ISC DHCP  4.3.3
A reference DHCPv4 and DHCPv6 implementation
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Pages
dhcp.h File Reference

Go to the source code of this file.

Data Structures

struct  dhcp_packet
 

Macros

#define DHCP_UDP_OVERHEAD
 
#define DHCP_SNAME_LEN   64
 
#define DHCP_FILE_LEN   128
 
#define DHCP_FIXED_NON_UDP   236
 
#define DHCP_FIXED_LEN   (DHCP_FIXED_NON_UDP + DHCP_UDP_OVERHEAD)
 
#define BOOTP_MIN_LEN   300
 
#define DHCP_MTU_MAX   1500
 
#define DHCP_MTU_MIN   576
 
#define DHCP_MAX_OPTION_LEN   (DHCP_MTU_MAX - DHCP_FIXED_LEN)
 
#define DHCP_MIN_OPTION_LEN   (DHCP_MTU_MIN - DHCP_FIXED_LEN)
 
#define BOOTREQUEST   1
 
#define BOOTREPLY   2
 
#define BOOTP_BROADCAST   32768L
 
#define HTYPE_ETHER   1 /* Ethernet 10Mbps */
 
#define HTYPE_IEEE802   6 /* IEEE 802.2 Token Ring... */
 
#define HTYPE_FDDI   8 /* FDDI... */
 
#define HTYPE_INFINIBAND   32 /* IP over Infiniband */
 
#define HTYPE_IPMP
 
#define HTYPE_RESERVED   0 /* RFC 5494 */
 
#define DHCP_OPTIONS_COOKIE   "\143\202\123\143"
 
