fi;
184 if (iter->i >= 0) i = iter->i--;
186 if (iter->i < rpmfiFC(fi)) i = iter->i++;
195 static int cpioStrCmp(const void * a, const void * b)
197 const char * afn = *(const char **)a;
198 const char * bfn = *(const char **)b;
200 /* Match rpm-4.0 payloads with ./ prefixes. */
201 if (afn[0] == '.' && afn[1] == '/') afn += 2;
202 if (bfn[0] == '.' && bfn[1] == '/') bfn += 2;
204 /* If either path is absolute, make it relative. */
205 if (afn[0] == '/') afn += 1;
206 if (bfn[0] == '/') bfn += 1;
208 return strcmp(afn, bfn);
212 * Locate archive path in file info.
213 * @param iter file info iterator
214 * @param fsmPath archive path
215 * @return index into file info, -1 if archive path was not found
217 static int mapFind(FSMI_t iter, const char * fsmPath)
222 const rpmfi fi = iter->fi;
223 int fc = rpmfiFC(fi);
224 if (fi && fc > 0 && fi->apath && fsmPath && *fsmPath) {
227 if (fi->apath != NULL)
228 p = bsearch(&fsmPath, fi->apath, fc, sizeof(fsmPath),
231 iter->i = p - fi->apath;
232 ix = mapNextIterator(iter);
240 * Directory name iterator.
242 typedef struct dnli_s {
251 * Destroy directory name iterator.
252 * @param a directory name iterator
253 * @retval NULL always
255 static DNLI_t dnlFreeIterator(DNLI_t dnli)
258 if (dnli->active) free(dnli->active);
266 static inline int dnlCount(const DNLI_t dnli)
268 return (dnli ? rpmfiDC(dnli->fi) : 0);
273 static inline int dnlIndex(const DNLI_t dnli)
275 return (dnli ? dnli->isave : -1);
279 * Create directory name iterator.
280 * @param fsm file state machine data
281 * @param reverse traverse directory names in reverse order?
282 * @return directory name iterator
284 static DNLI_t dnlInitIterator(const FSM_t fsm, int reverse)
286 rpmfi fi = fsmGetFi(fsm);
287 rpmfs fs = rpmteGetFileStates(fsmGetTe(fsm));
295 dnli = xcalloc(1, sizeof(*dnli));
297 dnli->reverse = reverse;
298 dnli->i = (reverse ? dc : 0);
301 dnli->active = xcalloc(dc, sizeof(*dnli->active));
302 int fc = rpmfiFC(fi);
304 /* Identify parent directories not skipped. */
305 for (i = 0; i < fc; i++)
306 if (!XFA_SKIPPING(rpmfsGetAction(fs, i)))
307 dnli->active[rpmfiDIIndex(fi, i)] = 1;
309 /* Exclude parent directories that are explicitly included. */
310 for (i = 0; i < fc; i++) {
314 if (!S_ISDIR(rpmfiFModeIndex(fi, i)))
317 dil = rpmfiDIIndex(fi, i);
318 dnlen = strlen(rpmfiDNIndex(fi, dil));
319 bnlen = strlen(rpmfiBNIndex(fi, i));
321 for (j = 0; j < dc; j++) {
325 if (!dnli->active[j] || j == dil)
327 dnl = rpmfiDNIndex(fi, j);
329 if (jlen != (dnlen+bnlen+1))
331 if (!rstreqn(dnl, rpmfiDNIndex(fi, dil), dnlen))
333 if (!rstreqn(dnl+dnlen, rpmfiBNIndex(fi, i), bnlen))
335 if (dnl[dnlen+bnlen] != '/' || dnl[dnlen+bnlen+1] != '\0')
337 /* This directory is included in the package. */
343 /* Print only once per package. */
346 for (i = 0; i < dc; i++) {
347 if (!dnli->active[i]) continue;
351 "========== Directories not explicitly included in package:\n");
353 rpmlog(RPMLOG_DEBUG, "%10d %s\n", i, rpmfiDNIndex(fi, i));
356 rpmlog(RPMLOG_DEBUG, "==========\n");
363 * Return next directory name (from file info).
364 * @param dnli directory name iterator
365 * @return next directory name
368 const char * dnlNextIterator(DNLI_t dnli)
370 const char * dn = NULL;
374 int dc = rpmfiDC(fi);
379 i = (!dnli->reverse ? dnli->i++ : --dnli->i);
380 } while (i >= 0 && i < dc && !dnli->active[i]);
382 if (i >= 0 && i < dc)
383 dn = rpmfiDNIndex(fi, i);
391 int fsmNext(FSM_t fsm, fileStage nstage)
393 fsm->nstage = nstage;
394 return fsmStage(fsm, fsm->nstage);
398 * Map next file path and action.
399 * @param fsm file state machine
401 static int fsmMapPath(FSM_t fsm)
403 rpmfi fi = fsmGetFi(fsm); /* XXX const except for fstates */
409 fsm->action = FA_UNKNOWN;
412 if (fi && i >= 0 && i < rpmfiFC(fi)) {
413 rpmte te = fsmGetTe(fsm);
414 rpmfs fs = rpmteGetFileStates(te);
415 /* XXX these should use rpmfiFFlags() etc */
416 fsm->action = rpmfsGetAction(fs, i);
417 fsm->fflags = rpmfiFFlagsIndex(fi, i);
419 /* src rpms have simple base name in payload. */
420 fsm->dirName = rpmfiDNIndex(fi, rpmfiDIIndex(fi, i));
421 fsm->baseName = rpmfiBNIndex(fi, i);
423 if (rpmteType(te) == TR_ADDED) {
424 switch (fsm->action) {
426 rpmfsSetState(fs, i, RPMFILE_STATE_NOTINSTALLED);
428 case FA_SKIPNETSHARED:
429 rpmfsSetState(fs, i, RPMFILE_STATE_NETSHARED);
432 rpmfsSetState(fs, i, RPMFILE_STATE_WRONGCOLOR);
435 if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
436 fsm->nsuffix = SUFFIX_RPMNEW;
439 if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
440 fsm->osuffix = SUFFIX_RPMSAVE;
447 if (fsm->action == FA_BACKUP && !(fsm->fflags & RPMFILE_GHOST)) {
448 /* XXX Don't if %ghost file. */
449 fsm->osuffix = (rpmteType(te) == TR_ADDED) ? SUFFIX_RPMORIG : SUFFIX_RPMSAVE;
452 if ((fsm->mapFlags & CPIO_MAP_PATH) || fsm->nsuffix) {
453 const struct stat * st = &fsm->sb;
454 fsm->path = _free(fsm->path);
455 fsm->path = fsmFsPath(fsm, st, NULL,
456 (fsm->suffix ? fsm->suffix : fsm->nsuffix));
463 * Save hard link in chain.
464 * @param fsm file state machine data
465 * @return Is chain only partially filled?
