| 1 | /* |
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| 2 | * Copyright (C) 2003 - 2004 Mike Wray <mike.wray@hp.com>. |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or modify |
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| 5 | * it under the terms of the GNU Lesser General Public License as |
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| 6 | * published by the Free Software Foundation; either version 2.1 of the |
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| 7 | * License, or (at your option) any later version. This library is |
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| 8 | * distributed in the hope that it will be useful, but WITHOUT ANY |
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| 9 | * WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 10 | * FITNESS FOR A PARTICULAR PURPOSE. |
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| 11 | * See the GNU Lesser General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU Lesser General Public License |
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| 14 | * along with this library; if not, write to the Free Software Foundation, |
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| 15 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 16 | */ |
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| 17 | #ifndef _VNET_CONNECTION_H_ |
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| 18 | #define _VNET_CONNECTION_H_ |
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| 19 | |
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| 20 | #include <netinet/in.h> |
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| 21 | |
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| 22 | #include "iostream.h" |
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| 23 | #include "select.h" |
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| 24 | |
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| 25 | /** A connection. |
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| 26 | * The underlying transport is a socket. |
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| 27 | * Contains in and out streams using the socket. |
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| 28 | */ |
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| 29 | typedef struct Conn { |
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| 30 | struct sockaddr_in addr; |
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| 31 | int sock; |
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| 32 | int type; |
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| 33 | int mode; // select mode |
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| 34 | IOStream *in; |
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| 35 | IOStream *out; |
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| 36 | int (*fn)(struct Conn *conn, int mode); |
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| 37 | void *data; |
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| 38 | } Conn; |
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| 39 | |
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| 40 | typedef struct ConnList { |
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| 41 | Conn *conn; |
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| 42 | struct ConnList *next; |
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| 43 | } ConnList; |
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| 44 | |
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| 45 | extern ConnList * ConnList_add(ConnList *l, Conn *conn); |
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| 46 | extern ConnList * ConnList_del(ConnList *l, Conn *conn); |
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| 47 | extern void ConnList_close(ConnList *l); |
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| 48 | extern void ConnList_select(ConnList *l, SelectSet *set); |
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| 49 | extern ConnList * ConnList_handle(ConnList *l, SelectSet *set); |
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| 50 | |
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| 51 | extern Conn * Conn_new(int (*fn)(struct Conn *conn, int mode), void *data); |
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| 52 | extern int Conn_init(Conn *conn, int sock, int type, int mode, struct sockaddr_in addr); |
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| 53 | extern int Conn_connect(Conn *conn, int type, struct in_addr ipaddr, uint16_t port); |
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| 54 | extern void Conn_select(Conn *conn, SelectSet *set); |
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| 55 | extern int Conn_handle(Conn *conn, SelectSet *set); |
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| 56 | extern void Conn_close(Conn *conn); |
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| 57 | extern int Conn_socket(int socktype, uint32_t saddr, uint32_t port, int flags, Conn **val); |
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| 58 | |
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| 59 | /** Socket flags. */ |
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| 60 | enum { |
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| 61 | VSOCK_REUSE = 1, |
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| 62 | VSOCK_BIND = 2, |
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| 63 | VSOCK_CONNECT = 4, |
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| 64 | VSOCK_BROADCAST = 8, |
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| 65 | VSOCK_MULTICAST = 16, |
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| 66 | }; |
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| 67 | |
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| 68 | extern int create_socket(int socktype, uint32_t saddr, uint32_t port, int flags, int *sock); |
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| 69 | extern int setsock_reuse(int sock, int val); |
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| 70 | extern int setsock_broadcast(int sock, int val); |
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| 71 | extern int setsock_multicast(int sock, uint32_t iaddr, uint32_t maddr); |
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| 72 | extern int setsock_multicast_ttl(int sock, uint8_t ttl); |
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| 73 | extern int setsock_pktinfo(int sock, int val); |
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| 74 | extern char * socket_flags(int flags); |
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| 75 | |
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| 76 | #endif /* ! _VNET_CONNECTION_H_ */ |
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