[1174] | 1 | /* $Id: libmondo-stream.c 1939 2008-05-16 23:29:54Z bruno $
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[1] | 2 |
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| 3 | ...tools for talking to tapes, Monitas streams, etc.
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| 4 | */
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| 5 |
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[1174] | 6 | /*
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| 7 | *
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[1] | 8 | * @file
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| 9 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
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| 10 | */
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| 11 |
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[1174] | 12 | #include <unistd.h>
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| 13 |
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[1] | 14 | #include "my-stuff.h"
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[1080] | 15 | #include "mr_mem.h"
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[1123] | 16 | #include "mr_msg.h"
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[1369] | 17 | #include "mr_list.h"
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[1548] | 18 | #include "mr_gettext.h"
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[1638] | 19 | #include "mr_conf.h"
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[1174] | 20 |
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[1] | 21 | #include "mondostructures.h"
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| 22 | #include "libmondo-devices.h"
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| 23 | #include "libmondo-stream.h"
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| 24 | #include "libmondo-string-EXT.h"
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| 25 | #include "libmondo-files-EXT.h"
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[1174] | 26 | #include "newt-specific-EXT.h"
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[1] | 27 | #include "libmondo-fork-EXT.h"
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| 28 | #include "libmondo-tools-EXT.h"
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| 29 | #include "libmondo-fifo-EXT.h"
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| 30 |
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| 31 | #define EXTRA_TAPE_CHECKSUMS
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[1939] | 32 | #define STR_HEADER "Mondolicious, baby"
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[1] | 33 |
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| 34 | /*@unused@*/
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[128] | 35 | //static char cvsid[] = "$Id: libmondo-stream.c 1939 2008-05-16 23:29:54Z bruno $";
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[1] | 36 | extern bool g_sigpipe;
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| 37 | extern int g_tape_buffer_size_MB;
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| 38 |
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[948] | 39 | extern char *g_getfacl;
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| 40 | extern char *g_getfattr;
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[1362] | 41 | extern char *MONDO_LOGFILE;
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[948] | 42 |
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[1639] | 43 | extern struct mr_ar_conf *mr_conf;
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[1638] | 44 |
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[1663] | 45 | /* Reference to global bkpinfo */
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| 46 | extern struct s_bkpinfo *bkpinfo;
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| 47 |
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[1] | 48 | /**
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| 49 | * @addtogroup globalGroup
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| 50 | * @{
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| 51 | */
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| 52 | /**
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| 53 | * The file pointer for the opened tape/CD stream.
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| 54 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 55 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 56 | * closeout_tape(), and closeout_cdstream().
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| 57 | */
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| 58 | FILE *g_tape_stream = NULL;
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| 59 |
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| 60 |
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| 61 | /**
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| 62 | * The position (in kilobytes) where we are on the tape.
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| 63 | */
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| 64 | long long g_tape_posK = 0;
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| 65 |
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| 66 | /**
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| 67 | * The current media number we're using. This value is 1-based.
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| 68 | */
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[128] | 69 | int g_current_media_number = -1;
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[1] | 70 |
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| 71 | /**
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[1362] | 72 | * An entry in the tape catalog.
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[1] | 73 | */
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[1362] | 74 | struct s_tapecat_entry {
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| 75 | /**
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| 76 | * The type of archive it is (afioball, slice, or something else).
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| 77 | */
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| 78 | t_archtype type;
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[1] | 79 |
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[1362] | 80 | /**
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| 81 | * The filelist number or biggiefile (not slice!) number.
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| 82 | */
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| 83 | int number;
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[1] | 84 |
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[1362] | 85 | /**
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| 86 | * The slice number if it's a biggiefile.
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| 87 | */
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| 88 | long aux;
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[1] | 89 |
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[1362] | 90 | /**
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| 91 | * The tape position at the point this entry was added.
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| 92 | */
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| 93 | long long tape_posK;
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[1] | 94 |
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[1362] | 95 | /**
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| 96 | * The filename of the file cataloged here.
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| 97 | */
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| 98 | char *fname;
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| 99 | };
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[1] | 100 |
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| 101 |
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[1362] | 102 | /*
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| 103 | * The tape catalog that keeps track of files written to tape.
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| 104 | * made of a list of @p s_tapecat_entry.
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| 105 | * */
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[1369] | 106 | static struct mr_list *tapecatalog;
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[1] | 107 |
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[1362] | 108 | /* function to free the fname field allocated in te */
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| 109 | static void mr_free_te(void *data) {
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| 110 |
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| 111 | struct s_tapecat_entry *te = NULL;
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| 112 |
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| 113 | te = (struct s_tapecat_entry *)data;
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| 114 | mr_free(te->fname);
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| 115 | }
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| 116 |
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| 117 | /* @} - end of globalGroup */
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| 118 |
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| 119 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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| 120 |
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| 121 |
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[1] | 122 | /**
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| 123 | * @addtogroup streamGroup
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| 124 | * @{
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| 125 | */
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| 126 | /**
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| 127 | * Close the global output file descriptor which Mondo has used to read
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| 128 | * from the CD stream.
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| 129 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 130 | * @return 0 for success, nonzero for failure.
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| 131 | * @note This should be called by restore processes only.
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| 132 | */
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[1663] | 133 | int closein_cdstream()
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[1] | 134 | {
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[1663] | 135 | return (closein_tape());
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[1] | 136 | }
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| 137 |
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| 138 |
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| 139 | /**
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| 140 | * Close the global output file descriptor which Mondo has used to read
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| 141 | * from buffer or dd, which read from the tape.
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| 142 | * @param bkpinfo The backup information structure. Unused.
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| 143 | * @return 0 for success, nonzero for failure.
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| 144 | * @note This should be called by restore processes only.
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| 145 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 146 | * @bug @p bkpinfo parameter is unused.
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| 147 | */
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[1663] | 148 | int closein_tape()
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[1] | 149 | {
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[128] | 150 | /*@ int's ******************************************************* */
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| 151 | int retval = 0;
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| 152 | int res = 0;
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| 153 | int ctrl_chr = '\0';
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[1] | 154 |
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[128] | 155 | /*@ buffers ***************************************************** */
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| 156 | char fname[MAX_STR_LEN];
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[1] | 157 |
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[128] | 158 | /*@ long long's ************************************************* */
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| 159 | long long size;
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| 160 | char *blk;
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| 161 | int i;
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[1] | 162 |
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[1080] | 163 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 164 |
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[128] | 165 | log_it("closein_tape() -- entering");
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| 166 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 167 | retval += res;
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| 168 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 169 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 170 | }
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| 171 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 172 | retval += res;
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| 173 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 174 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 175 | }
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| 176 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 177 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 178 | }
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| 179 | sleep(1);
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[1175] | 180 | sync();
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[128] | 181 | sleep(1);
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| 182 | paranoid_pclose(g_tape_stream);
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| 183 | log_it("closein_tape() -- leaving");
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| 184 | if (!bkpinfo->please_dont_eject) {
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| 185 | eject_device(bkpinfo->media_device);
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| 186 | }
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[1080] | 187 | mr_free(blk);
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[1369] | 188 | mr_list_free(tapecatalog);
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[128] | 189 | return (retval);
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[1] | 190 | }
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| 191 |
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| 192 |
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| 193 |
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| 194 | /**
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| 195 | * Close the global output file descriptor which Mondo has been using to write
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| 196 | * to the tape device (via buffer or dd).
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| 197 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 198 | * @return 0 for success, nonzero for failure.
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| 199 | * @note This should be called by backup processes only.
