X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Ffindlib%2Fcreate_file.c;h=223d99ecd63e7a5974cb5251d5016604283ca18d;hb=2258a576909678515dbee6639e8cd607bb044e85;hp=bca0d9f29be7406dfd367fbffd7363ee7cbddcf3;hpb=cc05c945351c855c74656db03fb804cb7c0008c6;p=bacula%2Fbacula diff --git a/bacula/src/findlib/create_file.c b/bacula/src/findlib/create_file.c index bca0d9f29b..223d99ecd6 100644 --- a/bacula/src/findlib/create_file.c +++ b/bacula/src/findlib/create_file.c @@ -7,22 +7,17 @@ * */ /* - Copyright (C) 2000-2003 Kern Sibbald and John Walker + Copyright (C) 2000-2005 Kern Sibbald This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2 of - the License, or (at your option) any later version. + modify it under the terms of the GNU General Public License + version 2 as amended with additional clauses defined in the + file LICENSE in the main source directory. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public - License along with this program; if not, write to the Free - Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + the file LICENSE for additional details. */ @@ -38,87 +33,108 @@ #define O_CTG 0 #endif -static int separate_path_and_file(void *jcr, char *fname, char *ofile); -static int path_already_seen(char *path, int pnl); +static int separate_path_and_file(JCR *jcr, char *fname, char *ofile); +static int path_already_seen(JCR *jcr, char *path, int pnl); /* * Create the file, or the directory * - * fname is the original filename + * fname is the original filename * ofile is the output filename (may be in a different directory) * - * Returns: CF_SKIP if file should be skipped - * CF_ERROR on error - * CF_EXTRACT file created and data to restore - * CF_CREATED file created no data to restore + * Returns: CF_SKIP if file should be skipped + * CF_ERROR on error + * CF_EXTRACT file created and data to restore + * CF_CREATED file created no data to restore * * Note, we create the file here, except for special files, - * we do not set the attributes because we want to first + * we do not set the attributes because we want to first * write the file, then when the writing is done, set the * attributes. - * So, we return with the file descriptor open for normal + * So, we return with the file descriptor open for normal * files. * */ -int create_file(void *jcr, char *fname, char *ofile, char *lname, - int type, int stream, struct stat *statp, - char *attribsEx, BFILE *ofd, int replace) +int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) { int new_mode, parent_mode, mode; uid_t uid; gid_t gid; - int stat = 0; int pnl; + bool exists = false; + struct stat mstatp; + + if (is_win32_stream(attr->data_stream)) { + set_win32_backup(bfd); + } else { + set_portable_backup(bfd); + } - binit(ofd); - new_mode = statp->st_mode; - Dmsg2(300, "newmode=%x file=%s\n", new_mode, ofile); + new_mode = attr->statp.st_mode; + Dmsg2(300, "newmode=%x file=%s\n", new_mode, attr->ofname); parent_mode = S_IWUSR | S_IXUSR | new_mode; - gid = statp->st_gid; - uid = statp->st_uid; + gid = attr->statp.st_gid; + uid = attr->statp.st_uid; Dmsg2(400, "Replace=%c %d\n", (char)replace, replace); - /* If not always replacing, do a stat and decide */ - if (replace != REPLACE_ALWAYS) { - struct stat mstatp; - if (lstat(ofile, &mstatp) == 0) { - switch (replace) { - case REPLACE_IFNEWER: - if (statp->st_mtime <= mstatp.st_mtime) { - Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Not newer: %s\n"), ofile); - return