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 * File name and stat information.
69 char * path; /*!< Current file name. */
70 FD_t cfd; /*!< Payload file handle. */
71 rpmcpio_t archive; /*!< cpio archive */
72 char * buf; /*!< read: Buffer. */
73 size_t bufsize; /*!< read: Buffer allocated size. */
74 FSMI_t iter; /*!< File iterator. */
75 int ix; /*!< Current file iterator index. */
76 hardLink_t links; /*!< Pending hard linked file(s). */
77 hardLink_t li; /*!< Current hard linked file(s). */
78 rpm_loff_t * archiveSize; /*!< Pointer to archive size. */
79 char ** failedFile; /*!< First file name that failed. */
80 const char * osuffix; /*!< Old, preserved, file suffix. */
81 const char * nsuffix; /*!< New, created, file suffix. */
82 char * suffix; /*!< Current file suffix. */
83 int postpone; /*!< Skip remaining stages? */
84 int diskchecked; /*!< Has stat(2) been performed? */
85 int exists; /*!< Does current file exist on disk? */
86 int rc; /*!< External file stage return code. */
87 cpioMapFlags mapFlags; /*!< Bit(s) to control mapping. */
88 const char * dirName; /*!< File directory name. */
89 const char * baseName; /*!< File base name. */
90 struct selabel_handle *sehandle; /*!< SELinux label handle (if any). */
92 unsigned fflags; /*!< File flags. */
93 rpmFileAction action; /*!< File disposition. */
94 fileStage goal; /*!< Package state machine goal. */
95 fileStage stage; /*!< External file stage. */
96 fileStage nstage; /*!< Next file stage. */
97 struct stat sb; /*!< Current file stat(2) info. */
98 struct stat osb; /*!< Original file stat(2) info. */
100 rpmpsm psm; /*!< "parent" package state machine */
105 * Retrieve transaction set from file state machine iterator.
106 * @param fsm file state machine
107 * @return transaction set
109 static rpmts fsmGetTs(const FSM_t fsm)
111 const FSMI_t iter = fsm->iter;
112 return (iter ? iter->ts : NULL);
116 * Retrieve transaction element file info from file state machine iterator.
117 * @param fsm file state machine
118 * @return transaction element file info
120 static rpmfi fsmGetFi(const FSM_t fsm)
122 const FSMI_t iter = fsm->iter;
123 return (iter ? iter->fi : NULL);
126 static rpmte fsmGetTe(const FSM_t fsm)
128 const FSMI_t iter = fsm->iter;
129 return (iter ? iter->te : NULL);
132 #define SUFFIX_RPMORIG ".rpmorig"
133 #define SUFFIX_RPMSAVE ".rpmsave"
134 #define SUFFIX_RPMNEW ".rpmnew"
136 /* Default directory and file permissions if not mapped */
137 #define _dirPerms 0755
138 #define _filePerms 0644
141 * XXX Forward declarations for previously exported functions to avoid moving
142 * things around needlessly
144 static const char * fileStageString(fileStage a);
145 static const char * fileActionString(rpmFileAction a);
146 static int fsmStage(FSM_t fsm, fileStage stage);
149 * Build path to file from file info, ornamented with subdir and suffix.
150 * @param fsm file state machine data
151 * @param st file stat info
152 * @param subdir subdir to use (NULL disables)
153 * @param suffix suffix to use (NULL disables)
154 * @retval path to file (malloced)
156 static char * fsmFsPath(const FSM_t fsm,
157 const struct stat * st,
164 int isDir = (st && S_ISDIR(st->st_mode));
165 s = rstrscat(NULL, fsm->dirName,
166 (!isDir && subdir) ? subdir : "",
168 (!isDir && suffix) ? suffix : "",
175 * Destroy file info iterator.
176 * @param p file info iterator
177 * @retval NULL always
179 static FSMI_t mapFreeIterator(FSMI_t iter)
182 iter->ts = rpmtsFree(iter->ts);
183 iter->te = NULL; /* XXX rpmte is not refcounted yet */
184 iter->fi = rpmfiFree(iter->fi);
191 * Create file info iterator.
192 * @param ts transaction set
193 * @param fi transaction element file info
194 * @return file info iterator
197 mapInitIterator(rpmts ts, rpmte te, rpmfi fi)
201 iter = xcalloc(1, sizeof(*iter));
202 iter->ts = rpmtsLink(ts);
203 iter->te = te; /* XXX rpmte is not refcounted yet */
204 iter->fi = rpmfiLink(fi);
205 iter->reverse = (rpmteType(te) == TR_REMOVED);
206 iter->i = (iter->reverse ? (rpmfiFC(fi) - 1) : 0);
207 iter->isave = iter->i;
212 * Return next index into file info.
213 * @param a file info iterator
214 * @return next index, -1 on termination
216 static int mapNextIterator(FSMI_t iter)
221 const rpmfi fi = iter->fi;
223 if (iter->i >= 0) i = iter->i--;
225 if (iter->i < rpmfiFC(fi)) i = iter->i++;
234 static int cpioStrCmp(const void * a, const void * b)
236 const char * afn = *(const char **)a;
237 const char * bfn = *(const char **)b;
239 /* Match rpm-4.0 payloads with ./ prefixes. */
240 if (afn[0] == '.' && afn[1] == '/') afn += 2;
241 if (bfn[0] == '.' && bfn[1] == '/') bfn += 2;
243 /* If either path is absolute, make it relative. */
244 if (afn[0] == '/') afn += 1;
245 if (bfn[0] == '/') bfn += 1;
247 return strcmp(afn, bfn);
251 * Locate archive path in file info.
252 * @param iter file info iterator
253 * @param fsmPath archive path
254 * @return index into file info, -1 if archive path was not found
256 static int mapFind(FSMI_t iter, const char * fsmPath)
261 const rpmfi fi = iter->fi;
262 int fc = rpmfiFC(fi);
263 if (fi && fc > 0 && fi->apath && fsmPath && *fsmPath) {
266 if (fi->apath != NULL)
267 p = bsearch(&fsmPath, fi->apath, fc, sizeof(fsmPath),
270 iter->i = p - fi->apath;
271 ix = mapNextIterator(iter);
279 * Directory name iterator.
281 typedef struct dnli_s {
290 * Destroy directory name iterator.
291 * @param a directory name iterator
292 * @retval NULL always
294 static DNLI_t dnlFreeIterator(DNLI_t dnli)
297 if (dnli->active) free(dnli->active);
305 static inline int dnlCount(const DNLI_t dnli)
307 return (dnli ? rpmfiDC(dnli->fi) : 0);
312 static inline int dnlIndex(const DNLI_t dnli)
314 return (dnli ? dnli->isave : -1);
318 * Create directory name iterator.
319 * @param fsm file state machine data
320 * @param reverse traverse directory names in reverse order?
321 * @return directory name iterator
323 static DNLI_t dnlInitIterator(const FSM_t fsm, int reverse)
325 rpmfi fi = fsmGetFi(fsm);
326 rpmfs fs = rpmteGetFileStates(fsmGetTe(fsm));
334 dnli = xcalloc(1, sizeof(*dnli));
336 dnli->reverse = reverse;
337 dnli->i = (reverse ? dc : 0);
340 dnli->active = xcalloc(dc, sizeof(*dnli->active));
341 int fc = rpmfiFC(fi);
343 /* Identify parent directories not skipped. */
344 for (i = 0; i < fc; i++)
345 if (!XFA_SKIPPING(rpmfsGetAction(fs, i)))
346 dnli->active[rpmfiDIIndex(fi, i)] = 1;
348 /* Exclude parent directories that are explicitly included. */
349 for (i = 0; i < fc; i++) {
353 if (!S_ISDIR(rpmfiFModeIndex(fi, i)))
356 dil = rpmfiDIIndex(fi, i);
357 dnlen = strlen(rpmfiDNIndex(fi, dil));
358 bnlen = strlen(rpmfiBNIndex(fi, i));
360 for (j = 0; j < dc; j++) {
364 if (!dnli->active[j] || j == dil)
366 dnl = rpmfiDNIndex(fi, j);
368 if (jlen != (dnlen+bnlen+1))
370 if (!rstreqn(dnl, rpmfiDNIndex(fi, dil), dnlen))
372 if (!rstreqn(dnl+dnlen, rpmfiBNIndex(fi, i), bnlen))
374 if (dnl[dnlen+bnlen] != '/' || dnl[dnlen+bnlen+1] != '\0')
376 /* This directory is included in the package. */
382 /* Print only once per package. */
385 for (i = 0; i < dc; i++) {
386 if (!dnli->active[i]) continue;
390 "========== Directories not explicitly included in package:\n");
392 rpmlog(RPMLOG_DEBUG, "%10d %s\n", i, rpmfiDNIndex(fi, i));
395 rpmlog(RPMLOG_DEBUG, "==========\n");
402 * Return next directory name (from file info).
