void schedule(void (*f)(void*,void*,void*,void*),int nloops, void *a1,
void *a2, void *a3, void *a4) {
pool *p, *sub_pool;
sched_t *s;
if (scheds == NULL) {
p = make_sub_pool(permanent_pool);
pr_pool_tag(p, "Schedules Pool");
scheds = xaset_create(p, NULL);
} else {
p = scheds->pool;
}
sub_pool = make_sub_pool(p);
pr_pool_tag(sub_pool, "schedule pool");
s = pcalloc(sub_pool, sizeof(sched_t));
s->pool = sub_pool;
s->f = f;
s->a1 = a1;
s->a2 = a2;
s->a3 = a3;
s->a4 = a4;
s->loops = nloops;
xaset_insert(scheds, (xasetmember_t *) s);
}
int child_add(pid_t pid, int fd) {
pool *p;
pr_child_t *ch;
/* If no child-tracking list has been allocated, create one. */
if (!child_pool) {
child_pool = make_sub_pool(permanent_pool);
pr_pool_tag(child_pool, "Child Pool");
}
if (!child_list)
child_list = xaset_create(make_sub_pool(child_pool), NULL);
p = make_sub_pool(child_pool);
pr_pool_tag(p, "child session pool");
ch = pcalloc(p, sizeof(pr_child_t));
ch->ch_pool = p;
ch->ch_pid = pid;
time(&ch->ch_when);
ch->ch_pipefd = fd;
ch->ch_dead = FALSE;
xaset_insert(child_list, (xasetmember_t *) ch);
child_listlen++;
return 0;
}
static void create_main_server(void) {
pool *main_pool;
main_pool = make_sub_pool(permanent_pool);
pr_pool_tag(main_pool, "testsuite#main_server pool");
server_list = xaset_create(main_pool, NULL);
main_server = (server_rec *) pcalloc(main_pool, sizeof(server_rec));
xaset_insert(server_list, (xasetmember_t *) main_server);
main_server->pool = main_pool;
main_server->conf = xaset_create(main_pool, NULL);
main_server->set = server_list;
main_server->sid = 1;
main_server->notes = pr_table_nalloc(main_pool, 0, 8);
/* TCP KeepAlive is enabled by default, with the system defaults. */
main_server->tcp_keepalive = palloc(main_server->pool,
sizeof(struct tcp_keepalive));
main_server->tcp_keepalive->keepalive_enabled = TRUE;
main_server->tcp_keepalive->keepalive_idle = -1;
main_server->tcp_keepalive->keepalive_count = -1;
main_server->tcp_keepalive->keepalive_intvl = -1;
main_server->ServerName = "Test Server";
main_server->ServerPort = 21;
}
void schedule(void (*cb)(void *, void *, void *, void *), int nloops,
void *arg1, void *arg2, void *arg3, void *arg4) {
pool *p, *sub_pool;
sched_t *s;
if (cb == NULL ||
nloops < 0) {
return;
}
if (scheds == NULL) {
p = make_sub_pool(permanent_pool);
pr_pool_tag(p, "Schedules Pool");
scheds = xaset_create(p, NULL);
} else {
p = scheds->pool;
}
sub_pool = make_sub_pool(p);
pr_pool_tag(sub_pool, "schedule pool");
s = pcalloc(sub_pool, sizeof(sched_t));
s->pool = sub_pool;
s->cb = cb;
s->arg1 = arg1;
s->arg2 = arg2;
s->arg3 = arg3;
s->arg4 = arg4;
s->nloops = nloops;
xaset_insert(scheds, (xasetmember_t *) s);
}
int pr_timer_reset(int timerno, module *mod) {
struct timer *t = NULL;
if (!timers) {
errno = EPERM;
return -1;
}
if (_indispatch) {
errno = EINTR;
return -1;
}
pr_alarms_block();
if (!recycled)
recycled = xaset_create(timer_pool, NULL);
for (t = (struct timer *) timers->xas_list; t; t = t->next) {
if (t->timerno == timerno &&
(t->mod == mod || mod == ANY_MODULE)) {
t->count = t->interval;
xaset_remove(timers, (xasetmember_t *) t);
xaset_insert(recycled, (xasetmember_t *) t);
nalarms++;
/* The handle_alarm() function also readjusts the timers lists
* as part of its processing, so it needs to be called when a timer
* is reset.
