[1174] | 1 | /* $Id: libmondo-stream.c 1548 2007-07-23 23:39:36Z bruno $
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[1] | 2 |
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| 3 | ...tools for talking to tapes, Monitas streams, etc.
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| 4 | */
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| 5 |
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[1174] | 6 | /*
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| 7 | *
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[1] | 8 | * @file
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| 9 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
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| 10 | */
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| 11 |
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[1174] | 12 | #include <unistd.h>
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| 13 |
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[1] | 14 | #include "my-stuff.h"
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[1080] | 15 | #include "mr_mem.h"
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[1123] | 16 | #include "mr_msg.h"
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[1369] | 17 | #include "mr_list.h"
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[1548] | 18 | #include "mr_gettext.h"
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[1174] | 19 |
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[1] | 20 | #include "mondostructures.h"
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| 21 | #include "libmondo-devices.h"
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| 22 | #include "libmondo-stream.h"
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| 23 | #include "libmondo-string-EXT.h"
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| 24 | #include "libmondo-files-EXT.h"
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[1174] | 25 | #include "newt-specific-EXT.h"
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[1] | 26 | #include "libmondo-fork-EXT.h"
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| 27 | #include "libmondo-tools-EXT.h"
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| 28 | #include "libmondo-fifo-EXT.h"
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| 29 |
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| 30 | #define EXTRA_TAPE_CHECKSUMS
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| 31 |
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| 32 | /*@unused@*/
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[128] | 33 | //static char cvsid[] = "$Id: libmondo-stream.c 1548 2007-07-23 23:39:36Z bruno $";
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[1] | 34 | extern bool g_sigpipe;
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| 35 | extern int g_tape_buffer_size_MB;
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| 36 |
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[948] | 37 | extern char *g_getfacl;
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| 38 | extern char *g_getfattr;
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[1362] | 39 | extern char *MONDO_LOGFILE;
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[948] | 40 |
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[1] | 41 | /**
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| 42 | * @addtogroup globalGroup
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| 43 | * @{
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| 44 | */
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| 45 | /**
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| 46 | * The file pointer for the opened tape/CD stream.
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| 47 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 48 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 49 | * closeout_tape(), and closeout_cdstream().
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| 50 | */
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| 51 | FILE *g_tape_stream = NULL;
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| 52 |
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| 53 |
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| 54 | /**
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| 55 | * The position (in kilobytes) where we are on the tape.
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| 56 | */
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| 57 | long long g_tape_posK = 0;
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| 58 |
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| 59 | /**
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| 60 | * The current media number we're using. This value is 1-based.
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| 61 | */
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[128] | 62 | int g_current_media_number = -1;
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[1] | 63 |
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| 64 | /**
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[1362] | 65 | * An entry in the tape catalog.
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[1] | 66 | */
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[1362] | 67 | struct s_tapecat_entry {
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| 68 | /**
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| 69 | * The type of archive it is (afioball, slice, or something else).
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| 70 | */
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| 71 | t_archtype type;
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[1] | 72 |
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[1362] | 73 | /**
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| 74 | * The filelist number or biggiefile (not slice!) number.
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| 75 | */
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| 76 | int number;
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[1] | 77 |
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[1362] | 78 | /**
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| 79 | * The slice number if it's a biggiefile.
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| 80 | */
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| 81 | long aux;
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[1] | 82 |
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[1362] | 83 | /**
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| 84 | * The tape position at the point this entry was added.
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| 85 | */
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| 86 | long long tape_posK;
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[1] | 87 |
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[1362] | 88 | /**
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| 89 | * The filename of the file cataloged here.
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| 90 | */
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| 91 | char *fname;
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| 92 | };
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[1] | 93 |
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| 94 |
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[1362] | 95 | /*
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| 96 | * The tape catalog that keeps track of files written to tape.
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| 97 | * made of a list of @p s_tapecat_entry.
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| 98 | * */
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[1369] | 99 | static struct mr_list *tapecatalog;
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[1] | 100 |
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[1362] | 101 | /* function to free the fname field allocated in te */
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| 102 | static void mr_free_te(void *data) {
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| 103 |
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| 104 | struct s_tapecat_entry *te = NULL;
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| 105 |
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| 106 | te = (struct s_tapecat_entry *)data;
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| 107 | mr_free(te->fname);
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| 108 | }
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| 109 |
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| 110 | /* @} - end of globalGroup */
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| 111 |
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| 112 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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| 113 |
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| 114 |
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[1] | 115 | /**
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| 116 | * @addtogroup streamGroup
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| 117 | * @{
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| 118 | */
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| 119 | /**
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| 120 | * Close the global output file descriptor which Mondo has used to read
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| 121 | * from the CD stream.
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| 122 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 123 | * @return 0 for success, nonzero for failure.
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| 124 | * @note This should be called by restore processes only.
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| 125 | */
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[128] | 126 | int closein_cdstream(struct s_bkpinfo *bkpinfo)
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[1] | 127 | {
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[128] | 128 | return (closein_tape(bkpinfo));
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[1] | 129 | }
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| 130 |
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| 131 |
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| 132 | /**
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| 133 | * Close the global output file descriptor which Mondo has used to read
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| 134 | * from buffer or dd, which read from the tape.
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| 135 | * @param bkpinfo The backup information structure. Unused.
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| 136 | * @return 0 for success, nonzero for failure.
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| 137 | * @note This should be called by restore processes only.
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| 138 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 139 | * @bug @p bkpinfo parameter is unused.
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| 140 | */
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[128] | 141 | int closein_tape(struct s_bkpinfo *bkpinfo)
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[1] | 142 | {
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[128] | 143 | /*@ int's ******************************************************* */
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| 144 | int retval = 0;
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| 145 | int res = 0;
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| 146 | int ctrl_chr = '\0';
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[1] | 147 |
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[128] | 148 | /*@ buffers ***************************************************** */
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| 149 | char fname[MAX_STR_LEN];
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[1] | 150 |
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[128] | 151 | /*@ long long's ************************************************* */
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| 152 | long long size;
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| 153 | char *blk;
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| 154 | int i;
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[1] | 155 |
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[1080] | 156 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 157 |
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[128] | 158 | log_it("closein_tape() -- entering");
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| 159 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 160 | retval += res;
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| 161 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 162 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 163 | }
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| 164 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 165 | retval += res;
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| 166 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 167 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 168 | }
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| 169 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 170 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 171 | }
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| 172 | sleep(1);
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[1175] | 173 | sync();
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[128] | 174 | sleep(1);
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| 175 | paranoid_pclose(g_tape_stream);
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| 176 | log_it("closein_tape() -- leaving");
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| 177 | if (!bkpinfo->please_dont_eject) {
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| 178 | eject_device(bkpinfo->media_device);
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| 179 | }
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[1080] | 180 | mr_free(blk);
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[1369] | 181 | mr_list_free(tapecatalog);
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[128] | 182 | return (retval);
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[1] | 183 | }
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| 184 |
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| 185 |
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| 186 |
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| 187 | /**
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| 188 | * Close the global output file descriptor which Mondo has been using to write
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| 189 | * to the tape device (via buffer or dd).
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| 190 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 191 | * @return 0 for success, nonzero for failure.
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| 192 | * @note This should be called by backup processes only.
