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added qse_ip6adxx_t with address classification functions

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defined data types and routines and dhcpv6 messages
This commit is contained in:
hyung-hwan
2018-10-16 15:59:24 +00:00
parent 2915a591f0
commit e936bf3502
11 changed files with 514 additions and 222 deletions
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156
qse/include/qse/cmn/ipad.h
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@ -40,6 +40,35 @@ struct qse_ip4ad_t
qse_uint32_t value;
};
struct qse_ip6ad_t
{
qse_uint8_t value[16];
};
#define QSE_IP4AD_IS_LOOPBACK(addr) ((((addr)->value) & QSE_CONST_HTON32(0xFF000000)) == QSE_CONST_HTON32(0x7F000000))
#define QSE_IP6AD_IS_LOOPBACK(addr) \
((addr)->value[0] == 0 && (addr)->value[1] == 0 && \
(addr)->value[2] == 0 && (addr)->value[3] == 0 && \
(addr)->value[4] == 0 && (addr)->value[5] == 0 && \
(addr)->value[6] == 0 && (addr)->value[7] == 0 && \
(addr)->value[8] == 0 && (addr)->value[9] == 0 && \
(addr)->value[10] == 0 && (addr)->value[11] == 0 && \
(addr)->value[12] == 0 && (addr)->value[13] == 0 && \
(addr)->value[14] == 0 && (addr)->value[15] == 1)
// FE80::/10
#define QSE_IP6AD_IS_LINK_LOCAL(addr) (this->value[0] == 0xFE && (this->value[1] & 0xC0) == 0x80)
// FEC0::/10
#define QSE_IP6AD_IS_SITE_LOCAL(addr) (this->value[0] == 0xFE && (this->value[1] & 0xC0) == 0xC0)
#define QSE_IP6AD_IS_MULTICAST(addr) ((addr)->value[0] == 0xFF)
#define QSE_IP6AD_IS_MULTICAST_LINK_LOCAL(addr) ((addr)->value[0] == 0xFF && ((addr)->value[1] & 0x0F) == 0x02)
#define QSE_IP6AD_IS_MULTICAST_SITE_LOCAL(addr) ((addr)->value[0] == 0xFF && ((addr)->value[1] & 0x0F) == 0x05)
#define QSE_IP6AD_IS_MULTICAST_ORGANIZATION(addr) ((addr)->value[0] == 0xFF && ((addr)->value[1] & 0x0F) == 0x08)
#define QSE_IP6AD_IS_MULTICAST_GLOBAL(addr) ((addr)->value[0] == 0xFF && ((addr)->value[1] & 0x0F) == 0x0E)
#define QSE_IP6AD_IS_MULTICAST_INTERFACE_LOCAL(addr) ((addr)->value[0] == 0xFF && ((addr)->value[1] & 0x0F) == 0x01)
#if defined(__cplusplus)
struct qse_ip4adxx_t: public qse_ip4ad_t
{
@ -111,15 +140,132 @@ struct qse_ip4adxx_t: public qse_ip4ad_t
return x;
}
};
struct qse_ip6adxx_t: public qse_ip6ad_t
{
struct ad64_t
{
qse_uint64_t w[2];
};
qse_ip6adxx_t ()
{
register ad64_t* x = (ad64_t*)this->value;
x->w[0] = 0;
x->w[1] = 0;
}
qse_ip6adxx_t (qse_uint8_t (*value)[16])
{
register ad64_t* x = (ad64_t*)this->value;
