technology: return already enabled when tethering is enabled

[framework/connectivity/connman.git] / gdhcp / common.h

diff --git a/gdhcp/common.h b/gdhcp/common.h
index 5b6fe58..13f49d8 100644 (file)
--- a/gdhcp/common.h
+++ b/gdhcp/common.h
@@ -2,7 +2,7 @@
  *
  *  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
@@ -45,12 +45,20 @@ do {                                                \
 #define CLIENT_PORT 68
 #define SERVER_PORT 67
 
+#define DHCPV6_CLIENT_PORT 546
+#define DHCPV6_SERVER_PORT 547
+#define MAX_DHCPV6_PKT_SIZE 1500
+
 #define EXTEND_FOR_BUGGY_SERVERS 80
 
-static const uint8_t MAC_BCAST_ADDR[6] __attribute__((aligned(2))) = {
+static const uint8_t MAC_BCAST_ADDR[ETH_ALEN] __attribute__((aligned(2))) = {
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 };
 
+static const uint8_t MAC_ANY_ADDR[ETH_ALEN] __attribute__((aligned(2))) = {
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
 /* DHCP packet */
 #define DHCP_MAGIC              0x63825363
 #define DHCP_OPTIONS_BUFSIZE    308
@@ -85,6 +93,14 @@ struct ip_udp_dhcp_packet {
        struct dhcp_packet data;
 } __attribute__((packed));
 
+/* See RFC 3315 */
+struct dhcpv6_packet {
+       uint8_t message;
+       uint8_t transaction_id[3];
+       uint8_t options[];
+} __attribute__((packed));
+
+
 /* See RFC 2132 */
 #define DHCP_PADDING           0x00
 #define DHCP_SUBNET            0x01
@@ -126,6 +142,24 @@ struct ip_udp_dhcp_packet {
 #define DHCP_MINTYPE DHCPDISCOVER
 #define DHCP_MAXTYPE DHCPINFORM
 
+/* Message types for DHCPv6, RFC 3315 sec 5.3 */
+#define DHCPV6_SOLICIT         1
+#define DHCPV6_ADVERTISE       2
+#define DHCPV6_REQUEST         3
+#define DHCPV6_CONFIRM         4
+#define DHCPV6_RENEW           5
+#define DHCPV6_REBIND          6
+#define DHCPV6_REPLY           7
+#define DHCPV6_RELEASE         8
+#define DHCPV6_DECLINE         9
+#define DHCPV6_RECONFIGURE     10
+#define DHCPV6_INFORMATION_REQ 11
+
+/*
+ * DUID time starts 2000-01-01.
+ */
+#define DUID_TIME_EPOCH 946684800
+
 typedef enum {
        OPTION_UNKNOWN,
        OPTION_IP,
@@ -152,22 +186,37 @@ static const uint8_t dhcp_option_lengths[] = {
 };
 
 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,
+                               uint16_t *pkt_len, uint8_t *addopt);
 void dhcp_add_simple_option(struct dhcp_packet *packet,
                                uint8_t code, uint32_t data);
 GDHCPOptionType dhcp_get_code_type(uint8_t code);
+GDHCPOptionType dhcpv6_get_code_type(uint16_t code);
 
 uint16_t dhcp_checksum(void *addr, int count);
 
 void dhcp_init_header(struct dhcp_packet *packet, char type);
+void dhcpv6_init_header(struct dhcpv6_packet *packet, uint8_t type);
 
 int dhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt,
                        uint32_t source_ip, int source_port,
                        uint32_t dest_ip, int dest_port,
                        const uint8_t *dest_arp, int ifindex);
+int dhcpv6_send_packet(int index, struct dhcpv6_packet *dhcp_pkt, int len);
 int dhcp_send_kernel_packet(struct dhcp_packet *dhcp_pkt,
                        uint32_t source_ip, int source_port,
                        uint32_t dest_ip, int dest_port);
-int dhcp_l3_socket(int port, const char *interface);
+int dhcp_l3_socket(int port, const char *interface, int family);
 int dhcp_recv_l3_packet(struct dhcp_packet *packet, int fd);
+int dhcpv6_recv_l3_packet(struct dhcpv6_packet **packet, unsigned char *buf,
+                       int buf_len, int fd);
+int dhcp_l3_socket_send(int index, int port, int family);
+
+char *get_interface_name(int index);
+gboolean interface_is_up(int index);