[1174] | 1 | /* $Id: libmondo-stream.c 1174 2007-02-16 12:22:49Z 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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[1174] | 17 |
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[1] | 18 | #include "mondostructures.h"
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| 19 | #include "libmondo-devices.h"
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| 20 | #include "libmondo-stream.h"
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| 21 | #include "libmondo-string-EXT.h"
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| 22 | #include "libmondo-files-EXT.h"
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[1174] | 23 | #include "newt-specific-EXT.h"
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[1] | 24 | #include "libmondo-fork-EXT.h"
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| 25 | #include "libmondo-tools-EXT.h"
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| 26 | #include "libmondo-fifo-EXT.h"
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| 27 |
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| 28 | #define EXTRA_TAPE_CHECKSUMS
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| 29 |
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| 30 | /*@unused@*/
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[128] | 31 | //static char cvsid[] = "$Id: libmondo-stream.c 1174 2007-02-16 12:22:49Z bruno $";
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[1] | 32 | extern bool g_sigpipe;
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| 33 | extern int g_tape_buffer_size_MB;
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| 34 |
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[948] | 35 | extern char *g_getfacl;
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| 36 | extern char *g_getfattr;
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| 37 |
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[1] | 38 | /**
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| 39 | * @addtogroup globalGroup
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| 40 | * @{
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| 41 | */
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| 42 | /**
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| 43 | * The file pointer for the opened tape/CD stream.
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| 44 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 45 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 46 | * closeout_tape(), and closeout_cdstream().
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| 47 | */
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| 48 | FILE *g_tape_stream = NULL;
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| 49 |
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| 50 |
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| 51 | /**
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| 52 | * The position (in kilobytes) where we are on the tape.
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| 53 | */
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| 54 | long long g_tape_posK = 0;
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| 55 |
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| 56 | /**
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| 57 | * The current media number we're using. This value is 1-based.
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| 58 | */
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[128] | 59 | int g_current_media_number = -1;
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[1] | 60 |
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| 61 | /**
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| 62 | * The tape catalog that keeps track of files written to tape.
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| 63 | */
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| 64 | struct s_tapecatalog *g_tapecatalog;
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| 65 |
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| 66 | /* @} - end of globalGroup */
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| 67 |
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[128] | 68 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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[1] | 69 |
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| 70 |
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| 71 |
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| 72 |
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| 73 |
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| 74 | /**
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| 75 | * @addtogroup streamGroup
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| 76 | * @{
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| 77 | */
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| 78 | /**
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| 79 | * Close the global output file descriptor which Mondo has used to read
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| 80 | * from the CD stream.
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| 81 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 82 | * @return 0 for success, nonzero for failure.
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| 83 | * @note This should be called by restore processes only.
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| 84 | */
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[128] | 85 | int closein_cdstream(struct s_bkpinfo *bkpinfo)
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[1] | 86 | {
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[128] | 87 | return (closein_tape(bkpinfo));
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[1] | 88 | }
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| 89 |
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| 90 |
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| 91 | /**
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| 92 | * Close the global output file descriptor which Mondo has used to read
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| 93 | * from buffer or dd, which read from the tape.
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| 94 | * @param bkpinfo The backup information structure. Unused.
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| 95 | * @return 0 for success, nonzero for failure.
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| 96 | * @note This should be called by restore processes only.
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| 97 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 98 | * @bug @p bkpinfo parameter is unused.
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| 99 | */
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[128] | 100 | int closein_tape(struct s_bkpinfo *bkpinfo)
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[1] | 101 | {
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[128] | 102 | /*@ int's ******************************************************* */
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| 103 | int retval = 0;
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| 104 | int res = 0;
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| 105 | int ctrl_chr = '\0';
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[1] | 106 |
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[128] | 107 | /*@ buffers ***************************************************** */
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| 108 | char fname[MAX_STR_LEN];
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[1] | 109 |
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[128] | 110 | /*@ long long's ************************************************* */
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| 111 | long long size;
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| 112 | char *blk;
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| 113 | int i;
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[1] | 114 |
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[1080] | 115 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 116 |
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[128] | 117 | log_it("closein_tape() -- entering");
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| 118 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 119 | retval += res;
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| 120 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 121 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 122 | }
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| 123 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 124 | retval += res;
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| 125 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 126 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 127 | }
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| 128 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 129 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 130 | }
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| 131 | sleep(1);
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| 132 | paranoid_system("sync");
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| 133 | sleep(1);
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| 134 | paranoid_pclose(g_tape_stream);
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| 135 | log_it("closein_tape() -- leaving");
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[1] | 136 | /*
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| 137 | for(i=0; i < g_tapecatalog->entries; i++)
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| 138 | {
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| 139 | log_it("i=%d type=%s num=%d aux=%ld", i, (g_tapecatalog->el[i].type==fileset)?"fileset":"bigslice", g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux);
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| 140 | }
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| 141 | */
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[128] | 142 | if (!bkpinfo->please_dont_eject) {
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| 143 | eject_device(bkpinfo->media_device);
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| 144 | }
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[1080] | 145 | mr_free(blk);
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| 146 | mr_free(g_tapecatalog);
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[128] | 147 | return (retval);
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[1] | 148 | }
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| 149 |
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| 150 |
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| 151 |
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| 152 | /**
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| 153 | * Close the global output file descriptor which Mondo has been using to write
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| 154 | * to the tape device (via buffer or dd).
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| 155 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 156 | * @return 0 for success, nonzero for failure.
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| 157 | * @note This should be called by backup processes only.
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| 158 | */
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[128] | 159 | int closeout_tape(struct s_bkpinfo *bkpinfo)
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[1] | 160 | {
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[128] | 161 | /*@ int's ******************************************************* */
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| 162 | int retval = 0;
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[1] | 163 | // int res = 0;
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| 164 | // int ctrl_chr = '\0';
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| 165 |
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[128] | 166 | /*@ buffers ***************************************************** */
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[1] | 167 | // char fname[MAX_STR_LEN];
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| 168 |
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[128] | 169 | /*@ long long's ************************************************* */
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[1] | 170 | // long long size;
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[128] | 171 | int i;
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| 172 | char *blk;
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[1] | 173 |
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[1080] | 174 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 175 |
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[128] | 176 | sleep(1);
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| 177 | paranoid_system("sync");
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| 178 | sleep(1);
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| 179 | log_it("closeout_tape() -- entering");
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| 180 | retval +=
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[684] | 181 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[128] | 182 | BLK_END_OF_BACKUP);
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[684] | 183 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[1] | 184 | /* write 1MB of crap */
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[128] | 185 | for (i = 0; i < 256 * 1024; i++) {
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| 186 | blk[i] = (int) (random() & 0xFF);
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| 187 | }
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| 188 | for (i = 0; i < 4 * 8; i++) {
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| 189 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 190 | if (should_we_write_to_next_tape
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[684] | 191 | (bkpinfo->media_size[g_current_media_number], (off_t)256 * 1024)) {
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[128] | 192 | start_to_write_to_next_tape(bkpinfo);
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| 193 | }
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| 194 | }
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[1] | 195 | /* write 1MB of zeroes */
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| 196 | /*
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| 197 | for (i = 0; i < 256*1024; i++)
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| 198 | {
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| 199 | blk[i] = 0;
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| 200 | }
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| 201 | for (i = 0; i < 4; i++)
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| 202 | {
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| 203 | fwrite (blk, 1, 256*1024, g_tape_stream);
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| 204 | if (should_we_write_to_next_tape (bkpinfo->media_size[g_current_media_number], 256*1024))
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| 205 | {
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| 206 | start_to_write_to_next_tape (bkpinfo);
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| 207 | }
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| 208 | }
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| 209 | */
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[128] | 210 | sleep(2);
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| 211 | paranoid_pclose(g_tape_stream);
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| 212 | log_it("closeout_tape() -- leaving");
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| 213 | for (i = 0; i < g_tapecatalog->entries; i++) {
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| 214 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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| 215 | (g_tapecatalog->el[i].type ==
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| 216 | fileset) ? "fileset" : "bigslice",
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| 217 | g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux,
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| 218 | g_tapecatalog->el[i].tape_posK);
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| 219 | }
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| 220 | // if (!bkpinfo->please_dont_eject)
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| 221 | // { eject_device(bkpinfo->media_device); }
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[1080] | 222 | mr_free(blk);
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| 223 | mr_free(g_tapecatalog);
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[128] | 224 | return (retval);
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[1] | 225 | }
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| 226 |
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| 227 |
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| 228 |
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[128] | 229 | bool mt_says_tape_exists(char *dev)
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[1] | 230 | {
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[128] | 231 | char *command;
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| 232 | int res;
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[1] | 233 |
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[128] | 234 | malloc_string(command);
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| 235 | sprintf(command, "mt -f %s status", dev);
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| 236 | res = run_program_and_log_output(command, 1);
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[1080] | 237 | mr_free(command);
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[128] | 238 | if (res) {
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| 239 | return (FALSE);
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| 240 | } else {
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| 241 | return (TRUE);
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| 242 | }
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[1] | 243 | }
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| 244 |
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| 245 |
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| 246 |
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| 247 | /**
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| 248 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 249 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 250 | * @param dev Where to put the found tape device.