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| 193 | */
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[128] | 194 | int closeout_tape(struct s_bkpinfo *bkpinfo)
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[1] | 195 | {
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[128] | 196 | /*@ int's ******************************************************* */
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| 197 | int retval = 0;
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[1] | 198 |
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[128] | 199 | /*@ long long's ************************************************* */
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[1175] | 200 | int i = 0;
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| 201 | char *blk = NULL;
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[1362] | 202 | struct mr_list_elt *elt = NULL;
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| 203 | struct s_tapecat_entry *te = NULL;
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[1] | 204 |
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[1080] | 205 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 206 |
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[128] | 207 | sleep(1);
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[1175] | 208 | sync();
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[128] | 209 | sleep(1);
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| 210 | log_it("closeout_tape() -- entering");
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| 211 | retval +=
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[684] | 212 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[128] | 213 | BLK_END_OF_BACKUP);
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[684] | 214 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[1175] | 215 | /* write 1MB of crap */
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[128] | 216 | for (i = 0; i < 256 * 1024; i++) {
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| 217 | blk[i] = (int) (random() & 0xFF);
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| 218 | }
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| 219 | for (i = 0; i < 4 * 8; i++) {
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| 220 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 221 | if (should_we_write_to_next_tape
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[1365] | 222 | (bkpinfo->media_size, (off_t)256 * 1024)) {
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[128] | 223 | start_to_write_to_next_tape(bkpinfo);
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| 224 | }
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| 225 | }
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| 226 | sleep(2);
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| 227 | paranoid_pclose(g_tape_stream);
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| 228 | log_it("closeout_tape() -- leaving");
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[1369] | 229 | elt = tapecatalog->first;
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[1362] | 230 | while (elt != NULL) {
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| 231 | te = (struct s_tapecat_entry *)elt->data;
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[128] | 232 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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[1362] | 233 | (te->type == fileset) ? "fileset" : "bigslice",
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| 234 | te->number, te->aux, te->tape_posK);
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| 235 | i++;
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| 236 | elt = elt->next;
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[128] | 237 | }
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[1080] | 238 | mr_free(blk);
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[1369] | 239 | mr_list_free(tapecatalog);
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[128] | 240 | return (retval);
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[1] | 241 | }
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| 242 |
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| 243 |
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| 244 |
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[128] | 245 | bool mt_says_tape_exists(char *dev)
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[1] | 246 | {
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[128] | 247 | char *command;
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| 248 | int res;
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[1] | 249 |
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[1175] | 250 | mr_asprintf(&command, "mt -f %s status", dev);
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[128] | 251 | res = run_program_and_log_output(command, 1);
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[1080] | 252 | mr_free(command);
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[128] | 253 | if (res) {
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| 254 | return (FALSE);
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| 255 | } else {
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| 256 | return (TRUE);
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| 257 | }
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[1] | 258 | }
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| 259 |
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| 260 |
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| 261 |
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| 262 | /**
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| 263 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 264 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 265 | * @param dev Where to put the found tape device.
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| 266 | * @param siz Where to put the tape size (a string like "4GB")
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| 267 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 268 | */
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[128] | 269 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 270 | {
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[128] | 271 | char tmp[MAX_STR_LEN];
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[1175] | 272 | char *command = NULL;
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[128] | 273 | char cdr_exe[MAX_STR_LEN];
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| 274 | int res;
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[1] | 275 |
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[128] | 276 | log_to_screen("I am looking for your tape streamer. Please wait.");
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| 277 | dev[0] = siz[0] = '\0';
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| 278 | if (find_home_of_exe("cdrecord")) {
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| 279 | strcpy(cdr_exe, "cdrecord");
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| 280 | } else {
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| 281 | strcpy(cdr_exe, "dvdrecord");
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[1] | 282 | }
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[1175] | 283 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[128] | 284 | cdr_exe);
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| 285 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 286 | mr_free(command);
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[128] | 287 | if (atoi(tmp) != 1) {
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| 288 | log_it
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| 289 | ("Either too few or too many tape streamers for me to detect...");
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| 290 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 291 | return 1;
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| 292 | }
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[1175] | 293 | mr_asprintf(&command,
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[128] | 294 | "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | cut -d' ' -f2 | head -n1",
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| 295 | cdr_exe);
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| 296 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 297 | mr_free(command);
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[128] | 298 | if (strlen(tmp) < 2) {
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| 299 | log_it("Could not find tape device");
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| 300 | return 1;
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| 301 | }
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[1175] | 302 | mr_asprintf(&command,
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[128] | 303 | "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | cut -d' ' -f3 | cut -d')' -f1 | head -n1",
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| 304 | cdr_exe);
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| 305 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 306 | mr_free(command);
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| 307 |
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[128] | 308 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 309 | dev[strlen(dev) - 1] = '\0';
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| 310 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
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| 311 | res = 0;
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| 312 | if (!mt_says_tape_exists(dev)) {
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| 313 | strcpy(dev, ALT_TAPE);
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| 314 | if (!mt_says_tape_exists(dev)) {
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| 315 | log_it("Cannot openin %s", dev);
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| 316 | strcpy(dev, "/dev/st0");
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| 317 | if (!mt_says_tape_exists(dev)) {
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| 318 | log_it("Cannot openin %s", dev);
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| 319 | strcpy(dev, "/dev/osst0");
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| 320 | if (!mt_says_tape_exists(dev)) {
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| 321 | res++;
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| 322 | } else {
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| 323 | res = 0;
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| 324 | }
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| 325 | }
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| 326 | }
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| 327 | }
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[1] | 328 |
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[128] | 329 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 330 |
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| 331 | strcpy(tmp, call_program_and_get_last_line_of_output("\
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[1] | 332 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
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| 333 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
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| 334 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'"));
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| 335 |
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[128] | 336 | if (mt_says_tape_exists(dev)) {
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| 337 | res = 0;
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| 338 | } else {
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| 339 | log_it("Turning %s", dev);
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| 340 | strcpy(tmp, (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
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| 341 | sprintf(dev, "/dev/os%s", tmp);
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| 342 | log_it("...into %s", dev);
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| 343 | if (mt_says_tape_exists(dev)) {
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| 344 | res = 0;
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| 345 | } else {
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| 346 | res++;
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| 347 | }
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| 348 | }
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[1] | 349 |
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[128] | 350 | siz[0] = '\0';
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| 351 | log_it("res=%d; dev=%s", res, dev);
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[1] | 352 |
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[128] | 353 | if (res) {
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| 354 | return (res);
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| 355 | }
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[1] | 356 |
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[128] | 357 | if (strlen(tmp) < 2) {
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| 358 | siz[0] = '\0';
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| 359 | log_it("Warning - size of tape unknown");
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| 360 | return (0);
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| 361 | } else {
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| 362 | strcpy(siz, tmp);
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| 363 | return (0);
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| 364 | }
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[1] | 365 | }
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| 366 |
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| 367 |
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[128] | 368 | int read_EXAT_files_from_tape(struct s_bkpinfo *bkpinfo,
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| 369 | long long *ptmp_size, char *tmp_fname,
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| 370 | int *pctrl_chr, char *xattr_fname,
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| 371 | char *acl_fname)
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[1] | 372 | {
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[128] | 373 | int res = 0;
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| 374 | int retval = 0;
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[955] | 375 | char *fname = (char *)&res; /* Should NOT be NULL */
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[128] | 376 |
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[1] | 377 | // xattr
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[948] | 378 | if (g_getfattr) {
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[955] | 379 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 380 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 381 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 382 | }
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[955] | 383 | if (!strstr(fname, "xattr")) {
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[948] | 384 | fatal_error("Wrong order, sunshine.");
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| 385 | }
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| 386 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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| 387 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 388 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 389 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 390 | }
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[1107] | 391 | mr_msg(1, "Got xattr");
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[128] | 392 | }
|
---|
[1175] | 393 | // acl
|
---|
[948] | 394 | if (g_getfacl) {
|
---|
[955] | 395 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
| 396 | if (!strstr(fname, "acl")) {
|
---|
[948] | 397 | fatal_error("Wrong order, sunshine.");
|
---|
| 398 | }
|
---|
| 399 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 400 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 401 | }
|
---|
| 402 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
| 403 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 404 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 405 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 406 | }
|
---|
| 407 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 408 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 409 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 410 | }
|
---|
[1107] | 411 | mr_msg(1, "Got acl");
|
---|
[128] | 412 | }
|
---|
[1175] | 413 | // tarball itself
|
---|
[128] | 414 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1107] | 415 | mr_msg(1, "now looking for afioball");
|
---|
[128] | 416 | return (retval);
|
---|
[1] | 417 | }
|
---|
| 418 |
|
---|
| 419 |
|
---|
[128] | 420 | int write_EXAT_files_to_tape(struct s_bkpinfo *bkpinfo, char *xattr_fname,
|
---|
| 421 | char *acl_fname)
|
---|
[1] | 422 | {
|
---|
[128] | 423 | int res = 0;
|
---|
[948] | 424 | if (g_getfattr) {
|
---|
[955] | 425 | // xattr
|
---|
[948] | 426 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 427 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 428 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 429 | BLK_START_EXAT_FILE);
|
---|
| 430 | write_file_to_stream_from_file(bkpinfo, xattr_fname);
|
---|
| 431 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
| 432 | }
|
---|
| 433 | if (g_getfacl) {
|
---|
[955] | 434 | // acl
|
---|
[948] | 435 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
| 436 | BLK_START_EXAT_FILE);
|
---|
| 437 | write_file_to_stream_from_file(bkpinfo, acl_fname);
|
---|
| 438 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
| 439 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 440 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 441 | }
|
---|
[128] | 442 | return (res);
|
---|
[1] | 443 | }
|
---|
| 444 |
|
---|
| 445 |
|
---|
| 446 |
|
---|
| 447 |
|
---|
| 448 | /**
|
---|
| 449 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 450 | * @param tapeno The tape number to insist on.
