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98 lines
2.6 KiB
98 lines
2.6 KiB
4 months ago
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __MTPD_H__
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#define __MTPD_H__
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#if !defined(PX_PROTO_OLAC)
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#define USING_UAPI
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#endif
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#if defined(USING_UAPI)
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/* This stuff isn't in uapi. */
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#define PX_PROTO_OLAC 3
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#define PX_PROTO_OPNS 4
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struct sockaddr_pppopns {
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sa_family_t sa_family;
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unsigned int sa_protocol;
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int tcp_socket;
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uint16_t local;
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uint16_t remote;
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} __attribute__((packed));
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struct sockaddr_pppolac {
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sa_family_t sa_family;
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unsigned int sa_protocol;
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int udp_socket;
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struct __attribute__((packed)) {
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uint16_t tunnel;
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uint16_t session;
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} local, remote;
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} __attribute__((packed));
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#endif
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/* The socket to the server. */
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extern int the_socket;
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enum exit_code {
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SYSTEM_ERROR = 1,
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NETWORK_ERROR = 2,
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PROTOCOL_ERROR = 3,
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CHALLENGE_FAILED = 4,
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USER_REQUESTED = 5,
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REMOTE_REQUESTED = 6,
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PPPD_EXITED = 32,
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};
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enum log_level {
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DEBUG = 0,
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INFO = 1,
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WARNING = 2,
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ERROR = 3,
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FATAL = 4,
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LOG_MAX = 4,
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};
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void log_print(int level, char *format, ...);
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void create_socket(int family, int type, char *server, char *port);
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void start_pppd(int pppox);
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void start_pppd_ol2tp(int tunnel_fd, int session_fd, int tunnel_id,
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int session_id);
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void start_pppd_pptp(int pptp_fd);
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/* Each protocol must implement everything defined in this structure. Note that
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* timeout intervals are in milliseconds, where zero means forever. To indicate
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* an error, one should use a negative exit code such as -REMOTE_REQUESTED. */
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struct protocol {
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/* The name of this protocol. */
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char *name;
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/* The number of arguments. */
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int arguments;
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/* The usage of the arguments. */
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char *usage;
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/* Connect to the server and return the next timeout interval. */
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int (*connect)(char **arguments);
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/* Process the incoming packet and return the next timeout interval. */
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int (*process)();
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/* Handle the timeout event and return the next timeout interval. */
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int (*timeout)();
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/* Handle the shutdown event. */
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void (*shutdown)();
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};
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#endif /* __MTPD_H__ */
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