#include <config.h>
#endif
+#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netpacket/packet.h>
+#include <netinet/if_ether.h>
#include <net/ethernet.h>
-#include <net/if_arp.h>
#include <linux/if.h>
#include <linux/filter.h>
#include "gdhcp.h"
#include "common.h"
+#include "ipv4ll.h"
#define DISCOVER_TIMEOUT 3
-#define DISCOVER_RETRIES 3
+#define DISCOVER_RETRIES 10
#define REQUEST_TIMEOUT 3
-#define REQUEST_RETRIES 3
+#define REQUEST_RETRIES 5
typedef enum _listen_mode {
L_NONE,
L2,
L3,
+ L_ARP,
} ListenMode;
typedef enum _dhcp_client_state {
RENEWING,
REBINDING,
RELEASED,
+ IPV4LL_PROBE,
+ IPV4LL_ANNOUNCE,
+ IPV4LL_MONITOR,
+ IPV4LL_DEFEND,
} ClientState;
struct _GDHCPClient {
- gint ref_count;
+ int ref_count;
GDHCPType type;
ClientState state;
int ifindex;
int listener_sockfd;
uint8_t retry_times;
uint8_t ack_retry_times;
+ uint8_t conflicts;
guint timeout;
guint listener_watch;
GIOChannel *listener_channel;
GHashTable *send_value_hash;
GDHCPClientEventFunc lease_available_cb;
gpointer lease_available_data;
+ GDHCPClientEventFunc ipv4ll_available_cb;
+ gpointer ipv4ll_available_data;
GDHCPClientEventFunc no_lease_cb;
gpointer no_lease_data;
GDHCPClientEventFunc lease_lost_cb;
gpointer lease_lost_data;
+ GDHCPClientEventFunc ipv4ll_lost_cb;
+ gpointer ipv4ll_lost_data;
GDHCPClientEventFunc address_conflict_cb;
gpointer address_conflict_data;
GDHCPDebugFunc debug_func;
gpointer debug_data;
+ char *last_address;
+#if defined TIZEN_EXT
+ gboolean init_reboot;
+#endif
};
static inline void debug(GDHCPClient *client, const char *format, ...)
static int send_select(GDHCPClient *dhcp_client)
{
struct dhcp_packet packet;
- struct in_addr addr;
debug(dhcp_client, "sending DHCP select request");
dhcp_add_simple_option(&packet, DHCP_REQUESTED_IP,
dhcp_client->requested_ip);
+#if defined TIZEN_EXT
+ if (dhcp_client->init_reboot != TRUE)
+#endif
dhcp_add_simple_option(&packet, DHCP_SERVER_ID, dhcp_client->server_ip);
add_request_options(dhcp_client, &packet);
add_send_options(dhcp_client, &packet);
- addr.s_addr = dhcp_client->requested_ip;
-
return dhcp_send_raw_packet(&packet, INADDR_ANY, CLIENT_PORT,
INADDR_BROADCAST, SERVER_PORT,
MAC_BCAST_ADDR, dhcp_client->ifindex);
server, SERVER_PORT);
}
-static gboolean interface_is_up(int index)
+static gboolean ipv4ll_probe_timeout(gpointer dhcp_data);
+static int switch_listening_mode(GDHCPClient *dhcp_client,
+ ListenMode listen_mode);
+
+static gboolean send_probe_packet(gpointer dhcp_data)
{
- int sk, err;
- struct ifreq ifr;
- gboolean ret = FALSE;
+ GDHCPClient *dhcp_client;
+ guint timeout;
- sk = socket(PF_INET, SOCK_DGRAM, 0);
- if (sk < 0) {
- perror("Open socket error");
- return FALSE;
+ dhcp_client = dhcp_data;
+ /* if requested_ip is not valid, pick a new address*/
+ if (dhcp_client->requested_ip == 0) {
+ debug(dhcp_client, "pick a new random address");
+ dhcp_client->requested_ip = ipv4ll_random_ip(0);
}
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_ifindex = index;
-
- err = ioctl(sk, SIOCGIFNAME, &ifr);
- if (err < 0) {
- perror("Get interface name error");
- goto done;
- }
+ debug(dhcp_client, "sending IPV4LL probe request");