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| 251 | * @param siz Where to put the tape size (a string like "4GB")
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| 252 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 253 | */
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[128] | 254 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 255 | {
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[128] | 256 | char tmp[MAX_STR_LEN];
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| 257 | char command[MAX_STR_LEN * 2];
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| 258 | char cdr_exe[MAX_STR_LEN];
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[1] | 259 | // char tape_description_[MAX_STR_LEN];
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| 260 | // char tape_manufacturer_cdr[MAX_STR_LEN];
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| 261 | // FILE*fin;
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[128] | 262 | int res;
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[1] | 263 |
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[128] | 264 | log_to_screen("I am looking for your tape streamer. Please wait.");
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| 265 | dev[0] = siz[0] = '\0';
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| 266 | if (find_home_of_exe("cdrecord")) {
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| 267 | strcpy(cdr_exe, "cdrecord");
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| 268 | } else {
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| 269 | strcpy(cdr_exe, "dvdrecord");
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[1] | 270 | }
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[128] | 271 | sprintf(command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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| 272 | cdr_exe);
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| 273 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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| 274 | if (atoi(tmp) != 1) {
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| 275 | log_it
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| 276 | ("Either too few or too many tape streamers for me to detect...");
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| 277 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 278 | return 1;
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| 279 | }
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| 280 | sprintf(command,
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| 281 | "%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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| 282 | cdr_exe);
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| 283 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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| 284 | if (strlen(tmp) < 2) {
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| 285 | log_it("Could not find tape device");
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| 286 | return 1;
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| 287 | }
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| 288 | sprintf(command,
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| 289 | "%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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| 290 | cdr_exe);
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| 291 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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| 292 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 293 | dev[strlen(dev) - 1] = '\0';
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| 294 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
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| 295 | res = 0;
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| 296 | if (!mt_says_tape_exists(dev)) {
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| 297 | strcpy(dev, ALT_TAPE);
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| 298 | if (!mt_says_tape_exists(dev)) {
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| 299 | log_it("Cannot openin %s", dev);
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| 300 | strcpy(dev, "/dev/st0");
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| 301 | if (!mt_says_tape_exists(dev)) {
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| 302 | log_it("Cannot openin %s", dev);
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| 303 | strcpy(dev, "/dev/osst0");
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| 304 | if (!mt_says_tape_exists(dev)) {
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| 305 | res++;
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| 306 | } else {
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| 307 | res = 0;
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| 308 | }
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| 309 | }
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| 310 | }
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| 311 | }
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[1] | 312 |
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[128] | 313 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 314 |
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| 315 | strcpy(tmp, call_program_and_get_last_line_of_output("\
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[1] | 316 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
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| 317 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
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| 318 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'"));
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| 319 |
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[128] | 320 | if (mt_says_tape_exists(dev)) {
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| 321 | res = 0;
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| 322 | } else {
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| 323 | log_it("Turning %s", dev);
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| 324 | strcpy(tmp, (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
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| 325 | sprintf(dev, "/dev/os%s", tmp);
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| 326 | log_it("...into %s", dev);
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| 327 | if (mt_says_tape_exists(dev)) {
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| 328 | res = 0;
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| 329 | } else {
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| 330 | res++;
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| 331 | }
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| 332 | }
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[1] | 333 |
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[128] | 334 | siz[0] = '\0';
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| 335 | log_it("res=%d; dev=%s", res, dev);
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[1] | 336 |
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[128] | 337 | if (res) {
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| 338 | return (res);
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| 339 | }
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[1] | 340 |
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[128] | 341 | if (strlen(tmp) < 2) {
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| 342 | siz[0] = '\0';
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| 343 | log_it("Warning - size of tape unknown");
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| 344 | return (0);
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| 345 | } else {
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| 346 | strcpy(siz, tmp);
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| 347 | return (0);
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| 348 | }
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[1] | 349 | }
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| 350 |
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| 351 |
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| 352 |
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| 353 |
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| 354 |
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| 355 |
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[128] | 356 | int read_EXAT_files_from_tape(struct s_bkpinfo *bkpinfo,
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| 357 | long long *ptmp_size, char *tmp_fname,
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| 358 | int *pctrl_chr, char *xattr_fname,
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| 359 | char *acl_fname)
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[1] | 360 | {
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[128] | 361 | int res = 0;
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| 362 | int retval = 0;
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[955] | 363 | char *fname = (char *)&res; /* Should NOT be NULL */
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[128] | 364 |
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[1] | 365 | // xattr
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[948] | 366 | if (g_getfattr) {
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[955] | 367 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 368 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 369 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 370 | }
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[955] | 371 | if (!strstr(fname, "xattr")) {
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[948] | 372 | fatal_error("Wrong order, sunshine.");
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| 373 | }
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| 374 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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| 375 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 376 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 377 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 378 | }
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[1107] | 379 | mr_msg(1, "Got xattr");
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[128] | 380 | }
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[1] | 381 | // acl
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[948] | 382 | if (g_getfacl) {
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[955] | 383 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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| 384 | if (!strstr(fname, "acl")) {
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[948] | 385 | fatal_error("Wrong order, sunshine.");
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| 386 | }
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| 387 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 388 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 389 | }
|
---|
| 390 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
| 391 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 392 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 393 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 394 | }
|
---|
| 395 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 396 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 397 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 398 | }
|
---|
[1107] | 399 | mr_msg(1, "Got acl");
|
---|
[128] | 400 | }
|
---|
[1] | 401 | // tarball itself
|
---|
[128] | 402 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1107] | 403 | mr_msg(1, "now looking for afioball");
|
---|
[128] | 404 | return (retval);
|
---|
[1] | 405 | }
|
---|
| 406 |
|
---|
| 407 |
|
---|
[128] | 408 | int write_EXAT_files_to_tape(struct s_bkpinfo *bkpinfo, char *xattr_fname,
|
---|
| 409 | char *acl_fname)
|
---|
[1] | 410 | {
|
---|
[128] | 411 | int res = 0;
|
---|
[948] | 412 | if (g_getfattr) {
|
---|
[955] | 413 | // xattr
|
---|
[948] | 414 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 415 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 416 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 417 | BLK_START_EXAT_FILE);
|
---|
| 418 | write_file_to_stream_from_file(bkpinfo, xattr_fname);
|
---|
| 419 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
| 420 | }
|
---|
| 421 | if (g_getfacl) {
|
---|
[955] | 422 | // acl
|
---|
[948] | 423 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
| 424 | BLK_START_EXAT_FILE);
|
---|
| 425 | write_file_to_stream_from_file(bkpinfo, acl_fname);
|
---|
| 426 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
| 427 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 428 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 429 | }
|
---|
[128] | 430 | return (res);
|
---|
[1] | 431 | }
|
---|
| 432 |
|
---|
| 433 |
|
---|
| 434 |
|
---|
| 435 |
|
---|
| 436 | /**
|
---|
| 437 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 438 | * @param tapeno The tape number to insist on.
|
---|
| 439 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 440 | * inserted the right tape.
