*
* Connection Manager
*
- * Copyright (C) 2007 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2009 Intel Corporation. All rights reserved.
*
* 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
#include <config.h>
#endif
-#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <arpa/inet.h>
-
+#include <netinet/ether.h>
+#include <net/if_arp.h>
#include <linux/if.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include "connman.h"
-struct rtnl_data {
- unsigned ifi_flags;
+#define print(arg...) do { } while (0)
+//#define print(arg...) connman_info(arg)
+
+struct watch_data {
+ unsigned int id;
+ int index;
+ connman_rtnl_operstate_cb_t operstate;
+ connman_rtnl_link_cb_t newlink;
+ void *user_data;
};
-static struct rtnl_data *get_rtnl_data(struct connman_iface *iface)
+static GSList *watch_list = NULL;
+static unsigned int watch_id = 0;
+
+/**
+ * connman_rtnl_add_operstate_watch:
+ * @index: network device index
+ * @callback: callback function
+ * @user_data: callback data;
+ *
+ * Add a new RTNL watch for operation state events
+ *
+ * Returns: %0 on failure and a unique id on success
+ */
+unsigned int connman_rtnl_add_operstate_watch(int index,
+ connman_rtnl_operstate_cb_t callback, void *user_data)
+{
+ struct watch_data *watch;
+
+ watch = g_try_new0(struct watch_data, 1);
+ if (watch == NULL)
+ return 0;
+
+ watch->id = ++watch_id;
+ watch->index = index;
+
+ watch->operstate = callback;
+ watch->user_data = user_data;
+
+ watch_list = g_slist_prepend(watch_list, watch);
+
+ DBG("id %d", watch->id);
+
+ if (callback) {
+ unsigned char operstate = 0;
+
+ if (operstate > 0)
+ callback(operstate, user_data);
+ }
+
+ return watch->id;
+}
+
+/**
+ * connman_rtnl_add_newlink_watch:
+ * @index: network device index
+ * @callback: callback function
+ * @user_data: callback data;
+ *
+ * Add a new RTNL watch for newlink events
+ *
+ * Returns: %0 on failure and a unique id on success
+ */
+unsigned int connman_rtnl_add_newlink_watch(int index,
+ connman_rtnl_link_cb_t callback, void *user_data)
+{
+ struct watch_data *watch;
+
+ watch = g_try_new0(struct watch_data, 1);
+ if (watch == NULL)
+ return 0;
+
+ watch->id = ++watch_id;
+ watch->index = index;
+
+ watch->newlink = callback;
+ watch->user_data = user_data;
+
+ watch_list = g_slist_prepend(watch_list, watch);
+
+ DBG("id %d", watch->id);
+
+ if (callback) {
+ unsigned int flags = __connman_ipconfig_get_flags(index);
+
+ if (flags > 0)
+ callback(flags, 0, user_data);
+ }
+
+ return watch->id;
+}
+
+/**
+ * connman_rtnl_remove_watch:
+ * @id: watch identifier
+ *
+ * Remove the RTNL watch for the identifier
+ */
+void connman_rtnl_remove_watch(unsigned int id)
+{
+ GSList *list;
+
+ DBG("id %d", id);
+
+ if (id == 0)
+ return;
+
+ for (list = watch_list; list; list = list->next) {
+ struct watch_data *watch = list->data;
+
+ if (watch->id == id) {
+ watch_list = g_slist_remove(watch_list, watch);
+ g_free(watch);
+ break;
+ }
+ }
+}
+
+static void trigger_rtnl(int index, void *user_data)
+{
+ struct connman_rtnl *rtnl = user_data;
+
+ if (rtnl->newlink) {
+ unsigned short type = __connman_ipconfig_get_type(index);
