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-rw-r--r--smtpd/control.c817
1 files changed, 0 insertions, 817 deletions
diff --git a/smtpd/control.c b/smtpd/control.c
deleted file mode 100644
index 0e35bbd1..00000000
--- a/smtpd/control.c
+++ /dev/null
@@ -1,817 +0,0 @@
-/* $OpenBSD: control.c,v 1.123 2018/05/31 21:06:12 gilles Exp $ */
-
-/*
- * Copyright (c) 2012 Gilles Chehade <gilles@poolp.org>
- * Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org>
- * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "includes.h"
-
-#include <sys/types.h>
-#include <sys/queue.h>
-#include <sys/tree.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#include <err.h>
-#include <errno.h>
-#include <event.h>
-#include <fcntl.h>
-#include <grp.h> /* needed for setgroups */
-#include <imsg.h>
-#include <pwd.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-#include <limits.h>
-
-#include "smtpd.h"
-#include "log.h"
-
-#define CONTROL_BACKLOG 5
-
-struct ctl_conn {
- uint32_t id;
- uint8_t flags;
-#define CTL_CONN_NOTIFY 0x01
- struct mproc mproc;
- uid_t euid;
- gid_t egid;
-};
-
-struct {
- struct event ev;
- int fd;
-} control_state;
-
-static void control_imsg(struct mproc *, struct imsg *);
-static void control_shutdown(void);
-static void control_listen(void);
-static void control_accept(int, short, void *);
-static void control_close(struct ctl_conn *);
-static void control_dispatch_ext(struct mproc *, struct imsg *);
-static void control_digest_update(const char *, size_t, int);
-static void control_broadcast_verbose(int, int);
-
-static struct stat_backend *stat_backend = NULL;
-extern const char *backend_stat;
-
-static uint64_t connid = 0;
-static struct tree ctl_conns;
-static struct tree ctl_count;
-static struct stat_digest digest;
-
-#define CONTROL_FD_RESERVE 5
-#define CONTROL_MAXCONN_PER_CLIENT 32
-
-static void
-control_imsg(struct mproc *p, struct imsg *imsg)
-{
- struct ctl_conn *c;
- struct stat_value val;
- struct msg m;
- const char *key;
- const void *data;
- size_t sz;
-
- if (imsg == NULL) {
- if (p->proc != PROC_CLIENT)
- control_shutdown();
- return;
- }
-
- switch (imsg->hdr.type) {
- case IMSG_CTL_OK:
- case IMSG_CTL_FAIL:
- case IMSG_CTL_LIST_MESSAGES:
- case IMSG_CTL_LIST_ENVELOPES:
- case IMSG_CTL_DISCOVER_EVPID:
- case IMSG_CTL_DISCOVER_MSGID:
- case IMSG_CTL_MTA_SHOW_HOSTS:
- case IMSG_CTL_MTA_SHOW_RELAYS:
- case IMSG_CTL_MTA_SHOW_ROUTES:
- case IMSG_CTL_MTA_SHOW_HOSTSTATS:
- case IMSG_CTL_MTA_SHOW_BLOCK:
- c = tree_get(&ctl_conns, imsg->hdr.peerid);
- if (c == NULL)
- return;
- imsg->hdr.peerid = 0;
- m_forward(&c->mproc, imsg);
- return;
-
- case IMSG_CTL_SMTP_SESSION:
- c = tree_get(&ctl_conns, imsg->hdr.peerid);
- if (c == NULL)
- return;
- m_compose(&c->mproc, IMSG_CTL_OK, 0, 0, imsg->fd, NULL, 0);
- return;
-
- case IMSG_STAT_INCREMENT:
- m_msg(&m, imsg);
- m_get_string(&m, &key);
- m_get_data(&m, &data, &sz);
- m_end(&m);
- if (sz != sizeof(val))
- fatalx("control: IMSG_STAT_INCREMENT size mismatch");
