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freebsd-skq/sys/netncp/ncp_conn.h
julian 5596676e6c KSE Milestone 2 
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00

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/*
* Copyright (c) 1999, Boris Popov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NETNCP_NCP_CONN_H_
#define _NETNCP_NCP_CONN_H_
#ifndef _NETINET_IN_H_
#include <netinet/in.h>
#endif
#ifndef _NETIPX_IPX_H_
#include <netipx/ipx.h>
#endif
#ifndef _SYS_SOCKET_H_
#include <sys/socket.h>
#endif
/* type of transport we use */
/*#define NCP_ON_IPX 0
#define NCP_ON_TCP 1*/
/* flags field in conn structure */
#define NCPFL_SOCONN 0x0001 /* socket layer is up */
#define NCPFL_ATTACHED 0x0002 /* ncp layer is up */
#define NCPFL_LOGGED 0x0004 /* logged in to server */
#define NCPFL_INVALID 0x0008 /* last request was not completed */
#define NCPFL_INTR 0x0010 /* interrupted call */
#define NCPFL_RESTORING 0x0020 /* trying to reconnect */
#define NCPFL_PERMANENT 0x0040 /* no way to kill conn, when this set */
#define NCPFL_PRIMARY 0x0080 /* have meaning only for owner */
#define NCPFL_WASATTACHED 0x0100 /* there was at least one successfull connect */
#define NCPFL_WASLOGGED 0x0200 /* there was at least one successfull login */
#define NCPFL_SIGNACTIVE 0x1000 /* packet signing active */
#define NCPFL_SIGNWANTED 0x2000 /* signing should start */
/* access mode for connection */
#define NCPM_READ 0400 /* able to fetch conn params */
#define NCPM_WRITE 0200 /* modify/close */
#define NCPM_EXECUTE 0100 /* run requests */
#define NCP_DEFAULT_OWNER ((uid_t)-1)
#define NCP_DEFAULT_GROUP ((uid_t)-1)
/* args used to create connection */
#define ncp_conn_loginfo ncp_conn_args
struct ncp_conn_args {
int opt;
#define NCP_OPT_WDOG 1 /* need watch dog socket */
#define NCP_OPT_MSG 2 /* need message socket */
#define NCP_OPT_SIGN 4 /* signatures wanted */
#define NCP_OPT_BIND 8 /* force bindery login */
#define NCP_OPT_PERMANENT 0x10 /* only for refernce, completly ignored */
#define NCP_OPT_NOUPCASEPASS 0x20 /* leave password as is */
int sig_level; /* wanted signature level */
char server[NCP_BINDERY_NAME_LEN+1];
char *user;
char *password;
u_int32_t objtype;
union {
struct sockaddr addr;
struct sockaddr_ipx ipxaddr;
struct sockaddr_in inaddr;
} addr;
int timeout; /* ncp rq timeout */
int retry_count; /* counts to give an error */
uid_t owner; /* proposed owner of connection */
gid_t group; /* proposed group of connection */
mode_t access_mode; /* R/W - can do rq's, X - can see the conn */
};
#define ipxaddr addr.ipxaddr
#define inaddr addr.inaddr
#define saddr addr.addr
/* user side structure to issue ncp calls */
struct ncp_buf {
int rqsize; /* request size without ncp header */
int rpsize; /* reply size minus ncp header */
int cc; /* completion code */
int cs; /* connection state */
char packet[NCP_MAX_PACKET_SIZE];/* Here we prepare requests and receive replies */
};
/*
* Connection status, returned via sysctl(vfs.nwfs.connstat)
*/
struct ncp_conn_stat {
struct ncp_conn_args li;
int connRef;
int ref_cnt;
int connid;
int buffer_size;
int flags;
int sign_active;
uid_t owner;
gid_t group;
char user[NCP_MAXUSERNAMELEN+1];
};
#ifdef _KERNEL
#ifndef LK_SHARED
#include <sys/lock.h>
#endif
struct socket;
struct u_cred;
SLIST_HEAD(ncp_conn_head,ncp_conn);
struct ncp_rq;
struct ncp_conn;
/*
* External and internal processes can reference connection only by handle.
