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rspamd.c
1553 lines (1327 loc) · 40.8 KB
/
rspamd.c
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/*-
* Copyright 2016 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "rspamd.h"
#include "libserver/maps/map.h"
#include "lua/lua_common.h"
#include "libserver/worker_util.h"
#include "libserver/rspamd_control.h"
#include "ottery.h"
#include "cryptobox.h"
#include "utlist.h"
#include "unix-std.h"
/* pwd and grp */
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#ifdef HAVE_NFTW
#include <ftw.h>
#endif
#include <signal.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#ifdef HAVE_LIBUTIL_H
#include <libutil.h>
#endif
#ifdef HAVE_STROPS_H
#include <stropts.h>
#endif
#ifdef HAVE_OPENSSL
#include <openssl/err.h>
#include <openssl/evp.h>
#endif
#include "sqlite3.h"
#include "contrib/libev/ev.h"
/* 2 seconds to fork new process in place of dead one */
#define SOFT_FORK_TIME 2
/* 10 seconds after getting termination signal to terminate all workers with SIGKILL */
#define TERMINATION_INTERVAL (0.2)
static gboolean load_rspamd_config (struct rspamd_main *rspamd_main,
struct rspamd_config *cfg,
gboolean init_modules,
enum rspamd_post_load_options opts,
gboolean reload);
static void rspamd_cld_handler (EV_P_ ev_child *w,
struct rspamd_main *rspamd_main,
struct rspamd_worker *wrk);
/* Control socket */
static gint control_fd;
static ev_io control_ev;
static struct rspamd_stat old_stat;
static ev_timer stat_ev;
static gboolean valgrind_mode = FALSE;
/* Cmdline options */
static gboolean no_fork = FALSE;
static gboolean show_version = FALSE;
static gchar **cfg_names = NULL;
static gchar *rspamd_user = NULL;
static gchar *rspamd_group = NULL;
static gchar *rspamd_pidfile = NULL;
static gboolean is_debug = FALSE;
static gboolean is_insecure = FALSE;
static GHashTable *ucl_vars = NULL;
static gchar **lua_env = NULL;
static gboolean skip_template = FALSE;
static gint term_attempts = 0;
/* List of active listen sockets indexed by worker type */
static GHashTable *listen_sockets = NULL;
/* Defined in modules.c */
extern module_t *modules[];
extern worker_t *workers[];
/* Command line options */
static gboolean rspamd_parse_var (const gchar *option_name,
const gchar *value, gpointer data,
GError **error);
static GOptionEntry entries[] =
{
{ "no-fork", 'f', 0, G_OPTION_ARG_NONE, &no_fork,
"Do not daemonize main process", NULL },
{ "config", 'c', 0, G_OPTION_ARG_FILENAME_ARRAY, &cfg_names,
"Specify config file(s)", NULL },
{ "user", 'u', 0, G_OPTION_ARG_STRING, &rspamd_user,
"User to run rspamd as", NULL },
{ "group", 'g', 0, G_OPTION_ARG_STRING, &rspamd_group,
"Group to run rspamd as", NULL },
{ "pid", 'p', 0, G_OPTION_ARG_STRING, &rspamd_pidfile, "Path to pidfile",
NULL },
{ "debug", 'd', 0, G_OPTION_ARG_NONE, &is_debug, "Force debug output",
NULL },
{ "insecure", 'i', 0, G_OPTION_ARG_NONE, &is_insecure,
"Ignore running workers as privileged users (insecure)", NULL },
{ "version", 'v', 0, G_OPTION_ARG_NONE, &show_version,
"Show version and exit", NULL },
{"var", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer)&rspamd_parse_var,
"Redefine/define environment variable", NULL},
{"skip-template", 'T', 0, G_OPTION_ARG_NONE, &skip_template,
"Do not apply Jinja templates", NULL},
{"lua-env", '\0', 0, G_OPTION_ARG_FILENAME_ARRAY, &lua_env,
