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, u_int32_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;
146 * Calculate the mode for a directory using a stat() call to
147 * estimate permission.
149 * Note: the previous method, using access(), does not work correctly
152 * dir parameter is used by AFS
154 void accessmode(char *path, struct maccess *ma, struct dir *dir _U_, struct stat *st)
158 ma->ma_user = ma->ma_owner = ma->ma_world = ma->ma_group = 0;
160 if (lstat(path, &sb) != 0)
166 acltoownermode(path, st, ma);
170 int gmem(const gid_t gid)
174 for ( i = 0; i < ngroups; i++ ) {
175 if ( groups[ i ] == gid ) {
182 static mode_t mtoubits(u_char bits)
188 mode |= ( bits & AR_UREAD ) ? ( (S_IREAD | S_IEXEC) >> 6 ) : 0;
189 mode |= ( bits & AR_UWRITE ) ? ( (S_IWRITE | S_IEXEC) >> 6 ) : 0;
190 /* I don't think there's a way to set the SEARCH bit by itself on a Mac
191 mode |= ( bits & AR_USEARCH ) ? ( S_IEXEC >> 6 ) : 0; */
196 /* ----------------------------------
197 from the finder's share windows (menu--> File--> sharing...)
198 and from AFP 3.0 spec page 63
199 the mac mode should be save somewhere
201 mode_t mtoumode(struct maccess *ma)
206 mode |= mtoubits( ma->ma_owner |ma->ma_world);
209 mode |= mtoubits( ma->ma_group |ma->ma_world);
212 mode |= mtoubits( ma->ma_world );
217 #define EXEC_MODE (S_IXGRP | S_IXUSR | S_IXOTH)
219 int setdeskmode(const mode_t mode)
221 char wd[ MAXPATHLEN + 1];
223 char modbuf[ 12 + 1], *m;
224 struct dirent *deskp, *subp;
227 if (!dir_rx_set(mode)) {
228 /* want to remove read and search access to owner it will screw the volume */
231 if ( getcwd( wd , MAXPATHLEN) == NULL ) {
234 if ( chdir( ".AppleDesktop" ) < 0 ) {
237 if (( desk = opendir( "." )) == NULL ) {
238 if ( chdir( wd ) < 0 ) {
239 LOG(log_error, logtype_afpd, "setdeskmode: chdir %s: %s", wd, strerror(errno) );
243 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
244 if ( strcmp( deskp->d_name, "." ) == 0 ||
245 strcmp( deskp->d_name, ".." ) == 0 || strlen( deskp->d_name ) > 2 ) {
248 strcpy( modbuf, deskp->d_name );
249 strcat( modbuf, "/" );
250 m = strchr( modbuf, '\0' );
251 if (( sub = opendir( deskp->d_name )) == NULL ) {
254 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
255 if ( strcmp( subp->d_name, "." ) == 0 ||
256 strcmp( subp->d_name, ".." ) == 0 ) {
260 strcat( modbuf, subp->d_name );
261 /* XXX: need to preserve special modes */
262 if (lstat(modbuf, &st) < 0) {
263 LOG(log_error, logtype_afpd, "setdeskmode: stat %s: %s",fullpathname(modbuf), strerror(errno) );
267 if (S_ISDIR(st.st_mode)) {
268 if ( chmod( modbuf, (DIRBITS | mode) & ~default_options.umask ) < 0 && errno != EPERM ) {
269 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s",fullpathname(modbuf), strerror(errno) );
271 } else if ( chmod( modbuf, mode & ~(default_options.umask | EXEC_MODE) ) < 0 && errno != EPERM ) {
272 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s",fullpathname(modbuf), strerror(errno) );
277 /* XXX: need to preserve special modes */
278 if ( chmod( deskp->d_name, (DIRBITS | mode) & ~default_options.umask ) < 0 && errno != EPERM ) {
279 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s",fullpathname(deskp->d_name), strerror(errno) );
283 if ( chdir( wd ) < 0 ) {
284 LOG(log_error, logtype_afpd, "setdeskmode: chdir %s: %s", wd, strerror(errno) );
