139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <errno.h>

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <fcntl.h>

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt#include <stdio.h>

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <stdlib.h>

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt#include <string.h>

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt#include <sys/prctl.h>

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt#include <sys/socket.h>

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen#include <sys/stat.h>

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <sys/types.h>

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <unistd.h>

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <getopt.h>

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include "sd-daemon.h"

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include "journal-file.h"

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt#include "journald-native.h"

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt#include "socket-util.h"

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include "mkdir.h"

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen#include "build.h"

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen#include "macro.h"

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen#include "strv.h"

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include "fileio.h"

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include "conf-parser.h"

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include "siphash24.h"

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#ifdef HAVE_GNUTLS

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#include <gnutls/gnutls.h>

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#endif

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt#include "journal-remote.h"

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt#include "journal-remote-write.h"

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt#define REMOTE_JOURNAL_PATH "/var/log/journal/remote"

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt#define PRIV_KEY_FILE CERTIFICATE_ROOT "/private/journal-remote.pem"

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt#define CERT_FILE CERTIFICATE_ROOT "/certs/journal-remote.pem"

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt#define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic char* arg_url = NULL;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic char* arg_getter = NULL;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersenstatic char* arg_listen_raw = NULL;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersenstatic char* arg_listen_http = NULL;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersenstatic char* arg_listen_https = NULL;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersenstatic char** arg_files = NULL;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersenstatic int arg_compress = true;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersenstatic int arg_seal = false;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic int http_socket = -1, https_socket = -1;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic char** arg_gnutls_log = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic char* arg_output = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic char *arg_key = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic char *arg_cert = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic char *arg_trust = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic bool arg_trust_all = false;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic int spawn_child(const char* child, char** argv) {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int fd[2];

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt pid_t parent_pid, child_pid;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int r;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (pipe(fd) < 0) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_error("Failed to create pager pipe: %m");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return -errno;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt parent_pid = getpid();

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt child_pid = fork();

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (child_pid < 0) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = -errno;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_error("Failed to fork: %m");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt safe_close_pair(fd);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt /* In the child */

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (child_pid == 0) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = dup2(fd[1], STDOUT_FILENO);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to dup pipe to stdout: %m");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt _exit(EXIT_FAILURE);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt safe_close_pair(fd);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt /* Make sure the child goes away when the parent dies */

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt _exit(EXIT_FAILURE);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt /* Check whether our parent died before we were able

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (getppid() != parent_pid)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt _exit(EXIT_SUCCESS);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt execvp(child, argv);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to exec child %s: %m", child);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt _exit(EXIT_FAILURE);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = close(fd[1]);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_warning("Failed to close write end of pipe: %m");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return fd[0];

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt}

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic int spawn_curl(const char* url) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt char **argv = STRV_MAKE("curl",

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt "-HAccept: application/vnd.fdo.journal",

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt "--silent",

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt "--show-error",

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt url);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt int r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = spawn_child("curl", argv);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to spawn curl: %m");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt}

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic int spawn_getter(const char *getter, const char *url) {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int r;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt _cleanup_strv_free_ char **words = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt assert(getter);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt r = strv_split_quoted(&words, getter);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt if (r < 0) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt log_error("Failed to split getter option: %s", strerror(-r));

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return r;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt r = strv_extend(&words, url);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (r < 0) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt log_error("Failed to create command line: %s", strerror(-r));

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt r = spawn_child(words[0], words);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to spawn getter %s: %m", getter);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt}

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt#define filename_escape(s) xescape((s), "/ ")

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic int open_output(Writer *w, const char* host) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt _cleanup_free_ char *_output = NULL;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt const char *output;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt int r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt switch (arg_split_mode) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt case JOURNAL_WRITE_SPLIT_NONE:

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt break;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt case JOURNAL_WRITE_SPLIT_HOST: {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt _cleanup_free_ char *name;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt assert(host);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt name = filename_escape(host);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt if (!name)

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt return log_oom();

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt r = asprintf(&_output, "%s/remote-%s.journal",

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt arg_output ?: REMOTE_JOURNAL_PATH,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt name);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt if (r < 0)

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt return log_oom();

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt output = _output;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt break;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt }

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt default:

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt assert_not_reached("what?");

