void
control_close(int fd, struct control_sock *cs)
{
struct ctl_conn *c;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_close: fd %d: not found", fd);
return;
}
msgbuf_clear(&c->iev.ibuf.w);
TAILQ_REMOVE(&ctl_conns, c, entry);
event_del(&c->iev.ev);
close(c->iev.ibuf.fd);
/* Some file descriptors are available again. */
if (evtimer_pending(&cs->cs_evt, NULL)) {
evtimer_del(&cs->cs_evt);
event_add(&cs->cs_ev, NULL);
}
npppd_ctl_destroy(c->ctx);
free(c);
}
void
control_close(int fd)
{
struct ctl_conn *c;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_close: fd %d: not found", fd);
return;
}
msgbuf_clear(&c->iev.ibuf.w);
TAILQ_REMOVE(&ctl_conns, c, entry);
event_del(&c->iev.ev);
close(c->iev.ibuf.fd);
free(c);
accept_unpause();
}
static void
control_imsg(struct imsgev *iev, struct imsg *imsg)
{
struct ctl_conn *c;
char *key;
struct stat_value val;
if (iev->proc == PROC_SMTP) {
switch (imsg->hdr.type) {
case IMSG_SMTP_ENQUEUE:
c = control_connbyfd(imsg->hdr.peerid);
if (c == NULL)
return;
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0,
imsg->fd, NULL, 0);
return;
}
}
switch (imsg->hdr.type) {
case IMSG_STAT_INCREMENT:
memmove(&val, imsg->data, sizeof (val));
key = (char*)imsg->data + sizeof (val);
if (stat_backend)
stat_backend->increment(key, val.u.counter);
return;
case IMSG_STAT_DECREMENT:
memmove(&val, imsg->data, sizeof (val));
key = (char*)imsg->data + sizeof (val);
if (stat_backend)
stat_backend->decrement(key, val.u.counter);
return;
case IMSG_STAT_SET:
memmove(&val, imsg->data, sizeof (val));
key = (char*)imsg->data + sizeof (val);
if (stat_backend)
stat_backend->set(key, &val);
return;
}
errx(1, "control_imsg: unexpected %s imsg",
imsg_to_str(imsg->hdr.type));
}
void
control_close(int fd)
{
struct ctl_conn *c;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_close: fd %d: not found", fd);
return;
}
TAILQ_REMOVE(&ctl_conns, c, entry);
event_del(&c->iev.ev);
imsg_clear(&c->iev.ibuf);
close(fd);
free(c);
if (stat_decrement(STATS_CONTROL_SESSION) < env->sc_maxconn &&
!event_pending(&control_state.ev, EV_READ, NULL)) {
log_warnx("re-enabling ctl connections");
event_add(&control_state.ev, NULL);
}
}
void
control_imsg(struct imsgev *iev, struct imsg *imsg)
{
struct ctl_conn *c;
log_imsg(PROC_CONTROL, iev->proc, imsg);
if (iev->proc == PROC_SMTP) {
switch (imsg->hdr.type) {
case IMSG_SMTP_ENQUEUE:
c = control_connbyfd(imsg->hdr.peerid);
if (c == NULL)
return;
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0,
imsg->fd, NULL, 0);
return;
}
}
errx(1, "control_imsg: unexpected %s imsg",
imsg_to_str(imsg->hdr.type));
}
void
control_close(int fd)
{
struct ctl_conn *c;
if ((c = control_connbyfd(fd)) == NULL) {
log_warnx("%s: fd %d: not found", __func__, fd);
return;
}
msgbuf_clear(&c->iev.ibuf.w);
TAILQ_REMOVE(&ctl_conns, c, entry);
event_del(&c->iev.ev);
close(c->iev.ibuf.fd);
/* Some file descriptors are available again. */
if (evtimer_pending(&control_state.evt, NULL)) {
evtimer_del(&control_state.evt);
event_add(&control_state.ev, NULL);
}
free(c);
}
/* ARGSUSED */
void
control_dispatch_imsg(int fd, short event, void *bula)
{
struct ctl_conn *c;
struct imsg imsg;
ssize_t n;
unsigned int ifidx;
int verbose;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_dispatch_imsg: fd %d: not found", fd);