403 * @param dnli directory name iterator
404 * @return next directory name
407 const char * dnlNextIterator(DNLI_t dnli)
409 const char * dn = NULL;
413 int dc = rpmfiDC(fi);
418 i = (!dnli->reverse ? dnli->i++ : --dnli->i);
419 } while (i >= 0 && i < dc && !dnli->active[i]);
421 if (i >= 0 && i < dc)
422 dn = rpmfiDNIndex(fi, i);
430 static int fsmNext(FSM_t fsm, fileStage nstage)
432 fsm->nstage = nstage;
433 return fsmStage(fsm, fsm->nstage);
437 * Map next file path and action.
438 * @param fsm file state machine
440 static int fsmMapPath(FSM_t fsm)
442 rpmfi fi = fsmGetFi(fsm); /* XXX const except for fstates */
448 fsm->action = FA_UNKNOWN;
451 if (fi && i >= 0 && i < rpmfiFC(fi)) {
452 rpmte te = fsmGetTe(fsm);
453 rpmfs fs = rpmteGetFileStates(te);
454 /* XXX these should use rpmfiFFlags() etc */
455 fsm->action = rpmfsGetAction(fs, i);
456 fsm->fflags = rpmfiFFlagsIndex(fi, i);
458 /* src rpms have simple base name in payload. */
459 fsm->dirName = rpmfiDNIndex(fi, rpmfiDIIndex(fi, i));
460 fsm->baseName = rpmfiBNIndex(fi, i);
462 if (rpmteType(te) == TR_ADDED) {
463 switch (fsm->action) {
465 rpmfsSetState(fs, i, RPMFILE_STATE_NOTINSTALLED);
467 case FA_SKIPNETSHARED:
468 rpmfsSetState(fs, i, RPMFILE_STATE_NETSHARED);
471 rpmfsSetState(fs, i, RPMFILE_STATE_WRONGCOLOR);
474 if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
475 fsm->nsuffix = SUFFIX_RPMNEW;
478 if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
479 fsm->osuffix = SUFFIX_RPMSAVE;
486 if (fsm->action == FA_BACKUP && !(fsm->fflags & RPMFILE_GHOST)) {
487 /* XXX Don't if %ghost file. */
488 fsm->osuffix = (rpmteType(te) == TR_ADDED) ? SUFFIX_RPMORIG : SUFFIX_RPMSAVE;
491 if ((fsm->mapFlags & CPIO_MAP_PATH) || fsm->nsuffix) {
492 const struct stat * st = &fsm->sb;
493 fsm->path = _free(fsm->path);
494 fsm->path = fsmFsPath(fsm, st, NULL,
495 (fsm->suffix ? fsm->suffix : fsm->nsuffix));
502 * Save hard link in chain.
503 * @param fsm file state machine data
504 * @return Is chain only partially filled?
506 static int saveHardLink(FSM_t fsm)
508 struct stat * st = &fsm->sb;
513 /* Find hard link set. */
514 for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
515 if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
519 /* New hard link encountered, add new link to set. */
520 if (fsm->li == NULL) {
521 fsm->li = xcalloc(1, sizeof(*fsm->li));
522 fsm->li->next = NULL;
523 fsm->li->sb = *st; /* structure assignment */
524 fsm->li->nlink = st->st_nlink;
525 fsm->li->linkIndex = fsm->ix;
526 fsm->li->createdPath = -1;
528 fsm->li->filex = xcalloc(st->st_nlink, sizeof(fsm->li->filex[0]));
529 memset(fsm->li->filex, -1, (st->st_nlink * sizeof(fsm->li->filex[0])));
530 fsm->li->nsuffix = xcalloc(st->st_nlink, sizeof(*fsm->li->nsuffix));
532 if (fsm->goal == FSM_PKGBUILD)
533 fsm->li->linksLeft = st->st_nlink;
534 if (fsm->goal == FSM_PKGINSTALL)
535 fsm->li->linksLeft = 0;
537 fsm->li->next = fsm->links;
538 fsm->links = fsm->li;
541 if (fsm->goal == FSM_PKGBUILD) --fsm->li->linksLeft;
542 fsm->li->filex[fsm->li->linksLeft] = fsm->ix;
543 fsm->li->nsuffix[fsm->li->linksLeft] = fsm->nsuffix;
544 if (fsm->goal == FSM_PKGINSTALL) fsm->li->linksLeft++;
546 if (fsm->goal == FSM_PKGBUILD)
547 return (fsm->li->linksLeft > 0);
549 if (fsm->goal != FSM_PKGINSTALL)
552 if (!(st->st_size || fsm->li->linksLeft == st->st_nlink))
555 /* Here come the bits, time to choose a non-skipped file name. */
556 { rpmfs fs = rpmteGetFileStates(fsmGetTe(fsm));
558 for (j = fsm->li->linksLeft - 1; j >= 0; j--) {
559 ix = fsm->li->filex[j];
560 if (ix < 0 || XFA_SKIPPING(rpmfsGetAction(fs, ix)))
566 /* Are all links skipped or not encountered yet? */
568 return 1; /* XXX W2DO? */
570 /* Save the non-skipped file name and map index. */
571 fsm->li->linkIndex = j;
572 fsm->path = _free(fsm->path);
574 rc = fsmMapPath(fsm);
579 * Destroy set of hard links.
