/*
- * $Id: directory.c,v 1.123 2010-01-05 15:12:19 franklahm Exp $
+ * $Id: directory.c,v 1.140 2010-03-12 15:16:49 franklahm Exp $
*
* Copyright (c) 1990,1993 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
extern void addir_inherit_acl(const struct vol *vol);
#endif
+/*
+ * Directory caches
+ * ================
+ *
+ * There are currently two cache structures where afpd caches directory information
+ * a) a DID/dirname cache in a hashtable
+ * b) a (red-black) tree with CNIDs as key
+ *
+ * a) is for searching by DID/dirname
+ * b) is for searching by CNID
+ *
+ * Through additional parent, child, previous and next pointers, b) is also used to
+ * represent the on-disk layout of the filesystem. parent and child point to parent
+ * and child directory respectively, linking 2 or more subdirectories in one
+ * directory with previous and next pointers.
+ *
+ * Usage examples, highlighting the main functions:
+ *
+ * a) is eg used in enumerate():
+ * if IS_DIR
+ * dir = dirsearch_byname() // search in cache
+ * if (dir == NULL) // not found
+ * dir = adddir() // add to cache
+ * getdirparams()
+ *
+ * b) is eg used in afp_getfildirparams()
+ * dirlookup() // wrapper for cache and db search
+ * => dir = dirsearch() // search in cache
+ * if (dir) // found
+ * return
+ * else // not found,
+ * cnid_resolve() // resolve with CNID database
+ * cname() // add to cache
+ */
+
struct dir *curdir;
-int afp_errno;
+int afp_errno;
#define SENTINEL (&sentinel)
-static struct dir sentinel = { SENTINEL, SENTINEL, NULL, DIRTREE_COLOR_BLACK,
- NULL, NULL, NULL, NULL, NULL, 0, 0,
- 0, 0, NULL, NULL, 0, NULL};
-static struct dir rootpar = { SENTINEL, SENTINEL, NULL, 0,
- NULL, NULL, NULL, NULL, NULL, 0, 0,
- 0, 0, NULL, NULL, 0, NULL};
+static struct dir sentinel = { SENTINEL, SENTINEL, NULL, /* left, right, back */
+ DIRTREE_COLOR_BLACK, /* color */
+ NULL, NULL, /* parent, child */
+ NULL, NULL, /* previous, next */
+ NULL, 0, 0, /* oforks, did, flags */
+ 0, 0, /* ctime, offcnt */
+ NULL, NULL, NULL}; /* mname, uname, ucs2-name */
+static struct dir rootpar = { SENTINEL, SENTINEL, NULL,
+ 0,
+ NULL, NULL,
+ NULL, NULL,
+ NULL, 0, 0,
+ 0, 0,
+ NULL, NULL, NULL};
/* (from IM: Toolbox Essentials)
* dirFinderInfo (DInfo) fields:
key.d_parent = cdir;
key.d_u_name = name;
- key.d_u_name_len = strlen(name);
hn = hash_lookup(vol->v_hash, &key);
if (hn) {
dir = hnode_get(hn);
}
/* ------------------- */
-static int deletedir(char *dir)
+static int deletedir(int dirfd, char *dir)
{
char path[MAXPATHLEN + 1];
DIR *dp;
return AFPERR_PARAM;
/* already gone */
- if ((dp = opendir(dir)) == NULL)
+ if ((dp = opendirat(dirfd, dir)) == NULL)
return AFP_OK;
strcpy(path, dir);
break;
}
strcpy(path + len, de->d_name);
- if (stat(path, &st)) {
+ if (lstatat(dirfd, path, &st)) {
continue;
}
if (S_ISDIR(st.st_mode)) {
- err = deletedir(path);
+ err = deletedir(dirfd, path);
} else {
- err = netatalk_unlink(path);
+ err = netatalk_unlinkat(dirfd, path);
}
}
closedir(dp);
