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Diffstat (limited to 'fs/cifs/cifsglob.h')
-rw-r--r--fs/cifs/cifsglob.h196
1 files changed, 146 insertions, 50 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 4f07f6fbe49..de6aed8c78e 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -28,6 +28,7 @@
#include "cifsacl.h"
#include <crypto/internal/hash.h>
#include <linux/scatterlist.h>
+#include <uapi/linux/cifs/cifs_mount.h>
#ifdef CONFIG_CIFS_SMB2
#include "smb2pdu.h"
#endif
@@ -41,11 +42,7 @@
#define MAX_SES_INFO 2
#define MAX_TCON_INFO 4
-#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1)
-#define MAX_SERVER_SIZE 15
-#define MAX_SHARE_SIZE 80
-#define MAX_USERNAME_SIZE 256 /* reasonable maximum for current servers */
-#define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */
+#define MAX_TREE_SIZE (2 + CIFS_NI_MAXHOST + 1 + CIFS_MAX_SHARE_LEN + 1)
#define CIFS_MIN_RCV_POOL 4
@@ -101,20 +98,14 @@ enum statusEnum {
};
enum securityEnum {
- LANMAN = 0, /* Legacy LANMAN auth */
+ Unspecified = 0, /* not specified */
+ LANMAN, /* Legacy LANMAN auth */
NTLM, /* Legacy NTLM012 auth with NTLM hash */
NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */
RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */
-/* NTLMSSP, */ /* can use rawNTLMSSP instead of NTLMSSP via SPNEGO */
Kerberos, /* Kerberos via SPNEGO */
};
-enum protocolEnum {
- TCP = 0,
- SCTP
- /* Netbios frames protocol not supported at this time */
-};
-
struct session_key {
unsigned int len;
char *response;
@@ -131,13 +122,16 @@ struct cifs_secmech {
struct crypto_shash *hmacmd5; /* hmac-md5 hash function */
struct crypto_shash *md5; /* md5 hash function */
struct crypto_shash *hmacsha256; /* hmac-sha256 hash function */
+ struct crypto_shash *cmacaes; /* block-cipher based MAC function */
struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */
struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */
struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */
+ struct sdesc *sdesccmacaes; /* ctxt to generate smb3 signature */
};
/* per smb session structure/fields */
struct ntlmssp_auth {
+ bool sesskey_per_smbsess; /* whether session key is per smb session */
__u32 client_flags; /* sent by client in type 1 ntlmsssp exchange */
__u32 server_flags; /* sent by server in type 2 ntlmssp exchange */
unsigned char ciphertext[CIFS_CPHTXT_SIZE]; /* sent to server */
@@ -181,6 +175,7 @@ enum smb_version {
Smb_20,
Smb_21,
Smb_30,
+ Smb_302,
};
struct mid_q_entry;
@@ -197,6 +192,7 @@ struct cifs_writedata;
struct cifs_io_parms;
struct cifs_search_info;
struct cifsInodeInfo;
+struct cifs_open_parms;
struct smb_version_operations {
int (*send_cancel)(struct TCP_Server_Info *, void *,
@@ -228,9 +224,12 @@ struct smb_version_operations {
void (*dump_detail)(void *);
void (*clear_stats)(struct cifs_tcon *);
void (*print_stats)(struct seq_file *m, struct cifs_tcon *);
+ void (*dump_share_caps)(struct seq_file *, struct cifs_tcon *);
/* verify the message */
int (*check_message)(char *, unsigned int);
bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+ void (*downgrade_oplock)(struct TCP_Server_Info *,
+ struct cifsInodeInfo *, bool);
/* process transaction2 response */
bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *,
char *, int);
@@ -264,7 +263,7 @@ struct smb_version_operations {
/* query path data from the server */
int (*query_path_info)(const unsigned int, struct cifs_tcon *,
struct cifs_sb_info *, const char *,
- FILE_ALL_INFO *, bool *);
+ FILE_ALL_INFO *, bool *, bool *);
/* query file data from the server */
