+/*
+ * 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 <stdlib.h>
#include <stdio.h>
-#include <glob.h>
-#include <unistd.h>
-#include <fcntl.h>
#include <signal.h>
#include <arpa/inet.h>
#include <netinet/in.h>
-#include <libubox/blobmsg_json.h>
#include "netifd.h"
#include "interface.h"
#include "interface-ip.h"
#include "proto.h"
+#include "system.h"
+#include "handler.h"
-static int proto_fd;
+static int proto_fd = -1;
+
+enum proto_shell_sm {
+ S_IDLE,
+ S_SETUP,
+ S_SETUP_ABORT,
+ S_TEARDOWN,
+};
struct proto_shell_handler {
struct list_head list;
struct proto_handler proto;
- struct config_param_list config;
char *config_buf;
- char script_name[];
+ char *script_name;
+ bool init_available;
+
+ struct uci_blob_param_list config;
+};
+
+struct proto_shell_dependency {
+ struct list_head list;
+
+ struct proto_shell_state *proto;
+ struct interface_user dep;
+
+ union if_addr host;
+ bool v6;
+ bool any;
+
+ char interface[];
};
struct proto_shell_state {
struct proto_shell_handler *handler;
struct blob_attr *config;
- struct device_user l3_dev;
+ struct uloop_timeout teardown_timeout;
+
+ /*
+ * Teardown and setup interface again if it is still not up (IFS_UP)
+ * after checkup_interval seconds since previous attempt. This check
+ * will be disabled when the config option "checkup_interval" is
+ * missing or has a negative value
+ */
+ int checkup_interval;
+ struct uloop_timeout checkup_timeout;
- struct uloop_timeout setup_timeout;
- struct uloop_process setup_task;
- struct uloop_process teardown_task;
- bool teardown_pending;
- bool teardown_wait_task;
+ struct netifd_process script_task;
+ struct netifd_process proto_task;
- struct uloop_process proto_task;
+ enum proto_shell_sm sm;
+ bool proto_task_killed;
+ bool renew_pending;
+
+ int last_error;
+
+ struct list_head deps;
};
static void
-kill_process(struct uloop_process *proc)
+proto_shell_check_dependencies(struct proto_shell_state *state)
{
- if (!proc->pending)
- return;
+ struct proto_shell_dependency *dep;
+ bool available = true;
+
+ list_for_each_entry(dep, &state->deps, list) {
+ if (dep->dep.iface)
+ continue;
- kill(proc->pid, SIGTERM);
- uloop_process_delete(proc);
+ available = false;
+ break;
+ }
+
+ interface_set_available(state->proto.iface, available);
}
-static int
-start_process(const char **argv, struct uloop_process *proc)
+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)
{
- int pid;
+ struct interface *iface = NULL;
- kill_process(proc);
+ if (dep->dep.iface)
+ goto out;
- if ((pid = fork()) < 0)
- return -1;
+ if (dep->interface[0]) {
+ iface = vlist_find(&interfaces, dep->interface, iface, node);
- if (!pid) {
- fchdir(proto_fd);
- execvp(argv[0], (char **) argv);
- exit(127);
+ if (!iface || iface->state != IFS_UP)
+ goto out;
}
- if (pid < 0)
- return -1;
+ if (!dep->any)
+ iface = interface_ip_add_target_route(&dep->host, dep->v6, iface);
- proc->pid = pid;
- uloop_process_add(proc);
+ if (!iface)
+ goto out;
- return 0;
+ 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
{
struct proto_shell_state *state;
struct proto_shell_handler *handler;
- struct uloop_process *proc;
- const char *argv[6];
+ struct netifd_process *proc;
+ static char error_buf[32];
+ const char *argv[7];
+ char *envp[2];
const char *action;
char *config;
- int ret, i = 0;
+ int ret, i = 0, j = 0;
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;