467 static int saveHardLink(FSM_t fsm)
469 struct stat * st = &fsm->sb;
474 /* Find hard link set. */
475 for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
476 if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
480 /* New hard link encountered, add new link to set. */
481 if (fsm->li == NULL) {
482 fsm->li = xcalloc(1, sizeof(*fsm->li));
483 fsm->li->next = NULL;
484 fsm->li->sb = *st; /* structure assignment */
485 fsm->li->nlink = st->st_nlink;
486 fsm->li->linkIndex = fsm->ix;
487 fsm->li->createdPath = -1;
489 fsm->li->filex = xcalloc(st->st_nlink, sizeof(fsm->li->filex[0]));
490 memset(fsm->li->filex, -1, (st->st_nlink * sizeof(fsm->li->filex[0])));
491 fsm->li->nsuffix = xcalloc(st->st_nlink, sizeof(*fsm->li->nsuffix));
493 if (fsm->goal == FSM_PKGBUILD)
494 fsm->li->linksLeft = st->st_nlink;
495 if (fsm->goal == FSM_PKGINSTALL)
496 fsm->li->linksLeft = 0;
498 fsm->li->next = fsm->links;
499 fsm->links = fsm->li;
502 if (fsm->goal == FSM_PKGBUILD) --fsm->li->linksLeft;
503 fsm->li->filex[fsm->li->linksLeft] = fsm->ix;
504 fsm->li->nsuffix[fsm->li->linksLeft] = fsm->nsuffix;
505 if (fsm->goal == FSM_PKGINSTALL) fsm->li->linksLeft++;
507 if (fsm->goal == FSM_PKGBUILD)
508 return (fsm->li->linksLeft > 0);
510 if (fsm->goal != FSM_PKGINSTALL)
513 if (!(st->st_size || fsm->li->linksLeft == st->st_nlink))
516 /* Here come the bits, time to choose a non-skipped file name. */
517 { rpmfs fs = rpmteGetFileStates(fsmGetTe(fsm));
519 for (j = fsm->li->linksLeft - 1; j >= 0; j--) {
520 ix = fsm->li->filex[j];
521 if (ix < 0 || XFA_SKIPPING(rpmfsGetAction(fs, ix)))
527 /* Are all links skipped or not encountered yet? */
529 return 1; /* XXX W2DO? */
531 /* Save the non-skipped file name and map index. */
532 fsm->li->linkIndex = j;
533 fsm->path = _free(fsm->path);
535 rc = fsmMapPath(fsm);
540 * Destroy set of hard links.
541 * @param li set of hard links
542 * @return NULL always
544 static hardLink_t freeHardLink(hardLink_t li)
547 li->nsuffix = _free(li->nsuffix); /* XXX elements are shared */
548 li->filex = _free(li->filex);
554 /* forward declaration*/
555 static int fsmMkdirs(DNLI_t dnli, struct selabel_handle *sehandle);
557 static int fsmCreate(FSM_t fsm)
560 fsm->path = _free(fsm->path);
562 fsm->rdsize = fsm->wrsize = 0;
563 fsm->rdbuf = fsm->rdb = _free(fsm->rdb);
564 fsm->wrbuf = fsm->wrb = _free(fsm->wrb);
565 if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
566 fsm->rdsize = 8 * BUFSIZ;
567 fsm->rdbuf = fsm->rdb = xmalloc(fsm->rdsize);
568 fsm->wrsize = 8 * BUFSIZ;
569 fsm->wrbuf = fsm->wrb = xmalloc(fsm->wrsize);
575 errno = 0; /* XXX get rid of EBADF */
577 /* Detect and create directories not explicitly in package. */
578 /* XXX This seems like a strange place to do this... */
579 if (fsm->goal == FSM_PKGINSTALL) {
580 DNLI_t dnli = dnlInitIterator(fsm, 0);
581 rc = fsmMkdirs(dnli, fsm->sehandle);
582 dnlFreeIterator(dnli);
587 static int fsmSetup(FSM_t fsm, fileStage goal,
588 rpmts ts, rpmte te, rpmfi fi, FD_t cfd, rpmpsm psm,
589 rpm_loff_t * archiveSize, char ** failedFile)
592 int isSrc = rpmteIsSource(te);
596 fsm->cfd = fdLink(cfd);
599 fsm->iter = mapInitIterator(ts, te, fi);
601 fsm->sehandle = rpmtsSELabelHandle(ts);
603 fsm->mapFlags = CPIO_MAP_PATH | CPIO_MAP_MODE | CPIO_MAP_UID | CPIO_MAP_GID;
604 if (goal == FSM_PKGBUILD) {
605 fsm->mapFlags |= CPIO_MAP_TYPE;
607 fsm->mapFlags |= CPIO_FOLLOW_SYMLINKS;
611 fsm->mapFlags |= CPIO_SBIT_CHECK;
615 fsm->archiveSize = archiveSize;
616 if (fsm->archiveSize)
617 *fsm->archiveSize = 0;
618 fsm->failedFile = failedFile;
620 *fsm->failedFile = NULL;
622 if (fsm->goal == FSM_PKGINSTALL) {
623 rasprintf(&fsm->suffix, ";%08x", (unsigned)rpmtsGetTid(ts));
628 if (rc && !ec) ec = rc;
630 rc = fsmUNSAFE(fsm, fsm->goal);
631 if (rc && !ec) ec = rc;
633 if (fsm->archiveSize && ec == 0)
634 *fsm->archiveSize = fsm->cpioPos;
636 /* FIX: *fsm->failedFile may be NULL */
640 static int fsmTeardown(FSM_t fsm)
645 rc = fsmUNSAFE(fsm, FSM_DESTROY);
647 fsm->iter = mapFreeIterator(fsm->iter);
648 if (fsm->cfd != NULL) {
649 fsm->cfd = fdFree(fsm->cfd);
652 fsm->failedFile = NULL;
654 fsm->path = _free(fsm->path);
655 fsm->suffix = _free(fsm->suffix);
656 while ((fsm->li = fsm->links) != NULL) {
657 fsm->links = fsm->li->next;
658 fsm->li->next = NULL;
659 fsm->li = freeHardLink(fsm->li);
664 /* Find and set file security context */
665 static int fsmSetSELabel(struct selabel_handle *sehandle,
666 const char *path, mode_t mode)
671 security_context_t scon = NULL;
673 if (selabel_lookup_raw(sehandle, &scon, path, mode) == 0) {
674 rc = lsetfilecon(path, scon);
676 if (_fsm_debug && (FSM_LSETFCON & FSM_SYSCALL)) {
677 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n",
678 fileStageString(FSM_LSETFCON), path, scon,
679 (rc < 0 ? strerror(errno) : ""));
682 if (rc < 0 && errno == EOPNOTSUPP)
689 return rc ? CPIOERR_LSETFCON_FAILED : 0;
692 static int fsmSetFCaps(const char *path, const char *captxt)
696 if (captxt && *captxt != '\0') {
697 cap_t fcaps = cap_from_text(captxt);
698 if (fcaps == NULL || cap_set_file(path, fcaps) != 0) {
699 rc = CPIOERR_SETCAP_FAILED;
708 * Map file stat(2) info.
709 * @param fsm file state machine
711 static int fsmMapAttrs(FSM_t fsm)
713 struct stat * st = &fsm->sb;
714 rpmfi fi = fsmGetFi(fsm);
717 /* this check is pretty moot, rpmfi accessors check array bounds etc */
718 if (fi && i >= 0 && i < rpmfiFC(fi)) {
719 ino_t finalInode = rpmfiFInodeIndex(fi, i);
720 mode_t finalMode = rpmfiFModeIndex(fi, i);
721 dev_t finalRdev = rpmfiFRdevIndex(fi, i);
722 time_t finalMtime = rpmfiFMtimeIndex(fi, i);
723 const char *user = rpmfiFUserIndex(fi, i);
724 const char *group = rpmfiFGroupIndex(fi, i);
728 if (user && rpmugUid(user, &uid)) {
729 if (fsm->goal == FSM_PKGINSTALL)
730 rpmlog(RPMLOG_WARNING,
731 _("user %s does not exist - using root\n"), user);
732 finalMode &= ~S_ISUID; /* turn off suid bit */
735 if (group && rpmugGid(group, &gid)) {
736 if (fsm->goal == FSM_PKGINSTALL)
737 rpmlog(RPMLOG_WARNING,
738 _("group %s does not exist - using root\n"), group);
739 finalMode &= ~S_ISGID; /* turn off sgid bit */
742 if (fsm->mapFlags & CPIO_MAP_MODE)
743 st->st_mode = (st->st_mode & S_IFMT) | (finalMode & ~S_IFMT);
744 if (fsm->mapFlags & CPIO_MAP_TYPE) {
745 st->st_mode = (st->st_mode & ~S_IFMT) | (finalMode & S_IFMT);
746 if ((S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
747 && st->st_nlink == 0)
749 st->st_ino = finalInode;
750 st->st_rdev = finalRdev;
751 st->st_mtime = finalMtime;
753 if (fsm->mapFlags & CPIO_MAP_UID)
755 if (fsm->mapFlags & CPIO_MAP_GID)
762 * Create file from payload stream.