+ unsigned int flags = __connman_ipconfig_get_flags(index);
+
+ rtnl->newlink(type, index, flags, 0);
+ }
+
+ if (rtnl->newgateway) {
+ const char *gateway = __connman_ipconfig_get_gateway(index);
+
+ if (gateway != NULL)
+ rtnl->newgateway(index, gateway);
+ }
+}
+
+static GSList *rtnl_list = NULL;
+
+static gint compare_priority(gconstpointer a, gconstpointer b)
+{
+ const struct connman_rtnl *rtnl1 = a;
+ const struct connman_rtnl *rtnl2 = b;
+
+ return rtnl2->priority - rtnl1->priority;
+}
+
+/**
+ * connman_rtnl_register:
+ * @rtnl: RTNL module
+ *
+ * Register a new RTNL module
+ *
+ * Returns: %0 on success
+ */
+int connman_rtnl_register(struct connman_rtnl *rtnl)
+{
+ DBG("rtnl %p name %s", rtnl, rtnl->name);
+
+ rtnl_list = g_slist_insert_sorted(rtnl_list, rtnl,
+ compare_priority);
+
+ __connman_ipconfig_foreach(trigger_rtnl, rtnl);
+
+ return 0;
+}
+
+/**
+ * connman_rtnl_unregister:
+ * @rtnl: RTNL module
+ *
+ * Remove a previously registered RTNL module
+ */
+void connman_rtnl_unregister(struct connman_rtnl *rtnl)
+{
+ DBG("rtnl %p name %s", rtnl, rtnl->name);
+
+ rtnl_list = g_slist_remove(rtnl_list, rtnl);
+}
+
+static const char *operstate2str(unsigned char operstate)
+{
+ switch (operstate) {
+ case IF_OPER_UNKNOWN:
+ return "UNKNOWN";
+ case IF_OPER_NOTPRESENT:
+ return "NOT-PRESENT";
+ case IF_OPER_DOWN:
+ return "DOWN";
+ case IF_OPER_LOWERLAYERDOWN:
+ return "LOWER-LAYER-DOWN";
+ case IF_OPER_TESTING:
+ return "TESTING";
+ case IF_OPER_DORMANT:
+ return "DORMANT";
+ case IF_OPER_UP:
+ return "UP";
+ }
+
+ return "";
+}
+
+static void extract_link(struct ifinfomsg *msg, int bytes,
+ const char **ifname, unsigned char *operstate)
+{
+ struct rtnl_link_stats stats;
+ struct rtattr *attr;
+
+ for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
+ attr = RTA_NEXT(attr, bytes)) {
+ switch (attr->rta_type) {
+ case IFLA_IFNAME:
+ if (ifname != NULL)
+ *ifname = RTA_DATA(attr);
+ break;
+ case IFLA_OPERSTATE:
+ if (operstate != NULL)
+ *operstate = *((unsigned char *) RTA_DATA(attr));
+ break;
+ case IFLA_LINKMODE:
+ break;
+ case IFLA_STATS:
+ memcpy(&stats, RTA_DATA(attr),
+ sizeof(struct rtnl_link_stats));
+ connman_info("%s {RX} %d packets %d bytes", *ifname,
+ stats.rx_packets, stats.rx_bytes);
+ connman_info("%s {TX} %d packets %d bytes", *ifname,
+ stats.tx_packets, stats.tx_bytes);
+ break;
+ }
+ }
+}
+
+static void process_newlink(unsigned short type, int index, unsigned flags,
+ unsigned change, struct ifinfomsg *msg, int bytes)
{
- if ((iface->flags & CONNMAN_IFACE_FLAG_RTNL) == 0)
- return NULL;
+ unsigned char operstate = 0xff;
+ const char *ifname = NULL;
+ GSList *list;
+
+ switch (type) {
+ case ARPHRD_ETHER:
+ case ARPHRD_LOOPBACK:
+ case ARPHRD_NONE:
+ __connman_ipconfig_newlink(index, type, flags);
+ break;
+ }
+
+ extract_link(msg, bytes, &ifname, &operstate);
+
+ if (operstate != 0xff)
+ connman_info("%s {newlink} index %d operstate %d <%s>",
+ ifname, index, operstate,
+ operstate2str(operstate));
+
+ for (list = rtnl_list; list; list = list->next) {
+ struct connman_rtnl *rtnl = list->data;
+
+ if (rtnl->newlink)
+ rtnl->newlink(type, index, flags, change);
