2 * Copyright (c) 1990,1993 Regents of The University of Michigan.
3 * All Rights Reserved. See COPYRIGHT.
8 #endif /* HAVE_CONFIG_H */
15 #include <sys/param.h>
16 #include <atalk/logger.h>
17 #include <atalk/adouble.h>
18 #include <atalk/vfs.h>
19 #include <atalk/afp.h>
20 #include <atalk/util.h>
21 #include <atalk/unix.h>
22 #include <atalk/acl.h>
25 #include "directory.h"
34 * Get the free space on a partition.
36 int ustatfs_getvolspace(const struct vol *vol, VolSpace *bfree, VolSpace *btotal, uint32_t *bsize)
38 VolSpace maxVolSpace = (~(VolSpace)0);
47 if ( statfs( vol->v_path, &sfs ) < 0 ) {
48 LOG(log_error, logtype_afpd, "ustatfs_getvolspace unable to stat %s", vol->v_path);
49 return( AFPERR_PARAM );
53 *bfree = (VolSpace) sfs.fd_req.bfreen;
56 *bfree = (VolSpace) sfs.f_bavail;
57 *bsize = sfs.f_frsize;
60 if ( *bfree > maxVolSpace / *bsize ) {
68 ( sfs.fd_req.btot - ( sfs.fd_req.bfree - sfs.fd_req.bfreen ));
71 ( sfs.f_blocks - ( sfs.f_bfree - sfs.f_bavail ));
74 /* see similar block above comments */
75 if ( *btotal > maxVolSpace / *bsize ) {
76 *btotal = maxVolSpace;
84 static int utombits(mode_t bits)
90 mbits |= ( bits & ( S_IREAD >> 6 )) ? AR_UREAD : 0;
91 mbits |= ( bits & ( S_IWRITE >> 6 )) ? AR_UWRITE : 0;
92 /* Do we really need this? */
93 mbits |= ( bits & ( S_IEXEC >> 6) ) ? AR_USEARCH : 0;
98 /* --------------------------------
101 void utommode(struct stat *stat, struct maccess *ma)
105 mode = stat->st_mode;
106 ma->ma_world = utombits( mode );
109 ma->ma_group = utombits( mode );
112 ma->ma_owner = utombits( mode );
114 /* ma_user is a union of all permissions but we must follow
117 if ( (uuid == stat->st_uid) || (uuid == 0)) {
118 ma->ma_user = ma->ma_owner | AR_UOWN;
120 else if ( gmem( stat->st_gid )) {
121 ma->ma_user = ma->ma_group;
124 ma->ma_user = ma->ma_world;
128 * There are certain things the mac won't try if you don't have
129 * the "owner" bit set, even tho you can do these things on unix wiht
130 * only write permission. What were the things?
133 * ditto seems to care if st_uid is 0 ?
134 * was ma->ma_user & AR_UWRITE
135 * but 0 as owner is a can of worms.
137 if ( !stat->st_uid ) {
138 ma->ma_user |= AR_UOWN;
147 * Calculate the mode for a directory using a stat() call to
148 * estimate permission.
150 * Note: the previous method, using access(), does not work correctly
153 * dir parameter is used by AFS
155 void accessmode(char *path, struct maccess *ma, struct dir *dir _U_, struct stat *st)
159 ma->ma_user = ma->ma_owner = ma->ma_world = ma->ma_group = 0;
161 if (lstat(path, &sb) != 0)
167 acltoownermode(path, st, ma);
171 int gmem(const gid_t gid)
175 for ( i = 0; i < ngroups; i++ ) {
176 if ( groups[ i ] == gid ) {
183 static mode_t mtoubits(u_char bits)
189 mode |= ( bits & AR_UREAD ) ? ( (S_IREAD | S_IEXEC) >> 6 ) : 0;
190 mode |= ( bits & AR_UWRITE ) ? ( (S_IWRITE | S_IEXEC) >> 6 ) : 0;
191 /* I don't think there's a way to set the SEARCH bit by itself on a Mac
192 mode |= ( bits & AR_USEARCH ) ? ( S_IEXEC >> 6 ) : 0; */
197 /* ----------------------------------
198 from the finder's share windows (menu--> File--> sharing...)
