+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
#define _GNU_SOURCE
#include <string.h>
#include "interface.h"
#include "interface-ip.h"
#include "proto.h"
+#include "system.h"
-static struct netifd_fd proto_fd;
+static int proto_fd = -1;
enum proto_shell_sm {
S_IDLE,
char script_name[];
};
+struct proto_shell_dependency {
+ struct list_head list;
+
+ struct proto_shell_state *proto;
+ struct interface_user dep;
+
+ union if_addr host;
+ bool v6;
+};
+
struct proto_shell_state {
struct interface_proto_state proto;
struct proto_shell_handler *handler;
struct blob_attr *config;
- struct device_user l3_dev;
-
struct uloop_timeout teardown_timeout;
- struct netifd_process setup_task;
- struct netifd_process teardown_task;
+ struct netifd_process script_task;
struct netifd_process proto_task;
enum proto_shell_sm sm;
bool proto_task_killed;
int last_error;
+
+ struct list_head deps;
};
+static void
+proto_shell_check_dependencies(struct proto_shell_state *state)
+{
+ struct proto_shell_dependency *dep;
+ bool available = true;
+
+ list_for_each_entry(dep, &state->deps, list) {
+ if (dep->dep.iface)
+ continue;
+
+ available = false;
+ break;
+ }
+
+ interface_set_available(state->proto.iface, available);
+}
+
+static void
+proto_shell_if_up_cb(struct interface_user *dep, struct interface *iface,
+ enum interface_event ev);
+static void
+proto_shell_if_down_cb(struct interface_user *dep, struct interface *iface,
+ enum interface_event ev);
+
+static void
+proto_shell_update_host_dep(struct proto_shell_dependency *dep)
+{
+ struct interface *iface;
+
+ if (dep->dep.iface)
+ goto out;
+
+ iface = interface_ip_add_target_route(&dep->host, dep->v6);
+ if (!iface)
+ goto out;
+
+ interface_remove_user(&dep->dep);
+ dep->dep.cb = proto_shell_if_down_cb;
+ interface_add_user(&dep->dep, iface);
+
+out:
+ proto_shell_check_dependencies(dep->proto);
+}
+
+static void
+proto_shell_clear_host_dep(struct proto_shell_state *state)
+{
+ struct proto_shell_dependency *dep, *tmp;
+
+ list_for_each_entry_safe(dep, tmp, &state->deps, list) {
+ interface_remove_user(&dep->dep);
+ list_del(&dep->list);
+ free(dep);
+ }
+}
+
static int
proto_shell_handler(struct interface_proto_state *proto,
enum interface_proto_cmd cmd, bool force)
state = container_of(proto, struct proto_shell_state, proto);
handler = state->handler;
+ proc = &state->script_task;
if (cmd == PROTO_CMD_SETUP) {
action = "setup";
- proc = &state->setup_task;
state->last_error = -1;
+ proto_shell_clear_host_dep(state);
} else {
if (state->sm == S_TEARDOWN)
return 0;
- if (state->setup_task.uloop.pending) {
+ if (state->script_task.uloop.pending) {
if (state->sm != S_SETUP_ABORT) {
uloop_timeout_set(&state->teardown_timeout, 1000);
- kill(state->setup_task.uloop.pid, SIGTERM);
+ kill(state->script_task.uloop.pid, SIGTERM);
if (state->proto_task.uloop.pending)
kill(state->proto_task.uloop.pid, SIGTERM);
state->sm = S_SETUP_ABORT;
}
action = "teardown";
- proc = &state->teardown_task;
state->sm = S_TEARDOWN;
if (state->last_error >= 0) {
snprintf(error_buf, sizeof(error_buf), "ERROR=%d", state->last_error);
}
static void
+proto_shell_if_up_cb(struct interface_user *dep, struct interface *iface,
+ enum interface_event ev)
+{
+ struct proto_shell_dependency *pdep;
+
+ if (ev != IFEV_UP)
+ return;
+
+ pdep = container_of(dep, struct proto_shell_dependency, dep);
+ proto_shell_update_host_dep(pdep);
+}
+
+static void
+proto_shell_if_down_cb(struct interface_user *dep, struct interface *iface,
+ enum interface_event ev)
