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7 cifs/smb3 fixes, mostly refactoring, but also a mount fix, a debugging improvement, and a reconnect fix for stable 

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Merge tag '5.16-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:

 - reconnect fix for stable

 - minor mount option fix

 - debugging improvement for (TCP) connection issues

 - refactoring of common code to help ksmbd

* tag '5.16-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: add dynamic trace points for socket connection
  cifs: Move SMB2_Create definitions to the shared area
  cifs: Move more definitions into the shared area
  cifs: move NEGOTIATE_PROTOCOL definitions out into the common area
  cifs: Create a new shared file holding smb2 pdu definitions
  cifs: add mount parameter tcpnodelay
  cifs: To match file servers, make sure the server hostname matches
This commit is contained in:
Linus Torvalds 2021-11-06 16:47:53 -07:00
parent 2acda7549e d7171cd1ac
commit b5013d084e
15 changed files with 1299 additions and 1091 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/cifs/cifsfs.c
View File

@ -38,7 +38,6 @@
#include <linux/key-type.h>
#include "cifs_spnego.h"
#include "fscache.h"
#include "smb2pdu.h"
#ifdef CONFIG_CIFS_DFS_UPCALL
#include "dfs_cache.h"
#endif

3
fs/cifs/cifsglob.h
View File

@ -20,6 +20,7 @@
#include <crypto/internal/hash.h>
#include <linux/scatterlist.h>
#include <uapi/linux/cifs/cifs_mount.h>
#include "../smbfs_common/smb2pdu.h"
#include "smb2pdu.h"
#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
@ -776,7 +777,7 @@ revert_current_mid(struct TCP_Server_Info *server, const unsigned int val)
static inline void
revert_current_mid_from_hdr(struct TCP_Server_Info *server,
const struct smb2_sync_hdr *shdr)
const struct smb2_hdr *shdr)
{
unsigned int num = le16_to_cpu(shdr->CreditCharge);

26
fs/cifs/connect.c
View File

@ -677,7 +677,7 @@ dequeue_mid(struct mid_q_entry *mid, bool malformed)
static unsigned int
smb2_get_credits_from_hdr(char *buffer, struct TCP_Server_Info *server)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buffer;
struct smb2_hdr *shdr = (struct smb2_hdr *)buffer;
/*
* SMB1 does not use credits.
@ -794,7 +794,6 @@ static void clean_demultiplex_info(struct TCP_Server_Info *server)
*/
}
kfree(server->hostname);
kfree(server);
length = atomic_dec_return(&tcpSesAllocCount);
@ -878,7 +877,7 @@ cifs_handle_standard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
static void
smb2_add_credits_from_hdr(char *buffer, struct TCP_Server_Info *server)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buffer;
struct smb2_hdr *shdr = (struct smb2_hdr *)buffer;
int scredits, in_flight;
/*
@ -1235,6 +1234,9 @@ static int match_server(struct TCP_Server_Info *server, struct smb3_fs_context *
if (!net_eq(cifs_net_ns(server), current->nsproxy->net_ns))
return 0;
if (strcasecmp(server->hostname, ctx->server_hostname))
return 0;
if (!match_address(server, addr,
(struct sockaddr *)&ctx->srcaddr))
return 0;
@ -1336,6 +1338,7 @@ cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect)
kfree(server->session_key.response);
server->session_key.response = NULL;
server->session_key.len = 0;
kfree(server->hostname);
task = xchg(&server->tsk, NULL);
if (task)
@ -1361,14 +1364,15 @@ cifs_get_tcp_session(struct smb3_fs_context *ctx)
goto out_err;
}
tcp_ses->hostname = kstrdup(ctx->server_hostname, GFP_KERNEL);
if (!tcp_ses->hostname) {
rc = -ENOMEM;
goto out_err;
}
tcp_ses->ops = ctx->ops;
tcp_ses->vals = ctx->vals;
cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns));
tcp_ses->hostname = extract_hostname(ctx->UNC);
if (IS_ERR(tcp_ses->hostname)) {
rc = PTR_ERR(tcp_ses->hostname);
goto out_err_crypto_release;
}
tcp_ses->conn_id = atomic_inc_return(&tcpSesNextId);
tcp_ses->noblockcnt = ctx->rootfs;
@ -1497,8 +1501,7 @@ out_err_crypto_release:
out_err:
if (tcp_ses) {
if (!IS_ERR(tcp_ses->hostname))
kfree(tcp_ses->hostname);
kfree(tcp_ses->hostname);
if (tcp_ses->ssocket)
sock_release(tcp_ses->ssocket);
kfree(tcp_ses);
@ -2646,11 +2649,12 @@ generic_ip_connect(struct TCP_Server_Info *server)
rc = 0;
if (rc < 0) {
cifs_dbg(FYI, "Error %d connecting to server\n", rc);
trace_smb3_connect_err(server->hostname, server->conn_id, &server->dstaddr, rc);
sock_release(socket);
server->ssocket = NULL;
return rc;
}
trace_smb3_connect_done(server->hostname, server->conn_id, &server->dstaddr);
if (sport == htons(RFC1001_PORT))
rc = ip_rfc1001_connect(server);

16
fs/cifs/fs_context.c
View File

@ -116,6 +116,7 @@ const struct fs_parameter_spec smb3_fs_parameters[] = {
fsparam_flag("nosharesock", Opt_nosharesock),
fsparam_flag_no("persistenthandles", Opt_persistent),
fsparam_flag_no("resilienthandles", Opt_resilient),
fsparam_flag_no("tcpnodelay", Opt_tcp_nodelay),
fsparam_flag("domainauto", Opt_domainauto),
fsparam_flag("rdma", Opt_rdma),
fsparam_flag("modesid", Opt_modesid),
@ -318,6 +319,7 @@ smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx
DUP_CTX_STR(mount_options);
DUP_CTX_STR(username);
DUP_CTX_STR(password);
DUP_CTX_STR(server_hostname);
DUP_CTX_STR(UNC);
DUP_CTX_STR(source);
DUP_CTX_STR(domainname);
@ -456,6 +458,11 @@ smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx)
if (!pos)
return -EINVAL;
/* record the server hostname */
ctx->server_hostname = kstrndup(devname + 2, pos - devname - 2, GFP_KERNEL);
if (!ctx->server_hostname)
return -ENOMEM;
/* skip past delimiter */
++pos;
@ -1383,6 +1390,13 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
}
}
break;
case Opt_tcp_nodelay:
/* tcp nodelay should not usually be needed since we CORK/UNCORK the socket */
if (result.negated)
ctx->sockopt_tcp_nodelay = false;
else
ctx->sockopt_tcp_nodelay = true;
break;
case Opt_domainauto:
ctx->domainauto = true;
break;
@ -1496,6 +1510,8 @@ smb3_cleanup_fs_context_contents(struct smb3_fs_context *ctx)
ctx->username = NULL;
kfree_sensitive(ctx->password);
ctx->password = NULL;
kfree(ctx->server_hostname);
ctx->server_hostname = NULL;
kfree(ctx->UNC);
ctx->UNC = NULL;
kfree(ctx->source);

2
fs/cifs/fs_context.h
View File

@ -98,6 +98,7 @@ enum cifs_param {
Opt_nosharesock,
Opt_persistent,
Opt_resilient,
Opt_tcp_nodelay,
Opt_domainauto,
Opt_rdma,
Opt_modesid,
@ -166,6 +167,7 @@ struct smb3_fs_context {
char *password;
char *domainname;
char *source;
char *server_hostname;
char *UNC;
char *nodename;
char *iocharset; /* local code page for mapping to and from Unicode */

2
fs/cifs/misc.c
View File

@ -152,7 +152,7 @@ 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_sync_hdr);
size_t buf_size = sizeof(struct smb2_hdr);
/*
* We could use negotiated size instead of max_msgsize -

16
fs/cifs/smb2maperror.c
View File

@ -2439,14 +2439,16 @@ smb2_print_status(__le32 status)
int
map_smb2_to_linux_error(char *buf, bool log_err)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
unsigned int i;
int rc = -EIO;
__le32 smb2err = shdr->Status;
if (smb2err == 0) {
trace_smb3_cmd_done(shdr->TreeId, shdr->SessionId,
le16_to_cpu(shdr->Command), le64_to_cpu(shdr->MessageId));
trace_smb3_cmd_done(le32_to_cpu(shdr->Id.SyncId.TreeId),
le64_to_cpu(shdr->SessionId),
le16_to_cpu(shdr->Command),
le64_to_cpu(shdr->MessageId));
return 0;
}
@ -2470,8 +2472,10 @@ map_smb2_to_linux_error(char *buf, bool log_err)
cifs_dbg(FYI, "Mapping SMB2 status code 0x%08x to POSIX err %d\n",
__le32_to_cpu(smb2err), rc);
trace_smb3_cmd_err(shdr->TreeId, shdr->SessionId,
le16_to_cpu(shdr->Command),
le64_to_cpu(shdr->MessageId), le32_to_cpu(smb2err), rc);
trace_smb3_cmd_err(le32_to_cpu(shdr->Id.SyncId.TreeId),
le64_to_cpu(shdr->SessionId),
le16_to_cpu(shdr->Command),
le64_to_cpu(shdr->MessageId),
le32_to_cpu(smb2err), rc);
return rc;
}

