222 lines
11 KiB
C
222 lines
11 KiB
C
//
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// Created by xajhuang on 2023/3/21.
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//
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#include <string.h>
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#include "common.h"
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#include "dhcp_options.h"
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#include "user_errno.h"
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static const DHCP_OPTION_CFG g_opCfg[] = {
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// region DHCP optinos configure table
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{"SubnetMask", OPT_NETMASK, 3, TRUE },
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{"TimeOffset", OPT_TIMEOFFSET, 4, TRUE },
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{"Router", OPT_ROUTER, 3, TRUE },
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{"TimeServer", OPT_TIMESERVER, 3, TRUE },
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{"NameServer", OPT_NAMESERVER, 3, TRUE },
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{"DomainServer", OPT_DNS, 3, TRUE },
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{"LogServer", OPT_LOGSERVER, 3, TRUE },
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{"QuotesServer", OPT_COOKIESERVER, 3, TRUE },
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{"LPRServer", OPT_LPRSERVER, 3, TRUE },
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{"ImpressServer", OPT_IMPRESSSERVER, 3, TRUE },
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{"RLPServer", OPT_RESLOCSERVER, 3, TRUE },
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{"Hostname", OPT_HOSTNAME, 1, TRUE },
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{"BootFileSize", OPT_BOOTFILESIZE, 5, TRUE },
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{"MeritDumpFile", OPT_MERITDUMP, 1, TRUE },
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{"DomainName", OPT_DOMAINNAME, 1, TRUE },
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{"SwapServer", OPT_SWAPSERVER, 3, TRUE },
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{"RootPath", OPT_ROOTPATH, 1, TRUE },
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{"ExtensionFile", OPT_EXTSPATH, 1, TRUE },
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{"ForwardOn/Off", OPT_IPFORWARD, 7, TRUE },
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{"SrcRteOn/Off", OPT_NONLOCALSR, 7, TRUE },
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{"PolicyFilter", OPT_POLICYFILTER, 8, TRUE },
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{"MaxDGAssembly", OPT_MAXREASSEMBLE, 5, TRUE },
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{"DefaultIPTTL", OPT_IPTTL, 6, TRUE },
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{"MTUTimeout", OPT_PATHMTUAGING, 4, TRUE },
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{"MTUPlateau", OPT_PATHMTUPLATEAU, 2, TRUE },
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{"MTUInterface", OPT_INTERFACEMTU, 5, TRUE },
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{"MTUSubnet", OPT_SUBNETSLOCAL, 7, TRUE },
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{"BroadcastAddress", OPT_BCASTADDRESS, 3, TRUE },
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{"MaskDiscovery", OPT_MASKDISCOVERY, 7, TRUE },
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{"MaskSupplier", OPT_MASKSUPPLIER, 7, TRUE },
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{"RouterDiscovery", OPT_ROUTERDISCOVERY, 7, TRUE },
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{"RouterRequest", OPT_ROUTERSOLIC, 3, TRUE },
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{"StaticRoute", OPT_STATICROUTE, 8, TRUE },
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{"Trailers", OPT_TRAILERENCAPS, 7, TRUE },
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{"ARPTimeout", OPT_ARPTIMEOUT, 4, TRUE },
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{"Ethernet", OPT_ETHERNETENCAPS, 7, TRUE },
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{"DefaultTCPTTL", OPT_TCPTTL, 6, TRUE },
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{"KeepaliveTime", OPT_TCPKEEPALIVEINT, 4, TRUE },
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{"KeepaliveData", OPT_TCPKEEPALIVEGRBG, 7, TRUE },
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{"NISDomain", OPT_NISDOMAIN, 1, TRUE },
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{"NISServers", OPT_NISSERVERS, 3, TRUE },
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{"NTPServers", OPT_NTPSERVERS, 3, TRUE },
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{"VendorSpecificInf", OPT_VENDORSPECIFIC, 2, FALSE},
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{"NETBIOSNameSrv", OPT_NETBIOSNAMESERV, 3, TRUE },
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{"NETBIOSDistSrv", OPT_NETBIOSDGDIST, 3, TRUE },
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{"NETBIOSNodeType", OPT_NETBIOSNODETYPE, 6, TRUE },
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{"NETBIOSScope", OPT_NETBIOSSCOPE, 1, TRUE },
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{"XWindowFont", OPT_X11FONTS, 1, TRUE },
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{"XWindowManager", OPT_X11DISPLAYMNGR, 3, TRUE },
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{"AddressRequest", OPT_REQUESTEDIPADDR, 3, TRUE },
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{"AddressTime", OPT_IPADDRLEASE, 4, TRUE },
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{"OverLoad", OPT_OVERLOAD, 7, FALSE},
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{"DHCPMsgType", OPT_MESSAGETYPE, 6, TRUE },
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{"DHCPServerId", OPT_SERVERID, 3, TRUE },
