BOOL cli_resolve_path( const char *mountpt,
struct cli_state *rootcli,
const char *path,
struct cli_state **targetcli,
pstring targetpath)
{
CLIENT_DFS_REFERRAL *refs = NULL;
size_t num_refs;
uint16 consumed;
struct cli_state *cli_ipc;
pstring dfs_path, cleanpath, extrapath;
int pathlen;
fstring server, share;
struct cli_state *newcli;
pstring newpath;
pstring newmount;
char *ppath, *temppath = NULL;
SMB_STRUCT_STAT sbuf;
uint32 attributes;
if ( !rootcli || !path || !targetcli ) {
return False;
}
/* Don't do anything if this is not a DFS root. */
if ( !rootcli->dfsroot) {
*targetcli = rootcli;
pstrcpy( targetpath, path );
return True;
}
*targetcli = NULL;
/* Send a trans2_query_path_info to check for a referral. */
clean_path(path, cleanpath);
cli_dfs_make_full_path(rootcli, cleanpath, dfs_path );
if (cli_qpathinfo_basic( rootcli, dfs_path, &sbuf, &attributes ) ) {
/* This is an ordinary path, just return it. */
*targetcli = rootcli;
pstrcpy( targetpath, path );
goto done;
}
/* Special case where client asked for a path that does not exist */
if ( cli_dfs_check_error(rootcli, NT_STATUS_OBJECT_NAME_NOT_FOUND) ) {
*targetcli = rootcli;
pstrcpy( targetpath, path );
goto done;
}
/* We got an error, check for DFS referral. */
if ( !cli_dfs_check_error(rootcli, NT_STATUS_PATH_NOT_COVERED)) {
return False;
}
/* Check for the referral. */
if ( !(cli_ipc = cli_cm_open( rootcli->desthost, "IPC$", False )) ) {
return False;
}
if ( !cli_dfs_get_referral(cli_ipc, dfs_path, &refs, &num_refs, &consumed)
|| !num_refs ) {
return False;
}
/* Just store the first referral for now. */
split_dfs_path( refs[0].dfspath, server, share, extrapath );
SAFE_FREE(refs);
/* Make sure to recreate the original string including any wildcards. */
cli_dfs_make_full_path( rootcli, path, dfs_path);
pathlen = strlen( dfs_path )*2;
consumed = MIN(pathlen, consumed );
pstrcpy( targetpath, &dfs_path[consumed/2] );
dfs_path[consumed/2] = '\0';
/*
* targetpath is now the unconsumed part of the path.
* dfs_path is now the consumed part of the path (in \server\share\path format).
*/
/* Open the connection to the target server & share */
if ( (*targetcli = cli_cm_open(server, share, False)) == NULL ) {
d_printf("Unable to follow dfs referral [\\%s\\%s]\n",
server, share );
return False;
}
if (strlen(extrapath) > 0) {
string_append(&temppath, extrapath);
string_append(&temppath, targetpath);
pstrcpy( targetpath, temppath );
}
/* parse out the consumed mount path */
/* trim off the \server\share\ */
ppath = dfs_path;
if (*ppath != '\\') {
d_printf("cli_resolve_path: dfs_path (%s) not in correct format.\n",
dfs_path );
return False;
}
ppath++; /* Now pointing at start of server name. */
if ((ppath = strchr_m( dfs_path, '\\' )) == NULL) {
return False;
}
ppath++; /* Now pointing at start of share name. */
if ((ppath = strchr_m( ppath+1, '\\' )) == NULL) {
return False;
}
ppath++; /* Now pointing at path component. */
pstr_sprintf( newmount, "%s\\%s", mountpt, ppath );
cli_cm_set_mntpoint( *targetcli, newmount );
/* Check for another dfs referral, note that we are not
checking for loops here. */
if ( !strequal( targetpath, "\\" ) && !strequal( targetpath, "/")) {
if ( cli_resolve_path( newmount, *targetcli, targetpath, &newcli, newpath ) ) {
/*
* When cli_resolve_path returns true here it's always
* returning the complete path in newpath, so we're done
* here.