580 * @param li set of hard links
581 * @return NULL always
583 static hardLink_t freeHardLink(hardLink_t li)
586 li->nsuffix = _free(li->nsuffix); /* XXX elements are shared */
587 li->filex = _free(li->filex);
593 /* forward declaration*/
594 static int fsmMkdirs(DNLI_t dnli, struct selabel_handle *sehandle);
596 static int fsmCreate(FSM_t fsm)
599 fsm->path = _free(fsm->path);
601 fsm->buf = _free(fsm->buf);
603 if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
604 fsm->bufsize = 8 * BUFSIZ;
605 fsm->buf = xmalloc(fsm->bufsize);
611 errno = 0; /* XXX get rid of EBADF */
613 /* Detect and create directories not explicitly in package. */
614 /* XXX This seems like a strange place to do this... */
615 if (fsm->goal == FSM_PKGINSTALL) {
616 DNLI_t dnli = dnlInitIterator(fsm, 0);
617 rc = fsmMkdirs(dnli, fsm->sehandle);
618 dnlFreeIterator(dnli);
623 static int fsmSetup(FSM_t fsm, fileStage goal,
624 rpmts ts, rpmte te, rpmfi fi, FD_t cfd, rpmpsm psm,
625 rpm_loff_t * archiveSize, char ** failedFile)
628 int isSrc = rpmteIsSource(te);
632 fsm->cfd = fdLink(cfd);
634 fsm->iter = mapInitIterator(ts, te, fi);
636 fsm->sehandle = rpmtsSELabelHandle(ts);
638 fsm->mapFlags = CPIO_MAP_PATH | CPIO_MAP_MODE | CPIO_MAP_UID | CPIO_MAP_GID;
639 if (goal == FSM_PKGBUILD) {
640 fsm->mapFlags |= CPIO_MAP_TYPE;
642 fsm->mapFlags |= CPIO_FOLLOW_SYMLINKS;
644 fsm->archive = rpmcpioOpen(cfd, O_WRONLY);
647 fsm->mapFlags |= CPIO_SBIT_CHECK;
649 fsm->archive = rpmcpioOpen(cfd, O_RDONLY);
652 fsm->archiveSize = archiveSize;
653 if (fsm->archiveSize)
654 *fsm->archiveSize = 0;
655 fsm->failedFile = failedFile;
657 *fsm->failedFile = NULL;
659 if (fsm->goal == FSM_PKGINSTALL) {
660 rasprintf(&fsm->suffix, ";%08x", (unsigned)rpmtsGetTid(ts));
665 if (rc && !ec) ec = rc;
667 rc = fsmUNSAFE(fsm, fsm->goal);
668 if (rc && !ec) ec = rc;
670 if (fsm->archiveSize && ec == 0)
671 *fsm->archiveSize = rpmcpioTell(fsm->archive);
673 /* FIX: *fsm->failedFile may be NULL */
677 static int fsmTeardown(FSM_t fsm)
682 rc = fsmUNSAFE(fsm, FSM_DESTROY);
684 rc = rpmcpioClose(fsm->archive) || rc;
686 fsm->iter = mapFreeIterator(fsm->iter);
687 if (fsm->cfd != NULL) {
688 fsm->cfd = fdFree(fsm->cfd);
691 fsm->failedFile = NULL;
693 fsm->path = _free(fsm->path);
694 fsm->suffix = _free(fsm->suffix);
695 while ((fsm->li = fsm->links) != NULL) {
696 fsm->links = fsm->li->next;
697 fsm->li->next = NULL;
698 fsm->li = freeHardLink(fsm->li);
703 /* Find and set file security context */
704 static int fsmSetSELabel(struct selabel_handle *sehandle,
705 const char *path, mode_t mode)
710 security_context_t scon = NULL;
712 if (selabel_lookup_raw(sehandle, &scon, path, mode) == 0) {
713 rc = lsetfilecon(path, scon);
715 if (_fsm_debug && (FSM_LSETFCON & FSM_SYSCALL)) {
716 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n",
717 fileStageString(FSM_LSETFCON), path, scon,
718 (rc < 0 ? strerror(errno) : ""));
721 if (rc < 0 && errno == EOPNOTSUPP)
728 return rc ? CPIOERR_LSETFCON_FAILED : 0;
731 static int fsmSetFCaps(const char *path, const char *captxt)
735 if (captxt && *captxt != '\0') {
736 cap_t fcaps = cap_from_text(captxt);
737 if (fcaps == NULL || cap_set_file(path, fcaps) != 0) {
738 rc = CPIOERR_SETCAP_FAILED;
747 * Map file stat(2) info.
748 * @param fsm file state machine
750 static int fsmMapAttrs(FSM_t fsm)
752 struct stat * st = &fsm->sb;
753 rpmfi fi = fsmGetFi(fsm);
756 /* this check is pretty moot, rpmfi accessors check array bounds etc */
757 if (fi && i >= 0 && i < rpmfiFC(fi)) {
758 ino_t finalInode = rpmfiFInodeIndex(fi, i);
759 mode_t finalMode = rpmfiFModeIndex(fi, i);
760 dev_t finalRdev = rpmfiFRdevIndex(fi, i);
761 time_t finalMtime = rpmfiFMtimeIndex(fi, i);
762 const char *user = rpmfiFUserIndex(fi, i);
763 const char *group = rpmfiFGroupIndex(fi, i);
767 if (user && rpmugUid(user, &uid)) {
768 if (fsm->goal == FSM_PKGINSTALL)
769 rpmlog(RPMLOG_WARNING,
770 _("user %s does not exist - using root\n"), user);
771 finalMode &= ~S_ISUID; /* turn off suid bit */
774 if (group && rpmugGid(group, &gid)) {
775 if (fsm->goal == FSM_PKGINSTALL)
776 rpmlog(RPMLOG_WARNING,
777 _("group %s does not exist - using root\n"), group);
778 finalMode &= ~S_ISGID; /* turn off sgid bit */
781 if (fsm->mapFlags & CPIO_MAP_MODE)
782 st->st_mode = (st->st_mode & S_IFMT) | (finalMode & ~S_IFMT);
783 if (fsm->mapFlags & CPIO_MAP_TYPE) {
784 st->st_mode = (st->st_mode & ~S_IFMT) | (finalMode & S_IFMT);
785 if ((S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
786 && st->st_nlink == 0)
788 st->st_ino = finalInode;
789 st->st_rdev = finalRdev;
790 st->st_mtime = finalMtime;
792 if (fsm->mapFlags & CPIO_MAP_UID)
794 if (fsm->mapFlags & CPIO_MAP_GID)
801 * Create file from payload stream.
802 * @param fsm file state machine data
803 * @return 0 on success
805 static int expandRegular(FSM_t fsm)
808 const struct stat * st = &fsm->sb;
809 rpm_loff_t left = st->st_size;
810 const unsigned char * fidigest = NULL;
811 pgpHashAlgo digestalgo = 0;
814 wfd = Fopen(fsm->path, "w.ufdio");
816 rc = CPIOERR_OPEN_FAILED;
820 if (!(rpmtsFlags(fsmGetTs(fsm)) & RPMTRANS_FLAG_NOFILEDIGEST)) {
821 rpmfi fi = fsmGetFi(fsm);
822 digestalgo = rpmfiDigestAlgo(fi);
823 fidigest = rpmfiFDigestIndex(fi, fsm->ix, NULL, NULL);
826 if (st->st_size > 0 && fidigest)
827 fdInitDigest(wfd, digestalgo, 0);
831 len = (left > fsm->bufsize ? fsm->bufsize : left);
832 if (rpmcpioRead(fsm->archive, fsm->buf, len) != len) {
833 rc = CPIOERR_READ_FAILED;
836 if ((Fwrite(fsm->buf, sizeof(*fsm->buf), len, wfd) != len) || Ferror(wfd)) {
837 rc = CPIOERR_WRITE_FAILED;
843 /* don't call this with fileSize == fileComplete */
845 rpmpsmNotify(fsm->psm, RPMCALLBACK_INST_PROGRESS, rpmcpioTell(fsm->archive));
848 if (st->st_size > 0 && fidigest) {
849 void * digest = NULL;
852 fdFiniDigest(wfd, digestalgo, &digest, NULL, 0);
854 if (digest != NULL && fidigest != NULL) {
855 size_t diglen = rpmDigestLength(digestalgo);
856 if (memcmp(digest, fidigest, diglen)) {
857 rc = CPIOERR_DIGEST_MISMATCH;
860 rc = CPIOERR_DIGEST_MISMATCH;
868 rpmswAdd(rpmtsOp(fsmGetTs(fsm), RPMTS_OP_DIGEST),
869 fdOp(wfd, FDSTAT_DIGEST));
876 static int fsmReadLink(const char *path,
877 char *buf, size_t bufsize, size_t *linklen)
879 ssize_t llen = readlink(path, buf, bufsize - 1);
880 int rc = CPIOERR_READLINK_FAILED;
882 if (_fsm_debug && (FSM_READLINK & FSM_SYSCALL)) {
883 rpmlog(RPMLOG_DEBUG, " %8s (%s, buf, %d) %s\n",
884 fileStageString(FSM_READLINK),
885 path, (int)(bufsize -1), (llen < 0 ? strerror(errno) : ""));
897 * Write next item to payload stream.
898 * @param fsm file state machine data
899 * @param writeData should data be written?