"Load lua environment from the specified files", NULL},
{ NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL, NULL }
};
static gboolean
rspamd_parse_var (const gchar *option_name,
const gchar *value, gpointer data,
GError **error)
{
gchar *k, *v, *t;
t = strchr (value, '=');
if (t != NULL) {
k = g_strdup (value);
t = k + (t - value);
v = g_strdup (t + 1);
*t = '\0';
if (ucl_vars == NULL) {
ucl_vars = g_hash_table_new_full (rspamd_strcase_hash,
rspamd_strcase_equal, g_free, g_free);
}
g_hash_table_insert (ucl_vars, k, v);
}
else {
g_set_error (error, g_quark_try_string ("main"), EINVAL,
"Bad variable format: %s", value);
return FALSE;
}
return TRUE;
}
static void
read_cmd_line (gint *argc, gchar ***argv, struct rspamd_config *cfg)
{
GError *error = NULL;
GOptionContext *context;
guint cfg_num;
context = g_option_context_new ("- run rspamd daemon");
#if defined(GIT_VERSION) && GIT_VERSION == 1
g_option_context_set_summary (context,
"Summary:\n Rspamd daemon version " RVERSION "-git\n Git id: " RID);
#else
g_option_context_set_summary (context,
"Summary:\n Rspamd daemon version " RVERSION);
#endif
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, argc, argv, &error)) {
fprintf (stderr, "option parsing failed: %s\n", error->message);
g_option_context_free (context);
exit (1);
}
cfg->rspamd_user = rspamd_user;
cfg->rspamd_group = rspamd_group;
cfg_num = cfg_names != NULL ? g_strv_length (cfg_names) : 0;
if (cfg_num == 0) {
cfg->cfg_name = FIXED_CONFIG_FILE;
}
else {
cfg->cfg_name = cfg_names[0];
g_assert (cfg_num == 1);
}
cfg->pid_file = rspamd_pidfile;
g_option_context_free (context);
}
static int
rspamd_write_pid (struct rspamd_main *main)
{
pid_t pid;
if (main->cfg->pid_file == NULL) {
return -1;
}
main->pfh = rspamd_pidfile_open (main->cfg->pid_file, 0644, &pid);
if (main->pfh == NULL) {
return -1;
}
if (main->is_privilleged) {
/* Force root user as owner of pid file */
#ifdef HAVE_PIDFILE_FILENO
if (fchown (pidfile_fileno (main->pfh), 0, 0) == -1) {
#else
if (fchown (main->pfh->pf_fd, 0, 0) == -1) {
#endif
}
}
rspamd_pidfile_write (main->pfh);
return 0;
}
/* Detect privilleged mode */
static void
detect_priv (struct rspamd_main *rspamd_main)
{
struct passwd *pwd;
struct group *grp;
uid_t euid;
euid = geteuid ();
if (euid == 0) {
if (!rspamd_main->cfg->rspamd_user && !is_insecure) {
msg_err_main (
"cannot run rspamd workers as root user, please add -u and -g options to select a proper unprivilleged user or specify --insecure flag");
exit (EXIT_FAILURE);
}
else if (is_insecure) {
rspamd_main->is_privilleged = TRUE;
rspamd_main->workers_uid = 0;
rspamd_main->workers_gid = 0;
}
else {
rspamd_main->is_privilleged = TRUE;
pwd = getpwnam (rspamd_main->cfg->rspamd_user);
if (pwd == NULL) {
msg_err_main ("user specified does not exists (%s), aborting",
strerror (errno));
exit (-errno);
}
if (rspamd_main->cfg->rspamd_group) {
grp = getgrnam (rspamd_main->cfg->rspamd_group);
if (grp == NULL) {
msg_err_main ("group specified does not exists (%s), aborting",
strerror (errno));
exit (-errno);
}
rspamd_main->workers_gid = grp->gr_gid;
}
else {
rspamd_main->workers_gid = (gid_t)-1;
}
rspamd_main->workers_uid = pwd->pw_uid;
}
}
else {
rspamd_main->is_privilleged = FALSE;
rspamd_main->workers_uid = (uid_t)-1;
rspamd_main->workers_gid = (gid_t)-1;
}
}
static void
config_logger (rspamd_mempool_t *pool, gpointer ud)