- err = ioctl(sk, SIOCGIFFLAGS, &ifr);
- if (err < 0) {
- perror("Get interface flags error");
- goto done;
+ if (dhcp_client->retry_times == 1) {
+ dhcp_client->state = IPV4LL_PROBE;
+ switch_listening_mode(dhcp_client, L_ARP);
}
-
- if (ifr.ifr_flags & IFF_UP)
- ret = TRUE;
-
-done:
- close(sk);
-
- return ret;
+ ipv4ll_send_arp_packet(dhcp_client->mac_address, 0,
+ dhcp_client->requested_ip, dhcp_client->ifindex);
+
+ if (dhcp_client->retry_times < PROBE_NUM) {
+ /*add a random timeout in range of PROBE_MIN to PROBE_MAX*/
+ timeout = ipv4ll_random_delay_ms(PROBE_MAX-PROBE_MIN);
+ timeout += PROBE_MIN*1000;
+ } else
+ timeout = (ANNOUNCE_WAIT * 1000);
+
+ dhcp_client->timeout = g_timeout_add_full(G_PRIORITY_HIGH,
+ timeout,
+ ipv4ll_probe_timeout,
+ dhcp_client,
+ NULL);
+ return FALSE;
}
-static char *get_interface_name(int index)
+static gboolean ipv4ll_announce_timeout(gpointer dhcp_data);
+static gboolean ipv4ll_defend_timeout(gpointer dhcp_data);
+
+static gboolean send_announce_packet(gpointer dhcp_data)
{
- struct ifreq ifr;
- int sk, err;
+ GDHCPClient *dhcp_client;
- if (index < 0)
- return NULL;
+ dhcp_client = dhcp_data;
- sk = socket(PF_INET, SOCK_DGRAM, 0);
- if (sk < 0) {
- perror("Open socket error");
- return NULL;
- }
-
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_ifindex = index;
+ debug(dhcp_client, "sending IPV4LL announce request");
- err = ioctl(sk, SIOCGIFNAME, &ifr);
- if (err < 0) {
- perror("Get interface name error");
- close(sk);
- return NULL;
- }
+ ipv4ll_send_arp_packet(dhcp_client->mac_address,
+ dhcp_client->requested_ip,
+ dhcp_client->requested_ip,
+ dhcp_client->ifindex);
- close(sk);
+ if (dhcp_client->timeout > 0)
+ g_source_remove(dhcp_client->timeout);
+ dhcp_client->timeout = 0;
- return g_strdup(ifr.ifr_name);
+ if (dhcp_client->state == IPV4LL_DEFEND) {
+ dhcp_client->timeout =
+ g_timeout_add_seconds_full(G_PRIORITY_HIGH,
+ DEFEND_INTERVAL,
+ ipv4ll_defend_timeout,
+ dhcp_client,
+ NULL);
+ return TRUE;
+ } else
+ dhcp_client->timeout =
+ g_timeout_add_seconds_full(G_PRIORITY_HIGH,
+ ANNOUNCE_INTERVAL,
+ ipv4ll_announce_timeout,
+ dhcp_client,
+ NULL);
+ return TRUE;
}
static void get_interface_mac_address(int index, uint8_t *mac_address)
struct ifreq ifr;
int sk, err;
- sk = socket(PF_INET, SOCK_DGRAM, 0);
+ sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
if (sk < 0) {
perror("Open socket error");
return;
dhcp_client->type = type;
dhcp_client->ifindex = ifindex;
dhcp_client->lease_available_cb = NULL;
+ dhcp_client->ipv4ll_available_cb = NULL;
dhcp_client->no_lease_cb = NULL;
dhcp_client->lease_lost_cb = NULL;
+ dhcp_client->ipv4ll_lost_cb = NULL;
dhcp_client->address_conflict_cb = NULL;
dhcp_client->listener_watch = 0;
dhcp_client->retry_times = 0;
.filter = (struct sock_filter *) filter_instr,
};
- fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
+ fd = socket(PF_PACKET, SOCK_DGRAM | SOCK_CLOEXEC, htons(ETH_P_IP));
if (fd < 0)
return fd;
setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter_prog,
sizeof(filter_prog));
+ memset(&sock, 0, sizeof(sock));
sock.sll_family = AF_PACKET;