#define DHO_PAD   0
 
#define DHO_SUBNET_MASK   1
 
#define DHO_TIME_OFFSET   2
 
#define DHO_ROUTERS   3
 
#define DHO_TIME_SERVERS   4
 
#define DHO_NAME_SERVERS   5
 
#define DHO_DOMAIN_NAME_SERVERS   6
 
#define DHO_LOG_SERVERS   7
 
#define DHO_COOKIE_SERVERS   8
 
#define DHO_LPR_SERVERS   9
 
#define DHO_IMPRESS_SERVERS   10
 
#define DHO_RESOURCE_LOCATION_SERVERS   11
 
#define DHO_HOST_NAME   12
 
#define DHO_BOOT_SIZE   13
 
#define DHO_MERIT_DUMP   14
 
#define DHO_DOMAIN_NAME   15
 
#define DHO_SWAP_SERVER   16
 
#define DHO_ROOT_PATH   17
 
#define DHO_EXTENSIONS_PATH   18
 
#define DHO_IP_FORWARDING   19
 
#define DHO_NON_LOCAL_SOURCE_ROUTING   20
 
#define DHO_POLICY_FILTER   21
 
#define DHO_MAX_DGRAM_REASSEMBLY   22
 
#define DHO_DEFAULT_IP_TTL   23
 
#define DHO_PATH_MTU_AGING_TIMEOUT   24
 
#define DHO_PATH_MTU_PLATEAU_TABLE   25
 
#define DHO_INTERFACE_MTU   26
 
#define DHO_ALL_SUBNETS_LOCAL   27
 
#define DHO_BROADCAST_ADDRESS   28
 
#define DHO_PERFORM_MASK_DISCOVERY   29
 
#define DHO_MASK_SUPPLIER   30
 
#define DHO_ROUTER_DISCOVERY   31
 
#define DHO_ROUTER_SOLICITATION_ADDRESS   32
 
#define DHO_STATIC_ROUTES   33
 
#define DHO_TRAILER_ENCAPSULATION   34
 
#define DHO_ARP_CACHE_TIMEOUT   35
 
#define DHO_IEEE802_3_ENCAPSULATION   36
 
#define DHO_DEFAULT_TCP_TTL   37
 
#define DHO_TCP_KEEPALIVE_INTERVAL   38
 
#define DHO_TCP_KEEPALIVE_GARBAGE   39
 
#define DHO_NIS_DOMAIN   40
 
#define DHO_NIS_SERVERS   41
 
#define DHO_NTP_SERVERS   42
 
#define DHO_VENDOR_ENCAPSULATED_OPTIONS   43
 
#define DHO_NETBIOS_NAME_SERVERS   44
 
#define DHO_NETBIOS_DD_SERVER   45
 
#define DHO_NETBIOS_NODE_TYPE   46
 
#define DHO_NETBIOS_SCOPE   47
 
#define DHO_FONT_SERVERS   48
 
#define DHO_X_DISPLAY_MANAGER   49
 
#define DHO_DHCP_REQUESTED_ADDRESS   50
 
#define DHO_DHCP_LEASE_TIME   51
 
#define DHO_DHCP_OPTION_OVERLOAD   52
 
#define DHO_DHCP_MESSAGE_TYPE   53
 
#define DHO_DHCP_SERVER_IDENTIFIER   54
 
#define DHO_DHCP_PARAMETER_REQUEST_LIST   55
 
#define DHO_DHCP_MESSAGE   56
 
#define DHO_DHCP_MAX_MESSAGE_SIZE   57
 
#define DHO_DHCP_RENEWAL_TIME   58
 
#define DHO_DHCP_REBINDING_TIME   59
 
#define DHO_VENDOR_CLASS_IDENTIFIER   60
 
#define DHO_DHCP_CLIENT_IDENTIFIER   61
 
#define DHO_NWIP_DOMAIN_NAME   62
 
#define DHO_NWIP_SUBOPTIONS   63
 
#define DHO_USER_CLASS   77
 
#define DHO_FQDN   81
 
#define DHO_DHCP_AGENT_OPTIONS   82
 
#define DHO_AUTHENTICATE   90 /* RFC3118, was 210 */
 
#define DHO_CLIENT_LAST_TRANSACTION_TIME   91
 
#define DHO_ASSOCIATED_IP   92
 
#define DHO_PXE_CLIENT_ID   97 /* RFC4578 */
 
#define DHO_SUBNET_SELECTION   118 /* RFC3011! */
 
#define DHO_DOMAIN_SEARCH   119 /* RFC3397 */
 
#define DHO_CLASSLESS_STATIC_ROUTES   121 /* RFC3442 */
 
#define DHO_VIVCO_SUBOPTIONS   124
 
#define DHO_VIVSO_SUBOPTIONS   125
 
#define DHO_END   255
 
#define DHCPDISCOVER   1
 
#define DHCPOFFER   2
 
#define DHCPREQUEST   3
 
#define DHCPDECLINE   4
 
#define DHCPACK   5
 
#define DHCPNAK   6
 
#define DHCPRELEASE   7
 
#define DHCPINFORM   8
 
#define DHCPLEASEQUERY   10
 
#define DHCPLEASEUNASSIGNED   11
 
#define DHCPLEASEUNKNOWN   12
 
#define DHCPLEASEACTIVE   13
 
#define RAI_CIRCUIT_ID   1
 
#define RAI_REMOTE_ID   2
 
#define RAI_AGENT_ID   3
 
#define RAI_LINK_SELECT   5
 
#define FQDN_NO_CLIENT_UPDATE   1
 
#define FQDN_SERVER_UPDATE   2
 
#define FQDN_ENCODED   3
 
#define FQDN_RCODE1   4
 
#define FQDN_RCODE2   5
 
#define FQDN_HOSTNAME   6
 
#define FQDN_DOMAINNAME   7
 
#define FQDN_FQDN   8
 
#define FQDN_SUBOPTION_COUNT   8
 
#define VENDOR_ISC_SUBOPTIONS   2495
 

Macro Definition Documentation

#define BOOTP_BROADCAST   32768L

Definition at line 73 of file dhcp.h.

#define BOOTP_MIN_LEN   300

Definition at line 40 of file dhcp.h.

#define BOOTREPLY   2

Definition at line 70 of file dhcp.h.

#define BOOTREQUEST   1

Definition at line 69 of file dhcp.h.

#define DHCP_FILE_LEN   128

Definition at line 36 of file dhcp.h.