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| 200 | */
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[1663] | 201 | int closeout_tape()
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[1] | 202 | {
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[128] | 203 | /*@ int's ******************************************************* */
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| 204 | int retval = 0;
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[1] | 205 |
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[128] | 206 | /*@ long long's ************************************************* */
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[1175] | 207 | int i = 0;
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| 208 | char *blk = NULL;
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[1362] | 209 | struct mr_list_elt *elt = NULL;
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| 210 | struct s_tapecat_entry *te = NULL;
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[1] | 211 |
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[1080] | 212 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 213 |
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[128] | 214 | sleep(1);
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[1175] | 215 | sync();
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[128] | 216 | sleep(1);
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| 217 | log_it("closeout_tape() -- entering");
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| 218 | retval +=
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[684] | 219 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[128] | 220 | BLK_END_OF_BACKUP);
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[684] | 221 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[1175] | 222 | /* write 1MB of crap */
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[128] | 223 | for (i = 0; i < 256 * 1024; i++) {
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| 224 | blk[i] = (int) (random() & 0xFF);
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| 225 | }
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| 226 | for (i = 0; i < 4 * 8; i++) {
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| 227 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 228 | if (should_we_write_to_next_tape
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[1365] | 229 | (bkpinfo->media_size, (off_t)256 * 1024)) {
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[1663] | 230 | start_to_write_to_next_tape();
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[128] | 231 | }
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| 232 | }
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| 233 | sleep(2);
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| 234 | paranoid_pclose(g_tape_stream);
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| 235 | log_it("closeout_tape() -- leaving");
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[1369] | 236 | elt = tapecatalog->first;
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[1362] | 237 | while (elt != NULL) {
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| 238 | te = (struct s_tapecat_entry *)elt->data;
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[128] | 239 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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[1362] | 240 | (te->type == fileset) ? "fileset" : "bigslice",
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| 241 | te->number, te->aux, te->tape_posK);
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| 242 | i++;
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| 243 | elt = elt->next;
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[128] | 244 | }
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[1080] | 245 | mr_free(blk);
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[1369] | 246 | mr_list_free(tapecatalog);
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[128] | 247 | return (retval);
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[1] | 248 | }
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| 249 |
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| 250 |
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| 251 |
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[128] | 252 | bool mt_says_tape_exists(char *dev)
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[1] | 253 | {
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[128] | 254 | char *command;
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| 255 | int res;
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[1] | 256 |
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[1175] | 257 | mr_asprintf(&command, "mt -f %s status", dev);
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[128] | 258 | res = run_program_and_log_output(command, 1);
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[1080] | 259 | mr_free(command);
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[128] | 260 | if (res) {
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| 261 | return (FALSE);
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| 262 | } else {
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| 263 | return (TRUE);
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| 264 | }
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[1] | 265 | }
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| 266 |
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| 267 |
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| 268 |
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| 269 | /**
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| 270 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 271 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 272 | * @param dev Where to put the found tape device.
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| 273 | * @param siz Where to put the tape size (a string like "4GB")
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| 274 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 275 | */
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[128] | 276 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 277 | {
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[128] | 278 | char tmp[MAX_STR_LEN];
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[1175] | 279 | char *command = NULL;
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[128] | 280 | char cdr_exe[MAX_STR_LEN];
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| 281 | int res;
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[1] | 282 |
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[1569] | 283 | strcpy(dev, VANILLA_SCSI_TAPE);
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[128] | 284 | log_to_screen("I am looking for your tape streamer. Please wait.");
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[1569] | 285 | log_it("I am looking for your tape streamer. Please wait.");
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| 286 | log_it("Taking %s as default",VANILLA_SCSI_TAPE);
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[128] | 287 | dev[0] = siz[0] = '\0';
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| 288 | if (find_home_of_exe("cdrecord")) {
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| 289 | strcpy(cdr_exe, "cdrecord");
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| 290 | } else {
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| 291 | strcpy(cdr_exe, "dvdrecord");
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[1] | 292 | }
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[1175] | 293 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[128] | 294 | cdr_exe);
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| 295 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 296 | mr_free(command);
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[128] | 297 | if (atoi(tmp) != 1) {
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[1569] | 298 | log_it("Either too few or too many tape streamers for me to detect...");
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[128] | 299 | return 1;
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| 300 | }
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[1175] | 301 | mr_asprintf(&command,
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[128] | 302 | "%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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| 303 | cdr_exe);
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| 304 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 305 | mr_free(command);
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[128] | 306 | if (strlen(tmp) < 2) {
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[1569] | 307 | log_it("Could not check tape device with %s",cdr_exe);
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[128] | 308 | return 1;
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| 309 | }
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[1175] | 310 | mr_asprintf(&command,
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[128] | 311 | "%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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| 312 | cdr_exe);
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| 313 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 314 | mr_free(command);
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| 315 |
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[128] | 316 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 317 | dev[strlen(dev) - 1] = '\0';
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[1574] | 318 | dev[strlen(dev) - 2] = '\0';
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[128] | 319 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
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| 320 | res = 0;
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| 321 | if (!mt_says_tape_exists(dev)) {
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| 322 | strcpy(dev, ALT_TAPE);
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| 323 | if (!mt_says_tape_exists(dev)) {
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| 324 | log_it("Cannot openin %s", dev);
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[1569] | 325 | strcpy(dev, "/dev/osst0");
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[128] | 326 | if (!mt_says_tape_exists(dev)) {
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[1574] | 327 | // Stay with VANILLA_SCSI_TAPE
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| 328 | strcpy(dev, VANILLA_SCSI_TAPE);
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[1569] | 329 | res++;
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| 330 | } else {
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| 331 | res = 0;
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[128] | 332 | }
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| 333 | }
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| 334 | }
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[1] | 335 |
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[128] | 336 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 337 |
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[1594] | 338 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'", cdr_exe);
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| 339 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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| 340 | mr_free(command);
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[1] | 341 |
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[128] | 342 | siz[0] = '\0';
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| 343 | log_it("res=%d; dev=%s", res, dev);
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[1] | 344 |
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[128] | 345 | if (res) {
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| 346 | return (res);
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| 347 | }
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[1] | 348 |
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[128] | 349 | if (strlen(tmp) < 2) {
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| 350 | siz[0] = '\0';
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| 351 | log_it("Warning - size of tape unknown");
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| 352 | return (0);
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| 353 | } else {
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| 354 | strcpy(siz, tmp);
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| 355 | return (0);
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| 356 | }
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[1] | 357 | }
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| 358 |
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| 359 |
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[1663] | 360 | int read_EXAT_files_from_tape(long long *ptmp_size, char *tmp_fname,
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[128] | 361 | int *pctrl_chr, char *xattr_fname,
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| 362 | char *acl_fname)
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[1] | 363 | {
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[128] | 364 | int res = 0;
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[955] | 365 | char *fname = (char *)&res; /* Should NOT be NULL */
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[128] | 366 |
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[1939] | 367 | // xattr
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[948] | 368 | if (g_getfattr) {
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[955] | 369 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 370 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 371 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 372 | }
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[955] | 373 | if (!strstr(fname, "xattr")) {
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[1939] | 374 | fatal_error("Wrong order for xattr, sunshine.");
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[948] | 375 | }
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[1663] | 376 | read_file_from_stream_to_file(xattr_fname, *ptmp_size);
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[948] | 377 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 378 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 379 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 380 | }
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[1107] | 381 | mr_msg(1, "Got xattr");
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[1939] | 382 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 383 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
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| 384 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 385 | }
|
---|
| 386 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 387 | if (pctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 388 | log_msg(1, "No acl attributes found, skipping to afio files");
|
---|
| 389 | return(0);
|
---|
| 390 | } else {
|
---|
| 391 | if (pctrl_chr != BLK_START_EXTENDED_ATTRIBUTES) {
|
---|
| 392 | wrong_marker(BLK_START_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 393 | }
|
---|
| 394 | }
|
---|
[128] | 395 | }
|
---|
[1175] | 396 | // acl
|
---|
[948] | 397 | if (g_getfacl) {
|
---|
[955] | 398 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
| 399 | if (!strstr(fname, "acl")) {
|
---|
[1939] | 400 | fatal_error("Wrong order for acl, sunshine.");
|
---|
[948] | 401 | }
|
---|
| 402 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 403 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 404 | }
|
---|
[1663] | 405 | read_file_from_stream_to_file(acl_fname, *ptmp_size);
|
---|
[948] | 406 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 407 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 408 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 409 | }
|
---|
| 410 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 411 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 412 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 413 | }
|
---|
[1107] | 414 | mr_msg(1, "Got acl");
|
---|
[128] | 415 | }
|
---|
[1175] | 416 | // tarball itself
|
---|
[128] | 417 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1939] | 418 | mr_msg(1, "End of extended attributes, now looking for afioball");
|
---|
| 419 | return (0);
|
---|
[1] | 420 | }
|
---|
| 421 |
|
---|
| 422 |
|
---|
[1663] | 423 | int write_EXAT_files_to_tape(char *xattr_fname,
|
---|
[128] | 424 | char *acl_fname)
|
---|
[1] | 425 | {
|
---|
[128] | 426 | int res = 0;
|
---|
[948] | 427 | if (g_getfattr) {
|
---|
[955] | 428 | // xattr
|
---|
[948] | 429 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 430 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 431 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 432 | BLK_START_EXAT_FILE);
|
---|
[1663] | 433 | write_file_to_stream_from_file(xattr_fname);
|
---|
[948] | 434 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
[1939] | 435 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 436 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
[948] | 437 | }
|
---|
| 438 | if (g_getfacl) {
|
---|
[955] | 439 | // acl
|
---|
[948] | 440 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[1939] | 441 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 442 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[948] | 443 | BLK_START_EXAT_FILE);
|
---|
[1663] | 444 | write_file_to_stream_from_file(acl_fname);
|
---|
[948] | 445 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
[1939] | 446 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[948] | 447 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 448 | }
|
---|
[128] | 449 | return (res);
|
---|
[1] | 450 | }
|
---|
| 451 |
|
---|
| 452 |
|
---|
| 453 |
|
---|
| 454 |
|
---|
| 455 | /**
|
---|
| 456 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 457 | * @param tapeno The tape number to insist on.
