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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
fdfccdbc ZJS |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2014 Zbigniew Jędrzejewski-Szmek | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
b5efdb8a | 21 | #include "alloc-util.h" |
3ffd4af2 LP |
22 | #include "fd-util.h" |
23 | #include "journal-remote-parse.h" | |
fdfccdbc | 24 | #include "journald-native.h" |
6bedfcbb | 25 | #include "parse-util.h" |
07630cea | 26 | #include "string-util.h" |
fdfccdbc | 27 | |
fdfccdbc ZJS |
28 | void source_free(RemoteSource *source) { |
29 | if (!source) | |
30 | return; | |
31 | ||
b18453ed | 32 | journal_importer_cleanup(&source->importer); |
8201af08 | 33 | |
1fa2f38f | 34 | log_debug("Writer ref count %i", source->writer->n_ref); |
9ff48d09 ZJS |
35 | writer_unref(source->writer); |
36 | ||
8201af08 | 37 | sd_event_source_unref(source->event); |
043945b9 | 38 | sd_event_source_unref(source->buffer_event); |
8201af08 | 39 | |
fdfccdbc ZJS |
40 | free(source); |
41 | } | |
42 | ||
9ff48d09 ZJS |
43 | /** |
44 | * Initialize zero-filled source with given values. On success, takes | |
2ddb70d2 | 45 | * ownership of fd, name, and writer, otherwise does not touch them. |
9ff48d09 ZJS |
46 | */ |
47 | RemoteSource* source_new(int fd, bool passive_fd, char *name, Writer *writer) { | |
48 | ||
49 | RemoteSource *source; | |
50 | ||
51 | log_debug("Creating source for %sfd:%d (%s)", | |
52 | passive_fd ? "passive " : "", fd, name); | |
53 | ||
54 | assert(fd >= 0); | |
55 | ||
56 | source = new0(RemoteSource, 1); | |
57 | if (!source) | |
58 | return NULL; | |
59 | ||
b18453ed ZJS |
60 | source->importer.fd = fd; |
61 | source->importer.passive_fd = passive_fd; | |
62 | source->importer.name = name; | |
63 | ||
9ff48d09 ZJS |
64 | source->writer = writer; |
65 | ||
66 | return source; | |
67 | } | |
68 | ||
9ff48d09 | 69 | int process_source(RemoteSource *source, bool compress, bool seal) { |
fdfccdbc ZJS |
70 | int r; |
71 | ||
72 | assert(source); | |
9ff48d09 | 73 | assert(source->writer); |
fdfccdbc | 74 | |
b18453ed | 75 | r = journal_importer_process_data(&source->importer); |
fdfccdbc ZJS |
76 | if (r <= 0) |
77 | return r; | |
78 | ||
79 | /* We have a full event */ | |
0e72da6f | 80 | log_trace("Received full event from source@%p fd:%d (%s)", |
b18453ed | 81 | source, source->importer.fd, source->importer.name); |
fdfccdbc | 82 | |
b18453ed | 83 | if (source->importer.iovw.count == 0) { |
fdfccdbc ZJS |
84 | log_warning("Entry with no payload, skipping"); |
85 | goto freeing; | |
86 | } | |
87 | ||
b18453ed | 88 | assert(source->importer.iovw.iovec); |
fdfccdbc | 89 | |
b18453ed | 90 | r = writer_write(source->writer, &source->importer.iovw, &source->importer.ts, compress, seal); |
fdfccdbc | 91 | if (r < 0) |
c33b3297 | 92 | log_error_errno(r, "Failed to write entry of %zu bytes: %m", |
b18453ed | 93 | iovw_size(&source->importer.iovw)); |
fdfccdbc ZJS |
94 | else |
95 | r = 1; | |
96 | ||
97 | freeing: | |
b18453ed | 98 | journal_importer_drop_iovw(&source->importer); |
fdfccdbc ZJS |
99 | return r; |
100 | } |