diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 192 |
1 files changed, 159 insertions, 33 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 6df0cbe1cbc..497da5ce704 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -22,11 +22,15 @@ #include <linux/in.h> #include <linux/in6.h> #include <linux/slab.h> +#include <linux/mempool.h> #include <linux/workqueue.h> #include "cifs_fs_sb.h" #include "cifsacl.h" #include <crypto/internal/hash.h> #include <linux/scatterlist.h> +#ifdef CONFIG_CIFS_SMB2 +#include "smb2pdu.h" +#endif /* * The sizes of various internal tables and strings @@ -72,6 +76,9 @@ /* (max path length + 1 for null) * 2 for unicode */ #define MAX_NAME 514 +/* SMB echo "timeout" -- FIXME: tunable? */ +#define SMB_ECHO_INTERVAL (60 * HZ) + #include "cifspdu.h" #ifndef XATTR_DOS_ATTRIB @@ -160,6 +167,10 @@ struct mid_q_entry; struct TCP_Server_Info; struct cifsFileInfo; struct cifs_ses; +struct cifs_tcon; +struct dfs_info3_param; +struct cifs_fattr; +struct smb_vol; struct smb_version_operations { int (*send_cancel)(struct TCP_Server_Info *, void *, @@ -168,12 +179,17 @@ struct smb_version_operations { /* setup request: allocate mid, sign message */ int (*setup_request)(struct cifs_ses *, struct kvec *, unsigned int, struct mid_q_entry **); + /* setup async request: allocate mid, sign message */ + int (*setup_async_request)(struct TCP_Server_Info *, struct kvec *, + unsigned int, struct mid_q_entry **); /* check response: verify signature, map error */ int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *, bool); - void (*add_credits)(struct TCP_Server_Info *, const unsigned int); + void (*add_credits)(struct TCP_Server_Info *, const unsigned int, + const int); void (*set_credits)(struct TCP_Server_Info *, const int); - int * (*get_credits_field)(struct TCP_Server_Info *); + int * (*get_credits_field)(struct TCP_Server_Info *, const int); + unsigned int (*get_credits)(struct mid_q_entry *); __u64 (*get_next_mid)(struct TCP_Server_Info *); /* data offset from read response message */ unsigned int (*read_data_offset)(char *); @@ -184,9 +200,52 @@ struct smb_version_operations { /* find mid corresponding to the response message */ struct mid_q_entry * (*find_mid)(struct TCP_Server_Info *, char *); void (*dump_detail)(void *); + void (*clear_stats)(struct cifs_tcon *); + void (*print_stats)(struct seq_file *m, struct cifs_tcon *); /* verify the message */ int (*check_message)(char *, unsigned int); bool (*is_oplock_break)(char *, struct TCP_Server_Info *); + /* process transaction2 response */ + bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *, + char *, int); + /* check if we need to negotiate */ + bool (*need_neg)(struct TCP_Server_Info *); + /* negotiate to the server */ + int (*negotiate)(const unsigned int, struct cifs_ses *); + /* setup smb sessionn */ + int (*sess_setup)(const unsigned int, struct cifs_ses *, + const struct nls_table *); + /* close smb session */ + int (*logoff)(const unsigned int, struct cifs_ses *); + /* connect to a server share */ + int (*tree_connect)(const unsigned int, struct cifs_ses *, const char *, + struct cifs_tcon *, const struct nls_table *); + /* close tree connecion */ + int (*tree_disconnect)(const unsigned int, struct cifs_tcon *); + /* get DFS referrals */ + int (*get_dfs_refer)(const unsigned int, struct cifs_ses *, + const char *, struct dfs_info3_param **, + unsigned int *, const struct nls_table *, int); + /* informational QFS call */ + void (*qfs_tcon)(const unsigned int, struct cifs_tcon *); + /* check if a path is accessible or not */ + int (*is_path_accessible)(const unsigned int, struct cifs_tcon *, + struct cifs_sb_info *, const char *); + /* 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 *); + /* get server index number */ + int (*get_srv_inum)(const unsigned int, struct cifs_tcon *, + struct cifs_sb_info *, const char *, + u64 *uniqueid, FILE_ALL_INFO *); + /* build a full path