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added many dhcp message functions

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hyung-hwan
2023-11-20 21:54:14 +09:00
parent 481cf38790
commit 0fb45e10d2
4 changed files with 640 additions and 41 deletions
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247
lib/hio-dhcp.h
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@ -28,6 +28,167 @@
#include <hio.h>
#include <hio-sck.h>
/* ---------------------------------------------------------------- */
#define HIO_DHCP4_SERVER_PORT (67)
#define HIO_DHCP4_CLIENT_PORT (68)
#define HIO_DHCP4_MAGIC_COOKIE (0x63825363)
/* operation code */
enum hio_dhcp4_op_t
{
HIO_DHCP4_OP_BOOTREQUEST = 1,
HIO_DHCP4_OP_BOOTREPLY = 2
};
enum hio_dhcp4_htype_t
{
HIO_DHCP4_HTYPE_ETHERNET = 1,
HIO_DHCP4_HTYPE_IEEE802 = 6,
HIO_DHCP4_HTYPE_ARCNET = 7,
HIO_DHCP4_HTYPE_APPLETALK = 8,
HIO_DHCP4_HTYPE_HDLC = 17,
HIO_DHCP4_HTYPE_ATM = 19,
HIO_DHCP4_HTYPE_INFINIBAND = 32
};
/* option codes (partial) */
enum hio_dhcp4_opt_t
{
HIO_DHCP4_OPT_PADDING = 0x00,
HIO_DHCP4_OPT_SUBNET = 0x01,
HIO_DHCP4_OPT_TIME_OFFSET = 0x02,
HIO_DHCP4_OPT_ROUTER = 0x03,
HIO_DHCP4_OPT_TIME_SERVER = 0x04,
HIO_DHCP4_OPT_NAME_SERVER = 0x05,
HIO_DHCP4_OPT_DNS_SERVER = 0x06,
HIO_DHCP4_OPT_LOG_SERVER = 0x07,
HIO_DHCP4_OPT_COOKIE_SERVER = 0x08,
HIO_DHCP4_OPT_LPR_SERVER = 0x09,
HIO_DHCP4_OPT_HOST_NAME = 0x0c,
HIO_DHCP4_OPT_BOOT_SIZE = 0x0d,
HIO_DHCP4_OPT_DOMAIN_NAME = 0x0f,
HIO_DHCP4_OPT_SWAP_SERVER = 0x10,
HIO_DHCP4_OPT_ROOT_PATH = 0x11,
HIO_DHCP4_OPT_IP_TTL = 0x17,
HIO_DHCP4_OPT_MTU = 0x1a,
HIO_DHCP4_OPT_BROADCAST = 0x1c,
HIO_DHCP4_OPT_NTP_SERVER = 0x2a,
HIO_DHCP4_OPT_WINS_SERVER = 0x2c,
HIO_DHCP4_OPT_REQUESTED_IPADDR = 0x32,
HIO_DHCP4_OPT_LEASE_TIME = 0x33,
HIO_DHCP4_OPT_OVERLOAD = 0x34, /* overload sname or file */
HIO_DHCP4_OPT_MESSAGE_TYPE = 0x35,
HIO_DHCP4_OPT_SERVER_ID = 0x36,
HIO_DHCP4_OPT_PARAM_REQ = 0x37,
HIO_DHCP4_OPT_MESSAGE = 0x38,
HIO_DHCP4_OPT_MAX_SIZE = 0x39,
HIO_DHCP4_OPT_T1 = 0x3a,
HIO_DHCP4_OPT_T2 = 0x3b,
HIO_DHCP4_OPT_VENDOR = 0x3c,
HIO_DHCP4_OPT_CLIENT_ID = 0x3d,
HIO_DHCP4_OPT_RELAY = 0x52,
HIO_DHCP4_OPT_SUBNET_SELECTION = 0x76,
HIO_DHCP4_OPT_END = 0xFF
};
/* flags for HIO_DHCP4_OPT_OVERLOAD */
enum hio_dhcp4_opt_overload_t
{
HIO_DHCP4_OPT_OVERLOAD_FILE = (1 << 0),
HIO_DHCP4_OPT_OVERLOAD_SNAME = (1 << 1)
};
/* flags for HIO_DHCP4_OPT_OVERLOAD */
enum hio_dhcp4_opt_relay_t
{
HIO_DHCP4_OPT_RELAY_CIRCUIT_ID = 1,
HIO_DHCP4_OPT_RELAY_REMOTE_ID = 2
};
/* message type */
enum hio_dhcp4_msg_t
{
