use bounds-checking lookup functions for string constants
This commit is contained in:
Brendan O'Dea
parent
5c3bc79ed4
commit
2a09904461
2 changed files with 194 additions and 151 deletions
231
constants.c
231
constants.c
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@ -1,23 +1,37 @@
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// L2TPNS: constants
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char const *cvs_id_constants = "$Id: constants.c,v 1.3 2004-06-28 02:43:13 fred_nerk Exp $";
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char const *cvs_id_constants = "$Id: constants.c,v 1.4 2005-01-05 13:37:56 bodea Exp $";
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#include <stdio.h>
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#include "constants.h"
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#include <memory.h>
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const char *lcp_types[MAX_LCP_TYPE+1] = {
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"Reserved",
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"Maximum-Receive-Unit",
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"Async-Control-Map",
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"Authentication-Protocol",
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"Quality-Protocol",
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"Magic-Number",
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"Reserved 6",
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"Protocol-Field-Compression",
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"Address-and-Control-Field-Compression",
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};
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#define CONSTANT(table, ...) \
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static char const *table ## s[] = { \
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__VA_ARGS__ \
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}; \
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char const *table(int index) \
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{ \
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static char n[16]; \
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if (index >= 0 && index < sizeof(table ## s) / sizeof(table ## s[0]) \
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&& table ## s[index]) \
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return table ## s[index]; \
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snprintf(n, sizeof(n), "%d", index); \
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return n; \
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}
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const char *avpnames[MAX_AVPNAME+1] = {
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CONSTANT(lcp_type,
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0, // 0
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"Maximum-Receive-Unit", // 1
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"Async-Control-Map", // 2
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"Authentication-Protocol", // 3
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"Quality-Protocol", // 4
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"Magic-Number", // 5
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0, // 6
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"Protocol-Field-Compression", // 7
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"Address-and-Control-Field-Compression" // 8
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)
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CONSTANT(avp_name,
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"Message Type", // 0
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"Result Code", // 1
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"Protocol Version", // 2
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@ -38,7 +52,7 @@ const char *avpnames[MAX_AVPNAME+1] = {
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"Maximum BPS", // 17
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"Bearer Type", // 18 (2 = Analog, 1 = Digital)
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"Framing Type", // 19 (2 = Async, 1 = Sync)
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"Reserved 20", // 20
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0, // 20
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"Called Number", // 21
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"Calling Number", // 22
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"Sub Address", // 23
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@ -57,84 +71,127 @@ const char *avpnames[MAX_AVPNAME+1] = {
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"Random Vector", // 36
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"Private Group ID", // 37
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"Rx Connect Speed", // 38
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"Sequencing Required", // 39
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};
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"Sequencing Required" // 39
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)
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const char *stopccn_result_codes[MAX_STOPCCN_RESULT_CODE+1] = {
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"Reserved",
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"General request to clear control connection",
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"General error--Error Code indicates the problem",
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"Control channel already exists",
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"Requester is not authorized to establish a control channel",
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"The protocol version of the requester is not supported",
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"Requester is being shut down",
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"Finite State Machine error",
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};
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CONSTANT(stopccn_result_code,
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0, // 0
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"General request to clear control connection", // 1
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"General error--Error Code indicates the problem", // 2
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"Control channel already exists", // 3
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"Requester is not authorized to establish a"
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" control channel", // 4
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"The protocol version of the requester is not"
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" supported", // 5
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"Requester is being shut down", // 6
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"Finite State Machine error" // 7
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)
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const char *cdn_result_codes[MAX_CDN_RESULT_CODE+1] = {
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"Reserved",
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"Call disconnected due to loss of carrier",
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"Call disconnected for the reason indicated in error code",
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"Call disconnected for administrative reasons",
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"Call failed due to lack of appropriate facilities being available (temporary condition)",
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"Call failed due to lack of appropriate facilities being available (permanent condition)",
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"Invalid destination",
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"Call failed due to no carrier detected",
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"Call failed due to detection of a busy signal",
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"Call failed due to lack of a dial tone",
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"Call was not established within time allotted by LAC",
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"Call was connected but no appropriate framing was detected",
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};
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CONSTANT(cdn_result_code,
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0, // 0
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"Call disconnected due to loss of carrier", // 1
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"Call disconnected for the reason indicated in"
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" error code", // 2
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"Call disconnected for administrative reasons", // 3
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"Call failed due to lack of appropriate facilities"
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" being available (temporary condition)", // 4
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"Call failed due to lack of appropriate facilities"
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" being available (permanent condition)", // 5
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"Invalid destination", // 6
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"Call failed due to no carrier detected", // 7
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"Call failed due to detection of a busy signal", // 8
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"Call failed due to lack of a dial tone", // 9
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"Call was not established within time allotted by"
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" LAC", // 10
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"Call was connected but no appropriate framing was"
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" detected" // 11
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)
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const char *error_codes[MAX_ERROR_CODE+1] = {
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"No general error",
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"No control connection exists yet for this LAC-LNS pair",
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"Length is wrong",
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"One of the field values was out of range or reserved field was non-zero",
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"Insufficient resources to handle this operation now",
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"The Session ID is invalid in this context",
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"A generic vendor-specific error occurred in the LAC",
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"Try another LNS",
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"Session or tunnel was shutdown due to receipt of an unknown AVP with the M-bit set",