int (*query_file_info)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *, FILE_ALL_INFO *);
@@ -281,6 +280,8 @@ struct smb_version_operations {
/* set attributes */
int (*set_file_info)(struct inode *, const char *, FILE_BASIC_INFO *,
const unsigned int);
+ int (*set_compression)(const unsigned int, struct cifs_tcon *,
+ struct cifsFileInfo *);
/* check if we can send an echo or nor */
bool (*can_echo)(struct TCP_Server_Info *);
/* send echo request */
@@ -308,10 +309,12 @@ struct smb_version_operations {
int (*create_hardlink)(const unsigned int, struct cifs_tcon *,
const char *, const char *,
struct cifs_sb_info *);
+ /* query symlink target */
+ int (*query_symlink)(const unsigned int, struct cifs_tcon *,
+ const char *, char **, struct cifs_sb_info *);
/* open a file for non-posix mounts */
- int (*open)(const unsigned int, struct cifs_tcon *, const char *, int,
- int, int, struct cifs_fid *, __u32 *, FILE_ALL_INFO *,
- struct cifs_sb_info *);
+ int (*open)(const unsigned int, struct cifs_open_parms *,
+ __u32 *, FILE_ALL_INFO *);
/* set fid protocol-specific info */
void (*set_fid)(struct cifsFileInfo *, struct cifs_fid *, __u32);
/* close a file */
@@ -322,7 +325,8 @@ struct smb_version_operations {
/* async read from the server */
int (*async_readv)(struct cifs_readdata *);
/* async write to the server */
- int (*async_writev)(struct cifs_writedata *);
+ int (*async_writev)(struct cifs_writedata *,
+ void (*release)(struct kref *));
/* sync read from the server */
int (*sync_read)(const unsigned int, struct cifsFileInfo *,
struct cifs_io_parms *, unsigned int *, char **,
@@ -362,13 +366,44 @@ struct smb_version_operations {
/* push brlocks from the cache to the server */
int (*push_mand_locks)(struct cifsFileInfo *);
/* get lease key of the inode */
- void (*get_lease_key)(struct inode *, struct cifs_fid *fid);
+ void (*get_lease_key)(struct inode *, struct cifs_fid *);
/* set lease key of the inode */
- void (*set_lease_key)(struct inode *, struct cifs_fid *fid);
+ void (*set_lease_key)(struct inode *, struct cifs_fid *);
/* generate new lease key */
- void (*new_lease_key)(struct cifs_fid *fid);
- int (*calc_signature)(struct smb_rqst *rqst,
- struct TCP_Server_Info *server);
+ void (*new_lease_key)(struct cifs_fid *);
+ int (*generate_signingkey)(struct cifs_ses *);
+ int (*calc_signature)(struct smb_rqst *, struct TCP_Server_Info *);
+ int (*query_mf_symlink)(unsigned int, struct cifs_tcon *,
+ struct cifs_sb_info *, const unsigned char *,
+ char *, unsigned int *);
+ int (*create_mf_symlink)(unsigned int, struct cifs_tcon *,
+ struct cifs_sb_info *, const unsigned char *,
+ char *, unsigned int *);
+ /* if we can do cache read operations */
+ bool (*is_read_op)(__u32);
+ /* set oplock level for the inode */
+ void (*set_oplock_level)(struct cifsInodeInfo *, __u32, unsigned int,
+ bool *);
+ /* create lease context buffer for CREATE request */
+ char * (*create_lease_buf)(u8 *, u8);
+ /* parse lease context buffer and return oplock/epoch info */
+ __u8 (*parse_lease_buf)(void *, unsigned int *);
+ int (*clone_range)(const unsigned int, struct cifsFileInfo *src_file,
+ struct cifsFileInfo *target_file, u64 src_off, u64 len,
+ u64 dest_off);
+ int (*validate_negotiate)(const unsigned int, struct cifs_tcon *);
+ ssize_t (*query_all_EAs)(const unsigned int, struct cifs_tcon *,
+ const unsigned char *, const unsigned char *, char *,
+ size_t, const struct nls_table *, int);
+ int (*set_EA)(const unsigned int, struct cifs_tcon *, const char *,
+ const char *, const void *, const __u16,
+ const struct nls_table *, int);
