This patch contains solicitation message support.
*
* DHCP client library with GLib integration
*
- * Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
+ * Copyright (C) 2009-2011 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
IPV4LL_MONITOR,
IPV4LL_DEFEND,
INFORMATION_REQ,
+ SOLICITATION,
} ClientState;
struct _GDHCPClient {
gpointer debug_data;
GDHCPClientEventFunc information_req_cb;
gpointer information_req_data;
+ GDHCPClientEventFunc solicitation_cb;
+ gpointer solicitation_data;
+ GDHCPClientEventFunc advertise_cb;
+ gpointer advertise_data;
char *last_address;
unsigned char *duid;
int duid_len;
+ unsigned char *server_duid;
+ int server_duid_len;
uint16_t status_code;
+ uint32_t iaid;
+ uint32_t T1, T2;
+ struct in6_addr ia_na;
+ struct in6_addr ia_ta;
};
static inline void debug(GDHCPClient *client, const char *format, ...)
(*ptr_buf) += len;
break;
+ case G_DHCPV6_SERVERID:
+ if (dhcp_client->server_duid == NULL)
+ return;
+
+ len = 2 + 2 + dhcp_client->server_duid_len;
+ if ((*ptr_buf + len) > (buf + max_buf)) {
+ debug(dhcp_client, "Too long dhcpv6 message "
+ "when writing server id option");
+ return;
+ }
+
+ copy_option(*ptr_buf, G_DHCPV6_SERVERID,
+ dhcp_client->server_duid_len,
+ dhcp_client->server_duid);
+ (*ptr_buf) += len;
+ break;
+
+ case G_DHCPV6_RAPID_COMMIT:
+ len = 2 + 2;
+ if ((*ptr_buf + len) > (buf + max_buf)) {
+ debug(dhcp_client, "Too long dhcpv6 message "
+ "when writing rapid commit option");
+ return;
+ }
+
+ copy_option(*ptr_buf, G_DHCPV6_RAPID_COMMIT, 0, 0);
+ (*ptr_buf) += len;
+ break;
+
case G_DHCPV6_ORO:
break;
return 0;
}
+uint32_t g_dhcpv6_client_get_iaid(GDHCPClient *dhcp_client)
+{
+ if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
+ return 0;
+
+ return dhcp_client->iaid;
+}
+
+void g_dhcpv6_client_create_iaid(GDHCPClient *dhcp_client, int index,
+ unsigned char *iaid)
+{
+ uint8_t buf[6];
+
+ get_interface_mac_address(index, buf);
+
+ memcpy(iaid, &buf[2], 4);
+ dhcp_client->iaid = iaid[0] << 24 |
+ iaid[1] << 16 | iaid[2] << 8 | iaid[3];
+}
+
+int g_dhcpv6_client_get_timeouts(GDHCPClient *dhcp_client,
+ uint32_t *T1, uint32_t *T2)
+{
+ if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
+ return -EINVAL;
+
+ if (T1 != NULL)
+ *T1 = dhcp_client->T1;
+
+ if (T2 != NULL)
+ *T2 = dhcp_client->T2;
+
+ return 0;
+}
+
+static uint8_t *create_iaaddr(GDHCPClient *dhcp_client, uint8_t *buf,
+ uint16_t len)
+{
+ buf[0] = 0;
+ buf[1] = G_DHCPV6_IAADDR;
+ buf[2] = 0;
+ buf[3] = len;
+ memcpy(&buf[4], &dhcp_client->ia_na, 16);
+ memset(&buf[20], 0, 4); /* preferred */
+ memset(&buf[24], 0, 4); /* valid */
+ return buf;
+}
+
+static void put_iaid(GDHCPClient *dhcp_client, int index, uint8_t *buf)
+{
+ uint32_t iaid;
+
+ iaid = g_dhcpv6_client_get_iaid(dhcp_client);
+ if (iaid == 0) {
+ g_dhcpv6_client_create_iaid(dhcp_client, index, buf);
+ return;
+ }
+
+ buf[0] = iaid >> 24;
+ buf[1] = iaid >> 16;
+ buf[2] = iaid >> 8;
+ buf[3] = iaid;
+}
+
+int g_dhcpv6_client_set_ia(GDHCPClient *dhcp_client, int index,
+ int code, uint32_t *T1, uint32_t *T2,
+ gboolean add_iaaddr)
+{
+ if (code == G_DHCPV6_IA_TA) {
+ uint8_t ia_options[4];
+
+ put_iaid(dhcp_client, index, ia_options);
+
+ g_dhcp_client_set_request(dhcp_client, G_DHCPV6_IA_TA);
+ g_dhcpv6_client_set_send(dhcp_client, G_DHCPV6_IA_TA,
+ ia_options, sizeof(ia_options));
+
+ } else if (code == G_DHCPV6_IA_NA) {
+
+ g_dhcp_client_set_request(dhcp_client, G_DHCPV6_IA_NA);