*/
handle_alarm();
break;
}
}
pr_alarms_unblock();
if (t != NULL) {
pr_trace_msg("timer", 7, "reset timer ID %d ('%s', for module '%s')",
t->timerno, t->desc, t->mod ? t->mod->name : "[none]");
return t->timerno;
}
return 0;
}
/* This function does the work of iterating through the list of registered
* timers, checking to see if their callbacks should be invoked and whether
* they should be removed from the registration list. Its return value is
* the amount of time remaining on the first timer in the list.
*/
static int process_timers(int elapsed) {
struct timer *t = NULL, *next = NULL;
if (!recycled)
recycled = xaset_create(timer_pool, NULL);
if (!elapsed &&
!recycled->xas_list) {
if (!timers)
return 0;
return (timers->xas_list ? ((struct timer *) timers->xas_list)->count : 0);
}
/* Critical code, no interruptions please */
if (_indispatch)
return 0;
pr_alarms_block();
_indispatch++;
if (elapsed) {
for (t = (struct timer *) timers->xas_list; t; t = next) {
/* If this timer has already been handled, skip */
next = t->next;
if (t->remove) {
/* Move the timer onto the free_timers chain, for later reuse. */
xaset_remove(timers, (xasetmember_t *) t);
xaset_insert(free_timers, (xasetmember_t *) t);
} else if ((t->count -= elapsed) <= 0) {
/* This timer's interval has elapsed, so trigger its callback. */
pr_trace_msg("timer", 4,
"%ld %s for timer ID %d ('%s', for module '%s') elapsed, invoking "
"callback (%p)", t->interval,
t->interval != 1 ? "seconds" : "second", t->timerno,
t->desc ? t->desc : "<unknown>",
t->mod ? t->mod->name : "<none>", t->callback);
if (t->callback(t->interval, t->timerno, t->interval - t->count,
t->mod) == 0) {
/* A return value of zero means this timer is done, and can be
* removed.
*/
xaset_remove(timers, (xasetmember_t *) t);
xaset_insert(free_timers, (xasetmember_t *) t);
} else {
/* A non-zero return value from a timer callback signals that
* the timer should be reused/restarted.
*/
pr_trace_msg("timer", 6, "restarting timer ID %d ('%s'), as per "
"callback", t->timerno, t->desc ? t->desc : "<unknown>");
xaset_remove(timers, (xasetmember_t *) t);
t->count = t->interval;
xaset_insert(recycled, (xasetmember_t *) t);
}
}
}
}
/* Put the recycled timers back into the main timer list. */
while ((t = (struct timer *) recycled->xas_list) != NULL) {
xaset_remove(recycled, (xasetmember_t *) t);
xaset_insert_sort(timers, (xasetmember_t *) t, TRUE);
}
_indispatch--;
pr_alarms_unblock();
/* If no active timers remain in the list, there is no reason to set the
* SIGALRM handle.