900 * @return 0 on success
902 static int writeFile(FSM_t fsm, int writeData)
905 char * path = fsm->path;
906 struct stat * st = &fsm->sb;
907 struct stat * ost = &fsm->osb;
908 char * symbuf = NULL;
912 st->st_size = (writeData ? ost->st_size : 0);
914 if (S_ISDIR(st->st_mode)) {
916 } else if (S_ISLNK(st->st_mode)) {
918 * While linux puts the size of a symlink in the st_size field,
919 * I don't think that's a specified standard.
922 rc = fsmReadLink(fsm->path, fsm->buf, fsm->bufsize, &linklen);
924 st->st_size = linklen;
925 rstrcat(&symbuf, fsm->buf); /* XXX save readlink return. */
928 if (fsm->mapFlags & CPIO_MAP_ABSOLUTE) {
929 fsm->path = rstrscat(NULL, (fsm->mapFlags & CPIO_MAP_ADDDOT) ? "." : "",
930 fsm->dirName, fsm->baseName, NULL);
931 } else if (fsm->mapFlags & CPIO_MAP_PATH) {
932 rpmfi fi = fsmGetFi(fsm);
933 fsm->path = xstrdup((fi->apath ? fi->apath[fsm->ix] :
934 rpmfiBNIndex(fi, fsm->ix)));
937 rc = rpmcpioHeaderWrite(fsm->archive, fsm->path, st);
944 if (writeData && S_ISREG(st->st_mode)) {
948 void * mapped = MAP_FAILED;
953 rfd = Fopen(fsm->path, "r.ufdio");
955 rc = CPIOERR_OPEN_FAILED;
959 /* XXX unbuffered mmap generates *lots* of fdio debugging */
962 mapped = mmap(NULL, st->st_size, PROT_READ, MAP_SHARED, Fileno(rfd), 0);
963 if (mapped != MAP_FAILED) {
965 fsm->buf = (char *) mapped;
966 len = nmapped = st->st_size;
967 #if defined(MADV_DONTNEED)
968 xx = madvise(mapped, nmapped, MADV_DONTNEED);
977 if (mapped != MAP_FAILED) {
982 len = (left > fsm->bufsize ? fsm->bufsize : left);
983 if (Fread(fsm->buf, sizeof(*fsm->buf), len, rfd) != len || Ferror(rfd)) {
984 rc = CPIOERR_READ_FAILED;
989 if (rpmcpioWrite(fsm->archive, fsm->buf, len) != len) {
990 rc = CPIOERR_WRITE_FAILED;
997 if (mapped != MAP_FAILED) {
998 xx = msync(mapped, nmapped, MS_ASYNC);
999 #if defined(MADV_DONTNEED)
1000 xx = madvise(mapped, nmapped, MADV_DONTNEED);
1002 xx = munmap(mapped, nmapped);
1007 } else if (writeData && S_ISLNK(st->st_mode)) {
1008 size_t len = strlen(symbuf);
1009 if (rpmcpioWrite(fsm->archive, symbuf, len) != len) {
1010 rc = CPIOERR_WRITE_FAILED;
1017 /* preserve any prior errno across close */
1018 int myerrno = errno;
1019 rpmswAdd(rpmtsOp(fsmGetTs(fsm), RPMTS_OP_DIGEST),
1020 fdOp(rfd, FDSTAT_DIGEST));
1029 /** \ingroup payload
1030 * Write set of linked files to payload stream.
1031 * @param fsm file state machine data
1032 * @return 0 on success
1034 static int writeLinkedFile(FSM_t fsm)
1036 char * path = fsm->path;
1037 const char * nsuffix = fsm->nsuffix;
1038 int iterIndex = fsm->ix;
1044 fsm->nsuffix = NULL;
1047 for (i = fsm->li->nlink - 1; i >= 0; i--) {
1049 if (fsm->li->filex[i] < 0) continue;
1051 fsm->ix = fsm->li->filex[i];
1052 rc = fsmMapPath(fsm);
1054 /* Write data after last link. */
1055 rc = writeFile(fsm, (i == 0));
1056 if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
1058 *fsm->failedFile = xstrdup(fsm->path);
1061 fsm->path = _free(fsm->path);
1062 fsm->li->filex[i] = -1;
1065 fsm->ix = iterIndex;
1066 fsm->nsuffix = nsuffix;
1071 static int writeLinks(FSM_t fsm)
1076 while ((fsm->li = fsm->links) != NULL) {
1077 fsm->links = fsm->li->next;
1078 fsm->li->next = NULL;
1080 /* Re-calculate link count for archive header. */
1081 for (j = -1, nlink = 0, i = 0; i < fsm->li->nlink; i++) {
1082 if (fsm->li->filex[i] < 0)
1087 /* XXX force the contents out as well. */
1089 fsm->li->filex[0] = fsm->li->filex[j];
1090 fsm->li->filex[j] = -1;
1092 fsm->li->sb.st_nlink = nlink;
1094 fsm->sb = fsm->li->sb; /* structure assignment */
1095 fsm->osb = fsm->sb; /* structure assignment */
1097 if (!rc) rc = writeLinkedFile(fsm);
1099 fsm->li = freeHardLink(fsm->li);
1104 static int fsmStat(const char *path, int dolstat, struct stat *sb)
1108 rc = lstat(path, sb);
1110 rc = stat(path, sb);
1112 if (_fsm_debug && (FSM_STAT & FSM_SYSCALL) && rc && errno != ENOENT)
1113 rpmlog(RPMLOG_DEBUG, " %8s (%s, ost) %s\n",
1114 fileStageString(dolstat ? FSM_LSTAT : FSM_STAT),
1115 path, (rc < 0 ? strerror(errno) : ""));
1117 rc = (errno == ENOENT ? CPIOERR_ENOENT : CPIOERR_LSTAT_FAILED);
1118 /* WTH is this, and is it really needed, still? */
1119 memset(sb, 0, sizeof(*sb)); /* XXX s390x hackery */
1124 static int fsmVerify(FSM_t fsm);
1126 /** \ingroup payload
1127 * Create pending hard links to existing file.
1128 * @param fsm file state machine data
1129 * @return 0 on success
1131 static int fsmMakeLinks(FSM_t fsm)
1133 char * path = fsm->path;
1134 char * opath = NULL;
1135 const char * nsuffix = fsm->nsuffix;
1136 int iterIndex = fsm->ix;
1142 fsm->nsuffix = NULL;
1145 fsm->ix = fsm->li->filex[fsm->li->createdPath];
1146 rc = fsmMapPath(fsm);
1149 for (i = 0; i < fsm->li->nlink; i++) {
1150 if (fsm->li->filex[i] < 0) continue;
1151 if (fsm->li->createdPath == i) continue;
1153 fsm->ix = fsm->li->filex[i];
1154 fsm->path = _free(fsm->path);
1155 rc = fsmMapPath(fsm);
1156 if (XFA_SKIPPING(fsm->action)) continue;
1158 rc = fsmVerify(fsm);
1160 if (!(rc == CPIOERR_ENOENT)) break;
1162 /* XXX link(opath, fsm->path) */
1163 rc = link(opath, fsm->path);
1164 if (_fsm_debug && (FSM_LINK & FSM_SYSCALL))
1165 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_LINK),
1166 opath, fsm->path, (rc < 0 ? strerror(errno) : ""));
1167 if (rc < 0) rc = CPIOERR_LINK_FAILED;
1169 if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
1171 *fsm->failedFile = xstrdup(fsm->path);
1174 fsm->li->linksLeft--;
1176 fsm->path = _free(fsm->path);
1179 fsm->ix = iterIndex;
1180 fsm->nsuffix = nsuffix;
1185 /** \ingroup payload
1186 * Commit hard linked file set atomically.