|
---|
| 441 | */
|
---|
| 442 | void insist_on_this_tape_number(int tapeno)
|
---|
| 443 | {
|
---|
[128] | 444 | int i;
|
---|
| 445 | char tmp[MAX_STR_LEN];
|
---|
[1] | 446 |
|
---|
[128] | 447 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 448 | if (g_current_media_number != tapeno) {
|
---|
| 449 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 450 | sprintf(tmp,
|
---|
[541] | 451 | "When the tape drive goes quiet, please insert volume %d in this series.",
|
---|
[128] | 452 | tapeno);
|
---|
| 453 | popup_and_OK(tmp);
|
---|
[541] | 454 | open_evalcall_form("Waiting while the tape drive settles");
|
---|
[128] | 455 | } else {
|
---|
[541] | 456 | open_evalcall_form("Waiting while the tape drive rewinds");
|
---|
[128] | 457 | }
|
---|
[1] | 458 |
|
---|
[128] | 459 | for (i = 0; i <= 100; i += 2) {
|
---|
| 460 | usleep(100000);
|
---|
| 461 | update_evalcall_form(i);
|
---|
| 462 | }
|
---|
| 463 | close_evalcall_form();
|
---|
| 464 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 465 | g_current_media_number = tapeno;
|
---|
[1] | 466 |
|
---|
[128] | 467 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 468 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 469 | }
|
---|
| 470 |
|
---|
| 471 |
|
---|
| 472 |
|
---|
| 473 |
|
---|
| 474 | /**
|
---|
| 475 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 476 | */
|
---|
[128] | 477 | void log_tape_pos(void)
|
---|
[1] | 478 | {
|
---|
[128] | 479 | /*@ buffers ***************************************************** */
|
---|
[1] | 480 |
|
---|
| 481 |
|
---|
[128] | 482 | /*@ end vars *************************************************** */
|
---|
[1] | 483 |
|
---|
[128] | 484 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 485 | (long) g_tape_posK >> 10);
|
---|
[1] | 486 | }
|
---|
| 487 |
|
---|
| 488 |
|
---|
| 489 |
|
---|
| 490 |
|
---|
| 491 | /**
|
---|
| 492 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 493 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 494 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 495 | * otherwise we generate a fatal_error().
|
---|
| 496 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 497 | * @param latest_fname The file to place in the collection.
|
---|
| 498 | * @return 0, always.
|
---|
| 499 | * @bug Return value is redundant.
|
---|
| 500 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 501 | */
|
---|
| 502 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 503 | {
|
---|
[128] | 504 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 505 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
| 506 | int last, curr, i;
|
---|
| 507 | t_archtype type = other;
|
---|
| 508 | char command[MAX_STR_LEN];
|
---|
| 509 | char tmpdir[MAX_STR_LEN];
|
---|
| 510 | char old_fname[MAX_STR_LEN];
|
---|
| 511 | char *p;
|
---|
| 512 | char suffix[16];
|
---|
[1] | 513 |
|
---|
[128] | 514 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
| 515 | sprintf(tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
| 516 | if ((p = strrchr(latest_fname, '.'))) {
|
---|
| 517 | strcpy(suffix, ++p);
|
---|
| 518 | } else {
|
---|
| 519 | suffix[0] = '\0';
|
---|
[1] | 520 | }
|
---|
[128] | 521 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 522 | type = fileset;
|
---|
| 523 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 524 | type = biggieslice;
|
---|
| 525 | } else {
|
---|
| 526 | log_it("fname = %s", latest_fname);
|
---|
| 527 | fatal_error
|
---|
| 528 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 529 | }
|
---|
| 530 | mkdir(tmpdir, 0x700);
|
---|
| 531 | sprintf(command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
| 532 | if (run_program_and_log_output(command, 6)) {
|
---|
| 533 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 534 | latest_fname, tmpdir);
|
---|
| 535 | }
|
---|
| 536 | last = g_tapecatalog->entries - 1;
|
---|
| 537 | if (last <= 0) {
|
---|
| 538 | iamhere("Too early to start deleting from collection.");
|
---|
| 539 | return (0);
|
---|
| 540 | }
|
---|
| 541 | final_alleged_writeK = g_tapecatalog->el[last].tape_posK;
|
---|
| 542 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
| 543 | for (curr = last; curr >= 0; curr--) {
|
---|
| 544 | cposK = g_tapecatalog->el[curr].tape_posK;
|
---|
| 545 | if (cposK < final_projected_certain_writeK) {
|
---|
| 546 | final_actually_certain_writeK = cposK;
|
---|
| 547 | break;
|
---|
| 548 | }
|
---|
| 549 | }
|
---|
| 550 | if (curr < 0) {
|
---|
| 551 | iamhere
|
---|
| 552 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 553 | return (0);
|
---|
| 554 | }
|
---|
[1] | 555 | // log_it( "There are %lld KB (more than %d KB) in my backcatalog", final_alleged_writeK - final_actually_certain_writeK, bufsize_K);
|
---|
| 556 |
|
---|
[128] | 557 | for (i = curr - 1; i >= 0 && curr - i < 10; i--) {
|
---|
| 558 | sprintf(old_fname, "%s/%s", tmpdir, g_tapecatalog->el[i].fname);
|
---|
| 559 | unlink(old_fname);
|
---|
| 560 | }
|
---|
| 561 | return (0);
|
---|
[1] | 562 | }
|
---|
| 563 |
|
---|
| 564 |
|
---|
| 565 |
|
---|
| 566 |
|
---|
| 567 | /**
|
---|
| 568 | * Open the CD stream for input.
|
---|
| 569 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 570 | * @return 0 for success, nonzero for failure.
|
---|
| 571 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 572 | */
|
---|
[128] | 573 | int openin_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 574 | {
|
---|
[128] | 575 | return (openin_tape(bkpinfo));
|
---|
[1] | 576 | }
|
---|
| 577 |
|
---|
| 578 | /**
|
---|
| 579 | * FIFO used to read/write to the tape device.
|
---|
| 580 | * @bug This seems obsolete now that we call an external @c buffer program. Please look onto this.
|
---|
| 581 | */
|
---|
| 582 | char g_tape_fifo[MAX_STR_LEN];
|
---|
| 583 |
|
---|
| 584 |
|
---|
| 585 |
|
---|
[128] | 586 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
| 587 | long internal_tape_block_size)
|
---|
[1] | 588 | {
|
---|
[128] | 589 | char *tmp;
|
---|
| 590 | int res;
|
---|
[1] | 591 |
|
---|
[128] | 592 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
[1107] | 593 | mr_msg(1,
|
---|
[128] | 594 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 595 | return (0);
|
---|
| 596 | }
|
---|
| 597 | malloc_string(tmp);
|
---|
| 598 | sprintf(tmp, "mt -f %s setblk %ld", tapedev, internal_tape_block_size);
|
---|
| 599 | res = run_program_and_log_output(tmp, 3);
|
---|
[1080] | 600 | mr_free(tmp);
|
---|
[128] | 601 | return (res);
|
---|
[1] | 602 | }
|
---|
| 603 |
|
---|
| 604 |
|
---|
| 605 |
|
---|
| 606 | /**
|
---|
| 607 | * Open the tape device for input.
|
---|
| 608 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 609 | * - @c bkpinfo->media_device
|
---|
| 610 | * - @c bkpinfo->tmpdir
|
---|
| 611 | * @return 0 for success, nonzero for failure.
|
---|
| 612 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 613 | */
|
---|
[128] | 614 | int openin_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 615 | {
|
---|
[128] | 616 | /*@ buffer ***************************************************** */
|
---|
| 617 | char fname[MAX_STR_LEN];
|
---|
| 618 | char *datablock;
|
---|
| 619 | char tmp[MAX_STR_LEN];
|
---|
| 620 | char old_cwd[MAX_STR_LEN];
|
---|
| 621 | char outfname[MAX_STR_LEN];
|
---|
| 622 | /*@ int ******************************************************* */
|
---|
| 623 | int i;
|
---|
| 624 | int j;
|
---|
| 625 | int res;
|
---|
| 626 | long length, templong;
|
---|
| 627 | size_t k;
|
---|
| 628 | int retval = 0;
|
---|
| 629 | int ctrl_chr;
|
---|
[1] | 630 |
|
---|
[128] | 631 | /*@ long long ************************************************* */
|
---|
| 632 | long long size;
|
---|
[1] | 633 |
|
---|
[128] | 634 | /*@ pointers ************************************************** */
|
---|
| 635 | FILE *fout;
|
---|
[1] | 636 |
|
---|
[128] | 637 | /*@ end vars *************************************************** */
|
---|
[1] | 638 |
|
---|
[128] | 639 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
[1080] | 640 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
[128] | 641 | g_tapecatalog->entries = 0;
|
---|
| 642 | g_tape_posK = 0;
|
---|
| 643 | if (g_tape_stream) {
|
---|
| 644 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 645 | return (0);
|
---|
| 646 | }
|
---|
| 647 | insist_on_this_tape_number(1);
|
---|
| 648 | sprintf(outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
| 649 | make_hole_for_file(outfname);
|
---|
[1] | 650 |
|
---|
[128] | 651 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
| 652 | bkpinfo->internal_tape_block_size);
|
---|
[1] | 653 |
|
---|
| 654 | // start_buffer_process( bkpinfo->media_device, g_tape_fifo, FALSE);
|
---|
[128] | 655 | log_it("Opening IN tape");
|
---|
| 656 | if (!