- memmove(&val, data, sz);
- if (stat_backend)
- stat_backend->increment(key, val.u.counter);
- control_digest_update(key, val.u.counter, 1);
- return;
-
- case IMSG_STAT_DECREMENT:
- m_msg(&m, imsg);
- m_get_string(&m, &key);
- m_get_data(&m, &data, &sz);
- m_end(&m);
- if (sz != sizeof(val))
- fatalx("control: IMSG_STAT_DECREMENT size mismatch");
- memmove(&val, data, sz);
- if (stat_backend)
- stat_backend->decrement(key, val.u.counter);
- control_digest_update(key, val.u.counter, 0);
- return;
-
- case IMSG_STAT_SET:
- m_msg(&m, imsg);
- m_get_string(&m, &key);
- m_get_data(&m, &data, &sz);
- m_end(&m);
- if (sz != sizeof(val))
- fatalx("control: IMSG_STAT_SET size mismatch");
- memmove(&val, data, sz);
- if (stat_backend)
- stat_backend->set(key, &val);
- return;
- }
-
- errx(1, "control_imsg: unexpected %s imsg",
- imsg_to_str(imsg->hdr.type));
-}
-
-int
-control_create_socket(void)
-{
- struct sockaddr_un s_un;
- int fd;
- mode_t old_umask;
-
- if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
- fatal("control: socket");
-
- memset(&s_un, 0, sizeof(s_un));
- s_un.sun_family = AF_UNIX;
- if (strlcpy(s_un.sun_path, SMTPD_SOCKET,
- sizeof(s_un.sun_path)) >= sizeof(s_un.sun_path))
- fatal("control: socket name too long");
-
- if (connect(fd, (struct sockaddr *)&s_un, sizeof(s_un)) == 0)
- fatalx("control socket already listening");
-
- if (unlink(SMTPD_SOCKET) == -1)
- if (errno != ENOENT)
- fatal("control: cannot unlink socket");
-
- old_umask = umask(S_IXUSR|S_IXGRP|S_IWOTH|S_IROTH|S_IXOTH);
- if (bind(fd, (struct sockaddr *)&s_un, sizeof(s_un)) == -1) {
- (void)umask(old_umask);
- fatal("control: bind");
- }
- (void)umask(old_umask);
-
- if (chmod(SMTPD_SOCKET,
- S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) == -1) {
- (void)unlink(SMTPD_SOCKET);
- fatal("control: chmod");
- }
-
- io_set_nonblocking(fd);
- control_state.fd = fd;
-
- return fd;
-}
-
-int
-control(void)
-{
- struct passwd *pw;
-
- purge_config(PURGE_EVERYTHING);
-
- if ((pw = getpwnam(SMTPD_USER)) == NULL)
- fatalx("unknown user " SMTPD_USER);
-
- stat_backend = env->sc_stat;
- stat_backend->init();
-
- if (chroot(PATH_CHROOT) == -1)
- fatal("control: chroot");
- if (chdir("/") == -1)
- fatal("control: chdir(\"/\")");
-
- config_process(PROC_CONTROL);
-
- if (setgroups(1, &pw->pw_gid) ||
- setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) ||
- setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid))
- fatal("control: cannot drop privileges");
-
- imsg_callback = control_imsg;
- event_init();
-
- signal(SIGINT, SIG_IGN);
- signal(SIGTERM, SIG_IGN);
- signal(SIGPIPE, SIG_IGN);
- signal(SIGHUP, SIG_IGN);
-
- tree_init(&ctl_conns);
- tree_init(&ctl_count);
-
- memset(&digest, 0, sizeof digest);
- digest.startup = time(NULL);
-
- config_peer(PROC_SCHEDULER);
- config_peer(PROC_QUEUE);
- config_peer(PROC_PARENT);
- config_peer(PROC_LKA);
- config_peer(PROC_PONY);
- config_peer(PROC_CA);
-
- control_listen();
