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udevmand: move the code directly into the repo

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Signed-off-by: John Crispin <john@phrozen.org>
This commit is contained in:
John Crispin
2025-09-07 10:04:06 +02:00
parent 20a7a48c9f
commit cbf0e536df
15 changed files with 2247 additions and 8 deletions
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8
feeds/ucentral/udevmand/Makefile
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@@ -2,17 +2,9 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=udevmand PKG_NAME:=udevmand
PKG_RELEASE:=1 PKG_RELEASE:=1
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL=https://github.com/blogic/udevmand.git
PKG_MIRROR_HASH:=6f6a5536656a64e1f38f03747ef06ab03b28ef797adc72a901eb7dbc6e45e496
PKG_SOURCE_DATE:=20250704
PKG_SOURCE_VERSION:=e56be31d7c341467cc26714dac5c6b450a612808
CMAKE_INSTALL:=1 CMAKE_INSTALL:=1
PKG_LICENSE:=LGPL-2.1 PKG_LICENSE:=LGPL-2.1
PKG_LICENSE_FILES:= PKG_LICENSE_FILES:=
PKG_MAINTAINER:=John Crispin <john@phrozen.org> PKG_MAINTAINER:=John Crispin <john@phrozen.org>
include $(INCLUDE_DIR)/package.mk include $(INCLUDE_DIR)/package.mk

15
feeds/ucentral/udevmand/src/CMakeLists.txt Normal file
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@@ -0,0 +1,15 @@
cmake_minimum_required(VERSION 2.6)
include_directories(/usr/local/include/libnl-tiny)
PROJECT(udevmand C)
INCLUDE(GNUInstallDirs)
ADD_DEFINITIONS(-Os -ggdb -Wall -Werror --std=gnu99 -Wmissing-declarations)
SET(LIBS ubox ubus json-c blobmsg_json uci nl-tiny)
ADD_EXECUTABLE(udevmand main.c mac.c neigh.c ubus.c blob.c netlink.c bridge.c dhcp.c netifd.c ethers.c netdev.c)
TARGET_LINK_LIBRARIES(udevmand ${LIBS})
INSTALL(TARGETS udevmand
RUNTIME DESTINATION ${CMAKE_INSTALL_SBINDIR}
)

502
feeds/ucentral/udevmand/src/COPYING Normal file
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@@ -0,0 +1,502 @@
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That's all there is to it!

69
feeds/ucentral/udevmand/src/blob.c Normal file
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/*
* Copyright (C) 2017 John Crispin <john@phrozen.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* 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.
*/
#include "udevmand.h"
struct blob_buf b = { 0 };
static char *iftype_string[NUM_NL80211_IFTYPES] = {
[NL80211_IFTYPE_STATION] = "station",
[NL80211_IFTYPE_AP] = "ap",
[NL80211_IFTYPE_MONITOR] = "monitor",
[NL80211_IFTYPE_ADHOC] = "adhoc",
};
void blobmsg_add_iface(struct blob_buf *bbuf, char *name, int index)
{
static char _ifname[IF_NAMESIZE];
char *ifname = if_indextoname(index, _ifname);
if (!ifname)
return;
blobmsg_add_string(&b, name, ifname);
}
void blobmsg_add_iftype(struct blob_buf *bbuf, const char *name, const uint32_t iftype)
{
if (iftype_string[iftype])
blobmsg_add_string(&b, name, iftype_string[iftype]);
else
blobmsg_add_u32(&b, name, iftype);
}
void blobmsg_add_ipv4(struct blob_buf *bbuf, const char *name, const uint8_t* addr)
{
char ip[16];
snprintf(ip, sizeof(ip), "%d.%d.%d.%d", addr[0], addr[1], addr[2], addr[3]);
blobmsg_add_string(&b, name, ip);
}
void blobmsg_add_ipv6(struct blob_buf *bbuf, const char *name, const uint8_t* _addr)
{
const uint16_t* addr = (const uint16_t*) _addr;
char ip[40];
snprintf(ip, sizeof(ip), "%x:%x:%x:%x:%x:%x:%x:%x",
ntohs(addr[0]), ntohs(addr[1]), ntohs(addr[2]), ntohs(addr[3]),
ntohs(addr[4]), ntohs(addr[5]), ntohs(addr[6]), ntohs(addr[7]));
blobmsg_add_string(&b, name, ip);
}
void blobmsg_add_mac(struct blob_buf *bbuf, const char *name, const uint8_t* addr)
{
char mac[18];
snprintf(mac, sizeof(mac), "%02x:%02x:%02x:%02x:%02x:%02x",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
blobmsg_add_string(&b, name, mac);
}