47
fs/cifs/smb2misc.c
View File

@ -8,7 +8,6 @@
*
*/
#include <linux/ctype.h>
#include "smb2pdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "smb2proto.h"
@ -19,7 +18,7 @@
#include "nterr.h"
static int
check_smb2_hdr(struct smb2_sync_hdr *shdr, __u64 mid)
check_smb2_hdr(struct smb2_hdr *shdr, __u64 mid)
{
__u64 wire_mid = le64_to_cpu(shdr->MessageId);
@ -81,9 +80,9 @@ static const __le16 smb2_rsp_struct_sizes[NUMBER_OF_SMB2_COMMANDS] = {
/* SMB2_OPLOCK_BREAK */ cpu_to_le16(24)
};
#define SMB311_NEGPROT_BASE_SIZE (sizeof(struct smb2_sync_hdr) + sizeof(struct smb2_negotiate_rsp))
#define SMB311_NEGPROT_BASE_SIZE (sizeof(struct smb2_hdr) + sizeof(struct smb2_negotiate_rsp))
static __u32 get_neg_ctxt_len(struct smb2_sync_hdr *hdr, __u32 len,
static __u32 get_neg_ctxt_len(struct smb2_hdr *hdr, __u32 len,
__u32 non_ctxlen)
{
__u16 neg_count;
@ -135,13 +134,13 @@ static __u32 get_neg_ctxt_len(struct smb2_sync_hdr *hdr, __u32 len,
int
smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_sync_pdu *pdu = (struct smb2_sync_pdu *)shdr;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
struct smb2_pdu *pdu = (struct smb2_pdu *)shdr;
__u64 mid;
__u32 clc_len; /* calculated length */
int command;
int pdu_size = sizeof(struct smb2_sync_pdu);
int hdr_size = sizeof(struct smb2_sync_hdr);
int pdu_size = sizeof(struct smb2_pdu);
int hdr_size = sizeof(struct smb2_hdr);
/*
* Add function to do table lookup of StructureSize by command
@ -155,7 +154,7 @@ smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr)
/* decrypt frame now that it is completely read in */
spin_lock(&cifs_tcp_ses_lock);
list_for_each_entry(ses, &srvr->smb_ses_list, smb_ses_list) {
if (ses->Suid == thdr->SessionId)
if (ses->Suid == le64_to_cpu(thdr->SessionId))
break;
}
spin_unlock(&cifs_tcp_ses_lock);
@ -296,7 +295,7 @@ static const bool has_smb2_data_area[NUMBER_OF_SMB2_COMMANDS] = {
* area and the offset to it (from the beginning of the smb are also returned.
*/
char *
smb2_get_data_area_len(int *off, int *len, struct smb2_sync_hdr *shdr)
smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *shdr)
{
*off = 0;
*len = 0;
@ -401,8 +400,8 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_sync_hdr *shdr)
unsigned int
smb2_calc_size(void *buf, struct TCP_Server_Info *srvr)
{
struct smb2_sync_pdu *pdu = (struct smb2_sync_pdu *)buf;
struct smb2_sync_hdr *shdr = &pdu->sync_hdr;
struct smb2_pdu *pdu = (struct smb2_pdu *)buf;
struct smb2_hdr *shdr = &pdu->hdr;
int offset; /* the offset from the beginning of SMB to data area */
int data_length; /* the length of the variable length data area */
/* Structure Size has already been checked to make sure it is 64 */
@ -669,7 +668,7 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
cifs_dbg(FYI, "Checking for oplock break\n");
if (rsp->sync_hdr.Command != SMB2_OPLOCK_BREAK)
if (rsp->hdr.Command != SMB2_OPLOCK_BREAK)
return false;
if (rsp->StructureSize !=
@ -816,25 +815,25 @@ smb2_handle_cancelled_close(struct cifs_tcon *tcon, __u64 persistent_fid,
int
smb2_handle_cancelled_mid(struct mid_q_entry *mid, struct TCP_Server_Info *server)
{
struct smb2_sync_hdr *sync_hdr = mid->resp_buf;
struct smb2_hdr *hdr = mid->resp_buf;
struct smb2_create_rsp *rsp = mid->resp_buf;
struct cifs_tcon *tcon;
int rc;
if ((mid->optype & CIFS_CP_CREATE_CLOSE_OP) || sync_hdr->Command != SMB2_CREATE ||
sync_hdr->Status != STATUS_SUCCESS)
if ((mid->optype & CIFS_CP_CREATE_CLOSE_OP) || hdr->Command != SMB2_CREATE ||
hdr->Status != STATUS_SUCCESS)
return 0;
tcon = smb2_find_smb_tcon(server, sync_hdr->SessionId,
sync_hdr->TreeId);
tcon = smb2_find_smb_tcon(server, le64_to_cpu(hdr->SessionId),
le32_to_cpu(hdr->Id.SyncId.TreeId));
if (!tcon)
return -ENOENT;
rc = __smb2_handle_cancelled_cmd(tcon,
le16_to_cpu(sync_hdr->Command),
le64_to_cpu(sync_hdr->MessageId),
rsp->PersistentFileId,
rsp->VolatileFileId);
le16_to_cpu(hdr->Command),
le64_to_cpu(hdr->MessageId),
le64_to_cpu(rsp->PersistentFileId),
le64_to_cpu(rsp->VolatileFileId));
if (rc)
cifs_put_tcon(tcon);
@ -856,10 +855,10 @@ smb311_update_preauth_hash(struct cifs_ses *ses, struct kvec *iov, int nvec)
{
int i, rc;
struct sdesc *d;
struct smb2_sync_hdr *hdr;
struct smb2_hdr *hdr;
struct TCP_Server_Info *server = cifs_ses_server(ses);
hdr = (struct smb2_sync_hdr *)iov[0].iov_base;
hdr = (struct smb2_hdr *)iov[0].iov_base;
/* neg prot are always taken */
if (hdr->Command == SMB2_NEGOTIATE)
goto ok;

73
fs/cifs/smb2ops.c
View File

@ -325,7 +325,7 @@ static struct mid_q_entry *
__smb2_find_mid(struct TCP_Server_Info *server, char *buf, bool dequeue)
{
struct mid_q_entry *mid;
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
__u64 wire_mid = le64_to_cpu(shdr->MessageId);
if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) {
@ -367,11 +367,11 @@ static void
smb2_dump_detail(void *buf, struct TCP_Server_Info *server)
{
#ifdef CONFIG_CIFS_DEBUG2
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
cifs_server_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId,
shdr->ProcessId);
shdr->Id.SyncId.ProcessId);
cifs_server_dbg(VFS, "smb buf %p len %u\n", buf,
server->ops->calc_smb_size(buf, server));
#endif
@ -885,10 +885,10 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
atomic_inc(&tcon->num_remote_opens);
o_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base;
oparms.fid->persistent_fid = o_rsp->PersistentFileId;
oparms.fid->volatile_fid = o_rsp->VolatileFileId;
oparms.fid->persistent_fid = le64_to_cpu(o_rsp->PersistentFileId);
oparms.fid->volatile_fid = le64_to_cpu(o_rsp->VolatileFileId);
#ifdef CONFIG_CIFS_DEBUG2
oparms.fid->mid = le64_to_cpu(o_rsp->sync_hdr.MessageId);
oparms.fid->mid = le64_to_cpu(o_rsp->hdr.MessageId);
#endif /* CIFS_DEBUG2 */
tcon->crfid.tcon = tcon;
@ -2391,12 +2391,12 @@ again:
/* If the open failed there is nothing to do */
op_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base;
if (op_rsp == NULL || op_rsp->sync_hdr.Status != STATUS_SUCCESS) {
if (op_rsp == NULL || op_rsp->hdr.Status != STATUS_SUCCESS) {
cifs_dbg(FYI, "query_dir_first: open failed rc=%d\n", rc);
goto qdf_free;
}
fid->persistent_fid = op_rsp->PersistentFileId;
fid->volatile_fid = op_rsp->VolatileFileId;
fid->persistent_fid = le64_to_cpu(op_rsp->PersistentFileId);
fid->volatile_fid = le64_to_cpu(op_rsp->VolatileFileId);
/* Anything else than ENODATA means a genuine error */
if (rc && rc != -ENODATA) {
@ -2410,7 +2410,7 @@ again:
atomic_inc(&tcon->num_remote_opens);
qd_rsp = (struct smb2_query_directory_rsp *)rsp_iov[1].iov_base;
if (qd_rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) {
if (qd_rsp->hdr.Status == STATUS_NO_MORE_FILES) {
trace_smb3_query_dir_done(xid, fid->persistent_fid,
tcon->tid, tcon->ses->Suid, 0, 0);
srch_inf->endOfSearch = true;
@ -2462,7 +2462,7 @@ smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
static bool
smb2_is_status_pending(char *buf, struct TCP_Server_Info *server)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
int scredits, in_flight;
if (shdr->Status != STATUS_PENDING)
@ -2489,13 +2489,14 @@ smb2_is_status_pending(char *buf, struct TCP_Server_Info *server)
static bool
smb2_is_session_expired(char *buf)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED &&
shdr->Status != STATUS_USER_SESSION_DELETED)
return false;
trace_smb3_ses_expired(shdr->TreeId, shdr->SessionId,
trace_smb3_ses_expired(le32_to_cpu(shdr->Id.SyncId.TreeId),
le64_to_cpu(shdr->SessionId),
le16_to_cpu(shdr->Command),
le64_to_cpu(shdr->MessageId));
cifs_dbg(FYI, "Session expired or deleted\n");
@ -2506,7 +2507,7 @@ smb2_is_session_expired(char *buf)
static bool
smb2_is_status_io_timeout(char *buf)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
if (shdr->Status == STATUS_IO_TIMEOUT)
return true;
@ -2517,7 +2518,7 @@ smb2_is_status_io_timeout(char *buf)
static void
smb2_is_network_name_deleted(char *buf, struct TCP_Server_Info *server)
{
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
struct list_head *tmp, *tmp1;
struct cifs_ses *ses;
struct cifs_tcon *tcon;
@ -2530,7 +2531,7 @@ smb2_is_network_name_deleted(char *buf, struct TCP_Server_Info *server)
ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
list_for_each(tmp1, &ses->tcon_list) {
tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);
if (tcon->tid == shdr->TreeId) {
if (tcon->tid == le32_to_cpu(shdr->Id.SyncId.TreeId)) {
tcon->need_reconnect = true;
spin_unlock(&cifs_tcp_ses_lock);
pr_warn_once("Server share %s deleted.\n",
@ -2558,9 +2559,9 @@ smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
void
smb2_set_related(struct smb_rqst *rqst)
{
struct smb2_sync_hdr *shdr;
struct smb2_hdr *shdr;
shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base);
shdr = (struct smb2_hdr *)(rqst->rq_iov[0].iov_base);
if (shdr == NULL) {
cifs_dbg(FYI, "shdr NULL in smb2_set_related\n");
return;
@ -2573,13 +2574,13 @@ char smb2_padding[7] = {0, 0, 0, 0, 0, 0, 0};
void
smb2_set_next_command(struct cifs_tcon *tcon, struct smb_rqst *rqst)
{
struct smb2_sync_hdr *shdr;
struct smb2_hdr *shdr;
struct cifs_ses *ses = tcon->ses;
struct TCP_Server_Info *server = ses->server;
unsigned long len = smb_rqst_len(server, rqst);
int i, num_padding;
shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base);
shdr = (struct smb2_hdr *)(rqst->rq_iov[0].iov_base);
if (shdr == NULL) {
cifs_dbg(FYI, "shdr NULL in smb2_set_next_command\n");
return;
@ -3124,7 +3125,7 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
resp_buftype, rsp_iov);
create_rsp = rsp_iov[0].iov_base;
if (create_rsp && create_rsp->sync_hdr.Status)
if (create_rsp && create_rsp->hdr.Status)
err_iov = rsp_iov[0];
ioctl_rsp = rsp_iov[1].iov_base;
@ -4369,8 +4370,8 @@ static void
fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len,
struct smb_rqst *old_rq, __le16 cipher_type)
{
struct smb2_sync_hdr *shdr =
(struct smb2_sync_hdr *)old_rq->rq_iov[0].iov_base;
struct smb2_hdr *shdr =
(struct smb2_hdr *)old_rq->rq_iov[0].iov_base;
memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr));
tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM;
@ -4496,7 +4497,7 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
struct crypto_aead *tfm;
unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key);
rc = smb2_get_enc_key(server, le64_to_cpu(tr_hdr->SessionId), enc, key);
if (rc) {
cifs_server_dbg(VFS, "%s: Could not get %scryption key\n", __func__,
enc ? "en" : "de");
@ -4788,7 +4789,7 @@ 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 = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *shdr = (struct smb2_hdr *)buf;
struct bio_vec *bvec = NULL;
struct iov_iter iter;
struct kvec iov;
@ -5117,7 +5118,7 @@ receive_encrypted_standard(struct TCP_Server_Info *server,
{
int ret, length;
char *buf = server->smallbuf;
struct smb2_sync_hdr *shdr;
struct smb2_hdr *shdr;
unsigned int pdu_length = server->pdu_size;
unsigned int buf_size;
struct mid_q_entry *mid_entry;
@ -5147,7 +5148,7 @@ receive_encrypted_standard(struct TCP_Server_Info *server,
next_is_large = server->large_buf;
one_more:
shdr = (struct smb2_sync_hdr *)buf;
shdr = (struct smb2_hdr *)buf;
if (shdr->NextCommand) {
if (next_is_large)
next_buffer = (char *)cifs_buf_get();
@ -5213,7 +5214,7 @@ smb3_receive_transform(struct TCP_Server_Info *server,
unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
if (pdu_length < sizeof(struct smb2_transform_hdr) +
sizeof(struct smb2_sync_hdr)) {
sizeof(struct smb2_hdr)) {
cifs_server_dbg(VFS, "Transform message is too small (%u)\n",
pdu_length);
cifs_reconnect(server);
@ -5246,7 +5247,7 @@ smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid)
static int
smb2_next_header(char *buf)
{
struct smb2_sync_hdr *hdr = (struct smb2_sync_hdr *)buf;
struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
struct smb2_transform_hdr *t_hdr = (struct smb2_transform_hdr *)buf;
if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM)
@ -5788,7 +5789,7 @@ struct smb_version_values smb20_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
@ -5809,7 +5810,7 @@ struct smb_version_values smb21_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
@ -5830,7 +5831,7 @@ struct smb_version_values smb3any_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
@ -5851,7 +5852,7 @@ struct smb_version_values smbdefault_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
@ -5872,7 +5873,7 @@ struct smb_version_values smb30_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
@ -5893,7 +5894,7 @@ struct smb_version_values smb302_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
@ -5914,7 +5915,7 @@ struct smb_version_values smb311_values = {
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_sync_hdr),
.header_size = sizeof(struct smb2_hdr),
.header_preamble_size = 0,
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,

