a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

4871690d9e32608bbd9b18505b5326c2079c9690Allin Cottrell#include <errno.h>

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <fcntl.h>

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#include <stdio.h>

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#include <stdlib.h>

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#include <string.h>

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#include <sys/prctl.h>

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#include <sys/socket.h>

13790add4bf648fed816361794d8277a75253410Lennart Poettering#include <unistd.h>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include <getopt.h>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering#include "sd-daemon.h"

a09561746f15b84da9471b5c4be74e53d19e4f3fLennart Poettering#include "journal-file.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "journald-native.h"

3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering#include "socket-util.h"

13790add4bf648fed816361794d8277a75253410Lennart Poettering#include "build.h"

afc5dbf37fd2399d37976388d9dd9ab470ecf446Lennart Poettering#include "macro.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "strv.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "fileio.h"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "conf-parser.h"

3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#ifdef HAVE_GNUTLS

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen#include <gnutls/gnutls.h>

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#endif

6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "journal-remote.h"

4f5dd3943bef8a04be7e3b838b822bb9a7ad6cb3Lennart Poettering#include "journal-remote-write.h"

15a5e95075a7f6007dd97b2a165c8ed16fe683dfLennart Poettering

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#define REMOTE_JOURNAL_PATH "/var/log/journal/remote"

7ccbd1ae843d77275f2c542582a9a80e5e058a70Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#define PRIV_KEY_FILE CERTIFICATE_ROOT "/private/journal-remote.pem"

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#define CERT_FILE CERTIFICATE_ROOT "/certs/journal-remote.pem"

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering#define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char* arg_url = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char* arg_getter = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char* arg_listen_raw = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char* arg_listen_http = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char* arg_listen_https = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char** arg_files = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int arg_compress = true;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int arg_seal = false;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int http_socket = -1, https_socket = -1;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char** arg_gnutls_log = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char* arg_output = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char *arg_key = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char *arg_cert = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic char *arg_trust = NULL;

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmekstatic bool arg_trust_all = false;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int spawn_child(const char* child, char** argv) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int fd[2];

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering pid_t parent_pid, child_pid;

13790add4bf648fed816361794d8277a75253410Lennart Poettering int r;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (pipe(fd) < 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_error_errno(errno, "Failed to create pager pipe: %m");

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering parent_pid = getpid();

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering child_pid = fork();

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (child_pid < 0) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = -errno;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_error_errno(errno, "Failed to fork: %m");

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering safe_close_pair(fd);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering /* In the child */

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (child_pid == 0) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = dup2(fd[1], STDOUT_FILENO);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error_errno(errno, "Failed to dup pipe to stdout: %m");

13790add4bf648fed816361794d8277a75253410Lennart Poettering _exit(EXIT_FAILURE);

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering safe_close_pair(fd);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering /* Make sure the child goes away when the parent dies */

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering _exit(EXIT_FAILURE);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering /* Check whether our parent died before we were able

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (getppid() != parent_pid)

13790add4bf648fed816361794d8277a75253410Lennart Poettering _exit(EXIT_SUCCESS);

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmek

13790add4bf648fed816361794d8277a75253410Lennart Poettering execvp(child, argv);

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error_errno(errno, "Failed to exec child %s: %m", child);

13790add4bf648fed816361794d8277a75253410Lennart Poettering _exit(EXIT_FAILURE);

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = close(fd[1]);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_warning_errno(errno, "Failed to close write end of pipe: %m");

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering return fd[0];

13790add4bf648fed816361794d8277a75253410Lennart Poettering}

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poetteringstatic int spawn_curl(const char* url) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering char **argv = STRV_MAKE("curl",

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering "-HAccept: application/vnd.fdo.journal",

13790add4bf648fed816361794d8277a75253410Lennart Poettering "--silent",

13790add4bf648fed816361794d8277a75253410Lennart Poettering "--show-error",

13790add4bf648fed816361794d8277a75253410Lennart Poettering url);