213
feeds/ucentral/udevmand/src/bridge.c Normal file
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@@ -0,0 +1,213 @@
/*
* Copyright (C) 2020 John Crispin <john@phrozen.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* 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.
*/
#include "udevmand.h"
#include <linux/if_bridge.h>
#define BR_MAX_ENTRY 2048
static struct uloop_timeout bridge_timer;
static struct vlist_tree bridge_mac;
static LIST_HEAD(bridge_if);
struct bridge_if {
struct list_head list;
char name[IF_NAMESIZE];
unsigned int port_no;
};
static void
bridge_read_mac(const char *bridge)
{
FILE *fd;
int i, cnt;
struct __fdb_entry fe[BR_MAX_ENTRY];
char path[PATH_MAX];
snprintf(path, PATH_MAX, "/sys/class/net/%s/brforward", bridge);
fd = fopen(path, "r");
if (!fd)
return;
cnt = fread(fe, sizeof(struct __fdb_entry), BR_MAX_ENTRY, fd);
fclose(fd);
for (i = 0; i < cnt; i++) {
struct bridge_mac *b = malloc(sizeof(*b));
struct bridge_if *brif;
if (!b)
continue;
strncpy(b->bridge, bridge, IF_NAMESIZE);
strncpy(b->ifname, bridge, IF_NAMESIZE);
list_for_each_entry(brif, &bridge_if, list)
if (fe[i].port_no == brif->port_no)
strncpy(b->ifname, brif->name, IF_NAMESIZE);
memcpy(b->addr, fe[i].mac_addr, ETH_ALEN);
b->port_no = fe[i].port_no;
vlist_add(&bridge_mac, &b->vlist, (void *) b);
}
}
void
bridge_dump_if(const char *bridge)
{
char path[PATH_MAX];
void *c = NULL;
glob_t gl;
int i;
snprintf(path, PATH_MAX, "/sys/class/net/%s/brif/*", bridge);
if (glob(path, GLOB_MARK | GLOB_ONLYDIR | GLOB_NOSORT, NULL, &gl))
return;
for (i = 0; i < gl.gl_pathc; i++) {
if (!c)
c = blobmsg_open_array(&b, "bridge");
blobmsg_add_string(&b, NULL, basename(gl.gl_pathv[i]));
}
if (c)
blobmsg_close_array(&b, c);
globfree(&gl);
}
static void
bridge_read_if(const char *bridge)
{
struct bridge_if *brif;
char path[PATH_MAX];
glob_t gl;
int i;
snprintf(path, PATH_MAX, "/sys/class/net/%s/brif/*", bridge);
if (glob(path, GLOB_MARK | GLOB_ONLYDIR | GLOB_NOSORT, NULL, &gl))
return;
for (i = 0; i < gl.gl_pathc; i++) {
unsigned int port_no;
FILE *fd;
int ret;
snprintf(path, PATH_MAX, "/sys/class/net/%s/brif/%s/port_no", bridge, basename(gl.gl_pathv[i]));
fd = fopen(path, "r");
if (!fd)
continue;
ret = fscanf(fd, "0x%x", &port_no);
fclose(fd);
if (ret != 1)
continue;
brif = malloc(sizeof(*brif));
if (!brif)
goto out;
strcpy(brif->name, basename(gl.gl_pathv[i]));
brif->port_no = port_no;
list_add(&brif->list, &bridge_if);
}
out:
globfree(&gl);
}
static void bridge_tout(struct uloop_timeout *t)
{
struct bridge_if *brif, *tmp;
glob_t gl;
int i;
if (glob("/sys/class/net/*", GLOB_MARK | GLOB_ONLYDIR | GLOB_NOSORT, NULL, &gl))
goto out;
list_for_each_entry_safe(brif, tmp, &bridge_if, list) {
list_del(&brif->list);
free(brif);
}
for (i = 0; i < gl.gl_pathc; i++)
bridge_read_if(basename(gl.gl_pathv[i]));
vlist_update(&bridge_mac);
for (i = 0; i < gl.gl_pathc; i++)
bridge_read_mac(basename(gl.gl_pathv[i]));
vlist_flush(&bridge_mac);
globfree(&gl);
out:
uloop_timeout_set(&bridge_timer, 1000);
}
static int bridge_cmp(const void *k1, const void *k2, void *ptr)
{
const struct bridge_mac *b1 = (const struct bridge_mac *)k1;
const struct bridge_mac *b2 = (const struct bridge_mac *)k2;
return memcmp(b1->addr, b2->addr, ETH_ALEN);
}
static void bridge_update(struct vlist_tree *tree, struct vlist_node *node_new, struct vlist_node *node_old)
{
struct bridge_mac *b1, *b2;
b1 = container_of(node_old, struct bridge_mac, vlist);
b2 = container_of(node_new, struct bridge_mac, vlist);
if (!!b1 != !!b2) {
struct bridge_mac *_b = b1 ? b1 : b2;
ULOG_INFO("%s fdb %s:%d "MAC_FMT"\n", b1 ? "del" : "new", _b->ifname, _b->port_no, MAC_VAR(_b->addr));
}
if (b1) {
list_del(&b1->mac);
free(b1);
}
if (b2) {
struct mac *mac = NULL;
mac = mac_find(b2->addr);
mac_update(mac, b2->bridge);
list_add(&b2->mac, &mac->bridge_mac);
}
}
void bridge_init(void)
{
bridge_timer.cb = bridge_tout;
uloop_timeout_set(&bridge_timer, 1000);
vlist_init(&bridge_mac, bridge_cmp, bridge_update);
}
void bridge_flush(void)
{
struct bridge_if *brif, *tmp;
vlist_flush_all(&bridge_mac);
list_for_each_entry_safe(brif, tmp, &bridge_if, list) {
list_del(&brif->list);
free(brif);
}
}
void
bridge_mac_del(struct bridge_mac *b)
{
list_del(&b->mac);
vlist_delete(&bridge_mac, &b->vlist);
free(b);
}