*/
*targetcli = newcli;
pstrcpy( targetpath, newpath );
return True;
}
}
done:
/* If returning True ensure we return a dfs root full path. */
if ( (*targetcli)->dfsroot ) {
pstrcpy(dfs_path, targetpath );
cli_dfs_make_full_path( *targetcli, dfs_path, targetpath);
}
return True;
}
SMBCFILE *
SMBC_open_ctx(SMBCCTX *context,
const char *fname,
int flags,
mode_t mode)
{
char *server = NULL;
char *share = NULL;
char *user = NULL;
char *password = NULL;
char *workgroup = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
SMBCSRV *srv = NULL;
SMBCFILE *file = NULL;
uint16_t fd;
uint16_t port = 0;
NTSTATUS status = NT_STATUS_OBJECT_PATH_INVALID;
TALLOC_CTX *frame = talloc_stackframe();
if (!context || !context->internal->initialized) {
errno = EINVAL; /* Best I can think of ... */
TALLOC_FREE(frame);
return NULL;
}
if (!fname) {
errno = EINVAL;
TALLOC_FREE(frame);
return NULL;
}
if (SMBC_parse_path(frame,
context,
fname,
&workgroup,
&server,
&port,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return NULL;
}
if (!user || user[0] == (char)0) {
user = talloc_strdup(frame, smbc_getUser(context));
if (!user) {
errno = ENOMEM;
TALLOC_FREE(frame);
return NULL;
}
}
srv = SMBC_server(frame, context, True,
server, port, share, &workgroup, &user, &password);
if (!srv) {
if (errno == EPERM) errno = EACCES;
TALLOC_FREE(frame);
return NULL; /* SMBC_server sets errno */
}
/* Hmmm, the test for a directory is suspect here ... FIXME */
if (strlen(path) > 0 && path[strlen(path) - 1] == '\\') {
status = NT_STATUS_OBJECT_PATH_INVALID;
} else {
file = SMB_MALLOC_P(SMBCFILE);
if (!file) {
errno = ENOMEM;
TALLOC_FREE(frame);
return NULL;
}
ZERO_STRUCTP(file);
/*d_printf(">>>open: resolving %s\n", path);*/
status = cli_resolve_path(
frame, "", context->internal->auth_info,
srv->cli, path, &targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
SAFE_FREE(file);
TALLOC_FREE(frame);
return NULL;
}
/*d_printf(">>>open: resolved %s as %s\n", path, targetpath);*/
status = cli_open(targetcli, targetpath, flags,
context->internal->share_mode, &fd);
if (!NT_STATUS_IS_OK(status)) {
/* Handle the error ... */
SAFE_FREE(file);
errno = SMBC_errno(context, targetcli);
TALLOC_FREE(frame);
return NULL;
}
/* Fill in file struct */
file->cli_fd = fd;
file->fname = SMB_STRDUP(fname);
file->srv = srv;
file->offset = 0;
file->file = True;
/*
* targetcli is either equal to srv->cli or
* is a subsidiary DFS connection. Either way
* file->cli_fd belongs to it so we must cache
* it for read/write/close, not re-resolve each time.
* Re-resolving is both slow and incorrect.
*/
file->targetcli = targetcli;
DLIST_ADD(context->internal->files, file);
/*
* If the file was opened in O_APPEND mode, all write
* operations should be appended to the file. To do that,
* though, using this protocol, would require a getattrE()
* call for each and every write, to determine where the end
* of the file is. (There does not appear to be an append flag
* in the protocol.) Rather than add all of that overhead of
* retrieving the current end-of-file offset prior to each
* write operation, we'll assume that most append operations
* will continuously write, so we'll just set the offset to
* the end of the file now and hope that's adequate.
