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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 | ||
d678b73e RS |
20 | struct rpc_fragment { |
21 | struct rpc_fragment *next; | |
183451cf | 22 | uint64_t size; |
d678b73e RS |
23 | char *data; |
24 | }; | |
25 | ||
84004dbf RS |
26 | struct rpc_context { |
27 | int fd; | |
28 | int is_connected; | |
29 | ||
30 | char *error_string; | |
31 | ||
32 | rpc_cb connect_cb; | |
33 | void *connect_data; | |
34 | ||
35 | AUTH *auth; | |
36 | unsigned long xid; | |
37 | ||
38 | /* buffer used for encoding RPC PDU */ | |
39 | char *encodebuf; | |
40 | int encodebuflen; | |
41 | ||
42 | struct rpc_pdu *outqueue; | |
2d0c44ce | 43 | struct sockaddr_storage udp_src; |
84004dbf RS |
44 | struct rpc_pdu *waitpdu; |
45 | ||
84004dbf | 46 | int inpos; |
cdb19ec1 | 47 | int insize; |
84004dbf | 48 | char *inbuf; |
d16a3ca4 RS |
49 | |
50 | /* special fields for UDP, which can sometimes be BROADCASTed */ | |
51 | int is_udp; | |
a9b24162 | 52 | struct sockaddr *udp_dest; |
2ae46066 | 53 | int is_broadcast; |
1744ef90 RS |
54 | |
55 | /* track the address we connect to so we can auto-reconnect on session failure */ | |
56 | struct sockaddr_storage s; | |
57 | int auto_reconnect; | |
d678b73e RS |
58 | |
59 | /* fragment reassembly */ | |
60 | struct rpc_fragment *fragments; | |
84004dbf RS |
61 | }; |
62 | ||
63 | struct rpc_pdu { | |
64 | struct rpc_pdu *next; | |
65 | ||
66 | unsigned long xid; | |
67 | XDR xdr; | |
68 | ||
69 | int written; | |
70 | struct rpc_data outdata; | |
71 | ||
72 | rpc_cb cb; | |
73 | void *private_data; | |
74 | ||
75 | /* function to decode the xdr reply data and buffer to decode into */ | |
76 | xdrproc_t xdr_decode_fn; | |
77 | caddr_t xdr_decode_buf; | |
78 | int xdr_decode_bufsize; | |
79 | }; | |
80 | ||
81 | 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); | |
82 | void rpc_free_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu); | |
83 | int rpc_queue_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu); | |
84 | int rpc_get_pdu_size(char *buf); | |
85 | int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size); | |
86 | void rpc_error_all_pdus(struct rpc_context *rpc, char *error); | |
87 | ||
1896d37b RS |
88 | void rpc_set_error(struct rpc_context *rpc, char *error_string, ...); |
89 | void nfs_set_error(struct nfs_context *nfs, char *error_string, ...); | |
90 | ||
b077fdeb RS |
91 | const char *nfs_get_server(struct nfs_context *nfs); |
92 | const char *nfs_get_export(struct nfs_context *nfs); | |
1896d37b | 93 | |
485bc9b9 RS |
94 | /* we dont want to expose UDP to normal applications/users this is private to libnfs to use exclusively for broadcast RPC */ |
95 | int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port); | |
5bf60dc6 | 96 | int rpc_set_udp_destination(struct rpc_context *rpc, char *addr, int port, int is_broadcast); |
9e00b8c6 | 97 | struct rpc_context *rpc_init_udp_context(void); |
c481da67 RS |
98 | struct sockaddr *rpc_get_recv_sockaddr(struct rpc_context *rpc); |
99 | ||
1744ef90 RS |
100 | void rpc_set_autoreconnect(struct rpc_context *rpc); |
101 | void rpc_unset_autoreconnect(struct rpc_context *rpc); | |
102 | ||
183451cf | 103 | int rpc_add_fragment(struct rpc_context *rpc, char *data, uint64_t size); |
d678b73e RS |
104 | void rpc_free_all_fragments(struct rpc_context *rpc); |
105 | ||
8724c833 | 106 | const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs); |