+ }
+
+ for (list = watch_list; list; list = list->next) {
+ struct watch_data *watch = list->data;
- if (iface->rtnl_data == NULL)
- iface->rtnl_data = g_try_new0(struct rtnl_data, 1);
+ if (watch->index != index)
+ continue;
- return iface->rtnl_data;
+ if (operstate != 0xff && watch->operstate)
+ watch->operstate(operstate, watch->user_data);
+
+ if (watch->newlink)
+ watch->newlink(flags, change, watch->user_data);
+ }
}
-static inline void print_inet(struct rtattr *attr, const char *name, int family)
+static void process_dellink(unsigned short type, int index, unsigned flags,
+ unsigned change, struct ifinfomsg *msg, int bytes)
{
- if (family == AF_INET) {
+ unsigned char operstate = 0xff;
+ const char *ifname = NULL;
+ GSList *list;
+
+ extract_link(msg, bytes, &ifname, &operstate);
+
+ if (operstate != 0xff)
+ connman_info("%s {dellink} index %d operstate %d <%s>",
+ ifname, index, operstate,
+ operstate2str(operstate));
+
+ for (list = watch_list; list; list = list->next) {
+ struct watch_data *watch = list->data;
+
+ if (watch->index != index)
+ continue;
+
+ if (operstate != 0xff && watch->operstate)
+ watch->operstate(operstate, watch->user_data);
+ }
+
+ for (list = rtnl_list; list; list = list->next) {
+ struct connman_rtnl *rtnl = list->data;
+
+ if (rtnl->dellink)
+ rtnl->dellink(type, index, flags, change);
+ }
+
+ switch (type) {
+ case ARPHRD_ETHER:
+ case ARPHRD_LOOPBACK:
+ case ARPHRD_NONE:
+ __connman_ipconfig_dellink(index);
+ break;
+ }
+}
+
+static void extract_addr(struct ifaddrmsg *msg, int bytes,
+ const char **label,
+ struct in_addr *local,
+ struct in_addr *address,
+ struct in_addr *broadcast)
+{
+ struct rtattr *attr;
+
+ for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
+ attr = RTA_NEXT(attr, bytes)) {
+ switch (attr->rta_type) {
+ case IFA_ADDRESS:
+ if (address != NULL)
+ *address = *((struct in_addr *) RTA_DATA(attr));
+ break;
+ case IFA_LOCAL:
+ if (local != NULL)
+ *local = *((struct in_addr *) RTA_DATA(attr));
+ break;
+ case IFA_BROADCAST:
+ if (broadcast != NULL)
+ *broadcast = *((struct in_addr *) RTA_DATA(attr));
+ break;
+ case IFA_LABEL:
+ if (label != NULL)
+ *label = RTA_DATA(attr);
+ break;
+ }
+ }
+}
+
+static void process_newaddr(unsigned char family, unsigned char prefixlen,
+ int index, struct ifaddrmsg *msg, int bytes)
+{
+ struct in_addr address = { INADDR_ANY };
+ const char *label = NULL;
+
+ if (family != AF_INET)
+ return;
+
+ extract_addr(msg, bytes, &label, &address, NULL, NULL);
+
+ __connman_ipconfig_newaddr(index, label,
+ prefixlen, inet_ntoa(address));
+}
+
+static void process_deladdr(unsigned char family, unsigned char prefixlen,
+ int index, struct ifaddrmsg *msg, int bytes)
+{
+ struct in_addr address = { INADDR_ANY };
+ const char *label = NULL;
+
+ if (family != AF_INET)
+ return;
+
+ extract_addr(msg, bytes, &label, &address, NULL, NULL);
+
+ __connman_ipconfig_deladdr(index, label,
+ prefixlen, inet_ntoa(address));
+}
+
+static void extract_route(struct rtmsg *msg, int bytes, int *index,
+ struct in_addr *dst,
+ struct in_addr *gateway)
+{
+ struct rtattr *attr;
+
+ for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
