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84004dbf RS |
1 | /* |
2 | Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com> | |
3 | ||
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. | |
8 | ||
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. | |
13 | ||
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/>. | |
16 | */ | |
dd8fc175 | 17 | #include <rpc/xdr.h> |
84004dbf RS |
18 | #include <rpc/auth.h> |
19 | ||
20 | struct rpc_context { | |
21 | int fd; | |
22 | int is_connected; | |
23 | ||
24 | char *error_string; | |
25 | ||
26 | rpc_cb connect_cb; | |
27 | void *connect_data; | |
28 | ||
29 | AUTH *auth; | |
30 | unsigned long xid; | |
31 | ||
32 | /* buffer used for encoding RPC PDU */ | |
33 | char *encodebuf; | |
34 | int encodebuflen; | |
35 | ||
36 | struct rpc_pdu *outqueue; | |
2d0c44ce | 37 | struct sockaddr_storage udp_src; |
84004dbf RS |
38 | struct rpc_pdu *waitpdu; |
39 | ||
84004dbf | 40 | int inpos; |
cdb19ec1 | 41 | int insize; |
84004dbf | 42 | char *inbuf; |
d16a3ca4 RS |
43 | |
44 | /* special fields for UDP, which can sometimes be BROADCASTed */ | |
45 | int is_udp; | |
a9b24162 | 46 | struct sockaddr *udp_dest; |
2ae46066 | 47 | int is_broadcast; |
1744ef90 RS |
48 | |
49 | /* track the address we connect to so we can auto-reconnect on session failure */ | |
50 | struct sockaddr_storage s; | |
51 | int auto_reconnect; | |
84004dbf RS |
52 | }; |
53 | ||
54 | struct rpc_pdu { | |
55 | struct rpc_pdu *next; | |
56 | ||
57 | unsigned long xid; | |
58 | XDR xdr; | |
59 | ||
60 | int written; | |
61 | struct rpc_data outdata; | |
62 | ||
63 | rpc_cb cb; | |
64 | void *private_data; | |
65 | ||
66 | /* function to decode the xdr reply data and buffer to decode into */ | |
67 | xdrproc_t xdr_decode_fn; | |
68 | caddr_t xdr_decode_buf; | |
69 | int xdr_decode_bufsize; | |
70 | }; | |
71 | ||
72 | struct rpc_pdu *rpc_allocate_pdu(struct rpc_context *rpc, int program, int version, int procedure, rpc_cb cb, void *private_data, xdrproc_t xdr_decode_fn, int xdr_bufsize); | |
73 | void rpc_free_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu); | |
74 | int rpc_queue_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu); | |
75 | int rpc_get_pdu_size(char *buf); | |
76 | int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size); | |
77 | void rpc_error_all_pdus(struct rpc_context *rpc, char *error); | |
78 | ||
1896d37b RS |
79 | void rpc_set_error(struct rpc_context *rpc, char *error_string, ...); |
80 | void nfs_set_error(struct nfs_context *nfs, char *error_string, ...); | |
81 | ||
df5af25f | 82 | struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs); |
b077fdeb RS |
83 | const char *nfs_get_server(struct nfs_context *nfs); |
84 | const char *nfs_get_export(struct nfs_context *nfs); | |
1896d37b | 85 | |
485bc9b9 RS |
86 | /* we dont want to expose UDP to normal applications/users this is private to libnfs to use exclusively for broadcast RPC */ |
87 | int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port); | |
5bf60dc6 | 88 | int rpc_set_udp_destination(struct rpc_context *rpc, char *addr, int port, int is_broadcast); |
9e00b8c6 | 89 | struct rpc_context *rpc_init_udp_context(void); |
c481da67 RS |
90 | struct sockaddr *rpc_get_recv_sockaddr(struct rpc_context *rpc); |
91 | ||
1744ef90 RS |
92 | void rpc_set_autoreconnect(struct rpc_context *rpc); |
93 | void rpc_unset_autoreconnect(struct rpc_context *rpc); | |
94 |