2 * Copyright (c) 1990,1993 Regents of The University of Michigan.
3 * All Rights Reserved. See COPYRIGHT.
13 #include <sys/types.h>
14 #include <sys/param.h>
16 #include <sys/syslog.h>
17 #include <netatalk/endian.h>
20 #include <atalk/afp.h>
24 #include "directory.h"
29 * Get the free space on a partition.
31 int ustatfs_getvolspace( vol, bfree, btotal, bsize )
32 const struct vol *vol;
33 VolSpace *bfree, *btotal;
36 VolSpace maxVolSpace = (~(VolSpace)0);
45 if ( statfs( vol->v_path, &sfs ) < 0 ) {
46 syslog(LOG_ERR, "ustatfs_getvolspace unable to stat %s", vol->v_path);
47 return( AFPERR_PARAM );
51 *bfree = (VolSpace) sfs.fd_req.bfreen;
54 *bfree = (VolSpace) sfs.f_bavail;
55 *bsize = sfs.f_frsize;
58 if ( *bfree > maxVolSpace / *bsize ) {
66 ( sfs.fd_req.btot - ( sfs.fd_req.bfree - sfs.fd_req.bfreen ));
69 ( sfs.f_blocks - ( sfs.f_bfree - sfs.f_bavail ));
72 // see similar block above comments
73 if ( *btotal > maxVolSpace / *bsize ) {
74 *btotal = maxVolSpace;
82 static __inline__ int utombits( bits )
89 mbits |= ( bits & ( S_IREAD >> 6 )) ? (AR_UREAD | AR_USEARCH) : 0;
90 mbits |= ( bits & ( S_IWRITE >> 6 )) ? AR_UWRITE : 0;
91 /* Do we really need this?
92 mbits |= ( bits & ( S_IEXEC >> 6) ) ? AR_USEARCH : 0; */
97 void utommode( stat, ma )
103 mode = stat->st_mode;
105 ma->ma_world = utombits( mode );
108 ma->ma_group = utombits( mode );
111 ma->ma_owner = utombits( mode );
113 if ( (uuid == stat->st_uid) || (uuid == 0)) {
114 ma->ma_user = ma->ma_owner | AR_UOWN;
115 } else if ( gmem( stat->st_gid )) {
116 ma->ma_user = ma->ma_group;
118 ma->ma_user = ma->ma_world;
122 * There are certain things the mac won't try if you don't have
123 * the "owner" bit set, even tho you can do these things on unix wiht
124 * only write permission. What were the things?
126 if ( ma->ma_user & AR_UWRITE ) {
127 ma->ma_user |= AR_UOWN;
133 * Calculate the mode for a directory using Posix access() calls to
134 * estimate permission, a la mdw.
136 void accessmode( path, ma, dir )
141 if ( access( path, R_OK|W_OK|X_OK ) == 0 ) {
142 ma->ma_user = AR_UREAD|AR_UWRITE|AR_USEARCH|AR_UOWN;
143 ma->ma_owner = AR_UREAD|AR_UWRITE|AR_USEARCH;
144 } else if ( access( path, R_OK|X_OK ) == 0 ) {
145 ma->ma_user = AR_UREAD|AR_USEARCH;
146 ma->ma_owner = AR_UREAD|AR_USEARCH;
148 ma->ma_user = ma->ma_owner = 0;
149 if ( access( path, R_OK ) == 0 ) {
150 ma->ma_user |= AR_UREAD;
151 ma->ma_owner |= AR_UREAD;
153 if ( access( path, X_OK ) == 0 ) {
154 ma->ma_user |= AR_USEARCH;
155 ma->ma_owner |= AR_USEARCH;
157 if ( access( path, W_OK ) == 0 ) {
158 ma->ma_user |= AR_UWRITE|AR_UOWN;
159 ma->ma_owner |= AR_UWRITE;
169 for ( i = 0; i < ngroups; i++ ) {
170 if ( groups[ i ] == gid ) {
177 static __inline__ mode_t mtoubits( bits )
184 mode |= ( bits & AR_UREAD ) ? ( (S_IREAD | S_IEXEC) >> 6 ) : 0;
185 mode |= ( bits & AR_UWRITE ) ? ( (S_IWRITE | S_IEXEC) >> 6 ) : 0;
186 /* I don't think there's a way to set the SEARCH bit by itself on a Mac
187 mode |= ( bits & AR_USEARCH ) ? ( S_IEXEC >> 6 ) : 0; */
192 mode_t mtoumode( ma )
198 mode |= mtoubits( ma->ma_owner );
201 mode |= mtoubits( ma->ma_group );
204 mode |= mtoubits( ma->ma_world );
209 inline int stickydirmode(name, mode, dropbox)
216 /* Turn on the sticky bit if this is a drop box, also turn off the setgid bit */
220 if (mode & S_IWOTH) {
222 else { /* if S_IWOTH and not S_IROTH */
224 if ( seteuid(0) < 0) {
225 syslog( LOG_ERR, "stickydirmode: unable to seteuid root: %m");