763 * @param fsm file state machine data
764 * @return 0 on success
766 static int expandRegular(FSM_t fsm)
769 const struct stat * st = &fsm->sb;
770 rpm_loff_t left = st->st_size;
771 const unsigned char * fidigest = NULL;
772 pgpHashAlgo digestalgo = 0;
775 wfd = Fopen(fsm->path, "w.ufdio");
777 rc = CPIOERR_OPEN_FAILED;
781 if (!(rpmtsFlags(fsmGetTs(fsm)) & RPMTRANS_FLAG_NOFILEDIGEST)) {
782 rpmfi fi = fsmGetFi(fsm);
783 digestalgo = rpmfiDigestAlgo(fi);
784 fidigest = rpmfiFDigestIndex(fi, fsm->ix, NULL, NULL);
787 if (st->st_size > 0 && fidigest)
788 fdInitDigest(wfd, digestalgo, 0);
792 fsm->wrlen = (left > fsm->wrsize ? fsm->wrsize : left);
793 rc = fsmNext(fsm, FSM_DREAD);
797 fsm->wrnb = Fwrite(fsm->wrbuf, sizeof(*fsm->wrbuf), fsm->rdnb, wfd);
798 if (fsm->rdnb != fsm->wrnb || Ferror(wfd)) {
799 rc = CPIOERR_WRITE_FAILED;
805 /* don't call this with fileSize == fileComplete */
807 (void) fsmNext(fsm, FSM_NOTIFY);
810 if (st->st_size > 0 && fidigest) {
811 void * digest = NULL;
814 fdFiniDigest(wfd, digestalgo, &digest, NULL, 0);
816 if (digest != NULL && fidigest != NULL) {
817 size_t diglen = rpmDigestLength(digestalgo);
818 if (memcmp(digest, fidigest, diglen))
819 rc = CPIOERR_DIGEST_MISMATCH;
821 rc = CPIOERR_DIGEST_MISMATCH;
829 rpmswAdd(rpmtsOp(fsmGetTs(fsm), RPMTS_OP_DIGEST),
830 fdOp(wfd, FDSTAT_DIGEST));
837 static int fsmReadLink(const char *path,
838 char *buf, size_t bufsize, size_t *linklen)
840 ssize_t llen = readlink(path, buf, bufsize - 1);
841 int rc = CPIOERR_READLINK_FAILED;
843 if (_fsm_debug && (FSM_READLINK & FSM_SYSCALL)) {
844 rpmlog(RPMLOG_DEBUG, " %8s (%s, rdbuf, %d) %s\n",
845 fileStageString(FSM_READLINK),
846 path, (int)(bufsize -1), (llen < 0 ? strerror(errno) : ""));
858 * Write next item to payload stream.
859 * @param fsm file state machine data
860 * @param writeData should data be written?
861 * @return 0 on success
863 static int writeFile(FSM_t fsm, int writeData)
866 char * path = fsm->path;
867 struct stat * st = &fsm->sb;
868 struct stat * ost = &fsm->osb;
869 char * symbuf = NULL;
873 st->st_size = (writeData ? ost->st_size : 0);
875 if (S_ISDIR(st->st_mode)) {
877 } else if (S_ISLNK(st->st_mode)) {
879 * While linux puts the size of a symlink in the st_size field,
880 * I don't think that's a specified standard.
882 /* XXX NUL terminated result in fsm->rdbuf, len in fsm->rdnb. */
883 rc = fsmReadLink(fsm->path, fsm->rdbuf, fsm->rdsize, &fsm->rdnb);
885 st->st_size = fsm->rdnb;
886 rstrcat(&symbuf, fsm->rdbuf); /* XXX save readlink return. */
889 if (fsm->mapFlags & CPIO_MAP_ABSOLUTE) {
890 fsm->path = rstrscat(NULL, (fsm->mapFlags & CPIO_MAP_ADDDOT) ? "." : "",
891 fsm->dirName, fsm->baseName, NULL);
892 } else if (fsm->mapFlags & CPIO_MAP_PATH) {
893 rpmfi fi = fsmGetFi(fsm);
894 fsm->path = xstrdup((fi->apath ? fi->apath[fsm->ix] :
895 rpmfiBNIndex(fi, fsm->ix)));
898 rc = cpioHeaderWrite(fsm, st);
903 if (writeData && S_ISREG(st->st_mode)) {
907 void * mapped = MAP_FAILED;
912 rfd = Fopen(fsm->path, "r.ufdio");
914 rc = CPIOERR_OPEN_FAILED;
918 /* XXX unbuffered mmap generates *lots* of fdio debugging */
921 mapped = mmap(NULL, st->st_size, PROT_READ, MAP_SHARED, Fileno(rfd), 0);
922 if (mapped != MAP_FAILED) {
924 fsm->rdbuf = (char *) mapped;
925 rdlen = nmapped = st->st_size;
926 #if defined(MADV_DONTNEED)
927 xx = madvise(mapped, nmapped, MADV_DONTNEED);
936 if (mapped != MAP_FAILED) {
941 rdlen = (left > fsm->rdsize ? fsm->rdsize : left),
943 fsm->rdnb = Fread(fsm->rdbuf, sizeof(*fsm->rdbuf), rdlen, rfd);
944 if (fsm->rdnb != rdlen || Ferror(rfd)) {
945 rc = CPIOERR_READ_FAILED;
950 /* XXX DWRITE uses rdnb for I/O length. */
951 rc = fsmNext(fsm, FSM_DWRITE);
958 if (mapped != MAP_FAILED) {
959 xx = msync(mapped, nmapped, MS_ASYNC);
960 #if defined(MADV_DONTNEED)
961 xx = madvise(mapped, nmapped, MADV_DONTNEED);
963 xx = munmap(mapped, nmapped);
968 } else if (writeData && S_ISLNK(st->st_mode)) {
969 /* XXX DWRITE uses rdnb for I/O length. */
970 strcpy(fsm->rdbuf, symbuf); /* XXX restore readlink buffer. */
971 fsm->rdnb = strlen(symbuf);
972 rc = fsmNext(fsm, FSM_DWRITE);
976 rc = fsmNext(fsm, FSM_PAD);
983 /* preserve any prior errno across close */
985 rpmswAdd(rpmtsOp(fsmGetTs(fsm), RPMTS_OP_DIGEST),
986 fdOp(rfd, FDSTAT_DIGEST));
996 * Write set of linked files to payload stream.