*
* Note to self: If this proves inadequate, and O_APPEND
* should, in some cases, be forced for each write, add a
* field in the context options structure, for
* "strict_append_mode" which would select between the current
* behavior (if FALSE) or issuing a getattrE() prior to each
* write and forcing the write to the end of the file (if
* TRUE). Adding that capability will likely require adding
* an "append" flag into the _SMBCFILE structure to track
* whether a file was opened in O_APPEND mode. -- djl
*/
if (flags & O_APPEND) {
if (SMBC_lseek_ctx(context, file, 0, SEEK_END) < 0) {
(void) SMBC_close_ctx(context, file);
errno = ENXIO;
TALLOC_FREE(frame);
return NULL;
}
}
TALLOC_FREE(frame);
return file;
}
/* Check if opendir needed ... */
if (!NT_STATUS_IS_OK(status)) {
int eno = 0;
eno = SMBC_errno(context, srv->cli);
file = smbc_getFunctionOpendir(context)(context, fname);
if (!file) errno = eno;
TALLOC_FREE(frame);
return file;
}
errno = EINVAL; /* FIXME, correct errno ? */
TALLOC_FREE(frame);
return NULL;
}
/*
* Get info from an SMB server on a file. Use a qpathinfo call first
* and if that fails, use getatr, as Win95 sometimes refuses qpathinfo
*/
bool
SMBC_getatr(SMBCCTX * context,
SMBCSRV *srv,
const char *path,
uint16_t *mode,
off_t *size,
struct timespec *create_time_ts,
struct timespec *access_time_ts,
struct timespec *write_time_ts,
struct timespec *change_time_ts,
SMB_INO_T *ino)
{
char *fixedpath = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
time_t write_time;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return False;
}
/* path fixup for . and .. */
if (strequal(path, ".") || strequal(path, "..")) {
fixedpath = talloc_strdup(frame, "\\");
if (!fixedpath) {
errno = ENOMEM;
TALLOC_FREE(frame);
return False;
}
} else {
fixedpath = talloc_strdup(frame, path);
if (!fixedpath) {
errno = ENOMEM;
TALLOC_FREE(frame);
return False;
}
trim_string(fixedpath, NULL, "\\..");
trim_string(fixedpath, NULL, "\\.");
}
DEBUG(4,("SMBC_getatr: sending qpathinfo\n"));
status = cli_resolve_path(frame, "", context->internal->auth_info,
srv->cli, fixedpath,
&targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Couldn't resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return False;
}
if (!srv->no_pathinfo2 &&
NT_STATUS_IS_OK(cli_qpathinfo2(targetcli, targetpath,
create_time_ts,
access_time_ts,
write_time_ts,
change_time_ts,
size, mode, ino))) {
TALLOC_FREE(frame);
return True;
}
srv->no_pathinfo2 = True;
if (!srv->no_pathinfo3 &&
NT_STATUS_IS_OK(cli_qpathinfo3(targetcli, targetpath,
create_time_ts,
access_time_ts,
write_time_ts,
change_time_ts,
size, mode, ino))) {
TALLOC_FREE(frame);
return True;
}
srv->no_pathinfo3 = True;
/* if this is NT then don't bother with the getatr */
if (smb1cli_conn_capabilities(targetcli->conn) & CAP_NT_SMBS) {
goto all_failed;
}
if (NT_STATUS_IS_OK(cli_getatr(targetcli, targetpath, mode, size, &write_time))) {
struct timespec w_time_ts;
w_time_ts = convert_time_t_to_timespec(write_time);
if (write_time_ts != NULL) {
*write_time_ts = w_time_ts;
}
if (create_time_ts != NULL) {
*create_time_ts = w_time_ts;
}
if (access_time_ts != NULL) {
*access_time_ts = w_time_ts;
}
if (change_time_ts != NULL) {
*change_time_ts = w_time_ts;
}
if (ino) {
*ino = 0;
}
TALLOC_FREE(frame);
return True;
}
all_failed:
srv->no_pathinfo2 = False;
srv->no_pathinfo3 = False;
errno = EPERM;
TALLOC_FREE(frame);
return False;
}
int
SMBC_ftruncate_ctx(SMBCCTX *context,
SMBCFILE *file,
off_t length)
{
off_t size = length;
char *server = NULL;
char *share = NULL;
char *user = NULL;
char *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
