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-rw-r--r--fs/ksmbd/auth.c4
-rw-r--r--fs/ksmbd/connection.c9
-rw-r--r--fs/ksmbd/ksmbd_work.h4
-rw-r--r--fs/ksmbd/oplock.c24
-rw-r--r--fs/ksmbd/smb2misc.c2
-rw-r--r--fs/ksmbd/smb2pdu.c440
-rw-r--r--fs/ksmbd/smb2pdu.h20
-rw-r--r--fs/ksmbd/smb_common.c11
-rw-r--r--fs/ksmbd/smb_common.h6
-rw-r--r--fs/ksmbd/transport_rdma.c2
10 files changed, 260 insertions, 262 deletions
diff --git a/fs/ksmbd/auth.c b/fs/ksmbd/auth.c
index 30a92ddc1817..c69c5471db1c 100644
--- a/fs/ksmbd/auth.c
+++ b/fs/ksmbd/auth.c
@@ -873,9 +873,9 @@ int ksmbd_gen_preauth_integrity_hash(struct ksmbd_conn *conn, char *buf,
__u8 *pi_hash)
{
int rc;
- struct smb2_hdr *rcv_hdr = (struct smb2_hdr *)buf;
+ struct smb2_hdr *rcv_hdr = smb2_get_msg(buf);
char *all_bytes_msg = (char *)&rcv_hdr->ProtocolId;
- int msg_size = be32_to_cpu(rcv_hdr->smb2_buf_length);
+ int msg_size = get_rfc1002_len(buf);
struct ksmbd_crypto_ctx *ctx = NULL;
if (conn->preauth_info->Preauth_HashId !=
diff --git a/fs/ksmbd/connection.c b/fs/ksmbd/connection.c
index b57a0d8a392f..12f710ccbdff 100644
--- a/fs/ksmbd/connection.c
+++ b/fs/ksmbd/connection.c
@@ -158,14 +158,13 @@ void ksmbd_conn_wait_idle(struct ksmbd_conn *conn)
int ksmbd_conn_write(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb_hdr *rsp_hdr = work->response_buf;
size_t len = 0;
int sent;
struct kvec iov[3];
int iov_idx = 0;
ksmbd_conn_try_dequeue_request(work);
- if (!rsp_hdr) {
+ if (!work->response_buf) {
pr_err("NULL response header\n");
return -EINVAL;
}
@@ -177,7 +176,7 @@ int ksmbd_conn_write(struct ksmbd_work *work)
}
if (work->aux_payload_sz) {
- iov[iov_idx] = (struct kvec) { rsp_hdr, work->resp_hdr_sz };
+ iov[iov_idx] = (struct kvec) { work->response_buf, work->resp_hdr_sz };
len += iov[iov_idx++].iov_len;
iov[iov_idx] = (struct kvec) { work->aux_payload_buf, work->aux_payload_sz };
len += iov[iov_idx++].iov_len;
@@ -185,8 +184,8 @@ int ksmbd_conn_write(struct ksmbd_work *work)
if (work->tr_buf)
iov[iov_idx].iov_len = work->resp_hdr_sz;
else
- iov[iov_idx].iov_len = get_rfc1002_len(rsp_hdr) + 4;
- iov[iov_idx].iov_base = rsp_hdr;
+ iov[iov_idx].iov_len = get_rfc1002_len(work->response_buf) + 4;
+ iov[iov_idx].iov_base = work->response_buf;
len += iov[iov_idx++].iov_len;
}
diff --git a/fs/ksmbd/ksmbd_work.h b/fs/ksmbd/ksmbd_work.h
index f7156bc50049..5ece58e40c97 100644
--- a/fs/ksmbd/ksmbd_work.h
+++ b/fs/ksmbd/ksmbd_work.h
@@ -92,7 +92,7 @@ struct ksmbd_work {
*/
static inline void *ksmbd_resp_buf_next(struct ksmbd_work *work)
{
- return work->response_buf + work->next_smb2_rsp_hdr_off;
+ return work->response_buf + work->next_smb2_rsp_hdr_off + 4;
}
/**
@@ -101,7 +101,7 @@ static inline void *ksmbd_resp_buf_next(struct ksmbd_work *work)
*/
static inline void *ksmbd_req_buf_next(struct ksmbd_work *work)
{
- return work->request_buf + work->next_smb2_rcv_hdr_off;
+ return work->request_buf + work->next_smb2_rcv_hdr_off + 4;
}
struct ksmbd_work *ksmbd_alloc_work_struct(void);
diff --git a/fs/ksmbd/oplock.c b/fs/ksmbd/oplock.c
index f9dae6ef2115..ce0e85552da9 100644
--- a/fs/ksmbd/oplock.c
+++ b/fs/ksmbd/oplock.c
@@ -629,10 +629,10 @@ static void __smb2_oplock_break_noti(struct work_struct *wk)
return;
}
- rsp_hdr = work->response_buf;
+ rsp_hdr = smb2_get_msg(work->response_buf);
memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
- rsp_hdr->smb2_buf_length =
- cpu_to_be32(smb2_hdr_size_no_buflen(conn->vals));
+ *(__be32 *)work->response_buf =
+ cpu_to_be32(conn->vals->header_size);
rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
rsp_hdr->CreditRequest = cpu_to_le16(0);
@@ -645,7 +645,7 @@ static void __smb2_oplock_break_noti(struct work_struct *wk)
rsp_hdr->SessionId = 0;
memset(rsp_hdr->Signature, 0, 16);
- rsp = work->response_buf;
+ rsp = smb2_get_msg(work->response_buf);
rsp->StructureSize = cpu_to_le16(24);
if (!br_info->open_trunc &&
@@ -659,7 +659,7 @@ static void __smb2_oplock_break_noti(struct work_struct *wk)
rsp->PersistentFid = cpu_to_le64(fp->persistent_id);
rsp->VolatileFid = cpu_to_le64(fp->volatile_id);
- inc_rfc1001_len(rsp, 24);
+ inc_rfc1001_len(work->response_buf, 24);
ksmbd_debug(OPLOCK,
"sending oplock break v_id %llu p_id = %llu lock level = %d\n",
@@ -736,10 +736,10 @@ static void __smb2_lease_break_noti(struct work_struct *wk)
return;
}
- rsp_hdr = work->response_buf;
+ rsp_hdr = smb2_get_msg(work->response_buf);
memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
- rsp_hdr->smb2_buf_length =
- cpu_to_be32(smb2_hdr_size_no_buflen(conn->vals));
+ *(__be32 *)work->response_buf =
+ cpu_to_be32(conn->vals->header_size);
rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
rsp_hdr->CreditRequest = cpu_to_le16(0);
@@ -752,7 +752,7 @@ static void __smb2_lease_break_noti(struct work_struct *wk)
rsp_hdr->SessionId = 0;
memset(rsp_hdr->Signature, 0, 16);
- rsp = work->response_buf;
+ rsp = smb2_get_msg(work->response_buf);
rsp->StructureSize = cpu_to_le16(44);
rsp->Epoch = br_info->epoch;
rsp->Flags = 0;
@@ -768,7 +768,7 @@ static void __smb2_lease_break_noti(struct work_struct *wk)
rsp->AccessMaskHint = 0;
rsp->ShareMaskHint = 0;
- inc_rfc1001_len(rsp, 44);
+ inc_rfc1001_len(work->response_buf, 44);
ksmbd_conn_write(work);
ksmbd_free_work_struct(work);
@@ -1398,7 +1398,7 @@ struct lease_ctx_info *parse_lease_state(void *open_req)
if (!lreq)
return NULL;
- data_offset = (char *)req + 4 + le32_to_cpu(req->CreateContextsOffset);
+ data_offset = (char *)req + le32_to_cpu(req->CreateContextsOffset);
cc = (struct create_context *)data_offset;
do {
cc = (struct create_context *)((char *)cc + next);
@@ -1462,7 +1462,7 @@ struct create_context *smb2_find_context_vals(void *open_req, const char *tag)
* CreateContextsOffset and CreateContextsLength are guaranteed to
* be valid because of ksmbd_smb2_check_message().