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt }

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt r = journal_file_open_reliably(output,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt O_RDWR|O_CREAT, 0640,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt arg_compress, arg_seal,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt &w->metrics,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt w->mmap,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt NULL, &w->journal);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt if (r < 0)

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt log_error("Failed to open output journal %s: %s",

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt output, strerror(-r));

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt else

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt log_info("Opened output file %s", w->journal->path);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt return r;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt}

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic int init_writer_hashmap(RemoteServer *s) {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt static const struct hash_ops *hash_ops[] = {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt [JOURNAL_WRITE_SPLIT_NONE] = NULL,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt [JOURNAL_WRITE_SPLIT_HOST] = &string_hash_ops,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt };

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(hash_ops));

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt s->writers = hashmap_new(hash_ops[arg_split_mode]);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (!s->writers)

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return log_oom();

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return 0;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt}

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic int get_writer(RemoteServer *s, const char *host,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt Writer **writer) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt const void *key;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt _cleanup_writer_unref_ Writer *w = NULL;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt int r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt switch(arg_split_mode) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt case JOURNAL_WRITE_SPLIT_NONE:

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt key = "one and only";

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt break;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt case JOURNAL_WRITE_SPLIT_HOST:

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(host);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt key = host;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt break;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt default:

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert_not_reached("what split mode?");

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt w = hashmap_get(s->writers, key);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (w)

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt writer_ref(w);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt else {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt w = writer_new(s);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (!w)

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return log_oom();

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt w->hashmap_key = strdup(key);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (!w->hashmap_key)

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return log_oom();

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt r = open_output(w, host);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (r < 0)

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt r = hashmap_put(s->writers, w->hashmap_key ?: key, w);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (r < 0)

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt *writer = w;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt w = NULL;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt return 0;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt}

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic RemoteServer *server;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flyktstatic int dispatch_raw_source_event(sd_event_source *event,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int fd,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt uint32_t revents,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt void *userdata);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic int dispatch_blocking_source_event(sd_event_source *event,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt void *userdata);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic int dispatch_raw_connection_event(sd_event_source *event,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt int fd,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt uint32_t revents,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt void *userdata);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic int dispatch_http_event(sd_event_source *event,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt int fd,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt uint32_t revents,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt void *userdata);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic int get_source_for_fd(RemoteServer *s,

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt int fd, char *name, RemoteSource **source) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt Writer *writer;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt int r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(fd >= 0);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(source);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1))

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return log_oom();

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt r = get_writer(s, name, &writer);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (r < 0) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt log_warning("Failed to get writer for source %s: %s",

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt name, strerror(-r));

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (s->sources[fd] == NULL) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt s->sources[fd] = source_new(fd, false, name, writer);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (!s->sources[fd]) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt writer_unref(writer);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return log_oom();

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt s->active++;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt *source = s->sources[fd];

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return 0;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt}

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flyktstatic int remove_source(RemoteServer *s, int fd) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt RemoteSource *source;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(s);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(fd >= 0 && fd < (ssize_t) s->sources_size);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt source = s->sources[fd];

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (source) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt /* this closes fd too */

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt source_free(source);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt s->sources[fd] = NULL;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt s->active--;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return 0;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt}

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flyktstatic int add_source(RemoteServer *s, int fd, char* name, bool own_name) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt RemoteSource *source;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt int r;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt assert(s);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt assert(fd >= 0);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt assert(name);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (!own_name) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt name = strdup(name);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (!name)

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return log_oom();

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt r = get_source_for_fd(s, fd, name, &source);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (r < 0) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt log_error("Failed to create source for fd:%d (%s): %s",

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt fd, name, strerror(-r));

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return r;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt r = sd_event_add_io(s->events, &source->event,

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt dispatch_raw_source_event, s);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (r == -EPERM) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt log_debug("Falling back to sd_event_add_defer for fd:%d (%s)", fd, name);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt r = sd_event_add_defer(s->events, &source->event,

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt dispatch_blocking_source_event, source);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (r == 0)

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt sd_event_source_set_enabled(source->event, SD_EVENT_ON);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (r < 0) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt log_error("Failed to register event source for fd:%d: %s",

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt fd, strerror(-r));

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt goto error;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return 1; /* work to do */

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt error:

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt remove_source(s, fd);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return r;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt}