CF_SKIP; - } - break; - case REPLACE_IFOLDER: - if (statp->st_mtime >= mstatp.st_mtime) { - Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Not older: %s\n"), ofile); - return CF_SKIP; - } - break; - case REPLACE_NEVER: - Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Already exists: %s\n"), ofile); - return CF_SKIP; - } + if (lstat(attr->ofname, &mstatp) == 0) { + exists = true; + switch (replace) { + case REPLACE_IFNEWER: + if (attr->statp.st_mtime <= mstatp.st_mtime) { + Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Not newer: %s\n"), attr->ofname); + return CF_SKIP; + } + break; + + case REPLACE_IFOLDER: + if (attr->statp.st_mtime >= mstatp.st_mtime) { + Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Not older: %s\n"), attr->ofname); + return CF_SKIP; + } + break; + + case REPLACE_NEVER: + Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Already exists: %s\n"), attr->ofname); + return CF_SKIP; + + case REPLACE_ALWAYS: + break; } } - switch (type) { - case FT_LNKSAVED: /* Hard linked, file already saved */ + switch (attr->type) { + case FT_LNKSAVED: /* Hard linked, file already saved */ case FT_LNK: case FT_RAW: case FT_FIFO: case FT_SPEC: - case FT_REGE: /* empty file */ - case FT_REG: /* regular file */ + case FT_REGE: /* empty file */ + case FT_REG: /* regular file */ /* + * Note, we do not delete FT_RAW because these are device files + * or FIFOs that should already exist. If we blow it away, + * we may blow away a FIFO that is being used to read the + * restore data, or we may blow away a partition definition. + */ + if (exists && attr->type != FT_RAW) { + /* Get rid of old copy */ + if (unlink(attr->ofname) == -1) { + berrno be; + Jmsg(jcr, M_ERROR, 0, _("File %s already exists and could not be replaced. ERR=%s.\n"), + attr->ofname, be.strerror()); + /* Continue despite error */ + } + } + /* * Here we do some preliminary work for all the above * types to create the path to the file if it does * not already exist. Below, we will split to * do the file type specific work */ - pnl = separate_path_and_file(jcr, fname, ofile); + pnl = separate_path_and_file(jcr, attr->fname, attr->ofname); if (pnl < 0) { - return CF_ERROR; + return CF_ERROR; } /* @@ -126,107 +142,208 @@ int create_file(void *jcr, char *fname, char *ofile, char *lname, * directory. Assume that the directory already exists. */ if (pnl > 0) { - char savechr; - savechr = ofile[pnl]; - ofile[pnl] = 0; /* terminate path */ + char savechr; + savechr = attr->ofname[pnl]; + attr->ofname[pnl] = 0; /* terminate path */ - if (!path_already_seen(ofile, pnl)) { - Dmsg1(50, "Make path %s\n", ofile); - /* - * If we need to make the directory, ensure that it is with - * execute bit set (i.e. parent_mode), and preserve what already - * exists. Normally, this should do nothing. - */ - stat = !make_path(jcr, ofile, parent_mode, parent_mode, uid, gid, 1, NULL); - if (stat == 0) { - Dmsg1(0, "Could not make path. %s\n", ofile); - Jmsg1(jcr, M_ERROR, 0, _("Could not make path. %s\n"), ofile); - return CF_ERROR; - } - } - ofile[pnl] = savechr; /* restore full name */ + if (!path_already_seen(jcr, attr->ofname, pnl)) { + Dmsg1(100, "Make path %s\n", attr->ofname); + /* + * If we need to make the directory, ensure that it is with + * execute bit set (i.e. parent_mode), and preserve what already + * exists. Normally, this should do nothing. + */ + if (make_path(jcr, attr->ofname, parent_mode, parent_mode, uid, gid, 1, NULL) != 