*/
- cc = (struct create_context *)((char *)req + 4 +
+ cc = (struct create_context *)((char *)req +
le32_to_cpu(req->CreateContextsOffset));
remain_len = le32_to_cpu(req->CreateContextsLength);
do {
diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c
index 0239fa96926c..0aba1c91fd37 100644
--- a/fs/ksmbd/smb2misc.c
+++ b/fs/ksmbd/smb2misc.c
@@ -351,7 +351,7 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work)
struct smb2_hdr *hdr = &pdu->hdr;
int command;
__u32 clc_len; /* calculated length */
- __u32 len = get_rfc1002_len(pdu);
+ __u32 len = get_rfc1002_len(work->request_buf);
if (le32_to_cpu(hdr->NextCommand) > 0)
len = le32_to_cpu(hdr->NextCommand);
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index 04f82b5870c3..63bf185530c2 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -44,8 +44,8 @@ static void __wbuf(struct ksmbd_work *work, void **req, void **rsp)
*req = ksmbd_req_buf_next(work);
*rsp = ksmbd_resp_buf_next(work);
} else {
- *req = work->request_buf;
- *rsp = work->response_buf;
+ *req = smb2_get_msg(work->request_buf);
+ *rsp = smb2_get_msg(work->response_buf);
}
}
@@ -93,7 +93,7 @@ struct channel *lookup_chann_list(struct ksmbd_session *sess, struct ksmbd_conn
*/
int smb2_get_ksmbd_tcon(struct ksmbd_work *work)
{
- struct smb2_hdr *req_hdr = work->request_buf;
+ struct smb2_hdr *req_hdr = smb2_get_msg(work->request_buf);
unsigned int cmd = le16_to_cpu(req_hdr->Command);
int tree_id;
@@ -131,7 +131,7 @@ void smb2_set_err_rsp(struct ksmbd_work *work)
if (work->next_smb2_rcv_hdr_off)
err_rsp = ksmbd_resp_buf_next(work);
else
- err_rsp = work->response_buf;
+ err_rsp = smb2_get_msg(work->response_buf);
if (err_rsp->hdr.Status != STATUS_STOPPED_ON_SYMLINK) {
err_rsp->StructureSize = SMB2_ERROR_STRUCTURE_SIZE2_LE;
@@ -151,7 +151,7 @@ void smb2_set_err_rsp(struct ksmbd_work *work)
*/
bool is_smb2_neg_cmd(struct ksmbd_work *work)
{
- struct smb2_hdr *hdr = work->request_buf;
+ struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
/* is it SMB2 header ? */
if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
@@ -175,7 +175,7 @@ bool is_smb2_neg_cmd(struct ksmbd_work *work)
*/
bool is_smb2_rsp(struct ksmbd_work *work)
{
- struct smb2_hdr *hdr = work->response_buf;
+ struct smb2_hdr *hdr = smb2_get_msg(work->response_buf);
/* is it SMB2 header ? */
if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
@@ -201,7 +201,7 @@ u16 get_smb2_cmd_val(struct ksmbd_work *work)
if (work->next_smb2_rcv_hdr_off)
rcv_hdr = ksmbd_req_buf_next(work);
else
- rcv_hdr = work->request_buf;
+ rcv_hdr = smb2_get_msg(work->request_buf);
return le16_to_cpu(rcv_hdr->Command);
}
@@ -217,7 +217,7 @@ void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err)
if (work->next_smb2_rcv_hdr_off)
rsp_hdr = ksmbd_resp_buf_next(work);
else
- rsp_hdr = work->response_buf;
+ rsp_hdr = smb2_get_msg(work->response_buf);
rsp_hdr->Status = err;
smb2_set_err_rsp(work);
}
@@ -238,13 +238,11 @@ int init_smb2_neg_rsp(struct ksmbd_work *work)
if (conn->need_neg == false)
return -EINVAL;
- rsp_hdr = work->response_buf;
+ *(__be32 *)work->response_buf =
+ cpu_to_be32(conn->vals->header_size);
+ rsp_hdr = smb2_get_msg(work->response_buf);
memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
-
- rsp_hdr->smb2_buf_length =
- cpu_to_be32(smb2_hdr_size_no_buflen(conn->vals));
-
rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
rsp_hdr->CreditRequest = cpu_to_le16(2);
@@ -257,7 +255,7 @@ int init_smb2_neg_rsp(struct ksmbd_work *work)
rsp_hdr->SessionId = 0;
memset(rsp_hdr->Signature, 0, 16);
- rsp = work->response_buf;
+ rsp = smb2_get_msg(work->response_buf);
WARN_ON(ksmbd_conn_good(work));
@@ -278,12 +276,12 @@ int init_smb2_neg_rsp(struct ksmbd_work *work)
rsp->SecurityBufferOffset = cpu_to_le16(128);
rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH);
- ksmbd_copy_gss_neg_header(((char *)(&rsp->hdr) +
- sizeof(rsp->hdr.smb2_buf_length)) +
+ ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) +
le16_to_cpu(rsp->SecurityBufferOffset));
- inc_rfc1001_len(rsp, sizeof(struct smb2_negotiate_rsp) -
- sizeof(struct smb2_hdr) - sizeof(rsp->Buffer) +
- AUTH_GSS_LENGTH);
+ inc_rfc1001_len(work->response_buf,
+ sizeof(struct smb2_negotiate_rsp) -
+ sizeof(struct smb2_hdr) - sizeof(rsp->Buffer) +
+ AUTH_GSS_LENGTH);
rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE;
if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY)
rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE;
@@ -388,8 +386,8 @@ static void init_chained_smb2_rsp(struct ksmbd_work *work)
next_hdr_offset = le32_to_cpu(req->NextCommand);
new_len = ALIGN(len, 8);
- inc_rfc1001_len(work->response_buf, ((sizeof(struct smb2_hdr) - 4)
- + new_len - len));
+ inc_rfc1001_len(work->response_buf,
+ sizeof(struct smb2_hdr) + new_len - len);
rsp->NextCommand = cpu_to_le32(new_len);
work->next_smb2_rcv_hdr_off += next_hdr_offset;
@@ -407,7 +405,7 @@ static void init_chained_smb2_rsp(struct ksmbd_work *work)
work->compound_fid = KSMBD_NO_FID;
work->compound_pfid = KSMBD_NO_FID;
}
- memset((char *)rsp_hdr + 4, 0, sizeof(struct smb2_hdr) + 2);
+ memset((char *)rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
rsp_hdr->Command = rcv_hdr->Command;
@@ -433,7 +431,7 @@ static void init_chained_smb2_rsp(struct ksmbd_work *work)
*/
bool is_chained_smb2_message(struct ksmbd_work *work)
{
- struct smb2_hdr *hdr = work->request_buf;
+ struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
unsigned int len, next_cmd;
if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
@@ -484,13 +482,13 @@ bool is_chained_smb2_message(struct ksmbd_work *work)
*/
int init_smb2_rsp_hdr(struct ksmbd_work *work)
{
- struct smb2_hdr *rsp_hdr = work->response_buf;
- struct smb2_hdr *rcv_hdr = work->request_buf;
+ struct smb2_hdr *rsp_hdr = smb2_get_msg(work->response_buf);
+ struct smb2_hdr *rcv_hdr = smb2_get_msg(work->request_buf);
struct ksmbd_conn *conn = work->conn;
memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
- rsp_hdr->smb2_buf_length =
- cpu_to_be32(smb2_hdr_size_no_buflen(conn->vals));
+ *(__be32 *)work->response_buf =
+ cpu_to_be32(conn->vals->header_size);
rsp_hdr->ProtocolId = rcv_hdr->ProtocolId;
rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
rsp_hdr->Command = rcv_hdr->Command;
@@ -523,7 +521,7 @@ int init_smb2_rsp_hdr(struct ksmbd_work *work)
*/
int smb2_allocate_rsp_buf(struct ksmbd_work *work)
{
- struct smb2_hdr *hdr = work->request_buf;
+ struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
size_t small_sz = MAX_CIFS_SMALL_BUFFER_SIZE;
size_t large_sz = small_sz + work->conn->vals->max_trans_size;
size_t sz = small_sz;
@@ -535,7 +533,7 @@ int smb2_allocate_rsp_buf(struct ksmbd_work *work)
if (cmd == SMB2_QUERY_INFO_HE) {
struct smb2_query_info_req *req;
- req = work->request_buf;
+ req = smb2_get_msg(work->request_buf);
if (req->InfoType == SMB2_O_INFO_FILE &&
(req->FileInfoClass == FILE_FULL_EA_INFORMATION ||
req->FileInfoClass == FILE_ALL_INFORMATION))
@@ -562,7 +560,7 @@ int smb2_allocate_rsp_buf(struct ksmbd_work *work)
*/
int smb2_check_user_session(struct ksmbd_work *work)
{
- struct smb2_hdr *req_hdr = work->request_buf;
+ struct smb2_hdr *req_hdr = smb2_get_msg(work->request_buf);
struct ksmbd_conn *conn = work->conn;
unsigned int cmd = conn->ops->get_cmd_val(work);
unsigned long long sess_id;
@@ -643,7 +641,7 @@ int setup_async_work(struct ksmbd_work *work, void (*fn)(void **), void **arg)
struct ksmbd_conn *conn = work->conn;
int id;
- rsp_hdr = work->response_buf;
+ rsp_hdr = smb2_get_msg(work->response_buf);
rsp_hdr->Flags |= SMB2_FLAGS_ASYNC_COMMAND;
id = ksmbd_acquire_async_msg_id(&conn->async_ida);
@@ -675,7 +673,7 @@ void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status)
{
struct smb2_hdr *rsp_hdr;
- rsp_hdr = work->response_buf;
+ rsp_hdr = smb2_get_msg(work->response_buf);
smb2_set_err_rsp(work);
rsp_hdr->Status = status;
@@ -803,11 +801,11 @@ static void build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt)
}
static void assemble_neg_contexts(struct ksmbd_conn *conn,
- struct smb2_negotiate_rsp *rsp)
+ struct smb2_negotiate_rsp *rsp,
+ void *smb2_buf_len)