+ struct cifs_ntsd * (*get_acl)(struct cifs_sb_info *, struct inode *,
+ const char *, u32 *);
+ struct cifs_ntsd * (*get_acl_by_fid)(struct cifs_sb_info *,
+ const struct cifs_fid *, u32 *);
+ int (*set_acl)(struct cifs_ntsd *, __u32, struct inode *, const char *,
+ int);
};
struct smb_version_values {
@@ -386,7 +421,9 @@ struct smb_version_values {
unsigned int cap_unix;
unsigned int cap_nt_find;
unsigned int cap_large_files;
- unsigned int oplock_read;
+ __u16 signing_enabled;
+ __u16 signing_required;
+ size_t create_lease_size;
};
#define HEADER_SIZE(server) (server->vals->header_size)
@@ -407,7 +444,8 @@ struct smb_vol {
kgid_t backupgid;
umode_t file_mode;
umode_t dir_mode;
- unsigned secFlg;
+ enum securityEnum sectype; /* sectype requested via mnt opts */
+ bool sign; /* was signing requested via mnt opts? */
bool retry:1;
bool intr:1;
bool setuids:1;
@@ -441,6 +479,7 @@ struct smb_vol {
bool mfsymlinks:1; /* use Minshall+French Symlinks */
bool multiuser:1;
bool rwpidforward:1; /* pid forward for read/write operations */
+ bool nosharesock;
unsigned int rsize;
unsigned int wsize;
bool sockopt_tcp_nodelay:1;
@@ -476,7 +515,7 @@ struct cifs_mnt_data {
static inline unsigned int
get_rfc1002_length(void *buf)
{
- return be32_to_cpu(*((__be32 *)buf));
+ return be32_to_cpu(*((__be32 *)buf)) & 0xffffff;
}
static inline void
@@ -514,14 +553,15 @@ struct TCP_Server_Info {
struct task_struct *tsk;
char server_GUID[16];
__u16 sec_mode;
+ bool sign; /* is signing enabled on this connection? */
bool session_estab; /* mark when very first sess is established */
#ifdef CONFIG_CIFS_SMB2
int echo_credits; /* echo reserved slots */
int oplock_credits; /* oplock break reserved slots */
bool echoes:1; /* enable echoes */
+ __u8 client_guid[SMB2_CLIENT_GUID_SIZE]; /* Client GUID */
#endif
u16 dialect; /* dialect index that server chose */
- enum securityEnum secType;
bool oplocks:1; /* enable oplocks */
unsigned int maxReq; /* Clients should submit no more */
/* than maxReq distinct unanswered SMBs to the server when using */
@@ -533,9 +573,6 @@ struct TCP_Server_Info {
unsigned int max_rw; /* maxRw specifies the maximum */
/* message size the server can send or receive for */
/* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */
- unsigned int max_vcs; /* maximum number of smb sessions, at least
- those that can be specified uniquely with
- vcnumbers */
unsigned int capabilities; /* selective disabling of caps by smb sess */
int timeAdj; /* Adjust for difference in server time zone in sec */
__u64 CurrentMid; /* multiplex id - rotating counter */
@@ -546,6 +583,10 @@ struct TCP_Server_Info {
struct session_key session_key;
unsigned long lstrp; /* when we got last response from this server */
struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */
+#define CIFS_NEGFLAVOR_LANMAN 0 /* wct == 13, LANMAN */
+#define CIFS_NEGFLAVOR_UNENCAP 1 /* wct == 17, but no ext_sec */
+#define CIFS_NEGFLAVOR_EXTENDED 2 /* wct == 17, ext_sec bit set */
+ char negflavor; /* NEGOTIATE response flavor */
/* extended security flavors that server supports */
bool sec_ntlmssp; /* supports NTLMSSP */
bool sec_kerberosu2u; /* supports U2U Kerberos */
@@ -605,11 +646,34 @@ set_credits(struct TCP_Server_Info *server, const int val)
}
static inline __u64
-get_next_mid(struct TCP_Server_Info *server)
+get_next_mid64(struct TCP_Server_Info *server)
{
return server->ops->get_next_mid(server);
}
+static inline __le16
+get_next_mid(struct TCP_Server_Info *server)
+{
+ __u16 mid = get_next_mid64(server);
+ /*
+ * The value in the SMB header should be little endian for easy
+ * on-the-wire decoding.