|
---|
| 451 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 452 | * inserted the right tape.
|
---|
| 453 | */
|
---|
| 454 | void insist_on_this_tape_number(int tapeno)
|
---|
| 455 | {
|
---|
[128] | 456 | int i;
|
---|
[1175] | 457 | char *tmp = NULL;
|
---|
[1] | 458 |
|
---|
[128] | 459 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 460 | if (g_current_media_number != tapeno) {
|
---|
| 461 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
[1175] | 462 | mr_asprintf(&tmp,
|
---|
| 463 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
| 464 | tapeno);
|
---|
[128] | 465 | popup_and_OK(tmp);
|
---|
[1175] | 466 | mr_free(tmp);
|
---|
| 467 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
[128] | 468 | } else {
|
---|
[1175] | 469 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
[128] | 470 | }
|
---|
[1] | 471 |
|
---|
[128] | 472 | for (i = 0; i <= 100; i += 2) {
|
---|
| 473 | usleep(100000);
|
---|
| 474 | update_evalcall_form(i);
|
---|
| 475 | }
|
---|
| 476 | close_evalcall_form();
|
---|
| 477 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 478 | g_current_media_number = tapeno;
|
---|
[1] | 479 |
|
---|
[128] | 480 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 481 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 482 | }
|
---|
| 483 |
|
---|
| 484 |
|
---|
| 485 | /**
|
---|
| 486 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 487 | */
|
---|
[128] | 488 | void log_tape_pos(void)
|
---|
[1] | 489 | {
|
---|
[128] | 490 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 491 | (long) g_tape_posK >> 10);
|
---|
[1] | 492 | }
|
---|
| 493 |
|
---|
| 494 |
|
---|
| 495 | /**
|
---|
| 496 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 497 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 498 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 499 | * otherwise we generate a fatal_error().
|
---|
| 500 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 501 | * @param latest_fname The file to place in the collection.
|
---|
| 502 | * @return 0, always.
|
---|
| 503 | * @bug Return value is redundant.
|
---|
| 504 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 505 | */
|
---|
| 506 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 507 | {
|
---|
[128] | 508 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 509 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
[1424] | 510 | int last = 0;
|
---|
| 511 | int i = 0;
|
---|
[128] | 512 | t_archtype type = other;
|
---|
[1175] | 513 | char *command = NULL;
|
---|
| 514 | char *tmpdir = NULL;
|
---|
| 515 | char *old_fname = NULL;
|
---|
[1362] | 516 | struct mr_list_elt *elt = NULL;
|
---|
| 517 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 518 |
|
---|
[128] | 519 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
| 520 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 521 | type = fileset;
|
---|
| 522 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 523 | type = biggieslice;
|
---|
| 524 | } else {
|
---|
| 525 | log_it("fname = %s", latest_fname);
|
---|
| 526 | fatal_error
|
---|
| 527 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 528 | }
|
---|
[1175] | 529 |
|
---|
| 530 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[128] | 531 | mkdir(tmpdir, 0x700);
|
---|
[1175] | 532 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[128] | 533 | if (run_program_and_log_output(command, 6)) {
|
---|
| 534 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 535 | latest_fname, tmpdir);
|
---|
| 536 | }
|
---|
[1175] | 537 | mr_free(command);
|
---|
| 538 |
|
---|
[1369] | 539 | last = mr_list_length(tapecatalog) - 1;
|
---|
[128] | 540 | if (last <= 0) {
|
---|
| 541 | iamhere("Too early to start deleting from collection.");
|
---|
| 542 | return (0);
|
---|
| 543 | }
|
---|
[1369] | 544 | elt = tapecatalog->last;
|
---|
[1362] | 545 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 546 | final_alleged_writeK = te->tape_posK;
|
---|
[128] | 547 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
[1362] | 548 | while (elt != NULL) {
|
---|
| 549 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 550 | cposK = te->tape_posK;
|
---|
[128] | 551 | if (cposK < final_projected_certain_writeK) {
|
---|
| 552 | final_actually_certain_writeK = cposK;
|
---|
| 553 | break;
|
---|
| 554 | }
|
---|
[1362] | 555 | elt = elt->prev;
|
---|
[128] | 556 | }
|
---|
[1362] | 557 | if (elt == NULL) {
|
---|
[128] | 558 | iamhere
|
---|
| 559 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 560 | return (0);
|
---|
| 561 | }
|
---|
[1] | 562 |
|
---|
[1362] | 563 | elt = elt->prev;
|
---|
| 564 | i = 0;
|
---|
| 565 | while ((elt != NULL) && (i < 10)) {
|
---|
| 566 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 567 | mr_asprintf(&old_fname, "%s/%s", tmpdir, te->fname);
|
---|
[128] | 568 | unlink(old_fname);
|
---|
[1175] | 569 | mr_free(old_fname);
|
---|
[1362] | 570 | elt = elt->prev;
|
---|
| 571 | i++;
|
---|
[128] | 572 | }
|
---|
[1175] | 573 | mr_free(tmpdir);
|
---|
[128] | 574 | return (0);
|
---|
[1] | 575 | }
|
---|
| 576 |
|
---|
| 577 |
|
---|
| 578 | /**
|
---|
| 579 | * Open the CD stream for input.
|
---|
| 580 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 581 | * @return 0 for success, nonzero for failure.
|
---|
| 582 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 583 | */
|
---|
[128] | 584 | int openin_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 585 | {
|
---|
[128] | 586 | return (openin_tape(bkpinfo));
|
---|
[1] | 587 | }
|
---|
| 588 |
|
---|
| 589 |
|
---|
[128] | 590 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
| 591 | long internal_tape_block_size)
|
---|
[1] | 592 | {
|
---|
[128] | 593 | char *tmp;
|
---|
| 594 | int res;
|
---|
[1] | 595 |
|
---|
[128] | 596 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
[1107] | 597 | mr_msg(1,
|
---|
[128] | 598 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 599 | return (0);
|
---|
| 600 | }
|
---|
[1175] | 601 | mr_asprintf(&tmp, "mt -f %s setblk %ld", tapedev,
|
---|
| 602 | internal_tape_block_size);
|
---|
[128] | 603 | res = run_program_and_log_output(tmp, 3);
|
---|
[1080] | 604 | mr_free(tmp);
|
---|
[128] | 605 | return (res);
|
---|
[1] | 606 | }
|
---|
| 607 |
|
---|
| 608 |
|
---|
| 609 | /**
|
---|
| 610 | * Open the tape device for input.
|
---|
| 611 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 612 | * - @c bkpinfo->media_device
|
---|
| 613 | * - @c bkpinfo->tmpdir
|
---|
| 614 | * @return 0 for success, nonzero for failure.
|
---|
| 615 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 616 | */
|
---|
[128] | 617 | int openin_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 618 | {
|
---|
[128] | 619 | /*@ buffer ***************************************************** */
|
---|
| 620 | char fname[MAX_STR_LEN];
|
---|
[1175] | 621 | char *datablock = NULL;
|
---|
| 622 | char *tmp = NULL;
|
---|
[128] | 623 | char old_cwd[MAX_STR_LEN];
|
---|
[1175] | 624 | char *outfname = NULL;
|
---|
[128] | 625 | /*@ int ******************************************************* */
|
---|
| 626 | int i;
|
---|
| 627 | int j;
|
---|
| 628 | int res;
|
---|
| 629 | long length, templong;
|
---|
| 630 | size_t k;
|
---|
| 631 | int retval = 0;
|
---|
| 632 | int ctrl_chr;
|
---|
[1] | 633 |
|
---|
[128] | 634 | /*@ long long ************************************************* */
|
---|
| 635 | long long size;
|
---|
[1] | 636 |
|
---|
[128] | 637 | /*@ pointers ************************************************** */
|
---|
| 638 | FILE *fout;
|
---|
[1] | 639 |
|
---|
[128] | 640 | /*@ end vars *************************************************** */
|
---|
[1] | 641 |
|
---|
[128] | 642 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
[1392] | 643 | tapecatalog = mr_list_alloc();
|
---|
[128] | 644 | g_tape_posK = 0;
|
---|
| 645 | if (g_tape_stream) {
|
---|
| 646 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 647 | return (0);
|
---|
| 648 | }
|
---|
| 649 | insist_on_this_tape_number(1);
|
---|
[1175] | 650 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[128] | 651 | make_hole_for_file(outfname);
|
---|
[1] | 652 |
|
---|
[128] | 653 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
| 654 | bkpinfo->internal_tape_block_size);
|
---|
[1] | 655 |
|
---|
[128] | 656 | log_it("Opening IN tape");
|
---|
| 657 | if (!