199 and from AFP 3.0 spec page 63
200 the mac mode should be save somewhere
202 mode_t mtoumode(struct maccess *ma)
207 mode |= mtoubits( ma->ma_owner |ma->ma_world);
210 mode |= mtoubits( ma->ma_group |ma->ma_world);
213 mode |= mtoubits( ma->ma_world );
218 #define EXEC_MODE (S_IXGRP | S_IXUSR | S_IXOTH)
220 int setdeskmode(const mode_t mode)
222 char wd[ MAXPATHLEN + 1];
224 char modbuf[ 12 + 1], *m;
225 struct dirent *deskp, *subp;
228 if (!dir_rx_set(mode)) {
229 /* want to remove read and search access to owner it will screw the volume */
232 if ( getcwd( wd , MAXPATHLEN) == NULL ) {
235 if ( chdir( ".AppleDesktop" ) < 0 ) {
238 if (( desk = opendir( "." )) == NULL ) {
239 if ( chdir( wd ) < 0 ) {
240 LOG(log_error, logtype_afpd, "setdeskmode: chdir %s: %s", wd, strerror(errno) );
244 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
245 if ( strcmp( deskp->d_name, "." ) == 0 ||
246 strcmp( deskp->d_name, ".." ) == 0 || strlen( deskp->d_name ) > 2 ) {
249 strcpy( modbuf, deskp->d_name );
250 strcat( modbuf, "/" );
251 m = strchr( modbuf, '\0' );
252 if (( sub = opendir( deskp->d_name )) == NULL ) {
255 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
256 if ( strcmp( subp->d_name, "." ) == 0 ||
257 strcmp( subp->d_name, ".." ) == 0 ) {
261 strcat( modbuf, subp->d_name );
262 /* XXX: need to preserve special modes */
263 if (lstat(modbuf, &st) < 0) {
264 LOG(log_error, logtype_afpd, "setdeskmode: stat %s: %s",fullpathname(modbuf), strerror(errno) );
268 if (S_ISDIR(st.st_mode)) {
269 if ( chmod( modbuf, (DIRBITS | mode) & ~default_options.umask ) < 0 && errno != EPERM ) {
270 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s",fullpathname(modbuf), strerror(errno) );
272 } else if ( chmod( modbuf, mode & ~(default_options.umask | EXEC_MODE) ) < 0 && errno != EPERM ) {
273 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s",fullpathname(modbuf), strerror(errno) );
278 /* XXX: need to preserve special modes */
279 if ( chmod( deskp->d_name, (DIRBITS | mode) & ~default_options.umask ) < 0 && errno != EPERM ) {
280 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s",fullpathname(deskp->d_name), strerror(errno) );
284 if ( chdir( wd ) < 0 ) {
285 LOG(log_error, logtype_afpd, "setdeskmode: chdir %s: %s", wd, strerror(errno) );
288 /* XXX: need to preserve special modes */
289 if ( chmod( ".AppleDesktop", (DIRBITS | mode) & ~default_options.umask ) < 0 && errno != EPERM ) {
290 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s", fullpathname(".AppleDesktop"),strerror(errno) );
295 /* --------------------- */
296 int setfilunixmode (const struct vol *vol, struct path* path, mode_t mode)
298 if (!path->st_valid) {
302 if (path->st_errno) {
306 mode |= vol->v_fperm;
308 if (setfilmode( path->u_name, mode, &path->st, vol->v_umask) < 0)
310 /* we need to set write perm if read set for resource fork */
311 return vol->vfs->vfs_setfilmode(vol, path->u_name, mode, &path->st);
315 /* --------------------- */
316 int setdirunixmode(const struct vol *vol, const char *name, mode_t mode)
318 LOG(log_debug, logtype_afpd, "setdirunixmode('%s', mode:%04o) {v_dperm:%04o}",
319 fullpathname(name), mode, vol->v_dperm);
321 mode |= vol->v_dperm;
323 if (dir_rx_set(mode)) {
324 /* extending right? dir first then .AppleDouble in rf_setdirmode */
325 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
328 if (vol->vfs->vfs_setdirunixmode(vol, name, mode, NULL) < 0 && !vol_noadouble(vol)) {
331 if (!dir_rx_set(mode)) {
332 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
338 /* --------------------- */
339 int setdirmode(const struct vol *vol, const char *name, mode_t mode)
346 mode |= vol->v_dperm;
347 hf_mode = ad_hf_mode(mode);
349 if (dir_rx_set(mode)) {
350 /* extending right? dir first */
351 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
355 if (( dir = opendir( name )) == NULL ) {
356 LOG(log_error, logtype_afpd, "setdirmode: opendir: %s", fullpathname(name), strerror(errno) );
360 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
362 if (*dirp->d_name == '.') {
365 if ( lstat( dirp->d_name, &st ) < 0 ) {
366 LOG(log_error, logtype_afpd, "setdirmode: stat %s: %s",dirp->d_name, strerror(errno) );
370 if (!S_ISDIR(st.st_mode)) {
371 if (setfilmode(dirp->d_name, mode, &st, vol->v_umask) < 0) {
372 LOG(log_error, logtype_afpd, "setdirmode: chmod %s: %s",dirp->d_name, strerror(errno) );
379 if (vol->vfs->vfs_setdirmode(vol, name, mode, NULL) < 0 && !vol_noadouble(vol)) {
383 if (!dir_rx_set(mode)) {