997 * @param fsm file state machine data
998 * @return 0 on success
1000 static int writeLinkedFile(FSM_t fsm)
1002 char * path = fsm->path;
1003 const char * nsuffix = fsm->nsuffix;
1004 int iterIndex = fsm->ix;
1010 fsm->nsuffix = NULL;
1013 for (i = fsm->li->nlink - 1; i >= 0; i--) {
1015 if (fsm->li->filex[i] < 0) continue;
1017 fsm->ix = fsm->li->filex[i];
1018 rc = fsmMapPath(fsm);
1020 /* Write data after last link. */
1021 rc = writeFile(fsm, (i == 0));
1022 if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
1024 *fsm->failedFile = xstrdup(fsm->path);
1027 fsm->path = _free(fsm->path);
1028 fsm->li->filex[i] = -1;
1031 fsm->ix = iterIndex;
1032 fsm->nsuffix = nsuffix;
1037 static int writeLinks(FSM_t fsm)
1042 while ((fsm->li = fsm->links) != NULL) {
1043 fsm->links = fsm->li->next;
1044 fsm->li->next = NULL;
1046 /* Re-calculate link count for archive header. */
1047 for (j = -1, nlink = 0, i = 0; i < fsm->li->nlink; i++) {
1048 if (fsm->li->filex[i] < 0)
1053 /* XXX force the contents out as well. */
1055 fsm->li->filex[0] = fsm->li->filex[j];
1056 fsm->li->filex[j] = -1;
1058 fsm->li->sb.st_nlink = nlink;
1060 fsm->sb = fsm->li->sb; /* structure assignment */
1061 fsm->osb = fsm->sb; /* structure assignment */
1063 if (!rc) rc = writeLinkedFile(fsm);
1065 fsm->li = freeHardLink(fsm->li);
1070 static int fsmStat(const char *path, int dolstat, struct stat *sb)
1074 rc = lstat(path, sb);
1076 rc = stat(path, sb);
1078 if (_fsm_debug && (FSM_STAT & FSM_SYSCALL) && rc && errno != ENOENT)
1079 rpmlog(RPMLOG_DEBUG, " %8s (%s, ost) %s\n",
1080 fileStageString(dolstat ? FSM_LSTAT : FSM_STAT),
1081 path, (rc < 0 ? strerror(errno) : ""));
1083 rc = (errno == ENOENT ? CPIOERR_ENOENT : CPIOERR_LSTAT_FAILED);
1084 /* WTH is this, and is it really needed, still? */
1085 memset(sb, 0, sizeof(*sb)); /* XXX s390x hackery */
1090 static int fsmVerify(FSM_t fsm);
1092 /** \ingroup payload
1093 * Create pending hard links to existing file.
1094 * @param fsm file state machine data
1095 * @return 0 on success
1097 static int fsmMakeLinks(FSM_t fsm)
1099 char * path = fsm->path;
1100 char * opath = NULL;
1101 const char * nsuffix = fsm->nsuffix;
1102 int iterIndex = fsm->ix;
1108 fsm->nsuffix = NULL;
1111 fsm->ix = fsm->li->filex[fsm->li->createdPath];
1112 rc = fsmMapPath(fsm);
1115 for (i = 0; i < fsm->li->nlink; i++) {
1116 if (fsm->li->filex[i] < 0) continue;
1117 if (fsm->li->createdPath == i) continue;
1119 fsm->ix = fsm->li->filex[i];
1120 fsm->path = _free(fsm->path);
1121 rc = fsmMapPath(fsm);
1122 if (XFA_SKIPPING(fsm->action)) continue;
1124 rc = fsmVerify(fsm);
1126 if (!(rc == CPIOERR_ENOENT)) break;
1128 /* XXX link(opath, fsm->path) */
1129 rc = link(opath, fsm->path);
1130 if (_fsm_debug && (FSM_LINK & FSM_SYSCALL))
1131 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_LINK),
1132 opath, fsm->path, (rc < 0 ? strerror(errno) : ""));
1133 if (rc < 0) rc = CPIOERR_LINK_FAILED;
1135 if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
1137 *fsm->failedFile = xstrdup(fsm->path);
1140 fsm->li->linksLeft--;
1142 fsm->path = _free(fsm->path);
1145 fsm->ix = iterIndex;
1146 fsm->nsuffix = nsuffix;
1151 /** \ingroup payload
1152 * Commit hard linked file set atomically.
1153 * @param fsm file state machine data
1154 * @return 0 on success
1156 static int fsmCommitLinks(FSM_t fsm)
1158 char * path = fsm->path;
1159 const char * nsuffix = fsm->nsuffix;
1160 int iterIndex = fsm->ix;
1161 struct stat * st = &fsm->sb;
1166 fsm->nsuffix = NULL;
1169 for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
1170 if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
1174 for (i = 0; i < fsm->li->nlink; i++) {
1175 if (fsm->li->filex[i] < 0) continue;
1176 fsm->ix = fsm->li->filex[i];
1177 rc = fsmMapPath(fsm);
1178 if (!XFA_SKIPPING(fsm->action))
1179 rc = fsmNext(fsm, FSM_COMMIT);
1180 fsm->path = _free(fsm->path);
1181 fsm->li->filex[i] = -1;
1184 fsm->ix = iterIndex;
1185 fsm->nsuffix = nsuffix;
1190 static int fsmRmdir(const char *path)
1192 int rc = rmdir(path);
1193 if (_fsm_debug && (FSM_RMDIR & FSM_SYSCALL))
1194 rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", fileStageString(FSM_RMDIR),
1195 path, (rc < 0 ? strerror(errno) : ""));
1198 case ENOENT: rc = CPIOERR_ENOENT; break;
1199 case ENOTEMPTY: rc = CPIOERR_ENOTEMPTY; break;
1200 default: rc = CPIOERR_RMDIR_FAILED; break;
1205 static int fsmMkdir(const char *path, mode_t mode)
1207 int rc = mkdir(path, (mode & 07777));
1208 if (_fsm_debug && (FSM_MKDIR & FSM_SYSCALL))
1209 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", fileStageString(FSM_MKDIR),
1210 path, (unsigned)(mode & 07777),
1211 (rc < 0 ? strerror(errno) : ""));
1212 if (rc < 0) rc = CPIOERR_MKDIR_FAILED;
1216 static int fsmMkfifo(const char *path, mode_t mode)
1218 int rc = mkfifo(path, (mode & 07777));
1220 if (_fsm_debug && (FSM_MKFIFO & FSM_SYSCALL)) {
1221 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n",
1222 fileStageString(FSM_MKFIFO), path, (unsigned)(mode & 07777),
1223 (rc < 0 ? strerror(errno) : ""));
1227 rc = CPIOERR_MKFIFO_FAILED;
1232 static int fsmMknod(const char *path, mode_t mode, dev_t dev)
1234 /* FIX: check S_IFIFO or dev != 0 */
1235 int rc = mknod(path, (mode & ~07777), dev);
1237 if (_fsm_debug && (FSM_MKNOD & FSM_SYSCALL)) {
1238 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%o, 0x%x) %s\n",
1239 fileStageString(FSM_MKNOD), path, (unsigned)(mode & ~07777),
1240 (unsigned)dev, (rc < 0 ? strerror(errno) : ""));
1244 rc = CPIOERR_MKNOD_FAILED;
1250 * Create (if necessary) directories not explicitly included in package.