|
---|
| 658 | (g_tape_stream =
|
---|
| 659 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 660 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 661 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 662 | return (1);
|
---|
| 663 | }
|
---|
[1175] | 664 | log_to_screen(_("Reading stream"));
|
---|
[128] | 665 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1175] | 666 | /* skip data disks */
|
---|
[128] | 667 | open_evalcall_form("Skipping data disks on stream");
|
---|
[1175] | 668 | log_to_screen(_("Skipping data disks on stream"));
|
---|
[128] | 669 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 670 | log_OS_error(outfname);
|
---|
[1175] | 671 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
[128] | 672 | return (-1);
|
---|
[1] | 673 | }
|
---|
[1080] | 674 | datablock = (char *) mr_malloc(256 * 1024);
|
---|
[128] | 675 | for (i = 0; i < 32; i++) {
|
---|
| 676 | for (j = 0; j < 4; j++) {
|
---|
| 677 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 678 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 679 | g_tape_stream);
|
---|
| 680 | }
|
---|
| 681 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 682 | g_tape_posK += length / 1024;
|
---|
| 683 | }
|
---|
| 684 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 685 | {
|
---|
| 686 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 687 | update_evalcall_form((int) (templong));
|
---|
| 688 | }
|
---|
| 689 | }
|
---|
| 690 | paranoid_fclose(fout);
|
---|
[1080] | 691 | mr_free(datablock);
|
---|
[1175] | 692 | /* find initial blocks */
|
---|
[128] | 693 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 694 | retval += res;
|
---|
| 695 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 696 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 697 | }
|
---|
| 698 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 699 | retval += res;
|
---|
| 700 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 701 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 702 | }
|
---|
| 703 | close_evalcall_form();
|
---|
| 704 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 705 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 706 | chdir(bkpinfo->tmpdir);
|
---|
[1175] | 707 | mr_asprintf(&tmp, "tar -zxf %s tmp/mondo-restore.cfg 2> /dev/null",
|
---|
| 708 | outfname);
|
---|
[128] | 709 | paranoid_system(tmp);
|
---|
[1175] | 710 | mr_free(tmp);
|
---|
[128] | 711 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 712 | chdir(old_cwd);
|
---|
| 713 | unlink(outfname);
|
---|
[1175] | 714 | mr_free(outfname);
|
---|
[128] | 715 | return (retval);
|
---|
[1] | 716 | }
|
---|
| 717 |
|
---|
| 718 |
|
---|
| 719 | /**
|
---|
| 720 | * Start writing to a CD stream.
|
---|
| 721 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 722 | * @param speed The speed to write at.
|
---|
| 723 | * @return 0 for success, nonzero for failure.
|
---|
| 724 | * @note This should be called only from backup processes.
|
---|
| 725 | */
|
---|
[128] | 726 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 727 | {
|
---|
[128] | 728 | /*@ buffers ***************************************************** */
|
---|
[1175] | 729 | char *command = NULL;
|
---|
[1] | 730 |
|
---|
[128] | 731 | /*@ end vars *************************************************** */
|
---|
[1] | 732 |
|
---|
[1175] | 733 | /* add 'dummy' if testing */
|
---|
| 734 | mr_asprintf(&command,
|
---|
| 735 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 736 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
| 737 | /* initialise the catalog */
|
---|
[128] | 738 | g_current_media_number = 1;
|
---|
[1392] | 739 | tapecatalog = mr_list_alloc();
|
---|
[1175] | 740 | /* log stuff */
|
---|
[128] | 741 | log_it("Opening OUT cdstream with the command");
|
---|
| 742 | log_it(command);
|
---|
[1175] | 743 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[128] | 744 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 745 | mr_free(command);
|
---|
[128] | 746 | if (g_tape_stream) {
|
---|
| 747 | return (0);
|
---|
| 748 | } else {
|
---|
[1175] | 749 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 750 | return (1);
|
---|
| 751 | }
|
---|
[1] | 752 | }
|
---|
| 753 |
|
---|
[1175] | 754 |
|
---|
[1] | 755 | /**
|
---|
| 756 | * Start writing to a tape device for the backup.
|
---|
| 757 | * @param tapedev The tape device to open for writing.
|
---|
| 758 | * @return 0 for success, nonzero for failure.
|
---|
| 759 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 760 | * EXISTING DATA on the tape!
|
---|
| 761 | */
|
---|
[128] | 762 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
[1] | 763 | {
|
---|
[128] | 764 | g_current_media_number = 1;
|
---|
| 765 | if (g_tape_stream) {
|
---|
| 766 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 767 | return (0);
|
---|
| 768 | }
|
---|
[1392] | 769 | tapecatalog = mr_list_alloc();
|
---|
[128] | 770 | g_tape_posK = 0;
|
---|
| 771 |
|
---|
| 772 | set_tape_block_size_with_mt(tapedev, internal_tape_block_size);
|
---|
| 773 | log_it("Opening OUT tape");
|
---|
| 774 | if (!
|
---|
| 775 | (g_tape_stream =
|
---|
| 776 | open_device_via_buffer(tapedev, 'w', internal_tape_block_size))) {
|
---|
[1175] | 777 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 778 | return (1);
|
---|
| 779 | }
|
---|
| 780 | return (0);
|
---|
[1] | 781 | }
|
---|
| 782 |
|
---|
| 783 |
|
---|
| 784 | /**
|
---|
| 785 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 786 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 787 | * @param outfile The file to write to.
|
---|
| 788 | * @param size The size of the file in the input stream.
|
---|
| 789 | * @return 0 for success, nonzero for failure.
|
---|
| 790 | */
|
---|
| 791 | int
|
---|
[128] | 792 | read_file_from_stream_to_file(struct s_bkpinfo *bkpinfo, char *outfile,
|
---|
| 793 | long long size)
|
---|
[1] | 794 | {
|
---|
| 795 |
|
---|
[128] | 796 | /*@ int ******************************************************** */
|
---|
| 797 | int res;
|
---|
[1] | 798 |
|
---|
[128] | 799 | /*@ end vars *************************************************** */
|
---|
[1] | 800 |
|
---|
[128] | 801 | res = read_file_from_stream_FULL(bkpinfo, outfile, NULL, size);
|
---|
[1] | 802 |
|
---|
[128] | 803 | return (res);
|
---|
[1] | 804 | }
|
---|
| 805 |
|
---|
| 806 |
|
---|
| 807 | /**
|
---|
| 808 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 809 | * by @p fout.
|
---|
| 810 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 811 | * @param fout The stream to write the file to.
|
---|
| 812 | * @param size The size of the file in bytes.
|
---|
| 813 | * @return 0 for success, nonzero for failure.
|
---|
| 814 | */
|
---|
| 815 | int
|
---|
[128] | 816 | read_file_from_stream_to_stream(struct s_bkpinfo *bkpinfo, FILE * fout,
|
---|
| 817 | long long size)
|
---|
[1] | 818 | {
|
---|
| 819 |
|
---|
[128] | 820 | /*@ int ******************************************************** */
|
---|
| 821 | int res;
|
---|
[1] | 822 |
|
---|
[128] | 823 | /*@ end vars *************************************************** */
|
---|
[1] | 824 |
|
---|
[128] | 825 | res = read_file_from_stream_FULL(bkpinfo, NULL, fout, size);
|
---|
| 826 | return (res);
|
---|
[1] | 827 | }
|
---|
| 828 |
|
---|
| 829 |
|
---|
| 830 | /**
|
---|
| 831 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 832 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 833 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 834 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 835 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 836 | * @param outfname If non-NULL, write to this file.