{
- /* +4 is to account for the RFC1001 len field */
char *pneg_ctxt = (char *)rsp +
- le32_to_cpu(rsp->NegotiateContextOffset) + 4;
+ le32_to_cpu(rsp->NegotiateContextOffset);
int neg_ctxt_cnt = 1;
int ctxt_size;
@@ -816,7 +814,7 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt,
conn->preauth_info->Preauth_HashId);
rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt);
- inc_rfc1001_len(rsp, AUTH_GSS_PADDING);
+ inc_rfc1001_len(smb2_buf_len, AUTH_GSS_PADDING);
ctxt_size = sizeof(struct smb2_preauth_neg_context);
/* Round to 8 byte boundary */
pneg_ctxt += round_up(sizeof(struct smb2_preauth_neg_context), 8);
@@ -870,7 +868,7 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
ctxt_size += sizeof(struct smb2_signing_capabilities) + 2;
}
- inc_rfc1001_len(rsp, ctxt_size);
+ inc_rfc1001_len(smb2_buf_len, ctxt_size);
}
static __le32 decode_preauth_ctxt(struct ksmbd_conn *conn,
@@ -953,14 +951,14 @@ static void decode_sign_cap_ctxt(struct ksmbd_conn *conn,
}
static __le32 deassemble_neg_contexts(struct ksmbd_conn *conn,
- struct smb2_negotiate_req *req)
+ struct smb2_negotiate_req *req,
+ int len_of_smb)
{
/* +4 is to account for the RFC1001 len field */
- struct smb2_neg_context *pctx = (struct smb2_neg_context *)((char *)req + 4);
+ struct smb2_neg_context *pctx = (struct smb2_neg_context *)req;
int i = 0, len_of_ctxts;
int offset = le32_to_cpu(req->NegotiateContextOffset);
int neg_ctxt_cnt = le16_to_cpu(req->NegotiateContextCount);
- int len_of_smb = be32_to_cpu(req->hdr.smb2_buf_length);
__le32 status = STATUS_INVALID_PARAMETER;
ksmbd_debug(SMB, "decoding %d negotiate contexts\n", neg_ctxt_cnt);
@@ -1045,8 +1043,8 @@ static __le32 deassemble_neg_contexts(struct ksmbd_conn *conn,
int smb2_handle_negotiate(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_negotiate_req *req = work->request_buf;
- struct smb2_negotiate_rsp *rsp = work->response_buf;
+ struct smb2_negotiate_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_negotiate_rsp *rsp = smb2_get_msg(work->response_buf);
int rc = 0;
unsigned int smb2_buf_len, smb2_neg_size;
__le32 status;
@@ -1067,7 +1065,7 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
}
smb2_buf_len = get_rfc1002_len(work->request_buf);
- smb2_neg_size = offsetof(struct smb2_negotiate_req, Dialects) - 4;
+ smb2_neg_size = offsetof(struct smb2_negotiate_req, Dialects);
if (smb2_neg_size > smb2_buf_len) {
rsp->hdr.Status = STATUS_INVALID_PARAMETER;
rc = -EINVAL;
@@ -1116,7 +1114,8 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
goto err_out;
}
- status = deassemble_neg_contexts(conn, req);
+ status = deassemble_neg_contexts(conn, req,
+ get_rfc1002_len(work->request_buf));
if (status != STATUS_SUCCESS) {
pr_err("deassemble_neg_contexts error(0x%x)\n",
status);
@@ -1136,7 +1135,7 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
conn->preauth_info->Preauth_HashValue);
rsp->NegotiateContextOffset =
cpu_to_le32(OFFSET_OF_NEG_CONTEXT);
- assemble_neg_contexts(conn, rsp);
+ assemble_neg_contexts(conn, rsp, work->response_buf);
break;
case SMB302_PROT_ID:
init_smb3_02_server(conn);
@@ -1184,10 +1183,9 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
rsp->SecurityBufferOffset = cpu_to_le16(128);
rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH);
- ksmbd_copy_gss_neg_header(((char *)(&rsp->hdr) +
- sizeof(rsp->hdr.smb2_buf_length)) +
- le16_to_cpu(rsp->SecurityBufferOffset));
- inc_rfc1001_len(rsp, sizeof(struct smb2_negotiate_rsp) -
+ ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) +
+ le16_to_cpu(rsp->SecurityBufferOffset));
+ inc_rfc1001_len(work->response_buf, sizeof(struct smb2_negotiate_rsp) -
sizeof(struct smb2_hdr) - sizeof(rsp->Buffer) +
AUTH_GSS_LENGTH);
rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE;
@@ -1279,7 +1277,7 @@ static int ntlm_negotiate(struct ksmbd_work *work,
struct negotiate_message *negblob,
size_t negblob_len)
{
- struct smb2_sess_setup_rsp *rsp = work->response_buf;
+ struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
struct challenge_message *chgblob;
unsigned char *spnego_blob = NULL;
u16 spnego_blob_len;
@@ -1387,8 +1385,8 @@ static struct ksmbd_user *session_user(struct ksmbd_conn *conn,
static int ntlm_authenticate(struct ksmbd_work *work)
{
- struct smb2_sess_setup_req *req = work->request_buf;
- struct smb2_sess_setup_rsp *rsp = work->response_buf;
+ struct smb2_sess_setup_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_conn *conn = work->conn;
struct ksmbd_session *sess = work->sess;
struct channel *chann = NULL;
@@ -1411,7 +1409,7 @@ static int ntlm_authenticate(struct ksmbd_work *work)
memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len);
rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len);
kfree(spnego_blob);
- inc_rfc1001_len(rsp, spnego_blob_len - 1);
+ inc_rfc1001_len(work->response_buf, spnego_blob_len - 1);
}
user = session_user(conn, req);
@@ -1523,8 +1521,8 @@ binding_session:
#ifdef CONFIG_SMB_SERVER_KERBEROS5
static int krb5_authenticate(struct ksmbd_work *work)
{
- struct smb2_sess_setup_req *req = work->request_buf;
- struct smb2_sess_setup_rsp *rsp = work->response_buf;
+ struct smb2_sess_setup_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_conn *conn = work->conn;
struct ksmbd_session *sess = work->sess;
char *in_blob, *out_blob;
@@ -1539,8 +1537,7 @@ static int krb5_authenticate(struct ksmbd_work *work)
out_blob = (char *)&rsp->hdr.ProtocolId +
le16_to_cpu(rsp->SecurityBufferOffset);
out_len = work->response_sz -
- offsetof(struct smb2_hdr, smb2_buf_length) -
- le16_to_cpu(rsp->SecurityBufferOffset);
+ (le16_to_cpu(rsp->SecurityBufferOffset) + 4);
/* Check previous session */
prev_sess_id = le64_to_cpu(req->PreviousSessionId);
@@ -1557,7 +1554,7 @@ static int krb5_authenticate(struct ksmbd_work *work)
return -EINVAL;
}
rsp->SecurityBufferLength = cpu_to_le16(out_len);
- inc_rfc1001_len(rsp, out_len - 1);
+ inc_rfc1001_len(work->response_buf, out_len - 1);
if ((conn->sign || server_conf.enforced_signing) ||
(req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED))
@@ -1613,8 +1610,8 @@ static int krb5_authenticate(struct ksmbd_work *work)
int smb2_sess_setup(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_sess_setup_req *req = work->request_buf;
- struct smb2_sess_setup_rsp *rsp = work->response_buf;
+ struct smb2_sess_setup_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_session *sess;
struct negotiate_message *negblob;
unsigned int negblob_len, negblob_off;
@@ -1626,7 +1623,7 @@ int smb2_sess_setup(struct ksmbd_work *work)
rsp->SessionFlags = 0;
rsp->SecurityBufferOffset = cpu_to_le16(72);
rsp->SecurityBufferLength = 0;
- inc_rfc1001_len(rsp, 9);
+ inc_rfc1001_len(work->response_buf, 9);
if (!req->hdr.SessionId) {
sess = ksmbd_smb2_session_create();
@@ -1700,7 +1697,7 @@ int smb2_sess_setup(struct ksmbd_work *work)
negblob_off = le16_to_cpu(req->SecurityBufferOffset);
negblob_len = le16_to_cpu(req->SecurityBufferLength);
- if (negblob_off < (offsetof(struct smb2_sess_setup_req, Buffer) - 4) ||
+ if (negblob_off < offsetof(struct smb2_sess_setup_req, Buffer) ||
negblob_len < offsetof(struct negotiate_message, NegotiateFlags))
return -EINVAL;
@@ -1740,7 +1737,8 @@ int smb2_sess_setup(struct ksmbd_work *work)
* Note: here total size -1 is done as an
* adjustment for 0 size blob
*/
- inc_rfc1001_len(rsp, le16_to_cpu(rsp->SecurityBufferLength) - 1);
+ inc_rfc1001_len(work->response_buf,
+ le16_to_cpu(rsp->SecurityBufferLength) - 1);
} else if (negblob->MessageType == NtLmAuthenticate) {
rc = ntlm_authenticate(work);
@@ -1829,8 +1827,8 @@ out_err:
int smb2_tree_connect(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_tree_connect_req *req = work->request_buf;
- struct smb2_tree_connect_rsp *rsp = work->response_buf;
+ struct smb2_tree_connect_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_tree_connect_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_session *sess = work->sess;
char *treename = NULL, *name = NULL;
struct ksmbd_tree_conn_status status;
@@ -1895,7 +1893,7 @@ out_err1:
rsp->Reserved = 0;
/* default manual caching */
rsp->ShareFlags = SMB2_SHAREFLAG_MANUAL_CACHING;