+ attr = RTA_NEXT(attr, bytes)) {
+ switch (attr->rta_type) {
+ case RTA_DST:
+ if (dst != NULL)
+ *dst = *((struct in_addr *) RTA_DATA(attr));
+ break;
+ case RTA_GATEWAY:
+ if (gateway != NULL)
+ *gateway = *((struct in_addr *) RTA_DATA(attr));
+ break;
+ case RTA_OIF:
+ if (index != NULL)
+ *index = *((int *) RTA_DATA(attr));
+ break;
+ }
+ }
+}
+
+static void process_newroute(unsigned char family, unsigned char scope,
+ struct rtmsg *msg, int bytes)
+{
+ GSList *list;
+ struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
+ char dststr[16], gatewaystr[16];
+ int index = -1;
+
+ if (family != AF_INET)
+ return;
+
+ extract_route(msg, bytes, &index, &dst, &gateway);
+
+ inet_ntop(family, &dst, dststr, sizeof(dststr));
+ inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
+
+ __connman_ipconfig_newroute(index, scope, dststr, gatewaystr);
+
+ if (scope != RT_SCOPE_UNIVERSE || dst.s_addr != INADDR_ANY)
+ return;
+
+ for (list = rtnl_list; list; list = list->next) {
+ struct connman_rtnl *rtnl = list->data;
+
+ if (rtnl->newgateway)
+ rtnl->newgateway(index, gatewaystr);
+ }
+}
+
+static void process_delroute(unsigned char family, unsigned char scope,
+ struct rtmsg *msg, int bytes)
+{
+ GSList *list;
+ struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
+ char dststr[16], gatewaystr[16];
+ int index = -1;
+
+ if (family != AF_INET)
+ return;
+
+ extract_route(msg, bytes, &index, &dst, &gateway);
+
+ inet_ntop(family, &dst, dststr, sizeof(dststr));
+ inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
+
+ __connman_ipconfig_delroute(index, scope, dststr, gatewaystr);
+
+ if (scope != RT_SCOPE_UNIVERSE || dst.s_addr != INADDR_ANY)
+ return;
+
+ for (list = rtnl_list; list; list = list->next) {
+ struct connman_rtnl *rtnl = list->data;
+
+ if (rtnl->delgateway)
+ rtnl->delgateway(index, gatewaystr);
+ }
+}
+
+static inline void print_ether(struct rtattr *attr, const char *name)
+{
+ int len = (int) RTA_PAYLOAD(attr);
+
+ if (len == ETH_ALEN) {
+ struct ether_addr eth;
+ memcpy(ð, RTA_DATA(attr), ETH_ALEN);
+ print(" attr %s (len %d) %s\n", name, len, ether_ntoa(ð));
+ } else
+ print(" attr %s (len %d)\n", name, len);
+}
+
+static inline void print_inet(struct rtattr *attr, const char *name,
+ unsigned char family)
+{
+ int len = (int) RTA_PAYLOAD(attr);
+
+ if (family == AF_INET && len == sizeof(struct in_addr)) {
struct in_addr addr;
addr = *((struct in_addr *) RTA_DATA(attr));
- printf(" attr %s (len %jd) %s\n",
- name, RTA_PAYLOAD(attr), inet_ntoa(addr));
+ print(" attr %s (len %d) %s\n", name, len, inet_ntoa(addr));
} else
- printf(" attr %s (len %jd)\n", name, RTA_PAYLOAD(attr));
+ print(" attr %s (len %d)\n", name, len);
}
-static inline void print_char(struct rtattr *attr, const char *name)
+static inline void print_string(struct rtattr *attr, const char *name)
{
- printf(" attr %s (len %jd) %s\n", name, RTA_PAYLOAD(attr),
+ print(" attr %s (len %d) %s\n", name, (int) RTA_PAYLOAD(attr),
(char *) RTA_DATA(attr));
}
static inline void print_byte(struct rtattr *attr, const char *name)
{
- printf(" attr %s (len %jd) 0x%02x\n", name, RTA_PAYLOAD(attr),