384 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
390 /* ----------------------------- */
391 int setdeskowner(const uid_t uid, const gid_t gid)
393 char wd[ MAXPATHLEN + 1];
394 char modbuf[12 + 1], *m;
395 struct dirent *deskp, *subp;
398 if ( getcwd( wd, MAXPATHLEN ) == NULL ) {
401 if ( chdir( ".AppleDesktop" ) < 0 ) {
404 if (( desk = opendir( "." )) == NULL ) {
405 if ( chdir( wd ) < 0 ) {
406 LOG(log_error, logtype_afpd, "setdeskowner: chdir %s: %s", wd, strerror(errno) );
410 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
411 if ( strcmp( deskp->d_name, "." ) == 0 ||
412 strcmp( deskp->d_name, ".." ) == 0 ||
413 strlen( deskp->d_name ) > 2 ) {
416 strcpy( modbuf, deskp->d_name );
417 strcat( modbuf, "/" );
418 m = strchr( modbuf, '\0' );
419 if (( sub = opendir( deskp->d_name )) == NULL ) {
422 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
423 if ( strcmp( subp->d_name, "." ) == 0 ||
424 strcmp( subp->d_name, ".." ) == 0 ) {
428 strcat( modbuf, subp->d_name );
429 /* XXX: add special any uid, ignore group bits */
430 if ( chown( modbuf, uid, gid ) < 0 && errno != EPERM ) {
431 LOG(log_error, logtype_afpd, "setdeskown: chown %s: %s", fullpathname(modbuf), strerror(errno) );
435 /* XXX: add special any uid, ignore group bits */
436 if ( chown( deskp->d_name, uid, gid ) < 0 && errno != EPERM ) {
437 LOG(log_error, logtype_afpd, "setdeskowner: chown %s: %s",
438 deskp->d_name, strerror(errno) );
442 if ( chdir( wd ) < 0 ) {
443 LOG(log_error, logtype_afpd, "setdeskowner: chdir %s: %s", wd, strerror(errno) );
446 if ( chown( ".AppleDesktop", uid, gid ) < 0 && errno != EPERM ) {
447 LOG(log_error, logtype_afpd, "setdeskowner: chown %s: %s", fullpathname(".AppleDouble"), strerror(errno) );
452 /* ----------------------------- */
453 int setfilowner(const struct vol *vol, const uid_t uid, const gid_t gid, struct path* path)
456 if (!path->st_valid) {
460 if (path->st_errno) {
464 if ( lchown( path->u_name, uid, gid ) < 0 && errno != EPERM ) {
465 LOG(log_debug, logtype_afpd, "setfilowner: chown %d/%d %s: %s",
466 uid, gid, path->u_name, strerror(errno) );
470 if (vol->vfs->vfs_chown(vol, path->u_name, uid, gid ) < 0 && errno != EPERM) {
471 LOG(log_debug, logtype_afpd, "setfilowner: rf_chown %d/%d %s: %s",
472 uid, gid, path->u_name, strerror(errno) );
479 /* ---------------------------------
480 * uid/gid == 0 need to be handled as special cases. they really mean
481 * that user/group should inherit from other, but that doesn't fit
482 * into the unix permission scheme. we can get around this by
483 * co-opting some bits. */
484 int setdirowner(const struct vol *vol, const char *name, const uid_t uid, const gid_t gid)
490 if (( dir = opendir( name )) == NULL ) {
493 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
494 if ( *dirp->d_name == '.') {
497 if ( lstat( dirp->d_name, &st ) < 0 ) {
498 LOG(log_error, logtype_afpd, "setdirowner: stat %s: %s",
499 fullpathname(dirp->d_name), strerror(errno) );
502 if (( st.st_mode & S_IFMT ) == S_IFREG ) {
503 if ( lchown( dirp->d_name, uid, gid ) < 0 && errno != EPERM ) {
504 LOG(log_debug, logtype_afpd, "setdirowner: chown %s: %s",
505 fullpathname(dirp->d_name), strerror(errno) );
506 /* return ( -1 ); Sometimes this is okay */
512 if (vol->vfs->vfs_setdirowner(vol, name, uid, gid) < 0) {
516 if ( lstat( ".", &st ) < 0 ) {
519 if ( gid && gid != st.st_gid && lchown( ".", uid, gid ) < 0 && errno != EPERM ) {
520 LOG(log_debug, logtype_afpd, "setdirowner: chown %d/%d %s: %s",
521 uid, gid, fullpathname("."), strerror(errno) );
528 /* recursive chown()ing of a directory */
529 static int recursive_chown(const char *path, uid_t uid, gid_t gid) {
532 struct dirent *entry;
535 char newpath[PATH_MAX+1];
536 newpath[PATH_MAX] = '\0';
538 if (chown(path, uid, gid) < 0) {
539 LOG(log_error, logtype_afpd, "cannot chown() file [%s] (uid = %d): %s", path, uid, strerror(errno));
543 if (lstat(path, &sbuf) < 0) {
544 LOG(log_error, logtype_afpd, "cannot chown() file [%s] (uid = %d): %s", path, uid, strerror(errno));
548 if (S_ISDIR(sbuf.st_mode)) {
549 odir = opendir(path);
551 LOG(log_error, logtype_afpd, "cannot opendir() [%s] (uid = %d): %s", path, uid, strerror(errno));
552 goto recursive_chown_end;
554 while (NULL != (entry=readdir(odir)) ) {
555 name = entry->d_name;
556 if (name[0] == '.' && name[1] == '\0')
558 if (name[0] == '.' && name[1] == '.' && name[2] == '\0')
560 sprintf(newpath, "%s/%s", path, name);
561 if (recursive_chown(newpath, uid, gid) < 0)