|
---|
| 657 | (g_tape_stream =
|
---|
| 658 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 659 | bkpinfo->internal_tape_block_size))) {
|
---|
| 660 | log_OS_error(g_tape_fifo);
|
---|
[541] | 661 | log_to_screen("Cannot openin stream device");
|
---|
[128] | 662 | return (1);
|
---|
| 663 | }
|
---|
[541] | 664 | log_to_screen("Reading stream");
|
---|
[128] | 665 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1] | 666 | /* skip data disks */
|
---|
[128] | 667 | open_evalcall_form("Skipping data disks on stream");
|
---|
[541] | 668 | log_to_screen("Skipping data disks on stream");
|
---|
[128] | 669 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 670 | log_OS_error(outfname);
|
---|
[541] | 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);
|
---|
[1] | 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);
|
---|
| 707 | sprintf(tmp, "tar -zxf %s tmp/mondo-restore.cfg 2> /dev/null",
|
---|
| 708 | outfname);
|
---|
| 709 | paranoid_system(tmp);
|
---|
| 710 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 711 | chdir(old_cwd);
|
---|
| 712 | unlink(outfname);
|
---|
| 713 | return (retval);
|
---|
[1] | 714 | }
|
---|
| 715 |
|
---|
| 716 |
|
---|
| 717 | /**
|
---|
| 718 | * Start writing to a CD stream.
|
---|
| 719 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 720 | * @param speed The speed to write at.
|
---|
| 721 | * @return 0 for success, nonzero for failure.
|
---|
| 722 | * @note This should be called only from backup processes.
|
---|
| 723 | */
|
---|
[128] | 724 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 725 | {
|
---|
[128] | 726 | /*@ buffers ***************************************************** */
|
---|
| 727 | char command[MAX_STR_LEN * 2];
|
---|
[1] | 728 |
|
---|
[128] | 729 | /*@ end vars *************************************************** */
|
---|
[1] | 730 |
|
---|
| 731 | /* add 'dummy' if testing */
|
---|
[128] | 732 | sprintf(command,
|
---|
| 733 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 734 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
[1] | 735 | /* initialise the catalog */
|
---|
[128] | 736 | g_current_media_number = 1;
|
---|
[1080] | 737 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
[128] | 738 | g_tapecatalog->entries = 0;
|
---|
[1] | 739 | /* log stuff */
|
---|
[128] | 740 | log_it("Opening OUT cdstream with the command");
|
---|
| 741 | log_it(command);
|
---|
[1] | 742 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[128] | 743 | g_tape_stream = popen(command, "w");
|
---|
| 744 | if (g_tape_stream) {
|
---|
| 745 | return (0);
|
---|
| 746 | } else {
|
---|
[541] | 747 | log_to_screen("Failed to openout to cdstream (fifo)");
|
---|
[128] | 748 | return (1);
|
---|
| 749 | }
|
---|
[1] | 750 | }
|
---|
| 751 |
|
---|
| 752 | /**
|
---|
| 753 | * Start writing to a tape device for the backup.
|
---|
| 754 | * @param tapedev The tape device to open for writing.
|
---|
| 755 | * @return 0 for success, nonzero for failure.
|
---|
| 756 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 757 | * EXISTING DATA on the tape!
|
---|
| 758 | */
|
---|
[128] | 759 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
[1] | 760 | {
|
---|
| 761 | // char sz_call_to_buffer[MAX_STR_LEN];
|
---|
| 762 |
|
---|
[128] | 763 | g_current_media_number = 1;
|
---|
| 764 | if (g_tape_stream) {
|
---|
| 765 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 766 | return (0);
|
---|
| 767 | }
|
---|
[1080] | 768 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
[128] | 769 | g_tapecatalog->entries = 0;
|
---|
| 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))) {
|
---|
| 777 | log_OS_error(g_tape_fifo);
|
---|
[541] | 778 | log_to_screen("Cannot openin stream device");
|
---|
[128] | 779 | return (1);
|
---|
| 780 | }
|
---|
| 781 | return (0);
|
---|
[1] | 782 | }
|
---|
| 783 |
|
---|
| 784 |
|
---|
| 785 |
|
---|
| 786 |
|
---|
| 787 | /**
|
---|
| 788 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 789 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 790 | * @param outfile The file to write to.
|
---|
| 791 | * @param size The size of the file in the input stream.
|
---|
| 792 | * @return 0 for success, nonzero for failure.
|
---|
| 793 | */
|
---|
| 794 | int
|
---|
[128] | 795 | read_file_from_stream_to_file(struct s_bkpinfo *bkpinfo, char *outfile,
|
---|
| 796 | long long size)
|
---|
[1] | 797 | {
|
---|
| 798 |
|
---|
[128] | 799 | /*@ int ******************************************************** */
|
---|
| 800 | int res;
|
---|
[1] | 801 |
|
---|
[128] | 802 | /*@ end vars *************************************************** */
|
---|
[1] | 803 |
|
---|
[128] | 804 | res = read_file_from_stream_FULL(bkpinfo, outfile, NULL, size);
|
---|
[1] | 805 |
|
---|
[128] | 806 | return (res);
|
---|
[1] | 807 | }
|
---|
| 808 |
|
---|
| 809 |
|
---|
| 810 |
|
---|
| 811 | /**
|
---|
| 812 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 813 | * by @p fout.
|
---|
| 814 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 815 | * @param fout The stream to write the file to.
|
---|
| 816 | * @param size The size of the file in bytes.
|
---|
| 817 | * @return 0 for success, nonzero for failure.
|
---|
| 818 | */
|
---|
| 819 | int
|
---|
[128] | 820 | read_file_from_stream_to_stream(struct s_bkpinfo *bkpinfo, FILE * fout,
|
---|
| 821 | long long size)
|
---|
[1] | 822 | {
|
---|
| 823 |
|
---|
[128] | 824 | /*@ int ******************************************************** */
|
---|
| 825 | int res;
|
---|
[1] | 826 |
|
---|
[128] | 827 | /*@ end vars *************************************************** */
|
---|
[1] | 828 |
|
---|
[128] | 829 | res = read_file_from_stream_FULL(bkpinfo, NULL, fout, size);
|
---|
[1] | 830 | /* fflush(g_tape_stream);
|
---|
| 831 | fflush(fout);*/
|
---|
[128] | 832 | return (res);
|
---|
[1] | 833 | }
|
---|
| 834 |
|
---|
| 835 |
|
---|
| 836 |
|
---|
| 837 | /**
|
---|
| 838 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 839 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 840 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 841 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 842 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 843 | * @param outfname If non-NULL, write to this file.
|
---|
| 844 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 845 | * @param orig_size The original length of the file in bytes.
|
---|
| 846 | * @return 0 for success, nonzero for failure.
