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 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;
171 for ( i = 0; i < ngroups; i++ ) {
172 if ( groups[ i ] == gid ) {
179 static __inline__ mode_t mtoubits( bits )
186 mode |= ( bits & AR_UREAD ) ? ( (S_IREAD | S_IEXEC) >> 6 ) : 0;
187 mode |= ( bits & AR_UWRITE ) ? ( (S_IWRITE | S_IEXEC) >> 6 ) : 0;
188 /* I don't think there's a way to set the SEARCH bit by itself on a Mac
189 mode |= ( bits & AR_USEARCH ) ? ( S_IEXEC >> 6 ) : 0; */
194 mode_t mtoumode( ma )
200 mode |= mtoubits( ma->ma_owner );
203 mode |= mtoubits( ma->ma_group );
206 mode |= mtoubits( ma->ma_world );
211 inline int stickydirmode(name, mode, dropbox)
218 /* Turn on the sticky bit if this is a drop box, also turn off the setgid bit */
222 if (mode & S_IWOTH) {
224 else { /* if S_IWOTH and not S_IROTH */
226 if ( seteuid(0) < 0) {
227 syslog( LOG_ERR, "stickydirmode: unable to seteuid root: %m");
229 if ( retval=chmod( name, ( DIRBITS | mode | S_ISVTX) ) < 0) {
230 syslog( LOG_ERR, "stickydirmode: chmod \"%s\": %m", name );
231 return(AFPERR_ACCESS);
234 syslog( LOG_INFO, "stickydirmode: (debug) chmod \"%s\": %m", name );
237 } /* end getting retval */
238 } /* end if not & S_IROTH */
239 } else { /* end if S_IWOTH and not S_IROTH */
241 if ( retval=chmod( name, DIRBITS | mode ) < 0 ) {
242 syslog( LOG_ERR, "stickydirmode: chmod \"%s\": %m", name );
245 } /* end if not mode */
246 } /* end checking for "dropbox" */
247 #endif /* DROPKLUDGE */
251 int setdeskmode( mode )
254 char wd[ MAXPATHLEN + 1];
256 char modbuf[ 12 + 1], *m;
257 struct dirent *deskp, *subp;
260 if ( getcwd( wd , MAXPATHLEN) == NULL ) {
263 if ( chdir( ".AppleDesktop" ) < 0 ) {
266 if (( desk = opendir( "." )) == NULL ) {
267 if ( chdir( wd ) < 0 ) {
268 syslog( LOG_ERR, "setdeskmode: chdir %s: %m", wd );
272 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
273 if ( strcmp( deskp->d_name, "." ) == 0 ||
274 strcmp( deskp->d_name, ".." ) == 0 || strlen( deskp->d_name ) > 2 ) {
277 strcpy( modbuf, deskp->d_name );
278 strcat( modbuf, "/" );
279 m = strchr( modbuf, '\0' );
280 if (( sub = opendir( deskp->d_name )) == NULL ) {
283 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
284 if ( strcmp( subp->d_name, "." ) == 0 ||
285 strcmp( subp->d_name, ".." ) == 0 ) {
289 strcat( modbuf, subp->d_name );
290 /* XXX: need to preserve special modes */
291 if (stat(modbuf, &st) < 0) {
292 syslog( LOG_ERR, "setdeskmode: stat %s: %m", modbuf );
296 if (S_ISDIR(st.st_mode)) {
297 if ( chmod( modbuf, DIRBITS | mode ) < 0 ) {
298 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", modbuf );
300 } else if ( chmod( modbuf, mode ) < 0 ) {
301 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", modbuf );
306 /* XXX: need to preserve special modes */
307 if ( chmod( deskp->d_name, DIRBITS | mode ) < 0 ) {
308 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", deskp->d_name );
312 if ( chdir( wd ) < 0 ) {
313 syslog( LOG_ERR, "setdeskmode: chdir %s: %m", wd );
316 /* XXX: need to preserve special modes */
317 if ( chmod( ".AppleDesktop", DIRBITS | mode ) < 0 ) {
318 syslog( LOG_ERR, "setdeskmode: chmod .AppleDesktop: %m" );
323 int setdirmode( mode, noadouble, dropbox )
328 char buf[ MAXPATHLEN + 1];
334 if (( dir = opendir( "." )) == NULL ) {
335 syslog( LOG_ERR, "setdirmode: opendir .: %m" );
339 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
340 if ( *dirp->d_name == '.' ) {
343 if ( stat( dirp->d_name, &st ) < 0 ) {
344 syslog( LOG_ERR, "setdirmode: stat %s: %m", dirp->d_name );
348 if (S_ISREG(st.st_mode)) {
349 /* XXX: need to preserve special modes */
350 if (S_ISDIR(st.st_mode)) {
351 if (stickydirmode(dirp->d_name, DIRBITS | mode, dropbox) < 0)
353 } else if (stickydirmode(dirp->d_name, mode, dropbox) < 0)
358 if (( dir = opendir( ".AppleDouble" )) == NULL ) {
360 goto setdirmode_noadouble;
361 syslog( LOG_ERR, "setdirmode: opendir .AppleDouble: %m" );