1251 * @param dnli file state machine data
1252 * @param sehandle selinux label handle (bah)
1253 * @return 0 on success
1255 static int fsmMkdirs(DNLI_t dnli, struct selabel_handle *sehandle)
1259 int dc = dnlCount(dnli);
1265 short * dnlx = NULL;
1267 dnlx = (dc ? xcalloc(dc, sizeof(*dnlx)) : NULL);
1270 while ((dpath = dnlNextIterator(dnli)) != NULL) {
1271 size_t dnlen = strlen(dpath);
1272 char * te, dn[dnlen+1];
1274 dc = dnlIndex(dnli);
1275 if (dc < 0) continue;
1280 if (dnlen <= ldnlen && rstreq(dpath, ldn))
1283 /* Copy as we need to modify the string */
1284 (void) stpcpy(dn, dpath);
1286 /* Assume '/' directory exists, "mkdir -p" for others if non-existent */
1287 for (i = 1, te = dn + 1; *te != '\0'; te++, i++) {
1293 /* Already validated? */
1295 (ldn[i] == '/' || ldn[i] == '\0') && rstreqn(dn, ldn, i))
1298 /* Move pre-existing path marker forward. */
1299 dnlx[dc] = (te - dn);
1303 /* Validate next component of path. */
1304 rc = fsmStat(dn, 1, &sb); /* lstat */
1307 /* Directory already exists? */
1308 if (rc == 0 && S_ISDIR(sb.st_mode)) {
1309 /* Move pre-existing path marker forward. */
1310 dnlx[dc] = (te - dn);
1311 } else if (rc == CPIOERR_ENOENT) {
1313 mode_t mode = S_IFDIR | (_dirPerms & 07777);
1314 rc = fsmMkdir(dn, mode);
1316 rc = fsmSetSELabel(sehandle, dn, mode);
1318 rpmlog(RPMLOG_DEBUG,
1319 "%s directory created with perms %04o\n",
1320 dn, (unsigned)(mode & 07777));
1329 /* Save last validated path. */
1330 if (ldnalloc < (dnlen + 1)) {
1331 ldnalloc = dnlen + 100;
1332 ldn = xrealloc(ldn, ldnalloc);
1334 if (ldn != NULL) { /* XXX can't happen */
1345 static void removeSBITS(const char *path)
1348 if (lstat(path, &stb) == 0 && S_ISREG(stb.st_mode)) {
1349 if ((stb.st_mode & 06000) != 0) {
1350 (void) chmod(path, stb.st_mode & 0777);
1353 if (stb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) {
1354 (void) cap_set_file(path, NULL);
1360 /********************************************************************/
1362 static int fsmInit(FSM_t fsm)
1366 fsm->path = _free(fsm->path);
1368 fsm->diskchecked = fsm->exists = 0;
1369 fsm->action = FA_UNKNOWN;
1370 fsm->osuffix = NULL;
1371 fsm->nsuffix = NULL;
1373 if (fsm->goal == FSM_PKGINSTALL) {
1374 /* Read next header from payload, checking for end-of-payload. */
1375 rc = fsmUNSAFE(fsm, FSM_NEXT);
1379 /* Identify mapping index. */
1380 fsm->ix = ((fsm->goal == FSM_PKGINSTALL)
1381 ? mapFind(fsm->iter, fsm->path) : mapNextIterator(fsm->iter));
1383 /* Detect end-of-loop and/or mapping error. */
1385 if (fsm->goal == FSM_PKGINSTALL) {
1387 rpmlog(RPMLOG_WARNING,
1388 _("archive file %s was not found in header file list\n"),
1391 if (fsm->failedFile && *fsm->failedFile == NULL)
1392 *fsm->failedFile = xstrdup(fsm->path);
1393 rc = CPIOERR_UNMAPPED_FILE;
1395 rc = CPIOERR_HDR_TRAILER;
1400 /* On non-install, mode must be known so that dirs don't get suffix. */
1401 if (fsm->goal != FSM_PKGINSTALL) {
1402 rpmfi fi = fsmGetFi(fsm);
1403 fsm->sb.st_mode = rpmfiFModeIndex(fi, fsm->ix);
1406 /* Generate file path. */
1407 rc = fsmMapPath(fsm);
1410 /* Perform lstat/stat for disk file. */
1411 if (fsm->path != NULL &&
1412 !(fsm->goal == FSM_PKGINSTALL && S_ISREG(fsm->sb.st_mode)))
1414 int dolstat = !(fsm->mapFlags & CPIO_FOLLOW_SYMLINKS);
1415 rc = fsmStat(fsm->path, dolstat, &fsm->osb);
1416 if (rc == CPIOERR_ENOENT) {
1417 // errno = saveerrno; XXX temporary commented out
1420 } else if (rc == 0) {
1424 /* Skip %ghost files on build. */
1427 fsm->diskchecked = 1;
1430 /* On non-install, the disk file stat is what's remapped. */
1431 if (fsm->goal != FSM_PKGINSTALL)
1432 fsm->sb = fsm->osb; /* structure assignment */
1434 /* Remap file perms, owner, and group. */
1435 rc = fsmMapAttrs(fsm);
1438 fsm->postpone = XFA_SKIPPING(fsm->action);
1439 if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
1440 /* FIX: saveHardLink can modify fsm */
1441 if (S_ISREG(fsm->sb.st_mode) && fsm->sb.st_nlink > 1)
1442 fsm->postpone = saveHardLink(fsm);
1448 static int fsmSymlink(const char *opath, const char *path)
1450 int rc = symlink(opath, path);
1452 if (_fsm_debug && (FSM_SYMLINK & FSM_SYSCALL)) {
1453 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_SYMLINK),
1454 opath, path, (rc < 0 ? strerror(errno) : ""));
1458 rc = CPIOERR_SYMLINK_FAILED;
1462 static int fsmUnlink(const char *path, cpioMapFlags mapFlags)
1465 if (mapFlags & CPIO_SBIT_CHECK)
1468 if (_fsm_debug && (FSM_UNLINK & FSM_SYSCALL))
1469 rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", fileStageString(FSM_UNLINK),
1470 path, (rc < 0 ? strerror(errno) : ""));
1472 rc = (errno == ENOENT ? CPIOERR_ENOENT : CPIOERR_UNLINK_FAILED);
1476 static int fsmRename(const char *opath, const char *path,
1477 cpioMapFlags mapFlags)
1479 if (mapFlags & CPIO_SBIT_CHECK)
1481 int rc = rename(opath, path);
1482 #if defined(ETXTBSY) && defined(__HPUX__)
1483 /* XXX HP-UX (and other os'es) don't permit rename to busy files. */
1484 if (rc && errno == ETXTBSY) {
1485 char *rmpath = NULL;
1486 rstrscat(&rmpath, path, "-RPMDELETE", NULL);
1487 rc = rename(path, rmpath);
1488 if (!rc) rc = rename(opath, path);
1492 if (_fsm_debug && (FSM_RENAME & FSM_SYSCALL))
1493 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_RENAME),
1494 opath, path, (rc < 0 ? strerror(errno) : ""));
1495 if (rc < 0) rc = CPIOERR_RENAME_FAILED;
1500 static int fsmChown(const char *path, uid_t uid, gid_t gid)
1502 int rc = chown(path, uid, gid);
1505 if (lstat(path, &st) == 0 && st.st_uid == uid && st.st_gid == gid)
1508 if (_fsm_debug && (FSM_CHOWN & FSM_SYSCALL))
1509 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", fileStageString(FSM_CHOWN),
1510 path, (int)uid, (int)gid,
1511 (rc < 0 ? strerror(errno) : ""));