227 if ( retval=chmod( name, ( DIRBITS | mode | S_ISVTX) ) < 0) {
228 syslog( LOG_ERR, "stickydirmode: chmod \"%s\": %m", name );
229 return(AFPERR_ACCESS);
232 syslog( LOG_INFO, "stickydirmode: (debug) chmod \"%s\": %m", name );
235 } /* end getting retval */
236 } /* end if not & S_IROTH */
237 } else { /* end if S_IWOTH and not S_IROTH */
239 if ( (retval=chmod( name, DIRBITS | mode )) < 0 ) {
240 syslog( LOG_ERR, "stickydirmode: chmod \"%s\": %m", name );
243 } /* end if not mode */
244 } /* end checking for "dropbox" */
245 #endif /* DROPKLUDGE */
249 int setdeskmode( mode )
252 char wd[ MAXPATHLEN + 1];
254 char modbuf[ 12 + 1], *m;
255 struct dirent *deskp, *subp;
258 if ( getcwd( wd , MAXPATHLEN) == NULL ) {
261 if ( chdir( ".AppleDesktop" ) < 0 ) {
264 if (( desk = opendir( "." )) == NULL ) {
265 if ( chdir( wd ) < 0 ) {
266 syslog( LOG_ERR, "setdeskmode: chdir %s: %m", wd );
270 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
271 if ( strcmp( deskp->d_name, "." ) == 0 ||
272 strcmp( deskp->d_name, ".." ) == 0 || strlen( deskp->d_name ) > 2 ) {
275 strcpy( modbuf, deskp->d_name );
276 strcat( modbuf, "/" );
277 m = strchr( modbuf, '\0' );
278 if (( sub = opendir( deskp->d_name )) == NULL ) {
281 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
282 if ( strcmp( subp->d_name, "." ) == 0 ||
283 strcmp( subp->d_name, ".." ) == 0 ) {
287 strcat( modbuf, subp->d_name );
288 /* XXX: need to preserve special modes */
289 if (stat(modbuf, &st) < 0) {
290 syslog( LOG_ERR, "setdeskmode: stat %s: %m", modbuf );
294 if (S_ISDIR(st.st_mode)) {
295 if ( chmod( modbuf, DIRBITS | mode ) < 0 ) {
296 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", modbuf );
298 } else if ( chmod( modbuf, mode ) < 0 ) {
299 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", modbuf );
304 /* XXX: need to preserve special modes */
305 if ( chmod( deskp->d_name, DIRBITS | mode ) < 0 ) {
306 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", deskp->d_name );
310 if ( chdir( wd ) < 0 ) {
311 syslog( LOG_ERR, "setdeskmode: chdir %s: %m", wd );
314 /* XXX: need to preserve special modes */
315 if ( chmod( ".AppleDesktop", DIRBITS | mode ) < 0 ) {
316 syslog( LOG_ERR, "setdeskmode: chmod .AppleDesktop: %m" );
321 int setdirmode( mode, noadouble, dropbox )
326 char buf[ MAXPATHLEN + 1];
332 if (( dir = opendir( "." )) == NULL ) {
333 syslog( LOG_ERR, "setdirmode: opendir .: %m" );
337 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
338 if ( *dirp->d_name == '.' ) {
341 if ( stat( dirp->d_name, &st ) < 0 ) {
342 syslog( LOG_ERR, "setdirmode: stat %s: %m", dirp->d_name );
346 if (S_ISREG(st.st_mode)) {
347 /* XXX: need to preserve special modes */
348 if (S_ISDIR(st.st_mode)) {
349 if (stickydirmode(dirp->d_name, DIRBITS | mode, dropbox) < 0)
351 } else if (stickydirmode(dirp->d_name, mode, dropbox) < 0)
356 if (( dir = opendir( ".AppleDouble" )) == NULL ) {
358 goto setdirmode_noadouble;
359 syslog( LOG_ERR, "setdirmode: opendir .AppleDouble: %m" );
362 strcpy( buf, ".AppleDouble" );
364 m = strchr( buf, '\0' );
365 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
366 if ( strcmp( dirp->d_name, "." ) == 0 ||
367 strcmp( dirp->d_name, ".." ) == 0 ) {
371 strcat( buf, dirp->d_name );
373 if ( stat( buf, &st ) < 0 ) {
374 syslog( LOG_ERR, "setdirmode: stat %s: %m", buf );
378 if (S_ISDIR(st.st_mode)) {
379 stickydirmode( buf, DIRBITS | mode, dropbox );
381 stickydirmode( buf, mode, dropbox );