/* okay. the directory is empty. delete it. note: we already got rid
of .AppleDouble. */
if (err == AFP_OK) {
- err = netatalk_rmdir(dir);
+ err = netatalk_rmdir(dirfd, dir);
}
return err;
}
/* do a recursive copy. */
-static int copydir(const struct vol *vol, char *src, char *dst)
+static int copydir(const struct vol *vol, int dirfd, char *src, char *dst)
{
char spath[MAXPATHLEN + 1], dpath[MAXPATHLEN + 1];
DIR *dp;
/* doesn't exist or the path is too long. */
if (((slen = strlen(src)) > sizeof(spath) - 2) ||
((dlen = strlen(dst)) > sizeof(dpath) - 2) ||
- ((dp = opendir(src)) == NULL))
+ ((dp = opendirat(dirfd, src)) == NULL))
return AFPERR_PARAM;
/* try to create the destination directory */
}
strcpy(spath + slen, de->d_name);
- if (stat(spath, &st) == 0) {
+ if (lstatat(dirfd, spath, &st) == 0) {
if (strlen(de->d_name) > drem) {
err = AFPERR_PARAM;
break;
strcpy(dpath + dlen, de->d_name);
if (S_ISDIR(st.st_mode)) {
- if (AFP_OK != (err = copydir(vol, spath, dpath)))
+ if (AFP_OK != (err = copydir(vol, dirfd, spath, dpath)))
goto copydir_done;
- } else if (AFP_OK != (err = copyfile(vol, vol, spath, dpath, NULL, NULL))) {
+ } else if (AFP_OK != (err = copyfile(vol, vol, dirfd, spath, dpath, NULL, NULL))) {
goto copydir_done;
} else {
}
/* keep the same time stamp. */
- if (stat(src, &st) == 0) {
+ if (lstatat(dirfd, src, &st) == 0) {
ut.actime = ut.modtime = st.st_mtime;
utime(dst, &ut);
}
char *upath;
struct stat *st;
int deleted;
+ struct adouble ad;
+ struct adouble *adp = NULL;
cnid_t id;
upath = path->u_name;
st = &path->st;
upathlen = strlen(upath);
- id = get_id(vol, NULL, st, dir->d_did, upath, upathlen);
+ /* get_id needs adp for reading CNID from adouble file */
+ ad_init(&ad, vol->v_adouble, vol->v_ad_options);
+ if ((ad_open_metadata(upath, ADFLAGS_DIR, 0, &ad)) == 0)
+ adp = &ad;
+
+ id = get_id(vol, adp, st, dir->d_did, upath, upathlen);
+
+ if (adp)
+ ad_close_metadata(adp);
+
if (id == 0) {
return NULL;
}
return NULL;
}
- dir->d_u_name_len = strlen(dir->d_u_name);
dir->d_m_name_ucs2 = NULL;
dir->d_left = dir->d_right = SENTINEL;
dir->d_next = dir->d_prev = dir;
return dir;
}
+#if 0
/* ------------------ */
static hash_val_t hash_fun_dir(const void *key)
{
}
return acc;
}
+#endif
#undef get16bits
#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
{
const struct dir *k = key;
const char *data = k->d_u_name;
- int len = k->d_u_name_len;
+ int len = strlen(k->d_u_name);
hash_val_t hash = k->d_parent->d_did, tmp;
int rem = len & 3;
struct dir *d;
char *p, *u;
int n;
+ int ret;
if ( dir == curdir ) {
return( 0 );
}
p = path + sizeof(path) - 1;
- *p-- = '\0';
- *p = '.';
+ *p = '\0';
for ( d = dir; d->d_parent != NULL && d != curdir; d = d->d_parent ) {
u = d->d_u_name;
if (!u) {
p -= n;
memcpy( p, vol->v_path, n );
}
- if ( chdir( p ) < 0 ) {
+ if ( (ret = lchdir(p )) != 0 ) {
+ LOG(log_debug, logtype_afpd, "movecwd('%s'): ret:%d, %u/%s", p, ret, errno, strerror(errno));
+
+ if (ret == 1) {
+ /* p is a symlink or getcwd failed */
+ afp_errno = AFPERR_BADTYPE;
