*
* DHCP client library with GLib integration
*
- * Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
+ * Copyright (C) 2009-2012 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,
+ REQUEST,
+ RENEW,
+ REBIND,
+ RELEASE,
} ClientState;
struct _GDHCPClient {
uint32_t server_ip;
uint32_t requested_ip;
char *assigned_ip;
+ time_t start;
uint32_t lease_seconds;
ListenMode listen_mode;
int listener_sockfd;
gpointer debug_data;
GDHCPClientEventFunc information_req_cb;
gpointer information_req_data;
+ GDHCPClientEventFunc solicitation_cb;
+ gpointer solicitation_data;
+ GDHCPClientEventFunc advertise_cb;
+ gpointer advertise_data;
+ GDHCPClientEventFunc request_cb;
+ gpointer request_data;
+ GDHCPClientEventFunc renew_cb;
+ gpointer renew_data;
+ GDHCPClientEventFunc rebind_cb;
+ gpointer rebind_data;
+ GDHCPClientEventFunc release_cb;
+ gpointer release_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;
+ time_t last_renew;
+ time_t last_rebind;
+ time_t expire;
};
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;
+
+ case G_DHCPV6_DNS_SERVERS:
+ break;
+
+ case G_DHCPV6_SNTP_SERVERS:
+ break;
+
default:
break;
}
add_binary_option, packet);
}
+/*
+ * Return an RFC 951- and 2131-complaint BOOTP 'secs' value that
+ * represents the number of seconds elapsed from the start of
+ * attempting DHCP to satisfy some DHCP servers that allow for an
+ * "authoritative" reply before responding.
+ */
+static uint16_t dhcp_attempt_secs(GDHCPClient *dhcp_client)
+{
+ return htons(MIN(time(NULL) - dhcp_client->start, UINT16_MAX));
+}
+
static int send_discover(GDHCPClient *dhcp_client, uint32_t requested)
{
struct dhcp_packet packet;
init_packet(dhcp_client, &packet, DHCPDISCOVER);
packet.xid = dhcp_client->xid;
+ packet.secs = dhcp_attempt_secs(dhcp_client);
if (requested)
dhcp_add_simple_option(&packet, DHCP_REQUESTED_IP, requested);
init_packet(dhcp_client, &packet, DHCPREQUEST);
packet.xid = dhcp_client->xid;
+ packet.secs = dhcp_attempt_secs(dhcp_client);
dhcp_add_simple_option(&packet, DHCP_REQUESTED_IP,
dhcp_client->requested_ip);
get_interface_mac_address(index, &(*duid)[2 + 2 + 4]);
(*duid)[2] = 0;
(*duid)[3] = type;
- duid_time = time(0) - DUID_TIME_EPOCH;
+ duid_time = time(NULL) - DUID_TIME_EPOCH;
(*duid)[4] = duid_time >> 24;
(*duid)[5] = duid_time >> 16;
(*duid)[6] = duid_time >> 8;
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,
+ time_t *last_renew, time_t *last_rebind,
+ time_t *expire)
+{
+ 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;
+
+ if (last_renew != NULL)
+ *last_renew = dhcp_client->last_renew;
+
+ if (last_rebind != NULL)
+ *last_rebind = dhcp_client->last_rebind;
+
+ if (expire != NULL)
+ *expire = dhcp_client->expire;
+
+ 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_dhcpv6_request(GDHCPClient *dhcp_client)
+{
+ return send_dhcpv6_msg(dhcp_client, DHCPV6_REQUEST, "request");
+}
+
+static int send_dhcpv6_renew(GDHCPClient *dhcp_client)
+{
+ return send_dhcpv6_msg(dhcp_client, DHCPV6_RENEW, "renew");
+}
+
+static int send_dhcpv6_rebind(GDHCPClient *dhcp_client)
+{
+ return send_dhcpv6_msg(dhcp_client, DHCPV6_REBIND, "rebind");
+}
+
+static int send_dhcpv6_release(GDHCPClient *dhcp_client)
+{
+ return send_dhcpv6_msg(dhcp_client, DHCPV6_RELEASE, "release");
+}
+
static int send_information_req(GDHCPClient *dhcp_client)
{
return send_dhcpv6_msg(dhcp_client, DHCPV6_INFORMATION_REQ,
dhcp_client->require_list = NULL;
dhcp_client->duid = NULL;
dhcp_client->duid_len = 0;
+ dhcp_client->last_renew = dhcp_client->last_rebind = time(NULL);
+ dhcp_client->expire = 0;
*error = G_DHCP_CLIENT_ERROR_NONE;
int target_conflict;
memset(&arp, 0, sizeof(arp));
- bytes = 0;
bytes = read(dhcp_client->listener_sockfd, &arp, sizeof(arp));
if (bytes < 0)
return bytes;