161
feeds/ucentral/udevmand/src/dhcp.c Normal file
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#include "udevmand.h"
enum {
DHCP_MAC,
DHCP_IP,
DHCP_NAME,
DHCP_IFACE,
__DHCP_MAX
};
static const struct blobmsg_policy dhcp_policy[__DHCP_MAX] = {
[DHCP_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
[DHCP_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
[DHCP_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
[DHCP_IFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
};
static struct avl_tree dhcpv4_tree = AVL_TREE_INIT(dhcpv4_tree, avl_mac_cmp, false, NULL);
static void
dhcpv4_add(uint8_t *addr, uint8_t *ip, char *name, char *iface)
{
struct dhcpv4 *dhcpv4;
struct mac *mac;
mac = mac_find(addr);
dhcpv4 = avl_find_element(&dhcpv4_tree, addr, dhcpv4, avl);
if (dhcpv4) {
list_del(&dhcpv4->mac);
avl_delete(&dhcpv4_tree, &dhcpv4->avl);
free(dhcpv4);
}
dhcpv4 = malloc(sizeof(*dhcpv4) + (name ? strlen(name) + 1 : 1));
if (!dhcpv4)
return;
if (iface)
strncpy(dhcpv4->iface, iface, sizeof(dhcpv4->iface));
else
*dhcpv4->iface = '\0';
if (name)
strcpy(dhcpv4->name, name);
else
*dhcpv4->name = '\0';
memcpy(dhcpv4->ip, ip, 4);
memcpy(dhcpv4->addr, addr, ETH_ALEN);
dhcpv4->avl.key = dhcpv4->addr;
avl_insert(&dhcpv4_tree, &dhcpv4->avl);
list_add(&dhcpv4->mac, &mac->dhcpv4);
mac_update(mac, dhcpv4->iface);
ULOG_INFO("new dhcpv4 " MAC_FMT "/" IP_FMT " for %s\n",
MAC_VAR(dhcpv4->addr), IP_VAR(ip),
strlen(dhcpv4->name) ? dhcpv4->name : "<unknown>");
}
void
dhcpv4_ack(struct blob_attr *msg)
{
struct blob_attr *tb[__DHCP_MAX];
uint8_t addr[ETH_ALEN], ip[4];
char *name = NULL;
int ret;
blobmsg_parse(dhcp_policy, __DHCP_MAX, tb, blob_data(msg), blob_len(msg));
if (!tb[DHCP_MAC] || !tb[DHCP_IP] || !tb[DHCP_IFACE])
return;
ret = sscanf(blobmsg_get_string(tb[DHCP_MAC]), "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]);
if (ret != 6)
return;
ret = sscanf(blobmsg_get_string(tb[DHCP_IP]), "%hhu.%hhu.%hhu.%hhu",
&ip[0], &ip[1], &ip[2], &ip[3]);
if (ret != 4)
return;
if (tb[DHCP_NAME])
name = blobmsg_get_string(tb[DHCP_NAME]);
dhcpv4_add(addr, ip, name, blobmsg_get_string(tb[DHCP_IFACE]));
}
void
dhcpv4_release(struct blob_attr *msg)
{
struct blob_attr *tb[__DHCP_MAX];
struct dhcpv4 *dhcpv4;
uint8_t addr[ETH_ALEN];
int ret;
blobmsg_parse(dhcp_policy, __DHCP_MAX, tb, blob_data(msg), blob_len(msg));
if (!tb[DHCP_MAC])
return;
ret = sscanf(blobmsg_get_string(tb[DHCP_MAC]), "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]);
if (ret != 6)
return;
dhcpv4 = avl_find_element(&dhcpv4_tree, addr, dhcpv4, avl);
if (!dhcpv4)
return;
ULOG_INFO("del dhcpv4 " MAC_FMT "\n", MAC_VAR(dhcpv4->addr));
list_del(&dhcpv4->mac);
avl_delete(&dhcpv4_tree, &dhcpv4->avl);
free(dhcpv4);
}
void
dhcpv4_del(struct dhcpv4 *dhcpv4)
{
list_del(&dhcpv4->mac);
avl_delete(&dhcpv4_tree, &dhcpv4->avl);
free(dhcpv4);
}
void
dhcp_init(void)
{
FILE *fp = fopen("/tmp/dhcp.leases", "r");
char line[1024];
if (!fp)
return;
while (fgets(line, sizeof(line), fp)) {
uint8_t addr[ETH_ALEN], ip[4];
char hostname[256 + 1];
long int timestamp;
int ret;
ret = sscanf(line, "%ld %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx %hhu.%hhu.%hhu.%hhu %s",
&timestamp,
&addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5],
&ip[0], &ip[1], &ip[2], &ip[3],
hostname);
if (ret != 12)
continue;
dhcpv4_add(addr, ip, hostname, NULL);
}
fclose(fp);
}
void
dhcp_done(void)
{
struct dhcpv4 *d, *t;
avl_for_each_element_safe(&dhcpv4_tree, d, avl, t) {
avl_delete(&dhcpv4_tree, &d->avl);
free(d);
}
}

36
feeds/ucentral/udevmand/src/ethers.c Normal file
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#include "udevmand.h"
void
ethers_init(void)
{
char buf[512], *p;
int ret;
FILE *f;
f = fopen("/etc/ethers", "r");
if (!f)
return;
while (fgets(buf, sizeof(buf), f)) {
uint8_t addr[ETH_ALEN];
struct mac *mac;
p = strtok(buf, " \t\n");
ret = sscanf(p, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]);
if (ret != 6)
continue;
p = strtok(NULL, " \t\n");
if (!p)
continue;
mac = mac_find(addr);
mac->ethers = strdup(p);
ULOG_INFO("new ethers " MAC_FMT" %s\n", MAC_VAR(addr), p);
}
fclose(f);
}

158
feeds/ucentral/udevmand/src/mac.c Normal file
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#include "udevmand.h"
int
avl_mac_cmp(const void *k1, const void *k2, void *ptr)
{
return memcmp(k1, k2, ETH_ALEN);
}
struct avl_tree mac_tree = AVL_TREE_INIT(mac_tree, avl_mac_cmp, false, NULL);
struct mac*
mac_find(uint8_t *addr)
{
struct mac *mac;
uint8_t *addr_buf;
mac = avl_find_element(&mac_tree, addr, mac, avl);
if (mac)
return mac;
mac = calloc_a(sizeof(struct mac), &addr_buf, 6);
if (!mac)
return NULL;
mac->addr = memcpy(addr_buf, addr, ETH_ALEN);
mac->avl.key = mac->addr;
mac->ethers = NULL;
*mac->interface = '\0';
INIT_LIST_HEAD(&mac->neigh4);
INIT_LIST_HEAD(&mac->neigh6);
INIT_LIST_HEAD(&mac->dhcpv4);
INIT_LIST_HEAD(&mac->bridge_mac);
avl_insert(&mac_tree, &mac->avl);
ULOG_INFO("new mac "MAC_FMT"\n", MAC_VAR(mac->addr));
return mac;
}
void
mac_update(struct mac *mac, char *iface)
{
char *interface = interface_resolve(iface);
if (iface && *iface)
strncpy(mac->interface, interface, sizeof(mac->interface));
clock_gettime(CLOCK_MONOTONIC, &mac->ts);
}
void
mac_dump(struct mac *mac, int interface)
{
struct timespec ts;
time_t last_seen;
char buf[18];
void *c, *d;
neigh_enum();
clock_gettime(CLOCK_MONOTONIC, &ts);
last_seen = ts.tv_sec - mac->ts.tv_sec;
snprintf(buf, sizeof(buf), MAC_FMT, MAC_VAR(mac->addr));
c = blobmsg_open_table(&b, buf);
if (interface && *mac->interface)
blobmsg_add_string(&b, "interface", mac->interface);
if (mac->ethers)
blobmsg_add_string(&b, "ethers", mac->ethers);
if (last_seen < 5 * 60)
blobmsg_add_u32(&b, "last_seen", last_seen);
else
blobmsg_add_u8(&b, "offline", 1);
if (!list_empty(&mac->neigh4)) {
struct neigh *neigh;
d = blobmsg_open_array(&b, "ipv4");
list_for_each_entry(neigh, &mac->neigh4, list)
blobmsg_add_ipv4(&b, NULL, neigh->ip);
blobmsg_close_array(&b, d);
}
if (!list_empty(&mac->neigh6)) {
struct neigh *neigh;
d = blobmsg_open_array(&b, "ipv6");
list_for_each_entry(neigh, &mac->neigh6, list)
blobmsg_add_ipv6(&b, NULL, neigh->ip);
blobmsg_close_array(&b, d);
}
if (!list_empty(&mac->dhcpv4)) {
struct dhcpv4 *dhcpv4;
d = blobmsg_open_array(&b, "dhcpv4");
list_for_each_entry(dhcpv4, &mac->dhcpv4, mac) {
blobmsg_add_ipv4(&b, NULL, dhcpv4->ip);
if (strlen(dhcpv4->name) > 0)
blobmsg_add_string(&b, NULL, dhcpv4->name);
break;
}
blobmsg_close_array(&b, d);
}
if (!list_empty(&mac->bridge_mac)) {
struct bridge_mac *bridge_mac;
d = blobmsg_open_array(&b, "fdb");
list_for_each_entry(bridge_mac, &mac->bridge_mac, mac)
blobmsg_add_string(&b, NULL, bridge_mac->ifname);
blobmsg_close_array(&b, d);
}
blobmsg_close_array(&b, c);
neigh_flush();
}
static void
mac_flush(struct mac *mac, struct timespec ts)
{
time_t last_seen;
last_seen = ts.tv_sec - mac->ts.tv_sec;
if (last_seen < 60 * 60)
return;
if (!list_empty(&mac->dhcpv4)) {
struct dhcpv4 *dhcpv4, *t;
list_for_each_entry_safe(dhcpv4, t, &mac->dhcpv4, mac)
dhcpv4_del(dhcpv4);
}
if (!list_empty(&mac->bridge_mac)) {
struct bridge_mac *bridge_mac, *t;
list_for_each_entry_safe(bridge_mac, t, &mac->bridge_mac, mac)
bridge_mac_del(bridge_mac);
}
}
int
mac_dump_all(void)
{
struct mac *mac, *t;
struct timespec ts;
blob_buf_init(&b, 0);
avl_for_each_element(&mac_tree, mac, avl)
mac_dump(mac, 1);
clock_gettime(CLOCK_MONOTONIC, &ts);
avl_for_each_element_safe(&mac_tree, mac, avl, t)
mac_flush(mac, ts);
return 0;
}