+ switch (state->sm) {
+ case S_IDLE:
+ action = "setup";
+ state->last_error = -1;
+ proto_shell_clear_host_dep(state);
+ state->sm = S_SETUP;
+ break;
+
+ case S_SETUP_ABORT:
+ case S_TEARDOWN:
+ case S_SETUP:
+ return 0;
+
+ default:
+ return -1;
+ }
+ } else if (cmd == PROTO_CMD_RENEW) {
+ if (!(handler->proto.flags & PROTO_FLAG_RENEW_AVAILABLE))
+ return 0;
+
+ if (state->script_task.uloop.pending) {
+ state->renew_pending = true;
+ return 0;
+ }
+
+ state->renew_pending = false;
+ action = "renew";
} else {
- action = "teardown";
- proc = &state->teardown_task;
- if (state->setup_task.pending && !state->teardown_wait_task) {
- uloop_timeout_set(&state->setup_timeout, 1000);
- kill(state->setup_task.pid, SIGTERM);
- state->teardown_pending = true;
+ switch (state->sm) {
+ case S_SETUP:
+ if (state->script_task.uloop.pending) {
+ uloop_timeout_set(&state->teardown_timeout, 1000);
+ kill(state->script_task.uloop.pid, SIGTERM);
+ if (state->proto_task.uloop.pending)
+ kill(state->proto_task.uloop.pid, SIGTERM);
+ state->renew_pending = false;
+ state->sm = S_SETUP_ABORT;
+ return 0;
+ }
+ /* fall through if no script task is running */
+ case S_IDLE:
+ action = "teardown";
+ state->renew_pending = false;
+ state->sm = S_TEARDOWN;
+ if (state->last_error >= 0) {
+ snprintf(error_buf, sizeof(error_buf), "ERROR=%d", state->last_error);
+ envp[j++] = error_buf;
+ }
+ uloop_timeout_set(&state->teardown_timeout, 5000);
+ break;
+
+ case S_TEARDOWN:
return 0;
+
+ default:
+ return -1;
}
}
+ D(INTERFACE, "run %s for interface '%s'\n", action, proto->iface->name);
config = blobmsg_format_json(state->config, true);
if (!config)
return -1;
if (proto->iface->main_dev.dev)
argv[i++] = proto->iface->main_dev.dev->ifname;
argv[i] = NULL;
+ envp[j] = NULL;
- ret = start_process(argv, proc);
+ ret = netifd_start_process(argv, envp, proc);
free(config);
return ret;
}
static void
-proto_shell_setup_timeout_cb(struct uloop_timeout *timeout)
+proto_shell_if_up_cb(struct interface_user *dep, struct interface *iface,
+ enum interface_event ev)
{
- struct proto_shell_state *state;
+ struct proto_shell_dependency *pdep;
- state = container_of(timeout, struct proto_shell_state, setup_timeout);
- kill(state->setup_task.pid, SIGKILL);
+ if (ev != IFEV_UP && ev != IFEV_UPDATE)
+ return;
+
+ pdep = container_of(dep, struct proto_shell_dependency, dep);
+ proto_shell_update_host_dep(pdep);
}
static void
-proto_shell_setup_cb(struct uloop_process *p, int ret)
+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;
- state = container_of(p, struct proto_shell_state, setup_task);
- uloop_timeout_cancel(&state->setup_timeout);
- if (state->teardown_pending) {
- state->teardown_pending = false;
+ if (ev == IFEV_UP || ev == IFEV_UPDATE)
+ 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_teardown_cb(struct uloop_process *p, int ret)
+proto_shell_task_finish(struct proto_shell_state *state,
+ struct netifd_process *task)
{
- struct proto_shell_state *state;
+ switch (state->sm) {
+ case S_IDLE:
+ if (task == &state->proto_task)
+ state->proto.proto_event(&state->proto, IFPEV_LINK_LOST);
+ /* fall through */
+ case S_SETUP:
+ if (task == &state->proto_task)
+ proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN,
+ false);
+ else if (task == &state->script_task) {
+ if (state->renew_pending)