0) { + Dmsg1(10, "Could not make path. %s\n", attr->ofname); + attr->ofname[pnl] = savechr; /* restore full name */ + return CF_ERROR; + } + } + attr->ofname[pnl] = savechr; /* restore full name */ } /* Now we do the specific work for each file type */ - switch(type) { + switch(attr->type) { case FT_REGE: case FT_REG: - Dmsg1(100, "Create file %s\n", ofile); - mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; /* O_NOFOLLOW; */ - if (IS_CTG(statp->st_mode)) { - mode |= O_CTG; /* set contiguous bit if needed */ - } - Dmsg1(50, "Create file: %s\n", ofile); - if ((bopen(ofd, ofile, mode, S_IRUSR | S_IWUSR)) < 0) { - Jmsg2(jcr, M_ERROR, 0, _("Could not create %s: ERR=%s\n"), ofile, strerror(errno)); - return CF_ERROR; - } - return CF_EXTRACT; - - case FT_RAW: /* Bacula raw device e.g. /dev/sda1 */ - case FT_FIFO: /* Bacula fifo to save data */ - case FT_SPEC: - if (S_ISFIFO(statp->st_mode)) { - Dmsg1(200, "Restore fifo: %s\n", ofile); - if (mkfifo(ofile, statp->st_mode) != 0 && errno != EEXIST) { - Jmsg2(jcr, M_ERROR, 0, _("Cannot make fifo %s: ERR=%s\n"), ofile, strerror(errno)); - return CF_ERROR; - } - } else { - Dmsg1(200, "Restore node: %s\n", ofile); - if (mknod(ofile, statp->st_mode, statp->st_rdev) != 0 && errno != EEXIST) { - Jmsg2(jcr, M_ERROR, 0, _("Cannot make node %s: ERR=%s\n"), ofile, strerror(errno)); - return CF_ERROR; - } - } - if (type == FT_RAW || type == FT_FIFO) { - btimer_id tid; - Dmsg1(200, "FT_RAW|FT_FIFO %s\n", ofile); - mode = O_WRONLY | O_BINARY; - /* Timeout open() in 60 seconds */ - if (type == FT_FIFO) { - tid = start_thread_timer(pthread_self(), 60); - } else { - tid = NULL; - } - if ((bopen(ofd, ofile, mode, 0)) < 0) { - Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), ofile, strerror(errno)); - stop_thread_timer(tid); - return CF_ERROR; - } - stop_thread_timer(tid); - return CF_EXTRACT; - } - Dmsg1(200, "FT_SPEC %s\n", ofile); - return CF_CREATED; + Dmsg1(100, "Create file %s\n", attr->ofname); + mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; /* O_NOFOLLOW; */ + if (IS_CTG(attr->statp.st_mode)) { + mode |= O_CTG; /* set contiguous bit if needed */ + } + Dmsg1(50, "Create file: %s\n", attr->ofname); + if (is_bopen(bfd)) { + Jmsg1(jcr, M_ERROR, 0, _("bpkt already open fid=%d\n"), bfd->fid); + bclose(bfd); + } + /* + * If the open fails, we attempt to cd into the directory + * and create the file with a relative path rather than + * the full absolute path. This is for Win32 where + * path names may be too long to create. + */ + if ((bopen(bfd, attr->ofname, mode, S_IRUSR | S_IWUSR)) < 0) { + berrno be; + int stat; + Dmsg2(000, "bopen failed errno=%d: ERR=%s\n", bfd->berrno, + be.strerror(bfd->berrno)); + if (strlen(attr->ofname) > 250) { /* Microsoft limitation */ + char savechr; + char *p, *e; + struct saved_cwd cwd; + savechr = attr->ofname[pnl]; + attr->ofname[pnl] = 0; /* terminate path */ + Dmsg1(000, "Do chdir %s\n", attr->ofname); + if (save_cwd(&cwd) != 0) { + Jmsg0(jcr, M_ERROR, 0, _("Could not save_dirn")); + attr->ofname[pnl] = savechr; + return CF_ERROR; + } + p = attr->ofname; + while ((e = strchr(p, '/'))) { + *e = 0; + if (chdir(p) < 0) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Could not chdir to %s: ERR=%s\n"), + attr->ofname, be.strerror()); + restore_cwd(&cwd, NULL, NULL); + free_cwd(&cwd); + attr->ofname[pnl] = savechr; + *e = '/'; + return CF_ERROR; + } + *e = '/'; + p = e + 1; + } + if (chdir(p) < 0) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Could