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->buf = _free(fsm->buf);
564 if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
565 fsm->bufsize = 8 * BUFSIZ;
566 fsm->buf = xmalloc(fsm->bufsize);
572 errno = 0; /* XXX get rid of EBADF */
574 /* Detect and create directories not explicitly in package. */
575 /* XXX This seems like a strange place to do this... */
576 if (fsm->goal == FSM_PKGINSTALL) {
577 DNLI_t dnli = dnlInitIterator(fsm, 0);
578 rc = fsmMkdirs(dnli, fsm->sehandle);
579 dnlFreeIterator(dnli);
584 static int fsmSetup(FSM_t fsm, fileStage goal,
585 rpmts ts, rpmte te, rpmfi fi, FD_t cfd, rpmpsm psm,
586 rpm_loff_t * archiveSize, char ** failedFile)
589 int isSrc = rpmteIsSource(te);
593 fsm->cfd = fdLink(cfd);
595 fsm->iter = mapInitIterator(ts, te, fi);
597 fsm->sehandle = rpmtsSELabelHandle(ts);
599 fsm->mapFlags = CPIO_MAP_PATH | CPIO_MAP_MODE | CPIO_MAP_UID | CPIO_MAP_GID;
600 if (goal == FSM_PKGBUILD) {
601 fsm->mapFlags |= CPIO_MAP_TYPE;
603 fsm->mapFlags |= CPIO_FOLLOW_SYMLINKS;
605 fsm->archive = rpmcpioOpen(cfd, O_WRONLY);
608 fsm->mapFlags |= CPIO_SBIT_CHECK;
610 fsm->archive = rpmcpioOpen(cfd, O_RDONLY);
613 fsm->archiveSize = archiveSize;
614 if (fsm->archiveSize)
615 *fsm->archiveSize = 0;
616 fsm->failedFile = failedFile;
618 *fsm->failedFile = NULL;
620 if (fsm->goal == FSM_PKGINSTALL) {
621 rasprintf(&fsm->suffix, ";%08x", (unsigned)rpmtsGetTid(ts));
626 if (rc && !ec) ec = rc;
628 rc = fsmUNSAFE(fsm, fsm->goal);
629 if (rc && !ec) ec = rc;
631 if (fsm->archiveSize && ec == 0)
632 *fsm->archiveSize = rpmcpioTell(fsm->archive);
634 /* FIX: *fsm->failedFile may be NULL */
638 static int fsmTeardown(FSM_t fsm)
643 rc = fsmUNSAFE(fsm, FSM_DESTROY);
645 rc = rpmcpioClose(fsm->archive) || rc;
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 len = (left > fsm->bufsize ? fsm->bufsize : left);
793 if (rpmcpioRead(fsm->archive, fsm->buf, len) != len) {
794 rc = CPIOERR_READ_FAILED;
797 if ((Fwrite(fsm->buf, sizeof(*fsm->buf), len, wfd) != len) || Ferror(wfd)) {
798 rc = CPIOERR_WRITE_FAILED;
804 /* don't call this with fileSize == fileComplete */
806 (void) fsmNext(fsm, FSM_NOTIFY);
809 if (st->st_size > 0 && fidigest) {
810 void * digest = NULL;
813 fdFiniDigest(wfd, digestalgo, &digest, NULL, 0);
815 if (digest != NULL && fidigest != NULL) {
816 size_t diglen = rpmDigestLength(digestalgo);
817 if (memcmp(digest, fidigest, diglen)) {
818 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, buf, %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.
883 rc = fsmReadLink(fsm->path, fsm->buf, fsm->bufsize, &linklen);
885 st->st_size = linklen;
886 rstrcat(&symbuf, fsm->buf); /* 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 = rpmcpioHeaderWrite(fsm->archive, fsm->path, st);
905 if (writeData && S_ISREG(st->st_mode)) {
909 void * mapped = MAP_FAILED;
914 rfd = Fopen(fsm->path, "r.ufdio");
916 rc = CPIOERR_OPEN_FAILED;
920 /* XXX unbuffered mmap generates *lots* of fdio debugging */
923 mapped = mmap(NULL, st->st_size, PROT_READ, MAP_SHARED, Fileno(rfd), 0);
924 if (mapped != MAP_FAILED) {
926 fsm->buf = (char *) mapped;
927 len = nmapped = st->st_size;
928 #if defined(MADV_DONTNEED)
929 xx = madvise(mapped, nmapped, MADV_DONTNEED);
938 if (mapped != MAP_FAILED) {
943 len = (left > fsm->bufsize ? fsm->bufsize : left);
944 if (Fread(fsm->buf, sizeof(*fsm->buf), len, rfd) != len || Ferror(rfd)) {
945 rc = CPIOERR_READ_FAILED;
950 if (rpmcpioWrite(fsm->archive, fsm->buf, len) != len) {
951 rc = CPIOERR_WRITE_FAILED;
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 size_t len = strlen(symbuf);
970 if (rpmcpioWrite(fsm->archive, symbuf, len) != len) {
971 rc = CPIOERR_WRITE_FAILED;
978 /* preserve any prior errno across close */
980 rpmswAdd(rpmtsOp(fsmGetTs(fsm), RPMTS_OP_DIGEST),
981 fdOp(rfd, FDSTAT_DIGEST));
988 printf(rpmcpioStrerror(rc));
993 * Write set of linked files to payload stream.