if (!file || !SMBC_dlist_contains(context->internal->files, file)) {
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
if (!file->file) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>fstat: parsing %s\n", file->fname);*/
if (SMBC_parse_path(frame,
context,
file->fname,
NULL,
&server,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>fstat: resolving %s\n", path);*/
status = cli_resolve_path(frame, "", context->internal->auth_info,
file->srv->cli, path,
&targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>fstat: resolved path as %s\n", targetpath);*/
if (!NT_STATUS_IS_OK(cli_ftruncate(targetcli, file->cli_fd, (uint64_t)size))) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
TALLOC_FREE(frame);
return 0;
}
int
SMBC_fstat_ctx(SMBCCTX *context,
SMBCFILE *file,
struct stat *st)
{
struct timespec change_time_ts;
struct timespec access_time_ts;
struct timespec write_time_ts;
SMB_OFF_T size;
uint16 mode;
char *server = NULL;
char *share = NULL;
char *user = NULL;
char *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
SMB_INO_T ino = 0;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
if (!file || !SMBC_dlist_contains(context->internal->files, file)) {
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
if (!file->file) {
TALLOC_FREE(frame);
return smbc_getFunctionFstatdir(context)(context, file, st);
}
/*d_printf(">>>fstat: parsing %s\n", file->fname);*/
if (SMBC_parse_path(frame,
context,
file->fname,
NULL,
&server,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>fstat: resolving %s\n", path);*/
status = cli_resolve_path(frame, "", context->internal->auth_info,
file->srv->cli, path,
&targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>fstat: resolved path as %s\n", targetpath);*/
if (!NT_STATUS_IS_OK(cli_qfileinfo_basic(
targetcli, file->cli_fd, &mode, &size,
NULL,
&access_time_ts,
&write_time_ts,
&change_time_ts,
&ino))) {
time_t change_time, access_time, write_time;
if (!NT_STATUS_IS_OK(cli_getattrE(targetcli, file->cli_fd, &mode, &size,
&change_time, &access_time, &write_time))) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
change_time_ts = convert_time_t_to_timespec(change_time);
access_time_ts = convert_time_t_to_timespec(access_time);
write_time_ts = convert_time_t_to_timespec(write_time);
}
st->st_ino = ino;
setup_stat(context, st, file->fname, size, mode);
st->st_atime = convert_timespec_to_time_t(access_time_ts);
st->st_ctime = convert_timespec_to_time_t(change_time_ts);
st->st_mtime = convert_timespec_to_time_t(write_time_ts);
st->st_dev = file->srv->dev;
TALLOC_FREE(frame);
return 0;
}
int
SMBC_close_ctx(SMBCCTX *context,
SMBCFILE *file)
{
SMBCSRV *srv;
char *server = NULL, *share = NULL, *user = NULL, *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
if (!file || !SMBC_dlist_contains(context->internal->files, file)) {
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
/* IS a dir ... */
if (!file->file) {
TALLOC_FREE(frame);
return smbc_getFunctionClosedir(context)(context, file);
}
/*d_printf(">>>close: parsing %s\n", file->fname);*/
if (SMBC_parse_path(frame,
context,
file->fname,
NULL,
&server,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>close: resolving %s\n", path);*/
status = cli_resolve_path(frame, "", context->internal->auth_info,
file->srv->cli, path,
&targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>close: resolved path as %s\n", targetpath);*/
if (!NT_STATUS_IS_OK(cli_close(targetcli, file->cli_fd))) {
DEBUG(3, ("cli_close failed on %s. purging server.\n",
file->fname));
/* Deallocate slot and remove the server
* from the server cache if unused */