+
+ if (add_iaaddr == TRUE) {
+#define IAADDR_LEN (16+4+4)
+ uint8_t ia_options[4+4+4+2+2+IAADDR_LEN];
+
+ put_iaid(dhcp_client, index, ia_options);
+
+ if (T1 != NULL) {
+ ia_options[4] = *T1 >> 24;
+ ia_options[5] = *T1 >> 16;
+ ia_options[6] = *T1 >> 8;
+ ia_options[7] = *T1;
+ } else
+ memset(&ia_options[4], 0x00, 4);
+
+ if (T2 != NULL) {
+ ia_options[8] = *T2 >> 24;
+ ia_options[9] = *T2 >> 16;
+ ia_options[10] = *T2 >> 8;
+ ia_options[11] = *T2;
+ } else
+ memset(&ia_options[8], 0x00, 4);
+
+ create_iaaddr(dhcp_client, &ia_options[12],
+ IAADDR_LEN);
+
+ g_dhcpv6_client_set_send(dhcp_client, G_DHCPV6_IA_NA,
+ ia_options, sizeof(ia_options));
+ } else {
+ uint8_t ia_options[4+4+4];
+
+ put_iaid(dhcp_client, index, ia_options);
+
+ memset(&ia_options[4], 0x00, 4); /* T1 (4 bytes) */
+ memset(&ia_options[8], 0x00, 4); /* T2 (4 bytes) */
+
+ g_dhcpv6_client_set_send(dhcp_client, G_DHCPV6_IA_NA,
+ ia_options, sizeof(ia_options));
+ }
+
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+
int g_dhcpv6_client_set_oro(GDHCPClient *dhcp_client, int args, ...)
{
va_list va;
return ret;
}
+static int send_solicitation(GDHCPClient *dhcp_client)
+{
+ return send_dhcpv6_msg(dhcp_client, DHCPV6_SOLICIT, "solicit");
+}
+
static int send_information_req(GDHCPClient *dhcp_client)
{
return send_dhcpv6_msg(dhcp_client, DHCPV6_INFORMATION_REQ,
return list;
}
+static inline uint32_t get_uint32(unsigned char *value)
+{
+ return value[0] << 24 | value[1] << 16 |
+ value[2] << 8 | value[3];
+}
+
+static inline uint16_t get_uint16(unsigned char *value)
+{
+ return value[0] << 8 | value[1];
+}
+
+static GList *get_addresses(GDHCPClient *dhcp_client,
+ int code, int len,
+ unsigned char *value,
+ uint16_t *status)
+{
+ GList *list = NULL;
+ struct in6_addr addr;
+ uint32_t iaid, T1 = 0, T2 = 0, preferred = 0, valid = 0;
+ uint16_t option_len, option_code, st = 0, max_len;
+ int addr_count = 0, i, pos;
+ uint8_t *option;
+ char *str;
+
+ iaid = get_uint32(&value[0]);
+ if (dhcp_client->iaid != iaid)
+ return NULL;
+
+ if (code == G_DHCPV6_IA_NA) {
+ T1 = get_uint32(&value[4]);
+ T2 = get_uint32(&value[8]);
+
+ if (T1 > T2)
+ /* RFC 3315, 22.4 */
+ return NULL;
+
+ pos = 12;
+ } else
+ pos = 4;
+
+ if (len <= pos)
+ return NULL;
+
+ max_len = len - pos;
+
+ /* We have more sub-options in this packet. */
+ do {
+ option = dhcpv6_get_sub_option(&value[pos], max_len,
+ &option_code, &option_len);
+
+ debug(dhcp_client, "pos %d option %p code %d len %d",
+ pos, option, option_code, option_len);
+
+ if (option == NULL)
+ break;
+
+ if (pos >= max_len)
+ break;
+
+ switch (option_code) {
+ case G_DHCPV6_IAADDR:
+ i = 0;
+ memcpy(&addr, &option[0], sizeof(addr));
+ i += sizeof(addr);
+ preferred = get_uint32(&option[i]);
+ i += 4;
+ valid = get_uint32(&option[i]);
+
+ addr_count++;
+ break;
+
+ case G_DHCPV6_STATUS_CODE:
+ st = get_uint16(&option[0]);
+ debug(dhcp_client, "error code %d", st);
+ if (option_len > 2) {
+ str = g_strndup((gchar *)&option[2],
+ option_len - 2);
+ debug(dhcp_client, "error text: %s", str);
+ g_free(str);
+ }
+
+ *status = st;
+ break;
+ }
+
+ pos += 2 + 2 + option_len;
+
+ } while (option != NULL);
+
+ if (addr_count > 0 && st == 0) {
+ /* We only support one address atm */
+ char str[INET6_ADDRSTRLEN + 1];
+
+ if (preferred > valid)
+ /* RFC 3315, 22.6 */
+ return NULL;
+
+ dhcp_client->T1 = T1;
+ dhcp_client->T2 = T2;
+
