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)
217 /* Turn on the sticky bit if this is a drop box, also turn off the setgid bit */
222 else /* if S_IWOTH and not S_IROTH */
226 syslog( LOG_ERR, "stickydirmode: unable to seteuid root: %m");
227 if ( retval=chmod( name, ( DIRBITS | mode | S_ISVTX) ) < 0)
229 syslog( LOG_ERR, "stickydirmode: chmod \"%s\": %m", name );
230 return(AFPERR_ACCESS);
235 syslog( LOG_INFO, "stickydirmode: (debug) chmod \"%s\": %m", name );
242 if ( retval=chmod( name, DIRBITS | mode ) < 0 )
243 syslog( LOG_ERR, "stickydirmode: chmod \"%s\": %m", name );
247 int setdeskmode( mode )
250 char wd[ MAXPATHLEN + 1];
252 char modbuf[ 12 + 1], *m;
253 struct dirent *deskp, *subp;
256 if ( getcwd( wd , MAXPATHLEN) == NULL ) {
259 if ( chdir( ".AppleDesktop" ) < 0 ) {
262 if (( desk = opendir( "." )) == NULL ) {
263 if ( chdir( wd ) < 0 ) {
264 syslog( LOG_ERR, "setdeskmode: chdir %s: %m", wd );
268 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
269 if ( strcmp( deskp->d_name, "." ) == 0 ||
270 strcmp( deskp->d_name, ".." ) == 0 || strlen( deskp->d_name ) > 2 ) {
273 strcpy( modbuf, deskp->d_name );
274 strcat( modbuf, "/" );
275 m = strchr( modbuf, '\0' );
276 if (( sub = opendir( deskp->d_name )) == NULL ) {
279 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
280 if ( strcmp( subp->d_name, "." ) == 0 ||
281 strcmp( subp->d_name, ".." ) == 0 ) {
285 strcat( modbuf, subp->d_name );
286 /* XXX: need to preserve special modes */
287 if (stat(modbuf, &st) < 0) {
288 syslog( LOG_ERR, "setdeskmode: stat %s: %m", modbuf );
292 if (S_ISDIR(st.st_mode)) {
293 if ( chmod( modbuf, DIRBITS | mode ) < 0 ) {
294 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", modbuf );
296 } else if ( chmod( modbuf, mode ) < 0 ) {
297 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", modbuf );
302 /* XXX: need to preserve special modes */
303 if ( chmod( deskp->d_name, DIRBITS | mode ) < 0 ) {
304 syslog( LOG_ERR, "setdeskmode: chmod %s: %m", deskp->d_name );
308 if ( chdir( wd ) < 0 ) {
309 syslog( LOG_ERR, "setdeskmode: chdir %s: %m", wd );
312 /* XXX: need to preserve special modes */
313 if ( chmod( ".AppleDesktop", DIRBITS | mode ) < 0 ) {
314 syslog( LOG_ERR, "setdeskmode: chmod .AppleDesktop: %m" );
319 int setdirmode( mode, noadouble )
323 char buf[ MAXPATHLEN + 1];
329 if (( dir = opendir( "." )) == NULL ) {
330 syslog( LOG_ERR, "setdirmode: opendir .: %m" );
334 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
335 if ( *dirp->d_name == '.' ) {
338 if ( stat( dirp->d_name, &st ) < 0 ) {
339 syslog( LOG_ERR, "setdirmode: stat %s: %m", dirp->d_name );
343 if (S_ISREG(st.st_mode)) {
344 /* XXX: need to preserve special modes */
345 if (S_ISDIR(st.st_mode)) {
346 if (stickydirmode(dirp->d_name, DIRBITS | mode) < 0)
348 } else if (stickydirmode(dirp->d_name, mode) < 0)
353 if (( dir = opendir( ".AppleDouble" )) == NULL ) {
355 goto setdirmode_noadouble;
356 syslog( LOG_ERR, "setdirmode: opendir .AppleDouble: %m" );
359 strcpy( buf, ".AppleDouble" );
361 m = strchr( buf, '\0' );
362 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
363 if ( strcmp( dirp->d_name, "." ) == 0 ||
364 strcmp( dirp->d_name, ".." ) == 0 ) {
368 strcat( buf, dirp->d_name );
370 if ( stat( buf, &st ) < 0 ) {
371 syslog( LOG_ERR, "setdirmode: stat %s: %m", buf );
375 if (S_ISDIR(st.st_mode)) {
376 stickydirmode( buf, DIRBITS | mode );
378 stickydirmode( buf, mode );
382 /* XXX: use special bits to tag directory permissions */