{
struct rspamd_main *rspamd_main = ud;
rspamd_main->logger = rspamd_log_open_specific (rspamd_main->server_pool,
rspamd_main->cfg,
"main",
rspamd_main->workers_uid,
rspamd_main->workers_gid);
if (rspamd_main->logger == NULL) {
/*
* XXX:
* Error has been already logged (in fact,
* we might fall back to console logger here)
*/
exit (EXIT_FAILURE);
}
rspamd_logger_configure_modules (rspamd_main->cfg->debug_modules);
}
static gboolean
reread_config (struct rspamd_main *rspamd_main)
{
struct rspamd_config *tmp_cfg, *old_cfg;
gchar *cfg_file;
int load_opts = RSPAMD_CONFIG_INIT_VALIDATE|RSPAMD_CONFIG_INIT_SYMCACHE|
RSPAMD_CONFIG_INIT_LIBS|RSPAMD_CONFIG_INIT_URL;
rspamd_symcache_save (rspamd_main->cfg->cache);
tmp_cfg = rspamd_config_new (RSPAMD_CONFIG_INIT_DEFAULT);
tmp_cfg->libs_ctx = rspamd_main->cfg->libs_ctx;
REF_RETAIN (tmp_cfg->libs_ctx);
cfg_file = rspamd_mempool_strdup (tmp_cfg->cfg_pool,
rspamd_main->cfg->cfg_name);
/* Save some variables */
tmp_cfg->cfg_name = cfg_file;
old_cfg = rspamd_main->cfg;
rspamd_main->cfg = tmp_cfg;
rspamd_logger_t *old_logger = rspamd_main->logger;
if (!load_rspamd_config (rspamd_main, tmp_cfg, TRUE, load_opts, TRUE)) {
rspamd_main->cfg = old_cfg;
rspamd_main->logger = old_logger;
msg_err_main ("cannot parse new config file, revert to old one");
REF_RELEASE (tmp_cfg);
return FALSE;
}
else {
rspamd_log_close (old_logger);
msg_info_main ("replacing config");
REF_RELEASE (old_cfg);
rspamd_main->cfg->rspamd_user = rspamd_user;
rspamd_main->cfg->rspamd_group = rspamd_group;
/* Here, we can do post actions with the existing config */
/*
* As some rules are defined in lua, we need to process them, then init
* modules and merely afterwards to init modules
*/
rspamd_lua_post_load_config (tmp_cfg);
rspamd_init_filters (tmp_cfg, true, false);
/* Do post-load actions */
rspamd_config_post_load (tmp_cfg,
load_opts|RSPAMD_CONFIG_INIT_POST_LOAD_LUA|RSPAMD_CONFIG_INIT_PRELOAD_MAPS);
msg_info_main ("config has been reread successfully");
}
return TRUE;
}
struct waiting_worker {
struct rspamd_main *rspamd_main;
struct ev_timer wait_ev;
struct rspamd_worker_conf *cf;
guint oldindex;
};
static void
rspamd_fork_delayed_cb (EV_P_ ev_timer *w, int revents)
{
struct waiting_worker *waiting_worker = (struct waiting_worker *)w->data;
ev_timer_stop (EV_A_ &waiting_worker->wait_ev);
rspamd_fork_worker (waiting_worker->rspamd_main, waiting_worker->cf,
waiting_worker->oldindex,
waiting_worker->rspamd_main->event_loop,
rspamd_cld_handler);
REF_RELEASE (waiting_worker->cf);
g_free (waiting_worker);
}
static void
rspamd_fork_delayed (struct rspamd_worker_conf *cf,
guint index,
struct rspamd_main *rspamd_main)
{
struct waiting_worker *nw;
nw = g_malloc0 (sizeof (*nw));
nw->cf = cf;
nw->oldindex = index;
nw->rspamd_main = rspamd_main;
REF_RETAIN (cf);
nw->wait_ev.data = nw;
ev_timer_init (&nw->wait_ev, rspamd_fork_delayed_cb, SOFT_FORK_TIME, 0.0);
ev_timer_start (rspamd_main->event_loop, &nw->wait_ev);
}
static GList *
create_listen_socket (GPtrArray *addrs, guint cnt,
enum rspamd_worker_socket_type listen_type)
{
GList *result = NULL;
gint fd;
guint i;
struct rspamd_worker_listen_socket *ls;
g_ptr_array_sort (addrs, rspamd_inet_address_compare_ptr);
for (i = 0; i < cnt; i ++) {
/*
* Copy address to avoid reload issues
*/
if (listen_type & RSPAMD_WORKER_SOCKET_TCP) {