+ */
+ return cpu_to_le16(mid);
+}
+
+static inline __u16
+get_mid(const struct smb_hdr *smb)
+{
+ return le16_to_cpu(smb->Mid);
+}
+
+static inline bool
+compare_mid(__u16 mid, const struct smb_hdr *smb)
+{
+ return mid == le16_to_cpu(smb->Mid);
+}
+
/*
* When the server supports very large reads and writes via POSIX extensions,
* we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not
@@ -697,8 +761,6 @@ struct cifs_ses {
enum statusEnum status;
unsigned overrideSecFlg; /* if non-zero override global sec flags */
__u16 ipc_tid; /* special tid for connection to IPC share */
- __u16 flags;
- __u16 vcnum;
char *serverOS; /* name of operating system underlying server */
char *serverNOS; /* name of network operating system of server */
char *serverDomain; /* security realm of server */
@@ -714,21 +776,15 @@ struct cifs_ses {
char *password;
struct session_key auth_key;
struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */
+ enum securityEnum sectype; /* what security flavor was specified? */
+ bool sign; /* is signing required? */
bool need_reconnect:1; /* connection reset, uid now invalid */
#ifdef CONFIG_CIFS_SMB2
__u16 session_flags;
+ char smb3signingkey[SMB3_SIGN_KEY_SIZE]; /* for signing smb3 packets */
#endif /* CONFIG_CIFS_SMB2 */
};
-/* no more than one of the following three session flags may be set */
-#define CIFS_SES_NT4 1
-#define CIFS_SES_OS2 2
-#define CIFS_SES_W9X 4
-/* following flag is set for old servers such as OS2 (and Win95?)
- which do not negotiate NTLM or POSIX dialects, but instead
- negotiate one of the older LANMAN dialects */
-#define CIFS_SES_LANMAN 8
-
static inline bool
cap_unix(struct cifs_ses *ses)
{
@@ -816,11 +872,16 @@ struct cifs_tcon {
#ifdef CONFIG_CIFS_SMB2
bool print:1; /* set if connection to printer share */
bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */
- __u32 capabilities;
+ __le32 capabilities;
__u32 share_flags;
__u32 maximal_access;
__u32 vol_serial_number;
__le64 vol_create_time;
+ __u32 ss_flags; /* sector size flags */
+ __u32 perf_sector_size; /* best sector size for perf */
+ __u32 max_chunks;
+ __u32 max_bytes_chunk;
+ __u32 max_bytes_copy;
#endif /* CONFIG_CIFS_SMB2 */
#ifdef CONFIG_CIFS_FSCACHE
u64 resource_id; /* server resource id */
@@ -911,6 +972,17 @@ struct cifs_search_info {
bool smallBuf:1; /* so we know which buf_release function to call */
};
+struct cifs_open_parms {
+ struct cifs_tcon *tcon;
+ struct cifs_sb_info *cifs_sb;
+ int disposition;
+ int desired_access;
+ int create_options;
+ const char *path;
+ struct cifs_fid *fid;
+ bool reconnect:1;
+};
+
struct cifs_fid {
__u16 netfid;
#ifdef CONFIG_CIFS_SMB2
@@ -919,6 +991,8 @@ struct cifs_fid {
__u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for smb2 */
#endif
struct cifs_pending_open *pending_open;
+ unsigned int epoch;
+ bool purge_cache;
};
struct cifs_fid_locks {
@@ -1000,7 +1074,7 @@ struct cifs_writedata {
unsigned int pagesz;
unsigned int tailsz;
unsigned int nr_pages;
- struct page *pages[1];
+ struct page *pages[];
};
/*
@@ -1016,6 +1090,17 @@ cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file)
struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file);
void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
+#define CIFS_CACHE_READ_FLG 1
+#define CIFS_CACHE_HANDLE_FLG 2
+#define CIFS_CACHE_RH_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_HANDLE_FLG)