187
fs/cifs/smb2pdu.c
View File

@ -23,7 +23,6 @@
#include <linux/uuid.h>
#include <linux/pagemap.h>
#include <linux/xattr.h>
#include "smb2pdu.h"
#include "cifsglob.h"
#include "cifsacl.h"
#include "cifsproto.h"
@ -84,7 +83,7 @@ int smb3_encryption_required(const struct cifs_tcon *tcon)
}
static void
smb2_hdr_assemble(struct smb2_sync_hdr *shdr, __le16 smb2_cmd,
smb2_hdr_assemble(struct smb2_hdr *shdr, __le16 smb2_cmd,
const struct cifs_tcon *tcon,
struct TCP_Server_Info *server)
{
@ -104,7 +103,7 @@ smb2_hdr_assemble(struct smb2_sync_hdr *shdr, __le16 smb2_cmd,
} else {
shdr->CreditRequest = cpu_to_le16(2);
}
shdr->ProcessId = cpu_to_le32((__u16)current->tgid);
shdr->Id.SyncId.ProcessId = cpu_to_le32((__u16)current->tgid);
if (!tcon)
goto out;
@ -115,10 +114,10 @@ smb2_hdr_assemble(struct smb2_sync_hdr *shdr, __le16 smb2_cmd,
shdr->CreditCharge = cpu_to_le16(1);
/* else CreditCharge MBZ */
shdr->TreeId = tcon->tid;
shdr->Id.SyncId.TreeId = cpu_to_le32(tcon->tid);
/* Uid is not converted */
if (tcon->ses)
shdr->SessionId = tcon->ses->Suid;
shdr->SessionId = cpu_to_le64(tcon->ses->Suid);
/*
* If we would set SMB2_FLAGS_DFS_OPERATIONS on open we also would have
@ -331,7 +330,7 @@ fill_small_buf(__le16 smb2_command, struct cifs_tcon *tcon,
void *buf,
unsigned int *total_len)
{
struct smb2_sync_pdu *spdu = (struct smb2_sync_pdu *)buf;
struct smb2_pdu *spdu = (struct smb2_pdu *)buf;
/* lookup word count ie StructureSize from table */
__u16 parmsize = smb2_req_struct_sizes[le16_to_cpu(smb2_command)];
@ -341,10 +340,10 @@ fill_small_buf(__le16 smb2_command, struct cifs_tcon *tcon,
*/
memset(buf, 0, 256);
smb2_hdr_assemble(&spdu->sync_hdr, smb2_command, tcon, server);
smb2_hdr_assemble(&spdu->hdr, smb2_command, tcon, server);
spdu->StructureSize2 = cpu_to_le16(parmsize);
*total_len = parmsize + sizeof(struct smb2_sync_hdr);
*total_len = parmsize + sizeof(struct smb2_hdr);
}
/*
@ -367,7 +366,7 @@ static int __smb2_plain_req_init(__le16 smb2_command, struct cifs_tcon *tcon,
}
fill_small_buf(smb2_command, tcon, server,
(struct smb2_sync_hdr *)(*request_buf),
(struct smb2_hdr *)(*request_buf),
total_len);
if (tcon != NULL) {
@ -414,8 +413,8 @@ build_preauth_ctxt(struct smb2_preauth_neg_context *pneg_ctxt)
pneg_ctxt->ContextType = SMB2_PREAUTH_INTEGRITY_CAPABILITIES;
pneg_ctxt->DataLength = cpu_to_le16(38);
pneg_ctxt->HashAlgorithmCount = cpu_to_le16(1);
pneg_ctxt->SaltLength = cpu_to_le16(SMB311_LINUX_CLIENT_SALT_SIZE);
get_random_bytes(pneg_ctxt->Salt, SMB311_LINUX_CLIENT_SALT_SIZE);
pneg_ctxt->SaltLength = cpu_to_le16(SMB311_SALT_SIZE);
get_random_bytes(pneg_ctxt->Salt, SMB311_SALT_SIZE);
pneg_ctxt->HashAlgorithms = SMB2_PREAUTH_INTEGRITY_SHA512;
}
@ -857,7 +856,7 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
if (rc)
return rc;
req->sync_hdr.SessionId = 0;
req->hdr.SessionId = 0;
memset(server->preauth_sha_hash, 0, SMB2_PREAUTH_HASH_SIZE);
memset(ses->preauth_sha_hash, 0, SMB2_PREAUTH_HASH_SIZE);
@ -1018,7 +1017,7 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
server->cipher_type = SMB2_ENCRYPTION_AES128_CCM;
security_blob = smb2_get_data_area_len(&blob_offset, &blob_length,
(struct smb2_sync_hdr *)rsp);
(struct smb2_hdr *)rsp);
/*
* See MS-SMB2 section 2.2.4: if no blob, client picks default which
* for us will be
@ -1250,23 +1249,23 @@ SMB2_sess_alloc_buffer(struct SMB2_sess_data *sess_data)
return rc;
if (sess_data->ses->binding) {
req->sync_hdr.SessionId = sess_data->ses->Suid;
req->sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
req->hdr.SessionId = cpu_to_le64(sess_data->ses->Suid);
req->hdr.Flags |= SMB2_FLAGS_SIGNED;
req->PreviousSessionId = 0;
req->Flags = SMB2_SESSION_REQ_FLAG_BINDING;
} else {
/* First session, not a reauthenticate */
req->sync_hdr.SessionId = 0;
req->hdr.SessionId = 0;
/*
* if reconnect, we need to send previous sess id
* otherwise it is 0
*/
req->PreviousSessionId = sess_data->previous_session;
req->PreviousSessionId = cpu_to_le64(sess_data->previous_session);
req->Flags = 0; /* MBZ */
}
/* enough to enable echos and oplocks and one max size write */
req->sync_hdr.CreditRequest = cpu_to_le16(130);
req->hdr.CreditRequest = cpu_to_le16(130);
/* only one of SMB2 signing flags may be set in SMB2 request */
if (server->sign)
@ -1425,7 +1424,7 @@ SMB2_auth_kerberos(struct SMB2_sess_data *sess_data)
rsp = (struct smb2_sess_setup_rsp *)sess_data->iov[0].iov_base;
/* keep session id and flags if binding */
if (!ses->binding) {
ses->Suid = rsp->sync_hdr.SessionId;
ses->Suid = le64_to_cpu(rsp->hdr.SessionId);
ses->session_flags = le16_to_cpu(rsp->SessionFlags);
}
@ -1501,7 +1500,7 @@ 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->sync_hdr.Status == STATUS_MORE_PROCESSING_REQUIRED)
rsp->hdr.Status == STATUS_MORE_PROCESSING_REQUIRED)
rc = 0;
if (rc)
@ -1523,7 +1522,7 @@ SMB2_sess_auth_rawntlmssp_negotiate(struct SMB2_sess_data *sess_data)
/* keep existing ses id and flags if binding */
if (!ses->binding) {
ses->Suid = rsp->sync_hdr.SessionId;
ses->Suid = le64_to_cpu(rsp->hdr.SessionId);
ses->session_flags = le16_to_cpu(rsp->SessionFlags);
}
@ -1558,7 +1557,7 @@ SMB2_sess_auth_rawntlmssp_authenticate(struct SMB2_sess_data *sess_data)
goto out;
req = (struct smb2_sess_setup_req *) sess_data->iov[0].iov_base;
req->sync_hdr.SessionId = ses->Suid;
req->hdr.SessionId = cpu_to_le64(ses->Suid);
rc = build_ntlmssp_auth_blob(&ntlmssp_blob, &blob_length, ses,
sess_data->nls_cp);
@ -1584,7 +1583,7 @@ SMB2_sess_auth_rawntlmssp_authenticate(struct SMB2_sess_data *sess_data)
/* keep existing ses id and flags if binding */
if (!ses->binding) {
ses->Suid = rsp->sync_hdr.SessionId;
ses->Suid = le64_to_cpu(rsp->hdr.SessionId);
ses->session_flags = le16_to_cpu(rsp->SessionFlags);
}
@ -1715,12 +1714,12 @@ SMB2_logoff(const unsigned int xid, struct cifs_ses *ses)
return rc;
/* since no tcon, smb2_init can not do this, so do here */
req->sync_hdr.SessionId = ses->Suid;
req->hdr.SessionId = cpu_to_le64(ses->Suid);
if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
flags |= CIFS_TRANSFORM_REQ;
else if (server->sign)
req->sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
req->hdr.Flags |= SMB2_FLAGS_SIGNED;
flags |= CIFS_NO_RSP_BUF;
@ -1828,14 +1827,14 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
!(ses->session_flags &
(SMB2_SESSION_FLAG_IS_GUEST|SMB2_SESSION_FLAG_IS_NULL)) &&
((ses->user_name != NULL) || (ses->sectype == Kerberos)))
req->sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
req->hdr.Flags |= SMB2_FLAGS_SIGNED;
memset(&rqst, 0, sizeof(struct smb_rqst));
rqst.rq_iov = iov;
rqst.rq_nvec = 2;
/* Need 64 for max size write so ask for more in case not there yet */
req->sync_hdr.CreditRequest = cpu_to_le16(64);
req->hdr.CreditRequest = cpu_to_le16(64);
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
@ -1871,7 +1870,7 @@ 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->sync_hdr.TreeId;
tcon->tid = le32_to_cpu(rsp->hdr.Id.SyncId.TreeId);
strlcpy(tcon->treeName, tree, sizeof(tcon->treeName));
if ((rsp->Capabilities & SMB2_SHARE_CAP_DFS) &&
@ -1892,9 +1891,8 @@ tcon_exit:
return rc;
tcon_error_exit:
if (rsp && rsp->sync_hdr.Status == STATUS_BAD_NETWORK_NAME) {
if (rsp && rsp->hdr.Status == STATUS_BAD_NETWORK_NAME)
cifs_tcon_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
}
goto tcon_exit;
}
@ -2608,7 +2606,7 @@ int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,
if (tcon->share_flags & SHI1005_FLAGS_DFS) {
int name_len;
req->sync_hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;
req->hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;
rc = alloc_path_with_tree_prefix(&copy_path, &copy_size,
&name_len,
tcon->treeName, utf16_path);
@ -2672,11 +2670,13 @@ int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,
}
rsp = (struct smb2_create_rsp *)rsp_iov.iov_base;
trace_smb3_posix_mkdir_done(xid, rsp->PersistentFileId, tcon->tid,
trace_smb3_posix_mkdir_done(xid, le64_to_cpu(rsp->PersistentFileId),
tcon->tid,
ses->Suid, CREATE_NOT_FILE,
FILE_WRITE_ATTRIBUTES);
SMB2_close(xid, tcon, rsp->PersistentFileId, rsp->VolatileFileId);
SMB2_close(xid, tcon, le64_to_cpu(rsp->PersistentFileId),
le64_to_cpu(rsp->VolatileFileId));
/* Eventually save off posix specific response info and timestaps */
@ -2740,7 +2740,7 @@ SMB2_open_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
if (tcon->share_flags & SHI1005_FLAGS_DFS) {
int name_len;
req->sync_hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;
req->hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;
rc = alloc_path_with_tree_prefix(&copy_path, &copy_size,
&name_len,
tcon->treeName, path);
@ -2943,16 +2943,17 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
}
goto creat_exit;
} else
trace_smb3_open_done(xid, rsp->PersistentFileId, tcon->tid,
trace_smb3_open_done(xid, le64_to_cpu(rsp->PersistentFileId),
tcon->tid,
ses->Suid, oparms->create_options,
oparms->desired_access);
atomic_inc(&tcon->num_remote_opens);
oparms->fid->persistent_fid = rsp->PersistentFileId;
oparms->fid->volatile_fid = rsp->VolatileFileId;
oparms->fid->persistent_fid = le64_to_cpu(rsp->PersistentFileId);
oparms->fid->volatile_fid = le64_to_cpu(rsp->VolatileFileId);
oparms->fid->access = oparms->desired_access;
#ifdef CONFIG_CIFS_DEBUG2
oparms->fid->mid = le64_to_cpu(rsp->sync_hdr.MessageId);
oparms->fid->mid = le64_to_cpu(rsp->hdr.MessageId);
#endif /* CIFS_DEBUG2 */
if (buf) {
@ -3052,7 +3053,7 @@ SMB2_ioctl_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
* response size smaller.
*/
req->MaxOutputResponse = cpu_to_le32(max_response_size);
req->sync_hdr.CreditCharge =
req->hdr.CreditCharge =
cpu_to_le16(DIV_ROUND_UP(max(indatalen, max_response_size),
SMB2_MAX_BUFFER_SIZE));
if (is_fsctl)
@ -3062,7 +3063,7 @@ SMB2_ioctl_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
/* validate negotiate request must be signed - see MS-SMB2 3.2.5.5 */
if (opcode == FSCTL_VALIDATE_NEGOTIATE_INFO)
req->sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
req->hdr.Flags |= SMB2_FLAGS_SIGNED;
return 0;
}
@ -3236,8 +3237,8 @@ SMB2_close_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
if (rc)
return rc;
req->PersistentFileId = persistent_fid;
req->VolatileFileId = volatile_fid;
req->PersistentFileId = cpu_to_le64(persistent_fid);
req->VolatileFileId = cpu_to_le64(volatile_fid);
if (query_attrs)
req->Flags = SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB;