1187 * @param fsm file state machine data
1188 * @return 0 on success
1190 static int fsmCommitLinks(FSM_t fsm)
1192 char * path = fsm->path;
1193 const char * nsuffix = fsm->nsuffix;
1194 int iterIndex = fsm->ix;
1195 struct stat * st = &fsm->sb;
1200 fsm->nsuffix = NULL;
1203 for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
1204 if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
1208 for (i = 0; i < fsm->li->nlink; i++) {
1209 if (fsm->li->filex[i] < 0) continue;
1210 fsm->ix = fsm->li->filex[i];
1211 rc = fsmMapPath(fsm);
1212 if (!XFA_SKIPPING(fsm->action))
1213 rc = fsmNext(fsm, FSM_COMMIT);
1214 fsm->path = _free(fsm->path);
1215 fsm->li->filex[i] = -1;
1218 fsm->ix = iterIndex;
1219 fsm->nsuffix = nsuffix;
1224 static int fsmRmdir(const char *path)
1226 int rc = rmdir(path);
1227 if (_fsm_debug && (FSM_RMDIR & FSM_SYSCALL))
1228 rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", fileStageString(FSM_RMDIR),
1229 path, (rc < 0 ? strerror(errno) : ""));
1232 case ENOENT: rc = CPIOERR_ENOENT; break;
1233 case ENOTEMPTY: rc = CPIOERR_ENOTEMPTY; break;
1234 default: rc = CPIOERR_RMDIR_FAILED; break;
1239 static int fsmMkdir(const char *path, mode_t mode)
1241 int rc = mkdir(path, (mode & 07777));
1242 if (_fsm_debug && (FSM_MKDIR & FSM_SYSCALL))
1243 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", fileStageString(FSM_MKDIR),
1244 path, (unsigned)(mode & 07777),
1245 (rc < 0 ? strerror(errno) : ""));
1246 if (rc < 0) rc = CPIOERR_MKDIR_FAILED;
1250 static int fsmMkfifo(const char *path, mode_t mode)
1252 int rc = mkfifo(path, (mode & 07777));
1254 if (_fsm_debug && (FSM_MKFIFO & FSM_SYSCALL)) {
1255 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n",
1256 fileStageString(FSM_MKFIFO), path, (unsigned)(mode & 07777),
1257 (rc < 0 ? strerror(errno) : ""));
1261 rc = CPIOERR_MKFIFO_FAILED;
1266 static int fsmMknod(const char *path, mode_t mode, dev_t dev)
1268 /* FIX: check S_IFIFO or dev != 0 */
1269 int rc = mknod(path, (mode & ~07777), dev);
1271 if (_fsm_debug && (FSM_MKNOD & FSM_SYSCALL)) {
1272 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%o, 0x%x) %s\n",
1273 fileStageString(FSM_MKNOD), path, (unsigned)(mode & ~07777),
1274 (unsigned)dev, (rc < 0 ? strerror(errno) : ""));
1278 rc = CPIOERR_MKNOD_FAILED;
1284 * Create (if necessary) directories not explicitly included in package.
1285 * @param dnli file state machine data
1286 * @param sehandle selinux label handle (bah)
1287 * @return 0 on success
1289 static int fsmMkdirs(DNLI_t dnli, struct selabel_handle *sehandle)
1293 int dc = dnlCount(dnli);
1299 short * dnlx = NULL;
1301 dnlx = (dc ? xcalloc(dc, sizeof(*dnlx)) : NULL);
1304 while ((dpath = dnlNextIterator(dnli)) != NULL) {
1305 size_t dnlen = strlen(dpath);
1306 char * te, dn[dnlen+1];
1308 dc = dnlIndex(dnli);
1309 if (dc < 0) continue;
1314 if (dnlen <= ldnlen && rstreq(dpath, ldn))
1317 /* Copy as we need to modify the string */
1318 (void) stpcpy(dn, dpath);
1320 /* Assume '/' directory exists, "mkdir -p" for others if non-existent */
1321 for (i = 1, te = dn + 1; *te != '\0'; te++, i++) {
1327 /* Already validated? */
1329 (ldn[i] == '/' || ldn[i] == '\0') && rstreqn(dn, ldn, i))
1332 /* Move pre-existing path marker forward. */
1333 dnlx[dc] = (te - dn);
1337 /* Validate next component of path. */
1338 rc = fsmStat(dn, 1, &sb); /* lstat */
1341 /* Directory already exists? */
1342 if (rc == 0 && S_ISDIR(sb.st_mode)) {
1343 /* Move pre-existing path marker forward. */
1344 dnlx[dc] = (te - dn);
1345 } else if (rc == CPIOERR_ENOENT) {
1347 mode_t mode = S_IFDIR | (_dirPerms & 07777);
1348 rc = fsmMkdir(dn, mode);
1350 rc = fsmSetSELabel(sehandle, dn, mode);
1352 rpmlog(RPMLOG_DEBUG,
1353 "%s directory created with perms %04o\n",
1354 dn, (unsigned)(mode & 07777));
1363 /* Save last validated path. */
1364 if (ldnalloc < (dnlen + 1)) {
1365 ldnalloc = dnlen + 100;
1366 ldn = xrealloc(ldn, ldnalloc);
1368 if (ldn != NULL) { /* XXX can't happen */
1379 static void removeSBITS(const char *path)
1382 if (lstat(path, &stb) == 0 && S_ISREG(stb.st_mode)) {
1383 if ((stb.st_mode & 06000) != 0) {
1384 (void) chmod(path, stb.st_mode & 0777);
1387 if (stb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) {
1388 (void) cap_set_file(path, NULL);
1394 /********************************************************************/
1396 static int fsmInit(FSM_t fsm)
1400 fsm->path = _free(fsm->path);
1402 fsm->diskchecked = fsm->exists = 0;
1403 fsm->action = FA_UNKNOWN;
1404 fsm->osuffix = NULL;
1405 fsm->nsuffix = NULL;
1407 if (fsm->goal == FSM_PKGINSTALL) {
1408 /* Read next payload header. */
1409 rc = rpmcpioHeaderRead(fsm->archive, &(fsm->path), &(fsm->sb));
1411 if (rstreq(fsm->path, CPIO_TRAILER)) { /* Detect end-of-payload. */
1412 fsm->path = _free(fsm->path);
1413 rc = CPIOERR_HDR_TRAILER;
1418 /* Identify mapping index. */
1419 fsm->ix = ((fsm->goal == FSM_PKGINSTALL)
1420 ? mapFind(fsm->iter, fsm->path) : mapNextIterator(fsm->iter));
1422 /* Detect end-of-loop and/or mapping error. */
1424 if (fsm->goal == FSM_PKGINSTALL) {
1426 rpmlog(RPMLOG_WARNING,
1427 _("archive file %s was not found in header file list\n"),
1430 if (fsm->failedFile && *fsm->failedFile == NULL)
1431 *fsm->failedFile = xstrdup(fsm->path);
1432 rc = CPIOERR_UNMAPPED_FILE;
1434 rc = CPIOERR_HDR_TRAILER;
1439 /* On non-install, mode must be known so that dirs don't get suffix. */
1440 if (fsm->goal != FSM_PKGINSTALL) {
1441 rpmfi fi = fsmGetFi(fsm);
1442 fsm->sb.st_mode = rpmfiFModeIndex(fi, fsm->ix);
1445 /* Generate file path. */
1446 rc = fsmMapPath(fsm);
1449 /* Perform lstat/stat for disk file. */
1450 if (fsm->path != NULL &&
1451 !(fsm->goal == FSM_PKGINSTALL && S_ISREG(fsm->sb.st_mode)))
1453 int dolstat = !(fsm->mapFlags & CPIO_FOLLOW_SYMLINKS);
1454 rc = fsmStat(fsm->path, dolstat, &fsm->osb);