HIO_DHCP4_MSG_DISCOVER = 1,
HIO_DHCP4_MSG_OFFER = 2,
HIO_DHCP4_MSG_REQUEST = 3,
HIO_DHCP4_MSG_DECLINE = 4,
HIO_DHCP4_MSG_ACK = 5,
HIO_DHCP4_MSG_NAK = 6,
HIO_DHCP4_MSG_RELEASE = 7,
HIO_DHCP4_MSG_INFORM = 8,
/*HIO_DHCP4_MSG_RENEW = 9,*/
HIO_DHCP4_MSG_LEASE_QUERY = 10,
HIO_DHCP4_MSG_LEASE_UNASSIGNED = 11,
HIO_DHCP4_MSG_LEASE_UNKNOWN = 12,
HIO_DHCP4_MSG_LEASE_ACTIVE = 13,
HIO_DHCP4_MSG_BULK_LEASE_QUERY = 14,
HIO_DHCP4_MSG_LEASE_QUERY_DONE = 15
};
/* --------------------------------------------------- */
#include <hio-pac1.h>
/* --------------------------------------------------- */
struct hio_dhcp4_pkt_hdr_t
{
hio_uint8_t op;
hio_uint8_t htype;
hio_uint8_t hlen;
hio_uint8_t hops;
hio_uint32_t xid; /* transaction id */
hio_uint16_t secs; /* seconds elapsed */
hio_uint16_t flags; /* bootp flags */
hio_uint32_t ciaddr; /* client ip */
hio_uint32_t yiaddr; /* your ip */
hio_uint32_t siaddr; /* next server ip */
hio_uint32_t giaddr; /* relay agent ip */
hio_uint8_t chaddr[16]; /* client mac */
char sname[64]; /* server host name */
char file[128]; /* boot file name */
/* options are placed after the header.
* the first four bytes of the options compose a magic cookie
* 0x63 0x82 0x53 0x63 */
};
typedef struct hio_dhcp4_pkt_hdr_t hio_dhcp4_pkt_hdr_t;
struct hio_dhcp4_opt_hdr_t
{
hio_uint8_t code;
hio_uint8_t len;
};
typedef struct hio_dhcp4_opt_hdr_t hio_dhcp4_opt_hdr_t;
/* --------------------------------------------------- */
#include <hio-upac.h>
/* --------------------------------------------------- */
typedef int (*hio_dhcp4_opt_walker_t) (hio_dhcp4_opt_hdr_t* opt);
struct hio_dhcp4_pktinf_t
{
hio_dhcp4_pkt_hdr_t* hdr;
hio_oow_t len;
};
typedef struct hio_dhcp4_pktinf_t hio_dhcp4_pktinf_t;
struct hio_dhcp4_pktbuf_t
{
hio_dhcp4_pkt_hdr_t* hdr;
hio_oow_t len;
hio_oow_t capa;
};
typedef struct hio_dhcp4_pktbuf_t hio_dhcp4_pktbuf_t;
/* ---------------------------------------------------------------- */
#define HIO_DHCP6_SERVER_PORT (547)
#define HIO_DHCP6_CLIENT_PORT (546)
#define HIO_DHCP6_HOP_COUNT_LIMIT (32)
@ -52,15 +213,26 @@ typedef enum hio_dhcp6_msg_t hio_dhcp6_msg_t;
enum hio_dhcp6_opt_t
{
HIO_DHCP6_OPT_CLIENTID = 1,
HIO_DHCP6_OPT_SERVERID = 2,
HIO_DHCP6_OPT_IA_NA = 3,
HIO_DHCP6_OPT_IA_TA = 4,
HIO_DHCP6_OPT_IAADDR = 5,
HIO_DHCP6_OPT_PREFERENCE = 7,
HIO_DHCP6_OPT_ELAPSED_TIME = 8,
HIO_DHCP6_OPT_RELAY_MESSAGE = 9,
HIO_DHCP6_OPT_INTERFACE_ID = 18
HIO_DHCP6_OPT_RAPID_COMMIT = 14,
HIO_DHCP6_OPT_USER_CLASS = 15,
HIO_DHCP6_OPT_VENDOR_CLASS = 16,
HIO_DHCP6_OPT_INTERFACE_ID = 18,