+ inet_ntop(AF_INET6, &addr, str, INET6_ADDRSTRLEN);
+ debug(dhcp_client, "count %d addr %s T1 %u T2 %u",
+ addr_count, str, T1, T2);
+
+ list = g_list_append(list, g_strdup(str));
+
+ if (code == G_DHCPV6_IA_NA)
+ memcpy(&dhcp_client->ia_na, &addr,
+ sizeof(struct in6_addr));
+ else
+ memcpy(&dhcp_client->ia_ta, &addr,
+ sizeof(struct in6_addr));
+ }
+
+ return list;
+}
+
static GList *get_dhcpv6_option_value_list(GDHCPClient *dhcp_client,
int code, int len,
- unsigned char *value)
+ unsigned char *value,
+ uint16_t *status)
{
GList *list = NULL;
char *str;
}
break;
+ case G_DHCPV6_IA_NA: /* RFC 3315, chapter 22.4 */
+ case G_DHCPV6_IA_TA: /* RFC 3315, chapter 22.5 */
+ list = get_addresses(dhcp_client, code, len, value, status);
+ break;
+
default:
break;
}
static void get_dhcpv6_request(GDHCPClient *dhcp_client,
struct dhcpv6_packet *packet,
- uint16_t pkt_len)
+ uint16_t pkt_len, uint16_t *status)
{
GList *list, *value_list;
uint8_t *option;
}
value_list = get_dhcpv6_option_value_list(dhcp_client, code,
- option_len, option);
+ option_len, option, status);
debug(dhcp_client, "code %d %p len %d list %p", code, option,
option_len, value_list);
struct dhcp_packet packet;
struct dhcpv6_packet *packet6 = NULL;
uint8_t *message_type = NULL, *client_id = NULL, *option_u8,
- *server_id;
+ *server_id = NULL;
uint16_t option_len = 0, status = 0;
gpointer pkt;
unsigned char buf[MAX_DHCPV6_PKT_SIZE];
if (option_u8 != 0 && option_len > 0) {
status = option_u8[0]<<8 | option_u8[1];
if (status != 0) {
- gchar *txt = g_strndup((gchar *)&option_u8[2],
- option_len - 2);
- debug(dhcp_client, "error code %d: %s",
- status, txt);
- g_free(txt);
+ debug(dhcp_client, "error code %d", status);
+ if (option_len > 2) {
+ gchar *txt = g_strndup(
+ (gchar *)&option_u8[2],
+ option_len - 2);
+ debug(dhcp_client, "error text: %s",
+ txt);
+ g_free(txt);
+ }
}
dhcp_client->status_code = status;
} else
}
break;
+ case SOLICITATION:
+ if (dhcp_client->type != G_DHCP_IPV6)
+ return TRUE;
+
+ if (packet6->message != DHCPV6_REPLY &&
+ packet6->message != DHCPV6_ADVERTISE)
+ return TRUE;
+
+ count = 0;
+ server_id = dhcpv6_get_option(packet6, pkt_len,
+ G_DHCPV6_SERVERID, &option_len, &count);
+ if (server_id == NULL || count != 1 || option_len == 0) {
+ /* RFC 3315, 15.10 */
+ debug(dhcp_client,
+ "server duid error, discarding msg %p/%d/%d",
+ server_id, option_len, count);
+ return TRUE;
+ }
+ dhcp_client->server_duid = g_try_malloc(option_len);
+ if (dhcp_client->server_duid == NULL)
+ return TRUE;
+ memcpy(dhcp_client->server_duid, server_id, option_len);
+ dhcp_client->server_duid_len = option_len;
+
+ if (packet6->message == DHCPV6_REPLY) {
+ uint8_t *rapid_commit;
+ count = 0;
+ option_len = 0;
+ rapid_commit = dhcpv6_get_option(packet6, pkt_len,
+ G_DHCPV6_RAPID_COMMIT,
+ &option_len, &count);
+ if (rapid_commit == NULL || option_len == 0 ||
+ count != 1)
+ /* RFC 3315, 17.1.4 */
+ return TRUE;
+ }
+
+ switch_listening_mode(dhcp_client, L_NONE);
+
+ if (dhcp_client->status_code == 0)
+ get_dhcpv6_request(dhcp_client, packet6, pkt_len,
+ &dhcp_client->status_code);
+
+ if (packet6->message == DHCPV6_ADVERTISE) {
+ if (dhcp_client->advertise_cb != NULL)
+ dhcp_client->advertise_cb(dhcp_client,
+ dhcp_client->advertise_data);
+ return TRUE;
+ }
+
+ if (dhcp_client->solicitation_cb != NULL) {
+ /*
+ * The dhcp_client might not be valid after the
+ * callback call so just return immediately.