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flyktstatic int add_raw_socket(RemoteServer *s, int fd) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt int r;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = sd_event_add_io(s->events, &s->listen_event,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt fd, EPOLLIN,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt dispatch_raw_connection_event, s);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (r < 0) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt close(fd);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return r;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt s->active ++;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return 0;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt}

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flyktstatic int setup_raw_socket(RemoteServer *s, const char *address) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt int fd;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (fd < 0)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return fd;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return add_raw_socket(s, fd);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt}

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flyktstatic RemoteSource *request_meta(void **connection_cls, int fd, char *hostname) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt RemoteSource *source;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt Writer *writer;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt int r;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(connection_cls);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (*connection_cls)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return *connection_cls;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = get_writer(server, hostname, &writer);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (r < 0) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_warning("Failed to get writer for source %s: %s",

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt hostname, strerror(-r));

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return NULL;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt source = source_new(fd, true, hostname, writer);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (!source) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_oom();

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt writer_unref(writer);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return NULL;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_debug("Added RemoteSource as connection metadata %p", source);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt *connection_cls = source;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return source;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt}

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flyktstatic void request_meta_free(void *cls,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt struct MHD_Connection *connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt void **connection_cls,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt enum MHD_RequestTerminationCode toe) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt RemoteSource *s;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(connection_cls);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt s = *connection_cls;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_debug("Cleaning up connection metadata %p", s);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt source_free(s);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt *connection_cls = NULL;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt}

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flyktstatic int process_http_upload(

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt struct MHD_Connection *connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const char *upload_data,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt size_t *upload_data_size,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt RemoteSource *source) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt bool finished = false;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt size_t remaining;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt int r;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(source);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_debug("request_handler_upload: connection %p, %zu bytes",

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt connection, *upload_data_size);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (*upload_data_size) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_debug("Received %zu bytes", *upload_data_size);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = push_data(source, upload_data, *upload_data_size);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (r < 0)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respond_oom(connection);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt *upload_data_size = 0;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt } else

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt finished = true;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt while (true) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = process_source(source, arg_compress, arg_seal);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (r == -EAGAIN || r == -EWOULDBLOCK)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt break;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt else if (r < 0) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_warning("Failed to process data for connection %p", connection);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (r == -E2BIG)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respondf(connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Entry is too large, maximum is %u bytes.\n",

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt DATA_SIZE_MAX);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt else

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respondf(connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt MHD_HTTP_UNPROCESSABLE_ENTITY,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Processing failed: %s.", strerror(-r));

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (!finished)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return MHD_YES;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt /* The upload is finished */

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt remaining = source_non_empty(source);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (remaining > 0) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_warning("Premature EOFbyte. %zu bytes lost.", remaining);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respondf(connection, MHD_HTTP_EXPECTATION_FAILED,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Premature EOF. %zu bytes of trailing data not processed.",

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt remaining);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.\n");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt};

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flyktstatic int request_handler(

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt void *cls,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt struct MHD_Connection *connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const char *url,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const char *method,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const char *version,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const char *upload_data,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt size_t *upload_data_size,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt void **connection_cls) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const char *header;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt int r, code, fd;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt _cleanup_free_ char *hostname = NULL;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(connection);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(connection_cls);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(url);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(method);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_debug("Handling a connection %s %s %s", method, url, version);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (*connection_cls)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return process_http_upload(connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt upload_data, upload_data_size,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt *connection_cls);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (!streq(method, "POST"))

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respond(connection, MHD_HTTP_METHOD_NOT_ACCEPTABLE,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Unsupported method.\n");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (!streq(url, "/upload"))

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respond(connection, MHD_HTTP_NOT_FOUND,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Not found.\n");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt header = MHD_lookup_connection_value(connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt MHD_HEADER_KIND, "Content-Type");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (!header || !streq(header, "application/vnd.fdo.journal"))

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respond(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Content-Type: application/vnd.fdo.journal"

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt " is required.\n");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt const union MHD_ConnectionInfo *ci;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt ci = MHD_get_connection_info(connection,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt MHD_CONNECTION_INFO_CONNECTION_FD);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (!ci) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt log_error("MHD_get_connection_info failed: cannot get remote fd");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt "Cannot check remote address");

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt fd = ci->connect_fd;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt assert(fd >= 0);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt }

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (server->check_trust) {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = check_permissions(connection, &code, &hostname);

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt if (r < 0)

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt return code;