994 * @param fsm file state machine data
995 * @return 0 on success
997 static int writeLinkedFile(FSM_t fsm)
999 char * path = fsm->path;
1000 const char * nsuffix = fsm->nsuffix;
1001 int iterIndex = fsm->ix;
1007 fsm->nsuffix = NULL;
1010 for (i = fsm->li->nlink - 1; i >= 0; i--) {
1012 if (fsm->li->filex[i] < 0) continue;
1014 fsm->ix = fsm->li->filex[i];
1015 rc = fsmMapPath(fsm);
1017 /* Write data after last link. */
1018 rc = writeFile(fsm, (i == 0));
1019 if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
1021 *fsm->failedFile = xstrdup(fsm->path);
1024 fsm->path = _free(fsm->path);
1025 fsm->li->filex[i] = -1;
1028 fsm->ix = iterIndex;
1029 fsm->nsuffix = nsuffix;
1034 static int writeLinks(FSM_t fsm)
1039 while ((fsm->li = fsm->links) != NULL) {
1040 fsm->links = fsm->li->next;
1041 fsm->li->next = NULL;
1043 /* Re-calculate link count for archive header. */
1044 for (j = -1, nlink = 0, i = 0; i < fsm->li->nlink; i++) {
1045 if (fsm->li->filex[i] < 0)
1050 /* XXX force the contents out as well. */
1052 fsm->li->filex[0] = fsm->li->filex[j];
1053 fsm->li->filex[j] = -1;
1055 fsm->li->sb.st_nlink = nlink;
1057 fsm->sb = fsm->li->sb; /* structure assignment */
1058 fsm->osb = fsm->sb; /* structure assignment */
1060 if (!rc) rc = writeLinkedFile(fsm);
1062 fsm->li = freeHardLink(fsm->li);
1067 static int fsmStat(const char *path, int dolstat, struct stat *sb)
1071 rc = lstat(path, sb);
1073 rc = stat(path, sb);
1075 if (_fsm_debug && (FSM_STAT & FSM_SYSCALL) && rc && errno != ENOENT)
1076 rpmlog(RPMLOG_DEBUG, " %8s (%s, ost) %s\n",
1077 fileStageString(dolstat ? FSM_LSTAT : FSM_STAT),
1078 path, (rc < 0 ? strerror(errno) : ""));
1080 rc = (errno == ENOENT ? CPIOERR_ENOENT : CPIOERR_LSTAT_FAILED);
1081 /* WTH is this, and is it really needed, still? */
1082 memset(sb, 0, sizeof(*sb)); /* XXX s390x hackery */
1087 static int fsmVerify(FSM_t fsm);
1089 /** \ingroup payload
1090 * Create pending hard links to existing file.
1091 * @param fsm file state machine data
1092 * @return 0 on success
1094 static int fsmMakeLinks(FSM_t fsm)
1096 char * path = fsm->path;
1097 char * opath = NULL;
1098 const char * nsuffix = fsm->nsuffix;
1099 int iterIndex = fsm->ix;
1105 fsm->nsuffix = NULL;
1108 fsm->ix = fsm->li->filex[fsm->li->createdPath];
1109 rc = fsmMapPath(fsm);
1112 for (i = 0; i < fsm->li->nlink; i++) {
1113 if (fsm->li->filex[i] < 0) continue;
1114 if (fsm->li->createdPath == i) continue;
1116 fsm->ix = fsm->li->filex[i];
1117 fsm->path = _free(fsm->path);
1118 rc = fsmMapPath(fsm);
1119 if (XFA_SKIPPING(fsm->action)) continue;
1121 rc = fsmVerify(fsm);
1123 if (!(rc == CPIOERR_ENOENT)) break;
1125 /* XXX link(opath, fsm->path) */
1126 rc = link(opath, fsm->path);
1127 if (_fsm_debug && (FSM_LINK & FSM_SYSCALL))
1128 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_LINK),
1129 opath, fsm->path, (rc < 0 ? strerror(errno) : ""));
1130 if (rc < 0) rc = CPIOERR_LINK_FAILED;
1132 if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
1134 *fsm->failedFile = xstrdup(fsm->path);
1137 fsm->li->linksLeft--;
1139 fsm->path = _free(fsm->path);
1142 fsm->ix = iterIndex;
1143 fsm->nsuffix = nsuffix;
1148 /** \ingroup payload
1149 * Commit hard linked file set atomically.