+ */
+ dhcp_client->solicitation_cb(dhcp_client,
+ dhcp_client->solicitation_data);
+ return TRUE;
+ }
+ break;
case INFORMATION_REQ:
if (dhcp_client->type != G_DHCP_IPV6)
return TRUE;
}
switch_listening_mode(dhcp_client, L_NONE);
- get_dhcpv6_request(dhcp_client, packet6, pkt_len);
+
+ dhcp_client->status_code = 0;
+ get_dhcpv6_request(dhcp_client, packet6, pkt_len,
+ &dhcp_client->status_code);
if (dhcp_client->information_req_cb != NULL) {
/*
return re;
}
send_information_req(dhcp_client);
+
+ } else if (dhcp_client->solicitation_cb) {
+ dhcp_client->state = SOLICITATION;
+ re = switch_listening_mode(dhcp_client, L3);
+ if (re != 0) {
+ switch_listening_mode(dhcp_client, L_NONE);
+ dhcp_client->state = 0;
+ return re;
+ }
+ send_solicitation(dhcp_client);
}
+
return 0;
}
dhcp_client->information_req_cb = func;
dhcp_client->information_req_data = data;
return;
+ case G_DHCP_CLIENT_EVENT_SOLICITATION:
+ if (dhcp_client->type == G_DHCP_IPV4)
+ return;
+ dhcp_client->solicitation_cb = func;
+ dhcp_client->solicitation_data = data;
+ return;
+ case G_DHCP_CLIENT_EVENT_ADVERTISE:
+ if (dhcp_client->type == G_DHCP_IPV4)
+ return;
+ dhcp_client->advertise_cb = func;
+ dhcp_client->advertise_data = data;
+ return;
}
}
case IPV4LL_PROBE:
case IPV4LL_ANNOUNCE:
case INFORMATION_REQ:
+ case SOLICITATION:
break;
}
return NULL;
return G_DHCP_CLIENT_ERROR_NONE;
}
+void g_dhcp_client_clear_requests(GDHCPClient *dhcp_client)
+{
+ g_list_free(dhcp_client->request_list);
+ dhcp_client->request_list = NULL;
+}
+
+void g_dhcp_client_clear_values(GDHCPClient *dhcp_client)
+{
+ g_hash_table_remove_all(dhcp_client->send_value_hash);
+}
+
static uint8_t *alloc_dhcp_option(int code, const char *str, int extra)
{
uint8_t *storage;
g_free(dhcp_client->assigned_ip);
g_free(dhcp_client->last_address);
g_free(dhcp_client->duid);
+ g_free(dhcp_client->server_duid);
g_list_free(dhcp_client->request_list);
g_list_free(dhcp_client->require_list);
return found;
}
+uint8_t *dhcpv6_get_sub_option(unsigned char *option, uint16_t max_len,
+ uint16_t *option_code, uint16_t *option_len)
+{
+ int rem;
+ uint16_t code, len;
+
+ rem = max_len - 2 - 2;
+
+ if (rem <= 0)
+ /* Bad option */
+ return NULL;
+
+ code = option[0] << 8 | option[1];
+ len = option[2] << 8 | option[3];
+
+ rem -= len;
+ if (rem < 0)
+ return NULL;
+
+ *option_code = code;
+ *option_len = len;
+
+ return &option[4];
+}
+
/*
* Add an option (supplied in binary form) to the options.