return;
}
if (event & EV_READ) {
if ((n = imsg_read(&c->iev.ibuf)) == -1 || n == 0) {
control_close(fd);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) == -1) {
control_close(fd);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd);
return;
}
if (n == 0)
break;
switch (imsg.hdr.type) {
case IMSG_CTL_FIB_COUPLE:
case IMSG_CTL_FIB_DECOUPLE:
ospfe_fib_update(imsg.hdr.type);
/* FALLTHROUGH */
case IMSG_CTL_FIB_RELOAD:
case IMSG_CTL_RELOAD:
c->iev.ibuf.pid = imsg.hdr.pid;
ospfe_imsg_compose_parent(imsg.hdr.type, 0, NULL, 0);
break;
case IMSG_CTL_KROUTE:
case IMSG_CTL_KROUTE_ADDR:
case IMSG_CTL_IFINFO:
c->iev.ibuf.pid = imsg.hdr.pid;
ospfe_imsg_compose_parent(imsg.hdr.type, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
break;
case IMSG_CTL_SHOW_INTERFACE:
if (imsg.hdr.len == IMSG_HEADER_SIZE +
sizeof(ifidx)) {
memcpy(&ifidx, imsg.data, sizeof(ifidx));
ospfe_iface_ctl(c, ifidx);
imsg_compose_event(&c->iev, IMSG_CTL_END, 0,
0, -1, NULL, 0);
}
break;
case IMSG_CTL_SHOW_DATABASE:
case IMSG_CTL_SHOW_DB_EXT:
case IMSG_CTL_SHOW_DB_NET:
case IMSG_CTL_SHOW_DB_RTR:
case IMSG_CTL_SHOW_DB_SELF:
case IMSG_CTL_SHOW_DB_SUM:
case IMSG_CTL_SHOW_DB_ASBR:
case IMSG_CTL_SHOW_DB_OPAQ:
case IMSG_CTL_SHOW_RIB:
case IMSG_CTL_SHOW_SUM:
c->iev.ibuf.pid = imsg.hdr.pid;
ospfe_imsg_compose_rde(imsg.hdr.type, 0, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
break;
case IMSG_CTL_SHOW_NBR:
ospfe_nbr_ctl(c);
break;
case IMSG_CTL_LOG_VERBOSE:
if (imsg.hdr.len != IMSG_HEADER_SIZE +
sizeof(verbose))
break;
/* forward to other processes */
ospfe_imsg_compose_parent(imsg.hdr.type, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
ospfe_imsg_compose_rde(imsg.hdr.type, 0, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
memcpy(&verbose, imsg.data, sizeof(verbose));
log_verbose(verbose);
break;
default:
log_debug("control_dispatch_imsg: "
"error handling imsg %d", imsg.hdr.type);
break;
}
imsg_free(&imsg);
}
imsg_event_add(&c->iev);
}
/* ARGSUSED */
void
control_dispatch_imsg(int fd, short event, void *arg)
{
struct control_sock *cs = arg;
struct iked *env = cs->cs_env;
struct ctl_conn *c;
struct imsg imsg;
int n, v;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("%s: fd %d: not found", __func__, fd);
return;
}
if (event & EV_READ) {
if ((n = imsg_read(&c->iev.ibuf)) == -1 || n == 0) {
control_close(fd, cs);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) <= 0 && errno != EAGAIN) {
control_close(fd, cs);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd, cs);
return;
}
if (n == 0)
break;
control_imsg_forward(&imsg);
switch (imsg.hdr.type) {
case IMSG_CTL_NOTIFY:
if (c->flags & CTL_CONN_NOTIFY) {
log_debug("%s: "
"client requested notify more than once",
__func__);
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
break;
}
c->flags |= CTL_CONN_NOTIFY;
break;
case IMSG_CTL_VERBOSE:
IMSG_SIZE_CHECK(&imsg, &v);
memcpy(&v, imsg.data, sizeof(v));
log_verbose(v);
proc_forward_imsg(&env->sc_ps, &imsg, PROC_PARENT, -1);
proc_forward_imsg(&env->sc_ps, &imsg, PROC_IKEV2, -1);
proc_forward_imsg(&env->sc_ps, &imsg, PROC_IKEV1, -1);
break;
case IMSG_CTL_RELOAD:
case IMSG_CTL_RESET:
case IMSG_CTL_COUPLE:
case IMSG_CTL_DECOUPLE:
case IMSG_CTL_ACTIVE:
case IMSG_CTL_PASSIVE:
proc_forward_imsg(&env->sc_ps, &imsg, PROC_PARENT, -1);
break;
default:
log_debug("%s: error handling imsg %d",
__func__, imsg.hdr.type);
break;
}
imsg_free(&imsg);
}
imsg_event_add(&c->iev);
}
/* ARGSUSED */
void
control_dispatch_ext(int fd, short event, void *arg)
{
struct ctl_conn *c;
struct imsg imsg;
int n;
uid_t euid;
gid_t egid;
if (getpeereid(fd, &euid, &egid) == -1)
fatal("getpeereid");
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_dispatch_ext: fd %d: not found", fd);
return;
}
if (event & EV_READ) {
if ((n = imsg_read(&c->iev.ibuf)) == -1 || n == 0) {
control_close(fd);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) < 0) {
control_close(fd);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd);
return;
}
if (n == 0)
break;
switch (imsg.hdr.type) {
case IMSG_SMTP_ENQUEUE:
if (env->sc_flags & (SMTPD_SMTP_PAUSED |
SMTPD_CONFIGURING | SMTPD_EXITING)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
imsg_compose_event(env->sc_ievs[PROC_SMTP],
IMSG_SMTP_ENQUEUE, fd, 0, -1, &euid, sizeof(euid));
break;
case IMSG_STATS:
if (euid)
goto badcred;
imsg_compose_event(&c->iev, IMSG_STATS, 0, 0, -1,
env->stats, sizeof(struct stats));
break;
case IMSG_CTL_SHUTDOWN:
/* NEEDS_FIX */
log_debug("received shutdown request");
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_EXITING) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags |= SMTPD_EXITING;
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_CTL_VERBOSE: {
int verbose;
if (euid)
goto badcred;
if (IMSG_DATA_SIZE(&imsg) != sizeof(verbose))
goto badcred;
memcpy(&verbose, imsg.data, sizeof(verbose));
log_verbose(verbose);
imsg_compose_event(env->sc_ievs[PROC_PARENT], IMSG_CTL_VERBOSE,
0, 0, -1, &verbose, sizeof(verbose));
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
}
case IMSG_QUEUE_PAUSE_MDA:
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_MDA_PAUSED) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags |= SMTPD_MDA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_PAUSE_MDA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_PAUSE_MTA:
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_MTA_PAUSED) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags |= SMTPD_MTA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_PAUSE_MTA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_SMTP_PAUSE:
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_SMTP_PAUSED) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags |= SMTPD_SMTP_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_SMTP], IMSG_SMTP_PAUSE,
0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_RESUME_MDA:
if (euid)
goto badcred;
if (! (env->sc_flags & SMTPD_MDA_PAUSED)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags &= ~SMTPD_MDA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_RESUME_MDA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_RESUME_MTA:
if (euid)
goto badcred;
if (!(env->sc_flags & SMTPD_MTA_PAUSED)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags &= ~SMTPD_MTA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_RESUME_MTA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_SMTP_RESUME:
if (euid)
goto badcred;