sock.sll_protocol = htons(ETH_P_IP);
sock.sll_ifindex = ifindex;
return bytes - (sizeof(packet.ip) + sizeof(packet.udp));
}
+static void ipv4ll_start(GDHCPClient *dhcp_client)
+{
+ guint timeout;
+ int seed;
+
+ if (dhcp_client->timeout > 0) {
+ g_source_remove(dhcp_client->timeout);
+ dhcp_client->timeout = 0;
+ }
+
+ switch_listening_mode(dhcp_client, L_NONE);
+ dhcp_client->type = G_DHCP_IPV4LL;
+ dhcp_client->retry_times = 0;
+ dhcp_client->requested_ip = 0;
+
+ /*try to start with a based mac address ip*/
+ seed = (dhcp_client->mac_address[4] << 8 | dhcp_client->mac_address[4]);
+ dhcp_client->requested_ip = ipv4ll_random_ip(seed);
+
+ /*first wait a random delay to avoid storm of arp request on boot*/
+ timeout = ipv4ll_random_delay_ms(PROBE_WAIT);
+
+ dhcp_client->retry_times++;
+ dhcp_client->timeout = g_timeout_add_full(G_PRIORITY_HIGH,
+ timeout,
+ send_probe_packet,
+ dhcp_client,
+ NULL);
+}
+
+static void ipv4ll_stop(GDHCPClient *dhcp_client)
+{
+
+ switch_listening_mode(dhcp_client, L_NONE);
+
+ if (dhcp_client->timeout > 0)
+ g_source_remove(dhcp_client->timeout);
+
+ if (dhcp_client->listener_watch > 0) {
+ g_source_remove(dhcp_client->listener_watch);
+ dhcp_client->listener_watch = 0;
+ }
+
+ dhcp_client->state = IPV4LL_PROBE;
+ dhcp_client->retry_times = 0;
+ dhcp_client->requested_ip = 0;
+
+ g_free(dhcp_client->assigned_ip);
+ dhcp_client->assigned_ip = NULL;
+}
+
+static int ipv4ll_recv_arp_packet(GDHCPClient *dhcp_client)
+{
+ int bytes;
+ struct ether_arp arp;
+ uint32_t ip_requested;
+ int source_conflict;
+ int target_conflict;
+
+ memset(&arp, 0, sizeof(arp));
+ bytes = 0;
+ bytes = read(dhcp_client->listener_sockfd, &arp, sizeof(arp));
+ if (bytes < 0)
+ return bytes;
+
+ if (arp.arp_op != htons(ARPOP_REPLY) &&
+ arp.arp_op != htons(ARPOP_REQUEST))
+ return -EINVAL;
+
+ ip_requested = ntohl(dhcp_client->requested_ip);
+ source_conflict = !memcmp(arp.arp_spa, &ip_requested,
+ sizeof(ip_requested));
+
+ target_conflict = !memcmp(arp.arp_tpa, &ip_requested,
+ sizeof(ip_requested));
+
+ if (!source_conflict && !target_conflict)
+ return 0;
+
+ dhcp_client->conflicts++;
+
+ debug(dhcp_client, "IPV4LL conflict detected");
+
+ if (dhcp_client->state == IPV4LL_MONITOR) {
+ if (!source_conflict)
+ return 0;
+ dhcp_client->state = IPV4LL_DEFEND;
+ debug(dhcp_client, "DEFEND mode conflicts : %d",
+ dhcp_client->conflicts);
+ /*Try to defend with a single announce*/
+ send_announce_packet(dhcp_client);
+ return 0;
+ }
+
+ if (dhcp_client->state == IPV4LL_DEFEND) {
+ if (!source_conflict)
+ return 0;
+ else if (dhcp_client->ipv4ll_lost_cb != NULL)
+ dhcp_client->ipv4ll_lost_cb(dhcp_client,
+ dhcp_client->ipv4ll_lost_data);
+ }
+
+ ipv4ll_stop(dhcp_client);
+
+ if (dhcp_client->conflicts < MAX_CONFLICTS) {
+ /*restart whole state machine*/
+ dhcp_client->retry_times++;
+ dhcp_client->timeout =
+ g_timeout_add_full(G_PRIORITY_HIGH,
+ ipv4ll_random_delay_ms(PROBE_WAIT),
+ send_probe_packet,
+ dhcp_client,
+ NULL);
+ }
+ /* Here we got a lot of conflicts, RFC3927 states that we have
+ * to wait RATE_LIMIT_INTERVAL before retrying,
+ * but we just report failure.