-
-#if HAVE_PLEDGE
- if (pledge("stdio unix recvfd sendfd", NULL) == -1)
- err(1, "pledge");
-#endif
-
- event_dispatch();
- fatalx("exited event loop");
-
- return (0);
-}
-
-static void
-control_shutdown(void)
-{
- log_debug("debug: control agent exiting");
- _exit(0);
-}
-
-static void
-control_listen(void)
-{
- if (listen(control_state.fd, CONTROL_BACKLOG) == -1)
- fatal("control_listen");
-
- event_set(&control_state.ev, control_state.fd, EV_READ|EV_PERSIST,
- control_accept, NULL);
- event_add(&control_state.ev, NULL);
-}
-
-/* ARGSUSED */
-static void
-control_accept(int listenfd, short event, void *arg)
-{
- int connfd;
- socklen_t len;
- struct sockaddr_un s_un;
- struct ctl_conn *c;
- size_t *count;
- uid_t euid;
- gid_t egid;
-
-#if defined(HAVE_GETDTABLESIZE) && defined(HAVE_GETDTABLECOUNT)
- if (getdtablesize() - getdtablecount() < CONTROL_FD_RESERVE)
- goto pause;
-#else
- if (available_fds(CONTROL_FD_RESERVE))
- goto pause;
-#endif
-
- len = sizeof(s_un);
- if ((connfd = accept(listenfd, (struct sockaddr *)&s_un, &len)) == -1) {
- if (errno == ENFILE || errno == EMFILE)
- goto pause;
- if (errno == EINTR || errno == EWOULDBLOCK ||
- errno == ECONNABORTED)
- return;
- fatal("control_accept: accept");
- }
-
- io_set_nonblocking(connfd);
-
- if (getpeereid(connfd, &euid, &egid) == -1)
- fatal("getpeereid");
-
- count = tree_get(&ctl_count, euid);
- if (count == NULL) {
- count = xcalloc(1, sizeof *count);
- tree_xset(&ctl_count, euid, count);
- }
-
- if (*count == CONTROL_MAXCONN_PER_CLIENT) {
- close(connfd);
- log_warnx("warn: too many connections to control socket "
- "from user with uid %lu", (unsigned long int)euid);
- return;
- }
- (*count)++;
-
- do {
- ++connid;
- } while (tree_get(&ctl_conns, connid));
-
- c = xcalloc(1, sizeof(*c));
- c->euid = euid;
- c->egid = egid;
- c->id = connid;
- c->mproc.proc = PROC_CLIENT;
- c->mproc.handler = control_dispatch_ext;
- c->mproc.data = c;
- if ((c->mproc.name = strdup(proc_title(c->mproc.proc))) == NULL)
- fatal("strdup");
- mproc_init(&c->mproc, connfd);
- mproc_enable(&c->mproc);
- tree_xset(&ctl_conns, c->id, c);
-
- stat_backend->increment("control.session", 1);
- return;
-
-pause:
- log_warnx("warn: ctl client limit hit, disabling new connections");
- event_del(&control_state.ev);
-}
-
-static void
-control_close(struct ctl_conn *c)
-{
- size_t *count;
-
- count = tree_xget(&ctl_count, c->euid);
- (*count)--;
- if (*count == 0) {
- tree_xpop(&ctl_count, c->euid);
- free(count);
- }
- tree_xpop(&ctl_conns, c->id);
- mproc_clear(&c->mproc);
- free(c);
-
- stat_backend->decrement("control.session", 1);
-
-#if defined(HAVE_GETDTABLESIZE) && defined(HAVE_GETDTABLECOUNT)
- if (getdtablesize() - getdtablecount() < CONTROL_FD_RESERVE)
- return;
-#else
- if (available_fds(CONTROL_FD_RESERVE))
- return;
-#endif
-
- if (!event_pending(&control_state.ev, EV_READ, NULL)) {
- log_warnx("warn: re-enabling ctl connections");
- event_add(&control_state.ev, NULL);
- }