- inc_rfc1001_len(rsp, 16);
+ inc_rfc1001_len(work->response_buf, 16);
if (!IS_ERR(treename))
kfree(treename);
@@ -2000,17 +1998,18 @@ static int smb2_create_open_flags(bool file_present, __le32 access,
*/
int smb2_tree_disconnect(struct ksmbd_work *work)
{
- struct smb2_tree_disconnect_rsp *rsp = work->response_buf;
+ struct smb2_tree_disconnect_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_session *sess = work->sess;
struct ksmbd_tree_connect *tcon = work->tcon;
rsp->StructureSize = cpu_to_le16(4);
- inc_rfc1001_len(rsp, 4);
+ inc_rfc1001_len(work->response_buf, 4);
ksmbd_debug(SMB, "request\n");
if (!tcon) {
- struct smb2_tree_disconnect_req *req = work->request_buf;
+ struct smb2_tree_disconnect_req *req =
+ smb2_get_msg(work->request_buf);
ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId);
rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED;
@@ -2032,11 +2031,11 @@ int smb2_tree_disconnect(struct ksmbd_work *work)
int smb2_session_logoff(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_logoff_rsp *rsp = work->response_buf;
+ struct smb2_logoff_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_session *sess = work->sess;
rsp->StructureSize = cpu_to_le16(4);
- inc_rfc1001_len(rsp, 4);
+ inc_rfc1001_len(work->response_buf, 4);
ksmbd_debug(SMB, "request\n");
@@ -2049,7 +2048,7 @@ int smb2_session_logoff(struct ksmbd_work *work)
ksmbd_conn_wait_idle(conn);
if (ksmbd_tree_conn_session_logoff(sess)) {
- struct smb2_logoff_req *req = work->request_buf;
+ struct smb2_logoff_req *req = smb2_get_msg(work->request_buf);
ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId);
rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED;
@@ -2076,8 +2075,8 @@ int smb2_session_logoff(struct ksmbd_work *work)
*/
static noinline int create_smb2_pipe(struct ksmbd_work *work)
{
- struct smb2_create_rsp *rsp = work->response_buf;
- struct smb2_create_req *req = work->request_buf;
+ struct smb2_create_rsp *rsp = smb2_get_msg(work->response_buf);
+ struct smb2_create_req *req = smb2_get_msg(work->request_buf);
int id;
int err;
char *name;
@@ -2115,7 +2114,7 @@ static noinline int create_smb2_pipe(struct ksmbd_work *work)
rsp->CreateContextsOffset = 0;
rsp->CreateContextsLength = 0;
- inc_rfc1001_len(rsp, 88); /* StructureSize - 1*/
+ inc_rfc1001_len(work->response_buf, 88); /* StructureSize - 1*/
kfree(name);
return 0;
@@ -2464,7 +2463,7 @@ int smb2_open(struct ksmbd_work *work)
struct ksmbd_session *sess = work->sess;
struct ksmbd_tree_connect *tcon = work->tcon;
struct smb2_create_req *req;
- struct smb2_create_rsp *rsp, *rsp_org;
+ struct smb2_create_rsp *rsp;
struct path path;
struct ksmbd_share_config *share = tcon->share_conf;
struct ksmbd_file *fp = NULL;
@@ -2490,7 +2489,6 @@ int smb2_open(struct ksmbd_work *work)
umode_t posix_mode = 0;
__le32 daccess, maximal_access = 0;
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
if (req->hdr.NextCommand && !work->next_smb2_rcv_hdr_off &&
@@ -3141,7 +3139,7 @@ int smb2_open(struct ksmbd_work *work)
rsp->CreateContextsOffset = 0;
rsp->CreateContextsLength = 0;
- inc_rfc1001_len(rsp_org, 88); /* StructureSize - 1*/
+ inc_rfc1001_len(work->response_buf, 88); /* StructureSize - 1*/
/* If lease is request send lease context response */
if (opinfo && opinfo->is_lease) {
@@ -3156,7 +3154,8 @@ int smb2_open(struct ksmbd_work *work)
create_lease_buf(rsp->Buffer, opinfo->o_lease);
le32_add_cpu(&rsp->CreateContextsLength,
conn->vals->create_lease_size);
- inc_rfc1001_len(rsp_org, conn->vals->create_lease_size);
+ inc_rfc1001_len(work->response_buf,
+ conn->vals->create_lease_size);
next_ptr = &lease_ccontext->Next;
next_off = conn->vals->create_lease_size;
}
@@ -3176,7 +3175,8 @@ int smb2_open(struct ksmbd_work *work)
le32_to_cpu(maximal_access));
le32_add_cpu(&rsp->CreateContextsLength,
conn->vals->create_mxac_size);
- inc_rfc1001_len(rsp_org, conn->vals->create_mxac_size);
+ inc_rfc1001_len(work->response_buf,
+ conn->vals->create_mxac_size);
if (next_ptr)
*next_ptr = cpu_to_le32(next_off);
next_ptr = &mxac_ccontext->Next;
@@ -3194,7 +3194,8 @@ int smb2_open(struct ksmbd_work *work)
stat.ino, tcon->id);
le32_add_cpu(&rsp->CreateContextsLength,
conn->vals->create_disk_id_size);
- inc_rfc1001_len(rsp_org, conn->vals->create_disk_id_size);
+ inc_rfc1001_len(work->response_buf,
+ conn->vals->create_disk_id_size);
if (next_ptr)
*next_ptr = cpu_to_le32(next_off);
next_ptr = &disk_id_ccontext->Next;
@@ -3208,15 +3209,15 @@ int smb2_open(struct ksmbd_work *work)
fp);
le32_add_cpu(&rsp->CreateContextsLength,
conn->vals->create_posix_size);
- inc_rfc1001_len(rsp_org, conn->vals->create_posix_size);
+ inc_rfc1001_len(work->response_buf,
+ conn->vals->create_posix_size);
if (next_ptr)
*next_ptr = cpu_to_le32(next_off);
}
if (contxt_cnt > 0) {
rsp->CreateContextsOffset =
- cpu_to_le32(offsetof(struct smb2_create_rsp, Buffer)
- - 4);
+ cpu_to_le32(offsetof(struct smb2_create_rsp, Buffer));
}
err_out:
@@ -3817,7 +3818,7 @@ int smb2_query_dir(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
struct smb2_query_directory_req *req;
- struct smb2_query_directory_rsp *rsp, *rsp_org;
+ struct smb2_query_directory_rsp *rsp;
struct ksmbd_share_config *share = work->tcon->share_conf;
struct ksmbd_file *dir_fp = NULL;
struct ksmbd_dir_info d_info;
@@ -3827,7 +3828,6 @@ int smb2_query_dir(struct ksmbd_work *work)
int buffer_sz;
struct smb2_query_dir_private query_dir_private = {NULL, };
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
if (ksmbd_override_fsids(work)) {
@@ -3948,7 +3948,7 @@ int smb2_query_dir(struct ksmbd_work *work)
rsp->OutputBufferOffset = cpu_to_le16(0);
rsp->OutputBufferLength = cpu_to_le32(0);
rsp->Buffer[0] = 0;
- inc_rfc1001_len(rsp_org, 9);
+ inc_rfc1001_len(work->response_buf, 9);
} else {
((struct file_directory_info *)
((char *)rsp->Buffer + d_info.last_entry_offset))
@@ -3957,7 +3957,7 @@ int smb2_query_dir(struct ksmbd_work *work)
rsp->StructureSize = cpu_to_le16(9);
rsp->OutputBufferOffset = cpu_to_le16(72);
rsp->OutputBufferLength = cpu_to_le32(d_info.data_count);
- inc_rfc1001_len(rsp_org, 8 + d_info.data_count);
+ inc_rfc1001_len(work->response_buf, 8 + d_info.data_count);
}
kfree(srch_ptr);
@@ -4000,26 +4000,28 @@ err_out2:
* Return: 0 on success, otherwise error
*/
static int buffer_check_err(int reqOutputBufferLength,
- struct smb2_query_info_rsp *rsp, int infoclass_size)
+ struct smb2_query_info_rsp *rsp,
+ void *rsp_org, int infoclass_size)
{
if (reqOutputBufferLength < le32_to_cpu(rsp->OutputBufferLength)) {
if (reqOutputBufferLength < infoclass_size) {
pr_err("Invalid Buffer Size Requested\n");
rsp->hdr.Status = STATUS_INFO_LENGTH_MISMATCH;
- rsp->hdr.smb2_buf_length = cpu_to_be32(sizeof(struct smb2_hdr) - 4);
+ *(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr));
return -EINVAL;
}
ksmbd_debug(SMB, "Buffer Overflow\n");
rsp->hdr.Status = STATUS_BUFFER_OVERFLOW;
- rsp->hdr.smb2_buf_length = cpu_to_be32(sizeof(struct smb2_hdr) - 4 +
+ *(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr) +
reqOutputBufferLength);
rsp->OutputBufferLength = cpu_to_le32(reqOutputBufferLength);
}
return 0;
}
-static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp)
+static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp,
+ void *rsp_org)
{
struct smb2_file_standard_info *sinfo;
@@ -4032,10 +4034,11 @@ static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp)
sinfo->Directory = 0;
rsp->OutputBufferLength =
cpu_to_le32(sizeof(struct smb2_file_standard_info));
- inc_rfc1001_len(rsp, sizeof(struct smb2_file_standard_info));
+ inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_standard_info));
}
-static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num)
+static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num,
+ void *rsp_org)
{
struct smb2_file_internal_info *file_info;
@@ -4045,12 +4048,13 @@ static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num)
file_info->IndexNumber = cpu_to_le64(num | (1ULL << 63));
rsp->OutputBufferLength =
cpu_to_le32(sizeof(struct smb2_file_internal_info));
- inc_rfc1001_len(rsp, sizeof(struct smb2_file_internal_info));
+ inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_internal_info));
}
static int smb2_get_info_file_pipe(struct ksmbd_session *sess,
struct smb2_query_info_req *req,
- struct smb2_query_info_rsp *rsp)
+ struct smb2_query_info_rsp *rsp,
+ void *rsp_org)
{
u64 id;
int rc;
@@ -4068,14 +4072,16 @@ static int smb2_get_info_file_pipe(struct ksmbd_session *sess,
switch (req->FileInfoClass) {
case FILE_STANDARD_INFORMATION:
- get_standard_info_pipe(rsp);
+ get_standard_info_pipe(rsp, rsp_org);
rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
- rsp, FILE_STANDARD_INFORMATION_SIZE);
+ rsp, rsp_org,
+ FILE_STANDARD_INFORMATION_SIZE);
break;
case FILE_INTERNAL_INFORMATION:
- get_internal_info_pipe(rsp, id);
+ get_internal_info_pipe(rsp, id, rsp_org);
rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
- rsp, FILE_INTERNAL_INFORMATION_SIZE);
+ rsp, rsp_org,
+ FILE_INTERNAL_INFORMATION_SIZE);
break;
default:
ksmbd_debug(SMB, "smb2_info_file_pipe for %u not supported\n",
@@ -4689,7 +4695,7 @@ static int find_file_posix_info(struct smb2_query_info_rsp *rsp,
static int smb2_get_info_file(struct ksmbd_work *work,
struct smb2_query_info_req *req,
- struct smb2_query_info_rsp *rsp, void *rsp_org)
+ struct smb2_query_info_rsp *rsp)
{
struct ksmbd_file *fp;
int fileinfoclass = 0;
@@ -4700,7 +4706,8 @@ static int smb2_get_info_file(struct ksmbd_work *work,
if (test_share_config_flag(work->tcon->share_conf,
KSMBD_SHARE_FLAG_PIPE)) {
/* smb2 info file called for pipe */
- return smb2_get_info_file_pipe(work->sess, req, rsp);
+ return smb2_get_info_file_pipe(work->sess, req, rsp,
+ work->response_buf);
}
if (work->next_smb2_rcv_hdr_off) {
@@ -4725,77 +4732,77 @@ static int smb2_get_info_file(struct ksmbd_work *work,
switch (fileinfoclass) {
case FILE_ACCESS_INFORMATION:
- get_file_access_info(rsp, fp, rsp_org);
+ get_file_access_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_ACCESS_INFORMATION_SIZE;
break;
case FILE_BASIC_INFORMATION:
- rc = get_file_basic_info(rsp, fp, rsp_org);
+ rc = get_file_basic_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_BASIC_INFORMATION_SIZE;
break;
case FILE_STANDARD_INFORMATION:
- get_file_standard_info(rsp, fp, rsp_org);
+ get_file_standard_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_STANDARD_INFORMATION_SIZE;
break;
case FILE_ALIGNMENT_INFORMATION:
- get_file_alignment_info(rsp, rsp_org);
+ get_file_alignment_info(rsp, work->response_buf);
file_infoclass_size = FILE_ALIGNMENT_INFORMATION_SIZE;
break;
case FILE_ALL_INFORMATION:
- rc = get_file_all_info(work, rsp, fp, rsp_org);
+ rc = get_file_all_info(work, rsp, fp, work->response_buf);
file_infoclass_size = FILE_ALL_INFORMATION_SIZE;
break;
case FILE_ALTERNATE_NAME_INFORMATION:
- get_file_alternate_info(work, rsp, fp, rsp_org);
+ get_file_alternate_info(work, rsp, fp, work->response_buf);
file_infoclass_size = FILE_ALTERNATE_NAME_INFORMATION_SIZE;
break;
case FILE_STREAM_INFORMATION:
- get_file_stream_info(work, rsp, fp, rsp_org);
+ get_file_stream_info(work, rsp, fp, work->response_buf);
file_infoclass_size = FILE_STREAM_INFORMATION_SIZE;
break;
case FILE_INTERNAL_INFORMATION:
- get_file_internal_info(rsp, fp, rsp_org);
+ get_file_internal_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_INTERNAL_INFORMATION_SIZE;
break;
case FILE_NETWORK_OPEN_INFORMATION:
- rc = get_file_network_open_info(rsp, fp, rsp_org);
+ rc = get_file_network_open_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_NETWORK_OPEN_INFORMATION_SIZE;
break;
case FILE_EA_INFORMATION:
- get_file_ea_info(rsp, rsp_org);
+ get_file_ea_info(rsp, work->response_buf);
file_infoclass_size = FILE_EA_INFORMATION_SIZE;
break;
case FILE_FULL_EA_INFORMATION:
- rc = smb2_get_ea(work, fp, req, rsp, rsp_org);
+ rc = smb2_get_ea(work, fp, req, rsp, work->response_buf);
file_infoclass_size = FILE_FULL_EA_INFORMATION_SIZE;
break;
case FILE_POSITION_INFORMATION:
- get_file_position_info(rsp, fp, rsp_org);
+ get_file_position_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_POSITION_INFORMATION_SIZE;
break;
case FILE_MODE_INFORMATION:
- get_file_mode_info(rsp, fp, rsp_org);
+ get_file_mode_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_MODE_INFORMATION_SIZE;
break;
case FILE_COMPRESSION_INFORMATION:
- get_file_compression_info(rsp, fp, rsp_org);
+ get_file_compression_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_COMPRESSION_INFORMATION_SIZE;
break;
case FILE_ATTRIBUTE_TAG_INFORMATION:
- rc = get_file_attribute_tag_info(rsp, fp, rsp_org);
+ rc = get_file_attribute_tag_info(rsp, fp, work->response_buf);
file_infoclass_size = FILE_ATTRIBUTE_TAG_INFORMATION_SIZE;
break;
case SMB_FIND_FILE_POSIX_INFO:
@@ -4803,7 +4810,7 @@ static int smb2_get_info_file(struct ksmbd_work *work,
pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n");
rc = -EOPNOTSUPP;
} else {
- rc = find_file_posix_info(rsp, fp, rsp_org);
+ rc = find_file_posix_info(rsp, fp, work->response_buf);
file_infoclass_size = sizeof(struct smb311_posix_qinfo);
}
break;
@@ -4814,7 +4821,7 @@ static int smb2_get_info_file(struct ksmbd_work *work,
}
if (!rc)
rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
- rsp,
+ rsp, work->response_buf,
file_infoclass_size);
ksmbd_fd_put(work, fp);
return rc;
@@ -4822,7 +4829,7 @@ static int smb2_get_info_file(struct ksmbd_work *work,
static int smb2_get_info_filesystem(struct ksmbd_work *work,
struct smb2_query_info_req *req,
- struct smb2_query_info_rsp *rsp, void *rsp_org)
+ struct smb2_query_info_rsp *rsp)
{
struct ksmbd_session *sess = work->sess;
struct ksmbd_conn *conn = sess->conn;
@@ -4858,7 +4865,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->DeviceType = cpu_to_le32(stfs.f_type);
info->DeviceCharacteristics = cpu_to_le32(0x00000020);
rsp->OutputBufferLength = cpu_to_le32(8);
- inc_rfc1001_len(rsp_org, 8);
+ inc_rfc1001_len(work->response_buf, 8);
fs_infoclass_size = FS_DEVICE_INFORMATION_SIZE;
break;
}
@@ -4884,7 +4891,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->FileSystemNameLen = cpu_to_le32(len);
sz = sizeof(struct filesystem_attribute_info) - 2 + len;
rsp->OutputBufferLength = cpu_to_le32(sz);
- inc_rfc1001_len(rsp_org, sz);
+ inc_rfc1001_len(work->response_buf, sz);
fs_infoclass_size = FS_ATTRIBUTE_INFORMATION_SIZE;
break;
}
@@ -4912,7 +4919,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->Reserved = 0;
sz = sizeof(struct filesystem_vol_info) - 2 + len;
rsp->OutputBufferLength = cpu_to_le32(sz);
- inc_rfc1001_len(rsp_org, sz);
+ inc_rfc1001_len(work->response_buf, sz);
fs_infoclass_size = FS_VOLUME_INFORMATION_SIZE;
break;
}
@@ -4926,7 +4933,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->SectorsPerAllocationUnit = cpu_to_le32(1);
info->BytesPerSector = cpu_to_le32(stfs.f_bsize);
rsp->OutputBufferLength = cpu_to_le32(24);
- inc_rfc1001_len(rsp_org, 24);
+ inc_rfc1001_len(work->response_buf, 24);
fs_infoclass_size = FS_SIZE_INFORMATION_SIZE;
break;
}
@@ -4943,7 +4950,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->SectorsPerAllocationUnit = cpu_to_le32(1);
info->BytesPerSector = cpu_to_le32(stfs.f_bsize);
rsp->OutputBufferLength = cpu_to_le32(32);
- inc_rfc1001_len(rsp_org, 32);
+ inc_rfc1001_len(work->response_buf, 32);
fs_infoclass_size = FS_FULL_SIZE_INFORMATION_SIZE;
break;
}
@@ -4964,7 +4971,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->extended_info.rel_date = 0;
memcpy(info->extended_info.version_string, "1.1.0", strlen("1.1.0"));
rsp->OutputBufferLength = cpu_to_le32(64);
- inc_rfc1001_len(rsp_org, 64);
+ inc_rfc1001_len(work->response_buf, 64);
fs_infoclass_size = FS_OBJECT_ID_INFORMATION_SIZE;
break;
}
@@ -4985,7 +4992,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->ByteOffsetForSectorAlignment = 0;
info->ByteOffsetForPartitionAlignment = 0;
rsp->OutputBufferLength = cpu_to_le32(28);
- inc_rfc1001_len(rsp_org, 28);
+ inc_rfc1001_len(work->response_buf, 28);
fs_infoclass_size = FS_SECTOR_SIZE_INFORMATION_SIZE;
break;
}
@@ -5007,7 +5014,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->DefaultQuotaLimit = cpu_to_le64(SMB2_NO_FID);
info->Padding = 0;
rsp->OutputBufferLength = cpu_to_le32(48);