1150 * @param fsm file state machine data
1151 * @return 0 on success
1153 static int fsmCommitLinks(FSM_t fsm)
1155 char * path = fsm->path;
1156 const char * nsuffix = fsm->nsuffix;
1157 int iterIndex = fsm->ix;
1158 struct stat * st = &fsm->sb;
1163 fsm->nsuffix = NULL;
1166 for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
1167 if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
1171 for (i = 0; i < fsm->li->nlink; i++) {
1172 if (fsm->li->filex[i] < 0) continue;
1173 fsm->ix = fsm->li->filex[i];
1174 rc = fsmMapPath(fsm);
1175 if (!XFA_SKIPPING(fsm->action))
1176 rc = fsmNext(fsm, FSM_COMMIT);
1177 fsm->path = _free(fsm->path);
1178 fsm->li->filex[i] = -1;
1181 fsm->ix = iterIndex;
1182 fsm->nsuffix = nsuffix;
1187 static int fsmRmdir(const char *path)
1189 int rc = rmdir(path);
1190 if (_fsm_debug && (FSM_RMDIR & FSM_SYSCALL))
1191 rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", fileStageString(FSM_RMDIR),
1192 path, (rc < 0 ? strerror(errno) : ""));
1195 case ENOENT: rc = CPIOERR_ENOENT; break;
1196 case ENOTEMPTY: rc = CPIOERR_ENOTEMPTY; break;
1197 default: rc = CPIOERR_RMDIR_FAILED; break;
1202 static int fsmMkdir(const char *path, mode_t mode)
1204 int rc = mkdir(path, (mode & 07777));
1205 if (_fsm_debug && (FSM_MKDIR & FSM_SYSCALL))
1206 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", fileStageString(FSM_MKDIR),
1207 path, (unsigned)(mode & 07777),
1208 (rc < 0 ? strerror(errno) : ""));
1209 if (rc < 0) rc = CPIOERR_MKDIR_FAILED;
1213 static int fsmMkfifo(const char *path, mode_t mode)
1215 int rc = mkfifo(path, (mode & 07777));
1217 if (_fsm_debug && (FSM_MKFIFO & FSM_SYSCALL)) {
1218 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n",
1219 fileStageString(FSM_MKFIFO), path, (unsigned)(mode & 07777),
1220 (rc < 0 ? strerror(errno) : ""));
1224 rc = CPIOERR_MKFIFO_FAILED;
1229 static int fsmMknod(const char *path, mode_t mode, dev_t dev)
1231 /* FIX: check S_IFIFO or dev != 0 */
1232 int rc = mknod(path, (mode & ~07777), dev);
1234 if (_fsm_debug && (FSM_MKNOD & FSM_SYSCALL)) {
1235 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%o, 0x%x) %s\n",
1236 fileStageString(FSM_MKNOD), path, (unsigned)(mode & ~07777),
1237 (unsigned)dev, (rc < 0 ? strerror(errno) : ""));
1241 rc = CPIOERR_MKNOD_FAILED;
1247 * Create (if necessary) directories not explicitly included in package.
1248 * @param dnli file state machine data
1249 * @param sehandle selinux label handle (bah)
1250 * @return 0 on success
1252 static int fsmMkdirs(DNLI_t dnli, struct selabel_handle *sehandle)
1256 int dc = dnlCount(dnli);
1262 short * dnlx = NULL;
1264 dnlx = (dc ? xcalloc(dc, sizeof(*dnlx)) : NULL);
1267 while ((dpath = dnlNextIterator(dnli)) != NULL) {
1268 size_t dnlen = strlen(dpath);
1269 char * te, dn[dnlen+1];
1271 dc = dnlIndex(dnli);
1272 if (dc < 0) continue;
1277 if (dnlen <= ldnlen && rstreq(dpath, ldn))
1280 /* Copy as we need to modify the string */
1281 (void) stpcpy(dn, dpath);
1283 /* Assume '/' directory exists, "mkdir -p" for others if non-existent */
1284 for (i = 1, te = dn + 1; *te != '\0'; te++, i++) {
1290 /* Already validated? */
1292 (ldn[i] == '/' || ldn[i] == '\0') && rstreqn(dn, ldn, i))
1295 /* Move pre-existing path marker forward. */
1296 dnlx[dc] = (te - dn);
1300 /* Validate next component of path. */
1301 rc = fsmStat(dn, 1, &sb); /* lstat */
1304 /* Directory already exists? */
1305 if (rc == 0 && S_ISDIR(sb.st_mode)) {
1306 /* Move pre-existing path marker forward. */
1307 dnlx[dc] = (te - dn);
1308 } else if (rc == CPIOERR_ENOENT) {
1310 mode_t mode = S_IFDIR | (_dirPerms & 07777);
1311 rc = fsmMkdir(dn, mode);
1313 rc = fsmSetSELabel(sehandle, dn, mode);
1315 rpmlog(RPMLOG_DEBUG,
1316 "%s directory created with perms %04o\n",
1317 dn, (unsigned)(mode & 07777));
1326 /* Save last validated path. */