|
---|
| 458 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 459 | * inserted the right tape.
|
---|
| 460 | */
|
---|
| 461 | void insist_on_this_tape_number(int tapeno)
|
---|
| 462 | {
|
---|
[128] | 463 | int i;
|
---|
[1175] | 464 | char *tmp = NULL;
|
---|
[1] | 465 |
|
---|
[128] | 466 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 467 | if (g_current_media_number != tapeno) {
|
---|
| 468 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
[1175] | 469 | mr_asprintf(&tmp,
|
---|
| 470 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
| 471 | tapeno);
|
---|
[128] | 472 | popup_and_OK(tmp);
|
---|
[1175] | 473 | mr_free(tmp);
|
---|
| 474 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
[128] | 475 | } else {
|
---|
[1175] | 476 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
[128] | 477 | }
|
---|
[1] | 478 |
|
---|
[128] | 479 | for (i = 0; i <= 100; i += 2) {
|
---|
| 480 | usleep(100000);
|
---|
| 481 | update_evalcall_form(i);
|
---|
| 482 | }
|
---|
| 483 | close_evalcall_form();
|
---|
| 484 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 485 | g_current_media_number = tapeno;
|
---|
[1] | 486 |
|
---|
[128] | 487 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 488 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 489 | }
|
---|
| 490 |
|
---|
| 491 |
|
---|
| 492 | /**
|
---|
| 493 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 494 | */
|
---|
[128] | 495 | void log_tape_pos(void)
|
---|
[1] | 496 | {
|
---|
[128] | 497 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 498 | (long) g_tape_posK >> 10);
|
---|
[1] | 499 | }
|
---|
| 500 |
|
---|
| 501 |
|
---|
| 502 | /**
|
---|
| 503 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 504 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 505 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 506 | * otherwise we generate a fatal_error().
|
---|
| 507 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 508 | * @param latest_fname The file to place in the collection.
|
---|
| 509 | * @return 0, always.
|
---|
| 510 | * @bug Return value is redundant.
|
---|
| 511 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 512 | */
|
---|
| 513 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 514 | {
|
---|
[128] | 515 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 516 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
[1424] | 517 | int last = 0;
|
---|
| 518 | int i = 0;
|
---|
[128] | 519 | t_archtype type = other;
|
---|
[1175] | 520 | char *command = NULL;
|
---|
| 521 | char *tmpdir = NULL;
|
---|
| 522 | char *old_fname = NULL;
|
---|
[1362] | 523 | struct mr_list_elt *elt = NULL;
|
---|
| 524 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 525 |
|
---|
[128] | 526 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
| 527 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 528 | type = fileset;
|
---|
| 529 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 530 | type = biggieslice;
|
---|
| 531 | } else {
|
---|
| 532 | log_it("fname = %s", latest_fname);
|
---|
| 533 | fatal_error
|
---|
| 534 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 535 | }
|
---|
[1175] | 536 |
|
---|
| 537 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[128] | 538 | mkdir(tmpdir, 0x700);
|
---|
[1175] | 539 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[128] | 540 | if (run_program_and_log_output(command, 6)) {
|
---|
| 541 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 542 | latest_fname, tmpdir);
|
---|
| 543 | }
|
---|
[1175] | 544 | mr_free(command);
|
---|
| 545 |
|
---|
[1369] | 546 | last = mr_list_length(tapecatalog) - 1;
|
---|
[128] | 547 | if (last <= 0) {
|
---|
| 548 | iamhere("Too early to start deleting from collection.");
|
---|
| 549 | return (0);
|
---|
| 550 | }
|
---|
[1369] | 551 | elt = tapecatalog->last;
|
---|
[1362] | 552 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 553 | final_alleged_writeK = te->tape_posK;
|
---|
[128] | 554 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
[1362] | 555 | while (elt != NULL) {
|
---|
| 556 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 557 | cposK = te->tape_posK;
|
---|
[128] | 558 | if (cposK < final_projected_certain_writeK) {
|
---|
| 559 | final_actually_certain_writeK = cposK;
|
---|
| 560 | break;
|
---|
| 561 | }
|
---|
[1362] | 562 | elt = elt->prev;
|
---|
[128] | 563 | }
|
---|
[1362] | 564 | if (elt == NULL) {
|
---|
[128] | 565 | iamhere
|
---|
| 566 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 567 | return (0);
|
---|
| 568 | }
|
---|
[1] | 569 |
|
---|
[1362] | 570 | elt = elt->prev;
|
---|
| 571 | i = 0;
|
---|
| 572 | while ((elt != NULL) && (i < 10)) {
|
---|
| 573 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 574 | mr_asprintf(&old_fname, "%s/%s", tmpdir, te->fname);
|
---|
[128] | 575 | unlink(old_fname);
|
---|
[1175] | 576 | mr_free(old_fname);
|
---|
[1362] | 577 | elt = elt->prev;
|
---|
| 578 | i++;
|
---|
[128] | 579 | }
|
---|
[1175] | 580 | mr_free(tmpdir);
|
---|
[128] | 581 | return (0);
|
---|
[1] | 582 | }
|
---|
| 583 |
|
---|
| 584 |
|
---|
| 585 | /**
|
---|
| 586 | * Open the CD stream for input.
|
---|
| 587 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 588 | * @return 0 for success, nonzero for failure.
|
---|
| 589 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 590 | */
|
---|
[1663] | 591 | int openin_cdstream()
|
---|
[1] | 592 | {
|
---|
[1663] | 593 | return (openin_tape());
|
---|
[1] | 594 | }
|
---|
| 595 |
|
---|
| 596 |
|
---|
[128] | 597 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
| 598 | long internal_tape_block_size)
|
---|
[1] | 599 | {
|
---|
[128] | 600 | char *tmp;
|
---|
| 601 | int res;
|
---|
[1] | 602 |
|
---|
[128] | 603 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
[1107] | 604 | mr_msg(1,
|
---|
[128] | 605 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 606 | return (0);
|
---|
| 607 | }
|
---|
[1175] | 608 | mr_asprintf(&tmp, "mt -f %s setblk %ld", tapedev,
|
---|
| 609 | internal_tape_block_size);
|
---|
[128] | 610 | res = run_program_and_log_output(tmp, 3);
|
---|
[1080] | 611 | mr_free(tmp);
|
---|
[128] | 612 | return (res);
|
---|
[1] | 613 | }
|
---|
| 614 |
|
---|
| 615 |
|
---|
| 616 | /**
|
---|
| 617 | * Open the tape device for input.
|
---|
| 618 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 619 | * - @c bkpinfo->media_device
|
---|
| 620 | * - @c bkpinfo->tmpdir
|
---|
| 621 | * @return 0 for success, nonzero for failure.
|
---|
| 622 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 623 | */
|
---|
[1663] | 624 | int openin_tape()
|
---|
[1] | 625 | {
|
---|
[128] | 626 | /*@ buffer ***************************************************** */
|
---|
| 627 | char fname[MAX_STR_LEN];
|
---|
[1175] | 628 | char *datablock = NULL;
|
---|
| 629 | char *tmp = NULL;
|
---|
[128] | 630 | char old_cwd[MAX_STR_LEN];
|
---|
[1175] | 631 | char *outfname = NULL;
|
---|
[128] | 632 | /*@ int ******************************************************* */
|
---|
| 633 | int i;
|
---|
| 634 | int j;
|
---|
| 635 | int res;
|
---|
| 636 | long length, templong;
|
---|
| 637 | size_t k;
|
---|
| 638 | int retval = 0;
|
---|
| 639 | int ctrl_chr;
|
---|
[1] | 640 |
|
---|
[128] | 641 | /*@ long long ************************************************* */
|
---|
| 642 | long long size;
|
---|
[1] | 643 |
|
---|
[128] | 644 | /*@ pointers ************************************************** */
|
---|
| 645 | FILE *fout;
|
---|
[1] | 646 |
|
---|
[128] | 647 | /*@ end vars *************************************************** */
|
---|
[1] | 648 |
|
---|
[128] | 649 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
[1392] | 650 | tapecatalog = mr_list_alloc();
|
---|
[128] | 651 | g_tape_posK = 0;
|
---|
| 652 | if (g_tape_stream) {
|
---|
| 653 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 654 | return (0);
|
---|
| 655 | }
|
---|
| 656 | insist_on_this_tape_number(1);
|
---|
[1175] | 657 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[128] | 658 | make_hole_for_file(outfname);
|
---|
[1] | 659 |
|
---|
[128] | 660 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
| 661 | bkpinfo->internal_tape_block_size);
|
---|
[1] | 662 |
|
---|
[128] | 663 | log_it("Opening IN tape");
|
---|
| 664 | if (!