+ proto_shell_handler(&state->proto,
+ PROTO_CMD_RENEW, false);
+ else if (!(state->handler->proto.flags & PROTO_FLAG_NO_TASK) &&
+ !state->proto_task.uloop.pending &&
+ state->sm == S_SETUP)
+ proto_shell_handler(&state->proto,
+ PROTO_CMD_TEARDOWN,
+ false);
+
+ /* check up status after setup attempt by this script_task */
+ if (state->sm == S_SETUP && state->checkup_interval > 0) {
+ uloop_timeout_set(&state->checkup_timeout,
+ state->checkup_interval * 1000);
+ }
+ }
+ break;
- state = container_of(p, struct proto_shell_state, teardown_task);
+ case S_SETUP_ABORT:
+ if (state->script_task.uloop.pending ||
+ state->proto_task.uloop.pending)
+ break;
- if (state->teardown_wait_task)
- return;
+ /* completed aborting all tasks, now idle */
+ uloop_timeout_cancel(&state->teardown_timeout);
+ uloop_timeout_cancel(&state->checkup_timeout);
+ state->sm = S_IDLE;
+ proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN, false);
+ break;
- kill_process(&state->proto_task);
+ case S_TEARDOWN:
+ if (state->script_task.uloop.pending)
+ break;
- if (state->l3_dev.dev)
- device_remove_user(&state->l3_dev);
+ if (state->proto_task.uloop.pending) {
+ if (!state->proto_task_killed)
+ kill(state->proto_task.uloop.pid, SIGTERM);
+ break;
+ }
- state->proto.proto_event(&state->proto, IFPEV_DOWN);
+ /* completed tearing down all tasks, now idle */
+ uloop_timeout_cancel(&state->teardown_timeout);
+ uloop_timeout_cancel(&state->checkup_timeout);
+ state->sm = S_IDLE;
+ state->proto.proto_event(&state->proto, IFPEV_DOWN);
+ break;
+ }
}
static void
-proto_shell_task_cb(struct uloop_process *p, int ret)
+proto_shell_teardown_timeout_cb(struct uloop_timeout *timeout)
{
struct proto_shell_state *state;
- bool teardown_wait_task;
-
- state = container_of(p, struct proto_shell_state, proto_task);
-
- teardown_wait_task = state->teardown_wait_task;
- state->teardown_wait_task = false;
- if (state->teardown_pending || state->teardown_task.pending)
- return;
- if (teardown_wait_task) {
- proto_shell_teardown_cb(&state->teardown_task, 0);
- return;
- }
+ state = container_of(timeout, struct proto_shell_state, teardown_timeout);
- state->proto.proto_event(&state->proto, IFPEV_LINK_LOST);
- proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN, false);
+ netifd_kill_process(&state->script_task);
+ netifd_kill_process(&state->proto_task);
+ proto_shell_task_finish(state, NULL);
}
static void
-proto_shell_free(struct interface_proto_state *proto)
+proto_shell_script_cb(struct netifd_process *p, int ret)
{
struct proto_shell_state *state;
- state = container_of(proto, struct proto_shell_state, proto);
- free(state->config);
- free(state);
+ state = container_of(p, struct proto_shell_state, script_task);
+ proto_shell_task_finish(state, p);
}
static void
-proto_shell_parse_addr_list(struct interface *iface, struct blob_attr *attr,
- bool v6, bool external)
+proto_shell_task_cb(struct netifd_process *p, int ret)
{
- 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;
- }
+ struct proto_shell_state *state;
- 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));
- continue;
- }
+ state = container_of(p, struct proto_shell_state, proto_task);
- if (external)
- addr->flags |= DEVADDR_EXTERNAL;
+ if (state->sm == S_IDLE || state->sm == S_SETUP)
+ state->last_error = WEXITSTATUS(ret);
- vlist_add(&iface->proto_addr, &addr->node);
- }