errno = SMBC_errno(context, targetcli);
srv = file->srv;
DLIST_REMOVE(context->internal->files, file);
SAFE_FREE(file->fname);
SAFE_FREE(file);
smbc_getFunctionRemoveUnusedServer(context)(context, srv);
TALLOC_FREE(frame);
return -1;
}
DLIST_REMOVE(context->internal->files, file);
SAFE_FREE(file->fname);
SAFE_FREE(file);
TALLOC_FREE(frame);
return 0;
}
off_t
SMBC_lseek_ctx(SMBCCTX *context,
SMBCFILE *file,
off_t offset,
int whence)
{
off_t size;
char *server = NULL, *share = NULL, *user = NULL, *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
if (!file || !SMBC_dlist_contains(context->internal->files, file)) {
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
if (!file->file) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1; /* Can't lseek a dir ... */
}
switch (whence) {
case SEEK_SET:
file->offset = offset;
break;
case SEEK_CUR:
file->offset += offset;
break;
case SEEK_END:
/*d_printf(">>>lseek: parsing %s\n", file->fname);*/
if (SMBC_parse_path(frame,
context,
file->fname,
NULL,
&server,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>lseek: resolving %s\n", path);*/
status = cli_resolve_path(
frame, "", context->internal->auth_info,
file->srv->cli, path, &targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>lseek: resolved path as %s\n", targetpath);*/
if (!NT_STATUS_IS_OK(cli_qfileinfo_basic(
targetcli, file->cli_fd, NULL,
&size, NULL, NULL, NULL, NULL,
NULL))) {
off_t b_size = size;
if (!NT_STATUS_IS_OK(cli_getattrE(targetcli, file->cli_fd,
NULL, &b_size, NULL, NULL, NULL))) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
} else
size = b_size;
}
file->offset = size + offset;
break;
default:
errno = EINVAL;
break;
}
TALLOC_FREE(frame);
return file->offset;
}
ssize_t
SMBC_write_ctx(SMBCCTX *context,
SMBCFILE *file,
const void *buf,
size_t count)
{
off_t offset;
char *server = NULL, *share = NULL, *user = NULL, *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
/* First check all pointers before dereferencing them */
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
if (!file || !SMBC_dlist_contains(context->internal->files, file)) {
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
/* Check that the buffer exists ... */
if (buf == NULL) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
offset = file->offset; /* See "offset" comment in SMBC_read_ctx() */
/*d_printf(">>>write: parsing %s\n", file->fname);*/
if (SMBC_parse_path(frame,
context,
file->fname,
NULL,
&server,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>write: resolving %s\n", path);*/
status = cli_resolve_path(frame, "", context->internal->auth_info,
file->srv->cli, path,
&targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>write: resolved path as %s\n", targetpath);*/
status = cli_writeall(targetcli, file->cli_fd,
0, (const uint8_t *)buf, offset, count, NULL);
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
TALLOC_FREE(frame);
return -1;
}
file->offset += count;
TALLOC_FREE(frame);
return count; /* Success, 0 bytes of data ... */
}
ssize_t
SMBC_read_ctx(SMBCCTX *context,
SMBCFILE *file,
void *buf,
size_t count)
{
size_t ret;
char *server = NULL, *share = NULL, *user = NULL, *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *targetcli = NULL;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
/*
* offset:
*
* Compiler bug (possibly) -- gcc (GCC) 3.3.5 (Debian 1:3.3.5-2) --
* appears to pass file->offset (which is type off_t) differently than
* a local variable of type off_t. Using local variable "offset" in
* the call to cli_read() instead of file->offset fixes a problem
* retrieving data at an offset greater than 4GB.