|
---|
| 665 | (g_tape_stream =
|
---|
| 666 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 667 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 668 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 669 | return (1);
|
---|
| 670 | }
|
---|
[1175] | 671 | log_to_screen(_("Reading stream"));
|
---|
[128] | 672 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1175] | 673 | /* skip data disks */
|
---|
[128] | 674 | open_evalcall_form("Skipping data disks on stream");
|
---|
[1175] | 675 | log_to_screen(_("Skipping data disks on stream"));
|
---|
[128] | 676 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 677 | log_OS_error(outfname);
|
---|
[1175] | 678 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
[128] | 679 | return (-1);
|
---|
[1] | 680 | }
|
---|
[1080] | 681 | datablock = (char *) mr_malloc(256 * 1024);
|
---|
[128] | 682 | for (i = 0; i < 32; i++) {
|
---|
| 683 | for (j = 0; j < 4; j++) {
|
---|
| 684 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 685 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 686 | g_tape_stream);
|
---|
| 687 | }
|
---|
| 688 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 689 | g_tape_posK += length / 1024;
|
---|
| 690 | }
|
---|
| 691 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 692 | {
|
---|
| 693 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 694 | update_evalcall_form((int) (templong));
|
---|
| 695 | }
|
---|
| 696 | }
|
---|
| 697 | paranoid_fclose(fout);
|
---|
[1080] | 698 | mr_free(datablock);
|
---|
[1175] | 699 | /* find initial blocks */
|
---|
[128] | 700 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 701 | retval += res;
|
---|
| 702 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 703 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 704 | }
|
---|
| 705 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 706 | retval += res;
|
---|
| 707 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 708 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 709 | }
|
---|
| 710 | close_evalcall_form();
|
---|
| 711 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 712 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 713 | chdir(bkpinfo->tmpdir);
|
---|
[1924] | 714 | mr_asprintf(&tmp, "tar -zxf %s ./tmp/mondo-restore.cfg 2> /dev/null",
|
---|
[1175] | 715 | outfname);
|
---|
[128] | 716 | paranoid_system(tmp);
|
---|
[1175] | 717 | mr_free(tmp);
|
---|
[128] | 718 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 719 | chdir(old_cwd);
|
---|
| 720 | unlink(outfname);
|
---|
[1175] | 721 | mr_free(outfname);
|
---|
[128] | 722 | return (retval);
|
---|
[1] | 723 | }
|
---|
| 724 |
|
---|
| 725 |
|
---|
| 726 | /**
|
---|
| 727 | * Start writing to a CD stream.
|
---|
| 728 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 729 | * @param speed The speed to write at.
|
---|
| 730 | * @return 0 for success, nonzero for failure.
|
---|
| 731 | * @note This should be called only from backup processes.
|
---|
| 732 | */
|
---|
[128] | 733 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 734 | {
|
---|
[128] | 735 | /*@ buffers ***************************************************** */
|
---|
[1175] | 736 | char *command = NULL;
|
---|
[1] | 737 |
|
---|
[128] | 738 | /*@ end vars *************************************************** */
|
---|
[1] | 739 |
|
---|
[1175] | 740 | /* add 'dummy' if testing */
|
---|
| 741 | mr_asprintf(&command,
|
---|
| 742 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 743 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
| 744 | /* initialise the catalog */
|
---|
[128] | 745 | g_current_media_number = 1;
|
---|
[1392] | 746 | tapecatalog = mr_list_alloc();
|
---|
[1175] | 747 | /* log stuff */
|
---|
[128] | 748 | log_it("Opening OUT cdstream with the command");
|
---|
| 749 | log_it(command);
|
---|
[1175] | 750 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[128] | 751 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 752 | mr_free(command);
|
---|
[128] | 753 | if (g_tape_stream) {
|
---|
| 754 | return (0);
|
---|
| 755 | } else {
|
---|
[1175] | 756 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 757 | return (1);
|
---|
| 758 | }
|
---|
[1] | 759 | }
|
---|
| 760 |
|
---|
[1175] | 761 |
|
---|
[1] | 762 | /**
|
---|
| 763 | * Start writing to a tape device for the backup.
|
---|
| 764 | * @param tapedev The tape device to open for writing.
|
---|
| 765 | * @return 0 for success, nonzero for failure.
|
---|
| 766 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 767 | * EXISTING DATA on the tape!
|
---|
| 768 | */
|
---|
[128] | 769 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
[1] | 770 | {
|
---|
[128] | 771 | g_current_media_number = 1;
|
---|
| 772 | if (g_tape_stream) {
|
---|
| 773 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 774 | return (0);
|
---|
| 775 | }
|
---|
[1392] | 776 | tapecatalog = mr_list_alloc();
|
---|
[128] | 777 | g_tape_posK = 0;
|
---|
| 778 |
|
---|
| 779 | set_tape_block_size_with_mt(tapedev, internal_tape_block_size);
|
---|
| 780 | log_it("Opening OUT tape");
|
---|
| 781 | if (!
|
---|
| 782 | (g_tape_stream =
|
---|
| 783 | open_device_via_buffer(tapedev, 'w', internal_tape_block_size))) {
|
---|
[1175] | 784 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 785 | return (1);
|
---|
| 786 | }
|
---|
| 787 | return (0);
|
---|
[1] | 788 | }
|
---|
| 789 |
|
---|
| 790 |
|
---|
| 791 | /**
|
---|
| 792 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 793 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 794 | * @param outfile The file to write to.
|
---|
| 795 | * @param size The size of the file in the input stream.
|
---|
| 796 | * @return 0 for success, nonzero for failure.
|
---|
| 797 | */
|
---|
| 798 | int
|
---|
[1663] | 799 | read_file_from_stream_to_file(char *outfile, long long size)
|
---|
[1] | 800 | {
|
---|
| 801 |
|
---|
[128] | 802 | /*@ int ******************************************************** */
|
---|
| 803 | int res;
|
---|
[1] | 804 |
|
---|
[128] | 805 | /*@ end vars *************************************************** */
|
---|
[1] | 806 |
|
---|
[1663] | 807 | res = read_file_from_stream_FULL(outfile, NULL, size);
|
---|
[1] | 808 |
|
---|
[128] | 809 | return (res);
|
---|
[1] | 810 | }
|
---|
| 811 |
|
---|
| 812 |
|
---|
| 813 | /**
|
---|
| 814 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 815 | * by @p fout.
|
---|
| 816 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 817 | * @param fout The stream to write the file to.
|
---|
| 818 | * @param size The size of the file in bytes.
|
---|
| 819 | * @return 0 for success, nonzero for failure.
|
---|
| 820 | */
|
---|
| 821 | int
|
---|
[1663] | 822 | read_file_from_stream_to_stream(FILE * fout, long long size)
|
---|
[1] | 823 | {
|
---|
| 824 |
|
---|
[128] | 825 | /*@ int ******************************************************** */
|
---|
| 826 | int res;
|
---|
[1] | 827 |
|
---|
[128] | 828 | /*@ end vars *************************************************** */
|
---|
[1] | 829 |
|
---|
[1663] | 830 | res = read_file_from_stream_FULL(NULL, fout, size);
|
---|
[128] | 831 | return (res);
|
---|
[1] | 832 | }
|
---|
| 833 |
|
---|
| 834 |
|
---|
| 835 | /**
|
---|
| 836 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 837 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 838 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 839 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 840 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 841 | * @param outfname If non-NULL, write to this file.
|
---|
| 842 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 843 | * @param orig_size The original length of the file in bytes.
|
---|
| 844 | * @return 0 for success, nonzero for failure.