384 /* XXX: need to preserve special modes */
385 if ( stickydirmode(".AppleDouble", DIRBITS | mode) < 0 )
388 setdirmode_noadouble:
389 /* XXX: need to preserve special modes */
390 if ( stickydirmode(".", DIRBITS | mode) < 0 )
395 int setdeskowner( uid, gid )
399 char wd[ MAXPATHLEN + 1];
400 char modbuf[12 + 1], *m;
401 struct dirent *deskp, *subp;
404 if ( getcwd( wd, MAXPATHLEN ) == NULL ) {
407 if ( chdir( ".AppleDesktop" ) < 0 ) {
410 if (( desk = opendir( "." )) == NULL ) {
411 if ( chdir( wd ) < 0 ) {
412 syslog( LOG_ERR, "setdeskowner: chdir %s: %m", wd );
416 for ( deskp = readdir( desk ); deskp != NULL; deskp = readdir( desk )) {
417 if ( strcmp( deskp->d_name, "." ) == 0 ||
418 strcmp( deskp->d_name, ".." ) == 0 ||
419 strlen( deskp->d_name ) > 2 ) {
422 strcpy( modbuf, deskp->d_name );
423 strcat( modbuf, "/" );
424 m = strchr( modbuf, '\0' );
425 if (( sub = opendir( deskp->d_name )) == NULL ) {
428 for ( subp = readdir( sub ); subp != NULL; subp = readdir( sub )) {
429 if ( strcmp( subp->d_name, "." ) == 0 ||
430 strcmp( subp->d_name, ".." ) == 0 ) {
434 strcat( modbuf, subp->d_name );
435 /* XXX: add special any uid, ignore group bits */
436 if ( chown( modbuf, uid, gid ) < 0 ) {
437 syslog( LOG_ERR, "setdeskown: chown %s: %m", modbuf );
441 /* XXX: add special any uid, ignore group bits */
442 if ( chown( deskp->d_name, uid, gid ) < 0 ) {
443 syslog( LOG_ERR, "setdeskowner: chown %s: %m", deskp->d_name );
447 if ( chdir( wd ) < 0 ) {
448 syslog( LOG_ERR, "setdeskowner: chdir %s: %m", wd );
451 if ( chown( ".AppleDesktop", uid, gid ) < 0 ) {
452 syslog( LOG_ERR, "setdeskowner: chown .AppleDesktop: %m" );
458 /* uid/gid == 0 need to be handled as special cases. they really mean
459 * that user/group should inherit from other, but that doesn't fit
460 * into the unix permission scheme. we can get around this by
461 * co-opting some bits. */
462 int setdirowner( uid, gid, noadouble )
467 char buf[ MAXPATHLEN + 1];
473 if (( dir = opendir( "." )) == NULL ) {
476 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
477 if ( *dirp->d_name == '.' ) {
480 if ( stat( dirp->d_name, &st ) < 0 ) {
481 syslog( LOG_ERR, "setdirowner: stat %s: %m", dirp->d_name );
484 if (( st.st_mode & S_IFMT ) == S_IFREG ) {
485 if ( chown( dirp->d_name, uid, gid ) < 0 ) {
486 syslog( LOG_ERR, "setdirowner: chown %s: %m", dirp->d_name );
487 /* return ( -1 ); Sometimes this is okay */
492 if (( dir = opendir( ".AppleDouble" )) == NULL ) {
494 goto setdirowner_noadouble;
497 strcpy( buf, ".AppleDouble" );
499 m = strchr( buf, '\0' );
500 for ( dirp = readdir( dir ); dirp != NULL; dirp = readdir( dir )) {
501 if ( strcmp( dirp->d_name, "." ) == 0 ||
502 strcmp( dirp->d_name, ".." ) == 0 ) {
506 strcat( buf, dirp->d_name );
507 if ( chown( buf, uid, gid ) < 0 ) {
508 syslog( LOG_ERR, "setdirowner: chown %d/%d %s: %m",
510 /* return ( -1 ); Sometimes this is okay */
516 * We cheat: we know that chown doesn't do anything.
518 if ( stat( ".AppleDouble", &st ) < 0 ) {
519 syslog( LOG_ERR, "setdirowner: stat .AppleDouble: %m" );
522 if ( gid && gid != st.st_gid && chown( ".AppleDouble", uid, gid ) < 0 ) {
523 syslog( LOG_ERR, "setdirowner: chown %d/%d .AppleDouble: %m",
525 /* return ( -1 ); Sometimes this is okay */
528 setdirowner_noadouble:
529 if ( stat( ".", &st ) < 0 ) {
532 if ( gid && gid != st.st_gid && chown( ".", uid, gid ) < 0 ) {
533 syslog( LOG_ERR, "setdirowner: chown %d/%d .: %m",