*/
off_t offset;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
DEBUG(4, ("smbc_read(%p, %d)\n", file, (int)count));
if (!file || !SMBC_dlist_contains(context->internal->files, file)) {
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
offset = file->offset;
/* Check that the buffer exists ... */
if (buf == NULL) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>read: parsing %s\n", file->fname);*/
if (SMBC_parse_path(frame,
context,
file->fname,
NULL,
&server,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>read: resolving %s\n", path);*/
status = cli_resolve_path(frame, "", context->internal->auth_info,
file->srv->cli, path,
&targetcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
/*d_printf(">>>fstat: resolved path as %s\n", targetpath);*/
status = cli_read(targetcli, file->cli_fd, (char *)buf, offset,
count, &ret);
if (!NT_STATUS_IS_OK(status)) {
errno = SMBC_errno(context, targetcli);
TALLOC_FREE(frame);
return -1;
}
file->offset += ret;
DEBUG(4, (" --> %ld\n", (unsigned long)ret));
TALLOC_FREE(frame);
return ret; /* Success, ret bytes of data ... */
}
NTSTATUS cli_resolve_path(TALLOC_CTX *ctx,
const char *mountpt,
const struct user_auth_info *dfs_auth_info,
struct cli_state *rootcli,
const char *path,
struct cli_state **targetcli,
char **pp_targetpath)
{
struct client_dfs_referral *refs = NULL;
size_t num_refs = 0;
size_t consumed = 0;
struct cli_state *cli_ipc = NULL;
char *dfs_path = NULL;
char *cleanpath = NULL;
char *extrapath = NULL;
int pathlen;
char *server = NULL;
char *share = NULL;
struct cli_state *newcli = NULL;
char *newpath = NULL;
char *newmount = NULL;
char *ppath = NULL;
SMB_STRUCT_STAT sbuf;
uint32 attributes;
NTSTATUS status;
if ( !rootcli || !path || !targetcli ) {
return NT_STATUS_INVALID_PARAMETER;
}
/* Don't do anything if this is not a DFS root. */
if ( !rootcli->dfsroot) {
*targetcli = rootcli;
*pp_targetpath = talloc_strdup(ctx, path);
if (!*pp_targetpath) {
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
*targetcli = NULL;
/* Send a trans2_query_path_info to check for a referral. */
cleanpath = clean_path(ctx, path);
if (!cleanpath) {
return NT_STATUS_NO_MEMORY;
}
dfs_path = cli_dfs_make_full_path(ctx, rootcli, cleanpath);
if (!dfs_path) {
return NT_STATUS_NO_MEMORY;
}
status = cli_qpathinfo_basic( rootcli, dfs_path, &sbuf, &attributes);
if (NT_STATUS_IS_OK(status)) {
/* This is an ordinary path, just return it. */
*targetcli = rootcli;
*pp_targetpath = talloc_strdup(ctx, path);
if (!*pp_targetpath) {
return NT_STATUS_NO_MEMORY;
}
goto done;
}
/* Special case where client asked for a path that does not exist */
if (cli_dfs_check_error(rootcli, NT_STATUS_OBJECT_NAME_NOT_FOUND,
status)) {
*targetcli = rootcli;
*pp_targetpath = talloc_strdup(ctx, path);
if (!*pp_targetpath) {
return NT_STATUS_NO_MEMORY;
}
goto done;
}
/* We got an error, check for DFS referral. */
if (!cli_dfs_check_error(rootcli, NT_STATUS_PATH_NOT_COVERED,
status)) {
return status;
}
/* Check for the referral. */
status = cli_cm_open(ctx,
rootcli,
cli_state_remote_name(rootcli),
"IPC$",
dfs_auth_info,
false,
cli_state_encryption_on(rootcli),
cli_state_protocol(rootcli),
0,
0x20,
&cli_ipc);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = cli_dfs_get_referral(ctx, cli_ipc, dfs_path, &refs,
&num_refs, &consumed);
if (!NT_STATUS_IS_OK(status) || !num_refs) {
return status;
}
/* Just store the first referral for now. */
if (!refs[0].dfspath) {
return NT_STATUS_NOT_FOUND;
}
if (!split_dfs_path(ctx, refs[0].dfspath, &server, &share,
&extrapath)) {
return NT_STATUS_NOT_FOUND;
}
/* Make sure to recreate the original string including any wildcards. */
dfs_path = cli_dfs_make_full_path(ctx, rootcli, path);
if (!dfs_path) {
return NT_STATUS_NO_MEMORY;
}
pathlen = strlen(dfs_path);
consumed = MIN(pathlen, consumed);
*pp_targetpath = talloc_strdup(ctx, &dfs_path[consumed]);
if (!*pp_targetpath) {
return NT_STATUS_NO_MEMORY;
}
dfs_path[consumed] = '\0';
/*
* *pp_targetpath is now the unconsumed part of the path.