if (!(env->sc_flags & SMTPD_SMTP_PAUSED)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
env->sc_flags &= ~SMTPD_SMTP_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_SMTP], IMSG_SMTP_RESUME,
0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_RUNNER_SCHEDULE: {
u_int64_t ullval;
if (euid)
goto badcred;
ullval = *(u_int64_t *)imsg.data;
imsg_compose_event(env->sc_ievs[PROC_RUNNER], IMSG_RUNNER_SCHEDULE,
0, 0, -1, &ullval, sizeof(ullval));
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
}
case IMSG_RUNNER_REMOVE: {
u_int64_t ullval;
if (euid)
goto badcred;
ullval = *(u_int64_t *)imsg.data;
imsg_compose_event(env->sc_ievs[PROC_RUNNER], IMSG_RUNNER_REMOVE,
0, 0, -1, &ullval, sizeof(ullval));
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
}
default:
log_debug("control_dispatch_ext: "
"error handling %s imsg",
imsg_to_str(imsg.hdr.type));
break;
}
imsg_free(&imsg);
continue;
badcred:
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
}
imsg_event_add(&c->iev);
}
/* ARGSUSED */
void
control_dispatch_imsg(int fd, short event, void *bula)
{
struct ctl_conn *c;
struct imsg imsg;
int n;
unsigned int ifidx;
int verbose;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_dispatch_imsg: fd %d: not found", fd);
return;
}
if (event & EV_READ) {
if ((n = imsg_read(&c->iev.ibuf)) == -1 || n == 0) {
control_close(fd);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) == -1 && errno != EAGAIN) {
control_close(fd);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd);
return;
}
if (n == 0)
break;
switch (imsg.hdr.type) {
case IMSG_CTL_MFC_COUPLE:
case IMSG_CTL_MFC_DECOUPLE:
case IMSG_CTL_RELOAD:
dvmrpe_imsg_compose_parent(imsg.hdr.type, 0, NULL, 0);
break;
case IMSG_CTL_SHOW_IFACE:
if (imsg.hdr.len == IMSG_HEADER_SIZE +
sizeof(ifidx)) {
memcpy(&ifidx, imsg.data, sizeof(ifidx));
dvmrpe_iface_ctl(c, ifidx);
imsg_compose_event(&c->iev, IMSG_CTL_END, 0,
0, -1, NULL, 0);
}
break;
case IMSG_CTL_SHOW_IGMP:
if (imsg.hdr.len == IMSG_HEADER_SIZE +
sizeof(ifidx)) {
memcpy(&ifidx, imsg.data, sizeof(ifidx));
dvmrpe_iface_igmp_ctl(c, ifidx);
imsg_compose_event(&c->iev, IMSG_CTL_END, 0,
0, -1, NULL, 0);
}
break;
case IMSG_CTL_SHOW_NBR:
dvmrpe_nbr_ctl(c);
break;
case IMSG_CTL_SHOW_RIB:
case IMSG_CTL_SHOW_MFC:
case IMSG_CTL_SHOW_SUM:
c->iev.ibuf.pid = imsg.hdr.pid;
dvmrpe_imsg_compose_rde(imsg.hdr.type, 0, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
break;
case IMSG_CTL_LOG_VERBOSE:
if (imsg.hdr.len != IMSG_HEADER_SIZE +
sizeof(verbose))
break;
/* forward to other processes */
dvmrpe_imsg_compose_parent(imsg.hdr.type, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
dvmrpe_imsg_compose_rde(imsg.hdr.type, 0, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
memcpy(&verbose, imsg.data, sizeof(verbose));
log_verbose(verbose);
break;
default:
log_debug("control_dispatch_imsg: "
"error handling imsg %d", imsg.hdr.type);
break;
}
imsg_free(&imsg);
}
imsg_event_add(&c->iev);
}
/* ARGSUSED */
void
control_dispatch_imsg(int fd, short event, void *arg)
{
struct control_sock *cs = (struct control_sock *)arg;
struct ctl_conn *c;
struct imsg imsg;
int n, retval;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_dispatch_imsg: fd %d: not found", fd);
return;
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) < 0) {
