Commit | Line | Data |
---|---|---|
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 | */ | |
763cd6e3 RS |
17 | #include <sys/socket.h> /* struct sockaddr_storage */ |
18 | ||
19 | #include "libnfs-zdr.h" | |
84004dbf | 20 | |
d678b73e RS |
21 | struct rpc_fragment { |
22 | struct rpc_fragment *next; | |
183451cf | 23 | uint64_t size; |
d678b73e RS |
24 | char *data; |
25 | }; | |
26 | ||
f3a75078 RS |
27 | #define RPC_CONTEXT_MAGIC 0xc6e46435 |
28 | ||
84004dbf | 29 | struct rpc_context { |
f3a75078 | 30 | uint32_t magic; |
84004dbf RS |
31 | int fd; |
32 | int is_connected; | |
33 | ||
34 | char *error_string; | |
35 | ||
36 | rpc_cb connect_cb; | |
37 | void *connect_data; | |
38 | ||
67ba2239 | 39 | struct AUTH *auth; |
84004dbf RS |
40 | unsigned long xid; |
41 | ||
42 | /* buffer used for encoding RPC PDU */ | |
43 | char *encodebuf; | |
44 | int encodebuflen; | |
45 | ||
46 | struct rpc_pdu *outqueue; | |
2d0c44ce | 47 | struct sockaddr_storage udp_src; |
84004dbf RS |
48 | struct rpc_pdu *waitpdu; |
49 | ||
d14e2838 RS |
50 | uint32_t inpos; |
51 | uint32_t insize; | |
84004dbf | 52 | char *inbuf; |
d16a3ca4 RS |
53 | |
54 | /* special fields for UDP, which can sometimes be BROADCASTed */ | |
55 | int is_udp; | |
a9b24162 | 56 | struct sockaddr *udp_dest; |
2ae46066 | 57 | int is_broadcast; |
1744ef90 RS |
58 | |
59 | /* track the address we connect to so we can auto-reconnect on session failure */ | |
60 | struct sockaddr_storage s; | |
61 | int auto_reconnect; | |
d678b73e RS |
62 | |
63 | /* fragment reassembly */ | |
64 | struct rpc_fragment *fragments; | |
84004dbf RS |
65 | }; |
66 | ||
67 | struct rpc_pdu { | |
68 | struct rpc_pdu *next; | |
69 | ||
70 | unsigned long xid; | |
763cd6e3 | 71 | ZDR zdr; |
84004dbf | 72 | |
d14e2838 | 73 | uint32_t written; |
84004dbf RS |
74 | struct rpc_data outdata; |
75 | ||
76 | rpc_cb cb; | |
77 | void *private_data; | |
78 | ||
763cd6e3 RS |
79 | /* function to decode the zdr reply data and buffer to decode into */ |
80 | zdrproc_t zdr_decode_fn; | |
81 | caddr_t zdr_decode_buf; | |
d14e2838 | 82 | uint32_t zdr_decode_bufsize; |
84004dbf RS |
83 | }; |
84 | ||
763cd6e3 | 85 | 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); |
84004dbf RS |
86 | void rpc_free_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu); |
87 | int rpc_queue_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu); | |
88 | int rpc_get_pdu_size(char *buf); | |
89 | int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size); | |
90 | void rpc_error_all_pdus(struct rpc_context *rpc, char *error); | |
91 | ||
1896d37b RS |
92 | void rpc_set_error(struct rpc_context *rpc, char *error_string, ...); |
93 | void nfs_set_error(struct nfs_context *nfs, char *error_string, ...); | |
94 | ||
b077fdeb RS |
95 | const char *nfs_get_server(struct nfs_context *nfs); |
96 | const char *nfs_get_export(struct nfs_context *nfs); | |
1896d37b | 97 | |
485bc9b9 RS |
98 | /* we dont want to expose UDP to normal applications/users this is private to libnfs to use exclusively for broadcast RPC */ |
99 | int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port); | |
5bf60dc6 | 100 | int rpc_set_udp_destination(struct rpc_context *rpc, char *addr, int port, int is_broadcast); |
9e00b8c6 | 101 | struct rpc_context *rpc_init_udp_context(void); |
c481da67 RS |
102 | struct sockaddr *rpc_get_recv_sockaddr(struct rpc_context *rpc); |
103 | ||
1744ef90 RS |
104 | void rpc_set_autoreconnect(struct rpc_context *rpc); |
105 | void rpc_unset_autoreconnect(struct rpc_context *rpc); | |
106 | ||
183451cf | 107 | int rpc_add_fragment(struct rpc_context *rpc, char *data, uint64_t size); |
d678b73e RS |
108 | void rpc_free_all_fragments(struct rpc_context *rpc); |
109 | ||
8724c833 | 110 | const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs); |