* Option format: [code][len][data1][data2]..[dataLEN]
uint8_t *dhcp_get_option(struct dhcp_packet *packet, int code);
uint8_t *dhcpv6_get_option(struct dhcpv6_packet *packet, uint16_t pkt_len,
int code, uint16_t *option_len, int *option_count);
+uint8_t *dhcpv6_get_sub_option(unsigned char *option, uint16_t max_len,
+ uint16_t *code, uint16_t *option_len);
int dhcp_end_option(uint8_t *optionptr);
void dhcp_add_binary_option(struct dhcp_packet *packet, uint8_t *addopt);
void dhcpv6_add_binary_option(struct dhcpv6_packet *packet, uint16_t max_len,
G_DHCP_CLIENT_EVENT_IPV4LL_LOST,
G_DHCP_CLIENT_EVENT_ADDRESS_CONFLICT,
G_DHCP_CLIENT_EVENT_INFORMATION_REQ,
+ G_DHCP_CLIENT_EVENT_SOLICITATION,
+ G_DHCP_CLIENT_EVENT_ADVERTISE,
} GDHCPClientEvent;
typedef enum {
#define G_DHCPV6_CLIENTID 1
#define G_DHCPV6_SERVERID 2
+#define G_DHCPV6_IA_NA 3
+#define G_DHCPV6_IA_TA 4
+#define G_DHCPV6_IAADDR 5
#define G_DHCPV6_ORO 6
#define G_DHCPV6_STATUS_CODE 13
+#define G_DHCPV6_RAPID_COMMIT 14
#define G_DHCPV6_DNS_SERVERS 23
#define G_DHCPV6_SNTP_SERVERS 31
GDHCPClientError g_dhcp_client_set_request(GDHCPClient *client,
unsigned int option_code);
+void g_dhcp_client_clear_requests(GDHCPClient *dhcp_client);
+void g_dhcp_client_clear_values(GDHCPClient *dhcp_client);
GDHCPClientError g_dhcp_client_set_send(GDHCPClient *client,
unsigned char option_code,
const char *option_value);
uint8_t *option_value, uint16_t option_len);
uint16_t g_dhcpv6_client_get_status(GDHCPClient *dhcp_client);
int g_dhcpv6_client_set_oro(GDHCPClient *dhcp_client, int args, ...);
+void g_dhcpv6_client_create_iaid(GDHCPClient *dhcp_client, int index,
+ unsigned char *iaid);
+int g_dhcpv6_client_get_timeouts(GDHCPClient *dhcp_client,
+ uint32_t *T1, uint32_t *T2);
+uint32_t g_dhcpv6_client_get_iaid(GDHCPClient *dhcp_client);
+int g_dhcpv6_client_set_ia(GDHCPClient *dhcp_client, int index,
+ int code, uint32_t *T1, uint32_t *T2, gboolean add_iaaddr);
/* DHCP Server */
typedef enum {
int __connman_dhcpv6_start_info(struct connman_network *network,
dhcp_cb callback);
void __connman_dhcpv6_stop(struct connman_network *network);
+int __connman_dhcpv6_start(struct connman_network *network,
+ GSList *prefixes, dhcp_cb callback);
int __connman_ipv4_init(void);
void __connman_ipv4_cleanup(void);
#define INF_MAX_DELAY (1 * 1000)
#define INF_TIMEOUT (1 * 1000)
#define INF_MAX_RT (120 * 1000)
+#define SOL_MAX_DELAY (1 * 1000)
+#define SOL_TIMEOUT (1 * 1000)
+#define SOL_MAX_RT (120 * 1000)
struct connman_dhcpv6 {
GDHCPClient *dhcp_client;
- guint timeout;
- guint RT; /* in msec */
+ guint timeout; /* operation timeout in msec */
+ guint RT; /* in msec */
+ gboolean use_ta; /* set to TRUE if IPv6 privacy is enabled */
+ GSList *prefixes; /* network prefixes from radvd */
};
static GHashTable *network_table;
return (guint)rt;
}
+static void free_prefix(gpointer data, gpointer user_data)
+{
+ g_free(data);
+}
+
static void dhcpv6_free(struct connman_dhcpv6 *dhcp)
{
g_strfreev(dhcp->nameservers);
dhcp->nameservers = NULL;
dhcp->timeservers = NULL;
+
+ g_slist_foreach(dhcp->prefixes, free_prefix, NULL);
+ g_slist_free(dhcp->prefixes);
}
static gboolean compare_string_arrays(char **array_a, char **array_b)
return 0;
}
+static void clear_callbacks(GDHCPClient *dhcp_client)
+{
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_SOLICITATION,
+ NULL, NULL);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_ADVERTISE,