* dfs_path is now the consumed part of the path
* (in \server\share\path format).
*/
/* Open the connection to the target server & share */
status = cli_cm_open(ctx, rootcli,
server,
share,
dfs_auth_info,
false,
cli_state_encryption_on(rootcli),
cli_state_protocol(rootcli),
0,
0x20,
targetcli);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Unable to follow dfs referral [\\%s\\%s]\n",
server, share );
return status;
}
if (extrapath && strlen(extrapath) > 0) {
/* EMC Celerra NAS version 5.6.50 (at least) doesn't appear to */
/* put the trailing \ on the path, so to be save we put one in if needed */
if (extrapath[strlen(extrapath)-1] != '\\' && **pp_targetpath != '\\') {
*pp_targetpath = talloc_asprintf(ctx,
"%s\\%s",
extrapath,
*pp_targetpath);
} else {
*pp_targetpath = talloc_asprintf(ctx,
"%s%s",
extrapath,
*pp_targetpath);
}
if (!*pp_targetpath) {
return NT_STATUS_NO_MEMORY;
}
}
/* parse out the consumed mount path */
/* trim off the \server\share\ */
ppath = dfs_path;
if (*ppath != '\\') {
d_printf("cli_resolve_path: "
"dfs_path (%s) not in correct format.\n",
dfs_path );
return NT_STATUS_NOT_FOUND;
}
ppath++; /* Now pointing at start of server name. */
if ((ppath = strchr_m( dfs_path, '\\' )) == NULL) {
return NT_STATUS_NOT_FOUND;
}
ppath++; /* Now pointing at start of share name. */
if ((ppath = strchr_m( ppath+1, '\\' )) == NULL) {
return NT_STATUS_NOT_FOUND;
}
ppath++; /* Now pointing at path component. */
newmount = talloc_asprintf(ctx, "%s\\%s", mountpt, ppath );
if (!newmount) {
return NT_STATUS_NOT_FOUND;
}
cli_set_mntpoint(*targetcli, newmount);
/* Check for another dfs referral, note that we are not
checking for loops here. */
if (!strequal(*pp_targetpath, "\\") && !strequal(*pp_targetpath, "/")) {
status = cli_resolve_path(ctx,
newmount,
dfs_auth_info,
*targetcli,
*pp_targetpath,
&newcli,
&newpath);
if (NT_STATUS_IS_OK(status)) {
/*
* When cli_resolve_path returns true here it's always
* returning the complete path in newpath, so we're done
* here.
*/
*targetcli = newcli;
*pp_targetpath = newpath;
return status;
}
}
done:
/* If returning true ensure we return a dfs root full path. */
if ((*targetcli)->dfsroot) {
dfs_path = talloc_strdup(ctx, *pp_targetpath);
if (!dfs_path) {
return NT_STATUS_NO_MEMORY;
}
*pp_targetpath = cli_dfs_make_full_path(ctx, *targetcli, dfs_path);
if (*pp_targetpath == NULL) {
return NT_STATUS_NO_MEMORY;
}
}
return NT_STATUS_OK;
}
off_t
SMBC_splice_ctx(SMBCCTX *context,
SMBCFILE *srcfile,
SMBCFILE *dstfile,
off_t count,
int (*splice_cb)(off_t n, void *priv),
void *priv)
{
off_t written;
char *server = NULL, *share = NULL, *user = NULL, *password = NULL;
char *path = NULL;
char *targetpath = NULL;
struct cli_state *srccli = NULL;
struct cli_state *dstcli = NULL;
uint16_t port = 0;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
if (!context || !context->internal->initialized) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
if (!srcfile ||
!SMBC_dlist_contains(context->internal->files, srcfile))
{
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
if (!dstfile ||
!SMBC_dlist_contains(context->internal->files, dstfile))
{
errno = EBADF;
TALLOC_FREE(frame);
return -1;
}
if (SMBC_parse_path(frame,
context,
srcfile->fname,
NULL,
&server,
&port,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