|
---|
| 847 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 848 | */
|
---|
| 849 | int
|
---|
[128] | 850 | read_file_from_stream_FULL(struct s_bkpinfo *bkpinfo, char *outfname,
|
---|
| 851 | FILE * foutstream, long long orig_size)
|
---|
[1] | 852 | {
|
---|
[128] | 853 | /*@ buffers ***************************************************** */
|
---|
| 854 | char *tmp;
|
---|
| 855 | char *datablock;
|
---|
| 856 | char *temp_fname;
|
---|
| 857 | char *temp_cksum;
|
---|
| 858 | char *actual_cksum;
|
---|
[1] | 859 | // char *pA, *pB;
|
---|
| 860 |
|
---|
[128] | 861 | /*@ int ********************************************************* */
|
---|
| 862 | int retval = 0;
|
---|
[1] | 863 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 864 | int i, ch;
|
---|
[1] | 865 | #endif
|
---|
[128] | 866 | int noof_blocks;
|
---|
| 867 | int ctrl_chr;
|
---|
| 868 | int res;
|
---|
| 869 | /*@ pointers **************************************************** */
|
---|
| 870 | FILE *fout;
|
---|
[1] | 871 |
|
---|
[128] | 872 | /*@ long ***************************************************** */
|
---|
| 873 | long bytes_to_write = 0 /*,i */ ;
|
---|
[1] | 874 | // long bytes_successfully_read_in_this_time = 0;
|
---|
| 875 |
|
---|
[128] | 876 | /*@ long long *************************************************** */
|
---|
| 877 | long long temp_size, size;
|
---|
| 878 | long bytes_read, bytes_to_read;
|
---|
| 879 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 880 | long long where_I_was_before_tape_change = 0;
|
---|
| 881 | /*@ unsigned int ************************************************ */
|
---|
| 882 | /* unsigned int ch; */
|
---|
| 883 | unsigned int crc16;
|
---|
| 884 | unsigned int crctt;
|
---|
[1] | 885 |
|
---|
[128] | 886 | bool had_to_resync = FALSE;
|
---|
[1] | 887 |
|
---|
[128] | 888 | /*@ init ******************************************************* */
|
---|
| 889 | malloc_string(tmp);
|
---|
| 890 | malloc_string(temp_fname);
|
---|
| 891 | malloc_string(temp_cksum);
|
---|
| 892 | malloc_string(actual_cksum);
|
---|
[1080] | 893 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
[128] | 894 | crc16 = 0;
|
---|
| 895 | crctt = 0;
|
---|
| 896 | size = orig_size;
|
---|
[1] | 897 |
|
---|
[128] | 898 | /*@ end vars *************************************************** */
|
---|
[1] | 899 |
|
---|
[128] | 900 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 901 | if (orig_size != temp_size && orig_size != -1) {
|
---|
| 902 | sprintf(tmp,
|
---|
| 903 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 904 | (long) size >> 10, (long) temp_size >> 10);
|
---|
| 905 | log_to_screen(tmp);
|
---|
| 906 | }
|
---|
| 907 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 908 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 909 | return (1);
|
---|
| 910 | }
|
---|
| 911 | sprintf(tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
| 912 | outfname, (long) size >> 10);
|
---|
[1] | 913 |
|
---|
[128] | 914 | if (foutstream) {
|
---|
| 915 | fout = foutstream;
|
---|
| 916 | } else {
|
---|
| 917 | fout = fopen(outfname, "w");
|
---|
[1] | 918 | }
|
---|
[128] | 919 | if (!fout) {
|
---|
| 920 | log_OS_error(outfname);
|
---|
[541] | 921 | log_to_screen("Cannot openout file");
|
---|
[128] | 922 | return (1);
|
---|
| 923 | }
|
---|
| 924 | total_read_from_tape_for_this_file = 0;
|
---|
| 925 | for (noof_blocks = 0; size > 0;
|
---|
| 926 | noof_blocks++, size -=
|
---|
| 927 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 928 | bytes_read) {
|
---|
| 929 | bytes_to_write =
|
---|
| 930 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 931 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 932 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 933 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 934 | // crctt=crc16=0;
|
---|
| 935 | where_I_was_before_tape_change = size;
|
---|
[1107] | 936 | mr_msg(4, "where_I_was_... = %lld",
|
---|
[128] | 937 | where_I_was_before_tape_change);
|
---|
| 938 | start_to_read_from_next_tape(bkpinfo);
|
---|
[1107] | 939 | mr_msg(4, "Started reading from next tape.");
|
---|
[128] | 940 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
[1107] | 941 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
[128] | 942 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 943 | size -= bytes_to_write) {
|
---|
| 944 | bytes_read =
|
---|
| 945 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 946 | }
|
---|
[1107] | 947 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
[128] | 948 | where_I_was_before_tape_change);
|
---|
| 949 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 950 | had_to_resync = TRUE;
|
---|
| 951 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 952 | }
|
---|
[1] | 953 |
|
---|
[128] | 954 | (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] | 955 |
|
---|
| 956 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 957 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 958 | ch = datablock[i];
|
---|
| 959 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 960 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 961 | }
|
---|
[1] | 962 | #endif
|
---|
[128] | 963 | }
|
---|
[1107] | 964 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
[128] | 965 | total_read_from_tape_for_this_file);
|
---|
[1107] | 966 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
[128] | 967 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
| 968 | sprintf(actual_cksum, "%04x%04x", crc16, crctt);
|
---|
| 969 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 970 | } else {
|
---|
| 971 | paranoid_fclose(fout);
|
---|
| 972 | }
|
---|
| 973 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 974 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 975 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 976 | // fatal_error("Bad marker"); // return(1);
|
---|
[128] | 977 | }
|
---|
| 978 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[541] | 979 | sprintf(tmp, "actual cksum=%s; recorded cksum=%s", actual_cksum,
|
---|
[128] | 980 | temp_cksum);
|
---|
| 981 | log_to_screen(tmp);
|
---|
[541] | 982 | sprintf(tmp, "%s (%ld K) is corrupt on tape", temp_fname,
|
---|
[128] | 983 | (long) orig_size >> 10);
|
---|
| 984 | log_to_screen(tmp);
|
---|
| 985 | retval++;
|
---|
| 986 | } else {
|
---|
| 987 | sprintf(tmp, "%s is GOOD on tape", temp_fname);
|
---|
| 988 | /* log_it(tmp); */
|
---|
| 989 | }
|
---|
[1080] | 990 | mr_free(datablock);
|
---|
| 991 | mr_free(tmp);
|
---|
| 992 | mr_free(temp_fname);
|
---|
| 993 | mr_free(temp_cksum);
|
---|
| 994 | mr_free(actual_cksum);
|
---|
[128] | 995 | return (retval);
|
---|
[1] | 996 | }
|
---|
| 997 |
|
---|
| 998 |
|
---|
| 999 |
|
---|
| 1000 | /**
|
---|
| 1001 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 1002 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 1003 | * the filename (if it's file-related), and the block type.
|
---|
| 1004 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 1005 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 1006 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 1007 | * @return 0 for success, nonzero for failure.
|
---|
| 1008 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 1009 | */
|
---|
| 1010 | int
|
---|
[128] | 1011 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 1012 | int *pcontrol_char)
|
---|
[1] | 1013 | {
|
---|
| 1014 |
|
---|
[128] | 1015 | /*@ buffers ***************************************************** */
|
---|
| 1016 | char *tempblock;
|
---|
[1] | 1017 |
|
---|
[128] | 1018 | /*@ int ********************************************************* */
|
---|
| 1019 | int i, retval;
|
---|
[1] | 1020 |
|
---|
[128] | 1021 | /*@ end vars *************************************************** */
|
---|
[1] | 1022 |
|
---|
[1080] | 1023 | tempblock = (char *) mr_malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
[1] | 1024 |
|
---|
[128] | 1025 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1026 | tempblock[i] = 0;
|
---|
| 1027 | }
|
---|
| 1028 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1029 | g_tape_posK +=
|
---|
| 1030 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1031 | g_tape_stream) / 1024;
|
---|
| 1032 | }
|
---|
[1] | 1033 | /* memcpy((char*)plength_of_incoming_file,(char*)tempblock+7001,sizeof(long long)); */
|
---|
| 1034 | /* for(*plen=0,i=7;i>=0;i--) {*plen<<=8; *plen |= tempblock[7001+i];} */
|
---|
[128] | 1035 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
| 1036 | if (strcmp(tempblock + 6000 + *pcontrol_char, "Mondolicious, baby")) {
|
---|
| 1037 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1038 | }
|
---|
| 1039 | strcpy(filename, tempblock + 1000);
|
---|
[1] | 1040 | /* strcpy(cksum,tempblock+5555);*/
|
---|
| 1041 | /* log_it( "%s (reading) fname=%s, filesize=%ld K",
|
---|
| 1042 | marker_to_string (*pcontrol_char), filename,
|
---|
| 1043 | (long) ((*plen) >> 10));
|
---|
| 1044 | */
|
---|
[128] | 1045 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1046 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1047 | retval = 1;
|
---|
| 1048 | } else {
|
---|
| 1049 | retval = 0;
|
---|
| 1050 | }
|
---|
| 1051 | for (i = 1000; i < 1020; i++) {
|
---|
| 1052 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1053 | tempblock[i] = ' ';
|
---|
| 1054 | }
|
---|
| 1055 | }
|
---|
| 1056 | tempblock[i] = '\0';
|
---|
[1107] | 1057 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1058 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1059 | (long) (*plen) >> 10);
|
---|
[1080] | 1060 | mr_free(tempblock);
|
---|
[128] | 1061 | return (retval);
|
---|
[1] | 1062 | }
|
---|
| 1063 |
|
---|
| 1064 |
|
---|
| 1065 |
|
---|
| 1066 | /**
|
---|
| 1067 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1068 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1069 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1070 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1071 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1072 | * @param number The fileset number or biggiefile number.
|
---|
| 1073 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1074 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1075 | * @return The index of the record we just added.
