freebsd-dev/sys/netncp/ncp_ncp.h
Boris Popov 29ad26f932 Major update of NCP requester:
Use mchain API to work with mbuf chains.

Do not depend on INET and IPX options.

Allocate ncp_rq structure dynamically to prevent possible stack overflows.

Let ncp_request() dispose control structure if request failed.

Move all NCP wrappers to ncp_ncp.c file and all NCP request processing
functions to ncp_rq.c file.

Improve reconnection logic.

Misc style fixes.
2001-03-10 05:24:45 +00:00

132 lines
4.3 KiB
C

/*
* 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_NCP_H_
#define _NETNCP_NCP_NCP_H_
#define NCP_ALLOC_SLOT 0x1111
#define NCP_REQUEST 0x2222
#define NCP_REPLY 0x3333
#define NCP_FREE_SLOT 0x5555
#define NCP_PACKET_BURST 0x7777
#define NCP_POSITIVE_ACK 0x9999
/*
* Bits for connection state field in ncp_rphdr
*/
#define NCP_CS_BAD_CONN 0x01 /* no such connection */
#define NCP_CS_NO_SLOTS 0x04 /* no connection slots available */
#define NCP_CS_SERVER_DOWN 0x10 /* server in down state */
#define NCP_CS_HAVE_BROADCAST 0x40 /* server holds broadcast for us */
#define NCP_RETRY_COUNT 5
#define NCP_RETRY_TIMEOUT 10
#define NCP_RESTORE_COUNT 2 /* how many times try to restore per
* single request, should be an _even_ */
struct ncp_rqhdr {
u_int16_t type;
u_int8_t seq;
u_int8_t conn_low;
u_int8_t task;
u_int8_t conn_high;
u_int8_t fn;
u_int8_t data[0];
} __attribute__((packed));
struct ncp_rphdr {
u_int16_t type;
u_int8_t seq;
u_int8_t conn_low;
u_int8_t task;
u_int8_t conn_high;
u_int8_t completion_code;
u_int8_t connection_state;
u_int8_t data[0];
}__attribute__((packed));
#define BFL_ABT 0x04
#define BFL_EOB 0x10
#define BFL_SYS 0x80
#define BOP_READ 1L
#define BOP_WRITE 2L
#define BERR_NONE 0
#define BERR_INIT 1
#define BERR_IO 2
#define BERR_NODATA 3
#define BERR_WRITE 4
struct ncp_bursthdr {
u_short bh_type;
u_char bh_flags;
u_char bh_streamtype;
u_long bh_srcid;
u_long bh_dstid;
u_long bh_seq; /* HL */
u_long bh_send_delay; /* HL */
u_short bh_bseq; /* HL */
u_short bh_aseq; /* HL */
u_long bh_blen; /* HL */
u_long bh_dofs; /* HL */
u_short bh_dlen; /* HL */
u_short bh_misfrags; /* HL */
} __attribute__((packed));
struct ncp_conn;
struct ncp_conn_args;
struct ncp_rq;
struct proc;
struct ucred;
int ncp_ncp_connect(struct ncp_conn *conn);
int ncp_ncp_disconnect(struct ncp_conn *conn);
int ncp_login(struct ncp_conn *conn, char *user, int objtype, char *password,
struct proc *p, struct ucred *cred);
int ncp_negotiate_buffersize(struct ncp_conn *conn, int size, int *target);
int ncp_renegotiate_connparam(struct ncp_conn *conn, int buffsize,
u_int8_t in_options);
int ncp_get_bindery_object_id(struct ncp_conn *conn,
u_int16_t object_type, char *object_name,
struct ncp_bindery_object *target,
struct proc *p,struct ucred *cred);
int ncp_login_object(struct ncp_conn *conn, unsigned char *username,
int login_type, unsigned char *password,
struct proc *p,struct ucred *cred);
int ncp_read(struct ncp_conn *conn, ncp_fh *file, struct uio *uiop, struct ucred *cred);
int ncp_write(struct ncp_conn *conn, ncp_fh *file, struct uio *uiop, struct ucred *cred);
#endif /* _NCP_NCP_H_ */