else
@ -3600,8 +3601,8 @@ SMB2_notify_init(const unsigned int xid, struct smb_rqst *rqst,
if (rc)
return rc;
req->PersistentFileId = persistent_fid;
req->VolatileFileId = volatile_fid;
req->PersistentFileId = cpu_to_le64(persistent_fid);
req->VolatileFileId = cpu_to_le64(volatile_fid);
/* See note 354 of MS-SMB2, 64K max */
req->OutputBufferLength =
cpu_to_le32(SMB2_MAX_BUFFER_SIZE - MAX_SMB2_HDR_SIZE);
@ -3687,7 +3688,7 @@ smb2_echo_callback(struct mid_q_entry *mid)
if (mid->mid_state == MID_RESPONSE_RECEIVED
|| mid->mid_state == MID_RESPONSE_MALFORMED) {
credits.value = le16_to_cpu(rsp->sync_hdr.CreditRequest);
credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
credits.instance = server->reconnect_instance;
}
@ -3787,7 +3788,7 @@ SMB2_echo(struct TCP_Server_Info *server)
if (rc)
return rc;
req->sync_hdr.CreditRequest = cpu_to_le16(1);
req->hdr.CreditRequest = cpu_to_le16(1);
iov[0].iov_len = total_len;
iov[0].iov_base = (char *)req;
@ -3823,8 +3824,8 @@ SMB2_flush_init(const unsigned int xid, struct smb_rqst *rqst,
if (rc)
return rc;
req->PersistentFileId = persistent_fid;
req->VolatileFileId = volatile_fid;
req->PersistentFileId = cpu_to_le64(persistent_fid);
req->VolatileFileId = cpu_to_le64(volatile_fid);
iov[0].iov_base = (char *)req;
iov[0].iov_len = total_len;
@ -3890,8 +3891,8 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
unsigned int remaining_bytes, int request_type)
{
int rc = -EACCES;
struct smb2_read_plain_req *req = NULL;
struct smb2_sync_hdr *shdr;
struct smb2_read_req *req = NULL;
struct smb2_hdr *shdr;
struct TCP_Server_Info *server = io_parms->server;
rc = smb2_plain_req_init(SMB2_READ, io_parms->tcon, server,
@ -3902,11 +3903,11 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
if (server == NULL)
return -ECONNABORTED;
shdr = &req->sync_hdr;
shdr->ProcessId = cpu_to_le32(io_parms->pid);
shdr = &req->hdr;
shdr->Id.SyncId.ProcessId = cpu_to_le32(io_parms->pid);
req->PersistentFileId = io_parms->persistent_fid;
req->VolatileFileId = io_parms->volatile_fid;
req->PersistentFileId = cpu_to_le64(io_parms->persistent_fid);
req->VolatileFileId = cpu_to_le64(io_parms->volatile_fid);
req->ReadChannelInfoOffset = 0; /* reserved */
req->ReadChannelInfoLength = 0; /* reserved */
req->Channel = 0; /* reserved */
@ -3940,7 +3941,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
if (need_invalidate)
req->Channel = SMB2_CHANNEL_RDMA_V1;
req->ReadChannelInfoOffset =
cpu_to_le16(offsetof(struct smb2_read_plain_req, Buffer));
cpu_to_le16(offsetof(struct smb2_read_req, Buffer));
req->ReadChannelInfoLength =
cpu_to_le16(sizeof(struct smbd_buffer_descriptor_v1));
v1 = (struct smbd_buffer_descriptor_v1 *) &req->Buffer[0];
@ -3964,10 +3965,10 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
* Related requests use info from previous read request
* in chain.
*/
shdr->SessionId = 0xFFFFFFFFFFFFFFFF;
shdr->TreeId = 0xFFFFFFFF;
req->PersistentFileId = 0xFFFFFFFFFFFFFFFF;
req->VolatileFileId = 0xFFFFFFFFFFFFFFFF;
shdr->SessionId = cpu_to_le64(0xFFFFFFFFFFFFFFFF);
shdr->Id.SyncId.TreeId = cpu_to_le32(0xFFFFFFFF);
req->PersistentFileId = cpu_to_le64(0xFFFFFFFFFFFFFFFF);
req->VolatileFileId = cpu_to_le64(0xFFFFFFFFFFFFFFFF);
}
}
if (remaining_bytes > io_parms->length)
@ -3985,8 +3986,8 @@ smb2_readv_callback(struct mid_q_entry *mid)
struct cifs_readdata *rdata = mid->callback_data;
struct cifs_tcon *tcon = tlink_tcon(rdata->cfile->tlink);
struct TCP_Server_Info *server = rdata->server;
struct smb2_sync_hdr *shdr =
(struct smb2_sync_hdr *)rdata->iov[0].iov_base;
struct smb2_hdr *shdr =
(struct smb2_hdr *)rdata->iov[0].iov_base;
struct cifs_credits credits = { .value = 0, .instance = 0 };
struct smb_rqst rqst = { .rq_iov = &rdata->iov[1],
.rq_nvec = 1,
@ -4072,7 +4073,7 @@ smb2_async_readv(struct cifs_readdata *rdata)
{
int rc, flags = 0;
char *buf;
struct smb2_sync_hdr *shdr;
struct smb2_hdr *shdr;
struct cifs_io_parms io_parms;
struct smb_rqst rqst = { .rq_iov = rdata->iov,
.rq_nvec = 1 };
@ -4105,7 +4106,7 @@ smb2_async_readv(struct cifs_readdata *rdata)
rdata->iov[0].iov_base = buf;
rdata->iov[0].iov_len = total_len;
shdr = (struct smb2_sync_hdr *)buf;
shdr = (struct smb2_hdr *)buf;
if (rdata->credits.value > 0) {
shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(rdata->bytes,
@ -4144,7 +4145,7 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
{
struct smb_rqst rqst;
int resp_buftype, rc;
struct smb2_read_plain_req *req = NULL;
struct smb2_read_req *req = NULL;
struct smb2_read_rsp *rsp = NULL;
struct kvec iov[1];
struct kvec rsp_iov;
@ -4178,19 +4179,22 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
if (rc != -ENODATA) {
cifs_stats_fail_inc(io_parms->tcon, SMB2_READ_HE);
cifs_dbg(VFS, "Send error in read = %d\n", rc);
trace_smb3_read_err(xid, req->PersistentFileId,
trace_smb3_read_err(xid,
le64_to_cpu(req->PersistentFileId),
io_parms->tcon->tid, ses->Suid,
io_parms->offset, io_parms->length,
rc);
} else
trace_smb3_read_done(xid, req->PersistentFileId,
io_parms->tcon->tid, ses->Suid,
io_parms->offset, 0);
trace_smb3_read_done(xid,
le64_to_cpu(req->PersistentFileId),
io_parms->tcon->tid, ses->Suid,
io_parms->offset, 0);
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
cifs_small_buf_release(req);
return rc == -ENODATA ? 0 : rc;
} else
trace_smb3_read_done(xid, req->PersistentFileId,
trace_smb3_read_done(xid,
le64_to_cpu(req->PersistentFileId),
io_parms->tcon->tid, ses->Suid,
io_parms->offset, io_parms->length);
@ -4238,7 +4242,7 @@ smb2_writev_callback(struct mid_q_entry *mid)
switch (mid->mid_state) {
case MID_RESPONSE_RECEIVED:
credits.value = le16_to_cpu(rsp->sync_hdr.CreditRequest);
credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
credits.instance = server->reconnect_instance;
wdata->result = smb2_check_receive(mid, server, 0);
if (wdata->result != 0)
@ -4264,7 +4268,7 @@ smb2_writev_callback(struct mid_q_entry *mid)
wdata->result = -EAGAIN;
break;
case MID_RESPONSE_MALFORMED:
credits.value = le16_to_cpu(rsp->sync_hdr.CreditRequest);
credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
credits.instance = server->reconnect_instance;
fallthrough;
default:
@ -4311,7 +4315,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
{
int rc = -EACCES, flags = 0;
struct smb2_write_req *req = NULL;
struct smb2_sync_hdr *shdr;
struct smb2_hdr *shdr;
struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink);
struct TCP_Server_Info *server = wdata->server;
struct kvec iov[1];
@ -4329,11 +4333,11 @@ smb2_async_writev(struct cifs_writedata *wdata,
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
shdr = (struct smb2_sync_hdr *)req;
shdr->ProcessId = cpu_to_le32(wdata->cfile->pid);
shdr = (struct smb2_hdr *)req;
shdr->Id.SyncId.ProcessId = cpu_to_le32(wdata->cfile->pid);
req->PersistentFileId = wdata->cfile->fid.persistent_fid;
req->VolatileFileId = wdata->cfile->fid.volatile_fid;
req->PersistentFileId = cpu_to_le64(wdata->cfile->fid.persistent_fid);
req->VolatileFileId = cpu_to_le64(wdata->cfile->fid.volatile_fid);
req->WriteChannelInfoOffset = 0;
req->WriteChannelInfoLength = 0;
req->Channel = 0;
@ -4430,7 +4434,8 @@ smb2_async_writev(struct cifs_writedata *wdata,
wdata, flags, &wdata->credits);
if (rc) {
trace_smb3_write_err(0 /* no xid */, req->PersistentFileId,
trace_smb3_write_err(0 /* no xid */,
le64_to_cpu(req->PersistentFileId),
tcon->tid, tcon->ses->Suid, wdata->offset,
wdata->bytes, rc);
kref_put(&wdata->refcount, release);
@ -4481,10 +4486,10 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
if (smb3_encryption_required(io_parms->tcon))
flags |= CIFS_TRANSFORM_REQ;
req->sync_hdr.ProcessId = cpu_to_le32(io_parms->pid);
req->hdr.Id.SyncId.ProcessId = cpu_to_le32(io_parms->pid);
req->PersistentFileId = io_parms->persistent_fid;
req->VolatileFileId = io_parms->volatile_fid;
req->PersistentFileId = cpu_to_le64(io_parms->persistent_fid);
req->VolatileFileId = cpu_to_le64(io_parms->volatile_fid);
req->WriteChannelInfoOffset = 0;
req->WriteChannelInfoLength = 0;
req->Channel = 0;
@ -4512,7 +4517,8 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
rsp = (struct smb2_write_rsp *)rsp_iov.iov_base;
if (rc) {
trace_smb3_write_err(xid, req->PersistentFileId,
trace_smb3_write_err(xid,
le64_to_cpu(req->PersistentFileId),
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
io_parms->offset, io_parms->length, rc);
@ -4520,10 +4526,11 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
cifs_dbg(VFS, "Send error in write = %d\n", rc);
} else {
*nbytes = le32_to_cpu(rsp->DataLength);
trace_smb3_write_done(xid, req->PersistentFileId,
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
io_parms->offset, *nbytes);
trace_smb3_write_done(xid,
le64_to_cpu(req->PersistentFileId),
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
io_parms->offset, *nbytes);
}
cifs_small_buf_release(req);
@ -4866,7 +4873,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
if (rc) {
if (rc == -ENODATA &&
rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) {
rsp->hdr.Status == STATUS_NO_MORE_FILES) {
trace_smb3_query_dir_done(xid, persistent_fid,
tcon->tid, tcon->ses->Suid, index, 0);
srch_inf->endOfSearch = true;
@ -4914,7 +4921,7 @@ SMB2_set_info_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
if (rc)
return rc;
req->sync_hdr.ProcessId = cpu_to_le32(pid);
req->hdr.Id.SyncId.ProcessId = cpu_to_le32(pid);
req->InfoType = info_type;
req->FileInfoClass = info_class;
req->PersistentFileId = persistent_fid;
@ -5074,7 +5081,7 @@ SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
req->VolatileFid = volatile_fid;
req->PersistentFid = persistent_fid;
req->OplockLevel = oplock_level;
req->sync_hdr.CreditRequest = cpu_to_le16(1);
req->hdr.CreditRequest = cpu_to_le16(1);
flags |= CIFS_NO_RSP_BUF;
@ -5376,7 +5383,7 @@ smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon,
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
req->sync_hdr.ProcessId = cpu_to_le32(pid);
req->hdr.Id.SyncId.ProcessId = cpu_to_le32(pid);
req->LockCount = cpu_to_le16(num_lock);
req->PersistentFileId = persist_fid;
@ -5452,7 +5459,7 @@ SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon,
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
req->sync_hdr.CreditRequest = cpu_to_le16(1);
req->hdr.CreditRequest = cpu_to_le16(1);
req->StructureSize = cpu_to_le16(36);
total_len += 12;