+ proto_shell_task_finish(state, p);
}
-enum {
- ROUTE_TARGET,
- ROUTE_MASK,
- ROUTE_GATEWAY,
- ROUTE_DEVICE,
- __ROUTE_LAST
-};
-
-static const struct blobmsg_policy route_attr[__ROUTE_LAST] = {
- [ROUTE_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
- [ROUTE_MASK] = { .name = "mask", .type = BLOBMSG_TYPE_STRING },
- [ROUTE_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
- [ROUTE_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
-};
-
static void
-parse_route(struct interface *iface, struct blob_attr *attr, bool v6)
+proto_shell_free(struct interface_proto_state *proto)
{
- struct blob_attr *tb[__ROUTE_LAST], *cur;
- struct device_route *route;
- int af = v6 ? AF_INET6 : AF_INET;
-
- blobmsg_parse(route_attr, __ROUTE_LAST, tb, blobmsg_data(attr), blobmsg_data_len(attr));
-
- if (!tb[ROUTE_GATEWAY] && !tb[ROUTE_DEVICE])
- return;
-
- route = calloc(1, sizeof(*route));
- if (!route)
- return;
-
- route->mask = v6 ? 128 : 32;
- if ((cur = tb[ROUTE_MASK]) != NULL) {
- route->mask = blobmsg_get_u32(cur);
- if (route->mask > v6 ? 128 : 32)
- goto error;
- }
-
- if ((cur = tb[ROUTE_TARGET]) != NULL) {
- if (!inet_pton(af, blobmsg_data(cur), &route->addr)) {
- DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur));
- goto error;
- }
- }
-
- if ((cur = tb[ROUTE_GATEWAY]) != NULL) {
- if (!inet_pton(af, blobmsg_data(cur), &route->nexthop)) {
- DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur));
- goto error;
- }
- }
-
- if ((cur = tb[ROUTE_DEVICE]) != NULL)
- route->device = device_get(blobmsg_data(cur), true);
-
- vlist_add(&iface->proto_route, &route->node);
- return;
+ struct proto_shell_state *state;
-error:
- free(route);
+ state = container_of(proto, struct proto_shell_state, proto);
+ uloop_timeout_cancel(&state->teardown_timeout);
+ uloop_timeout_cancel(&state->checkup_timeout);
+ 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
continue;
}
- parse_route(iface, cur, v6);
+ interface_ip_add_route(iface, cur, v6);
}
}
+static void
+proto_shell_parse_data(struct interface *iface, struct blob_attr *attr)
+{
+ struct blob_attr *cur;
+ int rem;
+
+ blobmsg_for_each_attr(cur, attr, rem)
+ interface_add_data(iface, cur);
+}
+
+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_ACTION,
+ NOTIFY_ERROR,
NOTIFY_COMMAND,
+ NOTIFY_ENV,
NOTIFY_SIGNAL,
+ NOTIFY_AVAILABLE,
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
};
static const struct blobmsg_policy notify_attr[__NOTIFY_LAST] = {
[NOTIFY_ACTION] = { .name = "action", .type = BLOBMSG_TYPE_INT32 },
+ [NOTIFY_ERROR] = { .name = "error", .type = BLOBMSG_TYPE_ARRAY },
[NOTIFY_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_ARRAY },
+ [NOTIFY_ENV] = { .name = "env", .type = BLOBMSG_TYPE_ARRAY },
[NOTIFY_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
+ [NOTIFY_AVAILABLE] = { .name = "available", .type = BLOBMSG_TYPE_BOOL },
[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 *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 (state->sm == S_TEARDOWN || state->sm == S_SETUP_ABORT)
+ return UBUS_STATUS_PERMISSION_DENIED;
+
if (!tb[NOTIFY_LINK_UP])
return UBUS_STATUS_INVALID_ARGUMENT;
return 0;
}
- if (!tb[NOTIFY_IFNAME]) {
- if (!state->proto.iface->main_dev.dev)
- return UBUS_STATUS_INVALID_ARGUMENT;
- } else if (!state->l3_dev.dev) {
- device_add_user(&state->l3_dev,
- device_get(blobmsg_data(tb[NOTIFY_IFNAME]), true));