|
---|
| 1076 | */
|
---|
[128] | 1077 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1078 | char *fn)
|
---|
[1] | 1079 | {
|
---|
[128] | 1080 | int last;
|
---|
| 1081 | char fname[MAX_TAPECAT_FNAME_LEN];
|
---|
| 1082 | char *p;
|
---|
[1] | 1083 |
|
---|
[128] | 1084 | p = strrchr(fn, '/');
|
---|
| 1085 | if (p) {
|
---|
| 1086 | p++;
|
---|
| 1087 | } else {
|
---|
| 1088 | p = fn;
|
---|
| 1089 | }
|
---|
| 1090 | strncpy(fname, p, MAX_TAPECAT_FNAME_LEN);
|
---|
| 1091 | fname[MAX_TAPECAT_FNAME_LEN] = '\0';
|
---|
| 1092 | last = g_tapecatalog->entries;
|
---|
| 1093 | if (last >= MAX_TAPECATALOG_ENTRIES) {
|
---|
| 1094 | log_it
|
---|
| 1095 | ("Warning - can't log #%d in tape catalog - too many entries already",
|
---|
| 1096 | number);
|
---|
| 1097 | return (-1);
|
---|
| 1098 | }
|
---|
| 1099 | g_tapecatalog->el[last].type = type;
|
---|
| 1100 | g_tapecatalog->el[last].number = number;
|
---|
| 1101 | g_tapecatalog->el[last].aux = aux;
|
---|
| 1102 | g_tapecatalog->el[last].tape_posK = g_tape_posK;
|
---|
| 1103 | strcpy(g_tapecatalog->el[last].fname, fname);
|
---|
| 1104 | g_tapecatalog->entries++;
|
---|
| 1105 | return (last); // returns the index of the record we've jsut added
|
---|
[1] | 1106 | }
|
---|
| 1107 |
|
---|
| 1108 |
|
---|
| 1109 |
|
---|
| 1110 |
|
---|
| 1111 | /**
|
---|
| 1112 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1113 | * (got SIGPIPE) or look like we will.
|
---|
| 1114 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1115 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1116 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1117 | * autodetecting the size. Huh?
|
---|
| 1118 | */
|
---|
[684] | 1119 |
|
---|
| 1120 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1121 | bool
|
---|
[128] | 1122 | should_we_write_to_next_tape(long mediasize,
|
---|
[684] | 1123 | off_t length_of_incoming_file)
|
---|
[1] | 1124 | {
|
---|
[128] | 1125 | /*@ bool's ***************************************************** */
|
---|
| 1126 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1127 |
|
---|
[128] | 1128 | /*@ end vars *************************************************** */
|
---|
[1] | 1129 |
|
---|
[128] | 1130 | if (mediasize == 0) {
|
---|
| 1131 | return (FALSE);
|
---|
| 1132 | }
|
---|
| 1133 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1134 | log_it("mediasize = %ld", mediasize);
|
---|
| 1135 | we_need_a_new_tape = TRUE;
|
---|
[541] | 1136 | log_to_screen("Should have started a new tape/CD already");
|
---|
[128] | 1137 | }
|
---|
| 1138 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
| 1139 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
| 1140 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1141 | mediasize);
|
---|
| 1142 | we_need_a_new_tape = TRUE;
|
---|
| 1143 | }
|
---|
| 1144 | return (we_need_a_new_tape);
|
---|
[1] | 1145 | }
|
---|
| 1146 |
|
---|
| 1147 |
|
---|
| 1148 | /**
|
---|
| 1149 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1150 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1151 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1152 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1153 | * @return 0 for success, nonzero for failure.
|
---|
| 1154 | */
|
---|
[128] | 1155 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1156 | *the_file_I_was_reading)
|
---|
[1] | 1157 | {
|
---|
[128] | 1158 | char *pA;
|
---|
| 1159 | char *pB;
|
---|
| 1160 | int res;
|
---|
| 1161 | int ctrl_chr;
|
---|
| 1162 | char *temp_fname;
|
---|
| 1163 | char *datablock;
|
---|
| 1164 | long long temp_size, size;
|
---|
| 1165 | long bytes_to_write;
|
---|
[1] | 1166 |
|
---|
[1080] | 1167 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
[128] | 1168 | malloc_string(temp_fname);
|
---|
| 1169 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1170 | if (pB) {
|
---|
| 1171 | pB++;
|
---|
| 1172 | } else {
|
---|
| 1173 | pB = the_file_I_was_reading;
|
---|
[1] | 1174 | }
|
---|
[1107] | 1175 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1176 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
[128] | 1177 | ctrl_chr = -1;
|
---|
| 1178 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1179 | res =
|
---|
| 1180 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1181 | &ctrl_chr);
|
---|
| 1182 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1183 | break;
|
---|
| 1184 | }
|
---|
[1107] | 1185 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1186 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
[1107] | 1187 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1188 | }
|
---|
| 1189 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1190 | res =
|
---|
| 1191 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1192 | &ctrl_chr);
|
---|
| 1193 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1194 | break;
|
---|
| 1195 | }
|
---|
[1107] | 1196 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1197 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
[1107] | 1198 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1199 | }
|
---|
| 1200 | pA = strrchr(temp_fname, '/');
|
---|
| 1201 | if (pA) {
|
---|
| 1202 | pA++;
|
---|
| 1203 | } else {
|
---|
| 1204 | pA = temp_fname;
|
---|
| 1205 | }
|
---|
| 1206 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1207 | if (pB) {
|
---|
| 1208 | pB++;
|
---|
| 1209 | } else {
|
---|
| 1210 | pB = the_file_I_was_reading;
|
---|
| 1211 | }
|
---|
| 1212 | while (strcmp(pA, pB)) {
|
---|
[1107] | 1213 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
[128] | 1214 | the_file_I_was_reading);
|
---|
| 1215 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1216 | bytes_to_write =
|
---|
| 1217 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 1218 | // FIXME - needs error-checking and -catching
|
---|
| 1219 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
| 1220 | }
|
---|
| 1221 | res =
|
---|
| 1222 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1223 | &ctrl_chr);
|
---|
| 1224 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1225 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1226 | }
|
---|
| 1227 | res =
|
---|
| 1228 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1229 | &ctrl_chr);
|
---|
| 1230 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1231 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1232 | }
|
---|
| 1233 | res =
|
---|
| 1234 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1235 | &ctrl_chr);
|
---|
| 1236 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1237 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1238 | }
|
---|
| 1239 | res =
|
---|
| 1240 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1241 | &ctrl_chr);
|
---|
| 1242 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1243 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1244 | }
|
---|
| 1245 | pA = strrchr(temp_fname, '/');
|
---|
| 1246 | if (pA) {
|
---|
| 1247 | pA++;
|
---|
| 1248 | } else {
|
---|
| 1249 | pA = temp_fname;
|
---|
| 1250 | }
|
---|
| 1251 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1252 | if (pB) {
|
---|
| 1253 | pB++;
|
---|
| 1254 | } else {
|
---|
| 1255 | pB = the_file_I_was_reading;
|
---|
| 1256 | }
|
---|
| 1257 | }
|
---|
[1107] | 1258 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
[128] | 1259 | the_file_I_was_reading);
|
---|
[1080] | 1260 | mr_free(temp_fname);
|
---|
| 1261 | mr_free(datablock);
|
---|
[128] | 1262 | return (0);
|
---|
[1] | 1263 | }
|
---|
| 1264 |
|
---|
| 1265 |
|
---|
| 1266 | /**
|
---|
| 1267 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1268 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1269 | * @return 0 for success, nonzero for failure.
|
---|
| 1270 | */
|
---|
[128] | 1271 | int start_to_read_from_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1272 | {
|
---|
[128] | 1273 | /*@ int ********************************************************* */
|
---|
| 1274 | int res = 0;
|
---|
| 1275 | char *sz_msg;
|
---|
| 1276 | int ctrlchr;
|
---|
| 1277 | long long temp_size;
|
---|
| 1278 | malloc_string(sz_msg);
|
---|
| 1279 | /*@ end vars *************************************************** */
|
---|
[1] | 1280 |
|
---|
[128] | 1281 | paranoid_pclose(g_tape_stream);
|
---|
| 1282 | system("sync");
|
---|
| 1283 | system("sync");
|
---|
| 1284 | system("sync");
|
---|
| 1285 | log_it("Next tape requested.");
|
---|
| 1286 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1287 | log_it("Opening IN the next tape");
|
---|
| 1288 | if (!
|
---|
| 1289 | (g_tape_stream =
|
---|
| 1290 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1291 | bkpinfo->internal_tape_block_size))) {
|
---|
| 1292 | log_OS_error(g_tape_fifo);
|
---|
[541] | 1293 | log_to_screen("Cannot openin stream device");
|
---|
[128] | 1294 | return (1);
|
---|
| 1295 | }
|
---|
| 1296 | g_tape_posK = 0;
|
---|
| 1297 | g_sigpipe = FALSE;
|
---|
| 1298 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1299 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1300 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1301 | }
|
---|
| 1302 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1303 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1304 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1305 | } else {
|
---|
[1107] | 1306 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
[128] | 1307 | }
|
---|
[1080] | 1308 | mr_free(sz_msg);
|
---|
[128] | 1309 | return (res);
|
---|
[1] | 1310 | }
|
---|
| 1311 |
|
---|
| 1312 |
|
---|
| 1313 |
|
---|
| 1314 | /**
|
---|
| 1315 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1316 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1317 | * @return 0 for success, nonzero for failure.