+{
+ struct proto_shell_dependency *pdep;
+ struct proto_shell_state *state;
+
+ if (ev == IFEV_UP)
+ return;
+
+ pdep = container_of(dep, struct proto_shell_dependency, dep);
+ interface_remove_user(dep);
+ dep->cb = proto_shell_if_up_cb;
+ interface_add_user(dep, NULL);
+
+ state = pdep->proto;
+ if (state->sm == S_IDLE) {
+ state->proto.proto_event(&state->proto, IFPEV_LINK_LOST);
+ proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN, false);
+ }
+}
+
+static void
proto_shell_task_finish(struct proto_shell_state *state,
struct netifd_process *task)
{
break;
case S_SETUP_ABORT:
- if (state->setup_task.uloop.pending ||
+ if (state->script_task.uloop.pending ||
state->proto_task.uloop.pending)
break;
break;
case S_TEARDOWN:
- if (state->teardown_task.uloop.pending)
+ if (state->script_task.uloop.pending)
break;
if (state->proto_task.uloop.pending) {
state = container_of(timeout, struct proto_shell_state, teardown_timeout);
- netifd_kill_process(&state->setup_task);
+ netifd_kill_process(&state->script_task);
netifd_kill_process(&state->proto_task);
- netifd_kill_process(&state->teardown_task);
proto_shell_task_finish(state, NULL);
}
static void
-proto_shell_setup_cb(struct netifd_process *p, int ret)
+proto_shell_script_cb(struct netifd_process *p, int ret)
{
struct proto_shell_state *state;
- state = container_of(p, struct proto_shell_state, setup_task);
- proto_shell_task_finish(state, p);
-}
-
-static void
-proto_shell_teardown_cb(struct netifd_process *p, int ret)
-{
- struct proto_shell_state *state;
-
- state = container_of(p, struct proto_shell_state, teardown_task);
+ state = container_of(p, struct proto_shell_state, script_task);
proto_shell_task_finish(state, p);
}
struct proto_shell_state *state;
state = container_of(proto, struct proto_shell_state, proto);
+ proto_shell_clear_host_dep(state);
+ netifd_kill_process(&state->script_task);
+ netifd_kill_process(&state->proto_task);
free(state->config);
free(state);
}
static void
-proto_shell_parse_addr_list(struct interface_ip_settings *ip, struct blob_attr *attr,
- bool v6, bool external)
+proto_shell_parse_route_list(struct interface *iface, struct blob_attr *attr,
+ bool v6)
{
- struct device_addr *addr;
struct blob_attr *cur;
int rem;
blobmsg_for_each_attr(cur, attr, rem) {
- if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING) {
- DPRINTF("Ignore wrong address type: %d\n", blobmsg_type(cur));
- continue;
- }
-
- addr = proto_parse_ip_addr_string(blobmsg_data(cur), v6, v6 ? 32 : 128);
- if (!addr) {
- DPRINTF("Failed to parse IP address string: %s\n", (char *) blobmsg_data(cur));
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_TABLE) {
+ DPRINTF("Ignore wrong route type: %d\n", blobmsg_type(cur));
continue;
}
- if (external)
- addr->flags |= DEVADDR_EXTERNAL;
-
- vlist_add(&ip->addr, &addr->node);
+ interface_ip_add_route(iface, cur, v6);
}
}
static void
-proto_shell_parse_route_list(struct interface *iface, struct blob_attr *attr,
- bool v6)
+proto_shell_parse_data(struct interface *iface, struct blob_attr *attr)
{
struct blob_attr *cur;
int rem;
- blobmsg_for_each_attr(cur, attr, rem) {
- if (blobmsg_type(cur) != BLOBMSG_TYPE_TABLE) {
- DPRINTF("Ignore wrong route type: %d\n", blobmsg_type(cur));
- continue;
- }
+ blobmsg_for_each_attr(cur, attr, rem)
+ interface_add_data(iface, cur);
+}
- interface_ip_add_route(iface, cur, v6);
- }
+static struct device *
+proto_shell_create_tunnel(const char *name, struct blob_attr *attr)
+{
+ struct device *dev;