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;
+
+ if (value == NULL || len < 4)
+ return NULL;
+
+ 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));
+
+ g_dhcpv6_client_set_expire(dhcp_client, valid);
+ }
+
+ 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;
+ int i;
+
+ if (value == NULL)
+ return NULL;
switch (code) {
+ case G_DHCPV6_DNS_SERVERS: /* RFC 3646, chapter 3 */
+ case G_DHCPV6_SNTP_SERVERS: /* RFC 4075, chapter 4 */
+ if (len % 16) {
+ debug(dhcp_client,
+ "%s server list length (%d) is invalid",
+ code == G_DHCPV6_DNS_SERVERS ? "DNS" : "SNTP",
+ len);
+ return NULL;
+ }
+ for (i = 0; i < len; i += 16) {
+
+ str = g_try_malloc0(INET6_ADDRSTRLEN+1);
+ if (str == NULL)
+ return list;
+
+ if (inet_ntop(AF_INET6, &value[i], str,
+ INET6_ADDRSTRLEN) == NULL)
+ g_free(str);
+ else
+ list = g_list_append(list, 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];
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);
+ ipv4ll_recv_arp_packet(dhcp_client);
return TRUE;
}
else
return TRUE;
if (dhcp_client->type == G_DHCP_IPV6) {
+ if (packet6 == NULL)
+ return TRUE;
+
count = 0;
client_id = dhcpv6_get_option(packet6, pkt_len,
G_DHCPV6_CLIENTID, &option_len, &count);
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
dhcp_client->status_code = 0;
- } else
+ } else {
message_type = dhcp_get_option(&packet, DHCP_MESSAGE_TYPE);
+ if (message_type == NULL)
+ return TRUE;
+ }
if (message_type == NULL && client_id == NULL)
/* No message type / client id option, ignore package */
}
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:
+ case REQUEST:
+ case RENEW:
+ case REBIND:
+ case RELEASE:
if (dhcp_client->type != G_DHCP_IPV6)
return TRUE;
option_len = 0;
server_id = dhcpv6_get_option(packet6, pkt_len,
G_DHCPV6_SERVERID, &option_len, &count);
- if (server_id == NULL || count != 1 || option_len == 0) {
+ if (server_id == NULL || count != 1 || option_len == 0 ||
+ (dhcp_client->server_duid_len > 0 &&
+ memcmp(dhcp_client->server_duid, server_id,
+ dhcp_client->server_duid_len) != 0)) {
/* RFC 3315, 15.10 */
debug(dhcp_client,
"server duid error, discarding msg %p/%d/%d",
}
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) {
/*
dhcp_client->information_req_data);
return TRUE;
}
+ if (dhcp_client->request_cb != NULL) {
+ dhcp_client->request_cb(dhcp_client,
+ dhcp_client->request_data);
+ return TRUE;
+ }
+ if (dhcp_client->renew_cb != NULL) {
+ dhcp_client->renew_cb(dhcp_client,
+ dhcp_client->renew_data);
+ return TRUE;
+ }
+ if (dhcp_client->rebind_cb != NULL) {
+ dhcp_client->rebind_cb(dhcp_client,
+ dhcp_client->rebind_data);
+ return TRUE;
+ }
+ if (dhcp_client->release_cb != NULL) {
+ dhcp_client->release_cb(dhcp_client,
+ dhcp_client->release_data);
+ return TRUE;
+ }
break;
default:
break;
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);
+
+ } else if (dhcp_client->request_cb) {
+ dhcp_client->state = REQUEST;
+ re = switch_listening_mode(dhcp_client, L3);
+ if (re != 0) {
+ switch_listening_mode(dhcp_client, L_NONE);
+ dhcp_client->state = 0;
+ return re;
+ }
+ send_dhcpv6_request(dhcp_client);
+
+ } else if (dhcp_client->renew_cb) {
+ dhcp_client->state = RENEW;
+ re = switch_listening_mode(dhcp_client, L3);
+ if (re != 0) {
+ switch_listening_mode(dhcp_client, L_NONE);
+ dhcp_client->state = 0;
+ return re;
+ }
+ send_dhcpv6_renew(dhcp_client);
+
+ } else if (dhcp_client->rebind_cb) {
+ dhcp_client->state = REBIND;
+ re = switch_listening_mode(dhcp_client, L3);
+ if (re != 0) {
+ switch_listening_mode(dhcp_client, L_NONE);
+ dhcp_client->state = 0;
+ return re;
+ }
+ send_dhcpv6_rebind(dhcp_client);
+
+ } else if (dhcp_client->release_cb) {
+ dhcp_client->state = RENEW;
+ re = switch_listening_mode(dhcp_client, L3);
+ if (re != 0) {
+ switch_listening_mode(dhcp_client, L_NONE);