1455 if (rc == CPIOERR_ENOENT) {
1456 // errno = saveerrno; XXX temporary commented out
1459 } else if (rc == 0) {
1463 /* Skip %ghost files on build. */
1466 fsm->diskchecked = 1;
1469 /* On non-install, the disk file stat is what's remapped. */
1470 if (fsm->goal != FSM_PKGINSTALL)
1471 fsm->sb = fsm->osb; /* structure assignment */
1473 /* Remap file perms, owner, and group. */
1474 rc = fsmMapAttrs(fsm);
1477 fsm->postpone = XFA_SKIPPING(fsm->action);
1478 if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
1479 /* FIX: saveHardLink can modify fsm */
1480 if (S_ISREG(fsm->sb.st_mode) && fsm->sb.st_nlink > 1)
1481 fsm->postpone = saveHardLink(fsm);
1487 static int fsmSymlink(const char *opath, const char *path)
1489 int rc = symlink(opath, path);
1491 if (_fsm_debug && (FSM_SYMLINK & FSM_SYSCALL)) {
1492 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_SYMLINK),
1493 opath, path, (rc < 0 ? strerror(errno) : ""));
1497 rc = CPIOERR_SYMLINK_FAILED;
1501 static int fsmUnlink(const char *path, cpioMapFlags mapFlags)
1504 if (mapFlags & CPIO_SBIT_CHECK)
1507 if (_fsm_debug && (FSM_UNLINK & FSM_SYSCALL))
1508 rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", fileStageString(FSM_UNLINK),
1509 path, (rc < 0 ? strerror(errno) : ""));
1511 rc = (errno == ENOENT ? CPIOERR_ENOENT : CPIOERR_UNLINK_FAILED);
1515 static int fsmRename(const char *opath, const char *path,
1516 cpioMapFlags mapFlags)
1518 if (mapFlags & CPIO_SBIT_CHECK)
1520 int rc = rename(opath, path);
1521 #if defined(ETXTBSY) && defined(__HPUX__)
1522 /* XXX HP-UX (and other os'es) don't permit rename to busy files. */
1523 if (rc && errno == ETXTBSY) {
1524 char *rmpath = NULL;
1525 rstrscat(&rmpath, path, "-RPMDELETE", NULL);
1526 rc = rename(path, rmpath);
1527 if (!rc) rc = rename(opath, path);
1531 if (_fsm_debug && (FSM_RENAME & FSM_SYSCALL))
1532 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_RENAME),
1533 opath, path, (rc < 0 ? strerror(errno) : ""));
1534 if (rc < 0) rc = CPIOERR_RENAME_FAILED;
1539 static int fsmChown(const char *path, uid_t uid, gid_t gid)
1541 int rc = chown(path, uid, gid);
1544 if (lstat(path, &st) == 0 && st.st_uid == uid && st.st_gid == gid)
1547 if (_fsm_debug && (FSM_CHOWN & FSM_SYSCALL))
1548 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", fileStageString(FSM_CHOWN),
1549 path, (int)uid, (int)gid,
1550 (rc < 0 ? strerror(errno) : ""));
1551 if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
1555 static int fsmLChown(const char *path, uid_t uid, gid_t gid)
1557 int rc = lchown(path, uid, gid);
1560 if (lstat(path, &st) == 0 && st.st_uid == uid && st.st_gid == gid)
1563 if (_fsm_debug && (FSM_LCHOWN & FSM_SYSCALL))
1564 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", fileStageString(FSM_LCHOWN),
1565 path, (int)uid, (int)gid,
1566 (rc < 0 ? strerror(errno) : ""));
1567 if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
1571 static int fsmChmod(const char *path, mode_t mode)
1573 int rc = chmod(path, (mode & 07777));
1576 if (lstat(path, &st) == 0 && (st.st_mode & 07777) == (mode & 07777))
1579 if (_fsm_debug && (FSM_CHMOD & FSM_SYSCALL))
1580 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", fileStageString(FSM_CHMOD),
1581 path, (unsigned)(mode & 07777),
1582 (rc < 0 ? strerror(errno) : ""));
1583 if (rc < 0) rc = CPIOERR_CHMOD_FAILED;
1587 static int fsmUtime(const char *path, time_t mtime)
1590 struct utimbuf stamp;
1591 stamp.actime = mtime;
1592 stamp.modtime = mtime;
1593 rc = utime(path, &stamp);
1594 if (_fsm_debug && (FSM_UTIME & FSM_SYSCALL))
1595 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0x%x) %s\n", fileStageString(FSM_UTIME),
1596 path, (unsigned)mtime, (rc < 0 ? strerror(errno) : ""));
1597 if (rc < 0) rc = CPIOERR_UTIME_FAILED;
1601 static int fsmVerify(FSM_t fsm)
1604 struct stat * st = &fsm->sb;
1605 struct stat * ost = &fsm->osb;
1606 int saveerrno = errno;
1608 if (fsm->diskchecked && !fsm->exists) {
1609 return CPIOERR_ENOENT;
1611 if (S_ISREG(st->st_mode)) {
1612 /* HP-UX (and other os'es) don't permit unlink on busy files. */
1613 char *rmpath = rstrscat(NULL, fsm->path, "-RPMDELETE", NULL);
1614 rc = fsmRename(fsm->path, rmpath, fsm->mapFlags);
1615 /* XXX shouldn't we take unlink return code here? */
1617 (void) fsmUnlink(rmpath, fsm->mapFlags);
1619 rc = CPIOERR_UNLINK_FAILED;
1621 return (rc ? rc : CPIOERR_ENOENT); /* XXX HACK */
1622 } else if (S_ISDIR(st->st_mode)) {
1623 if (S_ISDIR(ost->st_mode)) return 0;
1624 if (S_ISLNK(ost->st_mode)) {
1625 rc = fsmStat(fsm->path, 0, &fsm->osb);
1626 if (rc == CPIOERR_ENOENT) rc = 0;
1629 if (S_ISDIR(ost->st_mode)) return 0;
1631 } else if (S_ISLNK(st->st_mode)) {
1632 if (S_ISLNK(ost->st_mode)) {
1633 char buf[8 * BUFSIZ];
1635 rc = fsmReadLink(fsm->path, buf, 8 * BUFSIZ, &len);
1638 /* FSM_PROCESS puts link target to fsm->buf. */
1639 if (rstreq(fsm->buf, buf)) return 0;
1641 } else if (S_ISFIFO(st->st_mode)) {
1642 if (S_ISFIFO(ost->st_mode)) return 0;
1643 } else if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
1644 if ((S_ISCHR(ost->st_mode) || S_ISBLK(ost->st_mode)) &&
1645 (ost->st_rdev == st->st_rdev)) return 0;
1646 } else if (S_ISSOCK(st->st_mode)) {
1647 if (S_ISSOCK(ost->st_mode)) return 0;
1649 /* XXX shouldn't do this with commit/undo. */
1651 if (fsm->stage == FSM_PROCESS) rc = fsmUnlink(fsm->path, fsm->mapFlags);
1652 if (rc == 0) rc = CPIOERR_ENOENT;
1653 return (rc ? rc : CPIOERR_ENOENT); /* XXX HACK */
1656 /********************************************************************/
1658 #define IS_DEV_LOG(_x) \
1659 ((_x) != NULL && strlen(_x) >= (sizeof("/dev/log")-1) && \
1660 rstreqn((_x), "/dev/log", sizeof("/dev/log")-1) && \
1661 ((_x)[sizeof("/dev/log")-1] == '\0' || \
1662 (_x)[sizeof("/dev/log")-1] == ';'))
1665 * File state machine driver.