|
---|
| 1318 | */
|
---|
[128] | 1319 | int start_to_write_to_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1320 | {
|
---|
[128] | 1321 | int res = 0;
|
---|
| 1322 | char command[MAX_STR_LEN * 2];
|
---|
| 1323 | paranoid_pclose(g_tape_stream);
|
---|
| 1324 | system("sync");
|
---|
| 1325 | system("sync");
|
---|
| 1326 | system("sync");
|
---|
| 1327 | log_it("New tape requested.");
|
---|
| 1328 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1329 | if (g_current_media_number > MAX_NOOF_MEDIA) {
|
---|
| 1330 | res++;
|
---|
[541] | 1331 | log_to_screen("Too many tapes. Man, you need to use nfs!");
|
---|
[1] | 1332 | }
|
---|
[128] | 1333 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
| 1334 | sprintf(command,
|
---|
| 1335 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 1336 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
| 1337 | MONDO_LOGFILE);
|
---|
| 1338 | log_it("Opening OUT to next CD with the command");
|
---|
| 1339 | log_it(command);
|
---|
| 1340 | log_it("Let's see what happens, shall we?");
|
---|
| 1341 | g_tape_stream = popen(command, "w");
|
---|
| 1342 | if (!g_tape_stream) {
|
---|
[541] | 1343 | log_to_screen("Failed to openout to cdstream (fifo)");
|
---|
[128] | 1344 | return (1);
|
---|
| 1345 | }
|
---|
| 1346 | } else {
|
---|
| 1347 | log_it("Opening OUT to next tape");
|
---|
| 1348 | if (!
|
---|
| 1349 | (g_tape_stream =
|
---|
| 1350 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1351 | bkpinfo->internal_tape_block_size))) {
|
---|
| 1352 | log_OS_error(g_tape_fifo);
|
---|
[541] | 1353 | log_to_screen("Cannot openin stream device");
|
---|
[128] | 1354 | return (1);
|
---|
| 1355 | }
|
---|
[1] | 1356 | }
|
---|
[128] | 1357 | g_tape_posK = 0;
|
---|
| 1358 | g_sigpipe = FALSE;
|
---|
[684] | 1359 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1360 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[128] | 1361 | return (res);
|
---|
[1] | 1362 | }
|
---|
| 1363 |
|
---|
| 1364 |
|
---|
| 1365 |
|
---|
| 1366 |
|
---|
| 1367 | /**
|
---|
| 1368 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1369 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1370 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1371 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1372 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1373 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1374 | * the old one. This insures that all archives will be on at least
|
---|
| 1375 | * one tape. Sounds inelegant, but it works.
|
---|
| 1376 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1377 | * @return 0 for success, nonzero for failure.
|
---|
| 1378 | */
|
---|
[128] | 1379 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1380 | {
|
---|
[128] | 1381 | int i, last, res = 0;
|
---|
| 1382 | char *fname;
|
---|
[1] | 1383 |
|
---|
[1107] | 1384 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
[128] | 1385 | malloc_string(fname);
|
---|
| 1386 | last = g_tapecatalog->entries - 1;
|
---|
| 1387 | for (i = 0; i <= last; i++) {
|
---|
| 1388 | sprintf(fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir,
|
---|
| 1389 | g_tapecatalog->el[i].fname);
|
---|
| 1390 | if (!does_file_exist(fname)) {
|
---|
[1107] | 1391 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
[128] | 1392 | } else {
|
---|
| 1393 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1394 | "start-backcatalog-afio-or-slice",
|
---|
| 1395 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
[1107] | 1396 | mr_msg(2, "Writing %s", fname);
|
---|
[128] | 1397 | if (write_file_to_stream_from_file(bkpinfo, fname)) {
|
---|
| 1398 | res++;
|
---|
[1107] | 1399 | mr_msg(2, "%s failed", fname);
|
---|
[128] | 1400 | }
|
---|
| 1401 | if (i != last) {
|
---|
[684] | 1402 | write_header_block_to_stream((off_t)0,
|
---|
[128] | 1403 | "stop-backcatalog-afio-or-slice",
|
---|
| 1404 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1405 | }
|
---|
| 1406 | }
|
---|
| 1407 | }
|
---|
[1080] | 1408 | mr_free(fname);
|
---|
[1107] | 1409 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
[128] | 1410 | return (res);
|
---|
[1] | 1411 | }
|
---|
| 1412 |
|
---|
| 1413 |
|
---|
| 1414 |
|
---|
| 1415 | /**
|
---|
| 1416 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1417 | * @param fname The path to all.tar.gz.
|
---|
| 1418 | * @return 0 for success, nonzero for failure.
|
---|
| 1419 | */
|
---|
[128] | 1420 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1421 | {
|
---|
[128] | 1422 | /*@ pointers *************************************************** */
|
---|
| 1423 | FILE *fin;
|
---|
| 1424 | char tmp[MAX_STR_LEN];
|
---|
[1] | 1425 |
|
---|
[128] | 1426 | /*@ long ******************************************************* */
|
---|
| 1427 | long m = -1;
|
---|
| 1428 | long templong;
|
---|
[1] | 1429 |
|
---|
[128] | 1430 | /*@ int ******************************************************** */
|
---|
| 1431 | int i, j;
|
---|
[1] | 1432 |
|
---|
[128] | 1433 | /*@ buffers **************************************************** */
|
---|
| 1434 | char tempblock[256 * 1024];
|
---|
[1] | 1435 |
|
---|
[128] | 1436 | /*@ end vars *************************************************** */
|
---|
[1] | 1437 |
|
---|
[541] | 1438 | open_evalcall_form("Writing data disks to tape");
|
---|
| 1439 | log_to_screen("Writing data disks to tape");
|
---|
[128] | 1440 | log_it("Data disks = %s", fname);
|
---|
| 1441 | if (!does_file_exist(fname)) {
|
---|
[541] | 1442 | sprintf(tmp, "Cannot find %s", fname);
|
---|
[128] | 1443 | log_to_screen(tmp);
|
---|
| 1444 | return (1);
|
---|
[1] | 1445 | }
|
---|
[128] | 1446 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1447 | log_OS_error(fname);
|
---|
| 1448 | fatal_error("Cannot openin the data disk");
|
---|
| 1449 | }
|
---|
| 1450 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1451 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1452 | if (!feof(fin)) {
|
---|
| 1453 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1454 | } else {
|
---|
| 1455 | m = 0;
|
---|
| 1456 | }
|
---|
| 1457 | for (; m < 256 * 1024; m++) {
|
---|
| 1458 | tempblock[m] = '\0';
|
---|
| 1459 | }
|
---|
| 1460 | g_tape_posK +=
|
---|
| 1461 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1462 | }
|
---|
| 1463 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1464 | {
|
---|
| 1465 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1466 | update_evalcall_form((int) (templong));
|
---|
| 1467 | }
|
---|
| 1468 | }
|
---|
| 1469 | paranoid_fclose(fin);
|
---|
| 1470 | close_evalcall_form();
|
---|
| 1471 | return (0);
|
---|
[1] | 1472 | }
|
---|
| 1473 |
|
---|
| 1474 |
|
---|
| 1475 |
|
---|
| 1476 |
|
---|
| 1477 | /**
|
---|
| 1478 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1479 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1480 | * @param infile The file to write to the stream.
|
---|
| 1481 | * @return 0 for success, nonzero for failure.