HIO_DHCP6_OPT_IA_PD = 25,
HIO_DHCP6_OPT_IAPREFIX = 26
};
typedef enum hio_dhcp6_opt_t hio_dhcp6_opt_t;
/* ---------------------------------------------------------------- */
/* --------------------------------------------------- */
#include <hio-pac1.h>
/* --------------------------------------------------- */
struct hio_dhcp6_pkt_hdr_t
{
@ -85,8 +257,9 @@ struct hio_dhcp6_opt_hdr_t
};
typedef struct hio_dhcp6_opt_hdr_t hio_dhcp6_opt_hdr_t;
/* --------------------------------------------------- */
#include <hio-upac.h>
/* --------------------------------------------------- */
struct hio_dhcp6_pktinf_t
{
@ -95,6 +268,7 @@ struct hio_dhcp6_pktinf_t
};
typedef struct hio_dhcp6_pktinf_t hio_dhcp6_pktinf_t;
/* ---------------------------------------------------------------- */
typedef struct hio_svc_dhcs_t hio_svc_dhcs_t;
@ -105,6 +279,66 @@ typedef struct hio_svc_dhcs_t hio_svc_dhcs_t;
extern "C" {
#endif
HIO_EXPORT int hio_dhcp4_init_pktbuf (
hio_dhcp4_pktbuf_t* pkt,
void* buf,
hio_oow_t capa
);
HIO_EXPORT int hio_dhcp4_add_option (
hio_dhcp4_pktbuf_t* pkt,
int code,
void* optr, /**< option data pointer */
hio_uint8_t olen /**< option data length */
);
HIO_EXPORT int hio_dhcp4_delete_option (
hio_dhcp4_pktbuf_t* pkt,
int code
);
HIO_EXPORT void hio_dhcp4_compact_options (
hio_dhcp4_pktbuf_t* pkt
);
#if 0
HIO_EXPORT int hio_dhcp4_add_options (
hio_dhcp4_pkt_hdr_t* pkt,
hio_oow_t len,
hio_oow_t max,
int code,
hio_uint8_t* optr, /* option data */
hio_uint8_t olen /* option length */
);
#endif
HIO_EXPORT int hio_dhcp4_walk_options (
const hio_dhcp4_pktinf_t* pkt,
hio_dhcp4_opt_walker_t walker
);
HIO_EXPORT hio_dhcp4_opt_hdr_t* hio_dhcp4_find_option (
const hio_dhcp4_pktinf_t* pkt,
int code
);
HIO_EXPORT hio_uint8_t* hio_dhcp4_get_relay_suboption (
const hio_uint8_t* ptr,
hio_uint8_t len,
int code,
hio_uint8_t* olen
);
/* ---------------------------------------------------------------- */
HIO_EXPORT hio_dhcp6_opt_hdr_t* hio_dhcp6_find_option (
const hio_dhcp6_pktinf_t* pkt,
int code
);
/* ---------------------------------------------------------------- */
HIO_EXPORT hio_svc_dhcs_t* hio_svc_dhcs_start (
hio_t* hio,
const hio_skad_t* local_binds,
@ -118,8 +352,7 @@ HIO_EXPORT void hio_svc_dhcs_stop (
#if defined(HIO_HAVE_INLINE)
static HIO_INLINE hio_t* hio_svc_dhcs_gethio(hio_svc_dhcs_t* svc) { return hio_svc_gethio((hio_svc_t*)svc); }
#else
# define hio_svc_dhcs_gethio(svc) hio_svc_gethio(svc)
#define hio_svc_dhcs_gethio(svc) hio_svc_gethio(svc)
#endif