fd = rspamd_inet_address_listen (g_ptr_array_index (addrs, i),
SOCK_STREAM, TRUE);
if (fd != -1) {
ls = g_malloc0 (sizeof (*ls));
ls->addr = rspamd_inet_address_copy (g_ptr_array_index (addrs, i));
ls->fd = fd;
ls->type = RSPAMD_WORKER_SOCKET_TCP;
result = g_list_prepend (result, ls);
}
}
if (listen_type & RSPAMD_WORKER_SOCKET_UDP) {
fd = rspamd_inet_address_listen (g_ptr_array_index (addrs, i),
SOCK_DGRAM, TRUE);
if (fd != -1) {
ls = g_malloc0 (sizeof (*ls));
ls->addr = rspamd_inet_address_copy (g_ptr_array_index (addrs, i));
ls->fd = fd;
ls->type = RSPAMD_WORKER_SOCKET_UDP;
result = g_list_prepend (result, ls);
}
}
}
return result;
}
static GList *
systemd_get_socket (struct rspamd_main *rspamd_main, const gchar *fdname)
{
int number, sock, num_passed, flags;
GList *result = NULL;
const gchar *e;
gchar **fdnames;
gchar *end;
struct stat st;
static const int sd_listen_fds_start = 3; /* SD_LISTEN_FDS_START */
struct rspamd_worker_listen_socket *ls;
union {
struct sockaddr_storage ss;
struct sockaddr sa;
} addr_storage;
socklen_t slen = sizeof (addr_storage);
gint stype;
number = strtoul (fdname, &end, 10);
if (end != NULL && *end != '\0') {
/* Cannot parse as number, assume a name in LISTEN_FDNAMES. */
e = getenv ("LISTEN_FDNAMES");
if (!e) {
msg_err_main ("cannot get systemd variable 'LISTEN_FDNAMES'");
errno = ENOENT;
return NULL;
}
fdnames = g_strsplit (e, ":", -1);
for (number = 0; fdnames[number]; number++) {
if (!strcmp (fdnames[number], fdname)) {
break;
}
}
if (!fdnames[number]) {
number = -1;
}
g_strfreev (fdnames);
}
if (number < 0) {
msg_warn_main ("cannot find systemd socket: %s", fdname);
errno = ENOENT;
return NULL;
}
e = getenv ("LISTEN_FDS");
if (e != NULL) {
errno = 0;
num_passed = strtoul (e, &end, 10);
if ((end == NULL || *end == '\0') && num_passed > number) {
sock = number + sd_listen_fds_start;
if (fstat (sock, &st) == -1) {
msg_warn_main ("cannot stat systemd descriptor %d", sock);
return NULL;
}
if (!S_ISSOCK (st.st_mode)) {
msg_warn_main ("systemd descriptor %d is not a socket", sock);
errno = EINVAL;
return NULL;
}
flags = fcntl (sock, F_GETFD);
if (flags != -1) {
(void)fcntl (sock, F_SETFD, flags | FD_CLOEXEC);
}
rspamd_socket_nonblocking (sock);
if (getsockname (sock, &addr_storage.sa, &slen) == -1) {
msg_warn_main ("cannot get name for systemd descriptor %d: %s",
sock, strerror (errno));
errno = EINVAL;
return NULL;
}
ls = g_malloc0 (sizeof (*ls));
ls->addr = rspamd_inet_address_from_sa (&addr_storage.sa, slen);
ls->fd = sock;
slen = sizeof (stype);
if (getsockopt (sock, SOL_SOCKET, SO_TYPE, &stype, &slen) != -1) {
if (stype == SOCK_STREAM) {
ls->type = RSPAMD_WORKER_SOCKET_TCP;
}
else {
ls->type = RSPAMD_WORKER_SOCKET_UDP;
}
}
else {
msg_warn_main ("cannot get type for systemd descriptor %d: %s",
sock, strerror (errno));
ls->type = RSPAMD_WORKER_SOCKET_TCP;
}
result = g_list_prepend (result, ls);
}
else if (num_passed <= number) {
msg_err_main ("systemd LISTEN_FDS does not contain the expected fd: %d",
num_passed);
errno = EINVAL;
}
}
else {
msg_err_main ("cannot get systemd variable 'LISTEN_FDS'");
errno = ENOENT;
}
return result;
}
static void
pass_signal_cb (gpointer key, gpointer value, gpointer ud)
{
struct rspamd_worker *cur = value;
gint signo = GPOINTER_TO_INT (ud);
kill (cur->pid, signo);
}
static void
rspamd_pass_signal (GHashTable * workers, gint signo)
{