|
---|
| 837 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 838 | * @param orig_size The original length of the file in bytes.
|
---|
| 839 | * @return 0 for success, nonzero for failure.
|
---|
| 840 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 841 | */
|
---|
| 842 | int
|
---|
[128] | 843 | read_file_from_stream_FULL(struct s_bkpinfo *bkpinfo, char *outfname,
|
---|
| 844 | FILE * foutstream, long long orig_size)
|
---|
[1] | 845 | {
|
---|
[128] | 846 | /*@ buffers ***************************************************** */
|
---|
[1175] | 847 | char *tmp = NULL;
|
---|
| 848 | char *datablock = NULL;
|
---|
[128] | 849 | char *temp_fname;
|
---|
| 850 | char *temp_cksum;
|
---|
[1175] | 851 | char *actual_cksum = NULL;
|
---|
[1] | 852 |
|
---|
[128] | 853 | /*@ int ********************************************************* */
|
---|
| 854 | int retval = 0;
|
---|
[1] | 855 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 856 | int i, ch;
|
---|
[1] | 857 | #endif
|
---|
[128] | 858 | int noof_blocks;
|
---|
| 859 | int ctrl_chr;
|
---|
| 860 | int res;
|
---|
| 861 | /*@ pointers **************************************************** */
|
---|
| 862 | FILE *fout;
|
---|
[1] | 863 |
|
---|
[128] | 864 | /*@ long ***************************************************** */
|
---|
[1175] | 865 | long bytes_to_write = 0;
|
---|
[1] | 866 |
|
---|
[128] | 867 | /*@ long long *************************************************** */
|
---|
| 868 | long long temp_size, size;
|
---|
| 869 | long bytes_read, bytes_to_read;
|
---|
| 870 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 871 | long long where_I_was_before_tape_change = 0;
|
---|
| 872 | /*@ unsigned int ************************************************ */
|
---|
| 873 | unsigned int crc16;
|
---|
| 874 | unsigned int crctt;
|
---|
[1] | 875 |
|
---|
[128] | 876 | bool had_to_resync = FALSE;
|
---|
[1] | 877 |
|
---|
[128] | 878 | /*@ init ******************************************************* */
|
---|
| 879 | malloc_string(temp_fname);
|
---|
| 880 | malloc_string(temp_cksum);
|
---|
[1080] | 881 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
[128] | 882 | crc16 = 0;
|
---|
| 883 | crctt = 0;
|
---|
| 884 | size = orig_size;
|
---|
[1] | 885 |
|
---|
[128] | 886 | /*@ end vars *************************************************** */
|
---|
[1] | 887 |
|
---|
[128] | 888 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 889 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[1175] | 890 | mr_asprintf(&tmp,
|
---|
| 891 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 892 | (long) size >> 10, (long) temp_size >> 10);
|
---|
[128] | 893 | log_to_screen(tmp);
|
---|
[1175] | 894 | mr_free(tmp);
|
---|
[128] | 895 | }
|
---|
| 896 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 897 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 898 | return (1);
|
---|
| 899 | }
|
---|
[1175] | 900 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
| 901 | outfname, (long) size >> 10);
|
---|
| 902 | log_to_screen(tmp);
|
---|
| 903 | mr_free(tmp);
|
---|
[1] | 904 |
|
---|
[128] | 905 | if (foutstream) {
|
---|
| 906 | fout = foutstream;
|
---|
| 907 | } else {
|
---|
| 908 | fout = fopen(outfname, "w");
|
---|
[1] | 909 | }
|
---|
[128] | 910 | if (!fout) {
|
---|
| 911 | log_OS_error(outfname);
|
---|
[1175] | 912 | log_to_screen(_("Cannot openout file"));
|
---|
[128] | 913 | return (1);
|
---|
| 914 | }
|
---|
| 915 | total_read_from_tape_for_this_file = 0;
|
---|
| 916 | for (noof_blocks = 0; size > 0;
|
---|
| 917 | noof_blocks++, size -=
|
---|
| 918 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 919 | bytes_read) {
|
---|
| 920 | bytes_to_write =
|
---|
| 921 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 922 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 923 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 924 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 925 | // crctt=crc16=0;
|
---|
| 926 | where_I_was_before_tape_change = size;
|
---|
[1107] | 927 | mr_msg(4, "where_I_was_... = %lld",
|
---|
[128] | 928 | where_I_was_before_tape_change);
|
---|
| 929 | start_to_read_from_next_tape(bkpinfo);
|
---|
[1107] | 930 | mr_msg(4, "Started reading from next tape.");
|
---|
[128] | 931 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
[1107] | 932 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
[128] | 933 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 934 | size -= bytes_to_write) {
|
---|
| 935 | bytes_read =
|
---|
| 936 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 937 | }
|
---|
[1107] | 938 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
[128] | 939 | where_I_was_before_tape_change);
|
---|
| 940 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 941 | had_to_resync = TRUE;
|
---|
| 942 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 943 | }
|
---|
[1] | 944 |
|
---|
[128] | 945 | (void) fwrite(datablock, 1, (size_t) bytes_to_write, fout); // for blocking reasons, bytes_successfully_read_in isn't necessarily the same as bytes_to_write
|
---|
[1] | 946 |
|
---|
| 947 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 948 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 949 | ch = datablock[i];
|
---|
| 950 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 951 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 952 | }
|
---|
[1] | 953 | #endif
|
---|
[128] | 954 | }
|
---|
[1107] | 955 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
[128] | 956 | total_read_from_tape_for_this_file);
|
---|
[1107] | 957 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
[128] | 958 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[1175] | 959 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[128] | 960 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 961 | } else {
|
---|
| 962 | paranoid_fclose(fout);
|
---|
| 963 | }
|
---|
| 964 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 965 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 966 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 967 | // fatal_error("Bad marker"); // return(1);
|
---|
[128] | 968 | }
|
---|
| 969 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[1175] | 970 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
| 971 | temp_cksum);
|
---|
[128] | 972 | log_to_screen(tmp);
|
---|
[1175] | 973 | mr_free(tmp);
|
---|
| 974 |
|
---|
| 975 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
| 976 | (long) orig_size >> 10);
|
---|
[128] | 977 | log_to_screen(tmp);
|
---|
[1175] | 978 | mr_free(tmp);
|
---|
[128] | 979 | retval++;
|
---|
| 980 | }
|
---|
[1175] | 981 | mr_free(actual_cksum);
|
---|
[1080] | 982 | mr_free(datablock);
|
---|
| 983 | mr_free(temp_fname);
|
---|
| 984 | mr_free(temp_cksum);
|
---|
[128] | 985 | return (retval);
|
---|
[1] | 986 | }
|
---|
| 987 |
|
---|
| 988 |
|
---|
| 989 | /**
|
---|
| 990 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 991 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 992 | * the filename (if it's file-related), and the block type.
|
---|
| 993 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 994 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 995 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 996 | * @return 0 for success, nonzero for failure.
|
---|
| 997 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 998 | */
|
---|
| 999 | int
|
---|
[128] | 1000 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 1001 | int *pcontrol_char)
|
---|
[1] | 1002 | {
|
---|
| 1003 |
|
---|
[128] | 1004 | /*@ buffers ***************************************************** */
|
---|
| 1005 | char *tempblock;
|
---|
[1] | 1006 |
|
---|
[128] | 1007 | /*@ int ********************************************************* */
|
---|
| 1008 | int i, retval;
|
---|
[1] | 1009 |
|
---|
[128] | 1010 | /*@ end vars *************************************************** */
|
---|
[1] | 1011 |
|
---|
[1080] | 1012 | tempblock = (char *) mr_malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
[1] | 1013 |
|
---|
[128] | 1014 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1015 | tempblock[i] = 0;
|
---|
| 1016 | }
|
---|
| 1017 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1018 | g_tape_posK +=
|
---|
| 1019 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1020 | g_tape_stream) / 1024;
|
---|
| 1021 | }
|
---|
| 1022 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
| 1023 | if (strcmp(tempblock + 6000 + *pcontrol_char, "Mondolicious, baby")) {
|
---|
| 1024 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1025 | }
|
---|
| 1026 | strcpy(filename, tempblock + 1000);
|
---|
| 1027 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1028 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1029 | retval = 1;
|
---|
| 1030 | } else {
|
---|
| 1031 | retval = 0;
|
---|
| 1032 | }
|
---|
| 1033 | for (i = 1000; i < 1020; i++) {
|
---|
| 1034 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1035 | tempblock[i] = ' ';
|
---|
| 1036 | }
|
---|
| 1037 | }
|
---|
| 1038 | tempblock[i] = '\0';
|
---|
[1107] | 1039 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1040 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1041 | (long) (*plen) >> 10);
|
---|
[1080] | 1042 | mr_free(tempblock);
|
---|
[128] | 1043 | return (retval);
|
---|
[1] | 1044 | }
|
---|
| 1045 |
|
---|
| 1046 |
|
---|
| 1047 | /**
|
---|
| 1048 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1049 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1050 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1051 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1052 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1053 | * @param number The fileset number or biggiefile number.