- inc_rfc1001_len(rsp_org, 48);
+ inc_rfc1001_len(work->response_buf, 48);
fs_infoclass_size = FS_CONTROL_INFORMATION_SIZE;
break;
}
@@ -5028,7 +5035,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info->TotalFileNodes = cpu_to_le64(stfs.f_files);
info->FreeFileNodes = cpu_to_le64(stfs.f_ffree);
rsp->OutputBufferLength = cpu_to_le32(56);
- inc_rfc1001_len(rsp_org, 56);
+ inc_rfc1001_len(work->response_buf, 56);
fs_infoclass_size = FS_POSIX_INFORMATION_SIZE;
}
break;
@@ -5038,7 +5045,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
return -EOPNOTSUPP;
}
rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
- rsp,
+ rsp, work->response_buf,
fs_infoclass_size);
path_put(&path);
return rc;
@@ -5046,7 +5053,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
static int smb2_get_info_sec(struct ksmbd_work *work,
struct smb2_query_info_req *req,
- struct smb2_query_info_rsp *rsp, void *rsp_org)
+ struct smb2_query_info_rsp *rsp)
{
struct ksmbd_file *fp;
struct user_namespace *user_ns;
@@ -5073,7 +5080,7 @@ static int smb2_get_info_sec(struct ksmbd_work *work,
secdesclen = sizeof(struct smb_ntsd);
rsp->OutputBufferLength = cpu_to_le32(secdesclen);
- inc_rfc1001_len(rsp_org, secdesclen);
+ inc_rfc1001_len(work->response_buf, secdesclen);
return 0;
}
@@ -5115,7 +5122,7 @@ static int smb2_get_info_sec(struct ksmbd_work *work,
return rc;
rsp->OutputBufferLength = cpu_to_le32(secdesclen);
- inc_rfc1001_len(rsp_org, secdesclen);
+ inc_rfc1001_len(work->response_buf, secdesclen);
return 0;
}
@@ -5128,10 +5135,9 @@ static int smb2_get_info_sec(struct ksmbd_work *work,
int smb2_query_info(struct ksmbd_work *work)
{
struct smb2_query_info_req *req;
- struct smb2_query_info_rsp *rsp, *rsp_org;
+ struct smb2_query_info_rsp *rsp;
int rc = 0;
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
ksmbd_debug(SMB, "GOT query info request\n");
@@ -5139,15 +5145,15 @@ int smb2_query_info(struct ksmbd_work *work)
switch (req->InfoType) {
case SMB2_O_INFO_FILE:
ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n");
- rc = smb2_get_info_file(work, req, rsp, (void *)rsp_org);
+ rc = smb2_get_info_file(work, req, rsp);
break;
case SMB2_O_INFO_FILESYSTEM:
ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILESYSTEM\n");
- rc = smb2_get_info_filesystem(work, req, rsp, (void *)rsp_org);
+ rc = smb2_get_info_filesystem(work, req, rsp);
break;
case SMB2_O_INFO_SECURITY:
ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n");
- rc = smb2_get_info_sec(work, req, rsp, (void *)rsp_org);
+ rc = smb2_get_info_sec(work, req, rsp);
break;
default:
ksmbd_debug(SMB, "InfoType %d not supported yet\n",
@@ -5172,7 +5178,7 @@ int smb2_query_info(struct ksmbd_work *work)
}
rsp->StructureSize = cpu_to_le16(9);
rsp->OutputBufferOffset = cpu_to_le16(72);
- inc_rfc1001_len(rsp_org, 8);
+ inc_rfc1001_len(work->response_buf, 8);
return 0;
}
@@ -5185,8 +5191,8 @@ int smb2_query_info(struct ksmbd_work *work)
static noinline int smb2_close_pipe(struct ksmbd_work *work)
{
u64 id;
- struct smb2_close_req *req = work->request_buf;
- struct smb2_close_rsp *rsp = work->response_buf;
+ struct smb2_close_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_close_rsp *rsp = smb2_get_msg(work->response_buf);
id = le64_to_cpu(req->VolatileFileId);
ksmbd_session_rpc_close(work->sess, id);
@@ -5201,7 +5207,7 @@ static noinline int smb2_close_pipe(struct ksmbd_work *work)
rsp->AllocationSize = 0;
rsp->EndOfFile = 0;
rsp->Attributes = 0;
- inc_rfc1001_len(rsp, 60);
+ inc_rfc1001_len(work->response_buf, 60);
return 0;
}
@@ -5217,14 +5223,12 @@ int smb2_close(struct ksmbd_work *work)
u64 sess_id;
struct smb2_close_req *req;
struct smb2_close_rsp *rsp;
- struct smb2_close_rsp *rsp_org;
struct ksmbd_conn *conn = work->conn;
struct ksmbd_file *fp;
struct inode *inode;
u64 time;
int err = 0;
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
if (test_share_config_flag(work->tcon->share_conf,
@@ -5314,7 +5318,7 @@ out:
rsp->hdr.Status = STATUS_FILE_CLOSED;
smb2_set_err_rsp(work);
} else {
- inc_rfc1001_len(rsp_org, 60);
+ inc_rfc1001_len(work->response_buf, 60);
}
return 0;
@@ -5328,11 +5332,11 @@ out:
*/
int smb2_echo(struct ksmbd_work *work)
{
- struct smb2_echo_rsp *rsp = work->response_buf;
+ struct smb2_echo_rsp *rsp = smb2_get_msg(work->response_buf);
rsp->StructureSize = cpu_to_le16(4);
rsp->Reserved = 0;
- inc_rfc1001_len(rsp, 4);
+ inc_rfc1001_len(work->response_buf, 4);
return 0;
}
@@ -5951,14 +5955,13 @@ static int smb2_set_info_sec(struct ksmbd_file *fp, int addition_info,
int smb2_set_info(struct ksmbd_work *work)
{
struct smb2_set_info_req *req;
- struct smb2_set_info_rsp *rsp, *rsp_org;
+ struct smb2_set_info_rsp *rsp;
struct ksmbd_file *fp;
int rc = 0;
unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID;
ksmbd_debug(SMB, "Received set info request\n");
- rsp_org = work->response_buf;
if (work->next_smb2_rcv_hdr_off) {
req = ksmbd_req_buf_next(work);
rsp = ksmbd_resp_buf_next(work);
@@ -5969,8 +5972,8 @@ int smb2_set_info(struct ksmbd_work *work)
pid = work->compound_pfid;
}
} else {
- req = work->request_buf;
- rsp = work->response_buf;
+ req = smb2_get_msg(work->request_buf);
+ rsp = smb2_get_msg(work->response_buf);
}
if (!has_file_id(id)) {
@@ -6010,7 +6013,7 @@ int smb2_set_info(struct ksmbd_work *work)
goto err_out;
rsp->StructureSize = cpu_to_le16(2);
- inc_rfc1001_len(rsp_org, 2);
+ inc_rfc1001_len(work->response_buf, 2);
ksmbd_fd_put(work, fp);
return 0;
@@ -6050,12 +6053,12 @@ static noinline int smb2_read_pipe(struct ksmbd_work *work)
int nbytes = 0, err;
u64 id;
struct ksmbd_rpc_command *rpc_resp;
- struct smb2_read_req *req = work->request_buf;
- struct smb2_read_rsp *rsp = work->response_buf;
+ struct smb2_read_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_read_rsp *rsp = smb2_get_msg(work->response_buf);
id = le64_to_cpu(req->VolatileFileId);
- inc_rfc1001_len(rsp, 16);
+ inc_rfc1001_len(work->response_buf, 16);
rpc_resp = ksmbd_rpc_read(work->sess, id);
if (rpc_resp) {
if (rpc_resp->flags != KSMBD_RPC_OK) {
@@ -6074,7 +6077,7 @@ static noinline int smb2_read_pipe(struct ksmbd_work *work)
rpc_resp->payload_sz);
nbytes = rpc_resp->payload_sz;
- work->resp_hdr_sz = get_rfc1002_len(rsp) + 4;
+ work->resp_hdr_sz = get_rfc1002_len(work->response_buf) + 4;
work->aux_payload_sz = nbytes;
kvfree(rpc_resp);
}
@@ -6085,7 +6088,7 @@ static noinline int smb2_read_pipe(struct ksmbd_work *work)
rsp->DataLength = cpu_to_le32(nbytes);
rsp->DataRemaining = 0;
rsp->Reserved2 = 0;
- inc_rfc1001_len(rsp, nbytes);
+ inc_rfc1001_len(work->response_buf, nbytes);
return 0;
out:
@@ -6135,14 +6138,13 @@ int smb2_read(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
struct smb2_read_req *req;
- struct smb2_read_rsp *rsp, *rsp_org;
+ struct smb2_read_rsp *rsp;
struct ksmbd_file *fp;
loff_t offset;
size_t length, mincount;
ssize_t nbytes = 0, remain_bytes = 0;
int err = 0;
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
if (test_share_config_flag(work->tcon->share_conf,
@@ -6224,10 +6226,10 @@ int smb2_read(struct ksmbd_work *work)
rsp->DataLength = cpu_to_le32(nbytes);
rsp->DataRemaining = cpu_to_le32(remain_bytes);
rsp->Reserved2 = 0;
- inc_rfc1001_len(rsp_org, 16);
- work->resp_hdr_sz = get_rfc1002_len(rsp_org) + 4;
+ inc_rfc1001_len(work->response_buf, 16);
+ work->resp_hdr_sz = get_rfc1002_len(work->response_buf) + 4;
work->aux_payload_sz = nbytes;
- inc_rfc1001_len(rsp_org, nbytes);
+ inc_rfc1001_len(work->response_buf, nbytes);
ksmbd_fd_put(work, fp);
return 0;
@@ -6262,8 +6264,8 @@ out:
*/
static noinline int smb2_write_pipe(struct ksmbd_work *work)
{
- struct smb2_write_req *req = work->request_buf;
- struct smb2_write_rsp *rsp = work->response_buf;
+ struct smb2_write_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_write_rsp *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_rpc_command *rpc_resp;
u64 id = 0;
int err = 0, ret = 0;
@@ -6274,13 +6276,14 @@ static noinline int smb2_write_pipe(struct ksmbd_work *work)
id = le64_to_cpu(req->VolatileFileId);
if (le16_to_cpu(req->DataOffset) ==
- (offsetof(struct smb2_write_req, Buffer) - 4)) {
+ offsetof(struct smb2_write_req, Buffer)) {
