#include <netpacket/packet.h>
#include <net/ethernet.h>
-#include <net/if_arp.h>
#include <linux/if.h>
#include <linux/filter.h>
#include "common.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,
gpointer debug_data;
};
-static GTimer *timer = NULL;
+static inline void debug(GDHCPClient *client, const char *format, ...)
+{
+ char str[256];
+ va_list ap;
+
+ if (client->debug_func == NULL)
+ return;
+
+ va_start(ap, format);
+
+ if (vsnprintf(str, sizeof(str), format, ap) > 0)
+ client->debug_func(str, client->debug_data);
+
+ va_end(ap);
+}
/* Initialize the packet with the proper defaults */
static void init_packet(GDHCPClient *dhcp_client,
{
struct dhcp_packet packet;
+ debug(dhcp_client, "sending DHCP discover request");
+
init_packet(dhcp_client, &packet, DHCPDISCOVER);
packet.xid = dhcp_client->xid;
struct dhcp_packet packet;
struct in_addr addr;
+ debug(dhcp_client, "sending DHCP select request");
+
init_packet(dhcp_client, &packet, DHCPREQUEST);
packet.xid = dhcp_client->xid;
{
struct dhcp_packet packet;
+ debug(dhcp_client, "sending DHCP renew request");
+
init_packet(dhcp_client , &packet, DHCPREQUEST);
packet.xid = dhcp_client->xid;
packet.ciaddr = dhcp_client->requested_ip;
{
struct dhcp_packet packet;
+ debug(dhcp_client, "sending DHCP rebound request");
+
init_packet(dhcp_client , &packet, DHCPREQUEST);
packet.xid = dhcp_client->xid;
packet.ciaddr = dhcp_client->requested_ip;
{
struct dhcp_packet packet;
+ debug(dhcp_client, "sending DHCP release request");
+
init_packet(dhcp_client, &packet, DHCPRELEASE);
packet.xid = rand();
packet.ciaddr = ciaddr;
server, SERVER_PORT);
}
-static gboolean interface_is_up(int index)
-{
- int sk, err;
- struct ifreq ifr;
- gboolean ret = FALSE;
-
- sk = socket(PF_INET, SOCK_DGRAM, 0);
- if (sk < 0) {
- perror("Open socket error");
- return FALSE;
- }
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_ifindex = index;
-
- err = ioctl(sk, SIOCGIFNAME, &ifr);
- if (err < 0) {
- perror("Get interface name error");
- goto done;
- }
-
- err = ioctl(sk, SIOCGIFFLAGS, &ifr);
- if (err < 0) {
- perror("Get interface flags error");
- goto done;
- }
-
- if (ifr.ifr_flags & IFF_UP)
- ret = TRUE;
-
-done:
- close(sk);
-
- return ret;
-}
-
-static char *get_interface_name(int index)
-{
- struct ifreq ifr;
- int sk, err;
-
- if (index < 0)
- return NULL;
-
- 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;
-
- err = ioctl(sk, SIOCGIFNAME, &ifr);
- if (err < 0) {
- perror("Get interface name error");
- close(sk);
- return NULL;
- }
-
- close(sk);
-
- return g_strdup(ifr.ifr_name);
-}
static void get_interface_mac_address(int index, uint8_t *mac_address)
{
{
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;
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;
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;
{
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,
static gboolean start_renew_timeout(gpointer user_data)
{
GDHCPClient *dhcp_client = user_data;
- gdouble elapse;
- gulong microseconds;
-
- elapse = g_timer_elapsed(timer, µseconds);
- g_timer_start(timer);
+ debug(dhcp_client, "start renew timeout");
dhcp_client->state = RENEWING;
static void start_bound(GDHCPClient *dhcp_client)
{
- dhcp_client->state = BOUND;
+ debug(dhcp_client, "start bound");
- if (timer == NULL)
- timer = g_timer_new();
+ dhcp_client->state = BOUND;
- dhcp_client->timeout =
- g_timeout_add_seconds_full(G_PRIORITY_HIGH,
+ dhcp_client->timeout = g_timeout_add_seconds_full(G_PRIORITY_HIGH,
dhcp_client->lease_seconds >> 1,
start_renew_timeout, dhcp_client,
NULL);
{
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);
len = option[OPT_LEN - OPT_DATA];
type &= OPTION_TYPE_MASK;
optlen = dhcp_option_lengths[type];
+ if (optlen == 0)
+ return NULL;
upper_length = len_of_option_as_string[type] *
((unsigned)len / (unsigned)optlen);
dest = ret = malloc(upper_length + 1);
+ if (ret == NULL)
+ return NULL;
while (len >= optlen) {
switch (type) {
char *pos = value;
GList *list = NULL;
+ if (pos == NULL)
+ return NULL;
+
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;
}
type = dhcp_get_code_type(code);
option_value = malloc_option_value_string(option, type);
+ if (option_value == NULL)
+ g_hash_table_remove(dhcp_client->code_value_hash,
+ GINT_TO_POINTER((int) code));
value_list = get_option_value_list(option_value);
/* No message type option, ignore pakcage */
return TRUE;
+ debug(dhcp_client, "received DHCP packet (current state %d)",
+ dhcp_client->state);
+
switch (dhcp_client->state) {
case INIT_SELECTING:
if (*message_type != DHCPOFFER)
break;
}
+ debug(dhcp_client, "processed DHCP packet (new state %d)",
+ dhcp_client->state);
+
return TRUE;
}
return storage;
}
-static const char *get_hostname(const char *host)
-{
- char local_host_name[HOST_NAME_MAX + 1];
-
- if (g_strcmp0("<hostname>", host) != 0)
- return g_strdup(host);
-
- if (gethostname(local_host_name, HOST_NAME_MAX) != 0)
- return NULL;
-
- local_host_name[HOST_NAME_MAX] = 0;
-
- return g_strdup(local_host_name);
-}
-
/* Now only support send hostname */
GDHCPClientError g_dhcp_client_set_send(GDHCPClient *dhcp_client,
unsigned char option_code, const char *option_value)
{
uint8_t *binary_option;
- const char *hostname;
- if (option_code == DHCP_HOST_NAME) {
- hostname = get_hostname(option_value);
-
- binary_option = alloc_dhcp_option(option_code, hostname, 0);
+ if (option_code == G_DHCP_HOST_NAME && option_value != NULL) {
+ binary_option = alloc_dhcp_option(option_code,
+ option_value, 0);
g_hash_table_insert(dhcp_client->send_value_hash,
GINT_TO_POINTER((int) option_code), binary_option);
return G_DHCP_CLIENT_ERROR_NONE;
}
-void g_dhcp_client_ref(GDHCPClient *dhcp_client)
+GDHCPClient *g_dhcp_client_ref(GDHCPClient *dhcp_client)
{
+ if (dhcp_client == NULL)
+ return NULL;
+
g_atomic_int_inc(&dhcp_client->ref_count);
+
+ return dhcp_client;
}
void g_dhcp_client_unref(GDHCPClient *dhcp_client)
{
+ if (dhcp_client == NULL)
+ return;
+
if (g_atomic_int_dec_and_test(&dhcp_client->ref_count) == FALSE)
return;
}
void g_dhcp_client_set_debug(GDHCPClient *dhcp_client,
- GDHCPDebugFunc func, gpointer data)
+ GDHCPDebugFunc func, gpointer user_data)
{
+ if (dhcp_client == NULL)
+ return;
+
dhcp_client->debug_func = func;
- dhcp_client->debug_data = data;
+ dhcp_client->debug_data = user_data;
}
projects / framework / connectivity / connman.git / blobdiff