13790add4bf648fed816361794d8277a75253410Lennart Poettering int r;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = spawn_child("curl", argv);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error_errno(errno, "Failed to spawn curl: %m");

13790add4bf648fed816361794d8277a75253410Lennart Poettering return r;

13790add4bf648fed816361794d8277a75253410Lennart Poettering}

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poetteringstatic int spawn_getter(const char *getter, const char *url) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering int r;

13790add4bf648fed816361794d8277a75253410Lennart Poettering _cleanup_strv_free_ char **words = NULL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(getter);

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = strv_split_quoted(&words, getter, false);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return log_error_errno(r, "Failed to split getter option: %m");

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = strv_extend(&words, url);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return log_error_errno(r, "Failed to create command line: %m");

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = spawn_child(words[0], words);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error_errno(errno, "Failed to spawn getter %s: %m", getter);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering return r;

13790add4bf648fed816361794d8277a75253410Lennart Poettering}

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering#define filename_escape(s) xescape((s), "/ ")

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poetteringstatic int open_output(Writer *w, const char* host) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering _cleanup_free_ char *_output = NULL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering const char *output;

13790add4bf648fed816361794d8277a75253410Lennart Poettering int r;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering switch (arg_split_mode) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering case JOURNAL_WRITE_SPLIT_NONE:

13790add4bf648fed816361794d8277a75253410Lennart Poettering output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";

13790add4bf648fed816361794d8277a75253410Lennart Poettering break;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering case JOURNAL_WRITE_SPLIT_HOST: {

13790add4bf648fed816361794d8277a75253410Lennart Poettering _cleanup_free_ char *name;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(host);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering name = filename_escape(host);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!name)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return log_oom();

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = asprintf(&_output, "%s/remote-%s.journal",

13790add4bf648fed816361794d8277a75253410Lennart Poettering arg_output ?: REMOTE_JOURNAL_PATH,

13790add4bf648fed816361794d8277a75253410Lennart Poettering name);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return log_oom();

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering output = _output;

13790add4bf648fed816361794d8277a75253410Lennart Poettering break;

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering default:

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering assert_not_reached("what?");

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = journal_file_open_reliably(output,

13790add4bf648fed816361794d8277a75253410Lennart Poettering O_RDWR|O_CREAT, 0640,

13790add4bf648fed816361794d8277a75253410Lennart Poettering arg_compress, arg_seal,

13790add4bf648fed816361794d8277a75253410Lennart Poettering &w->metrics,

13790add4bf648fed816361794d8277a75253410Lennart Poettering w->mmap,

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering NULL, &w->journal);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error_errno(r, "Failed to open output journal %s: %m",

13790add4bf648fed816361794d8277a75253410Lennart Poettering output);

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering else

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_debug("Opened output file %s", w->journal->path);

13790add4bf648fed816361794d8277a75253410Lennart Poettering return r;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering}

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poetteringstatic int init_writer_hashmap(RemoteServer *s) {

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering static const struct hash_ops *hash_ops[] = {

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering [JOURNAL_WRITE_SPLIT_NONE] = NULL,

13790add4bf648fed816361794d8277a75253410Lennart Poettering [JOURNAL_WRITE_SPLIT_HOST] = &string_hash_ops,

13790add4bf648fed816361794d8277a75253410Lennart Poettering };

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(hash_ops));

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering s->writers = hashmap_new(hash_ops[arg_split_mode]);

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering if (!s->writers)

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering return log_oom();

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering return 0;

dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering}

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poetteringstatic int get_writer(RemoteServer *s, const char *host,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering Writer **writer) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering const void *key;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering _cleanup_writer_unref_ Writer *w = NULL;

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek int r;

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek switch(arg_split_mode) {

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek case JOURNAL_WRITE_SPLIT_NONE:

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmek key = "one and only";

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering break;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering case JOURNAL_WRITE_SPLIT_HOST:

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(host);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering key = host;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering break;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering default:

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert_not_reached("what split mode?");

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering w = hashmap_get(s->writers, key);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (w)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering writer_ref(w);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering else {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering w = writer_new(s);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (!w)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_oom();

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering w->hashmap_key = strdup(key);

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen if (!w->hashmap_key)

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen return log_oom();

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = open_output(w, host);

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek if (r < 0)

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek r = hashmap_put(s->writers, w->hashmap_key ?: key, w);

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek if (r < 0)

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek return r;

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering *writer = w;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering w = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return 0;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmekstatic RemoteServer *server;

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmek

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int dispatch_raw_source_event(sd_event_source *event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int fd,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering uint32_t revents,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering void *userdata);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int dispatch_blocking_source_event(sd_event_source *event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering void *userdata);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int dispatch_raw_connection_event(sd_event_source *event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int fd,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering uint32_t revents,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering void *userdata);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int dispatch_http_event(sd_event_source *event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int fd,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering uint32_t revents,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering void *userdata);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int get_source_for_fd(RemoteServer *s,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int fd, char *name, RemoteSource **source) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering Writer *writer;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering /* This takes ownership of name, but only on success. */

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(fd >= 0);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(source);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1))

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_oom();

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = get_writer(s, name, &writer);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_warning_errno(r, "Failed to get writer for source %s: %m",

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (s->sources[fd] == NULL) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering s->sources[fd] = source_new(fd, false, name, writer);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (!s->sources[fd]) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering writer_unref(writer);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_oom();

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering s->active++;

41891700e02daf0cab9e86908c76ac6f411bbd57Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering *source = s->sources[fd];

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return 0;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int remove_source(RemoteServer *s, int fd) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering RemoteSource *source;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(s);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(fd >= 0 && fd < (ssize_t) s->sources_size);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering source = s->sources[fd];

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (source) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering /* this closes fd too */

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering source_free(source);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering s->sources[fd] = NULL;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering s->active--;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return 0;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int add_source(RemoteServer *s, int fd, char* name, bool own_name) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering RemoteSource *source;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering /* This takes ownership of name, even on failure, if own_name is true. */

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(s);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(fd >= 0);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (!own_name) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering name = strdup(name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (!name)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_oom();

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = get_source_for_fd(s, fd, name, &source);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_error_errno(r, "Failed to create source for fd:%d (%s): %m",

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd, name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering free(name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = sd_event_add_io(s->events, &source->event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,

13790add4bf648fed816361794d8277a75253410Lennart Poettering dispatch_raw_source_event, s);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r == -EPERM) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_debug("Falling back to sd_event_add_defer for fd:%d (%s)", fd, name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = sd_event_add_defer(s->events, &source->event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering dispatch_blocking_source_event, source);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r == 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering sd_event_source_set_enabled(source->event, SD_EVENT_ON);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_error_errno(r, "Failed to register event source for fd:%d: %m",

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering goto error;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = sd_event_source_set_description(source->event, name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_error_errno(r, "Failed to set source name for fd:%d: %m", fd);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering goto error;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return 1; /* work to do */

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering error:

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering remove_source(s, fd);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int add_raw_socket(RemoteServer *s, int fd) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering _cleanup_close_ int fd_ = fd;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering char name[sizeof("raw-socket-")-1 + DECIMAL_STR_MAX(int) + 1];

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering assert(fd >= 0);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = sd_event_add_io(s->events, &s->listen_event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd, EPOLLIN,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering dispatch_raw_connection_event, s);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering xsprintf(name, "raw-socket-%d", fd);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = sd_event_source_set_description(s->listen_event, name);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd_ = -1;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering s->active ++;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return 0;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int setup_raw_socket(RemoteServer *s, const char *address) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int fd;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (fd < 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return fd;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return add_raw_socket(s, fd);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int request_meta(void **connection_cls, int fd, char *hostname) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering RemoteSource *source;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering Writer *writer;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int r;

