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/*
* Copyright (c) 1990,1993 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <grp.h>
#include <pwd.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <errno.h>
#include <utime.h>
#include <assert.h>
#include <atalk/adouble.h>
#include <atalk/vfs.h>
#include <atalk/afp.h>
#include <atalk/util.h>
#include <atalk/cnid.h>
#include <atalk/logger.h>
#include <atalk/uuid.h>
#include <atalk/unix.h>
#include <atalk/bstrlib.h>
#include <atalk/bstradd.h>
#include <atalk/errchk.h>
#include <atalk/globals.h>
#include <atalk/fce_api.h>
#include <atalk/netatalk_conf.h>
#include "directory.h"
#include "dircache.h"
#include "desktop.h"
#include "volume.h"
#include "fork.h"
#include "file.h"
#include "filedir.h"
#include "unix.h"
#include "mangle.h"
#include "hash.h"
/*
* FIXMEs, loose ends after the dircache rewrite:
* o merge dircache_search_by_name and dir_add ??
* o case-insensitivity is gone from cname
*/
/*******************************************************************************************
* Globals
******************************************************************************************/
int afp_errno;
/* As long as directory.c hasn't got its own init call, this get initialized in dircache_init */
struct dir rootParent = {
NULL, NULL, NULL, NULL, /* path, d_m_name, d_u_name, d_m_name_ucs2 */
NULL, 0, 0, /* qidx_node, ctime, d_flags */
0, 0, 0, 0 /* pdid, did, offcnt, d_vid */
};
struct dir *curdir = &rootParent;
struct path Cur_Path = {
0,
"", /* mac name */
".", /* unix name */
0, /* id */
NULL,/* struct dir * */
0, /* stat is not set */
0, /* errno */
{0} /* struct stat */
};
/*
* dir_remove queues struct dirs to be freed here. We can't just delete them immeidately
* e.g. in dircache_search_by_id, because a caller somewhere up the stack might be
* referencing it.
* So instead:
* - we mark it as invalid by setting d_did to CNID_INVALID (ie 0)
* - queue it in "invalid_dircache_entries" queue
* - which is finally freed at the end of every AFP func in afp_dsi.c.
*/
q_t *invalid_dircache_entries;
/*******************************************************************************************
* Locals
******************************************************************************************/
/* -------------------------
appledouble mkdir afp error code.
*/
static int netatalk_mkdir(const struct vol *vol, const char *name)
{
int ret;
struct stat st;
if (vol->v_flags & AFPVOL_UNIX_PRIV) {
if (lstat(".", &st) < 0)
return AFPERR_MISC;
int mode = (DIRBITS & (~S_ISGID & st.st_mode)) | (0777 & ~vol->v_umask);
LOG(log_maxdebug, logtype_afpd, "netatalk_mkdir(\"%s\") {parent mode: %04o, vol umask: %04o}",
name, st.st_mode, vol->v_umask);
ret = mkdir(name, mode);
} else {
ret = ad_mkdir(name, DIRBITS | 0777);
}
if (ret < 0) {
switch ( errno ) {
case ENOENT :
return( AFPERR_NOOBJ );
case EROFS :
return( AFPERR_VLOCK );
case EPERM:
case EACCES :
return( AFPERR_ACCESS );
case EEXIST :
return( AFPERR_EXIST );
case ENOSPC :
case EDQUOT :
return( AFPERR_DFULL );
default :
return( AFPERR_PARAM );
}
}
return AFP_OK;
}
/* ------------------- */
static int deletedir(const struct vol *vol, int dirfd, char *dir)
{
char path[MAXPATHLEN + 1];
DIR *dp;
struct dirent *de;
struct stat st;
size_t len;
int err = AFP_OK;
size_t remain;
if ((len = strlen(dir)) +2 > sizeof(path))
return AFPERR_PARAM;
/* already gone */
if ((dp = opendirat(dirfd, dir)) == NULL)
return AFP_OK;
strcpy(path, dir);
strcat(path, "/");
len++;
remain = sizeof(path) -len -1;
while ((de = readdir(dp)) && err == AFP_OK) {
/* skip this and previous directory */
if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
continue;
if (strlen(de->d_name) > remain) {
err = AFPERR_PARAM;
break;
}
strcpy(path + len, de->d_name);
if (ostatat(dirfd, path, &st, vol_syml_opt(vol))) {
continue;
}
if (S_ISDIR(st.st_mode)) {
err = deletedir(vol, dirfd, path);
} else {
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(dirfd, dir);
}
return err;
}
/* do a recursive copy. */
static int copydir(struct vol *vol, struct dir *ddir, int dirfd, char *src, char *dst)
{
char spath[MAXPATHLEN + 1], dpath[MAXPATHLEN + 1];
DIR *dp;
struct dirent *de;
struct stat st;
struct utimbuf ut;
size_t slen, dlen;
size_t srem, drem;
int err;
/* doesn't exist or the path is too long. */
if (((slen = strlen(src)) > sizeof(spath) - 2) ||
((dlen = strlen(dst)) > sizeof(dpath) - 2) ||
((dp = opendirat(dirfd, src)) == NULL))
return AFPERR_PARAM;
/* try to create the destination directory */
if (AFP_OK != (err = netatalk_mkdir(vol, dst)) ) {
closedir(dp);
return err;
}
/* set things up to copy */
strcpy(spath, src);
strcat(spath, "/");
slen++;
srem = sizeof(spath) - slen -1;
strcpy(dpath, dst);
strcat(dpath, "/");
dlen++;
drem = sizeof(dpath) - dlen -1;
err = AFP_OK;
while ((de = readdir(dp))) {
/* skip this and previous directory */
if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
continue;
if (strlen(de->d_name) > srem) {
err = AFPERR_PARAM;
break;
}
strcpy(spath + slen, de->d_name);
if (ostatat(dirfd, spath, &st, vol_syml_opt(vol)) == 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, ddir, dirfd, spath, dpath)))
goto copydir_done;
} else if (AFP_OK != (err = copyfile(vol, vol, ddir, dirfd, spath, dpath, NULL, NULL))) {
goto copydir_done;
} else {
/* keep the same time stamp. */
ut.actime = ut.modtime = st.st_mtime;
utime(dpath, &ut);
}
}
}
/* keep the same time stamp. */
if (ostatat(dirfd, src, &st, vol_syml_opt(vol)) == 0) {
ut.actime = ut.modtime = st.st_mtime;
utime(dst, &ut);
}
copydir_done:
closedir(dp);
return err;
}
/* ---------------------
* is our cached offspring count valid?
*/
static int diroffcnt(struct dir *dir, struct stat *st)
{
return st->st_ctime == dir->d_ctime;
}
/* --------------------- */
static int invisible_dots(const struct vol *vol, const char *name)
{
return vol_inv_dots(vol) && *name == '.' && strcmp(name, ".") && strcmp(name, "..");
}
/* ------------------ */
static int set_dir_errors(struct path *path, const char *where, int err)
{
switch ( err ) {
case EPERM :
case EACCES :
return AFPERR_ACCESS;
case EROFS :
return AFPERR_VLOCK;
}
LOG(log_error, logtype_afpd, "setdirparam(%s): %s: %s", fullpathname(path->u_name), where, strerror(err) );
return AFPERR_PARAM;
}
/*!
* @brief Convert name in client encoding to server encoding
*
* Convert ret->m_name to ret->u_name from client encoding to server encoding.
* This only gets called from cname().
*
* @returns 0 on success, -1 on error
*
* @note If the passed ret->m_name is mangled, we'll demangle it
*/
static int cname_mtouname(const struct vol *vol, struct dir *dir, struct path *ret, int toUTF8)
{
static char temp[ MAXPATHLEN + 1];
char *t;
cnid_t fileid = 0;
if (vol->v_obj->afp_version >= 30) {
if (toUTF8) {
if (dir->d_did == DIRDID_ROOT_PARENT) {
/*
* With uft8 volume name is utf8-mac, but requested path may be a mangled longname. See #2611981.
* So we compare it with the longname from the current volume and if they match
* we overwrite the requested path with the utf8 volume name so that the following
* strcmp can match.
*/
ucs2_to_charset(vol->v_maccharset, vol->v_macname, temp, AFPVOL_MACNAMELEN + 1);
if (strcasecmp(ret->m_name, temp) == 0)
ucs2_to_charset(CH_UTF8_MAC, vol->v_u8mname, ret->m_name, AFPVOL_U8MNAMELEN);
} else {
/* toUTF8 */
if (mtoUTF8(vol, ret->m_name, strlen(ret->m_name), temp, MAXPATHLEN) == (size_t)-1) {
afp_errno = AFPERR_PARAM;
return -1;
}
strcpy(ret->m_name, temp);
}
}
/* check for OS X mangled filename :( */
t = demangle_osx(vol, ret->m_name, dir->d_did, &fileid);
if (curdir == NULL) {
/* demangle_osx() calls dirlookup() which might have clobbered curdir */
movecwd(vol, dir);
}
LOG(log_maxdebug, logtype_afpd, "cname_mtouname('%s',did:%u) {demangled:'%s', fileid:%u}",
ret->m_name, ntohl(dir->d_did), t, ntohl(fileid));
if (t != ret->m_name) {
ret->u_name = t;
/* duplicate work but we can't reuse all convert_char we did in demangle_osx
* flags weren't the same
*/
if ( (t = utompath(vol, ret->u_name, fileid, utf8_encoding(vol->v_obj))) ) {
/* at last got our view of mac name */
strcpy(ret->m_name, t);
}
}
} /* afp_version >= 30 */
/* If we haven't got it by now, get it */
if (ret->u_name == NULL) {
if ((ret->u_name = mtoupath(vol, ret->m_name, dir->d_did, utf8_encoding(vol->v_obj))) == NULL) {
afp_errno = AFPERR_PARAM;
return -1;
}
}
return 0;
}
/*!