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};
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CONSTANT(error_code,
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"No general error", // 0
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"No control connection exists yet for this LAC-LNS"
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" pair", // 1
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"Length is wrong", // 2
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"One of the field values was out of range or"
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" reserved field was non-zero", // 3
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"Insufficient resources to handle this operation"
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" now", // 4
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"The Session ID is invalid in this context", // 5
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"A generic vendor-specific error occurred in the"
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" LAC", // 6
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"Try another LNS", // 7
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"Session or tunnel was shutdown due to receipt of"
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" an unknown AVP with the M-bit set" // 8
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)
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const char *authtypes[MAX_AUTHTYPE+1] = {
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"Reserved",
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"Textual username/password exchange",
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"PPP CHAP",
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"PPP PAP",
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"No Authentication",
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"Microsoft CHAP Version 1 (MSCHAPv1)",
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};
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CONSTANT(auth_type,
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0, // 0
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"Textual username/password exchange", // 1
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"PPP CHAP", // 2
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"PPP PAP", // 3
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"No Authentication", // 4
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"Microsoft CHAP Version 1 (MSCHAPv1)" // 5
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)
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const char *radius_states[MAX_RADIUS_STATE+1] = {
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"RADIUSNULL",
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"RADIUSCHAP",
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"RADIUSAUTH",
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"RADIUSIPCP",
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"RADIUSSTART",
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"RADIUSSTOP",
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"RADIUSWAIT",
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NULL
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};
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CONSTANT(ppp_lcp_type,
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0, // 0
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"ConfigReq", // 1
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"ConfigAck", // 2
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"ConfigNak", // 3
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"ConfigRej", // 4
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"TerminateReq", // 5
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"TerminateAck", // 6
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"CodeRej", // 7
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"ProtocolRej", // 8
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"EchoReq", // 9
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"EchoReply", // 10
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"DiscardRequest", // 11
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"IdentRequest" // 12
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)
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const char *l2tp_message_types[MAX_L2TP_MESSAGE_TYPE+1] = {
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"reserved",
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"SCCRQ",
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"SCCRP",
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"SCCCN",
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CONSTANT(radius_state,
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"RADIUSNULL", // 0
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"RADIUSCHAP", // 1
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"RADIUSAUTH", // 2
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"RADIUSIPCP", // 3
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"RADIUSSTART", // 4
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"RADIUSSTOP", // 5
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"RADIUSWAIT" // 6
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)
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CONSTANT(radius_code,
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0, // 0
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"Access-Request", // 1
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"Access-Accept", // 2
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"Access-Reject", // 3
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"Accounting-Request", // 4
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"Accounting-Response", // 5
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0, // 6
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0, // 7
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0, // 8
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0, // 9
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0, // 10
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"Access-Challenge", // 11
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"Status-Server (experimental)", // 12
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"Status-Client (experimental)" // 13
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)
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CONSTANT(l2tp_message_type,
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0, // 0
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"SCCRQ", // 1
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"SCCRP", // 2
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"SCCCN", // 3
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"StopCCN", // 4
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"reserved",
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"HELLO",
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"OCRQ",
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"OCRP",
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"OCCN",
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0, // 5
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"HELLO", // 6
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"OCRQ", // 7
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"OCRP", // 8
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"OCCN", // 9
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"ICRQ", // 10
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"ICRP",
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"ICCN",
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"reserved",
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"CDN",
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"ICRP", // 11
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"ICCN", // 12
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0, // 13
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"CDN", // 14
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"WEN", // 15
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"SLI",
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};
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"SLI" // 16
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)
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34
constants.h
34
constants.h
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@ -1,29 +1,15 @@
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#ifndef __CONSTANTS_H__
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#define __CONSTANTS_H__
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#define MAX_LCP_TYPE 8
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extern const char *lcp_types[MAX_LCP_TYPE+1];
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#define MAX_AVPNAME 40
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extern const char *avpnames[MAX_AVPNAME+1];
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#define MAX_STOPCCN_RESULT_CODE 7
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extern const char *stopccn_result_codes[MAX_STOPCCN_RESULT_CODE+1];
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#define MAX_CDN_RESULT_CODE 11
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extern const char *cdn_result_codes[MAX_CDN_RESULT_CODE+1];
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#define MAX_ERROR_CODE 8
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extern const char *error_codes[MAX_ERROR_CODE+1];
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#define MAX_AUTHTYPE 5
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extern const char *authtypes[MAX_AUTHTYPE+1];
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// Can remove the NULL end now
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#define MAX_RADIUS_STATE 8
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extern const char *radius_states[MAX_RADIUS_STATE+1];
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#define MAX_L2TP_MESSAGE_TYPE 16
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extern const char *l2tp_message_types[MAX_L2TP_MESSAGE_TYPE+1];
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char const *lcp_type(int type);
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char const *avp_name(int avp);
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char const *stopccn_result_code(int code);
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char const *cdn_result_code(int code);
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char const *error_code(int code);
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char const *auth_type(int type);
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char const *ppp_lcp_type(int type);
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char const *radius_state(int state);
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char const *radius_code(int code);
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char const *l2tp_message_type(int type);
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#endif /* __CONSTANTS_H__ */
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