data_buf = (char *)&req->Buffer[0];
} else {
- if ((u64)le16_to_cpu(req->DataOffset) + length > get_rfc1002_len(req)) {
+ if ((u64)le16_to_cpu(req->DataOffset) + length >
+ get_rfc1002_len(work->request_buf)) {
pr_err("invalid write data offset %u, smb_len %u\n",
le16_to_cpu(req->DataOffset),
- get_rfc1002_len(req));
+ get_rfc1002_len(work->request_buf));
err = -EINVAL;
goto out;
}
@@ -6312,7 +6315,7 @@ static noinline int smb2_write_pipe(struct ksmbd_work *work)
rsp->DataLength = cpu_to_le32(length);
rsp->DataRemaining = 0;
rsp->Reserved2 = 0;
- inc_rfc1001_len(rsp, 16);
+ inc_rfc1001_len(work->response_buf, 16);
return 0;
out:
if (err) {
@@ -6380,7 +6383,7 @@ static ssize_t smb2_write_rdma_channel(struct ksmbd_work *work,
int smb2_write(struct ksmbd_work *work)
{
struct smb2_write_req *req;
- struct smb2_write_rsp *rsp, *rsp_org;
+ struct smb2_write_rsp *rsp;
struct ksmbd_file *fp = NULL;
loff_t offset;
size_t length;
@@ -6389,7 +6392,6 @@ int smb2_write(struct ksmbd_work *work)
bool writethrough = false;
int err = 0;
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
if (test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_PIPE)) {
@@ -6432,13 +6434,14 @@ int smb2_write(struct ksmbd_work *work)
if (req->Channel != SMB2_CHANNEL_RDMA_V1 &&
req->Channel != SMB2_CHANNEL_RDMA_V1_INVALIDATE) {
if (le16_to_cpu(req->DataOffset) ==
- (offsetof(struct smb2_write_req, Buffer) - 4)) {
+ offsetof(struct smb2_write_req, Buffer)) {
data_buf = (char *)&req->Buffer[0];
} else {
- if ((u64)le16_to_cpu(req->DataOffset) + length > get_rfc1002_len(req)) {
+ if ((u64)le16_to_cpu(req->DataOffset) + length >
+ get_rfc1002_len(work->request_buf)) {
pr_err("invalid write data offset %u, smb_len %u\n",
le16_to_cpu(req->DataOffset),
- get_rfc1002_len(req));
+ get_rfc1002_len(work->request_buf));
err = -EINVAL;
goto out;
}
@@ -6476,7 +6479,7 @@ int smb2_write(struct ksmbd_work *work)
rsp->DataLength = cpu_to_le32(nbytes);
rsp->DataRemaining = 0;
rsp->Reserved2 = 0;
- inc_rfc1001_len(rsp_org, 16);
+ inc_rfc1001_len(work->response_buf, 16);
ksmbd_fd_put(work, fp);
return 0;
@@ -6510,10 +6513,9 @@ out:
int smb2_flush(struct ksmbd_work *work)
{
struct smb2_flush_req *req;
- struct smb2_flush_rsp *rsp, *rsp_org;
+ struct smb2_flush_rsp *rsp;
int err;
- rsp_org = work->response_buf;
WORK_BUFFERS(work, req, rsp);
ksmbd_debug(SMB, "SMB2_FLUSH called for fid %llu\n",
@@ -6527,7 +6529,7 @@ int smb2_flush(struct ksmbd_work *work)
rsp->StructureSize = cpu_to_le16(4);
rsp->Reserved = 0;
- inc_rfc1001_len(rsp_org, 4);
+ inc_rfc1001_len(work->response_buf, 4);
return 0;
out:
@@ -6548,7 +6550,7 @@ out:
int smb2_cancel(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_hdr *hdr = work->request_buf;
+ struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
struct smb2_hdr *chdr;
struct ksmbd_work *cancel_work = NULL;
int canceled = 0;
@@ -6563,7 +6565,7 @@ int smb2_cancel(struct ksmbd_work *work)
spin_lock(&conn->request_lock);
list_for_each_entry(cancel_work, command_list,
async_request_entry) {
- chdr = cancel_work->request_buf;
+ chdr = smb2_get_msg(cancel_work->request_buf);
if (cancel_work->async_id !=
le64_to_cpu(hdr->Id.AsyncId))
@@ -6582,7 +6584,7 @@ int smb2_cancel(struct ksmbd_work *work)
spin_lock(&conn->request_lock);
list_for_each_entry(cancel_work, command_list, request_entry) {
- chdr = cancel_work->request_buf;
+ chdr = smb2_get_msg(cancel_work->request_buf);
if (chdr->MessageId != hdr->MessageId ||
cancel_work == work)
@@ -6717,8 +6719,8 @@ static inline bool lock_defer_pending(struct file_lock *fl)
*/
int smb2_lock(struct ksmbd_work *work)
{
- struct smb2_lock_req *req = work->request_buf;
- struct smb2_lock_rsp *rsp = work->response_buf;
+ struct smb2_lock_req *req = smb2_get_msg(work->request_buf);
+ struct smb2_lock_rsp *rsp = smb2_get_msg(work->response_buf);
struct smb2_lock_element *lock_ele;
struct ksmbd_file *fp = NULL;
struct file_lock *flock = NULL;
@@ -7025,7 +7027,7 @@ skip:
ksmbd_debug(SMB, "successful in taking lock\n");
rsp->hdr.Status = STATUS_SUCCESS;
rsp->Reserved = 0;
- inc_rfc1001_len(rsp, 4);
+ inc_rfc1001_len(work->response_buf, 4);
ksmbd_fd_put(work, fp);
return 0;
@@ -7498,13 +7500,12 @@ static int fsctl_request_resume_key(struct ksmbd_work *work,
int smb2_ioctl(struct ksmbd_work *work)
{
struct smb2_ioctl_req *req;
- struct smb2_ioctl_rsp *rsp, *rsp_org;
+ struct smb2_ioctl_rsp *rsp;
unsigned int cnt_code, nbytes = 0, out_buf_len, in_buf_len;
u64 id = KSMBD_NO_FID;
struct ksmbd_conn *conn = work->conn;
int ret = 0;
- rsp_org = work->response_buf;
if (work->next_smb2_rcv_hdr_off) {
req = ksmbd_req_buf_next(work);
rsp = ksmbd_resp_buf_next(work);
@@ -7514,8 +7515,8 @@ int smb2_ioctl(struct ksmbd_work *work)
id = work->compound_fid;
}
} else {
- req = work->request_buf;
- rsp = work->response_buf;
+ req = smb2_get_msg(work->request_buf);
+ rsp = smb2_get_msg(work->response_buf);
}
if (!has_file_id(id))
@@ -7795,7 +7796,7 @@ dup_ext_out:
rsp->Reserved = cpu_to_le16(0);
rsp->Flags = cpu_to_le32(0);
rsp->Reserved2 = cpu_to_le32(0);
- inc_rfc1001_len(rsp_org, 48 + nbytes);
+ inc_rfc1001_len(work->response_buf, 48 + nbytes);
return 0;
@@ -7822,8 +7823,8 @@ out:
*/
static void smb20_oplock_break_ack(struct ksmbd_work *work)
{
- struct smb2_oplock_break *req = work->request_buf;
- struct smb2_oplock_break *rsp = work->response_buf;
+ struct smb2_oplock_break *req = smb2_get_msg(work->request_buf);
+ struct smb2_oplock_break *rsp = smb2_get_msg(work->response_buf);
struct ksmbd_file *fp;
struct oplock_info *opinfo = NULL;
__le32 err = 0;
@@ -7930,7 +7931,7 @@ static void smb20_oplock_break_ack(struct ksmbd_work *work)
rsp->Reserved2 = 0;
rsp->VolatileFid = cpu_to_le64(volatile_id);
rsp->PersistentFid = cpu_to_le64(persistent_id);
- inc_rfc1001_len(rsp, 24);
+ inc_rfc1001_len(work->response_buf, 24);
return;
err_out:
@@ -7966,8 +7967,8 @@ static int check_lease_state(struct lease *lease, __le32 req_state)
static void smb21_lease_break_ack(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_lease_ack *req = work->request_buf;
- struct smb2_lease_ack *rsp = work->response_buf;
+ struct smb2_lease_ack *req = smb2_get_msg(work->request_buf);
+ struct smb2_lease_ack *rsp = smb2_get_msg(work->response_buf);
struct oplock_info *opinfo;
__le32 err = 0;
int ret = 0;
@@ -8079,7 +8080,7 @@ static void smb21_lease_break_ack(struct ksmbd_work *work)
memcpy(rsp->LeaseKey, req->LeaseKey, 16);
rsp->LeaseState = lease_state;
rsp->LeaseDuration = 0;
- inc_rfc1001_len(rsp, 36);
+ inc_rfc1001_len(work->response_buf, 36);
return;
err_out:
@@ -8100,8 +8101,8 @@ err_out:
*/
int smb2_oplock_break(struct ksmbd_work *work)
{
- struct smb2_oplock_break *req = work->request_buf;
- struct smb2_oplock_break *rsp = work->response_buf;
+ struct smb2_oplock_break *req = smb2_get_msg(work->request_buf);
+ struct smb2_oplock_break *rsp = smb2_get_msg(work->response_buf);
switch (le16_to_cpu(req->StructureSize)) {
case OP_BREAK_STRUCT_SIZE_20:
@@ -8153,7 +8154,7 @@ int smb2_notify(struct ksmbd_work *work)
*/
bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command)
{
- struct smb2_hdr *rcv_hdr2 = work->request_buf;
+ struct smb2_hdr *rcv_hdr2 = smb2_get_msg(work->request_buf);
if ((rcv_hdr2->Flags & SMB2_FLAGS_SIGNED) &&
command != SMB2_NEGOTIATE_HE &&
@@ -8172,22 +8173,22 @@ bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command)
*/
int smb2_check_sign_req(struct ksmbd_work *work)
{
- struct smb2_hdr *hdr, *hdr_org;
+ struct smb2_hdr *hdr;
char signature_req[SMB2_SIGNATURE_SIZE];
char signature[SMB2_HMACSHA256_SIZE];
struct kvec iov[1];
size_t len;
- hdr_org = hdr = work->request_buf;
+ hdr = smb2_get_msg(work->request_buf);
if (work->next_smb2_rcv_hdr_off)
hdr = ksmbd_req_buf_next(work);
if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off)
- len = be32_to_cpu(hdr_org->smb2_buf_length);
+ len = get_rfc1002_len(work->request_buf);
else if (hdr->NextCommand)
len = le32_to_cpu(hdr->NextCommand);
else
- len = be32_to_cpu(hdr_org->smb2_buf_length) -
+ len = get_rfc1002_len(work->request_buf) -
work->next_smb2_rcv_hdr_off;
memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE);