1327 if (ldnalloc < (dnlen + 1)) {
1328 ldnalloc = dnlen + 100;
1329 ldn = xrealloc(ldn, ldnalloc);
1331 if (ldn != NULL) { /* XXX can't happen */
1342 static void removeSBITS(const char *path)
1345 if (lstat(path, &stb) == 0 && S_ISREG(stb.st_mode)) {
1346 if ((stb.st_mode & 06000) != 0) {
1347 (void) chmod(path, stb.st_mode & 0777);
1350 if (stb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) {
1351 (void) cap_set_file(path, NULL);
1357 /********************************************************************/
1359 static int fsmInit(FSM_t fsm)
1363 fsm->path = _free(fsm->path);
1365 fsm->diskchecked = fsm->exists = 0;
1366 fsm->action = FA_UNKNOWN;
1367 fsm->osuffix = NULL;
1368 fsm->nsuffix = NULL;
1370 if (fsm->goal == FSM_PKGINSTALL) {
1371 /* Read next header from payload, checking for end-of-payload. */
1372 rc = fsmUNSAFE(fsm, FSM_NEXT);
1376 /* Identify mapping index. */
1377 fsm->ix = ((fsm->goal == FSM_PKGINSTALL)
1378 ? mapFind(fsm->iter, fsm->path) : mapNextIterator(fsm->iter));
1380 /* Detect end-of-loop and/or mapping error. */
1382 if (fsm->goal == FSM_PKGINSTALL) {
1384 rpmlog(RPMLOG_WARNING,
1385 _("archive file %s was not found in header file list\n"),
1388 if (fsm->failedFile && *fsm->failedFile == NULL)
1389 *fsm->failedFile = xstrdup(fsm->path);
1390 rc = CPIOERR_UNMAPPED_FILE;
1392 rc = CPIOERR_HDR_TRAILER;
1397 /* On non-install, mode must be known so that dirs don't get suffix. */
1398 if (fsm->goal != FSM_PKGINSTALL) {
1399 rpmfi fi = fsmGetFi(fsm);
1400 fsm->sb.st_mode = rpmfiFModeIndex(fi, fsm->ix);
1403 /* Generate file path. */
1404 rc = fsmMapPath(fsm);
1407 /* Perform lstat/stat for disk file. */
1408 if (fsm->path != NULL &&
1409 !(fsm->goal == FSM_PKGINSTALL && S_ISREG(fsm->sb.st_mode)))
1411 int dolstat = !(fsm->mapFlags & CPIO_FOLLOW_SYMLINKS);
1412 rc = fsmStat(fsm->path, dolstat, &fsm->osb);
1413 if (rc == CPIOERR_ENOENT) {
1414 // errno = saveerrno; XXX temporary commented out
1417 } else if (rc == 0) {
1421 /* Skip %ghost files on build. */
1424 fsm->diskchecked = 1;
1427 /* On non-install, the disk file stat is what's remapped. */
1428 if (fsm->goal != FSM_PKGINSTALL)
1429 fsm->sb = fsm->osb; /* structure assignment */
1431 /* Remap file perms, owner, and group. */
1432 rc = fsmMapAttrs(fsm);
1435 fsm->postpone = XFA_SKIPPING(fsm->action);
1436 if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
1437 /* FIX: saveHardLink can modify fsm */
1438 if (S_ISREG(fsm->sb.st_mode) && fsm->sb.st_nlink > 1)
1439 fsm->postpone = saveHardLink(fsm);
1445 static int fsmSymlink(const char *opath, const char *path)
1447 int rc = symlink(opath, path);
1449 if (_fsm_debug && (FSM_SYMLINK & FSM_SYSCALL)) {
1450 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_SYMLINK),
1451 opath, path, (rc < 0 ? strerror(errno) : ""));
1455 rc = CPIOERR_SYMLINK_FAILED;
1459 static int fsmUnlink(const char *path, cpioMapFlags mapFlags)
1462 if (mapFlags & CPIO_SBIT_CHECK)
1465 if (_fsm_debug && (FSM_UNLINK & FSM_SYSCALL))
1466 rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", fileStageString(FSM_UNLINK),
1467 path, (rc < 0 ? strerror(errno) : ""));
1469 rc = (errno == ENOENT ? CPIOERR_ENOENT : CPIOERR_UNLINK_FAILED);
1473 static int fsmRename(const char *opath, const char *path,
1474 cpioMapFlags mapFlags)
1476 if (mapFlags & CPIO_SBIT_CHECK)
1478 int rc = rename(opath, path);
1479 #if defined(ETXTBSY) && defined(__HPUX__)
1480 /* XXX HP-UX (and other os'es) don't permit rename to busy files. */
1481 if (rc && errno == ETXTBSY) {
1482 char *rmpath = NULL;
1483 rstrscat(&rmpath, path, "-RPMDELETE", NULL);
1484 rc = rename(path, rmpath);
1485 if (!rc) rc = rename(opath, path);
1489 if (_fsm_debug && (FSM_RENAME & FSM_SYSCALL))
1490 rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", fileStageString(FSM_RENAME),
1491 opath, path, (rc < 0 ? strerror(errno) : ""));