* @brief Build struct path from struct dir
*
* The final movecwd in cname failed, possibly with EPERM or ENOENT. We:
* 1. move cwd into parent dir (we're often already there, but not always)
* 2. set struct path to the dirname
* 3. in case of
* AFPERR_ACCESS: the dir is there, we just can't chdir into it
* AFPERR_NOOBJ: the dir was there when we stated it in cname, so we have a race
* 4. indicate there's no dir for this path
* 5. remove the dir
*/
static struct path *path_from_dir(struct vol *vol, struct dir *dir, struct path *ret)
{
if (dir->d_did == DIRDID_ROOT_PARENT || dir->d_did == DIRDID_ROOT)
return NULL;
switch (afp_errno) {
case AFPERR_ACCESS:
if (movecwd( vol, dirlookup(vol, dir->d_pdid)) < 0 ) /* 1 */
return NULL;
memcpy(ret->m_name, cfrombstr(dir->d_m_name), blength(dir->d_m_name) + 1); /* 3 */
if (dir->d_m_name == dir->d_u_name) {
ret->u_name = ret->m_name;
} else {
ret->u_name = ret->m_name + blength(dir->d_m_name) + 1;
memcpy(ret->u_name, cfrombstr(dir->d_u_name), blength(dir->d_u_name) + 1);
}
ret->d_dir = dir;
LOG(log_debug, logtype_afpd, "cname('%s') {path-from-dir: AFPERR_ACCESS. curdir:'%s', path:'%s'}",
cfrombstr(dir->d_fullpath),
cfrombstr(curdir->d_fullpath),
ret->u_name);
return ret;
case AFPERR_NOOBJ:
if (movecwd(vol, dirlookup(vol, dir->d_pdid)) < 0 ) /* 1 */
return NULL;
memcpy(ret->m_name, cfrombstr(dir->d_m_name), blength(dir->d_m_name) + 1);
if (dir->d_m_name == dir->d_u_name) {
ret->u_name = ret->m_name;
} else {
ret->u_name = ret->m_name + blength(dir->d_m_name) + 1;
memcpy(ret->u_name, cfrombstr(dir->d_u_name), blength(dir->d_u_name) + 1);
}
ret->d_dir = NULL; /* 4 */
dir_remove(vol, dir); /* 5 */
return ret;
default:
return NULL;
}
/* DEADC0DE: never get here */
return NULL;
}
/*********************************************************************************************
* Interface
********************************************************************************************/
int get_afp_errno(const int param)
{
if (afp_errno != AFPERR_DID1)
return afp_errno;
return param;
}
/*!
* Resolve struct dir for an absolute path
*
* Given a path like "/Volumes/volume/dir/subdir" in a volume "/Volumes/volume" return
* a pointer to struct dir of "subdir".
* 1. Remove volue path from absolute path
* 2. start path
* 3. loop through all elements of the remaining path from 1.
* 4. we only allow dirs
* 5. search dircache
* 6. if not found in the dircache query the CNID database for the DID
* 7. and use dirlookup to resolve the DID to a it's struct dir *
*
* @param vol (r) volume the path is in, must be known
* @param path (r) absoule path
*
* @returns pointer to struct dir or NULL on error
*/
struct dir *dirlookup_bypath(const struct vol *vol, const char *path)
{
EC_INIT;
struct dir *dir = NULL;
cnid_t cnid, did;
bstring rpath = NULL;
bstring statpath = NULL;
struct bstrList *l = NULL;
struct stat st;
cnid = htonl(2);
dir = vol->v_root;
LOG(log_debug, logtype_afpd, "dirlookup_bypath(\"%s\")", path);
if (strcmp(vol->v_path, path) == 0)
return dir;
EC_NULL(rpath = rel_path_in_vol(path, vol->v_path)); /* 1. */
LOG(log_debug, logtype_afpd, "dirlookup_bypath: rpath: \"%s\"", cfrombstr(rpath));
EC_NULL(statpath = bfromcstr(vol->v_path)); /* 2. */
l = bsplit(rpath, '/');
for (int i = 0; i < l->qty ; i++) { /* 3. */
did = cnid;
EC_ZERO(bcatcstr(statpath, "/"));
EC_ZERO(bconcat(statpath, l->entry[i]));
LOG(log_debug, logtype_afpd, "dirlookup_bypath: statpath: \"%s\"", cfrombstr(statpath));
EC_ZERO_LOGSTR(lstat(cfrombstr(statpath), &st),
"lstat(rpath: %s, elem: %s): %s: %s",
cfrombstr(rpath), cfrombstr(l->entry[i]),
cfrombstr(statpath), strerror(errno));
if (!(S_ISDIR(st.st_mode))) /* 4. */
EC_FAIL;
if ((dir = dircache_search_by_name(vol, /* 5. */
dir,
cfrombstr(l->entry[i]),
blength(l->entry[i]))) == NULL) {
AFP_CNID_START("cnid_add");
cnid = cnid_add(vol->v_cdb, /* 6. */
&st,
did,
cfrombstr(l->entry[i]),
blength(l->entry[i]),
0);
AFP_CNID_DONE();
if (cnid == CNID_INVALID)
EC_FAIL;
if ((dir = dirlookup(vol, cnid)) == NULL) /* 7. */
EC_FAIL;
}
}
EC_CLEANUP:
bdestroy(rpath);
bstrListDestroy(l);
bdestroy(statpath);
if (ret != 0)
return NULL;
LOG(log_debug, logtype_afpd, "dirlookup_bypath: result: \"%s\"",
cfrombstr(dir->d_fullpath));
return dir;
}
/*!
* @brief Resolve a DID
*
* Resolve a DID, allocate a struct dir for it
* 1. Check for special CNIDs 0 (invalid), 1 and 2.
* 2a. Check if the DID is in the cache.
* 2b. Check if it's really a dir because we cache files too.
* 3. If it's not in the cache resolve it via the database.
* 4. Build complete server-side path to the dir.
* 5. Check if it exists and is a directory.
* 6. Create the struct dir and populate it.
* 7. Add it to the cache.
*
* @param vol (r) pointer to struct vol
* @param did (r) DID to resolve
*
* @returns pointer to struct dir
*/
struct dir *dirlookup(const struct vol *vol, cnid_t did)
{
static char buffer[12 + MAXPATHLEN + 1];
struct stat st;
struct dir *ret = NULL, *pdir;
bstring fullpath = NULL;
char *upath = NULL, *mpath;
cnid_t cnid, pdid;
size_t maxpath;
int buflen = 12 + MAXPATHLEN + 1;
int utf8;
int err = 0;
LOG(log_debug, logtype_afpd, "dirlookup(did: %u): START", ntohl(did));
/* check for did 0, 1 and 2 */
if (did == 0 || vol == NULL) { /* 1 */
afp_errno = AFPERR_PARAM;
ret = NULL;
goto exit;
} else if (did == DIRDID_ROOT_PARENT) {
rootParent.d_vid = vol->v_vid;
ret = &rootParent;
goto exit;
} else if (did == DIRDID_ROOT) {
ret = vol->v_root;
goto exit;
}
/* Search the cache */
if ((ret = dircache_search_by_did(vol, did)) != NULL) { /* 2a */
if (ret->d_flags & DIRF_ISFILE) { /* 2b */
afp_errno = AFPERR_BADTYPE;
ret = NULL;
goto exit;
}
if (lstat(cfrombstr(ret->d_fullpath), &st) != 0) {
LOG(log_debug, logtype_afpd, "dirlookup(did: %u, path: \"%s\"): lstat: %s",
ntohl(did), cfrombstr(ret->d_fullpath), strerror(errno));
switch (errno) {
case ENOENT:
case ENOTDIR:
/* It's not there anymore, so remove it */
LOG(log_debug, logtype_afpd, "dirlookup(did: %u): calling dir_remove", ntohl(did));
dir_remove(vol, ret);
afp_errno = AFPERR_NOOBJ;
ret = NULL;
goto exit;
default:
ret = ret;
goto exit;
}
/* DEADC0DE */
ret = NULL;
goto exit;
}
ret = ret;
goto exit;
}
utf8 = utf8_encoding(vol->v_obj);
maxpath = (utf8) ? MAXPATHLEN - 7 : 255;
/* Get it from the database */
cnid = did;
LOG(log_debug, logtype_afpd, "dirlookup(did: %u): querying CNID database", ntohl(did));
AFP_CNID_START("cnid_resolve");
upath = cnid_resolve(vol->v_cdb, &cnid, buffer, buflen);
AFP_CNID_DONE();
if (upath == NULL) {
afp_errno = AFPERR_NOOBJ;
err = 1;
goto exit;
}
if ((upath = strdup(upath)) == NULL) { /* 3 */
afp_errno = AFPERR_NOOBJ;
err = 1;
goto exit;
}
pdid = cnid;
/*
* Recurse up the tree, terminates in dirlookup when either
* - DIRDID_ROOT is hit
* - a cached entry is found
*/
LOG(log_debug, logtype_afpd, "dirlookup(did: %u): recursion for did: %u",
ntohl(did), ntohl(pdid));
if ((pdir = dirlookup(vol, pdid)) == NULL) {
err = 1;
goto exit;
}
/* build the fullpath */
if ((fullpath = bstrcpy(pdir->d_fullpath)) == NULL
|| bconchar(fullpath, '/') != BSTR_OK
|| bcatcstr(fullpath, upath) != BSTR_OK) {
err = 1;
goto exit;
}
/* stat it and check if it's a dir */
LOG(log_debug, logtype_afpd, "dirlookup(did: %u): stating \"%s\"",
ntohl(did), cfrombstr(fullpath));
if (ostat(cfrombstr(fullpath), &st, vol_syml_opt(vol)) != 0) { /* 5a */
switch (errno) {
case ENOENT:
afp_errno = AFPERR_NOOBJ;
err = 1;
goto exit;
case EPERM:
afp_errno = AFPERR_ACCESS;
err = 1;
goto exit;
default:
afp_errno = AFPERR_MISC;
err = 1;
goto exit;
}
} else {
if ( ! S_ISDIR(st.st_mode)) { /* 5b */
afp_errno = AFPERR_BADTYPE;
err = 1;
goto exit;
}
}
/* Get macname from unix name */
if ( (mpath = utompath(vol, upath, did, utf8)) == NULL ) {
afp_errno = AFPERR_NOOBJ;
err = 1;
goto exit;
}
/* Create struct dir */
if ((ret = dir_new(mpath, upath, vol, pdid, did, fullpath, &st)) == NULL) { /* 6 */
LOG(log_error, logtype_afpd, "dirlookup(did: %u) {%s, %s}: %s", ntohl(did), mpath, upath, strerror(errno));
err = 1;
goto exit;
}
/* Add it to the cache only if it's a dir */
if (dircache_add(vol, ret) != 0) { /* 7 */
err = 1;
goto exit;
}
exit:
if (upath) free(upath);
if (err) {
LOG(log_debug, logtype_afpd, "dirlookup(did: %u) {exit_error: %s}",
ntohl(did), AfpErr2name(afp_errno));
if (fullpath)
bdestroy(fullpath);
if (ret) {
dir_free(ret);
ret = NULL;
}
}
if (ret)
LOG(log_debug, logtype_afpd, "dirlookup(did: %u): RESULT: pdid: %u, path: \"%s\"",
ntohl(ret->d_did), ntohl(ret->d_pdid), cfrombstr(ret->d_fullpath));
return ret;
}
#define ENUMVETO "./../Network Trash Folder/TheVolumeSettingsFolder/TheFindByContentFolder/:2eDS_Store/Contents/Desktop Folder/Trash/Benutzer/"
/*!
