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Merge pull request #3124 from poettering/small-journal-fixes

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2016-04-26 09:52:55 -04:00
commit a109d2e204
3 changed files with 40 additions and 14 deletions
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13
man/systemd.exec.xml
View File

@ -94,11 +94,10 @@
required to access <filename>/tmp</filename> and
<filename>/var/tmp</filename>.</para>
<para>Units whose output standard output or error output is
connected to any other sink but <option>null</option>,
<option>tty</option> and <option>socket</option> automatically
acquire dependencies of type <varname>After=</varname> on
<filename>journald.socket</filename>.</para>
<para>Units whose output standard output or error output is connected to <option>journal</option>,
<option>syslog</option> or <option>kmsg</option> (or their combinations with console output, see below)
automatically acquire dependencies of type <varname>After=</varname> on
<filename>systemd-journald.socket</filename>.</para>
</refsect1>
<refsect1>
@ -470,6 +469,10 @@
similar to the same option of
<varname>StandardInput=</varname>.</para>
<para>If the standard output (or error output, see below) of a unit is connected with the journal, syslog or
the kernel log buffer the unit will implicitly gain a dependency of type <varname>After=</varname> on
<filename>systemd-journald.socket</filename> (also see the automatic dependencies section above).</para>
<para>This setting defaults to the value set with
<option>DefaultStandardOutput=</option> in
<citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,

32
src/journal/journal-file.c
View File

@ -707,7 +707,11 @@ int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset
/* Objects may only be located at multiple of 64 bit */
if (!VALID64(offset))
return -EFAULT;
return -EBADMSG;
/* Object may not be located in the file header */
if (offset < le64toh(f->header->header_size))
return -EBADMSG;
r = journal_file_move_to(f, type, false, offset, sizeof(ObjectHeader), &t);
if (r < 0)
@ -1980,9 +1984,14 @@ static int generic_array_bisect(
i = right - 1;
lp = p = le64toh(array->entry_array.items[i]);
if (p <= 0)
return -EBADMSG;
r = -EBADMSG;
else
r = test_object(f, p, needle);
if (r == -EBADMSG) {
log_debug_errno(r, "Encountered invalid entry while bisecting, cutting algorithm short. (1)");
n = i;
continue;
}
if (r < 0)
return r;
@ -2058,9 +2067,14 @@ static int generic_array_bisect(
p = le64toh(array->entry_array.items[i]);
if (p <= 0)
return -EBADMSG;
r = -EBADMSG;
else
r = test_object(f, p, needle);
if (r == -EBADMSG) {
log_debug_errno(r, "Encountered invalid entry while bisecting, cutting algorithm short. (2)");
right = n = i;
continue;
}
if (r < 0)
return r;
@ -2465,12 +2479,18 @@ int journal_file_next_entry(
le64toh(f->header->entry_array_offset),
i,
ret, &ofs);
if (r == -EBADMSG && direction == DIRECTION_DOWN) {
/* Special case: when we iterate throught the journal file linearly, and hit an entry we can't read,
* consider this the end of the journal file. */
log_debug_errno(r, "Encountered entry we can't read while iterating through journal file. Considering this the end of the file.");
return 0;
}
if (r <= 0)
return r;
if (p > 0 &&
(direction == DIRECTION_DOWN ? ofs <= p : ofs >= p)) {
log_debug("%s: entry array corrupted at entry %"PRIu64, f->path, i);
log_debug("%s: entry array corrupted at entry %" PRIu64, f->path, i);
return -EBADMSG;
}

5
src/shared/logs-show.c
View File

@ -287,7 +287,10 @@ static int output_short(
if (r < 0)
return r;
}
if (r == -EBADMSG) {
log_debug_errno(r, "Skipping message we can't read: %m");
return 0;
}
if (r < 0)
return log_error_errno(r, "Failed to get journal fields: %m");