| 1 | /* |
| 2 | Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010 |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 3 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 General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | /* Example program using the highlevel async interface. |
| 19 | */ |
| 20 | |
| 21 | #define SERVER "10.1.1.27" |
| 22 | #define EXPORT "/VIRTUAL" |
| 23 | #define NFSFILE "/BOOKS/Classics/Dracula.djvu" |
| 24 | #define NFSDIR "/BOOKS/Classics/" |
| 25 | |
| 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <stdint.h> |
| 29 | #include <sys/types.h> |
| 30 | #include <sys/stat.h> |
| 31 | #include <unistd.h> |
| 32 | #include <fcntl.h> |
| 33 | #include <poll.h> |
| 34 | #include "libnfs.h" |
| 35 | |
| 36 | struct client { |
| 37 | char *server; |
| 38 | char *export; |
| 39 | uint32_t mount_port; |
| 40 | struct nfsfh *nfsfh; |
| 41 | int is_finished; |
| 42 | }; |
| 43 | |
| 44 | void nfs_opendir_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 45 | { |
| 46 | struct client *client = private_data; |
| 47 | struct nfsdir *nfsdir = data; |
| 48 | struct nfsdirent *nfsdirent; |
| 49 | |
| 50 | if (status < 0) { |
| 51 | printf("opendir failed with \"%s\"\n", (char *)data); |
| 52 | exit(10); |
| 53 | } |
| 54 | |
| 55 | printf("opendir successful\n"); |
| 56 | while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) { |
| 57 | printf("Inode:%d Name:%s\n", (int)nfsdirent->inode, nfsdirent->name); |
| 58 | } |
| 59 | nfs_closedir(nfs, nfsdir); |
| 60 | |
| 61 | client->is_finished = 1; |
| 62 | } |
| 63 | |
| 64 | void nfs_close_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 65 | { |
| 66 | struct client *client = private_data; |
| 67 | |
| 68 | if (status < 0) { |
| 69 | printf("close failed with \"%s\"\n", (char *)data); |
| 70 | exit(10); |
| 71 | } |
| 72 | |
| 73 | printf("close successful\n"); |
| 74 | printf("call opendir(%s)\n", NFSDIR); |
| 75 | if (nfs_opendir_async(nfs, NFSDIR, nfs_opendir_cb, client) != 0) { |
| 76 | printf("Failed to start async nfs close\n"); |
| 77 | exit(10); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | void nfs_fstat_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 82 | { |
| 83 | struct client *client = private_data; |
| 84 | struct stat *st; |
| 85 | |
| 86 | if (status < 0) { |
| 87 | printf("fstat call failed with \"%s\"\n", (char *)data); |
| 88 | exit(10); |
| 89 | } |
| 90 | |
| 91 | printf("Got reply from server for fstat(%s).\n", NFSFILE); |
| 92 | st = (struct stat *)data; |
| 93 | printf("Mode %04o\n", st->st_mode); |
| 94 | printf("Size %d\n", (int)st->st_size); |
| 95 | printf("Inode %04o\n", (int)st->st_ino); |
| 96 | |
| 97 | printf("Close file\n"); |
| 98 | if (nfs_close_async(nfs, client->nfsfh, nfs_close_cb, client) != 0) { |
| 99 | printf("Failed to start async nfs close\n"); |
| 100 | exit(10); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | void nfs_read_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 105 | { |
| 106 | struct client *client = private_data; |
| 107 | char *read_data; |
| 108 | int i; |
| 109 | |
| 110 | if (status < 0) { |
| 111 | printf("read failed with \"%s\"\n", (char *)data); |
| 112 | exit(10); |
| 113 | } |
| 114 | |
| 115 | printf("read successful with %d bytes of data\n", status); |
| 116 | read_data = data; |
| 117 | for (i=0;i<16;i++) { |
| 118 | printf("%02x ", read_data[i]&0xff); |
| 119 | } |
| 120 | printf("\n"); |
| 121 | printf("Fstat file :%s\n", NFSFILE); |