control_close(fd, cs);
return;
}
if (!c->iev.ibuf.w.queued)
npppd_ctl_imsg_compose(c->ctx, &c->iev.ibuf);
imsg_event_add(&c->iev);
if (!(event & EV_READ))
return;
}
if (event & EV_READ) {
if ((n = imsg_read(&c->iev.ibuf)) == -1 || n == 0) {
control_close(fd, cs);
return;
}
} else
fatalx("unknown event");
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd, cs);
return;
}
if (n == 0)
break;
if (cs->cs_restricted || (c->flags & CTL_CONN_LOCKED)) {
switch (imsg.hdr.type) {
default:
log_debug("control_dispatch_imsg: "
"client requested restricted command");
imsg_free(&imsg);
control_close(fd, cs);
return;
}
}
switch (imsg.hdr.type) {
case IMSG_CTL_NOP:
imsg_compose(&c->iev.ibuf, IMSG_CTL_OK, 0, 0, -1,
NULL, 0);
break;
case IMSG_CTL_WHO:
case IMSG_CTL_MONITOR:
case IMSG_CTL_WHO_AND_MONITOR:
if (imsg.hdr.type == IMSG_CTL_WHO)
retval = npppd_ctl_who(c->ctx);
else if (imsg.hdr.type == IMSG_CTL_MONITOR)
retval = npppd_ctl_monitor(c->ctx);
else
retval = npppd_ctl_who_and_monitor(c->ctx);
imsg_compose(&c->iev.ibuf,
(retval == 0)? IMSG_CTL_OK : IMSG_CTL_FAIL, 0, 0,
-1, NULL, 0);
break;
case IMSG_CTL_DISCONNECT:
{
struct npppd_disconnect_request *req;
struct npppd_disconnect_response res;
req = (struct npppd_disconnect_request *)imsg.data;
retval = npppd_ctl_disconnect(c->ctx,
req->ppp_id, req->count);
res.count = retval;
imsg_compose(&c->iev.ibuf, IMSG_CTL_OK, 0, 0,
-1, &res, sizeof(res));
break;
}
default:
imsg_compose(&c->iev.ibuf, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
imsg_free(&imsg);
}
if (!c->iev.ibuf.w.queued)
npppd_ctl_imsg_compose(c->ctx, &c->iev.ibuf);
imsg_event_add(&c->iev);
}
/* ARGSUSED */
static void
control_dispatch_ext(int fd, short event, void *arg)
{
struct ctl_conn *c;
struct imsg imsg;
int n, verbose;
uid_t euid;
gid_t egid;
uint64_t id;
struct stat_kv *kvp;
char *key;
struct stat_value val;
size_t len;
if (getpeereid(fd, &euid, &egid) == -1)
fatal("getpeereid");
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("control_dispatch_ext: fd %d: not found", fd);
return;
}
if (event & EV_READ) {
if ((n = imsg_read(&c->iev.ibuf)) == -1 || n == 0) {
control_close(c);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) < 0) {
control_close(c);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(c);
return;
}
if (n == 0)
break;
switch (imsg.hdr.type) {
case IMSG_SMTP_ENQUEUE:
if (env->sc_flags & (SMTPD_SMTP_PAUSED |
SMTPD_CONFIGURING | SMTPD_EXITING)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
imsg_compose_event(env->sc_ievs[PROC_SMTP],
IMSG_SMTP_ENQUEUE, fd, 0, -1, &euid, sizeof(euid));
break;
case IMSG_STATS:
if (euid)
goto badcred;
imsg_compose_event(&c->iev, IMSG_STATS, 0, 0, -1, NULL, 0);
break;
case IMSG_STATS_GET:
if (euid)
goto badcred;
kvp = imsg.data;
if (! stat_backend->iter(&kvp->iter, &key, &val))
kvp->iter = NULL;
else {
strlcpy(kvp->key, key, sizeof kvp->key);
kvp->val = val;
}
imsg_compose_event(&c->iev, IMSG_STATS_GET, 0, 0, -1,
kvp, sizeof *kvp);
break;
case IMSG_CTL_SHUTDOWN:
/* NEEDS_FIX */
log_debug("received shutdown request");
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_EXITING) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0,
-1, NULL, 0);
break;
}
env->sc_flags |= SMTPD_EXITING;