37
feeds/ucentral/udevmand/src/main.c Normal file
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@@ -0,0 +1,37 @@
/*
* Copyright (C) 2020 John Crispin <john@phrozen.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* 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.
*/
#include "udevmand.h"
int main(int argc, char **argv)
{
ulog_open(ULOG_STDIO, LOG_DAEMON, "udevmand");
uloop_init();
ubus_init();
ethers_init();
neigh_init();
bridge_init();
dhcp_init();
uloop_run();
uloop_done();
ubus_uninit();
bridge_flush();
blob_buf_free(&b);
neigh_done();
interface_done();
dhcp_done();
iface_done();
return 0;
}

189
feeds/ucentral/udevmand/src/neigh.c Normal file
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/*
* Copyright (C) 2020 John Crispin <john@phrozen.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* 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.
*/
#include "udevmand.h"
static struct nl_socket rtnl_sock;
static int
avl_ipv4_cmp(const void *k1, const void *k2, void *ptr)
{
return memcmp(k1, k2, 4);
}
static int
avl_ipv6_cmp(const void *k1, const void *k2, void *ptr)
{
return memcmp(k1, k2, 16);
}
static struct avl_tree ip4_tree = AVL_TREE_INIT(ip4_tree, avl_ipv4_cmp, false, NULL);
static struct avl_tree ip6_tree = AVL_TREE_INIT(ip6_tree, avl_ipv6_cmp, false, NULL);
static void
neigh_del(struct neigh *neigh)
{
struct avl_tree *ip_tree = &ip4_tree;
if (neigh->ip_ver == 6)
ip_tree = &ip6_tree;
uloop_timeout_cancel(&neigh->ageing);
list_del(&neigh->list);
avl_delete(ip_tree, &neigh->avl);
free(neigh);
}
static void
neigh_ageing_cb(struct uloop_timeout *t)
{
struct neigh *neigh = container_of(t, struct neigh, ageing);
neigh_del(neigh);
}
static void
neigh_handler(struct nlmsghdr *nh, int type)
{
uint8_t *lladdr, *dummy[6] = { 0 };
uint8_t set[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
uint8_t clear[6] = { };
uint8_t mcast[2] = { 0x33, 0x33 };
struct ndmsg *ndm = nlmsg_data(nh);
struct nlattr *nda[__NDA_MAX];
uint8_t *mac_buf, *ip_buf;
struct avl_tree *ip_tree;
struct neigh *neigh;
struct mac *mac;
int ip_len, ip_ver, refresh = 0;
void *dst;
nlmsg_parse(nh, sizeof(struct ndmsg), nda, NDA_MAX, NULL);
if (!nda[NDA_DST])
return;
dst = nla_data(nda[NDA_DST]);
lladdr = nda[NDA_LLADDR] ? nla_data(nda[NDA_LLADDR]) : dummy;
if (!memcmp(lladdr, set, 6) || !memcmp(lladdr, clear, 6) || !memcmp(lladdr, mcast, 2) || *lladdr == 0x1)
return;
mac = mac_find(lladdr);
switch (ndm->ndm_family) {
case AF_INET:
ip_len = ip_ver = 4;
ip_tree = &ip4_tree;
break;
case AF_INET6:
ip_len = 16;
ip_ver = 6;
ip_tree = &ip6_tree;
break;
default:
return;
}
neigh = avl_find_element(ip_tree, dst, neigh, avl);
if (neigh) {
if (!type)
ULOG_INFO("del ipv%d for "MAC_FMT" on %s\n", neigh->ip_ver, MAC_VAR(lladdr), neigh->ifname);
refresh = 1;
neigh_del(neigh);
}
if (!type)
return;
neigh = calloc_a(sizeof(struct neigh),
&ip_buf, ip_len, &mac_buf, 6);
if (!neigh)
return;
neigh->ip = memcpy(ip_buf, dst, ip_len);
neigh->iface = ndm->ndm_ifindex;
neigh->avl.key = neigh->ip;
neigh->ip_ver = ip_ver;
neigh->ageing.cb = neigh_ageing_cb;
uloop_timeout_set(&neigh->ageing, 24 * 60 * 60 * 1000);
if_indextoname(neigh->iface, neigh->ifname);
if (neigh->ip_ver == 4)
list_add(&neigh->list, &mac->neigh4);
else
list_add(&neigh->list, &mac->neigh6);
avl_insert(ip_tree, &neigh->avl);
mac_update(mac, neigh->ifname);
if (!refresh)
ULOG_INFO("new ipv%d for "MAC_FMT" on %s\n", neigh->ip_ver, MAC_VAR(lladdr), neigh->ifname);
}
static int
neigh_netlink_cb(struct nl_msg *msg, void *arg)
{
struct nlmsghdr *nh = nlmsg_hdr(msg);
switch (nh->nlmsg_type) {
case RTM_NEWNEIGH:
neigh_handler(nh, 1);
break;
case RTM_DELNEIGH:
neigh_handler(nh, 0);
break;
default:
break;
}
return NL_OK;
}
void
neigh_enum(void)
{
struct rtgenmsg msg = { .rtgen_family = AF_UNSPEC };
nl_send_simple(rtnl_sock.sock, RTM_GETNEIGH, NLM_F_DUMP, &msg, sizeof(msg));
nl_wait_for_ack(rtnl_sock.sock);
}
void
neigh_flush(void)
{
struct neigh *neigh, *tmp;
avl_for_each_element_safe(&ip4_tree, neigh, avl, tmp)
neigh_del(neigh);
avl_for_each_element_safe(&ip6_tree, neigh, avl, tmp)
neigh_del(neigh);
}
int
neigh_init(void)
{
ULOG_INFO("open neigh netlink socket\n");
if (!nl_status_socket(&rtnl_sock, NETLINK_ROUTE, neigh_netlink_cb, NULL)) {
ULOG_ERR("failed to open rtnl socket\n");
return -1;
}
return 0;
}
void
neigh_done(void)
{
nl_socket_free(rtnl_sock.sock);
}