1492 if (rc < 0) rc = CPIOERR_RENAME_FAILED;
1497 static int fsmChown(const char *path, uid_t uid, gid_t gid)
1499 int rc = chown(path, uid, gid);
1502 if (lstat(path, &st) == 0 && st.st_uid == uid && st.st_gid == gid)
1505 if (_fsm_debug && (FSM_CHOWN & FSM_SYSCALL))
1506 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", fileStageString(FSM_CHOWN),
1507 path, (int)uid, (int)gid,
1508 (rc < 0 ? strerror(errno) : ""));
1509 if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
1513 static int fsmLChown(const char *path, uid_t uid, gid_t gid)
1515 int rc = lchown(path, uid, gid);
1518 if (lstat(path, &st) == 0 && st.st_uid == uid && st.st_gid == gid)
1521 if (_fsm_debug && (FSM_LCHOWN & FSM_SYSCALL))
1522 rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", fileStageString(FSM_LCHOWN),
1523 path, (int)uid, (int)gid,
1524 (rc < 0 ? strerror(errno) : ""));
1525 if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
1529 static int fsmChmod(const char *path, mode_t mode)
1531 int rc = chmod(path, (mode & 07777));
1534 if (lstat(path, &st) == 0 && (st.st_mode & 07777) == (mode & 07777))
1537 if (_fsm_debug && (FSM_CHMOD & FSM_SYSCALL))
1538 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", fileStageString(FSM_CHMOD),
1539 path, (unsigned)(mode & 07777),
1540 (rc < 0 ? strerror(errno) : ""));
1541 if (rc < 0) rc = CPIOERR_CHMOD_FAILED;
1545 static int fsmUtime(const char *path, time_t mtime)
1548 struct utimbuf stamp;
1549 stamp.actime = mtime;
1550 stamp.modtime = mtime;
1551 rc = utime(path, &stamp);
1552 if (_fsm_debug && (FSM_UTIME & FSM_SYSCALL))
1553 rpmlog(RPMLOG_DEBUG, " %8s (%s, 0x%x) %s\n", fileStageString(FSM_UTIME),
1554 path, (unsigned)mtime, (rc < 0 ? strerror(errno) : ""));
1555 if (rc < 0) rc = CPIOERR_UTIME_FAILED;
1559 static int fsmVerify(FSM_t fsm)
1562 struct stat * st = &fsm->sb;
1563 struct stat * ost = &fsm->osb;
1564 int saveerrno = errno;
1566 if (fsm->diskchecked && !fsm->exists) {
1567 return CPIOERR_ENOENT;
1569 if (S_ISREG(st->st_mode)) {
1570 /* HP-UX (and other os'es) don't permit unlink on busy files. */
1571 char *rmpath = rstrscat(NULL, fsm->path, "-RPMDELETE", NULL);
1572 rc = fsmRename(fsm->path, rmpath, fsm->mapFlags);
1573 /* XXX shouldn't we take unlink return code here? */
1575 (void) fsmUnlink(rmpath, fsm->mapFlags);
1577 rc = CPIOERR_UNLINK_FAILED;
1579 return (rc ? rc : CPIOERR_ENOENT); /* XXX HACK */
1580 } else if (S_ISDIR(st->st_mode)) {
1581 if (S_ISDIR(ost->st_mode)) return 0;
1582 if (S_ISLNK(ost->st_mode)) {
1583 rc = fsmStat(fsm->path, 0, &fsm->osb);
1584 if (rc == CPIOERR_ENOENT) rc = 0;
1587 if (S_ISDIR(ost->st_mode)) return 0;
1589 } else if (S_ISLNK(st->st_mode)) {
1590 if (S_ISLNK(ost->st_mode)) {
1591 char buf[8 * BUFSIZ];
1593 rc = fsmReadLink(fsm->path, buf, 8 * BUFSIZ, &len);
1596 /* FSM_PROCESS puts link target to fsm->buf. */
1597 if (rstreq(fsm->buf, buf)) return 0;
1599 } else if (S_ISFIFO(st->st_mode)) {
1600 if (S_ISFIFO(ost->st_mode)) return 0;
1601 } else if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
1602 if ((S_ISCHR(ost->st_mode) || S_ISBLK(ost->st_mode)) &&
1603 (ost->st_rdev == st->st_rdev)) return 0;
1604 } else if (S_ISSOCK(st->st_mode)) {
1605 if (S_ISSOCK(ost->st_mode)) return 0;
1607 /* XXX shouldn't do this with commit/undo. */
1609 if (fsm->stage == FSM_PROCESS) rc = fsmUnlink(fsm->path, fsm->mapFlags);
1610 if (rc == 0) rc = CPIOERR_ENOENT;
1611 return (rc ? rc : CPIOERR_ENOENT); /* XXX HACK */
1614 /********************************************************************/
1616 #define IS_DEV_LOG(_x) \
1617 ((_x) != NULL && strlen(_x) >= (sizeof("/dev/log")-1) && \
1618 rstreqn((_x), "/dev/log", sizeof("/dev/log")-1) && \
1619 ((_x)[sizeof("/dev/log")-1] == '\0' || \
1620 (_x)[sizeof("/dev/log")-1] == ';'))
1623 * File state machine driver.