+ print(" attr %s (len %d) 0x%02x\n", name, (int) RTA_PAYLOAD(attr),
*((unsigned char *) RTA_DATA(attr)));
}
+static inline void print_integer(struct rtattr *attr, const char *name)
+{
+ print(" attr %s (len %d) %d\n", name, (int) RTA_PAYLOAD(attr),
+ *((int *) RTA_DATA(attr)));
+}
+
static inline void print_attr(struct rtattr *attr, const char *name)
{
- if (name)
- printf(" attr %s (len %jd)\n", name, RTA_PAYLOAD(attr));
+ int len = (int) RTA_PAYLOAD(attr);
+
+ if (name && len > 0)
+ print(" attr %s (len %d)\n", name, len);
else
- printf(" attr %d (len %jd)\n",
- attr->rta_type, RTA_PAYLOAD(attr));
+ print(" attr %d (len %d)\n", attr->rta_type, len);
}
static void rtnl_link(struct nlmsghdr *hdr)
{
- struct connman_iface *iface;
- struct rtnl_data *data;
struct ifinfomsg *msg;
struct rtattr *attr;
int bytes;
msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
bytes = IFLA_PAYLOAD(hdr);
- DBG("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
-
- iface = __connman_iface_find(msg->ifi_index);
- if (iface == NULL)
- return;
-
- data = get_rtnl_data(iface);
- if (data == NULL)
- return;
-
- if ((data->ifi_flags & IFF_RUNNING) != (msg->ifi_flags & IFF_RUNNING)) {
- if (msg->ifi_flags & IFF_RUNNING)
- connman_iface_indicate_carrier_on(iface);
- else
- connman_iface_indicate_carrier_off(iface);
- }
-
- if ((data->ifi_flags & IFF_UP) != (msg->ifi_flags & IFF_UP)) {
- if (msg->ifi_flags & IFF_UP)
- connman_iface_indicate_enabled(iface);
- else
- connman_iface_indicate_disabled(iface);
- }
-
- data->ifi_flags = msg->ifi_flags;
+ print("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
attr = RTA_NEXT(attr, bytes)) {
switch (attr->rta_type) {
case IFLA_ADDRESS:
- print_attr(attr, "address");
+ print_ether(attr, "address");
break;
case IFLA_BROADCAST:
- print_attr(attr, "broadcast");
+ print_ether(attr, "broadcast");
break;
case IFLA_IFNAME:
- print_char(attr, "ifname");
+ print_string(attr, "ifname");
break;
case IFLA_MTU:
- print_attr(attr, "mtu");
+ print_integer(attr, "mtu");
break;
case IFLA_LINK:
print_attr(attr, "link");
print_attr(attr, "master");
break;
case IFLA_WIRELESS:
- if (iface->driver->rtnl_wireless)
- iface->driver->rtnl_wireless(iface,
- RTA_DATA(attr), RTA_PAYLOAD(attr));
+ print_attr(attr, "wireless");
break;
case IFLA_PROTINFO:
print_attr(attr, "protinfo");
break;
case IFLA_TXQLEN:
- print_attr(attr, "txqlen");
+ print_integer(attr, "txqlen");
break;
case IFLA_MAP:
print_attr(attr, "map");
}
}
+static void rtnl_newlink(struct nlmsghdr *hdr)
+{
+ struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
+
+ rtnl_link(hdr);
+
+ process_newlink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
+ msg->ifi_change, msg, IFA_PAYLOAD(hdr));
+}
+
+static void rtnl_dellink(struct nlmsghdr *hdr)
+{
+ struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
+
+ rtnl_link(hdr);
+
+ process_dellink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
+ msg->ifi_change, msg, IFA_PAYLOAD(hdr));
+}
+
static void rtnl_addr(struct nlmsghdr *hdr)
{
- struct connman_iface *iface;
- struct rtnl_data *data;
struct ifaddrmsg *msg;
struct rtattr *attr;
int bytes;
msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
bytes = IFA_PAYLOAD(hdr);
- DBG("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
-
- iface = __connman_iface_find(msg->ifa_index);
- if (iface == NULL)
- return;
-
- data = get_rtnl_data(iface);
- if (data == NULL)
- return;
+ print("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
attr = RTA_NEXT(attr, bytes)) {
print_inet(attr, "local", msg->ifa_family);
break;
case IFA_LABEL:
- print_char(attr, "label");
+ print_string(attr, "label");
break;
case IFA_BROADCAST:
print_inet(attr, "broadcast", msg->ifa_family);
}
}
+static void rtnl_newaddr(struct nlmsghdr *hdr)
+{
+ struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
+
+ rtnl_addr(hdr);
+
+ process_newaddr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
+ msg, IFA_PAYLOAD(hdr));
+}
+
+static void rtnl_deladdr(struct nlmsghdr *hdr)
+{
+ struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
+
+ rtnl_addr(hdr);
+
+ process_deladdr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
+ msg, IFA_PAYLOAD(hdr));
+}
+
static void rtnl_route(struct nlmsghdr *hdr)
{
struct rtmsg *msg;
msg = (struct rtmsg *) NLMSG_DATA(hdr);
bytes = RTM_PAYLOAD(hdr);
- DBG("rtm_family %d rtm_flags 0x%04x", msg->rtm_family, msg->rtm_flags);
+ print("rtm_family %d rtm_table %d rtm_protocol %d",
+ msg->rtm_family, msg->rtm_table, msg->rtm_protocol);
+ print("rtm_scope %d rtm_type %d rtm_flags 0x%04x",
+ msg->rtm_scope, msg->rtm_type, msg->rtm_flags);
for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
attr = RTA_NEXT(attr, bytes)) {
print_inet(attr, "src", msg->rtm_family);
break;
case RTA_IIF:
- print_char(attr, "iif");
+ print_string(attr, "iif");
break;
case RTA_OIF:
- print_attr(attr, "oif");
+ print_integer(attr, "oif");
break;
case RTA_GATEWAY:
print_inet(attr, "gateway", msg->rtm_family);
print_attr(attr, "metrics");
break;
case RTA_TABLE:
- print_attr(attr, "table");
+ print_integer(attr, "table");
break;
default:
print_attr(attr, NULL);
}
}
+static void rtnl_newroute(struct nlmsghdr *hdr)
+{
+ struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
+
+ rtnl_route(hdr);
+
+ if (msg->rtm_table == RT_TABLE_MAIN &&
+ msg->rtm_protocol == RTPROT_BOOT &&
+ msg->rtm_type == RTN_UNICAST)
+ process_newroute(msg->rtm_family, msg->rtm_scope,
+ msg, RTM_PAYLOAD(hdr));
+}
+
+static void rtnl_delroute(struct nlmsghdr *hdr)
+{
+ struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
+
+ rtnl_route(hdr);
+
+ if (msg->rtm_table == RT_TABLE_MAIN &&
+ msg->rtm_protocol == RTPROT_BOOT &&
+ msg->rtm_type == RTN_UNICAST)
+ process_delroute(msg->rtm_family, msg->rtm_scope,
+ msg, RTM_PAYLOAD(hdr));
+}
+
+static const char *type2string(uint16_t type)
+{
+ switch (type) {
+ case NLMSG_NOOP:
+ return "NOOP";
+ case NLMSG_ERROR:
+ return "ERROR";
+ case NLMSG_DONE:
+ return "DONE";
+ case NLMSG_OVERRUN:
+ return "OVERRUN";
+ case RTM_GETLINK:
+ return "GETLINK";
+ case RTM_NEWLINK:
+ return "NEWLINK";
+ case RTM_DELLINK:
+ return "DELLINK";
+ case RTM_NEWADDR:
+ return "NEWADDR";
+ case RTM_DELADDR:
+ return "DELADDR";
+ case RTM_GETROUTE:
+ return "GETROUTE";
+ case RTM_NEWROUTE:
+ return "NEWROUTE";