to the root of the mount */ + char * (*build_path_to_root)(struct smb_vol *, struct cifs_sb_info *, + struct cifs_tcon *); + /* check if we can send an echo or nor */ + bool (*can_echo)(struct TCP_Server_Info *); + /* send echo request */ + int (*echo)(struct TCP_Server_Info *); }; struct smb_version_values { @@ -198,6 +257,10 @@ struct smb_version_values { size_t header_size; size_t max_header_size; size_t read_rsp_size; + __le16 lock_cmd; + unsigned int cap_unix; + unsigned int cap_nt_find; + unsigned int cap_large_files; }; #define HEADER_SIZE(server) (server->vals->header_size) @@ -291,6 +354,12 @@ get_rfc1002_length(void *buf) return be32_to_cpu(*((__be32 *)buf)); } +static inline void +inc_rfc1001_len(void *buf, int count) +{ + be32_add_cpu((__be32 *)buf, count); +} + struct TCP_Server_Info { struct list_head tcp_ses_list; struct list_head smb_ses_list; @@ -319,8 +388,13 @@ struct TCP_Server_Info { struct mutex srv_mutex; struct task_struct *tsk; char server_GUID[16]; - char sec_mode; + __u16 sec_mode; 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 */ +#endif u16 dialect; /* dialect index that server chose */ enum securityEnum secType; bool oplocks:1; /* enable oplocks */ @@ -337,7 +411,7 @@ struct TCP_Server_Info { unsigned int max_vcs; /* maximum number of smb sessions, at least those that can be specified uniquely with vcnumbers */ - int capabilities; /* allow selective disabling of caps by smb sess */ + 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 */ char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */ @@ -366,6 +440,10 @@ struct TCP_Server_Info { atomic_t in_send; /* requests trying to send */ atomic_t num_waiters; /* blocked waiting to get in sendrecv */ #endif +#ifdef CONFIG_CIFS_SMB2 + unsigned int max_read; + unsigned int max_write; +#endif /* CONFIG_CIFS_SMB2 */ }; static inline unsigned int @@ -389,9 +467,10 @@ has_credits(struct TCP_Server_Info *server, int *credits) } static inline void -add_credits(struct TCP_Server_Info *server, const unsigned int add) +add_credits(struct TCP_Server_Info *server, const unsigned int add, + const int optype) { - server->ops->add_credits(server, add); + server->ops->add_credits(server, add, optype); } static inline void @@ -453,10 +532,10 @@ struct cifs_ses { char *serverOS; /* name of operating system underlying server */ char *serverNOS; /* name of network operating system of server */ char *serverDomain; /* security realm of server */ - int Suid; /* remote smb uid */ + __u64 Suid; /* remote smb uid */ uid_t linux_uid; /* overriding owner of files on the mount */ uid_t cred_uid; /* owner of credentials */ - int capabilities; + unsigned int capabilities; char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for TCP names - will ipv6 and sctp addresses fit? */ char *user_name; /* must not be null except during init of sess @@ -466,6 +545,9 @@ struct cifs_ses { struct session_key auth_key; struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */ bool need_reconnect:1; /* connection reset, uid now invalid */ +#ifdef CONFIG_CIFS_SMB2 + __u16 session_flags; +#endif /* CONFIG_CIFS_SMB2 */ }; /* no more than one of the following three session flags may be set */ #define CIFS_SES_NT4 1 @@ -475,6 +557,13 @@ struct cifs_ses { 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) +{ + return ses->server->vals->cap_unix & ses->capabilities; +} + /* * there is one of these for each connection to a resource on a particular * session @@ -487,32 +576,42 @@ struct cifs_tcon { char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */ char *nativeFileSystem; char *password; /* for share-level security */ - __u16 tid; /* The 2 byte tree id */ + __u32 tid; /* The 4 byte tree id */ __u16 Flags; /* optional support bits */ enum statusEnum tidStatus; #ifdef CONFIG_CIFS_STATS atomic_t num_smbs_sent; - atomic_t num_writes; - atomic_t num_reads; - atomic_t num_flushes; - atomic_t num_oplock_brks; - atomic_t