235
feeds/ucentral/udevmand/src/netdev.c Normal file
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#include "udevmand.h"
struct avl_tree iface_tree = AVL_TREE_INIT(iface_tree, avl_strcmp, false, NULL);
struct iface_ip {
struct list_head list;
char ip[];
};
struct iface {
struct avl_node avl;
int alive;
char name[IF_NAMESIZE];
struct rtnl_link_stats stats;
struct rtnl_link_stats stats_old;
struct list_head ipv6, ipv4;
uint8_t addr[ETH_ALEN];
};
static struct iface*
iface_find(char *name)
{
struct iface *iface = avl_find_element(&iface_tree, name, iface, avl);
if (iface) {
iface->alive = 1;
return iface;
}
iface = malloc(sizeof(*iface));
if (!iface)
return NULL;
memset(iface, 0, sizeof(*iface));
iface->alive = 1;
iface->avl.key = strcpy(iface->name, name);
INIT_LIST_HEAD(&iface->ipv4);
INIT_LIST_HEAD(&iface->ipv6);
avl_insert(&iface_tree, &iface->avl);
return iface;
}
void
iface_done(void)
{
struct iface *i, *t;
avl_for_each_element_safe(&iface_tree, i, avl, t) {
avl_delete(&iface_tree, &i->avl);
free(i);
}
}
static void
iface_get(void)
{
int fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
struct ifaddrs *ifaddr, *ifa;
int n;
if (getifaddrs(&ifaddr) == -1) {
ULOG_ERR("failed to getifaddrs\n");
return;
}
for (ifa = ifaddr, n = 0; ifa != NULL; ifa = ifa->ifa_next, n++) {
char host[NI_MAXHOST];
struct iface *iface;
int family, s;
if (ifa->ifa_addr == NULL)
continue;
if ((ifa->ifa_flags & IFF_UP) == 0)
continue;
if (ifa->ifa_flags & IFF_LOOPBACK)
continue;
family = ifa->ifa_addr->sa_family;
iface = iface_find(ifa->ifa_name);
if (!iface)
continue;
if (family == AF_INET || family == AF_INET6) {
struct iface_ip *ip;
s = getnameinfo(ifa->ifa_addr,
(family == AF_INET) ? sizeof(struct sockaddr_in) :
sizeof(struct sockaddr_in6),
host, NI_MAXHOST,
NULL, 0, NI_NUMERICHOST);
if (s)
continue;
ip = malloc(sizeof(*ip) + strlen(host) + 1);
if (!ip)
continue;
strcpy(ip->ip, host);
if (family == AF_INET)
list_add(&ip->list, &iface->ipv4);
else
list_add(&ip->list, &iface->ipv6);
} else if (family == AF_PACKET && ifa->ifa_data != NULL) {
struct rtnl_link_stats *stats = ifa->ifa_data;
struct ifreq s;
memcpy(&iface->stats, stats, sizeof(*stats));
memset(iface->addr, 0, ETH_ALEN);
if (fd) {
strcpy(s.ifr_name, ifa->ifa_name);
if (!ioctl(fd, SIOCGIFHWADDR, &s))
memcpy(iface->addr, s.ifr_addr.sa_data, ETH_ALEN);
}
}
}
freeifaddrs(ifaddr);
if (fd)
close(fd);
}
static void
iface_flush(void)
{
struct iface *iface, *tmp;
avl_for_each_element_safe(&iface_tree, iface, avl, tmp) {
struct iface_ip *ip, *tmp;
list_for_each_entry_safe(ip, tmp, &iface->ipv4, list) {
list_del(&ip->list);
free(ip);
}
list_for_each_entry_safe(ip, tmp, &iface->ipv6, list) {
list_del(&ip->list);
free(ip);
}
if (!iface->alive) {
avl_delete(&iface_tree, &iface->avl);
free(iface);
} else {
iface->alive = 0;
}
}
}
static int get_counter_delta(__u32 new, __u32 old)
{
uint32_t delta;
if (new < old)
delta = UINT32_MAX - old + new;
else
delta = new - old;
return delta > 0 ? delta : 0;
}
void
iface_dump(int delta)
{
struct iface *iface;
iface_get();
blob_buf_init(&b, 0);
avl_for_each_element(&iface_tree, iface, avl) {
struct iface_ip *ip;
void *c, *d;
if (!iface->alive)
continue;
c = blobmsg_open_table(&b, interface_resolve(iface->name));
blobmsg_add_mac(&b, "hwaddr", iface->addr);
if (!list_empty(&iface->ipv4)) {
d = blobmsg_open_array(&b, "ipv4");
list_for_each_entry(ip, &iface->ipv4, list)
blobmsg_add_string(&b, NULL, ip->ip);
blobmsg_close_array(&b, d);
}
if (!list_empty(&iface->ipv4)) {
d = blobmsg_open_array(&b, "ipv6");
list_for_each_entry(ip, &iface->ipv6, list)
blobmsg_add_string(&b, NULL, ip->ip);
blobmsg_close_array(&b, d);
}
d = blobmsg_open_table(&b, "counters");
blobmsg_add_u64(&b, "rx_packets", iface->stats.rx_packets);
blobmsg_add_u64(&b, "tx_packets", iface->stats.tx_packets);
blobmsg_add_u64(&b, "rx_bytes", iface->stats.rx_bytes);
blobmsg_add_u64(&b, "tx_bytes", iface->stats.tx_bytes);
blobmsg_add_u64(&b, "rx_errors", iface->stats.rx_errors);
blobmsg_add_u64(&b, "tx_errors", iface->stats.tx_errors);
blobmsg_add_u64(&b, "rx_dropped", iface->stats.rx_dropped);
blobmsg_add_u64(&b, "tx_dropped", iface->stats.tx_dropped);
blobmsg_add_u64(&b, "multicast", iface->stats.multicast);
blobmsg_add_u64(&b, "collisions", iface->stats.collisions);
blobmsg_close_table(&b, d);
if (delta) {
d = blobmsg_open_table(&b, "deltas");
blobmsg_add_u32(&b, "rx_packets",
get_counter_delta(iface->stats.rx_packets, iface->stats_old.rx_packets));
blobmsg_add_u32(&b, "tx_packets",
get_counter_delta(iface->stats.tx_packets, iface->stats_old.tx_packets));
blobmsg_add_u32(&b, "rx_bytes",
get_counter_delta(iface->stats.rx_bytes, iface->stats_old.rx_bytes));
blobmsg_add_u32(&b, "tx_bytes",
get_counter_delta(iface->stats.tx_bytes, iface->stats_old.tx_bytes));
blobmsg_add_u32(&b, "rx_errors",
get_counter_delta(iface->stats.rx_errors, iface->stats_old.rx_errors));
blobmsg_add_u32(&b, "tx_errors",
get_counter_delta(iface->stats.tx_errors, iface->stats_old.tx_errors));
blobmsg_add_u32(&b, "rx_dropped",
get_counter_delta(iface->stats.rx_dropped, iface->stats_old.rx_dropped));
blobmsg_add_u32(&b, "tx_dropped",
get_counter_delta(iface->stats.tx_dropped, iface->stats_old.tx_dropped));
blobmsg_add_u32(&b, "multicast",
get_counter_delta(iface->stats.multicast, iface->stats_old.multicast));
blobmsg_add_u32(&b, "collisions",
get_counter_delta(iface->stats.collisions, iface->stats_old.collisions));
blobmsg_close_table(&b, d);
}
memcpy(&iface->stats_old, &iface->stats, sizeof(iface->stats));
bridge_dump_if(iface->name);
blobmsg_close_table(&b, c);
}
iface_flush();
}