x->w[0] = ((ad64_t*)value)->w[0];
x->w[1] = ((ad64_t*)value)->w[1];
}
qse_ip6adxx_t (qse_uint8_t (&value)[16])
{
register ad64_t* x = (ad64_t*)this->value;
x->w[0] = ((ad64_t*)&value)->w[0];
x->w[1] = ((ad64_t*)&value)->w[1];
}
bool operator== (const qse_ip4adxx_t& peer) const
{
register ad64_t* x = (ad64_t*)this->value;
register ad64_t* y = (ad64_t*)&peer.value;
return x->w[0] == y->w[0] && x->w[1] == y->w[1];
}
bool operator!= (const qse_ip4adxx_t& peer) const
{
register ad64_t* x = (ad64_t*)this->value;
register ad64_t* y = (ad64_t*)&peer.value;
return x->w[0] != y->w[0] || x->w[1] != y->w[1];
}
qse_ip6adxx_t& operator= (const qse_ip6adxx_t& v)
{
register ad64_t* x = (ad64_t*)this->value;
x->w[0] = ((ad64_t*)&v)->w[0];
x->w[1] = ((ad64_t*)&v)->w[1];
return *this;
}
bool isZero() const
{
register ad64_t* x = (ad64_t*)this->value;
return x->w[0] == 0 && x->w[1] == 0;
}
bool isLoopback() const
{
return QSE_IP6AD_IS_LOOPBACK(this);
}
bool isLinkLocal() const
{
// FE80::/10
return QSE_IP6AD_IS_LINK_LOCAL(this);
}
bool isSiteLocal() const
{
// FEC0::/10
return QSE_IP6AD_IS_SITE_LOCAL(this);
}
// multicast addresses
// ff02:: Link Local: spans the same topological region as the corresponding unicast scope, i.e. all nodes on the same LAN.
// ff05:: Site local: is intended to span a single site
// ff08:: Organization scope: Intended to span multiple sizes within the same organization
// ff0e:: Global scope, assigned by IANA.
// ff01:: Interface local: Spans only a single interface on a node and is useful only for loopback transmission of multicast.
bool isMulticast() const
{
return QSE_IP6AD_IS_MULTICAST(this);
}
bool isMulticastLinkLocal() const
{
return QSE_IP6AD_IS_MULTICAST_LINK_LOCAL(this);
}
bool isMulticastSiteLocal() const
{
return QSE_IP6AD_IS_MULTICAST_SITE_LOCAL(this);
}
bool isMulticastOrganization() const
{
return QSE_IP6AD_IS_MULTICAST_ORGANIZATION(this);
}
bool isMulticastGlobal() const
{
return QSE_IP6AD_IS_MULTICAST_GLOBAL(this);
}
bool isMulticastInterfaceLocal() const
{
return QSE_IP6AD_IS_MULTICAST_INTERFACE_LOCAL(this);
}
bool isV4Mapped () const
{
return this->value[0] == 0x00 && this->value[1] == 0x00 &&
this->value[2] == 0x00 && this->value[3] == 0x00 &&
this->value[4] == 0x00 && this->value[5] == 0x00 &&
this->value[6] == 0x00 && this->value[7] == 0x00 &&
this->value[8] == 0x00 && this->value[9] == 0x00 &&
this->value[10] == 0xFF && this->value[11] == 0xFF;