+#define CIFS_CACHE_WRITE_FLG 4
+#define CIFS_CACHE_RW_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG)
+#define CIFS_CACHE_RHW_FLG (CIFS_CACHE_RW_FLG | CIFS_CACHE_HANDLE_FLG)
+
+#define CIFS_CACHE_READ(cinode) (cinode->oplock & CIFS_CACHE_READ_FLG)
+#define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG)
+#define CIFS_CACHE_WRITE(cinode) (cinode->oplock & CIFS_CACHE_WRITE_FLG)
+
/*
* One of these for each file inode
*/
@@ -1027,10 +1112,17 @@ struct cifsInodeInfo {
/* BB add in lists for dirty pages i.e. write caching info for oplock */
struct list_head openFileList;
__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
- bool clientCanCacheRead; /* read oplock */
- bool clientCanCacheAll; /* read and writebehind oplock */
- bool delete_pending; /* DELETE_ON_CLOSE is set */
- bool invalid_mapping; /* pagecache is invalid */
+ unsigned int oplock; /* oplock/lease level we have */
+ unsigned int epoch; /* used to track lease state changes */
+#define CIFS_INODE_PENDING_OPLOCK_BREAK (0) /* oplock break in progress */
+#define CIFS_INODE_PENDING_WRITERS (1) /* Writes in progress */
+#define CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2 (2) /* Downgrade oplock to L2 */
+#define CIFS_INO_DELETE_PENDING (3) /* delete pending on server */
+#define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */
+#define CIFS_INO_LOCK (5) /* lock bit for synchronization */
+ unsigned long flags;
+ spinlock_t writers_lock;
+ unsigned int writers; /* Number of writers on this inode */
unsigned long time; /* jiffies of last update of inode */
u64 server_eof; /* current file size on server -- protected by i_lock */
u64 uniqueid; /* server inode number */
@@ -1237,6 +1329,7 @@ struct dfs_info3_param {
#define CIFS_FATTR_DELETE_PENDING 0x2
#define CIFS_FATTR_NEED_REVAL 0x4
#define CIFS_FATTR_INO_COLLISION 0x8
+#define CIFS_FATTR_UNKNOWN_NLINK 0x10
struct cifs_fattr {
u32 cf_flags;
@@ -1348,7 +1441,7 @@ require use of the stronger protocol */
#define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */
#define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */
-#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMSSP)
+#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP)
#define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2)
#define CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_LANMAN | CIFSSEC_MAY_PLNTXT | CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP)
/*
@@ -1486,7 +1579,7 @@ extern mempool_t *cifs_mid_poolp;
extern struct smb_version_operations smb1_operations;
extern struct smb_version_values smb1_values;
#define SMB20_VERSION_STRING "2.0"
-/*extern struct smb_version_operations smb20_operations; */ /* not needed yet */
+extern struct smb_version_operations smb20_operations;
extern struct smb_version_values smb20_values;
#define SMB21_VERSION_STRING "2.1"
extern struct smb_version_operations smb21_operations;
@@ -1494,4 +1587,7 @@ extern struct smb_version_values smb21_values;
#define SMB30_VERSION_STRING "3.0"
extern struct smb_version_operations smb30_operations;
extern struct smb_version_values smb30_values;
+#define SMB302_VERSION_STRING "3.02"
+/*extern struct smb_version_operations smb302_operations;*/ /* not needed yet */
+extern struct smb_version_values smb302_values;
#endif /* _CIFS_GLOB_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 20:25:17 +0000