1666 * @param fsm file state machine
1667 * @param stage next stage
1668 * @return 0 on success
1670 static int fsmStage(FSM_t fsm, fileStage stage)
1672 const char * const cur = fileStageString(stage);
1673 struct stat * st = &fsm->sb;
1674 struct stat * ost = &fsm->osb;
1675 int saveerrno = errno;
1678 #define _fafilter(_a) \
1679 (!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \
1680 ? fileActionString(_a) : "")
1682 if (stage & FSM_DEAD) {
1684 } else if (stage & FSM_INTERNAL) {
1685 if (_fsm_debug && !(stage & FSM_SYSCALL))
1686 rpmlog(RPMLOG_DEBUG, " %8s %06o%3d (%4d,%4d)%10d %s %s\n",
1688 (unsigned)st->st_mode, (int)st->st_nlink,
1689 (int)st->st_uid, (int)st->st_gid, (int)st->st_size,
1690 (fsm->path ? fsm->path : ""),
1691 _fafilter(fsm->action));
1694 if (_fsm_debug || !(stage & FSM_VERBOSE))
1695 rpmlog(RPMLOG_DEBUG, "%-8s %06o%3d (%4d,%4d)%10d %s %s\n",
1697 (unsigned)st->st_mode, (int)st->st_nlink,
1698 (int)st->st_uid, (int)st->st_gid, (int)st->st_size,
1699 (fsm->path ? fsm->path : ""),
1700 _fafilter(fsm->action));
1707 case FSM_PKGINSTALL:
1709 /* Clean fsm, free'ing memory. Read next archive header. */
1712 /* Exit on end-of-payload. */
1713 if (rc == CPIOERR_HDR_TRAILER) {
1718 /* Exit on error. */
1721 (void) fsmNext(fsm, FSM_UNDO);
1725 /* Extract file from archive. */
1726 rc = fsmNext(fsm, FSM_PROCESS);
1728 (void) fsmNext(fsm, FSM_UNDO);
1732 /* Notify on success. */
1733 rpmpsmNotify(fsm->psm, RPMCALLBACK_INST_PROGRESS, rpmcpioTell(fsm->archive));
1735 rc = fsmNext(fsm, FSM_FINI);
1743 /* Clean fsm, free'ing memory. */
1746 /* Exit on end-of-payload. */
1747 if (rc == CPIOERR_HDR_TRAILER) {
1752 /* Rename/erase next item. */
1753 if (fsmNext(fsm, FSM_FINI))
1756 /* Notify on success. */
1757 /* On erase we're iterating backwards, fixup for progress */
1758 rpm_loff_t amount = (fsm->ix >= 0) ?
1759 rpmfiFC(fsmGetFi(fsm)) - fsm->ix : 0;
1760 rpmpsmNotify(fsm->psm, RPMCALLBACK_UNINST_PROGRESS, amount);
1768 /* Exit on end-of-payload. */
1769 if (rc == CPIOERR_HDR_TRAILER) {
1774 /* Exit on error. */
1777 (void) fsmNext(fsm, FSM_UNDO);
1781 /* Copy file into archive. */
1782 rc = fsmNext(fsm, FSM_PROCESS);
1784 (void) fsmNext(fsm, FSM_UNDO);
1788 if (fsmNext(fsm, FSM_FINI))
1792 /* Flush partial sets of hard linked files. */
1793 rc = writeLinks(fsm);
1797 if (fsm->postpone) {
1801 if (fsm->goal == FSM_PKGBUILD) {
1802 if (fsm->fflags & RPMFILE_GHOST) /* XXX Don't if %ghost file. */
1804 /* Hardlinks are handled later */
1805 if (!(S_ISREG(st->st_mode) && st->st_nlink > 1)) {
1806 rc = writeFile(fsm, 1);
1811 if (fsm->goal != FSM_PKGINSTALL)
1814 if (S_ISREG(st->st_mode)) {
1815 char * path = fsm->path;
1817 fsm->path = fsmFsPath(fsm, st, NULL, NULL);
1818 rc = fsmVerify(fsm);
1820 if (rc == 0 && fsm->osuffix) {
1821 char * spath = fsmFsPath(fsm, st, NULL, fsm->osuffix);
1822 rc = fsmRename(fsm->path, spath, fsm->mapFlags);
1824 rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"),
1833 if (!(rc == CPIOERR_ENOENT)) return rc;
1834 rc = expandRegular(fsm);
1835 } else if (S_ISDIR(st->st_mode)) {
1836 rc = fsmVerify(fsm);
1837 if (rc == CPIOERR_ENOENT) {
1838 mode_t mode = st->st_mode;
1841 rc = fsmMkdir(fsm->path, mode);
1843 } else if (S_ISLNK(st->st_mode)) {
1844 if ((st->st_size + 1) > fsm->bufsize) {
1845 rc = CPIOERR_HDR_SIZE;
1849 if (rpmcpioRead(fsm->archive, fsm->buf, st->st_size) != st->st_size) {
1850 rc = CPIOERR_READ_FAILED;
1854 fsm->buf[st->st_size] = '\0';
1855 /* fsmVerify() assumes link target in fsm->buf */
1856 rc = fsmVerify(fsm);
1857 if (rc == CPIOERR_ENOENT) {
1858 rc = fsmSymlink(fsm->buf, fsm->path);
1860 } else if (S_ISFIFO(st->st_mode)) {
1861 /* This mimics cpio S_ISSOCK() behavior but probably isnt' right */
1862 rc = fsmVerify(fsm);
1863 if (rc == CPIOERR_ENOENT) {
1864 rc = fsmMkfifo(fsm->path, 0000);
1866 } else if (S_ISCHR(st->st_mode) ||
1867 S_ISBLK(st->st_mode) ||
1868 S_ISSOCK(st->st_mode))
1870 rc = fsmVerify(fsm);
1871 if (rc == CPIOERR_ENOENT) {
1872 rc = fsmMknod(fsm->path, fsm->sb.st_mode, fsm->sb.st_rdev);
1875 /* XXX Special case /dev/log, which shouldn't be packaged anyways */
1876 if (!IS_DEV_LOG(fsm->path))
1877 rc = CPIOERR_UNKNOWN_FILETYPE;
1879 if (S_ISREG(st->st_mode) && st->st_nlink > 1) {
1880 fsm->li->createdPath = fsm->li->linkIndex;
1881 rc = fsmMakeLinks(fsm);
1889 if (fsm->goal == FSM_PKGINSTALL) {
1890 /* XXX only erase if temp fn w suffix is in use */
1892 if (S_ISDIR(st->st_mode)) {
1893 (void) fsmRmdir(fsm->path);
1895 (void) fsmUnlink(fsm->path, fsm->mapFlags);
1900 if (fsm->failedFile && *fsm->failedFile == NULL)
1901 *fsm->failedFile = xstrdup(fsm->path);
1904 if (!fsm->postpone) {
1905 if (fsm->goal == FSM_PKGINSTALL)
1906 rc = ((S_ISREG(st->st_mode) && st->st_nlink > 1)
1907 ? fsmCommitLinks(fsm) : fsmNext(fsm, FSM_COMMIT));
1908 if (fsm->goal == FSM_PKGERASE)
1909 rc = fsmNext(fsm, FSM_COMMIT);
1911 fsm->path = _free(fsm->path);
1912 memset(st, 0, sizeof(*st));
1913 memset(ost, 0, sizeof(*ost));
1916 /* Rename pre-existing modified or unmanaged file. */
1917 if (fsm->osuffix && fsm->diskchecked &&
1918 (fsm->exists || (fsm->goal == FSM_PKGINSTALL && S_ISREG(st->st_mode))))
1920 char * opath = fsmFsPath(fsm, st, NULL, NULL);
1921 char * path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
1922 rc = fsmRename(opath, path, fsm->mapFlags);
1924 rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"), opath, path);
1930 /* Remove erased files. */
1931 if (fsm->goal == FSM_PKGERASE) {
1932 if (fsm->action == FA_ERASE) {
1933 rpmte te = fsmGetTe(fsm);
1934 if (S_ISDIR(st->st_mode)) {
1935 rc = fsmRmdir(fsm->path);
1938 case CPIOERR_ENOENT: /* XXX rmdir("/") linux 2.2.x kernel hack */
1939 case CPIOERR_ENOTEMPTY:
1940 /* XXX make sure that build side permits %missingok on directories. */
1941 if (fsm->fflags & RPMFILE_MISSINGOK)
1944 /* XXX common error message. */