385 /* XXX: use special bits to tag directory permissions */
387 /* XXX: need to preserve special modes */
388 if ( stickydirmode(".AppleDouble", DIRBITS | mode, dropbox) < 0 )
391 setdirmode_noadouble:
392 /* XXX: need to preserve special modes */
393 if ( stickydirmode(".", DIRBITS | mode, dropbox) < 0 )
398 int setdeskowner( uid, gid )
402 char wd[ MAXPATHLEN + 1];
403 char modbuf[12 + 1], *m;
404 struct dirent *deskp, *subp;
407 if ( getcwd( wd, MAXPATHLEN ) == NULL ) {
410 if ( chdir( ".AppleDesktop" ) < 0 ) {
413 if (( desk = opendir( "." )) == NULL ) {
414 if ( chdir( wd ) < 0 ) {
415 syslog( LOG_ERR, "setdeskowner: chdir %s: %m", wd );
419 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
420 if ( strcmp( deskp->d_name, "." ) == 0 ||
421 strcmp( deskp->d_name, ".." ) == 0 ||
422 strlen( deskp->d_name ) > 2 ) {
425 strcpy( modbuf, deskp->d_name );
426 strcat( modbuf, "/" );
427 m = strchr( modbuf, '\0' );
428 if (( sub = opendir( deskp->d_name )) == NULL ) {
431 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
432 if ( strcmp( subp->d_name, "." ) == 0 ||
433 strcmp( subp->d_name, ".." ) == 0 ) {
437 strcat( modbuf, subp->d_name );
438 /* XXX: add special any uid, ignore group bits */
439 if ( chown( modbuf, uid, gid ) < 0 ) {
440 syslog( LOG_ERR, "setdeskown: chown %s: %m", modbuf );
444 /* XXX: add special any uid, ignore group bits */
445 if ( chown( deskp->d_name, uid, gid ) < 0 ) {
446 syslog( LOG_ERR, "setdeskowner: chown %s: %m", deskp->d_name );
450 if ( chdir( wd ) < 0 ) {
451 syslog( LOG_ERR, "setdeskowner: chdir %s: %m", wd );
454 if ( chown( ".AppleDesktop", uid, gid ) < 0 ) {
455 syslog( LOG_ERR, "setdeskowner: chown .AppleDesktop: %m" );
461 /* uid/gid == 0 need to be handled as special cases. they really mean
462 * that user/group should inherit from other, but that doesn't fit
463 * into the unix permission scheme. we can get around this by
464 * co-opting some bits. */
465 int setdirowner( uid, gid, noadouble )
470 char buf[ MAXPATHLEN + 1];
476 if (( dir = opendir( "." )) == NULL ) {
479 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
480 if ( *dirp->d_name == '.' ) {
483 if ( stat( dirp->d_name, &st ) < 0 ) {
484 syslog( LOG_ERR, "setdirowner: stat %s: %m", dirp->d_name );
487 if (( st.st_mode & S_IFMT ) == S_IFREG ) {
488 if ( chown( dirp->d_name, uid, gid ) < 0 ) {
489 syslog( LOG_DEBUG, "setdirowner: chown %s: %m", dirp->d_name );
490 /* return ( -1 ); Sometimes this is okay */
495 if (( dir = opendir( ".AppleDouble" )) == NULL ) {
497 goto setdirowner_noadouble;
500 strcpy( buf, ".AppleDouble" );
502 m = strchr( buf, '\0' );
503 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
504 if ( strcmp( dirp->d_name, "." ) == 0 ||
505 strcmp( dirp->d_name, ".." ) == 0 ) {
509 strcat( buf, dirp->d_name );
510 if ( chown( buf, uid, gid ) < 0 ) {
511 syslog( LOG_DEBUG, "setdirowner: chown %d/%d %s: %m",
513 /* return ( -1 ); Sometimes this is okay */
519 * We cheat: we know that chown doesn't do anything.
521 if ( stat( ".AppleDouble", &st ) < 0 ) {
522 syslog( LOG_ERR, "setdirowner: stat .AppleDouble: %m" );
525 if ( gid && gid != st.st_gid && chown( ".AppleDouble", uid, gid ) < 0 ) {
526 syslog( LOG_DEBUG, "setdirowner: chown %d/%d .AppleDouble: %m",
528 /* return ( -1 ); Sometimes this is okay */
531 setdirowner_noadouble:
532 if ( stat( ".", &st ) < 0 ) {
535 if ( gid && gid != st.st_gid && chown( ".", uid, gid ) < 0 ) {
536 syslog( LOG_DEBUG, "setdirowner: chown %d/%d .: %m",