}
};
#endif
struct qse_ip6ad_t
{
qse_uint8_t value[16];
};
#include <qse/unpack.h>
#define QSE_IP4AD_IN_LOOPBACK(addr) ((((addr)->value) & QSE_CONST_HTON32(0xFF000000)) == QSE_CONST_HTON32(0x7F000000))
#if defined(__cplusplus)
extern "C" {

4
qse/include/qse/dhcp/Makefile.am
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@ -1,5 +1,7 @@
pkgincludedir = $(includedir)/qse/dhcp
pkginclude_HEADERS = \
dhcpmsg.h
dhcpmsg.h \
dhcp4msg.h \
dhcp6msg.h

4
qse/include/qse/dhcp/Makefile.in
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@ -340,7 +340,9 @@ top_build_prefix = @top_build_prefix@
top_builddir = @top_builddir@
top_srcdir = @top_srcdir@
pkginclude_HEADERS = \
dhcpmsg.h
dhcpmsg.h \
dhcp4msg.h \
dhcp6msg.h
all: all-am

217
qse/include/qse/dhcp/dhcp4msg.h Normal file
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@ -0,0 +1,217 @@
#ifndef _QSE_DHCP_DHCP4MSG_H_
#define _QSE_DHCP_DHCP4MSG_H_
#include <qse/types.h>
#include <qse/macros.h>
#define QSE_DHCP4_SERVER_PORT 67
#define QSE_DHCP4_CLIENT_PORT 68
#define QSE_DHCP4_MAGIC_COOKIE 0x63825363
/* operation code */
enum qse_dhcp4_op_t
{
QSE_DHCP4_OP_BOOTREQUEST = 1,
QSE_DHCP4_OP_BOOTREPLY = 2
};
enum qse_dhcp4_htype_t
{
QSE_DHCP4_HTYPE_ETHERNET = 1,
QSE_DHCP4_HTYPE_IEEE802 = 6,
QSE_DHCP4_HTYPE_ARCNET = 7,
QSE_DHCP4_HTYPE_APPLETALK = 8,
QSE_DHCP4_HTYPE_HDLC = 17,
QSE_DHCP4_HTYPE_ATM = 19,
QSE_DHCP4_HTYPE_INFINIBAND = 32
};
/* option codes (partial) */
enum qse_dhcp4_opt_t
{
QSE_DHCP4_OPT_PADDING = 0x00,
QSE_DHCP4_OPT_SUBNET = 0x01,
QSE_DHCP4_OPT_TIME_OFFSET = 0x02,
QSE_DHCP4_OPT_ROUTER = 0x03,
QSE_DHCP4_OPT_TIME_SERVER = 0x04,
QSE_DHCP4_OPT_NAME_SERVER = 0x05,
QSE_DHCP4_OPT_DNS_SERVER = 0x06,
QSE_DHCP4_OPT_LOG_SERVER = 0x07,
QSE_DHCP4_OPT_COOKIE_SERVER = 0x08,
QSE_DHCP4_OPT_LPR_SERVER = 0x09,
QSE_DHCP4_OPT_HOST_NAME = 0x0c,
QSE_DHCP4_OPT_BOOT_SIZE = 0x0d,
QSE_DHCP4_OPT_DOMAIN_NAME = 0x0f,
QSE_DHCP4_OPT_SWAP_SERVER = 0x10,
QSE_DHCP4_OPT_ROOT_PATH = 0x11,
QSE_DHCP4_OPT_IP_TTL = 0x17,
QSE_DHCP4_OPT_MTU = 0x1a,
QSE_DHCP4_OPT_BROADCAST = 0x1c,
QSE_DHCP4_OPT_NTP_SERVER = 0x2a,
QSE_DHCP4_OPT_WINS_SERVER = 0x2c,
QSE_DHCP4_OPT_REQUESTED_IPADDR = 0x32,
QSE_DHCP4_OPT_LEASE_TIME = 0x33,
QSE_DHCP4_OPT_OVERLOAD = 0x34, /* overload sname or file */
QSE_DHCP4_OPT_MESSAGE_TYPE = 0x35,
QSE_DHCP4_OPT_SERVER_ID = 0x36,
QSE_DHCP4_OPT_PARAM_REQ = 0x37,
QSE_DHCP4_OPT_MESSAGE = 0x38,
QSE_DHCP4_OPT_MAX_SIZE = 0x39,
QSE_DHCP4_OPT_T1 = 0x3a,