|
---|
| 845 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 846 | */
|
---|
| 847 | int
|
---|
[1663] | 848 | read_file_from_stream_FULL(char *outfname, FILE * foutstream, long long orig_size)
|
---|
[1] | 849 | {
|
---|
[128] | 850 | /*@ buffers ***************************************************** */
|
---|
[1175] | 851 | char *tmp = NULL;
|
---|
| 852 | char *datablock = NULL;
|
---|
[128] | 853 | char *temp_fname;
|
---|
| 854 | char *temp_cksum;
|
---|
[1175] | 855 | char *actual_cksum = NULL;
|
---|
[1] | 856 |
|
---|
[128] | 857 | /*@ int ********************************************************* */
|
---|
| 858 | int retval = 0;
|
---|
[1] | 859 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 860 | int i, ch;
|
---|
[1] | 861 | #endif
|
---|
[128] | 862 | int noof_blocks;
|
---|
| 863 | int ctrl_chr;
|
---|
| 864 | int res;
|
---|
| 865 | /*@ pointers **************************************************** */
|
---|
| 866 | FILE *fout;
|
---|
[1] | 867 |
|
---|
[128] | 868 | /*@ long ***************************************************** */
|
---|
[1904] | 869 | long bytes_to_write = 0L;
|
---|
[1] | 870 |
|
---|
[128] | 871 | /*@ long long *************************************************** */
|
---|
| 872 | long long temp_size, size;
|
---|
| 873 | long bytes_read, bytes_to_read;
|
---|
| 874 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 875 | long long where_I_was_before_tape_change = 0;
|
---|
| 876 | /*@ unsigned int ************************************************ */
|
---|
| 877 | unsigned int crc16;
|
---|
| 878 | unsigned int crctt;
|
---|
[1] | 879 |
|
---|
[128] | 880 | bool had_to_resync = FALSE;
|
---|
[1] | 881 |
|
---|
[128] | 882 | /*@ init ******************************************************* */
|
---|
| 883 | malloc_string(temp_fname);
|
---|
| 884 | malloc_string(temp_cksum);
|
---|
[1638] | 885 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[128] | 886 | crc16 = 0;
|
---|
| 887 | crctt = 0;
|
---|
| 888 | size = orig_size;
|
---|
[1] | 889 |
|
---|
[128] | 890 | /*@ end vars *************************************************** */
|
---|
[1] | 891 |
|
---|
[128] | 892 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 893 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[1175] | 894 | mr_asprintf(&tmp,
|
---|
| 895 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 896 | (long) size >> 10, (long) temp_size >> 10);
|
---|
[128] | 897 | log_to_screen(tmp);
|
---|
[1175] | 898 | mr_free(tmp);
|
---|
[128] | 899 | }
|
---|
| 900 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 901 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 902 | return (1);
|
---|
| 903 | }
|
---|
[1903] | 904 | /* Not used
|
---|
[1175] | 905 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
| 906 | outfname, (long) size >> 10);
|
---|
[1903] | 907 | */
|
---|
[1] | 908 |
|
---|
[128] | 909 | if (foutstream) {
|
---|
| 910 | fout = foutstream;
|
---|
| 911 | } else {
|
---|
| 912 | fout = fopen(outfname, "w");
|
---|
[1] | 913 | }
|
---|
[128] | 914 | if (!fout) {
|
---|
| 915 | log_OS_error(outfname);
|
---|
[1175] | 916 | log_to_screen(_("Cannot openout file"));
|
---|
[128] | 917 | return (1);
|
---|
| 918 | }
|
---|
| 919 | total_read_from_tape_for_this_file = 0;
|
---|
| 920 | for (noof_blocks = 0; size > 0;
|
---|
| 921 | noof_blocks++, size -=
|
---|
| 922 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 923 | bytes_read) {
|
---|
| 924 | bytes_to_write =
|
---|
[1638] | 925 | (size < mr_conf->external_tape_blocksize) ? (long) size : mr_conf->external_tape_blocksize;
|
---|
| 926 | bytes_to_read = mr_conf->external_tape_blocksize;
|
---|
[128] | 927 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 928 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 929 | // crctt=crc16=0;
|
---|
| 930 | where_I_was_before_tape_change = size;
|
---|
[1107] | 931 | mr_msg(4, "where_I_was_... = %lld",
|
---|
[128] | 932 | where_I_was_before_tape_change);
|
---|
[1663] | 933 | start_to_read_from_next_tape();
|
---|
[1107] | 934 | mr_msg(4, "Started reading from next tape.");
|
---|
[128] | 935 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
[1107] | 936 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
[128] | 937 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 938 | size -= bytes_to_write) {
|
---|
| 939 | bytes_read =
|
---|
| 940 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 941 | }
|
---|
[1107] | 942 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
[128] | 943 | where_I_was_before_tape_change);
|
---|
| 944 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 945 | had_to_resync = TRUE;
|
---|
| 946 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 947 | }
|
---|
[1] | 948 |
|
---|
[128] | 949 | (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] | 950 |
|
---|
| 951 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 952 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 953 | ch = datablock[i];
|
---|
| 954 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 955 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 956 | }
|
---|
[1] | 957 | #endif
|
---|
[128] | 958 | }
|
---|
[1107] | 959 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
[128] | 960 | total_read_from_tape_for_this_file);
|
---|
[1107] | 961 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
[128] | 962 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[1175] | 963 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[128] | 964 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 965 | } else {
|
---|
| 966 | paranoid_fclose(fout);
|
---|
| 967 | }
|
---|
| 968 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 969 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 970 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 971 | // fatal_error("Bad marker"); // return(1);
|
---|
[128] | 972 | }
|
---|
| 973 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[1175] | 974 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
| 975 | temp_cksum);
|
---|
[128] | 976 | log_to_screen(tmp);
|
---|
[1175] | 977 | mr_free(tmp);
|
---|
| 978 |
|
---|
| 979 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
| 980 | (long) orig_size >> 10);
|
---|
[128] | 981 | log_to_screen(tmp);
|
---|
[1175] | 982 | mr_free(tmp);
|
---|
[128] | 983 | retval++;
|
---|
| 984 | }
|
---|
[1175] | 985 | mr_free(actual_cksum);
|
---|
[1080] | 986 | mr_free(datablock);
|
---|
| 987 | mr_free(temp_fname);
|
---|
| 988 | mr_free(temp_cksum);
|
---|
[128] | 989 | return (retval);
|
---|
[1] | 990 | }
|
---|
| 991 |
|
---|
| 992 |
|
---|
| 993 | /**
|
---|
| 994 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 995 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 996 | * the filename (if it's file-related), and the block type.
|
---|
| 997 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 998 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 999 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 1000 | * @return 0 for success, nonzero for failure.
|
---|
| 1001 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 1002 | */
|
---|
| 1003 | int
|
---|
[128] | 1004 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 1005 | int *pcontrol_char)
|
---|
[1] | 1006 | {
|
---|
| 1007 |
|
---|
[128] | 1008 | /*@ buffers ***************************************************** */
|
---|
| 1009 | char *tempblock;
|
---|
[1] | 1010 |
|
---|
[128] | 1011 | /*@ int ********************************************************* */
|
---|
| 1012 | int i, retval;
|
---|
[1] | 1013 |
|
---|
[128] | 1014 | /*@ end vars *************************************************** */
|
---|
[1] | 1015 |
|
---|
[1638] | 1016 | tempblock = (char *) mr_malloc((size_t) mr_conf->external_tape_blocksize);
|
---|
[1] | 1017 |
|
---|
[1638] | 1018 | for (i = 0; i < (int) mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1019 | tempblock[i] = 0;
|
---|
| 1020 | }
|
---|
| 1021 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1022 | g_tape_posK +=
|
---|
[1638] | 1023 | fread(tempblock, 1, (size_t) mr_conf->external_tape_blocksize,
|
---|
[128] | 1024 | g_tape_stream) / 1024;
|
---|
| 1025 | }
|
---|
| 1026 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
[1939] | 1027 | if (strcmp(tempblock + 6000 + *pcontrol_char, STR_HEADER)) {
|
---|
[128] | 1028 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1029 | }
|
---|
| 1030 | strcpy(filename, tempblock + 1000);
|
---|
| 1031 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1032 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1033 | retval = 1;
|
---|
| 1034 | } else {
|
---|
| 1035 | retval = 0;
|
---|
| 1036 | }
|
---|
| 1037 | for (i = 1000; i < 1020; i++) {
|
---|
| 1038 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1039 | tempblock[i] = ' ';
|
---|
| 1040 | }
|
---|
| 1041 | }
|
---|
| 1042 | tempblock[i] = '\0';
|
---|
[1107] | 1043 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1044 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1045 | (long) (*plen) >> 10);
|
---|
[1080] | 1046 | mr_free(tempblock);
|
---|
[128] | 1047 | return (retval);
|
---|
[1] | 1048 | }
|
---|
| 1049 |
|
---|
| 1050 |
|
---|
| 1051 | /**
|
---|
| 1052 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1053 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1054 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1055 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1056 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1057 | * @param number The fileset number or biggiefile number.
