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f8654a0408
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#include <string.h> |
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#include "conn.h" |
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#include "capwap.h" |
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#include "cw.h" |
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#include <stdlib.h> |
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#include <string.h> |
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#include <errno.h> |
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#include "log.h" |
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#include "capwap.h" |
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#include "conn.h" |
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#include "sock.h" |
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#include "msgset.h" |
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#include "cw.h" |
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static int write_header(struct cw_ElemHandler * handler, uint8_t * dst, int len) |
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{ |
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if (handler->vendor) |
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return len + cw_put_elem_vendor_hdr(dst, handler->vendor, handler->id, len); |
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return len + cw_put_elem_hdr(dst, handler->id, len); |
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} |
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static int header_len(struct cw_ElemHandler * handler) |
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{ |
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return handler->vendor ? 10 : 4; |
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} |
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/**
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* Basic initialization of a conn object
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* @param conn conn object to initialize |
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*/
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void cw_conn_init(struct cw_Conn * conn) |
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{ |
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memset(conn,0,sizeof(struct cw_Conn )); |
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conn->retransmit_interval=CAPWAP_RETRANSMIT_INTERVAL; |
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conn->max_retransmit=CAPWAP_MAX_RETRANSMIT; |
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conn->wait_dtls=CAPWAP_WAIT_DTLS; |
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conn->wait_join=CAPWAP_WAIT_JOIN; |
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conn->mtu_discovery=1; |
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// conn->capwap_mode = 0;
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conn->strict_capwap=1; |
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conn->process_packet=conn_process_packet; |
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conn->process_message=process_message; |
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conn->write_header = write_header; |
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conn->header_len = header_len; |
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} |
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/**
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* Create a conn object |
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* @param sock a socket |
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* @param addr the address associated |
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* @param qsize size of packet queue |
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* @return A pointer to the created object |
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* This function creates a conn obnject with queueing functionality |
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* for asynchronous operation.
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* To create a conn object without queue functionallity use #conn_create_noq. |
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*/ |
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struct cw_Conn * cw_conn_create(int sock, struct sockaddr * addr, int qsize) |
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{ |
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struct cw_Conn * conn;
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conn = malloc(sizeof (struct cw_Conn )); |
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if (!conn) |
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return NULL; |
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cw_conn_init(conn); |
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conn->sock=sock; |
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if (addr) |
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sock_copyaddr(&conn->addr,addr); |
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conn->fragman = fragman_create(); |
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if (conn->fragman==NULL){ |
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conn_destroy(conn); |
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return NULL; |
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} |
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conn->qsize=qsize; |
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if (qsize != 0){ |
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if (!(conn->q=malloc( sizeof(uint8_t *) * qsize))){ |
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conn_destroy(conn); |
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return NULL; |
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} |
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conn->qrpos=-1; |
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if (sem_init(&conn->q_sem,0,0)!=0){ |
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cw_log(LOG_ERR,"Fatal- Can't init semaphore for conn object: %s",strerror(errno)); |
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conn_destroy(conn); |
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return NULL; |
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}; |
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conn->recv_packet=conn_q_recv_packet; |
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conn->recv_packet_peek=conn_q_recv_packet_peek; |
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} |
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else{ |
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conn->recv_packet = conn_recv_packet; |
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conn->recv_packet_peek = conn_recv_packet_peek; |
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} |
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conn->send_packet = conn_send_packet; |
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/* conn->send_data_packet = conn_send_data_packet;*/ |
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conn->last_seqnum_received=-1; |
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conn->mtu=600; |
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conn->cur_packet=0; |
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conn->recv_timeout=1; |
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conn->seqnum=-1; |
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conn->write = conn->send_packet; |
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conn->read = conn->recv_packet; |
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/* conn->write_data = conn->send_data_packet; */ |
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conn->dtls_mtu = 600; |
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return conn; |
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} |
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