919
fs/cifs/smb2pdu.h
View File

File diff suppressed because it is too large Load Diff

2
fs/cifs/smb2proto.h
View File

@ -25,7 +25,7 @@ extern int smb2_check_message(char *buf, unsigned int length,
struct TCP_Server_Info *server);
extern unsigned int smb2_calc_size(void *buf, struct TCP_Server_Info *server);
extern char *smb2_get_data_area_len(int *off, int *len,
struct smb2_sync_hdr *shdr);
struct smb2_hdr *shdr);
extern __le16 *cifs_convert_path_to_utf16(const char *from,
struct cifs_sb_info *cifs_sb);

36
fs/cifs/smb2transport.c
View File

@ -19,7 +19,6 @@
#include <linux/mempool.h>
#include <linux/highmem.h>
#include <crypto/aead.h>
#include "smb2pdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "smb2proto.h"
@ -213,14 +212,14 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server,
unsigned char smb2_signature[SMB2_HMACSHA256_SIZE];
unsigned char *sigptr = smb2_signature;
struct kvec *iov = rqst->rq_iov;
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)iov[0].iov_base;
struct smb2_hdr *shdr = (struct smb2_hdr *)iov[0].iov_base;
struct cifs_ses *ses;
struct shash_desc *shash;
struct crypto_shash *hash;
struct sdesc *sdesc = NULL;
struct smb_rqst drqst;
ses = smb2_find_smb_ses(server, shdr->SessionId);
ses = smb2_find_smb_ses(server, le64_to_cpu(shdr->SessionId));
if (!ses) {
cifs_server_dbg(VFS, "%s: Could not find session\n", __func__);
return 0;
@ -534,14 +533,14 @@ smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server,
unsigned char smb3_signature[SMB2_CMACAES_SIZE];
unsigned char *sigptr = smb3_signature;
struct kvec *iov = rqst->rq_iov;
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)iov[0].iov_base;
struct smb2_hdr *shdr = (struct smb2_hdr *)iov[0].iov_base;
struct shash_desc *shash;
struct crypto_shash *hash;
struct sdesc *sdesc = NULL;
struct smb_rqst drqst;
u8 key[SMB3_SIGN_KEY_SIZE];
rc = smb2_get_sign_key(shdr->SessionId, server, key);
rc = smb2_get_sign_key(le64_to_cpu(shdr->SessionId), server, key);
if (rc)
return 0;
@ -611,12 +610,12 @@ static int
smb2_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server)
{
int rc = 0;
struct smb2_sync_hdr *shdr;
struct smb2_hdr *shdr;
struct smb2_sess_setup_req *ssr;
bool is_binding;
bool is_signed;
shdr = (struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base;
shdr = (struct smb2_hdr *)rqst->rq_iov[0].iov_base;
ssr = (struct smb2_sess_setup_req *)shdr;
is_binding = shdr->Command == SMB2_SESSION_SETUP &&
@ -642,8 +641,8 @@ smb2_verify_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
{
unsigned int rc;
char server_response_sig[SMB2_SIGNATURE_SIZE];
struct smb2_sync_hdr *shdr =
(struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base;
struct smb2_hdr *shdr =
(struct smb2_hdr *)rqst->rq_iov[0].iov_base;
if ((shdr->Command == SMB2_NEGOTIATE) ||
(shdr->Command == SMB2_SESSION_SETUP) ||
@ -689,7 +688,7 @@ smb2_verify_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
*/
static inline void
smb2_seq_num_into_buf(struct TCP_Server_Info *server,
struct smb2_sync_hdr *shdr)
struct smb2_hdr *shdr)
{
unsigned int i, num = le16_to_cpu(shdr->CreditCharge);
@ -700,7 +699,7 @@ smb2_seq_num_into_buf(struct TCP_Server_Info *server,
}
static struct mid_q_entry *
smb2_mid_entry_alloc(const struct smb2_sync_hdr *shdr,
smb2_mid_entry_alloc(const struct smb2_hdr *shdr,
struct TCP_Server_Info *server)
{
struct mid_q_entry *temp;
@ -732,14 +731,15 @@ smb2_mid_entry_alloc(const struct smb2_sync_hdr *shdr,
atomic_inc(&midCount);
temp->mid_state = MID_REQUEST_ALLOCATED;
trace_smb3_cmd_enter(shdr->TreeId, shdr->SessionId,
le16_to_cpu(shdr->Command), temp->mid);
trace_smb3_cmd_enter(le32_to_cpu(shdr->Id.SyncId.TreeId),
le64_to_cpu(shdr->SessionId),
le16_to_cpu(shdr->Command), temp->mid);
return temp;
}
static int
smb2_get_mid_entry(struct cifs_ses *ses, struct TCP_Server_Info *server,
struct smb2_sync_hdr *shdr, struct mid_q_entry **mid)
struct smb2_hdr *shdr, struct mid_q_entry **mid)
{
if (server->tcpStatus == CifsExiting)
return -ENOENT;
@ -807,8 +807,8 @@ smb2_setup_request(struct cifs_ses *ses, struct TCP_Server_Info *server,
struct smb_rqst *rqst)
{
int rc;
struct smb2_sync_hdr *shdr =
(struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base;
struct smb2_hdr *shdr =
(struct smb2_hdr *)rqst->rq_iov[0].iov_base;
struct mid_q_entry *mid;
smb2_seq_num_into_buf(server, shdr);
@ -833,8 +833,8 @@ struct mid_q_entry *
smb2_setup_async_request(struct TCP_Server_Info *server, struct smb_rqst *rqst)
{
int rc;
struct smb2_sync_hdr *shdr =
(struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base;
struct smb2_hdr *shdr =
(struct smb2_hdr *)rqst->rq_iov[0].iov_base;
struct mid_q_entry *mid;
if (server->tcpStatus == CifsNeedNegotiate &&

71
fs/cifs/trace.h
View File

@ -11,6 +11,8 @@
#define _CIFS_TRACE_H
#include <linux/tracepoint.h>
#include <linux/net.h>
#include <linux/inet.h>
/*
* Please use this 3-part article as a reference for writing new tracepoints:
@ -854,6 +856,75 @@ DEFINE_EVENT(smb3_lease_err_class, smb3_##name, \
DEFINE_SMB3_LEASE_ERR_EVENT(lease_err);
DECLARE_EVENT_CLASS(smb3_connect_class,
TP_PROTO(char *hostname,
__u64 conn_id,
const struct __kernel_sockaddr_storage *dst_addr),
TP_ARGS(hostname, conn_id, dst_addr),
TP_STRUCT__entry(
__string(hostname, hostname)
__field(__u64, conn_id)
__array(__u8, dst_addr, sizeof(struct sockaddr_storage))
),
TP_fast_assign(
struct sockaddr_storage *pss = NULL;
__entry->conn_id = conn_id;
pss = (struct sockaddr_storage *)__entry->dst_addr;
*pss = *dst_addr;
__assign_str(hostname, hostname);
),
TP_printk("conn_id=0x%llx server=%s addr=%pISpsfc",
__entry->conn_id,
__get_str(hostname),
__entry->dst_addr)
)
#define DEFINE_SMB3_CONNECT_EVENT(name) \
DEFINE_EVENT(smb3_connect_class, smb3_##name, \
TP_PROTO(char *hostname, \
__u64 conn_id, \
const struct __kernel_sockaddr_storage *addr), \
TP_ARGS(hostname, conn_id, addr))
DEFINE_SMB3_CONNECT_EVENT(connect_done);
DECLARE_EVENT_CLASS(smb3_connect_err_class,
TP_PROTO(char *hostname, __u64 conn_id,
const struct __kernel_sockaddr_storage *dst_addr, int rc),
TP_ARGS(hostname, conn_id, dst_addr, rc),
TP_STRUCT__entry(
__string(hostname, hostname)
__field(__u64, conn_id)
__array(__u8, dst_addr, sizeof(struct sockaddr_storage))
__field(int, rc)
),
TP_fast_assign(
struct sockaddr_storage *pss = NULL;
__entry->conn_id = conn_id;
__entry->rc = rc;
pss = (struct sockaddr_storage *)__entry->dst_addr;
*pss = *dst_addr;
__assign_str(hostname, hostname);
),
TP_printk("rc=%d conn_id=0x%llx server=%s addr=%pISpsfc",
__entry->rc,
__entry->conn_id,
__get_str(hostname),
__entry->dst_addr)
)
#define DEFINE_SMB3_CONNECT_ERR_EVENT(name) \
DEFINE_EVENT(smb3_connect_err_class, smb3_##name, \
TP_PROTO(char *hostname, \
__u64 conn_id, \
const struct __kernel_sockaddr_storage *addr, \
int rc), \
TP_ARGS(hostname, conn_id, addr, rc))
DEFINE_SMB3_CONNECT_ERR_EVENT(connect_err);
DECLARE_EVENT_CLASS(smb3_reconnect_class,
TP_PROTO(__u64 currmid,
__u64 conn_id,