287 /* XXX: need to preserve special modes */
288 if ( chmod( ".AppleDesktop", (DIRBITS | mode) & ~default_options.umask ) < 0 && errno != EPERM ) {
289 LOG(log_error, logtype_afpd, "setdeskmode: chmod %s: %s", fullpathname(".AppleDesktop"),strerror(errno) );
294 /* --------------------- */
295 int setfilunixmode (const struct vol *vol, struct path* path, mode_t mode)
297 if (!path->st_valid) {
301 if (path->st_errno) {
305 mode |= vol->v_fperm;
307 if (setfilmode( path->u_name, mode, &path->st, vol->v_umask) < 0)
309 /* we need to set write perm if read set for resource fork */
310 return vol->vfs->vfs_setfilmode(vol, path->u_name, mode, &path->st);
314 /* --------------------- */
315 int setdirunixmode(const struct vol *vol, const char *name, mode_t mode)
317 LOG(log_debug, logtype_afpd, "setdirunixmode('%s', mode:%04o) {v_dperm:%04o}",
318 fullpathname(name), mode, vol->v_dperm);
320 mode |= vol->v_dperm;
322 if (dir_rx_set(mode)) {
323 /* extending right? dir first then .AppleDouble in rf_setdirmode */
324 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
327 if (vol->vfs->vfs_setdirunixmode(vol, name, mode, NULL) < 0 && !vol_noadouble(vol)) {
330 if (!dir_rx_set(mode)) {
331 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
337 /* --------------------- */
338 int setdirmode(const struct vol *vol, const char *name, mode_t mode)
345 mode |= vol->v_dperm;
346 hf_mode = ad_hf_mode(mode);
348 if (dir_rx_set(mode)) {
349 /* extending right? dir first */
350 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
354 if (( dir = opendir( name )) == NULL ) {
355 LOG(log_error, logtype_afpd, "setdirmode: opendir: %s", fullpathname(name), strerror(errno) );
359 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
361 if (*dirp->d_name == '.') {
364 if ( lstat( dirp->d_name, &st ) < 0 ) {
365 LOG(log_error, logtype_afpd, "setdirmode: stat %s: %s",dirp->d_name, strerror(errno) );
369 if (!S_ISDIR(st.st_mode)) {
370 if (setfilmode(dirp->d_name, mode, &st, vol->v_umask) < 0) {
371 LOG(log_error, logtype_afpd, "setdirmode: chmod %s: %s",dirp->d_name, strerror(errno) );
378 if (vol->vfs->vfs_setdirmode(vol, name, mode, NULL) < 0 && !vol_noadouble(vol)) {
382 if (!dir_rx_set(mode)) {
383 if ( stickydirmode(name, DIRBITS | mode, 0, vol->v_umask) < 0 )
389 /* ----------------------------- */
390 int setdeskowner(const uid_t uid, const gid_t gid)
392 char wd[ MAXPATHLEN + 1];
393 char modbuf[12 + 1], *m;
394 struct dirent *deskp, *subp;
397 if ( getcwd( wd, MAXPATHLEN ) == NULL ) {
400 if ( chdir( ".AppleDesktop" ) < 0 ) {
403 if (( desk = opendir( "." )) == NULL ) {
404 if ( chdir( wd ) < 0 ) {
405 LOG(log_error, logtype_afpd, "setdeskowner: chdir %s: %s", wd, strerror(errno) );
409 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
410 if ( strcmp( deskp->d_name, "." ) == 0 ||
411 strcmp( deskp->d_name, ".." ) == 0 ||
412 strlen( deskp->d_name ) > 2 ) {
415 strcpy( modbuf, deskp->d_name );
416 strcat( modbuf, "/" );
417 m = strchr( modbuf, '\0' );
418 if (( sub = opendir( deskp->d_name )) == NULL ) {
421 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
422 if ( strcmp( subp->d_name, "." ) == 0 ||
423 strcmp( subp->d_name, ".." ) == 0 ) {
427 strcat( modbuf, subp->d_name );
428 /* XXX: add special any uid, ignore group bits */
429 if ( chown( modbuf, uid, gid ) < 0 && errno != EPERM ) {