num_opens; - atomic_t num_closes; - atomic_t num_deletes; - atomic_t num_mkdirs; - atomic_t num_posixopens; - atomic_t num_posixmkdirs; - atomic_t num_rmdirs; - atomic_t num_renames; - atomic_t num_t2renames; - atomic_t num_ffirst; - atomic_t num_fnext; - atomic_t num_fclose; - atomic_t num_hardlinks; - atomic_t num_symlinks; - atomic_t num_locks; - atomic_t num_acl_get; - atomic_t num_acl_set; + union { + struct { + atomic_t num_writes; + atomic_t num_reads; + atomic_t num_flushes; + atomic_t num_oplock_brks; + atomic_t num_opens; + atomic_t num_closes; + atomic_t num_deletes; + atomic_t num_mkdirs; + atomic_t num_posixopens; + atomic_t num_posixmkdirs; + atomic_t num_rmdirs; + atomic_t num_renames; + atomic_t num_t2renames; + atomic_t num_ffirst; + atomic_t num_fnext; + atomic_t num_fclose; + atomic_t num_hardlinks; + atomic_t num_symlinks; + atomic_t num_locks; + atomic_t num_acl_get; + atomic_t num_acl_set; + } cifs_stats; +#ifdef CONFIG_CIFS_SMB2 + struct { + atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS]; + atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS]; + } smb2_stats; +#endif /* CONFIG_CIFS_SMB2 */ + } stats; #ifdef CONFIG_CIFS_STATS2 unsigned long long time_writes; unsigned long long time_reads; @@ -543,6 +642,15 @@ struct cifs_tcon { bool local_lease:1; /* check leases (only) on local system not remote */ bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */ bool need_reconnect:1; /* connection reset, tid now invalid */ +#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; + __u32 share_flags; + __u32 maximal_access; + __u32 vol_serial_number; + __le64 vol_create_time; +#endif /* CONFIG_CIFS_SMB2 */ #ifdef CONFIG_CIFS_FSCACHE u64 resource_id; /* server resource id */ struct fscache_cookie *fscache; /* cookie for share */ @@ -657,13 +765,13 @@ struct cifs_io_parms { * Take a reference on the file private data. Must be called with * cifs_file_list_lock held. */ -static inline -struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file) +static inline void +cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file) { ++cifs_file->count; - return cifs_file; } +struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file); void cifsFileInfo_put(struct cifsFileInfo *cifs_file); /* @@ -734,6 +842,15 @@ convert_delimiter(char *path, char delim) } } +static inline char * +build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb, + struct cifs_tcon *tcon) +{ + if (!vol->ops->build_path_to_root) + return NULL; + return vol->ops->build_path_to_root(vol, cifs_sb, tcon); +} + #ifdef CONFIG_CIFS_STATS #define cifs_stats_inc atomic_inc @@ -791,6 +908,7 @@ typedef void (mid_callback_t)(struct mid_q_entry *mid); /* one of these for every pending CIFS request to the server */ struct mid_q_entry { struct list_head qhead; /* mids waiting on reply from this server */ + struct TCP_Server_Info *server; /* server corresponding to this mid */ __u64 mid; /* multiplex id */ __u32 pid; /* process id */ __u32 sequence_number; /* for CIFS signing */ @@ -954,6 +1072,12 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param, #define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */ #define CIFS_NO_RESP 0x040 /* no response buffer required */ +/* Type of request operation */ +#define CIFS_ECHO_OP 0x080 /* echo request */ +#define CIFS_OBREAK_OP 0x0100 /* oplock break request */ +#define CIFS_NEG_OP 0x0200 /* negotiate request */ +#define CIFS_OP_MASK 0x0380 /* mask request type */ + /* Security Flags: indicate type of session setup needed */ #define CIFSSEC_MAY_SIGN 0x00001 #define CIFSSEC_MAY_NTLM 0x00002 @@ -1127,6 +1251,8 @@ void cifs_oplock_break(struct work_struct *work); extern const struct slow_work_ops cifs_oplock_break_ops; extern struct workqueue_struct *cifsiod_wq; +extern mempool_t *cifs_mid_poolp; + /* Operations for different SMB versions */ #define SMB1_VERSION_STRING "1.0" extern struct smb_version_operations smb1_operations; |