src/libsystemd/sd-journal/test-journal-stream.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <fcntl.h>
   4 #include <unistd.h>
   5
   6 #include "sd-journal.h"
   7
   8 #include "alloc-util.h"
   9 #include "chattr-util.h"
  10 #include "io-util.h"
  11 #include "journal-file.h"
  12 #include "journal-internal.h"
  13 #include "log.h"
  14 #include "macro.h"
  15 #include "parse-util.h"
  16 #include "rm-rf.h"
  17 #include "tests.h"
  18 #include "util.h"
  19
  20 #define N_ENTRIES 200
  21
  22 static void verify_contents(sd_journal *j, unsigned skip) {
  23         unsigned i;
  24
  25         assert_se(j);
  26
  27         i = 0;
  28         SD_JOURNAL_FOREACH(j) {
  29                 const void *d;
  30                 char *k, *c;
  31                 size_t l;
  32                 unsigned u = 0;
  33
  34                 assert_se(sd_journal_get_cursor(j, &k) >= 0);
  35                 printf("cursor: %s\n", k);
  36                 free(k);
  37
  38                 assert_se(sd_journal_get_data(j, "MAGIC", &d, &l) >= 0);
  39                 printf("\t%.*s\n", (int) l, (const char*) d);
  40
  41                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
  42                 assert_se(k = strndup(d, l));
  43                 printf("\t%s\n", k);
  44
  45                 if (skip > 0) {
  46                         assert_se(safe_atou(k + 7, &u) >= 0);
  47                         assert_se(i == u);
  48                         i += skip;
  49                 }
  50
  51                 free(k);
  52
  53                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
  54                 assert_se(sd_journal_test_cursor(j, c) > 0);
  55                 free(c);
  56         }
  57
  58         if (skip > 0)
  59                 assert_se(i == N_ENTRIES);
  60 }
  61
  62 static void run_test(void) {
  63         JournalFile *one, *two, *three;
  64         char t[] = "/var/tmp/journal-stream-XXXXXX";
  65         unsigned i;
  66         _cleanup_(sd_journal_closep) sd_journal *j = NULL;
  67         char *z;
  68         const void *data;
  69         size_t l;
  70         dual_timestamp previous_ts = DUAL_TIMESTAMP_NULL;
  71
  72         assert_se(mkdtemp(t));
  73         assert_se(chdir(t) >= 0);
  74         (void) chattr_path(t, FS_NOCOW_FL, FS_NOCOW_FL, NULL);
  75
  76         assert_se(journal_file_open(-1, "one.journal", O_RDWR|O_CREAT, 0666, true, (uint64_t) -1, false, NULL, NULL, NULL, NULL, &one) == 0);
  77         assert_se(journal_file_open(-1, "two.journal", O_RDWR|O_CREAT, 0666, true, (uint64_t) -1, false, NULL, NULL, NULL, NULL, &two) == 0);
  78         assert_se(journal_file_open(-1, "three.journal", O_RDWR|O_CREAT, 0666, true, (uint64_t) -1, false, NULL, NULL, NULL, NULL, &three) == 0);
  79
  80         for (i = 0; i < N_ENTRIES; i++) {
  81                 char *p, *q;
  82                 dual_timestamp ts;
  83                 struct iovec iovec[2];
  84
  85                 dual_timestamp_get(&ts);
  86
  87                 if (ts.monotonic <= previous_ts.monotonic)
  88                         ts.monotonic = previous_ts.monotonic + 1;
  89
  90                 if (ts.realtime <= previous_ts.realtime)
  91                         ts.realtime = previous_ts.realtime + 1;
  92
  93                 previous_ts = ts;
  94
  95                 assert_se(asprintf(&p, "NUMBER=%u", i) >= 0);
  96                 iovec[0] = IOVEC_MAKE(p, strlen(p));
  97
  98                 assert_se(asprintf(&q, "MAGIC=%s", i % 5 == 0 ? "quux" : "waldo") >= 0);
  99
 100                 iovec[1] = IOVEC_MAKE(q, strlen(q));
 101
 102                 if (i % 10 == 0)
 103                         assert_se(journal_file_append_entry(three, &ts, NULL, iovec, 2, NULL, NULL, NULL) == 0);
 104                 else {
 105                         if (i % 3 == 0)
 106                                 assert_se(journal_file_append_entry(two, &ts, NULL, iovec, 2, NULL, NULL, NULL) == 0);
 107
 108                         assert_se(journal_file_append_entry(one, &ts, NULL, iovec, 2, NULL, NULL, NULL) == 0);
 109                 }
 110
 111                 free(p);
 112                 free(q);
 113         }
 114
 115         (void) journal_file_close(one);
 116         (void) journal_file_close(two);
 117         (void) journal_file_close(three);
 118
 119         assert_se(sd_journal_open_directory(&j, t, 0) >= 0);
 120
 121         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 122         SD_JOURNAL_FOREACH_BACKWARDS(j) {
 123                 _cleanup_free_ char *c;
 124
 125                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 126                 printf("\t%.*s\n", (int) l, (const char*) data);
 127
 128                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 129                 assert_se(sd_journal_test_cursor(j, c) > 0);
 130         }
 131
 132         SD_JOURNAL_FOREACH(j) {
 133                 _cleanup_free_ char *c;
 134
 135                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 136                 printf("\t%.*s\n", (int) l, (const char*) data);
 137
 138                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 139                 assert_se(sd_journal_test_cursor(j, c) > 0);
 140         }
 141
 142         sd_journal_flush_matches(j);
 143
 144         verify_contents(j, 1);
 145
 146         printf("NEXT TEST\n");
 147         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 148
 149         assert_se(z = journal_make_match_string(j));
 150         printf("resulting match expression is: %s\n", z);
 151         free(z);
 152
 153         verify_contents(j, 5);
 154
 155         printf("NEXT TEST\n");
 156         sd_journal_flush_matches(j);
 157         assert_se(sd_journal_add_match(j, "MAGIC=waldo", 0) >= 0);
 158         assert_se(sd_journal_add_match(j, "NUMBER=10", 0) >= 0);
 159         assert_se(sd_journal_add_match(j, "NUMBER=11", 0) >= 0);
 160         assert_se(sd_journal_add_match(j, "NUMBER=12", 0) >= 0);
 161
 162         assert_se(z = journal_make_match_string(j));
 163         printf("resulting match expression is: %s\n", z);
 164         free(z);
 165
 166         verify_contents(j, 0);
 167
 168         assert_se(sd_journal_query_unique(j, "NUMBER") >= 0);
 169         SD_JOURNAL_FOREACH_UNIQUE(j, data, l)
 170                 printf("%.*s\n", (int) l, (const char*) data);
 171
 172         assert_se(rm_rf(t, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
 173 }
 174
 175 int main(int argc, char *argv[]) {
 176
 177         /* journal_file_open requires a valid machine id */
 178         if (access("/etc/machine-id", F_OK) != 0)
 179                 return log_tests_skipped("/etc/machine-id not found");
 180
 181         test_setup_logging(LOG_DEBUG);
 182
 183         /* Run this test twice. Once with old hashing and once with new hashing */
 184         assert_se(setenv("SYSTEMD_JOURNAL_KEYED_HASH", "1", 1) >= 0);
 185         run_test();
 186
 187         assert_se(setenv("SYSTEMD_JOURNAL_KEYED_HASH", "0", 1) >= 0);
 188         run_test();
 189
 190         return 0;
 191 }