-}
-
-static void
-control_digest_update(const char *key, size_t value, int incr)
-{
- size_t *p;
-
- p = NULL;
-
- if (!strcmp(key, "smtp.session")) {
- if (incr)
- p = &digest.clt_connect;
- else
- digest.clt_disconnect += value;
- }
- else if (!strcmp(key, "scheduler.envelope")) {
- if (incr)
- p = &digest.evp_enqueued;
- else
- digest.evp_dequeued += value;
- }
- else if (!strcmp(key, "scheduler.envelope.expired"))
- p = &digest.evp_expired;
- else if (!strcmp(key, "scheduler.envelope.removed"))
- p = &digest.evp_removed;
- else if (!strcmp(key, "scheduler.delivery.ok"))
- p = &digest.dlv_ok;
- else if (!strcmp(key, "scheduler.delivery.permfail"))
- p = &digest.dlv_permfail;
- else if (!strcmp(key, "scheduler.delivery.tempfail"))
- p = &digest.dlv_tempfail;
- else if (!strcmp(key, "scheduler.delivery.loop"))
- p = &digest.dlv_loop;
-
- else if (!strcmp(key, "queue.bounce"))
- p = &digest.evp_bounce;
-
- if (p) {
- if (incr)
- *p = *p + value;
- else
- *p = *p - value;
- }
-}
-
-/* ARGSUSED */
-static void
-control_dispatch_ext(struct mproc *p, struct imsg *imsg)
-{
- struct sockaddr_storage ss;
- struct ctl_conn *c;
- int v;
- struct stat_kv *kvp;
- char *key;
- struct stat_value val;
- size_t len;
- uint64_t evpid;
- uint32_t msgid;
-
- c = p->data;
-
- if (imsg == NULL) {
- control_close(c);
- return;
- }
-
- if (imsg->hdr.peerid != IMSG_VERSION) {
- m_compose(p, IMSG_CTL_FAIL, IMSG_VERSION, 0, -1, NULL, 0);
- return;
- }
-
- switch (imsg->hdr.type) {
- case IMSG_CTL_SMTP_SESSION:
- if (env->sc_flags & SMTPD_SMTP_PAUSED) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- m_compose(p_pony, IMSG_CTL_SMTP_SESSION, c->id, 0, -1,
- &c->euid, sizeof(c->euid));
- return;
-
- case IMSG_CTL_GET_DIGEST:
- if (c->euid)
- goto badcred;
- digest.timestamp = time(NULL);
- m_compose(p, IMSG_CTL_GET_DIGEST, 0, 0, -1, &digest, sizeof digest);
- return;
-
- case IMSG_CTL_GET_STATS:
- if (c->euid)
- goto badcred;
- kvp = imsg->data;
- if (!stat_backend->iter(&kvp->iter, &key, &val))
- kvp->iter = NULL;
- else {
- (void)strlcpy(kvp->key, key, sizeof kvp->key);
- kvp->val = val;
- }
- m_compose(p, IMSG_CTL_GET_STATS, 0, 0, -1, kvp, sizeof *kvp);
- return;
-
- case IMSG_CTL_VERBOSE:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof(v))
- goto badcred;
-
- memcpy(&v, imsg->data, sizeof(v));
- log_trace_verbose(v);
-
- control_broadcast_verbose(IMSG_CTL_VERBOSE, v);
-
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_TRACE_ENABLE:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof(v))
- goto badcred;
-
- memcpy(&v, imsg->data, sizeof(v));
- tracing |= v;
- log_trace_verbose(tracing);
-
- control_broadcast_verbose(IMSG_CTL_VERBOSE, tracing);
-
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_TRACE_DISABLE:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof(v))
- goto badcred;
-
- memcpy(&v, imsg->data, sizeof(v));
- tracing &= ~v;
- log_trace_verbose(tracing);
-
- control_broadcast_verbose(IMSG_CTL_VERBOSE, tracing);