not chdir to %s: ERR=%s\n"), + attr->ofname, be.strerror()); + restore_cwd(&cwd, NULL, NULL); + free_cwd(&cwd); + attr->ofname[pnl] = savechr; + return CF_ERROR; + } + attr->ofname[pnl] = savechr; + Dmsg1(000, "Do open %s\n", &attr->ofname[pnl+1]); + if ((bopen(bfd, &attr->ofname[pnl+1], mode, S_IRUSR | S_IWUSR)) < 0) { + stat = CF_ERROR; + } else { + stat = CF_EXTRACT; + } + restore_cwd(&cwd, NULL, NULL); + free_cwd(&cwd); + if (stat == CF_EXTRACT) { + return CF_EXTRACT; + } + } + Jmsg2(jcr, M_ERROR, 0, _("Could not create %s: ERR=%s\n"), + attr->ofname, be.strerror(bfd->berrno)); + return CF_ERROR; + } + return CF_EXTRACT; +#ifndef HAVE_WIN32 // none of these exists on MS Windows + case FT_RAW: /* Bacula raw device e.g. /dev/sda1 */ + case FT_FIFO: /* Bacula fifo to save data */ + case FT_SPEC: + if (S_ISFIFO(attr->statp.st_mode)) { + Dmsg1(200, "Restore fifo: %s\n", attr->ofname); + if (mkfifo(attr->ofname, attr->statp.st_mode) != 0 && errno != EEXIST) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Cannot make fifo %s: ERR=%s\n"), + attr->ofname, be.strerror()); + return CF_ERROR; + } + } else { + Dmsg1(200, "Restore node: %s\n", attr->ofname); + if (mknod(attr->ofname, attr->statp.st_mode, attr->statp.st_rdev) != 0 && errno != EEXIST) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Cannot make node %s: ERR=%s\n"), + attr->ofname, be.strerror()); + return CF_ERROR; + } + } + if (attr->type == FT_RAW || attr->type == FT_FIFO) { + btimer_t *tid; + Dmsg1(200, "FT_RAW|FT_FIFO %s\n", attr->ofname); + mode = O_WRONLY | O_BINARY; + /* Timeout open() in 60 seconds */ + if (attr->type == FT_FIFO) { + tid = start_thread_timer(pthread_self(), 60); + } else { + tid = NULL; + } + if (is_bopen(bfd)) { + Jmsg1(jcr, M_ERROR, 0, _("bpkt already open fid=%d\n"), bfd->fid); + } + if ((bopen(bfd, attr->ofname, mode, 0)) < 0) { + berrno be; + be.set_errno(bfd->berrno); + Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), + attr->ofname, be.strerror()); + stop_thread_timer(tid); + return CF_ERROR; + } + stop_thread_timer(tid); + return CF_EXTRACT; + } + Dmsg1(200, "FT_SPEC %s\n", attr->ofname); + return CF_CREATED; case FT_LNK: - Dmsg2(130, "FT_LNK should restore: %s -> %s\n", ofile, lname); - if (symlink(lname, ofile) != 0 && errno != EEXIST) { - Jmsg3(jcr, M_ERROR, 0, _("Could not symlink %s -> %s: ERR=%s\n"), - ofile, lname, strerror(errno)); - return CF_ERROR; - } - return CF_CREATED; - - case FT_LNKSAVED: /* Hard linked, file already saved */ - Dmsg2(130, "Hard link %s => %s\n", ofile, lname); - if (link(lname, ofile) != 0) { - Jmsg3(jcr, M_ERROR, 0, _("Could not hard link %s ==> %s: ERR=%s\n"), - ofile, lname, strerror(errno)); - return CF_ERROR; - } - return CF_CREATED; + Dmsg2(130, "FT_LNK should restore: %s -> %s\n", attr->ofname, attr->olname); + if (symlink(attr->olname, attr->ofname) != 0 && errno != EEXIST) { + berrno be; + Jmsg3(jcr, M_ERROR, 0, _("Could not symlink %s -> %s: ERR=%s\n"), + attr->ofname, attr->olname, be.strerror()); + return CF_ERROR; + } + return CF_CREATED; + case FT_LNKSAVED: /* Hard linked, file already saved */ + Dmsg2(130, "Hard link %s => %s\n", attr->ofname, attr->olname); + if (link(attr->olname, attr->ofname) != 0) { + berrno be; + Jmsg3(jcr, M_ERROR, 0, _("Could not hard link %s -> %s: ERR=%s\n"), + attr->ofname, attr->olname, be.strerror()); + return CF_ERROR; + } + return CF_CREATED; +#endif } /* End inner switch */ - case FT_DIR: - Dmsg2(300, "Make dir mode=%o dir=%s\n", new_mode, ofile); - if (make_path(jcr, ofile, new_mode, parent_mode, uid, gid, 0, NULL) != 0) { - Jmsg1(jcr, M_ERROR, 0, _("Could not make directory: %s\n"), ofile); - return CF_ERROR; + case FT_DIRBEGIN: + case FT_DIREND: + Dmsg2(200, "Make dir mode=%o dir=%s\n", new_mode, attr->ofname); + if (make_path(jcr, attr->ofname, new_mode, parent_mode, uid, gid, 0, NULL) != 0) { + return CF_ERROR; + } + /* + * If we are using the Win32 Backup API, we open the + * directory so that the security info will be read + * and saved. + */ + if (!is_portable_backup(bfd)) { + if (is_bopen(bfd)) { + Jmsg1(jcr, M_ERROR, 0, _("bpkt already open fid=%d\n"), bfd->fid); + } + if ((bopen(bfd, attr->ofname, O_WRONLY|O_BINARY, 0)) < 0) { + berrno be; + be.set_errno(bfd->berrno); +#ifdef HAVE_WIN32 + /* Check for trying to create a drive, if so, skip */ + if (attr->ofname[1] == ':' && attr->ofname[2] == '/' && attr->ofname[3] == 0) { + return CF_SKIP; + } +#endif + Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), + attr->ofname, be.strerror()); + return CF_ERROR; + } + return CF_EXTRACT; + } else { + return CF_CREATED; } - return CF_CREATED; /* The following should not occur */ case FT_NOACCESS: @@ -238,19 +355,21 @@ int create_file(void *jcr, char *fname, char *ofile, char *lname, case FT_NORECURSE: case FT_NOFSCHG: case FT_NOOPEN: - Jmsg2(jcr, M_ERROR, 0, _("Original file %s not saved. Stat=%d\n"), fname, type); + Jmsg2(jcr, M_ERROR, 0, _("Original file %s not saved: type=%d\n"), attr->fname, attr->type); + break; default: - Jmsg2(jcr, M_ERROR, 0, _("Unknown file type %d; not restored: %s\n"), type, fname); + Jmsg2(jcr, M_ERROR, 0, _("Unknown file type %d; not restored: %s\n"), attr->type, attr->fname); + break; } return CF_ERROR; } /* * Returns: > 0 index into path where last path char is. - * 0 no path - * -1 filename is zero - */ -static int separate_path_and_file(void *jcr, char *fname, char *ofile) + * 0 no path + * -1 filename is zero length + */ +static int separate_path_and_file(JCR *jcr, char *fname, char *ofile) { char *f, *p; int fnl, pnl; @@ -258,7 +377,7 @@ static int separate_path_and_file(void *jcr, char *fname, char *ofile) /* Separate pathname and filename */ for (p=f=ofile; *p; p++) { if (*p == '/') { - f = p; /* possible filename */ + f = p; /* possible filename */ } } if (*f == '/') { @@ -273,30 +392,23 @@ static int separate_path_and_file(void *jcr, char *fname, char *ofile) Jmsg1(jcr, M_ERROR, 0, _("Zero length filename: %s\n"), fname); return -1; } - pnl = f - ofile - 1; + pnl = f - ofile - 1; return pnl; } -static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; - -/* - * Primitive caching of path to prevent recreating a pathname +/* + * Primitive caching of path to prevent recreating a pathname * each time as long as we remain in the same directory. */ -static int path_already_seen(char *path, int pnl) +static int path_already_seen(JCR *jcr, char *path, int pnl) { - static int cached_pnl = 0; - static char cached_path[1000]; - - P(mutex); - if (cached_pnl == pnl && strcmp(path, cached_path) == 0) { - V(mutex); - return 1; + if (!jcr->cached_path) { + jcr->cached_path = get_pool_memory(PM_FNAME); } - if (pnl < (int)(sizeof(cached_path)-1)) { - strcpy(cached_path, path); - cached_pnl = pnl; + if (jcr->cached_pnl == pnl && strcmp(path, jcr->cached_path) == 0) { + return 1; } - V(mutex); + pm_strcpy(&jcr->cached_path, path); + jcr->cached_pnl = pnl; return 0; }