#include "build.h"
#include "macro.h"
#include "strv.h"
+#include "hashmap.h"
#include "fileio.h"
#include "conf-parser.h"
#include "microhttpd-util.h"
+#include "siphash24.h"
#ifdef HAVE_GNUTLS
#include <gnutls/gnutls.h>
#include "journal-remote-parse.h"
#include "journal-remote-write.h"
-#define REMOTE_JOURNAL_PATH "/var/log/journal/" SD_ID128_FORMAT_STR "/remote-%s.journal"
+#define REMOTE_JOURNAL_PATH "/var/log/journal/remote"
#define KEY_FILE CERTIFICATE_ROOT "/private/journal-remote.pem"
#define CERT_FILE CERTIFICATE_ROOT "/certs/journal-remote.pem"
#define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"
-static char* arg_output = NULL;
static char* arg_url = NULL;
static char* arg_getter = NULL;
static char* arg_listen_raw = NULL;
static int http_socket = -1, https_socket = -1;
static char** arg_gnutls_log = NULL;
+static JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
+static char* arg_output = NULL;
+
static char *arg_key = NULL;
static char *arg_cert = NULL;
static char *arg_trust = NULL;
return fd[0];
}
-static int spawn_curl(char* url) {
+static int spawn_curl(const char* url) {
char **argv = STRV_MAKE("curl",
"-HAccept: application/vnd.fdo.journal",
"--silent",
return r;
}
-static int spawn_getter(char *getter, char *url) {
+static int spawn_getter(const char *getter, const char *url) {
int r;
_cleanup_strv_free_ char **words = NULL;
if (!words)
return log_oom();
+ r = strv_extend(&words, url);
+ if (r < 0) {
+ log_error("Failed to create command line: %s", strerror(-r));
+ return r;
+ }
+
r = spawn_child(words[0], words);
if (r < 0)
log_error("Failed to spawn getter %s: %m", getter);
return r;
}
-static int open_output(Writer *s, const char* url) {
- _cleanup_free_ char *name, *output = NULL;
- char *c;
+#define filename_escape(s) xescape((s), "./ ")
+
+static int open_output(Writer *w, const char* host) {
+ _cleanup_free_ char *_output = NULL;
+ const char *output;
int r;
- assert(url);
- name = strdup(url);
- if (!name)
- return log_oom();
+ switch (arg_split_mode) {
+ case JOURNAL_WRITE_SPLIT_NONE:
+ output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";
+ break;
- for(c = name; *c; c++) {
- if (*c == '/' || *c == ':' || *c == ' ')
- *c = '~';
- else if (*c == '?') {
- *c = '\0';
- break;
- }
- }
+ case JOURNAL_WRITE_SPLIT_HOST: {
+ _cleanup_free_ char *name;
- if (!arg_output) {
- sd_id128_t machine;
- r = sd_id128_get_machine(&machine);
- if (r < 0) {
- log_error("failed to determine machine ID128: %s", strerror(-r));
- return r;
- }
+ assert(host);
- r = asprintf(&output, REMOTE_JOURNAL_PATH,
- SD_ID128_FORMAT_VAL(machine), name);
+ name = filename_escape(host);
+ if (!name)
+ return log_oom();
+
+ r = asprintf(&_output, "%s/remote-%s.journal",
+ arg_output ?: REMOTE_JOURNAL_PATH,
+ name);
if (r < 0)
return log_oom();
- } else {
- r = is_dir(arg_output, true);
- if (r > 0) {
- r = asprintf(&output,
- "%s/remote-%s.journal", arg_output, name);
- if (r < 0)
- return log_oom();
- } else {
- output = strdup(arg_output);
- if (!output)
- return log_oom();
- }
+
+ output = _output;
+ break;
+ }
+
+ default:
+ assert_not_reached("what?");
}
r = journal_file_open_reliably(output,
O_RDWR|O_CREAT, 0640,
arg_compress, arg_seal,
- &s->metrics,
- s->mmap,
- NULL, &s->journal);
+ &w->metrics,
+ w->mmap,
+ NULL, &w->journal);
if (r < 0)
log_error("Failed to open output journal %s: %s",
- arg_output, strerror(-r));
+ output, strerror(-r));
else
- log_info("Opened output file %s", s->journal->path);
+ log_info("Opened output file %s", w->journal->path);