+ */
+ else if (dhcp_client->no_lease_cb != NULL)
+ dhcp_client->no_lease_cb(dhcp_client,
+ dhcp_client->no_lease_data);
+
+ return 0;
+}
+
static gboolean check_package_owner(GDHCPClient *dhcp_client,
struct dhcp_packet *packet)
{
{
GDHCPClient *dhcp_client = user_data;
+ debug(dhcp_client, "request timeout (retries %d)",
+ dhcp_client->retry_times);
+
dhcp_client->retry_times++;
start_request(dhcp_client);
GIOChannel *listener_channel;
int listener_sockfd;
+ debug(dhcp_client, "switch listening mode (%d ==> %d)",
+ dhcp_client->listen_mode, listen_mode);
+
if (dhcp_client->listen_mode == listen_mode)
return 0;
else if (listen_mode == L3)
listener_sockfd = dhcp_l3_socket(CLIENT_PORT,
dhcp_client->interface);
+ else if (listen_mode == L_ARP)
+ listener_sockfd = ipv4ll_arp_socket(dhcp_client->ifindex);
else
return -EIO;
g_io_channel_set_close_on_unref(listener_channel, TRUE);
dhcp_client->listener_watch =
- g_io_add_watch_full(listener_channel,
- G_PRIORITY_HIGH, G_IO_IN,
+ g_io_add_watch_full(listener_channel, G_PRIORITY_HIGH,
+ G_IO_IN | G_IO_NVAL | G_IO_ERR | G_IO_HUP,
listener_event, dhcp_client,
NULL);
g_io_channel_unref(dhcp_client->listener_channel);
static void start_request(GDHCPClient *dhcp_client)
{
+ debug(dhcp_client, "start request (retries %d)",
+ dhcp_client->retry_times);
+
if (dhcp_client->retry_times == REQUEST_RETRIES) {
dhcp_client->state = INIT_SELECTING;
-
- if (dhcp_client->no_lease_cb != NULL)
- dhcp_client->no_lease_cb(dhcp_client,
- dhcp_client->no_lease_data);
+ ipv4ll_start(dhcp_client);
return;
}
static void restart_dhcp(GDHCPClient *dhcp_client, int retry_times)
{
+ debug(dhcp_client, "restart DHCP (retries %d)", retry_times);
+
if (dhcp_client->timeout > 0) {
g_source_remove(dhcp_client->timeout);
dhcp_client->timeout = 0;
dhcp_client->requested_ip = 0;
switch_listening_mode(dhcp_client, L2);
- g_dhcp_client_start(dhcp_client);
+ g_dhcp_client_start(dhcp_client, dhcp_client->last_address);
}
static gboolean start_rebound_timeout(gpointer user_data)
{
GDHCPClient *dhcp_client = user_data;
+ debug(dhcp_client, "start rebound timeout");
+
switch_listening_mode(dhcp_client, L2);
dhcp_client->lease_seconds >>= 1;
static void start_rebound(GDHCPClient *dhcp_client)
{
+ debug(dhcp_client, "start rebound");
+
dhcp_client->state = REBINDING;
dhcp_client->timeout = g_timeout_add_seconds_full(G_PRIORITY_HIGH,
{
GDHCPClient *dhcp_client = user_data;
+ debug(dhcp_client, "start renew timeout");
+
dhcp_client->state = RENEWING;
dhcp_client->lease_seconds >>= 1;
else {
send_renew(dhcp_client);
+ if (dhcp_client->timeout > 0)
+ g_source_remove(dhcp_client->timeout);
+
dhcp_client->timeout =
g_timeout_add_seconds_full(G_PRIORITY_HIGH,
dhcp_client->lease_seconds >> 1,
static void start_bound(GDHCPClient *dhcp_client)
{
+ debug(dhcp_client, "start bound");
+
dhcp_client->state = BOUND;
+ if (dhcp_client->timeout > 0)
+ g_source_remove(dhcp_client->timeout);
+
dhcp_client->timeout = g_timeout_add_seconds_full(G_PRIORITY_HIGH,
dhcp_client->lease_seconds >> 1,
start_renew_timeout, dhcp_client,
{
GDHCPClient *dhcp_client = user_data;
+ debug(dhcp_client, "restart DHCP timeout");
+
dhcp_client->ack_retry_times++;
restart_dhcp(dhcp_client, dhcp_client->ack_retry_times);
return ret;
}
-static GList *get_option_value_list(char *value)
+static GList *get_option_value_list(char *value, GDHCPOptionType type)
{
