2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
18 #include "config.h" /* HAVE_SOCKADDR_STORAGE ? */
22 #include <sys/socket.h> /* struct sockaddr_storage */
25 #include "libnfs-zdr.h"
28 #if !defined(HAVE_SOCKADDR_STORAGE) && !defined(WIN32)
30 * RFC 2553: protocol-independent placeholder for socket addresses
32 #define _SS_MAXSIZE 128
33 #define _SS_ALIGNSIZE (sizeof(double))
34 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(unsigned char) * 2)
35 #define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(unsigned char) * 2 - \
36 _SS_PAD1SIZE - _SS_ALIGNSIZE)
38 struct sockaddr_storage
{
39 #ifdef HAVE_SOCKADDR_LEN
40 unsigned char ss_len
; /* address length */
41 unsigned char ss_family
; /* address family */
43 unsigned short ss_family
;
45 char __ss_pad1
[_SS_PAD1SIZE
];
46 double __ss_align
; /* force desired structure storage alignment */
47 char __ss_pad2
[_SS_PAD2SIZE
];
53 struct rpc_fragment
*next
;
58 #define RPC_CONTEXT_MAGIC 0xc6e46435
59 #define RPC_PARAM_UNDEFINED -1
74 /* buffer used for encoding RPC PDU */
78 struct rpc_pdu
*outqueue
;
79 struct sockaddr_storage udp_src
;
80 struct rpc_pdu
*waitpdu
;
86 /* special fields for UDP, which can sometimes be BROADCASTed */
88 struct sockaddr
*udp_dest
;
91 /* track the address we connect to so we can auto-reconnect on session failure */
92 struct sockaddr_storage s
;
95 /* fragment reassembly */
96 struct rpc_fragment
*fragments
;
98 /* parameters passable via URL */
105 struct rpc_pdu
*next
;
111 struct rpc_data outdata
;
116 /* function to decode the zdr reply data and buffer to decode into */
117 zdrproc_t zdr_decode_fn
;
118 caddr_t zdr_decode_buf
;
119 uint32_t zdr_decode_bufsize
;
122 struct rpc_pdu
*rpc_allocate_pdu(struct rpc_context
*rpc
, int program
, int version
, int procedure
, rpc_cb cb
, void *private_data
, zdrproc_t zdr_decode_fn
, int zdr_bufsize
);
123 void rpc_free_pdu(struct rpc_context
*rpc
, struct rpc_pdu
*pdu
);
124 int rpc_queue_pdu(struct rpc_context
*rpc
, struct rpc_pdu
*pdu
);
125 int rpc_get_pdu_size(char *buf
);
126 int rpc_process_pdu(struct rpc_context
*rpc
, char *buf
, int size
);
127 void rpc_error_all_pdus(struct rpc_context
*rpc
, char *error
);
129 void rpc_set_error(struct rpc_context
*rpc
, char *error_string
, ...);
130 void nfs_set_error(struct nfs_context
*nfs
, char *error_string
, ...);
132 const char *nfs_get_server(struct nfs_context
*nfs
);
133 const char *nfs_get_export(struct nfs_context
*nfs
);
135 /* we dont want to expose UDP to normal applications/users this is private to libnfs to use exclusively for broadcast RPC */
136 int rpc_bind_udp(struct rpc_context
*rpc
, char *addr
, int port
);
137 int rpc_set_udp_destination(struct rpc_context
*rpc
, char *addr
, int port
, int is_broadcast
);
138 struct rpc_context
*rpc_init_udp_context(void);
139 struct sockaddr
*rpc_get_recv_sockaddr(struct rpc_context
*rpc
);
141 void rpc_set_autoreconnect(struct rpc_context
*rpc
);
142 void rpc_unset_autoreconnect(struct rpc_context
*rpc
);
144 void rpc_set_tcp_syncnt(struct rpc_context
*rpc
, int v
);
145 void rpc_set_uid(struct rpc_context
*rpc
, int uid
);
146 void rpc_set_gid(struct rpc_context
*rpc
, int gid
);
148 int rpc_add_fragment(struct rpc_context
*rpc
, char *data
, uint64_t size
);
149 void rpc_free_all_fragments(struct rpc_context
*rpc
);
151 const struct nfs_fh3
*nfs_get_rootfh(struct nfs_context
*nfs
);