+ vol->v_curdir = curdir = vol->v_dir;
+ if (chdir(vol->v_path ) < 0) {
+ LOG(log_debug, logtype_afpd, "can't chdir back'%s': %s", vol->v_path, strerror(errno));
+ /* XXX what do we do here? */
+ }
+ return -1;
+ }
switch (errno) {
case EACCES:
case EPERM:
(1 << DIRPBIT_FINFO)))) {
ad_init(&ad, vol->v_adouble, vol->v_ad_options);
- if ( !ad_metadata( upath, ADFLAGS_DIR, &ad) ) {
+ if ( !ad_metadata( upath, ADFLAGS_CREATE|ADFLAGS_DIR, &ad) ) {
isad = 1;
+ if (ad.ad_md->adf_flags & O_CREAT) {
+ /* We just created it */
+ ad_setname(&ad, s_path->m_name);
+ ad_setid( &ad,
+ s_path->st.st_dev,
+ s_path->st.st_ino,
+ dir->d_did,
+ dir->d_parent->d_did,
+ vol->v_stamp);
+ ad_flush( &ad);
+ }
}
}
int bit, isad = 1;
int cdate, bdate;
int owner, group;
- u_int16_t ashort, bshort;
+ u_int16_t ashort, bshort, oshort;
int err = AFP_OK;
int change_mdate = 0;
int change_parent_mdate = 0;
case DIRPBIT_ATTR :
if (isad) {
ad_getattr(&ad, &bshort);
- if ((bshort & htons(ATTRBIT_INVISIBLE)) !=
- (ashort & htons(ATTRBIT_INVISIBLE) & htons(ATTRBIT_SETCLR)) )
- change_parent_mdate = 1;
+ oshort = bshort;
if ( ntohs( ashort ) & ATTRBIT_SETCLR ) {
bshort |= htons( ntohs( ashort ) & ~ATTRBIT_SETCLR );
} else {
bshort &= ~ashort;
}
+ if ((bshort & htons(ATTRBIT_INVISIBLE)) != (oshort & htons(ATTRBIT_INVISIBLE)))
+ change_parent_mdate = 1;
ad_setattr(&ad, bshort);
}
break;
* dst new unix filename (not a pathname)
* newname new mac name
* newparent curdir
- *
+ * dirfd -1 means ignore dirfd (or use AT_FDCWD), otherwise src is relative to dirfd
*/
-int renamedir(const struct vol *vol, char *src, char *dst,
+int renamedir(const struct vol *vol,
+ int dirfd,
+ char *src,
+ char *dst,
struct dir *dir,
struct dir *newparent,
char *newname)
int len, err;
/* existence check moved to afp_moveandrename */
- if ( unix_rename( src, dst ) < 0 ) {
+ if ( unix_rename(dirfd, src, -1, dst ) < 0 ) {
switch ( errno ) {
case ENOENT :
return( AFPERR_NOOBJ );
case EXDEV:
/* this needs to copy and delete. bleah. that means we have
* to deal with entire directory hierarchies. */
- if ((err = copydir(vol, src, dst)) < 0) {
- deletedir(dst);
+ if ((err = copydir(vol, dirfd, src, dst)) < 0) {
+ deletedir(-1, dst);
return err;
}
- if ((err = deletedir(src)) < 0)
+ if ((err = deletedir(dirfd, src)) < 0)
return err;
break;
default :
}
}
- vol->vfs->vfs_renamedir(vol, src, dst);
+ vol->vfs->vfs_renamedir(vol, dirfd, src, dst);
len = strlen( newname );
/* rename() succeeded so we need to update our tree even if we can't open
if ( ad_metadata( ".", ADFLAGS_DIR, &ad) == 0 ) {
ad_getattr(&ad, &ashort);
- ad_close( &ad, ADFLAGS_HF );
+ ad_close_metadata(&ad);
if ((ashort & htons(ATTRBIT_NODELETE))) {
return AFPERR_OLOCK;
}
goto delete_done;
}
- if ( !(err = netatalk_rmdir(fdir->d_u_name))) {
+ err = netatalk_rmdir_all_errors(-1, fdir->d_u_name);
+ if ( err == AFP_OK || err == AFPERR_NOOBJ) {
dirchildremove(curdir, fdir);
cnid_delete(vol->v_cdb, fdir->d_did);
dir_remove( vol, fdir );
- err = AFP_OK;
}
delete_done:
if (dp) {