2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2010 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version three of the GNU Affero General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Affero General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
29 * Read code for Storage daemon
31 * Kern Sibbald, November MM
38 /* Forward referenced subroutines */
39 static bool record_cb(DCR *dcr, DEV_RECORD *rec);
42 /* Responses sent to the File daemon */
43 static char OK_data[] = "3000 OK data\n";
44 static char FD_error[] = "3000 error\n";
45 static char rec_header[] = "rechdr %ld %ld %ld %ld %ld";
48 * Read Data and send to File Daemon
49 * Returns: false on failure
52 bool do_read_data(JCR *jcr)
54 BSOCK *fd = jcr->file_bsock;
56 DCR *dcr = jcr->read_dcr;
58 Dmsg0(20, "Start read data.\n");
60 if (!bnet_set_buffer_size(fd, dcr->device->max_network_buffer_size, BNET_SETBUF_WRITE)) {
64 if (jcr->NumReadVolumes == 0) {
65 Jmsg(jcr, M_FATAL, 0, _("No Volume names found for restore.\n"));
70 Dmsg2(200, "Found %d volumes names to restore. First=%s\n", jcr->NumReadVolumes,
71 jcr->VolList->VolumeName);
73 /* Ready device for reading */
74 if (!acquire_device_for_read(dcr)) {
79 /* Tell File daemon we will send data */
81 jcr->setJobStatus(JS_Running);
82 dir_send_job_status(jcr);
83 ok = read_records(dcr, record_cb, mount_next_read_volume);
85 /* Send end of data to FD */
88 if (!release_device(jcr->read_dcr)) {
92 Dmsg0(30, "Done reading.\n");
97 * Called here for each record from read_records()
101 static bool record_cb(DCR *dcr, DEV_RECORD *rec)
104 BSOCK *fd = jcr->file_bsock;
107 char ec1[50], ec2[50];
109 if (rec->FileIndex < 0) {
112 Dmsg5(400, "Send to FD: SessId=%u SessTim=%u FI=%s Strm=%s, len=%d\n",
113 rec->VolSessionId, rec->VolSessionTime,
114 FI_to_ascii(ec1, rec->FileIndex),
115 stream_to_ascii(ec2, rec->Stream, rec->FileIndex),
118 /* Send record header to File daemon */
119 if (!fd->fsend(rec_header, rec->VolSessionId, rec->VolSessionTime,
120 rec->FileIndex, rec->Stream, rec->data_len)) {
121 Pmsg1(000, _(">filed: Error Hdr=%s\n"), fd->msg);
122 Jmsg1(jcr, M_FATAL, 0, _("Error sending to File daemon. ERR=%s\n"),
126 Dmsg1(400, ">filed: Hdr=%s\n", fd->msg);
130 /* Send data record to File daemon */
131 save_msg = fd->msg; /* save fd message pointer */
132 fd->msg = rec->data; /* pass data directly to the FD */
133 fd->msglen = rec->data_len;
134 Dmsg1(400, ">filed: send %d bytes data.\n", fd->msglen);
136 Pmsg1(000, _("Error sending to FD. ERR=%s\n"), fd->bstrerror());
137 Jmsg1(jcr, M_FATAL, 0, _("Error sending to File daemon. ERR=%s\n"),
142 fd->msg = save_msg; /* restore fd message pointer */