|
---|
| 1058 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1059 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1060 | * @return The index of the record we just added.
|
---|
| 1061 | */
|
---|
[128] | 1062 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1063 | char *fn)
|
---|
[1] | 1064 | {
|
---|
[1362] | 1065 | char *fname = NULL;
|
---|
| 1066 | char *p = NULL;
|
---|
| 1067 | struct s_tapecat_entry *te = NULL;
|
---|
| 1068 | struct mr_list_elt *elt = NULL;
|
---|
[1] | 1069 |
|
---|
[128] | 1070 | p = strrchr(fn, '/');
|
---|
| 1071 | if (p) {
|
---|
| 1072 | p++;
|
---|
| 1073 | } else {
|
---|
| 1074 | p = fn;
|
---|
| 1075 | }
|
---|
[1362] | 1076 | mr_asprintf(&fname, p);
|
---|
| 1077 |
|
---|
| 1078 | te = (struct s_tapecat_entry *)mr_malloc(sizeof(struct s_tapecat_entry));
|
---|
| 1079 | te->type = type;
|
---|
| 1080 | te->number = number;
|
---|
| 1081 | te->aux = aux;
|
---|
| 1082 | te->tape_posK = g_tape_posK;
|
---|
| 1083 | /* BERLIOS: Check if this is written womewhere, as it's only a pointer */
|
---|
| 1084 | /* BERLIOS: Verify to purge fname correctly */
|
---|
| 1085 | te->fname = fname;
|
---|
| 1086 |
|
---|
| 1087 | /* place the data in a list elt */
|
---|
[1392] | 1088 | elt = mr_list_alloc_elt((void *)te, mr_free_te);
|
---|
[1370] | 1089 | mr_list_add_elt_last(tapecatalog, elt);
|
---|
[1362] | 1090 |
|
---|
| 1091 | // returns the index of the record we've just added
|
---|
[1369] | 1092 | return (mr_list_length(tapecatalog));
|
---|
[1] | 1093 | }
|
---|
| 1094 |
|
---|
| 1095 |
|
---|
| 1096 | /**
|
---|
| 1097 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1098 | * (got SIGPIPE) or look like we will.
|
---|
| 1099 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1100 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1101 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1102 | * autodetecting the size. Huh?
|
---|
| 1103 | */
|
---|
[684] | 1104 |
|
---|
| 1105 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1106 | bool
|
---|
[128] | 1107 | should_we_write_to_next_tape(long mediasize,
|
---|
[684] | 1108 | off_t length_of_incoming_file)
|
---|
[1] | 1109 | {
|
---|
[128] | 1110 | /*@ bool's ***************************************************** */
|
---|
| 1111 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1112 |
|
---|
[128] | 1113 | /*@ end vars *************************************************** */
|
---|
[1] | 1114 |
|
---|
[128] | 1115 | if (mediasize == 0) {
|
---|
| 1116 | return (FALSE);
|
---|
| 1117 | }
|
---|
| 1118 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1119 | log_it("mediasize = %ld", mediasize);
|
---|
| 1120 | we_need_a_new_tape = TRUE;
|
---|
[1175] | 1121 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
[128] | 1122 | }
|
---|
| 1123 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
[1639] | 1124 | mediasize - 16) { /* 4096(old SLICE_SIZE) * 4 / 1024) */
|
---|
[128] | 1125 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1126 | mediasize);
|
---|
| 1127 | we_need_a_new_tape = TRUE;
|
---|
| 1128 | }
|
---|
| 1129 | return (we_need_a_new_tape);
|
---|
[1] | 1130 | }
|
---|
| 1131 |
|
---|
| 1132 |
|
---|
| 1133 | /**
|
---|
| 1134 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1135 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1136 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1137 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1138 | * @return 0 for success, nonzero for failure.
|
---|
| 1139 | */
|
---|
[128] | 1140 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1141 | *the_file_I_was_reading)
|
---|
[1] | 1142 | {
|
---|
[128] | 1143 | char *pA;
|
---|
| 1144 | char *pB;
|
---|
| 1145 | int res;
|
---|
| 1146 | int ctrl_chr;
|
---|
| 1147 | char *temp_fname;
|
---|
| 1148 | char *datablock;
|
---|
| 1149 | long long temp_size, size;
|
---|
| 1150 | long bytes_to_write;
|
---|
[1] | 1151 |
|
---|
[1638] | 1152 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[128] | 1153 | malloc_string(temp_fname);
|
---|
| 1154 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1155 | if (pB) {
|
---|
| 1156 | pB++;
|
---|
| 1157 | } else {
|
---|
| 1158 | pB = the_file_I_was_reading;
|
---|
[1] | 1159 | }
|
---|
[1107] | 1160 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1161 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
[128] | 1162 | ctrl_chr = -1;
|
---|
| 1163 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1164 | res =
|
---|
| 1165 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1166 | &ctrl_chr);
|
---|
| 1167 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1168 | break;
|
---|
| 1169 | }
|
---|
[1107] | 1170 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1171 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
[1107] | 1172 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1173 | }
|
---|
| 1174 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1175 | res =
|
---|
| 1176 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1177 | &ctrl_chr);
|
---|
| 1178 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1179 | break;
|
---|
| 1180 | }
|
---|
[1107] | 1181 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1182 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
[1107] | 1183 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1184 | }
|
---|
| 1185 | pA = strrchr(temp_fname, '/');
|
---|
| 1186 | if (pA) {
|
---|
| 1187 | pA++;
|
---|
| 1188 | } else {
|
---|
| 1189 | pA = temp_fname;
|
---|
| 1190 | }
|
---|
| 1191 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1192 | if (pB) {
|
---|
| 1193 | pB++;
|
---|
| 1194 | } else {
|
---|
| 1195 | pB = the_file_I_was_reading;
|
---|
| 1196 | }
|
---|
| 1197 | while (strcmp(pA, pB)) {
|
---|
[1107] | 1198 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
[128] | 1199 | the_file_I_was_reading);
|
---|
| 1200 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1201 | bytes_to_write =
|
---|
[1638] | 1202 | (size < mr_conf->external_tape_blocksize) ? (long) size : mr_conf->external_tape_blocksize;
|
---|
[128] | 1203 | // FIXME - needs error-checking and -catching
|
---|
[1638] | 1204 | fread(datablock, 1, (size_t) mr_conf->external_tape_blocksize, g_tape_stream);
|
---|
[128] | 1205 | }
|
---|
| 1206 | res =
|
---|
| 1207 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1208 | &ctrl_chr);
|
---|
| 1209 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1210 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1211 | }
|
---|
| 1212 | res =
|
---|
| 1213 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1214 | &ctrl_chr);
|
---|
| 1215 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1216 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1217 | }
|
---|
| 1218 | res =
|
---|
| 1219 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1220 | &ctrl_chr);
|
---|
| 1221 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1222 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1223 | }
|
---|
| 1224 | res =
|
---|
| 1225 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1226 | &ctrl_chr);
|
---|
| 1227 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1228 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1229 | }
|
---|
| 1230 | pA = strrchr(temp_fname, '/');
|
---|
| 1231 | if (pA) {
|
---|
| 1232 | pA++;
|
---|
| 1233 | } else {
|
---|
| 1234 | pA = temp_fname;
|
---|
| 1235 | }
|
---|
| 1236 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1237 | if (pB) {
|
---|
| 1238 | pB++;
|
---|
| 1239 | } else {
|
---|
| 1240 | pB = the_file_I_was_reading;
|
---|
| 1241 | }
|
---|
| 1242 | }
|
---|
[1107] | 1243 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
[128] | 1244 | the_file_I_was_reading);
|
---|
[1080] | 1245 | mr_free(temp_fname);
|
---|
| 1246 | mr_free(datablock);
|
---|
[128] | 1247 | return (0);
|
---|
[1] | 1248 | }
|
---|
| 1249 |
|
---|
| 1250 |
|
---|
| 1251 | /**
|
---|
| 1252 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1253 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1254 | * @return 0 for success, nonzero for failure.