*/
return (timers->xas_list ? ((struct timer *) timers->xas_list)->count : 0);
}
int pr_timer_add(int seconds, int timerno, module *mod, callback_t cb,
const char *desc) {
struct timer *t = NULL;
if (seconds <= 0 ||
cb == NULL ||
desc == NULL) {
errno = EINVAL;
return -1;
}
if (!timers)
timers = xaset_create(timer_pool, (XASET_COMPARE) timer_cmp);
/* Check to see that, if specified, the timerno is not already in use. */
if (timerno >= 0) {
for (t = (struct timer *) timers->xas_list; t; t = t->next) {
if (t->timerno == timerno) {
errno = EPERM;
return -1;
}
}
}
if (!free_timers)
free_timers = xaset_create(timer_pool, NULL);
/* Try to use an old timer first */
pr_alarms_block();
t = (struct timer *) free_timers->xas_list;
if (t != NULL) {
xaset_remove(free_timers, (xasetmember_t *) t);
} else {
if (timer_pool == NULL) {
timer_pool = make_sub_pool(permanent_pool);
pr_pool_tag(timer_pool, "Timer Pool");
}
/* Must allocate a new one */
t = palloc(timer_pool, sizeof(struct timer));
}
if (timerno < 0) {
/* Dynamic timer */
if (dynamic_timerno < PR_TIMER_DYNAMIC_TIMERNO) {
dynamic_timerno = PR_TIMER_DYNAMIC_TIMERNO;
}
timerno = dynamic_timerno++;
}
t->timerno = timerno;
t->count = t->interval = seconds;
t->callback = cb;
t->mod = mod;
t->remove = 0;
t->desc = desc;
/* If called while _indispatch, add to the recycled list to prevent
* list corruption
*/
if (_indispatch) {
if (!recycled)
recycled = xaset_create(timer_pool, NULL);
xaset_insert(recycled, (xasetmember_t *) t);
} else {
xaset_insert_sort(timers, (xasetmember_t *) t, TRUE);
nalarms++;
set_sig_alarm();
/* The handle_alarm() function also readjusts the timers lists
* as part of its processing, so it needs to be called when a timer
* is added.
*/
handle_alarm();
}
pr_alarms_unblock();
pr_trace_msg("timer", 7, "added timer ID %d ('%s', for module '%s'), "
"triggering in %ld %s", t->timerno, t->desc,
t->mod ? t->mod->name : "[none]", t->interval,
t->interval != 1 ? "seconds" : "second");
return timerno;
}
int pr_timer_remove(int timerno, module *mod) {
struct timer *t = NULL, *tnext = NULL;
int nremoved = 0;
/* If there are no timers currently registered, do nothing. */
if (!timers)
return 0;
pr_alarms_block();
for (t = (struct timer *) timers->xas_list; t; t = tnext) {
tnext = t->next;
if ((timerno < 0 || t->timerno == timerno) &&
(mod == ANY_MODULE || t->mod == mod)) {
nremoved++;
if (_indispatch) {
t->remove++;
} else {
xaset_remove(timers, (xasetmember_t *) t);
xaset_insert(free_timers, (xasetmember_t *) t);
nalarms++;
/* The handle_alarm() function also readjusts the timers lists
* as part of its processing, so it needs to be called when a timer
* is removed.
*/
handle_alarm();
}
pr_trace_msg("timer", 7, "removed timer ID %d ('%s', for module '%s')",
t->timerno, t->desc, t->mod ? t->mod->name : "[none]");
}
/* If we are removing a specific timer, break out of the loop now.
* Otherwise, keep removing any matching timers.
*/
if (nremoved > 0 &&
timerno >= 0) {
break;
}
}
pr_alarms_unblock();
if (nremoved == 0) {
errno = ENOENT;
return -1;
}
/* If we removed a specific timer because of the given timerno, return
* that timerno value.
*/
if (timerno >= 0) {
return timerno;
}
return nremoved;
}
config_rec *pr_parser_config_ctxt_open(const char *name) {
config_rec *c = NULL, *parent = *parser_curr_config;
pool *c_pool = NULL, *parent_pool = NULL;
xaset_t **set = NULL;
if (name == NULL) {
errno = EINVAL;
return NULL;
}
if (parent) {
parent_pool = parent->pool;
set = &parent->subset;
} else {
parent_pool = (*parser_curr_server)->pool;
set = &(*parser_curr_server)->conf;
}
/* Allocate a sub-pool for this config_rec.
