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NEX-14666 Need to provide SMB 2.1 Client
NEX-17187 panic in smbfs_acl_store
NEX-17231 smbfs create xattr files finds wrong file
NEX-17224 smbfs lookup EINVAL should be ENOENT
NEX-17260 SMB1 client fails to list directory after NEX-14666
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Matt Barden <matt.barden@nexenta.com>
Reviewed by: Rick McNeal <rick.mcneal@nexenta.com>
Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com>
Reviewed by: Joyce McIntosh <joyce.mcintosh@nexenta.com>
and: (cleanup)
@@ -31,13 +31,14 @@
*
* $Id: smbfs_subr.c,v 1.18 2005/02/02 00:22:23 lindak Exp $
*/
/*
- * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright 2018 Nexenta Systems, Inc. All rights reserved.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
@@ -45,10 +46,11 @@
#include <sys/sunddi.h>
#include <netsmb/smb_osdep.h>
#include <netsmb/smb.h>
+#include <netsmb/smb2.h>
#include <netsmb/smb_conn.h>
#include <netsmb/smb_subr.h>
#include <netsmb/smb_rq.h>
#include <smbfs/smbfs.h>
@@ -71,14 +73,15 @@
{
int caseopt = SMB_CS_NONE;
int unicode = (SMB_UNICODE_STRINGS(vcp)) ? 1 : 0;
int error;
- if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0)
- caseopt |= SMB_CS_UPPER;
-
- if (unicode) {
+ /*
+ * SMB1 may need an alignment pad before (not SMB2)
+ */
+ if (((vcp)->vc_flags & SMBV_SMB2) == 0 &&
+ ((vcp)->vc_hflags2 & SMB_FLAGS2_UNICODE) != 0) {
error = mb_put_padbyte(mbp);
if (error)
return (error);
}
@@ -120,15 +123,18 @@
error = smb_put_dmem(mbp, vcp,
name, nmlen, caseopt, NULL);
if (error)
return (error);
}
- /* Put NULL termination. */
+
+ /* SMB1 wants NULL termination. */
+ if (((vcp)->vc_flags & SMBV_SMB2) == 0) {
if (unicode)
error = mb_put_uint16le(mbp, 0);
else
error = mb_put_uint8(mbp, 0);
+ }
return (error);
}
/*
@@ -180,6 +186,274 @@
* Conversion failed, but our caller does not
* deal with errors here, so just put a "?".
* Don't expect to ever see this.
*/
(void) strlcpy(ctx->f_name, "?", ctx->f_namesz);
+}
+
+/*
+ * Decode a directory entry from OtW form into ctx->f_attr
+ *
+ * Caller already put some (wire-format) directory entries
+ * into ctx->f_mdchain and we expect to find one.
+ *
+ * Advancing correctly through the buffer can be tricky if one
+ * tries to add up the size of an entry as you go (which is how
+ * the darwin code this is derived from did it). The easiest way
+ * to correctly advance the position is to get a whole dirent
+ * into another mdchain (entry_mdc) based on NextEntryOffset,
+ * and then scan the data from that mdchain. On the last entry,
+ * we don't know the entire length, so just scan directly from
+ * what remains of the multi-entry buffer instead of trying to
+ * figure out the length to copy into a separate mdchain.
+ */
+int
+smbfs_decode_dirent(struct smbfs_fctx *ctx)
+{
+ struct mdchain entry_mdc;
+ struct mdchain *mdp = &ctx->f_mdchain;
+ size_t nmlen;
+ uint64_t llongint;
+ uint32_t nmsize, dattr;
+ uint32_t nextoff = 0;
+ int error;
+
+ /* In case we error out... */
+ ctx->f_nmlen = 0;
+ ctx->f_rkey = (uint32_t)-1;
+ bzero(&entry_mdc, sizeof (entry_mdc));
+
+ /*
+ * Setup mdp to point to an mbchain holding
+ * what should be a single directory entry.
+ */
+ error = md_get_uint32le(mdp, &nextoff);
+ if (error != 0)
+ goto errout;
+ if (nextoff >= 4) {
+ /*
+ * More entries follow. Make a new mbchain
+ * holding just this one entry, then advance.
+ */
+ mblk_t *m = NULL;
+ error = md_get_mbuf(mdp, nextoff - 4, &m);
+ if (error != 0)
+ goto errout;
+ md_initm(&entry_mdc, m);
+ mdp = &entry_mdc;
+ ctx->f_eofs += nextoff;
+ } else {
+ /* Scan directly from ctx->f_mdchain */
+ ctx->f_eofs = ctx->f_left;
+ }
+
+ /*
+ * Decode the fixed-size parts
+ */
+ switch (ctx->f_infolevel) {
+ case FileFullDirectoryInformation:
+ case SMB_FIND_FULL_DIRECTORY_INFO:
+ md_get_uint32le(mdp, &ctx->f_rkey); /* resume key (idx) */
+ md_get_uint64le(mdp, &llongint); /* creation time */
+ smb_time_NT2local(llongint, &ctx->f_attr.fa_createtime);
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &ctx->f_attr.fa_atime);
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &ctx->f_attr.fa_mtime);
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &ctx->f_attr.fa_ctime);
+ md_get_uint64le(mdp, &llongint); /* file size */
+ ctx->f_attr.fa_size = llongint;
+ md_get_uint64le(mdp, &llongint); /* alloc. size */
+ ctx->f_attr.fa_allocsz = llongint;
+ md_get_uint32le(mdp, &dattr); /* ext. file attributes */
+ ctx->f_attr.fa_attr = dattr;
+ error = md_get_uint32le(mdp, &nmsize); /* name size (otw) */
+ if (error)
+ goto errout;
+ md_get_uint32le(mdp, NULL); /* Ea size */
+ break;
+
+ case FileStreamInformation:
+ error = md_get_uint32le(mdp, &nmsize); /* name size (otw) */
+ md_get_uint64le(mdp, &llongint); /* file size */
+ ctx->f_attr.fa_size = llongint;
+ md_get_uint64le(mdp, &llongint); /* alloc. size */
+ ctx->f_attr.fa_allocsz = llongint;
+ /*
+ * Stream names start with a ':' that we want to skip.