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering assert(connection_cls);

91bf3b3e124575f6f647bff29766e9d992f55b32Lennart Poettering if (*connection_cls)

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering return 0;

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = get_writer(server, hostname, &writer);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0)

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_warning_errno(r, "Failed to get writer for source %s: %m",

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering hostname);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering source = source_new(fd, true, hostname, writer);

56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt if (!source) {

91bf3b3e124575f6f647bff29766e9d992f55b32Lennart Poettering writer_unref(writer);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return log_oom();

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

7b77ed8cf36e8eca6017791626044b61ae2d68e7Lennart Poettering log_debug("Added RemoteSource as connection metadata %p", source);

91bf3b3e124575f6f647bff29766e9d992f55b32Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering *connection_cls = source;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return 0;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic void request_meta_free(void *cls,

91bf3b3e124575f6f647bff29766e9d992f55b32Lennart Poettering struct MHD_Connection *connection,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering void **connection_cls,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering enum MHD_RequestTerminationCode toe) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering RemoteSource *s;

91bf3b3e124575f6f647bff29766e9d992f55b32Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(connection_cls);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering s = *connection_cls;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (s) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_debug("Cleaning up connection metadata %p", s);

13790add4bf648fed816361794d8277a75253410Lennart Poettering source_free(s);

13790add4bf648fed816361794d8277a75253410Lennart Poettering *connection_cls = NULL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

13790add4bf648fed816361794d8277a75253410Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int process_http_upload(

13790add4bf648fed816361794d8277a75253410Lennart Poettering struct MHD_Connection *connection,

13790add4bf648fed816361794d8277a75253410Lennart Poettering const char *upload_data,

13790add4bf648fed816361794d8277a75253410Lennart Poettering size_t *upload_data_size,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering RemoteSource *source) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering bool finished = false;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering size_t remaining;

13790add4bf648fed816361794d8277a75253410Lennart Poettering int r;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(source);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_trace("%s: connection %p, %zu bytes",

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmek __func__, connection, *upload_data_size);

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmek

2de56f70941eaf91a4520bf33de47a87ebd8b2cbZbigniew Jędrzejewski-Szmek if (*upload_data_size) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_trace("Received %zu bytes", *upload_data_size);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = push_data(source, upload_data, *upload_data_size);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respond_oom(connection);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering *upload_data_size = 0;

13790add4bf648fed816361794d8277a75253410Lennart Poettering } else

13790add4bf648fed816361794d8277a75253410Lennart Poettering finished = true;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering while (true) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = process_source(source, arg_compress, arg_seal);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r == -EAGAIN || r == -EWOULDBLOCK)

13790add4bf648fed816361794d8277a75253410Lennart Poettering break;

13790add4bf648fed816361794d8277a75253410Lennart Poettering else if (r < 0) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_warning("Failed to process data for connection %p", connection);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r == -E2BIG)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respondf(connection,

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,

13790add4bf648fed816361794d8277a75253410Lennart Poettering "Entry is too large, maximum is %u bytes.\n",

13790add4bf648fed816361794d8277a75253410Lennart Poettering DATA_SIZE_MAX);

13790add4bf648fed816361794d8277a75253410Lennart Poettering else

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respondf(connection,

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_HTTP_UNPROCESSABLE_ENTITY,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering "Processing failed: %s.", strerror(-r));

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering if (!finished)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return MHD_YES;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering /* The upload is finished */

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering remaining = source_non_empty(source);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering if (remaining > 0) {

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_warning("Premature EOFbyte. %zu bytes lost.", remaining);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering return mhd_respondf(connection, MHD_HTTP_EXPECTATION_FAILED,

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering "Premature EOF. %zu bytes of trailing data not processed.",

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering remaining);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.\n");