1624 * @param fsm file state machine
1625 * @param stage next stage
1626 * @return 0 on success
1628 static int fsmStage(FSM_t fsm, fileStage stage)
1630 const char * const cur = fileStageString(stage);
1631 struct stat * st = &fsm->sb;
1632 struct stat * ost = &fsm->osb;
1633 int saveerrno = errno;
1636 #define _fafilter(_a) \
1637 (!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \
1638 ? fileActionString(_a) : "")
1640 if (stage & FSM_DEAD) {
1642 } else if (stage & FSM_INTERNAL) {
1643 if (_fsm_debug && !(stage & FSM_SYSCALL))
1644 rpmlog(RPMLOG_DEBUG, " %8s %06o%3d (%4d,%4d)%10d %s %s\n",
1646 (unsigned)st->st_mode, (int)st->st_nlink,
1647 (int)st->st_uid, (int)st->st_gid, (int)st->st_size,
1648 (fsm->path ? fsm->path : ""),
1649 _fafilter(fsm->action));
1652 if (_fsm_debug || !(stage & FSM_VERBOSE))
1653 rpmlog(RPMLOG_DEBUG, "%-8s %06o%3d (%4d,%4d)%10d %s %s\n",
1655 (unsigned)st->st_mode, (int)st->st_nlink,
1656 (int)st->st_uid, (int)st->st_gid, (int)st->st_size,
1657 (fsm->path ? fsm->path : ""),
1658 _fafilter(fsm->action));
1665 case FSM_PKGINSTALL:
1667 /* Clean fsm, free'ing memory. Read next archive header. */
1670 /* Exit on end-of-payload. */
1671 if (rc == CPIOERR_HDR_TRAILER) {
1676 /* Exit on error. */
1679 (void) fsmNext(fsm, FSM_UNDO);
1683 /* Extract file from archive. */
1684 rc = fsmNext(fsm, FSM_PROCESS);
1686 (void) fsmNext(fsm, FSM_UNDO);
1690 /* Notify on success. */
1691 (void) fsmNext(fsm, FSM_NOTIFY);
1693 rc = fsmNext(fsm, FSM_FINI);
1701 /* Clean fsm, free'ing memory. */
1704 /* Exit on end-of-payload. */
1705 if (rc == CPIOERR_HDR_TRAILER) {
1710 /* Rename/erase next item. */
1711 if (fsmNext(fsm, FSM_FINI))
1714 /* Notify on success. */
1715 (void) fsmNext(fsm, FSM_NOTIFY);
1723 /* Exit on end-of-payload. */
1724 if (rc == CPIOERR_HDR_TRAILER) {
1729 /* Exit on error. */
1732 (void) fsmNext(fsm, FSM_UNDO);
1736 /* Copy file into archive. */
1737 rc = fsmNext(fsm, FSM_PROCESS);
1739 (void) fsmNext(fsm, FSM_UNDO);
1743 if (fsmNext(fsm, FSM_FINI))
1747 /* Flush partial sets of hard linked files. */
1748 rc = writeLinks(fsm);
1752 if (fsm->postpone) {
1756 if (fsm->goal == FSM_PKGBUILD) {
1757 if (fsm->fflags & RPMFILE_GHOST) /* XXX Don't if %ghost file. */
1759 /* Hardlinks are handled later */
1760 if (!(S_ISREG(st->st_mode) && st->st_nlink > 1)) {
1761 rc = writeFile(fsm, 1);
1766 if (fsm->goal != FSM_PKGINSTALL)
1769 if (S_ISREG(st->st_mode)) {
1770 char * path = fsm->path;
1772 fsm->path = fsmFsPath(fsm, st, NULL, NULL);
1773 rc = fsmVerify(fsm);
1775 if (rc == 0 && fsm->osuffix) {
1776 char * spath = fsmFsPath(fsm, st, NULL, fsm->osuffix);
1777 rc = fsmRename(fsm->path, spath, fsm->mapFlags);
1779 rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"),
1788 if (!(rc == CPIOERR_ENOENT)) return rc;
1789 rc = expandRegular(fsm);
1790 } else if (S_ISDIR(st->st_mode)) {
1791 rc = fsmVerify(fsm);
1792 if (rc == CPIOERR_ENOENT) {
1793 mode_t mode = st->st_mode;
1796 rc = fsmMkdir(fsm->path, mode);
1798 } else if (S_ISLNK(st->st_mode)) {
1799 if ((st->st_size + 1) > fsm->bufsize) {
1800 rc = CPIOERR_HDR_SIZE;
1804 if (rpmcpioRead(fsm->archive, fsm->buf, st->st_size) != st->st_size) {
1805 rc = CPIOERR_READ_FAILED;
1809 fsm->buf[st->st_size] = '\0';
1810 /* fsmVerify() assumes link target in fsm->buf */
1811 rc = fsmVerify(fsm);
1812 if (rc == CPIOERR_ENOENT) {
1813 rc = fsmSymlink(fsm->buf, fsm->path);
1815 } else if (S_ISFIFO(st->st_mode)) {
1816 /* This mimics cpio S_ISSOCK() behavior but probably isnt' right */
1817 rc = fsmVerify(fsm);
1818 if (rc == CPIOERR_ENOENT) {
1819 rc = fsmMkfifo(fsm->path, 0000);
1821 } else if (S_ISCHR(st->st_mode) ||
1822 S_ISBLK(st->st_mode) ||
1823 S_ISSOCK(st->st_mode))
1825 rc = fsmVerify(fsm);
1826 if (rc == CPIOERR_ENOENT) {
1827 rc = fsmMknod(fsm->path, fsm->sb.st_mode, fsm->sb.st_rdev);
1830 /* XXX Special case /dev/log, which shouldn't be packaged anyways */
1831 if (!IS_DEV_LOG(fsm->path))
1832 rc = CPIOERR_UNKNOWN_FILETYPE;
1834 if (S_ISREG(st->st_mode) && st->st_nlink > 1) {
1835 fsm->li->createdPath = fsm->li->linkIndex;
1836 rc = fsmMakeLinks(fsm);
1841 case FSM_NOTIFY: /* XXX move from fsm to psm -> tsm */
1842 if (fsm->goal == FSM_PKGINSTALL) {
1843 rpmpsmNotify(fsm->psm, RPMCALLBACK_INST_PROGRESS, rpmcpioTell(fsm->archive));
1844 } else if (fsm->goal == FSM_PKGERASE) {
1845 /* On erase we're iterating backwards, fixup for progress */
1846 rpm_loff_t amount = (fsm->ix >= 0) ?