g_hash_table_foreach (workers, pass_signal_cb, GINT_TO_POINTER (signo));
}
static inline uintptr_t
make_listen_key (struct rspamd_worker_bind_conf *cf)
{
rspamd_cryptobox_fast_hash_state_t st;
guint i, keylen = 0;
guint8 *key;
rspamd_inet_addr_t *addr;
guint16 port;
rspamd_cryptobox_fast_hash_init (&st, rspamd_hash_seed ());
if (cf->is_systemd) {
/* Something like 'systemd:0' or 'systemd:controller'. */
rspamd_cryptobox_fast_hash_update (&st, cf->name, strlen (cf->name));
}
else {
rspamd_cryptobox_fast_hash_update (&st, cf->name, strlen (cf->name));
for (i = 0; i < cf->cnt; i ++) {
addr = g_ptr_array_index (cf->addrs, i);
key = rspamd_inet_address_get_hash_key (
addr, &keylen);
rspamd_cryptobox_fast_hash_update (&st, key, keylen);
port = rspamd_inet_address_get_port (addr);
rspamd_cryptobox_fast_hash_update (&st, &port, sizeof (port));
}
}
return rspamd_cryptobox_fast_hash_final (&st);
}
static void
spawn_worker_type (struct rspamd_main *rspamd_main, struct ev_loop *event_loop,
struct rspamd_worker_conf *cf)
{
gint i;
if (cf->count < 0) {
msg_info_main ("skip spawning of worker %s: disabled in configuration",
cf->worker->name);
return;
}
if (cf->worker->flags & RSPAMD_WORKER_UNIQUE) {
if (cf->count > 1) {
msg_warn_main (
"cannot spawn more than 1 %s worker, so spawn one",
cf->worker->name);
}
rspamd_fork_worker (rspamd_main, cf, 0, event_loop, rspamd_cld_handler);
}
else if (cf->worker->flags & RSPAMD_WORKER_THREADED) {
rspamd_fork_worker (rspamd_main, cf, 0, event_loop, rspamd_cld_handler);
}
else {
for (i = 0; i < cf->count; i++) {
rspamd_fork_worker (rspamd_main, cf, i, event_loop,
rspamd_cld_handler);
}
}
}
static void
spawn_workers (struct rspamd_main *rspamd_main, struct ev_loop *ev_base)
{
GList *cur, *ls;
struct rspamd_worker_conf *cf;
gpointer p;
guintptr key;
struct rspamd_worker_bind_conf *bcf;
gboolean listen_ok = FALSE;
GPtrArray *seen_mandatory_workers;
worker_t **cw, *wrk;
guint i;
/* Special hack for hs_helper if it's not defined in a config */
seen_mandatory_workers = g_ptr_array_new ();
cur = rspamd_main->cfg->workers;
while (cur) {
cf = cur->data;
listen_ok = FALSE;
if (cf->worker == NULL) {
msg_err_main ("type of worker is unspecified, skip spawning");
}
else {
if (!cf->enabled || cf->count <= 0) {
msg_info_main ("worker of type %s(%s) is disabled in the config, "
"skip spawning", g_quark_to_string (cf->type),
cf->bind_conf ? cf->bind_conf->name : "none");
cur = g_list_next (cur);
continue;
}
if (cf->worker->flags & RSPAMD_WORKER_ALWAYS_START) {
g_ptr_array_add (seen_mandatory_workers, cf->worker);
}
if (cf->worker->flags & RSPAMD_WORKER_HAS_SOCKET) {
LL_FOREACH (cf->bind_conf, bcf) {
key = make_listen_key (bcf);
if ((p =
g_hash_table_lookup (listen_sockets,
GINT_TO_POINTER (key))) == NULL) {
if (!bcf->is_systemd) {
/* Create listen socket */
ls = create_listen_socket (bcf->addrs, bcf->cnt,
cf->worker->listen_type);
}
else {
ls = systemd_get_socket (rspamd_main,
g_ptr_array_index (bcf->addrs, 0));
}
if (ls == NULL) {
msg_err_main ("cannot listen on %s socket %s: %s",
bcf->is_systemd ? "systemd" : "normal",
bcf->name,
strerror (errno));
}
else {
g_hash_table_insert (listen_sockets, (gpointer)key, ls);
listen_ok = TRUE;
}
}
else {
/* We had socket for this type of worker */
ls = p;
listen_ok = TRUE;
}
/* Do not add existing lists as it causes loops */
if (g_list_position (cf->listen_socks, ls) == -1) {