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering};

e1427b138fbf7b7f13bb61187635b882be3ca2b2Michal Schmidt

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int request_handler(

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering void *cls,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering struct MHD_Connection *connection,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering const char *url,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering const char *method,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering const char *version,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering const char *upload_data,

13790add4bf648fed816361794d8277a75253410Lennart Poettering size_t *upload_data_size,

13790add4bf648fed816361794d8277a75253410Lennart Poettering void **connection_cls) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering const char *header;

13790add4bf648fed816361794d8277a75253410Lennart Poettering int r, code, fd;

13790add4bf648fed816361794d8277a75253410Lennart Poettering _cleanup_free_ char *hostname = NULL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(connection);

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(connection_cls);

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(url);

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(method);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_trace("Handling a connection %s %s %s", method, url, version);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (*connection_cls)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return process_http_upload(connection,

13790add4bf648fed816361794d8277a75253410Lennart Poettering upload_data, upload_data_size,

13790add4bf648fed816361794d8277a75253410Lennart Poettering *connection_cls);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!streq(method, "POST"))

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respond(connection, MHD_HTTP_METHOD_NOT_ACCEPTABLE,

13790add4bf648fed816361794d8277a75253410Lennart Poettering "Unsupported method.\n");

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!streq(url, "/upload"))

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return mhd_respond(connection, MHD_HTTP_NOT_FOUND,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering "Not found.\n");

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering header = MHD_lookup_connection_value(connection,

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_HEADER_KIND, "Content-Type");

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!header || !streq(header, "application/vnd.fdo.journal"))

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respond(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE,

13790add4bf648fed816361794d8277a75253410Lennart Poettering "Content-Type: application/vnd.fdo.journal"

13790add4bf648fed816361794d8277a75253410Lennart Poettering " is required.\n");

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering {

13790add4bf648fed816361794d8277a75253410Lennart Poettering const union MHD_ConnectionInfo *ci;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering ci = MHD_get_connection_info(connection,

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_CONNECTION_INFO_CONNECTION_FD);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!ci) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error("MHD_get_connection_info failed: cannot get remote fd");

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,

13790add4bf648fed816361794d8277a75253410Lennart Poettering "Cannot check remote address");

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering fd = ci->connect_fd;

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(fd >= 0);

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (server->check_trust) {

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering r = check_permissions(connection, &code, &hostname);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return code;

13790add4bf648fed816361794d8277a75253410Lennart Poettering } else {

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = getnameinfo_pretty(fd, &hostname);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering "Cannot check remote hostname");

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(hostname);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering r = request_meta(connection_cls, fd, hostname);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r == -ENOMEM)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return respond_oom(connection);

13790add4bf648fed816361794d8277a75253410Lennart Poettering else if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering strerror(-r));

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering hostname = NULL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering return MHD_YES;

13790add4bf648fed816361794d8277a75253410Lennart Poettering}

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poetteringstatic int setup_microhttpd_server(RemoteServer *s,

13790add4bf648fed816361794d8277a75253410Lennart Poettering int fd,

13790add4bf648fed816361794d8277a75253410Lennart Poettering const char *key,

13790add4bf648fed816361794d8277a75253410Lennart Poettering const char *cert,

13790add4bf648fed816361794d8277a75253410Lennart Poettering const char *trust) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering struct MHD_OptionItem opts[] = {

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_LISTEN_SOCKET, fd},

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_END},

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_END},

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_END},

13790add4bf648fed816361794d8277a75253410Lennart Poettering { MHD_OPTION_END}};

13790add4bf648fed816361794d8277a75253410Lennart Poettering int opts_pos = 3;

13790add4bf648fed816361794d8277a75253410Lennart Poettering int flags =

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_USE_DEBUG |

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_USE_PEDANTIC_CHECKS |

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_USE_EPOLL_LINUX_ONLY |

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_USE_DUAL_STACK;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering const union MHD_DaemonInfo *info;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering int r, epoll_fd;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering MHDDaemonWrapper *d;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(fd >= 0);