@@ -8215,25 +8216,26 @@ int smb2_check_sign_req(struct ksmbd_work *work)
*/
void smb2_set_sign_rsp(struct ksmbd_work *work)
{
- struct smb2_hdr *hdr, *hdr_org;
+ struct smb2_hdr *hdr;
struct smb2_hdr *req_hdr;
char signature[SMB2_HMACSHA256_SIZE];
struct kvec iov[2];
size_t len;
int n_vec = 1;
- hdr_org = hdr = work->response_buf;
+ hdr = smb2_get_msg(work->response_buf);
if (work->next_smb2_rsp_hdr_off)
hdr = ksmbd_resp_buf_next(work);
req_hdr = ksmbd_req_buf_next(work);
if (!work->next_smb2_rsp_hdr_off) {
- len = get_rfc1002_len(hdr_org);
+ len = get_rfc1002_len(work->response_buf);
if (req_hdr->NextCommand)
len = ALIGN(len, 8);
} else {
- len = get_rfc1002_len(hdr_org) - work->next_smb2_rsp_hdr_off;
+ len = get_rfc1002_len(work->response_buf) -
+ work->next_smb2_rsp_hdr_off;
len = ALIGN(len, 8);
}
@@ -8269,23 +8271,23 @@ int smb3_check_sign_req(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
char *signing_key;
- struct smb2_hdr *hdr, *hdr_org;
+ struct smb2_hdr *hdr;
struct channel *chann;
char signature_req[SMB2_SIGNATURE_SIZE];
char signature[SMB2_CMACAES_SIZE];
struct kvec iov[1];
size_t len;
- hdr_org = hdr = work->request_buf;
+ hdr = smb2_get_msg(work->request_buf);
if (work->next_smb2_rcv_hdr_off)
hdr = ksmbd_req_buf_next(work);
if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off)
- len = be32_to_cpu(hdr_org->smb2_buf_length);
+ len = get_rfc1002_len(work->request_buf);
else if (hdr->NextCommand)
len = le32_to_cpu(hdr->NextCommand);
else
- len = be32_to_cpu(hdr_org->smb2_buf_length) -
+ len = get_rfc1002_len(work->request_buf) -
work->next_smb2_rcv_hdr_off;
if (le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) {
@@ -8326,8 +8328,7 @@ int smb3_check_sign_req(struct ksmbd_work *work)
void smb3_set_sign_rsp(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_hdr *req_hdr;
- struct smb2_hdr *hdr, *hdr_org;
+ struct smb2_hdr *req_hdr, *hdr;
struct channel *chann;
char signature[SMB2_CMACAES_SIZE];
struct kvec iov[2];
@@ -8335,18 +8336,19 @@ void smb3_set_sign_rsp(struct ksmbd_work *work)
size_t len;
char *signing_key;
- hdr_org = hdr = work->response_buf;
+ hdr = smb2_get_msg(work->response_buf);
if (work->next_smb2_rsp_hdr_off)
hdr = ksmbd_resp_buf_next(work);
req_hdr = ksmbd_req_buf_next(work);
if (!work->next_smb2_rsp_hdr_off) {
- len = get_rfc1002_len(hdr_org);
+ len = get_rfc1002_len(work->response_buf);
if (req_hdr->NextCommand)
len = ALIGN(len, 8);
} else {
- len = get_rfc1002_len(hdr_org) - work->next_smb2_rsp_hdr_off;
+ len = get_rfc1002_len(work->response_buf) -
+ work->next_smb2_rsp_hdr_off;
len = ALIGN(len, 8);
}
@@ -8399,7 +8401,7 @@ void smb3_preauth_hash_rsp(struct ksmbd_work *work)
if (le16_to_cpu(req->Command) == SMB2_NEGOTIATE_HE &&
conn->preauth_info)
- ksmbd_gen_preauth_integrity_hash(conn, (char *)rsp,
+ ksmbd_gen_preauth_integrity_hash(conn, work->response_buf,
conn->preauth_info->Preauth_HashValue);
if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE && sess) {
@@ -8417,7 +8419,7 @@ void smb3_preauth_hash_rsp(struct ksmbd_work *work)
if (!hash_value)
return;
}
- ksmbd_gen_preauth_integrity_hash(conn, (char *)rsp,
+ ksmbd_gen_preauth_integrity_hash(conn, work->response_buf,
hash_value);
}
}
@@ -8499,7 +8501,6 @@ int smb3_decrypt_req(struct ksmbd_work *work)
struct ksmbd_conn *conn = work->conn;
struct ksmbd_session *sess;
char *buf = work->request_buf;
- struct smb2_hdr *hdr;
unsigned int pdu_length = get_rfc1002_len(buf);
struct kvec iov[2];
int buf_data_size = pdu_length + 4 -
@@ -8534,8 +8535,7 @@ int smb3_decrypt_req(struct ksmbd_work *work)
return rc;
memmove(buf + 4, iov[1].iov_base, buf_data_size);
- hdr = (struct smb2_hdr *)buf;
- hdr->smb2_buf_length = cpu_to_be32(buf_data_size);
+ *(__be32 *)buf = cpu_to_be32(buf_data_size);
return rc;
}
@@ -8543,7 +8543,7 @@ int smb3_decrypt_req(struct ksmbd_work *work)
bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
- struct smb2_hdr *rsp = work->response_buf;
+ struct smb2_hdr *rsp = smb2_get_msg(work->response_buf);
if (conn->dialect < SMB30_PROT_ID)
return false;
diff --git a/fs/ksmbd/smb2pdu.h b/fs/ksmbd/smb2pdu.h
index ff5a2f01d34a..a70f5461bffe 100644
--- a/fs/ksmbd/smb2pdu.h
+++ b/fs/ksmbd/smb2pdu.h
@@ -130,11 +130,6 @@
cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
struct smb2_hdr {
- __be32 smb2_buf_length; /* big endian on wire */
- /*
- * length is only two or three bytes - with
- * one or two byte type preceding it that MBZ
- */
__le32 ProtocolId; /* 0xFE 'S' 'M' 'B' */
__le16 StructureSize; /* 64 */
__le16 CreditCharge; /* MBZ */
@@ -253,14 +248,14 @@ struct preauth_integrity_info {
__u8 Preauth_HashValue[PREAUTH_HASHVALUE_SIZE];
};
-/* offset is sizeof smb2_negotiate_rsp - 4 but rounded up to 8 bytes. */
+/* offset is sizeof smb2_negotiate_rsp but rounded up to 8 bytes. */
#ifdef CONFIG_SMB_SERVER_KERBEROS5
-/* sizeof(struct smb2_negotiate_rsp) - 4 =
+/* sizeof(struct smb2_negotiate_rsp) =
* header(64) + response(64) + GSS_LENGTH(96) + GSS_PADDING(0)
*/
#define OFFSET_OF_NEG_CONTEXT 0xe0
#else
-/* sizeof(struct smb2_negotiate_rsp) - 4 =
+/* sizeof(struct smb2_negotiate_rsp) =
* header(64) + response(64) + GSS_LENGTH(74) + GSS_PADDING(6)
*/
#define OFFSET_OF_NEG_CONTEXT 0xd0
@@ -1705,4 +1700,13 @@ int smb2_ioctl(struct ksmbd_work *work);
int smb2_oplock_break(struct ksmbd_work *work);
int smb2_notify(struct ksmbd_work *ksmbd_work);
+/*
+ * Get the body of the smb2 message excluding the 4 byte rfc1002 headers
+ * from request/response buffer.
+ */
+static inline void *smb2_get_msg(void *buf)
+{
+ return buf + 4;
+}
+
#endif /* _SMB2PDU_H */
diff --git a/fs/ksmbd/smb_common.c b/fs/ksmbd/smb_common.c
index e1e5a071678e..ef7f42b0290a 100644
--- a/fs/ksmbd/smb_common.c
+++ b/fs/ksmbd/smb_common.c
@@ -239,14 +239,14 @@ int ksmbd_lookup_dialect_by_id(__le16 *cli_dialects, __le16 dialects_count)
static int ksmbd_negotiate_smb_dialect(void *buf)
{
int smb_buf_length = get_rfc1002_len(buf);
- __le32 proto = ((struct smb2_hdr *)buf)->ProtocolId;
+ __le32 proto = ((struct smb2_hdr *)smb2_get_msg(buf))->ProtocolId;
if (proto == SMB2_PROTO_NUMBER) {
struct smb2_negotiate_req *req;
int smb2_neg_size =
- offsetof(struct smb2_negotiate_req, Dialects) - 4;
+ offsetof(struct smb2_negotiate_req, Dialects);
- req = (struct smb2_negotiate_req *)buf;
+ req = (struct smb2_negotiate_req *)smb2_get_msg(buf);
if (smb2_neg_size > smb_buf_length)
goto err_out;
@@ -445,11 +445,12 @@ int ksmbd_smb_negotiate_common(struct ksmbd_work *work, unsigned int command)
struct ksmbd_conn *conn = work->conn;
int ret;
- conn->dialect = ksmbd_negotiate_smb_dialect(work->request_buf);
+ conn->dialect =
+ ksmbd_negotiate_smb_dialect(work->request_buf);
ksmbd_debug(SMB, "conn->dialect 0x%x\n", conn->dialect);
if (command == SMB2_NEGOTIATE_HE) {
- struct smb2_hdr *smb2_hdr = work->request_buf;
+ struct smb2_hdr *smb2_hdr = smb2_get_msg(work->request_buf);
if (smb2_hdr->ProtocolId != SMB2_PROTO_NUMBER) {
ksmbd_debug(SMB, "Downgrade to SMB1 negotiation\n");
diff --git a/fs/ksmbd/smb_common.h b/fs/ksmbd/smb_common.h
index 6e79e7577f6b..35ca9b7d9979 100644
--- a/fs/ksmbd/smb_common.h
+++ b/fs/ksmbd/smb_common.h
@@ -477,12 +477,6 @@ struct smb_version_cmds {
int (*proc)(struct ksmbd_work *swork);
};
-static inline size_t
-smb2_hdr_size_no_buflen(struct smb_version_values *vals)
-{
- return vals->header_size - 4;
-}
-
int ksmbd_min_protocol(void);
int ksmbd_max_protocol(void);
diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c
index 6330dfc302ff..7e57cbb0bb35 100644
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -484,7 +484,7 @@ static int smb_direct_check_recvmsg(struct smb_direct_recvmsg *recvmsg)
struct smb_direct_data_transfer *req =
(struct smb_direct_data_transfer *)recvmsg->packet;
struct smb2_hdr *hdr = (struct smb2_hdr *)(recvmsg->packet
- + le32_to_cpu(req->data_offset) - 4);
+ + le32_to_cpu(req->data_offset));
ksmbd_debug(RDMA,
"CreditGranted: %u, CreditRequested: %u, DataLength: %u, RemainingDataLength: %u, SMB: %x, Command: %u\n",
le16_to_cpu(req->credits_granted),
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 19:44:17 +0000