* @brief Construct struct dir
*
* Construct struct dir from parameters.
*
* @param m_name (r) directory name in UTF8-dec
* @param u_name (r) directory name in server side encoding
* @param vol (r) pointer to struct vol
* @param pdid (r) Parent CNID
* @param did (r) CNID
* @param path (r) Full unix path to object
* @param st (r) struct stat of object
*
* @returns pointer to new struct dir or NULL on error
*
* @note Most of the time mac name and unix name are the same.
*/
struct dir *dir_new(const char *m_name,
const char *u_name,
const struct vol *vol,
cnid_t pdid,
cnid_t did,
bstring path,
struct stat *st)
{
struct dir *dir;
dir = (struct dir *) calloc(1, sizeof( struct dir ));
if (!dir)
return NULL;
if ((dir->d_m_name = bfromcstr(m_name)) == NULL) {
free(dir);
return NULL;
}
if (convert_string_allocate( (utf8_encoding(vol->v_obj)) ? CH_UTF8_MAC : vol->v_maccharset,
CH_UCS2,
m_name,
-1, (char **)&dir->d_m_name_ucs2) == (size_t)-1 ) {
LOG(log_error, logtype_afpd, "dir_new(did: %u) {%s, %s}: couldn't set UCS2 name", ntohl(did), m_name, u_name);
dir->d_m_name_ucs2 = NULL;
}
if (m_name == u_name || !strcmp(m_name, u_name)) {
dir->d_u_name = dir->d_m_name;
}
else if ((dir->d_u_name = bfromcstr(u_name)) == NULL) {
bdestroy(dir->d_m_name);
free(dir);
return NULL;
}
dir->d_did = did;
dir->d_pdid = pdid;
dir->d_vid = vol->v_vid;
dir->d_fullpath = path;
dir->dcache_ctime = st->st_ctime;
dir->dcache_ino = st->st_ino;
if (!S_ISDIR(st->st_mode))
dir->d_flags = DIRF_ISFILE;
dir->d_rights_cache = 0xffffffff;
return dir;
}
/*!
* @brief Free a struct dir and all its members
*
* @param (rw) pointer to struct dir
*/
void dir_free(struct dir *dir)
{
if (dir->d_u_name != dir->d_m_name) {
bdestroy(dir->d_u_name);
}
if (dir->d_m_name_ucs2)
free(dir->d_m_name_ucs2);
bdestroy(dir->d_m_name);
bdestroy(dir->d_fullpath);
free(dir);
}
/*!
* @brief Create struct dir from struct path
*
* Create a new struct dir from struct path. Then add it to the cache.
*
* 1. Open adouble file, get CNID from it.
* 2. Search the database, hinting with the CNID from (1).
* 3. Build fullpath and create struct dir.
* 4. Add it to the cache.
*
* @param vol (r) pointer to struct vol, possibly modified in callee
* @param dir (r) pointer to parrent directory
* @param path (rw) pointer to struct path with valid path->u_name
* @param len (r) strlen of path->u_name
*
* @returns Pointer to new struct dir or NULL on error.
*
* @note Function also assigns path->m_name from path->u_name.
*/
struct dir *dir_add(struct vol *vol, const struct dir *dir, struct path *path, int len)
{
int err = 0;
struct dir *cdir = NULL;
cnid_t id;
struct adouble ad;
struct adouble *adp = NULL;
bstring fullpath = NULL;
AFP_ASSERT(vol);
AFP_ASSERT(dir);
AFP_ASSERT(path);
AFP_ASSERT(len > 0);
if ((cdir = dircache_search_by_name(vol, dir, path->u_name, strlen(path->u_name))) != NULL) {
/* there's a stray entry in the dircache */
LOG(log_debug, logtype_afpd, "dir_add(did:%u,'%s/%s'): {stray cache entry: did:%u,'%s', removing}",
ntohl(dir->d_did), cfrombstr(dir->d_fullpath), path->u_name,
ntohl(cdir->d_did), cfrombstr(dir->d_fullpath));
if (dir_remove(vol, cdir) != 0) {
dircache_dump();
AFP_PANIC("dir_add");
}
}
/* get_id needs adp for reading CNID from adouble file */
ad_init(&ad, vol);
if ((ad_open(&ad, path->u_name, ADFLAGS_HF | ADFLAGS_DIR | ADFLAGS_RDONLY)) == 0) /* 1 */
adp = &ad;
/* Get CNID */
if ((id = get_id(vol, adp, &path->st, dir->d_did, path->u_name, len)) == 0) { /* 2 */
err = 1;
goto exit;
}
if (adp)
ad_close(adp, ADFLAGS_HF);
/* Get macname from unixname */
if (path->m_name == NULL) {
if ((path->m_name = utompath(vol, path->u_name, id, utf8_encoding(vol->v_obj))) == NULL) {
LOG(log_error, logtype_afpd, "dir_add(\"%s\"): can't assign macname", path->u_name);
err = 2;
goto exit;
}
}
/* Build fullpath */
if ( ((fullpath = bstrcpy(dir->d_fullpath)) == NULL) /* 3 */
|| (bconchar(fullpath, '/') != BSTR_OK)
|| (bcatcstr(fullpath, path->u_name)) != BSTR_OK) {
LOG(log_error, logtype_afpd, "dir_add: fullpath: %s", strerror(errno) );
err = 3;
goto exit;
}
/* Allocate and initialize struct dir */
if ((cdir = dir_new(path->m_name,
path->u_name,
vol,
dir->d_did,
id,
fullpath,
&path->st)) == NULL) { /* 3 */
err = 4;
goto exit;
}
if ((dircache_add(vol, cdir)) != 0) { /* 4 */
LOG(log_error, logtype_afpd, "dir_add: fatal dircache error: %s", cfrombstr(fullpath));
exit(EXITERR_SYS);
}
exit:
if (err != 0) {
LOG(log_debug, logtype_afpd, "dir_add('%s/%s'): error: %u",
cfrombstr(dir->d_u_name), path->u_name, err);
if (adp)
ad_close(adp, ADFLAGS_HF);
if (!cdir && fullpath)
bdestroy(fullpath);
if (cdir)
dir_free(cdir);
cdir = NULL;
} else {
/* no error */
LOG(log_debug, logtype_afpd, "dir_add(did:%u,'%s/%s'): {cached: %u,'%s'}",
ntohl(dir->d_did), cfrombstr(dir->d_fullpath), path->u_name,
ntohl(cdir->d_did), cfrombstr(cdir->d_fullpath));
}
return(cdir);
}
/*!
* Free the queue with invalid struct dirs
*
* This gets called at the end of every AFP func.
*/
void dir_free_invalid_q(void)
{
struct dir *dir;
while ((dir = (struct dir *)dequeue(invalid_dircache_entries)))
dir_free(dir);
}
/*!
* @brief Remove a dir from a cache and queue it for freeing
*
* 1. Check if the dir is locked or has opened forks
* 2. Remove it from the cache
* 3. Queue it for removal
* 4. If it's a request to remove curdir, mark curdir as invalid
* 5. Mark it as invalid
*
* @param (r) pointer to struct vol
* @param (rw) pointer to struct dir
*/
int dir_remove(const struct vol *vol, struct dir *dir)
{
AFP_ASSERT(vol);
AFP_ASSERT(dir);
if (dir->d_did == DIRDID_ROOT_PARENT || dir->d_did == DIRDID_ROOT)
return 0;
LOG(log_debug, logtype_afpd, "dir_remove(did:%u,'%s'): {removing}",
ntohl(dir->d_did), cfrombstr(dir->d_u_name));
dircache_remove(vol, dir, DIRCACHE | DIDNAME_INDEX | QUEUE_INDEX); /* 2 */
enqueue(invalid_dircache_entries, dir); /* 3 */
if (curdir == dir) /* 4 */
curdir = NULL;
dir->d_did = CNID_INVALID; /* 5 */
return 0;
}
#if 0 /* unused */
/*!
* @brief Modify a struct dir, adjust cache
*
* Any value that is 0 or NULL is not changed. If new_uname is NULL it is set to new_mname.
* If given new_uname == new_mname, new_uname will point to new_mname.