+ case RTM_DELROUTE:
+ return "DELROUTE";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static GIOChannel *channel = NULL;
+
+struct rtnl_request {
+ struct nlmsghdr hdr;
+ struct rtgenmsg msg;
+};
+#define RTNL_REQUEST_SIZE (sizeof(struct nlmsghdr) + sizeof(struct rtgenmsg))
+
+static GSList *request_list = NULL;
+static guint32 request_seq = 0;
+
+static struct rtnl_request *find_request(guint32 seq)
+{
+ GSList *list;
+
+ for (list = request_list; list; list = list->next) {
+ struct rtnl_request *req = list->data;
+
+ if (req->hdr.nlmsg_seq == seq)
+ return req;
+ }
+
+ return NULL;
+}
+
+static int send_request(struct rtnl_request *req)
+{
+ struct sockaddr_nl addr;
+ int sk;
+
+ DBG("%s len %d type %d flags 0x%04x seq %d",
+ type2string(req->hdr.nlmsg_type),
+ req->hdr.nlmsg_len, req->hdr.nlmsg_type,
+ req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
+
+ sk = g_io_channel_unix_get_fd(channel);
+
+ memset(&addr, 0, sizeof(addr));
+ addr.nl_family = AF_NETLINK;
+
+ return sendto(sk, req, req->hdr.nlmsg_len, 0,
+ (struct sockaddr *) &addr, sizeof(addr));
+}
+
+static int queue_request(struct rtnl_request *req)
+{
+ request_list = g_slist_append(request_list, req);
+
+ if (g_slist_length(request_list) > 1)
+ return 0;
+
+ return send_request(req);
+}
+
+static int process_response(guint32 seq)
+{
+ struct rtnl_request *req;
+
+ DBG("seq %d", seq);
+
+ req = find_request(seq);
+ if (req != NULL) {
+ request_list = g_slist_remove(request_list, req);
+ g_free(req);
+ }
+
+ req = g_slist_nth_data(request_list, 0);
+ if (req == NULL)
+ return 0;
+
+ return send_request(req);
+}
+
static void rtnl_message(void *buf, size_t len)
{
DBG("buf %p len %zd", buf, len);
if (!NLMSG_OK(hdr, len))
break;
- DBG("len %d type %d flags 0x%04x seq %d",
+ DBG("%s len %d type %d flags 0x%04x seq %d",
+ type2string(hdr->nlmsg_type),
hdr->nlmsg_len, hdr->nlmsg_type,
hdr->nlmsg_flags, hdr->nlmsg_seq);
switch (hdr->nlmsg_type) {
case NLMSG_NOOP:
- DBG("NOOP");
+ case NLMSG_OVERRUN:
+ return;
+ case NLMSG_DONE:
+ process_response(hdr->nlmsg_seq);
return;
case NLMSG_ERROR:
err = NLMSG_DATA(hdr);
- DBG("ERROR %d (%s)", -err->error,
+ DBG("error %d (%s)", -err->error,
strerror(-err->error));
return;
- case NLMSG_DONE:
- DBG("DONE");
- return;
- case NLMSG_OVERRUN:
- DBG("OVERRUN");
- return;
case RTM_NEWLINK:
- DBG("NEWLINK");
- rtnl_link(hdr);
+ rtnl_newlink(hdr);
break;
case RTM_DELLINK:
- DBG("DELLINK");
- rtnl_link(hdr);
+ rtnl_dellink(hdr);
break;
case RTM_NEWADDR:
- DBG("NEWADDR");
- rtnl_addr(hdr);
+ rtnl_newaddr(hdr);
break;
case RTM_DELADDR:
- DBG("DELADDR");
- rtnl_addr(hdr);
+ rtnl_deladdr(hdr);
break;
case RTM_NEWROUTE:
- DBG("NEWROUTE");
- rtnl_route(hdr);
+ rtnl_newroute(hdr);
break;
case RTM_DELROUTE:
- DBG("DELROUTE");
- rtnl_route(hdr);
- break;
- default:
- DBG("type %d", hdr->nlmsg_type);
+ rtnl_delroute(hdr);
break;
}
static gboolean netlink_event(GIOChannel *chan,
GIOCondition cond, gpointer data)
{
- unsigned char buf[256];
+ unsigned char buf[4096];
gsize len;
GIOError err;
return TRUE;
}
-static GIOChannel *channel = NULL;
+static int send_getlink(void)
+{
+ struct rtnl_request *req;
