201 lines
5.1 KiB
C
201 lines
5.1 KiB
C
/*
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This file is part of libcapwap.
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libcapwap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libcapwap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CONN_H
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#define __CONN_H
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#include <stdint.h>
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#include <semaphore.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include "fragman.h"
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#include "cwmsg.h"
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#include "cwrmsg.h"
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#include "wtpinfo.h"
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struct conn{
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int sock;
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struct sockaddr_storage addr;
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int recv_timeout;
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FRAGMAN * fragman;
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// void (* process_message)(void *,uint8_t *,uint8_t *, int);
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// void (* process_message)(void *,struct cwrmsg *); //uint8_t *,uint8_t *, int);
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// void * pmsgarg;
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int fragid;
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int seqnum;
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int last_seqnum_received;
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int last_message_id_received;
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// struct cwmsg * last_response;
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// struct cwmsg swm;
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// int last_response_seqnum;
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// int last_response_rid;
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struct cwrmsg cwrmsg;
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uint8_t cwrmsg_buffer[65536];
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struct cwmsg req_msg;
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struct cwmsg resp_msg;
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uint8_t req_buffer[65536];
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uint8_t resp_buffer[65536];
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int mtu; /* max mtu, could be changed during discovery */
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int mtu_discovery; /* 0 mtu discovery turned off, 1 discovery tuned on */
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/* receive and send methods */
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int (*recv_packet)(struct conn *, uint8_t *,int);
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int (*recv_packet_peek)(struct conn *, uint8_t *,int);
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int (*send_packet)(struct conn *, const uint8_t *, int);
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int (*read)(struct conn *, uint8_t*, int);
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int (*write)(struct conn *, const uint8_t*, int);
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/* optional packet queue */
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uint8_t ** q;
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int qsize;
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int qrpos;
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int qwpos;
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sem_t q_sem;
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uint8_t * cur_packet;
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int cur_packet_len;
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int cur_packet_pos;
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/* dtls stuff */
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int (*dtls_start)(struct conn*);
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int (*dtls_accept)(struct conn*);
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char * dtls_psk;
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int dtls_psk_len;
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char * dtls_cert_file;
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char * dtls_key_file;
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char * dtls_key_pass;
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void * dtls_data;
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char * dtls_cipher;
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int dtls_error;
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uint8_t dtls_cookie[8];
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int dtls_verify_peer;
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uint8_t dtls_buffer[2048];
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int dtls_buffer_len;
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int dtls_buffer_pos;
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/* capwap timers */
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int retransmit_interval;
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int max_retransmit;
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int wait_dtls;
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int wait_join;
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/* used to link the conn obj with other objects */
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void * data;
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/* misc */
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int capwap_mode;
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int strict_capwap;
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int (*request_handler) (void*);
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void * request_handler_param;
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};
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#define conn_is_strict_capwap(conn) (conn->strict_capwap)
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struct conn * conn_create(int sock, struct sockaddr * addr, int qsize);
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struct conn * conn_create_noq(int sock, struct sockaddr * addr);
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extern int conn_send_cwmsg(struct conn * conn, struct cwmsg * cwmsg);
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extern void conn_process_packet(struct conn * conn, uint8_t *packet, int len,int(*cb)(void*,struct cwrmsg*),void *cbarg);
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extern struct cwrmsg * conn_get_message(struct conn * conn);
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extern int conn_send_packet(struct conn * conn,const uint8_t * buffer, int len);
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extern void conn_destroy(struct conn * conn);
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uint8_t * conn_q_get_packet(struct conn * conn);
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extern int conn_q_recv_packet(struct conn * conn, uint8_t * buffer,int len);
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extern int conn_q_recv_packet_peek(struct conn * conn, uint8_t * buffer,int len);
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extern int conn_recv_packet(struct conn* conn,uint8_t *buf,int len);
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extern int conn_recv_packet_peek(struct conn* conn,uint8_t *buf,int len);
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extern int conn_send_response(struct conn * conn,struct cwmsg * cwmsg,int seqnum);
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extern struct cwrmsg * conn_get_response(struct conn * conn);
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#define conn_get_next_seqnum(conn) (conn->seqnum=((conn->seqnum+1)&0xff))
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#define conn_get_last_seqnum(conn) (conn->seqnum&0xff)
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/* connlist stuff */
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#include "avltree.h"
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struct connlist {
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/* struct conn ** connlist; */
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struct avltree * t;
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int len;
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pthread_mutex_t connlist_mutex;
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};
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struct connlist * connlist_create(int len);
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void connlist_lock(struct connlist * cl);
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void connlist_unlock(struct connlist * cl);
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void conlist_destroy(struct connlist * cl);
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struct conn * connlist_get(struct connlist * cl, const struct sockaddr * addr);
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struct conn * connlist_add(struct connlist * cl, struct conn * conn);
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void connlist_remove(struct connlist *cl,struct conn * conn);
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void connlist_destroy(struct connlist * cl);
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void conn_q_add_packet(struct conn * conn,uint8_t *packet,int len);
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struct image_identifier;
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struct cwimage_data;
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extern void conn_prepare_request(struct conn * conn, int type);
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extern int conn_prepare_image_data_request(struct conn * conn, struct cwimage_data *, struct image_identifier *id );
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extern void conn_detect_capwap(struct conn * conn, struct wtpinfo * wtpinfo);
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struct cwrmsg * conn_send_request(struct conn * conn);
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struct cwrmsg * conn_wait_for_message(struct conn * conn, time_t timer);
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#define conn_is_error(conn) (conn->dtls_error)
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void conn_init(struct conn * conn);
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#endif /* __CONLIST_H */
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