char *pos = value;
GList *list = NULL;
+ if (pos == NULL)
+ return NULL;
+
+ if (type == OPTION_STRING)
+ return g_list_append(list, g_strdup(value));
+
while ((pos = strchr(pos, ' ')) != NULL) {
*pos = '\0';
- list = g_list_append(list, g_strdup(value));
+ list = g_list_append(list, g_strdup(value));
value = ++pos;
}
- list = g_list_append(list, g_strdup(value));
+ list = g_list_append(list, g_strdup(value));
return list;
}
g_hash_table_remove(dhcp_client->code_value_hash,
GINT_TO_POINTER((int) code));
- value_list = get_option_value_list(option_value);
+ value_list = get_option_value_list(option_value, type);
g_free(option_value);
re = dhcp_recv_l2_packet(&packet, dhcp_client->listener_sockfd);
else if (dhcp_client->listen_mode == L3)
re = dhcp_recv_l3_packet(&packet, dhcp_client->listener_sockfd);
+ else if (dhcp_client->listen_mode == L_ARP) {
+ re = ipv4ll_recv_arp_packet(dhcp_client);
+ return TRUE;
+ }
else
re = -EIO;
message_type = dhcp_get_option(&packet, DHCP_MESSAGE_TYPE);
if (message_type == NULL)
- /* No message type option, ignore pakcage */
+ /* No message type option, ignore package */
return TRUE;
debug(dhcp_client, "received DHCP packet (current state %d)",
dhcp_client->timeout = 0;
dhcp_client->lease_seconds = get_lease(&packet);
+#if defined TIZEN_EXT
+ debug(dhcp_client, "lease %d secs", dhcp_client->lease_seconds);
+#endif
get_request(dhcp_client, &packet);
if (dhcp_client->timeout > 0)
g_source_remove(dhcp_client->timeout);
+#if defined TIZEN_EXT
+ g_dhcp_client_set_address_known(dhcp_client, FALSE);
+#endif
dhcp_client->timeout = g_timeout_add_seconds_full(
G_PRIORITY_HIGH, 3,
restart_dhcp_timeout,
dhcp_client->retry_times++;
- g_dhcp_client_start(dhcp_client);
+ /*
+ * We do not send the REQUESTED IP option if we are retrying because
+ * if the server is non-authoritative it will ignore the request if the
+ * option is present.
+ */
+ g_dhcp_client_start(dhcp_client, NULL);
return FALSE;
}
-int g_dhcp_client_start(GDHCPClient *dhcp_client)
+static gboolean ipv4ll_defend_timeout(gpointer dhcp_data)
+{
+ GDHCPClient *dhcp_client = dhcp_data;
+
+ debug(dhcp_client, "back to MONITOR mode");
+
+ dhcp_client->conflicts = 0;
+ dhcp_client->state = IPV4LL_MONITOR;
+
+ return FALSE;
+}
+
+static gboolean ipv4ll_announce_timeout(gpointer dhcp_data)
+{
+ GDHCPClient *dhcp_client = dhcp_data;
+ uint32_t ip;
+
+ debug(dhcp_client, "request timeout (retries %d)",
+ dhcp_client->retry_times);
+
+ if (dhcp_client->retry_times != ANNOUNCE_NUM){
+ dhcp_client->retry_times++;
+ send_announce_packet(dhcp_client);
+ return FALSE;
+ }
+
+ ip = htonl(dhcp_client->requested_ip);
+ debug(dhcp_client, "switching to monitor mode");
+ dhcp_client->state = IPV4LL_MONITOR;
+ dhcp_client->assigned_ip = get_ip(ip);
+
+ if (dhcp_client->ipv4ll_available_cb != NULL)
+ dhcp_client->ipv4ll_available_cb(dhcp_client,
+ dhcp_client->ipv4ll_available_data);
+ dhcp_client->conflicts = 0;
+
+ return FALSE;
+}
+
+static gboolean ipv4ll_probe_timeout(gpointer dhcp_data)
+{
+
+ GDHCPClient *dhcp_client = dhcp_data;
+
+ debug(dhcp_client, "IPV4LL probe timeout (retries %d)",
+ dhcp_client->retry_times);
+
+ if (dhcp_client->retry_times == PROBE_NUM) {
+ dhcp_client->state = IPV4LL_ANNOUNCE;
+ dhcp_client->retry_times = 0;
+
+ dhcp_client->retry_times++;
+ send_announce_packet(dhcp_client);
+ return FALSE;
+ }
+ dhcp_client->retry_times++;