+ NULL, NULL);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_INFORMATION_REQ,
+ NULL, NULL);
+}
+
static void info_req_cb(GDHCPClient *dhcp_client, gpointer user_data)
{
struct connman_dhcpv6 *dhcp = user_data;
return g_dhcp_client_start(dhcp_client, NULL);
}
+static int check_ipv6_addr_prefix(GSList *prefixes, char *address)
+{
+ struct in6_addr addr_prefix, addr;
+ GSList *list;
+ int ret = 128, len;
+
+ for (list = prefixes; list; list = list->next) {
+ char *prefix = list->data;
+ const char *slash = g_strrstr(prefix, "/");
+ const unsigned char bits[] = { 0x00, 0xFE, 0xFC, 0xF8,
+ 0xF0, 0xE0, 0xC0, 0x80 };
+ int left, count, i, plen;
+
+ if (slash == NULL)
+ continue;
+
+ prefix = g_strndup(prefix, slash - prefix);
+ len = strtol(slash + 1, NULL, 10);
+ plen = 128 - len;
+
+ count = plen / 8;
+ left = plen % 8;
+ i = 16 - count;
+
+ inet_pton(AF_INET6, prefix, &addr_prefix);
+ inet_pton(AF_INET6, address, &addr);
+
+ memset(&addr_prefix.s6_addr[i], 0, count);
+ memset(&addr.s6_addr[i], 0, count);
+
+ if (left) {
+ addr_prefix.s6_addr[i - 1] &= bits[left];
+ addr.s6_addr[i - 1] &= bits[left];
+ }
+
+ g_free(prefix);
+
+ if (memcmp(&addr_prefix, &addr, 16) == 0) {
+ ret = len;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int set_addresses(GDHCPClient *dhcp_client,
+ struct connman_dhcpv6 *dhcp)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig;
+ int entries, i;
+ GList *option, *list;
+ char **nameservers, **timeservers;
+ const char *c_address;
+ char *address = NULL;
+
+ service = __connman_service_lookup_from_network(dhcp->network);
+ if (service == NULL) {
+ connman_error("Can not lookup service");
+ return -EINVAL;
+ }
+
+ ipconfig = __connman_service_get_ip6config(service);
+ if (ipconfig == NULL) {
+ connman_error("Could not lookup ip6config");
+ return -EINVAL;
+ }
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCPV6_DNS_SERVERS);
+ entries = g_list_length(option);
+
+ nameservers = g_try_new0(char *, entries + 1);
+ if (nameservers != NULL) {
+ for (i = 0, list = option; list; list = list->next, i++)
+ nameservers[i] = g_strdup(list->data);
+ }
+
+ if (compare_string_arrays(nameservers, dhcp->nameservers) == FALSE) {
+ if (dhcp->nameservers != NULL) {
+ for (i = 0; dhcp->nameservers[i] != NULL; i++)
+ __connman_service_nameserver_remove(service,
+ dhcp->nameservers[i],
+ FALSE);
+ g_strfreev(dhcp->nameservers);
+ }
+
+ dhcp->nameservers = nameservers;
+
+ for (i = 0; dhcp->nameservers[i] != NULL; i++)
+ __connman_service_nameserver_append(service,
+ dhcp->nameservers[i],
+ FALSE);
+ } else
+ g_strfreev(nameservers);
+
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCPV6_SNTP_SERVERS);
+ entries = g_list_length(option);
+
+ timeservers = g_try_new0(char *, entries + 1);
+ if (timeservers != NULL) {
+ for (i = 0, list = option; list; list = list->next, i++)
+ timeservers[i] = g_strdup(list->data);
+ }
+
+ if (compare_string_arrays(timeservers, dhcp->timeservers) == FALSE) {
+ if (dhcp->timeservers != NULL) {
+ for (i = 0; dhcp->timeservers[i] != NULL; i++)
+ __connman_service_timeserver_remove(service,
+ dhcp->timeservers[i]);
+ g_strfreev(dhcp->timeservers);
+ }
+
+ dhcp->timeservers = timeservers;
+
+ for (i = 0; dhcp->timeservers[i] != NULL; i++)
+ __connman_service_timeserver_append(service,
+ dhcp->timeservers[i]);
+ } else
+ g_strfreev(timeservers);
+