989
fs/smbfs_common/smb2pdu.h Normal file
View File

@ -0,0 +1,989 @@
/* SPDX-License-Identifier: LGPL-2.1 */
#ifndef _COMMON_SMB2PDU_H
#define _COMMON_SMB2PDU_H
/*
* Note that, due to trying to use names similar to the protocol specifications,
* there are many mixed case field names in the structures below. Although
* this does not match typical Linux kernel style, it is necessary to be
* able to match against the protocol specfication.
*
* SMB2 commands
* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
* (ie no useful data other than the SMB error code itself) and are marked such.
* Knowing this helps avoid response buffer allocations and copy in some cases.
*/
/* List of commands in host endian */
#define SMB2_NEGOTIATE_HE 0x0000
#define SMB2_SESSION_SETUP_HE 0x0001
#define SMB2_LOGOFF_HE 0x0002 /* trivial request/resp */
#define SMB2_TREE_CONNECT_HE 0x0003
#define SMB2_TREE_DISCONNECT_HE 0x0004 /* trivial req/resp */
#define SMB2_CREATE_HE 0x0005
#define SMB2_CLOSE_HE 0x0006
#define SMB2_FLUSH_HE 0x0007 /* trivial resp */
#define SMB2_READ_HE 0x0008
#define SMB2_WRITE_HE 0x0009
#define SMB2_LOCK_HE 0x000A
#define SMB2_IOCTL_HE 0x000B
#define SMB2_CANCEL_HE 0x000C
#define SMB2_ECHO_HE 0x000D
#define SMB2_QUERY_DIRECTORY_HE 0x000E
#define SMB2_CHANGE_NOTIFY_HE 0x000F
#define SMB2_QUERY_INFO_HE 0x0010
#define SMB2_SET_INFO_HE 0x0011
#define SMB2_OPLOCK_BREAK_HE 0x0012
/* The same list in little endian */
#define SMB2_NEGOTIATE cpu_to_le16(SMB2_NEGOTIATE_HE)
#define SMB2_SESSION_SETUP cpu_to_le16(SMB2_SESSION_SETUP_HE)
#define SMB2_LOGOFF cpu_to_le16(SMB2_LOGOFF_HE)
#define SMB2_TREE_CONNECT cpu_to_le16(SMB2_TREE_CONNECT_HE)
#define SMB2_TREE_DISCONNECT cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
#define SMB2_CREATE cpu_to_le16(SMB2_CREATE_HE)
#define SMB2_CLOSE cpu_to_le16(SMB2_CLOSE_HE)
#define SMB2_FLUSH cpu_to_le16(SMB2_FLUSH_HE)
#define SMB2_READ cpu_to_le16(SMB2_READ_HE)
#define SMB2_WRITE cpu_to_le16(SMB2_WRITE_HE)
#define SMB2_LOCK cpu_to_le16(SMB2_LOCK_HE)
#define SMB2_IOCTL cpu_to_le16(SMB2_IOCTL_HE)
#define SMB2_CANCEL cpu_to_le16(SMB2_CANCEL_HE)
#define SMB2_ECHO cpu_to_le16(SMB2_ECHO_HE)
#define SMB2_QUERY_DIRECTORY cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
#define SMB2_CHANGE_NOTIFY cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
#define SMB2_QUERY_INFO cpu_to_le16(SMB2_QUERY_INFO_HE)
#define SMB2_SET_INFO cpu_to_le16(SMB2_SET_INFO_HE)
#define SMB2_OPLOCK_BREAK cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
#define SMB2_INTERNAL_CMD cpu_to_le16(0xFFFF)
#define NUMBER_OF_SMB2_COMMANDS 0x0013
/*
* SMB2 Header Definition
*
* "MBZ" : Must be Zero
* "BB" : BugBug, Something to check/review/analyze later
* "PDU" : "Protocol Data Unit" (ie a network "frame")
*
*/
#define __SMB2_HEADER_STRUCTURE_SIZE 64
#define SMB2_HEADER_STRUCTURE_SIZE \
cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
#define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
#define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
#define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
/*
* SMB2 flag definitions
*/
#define SMB2_FLAGS_SERVER_TO_REDIR cpu_to_le32(0x00000001)
#define SMB2_FLAGS_ASYNC_COMMAND cpu_to_le32(0x00000002)
#define SMB2_FLAGS_RELATED_OPERATIONS cpu_to_le32(0x00000004)
#define SMB2_FLAGS_SIGNED cpu_to_le32(0x00000008)
#define SMB2_FLAGS_PRIORITY_MASK cpu_to_le32(0x00000070) /* SMB3.1.1 */
#define SMB2_FLAGS_DFS_OPERATIONS cpu_to_le32(0x10000000)
#define SMB2_FLAGS_REPLAY_OPERATION cpu_to_le32(0x20000000) /* SMB3 & up */
/* See MS-SMB2 section 2.2.1 */
struct smb2_hdr {
__le32 ProtocolId; /* 0xFE 'S' 'M' 'B' */
__le16 StructureSize; /* 64 */
__le16 CreditCharge; /* MBZ */
__le32 Status; /* Error from server */
__le16 Command;
__le16 CreditRequest; /* CreditResponse */
__le32 Flags;
__le32 NextCommand;
__le64 MessageId;
union {
struct {
__le32 ProcessId;
__le32 TreeId;
} __packed SyncId;
__le64 AsyncId;
} __packed Id;
__le64 SessionId;
__u8 Signature[16];
} __packed;
struct smb2_pdu {
struct smb2_hdr hdr;
__le16 StructureSize2; /* size of wct area (varies, request specific) */
} __packed;
#define SMB3_AES_CCM_NONCE 11
#define SMB3_AES_GCM_NONCE 12
/* Transform flags (for 3.0 dialect this flag indicates CCM */
#define TRANSFORM_FLAG_ENCRYPTED 0x0001
struct smb2_transform_hdr {
__le32 ProtocolId; /* 0xFD 'S' 'M' 'B' */
__u8 Signature[16];
__u8 Nonce[16];
__le32 OriginalMessageSize;
__u16 Reserved1;
__le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
__le64 SessionId;
} __packed;
/* See MS-SMB2 2.2.42 */
struct smb2_compression_transform_hdr_unchained {
__le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
__le32 OriginalCompressedSegmentSize;
__le16 CompressionAlgorithm;
__le16 Flags;
__le16 Length; /* if chained it is length, else offset */
} __packed;
/* See MS-SMB2 2.2.42.1 */
#define SMB2_COMPRESSION_FLAG_NONE 0x0000
#define SMB2_COMPRESSION_FLAG_CHAINED 0x0001
struct compression_payload_header {
__le16 CompressionAlgorithm;
__le16 Flags;
__le32 Length; /* length of compressed playload including field below if present */
/* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */
} __packed;
/* See MS-SMB2 2.2.42.2 */
struct smb2_compression_transform_hdr_chained {
__le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
__le32 OriginalCompressedSegmentSize;
/* struct compression_payload_header[] */
} __packed;
/* See MS-SMB2 2.2.42.2.2 */
struct compression_pattern_payload_v1 {
__le16 Pattern;
__le16 Reserved1;
__le16 Reserved2;
__le32 Repetitions;
} __packed;
/* See MS-SMB2 section 2.2.9.2 */
/* Context Types */
#define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
#define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
struct tree_connect_contexts {
__le16 ContextType;
__le16 DataLength;
__le32 Reserved;
__u8 Data[];
} __packed;
/* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
struct smb3_blob_data {
__le16 BlobSize;
__u8 BlobData[];
} __packed;
/* Valid values for Attr */
#define SE_GROUP_MANDATORY 0x00000001
#define SE_GROUP_ENABLED_BY_DEFAULT 0x00000002
#define SE_GROUP_ENABLED 0x00000004
#define SE_GROUP_OWNER 0x00000008
#define SE_GROUP_USE_FOR_DENY_ONLY 0x00000010
#define SE_GROUP_INTEGRITY 0x00000020
#define SE_GROUP_INTEGRITY_ENABLED 0x00000040
#define SE_GROUP_RESOURCE 0x20000000
#define SE_GROUP_LOGON_ID 0xC0000000
/* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
struct sid_array_data {
__le16 SidAttrCount;
/* SidAttrList - array of sid_attr_data structs */
} __packed;
struct luid_attr_data {
} __packed;
/*
* struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
* but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
*/
struct privilege_array_data {
__le16 PrivilegeCount;
/* array of privilege_data structs */
} __packed;
struct remoted_identity_tcon_context {
__le16 TicketType; /* must be 0x0001 */
__le16 TicketSize; /* total size of this struct */
__le16 User; /* offset to SID_ATTR_DATA struct with user info */
__le16 UserName; /* offset to null terminated Unicode username string */
__le16 Domain; /* offset to null terminated Unicode domain name */
__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
__le16 RestrictedGroups; /* similar to above */
__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
__le16 Owner; /* offset to BLOB_DATA struct */
__le16 DefaultDacl; /* offset to BLOB_DATA struct */
__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
__le16 UserClaims; /* offset to BLOB_DATA struct */
__le16 DeviceClaims; /* offset to BLOB_DATA struct */
__u8 TicketInfo[]; /* variable length buf - remoted identity data */
} __packed;
struct smb2_tree_connect_req_extension {
__le32 TreeConnectContextOffset;
__le16 TreeConnectContextCount;
__u8 Reserved[10];
__u8 PathName[]; /* variable sized array */
/* followed by array of TreeConnectContexts */
} __packed;
/* Flags/Reserved for SMB3.1.1 */
#define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
#define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
#define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
struct smb2_tree_connect_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 Flags; /* Flags in SMB3.1.1 */
__le16 PathOffset;
__le16 PathLength;
__u8 Buffer[1]; /* variable length */
} __packed;
/* Possible ShareType values */
#define SMB2_SHARE_TYPE_DISK 0x01
#define SMB2_SHARE_TYPE_PIPE 0x02
#define SMB2_SHARE_TYPE_PRINT 0x03
/*
* Possible ShareFlags - exactly one and only one of the first 4 caching flags
* must be set (any of the remaining, SHI1005, flags may be set individually
* or in combination.
*/
#define SMB2_SHAREFLAG_MANUAL_CACHING 0x00000000
#define SMB2_SHAREFLAG_AUTO_CACHING 0x00000010
#define SMB2_SHAREFLAG_VDO_CACHING 0x00000020
#define SMB2_SHAREFLAG_NO_CACHING 0x00000030
#define SHI1005_FLAGS_DFS 0x00000001
#define SHI1005_FLAGS_DFS_ROOT 0x00000002
#define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS 0x00000100
#define SHI1005_FLAGS_FORCE_SHARED_DELETE 0x00000200
#define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING 0x00000400
#define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM 0x00000800
#define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK 0x00001000
#define SHI1005_FLAGS_ENABLE_HASH_V1 0x00002000
#define SHI1005_FLAGS_ENABLE_HASH_V2 0x00004000
#define SHI1005_FLAGS_ENCRYPT_DATA 0x00008000
#define SMB2_SHAREFLAG_IDENTITY_REMOTING 0x00040000 /* 3.1.1 */
#define SMB2_SHAREFLAG_COMPRESS_DATA 0x00100000 /* 3.1.1 */
#define SHI1005_FLAGS_ALL 0x0014FF33
/* Possible share capabilities */
#define SMB2_SHARE_CAP_DFS cpu_to_le32(0x00000008) /* all dialects */
#define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
#define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */
#define SMB2_SHARE_CAP_CLUSTER cpu_to_le32(0x00000040) /* 3.0 */
#define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
#define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
struct smb2_tree_connect_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 16 */
__u8 ShareType; /* see below */
__u8 Reserved;
__le32 ShareFlags; /* see below */
__le32 Capabilities; /* see below */
__le32 MaximalAccess;
} __packed;
struct smb2_tree_disconnect_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
struct smb2_tree_disconnect_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
/*
* SMB2_NEGOTIATE_PROTOCOL See MS-SMB2 section 2.2.3
*/
/* SecurityMode flags */
#define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001
