From patchwork Wed May 30 00:47:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronnie Sahlberg X-Patchwork-Id: 922501 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40wX5r3L2Wz9s0w for ; Wed, 30 May 2018 10:48:48 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S968497AbeE3Asl (ORCPT ); Tue, 29 May 2018 20:48:41 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:45206 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S968507AbeE3As3 (ORCPT ); Tue, 29 May 2018 20:48:29 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id EC907401EF00; Wed, 30 May 2018 00:48:28 +0000 (UTC) Received: from test1190.test.redhat.com (vpn2-54-55.bne.redhat.com [10.64.54.55]) by smtp.corp.redhat.com (Postfix) with ESMTP id A508F1102E29; Wed, 30 May 2018 00:48:26 +0000 (UTC) From: Ronnie Sahlberg To: linux-cifs Cc: Steve French Subject: [PATCH 06/15] cifs: remove struct smb2_hdr Date: Wed, 30 May 2018 10:47:06 +1000 Message-Id: <20180530004715.859-7-lsahlber@redhat.com> In-Reply-To: <20180530004715.859-1-lsahlber@redhat.com> References: <20180530004715.859-1-lsahlber@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Wed, 30 May 2018 00:48:28 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Wed, 30 May 2018 00:48:28 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'lsahlber@redhat.com' RCPT:'' Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org struct smb2_hdr is now just a wrapper for smb2_sync_hdr. We can thus get rid of smb2_hdr completely and access the sync header directly. Signed-off-by: Ronnie Sahlberg --- fs/cifs/misc.c | 2 +- fs/cifs/smb2glob.h | 5 ----- fs/cifs/smb2maperror.c | 2 +- fs/cifs/smb2misc.c | 2 +- fs/cifs/smb2ops.c | 12 ++++++------ fs/cifs/smb2pdu.c | 28 ++++++++++++++-------------- fs/cifs/smb2pdu.h | 45 ++++++++++++++++++--------------------------- 7 files changed, 41 insertions(+), 55 deletions(-) diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 96849b530e32..aba3fc3058da 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -148,7 +148,7 @@ cifs_buf_get(void) * SMB2 header is bigger than CIFS one - no problems to clean some * more bytes for CIFS. */ - size_t buf_size = sizeof(struct smb2_hdr); + size_t buf_size = sizeof(struct smb2_sync_hdr); /* * We could use negotiated size instead of max_msgsize - diff --git a/fs/cifs/smb2glob.h b/fs/cifs/smb2glob.h index 401a5d856636..0ffa18094335 100644 --- a/fs/cifs/smb2glob.h +++ b/fs/cifs/smb2glob.h @@ -61,9 +61,4 @@ /* Maximum buffer size value we can send with 1 credit */ #define SMB2_MAX_BUFFER_SIZE 65536 -static inline struct smb2_sync_hdr *get_sync_hdr(void *buf) -{ - return &(((struct smb2_hdr *)buf)->sync_hdr); -} - #endif /* _SMB2_GLOB_H */ diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c index 86f1acaa759b..20a2d304c603 100644 --- a/fs/cifs/smb2maperror.c +++ b/fs/cifs/smb2maperror.c @@ -2451,7 +2451,7 @@ smb2_print_status(__le32 status) int map_smb2_to_linux_error(char *buf, bool log_err) { - struct smb2_sync_hdr *shdr = get_sync_hdr(buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; unsigned int i; int rc = -EIO; __le32 smb2err = shdr->Status; diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index 4c6d14d14e4f..bec7fd1d731a 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -709,7 +709,7 @@ smb2_cancelled_close_fid(struct work_struct *work) int smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server) { - struct smb2_sync_hdr *sync_hdr = get_sync_hdr(buffer); + struct smb2_sync_hdr *sync_hdr = (struct smb2_sync_hdr *)buffer; struct smb2_create_rsp *rsp = (struct smb2_create_rsp *)buffer; struct cifs_tcon *tcon; struct close_cancelled_open *cancelled; diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 20cc67c3a6d0..156a2fb2b2fc 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -123,7 +123,7 @@ smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) static unsigned int smb2_get_credits(struct mid_q_entry *mid) { - struct smb2_sync_hdr *shdr = get_sync_hdr(mid->resp_buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)mid->resp_buf; return le16_to_cpu(shdr->CreditRequest); } @@ -190,7 +190,7 @@ static struct mid_q_entry * smb2_find_mid(struct TCP_Server_Info *server, char *buf) { struct mid_q_entry *mid; - struct smb2_sync_hdr *shdr = get_sync_hdr(buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; __u64 wire_mid = le64_to_cpu(shdr->MessageId); if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { @@ -215,7 +215,7 @@ static void smb2_dump_detail(void *buf, struct TCP_Server_Info *server) { #ifdef CONFIG_CIFS_DEBUG2 - struct smb2_sync_hdr *shdr = get_sync_hdr(buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId, @@ -1303,7 +1303,7 @@ smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, static