1847 rpmfiFC(fsmGetFi(fsm)) - fsm->ix : 0;
1848 rpmpsmNotify(fsm->psm, RPMCALLBACK_UNINST_PROGRESS, amount);
1854 if (fsm->goal == FSM_PKGINSTALL) {
1855 /* XXX only erase if temp fn w suffix is in use */
1857 if (S_ISDIR(st->st_mode)) {
1858 (void) fsmRmdir(fsm->path);
1860 (void) fsmUnlink(fsm->path, fsm->mapFlags);
1865 if (fsm->failedFile && *fsm->failedFile == NULL)
1866 *fsm->failedFile = xstrdup(fsm->path);
1869 if (!fsm->postpone) {
1870 if (fsm->goal == FSM_PKGINSTALL)
1871 rc = ((S_ISREG(st->st_mode) && st->st_nlink > 1)
1872 ? fsmCommitLinks(fsm) : fsmNext(fsm, FSM_COMMIT));
1873 if (fsm->goal == FSM_PKGERASE)
1874 rc = fsmNext(fsm, FSM_COMMIT);
1876 fsm->path = _free(fsm->path);
1877 memset(st, 0, sizeof(*st));
1878 memset(ost, 0, sizeof(*ost));
1881 /* Rename pre-existing modified or unmanaged file. */
1882 if (fsm->osuffix && fsm->diskchecked &&
1883 (fsm->exists || (fsm->goal == FSM_PKGINSTALL && S_ISREG(st->st_mode))))
1885 char * opath = fsmFsPath(fsm, st, NULL, NULL);
1886 char * path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
1887 rc = fsmRename(opath, path, fsm->mapFlags);
1889 rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"), opath, path);
1895 /* Remove erased files. */
1896 if (fsm->goal == FSM_PKGERASE) {
1897 if (fsm->action == FA_ERASE) {
1898 rpmte te = fsmGetTe(fsm);
1899 if (S_ISDIR(st->st_mode)) {
1900 rc = fsmRmdir(fsm->path);
1903 case CPIOERR_ENOENT: /* XXX rmdir("/") linux 2.2.x kernel hack */
1904 case CPIOERR_ENOTEMPTY:
1905 /* XXX make sure that build side permits %missingok on directories. */
1906 if (fsm->fflags & RPMFILE_MISSINGOK)
1909 /* XXX common error message. */
1911 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1912 _("%s rmdir of %s failed: Directory not empty\n"),
1913 rpmteTypeString(te), fsm->path);
1917 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1918 _("%s rmdir of %s failed: %s\n"),
1919 rpmteTypeString(te), fsm->path, strerror(errno));
1923 rc = fsmUnlink(fsm->path, fsm->mapFlags);
1926 case CPIOERR_ENOENT:
1927 if (fsm->fflags & RPMFILE_MISSINGOK)
1931 (strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
1932 _("%s unlink of %s failed: %s\n"),
1933 rpmteTypeString(te), fsm->path, strerror(errno));
1938 /* XXX Failure to remove is not (yet) cause for failure. */
1939 if (!strict_erasures) rc = 0;
1943 /* XXX Special case /dev/log, which shouldn't be packaged anyways */
1944 if (!S_ISSOCK(st->st_mode) && !IS_DEV_LOG(fsm->path)) {
1945 /* Rename temporary to final file name. */
1946 if (!S_ISDIR(st->st_mode) && (fsm->suffix || fsm->nsuffix)) {
1947 char *npath = fsmFsPath(fsm, st, NULL, fsm->nsuffix);
1948 rc = fsmRename(fsm->path, npath, fsm->mapFlags);
1949 if (!rc && fsm->nsuffix) {
1950 char * opath = fsmFsPath(fsm, st, NULL, NULL);
1951 rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),
1958 /* Set file security context (if enabled) */
1959 if (!rc && !getuid()) {
1960 rc = fsmSetSELabel(fsm->sehandle, fsm->path, fsm->sb.st_mode);
1962 if (S_ISLNK(st->st_mode)) {
1963 if (!rc && !getuid())
1964 rc = fsmLChown(fsm->path, fsm->sb.st_uid, fsm->sb.st_gid);
1966 rpmfi fi = fsmGetFi(fsm);
1967 if (!rc && !getuid())
1968 rc = fsmChown(fsm->path, fsm->sb.st_uid, fsm->sb.st_gid);
1970 rc = fsmChmod(fsm->path, fsm->sb.st_mode);
1972 rc = fsmUtime(fsm->path, rpmfiFMtimeIndex(fi, fsm->ix));
1973 /* utime error is not critical for directories */
1974 if (rc && S_ISDIR(st->st_mode))
1977 /* Set file capabilities (if enabled) */
1978 if (!rc && !S_ISDIR(st->st_mode) && !getuid()) {
1979 rc = fsmSetFCaps(fsm->path, rpmfiFCapsIndex(fi, fsm->ix));
1984 /* Notify on success. */
1985 if (!rc) rc = fsmNext(fsm, FSM_NOTIFY);
1986 else if (fsm->failedFile && *fsm->failedFile == NULL) {
1987 *fsm->failedFile = fsm->path;
1992 fsm->path = _free(fsm->path);
1994 /* Check for hard links missing from payload. */
1995 while ((fsm->li = fsm->links) != NULL) {
1996 fsm->links = fsm->li->next;
1997 fsm->li->next = NULL;
1998 if (fsm->goal == FSM_PKGINSTALL && fsm->li->linksLeft) {
1999 for (nlink_t i = 0 ; i < fsm->li->linksLeft; i++) {
2000 if (fsm->li->filex[i] < 0)
2002 rc = CPIOERR_MISSING_HARDLINK;
2003 if (fsm->failedFile && *fsm->failedFile == NULL) {
2004 fsm->ix = fsm->li->filex[i];
2005 if (!fsmMapPath(fsm)) {
2006 /* Out-of-sync hardlinks handled as sub-state */
2007 *fsm->failedFile = fsm->path;
2014 fsm->li = freeHardLink(fsm->li);
2016 fsm->buf = _free(fsm->buf);
2022 rc = rpmcpioHeaderRead(fsm->archive, &(fsm->path), st); /* Read next payload header. */
2025 if (rstreq(fsm->path, CPIO_TRAILER)) { /* Detect end-of-payload. */
2026 fsm->path = _free(fsm->path);
2027 rc = CPIOERR_HDR_TRAILER;
2034 if (!(stage & FSM_INTERNAL)) {
2035 fsm->rc = (rc == CPIOERR_HDR_TRAILER ? 0 : rc);
2041 * Return formatted string representation of file disposition.
