2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2008 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 two of the GNU 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 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
39 /* Forward referenced subroutines */
40 static bool record_cb(DCR *dcr, DEV_RECORD *rec);
43 /* Responses sent to the File daemon */
44 static char OK_data[] = "3000 OK data\n";
45 static char FD_error[] = "3000 error\n";
46 static char rec_header[] = "rechdr %ld %ld %ld %ld %ld";
49 * Read Data and send to File Daemon
50 * Returns: false on failure
53 bool do_read_data(JCR *jcr)
55 BSOCK *fd = jcr->file_bsock;
57 DCR *dcr = jcr->read_dcr;
59 Dmsg0(20, "Start read data.\n");
61 if (!bnet_set_buffer_size(fd, dcr->device->max_network_buffer_size, BNET_SETBUF_WRITE)) {
66 create_restore_volume_list(jcr);
67 if (jcr->NumReadVolumes == 0) {
68 Jmsg(jcr, M_FATAL, 0, _("No Volume names found for restore.\n"));
69 free_restore_volume_list(jcr);
74 Dmsg2(200, "Found %d volumes names to restore. First=%s\n", jcr->NumReadVolumes,
75 jcr->VolList->VolumeName);
77 /* Ready device for reading */
78 if (!acquire_device_for_read(dcr)) {
79 free_restore_volume_list(jcr);
84 /* Tell File daemon we will send data */
86 ok = read_records(dcr, record_cb, mount_next_read_volume);
88 /* Send end of data to FD */
91 if (!release_device(jcr->read_dcr)) {
95 free_restore_volume_list(jcr);
96 Dmsg0(30, "Done reading.\n");
101 * Called here for each record from read_records()
102 * Returns: true if OK
105 static bool record_cb(DCR *dcr, DEV_RECORD *rec)
108 BSOCK *fd = jcr->file_bsock;
111 char ec1[50], ec2[50];
113 if (rec->FileIndex < 0) {
116 Dmsg5(400, "Send to FD: SessId=%u SessTim=%u FI=%s Strm=%s, len=%d\n",
117 rec->VolSessionId, rec->VolSessionTime,
118 FI_to_ascii(ec1, rec->FileIndex),
119 stream_to_ascii(ec2, rec->Stream, rec->FileIndex),
122 /* Send record header to File daemon */
123 if (!fd->fsend(rec_header, rec->VolSessionId, rec->VolSessionTime,
124 rec->FileIndex, rec->Stream, rec->data_len)) {
125 Pmsg1(000, _(">filed: Error Hdr=%s\n"), fd->msg);
126 Jmsg1(jcr, M_FATAL, 0, _("Error sending to File daemon. ERR=%s\n"),
130 Dmsg1(400, ">filed: Hdr=%s\n", fd->msg);
134 /* Send data record to File daemon */
135 save_msg = fd->msg; /* save fd message pointer */
136 fd->msg = rec->data; /* pass data directly to the FD */
137 fd->msglen = rec->data_len;
138 Dmsg1(400, ">filed: send %d bytes data.\n", fd->msglen);
140 Pmsg1(000, _("Error sending to FD. ERR=%s\n"), fd->bstrerror());
141 Jmsg1(jcr, M_FATAL, 0, _("Error sending to File daemon. ERR=%s\n"),
146 fd->msg = save_msg; /* restore fd message pointer */