* This gives us a freedom in maintance of underlying connections.
*/
struct ncp_handle {
SLIST_ENTRY(ncp_handle) nh_next;
int nh_id; /* handle id */
struct ncp_conn*nh_conn; /* which conn we are refernce */
struct proc * nh_proc; /* who owns the handle */
int nh_ref; /* one process can asquire many handles, but we return the one */
};
/*
* Describes any connection to server
*/
struct ncp_conn {
SLIST_ENTRY(ncp_conn) nc_next;
struct ncp_conn_args li;
struct ucred *nc_owner;
gid_t nc_group;
int flags;
int nc_id;
struct socket *ncp_so;
struct socket *wdg_so;
struct socket *msg_so;
struct socket *bc_so;
int ref_cnt; /* how many handles leased */
SLIST_HEAD(ncp_ref_hd,ncp_ref) ref_list;/* list of handles */
struct lock nc_lock; /* excl locks */
int nc_lwant; /* number of wanted locks */
struct proc *procp; /* pid currently operates */
struct ucred *ucred; /* usr currently operates */
/* Fields used to process ncp requests */
int connid; /* assigned by server */
u_int8_t seq;
int buffer_size; /* Negotiated bufsize */
/* Fields used to make packet signatures */
u_int32_t sign_root[2];
u_int32_t sign_state[4]; /* md4 state */
#ifdef NCPBURST
/* Fields used for packet bursting */
u_long bc_pktseq; /* raw packet sequence */
u_short bc_seq; /* burst sequence */
u_long bc_locid; /* local connection id */
u_long bc_remid; /* remote connection id */
u_long bc_pktsize; /* negotiated burst packet size */
#endif
};
int ncp_conn_init(void);
int ncp_conn_destroy(void);
int ncp_conn_alloc(struct ncp_conn_args *cap,
struct thread *td, struct ucred *cred, struct ncp_conn **connid);
int ncp_conn_free(struct ncp_conn *conn);
int ncp_conn_access(struct ncp_conn *conn,struct ucred *cred,mode_t mode);
int ncp_conn_lock(struct ncp_conn *conn,struct thread *td, struct ucred *cred,int mode);
void ncp_conn_unlock(struct ncp_conn *conn,struct thread *td);
int ncp_conn_assert_locked(struct ncp_conn *conn,char *checker,struct thread *td);
void ncp_conn_invalidate(struct ncp_conn *ncp);
int ncp_conn_invalid(struct ncp_conn *ncp);
/*int ncp_conn_ref(struct ncp_conn *conn, pid_t pid);
int ncp_conn_rm_ref(struct ncp_conn *conn, pid_t pid, int force);
void ncp_conn_list_rm_ref(pid_t pid);*/
int ncp_conn_getbyref(int connRef,struct thread *td, struct ucred *cred, int mode,
struct ncp_conn **connpp);
int ncp_conn_getbyli(struct ncp_conn_loginfo *li,struct thread *td, struct ucred *cred,
int mode, struct ncp_conn **connpp);
int ncp_conn_setprimary(struct ncp_conn *conn, int on);
int ncp_conn_locklist(int flags, struct thread *td);
void ncp_conn_unlocklist(struct thread *td);
int ncp_conn_gethandle(struct ncp_conn *conn, struct thread *td, struct ncp_handle **handle);
int ncp_conn_puthandle(struct ncp_handle *handle, struct thread *td, int force);
int ncp_conn_findhandle(int connHandle, struct thread *td, struct ncp_handle **handle);
int ncp_conn_getattached(struct ncp_conn_args *li,struct thread *td, struct ucred *cred,int mode, struct ncp_conn **connpp);
int ncp_conn_putprochandles(struct thread *td);
int ncp_conn_getinfo(struct ncp_conn *ncp, struct ncp_conn_stat *ncs);
int ncp_conn_reconnect(struct ncp_conn *ncp);
int ncp_conn_login(struct ncp_conn *conn, struct thread *td, struct ucred *cred);
extern struct ncp_conn_head conn_list;
extern int ncp_burst_enabled;
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_NCPDATA);
#endif
#endif /* _KERNEL */
#endif /* _NCP_CONN_H_ */
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