return r;
}
sd_event *events;
sd_event_source *sigterm_event, *sigint_event, *listen_event;
- Writer writer;
+ Hashmap *writers;
bool check_trust;
Hashmap *daemons;
source = s->sources[fd];
if (source) {
+ /* this closes fd too */
source_free(source);
s->sources[fd] = NULL;
s->active--;
}
- close(fd);
-
return 0;
}
-static int add_source(RemoteServer *s, int fd, const char* name) {
- RemoteSource *source = NULL;
- _cleanup_free_ char *realname = NULL;
+static int add_source(RemoteServer *s, int fd, const char* _name) {
+
+ RemoteSource *source;
+ char *name;
int r;
assert(s);
assert(fd >= 0);
+ assert(_name);
- if (name) {
- realname = strdup(name);
- if (!realname)
- return log_oom();
- } else {
- r = asprintf(&realname, "fd:%d", fd);
- if (r < 0)
- return log_oom();
- }
+ log_debug("Creating source for fd:%d (%s)", fd, _name);
- log_debug("Creating source for fd:%d (%s)", fd, realname);
+ name = strdup(_name);
+ if (!name)
+ return log_oom();
r = get_source_for_fd(s, fd, &source);
if (r < 0) {
- log_error("Failed to create source for fd:%d (%s)", fd, realname);
+ log_error("Failed to create source for fd:%d (%s)", fd, name);
+ free(name);
return r;
}
+
assert(source);
assert(source->fd < 0);
+ assert(!source->name);
+
source->fd = fd;
+ source->name = name;
r = sd_event_add_io(s->events, &source->event,
- fd, EPOLLIN, dispatch_raw_source_event, s);
+ fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,
+ dispatch_raw_source_event, s);
if (r < 0) {
log_error("Failed to register event source for fd:%d: %s",
fd, strerror(-r));
static int add_raw_socket(RemoteServer *s, int fd) {
int r;
- r = sd_event_add_io(s->events, &s->listen_event, fd, EPOLLIN,
+ r = sd_event_add_io(s->events, &s->listen_event,
+ fd, EPOLLIN,
dispatch_raw_connection_event, s);
if (r < 0) {
close(fd);
**********************************************************************
**********************************************************************/
-static RemoteSource *request_meta(void **connection_cls) {
+static int init_writer_hashmap(RemoteServer *s) {
+ static const struct {
+ hash_func_t hash_func;
+ compare_func_t compare_func;
+ } functions[] = {
+ [JOURNAL_WRITE_SPLIT_NONE] = {trivial_hash_func,
+ trivial_compare_func},
+ [JOURNAL_WRITE_SPLIT_HOST] = {string_hash_func,
+ string_compare_func},
+ };
+
+ assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(functions));
+
+ s->writers = hashmap_new(functions[arg_split_mode].hash_func,
+ functions[arg_split_mode].compare_func);
+ if (!s->writers)
+ return log_oom();
+
+ return 0;
+}
+
+static int get_writer(RemoteServer *s, const char *host, sd_id128_t *machine,
+ Writer **writer) {
+ const void *key;
+ Writer *w;
+ int r;
+
+ switch(arg_split_mode) {
+ case JOURNAL_WRITE_SPLIT_NONE:
+ key = "one and only";
+ break;
+
+ case JOURNAL_WRITE_SPLIT_HOST:
+ assert(host);
+ key = host;
+ break;
+
+ default:
+ assert_not_reached("what split mode?");
+ }
+
+ w = hashmap_get(s->writers, key);
+ if (!w) {
+ w = new0(Writer, 1);
+ if (!w)
+ return -ENOMEM;
+
+ r = writer_init(w);
+ if (r < 0) {
+ free(w);
+ return r;
+ }
+
+ r = hashmap_put(s->writers, key, w);
+ if (r < 0) {
+ writer_close(w);
+ free(w);
+ return r;
+ }
+
+ r = open_output(w, host);
+ if (r < 0)
+ return r;
+ }
+
+ *writer = w;
+ return 0;
+}
+
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************/
+
+static RemoteSource *request_meta(void **connection_cls, int fd, char *hostname) {
RemoteSource *source;
assert(connection_cls);