+ send_probe_packet(dhcp_client);
+
+ return FALSE;
+}
+
+int g_dhcp_client_start(GDHCPClient *dhcp_client, const char *last_address)
{
int re;
+ uint32_t addr;
if (dhcp_client->retry_times == DISCOVER_RETRIES) {
- if (dhcp_client->no_lease_cb != NULL)
- dhcp_client->no_lease_cb(dhcp_client,
- dhcp_client->no_lease_data);
-
+ ipv4ll_start(dhcp_client);
return 0;
}
dhcp_client->xid = rand();
}
- send_discover(dhcp_client, 0);
+ if (last_address == NULL) {
+ addr = 0;
+ } else {
+ addr = inet_addr(last_address);
+ if (addr == 0xFFFFFFFF) {
+ addr = 0;
+ } else {
+ g_free(dhcp_client->last_address);
+ dhcp_client->last_address = g_strdup(last_address);
+ }
+ }
+#if defined TIZEN_EXT
+ if (dhcp_client->init_reboot == TRUE) {
+ dhcp_client->requested_ip = addr;
+
+ start_request(dhcp_client);
+
+ return 0;
+ }
+#endif
+ send_discover(dhcp_client, addr);
dhcp_client->timeout = g_timeout_add_seconds_full(G_PRIORITY_HIGH,
DISCOVER_TIMEOUT,
dhcp_client->lease_available_cb = func;
dhcp_client->lease_available_data = data;
return;
+ case G_DHCP_CLIENT_EVENT_IPV4LL_AVAILABLE:
+ dhcp_client->ipv4ll_available_cb = func;
+ dhcp_client->ipv4ll_available_data = data;
+ return;
case G_DHCP_CLIENT_EVENT_NO_LEASE:
dhcp_client->no_lease_cb = func;
dhcp_client->no_lease_data = data;
dhcp_client->lease_lost_cb = func;
dhcp_client->lease_lost_data = data;
return;
+ case G_DHCP_CLIENT_EVENT_IPV4LL_LOST:
+ dhcp_client->ipv4ll_lost_cb = func;
+ dhcp_client->ipv4ll_lost_data = data;
+ return;
case G_DHCP_CLIENT_EVENT_ADDRESS_CONFLICT:
dhcp_client->address_conflict_cb = func;
dhcp_client->address_conflict_data = data;
return g_strdup(dhcp_client->assigned_ip);
}
+char *g_dhcp_client_get_netmask(GDHCPClient *dhcp_client)
+{
+ GList *option = NULL;
+
+ switch (dhcp_client->state) {
+ case IPV4LL_DEFEND:
+ case IPV4LL_MONITOR:
+ return g_strdup("255.255.0.0");
+ case BOUND:
+ case RENEWING:
+ case REBINDING:
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_SUBNET);
+ if (option != NULL)
+ return g_strdup(option->data);
+ case INIT_SELECTING:
+ case REQUESTING:
+ case RELEASED:
+ case IPV4LL_PROBE:
+ case IPV4LL_ANNOUNCE:
+ break;
+ }
+ return NULL;
+}
+
GDHCPClientError g_dhcp_client_set_request(GDHCPClient *dhcp_client,
unsigned char option_code)
{
if (dhcp_client == NULL)
return NULL;
- g_atomic_int_inc(&dhcp_client->ref_count);
+ __sync_fetch_and_add(&dhcp_client->ref_count, 1);
return dhcp_client;
}
if (dhcp_client == NULL)
return;
- if (g_atomic_int_dec_and_test(&dhcp_client->ref_count) == FALSE)
+ if (__sync_fetch_and_sub(&dhcp_client->ref_count, 1) != 1)
return;
g_dhcp_client_stop(dhcp_client);
g_free(dhcp_client->interface);
g_free(dhcp_client->assigned_ip);
+ g_free(dhcp_client->last_address);
g_list_free(dhcp_client->request_list);
g_list_free(dhcp_client->require_list);
dhcp_client->debug_func = func;
dhcp_client->debug_data = user_data;
}
+
+#if defined TIZEN_EXT
+void g_dhcp_client_set_address_known(GDHCPClient *dhcp_client, gboolean known)
+{
+ /* DHCPREQUEST during INIT-REBOOT state (rfc2131)
+ * 4.4.3 Initialization with known network address
+ * 4.3.2 DHCPREQUEST generated during INIT-REBOOT state
+ */
+ debug(dhcp_client, "known network address (%d)", known);
+
+ if (dhcp_client->init_reboot == known)
+ return;
+
+ dhcp_client->init_reboot = known;
+}
+#endif
projects / framework / connectivity / connman.git / blobdiff