- device_claim(&state->l3_dev);
- state->proto.iface->l3_dev = &state->l3_dev;
+ 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)
+ dev_create = 2;
}
- interface_ip_update_start(state->proto.iface);
+ if (iface->state != IFS_UP || !iface->l3_dev.dev)
+ keep = false;
+
+ if (!keep) {
+ dev = iface->main_dev.dev;
+ if (tb[NOTIFY_IFNAME]) {
+ keep = false;
+ devname = blobmsg_data(tb[NOTIFY_IFNAME]);
+ if (tb[NOTIFY_TUNNEL])
+ dev = proto_shell_create_tunnel(devname, tb[NOTIFY_TUNNEL]);
+ else
+ dev = device_get(devname, dev_create);
+ }
- if ((cur = tb[NOTIFY_ADDR_EXT]) != NULL)
- addr_ext = blobmsg_get_bool(cur);
+ if (!dev)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ interface_set_l3_dev(iface, dev);
+ if (device_claim(&iface->l3_dev) < 0)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ device_set_present(dev, true);
+ }
- if ((cur = tb[NOTIFY_IPADDR]) != NULL)
- proto_shell_parse_addr_list(state->proto.iface, cur, false, addr_ext);
+ interface_update_start(iface, keep);
- if ((cur = tb[NOTIFY_IP6ADDR]) != NULL)
- proto_shell_parse_addr_list(state->proto.iface, 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(state->proto.iface, cur);
+ if ((cur = tb[NOTIFY_DNS]))
+ interface_add_dns_server_list(&iface->proto_ip, cur);
- interface_ip_update_complete(state->proto.iface);
+ if ((cur = tb[NOTIFY_DNS_SEARCH]))
+ interface_add_dns_search_list(&iface->proto_ip, cur);
- state->proto.proto_event(&state->proto, IFPEV_UP);
+ if ((cur = tb[NOTIFY_DATA]))
+ proto_shell_parse_data(state->proto.iface, cur);
+
+ interface_update_complete(state->proto.iface);
+
+ if ((state->sm != S_SETUP_ABORT) && (state->sm != S_TEARDOWN)) {
+ state->proto.proto_event(&state->proto, IFPEV_UP);
+ state->sm = S_IDLE;
+ }
return 0;
}
-static int
-proto_shell_run_command(struct proto_shell_state *state, struct blob_attr **tb)
+static bool
+fill_string_list(struct blob_attr *attr, char **argv, int max)
{
struct blob_attr *cur;
- char *argv[64];
int argc = 0;
int rem;
- if (!tb[NOTIFY_COMMAND])
- goto error;
+ if (!attr)
+ goto out;
- blobmsg_for_each_attr(cur, tb[NOTIFY_COMMAND], rem) {
+ blobmsg_for_each_attr(cur, attr, rem) {
if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
- goto error;
+ return false;
if (!blobmsg_check_attr(cur, NULL))
- goto error;
+ return false;
argv[argc++] = blobmsg_data(cur);
- if (argc == ARRAY_SIZE(argv) - 1)
- goto error;
+ if (argc == max - 1)
+ return false;
}
+
+out:
argv[argc] = NULL;
- start_process((const char **) argv, &state->proto_task);
+ return true;
+}
+
+static int
+proto_shell_run_command(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ static char *argv[64];
+ static char *env[32];
+
+ if (state->sm == S_TEARDOWN || state->sm == S_SETUP_ABORT)
+ return UBUS_STATUS_PERMISSION_DENIED;
+
+ if (!tb[NOTIFY_COMMAND])
+ goto error;
+
+ if (!fill_string_list(tb[NOTIFY_COMMAND], argv, ARRAY_SIZE(argv)))
+ goto error;
+
+ if (!fill_string_list(tb[NOTIFY_ENV], env, ARRAY_SIZE(env)))
+ goto error;
+
+ netifd_start_process((const char **) argv, (char **) env, &state->proto_task);
return 0;
if (signal > 31)
signal = SIGTERM;
- if (state->proto_task.pending) {
- kill(state->proto_task.pid, signal);
- state->teardown_wait_task = true;
+ if (state->proto_task.uloop.pending) {
+ if (signal == SIGTERM || signal == SIGKILL)
+ state->proto_task_killed = true;
+ kill(state->proto_task.uloop.pid, signal);