#define DHCP_FIXED_LEN   (DHCP_FIXED_NON_UDP + DHCP_UDP_OVERHEAD)

Definition at line 38 of file dhcp.h.

#define DHCP_FIXED_NON_UDP   236

Definition at line 37 of file dhcp.h.

#define DHCP_MAX_OPTION_LEN   (DHCP_MTU_MAX - DHCP_FIXED_LEN)

Definition at line 45 of file dhcp.h.

#define DHCP_MIN_OPTION_LEN   (DHCP_MTU_MIN - DHCP_FIXED_LEN)

Definition at line 46 of file dhcp.h.

#define DHCP_MTU_MAX   1500

Definition at line 42 of file dhcp.h.

#define DHCP_MTU_MIN   576

Definition at line 43 of file dhcp.h.

#define DHCP_OPTIONS_COOKIE   "\143\202\123\143"

Definition at line 88 of file dhcp.h.

#define DHCP_SNAME_LEN   64

Definition at line 35 of file dhcp.h.

#define DHCP_UDP_OVERHEAD
Value:
(20 + /* IP header */ \
8) /* UDP header */

Definition at line 33 of file dhcp.h.

#define DHCPACK   5

Definition at line 176 of file dhcp.h.

#define DHCPDECLINE   4

Definition at line 175 of file dhcp.h.

#define DHCPDISCOVER   1

Definition at line 172 of file dhcp.h.

#define DHCPINFORM   8

Definition at line 179 of file dhcp.h.

#define DHCPLEASEACTIVE   13

Definition at line 183 of file dhcp.h.

#define DHCPLEASEQUERY   10

Definition at line 180 of file dhcp.h.

#define DHCPLEASEUNASSIGNED   11

Definition at line 181 of file dhcp.h.

#define DHCPLEASEUNKNOWN   12

Definition at line 182 of file dhcp.h.

#define DHCPNAK   6

Definition at line 177 of file dhcp.h.

#define DHCPOFFER   2

Definition at line 173 of file dhcp.h.

#define DHCPRELEASE   7

Definition at line 178 of file dhcp.h.

#define DHCPREQUEST   3

Definition at line 174 of file dhcp.h.

#define DHO_ALL_SUBNETS_LOCAL   27

Definition at line 119 of file dhcp.h.

#define DHO_ARP_CACHE_TIMEOUT   35

Definition at line 127 of file dhcp.h.

#define DHO_ASSOCIATED_IP   92

Definition at line 161 of file dhcp.h.

#define DHO_AUTHENTICATE   90 /* RFC3118, was 210 */

Definition at line 159 of file dhcp.h.

#define DHO_BOOT_SIZE   13

Definition at line 105 of file dhcp.h.

#define DHO_BROADCAST_ADDRESS   28

Definition at line 120 of file dhcp.h.

#define DHO_CLASSLESS_STATIC_ROUTES   121 /* RFC3442 */

Definition at line 165 of file dhcp.h.

#define DHO_CLIENT_LAST_TRANSACTION_TIME   91

Definition at line 160 of file dhcp.h.

#define DHO_COOKIE_SERVERS   8

Definition at line 100 of file dhcp.h.

#define DHO_DEFAULT_IP_TTL   23

Definition at line 115 of file dhcp.h.

#define DHO_DEFAULT_TCP_TTL   37

Definition at line 129 of file dhcp.h.

#define DHO_DHCP_AGENT_OPTIONS   82

Definition at line 158 of file dhcp.h.

#define DHO_DHCP_CLIENT_IDENTIFIER   61

Definition at line 153 of file dhcp.h.

#define DHO_DHCP_LEASE_TIME   51

Definition at line 143 of file dhcp.h.

#define DHO_DHCP_MAX_MESSAGE_SIZE   57

Definition at line 149 of file dhcp.h.

#define DHO_DHCP_MESSAGE   56

Definition at line 148 of file dhcp.h.

#define DHO_DHCP_MESSAGE_TYPE   53

Definition at line 145 of file dhcp.h.