-
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_PROFILE_ENABLE:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof(v))
- goto badcred;
-
- memcpy(&v, imsg->data, sizeof(v));
- profiling |= v;
-
- control_broadcast_verbose(IMSG_CTL_PROFILE, profiling);
-
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_PROFILE_DISABLE:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof(v))
- goto badcred;
-
- memcpy(&v, imsg->data, sizeof(v));
- profiling &= ~v;
-
- control_broadcast_verbose(IMSG_CTL_PROFILE, profiling);
-
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_PAUSE_EVP:
- if (c->euid)
- goto badcred;
-
- imsg->hdr.peerid = c->id;
- m_forward(p_scheduler, imsg);
- return;
-
- case IMSG_CTL_PAUSE_MDA:
- if (c->euid)
- goto badcred;
-
- if (env->sc_flags & SMTPD_MDA_PAUSED) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- log_info("info: mda paused");
- env->sc_flags |= SMTPD_MDA_PAUSED;
- m_compose(p_queue, IMSG_CTL_PAUSE_MDA, 0, 0, -1, NULL, 0);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_PAUSE_MTA:
- if (c->euid)
- goto badcred;
-
- if (env->sc_flags & SMTPD_MTA_PAUSED) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- log_info("info: mta paused");
- env->sc_flags |= SMTPD_MTA_PAUSED;
- m_compose(p_queue, IMSG_CTL_PAUSE_MTA, 0, 0, -1, NULL, 0);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_PAUSE_SMTP:
- if (c->euid)
- goto badcred;
-
- if (env->sc_flags & SMTPD_SMTP_PAUSED) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- log_info("info: smtp paused");
- env->sc_flags |= SMTPD_SMTP_PAUSED;
- m_compose(p_pony, IMSG_CTL_PAUSE_SMTP, 0, 0, -1, NULL, 0);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_RESUME_EVP:
- if (c->euid)
- goto badcred;
-
- imsg->hdr.peerid = c->id;
- m_forward(p_scheduler, imsg);
- return;
-
- case IMSG_CTL_RESUME_MDA:
- if (c->euid)
- goto badcred;
-
- if (!(env->sc_flags & SMTPD_MDA_PAUSED)) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- log_info("info: mda resumed");
- env->sc_flags &= ~SMTPD_MDA_PAUSED;
- m_compose(p_queue, IMSG_CTL_RESUME_MDA, 0, 0, -1, NULL, 0);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_RESUME_MTA:
- if (c->euid)
- goto badcred;
-
- if (!(env->sc_flags & SMTPD_MTA_PAUSED)) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- log_info("info: mta resumed");
- env->sc_flags &= ~SMTPD_MTA_PAUSED;
- m_compose(p_queue, IMSG_CTL_RESUME_MTA, 0, 0, -1, NULL, 0);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_RESUME_SMTP:
- if (c->euid)
- goto badcred;
-
- if (!(env->sc_flags & SMTPD_SMTP_PAUSED)) {
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
- return;
- }
- log_info("info: smtp resumed");
- env->sc_flags &= ~SMTPD_SMTP_PAUSED;
- m_forward(p_pony, imsg);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_RESUME_ROUTE:
- if (c->euid)
- goto badcred;
-
- m_forward(p_pony, imsg);
- m_compose(p, IMSG_CTL_OK, 0, 0, -1, NULL, 0);
- return;
-
- case IMSG_CTL_LIST_MESSAGES:
- if (c->euid)
- goto badcred;