*
* @param vol (r) pointer to struct vol
* @param dir (rw) pointer to struct dir
* @param pdid (r) new parent DID
* @param did (r) new DID
* @param new_mname (r) new mac-name
* @param new_uname (r) new unix-name
* @param pdir_fullpath (r) new fullpath of parent dir
*/
int dir_modify(const struct vol *vol,
struct dir *dir,
cnid_t pdid,
cnid_t did,
const char *new_mname,
const char *new_uname,
bstring pdir_fullpath)
{
int ret = 0;
/* Remove it from the cache */
dircache_remove(vol, dir, DIRCACHE | DIDNAME_INDEX | QUEUE_INDEX);
if (pdid)
dir->d_pdid = pdid;
if (did)
dir->d_did = did;
if (new_mname) {
/* free uname if it's not the same as mname */
if (dir->d_m_name != dir->d_u_name)
bdestroy(dir->d_u_name);
if (new_uname == NULL)
new_uname = new_mname;
/* assign new name */
if ((bassigncstr(dir->d_m_name, new_mname)) != BSTR_OK) {
LOG(log_error, logtype_afpd, "dir_modify: bassigncstr: %s", strerror(errno) );
return -1;
}
if (new_mname == new_uname || (strcmp(new_mname, new_uname) == 0)) {
dir->d_u_name = dir->d_m_name;
} else {
if ((dir->d_u_name = bfromcstr(new_uname)) == NULL) {
LOG(log_error, logtype_afpd, "dir_modify: bassigncstr: %s", strerror(errno) );
return -1;
}
}
}
if (pdir_fullpath) {
if (bassign(dir->d_fullpath, pdir_fullpath) != BSTR_OK)
return -1;
if (bcatcstr(dir->d_fullpath, "/") != BSTR_OK)
return -1;
if (bcatcstr(dir->d_fullpath, new_uname) != BSTR_OK)
return -1;
}
if (dir->d_m_name_ucs2)
free(dir->d_m_name_ucs2);
if ((size_t)-1 == convert_string_allocate((utf8_encoding())?CH_UTF8_MAC:vol->v_maccharset, CH_UCS2, dir->d_m_name, -1, (char**)&dir->d_m_name_ucs2))
dir->d_m_name_ucs2 = NULL;
/* Re-add it to the cache */
if ((dircache_add(vol, dir)) != 0) {
dircache_dump();
AFP_PANIC("dir_modify");
}
return ret;
}
#endif
/*!
* @brief Resolve a catalog node name path
*
* 1. Evaluate path type
* 2. Move to start dir, if we can't, it might be e.g. because of EACCES, build
* path from dirname, so e.g. getdirparams has sth it can chew on. curdir
* is dir parent then. All this is done in path_from_dir().
* 3. Parse next cnode name in path, cases:
* 4. single "\0" -> do nothing
* 5. two or more consecutive "\0" -> chdir("..") one or more times
* 6. cnode name -> copy it to path.m_name
* 7. Get unix name from mac name
* 8. Special handling of request with did 1
* 9. stat the cnode name
* 10. If it's not there, it's probably an afp_createfile|dir,
* return with curdir = dir parent, struct path = dirname
* 11. If it's there and it's a file, it must should be the last element of the requested
* path. Return with curdir = cnode name parent dir, struct path = filename
* 12. Treat symlinks like files, don't follow them
* 13. If it's a dir:
* 14. Search the dircache for it
* 15. If it's not in the cache, create a struct dir for it and add it to the cache
* 16. chdir into the dir and
* 17. set m_name to the mac equivalent of "."
* 18. goto 3
*/
struct path *cname(struct vol *vol, struct dir *dir, char **cpath)
{
static char path[ MAXPATHLEN + 1];
static struct path ret;
struct dir *cdir;
char *data, *p;
int len;
uint32_t hint;
uint16_t len16;
int size = 0;
int toUTF8 = 0;
LOG(log_maxdebug, logtype_afpd, "cname('%s'): {start}", cfrombstr(dir->d_fullpath));
data = *cpath;
afp_errno = AFPERR_NOOBJ;
memset(&ret, 0, sizeof(ret));
switch (ret.m_type = *data) { /* 1 */
case 2:
data++;
len = (unsigned char) *data++;
size = 2;
if (vol->v_obj->afp_version >= 30) {
ret.m_type = 3;
toUTF8 = 1;
}
break;
case 3:
if (vol->v_obj->afp_version >= 30) {
data++;
memcpy(&hint, data, sizeof(hint));
hint = ntohl(hint);
data += sizeof(hint);
memcpy(&len16, data, sizeof(len16));
len = ntohs(len16);
data += 2;
size = 7;
break;
}
/* else it's an error */
default:
afp_errno = AFPERR_PARAM;
return( NULL );
}
*cpath += len + size;
path[0] = 0;
ret.m_name = path;
if (movecwd(vol, dir) < 0 ) {
LOG(log_debug, logtype_afpd, "cname(did:%u): failed to chdir to '%s'",
ntohl(dir->d_did), cfrombstr(dir->d_fullpath));
if (len == 0)
return path_from_dir(vol, dir, &ret);
else
return NULL;
}
while (len) { /* 3 */
if (*data == 0) { /* 4 or 5 */
data++;
len--;
while (len > 0 && *data == 0) { /* 5 */
/* chdir to parrent dir */
if ((dir = dirlookup(vol, dir->d_pdid)) == NULL)
return NULL;
if (movecwd( vol, dir ) < 0 ) {
dir_remove(vol, dir);
return NULL;
}
data++;
len--;
}
continue;
}
/* 6*/
for ( p = path; *data != 0 && len > 0; len-- ) {
*p++ = *data++;
if (p > &path[UTF8FILELEN_EARLY]) { /* FIXME safeguard, limit of early Mac OS X */
afp_errno = AFPERR_PARAM;
return NULL;
}
}
*p = 0; /* Terminate string */
ret.u_name = NULL;
if (cname_mtouname(vol, dir, &ret, toUTF8) != 0) { /* 7 */
LOG(log_error, logtype_afpd, "cname('%s'): error from cname_mtouname", path);
return NULL;
}
LOG(log_maxdebug, logtype_afpd, "came('%s'): {node: '%s}", cfrombstr(dir->d_fullpath), ret.u_name);
/* Prevent access to our special folders like .AppleDouble */
if (check_name(vol, ret.u_name)) {
/* the name is illegal */
LOG(log_info, logtype_afpd, "cname: illegal path: '%s'", ret.u_name);
afp_errno = AFPERR_PARAM;
if (vol->v_obj->options.flags & OPTION_VETOMSG) {
bstring message = bformat("Attempt to access vetoed file or directory \"%s\" in directory \"%s\"",
ret.u_name, bdata(dir->d_u_name));
if (setmessage(bdata(message)) == 0)
/* Client may make multiple attempts, only send the message the first time */
kill(getpid(), SIGUSR2);
bdestroy(message);
}
return NULL;
}
if (dir->d_did == DIRDID_ROOT_PARENT) { /* 8 */
/*
* Special case: CNID 1
* root parent (did 1) has one child: the volume. Requests for did=1 with
* some <name> must check against the volume name.
*/
if ((strcmp(cfrombstr(vol->v_root->d_m_name), ret.m_name)) == 0)
cdir = vol->v_root;
else
return NULL;
} else {
/*
* CNID != 1, e.g. most of the times we take this way.
* Now check if current path-part is a file or dir:
* o if it's dir we have to step into it
* o if it's a file we expect it to be the last part of the requested path
* and thus call continue which should terminate the while loop because
* len = 0. Ok?
*/
if (of_stat(vol, &ret) != 0) { /* 9 */
/*
* ret.u_name doesn't exist, might be afp_createfile|dir
* that means it should have been the last part
*/
if (len > 0) {
/* it wasn't the last part, so we have a bogus path request */
afp_errno = AFPERR_NOOBJ;
return NULL;
}
/*
* this will terminate clean in while (1) because len == 0,
* probably afp_createfile|dir
*/
LOG(log_maxdebug, logtype_afpd, "came('%s'): {leave-cnode ENOENT (possile create request): '%s'}",
cfrombstr(dir->d_fullpath), ret.u_name);
continue; /* 10 */
}
switch (ret.st.st_mode & S_IFMT) {
case S_IFREG: /* 11 */
LOG(log_debug, logtype_afpd, "came('%s'): {file: '%s'}",
cfrombstr(dir->d_fullpath), ret.u_name);
if (len > 0) {
/* it wasn't the last part, so we have a bogus path request */
afp_errno = AFPERR_PARAM;
return NULL;
}
continue; /* continues while loop */
case S_IFLNK: /* 12 */
LOG(log_debug, logtype_afpd, "came('%s'): {link: '%s'}",
cfrombstr(dir->d_fullpath), ret.u_name);
if (len > 0) {
LOG(log_warning, logtype_afpd, "came('%s'): {symlinked dir: '%s'}",
cfrombstr(dir->d_fullpath), ret.u_name);
afp_errno = AFPERR_PARAM;
return NULL;
}
continue; /* continues while loop */
case S_IFDIR: /* 13 */
break;
default:
LOG(log_info, logtype_afpd, "cname: special file: '%s'", ret.u_name);
afp_errno = AFPERR_NODIR;
return NULL;
}
/* Search the cache */
int unamelen = strlen(ret.u_name);
cdir = dircache_search_by_name(vol, dir, ret.u_name, unamelen); /* 14 */
if (cdir == NULL) {
/* Not in cache, create one */
if ((cdir = dir_add(vol, dir, &ret, unamelen)) == NULL) { /* 15 */
LOG(log_error, logtype_afpd, "cname(did:%u, name:'%s', cwd:'%s'): failed to add dir",
ntohl(dir->d_did), ret.u_name, getcwdpath());
return NULL;
}
}
} /* if/else cnid==1 */
/* Now chdir to the evaluated dir */
if (movecwd( vol, cdir ) < 0 ) { /* 16 */
LOG(log_debug, logtype_afpd, "cname(cwd:'%s'): failed to chdir to new subdir '%s': %s",
cfrombstr(curdir->d_fullpath), cfrombstr(cdir->d_fullpath), strerror(errno));
if (len == 0)
return path_from_dir(vol, cdir, &ret);
else
return NULL;
}
dir = cdir;
ret.m_name[0] = 0; /* 17, so we later know last token was a dir */
} /* while (len) */
if (curdir->d_did == DIRDID_ROOT_PARENT) {
afp_errno = AFPERR_DID1;
return NULL;
}
if (ret.m_name[0] == 0) {
/* Last part was a dir */
ret.u_name = mtoupath(vol, ret.m_name, 0, 1); /* Force "." into a useable static buffer */
ret.d_dir = dir;
}
LOG(log_debug, logtype_afpd, "cname('%s') {end: curdir:'%s', path:'%s'}",
cfrombstr(dir->d_fullpath),
cfrombstr(curdir->d_fullpath),
ret.u_name);
return &ret;
}
/*
* @brief chdir() to dir
*
* @param vol (r) pointer to struct vol
* @param dir (r) pointer to struct dir
*
* @returns 0 on success, -1 on error with afp_errno set appropriately
*/
int movecwd(const struct vol *vol, struct dir *dir)
{
int ret;
AFP_ASSERT(vol);
AFP_ASSERT(dir);
LOG(log_maxdebug, logtype_afpd, "movecwd: from: curdir:\"%s\", cwd:\"%s\"",
curdir ? cfrombstr(curdir->d_fullpath) : "INVALID", getcwdpath());
if (dir->d_did == DIRDID_ROOT_PARENT) {
curdir = &rootParent;
return 0;
}
LOG(log_debug, logtype_afpd, "movecwd(to: did: %u, \"%s\")",
ntohl(dir->d_did), cfrombstr(dir->d_fullpath));
if ((ret = ochdir(cfrombstr(dir->d_fullpath), vol_syml_opt(vol))) != 0 ) {
LOG(log_debug, logtype_afpd, "movecwd(\"%s\"): %s",
cfrombstr(dir->d_fullpath), strerror(errno));
if (ret == 1) {
/* p is a symlink or getcwd failed */
afp_errno = AFPERR_BADTYPE;
if (chdir(vol->v_path ) < 0) {
LOG(log_error, logtype_afpd, "can't chdir back'%s': %s", vol->v_path, strerror(errno));
/* XXX what do we do here? */
}
curdir = vol->v_root;
return -1;
}
switch (errno) {
case EACCES:
case EPERM:
afp_errno = AFPERR_ACCESS;
break;
default:
afp_errno = AFPERR_NOOBJ;
}
return( -1 );
}
curdir = dir;
return( 0 );
}
/*
* We can't use unix file's perm to support Apple's inherited protection modes.