#define DHO_DHCP_OPTION_OVERLOAD   52

Definition at line 144 of file dhcp.h.

#define DHO_DHCP_PARAMETER_REQUEST_LIST   55

Definition at line 147 of file dhcp.h.

#define DHO_DHCP_REBINDING_TIME   59

Definition at line 151 of file dhcp.h.

#define DHO_DHCP_RENEWAL_TIME   58

Definition at line 150 of file dhcp.h.

#define DHO_DHCP_REQUESTED_ADDRESS   50

Definition at line 142 of file dhcp.h.

#define DHO_DHCP_SERVER_IDENTIFIER   54

Definition at line 146 of file dhcp.h.

#define DHO_DOMAIN_NAME   15

Definition at line 107 of file dhcp.h.

#define DHO_DOMAIN_NAME_SERVERS   6

Definition at line 98 of file dhcp.h.

#define DHO_DOMAIN_SEARCH   119 /* RFC3397 */

Definition at line 164 of file dhcp.h.

#define DHO_END   255

Definition at line 169 of file dhcp.h.

#define DHO_EXTENSIONS_PATH   18

Definition at line 110 of file dhcp.h.

#define DHO_FONT_SERVERS   48

Definition at line 140 of file dhcp.h.

#define DHO_FQDN   81

Definition at line 157 of file dhcp.h.

#define DHO_HOST_NAME   12

Definition at line 104 of file dhcp.h.

#define DHO_IEEE802_3_ENCAPSULATION   36

Definition at line 128 of file dhcp.h.

#define DHO_IMPRESS_SERVERS   10

Definition at line 102 of file dhcp.h.

#define DHO_INTERFACE_MTU   26

Definition at line 118 of file dhcp.h.

#define DHO_IP_FORWARDING   19

Definition at line 111 of file dhcp.h.

#define DHO_LOG_SERVERS   7

Definition at line 99 of file dhcp.h.

#define DHO_LPR_SERVERS   9

Definition at line 101 of file dhcp.h.

#define DHO_MASK_SUPPLIER   30

Definition at line 122 of file dhcp.h.

#define DHO_MAX_DGRAM_REASSEMBLY   22

Definition at line 114 of file dhcp.h.

#define DHO_MERIT_DUMP   14

Definition at line 106 of file dhcp.h.

#define DHO_NAME_SERVERS   5

Definition at line 97 of file dhcp.h.

#define DHO_NETBIOS_DD_SERVER   45

Definition at line 137 of file dhcp.h.

#define DHO_NETBIOS_NAME_SERVERS   44

Definition at line 136 of file dhcp.h.

#define DHO_NETBIOS_NODE_TYPE   46

Definition at line 138 of file dhcp.h.

#define DHO_NETBIOS_SCOPE   47

Definition at line 139 of file dhcp.h.

#define DHO_NIS_DOMAIN   40

Definition at line 132 of file dhcp.h.

#define DHO_NIS_SERVERS   41

Definition at line 133 of file dhcp.h.

#define DHO_NON_LOCAL_SOURCE_ROUTING   20

Definition at line 112 of file dhcp.h.

#define DHO_NTP_SERVERS   42

Definition at line 134 of file dhcp.h.

#define DHO_NWIP_DOMAIN_NAME   62

Definition at line 154 of file dhcp.h.

#define DHO_NWIP_SUBOPTIONS   63

Definition at line 155 of file dhcp.h.

#define DHO_PAD   0

Definition at line 92 of file dhcp.h.

#define DHO_PATH_MTU_AGING_TIMEOUT   24

Definition at line 116 of file dhcp.h.

#define DHO_PATH_MTU_PLATEAU_TABLE   25

Definition at line 117 of file dhcp.h.

#define DHO_PERFORM_MASK_DISCOVERY   29

Definition at line 121 of file dhcp.h.

#define DHO_POLICY_FILTER   21

Definition at line 113 of file dhcp.h.

#define DHO_PXE_CLIENT_ID   97 /* RFC4578 */

Definition at line 162 of file dhcp.h.