1512 if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
1516 static int fsmLChown(const char *path, uid_t uid, gid_t gid)
1518 int rc = lchown(path, uid, gid);
1521 if (lstat(path, &st) == 0 && st.st_uid == uid && st.st_gid == gid)
1524 if (_fsm_debug && (FSM_LCHOWN & FSM_SYSCALL))
1525 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", fileStageString(FSM_LCHOWN),
1526 path, (int)uid, (int)gid,
1527 (rc < 0 ? strerror(errno) : ""));
1528 if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
1532 static int fsmChmod(const char *path, mode_t mode)
1534 int rc = chmod(path, (mode & 07777));
1537 if (lstat(path, &st) == 0 && (st.st_mode & 07777) == (mode & 07777))
1540 if (_fsm_debug && (FSM_CHMOD & FSM_SYSCALL))
1541 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", fileStageString(FSM_CHMOD),
1542 path, (unsigned)(mode & 07777),
1543 (rc < 0 ? strerror(errno) : ""));
1544 if (rc < 0) rc = CPIOERR_CHMOD_FAILED;
1548 static int fsmUtime(const char *path, time_t mtime)
1551 struct utimbuf stamp;
1552 stamp.actime = mtime;
1553 stamp.modtime = mtime;
1554 rc = utime(path, &stamp);
1555 if (_fsm_debug && (FSM_UTIME & FSM_SYSCALL))
1556 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0x%x) %s\n", fileStageString(FSM_UTIME),
1557 path, (unsigned)mtime, (rc < 0 ? strerror(errno) : ""));
1558 if (rc < 0) rc = CPIOERR_UTIME_FAILED;
1562 static int fsmVerify(FSM_t fsm)
1565 struct stat * st = &fsm->sb;
1566 struct stat * ost = &fsm->osb;
1567 int saveerrno = errno;
1569 if (fsm->diskchecked && !fsm->exists) {
1570 return CPIOERR_ENOENT;
1572 if (S_ISREG(st->st_mode)) {
1573 /* HP-UX (and other os'es) don't permit unlink on busy files. */
1574 char *rmpath = rstrscat(NULL, fsm->path, "-RPMDELETE", NULL);
1575 rc = fsmRename(fsm->path, rmpath, fsm->mapFlags);
1576 /* XXX shouldn't we take unlink return code here? */
1578 (void) fsmUnlink(rmpath, fsm->mapFlags);
1580 rc = CPIOERR_UNLINK_FAILED;
1582 return (rc ? rc : CPIOERR_ENOENT); /* XXX HACK */
1583 } else if (S_ISDIR(st->st_mode)) {
1584 if (S_ISDIR(ost->st_mode)) return 0;
1585 if (S_ISLNK(ost->st_mode)) {
1586 rc = fsmStat(fsm->path, 0, &fsm->osb);
1587 if (rc == CPIOERR_ENOENT) rc = 0;
1590 if (S_ISDIR(ost->st_mode)) return 0;
1592 } else if (S_ISLNK(st->st_mode)) {
1593 if (S_ISLNK(ost->st_mode)) {
1594 /* XXX NUL terminated result in fsm->rdbuf, len in fsm->rdnb. */
1595 rc = fsmReadLink(fsm->path, fsm->rdbuf, fsm->rdsize, &fsm->rdnb);
1598 /* XXX FSM_PROCESS puts link target to wrbuf. */
1599 if (rstreq(fsm->wrbuf, fsm->rdbuf)) return 0;
1601 } else if (S_ISFIFO(st->st_mode)) {
1602 if (S_ISFIFO(ost->st_mode)) return 0;
1603 } else if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
1604 if ((S_ISCHR(ost->st_mode) || S_ISBLK(ost->st_mode)) &&
1605 (ost->st_rdev == st->st_rdev)) return 0;
1606 } else if (S_ISSOCK(st->st_mode)) {
1607 if (S_ISSOCK(ost->st_mode)) return 0;
1609 /* XXX shouldn't do this with commit/undo. */
1611 if (fsm->stage == FSM_PROCESS) rc = fsmUnlink(fsm->path, fsm->mapFlags);
1612 if (rc == 0) rc = CPIOERR_ENOENT;
1613 return (rc ? rc : CPIOERR_ENOENT); /* XXX HACK */
1616 /********************************************************************/
1618 #define IS_DEV_LOG(_x) \
1619 ((_x) != NULL && strlen(_x) >= (sizeof("/dev/log")-1) && \
1620 rstreqn((_x), "/dev/log", sizeof("/dev/log")-1) && \
1621 ((_x)[sizeof("/dev/log")-1] == '\0' || \
1622 (_x)[sizeof("/dev/log")-1] == ';'))
1625 * File state machine driver.
1626 * @param fsm file state machine
1627 * @param stage next stage
1628 * @return 0 on success
1630 static int fsmStage(FSM_t fsm, fileStage stage)
1632 static int modulo = 4;
1633 const char * const cur = fileStageString(stage);
1634 struct stat * st = &fsm->sb;
1635 struct stat * ost = &fsm->osb;
1636 int saveerrno = errno;
1640 #define _fafilter(_a) \
1641 (!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \
1642 ? fileActionString(_a) : "")
1644 if (stage & FSM_DEAD) {
1646 } else if (stage & FSM_INTERNAL) {
1647 if (_fsm_debug && !(stage & FSM_SYSCALL))
1648 rpmlog(RPMLOG_DEBUG, " %8s %06o%3d (%4d,%4d)%10d %s %s\n",
1650 (unsigned)st->st_mode, (int)st->st_nlink,
1651 (int)st->st_uid, (int)st->st_gid, (int)st->st_size,
1652 (fsm->path ? fsm->path : ""),
1653 _fafilter(fsm->action));
1656 if (_fsm_debug || !(stage & FSM_VERBOSE))
1657 rpmlog(RPMLOG_DEBUG, "%-8s %06o%3d (%4d,%4d)%10d %s %s\n",
1659 (unsigned)st->st_mode, (int)st->st_nlink,
1660 (int)st->st_uid, (int)st->st_gid, (int)st->st_size,
1661 (fsm->path ? fsm->path : ""),
1662 _fafilter(fsm->action));
1669 case FSM_PKGINSTALL:
1671 /* Clean fsm, free'ing memory. Read next archive header. */
1674 /* Exit on end-of-payload. */
1675 if (rc == CPIOERR_HDR_TRAILER) {
1680 /* Exit on error. */
1683 (void) fsmNext(fsm, FSM_UNDO);
1687 /* Extract file from archive. */
1688 rc = fsmNext(fsm, FSM_PROCESS);
1690 (void) fsmNext(fsm, FSM_UNDO);
1694 /* Notify on success. */
1695 (void) fsmNext(fsm, FSM_NOTIFY);
1697 rc = fsmNext(fsm, FSM_FINI);
1705 /* Clean fsm, free'ing memory. */
1708 /* Exit on end-of-payload. */
1709 if (rc == CPIOERR_HDR_TRAILER) {
1714 /* Rename/erase next item. */
1715 if (fsmNext(fsm, FSM_FINI))
1718 /* Notify on success. */
1719 (void) fsmNext(fsm, FSM_NOTIFY);
1727 /* Exit on end-of-payload. */
1728 if (rc == CPIOERR_HDR_TRAILER) {
1733 /* Exit on error. */
1736 (void) fsmNext(fsm, FSM_UNDO);
1740 /* Copy file into archive. */
1741 rc = fsmNext(fsm, FSM_PROCESS);
1743 (void) fsmNext(fsm, FSM_UNDO);
1747 if (fsmNext(fsm, FSM_FINI))
1751 /* Flush partial sets of hard linked files. */
1752 rc = writeLinks(fsm);
1755 rc = cpioTrailerWrite(fsm);
1759 if (fsm->postpone) {
1760 if (fsm->goal == FSM_PKGINSTALL)
1761 rc = fsmNext(fsm, FSM_EAT);