+ }
+
+ return 0;
+}
+
+static int
+proto_shell_notify_error(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ struct blob_attr *cur;
+ char *data[16];
+ int n_data = 0;
+ int rem;
+
+ if (!tb[NOTIFY_ERROR])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ blobmsg_for_each_attr(cur, tb[NOTIFY_ERROR], rem) {
+ if (n_data + 1 == ARRAY_SIZE(data))
+ goto error;
+
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ goto error;
+
+ if (!blobmsg_check_attr(cur, NULL))
+ goto error;
+
+ data[n_data++] = blobmsg_data(cur);
}
+ if (!n_data)
+ goto error;
+
+ interface_add_error(state->proto.iface, state->handler->proto.name,
+ data[0], (const char **) &data[1], n_data - 1);
+
return 0;
+
+error:
+ return UBUS_STATUS_INVALID_ARGUMENT;
+}
+
+static int
+proto_shell_block_restart(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ state->proto.iface->autostart = false;
+ return 0;
+}
+
+static int
+proto_shell_set_available(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ if (!tb[NOTIFY_AVAILABLE])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ interface_set_available(state->proto.iface, blobmsg_get_bool(tb[NOTIFY_AVAILABLE]));
+ return 0;
+}
+
+static int
+proto_shell_add_host_dependency(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ struct proto_shell_dependency *dep;
+ const char *ifname = tb[NOTIFY_IFNAME] ? blobmsg_data(tb[NOTIFY_IFNAME]) : "";
+ const char *host = tb[NOTIFY_HOST] ? blobmsg_data(tb[NOTIFY_HOST]) : "";
+
+ if (state->sm == S_TEARDOWN || state->sm == S_SETUP_ABORT)
+ return UBUS_STATUS_PERMISSION_DENIED;
+
+ dep = calloc(1, sizeof(*dep) + strlen(ifname) + 1);
+ if (!dep)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ if (!host[0] && ifname[0]) {
+ dep->any = true;
+ } else if (inet_pton(AF_INET, host, &dep->host) < 1) {
+ if (inet_pton(AF_INET6, host, &dep->host) < 1) {
+ free(dep);
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ } else {
+ dep->v6 = true;
+ }
+ }
+
+ dep->proto = state;
+ strcpy(dep->interface, ifname);
+
+ 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)
+{
+ int ret = 0;
+
+ 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;
+ case S_SETUP_ABORT:
+ case S_TEARDOWN:
+ default:
+ ret = UBUS_STATUS_PERMISSION_DENIED;
+ break;
+ }
+ return ret;
}
static int
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_kill_command(state, tb);
+ case 3:
+ return proto_shell_notify_error(state, tb);
+ case 4:
+ 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 interface_proto_state *
+static void
+proto_shell_checkup_timeout_cb(struct uloop_timeout *timeout)
+{
+ struct proto_shell_state *state = container_of(timeout, struct
+ proto_shell_state, checkup_timeout);
+ struct interface_proto_state *proto = &state->proto;
+ struct interface *iface = proto->iface;
+
+ if (!iface->autostart)
+ return;
+
+ if (iface->state == IFS_UP)
+ return;
+
+ D(INTERFACE, "Interface '%s' is not up after %d sec\n",
+ iface->name, state->checkup_interval);
+ proto_shell_handler(proto, PROTO_CMD_TEARDOWN, false);
+}
+
+static void
+proto_shell_checkup_attach(struct proto_shell_state *state,
+ const struct blob_attr *attr)
+{
+ struct blob_attr *tb;
+ struct blobmsg_policy checkup_policy = {
+ .name = "checkup_interval",
+ .type = BLOBMSG_TYPE_INT32
+ };
+
+ blobmsg_parse(&checkup_policy, 1, &tb, blob_data(attr), blob_len(attr));
+ if (!tb) {