116
feeds/ucentral/udevmand/src/netifd.c Normal file
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#include "udevmand.h"
enum {
INTERFACE_DEVICE,
INTERFACE_IFACE,
__INTERFACE_MAX
};
static const struct blobmsg_policy interface_policy[__INTERFACE_MAX] = {
[INTERFACE_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
[INTERFACE_IFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
};
static struct avl_tree interface_tree = AVL_TREE_INIT(interface_tree, avl_strcmp, false, NULL);
void
interface_update(struct blob_attr *msg, int raw)
{
struct blob_attr *tb[__INTERFACE_MAX];
struct interface *interface;
char *device, *iface, *device_buf, *iface_buf;
if (raw)
blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blob_data(msg), blob_len(msg));
else
blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blobmsg_data(msg), blobmsg_data_len(msg));
if (!tb[INTERFACE_DEVICE] || !tb[INTERFACE_IFACE])
return;
iface = blobmsg_get_string(tb[INTERFACE_IFACE]);
device = blobmsg_get_string(tb[INTERFACE_DEVICE]);
interface = avl_find_element(&interface_tree, iface, interface, avl);
if (interface) {
avl_delete(&interface_tree, &interface->avl);
free(interface);
}
interface = calloc_a(sizeof(struct neigh),
&iface_buf, strlen(iface) + 1,
&device_buf, strlen(device) + 1);
if (!interface)
return;
interface->iface = strcpy(iface_buf, iface);
interface->device = strcpy(device_buf, device);
interface->avl.key = interface->iface;
avl_insert(&interface_tree, &interface->avl);
ULOG_INFO("new interface %s:%s\n", iface, device);
}
void
interface_down(struct blob_attr *msg)
{
struct blob_attr *tb[__INTERFACE_MAX];
struct interface *interface;
char *iface;
blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blob_data(msg), blob_len(msg));
if (!tb[INTERFACE_IFACE])
return;
iface = blobmsg_get_string(tb[INTERFACE_IFACE]);
interface = avl_find_element(&interface_tree, iface, interface, avl);
if (!interface)
return;
ULOG_INFO("del interface %s\n", interface->iface);
avl_delete(&interface_tree, &interface->avl);
free(interface);
}
char*
interface_resolve(char *ifname)
{
struct interface *interface;
avl_for_each_element(&interface_tree, interface, avl)
if (!strcmp(interface->device, ifname))
return interface->iface;
return ifname;
}
int
interface_dump(void)
{
struct interface *interface;
struct mac *mac;
blob_buf_init(&b, 0);
avl_for_each_element(&interface_tree, interface, avl) {
void *c;
c = blobmsg_open_table(&b, interface->iface);
avl_for_each_element(&mac_tree, mac, avl)
if (!strcmp(interface->iface, mac->interface))
mac_dump(mac, 0);
blobmsg_close_table(&b, c);
}
return 0;
}
void
interface_done(void)
{
struct interface *i, *t;
avl_for_each_element_safe(&interface_tree, i, avl, t)
free(i);
}