QSE_DHCP4_OPT_T2 = 0x3b,
QSE_DHCP4_OPT_VENDOR = 0x3c,
QSE_DHCP4_OPT_CLIENT_ID = 0x3d,
QSE_DHCP4_OPT_RELAY = 0x52,
QSE_DHCP4_OPT_SUBNET_SELECTION = 0x76,
QSE_DHCP4_OPT_END = 0xFF
};
/* flags for QSE_DHCP4_OPT_OVERLOAD */
enum qse_dhcp4_opt_overload_t
{
QSE_DHCP4_OPT_OVERLOAD_FILE = (1 << 0),
QSE_DHCP4_OPT_OVERLOAD_SNAME = (1 << 1)
};
/* flags for QSE_DHCP4_OPT_OVERLOAD */
enum qse_dhcp4_opt_relay_t
{
QSE_DHCP4_OPT_RELAY_CIRCUIT_ID = 1,
QSE_DHCP4_OPT_RELAY_REMOTE_ID = 2
};
/* message type */
enum qse_dhcp4_msg_t
{
QSE_DHCP4_MSG_DISCOVER = 1,
QSE_DHCP4_MSG_OFFER = 2,
QSE_DHCP4_MSG_REQUEST = 3,
QSE_DHCP4_MSG_DECLINE = 4,
QSE_DHCP4_MSG_ACK = 5,
QSE_DHCP4_MSG_NAK = 6,
QSE_DHCP4_MSG_RELEASE = 7,
QSE_DHCP4_MSG_INFORM = 8,
/*QSE_DHCP4_MSG_RENEW = 9,*/
QSE_DHCP4_MSG_LEASE_QUERY = 10,
QSE_DHCP4_MSG_LEASE_UNASSIGNED = 11,
QSE_DHCP4_MSG_LEASE_UNKNOWN = 12,
QSE_DHCP4_MSG_LEASE_ACTIVE = 13,
QSE_DHCP4_MSG_BULK_LEASE_QUERY = 14,
QSE_DHCP4_MSG_LEASE_QUERY_DONE = 15
};
/* --------------------------------------------------- */
#include <qse/pack1.h>
/* --------------------------------------------------- */
struct qse_dhcp4_pkt_hdr_t
{
qse_uint8_t op;
qse_uint8_t htype;
qse_uint8_t hlen;
qse_uint8_t hops;
qse_uint32_t xid; /* transaction id */
qse_uint16_t secs; /* seconds elapsed */
qse_uint16_t flags; /* bootp flags */
qse_uint32_t ciaddr; /* client ip */
qse_uint32_t yiaddr; /* your ip */
qse_uint32_t siaddr; /* next server ip */
qse_uint32_t giaddr; /* relay agent ip */
qse_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 qse_dhcp4_pkt_hdr_t qse_dhcp4_pkt_hdr_t;
struct qse_dhcp4_opt_hdr_t
{
qse_uint8_t code;
qse_uint8_t len;
};
typedef struct qse_dhcp4_opt_hdr_t qse_dhcp4_opt_hdr_t;
/* --------------------------------------------------- */
#include <qse/unpack.h>
/* --------------------------------------------------- */
typedef int (*qse_dhcp4_opt_walker_t) (qse_dhcp4_opt_hdr_t* opt);
struct qse_dhcp4_pktinf_t
{
qse_dhcp4_pkt_hdr_t* hdr;
qse_size_t len;
};
typedef struct qse_dhcp4_pktinf_t qse_dhcp4_pktinf_t;
struct qse_dhcp4_pktbuf_t
{
qse_dhcp4_pkt_hdr_t* hdr;
qse_size_t len;
qse_size_t capa;
};
typedef struct qse_dhcp4_pktbuf_t qse_dhcp4_pktbuf_t;
#ifdef __cplusplus
extern "C" {
#endif
QSE_EXPORT int qse_dhcp4_initialize_pktbuf (
qse_dhcp4_pktbuf_t* pkt,
void* buf,
qse_size_t capa
);
QSE_EXPORT int qse_dhcp4_add_option (
qse_dhcp4_pktbuf_t* pkt,
int code,
void* optr, /**< option data pointer */