cf->listen_socks = g_list_concat (cf->listen_socks, ls);
}
}
if (listen_ok) {
spawn_worker_type (rspamd_main, ev_base, cf);
}
else {
if (cf->bind_conf == NULL) {
msg_err_main ("cannot create listen socket for %s",
g_quark_to_string (cf->type));
} else {
msg_err_main ("cannot create listen socket for %s at %s",
g_quark_to_string (cf->type), cf->bind_conf->name);
}
rspamd_hard_terminate (rspamd_main);
g_assert_not_reached ();
}
}
else {
spawn_worker_type (rspamd_main, ev_base, cf);
}
}
cur = g_list_next (cur);
}
for (cw = workers; *cw != NULL; cw ++) {
gboolean seen = FALSE;
wrk = *cw;
if (wrk->flags & RSPAMD_WORKER_ALWAYS_START) {
for (i = 0; i < seen_mandatory_workers->len; i ++) {
if (wrk == g_ptr_array_index (seen_mandatory_workers, i)) {
seen = TRUE;
break;
}
}
if (!seen) {
cf = rspamd_config_new_worker (rspamd_main->cfg, NULL);
cf->count = 1;
cf->worker = wrk;
cf->type = g_quark_from_static_string (wrk->name);
if (cf->worker->worker_init_func) {
cf->ctx = cf->worker->worker_init_func (rspamd_main->cfg);
}
spawn_worker_type (rspamd_main, ev_base, cf);
}
}
}
g_ptr_array_free (seen_mandatory_workers, TRUE);
}
static void
kill_old_workers (gpointer key, gpointer value, gpointer unused)
{
struct rspamd_worker *w = value;
struct rspamd_main *rspamd_main;
rspamd_main = w->srv;
if (w->state == rspamd_worker_state_running) {
w->state = rspamd_worker_state_terminating;
kill (w->pid, SIGUSR2);
ev_io_stop (rspamd_main->event_loop, &w->srv_ev);
g_hash_table_remove_all (w->control_events_pending);
msg_info_main ("send signal to worker %P", w->pid);
}
else {
msg_info_main ("do not send signal to worker %P, already sent", w->pid);
}
}
static void
rspamd_worker_wait (struct rspamd_worker *w)
{
struct rspamd_main *rspamd_main;
rspamd_main = w->srv;
if (term_attempts < 0) {
if (w->cf->worker->flags & RSPAMD_WORKER_KILLABLE) {
if (kill (w->pid, SIGKILL) == -1) {
if (errno == ESRCH) {
/* We have actually killed the process */
return;
}
}
else {
msg_warn_main ("terminate worker %s(%P) with SIGKILL",
g_quark_to_string (w->type), w->pid);
}
}
else {
kill (w->pid, SIGKILL);
if (errno == ESRCH) {
/* We have actually killed the process */
return;
}
else {
msg_err_main ("data corruption warning: terminating "
"special worker %s(%P) with SIGKILL",
g_quark_to_string (w->type), w->pid);
}
}
}
}
static void
hash_worker_wait_callback (gpointer key, gpointer value, gpointer unused)
{
rspamd_worker_wait ((struct rspamd_worker *)value);
}
struct core_check_cbdata {
struct rspamd_config *cfg;
gsize total_count;
gsize total_size;
};
#ifdef HAVE_NFTW
static struct core_check_cbdata cores_cbdata;
static gint
rspamd_check_core_cb (const gchar *path, const struct stat *st,
gint flag, struct FTW *ft)
{
if (S_ISREG (st->st_mode)) {
cores_cbdata.total_count ++;
/* Use physical size instead of displayed one */
cores_cbdata.total_size += st->st_blocks * 512;
}
return 0;
}
#endif
static void
rspamd_check_core_limits (struct rspamd_main *rspamd_main)
{
#ifdef HAVE_NFTW
struct rspamd_config *cfg = rspamd_main->cfg;
cores_cbdata.cfg = cfg;
cores_cbdata.total_count = 0;
cores_cbdata.total_size = 0;
if (cfg->cores_dir && (cfg->max_cores_count || cfg->max_cores_size)) {
if (nftw (cfg->cores_dir, rspamd_check_core_cb, 1, FTW_MOUNT|FTW_PHYS)
== -1) {
msg_err_main ("nftw failed for path %s: %s", cfg->cores_dir,
strerror (errno));
}
else {