+ dhcp_client->state = 0;
+ return re;
+ }
+ send_dhcpv6_release(dhcp_client);
}
+
return 0;
}
return re;
dhcp_client->xid = rand();
+ dhcp_client->start = time(NULL);
}
if (last_address == NULL) {
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 G_DHCP_CLIENT_EVENT_REQUEST:
+ if (dhcp_client->type == G_DHCP_IPV4)
+ return;
+ dhcp_client->request_cb = func;
+ dhcp_client->request_data = data;
+ return;
+ case G_DHCP_CLIENT_EVENT_RENEW:
+ if (dhcp_client->type == G_DHCP_IPV4)
+ return;
+ dhcp_client->renew_cb = func;
+ dhcp_client->renew_data = data;
+ return;
+ case G_DHCP_CLIENT_EVENT_REBIND:
+ if (dhcp_client->type == G_DHCP_IPV4)
+ return;
+ dhcp_client->rebind_cb = func;
+ dhcp_client->rebind_data = data;
+ return;
+ case G_DHCP_CLIENT_EVENT_RELEASE:
+ if (dhcp_client->type == G_DHCP_IPV4)
+ return;
+ dhcp_client->release_cb = func;
+ dhcp_client->release_data = data;
+ return;
}
}
case IPV4LL_PROBE:
case IPV4LL_ANNOUNCE:
case INFORMATION_REQ:
+ case SOLICITATION:
+ case REQUEST:
+ case RENEW:
+ case REBIND:
+ case RELEASE:
break;
}
return NULL;
return G_DHCP_CLIENT_ERROR_NONE;
}
-static uint8_t *alloc_dhcp_option(int code, const char *str, int extra)
+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 uint8_t *data, unsigned size)
{
uint8_t *storage;
- int len = strnlen(str, 255);
- storage = malloc(len + extra + OPT_DATA);
+ storage = g_try_malloc(size + OPT_DATA);
+ if (storage == NULL)
+ return NULL;
+
storage[OPT_CODE] = code;
- storage[OPT_LEN] = len + extra;
- memcpy(storage + extra + OPT_DATA, str, len);
+ storage[OPT_LEN] = size;
+ memcpy(&storage[OPT_DATA], data, size);
return storage;
}
+static uint8_t *alloc_dhcp_data_option(int code, const uint8_t *data, unsigned size)
+{
+ return alloc_dhcp_option(code, data, MIN(size, 255));
+}
+
+static uint8_t *alloc_dhcp_string_option(int code, const char *str)
+{
+ return alloc_dhcp_data_option(code, (const uint8_t *)str, strlen(str));
+}
+
+GDHCPClientError g_dhcp_client_set_id(GDHCPClient *dhcp_client)
+{
+ const unsigned maclen = 6;
+ const unsigned idlen = maclen + 1;
+ const uint8_t option_code = G_DHCP_CLIENT_ID;
+ uint8_t idbuf[idlen];
+ uint8_t *data_option;
+
+ idbuf[0] = ARPHRD_ETHER;
+
+ memcpy(&idbuf[1], dhcp_client->mac_address, maclen);
+
+ data_option = alloc_dhcp_data_option(option_code, idbuf, idlen);
+ if (data_option == NULL)
+ return G_DHCP_CLIENT_ERROR_NOMEM;
+
+ g_hash_table_insert(dhcp_client->send_value_hash,
+ GINT_TO_POINTER((int) option_code), data_option);
+
+ return G_DHCP_CLIENT_ERROR_NONE;
+}
+
/* 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;
if (option_code == G_DHCP_HOST_NAME && option_value != NULL) {
- binary_option = alloc_dhcp_option(option_code,
- option_value, 0);
+ binary_option = alloc_dhcp_string_option(option_code,
+ option_value);
+ if (binary_option == NULL)
+ return G_DHCP_CLIENT_ERROR_NOMEM;
g_hash_table_insert(dhcp_client->send_value_hash,
GINT_TO_POINTER((int) option_code), binary_option);
}
}
+void g_dhcpv6_client_reset_renew(GDHCPClient *dhcp_client)
+{
+ if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
+ return;
+
+ dhcp_client->last_renew = time(NULL);
+}
+
+void g_dhcpv6_client_reset_rebind(GDHCPClient *dhcp_client)
+{
+ if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
+ return;
+
+ dhcp_client->last_rebind = time(NULL);
+}
+
+void g_dhcpv6_client_set_expire(GDHCPClient *dhcp_client, uint32_t timeout)
+{
+ if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
+ return;
+
+ dhcp_client->expire = time(NULL) + timeout;
+}
+
uint16_t g_dhcpv6_client_get_status(GDHCPClient *dhcp_client)
{
if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
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);
projects / framework / connectivity / connman.git / blobdiff