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCPV6_IA_NA);
+ if (option != NULL)
+ address = g_strdup(option->data);
+ else {
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCPV6_IA_TA);
+ if (option != NULL)
+ address = g_strdup(option->data);
+ }
+
+ c_address = __connman_ipconfig_get_local(ipconfig);
+
+ if (address != NULL &&
+ ((c_address != NULL &&
+ g_strcmp0(address, c_address) != 0) ||
+ (c_address == NULL))) {
+ int prefix_len;
+
+ /* Is this prefix part of the subnet we are suppose to use? */
+ prefix_len = check_ipv6_addr_prefix(dhcp->prefixes, address);
+
+ __connman_ipconfig_set_local(ipconfig, address);
+ __connman_ipconfig_set_prefixlen(ipconfig, prefix_len);
+
+ DBG("new address %s/%d", address, prefix_len);
+ }
+
+ return 0;
+}
+
static int dhcpv6_release(struct connman_dhcpv6 *dhcp)
{
DBG("dhcp %p", dhcp);
return 0;
}
+static void advertise_cb(GDHCPClient *dhcp_client, gpointer user_data)
+{
+ struct connman_dhcpv6 *dhcp = user_data;
+
+ DBG("dhcpv6 advertise msg %p", dhcp);
+}
+
+static void solicitation_cb(GDHCPClient *dhcp_client, gpointer user_data)
+{
+ /* We get here if server supports rapid commit */
+ struct connman_dhcpv6 *dhcp = user_data;
+
+ DBG("dhcpv6 solicitation msg %p", dhcp);
+
+ if (dhcp->timeout > 0) {
+ g_source_remove(dhcp->timeout);
+ dhcp->timeout = 0;
+ }
+
+ set_addresses(dhcp_client, dhcp);
+}
+
+static gboolean timeout_solicitation(gpointer user_data)
+{
+ struct connman_dhcpv6 *dhcp = user_data;
+
+ dhcp->RT = calc_delay(dhcp->RT, SOL_MAX_RT);
+
+ DBG("solicit RT timeout %d msec", dhcp->RT);
+
+ dhcp->timeout = g_timeout_add(dhcp->RT, timeout_solicitation, dhcp);
+
+ g_dhcp_client_start(dhcp->dhcp_client, NULL);
+
+ return FALSE;
+}
+
+static int dhcpv6_solicitation(struct connman_dhcpv6 *dhcp)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig_ipv6;
+ GDHCPClient *dhcp_client;
+ GDHCPClientError error;
+ int index, ret;
+
+ DBG("dhcp %p", dhcp);
+
+ index = connman_network_get_index(dhcp->network);
+
+ dhcp_client = g_dhcp_client_new(G_DHCP_IPV6, index, &error);
+ if (error != G_DHCP_CLIENT_ERROR_NONE)
+ return -EINVAL;
+
+ if (getenv("CONNMAN_DHCPV6_DEBUG"))
+ g_dhcp_client_set_debug(dhcp_client, dhcpv6_debug, "DHCPv6");
+
+ service = __connman_service_lookup_from_network(dhcp->network);
+ if (service == NULL)
+ return -EINVAL;
+
+ ret = set_duid(service, dhcp->network, dhcp_client, index);
+ if (ret < 0)
+ return ret;
+
+ g_dhcp_client_set_request(dhcp_client, G_DHCPV6_CLIENTID);
+ g_dhcp_client_set_request(dhcp_client, G_DHCPV6_RAPID_COMMIT);
+ g_dhcp_client_set_request(dhcp_client, G_DHCPV6_DNS_SERVERS);
+ g_dhcp_client_set_request(dhcp_client, G_DHCPV6_SNTP_SERVERS);
+
+ g_dhcpv6_client_set_oro(dhcp_client, 2, G_DHCPV6_DNS_SERVERS,
+ G_DHCPV6_SNTP_SERVERS);
+
+ ipconfig_ipv6 = __connman_service_get_ip6config(service);
+ dhcp->use_ta = __connman_ipconfig_ipv6_privacy_enabled(ipconfig_ipv6);
+
+ g_dhcpv6_client_set_ia(dhcp_client, index,
+ dhcp->use_ta == TRUE ? G_DHCPV6_IA_TA : G_DHCPV6_IA_NA,
+ NULL, NULL, FALSE);
+
+ clear_callbacks(dhcp_client);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_SOLICITATION,
+ solicitation_cb, dhcp);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_ADVERTISE,
+ advertise_cb, dhcp);
+
+ dhcp->dhcp_client = dhcp_client;
+
+ return g_dhcp_client_start(dhcp_client, NULL);
+}
+
+static gboolean start_solicitation(gpointer user_data)
+{