if (!rspamd_main->cores_throttling) {
if (cfg->max_cores_size &&
cores_cbdata.total_size > cfg->max_cores_size) {
msg_warn_main (
"enable cores throttling as size of cores in"
" %s is %Hz, limit is %Hz",
cfg->cores_dir,
cores_cbdata.total_size,
cfg->max_cores_size);
rspamd_main->cores_throttling = TRUE;
}
if (cfg->max_cores_count &&
cores_cbdata.total_count > cfg->max_cores_count) {
msg_warn_main (
"enable cores throttling as count of cores in"
" %s is %z, limit is %z",
cfg->cores_dir,
cores_cbdata.total_count,
cfg->max_cores_count);
rspamd_main->cores_throttling = TRUE;
}
}
else {
if (cfg->max_cores_size &&
cores_cbdata.total_size < cfg->max_cores_size) {
msg_info_main (
"disable cores throttling as size of cores in"
" %s is now %Hz, limit is %Hz",
cfg->cores_dir,
cores_cbdata.total_size,
cfg->max_cores_size);
rspamd_main->cores_throttling = FALSE;
}
if (cfg->max_cores_count &&
cores_cbdata.total_count < cfg->max_cores_count) {
msg_info_main (
"disable cores throttling as count of cores in"
" %s is %z, limit is %z",
cfg->cores_dir,
cores_cbdata.total_count,
cfg->max_cores_count);
rspamd_main->cores_throttling = FALSE;
}
}
}
}
#endif
}
static void
reopen_log_handler (gpointer key, gpointer value, gpointer unused)
{
struct rspamd_worker *w = value;
struct rspamd_main *rspamd_main;
rspamd_main = w->srv;
if (kill (w->pid, SIGUSR1) == -1) {
msg_err_main ("kill failed for pid %P: %s", w->pid, strerror (errno));
}
}
static gboolean
load_rspamd_config (struct rspamd_main *rspamd_main,
struct rspamd_config *cfg, gboolean init_modules,
enum rspamd_post_load_options opts,
gboolean reload)
{
cfg->compiled_modules = modules;
cfg->compiled_workers = workers;
if (!rspamd_config_read (cfg, cfg->cfg_name, config_logger, rspamd_main,
ucl_vars, skip_template, lua_env)) {
return FALSE;
}
/* Strictly set temp dir */
if (!cfg->temp_dir) {
msg_warn_main ("tempdir is not set, trying to use $TMPDIR");
cfg->temp_dir =
rspamd_mempool_strdup (cfg->cfg_pool, getenv ("TMPDIR"));
if (!cfg->temp_dir) {
msg_warn_main ("$TMPDIR is empty too, using /tmp as default");
cfg->temp_dir = rspamd_mempool_strdup (cfg->cfg_pool, "/tmp");
}
}
if (!reload) {
/*
* As some rules are defined in lua, we need to process them, then init
* modules and merely afterwards to init modules
*/
rspamd_lua_post_load_config (cfg);
if (init_modules) {
rspamd_init_filters (cfg, reload, false);
}
/* Do post-load actions */
rspamd_config_post_load (cfg, opts);
}
return TRUE;
}
static void
rspamd_detach_worker (struct rspamd_main *rspamd_main, struct rspamd_worker *wrk)
{
ev_io_stop (rspamd_main->event_loop, &wrk->srv_ev);
ev_timer_stop (rspamd_main->event_loop, &wrk->hb.heartbeat_ev);
}
static void
rspamd_attach_worker (struct rspamd_main *rspamd_main, struct rspamd_worker *wrk)
{
ev_io_start (rspamd_main->event_loop, &wrk->srv_ev);
ev_timer_start (rspamd_main->event_loop, &wrk->hb.heartbeat_ev);
}
static void
stop_srv_ev (gpointer key, gpointer value, gpointer ud)
{
struct rspamd_worker *cur = (struct rspamd_worker *)value;
struct rspamd_main *rspamd_main = (struct rspamd_main *)ud;
rspamd_detach_worker (rspamd_main, cur);
}
static void
start_srv_ev (gpointer key, gpointer value, gpointer ud)
{
struct rspamd_worker *cur = (struct rspamd_worker *)value;
struct rspamd_main *rspamd_main = (struct rspamd_main *)ud;
rspamd_attach_worker (rspamd_main, cur);
}
static void