|
---|
| 1255 | */
|
---|
[1663] | 1256 | int start_to_read_from_next_tape()
|
---|
[1] | 1257 | {
|
---|
[128] | 1258 | /*@ int ********************************************************* */
|
---|
| 1259 | int res = 0;
|
---|
| 1260 | char *sz_msg;
|
---|
| 1261 | int ctrlchr;
|
---|
| 1262 | long long temp_size;
|
---|
| 1263 | malloc_string(sz_msg);
|
---|
| 1264 | /*@ end vars *************************************************** */
|
---|
[1] | 1265 |
|
---|
[128] | 1266 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1267 | sync();
|
---|
| 1268 | sync();
|
---|
| 1269 | sync();
|
---|
[128] | 1270 | log_it("Next tape requested.");
|
---|
| 1271 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1272 | log_it("Opening IN the next tape");
|
---|
| 1273 | if (!
|
---|
| 1274 | (g_tape_stream =
|
---|
| 1275 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1276 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1277 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1278 | return (1);
|
---|
| 1279 | }
|
---|
| 1280 | g_tape_posK = 0;
|
---|
| 1281 | g_sigpipe = FALSE;
|
---|
| 1282 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1283 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1284 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1285 | }
|
---|
| 1286 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1287 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1288 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1289 | } else {
|
---|
[1107] | 1290 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
[128] | 1291 | }
|
---|
[1080] | 1292 | mr_free(sz_msg);
|
---|
[128] | 1293 | return (res);
|
---|
[1] | 1294 | }
|
---|
| 1295 |
|
---|
| 1296 |
|
---|
| 1297 | /**
|
---|
| 1298 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1299 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1300 | * @return 0 for success, nonzero for failure.
|
---|
| 1301 | */
|
---|
[1663] | 1302 | int start_to_write_to_next_tape()
|
---|
[1] | 1303 | {
|
---|
[128] | 1304 | int res = 0;
|
---|
[1175] | 1305 | char *command = NULL;
|
---|
| 1306 |
|
---|
[128] | 1307 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1308 | sync();
|
---|
| 1309 | sync();
|
---|
| 1310 | sync();
|
---|
[128] | 1311 | log_it("New tape requested.");
|
---|
| 1312 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1313 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[1175] | 1314 | mr_asprintf(&command,
|
---|
| 1315 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
[1594] | 1316 | bkpinfo->iso_burning_dev, bkpinfo->writer_speed, MONDO_LOGFILE,
|
---|
[1175] | 1317 | MONDO_LOGFILE);
|
---|
[128] | 1318 | log_it("Opening OUT to next CD with the command");
|
---|
| 1319 | log_it(command);
|
---|
| 1320 | log_it("Let's see what happens, shall we?");
|
---|
| 1321 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 1322 | mr_free(command);
|
---|
[128] | 1323 | if (!g_tape_stream) {
|
---|
[1175] | 1324 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 1325 | return (1);
|
---|
| 1326 | }
|
---|
| 1327 | } else {
|
---|
| 1328 | log_it("Opening OUT to next tape");
|
---|
| 1329 | if (!
|
---|
| 1330 | (g_tape_stream =
|
---|
| 1331 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1332 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1333 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1334 | return (1);
|
---|
| 1335 | }
|
---|
[1] | 1336 | }
|
---|
[128] | 1337 | g_tape_posK = 0;
|
---|
| 1338 | g_sigpipe = FALSE;
|
---|
[684] | 1339 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1340 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[128] | 1341 | return (res);
|
---|
[1] | 1342 | }
|
---|
| 1343 |
|
---|
| 1344 |
|
---|
| 1345 | /**
|
---|
| 1346 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1347 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1348 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1349 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1350 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1351 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1352 | * the old one. This insures that all archives will be on at least
|
---|
| 1353 | * one tape. Sounds inelegant, but it works.
|
---|
| 1354 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1355 | * @return 0 for success, nonzero for failure.
|
---|
| 1356 | */
|
---|
[1663] | 1357 | int write_backcatalog_to_tape()
|
---|
[1] | 1358 | {
|
---|
[1548] | 1359 | int res = 0;
|
---|
[1175] | 1360 | char *fname = NULL;
|
---|
[1362] | 1361 | struct mr_list_elt *elt = NULL;
|
---|
| 1362 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 1363 |
|
---|
[1107] | 1364 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
[1369] | 1365 | elt = tapecatalog->first;
|
---|
[1362] | 1366 | while (elt != NULL) {
|
---|
| 1367 | te = (struct s_tapecat_entry *) elt->data;
|
---|
| 1368 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir, te->fname);
|
---|
[128] | 1369 | if (!does_file_exist(fname)) {
|
---|
[1107] | 1370 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
[128] | 1371 | } else {
|
---|
| 1372 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1373 | "start-backcatalog-afio-or-slice",
|
---|
| 1374 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
[1107] | 1375 | mr_msg(2, "Writing %s", fname);
|
---|
[1663] | 1376 | if (write_file_to_stream_from_file(fname)) {
|
---|
[128] | 1377 | res++;
|
---|
[1107] | 1378 | mr_msg(2, "%s failed", fname);
|
---|
[128] | 1379 | }
|
---|
[1549] | 1380 | if (elt != tapecatalog->last) {
|
---|
[684] | 1381 | write_header_block_to_stream((off_t)0,
|
---|
[128] | 1382 | "stop-backcatalog-afio-or-slice",
|
---|
| 1383 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1384 | }
|
---|
| 1385 | }
|
---|
[1175] | 1386 | mr_free(fname);
|
---|
[1362] | 1387 | elt = elt->next;
|
---|
[128] | 1388 | }
|
---|
[1107] | 1389 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
[128] | 1390 | return (res);
|
---|
[1] | 1391 | }
|
---|
| 1392 |
|
---|
| 1393 |
|
---|
| 1394 | /**
|
---|
| 1395 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1396 | * @param fname The path to all.tar.gz.
|
---|
| 1397 | * @return 0 for success, nonzero for failure.
|
---|
| 1398 | */
|
---|
[128] | 1399 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1400 | {
|
---|
[128] | 1401 | /*@ pointers *************************************************** */
|
---|
[1175] | 1402 | FILE *fin = NULL;
|
---|
| 1403 | char *tmp = NULL;
|
---|
[1] | 1404 |
|
---|
[128] | 1405 | /*@ long ******************************************************* */
|
---|
| 1406 | long m = -1;
|
---|
| 1407 | long templong;
|
---|
[1] | 1408 |
|
---|
[128] | 1409 | /*@ int ******************************************************** */
|
---|
| 1410 | int i, j;
|
---|
[1] | 1411 |
|
---|
[128] | 1412 | /*@ buffers **************************************************** */
|
---|
| 1413 | char tempblock[256 * 1024];
|
---|
[1] | 1414 |
|
---|
[128] | 1415 | /*@ end vars *************************************************** */
|
---|
[1] | 1416 |
|
---|
[1175] | 1417 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
| 1418 | log_to_screen(_("Writing data disks to tape"));
|
---|
[128] | 1419 | log_it("Data disks = %s", fname);
|
---|
| 1420 | if (!does_file_exist(fname)) {
|
---|
[1175] | 1421 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
[128] | 1422 | log_to_screen(tmp);
|
---|
[1175] | 1423 | mr_free(tmp);
|
---|
[128] | 1424 | return (1);
|
---|
[1] | 1425 | }
|
---|
[128] | 1426 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1427 | log_OS_error(fname);
|
---|
| 1428 | fatal_error("Cannot openin the data disk");
|
---|
| 1429 | }
|
---|
| 1430 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1431 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1432 | if (!feof(fin)) {
|
---|
| 1433 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1434 | } else {
|
---|
| 1435 | m = 0;
|
---|
| 1436 | }
|
---|
| 1437 | for (; m < 256 * 1024; m++) {
|
---|
| 1438 | tempblock[m] = '\0';
|
---|
| 1439 | }
|
---|
| 1440 | g_tape_posK +=
|
---|
| 1441 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1442 | }
|
---|
| 1443 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1444 | {
|
---|
| 1445 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1446 | update_evalcall_form((int) (templong));
|
---|
| 1447 | }
|
---|
| 1448 | }
|
---|
| 1449 | paranoid_fclose(fin);
|
---|
| 1450 | close_evalcall_form();
|
---|
| 1451 | return (0);
|
---|
[1] | 1452 | }
|
---|
| 1453 |
|
---|
| 1454 |
|
---|
| 1455 | /**
|
---|
| 1456 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1457 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1458 | * @param infile The file to write to the stream.
|
---|
| 1459 | * @return 0 for success, nonzero for failure.
