/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
* based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
* Internet Initiative Japan, Inc (IIJ)
* 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.
*
* 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.
*/
#define IPCP_MAXCODE CODE_CODEREJ
#define TY_IPADDRS 1
#define TY_COMPPROTO 2
#define TY_IPADDR 3
/* Domain NameServer and NetBIOS NameServer options */
#define TY_PRIMARY_DNS 129
#define TY_PRIMARY_NBNS 130
#define TY_SECONDARY_DNS 131
#define TY_SECONDARY_NBNS 132
#define TY_ADJUST_NS 119 /* subtract from NS val for REJECT bit */
struct ipcp {
struct fsm fsm; /* The finite state machine */
struct {
struct {
int slots; /* Maximum VJ slots */
unsigned slotcomp : 1; /* Slot compression */
unsigned neg : 2; /* VJ negotiation */
} vj;
struct ncprange my_range; /* MYADDR spec */
struct in_addr netmask; /* Iface netmask (unused by most OSs) */
struct ncprange peer_range; /* HISADDR spec */
struct iplist peer_list; /* Ranges of HISADDR values */
struct in_addr TriggerAddress; /* Address to suggest in REQ */
unsigned HaveTriggerAddress : 1; /* Trigger address specified */
struct {
struct in_addr dns[2]; /* DNS addresses offered */
unsigned dns_neg : 2; /* dns negotiation */
struct in_addr nbns[2]; /* NetBIOS NS addresses offered */
} ns;
struct fsm_retry fsm; /* frequency to resend requests */
} cfg;
struct {
struct slcompress cslc; /* VJ state */
struct slstat slstat; /* VJ statistics */
} vj;
struct {
unsigned resolver : 1; /* Found resolv.conf ? */
unsigned writable : 1; /* Can write resolv.conf ? */
struct in_addr dns[2]; /* Current DNS addresses */
char *resolv; /* Contents of resolv.conf */
char *resolv_nons; /* Contents of resolv.conf without ns */
} ns;
unsigned heis1172 : 1; /* True if he is speaking rfc1172 */
unsigned peer_req : 1; /* Any TY_IPADDR REQs from the peer ? */
struct in_addr peer_ip; /* IP address he's willing to use */
u_int32_t peer_compproto; /* VJ params he's willing to use */
struct in_addr ifmask; /* Interface netmask */
struct in_addr my_ip; /* IP address I'm willing to use */
u_int32_t my_compproto; /* VJ params I'm willing to use */
u_int32_t peer_reject; /* Request codes rejected by peer */
u_int32_t my_reject; /* Request codes I have rejected */
struct pppThroughput throughput; /* throughput statistics */
struct mqueue Queue[3]; /* Output packet queues */
};
#define fsm2ipcp(fp) (fp->proto == PROTO_IPCP ? (struct ipcp *)fp : NULL)
#define IPCP_QUEUES(ipcp) (sizeof ipcp->Queue / sizeof ipcp->Queue[0])
struct bundle;
struct link;
struct cmdargs;
struct iface_addr;
extern void ipcp_Init(struct ipcp *, struct bundle *, struct link *,
const struct fsm_parent *);
extern void ipcp_Destroy(struct ipcp *);
extern void ipcp_Setup(struct ipcp *, u_int32_t);
extern void ipcp_SetLink(struct ipcp *, struct link *);
extern int ipcp_Show(struct cmdargs const *);
extern struct mbuf *ipcp_Input(struct bundle *, struct link *, struct mbuf *);
extern void ipcp_AddInOctets(struct ipcp *, int);
extern void ipcp_AddOutOctets(struct ipcp *, int);
extern int ipcp_UseHisIPaddr(struct bundle *, struct in_addr);
extern int ipcp_UseHisaddr(struct bundle *, const char *, int);
extern int ipcp_vjset(struct cmdargs const *);
extern void ipcp_IfaceAddrAdded(struct ipcp *, const struct iface_addr *);
extern void ipcp_IfaceAddrDeleted(struct ipcp *, const struct iface_addr *);
extern int ipcp_InterfaceUp(struct ipcp *);
extern struct in_addr addr2mask(struct in_addr);
extern int ipcp_WriteDNS(struct ipcp *);
extern void ipcp_RestoreDNS(struct ipcp *);
extern void ipcp_LoadDNS(struct ipcp *);
extern size_t ipcp_QueueLen(struct ipcp *);
extern int ipcp_PushPacket(struct ipcp *, struct link *);
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