+ * This is the easiest place to take care of that.
+ * Always unicode here.
+ */
+ if (nmsize >= 2) {
+ struct mdchain save_mdc;
+ uint16_t wch;
+ save_mdc = *mdp;
+ md_get_uint16le(mdp, &wch);
+ if (wch == ':') {
+ /* OK, we skipped the ':' */
+ nmsize -= 2;
+ } else {
+ SMBVDEBUG("No leading : in stream?\n");
+ /* restore position */
+ *mdp = save_mdc;
+ }
+ }
+ break;
+
+ default:
+ SMBVDEBUG("unexpected info level %d\n", ctx->f_infolevel);
+ error = EINVAL;
+ goto errout;
+ }
+
+ /*
+ * Get the filename, and convert to utf-8
+ * Allocated f_name in findopen
+ */
+ nmlen = ctx->f_namesz;
+ error = smb_get_dstring(mdp, SSTOVC(ctx->f_ssp),
+ ctx->f_name, &nmlen, nmsize);
+ if (error != 0)
+ goto errout;
+ ctx->f_nmlen = (int)nmlen;
+ md_done(&entry_mdc);
+ return (0);
+
+errout:
+ /*
+ * Something bad has happened and we ran out of data
+ * before we could parse all f_ecnt entries expected.
+ * Give up on the current buffer.
+ */
+ SMBVDEBUG("ran out of data\n");
+ ctx->f_eofs = ctx->f_left;
+ md_done(&entry_mdc);
+ return (error);
+}
+
+/*
+ * Decode FileAllInformation
+ *
+ * The data is a concatenation of:
+ * FileBasicInformation
+ * FileStandardInformation
+ * FileInternalInformation
+ * FileEaInformation
+ * FilePositionInformation
+ * FileModeInformation
+ * FileAlignmentInformation
+ * FileNameInformation
+ */
+/*ARGSUSED*/
+int
+smbfs_decode_file_all_info(struct smb_share *ssp,
+ struct mdchain *mdp, struct smbfattr *fap)
+{
+ uint64_t llongint, lsize;
+ uint32_t dattr;
+ int error;
+
+ /*
+ * This part is: FileBasicInformation
+ */
+
+ /* creation time */
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &fap->fa_createtime);
+
+ /* last access time */
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &fap->fa_atime);
+
+ /* last write time */
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &fap->fa_mtime);
+
+ /* last change time */
+ md_get_uint64le(mdp, &llongint);
+ smb_time_NT2local(llongint, &fap->fa_ctime);
+
+ /* attributes */
+ md_get_uint32le(mdp, &dattr);
+ fap->fa_attr = dattr;
+
+ /* reserved */
+ md_get_uint32le(mdp, NULL);
+
+ /*
+ * This part is: FileStandardInformation
+ */
+
+ /* allocation size */
+ md_get_uint64le(mdp, &lsize);
+ fap->fa_allocsz = lsize;
+
+ /* File size */
+ error = md_get_uint64le(mdp, &lsize);
+ fap->fa_size = lsize;
+
+ /*
+ * There's more after this but we don't need it:
+ * Remainder of FileStandardInformation
+ * NumLlinks, DeletOnClose, IsDir, reserved.
+ * Then:
+ * FileInternalInformation
+ * FileEaInformation
+ * FilePositionInformation
+ * FileModeInformation
+ * FileAlignmentInformation
+ * FileNameInformation
+ */
+
+ return (error);
+}
+
+/*
+ * Decode FileFsAttributeInformation
+ *
+ * ULONG FileSystemAttributes;
+ * LONG MaximumComponentNameLength;
+ * ULONG FileSystemNameLength;
+ * WCHAR FileSystemName[1];
+ */
+int
+smbfs_decode_fs_attr_info(struct smb_share *ssp,
+ struct mdchain *mdp, struct smb_fs_attr_info *fsa)
+{
+ struct smb_vc *vcp = SSTOVC(ssp);
+ uint32_t nlen;
+ int error;
+
+ md_get_uint32le(mdp, &fsa->fsa_aflags);
+ md_get_uint32le(mdp, &fsa->fsa_maxname);
+ error = md_get_uint32le(mdp, &nlen); /* fs name length */
+ if (error)
+ goto out;
+
+ /*
+ * Get the FS type name.
+ */
+ bzero(fsa->fsa_tname, FSTYPSZ);
+ if (SMB_UNICODE_STRINGS(vcp)) {
+ uint16_t tmpbuf[FSTYPSZ];
+ size_t tmplen, outlen;
+
+ if (nlen > sizeof (tmpbuf))
+ nlen = sizeof (tmpbuf);
+ error = md_get_mem(mdp, tmpbuf, nlen, MB_MSYSTEM);
+ if (error != 0)
+ goto out;
+ tmplen = nlen / 2; /* UCS-2 chars */
+ outlen = FSTYPSZ - 1;
+ error = uconv_u16tou8(tmpbuf, &tmplen,
+ (uchar_t *)fsa->fsa_tname, &outlen,
+ UCONV_IN_LITTLE_ENDIAN);
+ } else {
+ if (nlen > (FSTYPSZ - 1))
+ nlen = FSTYPSZ - 1;
+ error = md_get_mem(mdp, fsa->fsa_tname, nlen, MB_MSYSTEM);
+ }
+
+out:
+ return (error);
}