430 LOG(log_error, logtype_afpd, "setdeskown: chown %s: %s", fullpathname(modbuf), strerror(errno) );
434 /* XXX: add special any uid, ignore group bits */
435 if ( chown( deskp->d_name, uid, gid ) < 0 && errno != EPERM ) {
436 LOG(log_error, logtype_afpd, "setdeskowner: chown %s: %s",
437 deskp->d_name, strerror(errno) );
441 if ( chdir( wd ) < 0 ) {
442 LOG(log_error, logtype_afpd, "setdeskowner: chdir %s: %s", wd, strerror(errno) );
445 if ( chown( ".AppleDesktop", uid, gid ) < 0 && errno != EPERM ) {
446 LOG(log_error, logtype_afpd, "setdeskowner: chown %s: %s", fullpathname(".AppleDouble"), strerror(errno) );
451 /* ----------------------------- */
452 int setfilowner(const struct vol *vol, const uid_t uid, const gid_t gid, struct path* path)
455 if (!path->st_valid) {
459 if (path->st_errno) {
463 if ( lchown( path->u_name, uid, gid ) < 0 && errno != EPERM ) {
464 LOG(log_debug, logtype_afpd, "setfilowner: chown %d/%d %s: %s",
465 uid, gid, path->u_name, strerror(errno) );
469 if (vol->vfs->vfs_chown(vol, path->u_name, uid, gid ) < 0 && errno != EPERM) {
470 LOG(log_debug, logtype_afpd, "setfilowner: rf_chown %d/%d %s: %s",
471 uid, gid, path->u_name, strerror(errno) );
478 /* ---------------------------------
479 * uid/gid == 0 need to be handled as special cases. they really mean
480 * that user/group should inherit from other, but that doesn't fit
481 * into the unix permission scheme. we can get around this by
482 * co-opting some bits. */
483 int setdirowner(const struct vol *vol, const char *name, const uid_t uid, const gid_t gid)
489 if (( dir = opendir( name )) == NULL ) {
492 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
493 if ( *dirp->d_name == '.') {
496 if ( lstat( dirp->d_name, &st ) < 0 ) {
497 LOG(log_error, logtype_afpd, "setdirowner: stat %s: %s",
498 fullpathname(dirp->d_name), strerror(errno) );
501 if (( st.st_mode & S_IFMT ) == S_IFREG ) {
502 if ( lchown( dirp->d_name, uid, gid ) < 0 && errno != EPERM ) {
503 LOG(log_debug, logtype_afpd, "setdirowner: chown %s: %s",
504 fullpathname(dirp->d_name), strerror(errno) );
505 /* return ( -1 ); Sometimes this is okay */
511 if (vol->vfs->vfs_setdirowner(vol, name, uid, gid) < 0) {
515 if ( lstat( ".", &st ) < 0 ) {
518 if ( gid && gid != st.st_gid && lchown( ".", uid, gid ) < 0 && errno != EPERM ) {
519 LOG(log_debug, logtype_afpd, "setdirowner: chown %d/%d %s: %s",
520 uid, gid, fullpathname("."), strerror(errno) );
527 /* recursive chown()ing of a directory */
528 static int recursive_chown(const char *path, uid_t uid, gid_t gid) {
531 struct dirent *entry;
534 char newpath[PATH_MAX+1];
535 newpath[PATH_MAX] = '\0';
537 if (chown(path, uid, gid) < 0) {
538 LOG(log_error, logtype_afpd, "cannot chown() file [%s] (uid = %d): %s", path, uid, strerror(errno));
542 if (lstat(path, &sbuf) < 0) {
543 LOG(log_error, logtype_afpd, "cannot chown() file [%s] (uid = %d): %s", path, uid, strerror(errno));
547 if (S_ISDIR(sbuf.st_mode)) {
548 odir = opendir(path);
550 LOG(log_error, logtype_afpd, "cannot opendir() [%s] (uid = %d): %s", path, uid, strerror(errno));
551 goto recursive_chown_end;
553 while (NULL != (entry=readdir(odir)) ) {
554 name = entry->d_name;
555 if (name[0] == '.' && name[1] == '\0')
557 if (name[0] == '.' && name[1] == '.' && name[2] == '\0')
559 sprintf(newpath, "%s/%s", path, name);
560 if (recursive_chown(newpath, uid, gid) < 0)