364 strcpy( buf, ".AppleDouble" );
366 m = strchr( buf, '\0' );
367 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
368 if ( strcmp( dirp->d_name, "." ) == 0 ||
369 strcmp( dirp->d_name, ".." ) == 0 ) {
373 strcat( buf, dirp->d_name );
375 if ( stat( buf, &st ) < 0 ) {
376 syslog( LOG_ERR, "setdirmode: stat %s: %m", buf );
380 if (S_ISDIR(st.st_mode)) {
381 stickydirmode( buf, DIRBITS | mode, dropbox );
383 stickydirmode( buf, mode, dropbox );
387 /* XXX: use special bits to tag directory permissions */
389 /* XXX: need to preserve special modes */
390 if ( stickydirmode(".AppleDouble", DIRBITS | mode, dropbox) < 0 )
393 setdirmode_noadouble:
394 /* XXX: need to preserve special modes */
395 if ( stickydirmode(".", DIRBITS | mode, dropbox) < 0 )
400 int setdeskowner( uid, gid )
404 char wd[ MAXPATHLEN + 1];
405 char modbuf[12 + 1], *m;
406 struct dirent *deskp, *subp;
409 if ( getcwd( wd, MAXPATHLEN ) == NULL ) {
412 if ( chdir( ".AppleDesktop" ) < 0 ) {
415 if (( desk = opendir( "." )) == NULL ) {
416 if ( chdir( wd ) < 0 ) {
417 syslog( LOG_ERR, "setdeskowner: chdir %s: %m", wd );
421 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
422 if ( strcmp( deskp->d_name, "." ) == 0 ||
423 strcmp( deskp->d_name, ".." ) == 0 ||
424 strlen( deskp->d_name ) > 2 ) {
427 strcpy( modbuf, deskp->d_name );
428 strcat( modbuf, "/" );
429 m = strchr( modbuf, '\0' );
430 if (( sub = opendir( deskp->d_name )) == NULL ) {
433 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
434 if ( strcmp( subp->d_name, "." ) == 0 ||
435 strcmp( subp->d_name, ".." ) == 0 ) {
439 strcat( modbuf, subp->d_name );
440 /* XXX: add special any uid, ignore group bits */
441 if ( chown( modbuf, uid, gid ) < 0 ) {
442 syslog( LOG_ERR, "setdeskown: chown %s: %m", modbuf );
446 /* XXX: add special any uid, ignore group bits */
447 if ( chown( deskp->d_name, uid, gid ) < 0 ) {
448 syslog( LOG_ERR, "setdeskowner: chown %s: %m", deskp->d_name );
452 if ( chdir( wd ) < 0 ) {
453 syslog( LOG_ERR, "setdeskowner: chdir %s: %m", wd );
456 if ( chown( ".AppleDesktop", uid, gid ) < 0 ) {
457 syslog( LOG_ERR, "setdeskowner: chown .AppleDesktop: %m" );
463 /* uid/gid == 0 need to be handled as special cases. they really mean
464 * that user/group should inherit from other, but that doesn't fit
465 * into the unix permission scheme. we can get around this by
466 * co-opting some bits. */
467 int setdirowner( uid, gid, noadouble )
472 char buf[ MAXPATHLEN + 1];
478 if (( dir = opendir( "." )) == NULL ) {
481 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
482 if ( *dirp->d_name == '.' ) {
485 if ( stat( dirp->d_name, &st ) < 0 ) {
486 syslog( LOG_ERR, "setdirowner: stat %s: %m", dirp->d_name );
489 if (( st.st_mode & S_IFMT ) == S_IFREG ) {
490 if ( chown( dirp->d_name, uid, gid ) < 0 ) {
491 syslog( LOG_DEBUG, "setdirowner: chown %s: %m", dirp->d_name );
492 /* return ( -1 ); Sometimes this is okay */
497 if (( dir = opendir( ".AppleDouble" )) == NULL ) {
499 goto setdirowner_noadouble;
502 strcpy( buf, ".AppleDouble" );
504 m = strchr( buf, '\0' );
505 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
506 if ( strcmp( dirp->d_name, "." ) == 0 ||
507 strcmp( dirp->d_name, ".." ) == 0 ) {
511 strcat( buf, dirp->d_name );
512 if ( chown( buf, uid, gid ) < 0 ) {
513 syslog( LOG_DEBUG, "setdirowner: chown %d/%d %s: %m",
515 /* return ( -1 ); Sometimes this is okay */
521 * We cheat: we know that chown doesn't do anything.
523 if ( stat( ".AppleDouble", &st ) < 0 ) {
524 syslog( LOG_ERR, "setdirowner: stat .AppleDouble: %m" );
527 if ( gid && gid != st.st_gid && chown( ".AppleDouble", uid, gid ) < 0 ) {
528 syslog( LOG_DEBUG, "setdirowner: chown %d/%d .AppleDouble: %m",
530 /* return ( -1 ); Sometimes this is okay */
533 setdirowner_noadouble:
534 if ( stat( ".", &st ) < 0 ) {
537 if ( gid && gid != st.st_gid && chown( ".", uid, gid ) < 0 ) {
538 syslog( LOG_DEBUG, "setdirowner: chown %d/%d .: %m",