|
---|
| 1054 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1055 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1056 | * @return The index of the record we just added.
|
---|
| 1057 | */
|
---|
[128] | 1058 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1059 | char *fn)
|
---|
[1] | 1060 | {
|
---|
[1362] | 1061 | char *fname = NULL;
|
---|
| 1062 | char *p = NULL;
|
---|
| 1063 | struct s_tapecat_entry *te = NULL;
|
---|
| 1064 | struct mr_list_elt *elt = NULL;
|
---|
[1] | 1065 |
|
---|
[128] | 1066 | p = strrchr(fn, '/');
|
---|
| 1067 | if (p) {
|
---|
| 1068 | p++;
|
---|
| 1069 | } else {
|
---|
| 1070 | p = fn;
|
---|
| 1071 | }
|
---|
[1362] | 1072 | mr_asprintf(&fname, p);
|
---|
| 1073 |
|
---|
| 1074 | te = (struct s_tapecat_entry *)mr_malloc(sizeof(struct s_tapecat_entry));
|
---|
| 1075 | te->type = type;
|
---|
| 1076 | te->number = number;
|
---|
| 1077 | te->aux = aux;
|
---|
| 1078 | te->tape_posK = g_tape_posK;
|
---|
| 1079 | /* BERLIOS: Check if this is written womewhere, as it's only a pointer */
|
---|
| 1080 | /* BERLIOS: Verify to purge fname correctly */
|
---|
| 1081 | te->fname = fname;
|
---|
| 1082 |
|
---|
| 1083 | /* place the data in a list elt */
|
---|
[1392] | 1084 | elt = mr_list_alloc_elt((void *)te, mr_free_te);
|
---|
[1370] | 1085 | mr_list_add_elt_last(tapecatalog, elt);
|
---|
[1362] | 1086 |
|
---|
| 1087 | // returns the index of the record we've just added
|
---|
[1369] | 1088 | return (mr_list_length(tapecatalog));
|
---|
[1] | 1089 | }
|
---|
| 1090 |
|
---|
| 1091 |
|
---|
| 1092 | /**
|
---|
| 1093 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1094 | * (got SIGPIPE) or look like we will.
|
---|
| 1095 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1096 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1097 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1098 | * autodetecting the size. Huh?
|
---|
| 1099 | */
|
---|
[684] | 1100 |
|
---|
| 1101 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1102 | bool
|
---|
[128] | 1103 | should_we_write_to_next_tape(long mediasize,
|
---|
[684] | 1104 | off_t length_of_incoming_file)
|
---|
[1] | 1105 | {
|
---|
[128] | 1106 | /*@ bool's ***************************************************** */
|
---|
| 1107 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1108 |
|
---|
[128] | 1109 | /*@ end vars *************************************************** */
|
---|
[1] | 1110 |
|
---|
[128] | 1111 | if (mediasize == 0) {
|
---|
| 1112 | return (FALSE);
|
---|
| 1113 | }
|
---|
| 1114 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1115 | log_it("mediasize = %ld", mediasize);
|
---|
| 1116 | we_need_a_new_tape = TRUE;
|
---|
[1175] | 1117 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
[128] | 1118 | }
|
---|
| 1119 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
| 1120 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
| 1121 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1122 | mediasize);
|
---|
| 1123 | we_need_a_new_tape = TRUE;
|
---|
| 1124 | }
|
---|
| 1125 | return (we_need_a_new_tape);
|
---|
[1] | 1126 | }
|
---|
| 1127 |
|
---|
| 1128 |
|
---|
| 1129 | /**
|
---|
| 1130 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1131 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1132 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1133 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1134 | * @return 0 for success, nonzero for failure.
|
---|
| 1135 | */
|
---|
[128] | 1136 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1137 | *the_file_I_was_reading)
|
---|
[1] | 1138 | {
|
---|
[128] | 1139 | char *pA;
|
---|
| 1140 | char *pB;
|
---|
| 1141 | int res;
|
---|
| 1142 | int ctrl_chr;
|
---|
| 1143 | char *temp_fname;
|
---|
| 1144 | char *datablock;
|
---|
| 1145 | long long temp_size, size;
|
---|
| 1146 | long bytes_to_write;
|
---|
[1] | 1147 |
|
---|
[1080] | 1148 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
[128] | 1149 | malloc_string(temp_fname);
|
---|
| 1150 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1151 | if (pB) {
|
---|
| 1152 | pB++;
|
---|
| 1153 | } else {
|
---|
| 1154 | pB = the_file_I_was_reading;
|
---|
[1] | 1155 | }
|
---|
[1107] | 1156 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1157 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
[128] | 1158 | ctrl_chr = -1;
|
---|
| 1159 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1160 | res =
|
---|
| 1161 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1162 | &ctrl_chr);
|
---|
| 1163 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1164 | break;
|
---|
| 1165 | }
|
---|
[1107] | 1166 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1167 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
[1107] | 1168 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1169 | }
|
---|
| 1170 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1171 | res =
|
---|
| 1172 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1173 | &ctrl_chr);
|
---|
| 1174 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1175 | break;
|
---|
| 1176 | }
|
---|
[1107] | 1177 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1178 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
[1107] | 1179 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1180 | }
|
---|
| 1181 | pA = strrchr(temp_fname, '/');
|
---|
| 1182 | if (pA) {
|
---|
| 1183 | pA++;
|
---|
| 1184 | } else {
|
---|
| 1185 | pA = temp_fname;
|
---|
| 1186 | }
|
---|
| 1187 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1188 | if (pB) {
|
---|
| 1189 | pB++;
|
---|
| 1190 | } else {
|
---|
| 1191 | pB = the_file_I_was_reading;
|
---|
| 1192 | }
|
---|
| 1193 | while (strcmp(pA, pB)) {
|
---|
[1107] | 1194 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
[128] | 1195 | the_file_I_was_reading);
|
---|
| 1196 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1197 | bytes_to_write =
|
---|
| 1198 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 1199 | // FIXME - needs error-checking and -catching
|
---|
| 1200 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
| 1201 | }
|
---|
| 1202 | res =
|
---|
| 1203 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1204 | &ctrl_chr);
|
---|
| 1205 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1206 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1207 | }
|
---|
| 1208 | res =
|
---|
| 1209 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1210 | &ctrl_chr);
|
---|
| 1211 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1212 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1213 | }
|
---|
| 1214 | res =
|
---|
| 1215 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1216 | &ctrl_chr);
|
---|
| 1217 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1218 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1219 | }
|
---|
| 1220 | res =
|
---|
| 1221 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1222 | &ctrl_chr);
|
---|
| 1223 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1224 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1225 | }
|
---|
| 1226 | pA = strrchr(temp_fname, '/');
|
---|
| 1227 | if (pA) {
|
---|
| 1228 | pA++;
|
---|
| 1229 | } else {
|
---|
| 1230 | pA = temp_fname;
|
---|
| 1231 | }
|
---|
| 1232 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1233 | if (pB) {
|
---|
| 1234 | pB++;
|
---|
| 1235 | } else {
|
---|
| 1236 | pB = the_file_I_was_reading;
|
---|
| 1237 | }
|
---|
| 1238 | }
|
---|
[1107] | 1239 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
[128] | 1240 | the_file_I_was_reading);
|
---|
[1080] | 1241 | mr_free(temp_fname);
|
---|
| 1242 | mr_free(datablock);
|
---|
[128] | 1243 | return (0);
|
---|
[1] | 1244 | }
|
---|
| 1245 |
|
---|
| 1246 |
|
---|
| 1247 | /**
|
---|
| 1248 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1249 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1250 | * @return 0 for success, nonzero for failure.