#define DHO_RESOURCE_LOCATION_SERVERS   11

Definition at line 103 of file dhcp.h.

#define DHO_ROOT_PATH   17

Definition at line 109 of file dhcp.h.

#define DHO_ROUTER_DISCOVERY   31

Definition at line 123 of file dhcp.h.

#define DHO_ROUTER_SOLICITATION_ADDRESS   32

Definition at line 124 of file dhcp.h.

#define DHO_ROUTERS   3

Definition at line 95 of file dhcp.h.

#define DHO_STATIC_ROUTES   33

Definition at line 125 of file dhcp.h.

#define DHO_SUBNET_MASK   1

Definition at line 93 of file dhcp.h.

#define DHO_SUBNET_SELECTION   118 /* RFC3011! */

Definition at line 163 of file dhcp.h.

#define DHO_SWAP_SERVER   16

Definition at line 108 of file dhcp.h.

#define DHO_TCP_KEEPALIVE_GARBAGE   39

Definition at line 131 of file dhcp.h.

#define DHO_TCP_KEEPALIVE_INTERVAL   38

Definition at line 130 of file dhcp.h.

#define DHO_TIME_OFFSET   2

Definition at line 94 of file dhcp.h.

#define DHO_TIME_SERVERS   4

Definition at line 96 of file dhcp.h.

#define DHO_TRAILER_ENCAPSULATION   34

Definition at line 126 of file dhcp.h.

#define DHO_USER_CLASS   77

Definition at line 156 of file dhcp.h.

#define DHO_VENDOR_CLASS_IDENTIFIER   60

Definition at line 152 of file dhcp.h.

#define DHO_VENDOR_ENCAPSULATED_OPTIONS   43

Definition at line 135 of file dhcp.h.

#define DHO_VIVCO_SUBOPTIONS   124

Definition at line 166 of file dhcp.h.

#define DHO_VIVSO_SUBOPTIONS   125

Definition at line 167 of file dhcp.h.

#define DHO_X_DISPLAY_MANAGER   49

Definition at line 141 of file dhcp.h.

#define FQDN_DOMAINNAME   7

Definition at line 199 of file dhcp.h.

#define FQDN_ENCODED   3

Definition at line 195 of file dhcp.h.

#define FQDN_FQDN   8

Definition at line 200 of file dhcp.h.

#define FQDN_HOSTNAME   6

Definition at line 198 of file dhcp.h.

#define FQDN_NO_CLIENT_UPDATE   1

Definition at line 193 of file dhcp.h.

#define FQDN_RCODE1   4

Definition at line 196 of file dhcp.h.

#define FQDN_RCODE2   5

Definition at line 197 of file dhcp.h.

#define FQDN_SERVER_UPDATE   2

Definition at line 194 of file dhcp.h.

#define FQDN_SUBOPTION_COUNT   8

Definition at line 201 of file dhcp.h.

#define HTYPE_ETHER   1 /* Ethernet 10Mbps */

Definition at line 76 of file dhcp.h.

#define HTYPE_FDDI   8 /* FDDI... */

Definition at line 78 of file dhcp.h.

#define HTYPE_IEEE802   6 /* IEEE 802.2 Token Ring... */

Definition at line 77 of file dhcp.h.

#define HTYPE_INFINIBAND   32 /* IP over Infiniband */

Definition at line 79 of file dhcp.h.

#define HTYPE_IPMP
Value:
255 /* IPMP - random hw address - there
* is no standard for this so we
* just steal a type */

Definition at line 80 of file dhcp.h.

#define HTYPE_RESERVED   0 /* RFC 5494 */

Definition at line 84 of file dhcp.h.

#define RAI_AGENT_ID   3

Definition at line 189 of file dhcp.h.

#define RAI_CIRCUIT_ID   1

Definition at line 187 of file dhcp.h.

#define RAI_LINK_SELECT   5

Definition at line 190 of file dhcp.h.

#define RAI_REMOTE_ID   2

Definition at line 188 of file dhcp.h.

#define VENDOR_ISC_SUBOPTIONS   2495

Definition at line 204 of file dhcp.h.