status = cli_resolve_path(frame, "", context->internal->auth_info,
srcfile->srv->cli, path,
&srccli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
if (SMBC_parse_path(frame,
context,
dstfile->fname,
NULL,
&server,
&port,
&share,
&path,
&user,
&password,
NULL)) {
errno = EINVAL;
TALLOC_FREE(frame);
return -1;
}
status = cli_resolve_path(frame, "", context->internal->auth_info,
dstfile->srv->cli, path,
&dstcli, &targetpath);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Could not resolve %s\n", path);
errno = ENOENT;
TALLOC_FREE(frame);
return -1;
}
status = cli_splice(srccli, dstcli,
srcfile->cli_fd, dstfile->cli_fd,
count, srcfile->offset, dstfile->offset, &written,
splice_cb, priv);
if (!NT_STATUS_IS_OK(status)) {
errno = SMBC_errno(context, srccli);
TALLOC_FREE(frame);
return -1;
}
srcfile->offset += written;
dstfile->offset += written;
TALLOC_FREE(frame);
return written;
}
BOOL cli_resolve_path( const char *mountpt, struct cli_state *rootcli, const char *path,
struct cli_state **targetcli, pstring targetpath )
{
CLIENT_DFS_REFERRAL *refs = NULL;
size_t num_refs;
uint16 consumed;
struct cli_state *cli_ipc;
pstring fullpath, cleanpath;
int pathlen;
fstring server, share;
struct cli_state *newcli;
pstring newpath;
pstring newmount;
char *ppath;
SMB_STRUCT_STAT sbuf;
uint32 attributes;
*targetcli = NULL;
if ( !rootcli || !path || !targetcli )
return False;
/* send a trans2_query_path_info to check for a referral */
clean_path( cleanpath, path );
make_full_path( fullpath, rootcli->desthost, rootcli->share, cleanpath );
/* don't bother continuing if this is not a dfs root */
if ( !rootcli->dfsroot || cli_qpathinfo_basic( rootcli, cleanpath, &sbuf, &attributes ) ) {
*targetcli = rootcli;
pstrcpy( targetpath, path );
return True;
}
/* we got an error, check for DFS referral */
if ( !cli_dfs_check_error(rootcli) )
return False;
/* check for the referral */
if ( !(cli_ipc = cli_cm_open( rootcli->desthost, "IPC$", False )) )
return False;
if ( !cli_dfs_get_referral(cli_ipc, fullpath, &refs, &num_refs, &consumed)
|| !num_refs )
{
return False;
}
/* just store the first referral for now
Make sure to recreate the original string including any wildcards */
make_full_path( fullpath, rootcli->desthost, rootcli->share, path );
pathlen = strlen( fullpath )*2;
consumed = MIN(pathlen, consumed );
pstrcpy( targetpath, &fullpath[consumed/2] );
split_dfs_path( refs[0].dfspath, server, share );
SAFE_FREE( refs );
/* open the connection to the target path */
if ( (*targetcli = cli_cm_open(server, share, False)) == NULL ) {
d_printf("Unable to follow dfs referral [//%s/%s]\n",
server, share );
return False;
}
/* parse out the consumed mount path */
/* trim off the \server\share\ */
fullpath[consumed/2] = '\0';
dos_clean_name( fullpath );
ppath = strchr_m( fullpath, '\\' );
ppath = strchr_m( ppath+1, '\\' );
ppath = strchr_m( ppath+1, '\\' );
ppath++;
pstr_sprintf( newmount, "%s\\%s", mountpt, ppath );
cli_cm_set_mntpoint( *targetcli, newmount );
/* check for another dfs referral, note that we are not
checking for loops here */
if ( !strequal( targetpath, "\\" ) ) {
if ( cli_resolve_path( newmount, *targetcli, targetpath, &newcli, newpath ) ) {
*targetcli = newcli;
pstrcpy( targetpath, newpath );
}
}
return True;
}