* If we aren't the file's owner we can't change its perms when moving it and smb
* nfs,... don't even try.
*/
int check_access(const AFPObj *obj, struct vol *vol, char *path, int mode)
{
struct maccess ma;
char *p;
p = ad_dir(path);
if (!p)
return -1;
accessmode(obj, vol, p, &ma, curdir, NULL);
if ((mode & OPENACC_WR) && !(ma.ma_user & AR_UWRITE))
return -1;
if ((mode & OPENACC_RD) && !(ma.ma_user & AR_UREAD))
return -1;
return 0;
}
/* --------------------- */
int file_access(const AFPObj *obj, struct vol *vol, struct path *path, int mode)
{
struct maccess ma;
accessmode(obj, vol, path->u_name, &ma, curdir, &path->st);
LOG(log_debug, logtype_afpd, "file_access(\"%s\"): mapped user mode: 0x%02x",
path->u_name, ma.ma_user);
if ((mode & OPENACC_WR) && !(ma.ma_user & AR_UWRITE)) {
LOG(log_debug, logtype_afpd, "file_access(\"%s\"): write access denied", path->u_name);
return -1;
}
if ((mode & OPENACC_RD) && !(ma.ma_user & AR_UREAD)) {
LOG(log_debug, logtype_afpd, "file_access(\"%s\"): read access denied", path->u_name);
return -1;
}
return 0;
}
/* --------------------- */
void setdiroffcnt(struct dir *dir, struct stat *st, uint32_t count)
{
dir->d_offcnt = count;
dir->d_ctime = st->st_ctime;
dir->d_flags &= ~DIRF_CNID;
}
/* ---------------------
* is our cached also for reenumerate id?
*/
int dirreenumerate(struct dir *dir, struct stat *st)
{
return st->st_ctime == dir->d_ctime && (dir->d_flags & DIRF_CNID);
}
/* ------------------------------
(".", curdir)
(name, dir) with curdir:name == dir, from afp_enumerate
*/
int getdirparams(const AFPObj *obj,
const struct vol *vol,
uint16_t bitmap, struct path *s_path,
struct dir *dir,
char *buf, size_t *buflen )
{
struct maccess ma;
struct adouble ad;
char *data, *l_nameoff = NULL, *utf_nameoff = NULL;
int bit = 0, isad = 0;
uint32_t aint;
uint16_t ashort;
int ret;
uint32_t utf8 = 0;
cnid_t pdid;
struct stat *st = &s_path->st;
char *upath = s_path->u_name;
if ((bitmap & ((1 << DIRPBIT_ATTR) |
(1 << DIRPBIT_CDATE) |
(1 << DIRPBIT_MDATE) |
(1 << DIRPBIT_BDATE) |
(1 << DIRPBIT_FINFO)))) {
ad_init(&ad, vol);
if ( !ad_metadata( upath, ADFLAGS_DIR, &ad) ) {
isad = 1;
if (ad.ad_mdp->adf_flags & O_CREAT) {
/* We just created it */
if (s_path->m_name == NULL) {
if ((s_path->m_name = utompath(vol,
upath,
dir->d_did,
utf8_encoding(obj))) == NULL) {
LOG(log_error, logtype_afpd,
"getdirparams(\"%s\"): can't assign macname",
cfrombstr(dir->d_fullpath));
return AFPERR_MISC;
}
}
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_pdid,
vol->v_stamp);
ad_flush( &ad);
}
}
}
pdid = dir->d_pdid;
data = buf;
while ( bitmap != 0 ) {
while (( bitmap & 1 ) == 0 ) {
bitmap = bitmap>>1;
bit++;
}
switch ( bit ) {
case DIRPBIT_ATTR :
if ( isad ) {
ad_getattr(&ad, &ashort);
} else if (invisible_dots(vol, cfrombstr(dir->d_u_name))) {
ashort = htons(ATTRBIT_INVISIBLE);
} else
ashort = 0;
ashort &= ~htons(vol->v_ignattr);
memcpy( data, &ashort, sizeof( ashort ));
data += sizeof( ashort );
break;
case DIRPBIT_PDID :
memcpy( data, &pdid, sizeof( pdid ));
data += sizeof( pdid );
LOG(log_debug, logtype_afpd, "metadata('%s'): Parent DID: %u",
s_path->u_name, ntohl(pdid));
break;
case DIRPBIT_CDATE :
if (!isad || (ad_getdate(&ad, AD_DATE_CREATE, &aint) < 0))
aint = AD_DATE_FROM_UNIX(st->st_mtime);
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
break;
case DIRPBIT_MDATE :
aint = AD_DATE_FROM_UNIX(st->st_mtime);
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
break;
case DIRPBIT_BDATE :
if (!isad || (ad_getdate(&ad, AD_DATE_BACKUP, &aint) < 0))
aint = AD_DATE_START;
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
break;
case DIRPBIT_FINFO :
if ( isad ) {
memcpy( data, ad_entry( &ad, ADEID_FINDERI ), 32 );
} else { /* no appledouble */
memset( data, 0, 32 );
/* dot files are by default visible */
if (invisible_dots(vol, cfrombstr(dir->d_u_name))) {
ashort = htons(FINDERINFO_INVISIBLE);
memcpy(data + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
}
}
data += 32;
break;
case DIRPBIT_LNAME :
if (dir->d_m_name) /* root of parent can have a null name */
l_nameoff = data;
else
memset(data, 0, sizeof(uint16_t));
data += sizeof( uint16_t );
break;
case DIRPBIT_SNAME :
memset(data, 0, sizeof(uint16_t));
data += sizeof( uint16_t );
break;
case DIRPBIT_DID :
memcpy( data, &dir->d_did, sizeof( aint ));
data += sizeof( aint );
LOG(log_debug, logtype_afpd, "metadata('%s'): DID: %u",
s_path->u_name, ntohl(dir->d_did));
break;
case DIRPBIT_OFFCNT :
ashort = 0;
/* this needs to handle current directory access rights */
if (diroffcnt(dir, st)) {
ashort = (dir->d_offcnt > 0xffff)?0xffff:dir->d_offcnt;
}
else if ((ret = for_each_dirent(vol, upath, NULL,NULL)) >= 0) {
setdiroffcnt(dir, st, ret);
ashort = (dir->d_offcnt > 0xffff)?0xffff:dir->d_offcnt;
}
ashort = htons( ashort );
memcpy( data, &ashort, sizeof( ashort ));
data += sizeof( ashort );
break;
case DIRPBIT_UID :
aint = htonl(st->st_uid);
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
break;
case DIRPBIT_GID :
aint = htonl(st->st_gid);
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
break;
case DIRPBIT_ACCESS :
accessmode(obj, vol, upath, &ma, dir , st);
*data++ = ma.ma_user;
*data++ = ma.ma_world;
*data++ = ma.ma_group;
*data++ = ma.ma_owner;
break;
/* Client has requested the ProDOS information block.