1765 if (fsm->goal == FSM_PKGBUILD) {
1766 if (fsm->fflags & RPMFILE_GHOST) /* XXX Don't if %ghost file. */
1768 /* Hardlinks are handled later */
1769 if (!(S_ISREG(st->st_mode) && st->st_nlink > 1)) {
1770 rc = writeFile(fsm, 1);
1775 if (fsm->goal != FSM_PKGINSTALL)
1778 if (S_ISREG(st->st_mode)) {
1779 char * path = fsm->path;
1781 fsm->path = fsmFsPath(fsm, st, NULL, NULL);
1782 rc = fsmVerify(fsm);
1784 if (rc == 0 && fsm->osuffix) {
1785 char * spath = fsmFsPath(fsm, st, NULL, fsm->osuffix);
1786 rc = fsmRename(fsm->path, spath, fsm->mapFlags);
1788 rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"),
1797 if (!(rc == CPIOERR_ENOENT)) return rc;
1798 rc = expandRegular(fsm);
1799 } else if (S_ISDIR(st->st_mode)) {
1800 rc = fsmVerify(fsm);
1801 if (rc == CPIOERR_ENOENT) {
1802 mode_t mode = st->st_mode;
1805 rc = fsmMkdir(fsm->path, mode);
1807 } else if (S_ISLNK(st->st_mode)) {
1808 if ((st->st_size + 1) > fsm->rdsize) {
1809 rc = CPIOERR_HDR_SIZE;
1813 fsm->wrlen = st->st_size;
1814 rc = fsmNext(fsm, FSM_DREAD);
1815 if (!rc && fsm->rdnb != fsm->wrlen)
1816 rc = CPIOERR_READ_FAILED;
1819 fsm->wrbuf[st->st_size] = '\0';
1820 /* XXX fsmVerify() assumes link target in fsm->wrbuf */
1821 rc = fsmVerify(fsm);
1822 if (rc == CPIOERR_ENOENT) {
1823 rc = fsmSymlink(fsm->wrbuf, fsm->path);
1825 } else if (S_ISFIFO(st->st_mode)) {
1826 /* This mimics cpio S_ISSOCK() behavior but probably isnt' right */
1827 rc = fsmVerify(fsm);
1828 if (rc == CPIOERR_ENOENT) {
1829 rc = fsmMkfifo(fsm->path, 0000);
1831 } else if (S_ISCHR(st->st_mode) ||
1832 S_ISBLK(st->st_mode) ||
1833 S_ISSOCK(st->st_mode))
1835 rc = fsmVerify(fsm);
1836 if (rc == CPIOERR_ENOENT) {
1837 rc = fsmMknod(fsm->path, fsm->sb.st_mode, fsm->sb.st_rdev);
1840 /* XXX Special case /dev/log, which shouldn't be packaged anyways */
1841 if (!IS_DEV_LOG(fsm->path))
1842 rc = CPIOERR_UNKNOWN_FILETYPE;
1844 if (S_ISREG(st->st_mode) && st->st_nlink > 1) {
1845 fsm->li->createdPath = fsm->li->linkIndex;
1846 rc = fsmMakeLinks(fsm);
1851 case FSM_NOTIFY: /* XXX move from fsm to psm -> tsm */
1852 if (fsm->goal == FSM_PKGINSTALL) {
1853 rpmpsmNotify(fsm->psm, RPMCALLBACK_INST_PROGRESS, fsm->cpioPos);
1854 } else if (fsm->goal == FSM_PKGERASE) {
1855 /* On erase we're iterating backwards, fixup for progress */
1856 rpm_loff_t amount = (fsm->ix >= 0) ?
1857 rpmfiFC(fsmGetFi(fsm)) - fsm->ix : 0;
1858 rpmpsmNotify(fsm->psm, RPMCALLBACK_UNINST_PROGRESS, amount);
1864 if (fsm->goal == FSM_PKGINSTALL) {
1865 /* XXX only erase if temp fn w suffix is in use */
1867 if (S_ISDIR(st->st_mode)) {
1868 (void) fsmRmdir(fsm->path);
1870 (void) fsmUnlink(fsm->path, fsm->mapFlags);
1875 if (fsm->failedFile && *fsm->failedFile == NULL)
1876 *fsm->failedFile = xstrdup(fsm->path);
1879 if (!fsm->postpone) {
1880 if (fsm->goal == FSM_PKGINSTALL)
1881 rc = ((S_ISREG(st->st_mode) && st->st_nlink > 1)
1882 ? fsmCommitLinks(fsm) : fsmNext(fsm, FSM_COMMIT));
1883 if (fsm->goal == FSM_PKGERASE)
1884 rc = fsmNext(fsm, FSM_COMMIT);
1886 fsm->path = _free(fsm->path);
1887 memset(st, 0, sizeof(*st));
1888 memset(ost, 0, sizeof(*ost));
1891 /* Rename pre-existing modified or unmanaged file. */
1892 if (fsm->osuffix && fsm->diskchecked &&
1893 (fsm->exists || (fsm->goal == FSM_PKGINSTALL && S_ISREG(st->st_mode))))
1895 char * opath = fsmFsPath(fsm, st, NULL, NULL);
1896 char * path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
1897 rc = fsmRename(opath, path, fsm->mapFlags);
1899 rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"), opath, path);
1905 /* Remove erased files. */
1906 if (fsm->goal == FSM_PKGERASE) {
1907 if (fsm->action == FA_ERASE) {
1908 rpmte te = fsmGetTe(fsm);
1909 if (S_ISDIR(st->st_mode)) {
1910 rc = fsmRmdir(fsm->path);
1913 case CPIOERR_ENOENT: /* XXX rmdir("/") linux 2.2.x kernel hack */
1914 case CPIOERR_ENOTEMPTY:
1915 /* XXX make sure that build side permits %missingok on directories. */
1916 if (fsm->fflags & RPMFILE_MISSINGOK)
1919 /* XXX common error message. */
1921 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1922 _("%s rmdir of %s failed: Directory not empty\n"),
1923 rpmteTypeString(te), fsm->path);
1927 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1928 _("%s rmdir of %s failed: %s\n"),
1929 rpmteTypeString(te), fsm->path, strerror(errno));
1933 rc = fsmUnlink(fsm->path, fsm->mapFlags);
1936 case CPIOERR_ENOENT:
1937 if (fsm->fflags & RPMFILE_MISSINGOK)
1941 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1942 _("%s unlink of %s failed: %s\n"),
1943 rpmteTypeString(te), fsm->path, strerror(errno));
1948 /* XXX Failure to remove is not (yet) cause for failure. */
1949 if (!strict_erasures) rc = 0;
1953 /* XXX Special case /dev/log, which shouldn't be packaged anyways */
1954 if (!S_ISSOCK(st->st_mode) && !IS_DEV_LOG(fsm->path)) {
1955 /* Rename temporary to final file name. */
1956 if (!S_ISDIR(st->st_mode) && (fsm->suffix || fsm->nsuffix)) {
1957 char *npath = fsmFsPath(fsm, st, NULL, fsm->nsuffix);
1958 rc = fsmRename(fsm->path, npath, fsm->mapFlags);
1959 if (!rc && fsm->nsuffix) {
1960 char * opath = fsmFsPath(fsm, st, NULL, NULL);
1961 rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),
1968 /* Set file security context (if enabled) */
1969 if (!rc && !getuid()) {
1970 rc = fsmSetSELabel(fsm->sehandle, fsm->path, fsm->sb.st_mode);
1972 if (S_ISLNK(st->st_mode)) {
1973 if (!rc && !getuid())
1974 rc = fsmLChown(fsm->path, fsm->sb.st_uid, fsm->sb.st_gid);
1976 rpmfi fi = fsmGetFi(fsm);
1977 if (!rc && !getuid())
1978 rc = fsmChown(fsm->path, fsm->sb.st_uid, fsm->sb.st_gid);
1980 rc = fsmChmod(fsm->path, fsm->sb.st_mode);
1982 rc = fsmUtime(fsm->path, rpmfiFMtimeIndex(fi, fsm->ix));
1983 /* utime error is not critical for directories */