|
---|
| 1460 | */
|
---|
[1663] | 1461 | int write_file_to_stream_from_file(char *infile)
|
---|
[1] | 1462 | {
|
---|
[128] | 1463 | /*@ buffers **************************************************** */
|
---|
[1175] | 1464 | char *tmp = NULL;
|
---|
[1638] | 1465 | char *datablock = NULL;
|
---|
[1175] | 1466 | char *checksum = NULL;
|
---|
| 1467 | char *infile_basename = NULL;
|
---|
[1] | 1468 |
|
---|
[128] | 1469 | /*@ int ******************************************************** */
|
---|
| 1470 | int retval = 0;
|
---|
| 1471 | int noof_blocks;
|
---|
[1] | 1472 |
|
---|
[128] | 1473 | /* unsigned int ch; */
|
---|
| 1474 | unsigned int crc16;
|
---|
| 1475 | unsigned int crctt;
|
---|
[1] | 1476 |
|
---|
[128] | 1477 | /*@ pointers *************************************************** */
|
---|
| 1478 | FILE *fin;
|
---|
| 1479 | char *p;
|
---|
[1] | 1480 |
|
---|
[128] | 1481 | /*@ long ******************************************************* */
|
---|
| 1482 | long bytes_to_read = 0;
|
---|
| 1483 | long i;
|
---|
[1] | 1484 |
|
---|
[684] | 1485 | off_t filesize;
|
---|
[1] | 1486 |
|
---|
| 1487 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1488 | int ch;
|
---|
[1] | 1489 | #endif
|
---|
| 1490 |
|
---|
[128] | 1491 | /*@ initialize ************************************************ */
|
---|
| 1492 | crc16 = 0;
|
---|
| 1493 | crctt = 0;
|
---|
[1638] | 1494 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[1] | 1495 |
|
---|
[128] | 1496 | /*@ end vars *************************************************** */
|
---|
[1] | 1497 |
|
---|
[128] | 1498 | infile_basename = strrchr(infile, '/');
|
---|
| 1499 | if (infile_basename) {
|
---|
| 1500 | infile_basename++;
|
---|
| 1501 | } else {
|
---|
| 1502 | infile_basename = infile;
|
---|
| 1503 | }
|
---|
| 1504 | filesize = length_of_file(infile);
|
---|
| 1505 | if (should_we_write_to_next_tape
|
---|
[1365] | 1506 | (bkpinfo->media_size, filesize)) {
|
---|
[1663] | 1507 | start_to_write_to_next_tape();
|
---|
| 1508 | write_backcatalog_to_tape();
|
---|
[128] | 1509 | }
|
---|
| 1510 | p = strrchr(infile, '/');
|
---|
| 1511 | if (!p) {
|
---|
| 1512 | p = infile;
|
---|
| 1513 | } else {
|
---|
| 1514 | p++;
|
---|
| 1515 | }
|
---|
[1175] | 1516 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
| 1517 | (long) filesize >> 10);
|
---|
[128] | 1518 | log_it(tmp);
|
---|
[1175] | 1519 | mr_free(tmp);
|
---|
| 1520 |
|
---|
[128] | 1521 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1522 | BLK_START_FILE);
|
---|
[1] | 1523 | //go_here_to_restart_saving_of_file:
|
---|
[128] | 1524 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1525 | log_OS_error(infile);
|
---|
| 1526 | return (1);
|
---|
[1] | 1527 | }
|
---|
[128] | 1528 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1529 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
[1638] | 1530 | if (filesize < mr_conf->external_tape_blocksize) {
|
---|
[128] | 1531 | bytes_to_read = (long) filesize;
|
---|
[1638] | 1532 | for (i = 0; i < mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1533 | datablock[i] = '\0';
|
---|
| 1534 | }
|
---|
| 1535 | } else {
|
---|
[1638] | 1536 | bytes_to_read = mr_conf->external_tape_blocksize;
|
---|
[128] | 1537 | }
|
---|
| 1538 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
[1175] | 1539 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
[1638] | 1540 | (size_t) mr_conf->external_tape_blocksize,
|
---|
[1175] | 1541 | g_tape_stream) / 1024;
|
---|
[128] | 1542 | if (g_sigpipe) {
|
---|
| 1543 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1544 | fclose(fin);
|
---|
| 1545 | g_sigpipe = FALSE;
|
---|
[1663] | 1546 | start_to_write_to_next_tape();
|
---|
| 1547 | write_backcatalog_to_tape(); // kinda-sorta recursive :)
|
---|
[128] | 1548 | return (0);
|
---|
| 1549 | }
|
---|
[1] | 1550 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1551 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1552 | ch = datablock[i];
|
---|
| 1553 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1554 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1555 | }
|
---|
[1] | 1556 | #endif
|
---|
[128] | 1557 | }
|
---|
[1638] | 1558 | paranoid_free(datablock);
|
---|
[128] | 1559 | paranoid_fclose(fin);
|
---|
[1175] | 1560 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[684] | 1561 | /* BERLIOS: what does it do ??? */
|
---|
| 1562 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[128] | 1563 | BLK_STOP_FILE);
|
---|
[1175] | 1564 | mr_free(checksum);
|
---|
[1] | 1565 | // log_it("File '%s' written to tape.", infile);
|
---|
[128] | 1566 | return (retval);
|
---|
[1] | 1567 | }
|
---|
| 1568 |
|
---|
| 1569 |
|
---|
| 1570 | /**
|
---|
| 1571 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1572 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1573 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1574 | * be the length of the file that will follow.
|
---|
| 1575 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1576 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1577 | * if the file that will follow.
|
---|
| 1578 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1579 | * @return 0 for success, nonzero for failure.
|
---|
| 1580 | */
|
---|
| 1581 | int
|
---|
[684] | 1582 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[128] | 1583 | char *filename, int control_char)
|
---|
[1] | 1584 | {
|
---|
[128] | 1585 | /*@ buffers **************************************************** */
|
---|
[1638] | 1586 | char *tempblock;
|
---|
[128] | 1587 | char *p;
|
---|
[1] | 1588 |
|
---|
[128] | 1589 | /*@ int ******************************************************** */
|
---|
| 1590 | int i;
|
---|
[1] | 1591 |
|
---|
[684] | 1592 | off_t olen;
|
---|
[1] | 1593 |
|
---|
[128] | 1594 | /*@ end vars *************************************************** */
|
---|
[1] | 1595 |
|
---|
[1638] | 1596 | tempblock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[1] | 1597 |
|
---|
[128] | 1598 | olen = length_of_incoming_file;
|
---|
| 1599 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1600 | if (!p) {
|
---|
| 1601 | p = filename;
|
---|
| 1602 | } else {
|
---|
| 1603 | p++;
|
---|
| 1604 | }
|
---|
| 1605 | if (!g_tape_stream) {
|
---|
| 1606 | log_to_screen
|
---|
[1175] | 1607 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
[128] | 1608 | return (1);
|
---|
| 1609 | }
|
---|
[1638] | 1610 | for (i = 0; i < (int) mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1611 | tempblock[i] = 0;
|
---|
| 1612 | }
|
---|
[1939] | 1613 | sprintf(tempblock + 6000 + control_char, STR_HEADER);
|
---|
[128] | 1614 | tempblock[7000] = control_char;
|
---|
[684] | 1615 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[128] | 1616 | strcpy(tempblock + 1000, filename);
|
---|
| 1617 | g_tape_posK +=
|
---|
[1638] | 1618 | fwrite(tempblock, 1, (size_t) mr_conf->external_tape_blocksize,
|
---|
[128] | 1619 | g_tape_stream) / 1024;
|
---|
[1638] | 1620 | paranoid_free(tempblock);
|
---|
[1175] | 1621 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1622 | marker_to_string(control_char), p,
|
---|
| 1623 | (long) length_of_incoming_file >> 10);
|
---|
| 1624 | return (0);
|
---|
[1] | 1625 | }
|
---|
| 1626 |
|
---|
| 1627 |
|
---|
| 1628 | /**
|
---|
| 1629 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1630 | * @param should_be What we were expecting.
|
---|
| 1631 | * @param it_is What we got.
|
---|
| 1632 | */
|
---|
[128] | 1633 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1634 | {
|
---|
[128] | 1635 | /*@ buffer ***************************************************** */
|
---|
[1175] | 1636 | char *tmp = NULL;
|
---|
[1] | 1637 |
|
---|
| 1638 |
|
---|
[128] | 1639 | /*@ end vars *************************************************** */
|
---|
[1175] | 1640 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
| 1641 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
[128] | 1642 | log_to_screen(tmp);
|
---|
[1175] | 1643 | mr_free(tmp);
|
---|
[1] | 1644 | }
|
---|
| 1645 |
|
---|
| 1646 | /* @} - end of streamGroup */
|
---|