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{"ParameterList", OPT_PARAMREQLIST, 2, TRUE },
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{"DHCPMessage", OPT_MESSAGE, 1, FALSE},
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{"DHCPMaxMsgSize", OPT_MAXDHCPMSGSIZE, 5, FALSE},
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{"RenewalTime", OPT_RENEWALTIME, 4, TRUE },
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{"RebindingTime", OPT_REBINDINGTIME, 4, TRUE },
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{"ClassId", OPT_VENDORCLASSID, 1, TRUE },
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{"ClientId", OPT_CLIENTID, 2, FALSE},
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{"NetWareIPDomain", OPT_NETWARE_IPDOMAIN, 1, TRUE },
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{"NetWareIPOption", OPT_NETWARE_IPOPTION, 2, TRUE },
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{"NISDomainName", OPT_NISPLUSDOMAIN, 1, TRUE },
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{"NISServerAddr", OPT_NISPLUSSERVERS, 3, TRUE },
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{"TFTPServerName", OPT_TFTPSERVER, 1, TRUE },
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{"BootFileOption", OPT_BOOTFILE, 1, TRUE },
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{"HomeAgentAddrs", OPT_MOBILEIPHOME, 3, TRUE },
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{"SMTPServer", OPT_SMTPSERVER, 3, TRUE },
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{"POP3Server", OPT_POP3SERVER, 3, TRUE },
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{"NNTPServer", OPT_NNTPSERVER, 3, TRUE },
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{"WWWServer", OPT_WWWSERVER, 3, TRUE },
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{"FingerServer", OPT_FINGERSERVER, 3, TRUE },
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{"IRCServer", OPT_IRCSERVER, 3, TRUE },
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{"StreetTalkServer", OPT_STSERVER, 3, TRUE },
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{"STDAServer", OPT_STDASERVER, 3, TRUE },
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{"UserClass", OPT_USERCLASS, 1, FALSE},
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{"DirectoryAgent", OPT_SLPDIRAGENT, 1, TRUE },
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{"ServiceScope", OPT_SLPDIRSCOPE, 1, TRUE },
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{"RapidCommit", OPT_RAPIDCOMMIT, 2, FALSE},
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{"ClientFQDN", OPT_CLIENTFQDN, 2, FALSE},
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{"RelayAgentInformation", OPT_RELAYAGENTINFO, 2, FALSE},
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{"iSNS", OPT_I_SNS, 1, TRUE },
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{"NDSServers", OPT_NDSSERVERS, 3, TRUE },
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{"NDSTreeName", OPT_NDSTREENAME, 1, TRUE },
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{"NDSContext", OPT_NDSCONTEXT, 1, TRUE },
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{"LDAP", OPT_LDAP, 1, TRUE },
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{"PCode", OPT_P_CODE, 1, TRUE },
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{"TCode", OPT_T_CODE, 1, TRUE },
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{"NetInfoAddress", OPT_NETINFOADDRESS, 3, TRUE },
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{"NetInfoTag", OPT_NETINFOTAG, 1, TRUE },
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{"URL", OPT_URL, 1, TRUE },
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{"AutoConfig", OPT_AUTO_CONFIG, 7, TRUE },
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{"NameServiceSearch", OPT_NAMESERVICESEARCH, 2, TRUE },
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{"SubnetSelectionOption", OPT_SUBNETSELECTION, 3, TRUE },
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{"DomainSearch", OPT_DOMAINSEARCH, 1, TRUE },
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{"SIPServersDHCPOption", OPT_SIPSERVERSDHCP, 1, TRUE },
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{"ClasslessStaticRoute", OPT_CLASSLESSSTATICROUTE, 1, TRUE },
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{"CCC", OPT_CCC, 1, TRUE },
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{"TFTPServerIPaddress", OPT_TFPTSERVERIPADDRESS, 3, TRUE },
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{"CallServerIPaddress", OPT_CALLSERVERIPADDRESS, 3, TRUE },
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{"DiscriminationString", OPT_DISCRIMINATIONSTRING, 1, TRUE },
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{"RemoteStatisticsServerIPAddress", OPT_REMOTESTATISTICSSERVER, 3, TRUE },
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{"HTTPProxyPhone", OPT_HTTPPROXYFORPHONE_SPEC, 3, TRUE },
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{"OPTION_CAPWAP_AC_V4", 138, 1, TRUE },
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{"OPTIONIPv4_AddressMoS", 139, 1, TRUE },
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{"OPTIONIPv4_FQDNMoS", 140, 1, TRUE },
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{"SIPUAServiceDomains", 141, 1, TRUE },
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{"OPTIONIPv4_AddressANDSF", 142, 1, TRUE },
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{"IPTelephone", 176, 1, TRUE },
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{"ConfigurationFile", 209, 1, TRUE },
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{"PathPrefix", 210, 1, TRUE },
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{"RebootTime", 211, 4, TRUE },
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{"OPTION_6RD", 212, 1, TRUE },
