Initial commit

FossilOrigin-Name: c53d95729c009f8f80a7d63847cef7668ff73f8af0523ab65f7734696f85399c

src/capwap/conn.h

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+/*
+    This file is part of libcapwap.
+
+    libcapwap is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    libcapwap is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#ifndef __CONN_H
+#define __CONN_H
+
+#include <stdint.h>
+#include <semaphore.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include "fragman.h"
+#include "cwmsg.h"
+#include "cwrmsg.h"
+
+
+struct conn{
+	int sock;
+	struct sockaddr_storage addr;
+	int recv_timeout;
+
+	FRAGMAN * fragman;
+//	void (* process_message)(void *,uint8_t *,uint8_t *, int);
+
+//	void (* process_message)(void *,struct cwrmsg *);  //uint8_t *,uint8_t *, int);
+//	void * pmsgarg;
+
+	int fragid;
+
+	int seqnum;
+
+	int last_seqnum_received; 
+	int last_message_id_received;
+
+	struct cwmsg * last_response;
+	struct cwmsg swm;
+	int last_response_seqnum;
+	int last_response_rid;
+
+	uint8_t buffer[65536];
+	int mtu;
+
+	/* receive and send methods */
+
+	int (*recv_packet)(struct conn  *, uint8_t *,int);
+	int (*send_packet)(struct conn *, const uint8_t *, int);
+
+	int (*read)(struct conn *, uint8_t*, int);
+	int (*write)(struct conn *, const uint8_t*, int);
+
+	/* optional packet queue */
+	uint8_t ** q; //[WTPMAN_QSIZE];
+	int qsize;
+	int qrpos;
+	int qwpos;
+	sem_t q_sem;
+	uint8_t * cur_packet;
+	int cur_packet_len;
+	int cur_packet_pos;
+
+#ifdef WITH_DTLS
+	/* dtls stuff */
+	int (*dtls_start)(struct conn*);
+	int (*dtls_accept)(struct conn*);
+
+	char * dtls_psk;
+	int dtls_psk_len;
+
+	char * dtls_cert_file;
+	char * dtls_key_file;
+	void * dtls_data;
+	char * dtls_cipher;
+#endif	
+	/* used to link the conn obj with other objects */
+	void * data;
+};
+
+
+
+struct conn * conn_create(int sock, struct sockaddr * addr,
+//	void (*process_message)(void *arg,uint8_t *hdr,uint8_t *msg, int len), 
+//	void (*process_message)(void *arg,struct cwrmsg *), //uint8_t *hdr,uint8_t *msg, int len), 
+//	void *pmsgarg, 
+	int qsize);
+
+
+extern int conn_send_cwmsg(struct conn * conn, struct cwmsg * cwmsg);
+extern void conn_process_packet(struct conn * conn, uint8_t *packet, int len,int(*cb)(void*,struct cwrmsg*),void *cbarg);
+extern struct cwrmsg * conn_get_message(struct conn * conn);
+
+extern int conn_send_packet(struct conn * conn,const uint8_t * buffer, int len);
+extern void conn_destroy(struct conn * conn);
+
+uint8_t * conn_q_get_packet(struct conn * conn);
+extern int conn_q_recv_packet(struct conn * conn, uint8_t * buffer,int len);
+
+extern int conn_recv_packet(struct conn* conn,uint8_t *buf,int len);
+
+#define conn_get_next_seqnum(conn) (conn->seqnum=((conn->seqnum+1)&0xff))
+#define conn_get_last_seqnum(conn) (conn->seqnum&0xff)
+
+
+/* connlist stuff */
+#include "avltree.h"
+struct connlist {
+/*	struct conn ** connlist; */
+
+	struct avltree * t;
+	int len;
+	pthread_mutex_t connlist_mutex;
+};
+
+
+struct connlist * connlist_create(int len);
+void connlist_lock(struct connlist * cl);
+void connlist_unlock(struct connlist * cl);
+void conlist_destroy(struct connlist * cl);
+struct conn * connlist_get(struct connlist * cl, const struct sockaddr * addr);
+struct conn * connlist_add(struct connlist * cl, struct conn * conn);
+void connlist_remove(struct connlist *cl,struct conn * conn);
+void connlist_destroy(struct connlist * cl);
+
+
+
+
+
+
+
+
+#endif /* __CONLIST_H */
+