qse_uint8_t olen /**< option data length */
);
QSE_EXPORT void qse_dhcp4_compact_options (
qse_dhcp4_pktbuf_t* pkt
);
#if 0
QSE_EXPORT int qse_dhcp4_add_options (
qse_dhcp4_pkt_hdr_t* pkt,
qse_size_t len,
qse_size_t max,
int code,
qse_uint8_t* optr, /* option data */
qse_uint8_t olen /* option length */
);
#endif
QSE_EXPORT int qse_dhcp4_walk_options (
const qse_dhcp4_pktinf_t* pkt,
qse_dhcp4_opt_walker_t walker
);
QSE_EXPORT qse_dhcp4_opt_hdr_t* qse_dhcp4_find_option (
const qse_dhcp4_pktinf_t* pkt,
int code
);
QSE_EXPORT qse_uint8_t* qse_dhcp4_get_relay_suboption (
const qse_uint8_t* ptr,
qse_uint8_t len,
int code,
qse_uint8_t* olen
);
#ifdef __cplusplus
}
#endif
#endif

88
qse/include/qse/dhcp/dhcp6msg.h Normal file
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@ -0,0 +1,88 @@
#ifndef _QSE_DHCP_DHCP6MSG_H_
#define _QSE_DHCP_DHCP6MSG_H_
#include <qse/types.h>
#include <qse/macros.h>
#define QSE_DHCP6_SERVER_PORT 547
#define QSE_DHCP6_CLIENT_PORT 546
#define QSE_DHCP6_HOP_COUNT_LIMIT 32
enum qse_dhcp6_msg_t
{
QSE_DHCP6_MSG_SOLICIT = 1,
QSE_DHCP6_MSG_ADVERTISE = 2,
QSE_DHCP6_MSG_REQUEST = 3,
QSE_DHCP6_MSG_CONFIRM = 4,
QSE_DHCP6_MSG_RENEW = 5,
QSE_DHCP6_MSG_REBIND = 6,
QSE_DHCP6_MSG_REPLY = 7,
QSE_DHCP6_MSG_RELEASE = 8,
QSE_DHCP6_MSG_DECLINE = 9,
QSE_DHCP6_MSG_RECONFIGURE = 10,
QSE_DHCP6_MSG_INFOREQ = 11,
QSE_DHCP6_MSG_RELAYFORW = 12,
QSE_DHCP6_MSG_RELAYREPL = 13,
};
typedef enum qse_dhcp6_msg_t qse_dhcp6_msg_t;
enum qse_dhcp6_opt_t
{
QSE_DHCP6_OPT_RELAY_MESSAGE = 9,
QSE_DHCP6_OPT_INTERFACE_ID = 18
};
typedef enum qse_dhcp6_opt_t qse_dhcp6_opt_t;
/* --------------------------------------------------- */
#include <qse/pack1.h>
/* --------------------------------------------------- */
struct qse_dhcp6_pkt_hdr_t
{
qse_uint8_t msgtype;
qse_uint8_t transid[3];
};
typedef struct qse_dhcp6_pkt_hdr_t qse_dhcp6_pkt_hdr_t;
struct qse_dhcp6_relay_hdr_t
{
qse_uint8_t msgtype; /* RELAY-FORW, RELAY-REPL */
qse_uint8_t hopcount;
qse_uint8_t linkaddr[16];
qse_uint8_t peeraddr[16];
};
typedef struct qse_dhcp6_relay_hdr_t qse_dhcp6_relay_hdr_t;
struct qse_dhcp6_opt_hdr_t
{
qse_uint16_t code;
qse_uint16_t len; /* length of option data, excludes the option header */
};
typedef struct qse_dhcp6_opt_hdr_t qse_dhcp6_opt_hdr_t;
/* --------------------------------------------------- */
#include <qse/unpack.h>
/* --------------------------------------------------- */
struct qse_dhcp6_pktinf_t
{
qse_dhcp6_pkt_hdr_t* hdr;