+ struct blob_buf b;
+
+ memset(&b, 0, sizeof(b));
+ blob_buf_init(&b, 0);
+ blob_put(&b, 0, blobmsg_data(attr), blobmsg_data_len(attr));
+ dev = device_create(name, &tunnel_device_type, blob_data(b.head));
+ blob_buf_free(&b);
+
+ return dev;
}
enum {
NOTIFY_LINK_UP,
NOTIFY_IFNAME,
NOTIFY_ADDR_EXT,
- NOTIFY_IPADDR,
- NOTIFY_IP6ADDR,
NOTIFY_ROUTES,
NOTIFY_ROUTES6,
+ NOTIFY_TUNNEL,
+ NOTIFY_DATA,
+ NOTIFY_KEEP,
+ NOTIFY_HOST,
NOTIFY_DNS,
NOTIFY_DNS_SEARCH,
__NOTIFY_LAST
[NOTIFY_LINK_UP] = { .name = "link-up", .type = BLOBMSG_TYPE_BOOL },
[NOTIFY_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
[NOTIFY_ADDR_EXT] = { .name = "address-external", .type = BLOBMSG_TYPE_BOOL },
- [NOTIFY_IPADDR] = { .name = "ipaddr", .type = BLOBMSG_TYPE_ARRAY },
- [NOTIFY_IP6ADDR] = { .name = "ip6addr", .type = BLOBMSG_TYPE_ARRAY },
[NOTIFY_ROUTES] = { .name = "routes", .type = BLOBMSG_TYPE_ARRAY },
[NOTIFY_ROUTES6] = { .name = "routes6", .type = BLOBMSG_TYPE_ARRAY },
+ [NOTIFY_TUNNEL] = { .name = "tunnel", .type = BLOBMSG_TYPE_TABLE },
+ [NOTIFY_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
+ [NOTIFY_KEEP] = { .name = "keep", .type = BLOBMSG_TYPE_BOOL },
+ [NOTIFY_HOST] = { .name = "host", .type = BLOBMSG_TYPE_STRING },
[NOTIFY_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
[NOTIFY_DNS_SEARCH] = { .name = "dns_search", .type = BLOBMSG_TYPE_ARRAY },
};
static int
-proto_shell_update_link(struct proto_shell_state *state, struct blob_attr **tb)
+proto_shell_update_link(struct proto_shell_state *state, struct blob_attr *data, struct blob_attr **tb)
{
- struct interface_ip_settings *ip;
+ struct interface *iface = state->proto.iface;
struct blob_attr *cur;
+ struct device *dev;
+ const char *devname;
int dev_create = 1;
bool addr_ext = false;
+ bool keep = false;
bool up;
if (!tb[NOTIFY_LINK_UP])
return 0;
}
+ if ((cur = tb[NOTIFY_KEEP]) != NULL)
+ keep = blobmsg_get_bool(cur);
+
if ((cur = tb[NOTIFY_ADDR_EXT]) != NULL) {
addr_ext = blobmsg_get_bool(cur);
if (addr_ext)
}
if (!tb[NOTIFY_IFNAME]) {
- if (!state->proto.iface->main_dev.dev)
+ if (!iface->main_dev.dev)
return UBUS_STATUS_INVALID_ARGUMENT;
- } else {
- if (state->l3_dev.dev)
- device_remove_user(&state->l3_dev);
+ } else if (!keep || iface->state != IFS_UP) {
+ keep = false;
+ devname = blobmsg_data(tb[NOTIFY_IFNAME]);
+ if (tb[NOTIFY_TUNNEL]) {
+ dev = proto_shell_create_tunnel(devname,
+ tb[NOTIFY_TUNNEL]);
+ if (!dev)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ } else {
+ dev = device_get(devname, dev_create);
+ if (!dev)
+ return UBUS_STATUS_NOT_FOUND;
+ }
- device_add_user(&state->l3_dev,
- device_get(blobmsg_data(tb[NOTIFY_IFNAME]), dev_create));
- state->proto.iface->l3_dev = &state->l3_dev;
- device_claim(&state->l3_dev);
+ interface_set_l3_dev(iface, dev);
+ device_claim(&iface->l3_dev);
+ device_set_present(dev, true);
}
- ip = &state->proto.iface->proto_ip;
- interface_update_start(state->proto.iface);
-
- if ((cur = tb[NOTIFY_IPADDR]) != NULL)
- proto_shell_parse_addr_list(ip, cur, false, addr_ext);
+ if (!keep)
+ interface_update_start(iface);
- if ((cur = tb[NOTIFY_IP6ADDR]) != NULL)
- proto_shell_parse_addr_list(ip, cur, true, addr_ext);
+ proto_apply_ip_settings(iface, data, addr_ext);
if ((cur = tb[NOTIFY_ROUTES]) != NULL)
proto_shell_parse_route_list(state->proto.iface, cur, false);
if ((cur = tb[NOTIFY_ROUTES6]) != NULL)
proto_shell_parse_route_list(state->proto.iface, cur, true);
- if ((cur = tb[NOTIFY_DNS]) != NULL)
- interface_add_dns_server_list(ip, cur);