#define SMB2_NEGOTIATE_SIGNING_ENABLED_LE cpu_to_le16(0x0001)
#define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
#define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002)
#define SMB2_SEC_MODE_FLAGS_ALL 0x0003
/* Capabilities flags */
#define SMB2_GLOBAL_CAP_DFS 0x00000001
#define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */
#define SMB2_GLOBAL_CAP_LARGE_MTU 0X00000004 /* Resp only New to SMB2.1 */
#define SMB2_GLOBAL_CAP_MULTI_CHANNEL 0x00000008 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_DIRECTORY_LEASING 0x00000020 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_ENCRYPTION 0x00000040 /* New to SMB3 */
/* Internal types */
#define SMB2_NT_FIND 0x00100000
#define SMB2_LARGE_FILES 0x00200000
#define SMB2_CLIENT_GUID_SIZE 16
#define SMB2_CREATE_GUID_SIZE 16
/* Dialects */
#define SMB10_PROT_ID 0x0000 /* local only, not sent on wire w/CIFS negprot */
#define SMB20_PROT_ID 0x0202
#define SMB21_PROT_ID 0x0210
#define SMB2X_PROT_ID 0x02FF
#define SMB30_PROT_ID 0x0300
#define SMB302_PROT_ID 0x0302
#define SMB311_PROT_ID 0x0311
#define BAD_PROT_ID 0xFFFF
#define SMB311_SALT_SIZE 32
/* Hash Algorithm Types */
#define SMB2_PREAUTH_INTEGRITY_SHA512 cpu_to_le16(0x0001)
#define SMB2_PREAUTH_HASH_SIZE 64
/* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
#define SMB2_PREAUTH_INTEGRITY_CAPABILITIES cpu_to_le16(1)
#define SMB2_ENCRYPTION_CAPABILITIES cpu_to_le16(2)
#define SMB2_COMPRESSION_CAPABILITIES cpu_to_le16(3)
#define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID cpu_to_le16(5)
#define SMB2_TRANSPORT_CAPABILITIES cpu_to_le16(6)
#define SMB2_RDMA_TRANSFORM_CAPABILITIES cpu_to_le16(7)
#define SMB2_SIGNING_CAPABILITIES cpu_to_le16(8)
#define SMB2_POSIX_EXTENSIONS_AVAILABLE cpu_to_le16(0x100)
struct smb2_neg_context {
__le16 ContextType;
__le16 DataLength;
__le32 Reserved;
/* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */
} __packed;
/*
* SaltLength that the server send can be zero, so the only three required
* fields (all __le16) end up six bytes total, so the minimum context data len
* in the response is six bytes which accounts for
*
* HashAlgorithmCount, SaltLength, and 1 HashAlgorithm.
*/
#define MIN_PREAUTH_CTXT_DATA_LEN 6
struct smb2_preauth_neg_context {
__le16 ContextType; /* 1 */
__le16 DataLength;
__le32 Reserved;
__le16 HashAlgorithmCount; /* 1 */
__le16 SaltLength;
__le16 HashAlgorithms; /* HashAlgorithms[0] since only one defined */
__u8 Salt[SMB311_SALT_SIZE];
} __packed;
/* Encryption Algorithms Ciphers */
#define SMB2_ENCRYPTION_AES128_CCM cpu_to_le16(0x0001)
#define SMB2_ENCRYPTION_AES128_GCM cpu_to_le16(0x0002)
#define SMB2_ENCRYPTION_AES256_CCM cpu_to_le16(0x0003)
#define SMB2_ENCRYPTION_AES256_GCM cpu_to_le16(0x0004)
/* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
#define MIN_ENCRYPT_CTXT_DATA_LEN 4
struct smb2_encryption_neg_context {
__le16 ContextType; /* 2 */
__le16 DataLength;
__le32 Reserved;
/* CipherCount usally 2, but can be 3 when AES256-GCM enabled */
__le16 CipherCount; /* AES128-GCM and AES128-CCM by default */
__le16 Ciphers[];
} __packed;
/* See MS-SMB2 2.2.3.1.3 */
#define SMB3_COMPRESS_NONE cpu_to_le16(0x0000)
#define SMB3_COMPRESS_LZNT1 cpu_to_le16(0x0001)
#define SMB3_COMPRESS_LZ77 cpu_to_le16(0x0002)
#define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003)
/* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
#define SMB3_COMPRESS_PATTERN cpu_to_le16(0x0004) /* Pattern_V1 */
/* Compression Flags */
#define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE cpu_to_le32(0x00000000)
#define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED cpu_to_le32(0x00000001)
struct smb2_compression_capabilities_context {
__le16 ContextType; /* 3 */
__le16 DataLength;
__le32 Reserved;
__le16 CompressionAlgorithmCount;
__le16 Padding;
__le32 Flags;
__le16 CompressionAlgorithms[3];
__u16 Pad; /* Some servers require pad to DataLen multiple of 8 */
/* Check if pad needed */
} __packed;
/*
* For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
* Its struct simply contains NetName, an array of Unicode characters
*/
struct smb2_netname_neg_context {
__le16 ContextType; /* 5 */
__le16 DataLength;
__le32 Reserved;
__le16 NetName[]; /* hostname of target converted to UCS-2 */
} __packed;
/*
* For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
* and 2.2.4.1.5
*/
/* Flags */
#define SMB2_ACCEPT_TRANSFORM_LEVEL_SECURITY 0x00000001
struct smb2_transport_capabilities_context {
__le16 ContextType; /* 6 */
__le16 DataLength;
__u32 Reserved;
__le32 Flags;
__u32 Pad;
} __packed;
/*
* For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
* and 2.2.4.1.6
*/
/* RDMA Transform IDs */
#define SMB2_RDMA_TRANSFORM_NONE 0x0000
#define SMB2_RDMA_TRANSFORM_ENCRYPTION 0x0001
#define SMB2_RDMA_TRANSFORM_SIGNING 0x0002
struct smb2_rdma_transform_capabilities_context {
__le16 ContextType; /* 7 */
__le16 DataLength;
__u32 Reserved;
__le16 TransformCount;
__u16 Reserved1;
__u32 Reserved2;
__le16 RDMATransformIds[];
} __packed;
/*
* For signing capabilities context see MS-SMB2 2.2.3.1.7
* and 2.2.4.1.7
*/
/* Signing algorithms */
#define SIGNING_ALG_HMAC_SHA256 0
#define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0)
#define SIGNING_ALG_AES_CMAC 1
#define SIGNING_ALG_AES_CMAC_LE cpu_to_le16(1)
#define SIGNING_ALG_AES_GMAC 2
#define SIGNING_ALG_AES_GMAC_LE cpu_to_le16(2)
struct smb2_signing_capabilities {
__le16 ContextType; /* 8 */
__le16 DataLength;
__le32 Reserved;
__le16 SigningAlgorithmCount;
__le16 SigningAlgorithms[];
/* Followed by padding to 8 byte boundary (required by some servers) */
} __packed;
#define POSIX_CTXT_DATA_LEN 16
struct smb2_posix_neg_context {
__le16 ContextType; /* 0x100 */
__le16 DataLength;
__le32 Reserved;
__u8 Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
} __packed;
struct smb2_negotiate_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 36 */
__le16 DialectCount;
__le16 SecurityMode;
__le16 Reserved; /* MBZ */
__le32 Capabilities;
__u8 ClientGUID[SMB2_CLIENT_GUID_SIZE];
/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
__le16 NegotiateContextCount; /* SMB3.1.1 only. MBZ earlier */
__le16 Reserved2;
__le16 Dialects[];
} __packed;
struct smb2_negotiate_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 65 */
__le16 SecurityMode;
__le16 DialectRevision;
__le16 NegotiateContextCount; /* Prior to SMB3.1.1 was Reserved & MBZ */
__u8 ServerGUID[16];
__le32 Capabilities;
__le32 MaxTransactSize;
__le32 MaxReadSize;
__le32 MaxWriteSize;
__le64 SystemTime; /* MBZ */
__le64 ServerStartTime;
__le16 SecurityBufferOffset;
__le16 SecurityBufferLength;
__le32 NegotiateContextOffset; /* Pre:SMB3.1.1 was reserved/ignored */
__u8 Buffer[1]; /* variable length GSS security buffer */
} __packed;
/*
* SMB2_SESSION_SETUP See MS-SMB2 section 2.2.5
*/
/* Flags */
#define SMB2_SESSION_REQ_FLAG_BINDING 0x01
#define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA 0x04
struct smb2_sess_setup_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 25 */
__u8 Flags;
__u8 SecurityMode;
__le32 Capabilities;
__le32 Channel;
__le16 SecurityBufferOffset;
__le16 SecurityBufferLength;
__le64 PreviousSessionId;
__u8 Buffer[1]; /* variable length GSS security buffer */
} __packed;
/* Currently defined SessionFlags */
#define SMB2_SESSION_FLAG_IS_GUEST 0x0001
#define SMB2_SESSION_FLAG_IS_GUEST_LE cpu_to_le16(0x0001)
#define SMB2_SESSION_FLAG_IS_NULL 0x0002
#define SMB2_SESSION_FLAG_IS_NULL_LE cpu_to_le16(0x0002)
#define SMB2_SESSION_FLAG_ENCRYPT_DATA 0x0004
#define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
struct smb2_sess_setup_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 SessionFlags;
__le16 SecurityBufferOffset;
__le16 SecurityBufferLength;
__u8 Buffer[1]; /* variable length GSS security buffer */
} __packed;
/*
* SMB2_LOGOFF See MS-SMB2 section 2.2.7
*/
struct smb2_logoff_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
struct smb2_logoff_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
/*
* SMB2_CLOSE See MS-SMB2 section 2.2.15
*/
/* Currently defined values for close flags */
#define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB cpu_to_le16(0x0001)
struct smb2_close_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 24 */
__le16 Flags;
__le32 Reserved;
__le64 PersistentFileId; /* opaque endianness */
__le64 VolatileFileId; /* opaque endianness */
} __packed;
/*
* Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
*/
#define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
struct smb2_close_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* 60 */
__le16 Flags;
__le32 Reserved;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */
__le64 EndOfFile;
__le32 Attributes;
} __packed;
/*
* SMB2_READ See MS-SMB2 section 2.2.19
*/
/* For read request Flags field below, following flag is defined for SMB3.02 */
#define SMB2_READFLAG_READ_UNBUFFERED 0x01
#define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
/* Channel field for read and write: exactly one of following flags can be set*/
#define SMB2_CHANNEL_NONE cpu_to_le32(0x00000000)
#define SMB2_CHANNEL_RDMA_V1 cpu_to_le32(0x00000001)
#define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
#define SMB2_CHANNEL_RDMA_TRANSFORM cpu_to_le32(0x00000003)
/* SMB2 read request without RFC1001 length at the beginning */
struct smb2_read_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 49 */
__u8 Padding; /* offset from start of SMB2 header to place read */
__u8 Flags; /* MBZ unless SMB3.02 or later */
__le32 Length;
__le64 Offset;
__le64 PersistentFileId;
__le64 VolatileFileId;
__le32 MinimumCount;
__le32 Channel; /* MBZ except for SMB3 or later */
__le32 RemainingBytes;
__le16 ReadChannelInfoOffset;
__le16 ReadChannelInfoLength;
__u8 Buffer[1];
} __packed;
/* Read flags */
#define SMB2_READFLAG_RESPONSE_NONE cpu_to_le32(0x00000000)
#define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM cpu_to_le32(0x00000001)
struct smb2_read_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 17 */
__u8 DataOffset;
__u8 Reserved;
__le32 DataLength;
__le32 DataRemaining;
__le32 Flags;
__u8 Buffer[1];
} __packed;
/*
* SMB2_WRITE See MS-SMB2 section 2.2.21
*/
/* For write request Flags field below the following flags are defined: */
#define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001 /* SMB2.1 or later */
#define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002 /* SMB3.02 or later */