+ state->checkup_interval = -1;
+ state->checkup_timeout.cb = NULL;
+ } else {
+ state->checkup_interval = blobmsg_get_u32(tb);
+ state->checkup_timeout.cb = proto_shell_checkup_timeout_cb;
+ }
+}
+
+static struct interface_proto_state *
proto_shell_attach(const struct proto_handler *h, struct interface *iface,
struct blob_attr *attr)
{
struct proto_shell_state *state;
state = calloc(1, sizeof(*state));
+ if (!state)
+ return NULL;
+
+ INIT_LIST_HEAD(&state->deps);
+
state->config = malloc(blob_pad_len(attr));
if (!state->config)
goto error;
memcpy(state->config, attr, blob_pad_len(attr));
+ proto_shell_checkup_attach(state, state->config);
state->proto.free = proto_shell_free;
state->proto.notify = proto_shell_notify;
state->proto.cb = proto_shell_handler;
- state->setup_timeout.cb = proto_shell_setup_timeout_cb;
- state->setup_task.cb = proto_shell_setup_cb;
- state->teardown_task.cb = proto_shell_teardown_cb;
+ state->teardown_timeout.cb = proto_shell_teardown_timeout_cb;
+ 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;
+ state->proto_task.log_prefix = iface->name;
state->handler = container_of(h, struct proto_shell_handler, proto);
return &state->proto;
return NULL;
}
-static json_object *
-check_type(json_object *obj, json_type type)
-{
- if (!obj)
- return NULL;
-
- if (json_object_get_type(obj) != type)
- return NULL;
-
- return obj;
-}
-
-static inline json_object *
-get_field(json_object *obj, const char *name, json_type type)
-{
- return check_type(json_object_object_get(obj, name), type);
-}
-
-static char *
-proto_shell_parse_config(struct config_param_list *config, json_object *obj)
-{
- struct blobmsg_policy *attrs;
- char *str_buf, *str_cur;
- int str_len = 0;
- int i;
-
- config->n_params = json_object_array_length(obj);
- attrs = calloc(1, sizeof(*attrs) * config->n_params);
- if (!attrs)
- return NULL;
-
- config->params = attrs;
- for (i = 0; i < config->n_params; i++) {
- json_object *cur, *name, *type;
-
- cur = check_type(json_object_array_get_idx(obj, i), json_type_array);
- if (!cur)
- goto error;
-
- name = check_type(json_object_array_get_idx(cur, 0), json_type_string);
- if (!name)
- goto error;
-
- type = check_type(json_object_array_get_idx(cur, 1), json_type_int);
- if (!type)
- goto error;
-
- attrs[i].name = json_object_get_string(name);
- attrs[i].type = json_object_get_int(type);
- if (attrs[i].type > BLOBMSG_TYPE_LAST)
- goto error;
-
- str_len += strlen(attrs[i].name) + 1;
- }
-
- str_buf = malloc(str_len);
- if (!str_buf)
- goto error;
-
- str_cur = str_buf;
- for (i = 0; i < config->n_params; i++) {
- const char *name = attrs[i].name;
-
- attrs[i].name = str_cur;
- str_cur += sprintf(str_cur, "%s", name) + 1;
- }
-
- return str_buf;
-
-error:
- free(attrs);
- config->n_params = 0;
- return NULL;
-}
-
static void
-proto_shell_add_handler(const char *script, json_object *obj)
+proto_shell_add_handler(const char *script, const char *name, json_object *obj)
{
struct proto_shell_handler *handler;
struct proto_handler *proto;
json_object *config, *tmp;
- const char *name;
- char *str;
-
- if (!check_type(obj, json_type_object))
- return;
-
- tmp = get_field(obj, "name", json_type_string);
- if (!tmp)
- return;
-
- name = json_object_get_string(tmp);
+ char *proto_name, *script_name;
- handler = calloc(1, sizeof(*handler) +
- strlen(script) + 1 +
- strlen(name) + 1);
