diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 61 |
1 files changed, 40 insertions, 21 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 52ca861ed35..cfa14c80ef3 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 @@ -41,12 +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 CIFS_MAX_DOMAINNAME_LEN 256 /* max domain name length */ -#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 @@ -135,6 +131,7 @@ struct cifs_secmech { /* 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 */ @@ -308,6 +305,9 @@ 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_open_parms *, __u32 *, FILE_ALL_INFO *); @@ -361,18 +361,24 @@ 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); - /* The next two functions will need to be changed to per smb session */ - void (*generate_signingkey)(struct TCP_Server_Info *server); - int (*calc_signature)(struct smb_rqst *rqst, - struct TCP_Server_Info *server); - int (*query_mf_symlink)(const unsigned char *path, char *pbuf, - unsigned int *pbytes_read, struct cifs_sb_info *cifs_sb, - unsigned int xid); + 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)(const unsigned char *, char *, unsigned int *, + struct cifs_sb_info *, 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 *); }; struct smb_version_values { @@ -390,9 +396,9 @@ 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) @@ -548,7 +554,6 @@ struct TCP_Server_Info { int timeAdj; /* Adjust for difference in server time zone in sec */ __u64 CurrentMid; /* multiplex id - rotating counter */ char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */ - char smb3signingkey[SMB3_SIGN_KEY_SIZE]; /* for signing smb3 packets */ /* 16th byte of RFC1001 workstation name is always null */ char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; __u32 sequence_number; /* for signing, protected by srv_mutex */ @@ -731,6 +736,7 @@ struct cifs_ses { 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 */ }; @@ -935,6 +941,8 @@ 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 { @@ -1032,6 +1040,17 @@ 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 */ @@ -1043,8 +1062,8 @@ 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 */ + unsigned int oplock; /* oplock/lease level we have */ + unsigned int epoch; /* used to track lease state changes */ bool delete_pending; /* DELETE_ON_CLOSE is set */ bool invalid_mapping; /* pagecache is invalid */ unsigned long time; /* jiffies of last update of inode */ @@ -1502,7 +1521,7 @@ 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; |