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-rw-r--r--src/journal/journal-remote-parse.c439
1 files changed, 0 insertions, 439 deletions
diff --git a/src/journal/journal-remote-parse.c b/src/journal/journal-remote-parse.c
deleted file mode 100644
index dbdf02aa3c..0000000000
--- a/src/journal/journal-remote-parse.c
+++ /dev/null
@@ -1,439 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "journal-remote-parse.h"
-#include "journald-native.h"
-
-#define LINE_CHUNK 1024u
-
-void source_free(RemoteSource *source) {
- if (!source)
- return;
-
- if (source->fd >= 0) {
- log_debug("Closing fd:%d (%s)", source->fd, source->name);
- close(source->fd);
- }
- free(source->name);
- free(source->buf);
- iovw_free_contents(&source->iovw);
- free(source);
-}
-
-static int get_line(RemoteSource *source, char **line, size_t *size) {
- ssize_t n, remain;
- char *c = NULL;
- char *newbuf = NULL;
- size_t newsize = 0;
-
- assert(source);
- assert(source->state == STATE_LINE);
- assert(source->filled <= source->size);
- assert(source->buf == NULL || source->size > 0);
-
- if (source->buf)
- c = memchr(source->buf, '\n', source->filled);
-
- if (c != NULL)
- goto docopy;
-
- resize:
- if (source->fd < 0)
- /* we have to wait for some data to come to us */
- return -EWOULDBLOCK;
-
- if (source->size - source->filled < LINE_CHUNK) {
- // XXX: add check for maximum line length
-
- if (!GREEDY_REALLOC(source->buf, source->size,
- source->filled + LINE_CHUNK))
- return log_oom();
- }
- assert(source->size - source->filled >= LINE_CHUNK);
-
- n = read(source->fd, source->buf + source->filled,
- source->size - source->filled);
- if (n < 0) {
- if (errno != EAGAIN && errno != EWOULDBLOCK)
- log_error("read(%d, ..., %zd): %m", source->fd,
- source->size - source->filled);
- return -errno;
- } else if (n == 0)
- return 0;
-
- c = memchr(source->buf + source->filled, '\n', n);
- source->filled += n;
-
- if (c == NULL)
- goto resize;
-
- docopy:
- *line = source->buf;
- *size = c + 1 - source->buf;
-
- /* Check if something remains */
- remain = source->buf + source->filled - c - 1;
- assert(remain >= 0);
- if (remain) {
- newsize = MAX(remain, LINE_CHUNK);
- newbuf = malloc(newsize);
- if (!newbuf)
- return log_oom();
- memcpy(newbuf, c + 1, remain);
- }
- source->buf = newbuf;
- source->size = newsize;
- source->filled = remain;
-
- return 1;
-}
-
-int push_data(RemoteSource *source, const char *data, size_t size) {
- assert(source);
- assert(source->state != STATE_EOF);
-
- if (!GREEDY_REALLOC(source->buf, source->size,
- source->filled + size))
- return log_oom();
-
- memcpy(source->buf + source->filled, data, size);
- source->filled += size;
-
- return 0;
-}
-
-static int fill_fixed_size(RemoteSource *source, void **data, size_t size) {
- int n;
- char *newbuf = NULL;
- size_t newsize = 0, remain;
-
- assert(source);
- assert(source->state == STATE_DATA_START ||
- source->state == STATE_DATA ||
- source->state == STATE_DATA_FINISH);
- assert(size <= DATA_SIZE_MAX);
- assert(source->filled <= source->size);
- assert(source->buf != NULL || source->size == 0);
- assert(source->buf == NULL || source->size > 0);
- assert(data);
-
- while(source->filled < size) {
- if (source->fd < 0)
- /* we have to wait for some data to come to us */
- return -EWOULDBLOCK;
-
- if (!GREEDY_REALLOC(source->buf, source->size, size))
- return log_oom();
-
- n = read(source->fd, source->buf + source->filled,
- source->size - source->filled);
- if (n < 0) {
- if (errno != EAGAIN && errno != EWOULDBLOCK)
- log_error("read(%d, ..., %zd): %m", source->fd,
- source->size - source->filled);
- return -errno;
- } else if (n == 0)
- return 0;
-
- source->filled += n;
- }
-
- *data = source->buf;
-
- /* Check if something remains */
- assert(size <= source->filled);
- remain = source->filled - size;
- if (remain) {
- newsize = MAX(remain, LINE_CHUNK);
- newbuf = malloc(newsize);
- if (!newbuf)
- return log_oom();
- memcpy(newbuf, source->buf + size, remain);
- }
- source->buf = newbuf;
- source->size = newsize;
- source->filled = remain;
-
- return 1;
-}
-
-static int get_data_size(RemoteSource *source) {
- int r;
- _cleanup_free_ void *data = NULL;
-
- assert(source);
- assert(source->state == STATE_DATA_START);
- assert(source->data_size == 0);
-
- r = fill_fixed_size(source, &data, sizeof(uint64_t));
- if (r <= 0)
- return r;
-
- source->data_size = le64toh( *(uint64_t *) data );
- if (source->data_size > DATA_SIZE_MAX) {
- log_error("Stream declares field with size %zu > %u == DATA_SIZE_MAX",
- source->data_size, DATA_SIZE_MAX);
- return -EINVAL;
- }
- if (source->data_size == 0)
- log_warning("Binary field with zero length");
-
- return 1;
-}
-
-static int get_data_data(RemoteSource *source, void **data) {
- int r;
-
- assert(source);
- assert(data);
- assert(source->state == STATE_DATA);
-
- r = fill_fixed_size(source, data, source->data_size);
- if (r <= 0)
- return r;
-
- return 1;
-}
-
-static int get_data_newline(RemoteSource *source) {
- int r;
- _cleanup_free_ char *data = NULL;
-
- assert(source);
- assert(source->state == STATE_DATA_FINISH);
-
- r = fill_fixed_size(source, (void**) &data, 1);
- if (r <= 0)
- return r;
-
- assert(data);
- if (*data != '\n') {
- log_error("expected newline, got '%c'", *data);
- return -EINVAL;
- }
-
- return 1;
-}
-
-static int process_dunder(RemoteSource *source, char *line, size_t n) {
- const char *timestamp;
- int r;
-
- assert(line);
- assert(n > 0);
- assert(line[n-1] == '\n');
-
- /* XXX: is it worth to support timestamps in extended format?