|
---|
| 1251 | */
|
---|
[128] | 1252 | int start_to_read_from_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1253 | {
|
---|
[128] | 1254 | /*@ int ********************************************************* */
|
---|
| 1255 | int res = 0;
|
---|
| 1256 | char *sz_msg;
|
---|
| 1257 | int ctrlchr;
|
---|
| 1258 | long long temp_size;
|
---|
| 1259 | malloc_string(sz_msg);
|
---|
| 1260 | /*@ end vars *************************************************** */
|
---|
[1] | 1261 |
|
---|
[128] | 1262 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1263 | sync();
|
---|
| 1264 | sync();
|
---|
| 1265 | sync();
|
---|
[128] | 1266 | log_it("Next tape requested.");
|
---|
| 1267 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1268 | log_it("Opening IN the next tape");
|
---|
| 1269 | if (!
|
---|
| 1270 | (g_tape_stream =
|
---|
| 1271 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1272 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1273 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1274 | return (1);
|
---|
| 1275 | }
|
---|
| 1276 | g_tape_posK = 0;
|
---|
| 1277 | g_sigpipe = FALSE;
|
---|
| 1278 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1279 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1280 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1281 | }
|
---|
| 1282 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1283 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1284 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1285 | } else {
|
---|
[1107] | 1286 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
[128] | 1287 | }
|
---|
[1080] | 1288 | mr_free(sz_msg);
|
---|
[128] | 1289 | return (res);
|
---|
[1] | 1290 | }
|
---|
| 1291 |
|
---|
| 1292 |
|
---|
| 1293 | /**
|
---|
| 1294 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1295 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1296 | * @return 0 for success, nonzero for failure.
|
---|
| 1297 | */
|
---|
[128] | 1298 | int start_to_write_to_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1299 | {
|
---|
[128] | 1300 | int res = 0;
|
---|
[1175] | 1301 | char *command = NULL;
|
---|
| 1302 |
|
---|
[128] | 1303 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1304 | sync();
|
---|
| 1305 | sync();
|
---|
| 1306 | sync();
|
---|
[128] | 1307 | log_it("New tape requested.");
|
---|
| 1308 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1309 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[1175] | 1310 | mr_asprintf(&command,
|
---|
| 1311 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 1312 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
| 1313 | MONDO_LOGFILE);
|
---|
[128] | 1314 | log_it("Opening OUT to next CD with the command");
|
---|
| 1315 | log_it(command);
|
---|
| 1316 | log_it("Let's see what happens, shall we?");
|
---|
| 1317 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 1318 | mr_free(command);
|
---|
[128] | 1319 | if (!g_tape_stream) {
|
---|
[1175] | 1320 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 1321 | return (1);
|
---|
| 1322 | }
|
---|
| 1323 | } else {
|
---|
| 1324 | log_it("Opening OUT to next tape");
|
---|
| 1325 | if (!
|
---|
| 1326 | (g_tape_stream =
|
---|
| 1327 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1328 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1329 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1330 | return (1);
|
---|
| 1331 | }
|
---|
[1] | 1332 | }
|
---|
[128] | 1333 | g_tape_posK = 0;
|
---|
| 1334 | g_sigpipe = FALSE;
|
---|
[684] | 1335 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1336 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[128] | 1337 | return (res);
|
---|
[1] | 1338 | }
|
---|
| 1339 |
|
---|
| 1340 |
|
---|
| 1341 | /**
|
---|
| 1342 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1343 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1344 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1345 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1346 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1347 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1348 | * the old one. This insures that all archives will be on at least
|
---|
| 1349 | * one tape. Sounds inelegant, but it works.
|
---|
| 1350 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1351 | * @return 0 for success, nonzero for failure.
|
---|
| 1352 | */
|
---|
[128] | 1353 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1354 | {
|
---|
[1548] | 1355 | int res = 0;
|
---|
[1175] | 1356 | char *fname = NULL;
|
---|
[1362] | 1357 | struct mr_list_elt *elt = NULL;
|
---|
| 1358 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 1359 |
|
---|
[1107] | 1360 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
[1369] | 1361 | elt = tapecatalog->first;
|
---|
[1362] | 1362 | while (elt != NULL) {
|
---|
| 1363 | te = (struct s_tapecat_entry *) elt->data;
|
---|
| 1364 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir, te->fname);
|
---|
[128] | 1365 | if (!does_file_exist(fname)) {
|
---|
[1107] | 1366 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
[128] | 1367 | } else {
|
---|
| 1368 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1369 | "start-backcatalog-afio-or-slice",
|
---|
| 1370 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
[1107] | 1371 | mr_msg(2, "Writing %s", fname);
|
---|
[128] | 1372 | if (write_file_to_stream_from_file(bkpinfo, fname)) {
|
---|
| 1373 | res++;
|
---|
[1107] | 1374 | mr_msg(2, "%s failed", fname);
|
---|
[128] | 1375 | }
|
---|
| 1376 | if (i != last) {
|
---|
[684] | 1377 | write_header_block_to_stream((off_t)0,
|
---|
[128] | 1378 | "stop-backcatalog-afio-or-slice",
|
---|
| 1379 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1380 | }
|
---|
| 1381 | }
|
---|
[1175] | 1382 | mr_free(fname);
|
---|
[1362] | 1383 | elt = elt->next;
|
---|
[128] | 1384 | }
|
---|
[1107] | 1385 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
[128] | 1386 | return (res);
|
---|
[1] | 1387 | }
|
---|
| 1388 |
|
---|
| 1389 |
|
---|
| 1390 | /**
|
---|
| 1391 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1392 | * @param fname The path to all.tar.gz.
|
---|
| 1393 | * @return 0 for success, nonzero for failure.
|
---|
| 1394 | */
|
---|
[128] | 1395 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1396 | {
|
---|
[128] | 1397 | /*@ pointers *************************************************** */
|
---|
[1175] | 1398 | FILE *fin = NULL;
|
---|
| 1399 | char *tmp = NULL;
|
---|
[1] | 1400 |
|
---|
[128] | 1401 | /*@ long ******************************************************* */
|
---|
| 1402 | long m = -1;
|
---|
| 1403 | long templong;
|
---|
[1] | 1404 |
|
---|
[128] | 1405 | /*@ int ******************************************************** */
|
---|
| 1406 | int i, j;
|
---|
[1] | 1407 |
|
---|
[128] | 1408 | /*@ buffers **************************************************** */
|
---|
| 1409 | char tempblock[256 * 1024];
|
---|
[1] | 1410 |
|
---|
[128] | 1411 | /*@ end vars *************************************************** */
|
---|
[1] | 1412 |
|
---|
[1175] | 1413 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
| 1414 | log_to_screen(_("Writing data disks to tape"));
|
---|
[128] | 1415 | log_it("Data disks = %s", fname);
|
---|
| 1416 | if (!does_file_exist(fname)) {
|
---|
[1175] | 1417 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
[128] | 1418 | log_to_screen(tmp);
|
---|
[1175] | 1419 | mr_free(tmp);
|
---|
[128] | 1420 | return (1);
|
---|
[1] | 1421 | }
|
---|
[128] | 1422 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1423 | log_OS_error(fname);
|
---|
| 1424 | fatal_error("Cannot openin the data disk");
|
---|
| 1425 | }
|
---|
| 1426 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1427 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1428 | if (!feof(fin)) {
|
---|
| 1429 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1430 | } else {
|
---|
| 1431 | m = 0;
|
---|
| 1432 | }
|
---|
| 1433 | for (; m < 256 * 1024; m++) {
|
---|
| 1434 | tempblock[m] = '\0';
|
---|
| 1435 | }
|
---|
| 1436 | g_tape_posK +=
|
---|
| 1437 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1438 | }
|
---|
| 1439 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1440 | {
|
---|
| 1441 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1442 | update_evalcall_form((int) (templong));
|
---|
| 1443 | }
|
---|
| 1444 | }
|
---|
| 1445 | paranoid_fclose(fin);
|
---|
| 1446 | close_evalcall_form();
|
---|
| 1447 | return (0);
|
---|
[1] | 1448 | }
|
---|
| 1449 |
|
---|
| 1450 |
|
---|
| 1451 | /**
|
---|
| 1452 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1453 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1454 | * @param infile The file to write to the stream.