Just pass back the same basic block for all
directories. <shirsch@ibm.net> */
case DIRPBIT_PDINFO :
if (obj->afp_version >= 30) { /* UTF8 name */
utf8 = kTextEncodingUTF8;
if (dir->d_m_name) /* root of parent can have a null name */
utf_nameoff = data;
else
memset(data, 0, sizeof(uint16_t));
data += sizeof( uint16_t );
aint = 0;
memcpy(data, &aint, sizeof( aint ));
data += sizeof( aint );
}
else { /* ProDOS Info Block */
*data++ = 0x0f;
*data++ = 0;
ashort = htons( 0x0200 );
memcpy( data, &ashort, sizeof( ashort ));
data += sizeof( ashort );
memset( data, 0, sizeof( ashort ));
data += sizeof( ashort );
}
break;
case DIRPBIT_UNIXPR :
/* accessmode may change st_mode with ACLs */
accessmode(obj, vol, upath, &ma, dir, st);
aint = htonl(st->st_uid);
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
aint = htonl(st->st_gid);
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
aint = st->st_mode;
aint = htonl ( aint & ~S_ISGID ); /* Remove SGID, OSX doesn't like it ... */
memcpy( data, &aint, sizeof( aint ));
data += sizeof( aint );
*data++ = ma.ma_user;
*data++ = ma.ma_world;
*data++ = ma.ma_group;
*data++ = ma.ma_owner;
break;
default :
if ( isad ) {
ad_close(&ad, ADFLAGS_HF);
}
return( AFPERR_BITMAP );
}
bitmap = bitmap>>1;
bit++;
}
if ( l_nameoff ) {
ashort = htons( data - buf );
memcpy( l_nameoff, &ashort, sizeof( ashort ));
data = set_name(vol, data, pdid, cfrombstr(dir->d_m_name), dir->d_did, 0);
}
if ( utf_nameoff ) {
ashort = htons( data - buf );
memcpy( utf_nameoff, &ashort, sizeof( ashort ));
data = set_name(vol, data, pdid, cfrombstr(dir->d_m_name), dir->d_did, utf8);
}
if ( isad ) {
ad_close(&ad, ADFLAGS_HF);
}
*buflen = data - buf;
return( AFP_OK );
}
/* ----------------------------- */
int path_error(struct path *path, int error)
{
/* - a dir with access error
* - no error it's a file
* - file not found
*/
if (path_isadir(path))
return afp_errno;
if (path->st_valid && path->st_errno)
return error;
return AFPERR_BADTYPE ;
}
/* ----------------------------- */
int afp_setdirparams(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
struct vol *vol;
struct dir *dir;
struct path *path;
uint16_t vid, bitmap;
uint32_t did;
int rc;
*rbuflen = 0;
ibuf += 2;
memcpy( &vid, ibuf, sizeof( vid ));
ibuf += sizeof( vid );
if (NULL == ( vol = getvolbyvid( vid )) ) {
return( AFPERR_PARAM );
}
if (vol->v_flags & AFPVOL_RO)
return AFPERR_VLOCK;
memcpy( &did, ibuf, sizeof( did ));
ibuf += sizeof( int );
if (NULL == ( dir = dirlookup( vol, did )) ) {
return afp_errno;
}
memcpy( &bitmap, ibuf, sizeof( bitmap ));
bitmap = ntohs( bitmap );
ibuf += sizeof( bitmap );
if (NULL == ( path = cname( vol, dir, &ibuf )) ) {
return get_afp_errno(AFPERR_NOOBJ);
}
if ( *path->m_name != '\0' ) {
rc = path_error(path, AFPERR_NOOBJ);
/* maybe we are trying to set perms back */
if (rc != AFPERR_ACCESS)
return rc;
}
/*
* If ibuf is odd, make it even.
*/
if ((u_long)ibuf & 1 ) {
ibuf++;
}
if (AFP_OK == ( rc = setdirparams(vol, path, bitmap, ibuf )) ) {
setvoltime(obj, vol );
}
return( rc );
}
/*
* assume path == '\0' e.g. it's a directory in canonical form
*/
int setdirparams(struct vol *vol, struct path *path, uint16_t d_bitmap, char *buf )
{
struct maccess ma;
struct adouble ad;
struct utimbuf ut;
struct timeval tv;
char *upath;
struct dir *dir;
int bit, isad = 0;
int cdate, bdate;
int owner, group;
uint16_t ashort, bshort, oshort;
int err = AFP_OK;
int change_mdate = 0;
int change_parent_mdate = 0;
int newdate = 0;
uint16_t bitmap = d_bitmap;
u_char finder_buf[32];
uint32_t upriv;
mode_t mpriv = 0;
bool set_upriv = false, set_maccess = false;
LOG(log_debug, logtype_afpd, "setdirparams(\"%s\", bitmap: %02x)", path->u_name, bitmap);
bit = 0;
upath = path->u_name;
dir = path->d_dir;
while ( bitmap != 0 ) {
while (( bitmap & 1 ) == 0 ) {
bitmap = bitmap>>1;
bit++;
}
switch( bit ) {
case DIRPBIT_ATTR :
change_mdate = 1;
memcpy( &ashort, buf, sizeof( ashort ));
buf += sizeof( ashort );
break;
case DIRPBIT_CDATE :
change_mdate = 1;
memcpy(&cdate, buf, sizeof(cdate));
buf += sizeof( cdate );
break;
case DIRPBIT_MDATE :
memcpy(&newdate, buf, sizeof(newdate));
buf += sizeof( newdate );
break;
case DIRPBIT_BDATE :
change_mdate = 1;
memcpy(&bdate, buf, sizeof(bdate));
buf += sizeof( bdate );
break;
case DIRPBIT_FINFO :
change_mdate = 1;
memcpy( finder_buf, buf, 32 );
buf += 32;
break;
case DIRPBIT_UID : /* What kind of loser mounts as root? */
memcpy( &owner, buf, sizeof(owner));
buf += sizeof( owner );
break;
case DIRPBIT_GID :
memcpy( &group, buf, sizeof( group ));
buf += sizeof( group );
break;
case DIRPBIT_ACCESS :
set_maccess = true;
change_mdate = 1;
ma.ma_user = *buf++;
ma.ma_world = *buf++;
ma.ma_group = *buf++;
ma.ma_owner = *buf++;
mpriv = mtoumode( &ma ) | vol->v_dperm;
break;
/* Ignore what the client thinks we should do to the
ProDOS information block. Skip over the data and
report nothing amiss. <shirsch@ibm.net> */
case DIRPBIT_PDINFO :
if (vol->v_obj->afp_version < 30) {
buf += 6;
}
else {
err = AFPERR_BITMAP;
bitmap = 0;
}
break;
case DIRPBIT_UNIXPR :
if (vol_unix_priv(vol)) {
set_upriv = true;
memcpy( &owner, buf, sizeof(owner)); /* FIXME need to change owner too? */
buf += sizeof( owner );
memcpy( &group, buf, sizeof( group ));
buf += sizeof( group );
change_mdate = 1;
memcpy( &upriv, buf, sizeof( upriv ));
buf += sizeof( upriv );
upriv = ntohl (upriv) | vol->v_dperm;
break;
}
/* fall through */
default :
err = AFPERR_BITMAP;
bitmap = 0;
break;
}
bitmap = bitmap>>1;
bit++;
}
if (d_bitmap & ((1<<DIRPBIT_ATTR) | (1<<DIRPBIT_CDATE) | (1<<DIRPBIT_BDATE) | (1<<DIRPBIT_FINFO))) {
ad_init(&ad, vol);
if (ad_open(&ad, upath, ADFLAGS_HF | ADFLAGS_DIR | ADFLAGS_CREATE | ADFLAGS_RDWR, 0777) != 0) {
LOG(log_debug, logtype_afpd, "setdirparams(\"%s\", bitmap: %02x): need adouble", path->u_name, d_bitmap);
return AFPERR_ACCESS;
}
if ((ad_get_MD_flags(&ad) & O_CREAT)) {
ad_setname(&ad, cfrombstr(curdir->d_m_name));
}
isad = 1;
}
bit = 0;
bitmap = d_bitmap;
while ( bitmap != 0 ) {
while (( bitmap & 1 ) == 0 ) {
bitmap = bitmap>>1;
bit++;
}
switch( bit ) {
case DIRPBIT_ATTR :
if (isad) {
ad_getattr(&ad, &bshort);
oshort = bshort;
if ( ntohs( ashort ) & ATTRBIT_SETCLR ) {
ashort &= ~htons(vol->v_ignattr);
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;
case DIRPBIT_CDATE :
if (isad) {
ad_setdate(&ad, AD_DATE_CREATE, cdate);
}
break;
case DIRPBIT_MDATE :
break;
case DIRPBIT_BDATE :
if (isad) {
ad_setdate(&ad, AD_DATE_BACKUP, bdate);
}
break;
case DIRPBIT_FINFO :
if (isad) {
/* Fixes #2802236 */
uint16_t fflags;
memcpy(&fflags, finder_buf + FINDERINFO_FRFLAGOFF, sizeof(uint16_t));
fflags &= htons(~FINDERINFO_ISHARED);
memcpy(finder_buf + FINDERINFO_FRFLAGOFF, &fflags, sizeof(uint16_t));
/* #2802236 end */
if ( dir->d_did == DIRDID_ROOT ) {
/*
* Alright, we admit it, this is *really* sick!
* The 4 bytes that we don't copy, when we're dealing
* with the root of a volume, are the directory's
* location information. This eliminates that annoying
* behavior one sees when mounting above another mount
* point.