*
* Note: special exception for <Global> configs: the parent pool is
* 'global_config_pool' (a pool just for that context), not the pool of the
* parent server. This keeps <Global> config recs from being freed
* prematurely, and helps to avoid memory leaks.
*/
if (strncasecmp(name, "<Global>", 9) == 0) {
if (global_config_pool == NULL) {
global_config_pool = make_sub_pool(permanent_pool);
pr_pool_tag(global_config_pool, "<Global> Pool");
}
parent_pool = global_config_pool;
}
c_pool = make_sub_pool(parent_pool);
pr_pool_tag(c_pool, "sub-config pool");
c = (config_rec *) pcalloc(c_pool, sizeof(config_rec));
if (!*set) {
pool *set_pool = make_sub_pool(parent_pool);
*set = xaset_create(set_pool, NULL);
(*set)->pool = set_pool;
}
xaset_insert(*set, (xasetmember_t *) c);
c->pool = c_pool;
c->set = *set;
c->parent = parent;
c->name = pstrdup(c->pool, name);
if (parent) {
if (parent->config_type == CONF_DYNDIR) {
c->flags |= CF_DYNAMIC;
}
}
(void) pr_parser_config_ctxt_push(c);
return c;
}
static int counter_sess_init(void) {
config_rec *c;
c = find_config(main_server->conf, CONF_PARAM, "CounterEngine", FALSE);
if (c != NULL) {
counter_engine = *((int *) c->argv[0]);
}
if (counter_engine == FALSE) {
return 0;
}
c = find_config(main_server->conf, CONF_PARAM, "CounterLog", FALSE);
if (c != NULL) {
const char *path = c->argv[0];
if (strcasecmp(path, "none") != 0) {
int res, xerrno;
PRIVS_ROOT
res = pr_log_openfile(path, &counter_logfd, 0660);
xerrno = errno;
PRIVS_RELINQUISH;
if (res < 0) {
pr_log_debug(DEBUG2, MOD_COUNTER_VERSION
": error opening CounterLog '%s': %s", path, strerror(xerrno));
counter_logfd = -1;
}
}
}
/* Find all CounterFile directives for this vhost, and make sure they
* have open handles. We need to do this here, and not in a POST_CMD
* PASS handler because of the need to open handles that may be outside
* of a chroot.
*/
c = find_config(main_server->conf, CONF_PARAM, "CounterFile", TRUE);
while (c != NULL) {
int xerrno = 0;
const char *area = NULL, *path;
pr_fh_t *fh;
struct counter_fh *cfh;
pr_signals_handle();
path = c->argv[0];
if (c->parent != NULL) {
if (c->parent->config_type == CONF_ANON ||
c->parent->config_type == CONF_DIR) {
area = c->parent->name;
} else {
(void) pr_log_writefile(counter_logfd, MOD_COUNTER_VERSION,
"unhandled configuration parent type (%d) for CounterFile, skipping",
c->parent->config_type);
c = find_config_next(c, c->next, CONF_PARAM, "CounterFile", TRUE);
continue;
}
} else {
/* Toplevel CounterFile directive, in "server config" or <VirtualHost>
* sections.