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1,
NULL, 0);
imsg_compose_event(env->sc_ievs[PROC_PARENT],
IMSG_CTL_SHUTDOWN, 0, 0, -1, NULL, 0);
break;
case IMSG_CTL_VERBOSE:
if (euid)
goto badcred;
if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(verbose))
goto badcred;
memcpy(&verbose, imsg.data, sizeof(verbose));
log_verbose(verbose);
imsg_compose_event(env->sc_ievs[PROC_PARENT], IMSG_CTL_VERBOSE,
0, 0, -1, &verbose, sizeof(verbose));
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_PAUSE_MDA:
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_MDA_PAUSED) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
log_info("mda paused");
env->sc_flags |= SMTPD_MDA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_PAUSE_MDA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_PAUSE_MTA:
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_MTA_PAUSED) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
log_info("mta paused");
env->sc_flags |= SMTPD_MTA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_PAUSE_MTA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_SMTP_PAUSE:
if (euid)
goto badcred;
if (env->sc_flags & SMTPD_SMTP_PAUSED) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
log_info("smtp paused");
env->sc_flags |= SMTPD_SMTP_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_SMTP], IMSG_SMTP_PAUSE,
0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_RESUME_MDA:
if (euid)
goto badcred;
if (! (env->sc_flags & SMTPD_MDA_PAUSED)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
log_info("mda resumed");
env->sc_flags &= ~SMTPD_MDA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_RESUME_MDA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_QUEUE_RESUME_MTA:
if (euid)
goto badcred;
if (!(env->sc_flags & SMTPD_MTA_PAUSED)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
log_info("mta resumed");
env->sc_flags &= ~SMTPD_MTA_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_QUEUE],
IMSG_QUEUE_RESUME_MTA, 0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_SMTP_RESUME:
if (euid)
goto badcred;
if (!(env->sc_flags & SMTPD_SMTP_PAUSED)) {
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
break;
}
log_info("smtp resumed");
env->sc_flags &= ~SMTPD_SMTP_PAUSED;
imsg_compose_event(env->sc_ievs[PROC_SMTP], IMSG_SMTP_RESUME,
0, 0, -1, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
break;
case IMSG_SCHEDULER_SCHEDULE:
if (euid)
goto badcred;
id = *(uint64_t *)imsg.data;
imsg_compose_event(env->sc_ievs[PROC_SCHEDULER],
IMSG_SCHEDULER_SCHEDULE, 0, 0, -1, &id, sizeof id);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1,
NULL, 0);
break;
case IMSG_SCHEDULER_REMOVE:
if (euid)
goto badcred;
id = *(uint64_t *)imsg.data;
imsg_compose_event(env->sc_ievs[PROC_SCHEDULER],
IMSG_SCHEDULER_REMOVE, 0, 0, -1, &id, sizeof id);
imsg_compose_event(&c->iev, IMSG_CTL_OK, 0, 0, -1,
NULL, 0);
break;
case IMSG_LKA_UPDATE_MAP:
if (euid)
goto badcred;
/* map name too long */
len = strlen(imsg.data);
if (len >= MAX_LINE_SIZE)
goto invalid;
imsg_compose_event(env->sc_ievs[PROC_LKA], IMSG_LKA_UPDATE_MAP,
0, 0, -1, imsg.data, len + 1);
break;
default:
log_debug("control_dispatch_ext: "
"error handling %s imsg",
imsg_to_str(imsg.hdr.type));
break;
}
imsg_free(&imsg);
