diff options
Diffstat (limited to 'gdhcp/common.h')
| -rw-r--r-- | gdhcp/common.h | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/gdhcp/common.h b/gdhcp/common.h index 3aab3d21..ae4029c9 100644 --- a/gdhcp/common.h +++ b/gdhcp/common.h @@ -45,6 +45,10 @@ 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[ETH_ALEN] __attribute__((aligned(2))) = { @@ -89,6 +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 @@ -130,6 +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, @@ -156,24 +186,35 @@ 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); 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); |