qse_size_t len;
};
typedef struct qse_dhcp6_pktinf_t qse_dhcp6_pktinf_t;
#ifdef __cplusplus
extern "C" {
#endif
QSE_EXPORT qse_dhcp6_opt_hdr_t* qse_dhcp6_find_option (
const qse_dhcp6_pktinf_t* pkt,
int code
);
#ifdef __cplusplus
}
#endif
#endif

207
qse/include/qse/dhcp/dhcpmsg.h
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@ -1,210 +1,7 @@
#ifndef _QSE_DHCP_DHCPMSG_H_
#define _QSE_DHCP_DHCPMSG_H_
#include <qse/types.h>
#include <qse/macros.h>
#include <qse/dhcp/dhcp4msg.h>
#include <qse/dhcp/dhcp6msg.h>
#define QSE_DHCP4_SERVER_PORT 67
#define QSE_DHCP4_CLIENT_PORT 68
#define QSE_DHCP4_MAGIC_COOKIE 0x63825363
/* operation code */
enum qse_dhcp4_op_t
{
QSE_DHCP4_OP_BOOTREQUEST = 1,
QSE_DHCP4_OP_BOOTREPLY = 2
};
enum qse_dhcp4_htype_t
{
QSE_DHCP4_HTYPE_ETHERNET = 1,
QSE_DHCP4_HTYPE_IEEE802 = 6,
QSE_DHCP4_HTYPE_ARCNET = 7,
QSE_DHCP4_HTYPE_APPLETALK = 8,
QSE_DHCP4_HTYPE_HDLC = 17,
QSE_DHCP4_HTYPE_ATM = 19,
QSE_DHCP4_HTYPE_INFINIBAND = 32
};
/* option codes (partial) */
enum qse_dhcp4_opt_t
{
QSE_DHCP4_OPT_PADDING = 0x00,
QSE_DHCP4_OPT_SUBNET = 0x01,
QSE_DHCP4_OPT_TIME_OFFSET = 0x02,
QSE_DHCP4_OPT_ROUTER = 0x03,
QSE_DHCP4_OPT_TIME_SERVER = 0x04,
QSE_DHCP4_OPT_NAME_SERVER = 0x05,
QSE_DHCP4_OPT_DNS_SERVER = 0x06,
QSE_DHCP4_OPT_LOG_SERVER = 0x07,
QSE_DHCP4_OPT_COOKIE_SERVER = 0x08,
QSE_DHCP4_OPT_LPR_SERVER = 0x09,
QSE_DHCP4_OPT_HOST_NAME = 0x0c,
QSE_DHCP4_OPT_BOOT_SIZE = 0x0d,
QSE_DHCP4_OPT_DOMAIN_NAME = 0x0f,
QSE_DHCP4_OPT_SWAP_SERVER = 0x10,
QSE_DHCP4_OPT_ROOT_PATH = 0x11,
QSE_DHCP4_OPT_IP_TTL = 0x17,
QSE_DHCP4_OPT_MTU = 0x1a,
QSE_DHCP4_OPT_BROADCAST = 0x1c,
QSE_DHCP4_OPT_NTP_SERVER = 0x2a,
QSE_DHCP4_OPT_WINS_SERVER = 0x2c,
QSE_DHCP4_OPT_REQUESTED_IPADDR = 0x32,
QSE_DHCP4_OPT_LEASE_TIME = 0x33,
QSE_DHCP4_OPT_OVERLOAD = 0x34, /* overload sname or file */
QSE_DHCP4_OPT_MESSAGE_TYPE = 0x35,
QSE_DHCP4_OPT_SERVER_ID = 0x36,
QSE_DHCP4_OPT_PARAM_REQ = 0x37,
QSE_DHCP4_OPT_MESSAGE = 0x38,
QSE_DHCP4_OPT_MAX_SIZE = 0x39,
QSE_DHCP4_OPT_T1 = 0x3a,
QSE_DHCP4_OPT_T2 = 0x3b,
QSE_DHCP4_OPT_VENDOR = 0x3c,
QSE_DHCP4_OPT_CLIENT_ID = 0x3d,
QSE_DHCP4_OPT_RELAY = 0x52,
QSE_DHCP4_OPT_SUBNET_SELECTION = 0x76,
QSE_DHCP4_OPT_END = 0xFF
};
/* flags for QSE_DHCP4_OPT_OVERLOAD */
enum qse_dhcp4_opt_overload_t
{
QSE_DHCP4_OPT_OVERLOAD_FILE = (1 << 0),
QSE_DHCP4_OPT_OVERLOAD_SNAME = (1 << 1)
};
/* flags for QSE_DHCP4_OPT_OVERLOAD */
enum qse_dhcp4_opt_relay_t
{
QSE_DHCP4_OPT_RELAY_CIRCUIT_ID = 1,