- if (*connection_cls)
+ if (*connection_cls) {
+ free(hostname);
return *connection_cls;
+ }
source = new0(RemoteSource, 1);
- if (!source)
+ if (!source) {
+ free(hostname);
return NULL;
- source->fd = -1;
+ }
+
+ source->fd = -1; /* fd */
+ source->name = hostname;
log_debug("Added RemoteSource as connection metadata %p", source);
size_t *upload_data_size,
RemoteSource *source) {
- bool finished = false;
+ Writer *w;
int r;
+ bool finished = false;
assert(source);
log_debug("request_handler_upload: connection %p, %zu bytes",
connection, *upload_data_size);
+ r = get_writer(server, source->name, NULL, &w);
+ if (r < 0) {
+ log_warning("Failed to get writer for source %s (%s): %s",
+ source->name, source->name, strerror(-r));
+ return mhd_respondf(connection,
+ MHD_HTTP_SERVICE_UNAVAILABLE,
+ "Failed to get writer for connection: %s.\n",
+ strerror(-r));
+ }
+
if (*upload_data_size) {
log_info("Received %zu bytes", *upload_data_size);
finished = true;
while (true) {
- r = process_source(source, &server->writer, arg_compress, arg_seal);
+
+ r = process_source(source, w, arg_compress, arg_seal);
if (r == -EAGAIN || r == -EWOULDBLOCK)
break;
else if (r < 0) {
void **connection_cls) {
const char *header;
- int r ,code;
+ int r, code, fd;
+ char *hostname;
assert(connection);
assert(connection_cls);
"Content-Type: application/vnd.fdo.journal"
" is required.\n");
+ {
+ const union MHD_ConnectionInfo *ci;
+
+ ci = MHD_get_connection_info(connection,
+ MHD_CONNECTION_INFO_CONNECTION_FD);
+ if (!ci) {
+ log_error("MHD_get_connection_info failed: cannot get remote fd");
+ return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+ "Cannot check remote address");
+ return code;
+ }
+
+ fd = ci->connect_fd;
+ assert(fd >= 0);
+ }
+
if (server->check_trust) {
- r = check_permissions(connection, &code);
+ r = check_permissions(connection, &code, &hostname);
if (r < 0)
return code;
+ } else {
+ r = getnameinfo_pretty(fd, &hostname);
+ if (r < 0) {
+ return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+ "Cannot check remote hostname");
+ }
}
- if (!request_meta(connection_cls))
+ assert(hostname);
+
+ if (!request_meta(connection_cls, fd, hostname))
return respond_oom(connection);
return MHD_YES;
}
}
r = sd_event_add_io(s->events, &d->event,
- epoll_fd, EPOLLIN, dispatch_http_event, d);
+ epoll_fd, EPOLLIN,
+ dispatch_http_event, d);
if (r < 0) {
log_error("Failed to add event callback: %s", strerror(-r));
goto error;
else
r = add_raw_socket(s, fd);
} else if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
- log_info("Received a connection socket (fd:%d)", fd);
+ _cleanup_free_ char *hostname = NULL;
+
+ r = getnameinfo_pretty(fd, &hostname);
+ if (r < 0) {
+ log_error("Failed to retrieve remote name: %s", strerror(-r));
+ return r;
+ }
+
+ log_info("Received a connection socket (fd:%d) from %s", fd, hostname);
- r = add_source(s, fd, NULL);
+ r = add_source(s, fd, hostname);
} else {
log_error("Unknown socket passed on fd:%d", fd);
}
if (arg_url) {
- _cleanup_free_ char *url = NULL;
- _cleanup_strv_free_ char **urlv = strv_new(arg_url, "/entries", NULL);
- if (!urlv)
- return log_oom();
- url = strv_join(urlv, "");
- if (!url)
- return log_oom();
+ const char *url, *hostname;
+
+ url = strappenda(arg_url, "/entries");
if (arg_getter) {
log_info("Spawning getter %s...", url);
if (fd < 0)
return fd;
- r = add_source(s, fd, arg_url);
+ hostname =
+ startswith(arg_url, "https://") ?:
+ startswith(arg_url, "http://") ?:
+ arg_url;
+
+ r = add_source(s, fd, hostname);