+ handler = calloc_a(sizeof(*handler),
+ &proto_name, strlen(name) + 1,
+ &script_name, strlen(script) + 1);
if (!handler)
return;
- strcpy(handler->script_name, script);
-
- str = handler->script_name + strlen(handler->script_name) + 1;
- strcpy(str, name);
+ handler->script_name = strcpy(script_name, script);
proto = &handler->proto;
- proto->name = str;
+ proto->name = strcpy(proto_name, name);
proto->config_params = &handler->config;
proto->attach = proto_shell_attach;
- tmp = get_field(obj, "no-device", json_type_boolean);
+ tmp = json_get_field(obj, "no-device", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_NODEV;
- config = get_field(obj, "config", json_type_array);
- if (config)
- handler->config_buf = proto_shell_parse_config(&handler->config, config);
-
- DPRINTF("Add handler for script %s: %s\n", script, proto->name);
- add_proto_handler(proto);
-}
-
-static void proto_shell_add_script(const char *name)
-{
- struct json_tokener *tok = NULL;
- json_object *obj;
- static char buf[512];
- char *start, *end, *cmd;
- FILE *f;
- int buflen, len;
-
-#define DUMP_SUFFIX " '' dump"
-
- cmd = alloca(strlen(name) + 1 + sizeof(DUMP_SUFFIX));
- sprintf(cmd, "%s" DUMP_SUFFIX, name);
+ tmp = json_get_field(obj, "no-proto-task", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_NO_TASK;
- f = popen(cmd, "r");
- if (!f)
- return;
+ tmp = json_get_field(obj, "available", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_INIT_AVAILABLE;
- do {
- buflen = fread(buf, 1, sizeof(buf) - 1, f);
- if (buflen <= 0)
- continue;
+ tmp = json_get_field(obj, "renew-handler", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_RENEW_AVAILABLE;
- start = buf;
- len = buflen;
- do {
- end = memchr(start, '\n', len);
- if (end)
- len = end - start;
-
- if (!tok)
- tok = json_tokener_new();
-
- obj = json_tokener_parse_ex(tok, start, len);
- if (!is_error(obj)) {
- proto_shell_add_handler(name, obj);
- json_object_put(obj);
- json_tokener_free(tok);
- tok = NULL;
- }
+ tmp = json_get_field(obj, "lasterror", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_LASTERROR;
- if (end) {
- start = end + 1;
- len = buflen - (start - buf);
- }
- } while (len > 0);
- } while (!feof(f) && !ferror(f));
+ tmp = json_get_field(obj, "teardown-on-l3-link-down", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_TEARDOWN_ON_L3_LINK_DOWN;
- if (tok)
- json_tokener_free(tok);
+ config = json_get_field(obj, "config", json_type_array);
+ if (config)
+ handler->config_buf = netifd_handler_parse_config(&handler->config, config);
- pclose(f);
+ DPRINTF("Add handler for script %s: %s\n", script, proto->name);
+ add_proto_handler(proto);
}
-void __init proto_shell_init(void)
+void proto_shell_init(void)
{
- glob_t g;
- int main_fd;
- int i;
-
- main_fd = open(".", O_RDONLY | O_DIRECTORY);
- if (main_fd < 0)
- return;
-
- if (chdir(main_path)) {
- perror("chdir(main path)");
- goto close_cur;
- }
-
- if (chdir("./proto"))
- goto close_cur;
-
- proto_fd = open(".", O_RDONLY | O_DIRECTORY);
+ proto_fd = netifd_open_subdir("proto");
if (proto_fd < 0)
- goto close_cur;
-
- glob("./*.sh", 0, NULL, &g);
- for (i = 0; i < g.gl_pathc; i++)
- proto_shell_add_script(g.gl_pathv[i]);
+ return;
-close_cur:
- fchdir(main_fd);
- close(main_fd);
+ netifd_init_script_handlers(proto_fd, proto_shell_add_handler);
}
projects / project / netifd.git / blobdiff