*/
memcpy( ad_entry( &ad, ADEID_FINDERI ), finder_buf, 10 );
memcpy( ad_entry( &ad, ADEID_FINDERI ) + 14, finder_buf + 14, 18 );
} else {
memcpy( ad_entry( &ad, ADEID_FINDERI ), finder_buf, 32 );
}
}
break;
case DIRPBIT_UID : /* What kind of loser mounts as root? */
if ( (dir->d_did == DIRDID_ROOT) &&
(setdeskowner(vol, ntohl(owner), -1 ) < 0)) {
err = set_dir_errors(path, "setdeskowner", errno);
if (isad && err == AFPERR_PARAM) {
err = AFP_OK; /* ???*/
}
else {
goto setdirparam_done;
}
}
if ( setdirowner(vol, upath, ntohl(owner), -1 ) < 0 ) {
err = set_dir_errors(path, "setdirowner", errno);
goto setdirparam_done;
}
break;
case DIRPBIT_GID :
if (dir->d_did == DIRDID_ROOT)
setdeskowner(vol, -1, ntohl(group) );
if ( setdirowner(vol, upath, -1, ntohl(group) ) < 0 ) {
err = set_dir_errors(path, "setdirowner", errno);
goto setdirparam_done;
}
break;
case DIRPBIT_ACCESS :
break;
case DIRPBIT_PDINFO :
if (vol->v_obj->afp_version >= 30) {
err = AFPERR_BITMAP;
goto setdirparam_done;
}
break;
case DIRPBIT_UNIXPR :
if (!vol_unix_priv(vol)) {
err = AFPERR_BITMAP;
goto setdirparam_done;
}
break;
default :
err = AFPERR_BITMAP;
goto setdirparam_done;
break;
}
bitmap = bitmap>>1;
bit++;
}
setdirparam_done:
if (change_mdate && newdate == 0 && gettimeofday(&tv, NULL) == 0) {
newdate = AD_DATE_FROM_UNIX(tv.tv_sec);
}
if (newdate) {
if (isad)
ad_setdate(&ad, AD_DATE_MODIFY, newdate);
ut.actime = ut.modtime = AD_DATE_TO_UNIX(newdate);
utime(upath, &ut);
}
if (isad) {
if (path->st_valid && !path->st_errno) {
struct stat *st = &path->st;
if (dir && dir->d_pdid) {
ad_setid(&ad, st->st_dev, st->st_ino, dir->d_did, dir->d_pdid, vol->v_stamp);
}
}
if (ad_flush(&ad) != 0) {
switch (errno) {
case EACCES:
err = AFPERR_ACCESS;
break;
default:
err = AFPERR_MISC;
break;
}
}
ad_close(&ad, ADFLAGS_HF);
}
if (err == AFP_OK) {
if (set_maccess == true) {
if (dir->d_did == DIRDID_ROOT) {
setdeskmode(vol, mpriv);
if (!dir_rx_set(mpriv)) {
/* we can't remove read and search for owner on volume root */
err = AFPERR_ACCESS;
goto setprivdone;
}
}
if (setdirunixmode(vol, upath, mpriv) < 0) {
LOG(log_info, logtype_afpd, "setdirparams(\"%s\"): setdirunixmode: %s",
fullpathname(upath), strerror(errno));
err = set_dir_errors(path, "setdirmode", errno);
}
}
if ((set_upriv == true) && vol_unix_priv(vol)) {
if (dir->d_did == DIRDID_ROOT) {
if (!dir_rx_set(upriv)) {
/* we can't remove read and search for owner on volume root */
err = AFPERR_ACCESS;
goto setprivdone;
}
setdeskowner(vol, -1, ntohl(group));
setdeskmode(vol, upriv);
}
if (setdirowner(vol, upath, -1, ntohl(group)) < 0) {
LOG(log_info, logtype_afpd, "setdirparams(\"%s\"): setdirowner: %s",
fullpathname(upath), strerror(errno));
err = set_dir_errors(path, "setdirowner", errno);
goto setprivdone;
}
if (setdirunixmode(vol, upath, upriv) < 0) {
LOG(log_info, logtype_afpd, "setdirparams(\"%s\"): setdirunixmode: %s",
fullpathname(upath), strerror(errno));
err = set_dir_errors(path, "setdirunixmode", errno);
}
}
}
setprivdone:
if (change_parent_mdate && dir->d_did != DIRDID_ROOT
&& gettimeofday(&tv, NULL) == 0) {
if (movecwd(vol, dirlookup(vol, dir->d_pdid)) == 0) {
newdate = AD_DATE_FROM_UNIX(tv.tv_sec);
/* be careful with bitmap because now dir is null */
bitmap = 1<<DIRPBIT_MDATE;
setdirparams(vol, &Cur_Path, bitmap, (char *)&newdate);
/* should we reset curdir ?*/
}
}
return err;
}
int afp_syncdir(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
#ifdef HAVE_DIRFD
DIR *dp;
#endif
int dfd;
struct vol *vol;
struct dir *dir;
uint32_t did;
uint16_t vid;
*rbuflen = 0;
ibuf += 2;
memcpy( &vid, ibuf, sizeof( vid ));
ibuf += sizeof( vid );
if (NULL == (vol = getvolbyvid( vid )) ) {
return( AFPERR_PARAM );
}
memcpy( &did, ibuf, sizeof( did ));
ibuf += sizeof( did );
/*
* Here's the deal:
* if it's CNID 2 our only choice to meet the specs is call sync.
* For any other CNID just sync that dir. To my knowledge the
* intended use of FPSyncDir is to sync the volume so all we're
* ever going to see here is probably CNID 2. Anyway, we' prepared.
*/
if ( ntohl(did) == 2 ) {
sync();
} else {
if (NULL == ( dir = dirlookup( vol, did )) ) {
return afp_errno; /* was AFPERR_NOOBJ */
}
if (movecwd( vol, dir ) < 0 )
return ( AFPERR_NOOBJ );
/*
* Assuming only OSens that have dirfd also may require fsyncing directories
* in order to flush metadata e.g. Linux.
*/
#ifdef HAVE_DIRFD
if (NULL == ( dp = opendir( "." )) ) {
switch( errno ) {
case ENOENT :
return( AFPERR_NOOBJ );
case EACCES :
return( AFPERR_ACCESS );
default :
return( AFPERR_PARAM );
}
}
LOG(log_debug, logtype_afpd, "afp_syncdir: dir: '%s'", dir->d_u_name);
dfd = dirfd( dp );
if ( fsync ( dfd ) < 0 )
LOG(log_error, logtype_afpd, "afp_syncdir(%s): %s",
dir->d_u_name, strerror(errno) );
closedir(dp); /* closes dfd too */
#endif
if ( -1 == (dfd = open(vol->ad_path(".", ADFLAGS_DIR), O_RDWR))) {
switch( errno ) {
case ENOENT:
return( AFPERR_NOOBJ );
case EACCES:
return( AFPERR_ACCESS );
default:
return( AFPERR_PARAM );
}
}
LOG(log_debug, logtype_afpd, "afp_syncdir: ad-file: '%s'",
vol->ad_path(".", ADFLAGS_DIR) );
if ( fsync(dfd) < 0 )
LOG(log_error, logtype_afpd, "afp_syncdir(%s): %s",
vol->ad_path(cfrombstr(dir->d_u_name), ADFLAGS_DIR), strerror(errno) );
close(dfd);
}
return ( AFP_OK );
}
int afp_createdir(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
struct adouble ad;
struct vol *vol;
struct dir *dir;
char *upath;
struct path *s_path;
uint32_t did;
uint16_t vid;
int err;
*rbuflen = 0;
ibuf += 2;
memcpy( &vid, ibuf, sizeof( vid ));
ibuf += sizeof( vid );
if (NULL == ( vol = getvolbyvid( vid )) ) {
return( AFPERR_PARAM );
}
if (vol->v_flags & AFPVOL_RO)
return AFPERR_VLOCK;
memcpy( &did, ibuf, sizeof( did ));
ibuf += sizeof( did );
if (NULL == ( dir = dirlookup( vol, did )) ) {
return afp_errno; /* was AFPERR_NOOBJ */
}
/* for concurrent access we need to be sure we are not in the
* folder we want to create...
*/
movecwd(vol, dir);
if (NULL == ( s_path = cname( vol, dir, &ibuf )) ) {
return get_afp_errno(AFPERR_PARAM);
}
/* cname was able to move curdir to it! */
if (*s_path->m_name == '\0')
return AFPERR_EXIST;
upath = s_path->u_name;
if (AFP_OK != (err = netatalk_mkdir(vol, upath))) {
return err;
}
if (of_stat(vol, s_path) < 0) {
return AFPERR_MISC;
}
curdir->d_offcnt++;
if ((dir = dir_add(vol, curdir, s_path, strlen(s_path->u_name))) == NULL) {
return AFPERR_MISC;
}
if ( movecwd( vol, dir ) < 0 ) {
return( AFPERR_PARAM );
}
ad_init(&ad, vol);
if (ad_open(&ad, ".", ADFLAGS_HF | ADFLAGS_DIR | ADFLAGS_CREATE | ADFLAGS_RDWR, 0777) < 0) {
return( AFPERR_ACCESS );
}
ad_setname(&ad, s_path->m_name);
ad_setid( &ad, s_path->st.st_dev, s_path->st.st_ino, dir->d_did, did, vol->v_stamp);
fce_register(obj, FCE_DIR_CREATE, bdata(curdir->d_fullpath), NULL);
ad_flush(&ad);
ad_close(&ad, ADFLAGS_HF);
memcpy( rbuf, &dir->d_did, sizeof( uint32_t ));
*rbuflen = sizeof( uint32_t );
setvoltime(obj, vol );
return( AFP_OK );
}
/*
* 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(struct vol *vol,
int dirfd,
char *src,
char *dst,
struct dir *dir,
struct dir *newparent,
char *newname)
{
struct adouble ad;
int err;
/* existence check moved to afp_moveandrename */
if ( unix_rename(dirfd, src, -1, dst ) < 0 ) {
switch ( errno ) {
case ENOENT :
return( AFPERR_NOOBJ );
case EACCES :
return( AFPERR_ACCESS );
case EROFS:
return AFPERR_VLOCK;
case EINVAL:
/* tried to move directory into a subdirectory of itself */
return AFPERR_CANTMOVE;
case EXDEV:
/* this needs to copy and delete. bleah. that means we have
* to deal with entire directory hierarchies. */
if ((err = copydir(vol, newparent, dirfd, src, dst)) < 0) {
deletedir(vol, -1, dst);
return err;
}
if ((err = deletedir(vol, dirfd, src)) < 0)
return err;
break;