15d91bff36c61d38df8edff258d1702a017a0e66Zbigniew Jędrzejewski-Szmek

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = fd_nonblock(fd, true);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (r < 0)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return log_error_errno(r, "Failed to make fd:%d nonblocking: %m", fd);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (key) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering assert(cert);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering opts[opts_pos++] = (struct MHD_OptionItem)

13790add4bf648fed816361794d8277a75253410Lennart Poettering {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};

13790add4bf648fed816361794d8277a75253410Lennart Poettering opts[opts_pos++] = (struct MHD_OptionItem)

13790add4bf648fed816361794d8277a75253410Lennart Poettering {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering flags |= MHD_USE_SSL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (trust)

13790add4bf648fed816361794d8277a75253410Lennart Poettering opts[opts_pos++] = (struct MHD_OptionItem)

13790add4bf648fed816361794d8277a75253410Lennart Poettering {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering d = new(MHDDaemonWrapper, 1);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!d)

13790add4bf648fed816361794d8277a75253410Lennart Poettering return log_oom();

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering d->fd = (uint64_t) fd;

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering d->daemon = MHD_start_daemon(flags, 0,

13790add4bf648fed816361794d8277a75253410Lennart Poettering NULL, NULL,

13790add4bf648fed816361794d8277a75253410Lennart Poettering request_handler, NULL,

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_OPTION_ARRAY, opts,

13790add4bf648fed816361794d8277a75253410Lennart Poettering MHD_OPTION_END);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!d->daemon) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error("Failed to start µhttp daemon");

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = -EINVAL;

13790add4bf648fed816361794d8277a75253410Lennart Poettering goto error;

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",

13790add4bf648fed816361794d8277a75253410Lennart Poettering key ? "HTTPS" : "HTTP", fd, d);

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering

13790add4bf648fed816361794d8277a75253410Lennart Poettering info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (!info) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error("µhttp returned NULL daemon info");

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = -ENOTSUP;

13790add4bf648fed816361794d8277a75253410Lennart Poettering goto error;

13790add4bf648fed816361794d8277a75253410Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

7b77ed8cf36e8eca6017791626044b61ae2d68e7Lennart Poettering epoll_fd = info->listen_fd;

13790add4bf648fed816361794d8277a75253410Lennart Poettering if (epoll_fd < 0) {

13790add4bf648fed816361794d8277a75253410Lennart Poettering log_error("µhttp epoll fd is invalid");

13790add4bf648fed816361794d8277a75253410Lennart Poettering r = -EUCLEAN;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering goto error;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

15d91bff36c61d38df8edff258d1702a017a0e66Zbigniew Jędrzejewski-Szmek

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = sd_event_add_io(s->events, &d->event,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering epoll_fd, EPOLLIN,

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering dispatch_http_event, d);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_error_errno(r, "Failed to add event callback: %m");

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek goto error;

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek }

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek r = sd_event_source_set_description(d->event, "epoll-fd");

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_error_errno(r, "Failed to set source name: %m");

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt goto error;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering r = hashmap_ensure_allocated(&s->daemons, &uint64_hash_ops);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering log_oom();

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt goto error;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

4a61c3e51e96a747c30598d78ee3a24e7c569e9fZbigniew Jędrzejewski-Szmek r = hashmap_put(s->daemons, &d->fd, d);

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering if (r < 0) {

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt log_error_errno(r, "Failed to add daemon to hashmap: %m");

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt goto error;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering }

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering s->active ++;

151b9b9662a90455262ce575a8a8ae74bf4ff336Lennart Poettering return 0;

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidterror:

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering MHD_stop_daemon(d->daemon);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering free(d->daemon);

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt free(d);

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt return r;

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering}

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poettering

a45b9fca6b91a767dcd9060cfcb30617dad234c7Lennart Poetteringstatic int setup_microhttpd_socket(RemoteServer *s,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering const char *address,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering const char *key,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering const char *cert,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering const char *trust) {