113
feeds/ucentral/udevmand/src/netlink.c Normal file
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/*
* Copyright (C) 2017 John Crispin <john@phrozen.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* 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.
*/
#include "udevmand.h"
static void
nl_handler_nl_status(struct uloop_fd *u, unsigned int statuss)
{
struct nl_socket *ev = container_of(u, struct nl_socket, uloop);
int err;
socklen_t errlen = sizeof(err);
if (!u->error) {
nl_recvmsgs_default(ev->sock);
return;
}
if (getsockopt(u->fd, SOL_SOCKET, SO_ERROR, (void *)&err, &errlen))
goto abort;
switch(err) {
case ENOBUFS:
ev->bufsize *= 2;
if (nl_socket_set_buffer_size(ev->sock, ev->bufsize, 0))
goto abort;
break;
default:
goto abort;
}
u->error = false;
return;
abort:
uloop_fd_delete(&ev->uloop);
return;
}
static struct nl_sock *
nl_create_socket(int protocol, int groups)
{
struct nl_sock *sock;
sock = nl_socket_alloc();
if (!sock)
return NULL;
if (groups)
nl_join_groups(sock, groups);
if (nl_connect(sock, protocol))
return NULL;
return sock;
}
static bool
nl_raw_status_socket(struct nl_socket *ev, int protocol, int groups,
uloop_fd_handler cb, int flags)
{
ev->sock = nl_create_socket(protocol, groups);
if (!ev->sock)
return false;
ev->uloop.fd = nl_socket_get_fd(ev->sock);
ev->uloop.cb = cb;
if (uloop_fd_add(&ev->uloop, ULOOP_READ|flags))
return false;
return true;
}
bool
nl_status_socket(struct nl_socket *ev, int protocol,
int (*cb)(struct nl_msg *msg, void *arg), void *priv)
{
if (!nl_raw_status_socket(ev, protocol, 0, nl_handler_nl_status, ULOOP_ERROR_CB))
return false;
nl_socket_modify_cb(ev->sock, NL_CB_VALID, NL_CB_CUSTOM, cb, priv);
nl_socket_disable_seq_check(ev->sock);
ev->bufsize = 65535;
if (nl_socket_set_buffer_size(ev->sock, ev->bufsize, 0))
return false;
return true;
}
int genl_send_and_recv(struct nl_socket *ev, struct nl_msg * msg)
{
int ret = nl_send_auto_complete(ev->sock, msg);
nlmsg_free(msg);
if (ret < 0)
return ret;
nl_recvmsgs_default(ev->sock);
nl_wait_for_ack(ev->sock);
return 0;
}

253
feeds/ucentral/udevmand/src/ubus.c Normal file
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@@ -0,0 +1,253 @@
/*
* Copyright (C) 2020 John Crispin <john@phrozen.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* 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.
*/
#include "udevmand.h"
static struct ubus_auto_conn conn;
static struct ubus_subscriber subscriber;
enum {
EVENT_ID,
EVENT_PATH,
__EVENT_MAX
};
static const struct blobmsg_policy status_policy[__EVENT_MAX] = {
[EVENT_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
[EVENT_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
};
static const struct ubus_watch_list {
const char *path;
int wildcard;
} ubus_watch_list[] = {
{
.path = "service",
}, {
.path = "dnsmasq",
}, {
.path = "network.interface",
}, {
.path = "network.status",
},
};
static int
ubus_mac_cb(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
if (!mac_dump_all())
ubus_send_reply(ctx, req, b.head);
return UBUS_STATUS_OK;
}
/*static int
ubus_interface_cb(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
if (!interface_dump())
ubus_send_reply(ctx, req, b.head);
return UBUS_STATUS_OK;
}*/
static int
ubus_port_cb(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
enum {
DUMP_DELTA,
__DUMP_MAX
};
static const struct blobmsg_policy dump_policy[__DUMP_MAX] = {
[DUMP_DELTA] = { .name = "delta", .type = BLOBMSG_TYPE_INT32 },
};
struct blob_attr *tb[__DUMP_MAX];
int delta = 0;
blobmsg_parse(dump_policy, __DUMP_MAX, tb, blob_data(msg), blob_len(msg));
if (tb[DUMP_DELTA])
delta = blobmsg_get_u32(tb[DUMP_DELTA]);
iface_dump(delta);
ubus_send_reply(ctx, req, b.head);
return UBUS_STATUS_OK;
}
static const struct ubus_method topology_methods[] = {
//UBUS_METHOD_NOARG("interface", ubus_interface_cb),
UBUS_METHOD_NOARG("mac", ubus_mac_cb),
UBUS_METHOD_NOARG("port", ubus_port_cb),
};
static struct ubus_object_type ubus_object_type =
UBUS_OBJECT_TYPE("topology", topology_methods);
static struct ubus_object ubus_object = {
.name = "topology",
.type = &ubus_object_type,
.methods = topology_methods,
.n_methods = ARRAY_SIZE(topology_methods),
};
static int
ubus_watch_match(const char *path)
{
int i;
for (i = 0; i < ARRAY_SIZE(ubus_watch_list); i++) {
int len = strlen(ubus_watch_list[i].path);
if (ubus_watch_list[i].wildcard && strncmp(path, ubus_watch_list[i].path, len))
continue;
if (!ubus_watch_list[i].wildcard && strcmp(path, ubus_watch_list[i].path))
continue;
return 0;
}
return -1;
}
enum {
INTERFACE,
__INTERFACE_MAX,
};
static const struct blobmsg_policy interface_policy[__INTERFACE_MAX] = {
[INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_ARRAY },
};
static void
ubus_netifd_dump_cb(struct ubus_request *req,
int type, struct blob_attr *msg)
{
struct blob_attr *tb[__INTERFACE_MAX];
struct blob_attr *iter;
int rem;
blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blob_data(msg), blob_len(msg));
if (!tb[INTERFACE])
return;
blobmsg_for_each_attr(iter, tb[INTERFACE], rem)
interface_update(iter, 0);
}
static int
ubus_notify_cb(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
if (0) {
char *str;
str = blobmsg_format_json(msg, true);
ULOG_INFO("Received ubus notify '%s': %s\n", method, str);
free(str);
}
if (!strcmp(method, "dhcp.ack"))
dhcpv4_ack(msg);
else if (!strcmp(method, "dhcp.release"))
dhcpv4_release(msg);
else if (!strcmp(method, "interface.update"))
interface_update(msg, 1);
else if (!strcmp(method, "interface.down"))
interface_down(msg);
return 0;
}
static void
ubus_event_handler_cb(struct ubus_context *ctx, struct ubus_event_handler *ev,
const char *type, struct blob_attr *msg)
{
struct blob_attr *tb[__EVENT_MAX];
const char *path;
uint32_t id;
if (strcmp("ubus.object.add", type))
return;
if (0) {
char *str;
str = blobmsg_format_json(msg, true);
ULOG_INFO("Received ubus notify '%s': %s\n", type, str);
free(str);
}
blobmsg_parse(status_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
if (!tb[EVENT_ID] || !tb[EVENT_PATH])
return;
path = blobmsg_get_string(tb[EVENT_PATH]);
id = blobmsg_get_u32(tb[EVENT_ID]);
if (!ubus_watch_match(path) && !ubus_subscribe(ctx, &subscriber, id))
ULOG_INFO("Subscribe to %s (%u)\n", path, id);
}
static struct ubus_event_handler ubus_event_handler = { .cb = ubus_event_handler_cb };
static void
receive_list_result(struct ubus_context *ctx, struct ubus_object_data *obj,
void *priv)
{
char *path = strdup(obj->path);
if (!ubus_watch_match(path) && !ubus_subscribe(ctx, &subscriber, obj->id))
ULOG_INFO("Subscribe to %s (%u)\n", path, obj->id);
free(path);
}
static void
ubus_connect_handler(struct ubus_context *ctx)
{
uint32_t netifd;
ubus_add_object(ctx, &ubus_object);
ubus_register_event_handler(ctx, &ubus_event_handler, "ubus.object.add");
ubus_register_event_handler(ctx, &ubus_event_handler, "ubus.object.remove");
subscriber.cb = ubus_notify_cb;
if (ubus_register_subscriber(ctx, &subscriber))
ULOG_ERR("failed to register ubus subscriber\n");
ubus_lookup(ctx, NULL, receive_list_result, NULL);
if (!ubus_lookup_id(ctx, "network.interface", &netifd))
ubus_invoke(ctx, netifd, "dump", NULL, ubus_netifd_dump_cb, NULL, 5000);
}
void
ubus_init(void)
{
conn.cb = ubus_connect_handler;
ubus_auto_connect(&conn);
}
void
ubus_uninit(void)
{
ubus_auto_shutdown(&conn);
}