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{"OPTION_V4_ACCESS_DOMAIN", 213, 1, TRUE },
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{"BootFileName", OPT_BP_FILE, 1, TRUE },
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{"NextServer", OPT_NEXTSERVER, 3, TRUE },
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// endregion
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};
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static DHCP_OPTION_CFG g_optRuntime[256];
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void dhcp_option_cfg_init() {
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int i;
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memset(g_optRuntime, 0, sizeof(g_optRuntime));
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for (i = 0; i < ARRAY_SIZE(g_opCfg); i++) {
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if (g_opCfg[i].enable) {
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memcpy(&g_optRuntime[g_opCfg[i].opTag], &g_opCfg[i], sizeof(DHCP_OPTION_CFG));
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}
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}
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}
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int dhcp_add_u8_option(U8 *pBegin, int opt, U8 value) {
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*pBegin = opt;
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pBegin++;
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*pBegin = 1;
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pBegin++;
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*pBegin = value;
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return 3;
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}
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int dhcp_add_u32_option(U8 *pBegin, int opt, U32 value) {
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*pBegin = opt;
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pBegin++;
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*pBegin = 4;
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pBegin++;
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memcpy(pBegin, &value, 4);
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return 4 + 2;
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}
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int dhcp_add_buf_option(U8 *pBegin, int opt, U8 *buf, U8 nSize) {
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*pBegin = opt;
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pBegin++;
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*pBegin = nSize;
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pBegin++;
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memcpy(pBegin, buf, nSize);
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pBegin += nSize;
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return nSize + 2;
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}
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int dhcp_add_string_option(U8 *pBegin, int opt, const char *buf) {
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dhcp_add_buf_option(pBegin, opt, (U8 *)buf, strlen(buf) + 1);
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return (int)(strlen(buf) + 1 + 2);
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}
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int dhcp_get_option(int opt, U8 *pOptData, U32 nSize, PDHCP_OPT pVal) {
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U8 *p = pOptData;
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if (!pVal || !pOptData) {
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return -ERR_INPUT_PARAMS;
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}
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while (p < (pOptData + nSize)) {
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U8 id = *p;
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U8 len = *(p + 1);
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if (id == 0xFF) {
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return -ERR_ITEM_UNEXISTS;
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}
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if (g_optRuntime[id].enable && id == opt) {
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pVal->len = len;
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pVal->pValue = p + 2;
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return ERR_SUCCESS;
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}
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p = p + len + 2;
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}
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return -ERR_ITEM_UNEXISTS;
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}
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const char* dhcp_get_opName(int opt) {
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for(int i=0; i<ARRAY_SIZE(g_opCfg); i++) {
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if(opt == g_opCfg[i].opTag)
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return g_opCfg[i].opName;
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}
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return "Unknown";
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}
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int dhcp_get_opType(int opt) {
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for(int i=0; i<ARRAY_SIZE(g_opCfg); i++) {
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if(opt == g_opCfg[i].opTag)
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return g_opCfg[i].opType;
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}
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return -1;
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} |