struct smb2_write_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 49 */
__le16 DataOffset; /* offset from start of SMB2 header to write data */
__le32 Length;
__le64 Offset;
__le64 PersistentFileId; /* opaque endianness */
__le64 VolatileFileId; /* opaque endianness */
__le32 Channel; /* MBZ unless SMB3.02 or later */
__le32 RemainingBytes;
__le16 WriteChannelInfoOffset;
__le16 WriteChannelInfoLength;
__le32 Flags;
__u8 Buffer[1];
} __packed;
struct smb2_write_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 17 */
__u8 DataOffset;
__u8 Reserved;
__le32 DataLength;
__le32 DataRemaining;
__u32 Reserved2;
__u8 Buffer[1];
} __packed;
/*
* SMB2_FLUSH See MS-SMB2 section 2.2.17
*/
struct smb2_flush_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 24 */
__le16 Reserved1;
__le32 Reserved2;
__le64 PersistentFileId;
__le64 VolatileFileId;
} __packed;
struct smb2_flush_rsp {
struct smb2_hdr hdr;
__le16 StructureSize;
__le16 Reserved;
} __packed;
/*
* SMB2_NOTIFY See MS-SMB2 section 2.2.35
*/
/* notify flags */
#define SMB2_WATCH_TREE 0x0001
/* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
#define FILE_NOTIFY_CHANGE_FILE_NAME 0x00000001
#define FILE_NOTIFY_CHANGE_DIR_NAME 0x00000002
#define FILE_NOTIFY_CHANGE_ATTRIBUTES 0x00000004
#define FILE_NOTIFY_CHANGE_SIZE 0x00000008
#define FILE_NOTIFY_CHANGE_LAST_WRITE 0x00000010
#define FILE_NOTIFY_CHANGE_LAST_ACCESS 0x00000020
#define FILE_NOTIFY_CHANGE_CREATION 0x00000040
#define FILE_NOTIFY_CHANGE_EA 0x00000080
#define FILE_NOTIFY_CHANGE_SECURITY 0x00000100
#define FILE_NOTIFY_CHANGE_STREAM_NAME 0x00000200
#define FILE_NOTIFY_CHANGE_STREAM_SIZE 0x00000400
#define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
/* SMB2 Notify Action Flags */
#define FILE_ACTION_ADDED 0x00000001
#define FILE_ACTION_REMOVED 0x00000002
#define FILE_ACTION_MODIFIED 0x00000003
#define FILE_ACTION_RENAMED_OLD_NAME 0x00000004
#define FILE_ACTION_RENAMED_NEW_NAME 0x00000005
#define FILE_ACTION_ADDED_STREAM 0x00000006
#define FILE_ACTION_REMOVED_STREAM 0x00000007
#define FILE_ACTION_MODIFIED_STREAM 0x00000008
#define FILE_ACTION_REMOVED_BY_DELETE 0x00000009
struct smb2_change_notify_req {
struct smb2_hdr hdr;
__le16 StructureSize;
__le16 Flags;
__le32 OutputBufferLength;
__le64 PersistentFileId; /* opaque endianness */
__le64 VolatileFileId; /* opaque endianness */
__le32 CompletionFilter;
__u32 Reserved;
} __packed;
struct smb2_change_notify_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 OutputBufferOffset;
__le32 OutputBufferLength;
__u8 Buffer[1]; /* array of file notify structs */
} __packed;
/*
* SMB2_CREATE See MS-SMB2 section 2.2.13
*/
/* Oplock levels */
#define SMB2_OPLOCK_LEVEL_NONE 0x00
#define SMB2_OPLOCK_LEVEL_II 0x01
#define SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08
#define SMB2_OPLOCK_LEVEL_BATCH 0x09
#define SMB2_OPLOCK_LEVEL_LEASE 0xFF
/* Non-spec internal type */
#define SMB2_OPLOCK_LEVEL_NOCHANGE 0x99
/* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
#define IL_ANONYMOUS cpu_to_le32(0x00000000)
#define IL_IDENTIFICATION cpu_to_le32(0x00000001)
#define IL_IMPERSONATION cpu_to_le32(0x00000002)
#define IL_DELEGATE cpu_to_le32(0x00000003)
/* File Attrubutes */
#define FILE_ATTRIBUTE_READONLY 0x00000001
#define FILE_ATTRIBUTE_HIDDEN 0x00000002
#define FILE_ATTRIBUTE_SYSTEM 0x00000004
#define FILE_ATTRIBUTE_DIRECTORY 0x00000010
#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
#define FILE_ATTRIBUTE_NORMAL 0x00000080
#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
#define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200
#define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400
#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
#define FILE_ATTRIBUTE_OFFLINE 0x00001000
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000
#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
#define FILE_ATTRIBUTE_INTEGRITY_STREAM 0x00008000
#define FILE_ATTRIBUTE_NO_SCRUB_DATA 0x00020000
#define FILE_ATTRIBUTE__MASK 0x00007FB7
#define FILE_ATTRIBUTE_READONLY_LE cpu_to_le32(0x00000001)
#define FILE_ATTRIBUTE_HIDDEN_LE cpu_to_le32(0x00000002)
#define FILE_ATTRIBUTE_SYSTEM_LE cpu_to_le32(0x00000004)
#define FILE_ATTRIBUTE_DIRECTORY_LE cpu_to_le32(0x00000010)
#define FILE_ATTRIBUTE_ARCHIVE_LE cpu_to_le32(0x00000020)
#define FILE_ATTRIBUTE_NORMAL_LE cpu_to_le32(0x00000080)
#define FILE_ATTRIBUTE_TEMPORARY_LE cpu_to_le32(0x00000100)
#define FILE_ATTRIBUTE_SPARSE_FILE_LE cpu_to_le32(0x00000200)
#define FILE_ATTRIBUTE_REPARSE_POINT_LE cpu_to_le32(0x00000400)
#define FILE_ATTRIBUTE_COMPRESSED_LE cpu_to_le32(0x00000800)
#define FILE_ATTRIBUTE_OFFLINE_LE cpu_to_le32(0x00001000)
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE cpu_to_le32(0x00002000)
#define FILE_ATTRIBUTE_ENCRYPTED_LE cpu_to_le32(0x00004000)
#define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE cpu_to_le32(0x00008000)
#define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE cpu_to_le32(0x00020000)
#define FILE_ATTRIBUTE_MASK_LE cpu_to_le32(0x00007FB7)
/* Desired Access Flags */
#define FILE_READ_DATA_LE cpu_to_le32(0x00000001)
#define FILE_LIST_DIRECTORY_LE cpu_to_le32(0x00000001)
#define FILE_WRITE_DATA_LE cpu_to_le32(0x00000002)
#define FILE_APPEND_DATA_LE cpu_to_le32(0x00000004)
#define FILE_ADD_SUBDIRECTORY_LE cpu_to_le32(0x00000004)
#define FILE_READ_EA_LE cpu_to_le32(0x00000008)
#define FILE_WRITE_EA_LE cpu_to_le32(0x00000010)
#define FILE_EXECUTE_LE cpu_to_le32(0x00000020)
#define FILE_DELETE_CHILD_LE cpu_to_le32(0x00000040)
#define FILE_READ_ATTRIBUTES_LE cpu_to_le32(0x00000080)
#define FILE_WRITE_ATTRIBUTES_LE cpu_to_le32(0x00000100)
#define FILE_DELETE_LE cpu_to_le32(0x00010000)
#define FILE_READ_CONTROL_LE cpu_to_le32(0x00020000)
#define FILE_WRITE_DAC_LE cpu_to_le32(0x00040000)
#define FILE_WRITE_OWNER_LE cpu_to_le32(0x00080000)
#define FILE_SYNCHRONIZE_LE cpu_to_le32(0x00100000)
#define FILE_ACCESS_SYSTEM_SECURITY_LE cpu_to_le32(0x01000000)
#define FILE_MAXIMAL_ACCESS_LE cpu_to_le32(0x02000000)
#define FILE_GENERIC_ALL_LE cpu_to_le32(0x10000000)
#define FILE_GENERIC_EXECUTE_LE cpu_to_le32(0x20000000)
#define FILE_GENERIC_WRITE_LE cpu_to_le32(0x40000000)
#define FILE_GENERIC_READ_LE cpu_to_le32(0x80000000)
#define DESIRED_ACCESS_MASK cpu_to_le32(0xF21F01FF)
#define FILE_READ_DESIRED_ACCESS_LE (FILE_READ_DATA_LE | \
FILE_READ_EA_LE | \
FILE_GENERIC_READ_LE)
#define FILE_WRITE_DESIRE_ACCESS_LE (FILE_WRITE_DATA_LE | \
FILE_APPEND_DATA_LE | \
FILE_WRITE_EA_LE | \
FILE_WRITE_ATTRIBUTES_LE | \
FILE_GENERIC_WRITE_LE)
/* ShareAccess Flags */
#define FILE_SHARE_READ_LE cpu_to_le32(0x00000001)
#define FILE_SHARE_WRITE_LE cpu_to_le32(0x00000002)
#define FILE_SHARE_DELETE_LE cpu_to_le32(0x00000004)
#define FILE_SHARE_ALL_LE cpu_to_le32(0x00000007)
/* CreateDisposition Flags */
#define FILE_SUPERSEDE_LE cpu_to_le32(0x00000000)
#define FILE_OPEN_LE cpu_to_le32(0x00000001)
#define FILE_CREATE_LE cpu_to_le32(0x00000002)
#define FILE_OPEN_IF_LE cpu_to_le32(0x00000003)
#define FILE_OVERWRITE_LE cpu_to_le32(0x00000004)
#define FILE_OVERWRITE_IF_LE cpu_to_le32(0x00000005)
#define FILE_CREATE_MASK_LE cpu_to_le32(0x00000007)
#define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
| FILE_READ_ATTRIBUTES)
#define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
#define FILE_EXEC_RIGHTS (FILE_EXECUTE)
/* CreateOptions Flags */
#define FILE_DIRECTORY_FILE_LE cpu_to_le32(0x00000001)
/* same as #define CREATE_NOT_FILE_LE cpu_to_le32(0x00000001) */
#define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002)
#define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004)
#define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
#define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040)
#define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100)
#define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200)
#define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800)
#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000)
#define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000)
#define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000)
#define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000)
#define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000)
#define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000)
#define CREATE_OPTIONS_MASK_LE cpu_to_le32(0x00FFFFFF)
#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
| FILE_READ_ATTRIBUTES_LE)
#define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
#define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
/* Create Context Values */
#define SMB2_CREATE_EA_BUFFER "ExtA" /* extended attributes */
#define SMB2_CREATE_SD_BUFFER "SecD" /* security descriptor */
#define SMB2_CREATE_DURABLE_HANDLE_REQUEST "DHnQ"
#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT "DHnC"
#define SMB2_CREATE_ALLOCATION_SIZE "AISi"
#define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
#define SMB2_CREATE_TIMEWARP_REQUEST "TWrp"
#define SMB2_CREATE_QUERY_ON_DISK_ID "QFid"
#define SMB2_CREATE_REQUEST_LEASE "RqLs"
#define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2 "DH2Q"
#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 "DH2C"
#define SMB2_CREATE_TAG_POSIX "\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
/* Flag (SMB3 open response) values */
#define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
struct create_context {
__le32 Next;
__le16 NameOffset;
__le16 NameLength;
__le16 Reserved;
__le16 DataOffset;
__le32 DataLength;
__u8 Buffer[];
} __packed;
struct smb2_create_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 57 */
__u8 SecurityFlags;
__u8 RequestedOplockLevel;
__le32 ImpersonationLevel;
__le64 SmbCreateFlags;
__le64 Reserved;
__le32 DesiredAccess;
__le32 FileAttributes;
__le32 ShareAccess;
__le32 CreateDisposition;
__le32 CreateOptions;
__le16 NameOffset;
__le16 NameLength;
__le32 CreateContextsOffset;
__le32 CreateContextsLength;
__u8 Buffer[];
} __packed;
struct smb2_create_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 89 */
__u8 OplockLevel;
__u8 Flags; /* 0x01 if reparse point */
__le32 CreateAction;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 AllocationSize;
__le64 EndofFile;
__le32 FileAttributes;
__le32 Reserved2;
__le64 PersistentFileId;
__le64 VolatileFileId;
__le32 CreateContextsOffset;
__le32 CreateContextsLength;
__u8 Buffer[1];
} __packed;
#endif /* _COMMON_SMB2PDU_H */