if (r < 0)
return r;
if (!!n + !!arg_url + !!arg_listen_raw + !!arg_files)
output_name = "multiple";
- r = writer_init(&s->writer);
+ r = init_writer_hashmap(s);
if (r < 0)
return r;
- r = open_output(&s->writer, output_name);
- return r;
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE) {
+ /* In this case we know what the writer will be
+ called, so we can create it and verify that we can
+ create output as expected. */
+ Writer *w;
+
+ r = get_writer(s, NULL, NULL, &w);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
}
-static int server_destroy(RemoteServer *s) {
+static int server_destroy(RemoteServer *s, uint64_t *event_count) {
int r;
size_t i;
+ Writer *w;
MHDDaemonWrapper *d;
- r = writer_close(&s->writer);
+ *event_count = 0;
+
+ while ((w = hashmap_steal_first(s->writers))) {
+ *event_count += w->seqnum;
+
+ r = writer_close(w);
+ if (r < 0)
+ log_warning("Failed to close writer: %s", strerror(-r));
+ free(w);
+ }
+
+ hashmap_free(s->writers);
while ((d = hashmap_steal_first(s->daemons))) {
MHD_stop_daemon(d->daemon);
uint32_t revents,
void *userdata) {
+ Writer *w;
RemoteServer *s = userdata;
RemoteSource *source;
int r;
source = s->sources[fd];
assert(source->fd == fd);
- r = process_source(source, &s->writer, arg_compress, arg_seal);
+ r = get_writer(s, source->name, NULL, &w);
+ if (r < 0) {
+ log_warning("Failed to get writer for source %s (%s): %s",
+ source->name, source->name, strerror(-r));
+ return r;
+ }
+
+ r = process_source(source, w, arg_compress, arg_seal);
if (source->state == STATE_EOF) {
log_info("EOF reached with source fd:%d (%s)",
source->fd, source->name);
log_warning("EOF reached with incomplete data");
remove_source(s, source->fd);
log_info("%zd active source remaining", s->active);
+ return 0;
} else if (r == -E2BIG) {
log_error("Entry too big, skipped");
- r = 1;
- }
-
- return r;
+ return 1;
+ } else if (r == -EAGAIN) {
+ return 0;
+ } else if (r < 0) {
+ log_info("Closing connection: %s", strerror(-r));
+ remove_source(server, fd);
+ return 0;
+ } else
+ return 1;
}
-static int accept_connection(const char* type, int fd, SocketAddress *addr) {
+static int accept_connection(const char* type, int fd,
+ SocketAddress *addr, char **hostname) {
int fd2, r;
log_debug("Accepting new %s connection on fd:%d", type, fd);
switch(socket_address_family(addr)) {
case AF_INET:
case AF_INET6: {
- char* _cleanup_free_ a = NULL;
+ _cleanup_free_ char *a = NULL;
+ char *b;
r = socket_address_print(addr, &a);
if (r < 0) {
return r;
}
+ r = socknameinfo_pretty(&addr->sockaddr, addr->size, &b);
+ if (r < 0) {
+ close(fd2);
+ return r;
+ }
+
log_info("Accepted %s %s connection from %s",
type,
socket_address_family(addr) == AF_INET ? "IP" : "IPv6",
a);
+ *hostname = b;
+
return fd2;
};
default:
.size = sizeof(union sockaddr_union),
.type = SOCK_STREAM,
};
+ char *hostname;
- fd2 = accept_connection("raw", fd, &addr);
+ fd2 = accept_connection("raw", fd, &addr, &hostname);
if (fd2 < 0)
return fd2;
- return add_source(s, fd2, NULL);
+ return add_source(s, fd2, hostname);
}
/**********************************************************************
**********************************************************************
**********************************************************************/
+static const char* const journal_write_split_mode_table[_JOURNAL_WRITE_SPLIT_MAX] = {
+ [JOURNAL_WRITE_SPLIT_NONE] = "none",
+ [JOURNAL_WRITE_SPLIT_HOST] = "host",
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP(journal_write_split_mode, JournalWriteSplitMode);