2042 * @param a file dispostion
2043 * @return formatted string
2045 static const char * fileActionString(rpmFileAction a)
2048 case FA_UNKNOWN: return "unknown";
2049 case FA_CREATE: return "create";
2050 case FA_COPYOUT: return "copyout";
2051 case FA_COPYIN: return "copyin";
2052 case FA_BACKUP: return "backup";
2053 case FA_SAVE: return "save";
2054 case FA_SKIP: return "skip";
2055 case FA_ALTNAME: return "altname";
2056 case FA_ERASE: return "erase";
2057 case FA_SKIPNSTATE: return "skipnstate";
2058 case FA_SKIPNETSHARED: return "skipnetshared";
2059 case FA_SKIPCOLOR: return "skipcolor";
2060 default: return "???";
2065 * Return formatted string representation of file stages.
2066 * @param a file stage
2067 * @return formatted string
2069 static const char * fileStageString(fileStage a)
2072 case FSM_UNKNOWN: return "unknown";
2074 case FSM_PKGINSTALL:return "INSTALL";
2075 case FSM_PKGERASE: return "ERASE";
2076 case FSM_PKGBUILD: return "BUILD";
2077 case FSM_PKGUNDO: return "UNDO";
2079 case FSM_CREATE: return "create";
2080 case FSM_INIT: return "init";
2081 case FSM_MAP: return "map";
2082 case FSM_MKDIRS: return "mkdirs";
2083 case FSM_RMDIRS: return "rmdirs";
2084 case FSM_PRE: return "pre";
2085 case FSM_PROCESS: return "process";
2086 case FSM_POST: return "post";
2087 case FSM_MKLINKS: return "mklinks";
2088 case FSM_NOTIFY: return "notify";
2089 case FSM_UNDO: return "undo";
2090 case FSM_FINI: return "fini";
2091 case FSM_COMMIT: return "commit";
2092 case FSM_DESTROY: return "destroy";
2093 case FSM_VERIFY: return "verify";
2095 case FSM_UNLINK: return "unlink";
2096 case FSM_RENAME: return "rename";
2097 case FSM_MKDIR: return "mkdir";
2098 case FSM_RMDIR: return "rmdir";
2099 case FSM_LSETFCON: return "lsetfcon";
2100 case FSM_CHOWN: return "chown";
2101 case FSM_LCHOWN: return "lchown";
2102 case FSM_CHMOD: return "chmod";
2103 case FSM_UTIME: return "utime";
2104 case FSM_SYMLINK: return "symlink";
2105 case FSM_LINK: return "link";
2106 case FSM_MKFIFO: return "mkfifo";
2107 case FSM_MKNOD: return "mknod";
2108 case FSM_LSTAT: return "lstat";
2109 case FSM_STAT: return "stat";
2110 case FSM_READLINK: return "readlink";
2111 case FSM_SETCAP: return "setcap";
2113 case FSM_NEXT: return "next";
2114 case FSM_EAT: return "eat";
2115 case FSM_POS: return "pos";
2116 case FSM_PAD: return "pad";
2117 case FSM_TRAILER: return "trailer";
2118 case FSM_HREAD: return "hread";
2119 case FSM_HWRITE: return "hwrite";
2120 case FSM_DREAD: return "Fread";
2121 case FSM_DWRITE: return "Fwrite";
2123 default: return "???";
2127 int rpmfsmRun(fileStage goal, rpmts ts, rpmte te, rpmfi fi, FD_t cfd,
2128 rpmpsm psm, rpm_loff_t * archiveSize, char ** failedFile)
2134 memset(&fsm, 0, sizeof(fsm));
2135 sc = fsmSetup(&fsm, goal, ts, te, fi, cfd, psm, archiveSize, failedFile);
2136 ec = fsmTeardown(&fsm);
2138 /* Return the relevant code: if setup failed, teardown doesn't matter */
2139 return (sc ? sc : ec);