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt } else {

631bbe71298ec892f77f44f94feb612646fe6853Patrik Flykt r = getnameinfo_pretty(fd, &hostname);

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt if (r < 0) {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt "Cannot check remote hostname");

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt assert(hostname);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (!request_meta(connection_cls, fd, hostname))

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return respond_oom(connection);

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt hostname = NULL;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return MHD_YES;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt}

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flyktstatic int setup_microhttpd_server(RemoteServer *s,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int fd,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt const char *key,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt const char *cert,

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt const char *trust) {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt struct MHD_OptionItem opts[] = {

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_LISTEN_SOCKET, fd},

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_END},

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_END},

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_END},

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt { MHD_OPTION_END}};

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int opts_pos = 3;

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt int flags =

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt MHD_USE_DEBUG |

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt MHD_USE_PEDANTIC_CHECKS |

a9aff3615b430f86bd0a824214d95f634efaf894Patrik Flykt MHD_USE_EPOLL_LINUX_ONLY |

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt MHD_USE_DUAL_STACK;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt const union MHD_DaemonInfo *info;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt int r, epoll_fd;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt MHDDaemonWrapper *d;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt assert(fd >= 0);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt r = fd_nonblock(fd, true);

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt if (r < 0) {

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt log_error("Failed to make fd:%d nonblocking: %s", fd, strerror(-r));

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt return r;

d1b0afe3653b4316a6361d204169620726d468a0Patrik Flykt }

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt if (key) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt assert(cert);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt opts[opts_pos++] = (struct MHD_OptionItem)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt opts[opts_pos++] = (struct MHD_OptionItem)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt flags |= MHD_USE_SSL;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (trust)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt opts[opts_pos++] = (struct MHD_OptionItem)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt d = new(MHDDaemonWrapper, 1);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (!d)

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt return log_oom();

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt d->fd = (uint64_t) fd;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt d->daemon = MHD_start_daemon(flags, 0,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt NULL, NULL,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt request_handler, NULL,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt MHD_OPTION_ARRAY, opts,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt MHD_OPTION_END);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (!d->daemon) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to start µhttp daemon");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = -EINVAL;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt goto error;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt key ? "HTTPS" : "HTTP", fd, d);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (!info) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("µhttp returned NULL daemon info");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = -ENOTSUP;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt goto error;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt epoll_fd = info->listen_fd;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (epoll_fd < 0) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("µhttp epoll fd is invalid");

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = -EUCLEAN;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt goto error;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = sd_event_add_io(s->events, &d->event,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt epoll_fd, EPOLLIN,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt dispatch_http_event, d);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to add event callback: %s", strerror(-r));

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt goto error;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = hashmap_ensure_allocated(&s->daemons, &uint64_hash_ops);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_oom();

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt goto error;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt r = hashmap_put(s->daemons, &d->fd, d);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt if (r < 0) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt log_error("Failed to add daemon to hashmap: %s", strerror(-r));

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt goto error;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt }

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt s->active ++;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return 0;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykterror:

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt MHD_stop_daemon(d->daemon);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt free(d->daemon);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt free(d);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt}

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic int setup_microhttpd_socket(RemoteServer *s,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt const char *address,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt const char *key,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt const char *cert,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt const char *trust) {

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt int fd;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen if (fd < 0)

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return fd;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt return setup_microhttpd_server(s, fd, key, cert, trust);

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt}

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic int dispatch_http_event(sd_event_source *event,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt int fd,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt uint32_t revents,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt void *userdata) {

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt MHDDaemonWrapper *d = userdata;

f12abb48fc510b8b349c05e35ba048134debaf25Patrik Flykt int r;

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt assert(d);

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen r = MHD_run(d->daemon);

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen if (r == MHD_NO) {

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen log_error("MHD_run failed!");

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen // XXX: unregister daemon

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen return -EINVAL;

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen }

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen return 1; /* work to do */

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen}

a276e6d68606861b552140cbcc003f4af10626fcTom Gundersen

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flyktstatic int dispatch_sigterm(sd_event_source *event,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt const struct signalfd_siginfo *si,

139b011ab81ccea1d51f09e0261a1c390115c6ffPatrik Flykt void *userdata) {

RemoteServer *s = userdata;

assert(s);

log_received_signal(LOG_INFO, si);

sd_event_exit(s->events, 0);

return 0;