150
feeds/ucentral/udevmand/src/udevmand.h Normal file
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#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <glob.h>
#include <time.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/nl80211.h>
#include <linux/limits.h>
#include <linux/sockios.h>
#include <linux/ethtool.h>
#include <netlink/msg.h>
#include <netlink/attr.h>
#include <netlink/socket.h>
#include <netlink/genl/ctrl.h>
#include <netlink/genl/genl.h>
#include <libubox/avl.h>
#include <libubox/avl-cmp.h>
#include <libubox/uloop.h>
#include <libubox/utils.h>
#include <libubox/ulog.h>
#include <libubox/blobmsg_json.h>
#include <libubox/vlist.h>
#include <libubus.h>
#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
#define MAC_VAR(x) x[0], x[1], x[2], x[3], x[4], x[5]
#define IP_FMT "%d.%d.%d.%d"
#define IP_VAR(x) x[0], x[1], x[2], x[3]
struct nl_socket {
struct uloop_fd uloop;
struct nl_sock *sock;
int bufsize;
};
struct mac {
uint8_t *addr;
struct avl_node avl;
char interface[64];
char *ethers;
struct timespec ts;
struct list_head neigh4;
struct list_head neigh6;
struct list_head dhcpv4;
struct list_head bridge_mac;
};
struct neigh {
struct avl_node avl;
struct list_head list;
uint8_t *ip;
int ip_ver;
int iface;
char ifname[IF_NAMESIZE];
struct uloop_timeout ageing;
};
struct dhcpv4 {
struct avl_node avl;
struct list_head mac;
uint8_t addr[ETH_ALEN];
uint8_t ip[4];
char iface[IF_NAMESIZE];
char name[];
};
struct interface {
struct avl_node avl;
char *iface;
char *device;
};
struct bridge_mac {
struct vlist_node vlist;
struct list_head mac;
char bridge[IF_NAMESIZE];
char ifname[IF_NAMESIZE];
uint8_t addr[ETH_ALEN];
__u8 port_no;
};
int avl_mac_cmp(const void *k1, const void *k2, void *ptr);
extern struct avl_tree mac_tree;
int mac_dump_all(void);
void mac_dump(struct mac *mac, int interface);
struct mac* mac_find(uint8_t *addr);
void mac_update(struct mac *mac, char *iface);
int neigh_init(void);
void neigh_enum(void);
void neigh_flush(void);
void neigh_done(void);
bool nl_status_socket(struct nl_socket *ev, int protocol,
int (*cb)(struct nl_msg *msg, void *arg), void *priv);
int genl_send_and_recv(struct nl_socket *ev, struct nl_msg * msg);
extern struct blob_buf b;
void blobmsg_add_iface(struct blob_buf *bbuf, char *name, int index);
void blobmsg_add_iftype(struct blob_buf *bbuf, const char *name, const uint32_t iftype);
void blobmsg_add_ipv4(struct blob_buf *bbuf, const char *name, const uint8_t* addr);
void blobmsg_add_ipv6(struct blob_buf *bbuf, const char *name, const uint8_t* addr);
void blobmsg_add_mac(struct blob_buf *bbuf, const char *name, const uint8_t* addr);
void ubus_init(void);
void ubus_uninit(void);
void bridge_init(void);
void bridge_dump_if(const char *bridge);
void bridge_flush(void);
void bridge_mac_del(struct bridge_mac *b);
void dhcpv4_ack(struct blob_attr *msg);
void dhcpv4_release(struct blob_attr *msg);
void dhcp_init(void);
void dhcp_done(void);
void dhcpv4_del(struct dhcpv4 *dhcpv4);
int interface_dump(void);
void interface_update(struct blob_attr *msg, int raw);
void interface_down(struct blob_attr *msg);
char *interface_resolve(char *device);
void interface_done(void);
void ethers_init(void);
void iface_done(void);
void iface_dump(int delta);