QSE_DHCP4_OPT_RELAY_REMOTE_ID = 2
};
/* message type */
enum qse_dhcp4_msg_t
{
QSE_DHCP4_MSG_DISCOVER = 1,
QSE_DHCP4_MSG_OFFER = 2,
QSE_DHCP4_MSG_REQUEST = 3,
QSE_DHCP4_MSG_DECLINE = 4,
QSE_DHCP4_MSG_ACK = 5,
QSE_DHCP4_MSG_NAK = 6,
QSE_DHCP4_MSG_RELEASE = 7,
QSE_DHCP4_MSG_INFORM = 8,
/*QSE_DHCP4_MSG_RENEW = 9,*/
QSE_DHCP4_MSG_LEASE_QUERY = 10,
QSE_DHCP4_MSG_LEASE_UNASSIGNED = 11,
QSE_DHCP4_MSG_LEASE_UNKNOWN = 12,
QSE_DHCP4_MSG_LEASE_ACTIVE = 13,
QSE_DHCP4_MSG_BULK_LEASE_QUERY = 14,
QSE_DHCP4_MSG_LEASE_QUERY_DONE = 15
};
#include <qse/pack1.h>
struct qse_dhcp4_pkt_hdr_t
{
qse_uint8_t op;
qse_uint8_t htype;
qse_uint8_t hlen;
qse_uint8_t hops;
qse_uint32_t xid; /* transaction id */
qse_uint16_t secs; /* seconds elapsed */
qse_uint16_t flags; /* bootp flags */
qse_uint32_t ciaddr; /* client ip */
qse_uint32_t yiaddr; /* your ip */
qse_uint32_t siaddr; /* next server ip */
qse_uint32_t giaddr; /* relay agent ip */
qse_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 qse_dhcp4_pkt_hdr_t qse_dhcp4_pkt_hdr_t;
struct qse_dhcp4_opt_hdr_t
{
qse_uint8_t code;
qse_uint8_t len;
};
typedef struct qse_dhcp4_opt_hdr_t qse_dhcp4_opt_hdr_t;
typedef int (*qse_dhcp4_opt_walker_t) (qse_dhcp4_opt_hdr_t* opt);
struct qse_dhcp4_pktinf_t
{
qse_dhcp4_pkt_hdr_t* hdr;
qse_size_t len;
};
typedef struct qse_dhcp4_pktinf_t qse_dhcp4_pktinf_t;
struct qse_dhcp4_pktbuf_t
{
qse_dhcp4_pkt_hdr_t* hdr;
qse_size_t len;
qse_size_t capa;
};
typedef struct qse_dhcp4_pktbuf_t qse_dhcp4_pktbuf_t;
#include <qse/unpack.h>
#ifdef __cplusplus
extern "C" {
#endif
QSE_EXPORT int qse_dhcp4_initialize_pktbuf (
qse_dhcp4_pktbuf_t* pkt,
void* buf,
qse_size_t capa
);
QSE_EXPORT int qse_dhcp4_add_option (
qse_dhcp4_pktbuf_t* pkt,
int code,
void* optr, /**< option data pointer */
qse_uint8_t olen /**< option data length */
);
QSE_EXPORT void qse_dhcp4_compact_options (
qse_dhcp4_pktbuf_t* pkt
);
#if 0
QSE_EXPORT int qse_dhcp4_add_options (
qse_dhcp4_pkt_hdr_t* pkt,
qse_size_t len,
qse_size_t max,
int code,
qse_uint8_t* optr, /* option data */
qse_uint8_t olen /* option length */
);
#endif
QSE_EXPORT int qse_dhcp4_walk_options (
const qse_dhcp4_pktinf_t* pkt,
qse_dhcp4_opt_walker_t walker
);
QSE_EXPORT qse_dhcp4_opt_hdr_t* qse_dhcp4_find_option (
const qse_dhcp4_pktinf_t* pkt,
int code
);
QSE_EXPORT qse_uint8_t* qse_dhcp4_get_relay_suboption (
const qse_uint8_t* ptr,
qse_uint8_t len,
int code,
qse_uint8_t* olen
);
#ifdef __cplusplus
}
#endif
#endif