1984 if (rc && S_ISDIR(st->st_mode))
1987 /* Set file capabilities (if enabled) */
1988 if (!rc && !S_ISDIR(st->st_mode) && !getuid()) {
1989 rc = fsmSetFCaps(fsm->path, rpmfiFCapsIndex(fi, fsm->ix));
1994 /* Notify on success. */
1995 if (!rc) rc = fsmNext(fsm, FSM_NOTIFY);
1996 else if (fsm->failedFile && *fsm->failedFile == NULL) {
1997 *fsm->failedFile = fsm->path;
2002 fsm->path = _free(fsm->path);
2004 /* Check for hard links missing from payload. */
2005 while ((fsm->li = fsm->links) != NULL) {
2006 fsm->links = fsm->li->next;
2007 fsm->li->next = NULL;
2008 if (fsm->goal == FSM_PKGINSTALL && fsm->li->linksLeft) {
2009 for (nlink_t i = 0 ; i < fsm->li->linksLeft; i++) {
2010 if (fsm->li->filex[i] < 0)
2012 rc = CPIOERR_MISSING_HARDLINK;
2013 if (fsm->failedFile && *fsm->failedFile == NULL) {
2014 fsm->ix = fsm->li->filex[i];
2015 if (!fsmMapPath(fsm)) {
2016 /* Out-of-sync hardlinks handled as sub-state */
2017 *fsm->failedFile = fsm->path;
2024 fsm->li = freeHardLink(fsm->li);
2026 fsm->rdbuf = fsm->rdb = _free(fsm->rdb);
2027 fsm->wrbuf = fsm->wrb = _free(fsm->wrb);
2030 rc = fsmNext(fsm, FSM_POS);
2032 rc = cpioHeaderRead(fsm, st); /* Read next payload header. */
2034 if (rstreq(fsm->path, CPIO_TRAILER)) { /* Detect end-of-payload. */
2035 fsm->path = _free(fsm->path);
2036 rc = CPIOERR_HDR_TRAILER;
2039 rc = fsmNext(fsm, FSM_POS);
2042 for (left = st->st_size; left > 0; left -= fsm->rdnb) {
2043 fsm->wrlen = (left > fsm->wrsize ? fsm->wrsize : left);
2044 rc = fsmNext(fsm, FSM_DREAD);
2050 left = (modulo - (fsm->cpioPos % modulo)) % modulo;
2053 (void) fsmNext(fsm, FSM_DREAD);
2057 left = (modulo - (fsm->cpioPos % modulo)) % modulo;
2059 memset(fsm->rdbuf, 0, left);
2060 /* XXX DWRITE uses rdnb for I/O length. */
2062 (void) fsmNext(fsm, FSM_DWRITE);
2066 fsm->rdnb = Fread(fsm->wrbuf, sizeof(*fsm->wrbuf), fsm->wrlen, fsm->cfd);
2067 if (_fsm_debug && (stage & FSM_SYSCALL))
2068 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, cfd)\trdnb %d\n",
2069 cur, (fsm->wrbuf == fsm->wrb ? "wrbuf" : "mmap"),
2070 (int)fsm->wrlen, (int)fsm->rdnb);
2071 if (fsm->rdnb != fsm->wrlen || Ferror(fsm->cfd))
2072 rc = CPIOERR_READ_FAILED;
2074 fsm->cpioPos += fsm->rdnb;
2077 fsm->wrnb = Fwrite(fsm->rdbuf, sizeof(*fsm->rdbuf), fsm->rdnb, fsm->cfd);
2078 if (_fsm_debug && (stage & FSM_SYSCALL))
2079 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, cfd)\twrnb %d\n",
2080 cur, (fsm->rdbuf == fsm->rdb ? "rdbuf" : "mmap"),
2081 (int)fsm->rdnb, (int)fsm->wrnb);
2082 if (fsm->rdnb != fsm->wrnb || Ferror(fsm->cfd))
2083 rc = CPIOERR_WRITE_FAILED;
2085 fsm->cpioPos += fsm->wrnb;
2092 if (!(stage & FSM_INTERNAL)) {
2093 fsm->rc = (rc == CPIOERR_HDR_TRAILER ? 0 : rc);
2099 * Return formatted string representation of file disposition.
2100 * @param a file dispostion
2101 * @return formatted string
2103 static const char * fileActionString(rpmFileAction a)
2106 case FA_UNKNOWN: return "unknown";
2107 case FA_CREATE: return "create";
2108 case FA_COPYOUT: return "copyout";
2109 case FA_COPYIN: return "copyin";
2110 case FA_BACKUP: return "backup";
2111 case FA_SAVE: return "save";
2112 case FA_SKIP: return "skip";
2113 case FA_ALTNAME: return "altname";
2114 case FA_ERASE: return "erase";
2115 case FA_SKIPNSTATE: return "skipnstate";
2116 case FA_SKIPNETSHARED: return "skipnetshared";
2117 case FA_SKIPCOLOR: return "skipcolor";
2118 default: return "???";
2123 * Return formatted string representation of file stages.
2124 * @param a file stage
2125 * @return formatted string
2127 static const char * fileStageString(fileStage a)
2130 case FSM_UNKNOWN: return "unknown";
2132 case FSM_PKGINSTALL:return "INSTALL";
2133 case FSM_PKGERASE: return "ERASE";
2134 case FSM_PKGBUILD: return "BUILD";
2135 case FSM_PKGUNDO: return "UNDO";
2137 case FSM_CREATE: return "create";
2138 case FSM_INIT: return "init";
2139 case FSM_MAP: return "map";
2140 case FSM_MKDIRS: return "mkdirs";
2141 case FSM_RMDIRS: return "rmdirs";
2142 case FSM_PRE: return "pre";
2143 case FSM_PROCESS: return "process";
2144 case FSM_POST: return "post";
2145 case FSM_MKLINKS: return "mklinks";
2146 case FSM_NOTIFY: return "notify";
2147 case FSM_UNDO: return "undo";
2148 case FSM_FINI: return "fini";
2149 case FSM_COMMIT: return "commit";
2150 case FSM_DESTROY: return "destroy";
2151 case FSM_VERIFY: return "verify";
2153 case FSM_UNLINK: return "unlink";
2154 case FSM_RENAME: return "rename";
2155 case FSM_MKDIR: return "mkdir";
2156 case FSM_RMDIR: return "rmdir";
2157 case FSM_LSETFCON: return "lsetfcon";
2158 case FSM_CHOWN: return "chown";
2159 case FSM_LCHOWN: return "lchown";
2160 case FSM_CHMOD: return "chmod";
2161 case FSM_UTIME: return "utime";
2162 case FSM_SYMLINK: return "symlink";
2163 case FSM_LINK: return "link";
2164 case FSM_MKFIFO: return "mkfifo";
2165 case FSM_MKNOD: return "mknod";
2166 case FSM_LSTAT: return "lstat";
2167 case FSM_STAT: return "stat";
2168 case FSM_READLINK: return "readlink";
2169 case FSM_SETCAP: return "setcap";
2171 case FSM_NEXT: return "next";
2172 case FSM_EAT: return "eat";
2173 case FSM_POS: return "pos";
2174 case FSM_PAD: return "pad";
2175 case FSM_TRAILER: return "trailer";
2176 case FSM_HREAD: return "hread";
2177 case FSM_HWRITE: return "hwrite";
2178 case FSM_DREAD: return "Fread";
2179 case FSM_DWRITE: return "Fwrite";
2181 default: return "???";
2185 int rpmfsmRun(fileStage goal, rpmts ts, rpmte te, rpmfi fi, FD_t cfd,
2186 rpmpsm psm, rpm_loff_t * archiveSize, char ** failedFile)
2192 memset(&fsm, 0, sizeof(fsm));
2193 sc = fsmSetup(&fsm, goal, ts, te, fi, cfd, psm, archiveSize, failedFile);
2194 ec = fsmTeardown(&fsm);
2196 /* Return the relevant code: if setup failed, teardown doesn't matter */
2197 return (sc ? sc : ec);