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering int fd;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering fd = make_socket_fd(LOG_DEBUG, address, SOCK_STREAM | SOCK_CLOEXEC);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering if (fd < 0)

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering return fd;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering return setup_microhttpd_server(s, fd, key, cert, trust);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering}

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poetteringstatic int dispatch_http_event(sd_event_source *event,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering int fd,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering uint32_t revents,

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering void *userdata) {

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering MHDDaemonWrapper *d = userdata;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering int r;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering assert(d);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering r = MHD_run(d->daemon);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering if (r == MHD_NO) {

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering log_error("MHD_run failed!");

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering // XXX: unregister daemon

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering return -EINVAL;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering }

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering return 1; /* work to do */

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering}

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poetteringstatic int setup_signals(RemoteServer *s) {

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering sigset_t mask;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering int r;

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering assert(s);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering assert_se(sigemptyset(&mask) == 0);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering sigset_add_many(&mask, SIGINT, SIGTERM, -1);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, NULL, s);

if (r < 0)

return r;

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

if (r < 0)

return r;

return 0;

}

static int negative_fd(const char *spec) {

/* Return a non-positive number as its inverse, -EINVAL otherwise. */

int fd, r;

r = safe_atoi(spec, &fd);

if (r < 0)

return r;

if (fd > 0)

return -EINVAL;

else

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)

return log_error_errno(r, "Failed to allocate event loop: %m");

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)

return log_error_errno(n, "Failed to read listening file descriptors from environment: %m");

else

log_debug("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, true)) {

log_debug("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, false)) {

char *hostname;

r = getnameinfo_pretty(fd, &hostname);

if (r < 0)

return log_error_errno(r, "Failed to retrieve remote name: %m");

log_debug("Received a connection socket (fd:%d) from %s", fd, hostname);

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

} else {

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

return -EINVAL;

}

if (r < 0)

return log_error_errno(r, "Failed to register socket (fd:%d): %m",

fd);

}

if (arg_url) {

const char *url, *hostname;

url = strjoina(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_debug("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_debug("Using standard input as source.");

fd = STDIN_FILENO;

output_name = "stdin";

} else {

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

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

if (fd < 0)

return log_error_errno(errno, "Failed to open %s: %m", *file);

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

source->fd, source->name);

remaining = source_non_empty(source);

if (remaining > 0)

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

remove_source(s, source->fd);

log_debug("%zu active sources remaining", s->active);

return 0;

} else if (r == -E2BIG) {

log_notice_errno(E2BIG, "Entry too big, skipped");

return 1;

} else if (r == -EAGAIN || r == -EWOULDBLOCK) {

return 0;

} else if (r < 0) {

log_debug_errno(r, "Closing connection: %m");

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)

return log_error_errno(errno, "accept() on fd:%d failed: %m", fd);

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_errno(r, "socket_address_print(): %m");

close(fd2);

return r;

}

r = socknameinfo_pretty(&addr->sockaddr, addr->size, &b);

if (r < 0) {

close(fd2);

return r;

}

log_debug("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;

SocketAddress addr = {

.size = sizeof(union sockaddr_union),

.type = SOCK_STREAM,

};

char *hostname;

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

if (fd2 < 0)

return fd2;

return add_source(s, fd2, hostname, true);

}

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_many(PKGSYSCONFDIR "/journal-remote.conf",

CONF_DIRS_NULSTR("systemd/journal-remote.conf"),

"Remote\0", config_item_table_lookup, items,

false, 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] XZ-compress the output journal (default: yes)\n"

" --seal[=BOOL] Use event sealing (default: no)\n"

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

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

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

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

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

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

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

" Specify a list of gnutls logging categories\n"

" --split-mode=none|host How many output files to create\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 = negative_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 = negative_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.");

}

if (optind < argc)

arg_files = argv + optind;

type_a = arg_getter || !strv_isempty(arg_files);