bool smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length) { - struct smb2_sync_hdr *shdr = get_sync_hdr(buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; if (shdr->Status != STATUS_PENDING) return false; @@ -1321,7 +1321,7 @@ smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length) static bool smb2_is_session_expired(char *buf) { - struct smb2_sync_hdr *shdr = get_sync_hdr(buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED) return false; @@ -2533,7 +2533,7 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, unsigned int cur_page_idx; unsigned int pad_len; struct cifs_readdata *rdata = mid->callback_data; - struct smb2_sync_hdr *shdr = get_sync_hdr(buf); + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; struct bio_vec *bvec = NULL; struct iov_iter iter; struct kvec iov; diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 76f618bb74ea..6accfe4fcc80 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -709,7 +709,7 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES; security_blob = smb2_get_data_area_len(&blob_offset, &blob_length, - &rsp->hdr.sync_hdr); + (struct smb2_sync_hdr *)rsp); /* * See MS-SMB2 section 2.2.4: if no blob, client picks default which * for us will be @@ -1072,7 +1072,7 @@ SMB2_auth_kerberos(struct SMB2_sess_data *sess_data) goto out_put_spnego_key; rsp = (struct smb2_sess_setup_rsp *)sess_data->iov[0].iov_base; - ses->Suid = rsp->hdr.sync_hdr.SessionId; + ses->Suid = rsp->sync_hdr.SessionId; ses->session_flags = le16_to_cpu(rsp->SessionFlags); @@ -1148,7 +1148,7 @@ SMB2_sess_auth_rawntlmssp_negotiate(struct SMB2_sess_data *sess_data) /* If true, rc here is expected and not an error */ if (sess_data->buf0_type != CIFS_NO_BUFFER && - rsp->hdr.sync_hdr.Status == STATUS_MORE_PROCESSING_REQUIRED) + rsp->sync_hdr.Status == STATUS_MORE_PROCESSING_REQUIRED) rc = 0; if (rc) @@ -1169,7 +1169,7 @@ SMB2_sess_auth_rawntlmssp_negotiate(struct SMB2_sess_data *sess_data) cifs_dbg(FYI, "rawntlmssp session setup challenge phase\n"); - ses->Suid = rsp->hdr.sync_hdr.SessionId; + ses->Suid = rsp->sync_hdr.SessionId; ses->session_flags = le16_to_cpu(rsp->SessionFlags); out: @@ -1227,7 +1227,7 @@ SMB2_sess_auth_rawntlmssp_authenticate(struct SMB2_sess_data *sess_data) rsp = (struct smb2_sess_setup_rsp *)sess_data->iov[0].iov_base; - ses->Suid = rsp->hdr.sync_hdr.SessionId; + ses->Suid = rsp->sync_hdr.SessionId; ses->session_flags = le16_to_cpu(rsp->SessionFlags); rc = SMB2_sess_establish_session(sess_data); @@ -1475,7 +1475,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, tcon->maximal_access = le32_to_cpu(rsp->MaximalAccess); tcon->tidStatus = CifsGood; tcon->need_reconnect = false; - tcon->tid = rsp->hdr.sync_hdr.TreeId; + tcon->tid = rsp->sync_hdr.TreeId; strlcpy(tcon->treeName, tree, sizeof(tcon->treeName)); if ((rsp->Capabilities & SMB2_SHARE_CAP_DFS) && @@ -1495,7 +1495,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, return rc; tcon_error_exit: - if (rsp && rsp->hdr.sync_hdr.Status == STATUS_BAD_NETWORK_NAME) { + if (rsp && rsp->sync_hdr.Status == STATUS_BAD_NETWORK_NAME) { cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree); } goto tcon_exit; @@ -2439,7 +2439,7 @@ smb2_echo_callback(struct mid_q_entry *mid) unsigned int credits_received = 1; if (mid->mid_state == MID_RESPONSE_RECEIVED) - credits_received = le16_to_cpu(rsp->hdr.sync_hdr.CreditRequest); + credits_received = le16_to_cpu(rsp->sync_hdr.CreditRequest); DeleteMidQEntry(mid); add_credits(server, credits_received, CIFS_ECHO_OP); @@ -2919,7 +2919,7 @@ smb2_writev_callback(struct mid_q_entry *mid) switch (mid->mid_state) { case MID_RESPONSE_RECEIVED: - credits_received = le16_to_cpu(rsp->hdr.sync_hdr.CreditRequest); + credits_received = le16_to_cpu(rsp->sync_hdr.CreditRequest); wdata->result = smb2_check_receive(mid, tcon->ses->server, 0); if (wdata->result != 0) break; @@ -3310,7 +3310,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon, if (rc) { if (rc == -ENODATA && - rsp->hdr.sync_hdr.Status == STATUS_NO_MORE_FILES) { + rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) { srch_inf->endOfSearch = true; rc = 0; } @@ -3693,7 +3693,7 @@ SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon, rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; info = (struct smb2_fs_full_size_info *)(server->vals->header_preamble_size + - le16_to_cpu(rsp->OutputBufferOffset) + (char *)&rsp->hdr); + le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); rc = validate_iov(server, le16_to_cpu(rsp->OutputBufferOffset), le32_to_cpu(rsp->OutputBufferLength), &rsp_iov, @@ -3758,14 +3758,14 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon, if (level == FS_ATTRIBUTE_INFORMATION) memcpy(&tcon->fsAttrInfo, server->vals->header_preamble_size + offset - + (char *)&rsp->hdr, min_t(unsigned int, + + (char *)rsp, min_t(unsigned int, rsp_len, max_len)); else if (level == FS_DEVICE_INFORMATION) memcpy(&tcon->fsDevInfo, server->vals->header_preamble_size + offset - + (char *)&rsp->hdr, sizeof(FILE_SYSTEM_DEVICE_INFO)); + + (char *)rsp, sizeof(FILE_SYSTEM_DEVICE_INFO)); else if (level == FS_SECTOR_SIZE_INFORMATION) { struct smb3_fs_ss_info *ss_info = (struct smb3_fs_ss_info *) - (server->vals->header_preamble_size + offset + (char *)&rsp->hdr); + (server->vals->header_preamble_size + offset + (char *)rsp); tcon->ss_flags = le32_to_cpu(ss_info->Flags); tcon->perf_sector_size = le32_to_cpu(ss_info->PhysicalBytesPerSectorForPerf); diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 7b49a5eeb489..e8c5eb5f7ace 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -122,15 +122,6 @@ struct smb2_sync_pdu { __le16 StructureSize2; /* size of wct area (varies, request specific) */ } __packed; -struct smb2_hdr { - struct smb2_sync_hdr sync_hdr; -} __packed; - -struct smb2_pdu { - struct smb2_hdr hdr; - __le16 StructureSize2; /* size of wct area (varies, request specific) */ -} __packed; - #define SMB3_AES128CMM_NONCE 11 #define SMB3_AES128GCM_NONCE 12 @@ -165,7 +156,7 @@ struct smb2_transform_hdr { #define SMB2_ERROR_STRUCTURE_SIZE2 cpu_to_le16(9) struct smb2_err_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; __le16 Reserved; /* MBZ */ __le32 ByteCount; /* even if zero, at least one byte follows */ @@ -303,7 +294,7 @@ struct smb2_posix_neg_context { } __packed; struct smb2_negotiate_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 65 */ __le16 SecurityMode; __le16 DialectRevision; @@ -343,7 +334,7 @@ struct smb2_sess_setup_req { #define SMB2_SESSION_FLAG_IS_NULL 0x0002 #define SMB2_SESSION_FLAG_ENCRYPT_DATA 0x0004 struct smb2_sess_setup_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 9 */ __le16 SessionFlags; __le16 SecurityBufferOffset; @@ -358,7 +349,7 @@ struct smb2_logoff_req { } __packed; struct smb2_logoff_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 4 */ __le16 Reserved; } __packed; @@ -454,7 +445,7 @@ struct smb2_tree_connect_req_extension { } __packed; struct smb2_tree_connect_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 16 */ __u8 ShareType; /* see below */ __u8 Reserved; @@ -505,7 +496,7 @@ struct smb2_tree_disconnect_req { } __packed; struct smb2_tree_disconnect_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 4 */ __le16 Reserved; } __packed; @@ -640,7 +631,7 @@ struct smb2_create_req { } __packed; struct smb2_create_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 89 */ __u8 OplockLevel; __u8 Reserved; @@ -896,7 +887,7 @@ struct smb2_ioctl_req { } __packed; struct smb2_ioctl_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 57 */ __u16 Reserved; __le32 CtlCode; @@ -923,7 +914,7 @@ struct smb2_close_req { } __packed; struct smb2_close_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* 60 */ __le16 Flags; __le32 Reserved; @@ -946,7 +937,7 @@ struct smb2_flush_req { } __packed; struct smb2_flush_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; __le16 Reserved; } __packed; @@ -978,7 +969,7 @@ struct smb2_read_plain_req { } __packed; struct smb2_read_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 17 */ __u8 DataOffset; __u8 Reserved; @@ -1009,7 +1000,7 @@ struct smb2_write_req { } __packed; struct smb2_write_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 17 */ __u8 DataOffset; __u8 Reserved; @@ -1043,7 +1034,7 @@ struct smb2_lock_req { } __packed; struct smb2_lock_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 4 */ __le16 Reserved; } __packed; @@ -1055,7 +1046,7 @@ struct smb2_echo_req { } __packed; struct smb2_echo_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 4 */ __u16 Reserved; } __packed; @@ -1081,7 +1072,7 @@ struct smb2_query_directory_req { } __packed; struct smb2_query_directory_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 9 */ __le16 OutputBufferOffset; __le32 OutputBufferLength; @@ -1130,7 +1121,7 @@ struct smb2_query_info_req { } __packed; struct smb2_query_info_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 9 */ __le16 OutputBufferOffset; __le32 OutputBufferLength; @@ -1152,7 +1143,7 @@ struct smb2_set_info_req { } __packed; struct smb2_set_info_rsp { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 2 */ } __packed; @@ -1169,7 +1160,7 @@ struct smb2_oplock_break { #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01) struct smb2_lease_break { - struct smb2_hdr hdr; + struct smb2_sync_hdr sync_hdr; __le16 StructureSize; /* Must be 44 */ __le16 Reserved; __le32 Flags;