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/*
Unix SMB/Netbios implementation.
smbd globals
Copyright (C) Stefan Metzmacher 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(WITH_AIO)
struct aio_extra;
extern struct aio_extra *aio_list_head;
extern struct tevent_signal *aio_signal_event;
extern int aio_pending_size;
extern int outstanding_aio_calls;
#endif
/* dlink list we store pending lock records on. */
extern struct blocking_lock_record *blocking_lock_queue;
/* dlink list we move cancelled lock records onto. */
extern struct blocking_lock_record *blocking_lock_cancelled_queue;
/* The event that makes us process our blocking lock queue */
extern struct timed_event *brl_timeout;
extern bool blocking_lock_unlock_state;
extern bool blocking_lock_cancel_state;
#ifdef USE_DMAPI
struct smbd_dmapi_context;
extern struct smbd_dmapi_context *dmapi_ctx;
#endif
extern connection_struct *Connections;
/* number of open connections */
extern struct bitmap *bmap;
extern int num_open;
extern bool dfree_broken;
extern struct bitmap *dptr_bmap;
//struct dptr_struct;
extern struct dptr_struct *dirptrs;
extern int dirhandles_open;
/* how many write cache buffers have been allocated */
extern unsigned int allocated_write_caches;
extern int real_max_open_files;
extern struct bitmap *file_bmap;
extern files_struct *Files;
extern int files_used;
/* A singleton cache to speed up searching by dev/inode. */
struct fsp_singleton_cache {
files_struct *fsp;
struct file_id id;
};
extern struct fsp_singleton_cache fsp_fi_cache;
extern unsigned long file_gen_counter;
extern int first_file;
extern const struct mangle_fns *mangle_fns;
extern unsigned char *chartest;
extern TDB_CONTEXT *tdb_mangled_cache;
/* these tables are used to provide fast tests for characters */
extern unsigned char char_flags[256];
/*
this determines how many characters are used from the original filename
in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
The largest possible value is 6.
*/
extern unsigned mangle_prefix;
extern unsigned char base_reverse[256];
extern char *last_from;
extern char *last_to;
struct msg_state;
extern struct msg_state *smbd_msg_state;
extern bool global_encrypted_passwords_negotiated;
extern bool global_spnego_negotiated;
extern struct auth_context *negprot_global_auth_context;
extern bool done_negprot;
extern bool logged_ioctl_message;
/* users from session setup */
extern char *session_userlist;
/* workgroup from session setup. */
extern char *session_workgroup;
/* this holds info on user ids that are already validated for this VC */
extern user_struct *validated_users;
extern uint16_t next_vuid;
extern int num_validated_vuids;
#ifdef HAVE_NETGROUP
extern char *my_yp_domain;
#endif
extern bool already_got_session;
/*
* Size of data we can send to client. Set
* by the client for all protocols above CORE.
* Set by us for CORE protocol.
*/
extern int max_send;
/*
* Size of the data we can receive. Set by us.
* Can be modified by the max xmit parameter.
*/
extern int max_recv;
extern uint16 last_session_tag;
extern int trans_num;
extern char *orig_inbuf;
extern pid_t mypid;
extern time_t last_smb_conf_reload_time;
extern time_t last_printer_reload_time;
/****************************************************************************
structure to hold a linked list of queued messages.
for processing.
****************************************************************************/
struct pending_message_list;
extern struct pending_message_list *deferred_open_queue;
extern uint32_t common_flags2;
struct smb_srv_trans_enc_ctx;
extern struct smb_srv_trans_enc_ctx *partial_srv_trans_enc_ctx;
extern struct smb_srv_trans_enc_ctx *srv_trans_enc_ctx;
struct sec_ctx {
UNIX_USER_TOKEN ut;
NT_USER_TOKEN *token;
};
/* A stack of security contexts. We include the current context as being
the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
extern int sec_ctx_stack_ndx;
extern bool become_uid_done;
extern bool become_gid_done;
extern connection_struct *last_conn;
extern uint16_t last_flags;
extern struct db_context *session_db_ctx_ptr;
extern uint32_t global_client_caps;
extern bool done_sesssetup;
/****************************************************************************
List to store partial SPNEGO auth fragments.
****************************************************************************/
struct pending_auth_data;
extern struct pending_auth_data *pd_list;
extern uint16_t fnf_handle;
struct conn_ctx {
connection_struct *conn;
uint16 vuid;
};
/* A stack of current_user connection contexts. */
extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
extern int conn_ctx_stack_ndx;
struct vfs_init_function_entry;
extern struct vfs_init_function_entry *backends;
extern char *sparse_buf;
extern char *LastDir;
/* Current number of oplocks we have outstanding. */
extern int32_t exclusive_oplocks_open;
extern int32_t level_II_oplocks_open;
extern bool global_client_failed_oplock_break;
extern struct kernel_oplocks *koplocks;
extern struct notify_mid_map *notify_changes_by_mid;
extern int am_parent;
extern int server_fd;
extern struct event_context *smbd_event_ctx;
extern struct messaging_context *smbd_msg_ctx;
extern struct memcache *smbd_memcache_ctx;
extern bool exit_firsttime;
struct child_pid;
extern struct child_pid *children;
extern int num_children;
struct tstream_context;
struct smbd_smb2_request;
DATA_BLOB negprot_spnego(void);
bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
void smbd_smb2_first_negprot(struct smbd_server_connection *conn,
const uint8_t *inbuf, size_t size);
NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
NTSTATUS status, DATA_BLOB *info);
NTSTATUS smbd_smb2_request_error(struct smbd_smb2_request *req,
NTSTATUS status);
NTSTATUS smbd_smb2_request_done(struct smbd_smb2_request *req,
DATA_BLOB body, DATA_BLOB *dyn);
NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
struct smbd_smb2_request {
TALLOC_CTX *mem_pool;
struct smbd_server_connection *conn;
int current_idx;
struct {
/* the NBT header is not allocated */
uint8_t nbt_hdr[4];
/*
* vector[0] NBT
* .
* vector[1] SMB2
* vector[2] fixed body
* vector[3] dynamic body
* .
* .
* .
* vector[4] SMB2
* vector[5] fixed body
* vector[6] dynamic body
* .
* .
* .
*/
struct iovec *vector;
int vector_count;
} in;
struct {
/* the NBT header is not allocated */
uint8_t nbt_hdr[4];
/*
* vector[0] NBT
* .
* vector[1] SMB2
* vector[2] fixed body
* vector[3] dynamic body
* .
* .
* .
* vector[4] SMB2
* vector[5] fixed body
* vector[6] dynamic body
* .
* .
* .
*/
struct iovec *vector;
int vector_count;
} out;
};
struct smbd_server_connection {
struct fd_event *fde;
uint64_t num_requests;
struct smb_signing_state *signing_state;
bool allow_smb2;
struct {
struct tevent_context *event_ctx;
struct tevent_queue *recv_queue;
struct tevent_queue *send_queue;
struct tstream_context *stream;
} smb2;
};
extern struct smbd_server_connection *smbd_server_conn;
void smbd_init_globals(void);
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