continue;
badcred:
invalid:
imsg_compose_event(&c->iev, IMSG_CTL_FAIL, 0, 0, -1,
NULL, 0);
}
imsg_event_add(&c->iev);
}
/* ARGSUSED */
void
control_dispatch_imsg(int fd, short event, void *bula)
{
struct ctl_conn *c;
struct imsg imsg;
ssize_t n;
unsigned int ifidx;
int verbose;
if ((c = control_connbyfd(fd)) == NULL) {
log_warnx("%s: fd %d: not found", __func__, fd);
return;
}
if (event & EV_READ) {
if (((n = imsg_read(&c->iev.ibuf)) == -1 && errno != EAGAIN) ||
n == 0) {
control_close(fd);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) <= 0 && errno != EAGAIN) {
control_close(fd);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd);
return;
}
if (n == 0)
break;
switch (imsg.hdr.type) {
case IMSG_CTL_FIB_COUPLE:
case IMSG_CTL_FIB_DECOUPLE:
case IMSG_CTL_RELOAD:
c->iev.ibuf.pid = imsg.hdr.pid;
eigrpe_imsg_compose_parent(imsg.hdr.type, 0, NULL, 0);
break;
case IMSG_CTL_KROUTE:
case IMSG_CTL_IFINFO:
c->iev.ibuf.pid = imsg.hdr.pid;
eigrpe_imsg_compose_parent(imsg.hdr.type, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
break;
case IMSG_CTL_SHOW_INTERFACE:
if (imsg.hdr.len != IMSG_HEADER_SIZE +
sizeof(ifidx))
break;
memcpy(&ifidx, imsg.data, sizeof(ifidx));
eigrpe_iface_ctl(c, ifidx);
imsg_compose_event(&c->iev, IMSG_CTL_END, 0,
0, -1, NULL, 0);
break;
case IMSG_CTL_SHOW_TOPOLOGY:
if (imsg.hdr.len != IMSG_HEADER_SIZE +
sizeof(struct ctl_show_topology_req))
break;
c->iev.ibuf.pid = imsg.hdr.pid;
eigrpe_imsg_compose_rde(imsg.hdr.type, 0, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
break;
case IMSG_CTL_SHOW_NBR:
eigrpe_nbr_ctl(c);
break;
case IMSG_CTL_SHOW_STATS:
eigrpe_stats_ctl(c);
break;
case IMSG_CTL_CLEAR_NBR:
if (imsg.hdr.len != IMSG_HEADER_SIZE +
sizeof(struct ctl_nbr))
break;
nbr_clear_ctl(imsg.data);
break;
case IMSG_CTL_LOG_VERBOSE:
if (imsg.hdr.len != IMSG_HEADER_SIZE +
sizeof(verbose))
break;
/* forward to other processes */
eigrpe_imsg_compose_parent(imsg.hdr.type, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
eigrpe_imsg_compose_rde(imsg.hdr.type, 0, imsg.hdr.pid,
imsg.data, imsg.hdr.len - IMSG_HEADER_SIZE);
memcpy(&verbose, imsg.data, sizeof(verbose));
log_verbose(verbose);
break;
default:
log_debug("%s: error handling imsg %d", __func__,
imsg.hdr.type);
break;
}
imsg_free(&imsg);
}
imsg_event_add(&c->iev);
}
/* ARGSUSED */
void
control_dispatch_imsg(int fd, short event, void *arg)
{
struct control_sock *cs = arg;
struct ctl_conn *c;
struct imsg imsg;
struct ctl_id id;
int n;
int verbose;
struct relayd *env = cs->cs_env;
if ((c = control_connbyfd(fd)) == NULL) {
log_warn("%s: fd %d not found", __func__, fd);
return;
}
if (event & EV_READ) {
if (((n = imsg_read(&c->iev.ibuf)) == -1 && errno != EAGAIN) ||
n == 0) {
control_close(fd, cs);
return;
}
}
if (event & EV_WRITE) {
if (msgbuf_write(&c->iev.ibuf.w) <= 0 && errno != EAGAIN) {
control_close(fd, cs);
return;
}
}
for (;;) {
if ((n = imsg_get(&c->iev.ibuf, &imsg)) == -1) {
control_close(fd, cs);
return;
}
if (n == 0)
break;
if (c->waiting) {
log_debug("%s: unexpected imsg %d",
__func__, imsg.hdr.type);
imsg_free(&imsg);
control_close(fd, cs);
return;
}
switch (imsg.hdr.type) {
case IMSG_CTL_SHOW_SUM:
show(c);
break;
case IMSG_CTL_SESSION:
show_sessions(c);
break;
case IMSG_CTL_RDR_DISABLE:
if (imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(id))
fatalx("invalid imsg header len");
memcpy(&id, imsg.data, sizeof(id));
if (disable_rdr(c, &id))
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
else {
memcpy(imsg.data, &id, sizeof(id));
control_imsg_forward(&imsg);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
}
break;
case IMSG_CTL_RDR_ENABLE:
if (imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(id))
fatalx("invalid imsg header len");
memcpy(&id, imsg.data, sizeof(id));
if (enable_rdr(c, &id))
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
else {
memcpy(imsg.data, &id, sizeof(id));
control_imsg_forward(&imsg);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
}
break;
case IMSG_CTL_TABLE_DISABLE:
if (imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(id))
fatalx("invalid imsg header len");
memcpy(&id, imsg.data, sizeof(id));
if (disable_table(c, &id))
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
else {
memcpy(imsg.data, &id, sizeof(id));
control_imsg_forward(&imsg);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
}
break;
case IMSG_CTL_TABLE_ENABLE:
if (imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(id))
fatalx("invalid imsg header len");
memcpy(&id, imsg.data, sizeof(id));
if (enable_table(c, &id))
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
else {
memcpy(imsg.data, &id, sizeof(id));
control_imsg_forward(&imsg);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
}
break;
case IMSG_CTL_HOST_DISABLE:
if (imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(id))
fatalx("invalid imsg header len");
memcpy(&id, imsg.data, sizeof(id));
if (disable_host(c, &id, NULL))
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
else {
memcpy(imsg.data, &id, sizeof(id));
control_imsg_forward(&imsg);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
}
break;
case IMSG_CTL_HOST_ENABLE:
if (imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(id))
fatalx("invalid imsg header len");
memcpy(&id, imsg.data, sizeof(id));
if (enable_host(c, &id, NULL))
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
else {
memcpy(imsg.data, &id, sizeof(id));
control_imsg_forward(&imsg);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
}
break;
case IMSG_CTL_SHUTDOWN:
case IMSG_CTL_RELOAD:
proc_forward_imsg(env->sc_ps, &imsg, PROC_PARENT, -1);
break;
case IMSG_CTL_POLL:
proc_compose(env->sc_ps, PROC_HCE, IMSG_CTL_POLL, NULL, 0);
imsg_compose_event(&c->iev, IMSG_CTL_OK,
0, 0, -1, NULL, 0);
break;
case IMSG_CTL_NOTIFY:
if (c->flags & CTL_CONN_NOTIFY) {
log_debug("%s: "
"client requested notify more than once",
__func__);
imsg_compose_event(&c->iev, IMSG_CTL_FAIL,
0, 0, -1, NULL, 0);
break;
}
c->flags |= CTL_CONN_NOTIFY;
break;
case IMSG_CTL_VERBOSE:
IMSG_SIZE_CHECK(&imsg, &verbose);
memcpy(&verbose, imsg.data, sizeof(verbose));
proc_forward_imsg(env->sc_ps, &imsg, PROC_PARENT, -1);
proc_forward_imsg(env->sc_ps, &imsg, PROC_HCE, -1);
proc_forward_imsg(env->sc_ps, &imsg, PROC_RELAY, -1);
memcpy(imsg.data, &verbose, sizeof(verbose));
control_imsg_forward(&imsg);
log_verbose(verbose);
break;
default:
log_debug("%s: error handling imsg %d",
__func__, imsg.hdr.type);
break;
}
imsg_free(&imsg);
}
imsg_event_add(&c->iev);
}