- m_compose(p_scheduler, IMSG_CTL_LIST_MESSAGES, c->id, 0, -1,
- imsg->data, imsg->hdr.len - sizeof(imsg->hdr));
- return;
-
- case IMSG_CTL_LIST_ENVELOPES:
- if (c->euid)
- goto badcred;
- m_compose(p_scheduler, IMSG_CTL_LIST_ENVELOPES, c->id, 0, -1,
- imsg->data, imsg->hdr.len - sizeof(imsg->hdr));
- return;
-
- case IMSG_CTL_MTA_SHOW_HOSTS:
- case IMSG_CTL_MTA_SHOW_RELAYS:
- case IMSG_CTL_MTA_SHOW_ROUTES:
- case IMSG_CTL_MTA_SHOW_HOSTSTATS:
- case IMSG_CTL_MTA_SHOW_BLOCK:
- if (c->euid)
- goto badcred;
-
- imsg->hdr.peerid = c->id;
- m_forward(p_pony, imsg);
- return;
-
- case IMSG_CTL_SHOW_STATUS:
- if (c->euid)
- goto badcred;
-
- m_compose(p, IMSG_CTL_SHOW_STATUS, 0, 0, -1, &env->sc_flags,
- sizeof(env->sc_flags));
- return;
-
- case IMSG_CTL_MTA_BLOCK:
- case IMSG_CTL_MTA_UNBLOCK:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE <= sizeof(ss))
- goto invalid;
- memmove(&ss, imsg->data, sizeof(ss));
- m_create(p_pony, imsg->hdr.type, c->id, 0, -1);
- m_add_sockaddr(p_pony, (struct sockaddr *)&ss);
- m_add_string(p_pony, (char *)imsg->data + sizeof(ss));
- m_close(p_pony);
- return;
-
- case IMSG_CTL_SCHEDULE:
- if (c->euid)
- goto badcred;
-
- imsg->hdr.peerid = c->id;
- m_forward(p_scheduler, imsg);
- return;
-
- case IMSG_CTL_REMOVE:
- if (c->euid)
- goto badcred;
-
- imsg->hdr.peerid = c->id;
- m_forward(p_scheduler, imsg);
- return;
-
- case IMSG_CTL_UPDATE_TABLE:
- if (c->euid)
- goto badcred;
-
- /* table name too long */
- len = strlen(imsg->data);
- if (len >= LINE_MAX)
- goto invalid;
-
- imsg->hdr.peerid = c->id;
- m_forward(p_lka, imsg);
- return;
-
- case IMSG_CTL_DISCOVER_EVPID:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof evpid)
- goto invalid;
-
- memmove(&evpid, imsg->data, sizeof evpid);
- m_create(p_queue, imsg->hdr.type, c->id, 0, -1);
- m_add_evpid(p_queue, evpid);
- m_close(p_queue);
- return;
-
- case IMSG_CTL_DISCOVER_MSGID:
- if (c->euid)
- goto badcred;
-
- if (imsg->hdr.len - IMSG_HEADER_SIZE != sizeof msgid)
- goto invalid;
-
- memmove(&msgid, imsg->data, sizeof msgid);
- m_create(p_queue, imsg->hdr.type, c->id, 0, -1);
- m_add_msgid(p_queue, msgid);
- m_close(p_queue);
- return;
-
- default:
- log_debug("debug: control_dispatch_ext: "
- "error handling %s imsg",
- imsg_to_str(imsg->hdr.type));
- return;
- }
-badcred:
-invalid:
- m_compose(p, IMSG_CTL_FAIL, 0, 0, -1, NULL, 0);
-}
-
-static void
-control_broadcast_verbose(int msg, int v)
-{
- m_create(p_lka, msg, 0, 0, -1);
- m_add_int(p_lka, v);
- m_close(p_lka);
-
- m_create(p_pony, msg, 0, 0, -1);
- m_add_int(p_pony, v);
- m_close(p_pony);
-
- m_create(p_queue, msg, 0, 0, -1);
- m_add_int(p_queue, v);
- m_close(p_queue);
-
- m_create(p_ca, msg, 0, 0, -1);
- m_add_int(p_ca, v);
- m_close(p_ca);
-
- m_create(p_scheduler, msg, 0, 0, -1);
- m_add_int(p_scheduler, v);
- m_close(p_scheduler);
-
- m_create(p_parent, msg, 0, 0, -1);
- m_add_int(p_parent, v);
- m_close(p_parent);
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.