}

static int setup_signals(RemoteServer *s) {

sigset_t mask;

int r;

assert(s);

assert_se(sigemptyset(&mask) == 0);

sigset_add_many(&mask, SIGINT, SIGTERM, -1);

assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);

r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, dispatch_sigterm, s);

if (r < 0)

return r;

r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, dispatch_sigterm, s);

if (r < 0)

return r;

return 0;

}

static int fd_fd(const char *spec) {

int fd, r;

r = safe_atoi(spec, &fd);

if (r < 0)

return r;

if (fd < 0)

return -EINVAL;

return fd;

}

static int remoteserver_init(RemoteServer *s,

const char* key,

const char* cert,

const char* trust) {

int r, n, fd;

char **file;

assert(s);

if ((arg_listen_raw || arg_listen_http) && trust) {

log_error("Option --trust makes all non-HTTPS connections untrusted.");

return -EINVAL;

}

r = sd_event_default(&s->events);

if (r < 0) {

log_error("Failed to allocate event loop: %s", strerror(-r));

return r;

}

setup_signals(s);

assert(server == NULL);

server = s;

r = init_writer_hashmap(s);

if (r < 0)

return r;

n = sd_listen_fds(true);

if (n < 0) {

log_error("Failed to read listening file descriptors from environment: %s",

strerror(-n));

return n;

} else

log_info("Received %d descriptors", n);

if (MAX(http_socket, https_socket) >= SD_LISTEN_FDS_START + n) {

log_error("Received fewer sockets than expected");

return -EBADFD;

}

for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {

if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {

log_info("Received a listening socket (fd:%d)", fd);

if (fd == http_socket)

r = setup_microhttpd_server(s, fd, NULL, NULL, NULL);

else if (fd == https_socket)

r = setup_microhttpd_server(s, fd, key, cert, trust);

else

r = add_raw_socket(s, fd);

} else if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {

char *hostname;

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, hostname, true);

if (r < 0)

free(hostname);

} else {

log_error("Unknown socket passed on fd:%d", fd);

return -EINVAL;

}

if(r < 0) {

log_error("Failed to register socket (fd:%d): %s",

fd, strerror(-r));

return r;

}

}

if (arg_url) {

const char *url, *hostname;

url = strappenda(arg_url, "/entries");

if (arg_getter) {

log_info("Spawning getter %s...", url);

fd = spawn_getter(arg_getter, url);

} else {

log_info("Spawning curl %s...", url);

fd = spawn_curl(url);

}

if (fd < 0)

return fd;

hostname =

startswith(arg_url, "https://") ?:

startswith(arg_url, "http://") ?:

arg_url;

r = add_source(s, fd, (char*) hostname, false);

if (r < 0)

return r;

}

if (arg_listen_raw) {

log_info("Listening on a socket...");

r = setup_raw_socket(s, arg_listen_raw);

if (r < 0)

return r;

}

if (arg_listen_http) {

r = setup_microhttpd_socket(s, arg_listen_http, NULL, NULL, NULL);

if (r < 0)

return r;

}

if (arg_listen_https) {

r = setup_microhttpd_socket(s, arg_listen_https, key, cert, trust);

if (r < 0)

return r;

}

STRV_FOREACH(file, arg_files) {

const char *output_name;

if (streq(*file, "-")) {

log_info("Using standard input as source.");

fd = STDIN_FILENO;

output_name = "stdin";

} else {

log_info("Reading file %s...", *file);

fd = open(*file, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);

if (fd < 0) {

log_error("Failed to open %s: %m", *file);

return -errno;

}

output_name = *file;

}

r = add_source(s, fd, (char*) output_name, false);

if (r < 0)

return r;

}

if (s->active == 0) {

log_error("Zarro sources specified");

return -EINVAL;

}

if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE) {

/* In this case we know what the writer will be

r = get_writer(s, NULL, &s->_single_writer);

if (r < 0)

return r;

}

return 0;

}

static void server_destroy(RemoteServer *s) {

size_t i;

MHDDaemonWrapper *d;

while ((d = hashmap_steal_first(s->daemons))) {

MHD_stop_daemon(d->daemon);

sd_event_source_unref(d->event);

free(d);

}

hashmap_free(s->daemons);

assert(s->sources_size == 0 || s->sources);

for (i = 0; i < s->sources_size; i++)

remove_source(s, i);

free(s->sources);

writer_unref(s->_single_writer);

hashmap_free(s->writers);

sd_event_source_unref(s->sigterm_event);

sd_event_source_unref(s->sigint_event);

sd_event_source_unref(s->listen_event);

sd_event_unref(s->events);