*/
area = "/";
}
PRIVS_ROOT
fh = pr_fsio_open(path, O_RDWR|O_CREAT);
xerrno = errno;
PRIVS_RELINQUISH
if (fh == NULL) {
pr_log_debug(DEBUG1, MOD_COUNTER_VERSION
": error opening CounterFile '%s': %s", path, strerror(xerrno));
counter_engine = FALSE;
if (counter_fhs != NULL) {
for (cfh = (struct counter_fh *) counter_fhs->xas_list; cfh;
cfh = cfh->next) {
(void) pr_fsio_close(cfh->fh);
}
}
return 0;
}
(void) pr_log_writefile(counter_logfd, MOD_COUNTER_VERSION,
"opened CounterFile '%s'", path);
if (counter_fhs == NULL) {
counter_fhs = xaset_create(counter_pool, NULL);
}
cfh = pcalloc(counter_pool, sizeof(struct counter_fh));
/* Ignore any trailing slash. */
cfh->arealen = strlen(area);
if (cfh->arealen > 1 &&
area[cfh->arealen-1] == '/') {
cfh->arealen--;
}
cfh->area = pstrndup(counter_pool, area, cfh->arealen);
/* Mark any areas that use glob(3) characters. */
if (strpbrk(cfh->area, "[*?") != NULL) {
cfh->isglob = TRUE;
}
cfh->fh = fh;
xaset_insert(counter_fhs, (xasetmember_t *) cfh);
c = find_config_next(c, c->next, CONF_PARAM, "CounterFile", TRUE);
}
if (counter_fhs == NULL) {
(void) pr_log_writefile(counter_logfd, MOD_COUNTER_VERSION,
"no CounterFiles configured, disabling module");
counter_engine = FALSE;
return 0;
}
pr_event_register(&counter_module, "core.exit", counter_exit_ev, NULL);
/* If mod_vroot is present, we need to do a little more magic to counter
* the mod_vroot magic.
*/
if (pr_module_exists("mod_vroot.c") == TRUE) {
pr_event_register(&counter_module, "core.chroot", counter_chroot_ev, NULL);
}
return 0;
}
conn_t *pr_ipbind_get_listening_conn(server_rec *server, pr_netaddr_t *addr,
unsigned int port) {
conn_t *l;
pool *p;
struct listener_rec *lr;
if (listening_conn_list) {
for (lr = (struct listener_rec *) listening_conn_list->xas_list; lr;
lr = lr->next) {
int use_elt = FALSE;
pr_signals_handle();
if (addr != NULL &&
lr->addr != NULL) {
const char *lr_ipstr = NULL;
lr_ipstr = pr_netaddr_get_ipstr(lr->addr);
/* Note: lr_ipstr should never be null. If it is, it means that
* the lr->addr object never had its IP address resolved/stashed,
* and in attempting to do, getnameinfo(3) failed for some reason.
*
* The IP address on which it's listening, if not available via
* lr->addr, should thus be available via lr->conn->local_addr.
*/
if (lr_ipstr == NULL &&
lr->conn != NULL) {
lr_ipstr = pr_netaddr_get_ipstr(lr->conn->local_addr);
}
if (lr_ipstr != NULL) {
if (strcmp(pr_netaddr_get_ipstr(addr), lr_ipstr) == 0 &&
port == lr->port) {
use_elt = TRUE;
}
}
} else if (addr == NULL &&
port == lr->port) {
use_elt = TRUE;
}
if (use_elt) {
lr->claimed = TRUE;
return lr->conn;
}
}
}
if (listening_conn_pool == NULL) {
listening_conn_pool = make_sub_pool(permanent_pool);
pr_pool_tag(listening_conn_pool, "Listening Connection Pool");
listening_conn_list = xaset_create(listening_conn_pool, NULL);
}
p = make_sub_pool(listening_conn_pool);
pr_pool_tag(p, "Listening conn subpool");
l = pr_inet_create_conn(p, -1, addr, port, FALSE);
if (l == NULL) {
return NULL;
}
/* Inform any interested listeners that this socket was opened. */
pr_inet_generate_socket_event("core.ctrl-listen", server, l->local_addr,
l->listen_fd);
lr = pcalloc(p, sizeof(struct listener_rec));
lr->pool = p;
lr->conn = l;
lr->addr = pr_netaddr_dup(p, addr);
if (lr->addr == NULL &&
errno != EINVAL) {
return NULL;
}
lr->port = port;
lr->claimed = TRUE;
xaset_insert(listening_conn_list, (xasetmember_t *) lr);
return l;
}