| 122 | if (nfs_fstat_async(nfs, client->nfsfh, nfs_fstat_cb, client) != 0) { |
| 123 | printf("Failed to start async nfs fstat\n"); |
| 124 | exit(10); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | void nfs_open_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 129 | { |
| 130 | struct client *client = private_data; |
| 131 | struct nfsfh *nfsfh; |
| 132 | |
| 133 | if (status < 0) { |
| 134 | printf("open call failed with \"%s\"\n", (char *)data); |
| 135 | exit(10); |
| 136 | } |
| 137 | |
| 138 | nfsfh = data; |
| 139 | client->nfsfh = nfsfh; |
| 140 | printf("Got reply from server for open(%s). Handle:%p\n", NFSFILE, data); |
| 141 | printf("Read first 64 bytes\n"); |
| 142 | if (nfs_pread_async(nfs, nfsfh, 0, 64, nfs_read_cb, client) != 0) { |
| 143 | printf("Failed to start async nfs open\n"); |
| 144 | exit(10); |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | void nfs_stat_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 149 | { |
| 150 | struct client *client = private_data; |
| 151 | struct stat *st; |
| 152 | |
| 153 | if (status < 0) { |
| 154 | printf("stat call failed with \"%s\"\n", (char *)data); |
| 155 | exit(10); |
| 156 | } |
| 157 | |
| 158 | printf("Got reply from server for stat(%s).\n", NFSFILE); |
| 159 | st = (struct stat *)data; |
| 160 | printf("Mode %04o\n", st->st_mode); |
| 161 | printf("Size %d\n", (int)st->st_size); |
| 162 | printf("Inode %04o\n", (int)st->st_ino); |
| 163 | |
| 164 | printf("Open file for reading :%s\n", NFSFILE); |
| 165 | if (nfs_open_async(nfs, NFSFILE, O_RDONLY, nfs_open_cb, client) != 0) { |
| 166 | printf("Failed to start async nfs open\n"); |
| 167 | exit(10); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | void nfs_mount_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 172 | { |
| 173 | struct client *client = private_data; |
| 174 | |
| 175 | if (status < 0) { |
| 176 | printf("mount/mnt call failed with \"%s\"\n", (char *)data); |
| 177 | exit(10); |
| 178 | } |
| 179 | |
| 180 | printf("Got reply from server for MOUNT/MNT procedure.\n"); |
| 181 | printf("Stat file :%s\n", NFSFILE); |
| 182 | if (nfs_stat_async(nfs, NFSFILE, nfs_stat_cb, client) != 0) { |
| 183 | printf("Failed to start async nfs stat\n"); |
| 184 | exit(10); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | |
| 189 | |
| 190 | int main(int argc _U_, char *argv[] _U_) |
| 191 | { |
| 192 | struct nfs_context *nfs; |
| 193 | struct pollfd pfd; |
| 194 | int ret; |
| 195 | struct client client; |
| 196 | |
| 197 | client.server = SERVER; |
| 198 | client.export = EXPORT; |
| 199 | client.is_finished = 0; |
| 200 | |
| 201 | nfs = nfs_init_context(); |
| 202 | if (nfs == NULL) { |
| 203 | printf("failed to init context\n"); |
| 204 | exit(10); |
| 205 | } |
| 206 | |
| 207 | ret = nfs_mount_async(nfs, client.server, client.export, nfs_mount_cb, &client); |
| 208 | if (ret != 0) { |
| 209 | printf("Failed to start async nfs mount\n"); |
| 210 | exit(10); |
| 211 | } |
| 212 | |
| 213 | for (;;) { |
| 214 | pfd.fd = nfs_get_fd(nfs); |
| 215 | pfd.events = nfs_which_events(nfs); |
| 216 | |
| 217 | if (poll(&pfd, 1, -1) < 0) { |
| 218 | printf("Poll failed"); |
| 219 | exit(10); |
| 220 | } |
| 221 | if (nfs_service(nfs, pfd.revents) < 0) { |
| 222 | printf("nfs_service failed\n"); |
| 223 | break; |
| 224 | } |
| 225 | if (client.is_finished) { |
| 226 | break; |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | nfs_destroy_context(nfs); |
| 231 | printf("nfsclient finished\n"); |
| 232 | return 0; |
| 233 | } |