/* fds that we're listening on remain open... */

}

static int dispatch_raw_source_event(sd_event_source *event,

int fd,

uint32_t revents,

void *userdata) {

RemoteServer *s = userdata;

RemoteSource *source;

int r;

assert(fd >= 0 && fd < (ssize_t) s->sources_size);

source = s->sources[fd];

assert(source->fd == fd);

r = process_source(source, arg_compress, arg_seal);

if (source->state == STATE_EOF) {

size_t remaining;

log_info("EOF reached with source fd:%d (%s)",

source->fd, source->name);

remaining = source_non_empty(source);

if (remaining > 0)

log_warning("Premature EOF. %zu bytes lost.", remaining);

remove_source(s, source->fd);

log_info("%zd active sources remaining", s->active);

return 0;

} else if (r == -E2BIG) {

log_error("Entry too big, skipped");

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 dispatch_blocking_source_event(sd_event_source *event,

void *userdata) {

RemoteSource *source = userdata;

return dispatch_raw_source_event(event, source->fd, EPOLLIN, server);

}

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);

fd2 = accept4(fd, &addr->sockaddr.sa, &addr->size, SOCK_NONBLOCK|SOCK_CLOEXEC);

if (fd2 < 0) {

log_error("accept() on fd:%d failed: %m", fd);

return -errno;

}

switch(socket_address_family(addr)) {

case AF_INET:

case AF_INET6: {

_cleanup_free_ char *a = NULL;

char *b;

r = socket_address_print(addr, &a);

if (r < 0) {

log_error("socket_address_print(): %s", strerror(-r));

close(fd2);

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:

log_error("Rejected %s connection with unsupported family %d",

type, socket_address_family(addr));

close(fd2);

return -EINVAL;

}

}

static int dispatch_raw_connection_event(sd_event_source *event,

int fd,

uint32_t revents,

void *userdata) {

RemoteServer *s = userdata;

int fd2, r;

SocketAddress addr = {

.size = sizeof(union sockaddr_union),

.type = SOCK_STREAM,

};

char *hostname;

fd2 = accept_connection("raw", fd, &addr, &hostname);

if (fd2 < 0)

return fd2;

r = add_source(s, fd2, hostname, true);

if (r < 0)

free(hostname);

return r;

}

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", "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 },

{}};

return config_parse(NULL, PKGSYSCONFDIR "/journal-remote.conf", NULL,

"Remote\0",

config_item_table_lookup, items,

false, false, true, NULL);

}

static void help(void) {

printf("%s [OPTIONS...] {FILE|-}...\n\n"

"Write external journal events to journal file(s).\n\n"

" -h --help Show this help\n"

" --version Show package version\n"

" --url=URL Read events from systemd-journal-gatewayd at URL\n"

" --getter=COMMAND Read events from the output of COMMAND\n"

" --listen-raw=ADDR Listen for connections at ADDR\n"

" --listen-http=ADDR Listen for HTTP connections at ADDR\n"

" --listen-https=ADDR Listen for HTTPS connections at ADDR\n"

" -o --output=FILE|DIR Write output to FILE or DIR/external-*.journal\n"

" --compress[=BOOL] Use XZ-compression in the output journal (default: yes)\n"

" --seal[=BOOL] Use Event sealing in the output journal (default: no)\n"

" --key=FILENAME Specify key in PEM format (default:\n"

" \"" PRIV_KEY_FILE "\")\n"

" --cert=FILENAME Specify certificate in PEM format (default:\n"

" \"" CERT_FILE "\")\n"

" --trust=FILENAME|all Specify CA certificate or disable checking (default:\n"

" \"" TRUST_FILE "\")\n"

" --gnutls-log=CATEGORY...\n"

" Specify a list of gnutls logging categories\n"

"\n"

"Note: file descriptors from sd_listen_fds() will be consumed, too.\n"

, program_invocation_short_name);