+
+ DBG("");
+
+ req = g_try_malloc0(RTNL_REQUEST_SIZE);
+ if (req == NULL)
+ return -ENOMEM;
+
+ req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
+ req->hdr.nlmsg_type = RTM_GETLINK;
+ req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ req->hdr.nlmsg_pid = 0;
+ req->hdr.nlmsg_seq = request_seq++;
+ req->msg.rtgen_family = AF_INET;
+
+ return queue_request(req);
+}
-int __connman_rtnl_send(const void *buf, size_t len)
+static int send_getaddr(void)
{
- struct sockaddr_nl addr;
- int sk;
+ struct rtnl_request *req;
- DBG("buf %p len %zd", buf, len);
+ DBG("");
- sk = g_io_channel_unix_get_fd(channel);
+ req = g_try_malloc0(RTNL_REQUEST_SIZE);
+ if (req == NULL)
+ return -ENOMEM;
- memset(&addr, 0, sizeof(addr));
- addr.nl_family = AF_NETLINK;
+ req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
+ req->hdr.nlmsg_type = RTM_GETADDR;
+ req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ req->hdr.nlmsg_pid = 0;
+ req->hdr.nlmsg_seq = request_seq++;
+ req->msg.rtgen_family = AF_INET;
+
+ return queue_request(req);
+}
+
+static int send_getroute(void)
+{
+ struct rtnl_request *req;
+
+ DBG("");
- return sendto(sk, buf, len, 0,
- (struct sockaddr *) &addr, sizeof(addr));
+ req = g_try_malloc0(RTNL_REQUEST_SIZE);
+ if (req == NULL)
+ return -ENOMEM;
+
+ req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
+ req->hdr.nlmsg_type = RTM_GETROUTE;
+ req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ req->hdr.nlmsg_pid = 0;
+ req->hdr.nlmsg_seq = request_seq++;
+ req->msg.rtgen_family = AF_INET;
+
+ return queue_request(req);
}
int __connman_rtnl_init(void)
memset(&addr, 0, sizeof(addr));
addr.nl_family = AF_NETLINK;
- addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR;
- //addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE;
+ addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE;
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
close(sk);
channel = g_io_channel_unix_new(sk);
g_io_channel_set_close_on_unref(channel, TRUE);
- g_io_add_watch(channel,
- G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
- netlink_event, NULL);
+ g_io_add_watch(channel, G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
+ netlink_event, NULL);
return 0;
}
+void __connman_rtnl_start(void)
+{
+ DBG("");
+
+ send_getlink();
+ send_getaddr();
+ send_getroute();
+}
+
void __connman_rtnl_cleanup(void)
{
+ GSList *list;
+
DBG("");
+ for (list = watch_list; list; list = list->next) {
+ struct watch_data *watch = list->data;
+
+ DBG("removing watch %d", watch->id);
+
+ g_free(watch);
+ list->data = NULL;
+ }
+
+ g_slist_free(watch_list);
+ watch_list = NULL;
+
+ for (list = request_list; list; list = list->next) {
+ struct rtnl_request *req = list->data;
+
+ DBG("%s len %d type %d flags 0x%04x seq %d",
+ type2string(req->hdr.nlmsg_type),
+ req->hdr.nlmsg_len, req->hdr.nlmsg_type,
+ req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
+
+ g_free(req);
+ list->data = NULL;
+ }
+
+ g_slist_free(request_list);
+ request_list = NULL;
+
g_io_channel_shutdown(channel, TRUE, NULL);
g_io_channel_unref(channel);
projects / framework / connectivity / connman.git / blobdiff