+ struct connman_dhcpv6 *dhcp = user_data;
+
+ /* Set the retransmission timeout, RFC 3315 chapter 14 */
+ dhcp->RT = SOL_TIMEOUT * (1 + get_random());
+
+ DBG("solicit initial RT timeout %d msec", dhcp->RT);
+
+ dhcp->timeout = g_timeout_add(dhcp->RT, timeout_solicitation, dhcp);
+
+ dhcpv6_solicitation(dhcp);
+
+ return FALSE;
+}
+
+int __connman_dhcpv6_start(struct connman_network *network,
+ GSList *prefixes, dhcp_cb callback)
+{
+ struct connman_dhcpv6 *dhcp;
+ int delay;
+
+ DBG("");
+
+ dhcp = g_try_new0(struct connman_dhcpv6, 1);
+ if (dhcp == NULL)
+ return -ENOMEM;
+
+ dhcp->network = network;
+ dhcp->callback = callback;
+ dhcp->prefixes = prefixes;
+
+ connman_network_ref(network);
+
+ g_hash_table_replace(network_table, network, dhcp);
+
+ /* Initial timeout, RFC 3315, 17.1.2 */
+ delay = rand() % 1000;
+
+ dhcp->timeout = g_timeout_add(delay, start_solicitation, dhcp);
+
+ return 0;
+}
+
void __connman_dhcpv6_stop(struct connman_network *network)
{
DBG("");
stop_dhcpv6(network);
}
+static gboolean dhcpv6_set_addresses(struct connman_network *network)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig_ipv6;
+ int err = -EINVAL;
+
+ service = __connman_service_lookup_from_network(network);
+ if (service == NULL)
+ goto err;
+
+ connman_network_set_associating(network, FALSE);
+
+ network->connecting = FALSE;
+
+ ipconfig_ipv6 = __connman_service_get_ip6config(service);
+ err = __connman_ipconfig_address_add(ipconfig_ipv6);
+ if (err < 0)
+ goto err;
+
+ err = __connman_ipconfig_gateway_add(ipconfig_ipv6);
+ if (err < 0)
+ goto err;
+
+ return 0;
+
+err:
+ connman_network_set_error(network,
+ CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
+ return err;
+}
+
+static void dhcpv6_callback(struct connman_network *network,
+ connman_bool_t success)
+{
+ DBG("success %d", success);
+
+ /* Start the renew process if necessary */
+ if (success == TRUE) {
+
+ if (dhcpv6_set_addresses(network) < 0) {
+ stop_dhcpv6(network);
+ return;
+ }
+
+ return;
+ } else
+ stop_dhcpv6(network);
+}
+
static void check_dhcpv6(struct nd_router_advert *reply,
unsigned int length, void *user_data)
{
struct connman_network *network = user_data;
+ GSList *prefixes;
DBG("reply %p", reply);
network->router_solicit_count = 0;
- /* We do stateless DHCPv6 only if router advertisement says so */
- if (reply->nd_ra_flags_reserved & ND_RA_FLAG_OTHER)
+ prefixes = __connman_inet_ipv6_get_prefixes(reply, length);
+
+ /*
+ * We do stateful/stateless DHCPv6 if router advertisement says so.
+ */
+ if (reply->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED)
+ __connman_dhcpv6_start(network, prefixes, dhcpv6_callback);
+ else if (reply->nd_ra_flags_reserved & ND_RA_FLAG_OTHER)
__connman_dhcpv6_start_info(network, dhcpv6_info_callback);
connman_network_unref(network);
case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
case CONNMAN_IPCONFIG_METHOD_OFF:
break;
+ case CONNMAN_IPCONFIG_METHOD_DHCP:
case CONNMAN_IPCONFIG_METHOD_AUTO:
autoconf_ipv6_set(network);
break;
return FALSE;
}
break;
- case CONNMAN_IPCONFIG_METHOD_DHCP:
- break;
}
switch (ipv4_method) {
case CONNMAN_IPCONFIG_METHOD_OFF:
case CONNMAN_IPCONFIG_METHOD_FIXED:
case CONNMAN_IPCONFIG_METHOD_MANUAL:
- case CONNMAN_IPCONFIG_METHOD_DHCP:
break;
+ case CONNMAN_IPCONFIG_METHOD_DHCP:
case CONNMAN_IPCONFIG_METHOD_AUTO:
stop_dhcpv6(network);
break;
projects / platform / upstream / connman.git / commitdiff