}

static int parse_argv(int argc, char *argv[]) {

enum {

ARG_VERSION = 0x100,

ARG_URL,

ARG_LISTEN_RAW,

ARG_LISTEN_HTTP,

ARG_LISTEN_HTTPS,

ARG_GETTER,

ARG_SPLIT_MODE,

ARG_COMPRESS,

ARG_SEAL,

ARG_KEY,

ARG_CERT,

ARG_TRUST,

ARG_GNUTLS_LOG,

};

static const struct option options[] = {

{ "help", no_argument, NULL, 'h' },

{ "version", no_argument, NULL, ARG_VERSION },

{ "url", required_argument, NULL, ARG_URL },

{ "getter", required_argument, NULL, ARG_GETTER },

{ "listen-raw", required_argument, NULL, ARG_LISTEN_RAW },

{ "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", optional_argument, NULL, ARG_COMPRESS },

{ "seal", optional_argument, NULL, ARG_SEAL },

{ "key", required_argument, NULL, ARG_KEY },

{ "cert", required_argument, NULL, ARG_CERT },

{ "trust", required_argument, NULL, ARG_TRUST },

{ "gnutls-log", required_argument, NULL, ARG_GNUTLS_LOG },

{}

};

int c, r;

bool type_a, type_b;

assert(argc >= 0);

assert(argv);

while ((c = getopt_long(argc, argv, "ho:", options, NULL)) >= 0)

switch(c) {

case 'h':

help();

return 0 /* done */;

case ARG_VERSION:

puts(PACKAGE_STRING);

puts(SYSTEMD_FEATURES);

return 0 /* done */;

case ARG_URL:

if (arg_url) {

log_error("cannot currently set more than one --url");

return -EINVAL;

}

arg_url = optarg;

break;

case ARG_GETTER:

if (arg_getter) {

log_error("cannot currently use --getter more than once");

return -EINVAL;

}

arg_getter = optarg;

break;

case ARG_LISTEN_RAW:

if (arg_listen_raw) {

log_error("cannot currently use --listen-raw more than once");

return -EINVAL;

}

arg_listen_raw = optarg;

break;

case ARG_LISTEN_HTTP:

if (arg_listen_http || http_socket >= 0) {

log_error("cannot currently use --listen-http more than once");

return -EINVAL;

}

r = fd_fd(optarg);

if (r >= 0)

http_socket = r;

else

arg_listen_http = optarg;

break;

case ARG_LISTEN_HTTPS:

if (arg_listen_https || https_socket >= 0) {

log_error("cannot currently use --listen-https more than once");

return -EINVAL;

}

r = fd_fd(optarg);

if (r >= 0)

https_socket = r;

else

arg_listen_https = optarg;

break;

case ARG_KEY:

if (arg_key) {

log_error("Key file specified twice");

return -EINVAL;

}

arg_key = strdup(optarg);

if (!arg_key)

return log_oom();

break;

case ARG_CERT:

if (arg_cert) {

log_error("Certificate file specified twice");

return -EINVAL;

}

arg_cert = strdup(optarg);

if (!arg_cert)

return log_oom();

break;

case ARG_TRUST:

if (arg_trust || arg_trust_all) {

log_error("Confusing trusted CA configuration");

return -EINVAL;

}

if (streq(optarg, "all"))

arg_trust_all = true;

else {

#ifdef HAVE_GNUTLS

arg_trust = strdup(optarg);

if (!arg_trust)

return log_oom();

#else

log_error("Option --trust is not available.");

return -EINVAL;

#endif

}

break;

case 'o':

if (arg_output) {

log_error("cannot use --output/-o more than once");

return -EINVAL;

}

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:

if (optarg) {

r = parse_boolean(optarg);

if (r < 0) {

log_error("Failed to parse --compress= parameter.");

return -EINVAL;

}

arg_compress = !!r;

} else

arg_compress = true;

break;

case ARG_SEAL:

if (optarg) {

r = parse_boolean(optarg);

if (r < 0) {

log_error("Failed to parse --seal= parameter.");

return -EINVAL;

}

arg_seal = !!r;

} else

arg_seal = true;

break;

case ARG_GNUTLS_LOG: {

#ifdef HAVE_GNUTLS

const char *word, *state;

size_t size;

FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {

char *cat;

cat = strndup(word, size);

if (!cat)

return log_oom();

if (strv_consume(&arg_gnutls_log, cat) < 0)

return log_oom();

}

break;

#else

log_error("Option --gnutls-log is not available.");

return -EINVAL;

#endif

}

case '?':

return -EINVAL;

default:

assert_not_reached("Unknown option code.");