|
---|
| 1455 | * @return 0 for success, nonzero for failure.
|
---|
| 1456 | */
|
---|
[128] | 1457 | int write_file_to_stream_from_file(struct s_bkpinfo *bkpinfo, char *infile)
|
---|
[1] | 1458 | {
|
---|
[128] | 1459 | /*@ buffers **************************************************** */
|
---|
[1175] | 1460 | char *tmp = NULL;
|
---|
[128] | 1461 | char datablock[TAPE_BLOCK_SIZE];
|
---|
[1175] | 1462 | char *checksum = NULL;
|
---|
| 1463 | char *infile_basename = NULL;
|
---|
[1] | 1464 |
|
---|
[128] | 1465 | /*@ int ******************************************************** */
|
---|
| 1466 | int retval = 0;
|
---|
| 1467 | int noof_blocks;
|
---|
[1] | 1468 |
|
---|
[128] | 1469 | /* unsigned int ch; */
|
---|
| 1470 | unsigned int crc16;
|
---|
| 1471 | unsigned int crctt;
|
---|
[1] | 1472 |
|
---|
[128] | 1473 | /*@ pointers *************************************************** */
|
---|
| 1474 | FILE *fin;
|
---|
| 1475 | char *p;
|
---|
[1] | 1476 |
|
---|
[128] | 1477 | /*@ long ******************************************************* */
|
---|
| 1478 | long bytes_to_read = 0;
|
---|
| 1479 | long i;
|
---|
[1] | 1480 |
|
---|
[684] | 1481 | off_t filesize;
|
---|
[1] | 1482 |
|
---|
| 1483 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1484 | int ch;
|
---|
[1] | 1485 | #endif
|
---|
| 1486 |
|
---|
[128] | 1487 | /*@ initialize ************************************************ */
|
---|
| 1488 | crc16 = 0;
|
---|
| 1489 | crctt = 0;
|
---|
[1] | 1490 |
|
---|
[128] | 1491 | /*@ end vars *************************************************** */
|
---|
[1] | 1492 |
|
---|
[128] | 1493 | infile_basename = strrchr(infile, '/');
|
---|
| 1494 | if (infile_basename) {
|
---|
| 1495 | infile_basename++;
|
---|
| 1496 | } else {
|
---|
| 1497 | infile_basename = infile;
|
---|
| 1498 | }
|
---|
| 1499 | filesize = length_of_file(infile);
|
---|
| 1500 | if (should_we_write_to_next_tape
|
---|
[1365] | 1501 | (bkpinfo->media_size, filesize)) {
|
---|
[128] | 1502 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1503 | write_backcatalog_to_tape(bkpinfo);
|
---|
| 1504 | }
|
---|
| 1505 | p = strrchr(infile, '/');
|
---|
| 1506 | if (!p) {
|
---|
| 1507 | p = infile;
|
---|
| 1508 | } else {
|
---|
| 1509 | p++;
|
---|
| 1510 | }
|
---|
[1175] | 1511 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
| 1512 | (long) filesize >> 10);
|
---|
[128] | 1513 | log_it(tmp);
|
---|
[1175] | 1514 | mr_free(tmp);
|
---|
| 1515 |
|
---|
[128] | 1516 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1517 | BLK_START_FILE);
|
---|
[1] | 1518 | //go_here_to_restart_saving_of_file:
|
---|
[128] | 1519 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1520 | log_OS_error(infile);
|
---|
| 1521 | return (1);
|
---|
[1] | 1522 | }
|
---|
[128] | 1523 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1524 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
| 1525 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
| 1526 | bytes_to_read = (long) filesize;
|
---|
| 1527 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
| 1528 | datablock[i] = '\0';
|
---|
| 1529 | }
|
---|
| 1530 | } else {
|
---|
| 1531 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 1532 | }
|
---|
| 1533 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
[1175] | 1534 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
| 1535 | (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1536 | g_tape_stream) / 1024;
|
---|
[128] | 1537 | if (g_sigpipe) {
|
---|
| 1538 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1539 | fclose(fin);
|
---|
| 1540 | g_sigpipe = FALSE;
|
---|
| 1541 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1542 | write_backcatalog_to_tape(bkpinfo); // kinda-sorta recursive :)
|
---|
| 1543 | return (0);
|
---|
| 1544 | }
|
---|
[1] | 1545 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1546 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1547 | ch = datablock[i];
|
---|
| 1548 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1549 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1550 | }
|
---|
[1] | 1551 | #endif
|
---|
[128] | 1552 | }
|
---|
| 1553 | paranoid_fclose(fin);
|
---|
[1175] | 1554 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[684] | 1555 | /* BERLIOS: what does it do ??? */
|
---|
| 1556 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[128] | 1557 | BLK_STOP_FILE);
|
---|
[1175] | 1558 | mr_free(checksum);
|
---|
[1] | 1559 | // log_it("File '%s' written to tape.", infile);
|
---|
[128] | 1560 | return (retval);
|
---|
[1] | 1561 | }
|
---|
| 1562 |
|
---|
| 1563 |
|
---|
| 1564 | /**
|
---|
| 1565 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1566 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1567 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1568 | * be the length of the file that will follow.
|
---|
| 1569 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1570 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1571 | * if the file that will follow.
|
---|
| 1572 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1573 | * @return 0 for success, nonzero for failure.
|
---|
| 1574 | */
|
---|
| 1575 | int
|
---|
[684] | 1576 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[128] | 1577 | char *filename, int control_char)
|
---|
[1] | 1578 | {
|
---|
[128] | 1579 | /*@ buffers **************************************************** */
|
---|
| 1580 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
| 1581 | char *p;
|
---|
[1] | 1582 |
|
---|
[128] | 1583 | /*@ int ******************************************************** */
|
---|
| 1584 | int i;
|
---|
[1] | 1585 |
|
---|
[684] | 1586 | off_t olen;
|
---|
[1] | 1587 |
|
---|
[128] | 1588 | /*@ end vars *************************************************** */
|
---|
[1] | 1589 |
|
---|
| 1590 |
|
---|
[128] | 1591 | olen = length_of_incoming_file;
|
---|
| 1592 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1593 | if (!p) {
|
---|
| 1594 | p = filename;
|
---|
| 1595 | } else {
|
---|
| 1596 | p++;
|
---|
| 1597 | }
|
---|
| 1598 | if (!g_tape_stream) {
|
---|
| 1599 | log_to_screen
|
---|
[1175] | 1600 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
[128] | 1601 | return (1);
|
---|
| 1602 | }
|
---|
| 1603 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1604 | tempblock[i] = 0;
|
---|
| 1605 | }
|
---|
| 1606 | sprintf(tempblock + 6000 + control_char, "Mondolicious, baby");
|
---|
| 1607 | tempblock[7000] = control_char;
|
---|
[684] | 1608 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[128] | 1609 | strcpy(tempblock + 1000, filename);
|
---|
| 1610 | g_tape_posK +=
|
---|
| 1611 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1612 | g_tape_stream) / 1024;
|
---|
[1175] | 1613 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1614 | marker_to_string(control_char), p,
|
---|
| 1615 | (long) length_of_incoming_file >> 10);
|
---|
| 1616 | return (0);
|
---|
[1] | 1617 | }
|
---|
| 1618 |
|
---|
| 1619 |
|
---|
| 1620 | /**
|
---|
| 1621 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1622 | * @param should_be What we were expecting.
|
---|
| 1623 | * @param it_is What we got.
|
---|
| 1624 | */
|
---|
[128] | 1625 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1626 | {
|
---|
[128] | 1627 | /*@ buffer ***************************************************** */
|
---|
[1175] | 1628 | char *tmp = NULL;
|
---|
[1] | 1629 |
|
---|
| 1630 |
|
---|
[128] | 1631 | /*@ end vars *************************************************** */
|
---|
[1175] | 1632 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
| 1633 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
[128] | 1634 | log_to_screen(tmp);
|
---|
[1175] | 1635 | mr_free(tmp);
|
---|
[1] | 1636 | }
|
---|
| 1637 |
|
---|
| 1638 | /* @} - end of streamGroup */
|
---|