- * We don't produce them, but who knows... */
-
- timestamp = startswith(line, "__CURSOR=");
- if (timestamp)
- /* ignore __CURSOR */
- return 1;
-
- timestamp = startswith(line, "__REALTIME_TIMESTAMP=");
- if (timestamp) {
- long long unsigned x;
- line[n-1] = '\0';
- r = safe_atollu(timestamp, &x);
- if (r < 0)
- log_warning("Failed to parse __REALTIME_TIMESTAMP: '%s'", timestamp);
- else
- source->ts.realtime = x;
- return r < 0 ? r : 1;
- }
-
- timestamp = startswith(line, "__MONOTONIC_TIMESTAMP=");
- if (timestamp) {
- long long unsigned x;
- line[n-1] = '\0';
- r = safe_atollu(timestamp, &x);
- if (r < 0)
- log_warning("Failed to parse __MONOTONIC_TIMESTAMP: '%s'", timestamp);
- else
- source->ts.monotonic = x;
- return r < 0 ? r : 1;
- }
-
- timestamp = startswith(line, "__");
- if (timestamp) {
- log_notice("Unknown dunder line %s", line);
- return 1;
- }
-
- /* no dunder */
- return 0;
-}
-
-int process_data(RemoteSource *source) {
- int r;
-
- switch(source->state) {
- case STATE_LINE: {
- char *line, *sep;
- size_t n;
-
- assert(source->data_size == 0);
-
- r = get_line(source, &line, &n);
- if (r < 0)
- return r;
- if (r == 0) {
- source->state = STATE_EOF;
- return r;
- }
- assert(n > 0);
- assert(line[n-1] == '\n');
-
- if (n == 1) {
- log_debug("Received empty line, event is ready");
- free(line);
- return 1;
- }
-
- r = process_dunder(source, line, n);
- if (r != 0) {
- free(line);
- return r < 0 ? r : 0;
- }
-
- /* MESSAGE=xxx\n
- or
- COREDUMP\n
- LLLLLLLL0011223344...\n
- */
- sep = memchr(line, '=', n);
- if (sep)
- /* chomp newline */
- n--;
- else
- /* replace \n with = */
- line[n-1] = '=';
- log_debug("Received: %.*s", (int) n, line);
-
- r = iovw_put(&source->iovw, line, n);
- if (r < 0) {
- log_error("Failed to put line in iovect");
- free(line);
- return r;
- }
-
- if (!sep)
- source->state = STATE_DATA_START;
- return 0; /* continue */
- }
-
- case STATE_DATA_START:
- assert(source->data_size == 0);
-
- r = get_data_size(source);
- log_debug("get_data_size() -> %d", r);
- if (r < 0)
- return r;
- if (r == 0) {
- source->state = STATE_EOF;
- return 0;
- }
-
- source->state = source->data_size > 0 ?
- STATE_DATA : STATE_DATA_FINISH;
-
- return 0; /* continue */
-
- case STATE_DATA: {
- void *data;
-
- assert(source->data_size > 0);
-
- r = get_data_data(source, &data);
- log_debug("get_data_data() -> %d", r);
- if (r < 0)
- return r;
- if (r == 0) {
- source->state = STATE_EOF;
- return 0;
- }
-
- assert(data);
-
- r = iovw_put(&source->iovw, data, source->data_size);
- if (r < 0) {
- log_error("failed to put binary buffer in iovect");
- return r;
- }
-
- source->state = STATE_DATA_FINISH;
-
- return 0; /* continue */
- }
-
- case STATE_DATA_FINISH:
- r = get_data_newline(source);
- log_debug("get_data_newline() -> %d", r);
- if (r < 0)
- return r;
- if (r == 0) {
- source->state = STATE_EOF;
- return 0;
- }
-
- source->data_size = 0;
- source->state = STATE_LINE;
-
- return 0; /* continue */
- default:
- assert_not_reached("wtf?");
- }
-}
-
-int process_source(RemoteSource *source, Writer *writer, bool compress, bool seal) {
- int r;
-
- assert(source);
- assert(writer);
-
- r = process_data(source);
- if (r <= 0)
- return r;
-
- /* We have a full event */
- log_info("Received a full event from source@%p fd:%d (%s)",
- source, source->fd, source->name);
-
- if (!source->iovw.count) {
- log_warning("Entry with no payload, skipping");
- goto freeing;
- }
-
- assert(source->iovw.iovec);
- assert(source->iovw.count);
-
- r = writer_write(writer, &source->iovw, &source->ts, compress, seal);
- if (r < 0)
- log_error("Failed to write entry of %zu bytes: %s",
- iovw_size(&source->iovw), strerror(-r));
- else
- r = 1;
-
- freeing:
- iovw_free_contents(&source->iovw);
- return r;
-}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-12 22:43:15 +0000