1946 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1947 _("%s rmdir of %s failed: Directory not empty\n"),
1948 rpmteTypeString(te), fsm->path);
1952 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1953 _("%s rmdir of %s failed: %s\n"),
1954 rpmteTypeString(te), fsm->path, strerror(errno));
1958 rc = fsmUnlink(fsm->path, fsm->mapFlags);
1961 case CPIOERR_ENOENT:
1962 if (fsm->fflags & RPMFILE_MISSINGOK)
1966 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1967 _("%s unlink of %s failed: %s\n"),
1968 rpmteTypeString(te), fsm->path, strerror(errno));
1973 /* XXX Failure to remove is not (yet) cause for failure. */
1974 if (!strict_erasures) rc = 0;
1978 /* XXX Special case /dev/log, which shouldn't be packaged anyways */
1979 if (!S_ISSOCK(st->st_mode) && !IS_DEV_LOG(fsm->path)) {
1980 /* Rename temporary to final file name. */
1981 if (!S_ISDIR(st->st_mode) && (fsm->suffix || fsm->nsuffix)) {
1982 char *npath = fsmFsPath(fsm, st, NULL, fsm->nsuffix);
1983 rc = fsmRename(fsm->path, npath, fsm->mapFlags);
1984 if (!rc && fsm->nsuffix) {
1985 char * opath = fsmFsPath(fsm, st, NULL, NULL);
1986 rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),
1993 /* Set file security context (if enabled) */
1994 if (!rc && !getuid()) {
1995 rc = fsmSetSELabel(fsm->sehandle, fsm->path, fsm->sb.st_mode);
1997 if (S_ISLNK(st->st_mode)) {
1998 if (!rc && !getuid())
1999 rc = fsmLChown(fsm->path, fsm->sb.st_uid, fsm->sb.st_gid);
2001 rpmfi fi = fsmGetFi(fsm);
2002 if (!rc && !getuid())
2003 rc = fsmChown(fsm->path, fsm->sb.st_uid, fsm->sb.st_gid);
2005 rc = fsmChmod(fsm->path, fsm->sb.st_mode);
2007 rc = fsmUtime(fsm->path, rpmfiFMtimeIndex(fi, fsm->ix));
2008 /* utime error is not critical for directories */
2009 if (rc && S_ISDIR(st->st_mode))
2012 /* Set file capabilities (if enabled) */
2013 if (!rc && !S_ISDIR(st->st_mode) && !getuid()) {
2014 rc = fsmSetFCaps(fsm->path, rpmfiFCapsIndex(fi, fsm->ix));
2019 /* Notify on success. */
2021 if (fsm->goal == FSM_PKGINSTALL) {
2022 rpmpsmNotify(fsm->psm, RPMCALLBACK_INST_PROGRESS, rpmcpioTell(fsm->archive));
2024 } else if (fsm->failedFile && *fsm->failedFile == NULL) {
2025 *fsm->failedFile = fsm->path;
2030 fsm->path = _free(fsm->path);
2032 /* Check for hard links missing from payload. */
2033 while ((fsm->li = fsm->links) != NULL) {
2034 fsm->links = fsm->li->next;
2035 fsm->li->next = NULL;
2036 if (fsm->goal == FSM_PKGINSTALL && fsm->li->linksLeft) {
2037 for (nlink_t i = 0 ; i < fsm->li->linksLeft; i++) {
2038 if (fsm->li->filex[i] < 0)
2040 rc = CPIOERR_MISSING_HARDLINK;
2041 if (fsm->failedFile && *fsm->failedFile == NULL) {
2042 fsm->ix = fsm->li->filex[i];
2043 if (!fsmMapPath(fsm)) {
2044 /* Out-of-sync hardlinks handled as sub-state */
2045 *fsm->failedFile = fsm->path;
2052 fsm->li = freeHardLink(fsm->li);
2054 fsm->buf = _free(fsm->buf);
2061 if (!(stage & FSM_INTERNAL)) {
2062 fsm->rc = (rc == CPIOERR_HDR_TRAILER ? 0 : rc);
2068 * Return formatted string representation of file disposition.
2069 * @param a file dispostion
2070 * @return formatted string
2072 static const char * fileActionString(rpmFileAction a)
2075 case FA_UNKNOWN: return "unknown";
2076 case FA_CREATE: return "create";
2077 case FA_COPYOUT: return "copyout";
2078 case FA_COPYIN: return "copyin";
2079 case FA_BACKUP: return "backup";
2080 case FA_SAVE: return "save";
2081 case FA_SKIP: return "skip";
2082 case FA_ALTNAME: return "altname";
2083 case FA_ERASE: return "erase";
2084 case FA_SKIPNSTATE: return "skipnstate";
2085 case FA_SKIPNETSHARED: return "skipnetshared";
2086 case FA_SKIPCOLOR: return "skipcolor";
2087 default: return "???";
2092 * Return formatted string representation of file stages.
2093 * @param a file stage
2094 * @return formatted string
2096 static const char * fileStageString(fileStage a)
2099 case FSM_UNKNOWN: return "unknown";
2101 case FSM_PKGINSTALL:return "INSTALL";
2102 case FSM_PKGERASE: return "ERASE";
2103 case FSM_PKGBUILD: return "BUILD";
2104 case FSM_PKGUNDO: return "UNDO";
2106 case FSM_CREATE: return "create";
2107 case FSM_INIT: return "init";
2108 case FSM_MAP: return "map";
2109 case FSM_MKDIRS: return "mkdirs";
2110 case FSM_RMDIRS: return "rmdirs";
2111 case FSM_PRE: return "pre";
2112 case FSM_PROCESS: return "process";
2113 case FSM_POST: return "post";
2114 case FSM_MKLINKS: return "mklinks";
2115 case FSM_NOTIFY: return "notify";
2116 case FSM_UNDO: return "undo";
2117 case FSM_FINI: return "fini";
2118 case FSM_COMMIT: return "commit";
2119 case FSM_DESTROY: return "destroy";
2120 case FSM_VERIFY: return "verify";
2122 case FSM_UNLINK: return "unlink";
2123 case FSM_RENAME: return "rename";
2124 case FSM_MKDIR: return "mkdir";
2125 case FSM_RMDIR: return "rmdir";
2126 case FSM_LSETFCON: return "lsetfcon";
2127 case FSM_CHOWN: return "chown";
2128 case FSM_LCHOWN: return "lchown";
2129 case FSM_CHMOD: return "chmod";
2130 case FSM_UTIME: return "utime";
2131 case FSM_SYMLINK: return "symlink";
2132 case FSM_LINK: return "link";
2133 case FSM_MKFIFO: return "mkfifo";
2134 case FSM_MKNOD: return "mknod";
2135 case FSM_LSTAT: return "lstat";
2136 case FSM_STAT: return "stat";
2137 case FSM_READLINK: return "readlink";
2138 case FSM_SETCAP: return "setcap";
2140 case FSM_NEXT: return "next";
2141 case FSM_EAT: return "eat";
2142 case FSM_POS: return "pos";
2143 case FSM_PAD: return "pad";
2144 case FSM_TRAILER: return "trailer";
2145 case FSM_HREAD: return "hread";
2146 case FSM_HWRITE: return "hwrite";
2147 case FSM_DREAD: return "Fread";
2148 case FSM_DWRITE: return "Fwrite";
2150 default: return "???";
2154 int rpmfsmRun(fileStage goal, rpmts ts, rpmte te, rpmfi fi, FD_t cfd,
2155 rpmpsm psm, rpm_loff_t * archiveSize, char ** failedFile)
2161 memset(&fsm, 0, sizeof(fsm));
2162 sc = fsmSetup(&fsm, goal, ts, te, fi, cfd, psm, archiveSize, failedFile);
2163 ec = fsmTeardown(&fsm);
2165 /* Return the relevant code: if setup failed, teardown doesn't matter */
2166 return (sc ? sc : ec);