+ if ((cur = tb[NOTIFY_DNS]))
+ interface_add_dns_server_list(&iface->proto_ip, cur);
- if ((cur = tb[NOTIFY_DNS_SEARCH]) != NULL)
- interface_add_dns_search_list(ip, cur);
+ if ((cur = tb[NOTIFY_DNS_SEARCH]))
+ interface_add_dns_search_list(&iface->proto_ip, cur);
interface_update_complete(state->proto.iface);
- state->proto.proto_event(&state->proto, IFPEV_UP);
+ if (!keep)
+ state->proto.proto_event(&state->proto, IFPEV_UP);
+ state->sm = S_IDLE;
+
+ if ((cur = tb[NOTIFY_DATA]))
+ proto_shell_parse_data(state->proto.iface, cur);
return 0;
}
}
static int
+proto_shell_add_host_dependency(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ struct proto_shell_dependency *dep;
+ struct blob_attr *host = tb[NOTIFY_HOST];
+
+ if (!host)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ dep = calloc(1, sizeof(*dep));
+ if (!inet_pton(AF_INET, blobmsg_data(host), &dep->host)) {
+ free(dep);
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ }
+
+ dep->proto = state;
+ dep->dep.cb = proto_shell_if_up_cb;
+ interface_add_user(&dep->dep, NULL);
+ list_add(&dep->list, &state->deps);
+ proto_shell_update_host_dep(dep);
+ if (!dep->dep.iface)
+ return UBUS_STATUS_NOT_FOUND;
+
+ return 0;
+}
+
+static int
+proto_shell_setup_failed(struct proto_shell_state *state)
+{
+ switch (state->sm) {
+ case S_IDLE:
+ state->proto.proto_event(&state->proto, IFPEV_LINK_LOST);
+ /* fall through */
+ case S_SETUP:
+ proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN, false);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static int
proto_shell_notify(struct interface_proto_state *proto, struct blob_attr *attr)
{
struct proto_shell_state *state;
switch(blobmsg_get_u32(tb[NOTIFY_ACTION])) {
case 0:
- return proto_shell_update_link(state, tb);
+ return proto_shell_update_link(state, attr, tb);
case 1:
return proto_shell_run_command(state, tb);
case 2:
return proto_shell_block_restart(state, tb);
case 5:
return proto_shell_set_available(state, tb);
+ case 6:
+ return proto_shell_add_host_dependency(state, tb);
+ case 7:
+ return proto_shell_setup_failed(state);
default:
return UBUS_STATUS_INVALID_ARGUMENT;
}
struct proto_shell_state *state;
state = calloc(1, sizeof(*state));
+ INIT_LIST_HEAD(&state->deps);
+
state->config = malloc(blob_pad_len(attr));
if (!state->config)
goto error;
state->proto.notify = proto_shell_notify;
state->proto.cb = proto_shell_handler;
state->teardown_timeout.cb = proto_shell_teardown_timeout_cb;
- state->setup_task.cb = proto_shell_setup_cb;
- state->setup_task.dir_fd = proto_fd.fd;
- state->setup_task.log_prefix = iface->name;
- state->teardown_task.cb = proto_shell_teardown_cb;
- state->teardown_task.dir_fd = proto_fd.fd;
- state->teardown_task.log_prefix = iface->name;
+ state->script_task.cb = proto_shell_script_cb;
+ state->script_task.dir_fd = proto_fd;
+ state->script_task.log_prefix = iface->name;
state->proto_task.cb = proto_shell_task_cb;
- state->proto_task.dir_fd = proto_fd.fd;
+ state->proto_task.dir_fd = proto_fd;
state->proto_task.log_prefix = iface->name;
state->handler = container_of(h, struct proto_shell_handler, proto);
if (chdir("./proto"))
goto close_cur;
- proto_fd.fd = open(".", O_RDONLY | O_DIRECTORY);
- if (proto_fd.fd < 0)
+ proto_fd = open(".", O_RDONLY | O_DIRECTORY);
+ if (proto_fd < 0)
goto close_cur;
- netifd_fd_add(&proto_fd);
+ system_fd_set_cloexec(proto_fd);
glob("./*.sh", 0, NULL, &g);
for (i = 0; i < g.gl_pathc; i++)
proto_shell_add_script(g.gl_pathv[i]);
projects / project / netifd.git / blobdiff