default :
return( AFPERR_PARAM );
}
}
vol->vfs->vfs_renamedir(vol, dirfd, src, dst);
ad_init(&ad, vol);
if (ad_open(&ad, dst, ADFLAGS_HF | ADFLAGS_DIR | ADFLAGS_RDWR) == 0) {
ad_setname(&ad, newname);
ad_flush(&ad);
ad_close(&ad, ADFLAGS_HF);
}
return( AFP_OK );
}
/* delete an empty directory */
int deletecurdir(struct vol *vol)
{
struct dirent *de;
struct stat st;
struct dir *fdir, *pdir;
struct adouble ad;
uint16_t ashort;
int err;
if ((pdir = dirlookup(vol, curdir->d_pdid)) == NULL) {
return( AFPERR_ACCESS );
}
fdir = curdir;
ad_init(&ad, vol);
/* we never want to create a resource fork here, we are going to delete it */
if ( ad_metadata( ".", ADFLAGS_DIR, &ad) == 0 ) {
ad_getattr(&ad, &ashort);
ad_close(&ad, ADFLAGS_HF);
if (!(vol->v_ignattr & ATTRBIT_NODELETE) && (ashort & htons(ATTRBIT_NODELETE))) {
return AFPERR_OLOCK;
}
}
err = vol->vfs->vfs_deletecurdir(vol);
if (err) {
LOG(log_error, logtype_afpd, "deletecurdir: error deleting AppleDouble files in \"%s\"",
cfrombstr(curdir->d_fullpath));
return err;
}
if (movecwd(vol, pdir) < 0) {
err = afp_errno;
goto delete_done;
}
LOG(log_debug, logtype_afpd, "deletecurdir: moved to \"%s\"",
cfrombstr(curdir->d_fullpath));
err = netatalk_rmdir_all_errors(-1, cfrombstr(fdir->d_u_name));
switch (err) {
case AFP_OK:
case AFPERR_NOOBJ:
break;
case AFPERR_DIRNEMPT:
if (delete_vetoed_files(vol, bdata(fdir->d_u_name), false) != 0)
goto delete_done;
err = AFP_OK;
break;
default:
LOG(log_error, logtype_afpd, "deletecurdir(\"%s\"): netatalk_rmdir_all_errors error",
cfrombstr(curdir->d_fullpath));
goto delete_done;
}
AFP_CNID_START("cnid_delete");
cnid_delete(vol->v_cdb, fdir->d_did);
AFP_CNID_DONE();
dir_remove( vol, fdir );
delete_done:
return err;
}
int afp_mapid(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
struct passwd *pw;
struct group *gr;
char *name;
uint32_t id;
int len, sfunc;
int utf8 = 0;
ibuf++;
sfunc = (unsigned char) *ibuf++;
*rbuflen = 0;
if (sfunc >= 3 && sfunc <= 6) {
if (obj->afp_version < 30) {
return( AFPERR_PARAM );
}
utf8 = 1;
}
switch ( sfunc ) {
case 1 :
case 3 :/* unicode */
memcpy( &id, ibuf, sizeof( id ));
id = ntohl(id);
if ( id != 0 ) {
if (( pw = getpwuid( id )) == NULL ) {
return( AFPERR_NOITEM );
}
len = convert_string_allocate( obj->options.unixcharset, ((!utf8)?obj->options.maccharset:CH_UTF8_MAC),
pw->pw_name, -1, &name);
} else {
len = 0;
name = NULL;
}
break;
case 2 :
case 4 : /* unicode */
memcpy( &id, ibuf, sizeof( id ));
id = ntohl(id);
if ( id != 0 ) {
if (NULL == ( gr = (struct group *)getgrgid( id ))) {
return( AFPERR_NOITEM );
}
len = convert_string_allocate( obj->options.unixcharset, (!utf8)?obj->options.maccharset:CH_UTF8_MAC,
gr->gr_name, -1, &name);
} else {
len = 0;
name = NULL;
}
break;
case 5 : /* UUID -> username */
case 6 : /* UUID -> groupname */
if ((obj->afp_version < 32) || !(obj->options.flags & OPTION_UUID ))
return AFPERR_PARAM;
LOG(log_debug, logtype_afpd, "afp_mapid: valid UUID request");
uuidtype_t type;
len = getnamefromuuid((unsigned char*) ibuf, &name, &type);
if (len != 0) /* its a error code, not len */
return AFPERR_NOITEM;
switch (type) {
case UUID_USER:
if (( pw = getpwnam( name )) == NULL )
return( AFPERR_NOITEM );
LOG(log_debug, logtype_afpd, "afp_mapid: name:%s -> uid:%d", name, pw->pw_uid);
id = htonl(UUID_USER);
memcpy( rbuf, &id, sizeof( id ));
id = htonl( pw->pw_uid);
rbuf += sizeof( id );
memcpy( rbuf, &id, sizeof( id ));
rbuf += sizeof( id );
*rbuflen = 2 * sizeof( id );
break;
case UUID_GROUP:
if (( gr = getgrnam( name )) == NULL )
return( AFPERR_NOITEM );
LOG(log_debug, logtype_afpd, "afp_mapid: group:%s -> gid:%d", name, gr->gr_gid);
id = htonl(UUID_GROUP);
memcpy( rbuf, &id, sizeof( id ));
rbuf += sizeof( id );
id = htonl( gr->gr_gid);
memcpy( rbuf, &id, sizeof( id ));
rbuf += sizeof( id );
*rbuflen = 2 * sizeof( id );
break;
default:
return AFPERR_MISC;
}
break;
default :
return( AFPERR_PARAM );
}
if (name)
len = strlen( name );
if (utf8) {
uint16_t tp = htons(len);
memcpy(rbuf, &tp, sizeof(tp));
rbuf += sizeof(tp);
*rbuflen += 2;
}
else {
*rbuf++ = len;
*rbuflen += 1;
}
if ( len > 0 ) {
memcpy( rbuf, name, len );
}
*rbuflen += len;
if (name)
free(name);
return( AFP_OK );
}
int afp_mapname(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
struct passwd *pw;
struct group *gr;
int len, sfunc;
uint32_t id;
uint16_t ulen;
ibuf++;
sfunc = (unsigned char) *ibuf++;
*rbuflen = 0;
LOG(log_debug, logtype_afpd, "afp_mapname: sfunc: %d", sfunc);
switch ( sfunc ) {
case 1 :
case 2 : /* unicode */
if (obj->afp_version < 30) {
return( AFPERR_PARAM );
}
memcpy(&ulen, ibuf, sizeof(ulen));
len = ntohs(ulen);
ibuf += 2;
LOG(log_debug, logtype_afpd, "afp_mapname: alive");
break;
case 3 :
case 4 :
len = (unsigned char) *ibuf++;
break;
case 5 : /* username -> UUID */
case 6 : /* groupname -> UUID */
if ((obj->afp_version < 32) || !(obj->options.flags & OPTION_UUID ))
return AFPERR_PARAM;
memcpy(&ulen, ibuf, sizeof(ulen));
len = ntohs(ulen);
ibuf += 2;
break;
default :
return( AFPERR_PARAM );
}
ibuf[ len ] = '\0';
if ( len == 0 )
return AFPERR_PARAM;
else {
switch ( sfunc ) {
case 1 : /* unicode */
case 3 :
if (NULL == ( pw = (struct passwd *)getpwnam( ibuf )) ) {
return( AFPERR_NOITEM );
}
id = pw->pw_uid;
id = htonl(id);
memcpy( rbuf, &id, sizeof( id ));
*rbuflen = sizeof( id );
break;
case 2 : /* unicode */
case 4 :
LOG(log_debug, logtype_afpd, "afp_mapname: getgrnam for name: %s",ibuf);
if (NULL == ( gr = (struct group *)getgrnam( ibuf ))) {
return( AFPERR_NOITEM );
}
id = gr->gr_gid;
LOG(log_debug, logtype_afpd, "afp_mapname: getgrnam for name: %s -> id: %d",ibuf, id);
id = htonl(id);
memcpy( rbuf, &id, sizeof( id ));
*rbuflen = sizeof( id );
break;
case 5 : /* username -> UUID */
LOG(log_debug, logtype_afpd, "afp_mapname: name: %s",ibuf);
if (0 != getuuidfromname(ibuf, UUID_USER, (unsigned char *)rbuf))
return AFPERR_NOITEM;
*rbuflen = UUID_BINSIZE;
break;
case 6 : /* groupname -> UUID */
LOG(log_debug, logtype_afpd, "afp_mapname: name: %s",ibuf);
if (0 != getuuidfromname(ibuf, UUID_GROUP, (unsigned char *)rbuf))
return AFPERR_NOITEM;
*rbuflen = UUID_BINSIZE;
break;
}
}
return( AFP_OK );
}
/* ------------------------------------
variable DID support
*/
int afp_closedir(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
#if 0
struct vol *vol;
struct dir *dir;
uint16_t vid;
uint32_t did;
#endif /* 0 */
*rbuflen = 0;
/* do nothing as dids are static for the life of the process. */
#if 0
ibuf += 2;
memcpy(&vid, ibuf, sizeof( vid ));
ibuf += sizeof( vid );
if (( vol = getvolbyvid( vid )) == NULL ) {
return( AFPERR_PARAM );
}
memcpy( &did, ibuf, sizeof( did ));
ibuf += sizeof( did );
if (( dir = dirlookup( vol, did )) == NULL ) {
return( AFPERR_PARAM );
}
/* dir_remove -- deletedid */
#endif /* 0 */
return AFP_OK;
}
/* did creation gets done automatically
* there's a pb again with case but move it to cname
*/
int afp_opendir(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
struct vol *vol;
struct dir *parentdir;
struct path *path;
uint32_t did;
uint16_t vid;
*rbuflen = 0;
ibuf += 2;
memcpy(&vid, ibuf, sizeof(vid));
ibuf += sizeof( vid );
if (NULL == ( vol = getvolbyvid( vid )) ) {
return( AFPERR_PARAM );
}
memcpy(&did, ibuf, sizeof(did));
ibuf += sizeof(did);
if (NULL == ( parentdir = dirlookup( vol, did )) ) {
return afp_errno;
}
if (NULL == ( path = cname( vol, parentdir, &ibuf )) ) {
return get_afp_errno(AFPERR_PARAM);
}
if ( *path->m_name != '\0' ) {
return path_error(path, AFPERR_NOOBJ);
}
if ( !path->st_valid && of_stat(vol, path) < 0 ) {
return( AFPERR_NOOBJ );
}
if ( path->st_errno ) {
return( AFPERR_NOOBJ );
}
memcpy(rbuf, &curdir->d_did, sizeof(curdir->d_did));
*rbuflen = sizeof(curdir->d_did);
return AFP_OK;
}
|