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_write_split_mode,
+ journal_write_split_mode,
+ JournalWriteSplitMode,
+ "Failed to parse split mode setting");
+
static int parse_config(void) {
const ConfigTableItem items[] = {
- { "Remote", "ServerKeyFile", config_parse_path, 0, &arg_key },
- { "Remote", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
- { "Remote", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
+ { "Remote", "SplitMode", config_parse_write_split_mode, 0, &arg_split_mode },
+ { "Remote", "ServerKeyFile", config_parse_path, 0, &arg_key },
+ { "Remote", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
+ { "Remote", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
{}};
int r;
ARG_LISTEN_HTTP,
ARG_LISTEN_HTTPS,
ARG_GETTER,
+ ARG_SPLIT_MODE,
ARG_COMPRESS,
ARG_NO_COMPRESS,
ARG_SEAL,
{ "listen-http", required_argument, NULL, ARG_LISTEN_HTTP },
{ "listen-https", required_argument, NULL, ARG_LISTEN_HTTPS },
{ "output", required_argument, NULL, 'o' },
+ { "split-mode", required_argument, NULL, ARG_SPLIT_MODE },
{ "compress", no_argument, NULL, ARG_COMPRESS },
{ "no-compress", no_argument, NULL, ARG_NO_COMPRESS },
{ "seal", no_argument, NULL, ARG_SEAL },
};
int c, r;
+ bool type_a, type_b;
assert(argc >= 0);
assert(argv);
arg_output = optarg;
break;
+ case ARG_SPLIT_MODE:
+ arg_split_mode = journal_write_split_mode_from_string(optarg);
+ if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID) {
+ log_error("Invalid split mode: %s", optarg);
+ return -EINVAL;
+ }
+ break;
+
case ARG_COMPRESS:
arg_compress = true;
break;
if (optind < argc)
arg_files = argv + optind;
+ type_a = arg_getter || !strv_isempty(arg_files);
+ type_b = arg_url
+ || arg_listen_raw
+ || arg_listen_http || arg_listen_https
+ || sd_listen_fds(false) > 0;
+ if (type_a && type_b) {
+ log_error("Cannot use file input or --getter with "
+ "--arg-listen-... or socket activation.");
+ return -EINVAL;
+ }
+ if (type_a) {
+ if (!arg_output) {
+ log_error("Option --output must be specified with file input or --getter.");
+ return -EINVAL;
+ }
+
+ arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
+ }
+
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE
+ && arg_output && is_dir(arg_output, true) > 0) {
+ log_error("For SplitMode=none, output must be a file.");
+ return -EINVAL;
+ }
+
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST
+ && arg_output && is_dir(arg_output, true) <= 0) {
+ log_error("For SplitMode=host, output must be a directory.");
+ return -EINVAL;
+ }
+
+ log_debug("Full config: SplitMode=%s Key=%s Cert=%s Trust=%s",
+ journal_write_split_mode_to_string(arg_split_mode),
+ strna(arg_key),
+ strna(arg_cert),
+ strna(arg_trust));
+
return 1 /* work to do */;
}
RemoteServer s = {};
int r, r2;
_cleanup_free_ char *key = NULL, *cert = NULL, *trust = NULL;
+ uint64_t entry_count;
log_show_color(true);
log_parse_environment();
if (r < 0)
return EXIT_FAILURE;
- if (load_certificates(&key, &cert, &trust) < 0)
- return EXIT_FAILURE;
+ if (arg_listen_https || https_socket >= 0)
+ if (load_certificates(&key, &cert, &trust) < 0)
+ return EXIT_FAILURE;
if (remoteserver_init(&s, key, cert, trust) < 0)
return EXIT_FAILURE;
}
}
- log_info("Finishing after writing %" PRIu64 " entries", s.writer.seqnum);
- r2 = server_destroy(&s);
+ r2 = server_destroy(&s, &entry_count);
+ log_info("Finishing after writing %" PRIu64 " entries", entry_count);
sd_notify(false, "STATUS=Shutting down...");
~ianmdlvl / elogind.git / commitdiff