|
---|
| 1482 | */
|
---|
[128] | 1483 | int write_file_to_stream_from_file(struct s_bkpinfo *bkpinfo, char *infile)
|
---|
[1] | 1484 | {
|
---|
[128] | 1485 | /*@ buffers **************************************************** */
|
---|
| 1486 | char tmp[MAX_STR_LEN];
|
---|
| 1487 | char datablock[TAPE_BLOCK_SIZE];
|
---|
| 1488 | char checksum[MAX_STR_LEN];
|
---|
| 1489 | char *infile_basename;
|
---|
[1] | 1490 |
|
---|
[128] | 1491 | /*@ int ******************************************************** */
|
---|
| 1492 | int retval = 0;
|
---|
| 1493 | int noof_blocks;
|
---|
[1] | 1494 |
|
---|
[128] | 1495 | /* unsigned int ch; */
|
---|
| 1496 | unsigned int crc16;
|
---|
| 1497 | unsigned int crctt;
|
---|
[1] | 1498 |
|
---|
[128] | 1499 | /*@ pointers *************************************************** */
|
---|
| 1500 | FILE *fin;
|
---|
| 1501 | char *p;
|
---|
[1] | 1502 |
|
---|
[128] | 1503 | /*@ long ******************************************************* */
|
---|
| 1504 | long bytes_to_read = 0;
|
---|
| 1505 | long i;
|
---|
[1] | 1506 |
|
---|
[684] | 1507 | off_t filesize;
|
---|
[1] | 1508 |
|
---|
| 1509 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1510 | int ch;
|
---|
[1] | 1511 | #endif
|
---|
| 1512 |
|
---|
[128] | 1513 | /*@ initialize ************************************************ */
|
---|
| 1514 | crc16 = 0;
|
---|
| 1515 | crctt = 0;
|
---|
[1] | 1516 |
|
---|
| 1517 |
|
---|
| 1518 |
|
---|
[128] | 1519 | /*@ end vars *************************************************** */
|
---|
[1] | 1520 |
|
---|
[128] | 1521 | infile_basename = strrchr(infile, '/');
|
---|
| 1522 | if (infile_basename) {
|
---|
| 1523 | infile_basename++;
|
---|
| 1524 | } else {
|
---|
| 1525 | infile_basename = infile;
|
---|
| 1526 | }
|
---|
| 1527 | filesize = length_of_file(infile);
|
---|
| 1528 | if (should_we_write_to_next_tape
|
---|
| 1529 | (bkpinfo->media_size[g_current_media_number], filesize)) {
|
---|
| 1530 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1531 | write_backcatalog_to_tape(bkpinfo);
|
---|
| 1532 | }
|
---|
| 1533 | p = strrchr(infile, '/');
|
---|
| 1534 | if (!p) {
|
---|
| 1535 | p = infile;
|
---|
| 1536 | } else {
|
---|
| 1537 | p++;
|
---|
| 1538 | }
|
---|
| 1539 | sprintf(tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
| 1540 | (long) filesize >> 10);
|
---|
| 1541 | log_it(tmp);
|
---|
| 1542 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1543 | BLK_START_FILE);
|
---|
[1] | 1544 | //go_here_to_restart_saving_of_file:
|
---|
[128] | 1545 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1546 | log_OS_error(infile);
|
---|
| 1547 | return (1);
|
---|
[1] | 1548 | }
|
---|
[128] | 1549 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1550 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
| 1551 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
| 1552 | bytes_to_read = (long) filesize;
|
---|
| 1553 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
| 1554 | datablock[i] = '\0';
|
---|
| 1555 | }
|
---|
| 1556 | } else {
|
---|
| 1557 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 1558 | }
|
---|
| 1559 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
| 1560 | g_tape_posK +=
|
---|
| 1561 | fwrite(datablock, 1, /*bytes_to_read */
|
---|
| 1562 | (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1563 | g_tape_stream) / 1024;
|
---|
| 1564 | if (g_sigpipe) {
|
---|
| 1565 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1566 | fclose(fin);
|
---|
| 1567 | g_sigpipe = FALSE;
|
---|
| 1568 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1569 | write_backcatalog_to_tape(bkpinfo); // kinda-sorta recursive :)
|
---|
| 1570 | return (0);
|
---|
| 1571 | }
|
---|
[1] | 1572 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1573 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1574 | ch = datablock[i];
|
---|
| 1575 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1576 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1577 | }
|
---|
[1] | 1578 | #endif
|
---|
[128] | 1579 | }
|
---|
| 1580 | paranoid_fclose(fin);
|
---|
| 1581 | sprintf(checksum, "%04x%04x", crc16, crctt);
|
---|
[684] | 1582 | /* BERLIOS: what does it do ??? */
|
---|
| 1583 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[128] | 1584 | BLK_STOP_FILE);
|
---|
[1] | 1585 | // log_it("File '%s' written to tape.", infile);
|
---|
[128] | 1586 | return (retval);
|
---|
[1] | 1587 | }
|
---|
| 1588 |
|
---|
| 1589 |
|
---|
| 1590 |
|
---|
| 1591 |
|
---|
| 1592 |
|
---|
| 1593 | /**
|
---|
| 1594 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1595 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1596 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1597 | * be the length of the file that will follow.
|
---|
| 1598 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1599 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1600 | * if the file that will follow.
|
---|
| 1601 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1602 | * @return 0 for success, nonzero for failure.
|
---|
| 1603 | */
|
---|
| 1604 | int
|
---|
[684] | 1605 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[128] | 1606 | char *filename, int control_char)
|
---|
[1] | 1607 | {
|
---|
[128] | 1608 | /*@ buffers **************************************************** */
|
---|
| 1609 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
| 1610 | char tmp[MAX_STR_LEN];
|
---|
| 1611 | char *p;
|
---|
[1] | 1612 |
|
---|
[128] | 1613 | /*@ int ******************************************************** */
|
---|
| 1614 | int i;
|
---|
[1] | 1615 |
|
---|
[684] | 1616 | off_t olen;
|
---|
[1] | 1617 |
|
---|
[128] | 1618 | /*@ end vars *************************************************** */
|
---|
[1] | 1619 |
|
---|
| 1620 |
|
---|
[128] | 1621 | olen = length_of_incoming_file;
|
---|
| 1622 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1623 | if (!p) {
|
---|
| 1624 | p = filename;
|
---|
| 1625 | } else {
|
---|
| 1626 | p++;
|
---|
| 1627 | }
|
---|
| 1628 | if (!g_tape_stream) {
|
---|
| 1629 | log_to_screen
|
---|
[541] | 1630 | ("You're not backing up to tape. Why write a tape header?");
|
---|
[128] | 1631 | return (1);
|
---|
| 1632 | }
|
---|
| 1633 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1634 | tempblock[i] = 0;
|
---|
| 1635 | }
|
---|
| 1636 | sprintf(tempblock + 6000 + control_char, "Mondolicious, baby");
|
---|
| 1637 | tempblock[7000] = control_char;
|
---|
[1] | 1638 | /* for(i=0;i<8;i++) {tempblock[7001+i]=olen&0xff; olen>>=8;} */
|
---|
[684] | 1639 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[1] | 1640 | /* if (length_of_incoming_file) {memcpy(tempblock+7001,(char*)&length_of_incoming_file,sizeof(long long));} */
|
---|
[128] | 1641 | strcpy(tempblock + 1000, filename);
|
---|
[1] | 1642 | /* strcpy(tempblock+5555,cksum); */
|
---|
[128] | 1643 | g_tape_posK +=
|
---|
| 1644 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1645 | g_tape_stream) / 1024;
|
---|
| 1646 | sprintf(tmp, "%s (fname=%s, size=%ld K)",
|
---|
| 1647 | marker_to_string(control_char), p,
|
---|
| 1648 | (long) length_of_incoming_file >> 10);
|
---|
[1107] | 1649 | mr_msg(6, tmp);
|
---|
[1] | 1650 | /* log_tape_pos(); */
|
---|
[128] | 1651 | return (0);
|
---|
[1] | 1652 | }
|
---|
| 1653 |
|
---|
| 1654 |
|
---|
| 1655 |
|
---|
| 1656 |
|
---|
| 1657 |
|
---|
| 1658 |
|
---|
| 1659 |
|
---|
| 1660 |
|
---|
| 1661 |
|
---|
| 1662 |
|
---|
| 1663 | /**
|
---|
| 1664 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1665 | * @param should_be What we were expecting.
|
---|
| 1666 | * @param it_is What we got.
|
---|
| 1667 | */
|
---|
[128] | 1668 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1669 | {
|
---|
[128] | 1670 | /*@ buffer ***************************************************** */
|
---|
| 1671 | char tmp[MAX_STR_LEN];
|
---|
[1] | 1672 |
|
---|
| 1673 |
|
---|
[128] | 1674 | /*@ end vars *************************************************** */
|
---|
[541] | 1675 | sprintf(tmp, "Wrong marker! (Should be %s, ",
|
---|
[128] | 1676 | marker_to_string(should_be));
|
---|
[541] | 1677 | sprintf(tmp + strlen(tmp), "is actually %s)", marker_to_string(it_is));
|
---|
[128] | 1678 | log_to_screen(tmp);
|
---|
[1] | 1679 | }
|
---|
| 1680 |
|
---|
| 1681 | /* @} - end of streamGroup */
|
---|